A device for coating the tabs of a cylindrical battery current collector.

Abstract

This utility model discloses a coating equipment for the tabs of cylindrical battery current collectors, including a coating platform with multiple coating units. Each coating unit includes a positioning seat, a suction head, a contour positioning mechanism, a transfer suction and blowing mechanism, a sliding table mechanism, and a roller coating mechanism. The suction head is located above the positioning seat and is driven by an external robot or external device. The suction head is used to transfer the current collector and place it on the positioning seat. The contour positioning mechanism works with the suction head to position the current collector. The transfer suction and blowing mechanism is located below the positioning seat and is used to transfer a pre-cut film to the bottom of the current collector and attach the film to the tab of the current collector through a lifting action. The sliding table mechanism drives the roller coating mechanism, causing the rollers in the roller coating mechanism to reciprocate and cover the film with the tab of the current collector, achieving the coating effect. This current collector tab coating equipment can accurately contour and position, and has a good coating effect.

Description

Technical Field

[0001] This utility model relates to the field of cylindrical battery manufacturing technology, and in particular to a device for coating the tabs of cylindrical battery current collectors. Background Technology

[0002] During the production of cylindrical lithium batteries, depending on the battery manufacturing process, some manufacturers equip the current collector plates with tabs. These tabs are the carriers for energy transfer between the battery and the external environment, used for welding the positive electrode to the end cap or the negative electrode to the casing, ensuring a reliable connection between the positive and negative electrodes of the cell and the casing. Please refer to the attached instructions. Figure 1 When manufacturing the current collector 100, before welding the tab 101 and the current collector 100 together, a film 102 is wrapped around the head of the tab 101 at a distance of 1-2mm from the edge of the current collector 100 to provide insulation and prevent the tab 101 of the battery from short-circuiting.

[0003] Traditional current collector tab coating process is prone to problems such as incorrect coating position, large coating angle deviation, tape wrinkles, incomplete coating, loose coating, tab deformation, and unstable quality due to the lack of precise positioning of current collectors and film during material feeding. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a device for coating the tabs of cylindrical battery current collectors with adhesive, thereby overcoming the deficiencies in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A device for coating the tabs of a cylindrical battery current collector includes a coating table with multiple coating units on the coating table; each coating unit includes a positioning seat, a suction head, a contour positioning mechanism, a transfer suction and blowing mechanism, a sliding table mechanism, and a roller coating mechanism.

[0007] The suction head picks up the collector plate and transfers it to the positioning seat;

[0008] The contour positioning mechanism works in conjunction with the suction head to press and position the collector plate on the positioning seat;

[0009] The transplanting adhesive suction and blowing mechanism includes a transplanting servo motor, a coupling, a linear module and a drag chain connected in sequence. The linear module is equipped with a slide rail lifting frame driven by a lifting cylinder. The slide rail lifting frame is equipped with a variable pitch module. The variable pitch module is equipped with multiple adhesive suction and blowing heads at intervals. The multiple adhesive suction and blowing heads correspond one-to-one with multiple positioning seats.

[0010] The glue suction and blowing head is equipped with a built-in air channel, which is connected to the air hole on the top surface of the glue suction and blowing head. A connector is provided on one side of the glue suction and blowing head, and the air pipe deployed in the drag chain is connected to the glue suction and blowing head through the connector.

[0011] The slide mechanism drives the roller coating mechanism;

[0012] The roller coating mechanism includes a wheel seat and a roller; the wheel seat is mounted on the sliding block of the slide mechanism via a hinge and a guide shaft, and the roller is rotatably mounted on the wheel seat. The roller is made of non-adhesive material.

[0013] Preferably, the positioning seat is provided with a boss similar in shape to the collector plate, and a through glue passage is provided in the center of the positioning seat, the through glue passage intersecting the boss at a cross shape.

[0014] Preferably, the suction head includes a first adsorption part and an L-shaped second adsorption part, the first adsorption part and the second adsorption part are integrally combined into a door frame shape, so that a doorway is formed between the first adsorption part and the second adsorption part; the first adsorption part corresponds to the arc end of the adsorption collector plate, and the second adsorption part corresponds to the tab end of the adsorption collector plate.

[0015] Furthermore, the contour positioning mechanism includes a pair of positioning claws whose opening and closing are driven by a positioning cylinder, and a limiting stop pin and a limiting stop block that cooperate with each other are provided between the pair of positioning claws; the contour positioning mechanism is installed above the positioning seat, and the pair of positioning claws are respectively located on both sides of the boss of the positioning seat.

[0016] Furthermore, each positioning claw has a first clamping part and a second clamping part, and there is a recessed clamping groove between the first clamping part and the second clamping part; the first clamping part of the positioning claw corresponds to the arc end of the current collector, the second clamping part of the positioning claw corresponds to the tab end of the current collector, and the clamping groove of the positioning claw corresponds to the through groove of the positioning seat.

[0017] Preferably, the slide mechanism includes a slide cylinder, a slide guide rail, sliding blocks, and a slide limiting assembly; the slide cylinder drives the slide connecting plate and the cylinder connecting plate through a floating joint, and drives multiple sliding blocks arranged on the slide guide rail through the slide connecting plate; each sliding block is equipped with a roller rubber coating mechanism, and multiple roller rubber coating mechanisms correspond one-to-one with multiple positioning seats.

[0018] Furthermore, the slide table limiting assembly includes a slide rail stop, a cylinder stop seat, a cylinder buffer, and a cylinder stop; the slide rail stop is located at the end of the slide table guide rail and limits the sliding block; the cylinder stop seat is located on one side of the cylinder connecting plate, and the cylinder buffer and cylinder stop are arranged side by side on the cylinder stop seat.

[0019] Preferably, a pad is provided on the surface of the coating table, and multiple positioning seats are installed side by side on the pad through openings.

[0020] Furthermore, an adjustment block is also provided on the outer side of the pad.

[0021] Preferably, a return spring is sleeved on the guide shaft.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1) The cylindrical battery current collector tab coating device of this case has a positioning seat with a protrusion similar in shape to the current collector for placing the current collector; each positioning claw in its contour positioning mechanism has a first clamping part and a second clamping part, and there is a recessed clamping groove between the first clamping part and the second clamping part; the first clamping part of the positioning claw corresponds to the arc end of the current collector, the second clamping part of the positioning claw corresponds to the tab end of the current collector, and the clamping groove of the positioning claw corresponds to the glue through groove of the positioning seat; through the cooperation of the contour positioning seat and the contour positioning claw, the current collector and the electrode on the current collector are pressed and accurately positioned, and the precise positioning of the current collector in the up, down and left and right directions ensures that the film and the current collector are flat and precisely attached, without producing wrinkles and bubbles, ensuring the quality of coating and effectively improving the finished product qualification rate.

[0024] 2) The cylindrical battery current collector tab coating device of this case has a suction head including a first adsorption part and an L-shaped second adsorption part. The first adsorption part and the second adsorption part are integrally combined into a door frame shape, so that a doorway is formed between the first adsorption part and the second adsorption part. The first adsorption part is corresponding to the arc end of the current collector, and the second adsorption part is corresponding to the tab end of the current collector. The suction head can adsorb both ends of the current collector at the same time, which not only ensures the stability of adsorbing and transporting the current collector, but also allows the roller to reciprocate within the doorway of the suction head, avoiding interference from the suction head. The suction head has a simple, efficient and stable operation.

[0025] 3) The cylindrical battery current collector tab coating device in this case has a contour positioning mechanism with mutually cooperating limit stop nails and limit stop blocks to ensure the accuracy of the opening and closing degree of the positioning cylinder driven by the positioning claw, and further improve the positioning accuracy of the current collector.

[0026] 4) The cylindrical battery current collector tab coating device of this case has a slide table limiting component in its slide table mechanism; wherein the slide rail stop is set at the end of the slide table guide rail and limits the sliding block; wherein the cylinder stop seat, cylinder buffer and cylinder stop jointly limit the stroke of the cylinder connecting plate; thereby effectively ensuring the accuracy of the reciprocating stroke of the roller and further improving the positional accuracy of coating the electrode sheet by the roller.

[0027] 5) The cylindrical battery current collector tab coating device in this case has a simple structure, strong practicality, and each function is centrally controlled by PLC, and relevant data is uploaded to MES, with a high degree of automation.

[0028] To provide a clearer understanding of this invention, the preferred embodiments of this invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the current collector tab coating process in the background technology;

[0030] Figure 2 , Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0031] Figure 4 This is a structural schematic diagram of the coating table of this utility model;

[0032] Figure 5 This is a structural schematic diagram of the positioning seat of this utility model;

[0033] Figure 6 This is a schematic diagram of the suction head of this utility model;

[0034] Figure 7 This is a schematic diagram of the contour positioning mechanism of this utility model;

[0035] Figure 8 This is a schematic diagram of the transplanting adhesive suction and blowing mechanism of this utility model;

[0036] Figure 9 This is a schematic diagram of the slide mechanism of this utility model;

[0037] Figure 10 This is a schematic diagram of the roller coating mechanism of this utility model.

[0038] Attached image labels:

[0039] 1-Glue-coating table, 2-Positioning seat, 3-Suction head, 4-Contouring positioning mechanism, 5-Transfer suction and blowing mechanism, 6-Slide table mechanism, 7-Roller glue-coating mechanism;

[0040] 11-Plate, 12-Adjusting block;

[0041] 21-Boss, 22-Glue passage;

[0042] 31-First adsorption section, 32-Second adsorption section, 33-Door opening;

[0043] 41-Positioning cylinder, 42-Positioning claw, 43-Limiting stop pin, 44-Limiting stop block; 421-First clamping part, 422-Second clamping part, 423-Clamping groove part;

[0044] 51-Transplanting servo motor, 52-Coupling, 53-Linear module, 54-Drag chain, 55-Slide rail lifting frame, 56-Variable pitch module, 57-Glue suction and blowing head; 571-Air hole, 572-Connector;

[0045] 61-Slide table cylinder, 62-Slide table guide rail, 63-Sliding block, 64-Floating joint, 65-Slide table connecting plate, 66-Cylinder connecting plate; 671-Slide rail stop block, 672-Cylinder stop seat, 673-Cylinder buffer, 674-Cylinder stop.

[0046] 71-Wheel seat, 72-Roller, 73-Hinge, 74-Guide shaft;

[0047] 100-Current collector, 101-Electrode, 102-Film. Detailed Implementation

[0048] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0049] Furthermore, if terms such as "first" or "second" are used for descriptive purposes only, they are mainly used to distinguish different devices, components or parts (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, components or parts, and should not be construed as indicating or implying relative importance.

[0050] Furthermore, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0051] Please also refer to Figure 1-10This utility model provides a coating equipment for the tabs of a cylindrical battery current collector, including a coating table 1. The coating table 1 has multiple coating units, each including a positioning seat 2, a suction head 3, a contour positioning mechanism 4, a transfer suction and blowing mechanism 5, a sliding table mechanism 6, and a roller coating mechanism 7. The positioning seat 2 is used to place the current collector 100 to be coated. The suction head 3 is positioned above the positioning seat 2 and driven by an external robotic arm or external device. The suction head 3 is used to transfer the current collector 100 and place it onto the positioning seat 2. Positioning mechanism 4 works with suction head 3 to position collector plate 100; transfer adhesive blowing mechanism 5 is located below positioning seat 2, used to transfer pre-cut film 102 to below collector plate 100, and to stick film 102 to electrode tab 101 of collector plate 100 by lifting action; slide mechanism 6 is used to drive roller coating mechanism 7, so that the roller in roller coating mechanism 7 reciprocates and wraps the two ends of film 102 to electrode tab 101 of collector plate 100 in sequence, so as to achieve the effect of coating electrode tab 101.

[0052] A coating table 1 has a pad 11 on its surface. Multiple positioning seats 2 are installed side by side on the pad 11 through holes. An adjustment block 12 is also provided on the outside of the pad 11 to adjust the lateral installation position of the pad 11 on the coating table 1.

[0053] The positioning seat 2 is provided with a boss 21 that is similar in shape to the collector plate 100. The boss 21 is used to place the collector plate 100 to be coated with glue. A through glue channel 22 is provided in the center of the positioning seat 2. The through glue channel 22 intersects the boss 21. Since the through glue channel 22 passes through the boss 21 from top to bottom, the glue sheet 102 on the transfer suction blowing mechanism 5 can be lifted and pasted to the bottom surface of the collector plate 100 on the boss 21.

[0054] The suction head 3 includes a first adsorption part 31 and an L-shaped second adsorption part 32. The first adsorption part 31 and the second adsorption part 32 are integrally combined into a door frame shape, so that a doorway 33 is formed between the first adsorption part 31 and the second adsorption part 32. The first adsorption part 31 is corresponding to the arc end of the adsorption collector 100, and the second adsorption part 32 is corresponding to the tab end of the adsorption collector 100, so that the first adsorption part 31 and the second adsorption part 32 span across both sides of the film 102 to be coated. When the roller in the roller coating mechanism 7 reciprocates in the doorway 33 between the first adsorption part 31 and the second adsorption part 32, it can press the film 102 tightly and coat it onto the tab 101 of the adsorption collector 100.

[0055] The working principle of suction head 3 is as follows:

[0056] Driven by an external robotic arm, the suction head 3 adsorbs the collector plate 100 from the hopper; the first adsorption part 31 and the second adsorption part 32 of the suction head 3 adsorb the two ends of the collector plate 100 respectively, and transfer the collector plate 100 to the contour boss 21 of the positioning seat 2 in a preset direction, and press the collector plate 100 down, so that the collector plate 100 is aligned end to end on the boss 21 of the positioning seat 2.

[0057] The contour positioning mechanism 4 includes a pair of positioning claws 42 whose opening and closing are driven by a positioning cylinder 41. A limiting stop pin 43 and a limiting stop block 44 are provided between the pair of positioning claws 42. The contour positioning mechanism 4 is installed above the positioning seat 2. The pair of positioning claws 42 are located on both sides of the boss 21 of the positioning seat 2. The cylinder 49 controls the opening and closing of the positioning claws 42. The limiting stop pin 43 and the limiting stop block 44 can adjust the clamping degree of the pair of positioning claws 42 on the boss 21 of the positioning seat 2, so that the positioning claws 42 can be adapted to clamp different models of collector plates 100, avoiding excessive clamping that will squeeze and deform the collector plates 100 and damage them.

[0058] Furthermore, each positioning claw 42 has a first clamping portion 421 and a second clamping portion 422, and a recessed clamping groove 423 is provided between the first clamping portion 421 and the second clamping portion 422; the first clamping portion 421 of the positioning claw 42 corresponds to the arc end of the current collector 100, the second clamping portion 422 of the positioning claw 42 corresponds to the tab end of the current collector 100, and the clamping groove 423 of the positioning claw 42 corresponds to the through groove 22 of the positioning seat 2, so that the positioning claw 42 and the positioning seat 2 cooperate to form a contour clamping effect on the current collector 100.

[0059] The working principle of the contour positioning mechanism 4 is as follows:

[0060] The suction head 3 transfers the collector plate 100 to the contour boss 21 of the positioning seat 2 and presses the collector plate 100 vertically; then the positioning cylinder 41 drives the positioning claw 42 to open and close and clamp the collector plate 100 from the side, so that the collector plate 100 is accurately positioned on the boss 21 of the positioning seat 2.

[0061] The transplanting adhesive suction and blowing mechanism 5 includes a transplanting servo motor 51, a coupling 52, a linear module 53 and a drag chain 54 connected in sequence. The linear module 53 is equipped with a slide rail lifting frame 55 driven by a lifting cylinder. The slide rail lifting frame 55 is equipped with a variable pitch module 56. The variable pitch module 56 is equipped with multiple adhesive suction and blowing heads 57 at intervals. The multiple adhesive suction and blowing heads 57 correspond one-to-one with multiple positioning seats 2.

[0062] The transplanting adhesive suction and blowing mechanism 5 is installed below the positioning seat 2. The transplanting servo motor 51 drives the linear module 53 to move laterally through the coupling 52. The control air pipe and control line in the drag chain 54 follow the linear module 53 to move laterally. After the linear module 53 moves laterally into place, the lifting cylinder 21 drives the slide rail lifting frame 55 to rise and fall, which in turn drives the variable pitch module 56 to rise and fall, and finally drives the adhesive suction and blowing head 57 on the variable pitch module 56 to rise and fall.

[0063] Furthermore, the glue suction and blowing head 57 is provided with a built-in air channel, which is connected to the air hole 571 on the top surface of the glue suction and blowing head 57. A connector 572 is provided on one side of the glue suction and blowing head 57, and the air pipe deployed in the cable chain 54 is connected to the glue suction and blowing head 57 through the connector 572.

[0064] The working principle of the transplanting adhesive suction and blowing mechanism 5 is as follows:

[0065] The film 102, cut in the previous process, is held by the glue suction head 57. The transfer servo motor 51 drives the linear module 53 to move laterally through the coupling 52, transferring the glue suction head 57 and the film 102 to the bottom of the positioning seat 2. Multiple glue suction heads 57 are aligned with multiple positioning seats 2 one by one. The lifting cylinder drives the variable pitch module 56 to rise and lift the glue suction head 57, so that the glue suction head 57 carries the film 102 upward through the glue passage 22 of the positioning seat 2, and sticks and presses the film 102 firmly onto the bottom surface of the tab 101 (at this time, the glued side of the film 102 is facing up and the un-glue side is facing down), ensuring that the film 102 and the collector plate 100 are precisely fitted without wrinkles or bubbles. Then, the external air source is activated, and the glue suction and blowing head 57 blows air onto the upper collector plate 100, causing both ends of the film 102 to be vertically raised, awaiting the subsequent roller coating mechanism 7 to slide and coat the film. During this process, the glue suction and blowing head 57 has two working modes: suction and blowing. When suctioning, it adsorbs and transports the film 102 to its position. After the film 102 is attached to the bottom surface of the tab 101, it switches to blowing, causing both ends of the film 102 to be raised, preparing for the subsequent roller coating.

[0066] The slide mechanism 6 includes a slide cylinder 61, a slide guide rail 62, sliding blocks 63, and a slide limiting assembly. The slide cylinder 61 drives the slide connecting plate 65 and the cylinder connecting plate 66 through the floating joint 64, and drives multiple sliding blocks 63 arranged on the slide guide rail 62 through the slide connecting plate 65. Each sliding block 63 is equipped with a roller rubber coating mechanism 7, and multiple roller rubber coating mechanisms 7 correspond one-to-one with multiple positioning seats 2.

[0067] The slide table limiting assembly includes a slide rail stop 671, a cylinder stop seat 672, a cylinder buffer 673, and a cylinder stop 674. The slide rail stop 671 is located at the end of the slide table guide rail 62 and limits the sliding block 63. The cylinder stop seat 672 is located on one side of the cylinder connecting plate 66, and the cylinder buffer 673 and the cylinder stop 674 are arranged side by side on the cylinder stop seat 672. The cylinder stop seat 672, the cylinder buffer 673, and the cylinder stop 674 together limit the stroke of the cylinder connecting plate 66.

[0068] The working principle of the slide mechanism 6 is as follows:

[0069] The slide mechanism 6 is installed above the positioning seat 2. When the suction head 3 presses down to press the collector plate 100 onto the positioning seat 2, and the positioning claw 42 in the contour positioning mechanism 4 accurately positions the collector plate 100, the slide cylinder 61 drives the floating joint 64, the cylinder connecting plate 66 and the slide connecting plate 65 to slide back and forth, thereby driving the sliding block 63 to move back and forth on the slide guide rail 62, and finally driving the roller coating mechanism 7 on the sliding block 63 to coat the film 102 on the collector plate 100; the slide limit component limits and adjusts the stroke of the relevant components.

[0070] The roller coating mechanism 7 includes a wheel seat 71 and a roller 72. The wheel seat 71 is mounted on the sliding block 63 of the slide mechanism 6 via a hinge 73 and a guide shaft 74. The roller 72 is rotatably mounted on the wheel seat 71. The roller 72 is made of non-adhesive material. In order to ensure the flatness of the coating and avoid the occurrence of air bubbles and wrinkles, a return spring is sleeved on the guide shaft 74.

[0071] The working principle of roller 72 coating mechanism 7 is as follows:

[0072] a. The roller 72 coating mechanism 7 is installed above the positioning seat 2. Multiple rollers 72 correspond one-to-one with multiple positioning seats 2. The rollers 72 are driven by the sliding block 63 of the slide mechanism 6 to reciprocate to coat the film 102 on the collector plate 100.

[0073] b. During the coating process, there is a doorway 33 between the first adsorption part 31 and the second adsorption part 32 of the suction head 3, and the roller 72 moves back and forth within the doorway 33 of the suction head 3, thereby avoiding interference from the suction head 3.

[0074] c. Since the adhesive suction and blowing head 57 in the transplanting adhesive suction and blowing mechanism 5 below the positioning seat 2 has a blowing function, the adhesive suction and blowing head 57 blows air upward, causing the two ends of the adhesive sheet 102 pasted on the collector plate 100 to be blown vertically up.

[0075] d. During the first stroke (outbound stroke) of roller 72, roller 72 gradually presses and covers the first end of film 102 onto collector plate 100. Furthermore, since roller 72 is made of non-adhesive material, roller 72 will not stick to film 102.

[0076] e. During the second stroke (return stroke) of roller 72, roller 72 gradually presses and wraps the second end of film 102 onto collector plate 100, thereby completing the coating of roller 72 onto collector plate 100.

[0077] The working process or principle of the cylindrical battery current collector tab coating equipment in this case is as follows:

[0078] 1. The suction head 3 is placed on the positioning seat 2 and pressed down;

[0079] 2. The contour positioning mechanism 4 has a positioning claw 42 that contours the collector plate 100. The positioning cylinder 41 drives the positioning claw 42 to clamp the collector plate 100 on the positioning seat 2 from the side, so as to accurately position the collector plate 100.

[0080] 3. The glue suction head 57 sucks in air and adsorbs the film 102 and moves it horizontally to the bottom of the positioning seat 2. Then the lifting cylinder drives the glue suction head 57 to rise, so that the glue suction head 57 carries the film 102 through the glue passage groove 22 of the positioning seat 2 and sticks the film 102 to the bottom surface of the collector plate 100.

[0081] 4. The adhesive suction and blowing head 57 blows air, causing both ends of the film 102 to be vertically lifted;

[0082] 5. The slide cylinder 61 drives the roller 72 mounted on the sliding block 63 to reciprocate;

[0083] 6. Since the current collector 100 is still pressed and positioned on the positioning seat 2, during the reciprocating motion of the roller 72, the first and second ends of the film 102 will be wrapped onto the tab 101 of the current collector 100 in turn, thus completing the coating process.

[0084] Compared to existing technologies, the cylindrical battery current collector tab coating equipment of this invention has a positioning seat with a protrusion similar in shape to the current collector for placing the current collector; each positioning claw in its contour positioning mechanism has a first clamping part and a second clamping part, and a recessed clamping groove between the first clamping part and the second clamping part; the first clamping part of the positioning claw corresponds to the arc end of the current collector, the second clamping part of the positioning claw corresponds to the tab end of the current collector, and the clamping groove of the positioning claw corresponds to the glue through groove of the positioning seat; through the cooperation of the contour positioning seat and the contour positioning claw, the current collector and the electrode on the current collector are pressed and precisely positioned, and the precise positioning of the current collector in the up, down, left and right directions ensures that the film and the current collector are flat and precisely bonded, without producing wrinkles and bubbles, thus ensuring the quality of coating and effectively improving the finished product qualification rate.

[0085] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A coating equipment for current collector tabs of a cylindrical battery, comprising a coating table (1) and a plurality of coating units disposed on the coating table (1), characterized in that: Each coating unit includes a positioning seat (2), a suction head (3), a contour positioning mechanism (4), a transplanting suction and blowing mechanism (5), a sliding table mechanism (6), and a roller coating mechanism (7); The suction head (3) adsorbs the collector plate (100) and transfers it to the positioning seat (2); The contour positioning mechanism (4) works in conjunction with the suction head (3) to press and position the collector plate (100) on the positioning seat (2); The transplanting adhesive suction and blowing mechanism (5) includes a transplanting servo motor (51), a coupling (52), a linear module (53) and a drag chain (54) connected in sequence. The linear module (53) is equipped with a slide rail lifting frame (55) driven by a lifting cylinder. The slide rail lifting frame (55) is equipped with a variable pitch module (56). The variable pitch module (56) is equipped with multiple adhesive suction and blowing heads (57) spaced apart. The multiple adhesive suction and blowing heads (57) correspond one-to-one with multiple positioning seats (2). The glue suction and blowing head (57) is provided with an internal air channel, which is connected to the air hole (571) on the top surface of the glue suction and blowing head (57). A connector (572) is provided on one side of the glue suction and blowing head (57). The air pipe deployed in the drag chain (54) is connected to the glue suction and blowing head (57) through the connector (572). The slide mechanism (6) drives the roller coating mechanism (7); The roller coating mechanism (7) includes a wheel seat (71) and a roller (72); the wheel seat (71) is mounted on the sliding block (63) of the slide mechanism (6) via a hinge (73) and a guide shaft (74), and the roller (72) is rotatably mounted on the wheel seat (71), and the roller (72) is made of non-adhesive material.

2. The equipment for coating the tabs of a cylindrical battery current collector according to claim 1, characterized in that: The positioning seat (2) is provided with a boss (21) similar in shape to the collector plate (100). A through glue groove (22) is provided in the center of the positioning seat (2). The through glue groove (22) and the boss (21) intersect in a cross shape.

3. The equipment for coating the tabs of a cylindrical battery current collector according to claim 1, characterized in that: The suction head (3) includes a first adsorption part (31) and an L-shaped second adsorption part (32). The first adsorption part (31) and the second adsorption part (32) are integrally combined into a door frame shape, so that a doorway (33) is formed between the first adsorption part (31) and the second adsorption part (32). The first adsorption part (31) corresponds to the arc end of the adsorption collector plate (100), and the second adsorption part (32) corresponds to the tab end of the adsorption collector plate (100).

4. The equipment for coating the tabs of a cylindrical battery current collector according to claim 2, characterized in that: The contour positioning mechanism (4) includes a pair of positioning claws (42) whose opening and closing are driven by a positioning cylinder (41). A limiting stop nail (43) and a limiting stop block (44) are provided between the pair of positioning claws (42). The contour positioning mechanism (4) is installed above the positioning seat (2), and the pair of positioning claws (42) are located on both sides of the boss (21) of the positioning seat (2).

5. The equipment for coating the tabs of a cylindrical battery current collector according to claim 4, characterized in that: Each positioning claw (42) has a first clamping part (421) and a second clamping part (422), and there is a recessed clamping groove (423) between the first clamping part (421) and the second clamping part (422); the first clamping part (421) of the positioning claw (42) corresponds to the arc end of the current collector (100), the second clamping part (422) of the positioning claw (42) corresponds to the tab end of the current collector (100), and the clamping groove (423) of the positioning claw (42) corresponds to the glue through groove (22) of the positioning seat (2).

6. The equipment for coating the tabs of a cylindrical battery current collector according to claim 1, characterized in that: The slide mechanism (6) includes a slide cylinder (61), a slide guide rail (62), a sliding block (63), and a slide limiting assembly; the slide cylinder (61) drives the slide connecting plate (65) and the cylinder connecting plate (66) through the floating joint (64), and drives multiple sliding blocks (63) set on the slide guide rail (62) through the slide connecting plate (65); each sliding block (63) is equipped with a roller coating mechanism (7), and multiple roller coating mechanisms (7) correspond one-to-one with multiple positioning seats (2).

7. The equipment for coating the tabs of a cylindrical battery current collector according to claim 6, characterized in that: The slide table limiting assembly includes a slide rail stop (671), a cylinder stop seat (672), a cylinder buffer (673), and a cylinder stop (674); the slide rail stop (671) is located at the end of the slide table guide rail (62) and limits the sliding block (63); the cylinder stop seat (672) is located on one side of the cylinder connecting plate (66), and the cylinder buffer (673) and the cylinder stop (674) are arranged side by side on the cylinder stop seat (672).

8. The equipment for coating the tabs of a cylindrical battery current collector according to claim 1, characterized in that: The coating table (1) has a pad (11) on its surface, and multiple positioning seats (2) are installed side by side on the pad (11) through openings.

9. The equipment for coating the tabs of a cylindrical battery current collector according to claim 8, characterized in that: An adjustment block (12) is also provided on the outside of the pad (11).

10. The equipment for coating the tabs of a cylindrical battery current collector according to claim 1, characterized in that: A reset spring is fitted on the guide shaft (74).

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