Device for preventing lead paste in paste mixing and storing hopper from losing excessive water and hardening

Abstract

The invention discloses a device for preventing excessive water loss and hardening of lead paste in a paste mixing and storage hopper, which comprises a paste storage hopper arranged below a vacuum paste mixing machine, a fixed seat fixedly arranged on the side part of the paste storage hopper, an air cylinder fixedly arranged on the side part of the fixed seat, a push seat fixedly arranged at the telescopic end of the air cylinder, and a push rod fixedly arranged on the push seat, a laser distance measuring sensor is mounted in the pushing seat; the stirring mechanism is mounted at the bottom of the mounting cover and is used for stirring the lead paste; through linkage design of laser ranging and the PLC control system, regulation and control of the amount of the lead plaster in the plaster storage hopper are achieved, excessive accumulation of the lead plaster in the plaster storage hopper is avoided, the equipment load is greatly reduced, mechanical loss is reduced, the service life of equipment is prolonged, the amount of the lead plaster is controlled, the storage time and storage amount of the lead plaster are reduced, and the production efficiency is improved. The problem of water loss and hardening caused by long-time storage is effectively relieved, the consistency stability of the lead paste is ensured, the plate coating uniformity and the polar plate performance stability are improved, and the production efficiency and the product percent of pass are improved.

Description

Technical Field

[0001] This invention relates to the field of lead-acid battery plate manufacturing technology, specifically to a device for preventing excessive water loss and hardening of lead paste in a paste storage container. Background Technology

[0002] In the field of coated lead-acid battery plate manufacturing, with increasingly stringent environmental standards and continuously improving speed of continuous coating machines, vacuum paste mixing machines are widely used due to their excellent mixing performance and fast paste mixing speed. However, the amount of paste prepared often exceeds the actual consumption of the coated plates. Even with the currently used mesh belt continuous coating machines, the amount of lead paste prepared still exceeds the amount used. Operators often add more prepared lead paste to the storage hopper before half of the amount has been used, resulting in excessive lead paste in the storage hopper. Excessive lead paste in the storage hopper not only increases the load on the equipment and is prone to damage, but also accelerates water loss due to the temperature of the lead paste itself and the heat generated by rotation. The more paste there is and the longer it is stored, the more serious the water loss becomes, causing the apparent density and consistency of the lead paste to increase, and the texture to harden. Ultimately, this affects the coating quality and plate performance. Therefore, we need to propose a device to prevent excessive water loss and hardening of lead paste in the paste storage hopper. Summary of the Invention

[0003] The purpose of this invention is to provide a device for preventing excessive water loss and hardening of lead paste in the paste storage hopper. By regulating the amount of lead paste in the storage hopper, excessive accumulation of lead paste is avoided, significantly reducing equipment load and reducing lead paste storage time and quantity. This effectively alleviates the problem of water loss and hardening caused by long-term storage, ensures stable lead paste consistency, improves coating uniformity and electrode plate performance stability, and increases production efficiency and product qualification rate, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A device for preventing excessive water loss and hardening of lead paste in a paste storage hopper includes: a storage hopper installed below a vacuum paste mixer, with a fixed base fixedly installed on its side; a cylinder fixedly installed on the side of the fixed base; a pusher fixedly installed on the telescopic end of the cylinder; and a laser rangefinder sensor installed inside the pusher; a mounting cover fixedly installed on the top of the storage hopper; and a stirring mechanism installed at the bottom of the mounting cover for stirring the lead paste.

[0006] Preferably, an annular guide rail is fixedly installed at the bottom of the mounting cover, and multiple sets of sliders are slidably installed on the annular guide rail, with the stirring mechanism mounted on the sliders.

[0007] Preferably, the stirring mechanism includes an internal gear ring gear, a drive motor, a drive gear, a transmission gear, a stirring rod, and a driven gear. The internal gear ring gear is fixedly mounted on the slider. There are two sets of the stirring rod and the driven gear. Both sets of the stirring rod are rotatably mounted on the mounting cover. The driven gear is fixedly connected to the stirring rod. The drive motor is fixedly mounted on the top of the mounting cover. The drive gear is fixedly mounted on the output shaft of the drive motor. The transmission gear is movably mounted inside the mounting cover. The internal gear ring gear and one set of driven gears mesh with the drive gear. The internal gear ring gear and the other set of driven gears mesh with the transmission gear.

[0008] Preferably, the drive gear and the transmission gear are arranged symmetrically.

[0009] Preferably, the stirring mechanism further includes scrapers, and the scrapers are provided in two sets. The two sets of scrapers are symmetrically fixedly installed on the bottom of the internal gear ring, and the side of the scraper contacts the inner wall of the paste storage hopper.

[0010] Preferably, the lower ends of both sets of stirring rods are fixedly connected to conical blocks, and the inner bottom of the paste storage hopper is symmetrically fixedly connected to two sets of positioning seats corresponding to the stirring rods. Positioning rings are movably installed in both sets of positioning seats, and conical grooves adapted to the conical blocks are opened in the positioning rings, and the conical blocks are inserted into the conical grooves.

[0011] Preferably, the push base includes a movable base, a clamping block, a connecting frame, and a fixing screw. The connecting frame is fixedly connected to the side of the clamping block and is movably inserted into the movable base. The fixing screw is threadedly installed in the connecting frame, and the threaded end of the fixing screw abuts against the side of the movable base. The laser rangefinder sensor is clamped and fixed by the movable base in cooperation with the clamping block.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] This invention achieves regulation of the amount of lead paste in the storage hopper through the linkage design of laser ranging and PLC control system, avoiding excessive accumulation of lead paste in the storage hopper, significantly reducing equipment load, reducing mechanical wear, and extending equipment service life. Moreover, controlling the amount of lead paste reduces the storage time and quantity of lead paste, effectively alleviating the problem of water loss and hardening caused by long-term storage, ensuring stable lead paste consistency, improving coating uniformity and electrode performance stability, and improving production efficiency and product qualification rate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention;

[0015] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the stirring mechanism of the present invention;

[0017] Figure 4 This is a schematic diagram of the structure of the push seat of the present invention.

[0018] In the diagram: 1. Storage hopper; 2. Fixed base; 3. Cylinder; 4. Pushing base; 401. Moving base; 402. Clamping block; 403. Connecting frame; 404. Fixing screw; 5. Laser rangefinder sensor; 6. Mounting cover; 7. Circular guide rail; 8. Slider; 9. Stirring mechanism; 901. Internal gear ring gear; 902. Drive motor; 903. Drive gear; 904. Transmission gear; 905. Stirring rod; 906. Driven gear; 907. Scraper; 10. Positioning base; 11. Positioning ring; 12. Conical block. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-4 The present invention provides a technical solution:

[0021] A device for preventing excessive water loss and hardening of lead paste in a paste storage hopper includes: a paste storage hopper 1 installed below a vacuum paste mixer, a fixed base 2 fixedly installed on its side, a cylinder 3 fixedly installed on the side of the fixed base 2, a pusher 4 fixedly installed on the telescopic end of the cylinder 3, and a laser rangefinder 5 installed inside the pusher 4; a mounting cover 6 fixedly installed on the top of the paste storage hopper 1; and a stirring mechanism 9 installed at the bottom of the mounting cover 6 for stirring the lead paste.

[0022] It should be noted that the paste storage hopper 1 is installed above the coating machine. The cylinder 3, laser range sensor 5, drive motor 902, and vacuum paste mixer are all electrically connected to the PLC control panel of the coating machine. The remaining height of lead paste in the paste storage hopper 1 is controlled by the PLC control panel of the coating machine, which is the laser range measurement distance of the laser range sensor 5. When the lead paste reaches the set distance during use, the vacuum paste mixer will automatically stir for 30s~60s and then open the paste outlet to release the lead paste into the paste storage hopper 1. This is to achieve the control of the amount of lead paste in the paste storage hopper 1.

[0023] After the lead paste is poured into the storage hopper 1, the drive motor 902 is started. When the drive motor 902 rotates, the driven gear 906 rotates, which in turn drives the stirring rod 905 to rotate. The stirring rod 905 stirs and mixes the lead paste remaining in the storage hopper 1 as well as the lead paste poured into the storage hopper 1 by the vacuum and paste machine, so that it can be uniform.

[0024] In an optional embodiment: such as Figures 2 to 3 As shown, an annular guide rail 7 is fixedly installed at the bottom of the mounting cover 6, and multiple sets of sliders 8 are slidably installed on the annular guide rail 7. The stirring mechanism 9 is installed on the sliders 8.

[0025] The stirring mechanism 9 includes an internal gear ring gear 901, a drive motor 902, a drive gear 903, a transmission gear 904, a stirring rod 905, and a driven gear 906. The internal gear ring gear 901 is fixedly mounted on the slider 8. There are two sets of stirring rods 905 and driven gears 906. Both sets of stirring rods 905 are rotatably mounted on the mounting cover 6. The driven gears 906 are fixedly connected to the stirring rods 905. The drive motor 902 is fixedly mounted on the top of the mounting cover 6. The drive gear 903 is fixedly mounted on the output shaft of the drive motor 902. The transmission gear 904 is movably mounted inside the mounting cover 6. The internal gear ring gear 901 and one set of driven gears 906 are both meshed with the drive gear 903. The internal gear ring gear 901 and the other set of driven gears 906 are both meshed with the transmission gear 904.

[0026] The drive gear 903 and the transmission gear 904 are arranged symmetrically.

[0027] It should be noted that the annular guide rail 7 and the slider 8 cooperate to install and limit the internal gear ring gear 901, so that when the drive motor 902 drives the internal gear ring gear 901 to rotate through the drive gear 903, the internal gear ring gear 901 can rotate stably within the mounting cover 6.

[0028] The internal gear ring gear 901, drive motor 902, drive gear 903, transmission gear 904, stirring rod 905 and driven gear 906 work together to stir and mix the residual lead paste in the storage hopper 1 and the lead paste discharged into the storage hopper 1 by the vacuum and paste machine, so as to ensure that the lead paste has a uniform consistency.

[0029] In an optional embodiment: such as Figures 2 to 3 As shown, the stirring mechanism 9 also includes a scraper 907. There are two sets of scrapers 907. The two sets of scrapers 907 are symmetrically fixedly installed on the bottom of the internal gear ring gear 901. The side of the scraper 907 is in contact with the inner wall of the paste storage hopper 1.

[0030] It should be noted that the scraper 907 is designed to scrape off the lead paste from the inner wall of the paste storage hopper 1 and to turn the lead paste close to the inner wall of the paste storage hopper 1, so as to facilitate uniform mixing of the lead paste.

[0031] In an optional embodiment: such as Figure 3 As shown, the lower ends of the two sets of stirring rods 905 are fixedly connected to conical blocks 12. The bottom of the paste storage hopper 1 is symmetrically fixedly connected to two sets of positioning seats 10 corresponding to the stirring rods 905. Positioning rings 11 are movably installed in the two sets of positioning seats 10. The positioning rings 11 have conical grooves that are adapted to the conical blocks 12. The conical blocks 12 are inserted into the conical grooves.

[0032] It should be noted that the positioning seat 10, positioning ring 11 and conical block 12 cooperate to position the stirring rod 905, so that the stirring rod 905 can rotate stably.

[0033] Specifically, when the stirring rod 905 rotates, the stirring rod 905 drives the conical block 12 to rotate. The conical block 12 can drive the positioning ring 11 to rotate within the positioning seat 10 through the conical groove, which can ensure that the stirring rod 905 can stably stir the lead paste.

[0034] In an optional embodiment: such as Figure 4 As shown, the push base 4 includes a movable base 401, a clamping block 402, a connecting frame 403, and a fixing screw 404. The connecting frame 403 is fixedly connected to the side of the clamping block 402. The connecting frame 403 is movably inserted into the movable base 401. The fixing screw 404 is threadedly installed in the connecting frame 403. The threaded end of the fixing screw 404 abuts against the side of the movable base 401. The laser rangefinder sensor 5 is clamped and fixed by the movable base 401 in cooperation with the clamping block 402.

[0035] It should be noted that the combination of the movable base 401, the clamping block 402, the connecting bracket 403 and the fixing screw 404 facilitates the installation and disassembly of the laser rangefinder sensor 5, thereby improving the convenience of installing and disassembling the laser rangefinder sensor 5.

[0036] Specifically, when installing the laser rangefinder 5, the laser rangefinder 5 is placed between the movable base 401 and the clamping block 402. By turning the fixing screw 404, the fixing screw 404 rotates within the connecting frame 403 and moves within the connecting frame 403. The fixing screw 404 abuts against the side of the movable base 401, thereby clamping and fixing the laser rangefinder 5 between the movable base 401 and the clamping block 402.

[0037] When disassembling the laser rangefinder sensor 5, loosen the fixing screw 404 so that the fixing screw 404 moves as it rotates within the connecting bracket 403, thereby eliminating the force of the fixing screw 404 pressing against the moving seat 401. This allows the clamping block 402 to slide away from the moving seat 401, at which point the laser rangefinder sensor 5 can be disassembled.

[0038] The usage process of this invention is as follows: Start cylinder 3, extend the telescopic rod of cylinder 3, and move the laser ranging sensor 5 to the center position of the upper horizontal plane of the paste storage hopper 1. The PLC control panel of the coating machine has settings for laser ranging distance, linkage stirring time with the paste machine, and stirring time of lead paste in the paste storage hopper 1. The laser ranging distance is set from 500mm to 1500mm, the linkage stirring time with the paste machine is set from 0 to 120s, and the stirring time of lead paste in the paste storage hopper 1 is set to 120s. The lead paste in the paste storage hopper 1 is fed to the coating machine for processing. The laser ranging sensor 5 measures the remaining height of lead paste in the paste storage hopper 1, i.e., the laser ranging distance. When the lead paste in the paste storage hopper 1 reaches the set distance during use, start cylinder 3, and retract the telescopic rod of cylinder 3, causing the laser ranging sensor 5 to return to the outside of the paste storage hopper 1.

[0039] When the lead paste is used, the PLC control panel of the coating machine automatically starts the paste mixing machine when the set distance is reached. After mixing for 30-60 seconds, the paste outlet door is opened to release the lead paste into the paste storage hopper 1. This controls the amount of lead paste in the storage hopper. After all the lead paste is released, the paste outlet door of the paste mixing machine automatically closes. The laser distance sensor 5 extends into position with the telescopic rod of the cylinder 3 to measure the distance, avoiding excessive accumulation of lead paste in the storage hopper, greatly reducing the equipment load, and reducing the storage time and amount of lead paste. This effectively alleviates the problem of water loss and hardening caused by long-term storage, ensures stable lead paste consistency, improves coating uniformity and electrode plate performance stability, and improves production efficiency and product qualification rate.

[0040] After the lead paste is poured into the storage hopper 1, the drive motor 902 is started. When the drive motor 902 rotates, the driven gear 906 rotates, which drives the stirring rod 905 to rotate. The stirring rod 905 stirs and mixes the lead paste remaining in the storage hopper 1 as well as the lead paste poured into the storage hopper 1 by the vacuum and paste machine, so that it can be uniform.

[0041] Furthermore, during the mixing of lead paste, the drive gear 903 drives the internal gear ring gear 901 to rotate. The rotation of the internal gear ring gear 901 drives the scraper 907 to rotate, so that the scraper 907 can scrape off the lead paste on the inner wall of the storage hopper 1 and turn the lead paste close to the inner wall of the storage hopper 1, so as to facilitate the uniform mixing of lead paste.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preventing excessive water loss and hardening of lead paste in a paste storage container, characterized in that, include: The storage hopper (1) installed below the vacuum and ointment machine has a fixed seat (2) fixedly installed on its side. A cylinder (3) is fixedly installed on the side of the fixed seat (2). A push seat (4) is fixedly installed on the telescopic end of the cylinder (3). A laser rangefinder (5) is installed inside the push seat (4). The cover (6) is fixedly installed on the top of the paste storage hopper (1); A stirring mechanism (9) is installed at the bottom of the mounting cover (6) for stirring lead paste.

2. The device for preventing excessive water loss and hardening of lead paste in a paste storage container according to claim 1, characterized in that: The bottom of the mounting cover (6) is fixedly mounted with an annular guide rail (7), and multiple sets of sliders (8) are slidably mounted on the annular guide rail (7). The stirring mechanism (9) is mounted on the sliders (8).

3. The device for preventing excessive water loss and hardening of lead paste in a paste storage container according to claim 2, characterized in that: The stirring mechanism (9) includes an internal gear ring gear (901), a drive motor (902), a drive gear (903), a transmission gear (904), a stirring rod (905), and a driven gear (906). The internal gear ring gear (901) is fixedly mounted on the slider (8). The stirring rod (905) and the driven gear (906) are each provided in two sets. Both sets of the stirring rod (905) are rotatably mounted on the mounting cover (6). The driven gear (906) is fixedly connected to the stirring rod. On (905), the drive motor (902) is fixedly mounted on the top of the mounting cover (6), the drive gear (903) is fixedly mounted on the output shaft of the drive motor (902), the transmission gear (904) is movably mounted inside the mounting cover (6), the internal gear ring gear (901) and a set of driven gears (906) are both meshed with the drive gear (903), and the internal gear ring gear (901) and another set of driven gears (906) are both meshed with the transmission gear (904).

4. The device for preventing excessive water loss and hardening of lead paste in a paste storage container according to claim 3, characterized in that: The drive gear (903) and the transmission gear (904) are arranged symmetrically.

5. The device for preventing excessive water loss and hardening of lead paste in a paste storage container according to claim 2, characterized in that: The stirring mechanism (9) also includes a scraper (907), which is provided in two sets. The two sets of scrapers (907) are symmetrically fixedly installed on the bottom of the internal gear ring (901). The side of the scraper (907) is in contact with the inner wall of the paste storage hopper (1).

6. The device for preventing excessive water loss and hardening of lead paste in a paste storage container according to claim 3, characterized in that: The lower ends of both sets of stirring rods (905) are fixedly connected to conical blocks (12). The bottom of the paste storage hopper (1) is symmetrically fixedly connected to two sets of positioning seats (10) corresponding to the stirring rods (905). Positioning rings (11) are movably installed in both sets of positioning seats (10). The positioning rings (11) have conical grooves that are adapted to the conical blocks (12). The conical blocks (12) are inserted into the conical grooves.

7. The device for preventing excessive water loss and hardening of lead paste in a paste storage container according to claim 1, characterized in that: The push base (4) includes a movable base (401), a clamping block (402), a connecting frame (403), and a fixing screw (404). The connecting frame (403) is fixedly connected to the side of the clamping block (402). The connecting frame (403) is movably inserted into the movable base (401). The fixing screw (404) is threadedly installed in the connecting frame (403). The threaded end of the fixing screw (404) abuts against the side of the movable base (401). The laser rangefinder (5) is clamped and fixed by the movable base (401) in cooperation with the clamping block (402).

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