The rotary cutting length shear unit
One, technical field
The utility model relates to a kind of shearing equipment that is used for metallurgical machinery sector, especially a kind of rotary cutting length shear unit that is used for lateral shear sheet material.
Two, background technology
Existing heavy and medium plate mill 26 covers of China, about 1,000 ten thousand tons of medium plate annual production.The technological transformation of heavy and medium plate mill master rolling line equipment is finished substantially, and side cut on the shear line and scale are cut great majority and also cut at the oblique sword that uses the 50-60 age.Because tiltedly sword is cut no blade clearance adjusting device, tool changing device, length-measuring appliance, automatic control system etc., therefore tiltedly sword shearing steel plate is of poor quality, be that otch is not bright and clean, out-of-flatness, shear rate is low, shear ability is little, working service is time-consuming, can not satisfy the modern cut deal steel rolling mill that transformed main rolling line equipment needs to plate quality, kind, output, country's metallurgy industry recommends to use the rotary cutting length shear unit to undergo technological transformation, and proposes further to improve the shearing quality requirement.
The steel plate length measurement mechanism has two kinds: the one, use measuring roller, and it is fast that it has measuring speed, and the length steel plate such as all can measure at advantage, but linear measure longimetry precision and reliability are than shear gauge difference; The 2nd, use shear gauge, the shear gauge that uses all is single head shear gauges at present, promptly has only a scale plate washer, when shearing the steel plate cut lengths in wide variation, scale speed is low.
Three, summary of the invention
The purpose of this utility model is that a kind of improved rotary cutting length shear unit will be provided, so that overcome above-mentioned the deficiencies in the prior art, further improves shearing quality and efficient.
For addressing the above problem, the technical solution that the utility model adopted is: a kind of rotary cutting length shear unit, comprise by frame, upper tool post, lower slide, panel, blade clearance adjusting device, the twin shaft transmission rotary cutting length shear that transmission device etc. are formed, be located at scale and cut anterior machine front roller-way, be located at scale and cut roller-way behind the machine at rear portion, be located at scale and cut the tool changing device and the transporter of sidepiece, it is characterized in that: the bottom of described twin shaft transmission rotary cutting length shear is provided with servo-actuated magnetic force swing roller-way, this scale is cut the rear portion feed direction and is provided with the bull shear gauge, and the feed direction of this scale shearing machine frame front portion is provided with magnetic force breast roll and pinch roll.Described tool changing device comprises the tool changing dolly and drives hydraulic cylinder.Described bull shear gauge is provided with the fixed ruler baffle more than 2; And be provided with gear, rack gear.Described pinch roll comprises that one group of fixing fixation side pinch roll and one group can be along the mobile side pinch rolls that laterally moves, and this can be provided with mobile device along the mobile side pinch roll that laterally moves.Be equipped with spring oil cylinder clamping device on described upper tool post and the lower slide.Described lower slide is provided with lift cylinders and connects the elevating lever of lift cylinders upper end.Described blade clearance adjusting device comprises motor, the worm decelerating machine of being located at frame top, the wedge of being located at the upper tool post sidepiece.Described panel is provided with spring push broach device, has the steel plate hold down gag of hold-down cylinder, the measuring roller with hydraulic cylinder and material-pulling device.Described servo-actuated magnetic force swing roller-way front portion is provided with stressed support, and its underpart is provided with balance hydraulic cylinder.
After adopting such scheme, the utlity model has following beneficial effect: owing to be provided with servo-actuated magnetic force swing roller-way, when steel plate shearing, magnetic force swing roller-way is held steel plate and is swung up and down, therefore solved the problem of shearing steel plate gravity effect kerf quality, its magnetic force roller-way and magnetic force breast roll can prevent to lack the steel plate motion effectively and skid.Because shear gauge adopts the bull shear gauge, its sizing accuracy obviously improves, and scale speed is also fast.The above adds pinch roll and measuring roller can realize that length steel plate shearing process controls automatically, and can guarantee to control automatically sizing accuracy, but so this rotary cutting length shear unit have shearing quality is good, efficient is high advantage, be the steel plate that otch is bright and clean, smooth, shear number of times height, 50 millimeters of the strong shearing thicknesses of shear ability and intensity 1200Mpa.
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is done thin furtherly description.
Four, description of drawings
Fig. 1 is that the master of the utility model rotary cutting length shear unit looks schematic diagram;
Fig. 2 is the A-A view (arrow A is a feedstock direction among the figure) of Fig. 1;
Fig. 3 is the C-C view of Fig. 2;
Fig. 4 is the shearing mechanism schematic diagram of the utility model rotary cutting length shear unit;
Fig. 5 is the bull shear gauge scale (a) of the utility model rotary cutting length shear unit, the principle schematic of servo-actuated magnetic force swing (b);
Fig. 6 is the tool changing schematic diagram of the utility model rotary cutting length shear unit;
Fig. 7 is that the gap blade of the utility model rotary cutting length shear unit is adjusted schematic diagram.
Code name implication among the figure:
1-master's motor; 2-safety arrestment shaft coupling; The 3-main gear reducer; 4-left and right sides eccentric shaft; 5-left and right sides connecting rod; The 6-upper tool post; 7-circular arc cutter; 8-linear bottom knife; The 9-hold-down cylinder; The 10-hold down gag; The 11-material-pulling device; The 12-hydraulic cylinder; The 13-elevating lever; The 14-frame; The 15-guide post; The 16-motor; The 17-worm decelerating machine; The 18-wedge; The 19-hydraulic cylinder; 20-spring push broach device; The 21-measuring roller; The 22-hydraulic cylinder; The 23-tool changing device; The 24-panel; 25-machine front roller-way; The 26-pinch roll; The 27-mobile device; 28-magnetic force breast roll; The stressed support of 29-; The 30-transporter; The 31-balance hydraulic cylinder; 32-servo-actuated magnetic force swing roller-way; Roller-way behind the 33-machine; 34-scale plate washer; 35-bull shear gauge; The 36-lower slide; The 37-steel plate; 38-gear, tooth bar; 39-spring oil cylinder clamping device.
Five, the specific embodiment
Extremely shown in Figure 7 as Fig. 1, the utility model rotary cutting length shear unit comprises: twin shaft transmission rotary cutting length shear, be located at scale and cut anterior machine front roller-way (25), be located at scale and cut roller-way (33) behind the machine at rear portion, be located at scale and cut tool changing device of sidepiece (23) and transporter (30).Described twin shaft transmission rotary cutting length shear, the inventor has been open in 96233115.5 the Chinese patent in the patent No., so be not described in detail in this, it mainly comprises: fixing frame 14, panel 24 and lower slide 36, be installed in transmission device master motor 1, safety arrestment shaft coupling 2, main gear reducer 3, left and right sides eccentric shaft 4, left and right sides connecting rod 5, upper tool post 6, guide post 15 on the frame 14, can make circular arc cutter 7 along linear bottom knife 8 as the rolling cut shearing steel plate that moves.
The utility model rotary cutting length shear unit improves above-mentioned twin shaft transmission rotary cutting length shear, it is characterized in that: be provided with servo-actuated magnetic force swing roller-way (32) in the bottom of above-mentioned twin shaft transmission rotary cutting length shear, its front portion is provided with stressed support 29, its underpart is provided with balance hydraulic cylinder 31, its roller-way is not by motor and speed reducer transmission (drawing among the figure), move when shearing steel plate as rolling cut along linear bottom knife 8 at cutter 7, make magnetic force swing roller-way hold steel plate and swing up and down, therefore solved the problem of shearing steel plate gravity shadow kerf quality; The rear portion feed direction of above-mentioned twin shaft transmission rotary cutting length shear is provided with bull shear gauge 35, this bull shear gauge 35 has motor and speed reducer (not drawing among the figure) by gear, the motion of rack gear 38 transmission shear gauges, by hydraulic cylinder (not drawing among the figure) lifting scale plate 34, the scale plate of this bull shear gauge has the scale plate (present embodiment is 3) more than 2, its sizing accuracy is obviously than a scale plate hight, and scale speed is also obviously accelerated; The anterior feed direction of above-mentioned twin shaft transmission rotary cutting length shear frame 14 is provided with magnetic force breast roll 28 and pinch roll 26, this pinch roll 26 comprises that one group of fixing fixation side pinch roll and one group can be along the mobile side pinch rolls that laterally moves, can adapt to the different width requirement of steel plate, it can be provided with mobile device 27 along the mobile side pinch roll that laterally moves; Be equipped with spring oil cylinder clamping device 39 (see figure 6)s on the upper tool post 6 of above-mentioned twin shaft transmission rotary cutting length shear and the lower slide 36, its lower slide 36 is provided with lift cylinders 12 and connects the elevating lever 13 of lift cylinders 12 upper ends, so that be used for lifting bottom knife 8 during tool changing; The blade clearance adjusting device of above-mentioned twin shaft transmission rotary cutting length shear comprises motor 16, the worm decelerating machine 17 of being located at frame 14 tops, the wedge 18 (referring to Fig. 3 and Fig. 7) of being located at upper tool post 6 sidepieces, utilize moving up and down of wedge 18 to promote upper tool post 6, just can adjust the gap (it adjusts action shown in Fig. 7 arrow) of cutter 7 and bottom knife 8; The panel 24 of above-mentioned twin shaft transmission rotary cutting length shear is provided with spring push broach device 20, have the steel plate hold down gag 10 of hold-down cylinder 9, have the measuring roller 21 of hydraulic cylinder 22 and the other end of material-pulling device 11, above-mentioned spring push broach device 20 is connected with upper tool post 6, can adjust the gap of upper and lower blade 7 and 8 with wedge 18 corresponding actions of above-mentioned lash adjusting device; It is mobile that the tool changing device 23 of above-mentioned twin shaft transmission rotary cutting length shear sidepiece comprises tool changing dolly and driving hydraulic cylinder 19 thereof, hydraulic cylinder 19 can drive advancing of tool changing dolly, and this tool changing device 23 also is provided with motor and speed reducer (not drawing among the figure).Above-mentioned machine front roller-way 25, steel plate align roller-way 33 behind guide plate (not drawing among the figure), pinch roll 26, servo-actuated magnetic force swing roller-way 32, the machine, be used to align and transport steel plate 37, magnetic force breast roll 28 and servo-actuated magnetic force swing roller-way 32 can prevent to lack the steel plate motion and skid, and transporter 30 is used to transport stub bar and test specimen.
Above-mentioned bull shear gauge scale principle (see Fig. 5 a):
If: L0-is sheared the preceding length of steel plate shearing; L-cutting to length steel plate length; The scale plate washer 1 of L1-bull scale is to blade distance; The scale plate washer 1 of Lm-bull shear gauge is to the blade minimum range; The scale plate washer 2 of L2-bull shear gauge is to blade distance; The scale plate washer 3 of L3-bull shear gauge is to blade distance; L12-scale plate washer 1 is to scale plate washer 2 distances; L23-scale plate washer 2 is to scale plate washer 3 distances.
When 0<L≤Lm, survey long scale with steel plate measuring roller 21;
When Lm<L≤L1+L12/2, with scale plate washer 1 scale;
When L1+L12/2<L≤L2+L23/2, with scale plate washer 2 scales;
When L2+L23/2<L, with scale plate washer 3 scales.
Above-mentioned servo-actuated magnetic force swing roller-way swing principle (seeing Fig. 5 b)
If: P1-shears maximum gravity and the swing roller-way gravity sum of steel plate on swing roller-way b2 length; P3-balance hydraulic cylinder equilibrant force, P3 ≈ 1.2P1b1/b3.When cutter 7 was sheared steel plate downwards, hold down gag 10 compressed steel plate downwards, when cutter 7 is sheared steel plate downwards, to pressing down swing roller-way 32 stressed support 29 to lower swing, promptly hold steel plate shearing.The swing roller-way that uses is at present: when cutter 7 is sheared steel plate downwards, there is certain distance in vertical direction between swing roller-way and the steel plate, promptly swing roller-way 32 no stressed supports 29, shearing the gravity of steel plate on swing roller-way b2 length like this has certain opplied moment to steel plate blade incision, will influence steel plate otch fineness.
Above-mentioned rotary cutting length shear unit is mixed oil pumping system and automatic electrical control system again, can improve shearing quality and shear efficiency effectively.