Cushion pad folding material production process method

Abstract

The invention relates to the technical field of cushion pad processing, and provides a cushion pad folding material production process method which comprises the following steps: S1, manufacturing a primary material strip; s2, replacing release paper of the double-sided tape with a protective film; s3, width cutting is carried out; s4, cutting into slices; s5, buffering pad asynchronization; s6, taking away the PET matt film; s7, cutting the width of a finished product; and S8, the cushion pad is coated with a film, and a cushion pad folding material finished product is obtained. The production method has the advantages that the production raw materials of the cushion folding material enter the corresponding laminating device and the cutting die device according to the specified sequence, the cushion is automatically cut from a strip shape to a sheet shape, the sheet-shaped cushion is arranged at intervals in an asynchronous transportation mode, and the strip-shaped white opaque release paper and the strip-shaped white transparent PET matt film are arranged on the two sides of the sheet-shaped cushion, so that the production efficiency is improved, and the production cost is reduced. The production efficiency of the cushion folding material is improved through a one-time forming operation mode, the production cost is reduced, the production period is shortened, and the product quality is improved.

Description

Technical Field

[0001] This invention relates to the field of cushioning pad processing technology, and more specifically to a process method for producing folded cushioning pad material. Background Technology

[0002] Microporous polypropylene (MPP) foam, with its excellent impact resistance and compressive energy absorption properties, is an ideal choice for power battery cushioning pads. This material provides comprehensive protection for the power battery, preventing damage from external impacts and vibrations. Simultaneously, its good thermal insulation properties make it a preferred material for battery insulation layers, helping to improve the battery's thermal management efficiency, ensuring stable operation within a suitable temperature range, and thus extending its service life.

[0003] like Figure 1 As shown, traditional cushioning pad products are sheet materials. From top to bottom, the layers are: first, a sheet of white transparent PET matte film 51; second, a sheet of first double-sided adhesive tape strip 52; third, a sheet of polypropylene microporous foam (MPP) cushioning pad 53; fourth, a sheet of second double-sided adhesive tape strip 54; and fifth, a sheet of white opaque release paper 55. In use, each cushioning pad product is individually gripped by a robotic arm. The outermost matte film and release paper need to be torn off. Finally, the robotic arm's gripping panel uses suction to pick up the first double-sided adhesive tape strip and removes it. The first double-sided adhesive tape strip, the polypropylene microporous foam (MPP) cushioning pad, and the second double-sided adhesive tape strip are simultaneously moved to the battery mounting area. The robotic arm's gripping panel has a Teflon-like material that does not adhere to the double-sided adhesive tape strip. A cushioning pad made of polypropylene microporous foam (MPP) is attached to the surface of a power battery using a second double-sided adhesive strip. A robotic arm's gripping panel releases the first double-sided adhesive strip; then another power battery or other protective casing is attached to the first double-sided adhesive strip. Multiple cushioning pads can be attached to the surface of a single power battery. However, this traditional cushioning pad product significantly impacts assembly on automated production lines, causing frequent equipment alarms and adjustments.

[0004] With the widespread application of automation technology, and in order to meet the technical requirements of customers' automated production lines, improve customer production efficiency, maintain company competitiveness, reduce costs, and improve product quality, this cushioning pad folding material was developed. For example... Figure 2 and Figure 3As shown, this cushioning pad folding material consists of the following layers from top to bottom: the first layer is a strip of white transparent matte PET film 61; the second layer is multiple strips of double-sided adhesive tape arranged at intervals; the third layer is a sheet of polypropylene microporous foam (MPP) cushioning pad 53 arranged at intervals; the fourth layer is a strip of second double-sided adhesive tape arranged at intervals; and the fifth layer is a strip of white opaque release paper 62. This cushioning pad folding material has designated folding spaces 63 at specified intervals, with the length of the folding spaces exceeding the length of the intervals. These folding spaces 63 allow the product to be transformed between a long strip shape and a folded shape. After folding, this cushioning pad folding material is placed in a material crate. In use, the feeding equipment tears the outermost strip of white transparent PET matte film from the starting position of the folded cushioning pad, thereby exposing the first double-sided adhesive strip, the polypropylene microporous foam (MPP) cushioning pad, and the second double-sided adhesive strip one by one. The robotic arm's gripping panel sequentially sucks up the first double-sided adhesive strip using a suction method and then removes it, thus separating the first double-sided adhesive strip, the first polypropylene microporous foam (MPP) cushioning pad, and the second double-sided adhesive strip from the outermost strip of white opaque release paper; simultaneously, the outermost strip of white opaque release paper is collected by the feeding equipment. The robotic arm then attaches the polypropylene microporous foam (MPP) cushioning pad to the surface of the power battery using the adhesive strip. Afterward, the robotic arm picks up the second adhesive strip and the cushioning pad. With just one tearing of the strip of white transparent PET matte film, the feeding equipment retracts the film at the starting position, allowing the robotic arm to sequentially feed and assemble the cushioning pads.

[0005] The production of this cushioning pad folding material using existing processing equipment such as coating machines and die-cutting machines has the following disadvantages: the raw materials for producing the cushioning pad folding material are transported and transferred manually between multiple processing equipment, which is difficult to process, has low production efficiency, unstable quality, large equipment adjustment losses at each process, extremely high defect rate, high production cost, and long production cycle.

[0006] Therefore, how to improve the production efficiency of cushioning pad folding material, reduce production costs, shorten the production cycle, and improve product quality through a one-time molding process is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a production process method for cushioning pad folded material, which improves the production efficiency of cushioning pad folded material, reduces production costs, shortens the production cycle, and improves product quality through a one-time molding operation.

[0008] This invention is achieved as follows: a process for producing cushioning pad folded material, comprising the following steps:

[0009] S1. Making primary material tape: Feed the cushioning pad, the first double-sided tape, and the second double-sided tape into the first production bonding device. The first production bonding device attaches the adhesive strip of the first double-sided tape to the upper surface of the cushioning pad and attaches the adhesive strip of the second double-sided tape to the lower surface of the cushioning pad to obtain the primary material tape.

[0010] S2. Replace the release paper of the double-sided tape with a protective film: feed the primary tape into the second production bonding device, between the first production bonding device and the second production bonding device, peel the release paper of the second double-sided tape from the adhesive strip of the second double-sided tape, and then rewind the release paper of the second double-sided tape.

[0011] The first transparent PET protective film is fed into the second production laminating device, which then applies the first transparent PET protective film to the adhesive strip of the second double-sided tape.

[0012] At the outlet of the second production bonding device, the release paper of the first double-sided tape is peeled off from the adhesive strip of the first double-sided tape, and then the release paper of the first double-sided tape is wound up. Then, the first white transparent PET matte film is attached to the adhesive strip of the first double-sided tape through the pinch roller assembly to obtain the secondary material tape.

[0013] S3. Width cutting: The secondary strip is fed into the third production die device, which cuts the first white transparent PET matte film, the tape of the first double-sided adhesive tape, the buffer pad, and the adhesive strip of the second double-sided adhesive tape on both sides of the secondary strip, but does not cut the first transparent PET protective film, to obtain a tertiary strip of a set width. Then, the buffer pads located on both sides of the tertiary strip are wound up to cut off the edge waste.

[0014] S4. Cutting into sheets: The three-level material strip is fed into the fourth production die device. The fourth production die device sequentially cuts the first white transparent PET matte film, the adhesive strip of the first double-sided tape, the cushioning pad, and the adhesive strip of the second double-sided tape, but does not cut the first transparent PET protective film. The first white transparent PET matte film, the adhesive strip of the first double-sided tape, the cushioning pad, and the adhesive strip of the second double-sided tape are all cut from strips into sheets to obtain the four-level material strip.

[0015] S5, Asynchronous buffer pad: The four-stage material strip is sequentially fed into the fifth production bonding device and the sixth production bonding device. A stripping plate is installed at the outlet of the fifth production bonding device, and a receiving roller is installed at the inlet of the sixth production bonding device.

[0016] The white opaque release paper is fed into the receiving roller and the sixth production bonding device. When the fourth-grade material belt passes the peeling plate, the peeling plate peels the first transparent PET protective film from the adhesive strip of the sheet-like second double-sided adhesive tape. The sheet-like buffer pads move asynchronously from the peeling plate position to the receiving roller position one by one, and the sheet-like buffer pads are attached to the white opaque release paper through the adhesive strip of the sheet-like second double-sided adhesive tape to obtain the fifth-grade material belt.

[0017] S6. Remove the PET matte film: Feed both the single-sided tape and the fifth-grade material tape into the sixth production laminating device. The sixth production laminating device applies the single-sided tape to the sheet-like first white transparent PET matte film, and then winds up the single-sided tape. The single-sided tape removes the sheet-like first white transparent PET matte film from the adhesive strip of the sheet-like first double-sided tape to obtain the sixth-grade material tape.

[0018] S7. Finished product width cutting: The second transparent PET protective film and the sixth-level material strip are fed into the seventh production die device. The seventh production die device attaches the second transparent PET protective film to the white opaque release paper and cuts the white opaque release paper to the width of the finished folded material, but does not cut the second transparent PET protective film.

[0019] At the outlet of the seventh die-cutting device, the second transparent PET protective film is wound up, the second transparent PET protective film is detached from the white opaque release paper, and the second transparent PET protective film also removes the white opaque release paper cutting and trimming waste to obtain the seventh grade material strip;

[0020] S8. Cushion pad coating to obtain the finished folded cushion pad material: The second white transparent PET matte film and the seventh-grade material strip are both fed into the eighth production laminating device. The eighth production laminating device makes the second white transparent PET matte film cover the adhesive strip of the sheet-like first double-sided adhesive tape. The second white transparent PET matte film and the white opaque release paper are the same width and both are strip-shaped to obtain the finished product, and then folded and collected.

[0021] Furthermore, the cushioning pad is a polypropylene microporous foam cushioning pad.

[0022] Furthermore, the pinch roller assembly includes a first roller, a second roller, a first support arm, a second support arm, a first support rod, and a second support rod. The first roller and the second roller are arranged vertically. The first roller is rotatably connected to one end of the first support arm, and the other end of the first support arm is fixedly connected to the first support rod. The second roller is rotatably connected to one end of the second support arm, and the other end of the second support arm is fixedly connected to the second support rod. The support of the third production die-cutting device has multiple vertically arranged arc-shaped adjustment slots. The first support rod and the second support rod are respectively fixedly arranged in two of the arc-shaped adjustment slots.

[0023] Furthermore, in S5, the moving speed of the white opaque release paper is greater than the moving speed of the sheet-like buffer pad from the peeling plate position to the receiving roller position, and the distance between the peeling plate and the receiving roller is less than the length of the sheet-like buffer pad, forming the sheet-like buffer pads arranged at intervals.

[0024] Furthermore, in S5, within a set period, the moving speed of the white opaque release paper is first increased, and after the folding time, the moving speed of the white opaque release paper is restored to form a folded space.

[0025] Furthermore, a guide rail is provided at the inlet of the first production bonding device, and the buffer pad is wound around the guide rail.

[0026] Furthermore, the outlet of the eighth production bonding device is provided with a conveyor belt, and the finished folded cushioning material is placed on the conveyor belt.

[0027] Furthermore, the buffer pad, the first double-sided adhesive tape, and the second double-sided adhesive tape are first installed in roll form on the first feeding shaft, the second feeding shaft, and the third feeding shaft, respectively, and then fed into the first production bonding device.

[0028] After the release paper of the second double-sided tape leaves the first production bonding device, it is wound up by the first take-up shaft;

[0029] The first transparent PET protective film is first installed in a roll on the fourth feeding shaft, and then fed into the second production laminating device;

[0030] After the release paper of the first double-sided film tape leaves the second production laminating device, it is wound up by the second take-up shaft;

[0031] The first white transparent PET matte film is first installed in a roll state on the fifth feeding shaft, and then fed into the pinch roller assembly;

[0032] After the buffer pads on both sides of the three-stage material strip are cut and trimmed, the waste material is wound up by the third take-up shaft and the fourth take-up shaft respectively after leaving the third production die device.

[0033] The white opaque release paper is first installed in a roll state on the sixth feed shaft, and then fed into the receiving roller;

[0034] After the first transparent PET protective film passes through the peeling plate, it is wound up by the fifth take-up shaft;

[0035] The single-sided tape is first installed in a roll on the seventh feeding shaft, and then fed into the sixth production laminating device. After leaving the sixth production laminating device, the single-sided tape is wound up by the sixth taking-up shaft.

[0036] The second transparent PET protective film is first installed in a roll state on the eighth feeding shaft, and then fed into the seventh production die device. After leaving the seventh production die device, the second transparent PET protective film is wound up by the seventh taking-up shaft.

[0037] The second white transparent PET matte film is first installed in a roll on the ninth feeding shaft, and then fed into the eighth production laminating device.

[0038] Compared with the prior art, the beneficial effects or advantages of the technical solution of the present invention are as follows:

[0039] The raw materials for producing cushioning pad folding material are fed into the corresponding laminating and die-cutting devices in a specified order. The cushioning pads are automatically cut from strips into sheets and arranged at intervals by asynchronous transport. Strips of white opaque release paper and strips of white transparent PET matte film are placed on both sides of the sheet cushioning pads. This one-time forming process improves the production efficiency of cushioning pad folding material, reduces production costs, shortens the production cycle, and improves product quality. Attached Figure Description

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0041] Figure 1 This is a structural diagram of a traditional cushioning pad product in the background art.

[0042] Figure 2 This is a schematic diagram of the structure of the cushioning pad folded material in the background technology.

[0043] Figure 3 This is a schematic diagram of the folded shape of the cushioning pad folded material in the background art.

[0044] Figure 4 This is a flowchart of a process for producing a cushioning pad folding material according to the present invention.

[0045] Figure 5 This is a schematic diagram showing the positions of the bonding device, die-cutting device, feeding shaft, receiving shaft, guide device, and conveyor belt in this invention.

[0046] Figure 6 This is a schematic diagram showing the positions of the bonding device, the die-cutting device, the clamping roller assembly, the stripping plate, and the receiving roller in this invention.

[0047] Figure 7 This is a schematic diagram of the pinch roller assembly in this invention.

[0048] Figure 8 This is a schematic diagram of the structure of the stripping plate and the receiving roller in this invention.

[0049] Figure 9 This is a schematic diagram of the primary strip structure in this invention.

[0050] Figure 10 This is a schematic diagram of the secondary material strip structure in this invention.

[0051] Figure 11 This is a schematic diagram of the three-stage material strip structure in this invention.

[0052] Figure 12 This is a schematic diagram of the structure of the four-stage material strip in this invention.

[0053] Figure 13 This is a schematic diagram of the structure of the five-stage material strip in this invention.

[0054] Figure 14 This is a schematic diagram of the six-stage conveyor belt structure in this invention.

[0055] Figure 15 This is a schematic diagram of the structure of the seven-stage conveyor belt in this invention.

[0056] Figure 16 This is a schematic diagram of the finished product of the cushioning pad folding material in this invention.

[0057] Reference numerals: 1. Cushion pad; 11. First double-sided tape; 12. Second double-sided tape; 13. First transparent PET protective film; 14. First white transparent matte PET film; 141. Sheet-shaped first white transparent matte PET film; 15. Opaque release paper; 16. Single-sided tape; 17. Second transparent PET protective film; 18. Second white transparent matte PET film; 19. Cushion pad trimming waste; 110. White opaque release paper trimming waste; 120. Finished product;

[0058] Production frame 2; First production bonding device 21; Deviation corrector 211; Second production bonding device 22; Third production die-cutting device 23; Pinch roller assembly 231; First roller 2311; Second roller 2312; First support arm 2313; Second support arm 2314; First support rod 2315; Second support rod 2316; Fourth production die-cutting device 24; Fifth production bonding device 25; Stripping plate 251; Sixth production bonding device 26; Material receiving roller 261; Seventh production die-cutting device 27; Eighth production bonding device 28; Conveyor belt 281;

[0059] First feeding shaft 31; Second feeding shaft 32; Third feeding shaft 33; Fourth feeding shaft 34; Fifth feeding shaft 35; Sixth feeding shaft 36; Seventh feeding shaft 37; Eighth feeding shaft 38; Ninth feeding shaft 39;

[0060] First receiving shaft 41; Second receiving shaft 42; Third receiving shaft 43; Fourth receiving shaft 44; Fifth receiving shaft 45; Sixth receiving shaft 46; Seventh receiving shaft 47.

[0061] 51. Sheet-shaped white transparent matte PET film; 52. Sheet-shaped first double-sided adhesive tape strip; 53. Sheet-shaped cushioning pad; 54. Sheet-shaped second double-sided adhesive tape strip; 55. Sheet-shaped white opaque release paper;

[0062] 61. Strip of white transparent matte PET film; 62. Strip of white opaque release paper; 63. Folded space. Detailed Implementation

[0063] This invention provides a manufacturing process for folded cushioning material. The overall technical solution is as follows:

[0064] The first, second, third, fourth, fifth, sixth, seventh, and eighth production laminating devices are arranged sequentially from front to back on the production frame. The raw materials for producing the cushioning pad folding material include cushioning pads, first double-sided adhesive tape, second double-sided adhesive tape, first transparent PET protective film, second transparent PET protective film, first white transparent matte PET film, second white transparent matte PET film, single-sided adhesive tape, and white opaque release paper. These raw materials are fed into the corresponding laminating and cutting devices in a specified order. Waste materials generated during winding are collected, and the finished cushioning pad folding material is obtained through a one-step forming process. This improves the production efficiency of the cushioning pad folding material, reduces material waste, and shortens the production cycle. The precise design and coordinated use of multiple cutting dies enhance product quality and consistency.

[0065] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0066] See Figures 1 to 16 The preferred embodiment of the present invention.

[0067] A method for producing cushioning pad folding material includes the following steps:

[0068] S1. Making primary material tape: Feed the cushioning pad 1, the first double-sided tape 11, and the second double-sided tape 12 into the first production bonding device 21. The first production bonding device 21 causes the adhesive strip of the first double-sided tape 11 to be attached to the upper surface of the cushioning pad 1, and also causes the adhesive strip of the second double-sided tape 12 to be attached to the lower surface of the cushioning pad 1, thus obtaining the primary material tape.

[0069] S2. Replace the release paper of the double-sided tape with a protective film: feed the primary material tape into the second production bonding device 22, between the first production bonding device 21 and the second production bonding device 22, peel the release paper of the second double-sided tape 12 from the adhesive strip of the second double-sided tape 12, and then rewind the release paper of the second double-sided tape 12.

[0070] The first transparent PET protective film 13 is fed into the second production laminating device 22, and the second production laminating device 22 causes the first transparent PET protective film 13 to be attached to the adhesive strip of the second double-sided tape 12.

[0071] At the outlet of the second production bonding device 22, the release paper of the first double-sided tape 11 is peeled off from the adhesive strip of the first double-sided tape 11, and then the release paper of the first double-sided tape 11 is wound up. Then the first white transparent PET matte film 14 is attached to the adhesive strip of the first double-sided tape 11 through the pinch roller assembly 231 to obtain the secondary material tape.

[0072] S3. Width cutting: The secondary strip is fed into the third production die device 23. The third production die device 23 cuts the first white transparent PET matte film 14, the first double-sided adhesive tape 11, the buffer pad 1, and the second double-sided adhesive tape 12 on both sides of the secondary strip, but does not cut the first transparent PET protective film 13, to obtain a tertiary strip of a set width. Then, the buffer pads located on both sides of the tertiary strip are wound up to remove edge waste 19.

[0073] S4. Cutting into sheets: The three-level material strip is fed into the fourth production die device 24. The fourth production die device 24 sequentially cuts the first white transparent PET matte film 14, the adhesive strip of the first double-sided tape 11, the buffer pad 1, and the adhesive strip of the second double-sided tape 12, but does not cut the first transparent PET protective film 13. The first white transparent PET matte film 14, the adhesive strip of the first double-sided tape 11, the buffer pad 1, and the adhesive strip of the second double-sided tape 12 are all cut from strips into sheets to obtain the four-level material strip.

[0074] S5, Asynchronous buffer pad: The four-stage material strip is sequentially fed into the fifth production bonding device 25 and the sixth production bonding device 26. A stripping plate 251 is installed at the outlet of the fifth production bonding device 25, and a receiving roller 261 is installed at the inlet of the sixth production bonding device 26.

[0075] The white opaque release paper 15 is fed into the receiving roller 261 and the sixth production bonding device 26. When the fourth-level material belt passes the peeling plate 251, the peeling plate 251 peels the first transparent PET protective film 13 from the adhesive strip 54 of the sheet-like second double-sided adhesive tape. The sheet-like buffer pads 53 are moved asynchronously from the position of the peeling plate 251 to the position of the receiving roller 261, and the sheet-like buffer pads 53 are attached to the white opaque release paper 15 through the adhesive strip 54 of the sheet-like second double-sided adhesive tape to obtain the fifth-level material belt.

[0076] S6. Removing the PET matte film: The single-sided tape 16 and the fifth-grade material tape are fed into the sixth production laminating device 26. The sixth production laminating device 26 applies the single-sided tape 16 to the sheet-like first white transparent PET matte film 141, and winds up the single-sided tape 16. The single-sided tape 16 removes the sheet-like first white transparent PET matte film 141 from the adhesive strip of the first double-sided tape 11 to obtain the sixth-grade material tape.

[0077] S7. Finished product 120 width cutting: The second transparent PET protective film 17 and the sixth grade material strip are fed into the seventh production die device 27. The seventh production die device 27 attaches the second transparent PET protective film 17 to the white opaque release paper 15 and cuts the white opaque release paper 15 to the width of the finished folded material, but does not cut the second transparent PET protective film 17.

[0078] At the outlet of the seventh production die-cutting device 27, the second transparent PET protective film 17 is wound up, the second transparent PET protective film 17 is separated from the white opaque release paper, and the second transparent PET protective film 17 also removes the white opaque release paper cutting and trimming waste 110 to obtain the seventh grade material strip;

[0079] S8. Cushion pad lamination to obtain cushion pad folded material finished product 120: The second white transparent PET matte film 18 and the seventh grade material strip are both fed into the eighth production lamination device 28. The eighth production lamination device 28 makes the second white transparent PET matte film 18 cover the adhesive strip 52 of the sheet-like first double-sided adhesive tape. The second white transparent PET matte film 18 and the white opaque release paper 15 are the same width and both are strip-shaped to obtain finished product 120, and then folded and collected.

[0080] The beneficial effects or advantages of the technical solution of the present invention are as follows: the raw materials for the production of cushioning pad folding material enter the corresponding laminating device and die-cutting device in a specified order, automatically cutting the cushioning pad from strip to sheet, arranging the sheet cushioning pads at intervals by asynchronous transportation, and setting strip-shaped white opaque release paper and strip-shaped white transparent PET matte film on both sides of the sheet cushioning pad. The production efficiency of cushioning pad folding material is improved, the production cost is reduced, the production cycle is shortened, and the product quality is improved through a one-time forming operation.

[0081] The finished cushioning pad folded material consists of the following layers from top to bottom: the first layer is a strip of white transparent PET film 61 with a peel strength of 5-10g and a thickness of 0.025mm; the second layer is a sheet of double-sided adhesive tape 52 arranged at intervals with a thickness of 0.05mm; the third layer is a sheet of polypropylene microporous foam (MPP) cushioning pad 53 arranged at intervals with a thickness of 1.9mm; the fourth layer is a sheet of double-sided adhesive tape 54 arranged at intervals with a thickness of 0.05mm; and the fifth layer is a strip of white opaque release paper 62 with a thickness of 0.12mm.

[0082] The transparent PET protective film is a PET film that primarily protects the double-sided adhesive on the cushioning pad 1 and fixes the material's position. In the step of replacing the release liner of the double-sided adhesive tape with the protective film, the transparent PET protective film is adhered to the tape on the cushioning pad 1. In the step of cutting the finished product to a width of 120mm, the white opaque release liner trimming waste 110 is adhered to the transparent PET protective film, and then the transparent PET protective film is removed from the white opaque release liner trimming waste 110.

[0083] White transparent PET matte film is a film with two different PET materials on each side. One side is a release side, and the other side is a non-release side. After the release side of the white transparent PET matte film is placed on top of the cushioning pad 1, the release side can be peeled off. After the sealing tape is attached to the non-release side of the white transparent PET matte film, it is firmly attached and cannot be peeled off from the non-release side.

[0084] Single-sided tape 16 is a single-sided PET tape used for packaging cartons. OPP single-sided tape 16 is used to remove PET matte film waste above the cushioning pad 1.

[0085] Double-sided tape consists of adhesive strips and release paper.

[0086] The first, second, third, fourth, fifth, sixth, seventh, and eighth bonding devices all belong to the structure of a rotary die-cutting machine. The third, fourth, and seventh die-cutting devices are cutting dies. The third die-cutting device cuts out the width of the buffer pad 1, the fourth die-cutting device cuts out the longitudinal dimension, and the seventh die-cutting device cuts out the width of the finished product 120mm white opaque release paper 15mm.

[0087] Further, the pinch roller assembly 231 includes a first roller 2311, a second roller 2312, a first support arm 2313, a second support arm 2314, a first support rod 2315, and a second support rod 2316. The first roller 2311 and the second roller 2312 are arranged vertically. One end of the first roller 2311 is rotatably connected to the first support arm 2313, and the other end of the first support arm 2313 is fixedly connected to the first support rod 2315. One end of the second roller 2312 is rotatably connected to the second support arm 2314, and the other end of the second support arm 2314 is fixedly connected to the second support rod 2316. The support of the third production die-cutting device 23 has multiple vertically arranged arc-shaped adjustment slots. The first support rod 2315 and the second support rod 2316 are respectively fixedly arranged in two of the arc-shaped adjustment slots.

[0088] The beneficial effects of this technical solution are as follows: According to actual production needs, the positions of the first support rod 2315 and the second support rod 2316 on the support of the third production die-cutting device 23 are adjusted, thereby adjusting the height of the clamping roller assembly 231; the first roller 2311 and the second roller 2312 are used to clamp the first white transparent PET matte film 14 and the adhesive strip of the first double-sided adhesive tape 11 of the primary material strip, the buffer pad 1, the adhesive strip of the second double-sided adhesive tape 12, and the first transparent PET protective film 13.

[0089] Furthermore, in S5, the moving speed of the white opaque release paper 15 is greater than the moving speed of the sheet-like buffer pad 54 from the position of the peeling plate 251 to the position of the receiving roller 261, and the distance between the peeling plate 251 and the receiving roller 261 is less than the length of the sheet-like buffer pad 54, forming the sheet-like buffer pads 53 arranged at intervals.

[0090] The beneficial effects of this technical solution are as follows: During the peeling process of the first transparent PET protective film 13, the sheet-like buffer pads 54 are driven. The sheet-like buffer pads 54 move towards the receiving roller 261. One by one, the sheet-like buffer pads 54 cross the gap between the peeling plate 251 and the receiving roller 261, and then come into contact with and adhere to the white opaque release paper 15. Due to the speed difference, the sheet-like buffer pads 54 are arranged at intervals on the white opaque release paper 15.

[0091] Furthermore, in S5, within a set period, the moving speed of the white opaque release paper 15 is first increased, and after the folding time, the moving speed of the white opaque release paper 15 is restored to form a folded space.

[0092] The beneficial effects of this technical solution are as follows: By setting the speed difference and time, the feeding distance of the white opaque release paper 15 is first increased, and then the sheet-like buffer pad 54 is attached to the white opaque release paper 15 with the help of adhesive strips, automatically forming folded spaces 63. In this embodiment, a folded space 63 is set every fifteen sheet-like buffer pads 54.

[0093] Furthermore, a guide device 211 is provided at the inlet of the first production bonding device 21, and the buffer pad 1 is wound around the guide device 211.

[0094] The beneficial effects of this technical solution are: the correction device 211 enables the buffer pad 1 to accurately enter the first production bonding device 21.

[0095] Furthermore, the outlet of the eighth production bonding device 28 is provided with a conveyor belt 281, and the finished product 120 of the cushioning pad folded material is placed on the conveyor belt 281.

[0096] The beneficial effects of this technical solution are: the conveyor belt 281 is used to transport the finished product 120 of the folded cushioning material, thus preventing the folded cushioning material 120 from accumulating.

[0097] Furthermore, the buffer pad 1, the first double-sided adhesive tape 11, and the second double-sided adhesive tape 12 are first installed in roll form on the first feeding shaft 31, the second feeding shaft 32, and the third feeding shaft 33, respectively, and then fed into the first production bonding device 21.

[0098] After the release paper of the second double-sided tape 12 leaves the first production bonding device 21, it is wound up by the first take-up shaft 41.

[0099] The first transparent PET protective film 13 is first installed in a roll state on the fourth feeding shaft 34, and then fed into the second production laminating device 22;

[0100] After the release paper of the first double-sided film tape leaves the second production laminating device 22, it is wound up by the second take-up shaft 42.

[0101] The first white transparent PET matte film 14 is first installed in a roll state on the fifth feeding shaft 35, and then fed into the pinch roller assembly 231;

[0102] After leaving the third production die device 23, the buffer pads on both sides of the three-stage material strip are wound up by the third take-up shaft 43 and the fourth take-up shaft 44 respectively.

[0103] The white opaque release paper 15 is first installed in a roll state on the sixth feed shaft 36, and then fed into the receiving roller 261;

[0104] After the first transparent PET protective film 13 passes through the peeling plate 251, it is wound up by the fifth take-up shaft 45;

[0105] The single-sided tape 16 is first installed in the seventh feeding shaft 37 in a roll state, and then fed into the sixth production bonding device 26. After leaving the sixth production bonding device 26, the single-sided tape 16 is wound up by the sixth taking-up shaft 46.

[0106] The second transparent PET protective film 17 is first installed in a roll state on the eighth feeding shaft 38, and then fed into the seventh production die device 27. After leaving the seventh production die device 27, the second transparent PET protective film 17 is wound up by the seventh taking-up shaft 47.

[0107] The second white transparent PET matte film 18 is first installed in a roll on the ninth feeding shaft 39, and then fed into the eighth production laminating device 28.

[0108] The beneficial effects of this technical solution are: the raw materials for the production of cushioning pad folded material are supplied in roll form, which can realize uninterrupted production of cushioning pad folded material and improve production efficiency.

[0109] The first production bonding device 21, the second production bonding device 22, the third production die-cutting device 23, the fourth production die-cutting device 24, the fifth production bonding device 25, the sixth production bonding device 26, the seventh production die-cutting device 27, and the eighth production bonding device 28 are arranged sequentially from front to back on the production frame 2.

[0110] The first production bonding device 21, the second production bonding device 22, the fifth production bonding device 25, the sixth production bonding device 26, and the eighth production bonding device 28 all include a bonding bracket and an upper pressure roller and a lower pressure roller rotatably disposed on the bonding bracket, with a material strip bonding channel between the upper pressure roller and the lower pressure roller.

[0111] The third, fourth, and seventh die-cutting devices all include a die-cutting bracket and a cutting die and support roller rotatably mounted on the die-cutting bracket. The cutting die and support roller serve as a material strip cutting channel. The third die-cutting device cuts out the width of the buffer pad 1, the fourth die-cutting device cuts out the longitudinal dimension, die-cutting the buffer pad 1 into small square shapes, and the seventh die-cutting device cuts out the width of the finished product 120 white opaque release paper 15.

[0112] The processing principle of this invention is as follows: First, the first double-sided tape 11 and the second double-sided tape 12 are respectively attached to the upper and lower surfaces of the cushioning pad 1 to obtain the primary material tape; then, the release paper of the second double-sided tape 12 is replaced with the first transparent PET protective film 13, and the release paper of the first double-sided tape 11 is replaced with the first white transparent PET matte film 14 to obtain the secondary material tape; the secondary material tape is cut to obtain the tertiary material tape of a set width, and the waste material 19 from the edge trimming of the cushioning pad is removed; the tertiary material tape is then cut, and the adhesive strips of the first white transparent PET matte film 14, the first double-sided tape 11, the cushioning pad 1, and the second double-sided tape 12 are all cut from strips into sheets, but the first transparent PET protective film is not cut. 13. The first transparent PET protective film 13 is used to transport the sheet-shaped cushioning pad 54 to obtain the fourth-level material tape; the first transparent PET protective film 13 of the fourth-level material tape is replaced with white opaque release paper 15 to obtain the fifth-level material tape; the sheet-shaped first white transparent PET matte film 141 is removed from the fifth-level material tape using single-sided tape 16 to obtain the sixth-level material tape; the second transparent PET protective film 17 is pasted on the white opaque release paper 15 of the sixth-level material tape, and then the finished product is cut to a width of 120 to obtain the seventh-level material tape, and the white opaque release paper cutting and trimming waste 110 is removed; the second white transparent PET matte film 18 is pasted on the adhesive strip 52 of the sheet-shaped first double-sided tape of the seventh-level material tape to obtain the finished folded cushioning pad material.

[0113] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A process for producing folded cushioning material, characterized in that, Includes the following steps: S1. Making primary material tape: Feed the cushioning pad, the first double-sided tape, and the second double-sided tape into the first production bonding device. The first production bonding device attaches the adhesive strip of the first double-sided tape to the upper surface of the cushioning pad and attaches the adhesive strip of the second double-sided tape to the lower surface of the cushioning pad to obtain the primary material tape. S2. Replace the release paper of the double-sided tape with a protective film: feed the primary tape into the second production bonding device, between the first production bonding device and the second production bonding device, peel the release paper of the second double-sided tape from the adhesive strip of the second double-sided tape, and then rewind the release paper of the second double-sided tape. The first transparent PET protective film is fed into the second production laminating device, which then applies the first transparent PET protective film to the adhesive strip of the second double-sided tape. At the outlet of the second production bonding device, the release paper of the first double-sided tape is peeled off from the adhesive strip of the first double-sided tape, and then the release paper of the first double-sided tape is wound up. Then, the first white transparent PET matte film is attached to the adhesive strip of the first double-sided tape through the pinch roller assembly to obtain the secondary material tape. S3. Width cutting: The secondary strip is fed into the third production die device, which cuts the first white transparent PET matte film, the tape of the first double-sided adhesive tape, the buffer pad, and the adhesive strip of the second double-sided adhesive tape on both sides of the secondary strip, but does not cut the first transparent PET protective film, to obtain a tertiary strip of a set width. Then, the buffer pads located on both sides of the tertiary strip are wound up to cut off the edge waste. S4. Cutting into sheets: The three-level material strip is fed into the fourth production die device. The fourth production die device sequentially cuts the first white transparent PET matte film, the adhesive strip of the first double-sided tape, the cushioning pad, and the adhesive strip of the second double-sided tape, but does not cut the first transparent PET protective film. The first white transparent PET matte film, the adhesive strip of the first double-sided tape, the cushioning pad, and the adhesive strip of the second double-sided tape are all cut from strips into sheets to obtain the four-level material strip. S5, Asynchronous buffer pad: The four-stage material strip is sequentially fed into the fifth production bonding device and the sixth production bonding device. A stripping plate is installed at the outlet of the fifth production bonding device, and a receiving roller is installed at the inlet of the sixth production bonding device. The white opaque release paper is fed into the receiving roller and the sixth production bonding device. When the fourth-grade material belt passes the peeling plate, the peeling plate peels the first transparent PET protective film from the adhesive strip of the sheet-like second double-sided adhesive tape. The sheet-like buffer pads move asynchronously from the peeling plate position to the receiving roller position one by one, and the sheet-like buffer pads are attached to the white opaque release paper through the adhesive strip of the sheet-like second double-sided adhesive tape to obtain the fifth-grade material belt. S6. Remove the PET matte film: Feed both the single-sided tape and the fifth-grade material tape into the sixth production laminating device. The sixth production laminating device applies the single-sided tape to the sheet-like first white transparent PET matte film, and then winds up the single-sided tape. The single-sided tape removes the sheet-like first white transparent PET matte film from the adhesive strip of the sheet-like first double-sided tape to obtain the sixth-grade material tape. S7. Finished product width cutting: The second transparent PET protective film and the sixth-level material strip are fed into the seventh production die device. The seventh production die device attaches the second transparent PET protective film to the white opaque release paper and cuts the white opaque release paper to the width of the finished folded material, but does not cut the second transparent PET protective film. At the outlet of the seventh die-cutting device, the second transparent PET protective film is wound up, the second transparent PET protective film is detached from the white opaque release paper, and the second transparent PET protective film also removes the white opaque release paper cutting and trimming waste to obtain the seventh grade material strip; S8. Cushion pad coating to obtain the finished folded cushion pad material: The second white transparent PET matte film and the seventh-grade material strip are both fed into the eighth production laminating device. The eighth production laminating device makes the second white transparent PET matte film cover the adhesive strip of the sheet-like first double-sided adhesive tape. The second white transparent PET matte film and the white opaque release paper are the same width and both are strip-shaped to obtain the finished product, and then folded and collected.

2. The method for producing a cushioning pad folding material according to claim 1, characterized in that, The cushioning pad is a polypropylene microporous foam cushioning pad.

3. The method for producing a cushioning pad folding material according to claim 1, characterized in that, The pinch roller assembly includes a first roller, a second roller, a first support arm, a second support arm, a first support rod, and a second support rod. The first roller and the second roller are arranged vertically. The first roller is rotatably connected to one end of the first support arm, and the other end of the first support arm is fixedly connected to the first support rod. The second roller is rotatably connected to one end of the second support arm, and the other end of the second support arm is fixedly connected to the second support rod. The support of the third production die-cutting device has multiple vertically arranged arc-shaped adjustment slots. The first support rod and the second support rod are respectively fixedly arranged in two of the arc-shaped adjustment slots.

4. The method for producing a cushioning pad folding material according to claim 1, characterized in that, In S5, the moving speed of the white opaque release paper is greater than the moving speed of the sheet-like buffer pad from the peeling plate position to the receiving roller position, and the distance between the peeling plate and the receiving roller is less than the length of the sheet-like buffer pad, forming the sheet-like buffer pads arranged at intervals.

5. The method for producing a cushioning pad folding material according to claim 4, characterized in that, In step S5, within a set period, the moving speed of the white opaque release paper is first increased, and after the folding time, the moving speed of the white opaque release paper is restored to form a folded space.

6. The method for producing a cushioning pad folding material according to claim 1, characterized in that, The inlet of the first production bonding device is equipped with a guide device, and the buffer pad is wound around the guide device.

7. The method for producing a cushioning pad folding material according to claim 1, characterized in that, The outlet of the eighth production bonding device is equipped with a conveyor belt, and the finished folded cushioning pad is placed on the conveyor belt.

8. The method for producing a cushioning pad folding material according to claim 1, characterized in that, The buffer pad, the first double-sided adhesive tape, and the second double-sided adhesive tape are first installed in roll form on the first feeding shaft, the second feeding shaft, and the third feeding shaft, respectively, and then fed into the first production bonding device. After the release paper of the second double-sided tape leaves the first production bonding device, it is wound up by the first take-up shaft; The first transparent PET protective film is first installed in a roll on the fourth feeding shaft, and then fed into the second production laminating device; After the release paper of the first double-sided film tape leaves the second production laminating device, it is wound up by the second take-up shaft; The first white transparent PET matte film is first installed in a roll state on the fifth feeding shaft, and then fed into the pinch roller assembly; After the buffer pads on both sides of the three-stage material strip are cut and trimmed, the waste material is wound up by the third take-up shaft and the fourth take-up shaft respectively after leaving the third production die device. The white opaque release paper is first installed in a roll state on the sixth feed shaft, and then fed into the receiving roller; After the first transparent PET protective film passes through the peeling plate, it is wound up by the fifth take-up shaft; The single-sided tape is first installed in a roll on the seventh feeding shaft, and then fed into the sixth production laminating device. After leaving the sixth production laminating device, the single-sided tape is wound up by the sixth taking-up shaft. The second transparent PET protective film is first installed in a roll state on the eighth feeding shaft, and then fed into the seventh production die device. After leaving the seventh production die device, the second transparent PET protective film is wound up by the seventh taking-up shaft. The second white transparent PET matte film is first installed in a roll on the ninth feeding shaft, and then fed into the eighth production laminating device.

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