Machining die

Abstract

The utility model relates to the technical field of cushion pad manufacturing, and provides a machining die which comprises an upper cutting die and a lower cutting die. The upper cutting die comprises a first mounting plate, a contour cutter strip and a right tearing hand part avoiding cutter strip, the contour cutter strip and the right tearing hand part avoiding cutter strip are fixedly arranged on the lower surface of the first mounting plate, and the contour cutter strip is composed of a buffer working area shape, a left tearing hand area shape and a right tearing hand area shape; the right tearing hand part avoiding knife strip is positioned between the buffering working area shape and the right tearing hand area shape; and the lower cutting die comprises a second mounting plate and a left tearing hand part avoiding cutter strip, the left tearing hand part avoiding cutter strip is fixedly arranged on the upper surface of the second mounting plate, and the left tearing hand part avoiding cutter strip is located on the left side of the outline cutter strip. The die cutting device has the advantages that the upper cutting die and the lower cutting die which are asynchronous are arranged, release paper and foam are subjected to die cutting through the upper cutting die and the lower cutting die in the same working procedure, cushion pad products obtained after die cutting are good in consistency, and the production efficiency of cushion pads is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cushion manufacturing, in particular to a processing mould. Background Art

[0002] Electric vehicles must ensure safety during driving and charging / discharging, preventing spontaneous combustion. Typically, a power battery consists of several modules, each of which contains several cells. Cushioning pads are used within the battery to provide shock absorption and protect the cells within the module. Market demand is driving changes in production, leading to increasingly automated power battery manufacturing and higher requirements for material quality. Consequently, the structure of these cushioning pads is becoming increasingly complex.

[0003] See Figure 1 The cushion pad with release paper tear tabs on both sides includes, from top to bottom, a first release paper 41 with a left tear tab 411, a first double-sided adhesive tape 42, a foam pad 43, a second double-sided adhesive tape 44, and a second release paper 45 with a right tear tab 451. The foam pad 13 is polypropylene foam. The traditional manufacturing process for this type of cushion pad with release paper tear tabs on both sides is: foamed polypropylene foam coated with glue → polypropylene foam indentation → release paper die-cutting → manual release paper application. The die used in each process is unique, see [refer to the following] Figure 2 The foam creasing process requires a knife die, including a creasing plate 5 and a creasing knife strip 51 fixedly arranged on the creasing plate 5; Figure 3 The release paper die-cutting process requires another type of die, including a die-cutting plate 6 and a die-cutting blade 61 fixedly arranged on the die-cutting plate 6.

[0004] Disadvantages of traditional processing technology of cushioning pads: Separate use in different processes such as Figure 2 and Figure 3 The knife die shown easily leads to poor product consistency between the indented foam and the die-cut release paper; and the die-cut release paper is manually applied to the indented foam, which reduces production efficiency.

[0005] Therefore, how to die-cut release paper and foam in the same process to ensure good consistency of the die-cut cushion products and improve the production efficiency of the cushion is a technical problem that needs to be solved urgently in this field. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a processing mold for die-cutting release paper and foam in the same process, so that the die-cut cushion products have good consistency and the production efficiency of the cushion is improved.

[0007] The present invention is achieved in this way: a processing mold, comprising:

[0008] Upper cutting die and lower cutting die;

[0009] The upper cutting die includes a first mounting plate, a contour cutting strip and a right tearing hand avoidance cutting strip, wherein the contour cutting strip and the right tearing hand avoidance cutting strip are both fixedly arranged on the lower surface of the first mounting plate, and the shape of the contour cutting strip is composed of a buffer working area shape, a left tearing hand area shape and a right tearing hand area shape, and the right tearing hand avoidance cutting strip is located between the buffer working area shape and the right tearing hand area shape;

[0010] The lower cutting die includes a second mounting plate and a left tearing hand avoidance blade strip, wherein the left tearing hand avoidance blade strip is fixedly mounted on the upper surface of the second mounting plate, and is located to the left of the contour blade strip, and when the left tearing hand avoidance blade strip is translated to the right by a jump distance, the left tearing hand avoidance blade strip is aligned upward between the shape of the buffer working area and the shape of the left tearing hand area;

[0011] The first mounting plate and the second mounting plate are respectively located at the upper end and the lower end of the mold frame.

[0012] Furthermore, a positioning column is provided at a corner position of the lower surface of the first mounting plate, and a positioning hole is provided at a corner position of the upper surface of the second mounting plate, and the positioning column is aligned with and can be inserted into the positioning hole.

[0013] Furthermore, when the upper cutting die and the lower cutting die are closed, the contour cutting strip contacts the upper surface of the second mounting plate, and a first gap is formed between the left tearing hand avoidance cutting strip and the lower surface of the first mounting plate, and the first gap is the thickness of the first release paper, and a second gap is formed between the right tearing hand avoidance cutting strip and the upper surface of the second mounting plate, and the second gap is the thickness of the second release paper.

[0014] Furthermore, the thickness of the first release paper is equal to the thickness of the second release paper.

[0015] Furthermore, the jump distance is greater than the width of the contour blade.

[0016] Furthermore, the contour blade is in the shape of a concave character.

[0017] Furthermore, the mold frame includes a top seat, a lifting seat, a base and a guide column, the top seat is fixedly connected to the upper end of the guide column, the lifting seat is slidably connected to the guide column, the base is fixedly connected to the lower end of the guide column, the upper cutting mold is fixedly connected to the top seat, and the lower cutting mold is fixedly connected to the lifting seat.

[0018] Compared with the background technology, the advantages and beneficial effects of the present invention are:

[0019] An asynchronous upper cutting die and a lower cutting die are set, and the foam is coated with release paper in advance to obtain a buffer sheet. The upper cutting die and the lower cutting die are used to die-cut the buffer sheet in the same process. The upper cutting die cuts the foam required for buffering work and the first release paper with a left tearing hand from the buffer sheet. After the buffer sheet is translated and jumped, the lower cutting die cuts the second release paper with a right tearing hand to obtain a buffer pad with release paper tearing hands on both sides. There is no need to manually stick the release paper after die-cutting. The upper cutting die and the lower cutting die die-cut the release paper and foam in the same process, so that the die-cut buffer pad products have good consistency and the production efficiency of the buffer pad is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 It is a structural schematic diagram of a buffer pad with release paper tear tabs on both sides in the background art.

[0022] Figure 2 It is a schematic diagram of a knife die used in the foam indentation process in the background technology.

[0023] Figure 3 It is a schematic diagram of a knife die used in the release paper die-cutting process in the background technology.

[0024] Figure 4 This is a schematic diagram of the structure of the processing mold of the utility model Figure 1 .

[0025] Figure 5 This is a schematic diagram of the structure of the processing mold of the utility model Figure 2 .

[0026] Figure 6 2 is a schematic diagram of the positions of the contour knife strip and the right tearing hand avoidance knife strip on the first mounting plate in an embodiment of the present utility model.

[0027] Figure 7 2 is a schematic diagram of the position of the left tearing hand avoiding knife strip on the second mounting plate in an embodiment of the present utility model.

[0028] Figure 8 It is a schematic diagram of the buffer sheet entering between the upper cutting die and the lower cutting die in the embodiment of the present utility model.

[0029] Figure 9 This is a schematic diagram of an embodiment of the present invention in which the contour knife strip cuts the buffer sheet and the right tearing hand avoids the knife strip from cutting the second release paper.

[0030] Figure 10 This is a schematic diagram of the left tearing hand avoiding the knife strip from cutting the first release paper in an embodiment of the present invention.

[0031] Figure 11This is a schematic diagram of the position of the buffer sheet die-cut by the contour knife strip and the right tearing hand avoidance knife strip in the embodiment of the utility model, and the left tearing hand avoidance knife strip after the translation jump distance.

[0032] Figure 12 It is a schematic diagram of the positions of the upper cutting die, the lower cutting die and the mold frame in the embodiment of the present utility model.

[0033] Figure markings: upper cutting die 1; first mounting plate 11; positioning column 111; contour knife strip 12; buffer working area shape 121; left tearing hand area shape 122; right tearing hand area shape 123; right tearing hand avoidance knife strip 13; lower cutting die 2; second mounting plate 21; positioning hole 211; left tearing hand avoidance knife strip 22; mold frame 3; top seat 31; lifting seat 32; base 33; guide column 34; buffer sheet 4; first release paper 41; left tearing hand part 411; first double-sided tape 42; foam 43; second double-sided tape 44; second release paper 45; right tearing hand part 451; indentation plate 5; indentation knife strip 51; die-cutting plate 6; die-cutting knife strip 61. DETAILED DESCRIPTION

[0034] The embodiment of the present invention provides a processing mold, which overcomes the problem of using the mold separately in different processes in the background technology. Figure 2 and Figure 3 The cutting die shown in the figure easily leads to poor product consistency between the foam after indentation and the release paper after die-cutting, as well as the disadvantage of manually sticking the release paper after die-cutting on the foam after indentation, which leads to low production efficiency. The technical effect of setting asynchronous upper and lower cutting dies, die-cutting the release paper and foam in the same process, making the die-cut cushion product consistent and improving the production efficiency of the cushion is achieved.

[0035] The overall idea of ​​the technical solution of the embodiment of the present invention is as follows:

[0036] according to Figure 1 The shape of the buffer pad with release paper tearing hands on both sides is shown, and an asynchronous upper knife die and a lower knife die are set. The foam coated release paper is pre-made into a buffer sheet. The upper knife die and the lower knife die die-cut the buffer sheet in the same process. The contour knife strip of the upper knife die cuts out the shape of the buffer working area, the shape of the left tearing hand area and the shape of the right tearing hand area on the buffer sheet. The right tearing hand avoids the knife strip to cut off the right tearing hand of the first release paper, but does not cut off the right tearing hand of the second release paper. The left tearing hand of the lower knife die avoids The knife strip cuts off the left tearing hand of the second release paper, but does not cut off the left tearing hand of the first release paper; in order to avoid the knife strip collision when the upper knife die and the lower knife die are closed, a jump distance is set to stagger the position of the left tearing hand avoidance knife strip and the contour knife strip, thereby forming an asynchronous upper knife die and a lower knife die; the buffer sheet performs a translation jump distance after one die-cutting to compensate for the position stagger of the left tearing hand avoidance knife strip and the contour knife strip, and quickly obtains a buffer pad with release paper tearing hands on both sides.

[0037] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0038] See Figures 1 to 12 , a preferred embodiment of the present utility model.

[0039] A processing mold, comprising:

[0040] Upper cutting die 1 and lower cutting die 2;

[0041] The upper cutting die 1 includes a first mounting plate 11, a contour cutting strip 12 and a right tearing hand avoidance cutting strip 13. The contour cutting strip 12 and the right tearing hand avoidance cutting strip 13 are both fixedly arranged on the lower surface of the first mounting plate 11. The shape of the contour cutting strip 12 consists of a buffer working area shape 121, a left tearing hand area shape 122 and a right tearing hand area shape 123. The right tearing hand avoidance cutting strip 13 is located between the buffer working area shape 121 and the right tearing hand area shape 123.

[0042] The lower cutting die 2 includes a second mounting plate 21 and a left tearing hand avoidance blade strip 22. The left tearing hand avoidance blade strip 22 is fixedly arranged on the upper surface of the second mounting plate 21. The left tearing hand avoidance blade strip 22 is located to the left of the contour blade strip 12. When the left tearing hand avoidance blade strip 22 is translated to the right by a jump distance, the left tearing hand avoidance blade strip 22 is upwardly aligned between the buffer working area shape 121 and the left tearing hand area shape 122.

[0043] The first mounting plate 11 and the second mounting plate 21 are respectively located at the upper end and the lower end of the mold frame 3 .

[0044] The beneficial effect of the above technical solution is that an asynchronous upper cutting die 1 and a lower cutting die 2 are set, and the foam is pre-coated with release paper to obtain a buffer sheet 4. The upper cutting die 1 and the lower cutting die 2 are used to die-cut the buffer sheet 4 in the same process. The upper cutting die 1 cuts out the foam 43 required for buffering work and the first release paper 41 with a left tearing hand 411 from the buffer sheet 4. After the buffer sheet 4 undergoes a translation jump, the lower cutting die 2 cuts out the second release paper 45 with a right tearing hand 451 to obtain a buffer pad with release paper tearing hands on both sides. There is no need to manually stick the release paper after die-cutting. The upper cutting die 1 and the lower cutting die 2 die-cut the release paper and foam in the same process, so that the die-cut buffer pad products have good consistency and the production efficiency of the buffer pad is improved.

[0045] The first mounting plate 11 has positioning posts 111 at corners on its lower surface, and the second mounting plate 21 has positioning holes 211 at corners on its upper surface. The positioning posts 111 are aligned with and can be inserted into the positioning holes 211. This technical solution has the beneficial effect of ensuring precise alignment between the positioning posts 111 and the positioning holes 211 during die-cutting operations between the upper and lower cutting dies 1 and 2.

[0046] When the upper and lower cutting dies 1 and 2 are closed, the contour blade 12 contacts the upper surface of the second mounting plate 21. A first gap is formed between the left tear-off blade 22 and the lower surface of the first mounting plate 11. The first gap is equal to the thickness of the first release liner 41. A second gap is formed between the right tear-off blade 13 and the upper surface of the second mounting plate 21. The second gap is equal to the thickness of the second release liner 45. This technical solution has the beneficial effect of not damaging the left tear-off blade 411 of the first release liner 41 or the right tear-off blade 451 of the second release liner 45, facilitating smooth tearing of the release liner during subsequent production.

[0047] The thickness of the first release paper 41 is equal to the thickness of the second release paper 45. For example, the thickness of the first release paper 41 and the thickness of the second release paper 45 are both 0.1 mm.

[0048] The jump distance L is greater than the width W of the contour blade 12. For example, the jump distance L is 60 mm and the width W of the contour blade 12 is 56 mm.

[0049] The shape of the contour blade 12 is concave.

[0050] The mold frame 3 comprises a top seat 31, a lifting seat 32, a base 33, and guide posts 34. The top seat 31 is fixedly connected to the upper ends of the guide posts 34, the lifting seat 32 is slidably connected to the guide posts 34, and the base 33 is fixedly connected to the lower ends of the guide posts 34. The upper cutting die 1 is fixedly connected to the top seat 31, and the lower cutting die 2 is fixedly connected to the lifting seat 32. This technical solution has the beneficial effect of driving the lower cutting die 2 to follow the upper cutting die 1 in a closed manner, thereby die-cutting the buffer sheet 4. The operation of the lifting seat 32 is controlled by a conventional lifting drive device.

[0051] Specific steps for using the processing mold of this utility model:

[0052] S1. Making buffer sheet 4:

[0053] The buffer sheet 4 includes a first release paper 41, a first double-sided tape 42, a foam 43, a second double-sided tape 44, and a second release paper 45 arranged from top to bottom;

[0054] S2, feeding the buffer sheet 4 into the processing mold:

[0055] The processing mold includes an upper cutting mold 1 and a lower cutting mold 2;

[0056] The upper cutting die 1 includes a first mounting plate 11, a contour cutting strip 12 and a right tearing hand avoidance cutting strip 13. The contour cutting strip 12 and the right tearing hand avoidance cutting strip 13 are both fixedly arranged on the lower surface of the first mounting plate 11. The shape of the contour cutting strip 12 consists of a buffer working area shape 121, a left tearing hand area shape 122 and a right tearing hand area shape 123. The right tearing hand avoidance cutting strip 13 is located between the buffer working area shape 121 and the right tearing hand area shape 123.

[0057] The lower cutting die 2 includes a second mounting plate 21 and a left tearing hand avoidance blade strip 22. The left tearing hand avoidance blade strip 22 is fixedly arranged on the upper surface of the second mounting plate 21. The left tearing hand avoidance blade strip 22 is located to the left of the contour blade strip 12. When the left tearing hand avoidance blade strip 22 is translated to the right by a jump distance, the left tearing hand avoidance blade strip 22 is upwardly aligned between the buffer working area shape 121 and the left tearing hand area shape 122.

[0058] The first mounting plate 11 and the second mounting plate 21 are respectively located at the upper end and the lower end of the mold frame 3;

[0059] The buffer sheet 4 passes through between the upper cutting die 1 and the lower cutting die 2;

[0060] S3, the upper cutting die 1 and the lower cutting die 2 are closed:

[0061] The contour blade 12 cuts the buffer sheet 4;

[0062] The right tearing hand avoidance blade 13 sequentially cuts the first release paper 41, the first double-sided tape 42, the foam 43, and the second double-sided tape 44, but does not cut the second release paper 45;

[0063] The left tearing hand avoidance blade 22 sequentially cuts the second release paper 45, the second double-sided tape 44, the foam 43, and the first double-sided tape 42, but does not cut the first release paper 41;

[0064] S4, the upper cutting die 1 and the lower cutting die 2 are separated:

[0065] The contour blade 12, the right tearing hand avoidance blade 13, and the left tearing hand avoidance blade 22 are all separated from the buffer sheet 4;

[0066] S5, the buffer sheet 4 moves rightward or leftward in a horizontal jump distance;

[0067] S6, the upper cutting die 1 and the lower cutting die 2 are closed again and separated again;

[0068] S7 , obtaining a cushioning pad, wherein the first release paper 41 of the cushioning pad has a left tearing handle 411 , and the second release paper 45 of the cushioning pad has a right tearing handle 451 .

[0069] The upper and lower cutting dies die-cut the buffer sheet. Although the contour knife strip cuts the buffer sheet, the contour knife strip is aligned with the middle position of the buffer sheet. Due to the elastic characteristics of the foam, the die-cut buffer pad will move with the buffer sheet. Finally, the buffer pad will be separated from the buffer sheet in the discharge process.

[0070] Working mode of this utility model:

[0071] The cushioning pad is mainly composed of: a first release paper with a left tear handle (thickness of 0.08-0.15mm, preferably 0.12mm), a first double-sided tape (thickness of 0.03-0.07mm, preferably 0.05mm), a foamed polypropylene foam (thickness of 1-3mm, preferably 1.9mm), a second double-sided tape (thickness of 0.03-0.07mm, preferably 0.05mm), and a second release paper with a right tear handle (thickness of 0.08-0.15mm, preferably 0.12mm). The first release paper 41, the first double-sided tape 42, the foam 43, the second double-sided tape 44, and the second release paper 45 are all in sheet form. The protruding part of the release paper is the tear handle, which is mainly used to realize automated production for customers. The release paper is peeled off by clamping the tear handle of the release paper by a robot. The processing die of the present invention is used to cut out the shape of the required buffer pad. This asynchronous processing die achieves the size requirements through the precise cooperation of the upper die 1 and the lower die 2. The tearing hands of the release papers on both sides are half-broken, and the other positions are fully broken, which is achieved by a fixed jump distance. The jump distance is the distance between each die when the die-cutting machine is in operation, and it is also the distance that the buffer sheet 4 is translated after being cut once. When the die-cutting machine is in operation, the upper die 1 and the lower die 2 can be precisely matched through the positioning holes 211 and the positioning columns 111. The upper die 1 and the lower die 2 need to be avoided during the design process. The positions of the blades of the upper die 1 and the lower die 2 are staggered. This is achieved by asynchronously cutting the distance of a product, thereby realizing the integrated forming of the tearing hands on the upper and lower sides of the buffer pad. In this way, there is no need to manually stick the release paper, which can reduce the process and labor while greatly improving the operating efficiency and product consistency.

[0072] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A processing mold, characterized in that: include: Upper cutting die and lower cutting die; The upper cutting die includes a first mounting plate, a contour cutting strip and a right tearing hand avoidance cutting strip, wherein the contour cutting strip and the right tearing hand avoidance cutting strip are both fixedly arranged on the lower surface of the first mounting plate, and the shape of the contour cutting strip is composed of a buffer working area shape, a left tearing hand area shape and a right tearing hand area shape, and the right tearing hand avoidance cutting strip is located between the buffer working area shape and the right tearing hand area shape; The lower cutting die includes a second mounting plate and a left tearing hand avoidance blade strip, wherein the left tearing hand avoidance blade strip is fixedly mounted on the upper surface of the second mounting plate, and is located to the left of the contour blade strip, and when the left tearing hand avoidance blade strip is translated to the right by a jump distance, the left tearing hand avoidance blade strip is aligned upward between the shape of the buffer working area and the shape of the left tearing hand area; The first mounting plate and the second mounting plate are respectively located at the upper end and the lower end of the mold frame.

2. A processing mold according to claim 1, characterized in that: A positioning column is provided at a corner position of the lower surface of the first mounting plate, and a positioning hole is provided at a corner position of the upper surface of the second mounting plate. The positioning column is aligned with and can be inserted into the positioning hole.

3. A processing mold according to claim 1, characterized in that: When the upper cutting die and the lower cutting die are closed, the contour cutting strip contacts the upper surface of the second mounting plate, and a first gap is formed between the left tearing hand avoidance cutting strip and the lower surface of the first mounting plate, and the first gap is the thickness of the first release paper. A second gap is formed between the right tearing hand avoidance cutting strip and the upper surface of the second mounting plate, and the second gap is the thickness of the second release paper.

4. A processing mold according to claim 3, characterized in that: The thickness of the first release paper is equal to the thickness of the second release paper.

5. A processing mold according to claim 1, characterized in that: The jump distance is greater than the width of the contour blade.

6. A processing mold according to claim 1, characterized in that: The shape of the contour blade is a concave shape.

7. A processing mold according to claim 1, characterized in that: The mold frame includes a top seat, a lifting seat, a base and a guide column. The top seat is fixedly connected to the upper end of the guide column, the lifting seat is slidably connected to the guide column, the base is fixedly connected to the lower end of the guide column, the upper cutting die is fixedly connected to the top seat, and the lower cutting die is fixedly connected to the lifting seat.

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