Lead-acid battery paste mixing device

Abstract

The present invention discloses a lead-acid battery paste mixing device, including a paste mixing machine powder bin, an auxiliary material discharge hopper, an auxiliary material placement position, a manipulator, an auxiliary material feeding chamber, and a baffle disposed in the auxiliary material feeding chamber. The lead-acid battery paste mixing device of the present invention automatically lifts an auxiliary material barrel filled with auxiliary materials and transfers it to the auxiliary material feeding chamber by a manipulator, and when the auxiliary material barrel moves horizontally, the baffle bar blocks the lower side of the column, so that when the base of the manipulator continues to move horizontally, the upper part of the auxiliary material barrel gradually tilts until it overturns, thereby pouring the auxiliary material into the auxiliary material discharge hopper and finally into the paste mixing machine powder bin. The auxiliary materials are automatically loaded, which improves the automation level of the equipment, and during the loading process, the auxiliary materials are dumped in the auxiliary material feeding chamber, so that dust is effectively controlled, reducing the pollution of the loading process to the working environment.

Description

Technical Field

[0001] The invention relates to the technical field of lead-acid battery production equipment, in particular to a lead-acid battery paste mixing device. Background Art

[0002] Lead-acid batteries are reversible DC power sources that can convert chemical energy into electrical energy and electrical energy into chemical energy. Lead-acid batteries are mainly composed of electrolytes, battery cells and pole groups. The electrolyte of lead-acid batteries is sulfuric acid solution, and the pole group is mainly composed of positive plates, negative plates and separators. The separators mainly store electrolytes and serve as gas channels for oxygen recombination, preventing active substances from falling off and short circuits between the positive and negative electrodes.

[0003] The preparation of lead paste is a critical process in the production of lead-acid batteries. It is a paste made by mixing (stirring) lead powder, pure water, dilute sulfuric acid solution, and various additives. The important purpose of the paste preparation process is to mix various materials evenly and have a suitable phase composition to ensure that the battery has high capacity and long life.

[0004] In order to improve and enhance the performance of batteries, additives are often added to the lead paste formula. Additives are generally divided into conductive additives, non-conductive additives, chemically active additives, etc. Usually, the amount of additives is relatively small, and some are only a few thousandths of the total amount of lead powder. In order to ensure the consistency and stability of the battery lead paste characteristics, various additives need to be evenly dispersed in the lead powder base material, so the uniform dispersion of the lead powder base material and additives in the paste making process is very important.

[0005] Lead paste is generally prepared using a paste mixing machine. For example, a Chinese utility model patent with authorization announcement number CN203944334U discloses a paste mixing machine provided with an auxiliary material adding device, which includes a paste mixing machine body, the paste mixing machine body is provided with a lead powder feeding pipe, a sulfuric acid feeding pipe and a pure water feeding pipe, the paste mixing machine body is provided with an auxiliary material hopper, the upper end of the auxiliary material hopper is provided with a hopper cover, and the lower end is connected to the paste mixing machine body; the auxiliary material hopper is provided with a stirrer, the stirring paddle of the stirrer is located inside the auxiliary material hopper, and the lower end of the auxiliary material hopper is provided with an opening and closing mechanism with controllable flow.

[0006] At present, the basic method of mixing paste is: first add a certain amount of lead powder into the barrel of the paste machine, then add all kinds of additive materials that are not premixed into the barrel of the paste machine at one time, turn on the stirring device of the barrel of the paste machine for 5 to 10 minutes of dry mixing, and finally add water and dilute sulfuric acid for stirring and mixing, and then make paste smears. In the process tracking of actual operation, it is found that due to the agglomeration of lead powder and some additives themselves, it is difficult to achieve the purpose and requirement of uniform dispersion of various materials by using this mixing method, which causes differences in the porosity of the cured green plate lead paste, the phase composition ratio of the lead paste and the microstructure, thereby affecting the consistency and stability of battery performance.

[0007] Traditionally, auxiliary materials (i.e. additives) are added manually, which is labor-intensive. Moreover, due to human error, omissions and mis-additions can cause quality accidents in batches of plates, causing certain losses to the company. In addition, auxiliary materials are powdery and contain short fibers and carbon black, which are relatively light substances, causing pollution to the working environment when adding them. Summary of the invention

[0008] The invention aims at the deficiencies in the prior art and provides a lead-acid battery paste mixing device capable of automatically loading auxiliary materials.

[0009] A lead-acid battery paste mixing device, comprising a paste mixing machine powder bin, the paste mixing machine powder bin having an auxiliary material feeding port, the lead-acid battery paste mixing device also includes:

[0010] Auxiliary material lower hopper, having a feed inlet and a discharge outlet, the discharge outlet is connected to the auxiliary material feeding inlet;

[0011] Auxiliary material placement position, used to place auxiliary material barrels;

[0012] The manipulator comprises a base which can move in horizontal and vertical directions, and a pair of clamping arms which are arranged on the base and can move relatively. The inner side of each clamping arm is provided with a clamping plate which clamps the auxiliary material barrel from the side and can rotate vertically.

[0013] The auxiliary material feeding chamber is arranged above the feeding port, the bottom surface is provided with an opening connected with the feeding port, and the side surface is provided with a sealed door for the robot to enter and exit;

[0014] The blocking rod is arranged in the auxiliary material feeding chamber and is used to block the bottom of the auxiliary material barrel and make the auxiliary material barrel tip over during the horizontal movement of the manipulator.

[0015] Preferably, the clamping plate is in an arc shape that matches the outer side of the auxiliary material barrel, and the clamping plate is rotatably connected to the clamping arm. The clamping plates on the two clamping arms cooperate with each other to clamp the auxiliary material barrel, and the clamping plate is rotatably connected to the clamping arm. When the bottom of the auxiliary material barrel is blocked by the blocking rod, as the base of the manipulator continues to move horizontally, the upper part of the auxiliary material barrel gradually tilts, and the clamping plate rotates with the auxiliary material barrel during the tilting process.

[0016] Preferably, the base is provided with a slide rail, the clamp arm is provided with a slide seat that cooperates with the slide rail and can slide toward each other along the slide rail, and the base is also provided with a cylinder that drives the slide seat to slide. The cylinder drives the slide seat to move along the slide rail, so that the two clamp arms move closer to or farther from each other, so that the clamp plate clamps or loosens the auxiliary material barrel.

[0017] The manipulator also includes a locking mechanism for locking the clamping plate to keep the clamping plate in a horizontal state. The locking mechanism includes a locking hole arranged on the clamping plate, and a retractable locking pin arranged on the clamping arm and locked with the locking hole.

[0018] The lead-acid battery paste mixing device includes a horizontal guide rail and a slider, wherein the slider has a first sliding direction that cooperates with the horizontal guide rail; the base is provided with a vertical guide rail, and the slider has a second sliding direction that cooperates with the vertical guide rail. The horizontal guide rail is arranged horizontally, and when the slider moves along the horizontal guide rail, it can drive the base to move together; the vertical guide rail is arranged vertically, and when the slider moves vertically relative to the base, since the slider cannot move vertically, the base moves vertically, thereby lifting or lowering the auxiliary material barrel. The slider is provided with a first servo motor that drives the slider to move along the horizontal guide rail, and a second servo motor that drives the base to move vertically.

[0019] Preferably, the horizontal guide rail is arranged above the auxiliary material feeding chamber, and the top surface of the auxiliary material feeding chamber is provided with a channel for the base to pass through, and a sealing brush strip is provided at the channel. The horizontal guide rail is arranged above the auxiliary material feeding chamber, so that the auxiliary material feeding chamber can be set relatively small. If the horizontal guide rail is also arranged in the auxiliary material feeding chamber, although the channel is no longer required, the auxiliary material feeding chamber needs to be set larger, and dust is easily accumulated inside, which is not conducive to keeping clean. The sealing brush strip can allow the base to pass through the channel, and also has a sufficient sealing effect to prevent dust from escaping from the channel.

[0020] In order to place more auxiliary material barrels at one time, so that after placing the auxiliary materials manually once, they can be used for continuous production of multiple pots of lead paste, reducing the number of times workers enter, an auxiliary material placement position is provided on each side of the auxiliary material feeding chamber, and the corresponding two sides of the auxiliary material feeding chamber are respectively provided with the sealing door. The auxiliary material placement position has a barrel placement rack, and the barrel placement rack is provided with a barrel positioning groove. Each barrel placement rack is provided with a plurality of barrel positioning grooves.

[0021] Preferably, the discharge port of the auxiliary material lower hopper is provided with a pneumatic butterfly valve for controlling the opening and closing of the discharge port.

[0022] The lead-acid battery paste mixing device of the present invention automatically lifts the auxiliary material barrel filled with auxiliary materials and transfers it to the auxiliary material feeding chamber by a manipulator. When the auxiliary material barrel moves horizontally, the lower side of the blocking rod and the column are blocked, so that when the base of the manipulator continues to move horizontally, the upper part of the auxiliary material barrel gradually tilts until it overturns, thereby pouring the auxiliary materials into the auxiliary material hopper and finally into the powder bin of the paste mixing machine. The auxiliary materials are automatically fed, which improves the automation level of the equipment, and the auxiliary materials are dumped in the auxiliary material feeding chamber during the feeding process, so that the dust is effectively controlled, and the pollution of the working environment during the feeding process is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the lead-acid battery paste mixing device of the present invention.

[0024] Figure 2 It is a side structural schematic diagram of a lead-acid battery paste mixing device of the present invention.

[0025] Figure 3 for Figure 2 A is a partial enlarged view.

[0026] Figure 4 It is a side structural schematic diagram of the lead-acid battery paste mixing device of the present invention from another viewing angle.

[0027] Figure 5 for Figure 4 Partial enlargement of B. DETAILED DESCRIPTION

[0028] like Figures 1 to 5 As shown, a lead-acid battery paste mixing device includes a paste mixing machine powder bin 1 and an auxiliary material discharge hopper 2, the paste mixing machine powder bin 1 has an auxiliary material feeding port, the auxiliary material discharge hopper 2 has a feeding port arranged at the top and a discharging port arranged at the bottom, the discharging port is connected to the auxiliary material feeding port of the paste mixing machine powder bin 1, and the discharging port of the auxiliary material discharge hopper 2 is provided with a pneumatic butterfly valve 21 for controlling the opening and closing of the discharging port.

[0029] An auxiliary material feeding chamber 5 is provided above the feed port of the auxiliary material lower hopper 2, and an opening connected to the feed port of the auxiliary material lower hopper 2 is provided on the bottom surface of the auxiliary material feeding chamber 5, so that the auxiliary material can be added into the auxiliary material lower hopper 2 through the opening in the auxiliary material feeding chamber 5, and then added into the powder bin 1 of the paste mixing machine.

[0030] The lead-acid battery paste device of the present invention further comprises a bracket 7, and an auxiliary material feeding chamber 5 is built on the bracket 7 and has a certain height from the ground where the entire lead-acid battery paste device is installed. Auxiliary material placement positions for placing auxiliary material barrels 3 are also provided on the ground on both sides of the auxiliary material feeding chamber 5. A manipulator 4 for grabbing and moving the auxiliary material barrels 3 is also provided on the bracket 7. The manipulator 4 can move horizontally and vertically, grab the auxiliary material barrel 3 from the auxiliary material placement position and transfer the auxiliary material barrel 3 to the auxiliary material feeding chamber 5 for auxiliary material addition. The auxiliary material placement position has a barrel placement rack 8, and the barrel placement rack 8 is provided with a barrel positioning groove 81. Each barrel placement rack 8 is provided with a plurality of barrel positioning grooves 81. A guide rail 82 is installed on the ground of the auxiliary material placement position, and a pulley 83 cooperating with the guide rail 82 is provided on the barrel placement rack 8. The barrel placement rack 8 can be driven by a cylinder 84 to move along the guide rail 82, so that the manipulator 4 can grab all the auxiliary material barrels 3.

[0031] In order to place more auxiliary material barrels 3 at one time, so that after placing the auxiliary material manually once, it can be used for continuous production of multiple pots of lead paste, reducing the number of times workers enter, an auxiliary material placement position is provided on each side of the auxiliary material feeding chamber 5, and a sealing door 51 is provided on the corresponding two sides of the auxiliary material feeding chamber 5. The sealing door 51 can be opened and closed, and when opened, the manipulator 4 can enter and exit the auxiliary material feeding chamber 5. A slide rail 54 is provided on the bracket 7, and a slide groove matching the slide rail 54 is provided on the sealing door 51. The sealing door 51 is driven to open and close by a cylinder 52.

[0032] The blocking rod 6 is arranged in the auxiliary material feeding chamber 5 and is used to block the bottom of the auxiliary material barrel 3 during the horizontal movement of the manipulator 4 to make the auxiliary material barrel 3 tip over. After tipping over, the auxiliary material in the auxiliary material barrel 3 is poured into the auxiliary material lower hopper 2.

[0033] The manipulator 4 comprises a base 41 movable in horizontal and vertical directions, and a pair of clamping arms 42 disposed on the base 41 and movable relatively to each other. A clamping plate 43 is disposed on the inner side of each clamping arm 42 and clamps the auxiliary material barrel 3 from the side and can rotate vertically.

[0034] The clamping plate 43 is in an arc shape that matches the outer side of the auxiliary material barrel 3, and the clamping plate 43 is rotatably connected to the clamping arm 42. The clamping plates 43 on the two clamping arms 42 cooperate with each other to clamp the auxiliary material barrel 3, and the clamping plates 43 are rotatably connected to the clamping arms 42. When the bottom of the auxiliary material barrel 3 is blocked by the blocking rod 6, as the base 41 of the manipulator 4 continues to move horizontally, the upper part of the auxiliary material barrel 3 gradually tilts, and the clamping plate 43 rotates with the auxiliary material barrel 3 during the tilting process.

[0035] The base 41 is provided with a slide rail 44, the clamping arm 42 is provided with a slide seat 45 which cooperates with the slide rail 44 and can slide toward each other along the slide rail 44, and the base 41 is also provided with a cylinder 46 which drives the slide seat 45 to slide. The cylinder 46 drives the slide seat 45 to move along the slide rail 44, so that the two clamping arms 42 are moved closer to or away from each other, so that the clamping plate 43 can clamp or loosen the auxiliary material barrel 3.

[0036] In order to keep the clamping plate 43 in a horizontal state before clamping the material barrel 3 so as to smoothly clamp the side wall of the auxiliary material barrel 3, a locking hole 48 is provided on the side of the clamping plate 43 away from the clamping, and a locking pin 49 that can be extended and retracted is provided on the clamping arm 42. A cylinder 410 for driving the locking pin 49 to extend and retract is also provided on the clamping arm 42. After the locking pin 49 extends into the locking hole 48, the clamping plate 43 is locked and can only maintain a horizontal state and cannot rotate. When the two clamping plates 43 clamp the auxiliary material barrel 3, the cylinder 410 drives the locking pin 49 to extend from the locking hole 48, thereby releasing the clamping plate 43, and the clamping plate 43 can rotate.

[0037] The lead-acid battery paste device of the present invention further includes a horizontal guide rail 71 and a slider 72. The horizontal guide rail 71 is arranged on the bracket 7 and is arranged across the auxiliary material feeding chamber 5. The slider 72 has a first sliding direction that cooperates with the horizontal guide rail 71. The base 41 is provided with a vertical guide rail 47, and the slider 72 has a second sliding direction that cooperates with the vertical guide rail 47. The horizontal guide rail 71 is arranged horizontally, and when the slider 72 moves along the horizontal guide rail 71, it can drive the base 41 to move together. The vertical guide rail 47 is arranged vertically. When the slider 72 moves vertically relative to the base 41, since the slider 72 cannot move vertically, the base 41 moves vertically, thereby lifting or lowering the auxiliary material barrel 3. The slider 72 is provided with a first servo motor 73 that drives the slider 72 to move along the horizontal guide rail 71, and a second servo motor 74 that drives the base 41 to move vertically.

[0038] The horizontal guide rail 71 is arranged above the auxiliary material feeding chamber 5. The top surface of the auxiliary material feeding chamber 5 is provided with a passage for the base 41 to pass through, and a sealing brush strip 53 is provided at the passage. The horizontal guide rail 71 is arranged above the auxiliary material feeding chamber 5, so that the auxiliary material feeding chamber 5 can be set relatively small. If the horizontal guide rail 71 is also arranged in the auxiliary material feeding chamber 5, although the passage is no longer required, the auxiliary material feeding chamber 5 needs to be set larger, and dust is easily accumulated inside, which is not conducive to keeping clean. The sealing brush strip 53 can allow the base 41 to pass through the passage, and also has a sufficient sealing effect to prevent dust from escaping from the passage.

[0039] During operation, a certain amount of auxiliary materials are first put into each auxiliary material barrel 3, and multiple auxiliary material barrels 3 filled with auxiliary materials are placed in the barrel positioning groove 81 on the barrel placement rack 8 for positioning. When adding auxiliary materials, the first servo motor 73 drives the slide block 72 to move in the horizontal direction along the horizontal guide rail 71 to move the manipulator 4 to the top of the auxiliary material barrel 3, and then the second servo motor 74 drives the base 41 to descend. When it descends to a suitable position, the cylinder 46 drives the slide block 45 to make the two clamping arms 42 approach, and the two clamping plates 43 clamp the auxiliary material barrel 3, and then the second servo motor 74 drives the base 41 to rise, and then the first servo motor 73 drives the slide block 72 to move in the horizontal direction along the horizontal guide rail 71, so that the bottom of the lifted auxiliary material barrel 3 hits the gear lever 6, and when the slide block 72 continues to move horizontally with the manipulator 4, the upper part of the auxiliary material barrel 3 gradually tilts, and after the auxiliary material barrel 3 flips over, the auxiliary material in the auxiliary material barrel 3 is poured into the auxiliary material lower hopper 2. When the manipulator 4 enters and exits the auxiliary material feeding chamber 5, the cylinder 52 drives the opening and closing of the sealing door 51 to ensure that the auxiliary material feeding chamber 5 remains airtight during the process of adding auxiliary materials.

Claims

1. A lead-acid battery paste mixing device, comprising a paste mixing machine powder bin, wherein the paste mixing machine powder bin has an auxiliary material feeding port, characterized in that: The lead-acid battery paste mixing device also includes: Auxiliary material lower hopper, having a feed inlet and a discharge outlet, the discharge outlet is connected to the auxiliary material feeding inlet; Auxiliary material placement position, used to place auxiliary material barrels; The manipulator comprises a base which can move in horizontal and vertical directions, and a pair of clamping arms which are arranged on the base and can move relatively. The inner side of each clamping arm is provided with a clamping plate which clamps the auxiliary material barrel from the side and can rotate vertically. The auxiliary material feeding chamber is arranged above the feeding port, the bottom surface is provided with an opening connected with the feeding port, and the side surface is provided with a sealed door for the robot to enter and exit; The blocking rod is arranged in the auxiliary material feeding chamber, and is used to block the bottom of the auxiliary material barrel and make the auxiliary material barrel tip over during the horizontal movement of the manipulator; The manipulator further comprises a locking mechanism for locking the clamping plate to keep the clamping plate in a horizontal state, wherein the locking mechanism comprises a locking hole provided on the clamping plate, and a retractable locking pin provided on the clamping arm and cooperating with the locking hole to lock the clamping plate; The lead-acid battery paste mixing device comprises a horizontal guide rail and a slider, wherein the slider has a first sliding direction that matches the horizontal guide rail; a vertical guide rail is provided on the base, and the slider has a second sliding direction that matches the vertical guide rail; The horizontal guide rail is arranged above the auxiliary material feeding chamber, the top surface of the auxiliary material feeding chamber is provided with a channel for the base to pass through, and a sealing brush strip is provided at the channel.

2. The lead-acid battery paste mixing device according to claim 1, characterized in that: The clamping plate is in an arc shape matched with the outer side surface of the auxiliary material barrel, and the clamping plate is rotatably connected to the clamping arm.

3. The lead-acid battery paste mixing device according to claim 1, characterized in that: The base is provided with a slide rail, the clamp arm is provided with a slide seat which cooperates with the slide rail and can slide toward each other along the slide rail, and the base is also provided with a cylinder which drives the slide seat to slide.

4. The lead-acid battery paste mixing device according to claim 1, characterized in that: An auxiliary material placement position is respectively provided on both sides of the auxiliary material feeding chamber, and the sealing doors are respectively provided on the corresponding two sides of the auxiliary material feeding chamber.

5. The lead-acid battery paste mixing device according to claim 1, characterized in that: The discharge port of the auxiliary material lower hopper is provided with a pneumatic butterfly valve for controlling the opening and closing of the discharge port.

6. The lead-acid battery paste mixing device according to claim 1, characterized in that: The auxiliary material placement position has a barrel placement rack, and the barrel placement rack is provided with a barrel positioning groove.

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