JPH0213050B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a splicing device for warp yarns for carpets made of non-thermoplastic fibers.

[Conventional technology and its problems]

For example, when manufacturing tufted carpet using non-thermoplastic fibers using the warp beam method, the rod warp yarns wound around the beam are aligned on the top of the tufting machine and sequentially unwound.
It is fed into a tufting machine and planted on the desired base fabric. When the required tufting is completed, each end of the warp group in the completed tufting state is joined to each end of the next warp group wound around the beam, and then the tufting of the next lot is started. It is supposed to be done.

By the way, in order to join the warp group of the warp after the above-mentioned tufting is completed and the warp group of the next lot, it is conventionally known to join them manually or to join them using a tying machine.

However, when it is done manually, the warp threads are joined one by one using an adhesive, etc., which is extremely troublesome and time-consuming, resulting in extremely low joining efficiency, and even worse. This significantly reduced the efficiency of the tufting machine. Furthermore, when piecing threads using a tying machine, it can be done very efficiently and in a short time, but because the thread splicing is a so-called knotting method, the knots inevitably become thicker, and the needle of the tufting machine It was very difficult to pass through the hole, and there was a risk of it breaking in some cases.
In addition, the needles of the tufting machine move up and down while holding the warp threads and pierce the base fabric to plant the warp threads, so the presence of knots makes it difficult for the warp threads to pass through the base fabric structure. As a result, it was practically impossible to perform tufting smoothly.

This invention solves the conventional problems at once, and provides a convenient device that can automatically splic carpet warp threads, etc., quickly and reliably while keeping them thin and elastic. This is what we are trying to provide.

[Means for Solving the Problems] That is, the present invention includes a rotatable alignment bar 2 having a threaded portion 3 of a required length, and both sides movably disposed on both sides of the alignment bar 2 in the longitudinal direction. First and second pinch parts 6, 12 made up of a pair of pinch members 7, 13, and substantially easy-shaped upper and lower crimping members 18, 2 that are arranged to be able to rise and fall freely in correspondence with the threaded part 3.
3, and an adhesive supply section 25 disposed close to the upper and lower pressure bonding members 18 and 23.

[Effect]

The end of the old lot warp group A, which has undergone the required tufting, is set on one end of the alignment bar 2 under tension, and as the alignment bar 2 rotates, the old lot warp group A is held one by one by the threaded part 3 in a predetermined position. Arrange them at intervals (see Figure 2). After the old lot warp group A, which has been aligned, is pinched by the first pinch part 6, the first pinch part 6 is operated upward, and the old lot warp group A is separated from the screw part 3 (see Figs. 3 and 4). (see figure). Then, after setting the ends of the next warp group B on the alignment bar 2, the threads are similarly aligned one by one using the threaded portions 3 and held by the second pinch portions 12 (see FIG. 4). Thereafter, the lower crimping member 18 is raised to hold the aligned next lot warp group B one by one in its groove, and the first pinch 6 is lowered to hold the old lot warp group A held therein one by one. After stacking the warp threads of the next lot one by one on the warp group B, adhesive is supplied from the adhesive supply section 25 (see FIGS. 5 to 7). Then,
The upper crimp member 23 is lowered to lower the lower crimp member 1.
8, the overlapping portions of the rod warp groups A and B are crimped and joined (see FIGS. 8 and 9).

〔Example〕

An embodiment of the present invention shown in the drawings will be described below.

Reference numeral 1 denotes a rectangular parallelepiped-shaped frame, 2 an alignment bar with a circular cross section horizontally arranged approximately in the center of the frame 1, 3 a rectangular screw portion of a required length formed at one end of the alignment bar 2, and 4 an alignment bar. This is a motor connected to one end of the bar 2 via a wrap transmission device 5. 6
is a first pinch section consisting of a pair of movable pinch members 7 on both sides horizontally disposed on both sides along the longitudinal direction of the alignment bar 2;
Each pinch member 7 constituting the is formed to be slightly longer than the square threaded portion 3. Reference numeral 8 denotes a pair of rotating ball screws on both sides for moving each of the pinch members 7 along the longitudinal direction of the alignment bar 2; 9 a pair of guide bars on both sides for guiding the pinch members 7; 1;
0 is a support member that supports both ends of the guide bar 9 and the rotary ball screw 8, and 11 is the support member 1.
This is a ball spline that is vertically installed to allow the 0 to move up and down. Reference numeral 12 denotes a second pinch part disposed inside the first pinch part 6, and the second pinch part 12, like the first pinch part 6, is composed of a pair of freely movable pinch members 13 on both sides, Each pinch member 13 is movable up and down and along the longitudinal direction of the alignment bar 2 via a pair of rotating ball screws 14 on both sides, a pair of guide bars 15 on both sides, a support member 16, and a ball spline 17. . Reference numeral 18 denotes a rack-shaped lower crimping member horizontally disposed slightly outwardly in correspondence with the square threaded portion 3 of the alignment bar 2;
It is formed in a slightly longer shape, and a heating device 19 such as a heater is built in the upper part, and a cooling device 20 such as a water cooling type is built in the lower part. 21 is a support bar that supports the lower pressure bonding member 18, and 22 is a ball spline that allows the lower pressure bonding member 18 to move up and down. Reference numeral 23 designates a rack-shaped upper crimping member disposed above the lower crimping member 18, and the upper crimping member 23 is movable up and down by a fluid pressure cylinder 24 in order to fit into the lower crimping member 18. There is. Then, the above-mentioned upper and lower crimping members 1
8 and 23 are formed in a rack shape with the same pitch as the square threaded portion 3. Reference numeral 25 denotes a spray adhesive supply section disposed corresponding to the lower pressure bonding member 18 described above.

Next, the operation of the apparatus shown in the above embodiment will be explained.

First, the end of the old lot warp group A, which has undergone the necessary tufting, is set on one end of the alignment bar 2 while being pulled. Thereafter, the motor 4 is driven to rotate the square screw portion 3 together with the alignment bar 2. Then, the old lot warp group A is sequentially 1
One book at a time enters the valley of the square threaded portion 3 and is transferred in alignment while being branched (see FIG. 2). Then, when the first old warp yarn reaches the end of the square screw section 3, the motor 4 is stopped, the rotation of the alignment bar 2 is stopped, and the pinch members 7 on both sides forming the first pinch section 6 are aligned. Clamp the old lot warp group under the condition. Thereafter, the pinch member 7 is actuated upward to remove the old lot warp group A from each threaded portion 3, and then actuated toward one end of the alignment bar 2 (see FIGS. 3 and 4). Then, after setting the end of the next lot warp group B on the alignment bar 2 while pulling it, the alignment bar 2 is similarly rotated, and the warps of the next lot warp group B are aligned one by one using the square screw part 3. , are held between a pair of pinch members 12 constituting the second pinch 12 and held in an aligned state (see FIG. 4). When the alignment and clamping of the next lot warp group B is completed, the lower crimping member 18 is raised by the rotation of the ball spline 22, and the next lot warp group B aligned in the aligned state is fitted and held one by one in its groove. , the first pinch part 6 that aligns and pinches the old rot warp group A is moved onto the second pinch part 12 and then lowered, and the old rot warp group A to align and pinch is fitted into the groove of the lower crimping member 18. one by one on the next lot warp group B (5th
(see Figure and Figure 6). Then, the adhesive is sprayed and supplied from the adhesive supply device 25 to the overlapped portion (see FIG. 7). When the supply of adhesive is completed, the hydraulic cylinder 24 is activated, and the upper pressure bonding member 23 is lowered and engaged with the lower pressure bonding member 18 (see FIGS. 8 and 9). After that, the heating/cooling devices 19 and 20 are activated in sequence to
The overlapping portions of warp groups A and B in the next lot are heated and cooled to join them. When the joining is completed, the upper and lower crimping members 18 and 23 are raised and lowered, respectively, and the joined portions of the old and next warp groups A and B are separated from the grooves. At this time, it is best to cut off the free ends of the old and next lot warp yarns located at both ends of the joint.

In the above embodiment, the alignment bar 2 is formed with a square threaded portion 3; however, the alignment bar 2 is not limited to this, and may have a known thread shape such as a triangular thread, a trapezoidal thread, or a round thread. Of course.

Further, the device according to the present invention can be applied not only to carpet warp yarns but also to other yarn splicing.

[Effects of the Invention] According to the present invention, as described above, there is provided a rotatable alignment bar 2 having a threaded portion 3 of a required length, and a pair of both sides movably disposed on both sides of the alignment bar 2 in the longitudinal direction. first and second pinch parts 6, 12 consisting of pinch members 7, 13; substantially easy-shaped upper and lower crimping members 18, 23 disposed so as to be movable up and down corresponding to the threaded part 3; Part crimping members 18, 23
Since the warp yarn groups A and B of the old and next lots are set in sequence on the alignment bar 2, they are aligned one by one using the threaded portion 3, and then 1 and 2nd pinch parts 6, 12
Even with the operation of aligning and clamping the lower crimp member 18 into the groove of the roughly easy-shaped lower crimp member 18, supplying adhesive, and crimping the upper crimp member 23 of the same shape, it is possible to The warp groups A and B can be joined automatically, quickly, reliably, and extremely efficiently. Moreover,
The joint is thin and can maintain appropriate elasticity, allowing the thread to pass through the needle hole of the tufting machine smoothly and without fear of thread breakage.

[Brief explanation of drawings]

The drawings show one embodiment of the invention.
The figure is a longitudinal sectional view seen from the side, FIG. 2 is a sectional view taken along the - line in FIG. 1, and FIG. 3 is a partially enlarged side view showing the operating state of the first and second pinch parts 6, 12.
4 is a partially enlarged front view of the same part, FIG. 5 is a partially enlarged side view showing the operating state of the lower crimping member 18, FIG. 6 is a partially enlarged sectional view taken along the line - in FIG. 5, and FIG.
The figure is a partially enlarged front view showing the operating state of the adhesive supply section 25, FIG. 8 is a partially enlarged side view showing the operating state of the upper pressure bonding member 23, and FIG. 9 is a cross section taken along the - line in FIG. 10 are side views showing joined warp threads. 2... Alignment bar, 3... Square screw part, 6... First
Pinch part, 7...Pinch member, 12...Second pinch part, 13...Pinch member, 18...Lower pressure bonding member, 23...Upper pressure bonding member, 25...Adhesive supply unit.

Claims (1)

[Claims] 1. A rotatable alignment bar 2 having a threaded portion 3 of a required length, and a pair of pinch members 7, 13 on both sides movably disposed on both sides of the alignment bar 2 in the longitudinal direction.
first and second pinch parts 6, 12, substantially easy-shaped upper and lower crimping members 18, 23, which are disposed so as to be movable up and down in correspondence with the threaded part 3; A yarn splicing device for warp yarns for carpets, etc., comprising an adhesive supply section 25 disposed close to the carpet.