Correction baffle structure

Abstract

The utility model relates to a vacuum coating machine, in particular to a correction baffle structure which comprises a vacuum box body, an installation flange is arranged on the outer side wall of the vacuum box body in a sealing mode, an inner cavity of the installation flange is communicated with the interior of the vacuum box body through a movable hole to form a vacuum cavity, and a rotating shaft is rotationally arranged in the vacuum cavity. The two ends of the rotating shaft penetrate through the vacuum cavity through supporting and sealing mechanisms to be arranged outside the two opposite sides of the mounting flange, and a driving mechanism used for driving the rotating shaft to rotate is arranged outside the mounting flange. The rotating shaft located in the vacuum cavity is fixedly connected with a swing arm through a shaft clamp, the swing arm is installed towards the interior of the vacuum box body through a movable hole, and a correction baffle is installed at the end, away from the movable hole, of the swing arm through a support. And then the correction baffle is driven to rotate to finish angle adjustment of the correction baffle.

Description

Technical Field

[0001] The utility model relates to a vacuum coating machine, in particular to a correction baffle structure. Background Art

[0002] As an important part of vacuum coating machine, the correction baffle structure is mainly used to solve the uniformity of coating. The correction baffle structure usually sets the driving cylinder outside the vacuum box, and the baffle is set inside the vacuum box. The driving cylinder passes through the vacuum box through the transmission shaft and is connected to the hinge mechanism inside the box. The correction plate is connected to the hinge mechanism. A sealing ring is set between the transmission shaft and the vacuum box to isolate the vacuum. The hinge swings through the extension and contraction of the transmission shaft, thereby driving the baffle to flip and play a correction role.

[0003] However, the transmission shaft of this transmission mode is divided into two parts by the sealing ring, one part is in a vacuum environment, and the other part is in an atmospheric environment. When the equipment is coated, the transmission shaft in the vacuum part will be coated with film material. After long-term accumulation of film material on the transmission shaft, the transmission part of the transmission shaft becomes larger and the roundness of the shaft becomes worse. Therefore, when the angle of the correction baffle is adjusted by extending and retracting the transmission shaft, the sealing performance of the sealing ring will be damaged, resulting in vacuum sealing failure, which in turn affects the coating effect and causes equipment failure. Utility Model Content

[0004] The purpose of the utility model is to provide a correction baffle structure to solve the problem that when the angle of the correction baffle is adjusted by extending and retracting the transmission shaft, the accumulated film material supported on the transmission shaft will destroy the sealing performance of the sealing ring, resulting in vacuum sealing failure, thereby affecting the coating effect and causing equipment failure.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A correction baffle structure comprises a vacuum box body, the outer wall of the vacuum box body is sealed with a mounting flange, the inner cavity of the mounting flange is connected with the interior of the vacuum box body through a movable hole to form a vacuum chamber, a rotating shaft is arranged to rotate in the vacuum chamber, two ends of the rotating shaft respectively pass through the vacuum chamber through a supporting sealing mechanism and are placed outside the mounting flange on opposite sides, a driving mechanism for driving the rotating shaft to rotate is arranged outside the mounting flange; the rotating shaft located inside the vacuum chamber is fixedly connected with a swing arm through a shaft clamp, the swing arm is installed toward the interior of the vacuum box body through the movable hole, and a correction baffle is installed on the end of the swing arm away from the movable hole through a bracket.

[0007] A further technical solution is that the supporting sealing mechanism includes a supporting bearing, a shaft ring and an end cover, and a first connecting hole and a second connecting hole for the rotating shaft to pass through are opened on opposite sides of the mounting flange, and the first connecting hole and the second connecting hole are respectively provided with supporting bearings, and the inner walls of the first connecting hole and the second connecting hole are respectively connected to the outer ring of the supporting bearing, and the rotating shaft is connected to the inner ring of the supporting bearing; the shaft ring is arranged on the first connecting hole, and the end cover is arranged at the opening of the second connecting hole and connected to the mounting flange, and an O-ring is installed at the connection between the end cover and the mounting flange.

[0008] A further technical solution is that the driving mechanism includes a driving cylinder, which is arranged on a side of the mounting flange away from the vacuum box, and the output end of the driving cylinder is connected to one end of the rotating shaft through a hinge mechanism to drive the rotating shaft to rotate.

[0009] A further technical solution is to provide an adjustment block on the mounting flange near the hinge mechanism, the adjustment block is penetrated by an adjustment threaded hole facing the hinge mechanism, and the inner thread of the adjustment threaded hole is matched with an adjustment screw.

[0010] A further technical solution is that a film material baffle is movably arranged near the movable hole of the swing arm, hanging rods are arranged on opposite sides of the swing arm, a movable groove is opened on the top of the film material baffle, and a hanging hole matching the hanging rod is arranged on the side of the film material baffle near the movable groove.

[0011] Compared with the prior art, the beneficial effect of the utility model is as follows: by arranging a driving mechanism on the outside of the mounting flange, the driving mechanism cooperates with the supporting sealing mechanism to drive the rotating shaft to rotate, and then drives the correction baffle to rotate, thereby completing the adjustment of the correction baffle angle. The rotating shaft only rotates under the drive of the driving mechanism, and the film material accumulated on the rotating shaft for a long time will not damage the supporting sealing mechanism due to the rotation of the rotating shaft, thereby avoiding the failure of the vacuum seal, affecting the coating effect and causing equipment failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a three-dimensional schematic diagram of a correction baffle structure.

[0013] Figure 2 The utility model is a side view of a modified baffle structure.

[0014] Figure 3 This is an internal cross-sectional view of the mounting flange of the utility model.

[0015] Figure 4 This is a schematic diagram of the connection between the membrane material baffle and the swing arm of the utility model.

[0016] Icons: 1-vacuum box, 2-mounting flange, 3-movable hole, 4-vacuum chamber, 5-rotating axis, 6-axis clamp, 7-swing arm, 8-correction baffle, 9-support bearing, 10-axis ring, 11-end cover, 12-first connecting hole, 13-second connecting hole, 14-O-ring, 15-driving cylinder, 16-output end, 17-hinge mechanism, 18-adjustment block, 19-adjustment screw, 20-film material baffle, 21-hanging rod, 22-movable slot, 23-hanging hole, 24-bracket. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] Example:

[0019] refer to Figures 1 to 4A correction baffle 8 structure is shown, including a vacuum box 1, characterized in that: the outer wall of the vacuum box 1 is sealed with a mounting flange 2, the inner cavity of the mounting flange 2 is connected to the inside of the vacuum box 1 through a movable hole 3 to form a vacuum chamber 4, a rotating shaft 5 is rotatably arranged in the vacuum chamber 4, and both ends of the rotating shaft 5 pass through the vacuum chamber 4 through a supporting sealing mechanism and are placed outside the mounting flange 2 on opposite sides, and a driving mechanism for driving the rotating shaft 5 to rotate is arranged outside the mounting flange 2; the rotating shaft 5 located inside the vacuum chamber 4 is fixedly connected to a swing arm 7 through a shaft clamp 6, the swing arm 7 is installed toward the inside of the vacuum box 1 through the movable hole 3, and the end of the swing arm 7 away from the movable hole 3 is installed through a bracket 24 There is a correction baffle 8. During actual use of the utility model, the driving mechanism drives the rotating shaft 5 to rotate, and then drives the correction baffle 8 to rotate through the swing arm 7 to complete the adjustment of the correction plate angle. The driving mechanism is arranged on the outside of the mounting flange 2 to drive the rotating shaft 5 to rotate. When film material enters the vacuum chamber 4 of the mounting flange 2, it accumulates on the rotating shaft 5. However, since the rotating shaft 5 only rotates and does not telescopic movement on the supporting sealing mechanism, the rotating shaft 5 and the supporting sealing mechanism will not have a sealing failure phenomenon. This can prevent the transmission shaft of the transmission correction baffle 8 in the prior art from being divided into two parts by the sealing ring, one part is in a vacuum environment, and the other part is in an atmospheric environment. When the equipment is coating, the transmission shaft in the vacuum part will be coated with film material. After long-term accumulation of film material, the transmission part of the transmission shaft becomes larger and the roundness of the shaft becomes worse. Therefore, when the angle of the correction baffle 8 is adjusted by telescoping the transmission shaft, the sealing performance of the sealing ring will be destroyed, resulting in vacuum sealing failure, which in turn affects the coating effect and causes equipment failure. The supporting sealing mechanism can ensure the stability of the rotating shaft 5 during rotation, and can also seal both ends of the rotating shaft 5 to prevent air from entering the vacuum box 1.

[0020] refer to Figures 1 to 3 It is shown that the support sealing mechanism includes a support bearing 9, a shaft ring 10 and an end cover 11. A first connecting hole 12 and a second connecting hole 13 for the rotating shaft 5 to pass through are opened on opposite sides of the mounting flange 2. The first connecting hole 12 and the second connecting hole 13 are respectively provided with support bearings 9. The inner walls of the first connecting hole 12 and the second connecting hole 13 are respectively connected to the outer ring of the support bearing 9, and the rotating shaft 5 is connected to the inner ring of the support bearing 9; the shaft ring 10 is arranged on the first connecting hole 12, and the end cover 11 is arranged at the opening of the second connecting hole 13 and connected to the mounting flange 2. An O-ring 14 is installed at the connection between the end cover 11 and the mounting flange 2. In actual use, the support bearing 9 can ensure the stability of the rotating shaft 5 during rotation, the shaft ring 10 can seal the first connecting hole 12, and the end cover 11 and the O-ring 14 can completely seal the second connecting hole 13. At the same time, the end cover 11 can also seal the end of the rotating shaft 5 as a whole to prevent the end of the rotating shaft 5 from leaking into the external environment and causing unsafe factors.

[0021] refer to Figures 1 to 4 As shown, the driving mechanism includes a driving cylinder 15, which is arranged on a side of the mounting flange 2 away from the vacuum box 1, and the output end 16 of the driving cylinder 15 is connected to one end of the rotating shaft 5 through a hinge mechanism 17 to drive the rotating shaft 5 to rotate. An adjusting block 18 is provided on the mounting flange 2 near the hinge mechanism 17, and an adjusting threaded hole is provided on the adjusting block 18 toward the hinge mechanism 17. The inner thread of the adjusting threaded hole is matched with an adjusting screw 19. In actual use, the driving cylinder 15 and the hinge mechanism 17 are used to drive the rotating shaft 5 to rotate. The driving cylinder 15 can accurately control the telescopic length of its output end 16, and the rotation of the rotating shaft 5 is driven by the hinge mechanism 17, so as to facilitate the control of the rotation angle of the correction baffle 8. The adjusting screw 19 is threadedly engaged with the adjusting threaded hole. By controlling the position of the adjusting screw 19 and the adjusting block 18, the position of the adjusting screw 19 against the hinge mechanism 17 is controlled. When the position of the correction baffle 8 is determined, it is convenient to further control the position of the correction baffle 8 not to change, thereby ensuring the stability of the correction baffle 8.

[0022] refer to Figure 1 , Figure 2 and Figure 4 As shown, a film material baffle 20 is movably arranged near the movable hole 3 on the swing arm 7, hanging rods 21 are arranged on opposite sides of the swing arm 7, a movable groove 22 is opened at the top of the film material baffle 20, and a hanging hole 23 matching the hanging rod 21 is arranged on the side of the film material baffle 20 near the movable groove 22. By movably arranging the film material baffle 20 near the movable hole 3 on the swing arm 7, the top of the film material baffle 20 is movably arranged on both sides of the swing arm 7 through the movable groove 22, and the film material baffle 20 as a whole covers the opening of the movable hole 3, and the film material The baffle 20 can prevent most of the film material from directly entering the vacuum side of the mounting flange 2 through the movable hole 3 and accumulating on the rotating shaft 5, thereby affecting the accuracy of the subsequent rotation angle of the rotating shaft 5 driven by the swing arm 7 to correct the baffle 8. The film material baffle 20 is connected to the swing arm 7 through the hanging rod 21 and the hanging hole 23. When the swing arm 7 rotates, the hanging rod 21 and the hanging hole 23 are rotationally connected, so that the film material baffle 20 can be always vertically installed close to the movable hole 3 to prevent the film material from directly entering the vacuum chamber 4.

[0023] Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the disclosure, drawings, and claims of the present application, various modifications and improvements may be made to the components and / or layout of the subject combination layout. In addition to the modifications and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A correction baffle structure, comprising a vacuum box (1), characterized in that: The outer wall of the vacuum box (1) is sealed with a mounting flange (2); the inner cavity of the mounting flange (2) is connected to the inside of the vacuum box (1) through a movable hole (3) to form a vacuum chamber (4); a rotating shaft (5) is rotatably arranged in the vacuum chamber (4); two ends of the rotating shaft (5) respectively penetrate through the vacuum chamber (4) through a supporting sealing mechanism and are placed outside the mounting flange (2) on opposite sides; a driving mechanism for driving the rotating shaft (5) to rotate is arranged outside the mounting flange (2); the rotating shaft (5) located inside the vacuum chamber (4) is fixedly connected to a swing arm (7) through a shaft clamp (6); the swing arm (7) is installed toward the inside of the vacuum box (1) through the movable hole (3); and a correction baffle (8) is installed at one end of the swing arm (7) away from the movable hole (3) through a bracket (24).

2. A correction baffle structure according to claim 1, characterized in that: The support sealing mechanism comprises a support bearing (9), a shaft ring (10) and an end cover (11); a first connecting hole (12) and a second connecting hole (13) for the rotating shaft (5) to pass through are formed on opposite sides of the mounting flange (2); the first connecting hole (12) and the second connecting hole (13) are respectively provided with the support bearing (9); the inner walls of the first connecting hole (12) and the second connecting hole (13) are respectively connected to the outer ring of the support bearing (9); the rotating shaft (5) is connected to the inner ring of the support bearing (9); the shaft ring (10) is provided on the first connecting hole (12); the end cover (11) is provided at the opening of the second connecting hole (13) and is connected to the mounting flange (2); an O-ring (14) is installed at the connection between the end cover (11) and the mounting flange (2).

3. A correction baffle structure according to claim 1, characterized in that: The driving mechanism comprises a driving cylinder (15), wherein the driving cylinder (15) is arranged on a side of the mounting flange (2) away from the vacuum box (1), and an output end (16) of the driving cylinder (15) is connected to one end of the rotating shaft (5) via a hinge mechanism (17) for driving the rotating shaft (5) to rotate.

4. A correction baffle structure according to claim 3, characterized in that: An adjustment block (18) is provided on the mounting flange (2) near the hinge mechanism (17), and an adjustment threaded hole is formed through the adjustment block (18) and faces the hinge mechanism (17), and an adjustment screw (19) is connected to the inner thread of the adjustment threaded hole.

5. The correction baffle structure according to claim 1, characterized in that: A film material baffle (20) is movably provided on the swing arm (7) near the movable hole (3), hanging rods (21) are provided on opposite sides of the swing arm (7), a movable groove (22) is provided at the top of the film material baffle (20), and a hanging hole (23) matching the hanging rod (21) is provided on one side of the film material baffle (20) near the movable groove (22).

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