CN104722607A - Leveling machine - Google Patents

Abstract

The invention relates to a leveling machine. The leveling machine is provided with a base provided with a lower idler wheel set and a first support fixed to the base. A second support is fixedly spliced between the first support and the base. Idler wheel supports provided with an upper idler wheel set are arranged between the first support and the second support. An adjusting device for controlling the interval between the upper idler wheel set and the lower idler wheel set by adjusting the positions of the idler wheel supports is fixed between the idler wheel supports. An eccentric volume measuring device is adopted, through the simple and reasonable design, the eccentric volume generated by rotation of an eccentric shaft is converted into linear displacement, and the phenomenon that when an encoder is adopted for measuring the eccentric volume, due to machine vibration, reading jumps and is instable in the prior art is effectively avoided.

Description

a leveling machine

technical field

The invention relates to a leveling mechanism, in particular to a leveling machine.

Background technique

With the rapid development of the sheet metal industry, punching mesh panels, electrical cabinets, computer body processing, saw blade production, automotive stamping parts, rolling stock, construction machinery industry, textile machinery and other industries, the quality requirements for metal sheets Also higher and higher, sheet metal workpieces can degrade the quality of the final product if they have an uneven surface. The leveling machine is to squeeze the uneven metal plate through the upper and lower rolls to squeeze the strip or plate of a certain thickness, so as to achieve the effect of leveling. The leveler is a powerful new equipment for high-speed stamping work, which can improve the quality and quantity of press products. It is impossible to produce good punching parts after the coil is leveled to eliminate stress. Only by leveling the coil and eliminating stress can it be achieved. After being leveled by a leveling machine, the material can be corrected to be curved downward or flat.

The leveling machine provided by the prior art includes: a bracket, an upper roller group, a lower roller group, and a power cylinder fixed above the bracket, the lower roller group is arranged at the bottom of the bracket, and the upper roller group is vertically fixedly connected to the power cylinder. The power cylinder directly adjusts the distance between the upper and lower roller sets, so as to meet the requirements for processing materials with different thicknesses. However, there are relatively large defects in the existing technology. The distance between the upper and lower roller groups is directly adjusted by the power cylinder, that is to say: the distance between the front and rear of the upper and lower roller groups is certain. It is difficult to enter between the upper and lower roller groups, and at the same time, the front and rear of the upper roller group are not connected by an absolute rigid body, which will cause uneven force on the metal plate after entering the leveling machine.

Contents of the invention

The purpose of the present invention is to overcome the defects of the prior art and provide a leveling machine, which can conveniently and quickly adjust the distance between the front and rear ends of the upper and lower roller groups to be at different distances, and at the same time, can make the metal plate enter the leveling machine and be evenly extrusion force.

In order to achieve the above object, the present invention provides a leveling machine, comprising a base provided with a lower roller set and a first bracket fixed on the base, a second bracket is spliced and fixed between the first bracket and the base, the A roller bracket with an upper roller group is arranged between the first bracket and the second bracket, and an adjustment device is fixed between the roller brackets, and the adjustment device controls the upper roller group and the lower roller group by adjusting the position of the roller bracket spacing.

Preferably, the adjusting device includes: the adjusting device includes: a first eccentric shaft and a second eccentric shaft whose centerlines are located on the same plane.

Further, the adjustment device further includes: a third eccentric shaft located above the second eccentric shaft and fixed on the roller bracket.

Further, the second eccentric shaft is fixedly connected to the third eccentric shaft through a fixing piece.

Further, an adjustment cylinder is fixed above the first bracket, and the third eccentric shaft is bolted and fixed on the adjustment cylinder by bolts. Further, the two ends of the first eccentric shaft and the second eccentric shaft are bearing-connected to the first bracket and the second bracket respectively.

Further, the first bracket is fixed with a first eccentricity measurement device that converts the eccentricity generated by the rotation of the first eccentric shaft into a linear displacement, and the eccentricity generated by the rotation of the second eccentric shaft is fixed on the second bracket. The second eccentricity measurement device is converted into linear displacement. The lower ends of the first eccentricity measurement device and the second eccentricity measurement device are respectively in contact with the two ends of the first eccentric shaft and the second eccentric shaft.

Further, the eccentricity measurement device includes: the first eccentricity measurement device or the second eccentricity measurement device comprises: a box body, a spring arranged inside the box body, an induction block fixed on the spring, fixed on The displacement sensor corresponding to the induction block inside the box is inserted into the spring and the two ends extend out of the movable rod of the box.

Further, stoppers are provided on the movable rods at both ends of the spring to restrict the spring from protruding out of the box.

Further, the lower end of the movable rod is connected with a rolling bearing, and the rolling bearing is in contact with the side of the first eccentric shaft or the second eccentric shaft, and the movable rod performs linear motion repeatedly with the rotation of the first eccentric shaft or the second eccentric shaft.

Beneficial effects of the present invention: 1. The present invention controls the upper roller group and the roller bracket by adjusting the position of the roller bracket through the first eccentric shaft and the second eccentric shaft whose center line is located on the same plane. The distance between the lower roller group, the centerlines of the first eccentric shaft and the second eccentric shaft are located in the same plane, and there is no related control between them. By controlling the difference in the eccentricity of the two eccentric shafts, the upper and lower rollers can be adjusted conveniently and quickly The distances between the front and rear ends of the group are at different distances, which can complete the processing of materials with different thicknesses. When the leveling machine of the present invention is working, the pressure of the roller support on each individual roller in the upper roller group is the same, which will not cause local distortion of the material due to uneven force, and can be better Level the material.

2. The present invention adopts a simple and reasonable design of the eccentricity measurement device, which converts the eccentricity generated by the rotation of the eccentric shaft into a linear displacement, effectively avoiding the vibration of the machine when the encoder is used to measure the eccentricity in the prior art. unstable phenomenon.

Description of drawings

Fig. 1 is the complete machine schematic diagram of the present invention;

Fig. 2 is a schematic diagram of the roller adjustment structure of the present invention;

Fig. 3 is a schematic diagram of a roller bracket and connecting parts of the present invention;

Fig. 4 is a schematic diagram of the eccentric shaft upward adjustment roller bracket of the present invention;

Fig. 5 is an exploded schematic view of the eccentricity measuring device of the present invention;

Fig. 6 is a schematic diagram of the use of the eccentricity measuring device of the present invention in cooperation with the eccentric shaft;

Fig. 7 is an overall schematic diagram of the eccentricity measuring device of the present invention.

Explanation of reference signs: 1. Base; 11. Lower roller group; 2. First bracket; 21. Horizontal plate; 3. Second bracket; 4. Roller bracket; 41. Upper roller group; 42. First eccentric shaft; 43. Second eccentric shaft; 44. Third eccentric shaft; 45. Connecting sleeve; 5. Adjusting cylinder; 51. Piston rod; 6. First eccentricity measurement device; 61. Box body; 62. Spring; 63. Induction block; 64, displacement sensor; 65, movable rod; 66, rolling bearing; 67, spacer; 7, second eccentricity measurement device; 8, drive motor.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, but not to limit the protection scope of the present invention.

A leveling machine as shown in Figures 1 to 4, including a base 1 provided with a lower roller group 11 and a first bracket 2 fixed on the base 1, the first bracket 2 and the base 1 are spliced and fixed with a first Two brackets 3, the cavity formed between the first bracket 2 and the second bracket 3 is provided with a roller bracket 4 with an upper roller group 41, and the roller bracket 4 is fixed between the roller brackets 4 by adjusting the roller bracket 4. position to control the adjustment device for the spacing between the upper roller set 41 and the lower roller set 11, the adjustment device includes: the first eccentric shaft 42 and the second eccentric shaft 43 whose centerlines are on the same plane, and the first eccentric shaft 43 located above the second eccentric shaft 43 The third eccentric shaft 44 fixed on the roller bracket 4, the second eccentric shaft 43 and the third eccentric shaft 44 are fixedly connected by a fixing piece, the fixing piece is a connecting sleeve 45, and the top of the first bracket 2 is provided with Horizontal plate 21, above described horizontal plate 21 is fixed with adjustment cylinder 5, and adjustment cylinder 5 is a kind of in the middle of hydraulic cylinder or air cylinder, and described adjustment cylinder 5 stretches out piston rod 51 laterally along the direction of roller bracket 4, and the third The eccentric shaft 44 is bolted and fixed on the piston rod 51 of the adjusting cylinder 5, and the two ends of the first eccentric shaft 42 and the second eccentric shaft 43 are respectively connected to the bearings, and are connected to the first eccentric shaft 42 and the second eccentric shaft. 43 corresponding to the first bracket 2 and the second bracket 3, the first eccentric shaft 42 and the second eccentric shaft 43 pass through the roller bracket 4, and are connected with the roller bracket 4 through bearings, the first eccentric shaft 42 The drive motor 8 is connected to the two ends of the second eccentric shaft 43 respectively, the bearings at both ends of the third eccentric shaft 44 are connected to the roller bracket 4, and the first eccentric shaft 42 and the second eccentric shaft 43 are connected to each other. On the support 2 and the second support 3, the first eccentricity measurement device 6 and the second eccentricity measurement device 7 that convert the eccentricity generated by the rotation of the eccentric shaft into a linear displacement are respectively fixed, and the first eccentricity measurement device 6 is fixed on the horizontal plate 21, and the second eccentricity measurement device 7 is fixed on the second bracket 3, the lower ends of the first eccentricity measurement device 6 and the second eccentricity measurement device 7 are respectively connected with the first eccentric shaft 42, the second Both ends of the two eccentric shafts 43 are in contact.

As shown in Figures 5 to 7, the first eccentricity measuring device 6 includes: a box body 61, a spring 62 arranged inside the box body 61, an induction block 63 set and fixed on the spring 62, and fixed inside the box body 61 A displacement sensor 64 corresponding to the sensing block 63, the displacement sensor 64 is one of a linear displacement sensor, a Hall type displacement sensor, and a photoelectric displacement sensor, and a movable rod 65 is inserted in the spring 62, and the movable rod 65 is inserted into the spring 62. The rod 65 is inserted into the spring 62 and the two ends extend out of the box body 61, the induction block 63 is set and fixed in the middle of the spring 62, the movable rod 65 runs through the whole spring 62, and the movable rod 65 at the two ends of the spring 62 is provided with stoppers , the limit spring 62 stretches out of the box body 61, the stopper is a gasket 67, the lower end of the movable rod 65 is connected with a rolling bearing 66, the rolling bearing 66 is in contact with the side of the first eccentric shaft 42, and the movable rod 65 follows the first eccentric shaft The rotation of 42 does linear motion repeatedly.

The structure of the second eccentricity measurement device 7 is the same as that of the first eccentricity measurement device 6 , and will not be repeated here.

When the leveling machine of the present invention is in use, after setting the distance between the upper and lower rollers according to the thickness of the material to be processed, the drive motor 8 connected to the first eccentric shaft 42 rotates to drive the first eccentric shaft 42 to rotate synchronously , because the eccentric shaft has a far-axis end and a proximal end, so when the eccentric shaft rotates, when the far-axis end and the proximal end are in different positions, the roller bracket 4 connected to the eccentric shaft through a bearing can be lifted up or pressed down, when After the first eccentric shaft 42 rotates to a suitable position, the second eccentric shaft 43 is adjusted to a suitable position in the same way. When the second eccentric shaft 43 is adjusted, the piston rod 51 on the adjustment cylinder 5 connected with the third eccentric shaft 44 follows The up and down movement of the roller bracket 4 is done the telescopic movement back and forth, so that the whole roller bracket 4 is fixed in a suitable position, so far, the adjustment process is finished, and the screed can start to work. In the process of adjusting the eccentric shaft, the rolling bearing 66 at the lower end of the movable rod 65 of the eccentric amount measuring device in contact with the side of one end of the eccentric shaft rotates synchronously on the side of the eccentric shaft with the rotation of the eccentric shaft, so that the movable rod 65 rotates with the rotation of the eccentric shaft Repeated linear motion, the movable rod 65 compresses or releases the spring 62 inside the box body 61 during the forward and backward movement, so that the position of the sensing block 63 set on the spring 62 changes, and the position change of the sensing block 63 is captured by the displacement sensor 64 , the displacement sensor 64 measures the displacement of the sensing block 63 according to the change of the position of the sensing block 63, and sends the displacement to the main control system, and the main control system obtains the specific distance between the upper roller set 41 and the lower roller set 11.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore: all equivalent transformations done with the structure, shape and principle of the present invention should be covered by the protection of the present invention. within range.

Claims (10)

1. an evener, comprise the base being provided with bottom roller group and the first support be fixed on base, it is characterized in that: splice between described first support and base and be fixed with the second support, the rolling wheel support with upper roller group is provided with between described first support and the second support, be fixed with adjusting device between described rolling wheel support, described adjusting device controls upper roller group and bottom roller group spacing by the position of adjustment roll wheel support.

2. evener according to claim 1, it is characterized in that, described adjusting device comprises: the first eccentric shaft that center line is in the same plane and the second eccentric shaft.

3. evener according to claim 2, it is characterized in that, described adjusting device also comprises: to be positioned at above the second eccentric shaft and the three eccentricity axle be fixed on rolling wheel support.

4. evener according to claim 3, is characterized in that: described second eccentric shaft is fixedly connected with by fixture with three eccentricity axle.

5. evener according to claim 4, is characterized in that: be fixed with adjustment cylinder above described first support, and described three eccentricity axle is fixed on by bolted-on and regulates on cylinder.

6. evener according to claim 2, is characterized in that: the two ends of described first eccentric shaft and the second eccentric shaft respectively bearing are connected on the first support, the second support.

7. evener according to claim 6, it is characterized in that: described first support is fixed with the first offset measurement mechanism offset that the first eccentric shaft turns produces being converted into straight-line displacement amount, described second support is fixed with the offset that the second eccentric shaft turns produces is converted into the second offset measurement mechanism of straight-line displacement amount, described first offset measurement mechanism and the second offset measurement mechanism lower end respectively with two end in contact of the first eccentric shaft, the second eccentric shaft.

8. evener according to claim 7, it is characterized in that, described first offset measurement mechanism or the second offset measurement mechanism comprise: box body, be arranged on the spring of tray interior, be set with the sensor block be fixed on spring, be fixed on the displacement transducer that tray interior is corresponding with sensor block, insert the motion bar that box body is stretched out in spring and two ends.

9. evener according to claim 8, is characterized in that: the motion bar of described both ends of the spring is provided with block piece, stretches out box body with restraining spring.

10. evener according to claim 8, it is characterized in that: described motion bar lower end is connected with rolling bearing, the contacts side surfaces of rolling bearing and the first eccentric shaft or the second eccentric shaft, motion bar does rectilinear motion repeatedly with the rotation of the first eccentric shaft or the second eccentric shaft.