JP2009131886A - Wire material straightening apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire material straightening apparatus which is compact and can easily ensure an installation space, and can straighten a wire material into a straight shape by unfailingly removing the bending of the wire material. <P>SOLUTION: A first straightening mechanism 4 is provided above and below a wire material 2 travelling in a horizontal direction, and has the same number of straightening means 40A, 40B consisting of a group of a plurality of rollers 40 disposed in a zigzag manner along the travelling direction of the wire material 2 as the number of the wire materials 2, and the straightening means 40A, 40B are disposed such that the adjacent straightening means can be deviated in the axial direction of the rollers 40. A second straightening mechanism 6 is provided on the side of the wire material 2 travelling in a horizontal direction, and has one straightening means 60A consisting of a group of rollers 60 disposed in a zigzag manner along the travelling direction of the wire material 2. The entering angle at which each of the wire materials 2 enters the straightening means 60A is adjusted by a guiding mechanism 5 for guiding the wire materials 2 having passed through the first straightening mechanism 4 to the second straightening mechanism 6. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a wire straightening device that removes bending of a plurality of wires wound in a coil shape and straightens them.

In general, the wire wound around a drum or the like has a “bend” such as a curl so that the wire unrolled from the drum or the like is straightened by a wire straightening device before use. The bend is removed.
In this type of wire straightening device, since only one direction of bending of the wire can be corrected with one straightening mechanism, it has bending in a plurality of directions (for example, a horizontal direction and a vertical direction perpendicular to the length direction of the wire). In order to correct the existing wire, a large wire straightening device having a plurality of straightening mechanisms is required. Such a large wire straightening device has a problem that it is difficult to secure an installation space because the weight is considerably heavy.

  In Patent Document 1, as a wire straightening device capable of correcting a plurality of wire rods at once, a vertical straightening device that removes longitudinal curl of the wire and a horizontal strip that removes lateral curl of the wire. A wire straightening device having a plurality of horizontal straightening mechanisms, and the adjacent horizontal straightening mechanisms being shifted from each other in the length direction of the wire. Is described. According to the wire straightening device described in Patent Document 1, it is possible to prevent a plurality of lateral correction mechanisms from interfering with each other, and as a result, it is possible to narrow the interval between the wires supplied to the device, It is said that the accuracy of processing (cutting, molding, etc.) of the wire after correction is increased.

However, since the wire straightening device described in Patent Document 1 has the same number of the above-described horizontal correction mechanisms for removing the horizontal curling wrinkles with respect to one wire as the plurality of wire rods, There is a problem that it is insufficient in terms of downsizing and weight reduction, and the installation location is likely to be limited.
In general, a roller that is a constituent member of this type of straightening mechanism preferably has a large diameter from the viewpoint of straightening force of the wire and stability of the wire after straightening. In the wire straightening device described in Patent Document 1, If the diameter of a plurality of rollers that are constituent members of the lateral correction mechanism is made larger than the distance between the wires supplied to the apparatus, the rollers interfere with each other. It could not be used and was insufficient in terms of the straightening effect of the wire.

Japanese Patent Laid-Open No. 9-225568

  Accordingly, an object of the present invention is to provide a wire straightening device that is compact and easy to secure an installation space, and can be straightened by reliably removing the bending of the wire.

  The present invention is a wire straightening device that corrects the bending of a plurality of wires drawn from a plurality of reels to form a straight line, and is provided above and below the wire running in the horizontal direction and in the running direction of the wire. A plurality of rollers arranged in a staggered manner along the same number as the plurality of wire rods, and the plurality of correction devices are adjacent to each other in the axial direction of the rollers. A first correcting mechanism arranged in a shifted manner, and a correcting means comprising a group of rollers provided on the side of the wire that runs in the horizontal direction and arranged in a zigzag manner along the running direction of the wire. A second correction mechanism that has one, and a guide mechanism that guides the plurality of wires that have passed through the first correction mechanism to the correction means of the second correction mechanism, and the guide mechanism allows the plurality Each wire rod By entering angle to correcting means of the second correction mechanism to provide a wire straightening device to be adjusted in the same, in which to achieve the above object.

  The wire straightening device of the present invention is smaller and lighter than conventional wire straightening devices and is compact, so it can be installed in limited spaces that could not be installed with conventional wire straightening devices It is excellent in the straightening power of the wire, and can be straightened by reliably removing the bending of the wire.

Hereinafter, the present invention will be described based on preferred embodiments with reference to the drawings.
As shown in FIGS. 1 and 2, the wire straightening device 10 of the present embodiment corrects the bending of a plurality (two in the drawing) of the wires 2 drawn from a plurality (two in the drawing) of the reels 1. The first straightening mechanism 4 that corrects the bending of the wire 2 in the longitudinal direction (vertical direction of the wire traveling in the horizontal direction) and the lateral direction of the wire 2 (horizontal direction of the wire traveling in the horizontal direction) ) And a guide mechanism 5 that guides the plurality of wires 2 that have passed through the first correction mechanism 4 to the second correction mechanism 6.

  As shown in FIG. 3, the wire 2 has a rhombus shape in a cross-sectional view, and includes a core material 20 and a coating layer 21 that covers the peripheral surface of the core material 20. The core material 20 is a metal wire such as iron having a circular shape in a sectional view. Examples of the material for forming the coating layer 21 include vinyl chloride, polypropylene, polyethylene, polyethylene terephthalate, and the like. The wire applicable to the wire straightening device of the present invention is not limited to a flat wire having a ratio of width a to thickness b (a / b) other than 1, as shown in FIG. 1 is also included, for example, a wire having a circular shape or a square shape in a sectional view. The ratio (a / b) between the width a and the thickness b in the flat wire applied to the wire straightening device of the present invention is usually about 1 to 3.

As shown in FIGS. 1 and 2, the first correction mechanism 4 is provided above and below the wire 2 that travels in the horizontal direction (the left-right direction in FIGS. 1 and 2), and along the travel direction of the wire 2. The straightening means 40A, 40B composed of a group of rollers 40 arranged in a staggered manner is provided in the same number (two in the figure) as the plurality of wire rods 2. Therefore, when there are N wires, the first correction mechanism has N correction means.
More specifically, the first correction mechanism 4 includes a support plate 41 disposed on the base 11 of the apparatus 10 so as to be orthogonal to the base 11, and a plurality ( The figure includes 10 rollers 40, and the plurality of correction means (roller groups) 40 </ b> A and 40 </ b> B are configured by the plurality of rollers 40. In FIG. 2, for the sake of convenience, the end face of the roller 40 constituting the correction means 40A is hatched, and the roller 40 constituting the correction means 40B is not hatched. The number of rollers 40 constituting each correction means 40A, 40B is the same number (five in the figure), and a plurality of rollers 40 constituting each correction means 40A, 40B are arranged in a staggered manner on one side of the support plate 41, In other words, the wires 2 are alternately arranged in the vertical direction so as to be positioned above and below the wire 2 with a predetermined interval in the running direction of the wire 2. As shown in FIGS. 2 and 4, the plurality of correction means 40 </ b> A and 40 </ b> B are arranged with their positions shifted in the vertical direction of the traveling wire 2.

As shown in FIG. 4, one circumferential groove 45 into which the wire 2 can be fitted is formed on the circumferential surface (outer circumferential surface) of each of the plurality of rollers 40. The groove wall of the circumferential groove 45 serves as a contact portion with the wire 2. The cross-sectional shape of the circumferential groove 45 only needs to be a shape into which the wire 2 can be inserted, and is usually a triangular shape, a rectangular shape, a semi-elliptical shape, a semi-circular shape, a semi-oval shape, or the like.
Moreover, it is preferable that the depth of the circumferential groove 45 is larger than 1/2 of the height of the wire 2 from a viewpoint of preventing derailment from the circumferential groove 45 (roller 40) of the wire 2. Here, the height of the wire means the vertical length of the wire traveling in the horizontal direction. For example, when a wire rod having a width a of 2.9 mm and a thickness b of 1.3 mm shown in FIG. 3 is run in the horizontal direction so that the width a is in the vertical direction, the circumferential groove 45 has a depth of 1. If it is 5 mm or more, it is confirmed that the wire does not derail from the circumferential groove 45.

  The plurality of rollers 40 constituting each of the correcting means 40A and 40B includes two types of rollers, a fixed roller 40a fixed to the support plate 41 and a movable roller 40b arranged to be movable in the vertical direction of the traveling wire 2. There is a roller. Both rollers 40a and 40b are rotatably supported by a roller shaft 42 protruding from the support plate 41.

  The plurality of rollers 40 constituting each correction means 40A, 40B is such that one or more (one in the figure) movable rollers 40b are located between the two fixed rollers 40a, 40a in the traveling direction of the wire 2. Is arranged. The movable roller 40b protrudes from a long hole (not shown) provided on the support plate 41 and extending in the vertical direction of the traveling wire 2 (in the direction perpendicular to the paper surface in FIG. 1 and in the vertical direction in FIG. 2). The roller shaft 42 is rotatably supported. The roller shaft 42 of the movable roller 40b is movable in the elongated hole by a movement adjusting mechanism (not shown), and the movable roller 40b is moved in the vertical direction of the wire 2 by moving the roller shaft 42. Can be made.

In the present embodiment, as shown in FIGS. 1 and 4, the plurality of correction means 40A and 40B in the first correction mechanism 4 are arranged such that the adjacent correction means 40A and 40B are in the axial direction of the roller 40 (the roller shaft 42). They are shifted in the longitudinal direction, the vertical direction in FIG. 1, and the direction perpendicular to the paper surface in FIG. Accordingly, in the first correction mechanism 4, as shown in FIG. 2, the plurality of wires 2 travel in parallel at a predetermined interval in the axial direction of the roller 40.
As described above, since the adjacent correction means (roller groups) 40A and 40B are arranged to be shifted in the axial direction of the roller 40, a roller having a larger diameter can be used in a limited space, and the correction effect. Is further improved.
From the viewpoint of achieving such an effect more reliably, as shown in FIGS. 1 and 4, the adjacent correction means 40 </ b> A and 40 </ b> B are arranged so that the circumferential surfaces of the rollers 40 do not face each other. Is preferred.

  On the other hand, in FIG. 5, the adjacent correction means 40A and 40B are not arranged so as to be shifted in the axial direction of the roller 40, the two match, and the circumferential surfaces of the rollers 40 face each other. It shows the state. The arrangement of the correcting means shown in FIG. 5 is not adopted in the present invention because the adjacent correcting means 40A and 40B may interfere with each other depending on the setting of the diameter or the like of the roller 40.

In the first straightening mechanism 4 having such a configuration, the bending correction of the wire 2 is performed by supporting the wire 2 during traveling with two fixed rollers 40a and 40a at two points, and a movable roller 40b positioned at the middle point. This is done by applying a straightening load for bending, and generating the total amount of elastic / plastic deformation in the opposite direction to the bending, more precisely with respect to the bending amount. Thereby, the bending in the up-down direction of the running wire 2 is corrected.
Such bending correction processing of the wire 2 is performed by each of the plurality of movable rollers 40b. Therefore, the same number of times of bending correction processing as the plurality of movable rollers 40b is performed on one wire 2. . The correction degree of the wire 2 can be performed by adjusting the moving amount of the movable roller 40b and the diameter, pitch, number, and the like of all the rollers 40 constituting each of the plurality of correction means 40A and 40B. Further, by adjusting the tension of the wire 2, a further good correction degree of the wire 2 can be obtained.

As shown in FIGS. 1 and 2, the second straightening mechanism 6 is provided on the side of the wire 2 that travels in the horizontal direction (the left-right direction in FIGS. 1 and 2) and extends along the travel direction of the wire 2. One correction means 60A composed of a group of rollers 60 arranged in a zigzag manner is provided.
More specifically, the second correction mechanism 6 includes a plurality of (five in the figure) rollers 60 disposed on the base 11 of the apparatus 10, and includes one correction means (roller group). ) 60A is constituted by the plurality of rollers 60. The plurality of rollers 60 constituting the correcting means 60A are arranged in a staggered manner on the base 11, that is, left and right so as to be positioned at a predetermined interval in the traveling direction of the wire 2 and to the side (left and right) of the wire 2 They are arranged alternately.

  The plurality of rollers 60 constituting the second straightening mechanism 6 include two types of rollers: a fixed roller 60a fixed to the base 11 and a movable roller 60b arranged to be movable in a predetermined direction. Both of the rollers 60a and 60b are rotatably supported by a roller shaft 62 protruding from the base 11.

  As shown in FIG. 2, a circumferential groove 65 into which the wire 2 can be fitted is formed on the circumferential surface of each of the plurality of rollers 60 constituting the second straightening mechanism 6 in the axial direction of the roller 60 (the roller shaft 62. A plurality (two in FIG. 2) are formed at a predetermined interval in the longitudinal direction, the direction perpendicular to the paper surface in FIG. 1 and the vertical direction in FIG. The circumferential groove 65 is formed in the same manner as the circumferential groove 45 formed in the roller 40 constituting the first correction mechanism 4.

The plurality of rollers 60 constituting the correction means 60A in the second correction mechanism 6 includes one or more (one in the figure) movable rollers 60b between the two fixed rollers 60a and 60a in the traveling direction of the wire 2. It is arranged to be located. The movable roller 60b is a roller provided on the base 11 and protruding from a long hole (not shown) extending in the left-right direction of the wire 2 (vertical direction in FIG. 1 and perpendicular to the paper surface in FIG. 2). The shaft 62 is rotatably supported. The roller shaft 62 of the movable roller 60b is movable in the elongated hole by a movement adjusting mechanism (not shown), and the movable roller 60b is moved in the left-right direction of the wire 2 by moving the roller shaft 62. Can be made.
In the second straightening mechanism 6 having such a configuration, the straightening of the wire 2 is performed in the same manner as the first straightening mechanism 4 described above, thereby correcting the rightward / leftward bending of the wire 2 during traveling.

As described above, the wire straightening device 10 of the present embodiment includes the first straightening mechanism 4 that corrects the bending in the vertical direction with respect to the traveling direction (horizontal direction) of the traveling wire 2, and the traveling wire 2. A second correction mechanism 6 that corrects the bending in the left-right direction (side) with respect to the traveling direction (horizontal direction), and has an independent correction means for each of these two directions. A stable straightening process can be performed even for a wire having a large property.
In addition, since the number of correction means provided in the second correction mechanism 6 is one and the structure is relatively simple, the apparatus 10 can be made compact, and an installation space can be easily secured.

  In the present embodiment, as described above, the number of rollers 40 and 60 constituting each of the correction means 40A, 40B, and 60A is five. If the number of rollers constituting the correcting means is seven or more, the apparatus may be increased in size and it may be difficult to secure an installation space for the apparatus. If the number of rollers constituting the straightening means is three, it is difficult to adjust the straightening degree, and the bending of the wire 2 may not be straightened. Generally, a wire wound on a reel or the like has a different amount of distortion between a part drawn out at the first part and a part drawn out at the last part. Therefore, it is necessary to appropriately change the correction degree in straightening the wire. However, if the number of rollers constituting the correction means is three, which is the minimum required number, it is difficult to change the correction degree and correction is difficult.

The guide mechanism 5 is for guiding the plurality of wires 2 that have passed through the first correction mechanism 4 to the correction means 60 </ b> A of the second correction mechanism 6, and is arranged between the first correction mechanism 4 and the second correction mechanism 6. Has been.
The guide mechanism 5 in this embodiment has the same number (two in the drawing) of guide rollers 50 as the plurality of correction means 40A, 40B of the first correction mechanism 4, and the guide roller 50, the second correction mechanism 6, and the like. In between, there is one approach angle adjusting roller 51. Each of the guide roller 50 and the approach angle adjusting roller 51 is rotatably supported by a roller shaft 52 protruding from the base 11.

  The guide roller 50 is disposed so as to individually correspond to each of the plurality of correction means 40A and 40B of the first correction mechanism 4, and the wire 2 can be inserted into the circumferential surface thereof as shown in FIG. The same number of circumferential grooves 55 as the wire rods 2 passing through the correction means 40A and 40B, that is, one is provided.

  The approach angle adjustment roller 51 is for making contact with all the wire rods 2 that have passed through the first straightening mechanism 4 and adjusting the approach angle of each wire rod 2 to the straightening means 60A. For this purpose, as shown in FIG. 2, a circumferential groove 55 into which the wire rod 2 can be fitted is provided on the circumferential surface of the approach angle adjusting roller 51, in the axial direction of the roller 51 (the longitudinal direction of the roller shaft 52, In FIG. 1, the same number (two in the figure) as the plurality of wire rods 2 that have passed through the first correction mechanism 4 are provided at a predetermined interval in a direction perpendicular to the paper surface and in a vertical direction in FIG. 2. The circumferential groove 55 is formed in the same manner as the circumferential groove 45 formed in the roller 40 constituting the first correction mechanism 4.

In the guide mechanism 5 having such a configuration, the plurality of wires 2 that have passed through the first correction mechanism 4 are guided to the approach angle adjusting roller 51 by the guide rollers 50 as shown in FIG. Are substantially simultaneously contacted with each other and guided to the correction means 60A of the second correction mechanism 6 along one tangential direction of the approach angle adjusting roller 51. As a result, the approach angle θ of each of the plurality of wires 2 to the correction means 60A [the travel direction of the wire 2 in the second correction mechanism 6 (correction means 60A) (the left-right direction in FIG. 6) and the second correction mechanism 6 The angle formed by the wire 2 immediately before entering is the same.
The approach angle θ is desirably 90 ° or less from the viewpoint of simplifying the travel path of the wire and preventing unnecessary strain on the wire. If the arrangement of the approach angle adjusting roller 51 and the roller 60 constituting the correction means 60A is as shown in FIG. 7, the approach angle θ can be set to 0 degree.

  As described above, when the approach angles θ of the plurality of wires 2 to the straightening means 60A of the second straightening mechanism 6 are adjusted to be the same, the approach angles θ of the plurality of wires 2 are different (see FIG. 8). In comparison, since the distortion generated in each of the plurality of wire rods 2 when traveling from the first correction mechanism 4 toward the second correction mechanism 6 can be substantially reduced, one correction is performed in the second correction mechanism 6. By means 60A, correction processing under the same conditions can be performed on the plurality of wires 2. Therefore, the configuration of the second correction mechanism 6 can be simplified, and the apparatus 10 can be made compact. Further, uniform and stable linearity can be obtained for each of the plurality of wires 2.

  On the other hand, as shown in FIG. 8, when the approach angle adjusting roller 51 does not exist and the plurality of wire rods 2 have different approach angles θ1 and θ2, when entering the second correction mechanism 6, Since a difference appears in the distortion generated in the wire 2, a difference also occurs in the bending degree of each wire 2. For this reason, in the 2nd correction mechanism 6, it becomes necessary to carry out the correction process from which conditions differ separately with respect to the some wire 2. FIG. Therefore, when the plurality of wire rods 2 have different approach angles θ1, θ2, the distance between the first correction mechanism 4 and the second correction mechanism 6 is set to make θ1, θ2 as 0 ° as possible. Even in the second straightening mechanism 6, as in the first straightening mechanism 4, the same number of straightening means as the plurality of wire rods 2 are required, and the apparatus 10 cannot be made compact.

  In the present embodiment, a guide block 3 for determining the entry position of each of the plurality of wire rods 2 into the first correction mechanism 4 is disposed in the front stage of the first correction mechanism 4. The guide block 3 has the same number of through holes as the plurality of wire rods 2, and each through hole communicates with each correction means 40 </ b> A, 40 </ b> B of the first correction mechanism 4.

  In addition, a pair of clamp blocks 7, 7 that can move in the traveling direction (left and right in FIGS. 1 and 2) in a state where the plurality of wires 2 are gripped are disposed at the subsequent stage of the second correction mechanism 6. By moving the pair of clamp blocks 7 and 7 by a predetermined distance in the running direction by a driving mechanism (not shown) while the plurality of wire rods 2 are sandwiched between the pair of clamp blocks 7 and 7, the reels 1 are separated from each other. The wire 2 is drawn out. After moving a predetermined distance, the pinching of the wire 2 by the pair of clamp blocks 7 and 7 is released, and the pair of clamp blocks 7 and 7 is retracted to return to the initial position. By repeating such an operation, the wire 2 is pulled out from the reel 1 and conveyed.

  In the wire straightening device 10 of the present embodiment having the above-described configuration, the plurality of wire 2 drawn out from the reel 1 by the pair of clamp blocks 7 and 7 passes through the guide block 3 and passes to the first straightening mechanism 4. Thus, the bending in the vertical direction is individually corrected by the correcting means 40A and 40B arranged corresponding to each wire 2. The plurality of wires 2 that have passed through the first correction mechanism 4 and have been subjected to the vertical correction process have the guide mechanism 5 adjusted the entrance angle to the second correction mechanism 6 to be the same by the approach angle adjustment roller 51. Thereafter, the correction means 60A of the second correction mechanism 6 is entered. 60 A of correction means correct | amend the bending of the left-right direction (side) of each of several wire 2 collectively. In this way, the bending in both the vertical direction and the horizontal direction is removed, and a plurality of wire rods 2 straightened are obtained. The straightened wire 2 is used after being cut into a fixed size by a cutter (not shown) as appropriate.

As mentioned above, although this invention was demonstrated based on the preferable embodiment, this invention is not restrict | limited to embodiment mentioned above.
For example, the number of the wires 2 and the number of rollers constituting the correction means 40A, 40B, 60A can be set as appropriate.
Moreover, the wire straightening device of the present invention can be used for various applications, for example, as a device for inserting a wire into a container made by gusset folding.

FIG. 1 is a top view schematically showing an embodiment of the wire straightening device of the present invention. FIG. 2 is a side view schematically showing an embodiment of the wire straightening device of the present invention. 3 is a perspective view showing an example of a wire used in the wire straightening device shown in FIG. FIG. 4 is an enlarged side view of a part of the roller of the first correction mechanism shown in FIG. FIG. 5 is a view corresponding to FIG. 4 showing the arrangement of the correction mechanisms outside the scope of the present invention. FIG. 6 is a top view schematically showing the guide mechanism of the wire straightening device shown in FIG. 1 and its periphery. FIG. 7 is a view corresponding to FIG. 6 schematically showing a guide mechanism and its periphery according to another embodiment of the present invention. FIG. 8 is a view corresponding to FIG. 6 showing the form of the guide mechanism outside the scope of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Reel 2 Wire material 3 Guide block 4 1st correction mechanism 5 Guide mechanism 6 2nd correction mechanism 7 Clamp block 10 Wire material correction apparatus 11 Base 40,60 Roller 40A, 40B, 60A Correction means 40a, 60a Fixed roller 40b, 60b Movable Roller 41 Support plate 42, 52, 62 Roller shaft 45, 55, 65 Circumferential groove 50 Guide roller 51 Entrance angle adjustment roller

Claims (2)

A wire straightening device that corrects the bending of a plurality of wire drawn from a plurality of reels to make a straight line,
There are the same number of correction means as the plurality of wire rods that are provided above and below the wire rod that runs in the horizontal direction and are composed of a plurality of rollers arranged in a staggered manner along the running direction of the wire rod, and these A plurality of correction means, the first correction mechanism in which the adjacent correction means are respectively arranged shifted in the axial direction of the roller;
A second straightening mechanism having one straightening means provided on a side of the wire running in the horizontal direction and comprising a group of rollers arranged in a staggered manner along the running direction of the wire; ,
A guide mechanism that guides the plurality of wires that have passed through the first correction mechanism to the correction means of the second correction mechanism,
The wire straightening device in which the guide mechanism adjusts the angle of entry of each of the plurality of wire rods into the straightening means of the second straightening mechanism to be the same.   The guide mechanism has an approach angle adjusting roller that adjusts the approach angle, and a circumferential groove into which the wire rod can be fitted passes through the first correction mechanism on a circumferential surface of the approach angle adjusting roller. The wire straightening device according to claim 1, wherein the same number of the plurality of wire rods is provided.

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