KR100825588B1 - An apparatus for rolling hydraulic cylinder for repairing hot strip cutting machine - Google Patents

Abstract

The present invention provides a hydraulic cylinder rolling device for disassembly and repair of a hot rolled strip cutter to easily perform roll shaft disassembly of a hydraulic cylinder for fixing a gear when disassembling and assembling a hot rolled strip cutter for smoothly entering a rolled roll of a hot rolled coil.

The rolling device 1 includes a first adjusting part in a longitudinal direction having a first moving block 14 installed on the base plate 12 grounded to one side of the hot rolled strip cutter 2 so as to move back and forth in the longitudinal direction thereof. 10); and a second adjusting unit 30 in the width direction having a second moving block 32 installed to move left and right on the first moving block 14; and, an upper portion of the second moving block 32. A third adjusting unit 50 in the up and down direction having a third moving block 52 installed to move upward and downward in the upper and lower directions; And drive rolls and driven rolls 72 and 74 which are installed on the third movable block 52 so as to be spaced apart from each other, and the hydraulic cylinder 8 on each of the rolls 72 and 74. It is configured as a rolling unit 70 is rolled.

Therefore, according to the present invention, it is to provide an effect to easily perform the roll shaft disassembly of the hydraulic cylinder for fixing the gear portion during disassembly and assembly of the hot rolled strip cutter.

Strip cutting machine, gear part, hydraulic cylinder for disassembly and assembly, hydraulic cylinder rolling device, hot rolled coil

Description

Hydraulic cylinder rolling device for disassembly and repair of hot rolled strip cutters {AN APPARATUS FOR ROLLING HYDRAULIC CYLINDER FOR REPAIRING HOT STRIP CUTTING MACHINE}             

1 is a diagram illustrating a disassembly operation of a hydraulic cylinder for disassembly and repair of a conventional hot rolled strip cutter.

(a) is a perspective view showing the overall configuration

(b) a perspective view of the main part

Figure 2 is a cross-sectional view showing the hydraulic cylinder operation of the conventional hot rolled strip cutting machine

Figure 3 is a schematic perspective view showing a hydraulic cylinder rolling device for disassembly repair of a hot rolled strip cutter according to the present invention

Figure 4 is a schematic perspective view showing the hydraulic cylinder rolling operation by the hydraulic cylinder rolling device for disassembly repair of the inventor hot rolled strip cutter

Figure 5 is a perspective view showing a first adjustment of the rolling device of the present invention

Figure 6 is a front view of the main portion showing the operating state of the first adjustment portion of the device of the present invention;

Figure 7 is a perspective view showing a second adjustment of the present invention rolling device

8 is a cross-sectional view showing an operating state of the second adjustment unit of the present invention a rolling device.

9 is a perspective view showing a third adjustment unit of the present invention a rolling device                 

10 is a cross-sectional view showing an operating state of the third adjustment unit of the present invention a rolling device.

Figure 11 is a partial perspective view showing a hydraulic cylinder rolling portion of the present invention rolling device

12 is a cross-sectional view showing a rolling unit driving roll of the present invention a rolling device

Figure 13 is a cross-sectional view showing the interval adjustment state in the rolling portion of the present invention rolling device

Explanation of symbols on the main parts of the drawings

1 .... hydraulic cylinder rolling device 2 .... hot rolled strip cutting machine

6 .... drum shaft 8 .... hydraulic cylinder

10,30,50 .... 1-3 Control Unit 14,32,52 .... Moving Block

16,34 .... LM Guide 18,36,76,78 ... LM Block

20 .. Rack Gear Plate 22 .... Drive Pinion

40,56,96 ... Screwbar 44,60,94 ....

54 .... Guide bar 55 .... Guide tube

70 .... rolling part 72,74 .... driven and driven roll

74 .... guide groove 82,84 .... bearing block

The present invention relates to a hydraulic cylinder rolling device used for disassembling or assembling a gear part when repairing a hot rolled strip cutter. In particular, a rolling roll is formed by cutting the front and rear ends of a hot rolled coil installed at a front end of a finishing mill in a hot rolling process. Hydraulic cylinder rolling device for disassembly and repair of hot rolled strip cutters that facilitates the entry of strips into the strip and facilitates the roll shaft disassembly of hydraulic cylinders that hold gears during disassembly and assembly of hot rolled strip cutters affecting the quality of the coil. It is about.

Generally, CROP SHEAR is installed at the front of FINISHING SCALE BRAKER and cuts the front and rear ends of the strip before entering the WORK ROLL of the finishing mill. The front end is curved and the rear end is configured to be cut in a straight line, which is shown as a schematic perspective view in FIG.

That is, as shown in Figure 1a, the driving of the hot rolled strip cutting machine 100 is a pair of two motors (not shown) mounted so as to rotate through the base 112 on both sides through one reducer (not shown). The driving force coupled to and driven by one of the drum shafts 110 is driven by a drive gear 114a assembled to both sides of the base 112 of the drum shaft 110 and a spur gear 114b engaged therewith. The shaft 110 is driven, and the front and rear ends of the strip passing therethrough are cut by the knife 120 assembled at both sides of the central portion of the drum shaft 110.

On the other hand, look at the assembly of such a hot-rolled strip cutter 100 in more detail, as shown in Figure 2, the drum shaft end 110a of the outer base installed to rotate through the bearing 112a of the base 112 The gear part 114 is fitted and assembled, and the hydraulic cylinder 120 is formed in a ring shape on the outside of the gear part 114 and the piston 122 is advanced by the hydraulic oil supplied through the hydraulic passage 124. ) Is assembled to the drum shaft 110 in the form of a screw (S), wherein the end 110a of the drum shaft 110 is formed with an inflow oil passage (110b) to reach the inner portion of the gear portion 114. .

Therefore, in the disassembling work for repairing the hot rolled strip cutter 100 as described above, the hydraulic oil is supplied at a high pressure through the hydraulic passage 110b of the drum shaft 110 in a state in which the gear part 114 is inclinedly inclined. Slowly away from the drum shaft end (110a), the hydraulic cylinder 120 is supplied to the hydraulic oil while gradually reducing the supply amount to the inlet passage 124, the piston 122 is the moment of the gear unit 114 It is to perform the drum shaft disassembly of the gear unit 114 while preventing the departure of the drum shaft.

However, as shown in FIG. 1B, as the disassembling operation of the gear unit 114 is performed, the hydraulic cylinder 120 should be disassembled at the end of the drum shaft 110, so that the chain 130 connected to the crane is removed. Pulling the chain 130 in a state wound on the fixing piece 126 installed in the body of the hydraulic cylinder 120 is to perform the drum shaft disassembly operation of the hydraulic cylinder 120.

However, in the hydraulic cylinder rolling operation of a conventional hot rolled strip cutter using such a chain, the screw portion (S) of the drum shaft end (110a) while the operator rotates the hydraulic cylinder 120 to the chain 130 by the crane operation. Since disassembling or assembling the hydraulic cylinder 120 in), the unbalanced force of the force applied during the rolling operation of the hydraulic cylinder 120 by the chain due to the inexperienced operation of the operator is easily generated and the fixing of the screw portion (S) As the screw portion S is damaged, there is a problem that makes it difficult to disassemble the drum shaft of the gear portion 114.

Then, the operator disassembles or disassembles the gear part of the serial strip cutter for the operation of turning the chain 130 on the hydraulic cylinder 120, which in turn delays the maintenance and maintenance of the facility, thereby operating the hot rolled strip cutter. It is to stop itself, in particular a large safety accident in which the worker is injured due to a short circuit of the chain 130 or a worker's misoperation is concerned.

In addition, since the crane works intensively only at the lower point, it increases the worker's fatigue due to excessive demands on the maintenance time, such as affecting the performance of other maintenance work, damage / removal of stuck hydraulic cylinders, and repetitive work. There is a problem such as high risk of safety accident, such as injury to the operator due to the bursting of the rope 13 when the screw portion is stuck.

The present invention has been made in order to solve the various problems as described above, the object is to roll the hydraulic cylinder used in the disassembly and assembly of the gear portion of the hot rolled strip cutter in a natural state without rotating by excessive force using a chain. By performing the assembly and disassembly work, the damage of the drum shaft screw part of the hydraulic cylinder is prevented, and the work is easy by the simple operation without the manual operation of the operator, and the work is convenient. In particular, it prevents the worker's safety accident in advance. It is an object of the present invention to provide a hydraulic cylinder rolling device for disassembly and repair of a hot rolled strip cutter, wherein the cutting of the hot rolled strip is restarted quickly.

As a technical configuration for achieving the above object, the present invention, in the hydraulic cylinder fixed to the drum shaft in the form of a screw so as to disassemble and assemble the gear portion of the hot rolled strip cutter, the base plate is installed on the ground side of the hot rolled strip cutter A first adjusting portion in a longitudinal direction having a first moving block installed on the substrate so as to be moved back and forth in the longitudinal direction thereof;

A second adjusting part in a width direction having a second moving block installed on the first moving block so as to move left and right;

A third adjusting part in a vertical direction having a third moving block installed on the upper part of the second moving block to move upward and downward; And,

A rolling part having a driving roll and a driven roll installed on the third moving block so as to be spaced apart from each other, and rolling the hydraulic cylinder on each of the rolls; By provision.

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

Figure 3 is a schematic perspective view showing a hydraulic cylinder rolling device for an overhaul repair of a hot rolled strip cutter according to the present invention, Figure 4 is a hydraulic cylinder rolling operation by the hydraulic cylinder rolling device for an overhaul repair of a hot rolled strip cutter of the present invention. Although it is a schematic perspective view, the rolling device 1 of this invention is largely divided into the 1st, 1st and 3rd adjustment parts 10, 30, 50, and the rolling part 70, and each adjustment part 10 ( Looking at the 30 and 50 and the rolling portion 70 in detail as follows.

First, FIG. 5 shows a perspective view of the first adjusting part 10 of the rolling device 1 of the present invention, and FIG. 6 shows an operating state of the first adjusting part 10 in a front view of the main part. The first adjusting part 10 of the device 1 of the present invention comprises a first moving block 14 installed on the base plate 12 grounded to one side of the hot rolled strip cutter 2 so as to move back and forth in the longitudinal direction thereof. It is configured to allow adjustment in the longitudinal direction.

That is, as shown in FIG. 5 and FIG. 6, the first LM guide 16 installed at both sides of the base plate 12 in the longitudinal direction at the bottom of the first moving block 14 of the first adjusting unit 10. The first L block 18 moving along the front and rear and left and right are respectively mounted.

In addition, a drive motor 24 connected to a drive pinion 22 engaged with the rack gear plate 20 installed at the center of the base plate 12 is the bracket 26 at the center of the first moving block 14. The first moving block 14 is installed horizontally so as to move along the base plate 12 in the longitudinal direction when the motor 24 is driven. The first adjusting unit 10 is actually a hydraulic cylinder 8. It is to enable the position adjustment in the longitudinal direction with respect to the base plate 12 so as to adjust the exact position in which) is closely rotated.

On the other hand, as shown in Figure 5, the front and rear and left and right corners of the base plate 12, the height adjuster is fastened to the base plate 12 to maintain the correct horizontal state prior to the operation of the device of the present invention (1) For example, the adjusting bolt 12a is provided.

Next, FIG. 7 shows a perspective view of the second adjustment part of the rolling device of the present invention, and FIG. 8 shows the operation state of the second adjustment part of the rolling device of the present invention in sectional view.

As shown in Fig. 7 and Fig. 8, the second adjusting part 30 of the apparatus 1 of the present invention has a second moving block 32 installed on the first moving block 14 so as to move left and right. The position adjustment in the width direction relative to the base plate 12 is possible as described below.

That is, as shown in Figures 7 and 8, the second adjustment unit 30 of the present invention is installed on the bottom of the second moving block 32 in the width direction on the upper portion of the first moving block (14). The second L block 36 moving along the second L guide 34 is mounted on the front, rear, left and right sides, respectively.

And, as shown in Figure 8, the second side of the second moving block 32, the second screw bar passing through the support block 38 is fixed on the first moving block 14 and positioned in the center ( A pair of guide blocks 42a and 42b on which 40 is supported are fixed to the front and rear sides, and an operation handle 44 is provided on the second screw bar 40.

Accordingly, the second adjusting part 30 of the present invention is configured such that the second moving block 32 moves in the width direction with respect to the base plate 12 on the first moving block 14 when the handle 44 is operated. In this case, although not shown in the drawings, each of the blocks 42 and 38 is provided with a bushing to which the second strand bar 40 is fastened.

Next, FIG. 9 shows a perspective view of the third adjustment unit of the rolling apparatus of the present invention in a perspective view, and in FIG. 10 illustrates an operation state of the third adjustment unit of the rolling apparatus of the present invention in a cross-sectional view. ) Is equipped with a third moving block 52 installed to move up and down on the upper portion of the second moving block 32 is configured to enable the device adjustment in the up, down direction.

That is, as shown in Figures 9 and 10, the guide rods 54 installed on both sides of the upper portion of the second moving block 32 on both sides of the third moving block 52 of the third adjustment unit 50, Each of the guide pipes 55 to be inserted is installed, and a pair of gear boxes 56a and 56b are mounted on the upper left and right sides of the second moving block 32 at the center front and rear sides of the third moving block 52. The upper part of the third screw bar 56 installed so as to vertically move through the second moving block 32 is fixed as the bracket 57.

And, as shown in Figure 10, the operation shaft 60 and the connecting arm 62 is connected to the drive shaft (58a, 58b) protruding to each of the gearbox (56a, 56b) to handle the handle The third moving block 52 is configured to move up and down in a state of being supported as guide members on both sides.

Next, in FIG. 11, the hydraulic cylinder rolling portion of the rolling apparatus of the present invention is shown in a partial perspective view, in FIG. 12, the driving roll of the rolling portion is shown in cross section, and in FIG. 13, between the driving roll and the driven roll in the rolling portion. Shows the interval adjustment state of.

That is, as shown in Figures 11 to 13, the rolling unit 70 of the present invention is the driving roll and driven roll 72, 74 is installed so as to adjust the distance from each other on the third moving block (52). The hydraulic cylinder 8 shown in FIGS. 3 and 4 is rolled on each of the rolls 72 and 74.

Meanwhile, as shown in FIGS. 11 and 12, the driving roll 72 and the driven roll 74 of the rolling unit 70 are guide grooves 75 installed on both upper sides of the third moving block 52. And rotated between the bearing blocks 82 and 84 mounted on the third and fourth MP blocks 76 and 78 separated from each other.

At this time, as shown in Figure 12, the drive roll 72 is a drive motor 88 on the bracket 86 installed on the side of the third M block 76 is coupled to the coupling 88a the drive roll The 72 is rotated when the motor is driven so that the hydraulic cylinder 8 which is in close contact with the driving roll 72 and the driven roll 74 is configured to rotate.

11 and 13, the connecting bars 90a and 90b connected between the third L block 76 and the fourth L block 78 are disposed on the third moving block 52. The fourth screw bar 96 is passed through the support block 92 fixed to the vertical and the operation handle 94 is installed at the end, so that the connection bar (90a) (90b) and when the handle (94) The driving rolls 72 and the driven rolls 74 on the third and fourth LS blocks 76 and 78 are configured to move while being narrowed or separated from each other.

Referring to the operation of the present invention made in the above configuration in more detail as follows.

As shown in Figs. 3 to 13, the device 1 of the present invention is variably adjusted in the longitudinal direction and the width direction with respect to the base plate 12, and is also variably adjusted in the vertical direction, and finally 8) Hydraulic cylinder rolling device (1) for disassembly and repair of the hot rolled strip cutting machine of the present invention for easily rolling by rotating the hydraulic cylinder (8) while adjusting the distance between the driving roll (72) and the driven roll (74) according to the diameter of 8). Is as follows.

First, as shown in Figs. 3 and 5, the horizontal state of the base plate 12 is first checked before the device 1 of the present invention is operated. According to the result of the check, four corners of the base plate 12 are checked. Level the base plate 12 by turning the height adjuster (12a) installed, that is, the adjustment bolt.

Next, as shown in FIG. 4, although not shown in the figure, the hot rolled strip cutter 2 is moved as a crane and positioned on one side of the rolling apparatus 1 of the present invention.

As shown in FIG. 4, the hydraulic oil is supplied to the hydraulic cylinder 8 so as to disassemble the gear unit 4 installed in the drum shaft 6 of the cutter 2, and the piston 8a at the front end thereof. The hydraulic part is supplied to the shaft 6 while the gear part 4 is gradually disengaged from the shaft 6, so that the inner peripheral part of the gear part 4 is disengaged from the shaft 6.

Next, as shown in Figures 5 and 6, by operating the first adjusting portion 10 of the rolling device 1 of the present invention to adjust in the longitudinal direction relative to the base plate 12, such a first adjusting portion 10, the ring-shaped hydraulic cylinder 8 is accurately seated on the driving roll 72 and driven roll 74 of the rolling section 70 to be described later.

That is, as shown in FIG. 6, when the driving motor 24 is operated, the driving pin 22 moves along the rack gear plate 20 on the base plate 12, and eventually the first moving block ( 14, the first elmblock 18 at its bottom moves along the first EL guide 16 on the base plate 12.

Next, when the adjustment in the longitudinal direction as described above is performed, as shown in Figures 7 and 8, the position in the width direction relative to the base plate 12 is adjusted.

That is, as shown in FIGS. 4, 7 and 8, when the handle 44 of the second adjusting unit 30 is turned, the second screw bar 40 to which the handle 44 is connected is connected to the first moving block ( The second movable block 32 is moved in the width direction integrally with both side guide blocks 42a and 42b of the second movable block 32 while being supported by the support block 38 fixed on the 14.

In this case, as shown in FIG. 7, the second L block 36 installed at the bottom of the second moving block 32 is smoothly along the second L guide 34 installed in the first moving block 14. The device 1 of the present invention at the time of the operation of the first and second adjustment units 10 and 30 eventually adjusts the position of the driving rolls and driven rolls 72 and 74 in the front and rear and right and left directions. To do.

Next, as shown in Figures 4, 9 and 10, when the adjustment in the longitudinal direction and the width direction is completed, to adjust the up and down position of the third moving block 52, each roll is installed, the operator When the handle 60 of the third adjusting unit 50 is rotated, the drive shaft 58a of the gearbox 56a to which the handle 60 is connected is rotated, and the other gearbox connected to the connecting arm 62 on the opposite side thereof. The drive shaft 58b of 56b is driven.

Accordingly, although not shown in the drawing, the third screw bar 56 installed in the gearbox 56 in the vertical direction, such as a worm wheel, moves up and down, so that the third screw bar 56 is bracket 570. The third movable block 52 fixed as the movable member moves in the vertical direction, and at this time, the guide rods 55 installed on both sides of the bottom of the third movable block 52 are guide tubes installed on the second movable block 32. It moves up and down within 54 to stably perform the up and down movement of the third moving block 52.

Next, the first 1-3 moving blocks 14, 32 and 52 of the first to third adjustment units 10, 30 and 50 are adjusted to complete the adjustment in the longitudinal direction, the width direction, and the vertical direction. Then, the driving roll 72 and the driven roll 74 which is installed on the third moving block 52 is in close contact with the lower side of the hydraulic cylinder (8).

Accordingly, as shown in FIGS. 11 to 13, when the handle 94 of the rolling unit 70 is operated, the fourth screw bar 96 is supported through the support block 92 fixed on the third moving block 52. ) Rotates, and the fourth screw bar 96, as shown in Figure 13, the third, fourth L block 76, 78, the drive roll 72 and the driven roll 74 is installed The screw direction is reversely fastened to the connection bars 90a and 90b connected therebetween.

As a result, when the handle 94 is turned, the third and fourth L blocks 76 and 78 moving along the guide groove 75 on the third moving block 52 are separated from each other or narrowed. The distance between the driving roll 72 and the driven roll 74 which are fastened to the bearing blocks 82 and 84 installed above the blocks 76 and 78 is adjusted, which is the diameter of the hydraulic cylinder 8. It is possible to easily adjust the roll spacing according to this, such a spacing adjustment affects the actual state of the hydraulic cylinder 8 and the close contact of the rolls to improve the rolling state of the hydraulic cylinder (8).

Next, when the driving motor 88 on the bracket 86 fixed to move integrally to one side of the third L block 76, the driving roll 72 is ring-shaped as shown in FIG. While close to the outer surface of the hydraulic cylinder (8) is to rotate the hydraulic cylinder (8) in the opposite direction of disassembly or assembly.

Accordingly, according to the rolling device 1 of the present invention, the operator simply adjusts the position of the driving roll 72 and the driven roll 74 at the lower portion thereof without the need of disassembling the hydraulic cylinder 8 with excessive force. , Driving the driving roll to assemble and disassemble the drum shaft 6 of the hydraulic cylinder 8, which in turn facilitates disassembly and assembly of the hot rolled strip cutter 2.

Thus, according to the hydraulic cylinder rolling device for disassembly and repair of the hot rolled strip cutter of the present invention, during the disassembly and assembly of the gear part of the hot rolled strip cutter, it is possible to prevent damage to the screw portion and to perform a quick repair work in a natural state. It can be carried out as well as a quick restart of the cutter, as well as improving the quality and maintenance time of the hot rolled coil according to the normal operation, restrain the use of other equipment and prevent damage to the screw (parts), shorten the maintenance time, It provides the effect of preventing the risk of safety accidents and reducing worker fatigue.

While the invention has been shown and described with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit or scope of the invention as set forth in the claims below. I would like to know that those who have knowledge of this can easily know.

Claims (6)

In the hydraulic cylinder (8) fixed in the form of a screw (S) to the drum shaft (6) to disassemble and assemble the gear portion (4) of the hot rolled strip cutter (2), A first adjustment part 10 in a longitudinal direction having a first moving block 14 installed on the base plate 12 grounded to one side of the hot rolled strip cutter 2 so as to be moved back and forth in the longitudinal direction thereof; A second adjusting part 30 in the width direction having a second moving block 32 installed to move left and right on the first moving block 14; and A third adjusting part 50 in the up and down direction having a third moving block 52 installed to move up and down on the second moving block 32; And, Drive rolls and driven rolls 72 and 74 are installed on the third moving block 52 so as to be spaced apart from each other, and the hydraulic cylinder 8 is rolled on the respective rolls 72 and 74. Hydraulic cylinder rolling device for disassembly and repair of a hot rolled strip cutter, characterized in that configured as a rolling unit 70 The first LM of claim 1, wherein the bottom of the first moving block 14 of the first adjusting unit 10 moves along the first LM guides 16 installed on both sides of the base plate 12 in the longitudinal direction. Block 18 is mounted on the front and rear and left and right, respectively, At the center of the first moving block 14 is a drive motor 24 connected with a drive pinion 22 engaged with the rack gear plate 20 installed at the center of the base plate 12 as a bracket 26. Hydraulic cylinder rolling device is installed, characterized in that the first moving block 14 is configured to move in the longitudinal direction when the motor is driven According to claim 1, At the bottom of the second moving block 32 of the second adjusting unit 30 is moved along the second L-M guide 34 installed in the width direction on top of the first moving block 14 The second L block 36 is mounted on the front and rear and left and right, respectively, On the side of the second moving block 32, a pair of guide blocks supported by a second screw bar 40 which is fixed on the first moving block 14 and passes through a support block 38 positioned at the center ( 42a) and 42b are fixed to the front and rear sides, respectively, and the second screw bar 40 is provided with an operation handle 44 so that the second moving block 32 is configured to adjust width in the handle operation. Hydraulic cylinder rolling device The guide tube 55 of claim 1, wherein guide rods 54 vertically installed on both sides of the upper portion of the second moving block 32 are inserted into both sides of the third moving block 52 of the third adjusting part 50. ) Will be installed separately, At the center front, rear, and bottom of the third moving block 52, the second moving block 32 is vertically connected through a pair of gear boxes 56a and 56b mounted on the upper left and right sides of the second moving block 32. The upper part of the third screw bar 56 installed to be moved is fixed as the bracket 57, and the drive shafts 58a and 58b protruding from the respective gearboxes 56a and 56b are provided with the operation handle 60 and Hydraulic cylinder rolling device characterized in that the connecting arm 62 is connected to the third moving block is configured to be adjusted up and down when operating the handle The driving and driven rolls 72 and 74 of the rolling unit 70 move along the guide grooves 75 installed on both sides of the third moving block 52 and are separated from each other. It is mounted so as to rotate between the bearing blocks 82, 84 mounted on the 3,4 LM blocks 76, 78, The driving roll 72 is connected to the driving motor 88 on the bracket 86 installed on the side of the third L block 76, the coupling 88a is connected to the driving roll 72 is rotated when the motor drive the Hydraulic cylinder rolling device, characterized in that the hydraulic cylinder 8 in close contact with the drive roll 72 and the driven roll 74 is configured to rotate According to claim 5, The connecting bar (90a) (90b) connected between the third L block 76 and the fourth L block (78) Support block vertically fixed on the third moving block ( The fourth screw bar 96 passing through the handle 92 and having an operating handle 94 at the end thereof is fastened, and the third and fourth elms integrally with the connecting bars 90a and 90b when the handle is operated 94. Hydraulic cylinder rolling device, characterized in that the drive roll 72 and the driven roll 74 on the blocks 76, 78 are configured to move opposite to each other.

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