Surface treatment apparatus
Patent Information
- Authority / Receiving Office
- TW · TW
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2022-02-11
- Publication Date
- 2023-08-16
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
[Technical Field]
[0001] This invention relates to a surface treatment apparatus, and more particularly to a surface treatment apparatus in which a centrifugal unit is provided between a coating apparatus and a drying apparatus, and the centrifugal unit is used to remove excess paint from the surface of a workpiece. [Previous Technology]
[0002] Existing surface treatment equipment, such as surface treatment equipment for coating the surface of workpieces (such as screws) with anti-rust or dyeing paint, mainly involves placing the workpiece in a material tank, immersing the material tank in a paint tank of a coating device, allowing the paint in the paint tank to adhere to the surface of the workpiece, and finally sending the coated workpiece to a drying device for drying.
[0003] However, after the workpiece is coated with paint, the paint is easy to remain in the surface gaps of the workpiece, such as the grooves or holes on the surface of the workpiece. If the workpiece coated with paint is directly sent into the drying device to dry, the excess paint is easy to block the grooves or holes on the metal surface, or cause uneven coating of paint on the surface of the grooves or holes of the workpiece, thus affecting the quality and output of the workpiece surface treatment.
[0004] In order to improve the problem of uneven paint coating, the existing method is to reduce the number of workpieces fed into the coating device for paint coating each time, so as to avoid excessive paint residue between the workpieces in the paint bucket when the paint bucket is taken out, thereby reducing the output of each process, which is not ideal.
[0005] Furthermore, existing surface treatment equipment is based on the continuity of automated operation. The material barrel conveying path and the workpiece conveying path of the drying device are arranged in a straight line opposite each other. The pouring device set at the discharge end of the material barrel conveying path directly pours the workpiece coated with paint in the material barrel into the inlet position of the workpiece conveying path of the drying device. Therefore, the overall length of existing surface treatment equipment is very long, making it difficult to install in a factory with limited length. [Summary of the Invention]
[0006] In order to avoid the problems of uneven coating of paint and easy residue in the gaps of the workpiece during surface treatment, as well as the problem of low output per process, the main purpose of the present invention is to provide a surface treatment device in which the paint-coated workpiece is first poured into a centrifugal device before being placed into the drying device to remove excess paint, and then poured into the drying device for drying, so as to improve the quality of the workpiece surface treatment.
[0007] To achieve the above objectives, the surface treatment equipment of the present invention includes a material barrel conveying unit, a drying device, a discharging device, and a centrifugal unit, wherein: the material barrel conveying unit is capable of transporting a material barrel between an inlet end and an outlet end of a material barrel conveying path; the drying device is adjacent to and parallel to the material barrel conveying unit, and the drying device is capable of transporting multiple workpieces coated with paint along a workpiece conveying path from an inlet position to an outlet position and drying them, the workpiece conveying path being parallel to the material barrel conveying path, and the inlet position of the workpiece conveying path being adjacent to the outlet end of the material barrel conveying path; The material pouring device is located at the discharge end of the material barrel conveying path and can receive the material barrel containing multiple workpieces sent out by the material barrel conveying unit, and pour the multiple workpieces contained in the material barrel into the centrifugal unit; and the centrifugal unit is located between the discharge end of the material barrel conveying path of the material barrel conveying unit and the inlet position of the workpiece conveying path of the drying device, and is located below the material pouring device. The centrifugal unit includes a base, a tilting seat, a centrifugal device and a tilting drive device. The tilting seat is tiltably mounted on the base. The centrifugal device is located on the tilting seat and includes a centrifugal barrel and a centrifugal drive device connected to the centrifugal barrel. The centrifugal barrel can receive the multiple workpieces poured out by the material pouring device. The centrifugal drive device can drive the centrifugal barrel containing the multiple workpieces to rotate and spray paint. The tilting drive device is located on the base and connected to the tilting seat, and can drive the tilting seat to tilt, so that the multiple workpieces contained in the centrifugal barrel are poured into the inlet position of the workpiece conveying path of the drying device.
[0008] Utilizing the above-described technical features, the surface treatment equipment of the present invention has the following efficiency gains:
[0009] 1. After the workpiece is coated with paint, the workpiece in the material bucket is poured into the centrifugal bucket of the centrifugal unit using the pouring seat. Then, the centrifugal force when the centrifugal bucket rotates at high speed is used to throw off the excess paint on the surface of the workpiece. Afterwards, the workpiece in the centrifugal bucket is poured into the feeding position of the drying device by the flipping seat of the centrifugal unit. The drying device conveys and dries the paint adhering to the surface of the workpiece, which can avoid paint residue in the grooves on the surface of the workpiece, making the paint coating more uniform and improving the surface treatment quality of the workpiece.
[0010] 2. Because of the centrifugal unit, excess paint on the surface of the workpiece can be effectively removed, thus increasing the number of workpieces that can be coated with paint in the container each time, thereby increasing the output of each process.
[0011] 3. Since the drying device is placed on one side of the material barrel conveying unit, and the workpiece conveying path is parallel to the material barrel conveying path of the material barrel conveying unit, the inlet position of the workpiece conveying path is close to the outlet end of the material barrel conveying path. The workpiece coated with paint is transferred to the drying device using a centrifugal unit located between the inlet position and the outlet end of the material barrel conveying path. After drying, the workpiece is output from the drying device at the same side as the inlet end of the material barrel conveying unit on the surface treatment equipment. This shortens the overall length of the surface treatment equipment, making it easier to configure in factories with limited space. Furthermore, the fact that both the inlet and outlet positions of the workpieces are located on the same side of the surface treatment equipment facilitates workpiece transportation.
Implementation Method
[0013] Please refer to Figures 1 to 4 for a preferred embodiment of the surface treatment equipment of the present invention, which includes a material barrel conveying unit 20, a material pouring device 27, a centrifugal unit 50, and a drying device 60.
[0014] The material barrel conveying unit 20 is used to transport a material barrel A along a material barrel conveying path. As shown in FIG2, the material barrel conveying path includes an inlet end 201 and an outlet end 202. The material barrel A is transported between the inlet end 201 and the outlet end 202 of the material barrel conveying path, and the material barrel A is conveyed between an inlet unit 10, a coating device 30, and a pouring device 27. The pouring device 27 is located at the outlet end 202 of the material barrel conveying path.
[0015] Please refer to Figures 1 to 4. The drying device 60 is placed on one side of the material barrel conveying unit 20 and is adjacent to the material barrel conveying unit 20. The drying device 60 can transport multiple workpieces coated with paint along a workpiece conveying path from an inlet position 61 to an outlet position and dry them. The workpiece conveying path is parallel to the material barrel conveying path of the material barrel conveying unit 20. The inlet position 61 of the workpiece conveying path is adjacent to the outlet end 202 of the material barrel conveying path. The drying device 60 can be an existing drying device 60, and its structural details are not described here.
[0016] The material barrel conveying unit 20 includes a frame 21, a conveying track 23, and a movable seat 25. The conveying track 23 is located on the top of the frame 21 and extends along the material barrel conveying path, as shown in Figures 5 to 7. The pouring device 27 can receive the material barrel A containing multiple workpieces sent out by the material barrel conveying unit 20 and pour the workpieces contained in the material barrel A into the centrifugal unit 50. The pouring device 27 is connected to the frame 21 in a flip-up manner relative to the frame 21 and is located near the top of the frame 21, as shown in Figures 1 to 4. The movable seat 25 is connected to the conveying track 23 in a movable manner along the conveying track 23. The movable seat 25 is used to clamp the material barrel A and convey the material barrel A between the feeding unit 10, the coating device 30, and the pouring device 27.
[0017] As shown in Figures 1 to 4, the feeding unit 10 is located near the feeding end 201 of the material conveying path of the material conveying unit 20, and is used to place the workpiece into the material bucket A. The feeding unit 10 includes a feeding device 11, a lifting frame 13, and a moving track 15. The material bucket A is placed on the lifting frame 13. The lifting frame 13 is connected to the moving track 15 and can move along the moving track 15. After the feeding device 11 pours the workpiece into the material bucket A placed on the lifting frame 13, the lifting frame 13 moves along the moving track 15 and drives the material bucket A to rise, so that the material bucket A can be held by the moving seat 25 of the material conveying unit 20.
[0018] As shown in Figures 1 to 4, the coating device 30 is located on one side of the material barrel conveying unit 20 and is used to coat the workpiece contained in the material barrel A. The coating device 30 can be an existing coating device, which has a paint tank 31, a moving platform 33, and a clamping unit 35. The moving platform 33 can move between the bottom of the conveying track 23 and the bottom of the clamping unit 35. The moving platform 25 moves along the conveying track 23 and places the material barrel A it clamps on the moving platform 33. The moving platform 33 moves the material barrel A to the bottom of the clamping unit 35, and the clamping unit 35 clamps the material barrel A. After the moving platform 33 moves away, the paint tank 31... The material tank A is raised, immersing it in the paint tank 31, allowing the paint to adhere to the surface of the workpiece inside the material tank A. Furthermore, the clamping unit 35 can rotate the material tank A relative to the paint tank 31, allowing the paint to adhere more evenly to the surface of the workpiece inside the material tank A during the rotation process. After the coating operation is completed, the paint tank 31 is lowered, and the moving table 33 moves again to below the clamping unit 35, placing the material tank A on the moving table 33. The moving table 33 then moves the material tank A to below the conveying track 23 of the material tank conveying unit 20, so that the moving seat 25 can clamp the material tank A and move the material tank A to be placed on the pouring device 27.
[0019] Please refer to Figures 5 to 7 for details. The material pouring device 27 includes a material pouring base 270 and a material pouring drive device 275. The material pouring base 270 is connected to the frame 21 and is adjacent to the top of the frame 21, and is rotatable relative to the frame 21. The material pouring drive device 275 is fixed to the frame 21 and connected to the material pouring base 270, thereby driving the material pouring base 270 to rotate relative to the frame 21. The material pouring base 270 has a base 271 and a discharge hopper 273. The base 271 is located on the conveying track. Below 23, the material bucket A is placed. The discharge hopper 273 is located on the base 271 and adjacent to the discharge end 202. When the pouring device 27 drives the material bucket A to flip, the workpiece in the material bucket A can slide down along the discharge hopper 273. Preferably, a clamping member 277 is provided on each of the opposite sides of the pouring seat 270. The two clamping members 277 are used to clamp and fix the material bucket A placed on the pouring seat 270 to prevent the material bucket A from slipping when it flips. The two clamping members 277 are aligned with the flipping center axis of the pouring seat 270.
[0020] The centrifugal unit 50 is located between the discharge end 202 of the material conveying path of the material conveying unit 20 and the inlet position 61 of the workpiece conveying path of the drying device 60, and is located below the pouring device 27. The pouring device 27 drives the material bucket A to flip over, and pours the workpiece contained in the material bucket A into the centrifugal unit 50.
[0021] Please refer to Figures 8 to 11 for details. The centrifugal unit 50 includes a base 51, a tilting seat 53, a centrifugal device 55, and a tilting drive device 54. The tilting seat 53 is connected to the base 51 and can be tilted relative to the base 51. The centrifugal device 55 is connected to the tilting seat 53 and includes a centrifugal bucket 551 and a centrifugal drive device 555. The centrifugal bucket 551 can receive multiple workpieces poured out by the pouring device 27 and is rotatably connected to the tilting seat 53. The centrifugal drive device 555 is connected to the tilting seat 53 and drives the centrifugal bucket 551, which contains multiple workpieces, to rotate and spray paint. The tilting drive device 54 is located on the base 51 and connected to the tilting seat 53 and drives the tilting seat 53 to tilt, so that the centrifugal bucket 551 containing multiple workpieces is poured into the inlet position 61 of the workpiece conveying path of the drying device 60. Furthermore, the centrifuge device 55 has an outer barrel 553, which is fixed to the tilting seat 53. The centrifuge barrel 551 is fitted inside the outer barrel 553, and a centrifuge hopper 554 is fitted around the outer periphery of the outer barrel 553. When the tilting seat 53 rotates the centrifuge barrel 551, the workpiece inside the centrifuge barrel 551 can slide down along the centrifuge hopper 554. The centrifuge hopper 554 is rotatably fitted onto the outer barrel 553 relative to the outer barrel 553. When the centrifuge unit 553... When multiple workpieces are poured from the material conveying unit 20 into the centrifugal bucket 551, the centrifugal hopper 554 can be turned to the discharge hopper 273 of the pouring device 27 to receive the workpieces, allowing the workpieces poured out by the pouring device 27 to enter the centrifugal bucket 551 along the centrifugal hopper 554; after the centrifugal unit 50 completes the rotating paint-spraying operation, the centrifugal hopper 554 can be turned to the drying device 60, allowing the workpieces to slide down the centrifugal hopper 554 into the drying device 60.
[0022] As shown in Figures 8 to 11, the top of the flipping seat 53 is provided with a flipping shaft 531. The flipping shaft 531 is adjacent to the drying device 60. The flipping seat 53 is connected to the base 51 and can be flipped relative to the base 51 with the flipping shaft 531 as the center. The flipping shaft 531 is connected to a flipping drive device 54. The flipping drive device 54 is installed on the base 51 and drives the flipping shaft 531 to rotate, thereby causing the flipping seat 53 to flip relative to the base 51.
[0023] The flipping drive device 54 includes a drive cylinder 541, a gear 542, and a gear 543. The drive cylinder 541 is mounted on the base 51. The gear 542 is connected to the drive cylinder 541. The gear 543 is connected to the flipping shaft 531 and meshes with the gear 542. The drive cylinder 541 drives the gear 542 to move relative to the gear 543, thereby driving the gear 543 to rotate, and driving the flipping shaft 531 to rotate, thus causing the flipping seat 53 to flip relative to the base 51. The base 51 is provided with a limiting member 515, which is located on the side of the toothed rack 542 away from the gear 543 and abuts against the toothed rack 542 to prevent the toothed rack 542 from separating from the gear 543 when it moves relative to the gear. The limiting member 515 extends along the extension and retraction direction of the drive cylinder 541, which can further limit the movement direction of the toothed rack 542. The limiting member 515 includes at least one roller 516, which abuts against the toothed rack 542 to reduce the frictional resistance between the toothed rack 542 and the limiting member 515 when it moves relative to the toothed rack 542.
[0024] Please refer to Figures 7 and 10 for reference. The pouring device 27 drives the material bucket A to flip, and pours the workpiece contained in the material bucket A into the centrifugal bucket 551 of the centrifugal unit 50. The centrifugal drive device 555 drives the centrifugal bucket 551 to rotate at high speed. The centrifugal force generated when the centrifugal bucket 551 rotates at high speed throws away the excess paint on the surface of the workpiece, thereby avoiding paint residue in the grooves on the surface of the workpiece and allowing the paint to be coated more evenly on the surface of the workpiece.
[0025] Please refer to Figures 8 to 11. After the centrifuge device 55 stops, the tilting seat 53 drives the centrifuge barrel 551 to tilt, and the workpiece contained in the centrifuge barrel 551 is poured into the feeding position 61 of the drying device 60. The workpiece is dried as it moves along the workpiece conveying path of the drying device 60 driven by the drying device 60.
[0026] Utilizing the above-described technical features, the surface treatment equipment of the present invention has the following efficiency gains:
[0027] 1. After the workpiece is coated with paint, the workpiece in the material tank A is poured into the centrifugal tank 551 of the centrifugal unit 50 using the pouring seat 27. Then, the centrifugal force generated when the centrifugal tank 551 rotates at high speed is used to throw off the excess paint on the surface of the workpiece. Afterwards, the workpiece in the centrifugal tank 551 is poured into the feeding position 61 of the drying device 60 by flipping the centrifugal unit 50 using the flipping seat 53. The drying device 60 conveys and dries the paint adhering to the surface of the workpiece, which can avoid paint residue in the grooves on the surface of the workpiece, making the paint coating more uniform and improving the surface treatment quality of the workpiece.
[0028] 2. Since the centrifugal unit 50 is set up, it can effectively remove excess paint from the surface of the workpiece, thereby increasing the number of workpieces that are coated with paint in the material tank A each time, and thus increasing the output of each process.
[0029] 3. Since the drying device 60 is placed on one side of the material barrel conveying unit 20, and the workpiece conveying path is parallel to the material barrel conveying path of the material barrel conveying unit 20, the inlet position 61 of the workpiece conveying path is adjacent to the outlet end 202 of the material barrel conveying path. The workpiece coated with paint is transferred to the drying device 60 by using the unloading device 27 in conjunction with the centrifugal unit 50 located between the inlet position 61 and the outlet end 202 of the material barrel conveying path. After being dried by the drying device 60, the workpiece is output from the same side of the surface treatment equipment as the inlet end 201 of the material barrel conveying unit 20. This shortens the overall length of the surface treatment equipment, making it easier to configure in factories with limited length. Furthermore, the fact that the inlet position of the workpiece entering the surface treatment equipment and the outlet position of the workpiece exiting the surface treatment equipment are both located on the same side of the surface treatment equipment facilitates workpiece transportation. [Simplified Explanation of the Diagram]
[0012] Figure 1 is a perspective view of a preferred embodiment of the present invention. Figure 2 is a partially enlarged front view of a preferred embodiment of the present invention. Figure 3 is a partially enlarged top view of a preferred embodiment of the present invention. Figure 4 is an enlarged side view of a preferred embodiment of the present invention. Figure 5 is a partially enlarged cross-sectional perspective view of the material conveying unit of a preferred embodiment of the present invention. Figure 6 is a partially enlarged side view of a preferred embodiment of the present invention, showing the material pouring seat and the centrifugal unit. Figure 7 is a schematic diagram of the material pouring action of the material pouring seat in a preferred embodiment of the present invention. Figure 8 is a partially cross-sectional perspective view of the centrifugal unit in a preferred embodiment of the present invention. Figure 9 is a partially cross-sectional side view of the centrifugal unit in a preferred embodiment of the present invention. Figure 10 is a partially cross-sectional side view of the centrifugal unit in a preferred embodiment of the present invention (the base is omitted). Figure 11 is a schematic diagram of the material pouring action of the centrifugal unit in a preferred embodiment of the present invention.
Claims
1. A surface treatment apparatus comprising a material conveying unit, a drying device, a material unloading device, and a centrifugal unit, wherein: The material barrel conveying unit can transport a material barrel between the inlet and outlet ends of a material barrel conveying path; the drying device is adjacent to the material barrel conveying unit and can transport multiple workpieces coated with paint along a workpiece conveying path from an inlet position to an outlet position and dry them. The workpiece conveying path is parallel to the material barrel conveying path, and the inlet position of the workpiece conveying path is adjacent to the outlet end of the material barrel conveying path. The material pouring device is located at the discharge end of the material barrel conveying path and can receive the material barrel containing multiple workpieces sent out by the material barrel conveying unit, and pour the multiple workpieces contained in the material barrel into the centrifugal unit; and the centrifugal unit is located between the discharge end of the material barrel conveying path of the material barrel conveying unit and the inlet position of the workpiece conveying path of the drying device, and is located below the material pouring device. The centrifugal unit includes a base, a tilting seat, a centrifugal device and a tilting drive device. The tilting seat is tiltably mounted on the base. The centrifugal device is located on the tilting seat and includes a centrifugal barrel and a centrifugal drive device connected to the centrifugal barrel. The centrifugal barrel can receive the multiple workpieces poured out by the material pouring device. The centrifugal drive device can drive the centrifugal barrel containing the multiple workpieces to rotate and spray paint. The tilting drive device is located on the base and connected to the tilting seat, and can drive the tilting seat to tilt, so that the multiple workpieces contained in the centrifugal barrel are poured into the inlet position of the workpiece conveying path of the drying device.
2. The surface treatment apparatus as claimed in claim 1, wherein a flipping shaft is provided on the top of the flipping seat, the flipping shaft is adjacent to the drying device, the flipping seat is connected to the base and can be flipped relative to the base with the flipping shaft as the center, the flipping shaft is connected to the flipping drive device, the flipping drive device drives the flipping shaft to rotate, thereby causing the flipping seat to flip relative to the base.
3. The surface treatment apparatus as claimed in claim 2, wherein the flipping drive device includes a drive cylinder, a gear, and a gear, the drive cylinder is mounted on the base, the gear is connected to the drive cylinder, the gear is connected to the flipping shaft and meshes with the gear, the drive cylinder drives the gear to move relative to the gear, thereby driving the gear to rotate, and driving the flipping shaft to rotate, thereby driving the flipping seat to flip relative to the base.
4. The surface treatment apparatus as claimed in claim 3, wherein the base is provided with a limiting member that extends along the extension and retraction direction of the drive cylinder, the limiting member being located on the side of the toothed row away from the gear and abutting against the toothed row.
5. The surface treatment apparatus as described in any one of claims 1 to 4, wherein the centrifugal device has an outer barrel fixed to the tilting seat, the centrifugal barrel is fitted inside the outer barrel, and a centrifugal hopper is fitted around the outer periphery of the outer barrel.
6. The surface treatment apparatus as described in any one of claims 1 to 4, wherein: The material conveying unit has a frame; and the material pouring device includes a material pouring seat and a material pouring drive device. The material pouring seat is connected to the frame and is adjacent to the top of the frame. The material pouring drive device is fixed to the frame and connected to the material pouring seat, thereby driving the material pouring seat to rotate relative to the frame.
7. The surface treatment apparatus as claimed in claim 6, wherein a clamping member is provided on each of the opposite sides of the pouring seat, the two clamping members being used to clamp and fix the material barrel placed on the pouring seat.
8. The surface treatment apparatus as claimed in claim 7, wherein the two clamps are aligned with the flipping center axis of the pouring seat.