Negative pressure ultrathin coating device

Abstract

The utility model relates to a negative pressure ultrathin coating device which comprises a coating roller and a coating lip, the coating lip is fixed at the side edge position of the coating roller through a movable plate, a negative pressure device is arranged on the lower side of the movable plate and is provided with a fixed plate, the fixed plate is provided with an adjusting groove, and the adjusting groove is provided with an adjusting groove. The negative pressure device is fixed to the movable plate through a fastener at the position of the adjusting groove, the negative pressure device and the coating lip are fixed together in a detachable connection mode, in the using process, the position of the negative pressure device can be adjusted according to actual requirements, and therefore the attaching relation between the negative pressure device and the coating roller is better, and the coating effect is better. And the negative pressure effect in the coating process is improved, so that the coating quality is improved in the ultrathin coating process.

Description

Technical Field

[0001] The utility model relates to the technical field of coating machine accessories, in particular to a negative pressure ultra-thin coating device. Background Art

[0002] The coating process is a process based on the study of fluid properties to coat one or more layers of liquid on a substrate. The coating machine is one of the commonly used equipment in the coating process. The coating machine coats the rolled substrate with a layer of glue, paint or ink with special functions, and then rewinds it after drying.

[0003] In the prior art, in order to ensure the coating effect, a negative pressure device is set on the outside of the coating to form a negative pressure environment. However, the negative pressure device is generally directly fixed to the coating lip. After installation, it can only move with the coating lip. Therefore, during use, if the negative pressure device does not work well, it cannot be effectively adjusted, which affects the coating quality. Utility Model Content

[0004] Based on this, it is necessary to provide a negative pressure ultra-thin coating device to address the problems in the prior art.

[0005] A negative pressure ultra-thin coating device, characterized in that it includes a coating roller and a coating lip, wherein the coating lip is fixed to the side position of the coating roller through a movable plate, a negative pressure device is provided on the lower side of the movable plate, the negative pressure device is provided with a fixed plate, the fixed plate is provided with an adjustment groove, and the negative pressure device is fixed to the movable plate at the adjustment groove position by a fastener.

[0006] In one embodiment, the negative pressure device includes a first chamber and a second chamber that are connected, the first chamber is provided with an arc-shaped opening adapted to the coating roller, and the second chamber is connected to a negative pressure machine through a pipeline.

[0007] In one embodiment, a bending baffle is provided between the first chamber and the second chamber, and the bending baffle includes a first baffle and a second baffle. The first baffle and the second baffle are staggered and a connecting channel is formed between the first baffle and the second baffle for connecting the first chamber and the second chamber.

[0008] In one embodiment, the first baffle and the second baffle are V-shaped baffles, which are fixed to the side walls corresponding to the connecting channel, the opening of the first baffle faces the coating roller, and the opening of the second baffle faces the second chamber, and the second baffle forms a connecting gap with the inner wall of the second chamber.

[0009] In one of the embodiments, the upper side of the first baffle is close to the coating roller and is used to form an upper side plate of the first chamber.

[0010] In one embodiment, the first chamber is distributed along the axis direction of the coating roller, and the second chamber is located on the left or right side of the first chamber.

[0011] In one of the embodiments, two inclined plates are provided on both sides of the bottom of the first chamber, the sides of the two inclined plates are higher than the middle position, and a hole for collecting materials is provided in the middle of the inclined plates.

[0012] In one of the embodiments, a negative pressure hole is provided at the bottom of the second chamber, and the second chamber is connected to the negative pressure machine at the position of the negative pressure hole.

[0013] In one embodiment, there are two negative pressure holes, which are evenly distributed at the bottom of the second chamber. A negative pressure pipe is provided on the lower side of the negative pressure hole. The negative pressure pipe includes a transverse pipe. The main pipe is provided with an upper pipe corresponding to the negative pressure hole, which is used to communicate with the negative pressure hole. The main pipe is also provided with a lower pipe connected to the negative pressure machine.

[0014] In one embodiment, the movable plate is arranged on the frame of the coating device through a guide rail slider structure, and the frame is provided with a driving mechanism for driving the movable plate to move. Under the action of the driving mechanism, the movable plate moves toward or away from the outer circumferential surface of the coating roller.

[0015] The above-mentioned negative pressure ultra-thin coating device, at this time, fixes the negative pressure device and the coating lip together in a detachable connection manner. During use, the position of the negative pressure device can be adjusted according to actual needs, so that the fitting relationship between the negative pressure device and the coating roller is better, thereby improving the negative pressure effect during the coating process, thereby improving the coating quality during the ultra-thin coating process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the negative pressure ultra-thin coating device of the utility model;

[0017] Figure 2 It is a schematic diagram of a partial cross-sectional view of the negative pressure ultra-thin coating device of the utility model;

[0018] Figure 3 This is a partial structural schematic diagram of the negative pressure device of the negative pressure ultra-thin coating device of the utility model;

[0019] Figure 4 This is a partial structural schematic diagram of the negative pressure device of the negative pressure ultra-thin coating device of the utility model;

[0020] Among them, 1. coating roller; 2. coating lip; 3. moving plate; 4. negative pressure device; 41. fixing plate; 411. adjustment groove; 412. fastener; 421. first chamber; 422. second chamber; 431. first baffle; 432. second baffle; 44. negative pressure pipe; 441. transverse pipe; 442. upper pipe; 443. lower pipe; 45. negative pressure machine; 5. guide rail slider structure; 6. driving mechanism. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only."

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] like Figures 1 to 4 As shown, a negative pressure ultra-thin coating device is characterized in that it includes a coating roller 1 and a coating lip 2, wherein the coating lip 2 is fixed to the side position of the coating roller 1 through a movable plate 3, a negative pressure device 4 is provided on the lower side of the movable plate 3, the negative pressure device 4 is provided with a fixed plate 41, and the fixed plate 41 is provided with an adjustment groove 411, and the negative pressure device 4 is fixed to the movable plate 3 at the position of the adjustment groove 411 through a fastener 412.

[0025] At this time, the negative pressure device 4 is fixed together with the coating lip 2 in a detachable connection manner. During use, the position of the negative pressure device 4 can be adjusted according to actual needs, so that the fitting relationship between the negative pressure device 4 and the coating roller 1 is better, thereby improving the negative pressure effect during the coating process, thereby improving the coating quality during the ultra-thin coating process.

[0026] The negative pressure device 4 is used to provide a certain negative pressure. At this time, the negative pressure mainly acts on the outer side of the coating roller 1, which can prevent the coating substrate from being unstable due to the high-pressure turbulence generated by the gas, and the slurry film from being unstable when the substrate is moving at high speed, thereby achieving ultra-thin coating. Since the slurry may enter the negative pressure device 4 at this time, in order to prevent the slurry from entering the negative pressure machine 45, in this embodiment, the negative pressure device 4 includes a first chamber 421 and a second chamber 422 that are connected. The first chamber 421 is provided with an arc-shaped opening adapted to the coating roller 1, and the second chamber 422 is connected to the negative pressure machine 45 through a pipeline. The chamber of the negative pressure device 4 is divided into a first chamber 421 and a second chamber 422. At this time, the first chamber 421 is close to the coating roller 1, the second chamber 422 is far away from the coating roller 1, and the second chamber 422 is located in communication with the negative pressure machine 45, so that negative pressure is formed in the second chamber 422 and the first chamber 421.

[0027] Since the second chamber 422 is connected to the negative pressure machine 45 and the first chamber 421 is close to the coating roller 1, during use, the slurry may be sucked in and moved to the second chamber 422. Therefore, in order to reduce this situation, in this embodiment, a bending baffle is provided between the first chamber 421 and the second chamber 422, and the bending baffle includes a first baffle 431 and a second baffle 432. The first baffle 431 and the second baffle 432 are staggered, and a connecting channel is formed between the first baffle 431 and the second baffle 432 for connecting the first chamber 421 and the second chamber 422. By providing a bending baffle between the first chamber 421 and the second chamber 422, and the first baffle 431 and the second baffle 432 are staggered, the first chamber 421 and the second chamber 422 that were originally directly connected are separated to form a bent connecting channel, so that the slurry in the first chamber 421 is not easy to flow to the second chamber 422 under the action of negative pressure.

[0028] Since the first chamber 421 is under negative pressure, the slurry at the coating roller 1 and the coating lip 2 may splash into the first chamber 421. At this time, in order to further prevent the slurry from splashing too far, in this embodiment, the first baffle 431 and the second baffle 432 are V-shaped baffles, which are fixed to the side walls corresponding to the connecting channel, the opening of the first baffle 431 faces the coating roller 1, and the opening of the second baffle 432 faces the second chamber 422, and the second baffle 432 forms a connecting gap with the inner wall of the second chamber 422. The first baffle 431 and the second baffle 432 are set as V-shaped baffles, which can effectively prevent the splashing of the slurry. At the same time, the first baffle 431 and the second baffle 432 can form an S-shaped connecting channel, which further prevents the slurry from flowing to the second chamber 422 under the action of negative pressure.

[0029] At this time, the upper side of the first baffle plate 431 is close to the coating roller 1, which is used to form the upper side plate of the first chamber 421. The first baffle plate 431 is not only used to prevent the splashing of the slurry, but also can form the side wall of the first chamber 421. At this time, the upper side edge of the V-shaped baffle plate of the first baffle plate 431 abuts against the coating roller 1, which is used to form a partition between the first chamber 421 and the outside world.

[0030] In order to increase the area of ​​the first chamber 421 acting on the negative pressure roller, in the present embodiment, the first chamber 421 is distributed along the axial direction of the coating roller 1, and the second chamber 422 is located on the left or right side of the first chamber 421, that is, the first chamber 421 is close to one side of the coating roller 1 at this time, and the second chamber 422 is arranged on the left or right side of the first chamber 421, so that the connecting channel between the first chamber 421 and the second chamber 422 is parallel to the length direction of the coating roller 1, thereby increasing the area of ​​the connecting channel between the first chamber 421 and the second chamber 422. Furthermore, the contact between the first chamber 421 and the coating roller 1 is also in the length direction. Therefore, the negative pressure at the position of the second chamber 422 can act on the first chamber 421 more quickly and evenly, and then act on the coating roller 1, that is, the film and slurry at the position of the coating roller 1 are more stably affected by the negative pressure.

[0031] Under the effect of negative pressure, the slurry will enter the first chamber 421, so the slurry in the first chamber 421 needs to be collected and processed. In this embodiment, two inclined plates are provided on both sides of the bottom of the first chamber 421. The sides of the two inclined plates are higher than the middle position, and a collecting hole for collecting the slurry is provided in the middle of the inclined plates. The inclined plates can make the slurry flow better to the collecting hole at a lower position, so as to collect the slurry.

[0032] The second chamber 422 is mainly connected to the negative pressure machine 45 to transfer the negative pressure of the negative pressure machine 45 to the first chamber 421 (the other air at the position of the first chamber 421 flows from the second chamber 422 to the negative pressure machine 45). Therefore, in this embodiment, a negative pressure hole is provided at the bottom of the second chamber 422, and the second chamber 422 is connected to the negative pressure machine 45 at the position of the negative pressure hole.

[0033] Specifically, since the second chamber 422 also has a certain length, in order to make the negative pressure (air flow) in the second chamber 422 more stable, in this embodiment, the negative pressure holes are provided with two, evenly distributed at the bottom of the second chamber 422, and the negative pressure pipe 44 is provided at the lower side of the negative pressure hole, and the negative pressure pipe 44 includes a transverse pipe 441, and the main pipe is provided with an upper pipe 442 corresponding to the negative pressure hole, which is used to communicate with the negative pressure hole, and the main pipe is also provided with a lower pipe 443 connected to the negative pressure machine 45. The two negative pressure holes and the transverse pipe 441 can make the adsorption effect of the negative pressure machine 45 act more stably on the second chamber 422, so that the air flow inside the second chamber 422 is more stable.

[0034] Of course, for the coating production process, the coating lip 2 and the negative pressure device 4 also need to adjust their positions according to actual needs. Therefore, in this embodiment, the movable plate 3 is arranged on the frame of the coating device through the guide rail slider structure 5, and the frame is provided with a driving mechanism 6 for driving the movable plate 3 to move. Under the action of the driving mechanism 6, the movable plate 3 moves toward or away from the outer circumferential surface of the coating roller 1. The driving mechanism 6 can be a cylinder or an electric rod, which is used to control the movement of the movable plate 3, the coating roller 1, and the negative pressure device 4.

[0035] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0036] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A negative pressure ultra-thin coating device, characterized in that: It includes a coating roller and a coating lip, wherein the coating lip is fixed to the side of the coating roller through a movable plate, a negative pressure device is provided on the lower side of the movable plate, the negative pressure device is provided with a fixed plate, the fixed plate is provided with an adjustment groove, and the negative pressure device is fixed to the movable plate at the adjustment groove position through a fastener.

2. The negative pressure ultra-thin coating device according to claim 1, characterized in that: The negative pressure device comprises a first chamber and a second chamber that are connected, the first chamber is provided with an arc-shaped opening adapted to the coating roller, and the second chamber is connected to a negative pressure machine through a pipeline.

3. The negative pressure ultra-thin coating device according to claim 2, characterized in that: A bending baffle is provided between the first chamber and the second chamber, and the bending baffle includes a first baffle and a second baffle. The first baffle and the second baffle are staggered and a connecting channel is formed between the first baffle and the second baffle for connecting the first chamber and the second chamber.

4. The negative pressure ultra-thin coating device according to claim 3, characterized in that: The first baffle and the second baffle are V-shaped baffles, which are fixed on the side walls corresponding to the connecting channel, the opening of the first baffle faces the coating roller, the opening of the second baffle faces the second chamber, and the second baffle forms a connecting gap with the inner wall of the second chamber.

5. The negative pressure ultra-thin coating device according to claim 3, characterized in that: The upper side of the first baffle is close to the coating roller and is used to form an upper side plate of the first chamber.

6. The negative pressure ultra-thin coating device according to claim 3, characterized in that: The first chamber is distributed along the axis direction of the coating roller, and the second chamber is located on the left or right side of the first chamber.

7. The negative pressure ultra-thin coating device according to any one of claims 4 to 6, characterized in that: Two inclined plates are arranged on both sides of the bottom of the first chamber, the sides of the two inclined plates are higher than the middle position, and a receiving hole for collecting materials is arranged in the middle of the inclined plates.

8. The negative pressure ultra-thin coating device according to any one of claims 4 to 6, characterized in that: A negative pressure hole is provided at the bottom of the second chamber, and the second chamber is connected to the negative pressure machine at the position of the negative pressure hole.

9. The negative pressure ultra-thin coating device according to claim 8, characterized in that: There are two negative pressure holes, which are evenly distributed at the bottom of the second chamber. A negative pressure pipe is provided on the lower side of the negative pressure hole. The negative pressure pipe includes a transverse pipe. The transverse pipe is provided with an upper pipe corresponding to the negative pressure hole and is used to communicate with the negative pressure hole. The transverse pipe is also provided with a lower pipe connected to the negative pressure machine.

10. The negative pressure ultra-thin coating device according to claim 1, characterized in that: The movable plate is arranged on the frame of the coating device through a guide rail slider structure. The frame is provided with a driving mechanism for driving the movable plate to move. Under the action of the driving mechanism, the movable plate moves toward or away from the outer circumferential surface of the coating roller.

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