Lithium battery pole piece roll drying oven

Abstract

The utility model discloses a lithium battery pole piece roll drying oven which comprises a drying oven body, an inserting rod is fixedly connected to the inner cavity wall of the top of the drying oven body, a sleeve is arranged on the outer side of the inserting rod in a sleeved mode, a pushing component is arranged on the back face of the drying oven body, and a moving component is arranged at the connecting position of the sleeve and the inserting rod and comprises a prism strip. The prism strips are symmetrically arranged on the outer sides of the inserting rods, multiple rollers are symmetrically arranged on the sides, away from the inserting rods, of the prism strips, pressing strips are arranged at the tops of the rollers, and springback parts are arranged at the tops of the pressing strips and located in inner cavities of the sleeves; the sleeve is pushed by the pushing component to move along the inserting rod, the roller at the top of the prism strip is in contact with the pressing strip, and compared with sliding friction, the rolling friction coefficient of the rolling friction is low, so that the friction loss after the inserting rod is inserted by the sleeve for multiple times is reduced, the pressing strip is supported by the rebound part, and the pressing strip is prevented from being damaged after the pressing strip is abraded. The pressing strip is not contacted with the roller, so that the abrasion at the inserting part of the prism strip and the sleeve is aggravated.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to a lithium battery pole piece rolling oven. Background Art

[0002] Lithium battery pole pieces need to be dried during the manufacturing process. The drying operation can remove moisture and solvents in the battery pole pieces, ensure the dryness of the pole pieces, and improve the performance, safety and stability of the battery. When drying the pole pieces, the pole pieces need to be rolled into a roll and then dried. The existing oven generally inserts a sleeve wrapped with pole pieces into the outside of the insertion rod of the inner cavity of the rolling oven. After the drying is completed, the cylinder pushes the sleeve to roll the pole piece out. Due to the heavy mass of the pole piece, the sleeve and the insertion rod are in sliding friction during the pushing process. After multiple drying operations, the insertion rod that fixes the sleeve is severely worn, affecting the normal operation of the oven. Therefore, a new type of lithium battery pole piece rolling oven is needed. Utility Model Content

[0003] The purpose of the utility model is to provide a lithium battery pole piece rolling oven to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lithium battery pole piece roll drying oven, comprising an oven body, a plug rod is fixedly connected to the top inner cavity wall of the oven body, a sleeve for supporting the pole piece roll is sleeved on the outer side of the plug rod, a pushing member for unloading is arranged on the back of the oven body, a movable member for reducing the friction loss on the outer side of the plug rod is arranged at the connection between the sleeve and the plug rod, the movable member comprises a prismatic bar, the prismatic bar is symmetrically arranged on the outer side of the plug rod, a plurality of rollers are symmetrically arranged on the side of the prismatic bar away from the plug rod, a pressure strip is arranged on the top of the roller, and a rebound part is arranged on the top of the pressure strip and in the inner cavity of the sleeve.

[0005] Preferably, the rebound part includes a plurality of compression springs, one end of the plurality of compression springs is fixedly connected to the side of the pressure strip away from the roller, the inner wall of the sleeve is provided with a movable groove for the pressure strip to be inserted, and the other end of the plurality of compression springs is fixedly connected to the inner wall of the movable groove on the side away from the pressure strip.

[0006] Preferably, a plurality of limit rods are fixedly connected to the side of the pressure strip away from the roller, one end of the limit rod away from the pressure strip is inserted and connected to the inner wall of the movable groove, the inner wall of the movable groove is provided with a limit groove for the limit rod to be inserted, and one end of the limit rod is fixedly connected to the limit block inside the limit groove.

[0007] Preferably, the pushing member includes a double-axis cylinder, the output end of the double-axis cylinder is inserted and connected with a heat-insulating sleeve, one end of the heat-insulating sleeve is inserted and connected to the top inner cavity wall of the oven body, one end of the heat-insulating sleeve is fixedly connected with a push ring located in the top inner cavity of the oven body, and the heat-insulating sleeve is symmetrically arranged on the side of the insertion rod.

[0008] Preferably, a buffer ring is sleeved on the outer side of the insertion rod, and the buffer ring is fixedly connected to a side of the push ring away from the thermal insulation sleeve.

[0009] Preferably, a heat dissipation isolation plate is fixedly connected to the back side of the oven body.

[0010] Preferably, a sealing door is hinged on the top side of the oven body.

[0011] Technical effects and advantages of the utility model:

[0012] The utility model provides an insertion rod through the top inner cavity of the oven body, and a pushing component pushes the sleeve wrapped with the pole piece to move along the insertion rod, and the rollers provided with the prismatic strips on the outer side of the insertion rod are in contact with the pressure strips inserted through the inner wall of the sleeve. Compared with the sliding friction, the rolling friction of the rollers has a lower friction coefficient, which reduces the friction force and energy loss, and reduces the friction loss generated after the insertion rod is penetrated by the sleeve for many times. The rebound support of the pressure strip by the rebound part avoids the situation that after the pressure strip is worn, the pressure strip has no contact with the roller, resulting in aggravated wear at the insertion point of the prismatic strip and the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a top sectional view of the utility model as a whole.

[0015] Figure 3 For this utility model Figure 2 A magnified view of the structure at center.

[0016] In the figure: 1. oven body; 2. insertion rod; 3. prismatic bar; 4. sleeve; 401. movable groove; 402. limit groove; 5. heat dissipation isolation plate; 6. roller; 7. pressure strip; 8. compression spring; 9. limit rod; 901. limit block; 10. double-axis cylinder; 11. insulation sleeve; 12. push ring; 13. buffer ring; 14. sealing door. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0018] The utility model provides Figure 1-3 A lithium battery pole piece roll oven shown includes an oven body 1, a top inner cavity wall of the oven body 1 is fixedly connected with an insertion rod 2, a sleeve 4 for supporting the pole piece roll is sleeved on the outer side of the insertion rod 2, and a pushing member for unloading is arranged on the back of the oven body 1;

[0019] It should be noted that the working principle of the oven body 1 is the same as that of the AOD-LED-2 dryer. The rod 2 is fixed to the inner wall of the oven body 1 by welding. The back of the oven body 1 is fixedly connected to the heat dissipation isolation plate 5. The top side of the oven body 1 is hinged with a sealing door 14.

[0020] Specifically, the pushing component includes a double-axis cylinder 10, the output end of the double-axis cylinder 10 is inserted and connected with a heat-insulating sleeve 11, one end of the heat-insulating sleeve 11 is inserted and connected to the top inner cavity wall of the oven body 1, one end of the heat-insulating sleeve 11 is located in the top inner cavity of the oven body 1 and is fixedly connected with a push ring 12, the heat-insulating sleeve 11 is symmetrically arranged on the side of the insertion rod 2, and the outer side of the insertion rod 2 is sleeved with a buffer ring 13, and the buffer ring 13 is fixedly connected to the side of the push ring 12 away from the heat-insulating sleeve 11, and the double-axis cylinder 10 is welded and fixed to the heat dissipation isolation plate 5;

[0021] It should be noted that the heat-insulating sleeve 11 can reduce the conduction of heat and form a heat-insulating layer to reduce the heat transferred to the output end of the dual-axis cylinder 10. The diameter of the end of the heat-insulating sleeve 11 close to the dual-axis cylinder 10 is larger than the diameter of the insertion point of the heat-insulating sleeve 11 in the oven body 1. The dual-axis cylinder 10 is only pushed out by half the length of the sleeve 4. A forklift can be used to disassemble the pole piece roll later. The heat-insulating sleeve 11 and the push ring 12 are fixed by welding. The buffer ring 13 is made of silicone rubber, which can remain soft and elastic in a high temperature environment. The silicone rubber material buffers the connection between the push ring 12 and the pole piece roll to avoid damage to the edge of the pole piece roll during the pushing process of the push ring 12.

[0022] The connection between the sleeve 4 and the insertion rod 2 is provided with a moving member for reducing the friction loss on the outer side of the insertion rod 2;

[0023] Specifically, the moving member includes a prism bar 3, which is symmetrically arranged on the outside of the insertion rod 2, and a plurality of rollers 6 are symmetrically arranged on one side of the prism bar 3 away from the insertion rod 2, a pressure bar 7 is arranged on the top of the roller 6, and a rebound portion is arranged on the top of the pressure bar 7 and located in the inner cavity of the sleeve 4;

[0024] It should be noted that the side of the insertion rod 2 is fixed to the prism bar 3 by welding, and the top of the prism bar 3 is provided with a plurality of fixing grooves for fixing the roller 6. The material of the roller 6 is a nickel-based alloy material with excellent high temperature resistance;

[0025] Specifically, the rebound part includes a plurality of compression springs 8, one end of each of the plurality of compression springs 8 is fixedly connected to a side of the pressure strip 7 away from the roller 6, a moving groove 401 for the pressure strip 7 to be inserted is provided on the inner wall of the sleeve 4, and the other end of each of the plurality of compression springs 8 is fixedly connected to an inner wall of a side of the moving groove 401 away from the pressure strip 7;

[0026] It should be noted that the two ends of the compression spring 8 are respectively fixed to the pressure strip 7 and the inner wall of the movable groove 401 by welding, and the compression spring 8 is made of stainless steel, which can allow the compression spring 8 to work normally at the drying temperature;

[0027] Specifically, a plurality of limit rods 9 are fixedly connected to the side of the pressure strip 7 away from the roller 6, and one end of the limit rod 9 away from the pressure strip 7 is inserted and connected to the inner wall of the movable groove 401. The inner wall of the movable groove 401 is provided with a limit groove 402 for the limit rod 9 to be inserted, and one end of the limit rod 9 is fixedly connected to the limit block 901 inside the limit groove 402.

[0028] It should be noted that the moving groove 401 is a square groove, and a limiting groove 402 is provided on the inner wall of the moving groove 401. The limiting groove 402 is cylindrical, and the diameter of one end close to the moving groove 401 is smaller than the diameter of the other end. The other end of the limiting groove 402 is convenient for the limiting block 901 to limit the limiting rod 9. The limiting of the limiting rod 9 can prevent the compression spring 8 from relaxing and pushing the pressure strip 7 to move toward the center of the inner cavity of the sleeve 4, thereby affecting the initial squeezing process of the roller 6 on the pressure strip 7 in the moving groove 401.

[0029] During actual use, the dual-axis cylinder 10 drives the insulation sleeve 11 to push the sleeve 4 wrapped with the pole piece to move along the insertion rod 2, and the roller 6 arranged on the top of the prism bar 3 outside the insertion rod 2 contacts the pressure bar 7 inserted through the inner wall of the sleeve 4. The rolling friction of the roller 6 has a lower friction coefficient than the sliding friction, which reduces the friction force and energy loss, and reduces the friction loss of the insertion rod 2 after being penetrated by the sleeve 4 for many times. The compression spring 8 rebounds and supports the pressure bar 7, which avoids the situation where the pressure bar 7 has no contact with the roller 6 after the pressure bar 7 is worn, resulting in increased wear at the insertion point of the prism bar 3 and the sleeve 4.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lithium battery pole sheet coiling oven, comprising an oven body (1), characterized in that: The top inner cavity wall of the oven body (1) is fixedly connected with an insertion rod (2), the outer side of the insertion rod (2) is sleeved with a sleeve (4) for supporting the electrode roll, the back side of the oven body (1) is provided with a pushing member for unloading, and the connection between the sleeve (4) and the insertion rod (2) is provided with a moving member for reducing the friction loss on the outer side of the insertion rod (2), and the moving member includes a prism bar (3), the prism bar (3) is symmetrically arranged on the outer side of the insertion rod (2), and a plurality of rollers (6) are symmetrically arranged on the side of the prism bar (3) away from the insertion rod (2), a pressure strip (7) is arranged on the top of the roller (6), and a rebound portion is arranged at the top of the pressure strip (7) and located in the inner cavity of the sleeve (4).

2. A lithium battery pole piece coil oven according to claim 1, characterized in that: The rebound portion comprises a plurality of compression springs (8), one end of each of the plurality of compression springs (8) being fixedly connected to a side of the pressure strip (7) away from the roller (6), the inner wall of the sleeve (4) being provided with a movable groove (401) for the pressure strip (7) to pass through, and the other end of each of the plurality of compression springs (8) being fixedly connected to an inner wall of a side of the movable groove (401) away from the pressure strip (7).

3. A lithium battery pole sheet roll oven according to claim 2, characterized in that: A plurality of limiting rods (9) are fixedly connected to the side of the pressure strip (7) away from the roller (6); one end of the limiting rod (9) away from the pressure strip (7) is inserted and connected to the inner wall of the movable groove (401); the inner wall of the movable groove (401) is provided with a limiting groove (402) for the limiting rod (9) to be inserted; one end of the limiting rod (9) is fixedly connected to the limiting block (901) inside the limiting groove (402).

4. A lithium battery pole sheet roll oven according to claim 1, characterized in that: The pushing member comprises a double-axis cylinder (10), the output end of the double-axis cylinder (10) is inserted and connected with a heat-insulating sleeve (11), one end of the heat-insulating sleeve (11) is inserted and connected to the top inner cavity wall of the oven body (1), one end of the heat-insulating sleeve (11) is fixedly connected with a push ring (12) located in the top inner cavity of the oven body (1), and the heat-insulating sleeve (11) is symmetrically arranged on the side of the insertion rod (2).

5. A lithium battery pole piece coiling oven according to claim 4, characterized in that: A buffer ring (13) is sleeved on the outer side of the insertion rod (2), and the buffer ring (13) is fixedly connected to a side of the push ring (12) away from the heat insulation sleeve (11).

6. A lithium battery pole piece coiling oven according to claim 4, characterized in that: The back side of the oven body (1) is fixedly connected to a heat dissipation isolation plate (5).

7. A lithium battery pole piece coiling oven according to claim 6, characterized in that: A sealing door (14) is hingedly connected to the top side of the oven body (1).

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