Automatic silica gel pad production line with double-sided tearing hand

Abstract

The invention relates to the technical field of silica gel pad production, and provides a silica gel pad automatic production line with a double-sided tearing hand, which comprises a feeding machine, a die cutting machine, a conveyor and a double-sided tearing hand release paper attaching machine, the feeding machine is used for providing silica gel pasting and covering sheets; the die-cutting machine is used for die-cutting the silica gel pasting sheet to obtain a silica gel pad semi-finished product, and the silica gel pad semi-finished product enters the conveyor; the conveyor is used for conveying the semi-finished silica gel pad to the double-sided tearing hand release paper attaching machine; the double-sided tearing hand release paper attaching machine comprises a feeding carrying device, a first tearing hand release paper attaching device, an overturning device, a second tearing hand release paper attaching device and a discharging carrying device. The first tearing hand release paper attaching device comprises a conveying belt mechanism, a release paper tearing mechanism, a tearing hand release paper attaching mechanism and a tearing hand release paper discharging mechanism. The device has the advantages that the release paper of the silica gel pad is automatically replaced, the production efficiency and the product yield are improved, meanwhile, the production takt is improved, the turnover frequency is reduced, and automatic high-precision production is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of silicone pad production, and in particular to an automatic production line for silicone pads with double-sided tear handles. Background Art

[0002] Silicone pads are a type of silicone product with a relatively high market demand. They have certain tension, flexibility, excellent insulation, pressure resistance, high temperature resistance, low temperature resistance, stable chemical properties, environmental safety, and no odor. Food-grade silicone pads are non-toxic and tasteless, insoluble in water and any solvents, and are highly active green products.

[0003] The traditional production process of silicone pads mainly involves coating, indentation, and manual replacement of release paper. Coating is to apply double-sided tape on the upper and lower surfaces of the silicone sheet. The double-sided tape is obtained by bonding the release paper and the glue. Indentation is to press and cut out the required overall shape of the silicone pad in the coated product. Manual replacement of release paper is to manually tear off the release paper of the indented product, and then manually attach the release paper with the tearing handle to the double-sided adhesive of the silicone pad, and finally obtain a silicone pad with double-sided tearing handles. The part of the release paper protruding from the silicone is the tearing handle, which is mainly for customers to achieve automated production. The release paper is peeled off by clamping the tearing handle of the release paper by a robot, and then the silicone pad is installed.

[0004] The traditional production process of silicone pads requires multiple turnover of materials in various processes, which results in low production efficiency and production rhythm. In the manual release paper replacement process, due to the high product requirements, the manual release paper sticking accuracy is poor and the efficiency is slow, which is prone to missing or wrong sticking, and the proportion of defective products is high.

[0005] Therefore, how to automatically replace the release paper of the silicone pad to improve production efficiency and product yield 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 an automated production line for silicone pads with double-sided tear handles, which can automatically replace the release paper of the silicone pads and improve production efficiency and product yield.

[0007] The present invention is implemented as follows: an automatic production line of a silicone pad with double-sided tear handles, comprising:

[0008] Feeder, die-cutter, conveyor and double-sided tear-off release paper attaching machine;

[0009] The feeder is used to provide a silicone coating sheet, which includes a first release paper, a first double-sided adhesive tape, silicone, a second double-sided adhesive tape, and a second release paper arranged from top to bottom, and the silicone coating sheet enters the die-cutting machine;

[0010] The die-cutting machine is used to die-cut the silicone coated sheet to obtain a semi-finished silicone pad, and the semi-finished silicone pad enters the conveyor;

[0011] The conveyor is used to transport the semi-finished silicone pad to the double-sided tear release paper attaching machine;

[0012] The double-sided tear-off release paper attaching machine comprises a loading and transporting device, a first tear-off release paper attaching device, a turning device, a second tear-off release paper attaching device and a unloading and transporting device;

[0013] The first tearing hand release paper attaching device comprises a conveyor belt mechanism, a release paper tearing mechanism, a tearing hand release paper attaching mechanism and a tearing hand release paper feeding mechanism, the upper transport device is used to grab the semi-finished silicone pad and then place it on the conveyor belt mechanism, the conveyor belt mechanism passes through the release paper tearing mechanism and the tearing hand release paper attaching mechanism in sequence, the release paper tearing mechanism first tears off the first release paper located on the first side of the semi-finished silicone pad, the tearing hand release paper attaching mechanism then obtains the first tearing hand release paper from the tearing hand release paper feeding mechanism, and then attaches the first tearing hand release paper to the first side of the semi-finished silicone pad, and the conveyor belt mechanism transports the semi-finished silicone pad with the first side attached to the flipping device;

[0014] The turning device comprises a turning frame, a turning drive shaft, a turning splint, a left feeding support wheel, a right feeding support wheel, a left discharging support wheel, a right discharging support wheel, a rotating shaft, a material shifting drive shaft and a transmission line, the turning drive shaft is rotatably connected to the turning frame, one end of the turning splint is fixedly connected to the turning drive shaft, and the other end of the turning splint is provided with a silicone pad inlet and outlet, the left feeding support wheel and the right feeding support wheel are both rotatably arranged at the feeding port of the turning frame, the left discharging support wheel and the right discharging support wheel are both rotatably arranged at the discharging port of the turning frame, the left discharging support wheel is connected to the right discharging support wheel through the rotating shaft, the material shifting drive shaft is rotatably connected to the turning frame, and is also transmission-connected to the rotating shaft, the left feeding support wheel and the left discharging support wheel are connected through the transmission line, and the turning device is used to first turn over the silicone pad semi-finished product with the first side attached, and then transmit it to the second tearing hand release paper attaching device;

[0015] The second tear-off release paper attaching device has the same structure as the first tear-off release paper attaching device. The second tear-off release paper attaching device is used to first tear off the second release paper located on the second side of the semi-finished silicone pad, and then attach the second tear-off release paper to the second side of the semi-finished silicone pad to obtain a finished silicone pad. The unloading and handling device is used to take away the finished silicone pad.

[0016] Furthermore, the first tear-off release paper attaching device also includes a silicone appearance recognition camera and a tear-off release paper appearance recognition camera, and the silicone appearance recognition camera and the tear-off release paper appearance recognition camera are both located above the conveyor belt mechanism and are electrically connected to the tear-off release paper attaching mechanism.

[0017] Furthermore, the first tear-off release paper attaching device further includes a rolling mechanism, and the rolling mechanism is arranged at the discharge port of the conveyor belt.

[0018] Furthermore, the double-sided tear-off release paper attaching machine also includes a material receiving and transporting device, which is electrically connected to the material unloading and transporting device. The material unloading and transporting device transports the finished silicone pad to the entrance of the material receiving and transporting device, and the controller of the material unloading and transporting device accumulates the number of transports. When the number of transports reaches a preset threshold, the material receiving and transporting device advances one stacking area, and the number of transports is reset to zero.

[0019] Furthermore, the tear-off release paper attaching mechanism includes a mechanical arm and a pneumatic suction cup installed on the mechanical arm.

[0020] Furthermore, there are four flip clamps, and the four flip clamps are evenly spaced and arranged around the flip driving shaft.

[0021] Further, the die-cutting machine includes a feeding device, a die-cutting device and a discharging device;

[0022] 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 to clamp and feed the silicone coating sheet;

[0023] 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 a cutting die and a support plate, 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 cutting die is fixedly connected to the top seat, the support plate is fixedly connected to the lifting seat, and the cutting die and the support plate are used for die-cutting the silicone coated sheet;

[0024] The discharging device includes a discharging frame, a discharging roller, a tearing plate and a receiving shaft. 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 entrance of the conveyor is located below the discharging roller, the gap between the tearing plate and the discharging roller is used to transport the silicone coated sheet after die-cutting, the receiving shaft is used to roll up the scraps separated from the silicone coated sheet, and the entrance of the conveyor is used to collect the silicone pad semi-finished products separated from the silicone coated sheet.

[0025] Further, the feeder includes a coating frame and a first upper coating roller, a first lower coating roller, a second upper coating roller, a second lower coating roller, a first unloading shaft, a second unloading shaft and a third unloading shaft rotatably arranged on the coating frame;

[0026] The first unwinding shaft is used to install the first adhesive tape coil, the second unwinding shaft is used to install the second adhesive tape coil, and the third unwinding shaft is used to install the silicone coil;

[0027] The second adhesive tape roll and the silicone roll both pass through the adhesive coating gap between the second upper adhesive coating roller and the second lower adhesive coating roller, and the second adhesive tape roll is applied to the lower surface of the silicone roll to obtain a silicone coated long strip semi-finished product;

[0028] The semi-finished silicone coated long strip material and the first adhesive tape roll both pass through the adhesive coating gap between the first upper adhesive coating roller and the first lower adhesive coating roller, and the first adhesive tape roll is applied to the upper surface of the silicone roll to obtain a silicone coated long strip material finished product;

[0029] The finished silicone coated long strip material replaces the silicone coated sheet material and enters the die-cutting machine.

[0030] Compared with the background technology, the advantages and beneficial effects of the present invention are:

[0031] After the silicone coated sheet enters the die-cutting machine, a silicone pad semi-finished product is obtained, and then it enters the double-sided tear-hand release paper attaching machine through a conveyor. The first side of the silicone pad semi-finished product faces upward, and the release paper on the first side is automatically torn off first, and then the release paper with the tear hand is automatically attached to the first side. Then, after being flipped by a flipping device, the second side of the silicone pad semi-finished product faces upward, and then the release paper on the second side is automatically torn off, and then the release paper with the tear hand is automatically attached to the second side to obtain a silicone pad finished product. The production line of the present invention automatically replaces the release paper of the silicone pad, improves production efficiency and product yield, while improving production rhythm and reducing turnover times, thereby realizing automated high-precision production. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0033] Figure 1 It is a schematic diagram of the layout of the automatic production line of the silicone pad with double-sided tear handles of the present invention.

[0034] Figure 2 It is a schematic diagram of the positions of the silicone coated long strip semi-finished product, the silicone coated long strip finished product, the feeding device, the die-cutting device, the discharging device, the silicone pad semi-finished product and the conveyor in the embodiment of the present invention.

[0035] Figure 3 It is a schematic three-dimensional diagram of the structure of the die-cutting device in an embodiment of the present invention.

[0036] Figure 4 It is a schematic structural stereogram of a feeding device in an embodiment of the present invention.

[0037] Figure 5 It is a schematic structural stereogram of a discharging device in an embodiment of the present invention.

[0038] Figure 6 It is a schematic diagram of the positions of the material unloading and handling device and the material receiving and transporting device in an embodiment of the present invention.

[0039] Figure 7 The structure of the first tear-off release paper attaching device in the embodiment of the present invention is schematically shown in FIG. Figure 1 .

[0040] Figure 8 The structure of the first tear-off release paper attaching device in the embodiment of the present invention is schematically shown in FIG. Figure 2 .

[0041] Fig. 9 It is a schematic structural stereogram of the turning device in the embodiment of the present invention.

[0042] Fig.10 It is a schematic front view of the structure of the turning device in the embodiment of the present invention.

[0043] Fig.11 yes Fig.10 Top view of the .

[0044] Fig.12 It is a schematic three-dimensional diagram of the structure of the flip splint in the embodiment of the present invention.

[0045] Fig.13 It is a schematic diagram of a semi-finished silicone pad die-cut from a silicone coating sheet in an embodiment of the present invention.

[0046] Fig.14 Schematic diagram of the structure of the semi-finished silicone pad in an embodiment of the present invention.

[0047] Fig.15It is a schematic three-dimensional diagram of the structure of the finished silicone pad in an embodiment of the present invention.

[0048] Reference numerals: feeder 1; glue coating frame 11; first upper glue coating roller 12; first lower glue coating roller 13; second upper glue coating roller 14; second lower glue coating roller 15; first unloading shaft 16; second unloading shaft 17; third unloading shaft 18;

[0049] Die-cutting machine 2; feeding device 21; feeding frame 211; upper pressing rod 212; lower pressing rod 213; die-cutting device 22; mold frame 221; top seat 2211; lifting seat 2212; base 2213; guide column 2214; cutting die 222; support plate 223; discharging device 23; discharging frame 231; discharging roller 232; tearing plate 233; receiving shaft 234;

[0050] Transporter 3;

[0051] Double-sided tearing hand release paper attaching machine 4; feeding and conveying device 41; first tearing hand release paper attaching device 42; conveyor belt mechanism 421; release paper tearing mechanism 422; tearing hand release paper attaching mechanism 423; tearing hand release paper feeding mechanism 424; silicone appearance recognition camera 425; tearing hand release paper appearance recognition camera 426; rolling mechanism 427; flipping device 43; flipping frame 431; flipping drive shaft 432; flipping clamp 433; silicone pad inlet and outlet 4331; left feeding support wheel 434; right feeding support wheel 435; left discharging support wheel 436; right discharging support wheel 437; rotating shaft 438; material transfer drive shaft 439; transmission line 4310; flipping drive motor 4311; material transfer drive motor 4312; second tearing hand release paper attaching device 44; unloading and conveying device 45; material receiving and transporting device 46;

[0052] Silicone coated sheet 5; silicone pad semi-finished product 51; silicone pad finished product 52; first release paper 53; first double-sided tape 54; silicone 55; second double-sided tape 56; second release paper 57; first tear-off finger release paper 58; tear-off finger 581; second tear-off finger release paper 59; silicone coated long strip semi-finished product 510; silicone coated long strip finished product 511. DETAILED DESCRIPTION

[0053] The embodiment of the present invention provides an automated production line for silicone pads with double-sided tear handles, which overcomes the disadvantage of manually replacing release paper in the background technology, realizes automatic replacement of the release paper of the silicone pad, improves production efficiency and product yield, while increasing production rhythm and reducing turnover times, thereby achieving the technical effect of automated high-precision production.

[0054] The overall idea of ​​the technical solution of the embodiment of the present invention is as follows:

[0055] The silicone coating sheet enters the die-cutting machine from the feeder. The die-cutting machine die-cuts the silicone coating sheet once, and the silicone coating sheet is translated once, thereby die-cutting multiple silicone pad semi-finished products from the silicone coating sheet. The release paper of the silicone pad semi-finished product has no part protruding from the silicone, that is, the silicone pad semi-finished product has double-sided tape but the release paper is not tearable. The semi-finished silicone pad product passes through a conveyor and enters a double-sided tear-off release paper attaching machine. In the first tear-off release paper attaching device, the first side of the semi-finished silicone pad product faces upward, and the release paper tearing mechanism first tears off the first release paper on the first side of the semi-finished silicone pad product. Then the tear-off release paper attaching mechanism obtains the first tear-off release paper from the tear-off release paper discharging mechanism, and then attaches the first tear-off release paper to the first side of the semi-finished silicone pad product. The tear-off release paper is a release paper with a tear-off portion. Then the flipping device flips the semi-finished silicone pad product that has completed the first side attachment, so that the second side of the semi-finished silicone pad product faces upward, and the second tear-off release paper attaching device automatically tears off the second release paper on the second side, and then automatically attaches the second tear-off release paper to the second side to obtain a finished silicone pad product. Finally, the unloading and conveying device conveys the finished silicone pad product to the receiving and conveying device.

[0056] 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.

[0057] See also Figures 1 to 15 , a preferred embodiment of the present invention.

[0058] An automatic production line for silicone pads with double-sided tear handles, comprising:

[0059] Feeder 1, die-cutting machine 2, conveyor 3 and double-sided tear-off release paper attaching machine 4;

[0060] The feeder 1 is used to provide a silicone coating sheet 5, which includes a first release paper 53, a first double-sided adhesive tape 54, silicone 55, a second double-sided adhesive tape 56, and a second release paper 57 arranged from top to bottom. The silicone coating sheet 5 enters the die-cutting machine 2;

[0061] The die-cutting machine 2 is used to die-cut the silicone coated sheet 5 to obtain a silicone pad semi-finished product 51, and the silicone pad semi-finished product 51 enters the conveyor 3;

[0062] The conveyor 3 is used to transport the semi-finished silicone pad 51 to the double-sided tear release paper attaching machine 4;

[0063] The double-sided tear-off release paper attaching machine 4 includes a loading and transporting device 41, a first tear-off release paper attaching device 42, a turning device 43, a second tear-off release paper attaching device 44 and a unloading and transporting device 45;

[0064] The first tearing hand release paper attaching device 42 includes a conveyor belt mechanism 421, a release paper tearing mechanism 422, a tearing hand release paper attaching mechanism 423 and a tearing hand release paper feeding mechanism 424. The upper transport device is used to grab the silicone pad semi-finished product 51 and then place it on the conveyor belt mechanism 421. The conveyor belt mechanism 421 passes through the release paper tearing mechanism 422 and the tearing hand release paper attaching mechanism 423 in sequence. The release paper tearing mechanism 422 first tears off the first release paper 53 located on the first side of the silicone pad semi-finished product 51. The tearing hand release paper attaching mechanism 423 then obtains the first tearing hand release paper 58 from the tearing hand release paper feeding mechanism 424, and then attaches the first tearing hand release paper 58 to the first side of the silicone pad semi-finished product 51. The conveyor belt mechanism 421 conveys the silicone pad semi-finished product 51 with the first side attached to the flipping device 43.

[0065] The flip device 43 includes a flip frame 431, a flip drive shaft 432, a flip clamp 433, a left feed support wheel 434, a right feed support wheel 435, a left discharge support wheel 436, a right discharge support wheel 437, a rotating shaft 438, a material transfer drive shaft 439 and a transmission line 4310. The flip drive shaft 432 is rotatably connected to the flip frame 431, one end of the flip clamp 433 is fixedly connected to the flip drive shaft 432, and the other end of the flip clamp 433 has a silicone pad inlet and outlet 4331. The left feed support wheel 434 and the right feed support wheel 435 are both rotatably arranged on the flip frame 43 1, the left discharging support wheel 436 and the right discharging support wheel 437 are both rotatably arranged at the discharging port of the flip frame 431, the left discharging support wheel 436 and the right discharging support wheel 437 are connected via the rotating shaft 438, the material shifting drive shaft 439 is rotatably connected to the flip frame 431, and is also transmission-connected to the rotating shaft 438, the left inlet support wheel 434 is connected to the left discharging support wheel 436 via the transmission line 4310, and the flipping device 43 is used to first flip the silicone pad semi-finished product 51 that has been attached to the first side, and then transfer it to the second tear-off release paper attaching device 44;

[0066] The second tear-off release paper attaching device 44 has the same structure as the first tear-off release paper attaching device 42. The second tear-off release paper attaching device 44 is used to first tear off the second release paper 57 located on the second side of the silicone pad semi-finished product 51, and then attach the second tear-off release paper 59 to the second side of the silicone pad semi-finished product 51 to obtain the silicone pad finished product 52. The unloading and handling device 45 is used to take away the silicone pad finished product 52.

[0067] The beneficial effect of the above technical scheme is that after the silicone coated sheet 5 enters the die-cutting machine 2, a silicone pad semi-finished product 51 is obtained, and then enters the double-sided tear-hand release paper attaching machine 4 through the conveyor 3. The first side of the silicone pad semi-finished product 51 faces upward, and the release paper on the first side is automatically torn off, and then the release paper with the tear hand part 581 is automatically attached to the first side. Then, after being flipped by the flipping device 43, the second side of the silicone pad semi-finished product 51 faces upward, and then the release paper on the second side is automatically torn off, and then the release paper with the tear hand part is automatically attached to the second side to obtain a silicone pad finished product 52. The production line of the present invention automatically replaces the release paper of the silicone pad, improves production efficiency and product yield, while improving production rhythm and reducing turnover times, thereby realizing automated high-precision production.

[0068] The loading and transporting device 41, the unloading and transporting device 45, the release paper tearing mechanism 422, and the tearing hand release paper attaching mechanism 423 all include mechanical arms of the prior art, which are used to accurately and flexibly clamp and transport items. The working principles of the release paper tearing mechanism 422 and the tearing hand release paper attaching mechanism 423 refer to the invention patent document "Slicing and labeling equipment and preparation method of module buffer insulation cover" with authorization announcement number CN116691009B. This invention patent document records: After the release paper on the semi-finished buffer material is torn off by the tearing mechanism, the turntable is rotated, and the release paper with the U-shaped tearing hand is attached to the semi-finished buffer material by the labeling machine.

[0069] The conveyor 3 is preferably a belt conveyor, and a sensor for detecting the silicone pad semi-finished product 51 is provided at the outlet of the belt conveyor. The sensor sends a signal to the loading and conveying device 41, and the loading and conveying device 41 conveys the silicone pad semi-finished product 51 to the entrance of the first tear-off release paper attaching device 42.

[0070] The material transfer drive shaft 439 of the turning device 43 simultaneously drives the left material feeding support wheel 434 and the right material feeding support wheel 435 , and cooperates with the turning clamp 433 , so that the silicone pad semi-finished product 51 waiting to be turned over can enter and exit the turning device 43 in an orderly manner. The silicone pad semi-finished product 51 waiting to be flipped enters the left feed support wheel 434 and the right feed support wheel 435 of the flipping device 43 from the outlet of the conveyor belt mechanism 421 of the first tearing hand release paper attaching device 42, and then enters the silicone pad entrance and exit 4331 of the flipping clamp 433. The flipping clamp 433 performs a flipping action to flip the silicone pad semi-finished product 51 from the position of the left feed support wheel 434 and the right feed support wheel 435 to the position of the left discharge support wheel 436 and the right discharge support wheel 437, realizing a 180° flip; finally, the left discharge support wheel 436 and the right discharge support wheel 437 are started to send the flipped silicone pad semi-finished product 51 to the outlet of the conveyor belt mechanism of the second tearing hand release paper attaching device 44.

[0071] The first tearing hand release paper attaching device 42 also includes a silicone appearance recognition camera 425 and a tearing hand release paper appearance recognition camera 426, both of which are located above the conveyor belt mechanism and are electrically connected to the tearing hand release paper attaching mechanism 423. The beneficial effect of this technical solution is that before attaching the release paper with the tearing hand portion, the silicone appearance recognition camera 425 takes a photo to identify the entire size and position of the silicone pad, and then the tearing hand release paper appearance recognition camera 426 takes a photo to identify the size and position of the release paper, the photos obtained by the two photos are compared in size and position, and then the tearing hand release paper attaching mechanism 423 accurately attaches the release paper with the tearing hand portion to the silicone.

[0072] The first tear-off release paper attaching device 42 further includes a rolling mechanism 427, and the rolling mechanism 427 is disposed at the discharge port of the conveyor belt 421. The beneficial effect of this technical solution is that after the first tear-off release paper 58 is attached to the semi-finished silicone pad 51, it passes through the roller of the rolling mechanism 427, so that the first tear-off release paper 58 is more closely attached to the silicone.

[0073] The double-sided tearing release paper attaching machine 4 also includes a material receiving and transporting device 46, and the material receiving and transporting device 46 is electrically connected to the material unloading and transporting device 45. The material unloading and transporting device 45 transports the finished silicone pad 52 to the entrance of the material receiving and transporting device 46, and the controller of the material unloading and transporting device 45 accumulates the number of transports. When the number of transports reaches a preset number threshold, the material receiving and transporting device 46 advances to a stacking area, and the number of transports is reset. The beneficial effect of this technical solution is that the finished silicone pad 52 is stacked on the material receiving and transporting device 46, which is convenient for transport and counting. The preset number threshold is one hundred times, that is, the finished silicone pad 52 is stacked every one hundred pieces on the material receiving and transporting device 46. There is a gap between the two stacking areas.

[0074] The tearing hand release paper attaching mechanism 423 includes a mechanical arm and a pneumatic suction cup installed on the mechanical arm. The pneumatic suction cup is used to suck the release paper with the tearing hand part from the tearing hand release paper feeding mechanism 424. The release paper with the tearing hand part can be in the form of a sheet or in the form of a roll installed on the tearing hand release paper feeding mechanism 424. The release papers on the roll are arranged one by one at intervals, and the distance between every two release papers is the same, so that the position of each discharge can be the same.

[0075] There are four flip clamps 433, and the four flip clamps 433 are evenly spaced around the flip drive shaft 432. The flip drive shaft 432 rotates the flip clamps 433 by 90 degrees each time.

[0076] The flipping device 43 also includes a flipping drive motor 4311 and a material transfer drive motor 4312. The flipping drive motor 4311 is fixedly arranged on the flipping frame 431, and the output shaft of the flipping drive motor 4311 is connected to the flipping drive shaft 432 via a first coupling. The material transfer drive motor 4312 is fixedly arranged on the flipping frame 431, and the output shaft of the material transfer drive motor 4312 is connected to the material transfer drive shaft 439 via a second coupling.

[0077] The semi-finished silicone pad 51 that has completed the first side attachment is transferred to the flip device 43, passes through the left feeding support wheel 434 and the right feeding support wheel 435, and then enters the silicone pad entrance 4331 of the flip clamp 433, and then stops moving. The flip clamp 433 flips the semi-finished silicone pad 51, and the semi-finished silicone pad 51 is flipped 180° and falls on the left discharging support wheel 436 and the right discharging support wheel 437, and then the left discharging support wheel 436 and the right discharging support wheel 437 are started to transport the flipped semi-finished silicone pad 51 out of the flip clamp 433 and into the second tear-off release paper attaching device 44.

[0078] The die-cutting machine 2 includes a feeding device 21, a die-cutting device 22 and a discharging device 23;

[0079] The feeding device 21 includes a feeding frame 211, an upper pressing rod 212 and a lower pressing rod 213. The upper pressing rod 212 and the lower pressing rod 213 are both rotatably arranged on the feeding frame 211. The upper pressing rod 212 and the lower pressing rod 213 are used to clamp and feed the silicone coating sheet 5.

[0080] The die-cutting device 22 includes a die frame 221 and a processing die, the die frame 221 includes a top seat 2211, a lifting seat 2212, a base 2213 and a guide column 2214, the processing die includes a cutting die 222 and a support plate 223, the top seat 2211 is fixedly connected to the upper end of the guide column 2214, the lifting seat 2212 is slidably connected to the guide column 2214, the base 2213 is fixedly connected to the lower end of the guide column 2214, the cutting die 222 is fixedly connected to the top seat 2211, the support plate 223 is fixedly connected to the lifting seat 2212, and the cutting die 222 and the support plate 223 are used for die-cutting the silicone coating sheet 5;

[0081] The discharging device 23 includes a discharging frame 231, a discharging roller 232, a tearing plate 233 and a receiving shaft 234. The discharging roller 232 is rotatably arranged on the discharging frame 231, the tearing plate 233 is fixedly arranged on the discharging frame 231 and is also located in front of the discharging roller 232, the receiving shaft 234 is rotatably arranged on the discharging frame 231 and is also located above the tearing plate 233, the entrance of the conveyor 3 is located below the discharging roller 232, the gap between the tearing plate 233 and the discharging roller 232 is used to transport the silicone coating sheet 5 after die-cutting, the receiving shaft 234 is used to roll up the scraps separated from the silicone coating sheet 5, and the entrance of the conveyor 3 is used to collect the silicone pad semi-finished product 51 separated from the silicone coating sheet 5. The beneficial effect of this technical solution is that the upper pressing rod 212 and the lower pressing rod 213 ensure the accuracy of the material feeding; the lifting seat 2212 drives the support plate 223 and the cutting die 222 to close, so as to die-cut the silicone coating sheet 5. The operation state of the lifting seat 2212 is controlled by the lifting drive device of the prior art; the silicone coating sheet 5 after die-cutting passes through the gap between the tearing plate 233 and the discharge roller 232, and the scraps and the silicone pad semi-finished product 51 are transported in different directions, so that the discharge roller 232 brings the silicone pad semi-finished product 51 out of the silicone coating sheet 5, and the scraps are rolled up by the receiving shaft 234, and the silicone pad semi-finished product 51 falls at the entrance of the conveyor 3.

[0082] The cutting die 222 is used to die-cut the silicone coating sheet 5. The cutting die 222 is aligned with the middle position of the silicone coating sheet 5. Due to the elastic characteristics of silicone, the silicone pad semi-finished product 51 obtained by die-cutting will also move with the silicone coating sheet 5. Finally, the silicone pad semi-finished product 51 is separated from the silicone coating sheet 5 by the discharging device 23.

[0083] The feeder 1 includes a coating frame 11 and a first upper coating roller 12, a first lower coating roller 13, a second upper coating roller 14, a second lower coating roller 15, a first unloading shaft 16, a second unloading shaft 17 and a third unloading shaft 18 rotatably arranged on the coating frame 11;

[0084] The first unloading shaft 16 is used to install the first adhesive tape coil, the second unloading shaft 17 is used to install the second adhesive tape coil, and the third unloading shaft 18 is used to install the silicone coil;

[0085] The second adhesive tape roll and the silicone roll both pass through the coating gap between the second upper coating roller 14 and the second lower coating roller 15, and the second adhesive tape roll is applied to the lower surface of the silicone roll to obtain a silicone coated long strip semi-finished product 510;

[0086] The silicone coated long strip semi-finished product 510 and the first adhesive tape roll both pass through the adhesive coating gap between the first upper adhesive coating roller 12 and the first lower adhesive coating roller 13, and the first adhesive tape roll is applied to the upper surface of the silicone roll to obtain a silicone coated long strip finished product 511;

[0087] The finished silicone coated long strip material 511 replaces the silicone coated sheet material 5 to enter the die-cutting machine 2. The beneficial effect of this technical solution is that the silicone coated long strip material meets the conditions for continuous operation of the machine, the first adhesive tape coil, the second adhesive tape coil, and the silicone coil material are continuously discharged, and the silicone coated long strip material is obtained after passing through the upper rubber roller and the lower rubber roller, and the silicone coated long strip material continuously enters the die-cutting machine 2, thereby continuously obtaining the silicone pad semi-finished product 51; in comparison, the length of the silicone coated sheet material 5 is shorter, and it is necessary to continuously take the material and then put it into the die-cutting machine 2, and the efficiency of die-cutting the silicone pad semi-finished product 51 with the silicone coated sheet material 5 is low.

[0088] Working mode of the present invention: The structure of the finished silicone pad with double-sided tear handle 52 is arranged from top to bottom in sequence: first tear handle release paper 58, first double-sided adhesive 54, silicone 55, second double-sided adhesive 56, and second tear handle release paper 59. The tear handle release paper is a release paper with a tear handle portion 581. The function of the feeder 1 as a glue coating machine is to attach a layer of double-sided tape to the upper and lower surfaces of the silicone 55, and then go to the die-cutting machine 2 for die-cutting. After the operation of the knife die 222, the overall shape of the required silicone is cut out. The obtained silicone pad semi-finished product 51 is transported to the double-sided tearing hand release paper attaching machine 4 through the conveyor 3 to attach the release paper. After the mechanical arm of the tearing hand release paper attaching mechanism 423 attaches the release paper with the tearing hand part 581 on the first side, it turns 180° and then attaches the release paper with the tearing hand part on the second side to obtain the silicone pad finished product 52. Finally, the silicone pad finished product 52 is placed on the material receiving and transporting device 46 by the unloading and conveying device 45, and every 100 silicone pad finished products 52 are stacked. The present invention realizes automated production, greatly improves production efficiency, improves the yield rate of silicone pads, and improves product quality and consistency.

[0089] 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. An automatic production line for silicone pads with double-sided tear handles, characterized in that: include: Feeder, die-cutter, conveyor and double-sided tear-off release paper attaching machine; The feeder is used to provide a silicone coating sheet, which includes a first release paper, a first double-sided adhesive tape, silicone, a second double-sided adhesive tape, and a second release paper arranged from top to bottom, and the silicone coating sheet enters the die-cutting machine; The die-cutting machine is used to die-cut the silicone coated sheet to obtain a semi-finished silicone pad, and the semi-finished silicone pad enters the conveyor; The conveyor is used to transport the semi-finished silicone pad to the double-sided tear release paper attaching machine; The double-sided tear-off release paper attaching machine comprises a loading and transporting device, a first tear-off release paper attaching device, a turning device, a second tear-off release paper attaching device and a unloading and transporting device; The first tearing hand release paper attaching device comprises a conveyor belt mechanism, a release paper tearing mechanism, a tearing hand release paper attaching mechanism and a tearing hand release paper feeding mechanism, the upper transport device is used to grab the semi-finished silicone pad and then place it on the conveyor belt mechanism, the conveyor belt mechanism passes through the release paper tearing mechanism and the tearing hand release paper attaching mechanism in sequence, the release paper tearing mechanism first tears off the first release paper located on the first side of the semi-finished silicone pad, the tearing hand release paper attaching mechanism then obtains the first tearing hand release paper from the tearing hand release paper feeding mechanism, and then attaches the first tearing hand release paper to the first side of the semi-finished silicone pad, and the conveyor belt mechanism transports the semi-finished silicone pad with the first side attached to the flipping device; The turning device comprises a turning frame, a turning drive shaft, a turning splint, a left feeding support wheel, a right feeding support wheel, a left discharging support wheel, a right discharging support wheel, a rotating shaft, a material shifting drive shaft and a transmission line, the turning drive shaft is rotatably connected to the turning frame, one end of the turning splint is fixedly connected to the turning drive shaft, and the other end of the turning splint is provided with a silicone pad inlet and outlet, the left feeding support wheel and the right feeding support wheel are both rotatably arranged at the feeding port of the turning frame, the left discharging support wheel and the right discharging support wheel are both rotatably arranged at the discharging port of the turning frame, the left discharging support wheel is connected to the right discharging support wheel through the rotating shaft, the material shifting drive shaft is rotatably connected to the turning frame, and is also transmission-connected to the rotating shaft, the left feeding support wheel and the left discharging support wheel are connected through the transmission line, and the turning device is used to first turn over the silicone pad semi-finished product with the first side attached, and then transmit it to the second tearing hand release paper attaching device; The second tear-off release paper attaching device has the same structure as the first tear-off release paper attaching device. The second tear-off release paper attaching device is used to first tear off the second release paper located on the second side of the semi-finished silicone pad, and then attach the second tear-off release paper to the second side of the semi-finished silicone pad to obtain a finished silicone pad. The unloading and handling device is used to take away the finished silicone pad.

2. The automatic production line of a silicone pad with double-sided tear handle according to claim 1, characterized in that: The first tear-off release paper attaching device also includes a silicone appearance recognition camera and a tear-off release paper appearance recognition camera. The silicone appearance recognition camera and the tear-off release paper appearance recognition camera are both located above the conveyor belt mechanism and are electrically connected to the tear-off release paper attaching mechanism.

3. The automatic production line of a silicone pad with double-sided tear handle according to claim 1, characterized in that: The first tear-off release paper attaching device further includes a rolling mechanism, and the rolling mechanism is arranged at the discharge port of the conveyor belt.

4. The automatic production line of a silicone pad with double-sided tear handle according to claim 1, characterized in that: The double-sided tear-off release paper attaching machine also includes a material receiving and transporting device, which is electrically connected to the material unloading and transporting device. The material unloading and transporting device transports the finished silicone pad to the entrance of the material receiving and transporting device, and the controller of the material unloading and transporting device accumulates the number of transports. When the number of transports reaches a preset threshold, the material receiving and transporting device advances to a stacking area, and the number of transports is reset.

5. The automatic production line of a silicone pad with double-sided tear handle according to claim 1, characterized in that: There are four turning clamps, and the four turning clamps are evenly spaced and arranged around the turning drive shaft.

6. The automatic production line of a silicone pad with double-sided tear handle according to claim 1, characterized in that: The die-cutting machine comprises a feeding device, a die-cutting device and a 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 to clamp and feed the silicone coating 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 a cutting die and a support plate, 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 cutting die is fixedly connected to the top seat, the support plate is fixedly connected to the lifting seat, and the cutting die and the support plate are used for die-cutting the silicone coated sheet; The discharging device includes a discharging frame, a discharging roller, a tearing plate and a receiving shaft. 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 entrance of the conveyor is located below the discharging roller, the gap between the tearing plate and the discharging roller is used to transport the silicone coated sheet after die-cutting, the receiving shaft is used to roll up the scraps separated from the silicone coated sheet, and the entrance of the conveyor is used to collect the silicone pad semi-finished products separated from the silicone coated sheet.

7. The automatic production line of silicone pads with double-sided tear handles according to claim 6, characterized in that: The feeder comprises a coating frame and a first upper coating roller, a first lower coating roller, a second upper coating roller, a second lower coating roller, a first unloading shaft, a second unloading shaft and a third unloading shaft rotatably arranged on the coating frame; The first unwinding shaft is used to install the first double-sided tape coil, the second unwinding shaft is used to install the second double-sided tape coil, and the third unwinding shaft is used to install the silicone coil; The second double-sided adhesive tape roll and the silicone roll both pass through the coating gap between the second upper coating roller and the second lower coating roller, and the second double-sided adhesive tape roll is applied to the lower surface of the silicone roll to obtain a silicone coated long strip semi-finished product; The semi-finished silicone coated long strip material and the first double-sided adhesive tape roll both pass through the adhesive coating gap between the first upper adhesive coating roller and the first lower adhesive coating roller, and the first double-sided adhesive tape roll is applied to the upper surface of the silicone roll to obtain a silicone coated long strip material finished product; The finished silicone coated long strip material replaces the silicone coated sheet material and enters the die-cutting machine.

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