Cleaning device for powder spraying room

Abstract

The invention provides a cleaning device for a powder spraying room, and belongs to the technical field of spraying cleaning, the cleaning device comprises a shell, a collecting bin and a material sucking mechanism used for sucking and collecting falling powder, a pair of grid plates are symmetrically arranged at the front end and the rear end in the shell, guide rods are connected to the lower portions of the grid plates, and guide grooves allowing the guide rods to slide are formed in the shell; the bottom of the guide rod is connected with the guide groove through a compression spring; a plurality of baffles are arranged below the grid plates side by side, the outer ends of the inner side baffles are located below the adjacent outer side baffles, the weight of the ends, away from the center of the shell, of the baffles is larger, and a machined workpiece is hung between the two grid plates. During spraying, the grid plate located on the front side of the spraying direction communicates with the collecting bin, the grid plate on which an operator stands is separated from the collecting bin, and therefore the powder spraying device can adapt to the falling track of powder, the falling powder can be conveniently collected, the amount of the powder which does not make contact with a workpiece and directly falls can be reduced, and the utilization rate of the powder is increased.

Description

Technical Field

[0001] The present application relates to the technical field of spray cleaning, and in particular to a cleaning device for a powder spraying room. Background Art

[0002] The powder spraying room is a special facility for coating process, mainly used for spraying powder coating. The powder spraying room can reduce the impact of external pollutants on coating quality and reduce the volatilization of powder coating and the pollution of dust to the environment. During the spraying process, the powder spraying room is usually cleaned for reasons such as preventing cross contamination, maintaining equipment performance, improving safety and extending equipment service life.

[0003] In the spraying production, part of the sprayed powder will fall on the floor of the powder spraying room. Some manufacturers will clean the powder spraying room separately after the spraying is completed. However, the staff involved in the spraying will walk back and forth and trample on the powder during the spraying process. On the one hand, the powder is easily taken out of the powder spraying room and pollutes other areas. On the other hand, the powder will gather after being trampled, which increases the difficulty of cleaning. Referring to the Chinese patent document with the announcement number CN111871671B, the name is a powder spraying room. In this patent, a powder spraying room body is provided, and the front side wall and the rear side wall of the powder spraying room body are respectively provided with an entrance and an exit for the parts to be sprayed with powder, and the top wall of the powder spraying room body is provided with a slot, and the hanging chain for hanging the parts to be sprayed with powder passes through the slot. The powder spraying room body includes an automatic spraying room, and the lower part of the automatic spraying room is provided with a powder recovery port, and the powder recovery port is connected to an exhaust fan. When working, the automatic spraying mechanism first sprays the workpiece, and then the staff sprays the workpiece at the door on both sides of the powder spraying room at the same time.

[0004] Referring to the above technical scheme, the above scheme can only spray small workpieces, and for large and complex workpieces, the supplementary spraying effect of the above scheme is not good, and it is still necessary to use a powder spraying room that allows workers to enter the powder spraying room and move on both sides to complete the spraying of the workpieces. In addition, in the spraying process of the above scheme, the sprayed powder will also fall to the powder recovery port under the action of the blower during the spraying process when spraying onto the workpiece to be processed, so that more powder needs to be sprayed to complete the spraying of the workpiece, which reduces the utilization rate of the powder. Summary of the invention

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

[0006] The present application provides a cleaning device for a powder spraying room, which adopts the following technical scheme, including a shell, a grid plate is arranged under the shell, a collection bin is located under the grid plate in the shell, a suction mechanism for sucking and collecting fallen powder is arranged on one side of the shell, a pair of grid plates are symmetrically arranged and are respectively arranged on the front and rear sides of the shell, a guide rod is fixedly connected to the bottom of each grid plate, a guide groove for the guide rod to slide is opened on the shell, and the bottom of each guide rod and the bottom wall of the guide groove are connected by a compression spring; a plurality of baffles are hinged side by side in the front and rear directions under each grid plate, the baffles under a pair of grid plates are symmetrically arranged, the outer side of the baffle close to the center side of the shell is located below the adjacent outer baffle, the baffle located under a grid plate can cooperate to separate the grid plate and the collection bin, and the weight of each baffle away from the center of the shell is greater than the weight of the end close to the center; during production, the processed workpiece is suspended between the two grid plates.

[0007] By adopting the above technical solution, during the spraying process, the operator stands on a grid plate to spray the workpiece, and the corresponding grid plate moves downward under the gravity of the operator and compresses the compression spring. The grid plate moves and drives the baffle to rotate, and the baffle 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 where the operator is not standing under the action of gravity. Under the action of the suction mechanism, the powder is collected by the suction mechanism through the holes and collection bin on the grid plate where the operator is not standing; when the operator moves to another grid plate, the grid plate that is left moves upward under the action of the restoring force of the compression spring, and the end of the baffle away from the center rotates downward under the action of gravity, and the upper and lower sides of the baffle are connected.

[0008] The present application can facilitate the spraying of large and complex workpieces, ensure the spraying effect of the workpiece, and ensure a 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 connected to the collection bin, and the grid plate on which the operator stands can be separated from the collection bin, thereby adapting to the trajectory of powder falling, facilitating the collection of powder, and reducing the amount of powder that falls directly without contacting the workpiece, thereby improving the utilization rate of the powder.

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

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

[0011] Optionally, a plurality of connecting ropes are distributed in an array on one side of the bottom wall of the baffle away from the center of the shell, 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 away from the center rotates downward under the action of gravity, the rotation of the baffle drives the connecting rope and the vibrating ball to move downward, and the vibrating ball knocks on the inner wall of the collecting bin, and the powder adhering to the inner wall of the collecting bin falls off, thereby improving the collection effect of the powder.

[0013] Optionally, a connecting plate is hingedly connected between the two grid plates in the shell, and the front and rear ends of the connecting plate are respectively located under 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 plate, so that the connection between the two grid plates can be achieved, reducing the risk of steps between the grid plates, which is conducive to improving the safety of the operating environment.

[0015] Optionally, the suction mechanism includes a discharge port opened on the rear side of the shell, the discharge port is connected to the collection bin, and the discharge port is connected to a negative pressure source.

[0016] Optionally, a pushing mechanism is provided in the collecting bin, and the pushing mechanism is used to push the powder at the bottom of the collecting bin; the pushing mechanism includes a movable plate arranged at the bottom of the collecting bin, the movable plate is slidably connected to the side wall of the collecting bin, and a plurality of pairs of push plates are evenly distributed in the array at the bottom of the movable plate, and the front end of each push plate is hinged on the movable plate, and a driving assembly is provided on the connecting plate, and the driving assembly is used to drive the push plate to reciprocate along the front and rear directions.

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

[0018] Optionally, the driving assembly includes a first connecting rod hinged on the bottom wall of the connecting plate, the first connecting rod is located on the rear side of the hinge between the connecting plate and the shell, the end of the first connecting rod away from the connecting plate is hinged to the second connecting rod, and a connecting seat is vertically arranged on the upper side wall of the movable plate, and the end of the connecting seat away from the movable plate is hinged to the end of the second connecting rod away from the first connecting rod.

[0019] By adopting the above technical solution, when the grid plate located on the rear side moves downward and drives 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 movable plate to move toward the rear side. When the grid plate located on the front side moves downward and drives 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 movable plate to move toward the front side and reset.

[0020] Optionally, the movable plate is provided with the same number of baffle bars corresponding to each pair of push plates, and each baffle bar is fixedly connected to the movable plate and located between a pair of push plates.

[0021] By adopting the above technical solution, the setting of the gear lever can limit the minimum closing angle of a pair of push plates, thereby reducing the risk of a pair of push plates being completely closed and unable to open.

[0022] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects: 1. In the present application, when the operator is spraying, the grid plate located in the front side of the spraying direction can be connected to the collection bin, and the grid plate on which the operator stands can be separated from the collection bin, thereby adapting to the trajectory of powder falling and facilitating the collection of powder, and reducing the amount of powder that falls directly without contacting the workpiece, thereby improving the utilization rate of the powder.

[0023] 2. By setting the connecting rope and the vibrating ball, when the grid plate moves up, the end of the baffle away from the center of the shell can rotate downward, and the vibrating ball can knock on the inner wall of the collection bin, and the powder adhering to the inner wall of the collection bin falls off, thereby improving the collection effect of the powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 This is a schematic diagram of the structure of the connecting plate in the embodiment of the present application; Figure 3 This is a schematic diagram of the structure of the collection bin in the embodiment of the present application; Figure 4 This is a schematic diagram of the structure of the push mechanism in the embodiment of the present application; Figure 5 For the embodiment of this application Figure 2 A partial enlarged view of the middle area A; Figure 6 This is a schematic diagram of the structure of the push plate and the baffle rod in the embodiment of the present application; Figure 7 This is a schematic diagram of the partial structure of the collecting bin and the moving plate in the embodiment of the present application; Figure 8 This is a schematic diagram of the structure in which the movable plate moves away from the discharge port in the embodiment of the present application; Fig. 9 This is a schematic diagram of the structure in which the movable plate moves toward the discharge port in an embodiment of the present application.

[0025] Explanation of the reference numerals: 1. Shell; 11. Collection bin; 12. Guide groove; 13. Discharge port; 2. Grid plate; 21. Guide rod; 22. Compression spring; 3. Baffle plate; 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. Baffle rod. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the embodiments of the present application. Figure 1-Figure 6 , the technical scheme of the embodiment of the present application is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0027] Reference Figure 1 and Figure 2 A cleaning device for a powder spraying room comprises a shell 1 and a cleaning module. The shell 1 is arranged on a horizontal plane, the shell 1 is a spraying place, two cleaning modules are arranged, the two cleaning modules are arranged on the left and right sides of the shell 1 respectively, the structures of the two cleaning modules are arranged symmetrically, and the cleaning modules are used to clean the shell 1.

[0028] Reference Figure 2 , Figure 3 and Figure 4 The cleaning module includes a pair of grid plates 2, a suction mechanism and a control mechanism. The pair of grid plates 2 are respectively arranged at the front and rear sides of the shell 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 in the shell 1, and the left and right side walls of the collection bin 11 are inclined. A connecting plate 4 is hingedly arranged between each pair of grid plates 2 in the shell 1. The central axis of the hinge of the connecting plate 4 extends in the left and right directions. The front and rear ends of the connecting plate 4 are respectively located below the two grid plates 2 and abut against the grid plates 2. During production, the workpiece is suspended between the two grid plates 2 and located above the connecting plate 4; the suction mechanism is arranged at the rear side of the shell 1 and is used to suck and collect the fallen powder; the control mechanism is arranged in the shell 1, and is used to separate the grid plate 2 from the collection bin 11 below when the operator stands on a grid plate 2.

[0029] Reference Figure 3 The 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 be connected to 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 an exhaust fan or the like.

[0030] Reference Figure 4 and Figure 5 The control mechanism includes a baffle 3. The baffle 3 is arranged below the grid plate 2 and is provided in plurality. Each baffle 3 is hinged on the inner side wall of the shell 1 and the hinge center extends in the left-right direction. The baffles 3 located below a pair of grid plates 2 are symmetrically arranged about the center of the shell 1. The baffles 3 below each grid plate 2 are arranged side by side and the outer side of the baffle 3 close to the center of the shell 1 is located below the adjacent outer baffle 3. The weight of each baffle 3 away from the center of the shell 1 is greater than the weight of the end close to the center. The four corners or two corners of the grid plate 2 can be fixedly connected to the guide rod 21 below. The shell 1 is provided with a guide groove 12 for the guide rod 21 to slide, and the bottom of each guide rod 21 is connected to the bottom wall of the guide groove 12 by a compression spring 22. In order to save space, a placement groove can also be provided at the bottom of the guide rod 21, and the two ends of the compression spring 22 are fixedly connected to the top wall of the placement groove and the bottom wall of the guide groove 12 respectively.

[0031] During the spraying process, the operator stands on a grid plate 2 to spray the workpiece, and the corresponding grid plate 2 moves downward under the gravity of the operator and compresses the compression spring 22. The grid plate 2 moves and drives the baffle 3 to rotate. The baffle 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 is not standing under the action of gravity. Under the action of the suction mechanism, the powder is collected by the suction mechanism through the holes on the grid plate 2 where the operator is not standing 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 action of the restoring force of the compression spring 22, and the end of the baffle 3 away from the center rotates downward under the action of gravity, and the upper and lower sides of the baffle 3 are connected.

[0032] In the present application, when the operator is spraying, the grid plate 2 located in the front side of the spraying direction can be connected to the collecting bin 11, while the grid plate 2 on which the operator stands can be separated from the collecting bin 11, thereby adapting to the trajectory of powder falling and facilitating the collection of powder, and reducing the amount of powder that falls directly without contacting the workpiece, thereby improving the utilization rate of the powder.

[0033] Reference Figure 4 A cleaning device for a powder spraying room includes a connecting rope 31 and a vibrating ball. A plurality of connecting ropes 31 are arranged in an array on one side of the bottom wall of each baffle 3 away from the center of the shell 1, and a plurality of vibrating balls are arranged corresponding to the connecting ropes 31, and each vibrating ball is fixedly connected to the lower end of a connecting rope 31 and can contact the inner wall of the shell 1.

[0034] 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 the inner wall of the collecting bin 11, and the powder adhering to the inner wall of the collecting bin 11 falls off, thereby improving the collection effect of the powder.

[0035] Reference Figure 4 and Figure 6 A cleaning device for a powder spraying room includes a pushing mechanism 5. A pushing mechanism 5 is arranged in each collecting bin 11, and the pushing mechanism 5 is used to push the powder at the bottom of the collecting bin 11.

[0036] Reference Figure 4 and Figure 6 The pushing mechanism 5 includes a moving plate 51, a push plate 52 and a driving assembly 53. The moving plate 51 is arranged at the bottom of the collecting bin 11, and a plurality of pairs of push plates 52 are arranged. The plurality of pairs of push plates 52 are arranged in an array at the bottom of the moving plate 51. The front end of each push plate 52 is hinged on the moving plate 51. The moving plate 51 is provided with the same number of blocking rods 6 corresponding to each pair of push plates 52. Each blocking rod 6 is fixedly connected to the moving plate 51 and is located between a pair of push plates 52. The driving assembly 53 is arranged on the connecting plate 4, and is used to drive the push plates 52 to reciprocate in the front-rear direction.

[0037] When using, refer to Figure 7 The driving assembly 53 drives the moving plate 51 to move back and forth in the front and rear directions. Fig. 9 When the movable plate 51 moves backward toward the direction close to the discharge port 13, the movable plate 51 moves and drives the push plate 52 to move. Each pair of push plates 52 is blocked by the powder and opens to push the powder; Figure 8 When the moving plate 51 moves forward and moves in a direction away from the discharge port 13, the moving plate 51 drives the push plates 52 to move, and each pair of push plates 52 rotates in a direction close to each other and closes.

[0038] Reference Figure 4 The driving assembly 53 includes a first connecting rod 531, a second connecting rod 532 and a connecting seat 533. The first connecting rod 531 is hinged on the bottom wall of the connecting plate 4, and the first connecting rod 531 is located at the rear side of the hinge between the connecting plate 4 and the housing 1. The second connecting rod 532 is hinged on 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.

[0039] 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.

[0040] The implementation principle of a cleaning device for a powder spraying room in the embodiment of the present application is as follows: 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.

[0041] 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.

[0042] 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.

[0043] 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 room, comprising a housing (1), a grid plate (2) being arranged below the housing (1), a collecting bin (11) being arranged below the grid plate (2) in the housing (1), a suction mechanism for sucking and collecting fallen powder being arranged on one side of the housing (1), and characterized in that: A pair of grid plates (2) are symmetrically arranged and are arranged at the front and rear sides of the housing (1), respectively; a guide rod (21) is fixedly connected to the bottom of each grid plate (2); a guide groove (12) for the guide rod (21) to slide is provided on the housing (1); and a bottom of each guide rod (21) and a bottom wall of the guide groove (12) are connected via a compression spring (22); A plurality of baffles (3) are hingedly connected side by side in a front-to-rear direction below each grid plate (2); the baffles (3) below a pair of grid plates (2) are symmetrically arranged; the outer side of the baffle (3) on the side close to the center of the shell (1) is located below the adjacent outer baffle (3); the baffle (3) below a grid plate (2) can cooperate to separate the grid plate (2) and the collection bin (11); and the weight of each baffle (3) at one end away from the center of the shell (1) is greater than the weight of the end close to the center; During production, the workpiece is suspended between two grid plates (2).

2. A cleaning device for a powder spraying room according to claim 1, characterized in that: The left and right side walls of the collecting bin (11) are both arranged inclined.

3. A cleaning device for a powder spraying room according to claim 1, characterized in that: A plurality of connecting ropes (31) are arranged in an array on one side of the bottom wall of the baffle (3) away from the center of the shell (1), and a vibration ball is fixedly connected to the lower end of the connecting rope (31).

4. A cleaning device for a powder spraying room according to claim 1, characterized in that: A connecting plate (4) is hingedly connected between a pair of grid plates (2) in the housing (1), and front and rear ends of the connecting plate (4) are respectively located below the pair of grid plates (2) and abut against the grid plates (2).

5. A cleaning device for a powder spraying room according to claim 1, characterized in that: The material suction mechanism comprises a material discharge port (13) opened on the rear side of the shell (1), the material discharge port (13) is connected to the collection bin (11), and the material discharge port (13) is connected to a negative pressure source.

6. A cleaning device for a powder spraying room according to claim 1, characterized in that: A pushing mechanism (5) is provided in the collecting bin (11), and the pushing mechanism (5) is used to push the powder material at the bottom of the collecting bin (11); the pushing mechanism (5) comprises a moving plate (51) provided at the bottom of the collecting bin (11), the moving plate (51) being slidably connected to the side wall of the collecting bin (11), a plurality of pairs of pushing plates (52) being evenly arranged in an array at the bottom of the moving plate (51), the front end of each pushing plate (52) being hinged to the moving plate (51), and a driving assembly (53) being provided on the connecting plate (4), and the driving assembly (53) being used to drive the pushing plate (52) to reciprocate in a front-rear direction.

7. A cleaning device for a powder spraying room according to claim 6, characterized in that: The driving assembly (53) comprises a first connecting rod (531) hinged on the bottom wall of the connecting plate (4); the first connecting rod (531) is located at the rear side of the hinge between the connecting plate (4) and the housing (1); an end of the first connecting rod (531) away from the connecting plate (4) is hinged to a second connecting rod (532); a connecting seat (533) is vertically arranged on the upper side wall of the movable plate (51); an end of the connecting seat (533) away from the movable plate (51) is hinged to an end of the second connecting rod (532) away from the first connecting rod (531).

8. A cleaning device for a powder spraying room according to claim 7, characterized in that: The movable plate (51) is provided with the same number of blocking rods (6) corresponding to each pair of push plates (52); each blocking rod (6) is fixedly connected to the movable plate (51) and is located between the pair of push plates (52).

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