Coating solution bubble removing device of coating machine

Abstract

The utility model discloses a coating solution bubble removing device of a coating machine, which comprises a tank body filled with solution and a stirring shaft vertically and rotatably connected in the tank body, and the stirring shaft is connected with a filtering component capable of rotating along with the stirring shaft; the suction cover is located at the top in the tank body, connected with one side of the stirring shaft and capable of ascending and descending, the transfer box is located above the tank body and communicated with the suction cover, the transfer box can generate negative pressure to enable the suction cover to suck a solution, and the transfer box is further connected with an output pipe used for filtering bubbles of the solution and then sending the solution back into the tank body. And when the transfer box is in a negative pressure state, the output pipe can be automatically closed.

Description

Technical Field

[0001] The utility model relates to the field of coating machines, in particular to a coating solution degassing device for coating machines. Background Art

[0002] Coating machines are mainly used for surface coating production of films, papers, etc. This machine coats a layer of coating solution on the rolled substrate, and cuts it into sheets or rolls it up after drying. It uses a special multi-functional coating head and can achieve various forms of surface coating. During the mixing process of the coating solution, bubbles will be generated inside the coating solution. When the bubbles in the coating solution are applied to the cloth, the coating solution on the cloth will become uneven, thus affecting the quality of the finished cloth.

[0003] After searching, the utility model publication number is: CN219442312U, a coating solution degassing device for a coating machine, including a device body, a control panel is arranged on the front surface of the device body, an observation window is arranged on the inner wall of the front surface of the device body, a driving motor is arranged on the top of the device body, a bearing is arranged below the driving motor, a rotating shaft is arranged on the inner side of the bearing, a limiting hole is arranged on the bottom end of the rotating shaft, a supporting groove is arranged on the outer side of the rotating shaft, and a longitudinal wall-breaking knife is arranged on the inner side of the supporting groove. The utility model arranges a driving motor, a rotating shaft, a supporting groove, a longitudinal wall-breaking knife and a transverse wall-breaking knife. When the device body is used, the driving motor and the rotating shaft are used to drive the supporting groove to rotate, so that the longitudinal wall-breaking knife and the transverse wall-breaking knife arranged inside the supporting groove are used to cooperate to degas the bubbles contained in the coating solution body, thereby improving the degassing effect of the coating solution body and improving the work efficiency.

[0004] The device is internally provided with a stirring shaft with a plurality of wall-breaking knives to stir the coating solution and remove bubbles. However, the bubbles in the solution are not completely eliminated when they are discharged to the surface, and smaller bubbles may remain. However, this stirring structure cannot eliminate the smaller bubbles on the surface of the solution, and the debubbling effect on the coating solution is poor. Utility Model Content

[0005] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a coating solution debubbling device for a coating machine to solve the problem that the stirring structure proposed in the background technology cannot eliminate smaller bubbles on the surface of the solution and has a poor debubbling effect on the coating solution.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a coating solution debubbling device for a coating machine, comprising a tank body filled with a solution and a stirring shaft vertically rotatably connected to the tank body, wherein the stirring shaft is connected to a filtering component that can rotate with the stirring shaft;

[0007] The filtering assembly includes a suction hood located at the top of the tank body, connected to one side of the stirring shaft and capable of being raised and lowered, and a transfer box located above the tank body and communicating with the suction hood. The transfer box can generate negative pressure to allow the suction hood to inhale the solution. The transfer box is also connected to an output pipe for filtering the bubbles from the solution and sending it back to the inside of the tank body. When the transfer box is in a negative pressure state, the output pipe can be automatically closed.

[0008] Preferably, a motor is fixed at the top center of the tank body, the motor faces downward and is drivingly connected to the stirring shaft.

[0009] Preferably, an annular slide groove is provided through the top of the tank body, a support frame is vertically fixed to one side of the top of the stirring shaft inside the tank body, and a cylindrical sliding block slidably connected to the slide groove is fixed to the top of the support frame.

[0010] Preferably, the filter assembly also includes: a cylinder, an input pipe, an opening and closing piece, a filter screen and an air pump; the cylinder is fixed at the bottom of the support frame, the output shaft faces downward and is fixed vertically to the back of the suction cover, the front opening of the suction cover faces downward and is arranged horizontally, and the two sides of the suction cover are respectively 1-5 cm away from the stirring shaft and the inner wall of the tank; the transfer box is fixed at the top of the slider, the slider is provided with two through-holes running through the top and the bottom, the input pipe and the output pipe pass through the two through-holes respectively, the top end of the input pipe extends to the inner top of the transfer box, and the bottom end is connected with the suction cover, the top end of the output pipe is flush with the inner bottom of the transfer box, and the bottom is flush with the bottom of the support frame, the opening and closing piece is hinged at the bottom of the support frame by a torsion spring, and when the torsion spring is in a natural state, the opening and closing piece fits with the bottom end of the output pipe, the filter screen is embedded in the inside of the output pipe, the air pump is fixed at the top of the transfer box, and the input end is connected with the top of the transfer box through the tube body.

[0011] Preferably, a liquid level gauge is embedded in the top of the tank body, and two sides of the tank body are respectively connected with a liquid inlet pipe near the top and a liquid outlet pipe near the bottom.

[0012] Preferably, a transparent observation port is embedded in the front of the tank body.

[0013] Compared with the prior art, the beneficial effects that the utility model can achieve are: the utility model is connected with a filter component on one side of the stirring shaft, wherein the filter component is provided with a liftable suction cover, a transfer box located above the tank body, the transfer box is also provided with an output pipe that can only output but not input, and a filter net is provided in the output pipe. When stirring and removing bubbles, the air pump provided on the transfer box draws air in the transfer box, and the solution on the surface of the tank body is sucked into the transfer box through the liftable suction cover. After entering the transfer box, it will be discharged back into the tank body through the output pipe. While being discharged, it will be filtered through the filter net to filter smaller bubbles, thereby achieving the effect of eliminating large bubbles while stirring and filtering small bubbles, and the bubble removal efficiency is very high. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an overall cross-sectional view of the utility model;

[0015] Figure 2 This is a schematic diagram of the filter assembly of the utility model;

[0016] Figure 3 It is the external schematic diagram of the utility model;

[0017] Among them: 1. Tank body; 2. Stirring shaft; 3. Motor; 4. Liquid level meter; 5. Liquid inlet pipe; 6. Liquid outlet pipe; 7. Stirring frame; 8. Slide; 9. Sliding block; 10. Through-hole; 11. Input pipe; 12. Output pipe; 13. Filter screen; 14. Opening and closing piece; 15. Cylinder; 16. Support frame; 17. Suction cover; 18. Transfer box; 19. Air pump; 20. Observation port; 21. Filter assembly. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0019] Embodiment:

[0020] like Figure 1-3 As shown, the utility model provides a coating solution debubbling device for a coating machine, comprising a tank body 1 filled with a solution and a stirring shaft 2 vertically rotatably connected to the tank body 1, wherein the stirring shaft 2 is connected to a filter assembly 21 that can rotate with the stirring shaft;

[0021] The filtering assembly 21 includes a suction hood 17 located at the top of the tank body 1, connected to one side of the stirring shaft 2 and capable of being raised and lowered, and a transfer box 18 located above the tank body 1 and communicating with the suction hood 17. The transfer box 18 can generate negative pressure to allow the suction hood 17 to absorb the solution. The transfer box 18 is also connected to an output pipe 12 for filtering the bubbles from the solution and returning it to the inside of the tank body 1. When the transfer box 18 is in a negative pressure state, the output pipe 12 can be automatically closed.

[0022] In this embodiment, specifically, a motor 3 is fixed at the top center of the tank body 1, and the motor 3 faces downward and is transmission-connected to the stirring shaft 2;

[0023] Wherein, a plurality of stirring racks 7 are provided on both sides of the stirring shaft 2, and the stirring racks 7 are used to eliminate larger bubbles in the solution.

[0024] In this embodiment, specifically, an annular chute 8 is formed through the top of the tank body 1, a support frame 16 is vertically fixed to one side of the top of the stirring shaft 2 located inside the tank body 1, and a cylindrical slider 9 slidably connected to the chute 8 is fixed to the top of the support frame 16;

[0025] The cylindrical sliding block 9 can slide in the annular sliding groove 8 to drive the filter assembly 21 to move.

[0026] In this embodiment, specifically, the filter assembly 21 also includes: a cylinder 15, an input pipe 11, an opening and closing piece 14, a filter screen 13 and an air pump 19; the cylinder 15 is fixed to the bottom of the support frame 16, the output shaft is downward and is vertically fixed to the back of the suction cover 17, the front opening of the suction cover 17 is downward and horizontally arranged, and the two sides of the suction cover 17 are 1-5 cm away from the stirring shaft 2 and the inner wall of the tank body 1 respectively; the transfer box 18 is fixed to the top of the slider 9, and the slider 9 has two through-holes 10 running through the top and the bottom, and the input pipe 11 and the output pipe 12 are fixed to the bottom of the support frame 16, and the output shaft 14 is vertically fixed to the back of the suction cover 17, and the front opening of the suction cover 17 is downward and horizontally arranged, and the two sides of the suction cover 17 are respectively 1-5 cm away from the stirring shaft 2 and the inner wall of the tank body 1; the transfer box 18 is fixed to the top of the slider 9, and the slider 9 has two through-holes 10 running through the top and the bottom, and the input pipe 11 and the output pipe 12 are fixed to the bottom of the support frame 16, and the output shaft 14 is vertically fixed to the back of the suction cover 17 ... The two through-holes 10 are respectively passed through, the top of the input pipe 11 extends to the inner top of the transfer box 18, and the bottom is connected with the suction cover 17, the top of the output pipe 12 is flush with the inner bottom of the transfer box 18, and the bottom is flush with the bottom of the support frame 16, the opening and closing piece 14 is hinged to the bottom of the support frame 16 through a torsion spring, and when the torsion spring is in a natural state, the opening and closing piece 14 fits with the bottom of the output pipe 12, the filter screen 13 is embedded in the inside of the output pipe 12, the air pump 19 is fixed to the top of the transfer box 18, and the input end is connected with the top of the transfer box 18 through the pipe body;

[0027] Among them, the two through-holes 10 are sealed and penetrated with the output pipe 12 and the input pipe 11 respectively. The input pipe 11 can be raised and lowered when it is sealed and penetrated with the output pipe 12, which can be achieved by applying lubricating oil to the sealing ring. The opening and closing piece 14 is hinged by a torsion spring. The strength of the torsion spring needs to ensure that the gravity of the solution can make the opening and closing piece 14 rotate and open. When there is no solution, the opening and closing piece 14 is in a closed state that fits the bottom end of the output pipe 12 to prevent gas from drilling in from the bottom end of the output pipe 12 when the transfer box 18 is vacuumed, thereby affecting the suction effect of the suction cover 17.

[0028] In this embodiment, specifically, a liquid level gauge 4 is embedded on the top of the tank body 1, and two sides of the tank body 1 are respectively connected with a liquid inlet pipe 5 near the top and a liquid outlet pipe 6 near the bottom;

[0029] Among them, the liquid level meter 4 is used to monitor the liquid level of the solution inside the tank body 1 to prevent the liquid level from being too high to cover the suction hood 17. The height of the liquid level must not be higher than the highest position of the suction hood 17 opening. The suction hood 17 must be lowered to absorb the surface solution. It can be selected whether to perform absorption and filtration.

[0030] In this embodiment, specifically, a transparent observation port 20 is embedded in the front of the tank body 1;

[0031] The observation port 20 is convenient for observing the bubbling condition of the internal solution.

[0032] Working principle: when in use, the solution is discharged into the tank body 1 from the liquid inlet pipe 5, and the motor 3 is started to stir the solution through the stirring shaft 2 and the stirring frame 7, and the bubbles inside the solution are discharged to the surface and eliminated. When small bubbles that are difficult to eliminate appear on the surface of the solution, the cylinder 15 is started to drive the suction cover 17 to move down until it contacts the surface of the solution, and the air pump 19 is started to draw a vacuum into the transfer box 18. At this time, the solution flows from the suction cover 17 and the input pipe 11 to the transfer box 18, and then enters the output pipe 12. After being filtered by the filter mesh 13, small bubbles remain above the filter mesh 13, and the pure solution flows down from the pores of the filter mesh 13. Due to the gravity of the solution, the opening and closing piece 14 hinged by the torsion spring is opened, and the solution falls from the infusion tube to the bottom and returns to the solution in the tank body 1. Finally, it is discharged from the liquid outlet pipe 6 after there are no bubbles.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coating solution degassing device for a coating machine, comprising a tank body (1) filled with a solution and a stirring shaft (2) vertically rotatably connected to the tank body (1), characterized in that: The stirring shaft (2) is connected to a filtering assembly (21) that can rotate with the stirring shaft; The filtering assembly (21) comprises a suction hood (17) located at the top of the tank body (1), connected to one side of the stirring shaft (2) and capable of being raised and lowered, and a transfer box (18) located above the tank body (1) and communicating with the suction hood (17). The transfer box (18) can generate negative pressure to allow the suction hood (17) to absorb the solution. The transfer box (18) is also connected to an output pipe (12) for filtering the solution and returning it to the inside of the tank body (1), and when the transfer box (18) is in a negative pressure state, the output pipe (12) can be automatically closed.

2. A coating solution degassing device for a coating machine according to claim 1, characterized in that: A motor (3) is fixed at the top center of the tank body (1), and the motor (3) faces downward and is drivingly connected to the stirring shaft (2).

3. A coating solution degassing device for a coating machine according to claim 1, characterized in that: An annular slide groove (8) is provided through the top of the tank body (1); a support frame (16) is vertically fixed to one side of the top of the stirring shaft (2) located inside the tank body (1); and a cylindrical sliding block (9) is fixed to the top of the support frame (16) and is slidably connected to the slide groove (8).

4. A coating solution degassing device for a coating machine according to claim 1, characterized in that: The filter assembly (21) further comprises: a cylinder (15), an input pipe (11), an opening and closing plate (14), a filter screen (13) and an air pump (19); the cylinder (15) is fixed to the bottom of the support frame (16), the output shaft is downward and is vertically fixed to the back of the suction cover (17), the front opening of the suction cover (17) is downward and arranged horizontally, and the two sides of the suction cover (17) are respectively 1-5 cm away from the stirring shaft (2) and the inner wall of the tank body (1); the transfer box (18) is fixed to the top of the slider (9), the slider (9) is provided with two through-holes (10) running through the top and the bottom, the input pipe (11) and the output pipe (12) are respectively The two through openings (10) are penetrated, the top end of the input pipe (11) extends to the inner top of the transfer box (18), and the bottom end is connected with the suction cover (17); the top end of the output pipe (12) is flush with the inner bottom of the transfer box (18), and the bottom is flush with the bottom of the support frame (16); the opening and closing piece (14) is hinged to the bottom of the support frame (16) through a torsion spring, and when the torsion spring is in a natural state, the opening and closing piece (14) is in contact with the bottom end of the output pipe (12); the filter screen (13) is embedded in the inside of the output pipe (12); the air pump (19) is fixed on the top of the transfer box (18), and the input end is connected with the top of the transfer box (18) through the pipe body.

5. The coating solution degassing device of a coating machine according to claim 1, characterized in that: A liquid level gauge (4) is embedded on the top of the tank body (1), and two sides of the tank body (1) are respectively connected with a liquid inlet pipe (5) near the top and a liquid outlet pipe (6) near the bottom.

6. A coating solution degassing device for a coating machine according to claim 1, characterized in that: A transparent observation port (20) is embedded on the front side of the tank body (1).

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