SU1119857A1 - Press - Google Patents

Abstract

A PRESS containing a movable plate mounted on a frame and interconnected by columns and a housing with coaxially arranged forces cylinder and multiplier, forming rod and piston cavities in it, as well as a fixed plate and pneumatic drive fixed to the frame and connected to the piston of the cylinder. including a distribution valve connected to the said cavities with a turning mechanism for its spool, characterized in that. that, in order to increase productivity and improve operating conditions, it is equipped with a pressure reducing valve and a shut-off valve, and the valve spool turning mechanism is made in the form of a piston cylinder with a rail and latch of the gear sector, controlled stop and pneumatic distributors fixed on its body the toothed sector is fixed on the spool of the distributor crane, the controlled stop is placed on the bed, the piston cylinder is mounted with the possibility of its interaction with the rail and the latch respectively, with a toothed sector and controlled stop, a reducing valve and a shut-off valve are installed between the distribution valve I and the piston cavity of the multiplier, and the cavity of the piston cylinder and. control (The stop lug is connected via pneumatic valve with pneumatic actuator. S with si

Description

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IS The invention relates to mechanical engineering, namely to press structures. A press is known that contains a movable plate and a housing mounted on a frame and interconnected by columns with coaxially placed pistons of a power cylinder and a multiplier, forming rod and piston cavities in it, as well as a fixed plate and pneumatic actuator mounted on the frame and connected to the cylinder of a power cylinder, including a distribution valve connected to the said cavities with a mechanism for turning its spool; In the known device, reciprocating movement you is performed at an intake air or in the piston rod end of the actuator and the multiplier 1. The disadvantage of the known device is the low productivity. The purpose of the invention is to increase productivity and improved operating conditions. This goal is achieved by the fact that a press containing a movable plate mounted on a frame and interconnected by columns and a housing with coaxially placed pistons of the power cylinder and multiplier, forming rod and piston cavities in it, as well as mounted on the frame and connected to the force cylinder the fixed plate and the pneumatic actuator, which includes a distribution valve connected to the said cavities with a rotation mechanism of its spool, is equipped with a pressure reducing valve and a shut-off valve The mechanism of rotation of the valve spool of the distribution crane is made in the form of a piston cylinder with a rail and a latch fixed on its case, a gear sector, a controlled stop and pneumatic distributors, the gear sector is fixed on the valve spool, the control stop is placed on the bed, the piston cylinder mounted with the ability to interact with their rail and the latch, respectively, with the toothed sector and controlled stop, a reducing valve and a gate valve are installed between the valve The main valve and porous cavity of the multiplier, and the cavities of the piston cylinder and the controlled abutment are connected via pneumatic distributors with a pneumatic actuator. FIG. 1 shows a press, a general view; in fig. 2 - The concept of the press. The press contains a bed 1 with a fixed plate 2 fixed on it, in the holes of which columns 3 are placed, connecting the movable plate 4 and the case 5. In the case 5 the piston 6 of the power cylinder and the piston 7 of the multiplier cylinder are coaxially mounted. The cavities of the power cylinder and the multiplier cylinder are connected by lines to a distribution valve 8, on the spool of which a toothed sector 9 is attached, which interacts with a rail 10 mounted on the body of the cylinder 11. The latch 12 is fixed to the same case, which interacts with a control stop 13. On The main line between the piston cavity of the multiplier cylinder and the distribution valve 8 has a reducing valve 14 and a shut-off valve 15. The pneumatic actuator includes a time relay 16 connected to the pressure source , the pneumatic valve 17 and the adjustable stop 18 interacting with it, the pneumatic valve 19 with the stop 20, as well as the pneumatic distributors 21-24 and the switch 25. The press works as follows. When simultaneously pressing the pneumatic distributors 21, the pneumatic distributor 22 is switched and the compressed air enters the cavity of cylinder II, the toothed sector 9 rotates until the latch 12 contacts the control stop 13. In this case, the compressed air flows into the piston cavity of the power cylinder, and the piston cavity of the multiplier cylinder informs with the atmosphere. The movable plate 4 descends under pressure and at the end of its idling the adjustable stop 18 presses the pneumatic valve 17, as a result of which an input signal is given to the time relay 16 and to the lowering of the controlled stop 13. The gear sector 9 rotates into the next step and the air served in the piston cavity of the multiplier cylinder — plates 2 and 4 are closed under working pressure. After the end of the pressure exposure, time relay 16 provides an output signal for switching the distributor 22 and returning the rail to its original position. In this case, the compressed air enters the rod cavity of the power cylinder, and the cavities of the remaining cylinders communicate with the atmosphere. The movable plate 4 rises. When you press the stop 20 on the pneumatic valve 19, the ejector operates. The pusher returns when the valve is pressed 24. In an emergency, when the valve 23 is pressed, the movable plate 4 quickly rises up. The economic effect of applying the proposed press is achieved by increasing productivity and improving operating conditions.

Claims (1)

PRESS, comprising a movable plate mounted on a bed and interconnected by columns, and a housing with coaxially arranged pistons of the power cylinder and the multiplier forming rod and piston cavities in it, as well as a fixed plate mounted on the bed and connected to the piston of the power cylinder, including a pneumatic actuator including highways with the mentioned cavities, a distribution valve with a rotation mechanism of its spool, characterized in that. I y. ! b * “Abar. ζ Pressure f ' Burden relay and I FROM. that, in order to increase productivity and improve operating conditions, it is equipped with a pressure reducing valve and a shut-off valve, and the rotation mechanism of the control valve spool is made in the form of a piston cylinder with a rack and latch fixed to its body, a gear sector, a controlled stop and pneumatic distributors, while the sector is fixed on the spool of the distribution valve, the controlled stop is placed on the bed, the piston cylinder is mounted with the possibility of interaction with its rail and latch, respectively -retarded with a toothed sector and driven abutment, the pressure reducing valve and the shutoff valve mouth Credited between the control piston and e tap multiplier cavity, and the cavity ® piston and cylinder. controlled stop are connected through pneumatic distributors with pneumatic actuator. SU. „1119857 Fig 1 ί119857