A battery screen printing device

Abstract

The present invention relates to the technical field of printing equipment, and in particular to a battery screen printing equipment, which includes a workbench as the carrier of the entire equipment. A conveyor for conveying battery plates is installed on one side of the workbench. A printing mechanism for printing battery plates is provided on the workbench, and a conveying mechanism for conveying battery plates is also provided on the workbench. The conveying mechanism includes a housing fixed to the workbench. An electric slide rail is installed in the housing. A transmission block is slidably connected in the electric slide rail. An electric telescopic rod is fixedly installed on the transmission block. The output end of the electric telescopic rod is fixedly connected to a frame body. A paint head for spraying paint is provided at the bottom of the frame body. A brush a for coating paint is also provided at the bottom of the frame body. A screen for transferring paint is fixedly connected to the frame body. A pushing assembly for pushing the remaining material is provided on the screen. By pushing the paint on both sides of the guide back to the original position, the present invention realizes the reuse of the paint, thereby saving the use of the paint.

Description

Technical Field

[0001] The present invention relates to the technical field of printing equipment, and specifically relates to a battery screen printing equipment. Background Art

[0002] The battery screen printing equipment is mainly used for the screen printing process of printing battery electrodes on a battery panel. First, a coating spray head will lay the coating on the screen. Subsequently, the printing equipment uses the movement of a brush piece to coat the coating on the battery panel. However, there will be a certain error in the amount of coating laid at each position on the screen, resulting in the excess coating being pushed to both sides of the original coating range during the movement of the brush piece. The printing equipment will recycle and reuse the excess coating. Recycling the residual coating requires collecting the coating through pipes or components, and then adding the old coating to the material box. After the coating is placed for a period of time, it will be affected by factors such as oxidation, volatilization, and temperature changes, resulting in a decrease in the stability of the coating, thereby affecting the printing quality. Moreover, there will be certain differences in the recycled coatings of different batches. When the recycled coating is mixed with fresh coating for use, it will also affect the printing effect. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the present invention provides a battery screen printing equipment, which has the advantage of being able to directly use the surplus material, avoiding the problem of the coating being placed and cooled for a long time, and solves the problem that the stability of the coating decreases due to factors such as oxidation, volatilization, and temperature changes, thereby affecting the printing quality.

[0004] To solve the above technical problems, the present invention provides the following technical solutions:

[0005] A battery screen printing equipment includes a workbench as the carrier of the entire equipment. On one side of the workbench, a conveyor for conveying the battery panel is installed. A printing mechanism for printing the battery panel is provided on the workbench. A conveying mechanism for conveying the battery panel is also provided on the workbench. The conveying mechanism includes a housing fixed to the workbench. An electric slide rail is installed inside the housing. A transmission block is slidably connected inside the electric slide rail. An electric telescopic rod is fixedly installed on the transmission block. The output end of the electric telescopic rod is fixedly connected to a frame body. A coating head for spraying the coating is provided at the bottom of the frame body. A brush piece a for coating the coating is also provided at the bottom of the frame body. A screen for transferring the coating is fixedly connected to the frame body. A pushing assembly for pushing the surplus material is provided on the screen.

[0006] Preferably, the pushing component includes load-bearing plates fixed to both sides of the wire mesh. A transmission bar is slidably connected to the load-bearing plates. A brush piece b for pushing the edge material is provided on the transmission bar. A load-bearing plate is fixedly connected to the end of the transmission bar. A spring is fixedly connected between the load-bearing plate and the weight-bearing plate. A connecting rod a is fixedly connected to the weight-bearing plate. A sphere a is fixedly connected to the end of the connecting rod a. A pushing block for pushing the brush piece b to move inward is fixedly connected to the outside of the coating head. Laser thickness gauges for detecting the thickness of the residual coating on the edge are provided on both sides of the coating head. A sealing piece for the coating head switch is also provided on the coating head. An electric push rod for driving the movement of the sealing piece is installed on the coating head. A lifting component for lifting the brush piece b is provided on the wire mesh.

[0007] Preferably, the lifting component includes an outer frame fixed to the end of the transmission bar. A slider is slidably connected inside the outer frame. A connecting bar is fixedly connected between the slider and the brush piece b. A tension spring is fixedly connected between the slider and the inner top wall of the outer frame. A connecting rod b slidably connected to the outer frame is fixedly connected to the slider. A box body is fixedly connected to the load-bearing plate. A sphere b is fixedly connected to the end of the connecting rod b. A guiding bar for changing the position of the brush piece b is provided inside the box body.

[0008] Preferably, inclined sides a and b are respectively provided on both sides of the guiding bar. The inclined states of the inclined sides a and b are inclined downward from top to bottom towards the brush piece b.

[0009] Preferably, the maximum height at which the tension spring stretches the sphere b in the static state is lower than the highest point of the guiding bar.

[0010] Preferably, a motor is fixedly installed inside the frame. A spur gear a is sleeved on the output shaft of the motor. A rack meshing with the spur gear a is fixedly connected to the brush piece a and the coating head. The coating head and the brush piece a are staggeredly distributed. The rack is slidably connected to the frame through a sliding groove.

[0011] Preferably, the conveying mechanism includes a transmission disk rotatably installed on the workbench. A plurality of conveyor belts are provided on the transmission disk. Limiting grooves for placing the battery panels are provided on both sides of the conveyor belts. A transmission member for driving the plurality of conveyor belts to operate is provided on the workbench.

[0012] Preferably, the transmission member includes a drive shaft fixed to the driving roller on the conveyor belt. A plurality of rotating shafts are rotatably installed on the transmission disk. Bevel gears engaged for transmission are sleeved on the rotating shaft and the adjacent drive shaft. An outer ring is fixedly connected inside the workbench. Tooth groups corresponding to the spur gear b are fixedly connected to the outer wall of the outer ring.

[0013] Preferably, a motor for conveying the battery panel is fixedly installed inside the workbench. The output end of the motor is fixedly connected to the transmission disk.

[0014] Preferably, a weight-bearing seat for supporting the battery panel is fixedly connected to the workbench. The weight-bearing seat is located in the middle of the conveyor belt, and the inner side of the conveyor belt is in contact with the weight-bearing seat.

[0015] With the above technical solution, the present invention provides a battery screen printing device, which has at least the following beneficial effects:

[0016] 1. This battery screen printing device can push the paint that is guided to both sides during the movement of the paint head back to the original position again. It does not require centralized recovery of the paint, reducing steps, and can directly use the surplus material, avoiding the problem of the paint being placed for a long time and cooling. Moreover, by reusing the same paint, it can ensure the consistency of the paint during the printing process, contributing to obtaining a stable printing effect. For traditional printing devices, the paint pipelines and mechanisms for recycling and reuse need to be cleaned and maintained regularly, otherwise problems such as pipeline blockage and mechanism failure may occur.

[0017] 2. This battery screen printing device can detect the thickness of the surplus material pushed to the printing position by a laser thickness gauge, and then the solenoid valve can spray the corresponding amount of paint according to the amount of surplus material, avoiding the situation of excessive paint, thus avoiding uneven distribution of paint during the printing process and improving the printing quality.

[0018] 3. This battery screen printing device, after pushing the surplus material, the sphere moves along the contour on the guiding strip, so that the brush piece no longer contacts the screen. By avoiding pushing the paint back again, it helps to ensure the printing quality and avoid printing quality problems caused by the re-pushing of the edge paint.

[0019] 4. This battery screen printing device can then drive the conveyor belt to run to achieve blanking, which can reduce the use of sensors, lower the manufacturing difficulty of the device, achieve linkage operation, and reduce errors during the operation process.

[0020] 5. This battery screen printing device, traditional printing devices often cause waste of paint during the movement of the paint, while the design of the pushing component can push the paint that is guided to both sides back to the original position again, realizing the reuse of the paint, thus saving the use of paint. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and form a part of this application:

[0022] Figure 1 It is a three-dimensional structure schematic diagram in the front view direction of the present invention;

[0023] Figure 2 It is a structure schematic diagram of the printing mechanism of the present invention;

[0024] Figure 3 It is an external connection structure schematic diagram of the paint head of the present invention;

[0025] Figure 4Schematic diagram of the structure of the pushing component of the present invention;

[0026] Figure 5 Schematic diagram of the external connection structure of the brush piece b of the present invention;

[0027] Figure 6 For the present invention Figure 5 Enlarged view of part A;

[0028] Figure 7 Schematic diagram of the structure of the conveying mechanism of the present invention;

[0029] Figure 8 Schematic diagram of the structure of the transmission member of the present invention.

[0030] Reference numerals:

[0031] 100, workbench; 101, conveyor;

[0032] 200, printing mechanism; 201, housing; 202, electric slide rail; 203, transmission block; 204, electric telescopic rod; 205, frame; 206, coating head; 207, brush piece a; 208, laser thickness gauge; 209, pushing component; 2091, push block; 2092, sphere a; 2093, connecting rod a; 2094, brush piece b; 2095, connecting strip; 2096, load-bearing plate; 2097, transmission strip; 2098, spring; 210, wire mesh; 211, motor; 212, spur gear a; 213, rack; 214, external pipeline; 215, sealing piece;

[0033] 300, conveying mechanism; 301, motor; 302, transmission disc; 303, load-bearing seat; 304, conveyor belt; 305, limiting groove; 306, transmission member; 3061, outer ring; 3062, tooth group; 3063, rotating shaft; 3064, spur gear b; 3065, driving shaft; 3066, bevel gear;

[0034] 400, lifting component; 401, outer frame; 402, tension spring; 403, slider; 404, connecting rod b; 405, sphere b; 406, box body; 407, guiding strip; 408, hypotenuse a; 409, hypotenuse b. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] The following describes a battery screen printing device provided by some embodiments of the present invention in conjunction with the accompanying drawings.

[0037] Embodiment 1:

[0038] Combined Figures 1 - 3 As shown in the figure, a battery screen 210 printing device provided by the present invention includes a workbench 100 serving as the carrier of the entire device. A conveyor 101 for conveying battery plates is installed on one side of the workbench 100. After the battery plates are printed, the conveyor 101 can convey them away, realizing automated processing. A printing mechanism 200 for printing battery plates is provided on the workbench 100, and a conveying mechanism 300 for conveying battery plates is also provided on the workbench 100, which conveys the battery plates in sequence, facilitating the improvement of work efficiency.

[0039] The conveying mechanism 300 includes a housing 201 fixed to the workbench 100. An electric slide rail 202 is installed inside the housing 201. A transmission block 203 is slidably connected inside the electric slide rail 202. An electric telescopic rod 204 is fixed on the transmission block 203. The output end of the electric telescopic rod 204 is fixedly connected to a frame 205. A paint head 206 for spraying paint is provided at the bottom of the frame 205. An external pipeline 214 is fixed to the paint head 206. A solenoid valve is installed on the external pipeline 214. A brush piece a207 for smoothing the paint is also provided at the bottom of the frame 205. A screen 210 for transferring the paint is fixed to the frame 205. The external pipeline 214 introduces the paint into the paint head 206. Subsequently, the paint head 206 sprays the paint onto the screen 210. The electric slide rail 202 drives the paint head 206 to translate, so that the paint is evenly laid on the screen 210. Subsequently, the paint head 206 rises, and the brush piece a207 descends to fit with the screen 210. The free end of the electric telescopic rod 204 descends, causing the frame 205 and the screen 210 as a whole to descend, so that the screen 210 is attached to the battery plate. Subsequently, the electric slide rail 202 starts to drive the frame 205 on the transmission block 203 to translate. The brush piece a207 moves along with the frame 205 to penetrate the paint on the screen 210 into the battery plate to achieve printing. Subsequently, the free end of the transmission block 203 rises to separate the screen 210 from the battery plate. The translation and descent of the paint head 206 enable the paint to be evenly laid on the screen 210, and through the movement of the brush piece a207, the paint can evenly penetrate into the battery plate, ensuring the printing quality.

[0040] A pushing component 209 for reusing the paint is provided on the screen 210. The pushing component 209 can push the paint guided to both sides during the movement of the paint head 206 back to the original position again, enabling the paint to be reused again, which can reduce the waste of paint and thus save costs.

[0041] According to the embodiment, it is not necessary to centrally recycle the coating, which reduces the steps. The surplus material can be directly used, avoiding the problem of the coating being placed and cooled for a long time. Moreover, by reusing the same coating, the consistency of the coating during the printing process can be ensured, which helps to obtain a stable printing effect.

[0042] Embodiment 2:

[0043] Combined with Figures 2 - 5 As shown, on the basis of Embodiment 1, the pushing component 209 includes load-bearing plates fixed on both sides of the wire mesh 210. A transmission strip 2097 is slidably connected to the load-bearing plates. A brush piece b2094 for pushing the edge material is provided on the transmission strip 2097. A load-bearing plate 2096 is fixedly connected to the end of the transmission strip 2097. A spring 2098 is fixedly connected between the load-bearing plate 2096 and the load-bearing plate. A connecting rod a2093 is fixedly connected to the load-bearing plate 2096. A sphere a2092 is fixedly connected to the end of the connecting rod a2093. A push block 2091 for pushing the brush piece b2094 to move inward is fixedly connected to the outside of the coating head 206. When the electric slide rail 202 moves, the push block 2091 contacts the sphere a2092 and pushes it to move inward. The sphere a2092 drives the load-bearing plate 2096 to move through the connecting rod a2093. The transmission strip 2097 on the brush piece b2094 moves along with the load-bearing plate 2096. Then, the coating at the edge can be pushed back to the position of the wire mesh 210 for printing. Subsequently, the push block 2091 disengages from the sphere a2092, and the transmission strip 2097 pushes the brush piece b2094 connected to the transmission strip 2097 to reset. Laser thickness gauges 208 for detecting the thickness of the residual coating at the edge are provided on both sides of the coating head 206. A sealing piece 215 for the switch of the coating head 206 is also provided on the coating head 206. The laser thickness gauge 208 can detect the thickness of the surplus material pushed to the printing position. Subsequently, the solenoid valve can spray the corresponding amount of coating according to the amount of surplus material, avoiding excessive coating. An electric push rod for driving the sealing piece 215 to operate is installed on the coating head 206. When the coating is not sprayed, the electric push rod can drive the sealing piece 215 to move back and close the coating head 206. A lifting component 400 for lifting the brush piece b2094 is provided on the wire mesh 210.

[0044] According to the embodiment, spraying the corresponding amount of coating according to the amount of surplus material avoids the situation of excessive coating, thereby avoiding the uneven distribution of the coating during the printing process and improving the printing quality.

[0045] Embodiment 3:

[0046] Combined with Figures 3 - 6As shown, on the basis of the first embodiment, the lifting assembly 400 includes an outer frame 401 fixedly connected to the end of the transmission bar 2097. A slider 403 is slidably connected inside the outer frame 401. A connecting bar 2095 is fixedly connected between the slider 403 and the brush piece b2094. A tension spring 402 is fixedly connected between the slider 403 and the inner top wall of the outer frame 401. A connecting rod b404 slidably connected to the outer frame 401 is fixedly connected to the slider 403. A box body 406 is fixedly connected to the load-bearing plate. A sphere b405 is fixedly connected to the end of the connecting rod b404. A guiding bar 407 for changing the position of the brush piece b2094 is provided inside the box body 406. Initially, the sphere b405 is located at the bottom of the guiding bar 407, so that the connecting rod b404 on the sphere b405 is also at the bottom. Subsequently, the brush piece b2094 connected to the connecting bar 2095 fits the wire mesh 210. Then, when the brush piece b2094 moves, it can push the edge coating to the original printing position on the wire mesh 210. After the sphere b405 disengages from the guiding bar 407, the tension spring 402 pulls the slider 403 upward, causing the brush piece b2094 on the connecting bar 2095 to rise. Subsequently, the sphere b405 moves along the contour on the guiding bar 407, so that the brush piece b2094 no longer contacts the wire mesh 210. By avoiding pushing the coating back again, it helps to ensure the printing quality and avoid printing quality problems caused by the re-pushing of the edge coating.

[0047] On both sides of the guiding bar 407, there are respectively a hypotenuse a408 and a hypotenuse b409. The hypotenuse a408 and the hypotenuse b409 are inclined downward from top to bottom towards the brush piece b2094. After the sphere b405 disengages from the guiding bar 407, the tension spring 402 pulls the slider 403 upward, causing the sphere b405 on the connecting rod b404 to move to the middle position of the hypotenuse b409. Subsequently, it moves along the hypotenuse b409, avoiding the phenomenon of jamming during the movement of the sphere b405. Then, the sphere b405 moves to the other side of the guiding bar 407. Since the tension spring 402 itself does not have the tensile force to pull the sphere b405 to the highest point of the guiding bar 407, the sphere b405 will move back to the middle position of the guiding bar 407 after disengaging from the guiding bar 407. When moving towards the middle of the wire mesh 210 again, the sphere b405 moves along the hypotenuse a408, and the pushing of the remaining material can be realized again. The automatic upward design and the structural design to avoid the re-pushing of the coating help to improve the production efficiency and reduce the need for manual operation.

[0048] Specifically, the maximum height at which the tension spring 402 stretches the sphere b405 in the static state is lower than the highest point of the guiding bar 407, so that the highest point at which the tension spring 402 moves the sphere b405 in the static state does not exceed the highest point of the guiding bar 407, and the sphere b405 can return to the initial position.

[0049] Further, a motor 211 is fixedly installed inside the frame 205. A spur gear a212 is sleeved on the output shaft of the motor 211. A rack 213 meshing with the spur gear a212 is fixedly connected to the brush piece a207 and the coating head 206. The coating head 206 and the brush piece a207 are staggeredly distributed. The rack 213 is slidably connected to the frame 205 through a chute. When the motor 211 is started to drive the spur gear a212 to rotate, the spur gear a212 meshes with the racks 213 on both sides respectively, which can drive the coating head 206 and the brush piece a207 to lift alternately, so as to realize the laying of the coating and the coating of the battery panel.

[0050] According to the embodiment, the coating pushed to both sides can be automatically pushed back to the original position without manual intervention, thus improving the production efficiency.

[0051] Embodiment 4:

[0052] Combined with Figure 1 、 Figure 7 and Figure 8 As shown, on the basis of Embodiment 1, the conveying mechanism 300 includes a transmission disk 302 rotatably installed on the workbench 100. A plurality of conveyor belts 304 are arranged on the transmission disk 302. Limiting grooves 305 for placing battery panels are arranged on both sides of the conveyor belts 304. A transmission member 306 for driving the plurality of conveyor belts 304 to operate is arranged on the workbench 100. The manipulator first places the battery panel on the limiting groove 305 on the conveyor belt 304. Subsequently, the transmission disk 302 rotates to move the conveyor belt 304 with the battery panel below the wire mesh 210. Then, the printing operation is carried out. After the printing is completed, the conveyor belt 304 with the finished product is moved to the conveyor 101. Subsequently, the limiting groove 305 conveys the battery panel to the conveyor 101, realizing automatic blanking.

[0053] Specifically, the transmission member 306 includes a driving shaft 3065 fixedly connected to the driving roller on the conveyor belt 304. A plurality of rotating shafts 3063 are rotatably installed on the transmission disk 302. Bevel gears 3066 engaged for transmission are sleeved on the rotating shaft 3063 and the adjacent driving shaft 3065. An outer ring 3061 is fixedly connected inside the workbench 100. Tooth groups 3062 corresponding to the spur gear b3064 are fixedly connected to the outer wall of the outer ring 3061. When the limiting groove 305 moves, the corresponding rotating shaft 3063 also moves accordingly. The spur gear b3064 meshes with the tooth group 3062 to drive the rotating shaft 3063 to rotate. The rotating shaft 3063 drives the driving shaft 3065 to rotate through the bevel gear 3066, and then the conveyor belt 304 can be driven to operate, realizing blanking. It can reduce the use of sensors, reduce the manufacturing difficulty of the equipment, realize linkage operation, and reduce the error in the operation process.

[0054] Furthermore, a motor 301 for conveying the solar panels is fixedly installed inside the workbench 100. The output end of the motor 301 is fixedly connected to a transmission disc 302. The motor 301 serves as a single power source to achieve the conveyance and discharging of the solar panels, which can reduce the manufacturing cost of the equipment.

[0055] A load-bearing seat 303 for supporting the solar panels is fixedly connected to the workbench 100. The load-bearing seat 303 is located in the middle of the conveyor belt 304, and the inner side surface of the conveyor belt 304 is in contact with the load-bearing seat 303. The setting of the load-bearing seat 303 can support the solar panels and is beneficial to improving the printing quality.

[0056] As can be seen from the above embodiments: First, the manipulator places the solar panel on the limit groove 305 on the conveyor belt 304. Subsequently, the transmission disc 302 rotates to move the conveyor belt 304 with the solar panel below the screen 210. Then, the printing operation is carried out. The motor 211 is started to drive the spur gear a212 to rotate. The spur gear a212 meshes with the racks 213 on both sides respectively, which can drive the paint head 206 and the brush piece a207 to alternately lift and lower. The paint head 206 descends, and the external pipeline 214 introduces the paint into the paint head 206. Subsequently, the paint head 206 sprays the paint on the screen 210. The electric slide rail 202 drives the paint head 206 to translate, so that the paint is evenly laid on the screen 210. Then, the paint head 206 rises, and the brush piece a207 descends to fit with the screen 210. The free end of the electric telescopic rod 204 descends, so that the frame 205 and the screen 210 as a whole descend, making the screen 210 fit with the solar panel. Subsequently, the electric slide rail 202 is started to drive the frame 205 on the transmission block 203 to translate. The brush piece a207 moves with the frame 205 to penetrate the paint on the screen 210 onto the solar panel to achieve printing. Then, the free end of the transmission block 203 rises to make the screen 210 separate from the solar panel. After the printing is completed, the conveyor belt 304 with the finished product is moved to the conveyor 101. Subsequently, the limit groove 305 conveys and pushes the solar panel onto the conveyor 101 to achieve automatic discharging.

[0057] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0058] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery screen printing device, including a workbench (100) as the carrier of the entire device, characterized in that: a conveyor (101) for conveying battery plates is installed on one side of the workbench (100), a printing mechanism (200) for printing battery plates is provided on the workbench (100), and a transfer mechanism (300) for transferring battery plates is also provided on the workbench (100); the transfer mechanism (300) includes a housing (201) fixedly connected to the workbench (100), an electric slide rail (202) is installed inside the housing (201), a transmission block (203) is slidably connected inside the electric slide rail (202), an electric telescopic rod (204) is fixedly installed on the transmission block (203), the output end of the electric telescopic rod (204) is fixedly connected to a frame (205), a paint head (206) for spraying paint is provided at the bottom of the frame (205), a brush piece a (207) for coating the paint is also provided at the bottom of the frame (205), and a screen (210) for transferring the paint is fixedly connected to the frame (205); a pushing assembly (209) for pushing the remaining material is provided on the screen (210); the pushing assembly (209) includes load-bearing plates fixedly connected to both sides of the screen (210), a transmission bar (2097) is slidably connected to the load-bearing plates, a brush piece b (2094) for pushing the edge material is provided on the transmission bar (2097), a load-bearing plate (2096) is fixedly connected to the end of the transmission bar (2097), a spring (2098) is fixedly connected between the load-bearing plate (2096) and the load-bearing plate, a connecting rod a (2093) is fixedly connected to the load-bearing plate (2096), a sphere a (2092) is fixedly connected to the end of the connecting rod a (2093), a push block (2091) for pushing the brush piece b (2094) to move inward is fixedly connected to the outside of the paint head (206), laser thickness gauges (208) for detecting the thickness of the residual paint on the edge are provided on both sides of the paint head (206), a sealing piece (215) for the switch of the paint head (206) is provided on the paint head (206), an electric push rod for driving the movement of the sealing piece (215) is installed on the paint head (206), and a lifting assembly (400) for lifting the brush piece b (2094) is provided on the screen (210); the lifting assembly (400) includes an outer frame (401) fixedly connected to the end of the transmission bar (2097), a slider (403) is slidably connected inside the outer frame (401), a connecting strip (2095) is fixedly connected between the slider (403) and the brush piece b (2094), a tension spring (402) is fixedly connected between the slider (403) and the inner top wall of the outer frame (401), a connecting rod b (404) slidably connected to the outer frame (401) is fixedly connected to the slider (403), a box body (406) is fixedly connected to the load-bearing plate, a sphere b (405) is fixedly connected to the end of the connecting rod b (404), and a guiding strip (407) for changing the position of the brush piece b (2094) is provided inside the box body (406).

2. The battery screen printing device according to claim 1, characterized in that: On both sides of the guiding bar (407), there are respectively a hypotenuse a (408) and a hypotenuse b (409), and the inclined states of the hypotenuse a (408) and the hypotenuse b (409) are inclined downward from top to bottom towards the brush piece b (2094).

3. The battery screen printing device according to claim 2, characterized in that: When the tension spring (402) is in a static state, the maximum height at which it stretches the sphere b (405) is lower than the highest point of the guiding bar (407).

4. The battery screen printing device according to claim 1, characterized in that: A motor (211) is fixedly installed inside the frame body (205). A spur gear a (212) is sleeved on the output shaft of the motor (211). A rack (213) meshing with the spur gear a (212) is fixedly connected to the brush piece a (207) and the coating head (206). The coating head (206) and the brush piece a (207) are staggeredly distributed. The rack (213) is slidably connected to the frame body (205) through a sliding groove.

5. The battery screen printing device according to claim 1, characterized in that: The conveying mechanism (300) includes a transmission disk (302) rotatably installed on the workbench (100). A plurality of conveyor belts (304) are provided on the transmission disk (302). Limiting grooves (305) for placing battery plates are provided on both sides of the conveyor belts (304). A transmission member (306) for driving the plurality of conveyor belts (304) to operate is provided on the workbench (100).

6. The battery screen printing device according to claim 5, characterized in that: The transmission member (306) includes a driving shaft (3065) fixedly connected to the driving roller on the conveyor belt (304). A plurality of rotating shafts (3063) are rotatably installed on the transmission disk (302). Bevel gears (3066) engaged for transmission are sleeved on the rotating shaft (3063) and the adjacent driving shaft (3065). An outer ring (3061) is fixedly installed inside the workbench (100). Tooth groups (3062) corresponding to the spur gear b (3064) are fixedly connected to the outer wall of the outer ring (3061).

7. The battery screen printing device according to claim 5, characterized in that: A motor (301) for conveying the battery plate is fixedly installed inside the workbench (100). The output end of the motor (301) is fixedly connected to the transmission disk (302).

8. The battery screen printing device according to claim 5, characterized in that: A load-bearing seat (303) for supporting the battery plate is fixedly connected to the workbench (100). The load-bearing seat (303) is located in the middle of the conveyor belt (304), and the inner side surface of the conveyor belt (304) is in contact with the load-bearing seat (303).

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