Abstract:
A cutting device of the present invention includes an upper blade, an upper blade fixing plate, a lower blade and a lower blade fixing plate, the upper blade is attached by being bolt-clamped and fixed to the upper blade fixing plate from the outer side and the lower blade is attached by being bolt-clamped and fixed to the lower blade fixing plate from the outer side in a direction opposite to an upper blade attaching direction, thereby to solve problems that cutting of an amorphous sheet material is adversely affected by worn-out upper and lower blades and a time is taken to insert a spacer for adjustment of a clearance between the upper and lower blades.

Description:
CLAIM OF PRIORITY 
       [0001]    The present application claims priority from Japanese Patent Application JP 2011-098566, filed on Apr. 26, 2011, the content of which is hereby incorporated by reference into this application. 
       BACKGROUND 
       [0002]    1. Technical Field 
         [0003]    The preset invention relates to amorphous core manufacturing method and manufacturing apparatus with an amorphous sheet material cutting device. 
         [0004]    2. Description of the Related Art 
         [0005]    In the market of transformers, it has been obliged to manufacture high efficiency transformers with introduction of the Top Runner standard of the Energy Conservation Act. Among them, a demand for amorphous core transformers is now being increased in and outside the country in order to attain remarkable energy conservation and a high efficiency by using an amorphous sheet for a core part on which an electricity conducting coil is wound. Under the above mentioned circumstance, it may be unavoidable to construct an amorphous core manufacturing line which is allowed to cope with delivery of amorphous cores of stable quality by the due date. 
         [0006]    In an amorphous sheet cutting step which is one of steps in an amorphous core manufacturing process, several amorphous sheets are cut in a laminated state. 
         [0007]    The amount of bite (hereinafter, referred to as a clearance) of a cutting blade constituted of upper and lower blades is very important. A too-large clearance may cause a variation in cut length or induce such a situation that laminated amorphous sheets are cut halfway and some sheets are left uncut. On the other hand, a too-small clearance may accelerate progress of wearing of the cutting blade, which may lead to frequent exchange of a worn-out blade with a new one. Therefore, it may be desirable to adjust the clearance amount to an optimum value. 
         [0008]    If a worn-out cutting blade is detached and exchanged with a new one instead of reuse of the worn-out cutting blade for cutting, no time will be taken for adjustment of the clearance amount because the clearance amount is constant. However, since it costs too much to exchange the worn-out cutting blade with a new one each time, upper and lower blades are ground and used again. In addition, since the thickness of a cutting blade is thinned and the clearance amount is changed in accordance with a ground amount of the cutting blade, work of adjusting the clearance amount has been generated so far every time a ground cutting blade is used again. 
         [0009]    Japanese Utility Model Application Laid-Open No. Sho 58(1983)-47425 discloses to provide a scrap cutter with no change of a clearance between blades regardless of grinding of a cutting blade because upper and lower blades are attached as cutting faces. However, it is thought that nothing is disclosed therein with regard to a configuration of the present invention. 
         [0010]    Japanese Patent Application Laid-Open No. Hei9(1997)-201717 describes an amorphous sheet material cutting device used in manufacture of an amorphous core. However, it is thought that nothing is disclosed therein with regard to a method of attaching upper and lower blades considering a clearance between them of the present invention. 
       SUMMARY 
       [0011]    A problem to be solved lies in a clearance between upper and lower blades when used in a step of cutting an amorphous sheet material which is one of steps in an amorphous core manufacturing process as mentioned above. 
         [0012]    One object of the present invention is to provide an attaching method by which an initial clearance between upper and lower blades is maintained even after the upper and lower blades have been ground many times and thinned. 
         [0013]    Another object of the present invention is to provide cutting method and device in which energy conservation is considered as compared to cutting ever performed by a press. 
         [0014]    In order to attain the above mentioned objects, according to one embodiment of the invention, an amorphous core manufacturing apparatus includes a reel on which a plurality of amorphous sheet materials are wound, a sheet separating device that unifies the amorphous sheet materials drawn out from a plurality of reels into one amorphous sheet material and separates the unified amorphous sheet material into respective sheet materials, a cutting device that again unifies the amorphous sheet materials passed through the sheet separating device into one amorphous sheet material and cuts the unified amorphous sheet material into sections of predetermined lengths and a measuring device that laminates the amorphous sheet material sections cut by the cutting device by the number corresponding to one core and measures weight of the laminated sheet material sections, wherein the amorphous sheet material cutting device includes an upper blade, a lower blade, an upper blade fixing plate for fixing the upper blade and a lower blade fixing plate for fixing the lower blade as a cutting blade, the upper blade is attached by being bolt-clamped and fixed to the upper blade fixing plate from the outer side and the lower blade is attached by being bolt-clamped and fixed to the lower blade fixing plate from the outer side in a direction opposite to a direction in which the upper blade is attached. 
         [0015]    In the cutting device of the amorphous core manufacturing apparatus, the upper blade is attached to the upper blade fixing plate in an inclined state. 
         [0016]    According to another embodiment of the present invention, an amorphous core manufacturing method includes a reel on which a plurality of amorphous sheet materials are wound, a sheet separating device that unifies the amorphous sheet materials drawn out from a plurality of reels into one amorphous sheet material and separates the unified amorphous sheet material into respective sheet materials, a cutting device that again unifies the amorphous sheet materials passed through the sheet separating device into one amorphous sheet material and cuts the unified amorphous sheet material into sections of predetermined lengths and a measuring device that laminates the amorphous sheet material sections cut by the cutting device by the number corresponding to one core and measures weight of the laminated sheet material sections, wherein the amorphous sheet material cutting device includes an upper blade, a lower blade, an upper blade fixing plate for fixing the upper blade and a lower blade fixing plate for fixing the lower blade as a cutting blade, the upper blade is attached by being bolt-clamped and fixed to the upper blade fixing plate from the outer side, the lower blade is attached by being bolt-clamped and fixed to the lower blade fixing plate from the outer side in a direction opposite to a direction in which the upper blade is attached and the unified amorphous sheet material is inserted between the upper and lower blades and the upper blade is lowered to cut the unified amorphous sheet material starting from a point where it touches the unified amorphous sheet material. 
         [0017]    According to the present invention, clearance adjustment ever performed when a worn-out cutting blade is ground and reused may be eliminated and hence a total time taken for setting the ground cutting blade and for exchanging a worn-out cutting blade with a new one may be reduced owing to provision of the above mentioned configuration. As a result, a time for which an amorphous core manufacturing line is stopped may be reduced to increase productivity. 
         [0018]    In addition, cutting which has been ever performed by a press is performed by a motor and hence energy may be conserved. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0019]      FIG. 1  is a diagram illustrating a part of an amorphous core manufacturing apparatus with a cutting device according to the present invention; 
           [0020]      FIG. 2A  is a front view illustrating an amorphous sheet material fixing mechanism, a sheet material feeding-out mechanism and a sheet material cutting device according to the present invention; 
           [0021]      FIG. 2B  is a side view illustrating the amorphous sheet material fixing mechanism, the sheet material feeding-out mechanism and the sheet material cutting device according to the present invention; 
           [0022]      FIG. 3  is a front view of the cutting device according to the present invention, illustrating a state that a unified amorphous sheet material is being cut; 
           [0023]      FIG. 4  is a perspective view illustrating an appearance of the cutting device according to the present invention; 
           [0024]      FIG. 5  is a perspective view illustrating a state that a die set has been drawn out when a cutting blade is to be exchanged in the cutting device according to the present invention; 
           [0025]      FIG. 6  is a perspective view illustrating a state that upper and lower blades according to the present invention are respectively attached to upper blade fixing plate and lower blade fixing plate; 
           [0026]      FIG. 7  is a partial perspective view illustrating attachment of upper and lower blades of related art; 
           [0027]      FIG. 8  is a partial perspective view illustrating attachment of upper and lower blades according to the present invention; 
           [0028]      FIG. 9  is a partial sectional diagram illustrating a state that a cutting blade which is thinned by grinding again and again the upper and lower blades according to the present invention is attached; 
           [0029]      FIG. 10A  is a side view of a part in the vicinity of a cutting blade, illustrating a state that a sheet material cutting step of the present invention is not yet performed; 
           [0030]      FIG. 10B  is a side view of the part in the vicinity of the cutting blade, illustrating a state that the sheet material cutting step of the present invention is being performed; and 
           [0031]      FIG. 10C  is a side view of the part in the vicinity of the cutting blade, illustrating a state that the sheet material cutting step of the present invention has been performed. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0032]    Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 
         [0033]      FIG. 1  illustrates devices involving amorphous sheet material cutting and measuring steps which are disposed at the front stage of an amorphous core manufacturing apparatus. 
         [0034]    In  FIG. 1 ,  1  is an uncoiler device having a three-train and one-stage structure that rolled amorphous sheet materials  7  which are respectively set on reels  4 ,  5  and  6  are rotated and drawn out, and a five-ply amorphous sheet material is wound on each reel, the sheet materials  7  wound on these reels are unified into a fifteen (15)-ply sheet material. Here, ten to twenty sheets are preferable as the number of sheets to be piled up. Too few sheets may cause reductions in machining and working efficiencies and too many sheets may cause difficulty in cutting them and may cause increases in size and cost of equipment for the uncoiler device. 
         [0035]    The uncoiler device investigates characteristics of the amorphous sheets wound on the reels and determines arrangement of the reels having different characteristics so as to increase loss characteristics of the entire core. For example, a material which is relatively high in loss characteristics is arranged on an inner side of the core and a material which is relatively low in loss characteristics is arranged on an outer side of the core. 
         [0036]    The 15-ply amorphous sheet material is made to pass through a separating device  8  for separating it into respective sheets. The separating device  8  includes a plurality of vertically arrayed rollers. The piled-up amorphous sheet materials are fed to and nipped between the rollers one by one to be separated from one another. It may become easy to align the amorphous sheet materials with one another when they are to be aligned in a width direction by separating the amorphous sheet materials from one another as mentioned above. Although the separating device  8  is disposed behind the uncoiler device in an example in  FIG. 1 , the position where the separating device  8  is to be disposed is not limited to the above and the separating device  8  may be disposed behind a cutting device. 
         [0037]    The amorphous sheet materials  7  which have passed through the separating device  8  one by one are fed to a cutting device in which, then, the amorphous sheet materials are unified again. 
         [0038]      2  is an integrated cutting device having functions of pressing, feeding out and cutting the unified amorphous sheet material,  10  is a cutting device, and  11  is a control device for controlling rotation of the reels of the uncoiler device  1 , the amount of the unified amorphous sheet material to be fed to the cutting device, the operation of a motor used for cutting the unified amorphous sheet material into sections and a timing at which each amorphous sheet material section so cut is pulled by a clamp cylinder. 
         [0039]    Each sheet material section cut by the cutting device  10  of the integrated cutting device  2  is then sent to a sheet material measuring unit  3 . The sheet material sections of the number corresponding to one core of an amorphous transformer are piled up and the sheet material measuring unit  3  measures weight thereof. 
         [0040]    In the sheet material measuring unit  3 ,  12  and  14  are aligning devices for vertically pushing amorphous sheet materials which may not be aligned with one another against them from both sides to align the materials with one another when cut and the aligning devices are disposed at three positions. 
         [0041]      13  is a clamp cylinder configured to operate interlocking with a support which moves on a rail which is longitudinally disposed behind a place where the sheet materials are arranged. The support which moves and operates on the rail is driven by a linear motor or the like. 
         [0042]    In the sheet material measuring unit  3 , when a section cut out of the amorphous sheet material  7  is to be put on a sheet material laminate  50  by pulling it by the clamp cylinder  13 , a table is lowered to put the section cut out of the amorphous sheet material  7  on the sheet material laminate  50 . 
         [0043]      FIG. 2A  and  FIG. 2B  illustrate the cutting device  10 .  FIG. 2A  is a front view of the cutting device and  FIG. 2B  is a side view thereof. 
         [0044]    In  FIG. 2A  and  FIG. 2B , the cutting device  10  has a mechanism that an upper blade of a cutting blade is obliquely disposed, a lower blade thereof is horizontally disposed and fixed, a rotational motion is converted to a linear motion to vertically drive the upper blade from the both sides by one motor. 
         [0045]      36  is a fixing plate to which a drive system such as a motor is disposed and fixed,  15  is a servo motor fixed to the fixing plate  36 ,  17  is a belt,  16  is a pulley around which the belt  17  is put to transmit rotational driving of the motor  15 , and  18  is a pulley disposed in opposition to the pulley  16 . These two pulleys  16  and  18  are coupled by a shaft  19  to rotate in cooperation with each other. 
         [0046]      20  and  21  are eccentric cams that eccentrically rotate a rotor. 
         [0047]    When the eccentric cams  20  and  21  rotate, coupling rods  22  and  23  are vertically driven simultaneously. The eccentric cams  20  and  21  on the both sides are disposed in the same manner so as to vertically drive the coupling rods  22  and  23  in the same manner. Coupling rings  24  and  25  are respectively connected to the coupling rods  22  and  23 . An upper blade  30  is fixed to an upper blade fixing plate  31  and the upper blade fixing plate  31  is fixed to a movable base  41  which is made movable. The coupling rings  24  and  25  are engaged with protruded shafts  60  and  61  protruding from central parts of right and left ends of the movable base  41 . Owing to the above mentioned configuration, when the coupling rods  22  and  23  vertically move, the movable base  41  vertically moves to vertically drive the upper blade fixing plate  31  and the upper blade  30 . 
         [0048]    Here, the upper blade  30  is obliquely disposed and fixed such that its left side is lowered as illustrated in  FIG. 2A . The upper blade  30  may be inclined in an opposite direction and the same effect as the above may be obtained. 
         [0049]    A lower blade  32  is horizontally disposed below the upper blade  30  and is fixed to a lower blade fixing plate  33 . Then, the above mentioned rotational drive system and the cutting blade are disposed on a base  28 . 
         [0050]    Owing to a configuration of the cutting blade as described above, the unified amorphous sheet material  7  is cut into sections starting from a position where the upper blade  30  touches it and cutting is completed when the upper  30  has entirely reached the lower blade  32 . That is, this cutting method is the same as cutting with scissors in principle. The material is cut from one side by this cutting method unlike cutting performed by exerting a high pressure on the entire blade by a press or the like and hence cutting energy may be reduced and energy may be conserved. 
         [0051]    In  FIG. 2B ,  26  is s pressing mechanism part for pressing the unified amorphous sheet material  7 . The pressing mechanism part  26  is configured to be moved from the side of the uncoiler device to the side of the cutting device by a sheet material feed-out mechanism part  27 .  FIG. 2B  illustrates a state that the sheet material pressing mechanism part has been moved from a position where the sheet material pressing mechanism part is designated by  26 ′ to a position where the sheet material pressing mechanism part is designated by  26  on the side of the cutting device by the sheet material feed-out mechanism part  27 . 
         [0052]    In an example, the pressing mechanism part  26  for pressing the unified amorphous sheet material, the sheet material feed-out mechanism part  27  and the sheet material cutting device are integrated to form the cutting device  10 . 
         [0053]    Next,  FIG. 3  illustrates a state that the sheet material  7  is being cut. 
         [0054]      FIG. 3  is a diagram illustrating a state that the upper blade  30  is partially superposed on the lower blade  32  and is cutting the unified amorphous sheet material  7 . 
         [0055]    Since the upper blade  30  is obliquely disposed and fixed as described above, the unified amorphous sheet material  7  is cut starting from a point where the upper blade  30  touches the unified sheet material  7 , that is, from one side and cutting is completed when the upper blade  30  has been entirely superposed on the lower blade  32 . Then, the upper blade  30  is pulled upward. 
         [0056]    Next, exchange of a cutting blade will be described with reference to perspective views illustrating an appearance of the cutting device  10  in  FIG. 4  and  FIG. 5 . 
         [0057]    In  FIG. 4 , the cutting device  10  is disposed on the base  28 , and the amorphous sheet material  7  is conveyed on a roller  9  disposed on an upper end part of the base  28  and is horizontally fed to the cutting device. A rotational system including the motor  15 , the rotating pulley  16  and the eccentric cam  21  is fixed to a fixing plate  36 . A die set  34  is disposed under the fixing plate  36  and the cutting blade including the upper blade  30 , the upper blade fixing plate  31 , the lower blade  32  and the lower blade fixing plate  33  is disposed in the die set  34 . In  FIG. 4 , the coupling rings  24  and  25  are respectively connected to the coupling rods  22  and  23 , the coupling rings  24  and  25  respectively are engaged with the protruded shafts  60  and  61  such that the protruded shaft  61  vertically moves in a linear hole  51 . A notch is made in the unified sheet material  7  below the upper blade  30  in  FIG. 4  for ready understanding of a state that cutting is being performed by lifting upward the upper blade  30 . 
         [0058]      FIG. 5  illustrates a state that the cutting blade for cutting the unified sheet material  7  is about to be exchanged with a new one. In exchanging the cutting blade, the fixing plate  36  on which the rotational system disposed on the die set  34  is fixed is isolated from the die set  34 , a roller conveyer  29  is assembled to be horizontally disposed above the base  28 , the die set  34  containing the cutting blade is made to slide on the roller conveyer  29  so as to attain an easy-to-work state. In isolating the die set  34  from the fixing plate  36 , the coupling rings  24  and  25  attached to the leading ends of the coupling rods  22  and  23  are disengaged from the protruded shafts  60  and  61 . 
         [0059]    The die set  34  is configured to be also isolated from the sheet material pressing mechanism part  26  and the sheet material feed-out mechanism part  27 . 
         [0060]    The die set  34  is pulled out, a case that covers the entire die set  34  is removed from the die set  34  and the bolts are unclamped from the upper and lower blades of the cutting blade to exchange the cutting blade with a new one. 
         [0061]    After cutting blade exchange has been completed, the cutting blade is covered with the case of the die set. After covering of the cutting blade has been completed, the cutting blade is set by returning it to a part below the fixing plate  35  of the motor, detaching the roller conveyer  29  from the base  28  and fitting the coupling rings  24  and  25  disposed on the leading ends of the coupling rods  22  and  23  on the protruded shafts  60  and  61 . 
         [0062]    Although the unified sheet material  7  is illustrated in  FIG. 5 , the die set  34  is isolated from the fixing plate  36  and is returned to its original position in a state that the unified sheet material  7  is removed. 
         [0063]    Next, the cutting blade will be described with reference to  FIG. 6  to  FIG. 9 . 
         [0064]      FIG. 6  is a partial perspective view illustrating a partial appearance of the cutting blade. 
         [0065]    In  FIG. 6 , the unified sheet material  7  is made to pass between the upper blade  30  and the lower blade  31 . The unified sheet material  7  is pulled in a state that it is nipped by the clamp cylinder  13 , is stopped when a designated cut length is attained and is cut into a section of the designated cut length. 
         [0066]    The sheet materials  7  are supplied from the three-train and one-stage uncoiler device. Since the number of sheet materials wound on each reel is five, the number of sheet materials to be cut is fifteen in total. 
         [0067]    The upper blade  30  is obliquely disposed and fixed to the upper blade fixing plate  31  with a bolt  44  from the outer side. 
         [0068]    The lower blade  32  is horizontally fixed to the lower blade fixing plate  33  with a bolt  45 . The lower blade fixing plate  33  has an inverted square-C-shaped part. The lower blade  32  is fixed to the inside of the inverted square-C-shaped part in a direction opposite to a fixing direction of the upper blade  30  from the outer side. Then, the lower blade fixing plate  33  is fixed to a fixing base  42 . 
         [0069]    Even though the total number of amorphous sheet materials which are unified is fifteen, the upper blade  30  and the lower blade  32  may be worn out when cutting is repeatedly performed. A worn-out blade is detached from the fixing plate, is ground and is again attached to the fixing plate to be used. The thickness of the cutting blade itself is gradually thinned as the cutting blade is repeatedly ground and used. Therefore, a problem of clearance may occur when a thinned cutting blade is attached. 
         [0070]    In  FIG. 6 , since the upper and lower blades included in the cutting blade are made of cemented carbide and are rectangular parallelepipeds, parts used as blades are four long sides of each rectangular parallelepiped. Thus, the manufacturing cost may be more reduced by using up the four sides of each blade and then grinding each blade to be used before each blade is detached from each fixing plate and is ground to be used. 
         [0071]      FIG. 7  illustrates a cutting blade attaching method of related art. 
         [0072]    In  FIG. 7 ,  30 ′ is an upper blade and  31 ′ is an upper blade fixing plate, the upper blade  30 ′ is fixed to the upper blade fixing plate  31 ′ with a bolt  44 ′ from the inner side,  32 ′ is a lower blade and  33 ′ is a lower blade fixing plate, the lower blade  32 ′ is fixed to the lower blade fixing plate  32 ′ with a bolt  45 ′ from the inner side. That is, the upper blade  30 ′ and the lower blade  32 ′ are respectively fixed to the fixing plates  31 ′ and  33 ′ from the inner sides. 
         [0073]      43 ′ is an adjusting screw for adjusting a vertical position of the lower blade  32 ′. 
         [0074]    In the cutting blade attaching method of related art illustrated in  FIG. 7 , there is a tendency that a clearance between the upper and lower blades is gradually increased after disposed as the upper blade and lower blades are ground again and again and the thinned upper and lower blades are used. Thus, sharpness in cutting sheet materials is gradually reduced. 
         [0075]      FIG. 8  illustrates a cutting blade attaching method of the present invention. 
         [0076]    A notch into which the upper blade  30  fits is formed in the upper blade fixing plate  30  and the upper blade  30  is brought into abutment against the notch and fixed to the fixing plate  31  with the bolt  44  from the outer side. The lower blade  32  is fixed to the lower blade fixing plate  33  with the bolt  45  from the outer side in a direction opposite to a direction in which the upper blade  30  is attached. The lower blade fixing plate  33  has an inverted square-C-shaped part and is fixed to the fixing base  42  in a state that the lower blade  32  is fixed into the inverted square-C-shaped part. A clearance G between the upper and lower blades may be set to a predetermined value optimum for cutting by the method of attaching the upper blade  30  and the lower blade  32  of the present invention. 
         [0077]    Next, an attaching method performed when the upper blade  30  and the lower blade  32  included in the cutting blade are ground and thinned will be described with reference to  FIG. 9 . 
         [0078]      FIG. 9  illustrates a configuration which is the same as that in  FIG. 8  except that attachment performed when the thicknesses of the upper blade  30  and the lower blade  32  have been reduced is illustrated. The upper blade  30  is fixed into the notch in the upper blade fixing plate  31  with the bolt  44  from the outer side with the blade directed downward as in the case in  FIG. 8 . The lower blade  32  is fixed into the inverted square-C-shaped part with the bolt  45  in the direction opposite to the attaching direction of the upper blade with the blade directed upward. 
         [0079]    Since the upper blade  30  and the lower blade  32  are ground again and again, these blades are thinner than original blades obtained before ground. When the upper blade  30  and the lower blade  32  which are reduced in thickness are attached and fixed, the clearance G between the upper blade  30  and the lower blade  32  may become the same as that illustrated in  FIG. 8 , that is, may have a configuration which is the same as that obtained before ground. That is, such an effect may be obtained that the clearance is not changed regardless of use of the ground upper and lower blades  30  and  32 . 
         [0080]      FIG. 10A ,  FIG. 10B  and  FIG. 10C  are diagrams of a part in the vicinity of a cutting blade, illustrating a process along which the unified amorphous sheet material  7  is gradually cut by the cutting blade.  FIG. 10A  illustrates a state that the unified amorphous sheet material is not yet cut,  FIG. 10B  illustrates a state that the unified amorphous sheet material is being cut, and  FIG. 10C  illustrates a state that cutting is completed. 
         [0081]    In  FIG. 10A , the upper blade  30  is fixed into the notch in the upper blade fixing plate  31  with the bolt  44  from the outer side. The upper blade fixing plate  31  is fixed to the movable base  41 . A pressing plate  55  for pressing the unified amorphous sheet material  7  via a shaft  57  is disposed below the movable base  41 . A compression spring is disposed around the shaft  57 . 
         [0082]    The lower blade  32  is fixed to the lower blade fixing plate  33  with the bolt  45  from the outer side in a direction opposite to a fixing direction of the upper blade  30 . The lower blade fixing plate  33  is fixed to the fixing base  44  and a sheet material receiving plate  56  is disposed on the fixing base  42  at a position in opposition to the pressing plate  55  of the movable base  41 . 
         [0083]    An adjusting screw  43  is allowed to adjust the lower blade  32  to be moved vertically. 
         [0084]    In the cutting device so configured, when a predetermined cut length is determined, the clamp cylinder  13  stops pulling the unified amorphous sheet material. Then, the servo motor  15  rotates, a rotational motion of the motor is converted to a vertically working linear motion by an eccentric cam, and the movable base  41  drives the unified amorphous sheet materials  7  in a pressing direction to nip the unified amorphous sheet material between the sheet material pressing plate  55  and the sheet material receiving plate  56  to fix it. 
         [0085]      FIG. 10B  is a diagram illustrating a state that the upper blade  30  is lowered and is cutting the unified amorphous sheet material  7  which is fixed by being nipped between the sheet material pressing plate  55  and the sheet material receiving plate  56 . Since the upper blade  30  is attached in an inclined state, the upper blade  30  is totally lowered toward the lower blade  32  to complete cutting of the unified amorphous sheet material  7 . 
         [0086]      FIG. 10C  illustrates a state that cutting of the unified amorphous sheet material  7  is completed, the movable base  47  moves upward, the upper blade  30  and the sheet material pressing plate  55  move upward simultaneously, and the unified amorphous sheet material  7  has been released from a fixed state. The unified amorphous sheet material which has been cut into a section of a predetermined length in this state is nip-held by the clam cylinder  13  and is pulled to the sheet material measuring device to be laminated on the sheet material laminate  50  in  FIG. 1 .