JPH08268641A - Ring shape wire bundle supporting tool and wire bundle releasing device - Google Patents

Abstract

PURPOSE: To restrain tensile strength on a wire and smoothly deliver the wire by providing an elastic guide bar with at least the lower end elastically expand ed to the outer edge of a setting along the guide bar so that a column can be deflected when the delivered wire is tensed. CONSTITUTION: At the time when a wire rod E which has been delivered from a wire bundle WE begins to be delivered from another wire bundle WE, the end 31 of a lead-out member 30 is still located above a supporting tool 20 having supported the wire bundle WE. On this account, the wire E is slantly delivered. Tensile strength on the wire E works to tense a column 40 and an elastic guide bar 24 for the supporting tool 20 to the lateral direction. The column 40 which has a coil spring 43 in part can elastically be deflected to the lateral direction. Still, the column 40 can also be extended to the longitudinal direction. In this way, tensile strength on the wire E can be relaxed and the hitch of the wire E can be removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire rod unwinding device for unwinding and taking out an electric wire, which is a wire rod, from a wire rod bundle formed by winding a covered electric wire in a ring shape, and guiding it to an electric wire processing device or the like. Is. Further, the present invention relates to a ring-shaped wire rod support for use in the wire rod unwinding device for supporting the ring-shaped wire rod bundle.

[0002]

2. Description of the Related Art For example, a machine called an automatic severing machine has been conventionally used to manufacture a length-adjusted electric wire which is cut to a predetermined length and has terminal fittings crimped on both ends. With an automatic cutting machine, unwind the wires from a pre-stocked ring-shaped covered wire bundle, cut them to a specified length with a cutter, peel off the coating on both ends of the cut wires, and remove the terminals from the exposed core wire. It is designed to crimp metal fittings. The ring-shaped covered wire bundle is set in advance in the wire rod unwinding device, and the wires are sequentially taken out from the wire rod unwinding device.

FIG. 4 schematically shows a schematic structure of a wire rod unwinding device BM. With reference to FIG. 4 (a), the wire rod unwinding device BM includes a supporting member 90 that supports the ring-shaped covered electric wire bundle WE on the base member 1, and the electric wire E is paid out along the supporting member 90. It is supposed to be. Also,
A trumpet member 2 is provided above the wire bundle unwinding device BM. The trumpet member 2 is for feeding the electric wire E straight upward to stabilize and feed the electric wire E. The fed electric wire E is fed to the electric wire cutting portion through the trumpet member 2. The trumpet member 2 is rotatably provided around the stay 2a. Therefore, the wrapper member 2
Is a predetermined tension applied to the electric wire E fed out,
The electric wire E is always located right above the support 90.

By the way, in the case of manufacturing a scaled electric wire,
When the size is long and the number of manufactured lots is large, one ring-shaped electric wire bundle WE may not be sufficient to manufacture one lot. In such a case, as shown in FIG. 4 (a), the support 90 that supports the ring-shaped electric wire bundle WE is
And two wire-shaped wire bundles WE are connected in advance. As a result, when all the one ring-shaped electric wire bundle WE is used, the electric wire E is continuously fed from the other ring-shaped electric wire bundle WE as shown in FIG. 4B. afterwards,
The trumpet member 2 rotates around the stay 2a in the direction of the white arrow and moves above the other ring-shaped electric wire bundle WE.

[0005]

When two support members 90 supporting the covered electric wire bundle WE are arranged in this way, there are the following problems. That is, one ring-shaped electric wire bundle WE
When all are used, as shown in FIG.
Subsequently, the electric wire E is paid out from the other ring-shaped electric wire bundle WE, but when the electric wire E of the other annular wire bundle WE starts to be paid out, the trumpet member 2 moves the support 90 on the left side in the figure (which is unwound first). The support device 9 on the right side of the drawing is located above the support device that was supporting the ring-shaped electric wire bundle WE.
The electric wire that is unwound from the ring-shaped electric wire bundle WE supported by 0 is fed obliquely. Therefore, the electric wire E is connected to the support 9
In some cases, the electric wire E may be caught by 0 and a large tension may be applied to the electric wire E. As a result, the electric wire E is strongly pulled in the anti-feeding direction, which may cause an error in the measuring process in the automatic cutting machine.

[0006] Therefore, a first object of the present invention is to provide a support member for a ring-shaped wire rod which can smoothly feed the wire rod without applying a large tension to the drawn wire rod. A second object of the present invention is to provide a wire rod unwinding device that includes a plurality of ring-shaped wire rod support members and smoothly feeds the wire rod from each wire rod bundle in order.

[0007]

In order to achieve the first object of the present invention, a support for a ring-shaped wire rod bundle according to claim 1 is erected on a pedestal and a central portion of the pedestal and has a long length. A column that is elastically displaceable in a direction intersecting with the direction, a plurality of guide grooves that are radially formed in the pedestal around the column, the upper end is fixed to the upper end of the column, and the lower end is in each guide groove. The elastic guide rod is slidably fitted and has a lower end side elastically expanded to the outer edge side of the pedestal along the guide groove.

According to this structure, when the support column and the elastic guide rod are inserted into the center hole of the wire bundle wound in a ring shape, the lower end side of the elastic guide rod that elastically expands along the guide groove causes the ring-shaped wire bundle to expand. The inner peripheral edge of the wire is elastically pressed, whereby the wire bundle can be supported. The wire rod can be slidably contacted with the elastic guide rod and can be fed out upward. When the wire rod to be paid out is strongly pulled, the column can elastically bend in that direction. This makes it possible to immediately relieve the large tension that is likely to occur in the wire rod that is being fed out. That is, when the wire rod to be fed out is caught on the column or the elastic guide rod and is strongly pulled, the column is
It can elastically bend in that direction. As a result, it is possible to immediately relieve the large tension that is likely to occur in the wire rod that is being fed out, and also to eliminate the catching of the wire rod.

In order to achieve the first object of the present invention,
A ring-shaped wire bundle support according to claim 2 is the ring-shaped wire bundle support according to claim 1, wherein the column has an elastic member in at least a part of its longitudinal direction. It is a feature. According to this configuration, claim 1
The same operation as the invention according to In addition, by using an elastic member for at least a part of the support, the support can be easily elastically displaceable.

In order to achieve the first object of the present invention,
A ring-shaped wire bundle support according to claim 3 is the ring-shaped wire bundle support according to claim 1 or 2, wherein the column includes a coil spring in at least part of its longitudinal direction. It is characterized by. According to this structure, the same operation as that of the invention according to claim 1 or 2 is achieved. In addition, by using a coil spring for at least a part of the support, the support can be easily elastically displaceable. Further, by constructing the entire column with a coil spring, the column can be easily constructed.

In order to achieve the second object of the present invention,
A wire rod unwinding device according to a fourth aspect of the present invention is installed and erected so as to correspond to a pedestal on which a plurality of ring-shaped wire rods can be placed and a center of a position where each ring-shaped wire rod is placed. A plurality of struts that are inserted into a ring-shaped wire bundle and that can be elastically displaced in a direction intersecting the longitudinal direction thereof, a plurality of guide grooves radially formed on the pedestal around each stanchion, and an upper end of the struts. It is fixed to the upper end of the and the lower end is slidably inserted in each guide groove, and the lower end elastically expands in the direction away from the support along the guide groove when the support is inserted in the ring-shaped wire bundle. A plurality of elastic guide rods that press the inner peripheral edge of the wire bundle, and a lead-out member that is displaceable above the support column inserted in the wire bundle in which the wire rod is fed.

According to this structure, when the support column and the elastic guide rod are inserted into the center hole of the wire bundle wound in a ring shape, the lower end side of the elastic guide rod elastically expanding along the guide groove causes the ring-shaped wire bundle to be extended. The inner peripheral edge of the wire is elastically pressed, whereby the wire bundle can be supported. The wire rod can be slidably contacted with the elastic guide rod and can be fed out upward. When the wire rod to be paid out is strongly pulled, the column can elastically bend in that direction. This makes it possible to immediately relieve the large tension that is likely to occur in the wire rod that is being fed out.

Therefore, when all the wire rods are fed out from one wire rod bundle and subsequently the wire rods are fed out from the other wire rod bundles connected to the one wire rod bundle, the fed wire rods are led out extremely obliquely. Even when pulled into a member,
By bending the strut in the drawing direction, it is possible to immediately relieve a large tension that may be generated in the wire rod. Further, even when the wire rod to be fed out is caught by the support column or the elastic guide rod, the support rod is similarly bent, so that the catching of the wire rod is immediately removed, and a large tension that is likely to occur in the wire rod can be immediately relieved.

In order to achieve the second object of the present invention,
A wire rod unwinding device according to a fifth aspect is the wire rod unwinding device according to the fourth aspect, in which two of the columns are provided side by side on a pedestal, and the lead-out member is rotatable to a predetermined stay. It is attached to a column, and is capable of moving above one column and above the other column by rotating.

According to this structure, the same operation as that of the invention according to claim 4 is achieved. That is, in the invention according to the present claim, even if the wire rod fed from the wire rod bundle supported by one of the pillars is fed out from the wire rod bundle supported by the other pillar, a large tension is generated in the wire rod. There is no. Then, the lead-out member rotates around the stay and moves above the other column.

[0016]

Embodiments will be described in detail below with reference to the accompanying drawings showing embodiments. FIG. 2 is a diagram schematically showing a wire bundle unwinding device (hereinafter referred to as “device”) A according to an embodiment of the present invention. Further, FIG. 1 is an enlarged perspective view of a main part of the device A.

Referring to FIG. 2, a schematic structure of the device A will be described. The device A includes a base member 10 and a support member for a ring-shaped wire rod (hereinafter, referred to as a support member for annular wire bundle), which is provided in parallel on the base member 10.
It is called "support tool". ) 20 and a lead-out member 30 for guiding the wire rod E fed from the wire rod bundle WE to a subsequent processing step. The base member 10 serves as a base for installing the support tool 20. A stay 11 for installing the lead-out member 30 is provided at a predetermined portion of the base member 10. The lead-out member 30 guides the drawn wire E straightly upward to stabilize and feed the wire E, and is formed in a so-called trumpet shape. The lead-out member 30 is attached to the stay 11 via an arm 31. That is, the lead-out member 30 is attached to the distal end 31 a of the arm 31, and the base end 31 b of the arm 31 is rotatably attached to the stay 11.

Accordingly, the lead-out member 30 is rotatable around the stay 11 and is movable directly above the support column 40 of each support 20. The drawn wire E is inserted into the lead-out member 30 and then sent to the subsequent processing step. The lead-out member 30 is adapted to rotate by a predetermined tension generated in the wire rod E when the wire rod E is fed through the lead-out member 30. Therefore, the lead-out member 30 constantly supports the wire bundle WE that is being fed out.
It will be located directly above 0.

Referring to FIGS. 1 and 2, the support 20
Is for supporting the wire rod bundle WE wound in a ring shape, preventing the wire rod E from being entangled, and sending out the wire rod E satisfactorily. The support tool 20 includes a pedestal 22, a column 40 standing upright in the center of the pedestal 22, a plurality of guide grooves 23 formed on the pedestal 22, and upper ends 24a fixed to the upper ends 21a of the columns 40, respectively. The lower end portion 24b has a plurality of elastic guide bars 24 slidably fitted in the respective guide grooves 23.

The pedestal 22 is an elongated flat plate radially assembled in eight directions by, for example, welding. In FIG. 1, only one support tool 20 is illustrated, but in reality, the other support tool is arranged next to the support tool 20 (on the right side in the drawing) (see FIG. 2). Then, a flat plate 22b forming a part of the pedestal 22 on the side of the one support tool 20.
And a flat plate forming a part of the pedestal on the other support tool side (not shown) are connected. That is, the pedestal of the other support tool is integrally formed with the pedestal 22 of the one support tool 20. However, both the pedestals 22 may be separately configured, and one rectangular flat plate may be used instead of combining the elongated flat plates as described above.

The bases 22 are attached to the base member 10. In this embodiment, the pedestal 22 is attached to the base member 10 by welding, and the pedestal 22 is
It is formed integrally with the base member 10. However,
The pedestal 22 may be formed separately from the base member 10, and the two may be fastened together using, for example, bolts and nuts.

The guide grooves 23 are bored radially at regular intervals around the center of the pedestal 22 (the center of the radially formed flat plate). That is, the guide groove 23 is formed in each of the elongated flat plates forming the pedestal 22. The guide groove 23 extends from the imaginary fixed circumference centered on the center of the pedestal 22 toward the center of the pedestal 22 by a predetermined length.

As the elastic guide rod 24, for example, a piano wire can be used. The elastic guide rod 24 is gradually expanded away from the support column 23 from the upper end 24a toward the lower end 24b with the lower end 24b inserted in the guide groove 23. As a result, the elastic guide rod 24
The lower end portion 24b of the is pressed against the inner wall portion of the guide groove 23. Further, the lower end portion 24 b of the elastic guide rod 24 penetrates the guide groove 23 and projects downward by a predetermined length while being inserted into the guide groove 23.

The column 40 has a columnar shape as a whole, and has an upper portion 41, a lower portion 42, and a coil spring 43 connecting them. Coil spring 43 and upper part 41
The lower part 42 and the lower part 42 can be connected, for example, by welding. Therefore, when a lateral force is applied to the upper portion 41, the coil spring 43 is deformed. That is, the upper end 21a of the column 40 can be elastically displaced in the direction of the force. Even when the upper portion 41 is pulled upward, the coil spring 43 extends,
The upper end 21a of the column 40 can move upward.

When the upper portion 41 of the support column 40 is displaced in this manner, the elastic guide rod 24 arranged on the displacement direction side further penetrates deeply into the guide groove 23. On the other hand, the elastic guide rod 24 arranged on the side opposite to the displacement direction moves in the direction of coming out of the guide groove 23, but the lower end portion 24b of the elastic guide rod 24 projects downward from the guide groove 23 by a predetermined length. Therefore, it does not come out of the guide groove 23. The shape of the support column 40 is not limited to the columnar shape, and may be formed in a prismatic shape.

Referring to FIG. 2, the ring-shaped wire bundle WE is set in a state in which the support column 40 and the elastic guide rod 24 are inserted. In this state, the elastic guide bar 24 elastically presses the inner peripheral edge of the wire bundle WE outward. The wire E is a wire bundle WE
It is unwound from the inner peripheral side and is fed out. As the wire E is advanced, the diameter of the inner peripheral edge increases, and the lower end portion 24b of the elastic guide rod 24 also expands following this. Therefore, the wire bundle WE is always supported while being pressed by the elastic guide rod 24. Further, in the present embodiment, two support tools 20 are arranged side by side, and the wire rods E of the wire rod bundle WE supported by each of them are connected by the connecting portion E1. Therefore, the wire rod E of the wire rod bundle WE supported by the one support tool 20
When all of the wire rods are fed out, the wire rod E of the wire rod bundle WE supported by the other support tool 20 is continuously fed out.

According to this embodiment, the following operational effects are obtained. If the wire rods E are sequentially fed out from the wire rod bundle WE and all the wire rods E are fed out from one wire rod bundle WE, as shown in FIG. 3, the wire rod E is continuously fed out from the other wire rod bundle WE. In this case, when the wire rod E fed from one wire rod bundle WE starts to be fed from the other wire rod bundle WE, the wire rod E is fed out extremely obliquely and the tension applied to the wire rod E temporarily increases. It is expected that. Further, as a result of the wire material E being sent out at an extremely oblique angle, when the wire material E is caught by the support tool 20 supporting the other wire material bundle WE, it is expected that a very large tension will be applied to the wire material E.

However, in this embodiment, when a large tension is to be generated in the wire rod E to be fed,
The support tool 20 bends in the feeding direction of the wire E, so that the generation of a large tension can be immediately suppressed, and the wire E can be immediately caught. More specifically, the wire rod E fed from one wire rod bundle WE
Is started to be paid out from the other wire bundle WE, the tip portion 31 of the lead-out member 30 is located above the support tool 20 which still supports the one wire bundle WE. Therefore, the wire E is sent out extremely obliquely.

Therefore, the tension applied to the wire rod E when the wire rod E begins to be paid out from the other wire bundle WE is determined by the support 2
It acts to pull the column 40 and the elastic guide rod 24 of 0 in the lateral direction. By the way, since the support tool 40 has the coil spring 43 in a part thereof, when the support tool 40 is pulled in the lateral direction, the support tool 40 can elastically bend in that direction (a direction intersecting the longitudinal direction of the support column 40). it can. Moreover, the support tool 40
Can also extend in the longitudinal direction.

With this, it is possible to immediately relieve the large tension that is about to occur in the wire E. Further, even when the wire rod E is caught by the upper end portion 21a of the support column 40 of the support tool 20 or the elastic guide rod 24, the support rod 40 is bent, so that the catching of the wire rod E can be immediately removed. Then, as the tension of the wire E is relaxed, the support column 40 is restored to the upright state. On the other hand, the lead-out member 30 moves directly above the other support tool 20 with the movement of the support column 40,
The wire rod E can be delivered well.

As a result, it is possible to avoid a phenomenon in which the wire rod E being drawn out is strongly pulled in the direction opposite to the feed-out direction, and the processing after the wire rod E can be performed accurately. That is, it is possible to accurately perform the scale processing of the wire rod E. The present invention is not limited to the above-mentioned embodiment, and the column 40 may be entirely constructed by a coil spring. In this way, the support column 40 is more flexible, and when the wire E is caught, the catch can be smoothly removed, and the large tension that is likely to occur in the wire E can be suppressed more effectively. The advantage is that

An elastic member such as rubber may be used instead of the coil spring 43. Further, the entire column 40 may be made of an elastic material such as rubber. This has the advantage that the column 40 can be easily manufactured using a molding die. Other, support tool 20
It is possible to make various design changes such that two or more can be arranged in parallel.

[0033]

According to the invention of claim 1, when the wire rod to be fed out is strongly pulled, the pillar is elastically bent in the pulling direction, so that a large tension is prevented from being applied to the wire rod. Can be delivered smoothly. According to the invention of claim 2, the same effect as that of the invention of claim 1 can be obtained. In addition, by constructing part or all of the support columns with elastic members, it is possible to easily and inexpensively manufacture the annular wire bundle support tool.

According to the invention of claim 3, the same effect as that of the invention of claim 1 or 2 can be obtained. in addition,
Coil springs can be used for a part or all of the columns, and a ring-shaped wire rod support can be more easily manufactured. According to the invention of claim 4, when all the wire rods are delivered from one wire rod bundle and then the wire rods are continuously delivered from other wire rod bundles connected to the one wire rod bundle, Even when the guide rod is caught or strongly pulled, it is possible to prevent the wire rod from being caught due to the bending of the support, and to prevent a large tension from being generated in the wire rod. As a result, the wire rod being fed out
It is possible to avoid a phenomenon in which the wire is strongly pulled in the anti-feeding direction, and it is possible to accurately perform processing after the wire rod. That is, it is possible to accurately perform the wire-scale measuring process.

According to the fifth aspect of the invention, when the wire rod fed from the wire rod bundle supported by one of the columns is fed out from the wire rod bundle supported by the other column, a large tension is applied to the wire rod. It does not occur. As a result, the same effect as the invention according to claim 4 is obtained. In addition, since the lead-out member rotates around the stay and moves from above one of the columns to above the other column, the lead-out member can be moved using a very simple mechanism.

[Brief description of drawings]

FIG. 1 is an enlarged perspective view of a main part of an apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing a schematic configuration of an apparatus according to an embodiment of the present invention.

FIG. 3 is a diagram schematically showing a state in which the support column is bent when the wire rod is pulled.

FIG. 4 is a schematic view showing a schematic configuration of a conventional wire rod unwinding device provided with two annular wire rod supporters. (A) It is a figure which shows the state in which the wire rod is paid out from the wire rod bundle supported by the support tool for one ring-shaped wire rod bundle. (B) It is a figure which shows the state which the wire rod extended from the support tool for one ring-shaped wire rod bundles has begun to be extended from the wire rod bundle supported by the support tool for other ring-shaped wire rod bundles.

[Explanation of symbols]

 A device WE wire bundle E wire 10 base member 20 support 21a upper end 22 pedestal 23 guide groove 24 elastic guide rod 30 lead-out member 40 post 41 upper 42 lower 43 coil spring

Claims (5)

[Claims] 1. A pedestal, a stanchion that is erected in the center of the pedestal and is elastically displaceable in a direction intersecting the longitudinal direction, and a plurality of guide grooves that are radially formed in the pedestal around the stanchion. The upper end is fixed to the upper end of the column, the lower end is slidably fitted in each guide groove, and the lower end side is provided with an elastic guide rod elastically expanded to the outer edge side of the pedestal along the guide groove. A support for a ring-shaped wire bundle, characterized by: 2. The ring-shaped wire bundle support according to claim 1, wherein the support column has an elastic member at least in a part of its longitudinal direction. Ingredient 3. The ring-shaped wire bundle support according to claim 1 or 2, wherein the column includes a coil spring in at least a part of its longitudinal direction. Support. 4. A pedestal on which a plurality of ring-shaped wire bundles can be mounted, and a pedestal that is erected upright corresponding to the center of the position where each ring-shaped wire bundle is mounted, and is inserted into the mounted ring-shaped wire bundle. , A plurality of columns that are elastically displaceable in a direction intersecting the longitudinal direction, a plurality of guide grooves that are radially formed in the pedestal around each column, and the upper ends are fixed to the upper ends of the columns. Along with the guide groove, the lower end is slidably fitted in each guide groove, and the lower end side elastically expands along the guide groove in the direction away from the support rod while the support rod is inserted into the ring-shaped wire rod bundle, and A wire rod unwinding device comprising: a plurality of elastic guide rods that are pressed; and a lead-out member that is displaceable upward of a column inserted into the wire rod bundle in which the wire rod is fed. 5. The wire bundle unwinding device according to claim 4, wherein the two columns are juxtaposed on a pedestal, and the lead-out member is rotatably attached to a predetermined stay. A wire rod unwinding device, characterized in that the wire rod unwinding device is movable above one column and above the other column by moving.