CN210637427U

CN210637427U - Complete locking system for time-delay nitrogen spring

Info

Publication number: CN210637427U
Application number: CN201921731347.8U
Authority: CN
Inventors: 李小兰
Original assignee: DONGGUAN XINYUE MOLD CO LTD
Current assignee: DONGGUAN XINYUE MOLD CO LTD
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-05-29
Anticipated expiration: 2029-10-16

Abstract

The utility model discloses a time delay nitrogen spring is with complete locking system, including time delay nitrogen spring, integral type valves and passive nitrogen spring, the integral type valves is including the last air chamber check valve, lower air chamber check valve and the cartridge valve of interconnect, nitrogen spring's last air chamber passes through the high-pressure line with last air chamber check valve and is connected, nitrogen spring's lower air chamber passes through the high-pressure line with lower air chamber check valve and is connected, passive nitrogen spring's last air chamber passes through the high-pressure line with the cartridge valve and is connected, time delay nitrogen spring all is connected with the cartridge valve and is equipped with mechanical pressure switch. Compared with the prior art, the utility model the advantage lie in: through the combination application of time delay nitrogen spring and passive nitrogen spring to utilize integral type valves control nitrogen gas flow direction, form locking system, the time delay nitrogen spring resilience problem when effectively having solved punch press mould return stroke is showing the quality and the intensity that have improved the punching press finished piece, makes punching press production efficiency promote by a wide margin.

Description

Complete locking system for time-delay nitrogen spring

Technical Field

The utility model relates to the technical field of mold, specifically indicate a time delay nitrogen gas is complete locking system for spring.

Background

In the mold industry, a large number of elastic elements are used, and a time delay nitrogen spring is a novel elastic component taking high-pressure nitrogen as a working medium, and the time delay nitrogen spring is taken as a part of a mold to participate in work and can conveniently realize pressure constancy and time delay action in a system. In production, the punching machine drives the die to move downwards, the die applies pressure to the delay nitrogen spring, nitrogen in the lower air chamber in the delay nitrogen spring enters the upper air chamber, but a small amount of nitrogen remains in the lower air chamber at the moment, and the small amount of residual nitrogen in the lower air chamber causes the rebound of the delay nitrogen spring.

At present, delay nitrogen spring has 1 mm's slight resilience in the use in the market, but can not have the resilience phenomenon in some special high-precision stamping workpiece production processes, and delay nitrogen spring must reach zero resilience, otherwise can damage the outward appearance of punching press, consequently need a system that eliminates delay nitrogen spring and kick-backs urgently.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to solve above-mentioned technical problem, a zero time delay nitrogen spring of kick-backing is with complete locking system is provided.

In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides a time delay nitrogen spring is with complete locking system, includes time delay nitrogen spring, integral type valves and passive nitrogen spring, the integral type valves includes interconnect's last air chamber check valve, lower air chamber check valve and cartridge valve, nitrogen spring's last air chamber and last air chamber check valve pass through the high-pressure line and are connected, nitrogen spring's lower air chamber and lower air chamber check valve pass through the high-pressure line and are connected, passive nitrogen spring's last air chamber and cartridge valve pass through the high-pressure line and are connected, time delay nitrogen spring all is connected with the cartridge valve and is equipped with mechanical pressure switch.

As the improvement, lie in air chamber check valve and cartridge valve junction and be equipped with bleed valve connecting thread mouth in the integral type valves for connect the bleed valve and carry out the gassing, lie in air chamber check valve and cartridge valve junction down and be equipped with inflation connector connecting thread mouth, be used for connecting the inflation valve and aerify, cartridge valve upper portion is equipped with barometer connecting thread mouth, is used for connecting the barometer, is convenient for monitor the interior gas pressure value in the integral type valves, the cartridge valve lower part is equipped with the silencer, is arranged in the noise that reduces in the integral type valves.

As an improvement, the mechanical pressure switch comprises a switch main body, wherein the upper part of the switch main body is provided with a roller and a gas reversing contact which are matched with each other, a die is pressed down to extrude the roller, the roller is pressed down to press the gas reversing contact to enable the switch main body to work, the lower part of the switch main body is provided with a switch silencer for reducing the noise of the mechanical pressure switch, and one side of the mechanical pressure switch is provided with an air inlet connected with an external air source.

As an improvement, high-pressure joints are arranged at the joints of the upper air chamber of the passive nitrogen spring and the cartridge valve, and the connection of the high-pressure pipes is safer and more reliable.

Compared with the prior art, the utility model the advantage lie in: through the combination application of time delay nitrogen spring and passive nitrogen spring to utilize integral type valves control nitrogen gas flow direction, form complete locking system, the time delay nitrogen spring resilience problem when effectively having solved punch press mould return stroke is showing the quality and the intensity that have improved the punching press finished piece, makes punching press production efficiency promote by a wide margin.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the integrated valve set of the present invention.

Fig. 3 is a schematic structural diagram of the mechanical pressure switch of the present invention.

As shown in the figure: 1. time delay nitrogen spring, 2, integral type valves, 2.1, go up the air chamber check valve, 2.2, lower air chamber check valve, 2.3, cartridge valve, 2.4, bleed valve connecting thread mouth, 2.5, aerify joint connecting thread mouth, 2.6, barometer connecting thread mouth, 2.7, silencer, 3, passive nitrogen spring, 4, mechanical pressure switch, 4.1, the switch main part, 4.2, the gyro wheel, 4.3, the gaseous switching-over contact, 4.4, the switch silencer, 4.5, the air inlet, 5, high pressure joint.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

With reference to the attached drawing 1, a complete locking system for a time-delay nitrogen spring comprises a time-delay nitrogen spring 1, an integrated valve group 2 and a passive nitrogen spring 3, wherein the integrated valve group 2 comprises an upper air chamber one-way valve 2.1, a lower air chamber one-way valve 2.2 and a cartridge valve 2.3 which are connected with each other, an upper air chamber of the nitrogen spring 1 is connected with the upper air chamber one-way valve 2.1 through a high-pressure pipe, a lower air chamber of the nitrogen spring 1 is connected with the lower air chamber one-way valve 2.2 through a high-pressure pipe, an upper air chamber of the passive nitrogen spring 3 is connected with the cartridge valve 2.3 through a high-pressure pipe, the time-delay nitrogen spring 1 and the cartridge valve 2.3 are both connected with a mechanical pressure switch 4 for controlling the exhaust of the time-delay nitrogen spring 1 and the cartridge valve 2.3, and the joint of the upper air chamber of the passive nitrogen spring 3 and the cartridge valve 2.3 is both provided with a high-pressure.

Combine the attached figure 2, lie in air chamber check valve 2.1 and cartridge valve 2.3 junction in the integral type valves 2 and be equipped with bleed valve connection screw thread mouth 2.4 for connect the bleed valve and bleed, lie in air chamber check valve 2.2 and cartridge valve 2.3 junction under in the integral type valves 2 and be equipped with inflation joint connection screw thread mouth 2.5 for connect the inflation valve and aerify, cartridge valve 2.3 upper portion is equipped with barometer connection screw thread mouth 2.6 for connect the barometer and monitor the atmospheric pressure value in the integral type valves 2, cartridge valve 2.3 lower part is equipped with silencer 2.7 to this working noise that reduces integral type valves 2.

With reference to fig. 3, the mechanical pressure switch 4 includes a switch main body 4.1, the upper portion of the switch main body 4.1 is provided with a roller 4.2 and a gas reversing contact 4.3 which are matched with each other, the roller 4.2 contacts with the slope of the descending die, the slope extrudes the roller 4.2 to move down when the die descends, the roller 4.2 presses the gas reversing contact 4.3 to make the switch main body 4.1 work, the lower portion of the switch main body 4.1 is provided with a switch silencer 4.4 for reducing the noise of the switch silencer 4.4, and one side of the mechanical pressure switch 4 is provided with an air inlet 4.5 connected with an external air source.

The utility model discloses a theory of operation: the punching machine drives the die to move downwards, the die generates pressure on the time delay nitrogen spring 1, a piston rod of the time delay nitrogen spring 1 is pressed down, nitrogen in a lower air chamber in the time delay nitrogen spring 1 enters an upper air chamber, a mechanical pressure switch 4 controls a cartridge valve 2.3, so that the nitrogen in the upper air chamber cannot return to the lower air chamber, and a small amount of residual nitrogen exists in the lower air chamber (the small amount of residual nitrogen in the lower air chamber is the reason for rebounding of the time delay nitrogen spring 1); meanwhile, the mold is pressed downwards to drive the passive nitrogen spring 3 to move downwards, when the mold moves to the bottom dead center, the mechanical pressure switch 4 is released, the cartridge valve 2.3 is opened from a closed state, and at the moment, residual nitrogen in the lower air chamber of the delayed nitrogen spring 1 is sucked into the upper air chamber of the passive nitrogen spring 3 through the high-pressure pipe, the lower air chamber one-way valve 2.2, the cartridge valve 2.3, the high-pressure joint 5 and the high-pressure pipe, so that the residual nitrogen in the lower air chamber of the delayed nitrogen spring 1 is eliminated, and the delayed nitrogen spring 1 achieves the effect of 0 rebound; when the mold needs to return, no gas in the lower gas chamber of the delay nitrogen spring 1 cannot return, and the mechanical pressure switch 4 is needed to control the cartridge valve 2.3, so that the gas in the upper gas chamber of the delay nitrogen spring 1 and the gas in the upper gas chamber of the passive nitrogen spring 3 return to the lower gas chamber of the delay nitrogen spring 1, and the mold can return.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a time delay nitrogen gas spring is with complete locking system, includes time delay nitrogen gas spring (1), integral type valves (2) and passive nitrogen gas spring (3), its characterized in that: integral type valves (2) are including interconnect's last air chamber check valve (2.1), lower air chamber check valve (2.2) and cartridge valve (2.3), the last air chamber and last air chamber check valve (2.1) of nitrogen spring (1) are through high-pressure tube connection, the lower air chamber and lower air chamber check valve (2.2) of nitrogen spring (1) are through high-pressure tube connection, the last air chamber and cartridge valve (2.3) of passive nitrogen spring (3) are through high-pressure tube connection, delay nitrogen spring (1) and cartridge valve (2.3) all are connected and are equipped with mechanical pressure switch (4).

2. The time delay nitrogen spring full lock system of claim 1, wherein: lie in air chamber check valve (2.1) and cartridge valve (2.3) junction in integral type valves (2) and be equipped with bleed valve connecting thread mouth (2.4), lie in air chamber check valve (2.2) and cartridge valve (2.3) junction down and be equipped with and aerify joint connecting thread mouth (2.5), cartridge valve (2.3) upper portion is equipped with barometer connecting thread mouth (2.6), cartridge valve (2.3) lower part is equipped with silencer (2.7).

3. The time delay nitrogen spring full lock system of claim 1, wherein: mechanical pressure switch (4) are including switch main part (4.1), switch main part (4.1) upper portion is equipped with gyro wheel (4.2) and gas switching-over contact (4.3) of mutually supporting, switch main part (4.1) lower part is equipped with switch silencer (4.4), mechanical pressure switch (4) one side is equipped with air inlet (4.5) of being connected with outside air supply.

4. The time delay nitrogen spring full lock system of claim 1, wherein: and high-pressure joints (5) are arranged at the joints of the upper air chamber of the passive nitrogen spring (3) and the cartridge valve (2.3).