KR20150012604A - Flexible roll forming unit - Google Patents

Abstract

The present invention relates to a variable roll forming unit. According to an embodiment of the present invention, the variable roll forming unit comprises: a base which is arranged on both sides symmetrically around a central line of a process direction in order to roll-form materials arranged in at least three layers and supplied in the process direction into a beam having an irregular cross section of which width and length are different, has an aperture portion which is connected to an internal space portion on each upper side, and has a rail in the width direction of the process on both upper sides of the aperture portion; a forward and backward moving element in which each slide plate slides along the rail on the base in the width direction of the process by the drive of a forward and backward rotating motor; a turning element in which a turn table rotates with a certain angle by using rotatory power of a turning motor at an upper portion of the slide plate; and a roll forming element which variably roll-forms the supplied materials by changing the location of the width direction of the process and the angle of the process direction by the forward and backward moving element while upper and lower forming rolls installed in an upper roll housing and a lower roll housing are adjusted in compression power by a compression motor on the turn table.

Description

FLEXIBLE ROLL FORMING UNIT [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a variable roll forming unit, and more particularly to a variable roll forming unit in which a blank material is variably roll-formed into a forming beam having an irregular section whose width and height are different along the length direction.

In general, a roll forming method is a method in which a coil is loosened to form a pair of upper and lower forming rolls and passes through a multi-stage roll forming unit arranged in a row, and is sequentially bent and formed into a predetermined shape. And is applied to manufacture a linear type molded product which is bent and formed into a constant shape such as a member.

1 is a schematic view of a general roll forming system and its steps.

Referring to FIG. 1, in the roll forming method according to the related art, the uncoiler 1 which uncoils the supplied coil 10 is arranged in front of the process line and proceeds to the uncoiling step S1 to supply the coils.

Strainer 2 is provided behind the uncoiler 1 in the process direction to proceed the straightening step S2 in which the strip-shaped coil 10 uncoiled from the uncoiler 1 is flattened.

A press 3 is provided behind the straightener 2 in the process direction to advance the piercing step S3 for forming holes for various uses in the coil 10 supplied from the straightener 2. [

At least ten or more roll forming units RU1 to RU10 (not shown) are disposed behind the press 3 in the process direction and fed through the uncoiler 1, the straightener 2 and the press 3 And a coil forming step (S4) of forming a linear beam of shaping beam (20) having a predetermined shape by roll forming.

A cutting press (4) is provided behind the roll forming unit to cut the forming beam (20) in accordance with the standard of finished product to produce a roll forming product (30) .

However, the roll forming method using the above-described conventional roll forming units RU1 to RU1 is capable of forming only a beam having a predetermined cross-section along the longitudinal direction, There is a disadvantage that the beam can not be formed.

Therefore, in the case of a molded article having a section having an irregular section whose width and height differ from each other along the length direction, a conventional multi-stage press forming method which can not be formed by a roll forming method and has a long cycle time .

In the embodiment of the present invention, the upper and lower forming rolls are made to be two sides in the process direction, respectively, so that the angle in the process width direction and the process direction can be varied and arranged in multiple stages along the process direction. It is desired to provide a variable roll forming unit which can be variably roll-formed by a forming beam having another deforming section.

In one or more embodiments of the present invention, at least three or more stages are disposed along the process direction so that the material to be fed is formed into a variable roll shape in a stepwise fashion with a forming beam having a different cross- A base disposed on both sides in symmetry with each other and having an opening connected to the inner space and having a rail along the process width direction on both sides of the opening; Forward and backward means for slidingly driving each of the slide plates along the rails on the base in the process width direction by driving the forward and backward motors; Turning means for rotating the turntable at an upper portion of the slide plate by a predetermined angle using a turning force of the turning motor; The upper and lower forming rolls respectively provided on the upper and lower roll housings on the turntable are controlled by a pressing motor so as to be rotated by motor driving and are rotated by the forward and reverse stages and the turning means, And a roll forming unit that variably rolls the supplied material while varying the angle with respect to the roll forming unit.

Further, the forward / backward means includes a slide plate slidably driven in the process width direction along each rail on the base, and a screw block formed on the outer side in the process width direction; And a forward-reverse motor in which a rotary shaft is formed as a screw shaft and installed at the center of the upper outer surface of the base, and a screw shaft is fastened to the screw block.

Further, the turning means may include a turning speed reducer installed at the center of the slide plate; A turning motor installed at a lower portion of the turning speed reducer to supply rotational force; And a turntable installed at an upper portion of the turning speed reducer and rotated by a turning force of the turning motor.

On the slide plate, a plurality of detection sensors are installed to sense the sensing dog formed on one side of the lower surface of the turntable and detect the rotation position of the turntable relative to the slide plate, the rotation limit position in one direction and the other direction, .

Further, the roll forming means may be a roll post which is installed on both sides of the upper and lower plates and installed on the turntable; Upper and lower roll housings mounted on the roll post so as to be able to move up and down; Upper and lower roll motors respectively installed on outer side surfaces of the upper and lower roll housings; Upper and lower forming rolls provided on respective roll axes connected to respective rotary shafts of the upper and lower roll motors through respective roll housings at inner surfaces of the upper and lower roll housings; An adjusting bolt formed between the lower plate and the lower roll housing to adjust and fix the position of the lower roll housing; And a pressurizing motor for controlling the pressing force on the work while adjusting the position of the upper roll housing by screwing the screw shaft on the screw housing on the upper roll housing, the rotary shaft being formed as a screw shaft, .

The upper and lower roll motors may be power-connected to the respective roll axes through upper and lower speed reducers respectively installed in the upper and lower roll housings.

In the embodiment of the present invention, the variable roll forming unit is constituted so that the upper and lower forming rolls can vary the angle in the process width direction and the process direction while maintaining an appropriate pressing force on the material, The material can be variably roll-formed into a forming beam having an irregular cross section whose width and height are different along the length direction.

Accordingly, it is possible to integrally mold body members, frames, beams and the like having a cross-sectional profile having a different width and depth in the longitudinal direction through a single variable roll forming, thereby reducing the post- There is an effect that the body weight can be reduced.

1 is a schematic view of a general roll forming system and its steps.
2 is a perspective view of a variable roll forming unit according to an embodiment of the present invention.
3 is a partially exploded perspective view of a variable roll forming unit according to an embodiment of the present invention.
4 is an exploded perspective view of forward and backward means and turning means applied to a variable roll forming unit according to an embodiment of the present invention.
5 is a perspective view showing an example of a workpiece supplied to the variable roll forming unit according to the embodiment of the present invention.
6 is an operational explanatory view of a variable roll forming unit according to an embodiment of the present invention.
Fig. 7 is a conceptual view illustrating the operation of the variable roll forming unit according to the embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

It should be noted that the sizes and thicknesses of the components shown in the drawings are arbitrarily shown for convenience of explanation, and thus the present invention is not necessarily limited to those shown in the drawings.

In order to clearly explain the embodiments of the present invention, parts that are not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

FIG. 2 is a perspective view of a variable roll forming unit according to an embodiment of the present invention, and FIG. 3 is a partially exploded perspective view of a variable roll forming unit according to an embodiment of the present invention.

Referring to FIGS. 2 and 3, the variable roll forming unit 100 according to the embodiment of the present invention basically applies a blank that is not a coil material.

The variable roll forming unit 100 has an upper forming roll R1 and a lower forming roll R2 and is arranged at least three stages along the process direction to sequentially feed the material to be fed, The basic concept of roll forming with a shaping beam of the same is the same.

In the variable roll forming unit 100 according to the embodiment of the present invention, the upper and lower forming rolls R1 and R2 are symmetrically divided along the process direction center line LS, Is formed by a stepwise variable roll forming process with a forming beam having an irregular cross section whose width and height are different along the length direction.

That is, in the variable roll forming unit 100, the upper and lower forming rolls R1 and R2 are disposed symmetrically on the right and left sides in the process direction, and the upper and lower forming rolls R1 and R2, respectively, And is configured such that the angle is variable by the motor driving with respect to the process direction.

A more detailed configuration of the variable roll forming unit 100 according to the embodiment of the present invention will be described below.

Referring to FIGS. 2 and 3, the variable roll forming unit 100 according to the embodiment of the present invention is provided with a base 103 on both sides symmetrically with respect to the process direction center line LS, (110), a turning means (120), and a roll forming means (130) are formed on the substrate (103).

First, a space 105 is formed in each base 103, and an opening 105a connected to the space 105 is formed on an upper surface.

In addition, the base 103 is provided with rails 107 on upper sides of both sides of the opening 105a along the process width direction.

4 is an exploded perspective view of forward and backward means and turning means applied to a variable roll forming unit according to an embodiment of the present invention.

Referring to FIG. 4, the forward / reverse means 110 is configured to slide the slide plate 111 along the rail 107 on the base 103 in the process width direction by motor drive.

That is, the slide plate 111 is installed on both side rails 107 on the base 103 through a slider 112 and is slidably driven in the process width direction, and on the outer side in the process width direction, a screw block 115 .

The forward and backward motor 113 is rotatably mounted on the base 103 by a screw shaft 114 formed on the slide plate 111. The forward and backward motors 113, 115). Thus, the slide plate 111 is slid in the process width direction by the rotational drive of the forward-reverse motor 113. [

Referring to FIG. 4, the turning means 120 is configured such that the turntable 121 is rotatable at a predetermined angle using the rotational force of the turning motor 122 at the upper portion of the slide plate 111.

That is, the turning means 120 is provided with a turning speed reducer 123 at the center of the slide plate 111 for reducing the rotational force of the motor and transmitting the rotation speed.

A turning motor 122 is installed on the lower side of the slide plate 111 below the turning speed reducer 123 to supply rotational force to the turning speed reducer 123.

Here, the turning motor 122 may be a servomotor capable of rotating in the forward and reverse directions, and capable of controlling the number of revolutions and the speed of rotation.

A turntable 121 is installed on the reducer shaft 124 at the upper portion of the turning speed reducer 123 so as to be rotated by the turning force of the turning motor 122 which is decelerated and transmitted through the turning speed reducer 123 .

The turning motor 122 is disposed on the space 105 through the opening 105a of the base 103 and installed on the lower portion of the slide plate 111 through the turning reducer 123, It is possible to move the plate 111 without interference with the base 103 when the plate 111 slides in the process width direction.

On the other hand, on the slide plate 111, the sensing dog 126 formed on one side of the lower surface of the turntable 121 is sensed and the rotation position of the turntable 121 relative to the slide plate 111, And three sensors 125 are provided to detect the state of the sensor and output the signal to a controller (not shown).

Here, the sensing sensor 125 may be a proximity sensor that senses when the sensing dog 126 is within a certain range, but is not limited thereto. For example, the sensing sensor 125 may be a limit switch, It is possible to use any sensing means capable of sensing the rotational position of the turntable 121 in accordance with the rotation of the turntable 121.

The roll forming means 130 is installed on the turntable 121 and the upper and lower forming rolls R1 and R2 provided respectively in the upper and lower roll housings RH1 and RH2 are driven by a pressure motor 140 And the angle of the process width direction and the process direction is changed by the forward and backward means 110 and the turning means 120 so as to variably roll the material to be supplied .

3, the roll forming means 130 includes two roll posts 131, upper and lower roll housings RH1 and RH2, upper and lower roll motors RM1 and RM2, Rolls R1 and R2, an adjusting bolt 132, a pressure motor 140, and the like.

The roll post 131 is installed on both sides between the upper and lower plates 133 and 134 and is fixed at a center thereof on the turntable 121 through a lower plate 134. [

In addition, the upper and lower roll housings RH1 and RH2 are mounted on both sides of the roll post 131 so that they can move up and down.

Upper and lower speed reducers 135 and 136 are respectively installed on the outer surfaces of the upper and lower roll housings RH1 and RH2 and upper and lower roll motors RM1 and RM2 are connected to the upper and lower speed reducers 135 and 136, Each rotary shaft is connected by power connection.

Each of the upper and lower rollers RH1 and RH2 is provided with a roll shaft 137 rotatably through the center thereof and each roll shaft 137 is connected to the upper and lower speed reducers 135 and 136, The upper and lower forming rolls R1 and R2 are provided on the roll rollers 137 corresponding to the inner surfaces of the upper and lower roll housings RH1 and RH2.

That is, in a state where the upper and lower forming rolls R1 and R2 are key-inserted into the respective roll axles 137, the fixing plate 138 is fastened to the ends of the respective roll axles 137, And the forming rolls R1 and R2 are fixed so as not to come off.

Here, the upper and lower roll motors RM1 and RM2 can be rotated in the forward and reverse directions, and a servo motor capable of controlling the number of revolutions and the rotational speed can be applied.

The adjustment bolt 132 is formed between the lower plate 134 and the lower roll housing RH2 to adjust and fix the position of the lower roll housing RH2.

At this time, the adjusting bolts 132 are fastened with fixing nuts 139 for fixing the lower roll housing RH2 to the adjusted position.

The rotary shaft of the pressure motor 140 is formed of a screw shaft 141 and is installed on the upper plate 133.

A screw housing 142 is provided on the upper surface of the upper roll housing RH1 and a screw shaft 141 of the pressing motor 140 is fastened to the screw housing 142 to drive the pressing motor 140 The upper roll housing RH1 is moved up and down to control the pressing force on the work.

Therefore, in the variable roll forming unit 100 having the above-described configuration, the pressing force of the upper and lower forming rolls R1 and R2 is adjusted by the pressure motor 140, and the driving of each of the roll motors RM1 and RM2 And the angle of the process width direction position and the process direction is changed by the operation of the forward / reverse means 110 and the turning means 120, so that the supplied material is stably pressurized while being variably roll-molded.

5 is a perspective view showing an example of a material supplied to the variable roll forming unit 100 according to the embodiment of the present invention.

5, a variable roll forming unit 100 according to an embodiment of the present invention basically applies a blank B of a certain standard to a supplied material, It is advantageous that the left and right sides are symmetrical with respect to each other.

That is, although the blank B is difficult to be formed when the width changes greatly along the longitudinal direction, the blank B may be formed to have a different width as a whole along the longitudinal direction, and includes a straight portion P1 having a constant width along the longitudinal direction, And a curved portion P3 that connects the straight line P1 and the extended portion P2 by a curved line. The curved portion P3 may include a curved portion P3 extending in the longitudinal direction.

Hereinafter, the operation of the variable roll forming unit 100 according to the embodiment of the present invention will be described with reference to FIGS. 6 and 7. FIG.

FIG. 6 is an operational explanatory view of a variable roll forming unit according to an embodiment of the present invention, and FIG. 7 is a conceptual view of operation of a variable roll forming unit according to an embodiment of the present invention.

6, the variable roll forming unit 100 is configured such that the slide plate 111 moves along the both side rails 107 on the base 103 by the rotational drive of the forward and reverse motor 113, The positions of the lower forming rolls R1 and R2 can be variably controlled in the process width direction.

The variable roll forming unit 100 can be rotated by driving the turning motor 122 installed in the slide plate 111 through the turning speed reducer 123 in the space 105 of the base 103 As the turntable 121 rotates with respect to the slide plate 111, the angle of the upper and lower forming rolls R1 and R2 with respect to the process direction can be variably controlled.

The upper and lower forming rolls R1 and R2 are rotatably driven in opposite directions by the upper and lower roll motors RM1 and RM2 to receive rotational forces in opposite directions through the respective speed reducers 135 and 136, Bending the material to be fed.

That is, in the variable roll forming unit 100, the upper and lower forming rolls R1 and R2 are driven to rotate in opposite directions to each other by motor driving, and the slide plate 111 by the forward and reverse motor 113, And the angle of the process width direction and the process direction is changed by the rotation operation of the turntable 121 by the rotation drive of the turning motor 122, so that the supplied material is varied and formed into a roll.

The straight portion P1, the extending portion P2, and the curved portion P3 are formed on the end face of the variable roll forming unit 100, The forming step at each end is based on the above-mentioned blank (B) of Fig.

7 (a), the flange F is variably roll-formed with respect to the straight portion P1 of the blank B, and the upper and lower forming rolls R1 and R2 The position in the process width direction is fixed at the straight portion P1 of the blank B and the angle with respect to the process direction is perpendicular to the straight portion P1 to bend down a predetermined width of the edge of the straight portion P1, .

4 (b), the upper and lower forming rolls R1 and R2 enter the curved portion P3 of the blank B, and the positions in the process width direction are fixed as they are, Only the angle with respect to the process direction is changed by the rotation of the motor 122 to the same angle as that of the extended portion P2 so that a certain width of the edge of the curved portion P3 is formed into the flange F.

4 (c), the upper and lower forming rolls R1 and R2 enter the extended portion P2 of the blank B so that the angle with respect to the process direction becomes the extended portion P2, And the process width direction position P is extended outward along the edge of the extended portion P2 by the unidirectional rotational driving of the forward and reverse motor 113, Are formed by a roll forming with a flange F and a variable roll forming with a forming beam having flanges F on both sides and different widths along the longitudinal direction.

When the forming beams having the flanges F perpendicular to both sides are formed through the variable roll forming, both side portions perpendicular to both sides of the forming beam are roll-formed on the basis of the longitudinal center line S through general roll forming, B are variably roll-formed into a 3D shaped molded article having a deformed section whose width and height are different from each other along the length direction by the extended portion P2.

Through such a molded product, members for a body, frames, beams and the like having a cross-sectional profile whose width and height are different from each other in the longitudinal direction are rolled integrally through a single roll forming, thereby minimizing post-processes such as welding and joining And contributes to weight reduction of the vehicle body.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And all changes to the scope that are deemed to be valid.

100: Variable roll forming unit
103: Base
110: forward / backward means
120: Turning means
130: roll forming means
105:
105a: opening
107: rail
111: slide plate
112: Slider
113: forward / backward motor
114: Screw shaft
115: Screw block
121: Turntable
122: Turning motor
123: Turning speed reducer
124: Reducer shaft
125: Detection sensor
126: Detection Dog
131: Roll Post
132: adjusting bolt
133, 134: upper and lower plates
135, 136: upper and lower speed reducers
137: roll axis
138: Fixing plate
139: Lock nut
140: Pressurizing motor
141: Screw shaft
142: Screw housing
RH1, RH2: upper and lower roll housings
R1, R2: upper and lower forming rolls
RM1, RM2: upper and lower roll motors
B: Blank
F: Flange
P1: straight line portion
P2: Extension
P3:

Claims (15)

At least three stages are arranged along the process direction so that the material to be fed is formed into a variable roll shape in stages by a forming beam having an irregular cross section whose width and height are different along the length direction,
A base disposed on both sides in symmetry with respect to the process direction centerline and having openings connected to the inner space on each of the upper surfaces and having rails formed on upper sides of the openings along the process width direction;
Forward and backward means for slidingly driving each of the slide plates along the rails on the base in the process width direction by driving the forward and backward motors;
Turning means for rotating the turntable at an upper portion of the slide plate by a predetermined angle using a turning force of the turning motor;
The upper and lower forming rolls respectively provided on the upper and lower roll housings on the turntable are controlled by a pressing motor so as to be rotated by motor driving and are rotated by the forward and reverse stages and the turning means, Roll forming means for variably rolling the supplied material while changing an angle with respect to the roll forming means;
And a variable roll forming unit. The method according to claim 1,
The forward /
A slide plate slidably driven in the process width direction along each rail on the base, and a screw block is formed on the outer side in the process width direction;
And a forward-reverse motor in which a rotary shaft is formed as a screw shaft and installed at a center of the upper outer surface on the base, and a screw shaft is fastened to the screw block. The method according to claim 1,
The turning means
A turning speed reducer installed at the center of the slide plate;
A turning motor installed at a lower portion of the turning speed reducer to supply rotational force;
And a turntable installed at an upper portion of the turning speed reducer and rotated by a rotational force of the turning motor. 4. The method according to any one of claims 1 to 3,
On the slide plate
Wherein a plurality of sensing sensors are provided for sensing a sensing dog formed on one side of the lower surface of the turntable and detecting a predetermined position of the turntable with respect to the slide plate, a rotation limit position in one direction and another direction, and outputting the signal. The method according to claim 1,
The roll forming means
A roll post set up on both sides between the upper and lower plates and installed on the turntable;
Upper and lower roll housings mounted on the roll post so as to be able to move up and down;
Upper and lower roll motors respectively installed on outer side surfaces of the upper and lower roll housings;
Upper and lower forming rolls provided on respective roll axes connected to respective rotary shafts of the upper and lower roll motors through respective roll housings at inner surfaces of the upper and lower roll housings;
An adjusting bolt formed between the lower plate and the lower roll housing to adjust and fix the position of the lower roll housing;
And a pressurizing motor for controlling the pressing force on the work while adjusting the position of the upper roll housing by screwing the screw shaft on the screw housing on the upper roll housing, the rotary shaft being formed as a screw shaft, The roll-forming unit comprising: 6. The method of claim 5,
The upper and lower roll motors
And a variable roll forming unit power-connected to the respective roll axles through upper and lower speed reducers respectively installed in the upper and lower roll housings. At least three stages are arranged along the process direction so that the material to be fed is formed into a variable roll shape in stages by a forming beam having an irregular cross section whose width and height are different along the length direction,
A base disposed on both sides in symmetry with respect to the process direction centerline and having openings connected to the inner space on each of the upper surfaces and having rails formed on upper sides of the openings along the process width direction;
A slide plate slidably driven in the process width direction along each rail on the base, and a screw block is formed on the outer side in the process width direction;
A forward / backward motor which is formed as a screw shaft and installed at the center of the upper outer surface of the base, the screw shaft being fastened to the screw block;
A turning speed reducer installed at the center of the slide plate;
A turning motor installed at a lower portion of the turning speed reducer to supply rotational force;
A turntable installed at an upper portion of the turning speed reducer and rotated at a constant angle by a turning force of the turning motor;
The upper and lower forming rolls respectively provided on the upper and lower roll housings on the turntable are controlled by a pressing motor so as to be rotated by motor driving and are rotated by the forward and reverse stages and the turning means, Roll forming means for variably rolling the supplied material while changing an angle with respect to the roll forming means;
And a variable roll forming unit. 8. The method of claim 7,
The roll forming means
A roll post set up on both sides between the upper and lower plates and installed on the turntable;
Upper and lower roll housings mounted on the roll post so as to be able to move up and down;
Upper and lower roll motors respectively installed on outer side surfaces of the upper and lower roll housings;
Upper and lower forming rolls provided on respective roll axes connected to respective rotary shafts of the upper and lower roll motors through respective roll housings at inner surfaces of the upper and lower roll housings;
An adjusting bolt formed between the lower plate and the lower roll housing to adjust and fix the position of the lower roll housing;
And a pressing motor for controlling the pressing force on the work while adjusting the position of the upper roll housing by screwing the screw shaft on the screw housing on the upper roll housing, the rotating shaft being formed as a screw shaft, The roll-forming unit comprising: At least three stages are arranged along the process direction so that the material to be fed is formed into a variable roll shape in stages by a forming beam having an irregular cross section whose width and height are different along the length direction,
A base disposed on both sides in symmetry with respect to the process direction centerline and having openings connected to the inner space on each of the upper surfaces and having rails formed on upper sides of the openings along the process width direction;
A slide plate slidably driven in the process width direction along each rail on the base, and a screw block is formed on the outer side in the process width direction;
A forward / backward motor which is formed as a screw shaft and installed at the center of the upper outer surface of the base, the screw shaft being fastened to the screw block;
Turning means for rotating the turntable at an upper portion of the slide plate by a predetermined angle using a turning force of the turning motor;
A roll post set up on both sides between the upper and lower plates and installed on the turntable;
Upper and lower roll housings mounted on the roll post so as to be able to move up and down;
Upper and lower roll motors respectively installed on outer side surfaces of the upper and lower roll housings;
Upper and lower forming rolls provided on respective roll axes connected to respective rotary shafts of the upper and lower roll motors through respective roll housings at inner surfaces of the upper and lower roll housings;
An adjusting bolt formed between the lower plate and the lower roll housing to adjust and fix the position of the lower roll housing;
A pressing motor which is formed on the upper plate and has a rotation shaft formed on the upper plate to control the pressing force on the work while adjusting the position of the upper roll housing by engaging the screw shaft on the screw housing on the upper roll housing;
The upper and lower forming rolls are rotated by motor driving by adjusting the pressing force by the pressurizing motor and the angle of the process width direction and the process direction is changed by the operation of the slide plate and the turntable And a variable roll forming unit for variably rolling the supplied material. 10. The method of claim 9,
The turning means
A turning speed reducer installed at the center of the slide plate;
A turning motor installed at a lower portion of the turning speed reducer to supply rotational force;
And a turntable installed at an upper portion of the turning speed reducer and rotated by a rotational force of the turning motor. At least three stages are arranged along the process direction so that the material to be fed is formed into a variable roll shape in stages by a forming beam having an irregular cross section whose width and height are different along the length direction,
A base disposed on both sides in symmetry with respect to the process direction centerline and having openings connected to the inner space on each of the upper surfaces and having rails formed on upper sides of the openings along the process width direction;
Forward and backward means for slidingly driving each of the slide plates along the rails on the base in the process width direction by driving the forward and backward motors;
A turning speed reducer installed at the center of the slide plate;
A turning motor installed at a lower portion of the turning speed reducer to supply rotational force;
A turntable installed at an upper portion of the turning speed reducer and rotated at a constant angle by a turning force of the turning motor;
A roll post set up on both sides between the upper and lower plates and installed on the turntable;
Upper and lower roll housings mounted on the roll post so as to be able to move up and down;
Upper and lower roll motors respectively installed on outer side surfaces of the upper and lower roll housings;
Upper and lower forming rolls provided on respective roll axes connected to respective rotary shafts of the upper and lower roll motors through respective roll housings at inner surfaces of the upper and lower roll housings;
An adjusting bolt formed between the lower plate and the lower roll housing to adjust and fix the position of the lower roll housing;
A pressing motor which is formed on the upper plate and has a rotation shaft formed on the upper plate to control the pressing force on the work while adjusting the position of the upper roll housing by engaging the screw shaft on the screw housing on the upper roll housing;
The upper and lower forming rolls are rotated by motor driving by adjusting the pressing force by the pressurizing motor and the angle of the process width direction and the process direction is changed by the operation of the slide plate and the turntable And a variable roll forming unit for variably rolling the supplied material. 12. The method of claim 11,
The forward /
A slide plate slidably driven in the process width direction along each rail on the base, and a screw block is formed on the outer side in the process width direction;
And a forward-reverse motor in which a rotary shaft is formed as a screw shaft and installed at a center of the upper outer surface on the base, and a screw shaft is fastened to the screw block. At least three stages are arranged along the process direction so that the material to be fed is formed into a variable roll shape in stages by a forming beam having an irregular cross section whose width and height are different along the length direction,
A base disposed on both sides in symmetry with respect to the process direction centerline and having openings connected to the inner space on each of the upper surfaces and having rails formed on upper sides of the openings along the process width direction;
A slide plate slidably driven in the process width direction along each rail on the base, and a screw block is formed on the outer side in the process width direction;
A forward / backward motor which is formed as a screw shaft and installed at the center of the upper outer surface of the base, the screw shaft being fastened to the screw block;
A turning speed reducer installed at the center of the slide plate;
A turning motor installed at a lower portion of the turning speed reducer to supply rotational force;
A turntable installed at an upper portion of the turning speed reducer and rotated at a constant angle by a turning force of the turning motor;
A plurality of sensing sensors mounted on the slide plate for detecting a predetermined position of the turntable with respect to the slide plate, a rotation limit position in one direction and another direction, and outputting a signal of the rotation, sensing the sensing dog at one side of the lower surface of the turntable;
A roll post set up on both sides between the upper and lower plates and installed on the turntable;
Upper and lower roll housings mounted on the roll post so as to be able to move up and down;
Upper and lower roll motors respectively installed on outer side surfaces of the upper and lower roll housings;
Upper and lower forming rolls provided on respective roll axes connected to respective rotary shafts of the upper and lower roll motors through respective roll housings at inner surfaces of the upper and lower roll housings;
An adjusting bolt formed between the lower plate and the lower roll housing to adjust and fix the position of the lower roll housing;
A pressing motor which is formed on the upper plate and has a rotation shaft formed on the upper plate to control the pressing force on the work while adjusting the position of the upper roll housing by engaging the screw shaft on the screw housing on the upper roll housing;
The upper and lower forming rolls are rotated by the motor driving by adjusting the pressing force by the pressurizing motor and the angle of the process width direction and the process direction is changed by the operation of the slide plate and the turntable And a variable roll forming unit for variably rolling the supplied material. 14. The method of claim 13,
The upper and lower roll motors
And a variable roll forming unit power-connected to the respective roll axles through upper and lower speed reducers respectively installed in the upper and lower roll housings. At least three stages are arranged along the process direction so that the material to be fed is formed into a variable roll shape in stages by a forming beam having an irregular cross section whose width and height are different along the length direction,
A base disposed on both sides in symmetry with respect to the process direction centerline and having openings connected to the inner space on each of the upper surfaces and having rails formed on upper sides of the openings along the process width direction;
A slide plate slidably driven in the process width direction along each rail on the base, and a screw block is formed on the outer side in the process width direction;
A forward / backward motor which is formed as a screw shaft and installed at the center of the upper outer surface of the base, the screw shaft being fastened to the screw block;
A turning speed reducer installed at the center of the slide plate;
A turning motor installed at a lower portion of the turning speed reducer to supply rotational force;
A turntable installed at an upper portion of the turning speed reducer and rotated at a constant angle by a turning force of the turning motor;
A roll post set up on both sides between the upper and lower plates and installed on the turntable;
Upper and lower roll housings mounted on the roll post so as to be able to move up and down;
Upper and lower speed reducers respectively installed on outer side surfaces of the upper and lower roll housings;
An upper and a lower roll motor in which the rotating shafts are connected to the upper and lower reduction gears by power transmission;
Upper and lower forming rolls provided on respective roll axes connected to the upper and lower speed reducers through respective roll housings at inner surfaces of the upper and lower roll housings;
An adjusting bolt formed between the lower plate and the lower roll housing to adjust and fix the position of the lower roll housing;
A pressing motor which is formed on the upper plate and has a rotation shaft formed on the upper plate to control the pressing force on the work while adjusting the position of the upper roll housing by engaging the screw shaft on the screw housing on the upper roll housing;
The upper and lower forming rolls are rotated by the motor driving by adjusting the pressing force by the pressurizing motor and the angle of the process width direction and the process direction is changed by the operation of the slide plate and the turntable And a variable roll forming unit for variably rolling the supplied material.

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