JP6245492B2 - Long workpiece processing apparatus and processing method - Google Patents

Description

  The present invention relates to a machining apparatus and a machining method for machining a long workpiece while moving it in the axial direction.

  There is known an apparatus for performing various kinds of processing while moving a long workpiece in the axial direction. For example, there are a large number of apparatuses that sequentially unwind and feed a wound long steel work and perform surface processing and heat treatment while moving the drawn long work in the axial direction.

  Many long workpieces have bent folds, and in particular, large bent folds exist when the wound long workpieces are used. In such a long work processing apparatus, various processes are performed after straightening the upstream side to reduce bending wrinkles.

For example, in the apparatus used in Patent Document 1 described below, a long workpiece after drawing is moved in the axial direction by a pinch roller while passing a large number of vertical correction rollers and a large number of horizontal correction rollers. Then, straightening to improve linearity is performed, followed by heat treatment.
Patent Document 2 proposes a straightening device that improves the linearity by placing a coiled wire on a turntable, rotating the turntable to feed the wire, and alternately energizing with a plurality of straightening rollers. ing.

JP 09-31540 A Japanese Patent No. 4900792

However, in the conventional long work processing apparatus, since there is a three-dimensional bent wrinkle in the long work before processing, the shape is difficult to stabilize when processing while supporting the long work. The structure has become larger and more complicated.
For example, in an apparatus such as the above-mentioned Patent Document 1, a long workpiece is pressed and corrected in two axial directions orthogonal to each other using a large number of vertical correction rollers and a large number of horizontal correction rollers.
In such an apparatus, a large number of pinch rollers, a large number of vertical straightening rollers, a large number of horizontal straightening rollers, etc. are arranged and pressed sequentially in the axial direction. Was necessary.

In the straightening device as described in Patent Document 2, the rotary table that supports the long work and the base that supports the plurality of straightening rollers are tilted or swung according to the arc shape of the long work that has been fed out. By doing so, the long work was corrected while sequentially controlling the direction of the correction roller in accordance with the curvature of the long work.
In such an apparatus, the structure is complicated, and labor is required for correction processing.

  Then, an object of this invention is to provide the processing apparatus and processing method of a long workpiece which can process a long workpiece | work which has a bending wrinkle easily with a simple structure.

The long workpiece machining apparatus of the present invention that achieves the above object is a long workpiece machining apparatus for machining a long workpiece while moving the long workpiece in the axial direction of the long workpiece. A pressurizing unit that puts a long workpiece into a pre-processed state having a curved shape in the first fixing direction by pressing in a fixed first fixing direction that intersects with the axis set in advance in the processing apparatus ; A processing unit that processes a long workpiece in a pre-processed state, a payoff unit that sequentially unwinds and feeds out a long workpiece that is provided at a fixed position with respect to the pressing unit, and a payoff unit and a pressing unit, The long work is provided so as to be displaceable in a direction intersecting the axis by the space between, and an introduction part for introducing the long work into the pressurizing part is provided.

In the apparatus for processing a long workpiece according to the present invention, preferably, the pressure unit has a plurality of pressure rollers that form a pressure passage in contact with the long workpiece in the first fixing direction . In this case, it is preferable that a position restricting means for partitioning the pressure passage is provided at a predetermined position in a second fixing direction that is along the rotation axis of the pressure roller and orthogonal to the first fixing direction .

In the processing apparatus for a long workpiece according to the present invention, a correction processing section for improving the linearity of the long workpiece is provided downstream of the pressurizing section, and the correction processing section adds the long workpiece in the first fixing direction. a plurality of straightening rollers for pressurizing, with straightening passages formed by a plurality of straightening rollers are continuous without bending the pressurizing passageway, pressurizing passageway is largely bent in a first fixed direction than straightening passage Is preferred.

The long workpiece processing method of the present invention that achieves the above object is the first fixed invariant that intersects the axis while moving the long workpiece having a bending rod in the axial direction in a displaceable state from the upstream side. In this method, the long workpiece is brought into a pretreatment state having a bent shape in the first fixing direction by pressing in the direction, and thereafter the long workpiece in the pretreatment state is processed.

  According to the processing apparatus and the processing method for a long workpiece of the present invention, a long workpiece having a bending wrinkle is pressed in a constant direction by a pressurizing unit, and is pressed into a constant shape along a constant direction. To do. At that time, it is not necessary to adjust the direction in which the pressurizing unit is sandwiched so as to correspond to the bending wrinkles, and it may be sandwiched in one unchanged direction. Therefore, the bending shape can be easily adjusted with a pressurizing portion having a simple structure.

  If a long workpiece is machined after adjusting it to a curved shape along an invariable direction, there is no need to adjust the machining direction etc. so as to correspond to the bending habit, and it is easy to make a long structure with a simple structure. The workpiece can be processed. Accordingly, it is possible to easily process a long workpiece having a curved wrinkle with a simple structure.

It is a schematic plan view which shows the processing apparatus of the long workpiece | work in 1st Embodiment of this invention. It is a schematic plan view which shows the pressurization part and correction | amendment process part of the processing apparatus in 1st Embodiment of this invention. It is AA sectional drawing of FIG. 2 which shows the pressure roller of the processing apparatus in 1st Embodiment of this invention. It is a schematic plan view which shows the pressurization part and correction | amendment process part of the processing apparatus in 2nd Embodiment of this invention. It is a B arrow line view of Drawing 4 showing the pressure roller of the processing device in a 2nd embodiment of the present invention.

[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings.
[Long work]
The long workpiece W to be processed is a long member in which the cross-sectional shape orthogonal to the axis L1 continues substantially constant over the entire length. The cross-sectional shape is not particularly limited, such as a circular shape, an elliptical shape, a polygonal shape, an annular shape, and an irregular shape. In this embodiment, a long steel material having a circular cross section is processed as the long work W.

  The long workpiece W of this embodiment is used by breaking a bundle wound in a coil shape. Therefore, the long workpiece W in a state before processing has a three-dimensional bending ridge like a gentle spiral shape, and the bending direction and size usually change at each position in the longitudinal direction. The bending wrinkle can be grasped by, for example, bending that occurs when the long workpiece W is brought into a low load state or an unloaded state.

[Processing equipment]
The processing apparatus 10 for the long workpiece W of this embodiment is an apparatus that processes the long workpiece W while moving it in the axial direction Dz. The processing content is not limited, but here is a device that improves the linearity of the long workpiece W and heat-treats it. To improve the linearity of the long workpiece W means to make the axis L1 of the long workpiece W along a straight line.

  The processing apparatus 10 includes a pay-off unit 20 that sequentially unwinds and feeds the wound long workpiece W in a pre-machining state, and an introduction unit that moves the fed long workpiece W in a pre-machining state and introduces it into a processing line. 30, a pressing unit 40 that puts and presses the long workpiece W in a pre-processed state to be in a pre-processed state, and a processing unit 50 that processes the long workpiece W in a pre-processed state. ing.

[Payoff section]
The payoff unit 20 is disposed at a position fixed with respect to the pressurizing unit 40, and includes a mounting unit 21 that is rotatable around the rotation axis L2. In the payoff part 20, the wound long work W is placed on the placing part 21 in a substantially horizontal direction, and the placing part 21 rotates to rotate the long work W in a state before processing from the feeding position on the outer peripheral side. Are solved sequentially.

The disposition position of the payoff unit 20 is preferably a position where an introduction unit 30 as described below is provided between the feeding position of the long workpiece W and the pressurizing unit 40. The feeding position need not be specified and can be selected as appropriate.
The placement unit 21 of the payoff unit 20 may be rotationally driven by a drive mechanism, but here is rotated by its own elasticity of the long workpiece W.

[Introduction section]
The introduction unit 30 is a part that moves the long workpiece W in a pre-processing state fed from the payoff unit 20 and introduces it into the pressurization unit 40 of the processing line. The introduction unit 30 may support and move the long workpiece W mechanically, but in this embodiment, the introduction unit 30 is configured by a space between the payoff unit 20 and the pressure unit 40 without providing a mechanical support unit. Has been.

  It is desirable that the introduction unit 30 can smoothly introduce the long workpiece W in a state before processing into the pressurizing unit 40 and can be moved in a state in which the pressurizing unit 40 can easily pressurize the workpiece. Therefore, it is preferable that the moving long workpiece W in the pre-machining state is displaceable in a direction intersecting the axis L1.

  For example, the tension or the like acting on the long workpiece W between the payoff unit 20 and the pressurizing unit 40 may be suppressed so that the long workpiece W can be elastically deformed in the bending direction, the twisting direction, or the like at this position. More specifically, the shape of the moving long workpiece W in a pre-working state is a curved shape, and preferably a portion of the payoff unit 20 around which the long workpiece W is wound and a pressurizing unit described later. A continuous curved shape with no inflection point is formed between the 40 pressure passages 45. Particularly preferably, the long workpiece W in the pre-machining state with the entire length of the introduction portion 30 is curved with a substantially constant curvature radius.

[Pressure part]
As shown in FIG. 2, the pressurizing unit 40 presses the long workpiece W in a pre-machining state while sandwiching it in an invariable first fixed direction Dx intersecting the axis L <b> 1, thereby bending the long workpiece W. Is adjusted to a pretreatment state having a shape along the first fixing direction Dx.
The invariable first fixed direction Dx is a unidirectional direction set in advance so as to intersect the direction Dz of the axis L1 of the long workpiece W, and is a uniaxial direction that does not vary during the processing of the long workpiece W. . The direction is preferably orthogonal to the axis L1, and here the substantially horizontal direction.
In addition, pressing and pressing means a direction in which one or both of the component in the first fixing direction Dx and the component in the second fixing direction Dy are included by sandwiching the long workpiece W in the direction along the first fixing direction Dx. It is only necessary that the long workpiece W can be pressurized.

  The pressure unit 40 of this embodiment includes a plurality of pressure rollers 41 in contact with the long workpiece W in the first fixed direction Dx, specifically, three pressure rollers 41. The plurality of pressure rollers 41 have rotation axes L3 that are substantially parallel to each other along a second fixing direction Dy that is orthogonal to the first fixing direction Dx, and alternate along the axial direction Dz on both sides via the axis L1. Is arranged.

Each pressure roller 41 is supported by an advance / retreat mechanism 43, and the advance / retreat position can be adjusted in the first fixed direction Dx. Here, each pressure roller 41 is maintained at a fixed position during processing. Further, some or all of the pressure rollers 41 can be driven to rotate by a driving mechanism (not shown).
A pressure passage 45 for allowing the long work W to pass therethrough is formed between the plurality of pressure rollers 41. By appropriately adjusting the position of each pressure roller 41 by the advance / retreat mechanism 43, the shape and width of the pressure passage 45 can be adjusted according to the long workpiece W in the pre-processing state.

  In this embodiment, the pressure roller 41 on the most upstream side is disposed so as to protrude to one side in the first fixing direction Dx from the other pressure rollers 41 and the correction roller 57 described later, thereby pressing the curved shape. A passage 45 is formed so that the outer pressure roller 41 and the inner pressure roller 41 are in contact with the long workpiece W, respectively.

Position regulating means 47 for partitioning the position of the pressure passage 45 in the second fixing direction Dy is provided at a predetermined position in the second fixing direction Dy of the pressure roller 41. The position restricting means 47 only needs to be able to support the long workpiece W passing through the pressurizing passage 45 from both sides in the second fixing direction Dy.
Here, as shown in FIG. 3, the position regulating means 47 is constituted by a groove provided in each pressure roller 41. This groove is provided on all the pressure rollers 41 so that the positions along the second fixing direction Dy are the same, and has a shape corresponding to the cross-sectional shape of the long workpiece W and a part of the long workpiece W. It is formed so that it can be accommodated.

The pressurizing passage 45 is formed in a curved shape, and is formed in a radius of curvature that allows the long workpiece W in a state before processing to be bent along the first fixed direction. Specifically, the curvature radius of the pressurizing passage 45 may be 0.3 to 2.0 times the curvature radius of the curved shape in the three-dimensional curved scissors in the state before processing.
When the radius of curvature of the pressure passage 45 is 1 or more, it is desirable to provide the position restricting means 47 at an intermediate position of the pressure passage 45, and to provide a groove on all the pressure rollers 41 as in this embodiment. It may be realized.

  If the radius of curvature of the pressurizing passage 45 is excessively large, it becomes difficult to form a curved shape along the first fixed direction Dx when the long work W is pressed, and if the radius of curvature is excessively small. Since the applied pressure becomes excessively large, a strong bending wrinkle remains on the long workpiece W in the preprocessed state, and the labor of processing in the processing unit 50 increases.

  In such a pressure unit 40, a long workpiece W in a state before processing is sandwiched in the first fixing direction Dx by the pressure rollers 41 and pressed to form a bent shape along the first fixing direction Dx. The long workpiece W in a pre-machining state having a three-dimensional curved surface may be aligned so as to reduce the component in the second fixing direction Dy, and the long workpiece W is elastically deformed in the bending direction or the twist direction. Or may be plastically deformed to change the direction, or the bending curvature in the first fixed direction Dx may be increased or newly added.

In the long workpiece W in the preprocessed state obtained by the pressurizing unit 40, the bent shape in the first fixed direction Dx may be the same or different as compared to the long workpiece W in the pre-processed state. It is necessary that the bent shape with respect to the second fixing direction Dy is reduced. In particular, it is preferable to have a two-dimensional bent shape in which only a bent shape in the first fixed direction Dx exists and no bent shape in the second fixed direction Dy exists.
The bent shape in the pretreatment state may be a shape obtained by elastically deforming the long workpiece W obtained in a state where it is supported by the pressure roller 41, or may be a shape obtained by plastic deformation.

[process section]
In this embodiment, the processing unit 50 is provided on the downstream side of the correction processing unit 51 and the correction processing unit 51 provided downstream of the pressurization unit 40 in order to improve the linearity of the long workpiece W in the preprocessed state. And a heat treatment processing part 53 for heating and cooling the long workpiece W.

  The straightening section 51 has a plurality of straightening rollers 57 that press against the long workpiece W in the first fixed direction Dx. The correction passage 55 formed by the plurality of correction rollers 57 is provided continuously without a bent portion on the downstream side of the pressure passage 45. Here, the pressurization passage 45 is curved larger than the correction passage 55 and the pressurization unit 40 and the correction processing unit 51 are integrated, thereby improving the linearity of the axis L1 of the long workpiece W in the pre-processing state. It constitutes a straightening device.

  In the straightening portion 51, each of the plurality of straightening rollers 57 has a rotation axis L4 along a second fixing direction Dy orthogonal to the first fixing direction Dx, and alternates along the axial direction Dz on both sides via the axis L1. Is arranged. The rotation axes L4 of the correction rollers 57 are provided substantially parallel to each other and substantially parallel to the rotation axis L3 of each pressure roller 41.

Each correction roller 57 is supported by the advance / retreat mechanism 43, and the advance / retreat position can be adjusted in the first fixed direction Dx. Further, some or all of the correction rollers 57 can be driven to rotate by a driving mechanism (not shown).
The correction passage 55 formed between the plurality of correction rollers 57 is adjusted according to the length of the pre-processed long workpiece W by appropriately adjusting the position of each correction roller 57 by the advance / retreat mechanism 43. it can.
In the correction passage 45, it is desirable to provide a position restricting means in the same manner as the position restricting means 47 of the pressurizing passage 45. Here, a groove is provided in each correction roller 57 so that the position in the second fixing direction Dy is the same as the groove of the pressure roller 41, but detailed illustration is omitted.

  In this embodiment, a correction passage 55 is formed by six correction rollers 57 disposed on the downstream side from a position adjacent to the pressure roller 41. The straightening path 55 has a shape meandering slightly for each straightening roller 57 by arranging the straightening rollers 57 so as to slightly protrude from both sides of the pre-processed long workpiece W alternately.

  In such a straightening processing section 51, the long workpieces W in the pretreatment state pass through the straightening passage 55, so that each straightening roller 57 alternately presses the long workpieces W in the first fixed direction Dx, and the pretreatment is performed. The linearity of the long workpiece W in the state is improved. At this time, since the long workpiece W in the pre-processed state is bent along the first fixing direction Dx, the straight traveling performance can be improved efficiently by applying pressure in the first fixing direction Dx.

  The heat treatment processing unit 53 performs surface treatment while continuously moving the long workpiece W with improved linearity in the axial direction Dz, raises the temperature to a predetermined heat treatment temperature by electric heating or induction heating, and then rapidly cools or It is configured to perform heat treatment by slow cooling.

[Processing method]
Next, a method for processing the long workpiece W using the processing apparatus 10 having such a configuration will be described.
In this processing apparatus 10, as shown in FIG. 1, a long workpiece W having a three-dimensional curved surface is sequentially fed from the payoff unit 20, and the long workpiece W in a state before processing intersects the axis L <b> 1 at the introduction unit 30. It is moved in a curved shape that is displaceable in the direction to be introduced and introduced into the pressure unit 40.

In the pressure unit 40, the long workpiece W in the pre-processing state is moved in the axial direction Dz, and is passed through the curved pressure passage 45 formed by the plurality of pressure rollers 41. The long workpiece W is sandwiched and pressed in an invariable first fixed direction Dx intersecting the axis L1.
At this time, the long workpiece W is supported on the upstream side by the payoff unit 20 and is supported on the downstream side by the correction roller 57 of the processing unit 50. In this state, when the long workpiece W is sandwiched by the plurality of pressure rollers 41 in the first fixed direction Dx, which is unchanged, the long workpiece W having a three-dimensional curved surface is aligned in a direction along the curved pressure passage 45. Pressurized. Thereby, the long workpiece W is brought into a pretreatment state having a curved shape along the first fixed direction Dx.

In the processing unit 50, the long workpiece W in the pre-processed state is continuously supplied to the correction processing unit 51, and is passed through a slight meander-shaped correction passage 55 formed by a plurality of correction rollers 57. The long workpiece W in the pretreated state is pressurized in the first fixed direction Dx intersecting the axis L1. Thereby, the linearity of the long workpiece W is improved.
Thereafter, the long workpiece W with improved linearity is heat-treated in the heat treatment portion 53 to finish the processing.

[Function and effect]
When the long workpiece W is processed by the processing apparatus 10 as described above, the pressurizing unit 40 pressurizes the long workpiece W having a three-dimensional curved wrinkle in an invariable first fixing direction Dx. In order to obtain a pretreatment state having a curved shape along one fixed direction Dx, it is not necessary to operate the pressing portion 40 so as to correspond to a three-dimensional curved ridge or to adjust the sandwiching direction. Therefore, it is possible to easily adjust the bending shape with the pressurizing unit 40 having a simple structure and to put the long workpiece W in a pre-processed state into a pre-processed state.

  In the processing unit 50, the long work W is adjusted to a curved shape along the first fixed direction Dx and then processed, so that the processing unit 50 is operated so as to correspond to a three-dimensional curved surface and the processing direction is adjusted. The long workpiece W can be easily machined by the machining unit 50 having a simple structure.

  According to the processing apparatus 10, the introduction unit 30 is provided between the payoff unit 20 and the pressurizing unit 40, so that the long workpiece W in a state before processing moves in a displaceable manner in a direction intersecting the axis L <b> 1. Therefore, the long workpiece W in the pre-processing state can be smoothly introduced into the pressurizing unit 40, and the long workpiece W in the pre-processing state having a three-dimensional curved surface is displaced or deformed on the upstream side of the pressurizing unit 40. Can be. Therefore, the bending part of the long workpiece W can be easily along the first fixing direction Dx which is unchanged by the pressurizing unit 40, and the pretreatment state having the bending shape along the first fixing direction Dx can be easily achieved.

According to the processing apparatus 10, the pressing unit 40 includes the plurality of pressing rollers 41 that form the pressing passage 45 in contact with the long workpiece W in the first fixing direction Dx. The long workpiece W in a state can be made smooth to be bent along the first fixed direction Dx.
At that time, if the pressurizing passage 45 has a smaller radius of curvature than the curved shape of the three-dimensional curved scissors in the pre-machining state, the long workpiece W passes through the pressurizing passage 45 and thus the first fixing direction. Dx can be reliably pressurized and the long workpiece W can be easily put into a pre-processed state.

  According to this processing apparatus 10, since the position restricting means 47 that divides the pressure passage 45 is provided at a predetermined position in the direction along the rotation axis L3 of the pressure roller 41, the pre-processing state having a three-dimensional curved surface. Can be reliably prevented from coming off from the pressurizing passage 45.

According to this processing apparatus 10, the correction processing unit 51 has the plurality of correction rollers 57 that press the long workpiece W in the first fixing direction Dx, and pressurizes with the correction passage 55 formed by the correction rollers 57. A passage 45 is provided continuously without a bent portion.
Therefore, the apparatus for improving the linearity of the long workpiece W in the pre-machining state can be configured by a large number of rollers 45 and 55 in contact with the long workpiece W in the first fixed direction Dx. Therefore, there is no need to provide a mechanism for pressurizing or a complicated operation mechanism. Thereby, the apparatus which improves linearity can be made into a simple structure.

[Second Embodiment]
4 and 5 show the pressing unit 40 and the straightening unit 51 used in the processing apparatus 10 for the long workpiece W in the second embodiment.
In the pressure unit 40 and the correction processing unit 51, the position regulating means 47 is constituted by a contact member disposed in the vicinity of the pressure roller. This abutting member slides the long workpiece W in a state before processing and always guides it to a predetermined position in the direction along the rotation axis L4 of the pressure roller 41. The abutting member may be a member that does not cause displacement or deformation even when the long workpiece W slides or abuts. Here, the abutting member is disposed so as to sandwich the long workpiece W from both sides in the second fixing direction Dy. It is formed of a bar or plate.
Other points are the same as in the first embodiment.

  Even in such a second embodiment, the same operational effects as in the first embodiment can be obtained. In particular, in the processing apparatus of this embodiment, since it is not necessary to provide a groove in each of the plurality of pressure rollers 41 and the plurality of correction rollers 57, it is easy to produce the pressure roller 41 and the correction roller 57. Easy to manufacture.

The first and second embodiments can be appropriately changed within the scope of the present invention.
For example, in the above description, an example in which the three pressure rollers 41 are provided as the pressure unit 40 and the pressure passage 45 is formed in a curved shape continuous with the correction passage 55 has been described. Any shape that can pressurize the work W in the first fixing direction Dx may be used. For example, four or more pressure rollers 41 may be used, and the entire curved or linear pressure passage 45 may be arranged on one side of the first fixing direction Dx with respect to the correction passage 55.
In the above, in order to move the long workpiece W in the axial direction Dz, the pressure roller 41 and the correction roller 57 are driven. However, apart from these rollers 45 and 55, a pinch roller is provided to drive the long roller W. The workpiece W may be moved.
In the above description, the long workpiece W having the three-dimensional curved surface is processed in the state before processing. However, even if the long workpiece W has the two-dimensional curved surface in the state before processing, It is naturally possible to perform processing by the processing apparatus and processing method of the invention.

  A steel material having a circular cross section and a diameter of 12.7 mm is wound, and a long workpiece W having a maximum diameter of 1600 mm, a minimum diameter of 1000 mm, and a thickness of 980 mm in the winding axis direction is processed into a processing apparatus 10 as shown in FIGS. Are used, and the positional relationship between the payoff unit 20 and the pressurizing unit 40 and the amount of pressurization of the pressurizing unit 40 are variously changed. Bending was measured. The results are shown in Table 1.

  The positional relationship between the payoff unit 20 and the pressurizing unit 40 was set as follows. Here, the line axis center line LL that is the axial direction Dz in the processing section 40 is used as a reference, and the relationship is set between the rotation axis L2 of the payoff section 20 and the most upstream position of the pressure passage 45.

A: The distance between the rotation axis L2 of the payoff unit 20 and the pressure unit 40 in the direction of the line axis LL is 2000 mm, and the distance in the direction orthogonal to the line axis LL is 1200 mm.
B: The distance between the rotation axis L2 of the payoff unit 20 and the pressure unit 40 in the line axis LL direction was 0 mm, and the distance in the direction orthogonal to the line axis LL was 1500 mm.
C: The distance between the rotation axis L2 of the payoff unit 20 and the pressure unit 40 in the line axis LL direction was 4500 mm, and the distance in the direction orthogonal to the line axis LL was 1500 mm.

  The pressurizing amount of the pressurizing unit 40 includes the pressing amount of the most upstream pressure roller 41 in the direction orthogonal to the line axis LL and the pressurizing roller 41 adjacent to the most upstream pressure roller 41 on the same side. The amount of pressing in the direction perpendicular to the line axis LL of the line was adjusted by adjusting.

  For the bending of the long workpiece W, a 1 m metal ruler was applied to the inside, and the maximum gaps in the bow warp shape were measured at a number of positions.

  As is clear from the results in Table 1, the pre-processed state is achieved by pressing a long workpiece W having a three-dimensional curved surface in a first fixing direction Dx intersecting the axis L1 by the pressurizing unit 40. Then, it is possible to sufficiently improve the straightness of the long workpiece W by pressing and correcting in the first fixing direction Dx by the correction processing unit 51.

W Long work L1 Axis line L2 Rotation axis L3 of payoff part Rotation axis L4 of pressure roller Rotation axis LL of correction roller Line axis center line Dx First fixed direction Dy Second fixed direction Dz Axial direction 10 Processing device 20 Payoff part 21 Placement part 30 Introduction part 40 Pressure part 41 Pressure roller 43 Advance / retreat mechanism 45 Pressure passage 47 Position restricting means 50 Processing part 51 Correction processing part 53 Heat treatment processing part 55 Correction path 57 Correction roller

Claims (5)

A long work processing apparatus for processing a long work while moving the long work in the axial direction of the long work,
By pressing the long workpiece having the curved wrinkles in an invariable first fixing direction preset in the processing device so as to intersect the axis, the long workpiece is fixed to the first A curved-shaped pressurizing part to be in a pretreatment state having a curved shape in a direction ;
A processing section for processing the long workpiece in the pre-processed state;
A payoff unit that sequentially unwinds and feeds out the long work wound at the fixed position with respect to the pressurizing unit;
An introduction part for introducing the long work into the pressurization part, the long work being provided in a direction that intersects the axis by a space between the payoff part and the pressurization part;
A machine for processing long workpieces. 2. The long work processing apparatus according to claim 1 , wherein the pressure unit includes a plurality of pressure rollers that form pressure passages in contact with the long work in the first fixing direction. A predetermined position in the second fixing direction perpendicular to the first fixed direction to a direction along the rotation axis of the pressure roller, and a position regulating means for partitioning the pressurizing passageway, according to claim 2 Machine for long workpieces. A correction processing part for improving the linearity of the long workpiece downstream of the pressurizing part,
The straightening portion has a plurality of straightening rollers that press the long workpiece in the first fixing direction,
With straightening passage formed by the correction roller of said plurality of consecutive without bending and the pressurizing passageway, the pressurizing passageway is curved greatly to the first fixed direction than the straightening passage, claim 2 Or the processing apparatus of the long workpiece | work of 3 . A long workpiece having a bending rod is moved in the axial direction of the long workpiece in a displaceable state and sandwiched in an invariable first fixed direction that is preset so as to intersect the axial line to be curved. By applying pressure, the long workpiece is brought into a pretreatment state having a bent shape in the first fixing direction ,
Then, the long work processing method of processing the long work of the pre-processing state.

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