JPH078382B2 - Straightening roll angle adjustment device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for straightening a material to be processed, which has a straight line, a bend, etc., and relates to a simple structure capable of easily adjusting the angle of a straightening roll. The present invention relates to an angle adjusting device.

2. Description of the Related Art For example, when a material to be processed such as a round bar or a steel pipe is processed into a round bar or a steel pipe having a desired size, shape and mechanical properties, a line curl or a bend is generated. As a device for correcting this line curving or bending, a correction device using a drum-shaped correction roll is known. As shown in FIG. 6, the straightening device
10 are columns 14 at the four corners of the base 12 (only two are shown)
Are erected, and a moving frame 16 is arranged on these columns 14. The moving frame 16 is configured to be movable up and down by a required drive source so that the space between the straightening rolls 24, 24, which will be described later, can be adjusted.

Vertical support shafts 18 are rotatably disposed on the opposing surfaces of the base 12 and the moving frame 16, respectively, and a bearing housing 20 is integrally rotatably disposed on the support shafts 18. Also,
Each bearing housing 20 has a straightening roll 24 rotatably provided on a shaft 22 orthogonal to the support shaft 18. The straightening rolls 24, 24 facing each other in the vertical direction are positioned so as to intersect the pass line PL with being inclined at a predetermined angle in mutually opposite directions.

The base 12 and the moving frame 16 are provided with hand-turning handles 26 for turning the support shafts 18, respectively. By operating the handles 26, the angle of the straightening roll 24 with respect to the pass line PL is adjusted. Is configured.

In the straightening device configured as described above, after adjusting the separation distance and the inclination angle of the straightening rolls 24, 24 according to the wire diameter of the work material 28, the work material 28 is passed between both rolls 24, 24. As a result, a larger deformation than that of canceling out the line mark, the bend, and the like of the material 28 is imparted, and finally a straight material is obtained.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In order to straighten a material to be processed with high accuracy, it is most important that a material passing between a pair of straightening rolls and a contact state between both rolls are good, The contact state between the roll and the material is adjusted by changing the inclination angle of the straightening roll with respect to the pass line. Therefore, in the straightening device, it is necessary to adjust the inclination angle of the straightening roll with respect to the pass line each time the order is changed. However, this adjustment work requires a great deal of labor and time because the operator directly rotates the hand-turning handle as described above. Moreover, since it requires experience to make appropriate adjustments for each material, there is a drawback that the correction accuracy varies depending on the degree of skill of the operator.

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the above-mentioned drawbacks inherent in the work for adjusting the angle of the straightening roll, and it is possible to easily and quickly adjust the angle of the straightening roll. The purpose is to provide means.

Means for Solving the Problem In order to overcome the above problems and preferably achieve the intended purpose, the present invention includes a pair of straightening rolls that are arranged to face each other with a pass line of a material to be processed interposed therebetween, and the straightening roll is In a straightening device configured to adjust a tilt angle with respect to a pass line and straightening by applying a required stress to a material passing between both rolls, the straightening roll is rotatably supported, and a rotation axis of the roll is provided. A rotary table that is rotatably supported by intersecting support shafts, a guide that is slidably fitted in a recess formed on the outer edge of the rotary table, and a rotatable guide groove that is formed in the guide. The moving member is provided in a tangential direction of the rotary table by a moving mechanism, and the moving member is moved in a tangential direction of the rotary table. It is characterized in that the rotary table is rotated around a support shaft to adjust the inclination angle of the straightening roll with respect to the pass line.

Example Next, regarding the angle adjusting device of the straightening roll according to the present invention,
A preferred embodiment will be described below with reference to the accompanying drawings. FIG. 1 is a front view of a correction device adopting an angle adjusting device according to a preferred embodiment of the present invention, and FIG. 2 is a schematic perspective view of a main part of the angle adjusting device.

As shown in FIG. 1, the base 12 and the moving frame 16 of the straightening device 10 are provided with straightening rolls 24, 24 facing each other with the pass line PL of the material to be processed 28 interposed therebetween. .
Then, each straightening roll 24 is moved by the angle adjusting device 30 arranged on the base 12 or the moving frame 16, respectively.
The tilt angle with respect to is adjustable. Since the angle adjusting devices 30 and 30 provided on the base 12 and the moving frame 16 have the same configuration, only the angle adjusting device 30 provided on the base 12 will be described.

As shown in FIG. 2, the base located below the pass line PL
A support shaft 31 that intersects the pass line PL is vertically provided on the support shaft 12, and a rotary table 32 is formed on the support shaft 31 in a disk shape.
Is rotatably supported. A pair of bearings 34, 34 are erected on the upper surface of the rotary table 32 with a predetermined distance therebetween with the central axis of the support shaft 31 interposed therebetween, and the straightening roll 24 is rotatably supported by both bearings 34, 34. To be done. Further, a drive shaft 37 rotated by a driving means (not shown) is connected to one bearing 34 via a universal joint 35 so that the straightening roll 24 can be rotationally driven. The center axis L of the straightening roll 24 and the pass line PL are inclined at an angle α as shown in FIG.

As shown in FIG. 3, a recess 32a is formed at a predetermined position on the outer edge of the rotary table 32 so as to open outward in the radial direction, and a guide 36 is slidably fitted in the recess 32a. An arcuate guide groove 36a having an outward opening is vertically formed in the guide 36, and the guide 38 is provided with a connecting member 38 arranged on a moving member 42 to which a screw shaft 40 described later is screwed. Is rotatably fitted. A plurality of oil grooves (not shown) are bored on the inner surface of the guide groove 36a, and by lubricating the oil grooves, the guide 36 can be used when adjusting the angle described later.
Is configured to smoothly rotate around the connecting body 38.

As shown in FIG. 3, on the upper surface of the base 12, a support frame 44 formed in a substantially flat shape in a plane is arranged in parallel with the pass line PL at a position facing the recess 32a of the rotary table 32. There is. The screw shaft 40 is provided between the bearings 46, 44b between the protrusions 44a, 44b of the support frame 44 protruding in the direction of the rotary table 32.
It is rotatably supported via 48. A moving member 42 having a female screw (neither shown) in its center through hole is screwed onto the screw shaft 40. The moving member 42
Are non-rotatable with respect to the screw shaft 40. Further, a convex portion is formed on the side surface of the moving member 42 that faces the rotary table 32.
42a is formed, the convex portion 42a is fitted into the concave portion 38a formed in the connecting body 38, and both members 38, 42 (not shown)
Is fixed through.

As shown in FIG. 4, a support frame for the screw shaft 40.
A bevel gear 50 is arranged and fixed at one end facing the left protrusion 44a of the bevel gear 44, and the bevel gear 50 is a drive motor arranged on the base 12.
It meshes with a bevel gear 54 arranged on a rotating shaft 52a of 52. Therefore, if the motor 52 is rotationally driven in either forward or reverse direction,
The screw shaft 40 rotates in either forward or reverse directions via the bevel gears 54, 50, and the moving member 42 moves in the axial direction by a predetermined stroke as the screw shaft 40 rotates (see FIG. 5).

At this time, the connecting body 38 moves integrally with the moving member 42, so that the guide 38 into which the connecting body 38 is fitted is connected as the connecting body 38 moves, as shown in FIG. Body 38
Will rotate around. That is, the rotary table 32 to which the guide 36 is fixed rotates in a predetermined direction around the support shaft 31, and the axis L of the straightening roll 24 arranged on the table 32.
And the inclination angle α with the pass line PL increases or decreases.

As shown in FIG. 3, a gear 56 is arranged at the other end of the screw shaft 40. The gear 56 is attached to one end of a shaft 58 pivotally supported on the protrusion 44b in parallel with the screw shaft 40. It meshes with the arranged gear 60. Angle detection means 62 is connected to the other end of the shaft 58, and the angle detection means 62 is configured to detect the rotation angle of the rotary table 32 from the rotation speed of the screw shaft 40. The detection signal of the angle detection means 62 is input to, for example, a control device (not shown), and is displayed as a numerical value on the display unit of the control device so that the straightening roll
The inclination angle α of 24 can be set accurately. Further, it goes without saying that the inclination angle α can be input in advance to the control device and the drive motor 52 can be automatically stopped when the angle detection means 62 reaches the set value.

As shown in FIG. 2, a step portion 44d parallel to the screw shaft 40 is formed in the recess 44c formed between the projecting portions 44a, 44b of the support frame 44, and the screw shaft 40 is formed in the step portion 44d. A pair of detection means 66, 66 spaced apart by a predetermined distance in the direction parallel to the axial direction of
Is provided. The detecting means 66 functions to regulate the moving range of the moving member 42 arranged on the screw shaft 40. That is, on the upper surface of the moving member 42, projecting pieces 64, 64 that can pass through the upper portion of the detecting means 66 are arranged at both ends in the longitudinal direction, and when the moving member 42 moves in the axial direction, any one of When one of the detection means 66 detects the projecting piece 64, the drive motor 52 is set to stop.

Operation of the Embodiment Next, the operation of the straightening roll angle adjusting device according to the embodiment having the above-described configuration will be described. The moving member 42 screwed into the screw shaft 40 moves leftward in the axial direction as shown in the fifth receiving portion (a) when the screw shaft 40 rotates counterclockwise when viewed from the direction of arrow A. It is supposed to be set.

Due to the change of the order of the material to be processed 28, the material according to another standard
When correcting 28, first, the drive motor 52 is rotated in a predetermined direction, for example, counterclockwise when viewed from the motor shaft.
As a result, the bevel gear 54 arranged on the rotating shaft 52a of the motor 52 is
The bevel gear 50 meshing with the screw shaft 40 rotates, and the screw shaft 40 rotates counterclockwise as viewed from the direction of arrow A. Since the moving member 42 disposed on the screw shaft 40 is configured to be non-rotatable with respect to the screw shaft 40, the moving member 42 moves as shown in FIG. , Move to the left.

The moving member 42 includes a guide arranged on the rotary table 32.
Since the connecting body 38 is attached by being rotatably fitted to the 36, the connecting body 38 also moves integrally. At this time, the guide
36 slides in the recess 32a and rotates around the connecting body 38 as the connecting body 38 moves. As a result, the rotary table 32 rotates clockwise around the support shaft 31, and the inclination angle α of the straightening roll 24 decreases. Then, when the angle detection means 62 reaches a preset value, the drive motor 52 is stopped to position the rotary table 32, and the angle of the straightening roll 24 arranged on the table 32 is adjusted. Is completed.

Next, when the drive motor 52 is rotated in the opposite direction, the screw shaft 40 rotates clockwise through the bevel gears 54 and 50, and the moving member 42 moves to the right as shown in FIG. 5 (b). Move to. Then, the rotary table 32 rotates counterclockwise, and the inclination angle α of the straightening roll 24 is adjusted to increase. The moving range of the moving member 42 is determined by the detecting means 66, 66 and the protruding piece 6
Since it is regulated by 4, 64, it is possible to prevent the moving member 42 from moving more than necessary in the axial direction due to an operator's operation error or the like.

Effect of the Invention As described above, according to the straightening roll angle adjusting device of the present invention, the straightening roll angle can be adjusted by driving the drive motor. That is, it is not necessary for the operator to directly operate the handwheel to adjust the handle, which can reduce the labor of the operator and can significantly reduce the time required for the adjustment work. Further, since the angle of the straightening roll can be accurately detected, the material to be processed can be precisely straightened, and the straightening accuracy can be always maintained without changing the straightening accuracy depending on the degree of skill of the operator. , And so on.

[Brief description of drawings]

FIG. 1 is a front view for explaining an orthodontic device adopting an angle adjusting device according to a preferred embodiment of the present invention, FIG. 2 is a schematic perspective view of an essential part of the angle adjusting device, and FIG. 3 is arranged on a base. FIG. 4 is a cross-sectional plan view of a straightening device showing the angle adjusting device in a vertical section, FIG. 4 is a front view of a main part of the straightening device showing a part of the angle adjusting device, and FIGS. FIG. 6 is an explanatory view showing a state in which the angle of the straightening roll is adjusted by the adjusting device, and FIG. 6 is an explanatory front view of the straightening device according to the prior art. 24 …… Straightening roll, 28 …… Working material 31 …… Support shaft, 32 …… Rotary table 36a …… Guide groove, 38 …… Connecting body 40 …… Screw shaft, 42 …… Moving member 52 …… Drive motor , PL …… pass line

Claims (3)

[Claims] 1. A pair of straightening rolls (24, 24) arranged opposite to each other with a pass line (PL) of a material to be processed (28) interposed therebetween,
The straightening roll (24) is configured so that the inclination angle with respect to the pass line (PL) can be adjusted, and a straightening device for straightening the material (28) passing between both rolls (24, 24) by applying a required stress. A rotary table (32) that rotatably supports the straightening roll (24) and is rotatably supported by a support shaft (31) that intersects the rotary shaft of the roll (24); The recess (32) formed on the outer edge of
a) includes a guide (36) slidably fitted into the guide (36) and a connecting body (38) rotatably fitted into a guide groove (36a) formed in the guide (36). 40, 52) and a moving member (42) which is moved in the tangential direction of the rotary table (32). By moving the moving member (42) in the tangential direction of the rotary table (32), An angle adjusting device for a straightening roll, wherein the rotary table (32) is rotated around a support shaft (31) to adjust an inclination angle of the straightening roll (24) with respect to a pass line (PL). 2. The moving mechanism includes the rotary table (32).
And a screw shaft (40) that is rotatably supported by a support frame (44) disposed in close proximity to the screw shaft and screwed into the moving member (42), and a drive that rotationally drives the screw shaft (40) in forward and reverse directions. The straightening roll angle adjusting device according to claim 1, comprising a motor (52). 3. The straightening roll angle adjusting device according to claim 2, wherein an angle detecting means (62) is provided at one end of the screw shaft (40).