Rapid negative pressure coating device for double surfaces of aluminum plate

Abstract

The utility model relates to the technical field of coating processing, and discloses an aluminum plate double-sided rapid negative pressure coating device, which comprises a conduction mechanism and a coating mechanism, the coating mechanism is fixedly connected to the top of the conduction mechanism, the coating mechanism comprises a feeding unit and a negative pressure unit, the feeding unit is fixedly connected to the top of the conduction mechanism, and the negative pressure unit is fixedly connected to the bottom of the conduction mechanism. The negative pressure unit is fixedly connected to the top of the conduction mechanism, and the conduction mechanism is composed of a bottom frame, a winding roller, a bearing roller, a bearing bottom shell, a telescopic frame, a hydraulic connecting frame, an upper coating roller and a lower coating roller. According to the aluminum plate double-face rapid negative pressure coating device, by arranging the two coating rollers and the two air exhaust nozzles, when an aluminum plate passes through, two suction cavities can be formed, the two end faces of the aluminum plate can be evenly coated, the working efficiency is improved, redundant coating liquid can be effectively recycled by arranging a receiving circulation mode, and the coating efficiency is improved. And the coating liquid is prevented from being lost, the economic efficiency can be better improved, and the coating sustainability can be better improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coating processing, in particular to a device for rapid negative pressure coating on both sides of an aluminum plate. Background Art

[0002] Aluminum plates have excellent physical and chemical properties, such as light weight, corrosion resistance, easy processing, and beautiful appearance. At the same time, with the continuous advancement of science and technology and the continuous improvement of technology, the application areas of aluminum plates are constantly expanding. When aluminum plates are processed, coating processes are required.

[0003] The prior art discloses an automatic coating device for the surface coating of an aluminum plate with application number: 201720149604.1, including an unwinding mechanism, an anti-curving mechanism, a coating mechanism, a feeding mechanism, a hopper, a drying mechanism and a winding mechanism; the coating mechanism includes a frame, a roller cylinder group, a coating nozzle, a cover plate, a slide rail, and a pressure drive assembly; the cover plate is vertically arranged on one side of the frame, and is slidably connected to the frame through a horizontally arranged slide rail, and a roller cylinder group is arranged on the frame, and the roller cylinder group is adjacent to the cover plate; one end of the pressure drive assembly is fixed to the frame, and the other end is fixed to the cover plate; the coating nozzle is arranged at the upper end of the cover plate with the nozzle facing downward. The utility model makes up for the technical defect of uneven coating that is easily caused by single roller rolling through secondary coating. The relatively independent structure makes it easy to disassemble and maintain and repair.

[0004] However, the existing technology still has the following shortcomings. First, the above-mentioned device compensates for the technical defect of uneven coating easily caused by single roller rolling by means of secondary coating. However, during the coating process, the above-mentioned device needs to perform secondary coating to improve uniformity, and the speed is slow, which cannot meet the high efficiency requirements of the modern printing industry. Utility Model Content

[0005] The utility model aims to provide a device for double-sided rapid negative pressure coating of an aluminum plate to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a device for rapid negative pressure coating on both sides of an aluminum plate, comprising a conduction mechanism and a coating mechanism, wherein the coating mechanism is fixedly connected to the top of the conduction mechanism.

[0007] The coating mechanism comprises a feeding unit and a negative pressure unit, wherein the feeding unit is fixedly connected to the top of the conducting mechanism, and the negative pressure unit is fixedly connected to the top of the conducting mechanism.

[0008] Preferably, the conduction mechanism consists of a base frame, a winding roller, a load-bearing roller, a receiving bottom shell, a telescopic frame, a hydraulic connecting frame, an upper coating roller and a lower coating roller, the winding roller is rotatably connected to the side of the base frame, the load-bearing roller is rotatably connected to the other side of the base frame, the receiving bottom shell fixes the top of the base frame, the telescopic frame is movably connected to the side of the receiving bottom shell, the hydraulic connecting frame is fixedly connected to the output end of the telescopic frame, the upper coating roller is rotatably connected to the inside of the hydraulic connecting frame, and the lower coating roller is rotatably connected to the inside of the hydraulic connecting frame, playing the main role of load bearing and conduction.

[0009] Preferably, the feeding unit is composed of a circulation box, a suction pump, a support rod, a hopper, a material guide pipe, a material discharge chamber, a first connecting groove, a first discharge rubber nozzle and a second discharge rubber nozzle. The circulation box is fixedly connected to the top of the base frame, the suction pump is fixedly connected to the side of the circulation box, the support rod is fixedly connected to the top of the receiving bottom shell, the hopper is fixedly connected to the top of the support rod, the material guide pipe is fixedly connected between the circulation box and the hopper, the material discharge chamber is fixedly connected to the bottom of the hopper, the first connecting groove is opened inside the material discharge chamber, the first discharge rubber nozzle is fixedly connected to the side of the material discharge chamber, and the second discharge rubber nozzle is fixedly connected to the side of the material discharge chamber, which plays the main role of circulating feeding and can recycle excess paint.

[0010] Preferably, the negative pressure unit consists of an exhaust port, an exhaust connecting pipe, an air duct, a connecting block, a negative pressure shell, an exhaust nozzle and a second connecting groove; the exhaust port is fixedly connected to the side of the receiving bottom shell, the exhaust connecting pipe is fixedly connected to the top of the exhaust port, the air duct is fixedly connected to the side of the exhaust connecting pipe, the connecting block is fixedly connected to the surface of the air duct, the negative pressure shell is fixedly connected to the side of the connecting block, the exhaust nozzle is fixedly connected to the side of the negative pressure shell, and the second connecting groove is opened in the interior of the negative pressure shell, so as to facilitate the coating liquid to be evenly adsorbed on the surface of the aluminum plate by means of negative pressure, thereby improving the coating quality.

[0011] Preferably, the first discharging rubber nozzle and the second discharging rubber nozzle are respectively attached to the surfaces of the upper coating roller and the lower coating roller, so as to facilitate coating on the surfaces of the upper coating roller and the lower coating roller.

[0012] Preferably, the side surface of the negative pressure housing is arc-shaped and is located to the side of the upper coating roller and the lower coating roller, so as to fit the side surfaces of the upper coating roller and the lower coating roller and to draw negative pressure inside.

[0013] Preferably, the suction nozzle is directed between the upper coating roller and the lower coating roller, so that when the aluminum plate passes between the upper coating roller and the lower coating roller, the suction nozzle can suck the air in the space to generate negative pressure. When the air is extracted, the external air with a higher pressure will flow to this low-pressure area, thereby maintaining air flow, which can help the coating liquid better adhere to the surface of the aluminum plate and reduce dripping or accumulation of liquid during the coating process.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The device for rapid negative pressure coating on both sides of the aluminum plate is provided with two coating rollers and two suction nozzles, so that two suction chambers can be formed when the aluminum plate passes through, and the coating work can be evenly performed on both end surfaces of the aluminum plate, thereby improving work efficiency.

[0016] 2. The device for rapid negative pressure coating on both sides of the aluminum plate can effectively recycle excess coating liquid and prevent the loss of coating liquid by providing a receiving circulation method, thereby better improving economic efficiency and sustainability of coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0018] Figure 2 This is a side view of the structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0020] Figure 4 It is a schematic diagram of the side structure of the negative pressure housing of the utility model.

[0021] In the figure: 1. transmission mechanism; 101. base frame; 102. winding roller; 103. bearing roller; 105. receiving bottom shell; 106. telescopic frame; 107. hydraulic connecting frame; 108. upper coating roller; 109. lower coating roller; 2. coating mechanism; 201. circulation box; 202. suction pump; 203. support rod; 204. hopper; 205. material guide pipe; 206. material discharge chamber; 207. first connecting groove; 208. first discharge rubber nozzle; 209. second discharge rubber nozzle; 211. exhaust port; 212. exhaust connecting pipe; 213. air duct; 214. connecting block; 215. negative pressure shell; 216. suction nozzle; 217. second connecting groove. DETAILED DESCRIPTION

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

[0023] See also Figure 1-4 The utility model provides the following technical solution: a device for rapid negative pressure coating on both sides of an aluminum plate, comprising a conducting mechanism 1 and a coating mechanism 2, wherein the coating mechanism 2 is fixedly connected to the top of the conducting mechanism 1.

[0024] The coating mechanism 2 includes a feeding unit and a negative pressure unit. The feeding unit is fixedly connected to the top of the conducting mechanism 1 , and the negative pressure unit is fixedly connected to the top of the conducting mechanism 1 .

[0025] The transmission mechanism 1 is composed of a base frame 101, a winding roller 102, a bearing roller 103, a receiving bottom shell 105, a telescopic frame 106, a hydraulic connecting frame 107, an upper coating roller 108 and a lower coating roller 109. The winding roller 102 is rotatably connected to the side of the base frame 101, the bearing roller 103 is rotatably connected to the other side of the base frame 101, the receiving bottom shell 105 fixes the top of the base frame 101, the telescopic frame 106 is movably connected to the side of the receiving bottom shell 105, the hydraulic connecting frame 107 is fixedly connected to the output end of the telescopic frame 106, the upper coating roller 108 is rotatably connected to the inside of the hydraulic connecting frame 107, and the lower coating roller 109 is rotatably connected to the inside of the hydraulic connecting frame 107, playing the main role of bearing and transmission.

[0026] The feeding unit is composed of a circulation box 201, a suction pump 202, a support rod 203, a hopper 204, a material guide pipe 205, a material discharge chamber 206, a first connecting groove 207, a first discharge rubber nozzle 208 and a second discharge rubber nozzle 209. The circulation box 201 is fixedly connected to the top of the base frame 101, the suction pump 202 is fixedly connected to the side of the circulation box 201, the support rod 203 is fixedly connected to the top of the receiving bottom shell 105, the hopper 204 is fixedly connected to the top of the support rod 203, the material guide pipe 205 is fixedly connected between the circulation box 201 and the hopper 204, and the material discharge chamber 206 is fixedly connected to the bottom of the hopper 204. The first connecting groove 207 is opened in the interior of the material discharge chamber 206, the first discharge rubber nozzle 208 is fixedly connected to the side of the material discharge chamber 206, the first discharge rubber nozzle 208 and the second discharge rubber nozzle 209 are respectively attached to the surface of the upper coating roller 108 and the lower coating roller 109, so as to facilitate coating on the surface of the upper coating roller 108 and the lower coating roller 109, the second discharge rubber nozzle 209 is fixedly connected to the side of the material discharge chamber 206, plays the role of main circulation feeding, and can recycle the excess coating. The negative pressure unit consists of an exhaust port 211, an exhaust connecting pipe 212, an air duct 213, a connecting block 214, a negative pressure shell 215, The exhaust nozzle 216 and the second connecting groove 217 are composed of the exhaust port 211 fixedly connected to the side of the receiving bottom shell 105, the exhaust connecting pipe 212 fixedly connected to the top of the exhaust port 211, the air duct 213 fixedly connected to the side of the exhaust connecting pipe 212, the connecting block 214 fixedly connected to the surface of the air duct 213, and the negative pressure shell 215 fixedly connected to the side of the connecting block 214. The side of the negative pressure shell 215 is arc-shaped and is located on the side of the upper coating roller 108 and the lower coating roller 109, so as to fit the side of the upper coating roller 108 and the lower coating roller 109 to extract negative pressure inside. The exhaust nozzle 216 is fixedly connected to the negative pressure shell 2 On the side of 15, the air suction nozzle 216 is oriented between the upper coating roller 108 and the lower coating roller 109, so that when the aluminum plate passes between the upper coating roller 108 and the lower coating roller 109, the air suction nozzle 216 can suck the air in the space to generate negative pressure. When the air is extracted, the external air with a higher pressure will flow to this low-pressure area, thereby maintaining air flow, which can help the coating liquid to better adhere to the surface of the aluminum plate and reduce the dripping or accumulation of the liquid during the coating process. The second connecting groove 217 is opened inside the negative pressure shell 215, which is convenient for the coating liquid to be evenly adsorbed on the surface of the aluminum plate by negative pressure, thereby improving the coating quality.

[0027] When in use, the aluminum plate is transferred by the winding roller 102 and the carrying roller 103 through the first connecting groove 207 and the second connecting groove 217, and the upper coating roller 108 and the lower coating roller 109 are adjusted by the hydraulic connecting frame 107 to fit the aluminum plate, and the upper coating roller 108 and the lower coating roller 109 are driven to roll during the transfer, and the first discharging rubber nozzle 208 and the second discharging rubber nozzle 209 apply the coating liquid on the surface of the upper coating roller 108 and the lower coating roller 109, and the aluminum plate is coated by the upper coating roller 108 and the lower coating roller 109, and at the same time, the exhaust port 211 is driven to extract the air in the gap between the upper coating roller 108 and the lower coating roller 109 and the aluminum plate through the exhaust nozzle 216, and the negative pressure is used to assist the coating process to ensure that the coating material can be evenly distributed on the target surface.

[0028] Although the 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 device for double-sided rapid negative pressure coating of an aluminum plate, comprising a conducting mechanism (1) and a coating mechanism (2), characterized in that: The coating mechanism (2) is fixedly connected to the top of the conducting mechanism (1); The coating mechanism (2) comprises a feeding unit and a negative pressure unit, the feeding unit is fixedly connected to the top of the conducting mechanism (1), and the negative pressure unit is fixedly connected to the top of the conducting mechanism (1).

2. The device for double-sided rapid negative pressure coating of aluminum plate according to claim 1, characterized in that: The transmission mechanism (1) is composed of a base frame (101), a winding roller (102), a bearing roller (103), a receiving bottom shell (105), a telescopic frame (106), a hydraulic connecting frame (107), an upper coating roller (108) and a lower coating roller (109), wherein the winding roller (102) is rotatably connected to a side of the base frame (101), the bearing roller (103) is rotatably connected to the other side of the base frame (101), the receiving bottom shell (105) fixes the top of the base frame (101), the telescopic frame (106) is movably connected to the side of the receiving bottom shell (105), the hydraulic connecting frame (107) is fixedly connected to the output end of the telescopic frame (106), the upper coating roller (108) is rotatably connected to the inside of the hydraulic connecting frame (107), and the lower coating roller (109) is rotatably connected to the inside of the hydraulic connecting frame (107).

3. The device for double-sided rapid negative pressure coating of aluminum plate according to claim 2, characterized in that: The feeding unit is composed of a circulation box (201), a suction pump (202), a support rod (203), a hopper (204), a material guide pipe (205), a material discharge chamber (206), a first connecting groove (207), a first discharge rubber nozzle (208) and a second discharge rubber nozzle (209). The circulation box (201) is fixedly connected to the top of the bottom frame (101), the suction pump (202) is fixedly connected to the side of the circulation box (201), and the support rod (203) is fixedly connected to the top of the bottom shell (105). The hopper (204) is fixedly connected to the top of the support rod (203), the material guide pipe (205) is fixedly connected between the circulation box (201) and the hopper (204), the material discharge chamber (206) is fixedly connected to the bottom of the hopper (204), the first connecting groove (207) is opened inside the material discharge chamber (206), the first discharge rubber nozzle (208) is fixedly connected to the side of the material discharge chamber (206), and the second discharge rubber nozzle (209) is fixedly connected to the side of the material discharge chamber (206).

4. The device for double-sided rapid negative pressure coating of aluminum plate according to claim 3, characterized in that: The negative pressure unit is composed of an exhaust port (211), an exhaust connecting pipe (212), an air duct (213), a connecting block (214), a negative pressure shell (215), an air suction nozzle (216) and a second connecting groove (217); the exhaust port (211) is fixedly connected to the side of the receiving bottom shell (105); the exhaust connecting pipe (212) is fixedly connected to the top of the exhaust port (211); the air duct (213) is fixedly connected to the side of the exhaust connecting pipe (212); the connecting block (214) is fixedly connected to the surface of the air duct (213); the negative pressure shell (215) is fixedly connected to the side of the connecting block (214); the air suction nozzle (216) is fixedly connected to the side of the negative pressure shell (215); and the second connecting groove (217) is opened inside the negative pressure shell (215).

5. The device for double-sided rapid negative pressure coating of aluminum plate according to claim 4, characterized in that: The first discharge rubber nozzle (208) and the second discharge rubber nozzle (209) are respectively attached to the surfaces of the upper coating roller (108) and the lower coating roller (109).

6. The device for double-sided rapid negative pressure coating of aluminum plate according to claim 5, characterized in that: The side surface of the negative pressure housing (215) is arc-shaped and is located to the side of the upper coating roller (108) and the lower coating roller (109).

7. The device for double-sided rapid negative pressure coating of aluminum plate according to claim 6, characterized in that: The air suction nozzle (216) is oriented between the upper coating roller (108) and the lower coating roller (109).

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