Battery screen printing device

Abstract

The utility model relates to the technical field of battery production, in particular to a battery screen printing device. Comprising a bottom plate, baffles are fixed to the front side and the rear side of the bottom plate, a conveying belt is installed between the two baffles, printing devices are fixedly connected to the upper ends of the two baffles, and clamping devices are arranged on the baffles below the printing devices. When the device carries out silk-screen printing on a battery, one scraping plate scrapes slurry on the silk-screen printing plate to move on the silk-screen printing plate, so that silk-screen printing of the battery is achieved, after silk-screen printing is carried out on the battery, the rotating plate can turn over along with continuous movement of the sliding frame and under the guiding effect of the guiding rod, and the rotating plate can rotate. And in the reduction process of the sliding frame, the scraping plate making contact with the screen printing plate can continue to scrape slurry so that continuous screen printing of the battery can be achieved, the number of executing mechanisms needing to consume energy in the working process of the device is small, and energy consumption can be reduced in the working process.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a battery screen printing device. Background Art

[0002] After the battery is produced, the trademark, factory name, specifications and model must be printed on the valve-regulated battery shell before packaging.

[0003] The Chinese patent publication number CN108724917A discloses an automatic battery flip printing device, comprising: a frame, in which a battery flip feeding mechanism and a battery screen printing mechanism are sequentially arranged along the forward conveying direction of the battery. The battery flip feeding mechanism can automatically flip a vertically placed battery into a horizontal position and convey it to the battery screen printing mechanism; the battery screen printing mechanism is structured as follows: a conveyor belt arranged in the frame and capable of receiving and conveying the battery output by the battery flip feeding mechanism; a printing screen is laid flat on the frame above the conveyor belt, and the height of the printing screen is just enough to allow the flipped horizontal battery to pass through, surrounding the printing screen. The screen is provided with a circle of side enclosures, which together with the printing screen form an ink tank for containing printing ink. A slide rail arranged in a forward and backward direction is installed in the frame above the ink tank. A movable frame is slidingly arranged on the slide rail. The movable frame moves forward and backward along the slide rail under the drive of a translation cylinder installed on the frame. A first longitudinal cylinder and a second longitudinal cylinder are arranged in sequence from front to back in the movable frame. The piston rod of the first longitudinal cylinder faces downward and is equipped with a scraper. The scraper can move downward to the printing screen or upward away from the printing screen under the drive of the first longitudinal cylinder. The piston rod of the second longitudinal cylinder faces downward and is equipped with a scraper. The scraper can move downward to the printing screen or upward away from the printing screen under the drive of the second longitudinal cylinder. In this printing device, there is no limit device on the frame. During the movement of the battery on the conveyor belt, the battery position is very easy to be skewed. The skewed battery position will cause the printed pattern to be skewed.

[0004] To solve the above technical problems, a patent document with publication number CN216400889U discloses a valve-regulated battery screen printing device. During printing, the valve-regulated battery is first placed on a conveyor belt, which conveys the valve-regulated battery to the bottom of the screen printing plate. At this time, the first cylinder drives the splint to clamp the valve-regulated battery, and then the second cylinder drives the scraper to move downward until it contacts the screen printing plate. The third cylinder drives the mounting seat to move the scraper in a translational motion to complete printing. After printing is completed, the second cylinder drives the scraper to rise, the third cylinder drives the mounting seat to reset, the first cylinder drives the splint to reset, and the conveyor belt outputs the printed valve-regulated battery. In order to be able to continuously print batteries, the printing device needs to add slurry to the printing screen after the third cylinder drives the mounting seat on the printing screen to reset. In the process of continuous screen printing of batteries, slurry needs to be frequently added to the screen printing plate. If excessive slurry is added to the screen printing plate, after the third cylinder drives the mounting base to reset, it is necessary to push the slurry on the screen printing plate to the side of the scraper to facilitate the scraper to push the slurry on the screen printing plate again. Therefore, the printing device requires more actuators to work and consumes more energy. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a battery screen printing device which can reduce energy consumption and does not require frequent addition of slurry to the screen printing plate.

[0006] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0007] A battery screen printing device includes a base plate, baffles are fixed on the front and back sides of the base plate, a conveyor belt is installed between the two baffles, a printing device is fixedly connected to the upper ends of the two baffles, and a clamping device is provided on the baffle below the printing device; the printing device includes an upper frame fixedly connected to the upper ends of the baffles, a screen printing plate is fixed to the lower end of the upper frame, the upper end of the battery can contact the lower end of the screen printing plate when the conveyor belt drives the battery to move, an inverted U-shaped slide is slidably provided on the upper end of the upper frame, the sliding direction of the slide is parallel to the conveying direction of the conveyor belt, and a driving unit that can drive the slide to move is provided on the upper frame A rotating rod is provided for rotation in the slide, one end of the rotating rod is located outside the slide, and a rotating plate is fixed on the rotating rod, and the geometric center of the rotating plate and the rotating rod coincide with each other. Scrapers are fixed at both ends of the rotating plate in the transmission direction of the conveyor belt, and a turntable is concentrically fixed to one end of the rotating rod outside the slide, and an eccentric rod is eccentrically fixed on the upper side of the turntable. A baffle rod is fixed on the slide directly below the turntable, and the baffle rod is connected to the eccentric rod by a tension spring. The end of the rotating plate on one side of the eccentric rod is tilted downward, and the scraper on one side of the eccentric rod contacts the screen printing plate. Guide rods are fixed at both ends of the upper frame in the transmission direction of the conveyor belt, and the upper end of the guide rod is tilted toward the middle of the upper frame.

[0008] Specifically, a support plate is provided on the inner side of the conveyor belt, the support plate is fixedly connected to the baffle, and the upper end of the support plate is in sliding contact with the lower end of the upper part of the conveyor belt.

[0009] Specifically, buffer plates are fixed in both ends of the upper frame in the conveying direction of the conveyor belt, and the lower ends of the buffer plates are in contact with the upper ends of the screen printing plate.

[0010] Specifically, the opposite ends of the two buffer plates are both processed with guiding inclined surfaces.

[0011] Specifically, the lower end of the upper frame and the upper end of the baffle are fixedly connected via a support plate.

[0012] Specifically, a slider is fixed to the lower end of the slide, and a slide groove corresponding to the slider is opened at the upper end of the upper frame. The slider is slidably engaged in the slide groove, and the length direction of the slide groove is parallel to the conveying direction of the conveyor belt.

[0013] Specifically, the drive unit includes a screw rotatably arranged in one of the slide grooves, a motor corresponding to the screw is fixed on the upper frame, the output shaft of the motor is concentrically fixedly connected to the screw, and the screw is threadedly connected to a slider on one side of it.

[0014] Specifically, the clamping device includes a slot hole opened on the baffle, a clamping plate is slidably arranged in the slot hole, a cylinder is fixed on the baffle, the telescopic end of the cylinder is fixedly connected to the baffle, and the axial direction of the cylinder is perpendicular to the conveying direction of the conveyor belt.

[0015] Specifically, a plurality of supporting legs are fixed to the lower end of the base plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. When the device screen-prints the battery, one of the scrapers scrapes the slurry on the screen printing plate and moves on the screen printing plate, thereby realizing screen printing of the battery. After screen printing the battery, as the slide continues to move, the rotating plate can be flipped under the guidance of the guide rod, thereby making the other scraper contact with the screen printing plate. During the restoration process of the slide, the scraper in contact with the screen printing plate can continue to scrape the slurry, thereby realizing continuous screen printing of the battery. During the operation of the device, fewer actuators that need to consume energy can reduce energy consumption during the operation process.

[0018] 2. By providing a buffer plate, when the rotating plate drives the scraper to turn under the tension of the tension spring, the downward rotating scraper will first contact the buffer plate, which can prevent the scraper from hitting the screen printing plate and causing damage to the screen printing plate. By providing a guiding slope on the buffer plate, the scraper can slowly contact the screen printing plate when leaving the buffer plate, which can further effectively protect the screen printing plate.

[0019] 3. When screen printing the battery, setting a support plate can prevent the battery from moving downward and ensure the quality of screen printing.

[0020] 4. When screen printing the battery, the splint can clamp and position the battery to ensure the accuracy of the screen printing position. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A cross-sectional view of the device.

[0022] Figure 2 for Figure 1 Magnified view of area A in center.

[0023] Figure 3 Schematic diagram of the screw and slider.

[0024] Figure 4 It is a schematic diagram of the rear structure of the printing device.

[0025] The names of the parts in the accompanying drawings are: 1 base plate, 2 support legs, 3 baffle, 4 conveyor belt, 5 support plate, 6 splint, 7 battery, 8 upper frame, 9 slide, 10 rotating rod, 11 rotating plate, 12 scraper, 13 guide rod, 14 buffer plate, 15 support plate, 16 motor, 17 lead screw, 18 slider, 19 slide, 20 screen printing plate, 21 turntable, 22 baffle, 23 tension spring, 24 eccentric rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Example 1: Reference Figures 1-4 As shown, a battery 7 screen printing device includes a base plate 1 with multiple legs 2 fixed to the lower end of the base plate 1. Baffles 3 are fixed to the front and rear sides of the base plate 1, a conveyor belt 4 is installed between the two baffles 3, and a printing device is fixedly connected to the upper ends of the two baffles 3.

[0028] The printing device includes an upper frame 8 fixedly connected to the upper end of the baffle 3. Specifically, the lower end of the upper frame 8 is fixedly connected to the upper end of the baffle 3 via a support plate 15.

[0029] A screen printing plate 20 is fixed to the lower end of the upper frame 8 , and the upper end of the battery 7 can contact the lower end of the screen printing plate 20 when the conveyor belt 4 drives the battery 7 to move.

[0030] An inverted U-shaped slide 9 is slidably mounted on the upper end of the upper frame 8. The sliding direction of the slide 9 is parallel to the conveying direction of the conveyor belt 4. Specifically, a slider 18 is fixed to the lower end of the slide 9. A chute 19 corresponding to the slider 18 is formed at the upper end of the upper frame 8. The slider 18 is slidably engaged in the chute 19. The length direction of the chute 19 is parallel to the conveying direction of the conveyor belt 4.

[0031] The upper frame 8 is provided with a drive unit capable of driving the movement of the slide 9. Specifically, the drive unit includes a lead screw 17 that rotates within one of the slide slots 19. A motor 16 corresponding to the lead screw 17 is fixed to the upper frame 8. The output shaft of the motor 16 is concentrically fixedly connected to the lead screw, and the lead screw 17 is threadedly connected to a slider 18 on one side thereof.

[0032] A rotating rod 10 is rotatably provided in the slide 9 , one end of the rotating rod 10 is located outside the slide 9 , a rotating plate 11 is fixed on the rotating rod 10 , and the geometric center of the rotating plate 11 coincides with that of the rotating rod 10 .

[0033] Scrapers 12 are fixed to both ends of the rotating plate 11 in the conveying direction of the conveyor belt 4.

[0034] A turntable 21 is concentrically fixed to one end of the rotating rod 10 on the outside of the slide 9, and an eccentric rod 24 is eccentrically fixed to the upper side of the turntable 21. A blocking rod 22 is fixed to the slide 9 directly below the turntable 21. The blocking rod 22 is connected to the eccentric rod 24 through a tension spring 23. The end of the rotating plate 11 on one side of the eccentric rod 24 is tilted downward, and the scraper 12 on one side of the eccentric rod 24 is in contact with the screen printing plate 20.

[0035] Guide rods 13 are fixed to both ends of the upper frame 8 in the conveying direction of the conveyor belt 4 , and the upper ends of the guide rods 13 are inclined toward the middle of the upper frame 8 .

[0036] like Figure 4 And refer to Figure 1 As shown, the battery 7 moves from left to right on the conveyor belt 4. When the battery 7 reaches the printing position below the screen printing plate 20, the conveyor belt 4 stops. At this point, the eccentric rod 24 is located to the left of the vertical axis of the turntable 21. Under the elastic force of the tension spring 23, the left scraper 12 contacts the screen printing plate 20. Then, the motor 16 is activated, driving the lead screw 17 to rotate forward, causing the carriage 9, rotating rod 10, rotating plate 11, and scraper 12 to move to the right. The left scraper 12 can scrape the slurry on the screen printing plate 20, thereby screen printing the battery 7.

[0037] After the right scraper 12 contacts the right guide rod 13, guided by the right guide rod 13, the carriage 9, rotating rod 10, rotating plate 11, and scraper 12 continue to move to the right. The rotating rod 10, rotating plate 11, rotating disc 21, and eccentric rod 24 rotate, stretching the tension spring 23. When the eccentric rod 24 rotates to the right of the vertical axis of the rotating disc 21, the rotating rod 10, rotating plate 11, rotating disc 21, and eccentric rod 24 continue to rotate under the tension of the tension spring 23 until the right scraper 12 contacts the screen printing plate 20. At this point, the slurry on the screen printing plate 20 is located to the left of the right scraper 12. The conveyor belt 4 then starts, and the screen-printed battery 7 moves to the right.

[0038] When the next battery 7 moves to the bottom of the screen printing plate 20, the motor 16 drives the screw 17 to reverse, and the slide 9, rotating rod 10, rotating plate 11 and scraper 12 move to the left. The scraper 12 on the right can scrape the slurry on the screen printing plate 20, and then screen print the battery 7.

[0039] After the left scraper 12 contacts the left guide rod 13, guided by the left guide rod 13, the carriage 9, rotating rod 10, rotating plate 11, and scraper 12 continue to move leftward. The rotating rod 10, rotating plate 11, rotating disc 21, and eccentric rod 24 rotate, stretching the tension spring 23. When the eccentric rod 24 rotates to the left of the vertical axis of the rotating disc 21, the rotating rod 10, rotating plate 11, rotating disc 21, and eccentric rod 24 continue to rotate under the tension of the tension spring 23 until the left scraper 12 contacts the screen printing plate 20. At this point, the slurry on the screen printing plate 20 is located to the right of the left scraper 12. The conveyor belt 4 then starts, and the screen-printed battery 7 moves rightward. The left-right reciprocating motion of the carriage 9, rotating rod 10, rotating plate 11, and scraper 12 enables continuous screen printing of the battery 7. When the scraper 12 scrapes the slurry on the screen printing plate 20 , the front and rear ends of the scraper 12 are in sliding contact with the front and rear inner walls of the upper frame 8 .

[0040] Example 2: Based on Example 1, refer to Figure 1 、 Figure 2 and Figure 4 As shown, buffer plates 14 are fixed in both ends of the upper frame 8 in the conveying direction of the conveyor belt 4 , and the lower end of the buffer plate 14 contacts the upper end of the screen printing plate 20 .

[0041] By providing the buffer plate 14, when the rotating plate 11 drives the scraper 12 to flip downward under the tension of the tension spring 23, the scraper 12 contacts the buffer plate 14 in advance, which can prevent the scraper 12 from hitting the screen printing plate 20 and causing damage to the screen printing plate 20.

[0042] The opposite ends of the two buffer plates 14 are both processed with guiding inclined surfaces.

[0043] By providing a guiding slope on the buffer plate 14 , the scraper 12 can slowly come into contact with the screen printing plate 20 when leaving the buffer plate 14 , thereby further effectively protecting the screen printing plate 20 .

[0044] Example 3: Based on Example 1, refer to Figure 1 and Figure 2 As shown, a support plate 5 is provided on the inner side of the conveyor belt 4 , the support plate 5 is fixedly connected to the baffle 3 , and the upper end of the support plate 5 is in sliding contact with the lower end of the upper part of the conveyor belt 4 .

[0045] When screen printing is performed on the battery 7 , by providing the support plate 5 and the scraper 12 to squeeze the screen printing plate 20 to perform screen printing on the battery 7 , downward displacement of the battery 7 can be avoided, thereby ensuring the quality of screen printing.

[0046] Example 4: Based on Example 1, refer to Figure 1 and Figure 2 As shown, a clamping device is provided on the baffle 3 below the printing device. Specifically, the clamping device includes a slot provided on the baffle 3, in which a clamping plate 6 is slidably mounted. A cylinder is fixed to the baffle 3, with its telescopic end fixedly connected to the baffle 3, and the axial direction of the cylinder is perpendicular to the conveying direction of the conveyor belt 4.

[0047] When screen printing is performed on the battery 7, the clamping plate 6 can clamp and position the battery 7 after the cylinder is started, thereby ensuring the accuracy of the screen printing position.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A battery screen printing device, comprising a base plate (1), baffles (3) fixed on both the front and rear sides of the base plate (1), a conveyor belt (4) installed between the two baffles (3), characterized in that: The upper ends of the two baffles (3) are fixedly connected with a printing device, and a clamping device is provided on the baffle (3) below the printing device; the printing device comprises an upper frame (8) fixedly connected with the upper end of the baffle (3), a screen printing plate (20) is fixed on the lower end of the upper frame (8), and the upper end of the battery (7) can contact the lower end of the screen printing plate (20) when the conveyor belt (4) drives the battery (7) to move. An inverted U-shaped slide (9) is slidably provided on the upper end of the upper frame (8), and the sliding direction of the slide (9) is parallel to the conveying direction of the conveyor belt (4). A driving unit capable of driving the slide (9) to move is provided on the upper frame (8), and a rotating rod (10) is rotatably provided in the slide (9), one end of the rotating rod (10) is located outside the slide (9), and a rotating plate (11) is fixed on the rotating rod (10). (11) coincides with the geometric center of the rotating rod (10), a scraper (12) is fixed at both ends of the rotating plate (11) in the transmission direction of the conveyor belt (4), a turntable (21) is concentrically fixed to one end of the rotating rod (10) outside the slide (9), an eccentric rod (24) is eccentrically fixed on the upper side of the turntable (21), a blocking rod (22) is fixed on the slide (9) directly below the turntable (21), the blocking rod (22) and the eccentric rod (24) are connected by a tension spring (23), the end of the rotating plate (11) on one side of the eccentric rod (24) is tilted downward, and the scraper (12) on one side of the eccentric rod (24) contacts the screen printing plate (20), and a guide rod (13) is fixed at both ends of the upper frame (8) in the transmission direction of the conveyor belt (4), and the upper end of the guide rod (13) is tilted toward the middle direction of the upper frame (8).

2. A battery (7) screen printing device according to claim 1, characterized in that: A support plate (5) is provided inside the conveyor belt (4), the support plate (5) is fixedly connected to the baffle (3), and the upper end of the support plate (5) is in sliding contact with the lower end of the upper part of the conveyor belt (4).

3. A battery (7) screen printing device according to claim 1, characterized in that: Buffer plates (14) are fixed in both ends of the upper frame (8) in the conveying direction of the conveyor belt (4), and the lower end of the buffer plate (14) contacts the upper end of the screen printing plate (20).

4. A battery (7) screen printing device according to claim 3, characterized in that: The opposite ends of the two buffer plates (14) are both processed with guiding inclined surfaces.

5. A battery (7) screen printing device according to claim 1, characterized in that: The lower end of the upper frame (8) and the upper end of the baffle (3) are fixedly connected via a support plate (15).

6. A battery (7) screen printing device according to claim 1, characterized in that: A slider (18) is fixed at the lower end of the slide (9), and a slide groove (19) corresponding to the slider (18) is opened at the upper end of the upper frame (8). The slider (18) is slidably engaged in the slide groove (19), and the length direction of the slide groove (19) is parallel to the conveying direction of the conveyor belt (4).

7. A battery (7) screen printing device according to claim 6, characterized in that: The driving unit includes a lead screw (17) rotatably arranged in one of the slide grooves (19); a motor (16) corresponding to the lead screw (17) is fixed on the upper frame (8); an output shaft of the motor (16) is fixedly connected concentrically with the lead screw; and the lead screw (17) is threadedly connected to a slider (18) on one side thereof.

8. A battery (7) screen printing device according to claim 1, characterized in that: The clamping device comprises a slotted hole formed on the baffle (3), a clamping plate (6) being slidably arranged in the slotted hole, a cylinder being fixed on the baffle (3), a telescopic end of the cylinder being fixedly connected to the baffle (3), and an axial direction of the cylinder being perpendicular to the conveying direction of the conveyor belt (4).

9. A battery (7) screen printing device according to claim 1, characterized in that: A plurality of supporting legs (2) are fixed to the lower end of the base plate (1).

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