KR200204813Y1 - Device for fixing knife of side trimmer - Google Patents

Abstract

The present invention relates to a device for fixing the knife of the side trimmer, more specifically, a simple hand tool can be fixed to the front surface of the circular knife at the same pressure, and to maintain a constant knife gap between the upper and lower, to prevent cutting failure The present invention relates to a knife holding device of a side trimmer, which can extend the service life of a knife.

The present invention has a cylindrical cover (11) on which the fixing plate (12) is assembled on the left and right sides, and an outer cover (13) is assembled on the outside of the fixing plate (12) via a gap retaining ring (16). (10); and guide bars rotatably assembled to the clamp shafts (31a) (32a) and each guide hole (15) rotatably assembled in the respective clamp holes (14) of the fixing plate (12) facing each other. The main clamp 31 and the plurality of sub-clamps 32 protruding from the left and right ends 31b and 32b are formed on the lower end of the clamp members 31 and 32. While mounting the contact roll 33 to be in contact, between the clamp member 31, 32 provides a knife fixing device of the side trimmer comprising a; clamp portion 30 is configured as a connecting table 35.

Description

Device for fixing knife of side trimmer}

The present invention relates to a device for fixing the knife of the side trimmer, more specifically, a simple hand tool can be fixed to the front surface of the circular knife at the same pressure, and to maintain a constant knife gap between the upper and lower, to prevent cutting failure The present invention relates to a knife holding device of a side trimmer, which can extend the service life of a knife.

In general, the side trimmer 1, which is a facility that cuts both edges of a rolled steel sheet in a width required by the demand, is as shown in FIG. 1 (a) (b) (c). The circular knife (2) is provided with a total of four knife members arranged on the left and right sides of the steel plate, the key groove (8) of the knife (2) to prevent the flow and departure of the circular knife (2) during high speed rotation To the key (9) of the knife fixing shaft (5), and inserts the specialty (3) on the cylindrical casing from the outside of the knife (2), and then the tip is fastened to the shaft (5). The specialty 3 and the knife 2 were simultaneously fixed using two bolts 4 to assemble.

However, when the knife surface is damaged due to the breakage of the knife surface or the wear of the cutting surface due to the cutting of both edges of the steel sheet, the specialty 3, the knife 2, and the knife fixing shaft 5 Loosen a plurality of bolts (4) fastened to replace the damaged knife (2) with a new, then reassembled by rebolting the disassembled bolt (4). At this time, a deviation occurs during the bolting operation of the bolt 4 according to the worker replacing the circular knife 2 and the tool used, so that the gap of the upper and one knife 2 is not constant. As a result, breakage of the cut surface of the knife 2 occurred due to the poor cutting and the contact between the upper and one knifes 2.

In addition, since a total of 24 bolts 4 must be rebolted in the knife replacement work, the replacement work is delayed and the operation stoppage is prolonged.

In addition, when fixing the specialty and the knife as one bolt by using oil hydraulic pressure, the oil ring is broken even after a slight impact, and thus it is difficult to perform its function.The knife is fixed due to the oil leakage when replacing the knife or cutting the edge of the steel sheet. This was not done properly, there was a fatal problem causing equipment accidents during the specialization of the steel sheet cutting work.

Therefore, the present invention has been devised in view of such a conventional problem, and the object thereof is to maintain a constant gap between the phases and one knife in which the knife inserted into the shaft is fixed and fixed as a simple hand tool. The present invention aims to provide a steel sheet fixing device of a side trimmer that prevents cutting defects, prevents damage to the knife, reduces the worker's workload, and reduces the production downtime.

Figure 1 (a) is a state of cutting with a knife of a general side trimmer,

Figure 1 (b) is an exploded perspective view showing a knife of a general side trimmer,

Figure 1 (c) is an assembled state showing a knife of a general side trimmer,

Figure 2 (a) (b) is a perspective view and a front view showing a knife fixing device of the side trimmer according to the present invention,

3 is an exploded perspective view showing a knife fixing device of the side trimmer according to the present invention,

Figure 4 is an exploded perspective view showing a clamp portion employed in the knife fixing device of the side trimmer according to the present invention,

Figure 5 (a) (b) is a state of use showing a knife fixing device of the side trimmer according to the present invention,

Figure 6 (a) (b) is an external view, front view showing a knife high storage value of the side trimmer according to the present invention.

* Explanation of symbols for the main parts of the drawings *

2 ..... Knives 5 ..... Knife fixing shaft

11 .... Cylinder Cover 12 .... Mounting Plate

13 .... Outer cover 16 .... Spacing ring

31 .... main clamp 32 .... sub clamp

31a, 32a .... Clamp Shafts 31b, 32b .... Guide Bar

33 .... Contact roll 35 .... Connecting rod

As a technical configuration for achieving the above object, the present invention,

In the side trimmer equipment for cutting the left and right edges of the steel plate running in one direction as a pair of upper and lower knives assembled to the knife fixing shaft,

It has a cylindrical cover on which the fixing plate is assembled on the left and right sides, the outer body of the fixing plate is assembled on the outside of the fixing plate via a gap retaining ring; and,

A main clamp and a plurality of sub-clamps protruding from both left and right ends of the clamp shaft rotatably assembled in each clamp hole of the fixing plate facing each other, and the guide bar rotatably assembled in each guide hole, and at the lower end of the clamp member. By mounting a contact roll to the outer surface in contact with the shaft, while the clamp member between the clamp portion is configured as a connecting rod; comprises a knife fixing device of the side trimmer, characterized in that it comprises a.

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

Figure 2 (a) (b) is a perspective view and a front view showing a knife fixing device of the side trimmer according to the present invention, Figure 3 is an exploded perspective view showing a knife fixing device of the side trimmer according to the present invention, Figure 4 5 is an exploded perspective view showing a clamp portion employed in the knife fixing device of the side trimmer according to the present invention, Figure 5 (a) (b) is a state diagram showing a knife fixing device of the side trimmer according to the present invention, Figure 6 ( a) (b) is an external view and a front view showing the knife high storage value of the side trimmer according to the present invention.

The knife fixing device 100 of the present invention is a simple hand tool such as an L-wrench as shown in Figs. 2 to 6 to constantly fix the knife 2 to the knife fixing shaft 5, such an apparatus 100 ) Is composed of a main body portion 10 and a clamp portion (30).

That is, the main body portion 10 is composed of a cylindrical cover 11, a fixing plate 12 and an outer cover 13 accommodated therein the clamp members 31 and 32 to be described later, the cylindrical cover ( 11, left and right sides of the knife fixing shaft (5) is assembled through, a plurality of clamp holes 14, the fixed plate 12, the perforated holes 15 are assembled, respectively, the fixed plate 12 Each outer side of the assembly is assembled as a bolt member not shown, and the outer cover 13 through the gap retaining ring 16 through which the shaft 5 passes through each of the fixing plate 12 to the cylindrical cover (11) It mounts as a bolt member (not shown) to assemble.

Here, the clamp hole 14 and the guide hole 15 forming the upper and lower pairs are formed in a plurality of perforations at equal intervals in the circumferential direction, and the knife is fixed to one side of the inner circumference of the outer cover 13 adjacent to the knife 2. Together with the dragon shaft 5 forms a key groove 13b that engages with the key 9 which is assembled thereto.

In addition, the clamp part 30 for clamping the knife fixing shaft 5 includes a main clamp 31 accommodated in the cylindrical cover 11 and a plurality of subclaves 32. The clamp 31 is a plate member protruding from the left and right ends of the clamp shaft 31a rotatably assembled in one of the plurality of clamp holes 14 of the fixing plate 12 facing each other, One clamp shaft 31a protruding outward through the hole 13a is equipped with a clamping action bolt into which one end of an L wrench (not shown) is inserted.

The sub-clamp 32 is a rectangular plate member in which a plurality of clamp holes 14 of the fixing plate 12 facing each other and the clamp shafts 32a protruding from the left and right ends thereof are rotatably assembled, and the main clamp 31 ), The guide bars 31b and 32b protruding from the clamp shafts 31a and 32a at the left and right ends of the sub-clamps 32 are formed in respective arc-shaped holes formed in the shape of the fixing plate 14 facing each other. 15), the lower end of the clamp members 31, 32 is attached to the outer peripheral surface of the knife fixing shaft 5, the mounting rolls 33 having conical shapes at both ends, respectively, as roll shafts 33a. do.

In addition, the clamp members 31 and 32 are connected to each other as a connecting table 35 so that the plurality of sub-clamps 32 can be simultaneously rotated together with the rotation operation of the main clamp 31. The both ends are connected to the fixed shaft 36a of the cutout 36 formed on the body of the clamp members 31 and 32, which is composed of a square plate member.

On the other hand, the inside of the fixing plate 12 is inserted into the fixing hole 19 of the fixing plate 12, the fixing hole 39 formed in one upper surface of the main clamp 31 during the high-speed rotation of the knife (2) A fixing holder 21 for holding a knife clamping position, a tip of which is connected to the fixing holder 21, and a handle 23 having a cushion spring 22, and a handle hole 18 of the outer cover 13. Assemble at

The operation and effects of the present invention as described above will be described.

If the knife 2 of the side trimmer is to be replaced due to breakage and abrasion of the cut surface of the knife 2 during the cutting of both edges of the steel plate traveling in one direction, the knife 2 inserted in the knife fixing shaft 5 is replaced. In order to pull out, the handle 23 holding the main clamps 31 and 32 in the cylindrical cover 11 is pulled outward and twisted, and the fixing spring 21 is compressed while the cushion spring 22 is compressed. The fixing holder 21 and the main clamp 31 are separated from each other by being released from the fixing hole 39 of the clamp 31 and the main clamp 31 is freed.

In this state, the operator inserts one end of the L wrench into the clamping action bolt that is the clamp shaft 31a of the main clamp 31 protruding outward through the hole 13a of the one outer cover 13, and FIG. As shown in a), when turned counterclockwise, the guide bar 31b of the main clamp 31 is moved along the guide hole 14 of the fixed plate 12 and the main clamp 31 is clamped. It starts to rotate counterclockwise with the shaft 31a as a rotation axis. At this time, the guide bar 32b of the adjacent sub-clamp 32 connected through the main clamp 31 and the connecting table 35 is also moved along the corresponding guide hole 14 of the fixing plate 12. Like the main clamp 31, the sub clamp 32 starts to rotate counterclockwise with the clamp shaft 32a as the rotating shaft.

As the rotation of the main clamp 31 is simultaneously performed in the plurality of sub-clamps 32 connected as the connecting rod 35, the main clamp 31 is assembled to the lower end of the clamp members 31 and 32 to fix the knife fixing shaft 5. The clamping force for fixing the knife 2 inserted into the shaft 5 is released while the adhesion roll 33, which has been in contact with the outer surface thereof, is spaced apart from the shaft 5.

On the other hand, in order to replace the knife, the cylindrical cover 11 with the clamp members 31 and 32 and the worn and damaged existing knife 2 are withdrawn from the shaft 5, respectively, and then a new knife ( 2) is inserted into the shaft (5), and the cylindrical cover (11) is inserted. At this time, the outer cover 13 in which the key groove 13b of the cylindrical cover 11 is formed is first inserted to match the key groove 13b and the key 9 of the shaft 5 with each other.

Subsequently, in a state where the outer cover 13 is brought into close contact with the first inserted knife 2 or the auxiliary specialty 7, the worker actuates the clamp wrench bolt that is the clamp shaft 31a of the main clamp 31. When it is inserted into and turned clockwise to the contrary, the guide bar 31b of the main clap 31 rotates clockwise about the clap shaft 31a along the guide hole 14 and the main cladding. The connecting rod 35 connected to the clamp 31 pulls the sub clamp 32 toward the main clamp 31. At this time, each of the guide bars 32b of the sub-clamps 32 connected through the connecting table 35 is also moved along the corresponding induction hole 14 of the fixing plate 12 and the plurality of sub-clamps 32. In addition, the clamp shaft 32a is rotated in the clockwise direction with the rotation axis, so that the plurality of sub-clamps 32 together with the main clamp 31 rotate in the same clockwise direction.

Accordingly, the cylindrical cover is mounted to each lower end of the clamp members 31 and 32, and the contact rolls 33 having both left and right ends thereof are in a conical shape are in close contact with the knife fixing shaft 5, which is cut in a V shape. (11) is brought into close contact with the knife 2 as a whole, so that the knife 2 can be fixed uniformly.

In addition, the guide bars 31b and 32b are in contact with one end of the guide hole 14 coinciding with the center of the knife fixing shaft 5 so as to contact the center of the cylindrical cover 11 and the center of the shaft 5. When the coincides with each other, the operator pulls the handle 23 pulled outward so as not to catch the fixing holder 21 and rotates to one side to fix the fixing hole 21 of the fixing holder 21 and the fixing plate 12. When the handle 23 is released in this state, the fixing holder 21 is moved toward the fixing plate 21 by the elastic restoring force of the contracted cushion spring 22, and the main clamp (23) through the fixing hole (19). As it is inserted into the fixing hole 39 of 31, all the operations for fixing the knife 2 can be completed.

Then, the sub-clamps 32, which are configured as the main clamps 31 and the connecting rods 35 by the fixing holders 22, can prevent the clamping position from being released during the high-speed rotation of the knife for cutting the steel sheet.

According to the present invention having the configuration as described above, the main clamp and the sub-clamp which are assembled in the cylindrical cover and connected as a connecting rod are simply inserted into the knife fixing shaft by simply rotating them clockwise or counterclockwise at the same time as a simple hand tool. Fixing and separating the knife can be easily performed, reducing the gap between the upper and lower knives, preventing the cut of the steel sheet, preventing damage to the knife cutting surface, while reducing the work load is obtained.

Claims (4)

In the side trimmer facility which cuts the left and right edges of the steel plate advancing in one direction as a pair of upper and lower knives 2 assembled to the knife fixing shaft 5, The main body portion 10 having a cylindrical cover 11 on which the fixing plate 12 is assembled on the left and right sides, and the outer cover 13 is assembled on the outside of the fixing plate 12 via the gap retaining ring 16. ;Wow, Clamp shafts 31a and 32a rotatably assembled in the respective clamp holes 14 of the fixing plate 12 facing each other, and guide bars 31b and 32b rotatably assembled in the guide holes 15. A main clamp 31 and a plurality of sub-clamps 32 protruding from both left and right ends thereof, and the lower end of the clamp members 31 and 32 are in close contact with the outer surface in contact with the shaft 5. On the other hand, the clamp member 31, 32 between the clamp member 30 is configured to be connected as a connecting rod 35; knife fixing device of the side trimmer, characterized in that it comprises a. The method of claim 1, The clamp shaft 31a of the main clamp 31 is protruded outward through the hole 13a of the one side outer cover 13 and is equipped with a clamp actuation bolt into which one end of the L wrench is inserted. Knife Fixture. The method of claim 1, The inside of the fixing plate 12 is inserted into the fixing hole 19 of the fixing plate 12 and the fixing hole 39 formed on one side of the upper part of the main clamp 31 to clamp the knife during the high speed rotation of the knife 2. A fixing holder 21 for holding a position, a tip of which is connected to the fixing holder 21, and a handle 23 having a cushion spring 22 is assembled to the handle hole 18 of the outer cover 13. Side trimmer knife holding device characterized in that the configuration. The method of claim 1 The adhesion roll 33 is in close contact with the knife fixing shaft 5, which is dug into a V-shape to induce the cylindrical cover 11 as a whole in close contact with the knife 2 side so as to uniformly fix the knife (2). Knife fixing device of the side trimmer, characterized in that the left and right ends are formed in a conical shape.