KR0181191B1 - Device for automatically adjusting the gap of shearing machine - Google Patents

Abstract

The present invention relates to a gap automatic adjustment device of the shearing machine, and the gap between the fixed cutting blade of the table and the movable cutting blade of the movable swinging body must be manually operated every time according to the thickness of the steel plate. It is intended to solve the conventional problem of difficult adjustment due to the adjustment.

The present invention for solving this problem, by forming a rack on the setting plate of the setting cylinder to install the gear shaft to be engaged with the sector gear of the rack and the hinge pin, respectively, the appropriate gap is automatically maintained according to the thickness of the steel sheet to be cut Therefore, to improve the cutting quality and to prevent damage to the cutting blade.

Description

Charing machine automatic clearance adjustment

The present invention relates to a shearing machine, and more particularly, according to the sheet thickness of the shearing machine that can maintain the appropriate gap automatically according to the improvement of the cutting quality and the damage of the cutting blade It relates to a gap automatic adjustment device.

Generally, a shearing machine is moved about the eccentric hinge shaft 14 of the body 12 by a hydraulic cylinder 10 as shown in FIGS. 1 and 2 and 3. The sieve 16 is pivotally mounted up and down, and the movable cutting blade 18 is attached to the lower end of the movable pivot 16.

In addition, a table 20 having a fixed cutting blade 19 is mounted in front of the body 12, and a body plate 22 placed on the table 20 is set on the body 12 on the table 20. The setting cylinder 24 is installed to the end, and the setting plate 28 is mounted at the end of the piston rod 26 of the setting cylinder 24, and the return cylinder is set between the setting cylinder 24 and the setting plate 28. The spring 30 is connected.

In addition, a hinge (hole 16) is formed in the movable pivot (16) rotatably coupled to the eccentric hinge shaft (14), and in the eccentric hinge shaft (14) along an inner diameter of the hinge hole (16a). The eccentric cam 14a which slides and moves the movable pivot 16 in the horizontal direction is integrally provided, and the table 20 is rotated by the eccentric cam 14a according to the rotation of the eccentric hinge shaft 14. The gap c of the fixed cutting blade 19 and the movable cutting 18 of the movable swing structure 16 is adjusted.

In addition, a sector gear 32 is integrally mounted to the eccentric hinge shaft 14, and a pinion 36 having a lever 34 is engaged with the sector gear 32.

In the conventional shearing machine constructed as described above, when the lever 34 is rotated according to the thickness of the iron plate 22, the sector gear 32 meshed with the pinion 46 is rotated and the sector gear 32 is rotated. As the eccentric hinge shaft 14 is rotated, the eccentric cam 14a is rotated, and the movable pivot 16 is moved a predetermined distance in the horizontal direction as the eccentric cam 14a is rotated.

Therefore, the gap c between the fixed cutting blade 19 and the movable cutting blade 18 of the table 20 can be adjusted to the thickness of the iron plate 22.

However, in the conventional shearing machine constructed as described above, the fixed cutting blade 19 of the table 20 and the movable cutting blade 16 of the movable swing structure 16 at each operation according to the thickness of the iron plate 22. It was difficult to precisely adjust the gap c manually by manually adjusting the gap c manually.

In particular, when the shearing work in the state without the gap adjustment by the operator's mistake, there is a problem that excessive force is applied to the equipment resulting in damage to the equipment.

The present invention has been researched and developed in order to solve the conventional problems as described above, an object of the present invention is to form a rack on the setting plate of the setting cylinder to the gear shaft to be engaged with the sector gear of the rack and the eccentric hinge shaft respectively. By providing the appropriate gap is automatically maintained according to the thickness of the steel sheet to be cut, thereby providing a gap automatic adjustment device of the shearing machine to improve the cutting quality and prevent damage to the cutting edge.

1 is a side view of the shearing machine's clearance adjustment device for the prior art;

FIG. 2 is a perspective view of FIG.

3 is a cross-sectional view showing a setting portion of the iron plate.

Figure 4 is a side view of the gap automatic adjustment device of the shearing machine according to the present invention.

(A) (b) of FIG. 5 is a front view and a side view which show the setting part of an iron plate.

6 is a detailed view showing an eccentric hinge shaft portion of the movable swing structure.

* Explanation of symbols for main parts of the drawings

10: hydraulic cylinder 12: body

14: eccentric hinge axis 14a: eccentric cam

16: movable swing structure 16a: hinge hole

18: Operation cutting blade 19: Fixed cutting blade

20: table 22: iron plate

24: setting cylinder 26: piston rod

28: setting plate 30: return spring

32: sector gear 34: lever

36,42: pinion 38: rack

40: worm 44: gear shaft

c: gap

The present invention for achieving the above object, the movable pivot is installed so as to pivot up and down about the eccentric hinge axis of the body by a hydraulic cylinder is mounted on the lower end of the movable pivot is fixed to the front of the body A table with a cutting blade is mounted and the body on the table is equipped with a setting plate at the end of the piston rod of the setting cylinder for setting the steel plate on the table, and a tension coil spring connected between the cylinder and the setting plate. In the machine, an automatic gap adjusting means is provided so that the gap between the fixed cutting edge of the table and the movable cutting edge of the movable swing body is automatically appropriately adjusted according to the thickness of the steel plate placed on the table.

Hereinafter, the gap automatic adjustment device of the shearing machine according to the present invention will be described in detail according to the accompanying drawings of a preferred embodiment.

4 to 6 are views for explaining the automatic gap adjustment device of the shearing machine according to the present invention.

Here, by the hydraulic cylinder 10, the movable swing structure 16 is pivotally installed up and down about the eccentric hinge shaft 14 of the body 12, and is movable at the lower end of the movable swing structure 16. The cutting blade 18 is attached.

In front of the body 12 is mounted a table 20 having a fixed cutting edge 19 and the body 12 above the table 20 for setting the iron plate 22 placed on the table 20. A setting plate 28 is mounted at the end of the piston rod 26 of the setting cylinder 24, and a return spring 30 is connected between the setting cylinder 24 and the setting plate 28.

The eccentric hinge pin 14 of the movable pivot 16 is the eccentric hinge shaft 14 is rotated so that the clearance c of the fixed cutting blade 19 and the movable cutting blade 18 of the table 20 is adjusted. As a result, they are eccentric by a predetermined amount, and a sector gear 32 is mounted at one end thereof.

A gear shaft having a worm 40 and a pinion 42 so as to be engaged with the sector gear 32 and the rack 38, the rack 38 being mounted to the setting cylinder 28 on the setting cylinder 24 side. 44 is provided on the side of the body 12.

The present invention configured as described above is intended to cut in a state where the setting plate 28 mounted on the piston rod 26 of the setting cylinder 24 by the return spring 30 is raised upward by the stroke of the setting cylinder 24. The iron plate 22 is placed on the table 20.

In such a state, when the foot switch (not shown) is pressed on, the piston rod 26 of the setting cylinder 24 is lowered as the fluid enters the setting cylinder 24, and thus the table 20 is moved on the table 20. The iron plate 22 is to be set.

At this time, the pinion 42 of the gear shaft 44 meshed with the rack 38 of the setting plate 28 is rotated, and at the same time, the eccentric hinge shaft as the worm 40 of the gear shaft 44 is rotated. The sector gear 32 of 14 is rotated.

When the eccentric hinge shaft 14 is rotated, the movable rotating body 16 is moved in the horizontal direction, whereby the gap c between the fixed cutting blade 19 and the movable cutting blade 18 of the table 20 is iron plate. It is suitably adjusted according to the thickness of (22).

For example, in the case of cutting a thick steel plate, the stroke of the piston rod 26 of the setting cylinder 24 is shortened, and accordingly, the gear shaft 44 has a smaller angle of rotation of the worm 40, thereby fixing the cutting edge of the table 20. The gap c between 19 and the movable cutting blade 18 becomes large.

Therefore, the shearing automatic adjustment device according to the present invention has the pinion 42 of the gear shaft 44 and the pinion 42 of the gear shaft 44 of the rack 38 of the setting plate 28 and the sector gear 32 of the eccentric hinge shaft 14. As the worms 40 are engaged with each other, an appropriate gap is automatically adjusted according to the thickness of the steel sheet to be cut, thereby improving the cutting quality and preventing damage to the cutting blade, and as a result, does not apply excessive force to the equipment. Will be.

According to the gap automatic adjustment device of the shearing machine according to the present invention as described above, by forming a rack on the setting plate of the setting cylinder, the iron plate to be cut by installing the gear shaft to be engaged with the sector gear of the rack and the hinge pin, respectively Appropriate clearance is automatically maintained according to the thickness, thereby improving the cutting quality and preventing damage to the cutting edge.

Claims (2)

A movable cylinder is pivotally installed up and down about the eccentric hinge axis of the body by a hydraulic cylinder, and a movable cutting blade is mounted on the lower end of the movable pivot, and a table having a fixed cutting blade is mounted on the front of the body. The upper body is equipped with a setting plate at the end of the piston rod of the setting cylinder for setting the iron plate to be placed on the table, and a tensioning coil spring is connected between the cylinder and the setting plate. An automatic gap adjusting device of a shearing machine equipped with an automatic gap adjusting means for automatically adjusting the gap between the fixed cutting blade of the table and the movable cutting blade of the movable swing body according to the thickness of the steel sheet. The gear shaft according to claim 1, wherein the automatic clearance adjusting means includes a gear shaft having a rack mounted on the setting plate of the piston set on the setting cylinder side and a pinion and a worm which are engaged with the sector gear of the eccentric hinge shaft and the rack of the setting plate. The gap automatic adjustment device of the shearing machine installed on the body.