JP6205027B1 - Edge cutting method for synthetic resin molded product, edge cutting device, and die cutting device - Google Patents

Abstract

For example, when a molded product material having a bulging portion that is vacuum-formed on a synthetic resin sheet is punched into a molded product, a notch can be simultaneously formed at the edge portion of the bulging portion. A molding material 6 in which a bulging portion 6A is formed by vacuum molding is arranged, and a punching blade 16 placed on an upper die 15 is placed from a synthetic resin sheet S placed and set on the lower die 11. When the molded product 1 is punched and separated by being pressed downward with respect to the lower mold 11, a cut 4 is formed at the edge portion of the bulging portion 6 </ b> A in the molded product material 6 simultaneously with the punching. A cutting blade 17 for forming a cut is cross-fixed to a punching blade 16 for punching the molded product 1 on the outer periphery of the bulging portion 6A, and the bulging portion 6A in the synthetic resin sheet S is supported from the inside. The punching blade 16 of the upper die 15 punches the outer periphery of the bulging portion 6A, and the cutting blade 17 enters the edge portion of the bulging portion 6A to form the cut 4. [Selection] Figure 3

Description

  The present invention relates to a synthetic resin molded product or the like that is three-dimensionally molded into, for example, a synthetic resin sheet having a dent / recessed bulging portion, and is formed by vacuum molding or hot platen compression molding arranged on the synthetic resin sheet. Synthetic resin molding that can form a notch in, for example, an edge portion of the bulging portion, or cut and remove a part of the bulging portion at the same time as the punching processing of the molded product material. The present invention relates to a method for cutting an edge of a product, the edge cutting device, and a punching device.

  Conventionally, for example, a synthetic resin cover body formed in a thin-bottom box shape so as to cover an opening portion of a container body having a predetermined depth has been proposed. The cover body has a planar outer shape corresponding to the shape of the opening portion of the container body. For example, the cover body is formed by extracting the peripheral edge from the sheet material after vacuum forming on a synthetic resin sheet material having a predetermined thickness. A rising edge portion that is in contact with the outer edge or inner edge of the opening. However, this cover body is troublesome because it is necessary to remove the cover body itself even when a small amount of liquid material in the container body is taken out to cover the entire opening of the container body. Therefore, it is possible to cope with this by providing in advance a undulating child cover that opens and closes only the corners of the cover body. In order to provide this child cover, after punching and molding from the sheet material, for example, it is necessary to provide a cut with a cutting tool or the like at the edge portion of each corner portion of the cover body so that it can be raised and lowered. However, this cutting has to be done manually.

  In addition, even in the case of constituting an open-type device / equipment made of synthetic resin having an open portion in which a part of the edge portion is cut out and the other periphery is surrounded by the edge portion, the device / equipment A substantially vessel-shaped substrate material is punched out after vacuum forming on the sheet material, and a part of the edge portion serving as an open portion is formed by simultaneous cutting of the substrate bottom. All of these cutting operations are performed manually, and even if the punching operation from the sheet material is mechanically processed, the subsequent process is troublesome.

  On the other hand, in the case of a so-called open-body-shaped / vessel-shaped resin-molded product having the so-called concave-shaped / dent-shaped bulged portion as described above, it can be molded by injection molding, Since the quantity obtained by the so-called one-shot molding process in molding is not large, as a result, it must be more expensive than the vacuum molding method or the like.

  However, for example, as a die-cutting method in which an edge portion in a resin-molded product having a bulging portion such as a container shape or a concave shape molded by a vacuum molding method is cut open to have an open structure, for example, a method for punching a plastic molded product according to Patent Document 1 And a punching method and apparatus for plastic molded products according to Patent Document 2 have been proposed. In the punching methods shown in these drawings, when punching the periphery of a concave-shaped molded product, a part of the edge portion is cut and supported between the punching die and the cradle so that it floats higher than the cutting edge of the punching die Thomson blade. It is assumed that an intermediate plate is interposed, and a part of a molded product in which a cut surface is not on the same plane and a horizontal surface and a vertical surface intersect can be excised, and can be punched in one step.

Japanese Patent No. 4972226 Japanese Patent No. 5023198

  Since the punching methods shown in these Patent Documents 1 and 2 are used with a punching die provided with a Thomson blade and an intermediate plate in addition to the cradle, each member can be set and handled during the punching operation. Even though it is troublesome and a part of the edge part of the vacuum molded product or the like can be excised, for example, it is not possible to form a cut in the edge part.

  Therefore, the present invention was created in view of the above-described circumstances, and in a molded product material molded by vacuum molding, hot platen compression molding, etc., for a synthetic resin sheet having a predetermined thickness, When a cut is provided in the edge portion that is the periphery of the bulging portion of the material, or when a part of the bulging portion including the edge portion is cut off, these treatments are performed by punching a molded product from the synthetic resin sheet. A method for cutting edges of synthetic resin molded products, etc., which can be performed in one step at times, and can provide resin molded products at low cost and in large quantities by stamping after vacuum molding, etc., instead of injection molding Another object of the present invention is to provide an edge cutting device and a punching device.

In order to solve the above-described problems, in the present invention, a description will be given with reference numerals used in the embodiments for carrying out the invention to be described later. Molded product materials (6, 20, 40) in which the bulging portions 6A, 20A, 40A are formed by molding and hot platen molding are arranged and placed on the lower molds 11, 31, 51. From the sheet material such as the synthetic resin sheet S to be set, the punching blades 16, 36, 56 disposed on the upper molds 15, 35, 55 are pressed downward against the lower molds 11, 31, 51 to form a molded product ( 1, 21, 41) When punching and separating each, the cut 4 is formed at the edge of the bulging portions 6A, 20A, 40A in the molded article material (6, 20, 40) simultaneously with the punching. Outside the exit 6A, 20A, 40A The cutting blades 17, 37, and 57 for cutting formation are cross-fixed to the punching blades 16, 36, and 56 for punching the molded product (1, 21 and 41) with the lower molds 11, 31, and 51. The bulging portions 6A, 20A, 40A of the sheet material (S) placed thereon are supported from the inside, and the bulging portions 6A are formed by the punching blades 16, 36, 56 of the upper dies 15, 35, 55. , 20A, punching the outer periphery of 40A, there is formed a blade edge which is formed on the inner edge portion located inside the punching blades 16,36,56, the tip in cutting blade 17,37,57 and forming a notch 4 substantially acute angle Rise and biting edge 18,38,58 outgoing portion 6A, 20A, enters the edge portion of 40A.
In addition, molded product materials (6, 20, 40) in which the bulging portions 6A, 20A, 40A are formed by vacuum molding / hot platen molding are arranged and are placed on the lower molds 11, 31, 51. From the sheet material (S) placed and set, the punching blades 16, 36, 56 disposed on the upper molds 15, 35, 55 are pressed downward with respect to the lower molds 11, 31, 51 to form the molded product. When punching and separating each of (1, 21, 41), the cutting blades 17, 36, and 56 for punching the outer peripheries of the bulging portions 6 A, 20 A, and 40 A of the molded product material (6, 20, 40) are cut into the cutting blade 17. , 37 and 57 are cross-fixed, and the punching blades 17, 37 and 57 are positioned inside the punching blades 16, 36 and 56 when punching the outer periphery of the bulging portions 6 A, 20 A and 40 A. Same shape as the edge of the cutting edge formed on the inner edge The substantially acute angled biting ends 18, 38, and 58 are made to enter the edge portions of the bulging portions 6 </ b> A, 20 </ b> A, and 40 </ b> A to form cuts 4 at the edge portions.
In the edge cutting device such as a synthetic resin molded product, the molded product material (6, 20, 40) in which the bulging portions 6A, 20A, 40A are formed by vacuum molding / hot plate pressure molding is arranged. When punching and separating each of the molded products (1, 21, 41) from the synthetic resin sheet S, the punching blade 16 for punching the outer periphery of the bulging portions 6A, 20A, 40A of the molded product material (6, 20, 40) 36, 56 are cross-fixed with cutting blades 17, 37, 57 that enter the edge portions of the bulging portions 6A, 20A, 40A of the molded article material (6, 20, 40) to form the cuts 4. The cutting blades 17, 37, 57 form a cutting edge at the inner edge portion located inside the punching blades 16, 36, 56, and a substantially acute biting end 18, 38, 58 at the tip, respectively. characterized in that it was.
Further, in a die-cutting device such as a synthetic resin molded product, molded product materials (6, 20, 40) in which the bulging portions 6A, 20A, 40A are formed by vacuum molding / hot plate pressure molding are arranged. The lower molds 11, 31, 51 placed and set by being covered with the sheet material (S), and the bulging portions 6A, 20A, 40A of the sheet material (S) above the lower molds 11, 31, 51 It consists of upper molds 15, 35, 55 that move up and down relative to the lower molds 11, 31, 51 so as to separate the molded product from the sheet material (S). Punching blades 16, 36, 56 for punching the outer periphery of the bulging portions 6A, 20A, 40A of the material (S), and a cutting blade 17, for forming the cuts 4 at the edge portions of the bulging portions 6A, 20A, 40A, 37, 57 and the cutting blades 17, 37, 57 are punching blades 16, 36, 56. Have been crossed fixed, together with the inner edge portion located inside the punching blades 16,36,56 is in the blade edge, biting end tip protruding from the cutting edge of the punching blade is formed into substantially an acute angle The lower molds 11, 31, 51 are provided with bulging portion support blocks 12, 32, 52 for supporting the bulging portions 6A, 20A, 40A of the sheet material (S) from the inside. The bulging portion support blocks 12, 32, 52 are provided with notch guide grooves 13, 33, 53 for guiding the notching blades 17, 37, 57 to enter.
The cutting blade 17,37,57 can be configure to intersect at substantially perpendicular state in punching blades 16,36,56.
Further, a crease line blade 19 is formed on the upper surface of the bulging portion support blocks 12, 32, 52 of the lower molds 11, 31, 51 to form the streak-like undulating grooves 5 inside the bulging portions 6A, 20A, 40A. Can be configured.
The cutting blades 17, 37, 57 arranged in the upper molds 15, 35, 55 are provided in pairs at opposite positions of the edge portions of the bulging portions 6A, 20A, 40A. Cutting blades 39 and 59 for cutting out the base piece portions of the bulging portions 6A, 20A and 40A can be arranged between the blades 17, 37 and 57.

In the edge cutting method, the edge cutting device, and the die-cutting device for the synthetic resin molded product or the like according to the present invention configured as described above, the lower molds 11, 31, 51 that are relatively wrinkled up and down, Between the upper dies 15, 35, 55, the bulging portions 6A, 20A, 40A of the sheet material such as the synthetic resin sheet S placed and set on the lower dies 11, 31, 51 are bulging portion supporting blocks. The upper molds 15, 35, 52 that are supported from the inside by the bulge support blocks 12, 32, 52 and lowered with respect to the lower molds 11, 31, 51 are covered with the 12, 32, 52. The punching blades 16, 36, and 56 in 55 punch the periphery of the bulging portions 6A, 20A, and 40A from the sheet material (S) to separate the molded products (1, 21, 41).
During the lowering of the punching blades 16, 39, 59, the biting ends 18, 38, 58 of the cutting blades 17, 37, 57 projecting from the punching blades 16, 36, 56 are first bulged 6A, It enters the edge portions of 20A and 40A, enters the notch guide grooves 13, 33 and 53 in the bulging portion support blocks 12, 32 and 52, and cuts the edge portions while descending while being guided. Next, when the edge is further lowered and the cutting of the edge portion is finished, the punching blades 16, 36, 56 intersecting with the cutting blades 17, 37, 57 are the outer circumferences of the base ends of the bulging portions 6A, 20A, 40A. Then, the molded product (1, 21, 41) is punched out from the sheet material (S).
The cutting blades 17, 37, 57 intersect the punching blades 16, 36, 56 in a substantially orthogonal state, and the cutting edges 18, 38, 58 at the inner edges of the cutting edges 17, 37, 58 are The edge portions of the bulging portions 6A, 20A, and 40A covered by the bulging portion support blocks 12, 32, and 52 enter smoothly into the cut-out guide grooves 13, 33, and 53. By doing so, the edge portion is cut reliably, and the cut 4 is formed in the edge portion. For example, the notch 4 cuts off a part of the edge portion, thereby enabling a part of the bulging portions 6A, 20A, and 40A to be raised and lowered, and cutting the base piece portion of the bulging portions 6A, 20A, and 40A. A part of the bulging portions 6A, 20A, 40A is excised.
The crease line blade 19 on the upper surface of the bulge portion support blocks 12, 32, 52 has a streak-like shape on the inner side surface of the bulge portions 6A, 20A, 40A covering the bulge portion support blocks 12, 32, 52. The undulation groove 5 is formed, and the undulation structure is formed such that a part of the bulging portions 6A, 20A, 40A is smoothly undulated together with the notches 4 connected to the undulation groove 5.
The cutting blades 39, 59 disposed between the cutting blades 17, 37, 57 provided in a pair at opposite positions of the edge portions in the bulging portions 6A, 20A, 40A are the cutting blades 17, 37, 57 forms a pair of cuts 4 at the edge portions of the bulging portions 6A, 20A, 40A, and simultaneously cuts the edge portions between the pair of cuts 4 with the cutting blades 39, 59, This edge portion is cut out, and an opening or the like directed to the side of the bulging portions 6A, 20A, 40A is formed and opened.

  Since the present invention is configured as described above, a molded product material (6, 20, 40), when forming a molded article (1, 21, 41) by punching and separating from a sheet material such as the synthetic resin sheet S in which the arrangement is made, cut formation at the edge portions in the bulging portions 6A, 20A, 40A; Cutting and removing the base piece portion can be performed simultaneously with the punching process. Therefore, various types of molded articles (1, 21, 41) that have been difficult to form unless using injection molding can be provided at low cost and in large quantities by vacuum forming or the like, and by punching processing in one step.

  That is, in the present invention, molded product materials (6, 20, 40) in which the bulging portions 6A, 20A, 40A are formed by vacuum molding, hot platen pressure molding, etc. are arranged, and the lower molds 11, 31 are arranged. , 51 of the bulging portions 6A, 20A, 40A arranged on the upper molds 15, 35, 55 to be pressed down against the lower molds 11, 31, 51 from the sheet material (S) placed and set on Since the cutting blades 16, 36, and 56 that punch the outer periphery are inserted into the edge portions of the bulging portions 6A, 20A, and 40A and the cutting blades 17, 37, and 57 that form the cuts 4 at the edge portions are cross-fixed. It is. Thus, when various molded products (1, 21, 41) are punched and molded from the molded product materials (6, 20, 40) after the molding formed on the sheet material (S), the molded products (1, 21, 21) are formed. 41), the formation of the cuts 4 in the edge portions of the bulging portions 6A, 20A, 40A, partial excision of the base piece portion, etc. can be processed simultaneously with the punching.

  Further, the lower molds 11, 31, 51 are provided with bulging portion support blocks 12, 32, 52 for supporting the bulging portions 6A, 20A, 40A of the molded product material (6, 20, 40) from the inside thereof. The bulging portion support blocks 12, 32, 52 are provided with cutting guide grooves 13, 33, 53 for guiding the cutting blades 17, 37, 57, so that the upper molds 15, 35, 55 are hit. When the cutting blades 16, 36, 56 cut out the outer periphery of the molded product material (6, 20, 40), the cutting blades 17, 37, 57 bite into the edges of the bulging portions 6A, 20A, 40A, It enters while being guided into the notch guide grooves 13, 33 and 53, and the bulging portions 6A, 20A and 40A are supported by the bulging portion supporting blocks 12, 32 and 52, and the surroundings are distorted. The cut 4 can be reliably formed without being formed.

  Moreover, the cutting blades 17, 37, 57 intersect the punching blades 16, 36, 56 in a substantially orthogonal state, and the inner edge portion located inside the punching blades 16, 36, 56 serves as a cutting edge. The biting ends 18, 38, and 58 are configured to have substantially acute angles, so that the upper molds 15, 35, and 55 that are lowered with respect to the lower molds 11, 31, and 51 are expanded even when a large pressing force is not applied thereto. The edges of the protruding portions 6A, 20A, and 40A are surely entered by a smooth biting action, and a cut 4 is formed at the edge.

  Further, a crease line blade that forms streak-like undulating grooves 5 inside the bulging portions 6A, 20A, 40A on the upper surface of the bulging portion support blocks 12, 32, 52 of the lower molds 11, 31, 51. 19 is arranged so that the base piece portion of the bulging portions 6A, 20A, and 40A is lined inside the bulging portions 6A, 20A, and 40A that are covered by the bulging portion support blocks 12, 32, and 52. A groove-shaped crease line can be formed, and thereby, for example, a part of the bulging portions 6A, 20A, 40A can be undulated. For example, the undulating open / close type child cover 3 in the cover cover 1 can be easily formed. it can.

  The cutting blades 17, 37, 57 arranged in the upper molds 15, 35, 55 are provided in pairs at opposite positions of the edge portions of the bulging portions 6A, 20A, 40A. Since the cutting blades 39 and 59 for cutting out the base piece portions of the bulging portions 6A, 20A, and 40A are arranged between the blades 17, 37, and 57, a part of the bulging portions 6A, 20A, and 40A A certain base piece portion can be cut out together with the cut 4 at the edge portion. For example, as a protector 21 at the corner of the furniture F, it can be simply used as a can mouth pouring guide 41 to be attached to the liquid can L mouth. Can be formed.

  In addition, the code | symbol attached | subjected in each means of the means for solving said subject and the effect of invention was attached | subjected in order to make easy reference with the part which shows each structure part described in drawing. The present invention is not limited to these descriptions, structures, shapes, and the like indicated by reference numerals and the like in the drawings.

It is a perspective view of the cover product provided with the molded article obtained by 1st Embodiment for implementing this invention, for example, the raising / closing opening-and-closing child cover. It is sectional drawing of the die-cutting apparatus which similarly punches out this cover cover tool. It is an exploded perspective view of a die-cutting device similarly. It is a disassembled perspective view which shows the principal part in a die-cutting apparatus similarly. It is a perspective view of the molded article obtained by 2nd Embodiment, for example, a protector. It is sectional drawing of the die-cutting apparatus which similarly punches a protector. It is an exploded perspective view of a die-cutting device similarly. It is a perspective view of the molded article obtained by 3rd Embodiment, for example, a can mouth extraction guide. It is sectional drawing of the die-cutting apparatus which similarly punches out a can mouth pouring tool. It is an exploded perspective view of a die-cutting device similarly.

(First embodiment)
Hereinafter, an embodiment for carrying out the present invention will be described with reference to the drawings. Reference numeral 1 in FIG. 1 to FIG. 4 showing the first embodiment indicates that the first embodiment is formed by vacuum molding, hot platen pressure molding, or the like. For example, it is a cover cover device cut out from the cover material 6 that is a molded product having the bulging portion 6A obtained by molding. The cover cover 1 is made to pass through the inside and outside of the storage container B at one corner, for example, in a state where the cover cover 1 is covered with the opening of the storage container B formed in the shape of a box with an open top having a rectangular shape on a plane. It comprises an integral undulating open / close type child cover 3.

  In the cover cover 1, an edge portion having a predetermined height that comes into contact with, for example, the outer surface of the opening of the storage container B is formed around the cover main body 2 formed in an outer shape corresponding to the outer shape of the opening of the storage container B. The bulging part 6A is formed by being provided in the form of a leg, the notch 4 provided at a pair of intersecting edge portions in one corner, and the covering cover that communicates between the notches 4 The ridge groove 5 provided in 1 forms a child cover 3 having a triangular shape on a plane that can be undulated and opened with respect to the cover body 2.

  The cover material 6 serving as a material for forming the cover cover 1 is, for example, a synthetic resin sheet S having a predetermined width and wound in a roll shape, or a paper sheet made of pulp (not shown). By being conveyed to a vacuum forming machine or the like (not shown), the synthetic resin sheet S or the like is arrayed and formed in a plurality of rows in the front / rear / left / right vertical and horizontal directions along the conveyance direction. Thereafter, when each of the cover material 6 is punched out from the synthetic resin sheet S as a single piece by the die-cutting device 10 to be taken out as a product as the cover cover tool 1, the above-mentioned for the child cover 3 is removed during the punching process. The notch 4 and the undulating groove 5 are formed simultaneously.

  For this purpose, the punching device 10 places and sets on the upper surface a synthetic resin sheet S on which a cover material 6 in which a bulging portion 6A formed in a bulging shape after vacuum molding or the like is formed is arranged. The lower mold 11 and the lower mold 11 are moved up and down with respect to the lower mold 11 so that the outer cover 11 is punched out of the synthetic resin sheet S and the outer cover 11 is placed on the upper surface of the lower mold 11. The upper mold 15 is formed.

  The upper die 15 includes a punching blade 16 disposed along the outer shape of the cover cover tool 1 so as to punch the outer periphery of the cover tool material 6 (cover cover tool 1) as a molded product material, and a cover cover tool. 1 which is crossed by the punching blade 16 corresponding to the cutting position provided in the edge portion of the cover material 6, that is, the edge portion of the bulging portion 6 </ b> A in the cover material 6, and the leading end protruding from the cutting edge of the punching blade 16 A cutting blade 17 having an end 18 is provided, and the punching blade 16 and the cutting blade 17 are disposed so as to protrude downward from the lower surface of the upper die 15. The lower mold 11 has a shape along the bulging portion 6A of the cover material 6 and supports the bulging portion 6A from the inside, and a bulging portion support having a cutting guide groove 13 into which the cutting blade 17 enters. Blocks 12 are arranged on the upper surface.

  Further, a plurality of sets of lower molds 11 and upper molds 15 in the punching device 10 corresponding to each of the plurality of cover material 6 arranged in the synthetic resin sheet S, and upper and lower corresponding to the outer shape of the synthetic resin sheet S. Are arranged in a plurality of rows in the longitudinal and lateral directions in the front-rear and right-and-left directions along the conveying direction. In the illustrated example, only one of them is shown, and actually, a plurality of them are arranged in the vertical and horizontal directions, and this is the same in other embodiments. Further, in the die-cutting device 10 composed of the lower die 11 and the upper die 15, guide means such as the lower die 11 and the upper die 15 are provided so that the upper die 15 is lowered opposite to the lower die 11. Guide struts and the like arranged between each other are also omitted in the illustrated example, and the same applies to other embodiments.

  The punching blade 16 in the upper die 15 has a Thomson blade configuration that has been conventionally incorporated, and is slightly higher than the height of the bulging portion 6A of the cover material 6 (cover cover tool 1), for example. It protrudes downward from the lower surface of the upper die 15 and is arranged so as to be embedded along the outer peripheral shape so as to surround the outer periphery of the cover cover 1, and the upper die 15 is lowered and set on the lower die 11. When pressed against the surface of the synthetic resin sheet S, the cover 1 is punched out by biting into the synthetic resin sheet S.

  The cutting blade 17 is integrally formed by crossing the punching blade 16 and meshing and welding the meshing slits provided in each of the punching blade 16 and the cutting blade 17, for example. The cutting blade 17 only needs to be arranged toward the inside of the cover tool material 6 at least inside the punching blade 16 positioned on the outer periphery of the cover tool material 6. , The cut material 4 breaks into a predetermined position of the edge portion of the standing leg that is the periphery of the bulging portion 6A of the cover material 6 to form a cut 4. The cutting blade 17 in the drawing is formed in a straight line shape in a cross section, but although not shown in the drawing, for example, the cutting blade 17 may have a curved shape or a cylindrical shape. The point is that it may be cut linearly into the edge portion of the bulging portion 6A together with the punching blade 16 for punching the outer shape of the cover material 6 or a part thereof may be cut away so as to bend. The same applies to the embodiment.

  The biting end 18 at the tip of the cutting blade 17 is formed in an acute V-shape / mountain shape so as to enter the edge portion of the bulging portion 6 </ b> A strongly and smoothly, and inside the punching blade 16. The positioned inner edge portion is formed to be an inclined blade edge extending from the leading biting end 18 to the base.

  On the other hand, the bulging portion support block 12 of the lower die 11 has an outer shape substantially corresponding to the inner shape of the bulging portion 6A of the cover material 6 and is provided in a protruding shape on the upper surface of the lower die 11. The synthetic resin sheet S is placed and supported so that the cover 1 is punched from the synthetic resin sheet S by the punching blade 16 in the upper mold 15 at the periphery of the bulging portion support block 12.

  The incision guide groove 13 of the bulging portion support block 12 is a cutting blade that enters into a portion corresponding to the four incisions provided on the edge portion of the bulging portion 6A that covers the bulging portion support block 12. The bulge portion support block 12 is formed in a slit shape so that a sufficient margin / gap with the 17 blade edges is generated. Further, the side surface and the upper surface of the bulging portion support block 12 at the site of the notch guide groove 13 are provided on the inner side of the bulging portion 6A so as to firmly support the bulging portion 6A from the inner side without causing the bulging portion 6A to rattle. It is designed to be in close contact with the wall surface and the inner surface of the upper wall.

  In the figure, reference numeral 19 denotes a gap between the cuts 4 arranged in a pair at the boundary between the cover body 2 and the child cover 3 in order to raise and lower the child cover 3 with respect to the cover body 2 of the cover cover 1. It is a crease line blade for covering the undulating grooves 5 formed so as to be connected and providing them in the form of streak grooves on the back surface of the cover tool 1, and between the notch guide grooves 13 on the upper surface of the bulging portion support block 12. It is arranged in an embedded manner so as to be tied.

  Reference numeral 9 in the figure denotes a buffer means disposed on the upper die 15 and, if necessary, the lower die 11. When the upper die 15 is lowered with respect to the lower die 11, the bulging portion support block 12 is provided. The bulging portion 6A itself supported by the rim is pressed against its peripheral edge so that the punching blade 16, the cutting blade 17 and the like enter the synthetic resin sheet S to smoothly perform predetermined cutting, cutting, punching, and the like. I have to.

  When using the die cutting apparatus 10 in the first embodiment configured as described above, the cover material 6 having the bulging portion 6A is arranged on the lower mold plate material on which the lower mold 11 is arranged. The synthetic resin sheet S is loaded and placed and set so that the bulging portion 6A covers the bulging portion support block 12. Then, the upper mold plate material on which the upper mold 15 is arranged descends from above, and the punching blade 16 and the cutting blade 17 of the upper mold 15 are pressed into the synthetic resin sheet S by a predetermined pressure applied. The punching blade 16 punches the peripheral edge of the cover material 6 (cover cover tool 1) and separates it from the synthetic resin sheet S. At the same time, the cutting blade 17 enters the cutting guide groove 13 so that the bulging portion 6A. A notch 4 is formed in the edge portion of the. Further, when the upper mold plate is pressed against the lower mold plate, the upper portion of the bulging portion 6A of the cover material 6 (covering cover device 1) covering the upper surface of the bulging portion support block 12 is creased. To form a undulating groove 5, which is undulated by the undulating groove 5, and constitutes a child cover 3 whose edge portion is separated from the cover body 2 by the notch 4.

  The cover 1 having the child cover 3 formed in this manner is used as various storage containers B, for example, a lid of a miso container containing miso, a lid of a comparative large container containing a liquid material, or the like. It can be used and can be provided at a lower cost than when it is molded by injection molding.

(Second Embodiment)
In the second embodiment shown in FIG. 5 to FIG. 7, for example, a protective edge piece 23 that is formed as a leg on two orthogonal edges is provided on the protective device main body 22 that has a substantially right triangle shape in a plane as shown in FIG. 5. This is a case where the protective device 21 is formed so as to be integrally formed and opened at the oblique side edge so as to cover and protect corner portions of the furniture F, for example. The protective device 21 is formed as a bulging portion 20 </ b> A by forming a leg portion on each edge around the protective device main body 22, and is a shallow dish-shaped protective device material 20 that has a triangular shape on a plane. Are formed on the synthetic resin sheet S, and when punching out from the synthetic resin sheet S, it is obtained by cutting off the hypotenuse.

  In the punching device 30 for punching and forming the protector 21 as described above, the protector material 20 on which the bulging portion 20A formed in a bulging shape after molding by vacuum molding or hot platen molding is formed is arranged. The lower die 31 on which the synthetic resin sheet S is placed and set on the upper surface, and the outer periphery of the protective device material 20 placed and set on the upper surface of the lower die 31 are punched out from the synthetic resin sheet S. The upper die 35 is moved up and down with respect to the lower die 31.

  The upper mold 35 includes a punching blade 36 disposed along the outer shape of the protective device material 20 so as to punch the outer periphery of the protective device material 20 (protective device 21), and a bulging portion 20A of the protective device material 20. A cutting blade 37 having a biting end 38 which is crossed by the punching blade 36 corresponding to the cutting position provided in the edge portion to be cut out and whose tip protrudes from the cutting edge of the punching blade 36; A cutting blade 39 disposed between the cutting blades 37 provided in a pair corresponding to the cutting position of the edge of the material 20, and the punching blade 36, the cutting blade 37, and the cutting blade 39. Is disposed in a protruding manner on the lower surface of the upper die 35. In the figure, reference numeral 29 is a buffer means.

  Further, as shown in the drawing, the punching blade 36 and the cutting blade 37 in the upper mold 35 are configured in the same manner as the punching blade 16 and the cutting blade 17 in the first embodiment. The cutting blade 39 is supported by the bulging portion support block 32 in the lower mold 31, and in order to cut out the portion of the bulging portion 20 </ b> A protruding upward simultaneously with the cutting of the edge portion, It protrudes downward from the lower surface of the upper die 35 at a height corresponding to the height position.

  In the illustrated example, the protective device material 20 is formed in a shallow dish shape having a substantially square shape in a plane and having an edge portion formed around it, thereby forming a bulging portion 20A. In the arrayed synthetic resin sheets S, the four corners of each protective equipment material 20 in the synthetic resin sheet S are punched out into a right triangle shape and separated into four protective equipment 21 from one protective equipment material 20. Is to be obtained. Of course, a plurality of individual protector materials 20 on which a right-angled triangular bulging portion 20A is formed are arranged on the synthetic resin sheet S, and various processes such as punching, cutting, and cutting are similarly performed. You may implement by a process.

  When using the punching device 30 according to the second embodiment configured as described above, the protector material 20 having the bulging portion 20A is arranged on the lower mold plate material on which the lower mold 31 is arranged. The synthetic resin sheet S is loaded and placed and set so that the bulging portion 20A covers the bulging portion support block 32. Then, the upper mold plate material on which the upper mold 35 is arranged descends from above, and the punching blade 36, the cutting blade 37, and the cutting blade 39 of the upper mold 35 bite into the synthetic resin sheet S by a predetermined pressure applied. The punching blade 36 punches the periphery of the protective device material 20 (protective device 21) and separates it from the synthetic resin sheet S. At the same time, the cutting blade 37 enters the cutting guide groove 33 to form the cut 4 at the edge portion of the bulging portion 20A, and the cutting blade 39 cuts out the wall piece portion of the bulging portion 20A to protect it. The protective device 21 is formed by forming an open portion at 21.

  Thus, the aspect of the protector 21 formed into a concave shape in which a part of the edge portion is opened is not limited to the one that protects the corner portion of the furniture F or the like, and for example, a dust collector, a T-shaped razor blade, or the like. Can be used as a sliding blade cover, scooping tool, tray, etc.

(Third embodiment)
Next, the third embodiment will be described with reference to FIGS. 8 to 10. The molded product in the third embodiment is, for example, a can mouth pouring guide tool 41, and the top of the liquid can L that contains the liquid material as shown in the figure. The guide tool body 42 in which a fitting hole 43 that fits into a can opening formed in the wall portion is opened is a pouring groove opening 47 that is open to the outside of the liquid can L. The guide rod 44 is integrally formed, and the pouring guide rod 44 has an inclined height adjusting portion 45 that gradually increases from the outer peripheral edge of the fitting hole 43 to the hook, and the left and right edges. It has a guide wall piece 46 which becomes an edge part by making it stand-up.

  The die-cutting device 50 for punching and forming such a can mouth pouring guide tool 41 has a peripheral edge portion that becomes the guide wall piece 46, and becomes a fitting hole 43 or the like by being punched out. The can mouth pouring guide tool 41 is punched out from the synthetic resin sheet S in which the guide tool material 40 is arranged and formed in a state in which the bulging portion 40A having the base piece portion is provided.

  That is, the die-cutting device 50 is a synthetic resin sheet S in which guide material 40 is formed in which a bulging portion 40A formed in a bulging shape is formed after molding by vacuum molding or hot platen pneumatic molding. Is formed into a can mouth pouring guide 41 by punching the outer periphery of the lower die 51 placed on the upper surface and the outer periphery of the guide material 40 placed and set on the upper surface of the lower die 51 from the synthetic resin sheet S. The upper die 55 is moved up and down with respect to the lower die 51.

  The upper die 55 includes a punching blade 56 disposed along the outer shape of the can mouth pouring guide tool 41 so as to punch the outer periphery of the guide tool material 40 (can mouth pouring guide tool 41), and a guide tool. A cut having a biting end 58 which is crossed by a punching blade 56 corresponding to a cutting position provided at an edge portion of the material 40 to be cut off of the bulging portion 40 </ b> A and whose tip protrudes from the cutting edge of the punching blade 56. Corresponding to the cutting edge 57, the cutting position of the edge of the guide material 40, the cutting blade 59 disposed between the cutting blades 57, and the hole punching blade 61 for punching the fitting hole 43 from the bulging portion 40A The punching blade 56, the cutting blade 57, the cutting blade 59, and the hole punching blade 61 are disposed so as to protrude from the lower surface of the upper die 55. In the figure, reference numeral 49 denotes a buffer means.

  Further, the upper die 55 is provided with a cutting blade 62 that opens and cuts the tip of the pouring guide rod 44 to form the pouring groove port 47, and this cutting blade 62 is provided at the bulging portion 40 </ b> A of the guide tool material 40. A portion corresponding to the tip portion of the extraction guide rod 44 is separated from the main body portion of the extraction guide rod 44 and is cut off. Therefore, the cutting blade 62 is formed from a plane provided with a cutting blade edge 63 for cutting the edge portion of the bulging portion 40A and a cutting blade edge 64 for cutting off the wall piece of the bulging portion 40A in the same manner as the cutting blade 57. It looks almost Ω-shaped.

  When using the die cutting apparatus 50 in the third embodiment configured as described above, the guide tool material 40 in which the bulging portion 40A is formed is arranged on the lower mold plate material on which the lower mold 51 is arranged. The synthetic resin sheet S is loaded and placed and set so that the bulging portion 40A covers the bulging portion support block 52. Then, the upper mold plate material on which the upper mold 55 is arranged descends from above, and the punching blade 56, the cutting blade 57, the cutting blade 59, the hole punching blade 61, The cutting blade 62 is pressed into the synthetic resin sheet S in a bite manner. With the punching blade 56, the peripheral edge of the guide tool material 40 (can mouth pouring guide tool 41) is punched and separated from the synthetic resin sheet S. At the same time, the cutting blade 57 enters the cutting guide groove 53 to form the cut 4 in the edge portion of the bulging portion 40A, and the cutting blade 56 cuts out the edge portion in the bulging portion 40A, In the punching blade 61, the wall piece of the bulging portion 40A is cut out in a circular shape so as to be the fitting hole 43, and in the cutting blade 62, the tip portion of the bulging portion 40A is cut out together with the edge portion to form the pouring groove 47. The edge portion of the bulging portion 40A that is not cut is used as the guide wall piece 46.

  The can outlet extraction guide 41 formed in this way can be used as an extraction tool when the liquid material is directly extracted from the liquid can L by being attached to the can of the liquid can L. Compared to molding by injection molding, a large amount can be provided at a low cost.

  Further, the edge cutting method, the edge cutting method, and the die-cutting device for the synthetic resin molded article and the like according to the present invention are not limited to the synthetic resin molded article arranged and formed on the synthetic resin sheet. Various moldings that can be used for cutting the edges of the bulges of paper molded products that are molded from paper sheets, and that have bulges that are similarly molded into sheet materials made of various materials. You can target goods.

S ... Synthetic resin sheet B ... Storage container F ... Furniture L ... Liquid can 1 ... Cover cover 2 ... Cover main body 3 ... Child cover 4 ... Cut 5 ... Relief groove 6 ... Cover tool material 7 ... Swelling part 9 ... Buffering means 10 ... Die cutting device 11 ... Lower die 12 ... Swelling support block 13 ... Cutting guide groove 15 ... Upper die 16 ... Punching blade 17 ... Cutting blade 18 ... Biting edge 19 ... Folding line blade 20 ... Protection Material 21 ... Protective device 22 ... Protective device main body 23 ... Protective edge piece 29 ... Buffer means 30 ... Die mold 31 ... Lower mold 32 ... Bulge support block 33 ... Incision guide groove 35 ... Upper mold 36 ... Punching blade 37 ... Cutting blade 38 ... Cutting end 39 ... Cutting blade 40 ... Guide tool material 41 ... Can mouth pouring guide tool 42 ... Guide tool body 43 ... Fitting hole 44 ... Pouring guide rod 45 ... Height adjusting section 46 ... Guide wall piece 47 ... Pumping slot 49 ... Buffer means 50 ... Pulling device 51 ... Lower mold 52 ... Bulding section support block 53 ... Cutting guide groove 55 ... Upper die 56 ... Punching blade 57 ... Cutting blade 58 ... Biting edge 59 ... Cutting blade 61 ... Hole punching blade 62 ... Cutting blade 63 ... Cutting blade edge 64 ... Cutting edge

Claims (7)

Punching blades placed on the upper die from the sheet material that is placed and set by placing on the lower die where the molded product material with the bulging part formed by vacuum forming, hot platen pressure forming, etc. is arranged When the molded product is punched and separated by pressing down against the lower mold, a cut is formed at the edge of the bulging part of the molded product material at the same time as the punching, and molding is performed on the outer periphery of the bulging part. The cutting blade for forming the cut is cross-fixed to the punching blade for punching the product, and the bulging portion of the sheet material covered on the lower die is supported from the inside, The punching blade punches the outer periphery of the bulging part, and the cutting blade has a cutting edge formed on the inner edge portion located inside the punching blade and a substantially acute biting end formed at the tip. synthetic resin molding which is characterized in that to form the cut to enter the door on the edge portion of the bulging out part The method of the edge cutting. Punch placed in the upper die from the sheet material that is placed and set by placing the molded product material with the bulging part formed by vacuum molding, hot platen pressure molding, etc. When punching and separating each molded product by lowering the blade against the lower mold, the cutting blade is cross-fixed to the punching blade that punches the outer periphery of the bulging portion of the molded product material, and the bulging portion At the time of punching the outer periphery of the cutting edge, the cutting edge is formed with an edge edge formed at the inner edge portion located inside the punching blade and a substantially acute biting end formed at the tip as well. A method for cutting an edge of a synthetic resin molded article or the like, wherein the edge is made to enter and a cut is formed in the edge. Punching blade that punches the outer periphery of the bulge in the molded product material when the molded product is punched and separated from the sheet material on which the molded product material in which the bulge is formed by vacuum molding, hot platen, pressure molding, etc. In addition, the cutting blade that enters the edge portion of the bulging portion in the molded product material and cross-fixes the cutting blade, this cutting blade has a cutting edge on the inner edge portion located inside the punching blade, An edge cutting device for a synthetic resin molded product or the like, characterized in that a substantially acute biting end is formed at the tip . A lower mold that is placed and set by covering a sheet material on which a molded product material in which a bulge is formed by vacuum molding, hot platen pressure molding, or the like is placed, and an expansion of the sheet material on the lower mold It consists of an upper die that punches the outer periphery of the protruding portion and moves up and down relative to the lower die so as to separate the molded product from the sheet material. The upper die has a punching blade for punching the outer periphery of the bulging portion of the sheet material, A cutting blade that forms a cut at the edge portion of the protruding portion is disposed, the cutting blade is cross-fixed to the punching blade, and the inner edge portion located inside the punching blade serves as a cutting edge. In addition, the tip that protrudes from the cutting edge of the punching blade is a bite end that is formed in a substantially acute shape, and the lower mold is provided with a bulge support block that supports the bulge of the sheet material from the inside. The swelled support block is provided with a notch guide groove for guiding the notch blade into the synthetic tree. Molding Hinto of cutting die apparatus. The die cutting apparatus for a synthetic resin molded product or the like according to claim 3 or 4, wherein the cutting blade intersects the punching blade in a substantially orthogonal state.   6. A die cut of a synthetic resin molded product or the like according to claim 4 or 5, wherein a crease line blade for forming streak-like undulating grooves is arranged on the upper surface of the lower mold bulge portion support. apparatus.   The cutting blades arranged in the upper mold are provided in pairs at opposite positions of the edge part in the bulging part, and a cutting blade for cutting out the base part of the bulging part is arranged between the cutting blades A die-cutting device for a synthetic resin molded product or the like according to any one of claims 4 to 6.

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