Battery cell lead terminal processing device and processing method

Abstract

The application belongs to the technical field of the glue sticking of the lead terminal of the battery cell, and particularly relates to a battery cell lead terminal processing device and a processing method, which comprises a processing assembly line, wherein the processing assembly line is sequentially provided with a tension system, a laser marking device, a glue sticking machine, a first packaging machine, a material pulling machine, a material pressing machine, a material sealing system, a punching machine and a material taking clamp jaw from right to left; the glue sticking machine comprises a base, a pressing mechanism, a hot melting plate, a glue pulling clamp jaw, a glue placing shaft, a fixing plate and a glue guiding block, the pressing mechanism is installed above the base, the hot melting plate is fixedly connected with the output end of the pressing mechanism, the temperature of the hot melting plate is increased after being powered, the fixing plate is fixedly installed on one side of the base, and the glue pulling clamp jaw is installed on the other side of the base. The device solves the problems that two clamp jaws are used to provide the tape tension when the glue is stuck on the tab, the structure cost is increased, the clamping sequence adjustment is difficult, the labor cost is increased, and the production efficiency is greatly reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of the glue sticking of the lead terminal of the battery cell, and particularly relates to a battery cell lead terminal processing device and a processing method. BACKGROUND

[0002] The tab is a core conductive component led out of the battery cell, the lead terminal is a connecting structure for the extension of the tab and the subsequent assembly, and the tab and the lead terminal are essentially "integrated or fixedly connected" to realize the conductive transmission of the battery cell and the external circuit, and the tab surface needs to be glued to realize insulation, short circuit prevention and damage prevention, and ensure the safe and stable operation of the battery.

[0003] The current glue sticking method on the market is to tighten the two ends of the adhesive tape, and then press and fuse the adhesive tape on the tab through pressing and glue dissolving technology. The tightening of the adhesive tape is generally realized by two clamps, which requires adjusting which clamp to operate first and which clamp to operate later, increases the structure cost, and is difficult to deploy, thereby increasing the labor cost and reducing the production efficiency. This phenomenon has become a problem to be solved by personnel in the field. SUMMARY

[0004] The purpose of the present application is to provide a battery cell lead terminal processing device and a processing method to solve the problems in the background art.

[0005] In order to solve the above technical problems, the present application provides the following technical scheme: a battery cell lead terminal processing device and a processing method, comprising a processing flow line, the processing flow line is provided with a tension system, a laser marking device, a glue sticking machine, a first packaging machine, a material pulling machine, a material pressing machine, a material sealing system, a punching machine and a material taking clamp from right to left; the glue sticking machine comprises a base, a pressing mechanism, a hot melting plate, a glue pulling clamp, a glue releasing shaft, a fixed plate and a glue guiding block, the pressing mechanism is installed above the base, the hot melting plate is fixedly connected with the output end of the pressing mechanism, the temperature of the hot melting plate rises after being powered on, the fixed plate is fixedly installed on one side of the base, the glue pulling clamp is installed on the other side of the base and is oppositely arranged with the fixed plate, the glue releasing shaft is rotatably connected to the fixed plate and integrally formed with a limiting plate on the outside, one end of the glue releasing shaft is in a threaded shape and is threadedly connected with a nut, a tab rubber ring is press-fitted and fixed between the nut and the limiting plate, and the tab rubber ring is sleeved on the glue releasing shaft, the glue guiding block is fixed on the base and is provided with a glue guiding groove in the middle, the adhesive tape of the tab rubber ring passes through the glue guiding groove and is located on the tab; one end of the glue releasing shaft is fixedly provided with a speed reducer, the outer side of the speed reducer is provided with a speed reduction ring, the outer side of the speed reduction ring is sleeved with a sleeve, and the sleeve is bolted between the fixed plate and the fixed plate.

[0006] The application further discloses that the deceleration ring comprises a left ring and a right ring which are attached to each other and form a disc shape, the inner side of the left ring is provided with a counterbore upward and downward, and a sliding rod is slidably connected in the counterbores, and the sliding rod is provided with a limiting part at one end; the other end of the sliding rod is rotatably connected to the inner side of the right ring, one side of the left ring and the right ring is attached to a connecting disc, the connecting disc is provided with a sliding groove at one side, and a sliding block is slidably connected in the sliding groove, the sliding block is provided with a limiting part at one end and is welded and fixed to the left ring at the other end, the inner side of the left ring and the right ring is provided with a groove, and the outer side of the deceleration disc is provided with a protrusion which is matched with the groove.

[0007] The application further discloses that one side of the connecting disc is rotatably connected with a screw rod, the screw rod is connected to the inner wall of the sleeve, the left ring has magnetism after being electrified, and the right ring has magnetism by itself.

[0008] The application further discloses that one side of the sleeve is provided with a threaded hole, and the screw rod is threadedly connected in the threaded hole, and the grooves in the inner sides of the left ring and the right ring are conical.

[0009] The application further discloses that the left ring changes the magnetic pole by changing the direction of current.

[0010] The application further discloses that the inner part of the sleeve is filled with half liquid, the wall of the sleeve is provided with a liquid groove, the bottom of the liquid groove is communicated with the inner part of the sleeve, and a sealing ring is arranged between the inner wall of the sleeve and the connecting disc.

[0011] The application further discloses that the processing method comprises the following steps: S1, the tab-shaped pole ear is tensioned by a tension system, and the pole ear is transmitted to a laser marking device to be marked by the laser marking device; S2, after marking, the pole ear is conveyed to a rubber sticking machine to be rubberized and sol-gelized, the rubber tape is hot-melted on the pole ear, and then the pole ear is conveyed to a first packaging machine to extrude the air gun generated at the sticking position of the rubber tape and the pole ear; S3, the rubberized pole ear is sent to a material pulling machine, and the tab-shaped pole ear is pulled by the material pulling machine to be conveyed in the middle section, and then the rubber tape is pressed and combined again by a material pressing machine to be compacted; and S4, a material sealing system is used for material sealing, a punching and cutting machine is used for punching and cutting the tab-shaped pole ear, and a material clamping jaw is used for taking down the processed pole ear.

[0012] The application further discloses that the operation steps of the material sealing system in the step S4 are as follows: second air bubble exhausting, high-temperature heat sealing, low-temperature cold sealing and appearance shaping.

[0013] Compared with the prior art, the present application has the advantages that: the present application adopts integrated pipeline processing, the production efficiency is greatly improved, and during the gluing process of the gluing machine, through the friction between the speed reducer and the speed reduction ring, the tension is provided when the tab tape is discharged, so as to ensure the flatness of the tape and improve the gluing quality. Compared with the way of providing tension by setting clamps at both ends of the tab tape, the cost is reduced, and there is no need to adjust the force matching of the tab tape at both ends. If two glue pulling clamps are used, the clamp that needs to be controlled first and the clamp that needs to be controlled later are needed, the labor cost is also greatly reduced, and the tension applied to the tab tape is stable and continuous, and the gluing quality is further improved.

[0014] Compared with adjusting the strength between the two glue pulling clamps, the tension can be adjusted by rotating the screw alone, the operation is simpler, the control precision of the tension is relatively improved, on the one hand, the glue pulling clamp cannot clamp the tape due to excessive tension, on the other hand, the gluing quality is reduced due to insufficient tension. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:

[0016] Figure 1 is a structure schematic diagram of the gluing machine of the present application;

[0017] Figure 2 is a plan view of the gluing machine of the present application;

[0018] Figure 3 is a schematic diagram of the internal structure of the sleeve of the present application;

[0019] Figure 4 is an exploded view of the internal structure of the sleeve of the present application;

[0020] Figure 5 is a semi-sectional view of the internal structure of the sleeve of the present application;

[0021] Figure 6 is a plan view of the sleeve of the present application;

[0022] In the drawings: 1, base; 2, glue discharging shaft; 21, speed reducer; 22, left ring; 221, sliding rod; 23, right ring; 24, connecting disc; 241, sliding block; 25, screw; 3, fixed plate; 4, glue guide block; 5, sleeve; 51, liquid tank. DETAILED DESCRIPTION

[0023] The technical solutions of the present application will be further and non-restrictively described in detail in combination with preferred embodiments and the drawings of the embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present application.

[0024] Please refer to Figures 1-6 The present application provides technical solutions: an electrode lead terminal processing device and a processing method, comprising a processing assembly line, the processing assembly line is provided with a tension system, a laser marking device, a rubber bonding machine, a first packaging machine, a material pulling machine, a material pressing machine, a material sealing system, a punching machine and a material taking clamp from right to left in sequence;

[0025] The rubber bonding machine comprises a base 1, a pressing mechanism, a hot melting plate, a rubber pulling clamp, a rubber placing shaft 2, a fixed plate 3 and a rubber guiding block 4. The pressing mechanism is installed above the base 1, and the hot melting plate is fixedly connected with the output end of the pressing mechanism. The temperature of the hot melting plate rises after being powered on. The fixed plate 3 is fixedly installed on one side of the base 1. The rubber pulling clamp is installed on the other side of the base 1 and is oppositely arranged with the fixed plate 3. The rubber placing shaft 2 is rotatably connected to the fixed plate 3 and integrally formed with a limiting plate on the outside. One end of the rubber placing shaft 2 is threaded, and a nut is threadedly connected to the end. A tab rubber ring is press-fitted between the nut and the limiting plate, and the tab rubber ring is sleeved on the rubber placing shaft 2. The rubber guiding block 4 is fixed to the base 1, and a rubber guiding groove is formed in the middle of the rubber guiding block 4. The adhesive tape of the tab rubber ring passes through the rubber guiding groove and is located on the tab;

[0026] One end of the rubber placing shaft 2 is fixedly connected with a speed reducer 21, and the outer side of the speed reducer 21 is provided with a speed reduction ring. The outer side of the speed reduction ring is sleeved with a sleeve 5, and the sleeve 5 is bolted between the fixed plate 3;

[0027] The tab is pulled tight by the tension system and transmitted to the laser marking device. The tab is marked by the laser marking device. After marking, the tab is conveyed to the rubber bonding machine for rubber bonding and glue dissolving. The tab adhesive tape is hot-melted on the tab. Then the tab is conveyed to the first packaging machine to extrude the air gun generated at the bonding position of the adhesive tape and the tab. The tab after rubber bonding is sent to the material pulling machine to pull the tab to convey the middle section. The adhesive tape is pressed again by the material pressing machine to compact the adhesive tape and the tab. The material sealing system sequentially performs the operations of second air bubble exhausting, high-temperature heat sealing, low-temperature cold sealing and appearance shaping, so as to fully fuse the tab and the tab adhesive tape. The tab is cut and sheared by the punching machine. The processed tab is taken out by the material taking clamp. The integrated assembly line processing greatly improves the production efficiency.

[0028] During the adhesive application process, the adhesive clamps hold one end of the electrode tab tape and pull the tape so that it is entirely on the electrode tab. Then, the pressing mechanism drives the hot melt plate to move downward and press the electrode tab tape onto the electrode tab. The hot melt plate melts the tape, thus forming an integral part with the electrode tab. After the tape melts and breaks, the electrode tab is conveyed, and the next electrode tab enters, thus applying adhesive continuously.

[0029] When the adhesive clamp pulls the tab tape, the tab rubber ring rotates, which in turn drives the adhesive release shaft 2 to rotate. The rotation of the adhesive release shaft 2 drives the speed reducer 21 to rotate. The friction between the speed reducer 21 and the speed reducer ring provides tension when the adhesive is released from the tab tape, ensuring the straightness of the tape and improving the adhesive application quality. Compared to setting clamps at both ends of the tab tape to provide tension, this method reduces costs and eliminates the need to adjust the force distribution at both ends of the tab tape. Using two adhesive clamps requires controlling which clamps clamp first and which clamps last, significantly reducing labor costs. Furthermore, the tension applied to the tab tape is consistently stable, further improving the adhesive application quality.

[0030] The deceleration ring includes a left ring 22 and a right ring 23. The left ring 22 and the right ring 23 fit together to form a disc shape. The upper and lower inner sides of the left ring 22 are provided with countersunk holes, and a slide rod 221 is slidably connected in the countersunk holes. One end of the slide rod 221 is provided with a limit.

[0031] The other end of the slide rod 221 is rotatably connected to the inside of the right ring 23. A connecting plate 24 is attached to one side of the left ring 22 and the right ring 23. A sliding groove is provided on one side of the connecting plate 24, and a slider 241 is slidably connected in the sliding groove. One end of the slider 241 is provided with a limit position, and the other end is welded and fixed to the left ring 22. Grooves are provided on the inner side of the left ring 22 and the right ring 23. Protrusions are provided on the outer side of the speed reduction disc 21, and the protrusions and grooves cooperate with each other.

[0032] A screw 25 is rotatably connected to one side of the connecting plate 24, and the screw 25 is connected to the inner wall of the sleeve 5. The left ring 22 becomes magnetic after being energized, and the right ring 23 is magnetic itself.

[0033] When the rubber pulling clamp jaw pulls the tab tape, the deceleration disc 21 rotates, the protrusions rub in the grooves of the left ring 22 and the right ring 23, when contacting the inner wall surface of the left ring 22 and the right ring 23, the left ring 22 and the right ring 23 are extruded outward, the left ring 22 slides in the sliding groove through the sliding block 241, the right ring 23 slides in the counterbore through the sliding rod 221, thereby expanding outward, at the same time, the left ring 22 is electrified to generate magnetism and generate magnetic attraction with the right ring 23, when the protrusions are embedded in the grooves again, the left ring 22 and the right ring 23 are reattached under the action of the magnetic attraction, first, the initial tension is generated through the friction between the deceleration disc 21 and the deceleration ring, so that the rubber pulling clamp jaw provides tension when pulling the tab tape, improves the flatness of the tab tape when the rubber is attached, improves the rubber attachment quality, avoids the tab tape from being wrinkled to affect the rubber attachment quality, and then the tension is increased through the magnetic attraction between the left ring 22 and the right ring 23, thereby further improving the flatness of the tab tape.

[0034] The sleeve 5 is provided with a threaded hole on one side, and the screw rod 25 is screwed into the threaded hole, and the grooves in the left ring 22 and the right ring 23 are tapered;

[0035] When the tension is large or small, the operator only needs to rotate the screw rod 25, so that it moves through the threaded hole while rotating, the connecting disc 24 is driven to move by the screw rod 25, the left ring 22 and the right ring 23 are synchronously moved by the connecting disc 24, since the grooves are tapered, after the left ring 22 and the right ring 23 move, the amount of the protrusions of the deceleration disc 21 embedded in the grooves changes under the influence of the tapered surface, thereby when the protrusions and the inner wall of the deceleration ring rub against each other, the extrusion force of the left ring 22 and the right ring 23 is increased or decreased, thereby the tension is increased or decreased, compared with adjusting the strength between the two rubber pulling clamp jaws, the tension can be adjusted only by rotating the screw rod 25, the operation is simpler, the control precision of the tension is relatively improved, on the one hand, it avoids that the rubber pulling clamp jaw cannot hold the tab tape due to excessive tension, on the other hand, it prevents the rubber attachment quality from being reduced due to insufficient tension.

[0036] The left ring 22 changes the current direction to change the magnetic pole;

[0037] When the adhesive tape on the lug rubber ring releases less, the self-weight is heavier, and it is more difficult for the rubber pulling clamp jaw to pull the adhesive tape. At this time, in order to avoid excessive tension from causing the clamp to not hold the adhesive tape, the current direction of the left ring 22 is changed, the magnetic pole is changed, the magnetic repulsion force is generated on the right ring 23, the magnetic repulsion force between the two causes the left ring 22 and the right ring 23 to be fully separated, and the right ring 23 and the left ring 22 are both moved to the limit position to the outside. After the right ring 23 moves to the limit position, it is out of contact with the protrusion of the deceleration disc 21. After the left ring 22 moves to the limit position, it is still in contact with the protrusion of the deceleration disc 21, but the extrusion force is greatly reduced. At this time, the tension applied to the adhesive tape is greatly reduced, so as to fully guarantee the stability of the rubber pulling process, and at the same time, a small amount of tension can be provided to guarantee the flatness of the adhesive tape and the quality of the rubber sticking.

[0038] The inside of the sleeve 5 is filled with half liquid, and a liquid groove 51 is arranged in the wall of the sleeve 5, the bottom of the liquid groove 51 communicates with the inside of the sleeve 5, and a sealing ring is arranged between the inner wall of the sleeve 5 and the connecting disc 24;

[0039] When the left ring 22 and the right ring 23 expand to the outside, the liquid in the sleeve 5 is extruded, and the liquid exerts a reverse force after being stressed, so as to quickly reset the left ring 22 and the right ring 23, avoid the adhesive tape from being loosened when the rubber pulling clamp jaw pulls the adhesive tape due to excessive tension, and quickly reduce the tension while increasing the tension, so as to provide tension in a quick intermittent manner, fully avoid the adhesive tape from being loosened, and avoid the adhesive tape from rebounding quickly after being melted, so as to avoid the need for manual operation to pull the adhesive tape, avoid the phenomenon of continuous manual intervention during operation, greatly reduce the labor cost, and improve the processing efficiency;

[0040] And by arranging the liquid groove 51, the reverse force of the liquid after being stressed is increased, the speed of reducing the tension is further increased, so as to quickly release the adhesive tape after being melted, and fully avoid the phenomenon of adhesive tape rebounding.

[0041] The processing method comprises the following steps:

[0042] Step S1, the tab-shaped lug is pulled tight by the tension system, and the lug is transmitted to the laser marking device for marking by the laser marking device;

[0043] Step S2, after marking, the lug is conveyed to the rubber sticking machine for rubber sticking and glue dissolving, the lug adhesive tape is hot-melted on the lug, and then the lug is conveyed to the first packaging machine to extrude the air gun generated at the lug sticking position;

[0044] Step S3, the lug after rubber sticking is sent to the material pulling machine, the tab-shaped lug is pulled by the material pulling machine, the lug is conveyed in the middle section, and then the lug is pressed by the material pressing machine to compact the lug and the adhesive tape;

[0045] Step S4, the sealing system seals the material, the punching machine cuts the tab into pieces, and then the finished tab is taken out by the clamping jaw.

[0046] The operation steps of the sealing system in step S4 are as follows: second exhaust bubble, high-temperature heat sealing, low-temperature cold sealing, and appearance shaping.

[0047] The tab and the tab tape are fully integrated to improve the quality of the processed tab and fully avoid the subsequent tab and tab tape from falling off.

[0048] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0049] Finally, it should be pointed out that: the above examples are only used to illustrate the technical solutions of the present application, and are not limited thereto. Although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An electrode tab processing apparatus comprising a processing line, characterized by: The processing pipeline is provided with a tension system, a laser marking device, a rubber sticking machine, a first packaging machine, a material pulling machine, a material pressing machine, a material sealing system, a punching machine and a material taking clamp jaw from right to left in sequence; The rubber sticking machine comprises a base (1), a pressing mechanism, a hot melting plate, a rubber pulling clamp jaw, a rubber placing shaft (2), a fixing plate (3) and a rubber guiding block (4), the pressing mechanism is installed above the base (1), the hot melting plate is fixedly connected with the output end of the pressing mechanism, and the temperature of the hot melting plate is increased after being powered on; One end of the rubber placing shaft (2) is fixedly connected with a speed reduction disc (21), a speed reduction ring is arranged outside the speed reduction disc (21), a sleeve (5) is sleeved outside the speed reduction ring, the sleeve (5) and the fixing plate (3) are fixedly connected through bolts, the speed reduction ring comprises a left ring (22) and a right ring (23), the inner side of the left ring (22) is provided with a counterbore on the upper side and the lower side, and a sliding rod (221) is slidably connected in the counterbores, one end of the sliding rod (221) is provided with a limit, the other end of the sliding rod (221) is rotatably connected to the inside of the right ring (23), the inner sides of the left ring (22) and the right ring (23) are provided with recesses, the outer side of the speed reduction disc (21) is provided with protrusions, and the protrusions and the recesses are matched with each other, the left ring (22) has magnetism after being powered on, and the right ring (23) has magnetism by itself.

2. The device for processing the lead terminal of the battery cell according to claim 1, wherein: The fixing plate (3) is fixedly installed on one side of the base (1), the rubber pulling clamp jaw is installed on the other side of the base (1) and is oppositely arranged with the fixing plate (3), the rubber placing shaft (2) is rotatably connected to the fixing plate (3), and a limiting plate is integrally formed outside the rubber placing shaft (2), one end of the rubber placing shaft (2) is in a threaded form, and a nut is threadedly connected to the one end, a tab rubber ring is press-fitted and fixed between the nut and the limiting plate, and the tab rubber ring is sleeved on the rubber placing shaft (2), the rubber guiding block (4) is fixed on the base (1) and is provided with a rubber guiding groove in the middle, the rubber tape of the tab rubber ring passes through the rubber guiding groove and is located on the tab, and the left ring (22) and the right ring (23) are mutually adhered to form a disc shape; One side of the left ring (22) and the right ring (23) is adhered with a connecting disc (24), one side of the connecting disc (24) is provided with a sliding groove, and a sliding block (241) is slidably connected in the sliding groove, one end of the sliding block (241) is provided with a limit, and the other end is fixedly welded with the left ring (22).

3. The device of claim 2, wherein: One side of the connecting disc (24) is rotatably connected with a screw rod (25), and the screw rod (25) is connected to the inner wall of the sleeve (5).

4. The device of claim 3, wherein: One side of the sleeve (5) is provided with a threaded hole, and the screw rod (25) is threadedly connected in the threaded hole, and the recesses in the inner sides of the left ring (22) and the right ring (23) are in a conical shape.

5. The device of claim 4, wherein: The left ring (22) changes the magnetic pole by changing the current direction.

6. The device of claim 5, wherein: The inside of the sleeve (5) is filled with half liquid, the wall of the sleeve (5) is provided with a liquid groove (51), the bottom of the liquid groove (51) is communicated with the inside of the sleeve (5), and a sealing ring is arranged between the inner wall of the sleeve (5) and the connecting disc (24).

7. A method of processing an electrode lead terminal according to claim 1, characterized by: The processing method comprises: Step S1, the tab is pulled tight by the tension system and transmitted to the laser marking device, and then marked by the laser marking device; Step S2, after marking, the tab is transported to the glue sticking machine to stick and dissolve glue, and the tab is hot-melted on the tab, and then transported to the first packaging machine to extrude the air gun generated at the sticking position of the tab and the glue tape; Step S3, the tab after sticking is sent to the pulling machine, and the tab is pulled by the pulling machine to transport the middle section, and then the glue tape is pressed by the pressing machine to compact the glue tape and the tab; Step S4, the sealing system seals, the punching machine cuts and shears the tab, and then the finished tab is taken out by the taking gripper.

8. The method of claim 7, wherein: The operation steps of the sealing system in step S4 are: second air bubble discharge, high-temperature heat sealing, low-temperature cold sealing and appearance shaping.

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