Conveying roller of vacuum coating furnace

Abstract

The utility model discloses a transmission roller of a vacuum coating furnace, which relates to the field of transmission rollers of vacuum coating furnaces and comprises a coating furnace, a support frame is fixedly mounted at the bottom of an inner cavity of the coating furnace, a plurality of transmission rollers are rotatably connected between opposite surfaces of the inner side of the support frame, and two annular grooves are formed in the side surfaces of the plurality of transmission rollers. A transmission belt is in transmission connection between every two adjacent transmission rollers through the corresponding annular groove, a servo motor is fixedly installed on the side face of the supporting frame, and the output end of the servo motor is fixedly connected with one transmission roller. According to the device, the rectangular plate can move upwards along the fixing rod by rotating the adjusting rod, the scraper is in contact with the conveying roller, the surface of the conveying roller can be polished through the scraper so that a coating layer on the surface can be removed, the surface of the conveying roller can be smooth and cannot abrade the coating layer of a workpiece, the scraper can be detached from the rectangular plate, and the working efficiency is improved. And therefore, a new scraper can be replaced to polish the transmission roller.

Description

Technical Field

[0001] The utility model relates to the field of transfer rollers of vacuum coating furnaces, and particularly relates to a transfer roller of a vacuum coating furnace. Background Art

[0002] A vacuum coating furnace is a special device for depositing thin films on the surface of objects. It transforms thin film materials (such as metals, oxides, etc.) from solid state to gaseous state in a high vacuum environment, and then deposits them on the surface of objects to improve the optical properties, electronic performance of objects or increase the decorative effect. A vacuum coating furnace usually includes components such as a vacuum chamber, a vacuum pump system, a heating system, an evaporation source or a sputtering source, a thin film thickness monitoring and control system, etc.

[0003] The vacuum coating furnace obtains a thin film product with specific properties through vacuum pumping, heating the object to an appropriate temperature, releasing and depositing the thin film material. The vacuum coating furnace is widely used in fields such as optical lenses, electronic devices, solar cells, protective coatings, etc. The key lies in being able to control the thickness, uniformity and chemical composition of the thin film to meet the requirements of different applications.

[0004] The existing device transports workpieces through transfer rollers and coats the workpieces during the transportation process. After long-term use, a thick coating layer will adhere to the surface of the transfer rollers. The flatness of this coating layer is poor, which affects the transportation efficiency of the transfer rollers. Moreover, the surface of the coating layer on the transfer rollers is uneven, which will cause wear to the coating layer on the surface of the workpieces, greatly affecting the yield rate of the coated workpieces.

[0005] Therefore, it is very necessary to propose a transfer roller of a vacuum coating furnace to solve the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a transfer roller of a vacuum coating furnace to solve the problems proposed in the above background art that after long-term use, a thick coating layer will adhere to the surface of the transfer roller, the flatness of this coating layer is poor, which affects the transportation efficiency of the transfer roller, and the surface of the coating layer on the transfer roller is uneven, which will cause wear to the coating layer on the surface of the workpieces, greatly affecting the yield rate of the coated workpieces.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A transmission roller for a vacuum coating furnace, comprising a coating furnace. A support frame is fixedly installed at the bottom of the inner cavity of the coating furnace. A plurality of transmission rollers are rotatably connected between the opposite inner surfaces of the support frame. Two annular grooves are provided on the side surfaces of the plurality of transmission rollers. A transmission belt is connected between adjacent two transmission rollers through the annular grooves. A servo motor is fixedly installed on the side surface of the support frame. The output end of the servo motor is fixedly connected to one of the transmission rollers. A fixed rod is fixedly connected to the bottom of the support frame. A rectangular plate is slidably arranged on the side surface of the fixed rod. An adjusting rod is rotatably connected to the bottom of the support frame. The top end of the adjusting rod is threadedly connected to the rectangular plate. A plurality of scrapers are slidably arranged on the top of the rectangular plate. A spraying assembly is arranged at the top of the inner cavity of the coating furnace.

[0008] Preferably, the spraying assembly includes a portal plate fixedly installed at the top of the inner wall of the coating furnace. A delivery pipe is fixedly inserted into the top of the inner wall of the coating furnace. A plurality of rectangular grooves are provided on the top of the portal plate. Two I-shaped plates are slidably arranged on the top of each rectangular groove. Nozzles are fixedly inserted at the bottoms of the plurality of I-shaped plates. A flexible hose is fixedly connected between the top end of the nozzle and the delivery pipe.

[0009] Preferably, tapered sleeves are fixedly sleeved at both ends of the transmission roller. The two tapered sleeves on one transmission roller are symmetrically distributed.

[0010] Preferably, the length of the scraper does not exceed the distance between the two tapered sleeves in the opposite direction. Both ends at the top of the scraper are inclined surfaces, and the inclination angle of the inclined surface fits the shape of the tapered sleeve.

[0011] Preferably, a plurality of baffle plates are fixedly connected between the opposite inner surfaces of the support frame. The two adjacent baffle plates are distributed in a V shape.

[0012] Preferably, the baffle plate is made of flexible rubber material, and a plurality of rollers are rotatably connected to the bottom of the baffle plate.

[0013] Preferably, a diversion groove is provided at the bottom of the inner wall of the coating furnace. A sewage discharge pipe is fixedly inserted into the side surface of the coating furnace.

[0014] The technical effects and advantages of the present utility model:

[0015] 1. The present utility model can make the rectangular plate move upward along the fixed rod by rotating the adjusting rod, and make the scraper contact with the transmission roller. The surface of the transmission roller can be polished by the scraper to remove the coating layer on the surface, so that the surface of the transmission roller is smooth and will not cause wear to the coating layer of the workpiece. The scraper can be disassembled from the rectangular plate to facilitate replacing a new scraper to polish the transmission roller;

[0016] 2. The utility model can freely adjust the distance of the I-type plate through the rectangular groove on the door plate. The nozzle moves with the I-type plate. By moving the I-type plate, the spraying range of the nozzle can be adjusted so as to coat workpieces of different sizes. The conical sleeve is used to make the workpiece always located at the center of the transmission roller so that the nozzle can accurately cover and spray its surface;

[0017] 3. The utility model can limit the workpiece through the baffle and the roller so that it will not fall off the surface of the transmission roller during the transmission process. The sewage in the coating furnace can be collected and diverted through the guide groove so that the sewage is discharged through the sewage pipe to ensure the cleanliness of the inside of the coating furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional view of the transport roller of the vacuum coating furnace is shown;

[0019] Figure 2 What is shown is the schematic diagram of the internal structure of the coating furnace;

[0020] Figure 3 What is shown is a schematic diagram of the connection relationship between the support frame and the transmission roller;

[0021] Figure 4 Shown is an exploded schematic diagram of the positional relationship between the transmission roller and the rectangular plate;

[0022] Figure 5 Shown is a schematic diagram of the position relationship between the conveying pipe and the I-type plate.

[0023] In the figure: 1. Coating furnace; 2. Support frame; 3. Transmission roller; 4. Annular groove; 5. Transmission belt; 6. Servo motor; 7. Fixed rod; 8. Rectangular plate; 9. Adjustment rod; 10. Scraper; 11. Door plate; 12. Delivery pipe; 13. I-type plate; 14. Nozzle; 15. Hose; 16. Conical sleeve; 17. Baffle; 18. Roller; 19. Guide groove; 20. Drain pipe. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments.

[0025] The utility model provides Figures 1 to 5A transmission roller of a vacuum coating furnace shown includes a coating furnace 1. At the bottom of the inner cavity of the coating furnace 1, a support frame 2 is fixedly installed. Between the opposite inner sides of the support frame 2, a plurality of transmission rollers 3 are rotatably connected. On the sides of the plurality of transmission rollers 3, two annular grooves 4 are respectively opened. Between adjacent two transmission rollers 3, a transmission belt 5 is connected through the annular grooves 4 for transmission. On the side of the support frame 2, a servo motor 6 is fixedly installed. The output end of the servo motor 6 is fixedly connected to one of the transmission rollers 3. At the bottom of the support frame 2, a fixed rod 7 is fixedly connected. On the side of the fixed rod 7, a rectangular plate 8 is slidably arranged. At the bottom of the support frame 2, an adjusting rod 9 is rotatably connected. The top end of the adjusting rod 9 is threadedly connected to the rectangular plate 8. On the top of the rectangular plate 8, a plurality of scraping blades 10 are slidably arranged. During use, by rotating the adjusting rod 9, the rectangular plate 8 moves upward along the fixed rod 7, and the scraping blades 10 are brought into contact with the transmission rollers 3. The scraping blades 10 can polish the surfaces of the transmission rollers 3 to remove the coating layers on the surfaces, so that the surfaces of the transmission rollers 3 are smooth and will not cause wear to the coating layers of the workpieces. The scraping blades 10 can be disassembled from the rectangular plate 8 to facilitate replacing new scraping blades 10 for polishing the transmission rollers 3.

[0026] During specific use, the servo motor 6 drives one of the transmission rollers 3 to rotate. The transmission roller 3 drives the remaining transmission rollers 3 to rotate through the transmission belt 5. By opening the door of the coating furnace 1 and then placing the workpieces on the transmission rollers 3, and the plurality of transmission rollers 3 move the plurality of workpieces into the coating furnace 1. Then the door of the coating furnace 1 is closed. A vacuum machine is arranged on the side of the coating furnace 1. At this time, the vacuum machine is started to pump vacuum, and the transmission rollers 3 drive the workpieces to perform linear reciprocating motion, so that the coating paint evenly covers the surfaces of the workpieces to form coating layers. After coating is completed, the door of the coating furnace 1 is opened and the workpieces are removed. Then by rotating the adjusting rod 9, the rectangular plate 8 moves upward along the fixed rod 7, so that the scraping blades 10 are in contact with the lower surfaces of the transmission rollers 3, and the servo motor 6 drives the transmission rollers 3 to rotate. At this time, the scraping blades 10 can polish the surfaces of the transmission rollers 3 to remove the coating layers on the surfaces. When the scraping blades 10 are worn after long-term use, the scraping blades 10 can be disassembled from the rectangular plate 8 to facilitate replacing new scraping blades 10 for polishing the transmission rollers 3.

[0027] At the top of the inner cavity of the coating furnace 1, a spraying assembly is arranged. The spraying assembly is used for spraying coating paint on the workpieces on the transmission rollers 3 and forming coating layers.

[0028] The spraying assembly includes a door-shaped plate 11 fixedly installed on the top of the inner wall of the coating furnace 1, a delivery pipe 12 is fixedly plugged into the top of the inner wall of the coating furnace 1, a plurality of rectangular grooves are opened on the top of the door-shaped plate 11, two I-shaped plates 13 are slidably arranged on the top of each rectangular groove, a nozzle 14 is fixedly plugged into the bottom of the plurality of I-shaped plates 13, a hose 15 is fixedly connected between the top of the nozzle 14 and the delivery pipe 12, when in use, the delivery pipe 12 is externally connected to the paint pipe, and the two I-shaped plates 13 located in the rectangular groove can be freely moved through the rectangular groove, and the I-shaped plates 13 can be adjusted by adjusting the The position allows the nozzle 14 to move with the I-type plate 13. By moving the I-type plate 13, the range of spraying by the nozzle 14 can be adjusted so that workpieces of different sizes can be coated. During the coating process, the paint in the delivery pipe 12 will be delivered to the nozzle 14 through the hose 15, and the coating material will be released into the vacuum chamber by sputtering. These materials will be deposited on the surface of the workpiece under high vacuum conditions to form the required thin film. The workpiece is subjected to a linear reciprocating motion by the transmission roller 3, so that the nozzle 14 can evenly spray the coating material on workpieces of different sizes.

[0029] like Figures 2 to 4 As shown, both ends of the transmission roller 3 are fixedly sleeved with a conical sleeve 16, and the two conical sleeves 16 located on one transmission roller 3 are symmetrically distributed. When in use, the conical sleeve 16 is used to ensure that the workpiece is always located at the center of the transmission roller 3, so that the nozzle 14 can accurately cover and spray its surface.

[0030] During specific use, the conical sleeve 16 prevents the workpiece from moving to the end of the transmission roller 3, thereby ensuring that the workpiece is always located below the spraying range of the nozzle 14 during the movement, so as to improve the coating effect of the workpiece.

[0031] Furthermore, the length of the scraper 10 does not exceed the distance between the two conical sleeves 16 in the relative directions. Both ends of the top of the scraper 10 are inclined surfaces, and the inclination angle of the inclined surfaces matches the shape of the conical sleeve 16. When in use, the scraper 10 can grind the surface of the conical sleeve 16 through the two inclined surfaces to ensure the smoothness of the surface of the conical sleeve 16 so that it will not cause wear to the workpiece.

[0032] like Figures 1 to 3 As shown, a plurality of baffles 17 are fixedly connected between the inner opposite surfaces of the support frame 2, and two adjacent baffles 17 are distributed in a V shape. The baffles 17 can limit the workpiece so that it will not fall off the surface of the transmission roller 3 during the transmission process.

[0033] During specific use, two baffles 17 form a group, and the two groups of baffles 17 are respectively located at the two ends of the support frame 2. The baffles 17 can limit the workpiece during the transmission process so that it will not fall off the surface of the transmission roller 3 during the transmission process. The V-shaped distribution ensures that the limited workpiece is always located at the center of the transmission roller 3 to facilitate the nozzle 14 to perform coating.

[0034] Furthermore, the baffle 17 is made of flexible rubber material, and a plurality of rollers 18 are rotatably connected to the bottom of the baffle 17. When in use, the flexible rubber material is used to prevent the workpiece from hitting the baffle 17 and causing wear of the coating layer. The rollers 18 create rolling friction between the baffle 17 and the workpiece, thereby further reducing the wear of the baffle 17 on the workpiece.

[0035] Furthermore, a guide groove 19 is opened at the bottom of the inner wall of the coating furnace 1, and a sewage pipe 20 is fixedly inserted on the side of the coating furnace 1. When the inside of the coating furnace 1 needs to be cleaned, the delivery pipe 12 can be connected to an external water source, and clean water is sprayed to the inside of the coating furnace 1 through the nozzle 14 for cleaning. The debris scraped out by the scraper 10 flows into the guide groove 19 along with the sewage. The guide groove 19 can collect and guide the sewage in the coating furnace 1, and the guide groove 19 is connected to the sewage pipe 20, so that the sewage is discharged through the sewage pipe 20 to ensure the cleanliness of the inside of the coating furnace 1.

[0036] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A vacuum coating furnace transmission roller, characterized in that: The invention comprises a coating furnace (1), wherein a support frame (2) is fixedly installed at the bottom of the inner cavity of the coating furnace (1), a plurality of transmission rollers (3) are rotatably connected between opposite inner surfaces of the support frame (2), two annular grooves (4) are provided on the sides of the plurality of transmission rollers (3), a transmission belt (5) is connected between two adjacent transmission rollers (3) through the annular grooves (4), a servo motor (6) is fixedly installed on the side of the support frame (2), the output end of the servo motor (6) is fixedly connected to one of the transmission rollers (3), a fixing rod (7) is fixedly connected to the bottom of the support frame (2), a rectangular plate (8) is slidably provided on the side of the fixing rod (7), an adjusting rod (9) is rotatably connected to the bottom of the support frame (2), the top end of the adjusting rod (9) is threadedly connected to the rectangular plate (8), a plurality of scrapers (10) are slidably provided on the top of the rectangular plate (8), and a spraying assembly is provided on the top of the inner cavity of the coating furnace (1).

2. A vacuum coating furnace transmission roller according to claim 1, characterized in that: The spraying assembly comprises a door-shaped plate (11) fixedly mounted on the top of the inner wall of the coating furnace (1), a delivery pipe (12) being fixedly plugged into the top of the inner wall of the coating furnace (1), a plurality of rectangular grooves being provided on the top of the door-shaped plate (11), two I-shaped plates (13) being slidably arranged on the top of each rectangular groove, a nozzle (14) being fixedly plugged into the bottom of the plurality of I-shaped plates (13), a hose (15) being fixedly connected between the top of the nozzle (14) and the delivery pipe (12).

3. A vacuum coating furnace transmission roller according to claim 1, characterized in that: Conical sleeves (16) are fixedly sleeved on both ends of the transmission roller (3), and the two conical sleeves (16) located on one transmission roller (3) are symmetrically distributed.

4. A vacuum coating furnace transmission roller according to claim 3, characterized in that: The length of the scraper (10) does not exceed the distance between the two conical sleeves (16) in opposite directions. Both ends of the top of the scraper (10) are inclined surfaces, and the inclination angle of the inclined surface matches the shape of the conical sleeve (16).

5. The vacuum coating furnace transmission roller according to claim 1, characterized in that: A plurality of baffles (17) are fixedly connected between opposite inner surfaces of the support frame (2), and two adjacent baffles (17) are distributed in a V-shape.

6. A vacuum coating furnace transmission roller according to claim 5, characterized in that: The baffle plate (17) is made of a flexible rubber material, and a plurality of rollers (18) are rotatably connected to the bottom of the baffle plate (17).

7. The vacuum coating furnace transmission roller according to claim 1, characterized in that: A guide groove (19) is provided at the bottom of the inner wall of the coating furnace (1), and a sewage discharge pipe (20) is fixedly plugged into the side of the coating furnace (1).

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