Wire feeding device for evaporation coating

Abstract

The utility model discloses a wire feeding device for evaporation coating in the field of conductive film production, which comprises an evaporation bottom plate, a wire feeding mechanism and an evaporation tank baffle are arranged on the evaporation bottom plate, the wire feeding mechanism comprises a wire feeder and a wire feeding guide pipe, a placing tank is arranged on the evaporation tank baffle, one end of the wire feeding guide pipe is communicated with the wire feeder, and the other end of the wire feeding guide pipe is communicated with the evaporation tank baffle. The other end of the wire feeding guide pipe penetrates through the containing groove to be placed in the evaporation groove, and a mica sleeve is arranged on the outer side of the wire feeding guide pipe in a sleeving mode and installed in the containing groove through an evaporation groove plug pin block. The wire feeding mechanism solves the problems that a wire feeding guide pipe of an existing wire feeding mechanism is prone to softening, falling and making contact with an evaporation tank at the high temperature for a long time, equipment is prone to being damaged, and evaporated film materials can leak out of the evaporation tank from the formed tank and pollute the equipment. The problem of deviation of a wire feeding position caused by downward deviation of a wire feeding guide pipe due to high-temperature softening can be reduced, the wire feeding guide pipe is prevented from falling to be in contact with an evaporation tank, evaporation coating equipment is prevented from being damaged, and pollution to the equipment can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of conductive film production, in particular to a wire feeding device for evaporation coating. Background Art

[0002] Conductive film is a polymer material with copper or aluminum layers plated on the top and bottom surfaces of substrates such as PET and PP. It has a sandwich structure and is also called a composite thin film current collector. It is a type of material with many good properties and is widely used in lithium-ion batteries, mainly as a battery current collector in lithium-ion batteries.

[0003] With the development of the new energy industry, the technical requirements for new energy batteries are constantly increasing. In the process of producing new energy batteries, it is necessary to vacuum-deposit the film material, that is, vacuum evaporation method, referred to as evaporation, refers to a process method in which a certain heating evaporation method is used under vacuum conditions to evaporate the coating material (or film material) and gasify it, and the particles fly to the surface of the substrate to condense into a film. Evaporation is an earlier and more widely used vapor deposition technology, with the advantages of simple film formation method, high film purity and density, and unique film structure and performance.

[0004] Current vacuum evaporation equipment generally uses a linear evaporation device, which includes an evaporation boat in an evaporation tank and a wire feeding mechanism arranged on one or both sides of the evaporation tank. The wire feeding mechanism includes a wire feeding tube. The rolled film wire passes through the wire feeding tube, and then comes out of the wire feeding tube to reach the groove surface of the evaporation boat in the evaporation tank. Since the evaporation tank is connected to the electrode, in order to prevent the wire feeding tube from touching the evaporation tank and conducting, a groove is usually opened on the evaporation tank, so that the wire feeding tube is arranged in the groove at intervals. However, such a setting will have two disadvantages. On the one hand, during the evaporation process of the film material, the temperature is high, and the wire feeding tube is easy to soften at high temperature for a long time, so that it falls and contacts the evaporation tank, so that the wire guide tube is connected to the power supply, which is easy to damage the equipment. On the other hand, the evaporated film material will leak from the opened groove to the outside of the evaporation tank, polluting the equipment.

[0005] The above defects need to be solved urgently. Utility Model Content

[0006] In order to solve the problems that the wire feeding tube of the existing wire feeding mechanism is prone to soften and fall down at high temperature for a long time and contact with the evaporation tank, so that the wire guide tube is connected to the power supply and the equipment is easily damaged, and the evaporated film material will leak from the opened groove to the outside of the evaporation tank and pollute the equipment, the utility model provides a wire feeding device for evaporation coating.

[0007] The technical solution of the utility model is as follows:

[0008] A wire feeding device for evaporation coating comprises an evaporation base plate, on which a wire feeding mechanism and an evaporation tank baffle are arranged, the wire feeding mechanism comprises a wire feeder and a wire feeding duct, the evaporation tank baffle is provided with a placement groove, one end of the wire feeding duct is connected to the wire feeder, and the other end of the wire feeding duct passes through the placement groove and is placed in the evaporation tank, and the outer side of the wire feeding duct is provided with a mica sleeve and is installed in the placement groove through an evaporation tank latch block.

[0009] According to the above-mentioned solution of the utility model, both sides of the placement groove are arc-shaped surfaces, and the arc-shaped surfaces fit the two sides of the evaporation groove latch block, so that the evaporation groove latch block is plugged and fitted in the placement groove.

[0010] According to the above-mentioned solution of the utility model, the wire feeder is installed on the evaporation base plate through an insulating base.

[0011] According to the utility model of the above scheme, the wire feeder includes a wire feeder fixed base, a wire feeding wheel, a wire pressing bearing, a wire pressing rod and a wire feeding motor. The wire feeder fixed base is arranged on the evaporation bottom plate, the wire feeding motor is installed on the wire feeder fixed base, the wire feeding wheel is rotatably installed on the output end of the wire feeding motor, one end of the wire pressing rod is hinged on the top of the wire feeder fixed base, the wire pressing bearing is rotatably installed on the wire pressing rod through the wire pressing roller shaft, and the wire pressing bearing abuts against the wire feeding wheel.

[0012] According to the utility model of the above scheme, a clamping assembly is provided at one end of the screw pressing rod close to the wire feeding wheel, and the clamping assembly includes a clamping screw, which passes through the screw pressing rod and is connected to the fixed base of the wire feeding machine, and a clamping spring is sleeved on the outer side of the clamping screw, and a butterfly nut is provided on the top of the clamping screw, and the butterfly nut abuts against the clamping spring.

[0013] According to the above-mentioned scheme of the utility model, the screw pressing rod is provided with a first mounting hole and a second mounting hole which are distributed up and down, the first mounting hole is connected with the second mounting hole, the clamping screw passes through the first mounting hole and the second mounting hole in sequence and is connected with the fixed base of the wire feeder, and the clamping spring is arranged in the second mounting hole.

[0014] According to the above-mentioned solution of the utility model, the diameter of the first mounting hole is larger than the diameter of the second mounting hole.

[0015] According to the above-mentioned scheme of the utility model, the wire feed duct includes a front wire feed duct and a rear wire feed duct, and the front wire feed duct and the rear wire feed duct are respectively arranged at the front and rear ends of the wire feed wheel, and the end of the front wire feed duct away from the wire feed wheel passes through the placement groove and is arranged in the evaporation tank.

[0016] According to the utility model of the above scheme, a first guide hole and a second guide hole are provided on the fixed base of the wire feeder, the front wire feed guide tube is connected to the first guide hole through a first guide nut, and the rear wire feed guide tube is connected to the second guide hole through a second guide nut.

[0017] According to the utility model of the above scheme, the axis of the wire feeder fixed base forms a certain angle with the length direction of the evaporation bottom plate.

[0018] The utility model according to the above scheme has the following beneficial effects:

[0019] In the above-mentioned wire feeding device for evaporation coating, the position of the wire feeding tube is fixed by using a mica sleeve and an evaporation tank latch block, which can reduce the problem of deviation in the wire feeding position caused by the wire feeding tube shifting downward due to high temperature softening, prevent the wire feeding tube from falling and contacting the evaporation tank, and prevent damage to the evaporation coating equipment. In addition, the mica sleeve can also play an insulating role, preventing the circuit between the wire feeding tube and the evaporation tank from being turned on, thereby further reducing the risk of equipment damage. In addition, the evaporation tank latch block completes the part of the evaporation tank baffle corresponding to the evaporation tank, preventing the evaporated material from splashing onto the wire feeder outside the evaporation tank, avoiding equipment contamination, thereby extending the service life of the wire feeder and the entire evaporation coating equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 This is a disassembled diagram of the utility model;

[0022] Figure 3 It is a cross-sectional view of the utility model;

[0023] Figure 4 for Figure 3 Enlarged view of part A.

[0024] In the figure, 1, evaporation base plate; 2, wire feeding mechanism; 21, wire feeding machine; 211, wire feeding machine fixing base; 2111, first guide hole; 2112, second guide hole; 212, wire feeding wheel; 213, wire pressing bearing; 214, wire pressing rod; 2141, first mounting hole; 2142, second mounting hole; 215, wire feeding motor; 216, wire pressing roller; 22, wire feeding guide tube; 221, front wire feeding guide tube; 222, rear wire feeding guide tube; 23, clamping assembly; 231, clamping screw; 232, clamping spring; 233, butterfly nut; 24, first guide nut; 25, second guide nut; 3, evaporation tank baffle; 31, placement slot; 4, mica sleeve; 5, evaporation tank latch block; 6, insulating base; 7, membrane wire. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] like Figure 1 As shown, the utility model provides a wire feeding device for evaporation coating, including an evaporation base plate 1, on which a wire feeding mechanism 2 and an evaporation tank baffle 3 are arranged, the wire feeding mechanism 2 is used to transport the rolled film material wire 7 to the tank surface of the evaporation boat in the evaporation tank; the evaporation tank baffle 3 is located between the wire feeding mechanism 2 and the evaporation tank, thereby separating the wire feeding mechanism 2 from the evaporation tank to prevent interference and contamination that may occur during the wire feeding process. In addition, the film material wire 7 can be copper wire, aluminum wire, etc., and the material of the film material wire 7 can be designed according to actual needs during actual design.

[0027] like Figure 1 , Figure 2 As shown, in this embodiment, the wire feeding mechanism 2 includes a wire feeder 21 and a wire feeding duct 22, and a placement groove 31 is provided on the evaporation tank baffle 3. The placement groove 31 provides a space for the wire feeding duct 22 to pass through. One end of the wire feeding duct 22 is connected to the wire feeder 21, and the other end of the wire feeding duct 22 passes through the placement groove 31 and is placed in the evaporation tank, thereby ensuring the continuity and stability of the wire feeding process. In addition, the outer side of the wire feeding duct 22 is provided with a mica sleeve 4, and is installed in the placement groove 31 through the evaporation tank latch block 5. The position of the wire feeding duct 22 is fixed by the mica sleeve 4 and the evaporation tank latch block 5, which can reduce the problem of deviation in the wire feeding position caused by the downward displacement of the wire feeding duct 22 due to high temperature softening, prevent the wire feeding duct 22 from falling and contacting the evaporation tank, and prevent damage to the evaporation coating equipment. In addition, the mica sleeve 4 can also play an insulating role, preventing the circuit between the wire feeding duct 22 and the evaporation tank from being connected, thereby further reducing the risk of equipment damage. In addition, the evaporation tank latch block 5 completes the portion of the evaporation tank baffle 3 corresponding to the evaporation tank, preventing the evaporated material from splashing onto the wire feeder 21 outside the evaporation tank, avoiding equipment contamination, thereby extending the service life of the wire feeder 21 and the entire evaporation coating equipment.

[0028] like Figure 2As shown, in this embodiment, the two sides of the placement slot 31 are arc-shaped surfaces, and the two sides of the evaporation slot latch block 5 are designed to match the arc-shaped surface of the placement slot 31. The arc-shaped surface fits the two sides of the evaporation slot latch block 5, so that the evaporation slot latch block 5 is plugged into the placement slot 31. It is not only easy to install, but also can ensure that the wire feeding guide tube 22 will not shake or fall off during long-term use, thereby ensuring the stability and continuity of the wire feeding process. In addition, the arc-shaped surface design of the placement slot 31 can also reduce the friction and resistance during the plug-in process, so that the evaporation slot latch block 5 can be inserted into the placement slot 31 more smoothly, which can not only improve the installation efficiency, but also reduce the wear caused by friction, and extend the service life of the equipment.

[0029] like Figures 1 to 3 As shown, in this embodiment, the wire feeder 21 is installed on the evaporation base plate 1 through the insulating base 6. The insulating base 6 can ensure good electrical isolation between the wire feeder 21 and the evaporation base plate 1. The insulating base 6 can effectively prevent the current from flowing from the wire feeder 21 to the evaporation base plate 1, thereby avoiding potential electrical failures and safety hazards. Secondly, the insulating base 6 also has a certain shock absorption and buffering effect. During the wire feeding process, the wire feeder 21 may produce certain vibrations and shocks. By installing the insulating base 6, the impact of these vibrations and shocks on the evaporation base plate 1 can be effectively reduced, ensuring the stability and reliability of the entire wire feeding device. In addition, the insulating base 6 can also facilitate the installation and disassembly of the wire feeder 21. If the wire feeder 21 needs to be maintained or replaced, the wire feeder 21 can be removed from the evaporation base plate 1 by simply removing the connector on the insulating base 6, which not only improves the maintenance efficiency but also reduces the difficulty of operation.

[0030] like Figure 2 , Figure 3As shown, in this embodiment, the wire feeder 21 includes a wire feeder fixed base 211, a wire feeder wheel 212, a wire pressing bearing 213, a wire pressing rod 214 and a wire feeder motor 215. The wire feeder fixed base 211 is arranged on the evaporation base plate 1. The axis of the base of the wire feeder fixed base 211 forms a certain angle with the length direction of the evaporation base plate 1, which helps to adjust the direction and angle of wire feeding to meet different process requirements. The wire feeder motor 215 is installed on the wire feeder fixed base 211, and the wire feeder wheel 212 is rotatably installed at the output end of the wire feeder motor 215. When the wire feeder motor 215 rotates, the wire feeder wheel 212 also rotates, thereby driving the film material wire 7 to be transported. One end of the wire pressing rod 214 is hinged on the top of the fixed base 211 of the wire feeder, and the wire pressing bearing 213 is rotatably mounted on the wire pressing rod 214 through the wire pressing roller 216, and the wire pressing bearing 213 is in contact with the wire feeding wheel 212. The wire pressing bearing 213 is used to assist the wire feeding wheel 212 to ensure that the film material wire 7 remains stable during the conveying process to prevent it from deflecting or slipping, and the degree of compression of the film material wire 7 by the wire pressing bearing 213 can be changed by adjusting the angle and position of the wire pressing rod 214. When feeding, the film material wire 7 passes between the wire pressing bearing 213 and the wire feeding wheel 212. When feeding, the film material wire 7 passes between the wire pressing bearing 213 and the wire feeding wheel 212. When the wire feeding motor 215 is started and drives the wire feeding wheel 212 to rotate, the film material wire 7 is conveyed to the designated evaporation tank under the friction of the wire feeding wheel 212.

[0031] like Figure 2 , Figure 3 As shown, in this embodiment, a clamping assembly 23 is provided at one end of the pressing rod 214 close to the wire feeding wheel 212, and the pressing assembly 23 enables the wire pressing bearing 213 to press the film material wire 7 onto the wire feeding wheel 212, so that the film material wire 7 can be transported as the wire feeding wheel 212 rotates. The clamping assembly 23 includes a clamping screw 231, which passes through the pressing rod 214 and is connected to the fixed base 211 of the wire feeding machine, and a clamping spring 232 is sleeved on the outer side of the clamping screw 231, and a butterfly nut 233 is provided on the top of the clamping screw 231, and the butterfly nut 233 abuts against the clamping spring 232. By adjusting the position of the clamping screw 231, the clamping force of the wire pressing bearing 213 on the film material wire 7 can be changed. The clamping spring 232 is used to provide a certain elasticity to ensure uniform and stable clamping force, and the butterfly nut 233 is convenient for the user to manually adjust the clamping screw 231, thereby realizing rapid adjustment of the clamping force.

[0032] like Figure 3 , Figure 4As shown, in this embodiment, the screw rod 214 is provided with a first mounting hole 2141 and a second mounting hole 2142 which are distributed up and down, the first mounting hole 2141 is connected with the second mounting hole 2142, the clamping screw 231 passes through the first mounting hole 2141 and the second mounting hole 2142 in sequence and is connected with the fixed base 211 of the wire feeder, and the precise adjustment and control of the connection between the screw rod 214 and the wire feeder 21 is achieved by adjusting the position and tightening degree of the clamping screw 231. In addition, the clamping spring 232 is arranged in the second mounting hole 2142, and the function of the clamping spring 232 is to provide elastic force so that the screw rod 214 can maintain a certain pressure or tension. When the clamping screw 231 is tightened, it compresses the clamping spring 232, so that the spring generates elastic force, and through this elastic force, the stability of the screw rod 214 and the firm connection with the wire feeder 21 are maintained. In addition, the diameter of the first mounting hole 2141 is greater than the diameter of the second mounting hole 2142 , so that the stabilizing compression spring 232 is installed in the second mounting hole 2142 .

[0033] like Figure 3 , Figure 4 As shown, in this embodiment, the wire feeding duct 22 includes a front wire feeding duct 221 and a rear wire feeding duct 222, and the front wire feeding duct 221 and the rear wire feeding duct 222 are respectively arranged at the front and rear ends of the wire feeding wheel 212, forming a complete conveying channel. The main function of the front wire feeding duct 221 is to guide the film material wire 7 from the wire feeding wheel 212 to the evaporation tank. One end of the front wire feeding duct 221 is adjacent to the wire feeding wheel 212 to ensure that the film material wire 7 can be smoothly obtained from the wire feeding wheel 212. The other end of the front wire feeding duct 221 passes through the placement groove 31 and directly extends into the evaporation tank, so that the film material wire 7 can directly and efficiently enter the evaporation tank, reducing friction and resistance during the conveying process. The rear wire feeding duct 222 is located at the other end of the wire feeding wheel 212, and the rear wire feeding duct 222 is mainly responsible for guiding the film material wire 7 from the rear of the wire feeding mechanism 2 to the wire feeding wheel 212. The rear wire feeding guide tube 222 and the front wire feeding guide tube 221 work together to ensure the stability and continuity of the film material wire 7 during the wire feeding process.

[0034] like Figure 3 , Figure 4As shown, in this embodiment, a first guide hole 2111 and a second guide hole 2112 are provided on the fixed base 211 of the wire feeder, the front wire guide tube 221 is connected to the first guide hole 2111 through the first guide nut 24, and the rear wire guide tube 222 is connected to the second guide hole 2112 through the second guide nut 25. The first guide hole 2111 and the second guide hole 2112 are provided so that the front wire guide tube 221 and the rear wire guide tube 222 can be accurately fixed on the base and maintain a stable guiding effect. In addition, the design of the first guide nut 24 and the second guide nut 25 makes the installation and removal of the wire guide tube 22 more convenient and quick. By simply rotating the nut, the wire guide tube 22 can be easily fixed on the base or removed, which greatly improves the maintainability and operation convenience of the equipment.

[0035] When the present novel device is in use, the rolled film material wire 7 passes through the rear wire feeding duct 222 after being unwound, and passes between the wire pressing bearing 213 and the wire feeding wheel 212, and the wire pressing bearing 213 presses the film material wire 7 onto the wire feeding wheel 212 through the clamping mechanism, so that the film material wire 7 is transported from the front wire feeding duct 221 to the evaporation tank as the wire feeding wheel 212 rotates, thereby realizing the wire feeding of the film material wire 7.

[0036] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

[0037] The above is an exemplary description of the utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model patent is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the utility model patent, or the concept and technical solution of the utility model patent are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A wire feeding device for evaporation coating, characterized in that: It includes an evaporation base plate, on which a wire feeding mechanism and an evaporation tank baffle are arranged, the wire feeding mechanism includes a wire feeder and a wire feeding duct, the evaporation tank baffle is provided with a placement groove, one end of the wire feeding duct is connected to the wire feeder, and the other end of the wire feeding duct passes through the placement groove and is placed in the evaporation tank, and the outer side of the wire feeding duct is provided with a mica sleeve, and is installed in the placement groove through an evaporation tank latch block.

2. The wire feeding device for evaporation coating according to claim 1, characterized in that: Both sides of the placement groove are arc-shaped surfaces, and the arc-shaped surfaces fit the two sides of the evaporation groove latch block, so that the evaporation groove latch block is plugged and fitted in the placement groove.

3. The wire feeding device for evaporation coating according to claim 1, characterized in that: The wire feeder is mounted on the evaporation base plate via an insulating base.

4. The wire feeding device for evaporation coating according to any one of claims 1 to 3, characterized in that: The wire feeder includes a wire feeder fixed base, a wire feeding wheel, a wire pressing bearing, a wire pressing rod and a wire feeding motor. The wire feeder fixed base is arranged on the evaporation bottom plate, the wire feeding motor is installed on the wire feeder fixed base, the wire feeding wheel is rotatably installed on the output end of the wire feeding motor, one end of the wire pressing rod is hinged on the top of the wire feeder fixed base, the wire pressing bearing is rotatably installed on the wire pressing rod through a wire pressing roller shaft, and the wire pressing bearing abuts against the wire feeding wheel.

5. The wire feeding device for evaporation coating according to claim 4, characterized in that: A clamping assembly is provided at one end of the screw rod close to the wire feeding wheel, and the clamping assembly includes a clamping screw, which passes through the screw rod and is connected to the fixed base of the wire feeding machine, and a clamping spring is sleeved on the outer side of the clamping screw, and a butterfly nut is provided on the top of the clamping screw, and the butterfly nut abuts against the clamping spring.

6. The wire feeding device for evaporation coating according to claim 5, characterized in that: The screw pressing rod is provided with a first mounting hole and a second mounting hole which are distributed up and down. The first mounting hole is connected with the second mounting hole. The clamping screw passes through the first mounting hole and the second mounting hole in sequence and is connected with the fixed base of the wire feeder, and the clamping spring is arranged in the second mounting hole.

7. The wire feeding device for evaporation coating according to claim 6, characterized in that: A diameter of the first mounting hole is greater than a diameter of the second mounting hole.

8. The wire feeding device for evaporation coating according to claim 4, characterized in that: The wire feeding duct includes a front wire feeding duct and a rear wire feeding duct, the front wire feeding duct and the rear wire feeding duct are respectively arranged at the front and rear ends of the wire feeding wheel, and the end of the front wire feeding duct away from the wire feeding wheel passes through the placement groove and is arranged in the evaporation tank.

9. The wire feeding device for evaporation coating according to claim 8, characterized in that: The wire feeder fixed base is provided with a first guide hole and a second guide hole. The front wire feed guide tube is connected to the first guide hole through a first guide nut, and the rear wire feed guide tube is connected to the second guide hole through a second guide nut.

10. The wire feeding device for evaporation coating according to any one of claims 1 to 3 or 5 to 9, characterized in that: The axis of the wire feeder fixing base forms a certain angle with the length direction of the evaporation bottom plate.

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