JPH06240547A - Single knit fabric, apparatus for producing the same and method therefor - Google Patents

Abstract

PURPOSE:To obtain inlay knit fabric having an inlay density twice as high as that of conventional double fleece knit fabric. CONSTITUTION:This single knit fabric is obtained by forming ground loops at an interval of one needle with each knitting feeder, knitting a needle without forming the ground loops while holding yarn together with new fed yarn with the next knitting feeder and thereby forming double loops from the two kinds of ground yarns. The knit fabric according to this method has an arrangement in which the double loops of both the first and the second wales are shifted at a half pitch in the wale direction. Thereby, a symmetrical stitch in which inlay yarn is pressed with either of two ground yarns and the inlay yarn resembles the form of the so-called double fleece knit fabric on the side of the front seam side of the knit fabric is obtained. Since the ratio of inlay loops to the double loops is the same, the inlay density is twice that of conventional double fleece knitted fabric.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a single-knit knitted fabric and an apparatus and method for manufacturing the same. In particular, it relates to a high-density inlay knitted fabric and a knitting apparatus and method thereof.

[0002]

2. Description of the Related Art As a method for knitting an inlay knitted fabric (also called double fleece or fleece knitting), in which a double jersey loop is formed with a ground yarn and an inlay yarn is sandwiched between the double loops, The following methods are known. A method of using a circular knitting machine having a knitting needle and a sinker having a two-step sinker nose, the manufacturing process of which comprises forming one process in an inlay feeder part, a tie in feeder part, and a knit in feeder part as described below. . Inlay feeder section: The selected knitting needle rises to the tuck position. Feed the inlay yarn on the lower sinker nose of the sinker. The knitting needle moves to the next tie-in feeder section. Tie-in feeder part: The sinker moves forward and the inlay yarn is pushed out by the upper sinker throat part of the sinker, and at the same time, all the knitting needles rise to the knit position. The inlay yarn supplied by the inlay feeder is cleared by the knitting needle latch. After supplying the tie-in yarns to the knitting needles, all the knitting needles descend, and only the inlay yarns on the lower sinker nose of the sinker are knocked over from the knitting needle head. The tie-in loop is retained in the hook, and the old loop does not knock over from the hook portion, and the knitting needle moves to the next knit infeeder. Knit infeeder part: All the knitting needles rise from the latch of the knitting needles to the position where the tie-in loop is not cleared.
After supplying the knit-in yarn, the knitting needle descends and at the same time the sinker retracts, knocking over the old loop at the sinker top.

[0003]

In the 1 × 1 double fleece knitted fabric knitted by the above double fleece manufacturing method, the ratio of the tie-in loop and the knit-in loop double loop to the inlay loop is 1: 0. .5. (Fig. 13
Reference) An object of the present invention is to provide an inlay knitted fabric having an inlay density higher than that of a conventional double fleece knitted fabric.

[0004]

The knitted fabric of the present invention has the structure described in claims 1 and 2, and the ratio of the double loop to the inlay loop is 1: 1. The manufacturing apparatus of the present invention has the structure described in claims 3 and 4. The manufacturing method of the present invention has the structure described in claim 5. In these claims, the "needle selecting means" and the "needle selecting portion" are control cams having a shape as shown in FIG. 1, for example. "Yarn supply means"
For example, yarn carriers.

[0005]

The knitted fabric of the present invention is a high density inlay knitted fabric having an inlay density twice as high as that of the conventional double fleece knitted fabric. In addition, since it is composed of a double loop and an inlay loop composed of two types of ground yarn, it is rich in non-run property.

[0006]

The present invention will be described in detail below with reference to the accompanying drawings. FIG. 14 is a knitting schematic main part of a single circular knitting machine used in the present invention, and is provided with a cylinder C, a sinker S, a yarn carrier Y, and a cam holder H. A large number of needle grooves are formed on the outer circumference of the cylinder C, and the cylinder needles CL and CH are vertically slidable along the needle grooves. The cylinder rotates at the same speed as the gear ring (GR) provided on the lower side. The sinker is radially slidable along a sinker groove formed in the sinker dial. The yarn carrier Y is for feeding the knitting needles, and the yarn carrier ring support Y
It is attached to the yarn carrier ring YR via S. The cam holder H has a cam (K1-K2; T1-T2; W1-W6) for controlling the cylinder needle.

FIG. 1 shows an operation diagram of needles and sinkers in the 1 × 1 inlay knitting (knitting with every other inlay loop jump) according to the present invention, where A1 is a cylinder low butt needle CL. , A2 is an operation line of the cylinder high butt needle CH, and A3 is an operation line of the sinker S.

In the cylinder C, cylinder low butt needles CL and cylinder high butt needles CH are alternately arranged. The operations of the first to sixth feeders of the cylinder low butt needle CL and the operations of the fourth to sixth feeders of the cylinder needle CH and the first to third feeders are the same. Further, the operations of the first to third feeders of the sinker S and the operations of the fourth to sixth feeders are the same. Therefore, for example, the cross-sectional view of the cylinder high butt needle CH in the section 3-3 is almost the same as the cross-sectional view of the cylinder low butt needle CL in the section 8-8. Therefore,
Illustration of the cylinder needle CH is omitted.

3 to 12 are sectional views taken along the line 3-3 to 12-12 in FIG.

In the first feeder, as shown in FIG.
The cylinder needle CL is raised to the knit position by the knit cam K1 and the old loop OL is moved to the cylinder needle CL.
Clear from the latch of. At this time, the yarn carrier Y
The inlay yarn L1 is fed through the No. 1 yarn. Then, FIG.
As shown in, the old loop OL closes the latch of the cylinder needle CL as the cylinder needle CL descends,
The inlay yarn L1 is captured. Meanwhile, at this time, sinker S
Moves backward to a position where the inlay yarn L1 can be fed onto the lower sinker nose S3. Furthermore, the cylinder needle C
As for L, the head of the cylinder needle CL is the lower sinker nose S3
It descends to the top and moves to the second feeder while holding the inlay yarn L1 in the hook. On the other hand, the inlay yarn L1 is accommodated in the upper sinker throat S2 by the forward movement of the sinker S, and at the same time, it is pushed out to the back of the cylinder needle CH (not shown). Cylinder needle CH holds the ground loop in the hook with the latch closed,
Further, the old loop OL is held on the head of the cylinder needle CH and moved to the second feeder by the welt cam W1.

In the second feeder, as shown in FIG.
The cylinder needle CL moves up to the knit position by the knit cam K2, and the inlay yarn L1 captured by the first feeder is obtained.
Clear from the latch. At this time, the yarn carrier Y
The ground yarn G1 is fed through the thread 2. Then, FIG.
As shown in (1), the latch of the cylinder needle CL is closed by the inlay yarn L1 as the cylinder needle CL is lowered, and the ground yarn G1 is captured. On the other hand, at this time, the sinker S retreats outward to a position where the ground yarn G1 can be fed onto the lower sinker nose S3. Cylinder needle C
L descends on the lower sinker nose S3 by the knit cam K2, but the old loop OL is not knocked over, the ground yarn G1 is in the hook, and the inlay yarn L
While holding 1 on the hook head of the cylinder needle CL, it moves to the next feeder. After that, as the sinker S advances, the inlay yarn L1 held on the hook head of the cylinder needle CL is pushed out to the back of the cylinder needle CL by the upper sinker throat S2 and is knocked over. The cylinder needle CH moves up to the tack position by the tack cam T1, and then descends to catch the ground yarn G1 while holding the ground yarn G2 captured by the feeders before the first feeder at the tack position. Further, the cylinder needle CH straddles the lower sinker nose S3 and pulls in the ground thread G1, and at the same time sinker top S5.
The ground thread G2 is also pulled over, and the old loop O
Knock L over. At this time, the amount of yarn in which the ground yarn G1 is drawn over the lower sinker nose S3 becomes the amount of yarn necessary for forming the loop of the cylinder needle CL in the fifth feeder.

In the third feeder, as shown in FIG.
The sinker S retreats outward, and the ground yarn G1 and the inlay yarn L1 remaining on the lower sinker nose S3 move to the sinker top. Then, the old needle OL of the cylinder needle CL is lowered to a position just before knocking over by the welt cam W2, and the forward movement of the sinker S accommodates the ground yarn G1 and the inlay yarn L1 in the hook of the cylinder needle CL into the lower sinker throat S4. . The cylinder needle CH advances to the fourth feeder while holding the welt position by the welt cam W3.

In the fourth feeder, the cylinder needle CH is moved up to the knit position by the knit cam K3, and the hold loop OL is cleared by the latch of the cylinder needle CH. The inlay yarn L2 is fed through the yarn carrier Y3. As the cylinder needle CH descends, the old loop OL closes the latch of the cylinder needle CH and catches the inlay yarn L2. On the other hand, at this time, the sinker S retracts outward to a position where the inlay yarn L2 can be fed onto the lower sinker nose S3. Further, the cylinder needle CH moves to the next feeder with the head of the cylinder needle CH descending onto the lower sinker nose S3 and holding the inlay yarn L2 in the hook. On the other hand, the inlay yarn L2 is accommodated in the upper sinker throat S2 by the forward movement of the sinker S and at the same time pushed out to the back of the cylinder needle CL. The cylinder needle CL is, as shown in FIG. 8, the ground yarn G1 captured by the second feeder with the latch closed.
Is held in the hook of the cylinder needle CL, and the alto loop OL is held on the head of the cylinder needle CL. Next, as shown in FIG. 9, the sinker S retracts outward,
The cylinder needle CL moves to the fifth feeder by the welt cam W4 while holding the ground thread G1.

In the fifth feeder, the yarn carrier Y4
The ground yarn G2 is fed through the. Cylinder needle C
H moves up to the knit position by the knit cam K4 and clears the inlay yarn L2 captured by the fourth feeder from the latch. As the cylinder needle CH descends, the inlay yarn L2 closes the latch of the cylinder needle CH and captures the ground yarn G2. At this time, the ground thread G
The sinker S retreats outward to a position where the yarn 2 can be fed onto the lower sinker nose S3. Further, as the cylinder needle CH descends, the head of the cylinder needle CH is pulled down onto the lower sinker nose S3, but the old loop OL is not knocked over, the ground yarn G2 is in the hook, and the inlay yarn L2 is hooked. It moves while being held on the outer periphery. Thereafter, as the sinker S advances, the inlay yarn L2 on the outer peripheral portion of the needle hook is pushed out by the upper sinker throat S2 onto the needle spine of the cylinder needle CH,
The inlay yarn L2 is knocked over on the lower sinker throat S4. The cylinder needle CL is shown in FIG.
As shown in FIG. 2, the ground yarn G1 is raised to the tack position by the tack cam T2 and then lowered to hold the ground yarn G1 captured by the second feeder at the tack position.
Capture 2. Further, as shown in FIG. 11, the cylinder needle CL draws the ground thread G2 across the lower sinker nose S3 and at the same time draws the ground thread G1 across the sinker top S5 to knock over the old loop OL. At this time, the amount of yarn in which the ground yarn G2 is drawn over the lower sinker nose S3 is the amount of yarn necessary for loop formation of the cylinder needle CH in the second feeder.

In the sixth feeder, the sinker S retreats outward so that the ground yarn G2 and the inlay yarn L are
2 comes off the lower sinker nose S3, the cylinder needle CH is lowered by the welt cam W5 to the position just before the knockover, and then the sinker S moves forward so that the ground thread G2 and the inlay thread L2 in the hook of the cylinder needle CH are moved to the lower sinker. Store in throat S4. As shown in FIG. 12, the cylinder needle CL moves to the next feeder in a state where the welt position after the stitch formation is held by the welt cam W6.

The knitting method of the inlay knitting structure of the above embodiment is 1 repeat with 6 feeders, and the cylinder needle and the cylinder cam arrangement are knitting in 2 races, so that 1 × 1 inlay knitting is performed. However, if the cylinder needle and cylinder cam arrangement is 4 races, 3 × 1 inlay knitting (that is, the inlay loop skips 3
Book-by-book organization) is possible.

According to the knitting test results, the sinker S
It was found that the height from the sinker top S5 to the upper end of the lower sinker nose S3 is 1.5 to 2.2 mm. If this height is less than this value, the amount of yarn required for loop formation will be insufficient, and thread breakage will not be possible for knitting, and if it is greater than this value, the amount of yarn required for loop formation will be excessive, This is because it is not possible to form a uniform loop while the loop remains loose.

[0018]

In the knitting method of the present invention, a ground loop is formed every other needle in each knitting feeder, and the needles that do not form the ground loop are held with the yarn and are fed together with a new supply yarn in the next knitting feeder. Since it is knitted, a double loop is formed by two types of ground yarns.
That is, the knitted fabric of the present invention is characterized in that the double loop of the first wale and the double loop of the second wale are arranged so as to be offset by a half pitch in the wale direction. The inlay yarn is held down by one of the two ground yarns, and the inlay yarn has a well-balanced stitch on the surface side of the knitted fabric, which is similar to that of a so-called double fleece knitted fabric. In addition, the ratio of the inlay loop to the double loop is the same, the inlay density is double that of the conventional double fleece knitted fabric, and a high-density inlay knitted fabric is obtained.

Further, since it is composed of a double loop composed of two types of ground yarns and an inlay loop, it is rich in non-run property.

[Brief description of drawings]

FIG. 1 is a motion diagram and a cam arrangement diagram of a cylinder needle and a sinker showing a knitting process according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a knitted fabric according to an embodiment of the present invention.

FIG. 3 is a side view showing a section 3-3 in FIG.

FIG. 4 is a side view showing a section 4-4 in FIG.

5 is a side view showing a section 5-5 in FIG. 1. FIG.

6 is a side view showing a section 6-6 in FIG. 1. FIG.

7 is a side view showing a 7-7 cross section in FIG. 1. FIG.

8 is a side view showing a cross section taken along line 8-8 of FIG.

9 is a side view showing a 9-9 cross section in FIG. 1. FIG.

10 is a side view showing a section 10-10 in FIG. 1. FIG.

11 is a side view showing a cross section taken along line 11-11 of FIG. 1. FIG.

12 is a side view showing a 12-12 cross section in FIG. 1. FIG.

FIG. 13 is an enlarged view of a knitted fabric according to a conventional example (double fleece knitting).

FIG. 14 is a cross-sectional view of a knitting part according to an example of the present invention.

[Explanation of symbols]

A1 cylinder low butt needle (CL)
Operating line A2 Cylinder high butt needle (CH)
Operation line A3 Sinker operation line G1, G2 Ground yarn L1, L2 Inlay yarn Y1-Y2 Yarn carrier K1-K4 Knit cam T1, T2 Tuck cam W1-W6 Welt cam B1-B4 1st loop-4th loop D1, D2 Contact part E1, E2 Inlay loop OL Old loop S sinker S1 Upper sinker nose S2 Upper sinker throat S3 Lower sinker nose S4 Lower sinker throat S5 Sinker top

Claims (5)

[Claims] 1. A rotary cylinder, a cylinder needle (CL, CH) which is alternately arranged in a needle groove of the rotary cylinder, and is controlled by at least two kinds by needle selecting means, and a nose portion having two stages, and control is provided. A single-knit knitted fabric knitted by a circular knitting machine having a sinker (S) controlled by means, wherein: (A) a first loop formed of knitting yarns separately supplied by a cylinder needle ( The double loop consisting of B1) and the second loop (B2) has the first wale engaged in the knit state continuously in the wale direction. (B) A double loop composed of a third loop (B3) and a fourth loop (B4) formed of knitting yarns separately supplied by a cylinder needle is continuously engaged in the wale direction in a knit state, The arrangement of heavy loops comprises a double loop of the first wale and a second wale in which the double loops are offset from each other in the wale direction. (C) The first wale and the second wale are formed repeatedly in the course direction. (D) The first loop (B1) is separated from the second loop (B2) from the engaged contact portion of the double loop and extends obliquely downward to form a first connecting portion (D1), and further, the third loop The second loop (B2) is connected to the contact portion separated from the fourth loop (B4) from the double loop engaged contact portion of the loop (B3), and the second loop (B2) is formed from the double loop engaged contact portion. Separated from the first loop (B1) and extended diagonally upward, the second connecting part (D
2) is formed, and is further connected to the contact portion separated from the third loop (B3) from the engaged contact portion of the double loop of the fourth loop (B4). (E) The first inlay loop (E1) engages with the first connecting portion (D1) in an inlaid state, and the second connecting portion (D)
The second inlay loop (E2) is engaged with 2) in the inlay state. A single-knit knitted fabric having the above-mentioned configurations (A) to (E). 2. The ratio of double loop to inlay loop is
The knitted fabric according to claim 1, which is substantially 1: 1. 3. A rotary cylinder, a cylinder needle (CL, CH) which is alternately arranged in a needle groove of the rotary cylinder, and which is controlled by at least two types by needle selecting means, and a nose portion having two stages, and is controlled. A device for producing a single-knit knitted fabric, which is knitted by a circular knitting machine including a sinker (S) controlled by means, wherein (a) an old loop (OL) is held by a lower sinker throat (S4). Continuing, the clear needle selecting means for clearing this from the latch of the cylinder needle by the raising of the cylinder needle, the yarn supplying means for supplying at least one inlay yarn to the cylinder needle, and the supplied inlay yarn for the upper sinker throat (S2). ) And a needle selecting means for holding the cylinder needle hook and moving it to the next needle selecting portion. (B) The cylinder needle selected in the inlay needle selection section holds the inlay thread in the upper sinker throat (S2), and clear needle selection means for clearing this from the latch of the cylinder needle by raising the cylinder needle. The yarn supplying means for supplying at least one first ground yarn (G1) and the first ground yarn (G1) supplied by descending the hook portion of the cylinder needle to the vicinity of the upper sinker throat (S2) are inlay needles. And a needle selecting means for knocking over the inlay yarn supplied from the head part of the cylinder needle at the upper sinker throat (S2) by advancing the sinker (S). (C) The tack selected cylinder needle holds the stitch made of the first ground thread (G1) in the needle hook, and holds the old loop (OL) without knocking over from the head of the cylinder needle. (S) is moved backward to move all the loops to the sinker top (S5), and then the sinker (S) is moved forward to hold all the loops at the lower sinker throat (S4). (D) A yarn supplying means for supplying at least one second ground yarn (G2) to the retained needle selected cylinder needle, and a first ground yarn supplied with the second ground yarn (G2) at the tack needle selecting portion. A clear needle selection unit that is formed by forming a double loop together with the loop (G1) and knocking over the old loop (OL) from the head of the cylinder needle. An apparatus for manufacturing a single-knit knitted fabric, which has the configuration of (a) to (d) above. 4. The sinker top (S) of the sinker (S)
The device according to claim 3, wherein the height from 5) to the upper end of the lower sinker nose (S3) is 1.5 mm to 2.2 mm. 5. A rotary cylinder, a cylinder needle (CL, CH) which is alternately arranged in a needle groove of the rotary cylinder, and is controlled by at least two types by needle selecting means, and a nose portion having two stages, and is controlled. A method for manufacturing a single-knit knitted fabric knitted by a circular knitting machine including a sinker (S) controlled by means, comprising: (a) holding an old loop (OL) at a lower sinker throat (S4). Continue to clear this from the latch of the cylinder needle by raising the cylinder needle, supply at least one inlay thread to the cylinder needle, and hold the supplied inlay thread between the upper sinker throat (S2) and the cylinder needle hook. And then move to the next needle selection section. (B) The cylinder needle selected in the inlay needle selection process holds the inlay yarn at the upper sinker throat (S2), and when the cylinder needle rises, it is cleared from the cylinder needle latch and at least one first ground is attached to the cylinder needle. The thread (G1) is supplied, the hook portion of the cylinder needle descends to the vicinity of the upper sinker throat (S2), and the supplied first
The tack needle selecting step in which the ground yarn (G1) is knocked over from the head of the cylinder needle at the upper sinker throat (S2) by advancing the sinker (S) with the inlay yarn supplied in the inlay needle selecting step. (C) The tack selected cylinder needle holds the stitch made of the first ground thread (G1) in the needle hook, and holds the old loop (OL) without knocking over from the head of the cylinder needle. (S) retracts and moves all the loops to the sinker top (S5), then advances the sinker (S) and holds all the loops at the lower sinker throat (S4). (D) At least one second ground thread (G2) is supplied to the cylinder needle selected for holding, and the second ground thread (G2) is supplied.
2) is the first ground thread (G
A clear needle selection process in which a double loop is formed with the loop consisting of 1) and the old loop (OL) is knocked over from the head of the cylinder needle. A method for manufacturing a single-knit knitted fabric, which comprises the needle selection steps (a) to (d) described above.