KR101018222B1 - Rubber device for side trimmer - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber ring apparatus used for side trimmers for cutting edge portions of strips in the production of cold rolled products such as coils and sheets in a cold rolling process.

The present invention includes a slide and a cylinder on a base on which upper and lower knives are mounted, and a pair of rubber rings are provided on the upper and lower sides of the support, and the rubber rings are moved to the upper and lower knife sides by the operation of the cylinder. Rubber ring conveying unit; A rotating part having a motor for rotating the rotating shaft perpendicular to the support, and allowing the rubber rings provided at the tip of the rotating guide to move to the upper and lower knife sides by operating the motor; and a bracket protruding from the support. By providing a rubber bearing device for a side trimmer comprising a; guide portion for guiding the movement of the rotary guide to guide the movement of the rotary guide to guide the movement of the rotary guide so as to slide slidably; All.

According to the present invention, the rubber ring can be continuously used irrespective of the change in the strip thickness and the knife outer diameter of the site trimmer, thereby enabling effective rubber ring operation and preventing defects generated during cutting of the strip edge.

Upper and Lower Knives, Cold Rolled Products, Edge Cutting, Side Trimmers, Rubber Devices

Description

Rubber ring device for side trimmer {A RUBBER RING APPARATUS FOR SIDE TRIMMER}

1 is an enlarged view showing an arrangement relationship between upper and lower knives and a support ring of a side trimmer device according to the prior art;

2 is a configuration diagram in which the rubber trimming device for the side trimmer according to the present invention is disposed on the side of upper and lower knives of the side trimmer;

3 is an exploded perspective view showing in detail the upper rubber portion in the rubber device for side trimmers according to the present invention;

4 is a sectional view in which a rubber trimming device for a side trimmer according to the present invention is mounted to a side trimmer;

5 is a cross-sectional view showing a state in which the rubber device for side trimmers according to the present invention is operated in the side trimmer.

       <Description of the symbols for the main parts of the drawings>

1 .... Rubber device for side trimmer

5 .... slip 7a, 7b .... rubber ring

10 .... Rubber transfer part 17 .... Slide block

30 .... rotating part 32a, 32b .... rotating shaft

34 .... Motor 37 .... Rotation Guide                 

40 .... Rack Gear 44 .... Pinion Gear

47 .... Pulley 50 .... Belt

52 .... rubber block 54 .... cushion back

58 .... central axis of rotation 60 .... guide part

74 .... Bracket 80 .... Ball Bearing

200 .... side trimmer 205a, 205b .... upper and lower knife

210a, 210b ... goblets 220 .... wave

222 ... mark 223

S .... strip

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber trimming device used for side trimmers that cut edges of strips in the production of cold rolled products, such as coils and sheets, in a cold rolling process. The present invention relates to a rubber ring device for side trimmers, which can be used regardless of strip thickness and knife diameter change, which enables effective rubber ring operation and prevents defects generated when cutting a strip edge.

In general, in the production line of cold rolled products, there is a process of cutting and removing both ends of the strip according to the order of the demand, which is performed by the side trimmer. In order to cut the edge portion of the strip (S) in the side trimmer 200, as shown in Figure 1, the upper and lower knife 205a, 205b and the supporting ring 210a, 210b of the rubber material fitted to the side ) Are integrally assembled, and the quality of the edge cutting surface depends on the assembling state of the upper and lower support rings 210a and 210b.

The bearing rings 210a and 210b are disposed at upper and lower knives 205a and 205b, respectively, and generally have an outer diameter according to the outer diameter of the knife 205a and 205b and the thickness of the strip S. The change should be given, and the lower part should be assembled by changing according to the outer diameter of the knife (205a) (205b).

Therefore, when the change of the strip (S), that is, the thickness of the strip (S) during the side trimming operation, the support rings (210a, 210b) need to be replaced at any time, which is a large amount of maintenance work, the support ring of excessive rubber material ( 210a) and 210b. That is, four to twelve pieces are required in units of 1 mm from the minimum use outer diameter of the knives 205a and 205b to the maximum use outer diameter, and about 300 to 400 support rings 210a and 210b are required.

In addition, if the outer diameters of the upper and lower support rings 210a and 210b are not appropriately selected and assembled, as shown in FIG. 1, the edges of the strip S are wavy. The wave 220 of the corrugated knives 205a and 205b is generated, and the knife 205b is formed on both lower surfaces of the strip S by contacting the upper support ring 210a with the lower knife 205b of the strip S. Mark 222 is generated.

In addition, the strip (S) bending mark 223 due to the pressing of the lower support ring (210b) and the upper support ring (210a) is generated to reduce the edge quality of the strip (S), When the knife 205a, 205b and the support rings 210a, 210b are coupled to each other and the strip S enters between the support rings 210a and 210b during the width adjustment, the edges of the strip S There are various problems such as the support rings 210a and 210b are damaged.

The present invention is to solve the conventional problems as described above, the purpose of the edge cutting of the strip, so that it is possible to always use a constant regardless of the thickness change of the strip and the outer diameter of the knife, so that the edge of the strip It prevents knife waves, knife marks, and break marks that occur during cutting, improving edge quality, minimizing the demand for rubber ring, and minimizing the change of knife and rubber ring time. It is an object of the present invention to provide a rubber trimming device for a side trimmer that can be used regardless of thickness variation and knife outer diameter.

In order to achieve the above object, the present invention, in the rubber device is used in the side trimmer which is provided with a rotating upper, lower knife to cut the edge of the strip in the production of cold rolled products,

Sliders are provided on the base on which the upper and lower knives are mounted horizontally, respectively, and a cylinder is provided to move the support and the support so as to be movable in the slide object. Rubber supports are provided at the top and the bottom of the support, respectively. A rubber ring conveying unit configured to move the rubber ring to the upper and lower knife sides by operation of a cylinder when cutting the edge of the strip;

Rotating shafts are vertically disposed to be perpendicular to the support, and a motor for rotating the upper rotating shaft is provided, and the arc-shaped rotating guides, which are movable by the rotating shaft, are moved at the operation of the motor to be provided at the tip of the rotating guide. Rotating portion to move the rubber ring to the upper, lower knife side; And,

And a ball bearing provided to support the rotatable guide to slide on the bracket protruding from the support, thereby guiding the movement of the rotatable guide so that the rubber ring is accurately guided to the upper and lower knife sides. The present invention provides a rubber trimming device for a side trimmer.

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

As shown in FIG. 2, the rubber trimming device 1 for side trimmer according to the present invention has a slide table 5 horizontally disposed on a base 240 on which the upper and lower knives 205a and 205b are mounted. Is provided, the support 12 is mounted so as to be movable on the slide (5), the cylinder 15 for moving the support 12 is provided, and a pair of rubber ring (7a) on the top and bottom of the support (12) (7b) is provided, the rubber ring conveying portion for moving the rubber ring (7a) (7b) to the upper and lower knife (205a) (205b) side by the operation of the cylinder 15 when cutting the edge of the strip (S) Have (10).

The configuration of the rubber ring transfer unit 10 will be described in detail as follows.

It has a pair of rubber rings 7a and 7b that are movable on the sides of the upper and lower knives 205a and 205b, as shown in FIG. 3, and the upper rubber ring 7a for the sake of simplicity. ) Is shown in detail only, and the illustration is omitted for the lower portion of the rubber ring 7b. However, the structure as shown in Fig. 3 is applicable to both the upper and lower rubber rings 7a and 7b.

Such rubber rings 7a and 7b are disposed for each of the upper and lower knives 205a and 205b. Hereinafter, the rubber rings 7a and 7b will be described in more detail with respect to the upper side for the sake of simplicity. The description will be omitted.

The rubber ring conveying part 10 according to the present invention has a slide table 5 horizontally on the base 240 on which the upper and lower knives 205a and 205b are mounted, and the slide table 5 has a curved shape. The slide block 17 is formed in the groove 5a of the groove 5a, and the slide block 17 having a cross-sectional shape is coupled to the groove 5a, and the support 12 is coupled to the slide block 17 so as to be movable. I wear it. Therefore, the operation of the cylinder 15 is a structure for moving the support 12.

In addition, the support 12 supports the rubber rings 7a and 7b mounted through the rotating part 30 to be described later, and the rubber rings 7a and 7b are operated through the operation of the cylinder 15. Let it move horizontally.

And, as shown in Figure 2, the upper and lower sides of the support 12, the rotary shafts 32a and 32b are disposed vertically to be perpendicular to the support 12, the motor for rotating the upper rotary shaft 32a 34 is provided, the rubber ring is provided at the tip of the rotary guide 37 by moving the rotary guide 37 of the arc-shaped each movable by the rotary shaft (32a, 32b) by the operation of the motor 34. (7a) (7b) has the rotating part 30 which moves to the upper and lower knife 205a, 205b side.

The configuration of the rotating unit 30 will be described in detail as follows.

The rotary part 30 has rubber rings 7a and 7b disposed on the support 12 approaching the upper and lower knives 205a and 205b, respectively, and the rubber rings 7a and 7b are strips. As to support the edge portion of (S), in order to move the rubber ring (7a) (7b), as shown in Figure 2, a semicircular rotation guide 37, the top of the support 12, Secure to the bottom to be movable.

As shown in FIGS. 3 and 4, the rotation guide 37 is formed with a concave guide groove 37a, and a circular rack gear 40 is formed at the inner side of the semicircle. The guide groove 37a is connected to the ball bearing 80 of the guide portion 60 which will be described later on each side, and at one end of the circular rotating guide 37, the motor 34 and the rotating shaft ( The pinion gear 44 connected through 32a) is fixed in engagement.

In addition, a pulley 47 into which the belt 50 is inserted is inserted into the rotation shaft 32a.

The motor 34 is fixed to the upper end of the support 12, the slide block 17 is completely fixed to the lower portion of the support 12 is inserted into the slide 5 is arranged horizontally, the slide block 17 ) Is configured to be connected to the rod (15a) of the moving cylinder (15) to be movable.

That is, as shown in the cross section in FIG. 4, the rotating part 30 is provided with the rotating shafts 32a and 32b above and below the support 12, and the rotating shaft 32a on the upper side is the shaft of the motor 34. It is connected to the rotatable, the lower side of the rotating shaft 32b is mounted on the support 12 so that one side through the bearing 33 is rotatable. In addition, pinion gears 44 are formed at the other ends of the rotary shafts 32a and 32b, respectively, and are geared to the inner arc-shaped rack gear 40 of the rotary guide 37. In addition, the pulleys 47 are mounted in the middle of the rotation shafts 32a and 32b, respectively, and the upper and lower rotation shafts 32a and 32b are dynamically connected to each other through the belt 50.

Such a structure of the rotating part 30 is the operation of the motor 34, when the rotating shaft 32a of the upper side is rotated, which operates the rotation guide 37 through the pinion gear 44, at the same time, pulley ( 47) and the lower side rotation shaft 32b through the belt 50, and the lower side rotation shaft 32b is guided to rotate the pinion gear 44 of the lower side rotation shaft 32b to rotate the rotation guide 37 It will work.

Therefore, the rotation part 30 moves the rubber rings 7a and 7b provided in the rotation guide 37 through the rotation shafts 32a and 32b and the rotation guide 37 by the operation of the motor 34.

Meanwhile, as shown in FIG. 3, the rubber ring 7a is mounted at the center of the rubber ring block, and the rubber ring 7a is disposed at the outer circumferential portion between the rubber ring block 52 and the rubber ring block 7a. A cylindrical cushion bag 54 having an air inlet 54a is inserted therein, and both ends thereof are fixed to the rubber ring block 52 by a fixing ring 56, and a rubber ring 7a having a cylindrical structure is formed on the outer surface thereof. Is fitted.

Here, the cushion bag 54 is mounted on the upper and lower rubber rings 7a and 7b, but may optionally have a structure in which the cushion bag 7b is not installed on the lower rubber ring 7b. This is a structure in which the air is filled through the air inlet (54a) to cushion the function.

In addition, the rubber centering block 58 is fixed at the center thereof with a rotational central axis 58 through a key 58a, and the other side of the rotational central axis 58 is inserted into an internal bearing of the bearing block 70. It is fixed, the bearing block 70 is fixed to the side of the holder 72 is arranged vertically by the bolt (74).

On the other hand, one side of the bearing block 70, the other bearing 76 is mounted so as to face the side of the upper and lower knives (205a, 205b), respectively. As shown in FIG. 5, even if the bearing 76 is in contact with the side surfaces of the upper and lower knives 205a and 205b, the upper and lower knives 205a and 205b are independent of the bearing block 70. It is configured to rotate.

In addition, the mounting bracket 72 is mounted on the bearing block 52, as shown in Figures 2 and 3, consists of a configuration that is fixedly connected to one end of the rotary guide (37).

In addition, the present invention is provided with a ball bearing 80 for rotatably supporting the rotation guide 37 on the bracket 74 protruding from the support 12 to guide the movement of the rotation guide 37 The rubber rings 7a and 7b rotatably mounted at the front end have a guide portion 60 for accurately guiding the upper and lower knives 205a and 205b.

Hereinafter, the configuration of the guide unit 60 will be described in detail.

As the guide portion 60 is shown in detail in Figure 3, a plurality of ball bearings 80 are inserted between the upper cap (85a) and the lower cap (85b) is fixed by a bolt 81, the upper cap A bracket 74 is attached to 85a, and the bracket 74 is mounted in a state of being fixed to the support 12 by bolts.

The ball bearing 80 has a structure in which a pair is disposed to face each other, and the rotation guide 37 is disposed therebetween, and the ball bearing 80 is provided in guide grooves 37a provided on both sides of the rotation guide 37. 4 and 5, it is connected in the form of being inserted.

Referring to the operation and effects of the present invention made of the above configuration is as follows.

The present invention is disposed on the front side of the upper and lower knives 205a and 205b of the side trimmer 200, as shown in FIG.

The slide 5 is mounted on the side of the base 240 on which the upper and lower knives 205a and 205b of the side trimmer 200 are mounted. When the edge portion of the strip S is sandwiched between the lower knives 205a and 205b, the operator operates the moving cylinder 15 to move the rubber rings 7a and 7b to the upper and lower knives 205a and 205b. Advance to the side.

When the motor 34 of the rotating unit 30 is operated, the pinion gear 44 is rotated while the rotation shafts 32a and 32b are rotated, and the circular rotation guide 37 is engaged with the pinion gear 44. The rotary guide 37 is advanced between the ball bearings 80 of the guide part 60 by the rack gear 40, and the upper and lower rubber rings 7a fixed to the front end of the rotary guide 37 are provided. 7b is moved to the lower center of the upper and lower knives 205a and 205b.

At this time, the pulley 47 provided on the rotary shafts 32a and 32b and the rubber ring 7b on the lower side connected as the belt 50 are also operated at the same time.

The rubber ring 7b on the lower side is formed with a pass line about 1 mm higher than the outer diameter of the lower knife 205 b, and when the pass line does not fit, the bearing block 70 is formed by using the bolt 72a on the holder 72. It can be adjusted by raising or lowering, and once adjusted, the passline does not need to be readjusted.

And, the rubber ring 7a of the upper side is formed in the same way as the upper knife 205a, and if the pass line does not fit, it may be adjusted in the same way as the lower, and fixed to the rubber ring block 52 The ball bearings 76 are in close contact with the side surfaces of the upper and lower knives 205a and 205b, respectively.

In particular, the rubber ring 7a on the upper side has a cushion bag 54 supplied with air at an appropriate pressure through the air inlet 54a, so that the thickness of the strip S is changed during the edge cutting operation of the strip S. The pressure of the cushion bag 54 is adjusted according to the thickness of the strip S to achieve a buffering action. The ball bearings 76 closely attached to the side surfaces of the upper and lower knives 205a and 205b are upper and lower knives. Smooth rotation between the rubber rings 7a and 7b and the upper and lower knives 205a and 205b during the rotation of the 205a and 205b.

As described above, the present invention operates the motor 34 of the rotating part 30 in the opposite direction to the rubber ring 7a at the time of replacing the upper and lower knives 205a and 205b of the side trimmer 200. (7b) is removed from the upper and lower knives 205a and 205b, and the moving cylinder 15 is operated to move away from the upper and lower knives 205a and 205b, and the upper and lower knives 205a ( 205b) replacement is possible.

At this time, regardless of the outer diameter of the upper and lower knives 205a and 205b exchanged, the passlines of the rubber rings 7a and 7b are equally applied.

As described above, according to the present invention, the upper rubber ring 7a has a cushion bag 33 built therein, regardless of the thickness change of the strip S and the outer diameter of the upper and lower knives 205a and 205b. By enabling the use, the edge quality of the strip product is improved by preventing the knife wave, the knife mark and the bending mark which are generated when the edge of the strip S is cut.

In addition, there is an excellent effect of minimizing the storage standby demand of the rubber rings 7a and 7b and of improving workability by minimizing the knife 205a and 205b and rubber ring replacement time.

Claims (5)

In the rubber device used for the side trimmer 200 is provided with a rotating upper and lower knives (205a, 205b) to cut the edge of the strip (S) in the production of cold rolled products, Slide base 5 is provided on the base 240 on which the upper and lower knives 205a and 205b are mounted, respectively, and the support 12 and the support 12 are movable on the slide 5. The cylinder 15 for moving the is provided, and the rubber ring (7a) (7b) is provided on the upper and lower sides of the support 12, respectively, the rubber ring (7a) (7b) at the edge cutting of the strip (S) A rubber ring conveying unit 10 adapted to move toward the upper and lower knives 205a and 205b by the operation of the cylinder 15; Rotating shafts 32a and 32b are disposed vertically and vertically so as to be perpendicular to the support 12, and a motor 34 for rotating the upper rotating shaft 32a is provided, respectively, by the rotating shafts 32a and 32b. The movable arc-shaped rotary guide 37 is moved by the operation of the motor 34 so that the rubber rings 7a and 7b provided at the tip of the rotary guide 37 are directed to the upper and lower knife 205a and 205b. Rotating portion 30 to be moved; And, A ball bearing 80 is provided on the bracket 74 protruding from the support 12 to slidably move the rotation guide 37 to guide the movement of the rotation guide 37 so that the rubber ring ( A rubber trimming device for side trimmers, comprising: a guide part 60 for guiding 7a) and 7b) to the upper and lower knives 205a and 205b. According to claim 1, The rotating part 30 is a pulley 47 is mounted in the middle of the rotating shaft (32a, 32b), respectively, and the rotating shaft (32a, 32b) is connected to each other via a belt (50) The rotation part 30 simultaneously moves the rubber rings 7a and 7b provided on the rotation guide 37 through the rotation shafts 32a and 32b and the rotation guide 37 by the operation of the motor 34. A rubber ring device for side trimmers. The cylindrical ring bag 54 of claim 1, wherein the rubber ring 7a has a cylindrical cushion bag 54 provided with an air inlet 54a at an outer circumference of the rubber ring block 52. When the thickness of the strip S is changed during the edge cutting operation of the strip S, the pressure of the cushion bag 54 is adjusted according to the thickness of the strip S to cushion the action. Rubber device for According to claim 3, wherein the rubber block 52 is provided with a ball bearing 76 in close contact with the sides of the upper and lower knives (205a, 205b), respectively, when the upper and lower knives (205a, 205b) rotate. A rubber ring device for side trimmers, characterized in that smooth rotation is ensured between the rubber rings (7a) (7b) and the upper and lower knives (205a) (205b). According to claim 1, The rotary guide (37) is formed on both sides of the guide groove (37a) concave, the semicircular inner portion is formed with a circular rack gear 40, both sides of the guide groove (37a) The ball bearings 80 of the guide portion 60 are inserted and connected to each other, and one end of the circular rotation guide 37 is engaged with the pinion gear 44 connected through the motor 34 and the rotating shaft 32a. Rubber device for the side trimmer, characterized in that the fixed.

Images