JPS59179863A - Tufting method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tufting method in which piles are formed at required locations on a tufted fabric from the periphery to form a pattern.

The conventional tufting method for forming patterns on the pile surface is to vary the tension of the pile yarn sent to the needle for each stitch and adjust the amount of pullback of the previously tufted loop pile to create height differences in the pile length. Another method is to determine whether or not to pull out the pile yarn loop that has been hooked from the 21 bucks from the tip of the looper's thread hook, and to form a pattern (design/pattern) that is divided into cut pile and loop pile. However, in these conventional methods, since the pile stitches are continuous, it is not possible to collectively form piles at a certain required location on the tufted fabric.

Of course, there is a method of forming piles all together in one place using a hand tufting machine that drives only one needle, but this method is inefficient because it tufts the pile - (IN - + circumference). be.

Therefore, the present invention attempts to form a pattern based on the presence or absence of shoes by selecting the needles in a tufted machine in which a plurality of needles are arranged in the width direction of the tufted machine. A needle support frame is supported, a needle is mounted within the needle support frame so as to be able to reciprocate toward the looper, a piano steel wire is connected to the rear end of the needle, a needle is selected for each stitch,
The gist of this method is to selectively insert pile yarn loops into the base fabric by giving the selected needles a reciprocating motion of pushing them out and pulling them back from the needle support frame toward the looper using steel wire and piano steel wire. Unlike the conventional method in which a plurality of needles are supported on a needle bar and inserted into the base fabric at the same time, the most distinctive feature is that the needles are individually inserted into the base fabric using a piano steel wire connected to the rear end of the needle.

The present invention will be explained below with reference to Examples.

FIG. 1 shows the first feature of the present invention, and shows a local cross section of a tufted machine equipped with a plurality of needles 1 and a plurality of loopers 4 that cooperate with each needle 1 arranged in the width direction of the machine. Showing the side.

The looper 4 is attached to the looper block 3, and is supported on the tip of the swinging frame 33 via the looper 13 with its tip facing the conveyance direction of the base fabric 11, and the needles that cooperate with each other are supported by the shaft 35 that swings and rotates. Reference numeral 51 is a needle support frame that is driven to reciprocate toward the axis, and the horizontal bar 5 is supported in the width direction of the tufted machine body.
2, and a plurality of guide holes 53 with rectangular cross sections corresponding to the number of needles 1 are arranged in series in the machine width direction at regular intervals with their axes facing toward the looper 4 side.

The rear half of the needle 1 is thicker than the front half and has a rectangular cross section that fits into the guide hole 53, and a piano steel wire 54 is joined to the rear end and is attached to the guide hole so as to be freely slidable up and down.

The upper end of the guide hole 53 is covered with a mounting bracket 55 having an insertion hole for the piano steel wire 54, and the lower end is covered with a guide plate 56 having an insertion hole through which the front half of the needle 1 can pass freely. The plate is clamped and fixed by a rod between a needle support frame 51 and a rear end 52.

The guide hole 53 is longer than the thicker part of the rear half of the needle 1, so the needle 1 is configured to slide up and down within the guide hole 53 between the mounting bracket 55 and the guide plate 56.
The sliding distance is set to be greater than the distance between the looper 4 and the base fabric 11.

The other end of the piano steel wire 54 is joined to the piston of the air cylinder, and the portion from the air cylinder to the mounting bracket 55 is covered with a pipe 57 so as to be freely slidable. The piston is selectively driven for each stitch, and depending on the selection, the needle 1 slides up and down in the guide hole 53 via the piano steel wire 54 and reciprocates to the looper 4 or not. is selectively determined for each stitch.

As a result, when the needle 1 is driven by the piston, the pile yarn 10 is inserted into the base fabric II to form a pile yarn loop 5, and the needle l is pulled out from the base fabric 11 by the thread hooking part 6 of the looper 4. The loop pile 58 is formed by being locked up to the point 7 and then detached from the tip 7 of the louver thread hooking part. On the other hand, when needle 1 is not driven by a piston,
The pile yarn 10 is not inserted into the base fabric 11, and no pile 9 is formed at the stitch location 59. In this way, piles 9 are formed at certain selected locations on base fabric 11,
Patterns based on the presence or absence of piles are drawn.

FIG. 2 illustrates a second embodiment, in which two needle support frames 5
1A and 51B are placed back to back in parallel to the width direction of the machine, and the axis 2A of the guide holes 53A and 53B is attached to the frame 52.
2B is installed at an angle. The cross section of the guide hole 53 is flat, and the piano steel wire and the needle are bonded to each other via a freely sliding bonding stop 60 within the guide hole. The axes of the guide holes corresponding to the needle support frames 51A and 51B intersect on the base fabric 11, and are inclined to the vertical line passing through the intersection point F of the base fabric 11. ing. As a result, when the needle is inserted into the base fabric 11, the tip of the needle IA projects away from the tip 7 of the looper threading portion, and the tip of the needle 1A projects in the direction toward the tip 7 of the louver threading portion.

The needles 18 and IB attached to these corresponding guide holes 53A and 53B are different pile yarns 10A, respectively.
, 10B at the tip, and different piano steel wires 54 are connected to each other by different air cylinder screws I/N.
A and 54B are selected for each stitch and the pile yarn is driven to be inserted into the base fabric. Therefore, needle 18 and needle IB are not inserted at the same time and they collide at intersection point F. There are no words.

A shallow groove 1 extending in the width direction of the machine is provided on the upper side of the louver block 3.
4 and a front groove 15 are attached, and a front ridge 16 sandwiching the front groove.
In the middle ridge 17, there are slit holes 19 and 20 for inserting the shank 18 of the looper 4 toward the axes 2A and 2B of the knees IA and IB, with the axes coaxial and spaced at the same distance as the tuft gauge. They are connected in the width direction of the machine. In addition, the restoration 21 has a through hole 23 for inserting the piano steel wire 22.
is drilled coaxially with each slit hole 19,20.

A piano steel wire 22 connects the air cylinder piston (not shown) and the rear wheel of the looper shank 18, and the portion from the air cylinder to the back of the return 21 can slide into the pipe 24. covered with.

The looper shank 18 is slidably inserted into the slit holes 19 and 20 with the tip 7 of the threading part of the looper facing in the direction opposite to the direction of conveyance of the base fabric 11. The edge has a notch 25 longer than the width a of the groove 15.
There is.

The rear lAl4 and the front groove 15 are closed by the cover plate 27 and the cover plate 26 after the shank 18 is inserted from the slit hole 19 to the slit hole 20 and the looper 4 is attached.

This cover plate 26 has a notch 2 in the shank that fits into the front groove 15.
There is a convex part 28 that protrudes to 5, and its width a is shorter than the length b of the notch 25, so there is a clearance 29 corresponding to the difference (ba), and when you try to pull out the looper, the rear end of the notch is It hits the rear corner of the convex part, and conversely, when you try to push the looper in, the front end of the notch hits the front wheel corner of the convex part,
In this way, the looper 4 has a length c (=
It is attached to the louver block 3 so that it can protrude and retract toward the axis of the needle by the amount b-a).

The amount of movement (distance) of the swinging frame that carries the louver block 3 and moves back and forth is the tip of the looper threading section when the looper 4 is pushed into the looper block 3 and brought closest to the needle axis side. 7 is the shaft center 2B of needle IB
The length C of the clearance 29 is adjusted so that even if the needle IA protrudes beyond the axial center of the needle IA, it does not protrude beyond the axial center of the needle Sufficient length so that when the looper 4 is pulled out (pushed out) from the looper block 3 at the point when it is brought closest to the side, the tip 7 of the looper threading part crosses and protrudes beyond the axis 2A of the needle 1^, In other words, the movement trajectory of the tip 7 of the looper threading part and the movement trajectory of the needles 18 and 18 (
The distance f connecting the two intersections M and N with the axes 2A and 2B)
It has a length equivalent to .

The screw 1 pushes and pulls the looper 4 through the piano steel wire 22 to make it appear and retract from the louver block 3, but the piston that drives the looper is a well-known and commonly used piston that drives the needle. The needle IA is controlled by the pattern control I roll device and in conjunction with the pattern control device that drives the needle.
If the needle IB is inserted without being inserted, do not push out the looper 4, keep it retracted, and insert the needle IB.
In each stitch cycle 1.1, the looper 4 is pushed out when the needle IB is inserted and the needle IB is not inserted.
It is driven by selectively rolling the control every time.

Therefore, when the needle IA is inserted without the needle IB, the piano steel wire 22 cal-per 4 from the louver block 3 to the axial center addition of the needle IA, the tip 7 of the looper thread H) is the knee 1 needle I
It fits into the pile yarn loop 5A formed by thread A, hooks it, and locks it in the thread hooking part 6 until the next stitch cycle. The pile yarn loops that had been stopped are sheared to form a cut pile of 98 pieces. On the other hand, if needle IA is not inserted but needle IB is inserted, even if the looper 4 is not pushed out from the louver block 3, the tip 7 of the looper thread hook reaches the needle IB and fits into the pile thread loop 5B. This is then hooked onto the thread loop 5B, and held on the thread hook 6 until the next stitch cycle, and the thread H) section 6 and the knife 12 are used to shear the pile thread loop 5B. Cut pile 9B with 14JiL.

In this way, by working together with one looper 4, several types of needles each passing a different pile yarn are made into a set, and one of them is selected for each stitch cycle, and the needles are connected to the base fabric 11 through the piano steel wire. By inserting the looper into the looper block 3 and selectively driving the looper in conjunction with the needle selection drive so that the tip 7 of the looper threading part crosses the axis of each needle and crosses it. Piles of different pile yarns are distributed and formed on the base fabric, thereby making it possible to draw a desired pattern (design/pattern).

In addition, if each stitch is not pushed out from the needle support frame and therefore does not form a pile, the amount of pile yarn supplied for that stitch is reduced, but the amount of pile yarn supplied in this way is determined by the difference in height. A well-known conventional device used for extracting a pattern (design/pattern) from a certain pile can be used as is.

[Brief explanation of drawings]

FIG. 1 is a local cross-sectional side view of a Kufteno F machine equipped with a looper that cooperates with the needle and a leaf that cooperates with the looper in the first embodiment arranged in the machine width direction, and FIG.
FIG. 11 is a side view of a tufted machine in which a looper that cooperates with a needle and a knife that cooperates with the looper are arranged and installed in the width direction of the machine according to the embodiment. 1... Needle 2... Shaft core 3... Looper block cock 4... Looper 5... Pile thread loop 6...
Threading part 7... Tip of the threading part of the looper 8... Tufted fabric 9... Pile 10... Pile thread 1J... Base fabric 12... Knife 13... Louver par 14, 15・・・ Groove
16... Front ridge 17... Middle ridge 18... Shank I9, 20... Slit hole 21... 1 & ridge 22... Steel wire 23... Through hole 24... Pipe 25... ...Notches 26, 27...Cover plate 28...
・Convex portion 29... Play space 33... Rocking rod
35... Shirt 1-51... Needle support frame 52... Back width) 53... Guide hole 54...
・Piano steel wire 55...Mounting bracket 56...Guide handling 6o...Joining cantilever permission) Applicant: Shun Hirotsu
Akira

Claims (1)

[Claims] In the tufting method, multiple needles and multiple loopers are arranged in parallel in the width direction and the base fabric is conveyed between them while tufting the pile.The needles are placed in a needle support frame supported in the width direction. A piano steel wire is connected to the rear end of the needle, a needle is selected for each stitch, and the selected needle is caused to reciprocate toward the looper using the piano steel wire. Characteristic tufting method.