Cold-roll steel plate paint spraying device

Abstract

The utility model discloses a cold-roll steel plate paint spraying device, and relates to the technical field of cold-roll steel plate machining. The paint spraying device comprises a rack and further comprises a paint spraying box arranged in the middle of the outer side of the rack, and a conveying mechanism is arranged at the top between the two ends in the rack. According to the paint spraying device, the purification assembly is arranged on one side of the top of the paint spraying box, redundant paint mist generated by paint spraying is sucked into the purification barrel through the negative pressure fan and is filtered and captured through the paint mist filtering cotton, and meanwhile generated negative pressure can prevent the paint mist from being dissipated out from the inlet and outlet of the paint spraying box; volatile gas generated by drying and paint spraying is filtered and purified through an activated carbon filter element, so that excessive paint mist and harmful gas are prevented from losing the health of operators, the operation environment of the device is optimized, and the paint spraying machining process of the cold-rolled steel sheet is safer and more environmentally friendly. And through the first mounting sleeve, the second mounting sleeve and the third mounting sleeve, the negative pressure fan can be conveniently disassembled, repaired and maintained, and the paint mist filter cotton and the activated carbon filter element can be conveniently replaced.

Description

Technical Field

[0001] This utility model belongs to the field of cold-rolled steel plate processing technology, and in particular relates to a cold-rolled steel plate painting device. Background Technology

[0002] Cold-rolled steel sheets are steel sheets rolled at room temperature. They are widely used in automobile manufacturing, home appliances, construction, machinery manufacturing and many other fields. Cold-rolled steel sheets are easily affected by chemical, electrochemical and physical factors in the environment, which can lead to performance degradation or deterioration. Therefore, it is necessary to use a painting device to paint the surface of cold-rolled steel sheets to prevent rust and corrosion and extend their service life.

[0003] However, during the application of cold-rolled steel plate painting equipment, excess paint mist is generated, and volatile harmful gases are also produced during the drying and painting process. A single purification filter element cannot effectively filter and purify the excess paint mist and harmful gases, which leads to the paint mist and harmful gases escaping into the external environment and harming the health and safety of workers. There is a technical problem that it is not possible to effectively prevent the escape of paint mist and harmful gases and to effectively purify them. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a cold-rolled steel plate painting device, which can effectively solve the problems of the existing technology.

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

[0006] This utility model relates to a cold-rolled steel plate painting device, comprising a frame, and further comprising: a paint spraying box disposed at the middle position of the outer side of the frame; a conveying mechanism disposed at the top between the two ends of the frame; a painting mechanism disposed between the rear end of the top of the paint spraying box and its interior; an electric heating wire disposed near the bottom on one side between the two ends of the paint spraying box; a purification cylinder disposed at the middle position of one side of the top of the frame; a negative pressure fan disposed at the top of the purification cylinder; a first mounting sleeve disposed at the bottom of the inner sidewall of the purification cylinder; paint mist filter cotton disposed between the inner sides of the first mounting sleeve; a limiting plate disposed at the bottom end of the inner sidewall of the purification cylinder; a second mounting sleeve disposed near the top of the inner sidewall of the purification cylinder; an activated carbon filter element disposed between the inner sides of the second mounting sleeve; a third mounting sleeve disposed at the bottom of the negative pressure fan; and a dust removal component disposed between the bottom of one side of the purification cylinder and the bottom of one side of the paint spraying box.

[0007] Furthermore, the top and bottom of the inner sidewall of the purification cylinder are provided with internal threads, the limiting piece is annular, and the outer sides of the first mounting sleeve, the second mounting sleeve and the third mounting sleeve are provided with external threads that cooperate with the inner threads of the purification cylinder.

[0008] Furthermore, the conveying mechanism includes a conveying roller, which is rotatably connected to the top between the two ends inside the frame. A transmission sprocket is provided at the front end between the outer sides of the conveying roller. A speed-regulating motor is provided on one side of the top of the rear end of the frame. One side of the rear end of the conveying roller passes through the rear end of the frame and is connected to the output end of the speed-regulating motor.

[0009] Furthermore, the painting mechanism includes a paint tank, which is located at the middle position of the top rear end of the paint tank. A spray pump is located at the middle position of the top rear end of the paint tank. An extraction pipe is provided at the input end of the spray pump, and a delivery pipe is provided at the output end of the spray pump. A paint spray pipe is located on the other side near the bottom between the two ends inside the paint tank, and a spray nozzle is provided at the bottom end of the paint spray pipe.

[0010] Furthermore, one end of the extraction tube passes through the front end of the top of the paint tank and extends to its inner bottom end. The bottom end of the delivery tube passes through the middle position of the top of the paint spraying box and the top of the paint spraying tube and is fixedly connected. The delivery tube is connected to the paint spraying tube. Multiple sets of spray nozzles are provided at the bottom end of the paint spraying tube, and the spray nozzles are arranged at equal intervals at the bottom end of the paint spraying tube.

[0011] Furthermore, the dust removal assembly includes a suction pipe, which is located on one side of the paint spray box near the bottom. A dust conveying pipe is located at the middle of the top of the suction pipe, and a suction slot is located at the bottom of the suction pipe. The dust conveying pipe is L-shaped, and one end of the dust conveying pipe passes through one side of the purification cylinder near the bottom. The dust conveying pipe is connected to the purification cylinder and the suction pipe.

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

[0013] 1. This utility model features a purification component installed on one side of the top of the spray booth. During operation, a negative pressure fan draws excess paint mist generated during the spraying of cold-rolled steel sheets into the purification cylinder, where it is filtered and captured by paint mist filter cotton. The negative pressure also prevents paint mist from escaping from the spray booth inlet and outlet. Furthermore, an activated carbon filter element filters and purifies the volatile gases generated during the drying and spraying process, thereby preventing excess paint mist and harmful gases from harming the health of operators. This optimizes the operating environment of the device, making the cold-rolled steel sheet spraying process safer and more environmentally friendly. The first, second, and third mounting sleeves, which are threaded to the inside of the purification cylinder, facilitate the disassembly, maintenance, and replacement of the negative pressure fan, paint mist filter cotton, and activated carbon filter element, making it highly feasible.

[0014] 2. This utility model has a dust removal component installed between the bottom of one side of the purification cylinder and the bottom of one side of the paint spraying box. During use, the negative pressure air force generated by the negative pressure fan is used to remove dust from the surface of the steel plate transported to the inside of the paint spraying box through the dust suction slot. The dust is then drawn into the purification cylinder for filtration through the dust suction pipe and the dust conveying pipe, thereby preventing fine dust from adhering to the surface of the cold-rolled steel plate and affecting the adhesion of the paint layer. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 This is a side view of the structure of this utility model;

[0018] Figure 3 This is a front view cross-sectional structural diagram of the paint spray box of this utility model;

[0019] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Frame; 2. Spray booth; 3. Purification cylinder; 4. Conveyor roller; 5. Drive sprocket; 6. Negative pressure fan; 7. Spray pump; 8. Extraction pipe; 9. Paint tank; 10. Dust conveying pipe; 11. Dust suction pipe; 12. Dust suction trough; 13. Speed ​​regulating motor; 14. Electric heating wire; 15. Conveyor pipe; 16. Spray pipe; 17. Spray nozzle; 18. First mounting sleeve; 19. Limiting plate; 20. Paint mist filter cotton; 21. Second mounting sleeve; 22. Activated carbon filter element; 23. Third mounting sleeve. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Please see Figure 1-4As shown, this utility model is a cold-rolled steel plate painting device, including a frame 1, and further including: a paint spraying box 2 located at the middle position of the outer side of the frame 1; a conveying roller 4 rotatably connected to the top between the two ends inside the frame 1; a transmission sprocket 5 located at the front end between the outer sides of the conveying roller 4; a speed-regulating motor 13 located on one side of the top of the rear end of the frame 1; one side of the rear end of the conveying roller 4 passes through the rear end of the frame 1 and is connected to the output end of the speed-regulating motor 13. When painting the cold-rolled steel plate, the speed-regulating motor 13 is started to drive the conveying roller 4 connected to its output end to rotate, and at the same time, the transmission sprocket 5 drives the conveying roller 4 to rotate in the same direction, thus conveying the cold-rolled steel plate to be painted; a paint tank 9 located at the middle position of the rear end of the top of the paint spraying box 2; a spraying pump 7 located at the middle position of the rear end of the top of the paint spraying box 2; an extraction pipe 8 located at the input end of the spraying pump 7; one end of the extraction pipe 8 passes through the front end of the top of the paint tank 9 and extends to its inner bottom end. The output end of the spray pump 7 is equipped with a delivery pipe 15. Inside the paint spray box 2, on the other side near the bottom, between the two ends, a paint spray pipe 16 is installed. The bottom end of the delivery pipe 15 passes through the top of the paint spray box 2 and is fixedly connected to the middle of the top of the paint spray pipe 16. The delivery pipe 15 and the paint spray pipe 16 are connected. The bottom end of the paint spray pipe 16 is equipped with multiple sets of spray nozzles 17, arranged in an equal pattern at the bottom end of the paint spray pipe 16. The cold-rolled steel sheet is transported to the paint spraying box 2 by a spraying pump 7 through an extraction pipe 8 to extract the paint from the paint tank 9. The paint is then transported to the paint spraying pipe 16 via a conveying pipe 15 and finally atomized and sprayed onto the surface of the cold-rolled steel sheet through a spraying nozzle 17. An electric heating wire 14 is installed on one side near the bottom between the two ends inside the paint spraying box 2. When the cold-rolled steel sheet is finished being painted and transported to the inside of the paint spraying box 2, the paint layer is dried by the electric heating wire 14.

[0024] As a further implementation of this embodiment, such as Figure 1-4As shown, a purification cylinder 3 is installed at the middle position of one side of the top of the frame 1. A negative pressure fan 6 is installed at the top of the purification cylinder 3. A first mounting sleeve 18 is installed at the bottom of the inner side wall of the purification cylinder 3. Paint mist filter cotton 20 is installed between the inner sides of the first mounting sleeve 18. During the painting process, the negative pressure fan 6 draws excess paint mist into the purification cylinder 3 for filtration and capture by the paint mist filter cotton 20. The negative pressure suction generated by the negative pressure fan 6 can prevent paint mist from escaping from the inlet and outlet of the paint spray box 2. A ring-shaped limiting plate 19 is installed at the bottom of the inner side wall of the purification cylinder 3. A second mounting sleeve 21 is installed near the top of the inner side wall of the purification cylinder 3. An activated carbon filter element 22 is provided between the inner sides of the purification cylinder 3, and the volatile gases generated during the drying and painting process are filtered and purified through the activated carbon filter element 22. A third mounting sleeve 23 is provided at the bottom of the negative pressure fan 6. The top and bottom of the inner sidewall of the purification cylinder 3 are provided with internal threads. The outer sides of the first mounting sleeve 18, the second mounting sleeve 21 and the third mounting sleeve 23 are provided with external threads that cooperate with the inner threads of the purification cylinder 3. The paint mist filter cotton 20, the activated carbon filter element 22 and the negative pressure fan 6 can be positioned and installed at the bottom, near the top and the top of the inner side of the purification cylinder 3 respectively through the threaded connection. The first mounting sleeve 18 is limited by the limiting piece 19.

[0025] In use, firstly, the first mounting sleeve 18 is installed at the bottom of the inner side of the purification cylinder 3 via a threaded connection, and then fixed by the annular limiting piece 19. This positions the paint mist filter cotton 20 at the bottom of the inner side of the purification cylinder 3. Subsequently, the second mounting sleeve 21 and the third mounting sleeve 23 are installed near the top and top of the inner side of the purification cylinder 3, respectively. This positions the activated carbon filter element 22 near the top of the purification cylinder 3, and the negative pressure fan 6 is installed at its top. When the painting work is in progress, the negative pressure fan 6 installed at the top of the purification cylinder 3 is activated to draw excess paint mist into the purification cylinder 3 and utilize the space provided at its bottom. The paint mist filter cotton 20 filters and captures the paint mist. At the same time, the negative pressure suction generated by the operation of the negative pressure fan 6 prevents the paint mist from escaping from the inlet and outlet of the paint spray box 2. When the electric heating wire 14 dries the paint layer of the cold-rolled steel plate, the negative pressure fan 6 draws the volatile harmful gases generated during the drying process into the interior of the purification cylinder 3 and purifies them through the activated carbon filter element 22. After the device has been working for a long time, the negative pressure fan 6 can be disassembled and maintained by rotating the third mounting sleeve 23 in the reverse direction. The paint mist filter cotton 20 and the activated carbon filter element 22 can be disassembled and installed by rotating the first mounting sleeve 18 and the second mounting sleeve 21 in the reverse direction.

[0026] As a further implementation of this embodiment, such as Figure 1-4As shown, a dust removal assembly is provided between the bottom of one side of the purification cylinder 3 and the bottom of one side of the paint spray box 2. The dust removal assembly includes a dust suction pipe 11, which is located near the bottom of one side of the paint spray box 2. An "L"-shaped dust conveying pipe 10 is provided at the middle of the top of the dust suction pipe 11. One end of the dust conveying pipe 10 passes through the bottom of one side of the purification cylinder 3 and is connected to the purification cylinder 3 and the dust suction pipe 11. A dust suction slot 12 is provided at the bottom of the dust suction pipe 11. When the negative pressure fan 6 is running, the negative pressure suction force generated can draw in air through the dust suction slot 12 and pass through the dust conveying pipe 10 and the dust suction pipe 11 into the purification cylinder 3. Then, the dust suction slot 12 is used to remove dust from the surface of the cold-rolled steel plate that is conveyed to the paint spray box 2 by the conveying roller 4.

[0027] When in use, the negative pressure fan 6 installed at the top of the purification cylinder 3 generates negative pressure airflow through the dust suction slot 12 installed at the bottom of the dust suction pipe 11 to remove dust from the surface of the cold-rolled steel plate that has been conveyed to the inside of the paint spray box 2 by the conveying roller 4. After the dust is sucked away by the dust suction slot 12, it is then drawn into the purification cylinder 3 for filtration through the dust suction pipe 11 installed near the bottom on one side of the paint spray box 2 and the "L"-shaped dust conveying pipe 10.

[0028] Working principle: When using the cold-rolled steel plate painting device, the speed-regulating motor 13 is started to drive the conveyor roller 4 connected to its output end to rotate. At the same time, the transmission sprocket 5 drives the conveyor roller 4 to rotate in the same direction, thus conveying the cold-rolled steel plate to be painted onto the conveyor roller 4 into the paint spraying box 2. Simultaneously, the negative pressure fan 6 is started to generate negative pressure airflow that sucks away dust from the surface of the cold-rolled steel plate through the dust suction slot 12. The dust is then drawn into the purification cylinder 3 for filtration through the dust suction pipe 11 and the dust conveying pipe 10. After the cold-rolled steel plate is conveyed into the paint spraying box 2, the paint pump 7 extracts the paint from the paint tank 9 through the extraction pipe 8, and the paint is then conveyed through the conveying pipe 15. The paint mist is conveyed into the spray pipe 16 and finally atomized and sprayed onto the surface of the cold-rolled steel plate through the spray nozzle 17. At the same time, the negative pressure fan 6 draws the excess paint mist into the purification cylinder 3, where the paint mist filter cotton 20 filters and captures the paint mist. Meanwhile, the negative pressure suction generated by the operation of the negative pressure fan 6 prevents the paint mist from escaping from the inlet and outlet of the spray box 2. When the cold-rolled steel plate is finished painting and conveyed to one side of the inside of the spray box 2, the paint layer is dried by the electric heating wire 14. The volatile harmful gases generated during drying are drawn into the inside of the purification cylinder 3 by the negative pressure fan 6 again and adsorbed and purified by the activated carbon filter element 22, thus carrying out a safe, environmentally friendly and efficient cold-rolled steel plate painting operation.

[0029] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A cold-rolled steel sheet paint spraying device comprising a frame (1), characterized in that, Also include: The middle position of the outside of the rack (1) is provided with a paint spraying box (2), the top between the two ends of the inside of the rack (1) is provided with a conveying mechanism, the rear end and the inside of the top of the paint spraying box (2) is provided with a paint spraying mechanism, the inside of the paint spraying box (2) is provided with an electric heating wire (14) at the position close to the bottom on one side between the two ends, the middle position of the top of the rack (1) is provided with a purification cylinder (3), the top of the purification cylinder (3) is provided with a negative pressure fan (6), the bottom of the inside of the side wall of the purification cylinder (3) is provided with a first mounting sleeve (18), the inside of the first mounting sleeve (18) is provided with a paint mist filter cotton (20), the bottom end of the inside of the side wall of the purification cylinder (3) is provided with a limiting piece (19), the inside of the side wall of the purification cylinder (3) is provided with a second mounting sleeve (21) close to the top, the inside of the second mounting sleeve (21) is provided with an activated carbon filter element (22), the bottom of the negative pressure fan (6) is provided with a third mounting sleeve (23), and the bottom of one side of the purification cylinder (3) and the bottom of one side of the paint spraying box (2) are provided with a dust removal assembly.

2. A cold rolled steel sheet paint spraying device according to claim 1, characterized in that, The top and bottom of the inside of the side wall of the purification cylinder (3) is provided with internal threads, the limiting piece (19) is annular, and the outside of the first mounting sleeve (18), the second mounting sleeve (21) and the third mounting sleeve (23) is provided with external threads matched with the internal threads of the inside of the purification cylinder (3).

3. A cold rolled steel sheet paint spraying device according to claim 1, wherein The conveying mechanism comprises a conveying roller (4), the conveying roller (4) is rotatably connected to the top between the two ends of the inside of the rack (1), the front end between the outside of the conveying roller (4) is provided with a transmission sprocket (5), one side of the top of the rear end of the rack (1) is provided with a speed regulating motor (13), and one side of the rear end of the conveying roller (4) penetrates through the rear end of the rack (1) and is connected with the output end of the speed regulating motor (13).

4. A cold rolled steel sheet paint spraying device according to claim 1, wherein The paint spraying mechanism comprises a paint tank (9), the paint tank (9) is arranged at the middle position of the top rear end of the paint spraying box (2), the middle position of the top rear end of the paint spraying box (2) is provided with a spraying pump (7), the input end of the spraying pump (7) is provided with a suction pipe (8), the output end of the spraying pump (7) is provided with a conveying pipe (15), the other side close to the bottom between the two ends of the inside of the paint spraying box (2) is provided with a paint spraying pipe (16), and the bottom end of the paint spraying pipe (16) is provided with a spraying port (17).

5. A cold rolled steel sheet paint spraying device according to claim 4, wherein One end of the suction pipe (8) penetrates through the front end of the top of the paint tank (9) and extends to the inside bottom end thereof, the bottom end of the conveying pipe (15) penetrates through the top of the paint spraying box (2) and is fixedly connected to the middle position of the top of the paint spraying pipe (16), the conveying pipe (15) is communicated with the paint spraying pipe (16), a plurality of groups of the spraying ports (17) are arranged at the bottom end of the paint spraying pipe (16), and the spraying ports (17) are arranged at equal intervals at the bottom end of the paint spraying pipe (16).

6. A cold rolled steel sheet paint spraying device according to claim 1, wherein The dust removing assembly comprises a dust suction pipe (11) arranged at a position close to the bottom on one side of a paint spraying box (2), a dust conveying pipe (10) arranged at a middle position on the top of the dust suction pipe (11), a dust suction slot (12) arranged at the bottom end of the dust suction pipe (11), the dust conveying pipe (10) is in the shape of "L", one end of the dust conveying pipe (10) penetrates through a position close to the bottom on one side of a purification cylinder (3), and the dust conveying pipe (10) is communicated with the purification cylinder (3) and the dust suction pipe (11).

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