Cushion pad processing technology and equipment

Abstract

The invention relates to the technical field of cushion pad manufacturing, and provides a cushion pad processing technology and equipment, and the cushion pad processing technology comprises the following steps: S1, manufacturing a cushion sheet; s2, the buffer sheet is fed into a machining mold; the machining die 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 lower cutting die comprises a second mounting plate and a left tearing hand part avoiding cutter strip; the buffer sheet penetrates through the space between the upper cutting die and the lower cutting die; s3, closing the upper cutting die and the lower cutting die; s4, the upper cutting die and the lower cutting die are separated; s5, the buffer sheet translates rightwards or leftwards for a jump distance; s6, the upper cutting die and the lower cutting die are closed again and separated again; and S7, obtaining the cushion pad. The die cutting device has the advantages and beneficial effects that release paper and foam are subjected to die cutting in the same working procedure, so that the die-cut cushion pad product is good in consistency, the release paper does not need to be manually pasted after die cutting, the production efficiency of the cushion pad is improved, and the quality of the cushion pad is stable.

Description

Technical Field

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

[0002] Electric vehicles need to ensure their safety during driving or charging and discharging, and avoid spontaneous combustion. Usually, a power battery is composed of several modules, and a module is composed of several cells. Buffer pads are needed inside the battery to play a role in shock absorption and buffering, thereby protecting the cells in the module. Due to market demand, production changes are being promoted, the degree of automation in power battery manufacturing is becoming higher and higher, and higher requirements are also put forward for the state of materials. At present, the structure of the buffer pad used for power batteries is becoming more and more complex.

[0003] See also Figure 1 The cushion pad with release paper tearing fingers on both sides includes, from top to bottom, a first release paper 41 with a left tearing finger 411, a first double-sided adhesive tape 42, a foam 43, a second double-sided adhesive tape 44, and a second release paper 45 with a right tearing finger 451. The foam 43 is polypropylene foam. The traditional processing technology of this cushion pad with release paper tearing fingers on both sides is: foamed polypropylene foam glue coating → polypropylene foam indentation → release paper die cutting → manual release paper pasting. The die cutter used in each process is used separately, refer to 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 in the figure easily leads to poor product consistency between the indented foam and the die-cut release paper; and the die-cut release paper is manually pasted on the indented foam, which has low production efficiency and unstable quality of the cushion pad obtained by manually pasting the release paper.

[0005] Therefore, how to die-cut release paper and foam in the same process to make the die-cut cushion products have good consistency, without the need to manually stick release paper after die-cutting, and improve the production efficiency of cushions, 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 technology for a cushion pad, in which release paper and foam are die-cut in the same process, so that the die-cut cushion pad products have good consistency, and there is no need to manually stick release paper after die-cutting, thereby improving the production efficiency of the cushion pad.

[0007] The present invention is implemented as follows: a processing technology for a cushion pad comprises the following steps:

[0008] S1. Making buffer sheets:

[0009] The buffer sheet comprises a first release paper, a first double-sided adhesive tape, foam, a second double-sided adhesive tape, and a second release paper arranged from top to bottom;

[0010] S2, feeding the buffer sheet into a processing mold:

[0011] The processing mold comprises an upper cutting mold and a lower cutting mold;

[0012] The upper knife die comprises a first mounting plate, a contour knife strip and a right tearing hand avoidance knife strip, wherein the contour knife strip and the right tearing hand avoidance knife strip are both fixedly arranged on the lower surface of the first mounting plate, and the shape of the contour knife 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 knife strip is located between the buffer working area shape and the right tearing hand area shape;

[0013] The lower knife die comprises a second mounting plate and a left tearing hand avoidance knife strip, wherein the left tearing hand avoidance knife strip is fixedly arranged on the upper surface of the second mounting plate, and the left tearing hand avoidance knife strip is located to the left of the contour knife strip, and when the left tearing hand avoidance knife strip is translated to the right by a jump distance, the left tearing hand avoidance knife strip is aligned upward between the shape of the buffer working area and the shape of the left tearing hand area;

[0014] The first mounting plate and the second mounting plate are respectively located at the upper end and the lower end of the mold frame;

[0015] The buffer sheet passes through between the upper cutting die and the lower cutting die;

[0016] S3, the upper cutting die and the lower cutting die are closed:

[0017] The contour blade cuts the buffer sheet;

[0018] The right tearing hand avoidance blade sequentially cuts the first release paper, the first double-sided adhesive tape, the foam, and the second double-sided adhesive tape, but does not cut the second release paper;

[0019] The left tearing hand avoidance knife strip sequentially cuts the second release paper, the second double-sided adhesive tape, the foam, and the first double-sided adhesive tape, but does not cut the first release paper;

[0020] S4, the upper cutting die is separated from the lower cutting die:

[0021] The contour blade, the right tearing hand avoidance blade, and the left tearing hand avoidance blade are all separated from the buffer sheet;

[0022] S5, the buffer sheet is translated to the right or left by a jump distance;

[0023] S6, the upper cutting die and the lower cutting die are closed and separated again;

[0024] S7, obtaining a buffer pad, wherein the first release paper of the buffer pad has a left tearing hand portion, and the second release paper of the buffer pad has a right tearing hand portion.

[0025] Furthermore, the S1 is specifically as follows: S1-1, obtaining a tape coil and a buffer coil;

[0026] The adhesive tape roll comprises a first release paper and a first double-sided adhesive tape arranged from top to bottom;

[0027] The buffer coil comprises foam, a second double-sided adhesive tape, and a second release paper arranged from top to bottom;

[0028] S1-2, sending the adhesive tape coil and the buffer coil into the adhesive coating device;

[0029] The adhesive tape roll is pasted on the buffer roll to obtain a buffer strip, and the buffer strip replaces the buffer sheet.

[0030] Further, in S3, the contour knife strip contacts the upper surface of the second mounting plate, a first gap is formed between the left tearing hand avoidance knife 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 knife strip and the upper surface of the second mounting plate, and the second gap is the thickness of the second release paper.

[0031] Furthermore, the jump distance is greater than the width of the contour blade.

[0032] Furthermore, the contour blade is in a concave shape.

[0033] Furthermore, the foam is expanded polypropylene foam.

[0034] A processing device for a cushion pad, using the processing technology as described above, comprises:

[0035] Feeding device, die-cutting device and discharging device;

[0036] The feeding device comprises a feeding frame, an upper pressing rod and a lower pressing rod, wherein the upper pressing rod and the lower pressing rod are both rotatably arranged on the feeding frame, and the upper pressing rod and the lower pressing rod are used for clamping and feeding the buffer sheet;

[0037] The die-cutting device comprises a die frame and a processing die, the die frame comprises a top seat, a lifting seat, a base and a guide column, the processing die comprises an upper cutting die and a lower cutting die, 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, the lower cutting die is fixedly connected to the lifting seat, and the upper cutting die and the lower cutting die are used for die-cutting the buffer sheet;

[0038] The discharging device includes a discharging frame, a discharging roller, a tearing plate, a receiving shaft and a collection box. The discharging roller is rotatably arranged on the discharging frame, the tearing plate is fixedly arranged on the discharging frame and is also located in front of the discharging roller, the receiving shaft is rotatably arranged on the discharging frame and is also located above the tearing plate, the collection box is fixedly arranged on the discharging frame and is also located below the discharging roller, the gap between the tearing plate and the discharging roller is used to transport the buffer sheet after die-cutting, the receiving shaft is used to roll up the scraps separated from the buffer sheet, and the collection box is used to collect the buffer pad separated from the buffer sheet.

[0039] Furthermore, the upper cutting die includes a first mounting plate, and the lower cutting die includes a second mounting plate. The first mounting plate has a positioning column at a corner of the lower surface, and the second mounting plate has a positioning hole at a corner of the upper surface. The positioning column is aligned with and can be inserted into the positioning hole.

[0040] Furthermore, it also includes a deviation correction device and a glue coating device, and the feeding device also includes a first unloading shaft and a second unloading shaft, the first unloading shaft and the second unloading shaft are both rotatably arranged on the feeding frame, the first unloading shaft is used to install the buffer coil, and the second unloading shaft is used to install the tape coil, the buffer coil and the tape coil both enter the glue coating device, the tape coil is coated on the buffer coil to obtain a buffer long strip, and the buffer long strip passes through the deviation correction device and then enters the feeding device.

[0041] Furthermore, the glue coating device includes a glue coating frame, a glue coating handle, a glue coating shaft, a glue coating support plate, a glue coating tension spring and a glue coating pressure plate. The glue coating shaft is rotatably arranged on the glue coating frame, the glue coating handle is fixedly connected to one end of the glue coating shaft, the glue coating pressure plate is fixedly connected to the glue coating shaft, the glue coating support plate is fixedly connected to the glue coating frame, the glue coating handle is connected to the glue coating frame via a glue coating tension spring, and the glue coating pressure plate and the glue coating support plate are used to stick the tape coil to the buffer coil.

[0042] Compared with the background technology, the advantages and beneficial effects of the present invention are:

[0043] 1. Pre-coat the foam with release paper to obtain a buffer sheet, use a processing mold to die-cut the shape of the buffer pad on the buffer sheet, and use the upper knife die to cut the foam required for buffering work and the first release paper with a left release hand on the buffer sheet. After the buffer sheet is translated and jumped, the lower knife die cuts the second release paper with a right tear hand to obtain a buffer pad with release paper tear hands on both sides. The upper and lower knife dies die-cut the release paper and foam in the same process, so that the die-cut buffer pad products have good consistency, and there is no need to manually stick the release paper after die-cutting, thereby improving the production efficiency of the buffer pad and ensuring the stability of the quality of the buffer pad.

[0044] 2. One side of the foam is first coated with glue and release paper and then rolled into a roll to obtain a buffer roll. The buffer roll and the tape roll meet the conditions for continuous operation of the machine. The buffer roll and the tape roll are continuously discharged and first enter the glue coating device to obtain a buffer strip. The buffer strip continuously enters the processing mold, thereby continuously obtaining a buffer pad with release paper tear fingers on both sides; in comparison, the length of the buffer sheet is shorter, and it is necessary to continuously take the material and then put it into the processing mold. The efficiency of die-cutting the buffer pad with the buffer sheet is low.

[0045] 3. In the glue coating device, the glue coating pressure plate and the glue coating support plate are opened through the glue coating handle to facilitate the adjustment of the buffer coil and the tape coil into the space between the glue coating pressure plate and the glue coating support plate. After the glue coating handle is released, the glue coating tension spring closes the glue coating pressure plate and the glue coating support to make the tape coil adhere to the buffer coil, thereby improving the coating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0047] Figure 1 The invention is a schematic structural diagram of a buffer pad with release paper tear fingers on both sides in the background art.

[0048] Figure 2 It is a schematic diagram of a knife die used in the foam creasing process in the background technology.

[0049] Figure 3 It is a schematic diagram of a knife die used in the release paper die-cutting process in the background technology.

[0050] Figure 4 It is a flow chart of the processing technology of the cushion pad of the present invention.

[0051] Figure 5 The structure of the processing mold in the embodiment of the present invention is schematically shown in FIG. Figure 1 .

[0052] Figure 6 The structure of the processing mold in the embodiment of the present invention is schematically shown in FIG. Figure 2 .

[0053] Figure 7 Schematic diagram of the positions of the contour blade and the right tearing hand avoidance blade on the first mounting plate in an embodiment of the present invention.

[0054] Figure 8 Schematic diagram of the position of the left tearing hand avoiding knife strip on the second mounting plate in an embodiment of the present invention.

[0055] Fig. 9 Schematic diagram of the buffer sheet entering between the upper cutting die and the lower cutting die in an embodiment of the present invention.

[0056] Fig.10 It is a schematic diagram of the contour knife strip cutting the buffer sheet and the right tearing hand avoiding the knife strip from cutting the second release paper in an embodiment of the present invention.

[0057] Fig.11 It 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.

[0058] Fig.12 It 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 an embodiment of the present invention, and the left tearing hand avoidance knife strip after the translation jump distance.

[0059] Fig.13 It is a schematic diagram of the positions of the buffer coil, the tape coil, and the buffer strip in the embodiment of the present invention.

[0060] Fig.14 It is a schematic structural diagram of a processing device for a buffer pad in an embodiment of the present invention.

[0061] Fig.15 It is a structural schematic diagram of a processing mold in an embodiment of the present invention.

[0062] Fig.16 Schematic diagram of the structure of the feeding device in the embodiment of the present invention.

[0063] Fig.17 It is a schematic structural diagram of a discharging device in an embodiment of the present invention.

[0064] Fig.18 It is a schematic structural diagram of a glue coating device in an embodiment of the present invention.

[0065] Reference numerals: upper knife die 1; first mounting plate 11; positioning column 111; contour knife strip 12; buffer work area shape 121; left tearing hand area shape 122; right tearing hand area shape 123; right tearing hand avoiding knife strip 13; lower knife die 2; second mounting plate 21; positioning hole 211; left tearing hand avoiding 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 411; first double-sided adhesive tape 42; foam 43; second double-sided adhesive tape 44; second release paper 45; right tearing hand 451; adhesive tape Belt coil 46; buffer coil 47; buffer long strip 48; creasing plate 5; creasing blade 51; die-cutting plate 6; die-cutting blade 61; feeding device 7; feeding frame 71; upper pressing rod 72; lower pressing rod 73; first unloading shaft 74; second unloading shaft 75; discharging device 8; discharging frame 81; discharging roller 82; tearing plate 83; receiving shaft 84; collecting box 85; correcting device 9; correcting wheel 91; glue coating device 10; glue coating frame 101; glue coating handle 102; glue coating shaft 103; glue coating support plate 104; glue coating tension spring 105; glue coating pressure plate 106. DETAILED DESCRIPTION

[0066] The embodiment of the present invention provides a processing technology for a cushion pad, which overcomes the problem that the cushion pad is used 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, and manually sticking the release paper after die-cutting on the foam after indentation, resulting in low production efficiency and unstable quality of the cushion pad. The upper cutting die and the lower cutting die are used to die-cut the release paper and foam in the same process, so that the die-cut cushion pad products have good consistency, and there is no need to manually stick the release paper after die-cutting, thereby improving the production efficiency of the cushion pad and achieving the technical effect of stabilizing the quality of the cushion pad.

[0067] The overall idea of ​​the technical solution of the embodiment of the present invention is as follows:

[0068] according to Figure 1The 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-coated to obtain 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 avoids the knife strip of the lower knife die. 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 knife strip collision when the upper knife die and the lower knife die are closed, a jump distance is set to make the position of the left tearing hand avoiding knife strip and the contour knife strip staggered, thereby forming an asynchronous upper knife die and a lower knife die; the buffer sheet performs a translation jump distance after a die-cutting operation to compensate for the position staggered between the left tearing hand avoiding knife strip and the contour knife strip, and quickly obtain a buffer pad with release paper tearing hands on both sides.

[0069] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0070] See also Figures 1 to 18 , a preferred embodiment of the present invention.

[0071] A processing technology for a cushion pad comprises the following steps:

[0072] S1. Making buffer sheet 4:

[0073] The buffer sheet 4 includes a first release paper 41, a first double-sided adhesive tape 42, a foam 43, a second double-sided adhesive tape 44, and a second release paper 45 arranged from top to bottom;

[0074] S2, sending the buffer sheet 4 into the processing mold:

[0075] The processing mold comprises an upper cutting mold 1 and a lower cutting mold 2;

[0076] The upper knife die 1 comprises a first mounting plate 11, a contour knife strip 12 and a right tearing hand avoidance knife strip 13, the contour knife strip 12 and the right tearing hand avoidance knife strip 13 are both fixedly arranged on the lower surface of the first mounting plate 11, the shape of the contour knife strip 12 is composed of a buffer working area shape 121, a left tearing hand area shape 122 and a right tearing hand area shape 123, and the right tearing hand avoidance knife strip 13 is located between the buffer working area shape 121 and the right tearing hand area shape 123;

[0077] The lower knife die 2 comprises a second mounting plate 21 and a left tearing hand avoidance knife strip 22, wherein the left tearing hand avoidance knife strip 22 is fixedly arranged on the upper surface of the second mounting plate 21, and the left tearing hand avoidance knife strip 22 is located to the left of the contour knife strip 12, and when the left tearing hand avoidance knife strip 22 is translated to the right by a jump distance, the left tearing hand avoidance knife strip 22 is aligned upward between the buffer working area shape 121 and the left tearing hand area shape 122;

[0078] 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;

[0079] The buffer sheet 4 passes through between the upper cutting die 1 and the lower cutting die 2;

[0080] S3, the upper cutting die 1 and the lower cutting die 2 are closed:

[0081] The contour blade 12 cuts the buffer sheet 4;

[0082] The right tearing hand avoidance blade 13 sequentially cuts the first release paper 41, the first double-sided adhesive tape 42, the foam 43, and the second double-sided adhesive tape 44, but does not cut the second release paper 45;

[0083] The left tearing hand avoidance blade 22 sequentially cuts the second release paper 45, the second double-sided adhesive tape 44, the foam 43, and the first double-sided adhesive tape 42, but does not cut the first release paper 41;

[0084] S4, the upper cutting die 1 is separated from the lower cutting die 2:

[0085] 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;

[0086] S5, the buffer sheet 4 is translated to the right or left for a jump distance;

[0087] S6, the upper cutting die 1 and the lower cutting die 2 are closed again and separated again;

[0088] S7 , obtaining a buffer pad, wherein the first release paper 41 of the buffer pad has a left tearing hand portion 411 , and the second release paper 45 of the buffer pad has a right tearing hand portion 451 .

[0089] The beneficial effect of the above technical scheme is that the foam is pre-coated with release paper to obtain a buffer sheet, and the shape of the buffer pad is die-cut on the buffer sheet using a processing mold. The upper cutting die 1 cuts the foam 43 required for buffering work and the first release paper 41 with a left tearing hand portion 411 on the buffer sheet 4. After the buffer sheet 4 undergoes a translation jump distance, the lower cutting die 2 cuts out the second release paper 45 with a right tearing hand portion 451 to obtain a buffer pad with release paper tearing hands on both sides. 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 product has good consistency, and there is no need to manually stick the release paper after die-cutting, thereby improving the production efficiency of the buffer pad and ensuring the stability of the quality of the buffer pad.

[0090] The S1 is specifically as follows: S1-1, obtaining the tape coil 46 and the buffer coil 47;

[0091] The adhesive tape roll 46 includes a first release paper 41 and a first double-sided adhesive tape 42 arranged from top to bottom;

[0092] The buffer coil 47 includes a foam 43, a second double-sided adhesive 44, and a second release paper 45 arranged from top to bottom;

[0093] S1-2, sending the adhesive tape coil 46 and the buffer coil 47 into the adhesive coating device 10;

[0094] The adhesive tape roll 46 is attached to the buffer roll 47 to obtain a buffer strip 48 , and the buffer strip 48 replaces the buffer sheet 4 .

[0095] The beneficial effect of this technical solution is that the foam 43 is first coated with glue and release paper on one side and then rolled into a roll to obtain a buffer roll 47. The buffer roll 47 and the tape roll 46 meet the conditions for continuous operation of the machine. The buffer roll 47 and the tape roll 46 are continuously discharged and first enter the glue coating device 10 to obtain a buffer strip 48. The buffer strip 48 continuously enters the processing mold, thereby continuously obtaining a buffer pad with release paper tearing fingers on both sides; in comparison, the buffer sheet 4 is shorter in length and needs to be continuously taken and then put into the processing mold, and the efficiency of die-cutting the buffer pad with the buffer sheet 4 is low.

[0096] In S3, the contour blade 12 contacts the upper surface of the second mounting plate 21, a first gap is formed between the left tearing hand avoiding blade 22 and the lower surface of the first mounting plate 11, and the first gap is the thickness of the first release paper 41, and a second gap is formed between the right tearing hand avoiding blade 13 and the upper surface of the second mounting plate 21, and the second gap is the thickness of the second release paper 45. The beneficial effect of this technical solution is that the left tearing hand 411 of the first release paper 41 and the right tearing hand 451 of the second release paper 45 are not damaged, which helps to smoothly tear off the release paper in subsequent production.

[0097] 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.

[0098] 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.

[0099] The shape of the contour blade 12 is a concave shape.

[0100] The foam 43 is expanded polypropylene foam.

[0101] A processing device for a cushion pad, using the processing technology as described above, comprises:

[0102] A feeding device 7, a die-cutting device and a discharging device 8;

[0103] The feeding device 7 includes a feeding frame 71, an upper pressing rod 72 and a lower pressing rod 73. The upper pressing rod 72 and the lower pressing rod 73 are both rotatably arranged on the feeding frame 71. The upper pressing rod 72 and the lower pressing rod 73 are used to clamp and feed the buffer sheet 4.

[0104] The die-cutting device includes a die frame 3 and a processing die, the die frame 3 includes a top seat 31, a lifting seat 32, a base 33 and a guide column 34, the processing die includes an upper cutting die 1 and a lower cutting die 2, the top seat 31 is fixedly connected to the upper end of the guide column 34, the lifting seat 32 is slidably connected to the guide column 34, the base 33 is fixedly connected to the lower end of the guide column 34, the upper cutting die 1 is fixedly connected to the top seat 31, the lower cutting die 2 is fixedly connected to the lifting seat 32, and the upper cutting die 1 and the lower cutting die 2 are used for die-cutting the buffer sheet 4;

[0105] The discharging device 8 includes a discharging frame 81, a discharging roller 82, a tearing plate 83, a receiving shaft 84 and a collection box 85. The discharging roller 82 is rotatably set on the discharging frame 81, the tearing plate 83 is fixedly set on the discharging frame 81, and is also located in front of the discharging roller 82. The receiving shaft 84 is rotatably set on the discharging frame 81, and is also located above the tearing plate 83. The collection box 85 is fixedly set on the discharging frame 81, and is also located below the discharging roller 82. The gap between the tearing plate 83 and the discharging roller 82 is used to transport the buffer sheet 4 after die-cutting. The receiving shaft 84 is used to roll up the scraps separated from the buffer sheet 4. The collection box 85 is used to collect the buffer pad separated from the buffer sheet 4. The beneficial effect of this technical solution is that the upper pressing rod 72 and the lower pressing rod 73 ensure the accuracy of the material feeding; the lower cutting die 2 is driven by the lifting seat 32 to follow the upper cutting die 1 to close, so as to die-cut the buffer sheet 4. The operation state of the lifting seat 32 is controlled by the lifting drive device of the prior art; the buffer sheet 4 after die-cutting passes through the gap between the tearing plate 83 and the discharge roller 82, and the scraps and the buffer pad are transported in different directions, so that the discharge roller 82 brings the buffer pad out from the buffer sheet 4, the scraps are rolled up by the receiving shaft 84, and the buffer pad falls into the collecting box 85.

[0106] 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, and finally the buffer pad will be separated from the buffer sheet in the discharging device.

[0107] The upper die 1 includes a first mounting plate 11, and the lower die 2 includes a second mounting plate 21. The first mounting plate 11 has a positioning column 111 at a corner of the lower surface, and the second mounting plate 21 has a positioning hole 211 at a corner of the upper surface. The positioning column 111 is aligned with and can be inserted into the positioning hole 211. The beneficial effect of this technical solution is that when the upper die 1 and the lower die 2 perform die-cutting operations, the positioning column 111 and the positioning hole 211 can be precisely matched.

[0108] It also includes a deflection correction device 9 and a glue coating device 10. The feeding device 7 also includes a first unloading shaft 74 and a second unloading shaft 75. The first unloading shaft 74 and the second unloading shaft 75 are both rotatably arranged on the feeding frame 71. The first unloading shaft 74 is used to install the buffer coil 47, and the second unloading shaft 75 is used to install the adhesive tape coil 46. The buffer coil 47 and the adhesive tape coil 46 both enter the glue coating device 10. The adhesive tape coil 46 is attached to the buffer coil 47 to obtain a buffer strip 48. The buffer strip 48 passes through the deflection correction device 9 and then enters the feeding device 7. The beneficial effect of this technical solution is that the deflection correction device 9 has two deflection correction wheels 91, and the buffer strip 48 passes between the two deflection correction wheels 91. The deflection correction device 9 stabilizes the feeding position, maintains the consistency of the feeding, and helps to improve the quality of the product.

[0109] The glue coating device 10 includes a glue coating frame 101, a glue coating handle 102, a glue coating shaft 103, a glue coating support plate 104, a glue coating tension spring 105 and a glue coating pressure plate 106. The glue coating shaft 103 is rotatably arranged on the glue coating frame 101, the glue coating handle 102 is fixedly connected to one end of the glue coating shaft 103, the glue coating pressure plate 106 is fixedly connected to the glue coating shaft 103, the glue coating support plate 104 is fixedly connected to the glue coating frame 101, the glue coating handle 102 is connected to the glue coating frame 101 via a glue coating tension spring 105, and the glue coating pressure plate 106 and the glue coating support plate 104 are used to stick the tape coil 46 to the buffer coil 47. The beneficial effect of this technical solution is that in the glue coating device 10, the glue coating pressure plate 106 and the glue coating support plate 104 are opened by the glue coating handle 102, so that the buffer coil 47 and the tape coil 46 are easily adjusted to enter between the glue coating pressure plate 106 and the glue coating support plate 104. After the glue coating handle 102 is released, the glue coating tension spring 105 closes the glue coating pressure plate 106 and the glue coating support, so that the tape coil 46 is attached to the buffer coil 47, thereby improving the coating effect.

[0110] The working mode of the present invention is:

[0111] An integrated production method is adopted, and the foamed polypropylene foam is first coated with glue on one side and rolled into a coil. Then, during the production process, the other side of the foamed polypropylene foam is coated with glue and the tape roll is rolled. After the die-cutting process, the finished product is cut out. The buffer pad is mainly composed of: a first release paper with a left tearing handle (thickness is 0.08-0.15mm, preferably 0.12mm), a first double-sided adhesive (thickness is 0.03-0.07mm, preferably 0.05mm), a foamed polypropylene foam (thickness is 1-3mm, preferably 1.9mm), a second double-sided adhesive (thickness is 0.03-0.07mm, preferably 0.05mm), and a second release paper with a right tearing handle (thickness is 0.08-0.15mm, preferably 0.12mm). The first release paper 41, the first double-sided adhesive 42, the foam 43, the second double-sided adhesive 44, and the second release paper 45 are all in sheet form. The protruding part of the release paper is the tearing hand, which is mainly used for customers to realize automated production. The release paper is peeled off by clamping the tearing hand of the release paper by a robot. The raw material of the expanded polypropylene foam is in the state of a sheet, and can also be rolled into a coil state when coated with glue, that is, a buffer coil 47. The processing die of the present invention is used to cut out the shape of the required buffer pad. This asynchronous processing die meets the size requirements through the precise cooperation of the upper die 1 and the lower die 2. The tearing hand positions of the release papers on both sides are half-broken, and the other positions are fully broken, which is completed 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 hole 211 and the positioning column 111. The upper cutting die 1 and the lower cutting die 2 need to be avoided during the design process. The positions of the cutting strips of the upper cutting die 1 and the lower cutting die 2 are staggered. This is achieved by asynchronously adjusting 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 release paper, which can reduce the process and labor while greatly improving the operating efficiency and product consistency.

[0112] Although the specific implementation modes of the present invention are described above, those skilled in the art should understand that the specific implementation modes described are only 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 in the scope of protection of the claims of the present invention.

Claims

1. A processing technology for a cushion pad, characterized in that: The following steps are involved: S1. Making buffer sheets: The buffer sheet comprises a first release paper, a first double-sided adhesive tape, foam, a second double-sided adhesive tape, and a second release paper arranged from top to bottom; S2, feeding the buffer sheet into a processing mold: The processing mold comprises an upper cutting mold and a lower cutting mold; The upper knife die comprises a first mounting plate, a contour knife strip and a right tearing hand avoidance knife strip, wherein the contour knife strip and the right tearing hand avoidance knife strip are both fixedly arranged on the lower surface of the first mounting plate, and the shape of the contour knife 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 knife strip is located between the buffer working area shape and the right tearing hand area shape; The lower knife die comprises a second mounting plate and a left tearing hand avoidance knife strip, wherein the left tearing hand avoidance knife strip is fixedly arranged on the upper surface of the second mounting plate, and the left tearing hand avoidance knife strip is located to the left of the contour knife strip, and when the left tearing hand avoidance knife strip is translated to the right by a jump distance, the left tearing hand avoidance knife 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; The buffer sheet passes through between the upper cutting die and the lower cutting die; S3, the upper cutting die and the lower cutting die are closed: The contour blade cuts the buffer sheet; The right tearing hand avoidance blade sequentially cuts the first release paper, the first double-sided adhesive tape, the foam, and the second double-sided adhesive tape, but does not cut the second release paper; The left tearing hand avoidance knife strip sequentially cuts the second release paper, the second double-sided adhesive tape, the foam, and the first double-sided adhesive tape, but does not cut the first release paper; S4, the upper cutting die is separated from the lower cutting die: The contour blade, the right tearing hand avoidance blade, and the left tearing hand avoidance blade are all separated from the buffer sheet; S5, the buffer sheet is translated to the right or left by a jump distance; S6, the upper cutting die and the lower cutting die are closed and separated again; S7, obtaining a buffer pad, wherein the first release paper of the buffer pad has a left tearing hand portion, and the second release paper of the buffer pad has a right tearing hand portion.

2. The processing technology of a cushion pad according to claim 1, characterized in that: The S1 specifically includes: S1-1, obtaining a tape coil and a buffer coil; The adhesive tape roll comprises a first release paper and a first double-sided adhesive tape arranged from top to bottom; The buffer coil comprises foam, a second double-sided adhesive tape, and a second release paper arranged from top to bottom; S1-2, sending the adhesive tape coil and the buffer coil into the adhesive coating device; The adhesive tape roll is pasted on the buffer roll to obtain a buffer strip, and the buffer strip replaces the buffer sheet.

3. The processing technology of a cushion pad according to claim 1, characterized in that: In S3, the contour knife strip contacts the upper surface of the second mounting plate, a first gap is formed between the left tearing hand avoidance knife 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 knife strip and the upper surface of the second mounting plate, and the second gap is the thickness of the second release paper.

4. The processing technology of a cushion pad according to claim 1, characterized in that: The jump distance is greater than the width of the contour blade.

5. The processing technology of a buffer pad according to claim 1, characterized in that: The shape of the contour blade is a concave shape.

6. The processing technology of a buffer pad according to claim 1, characterized in that: The foam is expanded polypropylene foam.

7. A processing device for a cushion pad, characterized in that: The processing method according to claim 1 comprises: Feeding device, die-cutting device and discharging device; The feeding device comprises a feeding frame, an upper pressing rod and a lower pressing rod, wherein the upper pressing rod and the lower pressing rod are both rotatably arranged on the feeding frame, and the upper pressing rod and the lower pressing rod are used for clamping and feeding the buffer sheet; The die-cutting device comprises a die frame and a processing die, the die frame comprises a top seat, a lifting seat, a base and a guide column, the processing die comprises an upper cutting die and a lower cutting die, 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, the lower cutting die is fixedly connected to the lifting seat, and the upper cutting die and the lower cutting die are used for die-cutting the buffer sheet; The discharging device includes a discharging frame, a discharging roller, a tearing plate, a receiving shaft and a collection box. The discharging roller is rotatably arranged on the discharging frame, the tearing plate is fixedly arranged on the discharging frame and is also located in front of the discharging roller, the receiving shaft is rotatably arranged on the discharging frame and is also located above the tearing plate, the collection box is fixedly arranged on the discharging frame and is also located below the discharging roller, the gap between the tearing plate and the discharging roller is used to transport the buffer sheet after die-cutting, the receiving shaft is used to roll up the scraps separated from the buffer sheet, and the collection box is used to collect the buffer pad separated from the buffer sheet.

8. The processing equipment for a cushion pad according to claim 7, characterized in that: The upper cutting die includes a first mounting plate, and the lower cutting die includes a second mounting plate. The first mounting plate has a positioning column at a corner of the lower surface, and the second mounting plate has a positioning hole at a corner of the upper surface. The positioning column is aligned with and can be inserted into the positioning hole.

9. The processing equipment for a cushion pad according to claim 7, characterized in that: It also includes a deviation correction device and a glue coating device, and the feeding device also includes a first unloading shaft and a second unloading shaft, the first unloading shaft and the second unloading shaft are both rotatably arranged on the feeding frame, the first unloading shaft is used to install the buffer coil, and the second unloading shaft is used to install the tape coil, the buffer coil and the tape coil both enter the glue coating device, the tape coil is coated on the buffer coil to obtain a buffer long strip, and the buffer long strip passes through the deviation correction device and then enters the feeding device.

10. The processing equipment for a cushion pad according to claim 9, characterized in that: The glue coating device includes a glue coating frame, a glue coating handle, a glue coating shaft, a glue coating support plate, a glue coating tension spring and a glue coating pressure plate. The glue coating shaft is rotatably arranged on the glue coating frame, the glue coating handle is fixedly connected to one end of the glue coating shaft, the glue coating pressure plate is fixedly connected to the glue coating shaft, the glue coating support plate is fixedly connected to the glue coating frame, the glue coating handle is connected to the glue coating frame via a glue coating tension spring, and the glue coating pressure plate and the glue coating support plate are used to stick the tape coil to the buffer coil.

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