JPH0559645A - Two-stage bed flat knitting machine - Google Patents

Abstract

PURPOSE:To uniformly knit a mesh loop in a simplified device by arranging a sinker jack, knock over bit and upper needle in a specific state. CONSTITUTION:A sinker jack 43 for oscillating a sinker 42 and knock over bit 44 are slidably fitted to a head needle plate 11 so as to be able to freely advance and retreat. An upper needle 38 is put on the knock over bit and the upper needle 38 is held using a sinker spacer 41 and the head needle plate. A retreat mechanism of the upper needle bed and pulling-down device of knitted fabric is made unnecessary.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-stage bed flat knitting machine in which an upper needle bed is further provided on a lower needle bed with their heads approaching each other.

[0002]

2. Description of the Related Art A two-stage bed flat knitting machine is known in which an upper needle bed is positioned above a lower needle bed, and the heads of the needle beds are brought close to each other to knit a knitted fabric by needles of either upper or lower needle beds. Has been.

In this type of knitting machine, in order to avoid a situation in which the lower needle abuts against the head of the upper needle bed when the lower needle for knitting the knitted fabric by the needle of the lower needle bed is raised, Some beds have a bed retreat mechanism, but this makes the device complicated due to the retreat mechanism, and it becomes difficult to always position the needle bed accurately at a predetermined position when the needle bed is advanced, and the stitch loop There is also a possibility that it may cause a loss of uniformity.

There has also been a situation in which a space for installing a knitted fabric holding device such as a movable sinker for holding the knitted fabric cannot be obtained.

[0005]

SUMMARY OF THE INVENTION In view of the above points, the present invention provides a two-tiered bed flat knitting machine having two upper and lower tiers without the needles of the upper and lower needle beds moving the needle beds. A bunk bed that can move up and down without interfering with each other, and can knit the loops formed by both upper and lower needles in a uniform size even without having a knitting fabric lowering device. The purpose is to obtain a flat knitting machine.

[0006]

In a two-stage bed flat knitting machine in which an upper needle bed is provided above a lower needle bed with their heads close to each other, an upper needle bed and a lower needle bed in a head needle plate of the upper needle bed are provided. A fulcrum is provided at an intermediate position with respect to the needle bed, and the sinker is swingably supported between positions where the knitted fabric loop formed by the needles of the upper needle bed and the knitted fabric loop formed by the needles of the lower needle bed can be engaged with each other. , A sinker jack for swinging the sinker is engaged with the sinker, and the sinker jack and the knockover bit are slidably fitted to the head needle plate so as to be movable back and forth, and an upper needle is mounted on the knockover bit. Place it on top, and insert the sinker spacer and head needle plate into the upper needle. It was.

[0007]

Operation: The upper needle mounted on the knock over bit slidably supported by the needle plate of the upper needle bed so as to move forward and backward is repeatedly moved forward and backward by the cam of the carriage via the needle jack. Separately from this, when the knitting by the upper needle is completed, the knockover bit is also retracted through the butt of the knockover bit and the advancing / retreating means such as a cam on the carriage that abuts against the butt. Due to the backward movement of the knock-over bit, the head portion of the upper needle bed is free of any member that may be an obstacle even if the lower needle rises.

When the sinker positioned at the head of the needle plate and swingably supported between the lower needle bed and the upper needle bed is knitted by the lower needle, the sinker jack is used. When the knitting is carried out by the action of the carriage cam via the knitting with the upper needle, the knitting yarn is looped up at the knitting fabric forming edge of the end edge of the sinker.
When the size of the loop is kept constant and the sinker is moved downward, the knitted fabric is pressed by the stitch holding projections provided below the knitted fabric forming edge of the sinker.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the embodiment will be described with reference to the drawings.

The knitting machine of the present invention is a 4-bed type knitting machine in which the upper needle bed 2 is further supported on the upper portion of the lower needle bed 1 provided with the tops facing each other in a chevron shape. It is bilaterally symmetric with respect to a center line X-X passing through the tooth gap part where the heads 1A and 2A are concentrated, and FIG. 1 shows only the left half of the center line X-X.

In the illustrated example, the upper needle bed 2 is supported by the lower needle plate 3A of the lower needle bed 1, but the upper and lower needle beds 2 and 1 may use separate needle plates. The lower needle bed base plate 4 is provided with a plurality of needle plate grooves 5 as in the conventional needle bed, and the lower needle plates 3A and 3B are fitted into the grooves 5, and the needle bed base plate 4 and the lower needle plate 3 are fitted.
A wire 9 is passed through the notches 7 and 8 provided in each of A and 3B to fix them. As shown in FIG. 3A, the lower needle plate 3A is a head needle including a lower needle guide portion 10 extending from the head portion to the tail portion of the lower needle bed 1 and an extension portion extending above the head portion of the lower needle guide portion 10. The plate 11 and the upper needle bed substrate support plate 12 located on the upper edge of the needle plate 3A behind the plate 11.
A plate-shaped body consisting of a fixed beam insertion hole 15 for inserting a fixed beam 14 of an upper needle bed fixing member 13 described later, a sinker support hole 16, a needle blade guide groove 17, and wire insertion holes 18A, 18B, 18C. ,, etc. are included. A support surface 20 for supporting the upper needle bed substrate 19 (FIG. 4) is provided on the upper needle bed substrate support plate 12 in an inclined manner, and the upper needle bed substrate support plate 12 and the head on the extension of the support surface 20. A wedge-shaped notch 21 is provided at the boundary with the needle plate 11 of the section. The lower needle plate 3B shown in FIG. 3B has a structure in which the upper needle bed substrate supporting plate 12 of the extension portion extending above the head of the lower needle plate 3A is removed.

The lower needle plates 3A and 3B are alternately inserted or a plurality of 3A and 3B are alternately inserted into the needle plate groove 5 of the lower needle bed substrate 4, and the wires 9 are formed in the notches 7 and 8 as described above. The lower needle bed substrate 4 and the needle plates 3A and 3B are fixed by passing them through, and a needle groove 22 is formed between the lower needle plates 3A and 3B. A lower needle 23 is slidably inserted into the needle groove 22.

The upper needle bed 2 is fixed to the lower needle bed 1 by a fixing member 13 by the following means. In the illustrated example, the head 2A of the upper needle bed 2 shares a needle plate with the head 1A of the lower needle bed 1, and the head needle plate 11 is the needle plate of the head 2A of the upper needle bed 2. The fixing member 13
Is an engaging means composed of a wedge-shaped head 24 and a wedge-shaped notch 25 for engaging the upper needle bed substrate 19 and the upper needle bed substrate supporting plate 12 of the lower needle plate 3A,
It comprises a locking and fixing means including a locking member 26.

The upper needle bed substrate 19 is placed on the supporting surface 20 of the upper needle bed substrate supporting plate 12 of the lower needle plate 3A, and the wedge-shaped head 24 at the tip of the upper needle bed substrate 19 is attached to the lower needle plate 3A. Abut the wedge-shaped notch 21. The upper needle bed substrate 19, a notch 25 is provided at a position facing the end of the upper needle bed substrate support plate 12, and a wedge-shaped end of one end of a belt-shaped locking member 26 extending in the knitting width direction of the knitting machine. The part 27 is engaged with the notch 25, and the other end is in contact with the end 28 of the upper needle bed substrate support plate 12 of the lower needle plate 3A.
Then, the fixed beam insertion hole of the lower needle plate 3A
A bolt 29 is screwed between the fixed beam 14 extending in the knitting width direction and inserted into the locking member 26 and the locking member 26, and the bolt 29 is tightened to form the wedge-shaped head 24 and the notch 25 of the upper needle bed substrate 19. The dovetail portion 30 between them is gripped by the wedge-shaped notch 21 of the lower needle plate 3A and the wedge-shaped end portion 27 of the locking member 26, and the upper needle bed substrate 19 is fixed on the lower needle plate 3A.

FIG. 4 shows the upper needle bed substrate 19 and FIG. 5 shows the upper needle plate 31. In the upper needle bed substrate 19, needle plate grooves 32 are provided at the same pitch and in the same phase as the lower needle bed substrate 4, and the upper needle plate 31 is inserted.

A wire 36 is inserted between a notch 34 provided on the upper part of the head of the upper needle bed substrate 19 and a notch 35 provided on the lower part of the head of the upper needle plate 31 to fix them. An upper needle groove 37 is formed between adjacent upper needle plates 31, 31, and an upper needle 38 is slidably inserted.

The head needle plates 11 of the lower needle plates 3A and 3B have exactly the same shape. Then, on the head needle plate 11, sinker spacer 41, sinker 42, sinker jack 43, knockover bit
44 etc. are provided. The details will be described with reference to FIGS. 2, 3, and 6 to 13.

The sinker spacer 41 is attached to the step portion 45 provided on the head needle plate 11 of the lower needle plates 3A and 3B.
Position. The sinker spacer 41 (FIG. 12) has an inverted U-shaped wire insertion notch 46 at the lower part of the tail, an engaging recess 48 for inserting a band 47 at the upper edge, and a lower part at the edge extending below the head. It has a bending piece 49 for pressing the needle 23.
Then, the sinker spacer 41 includes the wire insertion notch 46 of the tail portion and the enlarged step portion 50 of the head needle plate 11 (see FIG.
6), the lower needle plates 3A and 3B are bound together to engage with the wire 51 inserted through the wire insertion hole 18B, and the recessed portion 52 at the lower part of the head is engaged with the wire 53 similar to the wire 51. They are combined and fixed to the head needle plate 11.

By fixing the sinker spacer 41 to the head needle plate 11, the head needle plate 11 is provided between the sinker spacer 41 and the top of the head needle plate 11.
A gap is created by the top step portion 54 (C in FIG. 3) of the sinker jack 43, and the sinker jack 43 is inserted therein (FIG. 7). The step 54
Is provided up to the tip of the head of the head needle plate 11, and a sinker 42 is fitted to the tip of the head as will be described later. As shown in FIG. 10, the sinker jack 43 is formed of an elongated plate-like member, and the thin portion near the tail is bent in a slightly V-shape to move the sinker jack 43 to the step portion 54.
It is configured so that sliding resistance is not generated when it is inserted into the gap due to the above, and a butt 55 is formed in the upper part and a downward engaging recessed part 56 is formed in the head part. The engagement concave portion 56 is engaged with the engagement convex portion 57 provided on the upper edge of the sinker 42.
Like the sinker jack 43, the sinker 42 is also inserted in the same gap by the step 54 at the head end of the head needle plate 11 as described above, is provided at the head of the head needle plate 11, and is provided at the top step. The swinger shaft portion 58 provided in the tail portion is fitted into the sinker support hole 16 formed in contact with the step portion at the tip of the head portion that is continuous with 54, and the sinker 42 is swingably supported. The sinker 42 has angular portions 59, 6 in the vertical direction of the front edge.
0, a knitted fabric forming edge 61 and a stitch holding protrusion 62 are formed therebetween.

On the side surface of the head needle plate 11 opposite to the step portion 45, there is provided a guide groove 64 into which the transfer blade 63 of the upper needle 38 enters and slides.
A knockover bit 44 is slidably provided on the 64 side while being placed on the wires 51 and 53. Knock over bit 44
Has a butt 66 on the tail of a flat shank 65 on which the upper needle 38 is placed, and a square loop holder 67 on the head.
have. The hook 68 of the upper needle 38 is located above the loop retainer 67. Knock over bit
A cam of a carriage (not shown) comes into contact with the butt 66 of 44 so that the butt 66 can advance and retreat along the upper needle 38. Butt 66 of the knockover bit 44,
The butt 55 and the like of the sinker jack 43 are fitted in the gaps of the head needle plates 11 in which comb-teeth-shaped needle plate spacers 69 are arranged in parallel so that their positions can be accurately held, and the distances are accurately maintained.

When the knitting operation of the knitting machine of the present invention is performed, the needles of the beds 1 and 2 are operated by cams (not shown) on the carriages corresponding to the lower needle bed 1 and the upper needle bed 2, respectively. At the same time, in the upper needle bed 2, the knockover bit 44 together with the upper needle 38 is moved according to the operation of the lower needle 23.
Of the sinker jack 43 as shown in FIG. 14 to prevent the lower needle 22 from moving forwards and backwards, thereby preventing the lower needle 22 from moving forward and backward.
Is operated to turn the sinker 42 up and down.

The vertical turning motion of the sinker 42 is performed in conjunction with the movement of the yarn feeder 70, as shown in FIG. Yarn feeder
When 70 feeds the knitting yarn 71 to the lower needle 23, the yarn feeder 70 must be brought close to the hook of the lower needle 23. ing. Then, after the lower needle 23 receiving the yarn is lowered (A in FIG. 15), the sinker jack 43
To move the sinker 42 downward (B in FIG. 15).
As a result, the knitting yarn 71 hangs on the knitting fabric forming edge 61 of the sinker 42, and as shown in FIG. 15B, the size of the loop 72 formed between the knitting fabric forming edge 61 and the hook of the lower needle 23 is reduced. Stipulated. A new loop is formed, and the stitch holding protrusion of the sinker 42 is moved downward by the sinker 42.
62 engages with and pushes down the sinker loop 74 of the knitted fabric 73 that has already been knitted. The order of movement of the needles 23, 38, sinker jack 43, sinker 42, and knockover bit 44 at the time of knitting the knitted fabric by the lower needle 23 is shown by A, B, C in FIG. 16, A, B in FIG. It is C.

Similarly, the swinging state of the sinker 42 at the time of knitting with the upper needle 38 is shown in FIG. 18, and the order of movement of the needle, sinker jack, and knockover bit is A in FIG.
B, C, and A, B, and C in FIG. 20, when knitting with the upper needle 38, a loop 75 is formed by the knitting yarn 71 drawn into the hook of the upper needle 38, and the existing knitting that follows the loop 75 is formed. The ground 76 contacts the loop retainer 67 provided at the tip of the knocked-over bit 44 that has advanced, and prevents the lower knitted fabric from being drawn into the hook as the needle retracts.

[0024]

EFFECT OF THE INVENTION In a two-stage bed flat knitting machine in which the upper needle beds are provided above the lower needle beds with their heads close to each other, the upper needle bed and the lower needle bed in the head needle plate of the upper needle bed are A fulcrum is provided at an intermediate position to swingably support the sinker between positions where it can be engaged with the knitted fabric loop formed by the needles of the upper needle bed and the knitted fabric loop formed by the needles of the lower needle bed. Engage the sinker jack for swinging with the sinker,
The sinker jack and the knockover bit are slidably fitted in the head needle plate so as to be able to move forward and backward, the upper needle is placed on the knockover bit, and the upper needle is held by the sinker spacer and the head needle plate. , The upper and lower needle beds can move up and down without interfering with each other without moving the needle beds, and even without the knitting fabric lowering device, the loop formed by the upper and lower needle beds The size can be unified and knitted.

[Brief description of drawings]

FIG. 1 is an overall schematic side view showing only one side of a center line.

FIG. 2 shows a lower needle bed substrate, where A is a vertical side view and B is an enlarged plan view of the head.

FIG. 3 is a side view and a sectional view of a lower needle plate,
A is an example having an upper needle bed substrate support plate,
B is an example not having an upper needle bed substrate support plate, and C is a sectional view taken along line CC of A.

FIG. 4 shows an upper needle bed substrate, where A is a vertical side view and B is an enlarged plan view of the head.

FIG. 5A is a side view of the upper needle plate, and B is a front view of the same.

6 is a sectional view taken along line VI-VI in FIG.

7 is a sectional view taken along line VII-VII in FIG.

8 is a cross-sectional view taken along the line VIII-VIII in FIG.

9 is a sectional view taken along line IX-IX in FIG.

FIG. 10 shows a sinker jack, where A is a side view,
B is a bottom view.

FIG. 11 is a side view of a sinker jack.

FIG. 12 is a side view of a sinker spacer.

FIG. 13 shows a knockover bit, where A is a plan view, B is a side view, and C is a rear view.

FIG. 14 is a vertical cross-sectional side view of the head portion of the needle bed showing the swinging state of the sinker, where A is the upward swing of the sinker and B is the downward swing motion of the sinker.

FIG. 15 is a vertical cross-sectional side view of the needle bed head showing the relationship between the sinker, the needle, and the knitted loop when knitting with the needle of the lower needle bed, A is the upper turn of the sinker, and B is the lower part of the sinker. Shows when turning.

16A, 16B and 16C are side views sequentially showing the movements of the sinker jack, the sinker, the knockover bit, and the upper and lower needles when knitting with the needles of the lower needle bed.

17A, 17B and 17C are side views sequentially showing the operation following FIG. 16C.

FIG. 18 is a vertical cross-sectional side view of the needle bed head showing the relationship between the sinker, the needle, and the knitted loop when knitting with the needle of the upper needle bed, where A is the upper turn of the sinker and B is the lower part of the sinker. Shows when turning.

19A, 19B, and 19C are side views sequentially showing the movements of the sinker jack, sinker, knockover bit, and upper and lower needles when knitting with the needles of the upper needle bed.

20A, 20B, and 20C are side views sequentially showing the operation following FIG. 16C.

[Explanation of symbols]

 1 Lower Needle Bed 1A Lower Needle Bed Head 2 Upper Needle Bed 2A Upper Needle Bed Head 11 Head Needle Plate 16 Sinker Support Hole 38 Upper Needle 42 Sinker 43 Sinker Jack 44 Knockover Bit

Claims (1)

[Claims] 1. A two-stage bed flat knitting machine in which an upper needle bed is provided above a lower needle bed with their heads close to each other, and the upper needle bed and the lower needle bed in a head needle plate of the upper needle bed are A fulcrum is provided at an intermediate position to swingably support the sinker between positions where it can be engaged with the knitted fabric loop formed by the needles of the upper needle bed and the knitted fabric loop formed by the needles of the lower needle bed. Engage the sinker jack for swinging with the sinker,
The sinker jack and the knockover bit are slidably fitted to the head needle plate so as to be movable back and forth, the upper needle is placed on the knockover bit, and the upper needle is held by the sinker spacer and the head needle plate. Bunk bed flat knitting machine.