Glue preparation mechanism of primer pasting equipment for lithium battery

Abstract

The utility model relates to the technical field of tab rubberizing, in particular to a glue preparation mechanism of lithium battery primer rubberizing equipment, which comprises an unwinding component and a waste collecting component, the waste collecting component comprises a rotatable waste collecting shaft, the waste collecting shaft is sleeved with a waste collecting cylinder, and the waste collecting cylinder is sleeved with a waste collecting bottom plate and a waste collecting top plate which are arranged at intervals. A movable hole matched with the waste collecting cylinder is coaxially formed in the waste collecting bottom plate and the waste collecting top plate, a guide groove is formed in the hole wall of the movable hole, and an axially-arranged guide rod is installed on the outer ring wall of the waste collecting cylinder in an attached mode. The elastic fastening sheet of the unwinding shaft fastens the adhesive disc under the action of the elastic seat, so that the adhesive tape is unwound in a manner of synchronously rotating with the unwinding shaft; the unwound waste tape is wound and collected through a waste collecting cylinder of the waste collecting shaft; when the waste collecting shaft collects waste fully, the waste collecting top plate located on the waste collecting cylinder is in sliding fit with the guide groove through the guide rod, the waste collecting top plate can be disassembled from the waste collecting cylinder in an axial sliding mode, tedious operation such as screwing is not needed, disassembly and assembly are easy, the pause time is shortened, and the unwinding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tab glue application, in particular to a glue preparation mechanism for lithium battery bottom glue application equipment. Background Art

[0002] In the lithium battery manufacturing industry, the adhesive bonding process is a critical step in ensuring battery performance and safety. However, traditional technologies have significant limitations in this area. The flat-bond adhesive bonding method often leads to a thorny problem: gas cannot be discharged smoothly, forming bubbles between the adhesive and the battery cell surface. This not only affects the internal structural integrity of the battery, but also may pose a safety hazard. In addition, improving the machining accuracy of parts to eliminate the cumulative errors caused by the numerous parts connected in series is not only costly but also ineffective. Furthermore, traditional technologies generally rely on improving the machining accuracy of parts to address the challenges posed by the cumulative errors of parts connected in series. However, this method not only significantly increases manufacturing costs, but also often achieves half the result with twice the effort, making it difficult to achieve the expected precision improvement and quality optimization goals. Faced with this industry challenge, we urgently need to explore innovative solutions to achieve breakthroughs in both cost control and process optimization.

[0003] The utility model with application number CN202022451435.1 discloses a 5G pole ear gluing mechanism, including a pole ear support and transfer device, a T-shaped support frame, an upper pole ear gluing device and a lower pole ear gluing device; the T-shaped support frame is fixed to the top of the pole ear support and transfer device, and the upper pole ear gluing device and the lower pole ear gluing device are respectively fixed to the upper and lower parts of the T-shaped support frame; the upper pole ear gluing device includes an upper preparation glue assembly, an upper glue pressing assembly, an upper glue feeding assembly, an upper cutting assembly, a cantilever roller assembly and a glue placing assembly; the upper preparation glue assembly is fixed to the front side of the T-shaped support frame, the upper glue pressing assembly is fixed to the rear wall of the T-shaped support frame, the upper glue feeding assembly is fixed to the rear side of the upper preparation glue assembly, the cantilever roller assembly is fixed to the front wall of the T-shaped support frame, and the cantilever roller assembly is located on the rear side of the upper glue feeding assembly, and the glue placing assembly is fixed to the top of the T-shaped support frame; it can effectively glue the pole ears and has good market application value.

[0004] The existing winding station utilizes a double baffle, with the outer baffle secured to the central rotating shaft with four screws. Once the scrap roll is full, manual removal is required, which is inconvenient. The person removing the scrap roll needs an external hexagonal wrench, which removes all the screws and the baffle before removing the scrap roll. This results in a waste of manpower and material resources. Summary of the Invention

[0005] The purpose of the utility model is to provide a glue preparation mechanism for lithium battery bottom glue application equipment in response to the deficiencies in the prior art.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] The adhesive preparation mechanism of the lithium battery adhesive bonding equipment includes an unwinding assembly and a waste collection assembly. The unwinding assembly includes a rotatable unwinding shaft, the unwinding shaft is equipped with an unwinding base plate, and the unwinding base plate is equipped with multiple axially inclined elastic fastening plates. The elastic fastening plates can elastically support the inner ring wall of the unwinding disk;

[0008] The waste collecting assembly includes a rotatable waste collecting shaft, a waste collecting shaft sleeve is provided with a waste collecting barrel, and the waste collecting barrel sleeve is provided with a waste collecting bottom plate and a waste collecting top plate arranged at intervals. The waste collecting bottom plate and the waste collecting top plate are coaxially formed with a movable hole that cooperates with the waste collecting barrel, and a guide groove is formed on the hole wall of the movable hole. An axially arranged guide rod is fitted on the outer ring wall of the waste collecting barrel, and the guide rod is slidably matched with the guide groove. The waste collecting top plate can be axially slidably removed and installed on the waste collecting barrel.

[0009] Furthermore: the glue preparation mechanism also includes a supporting base plate for installing the unwinding component and the waste collection component. The supporting base plate is laterally connected to the guide base plate. A torque motor is installed at the bottom of the guide base plate. The driving end of the torque motor is connected to the waste collection shaft.

[0010] Furthermore, the guide bottom plate is also provided with a permanent magnetic brake, and the braking end of the permanent magnetic brake is sleeved on the unwinding shaft.

[0011] Furthermore: the unwinding assembly also includes a plurality of conveying rollers for conveying the tape, and the conveying rollers are longitudinally installed on the supporting base plate.

[0012] Furthermore: a tensioning roller is arranged beside the conveying roller, a tensioning adjustment groove is formed laterally on the supporting base plate, a tensioning support block is slidably installed in the tensioning adjustment groove, the tensioning roller is rotatably installed on the tensioning support block, and the tensioning support block can approach or move away from the conveying roller along the tensioning adjustment groove.

[0013] Further: a tensioning telescopic cylinder and a tensioning adjustment track parallel to the tensioning adjustment groove are installed at the bottom of the supporting base plate, the tensioning adjustment track is installed with a bottom sliding seat, the bottom sliding seat is connected to the tensioning support block, and the driving end of the tensioning telescopic cylinder is connected to the tensioning support block.

[0014] Furthermore: the tensioning roller and the conveying roller respectively include a rotating shaft, the rotating shaft sleeve is provided with a conveying cylinder, the outer ring wall of the conveying cylinder is formed with a plurality of raised outer ring protrusions, and two adjacent outer ring protrusions are arranged at intervals.

[0015] Furthermore: the top and bottom of the rotating shaft are both sleeved with limiting rings.

[0016] Furthermore: the supporting base plate is also provided with a rubber dragging mechanism, which includes a clamping drive seat close to or away from the conveying roller, and the clamping drive seat is equipped with a clamping member capable of opening and closing movement.

[0017] Furthermore: the rubber dragging mechanism also includes a conveyor belt arranged along the movement direction of the clamping drive seat, one of the long side sections of the conveyor belt is equipped with a transmission seat, the transmission seat is connected to the clamping drive seat, and the clamping drive seat is equipped with a clamping finger cylinder that drives the clamping piece to open and close.

[0018] The beneficial effects of the utility model are as follows: the rubber disc to be unwound is sleeved on the unwinding shaft, and the elastic fastening piece of the unwinding shaft can bear against the inner ring wall of the rubber disc under the action of the elastic seat, thereby fastening the rubber disc and realizing unwinding of the rubber tape in synchronous rotation with the unwinding shaft; the waste tape after unwinding is wound and collected by the waste collection drum of the waste collection shaft; when the waste collection shaft is fully loaded with waste, the waste collection top plate located on the waste collection drum slides in cooperation with the guide rod and the guide groove, and the waste collection top plate can be axially slidably disassembled from the waste collection drum without the need for tedious operations such as screwing, and the disassembly and assembly are simple, the pause time is reduced, and the unwinding efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the glue preparation mechanism.

[0020] Figure 2 It is a schematic diagram of the structure of the unwinding component and the waste collection component.

[0021] Figure 3 This is a structural diagram of the glue preparation mechanism from another perspective.

[0022] Figure 4 It is a structural diagram of the rubber dragging mechanism.

[0023] Reference numerals include:

[0024] 1- Unwinding component,

[0025] 11-unwinding shaft, 12-unwinding bottom plate, 13-elastic fastening plate, 14-permanent magnetic brake,

[0026] 15-guide base plate, 16-support base plate,

[0027] 2- Collection of scrap components,

[0028] 21-waste collecting shaft, 22-waste collecting cylinder, 23-waste collecting bottom plate, 24-waste collecting top plate, 25-movable hole,

[0029] 26-guide groove, 27-guide rod, 28-torque motor,

[0030] 3-Conveyor roller,

[0031] 30-tensioning roller, 31-tensioning adjustment slot, 32-tensioning support block, 33-tensioning telescopic cylinder,

[0032] 34-tensioning adjustment track, 35-bottom sliding seat, 36-rotating shaft, 37-transmission cylinder,

[0033] 38-outer ring protrusion, 39-limiting ring sleeve,

[0034] 4-Glue dragging mechanism,

[0035] 41-opening drive seat, 42-opening clamp, 43-transmission belt, 44-transmission seat, 45-opening finger cylinder. DETAILED DESCRIPTION

[0036] The present invention is described in detail below with reference to the accompanying drawings.

[0037] like Figure 1-4 As shown, the glue preparation mechanism of the lithium battery bottom glue sticking equipment includes a reeling assembly 1 and a waste collecting assembly 2. The glue preparation mechanism also includes a support base 16 for mounting the reeling assembly 1 and the waste collecting assembly 2. The reeling assembly 1 includes a rotatable reeling shaft 11, the reeling shaft 11 is mounted with a reeling base 12, and the reeling base 12 is mounted with a plurality of axially inclined elastic fastening pieces 13, which can elastically support the inner ring wall of the reeling disc; the waste collecting assembly 2 includes a rotatable waste collecting shaft 2 1. The waste collecting shaft 21 is sleeved with a waste collecting cylinder 22, and the waste collecting cylinder 22 is sleeved with a waste collecting bottom plate 23 and a waste collecting top plate 24 arranged at intervals. The waste collecting bottom plate 23 and the waste collecting top plate 24 are coaxially formed with a movable hole 25 that cooperates with the waste collecting cylinder 22. The hole wall of the movable hole 25 is formed with a guide groove 26. An axially arranged guide rod 27 is fitted on the outer ring wall of the waste collecting cylinder 22. The guide rod 27 is slidably matched with the guide groove 26. The waste collecting top plate 24 can be axially slidably removed and installed on the waste collecting cylinder 22.

[0038] The adhesive reel to be unwound is sleeved on the unwinding shaft 11, and the elastic fastening piece 13 of the unwinding shaft 11 can bear against the inner ring wall of the adhesive reel under the action of the elastic seat, thereby fastening the adhesive reel and realizing the unwinding of the adhesive tape by synchronous rotation with the unwinding shaft 11; the waste tape after unwinding is wound and collected by the waste collection drum 22 of the waste collection shaft 21; when the waste collection shaft 21 is fully loaded with waste, the waste collection top plate 24 located at the waste collection drum 22 is slidably matched with the guide groove 26 through the guide rod 27, and the waste collection top plate 24 can be axially slidably removed from the waste collection drum 22 without the need for tedious operations such as screwing, which makes disassembly and assembly simple, reduces the pause time, and improves the unwinding efficiency.

[0039] Preferably, the elastic fastening piece 13 is driven by a spring to radially pop out, thereby fastening and locking the rubber disc sleeved on the unwinding shaft 11 .

[0040] The waste collection assembly 2 also includes a guide base plate 15 that is laterally connected to the support base plate 16. A torque motor 28 is installed at the bottom of the guide base plate 15, and the drive end of the torque motor 28 is connected to the waste collection shaft 21. The mechanical characteristics of the torque motor 28 are relatively soft, that is, as the load increases, the motor speed will automatically decrease, thereby keeping the output torque relatively stable. This characteristic enables the torque motor 28 to automatically adjust the output when the load changes, ensuring the stability of the system. Strong overload capacity: It can withstand large overloads and can output torque exceeding the rated torque in a short period of time, which is suitable for some occasions that need to deal with instantaneous overload conditions. Fast response: It has a fast response speed to the input signal and can quickly adjust the output torque and speed to meet the needs of some applications with high dynamic response requirements. Good characteristic linearity and small torque fluctuation: The output torque has a good linear relationship with the input current or voltage, and the torque fluctuation is small, which is conducive to achieving precise control. The speed can be adaptively adjusted according to the tension of the rubber reel during unwinding, and the waste tape can be stably rewound to prevent the waste tape from breaking during rewinding.

[0041] The guide base plate 15 is also equipped with a permanent magnetic brake 14. The braking end of the permanent magnetic brake 14 is sleeved on the unwinding shaft 11. The unwinding shaft 11 is a driven structure. The unwinding is achieved by driven rotation according to the rotation of the waste collecting shaft 21 of the waste collecting assembly 2. When there is a pause or the tape becomes loose during transmission, the permanent magnetic brake 14 can stop the unwinding shaft 11 and suspend the unwinding to prevent the tape from falling off.

[0042] The unwinding assembly 1 also includes a plurality of conveyor rollers 3 for conveying the tape. The conveyor rollers 3 are longitudinally mounted on the support base 16. The unwound tape is conveyed forward by the conveyor rollers 3. A tensioning roller 30 is provided next to the conveyor rollers 3. The support base 16 is laterally formed with a tensioning adjustment slot 31. A tensioning support block 32 is slidably mounted in the tensioning adjustment slot 31. The tensioning roller 30 is rotatably mounted on the tensioning support block 32. The tensioning support block 32 can move closer to or farther from the conveyor roller 3 along the tensioning adjustment slot 31.

[0043] In this embodiment, when the tension of the tape needs to be adjusted during transmission, the tension support block 32 can move closer to or away from the transmission roller 3 along the tension adjustment groove 31 to adjust the tension and prevent the tape from loosening or breaking.

[0044] Furthermore, a tensioning telescopic cylinder 33 and a tensioning adjustment rail 34 parallel to the tensioning adjustment groove 31 are installed at the bottom of the supporting base plate 16. The tensioning adjustment rail 34 is installed with a bottom sliding seat 35. The bottom sliding seat 35 is connected to the tensioning support block 32, and the driving end of the tensioning telescopic cylinder 33 is connected to the tensioning support block 32; under the drive of the tensioning telescopic cylinder 33, the tensioning support block 32 slides along the tensioning adjustment groove 31, and at the same time, the bottom sliding seat 35 connected to the tensioning support block 32 slides along the tensioning adjustment rail 34, thereby improving the stability of the movement of the tensioning support block 32.

[0045] Furthermore, the tension roller 30 and the conveyor roller 3 each include a rotating shaft 36, which is sleeved with a conveyor drum 37. The outer wall of the conveyor drum 37 is formed with multiple raised outer ring protrusions 38, with adjacent outer ring protrusions 38 spaced apart. Because the adhesive tape is sticky, the outer ring protrusions 38 reduce the contact area with the conveyor drum 37, ensuring the adhesive tape's adhesion and preventing excessive adhesion to the conveyor drum 37, thereby not affecting the tape's performance.

[0046] Furthermore, the top and bottom of the rotating shaft 36 are both sleeved with limiting rings 39, which can prevent the axial deviation of the tape and ensure the stability of transmission.

[0047] Furthermore, the supporting base plate 16 is also provided with a rubber dragging mechanism 4, which includes a clamping drive seat 41 close to or away from the conveying roller 3, and the clamping drive seat 41 is equipped with a clamping member 42 that can perform opening and closing movements; when the tape is conveyed, the clamping drive seat 41 equipped with the clamping member 42 approaches the conveying roller 3, clamps the outer end of the tape, and drags it outward to the required length.

[0048] Preferably, the glue dragging mechanism 4 also includes a conveyor belt 43 arranged along the movement direction of the clamping drive seat 41, and one of the long side sections of the conveyor belt 43 is equipped with a transmission seat 44, which is connected to the clamping drive seat 41. The clamping drive seat 41 is equipped with a clamping finger cylinder 45 that drives the clamping member 42 to open and close. When the conveyor belt 43 moves, the transmission seat 44 will move in a straight line, thereby driving the clamping drive seat 41 to move close to or away from the conveyor roller 3, and then clamping the tape under the drive of the clamping finger cylinder 45.

[0049] In summary, it can be seen that the present invention has the above-mentioned excellent characteristics, which can enhance its performance unprecedented in the past and become a product with great practical value.

[0050] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. The adhesive preparation mechanism of the lithium battery adhesive bonding equipment includes an unwinding component and a waste collection component, which is characterized by: The unwinding assembly includes a rotatable unwinding shaft, the unwinding shaft is equipped with an unwinding base plate, and the unwinding base plate is equipped with a plurality of axially inclined elastic fastening plates, the elastic fastening plates can elastically support the inner ring wall of the unwinding disk; The waste collecting assembly includes a rotatable waste collecting shaft, a waste collecting shaft sleeve is provided with a waste collecting barrel, and the waste collecting barrel sleeve is provided with a waste collecting bottom plate and a waste collecting top plate arranged at intervals. The waste collecting bottom plate and the waste collecting top plate are coaxially formed with a movable hole that cooperates with the waste collecting barrel, and a guide groove is formed on the hole wall of the movable hole. An axially arranged guide rod is fitted on the outer ring wall of the waste collecting barrel, and the guide rod is slidably matched with the guide groove. The waste collecting top plate can be axially slidably removed and installed on the waste collecting barrel.

2. The adhesive preparation mechanism of the lithium battery adhesive bonding equipment according to claim 1, characterized in that: The glue preparation mechanism also includes a support base plate for installing the unwinding assembly and the waste collection assembly. The support base plate is laterally connected to the guide base plate. A torque motor is installed at the bottom of the guide base plate. The driving end of the torque motor is transmission-connected to the waste collection shaft.

3. The adhesive preparation mechanism of the lithium battery adhesive bonding equipment according to claim 2, characterized in that: The guide bottom plate is also provided with a permanent magnetic brake, and the braking end of the permanent magnetic brake is sleeved on the unwinding shaft.

4. The adhesive preparation mechanism of the lithium battery adhesive bonding equipment according to claim 3, characterized in that: The unwinding assembly further comprises a plurality of conveying rollers for conveying the adhesive tape, and the conveying rollers are longitudinally mounted on the supporting bottom plate.

5. The adhesive preparation mechanism of the lithium battery adhesive bonding equipment according to claim 4, characterized in that: A tensioning roller is arranged beside the conveying roller, and a tensioning adjustment groove is formed laterally on the supporting bottom plate. A tensioning support block is slidably installed in the tensioning adjustment groove. The tensioning roller is rotatably installed on the tensioning support block, and the tensioning support block can approach or move away from the conveying roller along the tensioning adjustment groove.

6. The adhesive preparation mechanism of the lithium battery adhesive bonding equipment according to claim 5, characterized in that: A tensioning telescopic cylinder and a tensioning adjustment track parallel to the tensioning adjustment groove are installed at the bottom of the supporting base plate. The tensioning adjustment track is installed with a bottom sliding seat, the bottom sliding seat is connected to the tensioning support block, and the driving end of the tensioning telescopic cylinder is connected to the tensioning support block.

7. The adhesive preparation mechanism of the lithium battery adhesive bonding equipment according to claim 5, characterized in that: The tensioning roller and the conveying roller respectively include a rotating shaft, the rotating shaft sleeve is provided with a conveying cylinder, the outer ring wall of the conveying cylinder is formed with a plurality of raised outer ring protrusions, and two adjacent outer ring protrusions are arranged at intervals.

8. The adhesive preparation mechanism of the lithium battery adhesive bonding equipment according to claim 7, characterized in that: The top and bottom of the rotating shaft are both sleeved with limiting ring sleeves.

9. The adhesive preparation mechanism of the lithium battery adhesive bonding equipment according to claim 4, characterized in that: The supporting bottom plate is further provided with a rubber dragging mechanism, which includes a clamping drive seat close to or away from the conveying roller, and the clamping drive seat is equipped with a clamping member capable of opening and closing movement.

10. The adhesive preparation mechanism of the lithium battery adhesive bonding equipment according to claim 9, characterized in that: The rubber dragging mechanism also includes a conveyor belt arranged along the movement direction of the clamping drive seat. One of the long side sections of the conveyor belt is equipped with a transmission seat, which is connected to the clamping drive seat. The clamping drive seat is equipped with a clamping finger cylinder that drives the clamping piece to open and close.

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