A powder spraying device for powder coating detection

Abstract

The present invention discloses a powder spraying device for powder coating detection, aiming to solve the deficiencies that color bleeding is likely to occur during the powder coating detection spraying process, and powder recovery is inconvenient, which is likely to cause environmental pollution. The invention includes a dust suction mechanism, a column, and a turntable rotatably installed on the column. A plurality of powder spraying chambers are circumferentially and spacedly arranged on the turntable. A dust collection hole is provided on the column. A dust suction pipe is connected between the dust suction mechanism and the dust collection hole, and the powder spraying chamber is communicated with the dust collection hole. The powder spraying device for powder coating detection in this patent has good powder recovery effect during the powder spraying detection process of the powder coating, is not likely to cause environmental pollution, will not have the phenomenon of color bleeding, and is beneficial to improving work efficiency.

Description

Technical Field

[0001] The present invention relates to a powder coating detection device, and more specifically, it relates to a powder spraying device for powder coating detection. Background Art

[0002] At present, during the production process of powder coatings, detection is required. During detection, the powder coating is sprayed on the workpiece and then baked to check whether the powder product meets the requirements. The conventional method is to place the workpiece in the spraying chamber and spray the powder coating onto the workpiece in the spraying chamber. This spraying method is inconvenient for powder recovery, prone to environmental pollution; if different powders are sprayed, it is not easy to clean and is prone to color bleeding; when the spraying amount is large, the work efficiency is low. Summary of the Invention

[0003] In order to overcome the above deficiencies, the present invention provides a powder spraying device for powder coating detection, which has good powder recovery effect during the powder spraying and detection process of powder coatings, is not prone to environmental pollution, does not have color bleeding phenomenon, and is beneficial to improving work efficiency.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions: A powder spraying device for powder coating detection includes a dust suction mechanism, a column, and a turntable rotatably installed on the column. A plurality of powder spraying chambers are circumferentially spaced on the turntable. A dust collection hole is provided on the column. A dust suction pipe is connected between the dust suction mechanism and the dust collection hole, and the powder spraying chamber is communicated with the dust collection hole.

[0005] A plurality of powder spraying chambers are circumferentially spaced on the turntable. Each powder spraying chamber is used for the spraying operation of different color powder coatings, which can avoid color bleeding. The turntable is rotatably installed on the column, which is convenient for selecting the corresponding powder spraying chamber. The powder during the spraying process is adsorbed by the dust suction mechanism, and the powder recovery effect is good, not prone to environmental pollution. Moreover, multiple powder spraying chambers can perform powder spraying operations simultaneously, which can improve work efficiency. The powder spraying device for powder coating detection of this patent has good powder recovery effect during the powder spraying and detection process of powder coatings, is not prone to environmental pollution, does not have color bleeding phenomenon, and is beneficial to improving work efficiency.

[0006] Preferably, a plurality of inner suction holes are densely distributed on the inner wall of the dust collection hole, and a plurality of outer suction holes communicated with the inner suction holes are densely distributed on the inner wall of the powder spraying chamber; a movable cover plate is installed on the inner wall of the powder spraying chamber, and the movement of the cover plate realizes the opening and closing of the outer suction holes.

[0007] When the powder spraying chamber needs to perform powder spraying operation, the cover plate moves to open the outer suction holes, and the powder spraying chamber is communicated with the dust collection hole, which is convenient for adsorbing the powder in the powder spraying chamber. For the powder spraying chambers without powder spraying operation, the cover plates cover the outer suction holes, concentrating the pressure to adsorb the powder spraying chamber during powder spraying operation, improving the powder adsorption effect, and also preventing color bleeding between powder spraying chambers.

[0008] Preferably, the turntable is provided with mounting holes, and the turntable is sleeved on the column through the mounting holes. An annular groove is provided on the inner wall of the mounting hole, and a communication cavity is formed between the annular groove and the outer wall of the column. The inner suction holes and the outer suction holes are both communicated with the communication cavity.

[0009] The arrangement of the communication cavity is beneficial to the adsorption of the powder in the powder spraying cavity.

[0010] Preferably, a locking hole is provided on the side wall at the upper end of the column, and a locking mechanism is arranged at the corresponding position of each powder spraying cavity at the upper end of the turntable. The locking mechanism includes a support, a positioning column, and a locking screw. The positioning column is movably inserted into the support, a buffer spring is installed between the positioning column and the support, the front end of the positioning column is in a frustum shape, the locking screw and the positioning column are movably sleeved together, the locking screw is screwed to the support, and the front end of the locking screw retracts into the positioning column.

[0011] After the turntable rotates to the in-place position, the positioning column just inserts into the end of the locking hole to achieve positioning, and then the locking screw is rotated to make the locking screw firmly connected to the locking hole to achieve reliable positioning of the turntable. Through this structural arrangement, the precise positioning of the turntable is realized, which facilitates the locking operation of the turntable. When the turntable needs to be rotated, the locking screw is loosened to make the front end of the locking screw retract into the positioning column. Since a buffer spring is arranged between the positioning column and the support, when a rotational force is applied to the turntable at this time, the turntable can rotate to achieve position switching.

[0012] Preferably, powder spraying openings are provided on the side wall of the turntable in one-to-one correspondence with the powder spraying cavities.

[0013] The arrangement of the powder spraying openings facilitates the powder spraying operation on the workpieces in the powder spraying cavities.

[0014] Preferably, the dust suction mechanism includes a dust suction cylinder, a dust suction cloth bag, and a suction fan. The dust suction cloth bag is installed in the dust suction cylinder, a rotating seat is installed below the dust suction cloth bag in the dust suction cylinder, a rotating shaft is installed on the suction fan, the rotating shaft drives the rotating seat to operate, a brush rod is installed on the rotating seat, bristles are installed on the brush rod, and the bristles are arranged close to the inner wall of the dust suction cloth bag; a storage groove is provided on the rotating seat, a dust outlet hole is provided at the bottom of the storage groove, the storage groove converges from top to bottom to the dust outlet hole, a falling hole is provided at the bottom of the dust suction cylinder, the rotating seat rotates to align or stagger the dust outlet hole with the falling hole, and a collection bag is detachably connected to the lower end of the falling hole; the suction port of the suction fan is communicated with the dust suction cylinder.

[0015] When the dust suction mechanism works, the exhaust fan starts to pump air into the dust suction cylinder, thereby creating a negative pressure inside the dust suction cylinder, and the powder is adsorbed and collected in the dust suction bag. The operation of the exhaust fan drives the rotating seat to rotate, and the brush rod connected to the rotating seat rotates synchronously with the rotating seat. The bristles scrape the powder adhering to the inner wall of the dust suction bag, ensuring the air permeability of the dust suction bag, making the air flow smooth, and facilitating the formation of negative pressure. The powder in the dust suction bag falls into the storage groove. When the rotating seat rotates to the position where the dust outlet hole is aligned with the falling hole, the powder falls into the collection bag. The collection bag is regularly removed from the rotating seat to pour out the collected powder, and there is no need to regularly clean the dust suction bag.

[0016] Preferably, a jitter sleeve capable of axial movement is installed between the rotating seat and the dust suction bag. The dust suction bag is in a relaxed state. The upper end of the jitter sleeve is connected to the dust suction bag, and the lower end of the jitter sleeve is sleeved on the rotating seat. A positioning spring is installed between the rotating seat and the jitter sleeve. A positioning seat is arranged inside the dust suction cylinder, and the upper part of the jitter sleeve abuts against the positioning seat; a contact rod is arranged on the jitter sleeve, and a turntable driven by a rotating shaft is installed inside the dust suction cylinder. A lever is connected to the turntable, and the lever can abut against the contact rod and push the jitter sleeve to move.

[0017] During the operation of the exhaust fan, the turntable is driven to rotate. The lever on the turntable toggles the jitter sleeve to move downward. When the lever slides away from the contact rod, under the action of the positioning spring, the dust suction bag moves upward and returns to its original position, thereby generating a jitter effect, so that the powder adsorbed on the inner wall of the dust suction bag can be shaken off, preventing the powder adhering to the inner wall of the dust suction bag from affecting the ventilation performance and dust suction effect.

[0018] Preferably, a reducer is installed between the dust suction cylinder and the rotating shaft. The reducer is provided with an input shaft and two output shafts. The input shaft is connected to the rotating shaft. A driving gear is installed on one output shaft, and a toothed ring is arranged on the rotating seat. The driving gear meshes with the toothed ring for transmission, and the other output shaft is connected to the turntable.

[0019] The rotational speed of the rotating shaft on the exhaust fan is increased to ensure the wind force of the exhaust fan. The rotational speeds of the rotating seat and the turntable are slow, and speed reduction is achieved through the reducer, with a simple structure and reliable operation.

[0020] Preferably, an installation groove is provided at the bottom of the dust suction cylinder, and the rotating seat is rotatably installed in the installation groove. A convex ring is provided on the outer wall of the rotating seat, and a limiting block is connected to the dust suction cylinder. The limiting block abuts against the upper end face of the convex ring.

[0021] The rotating seat rotates in the installation groove, being stable and reliable. The limiting block plays a good limiting role for the rotating seat, preventing the rotating seat from moving axially.

[0022] Preferably, the positioning seat is provided with a regular hexagon anti-rotation hole, the upper part of the shaking sleeve is provided with an anti-rotation part with a regular hexagon structure, the lower part of the shaking sleeve is provided with a circular connecting part, and the anti-rotation part is inserted into the anti-rotation hole in a matching manner; the upper end of the rotating seat is provided with an extension sleeve, and the extension sleeve is sleeved with the connecting part. The setting of the anti-rotation part prevents the shaking sleeve from rotating during the movement process, ensuring the reliable operation of the rotating seat.

[0023] Compared with the prior art, the beneficial effects of the present invention are: (1) The powder spraying device for powder coating detection has good powder recovery effect during the powder spraying and detection process of the powder coating, is not easy to cause environmental pollution, will not have the phenomenon of color bleeding, and is beneficial to improving work efficiency; (2) During the process of the dust suction mechanism adsorbing the powder in the powder spraying cavity, the dust is not easily attached to the dust suction cloth bag, ensuring the adsorption effect, and the powder in the dust suction cloth bag can be automatically cleaned without the need to clean the dust suction cloth bag after shutdown. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic installation structure diagram of the turntable of the present invention;

[0025] Figure 2 is a cross-sectional view of the present invention;

[0026] Figure 3 is a schematic structure diagram of the dust suction mechanism of the present invention;

[0027] Figure 4 is of the present invention Figure 2 partial enlarged schematic view at A in;

[0028] Figure 5 is of the present invention Figure 3 partial enlarged schematic view at B in;

[0029] In the figure: 1. Dust suction mechanism, 2. Column, 3. Turntable, 4. Powder spraying cavity, 5. Powder spraying opening, 6. Dust collection hole, 7. Dust suction pipe, 8. Lower flange, 9. Upper flange, 10. Locking hole, 11. Support, 12. Positioning column, 13. Locking screw, 14. Buffer spring, 15. Inner suction hole, 16. Outer suction hole, 17. Cover plate, 18. Operating rod, 19. Communication cavity, 20. Dust suction cylinder, 21. Dust suction cloth bag, 22. Exhaust fan, 23. Air inlet, 24. Rotating seat, 25. Rotating shaft, 26. Brush rod, 27. Brush bristles, 28. Storage groove, 29. Dust outlet hole, 30. Falling hole, 31. Collection bag, 32. Installation groove, 33. Convex ring, 34. Limit block, 35. Shaking sleeve, 36. Positioning spring, 37. Positioning seat, 38. Abutting rod, 39. Turntable, 40. Poking rod, 41. Reducer, 42. Driving gear, 43. Gear ring, 44. Anti-rotation part, 45. Connecting part, 46. Extension sleeve, 47. Convex platform, 48. Spring seat. DETAILED DESCRIPTION OF THE INVENTION

[0030] The technical solution of the present invention will be further specifically described below through specific embodiments in conjunction with the accompanying drawings:

[0031] Embodiment: A powder spraying device for powder coating detection (see attached Figure 1 to attached Figure 5 ), including a dust suction mechanism 1, a column 2, and a turntable 3 rotatably mounted on the column. The column is provided with a stepped surface, and the turntable is supported on the stepped surface. A plurality of powder spraying chambers 4 are circumferentially spaced on the turntable. In this embodiment, six powder spraying chambers are evenly arranged. Powder spraying openings 5 are provided on the side wall of the turntable corresponding to the powder spraying chambers one by one. A dust collection hole 6 is provided on the column. A dust suction pipe 7 is connected between the dust suction mechanism and the dust collection hole, and the powder spraying chamber is communicated with the dust collection hole. A lower flange 8 is provided at the upper end of the column, and the lower end of the dust suction pipe is connected to an upper flange 9. The upper flange and the lower flange are tightly connected together. A locking hole 10 is provided on the side wall of the upper end of the column. The end of the locking hole gradually increases outward. The locking hole is provided on the side wall of the lower flange. A locking mechanism is provided at the corresponding position of each powder spraying chamber at the upper end of the turntable. The locking mechanism includes a support 11, a positioning column 12, and a locking screw 13. The positioning column is movably inserted into the support. A buffer spring 14 is installed between the positioning column and the support. The front end of the positioning column is in a frustum shape. The locking screw and the positioning column are movably sleeved together. The locking screw is screwed to the support, and the front end of the locking screw retracts into the positioning column.

[0032] A number of inner suction holes 15 are densely arranged on the inner wall of the dust collection hole, and a number of outer suction holes 16 communicating with the inner suction holes are densely arranged on the inner wall of the powder spraying chamber; a movable cover plate 17 is installed on the inner wall of the powder spraying chamber. The movement of the cover plate realizes the opening and closing of the outer suction holes. The upper end of the cover plate is connected to an operating rod 18. The operating rod is placed in the powder spraying chamber. Holding the operating rod to move the cover plate is more convenient. An installation hole is provided on the turntable. The turntable is sleeved on the column through the installation hole. An annular groove is provided on the inner wall of the installation hole. A communication cavity 19 is formed between the annular groove and the outer wall of the column. The inner suction holes and the outer suction holes are both communicated with the communication cavity.

[0033] The dust collection mechanism includes a dust collection cylinder 20, a dust collection bag 21, and an exhaust fan 22. The dust collection bag is installed in the dust collection cylinder. An air inlet 23 is provided at the upper end of the dust collection cylinder. The upper end of the air inlet is connected to the dust collection pipe, and the lower end of the air inlet is connected to the dust collection bag. A rotating seat 24 is installed below the dust collection bag in the dust collection cylinder. A rotating shaft 25 is installed on the exhaust fan. The rotating shaft drives the rotating seat to operate. A brush rod 26 is installed on the rotating seat. Four brush rods are evenly arranged. Brushes 27 are installed on the brush rod. The brushes are arranged close to the inner wall of the dust collection bag. A storage groove 28 is provided on the rotating seat. A dust outlet hole 29 is provided at the bottom of the storage groove. The storage groove gathers toward the dust outlet hole from top to bottom. A drop hole 30 is provided at the bottom of the dust collection cylinder. The rotating seat rotates to align or stagger the dust outlet hole with the drop hole. The lower end of the drop hole can be detachably connected to a collection bag 31. The air outlet of the exhaust fan is connected to the dust collection cylinder. A mounting groove 32 is provided at the bottom of the dust collection cylinder, and the rotating seat is rotatably installed in the mounting groove. A convex ring 33 is provided on the outer wall of the rotating seat. A limit block 34 is connected to the dust collection cylinder, and the limit block is close to the upper end surface of the convex ring.

[0034] A shaking sleeve 35 capable of axial movement is installed between the rotating seat and the dust bag, the dust bag is in a relaxed state, the upper end of the shaking sleeve is connected to the dust bag, the lower end of the shaking sleeve is sleeved together with the rotating seat, a positioning spring 36 is installed between the rotating seat and the shaking sleeve, a positioning seat 37 is arranged in the dust cylinder, and the upper part of the shaking sleeve abuts on the positioning seat; an abutment rod 38 is arranged on the shaking sleeve, a turntable 39 driven by a rotating shaft is installed in the dust cylinder, and a lever 40 is connected to the turntable, and the lever can abut on the abutment rod and push the shaking sleeve to move.

[0035] A reducer 41 is installed between the dust collector and the rotating shaft. The reducer is provided with an input shaft and two output shafts. The input shaft is connected to the rotating shaft. A driving gear 42 is installed on one output shaft. A gear ring 43 is provided on the rotating seat. The driving gear meshes with the gear ring for transmission. The other output shaft is connected to the turntable. A regular hexagonal anti-rotation hole is provided on the positioning seat. A regular hexagonal anti-rotation part 44 is provided on the upper part of the shaking sleeve. A circular connecting part 45 is provided on the lower part of the shaking sleeve. The anti-rotation part and the anti-rotation hole are adapted to be inserted together. An extension sleeve 46 is provided on the upper end of the rotating seat. The extension sleeve is sleeved together with the connecting part. A boss 47 is provided at the lower end of the anti-rotation part. The boss abuts on the positioning seat. A spring seat 48 is provided in the dust collector. The spring seat is placed between the rotating seat and the positioning seat. The positioning spring abuts between the spring seat and the boss.

[0036] Multiple powder spraying chambers are arranged at intervals on the turntable. Each powder spraying chamber is used for spraying different colors of powder coatings to avoid the phenomenon of color mixing. The turntable is rotatably mounted on the column, which is convenient for selecting the corresponding powder spraying chamber. The powder in the spraying process is adsorbed by the dust suction mechanism, and the powder recovery effect is good, which is not easy to cause environmental pollution. In addition, multiple powder spraying chambers can be used for powder spraying at the same time, which can improve work efficiency.

[0037] When the dust collection mechanism is working, the exhaust fan starts to exhaust air from the dust collection cylinder, thereby forming a negative pressure in the dust collection cylinder, and the powder is adsorbed and collected in the dust bag. The exhaust fan drives the rotating seat to operate, and the brush rod connected to the rotating seat rotates synchronously with the rotating seat. The bristles scrape off the powder attached to the inner wall of the dust bag to ensure the air permeability of the dust bag, making the airflow smooth and conducive to the formation of negative pressure. During the operation of the exhaust fan, the turntable is driven to rotate, and the lever on the turntable drives the shaking sleeve to move downward. When the lever slides away from the abutment rod, the dust bag moves upward and returns to its position under the action of the positioning spring, thereby producing a shaking effect, so that the powder adsorbed on the inner wall of the dust bag can be shaken off, preventing the powder attached to the inner wall of the dust bag from affecting the ventilation performance and dust collection effect. The powder in the dust bag falls into the storage groove. When the rotating seat rotates to the position where the dust outlet hole is aligned with the drop hole, the powder falls into the collection bag. The collection bag is regularly removed from the rotating seat to dump the collected powder without the need to regularly clean the dust bag.

[0038] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A powder spraying device for powder coating detection, characterized in that, The utility model comprises a dust suction mechanism, a column, and a turntable rotatably mounted on the column, wherein a plurality of powder spraying chambers are arranged at intervals on the turntable in the circumferential direction, a dust collecting hole is arranged on the column, a dust suction pipe is connected between the dust suction mechanism and the dust collecting hole, and the powder spraying chamber and the dust collecting hole are communicated; the dust suction mechanism comprises a dust collection cylinder, a dust collection bag, and an exhaust fan, the dust collection bag is installed in the dust collection cylinder, a rotating seat is installed below the dust collection bag in the dust collection cylinder, a rotating shaft is installed on the exhaust fan, the rotating shaft drives the rotating seat to rotate, a brush rod is installed on the rotating seat, bristles are installed on the brush rod, and the bristles are arranged close to the inner wall of the dust collection bag; a storing groove is arranged on the rotating seat, a dust outlet hole is arranged at the bottom of the storing groove, the storing groove gathers toward the dust outlet hole from top to bottom, a drop hole is arranged at the bottom of the dust collection cylinder, the rotating seat rotates to align or stagger the dust outlet hole with the drop hole, and the lower end of the drop hole can be detachably connected with the collection bag; the exhaust port of the exhaust fan is communicated with the dust collection cylinder.

2. The powder spraying device for powder coating detection according to claim 1, characterized in that, A plurality of inner suction holes are densely distributed on the inner wall of the dust collecting hole, and a plurality of outer suction holes connected with the inner suction holes are densely distributed on the inner wall of the powder spraying chamber; a movable cover plate is installed on the inner wall of the powder spraying chamber, and the cover plate moves to realize the opening and closing of the outer suction holes.

3. The powder spraying device for powder coating detection according to claim 2, characterized in that, The turntable is provided with a mounting hole, through which the turntable is fitted together with the column. An annular groove is provided on the inner wall of the mounting hole, and a connecting cavity is formed between the annular groove and the outer wall of the column. Both the inner suction hole and the outer suction hole are connected to the connecting cavity.

4. A powder spraying device for powder coating detection according to claim 1, characterized in that, A locking hole is provided on the side wall at the upper end of the column, and a locking mechanism is provided at the corresponding position of each powder spraying chamber at the upper end of the turntable. The locking mechanism includes a support, a positioning column, and a locking screw. The positioning column is movably inserted into the support, and a buffer spring is installed between the positioning column and the support. The front end of the positioning column is a truncated cone structure, and the locking screw and the positioning column are movably mounted together. The locking screw is connected to the support screw, and the front end of the locking screw is retracted in the positioning column.

5. The powder spraying device for powder coating detection according to claim 1, characterized in that Powder spraying openings are arranged on the side wall of the turntable and in correspondence with the powder spraying chamber.

6. The powder spraying device for powder coating detection according to claim 1, characterized in that, A shaking sleeve that can move axially is installed between the rotating seat and the dust bag, the dust bag is in a relaxed state, the upper end of the shaking sleeve is connected to the dust bag, the lower end of the shaking sleeve is sleeved together with the rotating seat, a positioning spring is installed between the rotating seat and the shaking sleeve, a positioning seat is arranged in the dust cylinder, and the upper part of the shaking sleeve abuts on the positioning seat; an abutment rod is arranged on the shaking sleeve, a turntable driven by a rotating shaft is installed in the dust cylinder, a shifting rod is connected to the turntable, and the shifting rod can abut on the abutment rod and push the shaking sleeve to move.

7. The powder spraying device for powder coating detection according to claim 6, characterized in that, A reducer is installed between the dust collector and the rotating shaft. The reducer is provided with an input shaft and two output shafts. The input shaft is connected to the rotating shaft. A driving gear is installed on one output shaft. A gear ring is provided on the rotating seat. The driving gear meshes with the gear ring for transmission. The other output shaft is connected to the turntable.

8. The powder spraying device for powder coating detection according to claim 5, characterized in that, The bottom of the dust collector is provided with an installation groove, the rotating seat is rotatably installed in the installation groove, a convex ring is provided on the outer wall of the rotating seat, and a limit block is connected to the dust collector, and the limit block is close to the upper end surface of the convex ring.

9. The powder spraying device for powder coating detection according to claim 6, characterized in that, A regular hexagonal anti-rotation hole is provided on the positioning seat, a regular hexagonal anti-rotation portion is provided on the upper part of the shaking sleeve, a circular connecting portion is provided on the lower part of the shaking sleeve, and the anti-rotation portion and the anti-rotation hole are adapted and inserted together; an extension sleeve is provided on the upper end of the rotating seat, and the extension sleeve is inserted together with the connecting portion.

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