JP4755878B2 - Twist roller guide - Google Patents

Description

  The present invention relates to a twist roller guide that guides and guides a rolled material discharged from a rolling roll while twisting.

As a conventional example, for example, a multi-stage steel slab twisting roller device described in JP-A-61-74720 has been proposed.
The multi-stage steel piece twisting roller device is provided with a guide box, and a guide sleeve and a roller holder for fixing the pass line position so as to coincide with the feed line of the material to be rolled are attached to the guide box. The roller exclusively twists the material to be rolled, and the twisting angle adjusting device is attached to the twisting roller so that the pass line can be adjusted in the vertical direction and the twisting angle can be adjusted. A tooth plate is provided in the circular plate for adjusting the torsion angle. The twisting angle is adjusted by rotating the twisting angle adjusting device so that the twisting roller rotates.
JP 61-74720 A

In the conventional example, the description of the specific structure of the multistage steel slab twisting roller device is omitted, but the implementation product of the multistage steel slab twisting roller device will be described within the scope that the applicant can grasp. The end of the holder is threaded, and this roller holder is rotatably incorporated in the guide box via the screw and the holder nut. For this reason, it is inferred that a clearance is generated in the rotating contact portion of the roller holder with respect to the guide box, and the wear is severe, so that it is necessary to periodically repair, and there is a problem in maintenance. Also, since the insertion part of the roller holder into the guide box is integrated with the roller holder, foreign matter (scale, etc.) enters the outside of the insertion part, and it is difficult to remove the roller holder due to rusting or corrosion, and rotation. It is predicted that defects may occur and the twist angle cannot be adjusted, and there are problems in durability and twist accuracy.
An object of the present invention is to improve durability, maintainability, and twisting accuracy.

A first feature of the present invention is a guide box provided with a holder fixing portion, a roller holder attached to the guide box, a pair of twist rollers, and a twist angle capable of adjusting the rotation angle of the roller holder. And an adjustment mechanism. The holder fixing portion has an insertion hole. The holder fixing portion is divided into an upper fixing portion and a lower fixing portion, and the upper fixing portion and the lower fixing portion are connected by a coupling means. The roller holder is provided with an insertion portion, the pair of twist rollers is provided on the roller holder with an eccentric shaft as a rotation center, and the insertion portion of the roller holder is the holder. It is rotatably inserted into the insertion hole of the fixed part.
The second feature of the present invention is based on the first feature, and the coupling means is provided between the first connecting portion and the first connecting portions provided on one side of the upper fixing portion and the lower fixing portion, respectively. A first connecting bolt for connecting the second connecting portion and a second connecting bolt for connecting the second connecting portions between the second connecting portions. Is that there is a gap.
The third feature of the present invention is based on the premise of the first or second feature. The insertion hole of the holder fixing portion is provided with a slope portion of an upward slope at the opening edge toward the opening end. The end portion of the insertion portion is provided with a gradient portion capable of contacting the gradient portion.
A fourth feature of the present invention is based on the premise of any one of the first to third features, and a torsion angle adjusting mechanism is provided on an adjustment plate provided outside the insertion portion of the roller holder, and an upper portion of the adjustment plate. The present invention consists of a formed gear and a twist pinion provided on the holder fixing portion and meshing with the gear.
According to a fifth feature of the present invention, on the premise of any of the first to fourth features, an inter-surface adjusting mechanism for adjusting the inter-surface adjustment between the pair of twist rollers is attached to the roller holder. The adjustment mechanism includes an eccentric shaft, a support shaft provided integrally with the eccentric shaft, a gear provided integrally with the support shaft, and a center pinion engaged with the gear.

  According to this invention, since the insertion portion of the roller holder is held by the holder fixing portion that is divided into the upper fixing portion and the lower fixing portion, it is not easy to remove the roller holder due to foreign matter mixing or rusting. Conventional problems can be solved, and durability, maintainability, and torsion angle accuracy can be improved.

  The twist roller guide shown in FIG. 1 includes a guide box 1, a roller holder 2, a pair of twist rollers 3, an inter-surface adjustment mechanism 4, and a torsion angle adjustment mechanism 5.

As shown in FIGS. 1 to 3, the guide box 1 in the twist roller guide is fixed on a guide base 6. On both sides of the guide box 1 (on the left and right sides in FIG. 1), a holder fixing portion 7 and a guide receiving portion 9 are provided facing each other at an interval.
As shown in FIGS. 1 and 4, the holder fixing portion 7 passes through an insertion hole 7 a in the center portion thereof in a direction perpendicular to the paper surface of FIG. 4. Gradient portions 7b1 and 7b2 are formed on the entire circumference of the opening edge portions on both sides of the insertion hole 7a of the holder fixing portion 7 in the axial direction toward the opening end (FIG. 7). Further, the holder fixing portion 7 is divided (divided into two) in the vertical direction from the center portion thereof, and the upper side is an upper fixing portion 8a and the lower side is a lower fixing portion 8b. The upper fixing portion 8a is detachably connected to the lower fixing portion 8b through a coupling means.
The coupling means will be described. As shown in FIGS. 4 to 6, the first connecting portion 8a1 and the first connecting portion 8b1 from one side (the left side of FIG. 4) of the upper fixing portion 8a and the lower fixing portion 8b. And the upper and lower opposing surfaces of these connecting portions are in contact with each other without a gap. The first connecting portion 8a1 and the first connecting portion 8b1 are connected to each other by a first connecting bolt 10, and for this purpose, one side portion of the upper fixing portion 8a and the lower fixing portion 8b is connected. . Further, the second connecting portion 8a2 and the second connecting portion 8b2 protrude from the other side (right side of FIG. 4) of the upper fixing portion 8a and the lower fixing portion 8b. The faces are opposed with a gap. The second connecting portion 8 a 2 and the second connecting portion 8 b 2 are connected by the second connecting bolt 11. The inner diameter of the insertion hole 7a is adjusted by widening or narrowing the space between the upper fixing portion 8a and the lower fixing portion 8b around the first connecting portions 8a1 and 8b1 by tightening the second connecting bolt 11. can do.
Further, in order to open the upper half of the insertion hole 7a of the holder fixing portion 7, the tightening of both the first and second connecting bolts 10 and 11 is loosened, and the first connecting portion 8a1 is moved to the first connecting portion. The second connecting portion 8a2 is removed from the second connecting portion 8b2, and the upper fixing portion 8a is lifted as shown by a chain line in FIG.

The roller holder 2 and the pair of twist rollers 3 will be described with reference to FIGS. 1 to 3 and FIG.
The roller holder 2 is provided with an insertion portion 2a as shown in FIG. Gradient portions 2b1 and 2b2 are provided on both sides of the insertion portion 2a. The roller holder 2 is formed with a flange 2c adjacent to the insertion portion 2a on one side (left side in FIG. 7), and a pair of twist rollers on the opposite side (left side in FIG. 7) from the insertion portion 2a across the flange. 3 is provided. As shown in FIGS. 1 and 3, the twist roller 3 is attached to the roller holder 2 with an eccentric shaft 12 a provided on the support shaft 12 as a rotation center. The eccentric shaft 12a is formed integrally with the support shaft 12 at the upper portion thereof. The support shaft 12 is rotatably disposed in the roller holder 2 and is in an interlocking relationship with the inter-surface adjustment mechanism 4.
An adjustment plate 13 is integrally provided on the outer peripheral portion (right side in FIG. 7) of the insertion portion 2a of the roller holder 2, and the upper portion is formed in a fan shape. A guide sleeve 14 is inserted into the other side of the roller holder 2.

Here, the relationship between the guide box 1 and the roller holder 2 will be described.
As shown in FIGS. 1 and 7, the insertion portion 2 a of the roller holder 2 is rotatably inserted into the insertion hole 7 a of the holder fixing portion 7. The flange 2c of the roller holder 2 and the adjustment plate 13 are positioned so as to sandwich the holder fixing portion 7 from both sides.
In a state where the insertion portion 2a is inserted into the insertion hole 7a of the holder fixing portion 7, the gradient portions 2b1 and 2b2 are in contact with the gradient portions 7b1 and 7b2 of the insertion hole 7a, respectively (FIG. 7). The insertion portion 2 a is held in the insertion hole 7 a by tightening the first and second connecting bolts 10 and 11 on both sides of the holder fixing portion 7.
By the bolt operation of the second connecting bolt 11, the distance between the second connecting portion 8a2 and the second connecting portion 8b2 is adjusted in the upper fixing portion 8a with respect to the lower fixing portion 8b, and the insertion hole of the holder fixing portion 7 is adjusted. The fixing by the holder fixing portion 7 to the insertion portion 2a of the roller holder 2 inserted in the roller 7a is adjusted. At the time of fixing, since the inclined portions 7b1 and 7b2 on the inner periphery of the insertion hole 7a give a load to the inclined portions 2b1 and 2b2 of the inserting portion 2a, the roller holder 2 is strongly fixed to the holder fixing portion 7 and has a backlash. It is held in the state without.

The inter-surface adjustment mechanism 4 includes a gear 15, a pedestal 16, and center pinions 17a and 17b as shown in FIGS.
Each gear 15 is formed integrally with each support shaft 12 and is exposed laterally from the outer surface of the roller holder 2. The pedestal 16 is mounted on the roller holder 2. Center pinions 17 a and 17 b that are in a reverse screw relationship with each other are rotatably attached to the pedestal 16, and each center pinion meshes with the gear 15.
By rotating the center pinions 17a and 17b, the eccentric shaft 12a rotates through the support shaft 12 as the gear 15 rotates, and the distance between the surfaces of the pair of twist rollers 3 can be adjusted.

The torsion angle adjusting mechanism 5 will be described with reference to FIGS. 1 and 4 to 6.
The torsion angle adjustment mechanism 5 includes an adjustment plate 13, a gear 18, and a twist pinion 19.
As described above, the adjusting plate 13 is provided on the right outer periphery of the roller holder 2 in FIG. 1 and is disposed outside the holder fixing portion 7. The gear 18 is formed of a male screw formed on the outer periphery of the upper portion of the adjustment plate 13. The twist pinion 19 is held by an operation shaft 21 that is supported by a bearing 20 attached to the upper portion of the holder fixing portion 7. The twist pinion 19 is engaged with the gear 18.
By operating the operating shaft 21 and rotating the twist pinion 19 by a predetermined angle, the roller holder 2 can be rotated by a predetermined angle integrally with the adjustment plate 13 via the gear 18 meshing with the twist pinion, and at the same time, the twist roller The axial direction of 3 can be inclined. As a result, the twist angle can be adjusted through the rotation operation of the twist pinion 19.

  In FIG. 1, a twist guide 23 is inserted into the guide receiving portion 9 and is fixed to the guide receiving portion by a push bolt 22. One end portion (the right end portion in FIG. 1) of the twist guide 23 faces the exit of the rolling roll (not shown), and the other end portion protrudes from the side surface of the guide receiving portion and faces the guide sleeve 14. ing.

Next, a method of using the illustrated twist roller guide will be described.
In advance, the upper fixing portion 8a is cut above the lower fixing portion 8b, the upper side of the insertion hole 7a is opened, and the insertion portion 2a of the roller holder 2 having the pair of twist rollers 3 is set in the insertion hole. Thereafter, the upper fixing portion 8a is put on the lower fixing portion 8b, and the upper fixing portion and the lower fixing portion are connected by the first and second connecting bolts 10 and 11, so that the insertion portion can be rotated into the insertion hole. Hold.
When holding, the upper fixing portion 8a adjusts the distance between the second connecting portion 8a2 and the second connecting portion 8b2 with respect to the lower fixing portion 8b by the bolt operation of the second connecting bolt 11, and the insertion hole 7a. The holding force by the holder fixing portion 7 with respect to the insertion portion 2a inserted into the insertion hole is adjusted.
After the roller holder 2 is placed in the holder fixing portion 7, the distance between the surfaces of the pair of twist rollers 3 is adjusted using the surface adjustment mechanism 4. That is, as shown in FIG. 1, one center pinion 17a, 17b is rotated and the distance between the surfaces of the pair of twist rollers 3 is adjusted through the support shaft 12 and the eccentric shaft 12a through the rotation of the gear 15. Set a proper distance between faces.
Further, the degree of twist of the rolled material S (FIG. 2) proceeding from the rolling roll is confirmed, and the twist angle is adjusted using the twist angle adjusting mechanism 5 in order to prevent twist.
The torsion angle is adjusted by the torsion angle adjusting mechanism 5 by rotating the twist pinion 19 by a predetermined angle, rotating the roller holder 2 by a predetermined angle via the gear 18 and the adjusting plate 13, and tilting about the axis of the twist roller 3. To do.
After finishing the inter-surface and twist angle adjustment work, the rolling material S rolled from the rolling roll is guided and guided in the left direction in FIG.
In the guiding and guiding stage, the rolled material S is advanced to the left in FIG. 1 through the twist guide 23 and the guide sleeve 14, but is guided while being entrapped by the pair of twist rollers 3 whose torsion angles are adjusted.
At the time of replacement or maintenance of the pair of twist rollers 3, the first and second connecting bolts 10 and 11 are released from tightening, and the upper fixing portion 8a of the holder fixing portion 7 is moved to the lower fixing portion as shown by a chain line in FIG. Separated from 8b.

  According to the illustrated roller guide, since the upper side of the insertion hole 7a can be opened through the operation of separating the upper fixing portion 8a from the lower fixing portion 8b (operation of separating) by dividing the holder fixing portion 7 in half, The problem that the roller holder cannot be easily or impossiblely removed due to contamination of the scale or the like or rusting is solved. Since the insertion portion 2a is inserted and held in the insertion hole 7a of the holder fixing portion 7, the gradient portions 2b1 and 2b2 are in contact with the gradient portions 7b1 and 7b2 of the insertion hole 7a. In this state, no wear due to looseness is eliminated, and durability, maintainability, and torsional accuracy can be improved.

As shown in FIG. 4, the upper fixing portion 8a of the holder fixing portion 7 is separated from the lower fixing portion 8b. However, a fulcrum portion such as a hinge is provided on one side, and the upper fixing portion 8a is rotated around this fulcrum portion. As possible, the upper side of the insertion hole 7a may be opened.
The adjustment by the inter-surface adjustment mechanism 4 is based on the center distribution centering on the pass line, but is not limited to this type of center distribution mechanism.

It is a front view which shows the twist roller guide which concerns on this invention. It is a side view which shows the twist roller guide which concerns on this invention. It is a top view which shows the twist roller guide which concerns on this invention. It is a partial cross section side view which shows the holder fixing | fixed part of the guide box in the twist roller guide which concerns on this invention. It is a side view which shows the upper fixing | fixed part of the holder fixing | fixed part in the twist roller guide which concerns on this invention. It is an enlarged front view which shows the upper fixing | fixed part of the holder fixing | fixed part in the twist roller guide which concerns on this invention. It is an enlarged front view which shows the roller holder and twist roller in the twist roller guide which concern on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Guide box 2a Insertion part 2 Roller holder 2b1, 2b2 Gradient part 3 Twist roller 4 Inter-surface adjustment mechanism 5 Torsion angle adjustment mechanism 7 Holder fixing part 7a Insertion hole 7b1, 7b2 Gradient part 8a Upper fixing part 8b Lower fixing part 8a1, 8b1 1st connection part (connection means)
8a2, 8b2 Second connecting portion (coupling means)
DESCRIPTION OF SYMBOLS 10 1st connection bolt 11 2nd connection bolt 12 Support shaft 12a Eccentric shaft 13 Adjustment plate 15 Gear 17a, 17b Center pinion 18 Gear 19 Twist pinion S Rolling material

Claims (5)

A guide box provided with a holder fixing portion, a roller holder attached to the guide box, a pair of twist rollers, and a twist angle adjustment mechanism capable of adjusting the rotation angle of the roller holder;
The holder fixing portion has an insertion hole. The holder fixing portion is divided into an upper fixing portion and a lower fixing portion, and the upper fixing portion and the lower fixing portion are connected by a coupling means. Can be opened through the movement of the fixed part,
The roller holder has an insertion part,
The pair of twist rollers is provided in the roller holder with an eccentric shaft as a rotation center,
The twist roller guide, wherein the insertion portion of the roller holder is rotatably inserted into the insertion hole of the holder fixing portion.   The coupling means is provided on each of the first connecting part and the first connecting bolt provided on one side of the upper fixing part and the lower fixing part, respectively, and on the other side part. 2. A second connecting part and a second connecting bolt for connecting the second connecting parts, and a gap is formed between the second connecting parts. Twist roller guide.   The insertion hole of the holder fixing part is provided with a slope part that rises toward the opening end at the opening edge, and a slope part that can contact the slope part is provided at the end part of the insertion part of the roller holder. The twist roller guide according to claim 1, wherein the twist roller guide is provided.   The torsion angle adjustment mechanism includes an adjustment plate provided outside the insertion portion of the roller holder, a gear formed on the adjustment plate, and a twist provided on the holder fixing portion and meshing with the gear. The twist roller guide according to claim 1, comprising a pinion.   An inter-surface adjustment mechanism for adjusting the distance between the surfaces of the pair of twist rollers is attached to the roller holder. The inter-surface adjustment mechanism includes an eccentric shaft, a support shaft provided integrally with the eccentric shaft, and the support shaft. The twist roller guide according to any one of claims 1 to 4, further comprising a gear integrally provided with the center pinion and a center pinion meshing with the gear.

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