A cleaning device for a powder spraying booth

Abstract

The present application provides a cleaning device for a powder spraying booth, belonging to the technical field of spraying and cleaning. It includes a housing, a collection bin, and a material suction mechanism for sucking and collecting the fallen powder. A pair of grid plates are symmetrically arranged at the front and rear ends inside the housing. A guide rod is connected below the grid plate. A guide groove for the guide rod to slide is provided on the housing, and the bottom of the guide rod and the guide groove are connected by a compression spring. A plurality of baffles are arranged side by side below the grid plate, and the outer end of the inner baffle is located below the adjacent outer baffle. The weight of the end of the baffle far from the center of the housing is greater. The workpiece to be processed is suspended between the two grid plates. In the present application, when spraying, the grid plate on the front side of the spraying direction is communicated with the collection bin, while the grid plate where the operator stands is separated from the collection bin. Thus, it can not only adapt to the trajectory of the powder falling, facilitate the collection of the fallen powder, but also reduce the amount of powder that directly falls without contacting the workpiece, improving the utilization rate of the powder.

Description

Technical Field

[0001] This application relates to the technical field of spraying and cleaning, and particularly relates to a cleaning device for a powder spraying booth. Background Art

[0002] A powder spraying booth is a special facility for the painting process, mainly used for spraying powder coatings. The powder spraying booth can reduce the impact of external pollutants on the painting quality and can reduce the volatilization of powder coatings and the pollution of the environment by dust. During the spraying process, in order to prevent cross-contamination, maintain equipment performance, improve safety, and extend the service life of the equipment, etc., the powder spraying booth is usually cleaned.

[0003] In spraying production, some of the sprayed powder materials will fall on the floor of the powder spraying booth. Some manufacturers will clean the powder spraying booth separately after the spraying is completed. However, the staff participating in the spraying will walk back and forth during the spraying process and trample on the powder materials. On the one hand, the powder materials are easily carried out of the powder spraying booth and pollute other areas. On the other hand, the powder materials will agglomerate after being trampled, increasing the cleaning difficulty. Referring to the Chinese patent document with the publication number CN111871671B and the name of a powder spraying booth, in this patent, there is a powder booth main body. The front side wall and the rear side wall of the powder booth main body are respectively provided with an inlet and an outlet for the workpiece to be powder-sprayed to pass through. The top wall of the powder booth main body is provided with a slot, and the hanging chain for hanging the workpiece to be powder-sprayed passes through the slot. The powder booth main body includes an automatic spraying chamber. The lower part of the automatic spraying chamber is provided with a powder recovery port, and the powder recovery port is connected with a suction fan. During operation, first, the automatic spraying mechanism sprays the workpiece, and then the staff simultaneously performs supplementary spraying on the workpiece at both side doors of the powder spraying booth.

[0004] Referring to the above technical solution, the above can only spray small workpieces. For large and complex-structured workpieces, the supplementary spraying effect of the above solution is not good. A powder spraying booth that can allow the staff to enter the powder spraying booth and move on both sides is still needed to complete the spraying of the workpiece. Moreover, during the spraying process of the above solution, the sprayed powder materials will also fall to the powder recovery port under the action of the blower during the process of spraying towards the workpiece to be processed. Therefore, more powder materials need to be sprayed to complete the spraying of the workpiece, reducing the utilization rate of the powder materials. Summary of the Invention

[0005] In order to improve the spraying effect on large and complex-structured workpieces and improve the utilization rate of powder materials, this application provides a cleaning device for a powder spraying booth.

[0006] The present application provides a cleaning device for a powder spraying booth, which adopts the following technical solutions. It includes a housing, a grid plate is arranged below the housing, and a collection bin is located below the grid plate inside the housing. A material suction mechanism for sucking and collecting the fallen powder is arranged on one side of the housing. A pair of grid plates are symmetrically arranged and are respectively arranged on the front and rear sides inside the housing. A guide rod is fixedly connected below each grid plate, and a guide groove for the guide rod to slide is formed on the housing. A compression spring is connected between the bottom of each guide rod and the bottom wall of the guide groove. A plurality of baffle plates are hinged side by side in the front-rear direction below each grid plate. The baffle plates below the pair of grid plates are symmetrically arranged. The outer side of the baffle plate closer to the center of the housing is located below the adjacent outer baffle plate. The baffle plates below one grid plate can cooperate to partition the grid plate and the collection bin. The weight of one end of each baffle plate away from the center of the housing is greater than that of the end closer to the center. During production, the workpiece to be processed is suspended between the two grid plates.

[0007] By adopting the above technical solutions, during the spraying process, the operator stands on one grid plate to spray the workpiece. The corresponding grid plate moves downward under the gravity of the operator, and the compression spring is compressed. The movement of the grid plate pushes the baffle plate to rotate, and the baffle plate partitions the upper and lower sides. At the same time, the powder that is not sprayed on the workpiece will fall on the grid plate where the operator does not stand under the action of gravity. Under the action of the material suction mechanism, the powder is collected by the material suction mechanism through the holes on the grid plate where the operator does not stand and the collection bin. When the operator moves to another grid plate, the grid plate that has been left moves upward under the restoring force of the compression spring, and the end of the baffle plate away from the center rotates downward under the action of gravity, and the upper and lower sides of the baffle plate are communicated.

[0008] The present application can facilitate the spraying of large and complex-structured workpieces, ensure the spraying effect of the workpieces, and ensure more uniform spraying color difference through single-person spraying. When the operator is spraying, the grid plate located in the front side of the spraying direction can be communicated with the collection bin, while the grid plate where the operator stands can be partitioned from the collection bin. Thus, it can not only adapt to the trajectory of the powder falling, facilitate the collection of the powder, but also reduce the amount of powder that directly falls without contacting the workpiece, and improve the utilization rate of the powder.

[0009] Optionally, the left and right side walls of the collection bin are both inclined.

[0010] By adopting the above technical solutions, the inclined arrangement of the side walls of the collection bin can guide the powder falling from the grid plate, so that the powder is gathered in the middle part of the collection bin, which facilitates the subsequent collection of the powder.

[0011] Optionally, a plurality of connecting ropes are distributed in an array on the side of the bottom wall of the baffle plate away from the center of the housing, and a vibration ball is fixedly connected to the lower end of the connecting rope.

[0012] By adopting the above technical solution, when the end of the baffle far from the center rotates downward under the action of gravity, the rotation of the baffle drives the connecting rope and the vibration ball to move downward, and the vibration ball knocks on the inner wall of the collection bin, causing the powder adhered to the inner wall of the collection bin to fall, thereby improving the collection effect of the powder.

[0013] Optionally, a connecting plate is hinged between the two grid plates in the housing, and the front and rear ends of the connecting plate are respectively located below a pair of grid plates and abut against the grid plates.

[0014] By adopting the above technical solution, the connecting plate can rotate under the movement of the grid plates, so as to connect between the two grid plates, reducing the risk of steps appearing between the grid plates and being beneficial to improving the safety of the operating environment.

[0015] Optionally, the material suction mechanism includes a discharge port opened at the rear side of the housing, the discharge port is communicated with the collection bin, and the discharge port is communicated with a negative pressure source.

[0016] Optionally, a pushing mechanism is arranged in the collection bin, and the pushing mechanism is used for pushing the powder at the bottom of the collection bin; the pushing mechanism includes a moving plate arranged at the inner bottom of the collection bin, the moving plate is slidably connected with the side wall of the collection bin, a plurality of pairs of push plates are uniformly arranged in an array at the bottom of the moving plate, the front end of each push plate is hinged on the moving plate, and a driving component is arranged on the connecting plate, and the driving component is used for driving the push plates to reciprocate in the front-rear direction.

[0017] By adopting the above technical solution, during use, the driving component drives the moving plate to reciprocate in the front-rear direction. When the moving plate moves backward in the direction close to the discharge port, the movement of the moving plate drives the push plates to move. Each pair of push plates is blocked by the powder and opens to push the powder. When the moving plate moves forward and moves in the direction away from the discharge port, the movement of the moving plate drives the push plates to move, and each pair of push plates rotates and closes in the direction of approaching each other.

[0018] Optionally, the driving component includes a first connecting rod hinged on the bottom wall of the connecting plate, the first connecting rod is located at the rear side of the hinged position of the connecting plate and the housing, the end of the first connecting rod far from the connecting plate is hinged with a second connecting rod, a connecting seat is vertically arranged on the upper side wall of the moving plate, and the end of the connecting seat far from the moving plate is hinged with the end of the second connecting rod far from the first connecting rod.

[0019] By adopting the above technical solution, when the grid plate at the rear side moves downward to drive the connecting plate to rotate, the rotation of the connecting plate drives the first connecting rod and the second connecting rod to rotate, and drives the moving plate to move backward. When the grid plate at the front side moves downward to drive the connecting plate to rotate, the rotation of the connecting plate drives the first connecting rod and the second connecting rod to rotate, and drives the moving plate to move forward and reset.

[0020] Optionally, the moving plate is provided with the same number of blocking rods corresponding to each pair of pushing plates. Each blocking rod is fixedly connected to the moving plate and is located between a pair of pushing plates.

[0021] By adopting the above technical solution, the setting of the blocking rods can limit the minimum angle at which a pair of pushing plates close, reducing the risk that a pair of pushing plates close completely and cannot be opened.

[0022] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0023] 1. In the present application, when an operator is spraying, the grid plate located on the front side of the spraying direction can communicate with the collection bin, while the grid plate where the operator stands can be separated from the collection bin. Thus, it can not only adapt to the trajectory of the powder falling, facilitating the collection of the powder, but also reduce the amount of powder that directly falls without contacting the workpiece, improving the utilization rate of the powder.

[0024] 2. Through the setting of the connecting rope and the vibration ball, when the grid plate moves upward, the end of the baffle away from the center of the housing can rotate downward, and the vibration ball can knock on the inner wall of the collection bin, causing the powder adhering to the inner wall of the collection bin to fall, thereby improving the collection effect of the powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application;

[0026] Figure 2 is a schematic diagram of the structure of the connecting plate in an embodiment of the present application;

[0027] Figure 3 is a schematic diagram of the structure of the collection bin in an embodiment of the present application;

[0028] Figure 4 is a schematic diagram of the structure of the pushing mechanism in an embodiment of the present application;

[0029] Figure 5 is an embodiment of the present application Figure 2 is a partial enlarged view of area A in the embodiment;

[0030] Figure 6 is a schematic diagram of the structure of the pushing plate and the blocking rod in an embodiment of the present application;

[0031] Figure 7 is a partial structural schematic diagram of the collection bin and the moving plate in an embodiment of the present application;

[0032] Figure 8 is a schematic diagram of the structure when the moving plate moves away from the discharge port in an embodiment of the present application;

[0033] Figure 9This is a schematic structural diagram of the moving plate moving towards the discharge port in the embodiment of the present application.

[0034] Explanation of reference numerals: 1. Housing; 11. Collection bin; 12. Guide groove; 13. Discharge port; 2. Grid plate; 21. Guide rod; 22. Compression spring; 3. Baffle; 31. Connecting rope; 4. Connecting plate; 5. Pushing mechanism; 51. Moving plate; 52. Pushing plate; 53. Driving assembly; 531. First connecting rod; 532. Second connecting rod; 533. Connecting seat; 6. Stop rod. Detailed implementation manners

[0035] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below in conjunction with the Figures 1 - 6 of the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present application fall within the scope of protection of the present application.

[0036] Referring to Figure 1 and Figure 2 , a cleaning device for a powder spraying booth includes a housing 1 and a cleaning module. The housing 1 is arranged on a horizontal plane, the interior of the housing 1 is a spraying area, there are two cleaning modules, the two cleaning modules are respectively arranged on the left and right sides inside the housing 1, and the structures of the two cleaning modules are symmetrically arranged. The cleaning module is used to clean the housing 1.

[0037] Referring to Figure 2 , Figure 3 and Figure 4 , the cleaning module includes a pair of grid plates 2, a material suction mechanism and a control mechanism. A pair of grid plates 2 are respectively arranged on the front and rear sides inside the housing 1 and are symmetrically arranged, and are used to support the operator. A collection bin 11 is arranged below each pair of grid plates 2 inside the housing 1. The left and right side walls of the collection bin 11 are inclined. A connecting plate 4 is hinged between each pair of grid plates 2 inside the housing 1. The central axis of the hinge of the connecting plate 4 extends in the left-right direction. The front and rear ends of the connecting plate 4 are respectively located below the two grid plates 2 and are in contact with the grid plates 2. During production, the workpiece to be processed is suspended between the two grid plates 2 and above the connecting plate 4; the material suction mechanism is arranged at the rear side of the housing 1 and is used to suck and collect the fallen powder; the control mechanism is arranged inside the housing 1 and is used to cut off the connection between the grid plate 2 and the collection bin 11 below when the operator stands on one grid plate 2.

[0038] Referring to Figure 3, The material suction mechanism includes a discharge port 13 and a negative pressure source. The discharge port 13 is opened at the rear side of the housing 1 and can communicate with the collection bin 11. The negative pressure source can suck air into the collection bin 11 through the discharge port 13. The negative pressure source can be a suction fan or the like.

[0039] Refer to Figure 4 and Figure 5 , The control mechanism includes baffle plates 3. The baffle plates 3 are arranged below the grid plates 2 and there are multiple baffle plates 3. Each baffle plate 3 is hinged on the inner side wall of the housing 1 and the hinge center extends in the left-right direction. The baffle plates 3 located below a pair of grid plates 2 are symmetrically arranged about the center of the housing 1. The baffle plates 3 below each grid plate 2 are arranged side by side and the outer side of the baffle plate 3 close to the center of the housing 1 is located below the adjacent outer baffle plate 3. The weight of one end of each baffle plate 3 far from the center of the housing 1 is greater than the weight of the end close to the center. Among them, guide rods 21 can be fixedly connected to the four corners or two corners below the grid plates 2. Guide grooves 12 for the guide rods 21 to slide are opened on the housing 1, and a compression spring 22 is connected between the bottom of each guide rod 21 and the bottom wall of the guide groove 12; in order to save space, a placement groove can also be opened at the bottom of the guide rod 21, and the two ends of the compression spring 22 are respectively fixedly connected to the top wall of the placement groove and the bottom wall of the guide groove 12.

[0040] During the spraying process, the operator stands on one grid plate 2 to spray the workpiece. The corresponding grid plate 2 moves downward under the gravity of the operator and compresses the compression spring 22. The movement of the grid plate 2 pushes the baffle plate 3 to rotate. The baffle plate 3 separates the upper and lower sides. At the same time, the powder that is not sprayed on the workpiece will fall on the grid plate 2 where the operator does not stand under the action of gravity. Under the action of the material suction mechanism, the powder is collected by the material suction mechanism through the holes on the grid plate 2 where the operator does not stand and the collection bin 11; when the operator moves to another grid plate 2, the grid plate 2 that is left moves upward under the restoring force of the compression spring 22, and one end of the baffle plate 3 far from the center rotates downward under the action of gravity, and the upper and lower sides of the baffle plate 3 are communicated.

[0041] In this application, when the operator is spraying, the grid plate 2 located in the front side of the spraying direction can communicate with the collection bin 11, while the grid plate 2 on which the operator stands can be separated from the collection bin 11. Thus, it can not only adapt to the trajectory of the powder falling, facilitate the collection of the powder, but also reduce the amount of powder that directly falls without contacting the workpiece, and improve the utilization rate of the powder.

[0042] Refer to Figure 4 , A cleaning device for a powder spraying room includes connecting ropes 31 and vibration balls. A plurality of connecting ropes 31 are arrayed on the bottom wall of each baffle plate 3 on the side far from the center of the housing 1. A plurality of vibration balls are provided corresponding to the connecting ropes 31, and each vibration ball is fixedly connected to the lower end of a connecting rope 31 and can contact the inner side wall of the housing 1.

[0043] When the end of the baffle 3 away from the center rotates downward under the action of gravity, the rotation of the baffle 3 drives the connecting rope 31 and the vibrating ball to move downward, and the vibrating ball knocks on the inner wall of the collecting bin 11, and the powder adhered to the inner wall of the collecting bin 11 falls off, thereby improving the collection effect of the powder.

[0044] Refer to Figure 4 and Figure 6 , a cleaning device for a powder spraying booth includes a pushing mechanism 5. A pushing mechanism 5 is provided in each collecting bin 11, and the pushing mechanism 5 is used to push the powder at the bottom of the collecting bin 11.

[0045] Refer to Figure 4 and Figure 6 , the pushing mechanism 5 includes a moving plate 51, a pushing plate 52 and a driving component 53. The moving plate 51 is arranged at the inner bottom of the collecting bin 11, and multiple pairs of pushing plates 52 are arranged. The multiple pairs of pushing plates 52 are arranged in an array at the bottom of the moving plate 51. The front end of each pushing plate 52 is hinged to the moving plate 51. The moving plate 51 is provided with the same number of blocking rods 6 corresponding to each pair of pushing plates 52. Each blocking rod 6 is fixedly connected to the moving plate 51 and is located between a pair of pushing plates 52. The driving component 53 is arranged on the connecting plate 4, and the driving component 53 is used to drive the pushing plate 52 to reciprocate in the front-rear direction.

[0046] During use, refer to Figure 7 , the driving component 53 drives the moving plate 51 to reciprocate in the front-rear direction. Refer to Figure 9 , when the moving plate 51 moves backward in the direction close to the discharge port 13, the movement of the moving plate 51 drives the pushing plate 52 to move. Each pair of pushing plates 52 is blocked by the powder and opens to push the powder; refer to Figure 8 , when the moving plate 51 moves forward and moves in the direction away from the discharge port 13, the movement of the moving plate 51 drives the pushing plate 52 to move, and each pair of pushing plates 52 rotates in the direction of approaching each other and closes.

[0047] Refer to Figure 4 , the driving component 53 includes a first connecting rod 531, a second connecting rod 532 and a connecting seat 533. The first connecting rod 531 is hinged to the bottom wall of the connecting plate 4, and the first connecting rod 531 is located at the rear side of the hinged position of the connecting plate 4 and the housing 1. The second connecting rod 532 is hinged to the end of the first connecting rod 531 away from the connecting plate 4. The connecting seat 533 is vertically connected to the upper side wall of the moving plate 51, and the end of the connecting seat 533 away from the moving plate 51 is hinged to the end of the second connecting rod 532 away from the first connecting rod 531.

[0048] When the grid plate 2 located on the rear side moves downward and drives the connecting plate 4 to rotate, the connecting plate 4 rotates and drives the first connecting rod 531 and the second connecting rod 532 to rotate, and drives the movable plate 51 to move toward the rear side. When the grid plate 2 located on the front side moves downward and drives the connecting plate 4 to rotate, the connecting plate 4 rotates and drives the first connecting rod 531 and the second connecting rod 532 to rotate, and drives the movable plate 51 to move toward the front side and reset.

[0049] The implementation principle of a cleaning device for a powder spraying room in the embodiment of the present application is as follows:

[0050] When the powder spraying room needs to be cleaned, the operator first stands on the front grid plate 2. The front grid plate 2 moves downward under the action of the operator's gravity and compresses the compression spring 22. The grid plate 2 moves downward and pushes the baffle 3 located below to rotate. The baffle 3 cooperates to separate the front grid plate 2 and the collecting bin 11. Then the operator sprays the front of the workpiece. The powder that is not sprayed on the workpiece falls on the grid plate 2 that is not standing, and under the action of the negative pressure source, passes through the grid plate 2 and the collecting bin 11 into the discharge port 13 to be collected.

[0051] After completing the spraying of the front of the workpiece, the operator moves to the rear grid plate 2, the rear grid plate 2 moves down, and the baffle 3 located below the rear grid plate 2 rotates to separate the rear grid plate 2 and the collecting bin 11. At the same time, the front grid plate 2 moves up under the restoring force of the compression spring 22, and the end of the baffle 3 located below the front grid plate 2 away from the center of the shell 1 rotates downward, and the pull rope drives the vibration ball to move, and the vibration ball knocks on the inner wall of the collecting bin 11, and the powder on the inner wall of the collecting bin 11 falls off, and then the operator continues to spray the rear of the workpiece.

[0052] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0053] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A cleaning device for a powder spraying booth, comprising a housing. A grid plate is arranged below the housing. Below the grid plate inside the housing is a collection bin. One side of the housing is provided with a material suction mechanism for sucking and collecting the fallen powder materials, characterized in that: A pair of grid plates are symmetrically arranged and are respectively arranged at the front and rear sides inside the housing. A guide rod is fixedly connected to the lower part of each grid plate. A guide groove for the guide rod to slide is formed on the housing, and a compression spring is connected between the bottom of each guide rod and the bottom wall of the guide groove; A connecting plate is hinged inside the housing between the pair of grid plates. The front and rear ends of the connecting plate are respectively located below the pair of grid plates and are in contact with the grid plates; A plurality of baffle plates are hinged side by side in the front-rear direction below each grid plate. The baffle plates below the pair of grid plates are symmetrically arranged. The outer side of the baffle plate on the side close to the center of the housing is located below the adjacent outer baffle plate. The baffle plates below one grid plate can cooperate to partition the grid plate and the collection bin. The weight of the end of each baffle plate away from the center of the housing is greater than the weight of the end close to the center; During production, the workpiece to be processed is suspended between the two grid plates. When the operator stands on one of the grid plates and processes one side of the workpiece to be processed, the grid plate can push the baffle plate below it to rotate so that the baffle plate partitions the upper and lower sides of the grid plate. At the same time, the baffle plate below the grid plate where the operator does not stand will connect the upper and lower sides of the grid plate under the action of the gravity of the baffle plate itself; A pushing mechanism is arranged in the collection bin. The pushing mechanism is used to push the powder at the bottom of the collection bin; the pushing mechanism includes a moving plate arranged at the inner bottom of the collection bin. The moving plate is slidably connected to the side wall of the collection bin. A plurality of pairs of push plates are uniformly arranged in an array at the bottom of the moving plate. The front end of each push plate is hinged to the moving plate. A driving component is arranged on the connecting plate. The driving component is used to drive the push plates to reciprocate in the front-rear direction.

2. The cleaning device for a powder spraying booth according to claim 1, wherein: The left and right side walls of the collection bin are both inclined.

3. The cleaning device for a powder spraying booth according to claim 1, characterized in that: A plurality of connecting ropes are arranged in an array on the side of the bottom wall of the baffle plate away from the center of the housing. The lower end of the connecting rope is fixedly connected with a vibration ball.

4. The cleaning device for a powder spraying booth according to claim 1, wherein: The material suction mechanism includes a discharge port opened at the rear side of the housing. The discharge port is communicated with the collection bin, and the discharge port is communicated with a negative pressure source.

5. A cleaning device for a powder spraying booth according to claim 1, characterized in that: The driving component includes a first connecting rod hinged to the bottom wall of the connecting plate. The first connecting rod is located at the rear side of the hinged part of the connecting plate and the housing. The end of the first connecting rod away from the connecting plate is hinged to a second connecting rod. A connecting seat is vertically arranged on the upper side wall of the moving plate. The end of the connecting seat away from the moving plate is hinged to the end of the second connecting rod away from the first connecting rod.

6. The cleaning device for a powder spraying booth according to claim 5, wherein: The moving plate is provided with the same number of blocking rods corresponding to each pair of push plates. Each blocking rod is fixedly connected to the moving plate and is located between a pair of push plates.

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