Patent Publication Number: US-9896277-B2

Title: Component supply device

Description:
TECHNICAL FIELD 
     The technology disclosed in this specification relates to a component supply device which supplies components to a mounter which mounts components on a board. 
     BACKGROUND ART 
     Component supply devices are arranged adjacent to mounters and supply components to be mounted on a board to a mounter. Mounters mount components supplied from a component supply device on a board. A component supply device using conventional technology is disclosed, for example, in Japanese Unexamined Patent Application Publication Number 2000-114204. 
     BRIEF SUMMARY 
     Problem to be Solved 
     As mentioned above, a component supply device is arranged adjacent to a mounter. Due to this, when a problem arises with the mounter, an operator must access inside the mounter while avoiding the component supply device to resolve the problem with the mounter. However, with conventional component supply devices, sufficient space for an operator to be able to access the mounter is not maintained. 
     Means for Solving the Problem 
     The component supply device disclosed in this specification includes a replenishment section provided with a magazine which houses a component carrying member and a conveyance section which conveys a component carrying member housed in the magazine. Also, a feature is that a replenishment section is slidably attached with respect to a conveyance section. 
     With this component supply device, a replenishment section can be slid with respect to a conveyance section. Due to this, when an operator must access the mounter, the replenishment section can be moved by sliding with respect to the conveyance section and the space can be widened to allow the operator to access the mounter. Conversely, when the operator does not require access to the mounter, the replenishment section can be positioned at an appropriate position for conveying a component carrying member. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
       
         FIG. 1 
       
       A top view of the component mounting system of an embodiment. 
       
         FIG. 2 
       
       A diagram to illustrate an outline configuration of the component supply device equipped in the component mounting system of  FIG. 1 . 
       
         FIG. 3 
       
       Diagram showing the attachment structure provided on the attachment surface of the wafer sheet replenishment section. 
       
         FIG. 4 
       
       Diagram showing the attachment structure provided on the attachment surface of the wafer sheet conveyance section. 
       
         FIG. 5 
       
       Diagram showing the attachment structure of the wafer sheet replenishment section and wafer sheet conveyance section from a cross section through the line V-V of  FIG. 4 . 
       
         FIG. 6 
       
       Diagram showing the attachment structure of the wafer sheet replenishment section and wafer sheet conveyance section from a cross section through the line VI-VI of  FIG. 3 . 
       
         FIG. 7 
       
       A front view schematically showing the structure of the moving table. 
       
         FIG. 8 
       
       Top view of the wafer table. 
       
         FIG. 9 
       
       Diagram showing both the state before rotation and the state after rotation of the wafer table. 
       
         FIG. 10 
       
       Diagram showing schematically the relationship between the moving table, pickup head, and mounting head during face-down supply. 
       
         FIG. 11 
       
       Side view of pickup head (in a state with nozzles positioned at the pickup position) 
       
         FIG. 12 
       
       Side view of pickup head (in a state with nozzles positioned at the transfer position) 
       
         FIG. 13 
       
       Diagram showing the mechanism to flip the pickup nozzles of the pickup head (in a state with nozzles positioned at the pickup position). 
       
         FIG. 14 
       
       Diagram showing the mechanism to flip the pickup nozzles of the pickup head (in a state with nozzles positioned at the transfer position). 
       
         FIG. 15 
       
       Diagram illustrating the path of the cam follower. 
       
         FIG. 16 
       
       Diagram showing the configuration of the axis section of the pickup head. 
       
         FIG. 17 
       
       Top view of wafer sheet. 
       
         FIG. 18 
       
       Flowchart showing the operation of the component mounting device when mounting components from a wafer sheet onto a board. 
     
    
    
     DETAILED DESCRIPTION 
     The component supply device of an embodiment of the technology disclosed in this specification may be arranged adjacent to a mounter which mounts components on a board to supply components to the mounter. This component supply device may have a replenishment section provided with a magazine which houses a component carrying member on which multiple components are arranged on a base material, and a conveyance section which conveys a component carrying member housed in the magazine. The conveyance section may be provided with side surface number one to which a replenishment section is attached, and side surface number two adjacent to which is arranged a mounter. In this case, the replenishment section may be slidably attached to side surface number one of the conveyance section. Note that examples of a component carrying member are a wafer sheet which carries multiple components on the upper surface of a wafer (an example of a base material), and a tray member which is provided with multiple cavities in the upper surface of the tray (an example of a base material) and in which a component (for example, a component with leads and so on) is housed in those multiple cavities, and so on. Note that the tray member may be conveyed being carried on a pallet. 
     With this component supply device, by sliding the replenishment section with respect to side surface number one of the conveyance section, the space for an operator to access the mounter can be widened. 
     With the component supply device of the above embodiment, side surface number one may be positioned in direction number one with respect to the center of the conveyance section. Also, side surface number two may be positioned on the opposite side to direction number one with respect to the center of the conveyance section. And, the replenishment section may be slidable in direction number two within the width of direction number two which is perpendicular to direction number one of the mounter. 
     According to this kind of configuration, the replenishment section, conveyance section, and mounter are arranged in a line in one direction (that is, in the opposite direction to direction number one). Due to this, when conveying a component carrying member from the replenishment section to the mounter using the conveyance section, conveying the component carrying member in only one direction is sufficient. It follows that, a component carrying member can be conveyed efficiently towards a mounter. On the other hand, because the replenishment section, the conveyance section, and mounter are arranged lined up in one direction, the replenishment section gets in the way when trying to access the mounter from the component supply device side. However, by sliding the replenishment section with respect to the conveyance section in direction number two (that is, the direction perpendicular to direction number one), the space for an operator to access the mounter can be widened. Also, because the range in which the replenishment section can be slid fits within the width of the mounter (the width of direction number two), the increase in size of the installation space of the component mounting system (a system configured from the mounter and component supply device) is controlled. 
     Also, with the component supply device of the above embodiment, the replenishment section may be slidable in direction number two within a range in which it is not separated from the conveyance section (that is, within a range in which overlapping sections exists between the side surface of the conveyance section side of the replenishment section and the side surface of the replenishment section side of the conveyance section). According to this kind of configuration, because the replenishment section and the conveyance section are not separated, both can be treated as one body. 
     Also, with the component supply device of the above embodiment, the width of direction number two of the conveyance section may be half or greater than the width of direction number two of the mounter. In this case, the replenishment section may be slidable with respect to the conveyance section in direction number two within the width of direction number two of the mounter. According to this kind of configuration, because the width of direction number two of the conveyance section is relatively large with respect to the mounter, maintaining space to access the mounter is difficult. It follows that, by making the replenishment section slidable with respect to the conveyance section, space to access the mounter can be efficiently maintained. 
     Note that, the mounter to which the component supply device of the above embodiment is adjacent may be provided with a board conveyance section which conveys boards in direction number two. And, along with a mounter number two being able to be arranged at the upstream end of the board conveyance section, a mounter number three may be able to be arranged at the downstream end of the board conveyance section. In this case, movement range for the sliding movement of the replenishment section with respect to side surface number one may be within the region which does not interfere with mounter number two and mounter number three. 
     According to this kind of configuration, in cases in which other mounters are arranged upstream and downstream of the mounter, even if the replenishment section is slid with respect to the conveyance section, the replenishment section can be prevented from interfering with the mounter arranged upstream and downstream. 
     Embodiment 1 
     Component mounting system  10  of the embodiment will be described using the figures. As shown in  FIG. 1 , component mounting system  10  includes a component supply device ( 60 ,  160 ), a mounter  20  arranged adjacent to the component supply device ( 60 ,  160 ), and control device  200  which controls the component supply device ( 60 ,  160 ) and mounter  20 . First, the overall outline configuration of component mounting system  10  is described based on  FIG. 1 . 
     The component supply device ( 60 ,  160 ) includes wafer sheet replenishment section  160  and wafer sheet conveyance section  60 . Wafer sheet W 2  is replenished by an operator to wafer sheet replenishment section  160 . The replenishment of wafer sheet W 2  is performed from side surface  162   b  of the side opposite to the direction in which wafer sheet conveyance section  60  is provided. Wafer sheet conveyance section  60  unloads wafer sheet W 2  replenished by an operator from wafer sheet replenishment section  160 . 
     As shown in  FIG. 17 , wafer sheet W 2  is provided with multiple components W 1  arranged on sheet  192 . Multiple components W 1  are arranged in a specific pattern, that is, in the present embodiment, with a gap between each in the x direction and y direction. It follows that, straight line L 1  which goes through the center (for example, C 1 , C 3 ) of multiple components W 1  distributed in the y direction extends in the y direction; and straight line L 2  which goes through the center (for example, C 1 , C 2 ) of multiple components W 1  distributed in the x direction extends in the x direction. These straight lines L 1  and L 2  are used to calculate the skew of wafer sheet W 2 . 
     Returning to  FIG. 1 , wafer sheet conveyance section  60  is arranged adjacent to side surface  162   a  of the mounter side of wafer sheet replenishment section  160 . As given below, wafer sheet replenishment section  160  is slidably attached with respect to side surface  62   b  of wafer sheet conveyance section  60 . Wafer sheet conveyance section  60  conveys wafer sheet W 2  unloaded from wafer sheet replenishment section  160  to a component supply position near mounter  20  (a position near mounter  20 ). 
     Mounter  20  is arranged adjacent to side surface  62   a  of wafer sheet conveyance section  60  (that is, the side surface on the opposite side to the wafer sheet replenishment section  160  side). Specifically, recess section  26  is provided in the surface on the wafer sheet conveyance section  60  side of mounter  20 , and wafer sheet conveyance section  60  is housed inside this recess section  26 . And, mounter  20  is arranged with respect to wafer sheet conveyance section  60  such that side surface  62   a  of wafer sheet conveyance section  60  contacts the bottom surface of recess section  26  of mounter  20 . Note that, when mounter  20  is arranged with respect to wafer sheet conveyance section  60 , a space is formed at the right side of wafer sheet conveyance section  60 . A loading table (for example, a feeder device table) on which is loaded another component supply device (for example, a feeder) and so on not shown in the figures is installed in this space. Mounter  20  includes board conveyance sections  22   a  and  22   b  which convey boards. An upstream component mounting system is arranged at left side surface  24   a  of mounter  20 . A downstream component mounting system is arranged at right side surface  24   b  of mounter  20 . Boards on which components have been mounted at the upstream component mounting system are supplied to board conveyance sections  22   a  and  22   b . A board supplied to board conveyance sections  22   a  and  22   b  is sent to the center of mounter  20 . Mounting head  30  of mounter  20  picks up component W 1  from wafer sheet W 2  conveyed to a component supply position by wafer sheet conveyance section  60  and mounts picked up component W 1  on a board on board conveyance section  22   a ,  22   b . The board on which component W 1  was mounted, is sent to a downstream component mounting system by board conveyance sections  22   a ,  22   b . By passing the board through multiple component mounting systems, the required components can be attached to the board. Note that, an upstream component mounting system may be arranged at right side surface  24   b  of mounter  20  and a downstream component mounting system may be arranged at left side surface  24   a  of mounter  20 . In this case, boards are conveyed from right side surface  24   b  to left side surface  24   a  of mounter  20 . 
     (Wafer Sheet Replenishment Section  160 ) 
     Next, details are described of each section of component mounting system  10 . First, wafer sheet replenishment section  160  is described. As shown in  FIG. 2 , wafer sheet replenishment section  160  is provided with housing  162 , magazine  170 , and raising/lowering mechanism  168 . 
     Housing  162  houses magazine  170  and raising/lowering mechanism  168 . Unloading hole  174  for unloading wafer sheet W 2  is formed in side surface  162   a  on the wafer sheet conveyance section  60  side of housing  162 . Also, a slide mechanism (described below) for sliding wafer sheet replenishment section  160  with respect to wafer sheet conveyance section  60  is provided between side surface  162   a  of housing  162  and side surface  62   b  of wafer sheet conveyance section  60 . 
     Magazine  170  is provided with multiple wafer sheet housing sections  172  which house wafer sheet W 2 . Multiple wafer sheet housing sections  172  are stacked in the height direction (z direction). Wafer sheet W 2  is housed in each wafer sheet housing section  172 . Magazine  170  is formed such that the x-z cross-section is a rectangular tube. That is, the rear end of magazine  170  (the end on the opposite side to wafer sheet conveyance section  60 ) and the front end of magazine  170  (the end on the wafer sheet conveyance section  60  side) are open. Due to this, an operator can replenish wafer sheet W 2  to wafer sheet housing section  172  from the rear end of magazine  170 . On the other hand, wafer sheet W 2  stored in wafer sheet housing section  172  can be unloaded to wafer sheet conveyance section  60  from the front of magazine  170 . 
     Raising/lowering mechanism  168  includes ball screw  166  and motor  164  which rotates ball screw  166 . A nut (not shown in the figures) which engages with ball screw  166  is fixed to magazine  170 . Due to this, when ball screw  166  is rotated by motor  164 , magazine  170  moves up/down inside housing  162 . By moving magazine  170  up/down, any wafer sheet housing section  172  inside magazine  170  can be aligned with the height of unloading hole  174  of housing  162 . By this, wafer sheet W 2  can be unloaded from wafer sheet housing section  172  to wafer sheet conveyance section  60  through unloading hole  174 . Note that, the conveyance of wafer sheet W 2  from wafer sheet housing section  172  to wafer sheet conveyance section  60  is performed by a robot not shown in the figures. 
     Here, the slide mechanism for sliding wafer sheet replenishment section  160  with respect to wafer sheet conveyance section  60  is described. The slide mechanism includes slide blocks  178  and  186  and so on provided in side surface  162   a  of wafer sheet replenishment section  160 , and engagement grooves  138   a  and  138   b  and so on formed in side surface  62   b  of wafer sheet conveyance section  60 . 
     As shown in  FIG. 3 , number one slide block  178  extending in the x direction, and multiple number two slide blocks  186  arranged at intervals in the z direction with respect to number one slide block  178 , are provided on side surface  162   a  of wafer sheet replenishment section  160  (that is, side surface  162   a  of housing  162 ). 
     Multiple recess sections  178   a  which house guide roller  182 , and multiple recess sections  178   b  which house guide roller  184 , are formed in number one slide block  178 . Guide roller  182  is rotatable about a rotation axis which is parallel to the y axis (an axis perpendicular to the surface of the page). Guide roller  184  is rotatable about a rotation axis which is parallel to the z axis. Number one slide block  178  is fixed to side surface  162   a  of housing  162  via base block  180  (refer to  FIG. 5 ). 
     Multiple number two slide blocks  186  are arranged in the x direction with intervals between each other. The direction in which multiple number two slide blocks  186  are arranged is parallel to the direction in which number one slide block  178  extends. Multiple number two slide blocks  186  are also fixed to side surface  162   a  of housing  162  via a base block not shown in the figures. Recess section  186   a  which houses guide roller  188  is formed in each number two slide block  186 . Guide roller  188  is rotatable about a rotation axis which is parallel to the z axis. Guide roller  190  is arranged between adjacent number two slide blocks  186 . Guide roller  190  is rotatable about a rotation axis which is parallel to the y axis (an axis perpendicular to the surface of the page). 
     Engagement block  176  is arranged at an intermediate position in the height direction of number one slide block  178  and number two slide blocks  186 . Engagement block  176  is fixed to side surface  162   a  of housing  162 . In the center section of engagement block  176 , recess groove  176   a  is formed (refer to  FIG. 6 ). Recess groove  176   a  is recessed from the wafer sheet conveyance section  60  side to the wafer sheet replenishment section  160  side. 
     As shown in  FIG. 4 , number one engagement groove  138   b  in which number one slide block  178  is housed, and number two engagement groove  138   a  in which number two slide blocks  186  are housed, are formed in side surface  62   b  of wafer sheet conveyance section  60 . Number one engagement groove  138   b  and number two engagement groove  138   a  extend in the x direction (i.e. a first direction). As shown in  FIG. 5 , number one engagement groove  138   b  is configured from number one frame member  148  and number two frame member  150  attached to the upper end of number one frame member  148 . Number one slide block  178  and guide rollers  182  and  184  are housed in the space surrounded by number one frame member  148  and number two frame member  150 . Guide roller  182  contacts surface  148   b  which extends in they direction (i.e. a second direction) of number one frame member  148 . Due to this, a force acts in the z direction between guide roller  182  and number one frame member  148 . As given above, guide roller  182  is rotatable about a rotation axis which is parallel to the y axis (i.e. the second direction). Due to this, wafer sheet replenishment section  160  is supported in the z direction by guide roller  182  while being slidable in the x direction (the first direction being perpendicular to the surface of the page) with respect to wafer sheet conveyance section  60 . Guide roller  184 , as well as contacting surface  148   a  which extends in the z direction of number one frame member  148 , contacts protrusion  150   a  of number two frame member  150 . Due to this, a force acts in they direction between guide roller  184  and frame members  148  and  150 . As given above, guide roller  184  is rotatable about a rotation axis which is parallel to the z axis. Due to this, wafer sheet replenishment section  160  is supported in the y direction by guide roller  184  while being slidable in the x direction with respect to wafer sheet conveyance section  60 . Note that in  FIG. 5  guide roller  182  and guide roller  184  are shown, but actually, as in  FIG. 3 , the position in the x direction of guide roller  182  and guide roller  184  is not the same. It should be borne in mind that in  FIG. 5 , for convenience of description, guide roller  182  and guide roller  184  are shown in the same figure. 
     Number two engagement groove  138   a  is configured in the same way as number one engagement groove  138   b . That is, number two slide blocks  186  and guide rollers  188  and  190  are housed inside number two engagement groove  138   a , and guide rollers  188  and  190  contact the inside surface of number two engagement groove  138   a . Wafer sheet replenishment section  160  is supported in the y direction and z direction with respect to wafer sheet conveyance section  60  by guide rollers  188  and  190 . 
     As shown in  FIG. 4 , guidance groove  142  is formed in side surface  62   b  of wafer sheet conveyance section  60 . Guidance groove  142  is positioned between number one engagement groove  138   b  and number two engagement groove  138   a , and extends in the x direction. Lock pin  146  is arranged inside guidance groove  142 . Lock pin  146  is connected to one end of link member  144 . The other end of link member  144  is connected to release button  140 . Lock pin  146  is biased towards the position shown by the solid line in  FIG. 6  by a biasing means (for example, a spring) not shown in the figure. When an operator operates release button  140 , lock pin  146  retracts to the position shown by the dotted line in  FIG. 6 . 
     Engagement block  176  of wafer sheet replenishment section  160  is arranged inside the above guidance groove  142 . The range in which wafer sheet replenishment section  160  is slidable with respect to wafer sheet conveyance section  60  is regulated by the arrangement of engagement block  176  inside guidance groove  142 . By this, the undesirable disconnection of wires which connect apparatuses on the wafer sheet replenishment section  160  side and apparatuses of the wafer sheet conveyance section  60  side can be prevented. 
     Also, lock pin  146  is engagable with recessed groove  176   a  of engagement block  176  arranged inside guidance groove  142 . By lock pin  146  engaging with recessed groove  176   a  of engagement block  176 , wafer sheet replenishment  160  becomes unable to be slid with respect to wafer sheet conveyance section  60 . In the present embodiment, unloading of wafer sheet W 2  from wafer sheet replenishment section  160  to wafer sheet conveyance section  60  is only possible when wafer sheet replenishment section  160  is in a state not slidable with respect to wafer sheet conveyance section  60 . By this, the unloading of wafer sheet W 2  from wafer sheet replenishment section  160  to wafer sheet conveyance section  60  at a wrong position can be prevented. 
     Conversely, when an operator operates release button  140 , lock pin  146  is removed from recessed groove  176   a  of engagement block  176  (lock pin  146  retracts to the position indicated by the dotted line in  FIG. 6 ). By this, wafer sheet replenishment section  160  becomes slidable with respect to wafer sheet conveyance section  60 . If follows that, when wafer sheet replenishment section  160  is to be slid, an operator just needs to operate release button  140  and push wafer sheet replenishment section  160  in the sliding direction. 
     Note that, as in  FIG. 1 , wafer sheet replenishment section  160  is slidable in the x direction (that is, the direction perpendicular to the direction in which wafer sheet W 2  is supplied [y direction]) with respect to wafer sheet conveyance section  60 . And, the range in which wafer sheet replenishment section  160  is slidable in the present embodiment is the range from the position shown by the solid lines to the position shown by the dashed lines in  FIG. 1 , which is inside the x direction width of mounter  20 . Due to this, even if wafer sheet replenishment section  160  is slid, wafer sheet replenishment section  160  does not interfere with an upstream component mounting system, nor does wafer sheet replenishment section  160  interfere with a downstream component mounting system. Also, as is clear from  FIG. 1 , in the position shown by the dashed lines with wafer sheet replenishment section  160  slid to the left, side surface  62   b  of wafer conveyance section  60  is widely open. Due to this, when errors and the like occur with mounter  20 , an operator can operate release button  140  and slide wafer sheet replenishment  160  to maintain sufficient space to access mounter  20 . Because there is no need to provide space in advance to access mounter  20 , component mounting system  10  can be made compact. 
     (Wafer Sheet Conveyance Section  60 ) 
     Next, wafer sheet conveyance section  60  is described. As shown in  FIG. 2 , wafer sheet conveyance section  60  includes moving table  62 , table raising/lowering mechanism  110  which raises/lowers moving table  62 , pickup head  100  which is movable in the xy direction with respect to moving table  62 , and camera  104  for taking an image of wafer sheet W 2  loaded on moving table  62 . 
     As shown in  FIG. 7 , moving table  62  includes base  64 , slider  78  which slides with respect to base  64 , and wafer table  88  which rotates with respect to slider  78 . Base  64  is movable in the up/down direction by table raising/lowering mechanism  110 . That is, as shown in  FIG. 2 , table raising/lowering mechanism  110  includes ball screw  106 , and motor  108  to rotate ball screw  106 . Nut (not shown in the figures) which engages with ball screw  108  is fixed to base  64 . Due to this, when ball screw  106  is rotated by motor  108 , base  64  moves in the up/down direction. By base  64  being moved in the up/down direction, wafer table  88  is also moved in the up/down direction. 
     Slider  78  is supported slidably in the y direction with respect to base  64 . Specifically, guide  72  is provided on the upper surface of base  64 . Guidance section  74  of slider  78  engages with guide  72 . Due to this, slider  78  is supported movable in the y direction with respect to base  64 . The movement of slider  78  is performed by a ball screw mechanism and motor for rotating the ball screw mechanism which are not shown in the figures. 
     As shown in  FIGS. 7 and 8 , wafer table  88  is rotatably supported around a rotation axis (hereafter, θ axis [specifically, the axis extending in the z direction passing through point C shown in  FIG. 9 ]) extending in the z direction on slider  78 . Specifically, R guide  82  is provided on the border of the mounter  20  side of slider  78 . Slider  84  is attached to the underside of wafer table  88  and slider  84  is guided by R guide  82 . Also, cross guides  80   a  and  80   b  are provided on the border of the left and right of slider  78 . Support points  86   a  and  86   b  set on the underside of wafer table  88  are supported by cross guides  80   a  and  80   b  (in detail, by a ball bearing of cross guides  80   a  and  80   b ). It follows that, wafer table  88  is supported on slider  78  at three points: the position at which slider  84  is provided, support point  86   a , and support point  86   b.    
     Here, the three points at which slider  84 , support point  86   a , and support point  86   b  are provided are set such that they are on the circumference of the same circle which includes point C as its center as shown in  FIG. 9 . That is, wafer table  88  is supported by three points on the same circumference with point C at its center (θ axis). Also, the curvature of R guide  82  is set such that slider  84  moves this circumference of the same circle with point C (θ axis) at its center. Due to this, when slider  84  moves in an arc around the θ axis guided by R guide  82 , support points  86   a  and  86   b  also move in an arc around the θ axis guided by cross guides  80   a  and  80   b . As a result, wafer table  88  moved about the θ axis. 
     In the present embodiment, a ball screw mechanism ( 94 ,  85 ) is used to rotate wafer table  88  about the θ axis. That is, as shown in  FIG. 8 , ball screw  94  is rotatably supported at the border of the mounter  20  side of slider  78 . The output axis of motor  92  is fixed to an end of ball screw  94 , and ball screw  94  is rotated by motor  92 . Ball screw  94  extends in the x direction and is engaged with nut member  85 . Nut member  85  and slider  84  are connected such that they move as one in the x direction and can change relative position in the y direction. It follows that, when ball screw  94  is rotated by motor  92 , nut member  85  moves in the x direction following ball screw  94 . Slider  84  moves in the x direction while being guided by R guide  82  according to the x direction movement of nut member  85 . By this, as shown in  FIG. 9 , wafer table  88  rotates about the θ axis. 
     A loading surface on which wafer sheet W 2  is loaded is formed on the above wafer table  88 . As shown in  FIG. 8 , opening  88   a  is formed in the center of the loading surface of wafer table  88 . By opening  88   a  being formed in the center of the loading surface, it is possible to arrange a mechanism which pushes up wafer sheet W 2  on the side under wafer sheet W 2 . By pushing up wafer sheet W 2  from the underside, component W 1  can be easily picked up from wafer sheet W 2 . Note that, an image of wafer sheet W 2  loaded on wafer table  88  can be captured by camera  104  fixed on moving mechanism  102 . 
     Also, as shown in  FIGS. 7 and 8 , clamp attachment sections  89   a  and  89   b  which extend in the y direction are provided on the border of the left and right of wafer table  88 . Wafer clamps  90   a  and  90   b  are attached to clamp attachment sections  89   a  and  89   b . Wafer sheet W 2  is clamped by wafer clamps  90   a  and  90   b  such that wafer sheet W 2  is held on wafer table  88 . 
     Next, pickup head  100  is described. As shown in  FIGS. 11 and 12 , pickup head  100  includes number one housing  111 , rotation axis  116  which is rotatably supported with respect to number one housing  111 , and number two housing  112  which is fixed to rotation axis  116 . Multiple suction nozzles  114   a  and  114   b  are attached to number two housing  112 . The arrangement of multiple suction nozzles  114   a  and  114   b  corresponds to the arrangement of multiple suction nozzles  32  equipped on mounting head  30  of mounter  20 . Because multiple suction nozzles  114   a  and  114   b  are attached to number two housing  112 , when number two housing  112  is rotated together with rotation axis  116 , suction nozzles  114   a  and  114   b  move between a pickup position at which the tip of suction nozzles  114   a  and  114   b  faces down (the state in  FIG. 11 ), and a transfer position at which the tip of suction nozzles  114   a  and  114   b  faces up (the state in  FIG. 12 ). 
     As shown in  FIGS. 13 and 14 , pickup head  100  is provided with a mechanism ( 118 ,  120 , and so on) for switching suction nozzles  114   a  and  114   b  between the pickup position and the transfer position. That is, rack  118  is attached movably in the up/down direction on number one housing  110 . Pinion gear  120  is engaged with rack  118 . Pinion gear  120  is fixed to rotation axis  116 . It follows that, by moving rack  118  up/down, pinion gear  120  and rotation axis  116  rotate, and suction nozzles  114   a  and  114   b  move between the pickup position and the transfer position. 
     The above up/down movement of rack  118  is performed by rotation member  126  being rotated about support axis  128 . That is, cam follower  122  is attached to the upper end of rack  118 . Guidance groove  124  is formed in cam follower  122 . Pin  130  is engaged with guidance groove  124  of cam follower  122  and pin  130  is fixed to an end of rotation member (cam member)  126 . Due to this, when rotation member  126  is rotated about support axis  128  by an actuator which is not shown in the figures (for example, an air cylinder), pin  130  also moves according to the rotation of rotation member  126 . By this, cam follower  122  to which pin  130  is also engaged moves in the up/down direction and rack  118  moves in the up/down direction. 
     As is clear from the above description, the moving speed in the up/down direction of cam follower  122  (that is, rack  118 ) is slow when suction nozzles  114   a  and  114   b  are near the pickup position and the transfer position, and fast when suction nozzles  114   a  and  114   b  are between the pickup position and the transfer position. That is, as shown in  FIG. 15 , when suction nozzles  114   a  and  114   b  are near the pickup position and the transfer position, the up/down direction movement amount S 1  is small with respect to the change in the rotation angle of pin  130 . Conversely, when suction nozzles  114   a  and  114   b  are between the pickup position and the transfer position, up/down direction movement amount S 2  is large with respect to the change in the rotation angle of pin  130 . Due to this, by using the above cam mechanism ( 122 ,  126 ,  130 ), the rotation speed of number two housing  112  when suction nozzles  114   a  and  114   b  are near the pickup position and the transfer position can be made low. By this, the impact when number two housing  112  stops rotating can be reduced. 
     Note that, as shown in  FIG. 16 , intake passage  132  is formed in rotation axis  116  of pickup head  100 . Groove  116   a  is formed on the outer peripheral surface of rotation axis  116  and an end of intake passage  132  is connected to the bottom surface of groove  116   a . Also, the intake passage of suction nozzles  114   a  and  114   b  is connected to groove  116   a  of rotation axis  116 . It follows that, suction nozzles  114   a  and  114   b  are connected to a suction device via groove  116   a  and intake passage  132 . By providing intake passage  132  inside rotation axis  116 , intake piping to suction nozzles  114   a  and  114   b  can be made unnecessary. 
     Also, pickup head  100  and camera  104  are movable in the xy direction with respect to moving table  62  by moving mechanism  102  attached to moving table  62 . By this, component W 1  loaded at any position on wafer sheet W 2  can be picked up by pickup head  100  and an image of component W 1  can be taken by camera  104 . A well-known mechanism (for example, a ball screw mechanism and so on) can be used for moving mechanism  102 . Note that, as is clear from the above description, pickup head  100  and camera  104  are attached to moving table  62  via moving mechanism  102 . Due to this, when moving table  62  is moved in the up/down direction by table raising/lowering mechanism  110 , pickup head  100  and camera  104  also move in the up/down direction correspondingly. 
     (Mounter  20 ) 
     Next, mounter  20  is described. Note that, as conventional well-known items can be used for mounter  20 , here the configuration of mounter  20  is described simply. As is shown in  FIG. 2 , mounter  20  includes board conveyance sections  22   a  and  22   b , mounting head  30 , and component camera  28 . Board conveyance sections  22   a  and  22   b  convey boards which are loaded on a conveyor belt by rotating the conveyor belt. Mounting head  30  is provided with multiple suction nozzles  32  for picking up component W 1 , and mark camera  34  for reading fiducial marks of wafer sheet W 2 . The arrangement of suction nozzles  32  of mounting head  30  corresponds to the arrangement of pickup nozzles  114   a  and  114   b  of pickup head  100 . That is, mounting head  30  can receive multiple components W 1  being held on suction nozzles  114   a  and  114   b  of pickup head  100  at the same time. Note that, mounting head  30  is movable in the xy direction by an x-direction moving mechanism and a y-direction moving mechanism not shown in the figures. Component camera  28  performs reading and so on of components W 1  picked up by mounting head  30 . 
     Next, the operation of the above component mounting system  10  is described with reference to  FIG. 18 . As shown in  FIG. 18 , first, wafer sheet W 2  is conveyed from wafer sheet replenishment section  160  (S 10 ). Specifically, control device  200  drives raising/lowering mechanism  168  and positions one of the wafer sheet housing sections  172  at unloading hole  174 . Also, control device  200  drives moving table  62  and positions wafer table  88  at the wafer sheet loading position (a position near wafer sheet replenishment section  160 ). The wafer sheet loading position is the position to which wafer sheet W 2  is unloaded from unloading hole  174  of wafer sheet replenishment section  160 , and is set near unloading hole  174  of wafer sheet replenishment section  160 . Next, control device  200  drives a robot and loads wafer sheet W 2  housed in wafer housing section  172  onto the loading surface of wafer table  88 . 
     When wafer sheet W 2  has been loaded onto wafer table  88 , control device  200  drives moving table  62  and positions wafer table  88  at the component supply position (a position near mounter  20 ) (S 12 ). The component supply position is set near mounter  20  and is a position at which supply of component W 1  to mounting head  30  from wafer sheet W 2  is performed. 
     Next, control device  200  takes an image of wafer sheet W 2  loading on wafer table  88  by camera  104  (S 14 ). When an image of wafer sheet W 2  has been taken, control device  200  calculates the deviation amount in the θ direction of wafer sheet W 2  from that taken image. That is, replenishment of wafer sheet W 2  to wafer sheet housing section  172  is performed by an operator, and the loading of wafer sheet W 2  from wafer sheet housing section  172  to wafer table  88  is performed by a robot. It follows that, there are cases in which wafer sheet W 2  is not loaded on wafer table  88  at the predetermined set angle. Due to this, an image is taken of wafer sheet W 2  on wafer table  88  by camera  104  and the deviation amount (deviation in the θ direction [angle deviation]) of wafer sheet W 2  is calculated. Note that, the deviation in the θ direction of wafer sheet W 2  can be calculated by the procedure below. That is, the center point C 1  to C 3  of multiple components W 1  can be calculated from an image taken by camera  104  as shown in  FIG. 17 . Then, the θ direction deviation (angle deviation) of wafer sheet W 2  is calculated from the slope of straight line L 2  which connects center point C 1  and center point C 2 , and of straight line L 1  which connects center point C 1  and center point C 3 . 
     When the deviation amount of wafer sheet W 2  has been calculated, control device  200  drives moving table  62  and corrects the position deviation about the θ axis (S 18 ). By this, wafer sheet W 2  is positioned at the predetermined orientation (angle). 
     Next, control device  200  judges whether component W 1  on wafer sheet W 2  is to be picked up directly by mounting head  30  (S 20 ). That is, control device  200  judges whether component W 1  of wafer sheet W 2  is to be supplied face-up or face-down. In cases in which direct pickup is to be performed by mounting head  30  (S 20  is yes), steps S 22  and  24  are skipped and processing proceeds to step S 26 . 
     Conversely, in cases in which direct pickup by mounting head  30  of component W 1  on wafer sheet W 2  is not to be performed (S 20  is no), control device  200  drives pickup head  100  and component W 1  on wafer sheet W 2  is picked up by pickup head  100  (S 22 ). Because pickup head  100  includes multiple suction nozzles  114   a  and  114   b , multiple components W 1  are picked up by pickup head  100 . Continuing, control device  200 , by rotating number two housing  112  moves pickup nozzles  114   a  and  114   b  of pickup head  100  from the pickup position to the transfer position. Also, control device  200  drives table raising/lowering mechanism  110  and lowers moving table  62 . That is, as is clear from  FIGS. 2 and 10 , pickup head  100  is positioned lower than moving table  62  (specifically, wafer table  88 ). For this, moving table  62  is lowered such that the tip of pickup nozzles  114   a  and  114   b  is at the height of reference surface A (shown in  FIG. 10 ). Because moving table  62  and pickup head  100  are connected via moving mechanism  102 , if moving table  62  is lowered, pickup head  100  can also be lowered. Here, reference surface A is at the position (height) of wafer table  88  when component W 1  on wafer sheet W 2  is directly picked up by mounting head  30 . In the present embodiment, because pickup nozzles  114   a  and  114   b  are positioned at reference surface A, the height at which mounting head  30  picks up component W 1  does not change between face-up supply and face-down supply. Due to this, pickup of component W 1  by mounting head  30  can be performed easily. 
     Next, control device  200  picks up component W 1  with mounting head  30  (S 26 ). That is, when component W 1  on wafer sheet W 2  is picked up directly by mounting head  30 , component W 1  is picked up from wafer sheet W 2  on wafer table  88 . Conversely, when component W 1  is picked up by suction nozzles  114   a  and  114   b  of pickup head  100 , component W 1  is picked up from pickup nozzles  114   a  and  114   b  of pickup head  100 . Here, because the arrangement of suction nozzles  114   a  and  114   b  of pickup head  100  and the arrangement of suction nozzles  32  of mounting head  30  correspond, multiple components W 1  can be transferred from pickup head  100  to mounting head  30  at the same time. Note that, it is fine if some of the suction nozzles provided on pickup head  100  and the suction nozzles provided on mounting head  30  correspond such that multiple components W 1  can be transferred at the same time. For example, the suction nozzles of pickup head  100  may be arranged in two rows of two (that is, an arrangement lined up with two in the x direction and two in the y direction), and the suction nozzles of mounting head  30  may be arranged in one row of two, such that two components W 1  are transferred from pickup head  100  to the mounting head  30  at the same time. Alternatively, the suction nozzles of pickup head  100  may be arranged in one row of two, and the suction nozzles of mounting head  30  may be arranged in two rows of two such that two components W 1  are transferred from pickup head  100  to the mounting head  30  at the same time. Further, the suction nozzles of pickup head  100  may be arranged in four rows of two, and the suction nozzles of mounting head  30  may be arranged in two rows of four such that four components W 1  are transferred from pickup head  100  to the mounting head  30  at the same time. 
     When components W 1  are picked up by mounting head  30 , control device  200  drives mounting head  30  and mounts components W 1  picked up by mounting head  30  onto a board on board conveyance section  22   a ,  22   b . By this, components W 1  are mounted onto a board. 
     As described above, in component mounting system  10  of the present embodiment, because wafer replenishment section  160  is slidable with respect to wafer conveyance section  60 , access can be gained to mounter  20  easily. On the other hand, because the range in which wafer replenishment section  160  can be slid is regulated, interference between wafer replenishment section  160  and an adjacent component mounting system can be prevented. As a result, the access area to mounter  20  for operators can be enlarged while controlling the increase in size of component mounting system  10 . 
     Also, with component mounting system  10  of the present embodiment, the angle in the θ direction of wafer sheet W 2  loaded on wafer table  88  can be adjusted to a predetermined angle. As a result, the moving distance of mounting head  30  can be shortened such that productivity can be improved. Also, by using R guide  82  and cross guides  80   a  and  80   b  in the mechanism for rotating wafer table  88  about the θ axis, wafer table  88  can be rotated about the θ axis with a simple mechanism. 
     Also, when supplying component W 1  face-down, multiple components W 1  can be transferred from pickup head  100  to mounting head  30  at the same time. Due to this, the quantity of transfers of components W 1  can be reduced such that productivity can be improved. 
     The above described details of the present embodiment, but these are only an example and in no way restrict the claims of the present application. The technology given in the claims of the present application includes various changes and modifications to the specific examples illustrated above. 
     For example, in the above embodiment, wafer sheet replenishment section  160  was slid with respect to wafer sheet conveyance section  60  from a lock position (a position in which lock pin  146  and engagement block  176  are engaged) in only one direction, but, without being restricted to this example, it is acceptable for wafer sheet replenishment section  160  to be slidable with respect to wafer sheet conveyance section  60  in both the left and right directions from the lock position. 
     Also, for the attachment mechanism for making wafer sheet replenishment section  160  slidable with respect to wafer sheet conveyance section  60 , various mechanisms can be used, without being restricted to the linear guide used in the present embodiment. 
     Further, in the above embodiment, there was a component supply device which conveyed wafer sheets on which components were loaded on the sheet, but the technology disclosed in this specification can also be applied to other component supply devices. For example, the technology disclosed in this specification can also be applied to a component supply device (the device disclosed in Japanese Unexamined Patent Application Publication Number 2011-249704) which conveys a tray member in which multiple cavities are provided in the upper surface of the tray (an example base material) and in which components with leads are housed in those multiple cavities. Note that with this type of device, normally, a tray member is loaded on a pallet and conveyed together with the pallet. 
     The technical elements described in this specification and the figures can exhibit technical utility alone or in various combinations, and are not limited to the combination disclosed in the claims at the time of application. Also, the examples of the technology in this specification and the figures achieves multiple purposes at the same time but can also exhibit technical utility by achieving one among those purposes.