Quantitative glue coating device for battery shell

Abstract

The utility model discloses a kind of quantitative gluing devices of battery shell, including belt passive conveying mechanism, vertical material placing mechanism, vertical material taking mechanism and dial belt type weighing mechanism, the vertical material placing mechanism and vertical material taking mechanism are symmetrically arranged in the upper and lower of belt passive conveying mechanism feed inlet, the dial belt type weighing mechanism is arranged in the lower of belt passive conveying mechanism discharge place.The utility model can accurately measure the coating amount of glue, avoids the situation that product quality declines due to excessive or insufficient glue coating, prevents subsequent safety accidents, and effectively improves the service life of battery.The utility model is suitable for the technical field of battery shell gluing.

Description

Technical Field

[0001] This utility model belongs to the technical field of adhesive coating for battery casings, specifically, it relates to a quantitative adhesive coating device for battery casings. Background Technology

[0002] Currently, during the production and assembly of batteries, adhesive needs to be applied to the top of the battery casing to facilitate the bonding of the cover to the battery casing, thereby ensuring that components such as the electrode plates inside the battery casing are not affected by external factors. During the adhesive application process, a battery dispensing machine, SEC-400AD, is generally used for precise dispensing along three-dimensional paths such as dots, lines, surfaces, and circles. The amount of adhesive applied needs to be controlled. When the amount of adhesive applied exceeds the process standard, the excess adhesive cannot be effectively utilized and will interfere with subsequent processes or damage the product structure through overflow and accumulation. Excess adhesive is an ineffective waste, directly increasing the consumable cost per battery. If the adhesive is a special sealant (such as acid-resistant or high-temperature resistant type), the cost waste problem is even more prominent, and long-term mass production will significantly increase the total cost. Excess adhesive easily overflows from the casing sealing grooves and seams, contaminating the surface of the battery casing (affecting appearance), electrode posts (leading to poor electrode contact), or internal components (such as separators and electrode groups), requiring additional cleaning processes and reducing production efficiency. If components such as the top cover and terminals need to be assembled after applying adhesive, the accumulated adhesive will hinder the precise fitting of the components, resulting in excessive assembly gaps and compromising the sealing effect. Insufficient adhesive application will prevent the formation of a continuous and complete sealing or adhesive layer, directly undermining the battery's core functional requirements of "leakage prevention and loosening prevention." The core function of the battery casing is to contain the electrolyte (sulfuric acid solution), and the key purpose of adhesive application is to seal the tiny gaps between the casing and the top cover, and at the joints. Insufficient adhesive application will lead to discontinuous sealing layers ("breaks") or insufficient thickness, allowing the electrolyte to leak through these gaps under internal pressure (gas expansion during charging) and temperature changes (high and low temperature cycling). The leaked acid will corrode external metal components of the battery (such as terminals and brackets), leading to increased contact resistance, unstable power supply, and even short circuits (such as leakage to the main circuit board). Some adhesive application processes require simultaneous "sealing and bonding" (such as the connection between the casing and the mounting bracket); insufficient adhesive application will result in insufficient bonding area and weak intermolecular bonding. During transportation and installation (e.g., vibration, impact), the adhesive joints of batteries are prone to loosening, leading to casing displacement and top cover detachment. If safety-related components are involved (e.g., the bonding between the explosion-proof valve and the casing), loosening will directly result in the loss of explosion-proof function, increasing the risk of battery swelling and explosion. Besides sealing, adhesive also forms a protective layer on the casing surface, resisting external moisture, dust, and mild corrosive media (such as acid and alkali mists in industrial environments). Insufficient adhesive application will result in an incomplete protective layer, allowing external impurities to easily penetrate the casing, accelerating the aging of internal components and shortening the battery's lifespan. Utility Model Content

[0003] This invention provides a quantitative adhesive application device for battery casings, which accurately measures the amount of adhesive applied, avoiding product quality degradation due to excessive or insufficient adhesive application, preventing subsequent safety accidents, and effectively improving the service life of batteries.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A quantitative adhesive coating device for a battery casing includes a belt-type passive conveyor, a vertical feeding mechanism, a vertical picking mechanism, and a belt-type weighing mechanism. The vertical feeding mechanism and the vertical picking mechanism are symmetrically arranged above and below the feeding port of the belt-type passive conveyor, and the belt-type weighing mechanism is arranged below the discharging port of the belt-type passive conveyor.

[0005] Furthermore, the belt-driven passive conveying mechanism includes multiple belt drive assemblies arranged side by side, with the same-side ends of the multiple belt drive assemblies connected in a drive connection.

[0006] Furthermore, the belt drive assembly includes two drive wheels spaced apart along the conveying direction of the battery casing. The two drive wheels are connected by a drive belt, and the drive wheels on the same side of the multiple belt drive assemblies are coaxially mounted on a connecting shaft. Fixed seats are rotatably connected to both ends of the connecting shaft.

[0007] Furthermore, multiple limiting seats are installed at intervals along the extension direction on each of the transmission belts, and a housing placement area is formed between four limiting seats that are close to each other in two adjacent belt transmission assemblies, with an operating channel formed at the center of the housing placement area.

[0008] Furthermore, the vertical material placement mechanism includes a vertical support frame that is open at both the top and bottom, a material placement cavity is formed inside the vertical support frame, and two pneumatic clamping assemblies are symmetrically installed on both sides of the lower part of the vertical support frame.

[0009] Furthermore, multiple operating notches are provided on both sides of the vertical support frame. The multiple operating notches are spaced apart along the conveying direction of the belt passive conveyor mechanism. The clamping ends of each pneumatic clamping component abut against the outer surfaces of multiple battery casings through the corresponding multiple operating notches.

[0010] Furthermore, the pneumatic clamping assembly includes a transverse drive cylinder mounted on the side wall of the vertical support frame. The cylinder rod of the transverse drive cylinder is connected to the adapter seat via an adapter bent rod. Multiple adapter posts are installed at intervals on the adapter seat. The multiple adapter posts are arranged one-to-one with multiple operating notches. A rubber clamping head is installed on each adapter post.

[0011] Furthermore, the vertical material handling mechanism includes an air guide seat mounted on the cylinder rod of the first vertical cylinder. Multiple vertical transfer pipes are installed at intervals at one end of the air guide seat near the belt passive conveyor mechanism. A material handling suction cup is connected to the upper end of each vertical transfer pipe. Each vertical transfer pipe is connected to a first connector pipe and a second connector pipe through the air guide seat. Both the first connector pipe and the second connector pipe are constructed on the air guide seat.

[0012] Furthermore, the belt-type weighing mechanism includes a weighing component and a belt-type component respectively installed at the upper and lower ends of the second vertical cylinder. The belt-type component includes a linear slide installed at the lower end of the cylinder body of the second vertical cylinder. The linear slide is mounted on a longitudinal guide rail, which extends along the conveying direction of the belt-type passive conveying mechanism.

[0013] Furthermore, the weighing assembly includes a mounting base installed on the cylinder rod of the second vertical cylinder, a plurality of vertical rods are spaced apart on the upper end surface of the mounting base, a weighing platform is installed at the upper end of each of the vertical rods, and a weighing sensor is provided in the weighing platform.

[0014] The present invention, by employing the aforementioned structure, achieves a technological advancement compared to existing technologies in the following ways: The present invention uses a vertical feeding mechanism to stack multiple battery casings in batches, with each layer containing multiple casings. By controlling the vertical picking mechanism, multiple battery casings from the bottom layer of the vertical feeding mechanism are picked up and placed at the feed inlet of the belt-type passive conveyor. Then, a belt-type weighing mechanism is controlled to move the belt-type passive conveyor, transferring the battery casings from the feed inlet to the discharge outlet. The battery dispensing machine is positioned above the discharge outlet of the belt-type passive conveyor. The vertical picking mechanism then picks up the battery casings and places them on the passive conveyor; the belt-type weighing mechanism supports the battery casings for weighing. Next, the battery dispensing machine performs dispensing operations. When the value measured by the belt-type weighing mechanism reaches a predetermined value, the dispensing operation stops. Then, the controlled belt-type weighing mechanism oscillates the passive conveyor mechanism, causing the battery casing, after dispensing, to detach from the passive conveyor mechanism. Simultaneously, the battery casing located at the inlet of the passive conveyor mechanism moves to the outlet, thus forming a complete and continuous dispensing line, improving the accuracy and efficiency of dispensing. In summary, this invention can accurately measure the amount of adhesive applied, avoiding product quality degradation due to excessive or insufficient adhesive application, preventing subsequent safety accidents, and effectively improving battery lifespan. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram: Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a side view of the structure of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of the belt passive conveyor mechanism according to an embodiment of the present invention; Figure 4 This is a partial top view of the belt passive conveyor mechanism according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the vertical material feeding mechanism according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the pneumatic clamping assembly in the vertical material feeding mechanism of this utility model embodiment; Figure 7 This is a schematic diagram of the vertical material handling mechanism according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the belt-type weighing mechanism according to an embodiment of the present utility model.

[0017] Components marked: 100-Belt passive conveyor mechanism, 101-Drive wheel, 102-Connecting shaft, 103-Drive belt, 104-Fixed seat, 105-Limiting seat, 106-Operating channel, 200-Vertical material placement mechanism, 201-Vertical support frame, 202-Material placement chamber, 203-Connecting seat, 204-Operating notch, 205-Horizontal drive cylinder, 206-Adapter bend, 207-Adapter seat, 208-Adapter column, 2 09-Rubber clamping head, 300-Vertical material handling mechanism, 301-Air guide seat, 302-Connecting sleeve, 303-Vertical adapter pipe, 304-Material suction cup, 305-First connector pipe, 306-Second connector pipe, 307-First vertical cylinder, 400-Pulley type weighing mechanism, 401-Mounting base, 402-Vertical rod, 403-Weighing platform, 404-Second vertical cylinder, 405-Linear slide table, 406-Longitudinal guide rail. Detailed Implementation

[0018] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0019] This utility model discloses a quantitative adhesive coating device for a battery casing, such as... Figure 1-8As shown, the system includes a belt-type passive conveyor mechanism 100, a vertical feeding mechanism 200, a vertical picking mechanism 300, and a belt-type weighing mechanism 400. The vertical feeding mechanism 200 is positioned above the feed inlet of the belt-type passive conveyor mechanism 100, and the vertical picking mechanisms 300 are symmetrically positioned below the feed inlet of the belt-type passive conveyor mechanism 100. The vertical feeding mechanism 200 and the vertical picking mechanism 300 are arranged opposite to each other. The belt-type weighing mechanism 400 is positioned below the discharge outlet of the belt-type passive conveyor mechanism 100 and can move the belt-type passive conveyor mechanism 100 along its conveying direction. A battery dispensing machine is positioned above the discharge outlet of the belt-type passive conveyor mechanism 100. The working principle and advantages of this invention are: the vertical feeding mechanism 200 stacks battery casings in batches, with each layer containing multiple battery casings. By controlling the vertical picking mechanism 300, it picks up multiple battery casings from the bottom layer of the vertical placing mechanism 200 and places them at the feed inlet of the belt passive conveyor 100. Then, the belt-type weighing mechanism 400 is controlled to move the belt passive conveyor 100, transferring the battery casings from the feed inlet to the discharge outlet. The battery dispensing machine is positioned above the discharge outlet of the belt passive conveyor 100. The vertical picking mechanism 300 then picks up the battery casings and places them on the passive conveyor; the belt-type weighing mechanism 400 supports the battery casings to achieve weighing. Next, the battery dispensing machine performs dispensing operations. When the value measured by the belt-type weighing mechanism 400 reaches a predetermined value, the dispensing operation stops. Then, the control belt-type weighing mechanism 400 is used to oscillate the passive conveying mechanism, causing the battery casings after dispensing to detach from the passive conveying mechanism. Simultaneously, the battery casings located at the inlet of the passive conveying mechanism move to the outlet, thus forming a complete and continuous dispensing line, improving the accuracy and efficiency of dispensing. In summary, this invention can accurately measure the amount of adhesive applied, avoiding product quality degradation due to excessive or insufficient adhesive application, preventing subsequent safety accidents, and effectively improving the service life of the battery.

[0020] As a preferred embodiment of this utility model, such as Figure 3 , 4As shown, the belt-driven passive conveying mechanism 100 includes multiple belt drive assemblies arranged side by side, with their ends connected for transmission. Specifically, each belt drive assembly includes a drive belt 103 and two drive pulleys 101, which are spaced apart along the conveying direction of the battery casing and are connected by the drive belt 103. Furthermore, in this embodiment, the drive pulleys 101 on the same side of the multiple belt drive assemblies are coaxially mounted on connecting shafts 102, meaning that the two drive pulleys 101 on each belt drive assembly are connected one-to-one to the two connecting shafts 102. Fixed seats 104 are rotatably connected to both ends of each connecting shaft 102. Alternatively, the belt drive assembly in this embodiment can also use a drive chain and two drive sprockets, which can replace the drive belt 103 and the two drive pulleys 101. In this embodiment, multiple limiting seats 105 are installed at intervals along the extension direction on each transmission belt 103. A housing placement area is formed between four limiting seats 105 that are close to each other in two adjacent belt transmission assemblies. An operation channel 106 is formed at the center of the housing placement area. The battery housing is placed in the corresponding housing placement area. The vertical material picking mechanism 300 can pick up and put down materials through the operation channel 106. The belt-type weighing mechanism 400 can weigh and actuate the belt-type passive conveying mechanism 100 through the operation channel 106.

[0021] As a preferred embodiment of this utility model, such as Figure 5 , 6 As shown, the vertical feeding mechanism 200 includes a vertical support frame 201 and two pneumatic clamping assemblies. Both the upper and lower ends of the vertical support frame 201 are open. A feeding cavity 202 is formed within the vertical support frame 201. The two pneumatic clamping assemblies are symmetrically installed on both sides of the lower part of the vertical support frame 201. A connecting seat 203 is fixed to the vertical support frame 201 and is fixed to the frame. Battery casings are placed in batches within the material placement chamber 202 of the vertical shelving frame 201, and two pneumatic clamping components clamp the battery casings located at the bottom of the vertical shelving frame 201. When the vertical picking mechanism 300 picks up the battery casings, it grabs the bottommost battery casing, at which point the two pneumatic clamping components release their grip on the battery casings. Next, the vertical picking mechanism 300 moves downwards by the height of one battery casing, causing all battery casings in the vertical shelving frame 201 to shift downwards by one station. After the shift is complete, the two pneumatic clamping components clamp the corresponding battery casings. Then, the vertical picking mechanism 300 continues to move downwards, placing the picked-up battery casings onto the belt passive conveyor mechanism 100.

[0022] As a preferred embodiment of this utility model, such as Figure 5 , 6As shown, multiple operating notches 204 are respectively opened on both sides of the vertical support frame 201. These operating notches 204 are spaced apart along the conveying direction of the belt passive conveyor mechanism 100. The clamping end of each pneumatic clamping component abuts against the outer surface of multiple battery casings through the corresponding multiple operating notches 204. The specific structure of the pneumatic clamping component in this embodiment is as follows: the pneumatic clamping component includes a transverse drive cylinder 205, a connecting rod 206, and a connecting seat 207. The transverse drive cylinder 205 is installed on the side wall of the vertical support frame 201. The cylinder rod of the transverse drive cylinder 205 is connected to the connecting seat 207 through the connecting rod 206. Multiple connecting posts 208 are spaced apart on the connecting seat 207. These connecting posts 208 are arranged one-to-one with the multiple operating notches 204. A rubber clamping head 209 is installed on each connecting post 208. In this embodiment, the transverse drive cylinder 205 is controlled to move, causing the adapter 207 to move closer to or further away from the side wall of the vertical support frame 201, thereby enabling the rubber clamping head 209 to abut or release from the side wall of the battery casing.

[0023] As a preferred embodiment of this utility model, such as Figure 7As shown, the vertical material handling mechanism 300 includes a first vertical cylinder 307, an air guide seat 301, and multiple vertical connecting pipes 303. The air guide seat 301 is mounted on the cylinder rod of the first vertical cylinder 307. Multiple connecting sleeves 302 are spaced apart on the air guide seat 301. The multiple vertical connecting pipes 303 are spaced apart on the end face of the air guide seat 301 near the belt-type passive conveyor mechanism 100, and each vertical connecting pipe 303 is aligned with a corresponding operating channel 106. Each vertical connecting pipe 303 is detachably connected to a corresponding connecting sleeve 302. A material handling suction cup 304 is connected to the upper end of each vertical connecting pipe 303, and each vertical connecting pipe 303 communicates with a first connector pipe 305 and a second connector pipe 306 via the air guide seat 301. Both the first connector pipe 305 and the second connector pipe 306 are constructed on the air guide seat 301. When the suction cup 304 contacts the lower end face of the battery casing, it draws through the first connector tube 305. At this time, the second connector tube 306 is closed, so the suction cup 304 firmly holds the battery casing. When it is necessary to release the suction cup 304 from the battery casing, the first connector tube 305 is closed and the second connector tube 306 is opened, so that the suction cup 304 loses vacuum or has a low positive pressure (to avoid the positive pressure being too high and causing the battery casing to be tilted by the airflow). The working principle of this embodiment is as follows: This embodiment controls the action of the first vertical cylinder 307, so that the vertical transfer pipe 303 drives the material suction cup 304 through the corresponding operation channel 106, and then picks up the battery casing and places the battery casing in the casing placement area; after completion, the first vertical cylinder 307 is controlled to move the air guide seat 301 downward, and drives the vertical transfer pipe 303 and the material suction cup 304 to disengage from the operation channel 106, so as to avoid them from obstructing the belt-type weighing mechanism 400 from moving the belt-type passive conveyor mechanism 100.

[0024] As a preferred embodiment of this utility model, such as Figure 8As shown, the belt-type weighing mechanism 400 includes a second vertical cylinder 404, a weighing component, and a belt-type assembly. The weighing component and the belt-type assembly are respectively installed at the upper and lower ends of the second vertical cylinder 404. In this embodiment, the belt-type assembly includes a linear slide 405 and a longitudinal guide rail 406. The linear slide 405 is installed at the lower end of the cylinder body of the second vertical cylinder 404, and is mounted on the longitudinal guide rail 406, which extends along the conveying direction of the belt-type passive conveying mechanism 100. Before the belt passive conveyor mechanism 100 is moved, the second vertical cylinder 404 is controlled to move downwards until the weighing component is positioned at the lower part of the transmission belt 103. The weighing component is located in the operating channel 106 at the lower part of the belt passive conveyor mechanism 100 (the operating channel 106 of the belt passive conveyor mechanism 100 is divided into two groups, which are arranged vertically at intervals. The upper group is used for accommodating, conveying and dispensing the battery casing, while the lower group is idle. As the belt-mounted weighing mechanism 400 is moved, the two groups of operating channels 106 are cyclically switched). Then, the linear slide 405 is controlled to move, which drives the weighing component through the second vertical cylinder 404. This moves the lower part of the belt passive conveyor mechanism 100 along the conveying direction of the belt passive conveyor mechanism 100, so that the part located at the feed point of the belt passive conveyor mechanism 100 is converted into the discharge point of the belt passive conveyor mechanism 100, thereby realizing the conveying of the battery casing. The weighing assembly in this embodiment includes a mounting base 401 and multiple vertical rods 402. The mounting base 401 is detachably mounted on the upper end of the cylinder rod of the second vertical cylinder 404. The multiple vertical rods 402 are spaced apart on the upper surface of the mounting base 401. A weighing platform 403 is mounted on the upper end of each vertical rod 402, and a weighing sensor is installed in the weighing platform 403. When the second vertical cylinder 404 is activated, each vertical rod 402 extends into the corresponding operating channel 106, and the weighing platform 403 supports the corresponding battery casing, thereby achieving the purpose of real-time weighing of the battery casing, ensuring that the amount of adhesive applied is within the expected range, and avoiding excessive or insufficient adhesive application.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 quantitatively applying adhesive to a battery casing, characterized in that: It includes a belt-type passive conveyor mechanism, a vertical feeding mechanism, a vertical picking mechanism, and a belt-type weighing mechanism. The vertical feeding mechanism and the vertical picking mechanism are symmetrically arranged above and below the feeding port of the belt-type passive conveyor mechanism, and the belt-type weighing mechanism is arranged below the discharging port of the belt-type passive conveyor mechanism.

2. The battery casing quantitative adhesive coating device according to claim 1, characterized in that: The belt-driven passive conveying mechanism includes multiple belt drive components arranged side by side, with the same-side ends of the multiple belt drive components connected by a drive connection.

3. The battery casing quantitative adhesive coating device according to claim 2, characterized in that: The belt drive assembly includes two drive wheels spaced apart along the conveying direction of the battery casing. The two drive wheels are connected by a drive belt. In the multiple belt drive assemblies, the drive wheels on the same side are coaxially mounted on a connecting shaft, and fixed seats are rotatably connected to both ends of the connecting shaft.

4. The battery casing quantitative adhesive coating device according to claim 3, characterized in that: Multiple limiting seats are installed at intervals along the extension direction on each of the transmission belts. A housing placement area is formed between four limiting seats that are close to each other in two adjacent belt transmission assemblies, and an operating channel is formed at the center of the housing placement area.

5. The battery casing quantitative adhesive coating device according to claim 1, characterized in that: The vertical material placement mechanism includes a vertical support frame that is open at both the top and bottom. A material placement cavity is formed inside the vertical support frame, and two pneumatic clamping assemblies are symmetrically installed on both sides of the lower part of the vertical support frame.

6. The battery casing quantitative adhesive coating device according to claim 5, characterized in that: Multiple operating notches are provided on both sides of the vertical support frame. The multiple operating notches are spaced apart along the conveying direction of the belt passive conveyor. The clamping ends of each pneumatic clamping component abut against the outer surface of multiple battery casings through the corresponding multiple operating notches.

7. A quantitative adhesive coating device for a battery casing according to claim 6, characterized in that: The pneumatic clamping assembly includes a transverse drive cylinder mounted on the side wall of the vertical support frame. The cylinder rod of the transverse drive cylinder is connected to the adapter seat through a transition bend. Multiple transition posts are installed at intervals on the adapter seat. The multiple transition posts are arranged one-to-one with multiple operating notches. A rubber clamping head is installed on each transition post.

8. A quantitative adhesive coating device for a battery casing according to claim 1, characterized in that: The vertical material handling mechanism includes an air guide seat mounted on the cylinder rod of the first vertical cylinder. Multiple vertical transfer pipes are installed at intervals at one end of the air guide seat near the belt passive conveyor mechanism. A material handling suction cup is connected to the upper end of each vertical transfer pipe. Each vertical transfer pipe is connected to a first connector pipe and a second connector pipe through the air guide seat. Both the first connector pipe and the second connector pipe are constructed on the air guide seat.

9. A quantitative adhesive coating device for a battery casing according to claim 1, characterized in that: The belt-type weighing mechanism includes a weighing component and a belt-type component respectively installed at the upper and lower ends of the second vertical cylinder. The belt-type component includes a linear slide installed at the lower end of the cylinder body of the second vertical cylinder. The linear slide is mounted on a longitudinal guide rail, which extends along the conveying direction of the belt-type passive conveying mechanism.

10. A quantitative adhesive coating device for a battery casing according to claim 9, characterized in that: The weighing assembly includes a mounting base installed on the cylinder rod of the second vertical cylinder, a plurality of vertical rods are installed at intervals on the upper end surface of the mounting base, a weighing platform is installed at the upper end of each of the vertical rods, and a weighing sensor is provided in the weighing platform.

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