A stable vertical lift door

Abstract

A kind of stable vertical lift door, including two left and right symmetrical ball spline guide shafts, the upper end of ball spline guide shaft is installed at the opening of vacuum cavity through support, the lower end of ball spline guide shaft is fixedly installed lower baffle;Door body is installed on ball spline guide shaft through connecting block and ball spline movable installation on both sides;The utility model discloses through ball screw control door body lifting, through ball spline guide shaft, connecting plate, synchronous wheel and mounting block, the stability of door body is increased, the problem that the sealing property, stability and reliability of heavy cabin door in vacuum coating equipment are insufficient is solved, compact structure, stable and reliable.

Description

Technical Field

[0001] This utility model relates to a lifting door, specifically a stable vertical lifting door, and belongs to the field of vacuum coating technology. Background Technology

[0002] A lifting door is an industrial door that uses a vertical lifting structure. It can be used in any situation where there is insufficient horizontal space but ample vertical space, and an automatic and stable vertical lifting door structure is required.

[0003] Large equipment such as vapor-deposited aluminum takes a long time to open and close. If the film is not broken, the winding core can be replaced without opening the entire equipment. A quick replacement operation is required. However, due to the requirements of vacuum chamber equipment, the existing sliding doors and other lifting door structures mostly adopt the form of roller shutters, which cannot meet the sealing requirements of vacuuming the equipment later. Summary of the Invention

[0004] The purpose of this invention is to provide a stable vertical lifting door, a compact and reliable heavy-duty chamber door for vacuum coating equipment, which can solve the vacuum sealing requirements of the equipment and improve production efficiency.

[0005] To achieve the above objectives, this utility model provides a stable vertical lifting door, comprising two symmetrically arranged ball spline guide shafts whose upper ends are mounted on the opening of a vacuum chamber via brackets, and a lower baffle is fixedly mounted on the lower ends of the ball spline guide shafts; the two sides of the door body are movably mounted on the ball spline guide shafts via connecting blocks and ball splines.

[0006] Furthermore, in this utility model, a motor is mounted on the lower center of the lower baffle via a bracket. The motor's drive wheel is connected to the synchronous pulleys at both ends of the lower baffle via a belt drive. The synchronous pulleys are connected to the lower end of the ball screw. The ball screw's screw is parallel to the ball spline guide shaft. The ball screw nut drives the ball spline to slide up and down along the ball spline guide shaft via a connecting plate.

[0007] Furthermore, an idler wheel is added between the driving wheel and the synchronizing wheel in this invention.

[0008] Furthermore, the two ends of the connecting block of this utility model are connected to the mounting block and the ball spline respectively through a rotating shaft and a bushing, and the mounting block is fixedly installed on the door body by screws.

[0009] Furthermore, the door body of this utility model has slots at the top and bottom, and a handwheel is installed at the opening of the vacuum cavity corresponding to the slot.

[0010] Compared with the prior art, this utility model controls the lifting and lowering of the door body by means of a ball screw, and increases the stability of the door body by means of a ball spline guide shaft, connecting plate, synchronous wheel and mounting block. It solves the problems of insufficient sealing, stability and reliability of heavy-duty chamber doors in vacuum coating equipment. The structure is compact, stable and reliable. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a structural diagram of the lower baffle of the utility model; Figure 3 This is a diagram showing the connection state of the mounting block, connecting block, and ball spline of the utility model. Figure 4 This is a perspective view of the connecting block of the utility model.

[0012] In the diagram: 1. Door body, 2. Ball screw, 3. Ball spline guide shaft, 4. Connecting plate, 5. Synchronous pulley, 6. Mounting block, 7. Handwheel, 8. Idler wheel, 9. Motor, 91. Drive wheel, 10. Lower baffle, 11. Ball spline, 12. Connecting block. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] like Figures 1 to 4 As shown, a stable vertical lifting door includes a door body 1, a ball screw 2, a ball spline guide shaft 3, a connecting plate 4, a synchronous pulley 5, a mounting block 6, a handwheel 7, an idler pulley 8, a motor 9, a drive wheel 91, a lower baffle 10, a ball spline 11, and a connecting block 12. The upper ends of two symmetrically arranged ball spline guide shafts 3 are mounted on the opening of the vacuum chamber via brackets for equipment connection. The lower end of the ball spline guide shaft 3 is fixedly mounted on the lower baffle 10. The two sides of the door body 1 are movably mounted on the ball spline guide shaft 3 via the connecting block 12 and the ball spline 11. The door body 1 moves back and forth on the ball spline guide shaft 3 with the help of the mounting block 6, the connecting block 12, and the ball spline 11 to ensure the stability of the door body 1 during lifting.

[0015] like Figure 1 and Figure 2 As shown, the lower baffle 10 of this utility model has a motor 9 mounted on the lower center via a bracket. The drive wheel 91 of the motor 9 is connected to the synchronous wheels 5 at both ends of the lower baffle 10 via a belt drive. The synchronous wheels 5 are connected to the lower end of the screw of the ball screw 2. The screw of the ball screw 2 is parallel to the ball spline guide shaft 3. The nut of the ball screw 2 drives the ball spline 11 to slide up and down along the ball spline guide shaft 3 via a connecting plate 4. In use, the motor 9 is connected to the synchronous wheels 5 at both ends of the lower baffle 10 via the drive wheel 91 and a belt drive. When the synchronous wheels 5 rotate, they drive the ball screw 2. When the ball screw 2 rotates, the threads on its surface drive the connecting plate 4 to rise and fall, thereby driving the ball spline 11 to slide up and down along the ball spline guide shaft 3.

[0016] An idler wheel 8 is added between the driving wheel 91 and the synchronizing wheel 5 in this utility model.

[0017] The connecting block 12 of this utility model is connected to the mounting block 6 and the ball spline 11 at both ends by a rotating shaft. A bushing can also be fitted on the rotating shaft. When the vacuum chamber is in a vacuum state and the door 1 is adsorbed at the front opening of the vacuum chamber, the connecting block 12 can ensure that the door 1 fits the vacuum chamber and accommodates a small amount of deformation.

[0018] The door body 1 of this utility model has slots on the top and bottom respectively. A handwheel 7 is installed at the opening of the vacuum cavity corresponding to the slot. The handwheel 7 can fit the door body 1 into the front opening of the vacuum cavity.

[0019] This utility model controls the lifting and lowering of the door body 1 through the ball screw 2, and increases the stability of the door body 1 through the ball spline guide shaft 3, connecting plate 4, synchronous wheel 5 and mounting block 6. It solves the problem of insufficient sealing, stability and reliability of heavy-duty chamber doors in vacuum coating equipment. The structure is compact, stable and reliable.

[0020] The connecting block 12 of this utility model is movably connected to the mounting block 6 through a rotating shaft and a bushing. The mounting block 6 is fixedly installed on the door body 1 by screws. With the help of the multi-segment movable structure of the ball spline 11, the connecting block 12 and the mounting block 6, the door body 1 can better fit the vacuum cavity window, further reducing the impact of the door body 1 on the ball screw 2 and the ball spline guide shaft 3 when the door body 1 is closed.

Claims

1. A stable vertical lifting door, characterized in that, It includes two symmetrically arranged ball spline guide shafts (3). The upper end of the ball spline guide shaft (3) is installed at the opening of the vacuum chamber through a bracket, and the lower end of the ball spline guide shaft (3) is fixedly installed with a lower baffle (10). The two sides of the door body (1) are movably installed on the ball spline guide shaft (3) through connecting blocks (12) and ball splines (11).

2. A stable vertical lifting door according to claim 1, characterized in that, The motor (9) is mounted on the lower center of the lower baffle (10) via a bracket. The drive wheel (91) of the motor (9) is connected to the synchronous pulleys (5) at both ends of the lower baffle (10) via a belt drive. The synchronous pulleys (5) are connected to the lower end of the screw of the ball screw (2). The screw of the ball screw (2) is parallel to the ball spline guide shaft (3). The nut of the ball screw (2) drives the ball spline (11) to slide up and down along the ball spline guide shaft (3) via the connecting plate (4).

3. A stable vertical lifting door according to claim 2, characterized in that, An idler wheel (8) is added between the driving wheel (91) and the synchronizing wheel (5).

4. A stable vertical lifting door according to claim 1, characterized in that, The two ends of the connecting block (12) are connected to the mounting block (6) and the ball spline (11) respectively through the rotating shaft and the bushing. The mounting block (6) is fixedly installed on the door body (1) by screws.

5. A stable vertical lifting door according to claim 1, characterized in that, The door body (1) has slots at the top and bottom respectively, and a handwheel (7) is installed at the slot corresponding to the opening of the vacuum cavity.

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