CN202257189U

CN202257189U - Production line control circuit encryption device

Info

Publication number: CN202257189U
Application number: CN2011203276142U
Authority: CN
Inventors: 周乃勇; 高波; 林明清; 吴传清; 张远军
Original assignee: Hunan Zhongtai Special Equipment Co Ltd
Current assignee: Hunan Zhongtai Special Equipment Co Ltd
Priority date: 2011-09-02
Filing date: 2011-09-02
Publication date: 2012-05-30
Anticipated expiration: 2021-09-02

Abstract

The utility model discloses a production line control circuit encryption device which comprises a stopping button, a starting loop, an inching loop and a control loop, wherein the starting loop consists of a starting button and a starting assistant relay; the inching loop consists of an inching button and an inching assistant relay; the control loop consists of a main loop alternating-current contactor and corresponding normally-open/normally-closed contacts; the starting loop, the inching loop and the control loop are connected in series and then connected with the stopping button in series; the starting button, the stopping button and the inching button are arranged in a button box; the main loop alternating-current contactor, the starting assistant relay and the inching assistant relay are arranged in a main control cabinet; an encryption button is connected onto the normally-open contact of the starting button in series; and the encryption button is arranged in the button box. The encryption system is simple in control principle and convenient for installation and operation without changing an original control circuit too much; and by using double protection functions of circuit encryption and bell prompt, the control circuit and the personal safety are further ensured.

Description

A kind of production line control circuit encryption equipment

Technical field

The utility model relates to the safety starting device of all kinds of lathes and automatic assembly line, specifically is a kind of production line control circuit encryption equipment.

Background technology

In the electrical control field, mechanical part and electric control system are inseparable.As the electromechanical integration control system; Aspect electrical control, doing suitable Safety Design is very important; Except the safety that guarantees plant equipment normal operation and electric equipment; Today in the harmonious development of advocating that people-oriented, ensure that to greatest extent laborer's personal safety also is each electrician author obligation one can't decline.But at present; Lack of standardization for the design of plant equipment and electric control system; Or workman's operation is lack of standardization; The personal accident accident that both caused happens occasionally, sometimes or even fatal, and wherein often major part all be since operating personnel not according to the working specification caused by operations.In order to prevent electrical equipment and not operation personnel maloperation, start some shift knob, thereby electric control system is implemented corresponding safety prevention measure is very necessary.

The utility model content

Deficiency to above-mentioned prior art existence; The utility model provides a kind of production line control circuit encryption equipment; For electrical systems such as automatic assembly line, Machine-Tool Control install the device of start-up circuit encryption equipment and sound equipment prompting device additional, to reduce the potential safety hazard of being brought lack of standardization of workman's maloperation or design of electrical system.

Utility model technical scheme: a kind of production line control circuit encryption equipment; Comprise stop button, by start button and start startup loop that auxiliary relay forms, the crawl loop formed by inching button and crawl auxiliary relay, the control loop formed by major loop A.C. contactor and corresponding normally-open normally-close contact; Connect with stop button again after startup loop, crawl loop and control loop are parallel with one another; Wherein start button, stop button, inching button are arranged in the button box; Major loop A.C. contactor, startup auxiliary relay, crawl auxiliary relay are arranged in the main control box; It is characterized in that: button is encrypted in series connection on the normally opened contact of start button, encrypts button and is arranged in the button box.

On above-mentioned basis, can also increase the electric bell prompt system of forming by electric bell, timing relay, auxiliary relay, electric bell is installed in the moderate position of production line, and timing relay, auxiliary relay are arranged in the main control box.

Said inching button should select for use the contact to have the button of certain stroke.

The advantage of the utility model: this encryption system control principle is simple, installs, and is easy to operate, need not do too many change to former control circuit; Use circuit to encrypt and electric bell prompting double protection functions, control circuit and personal safety are further ensured; Facts have proved that this encrypted master is simply effective, after installing this controller additional, excessive personal injury accident do not occur.

Description of drawings

Fig. 1 is the utility model first embodiment circuit theory diagrams.

Fig. 2 is the utility model first embodiment button box structural representation.

Fig. 3 is the utility model second embodiment circuit theory diagrams.

Fig. 4 is the utility model second example structure synoptic diagram.

Embodiment

Combine accompanying drawing at present, the utility model is further described.

Embodiment 1: like Fig. 1, shown in Figure 2; A kind of production line control circuit encryption equipment; Comprise stop button 2, by start button 3 and start startup loop that auxiliary relay 8 forms, the crawl loop formed by inching button 5 and crawl auxiliary relay 9, by major loop A.C. contactor 7 and the control loop formed of normally-open normally-close contact accordingly; Connect with stop button 2 again after startup loop, crawl loop and control loop are parallel with one another; Wherein stop button 2, start button 3, inching button 5 are arranged in the button box 1; Major loop A.C. contactor 7, startup auxiliary relay 8, crawl auxiliary relay 9 are arranged in the main control box 6, and button 4 is encrypted in series connection on the normally opened contact of start button 3, encrypt button 4 and are arranged in the button box 1.

The first embodiment circuit theory: two the same buttons of often opening of on the normally opened contact of former control circuit start button SB2, connecting again; Promptly encrypt button SB3, SB4; When pressing start button SB2, if the encryption button SB3, the SB4 that are serially connected in the start-up circuit are not pressed, equipment can not move; Have only all press three buttons after control circuit could connect, equipment could start.The not operation personnel do not know to encrypt push button function, even mistake is pressed arbitrary button, equipment can not be activated yet.Press stop button SB1, cut off the control power supply, equipment stops.

Embodiment 2: like Fig. 3, shown in Figure 4; On the basis of first embodiment; Increased the electric bell prompt system of forming by electric bell 11, timing relay 10, auxiliary relay; More perfect function, electric bell 11 are installed in the moderate position of production line, and timing relay 10, auxiliary relay are arranged in the main control box 6.

The second embodiment circuit theory: press start button SB2, press again and encrypt button SB3, auxiliary relay KA1 adhesive and self-locking; Timing relay KT0 must establish the beginning time-delay by cable simultaneously; Electric current at first passes through the normally closed point of SB1, and KA1 is often made war, the normally closed point of KM1; Electric bell DL gets back to zero line, makes electric bell send the sound equipment prompting.When delay time arrives, the KT0 time-delay is normal makes war closedly, connects main contactor KM1-KM4, and the normally closed point of KM1 is opened the electric bell control loop simultaneously, and warning stops, and production line gets into normal starting state.Delay time is looked actual operating position and is arranged on 5s-10s.

Claims

1. production line control circuit encryption equipment; Comprise stop button (2), by start button (3) and start startup loop that auxiliary relay (8) forms, the crawl loop formed by inching button (5) and crawl auxiliary relay (9), by major loop A.C. contactor (7) and the control loop formed of normally-open normally-close contact accordingly; Connect with stop button (2) again after startup loop, crawl loop and control loop are parallel with one another; Wherein stop button (2), start button (3), inching button (5) are arranged in the button box (1); Major loop A.C. contactor (7), startup auxiliary relay (8), crawl auxiliary relay (9) are arranged in the main control box (6); It is characterized in that: button (4) is encrypted in series connection on the normally opened contact of start button (3), encrypts button (4) and is arranged in the button box (1).

2. a kind of production line control circuit encryption equipment according to claim 1; It is characterized in that: also increased the electric bell prompt system of forming by electric bell (11), timing relay (10), auxiliary relay; Electric bell (11) is installed in the moderate position of production line, and timing relay (10), auxiliary relay are arranged in the main control box (6).

3. a kind of production line control circuit encryption equipment according to claim 1, it is characterized in that: said inching button (5) should select for use the contact to have the button of certain stroke.