Arc-shaped battery winding machine

Abstract

The invention discloses an arc-shaped battery winding machine, and relates to the related technical field of arc-shaped battery winding, the arc-shaped battery winding machine comprises a cabinet body, the outer wall of one side of the cabinet body is provided with two pole piece bins which are distributed in parallel, one side of each pole piece bin is provided with a pole piece guide plate, and the two pole piece guide plates are symmetrically distributed; and a winding assembly is arranged on one side of the pole piece guide plate. According to the arc-shaped battery winding machine, a pole piece is manually taken from a pole piece bin and put into a guide groove of a pole piece guide plate, a negative pole piece is manually pushed into a winding assembly, a pedal is manually treaded down to complete total winding, the winding assembly moves to a rubberizing station, and the rubberizing mechanism is ended for rubberizing processing; the film pressing assembly and the diaphragm clamping assembly are matched with each other to complete rubberizing and retreating of a winding needle body, the winding needle body is moved to a needle outlet station to complete pre-winding of the diaphragm body, the discharging clamp retreats to complete discharging, a material receiving air cylinder in the battery cell receiving assembly stretches out, the discharging clamp is opened, a battery cell is placed in a material receiving box of the battery cell receiving assembly, and circulating machining is conducted.

Description

Technical Field

[0001] The present invention relates to the technical field related to arc-shaped battery winding, and in particular to an arc-shaped battery winding machine. Background Art

[0002] Lithium-ion battery is a rechargeable battery that uses lithium ions as charge carriers and the electrolyte is an organic solvent or polymer gel. Lithium-ion batteries have the advantages of high energy density, high voltage, long life and low self-discharge rate. They are widely used in mobile devices, electric vehicles, energy storage systems and other fields. With the continuous application of new technologies and new materials, lithium-ion batteries will be more widely used, and their role in the energy field will become more and more important. Lithium ions have been widely used in portable electronic products for a long time due to their high energy density, high working voltage, long cycle life, environmental protection and safety. With the continuous development of the electronics industry, portable consumer electronic products have more and more functions and are becoming more and more complete and powerful, especially the emergence of smart phones, tablet computers, and wearable devices. They are powerful, have many components, have a large demand for electricity, and are frequently charged and discharged. The requirements for the energy density, cycle life, and safety performance of the randomly matched batteries are getting higher and higher. Mobile devices and wearable devices have many types of lithium-ion batteries. Abnormal feeding of pole pieces will affect the quality of the battery cells. Winding is an indispensable and particularly important process in the production and manufacturing process of lithium-ion power batteries. The winding tension control accuracy, winding speed, and yield rate directly determine the battery performance.

[0003] In the prior art, the winding and forming of battery cells is a very important production process in the battery production process. This process generally uses a battery winding machine to achieve the following battery cell winding and forming process: the positive electrode unwinding mechanism for placing the positive electrode coil, the negative electrode unwinding mechanism for placing the negative electrode coil, and the diaphragm unwinding mechanism for placing the diaphragm coil are wound together with the positive and negative electrodes and the diaphragm coil tapes to form a battery cell, and then the battery cell coil is fixed with adhesive tape at the end of the battery cell, and then the battery cell after winding and gluing is removed and finally inspected. Battery winding technology generally includes manual winding, semi-automatic equipment, and fully automated equipment winding. Due to the high production efficiency and stable product quality of fully automated equipment, it is widely used in large-scale battery production.

[0004] However, in the prior art, during the production process of arc-shaped batteries, the battery winding may cause the core to be pulled out due to the ultra-thin core being unwound, which is inconvenient to solve. Moreover, when the battery cell is unloaded, the battery cell product has a small number of winding turns and the battery cell thickness is too thin, which may easily cause the core to be pulled out, affecting the stability of unloading. During the winding process of the arc-shaped battery, manual winding is time-consuming and labor-intensive, and the production efficiency is low, which affects the processing benefits. Therefore, there is an urgent need for a arc-shaped battery winding machine. Summary of the invention

[0005] The purpose of the present invention is to provide an arc-shaped battery winding machine to solve the problem that in the arc-shaped battery production process mentioned in the above background technology, ultra-thin core unloading and core pulling may occur during battery winding, which is inconvenient to solve. In addition, when the battery cell is unloaded, the battery cell product has a small number of winding turns and the battery cell thickness is too thin, which is also easy to cause core pulling, affecting the stability of unloading. In the arc-shaped battery winding process, manual winding is time-consuming and labor-intensive, and the production efficiency is low, affecting the processing efficiency.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an arc-shaped battery winding machine, comprising a cabinet, wherein one side outer wall of the cabinet is provided with two parallel-distributed pole piece bins, one side of the pole piece bin is provided with a pole piece guide plate, and the two pole piece guide plates are symmetrically distributed, one side of the pole piece guide plate is provided with a winding assembly, a diaphragm unwinding mechanism is provided below the pole piece bin, a tension swing-rod type floating roller is provided on one side of the diaphragm unwinding mechanism, a diaphragm passing roller is provided above the tension swing-rod type floating roller, and the A diaphragm body is arranged between the tension rocker-type floating roller and the diaphragm passing roller, a diaphragm pressing assembly is arranged on one side of the diaphragm passing roller, a diaphragm clamping assembly is arranged on one side of the diaphragm pressing assembly, a tail gluing mechanism is arranged below one side of the diaphragm clamping assembly, a tape preparation mechanism is arranged on one side of the tail gluing mechanism, a synchronization mechanism is arranged on the top of the tape preparation mechanism, and a winding assembly is arranged inside the synchronization mechanism, a material discharge clamp assembly is arranged above the synchronization mechanism, and a battery cell connection assembly is arranged below the material discharge clamp assembly.

[0007] Preferably, the winding assembly includes a winding needle body, and the two winding needle bodies are symmetrically distributed, and a cover plate is provided on the top of the winding needle body, and a first slider is provided at the bottom of one end of one of the winding needle bodies, and a second slider is provided at the bottom of the other end of the winding needle body, and a winding needle connecting head is provided at the bottom of the first slider and the second slider, and a first cam follower is provided at the bottom of the cover plate, and a second cam follower is also provided at the bottom of the cover plate, and the first cam follower and the second cam follower are symmetrically distributed, the first slider is slidably connected to the first cam follower by setting a slide groove, and the second slider is slidably connected to the second cam follower by setting a slide groove, and ball guide pillars are respectively provided on the first cam follower and the second cam follower, and ball guide sleeves are provided on the outside of the ball guide pillars.

[0008] Preferably, symmetrically distributed pressure plates are respectively provided at both ends of the ball guide column, the inner wall of the pressure plate is connected to one end of a winding needle spring, the other end of the winding needle spring is connected to an outer wall of one end of a winding needle body, an opening and closing needle head is provided on one side of the cover plate, the opening and closing needle head is connected and fixed to the winding needle body, a winding needle retracting nozzle is provided at the other end of the two winding needle bodies, and two symmetrically distributed shape-changing winding needles are provided on one side of the winding needle retracting nozzle, and one end of the shape-changing winding needle is connected and fixed to the other end of the winding needle body.

[0009] Preferably, the two diaphragm pressing assemblies are symmetrically distributed, and the diaphragm pressing assembly includes a first cylinder seat, a film pressing cylinder is arranged on one side of the first cylinder seat, and the film pressing cylinder is connected and fixed to the first cylinder seat by setting a first bearing, and the inner wall of the first cylinder seat is slidably connected with two symmetrically distributed first guide rods, and a film pressing seat is arranged at the bottom end of the first guide rod, and a film pressing roller is rotatably connected to the bottom inner wall of the film pressing seat.

[0010] Preferably, the two diaphragm clamping assemblies are symmetrically distributed, and the diaphragm clamping assembly includes a second cylinder seat, a diaphragm clamping cylinder is arranged on one side of the second cylinder seat, and the diaphragm clamping cylinder is connected and fixed to the second cylinder seat by arranging a second bearing, and the inner wall of the second cylinder seat is slidably connected with two symmetrically distributed second guide rods, and a diaphragm clamping seat is arranged at the bottom end of the second guide rod.

[0011] Preferably, the blanking clamp assembly includes a blanking clamp base, a blanking clamp cylinder is provided on the top inner wall of the blanking clamp base, third bearings are provided on both sides of the blanking clamp cylinder, a third guide rod is slidably connected to the inner wall of the third bearing, the third guide rod is connected and fixed to the blanking clamp base by setting the third bearing, a connecting plate is provided at the bottom end of the third guide rod, and a pneumatic finger is provided at the bottom of the connecting plate.

[0012] Preferably, the battery cell connecting assembly includes a material receiving box, a top side of the material receiving box is connected to a third slider, a material receiving box base is provided on one side of the third slider, and the material receiving box base is connected to an outer wall of one side of a cabinet, an inner wall of the material receiving box base is provided with a guide rail compatible with the third slider, the third slider is slidably connected to the outside of the guide rail, a third cylinder seat is provided on one side of the inner wall of the material receiving box base, a material receiving cylinder is provided on the inner wall of the third cylinder seat, and one end of the material receiving cylinder is connected to the top of the third slider.

[0013] Preferably, a film clamping knife is arranged at the bottom of the film clamping connection seat located at the top, and a film clamping seat matched with the film clamping knife is arranged at the top of the film clamping connection seat located at the bottom.

[0014] Preferably, a limiting slider is arranged outside the first guide rod.

[0015] Preferably, a connecting seat is provided on the outside of one end of the film pressing cylinder, and the connecting seat is connected to an outer wall of one side of the cabinet.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The arc-shaped battery winding machine manually takes the pole piece from the pole piece bin and puts it into the guide groove of the pole piece guide plate, manually pushes the negative pole piece into the winding assembly, steps on the pedal to complete the negative pre-rolling, manually pushes the positive pole piece into the winding assembly, steps on the pedal to complete the positive pre-rolling, and manually steps on the pedal to complete the total roll, moves to the gluing station through the winding assembly, and the final gluing mechanism performs the gluing process. The first cylinder seat is convenient for fixing the film pressing cylinder through the first bearing, and the film pressing cylinder drives the two connected film pressing seats to lift and contact. The first guide rod is convenient for improving the lifting stability. The film pressing seat is convenient for pressing the diaphragm body through the film pressing roller. The limit slider is convenient for controlling the film pressing force. The second cylinder seat is convenient for fixing the film clamping cylinder through the second bearing. The film clamping cylinder drives the two film clamping connecting seats to lift and contact. The second guide rod is convenient for improving the lifting stability. The film clamping connecting seat drives the film clamping knife to contact the film clamping seat to facilitate cutting of the diaphragm body. The cylinder of the final gluing mechanism extends out to complete the gluing.

[0018] 2. The arc-shaped battery winding machine has the opening and closing needle ejector. When the winding needle body is inserted into the winding needle retracting nozzle, the winding needle body is in an outward expansion state, the opening and closing needle ejector is retracted, the winding needle body is retracted, the outward expansion state of the winding needle body is the winding state, and the retracted state is the unloading state. When the winding needle body is retracted, the empty space between the two winding needle bodies is the avoidance space of the unloading clamp. The retraction of the winding needle and the clamping unloading can solve the problem of unloading and pulling the core of the ultra-thin winding core. When the winding needle body is in the retracted state, the unloading clamp cylinder extends, and the battery is taken by the pneumatic finger clamp. The core, when the unloading clamp cylinder retreats, the receiving cylinder extends out, and the pneumatic fingers open to place the battery cell in the receiving box for receiving. When the receiving cylinder retreats, the receiving operation can be completed. The new material discharge method is dedicated to solving the core pulling problem caused by the small number of winding turns of the battery cell products and the thin thickness of the battery cell. It is convenient for stable material receiving and helps to improve the processing effect. The receiving cylinder drives the third slider to move on the guide rail, which makes it convenient to drive the receiving box to move, so as to facilitate the receiving of the battery cell and repeat the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of an arc-shaped battery winding machine in one embodiment of the present invention;

[0020] Figure 2 It is a partial three-dimensional structural schematic diagram of an arc-shaped battery winding machine in one embodiment of the present invention;

[0021] Figure 3It is a partial three-dimensional structural schematic diagram of an arc-shaped battery winding machine in one embodiment of the present invention;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of a tape preparation mechanism of a curved battery winding machine in one embodiment of the present invention;

[0023] Figure 5 It is a partial three-dimensional structural schematic diagram of an arc-shaped battery winding machine in one embodiment of the present invention;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of a winding assembly of a curved battery winding machine according to one embodiment of the present invention;

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of a blanking clamp assembly and a battery cell connection assembly of a curved battery winding machine in one embodiment of the present invention;

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of a diaphragm pressing assembly of a curved battery winding machine in one embodiment of the present invention;

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of a diaphragm clamping assembly of a curved battery winding machine in one embodiment of the present invention;

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of a finishing gluing mechanism of an arc-shaped battery winding machine in one embodiment of the present invention.

[0029] In the figure: 1. Cabinet; 2. Pole piece silo; 3. Pole piece guide plate;

[0030] 4. Winding assembly; 401. Winding needle body; 402. Cover plate; 403. First slider; 404. Winding needle connector; 405. First cam follower; 406. Second cam follower; 407. Ball guide post; 408. Ball guide sleeve; 409. Winding needle spring; 410. Opening and closing needle head; 411. Winding needle retracting nozzle; 412. Pressing plate; 413. Second slider; 414. Changing winding needle;

[0031] 5. Diaphragm unwinding mechanism; 6. Diaphragm body; 7. Tension swing rod type floating roller; 8. Diaphragm passing roller;

[0032] 9. Diaphragm pressing assembly; 901. First cylinder seat; 902. Film pressing cylinder; 903. First bearing; 904. First guide rod; 905. Limiting slider; 906. Film pressing seat; 907. Film pressing roller; 908. Connecting seat;

[0033] 10. Diaphragm clamping assembly; 101. Second cylinder seat; 102. Diaphragm clamping cylinder; 103. Second bearing; 104. Second guide rod; 105. Diaphragm clamping connection seat; 106. Diaphragm clamping knife; 107. Diaphragm clamping seat;

[0034] 11. Finishing gluing mechanism; 12. Adhesive tape preparation mechanism; 13. Synchronous mechanism;

[0035] 14. blanking clamp assembly; 141. blanking clamp base; 142. blanking clamp cylinder; 143. third bearing; 144. third guide rod; 145. connecting plate; 146. pneumatic finger;

[0036] 15. Connect the battery cell assembly; 151. Connect the material box; 152. The third slider; 153. Connect the material box base; 154. Guide rail; 155. The third cylinder seat; 156. Connect the material cylinder. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-10 The present invention provides a technical solution: an arc-shaped battery winding machine, comprising a cabinet 1, an outer wall of one side of the cabinet 1 is provided with two parallel-distributed pole piece bins 2, a pole piece guide plate 3 is provided on one side of the pole piece bin 2, and the two pole piece guide plates 3 are symmetrically distributed, a winding assembly 4 is provided on one side of the pole piece guide plate 3, a diaphragm unwinding mechanism 5 is provided below the pole piece bin 2, a tension swing-rod type floating roller 7 is provided on one side of the diaphragm unwinding mechanism 5, a diaphragm passing roller 8 is provided above the tension swing-rod type floating roller 7, and the tension swing-rod type floating roller 7 and the diaphragm passing roller 8 are provided above the tension swing-rod type floating roller 7. A diaphragm body 6 is arranged between the film rollers 8, a diaphragm pressing assembly 9 is arranged on one side of the diaphragm roller 8, a diaphragm clamping assembly 10 is arranged on one side of the diaphragm pressing assembly 9, a finishing gluing mechanism 11 is arranged below one side of the diaphragm clamping assembly 10, a tape preparation mechanism 12 is arranged on one side of the finishing gluing mechanism 11, a synchronization mechanism 13 is arranged on the top of the tape preparation mechanism 12, and a winding assembly 4 is arranged inside the synchronization mechanism 13, a material discharge clamp assembly 14 is arranged above the synchronization mechanism 13, and a battery cell connection assembly 15 is arranged below the material discharge clamp assembly 14.

[0039] Specifically, the electrode sheet is manually taken from the electrode sheet bin 2 and placed in the guide groove of the electrode sheet guide plate 3, the negative electrode sheet is manually pushed into the winding assembly 4, and the pedal is stepped on to complete the negative electrode pre-winding, the positive electrode sheet is manually pushed into the winding assembly 4, and the pedal is stepped on to complete the positive electrode pre-winding, and the total winding is completed by manually stepping on the pedal, and the winding assembly 4 is moved to the gluing station, and the end gluing mechanism 11 performs the gluing process, and the film pressing assembly and the diaphragm clamping assembly 10 cooperate with each other, and the cylinder of the end gluing mechanism 11 extends to clamp and cut the diaphragm body 6, After the gluing is completed, the winding needle body 401 inside the winding assembly 4 is rotated to the unloading angle, the winding needle body 401 is retracted, the two winding needle bodies 401 are in a retracted state, the unloading clamp cylinder 142 inside the unloading clamp assembly 14 is extended, the unloading clamp clamps the battery cell, the winding needle body 401 is retracted, and moved to the needle outlet station to complete the pre-winding of the diaphragm body 6, the unloading clamp is retracted to complete the unloading, the receiving cylinder 156 inside the battery cell assembly 15 is extended, the unloading clamp is opened to place the battery cell in the receiving box 151 of the battery cell assembly 15, and the processing is repeated in a cycle.

[0040] In order to facilitate those skilled in the art to fully understand the specific structure and principle of the winding assembly 4, the winding assembly 4 is further described. In this embodiment, the winding assembly 4 includes a winding needle body 401, and the two winding needle bodies 401 are symmetrically distributed. A cover plate 402 is provided on the top of the winding needle body 401, and a first slider 403 is provided at the bottom of one end of one winding needle body 401, and a second slider 413 is provided at the bottom of the other end of the winding needle body 401. A winding needle connector 404 is provided at the bottom of the first slider 403 and the second slider 413, and a first cam follower 405 is provided at the bottom of the cover plate 402, and a second cam follower 406 is also provided at the bottom of the cover plate 402, and the first cam follower 405 and the second cam follower 406 are symmetrically distributed, and the first slider 403 is slidably connected to the first cam follower 405 by setting a slide groove, and the second slider 413 is connected to the second cam follower by setting a slide groove. The first cam follower 405 and the second cam follower 406 are slidably connected, and a ball guide column 407 is respectively arranged on the top of the first cam follower 405 and the second cam follower 406, and a ball guide sleeve 408 is arranged on the outside of the ball guide column 407, and symmetrically distributed pressure plates 412 are respectively arranged at both ends of the ball guide column 407, and the inner wall of the pressure plate 412 is connected to one end of the winding needle spring 409, and the other end of the winding needle spring 409 is connected to the outer wall of one end of the winding needle body 401, and an opening and closing needle head 410 is arranged on one side of the cover plate 402, and the opening and closing needle head 410 is connected and fixed to the winding needle body 401, and a winding needle retracting nozzle 411 is arranged on the other end of the two winding needle bodies 401, and two symmetrically distributed shape-changing winding needles 414 are arranged on one side of the winding needle retracting nozzle 411, and one end of the shape-changing winding needle 414 is connected and fixed to the other end of the winding needle body 401.

[0041] Specifically, the winding needle spring 409 facilitates the installation and connection of the pressure plate 412 and the winding needle body 401, the first cam follower 405 drives the first slider 403 to move, and the second cam follower 406 drives the second slider 413 to move, so as to conveniently drive the winding needle body 401 to extend and retract, and the opening and closing needle head 410 is ejected. When the winding needle body 401 is inserted into the winding needle retraction nozzle 411, the winding needle body 401 is in an outwardly extended state, the opening and closing needle head 410 is retracted, the winding needle body 401 is retracted, and the winding needle body 401 is in an inwardly retracted state. The outwardly extended state of the winding needle body 401 is the winding state, and the inwardly retracted state is the unloading state. When the winding needle body 401 is retracted, the empty space between the two winding needle bodies 401 is the avoidance space of the unloading clamp, and the winding needle retraction and clamping unloading can solve the unloading and core pulling of ultra-thin winding cores, which is convenient and quick.

[0042] In order to facilitate those skilled in the art to fully understand the specific structure and principle of the diaphragm pressing assembly 9, the diaphragm pressing assembly 9 is further described. In the present embodiment, the two diaphragm pressing assemblies 9 are symmetrically distributed, and the diaphragm pressing assembly 9 includes a first cylinder seat 901, a film pressing cylinder 902 is arranged on one side of the first cylinder seat 901, and the film pressing cylinder 902 is connected and fixed to the first cylinder seat 901 by setting a first bearing 903, and the inner wall of the first cylinder seat 901 is slidably connected with two symmetrically distributed first guide rods 904, and the bottom end of the first guide rod 904 is provided with a film pressing seat 906, and the bottom inner wall of the film pressing seat 906 is rotatably connected with a film pressing roller 907, and the outside of the first guide rod 904 is provided with a limited slider 905, and one end of the film pressing cylinder 902 is provided with a connecting seat 908, and the connecting seat 908 is connected to the outer wall of one side of the cabinet 1.

[0043] Specifically, the first cylinder seat 901 is convenient for fixing the film pressing cylinder 902 through the first bearing 903, and the film pressing cylinder 902 drives the two connected film pressing seats 906 to rise and fall, and the first guide rod 904 is convenient for improving the stability of the rise and fall, and the film pressing seat 906 is convenient for pressing the diaphragm body 6 through the film pressing roller 907, and the limiting slider 905 is convenient for controlling the film pressing force.

[0044] In order to facilitate those skilled in the art to fully understand the specific structure and principle of the diaphragm clamping assembly 10, the diaphragm clamping assembly 10 is further described. In this embodiment, the two diaphragm clamping assemblies 10 are symmetrically distributed, and the diaphragm clamping assembly 10 includes a second cylinder seat 101, and a film clamping cylinder 102 is arranged on one side of the second cylinder seat 101. The film clamping cylinder 102 is connected and fixed to the second cylinder seat 101 by setting a second bearing 103. The inner wall of the second cylinder seat 101 is slidably connected with two symmetrically distributed second guide rods 104, and the bottom end of the second guide rod 104 is provided with a film clamping connection seat 105, and a film clamping knife 106 is arranged at the bottom of the upper film clamping connection seat 105, and a film clamping seat 107 adapted to the film clamping knife 106 is arranged at the top of the lower film clamping connection seat 105.

[0045] Specifically, the second cylinder seat 101 is convenient for fixing the film clamping cylinder 102 through the second bearing 103, and the film clamping cylinder 102 drives the two film clamping connecting seats 105 to rise and fall and contact, and the second guide rod 104 is convenient for improving the stability of the lifting, and the film clamping connecting seat 105 drives the film clamping knife 106 to contact the film clamping seat 107 to facilitate cutting of the diaphragm body 6.

[0046] In order to facilitate those skilled in the art to fully understand the specific structure and principle of the blanking clamp assembly 14, the blanking clamp assembly 14 is further described. In this embodiment, the blanking clamp assembly 14 includes a blanking clamp base 141, a blanking clamp cylinder 142 is provided on the top inner wall of the blanking clamp base 141, a third bearing 143 is provided on both sides of the blanking clamp cylinder 142, a third guide rod 144 is slidably connected to the inner wall of the third bearing 143, the third guide rod 144 is connected and fixed to the blanking clamp base 141 by providing the third bearing 143, a connecting plate 145 is provided at the bottom end of the third guide rod 144, and a pneumatic finger 146 is provided at the bottom of the connecting plate 145.

[0047] Specifically, the connecting plate 145 cooperates with the blanking clamp base 141 to facilitate flexible fixation of the third guide rod 144 and the blanking clamp cylinder 142, and to facilitate connecting and fixing the pneumatic finger 146 with the third guide rod 144 and the blanking clamp cylinder 142 through the connecting plate 145, thereby facilitating the pneumatic finger 146 to perform movable operations, and facilitating clamping and fixing the battery cell product. When the winding needle body 401 is in a retracted state, the blanking clamp cylinder 142 extends out, and the battery cell is clamped by the pneumatic finger 146. When the blanking clamp cylinder 142 retreats, the receiving cylinder 156 extends out, and the pneumatic finger 146 opens to place the battery cell in the receiving box 151 for receiving. When the receiving cylinder 156 retreats, the receiving operation is completed. The newly created material discharge method is focused on solving the core pulling problem caused by the small number of winding turns of the battery cell product and the thin thickness of the battery cell. It is convenient for stable material receiving and helps to improve the processing effect.

[0048] In order to facilitate those skilled in the art to fully understand the specific structure and principle of the connecting cell assembly 15, further description is made of the connecting cell assembly 15. In this embodiment, the connecting cell assembly 15 includes a material receiving box 151, a third slider 152 is connected to one side of the top of the material receiving box 151, a base of the material receiving box 151 is provided on one side of the third slider 152, and the base of the material receiving box 151 is connected to one side of the outer wall of the cabinet 1, a guide rail 154 adapted to the third slider 152 is provided on the inner wall of the base of the material receiving box 151, the third slider 152 is slidably connected to the outside of the guide rail 154, a third cylinder seat 155 is provided on one side of the inner wall of the base of the material receiving box 151, a material receiving cylinder 156 is provided on the inner wall of the third cylinder seat 155, and one end of the material receiving cylinder 156 is connected to the top of the third slider 152.

[0049] Specifically, the receiving box 151 is convenient for receiving the battery cells, the base of the receiving box 151 fixes the third cylinder seat 155, and the third cylinder seat 155 is convenient for installing and fixing the receiving cylinder 156. The base of the receiving box 151 fixes the guide rail 154, and the receiving cylinder 156 drives the third slider 152 to move on the guide rail 154, thereby conveniently driving the receiving box 151 to move, facilitating the receiving of materials, and helping to improve the stability of the receiving of materials.

[0050] Working principle: manually take the pole piece from the pole piece bin 2 and put it into the guide groove of the pole piece guide plate 3, manually push the negative pole piece into the winding assembly 4, step on the pedal to complete the negative pre-winding, manually push the positive pole piece into the winding assembly 4, step on the pedal to complete the positive pre-winding, manually step on the pedal to complete the total winding, move to the gluing station through the winding assembly 4, and the finishing gluing mechanism 11 performs the gluing process. The first cylinder seat 901 is convenient for fixing the film pressing cylinder 902 through the first bearing 903. The film pressing cylinder 902 drives the two connected film pressing seats 906 to rise and fall in contact, and the first guide rod 904 It is convenient to improve the stability of lifting and lowering. The film pressing seat 906 is convenient for pressing the film on the diaphragm body 6 through the film pressing roller 907. The limit slider 905 is convenient for controlling the film pressing force. The second cylinder seat 101 is convenient for fixing the film clamping cylinder 102 through the second bearing 103. The film clamping cylinder 102 drives the two film clamping connecting seats 105 to lift and contact. The second guide rod 104 is convenient for improving the stability of lifting and lowering. The film clamping connecting seat 105 drives the film clamping knife 106 to contact the film clamping seat 107 to facilitate cutting the diaphragm body 6. The cylinder of the finishing glue sticking mechanism 11 extends out to complete the glue sticking. The opening and closing needle head 410 When the winding needle body 401 is pushed out, the winding needle body 401 is inserted into the winding needle retracting nozzle 411, the winding needle body 401 is in an outwardly extended state, the opening and closing needle head 410 is retracted, the winding needle body 401 is retracted, and the winding needle body 401 is in an inwardly retracted state. The outwardly extended state of the winding needle body 401 is the winding state, and the inwardly retracted state is the unloading state. When the winding needle body 401 is retracted, the empty space between the two winding needle bodies 401 is the avoidance space of the unloading clamp. The retraction of the winding needle and the clamping unloading can solve the unloading and core pulling of ultra-thin winding cores. When the winding needle body 401 is in an inwardly retracted state, the unloading clamp cylinder 142 extends out, and the battery core is clamped by the pneumatic fingers 146. When the material unloading clamp cylinder 142 is retracted, the material receiving cylinder 156 is extended, and the pneumatic fingers 146 are opened to place the battery cells in the material receiving box 151 for receiving. When the material receiving cylinder 156 is retracted, the material receiving operation can be completed. The newly created material discharge method is dedicated to solving the core pulling problem caused by the small number of winding turns of the battery cell products and the thin thickness of the battery cells. It is convenient for stable material receiving and helps to improve the processing effect. The material receiving cylinder 156 drives the third slider 152 to move on the guide rail 154, and then facilitates the movement of the material receiving box 151, which is convenient for receiving the battery cells and repeating the processing.

[0051] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A curved battery winding machine, characterized in that: The invention comprises a cabinet (1), wherein an outer wall of one side of the cabinet (1) is provided with two pole piece bins (2) which are distributed in parallel, a pole piece guide plate (3) is provided on one side of the pole piece bin (2), and the two pole piece guide plates (3) are symmetrically distributed, a winding assembly (4) is provided on one side of the pole piece guide plate (3), a diaphragm unwinding mechanism (5) is provided below the pole piece bin (2), a tension swing-rod type floating roller (7) is provided on one side of the diaphragm unwinding mechanism (5), a diaphragm passing roller (8) is provided above the tension swing-rod type floating roller (7), and a diaphragm body is provided between the tension swing-rod type floating roller (7) and the diaphragm passing roller (8). A body (6), a diaphragm pressing assembly (9) is arranged on one side of the diaphragm roller (8), a diaphragm clamping assembly (10) is arranged on one side of the diaphragm pressing assembly (9), a tail gluing mechanism (11) is arranged below one side of the diaphragm clamping assembly (10), a tape preparation mechanism (12) is arranged on one side of the tail gluing mechanism (11), a synchronization mechanism (13) is arranged on the top of the tape preparation mechanism (12), and a winding assembly (4) is arranged inside the synchronization mechanism (13), a material discharge clamping assembly (14) is arranged above the synchronization mechanism (13), and a battery cell connection assembly (15) is arranged below the material discharge clamping assembly (14).

2. The arc-shaped battery winding machine according to claim 1, characterized in that: The winding assembly (4) comprises a winding needle body (401), wherein the two winding needle bodies (401) are symmetrically distributed, and a cover plate (402) is arranged on the top of the winding needle body (401), wherein a first slider (403) is arranged at the bottom of one end of one of the winding needle bodies (401), and a second slider (413) is arranged at the bottom of one end of the other winding needle body (401), and a winding needle connector (404) is arranged at the bottom of the first slider (403) and the second slider (413), and a first cam follower (405) is arranged at the bottom of the cover plate (402), and the cover plate A second cam follower (406) is also provided at the bottom of (402), and the first cam follower (405) and the second cam follower (406) are symmetrically distributed, the first slider (403) is slidably connected to the first cam follower (405) by providing a slide groove, and the second slider (413) is slidably connected to the second cam follower (406) by providing a slide groove, and the first cam follower (405) and the second cam follower (406) are respectively provided with ball guide columns (407), and the outside of the ball guide columns (407) is provided with ball guide sleeves (408).

3. The arc-shaped battery winding machine according to claim 2, characterized in that: The two ends of the ball guide column (407) are respectively provided with symmetrically distributed pressure plates (412), the inner wall of the pressure plate (412) is connected to one end of the winding needle spring (409), and the other end of the winding needle spring (409) is connected to the outer wall of one end of the winding needle body (401), and an opening and closing needle head (410) is provided on one side of the cover plate (402), and the opening and closing needle head (410) is connected and fixed to the winding needle body (401), and a winding needle retracting nozzle (411) is provided at the other end of the two winding needle bodies (401), and two symmetrically distributed shape-changing winding needles (414) are provided on one side of the winding needle retracting nozzle (411), and one end of the shape-changing winding needle (414) is connected and fixed to the other end of the winding needle body (401).

4. The arc-shaped battery winding machine according to claim 1, characterized in that: The two diaphragm pressing assemblies (9) are symmetrically distributed, and the diaphragm pressing assembly (9) includes a first cylinder seat (901), a film pressing cylinder (902) is arranged on one side of the first cylinder seat (901), and the film pressing cylinder (902) is connected and fixed to the first cylinder seat (901) by arranging a first bearing (903), and the inner wall of the first cylinder seat (901) is slidably connected to two symmetrically distributed first guide rods (904), and the bottom end of the first guide rod (904) is provided with a film pressing seat (906), and the bottom inner wall of the film pressing seat (906) is rotatably connected to a film pressing roller (907).

5. The arc-shaped battery winding machine according to claim 1, characterized in that: The two diaphragm clamping assemblies (10) are symmetrically distributed, and the diaphragm clamping assembly (10) includes a second cylinder seat (101), a diaphragm clamping cylinder (102) is arranged on one side of the second cylinder seat (101), and the diaphragm clamping cylinder (102) is connected and fixed to the second cylinder seat (101) by arranging a second bearing (103), and the inner wall of the second cylinder seat (101) is slidably connected with two symmetrically distributed second guide rods (104), and the bottom end of the second guide rod (104) is provided with a diaphragm clamping seat (105).

6. The arc-shaped battery winding machine according to claim 1, characterized in that: The blanking clamp assembly (14) comprises a blanking clamp base (141), a blanking clamp cylinder (142) is arranged on the top inner wall of the blanking clamp base (141), third bearings (143) are arranged on both sides of the blanking clamp cylinder (142), a third guide rod (144) is slidably connected to the inner wall of the third bearing (143), the third guide rod (144) is connected and fixed to the blanking clamp base (141) by arranging the third bearing (143), a connecting plate (145) is arranged at the bottom end of the third guide rod (144), and a pneumatic finger (146) is arranged at the bottom of the connecting plate (145).

7. The arc-shaped battery winding machine according to claim 1, characterized in that: The cell connection assembly (15) comprises a material receiving box (151), a third slider (152) is connected to one side of the top of the material receiving box (151), a material receiving box (151) base is provided on one side of the third slider (152), and the material receiving box (151) base is connected to one side of the outer wall of the cabinet (1), a guide rail (154) matching the third slider (152) is provided on the inner wall of the base of the material receiving box (151), the third slider (152) is slidably connected to the outside of the guide rail (154), a third cylinder seat (155) is provided on one side of the inner wall of the base of the material receiving box (151), a material receiving cylinder (156) is provided on the inner wall of the third cylinder seat (155), and one end of the material receiving cylinder (156) is connected to the top of the third slider (152).

8. The arc-shaped battery winding machine according to claim 5, characterized in that: A film clamping knife (106) is arranged at the bottom of the film clamping connection seat (105) located at the top, and a film clamping seat (107) adapted to the film clamping knife (106) is arranged at the top of the film clamping connection seat (105) located at the bottom.

9. The arc-shaped battery winding machine according to claim 4, characterized in that: A limiting slider (905) is arranged outside the first guide rod (904).

10. The arc-shaped battery winding machine according to claim 4, characterized in that: A connecting seat (908) is provided on the outside of one end of the film pressing cylinder (902), and the connecting seat (908) is connected to an outer wall of one side of the cabinet (1).

Images