JPH0788563A - Forming roll apparatus - Google Patents

Abstract

PURPOSE:To prevent the slip between a material to be rolled and forming rolls and to prevent generating slip faults. CONSTITUTION:The apparatus has a measuring unit 1 to measure the forming length of a forming product with gradual changing cross-section as a material to be formed, a piercing unit 2 to pierce a gradual changing trimming standard hole, a gradual changing trimming unit 3 to form a gradual changing flange, and plural tension units 4 to be arranged in every prescribed interval and to feed the gradual changing forming product to the rightward. Further, the apparatus is composed of plural gradual changing servo units to control positions and angles of moved forming roll units 50 arranged alternately on the width direction left and right of a molding M as the gradual changing forming product betwen the tension rolls of the neighboring tension units 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll forming apparatus for forming a metal molding, a door frame or the like having a gradually changing sectional shape whose sectional shape changes in the longitudinal direction.

[0002]

2. Description of the Related Art A conventional roll forming apparatus (Japanese Patent Publication No.
605), as shown in FIG. 8 and FIG.
A stationary roll FR is arranged on one side in the width direction of
On the other hand, a movable roll MR, which is controlled to move in the width direction by the first motor M1 in the horizontal plane and is rotated about the rotation axis by the second motor M2, is arranged oppositely, and the stationary roll FR and the movable roll MR rotate. Both are driven to rotate through the drive shaft, and the material to be molded W while molding
Was supplied in one of its longitudinal directions.

[0003]

SUMMARY OF THE INVENTION The conventional roll forming apparatus described above uses a forming roll composed of a stationary roll FR and a movable roll MR, which are arranged opposite to each other and are driven to rotate, to form a material W in one direction. However, there is a problem in that the material W to be molded and the molding rolls FR and MR are slipped and scratches are formed.

Further, in the above-described conventional roll forming apparatus, since only the other movable roll MR of the facing rolls moves in the width direction of the material W to be formed, both ends in the width direction of the material W to be formed. There is a problem that the part cannot be molded and gradually changed.

Further, in the above-mentioned conventional roll forming apparatus, the stationary roll FR and the movable roll MR are arranged so as to face each other.
There is a problem that the stationary and movable rolls FR and MR facing each other interfere with each other and cannot be molded.

Therefore, the inventors of the present invention supply the material to be molded in one of the longitudinal directions by the tension rolls that are driven to rotate, and alternate between the adjacent driving tension rolls in the width direction of the material to the left and right. As a result of further research and development, focusing on the technical idea of the present invention of arranging and forming a driven forming roll, as a result of forming and gradually changing both widthwise end portions of the formed material W, the forming roll can be formed. The present invention has been achieved which achieves the purpose of preventing scratches of the material W to be molded due to the slipping and also enabling molding of a material having a narrow width.

[0007]

SUMMARY OF THE INVENTION A roll forming apparatus of the present invention is provided with a tension roll which is arranged in rows at predetermined intervals and which is rotationally driven to supply a material to be formed in one longitudinal direction and an adjacent tension roll. At least one each of them is alternately arranged on the left and right in the width direction of the material to be molded, and is composed of a driven molding roll for molding the material to be molded.

[0008]

The roll forming apparatus of the present invention having the above structure is
The material to be molded is supplied to one side in the longitudinal direction by tension rolls that are arranged at predetermined intervals and driven to rotate, and driven molding that is alternately arranged on the left and right in the width direction of the material to be molded between adjacent tension rolls. The roll is used to roll-form and gradually change both ends of the material to be formed in the width direction.

[0009]

According to the roll forming apparatus of the present invention having the above-described operation, the forming roll for forming the roll is driven by driving and supplying the forming material with the tension roll. To prevent slipping,
This has the effect of preventing the formation of scratches.

Further, since the roll forming apparatus of the present invention forms by the forming rolls which are alternately arranged on the left and right in the width direction of the material to be formed between the adjacent tension rolls, both end portions in the width direction of the material to be processed are formed. Thus, it is possible to gradually change, and it is possible to form a narrow material to be formed.

[0011]

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

As shown in FIGS. 1 to 7, the roll forming apparatus of the embodiment has a measuring unit 1 for measuring a forming length of a gradually changing cross-section molded article which is a material to be formed and a gradually changing trimming reference hole. Adjacent to the opening piercing unit 2, the gradually changing trimming unit 3 that forms the gradually changing flange, and a plurality of tension units 4 that are arranged at predetermined intervals and that supply the gradually changing cross-section molded products to the right in FIG. A plurality of gradually changing servo units for controlling the position and angle of the driven forming roll unit 50 alternately arranged on the left and right in the width direction of the molding M which is the gradually changing cross-section molded product between the tension rolls 41 and 42 of the tension unit 4. It consists of 5 and.

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 arranged 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 sandwiching 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.

As shown in FIG. 7, the gradually changing servo unit 5 includes upper and lower gradually changing rolls 51 and 52 for sandwiching the molding M, and
A rotary servomotor 56 for controlling the rotation of a rotary plate 55 that supports a support portion 53 that supports the upper and lower gradually changing rolls 51 and 52 in a vertically movable and tiltable manner via a spacer 54, and a width direction of a molding M of the rotary plate 55. Of the linear servo motor 57 for controlling the position of the molding machine, a controller and a detection sensor, and the detection sensor detects the reference hole of the molding M and slides to the width of the molding M, and the upper and lower non-driven gradually changing rolls 51, 52 are It is rotated within several tens of degrees to form a gradually changing cross section of the molding M.

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 forming apparatus of the embodiment having the above-mentioned configuration, 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 measuring unit 1 The encoder 14 measures the forming length, outputs a signal to the piercing unit 2, and forms a reference hole in the molding M by piercing the punch 22 of the piercing unit 2 and the lower die 21.

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.

In 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, the detection sensor detects the reference hole of the molding M and the linear servo is performed. The motor 57 slides in the width direction of the molding M, and is rotated within several tens of degrees by the rotary servomotor 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 the present embodiment, one gradual-change servo unit 5 is alternately arranged on the left and right in the width direction of the molding M, but there is no problem even if a plurality of gradual-change servo units are arranged on one side.

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 arranged 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 is changed by each gradually changing servo. Give feedback to unit 5,
The sliding amount and the rotation angle of each gradually changing servo unit 5 are corrected according to the fed-back elongation rate.

In the roll forming apparatus of the embodiment having the above-mentioned operation, 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 molding direction of the molding M in the width direction is changed. There is an effect that both end portions can be formed and gradually changed, and at the same time, the gradually changing roll unit 50 can also form a molding M having a narrow width.

In the roll forming apparatus of the above-described embodiment, the upper and lower rolls 41 and 42 of the tension unit 4 supply the molding M to the upper and lower gradually changing rolls 5 for gradually changing forming.
Since 1 and 52 are driven and are not driven, there is an effect that slippage between the molding M and the upper and lower gradually changing rolls 51 and 52 is prevented, and the formation of scratches due to the slippage is prevented.

Further, in the roll forming apparatus of the present embodiment, since the gradually changing rolls 51 and 52 of the gradually changing servo unit 5 are driven and are rotated together with the movement of the molding M, the gradually changing cross section is gradually rotated. Since the variable rolls 51 and 52 are positioned parallel to the molding surface, they have an effect of enabling stable molding.

In addition, in the roll forming apparatus of this embodiment, when elongation occurs due to gradual forming, the elongation is constantly monitored, and each gradual changing servo unit 5 is feedback-controlled according to the change in the elongation rate, so that the gradual changing roll is operated. Since the slide amounts and the rotation angles of 51 and 52 are corrected, the gradually changing cross-section molding is performed along the gradually changing flange, and thus there is an effect that the cross-section accuracy can be improved.

Further, in the roll forming apparatus of this embodiment, the gradually changing rolls 51 and 52 are vertically movable and can be tilted.
Since it is supported by 3, it is possible to easily change the pass line and the flower to solve the twisting, warping and edge wave phenomenon in the longitudinal direction of the molding M, and it is flexible and does not require the production of a new gradually changing roll. In addition, the number of stages of the gradually changing rolls can be reduced, and the dimensional accuracy of the product can be improved.

The embodiments described above are merely examples for the purpose of explanation, and the present invention is not limited to them. 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 cross-sectional view showing a conventional device.

FIG. 9 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 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, 56 Rotation Servo motor 35, 57 Linear servo motor 41, 42 Roll 43 Stand 44 Drive section 51, 52 Gradual roll 53 Support section 54 Spacer 55 Rotating plate

 ─────────────────────────────────────────────────── ─── 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 tension roll that is provided at predetermined intervals and that is driven to rotate so as to supply the material to be molded in one of the longitudinal directions, and alternate between the tension rolls that are adjacent to each other in the width direction left and right of the material to be molded. And a driven forming roll for forming a material to be formed.