JP2020025962A - Molded body manufacturing method and manufacturing device - Google Patents

Abstract

To provide a molded body manufacturing method and a molded body manufacturing device by which a work-piece can be punched more easily.SOLUTION: A molded body manufacturing method includes: a step at which a work-piece and a cushioning material having flexibility higher than that of the work-piece are overlapped; a step at which a punching metal mold is so located as to face the work-piece; a step at which a back member is so located as to face the cushioning material; and a step at which the work-piece and the cushioning material are pinched by the punching metal mold and the back member and the punching metal mold is so made as to be inset into the cushioning material, whereby the work-piece is punched into a shape corresponding to the punching metal mold.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to a method for manufacturing a molded article and an apparatus for producing a molded article.

  Patent Literature 1 discloses a method in which a metal material, which is a band-shaped metal plate (worked plate) wound in a coil shape, is intermittently fed from an uncoiler, and the metal plate is punched into a predetermined shape using a punch and a die. And a method of manufacturing a laminated iron core including forming a punched member and stacking a plurality of punched members to obtain a laminated iron core.

JP 2003-200296 A

  The present disclosure describes a method for manufacturing a molded body and a manufacturing apparatus for a molded body that can more easily punch a material to be processed.

  A method of manufacturing a molded body according to one aspect of the present disclosure includes a method of stacking a work material and a cushion material having higher flexibility than the work material, and punching metal so as to face the work material. Placing the mold, arranging the back member so as to face the cushion material, pressing the work material and the cushion material between the punching die and the back member, and converting the punching die to the cushion material The method includes punching a workpiece into a shape corresponding to a punching die by being sunk.

  An apparatus for manufacturing a molded body according to another aspect of the present disclosure includes a punching die disposed to face a workpiece, a back member disposed to face a cushion material, and a punching die. And a driving mechanism configured to drive at least one of the back member and the back member to move the punching die and the back member toward and away from each other, and a control unit. The control unit presses the work material and the cushion material between the punching die and the back member in a state where the work material and the cushion material are overlapped, and allows the punching die to be embedded in the cushion material. Thus, a process for controlling the drive mechanism is performed so as to punch the workpiece into a shape corresponding to the punching die.

  ADVANTAGE OF THE INVENTION According to the manufacturing method and the manufacturing apparatus of a molded object which concern on this indication, it becomes possible to punch out a to-be-processed material more easily.

FIG. 1 is a sectional view showing an example of a punching device. FIG. 2A is a perspective view showing an example of a punching die and a back member, and FIG. 2B is a top view showing an example of a punching die and a back member. FIG. 3 is a cross-sectional view for explaining a step of manufacturing a punched member using the punching device of FIG. FIG. 4 is a cross-sectional view for explaining a step of manufacturing a punched member using the punching device of FIG. FIG. 5 is a sectional view showing another example of the punching device. FIG. 6 is a cross-sectional view for explaining a step of manufacturing a punched member using the punching device of FIG. FIG. 7 is a sectional view showing another example of the punching device. FIG. 8 is a cross-sectional view for explaining a step of manufacturing a punched member using the punching device of FIG. FIG. 9 is a perspective view showing another example of the punching device. FIG. 10 is a perspective view showing another example of the punching device. FIG. 11 is a perspective view showing another example of the punching device. FIG. 12 is a perspective view showing another example of the punching device.

  Hereinafter, an example of an embodiment according to the present disclosure will be described in more detail with reference to the drawings. In the following description, the same elements or elements having the same functions will be denoted by the same reference symbols, without redundant description.

[Configuration of punching device]
First, the configuration of the punching device 10 will be described with reference to FIGS. As shown in FIG. 1, the punching device 10 punches the workpiece 1 superposed on the cushioning material 2 into a predetermined shape to form a punching member W (formed body) (see FIG. 4). It is configured as follows.

  Examples of the workpiece 1 include a metal plate, a ceramic plate, and a green sheet. The metal plate may be, for example, an alloy plate such as an electromagnetic steel plate, an amorphous metal plate, a cobalt-nickel alloy plate, a copper alloy, a 42 alloy, or a carbon steel plate. The ceramic plate may be, for example, a glass plate, a fine ceramic plate, or the like. Examples of the fine ceramic material include barium titanate, zirconia, alumina, and ferrite. The thickness of the workpiece 1 is not particularly limited, but may be, for example, 5 mm or less, 1 mm or less, 0.5 mm or less, or 0.3 mm or less. The thickness may be 0.1 mm or less, 50 μm or less, 10 μm or less, or 3 μm or less. The workpiece 1 may be configured by laminating a plurality of plate-like bodies made of the above materials.

  The cushion material 2 has a higher flexibility than the work material 1 so that the punching member W punched from the work material 1 can sink into the cushion material 2. The term “high in flexibility” may be defined as having a relatively small elastic modulus or dynamic elastic modulus, and hardness (for example, Vickers hardness, Rockwell hardness, etc.) It may be defined to mean small. The cushion material 2 may be, for example, paper, resin film, sponge, rubber, or metal (for example, lead, tin, gold, or the like). The thickness of the cushion material 2 may be smaller than the thickness of the workpiece 1, may be approximately the same as the thickness of the workpiece 1, or may be greater than the thickness of the workpiece 1. . The cushion material 2 may have, for example, a thickness of 0.3 times or more of the workpiece 1, may have a thickness of 1 time or more of the workpiece 1, It may have a thickness of at least twice the work material 1, may have a thickness of at least four times the work material 1, or may have a thickness of at least six times the work material 1. May be provided. The cushion material 2 may be configured by laminating a plurality of plate-like bodies made of the above materials.

  The punching device 10 includes a back member 11, a punching die 12, a support plate 13, a driving mechanism 14, a stripper 15, and a controller Ctr (control unit).

  The back member 11 is arranged so as to face the cushion material 2. In the example of FIG. 1, the back member 11 is located below the cushion member 2, and is configured to support the cushion member 2 and the workpiece 1. The back member 11 includes an opening 11a formed on the surface (the upper surface in FIG. 1) on the side facing the cushion material 2.

  The opening 11a may be a depression (recess) as shown in FIG. 1 or a through-hole penetrating the back member 11. As shown in FIG. 2, the opening 11 a has a shape along the outer shape of the punching die 12 and is smaller than the outer shape of the punching die 12. That is, when viewed from above, the periphery of the opening 11a extends along the contour slightly inside the contour of the punching die 12 (see FIG. 2B).

  The punching die 12 is arranged so as to face the workpiece 1. In the example of FIG. 1, the punching die 12 is located above the workpiece 1. The punching die 12 is positioned so as to overlap with the back member 11 when viewed from above. Therefore, the punching die 12 is configured so that the workpiece 1 and the cushion material 2 can be pressed between the punching die 12 and the back surface member 11. In the example of FIG. 1, the punching die 12 functions as a punch. That is, the punching die 12 is configured to punch the workpiece 1 into a shape along the outer shape.

  The support plate 13 supports the base end of the punching die 12. The support plate 13 includes a plurality of through holes (not shown). The plurality of through holes may be arranged, for example, at each corner of the support plate 13. The guide shaft 16 is inserted through each of the plurality of through holes.

  The drive mechanism 14 is connected to the support plate 13. The drive mechanism 14 operates based on an instruction from the controller Ctr, and is configured to integrally move the punching die 12 and the support plate 13 up and down. The drive mechanism 14 may be, for example, a press (a mechanical press, a hydraulic press, or the like) or an actuator.

  The stripper 15 is arranged so as to face the workpiece 1. In the example of FIG. 1, the stripper 15 is located above the workpiece 1. The stripper 15 has a function of clamping the workpiece 1 between the punching die 12 and the back member 11 around the punching die 12 when punching the workpiece 1 with the punching die 12. Stripper 15 includes a through hole 15a located at the center. The punching die 12 is inserted into the through hole 15a. That is, during the operation of the drive mechanism 14, the punching die 12 moves up and down through the through hole 15a.

  A plurality of guide shafts 16 are attached to the stripper 15. A plurality of elastic bodies 17 are arranged between the stripper 15 and the support plate 13. The elastic body 17 is configured to apply an elastic force to the stripper 15 in a direction to separate the stripper 15 from the support plate 13. The elastic body 17 may be, for example, a compression coil spring having a cylindrical shape or a gas spring. The compression coil spring may be inserted through the guide shaft 16 as illustrated in FIG.

  The controller Ctr generates an instruction signal for operating the drive mechanism 14 based on, for example, a program recorded on a recording medium (not shown) or an operation input from an operator, and issues the instruction to the drive mechanism 14. It is configured to transmit a signal.

[Manufacturing method of punched member]
Subsequently, a method of manufacturing the punched member W from the workpiece 1 using the punching device 10 will be described with reference to FIGS. 1, 3 and 4.

  First, as shown in FIG. 1, the cushion material 2 in a state in which the workpiece 1 is overlapped is placed on the back member 11. Thereby, the back member 11 directly faces the cushion material 2. Next, the punching die 12 is arranged above the workpiece 1 together with the drive mechanism 14, the stripper 15, and the like. Thereby, the punching die 12 directly faces the workpiece 1.

  Subsequently, the controller Ctr instructs the drive mechanism 14 to lower the punching die 12 toward the workpiece 1. At this time, as shown in FIG. 3, the stripper 15 descends together with the punching die 12 and comes into contact with the workpiece 1 around the punching die 12.

  When the instruction from the controller Ctr to the drive mechanism 14 is further continued, the punching die 12 is further lowered by the drive mechanism 14 as shown in FIG. Presence makes it no longer descend.

  At this time, since the elastic body 17 between the support plate 13 and the stripper 15 is compressed, an elastic force proportional to the amount of compression acts on the workpiece 1 and the cushion material 2 via the stripper 15. That is, the workpiece 1 and the cushion material 2 are sandwiched between the stripper 15 and the back member 11. On the other hand, the punching die 12 is lowered until the workpiece 1 and the cushioning material 2 are pressed into the cushioning material 2 while pressing the workpiece 1 and the cushioning material 2 between the backing member 11. The workpiece 1 is punched into a shape along the outer shape of No. 12. At this time, a part of the cushion material 2 is pushed out into the opening 11a.

  As described above, the punching member W is formed. Thereafter, for example, when the workpiece 1 is a metal material such as an electromagnetic steel plate or an amorphous metal plate, a laminated core (rotor or stator) can be obtained by laminating a plurality of punched members W. it can.

[Action]
In the embodiment described above, the workpiece 1 is sandwiched between the backing member 11 and the punching die 12 together with the cushioning material 2, and the punching die 12 is sunk into the cushioning material 2. The workpiece 1 is punched into a shape corresponding to the mold 12. Therefore, unlike the conventional method of punching the workpiece 1, there is no need to position the die and the punch. Therefore, the workpiece 1 can be more easily punched. Further, since it is not necessary to align the die hole with the punch, it is not necessary to provide a pilot hole or the like for transporting the workpiece 1 in the workpiece 1. Therefore, the degree of freedom in the layout of the punching of the workpiece 1 is increased, and the yield can be improved.

  By the way, in the conventional method, it is necessary to set a gap (clearance) between the die and the punch to about 10% of the thickness of the workpiece 1. That is, when the thin workpiece 1 is punched, the clearance decreases in proportion to the thinning of the workpiece 1. Therefore, the die and the punch must be very precisely aligned. Therefore, if it is attempted to punch a thin workpiece 1 using a punch and a die as in the related art, the manufacturing cost may increase. However, in the above embodiment, since the alignment between the die and the punch is not required, the manufacturing cost of the punching member W can be significantly reduced.

  In the above embodiment, when the workpiece 1 is pressed by the punching die 12, the stripper 15 suppresses the warpage of the workpiece 1 near the punching die 12. Therefore, the pressing force of the punching die 12 is more appropriately transmitted to the workpiece 1. Therefore, it becomes possible to manufacture a punching member W having a shape corresponding to the punching die 12 with higher accuracy.

  In the above embodiment, the periphery of the opening 11a provided in the back member 11 extends slightly inside the contour of the punching die 12 and along the contour. Therefore, the stress applied to the portion of the workpiece 1 that contacts the central portion of the punching die 12 is reduced by the presence of the opening 11a, while the peripheral edge of the punching die 12 of the workpiece 1 is reduced. A large stress acts on a portion that comes into contact with the rear member 11 due to the presence of the back member 11. Therefore, since stress concentrates near the periphery of the punching die 12, a punching member W having a shape corresponding to the punching die 12 can be manufactured more accurately.

[Modification]
As described above, the embodiments according to the present disclosure have been described in detail. However, various modifications may be added to the above embodiments without departing from the scope of the claims and the gist thereof.

  (1) In the above embodiment, the opening 11a is provided in the back member 11. However, the opening 11a is not provided in the back member 11, and the surface of the back member 11 may be flat.

  (2) FIG. 5 shows another example of the punching device 10. In the punching device 10, an opening 12 a is provided in the tip end surface (punching surface) of the punching die 12. The opening 12a may be a depression (recess) as shown in FIG. 5 or a through-hole penetrating the punching die 12. When the workpiece 1 is punched by using such a punching device 10, the workpiece 1 is punched along the outer shape of the punching die 12 as shown in FIG. A portion of the workpiece 1 corresponding to the opening 12a is punched from the workpiece 1 along the shape of the opening 12a. That is, a through hole corresponding to the shape of the opening 12a is formed in the punched member W to be manufactured. Therefore, according to the examples shown in FIGS. 5 and 6, it is possible to form a through hole in the punching member W simultaneously with the punching of the punching member W from the workpiece 1. Note that by setting the depth of the opening 12a to be shallow, a portion corresponding to the opening 12a can be half-cut. In this case, a projection can be formed on the punching member W at the same time as the punching of the punching member W. The projection may be used as a caulking for fastening the workpieces 1 or may be used for positioning the workpieces 1.

  (3) FIG. 7 shows still another example of the punching device 10. In the punching device 10, the punching die 12 is provided on the installation surface B, the back member 11 is located above the punching die 12, and the driving mechanism 14 connected to the back member 11 has The rear member 11 is configured to move up and down. The punching die 12 includes a punching hole 12b. In this case, the punching die 12 functions as a die configured to punch out the workpiece 1 into a shape along the periphery of the punching hole 12b. A stripper 15 and an elastic body 17 are arranged in the punched hole 12b. The stripper 15 is urged toward the back member 11 by an elastic body 17. When the workpiece 1 is punched using such a punching device 10, the workpiece 1 is punched along the periphery of the punched hole 12b, as shown in FIG. At this time, since the punching member W is elastically supported by the stripper 15 and the elastic body 17, the punching member W is sandwiched between the stripper 15 and the back member 11.

  In the example shown in FIGS. 7 and 8, the outer shape of the back member 11 has a shape along the periphery of the punched hole 12b, and may be larger than the periphery of the punched hole 12b. That is, when viewed from above, the periphery of the punched hole 12b may extend slightly inside the contour of the back member 11 along the contour. In this case, the stress applied to the portion of the workpiece 1 that comes into contact with the central portion of the back member 11 is reduced by the presence of the punched holes 12b, while the workpiece 1 comes into contact with the peripheral edge of the punched holes 12b. A large stress acts on the portion due to the presence of the peripheral portion of the back member 11. Therefore, since stress concentrates near the peripheral edge of the punched hole 12b, it becomes possible to manufacture the punched member W having a shape corresponding to the punched hole 12b with higher accuracy.

  (4) The apparatuses illustrated in FIGS. 1 and 5 may not include the stripper 15. Further, in the apparatus illustrated in FIG. 7, the stripper 15 and the elastic body may not be arranged in the punched hole 12b. In the example shown in FIGS. 7 and 8, the back member 11 may overlap the entire surface or most of the cushion material 2.

  (5) As illustrated in FIG. 9 (a), the workpiece 1 and the cushion material 2 have a band shape, and the workpiece 1 and the cushioning material 2 are intermittently fed by the delivery rolls 20, 21 (conveying mechanism). The workpiece 1 may be punched by the punching device 10. Specifically, the direction in which the work material 1 is transported by the delivery roll 20 and the direction in which the cushion material 2 is transported by the delivery roll 20 intersect, and the work is performed at the intersection between the work material 1 and the cushion material 2. The material 1 and the cushion material 2 may be sandwiched between the back member 11 and the punching die 12. In this case, a plurality of punching members W can be efficiently manufactured. The delivery rolls 20, 21 are driven based on an instruction from the controller Ctr.

  As illustrated in FIG. 9A, when the workpiece 1 is located above the cushion material 2, a punched member punched at an intersection between the workpiece 1 and the cushion material 2. W is sequentially transported downstream by the delivery roll 21 while being placed on the cushion material 2. Further, the region of the workpiece 1 in which the through-holes 1 a are formed as a result of the punching of the punching member W is also sequentially transported downstream by the delivery roll 20.

  As illustrated in FIG. 9B, the work material 1 and the cushion material 2 may be transported such that a plurality of work materials 1 intersect one cushion material 2. Although not shown, the work material 1 and the cushion material 2 may be transported such that one or more work materials 1 intersect the plurality of cushion materials 2. Although not shown, two or more sets of the work material 1 and the cushion material 2 are arranged vertically, and the work material 1 and the cushion material 2 are transported such that the intersections of each set overlap in the vertical direction. You may.

  (6) As illustrated in FIG. 10 (a), the workpiece 1 and the cushion 2 have a band shape, and the workpiece 1 and the cushion 2 are overlapped so that their longitudinal directions coincide with each other. The workpiece 1 may be punched by the punching device 10 while the sheet is intermittently fed by the feed roll 20 (conveying mechanism). Also in this case, it is possible to efficiently manufacture a plurality of punching members W. Note that the delivery roll 20 is driven based on an instruction from the controller Ctr.

  As illustrated in FIG. 10A, when the workpiece 1 is located above the cushion 2, the punching member W punched from the workpiece 1 is placed on the cushion 2. While being placed, the paper is sequentially conveyed downstream by the delivery roll 21. At this time, the work material 1 and the cushion material 2 are separately wound on the downstream side, so that the punching member W punched from the work material 1 is placed on the cushion material 2 to perform a punching process. It is possible to separate the work material 1 and the cushion material 2 later.

  (7) As illustrated in FIG. 10B, the back member 11 and the punching die 12 may have a columnar shape. In this case, the band-shaped workpiece 1 and the cushion material 2 which are overlapped so that their longitudinal directions coincide with each other are pressed while being sent out by the back member 11 and the punching die 12, and are pressed by the punching die 12. The workpiece 1 is stamped. In addition, at least one of the back member 11 and the punching die 12 is driven based on an instruction from the controller Ctr.

  (8) As illustrated in FIG. 11, the workpiece 1 is punched by the punching device 10 while the workpiece 1 and the cushioning material 2 in a superposed state are sequentially conveyed in two directions by an XY stage or the like. It may be processed. Alternatively, while the back member 11 and the punching die 12 of the punching device 10 sequentially move in two directions (for example, the XY directions), the workpiece 1 and the cushioning material 2 in a superposed state are sandwiched, and The workpiece 1 may be stamped.

  (9) As illustrated in FIG. 12, the work material 1 and the cushion material 2 have a circular shape, and the work material 1 and the cushion material 2 in an overlapped state are intermittently moved by a rotation mechanism (not shown). The workpiece 1 may be punched by the punching device 10 while being rotated. In this case, the punched members W are sequentially punched from the workpiece 1 in the circumferential direction of the workpiece 1. Therefore, it becomes possible to manufacture a plurality of punching members W efficiently. Note that the back member 11 and the punching die 12 may move above the peripheral edge of the workpiece 1 without rotating the workpiece 1 and the cushion material 2.

  (10) One of the back member 11 and the punching die 12 may be located above, and the other may be located below.

  (11) The drive mechanism 14 may be configured to drive at least one of the back member 11 and the punching die 12.

  (12) For example, the present technology may be applied to various molded bodies such as a laminated iron core, a lead frame used as internal wiring of a semiconductor package, and a separator for a fuel cell.

[Example]
Example 1 A method for manufacturing a molded article (W) according to an example of the present disclosure is to overlap a workpiece (1) with a cushion material (2) having higher flexibility than the workpiece (1). Arranging a punching die (12) so as to face the workpiece (1), arranging a back member (11) so as to face the cushion material (2), and The work material (1) and the cushion material (2) are sandwiched between the (12) and the back member (11), and the punching die (12) is inserted into the cushion material (2) to form a punch. The method includes punching the workpiece (1) into a shape corresponding to the die (12). In this case, unlike the conventional method of punching a workpiece, there is no need to position the die and the punch. Therefore, it is possible to more easily punch the workpiece. In addition, since there is no need to align the die hole with the punch, there is no need to provide a pilot hole or the like for transporting the workpiece in the workpiece. Therefore, the degree of freedom of the layout of the punching of the workpiece is increased, and the yield can be improved.

  By the way, in the conventional method, it is necessary to set a gap (clearance) between the die and the punch to about 10% of the thickness of the workpiece. That is, when punching a thin workpiece, the clearance decreases in proportion to the thinning of the workpiece. Therefore, the die and the punch must be very precisely aligned. Therefore, if a thin workpiece is punched with a punch and a die as in the related art, the manufacturing cost may increase. However, according to Example 1, since the alignment between the die and the punch is not necessary, the manufacturing cost of the molded body can be significantly reduced.

  Example 2. In the method of Example 1, the punching of the workpiece (1) is performed by removing the workpiece (1) and the cushioning material (2) by a stripper (15) arranged so as to face the workpiece (1). In a state of being sandwiched between the member (11) and the punching die (12) and the back member (11), the workpiece (1) and the cushion material (2) are pressed, and the punching die ( The method may include punching the workpiece (1) into a shape corresponding to (12). In this case, when the workpiece is pressed by the punching die, the stripper suppresses warpage of the workpiece near the punching die. Therefore, the pressing force of the punching die is more appropriately transmitted to the workpiece. Therefore, it is possible to manufacture a molded body having a shape corresponding to a punching die with higher accuracy.

  Example 3 In the method of Example 1 or Example 2, the punching die (12) is a punch configured to punch the workpiece (1) into a shape along its outer shape, and the punching die (12) is provided on the back member (11). An opening (11a) smaller than the outer shape of the mold (12) may be provided. In this case, a particularly large stress acts on the portion of the workpiece that contacts the peripheral portion of the punch due to the presence of the back surface member from the punching die. For this reason, stress concentrates near the periphery of the punching die, so that a molded body having a shape corresponding to the punching die can be manufactured with higher accuracy.

  Example 4. In the method of Example 1 or Example 2, the punching die (12) is a die configured to punch the workpiece (1) into a shape along the periphery of the punching hole (12b), and the back member (11). ) May be larger than the punch hole (12b) and smaller than the punch die (12). In this case, a large stress acts on the vicinity of a portion of the workpiece that comes into contact with the periphery of the punched hole from the punching die. For this reason, stress concentrates near the periphery of the punched hole, so that a molded body having a shape corresponding to the punching die can be manufactured with higher accuracy.

  Example 5 In any of the methods of Examples 1 to 4, the work material (1) and the cushion material (2) have a band shape, and punching the work material (1) is performed so that the longitudinal directions of the work material (1) and the cushion material (2) coincide with each other. Sequentially punching the workpiece (1) into a shape corresponding to the punching die (12) while intermittently transporting the workpiece (1) and the cushioning material (2) superimposed on each other in a predetermined direction; Alternatively, the workpiece (1) is intermittently conveyed in a predetermined direction so that the workpiece (1) and the cushion material (2) intersect each other, and the workpiece (1) is intermittently conveyed. The method may include sequentially punching the workpiece (1) into a shape corresponding to the punching die (12) at the intersection of the cushion material (2) and the cushion material (2). In this case, a plurality of compacts can be efficiently manufactured.

  Example 6. In any of the methods of Examples 1 to 4, the work material (1) and the cushion material (2) have a disk shape, and the punching of the work material (1) is performed by the work material (1). And sequentially punching the workpiece (1) into a shape corresponding to the punching die (12) in the circumferential direction of the workpiece (1) while intermittently rotating the cushion material (2). May be. In this case, a plurality of compacts can be efficiently manufactured.

  Example 7 An apparatus (10) for manufacturing a molded body (W) according to an example of the present disclosure includes a punching die (12) arranged to face a workpiece (1), a cushioning material (2), By driving at least one of the backing member (11) and the punching die (12) and the backing member (11) arranged to face each other, the punching die (12) and the backing member (11) are brought close to each other. And a control mechanism (Ctr) configured to separate the drive mechanism from the drive mechanism (14). The control unit (Ctr) is configured such that the work material (1) and the cushion material (2) are overlapped with the punching die (12) and the back member (11) in a state where the work material (1) and the cushion material (2) are overlapped. The workpiece (1) is punched into a shape corresponding to the punching die (12) by pressing the punching die (12) into the cushion material (2) while pressing the die (2). Then, a process for controlling the driving mechanism (14) is executed. In this case, the same operation and effect as in Example 1 can be obtained.

  Example 8 The apparatus (10) of Example 7 further includes a stripper (15) arranged so as to face the workpiece (1), and the control unit (Ctr) includes the superposed workpiece (1) and the cushioning material. In the state where (2) is sandwiched between the stripper (15) and the back member (11), the workpiece (1) and the cushion material (2) are sandwiched between the punching die (12) and the back member (11). And the drive mechanism (14) may be controlled so as to punch the workpiece (1) into a shape corresponding to the punching die (12). In this case, the same operation and effect as those of Example 2 can be obtained.

  Example 9 In the apparatus (10) of Example 7 or 8, the punching die (12) is a punch configured to punch the workpiece (1) into a shape along the outer shape, and the back member (11) has An opening (11a) smaller than the outer shape of the punching die (12) may be provided. In this case, the same operation and effect as those of Example 3 can be obtained.

  Example 10. In the apparatus (10) of Example 7 or 8, the punching die (12) is a die configured to punch the workpiece (1) into a shape along the periphery of the punching hole (12b), and has a back surface. The outer shape of the member (11) may be larger than the punching hole () 11b and smaller than the outer shape of the punching die (12). In this case, the same operation and effect as those of Example 4 can be obtained.

  Example 11 FIG. The apparatus (10) according to any one of Examples 7 to 10 further includes a transport mechanism (20) configured to transport the workpiece (1) and the cushion (2) having a belt shape in a predetermined direction, The control unit (Ctr) intermittently conveys the work material (1) and the cushion material (2) superimposed so that their longitudinal directions coincide with each other in a predetermined direction, and controls the punching die (12). The drive mechanism (14) and the transport mechanism (20, 21) are controlled so as to sequentially punch the workpiece (1) into a corresponding shape, or the workpiece (1) and the cushion material (2) intersect. While the workpiece (1) and the cushion material (2) are intermittently conveyed in a predetermined direction, the punching die (12) intersects the workpiece (1) and the cushion material (2). Workpiece (1) is punched out sequentially into the shape corresponding to ()) Kinematic mechanism (14) and the transfer mechanism (20) may be controlled. In this case, the same operation and effect as in Example 5 can be obtained.

  Example 12. The apparatus (10) according to any one of Examples 7 to 10 further includes a rotation mechanism configured to rotate the workpiece (1) and the cushion (2) each having a disk shape, and further includes a control unit (Ctr). ) Correspond to the punching die (12) sequentially in the circumferential direction of the workpiece (1) while intermittently rotating the workpiece (1) and the cushioning material (2) in a superposed state. The drive mechanism (14) and the rotation mechanism may be controlled so as to punch the workpiece (1) into a shape. In this case, the same operation and effect as those in Example 6 can be obtained.

  DESCRIPTION OF SYMBOLS 1 ... Work material, 2 ... Cushion material, 10 ... Punching apparatus (molded body manufacturing apparatus), 11 ... Back member, 11a ... Opening, 12 ... Punching die, 12b ... Punching hole, 13 ... Support plate , 14: drive mechanism, 15: stripper, 20, 21: transport mechanism, Ctr: controller (control unit), W: punching member (formed body).

Claims (12)

Work material, and overlapping the cushion material having a higher flexibility than the work material,
Arranging a punching die so as to face the workpiece,
Arranging a back member so as to face the cushion material,
By pressing the work material and the cushion material between the punching die and the back member, and embedding the punching die into the cushion material, a shape corresponding to the punching die is formed. And punching the workpiece.   The punching of the workpiece is performed in a state where the workpiece and the cushion material are sandwiched between the back member and the workpiece by a stripper arranged to face the workpiece. 2. The method according to claim 1, comprising clamping the workpiece and the cushion material with the back member and punching the workpiece into a shape corresponding to the punching die. 3. The punching die is a punch configured to punch the workpiece into a shape along the outer shape thereof,
The method according to claim 1, wherein the back member is provided with an opening smaller than an outer shape of the stamping die. The punching die is a die configured to punch the workpiece in a shape along the periphery of a punching hole,
The method according to claim 1, wherein an outer shape of the back member is larger than the punched hole and smaller than an outer shape of the punching die. The work material and the cushion material have a belt shape,
The punching of the workpiece is performed by intermittently transporting the workpiece and the cushion material superimposed in such a manner that the longitudinal directions thereof coincide with each other in a predetermined direction, while forming the shape corresponding to the punching die. By sequentially punching the workpiece, or, while intermittently transporting the workpiece and the cushion material in a predetermined direction so that the workpiece and the cushion material intersect, the workpiece material and 5. The method according to claim 1, comprising sequentially punching the workpiece into a shape corresponding to the punching die at an intersection with the cushion material. 6. The work material and the cushion material have a disk shape,
The punching of the workpiece is performed by intermittently rotating the workpiece and the cushion material in the circumferential direction of the workpiece, sequentially forming the workpiece into a shape corresponding to the punching die. The method according to any one of the preceding claims, comprising punching. A punching die arranged to face the workpiece,
A back member arranged to face the cushion material,
A drive mechanism configured to drive at least one of the punching die and the back member to move the punching die and the back member close to and away from each other,
And a control unit,
In the state where the work material and the cushion material are overlapped, the control unit presses the work material and the cushion material with the punching die and the back surface member, and presses the punching die. An apparatus for manufacturing a molded body, comprising: performing a process of controlling the drive mechanism so that the workpiece is punched into a shape corresponding to the punching die by being sunk into the cushion material. Further comprising a stripper arranged to face the workpiece,
The control unit is configured to hold the superposed workpiece and the cushion material between the stripper and the back member, and to use the punching die and the back member to form the workpiece and the cushion. The apparatus according to claim 7, wherein the driving mechanism is controlled so as to press the material and punch the workpiece into a shape corresponding to the punching die. The punching die is a punch configured to punch the workpiece into a shape along the outer shape thereof,
The apparatus according to claim 7, wherein the back member is provided with an opening smaller than an outer shape of the punching die. The punching die is a die configured to punch the workpiece in a shape along the periphery of a punching hole,
The apparatus according to claim 7, wherein an outer shape of the back member is larger than the punched hole and smaller than an outer shape of the punching die. Further provided is a transport mechanism configured to transport the workpiece and the cushion material having a belt shape in a predetermined direction,
The control unit is configured to intermittently convey the work material and the cushion material superimposed so that their longitudinal directions coincide with each other in a predetermined direction, and to form the work material into a shape corresponding to the punching die. Controlling the drive mechanism and the transport mechanism so as to sequentially punch the workpiece, or intermittently transporting the workpiece and the cushion material in a predetermined direction so that the workpiece and the cushion material intersect, respectively. The driving mechanism and the transport mechanism are controlled so as to sequentially punch the workpiece in a shape corresponding to the punching die at an intersection between the workpiece and the cushion material, An apparatus according to any one of claims 10 to 13. A rotating mechanism configured to rotate the workpiece and the cushion material having a disk shape,
The control unit sequentially intermittently rotates the work material and the cushion material in a superimposed state in a circumferential direction of the work material to have a shape corresponding to the punching die. The apparatus according to any one of claims 7 to 10, wherein the driving mechanism and the rotating mechanism are controlled so as to punch out.

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