CN2657058Y

CN2657058Y - Automatic cyclic control circuit

Info

Publication number: CN2657058Y
Application number: CN 03259907
Authority: CN
Inventors: 胡品龙; 胡品荣; 陈洪
Original assignee: HUAHONG HYDRAULIC MECHANICAL FACTORY JIANGYIN CITY
Current assignee: Jiangsu Huahong Technology Co Ltd
Priority date: 2003-07-28
Filing date: 2003-07-28
Publication date: 2004-11-17
Anticipated expiration: 2013-07-28

Abstract

The utility model relates to an automatic circular control circuit which is mainly used to control all the actions, such as the working, the return, the stopping, the pointing return, the single roundtrip and the continuous roundtrip of the mechanic equipment. The utility model comprises intermediate relays KA1, KA2, KA3, electric magnets YV1,YV2 ,a knob switch SA, induction switches SQ1, SQ2 and a shearing button SB4 and a pointing return stopping button SB1. The circuit of the utility model is simple, and has long use life span and stable and reliable performance.

Description

The Automatic Cycle control circuit

Technical field:

The utility model relates to a kind of Automatic Cycle control circuit.Be mainly used in the control plant equipment work, backhaul, stop, all actions such as crawl backhaul, single come and go and come and go continuously.

Background technology:

Traditional Automatic Cycle control circuit all is to adopt the regular circulation circuit.Limit switch therebetween is to adopt travel switch, utilizes block direct collision formula.So in actual production process, through regular meeting the travel switch fault appears, easy wrong lead when changing travel switch even, thus had a strong impact on user's ordinary production.

Summary of the invention:

The purpose of this utility model is to overcome above-mentioned deficiency, provides that a kind of circuit is simple, long service life, stable, Automatic Cycle control circuit reliably.

The purpose of this utility model is achieved in that a kind of Automatic Cycle control circuit, comprise auxiliary reclay KA1, KA2, KA3, electromagnet YV1, YV2, rotary switch SA, inductive switch SQ1, SQ2 and shear button SB4 and stop crawl backhaul button SB1, the normally open contact 2-14 of rotary switch SA is with after the auxiliary normally open contact 14-5 of auxiliary reclay KA3 connects, carry out in parallel with the auxiliary normally open contact 2-5 of auxiliary reclay KA1 and the normally open contact 2-5 of shearing button SB4, connect with the auxiliary normally closed interlock 5-11 of auxiliary reclay KA2 then, the coil with auxiliary reclay KA1 is composed in series the loop again; The normally open contact 1-10 of rotary switch SA connects with the normally open contact 10-13 of inductive switch SQ2, and the coil with auxiliary reclay KA3 is composed in series the loop again; After the auxiliary normally open contact 2-6 parallel connection of the normally open contact 2-6 of inductive switch SQ1 and auxiliary reclay KA2 with after normally open contact 1-6 that stops crawl backhaul button SB1 and normally closed interlock 1-2 connect, connect with the auxiliary normally closed interlock 6-12 of auxiliary reclay KA3 again, coil with auxiliary reclay KA2 is composed in series the loop again, and the normally closed interlock 6-10 of rotary switch SA is connected in the loop of auxiliary reclay KA2, KA3; The main contact 1-8 of auxiliary reclay KA2 and electromagnet YV2 form the loop; The main contact 1-7 of auxiliary reclay KA1 and electromagnet YV1 form the loop; Above-mentioned all loops all are connected in parallel in forms control circuit in the circuit.

The utility model adopts two-wire system open type inductive switch, be collision-free, thoroughly change traditional connection of former travel switch four-wire system-often open-normally closed and caused the spacing action form that puts in place and spread out of, cycling circuit, having simplified traditional four-wire system installs, adopt induction type near switch in this control circuit, and also have water proofing property, make the serviceable life of entire circuit more stable and reliable.

Description of drawings:

Fig. 1 is used for the embodiment circuit diagram of hydraulic pressure scrap shears off line for the utility model.

Embodiment:

Embodiment 1:

Fig. 1 is a kind of Automatic Cycle control circuit of hydraulic pressure scrap shears off line.It is mainly by auxiliary reclay KA1, KA2, KA3, electromagnet YV1, YV2, rotary switch SA, inductive switch SQ1, SQ2 and shear button SB4 and stop crawl backhaul button SB1 and form.

The normally open contact 2-14 of rotary switch SA is with after the auxiliary normally open contact 14-5 of auxiliary reclay KA3 connects, carry out in parallel with the auxiliary normally open contact 2-5 of auxiliary reclay KA1 and the normally open contact 2-5 of shearing button SB4, connect with the auxiliary normally closed interlock 5-11 of auxiliary reclay KA2 then, the coil with auxiliary reclay KA1 is composed in series the loop again; The normally open contact 1-10 of rotary switch SA connects with the normally open contact 10-13 of inductive switch SQ2, and the coil with auxiliary reclay KA3 is composed in series the loop again; After the auxiliary normally open contact 2-6 parallel connection of the normally open contact 2-6 of inductive switch SQ1 and auxiliary reclay KA2 with after normally open contact 1-6 that stops crawl backhaul button SB1 and normally closed interlock 1-2 connect, connect with the auxiliary normally closed interlock 6-12 of auxiliary reclay KA3 again, coil with auxiliary reclay KA2 is composed in series the loop again, and the normally closed interlock 6-10 of rotary switch SA is connected in the loop of auxiliary reclay KA2, KA3; Often open main contact 1-8 and the electromagnet YV2 of auxiliary reclay KA2 form the loop; Often open main contact 1-7 and the electromagnet YV1 of auxiliary reclay KA1 form the loop; Above-mentioned all loops all are connected in parallel in forms control circuit in the circuit.

The work control principle:

A, single work place single working position (promptly selecting normally opened contact 2-14, the 1-10 of knob SA to be in disconnection, the normally closed interlock 6-10 closure of SA) with knob SA, and then shearing work need realize by shearing button SB4.Push and shear button SB4, shear button SB4 and normally open contact 2-5 closure, the coil of auxiliary reclay KA1 gets, the closed holding circuit that forms of the auxiliary normally open contact 2-5 of auxiliary reclay KA1, simultaneously auxiliary reclay KA1's often leaves main contact 1-7 closure, electromagnet YV1 gets electric, and shearer begins to shear.When shear knife goes downwards to inductive switch SQ1, inductive switch SQ1 normally open contact 2-6 closure, the coil of auxiliary reclay KA2 gets, the closed holding circuit that forms of the normally open contact 2-6 of auxiliary reclay KA2, simultaneously auxiliary reclay KA2's often leaves main contact 1-8 closure, electromagnet YV2 gets, cutting machine begins backhaul, when inductive switch SQ2 is arrived in backhaul, the normally open contact 10-13 closure of inductive switch SQ2, the coil of auxiliary reclay KA3 gets electric, and the auxiliary normally closed interlock 6-12 of auxiliary reclay KA3 disconnects the coil losing electricity of auxiliary reclay KA2, the normally open contact 2-6 of auxiliary reclay KA3,1-8 disconnects, the coil losing electricity of while auxiliary reclay KA3, shearer just quits work, and finishes a circulation this moment.Whenever finish a working cycle by once shearing button SB4.

B, continuous working place continuous working position (promptly select normally open contact 2-14, the 1-10 of knob SA to be in the close position, SA normally closed interlock 6-10 disconnects) with knob SA, and then cutting machine will be sheared continuously, backhaul and binder, binder unclamp action.Push and shear button SB4, shear the normally open contact 2-5 closure of button SB4, the coil of auxiliary reclay KA1 gets, the closed holding circuit that forms of the auxiliary normally open contact 2-5 of auxiliary reclay KA1, simultaneously auxiliary reclay KA1's often leaves main contact 1-7 closure, electromagnet YV1 gets electric, and shearer begins to shear.When clipping to inductive switch SQ1, the normally open contact 2-6 closure of inductive switch SQ1, the coil of auxiliary reclay KA2 gets, the closed holding circuit that forms of the auxiliary normally open contact 2-6 of auxiliary reclay KA2, simultaneously auxiliary reclay KA2's often leaves main contact 1-8 closure, electromagnet YV2 gets, the cutting machine backhaul, when inductive switch SQ2 is arrived in backhaul, the normally open contact 10-13 closure of inductive switch SQ2, the coil of auxiliary reclay KA3 gets, the auxiliary normally closed interlock 6-12 of auxiliary reclay KA3 disconnects, auxiliary reclay KA2 coil losing electricity, and the main contact 1-8 that often opens of auxiliary reclay KA2 disconnects, backhaul electromagnet YV2 dead electricity, cutting machine stops backhaul; Meanwhile, the auxiliary normally open contact 5-14 closure of auxiliary reclay KA3, it is electric that the coil of auxiliary reclay KA1 is got, thus it is electric that electromagnet YV1 is got, and begins to carry out next working cycle again, the cutting machine continuous working that so goes round and begins again.

C, urgency is stopped, as unusual circumstance, every flicking stops crawl backhaul button SB1 once in this process in the crawl backhaul, and the normally closed interlock 1-2 of SB1 disconnects, cutting machine at any time, any stroke interruption of work.Every heavy crawl backhaul button SB1 that clicks, the normally open contact 1-6 closure of SB1, then cutting machine is with backhaul once.

Claims

1, a kind of Automatic Cycle control circuit, it is characterized in that it comprises auxiliary reclay KA1, KA2, KA3, electromagnet YV1, YV2, rotary switch SA, inductive switch SQ1, SQ2 and shear button SB4 and stop crawl backhaul button SB1, the normally open contact 2-14 of rotary switch SA is with after the auxiliary normally open contact 14-5 of auxiliary reclay KA3 connects, carry out in parallel with the auxiliary normally open contact 2-5 of auxiliary reclay KA1 and the normally open contact 2-5 of shearing button SB4, connect with the auxiliary normally closed interlock 5-11 of auxiliary reclay KA2 then, the coil with auxiliary reclay KA1 is composed in series the loop again; The normally open contact 1-10 of rotary switch SA connects with the normally open contact 10-13 of inductive switch SQ2, and the coil with auxiliary reclay KA3 is composed in series the loop again; After the auxiliary normally open contact 2-6 parallel connection of the normally open contact 2-6 of inductive switch SQ1 and auxiliary reclay KA2 with after normally open contact 1-6 that stops crawl backhaul button SB1 and normally closed interlock 1-2 connect, connect with the auxiliary normally closed interlock 6-12 of auxiliary reclay KA3 again, coil with auxiliary reclay KA2 is composed in series the loop again, and the normally closed interlock 6-10 of rotary switch SA is connected in the loop of auxiliary reclay KA2, KA3; The main contact 1-8 of auxiliary reclay KA2 and electromagnet YV2 form the loop; The main contact 1-7 of auxiliary reclay KA1 and electromagnet YV1 form the loop; Above-mentioned all loops all are connected in parallel in forms control circuit in the circuit.