Dancer on the cutting machine
The present invention relates to a kind of cutting machine dancer, the dancer on particularly a kind of mode cutting machine that moves both vertically.
Before the present invention, it is to set up tension force on the material of slitting rolling that dancer on station formula rolling cutting machine mainly acts on, make the rolling material smooth, smooth, even, thereby guarantee the quality of rolling material, shake, inhomogeneous is arranged slightly, will make the rolling material become waste product, substandard products, cause quality decline, economic loss, cost to increase, and the prestige infringement.Therefore, in order to guarantee the quality of rolling material, key is that the dancer that improves the rolling material must set up tension force on the rolling material, and improves the precision of regulating, and stops the tension force disequilibrium that the small fluctuation of dancer brings and situation that the rolling quality of material that causes descends.Now, normally used dancer, as shown in Figure 1 and Figure 2, bearing 3 ' is installed on the wallboard 1 ', Yi Bian one, dancer link 2 ' two ends are connected with bearing 3 ', dancer 6 ' is connected with dancer link 2 ', and mechanical driving device 4 ' is installed on the end of dancer link 2 ', and potentiometer 5 ' is connected with mechanical driving device 4 ', piston rod 7 ' one end is connected with dancer link 2 ' in the cylinder, and the other end is connected with wallboard 1 '.Its operation principle and mode are to move back and forth drive dancer link 2 ' by piston rod in the cylinder 7 ' to move horizontally, make the rolling material when crossing dancer 6 ', produce tension force, again by the motion of mechanical driving device 4 ', be reflected on the potentiometer 5 ', again the resistance signal is delivered to control system, adjust cylinder by control system according to material characteristic and comprise the flexible of piston rod 7 ', adjust the tension force size.The defective of this mechanism and method is that the mode of setting up dancer tension force is the horizontal direction swing, cylinder must overcome the deadweight of roller earlier, but it is inconsistent with the direction of tension force, cause one to be that precision is high and be difficult to again improve, the 2nd, make entire mechanism very huge, complicated in order to guarantee certain precision, material and processing request to dancer is also very high simultaneously, and cost is increasing manyly virtually, does not meet the economic index and the requirement of industrialized mass production.
Summary of the invention
Purpose of the present invention just is to overcome above-mentioned defective, designs a kind of simple in structure and can increase substantially the dancer mechanism and the device that move up and down of adjusting dancer tension force precision.
Technical scheme of the present invention is:
Dancer on the cutting machine, the dancer two ends are connected on the dancer Connection Block, its major technique is characterised in that piston rod one end is fixedly connected on the wallboard in the cylinder, the piston rod other end is connected with the dancer Connection Block in the cylinder, the dancer two ends are connected on the dancer Connection Block, and slide rheostat one end connects the dancer Connection Block, and the other end is connected on the wallboard, accurate rolling guide-rail pairs vertical fixing is arranged on the wallboard inboard, and the dancer Connection Block moves and is arranged on the precise guide rail pair.
Advantage of the present invention and effect are that dancer adopts the mode that moves both vertically, can not only on the material of slitting rolling, form tension force, and improved precision greatly, simplified entire mechanism simultaneously, reduced cost, dwindled the volume of entire mechanism, also feasible material to dancer requires also to have reduced, and Material Selection has had bigger scope.
Description of drawings
Fig. 1---the dancer structural representation that uses in the prior art.
Fig. 2---be the side view of Fig. 1.
Fig. 3---dancer structural principle schematic diagram of the present invention.
The side view of Fig. 4---Fig. 3.
The specific embodiment
As shown in Figure 3, Figure 4,4 two of precise guide rail pairs are fixedly mounted on respectively on wallboard 3 inboards of both sides; Again dancer Connection Block 5 is installed on the precise guide rail pair 4, can does upper and lower up-and-down movement thereon; The two ends of dancer 2 connect dancer Connection Block 5 respectively; An end of piston rod 1 is connected with dancer Connection Block 5 in the cylinder, and the other end is fixedlyed connected with wallboard 3; One end of slide rheostat 6 is connected with dancer Connection Block 5, and the other end is fixedlyed connected with wallboard 3.
During work, cylinder comprises that the reciprocating motion of piston rod 1 drives dancer Connection Block 5 and do upper and lower motion on precise guide rail pair 4, because dancer 2 links together with dancer Connection Block 5, therefore also driving dancer 2 also does upper and lower reciprocating motion, make the material of rolling on dancer 2, produce tension force, consistent with the upper and lower direction of motion of dancer 2; Simultaneously, dancer Connection Block 5 also drives slide rheostat 6 and does upper and lower reciprocating motion, thereby making the change in resistance of slide rheostat 6 in time be delivered to control system (does not draw in this example, omit) in, control system is in time adjusted the flexible of piston rod 1 in the cylinder according to the characteristic of material, thereby reaches the purpose of control material tension force.
In order to control material tension force better, improve precision, make atomic little variation can both in time obtain adjusting, not only on the dancer Connection Block 5 at dancer 2 two ends, unidirectional cylinder is set and comprises piston rod 1, and comprise that at each cylinder on another direction on opposite of piston rod 1 same cylinder being set also comprises piston rod 1, two-way control, thereby greatly improve precision.
Dancer Connection Block 5 among the present invention is simplified greatly than the structure of the dancer link in the middle of the prior art, and volume also dwindles greatly, and function is but strengthened.