CN211054512U

CN211054512U - Mechanical control mechanism of time-delay nitrogen cylinder

Info

Publication number: CN211054512U
Application number: CN201921742817.0U
Authority: CN
Inventors: 符坤; 李健; 刘军; 刘龙芬
Original assignee: Chengdu Push Automobile Mold Co ltd
Current assignee: Chengdu Push Automobile Mold Co ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-07-21
Anticipated expiration: 2029-10-17

Abstract

The utility model discloses a mechanical control mechanism of time delay nitrogen jar relates to time delay nitrogen jar technical field, and the technical problem of solution provides a mechanical control mechanism for time delay nitrogen jar that uses with the press cooperation. The utility model adopts the technical proposal that: the mechanical control mechanism of the time-delay nitrogen cylinder comprises an upper mounting seat and a lower mounting seat, wherein the upper mounting seat is used for synchronously moving up and down with an upper sliding block of a press, the lower mounting seat is arranged opposite to the upper mounting seat, and the upper mounting seat is fixedly provided with a zero-resilience driving block and a time-delay driving block; the lower mounting seat is fixedly provided with a guide rail, the guide rail is provided with a guide block, the front side of the guide block is provided with a zero-resilience mechanical valve mounting position and a time-delay mechanical valve mounting position, the guide block is provided with a resetting device, and the guide block and the lower mounting seat are provided with a clamping groove and a limiting clamping block which are matched. The mechanical control mechanism of the time-delay nitrogen cylinder is matched with the motion process of the press, the mechanical control of the zero-rebound mechanical valve and the time-delay mechanical valve is realized, the manufacture is easy, and the time-delay nitrogen cylinder has the advantages of low cost and short period compared with an electromagnetic valve.

Description

Mechanical control mechanism of time-delay nitrogen cylinder

Technical Field

The utility model relates to a time delay nitrogen jar technical field specifically is a mechanical control mechanism of time delay nitrogen jar.

Background

The time-delay nitrogen cylinder is used more in the field of molds at present, and is realized by utilizing the time-delay effect of the time-delay nitrogen cylinder in order to control the fluctuation time of a lower mold pressing block. In the automobile outer cover mold, a delayed nitrogen cylinder has been widely used. At present, the zero rebound of the time delay nitrogen cylinder is controlled by an electromagnetic valve. Because many debugging press electrical control systems are not perfect, the solenoid valve sometimes can't use in the mould debugging, and the solenoid valve is expensive simultaneously, uneconomic, and application scope is narrow.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a mechanical control mechanism for with time delay nitrogen jar that press cooperation was used is provided.

The utility model adopts the technical proposal that: the mechanical control mechanism of the time-delay nitrogen cylinder comprises an upper mounting seat and a lower mounting seat, wherein the upper mounting seat is used for synchronously moving up and down with an upper sliding block of a press, the lower mounting seat is arranged opposite to the upper mounting seat and fixedly mounted, a zero-resilience driving block and a time-delay driving block are fixedly mounted on the upper mounting seat, and the lower ends of the zero-resilience driving block and the time-delay driving block point to the lower mounting seat;

the lower mounting seat is fixedly provided with a guide rail, a guide block is mounted on the guide rail and can reciprocate back and forth along the guide rail, the front side of the guide block is provided with a zero-rebound mechanical valve mounting position and a time-delay mechanical valve mounting position, a resetting device is arranged on the guide block, a downlink path at the lower end of the time-delay driving block passes through the time-delay mechanical valve mounting position, and the zero-rebound driving block can downwards push the guide block to move forwards to enter the zero-rebound mechanical valve mounting position; the lower mounting seat is provided with a limiting groove at the descending limit position of the zero-resilience driving block, a limiting fixture block is arranged in the limiting groove through an elastic piece, a clamping groove matched with the limiting fixture block is formed in the contact surface of the guide block and the lower mounting seat, and the limiting fixture block can automatically pop out and be clamped into the clamping groove when the guide block moves forwards to the limit position.

Further, the method comprises the following steps: the front side of the lower end of the zero-resilience driving block is provided with a bulge, the guide block is further provided with a roller, the roller is located on a descending path of the zero-resilience driving block, and the zero-resilience driving block can push the roller to move forwards downwards to enable the front side of the guide block to enter a zero-resilience mechanical valve installation position.

Specifically, the method comprises the following steps: the limiting clamping block is arranged in the limiting groove through a spring.

Specifically, the method comprises the following steps: the bulge on the front side of the lower end of the zero-resilience driving block is semicircular.

Specifically, the method comprises the following steps: the reset device is a reset spring.

More specifically: the reset spring is arranged at the rear end of the guide block.

The utility model has the advantages that: the mechanical control mechanism of the time-delay nitrogen cylinder can be matched with the motion process of the press, so that the mechanical control on the zero-rebound mechanical valve arranged at the mounting position of the zero-rebound mechanical valve and the mechanical control on the time-delay mechanical valve arranged at the mounting position of the time-delay mechanical valve are realized, the requirements on the functions of the press are reduced, and the debugging is convenient; and the mechanical control mechanism of the time-delay nitrogen cylinder has simple structure, is easy to process and manufacture, and has the advantages of low cost and short period compared with the electromagnetic valve.

Set up the gyro wheel on the guide block, the zero resilience drive block of being convenient for descends and to promote the gyro wheel antedisplacement and make, makes the front side of guide block easier, also gets into zero resilience mechanical valve installation position more steadily, and then moves the zero resilience mechanical valve that sets up in zero resilience mechanical valve installation position.

Drawings

Fig. 1 is a schematic diagram of the time-delay nitrogen cylinder of the present invention when the upper mounting seat of the mechanical control mechanism starts to descend.

Fig. 2 is a schematic view of the upper mounting seat of the mechanical control mechanism of the delayed nitrogen cylinder of the present invention moving to the bottom.

Parts, positions and numbers in the drawings: the device comprises an upper mounting seat 1, a lower mounting seat 2, a zero-resilience driving block 3, a delay driving block 4, a guide rail 5, a guide block 6, a reset device 7, a limiting clamping block 8 and a roller 9; zero-rebound mechanical valve 10 and time-delay mechanical valve 11.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1 and 2, the mechanical control mechanism of the time-delay nitrogen cylinder of the present invention comprises an upper mounting seat 1 for moving up and down synchronously with the upper sliding block of the press, and a lower mounting seat 2 which is arranged relatively to the upper mounting seat 1 and is fixedly mounted, wherein the upper mounting seat 1 belongs to an upper die part, and the lower mounting seat 2 is a lower die part. Go up mount pad 1 fixed connection zero resilience drive block 3 and time delay drive block 4, the lower extreme of zero resilience drive block 3 and time delay drive block 4 all points to mount pad 2 down. In fig. 1 and 2, the lower ends of the zero rebound drive block 3 and the delay drive block 4 are both directed downward toward the lower mount 2.

The lower mounting base 2 is fixedly provided with a guide rail 5, the guide rail 5 is provided with a guide block 6, the guide rail 5 plays a role in guiding and fixing the movement of the guide block 6, and the guide block 6 can reciprocate back and forth along the guide rail 5, namely, in the figures 1 and 2, the guide block 6 moves left and right along the guide rail 5. The movement of the guide block 6 to the right in fig. 1 and 2 means that the guide block 6 moves forward and vice versa. The front side of guide block 6 is zero resilience mechanical valve installation position and time delay mechanical valve installation position, and zero resilience mechanical valve installation position is used for installing zero resilience mechanical valve 10, and time delay mechanical valve installation position is used for installing time delay mechanical valve 11, and zero resilience mechanical valve 10 and time delay mechanical valve 11 can direct fixed mounting in mount pad 2 down. In fig. 1 and 2, the zero-rebound mechanical valve 10 and the time-lapse mechanical valve 11 are located at a zero-rebound mechanical valve installation position and a time-lapse mechanical valve installation position, respectively.

The guide block 6 is provided with a resetting device 7, and the resetting device 7 is used for enabling the guide block 6 to automatically return after moving forwards. For example, the reset device 7 is a reset spring, the reset spring is arranged at the rear end of the guide block 6, one end of the reset spring is matched with the guide block 6, and the other end of the reset spring is matched with the lower mounting seat 2 or the guide rail 5.

The descending path at the lower end of the delay driving block 4 passes through the installation position of the delay mechanical valve. The delay driving block 4 moves downwards, and the lower end of the delay driving block 4 contacts and compresses the delay mechanical valve 11. The zero-rebound driving block 3 descends to push the guide block 6 to move forwards to enter a zero-rebound mechanical valve mounting position; for example, the guide block 6 is provided with a slope on the descending path of the zero rebound driving block 3, the upper mount 1 descends, and the lower end of the zero rebound driving block 3 presses the slope, so that the guide block 6 moves forward. Alternatively, as shown in fig. 1 and 2, the front side of the lower end of the zero rebound drive block 3 is provided with a projection which is semicircular or arcuate in section in the moving direction of the guide block 6. Simultaneously, still set up gyro wheel 9 on the guide block 6, gyro wheel 9 can freely rotate, and the rear side of gyro wheel 9 is located the bellied route of descending of zero resilience drive block 3, and zero resilience drive block 3 descends, and the arch promotes the antedisplacement of gyro wheel 9 and makes the front side of guide block 6 advance and get into zero resilience mechanical valve installation position, and guide block 6 advances to compress zero resilience mechanical valve 10 promptly.

Lower mount pad 2 sets up the spacing groove in the descending limit department of zero resilience drive block 3, and spacing fixture block 8 is installed in the spacing inslot through the elastic component, and spacing fixture block 8 has the trend of popping out the spacing groove under the effect of elastic component, and for example the elastic component is the spring, specifically is the hinge spring. The contact surface of the guide block 6 and the lower mounting seat 2 is provided with a clamping groove matched with the limiting clamping block 8, and the limiting clamping block 8 can be automatically popped out and clamped into the clamping groove when the guide block 6 moves forwards to the limiting position. The limiting clamping block 8 is clamped into the clamping groove, the lower mounting seat 2 and the guide block 6 are locked relatively, and the guide block 6 maintains the state of compressing the zero-rebound mechanical valve 10. When zero resilience drive block 3 descends to extreme position, 3 lower extreme contacts of zero resilience drive block and oppresses spacing fixture block 8, and spacing fixture block 8 follows the draw-in groove roll-off, and guide block 6 moves back under resetting means 7 effect, and guide block 6 withdraws from zero resilience mechanical valve installation position, and guide block 6 retreats promptly and loosens zero resilience mechanical valve 10.

The working mode of the mechanical control mechanism of the time-delay nitrogen cylinder of the utility model can be divided into the following three stages.

The first stage is as follows: the zero-rebound driving block 3 is in downward contact with the roller 9 along with the upper sliding block of the press, the guide block 6 is driven forwards by the bulge of the zero-rebound driving block 3 and compresses the zero-rebound mechanical valve 10, and the middle valve bank of the zero-rebound system is closed. Meanwhile, the time delay mechanical valve 11 is compressed by the lower end of the time delay driving block 4, and the time delay nitrogen cylinder valve group is opened, so that the time delay function is realized.

And a second stage: zero resilience drive block 3 continues down along with the press top shoe, guide block 6 is blocked by spacing fixture block 8, zero resilience mechanical valve 10 is in compression state all the time, zero resilience drive block 3 descends to when extreme position down, zero resilience drive block 3 pushes down spacing fixture block 8, guide block 6 rolls back under resetting means 7's effect, zero resilience mechanical valve 10 no longer compresses, the valves is opened in the middle of the zero resilience system, the inside residual gas of nitrogen spring is siphoned away, realize zero resilience.

And a third stage: the zero-rebound driving block 3 moves upwards along with the upper sliding block of the press, the guide block 6 drives the compression zero-rebound mechanical valve 10 forwards again, and the middle valve bank of the zero-rebound system is closed. Meanwhile, the time delay mechanical valve 11 is not compressed any more, and the time delay nitrogen cylinder valve group is closed.

Claims

1. Mechanical control mechanism of time delay nitrogen jar, its characterized in that: the device comprises an upper mounting seat (1) used for synchronously moving up and down with an upper sliding block of a press, and a lower mounting seat (2) which is arranged opposite to the upper mounting seat (1) and is fixedly mounted, wherein a zero-resilience driving block (3) and a delay driving block (4) are fixedly mounted on the upper mounting seat (1), and the lower ends of the zero-resilience driving block (3) and the delay driving block (4) point to the lower mounting seat (2);

a guide rail (5) is fixedly arranged on the lower mounting seat (2), a guide block (6) is mounted on the guide rail (5), the guide block (6) can reciprocate back and forth along the guide rail (5), the front side of the guide block (6) is provided with a zero-rebound mechanical valve mounting position and a delay mechanical valve mounting position, a resetting device (7) is arranged on the guide block (6), a descending path at the lower end of the delay driving block (4) passes through the delay mechanical valve mounting position, and the zero-rebound driving block (3) can downwards push the guide block (6) to move forwards to enter the zero-rebound mechanical valve mounting position; lower mount pad (2) set up the spacing groove in the limit department that zero kick-back drive block (3) is down, and spacing fixture block (8) are installed in the spacing inslot through the elastic component, and guide block (6) and the contact surface of lower mount pad (2) set up with the draw-in groove of spacing fixture block (8) adaptation, and spacing fixture block (8) can pop out automatically and the draw-in groove of card when guide block (6) move ahead to extreme position.

2. The mechanical control mechanism of a delayed nitrogen cylinder as claimed in claim 1, wherein: the front side of the lower end of the zero-resilience driving block (3) is provided with a bulge, the guide block (6) is further provided with a roller (9), the roller (9) is located on a descending path of the zero-resilience driving block (3), and the zero-resilience driving block (3) can push the roller (9) to move forwards to enable the front side of the guide block (6) to enter a zero-resilience mechanical valve mounting position.

3. The mechanical control mechanism of a delayed nitrogen cylinder as claimed in claim 1, wherein: the limiting clamping block (8) is arranged in the limiting groove through a spring.

4. The mechanical control mechanism of a delayed nitrogen cylinder as claimed in claim 1, wherein: the bulge on the front side of the lower end of the zero-resilience driving block (3) is semicircular.

5. The mechanical control mechanism of a time-delay nitrogen cylinder as claimed in any one of claims 1 to 4, characterized in that: the reset device (7) is a reset spring.

6. The mechanical control mechanism of a delayed nitrogen cylinder as set forth in claim 5, wherein: the return spring is arranged at the rear end of the guide block (6).