KR950007162Y1 - Auto control roller guide use tension spring - Google Patents

Abstract

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Description

Self-aligning roller guides with tension springs

1 is a perspective view, a side view, a plan view, and an operation state of a guide leaf of a conventional roller guide.

2 is a diagram illustrating problems when a rolled material larger or smaller than a set value is input to a conventional roller guide.

3 is a view for explaining a perspective view, a front view, a plan view and the operating state of the guide leaf of the roller guide of the present invention.

* Explanation of symbols for main parts of the drawings

1: guide body 2: guide leaf

2-1: Leaf Arm 3: Roller

3-1: Left roller 3-2: Right roller

4: Static guide 5: Front adjustment screw

6: rear adjustment screw 7: pivot pin

8: Taper Roller Bearing 9: "ㄷ" shaped ring

9-1: upper left ring 9-2: upper right ring

9-3: Lower left ring 9-4: Lower right ring

10: tension spring 10-1: upper spring

10-2: lower spring

The present invention relates to a self-aligning roller guide for inserting a rolled material into the roll hole in the rough rolling of the wire.

Vallet, a raw material for wire rod rolling, is heated in a heating furnace for about 90 minutes, extracted to a state of about 1,100 °, and finished through rough rolling, intermediate rough rolling, intermediate finishing rolling, and finishing rolling. In this case, the material is operated in an oval shape through an oval roll shape, and then rotated by 90 ° in an exit twist guide, and then processed in a round shape through a round shape. If the exact direction and angle are not maintained when the material is inserted, the material rotates in an arbitrary direction and is inserted into the roll mold in an oblique state, causing roll spreading phenomena, causing ear and overlapping accidents in the material. At the front end of the roll die, static guides and roller guides are installed to allow the material to be inserted into the roll die in the correct direction and angle.

FIG. 1A is a perspective view of a conventional roller guide, FIG. 1B is a side view, and FIG. 1C is a plan view. Guide leaf which is rotatable about pivot pins 7 inserted on both upper and lower sides of the guide body 1 and which can be adjusted and fixed by the front adjustment screw 5 and the rear adjustment screw 6 on both sides. (2) is coupled to both sides of the guide body (1), the leaf arm (2-1) of the guide leaf (2) is provided with a bearing (8) therein and a roller in direct contact with the rolled material ( 3) is coupled, the inside of the guide body (1) there is a space in which the static guide (4) can be inserted.

FIG. 1D is a diagram for explaining an operating state of a conventional roller guide leaf. When tightening the front adjustment screw (5) and loosening the rear adjustment screw (6), the arm (2-1) of the guide leaf (2) is tilted outward while rotating about the pivot pin (7), so that the roller (3) It will happen. Also, loosening the front adjustment screw (5) and tightening the rear adjustment screw (6), the leaf arm (2-1) of the leaf (2) is inclined inward while rotating about the pivot pin (7), so that the roller (3) It will be retracted inward. When the gap is adjusted as necessary as described above, while adjusting the left roller 3-1 and the right roller 3-2 with respect to the center line of the guide body 1, the front adjusting screw 5 and the rear adjusting screw ( Tighten all 6) to fix the guide leaf (2) to move. The tips of the front adjustment screw (5) and the rear adjustment screw (6) do not proceed any further when they touch the surface of the static guide (4), so tightening both the front adjustment screw (5) and the rear adjustment screw (6) will remove the guide leaf ( 2) is fixed.

In the conventional roller guide as described above, the gap between the left roller 3-1 and the right roller 3-2 is fixed to be equal to the material diameter expected value. However, the diameter of the material changes sensitively depending on the change of rolling speed, steel grade, temperature, etc., especially when the material is inserted into the roll mold because the difference is severe in the top and the bottom of the material. If there is a case where the preset roller clearance of the roller guide and the diameter of the material do not coincide, there is no way to cope with the conventional fixed roller guide, specifically, as shown in FIG. In the case where the raw material X larger than the gap between the 3-1 and the right roller 3-2 is inserted, the left roller 3-1 and the right roller 3-2 are exerted and the inner bearing 8 Of the roller guide to shorten the life of the roller guide, and as shown in FIG. 2B, when the material Y smaller than the preset left roller 3-1 and the right roller 3-2 is inserted therein, the left roller Material in the space between 3-1 and right roller 3-2 Is rotated in an arbitrary direction and obliquely prevents a smooth transfer, and is inserted into a round roll, causing a wide spread phenomenon, causing ear and overlapping accidents in the round material.

The present invention is to solve the above problems, the roller gap is automatically adapted to the change of the diameter of the material within a certain margin width with respect to the diameter change of the supplied material automatically absorbs the shock It is an object of the present invention to provide a self-aligning roller guide using a tension spring capable of automatically guiding the guide leaf against the centerline of the guide body and inserting the material in the correct direction and angle.

In order to achieve the above object, the present invention attaches and installs "c" shaped rings on the upper and lower sides of the left and right guide leaf arms, respectively, and installs upper and lower tension springs on the rings, thereby guiding the guide leaf arms by the tension of the springs. The guide leaf arm is opened by the insertion of the material, but the upper and lower limits of the opening degree are configured to be set by the rear adjustment screw and the front adjustment screw, respectively.

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

Figure 3a is a perspective view of the roller guide of the present invention, Figure 3b is a front view, Figure 3c is a plan view. Attaching and installing the "c" shaped ring 9 on the upper and lower sides of the left and right guide leaf arms 2-1, the upper left ring 9-1 and the upper right ring 9 of the "c" shaped ring 9 -2), the lower left ring (9-3) and the lower right ring (9-4) each constitute a pair, a set of "c" shaped ring (9) is located opposite to each other so that the open side toward each outside Install. Next, an upper spring 10-1 is installed in the upper left ring 9-1 and the upper right ring 9-2, and the lower left ring 9-3 and the lower right ring 5-4 are attached. Install the lower spring (10-2).

Hereinafter will be described the operation of the present invention.

3d is a view for explaining an operating state of the roller guide leaf of the present invention. In order to set the gap margin between the left roller 3-1 and the right roller 3-2 in case the material diameter is smaller than expected, the front adjustment screws 5 on both the left and right sides are adjusted.

For example, if the material diameter is less than 10% smaller than expected, adjust the front adjustment screw (5) to adjust the clearance between the left roller (3-1) and the right roller (3-2) than the expected value. % Set smaller. The front adjustment screw 5 defines the limit at which the roller 3 is effectively retracted, that is, the limit of the minimum diameter of the material that can be accommodated effectively. Next, in order to set the gap margin width between the left roller 3-1 and the right roller 3-2 when the material diameter is larger than the expected value, the ends of the rear adjusting screws 6 on both the left and right sides of the static guide 7 Adjust the rear adjustment screw (6) while making contact with the surface, or adjust the rear adjustment screw (6) by calculating the pitch x rotation of the rear adjustment screw (6). For example, if the material diameter is up to 10% larger than expected, the rear adjustment screw (6) can be adjusted to adjust the clearance between the left roller (3-1) and the right roller (3-2). % Set it to large. The rear adjustment screw 6 defines the limit at which the roller 3 opens, that is, the limit of the maximum diameter of the material that can be accommodated. After setting the rear adjustment screw 6, the tip of the front adjustment screw 5 touches the surface of the static guide 4 due to the tension of the tension spring 10, and the end of the rear adjustment screw 6 is the static guide ( In a state of being separated from the surface of 4), the roller 3 is kept in the size of the gap for the material of the smallest diameter.

After the setting for the material diameter margin width is completed, the material passes through the static guide 4 and is inserted between the left roller 3-1 and the right roller 3-2. If the material diameter falls within the margin width range, the left roller 3-1 and the right roller 3-2 are rotated outward about the pivot pin 7 so that the front adjustment screw (5) and the rear adjustment screw (6) The left roller 3-1 and the right roller 3-2 are brought into close contact with each other by the tension of the tension spring 10 in the state that they do not touch the static guide 4 so that the direction and angle of the I can keep it. The maximum range in which the guide leaf 2 can be opened is as much as the space between the tip of the rear adjustment screw 6 and the surface of the static guide 4.

Therefore, according to the present invention as described above, by adding a ring and a spring which is a simple device to the existing roller guide, and by setting the upper and lower margin width for the change of the diameter of the material to be inserted, the gap between the left roller and the right roller is elastically corresponding. Absorbs shock, self-aligning guide leaf prevents damage to rollers and bearings, extends guide life, facilitates smooth transfer of material and prevents bad machining of material, thus reducing costs by simply applying in the field It is a very practical design with the effect of improving productivity.

Claims (1)

In the self-aligning roller guide for inserting a rolled material into the roll hole by roughing the wire rod, the upper left ring (9-1) and the upper right ring (9-2), above and below the left and right guide leaf arms (2-1), The lower left ring (9-3) and the lower right ring (9-4) form a pair, and the "c" shaped ring 9 is fixedly installed so that the open side faces outward, respectively, and the upper left ring (9-) 1) and the upper spring 10-1 are installed in the upper right ring (9-2) and the lower spring (10-2) in the lower left ring (9-3) and the lower right ring (9-4). Self-aligning roller guide using a tension spring, characterized in that configured by.