Multi-layer current collector welding equipment

Abstract

The utility model discloses multilayer current collector welding equipment, which relates to the technical field of welding and comprises an equipment shell, a seam welder is arranged in the equipment shell, pressing rollers are rotatably mounted in the equipment shell, a pole piece is arranged between the pressing rollers, copper foils are arranged on the upper surface and the lower surface of the pole piece, and two glue conveying pipes are slidably mounted in the equipment shell. Glue spraying heads are fixedly mounted on the glue conveying pipes, a traction mechanism is arranged in the equipment shell and comprises two conveying rollers rotationally mounted in the equipment shell, driving shafts are fixedly mounted on the conveying rollers, first synchronous gears are fixedly mounted on the driving shafts, and a driving motor is fixedly mounted on the side wall of the equipment shell; one end of the glue conveying pipe is connected with a telescopic mechanism. According to the multi-layer current collector welding equipment, through cooperative use of the traction mechanism and the telescopic mechanism, a conductive adhesive can be uniformly sprayed on a pole piece, so that the pole piece and a copper foil are kept preliminarily fixed, and the welding firmness is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding technical field, concretely is a kind of multilayer current collector welding equipment. BACKGROUND

[0002] Multilayer current collector is an innovative battery structure, which is composed of multiple layers of metal conductive layers and non-metallic support layers. The design of this structure aims to optimize battery performance, improve current conduction efficiency, and ensure the safety and stability of the battery. Through fine layering and welding process, multilayer current collector realizes the close connection and electrical conduction between layers, effectively reduces the internal resistance of the battery, and makes the current density distribution more uniform. At the same time, multilayer current collector also has high tensile strength and good corrosion resistance, which can meet the strict requirements of high-performance batteries for current collectors.

[0003] In the production process of multilayer current collector, in order to ensure that the copper foil can be effectively welded to the pole piece, it is usually necessary to use a roll welding device to complete this key step. However, the automatic roll welding equipment on the market currently faces a common technical problem in actual application, that is, how to improve the welding speed while ensuring the quality of welding. Specifically, when the production efficiency is improved, that is, the welding speed is increased, the phenomenon of false welding often occurs during the welding process, which can cause the connection of the welding points to be not firm enough, thereby affecting the overall performance and reliability of the product. On the other hand, if the welding parameters are increased in order to improve the welding quality, such as increasing the welding current or pressure, although it can reduce the phenomenon of false welding, it will bring new problems, that is, the welding point position may have perforation or light transmission problems, which will also negatively affect the quality of the product. SUMMARY

[0004] The utility model aims at providing a kind of multilayer current collector welding equipment to solve the problem of slow welding speed in prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of multilayer current collector welding equipment, including equipment shell, roll welding machine is equipped in the equipment shell, pressure roller is rotatably installed in the equipment shell, pole piece is equipped between the pressure roller, copper foil is equipped on the upper and lower surfaces of the pole piece, two glue pipes are slidably installed in the equipment shell, glue head is fixedly installed on the glue pipe, traction mechanism is equipped in the equipment shell, the traction mechanism includes two conveying rollers rotatably installed in the equipment shell, drive shaft is fixedly installed on the conveying roller, first synchronous gear is fixedly installed on the drive shaft, drive motor is fixedly installed on the side wall of the equipment shell, and the one end of the glue pipe is connected with telescopic mechanism.

[0006] Preferably, the drive shaft is provided with a transmission shaft at one end, and the transmission shaft is provided with a speed reducer.

[0007] Preferably, the output end of the driving motor is provided with a shaft coupling, and one end of the driving shaft is fixedly installed on the output end of the driving motor through the shaft coupling.

[0008] Preferably, the conveying rollers are rotatably installed in the equipment shell through the driving shaft, the first synchronous gears on the driving shaft are meshed with each other, the equipment shell is provided with a retainer on the side wall, and the transmission shaft is rotatably installed at one end of the driving shaft through the retainer.

[0009] Preferably, the telescopic mechanism comprises a positioning shell fixedly installed on the equipment shell, a telescopic rod slidably installed at one end of the positioning shell, an input shaft rotatably installed at the other end of the positioning shell, a telescopic sliding sleeve fixedly installed on the telescopic rod, a sliding support fixedly installed on the telescopic sliding sleeve, a reciprocating sliding groove seat fixedly installed at the end of the input shaft, and the sliding support is slidably installed in the sliding groove on the reciprocating sliding groove seat, a second synchronous gear fixedly installed on the input shaft, and bevel gears arranged on the input shaft, the transmission shaft and the driving shaft and meshed with each other.

[0010] Preferably, a sliding groove is formed in the equipment shell, and the glue conveying pipe is slidably installed on the equipment shell through the sliding groove.

[0011] Preferably, one end of the telescopic rod is fixedly installed on the glue conveying pipe, the other end of the telescopic rod is fixedly installed on the telescopic sliding sleeve, and the reciprocating sliding groove seat is rotatably installed in the positioning shell through the input shaft.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、in this application, after starting the driving motor, it will drive the driving shaft to rotate. Under the action of the first synchronous gear, the driving shaft can synchronously drive two conveying rollers to rotate, thereby dragging the pole piece and the copper foil to move forward. In the process of moving forward of the pole piece, the glue injection head sprays conductive glue to the surface thereof. Subsequently, the pressing roller presses the copper foil on the surface of the pole piece, realizes the preliminary fixing of the pole piece and the copper foil, enhances the welding firmness, improves the operation speed of the equipment, and the glue coating can absorb part of the pressure, protects the foil from being pressed to pieces, and reduces the welding light transmittance.

[0014] 2、in this application, under the driving of the rotation of the transmission shaft, the input shaft rotates, thereby promoting the reciprocating sliding groove seat to perform the rotary motion in the positioning shell. In this process, the sliding support reciprocally slides along the sliding groove of the reciprocating sliding groove seat, causing the telescopic sliding sleeve to perform the telescopic action. The telescopic motion of the telescopic sliding sleeve drives the telescopic rod to perform the corresponding telescopic activity, finally causing the glue injection head on the glue conveying pipe to swing, realizing the uniform spraying of the conductive glue on the pole piece. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic view of the utility model;

[0016] Figure 2 It is the local structure schematic view of the utility model;

[0017] Figure 3 It is the traction mechanism schematic view of the utility model;

[0018] Figure 4 It is the telescopic mechanism schematic view of the utility model.

[0019] Marked number in the drawing: 1, equipment shell;2, seam welder;3, pole piece;4, copper foil;5, glue spraying head;6, glue conveying pipe;7, pressing roller;8, traction mechanism;801, drive motor;802, drive shaft;803, conveying roller;804, first synchronous gear;805, transmission shaft;806, speed reducer;807, helical gear;9, telescopic mechanism;901, telescopic rod;902, positioning shell;903, telescopic sliding sleeve;904, sliding support leg;905, reciprocating sliding chute seat;906, input shaft;907, second synchronous gear. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts fall within the protection scope of the utility model.

[0021] As Figure 1 and Figure 2 The utility model provides a kind of technical scheme of multilayer current collector welding equipment, including equipment shell 1, seam welder 2 is equipped in equipment shell 1, pressing roller 7 is rotatably installed in equipment shell 1, pole piece 3 is equipped between pressing roller 7, copper foil 4 is equipped on the upper and lower surfaces of pole piece 3, two glue conveying pipes 6 are slidably installed in equipment shell 1, glue spraying head 5 is fixedly installed on glue conveying pipe 6, traction mechanism 8 is equipped in equipment shell 1, one end of glue conveying pipe 6 is connected with telescopic mechanism 9, by the cooperation of traction mechanism 8 and telescopic mechanism 9, conductive glue can be evenly sprayed on pole piece 3, so that pole piece 3 and copper foil 4 are kept preliminary fixed, and welding firmness is increased.

[0022] As Figure 2 and Figure 3As shown, the traction mechanism 8 comprises two conveying rollers 803 rotatably installed in the equipment shell 1, and a driving shaft 802 is fixedly installed on each of the conveying rollers 803, and a first synchronous gear 804 is fixedly installed on the driving shaft 802, and a driving motor 801 is fixedly installed on the side wall of the equipment shell 1, and a transmission shaft 805 is arranged at one end of the driving shaft 802, and a speed reducer 806 is arranged on the transmission shaft 805, and a coupling is arranged at the output end of the driving motor 801, and one end of the driving shaft 802 is fixedly installed on the output end of the driving motor 801 through the coupling.

[0023] Specifically, when the driving motor 801 is started, it will start to drive the driving shaft 802 to rotate. Under the cooperation of the first synchronous gear 804, the driving shaft 802 can effectively drive the two conveying rollers 803 to rotate synchronously. The function of the two conveying rollers 803 is to pull the pole piece 3 and the copper foil 4 to move forward. With the advancement of the pole piece 3, the glue spraying head 5 will timely spray conductive glue to the surface of the pole piece 3. Once the conductive glue is sprayed to the surface of the pole piece 3, the pressing roller 7 will intervene to tightly press the copper foil 4 on the surface of the pole piece 3. This process ensures that the pole piece 3 and the copper foil 4 can maintain a preliminary fixed state, thereby increasing the welding firmness. In addition, such a design can further improve the running speed of the equipment and ensure the production efficiency.

[0024] As shown in Figure 2 and Figure 4 , the telescopic mechanism 9 comprises a positioning shell 902 fixedly installed on the equipment shell 1, a telescopic rod 901 slidingly installed at one end of the positioning shell 902, an input shaft 906 rotatably installed at the other end of the positioning shell 902, a telescopic sliding sleeve 903 fixedly installed on the telescopic rod 901, a sliding support foot 904 fixedly installed on the telescopic sliding sleeve 903, a reciprocating sliding groove seat 905 fixedly installed at the end of the input shaft 906, and the sliding support foot 904 is slidingly installed in the sliding groove on the reciprocating sliding groove seat 905, a second synchronous gear 907 is fixedly installed on the input shaft 906, and a bevel gear 807 is arranged on the input shaft 906, the transmission shaft 805 and the driving shaft 802, and the two bevel gears 807 mesh with each other, and a sliding groove is formed on the equipment shell 1, and the glue feeding pipe 6 is slidingly installed on the equipment shell 1 through the sliding groove.

[0025] Specifically, when the transmission shaft 805 starts to rotate, it will transmit power to the input shaft 906, so that the input shaft 906 also starts to rotate. With the rotation of the input shaft 906, the reciprocating sliding groove seat 905 also starts to rotate inside the positioning shell 902. During the rotation of the reciprocating sliding groove seat 905, the sliding leg 904 will reciprocate along the sliding groove provided on the reciprocating sliding groove seat 905. This reciprocating sliding causes the telescopic sliding sleeve 903 to perform a telescopic action, and the telescopic movement of the telescopic sliding sleeve 903 in turn drives the telescopic rod 901 to perform corresponding telescopic movement. During the telescopic movement of the telescopic rod 901, the glue injection head 5 connected to the glue injection pipe 6 will swing. This swing ensures that the conductive glue can be uniformly sprayed onto the surface of the pole piece 3.

[0026] Working principle: when in use, the driving motor 801 can be started, and after the driving motor 801 is started, it will drive the driving shaft 802 to rotate, and under the action of the first synchronous gear 804, the driving shaft 802 can drive the two conveying rollers 803 to rotate synchronously, and the pole piece 3 and the copper foil 4 are pulled forward. The pole piece 3 can be sprayed with conductive glue on its surface through the glue injection head 5 when it moves forward, and after the conductive glue is sprayed on the surface of the pole piece 3, the copper foil 4 can be pressed on the surface of the pole piece 3 by the pressing roller 7, so that the pole piece 3 and the copper foil 4 are preliminarily fixed, and then the pole piece 3 and the copper foil 4 can be welded together by the seam welding machine 2, and during the rotation of the driving shaft 802, the transmission shaft 805 will rotate, and after the transmission shaft 805 rotates, the input shaft 906 will rotate, and after the input shaft 906 rotates, the reciprocating sliding groove seat 905 will rotate in the positioning shell 902, and when the reciprocating sliding groove seat 905 rotates in the positioning shell 902, the sliding leg 904 will reciprocate along the sliding groove on the reciprocating sliding groove seat 905, so that the telescopic sliding sleeve 903 performs telescopic movement, and when the telescopic sliding sleeve 903 performs telescopic movement, it will drive the telescopic rod 901 to perform telescopic movement, and when the telescopic rod 901 performs telescopic movement, it will drive the glue injection head 5 on the glue injection pipe 6 to swing, so that the conductive glue is uniformly sprayed on the pole piece 3.

[0027] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A multilayer current collector welding device, comprising a device housing (1), a roll welding machine (2) disposed inside the device housing (1), a pressing roller (7) rotatably mounted inside the device housing (1), an electrode (3) disposed between the pressing rollers (7), and copper foil (4) disposed on both the upper and lower surfaces of the electrode (3), characterized in that: Two glue conveying pipes (6) are slidably installed in the equipment shell (1), glue spraying heads (5) are fixedly installed on the glue conveying pipes (6), a traction mechanism (8) is arranged in the equipment shell (1), the traction mechanism (8) comprises two conveying rollers (803) rotatably installed in the equipment shell (1), drive shafts (802) are fixedly installed on the conveying rollers (803), first synchronous gears (804) are fixedly installed on the drive shafts (802), a drive motor (801) is fixedly installed on the side wall of the equipment shell (1), and one end of each glue conveying pipe (6) is connected with an extension mechanism (9).

2. A multi-layer current collector welding apparatus according to claim 1, characterized by: The drive shaft (802) is provided with a transmission shaft (805) at one end, and the transmission shaft (805) is provided with a speed reducer (806).

3. A multi-layer current collector welding apparatus according to claim 2, wherein: The output end of the drive motor (801) is provided with a shaft coupling, and one end of the drive shaft (802) is fixedly installed on the output end of the drive motor (801) through the shaft coupling.

4. A multi-layer current collector welding apparatus according to claim 3, wherein: The conveying roller (803) is rotatably installed in the equipment shell (1) through the drive shaft (802), the first synchronous gears (804) on the drive shafts (802) are meshed with each other, a retainer is arranged on the side wall of the equipment shell (1), and the transmission shaft (805) is rotatably installed at one end of the drive shaft (802) through the retainer.

5. A multi-layer current collector welding apparatus according to claim 4, wherein: The extension mechanism (9) comprises a positioning shell (902) fixedly installed on the equipment shell (1), a telescopic rod (901) slidably installed at one end of the positioning shell (902), an input shaft (906) rotatably installed at the other end of the positioning shell (902), a telescopic sliding sleeve (903) fixedly installed on the telescopic rod (901), sliding legs (904) fixedly installed on the telescopic sliding sleeve (903), a reciprocating sliding groove seat (905) fixedly installed at the end of the input shaft (906), wherein the sliding legs (904) are slidably installed in the sliding grooves in the reciprocating sliding groove seat (905), a second synchronous gear (907) fixedly installed on the input shaft (906), and helical gears (807) arranged on the input shaft (906), the transmission shaft (805) and the drive shaft (802), and the helical gears (807) are meshed with each other in pairs.

6. A multi-layer current collector welding apparatus according to claim 5, wherein: A sliding groove is formed in the equipment shell (1), and the glue conveying pipes (6) are slidably installed in the equipment shell (1) through the sliding groove.

7. A multi-layer current collector welding apparatus according to claim 6, wherein: One end of the telescopic rod (901) is fixedly installed on the glue conveying pipe (6), the other end of the telescopic rod (901) is fixedly installed on the telescopic sliding sleeve (903), and the reciprocating sliding groove seat (905) is rotatably installed in the positioning shell (902) through the input shaft (906).

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