Spraying liquid circulating system of electrical steel strip coating machine

Abstract

The utility model provides a spraying liquid circulating system of an electrical steel strip coating machine, and belongs to the technical field of spraying liquid circulating treatment. Comprising a first spraying pipe, a second spraying pipe and a supply box which are arranged on a coating machine body, the supply box is internally divided into a first coating area, a second coating area and a cleaning water area, the first coating area, the second coating area and the cleaning water area are connected with feeding pipes respectively, and the three feeding pipes are converged through a connecting pipe; the first spraying pipe and the second spraying pipe are communicated with the three feeding pipes through connecting pipes, first water pumps are arranged in the first coating area, the second coating area and the cleaning water area, a material receiving groove is further formed in the coating machine body, and the material receiving groove is communicated with the first coating area and the second coating area through two backflow pipes. Second water pumps and filters are arranged on the two backflow pipes, a waste discharge pipe is arranged at the bottom of the material receiving groove, and valves are arranged on the waste discharge pipe and the three material supply pipes. And the effect of reducing the labor intensity of workers is achieved.

Description

Technical Field

[0001] This utility model relates to the field of spraying liquid circulation treatment technology, and in particular to a spraying liquid circulation system for an electrical steel strip coating machine. Background Technology

[0002] Steel strip, also known as strip steel, is a narrow and long steel plate produced by various steel rolling enterprises to meet the needs of different industrial sectors for the industrialized production of various metal or mechanical products. Electrical steel strip is a commonly used production steel strip. In some processing workshops, different types of mechanical products need to be processed and produced in batches. Therefore, it is necessary to coat the electrical steel strip with appropriate coatings according to process requirements.

[0003] Patent CN219463909U discloses a magnesium oxide coating device for oriented silicon steel, including a pair of rotatable coating rollers arranged vertically, a paint receiving tank located below the coating rollers, and a spraying device for spraying coating liquid onto the upper coating roller. A gap is formed between the two coating rollers for the steel strip to pass through. It also includes a pair of rotatable leveling rollers arranged vertically, which are used to roll and press against the upper and lower surfaces of the steel strip passing through the gap. The spraying device includes a coating liquid storage tank, a spraying pipe connected to the coating liquid storage tank, and multiple spraying heads connected to the spraying pipe. The spraying heads are used to spray the coating liquid onto the upper coating roller.

[0004] However, the aforementioned patent only allows for the spraying of one type of coating. When switching to spraying other types of coatings, workers need to manually clean the coating liquid storage tank, spray pipe, spray head, and coating receiving tank, and then fill in new coatings before continuing the spraying operation, which results in high labor intensity. Utility Model Content

[0005] In view of the above problems, this utility model provides a spraying liquid circulation system for an electrical steel strip coating machine.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0007] A coating fluid circulation system for an electrical steel strip coating machine is provided, applied to the main body of the coating machine. It includes a first spray pipe, a second spray pipe, and a supply box mounted on the main body of the coating machine. The supply box is divided into a first coating zone, a second coating zone, and a cleaning water zone. Each of the three zones is connected to a feed pipe, and the three feed pipes converge through a connecting pipe. The first and second spray pipes are connected to the three feed pipes via the connecting pipe. Each of the three zones is equipped with a first water pump. The main body of the coating machine also has a receiving trough, which is connected to the first and second coating zones via two return pipes. Each of the two return pipes is equipped with a second water pump and a filter. A waste discharge pipe is located at the bottom of the receiving trough, and valves are installed on the waste discharge pipe and the three feed pipes.

[0008] Furthermore, the filter includes a connecting cylinder and a filter cloth. The return pipe is broken into two sections. The two ends of the connecting cylinder are respectively connected to the outer walls of the two sections of the return pipe. The filter cloth is wrapped around the break of one section of the return pipe and presses against the inner wall of the connecting cylinder. A sealing element is provided on the outer wall of the break of the other section of the return pipe.

[0009] Furthermore, one end of the connecting cylinder is threaded to the outer wall of the reflux pipe break wrapped in filter cloth, and the other end of the connecting cylinder is movably sleeved at the break of another section of reflux pipe.

[0010] Furthermore, the sealing element includes a sealing ring and an abutment ring. The sealing ring is coaxially fixed on the outer wall at the corresponding reflux pipe break, and the abutment ring is fixed on the inner wall of the end of the connecting cylinder away from the thread. The outer wall of the sealing ring is a conical surface, and the inner wall of the abutment ring is in movable contact with the conical outer wall of the sealing ring.

[0011] Furthermore, a sealing ring is provided on the outer wall of the sealing ring for pressing contact with the inner wall of the abutment ring.

[0012] Furthermore, the end of the return pipe away from the supply box extends from the top of the receiving trough into the receiving trough, leaving a gap between it and the bottom wall of the receiving trough.

[0013] The beneficial effects of this utility model are as follows: When switching to use the paint in the second paint zone, the operator needs to first close the valve on the supply pipe corresponding to the first paint zone; then open the valve on the supply pipe corresponding to the cleaning water zone to clean the connecting pipe, the first spray pipe, the second spray pipe, the two coating rollers, and the inside of the receiving trough. During cleaning, waste liquid can be discharged through the waste discharge pipe; finally, open the valve on the supply pipe corresponding to the second paint zone to spray the paint in the second paint zone onto the two coating rollers. When switching to use paint, the operator does not need to manually clean the connecting pipe, the first spray pipe, the second spray pipe, the two coating rollers, and the inside of the receiving trough, nor does the operator need to manually fill in new paint, which reduces the labor intensity of the operator. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the spraying liquid circulation system of an electrical steel strip coating machine according to an embodiment of this application.

[0015] Figure 2 This is a schematic diagram of another perspective of the spraying liquid circulation system of an electrical steel strip coating machine according to an embodiment of this application.

[0016] Figure 3 This is a schematic diagram of the filter structure of a spraying liquid circulation system for an electrical steel strip coating machine, according to an embodiment of this application.

[0017] The components include: 1. Coating machine body; 2. First spray pipe; 3. Second spray pipe; 4. Supply box; 41. First coating area; 42. Second coating area; 43. Cleaning water area; 5. Feed pipe; 6. Connecting pipe; 7. Receiving trough; 8. Return pipe; 9. Second water pump; 10. Filter; 101. Connecting cylinder; 102. Filter cloth; 20. Waste discharge pipe; 30. Valve; 40. Seal; 401. Sealing ring; 402. Abutment ring; 50. Sealing ring. Detailed Implementation

[0018] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0019] This application discloses a spraying liquid circulation system for an electrical steel strip coating machine, referring to... Figure 1 , Figure 2 and Figure 3 The coating machine includes a first spray pipe 2, a second spray pipe 3, and a supply box 4 mounted on the main body 1. The supply box 4 is divided into a first paint zone 41, a second paint zone 42, and a cleaning water zone 43. The first paint zone 41, the second paint zone 42, and the cleaning water zone 43 are each connected to a supply pipe 5. The three supply pipes 5 converge through a connecting pipe 6. The first spray pipe 2 and the second spray pipe 3 are connected to the three supply pipes 5 via the connecting pipe 6. A first water pump is installed in each of the first paint zone 41, the second paint zone 42, and the cleaning water zone 43. A receiving trough 7 is also mounted on the main body 1. The receiving trough 7 is connected to the first paint zone 41 and the second paint zone 42 via two return pipes 8. A second water pump 9 and a filter 10 are installed on each of the two return pipes 8. A waste discharge pipe 20 is installed at the bottom of the receiving trough 7. Valves 30 are installed on the waste discharge pipe 20 and the three supply pipes 5.

[0020] In this embodiment, two coating rollers are rotatably mounted on the coating machine body 1. Opening the valve 30 on the feed pipe 5 corresponding to the first coating zone 41 allows the coating material to be sprayed onto the nozzles on the outer walls of the two coating rollers via the first spray pipe 2 and the second spray pipe 3, enabling the two coating rollers to coat both sides of the steel strip. The sprayed coating material falls into the receiving trough 7 and is then recovered back into the first coating zone 41 via the corresponding return pipe 8. When switching to the coating material in the second coating zone 42, the operator must first close the valve 30 on the feed pipe 5 corresponding to the first coating zone 41; then open the valve 30 on the feed pipe 5 corresponding to the cleaning water zone 43 to clean the connecting pipe 6, the first spray pipe 2, the second spray pipe 3, the two coating rollers, and the inside of the receiving trough 7. During cleaning, waste liquid is discharged through the waste discharge pipe 20; finally, opening the valve 30 on the feed pipe 5 corresponding to the second coating zone 42 allows the coating material in the second coating zone 42 to be sprayed onto the two coating rollers. The coating liquid circulation system of the electrical steel strip coating machine disclosed in this application eliminates the need for manual cleaning of the connecting pipe 6, the first spray pipe 2, the second spray pipe 3, the two coating rollers and the receiving trough 7 when switching coatings, and also eliminates the need for manual filling of new coatings, thus reducing the labor intensity of the workers.

[0021] In addition, the paint in the receiving tank 7 can be recycled to the corresponding paint area through the return pipe 8, which saves resources. During the recycling process, impurities in the paint can also be filtered out through the filter 10.

[0022] Specifically, the filter 10 includes a connecting cylinder 101 and a filter cloth 102. The return pipe 8 is broken into two sections, and the two ends of the connecting cylinder 101 are respectively connected to the outer walls of the two sections of the return pipe 8. The filter cloth 102 is wrapped around the break of one section of the return pipe 8 and is pressed into contact with the inner wall of the connecting cylinder 101. A sealing element 40 is provided on the outer wall of the break of the other section of the return pipe 8.

[0023] In this embodiment, the connecting cylinder 101 is connected between two sections of return pipe 8, thus connecting the two sections of return pipe 8. Impurities in the recovered paint can be filtered through the filter cloth 102. After the paint recovery is complete, the staff removes the connecting cylinder 101, and then takes out the filter cloth 102 for cleaning.

[0024] Furthermore, one end of the connecting cylinder 101 is threadedly connected to the outer wall of the break of the return pipe 8 wrapped by the filter cloth 102, and the other end of the connecting cylinder 101 is movably sleeved at the break of another section of the return pipe 8.

[0025] In this embodiment, when the operator rotates the connecting cylinder 101 and makes it threadedly connected to the outer wall of the break of the return pipe 8, since the filter cloth 102 is disposed between the inner wall of the connecting cylinder 101 and the outer wall of the break of the return pipe 8, it can not only play a filtering role, but also improve the sealing between the connecting cylinder 101 and the return pipe 8.

[0026] Specifically, the sealing element 40 includes a sealing ring 401 and an abutment ring 402. The sealing ring 401 is coaxially and integrally fixed on the outer wall of the corresponding break in the return pipe 8, and the abutment ring 402 is integrally fixed on the inner wall of the end of the connecting cylinder 101 away from the thread. The outer wall of the sealing ring 401 is a conical surface, and the inner wall of the abutment ring 402 movably abuts against the conical outer wall of the sealing ring 401.

[0027] In this embodiment, when the operator rotates the connecting cylinder 101 and makes it threadedly connected to the outer wall of the break of the return pipe 8, the abutment ring 402 can move with the connecting cylinder 101 until it abuts the conical outer wall of the sealing ring 401.

[0028] To improve the sealing performance between the sealing ring 401 and the abutment ring 402, a sealing ring 50 is provided on the outer wall of the sealing ring 401 for pressing against the inner wall of the abutment ring 402. The sealing ring 50 is made of rubber material.

[0029] To prevent different coatings from accumulating in different return pipes 8, the end of the return pipe 8 away from the supply box 4 extends from the top of the receiving trough 7 into the receiving trough 7, and a gap is left between it and the bottom wall of the receiving trough 7.

[0030] The implementation principle of the coating liquid circulation system for an electrical steel strip coating machine according to an embodiment of this application is as follows: Opening the valve 30 on the supply pipe 5 corresponding to the first coating zone 41 allows the coating liquid to be sprayed onto the nozzles on the outer walls of the two coating rollers through the first spray pipe 2 and the second spray pipe 3, enabling the two coating rollers to coat both sides of the steel strip. The sprayed coating liquid falls into the receiving trough 7 and is then recycled back to the first coating zone 41 through the corresponding return pipe 8. When switching to the coating liquid in the second coating zone 42, the operator must first close the valve 30 on the supply pipe 5 corresponding to the first coating zone 41; then open the valve 30 on the supply pipe 5 corresponding to the cleaning water zone 43 to clean the connecting pipe 6, the first spray pipe 2, the second spray pipe 3, the two coating rollers, and the inside of the receiving trough 7. During cleaning, waste liquid is discharged through the waste discharge pipe 20; finally, opening the valve 30 on the supply pipe 5 corresponding to the second coating zone 42 allows the coating liquid in the second coating zone 42 to be sprayed onto the two coating rollers. When switching between different paint types, there is no need for staff to manually clean the inside of the connecting pipe 6, the first spray pipe 2, the second spray pipe 3, the two coating rollers, and the receiving trough 7, nor is it necessary to manually fill in new paint, which reduces the labor intensity of staff.

[0031] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they understand the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and modifications.

Claims

1. A spraying liquid circulation system for an electrical steel strip coating machine, applied to the main body (1) of the coating machine, characterized in that: The coating machine includes a first spray pipe (2), a second spray pipe (3), and a supply box (4) mounted on the main body (1). The supply box (4) is divided into a first paint zone (41), a second paint zone (42), and a cleaning water zone (43). The first paint zone (41), the second paint zone (42), and the cleaning water zone (43) are each connected to a feed pipe (5). The three feed pipes (5) converge through a connecting pipe (6). The first spray pipe (2) and the second spray pipe (3) are connected to the three feed pipes (5) through the connecting pipe (6). The first coating area (41), the second coating area (42) and the cleaning water area (43) are each equipped with a first water pump. The coating machine body (1) is also equipped with a receiving trough (7). The receiving trough (7) is connected to the first coating area (41) and the second coating area (42) through two return pipes (8). The two return pipes (8) are equipped with a second water pump (9) and a filter (10). The bottom of the receiving trough (7) is equipped with a waste discharge pipe (20). The waste discharge pipe (20) and the three supply pipes (5) are all equipped with valves (30).

2. The coating fluid circulation system for an electrical steel strip coating machine according to claim 1, characterized in that: The filter (10) includes a connecting cylinder (101) and a filter cloth (102). The return pipe (8) is broken into two sections. The two ends of the connecting cylinder (101) are respectively connected to the outer walls of the two sections of the return pipe (8). The filter cloth (102) is wrapped around the break of one section of the return pipe (8) and is pressed against the inner wall of the connecting cylinder (101). A sealing element (40) is provided on the outer wall of the break of the other section of the return pipe (8).

3. The coating fluid circulation system for an electrical steel strip coating machine according to claim 2, characterized in that: One end of the connecting cylinder (101) is threaded to the outer wall of the break of the return pipe (8) wrapped by the filter cloth (102), and the other end of the connecting cylinder (101) is movably sleeved at the break of another section of the return pipe (8).

4. The coating fluid circulation system for an electrical steel strip coating machine according to claim 3, characterized in that: The sealing element (40) includes a sealing ring (401) and an abutment ring (402). The sealing ring (401) is coaxially fixed on the outer wall of the corresponding reflux pipe (8) break. The abutment ring (402) is fixed on the inner wall of the end of the connecting cylinder (101) away from the thread. The outer wall of the sealing ring (401) is a conical surface. The inner wall of the abutment ring (402) is in movable contact with the conical outer wall of the sealing ring (401).

5. The coating fluid circulation system for an electrical steel strip coating machine according to claim 4, characterized in that: The outer wall of the sealing ring (401) is provided with a sealing ring (50) for pressing and contacting the inner wall of the abutment ring (402).

6. The coating fluid circulation system for an electrical steel strip coating machine according to claim 1, characterized in that: The end of the return pipe (8) away from the supply box (4) extends from the top of the receiving trough (7) into the receiving trough (7), and there is a gap between it and the bottom wall of the receiving trough (7).

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