JP2730849B2 - Apparatus and method for manufacturing wire connecting band - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for connecting a plurality of wires in a belt shape.

[0002]

2. Description of the Related Art Conventionally, as a method of manufacturing staples (staples), a plurality of wires are arranged adjacent to each other so as to be adjacent to each other, and each of the joined wires is rolled by a pair of rolling rolls. There is a type in which the rolled wires are bonded to each other to be integrated into a band shape, and the wire connecting band integrated into the band shape is wound on a take-up reel (Japanese Patent Application Laid-Open No. Sho 64).
-57935).

In this case, when a part of the wire is stretched in the longitudinal direction and loosened due to a dimensional error of each wire, deformation of a rolling roll, or the like,
Due to the slack, the wires cannot be bonded to each other, or even if the wires can be bonded, the bonding strength is insufficient and a defective product may be generated in a staple as a final product. On the other hand, poor adhesion between wires can occur not only due to dimensional errors of the wires and deformation of the rolling rolls, but also due to slips of the wires with respect to the rolling rolls and temperature differences between the wires.

[0004] That is, when a part of each wire flowing between the rolling rolls slips, only the tension of the wire becomes excessive or insufficient compared with other wires, and the wire has a different internal tensile stress. Glued together,
For this reason, poor bonding between the wires may occur.
In addition, since each wire is heated by rolling and then exposed to the outside air while being sent to the downstream side, the temperature of the wires on both sides in the width direction of the adjacent wires arranged in a strip shape is particularly the same in winter. The temperature is lower than the temperature of the wire on the side, the elongation of each wire becomes uneven due to such a temperature difference, and the above-mentioned slack occurs, and the wires cannot be bonded to each other, or even if they can be bonded, their bonding strength is insufficient. In some cases, defective products may be generated in staples as final products.

[0005] Therefore, in order to shift to the bonding step without loosening each wire, a manufacturing equipment is provided between the rolling means and the bonding means, which is provided with a tension applying device for individually applying tension to each wire to suppress the slack. This tension applying device is constituted by urging a grooved roller abutting on each wire rod downward by a spring force (Japanese Patent Application Laid-Open No. Sho 64).
-57938).

[0006]

However, in the above prior art, although each wire is tensioned by a grooved roller to prevent loosening, each wire is simply inserted between the rolling rolls. Since the slip with respect to the roll is still likely to occur, it is difficult to drastically prevent poor adhesion and damage to the wire rod due to the slip.

Further, in the conventional tension applying device, the wires are individually and individually urged downward to prevent the wires from being loosened in the bonding step and to keep the tension constant. However, the non-uniformity of elongation due to the temperature difference of each wire described above is as follows.
Since it often occurs in a wire at a fixed position, even if tension is applied by a tension applying device, slack accumulates in a specific wire and immediately exceeds its control range. There is a problem that the resurfacing must be performed.

In view of such circumstances, the present invention prevents each wire from slipping on a rolling roll, and transfers each wire to a bonding step in a state where the temperature difference between the wires is made uniform. It is an object of the present invention to more reliably prevent quality deterioration of a wire connecting band.

[0009]

According to the present invention, the following technical measures have been taken in order to achieve the above object. That is, the apparatus of the present invention is a rolling means having a joining means for bringing the wires into contact with each other so that a plurality of wires are arranged side by side, and a pair of rolling rolls for rolling the wires in contact with each other. And, in the wire rod connecting band manufacturing apparatus having a bonding means for bonding the rolled wires to each other to integrate them into a band, and a winding means for winding the wire connecting band integrated into the band, Each wire rod exiting the adjoining means is S-shaped so as to be wound around one of the pair of rolling rolls in a folded manner and then further wound around the other rolling roll in a folded manner. A temperature control means is provided around the rolling means, and between the rolling means and the bonding means, a temperature control means for maintaining the thus rolled wire at a predetermined temperature is provided.

In this case, furthermore, a pair of front and rear tension rollers arranged at regular intervals in the front and rear direction of the flow of the wire are provided between the bonding means and the winding means.
Of the pair of front and rear tension rollers, the pair of tension rollers are wound so as to be folded back around the downstream tension roller and then further wound around the upstream tension roller so as to be folded back. Preferably.

In the method of the present invention, a plurality of wire rods are arranged adjacent to each other so as to be adjacent to each other, and each of the wire rods is rolled by a pair of rolling rolls. In the method of manufacturing a wire connecting band that is bonded to each other and integrated into a band shape, and the wire connecting band integrated into the band shape is wound on a take-up reel,
After being wound in a folded shape on one of the pair of rolling rolls and then wound in an S-shape which is further wound in a folded shape on the other rolling roll, each wire thus rolled is subjected to a predetermined It is characterized in that it is adhered to each other after the temperature is maintained.

In this case, furthermore, a pair of front and rear tension rollers arranged at regular intervals in the front and rear direction of the flow direction of the wire are provided upstream of the take-up reel, and the downstream tension roller of the pair of front and rear tension rollers is provided. After the wire connecting band is wound in a folded shape, the wire connecting band is wound around the upstream tension roller further in a folded shape so that the wire connecting band is laterally folded in an S-shape with a pair of front and rear tension rollers. After that, it is preferable that the wire connecting band is wound around the winding reel.

[0013]

According to the present invention, each wire is S-shaped to a pair of rolling rolls, and each wire is applied to a rolling roll of each wire as compared with the case of normal rolling in which each wire simply passes between the rolling rolls. Since the degree of contact is extremely large, each wire is effectively prevented from slipping with respect to the rolling roll.

Further, since each wire rod that has passed through the rolling roll without slipping as described above is maintained at a predetermined temperature by the temperature wire rod means, it is possible to prevent uneven elongation of each wire rod due to a temperature difference. The state is then shifted to the bonding means. Further, the pair of tension rollers on the downstream side are laterally laid in an S-shape, and between the pair of rolls on the upstream side in which the S-shape is rolled, a sufficient and uniform enough for each wire rod is provided. By applying the tension, even if a dimensional error of the wire rod or a deformation of the rolling roll occurs, the occurrence of loosening is suppressed to a minimum.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 schematically shows a manufacturing apparatus according to the present invention, wherein 1 is a supply means for a wire W provided with a plurality of supply reels 10, and 2 is a plurality of guides (not shown), etc. Abutting means 3 for bringing the wires W into contact with each other is a rolling means having a configuration described later.

Reference numeral 4 denotes temperature control means for heating (winter) or cooling (summer) each wire W coming out of the rolling means 3 to maintain a predetermined temperature. Reference numeral 5 denotes an adhesive applicator 11 and a drying oven. 12 is a bonding means having a plurality of 12 alternately. In addition, 6
Reference numeral denotes a take-up unit having a configuration to be described later, and reference numeral 7 denotes a winding unit that winds the manufactured wire rod connecting band on the take-up reel 30.

In the above-mentioned rolling step 3, a pair of upper and lower rolling rolls 15 and 16 are provided. A plurality of ridges (not shown) for rolling the wire W into a predetermined cross-sectional shape are provided on the outer peripheral surfaces of both rolling rolls 15 and 16 along the circumferential direction. These rolling rolls 15,
16, the wire W is first wound around the upper rolling roll 15 so as to be folded in a reverse flow direction from top to bottom, and after passing between the two rolling rolls 15 and 16, the wire W is wound on the lower rolling roll 16. It is wound so as to be folded in a forward direction from top to bottom so as to draw an S-shape (inverted shape).

The wire W fed from the lower rolling roll 16 is guided upward by a guide roller 17 and sent to the next step (temperature control section 4). The pick-up unit 6
A pair of take-up rollers 22, 23, which are parallel to each other at the top and bottom,
Immediately upstream, there is provided a pair of tension rollers 20 and 21 which are installed in parallel with each other at predetermined intervals in front and rear.

The tension roller 20 arranged on the upstream side
It is held at a position slightly higher than the tension roller 21 arranged on the downstream side. These tension rollers 20, 2
1, the wire connecting band is first wound around the tension roller 21 arranged downstream from the lower side to the upper side in the reverse flow direction, and then wound on the tension roller 20 arranged upstream.
Is wound so as to be folded in a forward direction from bottom to top, so as to draw an S-shaped sideways shape.

The wire rod connecting belt is fed to the next step (the take-up reel 30) while the upper and lower surfaces of the wire connecting belt are pressed between the take-up rollers 22 and 23. In this way, the wire W is prevented from slipping on the rolling rolls 15 and 16 and the wire connecting band is prevented from slipping on the tension rollers 20 and 21. Therefore, the tension of the wire W (including the state of the wire connecting band) stretched between them is kept constant.

The wire connecting band is a tension roller 2
Because it is S-shaped hanging sideways on 0 and 21,
Both rollers 2 more than when they are S-shaped in the vertical direction
The degree of contact with 0, 21 is increased, so that slip of the wire connecting band is more reliably prevented. The take-up rollers 22 and 23 are positioned so as to be shifted back and forth like the above-described tension rollers 20 and 21, and one of the tension rollers 20 and 21 is removed, so that the wire connecting band is removed from the take-up rollers 22 and 23. May be S-shaped.

[0022]

As described above, according to the present invention,
Each wire is kept at a predetermined temperature after preventing the roll from slipping, and then the wires are bonded to each other. The wires can be adhered to each other in a state where they are prevented, so that the quality deterioration of the wire connecting band can be more reliably prevented.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an apparatus according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 2 Seaming means 3 Rolling means 5 Bonding means 15 Rolling roll 16 Rolling roll 20 Tension roller 21 Tension roller 22 Pulling roller 23 Pulling roller W Wire rod

Claims (4)

(57) [Claims] An abutting means for bringing a plurality of wires into contact with each other so as to be adjacent to each other, and a rolling means having a pair of rolling rolls for rolling the abutted wires. An apparatus for manufacturing a wire connecting band, comprising: bonding means for bonding the rolled wires to each other to integrate them into a band; and winding means for winding up the wire connecting band integrated into the band. The rolling means so that each wire rod coming out of the contacting means is S-shaped so that it is wound in a folded shape on one of the pair of rolling rolls and then further wound in a folded shape on the other rolling roll. And a temperature control means for maintaining each of the thus rolled wires at a predetermined temperature is provided between the rolling means and the bonding means. . 2. A pair of front and rear tension rollers disposed at regular intervals in the front and rear direction of the wire in the flow direction are provided between the bonding unit and the winding unit. The pair of tension rollers are wound around the downstream tension roller in such a manner that the pair of tension rollers is wound so as to be folded back and then further wound around the upstream tension roller in a folded S shape. 1
5. The apparatus for manufacturing a wire connecting band according to claim 1. 3. A plurality of wire rods are arranged adjacent to each other so as to be adjacent to each other, and each of the joined wire rods is rolled by a pair of rolling rolls, and the rolled wire rods are bonded to each other to form a strip. In a method for manufacturing a wire rod connecting band that is wound into a winding reel, the wire rods integrated in the band shape, wherein the adjacent wire rods, one of the pair of rolling rolls After being wound around the rolling roll in a folded shape, the other rolling roll is further wound around in an S-shape and rolled, and the wires thus rolled are held at a predetermined temperature and then adhered to each other. A method for manufacturing a wire rod connecting band, comprising: 4. A pair of front and rear tension rollers arranged at regular intervals in the front and rear direction of the wire in the flow direction are provided on the upstream side of the take-up reel, and the wire is connected to the downstream one of the pair of front and rear tension rollers. By winding the band in a folded shape and then further winding it around the tension roller on the upstream side, the wire connecting band is wound around a pair of front and rear tension rollers such that a laterally folded S-shape is formed. 4. The method according to claim 3, wherein the wire reel is wound around the winding reel.