A powder pump used in powder spraying production lines

Abstract

The present invention discloses a powder pump for use in a powder coating production line, belonging to the field of powder coating. A powder pump for use in a powder coating production line comprises a support and a powder pump body, and further comprises: a cylindrical cover connected to the support via a reciprocating telescopic mechanism, wherein the powder pump body is fixedly mounted in the cylindrical cover, one end of the cylindrical cover is fixedly connected to a trumpet-shaped cover, the powder spraying port of the powder pump body is located in the trumpet-shaped cover and faces the same direction as the trumpet-shaped cover; a recovery pipe fixedly connected to the trumpet-shaped cover and communicated with the trumpet-shaped cover, wherein the input end of the recovery pipe is provided with an air suction component for generating negative pressure; the present invention can effectively reduce pollution to the production workshop and harm to people, and does not require manual on-site spraying work, making the spraying process safer and more efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of powder spraying, and in particular to a powder pump used in a powder spraying production line. Background Art

[0002] Powder spraying is the process of spraying powder coating onto the surface of a workpiece using powder spraying equipment. Under the action of static electricity, the powder will be evenly adsorbed on the surface of the workpiece to form a powdery coating; the powdery coating is then baked at high temperature to level and solidify, becoming a final coating with different effects; the spraying effect of powder spraying is superior to the painting process in terms of mechanical strength, adhesion, corrosion resistance, and aging resistance, but the cost is higher than the painting process.

[0003] In powder spraying production, workers generally use spraying equipment with a powder pump to spray workpieces hanging on the conveyor line. A large amount of dust is generated during the spraying process, so workers need to wear dust masks for a long time. However, the filtering effect of the dust mask is effective, and workers will still inhale a small amount of dust, which affects their health. In addition, the efficiency of manual spraying is low, and the workers' physical exertion will also be relatively large. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem of great harm and low efficiency of manual powder spraying in the prior art, and to propose a powder pump for use in a powder spraying production line.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A powder pump used in a powder spraying production line includes a support and a powder pump body, and also includes: a cylindrical cover connected to the support via a reciprocating telescopic mechanism, wherein the powder pump body is fixedly installed in the cylindrical cover, one end of the cylindrical cover is fixedly connected to a trumpet-shaped cover, the powder spraying port of the powder pump body is located in the trumpet-shaped cover and has the same orientation as the trumpet-shaped cover; a recovery pipe fixedly connected to the trumpet-shaped cover and communicated with the trumpet-shaped cover, wherein the input end of the recovery pipe is provided with an air suction component for generating negative pressure.

[0007] In order to drive the trumpet-shaped cover to move back and forth, preferably, the reciprocating telescopic mechanism includes a driving motor fixedly mounted on the side wall of the support, the output shaft of the driving motor is fixedly connected to a reciprocating screw, wherein the reciprocating screw is collinear with the axis of the trumpet-shaped cover, the side wall of the support is fixedly connected to a guide rod parallel to the reciprocating screw, the outer wall of the reciprocating screw is threadedly connected to a reciprocating slide that is slidably connected to the guide rod, and the cylindrical cover is fixedly connected to the reciprocating slide.

[0008] In order to remove the dust remaining in the trumpet-shaped cover, the suction assembly further includes a limit plate fixedly connected to the end of the guide rod, and a telescopic airbag is fixedly installed between the limit plate and the reciprocating slide, wherein the telescopic airbag is fixedly connected to an exhaust pipe and an intake pipe connected thereto, and a one-way valve is fixedly installed in the exhaust pipe and the intake pipe, and the recovery pipe and the end of the intake pipe are connected via a recovery assembly.

[0009] In order to collect the dust discharged from the recovery pipe, the recovery component further includes a recovery box fixedly connected to the side wall of the reciprocating slide, and an inlet and an outlet are respectively provided on both sides of the upper end of the recovery box, wherein the end of the recovery pipe is fixedly connected and connected to the inlet, and the end of the suction pipe is fixedly connected and connected to the outlet, a filter plate is installed in the recovery box, and the lower end side wall of the recovery box is provided with a cleaning port and a cover plate cooperating with the cleaning port.

[0010] In order to automatically clean the inner wall of the trumpet-shaped cover, further, an inner ring is rotatably connected to the inside of the trumpet-shaped cover, and a cleaning rod is connected to the inner ring through a shaking mechanism, wherein the outer wall of the cleaning rod is provided with a brush that is against the inner wall of the trumpet-shaped cover, and the outer wall of the trumpet-shaped cover is rotatably connected to the outer ring, and the outer ring and the inner ring are fixedly connected with magnets that attract each other, and the cylindrical cover is provided with a linkage component that drives the outer ring to rotate.

[0011] In order to improve the cleaning efficiency of the inner wall of the trumpet-shaped cover, the shaking mechanism further includes a sliding hole arranged on the side wall of the inner ring, the cleaning rod is slidably connected in the sliding hole, and the cleaning rod is fixedly connected to a shaking plate at one end close to the cylindrical cover, wherein the shaking plate and the inner ring are elastically connected through a shaking spring, and the inner wall of the trumpet-shaped cover is provided with a first arc surface protrusion distributed circumferentially, and the end of the cleaning rod close to the first arc surface protrusion is equipped with a roller that is against the inner wall of the trumpet-shaped cover.

[0012] In order to drive the outer ring to rotate automatically, the linkage assembly further includes a rotating shaft rotatably connected to the lower end of the cylindrical cover, a first gear is fixedly mounted on the rotating shaft, and a ring gear meshing with the first gear is fixedly mounted on the outer ring, wherein a second gear is mounted on the lower end of the rotating shaft through a one-way bearing, and a rack parallel to the reciprocating screw is fixedly connected to the support, and the rack is meshing with the second gear.

[0013] In order to clean the dust filtered on the filter plate, the inner bottom of the recovery box is further provided with a slide groove, and a slider is slidably connected in the slide groove, wherein the filter plate is fixedly connected to the upper end of the slider, and the lower end of the slider is provided with a shaking mechanism for driving the filter plate to move up and down.

[0014] In order to drive the filter plate to shake up and down automatically, the shaking-off mechanism further includes a pulley fixedly mounted on the lower end of the slider, and the pulley is pressed against the upper end of the rack, wherein the filter plate and the inner top of the recovery box are elastically connected by a strip of rubber, and the upper end of the rack is fixedly connected to a plurality of evenly distributed second arc-shaped protrusions.

[0015] In order to enable the trumpet-shaped cover to exhaust normally, preferably, the open end of the trumpet-shaped cover is provided with a strip-shaped slot, and the slot is located at the upper end of the trumpet-shaped cover.

[0016] Compared with the prior art, the present invention provides a powder pump for use in a powder coating production line, which has the following beneficial effects:

[0017] 1. The powder pump used in the powder spraying production line drives the reciprocating screw to rotate through the driving motor. The trumpet-shaped cover can cover the workpiece on the production line. At this time, most of the powder will be blocked by the trumpet-shaped cover when the powder pump body is spraying, thereby reducing the pollution to the production workshop and the harm to people. In addition, there is no need for manual on-site spraying work, and the spraying process is safer and more efficient.

[0018] 2. When the powder pump used in the powder spraying production line stretches the telescopic airbag through the reciprocating slide, the recovery box will suck air into the recovery pipe through the inlet, and the recovery pipe will suck air into the trumpet-shaped cover, thereby sucking away the dust remaining in the trumpet-shaped cover after spraying and filtering it through the filter plate to prevent the dust remaining in the trumpet-shaped cover from polluting the air.

[0019] 3. The powder pump used in the powder spraying production line, when the trumpet-shaped cover and the cylindrical cover slide toward the support to reset, the inner ring will drive the cleaning rod to sweep the inner circumference of the trumpet-shaped cover, so that the recovery pipe can suck away the dust accumulated on the inner wall of the trumpet-shaped cover, thereby completing the self-cleaning work of the trumpet-shaped cover, which is more convenient to use.

[0020] 4. When the powder pump used in the powder spraying production line passes through multiple second arc-surface convex blocks in sequence through the pulley, the pulley will drive the filter plate to shake up and down, thereby shaking the dust filtered on the filter plate to the inner bottom of the recovery box, thereby ensuring the filtering efficiency of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the axonometric structure of a powder pump applied to a powder spraying production line proposed by the present invention from a first perspective;

[0022] Figure 2 This is a schematic structural diagram from a second perspective of a powder pump applied to a powder spraying production line proposed by the present invention;

[0023] Figure 3This is a schematic diagram of the main cross-sectional structure of a powder pump applied to a powder spraying production line proposed by the present invention;

[0024] Figure 4 The present invention proposes a powder pump for powder coating production line Figure 3 Enlarged view of part A;

[0025] Figure 5 The present invention proposes a powder pump for powder coating production line Figure 3 Enlarged view of part B;

[0026] Figure 6 The present invention proposes a powder pump for powder coating production line Figure 3 Schematic diagram of the local structure.

[0027] Figure: 1. Support; 2. Column cover; 3. Trumpet cover; 4. Powder pump body; 5. Powder spray port; 6. Strip slot; 7. Drive motor; 8. Reciprocating screw; 9. Guide rod; 10. Reciprocating slide; 11. Recovery pipe; 12. Telescopic airbag; 13. Exhaust pipe; 14. Suction pipe; 15. Recovery box; 16. Outlet; 17. Inlet; 18. Filter plate; 19. Inner ring; 20. Cleaning rod; 21 , outer ring; 22, magnet; 23, brush; 24, rotating shaft; 25, first gear; 26, ring gear; 27, second gear; 28, rack; 29, cleaning port; 30, shaking plate; 31, sliding hole; 32, shaking spring; 33, roller; 34, first arc surface protrusion; 35, sliding groove; 36, slider; 37, pulley; 38, second arc surface protrusion; 39, strip rubber; 40, limit plate. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0030] Example 1:

[0031] Reference Figures 1-6A powder pump used in a powder spraying production line includes a support 1 and a powder pump body 4, and also includes: a cylindrical cover 2, connected to the support 1 through a reciprocating telescopic mechanism, wherein the powder pump body 4 is fixedly installed in the cylindrical cover 2, and one end of the cylindrical cover 2 is fixedly connected to a trumpet-shaped cover 3, and the powder spraying port 5 of the powder pump body 4 is located in the trumpet-shaped cover 3 and has the same direction as the trumpet-shaped cover 3; a recovery pipe 11, fixedly connected to the trumpet-shaped cover 3 and communicated with the trumpet-shaped cover 3, wherein the input end of the recovery pipe 11 is provided with an air suction component for generating negative pressure.

[0032] When in use, the support 1 is fixedly connected to the production line, and then the reciprocating telescopic mechanism can drive the trumpet-shaped cover 3 to slide back and forth. When the trumpet-shaped cover 3 moves in the direction away from the support 1, the trumpet-shaped cover 3 can cover the workpiece on the production line and eventually touch the wall of the production line. Then the workpiece hanging on the production line will be completely covered in the trumpet-shaped cover 3. At this time, the powder pump body 4 can complete the spraying of the workpiece in the trumpet-shaped cover 3 through the powder spraying port 5. During the spraying process, most of the powder coating will be blocked by the trumpet-shaped cover 3, thereby reducing pollution to the production workshop and harm to people, and there is no need to complete the spraying work manually. The process is safer and more efficient. When the trumpet-shaped cover 3 moves toward the direction close to the support 1, the powder pump body 4 is sprayed, and the conveying equipment will drive the suspended workpiece to enter the next process, and the conveying equipment will convey the next unsprayed workpiece to the position of the current spraying operation. When the trumpet-shaped cover 3 moves away from the support 1 again, the spraying of the next workpiece can be completed, thereby automatically completing the spraying of the workpiece. When the trumpet-shaped cover 3 is separated from the workpiece, the recovery pipe 11 will suck air into the trumpet-shaped cover 3 due to the suction component, thereby sucking away the dust remaining in the trumpet-shaped cover 3 after spraying, thereby preventing a large amount of dust from remaining in the trumpet-shaped cover 3.

[0033] In practice, a switch connected to the powder pump body 4 can be installed on the port of the trumpet-shaped cover 3. When the trumpet-shaped cover 3 hits the wall, the powder pump body 4 is automatically opened to complete the spraying work.

[0034] Furthermore, a strip groove 6 is provided at the open end of the trumpet-shaped cover 3 and is located at the upper end of the trumpet-shaped cover 3. When the trumpet-shaped cover 3 is pressed against the wall, the internal air can be discharged through the strip groove 6. On the other hand, the hanging rope for hanging the workpiece will just be stuck in the strip groove 6.

[0035] Example 2:

[0036] Reference Figure 3 , which is basically the same as Example 1, and further discloses a specific implementation plan of the reciprocating telescopic mechanism.

[0037] The reciprocating telescopic mechanism includes a driving motor 7 fixedly mounted on the side wall of the support 1, and the output shaft of the driving motor 7 is fixedly connected to a reciprocating screw 8, wherein the reciprocating screw 8 is collinear with the axis of the trumpet-shaped cover 3, and the side wall of the support 1 is fixedly connected to a guide rod 9 parallel to the reciprocating screw 8, and the outer wall of the reciprocating screw 8 is threadedly connected to a reciprocating slide 10 that is slidably connected to the guide rod 9, and the cylindrical cover 2 is fixedly connected to the reciprocating slide 10.

[0038] When in use, start the driving motor 7, the driving motor 7 will drive the reciprocating screw 8 to rotate, and the reciprocating screw 8 can drive the reciprocating slide 10 to slide back and forth along the outer wall of the reciprocating screw 8, thereby driving the trumpet-shaped cover 3 to slide back and forth. When the trumpet-shaped cover 3 moves in the direction away from the support 1, the trumpet-shaped cover 3 can cover the workpiece on the production line and eventually rest against the wall of the production line. As a result, the workpiece hanging on the production line will be completely covered in the trumpet-shaped cover 3. At this time, the powder pump body 4 can complete the spraying of the workpiece in the trumpet-shaped cover 3 through the powder spraying port 5. During the spraying process, most of the powder coating will be blocked by the trumpet-shaped cover 3, thereby reducing pollution to the production workshop and harm to people, and there is no need to manually complete the spraying work on site. The spraying process is safer and more efficient. When the trumpet-shaped cover 3 moves in the direction close to the support 1, the powder pump body 4 is sprayed. When the reciprocating slide 10 slides back and forth, the guide rod 9 is used to guide the reciprocating slide 10.

[0039] Example 3:

[0040] Reference Figure 1-Figure 3 as well as Figure 5-Figure 6 , which is basically the same as Example 2, further discloses a specific implementation scheme of the air intake component.

[0041] The suction assembly includes a limit plate 40 fixedly connected to the end of the guide rod 9, and a telescopic airbag 12 is fixedly installed between the limit plate 40 and the reciprocating slide 10, wherein the telescopic airbag 12 is fixedly connected to an exhaust pipe 13 and an intake pipe 14 connected thereto, and a one-way valve is fixedly installed in the exhaust pipe 13 and the intake pipe 14, and the recovery pipe 11 and the end of the intake pipe 14 are connected through a recovery assembly.

[0042] When the reciprocating slide 10 slides back and forth, the reciprocating slide 10 will intermittently squeeze and stretch the telescopic airbag 12. During squeezing, the telescopic airbag 12 will discharge the internal air through the exhaust pipe 13. During stretching, that is, when the trumpet-shaped cover 3 is separated from the workpiece, the telescopic airbag 12 will suck air into the recovery pipe 11, and the recovery pipe 11 will suck air into the trumpet-shaped cover 3, thereby sucking away the dust remaining in the trumpet-shaped cover 3 after spraying, completing the self-cleaning work of the trumpet-shaped cover 3.

[0043] Furthermore, the recovery assembly includes a recovery box 15 fixedly connected to the side wall of the reciprocating slide 10, and an inlet 17 and an outlet 16 are respectively provided on both sides of the upper end of the recovery box 15, wherein the end of the recovery pipe 11 is fixedly connected to and communicated with the inlet 17, and the end of the suction pipe 14 is fixedly connected to and communicated with the outlet 16, a filter plate 18 is installed in the recovery box 15, and a cleaning port 29 and a cover plate cooperating with the cleaning port 29 are provided on the side wall of the lower end of the recovery box 15;

[0044] When the telescopic airbag 12 inhales, it will draw air through the suction pipe 14, the suction pipe 14 will inhale the recovery box 15 through the outlet 16, the recovery box 15 will inhale the recovery pipe 11 through the inlet 17, and the recovery pipe 11 will inhale the trumpet-shaped cover 3, so that the dust remaining in the trumpet-shaped cover 3 after spraying can be sucked away and filtered through the filter plate 18, thereby preventing the dust remaining in the trumpet-shaped cover 3 from polluting the air.

[0045] Example 4:

[0046] Reference Figure 3-Figure 5 , which is basically the same as Example 3, and further, a specific implementation plan for cleaning the inner wall of the trumpet-shaped cover 3 is specifically added.

[0047] An inner ring 19 is rotatably connected to the trumpet-shaped cover 3, and a cleaning rod 20 is connected to the inner ring 19 through a shaking mechanism, wherein the outer wall of the cleaning rod 20 is provided with a brush 23 that abuts against the inner wall of the trumpet-shaped cover 3, and an outer ring 21 is rotatably connected to the outer wall of the trumpet-shaped cover 3, and the outer ring 21 and the inner ring 19 are fixedly connected with magnets 22 that attract each other, and a linkage component that drives the outer ring 21 to rotate is provided on the cylindrical cover 2; the linkage component includes a rotating shaft 24 rotatably connected to the lower end of the cylindrical cover 2, a first gear 25 is fixedly mounted on the rotating shaft 24, and a ring gear 26 that is meshed with the first gear 25 is fixedly mounted on the outer ring 21, wherein the lower end of the rotating shaft 24 is provided with a second gear 27 through a one-way bearing, and a rack 28 parallel to the reciprocating screw 8 is fixedly connected to the support 1, and the rack 28 is meshed with the second gear 27.

[0048] When the trumpet-shaped cover 3 and the cylindrical cover 2 slide toward the support 1 to reset, the cylindrical cover 2 will drive the rotating shaft 24 to move synchronously, and the rotating shaft 24 will drive the second gear 27 to sweep on the rack 28. The second gear 27 will drive the first gear 25 to rotate through the rotating shaft 24, and the first gear 25 will drive the outer ring 21 to rotate through the ring gear 26. The outer ring 21 will drive the inner ring 19 to rotate through two mutually attracted magnets 22, and the inner ring 19 will drive the cleaning rod 20 to rotate on the inner circle of the trumpet-shaped cover 3. As the cleaning rod 20 sweeps around, the brush 23 cleans the inner wall of the trumpet-shaped cover 3, so that the recovery tube 11 can absorb the dust accumulated on the inner wall of the trumpet-shaped cover 3, thereby completing the self-cleaning work of the trumpet-shaped cover 3, which is more convenient to use. When the cylindrical cover 2 slides toward the direction of the principle support 1, the second gear 27 will reverse under the action of the rack 28, but since the second gear 27 is installed on the rotating shaft 24 through a one-way bearing, the rotating shaft 24 will not be adjusted to reverse when the second gear 27 reverses.

[0049] The shaking mechanism includes a sliding hole 31 provided in the side wall of the inner ring 19. The cleaning rod 20 is slidably connected to the sliding hole 31. The end of the cleaning rod 20 close to the cylindrical cover 2 is fixedly connected to a shaking plate 30. The shaking plate 30 and the inner ring 19 are elastically connected via a shaking spring 32. The inner wall of the trumpet-shaped cover 3 is provided with first arc-surface protrusions 34 distributed circumferentially. The end of the cleaning rod 20 close to the first arc-surface protrusions 34 is equipped with a roller 33 that abuts against the inner wall of the trumpet-shaped cover 3.

[0050] When the cleaning rod 20 sweeps in a circular motion, the cleaning rod 20 drives the roller 33 to sweep in a circular motion on the inner wall of the trumpet-shaped cover 3, and the roller 33 indirectly presses against the first arc-surface protrusion 34. When the roller 33 presses against the first arc-surface protrusion 34, the cleaning rod 20 moves toward the opening end of the trumpet-shaped cover 3. When the roller 33 passes over the first arc-surface protrusion 34, the shaking spring 32 drives the cleaning rod 20 to reset. Therefore, the multiple first arc-surface protrusions 34 can make the cleaning rod 20 that sweeps in a circular motion still shake back and forth, thereby improving the effect of the brush 23 in cleaning the inner wall of the trumpet-shaped cover 3

[0051] Example 5:

[0052] Reference Figure 1-Figure 3 as well as Figure 6 , which is basically the same as Example 4, and further, a specific implementation scheme for self-cleaning the filter plate 18 is specifically added.

[0053] A slide groove 35 is provided at the inner bottom of the recovery box 15, and a slider 36 is slidably connected to the slide groove 35, wherein the filter plate 18 is fixedly connected to the upper end of the slider 36, and the lower end of the slider 36 is provided with a shaking-off mechanism for driving the filter plate 18 to move up and down. The shaking-off mechanism includes a pulley 37 fixedly mounted on the lower end of the slider 36, and the pulley 37 is tightly pressed against the upper end of the rack 28, wherein the filter plate 18 and the inner top of the recovery box 15 are elastically connected by a strip rubber 39, and the upper end of the rack 28 is fixedly connected to a plurality of evenly distributed second arc-surface protrusions 38;

[0054] When the reciprocating slide 10 moves back and forth, the reciprocating slide 10 will drive the recovery box 15 to move synchronously, and the recovery box 15 will drive the pulley 37 to reciprocate on the rack 28. When the pulley 37 presses against the second arc-surface protrusion 38, the pulley 37 will drive the slider 36 and the filter plate 18 to slide upward. When the pulley 37 passes over the second arc-surface protrusion 38, the elastic force of the strip rubber 39 will cause the filter plate 18 to slide downward and reset. Therefore, when the pulley 37 passes through multiple second arc-surface protrusions 38 in sequence, the pulley 37 will drive the filter plate 18 to shake up and down, thereby shaking off the dust filtered on the filter plate 18 to the inner bottom of the recovery box 15, thereby ensuring the filtration efficiency of the filter plate 18. When the recovery box 15 needs to be cleaned, the cover on the cleaning port 29 can be opened.

[0055] The powder pump used in the powder coating production line is used by fixing the support 1 to the production line, and then starting the drive motor 7. The drive motor 7 drives the reciprocating screw 8 to rotate, and the reciprocating screw 8 can drive the reciprocating slide 10 to slide back and forth along the outer wall of the reciprocating screw 8, thereby driving the trumpet-shaped cover 3 to slide back and forth. When the trumpet-shaped cover 3 moves in a direction away from the support 1, the trumpet-shaped cover 3 can cover the workpiece on the production line and eventually rest against the wall of the production line. Then, the workpiece hanging on the production line will be completely covered in the trumpet-shaped cover 3. At this time, the powder pump body 4 can complete the powder spraying in the trumpet-shaped cover 3 through the powder spraying port 5. During the spraying process of the workpiece, most of the powder coating will be blocked by the trumpet-shaped cover 3, thereby reducing the pollution to the production workshop and the harm to people, and there is no need to complete the spraying work manually on site, and the spraying process is safer and more efficient. When the trumpet-shaped cover 3 moves toward the direction close to the support 1, the powder pump body 4 is sprayed, and the conveying equipment will drive the suspended workpiece to enter the next process, and the conveying equipment will convey the next unsprayed workpiece to the position of the current spraying operation. When the trumpet-shaped cover 3 moves away from the support 1 again, the spraying work of the next workpiece can be completed, thereby automatically completing the spraying work of the workpiece.

[0056] When the reciprocating slide 10 slides back and forth, the reciprocating slide 10 will intermittently squeeze and stretch the telescopic airbag 12. During squeezing, the telescopic airbag 12 will discharge the internal air through the exhaust pipe 13. During stretching, that is, when the trumpet-shaped cover 3 is separated from the workpiece, the telescopic airbag 12 will absorb air through the suction pipe 14, and the suction pipe 14 will inhale air to the recovery box 15 through the outlet 16. The recovery box 15 will inhale air to the recovery pipe 11 through the inlet 17, and the recovery pipe 11 will inhale air to the trumpet-shaped cover 3, so that the dust remaining in the trumpet-shaped cover 3 after spraying can be sucked away and filtered through the filter plate 18, so as to prevent the dust remaining in the trumpet-shaped cover 3 from polluting the air.

[0057] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A powder pump used in a powder spraying production line, comprising a support (1) and a powder pump body (4), characterized in that: Also includes: The cylindrical cover (2) is connected to the support (1) via a reciprocating telescopic mechanism. The powder pump body (4) is fixedly mounted in the cylindrical cover (2), one end of the cylindrical cover (2) is fixedly connected to the trumpet-shaped cover (3), and the powder spraying port (5) of the powder pump body (4) is located in the trumpet-shaped cover (3) and faces the same direction as the trumpet-shaped cover (3); The recovery pipe (11) is fixedly connected to the trumpet-shaped cover (3) and communicates with the trumpet-shaped cover (3). The input end of the recovery pipe (11) is provided with an air suction component for generating negative pressure; the reciprocating telescopic mechanism comprises: a driving motor (7) fixedly mounted on the side wall of the support (1); the output shaft of the driving motor (7) is fixedly connected to a reciprocating screw (8); The reciprocating screw (8) is parallel to the axis of the trumpet-shaped cover (3); the side wall of the support (1) is fixedly connected to a guide rod (9) parallel to the reciprocating screw (8); the outer wall of the reciprocating screw (8) is threadedly connected to a reciprocating slide (10) slidably connected to the guide rod (9); the cylindrical cover (2) is fixedly connected to the reciprocating slide (10); and the support (1) is fixedly connected to a rack (28) parallel to the reciprocating screw (8); The air suction assembly comprises: a limit plate (40) fixedly connected to the end of the guide rod (9), a telescopic air bag (12) fixedly installed between the limit plate (40) and the reciprocating slide plate (10), The telescopic airbag (12) is fixedly connected to an exhaust pipe (13) and an intake pipe (14) in communication therewith, and one-way valves are fixedly installed in the exhaust pipe (13) and the intake pipe (14). The recovery pipe (11) and the end of the intake pipe (14) are connected via a recovery assembly; the recovery assembly comprises a recovery box (15) fixedly connected to the side wall of the reciprocating slide (10), and an inlet (17) and an outlet (16) are respectively provided on both sides of the upper end of the recovery box (15). The end of the recovery pipe (11) is fixedly connected to and communicates with the inlet (17), the end of the air intake pipe (14) is fixedly connected to and communicates with the outlet (16), a filter plate (18) is installed in the recovery box (15), and the lower end side wall of the recovery box (15) is provided with a cleaning port (29) and a cover plate that cooperates with the cleaning port (29); The inner bottom of the recovery box (15) is provided with a chute (35), and a slider (36) is slidably connected in the chute (35). The filter plate (18) is fixedly connected to the upper end of the slider (36), and the lower end of the slider (36) is provided with a shaking mechanism for driving the filter plate (18) to move up and down; the shaking mechanism includes: A pulley (37) is fixedly mounted on the lower end of the slider (36), and the pulley (37) is pressed against the upper end of the rack (28). The filter plate (18) is elastically connected to the inner top of the recovery box (15) via a strip of rubber (39), and the upper end of the rack (28) is fixedly connected to a plurality of evenly distributed second arc-surface protrusions (38).

2. The powder pump for use in a powder coating production line according to claim 1, characterized in that: An inner ring (19) is rotatably connected to the trumpet-shaped cover (3), and a cleaning rod (20) is connected to the inner ring (19) via a shaking mechanism. The outer wall of the cleaning rod (20) is provided with a brush (23) that abuts against the inner wall of the trumpet-shaped cover (3); the outer wall of the trumpet-shaped cover (3) is rotatably connected to an outer ring (21); the outer ring (21) and the inner ring (19) are fixedly connected with magnets (22) that attract each other; and the cylindrical cover (2) is provided with a linkage component that drives the outer ring (21) to rotate.

3. The powder pump for use in a powder coating production line according to claim 2, characterized in that: The shaking mechanism comprises: A sliding hole (31) is provided on the side wall of the inner ring (19), the cleaning rod (20) is slidably connected in the sliding hole (31), and a shaking plate (30) is fixedly connected to one end of the cleaning rod (20) close to the cylindrical cover (2). The shaking plate (30) and the inner ring (19) are elastically connected via a shaking spring (32), the inner wall of the trumpet-shaped cover (3) is provided with a first arc-shaped protrusion (34) distributed circumferentially, and the end of the cleaning rod (20) close to the first arc-shaped protrusion (34) is provided with a roller (33) that abuts against the inner wall of the trumpet-shaped cover (3).

4. The powder pump for use in a powder coating production line according to claim 2, wherein: The linkage component includes: A rotating shaft (24) connected to the lower end of the cylindrical cover (2) is rotatably mounted, a first gear (25) is fixedly mounted on the rotating shaft (24), and a ring gear (26) meshingly connected with the first gear (25) is fixedly mounted on the outer ring (21). The lower end of the rotating shaft (24) is provided with a second gear (27) via a one-way bearing, and the rack (28) is meshedly connected with the second gear (27).

5. The powder pump used in a powder coating production line according to claim 1, characterized in that: The open end of the trumpet-shaped cover (3) is provided with a strip-shaped slot (6), which is located at the upper end of the trumpet-shaped cover (3).

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