JPH0578958A - Needle bed for flat knitting machine - Google Patents

Abstract

PURPOSE:To prevent a slider butt, etc., of a needle from falling in by laminating the second needle plate into a state wherein a groove extended following an escape groove for a transfer blade provided on the side of the first needle plate. CONSTITUTION:Each groove 28 extended following an escape groove for a transfer blade 24 is installed on the side of the first needle plate 4 inserted into a needle plate groove 3 provided in a needle bed substrate 2. The second needle plate 5 is laminated into a state so as to cover and close the groove 28. A needle 23 is guided on the outer side of the needle plate 5 to prevent a slider butt 38 from falling in the groove 28 or an opening 30.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a needle bed for a flat knitting machine.

[0002]

2. Description of the Related Art A needle bed of a flat knitting machine has a plurality of grooves formed in parallel on a needle bed substrate, a needle plate is inserted into the grooves, and a needle groove is formed between adjacent needle plates. The upper surface of the needle bed substrate has a needle groove bottom portion, and the needle is vertically moved by being guided by the needle plate. The needle plate is made by punching a plate-shaped body with a press machine, but since the outer surface of the needle plate can be processed, it creates a path region in which the transfer blade of the transfer needle reciprocates. Grooves are formed on the side surface of the needle plate by cutting after pressing. In addition, an extension groove and the like provided in series with the groove for removing the cotton wool and the like accumulated in the groove is also provided on the side surface of the needle plate. Therefore, the side surface of the needle inserted into the needle groove and the groove on the side surface of the needle plate face each other.

Recently, compound needles have been increasingly used for the purpose of increasing the knitting speed. In the case of a compound needle, opening and closing of the hook must be performed by moving the slider, and in order to operate the slider, the slider butt is brought into contact with the cam and the slider is slid by the cam. Since the slider butt is located in the middle part of the needle, in the case of the needle plate having the above-mentioned groove on the side surface, it slides when the slider butt slides with the needle body or when the needle hook is opened and closed. When doing, a situation occurred in which the user fell into the groove.

[0004]

In view of the above points, the present invention provides a needle bed in which the groove portion where the slider butt falls down is not exposed on the side surface of the needle plate forming the needle groove. To aim.

[0005]

In a needle bed having a needle groove formed by inserting a needle plate into a needle plate groove arranged in parallel with a needle bed substrate, the needle plate is formed by stacking two plates, and a first needle On the side surface of the plate, a transfer blade escape groove is provided at a portion corresponding to the path region of the transfer blade of the needle inserted in the needle groove, and a groove following the groove is formed on the other side surface of the first needle plate. Open to the upper edge of the needle plate by extending to the rear of the path of the transfer blade, and by closing the extended groove by stacking the second needle plate on the first needle plate to form one conduction hole, Moreover, the side surface of the second needle plate that is not in contact with the first needle plate was used as the guide surface of the needle.

[0006]

The extended groove following the transfer blade escape groove provided on the side surface of the first needle plate inserted into the needle plate groove provided on the needle bed substrate is opened at the upper edge of the needle plate. By closing the groove by stacking the second needle plate on the first needle plate in a state of covering the groove, by allowing the outer surface of the second needle plate and the needle to contact,
The slider butt of the needle and the like are prevented from engaging with the groove.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the implementation of the needle bed 1 of the present invention will be described below with reference to the drawings.

The needle bed 1 of the present invention is inserted in the needle plate groove 3 provided in parallel with the needle bed base plate 2 in a state where the first and second needle plates 4 and 5 are stacked in a set, A needle groove 6 is formed between the stacked sets of 4 and 5, and a groove bottom 7 is formed on the upper surface of the substrate 2 at that portion. The needle bed head 8 has a recess 10 for supporting a swing shaft of a sinker 9 and a notch 11 for locking a needle plate, which will be described later.
To provide.

The first needle plate 4 and the second needle plate 5 are inserted into the needle plate groove 3 of the needle bed substrate 2 in a stacked state of two sheets, and the outer edge of the needle plate 4 has a shape of a head part. Both are the same except the part,
Each has a sinker swing shaft insertion hole 12, a needle plate fixing notch 13, a recess 15 extending downward from the upper edge 14, step portions 16 and 17 for locking a band, a wire insertion hole 18, and the like.

On the side surface 21 of the first needle plate 4, from the head end edge 22 to the recessed portion 15, in parallel with the needle groove direction, that is, the sliding direction of the needle 23, slightly more than the transfer blade 24 of the needle 23. A wide transfer blade escape groove 25 is provided. Then, the concave portion 15 is formed in the extension direction of the transfer blade escape groove 25.
The notch 27 following the above and the extended groove 28 subsequent thereto are provided on the side surface 29 opposite to the side surface 21 provided with the transfer blade escape groove 25. The extended groove 28 slopes upward and its opening
30 is located at the upper edge 14 of the needle plate 4.

The second needle plate 5 has a thin step portion 33 around the head end edge 32 of the side surface 31, and the sinker 9 can be supported by the sinker swing shaft 35 on the step portion 33. There is. The thickness of the sinker 9 is set so as to fit in the step portion 33.

The first and second needle plates 4 and 5 are laminated and inserted into the needle plate groove 3 of the needle bed substrate 2, and the needle plate locking notch 11 of the needle bed substrate 2 and the needle plates 4 and 5 are inserted. The notches 13 for fixing the needle plate are aligned with each other, the wire 34 is inserted between them, and the tail portion (not shown) is caulked to integrally fix the two. At this time, the side surface of the needle plate 4
29 and the side surface 31 of the needle plate 5 on which the step portion 32 is formed are overlapped so that the sinker 9 is inserted into the step portion 33 and the sinker 9 is swingably supported by the sinker swing shaft 35. ..

The needle plates 4 and 5 which are laminated and stacked in the needle plate groove 3 as described above are
As described above, the needle groove 6 is provided between the adjacent needle plates 4 and 5.
The transfer blade escape groove 25 facing the needle groove 6 is formed.
Is located, and the needle 23 inserted in the needle groove 6
The transfer blade 24 slides in the transfer blade escape groove 25 when the needle 23 moves back and forth.

During this sliding, the fly dust and other floating dust adhering to the transfer blades 24 of the needle 23 pass through the concave portion 15 as the needle 23 slides, and from the opening 30 of the extended groove 28 to the outside of the needle plate. And is sucked by a suction nozzle (not shown) or blown off by the ejection of compressed air. At this time, the slider 36 of the needle 23 moves back and forth as the needle 23 moves back and forth to open and close the hook 37 of the needle 23.
The movement is performed by the slider butt 38 coming into contact with a cam of a carriage (not shown) and operating by the cam. At this time, the slider butt 38 is located near the opening 30, but the extended groove 28 near the opening 30 is covered by the side surface 31 of the needle plate 5,
38 will be guided by the opposite side 39 of the needle plate 5 and will not fall into the extended groove 28 or opening 30.

[0015]

As described in detail above, the apparatus of the present invention is arranged such that when the slider butt 38 of the needle 23 is operated, the position of the slider butt 38 is located near the opening of the extended groove following the transfer blade escape groove. Even so, since the groove and the opening are covered by the second needle plate laminated on the needle plate forming the groove and the opening, the slider is guided by the side surface of the second needle plate. The slider butt does not fall into the extended groove or the opening thereof.

[Brief description of drawings]

FIG. 1 shows a needle bed with a needle inserted therein, where A is a plan view and B is a longitudinal side view.

FIG. 2 shows a needle bed without a needle inserted therein, where A is a plan view and B is a longitudinal side view.

FIG. 3 shows a needle plate, where A is a plan view of the first needle plate, B is a side view of the first needle plate, C is a plan view of the second needle plate, and D is a second needle. It is a side view of a plate.

[Explanation of symbols]

 1 Needle Bed 2 Needle Bed Substrate 3 Needle Plate Groove 4 First Needle Plate 5 Second Needle Plate 6 Needle Groove 14 Upper Edge of Needle Plate 21, 29, 31 Needle Plate Side 23 Needle 24 Transfer Blade 25 Transfer Vane escape groove 28 Extended groove 30 Opening

Claims (1)

[Claims] 1. A needle bed in which a needle plate is formed by inserting a needle plate into a needle plate groove arranged in parallel with a needle bed substrate, wherein the needle plate is a stack of two plates, ,
A transfer blade escape groove is provided at a portion corresponding to the path region of the transfer blade of the needle inserted in the needle groove, and a groove following the groove is provided on the other side surface of the first needle plate. It extends to the rear and opens at the upper edge of the needle plate, and the extended groove is closed by stacking the second needle plate on the first needle plate to form one conduction hole, and A needle bed for a flat knitting machine with the second needle plate side that does not contact the needle plate as the needle guide surface.