Conveying device for automobile powder coating

Abstract

The invention relates to the technical field of powder coating conveying, in particular to an automobile powder coating conveying device which comprises an equipment box, a transmission assembly is arranged on the equipment box, the conveying device further comprises a conveying assembly, the conveying assembly comprises an annular pipe arranged on the equipment box, a conveying pipe is rotationally installed on the annular pipe, and a shifting ring is slidably installed on the conveying pipe; a driving gear and a driven gear are coaxially mounted on a rotating shaft of the conveying pipe; the limiting assembly comprises a toothed plate which is arranged on the equipment box in a sliding mode and meshed with the driven gear, a sliding part used for resetting is movably installed on one side of the toothed plate, and the limiting assembly further comprises a driving part which is elastically installed on the equipment box and used for intermittently extruding the shifting ring; and the air inlet pipe is arranged on the equipment box and communicates with the annular pipe, and fan blades are rotationally installed in the air inlet pipe and are in transmission connection with the driving gear through a transmission assembly. Gravity is used for assisting vibration cleaning, the cleaning effect is improved, automatic cleaning of the pipeline is achieved, shutdown is not needed in the cleaning process, and efficiency is improved.

Description

Technical Field

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

[0002] Automotive coatings are key materials used to protect and beautify the appearance of automobiles. They have functions such as corrosion resistance, weather resistance, and aesthetics. In automobile manufacturing, compressed air is used to transport powder coatings from storage tanks to spray guns. Through electrostatic spraying technology, the powder particles are charged and adsorbed on the grounded body. The body enters the baking oven, the powder melts and solidifies to form a uniform coating. Powder coatings are widely used because of their environmental protection, high efficiency and durability.

[0003] Powder coatings are composed of solid resins, pigments, fillers and additives in a dry powder state. The delivery technology of powder coatings directly affects the quality and efficiency of spraying. Pneumatic conveying systems can achieve fast and efficient delivery. However, in actual applications, pneumatic pipeline delivery has the following technical problems: Powder adsorption on the pipe wall: During the delivery process, powder particles are easily adsorbed on the inner wall of the pipe due to static electricity, friction and other reasons, resulting in reduced delivery efficiency and even blockage.

[0004] To solve the above problems, the following methods are usually used in the prior art: reducing powder adsorption by increasing the air flow velocity, but this will lead to increased energy consumption and powder breakage, regular manual cleaning, which requires shutdown and disassembly of the pipeline, low cleaning efficiency and affects production continuity. However, these methods all have certain limitations and cannot achieve automatic cleaning of the pipeline while ensuring the transportation efficiency. Therefore, there is an urgent need for a device that can automatically clean the tube wall powder regularly during pneumatic pipeline transportation to improve transportation efficiency, reduce maintenance costs and ensure production continuity. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a conveying device for automobile powder coatings, which can effectively solve the problem in the prior art that it is impossible to achieve automatic cleaning of the pipeline while ensuring the conveying efficiency.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a conveying device for automobile powder coating, comprising an equipment box, a transmission assembly is provided on the equipment box, and further comprising: A conveying assembly, the conveying assembly comprising an annular tube arranged on the equipment box, a conveying tube which is always connected with the cavity is rotatably mounted on the annular tube, a toggle ring is slidably mounted on the conveying tube, and a driving gear and a driven gear are coaxially mounted on the rotating shaft of the conveying tube; A limit assembly, the limit assembly comprising a toothed plate slidably mounted on the equipment box and meshing with the driven gear, a sliding member for resetting being movably mounted on one side of the toothed plate, and a driving member elastically mounted on the equipment box for intermittently squeezing the toggle ring; And an air intake pipe is arranged on the equipment box and communicated with the annular pipe. Fan blades are rotatably installed in the air intake pipe, and the fan blades are connected to the driving gear through a transmission component.

[0007] Furthermore, the annular tube is provided with two groups of symmetrically distributed cavities, a swivel for sealing the cavities is rotatably mounted on the annular tube, a stopper is provided on the swivel, and the delivery pipe is arranged on the swivel.

[0008] Furthermore, the toggle ring is slidably arranged on the conveying pipe through a vibration plate, and a knocking column is provided on the side of the vibration plate close to the conveying pipe, and the knocking columns are provided in multiple groups and are evenly distributed on the vibration plate, and a plurality of groups of hemispherical protrusions are provided on the side of the toggle ring away from the vibration plate.

[0009] Furthermore, an annular guide groove is provided on the equipment box, and a guide column extending into the annular guide groove is provided on the tooth plate, and a shift plate is provided at the bottom of the tooth plate, and the shift plate is located on the opposite side of the guide column.

[0010] Furthermore, the sliding member is slidably mounted on the equipment box and is located on a side of the guide column away from the air intake pipe. The sliding member can slide vertically with the tooth plate, and an elastic member is provided between the sliding member and the equipment box, and the elastic member is used to always pull the sliding member.

[0011] Furthermore, the driving member is composed of a group of horizontal plates and two groups of vertical plates, and one group of vertical plates is provided with a rack meshing with the driving gear, the vertical plates and the rack are symmetrically distributed on both sides of the driving gear, and the vertical plates and the rack are provided with multiple groups of hemispherical protrusions 2 on one side close to the toggle ring, and the vertical plates are located below the toggle plates.

[0012] Furthermore, the transmission assembly includes a transmission gear 1, a transmission gear 2, a pulley group and a transmission gear 3, the transmission gear 1 is arranged on the fan blade rotating shaft, the transmission gear 2 and the transmission gear 3 are rotatably arranged on the equipment box, and the transmission gear 2 is meshed and connected with the transmission gear 1, and the transmission gear 3 is meshed and connected with the driving gear, and the transmission gear 2 and the transmission gear 3 are connected through the pulley group, the diameter of the transmission gear 2 is larger than the diameter of the transmission gear 1, the diameter of the transmission gear 3 is smaller than the diameter of the driving gear, and the diameter of the transmission gear 2 is larger than the diameter of the transmission gear 3, and the diameter of the driven gear is smaller than the diameter of the driving gear.

[0013] Furthermore, the other end of the annular tube is away from the air inlet tube and is an output tube, and both ends of the delivery tube are respectively connected with the air inlet tube and the output tube in an initial state.

[0014] Furthermore, a roller plate is provided on the equipment box, and the roller plate is located directly below the tooth plate.

[0015] Beneficial Effects Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects: By cooperating with the fan blades and the transmission assembly, the gas will automatically rotate the delivery pipe to cause an angle deflection periodically during the process of the air intake pipe to the annular pipe, and the restriction on the delivery pipe will be released when the tooth plate disengages from the driven gear. Subsequently, when the driving member rises, the hemispherical protrusion 2 cooperates with the hemispherical protrusion 1 to intermittently move the vibration plate to knock on the delivery pipe, and the delivery pipe is vibrated and cleaned when it is in a vertical state, and gravity is assisted to effectively remove the powder accumulated on the pipe wall. Through the combination of angle deflection and vibration cleaning, automatic cleaning of the pipeline is achieved without manual intervention. Gravity-assisted vibration cleaning can completely remove powder on the pipe wall and improve the cleaning effect. The cleaning process does not require shutdown, thereby ensuring production continuity and transportation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the connection between the vibration plate and the tooth plate of the present invention; Figure 3 A partial cross-sectional view of a conveying assembly of the present invention; Figure 4 It is a partial cross-sectional view of the present invention; Figure 5 is a cross-sectional view of the equipment box of the present invention; Figure 6 It is a structural schematic diagram of the transmission assembly of the present invention; Figure 7 This is a state change diagram of the tooth plate of the present invention on the equipment box.

[0018] Figure numerals: 1. Equipment box; 101. Annular guide groove; 11. Inlet pipe; 12. Fan blade; 13. Transmission assembly; 131. Transmission gear one; 132. Transmission gear two; 133. Pulley set; 134. Transmission gear three; 14. Roller plate; 2. Conveying assembly; 21. Annular tube; 22. Rotating ring; 221. Block; 23. Conveying pipe; 232. Driving gear; 233. Driven gear; 24. Vibrating plate; 25. Driving ring; 251. Hemispherical protrusion one; 3. Limiting assembly; 31. Tooth plate; 311. Guide column; 312. Driving plate; 32. Sliding member; 33. Elastic member; 34. Driving member; 341. Hemispherical protrusion two. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution 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 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 creative work are within the scope of protection of the present invention.

[0020] The present invention will be further described below in conjunction with the embodiments.

[0021] See attached Figure 1-7A conveying device for automobile powder coating comprises an equipment box 1, a transmission assembly 13 is provided on the equipment box 1, and an air intake pipe 11 is arranged on the equipment box 1 and communicated with an annular pipe 21, a fan blade 12 is rotatably installed in the air intake pipe 11, and the fan blade 12 is transmission-connected with a subsequent driving gear 232 through the transmission assembly 13, a feed hopper is provided on the air intake pipe 11, which is used to input powder coating into one end of the air intake pipe 11 close to the annular pipe 21, and the powder coating is blown into the annular pipe 21 and the conveying pipe 23 for conveying through the air flow in the air intake pipe 11, the transmission assembly 13 comprises a transmission gear 1 131, a transmission gear 2 132, a pulley group 133 and a transmission gear 3 134, the transmission gear 1 131 is arranged on the rotating shaft of the fan blade 12, the transmission gear 2 132 and the transmission gear 3 134 are rotationally arranged on the equipment box 1, and the transmission gear 2 132 is meshedly connected with the transmission gear 1 131, the transmission gear 3 134 is meshedly connected with the driving gear 232, and the transmission gear 2 132 is meshedly connected with the transmission gear 1 The gear three 134 is connected through a pulley group 133, the diameter of the transmission gear two 132 is larger than the diameter of the transmission gear one 131, the diameter of the transmission gear three 134 is smaller than the diameter of the driving gear 232, and the diameter of the transmission gear two 132 is larger than the diameter of the transmission gear three 134, one of the transmission gear one 131, the transmission gear two 132 and the transmission gear three 134 is a ratchet, the transmission assembly 13 can only drive the driving gear 232 to rotate clockwise following the fan blade 12, and cannot drive the fan blade 12 to rotate counterclockwise when the driving gear 232 rotates counterclockwise, and drives the fan blade 12 to rotate when the body enters the annular tube 21 from the air intake pipe 11. By setting different gear ratios, the difficulty of the fan blade 12 rotating to drive the driving gear 232 to rotate is reduced, so as to facilitate the use of the energy of the gas flowing into the annular tube 21 from the air intake pipe 11, and at the same time slow down the rotation speed of the driving gear 232, and control the rotation frequency of the driving gear 232. The collective transmission ratio is not limited here, and can be limited according to actual conditions, and also includes: The conveying assembly 2 includes an annular tube 21 arranged on the equipment box 1, a conveying tube 23 which is always connected to the cavity is rotatably installed on the annular tube 21, two groups of symmetrically distributed cavities are arranged on the annular tube 21, a swivel 22 for sealing the cavity is rotatably installed on the annular tube 21, and a stopper 221 is arranged on the swivel 22, and the other end of the annular tube 21 away from the air inlet pipe 11 is an output pipe. In the initial state, the two ends of the conveying tube 23 are respectively connected to the air inlet pipe 11 and the output pipe. When the fan blade 12 rotates to drive the driving gear 232 to rotate, the conveying tube 23 will rotate clockwise and gradually rotate from a horizontal state to a vertical state. At this time, the stopper 221 Move in the cavity of the annular tube 21, a toggle ring 25 is slidably installed on the delivery tube 23, and the toggle ring 25 is slidably set on the delivery tube 23 through the vibration plate 24, and a knocking column is provided on the side of the vibration plate 24 close to the delivery tube 23, and a plurality of knocking columns are provided and equidistantly distributed on the vibration plate 24, and a plurality of groups of hemispherical protrusions 251 are provided on the side of the toggle ring 25 away from the vibration plate 24, and the delivery tube 23 is knocked by intermittently squeezing the toggle ring 25 to achieve vibration of the delivery tube 23 so that the powder adsorbed on the inner wall is vibrated out, and a driving gear 232 and a driven gear 233 are coaxially installed on the rotating shaft of the delivery tube 23, and the diameter of the driven gear 233 is smaller than the diameter of the driving gear 232; The limit assembly 3 includes a tooth plate 31 which is slidably arranged on the equipment box 1 and meshed with the driven gear 233. The equipment box 1 is provided with an annular guide groove 101, and the tooth plate 31 is provided with a guide column 311 extending into the annular guide groove 101. The sliding path of the tooth plate 31 on the equipment box 1 is the shape of the annular guide groove 101. A paddle 312 is provided at the bottom of the tooth plate 31, and the paddle 312 is located on the opposite side of the guide column 311. A sliding member 32 for resetting is movably installed on one side of the tooth plate 31. The sliding member 32 is slidably installed on the equipment box 1 and is located on the side of the guide column 311 away from the intake pipe 11. The sliding member 32 can be moved with the tooth plate 31. The plate 31 slides in the vertical direction, and an elastic member 33 is provided between the sliding member 32 and the equipment box 1. The elastic member 33 is used to always pull the sliding member 32. A roller plate 14 is provided on the equipment box 1, and the roller plate 14 is located directly below the tooth plate 31. The gravity of the tooth plate 31 is greater than the pulling force of the elastic member 33, that is, the tooth plate 31 is moved by the driven gear 233 and moves away from the sliding member 32. At this time, the sliding member 32 moves with the tooth plate 31. When the tooth plate 31 moves to the extreme position, due to the deadweight of the tooth plate 31, the tooth plate 31 will be driven away from the driven gear 233. At this time, the guide column 311 cannot be pulled by the elastic member 33. When the tooth plate 31 falls to When the roller plate 14 is on the roller plate 14, since the roller plate 14 is provided with multiple groups of rollers, the tooth plate 31 is easily pulled on the roller plate 14, and then the elastic member 33 pulls the tooth plate 31 to reset in the horizontal direction, and also includes a driving member 34 elastically installed on the equipment box 1 for intermittently squeezing the toggle ring 25, and the driving member 34 is composed of a group of horizontal plates and two groups of vertical plates, and a group of vertical plates is provided with a rack meshing with the driving gear 232, and the vertical plates and the racks are symmetrically distributed on both sides of the driving gear 232, and the vertical plates and the racks are close to the toggle ring 25. The side is provided with multiple groups of hemispherical protrusions 2 341, and the vertical plates are located below the toggle plate 312, and the driving gear 232 is When rotating, the driving member 34 is driven to descend and disengage from the paddle plate 312 at the bottom of the tooth plate 31. When the tooth plate 31 is disengaged from the driven gear 233, the restriction on the driven gear 233 is cancelled. At this time, the driving member 34 rises and drives the driving gear 232 to reverse and reset the conveying pipe 23. When the driving member 34 rises, the hemispherical protrusion 2 341 intermittently squeezes the hemispherical protrusion 1 251, and then intermittently pushes the vibration plate 24 to knock the conveying pipe 23, so as to vibrate the conveying pipe 23. When the driving member 34 rises to the limit position, the paddle plate 312 is pushed again to drive the tooth plate 31 to rise, so as to reset the tooth plate 31 in the vertical direction.

[0022] Working principle: by blowing gas into the air inlet pipe 11, the powder is blown into the annular tube 21, and then discharged through the conveying pipe 23. When working, the fan blade 12 rotates due to the gas flow, and cooperates with the transmission component 13 to drive the conveying pipe 23 to rotate. The rotation and cleaning frequency of the conveying pipe 23 is set by setting the transmission ratio. When the conveying pipe 23 rotates, the tooth plate 31 will be moved at the same time. At the same time, the driving member 34 will be compressed and dropped under the movement of the driving gear 232. When the conveying pipe 23 is in a vertical direction, the tooth plate 31 is separated from the driven gear 233 and drops due to gravity. At this time, the restriction on the driving gear 232 is cancelled, and the driving member 34 rises and moves the driving gear 232 and the conveying pipe 23 to reset. At this time, the driving member 3 The hemispherical protrusion 2 341 on 4 will intermittently squeeze the hemispherical protrusion 1 251, and then intermittently push the vibration plate 24 to knock the conveying pipe 23, thereby vibrating the conveying pipe 23 and removing the powder adsorbed on the inner wall of the conveying pipe 23. When the tooth plate 31 is separated from the driven gear 233 and contacts the roller plate 14, the friction of the tooth plate 31 when moving on the roller plate 14 is reduced, and the elastic member 33 pulls the sliding member 32 to reset the tooth plate 31 in the horizontal direction. When the driving member 34 is raised to the initial position, the dial plate 312 is moved to reset the tooth plate 31 in the vertical direction, and the annular guide groove 101 is cooperated to realize the reciprocating movement of the tooth plate 31 on the equipment box 1 in a cycle, and continuously realize the rotation of the conveying pipe 23 and the knocking vibration of the conveying pipe 23.

[0023] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A conveying device for automobile powder coating, comprising a device box (1), wherein a transmission assembly (13) is provided on the device box (1), characterized in that: Also includes: A conveying assembly (2), the conveying assembly (2) comprising an annular tube (21) arranged on the equipment box (1), a conveying tube (23) which is always connected to the cavity being rotatably mounted on the annular tube (21), a toggle ring (25) being slidably mounted on the conveying tube (23), and a driving gear (232) and a driven gear (233) being coaxially mounted on the rotating shaft of the conveying tube (23); A limit assembly (3), the limit assembly (3) comprising a toothed plate (31) slidably mounted on the device box (1) and meshing with the driven gear (233), a sliding member (32) for resetting being movably mounted on one side of the toothed plate (31), and a driving member (34) elastically mounted on the device box (1) for intermittently squeezing the toggle ring (25); and an air intake pipe (11) arranged on the equipment box (1) and connected to the annular pipe (21); a fan blade (12) is rotatably mounted in the air intake pipe (11); and the fan blade (12) is transmission-connected to a driving gear (232) via a transmission assembly (13).

2. A conveying device for automobile powder coating according to claim 1, characterized in that: The annular tube (21) is provided with two groups of symmetrically distributed cavities, a swivel (22) for sealing the cavities is rotatably mounted on the annular tube (21), a stopper (221) is provided on the swivel (22), and the delivery tube (23) is arranged on the swivel (22).

3. The conveying device for automobile powder coating according to claim 1, characterized in that: The toggle ring (25) is slidably arranged on the delivery pipe (23) via a vibration plate (24), and a knocking column is provided on a side of the vibration plate (24) close to the delivery pipe (23), wherein a plurality of knocking columns are provided and are evenly distributed on the vibration plate (24), and a plurality of groups of hemispherical protrusions (251) are provided on a side of the toggle ring (25) away from the vibration plate (24).

4. The conveying device for automobile powder coating according to claim 1, characterized in that: The equipment box (1) is provided with an annular guide groove (101), and the tooth plate (31) is provided with a guide column (311) extending into the annular guide groove (101), and a shift plate (312) is provided at the bottom of the tooth plate (31), and the shift plate (312) is located on the opposite side of the guide column (311).

5. The conveying device for automobile powder coating according to claim 1, characterized in that: The sliding member (32) is slidably mounted on the equipment box (1) and is located on a side of the guide column (311) away from the air intake pipe (11). The sliding member (32) can slide in a vertical direction with the tooth plate (31), and an elastic member (33) is provided between the sliding member (32) and the equipment box (1). The elastic member (33) is used to always pull the sliding member (32).

6. The conveying device for automobile powder coating according to claim 4, characterized in that: The driving member (34) is composed of a group of horizontal plates and two groups of vertical plates, and a group of vertical plates is provided with a rack meshing with the driving gear (232), the vertical plates and the rack are symmetrically distributed on both sides of the driving gear (232), and a plurality of groups of hemispherical protrusions (341) are provided on the side of the vertical plates and the rack close to the toggle ring (25), and the vertical plates are located below the toggle plates (312).

7. The conveying device for automobile powder coating according to claim 1, characterized in that: The transmission assembly (13) comprises a transmission gear 1 (131), a transmission gear 2 (132), a pulley group (133) and a transmission gear 3 (134); the transmission gear 1 (131) is arranged on the rotation axis of the fan blade (12); the transmission gear 2 (132) and the transmission gear 3 (134) are rotatably arranged on the equipment box (1); the transmission gear 2 (132) is meshedly connected with the transmission gear 1 (131); the transmission gear 3 (134) is meshedly connected with the driving gear (23 2) meshing connection, the transmission gear 2 (132) and the transmission gear 3 (134) are connected by a pulley group (133), the diameter of the transmission gear 2 (132) is larger than the diameter of the transmission gear 1 (131), the diameter of the transmission gear 3 (134) is smaller than the diameter of the driving gear (232), and the diameter of the transmission gear 2 (132) is larger than the diameter of the transmission gear 3 (134), and the diameter of the driven gear (233) is smaller than the diameter of the driving gear (232).

8. The conveying device for automobile powder coating according to claim 1, characterized in that: An output pipe is provided at the other end of the annular tube (21) away from the air intake pipe (11), and both ends of the delivery pipe (23) are respectively connected to the air intake pipe (11) and the output pipe in an initial state.

9. The conveying device for automobile powder coating according to claim 1, characterized in that: The equipment box (1) is provided with a roller plate (14), and the roller plate (14) is located directly below the tooth plate (31).

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