Protective glue pasting device

Abstract

The embodiment of the utility model discloses a protective glue pasting device for a lithium battery winding cell. The protective glue pasting device comprises a glue pasting mechanism, a cutter mechanism and a deviation rectifying mechanism which are sequentially arranged in the conveying direction of a pole piece material belt, the deviation rectifying mechanism is positioned between the rubberizing mechanism and the cutter mechanism; the rubberizing mechanism comprises an adsorption part which is used for adsorbing the adhesive tape to move to the surface of the pole piece for rubberizing; the cutter mechanism is used for cutting off the pole piece material belt and dividing the pole piece material belt into a plurality of pole pieces; the deviation rectifying mechanism comprises a detection sensor and a controller, the detection sensor is connected with the adsorption part through the controller, the detection sensor is used for detecting the position of the pole piece cut off by the cutter mechanism, and the controller is used for adjusting the position of the adsorption part according to the position information of the pole piece to enable the adsorption part to be aligned with the pole piece before the rubberizing mechanism rubberizes. By arranging the deviation rectifying mechanism, the adsorption piece in the rubberizing mechanism is aligned with the pole piece, so that the rubberizing precision is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery production manufacturing technical field especially relates to a paste protection gum device. BACKGROUND

[0002] The pole piece is the active material carrier of the lithium battery winding electric core, and the cutting knife mechanism plays a crucial role in the fine production process of the pole piece pasting glue, and is responsible for the cutting operation of the pole piece. However, the cutting knife inevitably produces a certain degree of force on the pole piece during operation. This force may cause the original accurate position of the pole piece to shift slightly or even more obviously. Once the position of the pole piece changes, it is most likely to cause it to correspond accurately with the subsequent pasting glue mechanism. The operation of the pasting glue mechanism is based on the pole piece being in the preset accurate position to complete the pasting action. The deviation of the pole piece position, even if it is only a very small error, may cause the pasting position to deviate, thereby seriously affecting the quality of the pole piece pasting, and even may cause the entire product to not meet the quality standard, unable to meet the actual use requirement. SUMMARY

[0003] The utility model embodiment discloses a paste protection gum device for solving the problem that the cutting knife mechanism in the operation process will cause the pole piece position to shift, resulting in the pole piece and the subsequent pasting glue mechanism cannot correspond accurately.

[0004] The utility model embodiment provides a paste protection gum device, which comprises: a pasting glue mechanism, a cutting knife mechanism and a correction mechanism arranged in sequence along the conveying direction of the pole piece material belt.

[0005] The correction mechanism is located between the pasting glue mechanism and the cutting knife mechanism.

[0006] The pasting glue mechanism comprises a suction accessory, which is used to suction the adhesive tape to the surface of the pole piece for pasting.

[0007] The cutting knife mechanism is used to cut off the pole piece material belt and divide the pole piece material belt into a plurality of pole pieces.

[0008] The correction mechanism comprises a detection sensor and a controller, the detection sensor is connected with the suction accessory through the controller, the detection sensor is used to detect the position of the pole piece, and the controller is used to adjust the position of the suction accessory to align the suction accessory with the pole piece before the pasting glue mechanism pastes.

[0009] Further, two or three pasting glue mechanisms are included, the distance between the center points of the suction accessories of two adjacent pasting glue mechanisms is equal to the distance between the two corner points of the first circle of the pole piece, and the two corner points of the pole piece are synchronously pasted.

[0010] Furthermore, the cutting mechanism is located in front of the adhesive applicator for applying adhesive to the electrode head.

[0011] Furthermore, a first adhesive application mechanism, a second adhesive application mechanism, and a third adhesive application mechanism are sequentially arranged along the electrode strip conveying direction. The first and second adhesive application mechanisms are respectively used to apply adhesive strips at the two corner points of the first ring of the electrode, and the third adhesive application mechanism is used to apply adhesive strips at the head of the electrode. A cutting mechanism and a second correction mechanism are sequentially arranged between the second and third adhesive application mechanisms. The detection sensor of the second correction mechanism is connected to the adsorption component of the third adhesive application mechanism through a control sensor.

[0012] Furthermore, a first correction mechanism is provided on the side of the first adhesive applicator away from the second adhesive applicator. The detection sensor of the first correction mechanism is connected to the adsorption component of the first adhesive applicator and the adsorption component of the second adhesive applicator respectively through a controller.

[0013] Furthermore, a first adhesive application mechanism, a second adhesive application mechanism, and a third adhesive application mechanism are sequentially arranged along the electrode material conveying direction; the first adhesive application mechanism is used to apply adhesive strips at the head of the electrode; a cutting mechanism and a correction mechanism are arranged on the side of the first adhesive application mechanism away from the second adhesive application mechanism, and the detection sensor of the correction mechanism is connected to the adsorption components of the first adhesive application mechanism, the second adhesive application mechanism, and the third adhesive application mechanism respectively through a controller.

[0014] Furthermore, a first adhesive applicator and a second adhesive applicator are sequentially arranged along the electrode sheet conveying direction; the first adhesive applicator is used to apply adhesive strips at the head of the electrode sheet and adhesive strips at the second corner of the electrode sheet; a cutting mechanism and a correction mechanism are arranged on the side of the first adhesive applicator away from the second adhesive applicator, and the detection sensor of the correction mechanism is connected to the adsorption components of the first adhesive applicator and the second adhesive applicator respectively through a controller.

[0015] Furthermore, the adhesive application mechanism includes a first adsorption member and a second adsorption member, which are arranged opposite to each other and located on both sides of the electrode sheet. The first adsorption member is used to adsorb the adhesive strip and move it to one side of the electrode sheet for adhesive application, and the second adsorption member is used to adsorb the adhesive strip and move it to the other side of the electrode sheet for adhesive application.

[0016] Furthermore, the adhesive applicator includes a frame and a film roll, multiple auxiliary rollers, a pressing module, a cutting module, a pulling module, and an applicator, which are arranged sequentially on the frame along the adhesive strip conveying direction.

[0017] The film roll is disposed at one end of the frame, the glue pressing module is disposed in the middle of the frame, multiple auxiliary rollers are disposed between the glue pressing module and the film roll, the glue strip extends from the film roll, the middle part of the glue strip is wound around the multiple auxiliary rollers, and the end of the glue strip is fixed to the glue pressing module;

[0018] Both the glue-pulling module and the glue-applying module are located on the side of the glue-pressing module away from the auxiliary roller. The glue-pulling module is located on the glue-applying surface close to the glue-applying module. The glue-pulling module is used to press the end of the glue strip located at the glue outlet of the glue-pressing module onto the adsorption surface of the glue-applying module and move together with the glue-applying module away from the glue-pressing module to pull the glue strip out from the glue-pressing module.

[0019] The cutting module is located at the glue outlet of the glue pressing module and is used to cut the glue strip after it has been pulled out of the glue pressing module to a set length.

[0020] Furthermore, a pressing mechanism is provided on the side of the adhesive applicator away from the correction mechanism.

[0021] As can be seen from the technical solution, the embodiments provided by this utility model have the following advantages: This embodiment sets up a correction mechanism between the cutting mechanism and the adhesive application mechanism. When the cutting mechanism causes the electrode material to shift, the detection sensor in the correction mechanism can obtain the accurate position of the electrode and adjust the position of the adsorption component in the adhesive application mechanism through the controller, so that the adsorption component in the adhesive application mechanism is aligned with the electrode, thus ensuring the adhesive application accuracy. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the structure of an adhesive protection device provided in an embodiment of this utility model;

[0024] Figure 2 This is a schematic diagram of an electrode structure provided in an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of the structure of an adhesive protection device provided in Embodiment 1 of this utility model;

[0026] Figure 4 This is a schematic diagram of the working state of an adhesive protection device provided in Embodiment 1 of this utility model;

[0027] Figure 5 This is a schematic diagram of the working state of the adhesive protection device provided in Embodiment 1 of this utility model. Figure Two ;

[0028] Figure 6 This is a schematic diagram of an electrode product manufactured using an adhesive protection device provided in Embodiment 1 of this utility model;

[0029] Figure 7 This is a schematic diagram of the structure of an adhesive protection device provided in Embodiment 2 of this utility model;

[0030] Figure 8 This is a schematic diagram of the adhesive protection device provided in Embodiment 3 of this utility model;

[0031] Figure 9 This is a schematic diagram of an electrode product manufactured using an adhesive protection device provided in Embodiments 2 and 3 of this utility model;

[0032] Figure 10 This is a three-dimensional schematic diagram of an adhesive applicator provided in an embodiment of the present utility model;

[0033] Figure 11 This is a front view of an adhesive applicator provided in an embodiment of the present invention:

[0034] Figure 12 This is a rear view of an adhesive applicator provided in an embodiment of the present utility model.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Adhesive application mechanism; 11. First adhesive application mechanism; 12. Second adhesive application mechanism; 13. Third adhesive application mechanism; 101. First adsorption component; 102. Second adsorption component; 2. Electrode; 21. First electrode; 22. Second electrode; 3. Correction mechanism; 31. First correction mechanism; 32. Second correction mechanism; 4. Adhesive pressing mechanism; 5. Cutting mechanism; 61. First coat of adhesive; 62. Second coat of adhesive; 63. Third coat of adhesive; 71. Head; 72. First corner point 73. Second corner point; 74. Tail end; 81. Frame; 82. Film roll; 83. Auxiliary roller; 84. Glue pressing module; 85. Cutting module; 86. Glue pulling module; 87. Glue applying module; 88. Glue strip; 841. Glue pressing cylinder; 842. Glue pressing rod; 843. Glue pressing roller; 844. Positioning component; 861. Glue pulling screw; 862. Glue pulling cylinder; 863. Glue pulling roller; 871. Glue applying screw; 872. Glue applying cylinder; 873. Glue applying plate. Detailed Implementation

[0037] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0038] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0041] It should be understood that although the steps in the flowcharts of the accompanying figures are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the accompanying figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0042] This utility model discloses a device for applying protective adhesive.

[0043] Please see Figure 1 One embodiment of the protective adhesive applicator provided in this utility model includes: an adhesive applicator 1, a cutting mechanism 5, and a correction mechanism 3;

[0044] The correction mechanism 3 is located between the adhesive applicator 1 and the cutting mechanism 5;

[0045] The adhesive application mechanism 1 includes an adsorption component, which is used to adsorb the adhesive strip and move it to the surface of the electrode 2 for adhesive application;

[0046] The cutting mechanism 5 is used to cut the electrode strip 2 and divide the electrode strip 2 into multiple electrode strips 2;

[0047] The correction mechanism 3 includes a detection sensor and a controller. The detection sensor is connected to the adsorption component through the controller. The detection sensor is used to detect the position of the electrode 2 after the cutting operation of the cutting mechanism 5. The controller is used to adjust the position of the adsorption component according to the position information of the electrode 2 before the adhesive application mechanism 1 applies the adhesive, so that the adsorption component is aligned with the electrode 2.

[0048] Understandably, in specific implementation, by setting a correction mechanism 3 between the cutting mechanism 5 and the adhesive application mechanism 1, when the cutting mechanism 5 causes the electrode material 2 to shift, the detection sensor in the correction mechanism 3 can obtain the accurate position of the electrode 2, and adjust the position of the adsorption component in the adhesive application mechanism 1 through the controller, so that the adsorption component in the adhesive application mechanism 1 is aligned with the electrode 2, ensuring the adhesive application accuracy. During the cutting process of the electrode 2, burrs, sharp edges or minor damage may occur on the edges. These defects may cause the electrode 2 to scratch the separator in subsequent processing, thereby causing safety problems such as internal short circuits in the battery. In this embodiment, by setting a cutting mechanism before the adhesive application mechanism 1, the head 71 of the electrode 2 is cut first, and then the head 71 is adhesively applied, so that the head and edge of the electrode 2 are fully wrapped, avoiding direct contact between the edge of the electrode 2 and other components, reducing the risk of battery failure caused by edge problems.

[0049] In a more specific embodiment, the adsorption element is a suction cup.

[0050] In a more specific embodiment, the adhesive application mechanism 1 includes a first adsorption member 101 and a second adsorption member 102, which are arranged opposite to each other. The first adsorption member 101 and the second adsorption member 102 are located on the upper and lower sides of the electrode 2, respectively. The first adsorption member 101 is used to adsorb the adhesive strip and move it to one side of the electrode 2 for adhesive application, and the second adsorption member 102 is used to adsorb the adhesive strip and move it to the other side of the electrode 2 for adhesive application.

[0051] Understandably, in specific implementation, this embodiment uses a first adsorption member 101 and a second adsorption member 102 arranged opposite to each other. Both the first adsorption member 101 and the second adsorption member 102 are set on the adhesive application mechanism 1. The first adsorption member 101 adsorbs the adhesive strip and moves it to the front side of the electrode 2 for adhesive application, and the second adsorption member 102 adsorbs the adhesive strip and moves it to the back side of the electrode 2 for adhesive application. This ensures that the front and back sides of the electrode 2 can be accurately adhesively applied at the same time, greatly improving the efficiency and quality of adhesive application.

[0052] In a more specific embodiment, the controller in the correction mechanism 3 adjusts the position of the adsorption element via a servo motor.

[0053] In a more specific embodiment, the detection sensor is an infrared sensor.

[0054] It should be noted that when the cutting mechanism 5 in this embodiment cuts the electrode 2 strip, it may cause the electrode 2 material to shift in position along its length. The position of the electrode 2 is obtained by an infrared sensor before the electrode 2 enters the adhesive bonding mechanism, and then the controller controls the adsorption component to adjust and move along the length of the electrode 2 according to the position of the electrode 2.

[0055] Please see Figure 6 In this embodiment, the adhesive is applied to the wound battery cell electrode sheet. The coating layer is prone to peeling off at the two corners of the first coil and at the head 71 of the electrode sheet 2, leading to a short circuit in the battery cell and causing quality issues. The adhesive application device applies a second layer of adhesive to both sides at the first corner point 72 of the first coil of the electrode sheet 2, a third layer of adhesive to both sides at the second corner point 73 of the first coil of the electrode sheet 2, and a first layer of adhesive to both sides of the head 71 of the electrode sheet 2.

[0056] In a more specific embodiment, two or three adhesive application mechanisms are included, wherein the distance between the center points of the adsorption elements of two adjacent adhesive application mechanisms is equal to the distance between the two corner points of the first ring of the electrode 2, so as to achieve synchronous adhesive application at the two corner points of the electrode 2.

[0057] Understandably, in practical implementation, by aligning the distance between the center points of the adsorption components of two adjacent adhesive application mechanisms with the distance between the two corner points of the first ring of electrode 2, synchronous adhesive application at the two corner points can be achieved. The two adhesive application mechanisms can simultaneously apply adhesive to the two corner points of electrode 2, instead of applying adhesive to one corner point first and then moving the adhesive application mechanism to the other. This synchronous operation significantly saves the total adhesive application time and improves production efficiency. In large-scale production, the cumulative reduction in adhesive application time per electrode 2 can significantly increase overall output. Furthermore, the corner point positions of electrode 2 are fixed and critical adhesive application locations during production. When the distance between the center points of the adsorption components of the adhesive application mechanisms is equal to the distance between the corner points of electrode 2, the adhesive application mechanisms can directly align with the two corner points of electrode 2 after initial setup. This eliminates the need for complex control systems or manual intervention to adjust the position of the adhesive application mechanisms to accommodate the corner points of electrode 2 when the distances are mismatched, reducing the time and effort spent on positioning.

[0058] In a more specific embodiment, the cutting mechanism 5 is positioned before the adhesive applicator for attaching the head 71 adhesive strip. It is understood that the electrode 2 is typically thin and flexible. If it requires a long transport route after cutting to reach the adhesive application position, the electrode 2 may deform during transport due to factors such as conveyor belt friction, wind, and equipment vibration, resulting in bending or wrinkling. These deformations affect the flatness and accuracy of the adhesive application, leading to loose adhesive strip adhesion, or even defects such as bubbles or curling edges. Therefore, in this embodiment, the cutting mechanism 5 is positioned before the adhesive applicator for attaching the head 71 adhesive strip, facilitating adhesive application immediately after cutting and avoiding the problem of an excessively long transport route.

[0059] In a more specific embodiment, the adhesive applicator is provided with an adhesive pressing mechanism 4 on the side of the adhesive applicator away from the correction mechanism 3.

[0060] Understandably, in practice, the pressure is applied to the adhesive strip and the electrode 2 by the pressing mechanism 4, which presses the adhesive strip tightly onto the surface of the electrode 2, so that the adhesive strip and the electrode 2 are more tightly bonded, increasing the intermolecular forces and thus significantly improving the bonding strength. This ensures that the adhesive strip will not easily fall off during the subsequent processing, transportation and use of the electrode 2, thus guaranteeing the stability and reliability of the product.

[0061] In a more specific embodiment, the adhesive pressing mechanism 4 includes a first roller and a second roller, with a gap between the first roller and the second roller for passing through the electrode 2 when the first roller and the second roller rotate, so that the adhesive strip on the electrode 2 is pressed onto the surface of the electrode 2.

[0062] Understandably, during implementation, the rollers rotate and compact the material, ensuring continuous contact between the roller surface and the rubber strip and electrode 2. This allows for sustained pressure application across the entire contact surface, guaranteeing uniform force on the rubber strip at all locations and resulting in a tighter and more uniform bond between the rubber strip and electrode 2. Furthermore, the rolling and squeezing action of the rollers on the rubber strip and electrode 2 gradually expels air, effectively removing air from between the rubber strip and electrode 2 and reducing the possibility of air bubbles remaining.

[0063] This utility model discloses a protective adhesive application system, including a conveying device and a protective adhesive application device. The conveying device is disposed between the adhesive application mechanism, the cutting mechanism 5, and the correction mechanism 3 (not shown in the figure). The conveying device is used to convey the electrode material 2 to the adhesive application mechanism, the cutting mechanism 5, and the correction mechanism 3. The conveying device is a roller conveying structure.

[0064] Understandably, in practice, the roller surface is usually quite smooth, and the contact between it and the electrode 2 is rolling friction. Roller conveying causes less damage to the surface of the electrode 2, which is beneficial to protecting the performance and quality of the electrode 2.

[0065] This utility model provides three specific embodiments of the protective adhesive application device for... Figure 2 The electrode 2 shown is coated with adhesive. The coating layer is prone to peeling off at the first corner point 72, the second corner point 73, and the head 71 of the first ring of the electrode 2, leading to short circuits in the battery cell and causing quality problems. This utility model's protective adhesive application device applies a second layer of adhesive 62 to both sides of the first corner point 72 of the electrode 2, a third layer of adhesive 63 to both sides of the second corner point 73 of the electrode 2, and a first layer of adhesive 61 to both sides of the head 71 of the electrode 2.

[0066] Example 1:

[0067] Please see Figure 3 Along the conveying direction of electrode sheet 2, a first correction mechanism 31, a first adhesive application mechanism 11, a second adhesive application mechanism 12, a cutter mechanism 5, a second correction mechanism 32, a third adhesive application mechanism 13, and a pressing mechanism 4 are arranged sequentially.

[0068] The first adhesive applicator 11 and the second adhesive applicator 12 are used to apply the second layer of adhesive 62 at the first corner point 72 and the third layer of adhesive 63 at the second corner point 73 of the electrode 2, respectively. The third adhesive applicator 13 is used to apply the first layer of adhesive 61 at the head 71 of the electrode 2.

[0069] A cutting mechanism 5 and a second correction mechanism 32 are sequentially arranged between the second adhesive application mechanism 12 and the third adhesive application mechanism 13. The detection sensor of the second correction mechanism 32 is connected to the adsorption component of the third adhesive application mechanism 13 via a control sensor. A first correction mechanism 31 is arranged on the side of the first adhesive application mechanism 11 away from the second adhesive application mechanism 12. The detection sensor of the first correction mechanism 31 is connected to the adsorption component of the first adhesive application mechanism 11 and the adsorption component of the second adhesive application mechanism 12 via a controller.

[0070] like Figures 3-6 As shown, the working principle of this embodiment is as follows:

[0071] S11, the first correction mechanism 31 identifies the initial position of the electrode 2 strip and adjusts the position of the adsorption components of the first adhesive application mechanism 11 and the second adhesive application mechanism 12 to align with the electrode 2;

[0072] S12. When the first adhesive applicator 11 and the second adhesive applicator 12 are respectively aligned with the adhesive applicator of the first electrode 21, the first adhesive applicator 11 and the second adhesive applicator 12 perform adhesive applicator work at the same time. The first adhesive applicator 11 applies the second layer of adhesive 62 at the first corner point 72 of the first electrode 21, and the second adhesive applicator applies the third layer of adhesive 63 at the second corner point 73 of the first electrode 21.

[0073] S13. When the first adhesive application mechanism 11 and the second adhesive application mechanism 12 are respectively aligned with the adhesive application area of ​​the second electrode 22, the first adhesive application mechanism 11 and the second adhesive application mechanism 12 perform adhesive application work simultaneously. The first adhesive application mechanism 11 applies the third layer of adhesive 63 at the second corner point 73 of the second electrode 22, and the second adhesive application mechanism 12 applies the second layer of adhesive 62 at the first corner point 72 of the second electrode 22.

[0074] S14. When the head 71 of the second electrode 22 and the first electrode 21 is conveyed to the cutting mechanism 5, the cutting mechanism 5 cuts the electrode 2 material, and the head 71 of the first electrode 21 separates from the head 71 of the second electrode 22.

[0075] S15, the second correction mechanism 32 identifies the position of the electrode 2 material strip and adjusts the position of the adsorption element of the third adhesive applicator 13 to align with the electrode 2;

[0076] S16. When the third adhesive applicator 13 is aligned with the cut-off portion of the first electrode 21 and the second electrode 22, the third adhesive applicator 13 performs adhesive applicator work, and the third adhesive applicator 13 applies the first layer of adhesive 61 to the head 71 of the first electrode 21 and the second electrode 22.

[0077] S17, the adhesive pressing mechanism 4 rolls each layer of adhesive one by one, thus completing one round of adhesive application.

[0078] Understandably, in specific implementation, firstly, the first adhesive application mechanism 11 and the second adhesive application mechanism 12 are used to apply the second layer of adhesive 62 at the first corner point 72 and the third layer of adhesive 63 at the second corner point 73 of the electrode sheet 2, and the third adhesive application mechanism 13 is used to apply the first layer of adhesive 61 at the head 71 of the electrode sheet 2. By setting the first adhesive application mechanism 11 and the second adhesive application mechanism 12 before the third adhesive application mechanism 13, adhesive is applied to the first corner point 72 and the second corner point 73 of the electrode sheet 2 first, and then the head 71 of the electrode sheet 2 is cut and adhesive is applied. This ensures that the offset of the cutting mechanism 5 to the electrode sheet 2 will not affect the adhesive application at the first corner point 72 and the second corner point 73 of the electrode sheet 2. The first adhesive application mechanism 11 and the second adhesive application mechanism 12 do not need to adjust the adsorption component due to the offset caused by the operation of the cutting mechanism, thus improving the adhesive application efficiency at the first corner point 72 and the second corner point 73 of the electrode sheet 2; secondly, as Figure 5 As shown, in this embodiment, the heads 71 ​​of the first electrode 21 and the second electrode 22 after processing share a single layer of adhesive, which can save adhesive strip material.

[0079] It should be noted that after the adhesive application device in this example applies adhesive to the first electrode 21 and the second electrode 22, the heads 71 ​​of the first electrode 21 and the second electrode 22 are connected by the first layer of adhesive 61. A cutting device (not shown in the figure) is also provided at the output end of the adhesive application device to cut the first layer of adhesive 61 along the gap between the first electrode 21 and the second electrode 22, so that the heads 71 ​​of the first electrode 21 and the heads 71 ​​of the second electrode 22 are completely separated.

[0080] Example 2:

[0081] Please see Figure 7 and Figure 9 Along the conveying direction of the electrode sheet 2, a first adhesive application mechanism 11, a second adhesive application mechanism 12, and a third adhesive application mechanism 13 are arranged sequentially. The first adhesive application mechanism 11 is used to apply the first layer of adhesive 61 at the head 71 of the electrode sheet 2, the second adhesive application mechanism 12 is used to apply the third layer of adhesive 63 at the second corner point 73 of the electrode sheet 2, and the third adhesive application mechanism 13 is used to apply the second layer of adhesive 62 at the first corner point 72 of the electrode sheet 2. A cutting mechanism 5 and a correction mechanism 3 are arranged on the side of the first adhesive application mechanism 11 away from the second adhesive application mechanism 12. The detection sensor of the correction mechanism 3 is connected to the adsorption components of the first adhesive application mechanism 11, the second adhesive application mechanism 12, and the third adhesive application mechanism 13 through a controller.

[0082] The working principle of this embodiment is as follows:

[0083] S21. When the head 71 of the electrode 2 is conveyed to the cutting mechanism 5, the cutting mechanism 5 cuts the material of the electrode 2, and the head 71 of the second electrode 22 separates from the tail 74 of the first electrode 21.

[0084] S22. The correction mechanism 3 identifies the position of the electrode 2 material strip and adjusts the position of the adsorption components of the first adhesive application mechanism 11, the second adhesive application mechanism 12, and the third adhesive application mechanism 13 to align with the electrode 2.

[0085] S23. When the first adhesive applicator 11 is aligned with the cut-off portion of the first electrode 21 and the second electrode 22, the first adhesive applicator 11 applies adhesive to the tail 74 of the first electrode 21 and the head 71 of the second electrode 22. The first adhesive applicator 11 completes the application of the first layer of adhesive 61 to the head 71 of the second electrode 22.

[0086] S24. When the second adhesive application mechanism 12 and the third adhesive application mechanism 13 are respectively aligned with the adhesive application area of ​​the second electrode 22, the second adhesive application mechanism 12 and the third adhesive application mechanism 13 perform adhesive application work simultaneously. The second adhesive application mechanism 12 applies the third layer of adhesive 63 to the second corner point 73 of the second electrode 22, and the third adhesive application mechanism 13 applies the second layer of adhesive 62 to the first corner point 72 of the second electrode 22.

[0087] S25, the adhesive pressing mechanism 4 rolls each layer of adhesive one by one, thus completing one round of adhesive application.

[0088] Understandably, in specific implementation, by setting the cutting mechanism 5 and the correction mechanism 3 before the first adhesive application mechanism 11, and connecting the correction mechanism 3 to the first adhesive application mechanism 11, the second adhesive application mechanism 12 and the third adhesive application mechanism 13, the entire device can be adjusted by using only one correction mechanism 3 to adjust the three adhesive application mechanisms, which simplifies the structure of the adhesive application protection device and saves equipment costs.

[0089] It should be noted that after the adhesive application device in this example applies adhesive to the first electrode 21 and the second electrode 22, the tail 74 of the first electrode 21 and the head 71 of the second electrode 22 are connected by the first layer of adhesive 61. A cutting device (not shown in the figure) is also provided at the output end of the adhesive application device to cut the first layer of adhesive 61 along the gap between the first electrode 21 and the second electrode 22, so that the tail 74 of the first electrode 21 and the head 71 of the second electrode 22 are completely separated.

[0090] Example 3:

[0091] Please see Figure 8 and Figure 9A first adhesive application mechanism 11 and a second adhesive application mechanism 12 are sequentially arranged along the conveying direction of the electrode sheet 2. The first adhesive application mechanism 11 is used to apply the first layer of adhesive 61 at the head 71 of the electrode sheet 2 and the second layer of adhesive 63 at the second corner point 73 of the electrode sheet 2. The second adhesive application mechanism 12 is used to apply the second layer of adhesive 62 at the first corner point 72 of the electrode sheet 2. A cutting mechanism 5 and a correction mechanism 3 are arranged on the side of the first adhesive application mechanism 11 away from the second adhesive application mechanism 12. The detection sensor of the correction mechanism 3 is connected to the adsorption components of the first adhesive application mechanism 11 and the second adhesive application mechanism 12 respectively through a controller.

[0092] The working principle of this embodiment is as follows:

[0093] S31. When the head 71 of the electrode 2 is conveyed to the cutting mechanism 5, the cutting mechanism 5 cuts the electrode 2 material, and the head 71 of the second electrode 22 is separated from the tail 74 of the first electrode 21.

[0094] S32, The correction mechanism 3 identifies the position of the electrode 2 material strip and adjusts the position of the adsorption element of the first adhesive application mechanism 11 and the second adhesive application mechanism 12 to align with the electrode 2;

[0095] S33. When the first adhesive applicator 11 is aligned with the cut portion of the first electrode 2 and the second electrode 2, the first adhesive applicator 11 performs adhesive applicator work on the tail 74 of the first electrode 21 and the head 71 of the second electrode 22. The first adhesive applicator 11 completes the application of the first layer of adhesive 61 to the head 71 of the second electrode 22.

[0096] S34. When the first adhesive applicator 11 and the second adhesive applicator 12 are respectively aligned with the adhesive application area of ​​the second electrode 22, the first adhesive applicator and the second adhesive applicator perform adhesive application work at the same time. The first adhesive applicator applies the second layer of adhesive 63 at the second corner point 73 of the second electrode 2, and the third adhesive applicator applies the second layer of adhesive 62 at the first corner point 72 of the second electrode 22.

[0097] S35, the adhesive pressing mechanism 4 rolls each layer of adhesive one by one, thus completing one round of adhesive application.

[0098] Understandably, in specific implementation, by sharing the first adhesive layer 61 at the head 71 of the first adhesive application mechanism 11 and the third adhesive layer 63 at the second corner point 73, the entire device only needs to use one correction mechanism 3 and two adhesive application mechanisms, simplifying the structure of the adhesive application protection device and saving equipment costs.

[0099] It should be noted that after the adhesive application device of this embodiment applies adhesive to the first electrode 21 and the second electrode 22, the tail 74 of the first electrode 21 and the head 71 of the second electrode 22 are connected by the first layer of adhesive 61. A cutting device (not shown in the figure) is also provided at the output end of the adhesive application device to cut the first layer of adhesive 61 along the gap between the first electrode 21 and the second electrode 22, so that the tail 74 of the first electrode 21 and the head 71 of the second electrode 22 are completely separated.

[0100] In a more specific embodiment, such as Figures 10-12 As shown, the adhesive applicator 1 includes a frame 81 and a roll of adhesive 82, multiple auxiliary rollers 83, an adhesive pressing module 84, a cutting module 85, an adhesive pulling module 86 and an adhesive applicator 87 arranged sequentially on the frame 81 along the conveying direction of the adhesive strip 88.

[0101] Film roll 82 is located at one end of frame 81, and pressure bonding module 84 is located in the middle of frame 81. Multiple auxiliary rollers 83 are arranged between pressure bonding module 84 and film roll 82. In practice, adhesive strip 88 extends from film roll 82, with its middle section wound around multiple auxiliary rollers 83. The end of adhesive strip 88 is fixed to pressure bonding module 84. The auxiliary rollers 83 control the tension of adhesive strip 88 during transport by adjusting the distance, angle, or pressure between the rollers, preventing excessive tension from causing stretching and deformation of adhesive strip 88 or insufficient tension from causing loosening and wrinkling of adhesive strip 88.

[0102] Both the glue-pulling module 86 and the glue-applying module 87 are located on the side of the pressure module 84 away from the auxiliary roller 83. The glue-pulling module 86 is located on the glue-applying surface near the glue-applying module 87, and the cutter module 85 is located at the glue outlet of the pressure module 84. In practice, the glue-pulling module 86 and the glue-applying module 87 move together to the glue outlet of the pressure module 84. After the glue-pulling module 86 presses the glue strip 88 onto the glue-applying surface of the glue-applying module 87, the glue-pulling module 86 and the glue-applying module 87 move away from the pressure module 84 and pull out the glue strip 88. The pulled-out glue strip 88 adheres to the adhesion surface of the glue-applying module 87. After a set length of glue strip 88 is pulled out, the pressure module 84 presses the glue strip 88 firmly, the cutter module 85 cuts the glue strip 88, and the glue-pulling module 86 disengages from the glue-applying module 87. This completes the glue preparation work of the glue-applying module 87.

[0103] In a more specific embodiment, the adhesive pressing module 84 includes an adhesive pressing cylinder 841, an adhesive pressing rod 842, an adhesive pressing roller 843, and a positioning member 844. The positioning member 844 is fixed on the frame 81. The adhesive pressing rod 842 is disposed near the positioning surface of the positioning member 844 for positioning the adhesive strip 88. The adhesive pressing roller 843 is connected to one end of the adhesive pressing rod 842, and the adhesive pressing roller 843 can disengage from the positioning member 844. The other end of the adhesive pressing rod 842 is connected to the adhesive pressing cylinder 841, which controls the movement of the adhesive pressing rod 842 to move the adhesive pressing roller 843 closer to or away from the positioning surface of the positioning member 844. Yes, in specific implementation, when the glue-pulling module 86 and the glue-applying module 87 move together away from the glue-pressing module 84 and pull out the glue strip 88, the glue-pressing cylinder 841 controls the glue-pressing rod 842 to move the glue-pressing roller 843 away from the positioning member 844, so that the glue strip 88 can be pulled out from the glue-pressing module 84; when the glue strip 88 is pulled out to a set length, the glue strip 88 module and the glue-applying module 87 stop moving. At this time, the glue-pressing cylinder 841 controls the glue-pressing rod 842 to move the glue-pressing roller 843 close to the positioning member 844 to press the glue strip 88, stabilizing the glue strip 88 so that the cutting module 85 can cut the glue strip 88.

[0104] In a more specific embodiment, the adhesive application module 86 includes an adhesive application roller 863, an adhesive application screw 861, and an adhesive application cylinder 862. Both the adhesive application screw 861 and the adhesive application cylinder 862 are connected to the adhesive application roller 863. The adhesive application screw 861 is used to control the movement of the adhesive application roller 863 towards or away from the adhesive application module 84. The adhesive application cylinder 862 is used to control the adhesive application roller 863 to approach and press the adhesive strip 88 against the adsorption surface of the adhesive application module 87, or to control the adhesive application roller 863 to move away from the adsorption surface of the adhesive application module 87, so as to avoid affecting the adhesive application work of the adhesive application module 87.

[0105] In a more specific embodiment, the adhesive application module 87 includes an adhesive application plate 873, an adhesive application screw 871, and an adhesive application cylinder 872. Both the adhesive application screw 871 and the adhesive application cylinder 872 are connected to the adhesive application plate 873. The adhesive application screw 871 is used to control the adhesive application plate 873 to move closer to or away from the adhesive application module 84, and the adhesive application cylinder 872 is used to control the adhesive application plate 873 to move up and down to move closer to or away from the surface of the electrode sheet 2.

[0106] In a more specific embodiment, the adsorption surface of the adhesive plate 873 that contacts the adhesive strip 88 is provided with a plurality of adsorption holes.

[0107] In a more specific embodiment, the adhesive application mechanism 1 includes two sets of film rolls 82, an auxiliary roller 83, an adhesive pressing module 84, a cutting module 85, an adhesive pulling module 86, and an adhesive application module 87 symmetrically distributed on the frame 81, which are used to apply adhesive to the upper and lower surfaces of the electrode sheet 2, respectively.

[0108] It should be noted that the adhesive plate 873 is the adsorption component in the above embodiments.

[0109] In a more specific embodiment, the adhesive application screw 871 and the adhesive pulling screw 861 are both connected to different servo motors.

[0110] It should be noted that the terms used to describe positional relationships in the above examples and accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. The various embodiments of this utility model described above are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A device for applying a protective adhesive, characterized in that, include: Along the conveying direction of the electrode material belt, there are sequentially arranged a glue-applying mechanism, a cutting mechanism, and a deviation correction mechanism; The correction mechanism is located between the adhesive application mechanism and the cutting mechanism; The adhesive application mechanism includes an adsorption element, which is used to adsorb the adhesive strip and move it to the surface of the electrode for adhesive application. The cutting mechanism is used to cut the electrode strip and divide the electrode strip into multiple electrodes. The correction mechanism includes a detection sensor and a controller. The detection sensor is connected to the adsorption element through the controller. The detection sensor is used to detect the position of the electrode. The controller is used to adjust the position of the adsorption element according to the position of the electrode before the adhesive is applied by the adhesive application mechanism, so that the adsorption element is aligned with the electrode.

2. The device of claim 1, wherein the adhesive is a pressure sensitive adhesive. It includes two or three adhesive application mechanisms, wherein the distance between the center points of the adsorption components of two adjacent adhesive application mechanisms is equal to the distance between the two corner points of the first ring of the electrode, so as to achieve synchronous adhesive application at the two corner points of the electrode.

3. The device of claim 2, wherein the adhesive is a pressure sensitive adhesive. The cutting mechanism is located in front of the adhesive applicator used for applying adhesive to the electrode head.

4. The device of claim 3, wherein the adhesive is a pressure sensitive adhesive. A first adhesive application mechanism, a second adhesive application mechanism, and a third adhesive application mechanism are sequentially arranged along the electrode strip conveying direction. The first and second adhesive application mechanisms are used to apply adhesive strips at the two corner points of the first ring of the electrode, respectively, and the third adhesive application mechanism is used to apply adhesive strips at the head of the electrode. A cutting mechanism and a second correction mechanism are sequentially arranged between the second and third adhesive application mechanisms. The detection sensor of the second correction mechanism is connected to the adsorption component of the third adhesive application mechanism through a control sensor.

5. The device of claim 4, wherein the adhesive is a pressure sensitive adhesive. A first correction mechanism is provided on the side of the first adhesive applicator away from the second adhesive applicator. The detection sensor of the first correction mechanism is connected to the adsorption component of the first adhesive applicator and the adsorption component of the second adhesive applicator respectively through a controller.

6. The device of claim 3, wherein the adhesive is a pressure sensitive adhesive. A first adhesive application mechanism, a second adhesive application mechanism, and a third adhesive application mechanism are sequentially arranged along the electrode material conveying direction; the first adhesive application mechanism is used to apply adhesive strips at the head of the electrode; a cutting mechanism and a correction mechanism are arranged on the side of the first adhesive application mechanism away from the second adhesive application mechanism, and the detection sensor of the correction mechanism is connected to the adsorption components of the first adhesive application mechanism, the second adhesive application mechanism, and the third adhesive application mechanism respectively through a controller.

7. The device of claim 3, wherein the adhesive is a pressure sensitive adhesive. A first adhesive applicator and a second adhesive applicator are sequentially arranged along the electrode sheet conveying direction. The first adhesive applicator is used to apply adhesive strips at the head of the electrode sheet and adhesive strips at the second corner of the electrode sheet. A cutting mechanism and a correction mechanism are arranged on the side of the first adhesive applicator away from the second adhesive applicator. The detection sensor of the correction mechanism is connected to the adsorption components of the first adhesive applicator and the second adhesive applicator through a controller.

8. The device of any one of claims 1-7, wherein the protective adhesive device is a bandage. The adhesive application mechanism includes a first adsorption element and a second adsorption element. The first adsorption element and the second adsorption element are arranged opposite to each other and are located on both sides of the electrode sheet. The first adsorption element is used to adsorb the adhesive strip and move it to one side of the electrode sheet for adhesive application, and the second adsorption element is used to adsorb the adhesive strip and move it to the other side of the electrode sheet for adhesive application.

9. The device of any one of claims 1-7, wherein the protective adhesive device is a bandage. The adhesive application mechanism comprises a frame and an adhesive roll, a plurality of auxiliary rollers, a glue pressing module, a cutter module, a glue pulling module and an adhesive application module arranged in sequence along the adhesive tape conveying direction on the frame; The adhesive roll is arranged at one end of the frame, the glue pressing module is arranged at the middle of the frame, the plurality of auxiliary rollers are arranged between the glue pressing module and the adhesive roll, the adhesive tape extends from the adhesive roll, the middle of the adhesive tape is wound on the plurality of auxiliary rollers, and the end of the adhesive tape is fixed on the glue pressing module; The glue pulling module and the adhesive application module are arranged on the side of the glue pressing module away from the auxiliary rollers, the glue pulling module is arranged close to the adhesive application surface of the adhesive application module, the glue pulling module is used to press the end of the adhesive tape at the glue outlet of the glue pressing module on the adsorption surface of the adhesive application module and move away from the glue pressing module together with the adhesive application module to realize pulling out of the adhesive tape from the glue pressing module; The cutter module is arranged at the glue outlet of the glue pressing module and is used to cut the adhesive tape after the adhesive tape is pulled out from the glue pressing module by a set length.

10. The device of claim 1, wherein the protective adhesive is a double-sided tape. The adhesive application mechanism is provided with a glue pressing mechanism on the side away from the deviation rectifying mechanism.

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