JPH0788559A - Roll moving device of roll forming device - Google Patents

Abstract

PURPOSE:Not to change the forming point of forming roll by supporting a forming roll and rotation drive mechanism so as to coincide the rotating axis of rotation drive mechanism with the contact point between forming roll and material to be formed. CONSTITUTION:Forming rolls 51, 52 of non-variance servo unit 5 is slided in the width direction of a material M to be formed by a linear drive mechanism 57 and is turned corresponding to an angle of side edge face of the material M to be formed by a rotating drive mechanism 56, executing forming of non variance face of the material to be formed. Because a support device 53 supports the forming rolls 51, 52 so that the contact point where the forming rolls 51, 52 are brought into contact with the material M to be formed, is positioned on the extension line of axial center of rotating shaft 56D, when the forming rolls 51, 52 rotate, the position of the contact point between forming rolls 51, 52 and material M to be formed is not changed. Thus, the precision of cross section face is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll moving device of a roll forming device for controlling the position and angle of a roll in accordance with the position of a forming portion of a material to be formed and the angle with respect to the supply direction.

[0002]

2. Description of the Related Art As shown in FIGS. 9 and 10, a roll moving device (Japanese Patent Publication No. 2-36055) of a conventional roll forming apparatus has a stationary roll FR according to a forming portion of a material W to be formed.
A stand ST that supports a rotating shaft S that is integrally formed with a movable roll MR that is disposed so as to face the rotating roll is driven by a first motor M1 via a rotating plate P while rotating about a rotating shaft. The position and angle of the movable roll MR are controlled by moving the movable roll MR in the width direction of the material W to be molded by the second motor M2 via the rotation shaft S.

[0003]

The roll moving device of the above-described conventional roll forming device is configured to use the second motor M2 supported by the stand ST which is rotationally driven by the first motor M1 via the rotary plate P. Since the positions of the movable roll MR and the material to be molded W in the width direction are controlled according to the molding site of the material to be molded W, the material to be molded W of the movable roll MR is controlled.
Since the contact point of the movable roll MR and the axis of the rotary plate P, which is the center of rotation of the movable roll MR, are deviated, there is a problem that when the movable roll MR is rotated, the molding position is deviated accordingly.

Therefore, the present inventors have paid attention to making the contact point between the forming roll and the material to be molded coincide with the center of rotation of the forming roll, and use the supporting device to form the contact point between the forming roll and the material to be molded and the forming point. While supporting the forming roll so that the rotation axis of the rotation drive mechanism that rotationally drives the roll matches,
Focusing on the technical idea of the present invention of controlling the movement of the supporting device and the rotation drive mechanism in the width direction of the material to be molded, and further research and development, as a result, the molding roll and the material to be molded accompanying the rotation of the molding roll The present invention has been achieved which achieves the object of preventing the displacement of the molding position, which is the contact point.

[0005]

A roll moving device of a roll forming apparatus according to the present invention comprises a rotary drive mechanism for rotating a forming roll about a rotary shaft, and a rotary shaft of the rotary drive mechanism for covering the forming roll with the rotary shaft. It comprises a supporting device for supporting the forming roll so as to match the contact point with the forming material, and a linear moving mechanism for moving the supporting device and the rotation driving mechanism in the width direction of the forming material.

[0006]

In the roll moving device of the roll forming apparatus of the present invention having the above structure, the linear drive mechanism moves the supporting device according to the width of the material to be formed, and the end surface of the material to be formed is angled with respect to the supply direction. Accordingly, the forming roll is rotated on the support device by the rotation drive mechanism about the rotation axis that coincides with the contact point between the forming roll and the material to be formed.

[0007]

According to the roll moving device of the roll forming apparatus of the present invention having the above-mentioned operation, the contact point between the forming roll and the material to be formed when the forming roll moves in accordance with the width of the material to be formed and the angle of the end surface. And the rotation axis are coincident with each other, there is an effect of preventing the displacement of the molding position which is the contact point between the molding roll and the material to be molded due to the rotation of the molding roll.

[0008]

Embodiments of the present invention will now be specifically described with reference to the drawings.

As shown in FIGS. 1 to 7, the roll moving device of the roll forming apparatus of the embodiment measures a measuring unit 1 for measuring the forming length of a gradually changing cross-section molded article which is a material to be molded.
1, a piercing unit 2 for punching a gradually changing trimming reference hole, a gradually changing trimming unit 3 for forming a gradually changing flange, and a gradually changing cross-section molded article arranged at predetermined intervals are supplied to the right in FIG. A plurality of tension units 4 and the tension rolls 41, 42 of the adjacent tension units 4 are provided around the rotational axis of the driven molding rolls 50 alternately arranged on the left and right in the width direction of the molding M which is a gradually changing cross-section molded product. The rotation drive mechanism 56, the forming roll 50, and the molding M that are driven to rotate
Forming roll 5 to match the contact point with the rotation axis
It is composed of a plurality of gradually changing servo units 5 including a supporting device 53 for supporting 0 and a linear moving mechanism 57 for moving the supporting device 53 in the width direction of the molding M.

As shown in FIG. 3, the measuring unit 1 is arranged at the most upstream side of the gradually changing cross section forming section, and forms a constant section and a forming reference plane of the molding M of the plate material which is the material to be formed by the basic forming section. Semi-molded molding M supplied by
Upper and lower rotary plates 11 and 12 for sandwiching and the lower rotary plate 11
And an encoder 14 that is in rotational communication with the belt 13 via the belt 13. The encoder 14 detects the molding length of the molding M and outputs a signal.

The piercing unit 2 is disposed downstream of the measuring unit 1 as shown in FIG.
A lower die 21 on which the punch 22 is mounted, a punch 22 arranged to face the lower die 21, and a clamp 23 for fixing the punch 22.
An air cylinder 24 that moves the clamp 23 up and down is formed. Piercing is performed based on a signal from the measuring unit 1 to form circular reference holes on the center line of the molding M at regular intervals.

As shown in FIG. 5, the gradually changing trimming unit 3 includes upper and lower roll cutters 31 and 3 for sandwiching the molding M.
2, a rotary servomotor 34 for controlling rotation of a rotary plate 33 on which a device for supporting the roll cutters 31, 32 is mounted,
The linear servo motor 35 for controlling the position of the rotary plate 33 in the width direction of the molding M and the controller are provided, and the reference hole position of the molding M is detected, and the flange surface position of the molding M to be gradually changed and the molding of the molding M. The gradual change trimming roll is rotated within several tens of degrees while the speed signal is calculated and sliding in the width direction of the molding M to process the molding M into a gradual changing flange.

As shown in FIG. 6, the tension unit 4 includes upper and lower rolls 41 and 42 for holding the molding M, a stand 43 for rotatably supporting the upper and lower rolls, and a lower roll 4
2 and a drive unit 44 formed of a drive motor for rotating and driving the molding M. The molding M is supplied to the right in FIG. 1, and the molding rolls 41 and 42 have a constant cross-section to ensure molding balance. The molding and a constant tension are applied to prevent sagging of the molding M of the plate material.

The first-stage and second-stage tension units 4 arranged upstream and downstream of the gradual-variable trimming unit 3 function as trimming tension units and prevent slack caused by gradual-variable trimming. Is.

The gradually changing servo unit 5 is shown in FIGS.
As shown in FIG. 5, upper and lower gradually changing rolls 51 and 52, which form a forming roll for sandwiching the molding M, and an upper and lower gradually changing roll 5.
Supporting device 5 for supporting 1, 52 in a vertically movable and tiltable manner
A rotary drive mechanism 56 composed of a rotary servomotor for controlling the rotation of a rotary plate 55 that supports 3 via a spacer 54;
A linear drive mechanism 57 including a linear servomotor that controls the position of the rotary plate 55 in the width direction of the molding M, a controller, and a detection sensor. The detection sensor detects the reference hole of the molding M and determines the width of the molding M. While sliding, the upper and lower non-driving gradually changing rolls 51 and 52 are rotated within several tens of degrees to form a gradually changing cross section of the molding M.

In the linear drive mechanism 57, a T-shaped table 57C which engages with a rotary shaft 57B having a groove formed on the outer periphery thereof which is rotationally driven by a linear servo motor 57A is located at a position on the end face in the width direction of the molding M. It consists of a structure that can be moved accordingly.

The rotary drive mechanism 56 is a rotary servo motor 56 disposed at one end of the T-shaped table 57C.
A rotary shaft 56D integrally formed with a second bevel gear 56C meshing with the first bevel gear 56B driven to rotate by A in an orthogonal relationship is integrally fixed to a rotary plate 55 constituting the supporting device 53. And the supporting device 53 via the rotary plate 55.
It can be rotated.

The supporting device 53 has a structure in which the height can be adjusted by a spacer 53A fixed to the rotating plate 55, and the contact points of the upper and lower gradually changing forming rolls 51 and 52 are on the axis of the rotating shaft 56D. The support portion 53B which is always positioned on the upper side of the support base 53C is engaged with the crescent-shaped slot 53D formed on the U-shaped support base 53C so that the inclination angles of the upper and lower gradually changing forming rolls 51 and 52 can be changed. Become.

The measuring unit 1 arranged in the final forming portion which has completed the gradually changing cross-section forming, calculates the elongation of the molding M by measuring the pitch of the reference holes formed by the piercing process, and the elongation rate (%). ) Is fed back to the controller of the gradually changing servo unit 5 to correct the slide and rotation angle of the gradually changing servo unit 5.

In the roll moving device of the roll forming apparatus of the embodiment having the above-mentioned structure, when the semi-molded molding M in which the constant cross section of the plate-shaped molding M and the molding reference surface are molded is supplied in the basic molding portion, The encoder 14 of the measuring unit 1 measures the molding length and outputs a signal to the piercing unit 2, and the punch 22 and the lower die 21 of the piercing unit 2 are measured.
A reference hole is formed in the molding M by piercing with.

The gradual change trimming unit 3 detects the position of the reference hole of the molding M, calculates the flange surface position of the molding M to be gradually changed and the molding speed signal of the molding M, and calculates the width direction of the molding M. While sliding, the roll cutters 31 and 32 constituting the gradually changing trimming roll rotate within a range of several tens of degrees to form the molding M into a gradually changing flange.

The most upstream tension unit 4 which constitutes the trimming tension unit applies a constant tension to the molding M in order to prevent the slack generated at the time of molding the gradually changing flange.

The forming rolls 51 and 52 of the gradually changing servo unit 5 which are alternately arranged on the left and right in the width direction of the molding M between the adjacent tension units 4 are linearly driven by the detection sensor detecting the reference hole of the molding M. The mechanism 57 slides in the width direction of the molding M, and is rotated within several tens of degrees by the rotation driving mechanism 56 according to the angle of the side end surface of the molding M to shape the gradually changing cross section of the molding M. is there. In this embodiment, the gradually changing servo unit 5 is a molding M.
One is arranged alternately on the left and right in the width direction of the above, but there is no problem even if a plurality of gradually changing servo units are arranged on one side.

The linear drive mechanism 57 is a linear servomotor 5
7A rotates the rotary shaft 57B to rotate the T-shaped table 57.
C is moved in the width direction of the molding M.

In the rotary drive mechanism 56, the rotary servomotor 56A moves the molding M of the molding end surface in the width direction of the molding M on the T-shaped table 57C whose position in the width direction of the molding M is controlled by the linear driving mechanism 57. By rotating the first bevel gear 56B in accordance with the angle with respect to the supply direction, the rotating shaft 56D and the support device 53 are rotated via the second bevel gear 56C, but the support device 53 causes the upper and lower gradually changing forming rolls to rotate. Since the contact points of 51 and 52 with the molding M are supported so as to be located on the extension line of the axis of the rotation shaft 56D, the positions of the contact points change even when the gradually changing forming rolls 51 and 52 rotate. do not do.

At this time, the adjacent tension units 4 are
By applying a constant tension to the molding M with the upper and lower rolls 41 and 42 sandwiching the gradually changing servo unit 5, molding of a constant cross section for ensuring molding balance and slack of the molding M are taken. .

The measuring unit 1 placed at the gradually changing cross-section forming completion position measures the pitch of the reference holes and calculates the elongation accompanying the gradually changing molding of the molding M, so that the elongation rate can be changed by each gradually changing servo. Give feedback to unit 5,
It is also possible to correct the slide amount and the rotation angle of each gradually changing servo unit 5 according to the fed-back elongation rate.

In the roll moving device of the roll forming apparatus of the embodiment having the above-described operation, the linear drive mechanism 57 moves the T-shaped table 57C according to the width of the molding M, and the supporting device 53 makes the gradually changing forming roll 51. , 52 and the molding M so that the contact points between them and the molding M coincide with the rotation axis 56D,
Since it supports 52, the rotary drive mechanism 56 is
Even if the gradually changing forming rolls 51 and 52 are rotated in accordance with the angle of the forming end face, the effect that the forming points of the gradually changing forming rolls 51 and 52 do not change is obtained.

Further, in the roll moving device of the roll forming apparatus of the above-described embodiment, since the gradually changing servo units 5 are alternately arranged between the adjacent tension units 4 in the width direction of the molding M, the width of the molding M is increased. It is possible to form both ends in the direction to gradually change, and the gradually changing roll unit 50 can form the molding M having a narrow width.

Further, the roll moving device of the roll forming device of the above-mentioned embodiment includes the upper and lower rolls 41 of the tension unit 4,
Since the molding M is supplied by 42 and the upper and lower gradually changing rolls 51 and 52 for performing the gradually changing forming are driven without driving,
It is possible to prevent slippage between the molding M and the upper and lower gradually changing rolls 51 and 52, and to prevent the formation of scratches associated with the slippage.

Further, the roll moving device of the roll forming apparatus of the present embodiment includes the gradually changing roll 51 of the gradually changing servo unit 5,
The reference numeral 52 is a driven type and rotates together with the movement of the molding M. Therefore, when forming the gradually changing cross section, the gradually changing rolls 51, 52 are provided.
Since is positioned parallel to the molding surface, it has the effect of enabling stable molding.

Further, in the roll moving device of the roll forming apparatus of this embodiment, when the elongation occurs due to the gradual forming, the elongation is constantly monitored, and each gradual changing servo unit 5 is feedback-controlled according to the change of the elongation rate. , Gradually changing rolls 51, 52
Since the slide amount and the rotation angle are corrected, the gradual change cross-section molding is performed along the gradual change flange so that the cross-section accuracy can be improved.

Further, since the roll moving device of the roll forming apparatus of this embodiment supports the gradually changing rolls 51 and 52 on the support portion 53 so as to be vertically movable and tiltable, the molding M is twisted in the longitudinal direction, warped, and separated. In order to solve the phenomenon, it is possible to easily change the pass line and flower, and it is flexible, and it is not necessary to manufacture a new gradual roll, which reduces the number of stages of the gradual roll and improves the dimensional accuracy of the product. It has the effect of being able to.

The embodiments described above are merely examples for the purpose of explanation, and the present invention is not limited thereto, and those skilled in the art will recognize from the claims, the detailed description of the invention and the description of the drawings. Modifications and additions can be made without departing from the technical idea of the present invention.

[Brief description of drawings]

FIG. 1 is a plan view showing an apparatus according to an embodiment of the present invention.

FIG. 2 is a side view showing the device of this embodiment.

FIG. 3 is a front view showing the measuring unit of the present embodiment.

FIG. 4 is a front view showing a piercing unit of the present embodiment.

FIG. 5 is a front view showing the gradually changing trimming unit of the present embodiment.

FIG. 6 is a front view showing a tension unit of the present embodiment.

FIG. 7 is a front view showing a gradually changing servo unit of the present embodiment.

FIG. 8 is a sectional view showing a detailed configuration of a moving mechanism of the gradually changing servo unit according to the present embodiment.

FIG. 9 is a cross-sectional view showing a conventional device.

FIG. 10 is a plan view showing a conventional device.

[Explanation of symbols]

 1 Measuring Unit 2 Piercing Unit 3 Gradual Variable Trimming Unit 4 Tension Unit 5 Gradual Variable Servo Unit 11, 12, 33 Rotating Plate 13 Belt 14 Encoder 21 Lower Die 22 Punch 23 Clamp 24 Air Cylinder 31, 32 Roll Cutter 34, 56A Rotation Servo motor 35, 57A Linear servo motor 41, 42 Roll 43 Stand 44 Drive part 51, 52 Gradual change forming roll 53 Support device 53A Spacer 53B Support part 55 Rotating plate 56 Rotation drive mechanism 56B, 56C Bevel gear 57 Linear drive mechanism 57C T Character table

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Norio Nishikawa 2-1, Asahi-cho, Kariya city, Aichi Aisin Seiki Co., Ltd. (72) Teruhiko Sato 33, 6 Araibayashi, Hashime-cho, Anjo-shi, Aichi Chubu Inside Engineering Co., Ltd. (72) Inventor Shiji Atsushi 33, Niibayashi, Hashime-cho, Anjo, Aichi Prefecture Chubu Engineering Co., Ltd. (72) Instructor, Takashi Wada, 33, Niibayashi, Hashime-cho, Anjo, Aichi Prefecture 6 Chubu Engineering Within the corporation

Claims (1)

[Claims] 1. A rotation drive mechanism for rotating a molding roll about a rotation axis, and a rotation shaft of the rotation drive mechanism for rotating the molding roll so as to match a contact point between the molding roll and a material to be molded. A roll moving device of a roll forming device, comprising: a supporting device that supports a driving mechanism; and a linear moving mechanism that moves the supporting device and the rotation driving mechanism in a width direction of a material to be molded.