CN2155290Y

CN2155290Y - Location-feeding control device for brick-milling and grinding machine

Info

Publication number: CN2155290Y
Application number: CN93228442U
Authority: CN
Inventors: 张鹏仁; 张忠恒
Original assignee: ZHANG PENGREN)
Current assignee: ZHANG PENGREN)
Priority date: 1993-06-11
Filing date: 1993-06-11
Publication date: 1994-02-09
Anticipated expiration: 2003-06-11

Abstract

The utility model provides a feed control device for a brick milling machine. In a major loop, a feed motor is connected to a brake direct current power supply through the normally open contact of an alternating current contactor; in a control loop, a time relay is mainly adopted to time work; the positioning-typed feed purpose is achieved through timing. Accordingly, the quality of the processed brick material can be ensured, the service life of a milling tool and a machine tool is extended, and the operation is safe.

Description

Location-feeding control device for brick-milling and grinding machine

The utility model relates to the device that mills the rattler control depth of cut, and it comprises the depth of cut of side grinding mechanism and plain grinding mechanism, and the so-called depth of cut is meant processing heads such as bistrique or drill bit, the stroke of contact processing work.

Milling has side grinding mechanism and plain grinding mechanism on the rattler, their depth of cut mainly is by soon manually, i.e. the hand feed that touches the button, and loosing one's grip just stops feed, and obviously grasping the suitable depth of cut is not an easy thing.The depth of cut is little, can't finish processing tasks; The depth of cut is big, can bring following passive problem: the corner angle of (1), destructible processing brick material, cause waste product; (2), diamond abrasive tool or carborundum grinding tool easily fall tooth or come off; (3), after the collision of mill and processing brick material, dangerous accident takes place easily; (4), influence the lathe life-span.Can bring very big psychological pressure to operating personnel thus.

The purpose of this utility model provides a kind of rattler that mills of above-mentioned deficiency of avoiding and locatees the feed control device.

The purpose of this utility model is achieved in that it is on the basis that has the feed control device that mills rattler now, has increased following technique measures, and this measure is:

(1), in major loop

(1.1), resistance seals in each phase line of feed motor;

(1.2), the normally opened contact of feed motor by A.C. contactor, connect the braking dc source;

(2), in control loop

(2.1), feed K switch is at a slow speed connected with relay 5J;

(2.2), often open in the button 5AN loop, seal in the time-delay normally-closed contact 3SJB of the time relay, after the normally opened contact 5JK series connection of relay 6J and relay 5J, a termination is gone between feed button 5AN and the 3SJB, another termination power in feed;

(2.3), the normally opened contact 6JK of relay 6J connects with time relay 3SJ;

(2.4), after the time-delay normally opened contact 3SJK parallel connection of the normally-closed contact 5JB of relay 5J and 3SJ, connect with normally opened contact 5JK, the A.C. contactor 9C of 5J;

Above-mentioned four loop parallel connections.

Operation principle and method of operating are:

(1), closed K, 5J gets;

(2), press feed button 5AN,

(2.1), 10C gets electricly, string is got through the feed major loop in the 10C of feed major loop normally opened contact closure, electric current is by the resistance flow direction motor, the transhipment of motor limit is changeed, and reduces motor inertia;

(2.2), the 5JK closure, relay 6J gets;

(2.3), the 6JK closure, 3SJ gets electric, enters timer time;

(2.4), after time-delay a period of time (by 3SJ decision), 3SJB disconnects, the 10C dead electricity, the normally opened contact of 10C disconnects, and cuts off the feed motor drive power supply;

(2.5), the 5JK closure, the 3SJK closure, 9C gets;

(2.6), the normally opened contact closure of 9C, the feed motor is connected braking dc source, feed motor braking.

This shows that if feed this moment is often driven button and still is pressed, but the feed motor brakes, the closing time that button is often driven in no longer feed, i.e. feed stroke or time and feed has nothing to do, and relevant with time relay 3SJ.

The utility model compared with prior art, it can realize locating feed, can guarantee to process the quality of brick material, improves the service life of grinding tool and lathe, and is safe and reliable, and can reduce operating personnel's psychological burden, it is particularly suitable for primary operator and uses.

Provide two embodiment below.

Embodiment one: side grinding mechanism adopts location feed control device

Fig. 1 is the major loop of present embodiment.

Fig. 2 is the control loop of present embodiment.

It is on the basis that has the side grinding mechanism controls device that mills rattler now, has increased following technique measures:

(1), in major loop (referring to Fig. 1, particularly in the frame of broken lines)

(1.1), after the normally opened contact parallel connection of resistance R and 13C, seal in each phase line of moving motor 7D inside and outside the side grinding;

(1.2), the normally opened contact of 7D by 9C, connect the braking dc source;

(2), in control loop

(2.1), feed K switch is at a slow speed connected with relay 5J;

Above-mentioned four loop parallel connections.

Operation principle and method of operating are:

When 1, moving in the side grinding, open K, 5J gets electric, and the normal battle of 5J is closed, and normally closed point is opened, and presses 5AN this moment.By X1 →

→

→

→ → X3 constitutes the loop,

Must be electric, contactor 10 closures are seen major loop, electric current through contactor 10, passes to motor (motor speed limit running) by resistance R 2 by A, B, C.

Get the electric while, because

Normal make war closed, by X1 →

→ →

→ X3 constitutes the loop,

Electric, it is normal make war closed, by X1 → →

→

Constitute the loop, therefore, Electric, through behind the certain hour, its with point

Open,

Closure, contactor disconnect, X1 → →

→

In → X3 the loop,

Electric, motor braking, this process motor by be opened to the braking required time by

Adjust, finish automatically.

When side grinding moved outward, K got to disconnected position,

Dead electricity, it is had a few all and discharges, and presses 6AN this moment, by X1 →

→

→ → 11C → X3 constitutes the loop,

Electric, contactor 11 closures, simultaneously by X1 →

→

→

In → X3 the loop,

Electric, contactor 13 closures are seen major loop, electric current by A, B, C through 11C to 13C directly feed motor (no longer passing through resistance R, the normal speed running of the motor) while by X1 →

→

→

In → X3 the loop, Must be electric, through behind the certain hour, it is with a little

Closure, when pressing the 6AN answer, X1 →

→

→ →

→ X3,

Get electric contactor 9C closure, motor braking.

Embodiment two: the plain grinding mechanism of side grinding mechanism adopts location feed control device simultaneously

Fig. 3 is the major loop of present embodiment.

Fig. 4 is the control loop of present embodiment.

It is on the basis of embodiment one, and plain grinding mechanism also adopts location feed control device simultaneously, the two parallel connection, and wherein 5D is the motor that drives the crossbeam uplink and downlink.

Operation principle is identical with embodiment one, no longer repeats.

Claims

1, a kind of rattler that mills is located the feed control device, comprises the feed control device of plain grinding mechanism and side grinding mechanism, it is characterized in that:

(1), in major loop

(1.1), resistance seals in each phase line of feed motor;

(2), in control loop

(2.1), feed K switch is at a slow speed connected with relay 5J;

Above-mentioned four loop parallel connections.

2, the rattler location feed control device that mills according to claim 1, it is characterized in that: side grinding mechanism adopts location feed control device.

3, the rattler location feed control device that mills according to claim 1 and 2, it is characterized in that: plain grinding mechanism adopts location feed control device.