A fully automatic rewinding device for silicone pressure-sensitive tape after slitting

Abstract

This invention relates to the field of tape winding machine technology, specifically disclosing a fully automatic winding device for silicone pressure-sensitive tape after slitting. The device includes a frame, a disc rotatably mounted on one side of the upper end of the frame, and at least four winding shafts rotatably mounted on one side of the disc. A paper tube trough is located on one side of the suspended end of the winding shaft, and a guide cylinder aligned with the rear winding shaft is located at the lower end of the paper tube trough. A first cylinder is mounted on the guide cylinder to push the paper tube into the winding shaft. A paper tube slitting and calibration mechanism is located behind the winding shaft, acting on the paper tube on the winding shaft. The fully automatic winding device for silicone pressure-sensitive tape after slitting disclosed in this invention realizes the entire process of automatic winding, cutting, residual material winding, unloading, paper tube assembly, paper tube slitting, and post-slitting paper tube position calibration and adjustment during the tape slitting and winding process. The entire device has a high degree of automation, effectively improves work efficiency, and has excellent performance.

Description

Technical Field

[0001] This invention relates to the field of tape winding machine technology, and specifically discloses a fully automatic winding device for silicone pressure-sensitive tape after slitting. Background Technology

[0002] Silicone laminating tape is a special type of tape widely used in the medical field. During its production, the entire roll of silicone laminating tape is cut into multiple rolls of equal width using a slitting machine, and then each roll is individually packaged and sold.

[0003] Most existing tape slitting and winding machines are semi-automated. While the tape winding process is automated, manual assistance is required when switching the inner paper rolls on the winding rollers. The typical procedure involves collecting one set of tape rolls, removing the entire winding roller from the machine, separating the tape roll along with the inner paper rolls, and then loading a new set of inner paper rolls onto the winding roller before resuming operation. Furthermore, the inner paper rolls need to be slit at equal intervals by a slitter before being loaded onto the rollers. This makes the entire tape slitting, collection, and switching process extremely complex and cumbersome, severely impacting the overall production efficiency of the tape production line.

[0004] For example, utility model patent application number CN218560557U discloses an automatic detection and cutting device for unwinding and winding, which includes an unwinding mechanism, a first traction mechanism, a printing mechanism, a second traction mechanism, and a winding mechanism arranged sequentially from front to back; wherein, the winding mechanism includes a winding frame, two winding rollers, and a winding pressing and cutting mechanism. The winding frame is provided with a winding station and a winding standby station. The two winding rollers can be rotatably arranged on the winding frame and are respectively arranged parallel to the winding station and the winding standby station. The winding frame is also provided with a winding flipping drive mechanism that can drive the winding roller in the winding standby station and the winding roller in the winding station to flip and exchange positions in a clockwise direction. The winding mechanism in this patent uses winding rollers at the winding station and the winding standby station for switching back and forth. While this ensures continuous operation of the entire equipment, the separation of the tape rolls from the winding rollers and the loading of new paper tubes require manual operation after the winding rollers are removed. Furthermore, the cutting of the paper tubes requires pre-processing, making the entire process cumbersome and complex, and preventing full automation. Based on the shortcomings of existing tape slitting and winding machines in achieving full automation, this application proposes a fully automatic winding device for silicone pressure-sensitive tape after slitting, which effectively solves the above-mentioned technical problems. Summary of the Invention

[0005] The present invention aims to provide a fully automatic winding device for silicone pressure-sensitive tape after slitting, so as to realize automatic winding, cutting, residual material winding, unloading, paper tube assembly, paper tube slitting, and paper tube position calibration and adjustment after slitting during the winding process of silicone pressure-sensitive tape after slitting, thereby achieving fully automated processing.

[0006] This invention is achieved through the following technical solution:

[0007] A fully automatic rewinding device for silicone pressure-sensitive tape after slitting includes a frame, a disc is rotatably arranged on one side of the upper end of the frame, and at least four rewinding shafts are rotatably mounted on one side of the disc in a circumferential manner. A drive device for driving the rotating shaft at the center of the disc and a drive assembly for driving the rewinding shaft at the corresponding workstation are arranged on the other side of the disc.

[0008] A paper tube feed trough is provided on one side of the suspended end of the take-up shaft. A guide cylinder aligned with the rear take-up shaft is provided at the lower end of the paper tube feed trough. A first cylinder is provided on the guide cylinder to push the paper tube into the take-up shaft. A paper tube slitting and calibration mechanism that acts on the paper tube on the take-up shaft is provided behind the take-up shaft.

[0009] The paper tube slitting and calibration mechanism includes a fixed L-shaped frame. A movable frame, pushed by a second cylinder onto the paper tube on the take-up shaft, is mounted on the L-shaped frame. The movable frame contains a first sliding rod and a first lead screw parallel to the take-up shaft, with the end of the first lead screw connected to a first lead screw motor. The movable frame contains a row of knife holder blocks, with equidistant telescopic frames between the knife holder blocks. Each knife holder block has a sliding hole that mates with the first sliding rod and a through hole with a diameter larger than the first lead screw. The innermost knife holder block is fixedly connected to the movable frame, and the outermost knife holder block has a lead screw nut in its through hole that mates with the first lead screw. Each row of knife holder blocks is equipped with a pressure cutter facing the take-up shaft, and the cutting edge of the pressure cutter is shaped into a round opening that matches the take-up shaft.

[0010] The fully automatic rewinding device for silicone pressure-sensitive tape disclosed in this invention, after unloading, allows the rewinding shaft to be axially aligned with the guide cylinder under the rotation drive of the disc. After alignment, the first cylinder sets the entire cylindrical paper tube into the position set by the rewinding shaft, and then the rewinding shaft fixes the paper tube.

[0011] Then, the second cylinder is activated to push the moving frame toward the paper tube, so that a row of pressure cutters can cut into the inner circle of the paper tube. Then, the corresponding drive component is activated to make the winding shaft rotate once. During the rotation of the winding shaft, the paper tube can complete the ring cutting process under the action of the pressure cutter, thus dividing it into small paper tubes of equal width.

[0012] Next, the take-up shaft removes its fixing force on the paper tubes, and the first lead screw motor is activated, causing the outermost blade holder block to move towards the disc. During this movement, the equidistant telescopic frame helps to evenly distribute the blade holder blocks. At this point, the pressure cutter acts as a material guide, evenly distributing the slit paper tubes one by one. Once they are arranged to the set position, the take-up shaft simultaneously fixes them in place. Finally, the rotation of the disc allows the take-up shaft containing the paper tubes to be rotated and switched to the tape winding station for direct winding. The entire process is fully automated, eliminating the need for manual removal of the take-up shaft, unloading, and subsequent reassembly of the slit paper tubes.

[0013] As a further feature of the above solution, the winding shaft is an air-expanding shaft or keyway shaft capable of actively tightening or loosening the paper tube.

[0014] As a further provision of the above scheme, a stand is provided on the other side of the disk, and a bearing that cooperates with the rotating shaft is provided at the upper end of the stand. The drive device is provided on the stand and connected to the end of the rotating shaft. The drive assembly includes a first motor provided at the upper end of the stand and a second motor provided on the front and rear sides of the stand. A third gear is provided on the first motor, and a fourth gear is provided on each of the two second motors. The third gear and the two fourth gears are all on the same ring with the rotating shaft as the center. The end of each winding shaft is provided with a first gear that can mesh with the third gear and the fourth gear.

[0015] The above is one of the specific design methods of the drive device and drive components. The drive device can rotate the disk at a fixed angle to switch the work position. When the take-up shaft is rotated to the corresponding work position, the corresponding first motor or second motor can be started to complete the corresponding action.

[0016] As a further provision of the above solution, a tape cutting mechanism is provided on the frame located between the upper take-up shaft and the front take-up shaft. The tape cutting mechanism includes a pin that is rotatably connected to the side end of the frame. One end of the pin is connected to a rocker arm, and the end of the rocker arm is connected to a blade holder bar that is parallel to the take-up shaft. A cutting blade with its blade facing the upper take-up shaft is installed on the blade holder bar. The other end of the pin is connected to a power unit.

[0017] As a further provision of the above solution, the power assembly includes an eccentric disc connected to a pin shaft and a hydraulic telescopic rod rotatably mounted on the frame, the end of which is connected to the eccentric disc.

[0018] The tape cutting mechanism described above switches positions by rotating a disc after a set of tapes is wound up. During the rotation of the winding shaft, the excess tape is pulled until the next set of winding rollers, along with the paper roll, rotates to the top winding position. Then, the hydraulic telescopic rod is activated to rotate the swing arm toward the top winding roller. The cutting blade then presses the pulled-out tape onto the new set of paper rolls to complete the adhesion and cutting action. After cutting, the new set of paper rolls can be quickly put into the winding process under the rotation of the winding shaft. The finished tape roll can continue to rotate at a certain angle to complete the winding of the excess tape.

[0019] As a further feature of the above scheme, a squeeze roller is rotatably mounted on the frame, and the squeeze roller is located on the front side of the front take-up shaft.

[0020] As a further provision of the above scheme, an automatic unloading mechanism is provided at the lower end of the frame. The automatic unloading mechanism includes a guide seat located below the opposite side of the disc. A second slide rod and a second lead screw parallel to the winding shaft are provided between the guide seat and the side end of the frame. The end of the second lead screw is connected to a second lead screw motor. An unloading push plate is provided between the second slide rod and the second lead screw. The unloading push plate has a sliding hole that cooperates with the second slide rod and a nut block that cooperates with the second lead screw. A U-shaped insertion opening is provided at the upper end of the unloading push plate.

[0021] As a further provision of the above solution, a tape roll conveying device is provided below the guide seat. The tape roll conveying device includes a conveyor seat arranged perpendicular to the winding shaft, and a conveyor belt is provided in the conveyor seat.

[0022] The aforementioned automatic unloading mechanism and tape roll conveying device are used together. After the remaining tape roll is wound up, the rotating disc rotates the winding shaft and the tape roll together to the lowest position. First, the winding shaft releases the fixing effect on the tape roll. Then, the second screw motor on the automatic unloading mechanism is started, so that the unloading push plate moves from one side of the disc toward the guide seat. At this time, under the action of the unloading push plate, a row of tape rolls can be directly fed into the guide seat, and then the guide seat will drop them onto the tape roll conveying device for delivery.

[0023] As a further feature of the above solution, the frame includes a base plate and a side plate, the side plate being vertically fixed to one end of the base plate, and the side plate having a circular hole that interacts with the disc.

[0024] Compared with the prior art, the present invention has at least the following beneficial effects:

[0025] The fully automatic rewinding device for silicone pressure-sensitive tape disclosed in this invention utilizes a coordinated design between a paper tube feed trough, a guide cylinder, a first cylinder, and a paper tube slitting and calibration mechanism. After the tape roll is unloaded, the entire straight cylindrical paper tube is automatically loaded onto the rewinding shaft. Then, using the paper tube slitting and calibration mechanism in conjunction with the rewinding shaft itself, the paper tube is first slitting to a fixed length, and then the position of the slitting paper tube on the rewinding shaft is adjusted. This allows the rewinding shaft to rotate to the tape rewinding station and directly perform the rewinding operation. The entire process does not require removing the rewinding roller or pre-slitting the paper tube, effectively avoiding the cumbersome steps of switching paper tubes on the existing rewinding roller, reducing the factory's personnel input, improving the overall machine operating efficiency, and has the positive significance of reducing manpower and increasing efficiency.

[0026] This invention further incorporates a tape cutting mechanism, an automatic unloading mechanism, and a tape roll conveying device. After the tape roll is switched at the rewinding station, the tape is cut first, and the next set of paper rolls is bonded to the tape, ensuring that the next set of paper rolls is quickly put into the rewinding operation. Then, the remaining tape material after cutting is switched to the unloading station after rewinding, and the automatic unloading mechanism directly pushes a set of tape rolls to the tape roll conveying device, which then transfers them to the packaging process. The entire process does not require removing the rewinding shaft from the equipment, realizing the automatic rewinding, cutting, remaining material winding, unloading, paper roll assembly, paper roll slitting, and post-slitting paper roll position calibration and adjustment of the entire tape slitting and rewinding process. The entire device has a high degree of automation, effectively improves work efficiency, and has excellent performance. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a three-dimensional structural diagram of the present invention from a first angle;

[0029] Figure 2 This is a schematic diagram of the second-angle three-dimensional structure of the present invention;

[0030] Figure 3 This is a three-dimensional structural diagram of the frame, automatic unloading mechanism, etc. in this invention;

[0031] Figure 4 This is a schematic diagram of the three-dimensional structure of the disk, winding shaft, etc. in this invention;

[0032] Figure 5 This is a three-dimensional structural diagram of the paper tube feed trough, winding shaft, paper tube slitting and calibration mechanism, etc. in this invention;

[0033] Figure 6 This is a three-dimensional structural diagram of the paper tube cutting and calibration mechanism in this invention;

[0034] Figure 7 This is a schematic diagram of the three-dimensional structure of the knife holder block, equidistant telescopic frame, and pressure cutting knife in this invention;

[0035] Figure 8 This is a three-dimensional structural diagram of the tape cutting mechanism in this invention;

[0036] Figure 9 This is a side view of the working position when the disk rotates to switch stations in this invention. Detailed Implementation

[0037] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-9 This application will be described in detail with reference to the embodiments. Example 1

[0039] Example 1 discloses a fully automatic winding device for silicone pressure-sensitive tape after slitting, see attached figure. Figure 1-4 The system includes a frame 1 and a control box 2. The frame 1 consists of a base plate 101 and a side plate 102 fixed vertically at one end, with a circular hole 103 at the upper end of the side plate. A disc 3 is rotatably mounted in the circular hole 103. Multiple take-up shafts 4 are evenly arranged on the same side of the disc 3, and the other ends of the multiple take-up shafts 4 are suspended. Specifically, the take-up shafts 4 can be air-expansion shafts or keyed shafts, which can actively tighten or loosen the inserted paper tube. In the specific design, there should be no less than four take-up shafts 4. In this figure, there are four take-up shafts 4, one above and one below, corresponding to the winding and unloading stations respectively, and one in front and one behind, corresponding to the waste material handling and tube loading stations respectively.

[0040] A shaft rotatably connected to a disc 3 is provided at one end of the take-up shaft 4, and a first gear 401 is provided at the end of the shaft passing through the disc 3. A stand 5 is fixed on the base plate 101 on the side away from the take-up shaft 4, and a bearing is provided at the upper end of the stand 5. A rotating shaft 301 is provided at the center of the disc 3, and the rotating shaft 301 is connected to the bearing on the stand 5. A drive device for the rotating shaft 301 is also provided on the stand 5. The specific drive device can be a combination of a gearbox and a motor, and a second gear 302 that meshes with the rotating shaft 301 is provided at the end of the rotating shaft 301.

[0041] A first motor 6 is installed on the upper end of the stand 5. A third gear 601 is provided on the first motor 6. A second motor 7 is installed on both the front and rear sides of the stand 5. A fourth gear 701 is provided on each of the second motors 7. The third gear 601 and the two fourth gears 701 are all on the same ring with the rotating shaft 301 as the center. This allows the first gear 401 at the end of the winding shaft 4 to mesh with the three motors in turn after the disc 3 rotates and switches positions, thereby realizing the winding, waste material handling and loading process.

[0042] Reference Appendix Figure 1 and attached Figure 5 A paper tube trough 8 is provided on the side of the frame 1. The paper tube trough 8 contains cylindrical paper tubes 10. The lower end of the paper tube trough 8 is stably supported by a bracket 803. A guide cylinder 801 is connected to the lower end of the paper tube trough 8. The guide cylinder 801 has an opening on one side near the side plate 102 and is axially aligned with the take-up shaft 4 at the rear station. A first cylinder 802 is provided at the sealed end of the guide cylinder 801. This first cylinder 802 can also be replaced by other telescopic drive components such as hydraulic telescopic rods or electric push rods. A pusher block (not shown in the figure) is provided inside the guide cylinder 801 and connected to the piston rod of the first cylinder 802. This allows the paper tube in the guide cylinder 801 to be pushed towards the aligned take-up shaft 4 when the first cylinder 802 extends, so that it can be smoothly fitted into the fixed position on the take-up shaft 4, and then fixed by the action of the take-up shaft 4.

[0043] Reference Appendix Figure 2 Appendix Figure 6 and attached Figure 7A paper tube slitting and calibration mechanism 9 is provided on the rear side of the frame 1, and the paper tube slitting and calibration mechanism 9 acts on the paper tube 10 mounted on the take-up shaft 4 at the rear station. The paper tube slitting and calibration mechanism 9 includes an L-shaped frame 901 fixedly installed on the rear side of the take-up shaft 4 at the rear station. A U-shaped movable frame 902 is provided in the L-shaped frame 901, and a second cylinder 903 is installed on the back of the L-shaped frame 901 to push the movable frame 902 toward the take-up shaft 4. To ensure the stability of the movable frame 902 during movement, a slide rail 904 is also provided on the L-shaped frame 901, and a groove matching the slide rail 904 is opened on the side end of the movable frame 902.

[0044] The movable frame 902 is equipped with a first slide rod 905 and a first lead screw 906 parallel to the take-up shaft 4. Specifically, two first slide rods 905 are provided, distributed on the upper and lower sides of the first lead screw 906. The two first slide rods 905 are fixedly connected to the movable frame 902, while the first lead screw 906 is rotatably mounted in the movable frame 902. One end of the first lead screw 906 is also connected to a first lead screw motor 907. A row of equally spaced tool holder blocks 908 are provided in the movable frame 902. Each tool holder block 908 has a sliding hole adapted to the first slide rod 905 and a through hole with a diameter larger than that of the first lead screw 906. The innermost tool holder block 908 is fixedly connected to the movable frame 902 via a connecting block 909, and the outermost tool holder block 908 has a lead screw nut 910 adapted to the first lead screw 906 at its through hole. An equidistant telescopic frame 911 is then connected to the row of tool holder blocks 908. Finally, a cutting blade 912 is installed on each blade block 908. The cutting edge of the cutting blade 912 faces the winding shaft 4, and its end is set in a round shape with a diameter slightly larger than that of the winding shaft 4.

[0045] In this embodiment 1, when the paper tube slitting and calibration mechanism 9 is running, the second cylinder 903 is first started to move the L-shaped frame 901 toward the rear winding shaft 4. Then, a row of pressure cutters 912 will cut into the paper tube 10 on the winding shaft 4. Subsequently, the second motor 7 is started and the winding shaft 4 is rotated through gear meshing. During the rotation of the winding shaft 4, the paper tube 10 will be rotated one revolution to complete the equidistant cutting of the paper tube 10.

[0046] After the paper tube 10 is cut, the paper tube is first released from the fixed state of the take-up shaft 4, and then the first lead screw motor 907 is controlled to rotate. Then, under the action of the first lead screw, the lead screw nut and the equidistant telescopic frame 911, a row of knife block 908 will expand equidistantly towards the disk 3. At this time, the pressure cutter 912 can evenly spread the cut paper tubes at equal intervals. After spreading, all the cut paper tubes can be tightened and fixed by the take-up shaft 4.

[0047] Reference Appendix Figure 1 and attached Figure 8The frame 1 is also equipped with a tape cutting mechanism 11. Specifically, the tape cutting mechanism 11 includes a pin 111 rotatably mounted on the upper front end of the side plate 102. A rocker arm 112 is connected to one end of the pin 111, and a blade holder 113 parallel to the take-up shaft 4 is connected to the end of the rocker arm 112. A cutting blade 114 with its blade facing upward toward the take-up shaft 4 is installed in the blade holder 113 by screws. In addition, an eccentric disc 115 is connected to the other end of the pin 111. A hydraulic telescopic rod 116 is connected to the eccentric disc 115, and the hydraulic telescopic rod 116 is rotatably connected to the side plate 102.

[0048] When a set of tape rolls is finished winding and needs to be switched, the drive unit controls the disc 3 to rotate 90°. After the rotation and switching, the winding shaft 4, which previously contained the paper tube, will move to the top, and during the rotation, it will pull the tape closer to the new paper tube 10 (see attached). Figure 9 Then, the hydraulic telescopic rod 116 is activated to rotate the eccentric disc 115. Under the action of the swing rod 112, the knife holder 113 and the cutting knife 114 will move towards the upper end of the paper tube 10, thereby pressing the stretched tape onto the paper tube 10 to complete the adhesion and cutting action. At this time, the uppermost winding shaft 4 can quickly engage in the winding process of the tape. The tape roll after cutting will continue to rotate a certain number of times under the action of the winding roller 4, thereby winding up the stretching material after the tape is cut. In order to ensure the winding effect, a squeezing roller 12 that interacts with the tape roll is also provided on the outside of the winding roller 4. Example 2

[0049] Example 2 discloses a fully automatic rewinding device for silicone pressure-sensitive tape after slitting, which is further optimized and improved based on the technical solution in Example 1. The similarities with Example 1 will not be described again. The main features of Example 2 are that an automatic unloading mechanism 13 and a tape roll conveying device 14 are provided at the lower end of the frame 1.

[0050] Reference Appendix Figure 3 The specific automatic unloading mechanism 13 includes a guide seat 131 fixed on the base plate 101. The guide seat 131 is located away from the side plate 102, and its upper end is provided with an arc-shaped guide groove adapted to the tape roll. A second slide rod 132 and a second lead screw 133 parallel to the take-up shaft 4 are provided between the guide seat 131 and the side plate 102, and a second lead screw motor 134 for driving the second lead screw 133 is provided on the guide seat 131. An unloading push plate 135 is provided between the second slide rod 132 and the second lead screw 133. The upper end of the unloading push plate 135 has a U-shaped insertion opening, and the lower end of the unloading push plate 135 is provided with a sliding hole and a nut block adapted to the second slide rod 132 and the second lead screw 133.

[0051] The tape roll conveying device 14 includes a conveying seat 141 arranged perpendicular to the winding shaft 4, a conveyor belt 142 is arranged in the conveying seat 141, and one end of the conveyor belt 142 is arranged directly below the feed port of the guide seat 131.

[0052] The fully automatic rewinding device for silicone pressure-sensitive adhesive tape disclosed in Embodiment 2 realizes a fully automated collection process after tape slitting. The specific steps are as follows:

[0053] S1: Start the drive device to rotate the take-up shaft 4 on the disc 3 to the rear side and align it with the guide tube 801 axially. Then control the first cylinder 802 to extend, thereby pushing the paper tube in the guide tube 801 toward the take-up shaft 4 until the paper tube is completely fitted into the set position on the take-up shaft 4. Then the take-up shaft 4 tightens and fixes the paper tube.

[0054] S2: Start the paper tube slitting and calibration mechanism 9. First, push a row of cutting blades 912 onto the paper tube on the winding shaft 4, so that the cutting blades 912 cut into the inner circle of the paper tube. Then, control the winding shaft 4 to rotate one revolution. Under the action of the winding shaft 4 rotating one revolution, the cutting blades 912 can complete the equidistant cutting process of the paper tube. After cutting, first release the tension of the winding shaft 4 on the paper tube, and then start the first lead screw motor 907, so that a row of blade holder blocks 908 expand equidistantly towards the direction of the disc 3. At this time, the cutting blades 912 can evenly spread the cut paper tubes at equal distances. After spreading, the winding shaft 4 will tighten and fix all the cut paper tubes again.

[0055] S3: Start the drive device to rotate the take-up shaft 4, which is equipped with the slit paper tube, to the top. During the upward rotation of the take-up shaft 4, it will adhere to the previous row of pulled tape. Then, start the hydraulic telescopic rod 116 in the tape cutting mechanism 11, so that the knife holder bar 113 and the cutting knife 114 move towards the upper end of the paper tube 10, thereby pressing the pulled tape onto the paper tube 10 to complete the adhesion and cutting action. After cutting, start the take-up shaft 4 to rotate at high speed to achieve the winding of a new set of tape until the winding is completed.

[0056] S4: After the tape is wound up, continue to start the drive device to rotate the winding shaft 4 to the front, and then start the tape cutting mechanism 11 to cut it. After cutting, control the winding shaft 4 to rotate one revolution. During the rotation, all the cut material can be wound up.

[0057] S5: Restart the drive device to rotate the take-up shaft 4 to the bottom, first release the tensioning and fixing effect of the take-up shaft 4 on the tape roll, then start the second screw motor 134 in the automatic unloading mechanism 13. Under the transmission of the second screw 133, the unloading push plate 135 moves from one side of the disc 3 toward the guide seat 131, so that a row of tape rolls is pushed to the upper end of the guide seat 131, and then the guide seat 131 arranges the tape rolls onto the tape roll conveyor 14 to complete the unloading. After the unloading is completed, repeat the above steps.

[0058] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method of using a fully automatic rewinding device for slit silicone pressure-sensitive adhesive tape, wherein the fully automatic rewinding device for slit silicone pressure-sensitive adhesive tape includes a frame, characterized in that... A disc is rotatably mounted on one side of the upper end of the frame. At least four take-up shafts are rotatably mounted on one side of the disc. A drive device for driving the rotating shaft at the center of the disc and a drive assembly for driving the take-up shaft at the corresponding workstation are provided on the other side of the disc. A paper tube feed trough is provided on one side of the suspended end of the take-up shaft. A guide cylinder aligned with the rear take-up shaft is provided at the lower end of the paper tube feed trough. A first cylinder is provided on the guide cylinder to push the paper tube into the take-up shaft. A paper tube slitting and calibration mechanism that acts on the paper tube on the take-up shaft is provided behind the take-up shaft. The paper tube slitting and calibration mechanism includes a fixed L-shaped frame, on which a movable frame is mounted, which is pushed onto the paper tube by a second cylinder. The movable frame contains a first sliding rod and a first lead screw parallel to the winding shaft, and the end of the first lead screw is connected to a first lead screw motor. The movable frame contains a row of knife holder blocks, and equidistant telescopic frames are arranged between the row of knife holder blocks. Each knife holder block has a sliding hole that mates with the first sliding rod and a through hole with a diameter larger than that of the first lead screw. The innermost knife holder block is fixedly connected to the movable frame, and the through hole of the outermost knife holder block contains a lead screw nut that mates with the first lead screw. Each row of knife holder blocks is equipped with a pressure cutter facing the winding shaft, and the blade end of the pressure cutter is set in a round opening shape that matches the winding shaft. The winding shaft is an air-expansion shaft or keyway shaft that can actively tighten or loosen the paper tube; The paper tube slitting and calibration mechanism is activated. First, a row of cutting blades is pushed onto the paper tube on the winding shaft, causing the cutting blades to cut into the inner circle of the paper tube. Then, the winding shaft is controlled to rotate one revolution. Under the action of the winding shaft rotating one revolution, the cutting blades complete the equidistant cutting process of the paper tube. After cutting, the tension of the winding shaft on the paper tube is released first, and then the first lead screw motor is activated, causing a row of blade holder blocks to expand equidistantly towards the disc. At this time, the cutting blades will evenly spread the slit paper tubes at equal intervals. After spreading, the winding shaft will tighten and fix all the slit paper tubes again.

2. The method of using the fully automatic rewinding device for silicone pressure-sensitive tape after slitting according to claim 1, characterized in that, A stand is provided on the other side of the disc. A bearing that cooperates with the rotating shaft is provided at the upper end of the stand. The drive device is provided on the stand and connected to the end of the rotating shaft. The drive assembly includes a first motor provided on the upper end of the stand and a second motor provided on the front and rear sides of the stand. A third gear is provided on the first motor and a fourth gear is provided on each of the two second motors. The third gear and the two fourth gears are all on the same ring with the rotating shaft as the center. A first gear that can mesh with the third gear and the fourth gear is provided at the end of each winding shaft.

3. The method of using the fully automatic rewinding device for silicone pressure-sensitive tape after slitting according to claim 1, characterized in that, A tape cutting mechanism is installed on the frame located between the upper take-up shaft and the front take-up shaft. The tape cutting mechanism includes a pin that is rotatably connected to the side end of the frame. One end of the pin is connected to a rocker arm, and the end of the rocker arm is connected to a blade holder bar that is parallel to the take-up shaft. A cutting blade with its blade facing the upper take-up shaft is installed on the blade holder bar. The other end of the pin is connected to a power unit.

4. The method of using the fully automatic rewinding device for silicone pressure-sensitive tape after slitting according to claim 3, characterized in that, The power assembly includes an eccentric disc connected to a pin shaft and a hydraulic telescopic rod rotatably mounted on the frame, with the end of the hydraulic telescopic rod connected to the eccentric disc.

5. The method of using the fully automatic rewinding device for silicone pressure-sensitive tape after slitting according to claim 3 or 4, characterized in that, A squeeze roller is rotatably mounted on the frame, and the squeeze roller is located in front of the front take-up shaft.

6. The method of using the fully automatic rewinding device for silicone pressure-sensitive tape after slitting according to claim 1, characterized in that, An automatic unloading mechanism is provided at the lower end of the frame. The automatic unloading mechanism includes a guide seat located below the opposite side of the disc. A second slide rod and a second lead screw parallel to the winding shaft are provided between the guide seat and the side end of the frame. The end of the second lead screw is connected to a second lead screw motor. An unloading push plate is provided between the second slide rod and the second lead screw. The unloading push plate has a sliding hole that cooperates with the second slide rod and a nut block that cooperates with the second lead screw. A U-shaped insertion opening is provided at the upper end of the unloading push plate.

7. The method of using the fully automatic rewinding device for silicone pressure-sensitive tape after slitting according to claim 6, characterized in that, A tape roll conveying device is provided below the guide seat. The tape roll conveying device includes a conveyor seat that is perpendicular to the winding shaft, and a conveyor belt is provided in the conveyor seat.

8. The method of using the fully automatic rewinding device for silicone pressure-sensitive tape after slitting according to claim 1, characterized in that, The frame includes a base plate and a side plate. The side plate is vertically fixed to one end of the base plate, and a circular hole is provided on the side plate to interact with the disc.

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