SU504583A1 - Correct press - Google Patents

Description

The correct press is known, containing an upper slider mounted on the base and a lower one carrying a comb with the correct element, as well as supports for mounting the product to be straightened.

The main disadvantage of the known process is the low quality of editing.

The proposed correct press for the purpose of improving the quality of editing is equipped with a wedge-shaped pressure element built into the lower slider and kinematically connected with an additional electric motor drive through the rod, as well as a circular cam installed in the rod and associated end switches limiting the wedge stroke, the supports are mounted for movement in the bed guides.

FIG. Figure 1 shows schematically the kinematic diagram of a press with the correct element; in fig. 2 - the correct element on an enlarged scale with a partial section.

The press consists of a frame 1 (Fig. 1), a drive 2, a crank shaft 3, an upper 4 and a lower 5 sliders, with an included comb 6. The correct element 7 is embedded in the lower slider. with the surface of the lower slider 5 associated with the rod 9 (Fig. 2), interacting with the screw pair 10 of the gearbox 11. The rotation of the gear 11 receives from the electric motor 12. The rod 9 is rigidly connected to the rod 13 carrying the circular cam 14 interacting with rollers 15 limit switches 16. Limit switches captured by the trough-shaped housing 17 in different planes. Trough-shaped housing is connected to the gear 11, which is mounted on the lower slide of the press. On the table of the press bed 1, the supports 18 are installed, which have the ability to move in and out. On the supports during the editing, the workpiece 19 is laid with a curvature 19

element 7 of the lower slide 5 of the press. The ruler 21 serves to determine the amount of adjustment for lowering the pressure member. The amount of pressure lowering the pressure member depends on the curvature of the workpiece, which is determined by

by the operator. Position 22 indicates the spring return the correct element to its original position, position 23 - drive rollers; position 24 - the motor drive rollers, and the position 25 - their gear. Position 26 shows the drive of the comb 6, and position 27 shows the power cylinder of the drive of correct supports.

The press works as follows. The rotation obtained by the crank shaft

3 from the actuator 2, is continuously transmitted to the upper slider 4. For the actuator of the lower slider 5, the comb drive 26 is activated. The protrusions of the teeth of the upper creeper and the comb are aligned and the translational movement from the upper slider is transmitted to the lower slider, the slider moves down and with it moves the downward element 7 with the pressure member 20. When moving down, the pressure member presses on the workpiece 19 and the workpiece is straightened . To the next position, the workpiece is fed by the drive rollers 23. Since the curvature of the workpiece is different in different places, the stroke of the pressure member must also be different. This is achieved by moving the wedge 8 of the correct element 7 forward, which is carried out from the electric motor 12 through the gearbox I. Together with the gears of the gearbox, the nut of the screw pair 10 also rotates, transforming its rotational movement into translational movement of the rod 9, rigidly connected with the wedge 8. Value the stroke of the wedge is limited by the limit switches 16. When the start button of the electric motor is pressed (not shown), the wedge moves forward, moving both the rod 9 with the rod 13 and the circular cam 14 interacting with the pressing roles 15 limit switches 16. With a slight curvature, the operator presses the button for turning on the electric motor of drive 2 once. The screw, moving progressively forward, moves the circular cam 14. When the circular cam meets the pressure roller of the limit switch, the electrical circuit is broken and the electric motor stops. To further move the wedge 8, you must then press the start button of the wedge drive motor. The wedge moves, and moves the circular cam to meet the next limit switch. That is, with a slight curvature, the operator presses the power button of the wedge drive motor once, for a larger value, two or more times. The accuracy of the adjustment value of the lowering of the pressure member is dependent on the angle of the pressure wedge and the number of limit switches. During the return stroke of a regular element with a pressure member, the mechanism for reversing its drive electric motor (not shown in the drawing) is turned on.

In this case, the motor is switched on automatically when a circular cam meets a pressure switch of the limit switch, specifically intended for this purpose. Returning the correct item

Springs 22 are brought to the initial position. For feeding the workpiece 19, drive rollers 23 are used, which are rotated by the electric motor 24 through the gearbox 25. Input and output of the correct supports from the dressing area and into

the dressing zone is carried out by the cylinder 27.

Claims (2)

1. A regular press containing an upper slider mounted on a frame and a lower one carrying a comb with the correct element, as well as supports for mounting the product to be edited, characterized in that, in order to improve the quality of editing, it is equipped with a wedge-shaped pressure element built into the lower slider and kinematically connected with an additional electric motor drive through the rod, as well as a circular cam installed in the rod and limit switches interacting with it, which limit the course of the wedge. 2. The press of claim 1, wherein that the supports are mounted for movement in the bed guides.