CN2221461Y

CN2221461Y - Cut-off machine

Info

Publication number: CN2221461Y
Application number: CN 94204941
Authority: CN
Inventors: 贺鸿恩
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-19
Filing date: 1994-03-19
Publication date: 1996-03-06
Anticipated expiration: 2004-03-19

Abstract

The utility model relates to a cut-off machine which is matched with continuous formers. The cut-off machine is mainly composed of a machine frame, a bogie, a cutting-off device, a linkage device, a dimensioning device and a servo system. The cut-off machine adopts product output to directly control the servo system, achieves the synchronisation between the cut-off machine and the product output, and omits a series of precise and expensive intermediate conversion devices of the existing cut-off machines, which reduces the cost of manufacture and operation and increases the reliability and the precision of cutting off, suitable to be widely used for pipe welders, shape steel extruders, shape plastics extruders, etc.

Description

Cutting machine

The utility model is a cutting machine, is and the matching used equipment of continuous forming machine.

Current, cutting machine has a variety of, the comparatively advanced and representational shearing device that has on the stainless steel welded pipe machine that China introduces in the recent period, a kind of comparatively advanced " electrohydraulic digital control flying saw " also introduced in China's patent application (application number 91102704.1).These cutting machine courses of work are as follows: cut the product movement velocity and detect and convert to electrical pulse sequence by speed measuring motor, machine is counted as calculated, frequency division, form the control impuls sequence after the frequency-selecting, send the power amplification of stepping power cabinet to, and annular is distributed to stepper motor, stepper motor drives a numeral and cuts down spool, spool moves the flow size and Orientation of the oil that has changed the digital valve of flowing through, oil enters oil motor, the rotating speed of oil motor and turning to also along with change, the oil motor output shaft is through output shaft gear on the feedback gear case and the engagement of the tooth bar on the dolly, thus the drive moving of car; Meanwhile, the feedback gear case is paid by the feedback spiral and is given stepper motor with motion feedback, forms semi-closed loop system.When moving of car speed with cut product synchronously and the number of turns machine measuring and calculating as calculated that turns over of speed measuring motor, reach when being cut product and answering shearing length, computer sends instruction, shearing device cuts off product, the whole system reposition.

This shearing device can be finished cut-out work preferably, and sizing accuracy also increases, thereby obtains certain promotion and application.But this cutting machine intermediate conversion links is many, and the error link also increases, thus product scale error still big (≤6mm) because complex structure makes to involve great expense, (current home-made machine state tax-included price more than 20 ten thousand yuan) running expense height.Complex structure also causes the fault rate height, the Maintenance and Repair difficulty.

The purpose of this utility model is: overcome the weak point of existing cutting machine, make that its structure is simpler, more reliable, the error link still less, cost is lower, and is convenient to safeguard and maintenance.

The purpose of this utility model is achieved in that cutting machine is mainly by frame 1, the dolly 2 that can on frame 1, move, be contained on the dolly 2 by electromagnetism cylinder 3, cut off motor 4, the shearing device that saw blade 5 is formed and by oil pump 14, the power set that Oil pump electrical machinery 15 is formed constitute, in addition by controlled clamp 7, between the linkage and power set that electromagnet 11 is formed, also has a cover by spool external part 9, spool 10, valve body 12, spring 13, piston rod 16, the servo-drive system that cylinder body 17 is formed, linkage is cut between product 6 and the servo-drive system moving, and the length measuring device 18 of a cover control linkage and shearing device is arranged, 19.Often be in poised state between frame and servo-drive system.During work, according to product requirement, signal is set and sent to length measuring device, linkage is cut product 6 with servo-drive system with the quilt of exporting continuously from make-up machine and is linked, the power of power set is synchronized with the movement through servo-drive system drive dolly and output products, length measuring device sends signal for the second time, the shearing device action is return original position after product is cut off, length measuring device sends signal once more, linkage separates servo-drive system with the product of exporting from make-up machine, servo-drive system and dolly return initial position, are in poised state again after running into frame, and a cutting-off process is finished.

Because the utility model is taked output products directly to control servo-drive system and is reached dolly and the synchronous scheme of product output speed, many complexity, precision and expensive intermediate conversion devices such as the speed measuring motor of existing cutting machine and conversion equipment, computer and power amplifier device, stepper motor, feedback gear case have been saved, thereby make the cutting machine structure obtain simplifying, manufacturing cost and operating cost all reduce, because mechanism simplifying, the error link also reduces thereupon, fault rate reduces, reliability increases, and also is convenient to safeguard and maintenance.

The drawing explanation of accompanying drawing:

Fig. 1 is a vertical view of the present utility model;

Fig. 2 is the A-A profile of accompanying drawing 1;

Fig. 3 is that the B of accompanying drawing 1 is to view;

Fig. 4 is the partial structurtes figure of the another kind of linkage of the utility model.

Solution of the present utility model is that embodiment is described further with accompanying drawing 1:

What Fig. 1 showed is the cutting machine general arrangement that Hydrauservo System is arranged.Constitute shearing device by electromagnetism cylinder 3, cut-out motor 4, saw blade 5 and back-moving spring, constitute power set by oil pump 14 and Oil pump electrical machinery 15 etc., form Hydrauservo System by spool external part 9, spool 10, valve body 12, spring 13, piston rod 16, cylinder body 17, constitute linkage by controlled clamp 7 and electromagnet 11, by 3 pairs of light---electric position sensor 18,19 constitutes length measuring device.The mutual alignment of each member and connecting mode can have multiple, and as shown in Figure 1, dolly 2 can be done and cut product 6 moving in the same way along frame 1.Cut off motor 4 and saw blade 5 can along dolly 2 do with quilt cut product 6 vertical to move.First pair of light---electric position sensor 18,19 can satisfy length dimension requirement place after being located at and downcutting product when being cut the arrival of product 6 terminations, and sensor 18,19 signals can be controlled electromagnet 11 adhesives of linkage.Cut the position that product 6 terminations arrive after second pair of light---electric position sensor 18,19 is located at dolly 2 and is cut product 6 synchronized movement, can be controlled the adhesive of shearing device electromagnetism cylinder 3.The 3rd pair of light---electric position sensor 18,19 is located at will treat to be cut next time the position of product 6 terminations after shearing device will be cut product 6 cut-outs, and sensor 18,19 signals can be controlled linkage electromagnet 11 and separate.The valve body 12 of hydraulic servo, the piston rod 16 of oil cylinder are connected with dolly 2, and cylinder body 17 links with frame 1.The external part 9 and the controlled clamp 7 of valve core of servo valve 10 link, and can collide with the boss 8 of frame 1, and spring 13 is the compression spring.The oil-in of The servo valve and oil pump 14 are connected, and two oil-outs connect the left and right chamber of oil cylinder, oil recirculating port connecting tank respectively.During work, length measuring device requires to send signal according to product length, and the linkage action is associated in the product that is moving with servo-drive system, the power of power set is synchronized with the movement through servo-drive system drive dolly and product, length measuring device sends signal again, and the shearing device action is return original position behind the cut-out product, decide extending apparatus and send signal for the third time, linkage separates servo-drive system with product, servo-drive system and dolly are got back to original position, and a full course of work is finished.

The detailed operation process of cutting machine is as follows: when cutting machine was in initial position, owing to spring 13 and spool external part 9 are subjected to the dynamic balance of boss 8 to make servo spool 10 be in meta, oil cylinder was failure to actuate, dolly 2 transfixions.The termination of cutting product 6 when the quilt of exporting continuously from make-up machine arrives first pair of light---electric position sensor 18, during 19 positions, sensor 18,19 signal, electromagnet 11 adhesives, one end of controlled clamp 7 will be cut product 6 and be clamped, so clothes spool 10 overcomes spring 13 pressure with being cut product 6 motions, spool 10 relative valve body 12 motions, servo valve is opened, motor 15 drives oil pump 14, the pressure oil of sending here from oil pump 14 flows to the left chamber of cylinder body 17 through servo valve, the valve body 12 that piston rod 16 drives on dolly 2 and the dolly 2 is done to be cut product 6 accelerated motion in the same way with quilt, when the motion of dolly 2 and valve body 12 is cut product 6 synchronized movement with quilt, the servo valve aperture keeps definite value, this moment, the end of product 6 arrived second pair of light---electric position sensor 18,19 positions, sensor 18,19 send signal, 3 adhesives of shearing device electromagnetism cylinder, promote to cut off motor 4 and saw blade 5 and cut product 6 motions to quilt, to be cut and be return original position after product 6 cuts off, treat that the end of being cut product 6 next time arrives the 3rd pair of light---electric position sensor 18 this moment, 19, the 3rd pair of position sensor 18,19 send signal, electromagnet 11 separates, one end of controlled clamp 7 will be cut product 6 and be unclamped, spool 10 relative valve body under spring 13 effects is done counter motion, make servo valve along reverse opening after crossing the centre position, the pressure oil of sending here from oil pump 14 flows to the right chamber of cylinder body 17 through servo valve, piston rod 16 drives dolly 2 and does counter motion with valve body 12 and the spool 10 relative products 6 of being cut, when near initial position, the external part 9 and the boss 8 of spool 10 are collided, spool 10 stop motions, dolly 2 continues motion with valve body 12, the aperture of valve reduces, give up to the power of spring 13 and boss 8 spool 10 external part 9 dynamic balance and make servo spool 10 keep metas, the pressure oil in two chambeies is cut off by servo valve about oil cylinder at this moment, dolly 2 is fixed on initial position, finishes a cut-out cycle.

Controlled clamp 7 can be a hinge arrangement, and controlled clamp 7 one ends are positioned to be cut outside the product 6, and the other end is equipped with electromagnet 11.

Fig. 4 is the another kind of linkage of this cutting machine, it is by one group of cylinder 20, framework 21 and working head 22 are formed, framework 21 centers are cut product 6 centers with quilt and are overlapped, cylinder 20 is contained on the framework 21, working head 22 is contained on the cylinder bar, the external part 9 of spool 10 links with an end of framework 21, the other end of framework 21 is connected with guide post 23, pilot hole frame 24 links with dolly 2, two electromagnetism cylinders are arranged at the two ends of framework 21, hydraulic cylinder or vapour pressure cylinder 20, when cylinder 20 adhesives, the quilt that the working head 22 of cylinder will move is cut product 6 and is clamped, thereby drive framework 21, guide post 23 is cut product 6 with the external part 9 of spool 10 with quilt and is synchronized with the movement, and when cylinder 20 separated, spring 25 resetted linkage.

Servo valve can be simple and mechanical servo valve, also can be the electrohydraulic servo valve that has displacement transducer.Cutting machine can adopt pneumatic servo, also can adopt the electric power servo-drive system, and the element of being correlated with this moment changes gas-pressure component into or electrical equipment gets final product.Also can adopt electricity, liquid, gas hybrid system.Executive component can be an oil cylinder, also can be oil motor, motor etc.Length measuring device can be used the PC programmable controller, need record the time interval or the parameter of each motion before the programming, also available one group of high precision time relay.The second couple in the accompanying drawing 1, the 3rd pair of light---electric position sensor 18,19 also can be placed on the relevant position of dolly 2 motion processes.

The utility model can be widely used in equipment such as welded pipe machine, shape extruder, plastic material extruder.

Claims

1, a kind of cutting machine, mainly by frame 1, the dolly 2 that can on frame 1, move, be contained on the dolly 2 by electromagnetism cylinder 3, cut off motor 4, the shearing device that saw blade 5 is formed and by oil pump 14, the power set that Oil pump electrical machinery 15 is formed constitute, it is characterized in that: by controlled clamp 7, one cover is arranged by spool external part 9 between linkage that electromagnet 11 is formed and the power set, spool 10, valve body 12, spring 13, piston rod 16, the servo-drive system that cylinder body 17 is formed, linkage is cut between product 6 and the servo-drive system moving, have a cover control linkage and shearing device by light one electric position sensor 18,19 length measuring devices of forming.

2, cutting machine according to claim 1 is characterized in that: the controlled clamp 7 of linkage can be a hinge arrangement, and controlled clamp 7 one ends are positioned to be cut outside the product 6, and the other end is equipped with electromagnet 11.

3, cutting machine according to claim 1 is characterized in that: linkage can be made up of one group of cylinder 20, framework 21 and working head 22, and framework 21 centers are cut product center with quilt and overlapped, and cylinder 20 is contained on the framework 21, and working head 22 is contained on the cylinder bar.

4, cutting machine according to claim 1 is characterized in that: length measuring device can be a cover programmable controller.

5, cutting machine according to claim 1 is characterized in that: length measuring device can be one group of time relay.