WO2007037285A1

WO2007037285A1 - Weft knitting machine having movable yarn guide

Info

Publication number: WO2007037285A1
Application number: PCT/JP2006/319204
Authority: WO
Inventors: Kenji Kitahara; Hirotoshi Yamano; Toshinori Nakamori
Original assignee: Shima Seiki Manufacturing Limited
Priority date: 2005-09-28
Filing date: 2006-09-27
Publication date: 2007-04-05
Also published as: EP1942216A4; EP1942216B1; CN101278086A; JP5179878B2; JPWO2007037285A1; EP1942216A1; CN101278086B

Abstract

A weft knitting machine, comprising a movable yarn guide capable of preventing a knitting fabric from being damaged by the catch of a yarn. Since the advancement of the movable yarn guide (1) to a tip part (5) is reduced near a position where the yarn is fed from a yarn feed port (10a), the yarn can be fed smoothly and the catch of the yarn by sliders (7b, 8b) can be prevented from occurring. Since the advancement of the movable yarn guide (1) to the tip part (5) is increased near a position where the yarn is received by hooks (7c, 8c), the yarn can be securely caught by the hooks (7c, 8c). When needle bodies (7a, 8a) are pulled into needle beds (3, 4) and stitch loops are formed by the hooks (7c, 8c) and the tip edge (6b) of a sinker (6), a guide part (1a) at the tip of the movable yarn guide is driven so as to be retreated from the tip part (5) to a position where the sinker (6) forms a sinker loop, and therefore the lower end of the guide part (1a) capable of securely forming the sinker loop at the angle determination position of the sinker (6) is extended to cover a tongue (8d) so as to prevent the yarn from being caught.

Description

Flat knitting machine with movable yarn guide

Technical field

[0001] The present invention relates to a flat knitting machine including a movable yarn guide that advances and retreats with respect to a tooth opening together with a knitting needle and guides a knitting yarn to a hook of the knitting needle.

Background art

[0002] Conventionally, in flat knitting machines, the knitting of a knitted fabric has been performed by moving the knitting needles that are facing each other across the mouth and the knitting needles to advance and retreat to the mouth and supplying the knitting yarn to the hook of the knitting needle. I'll be. The knitting yarn is supplied from the mouth with the yarn feeding force of a yarn feeding member such as a yarn feeder near the center of the mouth while the hook of the knitting needle is advanced to the back of the mouth. The knitting needle that has advanced to the mouth of the tooth catches the knitting yarn as a hook when the tooth loca is retracted and pulled into the needle bed. The knitting needle draws knitting yarn into the needle bed along a needle groove provided in the needle bed to form a stitch loop. A stitch loop is formed by a hook of a knitting needle that draws a knitting yarn into a needle bed-a one-dollar loop, and a thin force loop that is formed by a thin force that faces the mouth of an adjacent knitting needle. The size of the stitch loop to be formed is determined by the stitches each time the hook of the knitting needle is pulled into the needle bed. In determining this time, the position of the thin force facing the mouth is used as a reference.

For example, as disclosed in Japanese Patent No. 3333304, in order to reliably guide the knitting yarn to the hook, the movable yarn guide can be advanced to the vicinity of the center of the tooth opening beyond the tip of the thin force. A member is used. The movable yarn guide member retreats from the tooth mouth near the position where the knitting yarn is supplied from the yarn feeder of the yarn feeder member so as to avoid interference with the yarn feeder. When the knitting yarn is supplied from the yarn feeder, the movable yarn guide member advances to the tooth mouth and guides the knitting yarn to the hook. Even when the stitch loop is formed, the movable yarn guide member keeps advancing to the tooth opening. The shape of the lower end of the movable yarn guide member is such that even if it has advanced into the tooth opening, it does not act on the path so that the hook does not hinder the path for drawing the knitting yarn. . In Japanese Patent No. 3333304, the thin force is also a movable thin force that swings and displaces around a fulcrum provided near the tip of the needle bed. Also acts to push down. The knitting needle is divided into a needle body and a slider, and a composite needle is used that opens and closes a hook provided at the tip of the needle body with the slider. In the compound needle, the needle body and the slider are driven independently, and the slider stays near the tip of the needle bed while the hook of the needle body is advanced into the tooth opening. However, when the needle main body advances to the knit position of the tooth opening, the stitch loop that has already been formed remains as an old loop on the slider. When the new loop is hooked on the hook and the hook is pulled into the needle bed, the hook is closed with a slider and the old loop is knocked over, and the knitted fabric is knitted. For this reason, when the needle body has advanced to the tooth opening, the slider must also advance to the vicinity of the tooth opening so that the knocked-over old loop can easily escape into the tooth opening. However, if the knitting yarn before being caught by the hook is caught by the slider, it may not be caught by the hook. A movable yarn guide such as a movable guide member also acts to prevent the knitting yarn from being caught on the slider.

With a flat knitting machine, the needle beds are opposed to each other across the mouth. The front and back stitches of the stitches are knitted with one of the knitting needles of one of the needle beds. This is to make it possible to knitting an organization called knitting or rib knitting, and to make a variety of organization patterns including transfer. In recent years, a tubular knitted fabric has been knitted using needle beds on both sides.

In addition, as disclosed in, for example, Japanese Examined Patent Publication No. 7-96740, in order to knit a tubular knitted fabric with various tissue patterns, needle beds facing each other across the mouth are provided in two upper and lower stages. A flat knitting machine using four needle beds as a whole has also been developed. In Japanese Examined Patent Publication No. 7-96740, a movable thin force common to the two-stage needle bed is used, and a movable yarn guide is used. Flat knitting machines are also required to use various variable yarns, such as design twist yarns, as knitting yarns. Design twisted yarns include knot yarns where balls are made in various places, and loop yarns in which a loop is continuously brazed with a kite thread on a core yarn. Intertwined yarns that are manufactured by tying yarns with an air jet are also used. When these yarns are caught by the hook and pulled into the needle bed, the hooking force on the slider near the positioning position is larger than that of the normal twisted knitting yarn. It is easy.

In addition, as the knitting yarn, a plurality of knitting yarns may be knitted simultaneously, such as a spliced yarn knitting using two knitting yarns or a multi-threading using a large number of fine knitting yarns. Such knitting yarn When using, a fixed thin force with a depression is used as the thin force so that the position of the knitting yarn is stabilized when determining the strength. However, if there is a dent in the thin force, the slider will tend to protrude or approach the tooth opening at the dent, increasing the ease with which the slider can be hooked. The movable yarn guide member as described in Japanese Patent No. 3333304 has a knitting yarn bow I so that it does not become an obstacle when the hook draws the knitting yarn even when it is advanced to the tooth opening. Since the shape of the path is rather difficult, it does not contribute much to the prevention of the catching force on the slider. Pull the knitting yarn into the tip of the movable yarn guide member so that the knitting yarn and the tip of the slider can be separated as much as possible even when the slider does not protrude even when the slider has a dent force of fixed thin force. It may be possible to extend the route so as to cover the route. However, when the hook pulls the knitting yarn into the needle bed with a certain force, the knitting yarn is caught at the tip of the movable yarn guide member that has advanced to the tooth mouth rather than the fixed thin force, and more than the fixed thin force. A thin force loop is formed at the position where the tooth has advanced.

If part of the design twisted yarn or part of the multi-knitting knitting yarn is caught on the slider, the hooked part may be damaged, and the knitted fabric may be damaged. Furthermore, when the needle bed has two stages, such as a four-bed flat knitting machine, the advancement relationship of the slider to the tooth opening becomes more complicated than when a single stage is used, and the knitting yarn has a catching force. It becomes easy.

Disclosure of the invention

An object of the present invention is to provide a movable mechanism capable of guiding a knitting yarn to a hook with a tooth opening similarly to a conventional movable yarn guide member and preventing a knitted fabric from being damaged by a hooking force of the knitting yarn. It is to provide a flat knitting machine provided with a guide.

The present invention is a compound needle in which the knitting needle is composed of a needle body and a slider. The needle body is advanced and retracted into the tooth opening, and the supply of knitting yarn is received by the hook at the tip of the needle body. The hook is pulled to the needle bed. A movable force guide is provided on the side of the needle bed where the thin force loop is formed to form a thin force loop when it is pulled in. The needle moves forward and backward with the knitting needle to guide the knitting yarn to the hook. In a flat knitting machine equipped with!

Drive means for driving the movable yarn guide forward and backward with respect to the tooth opening;

In the vicinity of the position where the bow I starts to penetrate into the needle bed of the needle body and the knitting yarn is received by the hook, the movable yarn guide is advanced to the tooth mouth, When the needle body is pulled into the needle bed and a stitch loop is formed by the hook and the tip of the thin force, the tip of the movable yarn guide that faces the tooth opening reaches the tip of the thin force that forms the thin force loop. To retreat from the mouth,

Including drive means for driving the movable yarn guide in conjunction with the knitting needle,

The thin force is provided with a dent for collecting the knitting yarn when a plurality of knitting yarns are supplied at the tip of the mouth side that forms the thin force loop.

The shape of the tip of the movable yarn guide facing the tooth opening at least partially coincides with the shape of the tip of the thin force connected to the recess when the thin force retracts to the tip position of the thin force, and the slider of the knitting needle The flat knitting machine is provided with a movable yarn guide characterized by covering the tip of the knives.

In the present invention, the thin force faces at least the tooth mouth, and the portion forming the thin force loop is plate-shaped,

The movable yarn guide advances and retreats with respect to the oral cavity while sliding at least partially on the thin force,

The sliding contact portion between the movable yarn guide and the thin force is formed with unevenness that allows the thin force and the movable yarn guide to be fitted to each other so as to have the same thickness as the plate-like thin force as a whole. It is characterized by.

Further, in the present invention, the driving means is configured so that the amount of advance of the movable yarn guide to the tooth opening of the movable yarn guide is knitted to the hook in the vicinity of the position where the needle body advances to the tooth opening and the yarn feeding force knitting yarn is supplied. It is characterized in that it is reduced from the vicinity of the position where it is received.

In the present invention, the flat knitting machine is a four-bed flat knitting machine in which upper and lower needle beds are opposed to each other with a tooth gap therebetween.

Brief Description of Drawings

Objects, features and advantages of the present invention will become more apparent from the following detailed description and drawings.

1A to 1D are simplified side cross-sectional views showing the operation of the movable yarn guide 1 in a flat knitting machine 2 including the movable yarn guide 1 as an embodiment of the present invention.

2 shows the operation of the movable yarn guide 1 and the knitting needle 8 as shown in FIGS. 1A to 1D. It is a top view which shows the outline | summary of the cam mechanism which is a drive means to make.

FIG. 3 is an overall side cross-sectional view of the flat knitting machine 2 of FIGS. 1A to 1D in the vicinity of the mouth 5. FIG. 4 is a side sectional view showing a state in which the lower knitting needle 8 is driven in the flat knitting machine 2 of FIGS. 1A to 1D.

FIG. 5 is a side sectional view showing a state in which the upper knitting needle 7 is driven in the flat knitting machine 2 of FIGS. 1A to 1D.

FIG. 6 is a plan view showing a configuration of the upper knitting bed 3 near the tooth opening 5 in the flat knitting machine 2 of FIGS. 1A to 1D.

FIG. 7 is a plan view showing a supply state of the knitting yarn 10b to the hook 7c in correspondence with a, b, c, and d in FIG.

8A and 8B are a plan view and a side view showing the overall shape of the movable yarn guide 1 used in the flat knitting machine 2 shown in FIGS. 1A to 1D.

9A and 9B are a side view and a front view showing the overall shape of the thin force 6 used in the flat knitting machine 2 of FIGS. 1A to 1D.

FIGS. 10A and 10B are simplified side sectional views showing the reason why the thin force 6 is provided with the recess 6a and the reason why the movable yarn guide 1 is formed in the flat knitting machine 2 shown in FIGS. 1A to 1D. .

FIG. 11A and FIG. 11B are a side view and a front view showing an example of a combination of the movable yarn guide 41 and the fixed thin force 46.

12A and 12B are a side view and a front view showing an example of a combination of the movable yarn guide 51 and the fixed thin force 56. FIG.

13A and 13B are a side view and a front view showing an example of a combination of the movable yarn guide 61 and the fixed thin force 66. FIG.

14A and 14B are a side view and a front view showing an example of a combination of the movable yarn guide 71 and the fixed thin force 76. FIG.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

1A to 1D show a flat knitting provided with a movable yarn guide 1 as an embodiment of the present invention. The operation of the movable yarn guide 1 in the machine 2 is shown in side view. The flat knitting machine 2 is a four-bed flat knitting machine in which upper and lower two-stage needle beds 3 and 4 face each other with a tooth gap 5 therebetween. The needle beds 3 and 4 are arranged symmetrically in the front-rear direction with respect to the virtual center plane 5a of the tooth mouth 5 extending in the vertical direction. In the flat knitting machine 2, the front side is the side where the front needle beds 3 and 4 are arranged. Although the needle beds 3 and 4 are shown in a simplified manner, the movable yarn guide 1 is provided on the upper needle bed 3. The fixed thin force 6 is supported by the lower needle bed 4. The thin force 6 is provided with a recess 6a for accurately determining the degree with knitting yarn such as multi-threading. On the upper and lower needle beds 3 and 4, knitting needles 7 and 8, which are compound needles, are respectively provided so as to be able to advance and retreat with respect to the tooth mouth 5. Each knitting needle 7, 8 includes needle bodies 7a, 8a and sliders 7b, 8b. Hooks 7c and 8c are provided at the tips of the needle bodies 7a and 8a, respectively, and tanders 7d and 8d for opening and closing the hooks 7c and 8c are provided at the tips of the sliders 7b and 8b, respectively.

The needle beds 3 and 4 are arranged such that the longitudinal direction is perpendicular to the paper surface. A large number of needle grooves are formed along the longitudinal direction of the needle beds 3 and 4, and the knitting needles 7 and 8 are accommodated in the respective needle grooves. The carriage reciprocates along the longitudinal direction of the needle beds 3 and 4, and the cam mechanism mounted on the carriage drives the knitting needles 7 and 8 and the movable yarn guide 1 to move forward and backward. However, when the knitting needles 7 and 8 are simultaneously driven from the upper and lower needle beds 3 and 4, since the upper and lower knitting needles 7 and 8 interfere mechanically, one of the knitting needles 7 and 8 is selectively driven. The front edge where the upper and lower needle beds 3 and 4 face the tooth opening 5 is formed by substantially penetrating a wire 9 such as a piano wire in the longitudinal direction.

FIG. 1A shows a state where, for example, the knitting needle 8 is advanced from the lower needle bed 4 to the knit position. The hook 8c of the needle body 8a advances to the back of the tooth mouth 5 near the center surface 5a of the tooth mouth 5 from the position where the knitting yarn is supplied from the yarn feeder 10a of the yarn feeder 10. The yarn feeder 10 is taken to the carriage, and the cam mechanism moves the hooks 7c, 8c of the needle bodies 7a, 8a to the deepest end of the tooth mouth 5, and then the hooks 7c, 8c are relatively connected to the yarn feeder of the yarn feeder 10. The knitting needles 7 and 8 are driven so as to pass the position for receiving the knitting yarn supplied from 10a. The slider 8b, the solder 8d, advances to the tooth mouth 5 up to the vicinity of the recess 6a of the thin force 6. In the movable yarn guide 1, the shape of the guide portion la at the tip is extended to the lower side of the movable yarn guide member of Japanese Patent No. 3333304 so as to cover the tanda 8d. The movable yarn guide 1 is The id portion la can be advanced toward the tooth opening 5 side of the tip edge 6b of the thin force 6 so that the knitting yarn does not have a catching force on the tongue 8d of the slider 8b. There is no problem even if the guide part la of the movable yarn guide 1 is not advanced to the tooth opening 5, but in order to make sure that there is no catching force even if the yarn sways, etc. It is desirable to advance within the range that does not interfere with 10a.

FIG. 1B shows a state in which the cam mechanism of the carriage retracts the needle body 8a into the needle bed 4 from now on. The movement range of the hook 8c when the needle body 8a is pulled into the needle bed 4 from the tooth mouth 5 is the feed height at which the knitting yarn 10b is supplied from the yarn feeder 10a of the yarn feeder 10 shown in Fig. 1A. Including Therefore, the knitting yarn 10b can be pulled in from a state where it has not yet been pulled. If the needle body 8a is retracted into the needle bed 4, the knitting yarn 10b can be caught on the hook 7c. The movable yarn guide 1 advances most into the mouth 5 and guides the knitting yarn 10b to be pushed into the hook 8c by the guide portion la, so that the hook 8c can reliably catch the knitting yarn 10b. Further, the portion extending below the guide portion la covers the tip of the tanda 8d of the slider 8b, so that the knitting yarn 10b can be kept away from the tander 8d to prevent the knitting yarn 10b from being caught on the tanda 8d. it can.

FIG. 1C shows a state in which the needle body 8a is pulled into the needle bed 4 and the hook 8c is closed by the tanda 8d of the slider 8b. If the old loop is held by the tanda 8d, the knitting needle 8 is further pulled into the needle bed 4, so that the old loop gets over the new loop in the closed hook 8c and escapes to the tooth opening 5 to perform knockover. Since the movable yarn guide 1 has advanced to the mouth 5 until the hook 8c is closed by the tanda 8d, it is possible to continue preventing the catching force. FIG. 1D shows a state where the knitting needle 8 is drawn into the needle bed 4 and the degree is determined. The guide portion la of the movable yarn guide 1 is retracted to the determined position so as to coincide with the leading edge 6b of the thin force 6, and between the hook 8c and the leading edge 6b of the thin force 6 and the guide portion la of the movable yarn guide 1. A new stitch loop is formed.

FIG. 2 shows an outline of a cam mechanism which is a driving means for operating the movable yarn guide 1 and the knitting needle 8 as shown in FIGS. 1A to 1D. The cam mechanism is mounted on a carriage and includes a yarn guide cam 11 and a needle body cam 12. The needle body cam 12 drives the needle body 8a. Although a slider cam that drives the slider 8b is also provided, The indication is omitted. As will be described later, the yarn guide cam 11 is mounted on a carriage provided on the upper needle bed 3, and the needle body cam 12 that drives the lower knitting needle 8 is a carriage that drives the lower needle bed 4. Is provided. However, for convenience of explanation, the yarn guide cam 11 and the needle body cam 12 are shown to be provided in the same carriage.

The needle body cam 12 is arranged symmetrically with respect to the center 13 a of the Tianshan 13. On the left and right of Tianshan 13, Deshan 14 is placed. The degree 14 can change the position on the downstream side with respect to the carriage traveling direction, and pull the needle body 8a to the needle bed 4 side with the needle body drive bat 15 to the lower end of the changed slope. Can do. The needle main body drive bat 15 is provided on the jack connected to the force provided on the needle main body 8a and the needle main body 8a. The slider 8b moves in accordance with the position of the slider driving bat 16 provided on the jack directly connected to the slider 8b and the jack to be connected. However, as described above, the slider cam is not shown. The movable yarn guide 1 drives the yarn guide driving bat 17 with the yarn guide force 11 so as to advance and retreat with respect to the mouthpiece 5.

The positions of the needle main body drive butt 15 and slider drive bat 16 in the figure, 15a, 16a; 15b, 16b; 15c, 16c; 15d, 16d are shown in FIGS. 1A, IB, 1C, and ID, respectively. Corresponds to the state shown. The yarn guide driving bat 17 also shows positions 17a, 17b, 17c, and 17d as positions corresponding to FIGS. 1A, 1B, 1C, and 1D, respectively. However, the yarn guide drive bat 17 corresponds to the movable yarn guide 1 adjacent to the knitting needle 8 on both sides. In the yarn guide driving bat 17c corresponding to the position shown in FIG. 1C, when the carriage travels in the direction of the right side of the right side of the figure, the right side that is driven first starts to retract into the needle bed 4 first. Position. In the positions corresponding to FIG. 1B and FIG. 1C, the positions of the yarn guide driving bats 17b and 17c are most advanced to the mouth side. On the other hand, as shown in FIG. 1A, the advancement of the yarn guide drive butt 17a is slightly suppressed in the vicinity of the position where the knitting yarn is supplied from the yarn feeder 10a.

FIG. 3 shows an overall cross-sectional configuration of the flat knitting machine 2 near the mouth 5. In each needle bed 3, 4, two dollar plates 18, 19 are provided, and a needle groove for accommodating the knitting needles 7, 8 is formed between the needle plates 18, 19. The upper and lower needle beds 3 and 4 are connected by extending the upper part of the lower dollar plate 19. In accordance with the description of FIGS. The lid drive bat 16 is shown with respect to the lower knitting needle 8, but it goes without saying that it is also provided on the upper knitting needle 7.

As described above, in the flat knitting machine 2, the needle bodies 7a and 8a and the sliders 7b and 8b are moved forward and backward from the needle beds 3 and 4 to the tooth mouth 5, and the tip 5 of the needle bodies 7a and 8a is hooked at the tooth mouth 5. 7c and 8c are fed with the knitting yarn from the yarn feeder 10a, and the hooks 7c and 8c of the needle bodies 7a and 8a are pulled into the needle beds 3 and 4 to form a stitch loop. A thin force 6 for forming a thin force loop is provided at the tips of the needle beds 3 and 4. The movable yarn guide 1 moves forward and backward with the knitting needles 7 and 8 to the mouth 5 to guide the knitting yarn to the hooks 7c and 8c. The flat knitting machine 2 provided with the movable yarn guide 1 includes a yarn guide cam 11 as a driving means for driving the movable yarn guide 1 forward and backward with respect to the tooth opening 5 in conjunction with the knitting needles 7 and 8. In the vicinity of the position where the needle body 7a, 8a is most advanced to the tooth mouth 5 and the knitting yarn is supplied from the yarn feeder 10a, the driving means makes the advance of the movable yarn guide 1 to the tooth mouth 5 shallower or advances. There is no problem in the supply of the knitting yarn. If the tip la of the movable yarn guide 1 advances into the tooth opening 5 rather than the tip of the sliders 7b and 8b, the catching force on the sliders 7b and 8b can be prevented. In the vicinity of the position where the needle bodies 7a, 8a are pulled into the needle beds 3, 4 and the hooks 7c, 8c receive the knitting yarn, the advancement of the movable yarn guide 1 to the mouth 5 is deepened. The hooks 7c and 8c of the needle bodies 7a and 8a can be surely caught. When the needle body 7a, 8a is pulled into the needle bed 3, 4, and the stitch loop is formed by the hooks 7c, 8c and the leading edge 6b of the thin force 6, the movable yarn guide 1 is connected to the mouth 5 Since the guide portion la at the tip facing the arm is driven so that the thin force 6 moves backward from the tooth mouth 5 to the position where the thin force loop is formed, the thin force loop is surely formed at the position where the thin force 6 is determined. Can do.

4 and 5 show a state in which the lower knitting needle 8 and the upper knitting needle 7 are driven, respectively. The lower knitting needle 8 is driven as shown in FIGS. 1A to 1D and FIG. The upper knitting needle 7 is also driven in the same manner as the lower knitting needle 8. Since the recess 6a is provided in the thin force 6, the knitting yarn can be stably held at the determined position with respect to both the upper knitting needle 7 and the lower knitting needle 8. In order to use multi-threaded knitting yarns, a recess 6a is provided in the thin force 6! / However, if the movable yarn guide 1 is retracted and retracted from the tooth opening 5, the tip side facing the tooth opening 5 will be removed. Since the shape of the guide la coincides with the shape of the thin force 6 at least partly so that the shape of the guide la is continuous with the recess 6a, the stitch loops have the same conditions for a plurality of knitting yarn Can be formed. Even if the sliders 7b and 8b protrude into the mouth 5 due to the recess 6a of the thin force 6, the movable yarn guide 1 can prevent the slider 7b and 8b from being caught.

FIG. 6 shows a plan configuration of the upper needle bed 3 near the mouth 5. The knitting needle 7 is accommodated in the needle groove 20 between the needle plates 18. At the tip of the needle bed 3 facing the tooth opening 5, a tip edge 6b of the thin force 6 supported by the lower needle bed and extending is arranged. Both sides of the thin force 6 are supported by the needle support 21. The movable yarn guide 1 advances to the tooth opening 5 while being guided by a groove-shaped passage 6c formed at the tip of the guide portion la in the middle of the thickness of the thin force 6. That is, the thin force 6 faces at least the tooth opening 5, and the portion forming the thin force loop is plate-shaped, and the movable yarn guide 1 has the tooth opening while sliding at least partially on the thin force 6. The movable yarn guide 1 is accommodated in the thin force 6 so that the sliding contact portion between the movable yarn guide 1 and the thin force 6 has the same thickness as the plate-like thin force 6 as a whole. A passage 6c is formed. At the position where the thin force 6 is determined, the movable yarn guide 1 and the thin force 6 are integrated to form a thin loop, which acts as a thin force 6 having a uniform thickness as a whole. A thin force loop similar to the case of using can be formed. In particular, if the movable yarn guide 1 and the thin force 6 are arranged on both sides of the knitting needles 7 and 8 at equal intervals, the carriage can be used when the knitted fabric is knitted by running the carriage along the needle beds 3 and 4. The difference depending on the direction of travel can be eliminated. The flat knitting machine 2 has a pitch called 3-8G, which arranges 3-8 knitting needles per 25.4 mm (1 inch) so that a sufficient thickness can be obtained for the thin force 6. H is preferred.

FIG. 7 shows the supply state of the knitting yarn 10b to the hook 7c in [a], [b], [c], and [d], corresponding to a, b, c, and d in FIG. [e] shows the determination state. As described above, at the positions [b] and [c], the guide portion la of the movable yarn guide 1 is in the state of being most advanced to the tooth opening 5. However, when the lower end of the guide portion la of the movable yarn guide 1 does not extend downward as in the movable yarn guide member of Japanese Patent No. 3333304, the knitting yarn 10b is attached to the slider 7b as shown by a two-dot chain line. There is a risk of getting caught on the Tanda 7d. In the guide portion la of the movable yarn guide 1, the knitting yarn 10b can be kept away from the tanda 7d as shown by the solid line. 8A and 8B show the overall shape of the movable yarn guide 1. FIG. 8A is a plan view, and FIG. 8B is a side view. The tip portion including the guide portion la of the movable yarn guide 1 is formed to be thin so as to be accommodated in the passage 6c of the thin force 6 shown in FIG. 9A and 9B show the overall shape of the thin force 6. Fig. 9A is a side view and Fig. 9B is a front view. A recess 6a is provided on the side where the thin force 6 faces the tooth mouth 5, and a groove serving as a passage 6c is formed in the upper half of the recess 6a. A hole 6d through which the wire 9 is passed is formed below the recess 6a. Near the lower end of the thin force 6, a hole 6 e for connecting to the lower needle bed 4 is formed. The thin force 6 is positioned at the groove 6f.

FIG. 10A and FIG. 10B show the reason why the recess 6a is provided in the thin force 6 and the reason why the movable yarn guide 1 is formed. FIG. 10A shows an example in which a depression 6a is provided in the thin force 6 and a conventional movable yarn guide 22 such as a movable yarn guide member disclosed in Japanese Patent No. 3333304 is used instead of the movable yarn guide 1. By the recess 6a of the thin force 6, a plurality of knitting yarns 23 such as multi-threads can be gathered at a desired position and the loop length can be made uniform. However, when the tanda 8d of the slider 8b advances or approaches the tooth opening 5, the knitting yarn 23 may be caught on the tip of the tanda 8d. The movable yarn guide 1 of the present embodiment extends the lower end side of the guide portion la downward as shown by the phantom line, and as shown in FIGS. 1A to 1C, the guide portion la rather than the tanda 8d of the slider 8b. Advances into the mouth 5 and covers it. In addition, as shown in FIG. 10B, with the fixed thin force 24 without any depression, the position of the knitting yarn 23 such as multi-threading is easily dispersed, and the length of the loop formed with the hook 8c cannot be determined.

11A-14B show examples of combinations of movable yarn guides and fixed thin forces. In each figure, as in FIGS. 8A and 8B, FIGS. 11A, 12A, 13A, and 14A are shown in a side view, and FIGS. 11B, 12B, 13B, and 14B are shown in a front view, respectively.

FIG. 11A and FIG. 11B show a configuration in which the guide portion 41a at the tip of the movable yarn guide 41 is projected and retracted from the passage 46c that opens in the middle of the thickness of the thin force 46 to the tooth opening 5. The thin force 46 can be obtained by bonding two sheets together to form the passage 46c in the middle of the thickness. Fig. 12A and Fig. 12B are provided with a groove 51a at the lower end of the movable yarn guide 51. A configuration is shown in which a ridge 56a is provided at the upper end of 56, and the groove 51a and the ridge 56a are joined together. FIG. 13A and FIG. 13B show a configuration in which the tip end portion 61a of the movable yarn guide 61 is made thin, and a step 66a is formed on the side of the thin force 66 for combination. Even if the thin force 66 is arranged on both sides of each knitting needle at equal intervals, the movable yarn guide 61 cannot be arranged at equal intervals, but the processing is easy.

FIG. 14A and FIG. 14B show a configuration in which the convex yarn 71a is provided at the lower end of the movable yarn guide 71, the groove 76a is provided at the upper end of the thin force 76, and the convex stripe 71a and the groove 76a are held together.

In the configurations shown in FIGS. 12A and 12B to 14A and 14B, the partial force at which the movable yarn guides 51, 6 1, 71 and the thin forces 56, 66, and 76 squeeze acts as a whole to determine the thin force. At this time, it is necessary to manufacture with high precision so as not to cause gaps and the like so that fine knitting yarns such as multi-threads are not squeezed.

In the above embodiment, as a flat knitting machine, a four-bed flat knitting machine 2 in which two upper and lower needle beds 3 and 4 face each other with a tooth gap 5 therebetween is described. That is, in a flatbed knitting machine 2 with four beds, sliders 7b and 8b are respectively provided on the upper and lower needle beds 3 and 4, and even if the sliders 7b and 8b protrude near the tooth mouth 5, the movable yarn guide 1 It is possible to knitted fabrics that prevent catching force and are not damaged. However, even when the needle bed is a single stage, if the movable yarn guide 1 is used, it is possible to prevent the knitting yarn from being caught on the slider and to prevent the knitted fabric from being damaged.

The present invention can be implemented in various other forms without departing from the spirit or main characteristic power thereof. Therefore, the above-described embodiment is merely an example in all respects, and the scope of the present invention is shown in the claims, and is not restricted by the text of the specification. Further, all modifications and changes belonging to the scope of claims are within the scope of the present invention.

Industrial applicability

According to the present invention, a flat knitting machine including a movable yarn guide includes driving means for driving the movable yarn guide forward and backward with respect to the tooth opening in conjunction with the knitting needle. In the vicinity of the position where the needle body starts to be pulled into the needle bed and the hook receives the knitting yarn, the driving means advances the movable yarn guide to the mouth, so that the knitting yarn is guided and caught by the hook of the needle body. Can do. When the needle body is pulled into the needle bed and a stitch loop is formed between the hook and the tip of the thin force The drive means drives the tip of the movable yarn guide so that the thin force retracts from the mouth to the position where the thin force loop forms, so that the thin force loop is reliably formed at the position where the thin force is determined. be able to. For example, even if there is a recess in the thin force to use multi-threaded knitting yarn, if the retractable tooth guide is retracted by retracting the movable yarn guide, the shape on the tip side facing the tooth opening will continue to the recess. Since at least partly matches the shape of the tip of the mouth side of the thin force, stitch loops can be formed on a plurality of knitting yarns under the same conditions. Even if the thin force depression causes the slider to protrude into the tooth mouth, or even if it does not protrude, it can approach the knitting yarn and easily catch it, so the shape force of the movable yarn guide S covers the tip of the slider, so the knitting yarn By separating the tip force of the slider, it is possible to prevent the hooking force. Further, according to the present invention, the movable yarn guide and the thin force are combined to form a thin force loop, which acts as a plate-like thin force having a uniform thickness as a whole. A thin force loop similar to that used can be formed. The sliding portion between the thin force and the movable yarn guide has irregularities that fit together, so the movable yarn guide is mechanically supported by the thin force, and the movable yarn guide moves back and forth to the mouth. Can be guided. In particular, if the thin force and the movable yarn guide are arranged at equal intervals on both sides of each knitting needle, when the knitted fabric is knitted by running the carriage along the needle bed, the difference due to the traveling direction of the carriage is eliminated. Can be eliminated.

Further, according to the present invention, the driving means does not allow the movable yarn guide to advance to the tooth opening or to increase the advance amount in the vicinity of the position where the needle body advances to the tooth opening and the yarn supply force knitting yarn is supplied. Therefore, it is possible to avoid interference between the yarn feeder and the movable yarn guide so that the supply of the knitting yarn is not hindered. Since the tip shape of the movable yarn guide covers the tip of the slider, it is possible to prevent the knitting yarn from being caught on the slider if it is advanced beyond the slider.

In addition, according to the present invention, a four-bed flat knitting machine is provided with a slider on each of two upper and lower needle beds. It is possible to prevent knitting and to form a knitted fabric without scratches.

Claims

The scope of the claims

[1] The knitting needle is a compound needle consisting of a needle body and a slider. The needle body is advanced and retracted into the mouth, and the yarn is supplied to the hook at the tip of the loca needle body. The hook is pulled into the needle bed. A thin force for forming a thin force loop when forming a stitch loop is provided on the mouth side of the needle bed, and a movable yarn guide is provided to guide the knitting yarn to the hook by advancing and retreating with the knitting needle. In flat knitting machines,

In the vicinity of the position where the knitting yarn is received by the hook after the bow I starts to penetrate into the needle bed of the needle body

, Move the movable yarn guide to the mouth,

When the needle body is pulled into the needle bed and a stitch loop is formed by the hook and the tip of the thin force, the tip of the movable yarn guide that faces the tooth opening reaches the tip of the thin force that forms the thin force loop. To retreat from the mouth,

The shape of the tip of the movable yarn guide facing the tooth opening at least partially coincides with the shape of the tip of the thin force connected to the recess when the thin force retracts to the tip position of the thin force, and the slider of the knitting needle A flat knitting machine provided with a movable yarn guide characterized by covering the tip of the yarn.

[2] The thin force faces at least the tooth mouth, and the portion forming the thin force loop is plate-shaped,

The sliding contact portion between the movable yarn guide and the thin force is formed with unevenness that allows the thin force and the movable yarn guide to be fitted to each other so as to have the same thickness as the plate-like thin force as a whole. A flat knitting machine comprising the movable yarn guide according to claim 1.

[3] In the vicinity of the position where the needle body advances into the mouth and the knitting yarn is supplied from the yarn feeder, the driving means sends the knitting yarn to the hook of the amount of advance of the movable yarn guide to the mouth. The movable yarn guide according to claim 1, wherein the movable yarn guide is reduced from the vicinity of the receiving position. Flat knitting machine equipped with.

The movable machine according to any one of claims 1 to 3, wherein the flat knitting machine is a four-bed flat knitting machine in which two upper and lower needle beds are opposed to each other with a tooth gap therebetween. A flat knitting machine with a yarn guide.