A die-cutting fixture and die-cutting equipment

Abstract

This application relates to a die-cutting fixture and die-cutting equipment, belonging to the field of film material processing technology. It includes a fixture body, with a pad strip provided on the upper surface of the peripheral area of ​​the fixture body. The film material to be processed is laid in the middle area of ​​the fixture body. The pad strip is positioned to correspond to the excess material area of ​​the film material, so that the pad strip forms a stable and close support for the originally suspended excess material area of ​​the film material. When the die of the die-cutting machine presses down to cut, the pad strip bears the force and offsets the additional force, so that the edge of the film material is subjected to uniform force, reducing the phenomenon of stretching and deformation, ensuring the forming accuracy and appearance integrity of the film material edge, and improving the product appearance quality and finished product yield.

Description

Technical Field

[0001] This application relates to the field of film processing technology, and in particular to a die-cutting fixture and die-cutting equipment. Background Technology

[0002] In the processing of various film materials such as mobile phone protective films and automotive protective films, die cutting is the process of cutting the edges and forming the film material. It is applied to the large-scale production of film materials. By using a die cutting machine to cut the edges of the film material, the film material can be processed into finished products that meet the preset size and shape requirements.

[0003] In related technologies, the film material to be processed is laid on the surface of the fixture. After the film material is kept flat, the die-cutting machine is started to drive the die to press down and cut the film material. The area of ​​excess material to be removed is suspended on the outer edge of the die, thereby separating the effective area to be retained and the area of ​​excess material to be removed, thus completing the edge cutting of the film material.

[0004] However, when the die-cutting machine's die presses down to cut the film material, the area in contact between the film material and the fixture is such that the area to be retained is supported by adhering to the fixture surface, but the area of ​​excess material to be removed later is suspended outside the edge of the die. At this time, the force of the die pressing down will generate an additional outward force in the area of ​​excess material. This force causes uneven stress on the edge of the film material, which easily leads to stretching and deformation, reducing the appearance quality of the film material product and causing a decrease in the yield of finished products. Utility Model Content

[0005] To address the aforementioned problems, this application provides a die-cutting fixture and a die-cutting device.

[0006] The die-cutting fixture and die-cutting equipment provided in this application adopt the following technical solution: it includes a fixture body, and a pad strip is provided on the upper surface of the peripheral area of ​​the fixture body. The film material to be processed is laid in the middle area of ​​the fixture body, and the pad strip is positioned to correspond to the excess material area of ​​the film material.

[0007] By adopting the above technical solution, the pads arranged on the upper surface of the peripheral area of ​​the fixture body and corresponding to the excess material area of ​​the film material form a stable and close support for the excess material area of ​​the film material that was originally in a suspended state. When the die of the die-cutting machine presses down to cut the film material, the pads can bear the force transmitted to the excess material area by the die pressing down, and offset the extra force on the outside of the excess material area of ​​the film material caused by the suspension. This keeps the overall force on the edge of the film material uniform, reduces the stretching and deformation phenomena caused by uneven force on the edge of the film material, ensures the forming accuracy and appearance integrity of the edge of the film material, and improves the appearance quality and finished product yield of the film material product.

[0008] Preferably, the surface of the pad strip is provided with anti-slip texture.

[0009] By adopting the above technical solution, the anti-slip texture can increase the friction between the excess material area of ​​the film and the pad, reduce the displacement of the film relative to the pad caused by vibration or force during the die-cutting process, and ensure that the pad's support position for the excess material area of ​​the film is always accurate.

[0010] Preferably, the fixture body is provided with a mounting groove, and the side wall of the pad is fitted and connected to the groove wall of the mounting groove.

[0011] By adopting the above technical solution, the interlocking connection structure between the groove wall of the mounting groove and the side wall of the pad strip can realize the positioning and stable assembly of the pad strip on the upper surface of the surrounding area of ​​the fixture body, restrict the lateral or longitudinal displacement of the pad strip during the die-cutting operation, and ensure that the pad strip always accurately corresponds to the excess material area of ​​the film material and forms a continuous support.

[0012] Preferably, the mounting groove has a snap-fit ​​groove on its wall, the pad strip can be elastically deformable, and the side wall of the pad strip has a snap-fit ​​block, with the snap-fit ​​groove engaging with the snap-fit ​​block.

[0013] By adopting the above technical solution, the pad strip is pressed into the installation groove. Since the pad strip can have elastic deformation, the snap-fit ​​block on the side wall of the pad strip shrinks due to the compression of the installation groove wall. When the snap-fit ​​block moves to the snap-fit ​​groove position on the installation groove wall, the snap-fit ​​block loses the compression constraint and returns to its original shape, and is embedded with the snap-fit ​​groove. This snap-fit ​​structure ensures that the pad strip always accurately corresponds to the excess material area of ​​the film material and provides stable support.

[0014] Preferably, the edge of the pad strip away from the central region of the fixture body is provided with a limiting edge.

[0015] By adopting the above technical solution, the limiting edge set at the edge of the pad strip away from the middle area of ​​the fixture body can form a lateral limiting constraint on the excess material area of ​​the film material laid on the pad strip, further preventing the film material from shifting away from the middle of the fixture due to force or vibration during the die-cutting process, ensuring that the excess material area of ​​the film material is always completely attached to the surface of the pad strip.

[0016] Preferably, a support plate is provided in the middle region of the fixture body.

[0017] By adopting the above technical solution, the support plate fixedly installed in the middle area of ​​the fixture body will abut against the die after the die of the die-cutting machine has finished cutting the film material. This can provide a stable support reaction force for the die, limiting the excessive downward movement or shaking of the die. It can also balance the cutting force applied to the film material by the die through the reverse support force, further weakening the outer component force of the excess material area of ​​the film material, making the overall force on the film material more uniform.

[0018] Preferably, a die-cutting device includes a work station, wherein the fixture body is disposed on the work station of the die-cutting machine, and the fixture body and the work station are detachably connected.

[0019] By adopting the above technical solution, the detachable connection between the fixture body and the die-cutting machine workstation allows for the quick disassembly of the original fixture body and replacement with a fixture body adapted to the product according to the processing requirements of different specifications and models of film materials during the production process. This improves the production adaptability and overall operating efficiency of the die-cutting equipment, continuously ensuring the cutting and forming accuracy of various film materials from the perspective of die-cutting equipment adaptability, and improving the yield rate of multi-category film material production.

[0020] Preferably, the die-cutting fixture is provided with a positioning groove, and the working station is provided with a positioning block, the positioning block being inserted into the positioning groove.

[0021] By adopting the above technical solution, when the positioning block is embedded in the positioning groove, the horizontal and vertical placement positions of the fixture body on the work station are limited, the installation direction of the fixture body is clarified, and the relative position of the fixture body and the die is always consistent each time the fixture body is installed or replaced.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. By utilizing the pads arranged on the upper surface of the fixture body around the perimeter area, which precisely correspond to the excess material area of ​​the film material, a stable and close support is formed for the originally suspended excess material area of ​​the film material. When the die-cutting machine's die presses down to cut, the pads can bear the force transmitted to the excess material area of ​​the film material, offset the extra force to the outside, so that the edge of the film material is subjected to uniform force, reducing the phenomenon of tensile deformation, ensuring the forming accuracy and appearance integrity of the film material edge, and effectively improving the appearance quality and finished product yield of the film material product. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application.

[0024] Figure 2 This is a cross-sectional view of Embodiment 1 of this application.

[0025] Figure 3 This is a cross-sectional view of Embodiment 1 of this application.

[0026] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this application.

[0027] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Fixture body; 11. Pad strip; 111. Snap-fit ​​block; 112. Anti-slip texture; 113. Limiting edge; 12. Mounting groove; 121. Snap-fit ​​groove; 13. Support plate; 14. Positioning groove; 15. Connecting groove; 2. Working station; 21. Positioning block; 22. Connecting column. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0030] This application discloses a die-cutting fixture and die-cutting equipment. Example 1: Refer to... Figure 1 The fixture includes a fixture body 1, wherein a pad strip 11 is provided on the upper surface of the peripheral area of ​​the fixture body 1. When the film material to be processed is laid on the upper surface of the fixture body 1, the film material is located in the middle area of ​​the fixture body 1. The pad strip 11 is positioned to correspond to the excess material area of ​​the film material, forming a stable and close support for the excess material area of ​​the film material that was originally in a suspended state. When the die of the die-cutting machine presses down to cut the film material, the pad strip 11 can bear the force transmitted to the excess material area by the die pressing down, offsetting the extra force to the outside generated by the suspension of the excess material area of ​​the film material, so that the overall force on the edge of the film material remains uniform, reducing the stretching and deformation phenomena caused by uneven force on the edge of the film material, ensuring the forming accuracy and appearance integrity of the edge of the film material, and improving the appearance quality and finished product yield of the film material product.

[0031] Specifically, taking the geometric center of the fixture body 1 as a reference, the annular area extending radially outward to the outer periphery of the fixture body 1 is defined as the peripheral area. The inner boundary of the peripheral area coincides with the outer edge of the central area, and the outer boundary of the peripheral area is flush with the outer periphery of the fixture body 1. The pad strip 11 is set around the periphery of the fixture body 1. The peripheral area of ​​the fixture body 1 is made of aluminum alloy material, which has high hardness and good wear resistance. The overall shape of the fixture body 1 is rectangular, the peripheral area of ​​the fixture body 1 is a rectangular annular structure, and the central area of ​​the fixture body 1 is also rectangular.

[0032] Reference Figure 2Furthermore, a mounting groove 12 is provided at a corresponding position in the peripheral area of ​​the fixture body 1. In this embodiment, four mounting grooves 12 are provided along the circumference of the fixture body 1. The side wall of the pad 11 is fitted and connected to the groove wall of the mounting groove 12. Specifically, the overall shape of the pad 11 is L-shaped. The vertical side of the L-shaped pad 11 is fitted and connected to the groove wall of the mounting groove 12. The horizontal side of the L-shaped pad 11 is attached to the upper surface of the fixture body 1 to support the film material. Furthermore, the side wall of the vertical side of the L-shaped pad 11 is provided with a snap-fit ​​block 111. A matching snap-fit ​​groove 121 is opened at the corresponding position of the mounting groove 12. The pad 11 has elastic deformation capability. The snap-fit ​​cooperation between the snap-fit ​​block 111 and the snap-fit ​​groove 121 can be realized through the elastic characteristics.

[0033] Reference Figure 3 This explains that when the pad 11 is pressed vertically into the mounting groove 12, the pad 11 can elastically deform. The snap-fit ​​block 111 on the side wall of the pad 11 contracts due to the compression of the groove wall of the mounting groove 12. When the snap-fit ​​block 111 moves to the snap-fit ​​groove 121 position on the groove wall of the mounting groove 12, the snap-fit ​​block 111 loses the compression constraint and returns to its original shape, engaging with the snap-fit ​​groove 121. This snap-fit ​​structure ensures that the pad 11 always accurately corresponds to the excess material area of ​​the film material and provides stable support. If the pad 11 needs to be replaced, external force can be applied by prying the horizontal side of the pad 11 to make the snap-fit ​​block 111 elastically deform again and disengage from the snap-fit ​​groove 121, thereby removing the pad 11 from the mounting groove 12.

[0034] Furthermore, the pad 11 is made of an elastic material. In this embodiment, the pad 11 is made of methyl vinyl silicone rubber. Methyl vinyl silicone rubber has moderate elasticity, which can meet the deformation requirements during interlocking and provide stable support for the film material. It also has strong chemical stability and does not react with the adhesive layer of the film material.

[0035] Meanwhile, the surface of the horizontal side of the pad strip 11 is provided with anti-slip texture 112. The anti-slip texture 112 is a dot array structure. The dot array structure of the anti-slip texture 112 forms a uniformly distributed contact point between the excess material area of ​​the film and the surface of the pad strip 11 through a multi-point matrix. The pressure concentration effect of the contact point significantly increases the friction between the excess material area of ​​the film and the pad strip 11, effectively preventing the film from shifting laterally or longitudinally due to vibration and cutting force during the die-cutting process. This ensures that the excess material area of ​​the film always accurately adheres to the surface of the pad strip 11 to obtain stable support.

[0036] Furthermore, a limiting edge 113 is provided on the edge of the horizontal side of the pad strip 11 away from the middle area of ​​the fixture body 1. The limiting edge 113 can form a lateral limiting constraint on the excess material area of ​​the film material laid on the pad strip 11, further preventing the film material from shifting away from the middle of the fixture due to force or vibration during the die-cutting process, ensuring that the excess material area of ​​the film material is always completely attached to the surface of the pad strip 11.

[0037] Meanwhile, the height of the limiting edge 113 needs to be thicker than the film material to be processed to form an effective lateral barrier. The radial length of the limiting edge 113 needs to be shorter than the width of the excess material area of ​​the film material to ensure the limiting contact area without interfering with the peeling of the excess material. The limiting edge 113 is designed along the length direction of the horizontal side of the pad strip 11 and matches the length of the horizontal side of the pad strip 11. The irregular shapes of the film material can be designed in segments.

[0038] Furthermore, a support plate 13 is fixedly installed in the middle area of ​​the fixture body 1. The outline dimensions of the support plate 13 match the outline dimensions of the middle area of ​​the fixture body 1, and the support plate 13 is transparent. After the die-cutting machine's die presses down to cut the film material, it can form an abutment with the support plate 13. This abutment provides a stable support reaction force for the die-cutting machine's die, effectively limiting the excessive downward movement of the die-cutting machine's die. It can also balance the cutting force applied to the film material by the die through the reverse support force, further weakening the outer component force generated by the suspension of excess material in the film material, making the overall force on the film material more uniform, and reducing the edge stretching and deformation of the film material from the perspective of cutting force transmission.

[0039] The implementation principle of this embodiment is as follows: When die-cutting the film material, the film material to be processed is laid on the middle area of ​​the fixture body 1. The excess material area of ​​the film material is located above the pad strip 11. Due to the presence of the pad strip 11, when the die of the die-cutting machine presses down to cut the film material, the pad strip 11 can provide support for the excess material area of ​​the film material, reducing the uneven force on the edge of the film material, thereby reducing the probability of film material stretching and deformation. At the same time, the anti-slip texture 112 increases the friction between the film material and the pad strip 11, the limiting edge 113 provides lateral limiting for the film material, and the support plate 13 provides stable support reaction force for the die of the die-cutting machine, limiting the excessive downward movement of the die of the die-cutting machine, and balancing the cutting force applied to the film material by the die of the die-cutting machine, further weakening the outer component force generated by the suspension of the excess material area of ​​the film material, making the overall force on the film material more uniform, and further ensuring the stability of the die-cutting process and the quality of the film material product.

[0040] Example 2: Refer to Figure 4 and Figure 5The difference between this embodiment and the above embodiments is that the die-cutting fixture in this embodiment is used in a die-cutting machine. The die-cutting machine includes a work station 2. The fixture body 1 is set on the work station 2 of the die-cutting machine, and the fixture body 1 and the work station 2 are detachably connected. Specifically, the fixture body 1 is provided with multiple connecting slots 15, and the work station 2 is provided with multiple connecting posts 22. The connecting posts 22 and the connecting slots 15 are inserted and matched, and the connecting posts 22 and the connecting slots 15 are magnetically connected. When inserted, the connecting posts 22 and the connecting slots 15 are quickly attached by magnetic attraction, reducing the loosening of the fixture body 1 after installation. When disassembling, only a little external force is needed to release the magnetic constraint between the connecting posts 22 and the connecting slots 15.

[0041] Furthermore, the fixture body 1 and the work station 2 are detachably connected, which allows the original fixture body 1 to be quickly disassembled and replaced with a fixture body 1 that is compatible with the product according to the processing requirements of different specifications and models of film materials during the production process. This improves the production adaptability and overall operation efficiency of the die-cutting equipment, continuously ensures the cutting and forming accuracy of various film materials from the perspective of die-cutting equipment adaptability, and improves the yield rate of multi-category film material production.

[0042] Meanwhile, the fixture body 1 is provided with a positioning groove 14, and the work station 2 is provided with a positioning block 21. The positioning block 21 and the positioning groove 14 are inserted and matched, which can limit the horizontal and vertical placement of the fixture body 1 on the work station 2, clarify the installation direction of the fixture body 1, and ensure that the relative position of the fixture body 1 and the die is always consistent each time the fixture body 1 is installed or replaced.

[0043] The implementation principle of the die-cutting fixture and die-cutting equipment in this application embodiment is as follows: by detachably installing the die-cutting fixture on the work station 2, and using the positioning block 21 and positioning groove 14 for accurate positioning, the die-cutting equipment can easily replace different fixture bodies 1 to adapt to the die-cutting requirements of different film materials, and has stronger versatility and practicality.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A die-cutting tool, characterized by: The fixture includes a fixture body (1), and a pad (11) is provided on the upper surface of the peripheral area of ​​the fixture body (1). The film material to be processed is laid in the middle area of ​​the fixture body (1), and the pad (11) is positioned to correspond to the excess material area of ​​the film material.

2. The die-cutting fixture according to claim 1, characterized in that: The surface of the pad (11) is provided with anti-slip texture (112).

3. The die-cutting fixture according to claim 1, characterized in that: The fixture body (1) is provided with an installation groove (12), and the side wall of the pad (11) is fitted and connected to the groove wall of the installation groove (12).

4. The die-cutting fixture according to claim 3, characterized in that: The mounting groove (12) has a snap-fit ​​groove (121) on its groove wall. The pad (11) can have elastic deformation. The side wall of the pad (11) is provided with a snap-fit ​​block (111). The snap-fit ​​groove (121) and the snap-fit ​​block (111) are snap-fitted together.

5. The die-cutting fixture according to claim 1, characterized in that: The pad (11) has a limiting edge (113) at the edge of the central region away from the fixture body (1).

6. The die-cutting fixture according to claim 1, characterized in that: A support plate (13) is provided in the middle region of the fixture body (1).

7. A die-cutting apparatus, comprising the die-cutting fixture according to any one of claims 1-6, characterized in that: The machine includes a work station (2), and the fixture body (1) is set on the work station (2) of the die-cutting machine. The fixture body (1) and the work station (2) are detachably connected.

8. The die-cutting equipment according to claim 7, characterized in that: The die-cutting fixture is provided with a positioning groove (14), and the work station (2) is provided with a positioning block (21), which is inserted into the positioning groove (14).

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