On-line powder removing device for lamp tube

Abstract

The utility model discloses a lamp tube on-line powder removing device which comprises a first conveying belt used for conveying lamp tubes and further comprises two sets of second conveying belts located on the two sides of the first conveying belt, the two sets of second conveying belts operate in an O-shaped path, a plurality of polishing pieces are fixedly installed on chain plates of the two sets of second conveying belts along the O-shaped motion path, and the polishing pieces are arranged on the chain plates of the two sets of second conveying belts. The polishing part comprises a mounting plate fixedly mounted on the chain plate, a long bearing is movably arranged on the mounting plate, a limiting rod slidably arranged on the mounting frame is fixedly arranged on the outer wall of the long bearing, the long bearing fixedly sleeves the hollow rotating shaft, a polishing head is fixed to one end of the hollow rotating shaft, and the polishing head is fixed to the other end of the hollow rotating shaft. And the other end of the hollow rotating shaft is rotationally connected with the rotating joint. According to the device, continuous grinding and powder removing operation can be conducted on the two ends of the lamp tube conveyed on the first conveying belt, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lamp tube manufacturing, and particularly relates to an on-line dust removing device for lamp tubes. Background Art

[0002] In the process of lamp tube processing, it is an important step to scrape off the dust on a section of the lamp tube extending from the tube orifice into the lamp tube (generally 1.5 to 2 cm away from the tube orifice). This is mainly because the presence of dust may have an adverse impact on the performance and service life of the lamp tube.

[0003] Generally, the existing method is to use grinding rollers to grind the inner cavities at both ends of the lamp tubes on the conveyor belt to remove dust. The steps are as follows: when the conveyor belt transports the lamp tube to the grinding position, the conveyor belt stops moving, the grinding rollers on both sides rotate and move closer to the lamp tube through cylinders, and finally extend into the lamp tube to complete the dust scraping operation at the tube orifice. After the operation is completed, the grinding rollers return to their original positions under the drive of the cylinders. At this time, the conveyor belt works to transport the next lamp tube to the grinding position, and so on; in the above steps, since the conveyor belt needs to work intermittently during grinding, the overall grinding and dust removal efficiency is low. Therefore, this application provides an on-line dust removing device for lamp tubes to meet the requirements. Content of the Utility Model

[0004] The purpose of this application is to provide an on-line dust removing device for lamp tubes to solve the technical problem of low working efficiency of existing dust removing equipment.

[0005] To achieve the above object, the present application provides the following technical solution: An on-line powder removing device for lamp tubes, which includes a first conveyor belt for conveying lamp tubes, and further includes two groups of second conveyor belts located on both sides of the first conveyor belt. The two groups of second conveyor belts operate in an O-shaped path. A plurality of grinding members are fixedly installed on the chain plates of the two groups of second conveyor belts along the O-shaped movement path. The grinding member includes a mounting plate fixedly installed on the chain plate. A long bearing is movably arranged on the mounting plate, and a limiting rod slidably arranged with the mounting plate is fixedly provided on the outer wall of the long bearing. The long bearing is fixedly sleeved on the hollow rotating shaft. A grinding head is fixedly provided at one end of the hollow rotating shaft. The other end of the hollow rotating shaft is rotatably connected to a rotary joint. The air outlet end of the rotary joint is slidably arranged in the air inlet end of the L-shaped air duct. The L-shaped air duct is installed on the mounting plate. An electric slide rail is fixed on the mounting plate and below the hollow rotating shaft. A slider is installed on the electric slide rail. The upper end of the slider is fixedly provided with a connecting rod. The upper end of the connecting rod is rotatably connected to the hollow rotating shaft through a bearing. A rotating rod is rotatably arranged on the mounting plate and above the hollow rotating shaft. A third bevel gear and a driving gear meshed with the long rack are respectively arranged on the rotating rod. The third bevel gear is meshed with a second bevel gear installed on the output shaft of the driving motor. The driving motor is installed on the mounting plate. A rotating shaft is vertically rotatably arranged in the inner cavity of the L-shaped air duct. A first bevel gear meshed with the third bevel gear is fixedly provided at the end of the rotating shaft located outside the L-shaped air duct. An air suction blade is installed at the end of the rotating shaft located in the inner cavity of the L-shaped air duct.

[0006] The driving motor, the electric slide rail, the first conveyor belt and the second conveyor belt are all electrically connected to the PLC controller.

[0007] As a preferred implementation manner in this embodiment, it further includes a powder receiving device arranged below the second conveyor belt. The powder receiving device includes a housing with a filter screen inside and a discharge port at the lower end. A pump body is arranged on the outer wall of the housing. The water inlet end of the pump body is located in the inner cavity of the housing. The water outlet end of the pump body is connected to a plurality of atomizing nozzles. A layer of filter gauze layer is provided on the surface of the filter screen.

[0008] As a preferred implementation manner in this embodiment, a hollow baffle is fixed in the inner cavity of the housing. The plurality of atomizing nozzles are arranged in an O-shaped manner at the lower end of the hollow baffle and communicate with the inner cavity of the hollow baffle. The water outlet end of the pump body communicates with the inner cavity of the hollow baffle.

[0009] As a preferred implementation manner in this embodiment, the filter screen is arranged in a conical structure, with a wider upper part and a narrower lower part, and a discharge port is arranged at the bottom of the filter screen.

[0010] As a preferred implementation manner in this embodiment, an exciter is provided on the outer wall of the filter screen.

[0011] As a preferred implementation manner in this embodiment, guide limiting plates that open outward are provided on the outer walls of both sides of the frame of the first conveyor belt.

[0012] In summary, the technical effects and advantages of the present utility model are as follows:

[0013] The structure of the present utility model is reasonable. This device can realize continuous grinding and dust removal operations on both ends of the lamp tubes transported on the first conveyor belt, greatly improving work efficiency.

[0014] In the present utility model, dust reduction treatment is carried out by atomization to prevent dust from spreading.

[0015] In the present utility model, the filter screen is arranged in a conical structure that is wider at the top and narrower at the bottom, and an exciter is provided at its bottom. The exciter drives the filter screen to vibrate, which is beneficial for the dust on the filter screen to move downward along its inclined surface, avoiding blockage of the filter screen. The dust particles shaken off can be discharged from the discharge port provided at the lower end of the housing. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 For Figure 1 it is a schematic diagram of the structure of the grinding part in

[0019] Figure 3 For Figure 2 it is a schematic diagram of the side view and partial cross-section structure of the grinding part in

[0020] Figure 4 For Figure 1 it is a schematic diagram of the front view cross-section structure of the housing in

[0021] In the figure: 1. First conveyor belt; 2. Second conveyor belt; 3. Housing; 31. Filter screen; 32. Pump body; 33. Hollow baffle; 34. Atomizing nozzle; 35. Vibrator; 4. Hollow rotating shaft; 5. Long rack; 6. Mounting plate; 7. Rotary joint; 8. Long bearing; 9. Limit rod; 10. Electric slide rail; 11. Connecting rod; 12. L-shaped air duct; 13. Rotating rod; 14. Rotating shaft; 15. First bevel gear; 16. Second bevel gear; 17. Driving motor; 18. Third bevel gear; 19. Driving gear; 20. Grinding head; 21. Guide and limit plate. Specific implementation manner

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiment: Refer to Figure 1-3 An on-line powder removal device for lamp tubes shown in the figure, which includes a first conveyor belt 1 for conveying lamp tubes, and also includes two groups of second conveyor belts 2 located on both sides of the first conveyor belt 1. The two groups of second conveyor belts 2 operate along an O-shaped path. A plurality of grinding parts are fixedly installed on the chain plates of the two groups of second conveyor belts 2 along the O-shaped movement path. The grinding parts include a mounting plate 6 fixedly installed on the chain plate. A long bearing 8 is movably arranged on the mounting plate 6, and a limit rod 9 slidably arranged with the mounting plate 6 is fixedly provided on the outer wall of the long bearing 8. The long bearing 8 is fixedly sleeved on a hollow rotating shaft 4. One end of the hollow rotating shaft 4 is fixedly provided with a grinding head 20. The other end of the hollow rotating shaft 4 is rotatably connected to a rotary joint 7. The air outlet end of the rotary joint 7 is slidably arranged in the air inlet end of an L-shaped air duct 12. The L-shaped air duct 12 is installed on the mounting plate 6. An electric slide rail 10 is fixedly installed on the mounting plate 6 and below the hollow rotating shaft 4. A slider is installed on the electric slide rail 10, and the upper end of the slider is fixedly provided with a connecting rod 11. The upper end of the connecting rod 11 is rotatably connected to the hollow rotating shaft 4 through a bearing. A rotating rod 13 is rotatably arranged on the mounting plate 6 and above the hollow rotating shaft 4. A third bevel gear 18 and a driving gear 19 meshing with a long rack 5 are respectively arranged on the rotating rod 13. The third bevel gear 18 is meshed with a second bevel gear 16 installed on the output shaft of a driving motor 17. The driving motor 17 is installed on the mounting plate 6. A rotating shaft 14 is vertically rotatably arranged in the inner cavity of the L-shaped air duct 12. A first bevel gear 15 meshing with the third bevel gear 18 is fixedly provided on the end of the rotating shaft 14 located outside the L-shaped air duct 12. An air suction blade is installed on the end of the rotating shaft 14 located in the inner cavity of the L-shaped air duct 12;

[0024] The drive motor 17, the electric slide rail 10, the first conveyor belt 1 and the second conveyor belt 2 are all electrically connected to the PLC controller.

[0025] During operation, the first conveyor belt 1 and the two second conveyor belts 2 work synchronously. When the second conveyor belt 2 is working, it drives a plurality of grinding parts arranged thereon to perform an "O"-shaped movement. When the single grinding parts on both sides are aligned with the two ends of the opposite lamp tube (at this time, the lamp tube and the two single grinding parts move horizontally at the same speed), the PLC controller controls the electric slide rail 10 to make the hollow rotating shaft 4 drive the two grinding heads 20 to move closer to the lamp tube. At the same time, it controls the drive motor 17 to work. Through the tooth connection between the bevel gears and between the drive gear 19 and the long rack 5, it drives the grinding head 2 and the rotating shaft 14 to rotate. The grinding head 2 will move to the inner cavity of the lamp tube end and grind the phosphor powder in the inner cavity of the lamp tube port by rotating grinding. The rotation of the rotating shaft 14 will drive the suction blades to rotate. As the suction blades rotate, negative pressure is generated, sucking the dust generated by grinding into the L-shaped air duct 12 and finally discharging it from its exhaust end. After grinding, the electric slide rail 10 is controlled to drive the hollow rotating shaft 4 to move out of the lamp tube inner cavity and return to its original position to stop working. This device can realize continuous grinding and dust removal operations on both ends of the lamp tubes transported on the first conveyor belt 1, with high working efficiency.

[0026] It should be noted that: First, the support frame for supporting the lamp tube on the first conveyor belt 1 is set in a V-shaped structure, and the two ends of the lamp tube are located in the V-shaped cavities of the two support frames, which is beneficial to the stability of the lamp tube; Second, the moving directions of the two second conveyor belts 2 during operation are as Figure 1 shown by the direction marks in the figure, and the rotation directions of the two grinding heads 20 for grinding the powder at both ends of the same lamp tube are opposite during operation. The purpose is to make the friction forces acting on both ends of the same lamp tube during powder grinding in opposite directions, which is beneficial to the stability of the lamp tube during grinding; Third, the grinding head includes a plurality of L-shaped grinding blocks arranged in a circle and at equal intervals. There are gaps between adjacent L-shaped grinding blocks, which is beneficial to the powder generated after grinding to be quickly sucked into the L-shaped air duct 12 through the inner cavity of the hollow rotating shaft 4. The grinding front end of the L-shaped grinding block is set as an arc-shaped guiding grinding surface, which is beneficial to the powder grinding operation of the lamp tube.

[0027] As a preferred implementation method in this embodiment, as Figure 1 and Figure 4 shown, it further includes a powder receiving device arranged below the second conveyor belt 2. The powder receiving device includes a housing 3 with a filter screen 31 inside and a discharge port at the lower end. A pump body 32 is arranged on the outer wall of the housing 3. The water inlet end of the pump body 32 is located in the inner cavity of the housing 3, and the water outlet end of the pump body 32 is connected to a plurality of atomizing nozzles 34. A layer of filter gauze layer is arranged on the surface of the filter screen 31.

[0028] The housing 3 is filled with water. By controlling the operation of the pump body 32, the water is atomized through the atomizing nozzle 34 to perform dust reduction treatment on the gas containing dust discharged from the L-shaped air duct 12, which can avoid dust diffusion and affect the surrounding air quality. Its water level is below the L-shaped air duct 12, and its filter screen 31 is used to filter the sewage containing dust, and the filtered water is recycled through the pump body 32.

[0029] It should be noted that, first, the water inlet end of the pump body 32 is located between the filter screen 31 and the inner wall of the housing 3, and the water inlet end is set at a high position to prevent the dust accumulated at the bottom of the housing 3 from being sucked into the pump body 32 and causing blockage of the atomizing nozzle 34; second, the lower end of the housing 3 is set as a conical structure, which is beneficial to the accumulation of dust particles at the discharge port provided at the lower end of the housing 3 (a control valve is provided at the discharge port).

[0030] As a preferred implementation manner in this embodiment, as Figure 4 shown, a hollow baffle 33 is fixed in the inner cavity of the housing 3. A plurality of atomizing nozzles 34 are arranged in an O shape at the lower end of the hollow baffle 33 and communicate with the inner cavity of the hollow baffle 33. The water outlet end of the pump body 32 communicates with the inner cavity of the hollow baffle 33.

[0031] The setting of the hollow baffle 33 can block the water mist, effectively avoiding the diffusion of the water mist. The hollow baffle 23 is set as an O-shaped structure and is adapted to the O-shaped cavity at the upper end of the housing 3.

[0032] As a preferred implementation manner in this embodiment, as Figure 4 shown, the filter screen 31 is set as a conical structure, and is wider at the top and narrower at the bottom. There is a discharge port at the bottom of the filter screen 31.

[0033] Its purpose is to enable the dust accumulated on the filter screen 31 to move downward along its inclined surface and gather at the discharge port provided at the lower end of the housing 3, which can effectively reduce the risk of blockage of the filter screen 31.

[0034] It should be noted that, first, the upper end of the filter screen 31 is set as an O shape; second, to ensure that a hollow ceramic filter column can be connected to the water inlet end of the pump body 32 to pump the filtered water into the pump body 32, which can avoid blockage of the atomizing nozzle 34.

[0035] As a preferred implementation manner in this embodiment, as Figure 4 shown, a vibrator 35 is provided on the outer wall of the filter screen 31.

[0036] Driving the filter screen 31 to vibrate through the vibrator 35 is beneficial to the downward movement of the dust on the filter screen 31 along its inclined surface, and can avoid blockage of the filter screen 31.

[0037] As a preferred implementation manner in this embodiment, asFigure 1 As shown in the figure, guide and limit plates 21 that open outward are provided on the outer walls of both sides of the frame of the first conveyor belt 1.

[0038] The setting of the guide and limit plates 21 can adjust the position of the lamp tube, so that the distances from both ends of the lamp tube exceeding the support frame are the same, which is beneficial for the grinding heads 20 on both sides to simultaneously grind the two ends of the lamp tube (when grinding, the rotation directions of the two grinding heads 20 of the same lamp tube are opposite), and is beneficial for the stability of the lamp tube during grinding.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An online powder removal device for lamp tubes, comprising a first conveyor belt (1) for conveying lamp tubes, characterized in that: The invention also comprises two groups of second conveyor belts (2) located on both sides of the first conveyor belt (1), the two groups of second conveyor belts (2) running in an O-shaped path, a plurality of grinding pieces fixedly mounted on the chain plates of the two groups of second conveyor belts (2) along the O-shaped movement path, the grinding pieces comprising a mounting plate (6) fixedly mounted on the chain plates, a long bearing (8) movably arranged on the mounting plate (6), and a limit rod (9) fixedly mounted on the outer wall of the long bearing (8) slidingly arranged with the mounting plate (6), the long The bearing (8) is fixedly sleeved on the hollow rotating shaft (4); a grinding head (20) is fixed on one end of the hollow rotating shaft (4); the other end of the hollow rotating shaft (4) is rotatably connected to a rotary joint (7); an air outlet end of the rotary joint (7) is slidably arranged in an air inlet end of an L-shaped air guide tube (12); the L-shaped air guide tube (12) is mounted on the mounting plate (6); an electric slide rail (10) is fixed on the mounting plate (6) and located below the hollow rotating shaft (4); and the electric slide rail (10) is A slider is mounted on the rail (10), and a connecting rod (11) is fixed to the upper end of the slider, and the upper end of the connecting rod (11) is rotatably connected to the hollow rotating shaft (4) via a bearing. A rotating rod (13) is rotatably arranged on the mounting plate (6) and located above the hollow rotating shaft (4). A third bevel gear (18) and a driving gear (19) meshingly connected to the long rack (5) are respectively arranged on the rotating rod (13). The third bevel gear (18) is connected to the output of the driving motor (17). The second bevel gear (16) mounted on the shaft is meshed and connected, the driving motor (17) is mounted on the mounting plate (6), the inner cavity of the L-shaped air duct (12) is provided with a rotating shaft (14) for vertical rotation, and the first bevel gear (15) meshed and connected with the third bevel gear (18) is fixed on the end of the rotating shaft (14) located outside the L-shaped air duct (12), and the end of the rotating shaft (14) located in the inner cavity of the L-shaped air duct (12) is provided with an air suction blade; The driving motor (17), the electric slide rail (10), the first conveyor belt (1) and the second conveyor belt (2) are all electrically connected to a PLC controller.

2. The on-line powder removal device for lamp tubes according to claim 1, characterized in that: It also includes a powder receiving device arranged below the second conveyor belt (2), the powder receiving device including a shell (3) with a filter screen (31) inside and a discharge port at the lower end, a pump body (32) is arranged on the outer wall of the shell (3), the water inlet end of the pump body (32) is located in the inner cavity of the shell (3), the water outlet end of the pump body (32) is connected to a plurality of atomizing nozzles (34), and a filter gauze layer is arranged on the surface of the filter screen (31).

3. The on-line powder removal device for lamp tubes according to claim 2, characterized in that: A hollow baffle (33) is fixed to the inner cavity of the shell (3); a plurality of atomizing nozzles (34) are arranged in an O-shape at the lower end of the hollow baffle (33) and communicate with the inner cavity of the hollow baffle (33); and a water outlet end of the pump body (32) communicates with the inner cavity of the hollow baffle (33).

4. The on-line powder removal device for lamp tubes according to claim 3, characterized in that: The filter screen (31) is configured as a conical structure, and is configured to be wide at the top and narrow at the bottom; a discharge port is provided at the bottom of the filter screen (31).

5. The on-line powder removal device for lamp tubes according to claim 4, characterized in that: An exciter (35) is provided on the outer wall of the filter screen (31).

6. The on-line powder removal device for lamp tubes according to claim 1, characterized in that: Outwardly opening guide limit plates (21) are provided on the outer walls on both sides of the frame of the first conveyor belt (1).

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