Winding equipment

Abstract

The utility model discloses a rolling device which comprises a machine frame, a turret mechanism, a cutting mechanism and a conveying mechanism, the turret mechanism, the cutting mechanism and the conveying mechanism are arranged on the machine frame, through cooperation of the conveying mechanism, the turret mechanism and the cutting mechanism, efficient roll changing and accurate butt joint in the rolling process are achieved, a second rolling part can be rapidly moved to a working position, and the rolling efficiency is improved. And through the synergistic effect of the pressing roller and the cutter, it is ensured that the coiled tape is stably connected to the second winding part. The automatic operation of the equipment reduces the labor intensity and the risk of manual misoperation, keeps the continuous operation of the production line, is suitable for large-scale continuous production, and ensures the consistency and stability of the product quality at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of lithium battery production, especially relates to a winding equipment. BACKGROUND

[0002] The winding equipment is a mechanical device widely used in lithium battery production, and the current manual winding equipment needs to be frequently stopped for operation, which not only is low in production efficiency, but also is high in labor intensity and high in skill requirement for the operator. UTILITY MODEL CONTENTS

[0003] In order to overcome the insufficient of prior art, the utility model provides a winding equipment without shutdown.

[0004] The utility model solves the technical scheme that its technical problem adopts:

[0005] A winding equipment, comprising:

[0006] A rack and a conveying mechanism, a cutting mechanism and a turret mechanism arranged on the rack;

[0007] The conveying mechanism is used for inputting a winding tape, the turret mechanism is rotatable relative to the rack, has a first winding part and a second winding part, the first winding part and the second winding part are used for winding the input winding tape, and the first winding part and the second winding part are each provided with a bonding part;

[0008] The cutting mechanism comprises a driving part, a compression roller and a cutter;

[0009] When the winding is changed, the turret mechanism rotates, the second winding part is moved to between the first winding part and the conveying mechanism, the driving part drives the fourth rotary arm and the cutter to move, the compression roller moves the winding tape to the direction of the second winding part, so that the winding tape is in contact and bonded with the bonding part of the second winding part, and the cutter is used for cutting the winding tape connected between the first winding part and the second winding part.

[0010] Further, the turret mechanism comprises a first rotary arm and a second rotary arm cross-fixedly arranged, two ends of the first rotary arm are provided with the first winding part and the second winding part, and two ends of the second rotary arm are provided with a first passing roller and a second passing roller; when the turret mechanism rotates, the first passing roller and the second passing roller are respectively used for adjusting the adjustment path direction of the winding tape.

[0011] Further, the first rotary arm and the second rotary arm are perpendicular to each other.

[0012] Further, the second rotary arm is provided with a winding diameter detector for detecting the winding diameter of the winding tape on the first winding part and the second winding part. Further, the second rotary arm is provided with a winding diameter detector for detecting the winding diameter of the winding tape on the first winding part and the second winding part.

[0013] Furthermore, the cutting mechanism also includes a third rotating arm and a fourth rotating arm; the driving unit includes a first driving member and a second driving member; one end of the third rotating arm is movably connected to the frame and driven by the first driving member, and the other end is connected to a pressure roller. The first driving member is used to drive the third rotating arm to rotate, so that the pressure roller presses the tape into contact with the adhesive part of the second winding part and adheres it; one end of the fourth rotating arm is movably connected to the frame and driven by the second driving member, and the other end is connected to a cutter. The second driving member is used to drive the fourth rotating arm to rotate, so that the cutter approaches the tape to cut the tape.

[0014] Furthermore, the third and fourth rotary arms share a common connection point on the frame and can rotate around this connection point simultaneously; the first drive member is connected to the third rotary arm near the connection point; the second drive member is connected to the fourth rotary arm at the middle of the fourth rotary arm.

[0015] Furthermore, the pressure roller comprises, from the outside in, a sponge layer, a profile layer, and a shaft head.

[0016] Furthermore, the sponge layer is made of foamed EPDM rubber with a Shore hardness of 20-35°.

[0017] Furthermore, the adhesive material includes a paper substrate and acrylic adhesive.

[0018] Furthermore, the conveying mechanism also includes a tension roller and a swing roller; the tension roller is used to detect the tension of the belt, and the swing roller is used to adjust the tension of the belt.

[0019] The beneficial effects of this utility model are:

[0020] This utility model discloses a winding device that, through the cooperation of a conveying mechanism, a turret mechanism, and a cutting mechanism, achieves efficient roll changing and precise docking during the winding process. It can quickly move the second winding section to the working position and, through the synergistic action of pressure rollers and cutters, ensures stable connection of the roll. The automated operation of the equipment reduces labor intensity and the risk of human error, maintains continuous operation of the production line, is suitable for large-scale continuous production, and ensures the consistency and stability of product quality. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the winding structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the winding structure of this utility model - 1;

[0024] Figure 3 This is a schematic diagram of the winding structure of this utility model - 2;

[0025] Figure 4 This is a schematic diagram of the structure of the pressure roller of this utility model.

[0026] 100. Rack;

[0027] 200. Turret mechanism; 210. First rotating arm; 211. First take-up section; 212. Second take-up section; 220. Second rotating arm; 221. First guide roller; 222. Second guide roller; 223. Roll diameter detector;

[0028] 300. Cutting mechanism; 310. Drive unit; 311. First drive component; 312. Second drive component; 320. Third rotating arm; 330. Pressure roller; 331. Sponge layer; 332. Profile layer; 333. Shaft head; 330. Fourth rotating arm; 341. Cutting blade;

[0029] 400. Conveying mechanism; 410. Tension roller; 420. Swing roller;

[0030] 500, rolls of tape. Detailed Implementation

[0031] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0032] Reference Figure 1 A winding device includes a frame 100 and a turret mechanism 200, a cutting mechanism 300 and a conveying mechanism 400 disposed on the frame 100.

[0033] The conveying mechanism 400 is used to input the tape 500. The turret mechanism 200 is rotatable relative to the frame 100 and has a first winding section 211 and a second winding section 212. The first winding section 211 and the second winding section 212 are used to wind up the input tape 500. Both the first winding section 211 and the second winding section 212 are provided with adhesive portions. The cutting mechanism 300 includes a drive section 310, a pressure roller 330, and a cutter 341. When changing tapes... The turret mechanism 200 rotates, moving the second take-up section 212 between the first take-up section 211 and the conveying mechanism 400. The drive unit 310 drives the fourth rotating arm 330 and the cutter 341 to move. The pressure roller 330 moves the tape 500 toward the second take-up section 212, so that the tape 500 contacts and adheres to the adhesive part of the second take-up section 212. The cutter 341 is used to cut the tape 500 connecting the first take-up section and the second take-up section.

[0034] Understandably, when the first winding section 211 has finished winding or is about to finish winding, the first winding section 211 can be switched to the second winding section 212, and the second winding section 212 can continue to wind the tape 500. (Refer to...) Figure 2 The rotation of the turret mechanism 200 immediately switches the positions of the first winding section 211 and the second winding section 212, causing the second winding section 212 to move closer to the conveyor mechanism 400 to continue winding. At this time, the pressure roller 330 presses the tape 500 against the adhesive part of the second winding section 212, causing them to contact and adhere. Simultaneously, the cutter 341 cuts the tape 500 between the first winding section 211 and the second winding section 212, causing the first winding section 211 to stop winding. Subsequently, with the cooperation of the conveyor mechanism 400, and because the tape 500 has already adhered to the adhesive part of the second winding section 212, the tape 500 will continue to wind as the second winding section 212 rotates, thereby achieving continuous winding.

[0035] In some embodiments, refer to Figure 1 The turret mechanism 200 includes a first rotating arm 210 and a second rotating arm 220 that are fixedly arranged in a cross configuration. The first rotating arm 210 has a first winding section 211 and a second winding section 212 at both ends, and the second rotating arm 220 has a first guide roller 221 and a second guide roller 222 at both ends. When the turret mechanism 200 rotates, the first guide roller 221 and the second guide roller 222 are used to adjust the conveying direction of the belt 500. (Refer to...) Figure 1 During winding, the first winding section 211 is located on the side closest to the conveyor mechanism 400. For subsequent winding changes, refer to... Figure 2The first rotating arm 210 rotates to swap the positions of the first take-up section 211 and the second take-up section 212, moving the second take-up section 212 closer to the conveyor mechanism 400. At this time, the first guide roller 221 and the second guide roller 222 on the second rotating arm 220 are used to adjust the adjustment path direction of the belt 500, so that the belt 500 can be smoothly switched and conveyed during the roll change process, preventing the belt 500 from being misaligned or not conveyed smoothly during the roll change process.

[0036] Furthermore, refer to Figure 1 The first guide roller 221 and the second guide roller 222 are provided in twos. The two guide rollers can improve the positioning accuracy of the conveyor belt 500 and ensure that the conveyor belt 500 maintains a proper path during the conveying process without deviating or slipping.

[0037] In some embodiments, the first rotary arm 210 and the second rotary arm 220 are perpendicular to each other. By arranging them in a cross and perpendicular manner, the equipment space can be fully utilized, the layout of the winding section and the overpass roller can be made more compact, the equipment footprint can be reduced, and a more flexible arrangement can be provided for the transport and rewinding of the roll 500.

[0038] In some embodiments, refer to Figure 1 The second rotary arm 220 is equipped with a roll diameter detector 223 for detecting the roll diameter of the tape 500 on the first take-up section 211 or the second take-up section 212. By monitoring the roll diameter of the tape 500 by the roll diameter detector 223, the winding amount of the tape 500 can be accurately determined, thereby optimizing the timing of roll changes and avoiding production interruptions caused by the depletion of the tape 500. In addition, the roll diameter detector 223 can provide real-time data, allowing the control system to automatically adjust the winding speed and tension to ensure the stability and uniformity of the winding process. Furthermore, it can reduce manual intervention and improve the automation level and overall efficiency of the production line. Specifically, there are two roll diameter detectors 223, located on the second rotary arm 220 along both sides of the first rotary arm 210, which can be used to detect the roll diameter of the tape 500 on the first take-up section 211 or the second take-up section 212, respectively.

[0039] When the roll diameter detector 223 detects that the roll diameter of the tape 500 on the first take-up section 211 is greater than a set value, the turret mechanism 200 starts to rotate to the ready state. In the ready state, the second rotating arm 220 is slightly tilted away from the conveyor mechanism 400. The tilted second rotating arm 220 provides a better cutting point for the cutter 341 relative to the tape 500 to be cut, thus cutting the tape 500 more effectively. An adhesive part, which is a roll-changing adhesive tape, is provided on the second take-up section 212. The roll-changing adhesive tape allows the tape 500 to adhere to the second take-up section 212.

[0040] In some embodiments, refer to Figure 1The cutting mechanism 300 further includes a third rotating arm 320 and a fourth rotating arm 330; the driving unit 310 includes a first driving member 311 and a second driving member 312; one end of the third rotating arm 320 is movably connected to the frame 100 and drivenly connected to the first driving member 311, and the other end is connected to a pressure roller 330. The first driving member 311 is used to drive the third rotating arm 320 to rotate, so that the pressure roller 330 presses the roll 500 into contact with and adheres to the adhesive part of the second winding part 212; one end of the fourth rotating arm 330 is movably connected to the frame 100 and drivenly connected to the second driving member 312, and the other end is connected to a cutter 341. The second driving member 312 is used to drive the fourth rotating arm 330 to rotate, so that the cutter 341 approaches the roll 500 to cut the roll 500. Understandably, the first drive unit 311 drives the pressure roller 330 closer to the winding section, and the second drive unit 312 controls the cutter 341 to approach the winding belt 500. By controlling the pressure roller 330 and the cutter 341 respectively, the cooperation between the pressure roller 330 and the cutter 341 is made more flexible to adapt to more winding requirements.

[0041] Furthermore, the cutting mechanism 300 is equipped with a positioning sensor for positioning the new roll. It should be noted that both the first winding section 211 and the second winding section 212 of this invention include a rotating shaft and a roll. The rotating shaft is used to fix the roll and can also be used to drive the roll to rotate. The positioning sensor can be used to detect the adhesive portion, i.e., the tape changer, located on the roll of the second winding section 212.

[0042] During the winding process, the second winding section 212 accelerates to the same linear speed as the roll 500 of the first winding section 211. The position of the bonding section is detected by a positioning sensor, and then the pressure roller 330 bonds the roll 500 to the bonding section. Compared to conventional automatic roll-changing and winding equipment that can only complete roll-changing and splicing at a mechanical speed of 200 meters per minute, the structural layout of this invention enables roll-changing and splicing at high mechanical speeds (200-400 meters per minute). This not only significantly improves the production efficiency of intermediate processes but also eliminates the need for deceleration or machine stoppage during the entire roll-changing process, thereby significantly improving the continuity and overall efficiency of the production line.

[0043] Furthermore, the third rotating arm 320 and the fourth rotating arm 330 share a common connection point on the frame 100 and can rotate simultaneously around this connection point; the first driving member 311 is connected to the third rotating arm 320 near the connection point; the second driving member 312 is connected to the fourth rotating arm 330 at its center, wherein both the first driving member 311 and the second driving member 312 are cylinders. It can be understood that the first driving member 311 has a shorter lever arm for driving the third rotating arm 320, allowing the first driving member 311 to achieve a large rotation of the third rotating arm 320 with a short stroke, resulting in a faster response speed for the pressure roller 330. (Refer to...) Figures 1-3 In some specific embodiments, the cutter 341 is rotatably mounted on the fourth rotating arm 330. A fourth driving member pushes the cutter 341 to a predetermined position. When cutting is required, the tape 500 is positioned on the rotation path of the cutter 341's blade. The cutter 341 rotates, easily cutting the tape 500. By incorporating the third and fourth rotating arms 330, the rotating arm structure makes the layout of the cutting mechanism 300 more compact, saving space. Furthermore, the rotational movement of the rotating arms can cover a wider operating range, enhancing the system's flexibility.

[0044] In some embodiments, the pressure roller 330 comprises, from the outside in, a sponge layer 331, a profile layer 332, and a shaft head 333.

[0045] Traditional pressure rollers (330) have high hardness. When the speed increases, a conventional 330 pressure roller will bounce back after pressing down, resulting in a shorter contact time with the new roll material and insufficient adhesive adhesion. Therefore, referring to... Figure 4 A sponge layer 331 with lower hardness is selected. Specifically, the sponge layer 331 is made of foamed EPDM rubber with a Shore hardness of 20-35°. The sponge layer is relatively soft after being pressed down by the roller and has a large deformation capacity, which allows the substrate to be fully pressed onto the new roll of tape, thereby ensuring a sufficiently long bonding time, a stronger bond, and significantly improving the reliability and efficiency of the roll changing process.

[0046] In some embodiments, a special roll-changing tape is used for the adhesive portion during roll changing. Specifically, the roll-changing tape is made of a paper substrate and acrylic adhesive. This special adhesive allows for strong bonding even under high-speed rotation.

[0047] In some embodiments, refer to Figure 1The conveying mechanism 400 further includes a tension roller 410 and a swing roller 420; the tension roller 410 is used to detect the tension of the belt 500, and the swing roller 420 is used to adjust the tension of the belt 500. The tension roller 410 can monitor the tension of the belt 500 in real time, and together with the swing roller 420, it can quickly and effectively adjust the tension of the belt 500 by adjusting the path length of the belt 500, ensuring that the belt 500 maintains a constant and appropriate tension during the conveying process, thereby avoiding the problem of unstable conveying caused by the belt 500 being too loose or too tight.

[0048] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A winding device, characterized in that, include: The frame and the conveying mechanism, cutting mechanism and turret mechanism mounted on the frame; The conveying mechanism is used to input the tape roll, and the turret mechanism is rotatable relative to the frame. It has a first winding section and a second winding section. The first winding section and the second winding section are used to wind up the input tape roll. Both the first winding section and the second winding section are provided with an adhesive section. The cutting mechanism includes a drive unit, a pressure roller, and a cutter. When changing rolls, the turret mechanism rotates, moving the second take-up section between the first take-up section and the conveying mechanism. The drive unit drives the fourth rotating arm and the cutter to move. The pressure roller moves the roll towards the second take-up section, so that the roll contacts and adheres to the adhesive part of the second take-up section. The cutter is used to cut the roll connecting the first take-up section and the second take-up section.

2. The winding device according to claim 1, characterized in that, The turret mechanism includes a first rotating arm and a second rotating arm that are fixedly arranged in a cross configuration; the first rotating arm has a first winding section and a second winding section at both ends, and the second rotating arm has a first guide roller and a second guide roller at both ends; when the turret mechanism rotates, the first guide roller and the second guide roller are used to adjust the adjustment path direction of the winding belt.

3. The winding device according to claim 2, characterized in that, The first and second spiral arms are perpendicular to each other.

4. The winding device according to claim 2, characterized in that, The second rotary arm is equipped with a roll diameter detector for detecting the roll diameter of the tape on the first winding section and the second winding section.

5. The winding device according to claim 1, characterized in that, The cutting mechanism further includes a third rotating arm and a fourth rotating arm; the driving part includes a first driving member and a second driving member; one end of the third rotating arm is movably connected to the frame and driven by the first driving member, and the other end is connected to a pressure roller; the first driving member is used to drive the third rotating arm to rotate, so that the pressure roller presses the tape into contact and adheres to the adhesive part of the second winding part. One end of the fourth rotary arm is movably connected to the frame and driven by the second drive member, and the other end is connected to a cutter. The second drive member is used to drive the fourth rotary arm to rotate, so that the cutter approaches the tape roll to cut the tape roll.

6. The winding device according to claim 5, characterized in that, The third and fourth rotating arms share a common connection point on the frame and can rotate around this connection point simultaneously; the first drive member is connected to the third rotating arm near the connection point; the second drive member is connected to the fourth rotating arm at the middle of the fourth rotating arm.

7. The winding device according to claim 1, characterized in that, The pressure roller comprises, from the outside in, a sponge layer, a profile layer, and a shaft head.

8. The winding device according to claim 7, characterized in that, The sponge layer is made of foamed EPDM rubber with a Shore hardness of 20-35°.

9. The winding device according to claim 1, characterized in that, The adhesive components are made of paper substrate and acrylic adhesive.

10. The winding device according to claim 1, characterized in that, The conveying mechanism further includes a tension roller and a swing roller; the tension roller is used to detect the tension of the belt, and the swing roller is used to adjust the tension of the belt.

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