Feeding device for powder coating manufacturing

Abstract

The invention relates to the technical field of powder coating feeding, in particular to a feeding device for powder coating manufacturing, which comprises a bottom box, a top box is slidably connected in the bottom box, a plurality of tension springs are arranged between the bottom box and the top box, a screening part is rotatably connected in the top box, and a screening feeding mechanism is arranged in the screening part. The screening feeding mechanism comprises two turning plates rotationally connected to the screening part, a plurality of fine screening holes are formed in the side faces of the two turning plates and the screening part, and a plurality of large screening holes are formed in the side, away from the turning plates, of the screening part. The multiple inserting rods can correspondingly dredge and clean the fine screen holes and the large screen holes 29, the whole cleaning process is simple and rapid, and the situation that the whole screening piece is blocked after being used for screening for a long time, and the feeding efficiency of the whole equipment is affected can be effectively prevented.

Description

Technical Field

[0001] The invention relates to the technical field of powder coating feeding, in particular to a feeding device for powder coating manufacturing. Background Art

[0002] Powder coatings are synthetic resin coatings in a solid powder form, composed of solid resin, pigments, fillers, and additives. Unlike conventional solvent-based and water-based coatings, their dispersion medium is air, not solvent or water. They are characterized by zero solvent pollution, 100% film formation, and low energy consumption. Powder coatings are classified into two categories: thermoplastic and thermosetting.

[0003] In the prior art, most powder coatings are processed and used in the traditional feeding method, that is, the powder coating is poured into the mixing barrel or stirring barrel through the feeding port for processing. In order to ensure the uniformity of the powder coating, the powder coating is usually screened during feeding. However, the screening device in the existing feeding device can only screen single-particle powder coatings. For example, after the feeding device screens finer powder coatings, if the feeding device needs to screen powder coatings with larger particles, the screen in the feeding device needs to be replaced, which is more cumbersome. In addition, the screen inside the existing feeding device may be clogged after screening the coating for a long time, and the screen is usually installed inside the feeding device, which is more troublesome to clean. If it cannot be cleaned in time, the feeding device may be clogged, affecting its use. Summary of the Invention

[0004] The purpose of the present invention is to provide a feeding device for powder coating production to solve the problems raised in the above background technology.

[0005] The cam is provided with a plurality of springs, and the cam is provided with a plurality of rollers, and the rollers are connected with the rollers in a direction of rotation.

[0006] Preferably, a gear is fixedly sleeved on the outer side wall of the flip shaft, and the gear is meshed with the gear plate.

[0007] Preferably, a fixing piece is fixedly connected to the outer side wall of the top box, an outer ring is fixedly connected to the fixing piece, and the outer ring is in rolling contact with the universal roller.

[0008] Preferably, a threaded rod is fixedly connected to the outer wall of the screening element, and the end of the threaded rod away from the screening element is rotated to pass through the outside of the top box, and a ring is threadedly sleeved on the outer wall of the threaded rod, and both sides of the ring are fixedly connected to a limiting spring rod, and the end of the limiting spring rod away from the ring is fixedly connected to the outer wall of the top box, and a magnetic ring is fixedly connected to the outer wall of the ring.

[0009] Preferably, the outside of the top box is fixedly connected to a side arm, a drive motor is provided on the outer wall of the side arm, a turntable is provided at the output end of the drive motor, both sides of the turntable are fixedly connected to a limit rail, the inner wall of the limit rail is slidably connected to a trigger magnet, a tension spring is provided at the tail of the trigger magnet, the end of the tension spring away from the trigger magnet is fixedly connected to the inner wall of the limit rail, and the magnetic poles of the trigger magnet are the same as those of the magnetic ring.

[0010] Preferably, a swing arm is rotatably connected to the outer side wall of the rotating wheel, and one end of the swing arm away from the rotating wheel is rotatably connected to the outer side wall of the support arm.

[0011] Preferably, slide rails are provided on both sides of the top box, and a cleaning mechanism is provided inside the slide rails.

[0012] Preferably, the cleaning mechanism includes a magnetic plate slidably arranged inside the slide rail, a tension spring is arranged inside the slide rail, the other end of the tension spring is fixedly connected to the outer wall of the magnetic plate, and an insertion rod is arranged on the magnetic plate. The multiple insertion rods on the magnetic plates on both sides are of different sizes and thicknesses. External magnetic blocks are arranged on both sides of the screening element, and the magnetic poles of the external magnetic blocks are the same as the magnetic poles of the magnetic plate.

[0013] Preferably, discharge slopes are provided on both sides of the top box, and storage boxes are provided on both sides of the top box.

[0014] Preferably, a discharge port is provided inside the bottom box, and material guide slopes are provided on both sides of the discharge port.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Through the setting of mechanisms such as the flip plate and the large sieve holes, when it is necessary to screen finer powder coatings, the flip plate can be turned upwards and the fine powder coatings can be screened through multiple fine sieve holes. If the entire feeding device is feeding coarse powder coatings, the entire screening component can be flipped over and the large sieve holes can be used to screen and feed the coarse coatings. By flexibly switching between two different screening methods, the entire feeding device can be made more efficient and more flexible to use.

[0017] Through the setting of mechanisms such as external magnetic blocks, when the screening element is flipped to switch the screening mode, multiple insertion rods will correspondingly clear the fine screen holes and large screen holes 29. The entire cleaning process is simple and fast, which can effectively prevent the entire screening element from being blocked after a long screening period, affecting the loading efficiency of the entire equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the present invention;

[0020] Figure 3 It is a side structural schematic diagram of the present invention;

[0021] Figure 4 for Figure 3 A magnified view of middle A;

[0022] Figure 5 It is a schematic diagram of the local structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the flip plate of the present invention in a flipping state;

[0024] Figure 7 It is a schematic structural diagram of the screening element of the present invention;

[0025] Figure 8 Schematic diagram of the internal structure of the screening element of the present invention;

[0026] Figure 9 Schematic diagram of the external structure of the present invention;

[0027] Figure 10 for Figure 9 Enlarged view of middle B;

[0028] Figure 11 It is a schematic diagram of the external structure of the present invention.

[0029] In the accompanying drawings, the list of components represented by each number is as follows: 1. Bottom box; 2. Top box; 3. Screening element; 4. Flip plate; 5. Support arm; 6. Tension spring; 7. Side arm; 8. Drive motor; 9. Rotor; 10. Limit rail; 11. Trigger magnet; 12. Tension spring; 13. Swing arm; 14. Limit spring rod; 15. Threaded rod; 16. Magnetic ring; 17. Ring; 18. Tension spring; 19. Material guide slope; 20. Magnetic plate; 21. Insert rod; 22. Fixing part; 23. Outer ring; 24. Slide rod; 25. Reset spring; 26. Gear; 27. Connecting rod; 28. Tooth plate; 29. ​​Large sieve hole; 30. External magnetic block; 31. Discharge slope; 32. Storage box; 33. Discharge port; 34. Flip axis. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figure 1 - Figure 11 The sieve 3 is a kind of sieve feeding device for manufacturing powder coating, comprising a bottom box 1, the interior of the bottom box 1 is slidably connected to the top box 2, a plurality of tension springs 6 are arranged between the bottom box 1 and the top box 2, the top box 2 is rotatably connected to the screening piece 3, and the screening feeding mechanism is provided inside the screening piece 3. The screening feeding mechanism comprises two flip plates 4 rotatably connected to the screening piece 3, the two flip plates 4 and the side surfaces of the screening piece 3 are provided with a plurality of fine sieve holes, and the side of the screening piece 3 away from the flip plate 4 is provided with a plurality of large sieve holes 29. The interior of the screening piece 3 is slidably connected with a sliding rod 24, and a universal roller is arranged at the end of the sliding rod 24. A return spring 25 is sleeved on the outer wall of the sliding rod 24, and a tooth plate 28 is fixedly connected to the sliding rod 24, and the tooth plate 28 slides through the interior of the screening piece 3, and the interior of the screening piece 3 is rotatably connected with a plurality of flip shafts 34. Both sides of the plurality of flip shafts 34 are fixedly connected with a connecting rod 27, and the end of the connecting rod 27 is connected to the outer wall of the flip plate 4.

[0032] A gear 26 is fixedly sleeved on the outer wall of the tilting shaft 34 , and the gear 26 is meshed with the toothed plate 28 .

[0033] A fixing member 22 is fixedly connected to the outer wall of the top box 2, and an outer ring 23 is fixedly connected to the fixing member 22. The outer ring 23 is in rolling contact with the universal roller.

[0034] A threaded rod 15 is fixedly connected to the outer wall of the screening element 3, and the end of the threaded rod 15 away from the screening element 3 rotates and passes through the outside of the top box 2. A ring 17 is threadedly sleeved on the outer wall of the threaded rod 15, and both sides of the ring 17 are fixedly connected to the limiting spring rod 14. The end of the limiting spring rod 14 away from the ring 17 is fixedly connected to the outer wall of the top box 2, and a magnetic ring 16 is fixedly connected to the outer wall of the ring 17.

[0035] The outside of the top box 2 is fixedly connected to a side arm 7, and a drive motor 8 is provided on the outer wall of the side arm 7. A turntable 9 is provided at the output end of the drive motor 8. Both sides of the turntable 9 are fixedly connected to a limit rail 10, and the inner wall of the limit rail 10 is slidably connected to a trigger magnet 11. A tension spring 12 is provided at the tail of the trigger magnet 11, and the end of the tension spring 12 away from the trigger magnet 11 is fixedly connected to the inner wall of the limit rail 10, and the magnetic poles of the trigger magnet 11 are the same as those of the magnetic ring 16.

[0036] A swing arm 13 is rotatably connected to the outer side wall of the rotating wheel 9 , and one end of the swing arm 13 away from the rotating wheel 9 is rotatably connected to the outer side wall of the support arm 5 .

[0037] Slide rails are provided on both sides of the top box 2, and cleaning mechanisms are provided inside the slide rails.

[0038] In this embodiment, when in use, the operator can pour the powder coating to be screened onto the screening element 3. If the coating to be screened is relatively fine, the flap 4 will face upwards (refer to Figure 1 ), when the flap 4 is facing upwards, the finer powder coating will be screened by the fine sieve holes when passing through the screening element 3 and the fine sieve holes on the flap 4, and those that meet the particle requirements will enter the interior of the screening element 3, and finally fall out of the screening element 3 through the large sieve holes 29, enter the bottom box 1, and finally enter the processing equipment through the discharge port 33. While screening the fine powder coating, the operator can turn on the drive motor 8 to drive the wheel 9 to rotate. When the wheel 9 rotates, it will press the top box 2 up and down through the swing arm 13, allowing the top box 2 to vibrate back and forth on the bottom box 1. When the entire top box 2 is pressed to vibrate, the screening efficiency of the entire screening element 3 can be improved.

[0039] Example 2: Please refer to Figure 1 - Figure 11 The cleaning mechanism includes a magnetic plate 20 that is slidably arranged inside the slide rail, a tension spring 18 is arranged inside the slide rail, and the other end of the tension spring 18 is fixedly connected to the outer wall of the magnetic plate 20. An insertion rod 21 is provided on the magnetic plate 20. The multiple insertion rods 21 on the magnetic plates 20 on both sides are of different sizes and thicknesses. External magnetic blocks 30 are provided on both sides of the screening element 3, and the magnetic poles of the external magnetic block 30 are the same as those of the magnetic plate 20.

[0040] Both sides of the top box 2 are provided with discharge slopes 31 , and both sides of the top box 2 are provided with storage boxes 32 .

[0041] A discharge port 33 is provided inside the bottom box 1 , and material guide slopes 19 are provided on both sides of the discharge port 33 .

[0042] In this embodiment, when it is necessary to screen the paint with larger particle size, the operator can increase the power of the driving motor 8 to drive the wheel 9 to rotate rapidly. When the wheel 9 rotates rapidly, the trigger magnet 11 will overcome the tension of the tension spring 12 and come to the outside of the limit rail 10 under the action of the large centrifugal force. When the trigger magnet 11 is located on the outside of the limit rail 10, it will just be located on the positive side of the magnetic ring 16. At this time, the distance between the two becomes closer. Under the action of the repulsive magnetic force, the magnetic ring 16 will push the collar 17, overcome the elastic force of the limit spring rod 14 and move away from the driving motor 8. When the collar 17 moves, the threaded rod 15 will drive the screening element 3 to rotate 180 degrees. When the screening element 3 rotates 180 degrees, The large sieve hole 29 is facing upward and the flap 4 is facing downward. When the screening element 3 rotates, the slide bar 24 is also driven to rotate synchronously on the outer ring 23. When the screening element 3 rotates one hundred and eighty degrees, the slide bar 24 will move to the protrusion of the outer ring 23. Under the push of the protruding part of the outer ring 23, the slide bar 24 will overcome the elastic force of the return spring 25 and push the tooth plate 28 to move into the screening element 3. When the tooth plate 28 moves into the screening element 3, it will drive the gear 26 to rotate, allowing the entire flap 4 to flip downward. When the two flaps 4 are flipped vertically, they are filtered by the large sieve hole 29. Large particles of paint that meet the particle size requirements will fall into the bottom box 1 through the open opening of the flap 4, and finally enter the processing equipment through the discharge port 33, thereby completing the screening and loading of the powder coating.

[0043] When the screening element 3 rotates 180 degrees, under the tension of the tension spring 18, the magnetic plates 20 on both sides will push the multiple rods 21 to be inserted into the corresponding row of large sieve holes 29, and the particles stuck in the large sieve holes 29 will be cleaned. When the conical head of the rod 21 is inserted into the large sieve hole 29, when the screening element 3 rotates, the side wall of the large sieve hole 29 will push the rod 21 to move outward along the conical head of the rod 21 until the rod 21 is completely out of the large sieve hole 29. After the rod 21 is completely out of the row of large sieve holes 29 that have been cleaned, as the screening element 3 rotates, when the other row of uncleaned large sieve holes 29 rotates to the side of the insertion rod 21, under the tension of the tension spring 18, the insertion rod 21 will be inserted into the other row of large sieve holes 29 to clean the other row of large sieve holes 29. In this way, the insertion rod 21 can clean multiple rows of large sieve holes 29 on the screening element 3 in turn to prevent the large sieve holes 29 from being blocked, which will cause the entire feeding device to be blocked.

[0044] It should be noted that, since magnetic plates 20 are provided on both sides of the screening element 3, the multiple rods 21 on the magnetic plates 20 have different thicknesses, corresponding to cleaning the large sieve holes 29 and the fine sieve holes respectively. The above principle describes that the thicker rods 21 clean the large sieve holes 29. When the thinner rods 21 clean the fine sieve holes, the same principle applies. The side walls of the fine sieve holes will also push the rods 21 into the fine sieve holes along the conical heads of the thinner rods 21. This reciprocating process allows multiple thinner rods 21 to clean multiple fine sieve holes in turn.

[0045] It should be noted that since there are no openings on both sides of the screening element 3, when the unopened part of the screening element 3 is rotated to the side of the magnetic plate 20, under the action of the magnetic force of the external magnetic block 30 and the magnetic plate 20, the magnetic plate 20 will drive the insertion rod 21 to move to the outside of the slide rail, and will not contact the unopened part of the screening element 3, thereby preventing jamming.

[0046] It should be noted that when the fine mesh or large mesh 29 sieves the paint, the powder paint that does not meet the particle requirements will enter the storage box 32 through the discharge slope 31 and be stored in the storage box 32.

[0047] It should be noted that, in this document, relational terms such as first and second, etc., are used only 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 terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A feeding device for powder coating manufacturing, comprising a bottom box (1), characterized in that: The bottom box (1) is slidably connected to the top box (2), a plurality of tension springs (6) are arranged between the bottom box (1) and the top box (2), a screening element (3) is rotatably connected to the top box (2), a screening feeding mechanism is arranged inside the screening element (3), the screening feeding mechanism comprises two flaps (4) rotatably connected to the screening element (3), a plurality of fine sieve holes are provided on the sides of the two flaps (4) and the screening element (3), a plurality of large sieve holes (29) are provided on the side of the screening element (3) away from the flaps (4), and the screening element (3) is provided with a plurality of large sieve holes (29). A slide rod (24) is slidably connected to the interior of the screening element (3), a universal roller is arranged at the end of the slide rod (24), a return spring (25) is sleeved on the outer wall of the slide rod (24), a tooth plate (28) is fixedly connected to the slide rod (24), the tooth plate (28) slides and penetrates into the interior of the screening element (3), a plurality of flip shafts (34) are rotatably connected to the interior of the screening element (3), a connecting rod (27) is fixedly connected to both sides of the plurality of flip shafts (34), and the end of the connecting rod (27) is connected to the outer wall of the flap (4).

2. A feeding device for powder coating production according to claim 1, characterized in that: A gear (26) is fixedly sleeved on the outer side wall of the flip shaft (34), and the gear (26) is meshed with the toothed plate (28).

3. A feeding device for powder coating production according to claim 1, characterized in that: A fixing piece (22) is fixedly connected to the outer side wall of the top box (2), an outer ring (23) is fixedly connected to the fixing piece (22), and the outer ring (23) is in rolling contact with the universal roller.

4. A feeding device for powder coating production according to claim 1, characterized in that: A threaded rod (15) is fixedly connected to the outer wall of the screening element (3); one end of the threaded rod (15) away from the screening element (3) rotates and penetrates to the outside of the top box (2); a collar (17) is threadedly sleeved on the outer wall of the threaded rod (15); both sides of the collar (17) are fixedly connected to limit spring rods (14); one end of the limit spring rod (14) away from the collar (17) is fixedly connected to the outer wall of the top box (2); and a magnetic ring (16) is fixedly connected to the outer wall of the collar (17).

5. A feeding device for powder coating production according to claim 1, characterized in that: The top box (2) is fixedly connected to a side arm (7) on the outside, a drive motor (8) is arranged on the outer wall of the side arm (7), a rotating wheel (9) is arranged at the output end of the drive motor (8), both sides of the rotating wheel (9) are fixedly connected to a limit rail (10), the inner wall of the limit rail (10) is slidably connected to a trigger magnet (11), a tension spring (12) is arranged at the tail of the trigger magnet (11), one end of the tension spring (12) away from the trigger magnet (11) is fixedly connected to the inner wall of the limit rail (10), and the magnetic pole of the trigger magnet (11) is the same as the magnetic pole of the magnetic ring (16).

6. A feeding device for powder coating production according to claim 5, characterized in that: A swing arm (13) is rotatably connected to the outer side wall of the rotating wheel (9), and one end of the swing arm (13) away from the rotating wheel (9) is rotatably connected to the outer side wall of the support arm (5).

7. A feeding device for powder coating production according to claim 1, characterized in that: Slide rails are provided on both sides of the top box (2), and a cleaning mechanism is provided inside the slide rails.

8. A feeding device for powder coating production according to claim 7, characterized in that: The cleaning mechanism comprises a magnetic plate (20) slidably arranged inside a slide rail, a tension spring (18) is arranged inside the slide rail, the other end of the tension spring (18) is fixedly connected to the outer wall of the magnetic plate (20), an insertion rod (21) is arranged on the magnetic plate (20), and a plurality of insertion rods (21) on the magnetic plates (20) on both sides have different sizes and thicknesses, and external magnetic blocks (30) are arranged on both sides of the screening element (3), and the magnetic poles of the external magnetic blocks (30) are the same as the magnetic poles of the magnetic plate (20).

9. A feeding device for powder coating production according to claim 1, characterized in that: Both sides of the top box (2) are provided with material discharge slopes (31), and both sides of the top box (2) are provided with material storage boxes (32).

10. A feeding device for powder coating production according to claim 1, characterized in that: A material discharge port (33) is provided inside the bottom box (1), and material guide slopes (19) are provided on both sides of the material discharge port (33).

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