Device for negative pressure formation

Abstract

The utility model discloses a device for negative pressure formation, which comprises an acid feeding pipe, a negative pressure pipe and an acid pumping pipe which are respectively connected with an acid adding hole, a negative pressure pumping hole and an acid pumping hole, the acid feeding pipe, the negative pressure pipe and the acid pumping pipe are respectively provided with a section of hose which is respectively named as an acid feeding hose, a negative pressure hose and an acid pumping hose, and each hose is vertically arranged. A control mechanism used for controlling the hoses to be opened and closed is arranged on the support, and the control mechanism comprises a pressing block, a pressing rod and a pressing rod, the supporting surface is arranged on the support, the supporting surface and the pressing block are oppositely arranged on the two sides of the hose, and the supporting surface is used for supporting the hose when the pressing block extrudes the hose, so that the pressing block flattens the hose to close the hose; and the driving mechanism is arranged on the bracket and is used for driving the pressing block to move. According to the utility model, the driving structure is used for controlling the pressing block to press different hoses on the supporting surface, so that the integrated control of acid feeding, negative pressure pumping and acid pumping procedures is realized, and the battery production efficiency is improved.

Description

Technical Field

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

[0002] Lead-acid battery is a storage battery whose electrodes are mainly made of lead and its oxides, and whose electrolyte is sulfuric acid solution. When the lead-acid battery is discharged, the lead dioxide at the positive electrode and the spongy lead at the negative electrode are converted into lead sulfate; when charged, the lead sulfate at the positive and negative electrodes are converted into lead dioxide and spongy lead respectively.

[0003] Formation is a key process in the production of lead-acid batteries. Through charging and discharging, the positive active material is converted into lead dioxide, and the negative active material is converted into spongy lead. There are two common formation methods, plate formation and battery formation. Plate formation, also known as tank formation and external formation, inserts the positive and negative raw plates alternately into the formation tank, and the plates of the same polarity are arranged on the same side to form a multi-pole positive and negative electrode group for charging and forming mature plates. The battery is assembled with the formed mature plates. Non-dry-charged batteries also need to go through the acid addition and charging process. Battery formation, also known as internal formation, also known as "cadmium-free internal formation process", is to directly assemble the battery after the solidified and dried battery plates are cut and then acid is added to the battery for charging to obtain the finished product. Since the internal formation process eliminates the discharge of acid wastewater generated by tank formation in the production process of lead-acid batteries, the internal formation process is more environmentally friendly than the external formation process, so the internal formation process is gradually promoted and used in lead-acid battery production plants.

[0004] Whether it is plate formation or battery formation, it needs to go through the acid addition and charging process. Acid addition is a process in which a sulfuric acid solution enters the battery from an acid adding machine through an acid adding pot. Valve-regulated lead-acid batteries usually use vacuum negative pressure technology for acid addition. In recent years, vacuum negative pressure technology has also been gradually adopted for battery formation processes. In order to make the internal formation effect better, it is best to use negative pressure formation technology during the internal formation process. Negative pressure formation technology refers to the battery being charged and formed in a closed environment using a large current, and using a vacuum pressure device to remove the heat and acid mist generated during the formation. During the internal formation process, it is best to use negative pressure to discharge the gas inside the lead-acid battery and add acid to the lead-acid battery at the same time. It is also best to be able to control the acid injection speed. At present, it can only be done manually by pumping negative pressure and using an acid adding machine to control acid addition. The workload is large and the production efficiency is low. It is difficult to achieve large-scale production and needs further improvement.

[0005] Therefore, it is currently necessary to further improve the negative pressure extraction, acid extraction and acid addition processes in negative pressure formation. Utility Model Content

[0006] In order to overcome the deficiencies in the prior art, the utility model provides a device for negative pressure chemical formation, which can conveniently control the processes of adding acid, pumping negative pressure and pumping acid.

[0007] The technical solution adopted by the utility model to achieve the above technical purpose is:

[0008] A device for negative pressure formation, each lead-acid battery to be negatively pressure formed is equipped with an acid adding pot for negative pressure formation on the top surface, the acid adding pot is provided with an acid adding hole, a negative pressure extraction hole and an acid extraction hole on the top surface, the device comprises a bracket, the device also comprises an acid lowering pipe, a negative pressure pipe and an acid extraction pipe respectively connected to the acid adding hole, the negative pressure extraction hole and the acid extraction hole, the acid lowering pipe, the negative pressure pipe and the acid extraction pipe all have a section of hose, respectively named as the acid lowering hose, the negative pressure hose and the acid extraction hose, each hose is vertically arranged, the bracket is provided with a control mechanism for controlling the opening and closing of each hose, the control mechanism comprises:

[0009] There is one pressure block on each side of each hose.

[0010] A support surface is provided on the bracket and is provided on both sides of the hose opposite to the pressing block. The support surface is used to support the hose when the pressing block squeezes the hose so that the pressing block flattens the hose to close the hose.

[0011] The driving mechanism is arranged on the support and is used to drive the pressing block to move. By controlling the closing of each hose, the integrated control of acid addition, negative pressure extraction and acid extraction process is realized to improve the production efficiency.

[0012] Preferably, each of the acid discharge pipe, negative pressure pipe and acid extraction pipe is also provided with a pressure relief pipe at the part below the hose, and a pressure relief valve for controlling the opening and closing of the pressure relief pipe is provided on the pressure relief pipe to prevent excessive pressure and to adjust the internal pressure.

[0013] The acid down-pipe, negative pressure pipe and acid extraction pipe are connected to the acid adding pot through the acid down-pipe branch pipe, negative pressure branch pipe and acid extraction branch pipe respectively. Each acid down-pipe, negative pressure pipe and acid extraction pipe is respectively provided with 2 or more acid down-pipe branch pipes, negative pressure branch pipes and acid extraction branch pipes.

[0014] Each acid-feeding tube, negative pressure tube and acid extraction tube form a small group, and multiple small groups form a large group. The pressing blocks corresponding to each acid-feeding hose, each negative pressure hose or each acid extraction hose in each large group are driven and controlled by a group of driving mechanisms.

[0015] Each set of driving mechanisms includes a mounting bar for mounting corresponding pressing blocks, and a cylinder provided on the bracket for driving the mounting bar to move, thereby realizing integrated control.

[0016] Each set of driving mechanisms includes a plurality of cylinders arranged at intervals along the length direction of the mounting bar.

[0017] The bracket is provided with guide grooves matched with the two ends of the mounting strip.

[0018] Each large group is provided with three sets of driving mechanisms, and the three mounting bars in the three sets of driving mechanisms are arranged in a vertically staggered manner, and the staggered arrangement facilitates the control of the three hoses.

[0019] The utility model controls the pressing blocks through the driving structure to press different hoses against the supporting surface, thereby realizing the integrated control of acid feeding, negative pressure extraction and acid extraction processes, and improving the battery production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 It is a front view of the device of the utility model;

[0022] Figure 3 It is a front view of the combined use of the device of the utility model;

[0023] Figure 4 It is a side view of the combined use of the device of the utility model;

[0024] Figure 5 It is a side view of the device of the utility model;

[0025] Markings in the figure: 1-negative pressure pipe, 2-acid extraction pipe, 3-acid lower pipe, 4-pressing block, 5-support surface, 6-driving mechanism, 7-pressure relief pipe, 8-pressure relief valve, 9-negative pressure branch pipe, 10-acid lower branch pipe, 11-acid extraction branch pipe, 12-mounting bar, 13-cylinder, 14-guide groove. DETAILED DESCRIPTION

[0026] See also Figures 1 to 5 The utility model is a negative pressure forming device. The top surface of each lead-acid battery to be formed under negative pressure is equipped with an acid adding pot for negative pressure forming. The top surface of the acid adding pot is provided with an acid adding hole, a negative pressure extraction hole and an acid extraction hole. The device includes a bracket. The device also includes a lower acid pipe 3, a negative pressure pipe 1 and an acid extraction pipe 2 respectively connected to the acid adding hole, the negative pressure extraction hole and the acid extraction hole. The lower acid pipe 3, the negative pressure pipe 1 and the acid extraction pipe 2 all have a section of hose, respectively named as the lower acid hose, the negative pressure hose and the acid extraction hose. Each hose is vertically arranged. A control mechanism for controlling the opening and closing of each hose is provided on the bracket. The control mechanism includes:

[0027] A pressure block 4 is provided on one side of each hose.

[0028] The support surface 5 is arranged on the bracket and is arranged on both sides of the hose opposite to the pressing block 4. The support surface 5 is used to support the hose when the pressing block 4 squeezes the hose so that the pressing block 4 flattens the hose to close the hose.

[0029] The driving mechanism 6 is arranged on the bracket and is used to drive the pressing block 4 to move. During negative pressure formation, the driving mechanism 6 drives the pressing block 4 to move to the corresponding acid-adding hose, negative pressure hose or acid extraction hose, and the pressing block 4 squeezes the hose onto the supporting surface 5 to close the hose. By controlling the closing of each hose, the integrated control of the acid-adding, negative pressure extraction and acid extraction processes is realized to improve the production efficiency.

[0030] Each acid down pipe, negative pressure pipe and acid extraction pipe are also provided with a pressure relief pipe 7 at the part below the hose, and a pressure relief valve 8 for controlling the opening and closing of the pressure relief pipe is provided on the pressure relief pipe 7. To prevent excessive pressure, the internal pressure can be adjusted.

[0031] The acid-feeding pipe 3, the negative pressure pipe 1 and the acid-extracting pipe 2 are connected to the acid-adding pot through the acid-feeding branch pipe 10, the negative pressure branch pipe 9 and the acid-extracting branch pipe 11, and each of the acid-feeding pipe, the negative pressure pipe and the acid-extracting pipe is respectively provided with 2 or more acid-feeding branch pipes 10, the negative pressure branch pipe 9 and the acid-extracting branch pipe 11. Figure 1 and Figure 2 Only an example with 2 roots is shown.

[0032] Each acid-feeding tube, negative pressure tube and acid extraction tube forms a small group, and multiple small groups form a large group. The pressing blocks corresponding to each acid-feeding hose, each negative pressure hose or each acid extraction hose in each large group are driven and controlled by a group of driving mechanisms 6.

[0033] Each set of driving mechanisms includes a mounting bar 12 for mounting corresponding pressing blocks 4, and a cylinder 13 disposed on a bracket for driving the mounting bar 12 to move.

[0034] Each set of driving mechanisms 6 includes a plurality of cylinders arranged at intervals along the length direction of the mounting bar, so that integrated control can be achieved.

[0035] The bracket is provided with guide grooves 14 which match with the two ends of the mounting strip 12 .

[0036] Each large group is provided with three sets of driving mechanisms, and the three mounting bars in the three sets of driving mechanisms are arranged in a vertically staggered manner, and the staggered arrangement facilitates the control of the three hoses.

[0037] When the utility model is used, taking the negative pressure extraction as an example, the cylinder 13 in the driving mechanism 6 is turned on to drive the mounting bar 12 to move, so that the pressing block 4 and the supporting surface 5 on the mounting bar 12 act to flatten the acid lower hose and the acid extraction hose, so that they are closed, and then the negative pressure extraction operation is performed. When the negative pressure formation is completed, the pressure relief valve 8 is opened to release the pressure through the pressure relief pipe 7.

Claims

1. A negative pressure formation device, wherein the top surface of each lead-acid battery to be formed under negative pressure is equipped with an acid adding pot for negative pressure formation, and the top surface of the acid adding pot is provided with an acid adding hole, a negative pressure extraction hole and an acid extraction hole, and the device comprises a bracket, characterized in that: The device also includes an acid lowering pipe, a negative pressure pipe and an acid extraction pipe for being respectively connected to the acid adding hole, the negative pressure extraction hole and the acid extraction hole, wherein the acid lowering pipe, the negative pressure pipe and the acid extraction pipe all have a section of hose, respectively named as the acid lowering hose, the negative pressure hose and the acid extraction hose, each hose is arranged vertically, and a control mechanism for controlling the opening and closing of each hose is provided on the bracket, and the control mechanism includes: There is one pressure block on each side of each hose. A support surface is provided on the bracket and is provided on both sides of the hose opposite to the pressing block. The support surface is used to support the hose when the pressing block squeezes the hose so that the pressing block flattens the hose to close the hose. The driving mechanism is arranged on the bracket and is used for driving the pressing block to move.

2. The negative pressure forming device according to claim 1, characterized in that: Each acid down pipe, negative pressure pipe and acid extraction pipe is also provided with a pressure relief pipe at the part below the hose, and a pressure relief valve for controlling the opening and closing of the pressure relief pipe is provided on the pressure relief pipe.

3. The negative pressure forming device according to claim 1, characterized in that: The acid down-pipe, negative pressure pipe and acid extraction pipe are connected to the acid adding pot through the acid down-pipe branch pipe, negative pressure branch pipe and acid extraction branch pipe respectively. Each acid down-pipe, negative pressure pipe and acid extraction pipe is respectively provided with 2 or more acid down-pipe branch pipes, negative pressure branch pipes and acid extraction branch pipes.

4. The negative pressure forming device according to claim 1, characterized in that: Each acid-feeding tube, negative pressure tube and acid extraction tube form a small group, and multiple small groups form a large group. The pressing blocks corresponding to each acid-feeding hose, each negative pressure hose or each acid extraction hose in each large group are driven and controlled by a group of driving mechanisms.

5. The negative pressure forming device according to claim 4, characterized in that: Each set of driving mechanisms comprises a mounting bar for mounting corresponding pressing blocks, and a cylinder arranged on the bracket for driving the mounting bar to move.

6. The negative pressure forming device according to claim 5, characterized in that: Each set of driving mechanisms includes a plurality of cylinders arranged at intervals along the length direction of the mounting bar.

7. The negative pressure forming device according to claim 5, characterized in that: The bracket is provided with guide grooves matched with the two ends of the mounting strip.

8. The negative pressure forming device according to claim 5, characterized in that: Each large group is correspondingly provided with three groups of driving mechanisms, and the three mounting bars in the three groups of driving mechanisms are arranged in a vertically staggered manner.

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