Vacuum transfer device for battery pole piece roll

Abstract

The utility model discloses a battery pole piece roll vacuum transfer device which comprises a transfer vehicle body and a pole piece installation support, blocking prevention structures are arranged on the two sides of the top of the pole piece installation support, a supporting steel pipe is erected between the two blocking prevention structures, and a coating pole piece roll is arranged on the outer side of the supporting steel pipe in a sleeved mode. And a vacuum valve and a vacuum negative pressure meter are arranged on one side wall of the transfer vehicle body. The transfer trolley body is arranged, the vacuum valve and the vacuum negative pressure meter are arranged on the transfer trolley and can be used for extracting a vacuum pipe, a battery pole piece roll is arranged in the transfer trolley, the transfer trolley is used for transferring the battery pole piece from a coating procedure to a next procedure, and in the process, the transfer trolley can be used for preventing the battery pole piece from being externally polluted; great convenience is provided for safe transfer of the battery cell coating pole piece roll, rapid transfer is facilitated, and the rolling efficiency and the rolling quality of the battery cell pole piece are improved; and meanwhile, the pole piece mounting bracket and the anti-blocking structure are arranged in the transfer trolley, so that the stability of the battery pole pieces in the transfer process can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pole piece manufacturing, in particular to a battery pole piece roll vacuum transfer device. Background Art

[0002] Lithium-ion batteries are known as the "green chemical energy" of the 21st century and have been widely used in many fields such as 3C consumer electronics, power batteries, and energy storage. The shells of square hard-shell lithium-ion batteries are mostly made of aluminum alloy, stainless steel and other materials, and the internal winding or lamination process is used. The protection of the battery cell is better than that of soft-pack batteries, and the safety of the battery cell has also been greatly improved relative to cylindrical batteries. Square lithium-ion battery packs usually refer to square batteries with aluminum shells or steel shells. The popularity of square batteries is currently very high in China. With the rise of automotive power lithium batteries in recent years, the contradiction between vehicle range and battery capacity has become increasingly prominent. Domestic power lithium battery manufacturers mainly use aluminum shell square batteries with higher energy density.

[0003] The square aluminum shell battery controls the electrode compaction density within the standard process range through roller pressing. In order to obtain the appropriate electrode compaction density, the coated electrode needs to be transferred to a suitable roller press for roller pressing. However, there is no dedicated electrode roll transfer device when transferring from the coating workshop to a suitable roller press workshop which is far away. The risk of damage to the electrode during transportation is relatively high, and the moisture in the air can easily enter the battery cell electrode during transportation, which is very harmful to the battery cell.

[0004] Therefore, when designing and producing aluminum shell battery cells, it is necessary to optimize the design of the transportation of the electrode sheets after coating the square shell battery in order to improve battery performance and reduce production costs. Utility Model Content

[0005] The technical problem to be solved by the utility model is: how to optimize the transportation of the pole pieces of the square shell battery after coating.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A battery electrode roll vacuum transfer device comprises a transfer vehicle body and a electrode mounting bracket arranged in the transfer vehicle body, wherein anti-blocking structures are arranged on both sides of the top of the electrode mounting bracket, wherein a supporting steel pipe is erected between the two anti-blocking structures, and a coated electrode roll is sleeved on the outer side of the supporting steel pipe; a vacuum valve and a vacuum negative pressure gauge are arranged on one side wall of the transfer vehicle body.

[0008] The present application sets up a transfer vehicle body, and the transfer vehicle is provided with a vacuum valve and a vacuum negative pressure gauge for extracting the vacuum tube. The battery electrode roll is placed in the transfer vehicle, and the transfer vehicle is used to transfer the battery electrode from the coating process to the next process. In this process, the use of the transfer vehicle can prevent the battery electrode from being contaminated by the outside, which provides great convenience for the safe transportation of the coated electrode rolls of the battery cell, is conducive to rapid transportation, and improves the rolling efficiency and rolling quality of the battery cell electrode; at the same time, a electrode mounting bracket is provided in the transfer vehicle, and a protective structure is provided on the electrode mounting bracket to ensure the stability of the battery electrode during transportation.

[0009] As a further solution of the utility model: the left and right sides of the transfer vehicle body are respectively provided with a left panel wall and a right panel wall, the top is provided with a top panel wall, and the bottom is provided with a bottom panel wall. The front side of the transfer vehicle body is rotatably connected to a front baffle door, and the front baffle door is sealed with the transfer vehicle body when closed.

[0010] As a further solution of the utility model: the connection between the plate walls of the transfer vehicle body is sealed by a sealant, and the sealant is made of fluororubber.

[0011] As a further solution of the utility model: universal wheels are arranged at the four corners of the bottom of the bottom panel wall, and a door universal wheel is also installed at the bottom of the front door.

[0012] As a further solution of the utility model: the supporting steel pipe uses a pole piece roll to support a galvanized steel pipe.

[0013] As a further solution of the utility model: the wall thickness of the galvanized steel pipe supporting the pole piece roll is 4MM, the outer diameter is 60MM, the inner diameter is 52MM, and a single steel pipe can bear a load of 400KG.

[0014] As a further solution of the utility model: the pole piece mounting bracket includes a symmetrically arranged left support frame and a right support frame, wherein the bottom of the left support frame and the right support frame can be removably installed inside the transfer vehicle body, and the left support frame and the right support frame are removably fixed through the support frame.

[0015] As a further solution of the utility model: the two anti-blocking structures are respectively installed above the left support frame and the right support frame, and the anti-blocking structures can just engage with the coated electrode roll.

[0016] As a further solution of the utility model: the height of the blocking structure is less than the wall thickness of the roll of the coated pole piece roll.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The present application sets up a transfer vehicle body, and the transfer vehicle is provided with a vacuum valve and a vacuum negative pressure gauge for extracting the vacuum tube. The battery electrode roll is placed in the transfer vehicle, and the transfer vehicle is used to transfer the battery electrode from the coating process to the next process. In this process, the use of the transfer vehicle can prevent the battery electrode from being contaminated by the outside, which provides great convenience for the safe transportation of the coated electrode rolls of the battery cells, is conducive to rapid transportation, and improves the rolling efficiency and rolling quality of the battery cell electrode rolls; at the same time, a electrode mounting bracket is provided in the transfer vehicle, and a protective structure is provided on the electrode mounting bracket to ensure the stability of the battery electrode during the transportation process. The present application has high transportation reliability, and the transportation of the battery cell electrode rolls can protect the electrode rolls to the maximum extent, reducing production and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a vacuum transfer device for battery pole sheet rolls according to an embodiment of the utility model;

[0020] Figure 2 This is a front view of the vacuum transfer device for battery pole sheet rolls according to an embodiment of the utility model;

[0021] Figure 3 It is a side view of the vacuum transfer device for battery pole sheet rolls according to an embodiment of the utility model;

[0022] Explanation of the reference numerals in the accompanying drawings: 1. Left support frame; 2. Support steel pipe; 3. Left side panel wall; 4. Coated electrode roll; 5. Top panel wall; 6. Right side panel wall; 7. Anti-blocking structure; 8. Right support frame; 9. Universal wheel; 10. Bottom panel wall; 11. Door universal wheel; 12. Support rod; 13. Front door; 14. Hinge; 15. Vacuum valve; 16. Vacuum negative pressure gauge. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1 and Figure 3A battery electrode roll vacuum transfer device comprises a transfer vehicle body and a coated electrode roll 4 arranged in the transfer vehicle body, wherein the bottom of the coated electrode roll 4 is supported by a electrode mounting bracket. It should be noted that the transfer vehicle body is composed of a left side panel wall 3, a right side panel wall 6, a top panel wall 5, a bottom panel wall 10, a front baffle 13 and a rear door to form a vehicle frame, and the thickness of each door panel is about 50 mm. The connection between the panel walls of the transfer vehicle body is sealed by a sealant, and the sealant is made of fluororubber; the left side panel wall 3 and the right side panel wall 6 are respectively located on the left and right sides of the transfer vehicle body, the top panel wall 5 and the bottom panel wall 10 are respectively located on the upper and lower sides of the transfer vehicle body, the front baffle 13 and the rear door are respectively located on the front and rear sides of the transfer vehicle body, wherein the front baffle 13 is rotatably connected by a hinge 14 and can be opened to place the battery electrode roll, and the front baffle 13 is sealed with the transfer vehicle body when closed.

[0025] Reference Figure 1 and Figure 2 The pole piece mounting bracket includes a left support frame 1, a blocking structure 7, a right support frame 8 and a support frame 12, wherein the left support frame 1 and the right support frame 8 are symmetrically arranged, both of which are inverted "U"-shaped structures, and the left support frame 1 and the right support frame 8 are connected by a support rod 12 to ensure the stability between the left support frame 1 and the right support frame 1, and the bottom of the left support frame 1 and the right support frame 8 can be detachably mounted on the bottom plate wall 10 by bolts or pins.

[0026] Furthermore, an anti-blocking structure 7 is designed and installed on the left support frame 1 and the right support frame 8 at the left and right ends of the electrode roll to prevent the electrode roll from moving left and right during transportation of the vacuum transfer vehicle and causing the electrode to hit the bracket. The height of the anti-blocking structure 7 is about 22.5mm less than the wall thickness of the roll. The anti-blocking structures at both ends are fixed with two other special brackets. The positioning and installation of the anti-connection mechanism is designed by quick installation and quick disassembly, and is not fixed by screws.

[0027] It should be noted that a supporting steel pipe 2 is set between the two blocking structures 7, and a coated pole piece roll 4 is sleeved on the outside of the supporting steel pipe 2. The supporting steel pipe 2 uses a pole piece roll supporting galvanized steel pipe, the wall thickness of the pole piece roll supporting galvanized steel pipe is 4MM, the outer diameter is 60MM, the inner diameter is 52MM, and a single steel pipe can bear 400KG. This steel pipe can meet the use of pole piece rolls of different lengths. The two blocking structures 7 can just engage with the coated pole piece roll 4 to achieve the limit of the coated pole piece roll 4.

[0028] Reference Figure 1 Universal wheels 9 are provided at the four corners of the bottom of the bottom panel wall 10, and a door universal wheel 11 is also installed at the bottom of the front door 13. The three universal wheels are used to assist the movement of the transfer vehicle of the present application. At the same time, firm handles are installed on the front and rear sides of the transfer device to facilitate pushing after placing the pole roll, which is convenient for movement.

[0029] The bottom panel of the electrode roll vacuum transfer vehicle of the present application is 200 mm above the ground, that is, the height of the universal wheels is 200 mm, which can meet the needs of various types of lifting vehicles to enter the transfer device to take and place the electrode rolls.

[0030] Reference Figure 1 and Figure 3 In this application, a vacuum valve 15 and a vacuum negative pressure gauge 16 are provided at the lower position of the right side panel wall 6, which can draw a vacuum inside the transfer vehicle body, and the vacuum degree meets -50KPA, and the negative pressure gauge range is: -0.1~0MPA.

[0031] The electrode roll vacuum transfer device of the present application is 1604mm wide, 1612mm high, and 1055mm deep.

[0032] The specific operating principles of this application are as follows:

[0033] S1, insert a galvanized steel tube 2 into the middle of the coated electrode roll 4 after the battery is coated;

[0034] S2. Use a special lifting vehicle to place the coated electrode roll 4 on the left and right supports inside the vacuum transport vehicle. The weight of the electrode roll is supported on the support by a galvanized steel pipe 2. The blocking structures 7 on the left and right sides of the electrode roll are adjusted to ensure that the electrode roll cannot move back and forth. Generally, the roll material of the coated electrode roll 4 is ABS, and the steel pipe supporting the electrode roll is steel, and the steel is galvanized on the outside.

[0035] S3. Close the front baffle door 13 on the front of the vacuum transfer vehicle, tighten the bolts of the door, push the vacuum transfer device into the freight air shower room of the workshop, and then push it out of the freight air shower room to the vacuum area. It should be noted that after the electrode roll is placed on the bracket inside the vacuum transfer vehicle, the front baffle door 13 on the front of the vacuum transfer vehicle must be closed. The vacuum transfer device can be pushed out of the freight air shower room only after the bolts of the door are tightened. Otherwise, if the door is not closed tightly, moisture in the air outside the workshop can easily enter the electrode;

[0036] S4. Connect the main vacuum pipe with the vacuum pipe on the vacuum transfer vehicle body with a special quick-connect connector, and tighten the screws on the clamp after the quick-connect connection;

[0037] S5. Open the valve on the main vacuum pipeline and start vacuuming. At the same time, observe the actual value of the vacuum negative pressure gauge 16 on the vacuum transfer vehicle in real time. When the pointer on the vacuum negative pressure gauge reaches -50Kpa, close the valve. At this time, the electrode roll is in a negative pressure holding state. It should be noted that after the vacuum valve is opened, the actual value change of the vacuum negative pressure gauge on the vacuum transfer device must be carefully observed. When the pointer on the vacuum negative pressure gauge 16 reaches -50Kpa, the valve must be closed immediately to prevent the electrode roll from deforming into a bullet shape after the vacuum negative pressure value is too large, thereby damaging the electrode roll;

[0038] S6. Use a forklift to transport the vacuum transfer vehicle loaded with a roll of electrode material to the freight air shower room of the rolling workshop, and then push the vacuum transfer vehicle from the freight air shower room to the line-side warehouse of the transfer workshop. It should be noted that the forklift should travel at a uniform and slow speed during the transportation of the electrode roll, and should not travel fast. Try to reduce the vibration of the transfer device during the transportation process to reduce the damage to the electrode roll;

[0039] S7. Open the vacuum valve 15 on the vacuum pipe on the vacuum transfer vehicle to break the vacuum, and observe the actual value of the vacuum negative pressure gauge 16 in real time. When the pointer on the vacuum negative pressure gauge 16 reaches 0Kpa, close the valve. It should be noted that during the process of breaking the vacuum pressure of the vacuum transfer vehicle and restoring the air pressure to normal atmospheric pressure, the personnel must carefully observe the actual display value of the vacuum negative pressure gauge. When it reaches 0Kpa, the valve must be closed immediately. It is prohibited to fail to close the valve in time after reaching 0Kpa.

[0040] S8. Open the front door 13 (made of steel) on the front of the vacuum transfer vehicle, slowly push the special lifting vehicle into the vacuum transfer device, slowly remove the electrode roll from the bracket of the vacuum transfer device, and then take the galvanized steel pipe 2 out of the electrode roll and put it back on the left and right support frames of the vacuum transfer vehicle.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A battery pole sheet roll vacuum transfer device, characterized in that: It comprises a transport vehicle body and a pole piece mounting bracket arranged in the transport vehicle body, wherein both sides of the top of the pole piece mounting bracket are provided with a blocking structure (7), wherein a supporting steel pipe (2) is arranged between the two blocking structures (7), and a coated pole piece roll (4) is arranged on the outer side of the supporting steel pipe (2); A vacuum valve (15) and a vacuum negative pressure gauge (16) are provided on one side wall of the transfer vehicle body.

2. A battery pole sheet roll vacuum transfer device according to claim 1, characterized in that: The left and right sides of the transfer vehicle body are respectively provided with a left panel wall (3) and a right panel wall (6), the top is provided with a top panel wall (5), and the bottom is provided with a bottom panel wall (10). The front side of the transfer vehicle body is rotatably connected to a front baffle door (13), and the front baffle door (13) is sealed with the transfer vehicle body when it is closed.

3. A battery pole sheet roll vacuum transfer device according to claim 2, characterized in that: The connection between the plate walls of the transfer vehicle body is sealed by a sealant, and the sealant is made of fluororubber.

4. A battery pole sheet roll vacuum transfer device according to claim 2, characterized in that: Universal wheels (9) are provided at the four corner positions at the bottom of the bottom panel wall (10), and a door universal wheel (11) is also installed at the bottom of the front door (13).

5. The battery pole sheet roll vacuum transfer device according to claim 1, characterized in that: The supporting steel pipe (2) is a galvanized steel pipe supported by a pole piece roll.

6. A battery pole sheet roll vacuum transfer device according to claim 5, characterized in that: The wall thickness of the galvanized steel pipe supporting the pole piece coil is 4MM, the outer diameter is 60MM, the inner diameter is 52MM, and a single steel pipe can bear a load of 400KG.

7. The battery pole sheet roll vacuum transfer device according to claim 1, characterized in that: The pole piece mounting bracket comprises a symmetrically arranged left support frame (1) and a right support frame (8), wherein the bottoms of the left support frame (1) and the right support frame (8) can be detachably mounted inside the transport vehicle body, and the left support frame (1) and the right support frame (8) are detachably fixed via a support rod (12).

8. A battery pole sheet roll vacuum transfer device according to claim 7, characterized in that: The two blocking structures (7) are respectively installed above the left support frame (1) and the right support frame (8), and the blocking structures (7) can just engage with the coated electrode roll (4).

9. A battery pole sheet roll vacuum transfer device according to claim 8, characterized in that: The height of the blocking structure (7) is less than the wall thickness of the roll of the coated pole piece roll (4).

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