Automatic compressed air on-off device

Abstract

The invention relates to an automatic compressed air on-off device. The device comprises a compressed air blocking unit and a compressed air circulation unit, the compressed air blocking unit comprises a first locking nut, a first fastening screw, an air outlet connector and a first sealing cover, a compressed air outlet is formed in the compressed air blocking unit, and the first sealing cover is fixed through the first fastening screw. The first locking nut is arranged outside the air outlet connector and tightly presses the first sealing cover, the air outlet connector vertically penetrates through the first sealing cover, and the lower portion of the air outlet connector is communicated with the compressed air circulation unit. The compressed air circulation unit comprises a second locking nut, a second fastening screw, a second sealing cover, a piston, a cylinder body and a compression spring, a compressed air inlet is formed in the compressed air circulation unit, the second sealing cover, the cylinder body and the piston are fastened through the second locking nut, and the compression spring is arranged in the cylinder body. The mechanism is not affected by the number of air sources, is small and exquisite in structure, saves space, is low in manufacturing cost, achieves the on-off of compressed air, and can be widely used on various moving trolley type components needing automatic air sources.

Description

Technical Field

[0001] The invention relates to the technical field of automatic air source for stamping equipment, and in particular to an automatic on-off device for compressed air. Background Art

[0002] The existing stamping equipment has an automated air source. It is necessary to add a rectangular hole on the base of the equipment to install the air source box. As the number of automated air sources increases, the size of the holes on the base becomes larger, and the increasing number of holes seriously affects the rigidity and stress state of the base. There is a risk of cracking of the base after long-term use. At the same time, each automated air source outlet has a seal, which has poor reliability and a high maintenance failure rate, greatly increasing the maintenance cost. Summary of the invention

[0003] The purpose of the present invention is to provide a compressed air automatic on-off device to solve the problems in the prior art.

[0004] The technical solution of the present invention is: a compressed air automatic on-off device, the device comprising a compressed air blocking unit and a compressed air circulation unit, the compressed air blocking unit is arranged above the compressed air circulation unit; The compressed air blocking unit comprises a locking nut, a fastening screw, an air outlet joint and a sealing cover. The compressed air blocking unit is provided with a compressed air outlet. The sealing cover is fixed by a fastening screw. The locking nut is arranged outside the air outlet joint and presses the sealing cover. The air outlet joint vertically passes through the sealing cover. The lower part of the air outlet joint is connected to the compressed air circulation unit. The compressed air circulation unit comprises two locking nuts, two fastening screws, two sealing covers, a piston, a cylinder body and a compression spring. The compressed air circulation unit is provided with a compressed air inlet. The two locking nuts fasten the two sealing covers to the cylinder body and the piston. The compression spring is arranged in the cylinder body.

[0005] Furthermore, the compressed air blocking unit is fixedly connected to the upper template of the stamping equipment by fastening screw one, and the compressed air circulation unit is fixedly connected to the lower template of the stamping equipment by fastening screw two.

[0006] The beneficial effects of the present invention are: it is not affected by the number of air sources, has a compact structure, saves space, has a low manufacturing cost, and realizes the on and off of compressed air. The mechanism can be widely used on various mobile trolley components that require an automated air source. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the structure of the compressed air closed state of the present invention.

[0008] Figure 2It is a schematic diagram of the structure of the compressed air in the open state of the present invention.

[0009] In the figure, 1 is locking nut 1, 2 is fastening screw 1, 3 is air outlet joint, 4 is sealing cover 1, 5 is locking nut 2, 6 is fastening screw 2, 7 is sealing cover 2, 8 is piston, 9 is cylinder body, 10 is compression spring, and 11 is compressed air. DETAILED DESCRIPTION

[0010] A compressed air automatic on-off device, the device comprising a compressed air blocking unit and a compressed air circulation unit, the compressed air blocking unit being arranged above the compressed air circulation unit; The compressed air blocking unit comprises a locking nut 1, a fastening screw 2, an air outlet joint 3 and a sealing cover 4. The compressed air blocking unit is provided with a compressed air outlet. The sealing cover 4 is fixed by the fastening screw 2. The locking nut 1 is arranged outside the air outlet joint 3 and presses the sealing cover 4. The air outlet joint 3 vertically passes through the sealing cover 4. The lower part of the air outlet joint 3 is connected to the compressed air circulation unit. The compressed air circulation unit includes a locking nut 5, a fastening screw 6, a sealing cover 7, a piston 8, a cylinder body 9 and a compression spring 10. The compressed air circulation unit is provided with a compressed air inlet. The locking nut 5 fastens the sealing cover 7 to the cylinder body 9 and the piston 8. The compression spring 10 is arranged in the cylinder body 9.

[0011] The compressed air blocking unit is fixedly connected to the upper template of the stamping equipment by fastening screws 1 (2), and the compressed air circulation unit is fixedly connected to the lower template of the stamping equipment by fastening screws 2 (6).

[0012] The working principle of the present invention is as follows: the device is divided into a compressed air blocking unit arranged at the top and a compressed air circulation unit arranged at the bottom, and the compressed air blocking unit and the compressed air circulation unit are respectively installed on different parts of the stamping equipment; When the upper mold plate of the stamping equipment is lifted, the piston 8 of the compressed air circulation unit is lifted up by the combined action of the compressed air 11 and the compression spring 10, and the lifted piston 8 forms a seal with the sealing cover 2 7, thereby blocking the transmission of the compressed air 11 upwards; When the upper template of the stamping equipment falls, under the combined action of gravity and the compression spring 10, the sealing cover 1 4 forms a seal, and the sealing cover 2 7 opens to enable the circulation of compressed air 11.

[0013] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0014] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0015] The standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can all be customized according to the description and the drawings.

[0016] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A compressed air automatic on-off device, characterized in that: The device comprises a compressed air blocking unit and a compressed air circulation unit, wherein the compressed air blocking unit is arranged above the compressed air circulation unit; The compressed air blocking unit comprises a locking nut (1), a fastening screw (2), an air outlet joint (3) and a sealing cover (4); the compressed air blocking unit is provided with a compressed air outlet; the sealing cover (4) is fixed by a fastening screw (2); the locking nut (1) is arranged outside the air outlet joint (3) and presses the sealing cover (4); the air outlet joint (3) vertically passes through the sealing cover (4); and the lower part of the air outlet joint (3) is connected to the compressed air circulation unit; The compressed air circulation unit comprises a second locking nut (5), a second fastening screw (6), a second sealing cover (7), a piston (8), a cylinder body (9) and a compression spring (10). The compressed air circulation unit is provided with a compressed air inlet. The second locking nut (5) fastens the second sealing cover (7) to the cylinder body (9) and the piston (8). The compression spring (10) is arranged in the cylinder body (9).

2. A compressed air automatic on-off device according to claim 1, characterized in that: The compressed air blocking unit is fixedly connected to the upper mold plate of the stamping equipment by means of a first fastening screw (2), and the compressed air circulation unit is fixedly connected to the lower mold plate of the stamping equipment by means of a second fastening screw (6).

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