JPS5947611B2 - Twist roller guide twist angle fine adjustment device - Google Patents

Description

[Detailed description of the invention] In a continuous rolling device that rolls long steel such as wire, bar, and strip using a horizontal rolling mill, the material to be rolled (hereinafter referred to as "rolled copper") that is rolled out from the rear rolling roll is In the present invention, the rolled copper guide device is received by an exit side twisting guide device, twisted and erected, held by an inlet guide device, and then introduced into the rolling biting position of the next stage rolling roll in the forward direction in a twisted erected manner. In the twist roller guide, which belongs to the twisting guide device on the exit side of , and is equipped with a pair of upper and lower twist rollers, the twist angle given to the rolled copper by the twist rollers is finely adjusted, and the rolled copper rolled out from the rear rolling roll is The present invention relates to a device for finely adjusting the twisting angle so that the next rolling roll reaches the biting position at an appropriate upright angle.

An advanced device for adjusting the twisting angle of a twist roller guide is disclosed in Utility Model Application No. 52-138073 (Utility Model Application No. 54-64).
There is a twist angle adjusting device described in the specification of No. 143).

This adjustment device is equipped with a fan-shaped worm wheel on the upper edge of a gear plate provided on a roller holder that is tiltably supported by a guide box, and a torsion angle adjustment device that engages with the fan-shaped worm wheel on the guide box. A worm and a fan-shaped worm wheel with a worm supported on its axis.
This is a one-stage reduction system, and by manually rotating the adjustment worm, the fan-shaped worm wheel portion is rotated by a small angle, and the inclination angle of the roller holder is adjusted.

Since this adjustment is performed steplessly and the feed of the adjustment worm is small, the inclination angle of the roller holder, that is, the twisting angle applied to the pressed copper by the pair of twist rollers supported by the roller holder, can be adjusted quite finely. be able to.

However, the required twist angle to be applied to the pressed copper with the twist roller guide is often required to be more finely and precisely adjusted.

In such a case, it is difficult to meet the demand accurately with the one-stage reduction method using only the above-mentioned set of worms and sector-shaped worm wheels.

The present invention, which was developed to solve the above-mentioned difficulty in setting fine adjustments, has a fine adjustment device that is attached to a torsion angle adjustment worm that engages with a fan-shaped worm wheel provided in a roller holder, and that finely rotates the worm at a larger reduction ratio. with the addition of 2
The first object of the present invention is to obtain a torsion angle fine adjustment device using a stepped reduction method.

It is also an object of the present invention to provide a device that allows fine adjustment of the twist angle to be easily performed by manual operation.

Still another object of the present invention is to provide a device that can be separated from the fine movement device to rapidly advance the roller holder when the inclination angle of the roller holder is desired to be changed greatly at one time.

As a result, the advantages of the one-stage reduction method and the two-stage reduction method can be shared and used.

In order to achieve the above object, in the device of the present invention, the gear plate portion of the roller holder is formed into a sector-shaped worm wheel portion having a large tooth profile with a deep cut.

And the horizontal adjustment worm that meshes with this,
Similarly, it is formed into a worm having large teeth with deep cuts (large tooth height and pitch).

On the circumferential surface of the threaded teeth of the worm, small threaded teeth are carved in necessary portions to form a worm wheel toothed portion for another worm having small threaded teeth that mesh with the threaded teeth.

The latter worm is vertically supported by a shaft that rotates together with the worm, and engages with worm wheel teeth formed on the circumferential surface of the worm and worm wheel for adjusting the horizontal arrangement.

The vertical shaft of the other worm described above has an angular shaft for rotary tool applications and can be rotated manually.

Since the rotation of the worm rotates the worm and worm wheel at a large reduction ratio, the fan-shaped worm wheel portion and the roller holder that rotates together with the fan-shaped worm wheel portion are slightly rotated.

The horizontal shaft portion which rotates integrally with the worm and worm wheel also has a square shaft portion at its shaft end, and the worm is supported so as to be movable in the direction of the engagement and release force relative to the worm and worm wheel. .

When the worm is separated from the worm and worm wheel,
The worm and worm wheel can be directly rotated manually.

This rotation is useful for operations that rapidly change the tilt angle of the roller holder.

The details of the configuration of the present invention and the effects of the details of the present invention explained above will be explained in detail below using specific examples.

Figures 1 to 3 illustrate the entire device of the present invention.
The guide box, designated as a whole by reference numeral 1, has a base 11 with a clamp 18, a bolt nut 19, and a restper 1.
Fixed above 0.

The front part of the guide box 1 is provided with a front body part 12 having a circular through hole 13 with the pass line XX as the axis,
A cylindrical hollow shaft portion 31 of the roller holder 30 is rotatably fitted into the through hole 13 thereof.

The roller holder 3 has a large diameter portion 3 along the front surface of the front body portion 12.
2 and a collar-shaped gear plate portion 33, and a hollow shaft portion 31.
The rear end part has a male threaded part 34, and by screwing a holder lock nut 35 into this male threaded part, the front body part 12
It is supported by the front body part in a rotatable but non-removable manner.

The twist guide insertion hole 36 of the hollow shaft portion of the roller holder is concentric with the through hole 13 of the guide box, and the front cylindrical portion 21 of the twist guide 2 is fitted into this small through hole.

The rear portion of the twist guide 2 is supported by a U-shaped support 14 at the rear of the guide box and fixed by a twist guide press plate 15.

15' is a bolt for fixing the same. The front end portion of the roller holder 3 is provided with a pair of left and right roller support plates 37a, 37b, and between both support plates, a pair of upper and lower twisted rollers 4a,
4b are vertically symmetrically supported around the pass line.

The pair of twist rollers 4a and 4b are of a known type in which two rollers each having a cylindrical body in which one half is formed as a large-diameter flange are arranged symmetrically, and support plates 37a on both sides
, 37b, the eccentric shaft portion 42 of the pair of upper and lower eccentric gear shafts 41a and 41b rotatably bears,
Rotatably supported.

When the coupling adjustment worm wheels 43a and 43b provided at one end of each of the eccentric gears 41a and 41b are rotated by equal amounts in opposite directions, the upper and lower twist rollers are moved to a vertically symmetrical distribution centering on the pass line. do.

As a result, the distance between the tapered surfaces 40, 40 of both twist rollers is adjusted in size, and the state of engagement of the pressed copper W (FIG. 3) is optimized.

44a and 44b are worm wheels, and 43a. A coupling adjustment worm screwed with 43b, 45 is both worms 44a
, 44b is rotated, and 46 is its corner shaft portion;
47 is a bearing portion of the shaft 45.

When a suitable rotary tool is applied to the square shaft portion 46 and the coupling adjustment shaft is rotated, the upper and lower worm wheels 43a.

43b rotates in equal amounts in opposite directions to adjust the engagement of the pair of twist rollers.

However, since this point is not the gist of the present invention, further detailed explanation will be omitted.

The front end 22 of the twist guide 2 is opened close to the rear of the pair of twist rollers, and the rolled copper receiving opening 23 at the rear end of the twist guide is opened close to the rear of the pair of twist rollers.
The caliber groove of No. 2 is located close to and opposite to the caliber groove of No. 2.

The gear plate portion 33 of the roller holder has a tooth profile engraved on a fan-shaped surface centered on the pass line as in the conventional device, but in the device of the present invention, this portion is enlarged as shown in Fig. 4 and below. As shown, the tooth profile is formed in a fan-shaped worm wheel portion 30 which is relatively large and deep.

The worm 5 that engages with this sector-shaped worm wheel portion 30 is horizontally supported near the front edge of a pair of upper brackets 16. 5 has screw teeth 51 that are large and deep to match the large teeth described above.

The sector-shaped worm wheel portion 30 and the worm 5 constitute a twisting angle adjusting device for the twist roller, which is substantially similar to conventional devices.

The worm 5 is pivotally supported by the upper brackets 16, 16 on both sides by a horizontal worm shaft (referred to as a "horizontal shaft" in the following description) 52 that rotates integrally with the worm 5.

A square shaft portion 53 is provided at the shaft end of the horizontal shaft 52 for use with tools.

The torsion angle fine adjustment device of the present invention is comprised of a toothed portion 50 carved on the circumferential surface of the worm 5 and another worm 6 that meshes with the toothed portion 50.

The screw teeth 51 of the worm 5, that is, the worm and worm wheel 5 having a large tooth profile, have teeth as a worm wheel that mesh with the worm 6, which will be described below, on one half of the outer circumferential side (approximately V3 of the height of the teeth). Part 50 (5th
．． (see Figure 6) is engraved.

The other worm 6 rotates integrally with a worm shaft (hereinafter referred to as "vertical shaft") 62 in the vertical force direction, which is supported by the frame 7 and which is mounted on the upper bracket 16. However, a fine screw @61 that can engage with the worm wheel teeth 50 is provided on the peripheral surface of the main body having a relatively large diameter to form a worm with a small feed rate.

Since the walk 6 has a fairly large diameter, it intersects the threaded teeth 51 of the worm and worm wheel 5 at multiple parts in the center, so the small teeth carved in these parts are a series of worm wheel teeth. 50.

Of the outer circumferential surface of the screw @51 of the worm and worm wheel 5, teeth may be omitted in a portion that cannot engage with the worm 6.

The means for vertically supporting the vertical shaft 62 behind the worm and worm wheel 5 is arbitrary, but in the illustrated embodiment, an upward U-shaped receiving frame that can be loosely fitted between the upper brackets 16 and 160 on both sides is used. 711 and the upper brackets 16 on both sides extending horizontally from the upper end thereof to both sides.
16, a lower bearing frame 71 consisting of a mounting plate portion 712, which overlaps the upper surface of the mounting plate portion 712, a fixed plate portion 721, which overlaps the upper surface of the mounting plate portion 712, and a bearing boss 722 protruding below the fixed plate portion 721.
and an upper bearing frame 72, which is detachably attached to the bracket.
The vertical shaft 62 is supported by the upper bearing part 723 (FIG. 6) and the lower bearing part 713.

The bearing frame 7 includes bearing frame fixing bolts 73.73 that pass through both ends of the fixing plate part 7210 of the upper bearing frame and the mounting plate part 712 of the lower bearing frame and are screwed into the screw holes of the upper bracket.
is fixed to the upper surface of the upper bracket 16.

In this state, the lower surface of the bearing boss 722 tightly sandwiches the main body of the worm 6 with the boss portion 714 of the lower bearing frame.
Preventing its axial displacement.

Mounting plate portion 71 for inserting the bearing frame fixing bolt 73
The bolt insertion holes 74 provided at both ends of the fixing plate portion 7210 and the fixing plate portion 7210 are formed into elongated holes extending toward the worm and worm wheel 5.

Therefore, for example, when one bolt 73 is loosened, the entire bearing framework 7 can be moved rearward together with the worm 6 as shown by chain lines 7a and 6a.

Reference numeral 75 denotes a gap in the reservoir that enables such tilting.

When the bearing framework 7 is fixed in the normal position, the fine screw teeth 61 of the worm 6 mesh with the worm wheel teeth 50 on the outer periphery of the worm and worm wheel 5.

Therefore, when the worm 6 is rotated by applying an appropriate tool to the square shaft part 63 for fine adjustment provided at the upper protruding end of the vertical shaft 62, the worm and worm wheel interlock with this through the worm wheel tooth part 50. 5 is rotated by a minute angle, and the fan-shaped worm wheel portion 30 of the roller holder 3 is minutely rotated by the amount of rotation.

If the worm-cum-worm wheel 5 and the further worm 6 each have a twist direction as shown, the vertical axis 6
2 is rotated clockwise in FIG. 5, the worm and worm wheel 5 is rotated clockwise in FIG.

The sector-shaped wormwheel portion 30 is therefore driven in a counterclockwise direction in FIG.

As a result, the roller holder 3 also tilts in the same direction, and the upper and lower twist rollers 4a that are pivotally supported by the roller holder 3
The twist angle given to the pressed copper W by the tapered surface 40.40 of 4b increases.

It goes without saying that rotating the vertical shaft 62 in the opposite direction will result in the opposite effect.

With the above configuration, the reduction ratio between the worm 6 and the worm/worm wheel 5 interlocked via the worm wheel teeth 50 is extremely large.

Therefore, the increase/decrease adjustment of the twist angle made by rotating the worm 6 is smaller and more precise than the rotation angle of the worm 6.

In the device of the present invention, a tooth profile is provided on a part of the outer periphery of the threaded teeth 51 of the worm and worm wheel 5 in order to constitute a fine adjustment device, but the depth of the teeth is sufficient to be less than 01/3 of the tooth height. Therefore, the pitch circle of the worm and worm wheel 5 is not changed.

On the other hand, the force acting as a load on the threaded teeth 51 of the worm and worm wheel 5 is a load transmitted through the sector-shaped worm wheel portion 30 from the twisting load of the twist rollers 4a, 4b.

That is, the twisting load of the twist roller is a torque that acts on the twisting point TP (vertically symmetrical) with the twisting radius r when the pressed copper W comes into contact with the tapered surface 40 of the upper and lower twisting rollers.
This load is received by the screw @51 of the worm wheel 5 via the teeth of the worm wheel portion 30.

Incidentally, since the pitch circle radius R of the sector-shaped worm wheel portion 30 is much larger than the torsional radius r, the load applied to the screw teeth 51 is greatly reduced compared to the torsional load of the pressed copper.

Therefore, the screw teeth 510 of the worm and worm wheel 5
The strength is not sufficient to be a practical problem.

The structure of the movable bearing framework 7 that allows the worm 6 and the worm wheel teeth 50 to be freely engaged and disengaged enables a rapid forward operation to roughly adjust or change the twisting angle by the twist roller. When the worm 6 is detached from the worm wheel tooth section 50 as shown by the chain line in FIG. .

Thereby, the inclination angle of the roller guide 3 can be changed quickly.

After roughly setting the torsion angle given by the light roller with this rapid traverse, by setting the bearing framework 7 in the normal position and finely adjusting the torsion angle, fine adjustment of the stump can be performed efficiently and extremely precisely. .

The present invention as described above has advanced the conventional one-stage deceleration type adjustment device using a worm and worm wheel set into a device that is capable of much finer fine adjustment by adopting a two-stage deceleration fine adjustment method. Tamome has the effect of solving the conventional requirement for high precision setting of the twist angle in twist rolling of rolled copper at once, improving the rolling accuracy of rolled copper, and greatly contributing to obtaining good products. be.

[Brief explanation of the drawing]

The drawings show a specific example of a twisted roller guide embodying the present invention; FIG. 1 is a side view of the entire guide, FIG. 2 is a plan view of the same, and FIG. 3 is an upper twisted roller and a right roller support plate. Fig. 4 is an enlarged elevational view of the movable bearing frame as seen in the direction of the line ■-■ in Fig. 2, and Fig. 5 is a partially cut away front view of the movable bearing frame. The enlarged plan view and FIG. 6 are side views with the front upper bracket removed. 1... Guide box, 2... Twist guide, 3... Roller holder, 4a, 4b.
...Twist roller, 33...Gear plate part, 5...Worm and worm wheel, 6...
... Worm, 7... Bearing framework.

Claims (1)

[Scope of Claims] 1. A guide box 1 that rotatably supports a roller holder 3 that supports upper and lower integrated twist rollers 4a and 4b about a pass line, and a front body portion 1 of the guide box.
2, a gear plate part 33 integral with the roller holder 3; a fan-shaped worm wheel part 30 provided on the upper surface of the gear plate part 33; a pair of upper brackets 16 and 16, a worm and worm wheel 5 that rotates integrally with a worm shaft 52 that is horizontally supported near the front edge of the upper bracket, and meshes with the sector-shaped worm wheel portion 30; The worm wheel teeth 50 provided on the outer periphery of the threaded teeth 51 of the worm wheel 5 and the bearings provided on the pair of upper brackets 16 and 16 are pivotally supported by a frame 7 for the bearings, The worm shaft 62 includes a worm shaft 62 having an angular shaft portion 63 for fine adjustment at the shaft end, and another worm 6 that rotates integrally with the worm shaft 62 and meshes with the worm wheel teeth 50 of the worm and worm wheel 5. Features: Twist roller guide twist angle fine adjustment device. 2. A guide box 1 that rotatably supports a roller holder 3 supporting a pair of upper and lower twist rollers 4a and 4b about a pass line, and a front body portion 12 of the guide box.
A gear plate part 33 is provided along the front surface of the roller holder 3 and is integral with the roller holder 3, a fan-shaped worm wheel part 30 is provided on the upper surface of the gear plate part, and a gear plate part 33 is provided along the front surface of the front body part 12, and a gear plate part 33 is provided along the front surface of the front body part 12, and a gear plate part 33 is integral with the roller holder 3. A pair of upper brackets 16, 16, and a worm shaft 52 horizontally supported near the front edge of the upper brackets.
The fan-shaped worm wheel portion 30 rotates integrally with the fan-shaped worm wheel portion 30.
a worm-cum-worm wheel 5 that meshes with the worm-cum-worm wheel 5; a worm-wheel tooth portion 50 provided on the outer periphery of the threaded teeth 51 of the worm-cum-worm wheel 5; a square shaft portion 53 for rapid feed provided at the shaft end of the worm shaft 52; A movable bearing framework 7 is attached to a pair of upper brackets 16, 16 so as to be movable in the front-rear direction, and a worm shaft 62 is vertically supported by the bearing framework 7 and has a square shaft portion 63 for fine adjustment at its upper end.
and another worm 6 that rotates integrally with the worm shaft 62 and meshes with the worm wheel teeth 50 of the worm and worm wheel 5, and the movable bearing framework 7
A fine adjustment device for twisting angle of a twist roller capable of fast forwarding for adjusting twisting angle, characterized in that the worm 6 is detached from the worm wheel teeth 50 by moving the worm wheel. 3. In the device according to claim 2, the bearing frame 7 includes a lower bearing frame 71 that bears the lower end of the worm shaft 62 and a lower bearing frame 71 that bears the upper end of the worm shaft 62.
and an upper bearing frame 72 that prevents movement of the bearing in the axial direction.
A twist roller twist angle fine adjustment device fixed to the upper surfaces of the pair of upper brackets 16 and 16 with a common bearing frame fixing bolt 73.