JP2002327358A - Flat knitting machine equipped with movable yarn-guiding member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a movable yarn-guiding member capable of surely guiding a knitting yarn by suppressing the yarn from thrusting of a slider even if the supplied knitting yarn is a specific knitting yarn such as a tape yarn, loop yarn, or the like. SOLUTION: This flat knitting machine arranging needle plates at an even interval on a needle bed, and equipped with the needle bed installed with plural knitting needles in parallel as capable of operating for projecting and retreating by a carriage, is provided by using knitting needles mounted at the needle plate, which are compound needles capable of operating the slider with a carriage as projecting and retreating, installing a blade for extending and opening a loop at one side part of the main body of the knitting needles, arranging each yarn-guiding member as capable of slide-operating so that its guiding surface at its tip projects and retreats from the tip of the needle bed, and installing a movable yarn-guide is positioned with the guiding surface at its tip almost symmetrically to the hook parts of the knitting needles.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flatbed knitting machine, and more particularly to a flatbed knitting machine provided with a yarn guide member for guiding a knitting yarn fed to a tip portion of a needle bed to a predetermined position of a knitting needle.

[0002]

2. Description of the Related Art For example, Japanese Patent Application Laid-Open No. Hei 7-258946, which has been proposed by the present applicant, is known as this kind. In this publication, a pair of needle beds provided with a compound needle so as to be able to slide back and forth are arranged in front and rear, with the tips thereof being close to each other, and a movable sinker is rocked on the tips of the adjacent needle beds. The movable sinker is pivotally supported, and a guide for guiding the knitting yarn supplied to one of the needle plates to a predetermined position of the knitting needle above the sinker loop holding hook portion and the sinker loop holding hook portion on the movable sinker. A thread guide member having a surface is provided, and the thread guide member is operated to advance and retreat by a cam ridge of a carriage.

[0003]

However, as described in the above publication, a so-called "blade" is provided on one side of a knitting needle for expanding a loop at the time of delivery of a stitch. The knitting needle is deviated toward the needle plate provided with the thread guide member by the thickness of the blade. As a result, the distance from the hook of the knitting needle to the yarn guide member on the side where the blade is provided is long, the distance from the yarn guide member on the opposite side is short, and the loop comes out from the surface of the flat tape yarn or yarn. When a knitting yarn with a special cross-sectional shape such as a loop yarn is fed from the side where the needle of the knitting needle is provided, the supplied knitting yarn cannot be fully guided by the hook of the knitting needle and slides to close the hook. In some cases, a moving slider pierces a supplied knitting yarn. The present invention has been proposed in view of the above problems, and even if the supplied knitting yarn is a special knitting yarn such as a tape yarn or a loop yarn, the knitting yarn is prevented from being pierced by a slider, and is reliably secured by a hook of a knitting needle. The purpose is to be able to guide to.

[0004]

In order to achieve the above object, a flat knitting machine having a movable yarn guide member according to the present invention comprises:
Needle plates are arranged at regular intervals on the needle bed,
In a flat knitting machine including a needle bed containing a knitting needle that can be moved back and forth by a carriage between the needle plates, the knitting needle mounted between the needle plates is a compound needle that moves the slider back and forth with the carriage. On one side of the knitting needle body, a blade for loop expansion is provided, and two yarn guide members are provided between the needle plates,
Each thread guide member is provided so as to be slidable so that the guide surface at the distal end is protruded and retracted from the distal end of the needle bed, and the guide surface at the distal end is positioned substantially symmetrically with respect to the hook portion of the knitting needle. It is a feature.

A needle plate spacer is provided above a knitting needle slidably housed between needle plates provided at equal intervals on a needle bed, and a thread guide member is housed in the needle plate spacer on both sides near the knitting needle. The thread guide members are stored in the respective thread guide member storage sections so as to advance and retreat slidably, and the guide surface portions at the distal ends of both thread guide members are positioned substantially symmetrically with respect to the hook of the knitting needle. It is also characterized by the configuration described above.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a flat knitting machine provided with a movable yarn guide member according to the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a schematic configuration of a flat knitting machine, and reference numeral 1 in the figure generally indicates the flat knitting machine.
The needle plates 3 are arranged at equal intervals above the needle bed 2, and a knitting needle 4, a yarn guide member 5, and a yarn guide member 6 of a compound needle type shown in FIG. The needle beds 2 are arranged so that they can be individually moved in and out. The needle beds 2 are configured to face each other in a C-shape in a side view with the tips of the knitting needles 4 approaching each other.

A gap 7 is formed between the tips of the needle plates 3 and 3, and the knitting needles 4 of both needle beds 2 are formed.
Further, the yarn guide members 5 and 6 are operated to move out and back by the carriage 8. The knitting needle 4 is operated by moving a bat 24 erected at a rear portion thereof so as to advance and retreat.
As shown in FIG. 3, a needle plate 3 is erected on the upper surface of the needle bed 2, and a hook 4a at the tip of the needle plate 3 protrudes outward from the tip of the needle bed 2 and retracts between the needle plates 3. When the butt 9a of the slider 9 is operated by a slider control cam (not shown) in conjunction with the withdrawal operation of the knitting needle 4, the tip of the slider 9 is hooked. 4a is opened and closed.

Further, on one side of the knitting needle 4, there are provided hull-shaped blades 18 in plan view for expanding the loop. A sinker 10 shown in FIGS. 3 and 4 is supported on the needle plate 3, and a needle plate spacer 11 is provided above the knitting needles 4 and the thread guide members 5 and 6 mounted between the needle plates 3.3. Is provided. As shown in FIG. 5, the movable sinker 10 is formed by bending a first half portion 12a of a thin plate 12 having a thin plate shape into an arc shape, and forming a hook portion 13 for holding a sinker loop at a portion near the front end thereof. Slightly behind the sinker loop holding hook portion 13 is a front cam contact portion with which the front cam (not shown) for sinker control comes into contact.

As shown in FIGS. 3 and 4, a direct-acting thread guide member 5 and an oscillating thread guide member 6 are provided above the knitting needle 4 and below the needle plate spacer 11, respectively. The knitting needle 4 is slidably housed in the lower half. The needle plate spacer 11 is formed of a relatively thick steel plate, and has a rear end portion at which a pivotal support rod 1 supported over the needle plates 3.
5 is formed, and a dovetail-shaped engaging groove 17 is formed in the center upper surface portion.
reference).

The yarn guide members 5 and 6 are shown in FIGS.
As shown in FIG. 2, a guide surface 20 inclined obliquely downward is formed at the front end of a main body 19 formed of a relatively thin steel plate and formed into a narrow width, and a needle plate 3.3 is formed at a rear end. A sliding guide portion 22 is provided in which a groove 21 for slidingly guided by the rotating pivotal rod 15 supported in the upper portion is formed in two stages, upper and lower, and the carriage 8 is provided at the upper end of the sliding guide portion 22.
A bat 23 which is operated by a control cam (not shown) mounted on the bat 23 is formed upright.

Here, the structure of the portion where the yarn guide members 5 and 6 are provided will be described in detail with reference to FIGS. 3 and 4. FIG. First, the knitting needles 4 with the blades 18 are housed between the needle plates 3, 3. Next, the space between the needle plates 3.3 above the knitting needles 4 is closed by a needle plate spacer 11 in which guide members 5.6 are stored in storage portions 5a, 6a recessed on both lower sides. is there.

The thread guide member 6 provided above the blade 18 is bent at a portion close to the tip, and when the thread guide member 6 is mounted, as shown in FIG. Have a symmetrical position with respect to the guide surface 20 of the other yarn guide member 5 and the knitting needle 4.
When the thread guide member 6 is mounted, it is not always necessary to be exactly symmetrical with respect to the knitting needle 4, and it is sufficient that the thread guide member 6 is located substantially symmetrically.

Further, the main body 19 of the swing type thread guide member 6 is formed.
Of the needle plate spacer 11 is received by a receiving portion 11a protruding from a lower side portion of the storage portion 6a of the needle plate spacer 11, and when the yarn guide member 6 is pulled in, the guide portion of the yarn guide member 6 is guided. The surface 20 is swung upward. Further, the main body 1 of the yarn guide member 6
9 is formed with a projecting portion 19b which is partially protruded. When the thread guide member 6 advances, the front end of the projecting portion 19b is pushed down to move the guide surface 20 of the thread guide member 6 to the knitting needle 4. A cam surface 11b for approaching the hook 4a is formed on an upper side portion of the storage portion 6a of the needle plate spacer 11.

When the pressing plate 38 is inserted into the engaging grooves 17 formed on the upper surfaces of the needle plate 3 and the needle plate spacer 11, the needle plate spacer 11 is fixed. In FIG. 1, reference numeral 25 denotes a yarn feeding device. The yarn feeding device 25 includes a yarn guide rail 26 fixed above the tooth gap 7 and a plurality of slidably disposed on the yarn guide rail 26. Yarn feeders 27
, And a carriage box 28 formed in a saddle shape over both carriages 8 to selectively select and carry a plurality of yarn feeders 27.

In the flat knitting machine having the movable yarn guide member constructed as described above, when the carriage 8 is fed from the side opposite to the blade 18 of the knitting needle 4, the sinker 10 first swings. Then, the old loop is pressed down, the carriage 8 further moves, and the bat 24 of the knitting needle 4 is controlled, so that the hook 4a of the knitting needle 4 largely protrudes from the tip of the needle bed 2. Then, the knitting needle 4 that has been pulled in with the bat 24 controlled is started to descend. At this time, together with the carriage 8,
The knitting yarn is supplied to the knitting needle 4 from the traveling yarn feeder 27. The carriage 8 further moves, the bat 23 is pushed out, the thread guide members 5 and 6 project, and the guide surface 20 is brought into a state of approaching the hook 4 a of the knitting needle 4. The knitting yarn supplied to the knitting needle 4 is projected onto the guide surface 20 of the projecting yarn guide member 5.
As a result, since the yarn is guided by the hook 4a of the knitting needle 4, even a special knitting yarn such as a tape yarn or a loop yarn can be more reliably guided inside the hook 4a of the knitting needle 4.
Thereby, even if the slider 9 slides and the hook 4a is closed, it is possible to prevent the slider 9 from piercing the supplied knitting yarn.

On the other hand, when the yarn is supplied from the blade 18 side of the knitting needle 4 by the movement of the carriage 8, the knitting needle 4 described above is also used.
This is the same as the case where yarn is supplied from the opposite side of the blade 18.
However, the knitting yarn supplied to the knitting yarn 4 is guided into the hook 4 a of the knitting needle 4 by the guide surface 20 of the projecting yarn guide member 6. Even in this case, even a special knitting yarn such as a tape yarn or a loop yarn can be guided more reliably in the hook 4a of the knitting needle 4. Thereby, the slider 9
Can be prevented from stabbing the slider 9 with a thick knitting yarn such as a supplied tape yarn even if the hook 4a is closed.

Regardless of the direction in which the yarn is fed, the yarn to be fed is guided to the hook 4a of the knitting needle 4 by the respective guide surfaces 20 of the yarn guide members 5, 6 near the hook 4a of the knitting needle 4. Is done. This allows for tape yarns,
The tape yarn is tilted downward by the guide surface 20 of the yarn guide members 5 and 6 below the trajectory of the slider 9 and the hook 4
Guided inside a. When the knitting yarn to be fed is a loop yarn, the loop or the like protruding from the yarn surface is temporarily laid down by the guide surfaces 20 of the yarn guide members 5 and 6, and the loop yarn is slid by the slider 9. After being guided below the moving locus, it is guided into the hook 4a.

When the carriage 8 passes and the knitting needle 4 and the thread guide member 6 are retracted, the hollow portion 19a of the main body 19 of the oscillating thread guide member 6 is further guided by the receiving portion 11a for receiving the same. The guide surface 20 of the thread guide member 6 is retracted while being swung upward.

[0019]

As described above, the flat knitting machine having the movable yarn guide member according to the present invention is provided with the loop expanding blade on one side and the slider is operated by the carriage. A compound needle type knitting needle is mounted between the needle plates, and thread guide members are disposed on both sides of the knitting needle body so as to be slidably operated such that the guide surface at the tip comes and goes from the tip of the needle bed, Since the guide surface at the tip is positioned almost symmetrically with respect to the hook portion of the knitting needle, even when a special knitting yarn such as a tape yarn or a loop yarn is supplied from the side where the blade is provided, the yarn guide The guide surface of the member guides more reliably in the hook of the knitting needle. This eliminates the conventional accident that the slider that slides to close the hook pierces the supplied knitting yarn, thereby improving knitted stitches and improving productivity. is there.

[Brief description of the drawings]

FIG. 1 is a side view showing a schematic configuration of a flat knitting machine provided with a movable yarn guide member according to the present invention.

FIG. 2 is a side view of a knitting needle part of a flat knitting machine provided with a movable yarn guide member according to the present invention.

FIG. 3 is a cross-sectional plan view of a movable yarn guide member of a weft knitting machine provided with a movable yarn guide member according to the present invention.

FIG. 4 is a vertical sectional side view of a modified example of the movable yarn guide member of the weft knitting machine provided with the movable yarn guide member according to the present invention.

FIG. 5 is an exploded view of a movable yarn guide member of a weft knitting machine provided with the movable yarn guide member according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Flat knitting machine 2 ... Needle bed 3 ... Needle plate 4 ... Knitting needle 4a ... Hook 5.6 ... Thread guide member 5b / 6b ... Storage part 8 ... Carriage 9 Slider 20 Guide surface

Claims (2)

[Claims] 1. A flat knitting machine comprising a needle bed provided at regular intervals on a needle bed and a needle bed containing a knitting needle which can be operated by a carriage between the needle plates. The knitting needle is a compound needle for moving the slider back and forth with the carriage, a loop expanding blade is provided on one side of the knitting needle main body, and two yarn guide members are provided between the needle plates. The member is disposed so as to be slidable so that the guide surface at the distal end is retracted from the distal end of the needle bed, and the guide surface at the distal end is positioned substantially symmetrically with respect to the hook portion of the knitting needle. A flat knitting machine equipped with a movable yarn guide member. 2. A needle plate spacer is provided above a knitting needle slidably housed between needle plates provided at equal intervals on a needle bed, and the needle plate spacer is housed on both sides of the needle plate spacer near the knitting needle. The thread guide members are stored in the respective thread guide member storage sections so as to advance and retreat slidably, and the guide surface portions at the distal ends of both thread guide members are positioned substantially symmetrically with respect to the hook of the knitting needle. A flat knitting machine provided with the movable yarn guide member according to claim 1, characterized in that: