JP3190088U - Alignment jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a positioning jig capable of recovering to a usable state by a simple repair work even if the number of times of insertion / removal operation of a positioning pin increases due to repeated execution of a transfer method. SOLUTION: A positioning pin that engages with a female face plate side opening 16 to support a female face plate when aligning a ruled pressing blade 3 of a punching die 1 with a ruled line groove 13 of a female face plate 12. A sleeve 21 that holds the positioning pin 22 inserted into the pin insertion opening 23, which is a positioning jig 20 that holds the 22 in the substrate side opening 6 formed in the punched substrate 2. The sleeve is press-fitted into the substrate-side opening 6 and the positioning pin 22 is inserted and held into the pin insertion opening 23 of the sleeve. It can be restored to a usable state simply by replacing the sleeve. [Selection diagram] FIG. 7

Description

  The present invention relates to an alignment jig used when aligning a female face plate with respect to, for example, a punching die for paper containers, and in particular, a position where alignment is performed using a positioning pin that engages with the female face plate. This relates to the alignment jig.

  For example, a packaging container is assembled by punching a raw material sheet made of paper, cardboard, resin, or the like, and bending or pasting a required portion of the obtained blank material having a predetermined shape. The packaging container assembled in this way is lightweight and easy to carry, and is widely used in a wide range of fields such as the food industry, the cosmetics industry, and the daily necessities industry.

The above punching process is performed by the cooperation of the punching die and the receiving die.
The punching die is configured by implanting a cutting blade and a ruled pressing blade on a substrate having a predetermined plate thickness. On the other hand, the receiving mold is configured by pasting a female face plate on a receiving plate (cutting plate). Here, a ruled line groove corresponding to the ruled pressing blade is provided on the surface of the female face plate, and an adhesive layer is provided on the back surface thereof. Then, by pressing the receiving die against the punching die in a state where the raw material sheet is sandwiched between the punching die and the receiving die, a blank material of a predetermined shape is cut out from the raw material sheet by a cutting blade, and the blank material is required. A crease is formed at the location by the cooperation of the ruled blade and the ruled groove.

In order to satisfactorily form the above crease line, it is necessary to accurately correspond the ruled pressing blade and the ruled line groove. As a method for realizing this, the “transfer” comprising the following first step and second step is performed. There is what is called "the law".
(First step): The female face plate is aligned with the punching die by using an alignment jig so that the ruled pressing blade and the ruled line groove are aligned.
(Second step): The receiving plate is brought close to the punching die in which the female face plate is attached via the alignment jig, and the upper surface of the receiving plate is pressed against the adhesive layer of the female face plate.
According to this transfer method, the female face plate can be attached and fixed at a predetermined position on the receiving plate in which the ruled line groove is accurately associated with the ruled pressing blade.

  As an alignment jig used in the above transfer method, for example, there is one proposed in Patent Document 1.

Utility Model Registration No. 3155295

The alignment jig according to Patent Document 1 includes a groove, a pair of protrusions, and an adhesive surface portion to which an adhesive is applied. In this positioning jig, a pair of protrusions are inserted into the left and right concave grooves formed in advance on both sides of the central concave groove (ruled groove) of the female plate (female plate) via the adhesive surface portion. After adhering to the female plate, the groove is pushed into the stamping die (crease stamping blade), so that the first step in the above transfer method, that is, punching so as to align the stamp and the central groove The step of aligning the female plate with the mold can be easily performed.
After this first step, the second step in the above transfer method, that is, the face plate (receiving plate) is brought closer to the punching die in which the female plate is attached via the alignment jig, If the process of pressing the upper surface of the face plate against the adhesive layer of the mold plate is carried out, the female mold plate can be fixed by sticking to the predetermined position on the cutting plate with the central concave groove accurately corresponding to the ruled line. it can.
When this second step is completed, the alignment jig finishes its role and obstructs the subsequent punching process, and therefore the alignment jig is peeled off from the female plate.

  However, since the alignment jig according to Patent Document 1 is bonded to the female plate via the bonding surface portion, there is a problem in that it takes time and labor to peel off from the female plate.

  Therefore, an alignment jig using positioning pins has been put into practical use. Here, the positioning pin is configured to engage with a female face plate side opening formed in advance on the female face plate to support the female face plate.

  According to the conventional alignment jig using the positioning pin, by holding the positioning pin in the substrate side opening formed in advance in the punching type substrate, the ruled pressing blade and the ruled line groove are aligned. The female face plate can be easily aligned with the punching die. In addition, if a force that pulls the female face plate away from the positioning pin is applied, the engagement between the positioning pin and the female face plate side opening is easily released, so that the alignment jig and the female face plate can be easily separated. it can.

  Also in this conventional alignment jig, when the first step and the second step in the above-described transfer method are completed, the role is finished and the subsequent punching process is obstructed. Therefore, the positioning pin is pulled out from the opening on the substrate side. It will be removed from the punching die.

By the way, in this conventional alignment jig, the number of operations of inserting / removing the positioning pins with respect to the substrate side opening increases as the above transfer method is repeated.
For this reason, the substrate side opening is deformed and spreads, and finally the positioning pin cannot be held. Since it is difficult to repair the substrate-side opening that has once expanded, it is difficult to use the alignment jig.

  The present invention has been made in view of the above-described problems, and even if the number of positioning pin insertion / removal operations increases as the transfer method is repeatedly performed, it can be used with simple repair work. An object of the present invention is to provide an alignment jig that can be recovered.

In order to achieve the above object, an alignment jig according to the present invention comprises:
With respect to a punching die in which a cutting blade for cutting a blank material of a predetermined shape from a raw material sheet and a ruled pressing blade for forming a crease line in the blank material cut by the cutting blade are embedded in a substrate having a predetermined plate thickness, the ruler When aligning the female face plate having the crease groove corresponding to the pressing blade so that the crease pressing edge and the crease groove are aligned, the female face plate is engaged with a female face plate opening formed in advance in the female face plate. A positioning jig for supporting the female face plate in a substrate-side opening formed in advance on the punching die substrate,
A sleeve having a pin insertion opening into which the positioning pin is removably inserted and holding the positioning pin inserted into the pin insertion opening, and press-fitting the sleeve into the substrate side opening. At the same time, the positioning pin is inserted into the pin insertion opening of the sleeve, so that the positioning pin is held in the substrate side opening through the sleeve. 1 device).

  In the present invention, the pin insertion opening of the sleeve has a hexagonal shape having six inner sides, and the pin insertion opening has three engagement protrusions so as to grasp the positioning pin from three directions. Preferably, it is formed on every other three inner surfaces of the six inner surfaces at an angular interval (second device).

  In the present invention, it is preferable that a plurality of locking projections are formed on the outer peripheral surface of the sleeve so as to bite into the inner peripheral surface of the substrate-side opening (third device).

In the positioning jig of the first device, the pin insertion opening is deformed and expanded as the number of times of the positioning pin insertion / removal operation with respect to the sleeve pin insertion opening increases due to repeated execution of the transfer method. Therefore, the positioning pin cannot be held by the sleeve.
According to the alignment jig of the first device, since the positioning pin is held via the sleeve in the opening on the substrate side formed in advance on the punching type substrate, the sleeve that cannot hold the positioning pin is removed. It can be restored to a usable state by simple repair work such as replacement.

  According to the positioning device of the second device, since the pin insertion opening of the sleeve has a hexagonal shape having six inner surfaces, the sliding resistance when the positioning pin is inserted into and removed from the pin insertion opening. Can be reduced. Further, since the three engaging projections are formed on the three inner surfaces every other one of the six inner surfaces at equal angular intervals so as to grip the positioning pin, by the aligning action by the three engaging projections The positioning pin can be reliably centered with respect to the pin insertion opening. Therefore, the positioning accuracy can be ensured, and the positioning pin can be inserted and removed more easily.

  According to the alignment jig of the third device, the plurality of locking projections formed on the outer peripheral surface of the sleeve bite into the inner peripheral surface of the substrate side opening, so that the sleeve is firmly pressed into the substrate side opening. Therefore, it is possible to reliably prevent the sleeve from unexpectedly falling out of the substrate side opening and the sleeve from rotating unexpectedly in the substrate side opening.

It is a top view which shows the punching die to which the alignment jig | tool which concerns on one Embodiment of this invention is applied, and is a mounting state figure of the alignment jig. It is a top view which shows the punching die to which the alignment jig | tool is applied, and is a non-mounting state figure of the alignment jig. It is the A section enlarged view of FIG. It is a figure which shows the receiving die used facing the punching die, (a) is a top view, (b) is the BB sectional drawing of (a). It is explanatory drawing of the punching process using the punching die and a receiving die. It is explanatory drawing (1) of a transfer method, and is a state figure which attached the female face board to the punching die via the alignment jig. It is explanatory drawing (2) of a transfer method, and is the state figure which has arrange | positioned the punching die to which the female face plate was attached via the positioning jig above the receiving plate. It is explanatory drawing (3) of a transfer method, and is the state figure which pressed the receiving plate against the female face plate. It is explanatory drawing (4) of a transfer method, and is a state figure by which the female face plate was affixed on the receiving plate.

Next, specific embodiments of the alignment jig according to the present invention will be described with reference to the drawings.
The embodiment described below is an example in which the alignment jig of the present invention is applied to a punching die that punches a raw material sheet made of, for example, paper, cardboard, or resin. In addition, a packaging container is assembled by bend | folding or sticking the required location of the blank material of the predetermined shape obtained by this punching process.

<Description of punching die>
As shown in FIG. 1, the punching die 1 to which the alignment jig 20 of this embodiment is applied includes a substrate 2 having a predetermined plate thickness.
The substrate 2 is provided with a band-shaped cutting blade 3 for cutting out a blank material having a predetermined shape from a raw material sheet, and a band shape for forming a crease in the blank material cut out by the cutting blade 3. A ruled cutting blade 4 having a rounded edge is implanted.
Further, in the substrate 2, necessary cushion materials 5 are appropriately disposed on both sides of the cutting blade 3, and the punched blank material can be detached from the cutting blade 3 by the elastic repulsive force of the cushion material 5. It can be done.

  As shown in FIG. 2, necessary (four in this example) substrate-side openings 6 for mounting the alignment jig 20 are formed in the substrate 2 in a predetermined arrangement. Each of these substrate side openings 6 is a round hole opening penetrating the substrate 2, and a sleeve 21 described later is press-fitted into the substrate side opening 6.

<Description of receiving mold>
As shown in FIG. 4 (a), a receiving die 10 used in combination with the punching die 1 at the time of punching includes a receiving plate 11 called a cutting plate equipped in a punching machine (not shown). A female face plate 12 is affixed on the plate 11.

<Description of female face plate>
As shown in FIG. 4B, the female face plate 12 has a ruled line groove 13 corresponding to the ruled pressing blade 4 on the surface thereof and an adhesive layer 14 on the back surface thereof. The adhesive layer 14 is covered and protected with a release paper 15 (see FIG. 6) when not in use.
The female face plate 12 is provided with a round hole-shaped female face plate side opening 16 that engages with a positioning pin 22 described later so as to correspond to the arrangement of the substrate side opening 6.

Examples of the female face plate 12 include a film face plate and a CAD face plate.
The film face plate is drawn on a film sheet based on the CAD data for manufacturing the punching die 1, and a trapezoidal tape having a gentle ridge line of a suitable length is attached and fixed at a position corresponding to the ruled pressing blade 4. A recess corresponding to the ruled line groove 13 is formed, and a portion corresponding to the cutting blade 3 is manufactured by cutting the film sheet.
The CAD face plate is a ruled line at a position corresponding to the ruled pressing blade 4 by an NC processing machine from CAD data for manufacturing the punching die 1 on a base material sheet such as bake, PET, paper, brass, aluminum, stainless steel, etc. A groove corresponding to the groove 13 is formed by cutting, and a portion corresponding to the cutting blade 3 is manufactured by cutting the base sheet.

As shown in FIG. 5, the punching process by the cooperation of the punching die 1 and the receiving die 10 is performed as follows by placing the punching die 1 on the upper side and the receiving die 10 on the lower side. Is called.
After inserting the raw material sheet W between the punching die 1 and the receiving die 10, the receiving die 10 is raised and pressed against the punching die 1 with the raw material sheet W sandwiched therebetween. As a result, a blank material having a predetermined shape is cut out from the raw material sheet W by the cutting blade 3, and a crease is formed at a required portion of the blank material by cooperation of the ruled pressing blade 4 and the ruled line groove 13.

  Next, the alignment jig 20 of the present embodiment will be described below mainly using FIG. 3 and FIG.

<Outline of alignment jig>
As shown in FIG. 7, the alignment jig 20 includes a sleeve 21 that is press-fitted into the substrate side opening 6 and a positioning pin 22 that engages with the female face plate side opening 16.

<Description of sleeve>
As shown in FIG. 3, the sleeve 21 is made of a resin-made cylindrical member, and a pin insertion opening portion having six inner side surfaces opened in a hexagonal shape in the center portion around the axis thereof. 23 is formed to extend in the axial direction. The shape of the pin insertion opening 23 is not limited to a hexagonal shape, and may be a triangular shape, a quadrangular shape, a pentagonal shape, or a polygonal shape of a heptagonal shape or more.
The pin insertion opening 23 is set to a size that allows the positioning pin 22 to be inserted and removed.
In the pin insertion opening 23, three engaging projections 24 are formed on every other three inner surfaces of the six inner surfaces at equal angular intervals so as to grasp the positioning pin 22 from three directions. The engagement protrusion 24 is elongated and extends linearly along the axial direction of the sleeve 21.
A plurality (four in this example) of locking protrusions 25 are formed on the outer peripheral surface of the sleeve 21 so as to bite into the inner peripheral surface of the substrate side opening 6. These locking projections 25 are arranged at equiangular intervals in the circumferential direction of the sleeve 21, and are elongated in a line shape along the axial direction of the sleeve 21.

  In the sleeve 21, the pin insertion opening 23 has a hexagonal shape having six inner surfaces, so that the sliding resistance during the insertion / removal operation of the positioning pin 22 with respect to the pin insertion opening 23 can be reduced. Further, since the three engaging projections 24 are formed on every other three inner surfaces of the six inner surfaces at equal angular intervals so as to grasp the positioning pin 22, the adjustment by the three engaging projections 24 is performed. The centering of the positioning pin 22 with respect to the pin insertion opening 23 can be reliably performed by the heart action. Therefore, the positioning accuracy can be ensured and the positioning pin 22 can be inserted and removed more easily.

<Description of positioning pins>
As shown in FIG. 7, the positioning pin 22 includes a pin body 22a having a predetermined shaft diameter that can be inserted into the pin insertion opening 23 from the base end portion to the intermediate portion, and the distal end side of the pin body 22a. Further, an engaging portion 22c that is engaged with the female face plate side opening portion 16 in a press-fitted state via a shaft neck portion 22b having a smaller diameter than the pin main body 22a is integrally provided.
A cushion material 26 is attached to the shaft neck portion 22b. When the cushioning member 26 is engaged with the engaging portion 22c and the female face plate side opening 16 by press-fitting operation, the female face plate 12 exceeds the engaging portion 22c with respect to the positioning pin 22. It serves to elastically regulate the position so that it does not fit.

  In the alignment jig 20 configured as described above, the sleeve 21 is press-fitted into the board-side opening 6, and the positioning pin 22 is inserted into the pin insertion opening 23 of the sleeve 21. The positioning pin 22 is held in the substrate side opening 6 via the sleeve 21.

  Next, a transfer method using the alignment jig 20 will be described below with reference to FIGS.

  First, as shown in FIG. 6, the punching die 1 with the alignment jig 20 attached is inverted upward, and the positions of the engaging portion 22 c of the positioning pin 22 and the female face plate side opening portion 16 are set. In the combined state, the female face plate 12 is pushed into the positioning pin 22 by the cushion material 26 until the pushing position is regulated, and the engaging portion 22c and the female face plate side opening portion 16 are fitted and engaged by press-fitting operation. . Accordingly, the female face plate 12 is attached to the punching die 1 in a state where the female face plate 12 is positioned with respect to the punching die 1 so that the ruled pressing blade 4 and the ruled line groove 13 are aligned.

  Next, after peeling off the release paper 15 on the back surface of the female face plate 12, as shown in FIG. 7, the punching die 1 with the female face plate 12 attached is turned downward and attached to a not-shown punching apparatus. And it arrange | positions in the upper position of the receiving plate 11. FIG. At this time, the positioning pin 22 that is engaged with the female face plate side opening 16 to support the female face plate 12 is elastic of the engaging protrusion 24 when the sleeve 21 is inserted into the pin insertion opening 23. It is held by the action of the elastic restoring force accompanying the deformation and does not fall off due to its own weight of the female face plate 12 or the like.

  Next, as shown in FIG. 8, the receiving plate 11 is raised and brought closer to the punching die 1 in which the female face plate 12 is attached via the alignment jig 20, and the female face plate 12 is bonded. The upper surface of the receiving plate 11 is pressed against the agent layer 14. As a result, the female face plate 12 is affixed and fixed on the receiving plate 11 at a predetermined position where the ruled groove 13 is accurately associated with the ruled pressing blade 4, thereby completing the receiving mold 10.

  Next, as shown in FIG. 9, when the receiving plate 11 to which the female face plate 12 is affixed and fixed is lowered, a pulling force acts between the positioning pin 22 and the female face plate 12, and the engaging portion 22 c The engagement with the female face plate side opening 16 is released.

  When all the steps shown in FIG. 6 to FIG. 9 are completed, the alignment jig 20 finishes its role and obstructs the subsequent punching process. Therefore, the positioning pin 22 is pulled out from the sleeve 21 and removed from the punching die 1. become.

<Effect>
In the alignment jig of the present embodiment, as the number of operations of inserting / removing the positioning pin 22 with respect to the pin insertion opening 23 of the sleeve 21 increases by repeating the transfer method shown in FIGS. The pin insertion opening 23 is deformed and widened, and the positioning pin 22 cannot be held by the sleeve 21.
According to the alignment jig 20 of the present embodiment, the positioning pin 22 is held through the sleeve 21 in the substrate-side opening 6 formed in advance on the substrate 2 of the punching die 1. It can be restored to a usable state by a simple repairing operation such as replacing the sleeve 21 that cannot be used.

  As mentioned above, although the positioning jig of the present invention has been described based on one embodiment, the present invention is not limited to the configuration described in the above embodiment, and the configuration is appropriately set within the scope not departing from the gist thereof. It can be changed.

  The alignment jig of the present invention has a characteristic that even if the number of positioning pin insertion / removal operations increases as the transfer method is repeated, it can be restored to a usable state by simple repair work. Therefore, for example, it can be suitably used for the purpose of aligning the female face plate with respect to the punching die for paper containers.

DESCRIPTION OF SYMBOLS 1 Punching die 2 Substrate 3 Cutting blade 4 Ruled pressing blade 6 Substrate side opening 12 Female face plate 13 Ruled line groove 16 Female face plate side opening 20 Positioning jig 21 Sleeve 22 Positioning pin 23 Pin insertion opening 24 Engaging protrusion 25 Locking projection

Claims (3)

With respect to a punching die in which a cutting blade for cutting a blank material of a predetermined shape from a raw material sheet and a ruled pressing blade for forming a crease line in the blank material cut by the cutting blade are embedded in a substrate having a predetermined plate thickness, the ruler When aligning the female face plate having the crease groove corresponding to the pressing blade so that the crease pressing edge and the crease groove are aligned, the female face plate is engaged with a female face plate opening formed in advance in the female face plate. A positioning jig for supporting the female face plate in a substrate-side opening formed in advance on the punching die substrate,
A sleeve having a pin insertion opening into which the positioning pin is removably inserted and holding the positioning pin inserted into the pin insertion opening, and press-fitting the sleeve into the substrate side opening. In addition, the positioning jig is configured such that the positioning pin is held in the substrate side opening through the sleeve by inserting the positioning pin into the pin insertion opening of the sleeve.   The pin insertion opening of the sleeve has a hexagonal shape having six inner surfaces, and three engagement projections are equiangularly spaced in the pin insertion opening so as to grasp the positioning pin from three sides. The alignment jig according to claim 1, wherein the alignment jig is formed on every other three inner surfaces of the six inner surfaces. The alignment jig according to claim 1 or 2, wherein a plurality of locking projections are formed on an outer peripheral surface of the sleeve so as to bite into an inner peripheral surface of the substrate side opening.

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