CN217891849U - Die cutting piece bending die - Google Patents

Abstract

The utility model discloses a die-cutting piece bending die, which comprises a first upper die and a lower die which are matched relatively, wherein the lower die comprises a jig base, a forming jig arranged on the jig base and a material groove arranged on the forming jig; a forming support table positioned at the bottom of the material groove is arranged in the forming jig, and the forming support table comprises a bearing surface and a stepped forming surface corresponding to the stepped structure of the die-cutting piece; the second is gone up the mould and is provided with the corresponding shaping pressure head of the ladder shaping profile of shaping saddle, the shaping pressure head with the ladder shaping profile is complementary mutually, works as first last mould lid fits on the lower mould, the ladder shaping profile with form the ladder shaping chamber between the shaping pressure head. The die-cutting piece bending die is simple in structure and control method, and high in forming efficiency.

Description

Cross cutting piece mould of bending

Technical Field

The utility model relates to a cross cutting piece technique of bending especially relates to a cross cutting piece mould of bending.

Background

The die-cut product is widely applied to the industrial fields of the electronic and electrical industry, the automobile manufacturing industry, the flat panel display industry and the like, and particularly applied to the products of layered thin materials in the preparation process, such as insulating materials, shockproof materials, heat-resistant materials, adhesive materials, dustproof materials, shielding materials and the like, which all need to be processed and manufactured by the die-cutting technology. The die-cutting product has a wide application range, is widely applied to high-tech products such as electronics, electric appliances, instruments and meters, communication equipment, digital products, medical instruments and the like, and plays different roles in different products.

Chinese patent No. CN201721627912.7 discloses a die-cut bending device, which comprises a hot-melting machine table and a hot-melting machine die, wherein the hot-melting machine die comprises an upper die and a lower die which are complementary to each other; a bending groove is formed in the lower die, and a bending assembly is arranged in the bending groove; the bending assembly comprises a pull rod longitudinally penetrating through the middle part of the bending groove, the pull rod is movably sleeved and fixedly arranged on a first forming block in the bending groove at the bending processing part, and the first forming block is provided with a bending processing inclined plane; on the opposite side of the bending processing inclined plane, a pull rod is fixedly sleeved with a sliding block, the sliding block is arranged on a sliding block guide rail in the bending groove and slides along the guide rail, the upper end of the sliding block is fixedly connected with a second forming block, and an excessive processing inclined plane which is complementary with the bending processing inclined plane is arranged on the opposite side of the second forming block and the first forming block; the upper die is provided with a pressing block, the pressing block comprises a pressing block body and a protruding portion, and after the upper die and the lower die are closed, the pressing block body, the protruding portion and the first forming block form a forming die cavity. When the die-cut piece is processed, the vertical surface formed by the bulge part of the pressing block body, the top end surface of the first forming block and the right inclined surface enable the processing position of the die-cut piece to be bent vertically. For further bending processing, the tail end of the die-cutting piece is prevented from rebounding, the pull rod is utilized to move towards the first forming block, so that the second forming block fixedly arranged on the sliding block is driven to move towards the first forming block, due to the fact that the complementary processing inclined plane is arranged, the left inclined plane of the second forming block forms an excessive bending processing process for the tail end of the die-cutting piece, namely, along with the movement of the second forming block towards the left side, the tail end of the die-cutting piece continues to be bent towards the left end (excessive bending) under a vertical structure, after the die-cutting piece is heated and formed, the second forming block returns to the initial position, the tail end of the die-cutting piece rebounds, and the rebound force of the rebound of the die-cutting piece just offsets the consumption of the excessive bending, so that the standard stable vertical bending is formed.

The bending device enables a die-cut piece to be vertically bent by matching a pressure head of an upper die with a first forming block of a lower die, a forming die cavity formed by a pressing block body of a pressing block, a protruding part and the first forming block of the lower die is only provided with one bending angle, only a bending structure can be processed on the die-cut piece, and a step structure with a plurality of bending angles cannot be processed on the die-cut piece; in addition, when the bending device is used for preventing the tail end of the die-cut piece after bending processing from rebounding and excessively bending the tail end of the die-cut piece, the pressure head of the lower die is lowered to be matched with the first forming block of the lower die to enable the die-cut piece to be vertically bent, the second forming block of the lower die needs to move towards the left side, the second forming block of the lower die is matched with the first forming block to enable the die-cut piece to be excessively bent, the die-cut piece is bent twice, and the bending device is low in efficiency and complex in structure.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a die cutting piece mould of bending can form the stair structure on the die cutting piece, and only need hot pressing just can form excessive bending structure on the die cutting piece.

The utility model discloses the technical problem that solve realizes through following technical scheme:

a die-cut piece bending die is used for forming a stepped structure on a die-cut piece and comprises a first upper die and a lower die which are matched with each other, wherein the lower die comprises a jig base, a forming jig arranged on the jig base and a material groove formed in the forming jig; a forming support platform positioned at the bottom of the material groove is arranged in the forming jig, and the forming support platform comprises a bearing surface and a stepped forming surface corresponding to the stepped structure of the die-cut piece; the second is gone up the mould and is provided with the corresponding shaping pressure head of the ladder shaping profile of shaping saddle, the shaping pressure head with the ladder shaping profile is complementary mutually, works as first last mould lid fits on the lower mould, the ladder shaping profile with form the ladder shaping chamber between the shaping pressure head.

Furthermore, the die-cut piece bending die also comprises a second upper die, wherein a V-shaped groove is formed in the bottom of the material groove, is positioned between two sides of the material groove along the X direction and extends along the Y direction; the second upper die is provided with a V-shaped pressure head corresponding to the V-shaped groove, the V-shaped pressure head and the V-shaped groove complement each other, and when the second upper die covers the lower die, a V-shaped cavity is formed between the V-shaped groove and the V-shaped pressure head.

The utility model discloses following beneficial effect has:

the die-cutting piece bending die is matched with a forming support platform of a lower die and a forming pressure head of a first upper die, a stepped structure can be formed on a die-cutting piece only through one-time hot pressing, the die-cutting piece is placed in a material groove of the lower die when the die-cutting piece bending die is used, at the moment, a local area, needing to be formed into the stepped structure, of the die-cutting piece is located above a stepped forming surface of the forming support platform, then the heated first upper die is covered on the lower die, when the first upper die is covered on the lower die, the forming pressure head presses the local area, needing to be formed into the stepped structure, of the die-cutting piece to the stepped forming surface, so that the local area, needing to be formed into the stepped structure, of the die-cutting piece is formed in a stepped forming cavity formed by the stepped forming surface and the forming pressure head through heating forming, and the stepped structure is finally formed on the die-cutting piece;

the die cutting piece bending die is characterized in that a V-shaped groove of a lower die is matched with a V-shaped pressure head of a second upper die, an excessive bending structure can be formed on a die cutting piece only through one-time hot pressing, when the die cutting piece is placed in a material groove of the lower die, a local area of the die cutting piece, which is required to form the bending structure, is located above the V-shaped groove, after the first upper die carries out hot pressing on the die cutting piece to form a stepped structure, the heated second upper die is covered on the lower die, when the second upper die is covered on the lower die, the V-shaped pressure head presses the local area, which is required to form the bending structure, of the die cutting piece to the V-shaped groove, so that the local area, which is required to form the bending structure, of the die cutting piece is formed in a V-shaped cavity formed by the V-shaped groove and the V-shaped pressure head through heating forming, and when the angle between the V-shaped groove and the V-shaped pressure head is slightly larger than the included angle of the bending structure, the excessive bending structure can be formed on the die cutting piece finally.

Drawings

FIG. 1 is a schematic view of a die-cut piece provided by the present invention before being formed;

FIG. 2 is a schematic view of the die-cut piece provided by the present invention after being formed;

fig. 3 is a schematic view between a first upper die and a lower die in the die-cut bending die provided by the present invention;

FIG. 4 is a schematic view of a lower die of the die-cut bending die provided by the present invention;

fig. 5 is a schematic view between the forming saddle, the buffering pressure head and the forming pressure head in the die-cut piece bending die provided by the present invention;

fig. 6 is another schematic view of the forming saddle, the buffering pressing head and the forming pressing head in the die-cut piece bending die provided by the present invention;

fig. 7 is another schematic view of the forming saddle, the buffering pressure head and the forming pressure head in the die-cut bending die provided by the present invention;

fig. 8 is a schematic view between a second upper die and a lower die in the die-cut piece bending die provided by the present invention;

fig. 9 is the utility model provides a die cutting spare is schematic diagram between V-arrangement groove, V-arrangement pressure head and the striker plate in the mould of bending.

Detailed Description

The invention is described in detail below with reference to the drawings, wherein examples of the embodiments are shown in the drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the interconnection of two elements or through the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example one

As shown in fig. 1, the die-cut member 1 of the present case includes a main body region 11 and a tail region 12, the tail region 12 being connected to one side of the main body region 11; as shown in fig. 2, the tail region 12 is bent toward the main region 11 a plurality of times to form a step structure 13. In this embodiment, the step number of the step structure 13 is one step.

A die-cut piece bending die is used for forming a stepped structure 13 on a die-cut piece 1.

As shown in fig. 3 and 4, the die-cut piece bending die comprises a first upper die 2 and a lower die 3 which are matched with each other, wherein the lower die 3 comprises a jig base 31, a forming jig 32 arranged on the jig base 31, and a material groove 33 arranged on the forming jig 32; a forming support table 34 positioned at the bottom of the material groove 33 is arranged in the forming jig 32, and the forming support table 34 comprises a bearing surface 341 and a stepped forming surface 342 corresponding to the stepped structure 13 of the die-cutting part 1; the first mould 2 of going up is provided with the corresponding shaping pressure head 21 of the ladder profiled surface 342 of shaping saddle 34, shaping pressure head 21 with ladder profiled surface 342 is complementary mutually, works as first mould 2 of going up covers when going up on the lower mould 3, ladder profiled surface 342 with form the ladder profiled cavity between the shaping pressure head 21.

The die-cutting piece bending die is characterized in that a step structure 13 can be formed on a die-cutting piece 1 only through matching of a forming support table 34 of a lower die 3 and a forming pressure head 21 of a first upper die 2, the die-cutting piece 1 is placed in a material groove 33 of the lower die 3 in use, at the moment, a local area of the die-cutting piece 1, which is required to form the step structure 13, is located above a step forming surface 342 of the forming support table 34, then the heated first upper die 2 is covered on the lower die 3, and when the first upper die 2 is covered on the lower die 3, the forming pressure head 21 presses the local area, which is required to form the step structure 13, of the die-cutting piece 1 to the step forming surface 342, so that the local area, which is required to form the step structure 13, of the die-cutting piece 1 is formed in a step forming cavity formed by the step forming surface 342 and the forming pressure head 21 through heating forming, and the step structure 13 is finally formed on the die-cutting piece 1.

The step number of the stepped molding surface 342 is N +1, the step number of the molding ram 21 is N, N is not less than 0, that is, as shown in fig. 6, when the step number of the stepped molding surface 342 is 2, the step number of the molding ram 21 is 1, as shown in fig. 7, when the step number of the stepped molding surface 342 is 3, the step number of the molding ram 21 is 2, and when the step number of the stepped molding surface 342 is 4, the step number of the molding ram 21 is 3 (not shown).

In this embodiment, as shown in fig. 5, the stepped forming surface 342 has a step number of 1, and the forming ram 21 has a step number of 0, that is, the forming ram 21 is a regular square ram.

The support surface 341 of the forming pallet 34 is flush with the bottom surface of the material trough 33.

The first upper die 2 is provided with a buffer pressure head 22 corresponding to the bearing surface 341 of the forming saddle 34, one end of the buffer pressure head 22 is connected with the first upper die 2 through a buffer spring, and the other end of the buffer pressure head exceeds the forming pressure head 21 in the covering direction.

In the process of covering the first upper die 2 and the lower die 3, the buffer indenter 22 firstly presses the die slice on the supporting surface 341 of the forming support 34 to prevent the die-cutting element 1 from deviating, and retracts into the first upper die 2 under the action of the forming support 34, and the forming indenter 21 continues to move towards the lower die 3 along with the first upper die 2 until it presses the die slice on the stepped forming surface 342 of the forming support 34.

The lower die 3 is provided with a plurality of positioning holes, the first upper die 2 is provided with a plurality of first positioning columns 23, each positioning hole corresponds to each first positioning column 23 one by one, and when the first upper die 2 covers the lower die 3, each first positioning column 23 is inserted into the corresponding positioning hole.

As shown in fig. 4, the lower mold 3 further includes a positioning assembly, the positioning assembly is used for positioning the die-cutting piece 1 in the material slot 33 along the X direction and the Y direction, and the X direction is perpendicular to the Y direction.

The die-cutting piece bending die is used for positioning the die-cutting piece 1 in the material groove 33 before the first upper die 2 is covered through the positioning assembly in the lower die 3 so as to improve the bending forming precision of the first upper die 2 on the die-cutting piece 1.

The positioning assembly comprises a first positioning block 37 and a second positioning block 311, the first positioning block 37 is arranged on one side of the material groove 33 along the X direction and can move along the X direction to enter or leave the material groove 33, and when the first positioning block 37 enters the material groove 33, the die cutting piece 1 in the material groove 33 is pushed to the other side of the material groove 33 along the X direction; the second positioning block 311 is disposed on one side of the material slot 33 along the Y direction, and can move along the Y direction to enter or leave the material slot 33, and when entering the material slot 33, the second positioning block pushes the die cutting element 1 located in the material slot 33 along the Y direction to the other side of the material slot 33.

The positioning assembly further comprises a first guide rail 38, a first air cylinder 310, a second guide rail 312 and a second air cylinder 314 which are arranged on the jig base 31, and a first sliding block 39 arranged on the first guide rail 38 and a second sliding block 313 arranged on the second guide rail 312; the first positioning block 37 is disposed on the first slider 39 and is driven by the first cylinder 310 to move in the X direction, and the second positioning block 311 is disposed on the second slider 313 and is driven by the second cylinder 314 to move in the Y direction.

The forming fixture 32 is provided with a first limiting block 315 corresponding to the first positioning block 37, and a second limiting block 316 corresponding to the second positioning block 311; the first stopper 315 is used to limit the maximum stroke of the first positioning block 37, and the second stopper 316 is used to limit the maximum stroke of the second positioning block 311.

During positioning, after the first positioning block 37 moves into the material groove 33, the die-cutting part 1 is pushed to move and position along the X direction, and the first limiting block 315 abuts against the first positioning block 37 at the maximum stroke, so that the first positioning block 37 is limited to continue moving; similarly, after the second positioning block 311 moves into the material slot 33, the die-cutting element 1 is pushed to move and position along the Y direction, and the second limiting block 316 abuts against the second positioning block 311 at the maximum stroke, so as to limit the second positioning block 311 to move continuously.

Example two

As an optimized solution of the first embodiment, as shown in fig. 1, the main body area 11 of the die-cutting member 1 in this embodiment includes a first area 111 and a second area 112 connected to each other, a notch is provided on the second area 112, and the tail area 12 is connected to one side of the first area 111 at the notch; as shown in fig. 2, the first region 111 and the second region 112 are bent to form a bending structure 14. In this embodiment, the included angle of the bending structure 14 needs to be between 70 ° and 80 ° (corresponding to the bending angle being between 100 ° and 110 °).

The die-cut part bending die of the embodiment is also used for forming a bending structure 14 on the die-cut part 1.

As shown in fig. 8 and 4, the die-cut piece bending die in this embodiment further includes a second upper die 4, a V-shaped groove 317 is disposed at the bottom of the material groove 33, and the V-shaped groove 317 is located between two sides of the material groove 33 along the X direction and extends along the Y direction; the second upper die 4 is provided with a V-shaped pressure head 41 corresponding to the V-shaped groove 317, the V-shaped pressure head 41 and the V-shaped groove 317 complement each other, and when the second upper die 4 covers the lower die 3, a V-shaped cavity is formed between the V-shaped groove 317 and the V-shaped pressure head 41.

The die-cutting piece bending die is characterized in that a bending structure 14 can be formed on a die-cutting piece 1 only by one-time hot pressing through matching of a V-shaped groove 317 of a lower die 3 and a V-shaped pressure head 41 of a second upper die 4, when the die-cutting piece 1 is placed in a material groove 33 of the lower die 3, a local area of the die-cutting piece 1, which is required to form the bending structure 14, is located above the V-shaped groove 317, after the first upper die 2 forms a stepped structure 13 through hot pressing on the die-cutting piece 1, the heated second upper die 4 is covered on the lower die 3, and when the second upper die 4 is covered on the lower die 3, the V-shaped pressure head 41 presses the local area of the die-cutting piece 1, which is required to form the bending structure 14, to the local area of the die-cutting piece 1, which is required to form the bending structure 14, into a V-shaped forming cavity formed by the V-shaped groove 317 and the V-shaped pressure head 41, so as to realize the formation of the bending structure 14 on the die-cutting piece 1 finally.

The angle between the V-shaped groove 317 and the V-shaped pressing head 41 should be the same as the angle between the bending structures 14, and the angle between the V-shaped groove 317 and the V-shaped pressing head 41 may be slightly larger than the angle between the bending structures 14 in consideration of the influence of the self-resilience of the die-cut piece 1.

The second upper die 4 is provided with a plurality of second positioning columns 42, each positioning hole corresponds to each second positioning column 42 one by one, and when the second upper die 4 covers the lower die 3, each first positioning column 42 is inserted into the corresponding positioning hole.

The lower die 3 further comprises a supporting platform push-pull assembly arranged on the jig base 31, and the supporting platform push-pull assembly is connected with and drives the forming supporting platform 34 in the forming jig 32 to move so that the forming supporting platform 34 enters or leaves the material groove 33.

After the first upper die 2 forms the stepped structure 13 by hot pressing the die-cut part 1, and leaves the lower die 3, and before the second upper die 4 covers the lower die 3, the pallet push-pull assembly drives the forming pallet 34 to move away from the material groove 33, so as to avoid interference of the forming pallet 34 on the V-shaped pressure head 41 when the second upper die 4 covers the lower die 3; and carrying out hot pressing on the die-cut piece 1 on the second upper die 4 to form the bending structure 14, wherein the tray push-pull assembly drives the forming tray 34 to move into the material groove 33 so as to prepare for processing the stepped structure 13 of the next die-cut piece 1.

The tray table push-pull assembly comprises a push-pull cylinder 35, a guide rail structure 36 is formed in the forming jig 32, and the forming tray table 34 is arranged in the guide rail structure 36 of the forming jig 32, connected with the push-pull cylinder 35 and driven by the push-pull cylinder 35.

First last mould 2 and second go up mould 4 and can set up on same hot melting machine, in order to pass through the hot melting machine drives mould 4 moves in proper order extremely on first last mould 2 and the second the top of lower mould 3, it is right cross cutting piece 1 in the lower mould 3 is processed in proper order, mould 4 also can set up on the hot melting machine of difference on first last mould 2 and the second, in order to drive through a material feeding unit lower mould 3 moves in proper order extremely the first below of last mould 4 on 2 and the second is right cross cutting piece 1 in the lower mould 3 is processed in proper order.

The lower die 3 further comprises a material baffle 318, wherein the material baffle 318 is arranged on the forming jig 32 and can move on the forming jig 32 to enter or leave the upper part of the material groove 33.

After the material baffle 318 moves above the V-shaped groove 317, at least a local area of the material groove 33, such as a local area corresponding to the first area 111 of the die-cut piece 1, is blocked, so as to prevent two sides of the bending structure 14 from tilting and touching the heated V-shaped ram 41 when the die-cut piece 1 forms the bending structure 14.

The lower die 3 further comprises a material blocking driving assembly arranged on the jig bottom plate 31, and the material blocking driving assembly is connected with and drives the material blocking plate 318 to move. Keep off material drive assembly including set up in keeping off material guide rail 319, keeping off material slider 320 and keeping off material cylinder 321, keep off material slider 320 set up in keep off on the material guide rail 319, striker plate 318 set up in keep off on the material slider 320, by keep off the drive of material cylinder 321 and remove.

An empty avoiding groove 322 is formed in one side, facing the material groove 33, of the material baffle 318, and as shown in fig. 9, when the material baffle 318 moves into the upper portion of the V-shaped groove 317, the empty avoiding groove 322 is located right below the V-shaped pressure head 41.

The clearance groove 322 is used for allowing the V-shaped pressure head 41 to pass through when the second upper die 4 is covered after the striker plate 318 extends out.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and not for limiting the same, and although the embodiments of the present invention are described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the embodiments of the present invention can still be modified or replaced with equivalents, and these modifications or equivalent replacements cannot make the modified technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A die-cut piece bending die is used for forming a stepped structure on a die-cut piece and comprises a first upper die and a lower die which are matched relatively, wherein the lower die comprises a jig base, a forming jig arranged on the jig base and a material groove formed in the forming jig; the forming jig is characterized in that a forming support platform positioned at the bottom of the material groove is arranged in the forming jig, and the forming support platform comprises a bearing surface and a stepped forming surface corresponding to the stepped structure of the die-cut piece; the first mould of going up be provided with the corresponding shaping pressure head of the ladder shaping profile of shaping saddle, the shaping pressure head with the ladder shaping profile is complementary mutually, works as first mould lid fits on the lower mould, the ladder shaping profile with form the ladder shaping chamber between the shaping pressure head.

2. The die-cut piece bending die according to claim 1, wherein the step number of the step forming surface is N +1, the step number of the forming press head is N, and N is not less than 0.

3. The die-cut piece bending die according to claim 1, wherein a bearing surface of the forming support platform is flush with the bottom surface of the material groove.

4. The die-cut piece bending die according to claim 1, wherein the lower die further comprises a positioning assembly, the positioning assembly is used for positioning the die-cut piece in the material groove along an X direction and a Y direction, and the X direction is perpendicular to the Y direction.

5. The die-cutting piece bending die according to claim 4, wherein the positioning assembly comprises a first positioning block and a second positioning block, the first positioning block is arranged on one side of the material groove along the X direction and can move along the X direction to enter or leave the material groove, and when the first positioning block enters the material groove, the die-cutting piece in the material groove is pushed to the other side of the material groove along the X direction; the second positioning block is arranged on one side of the material groove in the Y direction and can move in the Y direction to enter or leave the material groove, and when the second positioning block enters the material groove, the second positioning block pushes the die cutting piece in the material groove to the other side of the material groove in the Y direction.

6. The die-cut piece bending die according to claim 5, wherein a first limiting block corresponding to the first positioning block and a second limiting block corresponding to the second positioning block are arranged on the forming jig; the first limiting block is used for limiting the maximum stroke of the first positioning block, and the second limiting block is used for limiting the maximum stroke of the second positioning block.

7. The die-cutting part bending die according to claim 1, further used for forming a bending structure on the die-cutting part, and further comprising a second upper die, wherein a V-shaped groove is formed in the bottom of the material groove, is positioned between two sides of the material groove in the X direction, and extends in the Y direction; the second upper die is provided with a V-shaped pressure head corresponding to the V-shaped groove, the V-shaped pressure head and the V-shaped groove complement each other, and when the second upper die covers the lower die, a V-shaped forming cavity is formed between the V-shaped groove and the V-shaped pressure head.

8. The die-cut piece bending die according to claim 7, wherein the lower die further comprises a supporting platform push-pull assembly arranged on the jig base, and the supporting platform push-pull assembly is connected to drive a forming supporting platform in the forming jig to move so that the forming supporting platform enters or leaves the material groove.

9. The die-cut piece bending die according to claim 7, wherein the lower die further comprises a material baffle plate which is arranged on the forming jig and can move on the forming jig to enter or leave above the material groove.

10. The die-cut piece bending die according to claim 9, wherein a clearance groove is formed in one side, facing the material groove, of the material blocking plate, and after the material blocking plate moves above the V-shaped groove, the clearance groove is located right below the V-shaped pressure head.

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