JP2012056038A - Punching die - Google Patents

Abstract

【Task】
It is easy to mount strip blades, replace strip blades, change the punching outline design of strip blades, and have high strip blade mounting accuracy. Providing punches with a high ratio.
[Solution]
A rectangular inner member 11 whose outer periphery excluding the corners is a vertical surface, and a member that receives the inner member 11 therein, and an outer member 12 whose inner periphery excluding the corners is a vertical surface;
A corner member 13 that connects the inner member 11 and the outer member 12 at least at each corner, and each corner member 13 is formed with a corner blade 141, and the outer periphery excluding the corner 13 of the inner member 11; A side blade 142 is sandwiched between the outer periphery of the outer member 12 excluding the corners, and at least one of the inner member 11 and the outer member 12 is made of metal.
[Selection] Figure 1

Description

  The present invention relates to a punching die in which a strip-like blade used for trimming a film or the like is attached to a board, and it is easy to change the design of the strip-shaped blade punching work, belt blade replacement work, strip-blade cutting, This provides a punching die that has a high attachment accuracy, does not cause a deterioration in accuracy over time of the strip blade, and has a high ratio of recyclable constituent materials.

  In order to punch a film, a plate, etc., a punching die 9 shown in FIGS. 9A and 9B is known. In this punching die 9, a belt-like blade 92 is embedded in a board 91 made of plywood. In the die 9, a plurality of notches C are formed on the lower end side of the strip-shaped blade 92 as shown in FIG. Further, the board 91 is formed with a slit S penetrating between the front surface and the back surface, leaving a portion corresponding to the notch C.

  As shown in FIG. 9B, an elastic block 93 (having a height higher than the position of the cutting edge T) is provided along the inner and outer peripheries of the belt-like blade 92 to jump out the punched product and the remaining residue. It is done.

The die 9 has the following problems.
The punching die 9 has poor workability because the cutting edge of the band-shaped blade 92 is struck with a mallet or the like from the surface side of the board 91 and the band-shaped blade 92 is inserted into the slit S.
In the punching die 9, when the belt-like blade 92 is damaged, it is necessary to pull out the belt-like blade 92 from the slit S with pliers or the like, which takes time and labor.

  In the case of the punching die 9, when there is a design change in the punched product (for example, when the product is changed to a product with a hole for alignment), it is usually not possible to cope with the design change, and a new punching die 9 is manufactured. Must.

  In the punching die 9, the groove width of the slit S is set to a size (a value larger than the thickness of the strip blade 92) in which the strip blade 92 can be inserted. For this reason, an error in a direction perpendicular to the side surface of the belt-like blade 92 inserted in the slit S occurs, and the attachment accuracy of the belt-like blade 92 is lowered.

In the punching die 9, since the board 91 is a plywood, the groove width of the slit S is increased according to the number of punching, and the punching accuracy is lowered. In addition, since the band-shaped blade 92 has a notch C, the rigidity of the band-shaped blade 92 decreases as the number of punches increases.
When the die 9 is discarded, the board 91 made of plywood cannot be recycled, and forest resources are wasted. Moreover, in recent years when demands (demand) for punching large punched products (such as display films) are increasing, the situation in which plywood must be used is a serious problem.

  The present invention makes it easy to mount the band blade, replace the band blade, and change the design of the punching outline of the band blade, provides high band blade mounting accuracy, does not cause deterioration of the band blade over time, and can be recycled. An object of the present invention is to provide a die having a high ratio of various constituent materials.

The gist of the present invention is (1) to (5).
(1)
A punching blade for punching a thin body,
A rectangular inner member whose outer periphery excluding the corners is a vertical surface;
A member for receiving the inner member therein, and an outer member whose inner periphery excluding corners is a vertical surface;
A corner member that connects the inner member and the outer member at least at each corner;
With
Each corner member is formed with a corner blade,
A side blade is sandwiched between an outer periphery excluding the corner portion of the inner member and an inner periphery excluding the corner portion of the outer member,
At least one of the inner member and the outer member is made of metal,
A punching die characterized by that.

The corner blade is a Thomson blade or a machined blade. The corner blade is typically an L-shaped blade, but is not limited thereto. For example, the thin body may be punched out with a predetermined contour (for example, an uneven contour).
The side blade is typically a Thomson blade and is a straight blade.
Further, the side blade can be configured by combining a Thomson blade and a cutting blade. The side blade in this case may be shaped to punch through the thin body with a predetermined contour (for example, an uneven contour). In this case, a blade that opens a hole in the thin body may be added to the side blade.
The metal constituting at least one of the inner member and the outer member is typically aluminum or stainless steel. That is, at least one of the inner member and the outer member is made of an aluminum steel material or a stainless steel material.

(2)
The punching die according to (1), wherein the corner member is made of metal or plywood.
When the corner member is made of metal, the metal is typically aluminum. A shaving blade made of stainless steel can be attached to the square member made of aluminum. Moreover, a slit can be formed in the square member which consists of aluminum, and a Thomson blade can be inserted in this slit.
It is also possible to form the blade directly on the metal of the corner member. In this case, the corner member is typically stainless steel.

(3)
In the punching die in which the inner member is made of metal and the outer member is made of plywood,
A mechanism for pressing the straight blade against the outer periphery of the inner member is provided on the outer member or the inner member;
In the punching die in which the outer member is made of metal and the inner member is made of plywood,
A mechanism for pressing the straight blade against the inner periphery of the outer member is provided on the inner member or the outer member, or
In the punching die in which the outer member and the inner member are made of metal,
The mechanism for pressing the straight blade against the outer periphery of the inner member or the inner periphery of the outer member is provided on the inner member and / or the outer member, according to (1) or (2), Punching die.

(4)
A connecting member that connects the inner member and the outer member at a location other than the corners;
The cutting die according to (1), wherein the connecting member is formed with a blade continuous with the straight blade.

  The blade provided in the connecting member is a Thomson blade or a cutting blade. This blade is typically an L-shaped blade, but is not limited thereto. For example, the thin body may be punched out with a predetermined contour (for example, an uneven contour), or a blade for making a hole in the film may be added.

  According to the punching die of the present invention, it is easy to set the belt-like blade between the inner member and the outer member, and for example, it is easy to adjust the position at the cut of the belt-like blade. In addition, it is easy to replace the belt blade when it is damaged. Furthermore, when there is a design change in the punched product (for example, when the product is changed to a product with a hole for alignment), the design change of the punching die can be easily made accordingly.

  According to the punching die of the present invention, since the strip blade is pressed against the vertical surface of the metal outer member or the vertical surface of the inner member, the accuracy of attaching the strip blade is increased. Further, the punching accuracy does not decrease according to the number of punches. Furthermore, since a band-shaped blade having no notch is used except at least the corners, the rigidity of the band-shaped blade does not decrease even if the number of punches is increased.

  According to the punching die of the invention, since both or one of the inner member and the outer member is made of metal, at least half of all the components can be recycled. That is, reducing the amount of plywood used or making it zero can contribute to the protection of the natural environment. In particular, when a large punched product (such as a display film) is punched, the amount of plywood used can be extremely reduced by using at least the inner member as a metal.

FIG. 1 is an explanatory view showing an embodiment of the present invention. FIG. 2 is a view in which the inner member of FIG. 1 is taken out. FIG. 3 is a view of the outer member of FIG. 1 taken out. 4A and 4B are views in which the corner member of FIG. 1 is taken out, FIG. 4A is a plan view, and FIG. 4B is a side view as viewed from the A direction in FIG. It is explanatory drawing of the pressing mechanism of FIG. 1, (A) is a top view of a pressing mechanism, (B) is a side view of a pressing mechanism. FIG. 6 is an explanatory view showing a second embodiment of the present invention. FIG. 7 is an explanatory view showing a third embodiment of the present invention. FIG. 8 is an explanatory view showing a fourth embodiment of the present invention. It is a figure which shows the punching die using the conventional Thomson blade (band-shaped blade), (A) is an exploded view, (B) is a completion figure.

  FIG. 1 is an explanatory view showing a first embodiment of the present invention. In FIG. 1, the punching die 1 includes an inner member 11, an outer member 12, four corner members 13, a belt-like blade 14, and a pressing mechanism 15.

  In this embodiment, the inner member 11 is made of a steel material having an aluminum inner cavity, and includes a framework 111 and side steel materials 1121, 1122, 1123, 1124 whose side surfaces are vertical. The framework 111 is composed of a vertical steel material and a horizontal steel material, which are connected by an L-shaped reinforcing tool 113. Only the inner member 11 is shown in FIG.

  Further, side steel materials 1121, 1122, 1123, and 1124 are attached to the four tips of the framework 111. As a result, the inner member 11 forms a quadrangle with corners missing.

  The entire outer member 12 is a square frame made of plywood having an opening inside, and the inner member 11 can be received inside the square frame. A missing portion for coupling to the corner member 13 is formed at a corner portion (inner corner portion) of the outer member 12. FIG. 3 shows only the outer member 12. In FIG. 3, a region (a region where a shallow groove is dug) where a flat plate reinforcing tool 114 described later is set is indicated by LA. The inner periphery excluding the four corners of the outer member 12 is formed vertically.

  In this embodiment, the four corner members 13 are made of plywood, and connect the inner member 11 and the outer member 12.

  In the present embodiment, the four corner members 13 are coupled to the inner member 11 by an L-shaped reinforcing tool 113. The four corner members 13 are coupled to the outer member 12 by a flat plate reinforcing tool 114. For convenience of explanation, in FIG. 1, only one is displayed on the flat plate reinforcing tool 114 of the corner member 13 without being seen through, and the other three are seen through.

  Corner blades 141 each having a notch (not shown) are inserted into the four corner members 13. The corner member 13 is formed with a slit (not shown) penetrating between the front surface and the back surface, leaving a portion corresponding to the notch of the corner blade 141. The corner member 13 can be formed by cutting a metal plate. FIG. 4 ((A) is a plan view, and (B) is a side view as viewed from the A direction in (A)), showing the corner member 13 and the corner blade 141. 4A and 4B, the region where the flat plate reinforcing tool 114 is set (the region where the shallow groove is dug) is indicated by LA.

  The pressing mechanism 15 is provided on the outer member 12 side in this embodiment, and includes a pressing plate 151 and an eccentric screw 152. In this embodiment, the pressing plate 151 is a rectangular metal plate.

  As shown in the plan view of FIG. 5 (A) and the side view of FIG. 5 (B), the pressing plate 151 has a long side on the inner member 11 side of the side blade 142 (excluding the corner portion of the strip blade 14). It arrange | positions so that it may contact | abut. The eccentric screw 152 is provided so as to come into contact with the side of the pressing plate 151 that is not in contact with the side blade 142. 5A and 5B, the pressing plate 151 and the eccentric screw 152 are buried in a groove 154 formed in the outer member 12.

  By adjusting the eccentric screw 152, the side blade 142 can be brought into contact with the inner member 11 side by the pressing plate 151. Thereby, the side blade 142 is firmly sandwiched between the outer periphery excluding the corner portion of the inner member 11 and the inner periphery excluding the corner portion of the outer member 12.

  With the pressing plate 151, the pressing plate 151 can be screwed to the outer member 12 in a state where the side blade 142 is in contact with the inner member 11 side (open on the pressing plate 151 in FIG. 5A). Screw holes 153). In this case, the eccentric screw 152 can be removed.

  In assembling the punching die shown in FIG. 1, it is preferable to first determine the position of the corner member 13. For this positioning, for example, the outer member 12 can be provided with a position adjusting screw mechanism (such as an eccentric screw mechanism). When the position is determined, the flat plate reinforcing tool 114 is tightened.

  Next, the inner member 11 is mounted in the outer member 12. Before the attachment, the L-shaped reinforcing tool 113 is not tightened, and when the position of the inner member 11 in the outer member 12 is determined, the L-shaped reinforcing tool 113 is tightened.

  Thereafter, the side blade 142 is brought into contact with the inner member 11 side by the pressing plate 151 by adjusting the eccentric screw 152. The pressing plate 151 is not essential for the present embodiment, and can be omitted if the function of the pressing plate is achieved by the eccentric screw 152.

  As long as the pressing mechanism in the present embodiment can be configured to press the side blade 142 against the outer periphery of the inner member 11, another pressing mechanism that does not use the eccentric screw 152 can be employed.

  FIG. 6 is a diagram showing a second embodiment of the present invention. In FIG. 6, an insertion member 16 is provided at the boundary with the outer member 12 in the central portion of the side steel material 1121. The outer member 12 and the side steel material 1121 are processed so that the insertion member 16 can be mounted, and an insertion blade 143 continuous with the side blade 142 is formed on the insertion member 16.

  FIG. 7 is a diagram showing a third embodiment of the present invention. In FIG. 7, a connecting member 17 that connects the inner member 11 and the outer member 12 at the center of the side steel material 1121 is provided. In this embodiment, the connecting member 17 is made of plywood, and a blade 144 that is continuous with the side blade 142 is formed on the connecting member 17.

  FIG. 8 is an explanatory view showing a fourth embodiment of the present invention. In FIG. 8, the punching die 2 includes an outer member 21, an inner member 22, four corner members 23, a belt-like blade 24, and a pressing mechanism 25.

In the present embodiment, the outer member 21 is made of an aluminum internal hollow steel material, and includes an outer frame 211 and side steel materials 2121, 2122, 2123, 2124 whose side surfaces are vertical. Angles 215 are attached to the outer sides of the four corners of the outer member 21 to maintain strength.
Spacer steel materials 2131, 2132, 2133, and 2134 are provided between the outer frame 211 and the side steel materials 2121, 2122, 2123, and 2124.

  The inner member 22 is received inside the outer member 21. A missing portion for coupling to the corner member 13 is formed in the corner portion of the inner member 22.

  In this embodiment, the four corner members 23 are made of plywood, and connect the outer member 21 and the inner member 22.

  In the present embodiment, the four corner members 23 are coupled to the outer member 21 by L-shaped reinforcing tools 213. The four corner members 23 are coupled to the inner member 22 by a flat plate reinforcing tool 214. For convenience of explanation, in FIG. 8, only one is displayed on the flat plate reinforcing tool 214 of the corner member 23 without seeing through, and the other three are shown through.

  Corner blades 241 each having a notch (not shown) are inserted into the four corner members 23. The corner member 23 is formed with a slit (not shown) penetrating between the front surface and the back surface, leaving a portion corresponding to the notch of the corner blade 241. In addition, the corner member 23 can use what formed by shaving a metal plate.

  In this embodiment, the pressing mechanism 25 is provided on the inner member 22 side, and includes a pressing plate 251 and an eccentric screw 252. The pressing plate 251 is a rectangular metal plate in this embodiment.

  By adjusting the eccentric screw 252, the side plate 242 (the portion excluding the corner portion of the belt-like blade 24) can be brought into contact with the outer member 21 side by the pressing plate 251. Thereby, the side blade 242 is firmly sandwiched between the outer periphery excluding the corner portion of the outer member 21 and the inner periphery excluding the corner portion of the inner member 22.

  With the pressing plate 251, the pressing plate 251 can be screwed to the inner member 22 in a state where the side blade 242 is in contact with the outer member 21 side. In this case, the eccentric screw 252 can be removed.

  In assembling the punching die shown in FIG. 6, it is preferable to first determine the position of the corner member 23. For this positioning, for example, the inner member 22 can be provided with a position adjusting screw mechanism (such as an eccentric screw mechanism). When the position is determined, the flat plate reinforcing tool 214 is tightened.

  Next, the outer member 21 is attached to the outer side of the inner member 22. Before the attachment, the L-shaped reinforcing member 213 is not tightened, and when the position of the outer member 21 is determined, the L-shaped reinforcing member 213 is tightened.

  Thereafter, the side blade 242 is brought into contact with the outer member 21 side by the pressing plate 251 by adjusting the eccentric screw 252. The pressing plate 251 is not essential in the present embodiment, and can be omitted if the function of the pressing plate is achieved by the eccentric screw 252.

  In addition, if the pressing mechanism in this embodiment can comprise the mechanism which presses the side blade 242 to the outer periphery of the outer member 21, the other pressing mechanism which does not use the eccentric screw 252 is employable.

  Although not shown, in the present invention, both the inner member and the outer member can be made of metal. The punching die of this aspect can be configured using, for example, the inner member in the first embodiment and the outer member in the fourth embodiment.

DESCRIPTION OF SYMBOLS 1 Die type 2 Die type 9 Die type 11 Inner member 12 Outer member 13 Square member 14 Strip blade 15 Contact mechanism 16 Insert member 17 Connection member 21 Outer member 22 Inner member 23 Square member 24 Strip blade 25 Contact mechanism 91 Board 92 Strip blade 93 elastic block 113 L-shaped reinforcing tool 114 flat plate reinforcing tool 141 corner blade 142 side blade 143 insertion blade 144 blade 151 pad plate 152 eccentric screw 153 screw hole 154 groove 211 outer frame 213 L-shaped reinforcing tool 214 flat plate reinforcing tool 215 angle 241 corner Blade 242 Side blade 251 Pad plate 252 Eccentric screw 1121 Side steel material 2121 Side steel material 2131 Spacer steel material S Slit T Cutting edge

Claims (4)

A punching blade for punching a thin body,
A rectangular inner member whose outer periphery excluding the corners is a vertical surface;
A member for receiving the inner member therein, and an outer member whose inner periphery excluding corners is a vertical surface;
A corner member that connects the inner member and the outer member at least at each corner;
With
Each corner member is formed with a corner blade,
A side blade is sandwiched between an outer periphery excluding the corner portion of the inner member and an inner periphery excluding the corner portion of the outer member,
At least one of the inner member and the outer member is made of metal,
A punching die characterized by that.   The punching die according to claim 1, wherein the corner member is made of metal or plywood. In the punching die in which the inner member is made of metal and the outer member is made of plywood,
A mechanism for pressing the straight blade against the outer periphery of the inner member is provided on the outer member or the inner member;
In the punching die in which the outer member is made of metal and the inner member is made of plywood,
A mechanism for pressing the straight blade against the inner periphery of the outer member is provided on the inner member or the outer member, or
In the punching die in which the outer member and the inner member are made of metal,
The punching die according to claim 1 or 2, wherein a mechanism for pressing the straight blade against the outer periphery of the inner member or the inner periphery of the outer member is provided on the inner member and / or the outer member. . A connecting member that connects the inner member and the outer member at a location other than the corners;
The cutting die according to claim 1, wherein the connecting member is formed with a blade continuous with the straight blade.