A lithium battery coating valve with a back-suction structure

Abstract

This utility model relates to the field of coating valve technology, and in particular to a lithium battery coating valve with a back-suction structure, including a three-way pipe and a back-suction assembly. The back-suction assembly includes a first housing, and a back-suction chamber is formed on one side of the first housing. The back-suction chamber is connected to one side port of the three-way pipe. A first slider slides inside the back-suction chamber, and a push rod is welded to one side of the first slider. One end of the push rod extends to the outside of the first housing, and the push rod can slide within the first housing. This lithium battery coating valve with a back-suction structure solves the problem of tailing that easily occurs in small-gap coating scenarios in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of coating valve technology, and in particular to a lithium battery coating valve with a back-suction structure. Background Technology

[0002] Existing servo valve coating valves achieve material cut-off by changing the speed of the coating machine when performing small-gap coating processes. However, this method has a large delay, which makes the coating prone to tailing and is not suitable for small-gap coating. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies, such as the tendency for tailing to occur in small-gap coating scenarios, by proposing a lithium battery coating valve with a back-suction structure.

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

[0005] Design a lithium battery coating valve with a back-suction structure, including a three-way pipe, and also including:

[0006] The back-suction assembly includes a first housing, a back-suction chamber on one side of the first housing, the back-suction chamber being connected to one side port of the three-way pipe, a first slider sliding inside the back-suction chamber, a push rod welded to one side of the first slider, one end of the push rod extending to the outside of the first housing, and the push rod being able to slide within the first housing.

[0007] Preferably, the first slider is fitted with multiple sets of sealing rings, which slide against the inner wall of the suction chamber to achieve a sealing effect.

[0008] Preferably, it further includes a suction drive assembly, which includes a second housing, the second housing being connected to the first housing by bolts, a second slider being slidably mounted inside the second housing, the push rod being fixedly connected to the second slider, a third housing being connected to one end of the second housing by bolts, a servo motor being installed inside the third housing, a deflection shaft being installed on the output shaft of the servo motor, a sliding groove being provided inside the second slider, and one end of the deflection shaft being able to slide inside the sliding groove.

[0009] Preferably, a guide groove is provided on the inner end face of the second housing, and the outer periphery of the second slider slides inside the guide groove. The guide groove is used to improve the sliding stability of the second slider.

[0010] Preferably, a bearing is fitted at one end of the deflection shaft located inside the sliding groove, the bearing being used to reduce wear between the deflection shaft and the sliding groove.

[0011] Preferably, the sliding groove is a long strip-shaped groove structure.

[0012] Preferably, a sealing ring is abutting between the first housing and the three-way pipe.

[0013] The lithium battery coating valve with a back-suction structure proposed in this utility model has the following advantages:

[0014] The first housing contains a back-suction chamber. Inside the back-suction chamber, a push rod controls the sliding of the first slider, enabling the back-suction chamber to push and pull the three-way tube. When coating needs to be finished, the back-suction chamber pulls the three-way tube to generate negative pressure, allowing the coating material to be delivered more quickly and reducing tailing. When coating needs to be started, the back-suction chamber pushes the three-way tube, allowing the coating material to be delivered more quickly, making it more suitable for coating operations with small gaps. Attached Figure Description

[0015] Figure 1 A schematic diagram of the three-dimensional structure with the main body as the core;

[0016] Figure 2 A cross-sectional structural diagram of the main body;

[0017] Figure 3 This is a cross-sectional view of the second shell structure.

[0018] In the diagram: 1. Three-way pipe; 2. First housing; 3. Back suction chamber; 4. Push rod; 5. First slider; 6. Second housing; 7. Second slider; 8. Sliding groove; 9. Third housing; 10. Servo motor; 11. Deflection shaft. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Example 1

[0021] Reference Figure 1 , Figure 2 A lithium battery coating valve with a back-suction structure includes a three-way pipe 1, and further includes:

[0022] The back suction assembly includes a first housing 2, a back suction chamber 3 is provided on one side of the first housing 2, the back suction chamber 3 is connected to one side port of the three-way pipe 1, a first slider 5 slides inside the back suction chamber 3, a push rod 4 is welded to one side of the first slider 5, one end of the push rod 4 extends to the outside of the first housing 2, and the push rod 4 can slide inside the first housing 2.

[0023] Furthermore, refer to Figure 2 , Figure 3 It also includes a suction drive assembly, which includes a second housing 6, which is connected to the first housing 2 by bolts. A second slider 7 is slidably installed inside the second housing 6. A push rod 4 is fixedly connected to the second slider 7. A third housing 9 is connected to one end of the second housing 6 by bolts. A servo motor 10 is installed inside the third housing 9. A deflection shaft 11 is installed on the output shaft of the servo motor 10. A sliding groove 8 is opened inside the second slider 7. One end of the deflection shaft 11 can slide inside the sliding groove 8.

[0024] Furthermore, a guide groove is provided on the inner end face of the second housing 6, and the outer periphery of the second slider 7 slides inside the guide groove. The guide groove is used to improve the sliding stability of the second slider 7.

[0025] Furthermore, a bearing is fitted at one end of the deflection shaft 11 inside the sliding groove 8. The bearing is used to reduce wear between the deflection shaft 11 and the sliding groove 8, which is a long strip-shaped groove structure.

[0026] Furthermore, refer to Figure 2 A sealing ring is abutting between the first housing 2 and the three-way pipe 1.

[0027] Furthermore, refer to Figure 2 Multiple sets of sealing rings are sleeved around the first slider 5, and the sealing rings slide against the inner wall of the suction chamber 3 to achieve a sealing effect.

[0028] Working principle:

[0029] The push rod 4 and the first slider 5 assembly are placed inside the first housing 2, with one end of the push rod 4 extending through the first housing 2 to the outside; one side port of the three-way pipe 1 is connected to the first housing 2, and the suction chamber 3 inside the first housing 2 is connected to the three-way pipe 1; the first housing 2 is connected to the second housing 6, and the push rod 4 is connected to the second slider 7 inside the second housing 6; the second housing 6 is connected to the third housing 9, and the deflection shaft 11 is placed inside the sliding groove 8 opened in the second slider 7.

[0030] When the servo motor 10 is started, the output shaft of the servo motor 10 rotates. When the output shaft of the servo motor 10 rotates, it drives the deflection shaft 11 to rotate. The deflection shaft 11 performs eccentric motion, causing the deflection shaft 11 to rotate within the sliding groove 8. The lateral movement trajectory of the deflection shaft 11 is canceled out by the length of the sliding groove 8. The lateral movement trajectory of the deflection shaft 11 drives the second slider 7 to reciprocate within the second housing 6. When the second slider 7 reciprocates within the second housing 6, it can drive the push rod 4 and the first slider 5 assembly to perform push-pull actions. At this time, the first slider 5 slides within the suction chamber 3, enabling the suction chamber 3 to perform extraction and push actions towards the three-way pipe 1.

[0031] During small-gap coating operations, the servo motor 10 is activated during the gap when the coating nozzle breaks off. The servo motor 10 controls the first slider 5 to slide in the return suction chamber 3 through the above steps, so that the return suction chamber 3 draws the material into the three-way pipe 1. At this time, a large negative pressure is generated in the return suction chamber 3 and the three-way pipe 1, which allows the coating nozzle to break off the push of the coating material more quickly, thereby reducing coating tailing. The negative pressure of the return suction chamber 3 assists in the extraction, so that there is no need to frequently adjust the material delivery rate, making it more suitable for small-gap coating operations.

[0032] By using the negative pressure of the suction chamber 3, some of the coating material in the three-way tube 1 is drawn into the suction chamber 3. Therefore, when performing the next round of coating, the first slider 5 should be controlled by the servo motor 10 to slide in the suction chamber 3, so that the suction chamber 3 pushes the three-way tube 1. This method can not only discharge the coating material in the suction chamber 3, but also make the coating nozzle spray out the coating material more quickly, which is more suitable for small gap coating operations.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lithium battery coating valve with a back-suction structure, comprising a tee pipe (1), characterized in that: Also includes: The back suction assembly includes a first housing (2), a back suction chamber (3) is provided on one side of the first housing (2), the back suction chamber (3) is connected to one side port of the three-way pipe (1), a first slider (5) slides inside the back suction chamber (3), a push rod (4) is welded to one side of the first slider (5), one end of the push rod (4) extends to the outside of the first housing (2), and the push rod (4) can slide inside the first housing (2).

2. The coating valve with back suction structure for lithium battery according to claim 1, characterized in that: Multiple sets of sealing rings are sleeved around the first slider (5), and the sealing rings slide against the inner wall of the back suction chamber (3) to achieve a sealing effect.

3. The coating valve with back suction structure for lithium battery according to claim 1, characterized in that: It also includes a suction drive assembly, which includes a second housing (6), which is connected to the first housing (2) by bolts. A second slider (7) is slidably installed inside the second housing (6). The push rod (4) is fixedly connected to the second slider (7). A third housing (9) is connected to one end of the second housing (6) by bolts. A servo motor (10) is installed inside the third housing (9). A deflection shaft (11) is installed on the output shaft of the servo motor (10). A sliding groove (8) is opened inside the second slider (7). One end of the deflection shaft (11) can slide inside the sliding groove (8).

4. A lithium battery coating valve with a back-suction structure according to claim 3, characterized in that: The inner end face of the second housing (6) is provided with a guide groove, and the outer periphery of the second slider (7) slides inside the guide groove. The guide groove is used to improve the sliding stability of the second slider (7).

5. A lithium battery coating valve with a back-suction structure according to claim 3, characterized in that: The deflection shaft (11) is fitted with a bearing at one end inside the sliding groove (8). The bearing is used to reduce wear between the deflection shaft (11) and the sliding groove (8).

6. A lithium battery coating valve with a back-suction structure according to claim 5, characterized in that: The sliding groove (8) is a long strip-shaped groove structure.

7. A lithium battery coating valve with a back-suction structure according to claim 1, characterized in that: A sealing ring is abutting between the first housing (2) and the three-way pipe (1).

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