WO2021048591A1

WO2021048591A1 - Self-weighted diaphragm clamping mechanism of coating machine

Info

Publication number: WO2021048591A1
Application number: PCT/IB2019/057560
Authority: WO
Inventors: 邓愚
Original assignee: 华大机械有限公司
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2021-03-18

Abstract

A self-weighted diaphragm clamping mechanism of a coating machine, the mechanism comprising a workbench that is at least composed of a diaphragm upper pressing plate (2), a diaphragm carrying plate (3), a stopping plate (4) and a base (5), which are mounted within a sealed chamber (1). The diaphragm upper pressing plate (2) may slide along the moving direction of the diaphragm carrier plate (3). When the workbench is closed, the diaphragm carrier plate (3) is covered by a diaphragm, the diaphragm carrier plate (3) moves toward the diaphragm upper pressing plate (2) and pushes the diaphragm upper pressing plate (2), and the diaphragm upper pressing plate (2) clamps the diaphragm between the diaphragm upper pressing plate (2) and the diaphragm carrier plate (3) by relying on gravity. The stopping plate (4) is sealingly attached to the diaphragm carrier plate (3), the diaphragm carrier plate (3) is sealingly attached to the base (5), and a sealed space is formed between the stopping plate (4), the diaphragm carrier plate (3) and the base (5). The weight of the diaphragm upper pressing plate reaches from a hundred kilograms to hundreds of kilograms, and the diaphragm upper pressing plate is naturally pressed downward under the action of gravity such that the diaphragm upper pressing plate abuts against the diaphragm carrier plate and tightly clamps a diaphragm therebetween, thereby preventing same from loosening and keeping same tensioned.

Description

Self-weight diaphragm clamping mechanism of cladding machine

The invention relates to a mechanism for clamping a film in a worktable used for vacuum coating forming of a workpiece on a coating machine.

Differential pressure coating is widely used in various industries that require coating treatment, such as mobile phones, computers, automobiles, furniture, etc., differential pressure coating is to form a pressure difference between the diaphragm and the inside and outside of the workpiece to absorb the diaphragm to A film is formed on the surface of the workpiece. In the process of film coating, it is necessary to tension the film on the film carrier and then clamp the film by the upper pressure plate of the film to ensure the flatness of the film and prevent the formation of wrinkles after the film is covered. In the past, it was necessary to install hydraulic cylinders or air cylinders on the diaphragm upper pressure plate, through the hydraulic cylinder or air cylinder to make the diaphragm upper pressure plate generate enough clamping force to the diaphragm carrier, which can ensure that the diaphragm can be tightened on the diaphragm carrier At the same time, it is also ensured that a sufficient seal can be achieved between the upper pressing plate of the diaphragm and the diaphragm carrier plate, so that a sealed space is formed between the stop plate, the diaphragm carrier plate and the base. However, corresponding hydraulic cylinders or air cylinders need to be installed in the equipment, and the hydraulic cylinders or air cylinders need to be controlled, which increases the overall manufacturing cost and makes the operation more cumbersome.

In view of the above-mentioned shortcomings of the prior art, the present invention provides a self-weight diaphragm clamping mechanism for a laminating machine, which clamps the diaphragm by the weight of the pressure plate on the diaphragm and the diaphragm carrier plate, which can simplify the entire clamping. The structure and operation are simpler. .

The self-weight diaphragm clamping mechanism of the drape machine includes a working table composed of at least a diaphragm upper pressure plate, a diaphragm carrier plate, a stop plate and a base installed in a sealed cabin; the diaphragm upper pressure plate can carry along the diaphragm The moving direction of the plate slides; when the workbench is closed, the diaphragm is covered on the diaphragm carrier, the diaphragm carrier moves to the diaphragm upper pressure plate and pushes the diaphragm upper pressure plate, the diaphragm upper pressure plate clamps the diaphragm by gravity Between the pressure plate on the diaphragm and the diaphragm carrier; the stop plate is sealed and bonded to the diaphragm carrier, the diaphragm carrier is sealed and bonded to the base, and a sealed space is formed between the stop plate, the diaphragm carrier and the base.

Wherein, the upper pressure plate of the diaphragm is installed in the sealed cabin through a sliding guide rod, and a guide rod seat for installing the sliding guide rod is correspondingly provided in the sealed cabin.

Wherein, a support plate for supporting the upper pressure plate of the diaphragm is arranged under the sliding guide rod.

Wherein, the upper pressing plate of the diaphragm is composed of a plurality of sub-plate frames, and the adjacent sub-plate frames are connected and fixed end-to-end by connecting blocks according to the contour of the diaphragm.

Wherein, the connecting part of the sub-board frame is provided with a groove for inserting the connecting block.

Wherein, the diaphragm carrier is connected to the lifting driving device I through a support rod I, and the support rod I is movably installed on the workbench through the base.

Wherein, the supporting rods I are divided into multiple groups, and each group of supporting rods I is connected to a connecting plate, and the connecting plate is connected to a group of lifting driving devices 1.

Wherein, the base is connected with the lifting driving device II.

Wherein, the stop plate is connected to the lifting drive device III through a support rod II, and the support rod II is movably installed on the workbench through the base.

Wherein, the supporting rods II are divided into multiple groups, and each group of supporting rods II is connected to a connecting plate, and the connecting plate is connected to a group of lifting driving devices III.

The pressure plate on the diaphragm is movably installed in the sealed chamber, and is naturally pressed down under the action of gravity. For a large drape machine, its weight can reach hundreds to hundreds of kilograms. When the workbench is closed, it is covered with a film. The diaphragm carrier plate of the film is moved upward and the diaphragm upper pressure plate is lifted. The diaphragm upper pressure plate abuts against the diaphragm carrier plate and clamps the diaphragm tightly to prevent it from loosening and maintain tension. Some use hydraulic cylinders or air cylinders for clamping operations, which may simplify the overall mechanical structure and control procedures.

figure 1

Is a perspective view of the present invention;

figure 2

It is a partial split diagram of Figure 1;

image 3

It is a three-dimensional view of the pressure plate on the diaphragm.

In the figure, 1. Airtight compartment, 2. Diaphragm upper pressure plate, 3. Diaphragm carrier plate, 4. Stop plate, 5. Base, 6. Sliding guide rod, 7. Guide rod seat, 8. Support plate, 9. Sub-board frame, 10. Connecting block, 11. Support rod I, 12. Lifting drive device I, 13. Connecting plate, 14. Lifting drive device II, 15. Supporting rod II, 16. Lifting drive device III.

Example

The present utility model will be further described below in conjunction with the description of the drawings and specific implementations.

As shown in Figures 1 to 3, the self-weight diaphragm clamping mechanism of the laminating machine includes at least a diaphragm upper pressure plate 2, a diaphragm carrier plate 3, a stop plate 4 and a base 5 installed in the sealed cabin 1. Workbench; the diaphragm upper pressing plate 2 can slide along the moving direction of the diaphragm carrier 3; when the workbench is closed, the diaphragm is covered on the diaphragm carrier 3, and the diaphragm carrier 3 moves to the upper diaphragm 2 And push the diaphragm upper pressure plate 2, the diaphragm upper pressure plate 2 clamps the diaphragm between the diaphragm upper pressure plate 2 and the diaphragm carrier plate 3 by gravity; the stop plate 4 is sealed and attached to the diaphragm carrier plate 3, and the diaphragm The film carrier 3 and the base 5 are sealed and attached, and a sealed space is formed between the stop plate 4, the diaphragm carrier 3 and the base 5. The diaphragm upper pressing plate 2 is movably installed in the sealed chamber, and is naturally pressed down under the action of gravity. For a large drape machine, its weight can reach hundreds to hundreds of kilograms. When the workbench is closed, it is covered with The diaphragm carrier plate 3 of the diaphragm moves upward and lifts the upper diaphragm platen 2 up, the diaphragm upper platen 2 abuts against the diaphragm carrier plate 3 and clamps the diaphragm tightly in it to prevent it from loosening and keep it stretched. Compared with the existing clamping operation using hydraulic cylinders or air cylinders, it is possible to simplify the overall mechanical structure and control steps.

In order to facilitate the installation of the pressure plate 2 on the diaphragm and East China, the pressure plate 2 on the diaphragm is installed in the sealed cabin 1 through a sliding guide rod 6, and the sealed cabin 1 is provided with a guide rod for installing the sliding guide rod 6 accordingly. The seat 7 and the guide rod seat 7 are fixed in the sealed cabin 1. The user can appropriately set a corresponding number of guide rod seats 7 and sliding guide rods 6 according to the size and weight of the diaphragm upper pressure plate 2 to support the diaphragm upper pressure plate 2. The sliding guide rod 6 is fixedly connected with the guide rod seat 7, and the upper pressure plate 2 of the diaphragm slides up and down along the sliding guide rod 6.

A support plate 8 for supporting the upper pressure plate 2 of the diaphragm is provided under the sliding guide rod 6, and the upper pressure plate 2 of the diaphragm is provided with a perforation at the sliding guide rod 6, and the sliding guide rod 6 passes through the perforation, and the support plate 8 is provided At the bottom surface of the pressing plate 2 on the diaphragm, the lower end of the sliding guide rod 6 is fixedly connected with the supporting plate 8. The number of the corresponding pallets 8 is also appropriately configured according to the size and weight of the pressing plate 2 on the diaphragm.

For a large drape machine, since the overall area of the diaphragm is relatively large, a corresponding large-area diaphragm carrier 3 and a diaphragm upper pressure plate 2 are also required for adaptation. For the large-area diaphragm carrier plate 3 and the diaphragm upper pressure plate 2, the integrated design cost will be very high. For this reason, a separate design needs to be considered. The corresponding diaphragm upper pressure plate 2 is composed of multiple sub-plate frames 9 , The adjacent sub-frames 9 are connected and fixed by connecting blocks 10 according to the contour of the diaphragm. Similarly, the diaphragm carrier 3 is also formed by connecting and fixing a plurality of sub-carriers end to end through the connecting block 10.

In order to maintain the reliability of the above connection, to ensure the overall structural strength; at the same time, it is necessary to maintain the flatness of the connection part to ensure the sealing performance of the contact surface of the diaphragm upper plate 2 and the diaphragm carrier plate 3. The connecting part of the sub-plate frame 9 is provided with a groove for inserting the connecting block 10, and the connecting part of the sub-carrier of the diaphragm carrier 3 is also provided with a groove for inserting the connecting block 10.

Specifically, the workbench closing process is as follows:

First, the film is evenly covered on the upper surface of the film carrier 3. The diaphragm carrier 3 is connected to the lifting drive device I12 through a support rod I11, the support rod I11 is movably installed on the workbench through the base 5, and the lifting drive device I12 can be a hydraulic cylinder or an air cylinder, etc., through the support rod I11 moves the diaphragm carrier plate 3 upwards and contacts with the diaphragm upper pressure plate 2 and pushes the diaphragm upper pressure plate 2 to move upward along the sliding guide 6. The contact surface of the diaphragm carrier 3 and the diaphragm upper plate 2 is provided with a sealing ring to ensure that the two contact surfaces have a good sealing performance. At the same time, the diaphragm upper pressure plate 2 clamps the diaphragm on the diaphragm by gravity. 2 and the diaphragm carrier 3.

The stop plate 4 is mounted on the base 5 so as to be liftable. Then, the base 5 is first lifted to the diaphragm carrier 3 through the lifting driving device II14, and the upper surface of the base 5 contacts the bottom surface of the diaphragm 3 and is sealed, and a sealing ring is also provided between the two to ensure the sealing. In this way, a sealed space is formed between the stop plate 4, the diaphragm carrier 3 and the base 5.

Then, the above-mentioned sealed space and the sealed chamber 1 are evacuated by a vacuum device, and at the same time, an infrared heating lamp is used to heat the diaphragm to soften it. Furthermore, the stop plate 4 is raised. The stop plate 4 is connected to the lifting drive device III16 through a support rod II15. Similarly, the drive device III also uses a hydraulic cylinder or air cylinder. The support rod II15 is movably installed through the base 5 to work. On stage.

Finally, the sealed cabin 1 is filled with high-pressure gas through the high-pressure device, but the above-mentioned sealed space is still kept in a vacuum state, so that a high pressure difference between the sealed cabin 1 and the sealed space is maintained, and the diaphragm is covered to The surface of the workpiece on the board 4 is stopped, and the laminating work is completed.

Due to the large coating area of the large-scale coating machine, the corresponding diaphragm carrier 3 has a larger area. In order to ensure that sufficient driving force can be provided, and at the same time, it can be ensured that the diaphragm carrier 3 will not be greatly deformed. Therefore, the supporting rods I11 are divided into multiple groups, and each group of supporting rods I11 is connected to a connecting plate 13, and the connecting plate 13 is connected to a group of lifting driving devices I12. Similarly, the stop plate 4 can also be divided into multiple groups. Each group of the stop plate 4 can correspond to a group of coated workpieces, and the size of each coated workpiece may be different. Through the above grouping, different workpieces can be operated. Moreover, each group of stopping plates 4 can be raised to different heights according to actual needs to meet the use needs of the film-coated workpieces, and each group of stopping plates 4 is connected with the corresponding lifting drive device III16.

Claims

The self-weight diaphragm clamping mechanism of the drape machine is characterized in that it comprises at least a diaphragm upper pressure plate (2), a diaphragm carrier plate (3), a stop plate (4) and a base installed in the sealed cabin (1). (5) The workbench is composed; the diaphragm upper pressure plate (2) can slide along the moving direction of the diaphragm carrier (3); when the workbench is closed, the diaphragm is covered on the diaphragm carrier (3), and the diaphragm The film carrier plate (3) moves to the diaphragm upper pressure plate (2) and pushes the diaphragm upper pressure plate (2), the diaphragm upper pressure plate (2) clamps the diaphragm on the diaphragm by gravity, the pressure plate (2) and the diaphragm Between the film carrier plates (3); the stop plate (4) and the diaphragm carrier plate (3) are sealed and bonded, the diaphragm carrier plate (3) and the base (5) are sealed and bonded, the stop plate (4), the diaphragm A sealed space is formed between the carrier board (3) and the base (5).
The self-weight diaphragm clamping mechanism of the laminating machine according to claim 1, characterized in that: the diaphragm upper pressure plate (2) is installed in the sealed cabin (1) through a sliding guide rod (6), and the sealing Correspondingly, a guide rod seat (7) for installing the sliding guide rod (6) is provided in the cabin (1).
The self-weight diaphragm clamping mechanism of the laminating machine according to claim 1, characterized in that: a support plate (8) for supporting the upper pressure plate (2) of the diaphragm is provided under the sliding guide rod (6).
The self-weight diaphragm clamping mechanism of the laminating machine according to claim 1, characterized in that: the diaphragm upper pressing plate (2) is composed of a plurality of sub-plate frames (9), and adjacent sub-plate frames (9) According to the contour of the diaphragm, the end and end are connected and fixed by the connecting block (10).
The self-weight diaphragm clamping mechanism of the laminating machine according to claim 4, characterized in that: the connecting part of the sub-plate frame (9) is provided with a groove for inserting the connecting block (10).
The self-weight diaphragm clamping mechanism of the laminating machine according to claim 1, characterized in that: the diaphragm carrier (3) is connected to the lifting driving device I (12) through the supporting rod I (11), and the The support rod I (11) passes through the base (5) and is movably installed on the workbench.
The self-weight diaphragm clamping mechanism of the laminating machine according to claim 6, characterized in that: the supporting rods I (11) are divided into multiple groups, and each group of supporting rods I (11) is connected to a connecting plate (13). ), the connecting plate (13) is connected with a set of lifting drive device I (12).
The self-weight diaphragm clamping mechanism of the laminating machine according to claim 1, characterized in that: the base (5) is connected with the lifting driving device II (14).
The self-weight diaphragm clamping mechanism of the laminating machine according to claim 1, characterized in that: the stop plate (4) is connected to the lifting drive device III (16) through a support rod II (15), and the support rod II (15) is movably installed on the workbench through the base (5).
The self-weight diaphragm clamping mechanism of the laminating machine according to claim 9, characterized in that: the supporting rods II (15) are divided into multiple groups, and each group of supporting rods II (15) is connected to a connecting plate (13). ), the connecting plate (13) is connected with a set of lifting drive device III (16).