CN2532973Y

CN2532973Y - Controller for mechanical press

Info

Publication number: CN2532973Y
Application number: CN 01276251
Authority: CN
Inventors: 吴庆来; 蔚旭
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-11-27
Filing date: 2001-11-27
Publication date: 2003-01-29
Anticipated expiration: 2011-11-27

Abstract

The utility model relates to a controller for mechanical press. The principle is to adopt a Programmable Logic Controller (PLC) as the control component, and use a rotary coder as the trip sensor. A cam mechanism and a control mechanism are both completed by PLC software, a mechanical cam mechanism (or an electronic cam) and a relay for controlling are canceled, so that the size of the control cabinet is reduced greatly, the reliability is improve greatly, and the failure-free operation time is increased by over 10 times as compared with the conventional relay logic circuit. The utility model has the advantages of no cam mechanism, combination of the cam and the relay, completion in the form of software, and simplification of hardware configuration, and is applicable to all mechanical presses.

Description

A kind of mechanical pressure machine controller

The utility model belongs to the innovation, the particularly innovation of closed type single point press control technology of Machine-Tool Control facility class punching machine control technology.

At present, the control of punching machine generally is to adopt mechanical type rotating cam or electric cam to carry out forcing press control as stroke of a press position sensor, and logic control is finished by relay.Owing to the frequent movement of contact causes fault to increase, the low and control function of reliability realizes by the rigid connection of hardware, in case after the moulding, it is very difficult to change function, or even impossible.

The purpose of this utility model is for more and more complicated in modern machine electrical equipment logic, number of elements is more and more many, operating frequency is more and more high, under the situation that action logic often requires again to change, a kind of punching machine that makes that application microelectric technique realizes is controlled reliably, perfect in shape and function, a kind of controller that fault rate is low.

The purpose of this utility model is to implement by following technical scheme: with the stroke sensor of rotary encoder as punching machine, PLC realizes logic control as control assembly with programmable controller.Its cam mechanism and controlling organization are finished by PLC software, issue the action command of forcing press as the human-computer dialogue element with push-button station; With programmable device issue action logic change order.

The utility model has the advantages that:

1, cancelled as contact elements such as the cam switch of stroke sensor and numerous relays of control logic executive component and replaced the software control of PLC, overcome contact element intrinsic fragile, response speed is slow, fault rate is high, the bulky shortcoming of switch board;

2, owing to adopted microelectronic products such as PLC and rotary encoder to make controller have the response speed height, not fragile, fault rate reduces greatly, the advantage that the switch board volume is little;

3, because the performer of control logic is a programmable controller, can change control logic by the operation human needs easily, make control more flexible.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:

A kind of mechanical pressure machinery of Fig. 1 controller block diagram

Among the figure 1---push-button station

2---programmable controller PLC

3---executive component by contactor, amplify with auxiliary reclay etc. and form

4---forcing press

5---rotary encoder

6---programmable device

Fig. 2 JD31-250 mechanical pressure machine controller layout drawing

Among the figure 1---push-button station

2---programmable controller PLC

3---executive component is amplified with compositions such as auxiliary reclays, all by contactor

Be placed in the electric cabinet

4---forcing press

5---rotary encoder

6---programmable device

At the positive right side of face of forcing press, highly push-button station 1 is installed as the human-computer dialogue parts of operator to machine issue action command in the place that is convenient to operation for staff.The operator can give an order and make forcing press finish various operations.

The order of push-button station is contained in the PLC in the electric cabinet by cable input.PLC relies on the program of storage, sends various instructions according to order and gives the executive component that is contained in the electrical control cubicles, and executive component makes forcing press by the PLC instruction operation.

The travel position of forcing press then is transported to rotary encoder 5 by machine driving, realizes the action of forcing press is controlled by cable input PLC again.

Then can be undertaken as making amendment by programmable device 2 to the working procedure of forcing press.

The forcing press controller is exactly to have realized control to forcing press by above program.

Claims

1. a forcing press controller is installed with rotary encoder, push-button station on forcing press; Executive component is installed, Programmable Logic Controller PLC, programmable device in the electrical control cubicles, it is characterized in that Programmable Logic Controller PLC respectively with rotary encoder, push-button station, programmable device, executive component input, forcing press is electrically connected, and forcing press then is electrically connected with the executive component output.

2. forcing press controller according to claim 1 is characterized in that forcing press and rotary encoder make mechanical connection.

3. forcing press controller according to claim 1 is characterized in that the cam switch function realizes that by PLC software the cam switch number can reach 50 at most.