Coating die head capable of being adjusted efficiently

Abstract

The utility model discloses a coating die head capable of being adjusted efficiently, which comprises an upper die body, a lower die body is fixedly connected below the upper die body, a coating slit is defined between the upper die body and the lower die body, a gasket is arranged in the coating slit, a plurality of support frames distributed in an array are connected above the upper die body in a threaded manner, and the upper die body is connected with the lower die body in a threaded manner. A linear motor is fixedly arranged at one end of each supporting frame in a penetrating mode, the output end of each linear motor is connected with a coupler, the other end of each coupler is connected with an adjusting mechanism, a T-shaped adjusting block is arranged at the lower end of each adjusting mechanism, and a buffer piece is connected to the bottom face of each T-shaped adjusting block in a glued mode. A deformation device is arranged below each buffer sheet, the adjusting mechanism is sleeved with a buffer sealing mechanism, the buffer sealing mechanism comprises a polytetrafluoroethylene sealing ring, and the coating device has the advantages of being high in practicability and high in coating efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of coating equipment, in particular to a coating die head with high efficiency adjustment. Background Art

[0002] Slot-slot coating technology is an advanced, pre-metered coating technique. During the process, a constant flow of coating slurry enters the die cavity through the extrusion head feed port, creating a stable pressure that allows the coating slurry to be evenly sprayed out of the die slit outlet, coating the substrate. The coating is then dried in an oven, resulting in a highly precise coating. Slot-slot coating technology is widely used in a variety of fields, including pharmaceuticals, electronics, printing, medical treatment, and chemicals, offering numerous advantages, including high coating speed, material savings, and high precision.

[0003] In the existing coating die coating work, the T-block adjustment method of the adjustment mechanism will produce a sharp step when a single T-block is adjusted (reference Figure 5 ), lines are easily formed on the product during coating. At the same time, there is a gap between the T-block and the die body, and the coating slurry will seep through the gap, causing the coating slurry to stick, thereby affecting the working efficiency of the coating nozzle. Therefore, a high-efficiency adjustable coating die with strong practicality and high coating efficiency is designed to solve the low coating efficiency problem of existing coating dies. Utility Model Content

[0004] The purpose of the utility model is to provide a coating die head with high efficiency adjustment to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a high-efficiency adjustable coating die head, comprising an upper mold body, a lower mold body fixedly connected to the lower part of the upper mold body, a coating slit defined between the upper mold body and the lower mold body, a gasket provided in the coating slit, a plurality of support frames distributed in an array are threadedly connected to the upper part of the upper mold body, a linear motor is fixedly passed through one end of each of the support frames, a coupling is connected to the output end of each of the linear motors, an adjustment mechanism is connected to the other end of each of the couplings, a T-shaped adjustment block is provided at the lower end of each of the adjustment mechanisms, a buffer sheet is glued to the bottom surface of the T-shaped adjustment block, and a deformation device is provided below the buffer sheet;

[0006] A buffer sealing mechanism is sleeved on the adjustment mechanism, and the buffer sealing mechanism includes a polytetrafluoroethylene sealing ring. A styrene-butadiene rubber buffer pad is tightly fitted below the polytetrafluoroethylene sealing ring, and a nitrile-butadiene rubber sealing ring is tightly fitted below the styrene-butadiene rubber buffer pad.

[0007] According to the above technical solution, the deformation device includes a deformation plate on the top, and mounting plates are provided at both ends of the deformation plate. The deformation plate is a T-shaped structure with grooves below both ends, and the mounting plate is an L-shaped structure with a groove above one end. The grooves of the mounting plates on both sides are respectively adapted to the grooves at both ends of the deformation plate and are installed in a buckled manner, and the deformation device is embedded and installed inside the lower part of the upper mold body, and the upper surface of the mounting plate is glued to the upper mold body.

[0008] According to the above technical solution, a fixing part is also sleeved on the adjustment mechanism. The shape of the fixing part is a combination of two cylinders with a larger upper part and a smaller lower part. The upper end of the fixing part is threadedly connected to the upper mold body. The fixing part is located above the buffer sealing mechanism.

[0009] According to the above technical solution, a number of accommodating grooves are distributed in an array on the upper mold body, and the number of the accommodating grooves is equal to the number of the supporting frames. The accommodating grooves pass through the upper mold body from top to bottom, and the lower end of the fixing part, the buffer sealing mechanism, the adjustment mechanism, the T-shaped adjustment block and the deformation device are all arranged in the accommodating groove, and the internal shape of the accommodating groove is adapted to and fits tightly with the shapes of the internal components, wherein a certain gap is left between the outer side of the styrene-butadiene rubber buffer pad and the inner wall of the accommodating groove.

[0010] According to the above technical solution, a coating nozzle is provided at the front end of the coating slit.

[0011] According to the above technical solution, a feed port is provided on a side of the lower mold body away from the coating nozzle, a cavity is provided on the upper surface of the coating nozzle, and a feed channel of the feed port is connected to the cavity.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0013] (1) The linear motor is provided as a power source, and the coupling drives the adjustment mechanism and the T-shaped adjustment block to move up and down to adjust the discharge amount of the coating slit. When the T-shaped adjustment block moves downward for adjustment, the buffer sheet at the lower part squeezes the deformation sheet below. The buffer sheet and the middle part of the deformation sheet are pushed downward and elastically deformed to fit tightly. When the coating slit adjustment work is completed, the problem of uneven coating caused by sharp steps generated when the T-shaped adjustment block is adjusted is effectively avoided, thereby requiring additional adjustment to reduce work efficiency.

[0014] (2) By providing the buffer sealing mechanism and the deformation device, a double-layer sealing mechanism is adopted to ensure good sealing performance, and effectively prevent the problem of coating slurry penetration while cooperating with the adjustment mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the overall side sectional structure of the utility model;

[0017] Figure 2 This is an enlarged schematic diagram of area A of the present utility model;

[0018] Figure 3 This is a schematic diagram of the T-block adjustment structure of the utility model;

[0019] Figure 4 This is the main view of the overall structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the utility model of adjusting a single T block to produce a sharp-angle step;

[0021] In the figure: 1. Upper mold body; 2. Gasket; 3. Lower mold body; 31. Coating slit; 4. Support frame; 5. Linear motor; 6. Coupling; 7. Adjustment mechanism; 8. T-shaped adjustment block; 81. Buffer plate; 9. Deformation device; 91. Deformation plate; 92. Mounting plate; 10. Receiving groove; 11. Fixing part; 12. Buffer sealing mechanism; 121. PTFE sealing ring; 122. Styrene-butadiene rubber buffer pad; 123. Nitrile-butadiene rubber sealing ring; 13. Coating nozzle; 14. Feed port; 15. Cavity. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The utility model provides a technical solution: a coating die head with high efficiency adjustment, such as Figure 1As shown, it includes an upper mold body 1, a lower mold body 3 is fixedly connected to the lower part of the upper mold body 1, a coating slit 31 is formed between the upper mold body 1 and the lower mold body 3, and a gasket 2 is provided in the coating slit 31. The gasket 2 has the function of ensuring the coating quality and improving production efficiency during the coating process. A plurality of support frames 4 distributed in an array are threadedly connected to the upper part of the upper mold body 1, and a linear motor 5 is fixedly installed at one end of each support frame 4. The output end of each linear motor 5 is connected to a coupling 6, and the other end of each coupling 6 is connected to an adjustment mechanism 7. The lower end of each adjustment mechanism 7 is provided with a T-shaped adjustment block 8. The linear motor 5 serves as a power source, and drives the adjustment mechanism 7 and the T-shaped adjustment block 8 up and down through the coupling 6 to adjust the discharge amount of the coating slit 31.

[0024] like Figure 1 As shown, a buffer sealing mechanism 12 is sleeved on the adjustment mechanism 7. The buffer sealing mechanism 12 includes a polytetrafluoroethylene sealing ring 121. A styrene-butadiene rubber buffer pad 122 is tightly fitted below the polytetrafluoroethylene sealing ring 121. A nitrile rubber sealing ring 123 is tightly fitted below the styrene-butadiene rubber buffer pad 122. The nitrile rubber sealing ring 123 has excellent properties such as chemical resistance, high temperature resistance, and compression resistance. It can well seal the adjustment mechanism 7 and prevent the coating slurry from penetrating and affecting the performance of the device; the polytetrafluoroethylene sealing ring 121 has excellent properties such as wear resistance, high temperature resistance, aging resistance, and good sealing performance. It is arranged above the buffer sealing mechanism 12 as an auxiliary seal to enhance the overall sealing effect and provide a double-layer guarantee for the sealing work. The styrene-butadiene rubber buffer pad 122 has high elasticity and can expand and contract as the adjustment mechanism 7 is adjusted up and down, thereby playing a buffering role without affecting the overall sealing effect of the buffer sealing mechanism 12.

[0025] like Figure 2 As shown, a buffer sheet 81 is glued to the bottom surface of the T-shaped adjustment block 8, and a deformation device 9 is provided below the buffer sheet 81. The deformation device 9 includes an upper deformation sheet 91, and mounting sheets 92 are provided at both ends of the deformation sheet 91. The deformation sheet 91 is a T-shaped structure with grooves provided below both ends, and the mounting sheet 92 is an L-shaped structure with a groove provided above one end. The grooves of the mounting sheets 92 on both sides are respectively adapted to the grooves at both ends of the deformation sheet 91 and are installed in an interlocking manner. The deformation device 9 is embedded and installed inside the lower part of the upper mold body 1, and the upper surface of the mounting sheet 92 is glued to the upper mold body 1. Both the buffer sheet 81 and the deformation sheet 91 can be made of wear-resistant, high-temperature resistant rubber material that can achieve elastic deformation. At the same time, the deformation device 9 can also play a sealing role to preliminarily prevent the coating slurry from penetrating. As shown Figure 3As shown, when the T-shaped adjustment block 8 moves downward for adjustment, the lower buffer sheet 81 will squeeze the deformation sheet 91 below, and the buffer sheet 81 and the middle part of the deformation sheet 91 will be pushed downward and elastically deformed to fit tightly together. When the adjustment of the coating slit 31 is completed, it can effectively avoid the problem of uneven coating caused by sharp steps when the T-shaped adjustment block 8 is adjusted, thereby requiring additional adjustment to reduce work efficiency.

[0026] like Figure 1 As shown, a fixing part 11 is also sleeved on the adjustment mechanism 7. The fixing part 11 is shaped like two cylinders that are larger on the top and smaller on the bottom. The upper end of the fixing part 11 is threadedly connected to the upper mold body 1. The fixing part 11 is located above the buffer sealing mechanism 12, so that the fixing part 11 limits the vertical position of the buffer sealing mechanism 12.

[0027] like Figure 1 As shown, a plurality of receiving grooves 10 are arranged in an array on the upper mold body 1. The number of receiving grooves 10 is equal to the number of support frames 4. The receiving grooves 10 pass through the upper mold body 1 from top to bottom. The receiving grooves 10 are connected to the coating slit 31. The lower end of the fixing member 11, the buffer sealing mechanism 12, the adjustment mechanism 7, the T-shaped adjustment block 8 and the deformation device 9 are all arranged in the receiving groove 10. The internal shape of the receiving groove 10 is adapted to and closely fits the shape of each internal component, ensuring the position stability of the internal parts and closely cooperating with the sealing component to obtain a good sealing effect. Among them, a certain gap is left between the outer side of the styrene-butadiene rubber buffer pad 122 and the inner wall of the receiving groove 10, thereby leaving a certain deformation space for the styrene-butadiene rubber buffer pad 122 to undergo elastic deformation.

[0028] like Figure 1 As shown, a coating nozzle 13 is provided at the front end of the coating slit 31. The coating nozzle 13 is used to atomize the coating slurry and evenly spray it onto the surface of the substrate to be sprayed.

[0029] like Figure 1 As shown, a feed port 14 is provided on the side of the lower mold body 3 away from the coating nozzle 13. A cavity 15 is provided on the upper surface of the coating nozzle 13. A feed channel of the feed port 14 is connected to the cavity 15. The coating slurry flows from the feed port 14 and flows through the feed channel into the cavity 15 inside the lower mold body 3 to prepare the raw material for the spraying operation.

[0030] Working principle: The coating slurry flows from the feed port 14 into the cavity 15 inside the lower mold body 3 along the feed channel, and is transported to the coating nozzle 13 through the coating slit 31. The coating nozzle 13 atomizes the coating slurry and evenly sprays it onto the surface of the substrate to be sprayed. At the same time, the buffer sealing mechanism 12 and the deformation device 9 act as a seal to prevent the coating slurry from penetrating. During the coating work, the discharge amount of the coating slit 31 needs to be adjusted to ensure the coating quality and coating efficiency of the substrate. The linear motor 5 is used as the power source. The linear motor 5 drives the adjustment mechanism 7 and the T-shaped adjustment block 8 up and down through the coupling 6. When the T-shaped adjustment block 8 moves downward for adjustment, the lower buffer plate 81 squeezes the deformation plate 91 below. The buffer plate 81 and the middle part of the deformation plate 91 are pushed downward and elastically deformed to fit tightly. When the adjustment work of the coating slit 31 is completed, the sharp steps generated when the T-shaped adjustment block 8 is adjusted are effectively avoided, causing uneven coating, thereby requiring additional adjustment and reducing work efficiency.

[0031] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0032] Finally, it should be noted that the above description is merely 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 will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A coating die head with high efficiency adjustment, comprising an upper die body (1), characterized in that: The lower mold body (3) is fixedly connected to the lower part of the upper mold body (1), a coating slit (31) is formed between the upper mold body (1) and the lower mold body (3), a gasket (2) is provided in the coating slit (31), a plurality of support frames (4) distributed in an array are threadedly connected to the upper part of the upper mold body (1), a linear motor (5) is fixedly passed through one end of each support frame (4), the output end of each linear motor (5) is connected to a coupling (6), the other end of each coupling (6) is connected to an adjustment mechanism (7), a T-shaped adjustment block (8) is provided at the lower end of each adjustment mechanism (7), a buffer sheet (81) is glued to the bottom surface of each T-shaped adjustment block (8), and a deformation device (9) is provided below each buffer sheet (81); The regulating mechanism (7) is sleeved with a buffer sealing mechanism (12), the buffer sealing mechanism (12) comprising a polytetrafluoroethylene sealing ring (121), a styrene-butadiene rubber buffer pad (122) being tightly fitted below the polytetrafluoroethylene sealing ring (121), and a nitrile-butadiene rubber sealing ring (123) being tightly fitted below the styrene-butadiene rubber buffer pad (122).

2. A high-efficiency adjustable coating die according to claim 1, characterized in that: The deformation device (9) includes an upper deformation piece (91), and mounting pieces (92) are provided at both ends of the deformation piece (91). The deformation piece (91) is a T-shaped structure with grooves provided below both ends, and the mounting piece (92) is an L-shaped structure with a groove provided above one end. The grooves of the mounting pieces (92) on both sides are respectively adapted to the grooves at both ends of the deformation piece (91) and are installed in a buckled manner. The deformation device (9) is embedded and installed inside the lower part of the upper mold body (1), and the upper surface of the mounting piece (92) is glued to the upper mold body (1).

3. A coating die head with high efficiency adjustment according to claim 2, characterized in that: The adjusting mechanism (7) is also sleeved with a fixing member (11), which is in the shape of two cylinders, one larger on the top and one smaller on the bottom. The upper end of the fixing member (11) is threadedly connected to the upper mold body (1), and the fixing member (11) is located above the buffer sealing mechanism (12).

4. A coating die head with high efficiency adjustment according to claim 3, characterized in that: A plurality of receiving grooves (10) are arranged in an array on the upper mold body (1), and the number of the receiving grooves (10) is equal to the number of the support frames (4). The receiving grooves (10) pass through the upper mold body (1) from top to bottom, and the lower end of the fixing member (11), the buffer sealing mechanism (12), the adjustment mechanism (7), the T-shaped adjustment block (8) and the deformation device (9) are all arranged in the receiving groove (10), and the internal shape of the receiving groove (10) is adapted to and closely fits the shape of the internal components, wherein a certain gap is left between the outer side of the styrene-butadiene rubber buffer pad (122) and the inner wall of the receiving groove (10).

5. The high-efficiency adjustable coating die according to claim 4, characterized in that: A coating nozzle (13) is provided at the front end of the coating slit (31).

6. The high-efficiency adjustable coating die according to claim 5, characterized in that: A feed port (14) is provided on a side of the lower mold body (3) away from the coating nozzle (13), a cavity (15) is provided on the upper surface of the coating nozzle (13), and a feed channel of the feed port (14) is connected to the cavity (15).

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