KR20030028179A - Strip cutting apparatus with running and stop cutting function - Google Patents

Abstract

PURPOSE: An upper frame and a lower frame are moved in a different route to correspond to the moving state and stopping state of a steel plate, thereby preventing cutting fault and damage to the lower and upper frame. CONSTITUTION: An upper frame(10) is installed in upper part of a sliding support(11). A lower frame(20) is installed in a sliding groove(11a) of the sliding support slidingly. A cam shaft(30) is rotated by a driving motor(32). An upper frame supporting arm(13) connects the upper frame with the cam shaft by a bearing block(35). A lower frame supporting arm(23) connects the lower frame with the cam shaft by a driving cam(34). Another cam shaft(40) is arranged with the cam shaft(30) to be rotated. A connection arm(44) connects the cam shaft(40) with the lower frame. A driving motor(46) is connected with the cam shaft(40) by a clutch.

Description

Sheet cutting apparatus with running and stop cutting function {Strip cutting apparatus with running and stop cutting function}

The present invention relates to a steel sheet cutting device, and more particularly, to a steel sheet cutting device having a progress and stop cutting function that can be operated in a state in which the steel sheet is in progress and the steel sheet is stopped.

Generally, a steel sheet cutting device having a function of cutting a steel sheet is used in various places in a steel mill, and FIG. 1 shows a steel sheet cutting device 92 provided on the downstream side of the oiling apparatus 91.

That is, the steel sheet S discharged from the oiling apparatus 91 is wound in the winding machine 94 through the steel sheet cutting device 92 through the direction change roll 93 to be produced as a coil-shaped product, and the steel sheet cutting The apparatus 92 is operated at a necessary time to cut the steel sheet S.

And, the conventional steel sheet cutting device 92 consisting of a top (92a) located in the upper portion of the steel sheet (S) and a lower road (92b) located in the lower bar is made to operate normally in the state where the steel sheet (S) proceeds, It is configured to rotate along the predetermined path in consideration of the steel sheet (S) proceeding the upper road (92a) and the lower road (92b).

However, it is necessary to cut the steel sheet in a state in which the progress of the steel sheet is stopped. In this case, when the steel sheet is cut by the conventional steel sheet cutting device 92, the upper road 92a and the lower road (which are driven along the rotation path) The phenomenon that the steel sheet S stopped by 92b) is cut while being pulled toward the traveling direction of the steel sheet S occurs, whereby a defective portion in the shape of a hatched portion is formed in the cutout portion of the steel sheet S, whereby the steel sheet S The problem was to damage the components of the plant in contact with the plant.

In addition, the top coat 92a and the bottom coat 92b are damaged while the steel sheet S is cut, which causes a problem that requires considerable time and effort to repair the steel sheet cutting device 92.

The present invention is to solve such a conventional problem, the steel sheet by cutting the steel sheet while the upper and lower roads are moved to separate paths so as to correspond to each of when the steel sheet is in progress and when the steel sheet is in a stopped state An object of the present invention is to provide a steel sheet cutting device having a progress and stop cutting function to prevent a defective portion of the cut and damage of the upper and lower roads.

1 is a schematic configuration diagram showing an installation state of a general steel sheet cutting device;

2 is a partially exploded perspective view showing a steel sheet cutting device having a forward and stop cutting function according to the present invention;

3 is a perspective view of main parts of the present invention.

※ Explanation of symbols about main part of drawing ※

10: top coat 11: sliding support

11a: Sliding groove 13: Top support arm

20: undercoat 21: underpass support

23: under support arm 30: camshaft

32: drive motor 40: camshaft

44: connecting arm 46: drive motor

47a: guide protrusion 52: shaft guide

52a: guide groove 54: bearing block

56: rod 57: cylinder

58, 59: clamp

As a technical configuration for achieving the above object, the present invention is a top shaft mounted on the upper side of the sliding support, the lower side slidably mounted in the sliding groove of the sliding support, and the cam shaft rotated by the drive motor and And a top support arm for connecting the top and cam shafts to each other via a bearing block, and a bottom support arm for connecting the bottom and cam shafts to each other via a disc shaped undercarriage cam formed on the cam shaft. A cam shaft disposed to be parallel to and rotatably installed, a connecting arm connecting the cam shaft to the lower road, and a driving motor connected to the cam shaft via a clutch; By providing a device.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a schematic configuration diagram showing a steel sheet cutting device having a forward and stop cutting function according to the present invention as a whole, a pair of sliding support 11 having a sliding groove (11a) is formed long in the longitudinal direction and open at the bottom ) Is provided.

The top 10 is positioned between the sliding supports 11, and both ends of the top 10 are separately fixed to the upper ends of the sliding supports 11 or slidably mounted to the sliding grooves 11a. It may be fixed to the support of the. In addition, the connecting member 12 is fixed to the upper end of the sliding support 11, respectively, and the connecting member 12 is fixed to the upper end of the upper support arm 13, respectively.

The lower road 20 is positioned lower than the upper road 10 between the sliding support 11, and both ends of the lower road 20 are fixed to the upper end of the lower road support 21, respectively, and the lower road support 21 Each of the) is slidably fitted into the sliding groove (11a) of the sliding support 11, the bearing block 22 is fixed to the lower end of the lower support 21, respectively, the bearing block 22 Silver is fixedly installed on the upper end of the lower support arm 23, respectively.

Lower ends of the upper and lower support arms 13 and 23 are connected to the cam shaft 30 which is rotationally driven by the driving motor 32. The cam shaft 30 has a predetermined length in the center thereof and is eccentric with respect to the rotation center. The cam shaft 30 has a shape, and cams 31 having the same shape and size are formed at both ends of the eccentric portion, and the cam 31 is formed in a disc shape and the cam shaft is located at an eccentric predetermined position. The cam 30 is penetrated, and the cam 31 is rotatably fitted to the cam support 33 mounted on the equipment floor or the equipment frame. Of course, the cam support 33 has a circular through hole corresponding to the cam 31 and accommodates the cam support 33 rotatably in the through hole. Then, the cam support 33 is mounted on the plant floor or plant frame 39.

In addition, the camshaft 30 has a plurality of lower tool-dong cam 34 is fixedly installed between the cam 31, the lower tool-dong cam 34 is formed in a disc shape and the chamfer 30 in a predetermined position eccentric ) Is penetrated, the lower tool cam (34) is rotated and lowered at the time when the cam shaft 30 is rotated up and the lower tool cam (34) is rotated as the cam shaft 30 is rotated and lowered Is set to be.

A lower end of the upper support arm 13 is rotatably connected to the eccentric portion of the cam shaft 30 via a bearing block 35, and the lower tool support cam 23 is connected to the lower tool support cam 34. The lower end is rotatably connected via the cam support 36, the cam support 36 to support the lower tool cam (34) is the same as the cam support 33 to support the cam (31) It has a circular through hole corresponding to the undercarriage cam (34) and accommodates the cam support (36) rotatably in this through hole.

Further, another cam shaft 40 is provided, the cam shaft 40 is disposed in a position parallel to the cam shaft 30, the cam shaft 40 has a shape in which a predetermined length in the center portion is eccentric with respect to the rotation center Both ends of the camshaft 40, that is, the uneccentric portions, are rotatably supported by the bearing block 42, and the bearing block 42 is mounted on the plant floor or the plant frame 39.

Eccentric portions of the camshafts 30 and 40 are rotatably connected to both ends of the connecting arm 44 via bearing blocks, respectively.

In addition, the camshaft 40 is configured to receive a rotational driving force as necessary by being connected to the drive motor 46 via a clutch, the structure of such a clutch adopts any one of a variety of known in the art Just do it. However, in the present invention, such an example is provided, and the guide protrusion 47a extending in the longitudinal direction is integrally formed at the distal end of the rotation shaft 47 of the drive motor 46, and the guide protrusion 47a is axially induced. It is slidably fitted to one side of the guide groove (52a) extending in the longitudinal direction inside the guide 52, the axial guide guide 52 is supported by the bearing block 54 to enable axial rotation, The cover 55 of the bearing block 54 is movably connected in the longitudinal direction of the rotation shaft 47 by the cylinder 57 via the rod 56. In addition, a first clamp 58 is fixedly installed at the other side of the shaft guide guide 52, and a second clamp 59 corresponding to the first clamp 58 is fixedly installed at one end of the cam shaft 40. do.

That is, the bearing block 54 and the shaft guide guide 52 supported by the bearing block 54 by the forward and backward of the cylinder 57 are moved forward and backward along the rotation shaft 47 so that the first clamp 58 and the first clamp 58 As the two clamps 59 are connected to or separated from each other, the rotational force of the driving motor 46 may be connected to the camshaft 40 as necessary.

The operation of the present invention having the above configuration will be described.

The steel sheet cutting device of the present invention operates differently in the state where the steel sheet S is in progress and the state where the steel sheet S is stopped. In the case where the steel sheet S is in progress, the cylinder 57 is advanced so that the driving motor 46 When the rotational driving force is provided to the camshaft 40 and the steel plate S is stopped, the camshaft 40 is freely rotated by the cylinder 57 being retracted, thereby blocking the driving motor 46 and the camshaft 40 from each other. .

First, when the steel sheet (S) advances and the cylinder 57 is advanced, the bearing block 54 and the shaft guide guide 52 are connected to the driving motor 46 along the rotation shaft 47 through the rod 56 connected thereto. Is moved, which causes the first clamp 58 mounted on the shaft guide guide 52 to be spaced apart from the second clamp 59 of the camshaft 40.

That is, when the drive motor 32 is driven to rotate, the cam shaft 30 is rotated by it, while the cam shaft 40 is free, so that no restraint is applied to the behavior of the undercoat 20.

Therefore, the upper and lower roads 10 and 20 cut the steel plate S by the cutting behavior corresponding to the progress of the steel plate S as in the prior art.

On the other hand, when the cylinder 57 is reversed when the steel sheet S is stopped, the bearing block 54 and the shaft guide guide 52 are driven along the rotation shaft 47 by the rod 56 connected thereto. It is moved away from, which causes the first clamp 58 mounted on the shaft guide guide 52 to be connected with the second clamp 59 of the camshaft 40.

That is, the camshaft 30 connected to directly drive the top coat 10 is driven to rotate by the drive motor 32, and the camshaft 40 connected to the bottom road 20 is driven to rotate by the drive motor 46. The bar 20 is operated in a completely different path from the above, and this will be described in more detail.

The upper road 10 is moved along a rotation path having a predetermined radius by the rotational drive of the camshaft 30, while the lower road 20 is sliding of the sliding support 11 that moves with the upper road 10. The steel plate S is moved along the groove 11a but behaves differently from the above by the driving motor 46.

As described above, according to the steel sheet cutting device having the function of advancing and stopping cutting, the quality of the cutting part is improved by making the cutting of the steel sheet stable by changing the unloading behavior between when the steel sheet is advanced and when it is stopped. It has an excellent effect.

Claims (2)

It is rotated by a top motor 10 mounted on an upper portion of the sliding support 11, a lower road 20 slidably mounted on a sliding groove 11a of the sliding support 11, and a driving motor 32. A camshaft 30, a top support arm 13 which connects the top 10 and the cam shaft 30 via a bearing block 35, and a disc shaped undercarriage cam 34 formed on the cam shaft 30. In the steel sheet cutting device consisting of a lower support arm 23 for connecting the lower road 20 and the cam shaft 30 via a medium, the cam shaft 40 is disposed in parallel with the cam shaft 30 and rotatably installed; A connecting arm 44 connecting the camshaft 40 to the lower road 20 and a driving motor 46 connected to the camshaft 40 via a clutch. Having a steel sheet cutting device. According to claim 1, wherein the clutch, the guide projection (47a) formed in the longitudinal direction on the rotary shaft 47 of the drive motor 46 and the guide groove (52a) for slidingly receiving the guide projection (47a) The formed shaft guide guide 52, the first clamp 58 connected to the shaft guide guide 52, and the second clamp 59 provided on the cam shaft 40 so as to correspond to the first clamp 58. ), A bearing block 54 for rotatably supporting the shaft guide guide 52, and a bearing block 54 connected to the bearing block 54 so that the bearing block 54 and the shaft guide guide 52 are rotated. Steel plate cutting device having a forward and stop cutting function, characterized in that consisting of a cylinder (57) to move along.