CN115704126A - Weaving method of terry knitted fabric based on flat knitting machine - Google Patents

Abstract

The invention provides a knitting method of a terry knitted fabric based on a flat knitting machine, which has excellent knitting efficiency. A path switching cam (17) is provided, in a stitch course for performing loop knitting, both a loop yarn and a binding warp yarn are pulled in a cam system on the side to become the base of a knitted fabric by SYS1, only the loop yarn is pulled in the cam system on the side to form a loop, an additional yarn is pulled in the cam system on the side to become the base of the knitted fabric by the subsequent SYS2, and the loop is flicked in the cam system on the side to form the loop.

Description

Weaving method of terry knitted fabric based on flat knitting machine

technical field

The present invention relates to a method of knitting terry knitted fabrics based on a flat knitting machine.

Background technique

The terry knitted fabric refers to a knitted fabric in which a terry yarn and a binding warp (シメyarn) to form the base of the terry knitted fabric, and on the reverse side of the base, the knitting needles of the other needle bed are used to form piles consisting only of the terry yarn.

Patent Document 1 discloses a method of knitting a terry knitted fabric with a flat knitting machine equipped with a sinker device. However, the technical solution described in Patent Document 1 cannot be knitted on a flat knitting machine that does not have a sinker device for pulling out a pile yarn.

FIG. 3 shows a method of knitting a terry knitted fabric based on a method different from that of Patent Document 1. As shown in FIG. This method is an example in which not only stitches based on pile yarns and binder warp yarns are used but also stitches formed of additional yarns are added to knitting the base of a terry knitted fabric. This has the advantage that the base loops can be tightened without loosening the loops by using not only the loops based on the loop yarn and the binding warp, but also adding the loops formed by the additional yarn.

Fig. 3 shows knitting performed by a carriage equipped with two cam systems, a cam system (SYS1) on the leading side and a cam system (SYS2) on the trailing side. The yarn feeder P is a yarn feeder for the pile yarn 31, and the yarn feeder B is a yarn feeder for the binding warp yarn 33, and the pile yarn 31 is allocated to SYS1, and the binding warp yarn 33 is allocated to SYS2.

In step (1), the knitting needles of FB and BB are moved forward and backward by SYS1 to pull in the pile yarn 31 . At this time, the knitting needles of FB are pulled in to such an extent that the old stitches formed in the previous course do not come off from the tips of the knitting needles, and this state is maintained to guide it to the SYS2 which is running backward. By SYS2, without moving the knitting needles of BB, only the knitting needles of FB in the above-mentioned state are advanced and retreated again to bite the binding warp yarn 33 . As a result, the knitting needles of the FB pull in both the pile yarn 31 and the binding warp yarn 33 to knock out the old stitches and form the first course that becomes the base of the pile knitted fabric.

In step (2), the second course of the base knitted fabric is formed by feeding the additional yarn 35 to the knitting needles of the FB through the yarn feeder A by using the SYS1. The knitting needles of BB are advanced and retreated without feeding the knitting yarn by SYS2, and the loops formed by SYS1 in step (1) are blown off from the knitting needles. In addition, in step (2), either one of the knitting of SYS1 and SYS2 may be performed first. By repeating the knitting of steps (1) and (2), the terry knitted fabric is knitted, but due to the relationship between the standby positions of each yarn feeder, only the cam carriage is not accompanied by the knitting shown in step (3). Since the empty course is moved, it is necessary for the carriage to move by three courses in order to complete one cycle of knitting.

[Prior Art Literature]

【Patent Literature】

[Patent Document 1] Japanese Patent Publication No. 60-59333

Contents of the invention

【Problems to be solved by the invention】

In the scheme of Fig. 3, the height position of the knitting cam needs to be adjusted or removed in SYS1 of step (1) so that the knitting needles of FB will not drop the old stitch formed in the previous course from the front end of the needle. In addition, in order to knit the terry knitted fabric with the additional yarn in the two cam systems, the carriage needs to be moved by three courses, and the productivity becomes extremely low. Assuming that in order to complete knitting in one course of a carriage, a carriage equipped with at least 4 cam systems is required. Therefore, a knitting method of a knitted fabric capable of efficiently knitting is required. An object of the present invention is to provide a method of knitting a terry knitted fabric excellent in knitting efficiency.

【Means used to solve the problem】

The present invention is a method of knitting terry knitted fabrics based on a flat knitting machine, using a flat knitting machine equipped with at least two cam systems on the front and rear cam carriages respectively equipped with a plurality of knitting needles. The front and rear needle beds reciprocate. In the cam system on the leading side, the terry yarn and the binding warp are supplied, and the knitting needles of the front and rear needle beds form loops based on the terry yarn and the binding warp to form a terry knitted fabric. In the first course of the base, the needles of the other needle bed are used to form piles composed of only pile yarns on the reverse side of the base, and in the cam system on the rear side, additional yarns are supplied to form loops similar to the ones formed. In the second course following the first course, the terry knitted fabric is knitted by repeating the above-mentioned knitting, wherein,

In each triangle system there are:

The needle-raising cam has a rising cam surface that raises the butt of the knitting needle so that the knitting needle enters; and

a knitting cam with a first pull-in surface that lowers the butts, pulls down the needles,

And, in each cam system of the cam carriage on the side forming the loop in the front and rear cam carriages, a path switching cam is provided, and the path switching cam is in the first pull-in position of the loop forming cam. The leading side of the surface has a second pull-in surface that lowers the butt and can switch the active state and the non-active state,

In the cam system on the leading side, the two yarn feeders are distributed in such a way that the loop yarn is distributed to the yarn feeder on the leading side and the binding warp is distributed to the yarn feeder on the trailing side, and in the cam system forming loops In the above, the path switching cam is made into an active state, and the knitting needles only bite the loop yarn in the loop yarn and the binding warp thread, and in the cam system forming the base of the loop knitted fabric, the knitting needle bites the loop yarn and binding the warp threads to form the first course that becomes the base of the terry knitted fabric,

In the cam system on the trailing side, the yarn feeder for the additional yarn is allocated on the trailing side corresponding to the continuous position of the binding warp, and the loop formed by the cam system on the leading side is blown from the knitting needles. In the cam system on the left side, by making the path switching cam active, the knitting needle does not bite the additional yarn but only brushes the loops, and in the cam system on the side forming the base of the loop knitted fabric, The needles engage the additional yarn to form the second course that becomes the base of the terry knitted fabric.

Preferably, path switching cams are respectively provided in the front and rear cam systems so that loops can be formed in either of the front and rear cam systems, and loop knitting is performed by making the path switching cams of the front and rear cam systems active. The course and the course for loop knitting with the path switching cams of the front and rear cam systems in an active state are interlaced and knit to form loops on the front and back of the terry knitted fabric.

【Invention effect】

In the present invention, in the course of pile knitting, both the pile yarn and the binding warp are drawn into the cam system on the side that becomes the base of the knitted fabric, but the pile yarn on the side where the pile is formed is drawn into the cam system. In the cam system, since the path switching cam is active, only the leading loop yarn is pulled in. As a result, knitting based on loop yarn and binding warp can be accomplished by a single cam system, and additional yarn knitting and loop brushing can also be accomplished by a subsequent single cam system. Therefore, if a flat knitting machine equipped with at least two cam systems is used on the carriage, even when stitches based on the additional yarn are added to the knitting of the terry knitted fabric, it is possible to pass through the carriage once. Move to knit the course of the terry knitted fabric.

In addition, if the path switching cams are respectively provided in the front and rear cam systems, loops can be formed in either of the front and rear cam systems. Therefore, it is possible to obtain a knitted fabric in which loops are formed on the front and back (front and back) of the base of the knitted fabric.

Description of drawings

Fig. 1 is a diagram showing a correspondence relationship between a cam system (SYS1) for performing pile knitting and knitting needles in the embodiment.

Fig. 2 is a diagram showing a cam system (SYS2) for performing pile knitting in the embodiment.

Fig. 3 is a diagram showing pile knitting using a conventional flat knitting machine.

[Description of Reference Signs]

1 knitting needle

3 triangle system

5-pin body

7 Jacks

7a Butt

9 selector teeth

9a Butt

11 selector jack

13 starting triangle

13a ascending triangle

15 Looped Triangle

15a The first pull-in surface

17 Path switching triangle

17a Second pull-in surface

19 Contact pressure plate

21 Tuck platen

23 path switching platen

31 Terry yarn

33 Binding Warp

35 additional yarn

P, B, A yarn feeder

Detailed ways

Embodiments of the present invention will be described below based on the drawings.

In the embodiment, an example using a two-bed flat knitting machine will be described. The flat knitting machine is equipped with two cam systems 3 and a plurality of yarn feeders on the front and rear cam carriages that reciprocate on FB·BB on which a plurality of knitting needles 1 are arranged. It should be noted that the cams mounted on the cam system 3, the driving method of the presser plate, the structure of the needle bed, the needle selection method of the knitting needles, etc. are the same as those of the known flat knitting machines disclosed in Japanese Patent No. 5057996, etc., so the description is omitted. . In addition, in the present embodiment, an example in which route switching cams described later are respectively provided in front and rear cam systems 3 is employed.

FIG. 1 is a schematic explanatory diagram showing the correspondence relationship between the knitting needle 1 and the cam system 3 . SYS1 and SYS2 have the same configuration. The knitting needle 1 includes a needle main body 5 , a needle jack 7 , a selector tooth 9 , and a selector jack 11 . The needle jack 7 is provided with a butt 7 a for advancing and retreating operation of the knitting needle 1 , and the selector tooth 9 is provided with a butt 9 a for selecting A, H, and B positions. In the figure, the selector tooth 9 is selected to the middle H position.

The cam system 3 is a cam system capable of knitting, tucking, and floating (non-knitting), but may also be a compound cam system capable of transferring stitches. The figure shows the state of SYS1 when the cam system 3 travels to the left and performs knitting. The cam system 3 includes a plurality of cams acting on the butt 7a and a plurality of pressure plates acting on the butt 9a. The needle raising cam 13 arranged in the center, the stitch forming cams 15, 15 and the path switching cams 17, 17 arranged on the left and right sandwiching it act on the butt 7a.

The needle raising cam 13 has a raising cam surface 13a that acts on the butt 7a to raise the knitting needle 1 to the knitting position. The knitting cam 15 is equipped with the 1st pull-in surface 15a which lowers the butt 7a. In normal knitting such as knitting and tucking, the butts 7a are guided by the first pulling-in surface 15a of the knitting cam 15 directly through the path switching cam 17 and pass through the pulling-in path (normal path). In the case of loop knitting, in the cam system 3 knitting the base side of the knitted fabric that does not form loops, the butts 7 a pass through a normal path.

The receiver presser 19 is arranged at the position B which is the initial position of needle selection, and presses the needle selection teeth 9 which have not been selected so that the knitting needles 1 do not knit. The tuck presser 21 is arranged at the position A, and the path switching presser 23 is provided on the left and right thereof. The path switching cam 17 functions so that the knitting needle 1 bites the pile yarn 31 but does not bite the binding warp yarn 33 , and is arranged on the upper side of the first pulling surface 15 a of the stitch forming cam 15 . The path switching cam 17 includes a second pull-in surface 17a for lowering the butt 7a.

The path switching cam 17 is set to the thickness of about half of the knitting cam 15 and the needle raising cam 13, and the pressing amount of the path switching pressing plate 23 to the needle butt 9a is configured as about half of that of the needle connecting pressing plate 19 and the tuck pressing plate 21 ( half-height platen). In this case, since the butts 9 a of the selector teeth 9 are pushed in half by the path switching press plate 23 , the butts 7 a of the needle jacks 7 also sink by half. As a result, the butt 7 a passes without being acted upon by the path switching cam 17 and is drawn in by the first drawing surface 15 a of the stitch forming cam 15 .

The path switching platen 23 is driven by a driving mechanism such as a solenoid, and is configured to be able to swing between an ascending non-operating position shown on the left side of the figure and a descending active position (H position) shown on the right side of the figure. Instead of the above, it may be configured such that the path switching platen 23 is controlled to come and go by a drive unit such as a solenoid, so that the active position and the non-active position can be switched. As for the yarn feeder, the preceding yarn feeder P for supplying the pile yarn 31 and the trailing yarn feeder B for supplying the binding warp yarn 33 are kept at the positions shown in the drawing with respect to the cam system and run.

Hereinafter, knitting of the terry knitted fabric by the flat knitting machine including the above-mentioned cam system 3 will be described. It is assumed that the base of the pile knitted fabric is formed by the knitting needles of FB, and the loops are formed by the knitting needles of BB.

Fig. 1 shows the state of SYS1 forming the base (first course) of the pile knitted fabric when the carriage travels to the left. The butts 7a of the selector teeth of the knitting needle 1 are set at the H position, the leading side path switching platen 23 is set at the inactive position, and the trailing side path switching platen 23 is set at the H position. On the other hand, in the cam system (not shown) of the BB that forms the pile, the knitting needle 1 is set at the H position, and the path switching platen 23 is set at the inoperative position where it rises regardless of whether it is going forward or backward.

In position I, the butts 9a of the needle selection teeth 9 from the needle selection of FB and BB to the position H are not affected by any pressing plate, so the knitting needle 1 can enter the knitting position and use the needle hook to bite the loop yarn 31 . However, in the following position II, in the cam system 3 of the FB forming the base of the knitted fabric, the butts 9a are pressed by the path-switching platen 23, so that the needles 1 are not subjected to the second pull-in of the path-switching cam 17 The role of the surface 17a and directly through. As a result, the knitting needle 1 can be maintained in approximately the same state as the position I, and the binding warp yarn 33 fed from the rear yarn feeder B can also be bitten by the needle hook. Thereafter, the first pull-in surface 15a of the subsequent stitch forming cam 15 is pulled down to form the first course to be the base of the pile knitted fabric with both the pile yarn 31 and the binding warp yarn 33 .

In contrast, in the cam system 3 of the BB that forms the loop, since the path switching press plate 23 is in the inactive position, the butt 9a is pulled down after being pulled down along the second pull-in surface 17a of the path switching cam 17, and is The first drawing-in surface 15a of the stitching cam 15 is pulled down further. That is, since the knitting needle 1 is pulled down before the binding warp yarn 33 is fed, only the loop yarn 31 is hooked on the knitting needle 1 .

Fig. 2 shows the state of SYS2 forming the base (second course) of the terry knitted fabric. SYS2 is in the same state as SYS1 except that the yarn feeder A for the additional yarn 35 is allocated to the trailing side corresponding to the continuous position of the joining warp yarn 33 in SYS1. That is, at the I position, the needle butts 9a of the selector teeth 9 selected to the H positions of FB and BB are not affected by any pressing plate, so the knitting needle 1 enters the knitting position. However, at the next position II, the butt 9a of the FB forming the base of the knitted fabric is pressed by the path switching platen 23 and passes directly without being acted upon by the second pull-in surface 17a of the path switching cam 17 . As a result, the knitting needle 1 maintains approximately the same height as the I position, so after the additional yarn 35 from the yarn feeder A is bitten by the hook, it is pulled down by the first drawing-in surface 15a to form a pile knit. The second course of the base of the object.

In contrast, the knitting needles entering the knitting position in BB are located in the inactive position due to the path switching press plate 23, so the needle butt 9a is pulled down along the second pull-in surface 17a of the stitch switching cam 17, and then is pulled down by the second pull-in surface 17a of the stitch switching cam 17. A pull-in surface 15a is pulled down further. That is, since the knitting needle 1 is pulled down before receiving the supply of the additional yarn 35, the pile formed by SYS1 is blown off from the knitting needle.

In order to perform such an operation, two cam systems are used, and SYS1 performs knitting with the pile yarn 31 and the binding warp yarn 33, and SYS2 advances and retreats the knitting needle 1 of the BB on which the pile is hooked without feeding the yarn. The knitting needle 1 removes the pile, and the knitting needle 1 of the FB can perform course knitting by the additional yarn 35, so knitting can be completed by one movement of the carriage (one course). By repeating such knitting, it is possible to knit a terry knitted fabric (single jersey) having loops on the reverse side of the base of the knitted fabric with dramatically improved productivity compared to conventional ones.

The path switching cams 17 may also be respectively provided in the front and rear cam systems 3 so that loops can be formed in the front and rear cam systems 3 . During the movement of each course of the carriage, the path switching cam 17 of the front and rear cam system 3 is activated to perform pile knitting and the path of the front and rear cam system 3 The switching cam 17 is activated to knit the course of pile knitting by interlacing, and it is also possible to knit a terry knitted fabric (double face pile) having piles on both the front and back sides of the base of the knitted fabric.

In addition, the knitting method of the present application can also be applied to the knitting of a tubular knitted fabric based on a needled pile. When loops are formed on the inner side of the tubular knitted fabric, knitting is performed in the same manner as the knitting method described above, and each of the front and rear knitted fabrics can be knitted by one movement of the carriage (one course). In the case of forming loops on the outer side of the tubular knitted fabric, using a carriage equipped with four compound cam systems that can also transfer stitches, each of the front and rear knitted fabrics can be moved by a single movement of the carriage ( 1 course) to complete the knitting.

Claims (2)

1. A knitting method of a terry knitted fabric based on a flat knitting machine,

a weft knitting machine is used which is provided with at least 2 cam systems (3, SYS1, SYS 2) respectively on front and rear carriages which reciprocate on front and rear needle beds (FB, BB) on which a plurality of knitting needles (1) are arranged,

in the cam systems (3, SYS 1) on the preceding side, a loop yarn (31) and a binding warp (33) are supplied, a first loop row which becomes a base of a loop knitted fabric is formed by a knitting needle (1) of a front needle bed (FB) and a back needle bed (FB) by loops based on the loop yarn (31) and the binding warp (33), a loop which is formed only by the loop yarn (31) is formed on the reverse side of the base by a knitting needle (1) of a back needle bed (BB), a second loop row which is continuous with the first loop row is formed by supplying an additional yarn (35) in the cam systems (3, SYS 2) on the following side, and the loop knitted fabric is knitted by repeating the above-mentioned knitting,

the method for knitting a pile fabric by a flat knitting machine is characterized in that,

each of the triangular systems (3, SYS1, SYS 2) is provided with:

a needle raising cam (13) having a raising cam surface (13 a) for raising a butt (7 a) of the knitting needle (1) and for advancing the knitting needle (1); and

a stitch cam (15) having a first drawing surface (15 a) for lowering the butt (7 a) and drawing down the knitting needle (1),

further, in each cam system (3, SYS 1) of the carriages on the side where the loop is formed among the front and rear carriages, a path switching cam (17) is provided, and the path switching cam (17) has a second drawing surface (17 a) for lowering the butt (7 a) on the leading side of the first drawing surface (15 a) of the stitch cam (15) and can switch between an active state and an inactive state,

in the preceding-side triangulation system (3, SYS 1),

two yarn feeding ports (P, B) are distributed in such a manner that a loop yarn (31) is distributed to a leading side yarn feeding port (P) and a tying warp (33) is distributed to a trailing side yarn feeding port (B), and in a cam system (3, SYS 1) for forming a loop, the path switching cam (17) is set to be in an active state, a knitting needle (1) bites only the loop yarn (31) and the loop yarn (31) in the tying warp (33), and in the cam system (3, SYS 1) for forming a base of the loop knitted fabric, a knitting needle (1) bites both the loop yarn (31) and the tying warp (33) to form a first loop row which becomes the base of the loop knitted fabric,

in the rear-side triangulation system (3, SYS 2),

a yarn feeder (A) for an additional yarn (35) is allocated to the rear row side corresponding to the position where the binder warp (33) is connected, and in the cam systems (3, SYS 2) on the side where the loop formed by the cam systems (3, SYS 1) on the front side is flicked off from the knitting needle (1), the knitting needle (1) flicks only the loop without biting the additional yarn (35) by setting the path switching cam (17) to an active state, and in the cam systems (3, SYS 2) on the side where the base of the loop knitted fabric is formed, the knitting needle (1) bites the additional yarn (35) to form a second course which becomes the base of the knitted fabric.

2. The method of knitting a pile fabric based on a weft knitting machine according to claim 1,

a path switching cam (17) is provided in each of front and rear cam systems (3, SYS 1) so that a pile can be formed in both the front and rear cam systems (3, SYS 1), and a course for performing pile knitting by interlacing the course in which pile knitting is performed by bringing the path switching cam (17) of one of the front and rear cam systems (3, SYS 1) into an active state and the course in which pile knitting is performed by bringing the path switching cam (17) of the other of the front and rear cam systems (3, SYS 1) into an active state are knitted so that a pile is formed on the front and back surfaces of a pile fabric.

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