Dispersion device for coating processing

Abstract

The utility model provides a kind of dispersion device for coating processing, it is related to acrylic pressure-sensitive adhesive coating field, including coating machine, including fuselage, glue tank in the inner chamber of fuselage, dispersion mechanism, including the stirring assembly for dispersion stirring, and the moving assembly for driving stirring assembly to move, the stirring assembly includes support plate, located the front of support plate pneumatic turbine stirring rod, located the back of support plate pneumatic motor, with the adjusting valve of pneumatic motor air communication;The utility model is dispersed to glue by pneumatic turbine stirring rod in dispersion mechanism, effectively prevents glue to form skin layer in the stationary state in glue tank, simultaneously, the setting of moving assembly makes that stirring assembly can move in glue tank, to realize more comprehensive stirring to glue, avoid dead angle of stirring, to effectively solve the problem that comma doctor blade coater glue tank glue is easy to skin in prior art.

Description

Technical Field

[0001] This utility model belongs to the field of acrylic pressure-sensitive adhesive coating, specifically a dispersion device for coating processing. Background Technology

[0002] The comma doctor blade coater is a common coating equipment suitable for coating processes of various materials. Its working principle is to scrape away the coating by a fixed doctor blade. The notched edge of the doctor blade is directly opposite the cutting point of the coating roller or liner roller, scraping away the coating that has passed through, thereby uniformly coating the material. It is mainly used in the PI, PP, carbon fiber cloth, BOPET polyester film, optical film, high-end tape and various functional film industries. It is suitable for materials with / without inorganic solvents on the surface, and is also suitable for adhesives with a wide viscosity range. Acrylic pressure-sensitive adhesive coating is usually done using a comma doctor blade coater to uniformly coat the acrylic pressure-sensitive adhesive on the substrate surface.

[0003] However, in existing technologies, comma blade coating typically employs an open baffle structure, where the adhesive is directly exposed to the air. After the solvent evaporates rapidly, the solid content on the surface of the adhesive increases, forming a dried skin layer. This evaporation rate intensifies, especially under high coating speeds or high temperatures, making the skin formation phenomenon more pronounced. Consequently, during comma blade coating, the surface of the adhesive in the coating machine's glue tank is prone to forming a skin, resulting in poor coating appearance and affecting the uniformity of the coating.

[0004] In summary, this utility model provides a dispersing device for coating processing to solve the above-mentioned problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A dispersing device for coating processing includes a coating machine, a machine body, a glue tank located in the inner cavity of the machine body, a dispersing mechanism including a stirring assembly for dispersing and stirring, and a moving assembly for moving the stirring assembly. The stirring assembly includes a support plate, a pneumatic turbine stirring rod located on the front of the support plate, a pneumatic motor located on the back of the support plate, a regulating valve communicating with the air intake of the pneumatic motor, and a fixed plate fixed to the top of the machine body. The end of the pneumatic turbine stirring rod away from the support plate extends into the inner cavity of the glue tank. The moving assembly is fixed to the bottom of the fixed plate. A pumping assembly includes a storage tank for storing acrylic pressure-sensitive adhesive and a delivery pump for pumping the acrylic pressure-sensitive adhesive.

[0007] Furthermore, in this invention, the output shaft of the pneumatic motor is connected to the pneumatic turbine stirring rod, and the pneumatic motor is fixedly connected to the back of the support plate.

[0008] Furthermore, in this utility model, the moving component includes a fixed box, a servo motor located on one side of the body, a ball screw located in the inner cavity of the fixed box, a ball nut sleeved on the surface of the ball screw, and a slide located at the bottom of the fixed box, and the top of the support plate is fixedly connected to the slide.

[0009] Furthermore, in this utility model, the output shaft of the servo motor passes through the inner cavity of the fixed box and is connected to the ball screw drive. The other end of the ball screw is movably connected to the inner cavity of the fixed box through a bearing. The fixed box is fixedly connected to the bottom of the fixed plate.

[0010] Furthermore, in this utility model, the inner cavity of the ball screw and the ball nut are engaged, the bottom of the ball nut is fixedly connected to the slide, and the slide is slidably connected to the bottom of the fixed box.

[0011] Furthermore, in this invention, the delivery pump is connected to the glue storage tank and the glue trough respectively through a delivery pipe, and the delivery pump is preferably a screw pump.

[0012] Beneficial effects: This utility model has the following beneficial effects:

[0013] This invention utilizes a pneumatic turbine stirring rod in the dispersion mechanism to efficiently disperse and stir the adhesive, effectively preventing the formation of a skin layer when the adhesive is stationary in the glue tank. Simultaneously, the moving component allows the stirring assembly to move within the glue tank, achieving more comprehensive stirring and avoiding dead zones. Furthermore, the pumping component uses a delivery pump to pump the acrylic pressure-sensitive adhesive from the storage tank to the glue tank, ensuring a continuous supply of adhesive during the coating process. This effectively solves the problem of adhesive skin formation in the glue tank of existing comma-type doctor blade coaters. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a rear view structural diagram of the fuselage of this utility model;

[0016] Figure 3 This is a schematic diagram of the separated state structure of the stirring component and the moving component of this utility model;

[0017] Figure 4 This is a utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0018] In the picture:

[0019] 100. Coating machine; 110. Machine body; 120. Adhesive tank; 200. Dispersion mechanism; 210. Mixing assembly; 211. Support plate; 212. Pneumatic turbine mixing rod; 213. Pneumatic motor; 214. Regulating valve; 215. Fixing plate; 220. Moving assembly; 221. Fixing box; 222. Servo motor; 223. Ball screw; 224. Ball nut; 225. Slide; 300. Pumping assembly; 310. Adhesive storage tank; 320. Transfer pump. Detailed Implementation

[0020] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0021] Example 1

[0022] like Figure 1-4 As shown, this is the first embodiment of the present invention. This embodiment provides a dispersing device for coating processing, including a coating machine 100, including a machine body 110, a glue tank 120 located in the inner cavity of the machine body 110, a dispersing mechanism 200, including a stirring assembly 210 for dispersing and stirring, and a moving assembly 220 for moving the stirring assembly 210. The stirring assembly 210 includes a support plate 211, a pneumatic turbine stirring rod 212 located on the front of the support plate 211, a pneumatic motor 213 located on the back of the support plate 211, a regulating valve 214 connected to the air intake of the pneumatic motor 213, and a fixing plate 215 fixed to the top of the machine body 110. The end of the pneumatic turbine stirring rod 212 away from the support plate 211 extends into the inner cavity of the glue tank 120. The moving assembly 220 is fixed to the bottom of the fixing plate 215. The pumping assembly 300 includes a storage tank 310 for storing acrylic pressure-sensitive adhesive and a delivery pump 320 for pumping acrylic pressure-sensitive adhesive.

[0023] like Figure 1-4As shown, the pneumatic motor 213 controls the air supply through the regulating valve 214, thereby adjusting the speed of the pneumatic turbine stirring rod 212 to meet the stirring requirements of acrylic pressure-sensitive adhesives of different viscosities. Furthermore, the pneumatic turbine stirring rod 212 features high speed and low energy consumption, efficiently mixing the adhesive evenly and reducing skinning. Under the action of the moving component 220, the stirring component 210 can reciprocate along the length of the adhesive tank 120, ensuring that the adhesive is fully stirred at all positions within the adhesive tank 120. The servo motor 222 drives the ball screw 223 to rotate, and the ball nut 224 moves on the ball screw 223, thereby driving the moving component 210 on the slide 225 and support plate 211 to move, thus ensuring the stirring assembly... To ensure the accuracy of the position of component 210 during movement, the conveying pump 320 in the pumping assembly 300 is a screw pump. Screw pumps have the characteristics of strong self-priming ability, stable conveying, and no pulsation, making them suitable for pumping acrylic pressure-sensitive adhesives. The adhesive in the storage tank 310 is stably conveyed to the adhesive tank 120 through the conveying pump 320, ensuring a continuous supply of adhesive during the coating process. At the same time, the use of screw pumps can also effectively prevent leakage and contamination of adhesive during the conveying process, improving the coating quality. Through the synergistic action of the dispersion mechanism 200, the moving assembly 220, and the pumping assembly 300, efficient dispersion and continuous supply of acrylic pressure-sensitive adhesive are achieved, effectively solving the problem of adhesive skinning in the adhesive tank of the comma doctor blade coater in the prior art, and improving the uniformity and quality of coating.

[0024] Example 2

[0025] Reference Figure 1-4 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0026] In this embodiment, the output shaft of the pneumatic motor 213 is connected to the pneumatic turbine stirring rod 212, and the pneumatic motor 213 is fixedly connected to the back of the support plate 211.

[0027] The moving component 220 includes a fixed box 221, a servo motor 222 located on one side of the body 110, a ball screw 223 located in the inner cavity of the fixed box 221, a ball nut 224 sleeved on the surface of the ball screw 223, and a slide 225 located at the bottom of the fixed box 221, and the top of the support plate 211 is fixedly connected to the slide 225.

[0028] The output shaft of the servo motor 222 passes through the inner cavity of the fixed box 221 and is connected to the ball screw 223 for transmission. The other end of the ball screw 223 is movably connected to the inner cavity of the fixed box 221 through a bearing. The fixed box 221 is fixedly connected to the bottom of the fixed plate 215.

[0029] The output shaft of the servo motor 222 passes through the inner cavity of the fixed box 221 and is connected to the ball screw 223 for transmission. The other end of the ball screw 223 is movably connected to the inner cavity of the fixed box 221 through a bearing. The fixed box 221 is fixedly connected to the bottom of the fixed plate 215.

[0030] The delivery pump 320 is connected to the glue storage tank 310 and the glue tank 120 through delivery pipes. The delivery pump 320 is preferably a screw pump.

[0031] like Figure 1-4 As shown, the acrylic pressure-sensitive adhesive is first injected into the storage tank 310. The storage tank 310 is also equipped with a stirring device for continuous stirring of the acrylic pressure-sensitive adhesive in the tank. The delivery pump 320 is started, and the delivery pump 320 pumps the acrylic pressure-sensitive adhesive into the adhesive tank 120 through the delivery pipe. Then, the pneumatic motor 213 is started. The output shaft of the pneumatic motor 213 drives the pneumatic turbine stirring rod 212 to rotate, stirring the acrylic pressure-sensitive adhesive in the adhesive tank 120. At the same time, the air supply to the pneumatic motor 213 can be adjusted by the regulating valve 214, thereby realizing the adjustment of the rotation speed of the pneumatic turbine stirring rod 212. The system is controlled to adapt to the stirring requirements of acrylic pressure-sensitive adhesives of different viscosities. In addition, the servo motor 222 is started, and the output shaft of the servo motor 222 drives the ball screw 223 to rotate. The ball nut 224 moves on the surface of the ball screw 223, which in turn drives the stirring assembly 210 on the slide 225 and the support plate 211 to reciprocate along the length of the glue tank 120. This ensures that the glue is fully stirred at all positions in the glue tank 120, avoids stirring dead corners, and effectively prevents the glue from forming a skin layer in the glue tank 120 when it is stationary, thereby improving the uniformity and quality of coating.

[0032] In use, the acrylic pressure-sensitive adhesive in the storage tank 310 is transported to the adhesive tank 120 by the delivery pump 320 to prepare for subsequent stirring and coating. The pneumatic motor 213 drives the pneumatic turbine stirring rod 212 to rotate at high speed, which strongly disperses the adhesive in the adhesive tank 120. The regulating valve 214 is used to control the air intake of the pneumatic motor 213, thereby adjusting the stirring speed and intensity to adapt to different viscosities or process requirements. The servo motor 222 drives the ball screw 223 to rotate, and the ball nut 224 moves along the screw. This drives the slide 225 and the stirring component 210 to move horizontally. This process enables the stirring rod to move automatically back and forth or in sections above the glue tank 120, ensuring that the glue is evenly dispersed. Through the high coordination of the coating machine 100, the dispersing mechanism 200 and the pumping component 300, the entire process of glue conveying, stirring, uniform dispersion and coating preparation is automated. This not only solves the problem of glue forming a skin in the glue tank of the comma scraper coating machine in the prior art, but also effectively improves the uniformity and quality of coating.

[0033] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0034] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A dispersing device for coating processing, characterized by: include, The coating machine (100) includes a body (110) and a glue tank (120) located in the inner cavity of the body (110). The dispersing mechanism (200) includes a stirring assembly (210) for dispersing and stirring, and a moving assembly (220) for moving the stirring assembly (210). The stirring assembly (210) includes a support plate (211), a pneumatic turbine stirring rod (212) located on the front of the support plate (211), a pneumatic motor (213) located on the back of the support plate (211), a regulating valve (214) connected to the air intake of the pneumatic motor (213), and a fixing plate (215) fixed to the top of the body (110). The end of the pneumatic turbine stirring rod (212) away from the support plate (211) extends into the inner cavity of the glue tank (120), and the moving assembly (220) is fixed to the bottom of the fixing plate (215). The pumping assembly (300) includes a storage tank (310) for storing acrylic pressure-sensitive adhesive and a delivery pump (320) for pumping the acrylic pressure-sensitive adhesive.

2. The dispersing apparatus for coating processing according to claim 1, wherein: The output shaft of the pneumatic motor (213) is connected to the pneumatic turbine stirring rod (212) for transmission, and the pneumatic motor (213) is fixedly connected to the back of the support plate (211).

3. The dispersing apparatus for coating processing according to claim 1, wherein: The moving component (220) includes a fixed box (221), a servo motor (222) located on one side of the body (110), a ball screw (223) located in the inner cavity of the fixed box (221), a ball nut (224) sleeved on the surface of the ball screw (223), and a slide (225) located at the bottom of the fixed box (221), and the top of the support plate (211) is fixedly connected to the slide (225).

4. The dispersing apparatus for coating processing according to claim 3, wherein: The output shaft of the servo motor (222) passes through the inner cavity of the fixed box (221) and is connected to the ball screw (223) for transmission. The other end of the ball screw (223) is movably connected to the inner cavity of the fixed box (221) through a bearing. The fixed box (221) is fixedly connected to the bottom of the fixed plate (215).

5. The dispersing apparatus for coating processing according to claim 3, wherein: The ball screw (223) engages with the inner cavity of the ball nut (224), the bottom of the ball nut (224) is fixedly connected to the slide (225), and the slide (225) is slidably connected to the bottom of the fixed box (221).

6. The dispersing apparatus for coating processing according to claim 1, wherein: The delivery pump (320) is connected to the glue storage tank (310) and the glue tank (120) respectively through the delivery pipe. The delivery pump (320) is preferably a screw pump.

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