Abstract:
This manufacturing method for wrapped moldings (P) comprises a molding process for manufacturing the moldings (P) and a wrapping process for wrapping the moldings (P). The molding cycle from a mold-clamping step to the next mold-clamping step in the molding process is coordinated with the wrapping cycle from a moving step to the next moving step in the wrapping process by delaying the heating initiation time in the heating step, reducing the rate of temperature increase in the heating step, or prolonging the time for the drawing in the drawing step.

Description:
TECHNICAL FIELD 
       [0001]    The present invention relates to a manufacturing method and a manufacturing apparatus for a packaged molded article. 
       BACKGROUND ART 
       [0002]    Conventionally, chips for inspection tools (pipettes) used in the medical field and the like have been manufactured by injection molding. In some cases, the chips manufactured by injection molding are individually packaged with a film or the like before they are shipped. 
         [0003]    PTL 1 discloses an injection molding machine for manufacturing an injection-molded article. The injection molding machine disclosed in PTL 1 includes an injection device and a mold clamping device. The injection device includes a cylinder for heating pellet as a raw material to obtain melted resin, and a screw for injecting melted resin to a metal mold. In addition, the mold clamping device includes a metal mold and a mold clamping mechanism for holding the metal mold at the time when the melted resin is injected. In this injection molding machine, the melted resin is injected by the cylinder into the metal mold fixed by the mold clamping mechanism with a predetermined pressure. The resin supplied in the metal mold is subjected to pressure holding and cooling for a predetermined time. Finally, the metal mold is opened, and the injection-molded article is taken out. 
         [0004]    In addition, PTL 2 discloses a deep drawing mold packaging machine that packages an object with two films. The deep drawing mold packaging machine disclosed in PTL 2 includes a forming device for forming a recessed pocket in a lower film, a covering means for covering with upper film a pocket in which a packaged object is inserted, a sealing means for sealing the outer periphery portion of the pocket and the upper film, and a cutting means for cutting the sealed two films between the products. In this deep drawing packaging machine, a packaged object is housed in the pocket of the lower film, and the upper film is covered so as to cover the pocket. Next, the outer periphery portion of the pocket and the upper film are sealed, and then the two films thus sealed are cut at a predetermined position. 
         [0005]    Typically, a molding cycle in an injection molding machine such as that disclosed in PTL 1 requires a certain period of time for pressure holding and cooling, and thus requires a period of time longer than the packaging cycle in a deep drawing mold packaging machine such as that disclosed in PTL 2. 
       CITATION LIST 
     Patent Literature 
       [0006]    PTL 1 
         [0007]    Japanese Patent Application Laid-Open No. 2010-111020 
         [0008]    PTL 2 
         [0009]    Japanese Patent Application Laid-Open No. 2010-095305 
       SUMMARY OF INVENTION 
     Technical Problem 
       [0010]    In the medical fields and the like, medical equipment, medicinal products and the like which are guaranteed by inspection that the amount of adhering endotoxin is equal to or lower than a prescribed value and whose hygiene is ensured are used for the purpose of raising patient&#39;s survival rate. In such inspection of endotoxin contamination, inspection tools using chips which are manufactured in a endotoxin-free clean environment, and whose clean and endotoxin-free property is ensured by individual packaging and the like are used. 
         [0011]    For example, in the case where injection-molded articles formed by an injection molding machine such as that disclosed in PTL 1 are successively and individually packaged by a packaging machine such as that disclosed in PTL 2, the time required for the molding cycle is longer than that of the packaging cycle, and therefore the injection-molded articles may be manufactured in advance and temporarily stored. In addition, an injection-molded article taken out from a metal mold may be conveyed to a packaging position by a belt conveyor whose speed is adjusted to the packaging cycle. In such cases, the injection-molded articles may be contaminated while they are temporarily stored, or while they are conveyed by the belt conveyor. 
         [0012]    On the other hand, when the molding cycle of injection-molded articles is shortened to match the molding cycle and the packaging cycle with each other, injection-molded articles cannot be stably manufactured. 
         [0013]    An object of the present invention is to provide a manufacturing method and a manufacturing apparatus which can stably manufacture a packaged molded article in which hygiene of the molded article housed inside is ensured. 
       Solution to Problem 
       [0014]    A manufacturing method for a packaged molded article according to embodiments of the present includes: molding to form a molded article; packaging the molded article; and conveying the molded article from the molding to the packaging, wherein: the molding includes: mold-clamping an opened metal mold after the molded article is taken out from a metal mold, filling the metal mold with resin, pressure-holding the resin in the metal mold, mold-opening the metal mold, and taking out the molded article from the opened metal mold, wherein the packaging includes: heating a bottom film, drawing the heated bottom film to form a pocket, housing the molded article in the pocket, sealing with a top film an opening of the pocket in which the molded article is housed, and moving the bottom film by a predetermined distance; wherein the conveying includes: conveying the molded article taken out from the opened metal mold into the pocket to perform the housing, and wherein: at least the heating, the housing and the sealing are performed after the moving; and a time during which the bottom film is kept stopped between each moving in the packaging is matched with a molding cycle between each mold-clamping in the molding by delaying a heating start time in the heating, by reducing a temperature rising rate in the heating, or by increasing a drawing time in the drawing. 
         [0015]    A manufacturing apparatus for a packaged molded article according to the embodiments of the present invention includes: a molding machine that forms a molded article; a packaging machine that packages the molded article; a conveying machine that conveys the molded article from the molding machine to the packaging machine; and a control section that controls the molding machine, the packaging machine and the conveying machine, wherein: the molding machine performs molding, the molding including: mold-clamping an opened metal mold after a molded article is taken out from the metal mold, filling the metal mold with resin, pressure-holding the resin in the metal mold, and mold-opening the metal mold; the packaging machine performs packaging, the packaging including: heating a bottom film, drawing the heated bottom film to form a pocket, housing the molded article in the pocket, sealing with a top film an opening of the pocket in which the molded article is housed, and moving the bottom film by a predetermined distance; the conveying machine performs taking out the molded article from the metal mold opened by the mold-opening, and conveying the molded article taken out from the opened metal mold into the pocket to perform the housing, the control section controls the molding machine, the packaging machine and the conveying machine; and the control section synchronizes the mold-opening performed by the molding machine in the molding to the taking out performed by the conveying machine with the moving performed by the packaging machine in the packaging in which a stopping time of the bottom film is adjusted to the conveying performed by the conveying machine by delaying a heating start time in the heating, by reducing a temperature rising rate in the heating, or by increasing a drawing time in the drawing. 
       Advantageous Effects of Invention 
       [0016]    According to the present invention, a packaged molded article in which hygiene of the molded article housed inside is ensured can be stably manufactured. 
     
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         [0017]      FIG. 1  is a schematic plan view of a manufacturing apparatus according to Embodiment 1 of the present invention; 
           [0018]      FIG. 2  is a schematic left side view of the manufacturing apparatus according to Embodiment 1 of the present invention; 
           [0019]      FIG. 3  is a schematic right side view of the manufacturing apparatus according to Embodiment 1 of the present invention; 
           [0020]      FIG. 4  is an explanatory diagram of a method for matching a molding cycle and a part of a packaging cycle; 
           [0021]      FIG. 5  is an explanatory diagram of a method for matching the molding cycle and a part of the packaging cycle; 
           [0022]      FIG. 6  is an explanatory diagram of a method for matching the molding cycle and a part of the packaging cycle; 
           [0023]      FIG. 7  is a conceptual view of a method for synchronizing the molding cycle with a part of the packaging cycle; and 
           [0024]      FIG. 8  is a schematic right side view of a manufacturing apparatus according to Embodiment 2 of the present invention. 
       
    
    
     DESCRIPTION OF EMBODIMENTS 
       [0025]    In the following, embodiments of the present invention will be described in detail with reference to the accompanying drawings. 
       Embodiment 1 
     Configuration of Manufacturing Apparatus for Packaged Molded Article 
       [0026]      FIG. 1  is a schematic plan view of manufacturing apparatus  100  for packaged molded article P according to Embodiment 1 (hereinafter referred to also simply as “manufacturing apparatus”). 
         [0027]    As illustrated in  FIG. 1 , manufacturing apparatus  100  includes injection molding machine  120 , packaging machine  140 , conveying machine  160  and control section  180 . In manufacturing apparatus  100 , injection-molded article P produced by injection molding machine  120  is conveyed by conveying machine  160  to packaging machine  140 , and then injection-molded article P is individually packaged by packaging machine  140 . 
         [0028]    Manufacturing apparatus  100  is housed in clean room  190  whose hygiene is maintained. Clean room  190  is provided with air conditioner  191  for ensuring the cleanliness in clean room  190 . Basically, manufacturing apparatus  100  can be unattendedly run except for supply of the material of injection-molded article P, replacement of consumables used for packaging and the like. 
       (Configuration of Molding Machine) 
       [0029]      FIG. 2  is a schematic side view of manufacturing apparatus  100  for manufacturing packaged molded article P according to Embodiment 1 as viewed from injection molding machine  120  side. In  FIG. 2 , packaging machine  140  and control section  180  are omitted. 
         [0030]    Injection molding machine  120  performs a molding process of manufacturing injection-molded article P. Injection molding machine  120  includes injection section  121  and mold clamping section  122 . Injection section  121  and mold clamping section  122  are controlled by control section  180 . 
         [0031]    Injection section  121  fills metal mold  129  of mold clamping section  122  with resin. Injection section  121  includes hopper  123  and cylinder  124 . 
         [0032]    Hopper  123  stores input resin, and introduces the stored resin into cylinder  124 . Hopper  123  includes hopper main body  125 , input port  126 , and communication port  127 . Hopper main body  125  temporarily stores resin. Input port  126  is provided at the upper end of hopper main body  125  and configured for input of resin. Communication port  127  is provided at the lower end of hopper main body  125  and configured to introduce resin into cylinder  124 . The type of resin to be input is not limited, and may be appropriately selected in accordance with the use of injection-molded article P. In addition, while the form of the resin to be input is not limited, a pellet form is preferable from the standpoint of handleability. 
         [0033]    Cylinder  124  injects melted resin obtained by melting resin into metal mold  129 . Nozzle section  128  serving as an injection port of the melted resin is provided at an end of cylinder  124 , and hopper  123  is in communication with cylinder  124  on the bottom end side of cylinder  124 . Cylinder  124  and hopper  123  are configured to be movable forward and backward with respect to mold clamping section  122 . 
         [0034]    Mold clamping section  122  closes metal mold  129  at the time of molding injection-molded article P, and opens metal mold  129  at the time of removing injection-molded article P. Mold clamping section  122  includes metal mold  129  and mold clamping mechanism  130 . 
         [0035]    Metal mold  129  includes first metal mold  129   a  (fixed metal mold) and second metal mold  129   b  (movable metal mold). When first metal mold  129   a  and second metal mold  129   b  are brought into contact with each other, a cavity having a shape corresponding to the shape of injection-molded article P is formed. 
         [0036]    Mold clamping mechanism  130  closes metal mold  129  at the time of molding injection-molded article P, and opens metal mold  129  at the time of removing injection-molded article P. Mold clamping mechanism  130  includes first plate  131  on which first metal mold  129   a  is fixed, second plate  132  on which second metal mold  129   b  is fixed, and a plurality of rails  133  that connect first plate  131  and second plate  132  together. First metal mold  129   a  fixed on first plate  131  is configured to be movable forward and backward with respect to second metal mold  129   b  through rails  133 . 
         [0037]    Injection section  121  melts the resin introduced from hopper  123  in heated cylinder  124  to obtain melted resin. Then, injection section  121  injects the melted resin into metal mold  129 . Meanwhile, mold clamping section  122  fixes first metal mold  129   a  and second metal mold  129   b  in the state where first metal mold  129   a  and second metal mold  129   b  are in contact with each other until melted resin is injected, and, after the melted resin is injected, subjects first metal mold  129   a  and second metal mold  129   b  to pressure holding and cooling for a given period of time to obtain injection-molded article P. Then, mold clamping section  122  opens metal mold  129  and removes injection-molded article P. 
       (Configuration of Packaging Machine) 
       [0038]      FIG. 3  is a schematic side view of manufacturing apparatus  100  for manufacturing packaged injection-molded article P according to Embodiment 1 as viewed from packaging machine  140  side. In  FIG. 3 , injection molding machine  120  and control section  180  are omitted. 
         [0039]    Packaging machine  140  performs a packaging process of packaging injection-molded article P. Packaging machine  140  includes heating section  141 , drawing section  142 , housing section  143 , sealing section  144 , and cutting section  145 . Movement of bottom film BF and top film TF that are used for packaging is controlled by control section  180 . 
         [0040]    Packaging machine  140  successively performs a process in which deep drawing is performed on bottom film BF, which is horizontally and intermittently fed from first rolled web  146 , to form pocket  148 , and, after injection-molded article P is housed in pocket  148 , pocket  148  is sealed with top film TF and cut. Although not illustrated in the drawings, packaging machine  140  is provided with a feeding section that intermittently feeds bottom film BF sent out from first rolled web  146 . Under the control of control section  180 , the feeding section causes movement from first rolled web  146  to heating section  141 , movement from drawing section  142  to housing section  143 , movement from housing section  143  to sealing section  144 , and movement from sealing section  144  to cutting section  145 . It is to be noted that the material of bottom film BF is not limited, and can be appropriately selected in accordance with the function, property, and the like required for the packaging. 
         [0041]    Heating section  141  applies heat to bottom film BF. Heating section  141  includes heat source  147  that is controlled by control section  180 . Heat source  147  is disposed on the upper side of bottom film BF. Heat source  147  heats a region of bottom film BF used as pocket  148  up to a temperature that softens the region and allows for the drawing. Typically, bottom film BF has a multi-layer structure, and the compositions of the layers are different from one another. In such case, at the time of softening bottom film BF, it is preferable to apply heat to the layers at a temperature that is equal to or greater than the glass transition temperature (Tg) of the material of at least one of the layers. 
         [0042]    Drawing section  142  performs a drawing process of forming pocket  148  on heated bottom film BF by drawing. Drawing section  142  includes mold  149  and suction pump  150 . Mold  149  is disposed under bottom film BF on the side opposite to heating section  141 . Mold  149  is formed of, for example, a metal or the like that does not cause deformation when making contact with heated bottom film BF, but the material of mold  149  is not limited. In addition, in the present embodiment, mold  149  is not temperature controlled. That is, in clean room  190 , the temperature of mold  149  has a normal temperature. The shape of mold  149  is appropriately designed in accordance with the shape of pocket  148  to be formed. Mold  149  is connected with suction pump  150 . By vacuum suction of suction pump  150 , drawing is performed on the heated portion of bottom film BF in accordance with the shape of mold  149 , thus forming pocket  148 . 
         [0043]    After pocket  148  is moved to a position where injection-molded article P is housed, housing section  143  houses in pocket  148  injection-molded article P conveyed by conveying machine  160 . 
         [0044]    Sealing section  144  seals the opening of pocket  148  in which injection-molded article P is housed with top film TF. Sealing section  144  includes roller  151  and sealer  152 . Roller  151  is disposed on the upstream side relative to sealer  152  in the feeding direction of bottom film BF. Sealer  152  includes heat sealer  153  and sealing stage  154 . 
         [0045]    Roller  151  is disposed at a position that allows top film TF intermittently fed from second rolled web  155  to cover the opening of pocket  148  of bottom film BF, and roller  151  is configured to change the feeding direction of top film TF to the direction same as the feeding direction of bottom film BF. Top film TF is intermittently fed by the feeding section together with bottom film BF, thus covering the opening immediately after injection-molded article P is housed. In addition, for the purpose of preventing the internal surface (surface facing the interior of pocket  148 ) of top film TF from being contaminated, roller  151  is in contact with the external surface (surface not facing the interior of pocket  148 ) of top film TF. With this configuration, it is possible to prevent foreign matters that naturally drop in clean room  190  from entering pocket  148 , whereby packaged injection-molded article P whose cleanliness is ensured can be acquired. The material of top film TF is not limited, and can be appropriately selected in accordance with the function, property and the like required for the packaging. 
         [0046]    Sealer  152  is disposed under bottom film BF and is vertically movable. Sealer  152  includes sealing stage  154  and heat sealer  153 . Sealing stage  154  has an opening slightly larger than pocket  148 . Heat sealer  153  is disposed above top film TF on the side opposite to sealing stage  154 , and has a shape surrounding the opening of pocket  148 . In sealing section  144 , after intermittently fed bottom film BF and top film TF are moved to a sealing position, sealing stage  154  is lifted such that pocket  148  is inserted into the opening. Then, sealing stage  154  is further lifted to sandwich bottom film BF and top film TF between sealing stage  154  and heat sealer  153 , and the outer periphery of the opening and top film TF are bonded by thermal welding for the sealing. In this manner, injection-molded article P is packaged with bottom film BF and top film TF. 
         [0047]    In cutting section  145 , sealed bottom film BF and top film TF are cut at a predetermined position between each injection-molded article P. Cutting section  145  includes cutter  156  that cuts sealed bottom film BF and top film TF from the upper and lower sides. It is to be noted that the position for cutting top film TF and bottom film BF may be located on the seal as long as the sealing state of pocket  148  and top film TF is maintained. 
       (Conveying Machine) 
       [0048]    Conveying machine  160  conveys injection-molded article P produced by injection molding machine  120  to packaging machine  140 . Conveying machine  160  includes arm  161  that grabs injection-molded article P, and planar movement section  162  that causes arm  161  to move in the XY direction in plan view. Conveying machine  160  grabs injection-molded article P, which has just been produced, with arm  161 , and conveys the injection-molded article P to packaging machine  140 , and then, houses the injection-molded article P in pocket  148  of bottom film BF. At this time, injection-molded article P does not make contact with components other than conveying machine  160 . 
       (Control Section) 
       [0049]    Control section  180  generally controls injection molding machine  120 , packaging machine  140  and conveying machine  160 . For example, control section  180  is composed of a computer. As described later, control section  180  generally controls injection molding machine  120 , packaging machine  140  and conveying machine  160  to match the timings of the molding cycle and the packaging cycle with each other. In addition, control section  180  synchronizes the processes from the mold opening process performed by injection molding machine  120  to the taking out process performed by conveying machine  160 , with the processes from the moving process performed by packaging machine  140  to the conveying process performed by conveying machine  160 . To be more specific, the taking out process performed by conveying machine  160  and the moving process performed by packaging machine  140  (a process of moving pocket  148  that houses injection-molded article P taken out in a given cycle from drawing section  142  to housing section  143 ) are performed in the same period in a given cycle such that the taking out process performed by conveying machine  160  and the conveying process performed by conveying machine  160  do not overlap each other. When these timings do not match each other, conveying machine  160  holding injection-molded article P may be put into a standby state during movement of pocket  148  from drawing section  142  to housing section  143 , and pocket  148  that houses no injection-molded article P may be moved from housing section  143  to sealing section  144 . Control section  180  adjusts the timings so that such problems are not caused. 
       (Operation of Manufacturing Apparatus) 
       [0050]    Next, the operation of manufacturing apparatus  100  for packaged injection-molded article P will be described. 
         [0051]    In injection molding machine  120 , first, metal mold  129  is closed by mold clamping section  122  (mold clamping process). Next, melted resin is supplied into metal mold  129  by injection section  121  (filling process). Then, metal mold  129  filled with the melted resin is subjected to pressure holding and natural cooling (pressure holding process). Further, closed metal mold  129  is opened (mold opening process). Finally, injection-molded article P is taken out from opened metal mold  129  (taking out process). 
         [0052]    In packaging machine  140 , first, bottom film BF is intermittently fed by the feeding section and moved to a heating position (moving process  1 ). Next, heating section  141  applies heat to a region for forming pocket  148  on bottom film BF to soften the region (heating process). Then, the suction pump sucks heated bottom film BF, whereby pocket  148  is formed on heated bottom film BF by drawing (drawing process). Pocket  148  thus formed is moved to a housing position (moving process  2 ). Then, injection-molded article P, which has just been produced by injection molding machine  120 , conveyed by conveying machine  160  is housed in pocket  148  of bottom film BF (housing process). Next, pocket  148  in which injection-molded article P is housed is moved to a sealing position (moving process  3 ). Then, the opening of housing pocket  148  fed to the sealing position in which injection-molded article P is housed is sealed with top film TF (sealing process). Bottom film BF is moved such that the sealing position of bottom film BF and top film TF is on the downstream side relative to cutter  156  in the feeding direction of bottom film BF (moving process  4 ). Finally, cutting section  145  cuts top film TF and bottom film BF, and thus a package is acquired (cutting process). 
         [0053]    As described above, typically, the time required for the molding cycle of injection molding is longer than the time required for the packaging cycle. Accordingly, in the case where packaged injection-molded articles P are successively manufactured, if the molding cycle and the packaging cycle do not match each other, injection-molded article P, bottom film BF and top film TF may be wasted, and the desired manufacturing amount per unit time may not be ensured. In addition, since the time during which injection-molded article P may make contact with particles or the like may be long, injection-molded article P may be contaminated. 
         [0054]    Under such circumstances, matching the molding cycle and the packaging cycle with each other may be a possible solution to successively manufacture packaged injection-molded articles P. However, for example, when packaging machine  140  is kept in a standby state, bottom film BF is kept heated in heating section  141 , and is excessively softened. When bottom film BF is excessively softened in this manner, the shape of mold  149  cannot be correctly transferred to bottom film BE 
         [0055]    To avoid such problems, in manufacturing apparatus  100  according to the present embodiment, a time for a predetermined process in the packaging process is extended to synchronize the molding cycle with a part of the packaging cycle. To be more specific, manufacturing apparatus  100  according to the present embodiment is configured to match a molding cycle from a mold clamping process to the next mold clamping process performed by injection molding machine  120 , and a time from a moving process to the next moving process in the packaging process performed by packaging machine  140  (a time during which bottom film BF is kept stopped at each position (heating section  141 , drawing section  142 , housing section  143 , sealing section  144  or cutting section  145 ) where each process is performed during the period from a moving process to the next moving process in the packaging cycle) by a method ( 1 ) in which the heating start time is delayed in the heating process, by a method ( 2 ) in which the temperature rising rate is reduced in the heating process, or by a method ( 3 ) in which the drawing time is increased in the drawing process. 
         [0056]      FIGS. 4 to 6  are explanatory diagrams of methods of matching the molding cycle and a time from a moving process to the next moving process in the packaging cycle.  FIG. 4  shows a matching method ( 1 ) in which the heating start time is delayed in the heating process.  FIG. 5  shows a matching method ( 2 ) in which the temperature rising rate is reduced.  FIG. 6  shows a matching method ( 3 ) in which the drawing time is increased in the drawing process. As shown in  FIGS. 4 to 6 , it is possible to match molding cycle (T 1 ) and time (T 2 ) from a moving process to the next moving process in the packaging cycle without causing problems in the molding process and the packaging process by the method ( 1 ) in which the heating start time is delayed in the heating process, by the method ( 2 ) in which the temperature rising rate is reduced in the heating process, or by the method ( 3 ) in which the drawing time is increased in the drawing process. 
         [0057]      FIG. 7  is a conceptual view of a method of synchronizing the molding cycle and a part of the packaging cycle. In  FIG. 7 , “a 1 ” represents “moving process  2 ,” “a 2 ” represents the housing process performed by packaging machine  140  and the conveying process performed by conveying machine  160 , and “a 3 ” represents moving process  3 . In addition, “b 1 ” represents the mold opening process performed by molding machine  120  and the taking out process performed by conveying machine  160 . In addition, “n” represents the number of the molding cycles and the packaging cycles. 
         [0058]    As illustrated in  FIG. 7 , in manufacturing apparatus  100  according to the present embodiment, the mold opening process performed by injection molding machine  120  to the taking out process performed by conveying machine  160  (b 1 ), and the moving process performed by packaging machine  140  to the conveying process performed by conveying machine  160  (a 1 ) are partially simultaneously carried out such that the taking out process performed by conveying machine  160  and the conveying process performed by conveying machine  160  do not overlap each other. In this manner, injection-molded article P which has just been produced can be appropriately housed in pocket  148 . 
       (Effect) 
       [0059]    As described above, in manufacturing apparatus  100  and the manufacturing method according to Embodiment 1, the molding cycle and the time from a moving process to the next moving process in the packaging cycle (stopping time at each position on bottom film BF) are matched by increasing the time for the packaging process to synchronize the processes from the mold opening process performed by injection molding machine  120  to the taking out process performed by conveying machine  160 , with the processes from the moving process performed by packaging machine  140  to the conveying process performed by conveying machine  160 , whereby injection-molded article P which has just been produced can be appropriately housed in pocket  148 . Thus, packaged injection-molded article P whose hygiene is ensured can be manufactured. 
         [0060]    In addition, in the case where the molding cycle and a part of the packaging cycle are synchronized by increasing the drawing time in the drawing process, pocket  148  formed by drawing of bottom film BF that tends to shrink when it is cooled is continuously subjected to vacuum suction. Thus, in comparison with the case where pocket  148  is removed from mold  149  immediately after pocket  148  is molded, natural shrinkage is limited by pocket  148 , and the cavity shape of mold  149  can be accurately transferred. Consequently, the quality of the package is enhanced. 
       Embodiment 2 
     Configuration of Manufacturing Apparatus for Packaged Molded Article 
       [0061]      FIG. 8  is a side view of manufacturing apparatus  200  for manufacturing packaged injection-molded article P according to Embodiment 2 as viewed from packaging machine  240  side. In  FIG. 8 , as with  FIG. 3 , injection molding machine  120  and control section  180  are omitted. 
         [0062]    As illustrated in  FIG. 8 , manufacturing apparatus  200  includes injection molding machine  120 , packaging machine  240 , conveying machine  160  and control section  180 . Manufacturing apparatus  200  according to Embodiment 2 is different from of manufacturing apparatus  100  according to Embodiment 1 in the configuration of packaging machine  240 . Therefore, the same components as those of manufacturing apparatus  100  according to Embodiment 1 are denoted by the same reference numerals, and the descriptions thereof are omitted. 
         [0063]    Packaging machine  240  includes heating section  241 , drawing section  142 , housing section  143 , sealing section  144  and cutting section  145 . 
         [0064]    Heating section  241  is disposed under bottom film BF on the upstream side relative to drawing section  142  in the feeding direction of bottom film BF. That is, in Embodiment 2, heating section  241  and drawing section  142  are disposed side by side in the feeding direction of bottom film BE 
       (Operation of Manufacturing Apparatus) 
       [0065]    The operation of manufacturing apparatus  200  for manufacturing packaged injection-molded article P according to Embodiment 2 is identical to manufacturing apparatus  100  of Embodiment 1 except that heated bottom film BF is moved from heating section  141  to drawing section  142  when heated bottom film BF is subjected to drawing. Also in manufacturing apparatus  200  of Embodiment 2, control section  180  adjusts the timings of the molding cycle and the packaging cycle to partially synchronize the processes from the mold opening process performed by injection molding machine  120  to the taking out process performed by conveying machine  160 , with the processes from the moving process performed by packaging machine  240  to the conveying process performed by conveying machine  160 . 
       (Effect) 
       [0066]    With the above-mentioned configuration, in manufacturing apparatus  200  according to Embodiment 2, heating section  241  and drawing section  142  are disposed under bottom film BF, and thus unnecessary devices are not disposed above the portion serving as the internal surface of pocket  148  until injection-molded article P is conveyed thereto. In this manner, cleanliness of the portion serving as the internal surface of pocket  148  is further ensured. 
         [0067]    It is to be noted that, in the manufacturing apparatus according to the embodiments of the present invention, the configurations of the molding machine and the packaging machine are not limited to above-mentioned configurations, and it is possible to adopt a known packaging machine and a known molding machine that can perform the molding process including the mold clamping process, the filling process, the pressure holding process, the mold opening process and the taking out process. 
         [0068]    This application is entitled to and claims the benefit of Japanese Patent Application No. 2013-001958 filed on Jan. 9, 2013, the disclosure of which including the specification, drawings and abstract is incorporated herein by reference in its entirety. 
       INDUSTRIAL APPLICABILITY 
       [0069]    A packaged injection-molded article manufactured in accordance with the present invention is excellent in cleanliness, and therefore can be widely applied to various kinds of injection-molded articles that are required to be endotoxin free and the like, for example. 
       REFERENCE SIGNS LIST 
       [0000]    
       
           100 ,  200  Manufacturing apparatus 
           120  Injection molding machine 
           121  Injection section 
           122  Mold clamping section 
           123  Hopper 
           124  Cylinder 
           125  Hopper main body 
           126  Input port 
           127  Communication port 
           128  Nozzle section 
           129  Metal mold 
           129   a  First metal mold 
           129   b  Second metal mold 
           130  Mold clamping mechanism 
           131  First plate 
           132  Second plate 
           133  Rail 
           140 ,  240  Packaging machine 
           141 ,  241  Heating section 
           142  Drawing section 
           143  Housing section 
           144  Sealing section 
           145  Cutting section 
           146  First rolled web 
           147  Heat source 
           148  Pocket 
           149  Mold 
           150  Suction pump 
           151  Roller 
           152  Sealer 
           153  Heat sealer 
           154  Sealing stage 
           155  Second rolled web 
           156  Cutter 
           160  Conveying machine 
           161  Arm 
           162  Planar movement section 
           180  Control section 
           190  Clean room 
           191  Air conditioner 
         BF Bottom film 
         TF Top film 
         P Injection-molded article