Coating width adjusting device of transfer coating machine

Abstract

The utility model relates to a coating width adjusting device of a transfer coating machine, which comprises two cutting dies and a stock supporting plate, and further comprises an adjusting driving piece, the two cutting dies are both installed on the material bearing plate in a sliding mode, and the adjusting driving piece is used for driving the two cutting dies to move so as to adjust the distance between the two cutting dies. The adjusting driving piece is arranged to drive the two cutting dies to move, the installation mode of the cutting dies is changed, locking screw fixing is omitted, the distance between the two cutting dies can be accurately adjusted, and therefore the coating width of the transfer coating machine can be accurately adjusted, the problems of material leakage and abnormal edge coating surface density caused by deviation when the cutting dies are disassembled are solved, and the coating quality is improved. The slurry rejection rate and the working hour loss of operators are reduced, and the cell manufacturing cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of coating machine technology, and in particular to a coating width adjustment device for a transfer coating machine. Background Technology

[0002] Lithium-ion batteries are widely used in mobile phones, computers, base stations, automobiles, and other fields due to their advantages such as long battery life, long service life, low self-discharge rate, and environmental friendliness. With continuous improvements in lithium-ion battery technology and processes, their battery life and safety performance are constantly improving. The coating of the slurry is a crucial front-end process in lithium-ion battery manufacturing, significantly impacting the production quality. Using substandard electrode sheets in production will reduce the battery's electrical and safety performance, and in severe cases, may lead to fires, explosions, and other safety hazards. The coating dimensions, as a critical control parameter in the coating process, must be strictly controlled and measured.

[0003] Currently, in transfer coating machines, the coating width of the electrode sheets is mainly controlled by two side dies. The main structure includes a support plate and two side dies, which are fixed to the support plate with screws. Depending on the coating width requirements of different electrode models, the distance between the two dies needs to be manually adjusted before the slurry is applied. In the current operation, after adjusting the die spacing according to the coating width requirements, slurry is applied for a trial coating to confirm whether the electrode sheet coating width is acceptable. If the coating width cannot be achieved in one pass, the die locking screws need to be loosened, and the dies need to be tapped or manually moved. This is inefficient, requires disassembling the dies and support plate for repositioning and reinstallation, and during the re-tightening of the screws after movement, the dies are prone to shifting, causing the coating width to shift again, resulting in material leakage and abnormal edge coating density. This process is inaccurate, complex to debug, and results in a large amount of scrap. Furthermore, battery cell models are diverse, and different cells have different electrode sizes. Each coating process requires repeated adjustments based on this process. The existing structure increases the slurry scrap rate, the time spent by operators, and the cost of battery cell manufacturing. In summary, the coating width of existing transfer coating machines is difficult to adjust, the adjustment process is cumbersome, and the adjustment size is difficult to control, which urgently needs to be solved. Utility Model Content

[0004] Based on this, it is necessary to address the technical problems of existing transfer coating machines having difficulty in adjusting the coating width, complicated adjustment process, and difficulty in controlling the adjustment size. This utility model proposes a film width adjustment device for transfer coating machines.

[0005] This utility model proposes a coating width adjustment device for a transfer coating machine, which includes two die-cutting molds and a material support plate, and also includes an adjustment drive component; both die-cutting molds are slidably mounted on the material support plate, and the adjustment drive component is used to drive the two die-cutting molds to move in order to adjust the distance between the two die-cutting molds.

[0006] This invention changes the installation method of the two die-cutting molds by setting an adjustment drive component to move the two die-cutting molds, eliminating the need for locking screws. It can precisely adjust the distance between the two die-cutting molds, thereby accurately adjusting the coating width of the transfer coating machine. This avoids material leakage and abnormal edge coating density caused by displacement when the die-cutting molds are disassembled, reduces the slurry scrap rate and the time loss of operators, and reduces the cost of battery cell manufacturing.

[0007] As a further improvement to the above-mentioned solution of this utility model, the coating width adjustment device of the transfer coating machine has two sliders, both of which are slidably mounted on the material support plate, and two dies are respectively connected to the two sliders.

[0008] As a further improvement of the above-mentioned solution of this utility model, the adjustment drive component includes two lead screws and two servo motors; the two lead screws are arranged opposite to each other, and the two lead screws are respectively threadedly connected to two die-cutting molds, and the ends of the two lead screws that are far apart from each other are respectively connected to the output ends of the two servo motors for transmission.

[0009] As a further improvement of the above-mentioned solution of this utility model, the adjustment drive component includes two hand cranks and two lead screws; the two lead screws are arranged opposite to each other, and the two lead screws are respectively threadedly connected to two die-cutting molds, with one end of the two lead screws being respectively connected to the two hand cranks.

[0010] As a further improvement of the above-mentioned solution of this utility model, a T-shaped groove is provided on the material support plate along its length direction, and both sliders are provided with T-shaped blocks that are slidably connected to the T-shaped groove.

[0011] As a further improvement to the above-mentioned solution of this utility model, both handwheels are provided with circumferentially arranged scales.

[0012] As a further improvement of the above-mentioned solution of this utility model, the coating width adjustment device of the conveying and transfer coating machine also includes a coating roller, which is located on one side of the material support plate and arranged parallel to the coating roller, and both dies are rolled and attached to the coating roller.

[0013] As a further improvement to the above-mentioned solution of this utility model, the coating width adjustment device of the transfer coating machine further includes a CCD detection component, which is used to acquire images of the coating roller and the two dies and detect the distance between the two dies.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This utility model changes the installation method of the two die-cutting molds by setting an adjustment drive component to drive the two die-cutting molds to move, eliminating the need for locking screws. It can accurately adjust the distance between the two die-cutting molds, thereby accurately adjusting the coating width of the transfer coating machine. This avoids material leakage and abnormal edge coating density caused by displacement when the die-cutting molds are disassembled, reduces the slurry scrap rate and the time loss of operators, and reduces the cost of battery cell manufacturing.

[0016] 2. This utility model can be used with a CCD detection component to monitor the coating width in real time, and the coating width can be accurately adjusted according to the CCD display results. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a coating width adjustment device for a transfer coating machine according to an embodiment of the present invention;

[0018] Figure 2 This is a top view of a coating width adjustment device for a transfer coating machine according to an embodiment of the present invention.

[0019] Reference numerals in the attached diagram: 1. Coating roller; 2. Die; 3. Material support plate; 4. Slider; 5. Lead screw; 6. Servo motor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This embodiment addresses the technical problems of existing transfer coating machines having difficulty adjusting the coating width, complicated adjustment process, and difficulty in controlling the adjustment size. It provides a film width adjustment device for transfer coating machines, which can accurately adjust the distance between the two die 2, thereby accurately adjusting the coating width of the transfer coating machine, reducing the slurry scrap rate and the time loss of operators, and reducing the cost of battery cell manufacturing.

[0022] Reference Figure 1 , Figure 2 The coating width adjustment device of the transfer coating machine in this embodiment includes a coating roller 1, two die 2s and an adjustment drive component, and may also include a material support plate 3 and two sliders 4.

[0023] The coating roller 1 is one of the key pieces of equipment in the electrode coating process. It is typically made of metal or a special alloy, with a precision-machined surface to meet specific smoothness requirements. Its design ensures that the slurry is uniformly transferred to the electrode substrate during coating, while also withstanding prolonged high-speed operation. During operation, the coating roller 1, through contact with the support plate, carries a certain amount of slurry and transfers it to the electrode substrate. In this process, parameters such as the rotational speed, pressure, and distance from the substrate of the coating roller 1 need to be precisely controlled to ensure the uniformity and consistency of the coating.

[0024] The two die-cutting dies 2 are arranged opposite each other, and the two die-cutting dies 2 roll and adhere to the coating roller 1, so as not to hinder the rotation of the coating roller 1.

[0025] The material support plate 3 is used to receive and temporarily store the slurry. The material support plate 3 is set on one side of the coating roller 1 and arranged parallel to the coating roller 1. A T-shaped groove is provided on the side of the material support plate 3 away from the coating roller 1, which is arranged along its length.

[0026] Both sliders 4 are provided with T-shaped blocks that slide and connect with the T-shaped grooves, and the two sliders 4 are respectively connected to the two die dies 2.

[0027] The adjusting drive is used to move the two die-cutting molds 2 to adjust the distance between them. In this embodiment, the adjusting drive includes two lead screws 5 and two servo motors 6. The two lead screws 5 are arranged opposite each other and are threadedly connected to the two die-cutting molds 2 respectively. The ends of the two lead screws 5 that are away from each other are respectively connected to the output ends of the two servo motors 6. When the two servo motors 6 rotate synchronously, they can drive the two lead screws 5 to rotate synchronously, thereby driving the two die-cutting molds 2 to move synchronously closer to or further apart from each other. By controlling the number of rotations and direction of the two servo motors 6, the coating width can be precisely controlled and adjusted.

[0028] With the above structural setup, when the coating width adjustment device of the transfer coating machine in this embodiment is in use, the die 2 is fixed on the slider 4 by screws, and the slider 4 is embedded in the material support plate 3; if it is necessary to adjust the film width and position during the coating process or debugging process, it is only necessary to control the number of rotations and direction of the two servo motors 6 to control the adjustment of the film width.

[0029] It should be noted that in other embodiments, the adjustment drive component can also have other structures. For example, the adjustment drive component includes two hand cranks and two lead screws 5. The two lead screws 5 are arranged opposite each other and are threadedly connected to the two die-cutting molds 2 respectively. The ends of the two lead screws 5 that are away from each other are connected to the two hand cranks respectively. Both hand cranks are provided with circumferentially arranged scales. By rotating the two hand cranks, the rotation amplitude and rotation direction of the hand cranks are strictly controlled according to the scales of the hand cranks, thereby precisely controlling the distance the two die-cutting molds 2 move, so as to precisely control and adjust the coating width.

[0030] In addition, the adjustment drive can also be other structures, such as a servo motor and a lead screw. The lead screw has two threaded sections with opposite thread directions. The two threaded sections are respectively threaded and connected to two die dies 2. In this way, when the servo motor rotates, the lead screw rotates to drive the two die dies 2 to move closer or further apart. By controlling the number of rotations and direction of the servo motor, the coating width can be precisely controlled and adjusted.

[0031] The coating width adjustment device of the transfer coating machine in this embodiment can also be equipped with a CCD detection component (not shown in the figure). The CCD detection component is used to acquire images of the coating roller 1 and the two die 2 and detect the distance between the two die 2. In conjunction with the CCD detection, the coating width can be monitored in real time and accurately adjusted according to the CCD display results. Here, the CCD detection component adopts existing technology, and its detection principle is known, so it will not be described in detail here.

[0032] It should be noted that when a component is said to be "installed on" another component, it can be directly on the other component or it may be in a component that is centered on it. When a component is said to be "set on" another component, it can be directly set on the other component or it may also be in a component that is centered on it. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or it may also be in a component that is centered on it.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A coating width adjustment device for a transfer coating machine, comprising two die-cutting molds (2) and a material receiving plate (3), characterized in that, It also includes an adjustment drive, two sliders (4) and a CCD detection assembly. The material support plate (3) is provided with a T-shaped groove arranged along its length. Both sliders (4) are provided with T-shaped blocks that are slidably connected to the T-shaped groove. The two die-cutting molds (2) are respectively connected to the two sliders (4). The adjustment drive is used to drive the two die-cutting molds (2) to move in order to adjust the distance between the two die-cutting molds (2). The adjustment drive includes two lead screws (5) and two servo motors (6); the two lead screws (5) are arranged opposite to each other, and the two lead screws (5) are respectively threadedly connected to the two die-cutting molds (2), and the two lead screws (5) are respectively connected to the output end of the two servo motors (6) at one end away from each other; Alternatively, the adjustment drive includes two hand cranks and two lead screws (5); the two lead screws (5) are arranged opposite to each other, and the two lead screws (5) are respectively threadedly connected to the two die-cutting molds (2), and the two lead screws (5) are respectively connected to the two hand cranks at one end away from each other; The CCD detection component is used to acquire images of the coating roller (1) and the two die-cutting molds (2) and to detect the distance between the two die-cutting molds (2).

2. The coating width adjustment device for a transfer coating machine according to claim 1, characterized in that, Both handwheels are provided with circumferentially arranged scales.

3. The coating width adjustment device for a transfer coating machine according to claim 1, characterized in that, The coating width adjustment device of the conveyor transfer coating machine also includes a coating roller (1), which is located on one side of the material support plate (3) and arranged parallel to the coating roller (1). Both dies (2) roll and fit against the coating roller (1).

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