JP2014034091A - Trimming die device in punching machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a trimming die device in a punching machine, which can be easily manufactured, does not cause a malfunction, and can be produced at a low cost.SOLUTION: The punching machine forms a desired blank by inserting a sheet material between a trimming die and a face plate and punching the sheet material. In the punching machine, the trimming die 11 is constituted of an object obtained by fixing a cutting blade 12 composed of a belt-like blade bent-molded in accordance with a shape of the blank to a trimming die substrate 13, and the trimming die substrate has a sandwich structure of sticking respective plate materials together, by arranging a resin plate material 19 between a plurality of wooden plate materials 18 or inversely arranging the wooden plate materials 18 between a plurality of resin plate materials 19, and in the trimming die substrate of the sandwich structure, penetrated-grooves 21a and 21b of penetrating the wooden plate material and the resin plate material which are stuck together are formed as fixing means of the cutting blade.

Description

  The present invention relates to a punching die device in which a sheet material is inserted between a punching die and a face plate and punched to form a desired blank, and the punching die is improved. is there.

  A box or the like used for packaging is manufactured by punching a sheet material to form a blank and bending it, and a punching die is used to punch the sheet material to form a blank. The punching die includes a punching blade for forming a blank and a pressing rule for attaching a crease, and a punching machine is configured by combining the punching die and the face plate. The above-mentioned punching die has a cutting blade made of a band-shaped blade bent according to the shape of the blank, and is placed on the punching die substrate. There is a problem that the madness goes out depending on the direction, or the madness is caused by the change in humidity.

  When the prior art was investigated, Japanese Patent Laid-Open No. 10-113896 was found. This is a base plate for the punching blade made of veneer material and the like, and the punching blade is fixed to the fixing groove. A metal face plate is detachably stacked on the back side, and the base side of the punching blade is placed on the base plate. It has the composition of mounting across the face plate. In the present invention, the bolts penetrating the metal face plate are tightened and overlapped with the base plate, and the object is to facilitate the removal of the punching blade. That is, although the face plate is made of metal, an effect of greatly increasing the structural strength of the base plate cannot be expected only by bolting to the back side of the veneer material. This is because the metal face plate is not used for structural strengthening in the above invention.

  In addition, there exists an integrated type which uses the metal board | plate material on both surfaces in the other cutting die currently used. This is because the metal plates are integrally bonded to both sides of the veneer plate, it does not go out of order due to the mounting method, and it does not go out of order due to changes in humidity, but it also takes manufacturing man-hours and is more expensive than anything. You can't use it for anything.

Japanese Patent Laid-Open No. 10-113896

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a punching die device in a punching machine that is easy to manufacture and that is not crazy and can be produced at low cost. Another object of the present invention is to provide a punching device in a punching machine that can obtain a significantly higher strength than a punching die made of only a conventional veneer material while using a wooden board material such as a veneer material. That is.

  In order to solve the above-described problems, the present invention provides a punching machine in which a sheet material is inserted between a punching die and a face plate and punched out to form a desired blank. It consists of a cutting blade consisting of a band-shaped blade that is bent and fixed to a die substrate, and the die substrate is a resin plate material arranged between a plurality of wooden plates or a plurality of resin plates. It has a sandwich structure in which wooden boards are placed between them and the boards are bonded together. The sandwiched die board penetrates the laminated wooden board and the resin board as a means for fixing the cutting blade. A means of forming a through groove is taken.

  The punching machine, which is the subject of the present invention, has a movable platen arranged to face the fixed platen, and a punching die is arranged on either the fixed platen or the movable platen, and a face plate on either one of them. Will be placed. The punching machine generally has a punching die called a Thomson die, but a process of inserting a sheet material between the punching die and the face plate and punching it to form a desired blank. Will be implemented. This may be considered common with the conventional one.

  The punching die is provided with a cutting blade for cutting the sheet material, a pressing rule for making a crease on the sheet material, and also a protrusion for pressing the sheet material. With such a configuration, the punching die has a configuration for punching the sheet material in accordance with the shape of the blank. Specifically, the punching die in the present invention is obtained by fixing a cutting blade composed of a strip-like blade that is bent and shaped in accordance with the shape of a blank to a punching die substrate. This can also be considered basically the same as the conventional one.

  The die-cut substrate has a sandwich structure in which a resin plate is disposed between a plurality of wooden plates, or a wooden plate is disposed between a plurality of resin plates, and the respective plates are bonded together. . Since it is a sandwich structure, a resin plate must be sandwiched between wooden plates, or conversely, a wooden plate must be sandwiched between resin plates. And, by arranging the resin plate material between the wooden plate materials and bonding them together, the wooden plate material is guaranteed flatness as an industrial product even if the effect of temperature and humidity works on the wooden plate material, In addition, the resin plate material having flatness equal to or higher than the same acts against the influence of temperature and humidity so as not to cause a deviation.

  A punching die substrate having a sandwich structure is provided with a through-groove that penetrates a bonded wooden board and resin board as fixing means for the cutting blade. The through groove has a groove width slightly smaller than the plate thickness of the cutting blade, and when the cutting blade is press-fitted into the through groove, a desired fixing force generated by the difference between the plate thickness and the groove width is obtained. The cutting blade needs to be exchangeable, and it may be considered that the fitting in machining corresponds to a forced fitting.

  The die-cut substrate has a five-layer structure in which three layers of wooden plates are alternately arranged between and on both sides of at least two resin plates, and the resin plates are made of ABS resin or PC resin. The wood board is preferably composed of plywood. Further, for example, one resin plate material sandwiched between two wooden plate materials on both sides is taken as one set, and a combination of the two sets has a multilayer structure with a thick intermediate wooden plate material.

  It is also desirable that the through-grooves that penetrate the bonded wooden board and resin board are processed by a laser processing machine. 2. Description of the Related Art Processing of a through groove by a laser processing machine has been conventionally used for forming a through groove in a die made only of a veneer material. When a metal plate material is used for a die substrate, although depending on the form, it takes time to form a through groove by an end mill, whereas in the case of the present invention, laser processing is required. Since it can be processed with a machine, it is easy to manufacture and the cost is only the difference in material costs, so it is not much different from a veneer die-cut substrate.

  Since the present invention is configured as described above and has a sandwich structure of a wooden board and a resin board, it is easy to manufacture and has the effect of being inexpensive and capable of being produced at low cost. Further, according to the present invention, while using a wooden plate material such as a veneer material, by using a resin plate material together, it is possible to obtain a significantly higher strength than a conventional die made of only a veneer material, and , The durability is improved.

  Hereinafter, with reference to the illustrated embodiment, a punching die device in the punching machine of the present invention will be described in detail. FIG. 1 relates to a punching die device 10 used in a punching machine according to the present invention. The punching die 11 fixes a cutting blade 12 formed of a strip-like blade bent according to the shape of a blank 14 to a punching die substrate 13. Made up of. The example of FIG. 1 is illustrated as a two-piece punching for punching two blanks 14 shown in FIG. 3, and the shape of the cutting blade 12 in FIG. 1 is symmetrical to the shape of the blank 14 in FIG. become. The illustrated blank 14 is for making a container, and the container has a rectangular parallelepiped shape as is apparent from the developed view of FIG.

  The cutting blade 12 is formed by bending a band-shaped blade, that is, a blade plate made of a band-shaped metal material, in accordance with the shape of the developed container, and has a shape that matches the outer shape of the blank 14. FIG. 2 is an enlarged view of part II of FIG. 1 and shows details of the cutting blade 12. In FIG. 2, the cutting blade 12 is represented by a bent line having a center line, and is distinguished from the stamped rule 15 having no center line. The above-mentioned ruled line 15 is provided in the punching die 1 for attaching the crease 16 to the blank 14, and is cut out at a portion intersecting with the cutting blade 12 so as not to hinder cutting by the cutting blade 12. An escape portion 15a is provided (see FIG. 2).

  The cutting blade 12 is implanted and fixed to the punching die substrate 13 together with the stamped rule 15 on the base side 17a, 17b. The die-cut substrate 13 in the present invention has a sandwich structure in which a plurality of resin plate materials 19 are alternately arranged between a plurality of wooden plate materials 18 and the plate materials 18 and 19 are bonded together. In the illustrated example, the die-cutting substrate 13 is formed by sandwiching a single resin plate 19 between two wooden plates 18 on both sides to form a set of plates 20, and bonding these two sets together. The portion of the wooden board 18 has a thick multilayer structure (see FIG. 5). In the multilayer structure of the present invention, one resin plate 19 is arranged between two wooden plates 18 or one wooden plate 18 is arranged between two resin plates 19. As can be arbitrarily designed.

  The die-cut substrate 13 in the present invention is, for example, the above-described set of plate materials 20 so that the minimum unit to be bonded by placing one resin plate material 19 between two wooden plate materials 18 is attached. It is formed. In such a set of plate materials 20, the wooden plate material 18 and the resin plate material 19, which are ensured to be flat as an industrial product having a multilayer structure, are bonded together, and the resin plate material 19 resists the influence of temperature and humidity, and is made of wood. Even if the plate member 18 is affected by temperature and humidity, it acts so as not to be distorted. The resin plate material 19 is made of ABS resin or PC resin. Moreover, the wooden board | plate material 18 can use the plywood used for the conventional die-cut board | substrate.

  The bonded wooden plate 18 and resin plate 19 are provided with through grooves 21 a penetrating the integrated wooden plate 18 and resin plate 19 as fixing means for the cutting blade 12. The through groove 21a can be processed by a laser processing machine. In particular, by forming with a laser processing machine, the through-groove 21 can be formed accurately, the processing time can be shorter than any other method, and high accuracy, high quality and low cost can be achieved at the same time. The through groove 21b for fixing the ruled line 15 can also be processed by a laser processing machine in the same manner as the through groove 21a.

  FIG. 4 shows the punching machine 22. This punching machine 22 has a movable platen 24 arranged to face the fixed platen 23, the above-described punching die 11 is arranged on the fixed platen 23, and a face plate 25 is arranged on the movable platen 24. ing. The punching die 11 on the fixed platen 23 side and the face plate 25 on the movable platen 24 side are detachably attached by mechanisms not shown. The punching die 11 is a so-called Thomson die, which is made of a material having a strength that can withstand the blanking operation of the blank 14 and is arranged in a pattern that matches the outer shape of the blank 14 to be punched on one surface thereof. And the push ruler 15 is implanted along the design fold line. The ruled line 15 enters a concave groove line 26 provided on the face plate 25 and attaches a folding line 16 to the blank 14 made of a sheet material.

  Members 27 and 28 called protrusions are attached to both sides of the cutting blade 12 and the stamped rule 15 (see FIGS. 1, 4 and 5). The protrusions 27 and 28 are made of an elastic material such as cork or sponge, and fix the sheet material S at the time of punching. There are various ways of providing the protrusions 27 and 28, and the one shown in FIG. 1 is merely an example. In each figure, 29 is a fixing member, and 30 is a positioning piece for positioning, which engages with an engaging portion provided on the face plate 25 side.

  Next, the operation of the present invention having the above configuration will be described. First, before starting the operation of the punching machine 22, the sheet material S is arranged on the movable platen 24, and then the movable platen 24 moves toward the fixed platen 23. As the movable platen 24 approaches, the protrusions 27 and 28 press and restrain the sheet material S, the cutting blade 12 starts cutting the sheet material, and the pressing ruler 15 presses the sheet material S almost simultaneously, and the groove It will be pushed into the muscle 26.

  When the movable platen 24 is moved by a predetermined stroke, as a result, the folding line 16 is formed on the sheet material S by the crease 15, and the sheet S material is cut by the cutting blade 12. As can be understood from the blank 14 shown in FIG. 3, it can be seen that a plurality of adjacent fold lines 16 are not continuous at the end portions (however, FIG. 3 is exaggerated and the fold lines 16 are connected to each other). In fact, there are only a few non-continuous portions 16a formed at the end of the).

  According to the present invention configured as described above, the fixed platen 23 cuts the sheet material S with the cutting blade 12 when the movable platen 24 is raised, and the punching operation for attaching the crease 16 to the sheet material S with the push ruler 15. Each time, a considerable pressure is applied. The cutting blade 12 must be replaced when the number of punches reaches a certain limit. However, when the cutting blade 12 is extracted from the through-grooves 21a and 21b and press-fitted, a considerable external force due to drawing and press-fitting is applied. As a result, a large stress is generated around the through grooves 21a and 21b. The punching die device 10 of the present invention must withstand such stress, but the punching die 11 has a structure in which a wooden board 18 and a resin board 19 are sandwiched, and is easily affected by temperature and humidity. Even when the wooden plate 18 is used, the resin plate 19 resists the stress, so that it is considered that the deformation can be sufficiently prevented. Further, in the case where the punching die substrate 13 is made of only a wooden board, the cutting blade 12 and the push ruler 15 are repeatedly attached and detached, so that when the press-fitted into the through grooves 21a and 21b, loosening occurs early, and the necessary fixing force However, according to the sandwich structure of the present invention, it is possible to delay the occurrence of looseness.

It is a front view which shows the example about the punching die apparatus in the punching machine which concerns on this invention. It is a front view which expands and shows the Yago II part of FIG. It is an expanded view which shows an example of the blank manufactured with the apparatus of this invention. It is related with the apparatus of this invention, and is sectional drawing shown as a punching machine combined with the punching die. It is sectional drawing which expands and shows a die-die board | substrate similarly.

DESCRIPTION OF SYMBOLS 10 Punching device 11 Punching die 12 Cutting blade 13 Punching die substrate 14 Blank 15 Ruled line 16 Bending line 17a, 17b Base side 18 Wooden board material 19 Resin board material 20 A set of board materials 21a, 21b Through groove 22 Punching machine 23 Fixed platen 24 Movable plate 25 Face plate 26 Groove 27, 28 Projection 29 Fixed member 30 Positioning piece

Claims (3)

In a punching machine that inserts a sheet material between a punching die and a face plate and punches it to form a desired blank,
The punching die consists of a cutting blade consisting of a strip blade that is bent to match the shape of the blank, fixed to the punching substrate,
The above-mentioned die-cut substrate has a sandwich structure in which a resin plate is arranged between a plurality of wooden plates, or a wooden plate is arranged between a plurality of resin plates, and each plate is bonded. ,
A die-cutting apparatus in a punching machine in which a punching die substrate having a sandwich structure is formed with a through-groove penetrating a laminated wooden board and a resin board as fixing means for a cutting blade. The die-cut substrate has a five-layer structure in which three layers of wooden plates are alternately arranged between and on both sides of at least two resin plates, and the resin plates are made of ABS resin or PC resin. 2. The punching device in a punching machine according to claim 1, wherein the wooden board is made of plywood. The punching device in a punching machine according to claim 1 or 2, wherein the through groove penetrating the bonded wooden board and resin board is processed by a laser processing machine.

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