Electrostatic powder spraying and recycling device

Abstract

The invention belongs to the technical field of powder spraying and recycling, and discloses an electrostatic powder spraying and recycling device which comprises a shell, a fan is mounted at the top end of the shell, a filter drum is mounted at the top end of the shell, a pulse back flushing assembly is mounted outside the shell, a recycling groove is formed in the bottom end of the interior of the shell, and a classification mechanism is mounted in the shell. A moving mechanism is arranged in the shell, a powder collecting mechanism is arranged at one end of the moving mechanism, a filtering mechanism is installed in the shell, and through cooperation of a fine-dividing recycling box, a coarse powder recycling channel, a coarse powder recycling box and other structures, the device can filter fine powder through a filtering plate to enable the fine powder to enter the fine-dividing recycling box; and at the moment, the coarse powder stays at the top end of the subdivision recycling box, and the filtering plate drives the coarse powder to move during vibration, so that the coarse powder enters the coarse powder recycling box through a coarse powder recycling channel to be recycled, and the purpose that the device conveniently recycles the powder and classifies the powder is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of powder spraying recovery, in particular to an electrostatic powder spraying recovery device. Background Art

[0002] Electrostatic powder spraying technology is widely used in the field of industrial surface treatment due to its environmental protection and high efficiency. During the spraying process, the powder is adsorbed on the surface of the workpiece by static electricity, and the unadsorbed powder will be scattered in the spraying room. With the improvement of environmental protection requirements, powder recovery has become an important part of the spraying process. At present, the industry generally adopts cyclone separation, cartridge filtration and other technologies for powder recovery, but these technologies have problems such as low recovery efficiency, high energy consumption and high maintenance cost. In recent years, with the development of intelligent manufacturing, enterprises have put forward higher requirements for the automation and recovery efficiency of powder recovery systems. Patent No. CN220048677U discloses an electrostatic spray powder recovery device, including a plastic powder recovery machine and a containing barrel. The surface of the plastic powder recovery machine is provided with an operating trough, a micro-mesh filter cartridge is installed inside the operating trough, a leakage trough is provided at the bottom of the operating trough, a leakage hole is provided at the bottom of the leakage trough, a transmission pipe is provided at the bottom of the leakage hole, a movable inner trough is opened inside the plastic powder recovery machine, a concave trough member is fixedly connected to the bottom of the movable inner trough, and a glass plate is provided on the surface of the plastic powder recovery machine. The electrostatic spray powder recovery device, through the connection and function of the plastic powder recovery machine, the containing barrel, the operating trough, the micro-mesh filter cartridge, the leakage trough, the leakage hole, the transmission pipe, the movable inner trough, the concave trough member, the sliding plate, the storage box, the sliding door and the glass plate, achieves effective classification of the powders, reduces the mutual influence between the powders, and provides convenience for environmental protection reuse.

[0003] However, when in use, the device cannot effectively move the powder attached to the powder collecting bin to the collecting tank, resulting in incomplete powder recovery. In addition, the device cannot classify and collect powders of different pore sizes, resulting in spraying quality problems caused by fine powder mixing with coarse powder. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides an electrostatic powder spraying recovery device.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an electrostatic powder spray recovery device, comprising a shell, a fan is installed at the top of the shell, a filter cartridge is installed at the top of the shell, a pulse backflush assembly is installed outside the shell, a recovery tank is opened at the bottom of the shell, a classification mechanism is installed inside the shell, a moving mechanism is arranged inside the shell, a powder collecting mechanism is arranged at one end of the moving mechanism, and a filtering mechanism is installed inside the shell; The classification mechanism includes a fine powder recycling box, a coarse powder recycling channel, and a coarse powder recycling box. The fine powder recycling box is movably connected inside the housing. A coarse powder recycling channel is provided at the bottom end inside the housing, and a coarse powder recycling box is movably connected inside the housing. The moving mechanism includes a first servo motor, a pressing plate, and a positioning rod. The first servo motor is fixed outside the housing, the positioning rod is fixed inside the housing, and the pressing plate is slidably connected to the outside of the positioning rod. The powder collecting mechanism includes a second servo motor and a connecting disk. The second servo motor is fixed outside the pressing plate, and the rotating end of the second servo motor is fixed with a connecting disk.

[0006] Preferably, there are two sets of the coarse powder recycling channels and the coarse powder recycling boxes. The coarse powder recycling channels and the coarse powder recycling boxes are symmetrically distributed about the central axis of the fine powder recycling box. The fine powder recycling box is slidably connected to the housing, and the coarse powder recycling box is slidably connected to the housing.

[0007] Preferably, the rotating end of the first servo motor is fixed with a bidirectional screw rod. The bidirectional screw rod is rotatably connected to the housing. The first servo motor is threadedly connected to the pressing plate. There are two sets of pressing plates, and the pressing plates are symmetrically distributed about the central axis of the positioning rod.

[0008] Preferably, a connecting rod is fixed to the outside of the connecting disk. A transmission member is rotatably connected inside the pressing plate. A cleaning block is slidably connected inside the pressing plate, and a brush is fixed to the bottom end of the cleaning block.

[0009] Preferably, a limiting groove is provided at one end of the transmission member. The outer wall of the connecting rod fits into the limiting groove of the transmission member. The connecting rod is slidably connected to the transmission member, and a number of sets of teeth are provided at the bottom end of the transmission member.

[0010] Preferably, a number of sets of teeth are provided at the top end of the cleaning block. The transmission member is meshed with the cleaning block. A number of sets of brushes are provided, and the brushes are arranged in an array.

[0011] Preferably, the filtering mechanism includes a filter plate, a third servo motor, and an eccentric wheel. The filter plate is movably connected inside the housing. The third servo motor is fixed inside the housing, and the eccentric wheel is fixed to the bottom end of the third servo motor. A sleeve is fixed inside the filter plate. A threaded rod is threadedly connected inside the sleeve. A limiting block is rotatably connected inside the sleeve. A torsion spring is fixed to the outside of the limiting block. A clamping plate is fixed inside the housing, and a return spring is fixed to the outside of the clamping plate.

[0012] Preferably, the outer wall of the filter plate fits against the inner wall of the housing. The filter plate is slidably connected to the housing. A plurality of groups of filter holes are provided at the top end of the filter plate. The contact end of the filter plate with the eccentric wheel is arc-shaped.

[0013] Preferably, there are two sets of limiting blocks, which are symmetrically distributed about the central axis of the sleeve. There are two sets of torsion springs, which are symmetrically distributed about the central axis of the limiting blocks. The torsion springs are used to squeeze the limiting blocks and keep them in a tendency to rotate inward.

[0014] Preferably, the outer wall of the clamping plate is close to the inner wall of the housing. The clamping plate is slidably connected to the housing. A jack is provided inside the clamping plate. There are two sets of return springs, which are used to squeeze the clamping plate and keep it in a tendency to move outward.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the cooperation of structures such as a fine powder recovery box, a coarse powder recovery channel, and a coarse powder recovery box, the device can filter fine powder through a filter plate and make it enter the fine powder recovery box. At this time, the coarse powder stays at the top of the fine powder recovery box. When the filter plate vibrates, it drives the coarse powder to move, so that the coarse powder enters the coarse powder recovery box through the coarse powder recovery channel for recovery, thereby achieving the purpose of facilitating the classification of powder recovery by the device.

[0016] Through the cooperation of structures such as a first servo motor, an extrusion plate, and a positioning rod, the device can start the first servo motor, which drives the positioning rod to rotate, and then drives the position of the extrusion plate to move. The extrusion plate fits against the recovery groove, so that when the extrusion plate moves, the powder attached to the surface of the recovery groove is pushed to the top of the filter plate for recovery, thereby improving the efficiency of powder recovery by the device.

[0017] Through the cooperation of structures such as a second servo motor, a connecting disk, and a connecting rod, the device can drive the connecting disk and the connecting rod to rotate by starting the second servo motor, so that the connecting rod contacts the transmission part and drives the transmission part to swing and rotate. The transmission part drives the cleaning block to move reciprocally, so that when the brush bristles contact the powder at the bottom, it can sweep and recover the powder more efficiently, thereby achieving the purpose of facilitating the device to improve the recovery efficiency.

[0018] Through the cooperation of structures such as a filter plate, a third servo motor, and an eccentric wheel, the device of the present invention can insert the filter plate into the installation groove of the housing. At this time, the sleeve is inserted into and passes through the jack of the clamping plate. By rotating the threaded rod, the threaded rod moves forward through the thread, thereby squeezing two limit blocks, causing the limit blocks to expand, and then connecting the filter plate and the clamping plate. At this time, start the third servo motor, and the third servo motor drives the eccentric wheel to rotate. When the eccentric wheel squeezes the filter plate, the return spring stretches. When the eccentric wheel disengages, the return spring pulls the clamping plate back and then pulls the filter plate back, causing the filter plate to perform a reciprocating motion, thereby improving the filtering efficiency of the filter plate for the powder material, so as to achieve the purpose of facilitating the device to perform vibration filtering classification and recycling of the powder material. Description of the Drawings

[0019] Figure 1 Schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the overall rear view structure of the present invention; Figure 3 Schematic diagram of the overall sectional structure of the present invention; Figure 4 Schematic diagram of the powder collecting mechanism structure of the present invention; Figure 5 Schematic diagram of the overall structure of the powder collecting mechanism of the present invention; Figure 6 Schematic diagram of the shaking assembly structure of the present invention; Figure 7 Schematic diagram of the front view sectional structure of the classification mechanism of the present invention; Figure 8 Schematic diagram of the connection state of the filtering mechanism of the present invention; Figure 9 Schematic diagram of partial explosion of the filtering mechanism of the present invention; Figure 10 Schematic diagram of the limit block structure of the present invention.

[0020] In the figure: 1. Housing; 2. Fan; 3. Filter cartridge; 4. Pulse backwashing assembly; 5. Recovery tank; 6. Classification mechanism; 601. Sub - fine recovery box; 602. Coarse powder recovery channel; 603. Coarse powder recovery box; 7. Moving mechanism; 701. First servo motor; 702. Extrusion plate; 703. Positioning rod; 704. Bidirectional screw; 8. Powder collecting mechanism; 801. Second servo motor; 802. Connection disk; 803. Connecting rod; 804. Transmission part; 805. Cleaning block; 806. Brush hair; 9. Filtering mechanism; 901. Filter plate; 902. Third servo motor; 903. Eccentric wheel; 904. Sleeve; 905. Threaded rod; 906. Limit block; 907. Torsion spring; 908. Clamping plate; 909. Return spring. Detailed Embodiment

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] As Figures 1 to 10 shown, the present invention provides an electrostatic powder spraying recovery device, including a housing 1, a blower 2 is installed at the top end of the housing 1, a filter cartridge 3 is installed at the top end of the housing 1, a pulse back-blowing assembly 4 is installed outside the housing 1, a recovery tank 5 is opened at the bottom end inside the housing 1, a classification mechanism 6 is installed inside the housing 1, a moving mechanism 7 is arranged inside the housing 1, a powder collecting mechanism 8 is arranged at one end of the moving mechanism 7, and a filtering mechanism 9 is installed inside the housing 1.

[0023] Adopting the above solution: By starting the blower 2, when a worker sprays an object with powder, the powder is adsorbed on the filter cartridge 3, and when the powder adsorbed on the filter cartridge 3 reaches a threshold value, the pulse back-blowing assembly 4 is started to shake off the powder on the filter cartridge 3, thereby recovering the powder.

[0024] As Figures 1 to 10 shown, the classification mechanism 6 includes a fine powder recovery box 601, a coarse powder recovery channel 602 and a coarse powder recovery box 603. The fine powder recovery box 601 is movably connected inside the housing 1. A coarse powder recovery channel 602 is opened at the bottom end inside the housing 1. A coarse powder recovery box 603 is movably connected inside the housing 1. There are two groups of the coarse powder recovery channels 602 and the coarse powder recovery channels 602. The coarse powder recovery channel 602 and the coarse powder recovery box 603 are symmetrically distributed about the central axis of the fine powder recovery box 601. The fine powder recovery box 601 is slidably connected to the housing 1, and the coarse powder recovery box 603 is slidably connected to the housing 1.

[0025] Adopting the above solution: The fine powder is filtered through the filter plate 901 to enter the inside of the fine powder recovery box 601. At this time, the coarse powder stays at the top end of the fine powder recovery box 601. When the filter plate 901 vibrates, it drives the coarse powder to move, so that the coarse powder enters the inside of the coarse powder recovery box 603 through the coarse powder recovery channel 602 for recovery. Thus, the device classifies the powder after recovery, avoiding the spraying quality problem caused by the mixing of fine powder into coarse powder.

[0026] As Figures 1 to 10As shown in the figure, the moving mechanism 7 includes a first servo motor 701, a pressing plate 702 and a positioning rod 703. The first servo motor 701 is fixed outside the housing 1. The positioning rod 703 is fixed inside the housing 1. The pressing plate 702 is slidably connected to the outside of the positioning rod 703. The rotating end of the first servo motor 701 is fixed with a bidirectional screw rod 704. The bidirectional screw rod 704 is rotatably connected to the housing 1. The first servo motor 701 is threadedly connected to the pressing plate 702. There are two sets of pressing plates 702, and the pressing plates 702 are symmetrically distributed about the central axis of the positioning rod 703.

[0027] Adopting the above solution: By starting the first servo motor 701, the first servo motor 701 drives the positioning rod 703 to rotate, thereby driving the position of the pressing plate 702 to move. The pressing plate 702 fits with the recovery groove 5, so that when the pressing plate 702 moves, the powder attached to the surface of the recovery groove 5 is pushed to the top of the filter plate 901 for recovery. After the powder is pushed to the preset position, the first servo motor 701 reverses to reset the two pressing plates 702.

[0028] As Figures 1 to 10 As shown in the figure, the powder collecting mechanism 8 includes a second servo motor 801 and a connecting disk 802. The second servo motor 801 is fixed outside the pressing plate 702. The rotating end of the second servo motor 801 is fixed with a connecting disk 802. The outside of the connecting disk 802 is fixed with a connecting rod 803. A transmission member 804 is rotatably connected inside the pressing plate 702. A cleaning block 805 is slidably connected inside the pressing plate 702. The bottom end of the cleaning block 805 is fixed with a brush hair 806. A limiting groove is opened at one end of the transmission member 804. The outer wall of the connecting rod 803 fits with the limiting groove of the transmission member 804. The connecting rod 803 is slidably connected to the transmission member 804. A plurality of sets of teeth are provided at the bottom end of the transmission member 804. A plurality of sets of teeth are provided at the top end of the cleaning block 805. The transmission member 804 is meshed with the cleaning block 805. A plurality of sets of brush hairs 806 are provided, and the brush hairs 806 are arranged in an array.

[0029] Adopting the above solution: By starting the second servo motor 801, the connecting disk 802 and the connecting rod 803 are driven to rotate, so that the connecting rod 803 contacts the transmission member 804, driving the transmission member 804 to swing and rotate. The cleaning block 805 is driven by the transmission member 804 to move reciprocally, so that when the brush hair 806 contacts the powder at the bottom, it can sweep and recover the powder more efficiently, and cooperate with the movement path of the pressing plate 702, thereby improving the efficiency of the device in sweeping the powder.

[0030] As Figures 1 to 10As shown in the figure, the filtering mechanism 9 includes a filter plate 901, a third servo motor 902, and an eccentric wheel 903. The filter plate 901 is movably connected inside the housing 1. The third servo motor 902 is fixed inside the housing 1, and the eccentric wheel 903 is fixed to the bottom end of the third servo motor 902. The outer wall of the filter plate 901 fits against the inner wall of the housing 1, and the filter plate 901 is slidably connected to the housing 1. A plurality of groups of filter holes are provided at the top end of the filter plate 901, and the contact end of the filter plate 901 with the eccentric wheel 903 is arc-shaped.

[0031] As Figures 1 to 10 As shown in the figure, a sleeve 904 is fixed inside the filter plate 901. A threaded rod 905 is threadedly connected inside the sleeve 904. A limiting block 906 is rotatably connected inside the sleeve 904. A torsion spring 907 is fixed to the outside of the limiting block 906. There are two groups of limiting blocks 906, which are symmetrically distributed about the central axis of the sleeve 904. There are two groups of torsion springs 907, which are symmetrically distributed about the central axis of the limiting block 906. The torsion spring 907 is used to squeeze the limiting block 906 and keep it in a tendency to rotate inward. A clamping plate 908 is fixed inside the housing 1. A return spring 909 is fixed to the outside of the clamping plate 908. The outer wall of the clamping plate 908 is close to the inner wall of the housing 1, and the clamping plate 908 is slidably connected to the housing 1. A jack is provided inside the clamping plate 908. There are two groups of return springs 909, and the return spring 909 is used to squeeze the clamping plate 908 and keep it in a tendency to move outward.

[0032] Adopting the above solution: By inserting the filter plate 901 into the installation groove of the housing 1, at this time the sleeve 904 is inserted into and passes through the jack of the clamping plate 908, rotating the threaded rod 905, so that the threaded rod 905 moves forward through the thread, thereby squeezing the two groups of limiting blocks 906, causing the limiting blocks 906 to expand, thereby connecting the filter plate 901 and the clamping plate 908. At this time, start the third servo motor 902, and the third servo motor 902 drives the eccentric wheel 903 to rotate. When the eccentric wheel 903 squeezes the filter plate 901, the return spring 909 stretches. When the eccentric wheel 903 disengages, the return spring 909 pulls the clamping plate 908 back and then pulls the filter plate 901 back, causing the filter plate 901 to perform a reciprocating motion, thereby improving the filtering efficiency of the filter plate 901 for the powder material. When it needs to be removed, rotate the threaded rod 905 in the reverse direction, so that the two groups of limiting blocks 906 are no longer squeezed. At this time, the torsion spring 907 resets the two groups of limiting blocks 906. At this time, the filter plate 901 can be taken out, and then replaced or cleaned, so as to ensure the filtering effect of the device.

[0033] Working principle and usage process of the present invention: By starting the blower 2, when workers use powder to spray objects, the powder is adsorbed on the filter cartridge 3. When the powder adsorbed on the filter cartridge 3 reaches the threshold, the pulse back-blowing assembly 4 is started to shake off the powder on the filter cartridge 3, and then the powder is recovered. By inserting the filter plate 901 into the installation groove of the housing 1, at this time, the sleeve 904 is inserted into and passes through the jack of the clamping plate 908. By rotating the threaded rod 905, the threaded rod 905 moves forward through the thread, and then squeezes the two limit blocks 906, so that the limit blocks 906 expand, and then the filter plate 901 and the clamping plate 908 are connected. At this time, the third servo motor 902 is started, and the third servo motor 902 drives the eccentric wheel 903 to rotate. When the eccentric wheel 903 squeezes the filter plate 901, the return spring 909 stretches. When the eccentric wheel 903 disengages, the return spring 909 pulls the clamping plate 908 back and then pulls the filter plate 901 back, so that the filter plate 901 moves reciprocally, thereby improving the filtering efficiency of the filter plate 901 for the powder. When it needs to be removed, the threaded rod 905 is rotated reversely, so that the two limit blocks 906 are no longer squeezed. At this time, the torsion spring 907 resets the two limit blocks 906, and at this time, the filter plate 901 can be taken out, and then it can be replaced or cleaned, so as to ensure the filtering effect of the device. When the device is in use, the fine powder is filtered by the filter plate 901 and enters the internal part of the fine powder recovery box 601. At this time, the coarse powder stays at the top of the fine powder recovery box 601. When the filter plate 901 vibrates, it drives the coarse powder to move, so that the coarse powder enters the internal part of the coarse powder recovery box 603 through the coarse powder recovery channel 602 for recovery, thereby enabling the device to classify the powder after recovery, avoiding the spraying quality problems caused by the mixing of fine powder into the coarse powder, and by starting the first servo motor 701, the first servo motor 701 drives the positioning rod 703 to rotate, and then drives the position of the pressing plate 702 to move. The pressing plate 702 fits with the recovery groove 5, so that when the pressing plate 702 moves, it pushes the powder attached to the surface of the recovery groove 5 to the top of the filter plate 901 for recovery. After the powder is pushed to the preset position, the first servo motor 701 reverses to reset the two pressing plates 702, and by starting the second servo motor 801, it drives the connecting disk 802 and the connecting rod 803 to rotate, so that the connecting rod 803 contacts the transmission part 804, drives the transmission part 804 to swing and rotate, and drives the cleaning block 805 to move reciprocally through the transmission part 804, so that when the bristles 806 contact the powder at the bottom, it can sweep and recover the powder more efficiently, and cooperate with the movement path of the pressing plate 702, thereby improving the powder sweeping efficiency of the device.

[0034] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrostatic powder spray recovery device, comprising a housing (1), characterized in that: A fan (2) is installed at the top of the housing (1), a filter cartridge (3) is installed at the top of the housing (1), a pulse backflush assembly (4) is installed outside the housing (1), a recovery tank (5) is provided at the bottom of the housing (1), a classification mechanism (6) is installed inside the housing (1), a moving mechanism (7) is provided inside the housing (1), a powder collecting mechanism (8) is provided at one end of the moving mechanism (7), and a filtering mechanism (9) is installed inside the housing (1); The classification mechanism (6) comprises a subdivided recovery box (601), a coarse powder recovery channel (602) and a coarse powder recovery box (603); the subdivided recovery box (601) is movably connected to the interior of the housing (1); a coarse powder recovery channel (602) is provided at the bottom of the interior of the housing (1); and the coarse powder recovery box (603) is movably connected to the interior of the housing (1); The moving mechanism (7) comprises a first servo motor (701), an extrusion plate (702) and a positioning rod (703); the first servo motor (701) is fixed to the outside of the housing (1); the positioning rod (703) is fixed to the inside of the housing (1); and the outside of the positioning rod (703) is slidably connected to the extrusion plate (702); The powder collecting mechanism (8) comprises a second servo motor (801) and a connecting disk (802); the second servo motor (801) is fixed to the outside of the extrusion plate (702); and the connecting disk (802) is fixed to the rotating end of the second servo motor (801).

2. The electrostatic powder spraying recovery device according to claim 1 is characterized in that: The coarse powder recovery channel (602) and the coarse powder recovery channel (602) are provided in two groups, the coarse powder recovery channel (602) and the coarse powder recovery box (603) are symmetrically distributed about the central axis of the subdivided recovery box (601), the subdivided recovery box (601) and the outer shell (1) are slidably connected, and the coarse powder recovery box (603) and the outer shell (1) are slidably connected.

3. The electrostatic powder spraying recovery device according to claim 1 is characterized in that: A bidirectional screw (704) is fixed to the rotating end of the first servo motor (701); the bidirectional screw (704) is rotatably connected to the housing (1); the first servo motor (701) is threadedly connected to the extrusion plate (702); two groups of the extrusion plates (702) are provided; the extrusion plates (702) are symmetrically distributed about the central axis of the positioning rod (703).

4. The electrostatic powder spray recovery device according to claim 1, characterized in that: A connecting rod (803) is fixed to the outside of the connecting disk (802), a transmission member (804) is rotatably connected to the inside of the extrusion plate (702), a cleaning block (805) is slidably connected to the inside of the extrusion plate (702), and bristles (806) are fixed to the bottom end of the cleaning block (805).

5. The electrostatic powder spray recovery device according to claim 4, characterized in that: A limiting groove is provided at one end of the transmission member (804), the outer wall of the connecting rod (803) fits into the limiting groove of the transmission member (804), the connecting rod (803) and the transmission member (804) are slidably connected, and a plurality of groups of teeth are provided at the bottom end of the transmission member (804).

6. The electrostatic powder spray recovery device according to claim 4, characterized in that: The top of the cleaning block (805) is provided with a plurality of groups of teeth, the transmission member (804) and the cleaning block (805) are meshingly connected, and the bristles (806) are provided with a plurality of groups, and the bristles (806) are distributed in an array.

7. The electrostatic powder spray recovery device according to claim 1, characterized in that: The filtering mechanism (9) comprises a filtering plate (901), a third servo motor (902) and an eccentric wheel (903); the filtering plate (901) is movably connected to the interior of the housing (1); the interior of the housing (1) is fixed with the third servo motor (902); the bottom end of the third servo motor (902) is fixed with the eccentric wheel (903); the interior of the filtering plate (901) is fixed with a sleeve (904); the interior of the sleeve (904) is threadedly connected with a threaded rod (905); the interior of the sleeve (904) is rotatably connected with a limit block (906); the exterior of the limit block (906) is fixed with a torsion spring (907); the interior of the housing (1) is fixed with a clamping plate (908); the exterior of the clamping plate (908) is fixed with a return spring (909).

8. The electrostatic powder spray recovery device according to claim 7, characterized in that: The outer wall of the filter plate (901) fits the inner wall of the outer shell (1), the filter plate (901) and the outer shell (1) are slidably connected, a plurality of groups of filter holes are provided at the top of the filter plate (901), and the contact end between the filter plate (901) and the eccentric wheel (903) is arranged in an arc shape.

9. The electrostatic powder spray recovery device according to claim 7, characterized in that: The limit blocks (906) are provided in two groups, and the limit blocks (906) are symmetrically distributed about the central axis of the sleeve (904). The torsion springs (907) are provided in two groups, and are symmetrically distributed about the central axis of the limit blocks (906). The torsion springs (907) are used to squeeze the limit blocks (906) and keep them rotating inwardly.

10. The electrostatic powder spray recovery device according to claim 7, characterized in that: The outer wall of the card plate (908) is close to the inner wall of the outer shell (1), the card plate (908) and the outer shell (1) are slidably connected, a plug hole is provided inside the card plate (908), and two groups of return springs (909) are provided, and the return springs (909) are used to squeeze the card plate (908) and keep it moving outward.

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