A rubber bonding device and a rubber bonding method

Abstract

The application discloses a rubber sticking device and a rubber sticking method. The rubber sticking device comprises a unwinding mechanism, a rubber pulling mechanism, a rubber sticking mechanism, a cutting mechanism and a rubber folding assembly. The rubber pulling mechanism is used for pulling one end of the rubber paper in a first direction. The rubber sticking mechanism comprises a driving assembly and a suction head. The suction head is connected with the driving assembly. The cutting mechanism is arranged between the rubber pulling mechanism and the unwinding mechanism. The rubber folding assembly is arranged between the rubber pulling mechanism and the cutting mechanism. The rubber folding assembly comprises a rubber folding assembly. The driving assembly can drive the suction head to insert the rubber paper between the rubber pulling mechanism and the cutting mechanism into the rubber folding assembly, so that the rubber paper is bent. The technical scheme of the embodiment can solve the problem that the rubber paper interferes with the battery during rubber sticking by pre-bending the rubber paper to be stuck, and effectively avoids the adverse phenomena of inaccurate rubber sticking and position deviation of the battery.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing technology, and in particular to an adhesive application device and method. Background Technology

[0002] Currently, in the process of packaging multi-cell batteries, insulating adhesive needs to be applied to the narrow space between adjacent cells. Generally, when the length of the insulating adhesive applied into the narrow space is greater than the width of the narrow space, the insulating adhesive will contact and adhere to both sides of the narrow space entrance. As the adhesive extends towards the bottom of the narrow space, the area on both sides of the narrow space entrance will continuously rub against the adhesive layer of the insulating adhesive. Due to the adhesion and friction between the cells on both sides of the narrow space and the insulating adhesive, the cells may shift in position, easily causing problems such as incomplete adhesive application and cell misalignment. Summary of the Invention

[0003] To address the aforementioned technical problems, the present invention provides an adhesive application device and an adhesive application method.

[0004] In a first aspect, embodiments of this application provide an adhesive applicator, comprising:

[0005] Unwinding mechanism, used for winding adhesive tape;

[0006] A tape-pulling mechanism is used to pull out one end of the adhesive tape.

[0007] The adhesive applicator includes a drive assembly and a suction head, wherein the suction head is connected to the drive assembly;

[0008] A cutting mechanism, located between the adhesive stretching mechanism and the unwinding mechanism, is used to cut the adhesive paper;

[0009] A folding mechanism is provided between the glue-pulling mechanism and the cutting mechanism, and the folding mechanism includes a folding component;

[0010] The drive assembly can drive the suction head to insert the adhesive paper located between the adhesive pulling mechanism (30) and the cutting mechanism into the folding assembly, so that the adhesive paper is bent.

[0011] In one embodiment, the folding assembly is a support roller arranged at intervals.

[0012] In one embodiment, the adhesive folding mechanism further includes spaced-apart limiting rings, with multiple limiting rings fitted on each of the support rollers, and a limiting groove is formed between adjacent limiting rings; the length of the limiting groove is greater than or equal to the width of the adhesive paper.

[0013] In one embodiment, a first driving member is further included, which is connected to one end of the support roller and is used to drive the support roller to move along a first direction to adjust the width between the support rollers.

[0014] In one embodiment, a second driving member is further included, which is connected to the support roller and is used to drive the support roller to move back and forth in a straight line along a second direction; the second direction intersects the first direction.

[0015] In one embodiment, the width of the suction head (42) and the spacing width of the support rollers satisfy the following relationship:

[0016] 0.167 <D1 / D2≤1

[0017] Wherein, D1 is the width of the suction head (42), and D2 is the spacing width of the support roller.

[0018] In one implementation, it further includes:

[0019] The substrate, the unwinding mechanism, the adhesive stretching mechanism, the driving assembly, and the cutting mechanism are all mounted on one side of the substrate;

[0020] The driving component includes:

[0021] Guide rails are mounted on the substrate;

[0022] The third driving component is slidably mounted on the guide rail, and the suction head is connected to the third driving component;

[0023] The third driving component is capable of reciprocating linearly along the first direction on the guide rail and can drive the suction head to reciprocate linearly along the second direction.

[0024] In one embodiment, the adhesive-pulling mechanism includes:

[0025] The fourth driving component is mounted on the substrate;

[0026] A clamping assembly is connected to the fourth drive member, and the clamping assembly has a clamping opening that can be opened or closed;

[0027] The fourth driving member can drive the clamping assembly to move back and forth in a straight line along the first direction.

[0028] In one embodiment, the cutting mechanism includes cutting units disposed on both sides of the adhesive paper, the cutting unit comprising:

[0029] The fifth driving component is fixed on the substrate;

[0030] The cutter is connected to the fifth driving component;

[0031] The fifth driving member can drive the cutter to move closer to or away from the adhesive paper.

[0032] Secondly, this application also provides an adhesive application method, including the following steps: pulling out one end of the adhesive paper so that the adhesive paper is distributed between the adhesive pulling mechanism and the cutting mechanism;

[0033] The suction head is driven to move toward the adhesive paper until it is inserted into the spaced support rollers, and the support rollers are driven to move along a first direction and / or a second direction to bend the adhesive paper to one side.

[0034] Reduce the air pressure in the cavity of the suction head to allow the bent adhesive paper to adhere to the outer periphery of the suction head, and then cut the bent adhesive paper.

[0035] The suction head is driven to transfer the bent adhesive paper to the adhesive application position for application.

[0036] Compared with the prior art, the technical solutions provided in this application have the following advantages:

[0037] By setting a folding component on one side of the adhesive tape and driving the suction head to insert into the folding component, the adhesive tape is pre-folded into an arc-shaped (or U-shaped) fold. The shaped adhesive tape is then transferred to the slit formed by the adjacent battery cells, and finally the adhesive tape is attached to the inner wall of the slit. This adhesive application method ensures that the adhesive layer of the adhesive tape does not contact the areas on both sides of the slit entrance. After the adhesive tape reaches the designated application position, it is flexibly attached to the inner wall of the slit, effectively avoiding the problems of incomplete adhesive application and battery cell misalignment. At the same time, it can prevent the adhesive tape from rubbing against the areas on both sides of the slit entrance, thus improving the quality of adhesive application. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of two adjacent battery cells bonded together with adhesive tape;

[0039] Figure 2 This is a schematic diagram of the structure of an adhesive applicator according to an embodiment of this application when the suction head is in the adhesive applicator position;

[0040] Figure 3 This is a schematic diagram of the structure of an adhesive applicator according to an embodiment of this application from another perspective;

[0041] Figure 4 This is a cross-sectional schematic diagram of the suction head in an adhesive applicator according to an embodiment of this application;

[0042] Figure 5 This is a schematic diagram of the suction head in an adhesive applicator according to an embodiment of this application;

[0043] Figure 6 This is a schematic diagram of the structure of the support roller in an adhesive applicator according to an embodiment of this application;

[0044] Figure 7This is a schematic diagram of another embodiment of the adhesive applicator according to an embodiment of this application;

[0045] Figure 8 This is a schematic diagram of a first driving member and a second driving member installed in an adhesive applicator according to an embodiment of this application;

[0046] Figure 9 This is a schematic diagram of the structure of an adhesive applicator according to an embodiment of this application when the suction head is in the adhesive folding position;

[0047] Figure 10 yes Figure 9 Enlarged view of point A in the middle;

[0048] Figure 11 This is a schematic diagram of the adhesive application mechanism in an adhesive application device according to an embodiment of this application;

[0049] Figure 12 This is a schematic diagram of the adhesive application device according to an embodiment of this application, showing the structure of the adhesive application mechanism.

[0050] Figure 13 This is a schematic diagram of the cutting mechanism in an adhesive applicator according to an embodiment of this application.

[0051] Numbering on the map:

[0052] 10', Battery cell; 11', Battery cell body; 12', Tab; 20', Gap;

[0053] 10. Unwinding mechanism; 11. Glue reel; 12. Guide roller;

[0054] 20. Adhesive tape;

[0055] 30. Adhesive pulling mechanism; 31. Fourth driving component; 32. Clamping assembly; 321. Grip; 322. Mounting base; 323. Sixth driving component; 324. First clamping arm; 325. Second clamping arm;

[0056] 40. Adhesive application mechanism; 41. Drive assembly; 411. Guide rail; 412. Third drive component; 42. Suction head; 421. Cavity; 422. Suction hole; 43. Fixing base;

[0057] 50. Cutting mechanism; 51. Cutting unit; 511. Fifth driving component; 512. Cutting blade;

[0058] 60. Folding mechanism; 61. Folding area; 62. Folding assembly; 63. Limiting ring; 64. Limiting groove;

[0059] 70. Substrate;

[0060] 80. First driving component;

[0061] 90. Second driving component;

[0062] 100. Mounting plate;

[0063] 200. Slide rail;

[0064] 300. Slider;

[0065] A. First direction; B. Second direction; L. Length of the limiting groove; S. Glue preparation position; D1. Width of the suction head; D2. Spacing width of the support rollers. Detailed Implementation

[0066] To provide a clearer understanding of the technical features, objectives, and effects of this invention, specific embodiments are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or element referred to must have a specific orientation; therefore, they should not be construed as limitations on this invention.

[0067] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0068] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0069] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0070] In this application, "multiple" means two or more (including two).

[0071] In related technologies, the battery cell 10' includes a battery cell body 11' and a tab 12' connected to the battery cell body 11'. The tab 12' is connected to one side of the battery cell body 11' facing each other and forms a step with the battery cell body 11'. Figure 1As shown, two adjacent battery cells 10' are spaced apart, forming a gap 20' between the two battery cell bodies 11' and the two tabs 12'. To bond the two adjacent battery cells 10', insulating tape needs to be bent into a U-shape, and then the U-shaped tape is inserted into the gap 20', so that the bottom of the insulating tape is bonded to the tab 12' and the side of the insulating tape is bonded to the battery cell body 11', thereby preventing short circuits inside the battery cell. This embodiment of the present disclosure provides an adhesive applicator that can pre-bend insulating tape into a U-shape and accurately transfer the bent U-shaped tape to the gap 20' for bonding, which can solve the problem of interference between the insulating tape and the battery cell during adhesive application, and effectively avoid the problems of incomplete adhesive application and battery cell position misalignment.

[0072] Please refer to the above as well. Figures 2-3 The adhesive applicator includes an unwinding mechanism 10, an adhesive pulling mechanism 30, an adhesive applicator 40, a cutting mechanism 50, and an adhesive folding mechanism 60.

[0073] Specifically, the unwinding mechanism 10 is used to wind the adhesive tape 20; the adhesive pulling mechanism 30 is used to pull one end of the adhesive tape 20 along a first direction (refer to...). Figure 3 The adhesive tape 20 is pulled out in the first direction (A direction) so that it is distributed in the adhesive preparation position S along the first direction; the adhesive application mechanism 40 includes a drive assembly 41 and a suction head 42, the suction head 42 being connected to the drive assembly 41; the cutting mechanism 50 is disposed in the first direction between the adhesive preparation position S and the unwinding mechanism 10, and is used to cut the adhesive tape 20; the folding mechanism 60 is disposed in the first direction between the adhesive pulling mechanism 30 and the cutting mechanism 50, and has a folding area 61. When the suction head 42 is in the adhesive preparation position S, the suction head 42 is inserted into the folding area 61 so that the adhesive tape 20 located between the adhesive pulling mechanism 30 and the cutting mechanism 50 is bent in the insertion direction of the suction head 42.

[0074] In this embodiment, the adhesive pulling mechanism 30 pulls one end of the adhesive paper 20 wound on the unwinding mechanism 10 out along the first direction, so that the adhesive paper 20 is distributed along the first direction on the adhesive preparation position S. Then, the drive assembly 41 drives the suction head 42 to move to the adhesive preparation position S and inserts the suction head 42 into the folding area 61, so that the adhesive paper 20 located between the adhesive pulling mechanism 30 and the cutting mechanism 50 is bent to form a U-shaped cavity. Then, the suction head 42 is used to adsorb the bent adhesive paper 20 onto the outer periphery of the suction head 42. Then, the cutting mechanism 50 cuts the bent portion of the adhesive paper 20. Finally, the suction head 42, together with the adhesive paper adsorbed on its outer periphery, is driven to move to the gap 20' between the two battery cells 10', and the air pressure inside the suction head 42 is changed to press the adhesive paper 20 toward the outer periphery against the battery cell, thereby achieving precise pasting of the adhesive paper 20 between the two battery cells.

[0075] It should be noted that the "folding area" refers to the area where the suction head can be inserted. It can be a groove with one end open on the folding component, or a cavity with two open ends connected by two adjacent support rollers in the folding component. As long as it can allow the suction head to push the adhesive paper located between the adhesive pulling mechanism and the cutting mechanism into the folding area, there is no limitation on this.

[0076] Referring to the figure, exemplarily, the suction head 42 in this embodiment has an internal cavity 421 for connecting to an air pump to achieve air pressure changes, and the outer peripheral wall of the suction head 42 has multiple adsorption holes 422 communicating with the cavity. When the suction head 42 is driven to insert into the folding area 61, the adhesive paper 20 located between the adhesive pulling mechanism 30 and the cutting mechanism 50 is bent into a U-shape. At this time, the air pressure in the cavity can be reduced by the air pump, so that the adhesive paper 20 is adsorbed and contacts the outer peripheral wall of the suction head 42, which facilitates the subsequent transfer of the bent adhesive paper 20. When the suction head 42 is driven to move to the gap 20' between the two battery cells 10', the air pressure in the cavity 421 can be increased by the air pump, so that the adhesive paper 20 adsorbed on the outer peripheral wall of the suction head 42 is pressed against the side of the battery cell body 11'. In this way, the adhesive tape 20 can be pre-bent, and it can also be transferred and pasted. The pre-bending and transfer processes are cleverly combined, which helps to improve the efficiency of adhesive application.

[0077] Reference Figure 5 Specifically, the adsorption holes 422 are provided on both sides of the suction head 42 along the first direction and on the surface away from the drive assembly 41, so that the suction head 42 can adsorb the two inner sidewalls and the bottom surface of the adhesive tape 20, further ensuring that the adhesive tape 20 will not fall off during the transfer to the gap 20' between the two battery cells 10'; at the same time, air can be blown towards the outer periphery of the suction head 42 using the adsorption holes 422, thereby moving the adhesive tape 20 towards the battery cell body 11' and the tab 12' for adhesive bonding, which helps to improve the quality of adhesive bonding.

[0078] according to Figure 2 and Figure 3 The described adhesive applicator, by providing an adhesive folding mechanism 60 with an adhesive folding area 61 on one side of the adhesive tape 20 and driving the suction head 42 to insert into the adhesive folding area 61, pre-folds the adhesive tape 20 located at the adhesive preparation position S into the shape to be glued. This solves the problem of interference between the adhesive tape 20 and the battery cell during adhesive application, effectively avoids the problems of incomplete adhesive application and battery cell position deviation, and at the same time prevents the adhesive tape 20 from rubbing against the areas on both sides of the gap 11' entrance, thus improving the quality of adhesive application.

[0079] Reference Figure 3In one embodiment, the folding mechanism 60 includes spaced-apart support rollers, with adjacent support rollers defining a folding area 61. It should be noted that the spaced-apart support rollers need to be arranged side-by-side in parallel so that when the suction head 42 is inserted into the folding area 61, the two outer sides of the pre-bent adhesive tape 20 are rolled by the parallel support rollers, ensuring a better U-shape pre-bent and improving subsequent adhesive application quality. For example, if the spaced-apart support rollers have a height difference along the second direction, it will cause a height difference between the two sides of the pre-bent adhesive tape 20, resulting in poor subsequent adhesive quality.

[0080] In addition to the support rollers spaced apart in the above embodiments, the folding mechanism 60 can also use a support member with an internal hollowed-out folding area 61, so that the suction head 42 squeezes the adhesive paper and bends it inward toward the folding area 61, thereby bending the adhesive paper 20 into a U-shape.

[0081] Reference Figure 6 During the process of the suction head 42 pressing the adhesive paper 20 towards the folding area 61, the adhesive paper 20 will roll against the support roller. To prevent the adhesive paper 20 from sliding relative to the surface of the support roller and affecting the bending effect, in one embodiment, the folding mechanism 60 further includes spaced limiting rings 63. Each support roller is fitted with multiple limiting rings 63, and adjacent limiting rings 63 define limiting grooves 64. In this way, the adhesive paper pressed by the suction head 42 can abut against the limiting grooves 64, and the limiting rings 63 can be used to limit the relative displacement of the adhesive paper 20, thereby further improving the bending effect of the adhesive paper 20.

[0082] In addition, in order to ensure that the adhesive tape 20 can abut against the limiting groove 64 when bent, the length of the limiting groove 64 needs to be set to be greater than or equal to the width of the adhesive tape 20.

[0083] Reference Figure 7 In one embodiment, a first driving member 80 is further included. The first driving member 80 is connected to one end of the support roller and is used to drive the support roller to move along a first direction to adjust the width of the folding area 61. In this way, the width of the folding area 61 can be adjusted by using the first driving member 80 to drive the support roller to move along the first direction according to the width of the inner cavity of the bent U-shape and the width requirement of the adhesive paper 20, thereby meeting different bonding requirements.

[0084] It should be noted that two support rollers can be provided. The first driving member 80 can drive only one support roller to move along the first direction, while the other does not move; or two first driving members 80 can be provided to drive their respective support rollers to move, so as to adjust the width of the folded adhesive area 61. There is no special limitation on this. In this embodiment, only one first driving member 80 is used to drive one support roller to move.

[0085] Reference Figure 7 In one embodiment, a second driving member 90 is further included, which is connected to the support roller and is used to drive the support roller along a second direction (see reference). Figure 7 (Direction B) Reciprocating motion in a straight line; the second direction intersects with the first direction.

[0086] For example, when the suction head 42 is inserted into the folding area 61 and the adhesive tape 20 is bent toward the side away from the adhesive application mechanism 40, the adhesive tape 20 is pressed against the support roller. At this time, the second driving member 90 can be used to drive the support roller to move back and forth in a straight line in the second direction, so that the outer side of the adhesive tape 20 is shaped by the moving support roller, thereby making the U-shaped effect formed by the bent adhesive tape 20 better. This further avoids the subsequent friction between the U-shaped adhesive tape 20 and the areas on both sides of the entrance of the gap 20', which would cause damage to the adhesive tape 20 and improve the quality of the adhesive.

[0087] The adhesive applicator according to the embodiments of the present disclosure further includes a substrate 70, an unwinding mechanism 10, an adhesive pulling mechanism 30, a driving assembly 41, a first driving member 80, a second driving member 90, and a cutting mechanism 50, all of which are mounted on one side of the substrate.

[0088] The system also includes a mounting plate 100, a slide rail 200 on the other side of the substrate 70, a slider 300 slidably connected to the slide rail 200, a surface of the mounting plate 100 facing the substrate 70 and a slider 300 fixedly connected, a support roller with one end passing through the substrate 70 and connected to the mounting plate 100, and a groove (not shown) along a first direction is formed on the mounting plate 100, a first drive member 80 is mounted on the surface of the mounting plate 100 away from the substrate 70, a second drive member 90 is mounted on the substrate 70, and the power output end of the second drive member 90 is connected to one end of the mounting plate 100. The second drive member 90 can drive the mounting plate 100 to move back and forth linearly on the substrate 70 along a second direction, thereby driving the support roller to move back and forth linearly along the second direction.

[0089] In one embodiment, the width of the suction head 42 and the width of the adhesive folding area 61 satisfy the following relationship:

[0090] 0.167 <D1 / D2≤1

[0091] Where D1 is the width of the suction head and D2 is the width of the folding area.

[0092] To verify the effect of the width of the suction head 42 on the adsorption of adhesive tape, five sets of data were taken within the above range, and two sets of data outside the above range were set as comparative examples. The specific test results are shown in the table below:

[0093]

[0094] During the experiment, the width of the folding area 61, the thickness of the adhesive paper 20, and the number of adhesive papers 20 were kept constant. The only difference was the width of the suction head 42. The ratio of the suction head width D1 to the folding area width D2 in experiments 1 to 5 was within the above range, while the ratio in experiments 6 and 7 was outside the above range.

[0095] As shown in the table above, the number of creases in the adhesive tape 20 in experiments 1 to 5 is significantly less than in experiments 6 and 7. This indicates that controlling the ratio of the nozzle width D1 to the width D2 of the folded adhesive area within a range greater than 0.167 and less than or equal to 1 is crucial to minimizing the number of creases in the adhesive tape 20 and ensuring the quality of subsequent adhesive application. Furthermore, within this range, a ratio of 0.4 to 1 between the nozzle width D1 and the width D2 of the folded adhesive area results in the fewest creases in the adhesive tape 20 and the best adhesive application quality.

[0096] According to the adhesive applicator implemented in this disclosure, the driving assembly 41 includes a guide rail 411 and a third driving member 412. The guide rail 411 is mounted on the substrate 70, and the third driving member 412 is slidably mounted on the guide rail 411. The suction head 42 is connected to the third driving member 412. The third driving member 412 is capable of linear reciprocating motion along a first direction on the guide rail 411 and is capable of driving the suction head 42 to linear reciprocate motion along a second direction.

[0097] For example, the third driving component 412 can be a combination of a linear motor and a cylinder. Specifically, the linear motor is slidably connected to the guide rail 411, the cylinder body is mounted on the linear motor, the piston rod of the cylinder is connected to a fixed seat 43, and the suction head 42 is mounted on the fixed seat 43. In this way, the linear motor can move linearly back and forth along the guide rail 411 in a first direction to drive the suction head 42 to move between the adhesive application position and the adhesive preparation position. When the suction head 42 moves to the adhesive preparation position S, the cylinder drives the fixed seat 43 to move in a second direction, so that the suction head 42 inserts into the folding area 61, thereby bending the adhesive paper 20.

[0098] According to the adhesive applicator of the present disclosure, the adhesive pulling mechanism 30 includes a fourth driving member 31, which is mounted on the substrate 70; a clamping assembly 32 is connected to the fourth driving member 31, and the clamping assembly 32 has a clamping opening 321 that can be opened or closed; wherein, the fourth driving member 31 can drive the clamping assembly 32 to move linearly back and forth along a first direction.

[0099] For example, the fourth driving component 31 is a linear motor, and the clamping component 32 is connected to the linear motor. The characteristic of the linear motor to move back and forth in a straight line is used to drive the clamping component 32 to move in the first direction. For example, when it is necessary to pull the adhesive tape 20 in the unwinding mechanism 10 to the glue preparation position S, the linear motor drives the clamping component 32 to approach the unwinding mechanism 10 in the first direction so that one end of the adhesive tape 20 is located at the clamping opening 321. Then, the clamping component 32 closes the clamping opening 321 to clamp one end of the adhesive tape 20. Then, the linear motor drives the clamping component 32 to move away from the unwinding mechanism 10 in the first direction, thereby automatically pulling the adhesive tape 20 in the unwinding mechanism 10 to the glue preparation position S in the first direction without manual operation.

[0100] Specifically, the clamping assembly 32 includes a mounting base 322, a first clamping arm 324, a sixth drive 323, and a second clamping arm 325. The mounting base 322 is mounted on the fourth drive 31. The first clamping arm 324 and the sixth drive 323 are both mounted on the mounting base 322. The second clamping arm 325 is connected to the sixth drive 323, and a clamping opening 321 is defined between the second clamping arm 325 and the first clamping arm 324. The sixth drive 323 can drive the second clamping arm 325 away from or closer to the first clamping arm 324 to open or close the clamping opening 321.

[0101] According to the adhesive applicator of this disclosure, the cutting mechanism 50 includes cutting units 51 disposed on both sides of the adhesive paper 20 along the second direction B. The cutting unit 51 includes a fifth driving member 511 and a cutter 512. The fifth driving member 511 is fixed on the substrate 70. The cutter 512 is connected to the fifth driving member 511. The fifth driving member 511 can drive the cutter 512 to move closer to or away from the adhesive paper 20.

[0102] For example, the fifth driving member 511 can be fixed to the base plate 70 by the connecting plate 513, and the fifth driving member 511 can be a cylinder. The cutter 512 is mounted on the piston rod of the cylinder. When the adhesive tape 20 is bent into a U-shape, the cylinder drives the cutter 512 to move towards the adhesive tape 20, so that the adhesive tape 20 is automatically cut under the cooperation of the two cutters 512. No manual operation is required, and the required length of adhesive tape 20 can be cut according to the size of the gap 20'.

[0103] According to the adhesive applicator of the present disclosure, the unwinding mechanism 10 includes a roll 11 and a guide roller 12. The roll 11 and the guide roller 12 are both mounted on the substrate 70, and the guide roller 12 is located between the roll 11 and the cutting mechanism 50 along a first direction. The adhesive paper 20 is wound around the outer periphery of the roll 11 and the guide roller 12 in sequence.

[0104] For example, the adhesive tape 20 to be pasted is wound onto the tape reel 11, and one end of the adhesive tape 20 wound on the tape reel 11 is wound around the outer periphery of the guide roller 12. When a pre-applied bend is required, the tape pulling mechanism 30 moves closer to the guide roller 12, so that one end of the adhesive tape 20 wound around the outer periphery of the guide roller 12 is pulled out by the tape pulling mechanism 30 in a first direction, thereby achieving automatic unwinding of the adhesive tape 20. In addition, it should be noted that the adhesive side of the adhesive tape 20 is the surface in contact with the guide roller 12, and the surface away from the guide roller 12 is not adhesive. Thus, after the cutting mechanism 50 cuts the adhesive tape 20 located at the pre-applied position S, the adhesive tape 20 wound around the guide roller 12 can continue to be wound around the outer periphery of the guide roller 12, and will not fall off the guide roller due to the cutting, ensuring the subsequent normal tape pulling and pre-applied operations.

[0105] This disclosure also provides an adhesive application method, which includes the following steps:

[0106] S10. Pull one end of the adhesive tape 20 out along the first direction, so that the adhesive tape 20 is distributed along the first direction at the adhesive preparation position S.

[0107] For example, the adhesive tape 20 can be wound onto the unwinding mechanism 10, and then the adhesive pulling mechanism 30 can be used to pull one end of the adhesive tape 20, so that the adhesive tape 20 wound on the unwinding mechanism 10 is distributed in the adhesive preparation position S along the first direction.

[0108] S20, drive the suction head 42 to move toward the adhesive paper 20 until the suction head 42 is inserted into the folding area 61, and drive the support roller to move along the first direction and / or the second direction to fold the adhesive paper 20 located in the adhesive preparation position to one side.

[0109] For example, before driving the suction head 42 to move toward the adhesive tape 20, the suction head 42 needs to be moved to the area directly opposite the adhesive preparation position S and above the folding area 61. Then, the suction head 42 is driven to move toward the adhesive tape 20 until the suction head 42 is inserted into the folding area 61, so that the adhesive tape is squeezed to the folding position. Then, the adhesive tape 20 is further shaped by the support roller that can move along the first direction and / or the second direction, thereby pre-folding the adhesive tape 20 to form a cavity.

[0110] S30. Reduce the air pressure in the cavity of the suction head 42 to allow the bent adhesive paper 20 to adhere to the outer periphery of the suction head 42, and cut the bent adhesive paper 20.

[0111] S40, the drive nozzle 42 transfers the bent adhesive tape 20 to the adhesive application position and applies the adhesive.

[0112] For example, the "adhesive application position" mentioned here refers to the gap 20' between two adjacent battery cells 10'. The drive assembly 41 is used to drive the suction head 42 to transfer the bent adhesive tape 20 to the gap 20' between the two adjacent battery cells 10' until the bottom of the adhesive tape 20 contacts the tab 12'. Then, the air pressure in the cavity of the suction head 42 is increased to move the adhesive tape 20 toward the outer periphery of the suction head 42, so that the bottom of the adhesive tape 20 is adhered to the tab 12' and the two sides of the adhesive tape 20 are adhered to the sides of the two battery cell bodies 11', thereby achieving the adhesion of the adjacent battery cells 10'.

[0113] The adhesive application method of this embodiment utilizes a suction head 42 inserted into the folding area 61, which pre-folds the adhesive paper 20 located at the adhesive preparation position S into the shape to be applied. This solves the problem of interference between the adhesive paper 20 and the battery cell during adhesive application, effectively avoids the problems of incomplete adhesive application and battery cell position displacement, and at the same time prevents the adhesive paper 20 from rubbing against the areas on both sides of the gap entrance, thus improving the quality of adhesive application.

[0114] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. An adhesive applicator, characterized in that, include: Unwinding mechanism (10) for winding adhesive tape (20); A glue-pulling mechanism (30) is used to pull out one end of the adhesive paper (20); The adhesive applicator (40) includes a drive assembly (41) and a suction head (42), the suction head (42) being connected to the drive assembly (41); A cutting mechanism (50) is provided between the adhesive pulling mechanism (30) and the unwinding mechanism (10) for cutting the adhesive paper (20); The glue-folding mechanism (60) is located between the glue-pulling mechanism (30) and the cutting mechanism (50), and the glue-folding mechanism (60) includes a glue-folding component (62). The drive assembly (41) can drive the suction head (42) to insert the adhesive paper (20) located between the adhesive pulling mechanism (30) and the cutting mechanism (50) into the folding assembly (62) so that the adhesive paper (20) is bent.

2. The adhesive applicator according to claim 1, characterized in that, The folding assembly (62) consists of support rollers arranged at intervals.

3. The adhesive applicator according to claim 2, characterized in that, The adhesive folding mechanism (60) also includes spaced-apart limiting rings (63), and each of the support rollers is fitted with a plurality of limiting rings (63), and a limiting groove (64) is defined between adjacent limiting rings (63); the length of the limiting groove (64) is greater than or equal to the width of the adhesive paper (20).

4. The adhesive applicator according to claim 2, characterized in that, It also includes a first drive member (80), which is connected to one end of the support roller and is used to drive the support roller to move along a first direction (A) to adjust the width between the support rollers.

5. The adhesive applicator according to claim 4, characterized in that, It also includes a second drive member (90), which is connected to the support roller and is used to drive the support roller to move back and forth in a straight line along a second direction (B); the second direction (B) intersects with the first direction (A).

6. The adhesive applicator according to claim 2, characterized in that, The width of the suction head (42) and the spacing width of the support rollers satisfy the following relationship: in, The width of the suction head (42) The interval width of the support rollers.

7. The adhesive applicator according to any one of claims 1 to 6, characterized in that, Also includes: The substrate (70), the unwinding mechanism (10), the adhesive stretching mechanism (30), the driving assembly (41) and the cutting mechanism (50) are all mounted on one side of the substrate (70); The driving component (41) includes: The guide rail (411) is mounted on the substrate (70); The third drive unit (412) is slidably mounted on the guide rail (411), and the suction head (42) is connected to the third drive unit (412); The third driving member (412) is capable of linear reciprocating motion along the first direction (A) on the guide rail (411) and is capable of driving the suction head (42) to linear reciprocate motion along the second direction (B).

8. The adhesive applicator according to claim 7, characterized in that, The adhesive pulling mechanism (30) includes: The fourth driving component (31) is mounted on the substrate (70); The clamping assembly (32) is connected to the fourth drive member (31), and the clamping assembly (32) has a clamping opening (321) that can be opened or closed. The fourth driving member (31) can drive the clamping assembly (32) to move back and forth in a straight line along the first direction (A).

9. The adhesive applicator according to claim 7, characterized in that, The cutting mechanism (50) includes cutting units (51) disposed on both sides of the adhesive tape (20), and the cutting unit (51) includes: The fifth driving component (511) is fixed on the substrate (70); The cutter (512) is connected to the fifth drive unit (511); The fifth driving member (511) can drive the cutter (512) to move closer to or further away from the adhesive paper (20).

10. A method for applying adhesive, characterized in that, Includes the following steps: Pull out one end of the adhesive tape (20) so that the adhesive tape (20) is distributed between the tape pulling mechanism (30) and the cutting mechanism (50); Drive the suction head (42) to move toward the adhesive tape (20) until the suction head (42) is inserted into the spaced support rollers, and drive the support rollers to move along the first direction (A) and / or the second direction (B) to bend the adhesive tape (20) to one side; Reduce the air pressure in the cavity of the suction head (42) to allow the bent adhesive paper (20) to adhere to the outer periphery of the suction head (42), and cut the bent adhesive paper (20); Drive the suction head (42) to transfer the bent adhesive paper (20) to the adhesive application position for adhesive application.

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