Slit coating mechanism

Abstract

The utility model discloses a slit coating mechanism and relates to the technical field of coating. Comprising a control electric cabinet, a coating steel roller, a slit die head, a die head moving mechanism, a die head automatic gap adjusting mechanism, an unwinding mechanism, a roller clamping mechanism, a tension roller and a belt connecting platform, the unwinding mechanism is arranged below one side of the control electric cabinet, and a coiled material on the unwinding mechanism passes through the belt connecting platform and the tension roller to the position between the coating steel roller and the roller clamping mechanism at a time; a slit die head is arranged on one side of the coating steel roller and connected with a die head moving mechanism and a die head automatic gap adjusting mechanism. The device is reasonable in structural design, small in size, high in coating precision and high in cost performance, and is suitable for coating and flaking equipment of sodium batteries, lithium batteries and fuel batteries of pilot-scale production lines in laboratories.

Description

Technical Field

[0001] This utility model relates to the field of coating technology, specifically to a slit coating mechanism. Background Technology

[0002] In laboratory settings, coating is a crucial step in the research and development of energy devices such as sodium batteries, lithium batteries, and fuel cells. Traditional coating equipment is bulky and complex to operate, making it difficult to meet the miniaturization and high-precision requirements of laboratory settings. Therefore, developing a miniaturized, easy-to-operate, and highly precise slit coating mechanism is of great significance. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a slit coating mechanism with a reasonable structural design, small size, high coating precision, and high cost performance. It is suitable for coating and sheeting equipment for sodium batteries, lithium batteries, and fuel cells in laboratory pilot production lines.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a slit coating mechanism, comprising a control cabinet, a coating steel roller, a slit die head, a die head moving mechanism, a die head automatic gap adjustment mechanism, an unwinding mechanism, a clamping roller mechanism, a tension roller, and a receiving platform. The unwinding mechanism is provided below one side of the control cabinet. The roll material on the unwinding mechanism passes through the receiving platform and the tension roller in one pass to the coating steel roller and the clamping roller mechanism. A slit die head is provided on one side of the coating steel roller. The slit die head is connected to the die head moving mechanism and the die head automatic gap adjustment mechanism.

[0005] Preferably, the unwinding mechanism is a servo unwinding mechanism.

[0006] Preferably, a tension sensor is provided at the tension roller.

[0007] Preferably, the slit die is also connected to a metering pump.

[0008] Preferably, a correction device is provided between the tension roller and the tape-connecting platform, and between the tension roller and the coating steel roller.

[0009] Preferably, the correction device uses a photoelectric sensor.

[0010] The beneficial effects of this utility model are: The structure of this utility model is reasonably designed, suitable for laboratory environments, saves space, has a high degree of automation, and is easy to operate. High-precision components and a control system ensure uniform and accurate coating. It is suitable for coating and sheeting of various energy devices such as sodium batteries, lithium batteries, and fuel cells. Attached Figure Description

[0011] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments;

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a side view of the present invention;

[0014] Figure 3 for Figure 2 A sectional view along the AA direction. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] Reference Figure 1-3 The specific embodiment adopts the following technical solution: a slit coating mechanism, including a control cabinet 1, a coating steel roller 2, a slit die head 3, a die head moving mechanism 4, a die head automatic gap adjustment mechanism 5, an unwinding mechanism 6, a clamping roller mechanism 7, a tension roller 8, and a receiving platform 9. The unwinding mechanism 6 is provided below one side of the control cabinet 1. The roll material on the unwinding mechanism 6 passes through the receiving platform 9 and the tension roller 8 to the coating steel roller 2 and the clamping roller mechanism 7 in one pass. The slit die head 3 is provided on one side of the coating steel roller 2. The slit die head 3 is connected to the die head moving mechanism 4 and the die head automatic gap adjustment mechanism 5.

[0017] It is worth noting that the unwinding mechanism 6 is a servo unwinding mechanism, which controls the unwinding speed through a servo motor to ensure the stability of the coating process.

[0018] It is worth noting that a tension sensor is installed at tension roller 8. The tension sensor detects the tension of the roll material and automatically adjusts the position of the tension roller to ensure uniform coating.

[0019] It is worth noting that the slit die 3 is also connected to a metering pump, which uses a high-precision metering pump to ensure that the slurry is supplied to the slit die at a constant pressure.

[0020] It is worth noting that a correction device 10 is provided between the tension roller 8 and the tape receiving platform 9, and between the tension roller 8 and the coating steel roller 2.

[0021] It is worth noting that the aforementioned correction device 10 uses a photoelectric sensor to detect the position of the roll material and automatically adjust the position of the correction roller to ensure the accurate positioning of the roll material during the coating process.

[0022] In addition, the tape splicing platform adopts an automatic tape splicing device to ensure the continuity of the coating process.

[0023] This specific embodiment of the high-precision coating steel roller employs high-precision machining processes to ensure a smooth surface and uniform coating. A high-precision metering pump ensures constant pressure supply of the slurry to the slit die. The coating thickness and uniformity are adjusted by controlling the size of the slit shim. A PLC control system is also used to monitor and adjust the pump speed, chamber pressure, and slit shim size in real time to ensure uniform slurry coating on the substrate.

[0024] This specific embodiment is a miniaturized slit coating mechanism, suitable for coating and sheet-making equipment for laboratory sodium batteries, lithium batteries, and fuel cells. The roll material is servo-unwound after being corrected, and enters a high-precision coating steel roller after passing through the tension roller of the belt receiving platform. The slurry is supplied to the precision slit die head at constant pressure by a precision metering pump. The slurry is evenly coated on the substrate by controlling the pump speed, cavity pressure, and slit spacer size.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A slit coating mechanism, characterized in that, The system includes a control cabinet (1), a coating steel roller (2), a slit die head (3), a die head moving mechanism (4), a die head automatic gap adjustment mechanism (5), an unwinding mechanism (6), a clamping roller mechanism (7), a tension roller (8), and a receiving platform (9). The unwinding mechanism (6) is located below one side of the control cabinet (1). The roll material on the unwinding mechanism (6) passes through the receiving platform (9), the tension roller (8), and then between the coating steel roller (2) and the clamping roller mechanism (7). The slit die head (3) is located on one side of the coating steel roller (2). The slit die head (3) is connected to the die head moving mechanism (4) and the die head automatic gap adjustment mechanism (5).

2. The slit coating mechanism according to claim 1, characterized in that, The unwinding mechanism (6) is a servo unwinding mechanism.

3. The slit coating mechanism according to claim 1, characterized in that, A tension sensor is provided at the tension roller (8).

4. The slit coating mechanism according to claim 1, characterized in that, The slit mold (3) is also connected to a metering pump.

5. A slit coating mechanism according to claim 1, characterized in that, Correction devices (10) are provided between the tension roller (8) and the tape receiving platform (9), and between the tension roller (8) and the coating steel roller (2).

6. A slit coating mechanism according to claim 5, characterized in that, The aforementioned correction device (10) employs a photoelectric sensor.

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