Coating die head movement limiting device

Abstract

The utility model discloses a coating die head movement limiting device which comprises a coating machine body and a die head platform, the coating machine body comprises fixed platforms which are symmetrically arranged, the two sides of the die head platform are respectively connected with the fixed platforms in a sliding mode through a translation assembly, the translation assembly comprises a sliding block, and the sliding block is connected with the die head platform in a sliding mode. The sliding block is rotationally connected with the die head platform through a rotating assembly, the rotating assembly comprises a rotating shaft, and a Hall sensor fixedly connected with the rotating shaft is arranged on the rotating shaft in a surrounding mode. According to the coating die head movement limiting device disclosed by the utility model, the die head has a memory effect and can automatically return to a coating position so as to meet the requirements of different movement positions in various working scenes such as coating, cleaning, slurry circulation and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of coating, in particular to a coating die head movement limiting device. Background Art

[0002] The application scope of lithium batteries is getting wider and wider, and their importance in life, industry, military and aerospace is also increasing. As the market grows, the requirements for production cost control and production automation and mechanization are getting higher and higher. In the coating process, the stability of surface density is particularly important for product quality and battery capacity consistency.

[0003] In the prior art, the commonly used method to control the surface density stability is to adjust the gap between the die head and the backing roller. However, many die heads need to change their original positioning when the internal slurry is circulated or the entire die head is disassembled for cleaning, and the position needs to be readjusted when it is used again. This process consumes a lot of manpower and time, and greatly increases the production cost. Utility Model Content

[0004] The purpose of the utility model is to provide a coating die head movement limit device, the die head has a memory effect, can automatically return to the coating position to meet the needs of different moving positions in various working scenes such as coating, cleaning, slurry circulation, etc.

[0005] To achieve the above-mentioned purpose, the utility model provides a coating die head moving limit device, including a coating machine body and a die head platform, the coating machine body includes a symmetrically arranged fixed platform, the two sides of the die head platform are respectively slidably connected to the fixed platform through a translation component, the translation component includes a slider, and the slider is rotatably connected to the die head platform through a rotating component, the rotating component encloses a rotating shaft, and a fixedly connected Hall sensor is arranged around the rotating shaft.

[0006] Preferably, the translation assembly also includes a slide rail and a first driving device, the slide rail and the first driving device are both arranged on the upper surface of the fixed platform, the lower surface of the slider is slidably connected to the slide rail, and the side wall of the slider is fixedly connected to the driving shaft of the first driving device.

[0007] Preferably, the device further comprises a controller, wherein the controller is electrically connected to the first driving device and the Hall sensor.

[0008] Preferably, the first driving device is a servo motor.

[0009] Preferably, one end of the rotating shaft is fixedly connected to the side wall of the die head platform, the other end of the rotating shaft passes through the slider via a bearing, and the passing end of the rotating shaft is fixedly connected to the slider via a buckle.

[0010] Preferably, a second driving device is provided on one side of the coater body, the second driving device is fixedly connected to the rotating shaft, and the second driving device and the die head platform are both electrically connected to the Hall sensor.

[0011] Preferably, a plurality of die connection holes are provided on the surface of the die platform.

[0012] Therefore, the utility model adopts the above-mentioned coating die head moving limiting device, and its technical effects are as follows:

[0013] (1) The utility model can drive the die head platform to move through the first driving device, thereby changing the gap between the die head and the backing roller, and finally adjusting the surface density. At the same time, it can cooperate with the data of the thickness gauge to perform linkage adjustment.

[0014] (2) The utility model receives the rotation amount of the die platform through the Hall sensor and calculates the displacement change of the die lip during rotation, so that the first driving device performs corresponding movement distance compensation, and finally makes the gap constant.

[0015] (3) The utility model drives the die head platform to move through the first driving device, and records the movement values ​​under various working conditions in the controller to meet the requirements of different moving positions in various working scenes such as coating, cleaning, slurry circulation, etc., avoiding the problem of multiple adjustments required for changing working scenes.

[0016] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of a coating die head moving limiting device of the utility model;

[0018] Figure 2 It is a side view of an embodiment of a coating die head movement limiting device of the utility model;

[0019] Figure 3 It is a top view of an embodiment of a coating die head movement limiting device of the utility model.

[0020] Reference numerals

[0021] 1. Fixed platform; 2. Die platform; 3. Slider; 4. Slide rail; 5. First drive device; 6. Rotating shaft; 7. Buckle; 8. Hall sensor; 9. Die connection hole. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0023] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] As shown in the figure, a coating die moving limit device includes a coating machine body and a die platform 2. The coating machine body includes a symmetrically arranged fixed platform 1. Both sides of the die platform 2 are slidably connected to the fixed platform 1 through translation components.

[0025] The translation assembly includes a slider 3, a slide rail 4 and a first drive device 5, wherein the first drive device 5 is a servo motor. The slide rail 4 and the first drive device 5 are both arranged on the upper surface of the fixed platform 1, the lower surface of the slider 3 is slidably connected to the slide rail 4, the side wall of the slider 3 is fixedly connected to the driving shaft of the first drive device 5, and the slider 3 is rotatably connected to the die head platform 2 through a rotating assembly.

[0026] The rotating assembly includes a rotating shaft 6, one end of which is fixedly connected to the side wall of the die platform 2, and the other end of which passes through the slider 3 via a bearing. The through end of the rotating shaft 6 is fixedly connected to the slider 3 via a buckle 7. A second driving device is provided on one side of the coating machine body, and the second driving device is fixedly connected to the rotating shaft 6. The second driving device can be a motor or a mechanical structure, which is not included in the scope of the present utility model. A fixedly connected Hall sensor 8 is provided around the rotating shaft 6, and the second driving device and the die platform 2 are both electrically connected to the Hall sensor 8.

[0027] The surface of the die platform 2 is provided with a plurality of die connection holes 9, which are used to place the die into the die platform 2 and fix it. The number, position and size of the die connection holes 9 are set one or more according to the die model and coating requirements.

[0028] The device also includes a controller (not marked in the figure), which is electrically connected to the first driving device 5 and the Hall sensor 8. The controller is a computer system that can adjust the die gap, avoiding the problem of needing to adjust the die gap again after reinstalling the die or adjusting the die angle.

[0029] The working principle of die gap adjustment: the gap between the die and the back roller is adjusted by driving the left and right first driving devices 5, the rotation amount of the die platform 2 is read by the Hall sensor 8 at the rotating shaft 6, and the movement amount of the die lip during rotation can be output by the computer system using the manually input total length of the die, and the movement amount data is transmitted to the left and right first driving devices 5 to compensate for the die movement.

[0030] In actual use, the following steps are included:

[0031] S1. Place the die on the die platform 2 and fix it, and measure the distance from the die lip to the center axis of the die platform 2.

[0032] S2. Adjust the die platform 2 to a horizontal position, slowly set the parameters of the computer system, adjust the advancement distance of the first drive device 5, and adjust the die platform 2 to a specified position (the specified position is determined by the gap between the die and the back roller, which is related to the surface density, and can be coordinated with the thickness gauge data and adjusted in conjunction with the computer system). At the same time, the computer system automatically records the movement parameters of the first drive device 5.

[0033] S3, adjust the angle of the die platform 2, transmit the angle change information back to the computer system through the Hall sensor 8, output the displacement change of the die lip due to the angle change, drive the left and right first drive devices 5 to correct the position, so that the gap is always maintained at the set value, and the coating process can be carried out.

[0034] S4. If the usage scenario needs to be changed, it is only necessary to adjust the pushing distance of the first driving device 5. After reaching the usage distance in the scenario, the computer system is used to record the data again, so that fast and accurate changes can be achieved in different application scenarios.

[0035] Therefore, the utility model adopts the above-mentioned coating die head moving limit device, and the die head has a memory effect and can automatically return to the coating position to meet the needs of different moving positions in various working scenarios such as coating, cleaning, slurry circulation, etc.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. A coating die head movement limiting device, characterized in that: The invention comprises a coater body and a die platform, wherein the coater body comprises a symmetrically arranged fixed platform, and the two sides of the die platform are slidingly connected to the fixed platform through translation components respectively, and the translation component comprises a slider, and the slider is rotationally connected to the die platform through a rotating component, and the rotating component encloses a rotating shaft, and a fixedly connected Hall sensor is arranged around the rotating shaft.

2. A coating die head movement limiting device according to claim 1, characterized in that: The translation assembly also includes a slide rail and a first drive device, both of which are arranged on the upper surface of the fixed platform, the lower surface of the slider is slidably connected to the slide rail, and the side wall of the slider is fixedly connected to the drive shaft of the first drive device.

3. A coating die head movement limiting device according to claim 2, characterized in that: It also includes a controller, which is electrically connected to the first driving device and the Hall sensor.

4. A coating die head movement limiting device according to claim 2, characterized in that: The first driving device is a servo motor.

5. The coating die head movement limiting device according to claim 1, characterized in that: One end of the rotating shaft is fixedly connected to the side wall of the die head platform, the other end of the rotating shaft passes through the slider via a bearing, and the passing end of the rotating shaft is fixedly connected to the slider via a buckle.

6. The coating die head movement limiting device according to claim 1, characterized in that: A second driving device is disposed on one side of the coating machine body, the second driving device is fixedly connected to the rotating shaft, and the second driving device and the die head platform are both electrically connected to the Hall sensor.

7. The coating die head movement limiting device according to claim 1, characterized in that: A plurality of die connection holes are arranged on the surface of the die platform.

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