KR101952046B1 - Roll forming system - Google Patents

Abstract

Disclosed is a roll forming apparatus. According to the present invention, the roll forming apparatus comprises: a pair of stands installed on a base to be spaced apart from each other; upper and lower shafts installed on the pair of stands to be vertically spaced apart from each other; and a plurality of upper and lower rolls installed on the upper and lower shafts, respectively. Each of the upper and lower shafts comprises a first shaft having a male gear part disposed on an end part and a second shaft having a female gear part disposed on an end part to be engaged with a tooth shape of the male gear part. The male and female gear parts have a tooth shape groove formed in the longitudinal direction of the upper and lower shafts, such that a width between the upper and lower rolls is able to be adjusted in accordance with a tooth shape coupling degree of the male and female gear parts. Accordingly, the shaft mounting a role thereon is divided into the first and second shafts, and the width adjustment part for adjusting the width between the rolls is disposed on the first and second shafts, such that an additional forming roll installation process is not required when changing a C-shaped forming size in a roll forming process and the width between the rolls is automatically adjusted through user operation, and thus occurrence of manufacturing, maintenance, and repair expenses in accordance with manufacturing of an additional forming roll is able to be prevented. Moreover, additional roll installation and existing roll dismantling works are omitted to improve productivity, and thus costs are able to be reduced.

Description

[0001] ROLL FORMING SYSTEM [0002]

The present invention relates to a roll forming apparatus, and more particularly, to a roll forming apparatus in which, when changing the C-shaped steel forming size in a roll forming process, A maintenance cost and a maintenance cost due to the production of the additional forming roll can be prevented and the cost can be reduced by improving the productivity by omitting the installation of the additional roll and the existing roll disassembling operation .

Generally, the forming of a linear type beam current is performed by a roll forming system in which a roll former composed of an upper roll and a lower roll is arranged in ten or more stages and the material to be fed is bent into various shapes and molded.

In this roll forming system and its process, as shown in Fig. 1, an uncoiler for releasing a coil to be fed is formed in front of the process line to form an uncoiling step, and a coil of a strip, which is unwound from the uncoiler, A straightener extending to the steel panel is provided on the rear side thereof to form a straightening step.

In the rear of the straightener, a band-shaped steel panel supplied from the straightener is provided with a brake press for forming holes for various purposes for assembling the main beam to be formed, thereby proceeding with the piercing step.

Further, the roll former unit constituted by the roll formers (R1 to R7, not shown) having 10 or more stages described above is disposed in the rear of the brake press and is provided with a strip- And a roll forming step of performing roll forming on the shape of a forming beam to be obtained by bending and forming the film sequentially.

And a round bender formed of a plurality of left and right curvature forming rolls for forming a curvature of the roll forming product having a predetermined curvature is provided at the rear of the roll former unit. The round bender is provided along the radius of curvature to be formed, By passing the beam, a bending step of manufacturing a finished product with a certain curvature is achieved.

In such a roll forming system, as shown in Fig. 2, for example, in order to form the C-shaped steel, the blade A is firstly formed, then the secondary forming is performed on the width forming roll, do.

The foaming rolls may be formed, for example, in an 11-step roll. The forming rolls 1 to 3 sequentially form the wing portion A, and the forming rolls 4 to 7 form the width portion B , And the forming rolls 8 to 11 form a portion of the height (C).

In general, the C-section steel is divided into 100 × 50 × 20, 125 × 50 × 20, 150 × 50 × 20, 150 × 65 × 20, 150 × 75 × 25, and 200 × 75 × 25 depending on the size. Each C In order to perform the molding required for the section steel, an additional roll was put in a C-shaped steel forming roll for forming a 100 (width) B, to produce a finished molded product having a width of 100 to 200.

Conventionally, in order to insert additional rolls when the size of C-shaped steel is changed, the stand base bolt is disassembled and the roll shaft fixing nut is disassembled to disassemble the stand. After the operator inserts the additional roll by manual force And the molding size of the C-shaped steel was changed by putting the material.

As described above, when the C-shaped steel product is different in width, height, and blade size, it is necessary to additionally form rolls in order to change the C-shaped steel forming size while the basic roll is installed. Cost, maintenance cost, and maintenance cost. In addition, conventionally, since the additional forming rolls are manually installed by a worker, it takes a considerable time to stop the current operation and install additional rolls due to the manual roll installation, resulting in a decrease in productivity and a rise in costs It implies. Due to these drawbacks, it is difficult to produce specifications other than the size of the C-shaped steel to be basically formed on the actual site.

Korean Registered Patent No. 10-1333268 (registered on November 20, 2013)

The present invention has been conceived to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a method of manufacturing a C- This controllable structure can prevent the production cost, maintenance cost, and repair cost from being produced by the additional forming roll production, and it is possible to improve the productivity by omitting the additional roll installation and the existing roll dismantling operation, And an object of the present invention is to provide a device.

According to an aspect of the present invention, there is provided an elevator apparatus comprising: a pair of stands spaced apart from each other on a base; upper and lower shafts vertically spaced apart from each other on the pair of stands; Wherein the upper and lower shafts each include a first shaft having a handle portion at an end thereof and a second shaft having an arm portion to be engaged with the handle portion at an end thereof, Wherein the male and female members are provided with a long tooth groove along the longitudinal direction of the upper and lower shafts so that the width between the upper and lower rolls can be adjusted according to the degree of tooth- to provide.

And a width adjusting unit for adjusting a width between the plurality of upper rolls and a width between the plurality of lower rolls, wherein the width adjusting unit is integrally formed or coupled to the outer surface of the first shaft, A first width adjusting unit having a cylindrical channel structure and having a first screw thread formed on an inner circumferential surface thereof, and a first upper and a lower roll of the upper and lower rolls being engaged; A second screw thread coupled to the outer surface of the second shaft and having a flange shape penetrating the center and screwed to the first screw thread is formed on an outer circumferential surface of the second shaft, A second width adjuster that adjusts the second width; A second width adjusting unit rotating shaft passing through the second upper and lower rolls and connected to the second width adjusting unit to rotate the second width adjusting unit; And a rotating power unit provided on the stand and capable of variably controlling transmission of rotational power to the second width adjusting unit by being selectively in contact with or spaced from the rotating shaft of the second width adjusting unit, The inner circumferential surface of the width adjusting portion may be provided with threads so as to be screwed together with each other.

And a width adjusting unit that adjusts a width between the plurality of upper rolls and a width between the plurality of lower rolls, wherein the width adjusting unit is coupled to an outer surface of an end of the first shaft, A first width adjuster to which the first upper and lower rolls of the upper and lower rolls are coupled; A second width adjuster coupled to an outer surface of an end portion of the second shaft and having a second screw thread on an outer circumferential surface thereof and the second upper and lower rolls of the upper and lower rolls being engaged; A width adjusting driving unit that is provided to surround the outer surfaces of the first width adjusting unit and the second width adjusting unit and has different threads on the inner circumferential surface divided into zones corresponding to the first screw thread and the second screw thread; A width adjusting driving unit rotating shaft passing through the second upper and lower rolls and connected to the width adjusting driving unit to rotate the width adjusting driving unit; And a rotating power unit provided on the stand and capable of variably controlling transmission of rotational power to the width adjusting driving unit by selectively contacting or being separated from the rotating shaft of the width adjusting driving unit, wherein the first screw thread and the second screw thread are screw- And the directions are opposite to each other.

The outer surface of the second shaft is provided with a thread, and an inner circumferential surface of the upper and lower rolls of the upper and lower rolls is provided with another thread to be screwed with the thread, and connected to the second upper and lower rolls A width-adjusting rotary shaft rotatably supporting the second upper and lower rollers with respect to the second shaft so as to adjust the relative positions of the second upper and lower rollers relative to each other; And a rotation power unit provided on the stand and selectively capable of being in contact with or spaced from the width regulation rotary shaft to variably adjust transmission of rotational power to the width regulation rotary shaft.

And a width adjusting unit for adjusting a width between the plurality of upper rolls and a width between the plurality of lower rolls, wherein the width adjusting unit comprises: a width adjusting driving cam rotating unit provided on the stand; And a second upper and lower rolls of the upper and lower rolls are coupled to each other, and the width adjusting driving cams are coupled to the upper and lower rollers, A width adjusting drive cam portion having a gear portion configured to rotate by a rotating portion and provided with a width adjusting guide portion for guiding a width adjustment between a plurality of upper rolls and a plurality of lower rolls; The width adjusting driving cam portion is formed integrally with or coupled to the outer surface of the first shaft, and is engaged with the width adjusting guide portion to adjust the gap between the width adjusting driving cam portion and the width adjusting guide portion A width adjusting driven cam part coupled to the first upper and lower rolls of the upper and lower rolls; And a supporter having a support groove for supporting and supporting the width adjusting driven cam portion during rotation of the width adjusting driven cam portion so that a plurality of guide ribs provided on the outer surface of the width adjusting driven cam portion can be inserted correspondingly, The width regulating drive cam rotation portion may be selectively in contact with or spaced from the gear portion to variably control transmission of rotational power to the width regulating drive cam portion.

According to the above-described roll forming apparatus of the present invention, the shaft to which the roll is mounted is divided into first and second shafts, and the width adjusting portions for adjusting the widths between the rolls are provided on the first and second shafts, In case of changing the size of the C-shaped steel molding, additional roll forming process is not necessary, and the width between the rolls can be automatically adjusted by the user's operation, resulting in production cost, maintenance cost and maintenance cost It is possible to reduce the cost by improving the productivity by omitting the installation of the additional roll and the disassembling of the existing roll.

1 is a view showing a general roll forming apparatus.
Fig. 2 is a view schematically showing a process of forming a C-shaped steel by roll-forming a material.
3 is a partial view showing a roll forming apparatus according to the first embodiment of the present invention.
FIG. 4 is a view showing the movement states of the first shaft and the second shaft in FIG. 3;
5 is an exploded perspective view showing the first shaft and the second shaft in Fig. 3;
6 is a partial view showing a roll forming apparatus according to a second embodiment of the present invention.
7 is a view partially showing a roll forming apparatus according to a third embodiment of the present invention.
8 is a view partially showing a roll forming apparatus according to a fourth embodiment of the present invention.
9 is a view partially showing a roll forming apparatus according to a fifth embodiment of the present invention.
10 is a perspective view showing a main configuration of a width adjusting unit in a roll forming apparatus according to a fifth embodiment of the present invention.
11 is a view showing an operating state of a width adjusting unit in a roll forming apparatus according to a fifth embodiment of the present invention.
12 is a view showing a supporter in a roll forming apparatus according to a fifth embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know. Wherein like reference numerals refer to like elements throughout.

A roll forming apparatus according to a preferred embodiment of the present invention is an apparatus capable of automatically forming a C-shaped steel having various sizes by employing a structure capable of automatically adjusting the width between the forming rolls. The C- In addition, since C-shaped steel having various sizes can be formed, it is possible to improve the production amount because it is an automatic method, not a manual roll replacement method by a conventional worker. Further, Can be saved.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to various embodiments and drawings.

1st Example

The roll forming apparatus according to the first embodiment of the present invention allows the raw material wound on the uncoiler to be released while entering the plurality of forming rolls to form a flat plate-shaped initial material into C-shaped steel having a C-shaped cross section do.

Before describing in detail, the C-shaped steel roll forming process will be briefly described. The edge of the flat sheet material is first bent to form the wing portion, and the wing portion is secondarily formed in the width forming roll. Finally, . The entire foaming roll may be constituted by 11 stages along the progressing direction of the forming line, the forming rolls 1 to 3 form the wing portion, the forming rolls 4 to 7 are formed by the width, To form the height portion of the C-shaped steel.

3 to 5, the roll forming apparatus according to the first embodiment of the present invention includes a pair of stands 111 and 112 provided on a base 100 so as to be spaced apart from each other, a pair of stands 111 and 112 And a plurality of upper and lower rolls 140 and 150 installed on the upper and lower shafts 120 and 130 and the upper and lower shafts 120 and 130, respectively. In the above-described configuration, for example, in the case where the entire apparatus is composed of eleven stages, it is disclosed in advance that each of the eleven stages is provided in each of the eleventh stages. In some cases, the base may be used in common. Further, the roll forming apparatus according to the embodiment of the present invention includes a stand transporting means 160 for approaching or separating any one of the pair of stands 111, 112 in the other direction, (Not shown) for raising and lowering the upper and / or lower shafts 120 and 130 so that a roll forming operation can be performed. The shaft elevating means is equally applicable to other embodiments described later.

One of the stands 111 and 112 is spaced apart from the base 100. One of them is a fixed stand 111 fixed to the base 100 and the other is a movable stand 112).

The distance between the stationary stand 111 and the movable stand 112 can be increased or decreased by moving or moving the movable stand 112 toward or away from the stationary stand 111 via the stand transporting means 160, The distance between the upper and lower rolls 140 and 150 provided in the upper and lower shafts 120 and 130 provided between the moving stand 111 and the moving stand 112 can be increased or decreased. The upper and lower rolls 140 and 150 may be formed of at least two or more rollers, respectively.

3 to 5, the upper shaft 120 and the lower shaft 130 each have a first shaft 121 having an end portion 123 provided with a hand portion 123, And a second shaft 122 provided at an end thereof with a female gear portion 124 to be engaged with a gear portion 123.

That is, the upper shaft 120 and the lower shaft 130 each have a structure that is not a single integral structure but a pair of which is detachable from each other, and the hand grip portion 123 is provided on the side of the arm portion 124, The distance that the end of the shaft 121 is inserted to the inside of the end portion of the second shaft 122 and the distance that the shaft 121 moves outwardly in the inserted state are adjusted so that the width between the pair of upper rolls 140, (150). Of course, the pair of upper rolls 140 and the pair of lower rolls 150 may be coupled to the upper shaft 120 and the lower shaft 130 so as to be simultaneously rotatable by using separate engaging means such as a key groove, .

The hand grippers 123 and the grippers 124 are provided with long tooth-like grooves along the longitudinal direction of the upper and lower shafts 120 and 130, The width between the pair of upper rolls 140 and the width between the pair of lower rolls 150 becomes adjustable. This width adjustment is carried out by driving the stand transporting means 160 to move the movable stand 112 to the stationary stand 111 side and adjusting the degree of the tooth engagement between the hand grippers 123 and the arm grippers 124 as described above, The movable stand 112 is moved in a range in which the hand unit 123 and the right hand unit 124 are not separated from each other in order to facilitate coupling between the hand unit 123 and the arm unit 124 .

In the first embodiment of the present invention, the stand transporting means 160 is applicable to a gear-rack module, a ball screw module, an LM guide module, and the like.

3, when a gear-rack module is used as an example, a rack 161 is provided below the movable stand 112, and a rotary gear 162 is provided for gear-engagement with the rack 161, The movable stand 112 can move the upper portion of the base 100 in a linear reciprocating motion together with the rack 161 by rotating the rotary gear 162 through the driving motor. It is preferable that the driving motor is applied as a servo motor which can rotate in normal and reverse directions and is easy to control rpm, or as a stepping motor.

3, on the movement trajectory extension line of the movable stand 112 on the base 100, there is a separate space for restricting the distance of movement of the movable stand 112 (movement in the direction away from the stationary stand) It is preferable that a stopper 163 is provided. The movement of the movable stand 112 is restricted by the stopper 163 even if the user rotates the rotary gear 162 continuously for a predetermined length of time or carelessly so that the separation between the hand grippers 123 and the grippers 124 Can be prevented.

The base 100 is provided with a plurality of stopper insertion holes 164 spaced apart from each other along a movement trace extension line of the movable stand 112. The stopper 163 can be selectively inserted into the plurality of stopper insertion holes 164 , The operator can use the stopper 163 at an appropriate position for restricting the backward movement of the movable stand 112.

Second Example

Hereinafter, a roll forming apparatus according to a second embodiment of the present invention will be described. Repeated description of the same configuration as that of the first embodiment will be omitted, and the same reference numerals as in the 200th embodiment will be used for the same configuration.

Hereinafter, for convenience of explanation, the case where the upper roll and the lower roll are respectively provided as a pair will be described as a reference, and in the drawings, the upper roll and the lower roll disposed on the left side are referred to as a first upper roll and a first lower roll , And the upper roll and the lower roll disposed on the right side are referred to as a second upper roll and a second lower roll. The roll width adjusting means to be described later is applied to both the upper shaft and the lower shaft in the same structure. In the following embodiments, the upper shaft and the lower shaft will be described with reference to those applied to the upper shaft. Further, the shaft elevating means (not shown) described in the first embodiment can be similarly applied to other embodiments to be described later, and the illustration is omitted.

In the first embodiment of the present invention, if the structure for adjusting the width between the rolls by moving the movable stand is adopted, in the second embodiment, the stand 210 on both sides maintains the fixed state, So that the width between the rolls can be controlled. On the other hand, in the initial state, when the width between the rolls is increased, the ends of the first shaft 221 and / or the second shaft 222 may have a state of protruding further outward from the stand 210, It is preferable that the shaft rotation coupling structure between the stand and the first shaft and the second shaft is appropriately applied. That is, it is needless to say that even if the first shaft and / or the second shaft protrudes more than the initial state by a predetermined amount, the shaft rotation coupling structure is provided so that the shaft rotation is not difficult.

6, the roll forming apparatus according to the second embodiment of the present invention is provided in the first shaft 221 and the second shaft 222 and has a width between the pair of upper rolls 241 and 242, And a width adjusting unit 270 for adjusting the width between the pair of lower rolls.

The width adjusting unit 270 includes a first width adjusting unit 271, a second width adjusting unit 274, a second width adjusting unit rotating shaft 277, and a rotating power unit 281.

First, the first width adjuster 271 is integrally formed or coupled to the outer surface of the first shaft 221. The first width adjuster 271 may be coupled to the first shaft 221 through welding or other screw fastening.

The first width adjusting portion 271 has a first screw thread 273 formed on an inner circumferential surface of a channel wall protruding from a disc-shaped base plate 272 having a cylindrical channel structure with an inner space provided with a through- Is formed. The first upper roll 241 and the first lower roll are coupled to the base plate 272 through a screw or the like. Accordingly, when the first shaft 221 rotates through driving of a shaft rotation driving unit (not shown) including a main driving motor, a chain, and the like, the first width adjusting unit 271, the first upper roll 241, The lower roll is simultaneously rotated.

However, the present invention is not limited thereto. The first upper roll 241 and the first lower roll may be coupled to the first shaft 221 through a keyway, a key, or the like without being directly coupled to the base plate 272.

Next, the second width adjuster 274 is coupled to the outer surface of the second shaft 222. [ The second width adjuster 274 is a portion that rotates at the same time when the second shaft 222 rotates. In the embodiment of the present invention, the second width adjuster 274 is coupled to the second shaft 222 through a screw coupling method.

The second width adjuster 274 has a flange shape passing through the center so that the second shaft 222 can pass through. The second width adjuster 274 has a flange portion protruding from the base plate 275, like the first width adjuster, A second thread 276 is formed. The second upper roll 242 and the second lower roll are coupled to the base plate 275 through a screw or the like. The outer circumferential surface of the second shaft 222 and the inner circumferential surface of the second width adjuster 274 are provided with threads 291 and 292 so as to be screwed together with each other. When the shaft 222 rotates, the second width regulating portion 274, the second upper roll 242, and the second lower roll simultaneously rotate.

When the first shaft 221 rotates, the first width adjuster 271 also rotates simultaneously. When the second shaft 222 rotates at the same rotational speed as the first shaft 221, The screw 274 is also rotated at the same time so that the second screw 222 is not screwed or screwed into the second width adjuster 274 during the rotation. That is, with respect to the second shaft 222, the second width adjuster 274 can maintain the rotation state while maintaining the initial setting engagement position. Likewise, the first width adjusting portion 271 and the second width adjusting portion 274, which are screw-coupled to each other, are also rotated at the same rotational speed to rotate the first width adjusting portion 271 The screwing and thread tightening action of the second width adjusting portion 274 is not performed. That is, the second width adjuster 274 can maintain the rotation state while maintaining the initial setting engagement position with respect to the first width adjuster 271.

However, in the embodiment of the present invention, by rotating the first width adjusting portion 271 or the second width adjusting portion 274 while the rotation of the first shaft 221 and the second shaft 222 is stopped, The width between the pair of upper rolls 241 and 242 and the width between the pair of lower rolls can be increased or decreased. Hereinafter, for convenience of explanation, a description will be made with reference to a structure in which the width of the first width adjuster 271 is adjusted by rotating the second width adjuster 274.

The second width regulating unit rotation shaft 277 passes through the second upper roll 242 and the second lower roll and is connected to the second width regulating unit 274 to rotate the second width regulating unit 274 . The second width regulating unit rotation shaft 277 is detachably coupled to the second width regulating unit 274 through a screw or the like and has a substantially ring-shaped cross section in the second upper roll 242 and the second lower roll Similarly, a ring-shaped through hole is formed so that the second width adjuster rotation shaft 277 passes through. Therefore, when the rotation of the first shaft 221 and the second shaft 222 is stopped and the rotation axis 277 of the second width adjuster is rotated, the rotation of the second width adjuster 274 is performed, The second width regulating portion 274 is moved with respect to the first width regulating portion 271 in a state where the width between the first upper rolls 241 and the second lower rolls can be increased or decreased . A gear tooth portion 278 is provided at the end of the second width adjuster rotary shaft 277 and the second width adjuster rotary shaft 277 can be rotated through gear engagement.

Next, the rotary power unit 281 is provided on the stand 210 and is selectively in contact with or spaced from the second width adjuster rotary shaft 277 to variably control the transmission of rotational power to the second width adjustor 274 do.

6, the rotational power section 281 rotates by the driving force of the motor 282 and the motor 282, and the gear teeth 278 of the second width regulating section rotation shaft 277 And a motor elevating portion 284 for elevating and lowering the motor 282 along the height direction of the stand 210. [

The motor 282 is applicable to a servomotor or the like capable of normal and reverse rotations. The motor elevator 284 is not specifically shown in the drawing, but may be a gear-rack module, a ball screw module, And a detailed description of a technique for elevating and lowering the motor 282 along the longitudinal direction of the stand 210 using such a module will be apparent to those skilled in the art, and thus a detailed description thereof will be omitted.

During the rotation of the first shaft 221 and the second shaft 222, the motor elevating portion 284 moves the motor 282 to rotate the power gear 283 and the gear tooth portion 278 are separated from each other and the width of the rolls is required to be adjusted, the motor elevating portion 284 moves the motor 282 to engage the power gear 283 and the gear tooth portion 278 with each other, The second width regulating portion 274, the second upper roll 242 and the second lower roll are spaced apart from the first width regulating portion 271 by driving the first width regulating portion 272, The width between the rolls can be increased or decreased.

Third Example

Hereinafter, a roll forming apparatus according to a third embodiment of the present invention will be described, and repetitive description of the same configurations as those of the first and second embodiments will be omitted. In the same configuration, do.

In the first embodiment of the present invention, if the structure for adjusting the width between the rolls by moving the movable stand is adopted, in the third embodiment, the stands 310 on both sides are maintained in a fixed state, Is adopted. Similarly, in the third embodiment, a structure for adjusting the width between the rolls is adopted through the width adjusting unit 370, which will be described later.

7, the roll forming apparatus according to the third embodiment of the present invention is provided with a first shaft 321 and a second shaft 322, and has a width between a pair of upper rolls 341 and 342, And a width adjusting portion 370 for adjusting the width between the lower rolls of the pair.

The width adjusting unit 370 includes a first width adjusting unit 371, a second width adjusting unit 374, a width adjusting driving unit 376, a width adjusting driving unit rotating shaft 377, and a rotating power unit 381 .

First, the first width adjusting portion 371 is coupled to the outer surface of the end portion of the first shaft 321 so as to be simultaneously rotated through a screw or the like. A first screw thread 372 is formed on the outer circumferential surface thereof and the first upper roll 341 and the first lower roll of the upper and lower rolls are coupled to rotate simultaneously through a screw or the like.

The first width adjuster 371 is formed in a cylindrical shape having a through hole at its inner side and is coupled to the first shaft 321, the first upper roll 341 and the first lower roll through screws or the like, The first upper roll 341 and the first lower roll 341 rotate at the same time when the first shaft 321 rotates through driving of a shaft rotation driving unit (not shown) .

The first upper roll 341 and the first lower roll may be coupled to the first shaft 321 through a keyway or a key without being directly coupled to the first width adjuster 371 It is possible.

Next, the second width adjusting portion 374 is coupled to the outer surface of the end portion of the second shaft 322 so as to be simultaneously rotated through a screw or the like. A second screw thread 375 is formed on the outer circumferential surface thereof and the second upper roll 342 and the second lower roll of the upper and lower rolls are coupled to rotate simultaneously through a screw or the like.

Since the second width regulating portion 374 is formed in a cylindrical shape having a through hole at its inner side and is coupled to the second shaft 322, the second upper roll 342, and the second lower roll through screws or the like, The second upper roll 342 and the second lower roll 342 rotate at the same time when the second shaft 322 rotates through driving of a shaft rotation driving unit (not shown) .

The second upper roll 342 and the second lower roll may be coupled to the second shaft 322 through a keyway or a key without being directly coupled to the second width adjuster 374, It is possible.

The width adjusting driving unit 376 is formed in a hollow cylindrical shape so as to surround the outer surfaces of the first width adjusting unit 371 and the second width adjusting unit 374 and has a first screw thread 372 Different threads 387 and 388 are provided for each region to correspond to the second thread 375.

In the embodiment of the present invention, the first thread 372 and the second thread 375 are formed opposite to each other in the direction of screw rotation, and the threads 387 and 388, The screw rotation directions of both sides are formed opposite to each other so as to be respectively associated with the first screw thread 372 and the second screw thread 375. Accordingly, when the width adjusting driving unit 376 is rotated in a state where the width adjusting driving unit 376, the first width adjusting unit 371 and the second width adjusting unit 374 are coupled to each other, the first width adjusting unit 371 And the second width adjusting portion 374 are moved toward each other and the width adjusting driving portion 376 is rotated in the other direction, the first width adjusting portion 371 and the second width adjusting portion 374 are moved toward each other And the width between the rolls can be adjusted by moving in the direction in which they are spaced apart.

When the first shaft 321 rotates, the first width adjuster 371 also rotates simultaneously. When the second shaft 322 rotates at the same rotational speed as the first shaft 321, The width adjusting portion 374 which is screwed simultaneously with the first width adjusting portion 371 and the second width adjusting portion 374 also rotates at the same time, The screw tightening or thread tightening action of the first width adjusting portion 371 and the second width adjusting portion 374 with respect to the driving portion 376 is not performed.

However, in the embodiment of the present invention, the rotation of the first shaft 321 and the second shaft 322 is stopped and the width adjustment driving unit 376 is rotated to finally rotate the pair of upper rolls 341 and 342 Width and the width between the pair of lower rolls can be increased or decreased.

The width adjusting driving unit rotating shaft 377 passes through the second upper roll 342 and the second lower roll and is connected to the width adjusting driving unit 376 to rotate the width adjusting driving unit 376. The width adjusting driving unit rotating shaft 377 is coupled to the width adjusting driving unit 376 so as to be detachable through a screw or the like, or a screw is provided at the end of the width adjusting driving unit rotating shaft 377 and the thread is coupled to the width adjusting driving unit 376 Other threads may be provided and threaded together. Similarly, a ring-shaped through hole is formed in the second upper roll 342 and the second lower roll in such a manner that the width adjustment driving unit rotary shaft 377 having a substantially ring-shaped cross section passes through. Therefore, when the rotation of the first shaft 321 and the second shaft 322 is stopped and the rotation axis 377 of the width adjustment driving unit is rotated, the rotation of the width adjustment driving unit 376 is performed, The distance between the width adjusting portion 371 and the second width adjusting portion 374 is increased or decreased.

The first width adjusting part 371 and the second width adjusting part 374 may be formed by rotating the width adjusting driving part 376 in one direction according to the shapes of the first screw thread 372 and the second screw thread 375, So that the width between the pair of upper rolls 341 and 342 and the width between the lower rolls are reduced. The first width regulating portion 371 and the second width regulating portion 374 are moved in a direction in which they are spaced apart from each other, and accordingly, the gap between the pair of upper rolls 341 and 342 And the width between the lower rolls is increased. A gear tooth portion 378 is provided at an end of the width adjusting driving shaft 377, and the width adjusting driving portion rotating shaft 377 can be rotated through gear engagement.

The rotation power section 381 is provided on the stand 310 and is selectively in contact with or spaced from the width adjustment driving section rotary shaft 377 to variably control the transmission of rotational power to the width adjustment driving section 376.

7, the rotational power section 381 is rotated by the driving force of the motor 382 and the motor 382, and is rotated together with the gear teeth 378 of the width adjusting driving section rotational shaft 377 And a motor lift portion 384 for lifting and lowering the motor 382 along the height direction of the stand 310. The power take-

The motor 382 is applicable to a servomotor or the like capable of normal and reverse rotations. The motor elevator 384 is not specifically shown in the drawing, but may be a gear-rack module, a ball screw module, And a detailed description of a technique for elevating and lowering the motor 382 along the longitudinal direction of the stand 310 using such a module will be apparent to those skilled in the art and will not be described in detail below.

During the rotation of the first shaft 321 and the second shaft 322, the motor elevating portion 384 moves the motor 382 to rotate the power gear 383 and the gear tooth portion 378 are separated from each other and the width of the rolls is required to be adjusted, the motor elevating portion 384 moves the motor 382 to engage the power gear 383 and the gear tooth portion 378 to each other, 382 in the forward and reverse directions to increase or decrease the width between the rolls.

Fourth Example

Hereinafter, a roll forming apparatus according to a fourth embodiment of the present invention will be described. Repeated descriptions of the same configurations as those of the first and second embodiments will be omitted. do.

In the first embodiment of the present invention, if the structure for adjusting the width between the rolls by moving the movable stand is adopted, in the fourth embodiment, the stand 410 on both sides can be maintained in a fixed state, And the width between the rolls is adjusted through a configuration for allowing the rolls to be adjusted.

8, in the roll forming apparatus according to the fourth embodiment of the present invention, the outer surface of the second shaft 422 is provided with threads 423, and the upper rolls 441 and 442 and the second Another thread 425 is provided on the inner circumferential surface of the upper roll 442 and the second lower roll to threadably engage the thread 423.

The roll forming apparatus according to the fourth embodiment of the present invention includes a second upper roll 442 and a second lower roll connected to the second upper roll 442 and the second lower roll, A width adjusting rotary shaft 477 capable of adjusting a relative coupling position with respect to each other, and a rotary power unit 481.

A thread 423 is provided on the end of the second shaft 422 at a predetermined length or more and a thread 423 is screwed to the second upper roll 442 and the second lower roll 423, Another thread 425 is formed.

The width adjusting rotary shaft 477 is formed in an inner hollow cylindrical shape and connected to the lower area of the second upper rolls 442 and the second lower rolls so as to be rotatable. The width adjusting rotary shaft 477 is coupled to the second upper roll 442 and the second lower roll so as to be separable through a screw or the like, or the end of the width adjusting rotary shaft 477 is threaded, Other threads may be provided to threadably engage the threads. Therefore, when the rotation of the first shaft 421 and the second shaft 422 is stopped, the rotation of the second upper roll 442 and the second lower roll is performed by rotating the width adjusting rotary shaft 477 The width between the first upper roll 441 and the second upper roll 442 is substantially equal to the width of the first upper roll 442 and the second upper roll 442 by moving the second upper roll 442 and the second lower roll along the longitudinal direction of the second shaft 422, The width adjustment between the lower roll and the second lower roll becomes possible. At the end of the width adjusting rotary shaft 477, a gear tooth portion 478 is provided.

The rotational power section 481 is the same as in the third embodiment described above, and the technical content of increasing / decreasing the width between the rolls through the engagement of the width adjusting rotary shaft 477 with the gear teeth 478 is also the same. It will be omitted.

Fifth Example

Hereinafter, a roll forming apparatus according to a fifth embodiment of the present invention will be described. Repeated explanations of the same configurations as those of the first and second embodiments will be omitted, and the same reference numerals as those of the first and second embodiments will be used do.

In the first embodiment of the present invention, if the structure for adjusting the width between the rolls by moving the movable stand is adopted, in the fifth embodiment, the stand 510 on both sides is kept in a fixed state, Is adopted.

9, the roll forming apparatus according to the fifth embodiment of the present invention is provided with a first shaft 521 and a second shaft 522, and is provided with a pair of first upper rolls 541 and second A width adjuster 570 for adjusting the width between the upper rolls 542 and the width between the pair of first lower rolls and the second lower rolls.

The width adjusting portion 570 includes a width adjusting driving cam rotation portion 581, a width adjusting driving cam portion 572, and a width adjusting driven cam portion 591. And a supporter 596.

The width adjusting driving cam rotating portion 581 is engaged with the gear portion 574 of the width adjusting driving cam portion 572 to rotate the gear portion 574 as described below. As shown in FIG.

Next, the width-adjusting drive cam portion 572 may be integrally formed or coupled to the outer surface of the second shaft 522, for example, detachably coupled through a screw connection, or integrally formed through welding. A through hole 573 is formed at the center of the width adjusting drive cam portion 572 so as to penetrate the second shaft 522 and a second shaft 522 is inserted through the through hole 573.

The upper rolls 541 and 542 and the second upper rolls 542 of the lower rolls and the second lower rolls are coupled to each other through the width adjusting drive cam portion 572 and are connectable through, for example, a screw. The width adjusting drive cam portion 572 is provided at its end portion with a gear portion 574 for rotation by the width adjusting drive cam rotation portion 581. When the gear portion 574 is rotated, not only the entire width adjustment drive cam portion 572 The second upper roll 542, and the second lower roll may be rotated.

The width adjusting drive cam portion 572 is provided with a width adjusting guide portion (not shown) for guiding the width between the pair of first upper rolls 541 and the second upper rolls 542, 575 are provided.

The width regulating guide portion 575 guides the width regulating driven cam portion 591 to an easy moving operation (approaching or separating to the width regulating drive cam portion) and is provided on the same line as the upper surface of the gear portion 574, Two lifting portions 577 are formed in the vertical direction at a position higher than the upper surface of the gear portion 574 and the lifting portion 577 can be reached from the lower portion 576 to the lifting / And the descending portion 576 and the ascending / descending moving portion 577 are connected to each other by the inclined surfaces.

Next, the width-adjusting driven cam portion 591 may be integrally formed or coupled to the outer surface of the first shaft 521, for example, detachably coupled through a screw connection, or integrally formed through welding. A through hole 592 is formed in the center of the width adjusting driven cam portion 591 so as to penetrate the first shaft 521 and the first shaft 521 is inserted through the through hole 592.

The upper rolls 541 and 542 and the first upper roll 541 of the lower rolls and the first lower roll are coupled to each other through the width adjusting driven cam portion 591 and are connectable through, for example, a screw. The width adjusting driven cam portion 591, the first upper roll 541, and the first lower roll rotate simultaneously when the first shaft 521 rotates.

The width adjusting driven cam portion 591 is attached to one side of the width adjusting drive cam portion 572 and moves in correspondence with the rotation of the width adjusting guide portion 575 of the width adjusting drive cam portion 572, And a gap regulating portion 593 which is engaged with the width regulating guide portion 575 is formed.

The gap regulating portion 593 of the width regulating cam portion 591 is engaged with the width regulating guide portion 575 of the width regulating drive cam portion 572, 591 can be linearly reciprocated, and two main moving parts 594 are formed in a horizontal or vertical direction at a position extending downward from a lower surface of one end of the width adjusting driven cam part 591, And the main moving part 594 is connected to the one lower surface by the inclined surface.

The operation principle of the width adjusting guide portion 575 of the width adjusting drive cam portion 572 and the gap adjusting portion 593 of the width adjusting driven cam portion 591 will be described with reference to FIGS. 10 to 12. FIG.

The linear reciprocating movement of the width adjusting driven cam portion 591 is controlled by a state in which the width adjusting driven cam portion 591 is engaged with one side of the width adjusting drive cam portion 572, The main moving portion 594 of the width adjusting driven cam portion 591 is adjusted in the width direction when the width adjusting driving cam portion 572 is rotated by 1/2 in a state where the width adjusting driving cam portion 572 is positioned on the down portion 576 of the width adjusting driving cam portion 572. [ The width adjusting driven cam portion 591 reaches the lifting / lowering moving portion 577 along the inclined surface connecting the descending portion 576 and the lifting / lowering moving portion 577 of the width adjusting guide portion 575 of the driving cam portion 572, As shown in FIG.

The lowering operation of the width adjusting driven cam portion 591 is performed in a state in which the width adjusting driven cam portion 591 is raised or lowered, that is, when the main moving portion 594 of the width adjusting driven cam portion 591 is moved up / The main moving portion 594 of the width adjusting driven cam portion 591 is moved to the width adjusting guide portion 572 of the width adjusting driving cam portion 572 when the width adjusting driving cam portion 572 is rotated by 1/2 The width adjusting driven cam portion 591 is moved downward by reaching the descending portion 576 along an inclined surface connecting the lifting and lowering moving portion 577 and the descending portion 576.

On the other hand, in the above description and the following description, the expression "lifting / lowering movement of the width-adjusting driven cam portion 591" is used for convenience of explanation based on the state of the related drawings, The width between the rolls is adjusted by moving in the lateral direction substantially.

10 to 12, a plurality of guide ribs 595 are formed on the side surface of the end portion of the width adjusting driven cam portion 591 when the width adjusting driven cam portion 591 is moved up and down as described above And is inserted into the support groove 597 of the supporter 596 so that the width adjusting driven cam portion 591 can be moved up and down while being firmly supported by the supporter 596.

12, the supporter 596 supports the width-adjusting driven cam portion 591 when the width-adjusting driven cam portion 591 is rotated. As shown in Fig. 12, The support groove 597 in the diagonal direction corresponding to the copper wire of the guide rib 595 generated in accordance with the lowering operation, that is, the rising / lowering wire of the guide rib 595 is constituted so that the width adjusting driven cam portion 591 can easily / Down operation.

The width adjusting drive cam rotation section 581 can selectively adjust the transmission of rotational power to the width adjustment drive cam section 572 by selectively contacting or spacing the gear section 574 of the width adjustment drive cam section 572. [ The width adjusting driving cam rotating portion 581 is the same as the rotating power portion of the third embodiment described above, and the technical content of increasing / decreasing the width between the rolls through coupling with the gear portion 574 is also the same. .

In the above-described various embodiments, the roll forming apparatus according to the present invention has a simple structure without a small number of configurations for controlling the widths between the rolls, so that the mounting / mounting operation can be performed easily. , It has the advantage of low operating cost and thus it can increase the competitiveness of the product by reducing the manufacturing cost by improving the productivity.

Although the present invention has been described with reference to the accompanying drawings and the preferred embodiments described above, the present invention is not limited thereto but is limited by the following claims. Accordingly, those skilled in the art will appreciate that various modifications and changes may be made thereto without departing from the spirit of the following claims.

100: Base 110: Stand
120: upper shaft 121: first shaft
122: second shaft 123:
124: memorization unit 130: lower shaft
140: upper roll 150: lower roll
160: stand transport means 241: first upper roll
242: second upper roll 270, 270: width adjusting portion
271,371: first width adjuster 273: first thread
274,374: second width adjuster 276: second thread
277: second width regulating portion rotation shaft 278: gear tooth portion
281: rotating power section 284: motor elevating section
376: width adjusting driving unit 377: width adjusting driving unit rotating shaft
381: rotational power section 423:
477: Width adjustment rotary shaft 481:
570: width adjusting portion 581: width adjusting driving cam rotating portion
572: width adjusting drive cam portion 574: gear portion
575: width regulation guide portion 576:
577: lifting and lowering easel 591: width adjusting driven cam portion
593: gap adjusting part 594: main moving part
595: guide ribs 596: supporter
597: Support Home

Claims (5)

A pair of stands spaced apart from each other on a base, upper and lower shafts provided so as to be vertically spaced apart from each other on the pair of stands, and a plurality of upper and lower rolls respectively mounted on the upper and lower shafts, as,
Wherein the upper and lower shafts each include a first shaft having a handle portion provided at an end thereof and a second shaft provided at an end thereof with a rocker portion engaged with the handle portion,
Wherein the width of the upper and lower rollers is adjustable in accordance with the degree of tooth-to-tooth engagement between the male and female fisher members,
And a width adjusting unit for adjusting a width between the plurality of upper rolls and a width between the plurality of lower rolls, wherein the width adjusting unit is integrally formed or coupled to the outer surface of the first shaft, A first width adjusting unit having a cylindrical channel structure and having a first screw thread formed on an inner circumferential surface thereof, and a first upper and a lower roll of the upper and lower rolls being engaged; A second screw thread coupled to the outer surface of the second shaft and having a flange shape penetrating the center and screwed to the first screw thread is formed on an outer circumferential surface of the second shaft, A second width adjuster that adjusts the second width; A second width adjusting unit rotating shaft passing through the second upper and lower rolls and connected to the second width adjusting unit to rotate the second width adjusting unit; And a rotation power unit provided on the stand and selectively capable of being in contact with or separated from the rotation axis of the second width adjuster to variably adjust the transmission of rotational power to the second width adjuster,
And a thread is provided on the outer surface of the second shaft and the inner surface of the second width adjusting portion so as to be screwed together with each other. delete delete The method according to claim 1,
Wherein a thread is provided on the outer surface of the second shaft and another thread is provided on an inner circumferential surface of the second upper and lower rolls of the upper and lower rolls so as to be screwed with the thread,
A width adjusting rotary shaft connected to the second upper and lower rolls and capable of adjusting relative positions of the second upper and lower rolls relative to the second shaft by rotating the second upper and lower rolls; And
Further comprising a rotation power unit provided on the stand and capable of variably controlling transmission of rotational power to the width adjusting rotary shaft by being selectively in contact with or spaced from the width adjusting rotary shaft. delete

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