Unwinding and receiving device

Abstract

The invention discloses an unwinding and receiving device, which relates to the technical field of film production and comprises a winding mechanism and a receiving mechanism arranged on one side of the winding mechanism. The material rolling mechanism comprises two symmetrically-arranged supporting plates, the two supporting plates are connected through a fixing rod, rotating discs are rotationally arranged in the middles of the two supporting plates, supports are installed on the opposite faces of the two rotating discs, and two material rolling rollers and two sets of adjusting rollers are arranged between the two supports. Two second driving motors are arranged on the outer side of the rotating disc, and the output ends of the second driving motors are connected with the winding roller. According to the material receiving mechanism, the movable material receiving frame is arranged on the material receiving mechanism, the material receiving frame can be pushed to a designated position, the material receiving speed can be increased, and a shorter material receiving head is kept; the unwinding and receiving device can receive materials without shutdown under the condition of different speeds and different materials.

Description

Technical Field

[0001] This invention belongs to the field of thin film production technology, and specifically relates to an unwinding and splicing device. Background Technology

[0002] In the field of film production and processing, the unwinding and splicing device is a key piece of equipment connecting upstream and downstream processes, and its performance directly affects production efficiency, product quality, and cost control. As downstream industries such as packaging, electronics, and optics continue to increase their requirements for the precision, strength, and continuity of film materials, traditional unwinding and splicing technology has gradually revealed its shortcomings in adapting to high-speed and high-stability production, becoming a significant bottleneck restricting industry upgrades.

[0003] Chinese Patent (Authorization Announcement No. CN218707711U) discloses an automatic unwinding and feeding device, including a frame, a swing assembly at the left end of the frame, an active feeding pressure roller at the bottom end of the swing assembly, a feeding cutter at the right end of the swing assembly, and a through-shot limit switch at the bottom end of the swing assembly. A rotating column is rotatably connected to the middle of the frame via a bearing. A tilting disc is located at the front end of the rotating column, and a tilting gear ring is fixedly fitted to the rear end of the rotating column extending to the rear end of the setting frame. A new roll of material is located at the front end of the tilting disc, and the input end of the new roll is connected to the output end of a driver. This automatic unwinding and feeding device features a low-cost, precise tape detection device, a pre-speed function for the feeding pressure roller, and, through testing, the required hardness of the feeding pressure roller during the feeding process. The feeding cutter incorporates a pressurized, rapid exhaust function to ensure that the cutter can instantly complete the feeding action at a speed of 600 m / min.

[0004] The feeding speed of the aforementioned automatic unwinding and feeding device can no longer keep up with the production pace at the front end. When the feeding speed does not match the production line speed, it can easily cause drastic fluctuations in material tension, leading to wrinkles, stretching, or even breakage of the film, resulting in a large number of defective products. In order to adapt to high-speed production, some companies have been forced to adopt a multi-unit alternating operation mode, which not only increases equipment investment but also increases the complexity of workshop management.

[0005] The success rate of automatic material feeding is generally below 95%, and for some thin films (such as PET film with a thickness of <20μm), the success rate is even less than 80%. The main reasons for failure are insufficient positioning accuracy of the tape between the new and old rolls and unreasonable design of the pressure roller structure, which further exacerbates the risk of failure.

[0006] Insufficient material adaptability limits the application range of the device, as it is designed only for a single type of film and cannot meet the splicing requirements of films with different materials and thicknesses. For example, PE film has low surface tension, and conventional adhesive tape bonding is prone to incomplete adhesion.

[0007] Tension control struggles to cope with the nonlinear dynamic changes at the moment of material contact and lacks the ability to adaptively adjust to different material properties. When changing material batches, parameters need to be recalibrated, increasing operational complexity.

[0008] In summary, existing unwinding and splicing devices suffer from technical deficiencies in speed adaptation, splicing accuracy, and tension control, failing to meet the high-quality, high-efficiency, and low-loss production demands of the modern film industry. Developing a new generation of unwinding and splicing devices with high-speed, precise splicing, high success rate, and stable tension control has become an urgent need to drive technological upgrading in the film industry. Summary of the Invention

[0009] The purpose of this invention is to address the technical deficiencies of existing film unwinding and splicing devices in terms of speed adaptation, splicing accuracy, and tension control, and to provide an unwinding and splicing device.

[0010] The present invention is achieved through the following technical solution: an unwinding and receiving device, comprising a winding mechanism and a receiving mechanism disposed on one side of the winding mechanism;

[0011] The winding mechanism includes two symmetrically arranged support plates connected by a fixed rod. A rotating disk is rotatably mounted in the middle of each support plate. A bracket is mounted on the opposite surface of each rotating disk, and two winding rollers and two sets of adjusting rollers are arranged between the two brackets. Two drive motors are arranged on the outer side of the rotating disks. The output end of each drive motor is connected to the winding rollers for winding the unwound plastic film.

[0012] The receiving mechanism includes two symmetrically arranged wall panels, which are connected by a fixed rod. Three grinding rollers and a tension roller are provided between the two wall panels. A movable receiving frame is provided at the upper end of each wall panel, which is used to push the receiving frame to a designated position, thereby improving the receiving speed and maintaining a shorter receiving head.

[0013] Preferably, the receiving rack includes two symmetrically arranged wall panels II, with two pressure rollers and a rotating roller between the two wall panels II. Each of the two wall panels II has a slide block I at its lower end and a slide rail I at its upper end. The slide block I is slidably mounted on the slide rail I. A drive motor III is installed on the outer side of each wall panel II. The output end of the drive motor III is connected to a drive rod. The drive rod passes through the two wall panels I and has drive gears on both sides. A rack plate is also provided at the lower end of each wall panel II. The rack plate meshes with the drive gears for transmission.

[0014] The rotation of the drive motor drives the drive rod and drive gear to rotate, thereby driving the rack plate to move, and thus the entire receiving frame moves accordingly.

[0015] Preferably, a slide rail is installed on the inner side of the second wall panel, and a slide block is slidably disposed on the slide rail. The two ends of the pressure roller are connected to the slide blocks at both ends by fixing plates, and the pressure roller is rotatably connected to the fixing plates. A cylinder is provided on the inner side wall of the second wall panel. One end of the cylinder is fixedly connected to the second wall panel, and the other end is connected to one end of the fixing plate. By extending and retracting the cylinder, the pressure roller can be driven to move along the slide rail, thereby bringing the pressure roller closer to the winding roller.

[0016] Preferably, a cutting blade is provided between the two pressure rollers, a slide rail three is installed on the inner side of the second wall panel, a slide block three is slidably arranged on the slide rail three, the two ends of the cutting blade are fixedly connected to the slide blocks three on both sides, a cylinder two is provided on the inner side wall of the second wall panel, one end of the cylinder two is fixedly connected to the second wall panel, and the other end is connected to one side of the cutting blade.

[0017] By extending and retracting cylinder two, the cutting blade is driven to move along slide rail three directions, thereby enabling the cutting blade to complete the cutting action.

[0018] Preferably, the two ends of the tension roller are connected to the inner wall of the first wall panel via a tension frame. The tension frame is U-shaped, with the upper parts of both sides of the tension frame rotatably connected to the two first wall panels respectively. The two ends of the tension roller are rotatably connected to the inner frame of the tension frame. The inner wall of the first wall panel is provided with a third cylinder. One end of the third cylinder is rotatably connected to the first wall panel, and its telescopic end is rotatably connected to the lower part of the tension frame.

[0019] During use, the tension roller is moved away from or closer to the grinding roller by the extension and retraction of cylinder three, thereby adjusting the tension of the plastic film.

[0020] Preferably, one of the rotating disks has a ring gear on its outer side, and a drive motor is mounted on a support plate near the ring gear. The output end of the drive motor is equipped with a gear, which meshes with the ring gear for transmission. The drive motor drives the ring gear to rotate, thereby driving the rotating disk to rotate and switching the coiling station.

[0021] Preferably, the two winding rollers and the two sets of adjusting rollers are arranged in a cross shape and spaced apart; the adjusting rollers are mounted on the inner support of the rotating disk by a drive adjusting component.

[0022] Preferably, the drive adjustment component includes a fixed frame, an adjustment track, and an adjustment cylinder. The fixed frame is mounted on a bracket, and the adjustment track is fixedly installed in the middle of the fixed frame. Adjustment roller mounting seats are symmetrically arranged at both ends of the adjustment track, and the two ends of the adjustment roller are arranged on the adjustment roller mounting seats on both sides. Two adjustment cylinders are arranged on both sides of the adjustment track. One end of the adjustment cylinder is rotatably mounted on the fixed frame, and the other end is connected to the adjustment roller mounting seat.

[0023] By extending and retracting two adjusting cylinders, two adjusting roller mounting seats are driven to move closer or further apart, thereby clamping or releasing the plastic film.

[0024] The present invention has the following advantages over the prior art:

[0025] 1. This invention provides a movable receiving frame on the receiving mechanism, which can be pushed to a designated position, thereby increasing the receiving speed and maintaining a shorter receiving head. The receiving frame is equipped with two movable pressure rollers. By moving the pressure rollers, the unwinding receiving device can receive materials without stopping the machine under different speeds and materials.

[0026] 2. This invention uses two cylinders to instantly push out the pressure roller, while two other cylinders push out the cutter. This quickly cuts different materials and can cut both sides. It solves the problem of resistance to the substrate in the original mechanical structure during the material receiving process, greatly improves the material receiving success rate to 100%, saves production time, and solves the waste caused by unstable material receiving.

[0027] 3. The present invention provides a tension roller on the receiving mechanism. During use, the tension roller is moved away from or closer to the grinding roller by the extension and retraction of cylinder three, thereby automatically adjusting the tension of the plastic film.

[0028] 4. This invention achieves material receiving without stopping the machine by setting up two sets of adjusting rollers in conjunction with two winding rollers to wind the material alternately, thereby improving work efficiency. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of an unwinding and receiving device;

[0030] Figure 2 This is a schematic diagram of the structure of an unwinding and splicing device after the outer casing has been disassembled.

[0031] Figure 3 This is an oblique view of the upper end of an unwinding and receiving device;

[0032] Figure 4 for Figure 3 An enlarged structural diagram of A in the middle;

[0033] Figure 5 A left view of an unwinding and splicing device;

[0034] Figure 6 for Figure 5 A cross-sectional view along the AA direction;

[0035] Figure 7 This is a schematic diagram of the receiving mechanism in an unwinding and receiving device;

[0036] Figure 8 This is an oblique view of the upper end of the receiving mechanism in an unwinding and receiving device;

[0037] Figure 9 This is a schematic diagram of the receiving frame in an unwinding and receiving device;

[0038] Figure 10 This is a left view of the receiving frame in an unwinding and receiving device;

[0039] Figure 11 for Figure 10 A cross-sectional view along the BB direction.

[0040] Numbers in the figure:

[0041] 100. Coiling mechanism; 101. Support plate; 102. Rotary disk; 103. Ring gear; 104. Drive motor one; 105. Drive motor two; 106. Adjusting roller; 107. Coiling roller; 108. Drive adjustment component; 1081. Fixing frame; 1082. Adjusting track; 1083. Adjusting cylinder; 1084. Adjusting roller mounting base;

[0042] 200. Receiving mechanism; 201. Wall panel one; 202. Tension roller; 203. Grinding roller; 204. Tension frame; 205. Slide rail one; 206. Wall panel two; 207. Pressure roller; 208. Cylinder one; 209. Cylinder two; 210. Rotating roller; 211. Slide seat one; 212. Slide rail two; 213. Slide seat two; 214. Drive gear; 215. Drive motor three; 216. Cutting blade; 217. Rack plate; 218. Cylinder three; 219. Slide rail three; 220. Slide seat three. Detailed Implementation

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] Example

[0045] Please see Figures 1-11 A winding and receiving device includes a winding mechanism 100 and a receiving mechanism 200 disposed on one side of the winding mechanism 100;

[0046] The winding mechanism 100 includes two symmetrically arranged support plates 101, which are connected by a fixed rod. A rotating disk 102 is rotatably mounted in the middle of each support plate 101. A bracket is mounted on the opposite surface of each rotating disk 102, and two winding rollers 107 and two sets of adjusting rollers 106 are arranged between the two brackets. Two drive motors 105 are located on the outer side of the rotating disk 102. The output end of each drive motor 105 is connected to the winding rollers 107 for winding the unwound plastic film. The plastic film can be PE film (polyethylene film), CPE film (chlorinated polyethylene film), PP film (polypropylene film), CPP film (cast polypropylene film), etc.

[0047] The receiving mechanism 200 includes two symmetrically arranged wall panels 201, which are connected by a fixed rod. Three grinding rollers 203 and a tension roller 202 are provided between the two wall panels 201. A movable receiving frame is provided at the upper end of the wall panel 201, which is used to push the receiving frame to a designated position, thereby improving the receiving speed and maintaining a shorter receiving head.

[0048] In this embodiment, the receiving rack includes two symmetrically arranged wall panels 206. Two pressure rollers 207 and a rotating roller 210 are provided between the two wall panels 206. The lower end of each of the two wall panels 206 is provided with a slide block 211, and the upper end of each of the two wall panels 206 is provided with a slide rail 205. The slide block 211 is slidably arranged on the slide rail 205. A drive motor 215 is installed on the outer side of the wall panel 201. The output end of the drive motor 215 is connected to a drive rod. The drive rod passes through the two wall panels 201, and drive gears 214 are provided on both sides of the drive rod. The lower end of the wall panel 206 is also provided with a rack plate 217, which meshes with the drive gears 214 for transmission.

[0049] The rotation of the drive motor 215 drives the drive rod and drive gear 214 to rotate, thereby driving the rack plate 217 to move, so that the entire receiving frame moves accordingly.

[0050] In this embodiment, a slide rail 212 is installed on the inner side of the second wall panel 206, and a slide block 213 is slidably disposed on the slide rail 212. The two ends of the pressure roller 207 are connected to the slide blocks 213 at both ends through fixing plates, and the pressure roller 207 is rotatably connected to the fixing plates. A cylinder 208 is provided on the inner side wall of the second wall panel 206. One end of the cylinder 208 is fixedly connected to the second wall panel 206, and the other end is connected to one end of the fixing plate. By extending and retracting the cylinder 208, the pressure roller 207 can be driven to move along the slide rail 212, thereby bringing the pressure roller 207 closer to the winding roller 107. The outer side of the pressure roller 207 is coated with elastic materials such as rubber to increase the success rate of material reception.

[0051] In this embodiment, a cutting blade 216 is provided between the two pressure rollers 207. A slide rail 219 is installed on the inner side of the second wall panel 206. A slide block 220 is slidably arranged on the slide rail 219. The two ends of the cutting blade 216 are fixedly connected to the slide blocks 220 on both sides. A cylinder 209 is provided on the inner side wall of the second wall panel 206. One end of the cylinder 209 is fixedly connected to the second wall panel 206, and the other end is connected to one side of the cutting blade 216.

[0052] By extending and retracting the cylinder 209, the cutting blade 216 is driven to move along the slide rail 219, thereby enabling the cutting blade 216 to complete the cutting action.

[0053] In this embodiment, the two ends of the tension roller 202 are connected to the inner wall of the wall panel 201 via the tension frame 204. The tension frame 204 is U-shaped, and the upper parts of both sides of the tension frame 204 are rotatably connected to the two wall panels 201 respectively. The two ends of the tension roller 202 are rotatably connected to the inner frame of the tension frame 204. The inner wall of the wall panel 201 is provided with a cylinder 218. One end of the cylinder 218 is rotatably connected to the wall panel 201, and its telescopic end is rotatably connected to the lower part of the tension frame 204.

[0054] In use, the tension roller 202 is moved away from or closer to the polishing roller 203 by the extension and retraction of cylinder 3 218, thereby adjusting the tension of the plastic film.

[0055] In this embodiment, a ring gear 103 is provided on the outer side of one of the rotating disks 102, and a drive motor 104 is installed on the support plate 101 near the ring gear 103. The output end of the drive motor 104 is provided with a gear, and the gear meshes with the ring gear 103 for transmission. The drive motor 104 drives the ring gear 103 to rotate, thereby driving the rotating disk 102 to rotate and switching the coiling station.

[0056] In this embodiment, two roll rollers 107 and two sets of adjusting rollers 106 are arranged in a cross shape and spaced apart; the adjusting rollers 106 are mounted on the inner support of the rotating disk 102 by a drive adjusting member 108.

[0057] In this embodiment, the drive adjustment component 108 includes a fixed frame 1081, an adjustment track 1082, and an adjustment cylinder 1083. The fixed frame 1081 is mounted on a bracket, and the adjustment track 1082 is fixedly mounted in the middle of the fixed frame 1081. Adjustment roller mounting seats 1084 are symmetrically provided at both ends of the adjustment track 1082. The two ends of the adjustment roller 106 are provided on the adjustment roller mounting seats 1084 on both sides. Two adjustment cylinders 1083 are provided on both sides of the adjustment track 1082. One end of the adjustment cylinder 1083 is rotatably mounted on the fixed frame 1081, and the other end is connected to the adjustment roller mounting seat 1084.

[0058] By extending and retracting two adjusting cylinders 1083, two adjusting roller mounting seats 1084 are driven to move closer or further apart, thereby clamping or releasing the plastic film.

[0059] Working principle:

[0060] During operation, the plastic film comes from the receiving mechanism 200, passing successively around the lower grinding roller 203, tension roller 202, middle grinding roller 203, and upper grinding roller 203, then around the rotating roller 210 and one of the pressure rollers 207 (when receiving material from the front, the plastic film passes around the lower end of the rotating roller 210, then around the upper end of the upper pressure roller 207, and finally winds onto the winding roller 107 via the adjusting roller 106; when receiving material from the reverse side, the plastic film passes around the upper end of the rotating roller 210, then around the lower end of the lower pressure roller 207, and finally winds onto the winding roller 107 via the adjusting roller 106).

[0061] The position of the receiving rack is adjusted according to the size of the plastic film roll. Specifically, the drive motor 215 rotates, driving the drive gear 214 to rotate, which in turn drives the rack plate 217 to move, thereby moving the receiving rack to the designated position. When changing rolls, the drive motor 104 starts, driving the rotating disk 102 to rotate, causing the full roll 107 to move to the right and the empty roll 107 to move to the left. When the empty roll 107 reaches the position of the pressure roller 207, the drive motor 104 stops rotating. At this time, the cylinder 208 extends, driving the pressure roller 207 to approach the empty roll 107, pressing the plastic film onto the empty roll 107. At the same time, the cylinder 209 extends, driving the cutter 216 to move to the right to cut the plastic film. The drive motor 105 drives the empty roll 107 to rotate, winding up the plastic film. This allows for material changing without stopping the machine.

[0062] During the winding process, the extension and retraction of cylinder 218 drives the oscillation of tension frame 204 to adjust the tension of plastic film when receiving material by receiving mechanism 200. At the same time, the extension and retraction of two adjusting cylinders 1083 can adjust the distance between two adjusting rollers 106, thereby achieving adaptive adjustment capability for different material properties according to the tension of different materials during winding.

[0063] This invention achieves non-stop material receiving and improves work efficiency by setting two sets of adjusting rollers 106 to work with two winding rollers 107 to alternately wind materials. By setting a movable receiving frame on the receiving mechanism 200, the receiving frame can be pushed to a designated position, which can increase the receiving speed and maintain a shorter receiving head. The receiving frame is equipped with two movable pressure rollers 207. By moving the pressure rollers 207, the unwinding and receiving device can receive materials without stopping the machine under different speeds and materials.

[0064] This invention uses two cylinders to instantly push out the pressure roller 207, while two other cylinders push out the cutter. This quickly cuts different materials, and can cut both sides. It solves the problem of resistance to the substrate during the material receiving process in the original mechanical structure, greatly improves the 100% success rate of material receiving, saves production time, and solves the waste caused by unstable material receiving.

[0065] The present invention provides a tension roller 202 on the receiving mechanism 200. In use, the tension roller 202 is moved away from or closer to the grinding roller 203 by the extension and retraction of the cylinder 218, thereby automatically adjusting the tension of the plastic film.

[0066] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0067] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A winding and receiving device, characterized in that: It includes a winding mechanism (100) and a receiving mechanism (200) disposed on one side of the winding mechanism (100). The winding mechanism (100) includes two symmetrically arranged support plates (101), which are connected by a fixed rod. A rotating disk (102) is rotatably provided in the middle of each of the two support plates (101). A bracket is installed on the opposite surface of each of the two rotating disks (102), and two winding rollers (107) and two sets of adjusting rollers (106) are provided between the two brackets. Two drive motors (105) are provided on the outer side of the rotating disks (102). The output end of the drive motors (105) is connected to the winding rollers (107) for winding the unwound plastic film. The receiving mechanism (200) includes two symmetrically arranged wall panels (201), which are connected by a fixed rod. Three grinding rollers (203) and a tension roller (202) are provided between the two wall panels (201). A movable receiving frame is provided at the upper end of the wall panel (201) for pushing the receiving frame to a designated position, which can improve the receiving speed and maintain a shorter receiving head.

2. The unwinding and receiving device according to claim 1, characterized in that, The receiving rack includes two symmetrically arranged wall panels (206), with two pressure rollers (207) and a rotating roller (210) between the two wall panels (206). The lower ends of the two wall panels (206) are provided with slide blocks (211), and the upper ends of the two wall panels (201) are provided with slide rails (205). The slide blocks (211) are slidably arranged on the slide rails (205). A drive motor (215) is installed on the outer side of the wall panel (201). The output end of the drive motor (215) is connected to a drive rod. The drive rod passes through the two wall panels (201), and drive gears (214) are provided on both sides of the drive rod. The lower end of the wall panel (206) is also provided with a rack plate (217), which meshes with the drive gears (214) for transmission.

3. The unwinding and receiving device according to claim 1, characterized in that, The inner side of the second wall panel (206) is equipped with a second slide rail (212), and a second slide block (213) is slidably arranged on the second slide rail (212). The two ends of the pressure roller (207) are connected to the slide blocks (213) at both ends through a fixing plate, and the pressure roller (207) is rotatably connected to the fixing plate. The inner side wall of the second wall panel (206) is provided with a first cylinder (208). One end of the first cylinder (208) is fixedly connected to the second wall panel (206), and the other end is connected to one end of the fixing plate. By extending and retracting the first cylinder (208), the pressure roller (207) can be driven to move along the direction of the second slide rail (212), thereby making the pressure roller (207) close to the winding roller (107).

4. The unwinding and receiving device according to claim 1, characterized in that, A cutting blade (216) is provided between the two pressure rollers (207). A slide rail (219) is installed on the inner side of the second wall panel (206). A slide block (220) is slidably arranged on the slide rail (219). The two ends of the cutting blade (216) are fixedly connected to the slide blocks (220) on both sides. A cylinder (209) is provided on the inner side wall of the second wall panel (206). One end of the cylinder (209) is fixedly connected to the second wall panel (206), and the other end is connected to one side of the cutting blade (216).

5. The unwinding and receiving device according to claim 1, characterized in that, The two ends of the tension roller (202) are connected to the inner wall of the first wall panel (201) via the tension frame (204). The tension frame (204) is U-shaped, and the upper parts of the two sides of the tension frame (204) are rotatably connected to the two first wall panels (201) respectively. The two ends of the tension roller (202) are rotatably connected to the inner frame of the tension frame (204). The inner wall of the first wall panel (201) is provided with a third cylinder (218). One end of the third cylinder (218) is rotatably connected to the first wall panel (201), and its telescopic end is rotatably connected to the lower part of the tension frame (204).

6. The unwinding and receiving device according to claim 1, characterized in that, One of the rotating disks (102) has a ring gear (103) on its outer side, and a drive motor (104) is installed on a support plate (101) near the ring gear (103). The output end of the drive motor (104) is equipped with a gear, which meshes with the ring gear (103) for transmission. The drive motor (104) drives the ring gear (103) to rotate, thereby driving the rotating disk (102) to rotate and switching the coil station.

7. The unwinding and receiving device according to claim 1, characterized in that, The two winding rollers (107) and the two sets of adjusting rollers (106) are arranged in a cross shape and spaced apart; the adjusting rollers (106) are mounted on the inner support of the rotating disk (102) by a drive adjusting member (108).

8. The unwinding and receiving device according to claim 1, characterized in that, The drive adjustment component (108) includes a fixed frame (1081), an adjustment track (1082), and an adjustment cylinder (1083). The fixed frame (1081) is mounted on a bracket. An adjustment track (1082) is fixedly mounted in the middle of the fixed frame (1081). Adjustment roller mounting seats (1084) are symmetrically provided at both ends of the adjustment track (1082). The two ends of the adjustment roller (106) are set on the adjustment roller mounting seats (1084) on both sides. Two adjustment cylinders (1083) are provided on both sides of the adjustment track (1082). One end of the adjustment cylinder (1083) is rotatably mounted on the fixed frame (1081), and the other end is connected to the adjustment roller mounting seat (1084).

Images