JPH11107144A - Upper part bed supporting mechanism in weft knitting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To support an upper part bed in an upper direction of a needle bed by keeping an accurate position easily without complicating the structure of a supporting mechanism for supporting the upper part bed arranged with an upper part knitting member in the upper direction. SOLUTION: This upper part bed supporting mechanism formed at the extended part of a needle blade 14A is provided by installing a shaft 46A for supporting the upper part bed in parallel to needle beds 2A, 2B, and supporting the upper part bed with the shaft 46A directly or indirectly in a weft knitting machine supporting the upper part bed in the upper side of at least either one of the front and rear needle beds 2A, 2B, by the upper part bed supporting part formed at the extended part formed by extending a part of the needle blade 14A in an upper direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat knitting machine having an upper bed disposed above a needle bed.

[0002]

2. Description of the Related Art An upper bed is provided above a needle bed in which a plurality of needle grooves are arranged and knitting needles are arranged to be able to advance and retreat in each needle groove. Flat knitting machines are known.

[0003] The applicant has proposed a two-stage bed flat knitting machine capable of supporting an upper needle bed without bending in a two-stage needle bed which is vertically stacked. This is disclosed in Japanese Unexamined Patent Publication No. Hei 4-370252. In a needle bed in which a plurality of rows of needle plate grooves are provided in a lower needle bed, and a lower needle plate is inserted into the needle plate groove to form a needle groove between the lower needle plates. A part of the needle plate is extended upward, the extended portion is used as an upper needle bed support member, a fixing member for locking the upper needle bed substrate is provided on the upper needle bed support member, and the upper needle bed substrate is provided by the upper needle bed support member. Is disclosed in a two-stage bed flat knitting machine in which is supported by a lower needle bed.

[0004] Further, in a flat knitting machine in which a transfer jack bed, an upper needle bed, and the like are provided above a lower needle bed, the applicant may bend the needle bed or the transfer jack bed provided above the needle bed. We have proposed a flat knitting machine that can easily and quickly replace the knitting needles of the lower needle bed, while being able to support the knitting needles securely and securely. (Japanese Patent Registration No. 2628128
This means that a plurality of rows of needle plate grooves are provided on the upper surface of the needle bed, the needle plates are inserted into the respective needle plate grooves, the needle grooves are formed as needle grooves, and a part of a predetermined needle plate forming the needle grooves. Is extended upward to be a support member of the upper needle bed or the transfer jack bed, and the upper needle bed or the transfer jack bed is configured to be slidable in the longitudinal direction with respect to the lower needle bed in the support member. . A support member for the upper needle bed, and an upper needle bed or a transfer jack bed, wherein the upper needle bed or the transfer jack bed has a dovetail-shaped protrusion, and the other has a dovetail-shaped groove which fits into the dovetail-shaped protrusion, and When attaching and detaching the jack bed, when the upper needle bed or the transfer jack bed is pulled upward with the dovetail projections aligned with the detachable space formed in the dovetail groove, the upper needle bed or the transfer jack is removed. The bed is configured to be detachable from the support member.

[0005]

However, in the flat knitting machine described above, the structure of the support mechanism of the upper bed is complicated.
It is not easy to attach and detach the upper bed. Therefore, time is required for assembling the flat knitting machine, performing maintenance such as cleaning the needle bed, or replacing the knitting needle.

In view of the above-described problems, the present invention aims to facilitate and versatile knitting, and does not complicate the structure of a support mechanism for supporting an upper bed on which an upper knitting member is disposed above a needle bed. It is another object of the present invention to provide a flat knitting machine capable of maintaining an accurate position of an upper bed above a needle bed and easily supporting the upper bed.

It is another object of the present invention to provide a flat knitting machine in which an upper bed is supported above a needle bed in which maintenance work such as cleaning of a needle bed or the like can be easily performed.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, a needle plate is inserted into each of a plurality of rows of needle plate grooves, and the knitting needles can be moved forward and backward with each needle plate having a needle groove. Along with disposing the needle beds to be arranged in a pair with the front and rear ends facing each other,
A flat knit supporting an upper bed in which an upper knitting member is disposed at an upper bed supporting portion formed at an extension of a part of the needle plate above and above at least one of the front and rear needle beds so as to advance and retreat. On the machine,
A shaft for supporting the upper bed is attached to the upper bed support in parallel with the needle bed, and the shaft directly or indirectly supports the upper bed.

Preferably, an upper bed supporting surface for supporting a lower surface of the upper bed is formed on an upper surface of the needle plate, and the upper bed is positioned.

[0010] Preferably, the upper bed is slidably supported by the shaft, and is moved by upper bed driving means for moving the upper bed in the longitudinal direction of the needle bed.

Preferably, the upper bed supports the needle bed so as to be rotatable in the front-rear direction about the shaft as a rotation axis.

[0012] Preferably, a stitch locked with a knitting needle of a front or rear needle bed is received above one of the front and rear needle beds arranged with a pair of front and rear end portions facing each other. A transfer jack bed in which a transfer jack for transferring the stitch to a knitting needle of a preceding or / and subsequent needle bed is movably supported in the longitudinal direction, and a stitch of a knitted fabric is provided above the other needle bed. Supports the loop presser bed on which the loop presser that holds down is placed.

[0013]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic front view of a flat knitting machine provided with an upper bed support mechanism of the present invention, and FIG. 2 is a vertical cross-section of the flat knitting machine in the flat knitting machine of FIG. The figure is shown. FIG. 3 is a schematic side view of the flat knitting machine. The flat knitting machine 1 in the present embodiment includes a pair of front and rear needle beds 2.
A and 2B are arranged in an inverted V-shape with their tip portions facing each other, and the front and rear needle beds 2A and 2B are needle-shaped by driving means (not shown) including a motor, a driving screw shaft, a slider, and the like. It is configured to be movable in the bed longitudinal direction. A transfer jack bed 6 in which a transfer jack 4 is provided is disposed above the front needle bed 2A.
Above B, a loop presser bed 10 on which a loop presser 8 is disposed is arranged. In describing each part of the flat knitting machine 1, the following description will be made assuming that the tooth opening side of the needle bed 2 in the reciprocating direction of the needle bed 2 is the front, the other is the rear, and the direction perpendicular to the needle bed surface is the vertical direction. .

In the needle bed 2, a plurality of needle plate grooves 12 are cut in parallel at equal intervals, a needle plate 14 is inserted into each of the needle plate grooves 12, and a concave notch 16 provided on the lower edge of the needle plate is formed. The wire 20 is passed through the concave notch 18 with the concave notch 18 provided on the upper surface of the needle bed 2, and the rear end of the needle bed 2 is crimped to fix them together. As a result, a needle groove 22 is formed between two adjacent needle plates 14, and the needle body 24 and the slider 26 are inserted into the needle groove so as to be able to advance and retreat. Hereinafter, the needle main body 24, the slider 26 and the like are collectively referred to as a knitting needle 28. On the upper surface of the knitting needle 28, bats 30a, 30b for a needle are formed.
Are urged to protrude outside the needle groove. In the present embodiment, the compound needle including the needle main body 24 and the slider 26 is inserted into the needle groove 22, but this may be a latch type knitting needle. A dovetail groove 32 is formed over the entire needle plate 14 above the knitting needle 28 housed in the needle groove 22, and a dovetail holder 34 having a trapezoidal cross section is fitted into the dovetail groove 32, whereby the knitting needle 28 is From falling off. A carriage 36 is reciprocated on the upper surface of the needle bed 2 by belt driving means (not shown),
The knitting cam 38 provided at 6 moves the knitting needle 28 forward and backward, and the forward / backward moving cam 40 moves the transfer jack 4 and the loop presser 8 forward and backward.

The needle plate 14A shown in FIG. 4 is inserted into a predetermined needle plate groove among the plurality of needle plate grooves 12A cut in the front needle bed 2A. The needle plate 14A has its head portion extended upward, and the extended portion serves as an upper bed support portion 42. A circular through hole 44 is formed in the upper bed support portion 42, and the through hole 44 is formed.
A shaft 46A having a circular cross section for supporting the transfer jack bed 6 is inserted through the needle bed in the longitudinal direction. Other needle plate groove 1
2B, a needle plate 14B having no extension with its head extended upward is inserted. The needle plate 14A having the extension and the needle plate 14B having no extension are connected to the needle plate groove 12A of the needle bed 2A. , One or a plurality of them are alternately inserted. An upper bed support surface 48 for supporting the transfer jack bed 6 is formed on the upper surface of the distal end portion of each of the needle plates 14A and 14B.

Next, support of the transfer jack bed 6 above the needle bed 2A will be described. FIG. 5 is a side view of a support block 50 that supports the transfer jack bed 6 on the shaft 46A, and FIG.
It is a side view of a shaft fixing member 52 for fixing to 4A. The support block 50 has a mounting surface 51 for the transfer jack bed 6 formed on the upper surface thereof, and a through hole 54 through which a shaft 46A that slidably supports the transfer jack bed 6 is inserted. The support block 50 is attached to the lower surface of the transfer jack bed 6 at a plurality of predetermined locations by bolts 56 in the longitudinal direction.

The shaft fixing member 52 is for fixing the shaft 46A inserted into the upper bed support portion 42 of the needle plate 14A so as not to rotate or move left and right. Is formed. At the rear end of the shaft fixing member 52, a protruding piece 60 that protrudes left and right in the longitudinal direction of the needle bed is formed.
When fixing the shaft 46A to the needle plate 14A, the shaft 46A is inserted into the through hole 58 with the left and right projecting pieces 60 abutting against the rear end 62 of the upper bed support portion of the needle plate 14A for fixing the shaft 46A. The shaft 46A is tightened by the screw 64. The shaft fixing member 52 fixed to the shaft 46A prevents the projecting piece 60 formed on the shaft fixing member 52 from contacting the rear end 62 of the upper bed support member of the needle plate 14A, thereby preventing the rotation of the shaft 46A. By inserting 52 between upper bed support portions 42 of needle plate 14A, lateral movement of shaft 46A can be prevented. Thereby, the shaft 46A inserted through the upper bed support portion 42 of the needle plate 14A can be fixed. By attaching a plurality of shaft fixing members 52 to predetermined positions of the shaft 46A, the shaft 46A can be reliably fixed.

In order to support the transfer jack bed 6 above the needle bed 2A, first, a support block 50 is attached to the lower surface of the transfer jack bed 6 at a plurality of predetermined locations in the longitudinal direction by bolts 56. The support block 50 is attached to the transfer jack bed 6 by the needle plates 14A, 14A.
When placed on the upper bed support surface 48 formed in B,
The upper bed support portion 4 is set so that the support block 50 does not contact the upper bed support portion 42 of the needle plate 14A.
2 is located at the position of the needle plate 14B having no. In this embodiment, since the transfer jack bed 6 is moved laterally by the driving means 66 as described later, the mounting position of the support block 50 is determined in consideration of the amount of movement.

The transfer jack bed 6 to which the support block 50 is attached at a predetermined position is placed on the upper bed support surface 48 of the needle plates 14A and 14B.
Then, the shaft fixing member 52 is moved between the upper bed supporting portions 42 of the two needle plates 14A having the extension portions whose heads are extended upward in the longitudinal direction of the needle bed formed at the rear end of the shaft fixing member 52. The shaft fixing member 5 so that the protruding piece 60 protruding from
Insert 2. Then, the shaft 46A is inserted from the end of the needle bed 2A into the through holes 44, 58, 54 formed in the needle plate 14A, the shaft fixing member 52 and the support block 50, respectively. Needle bed 2
All needle plates 1 provided in the longitudinal direction of A
After inserting the shaft 46A into the 4A, the shaft fixing member 52, and the through holes 44, 58, 54 of the support block 50,
The shaft 46A is fixed by tightening the shaft 46A to the shaft fixing member 52 with the screw 64.

As described above, the transfer jack bed 6 is supported on the needle plate 14A by the shaft 46A, and the transfer jack bed 6 is supported on the upper bed supporting surface 48 of the needle plates 14A and 14B.
Since it is positioned on the upper side, the transfer jack bed 6, which is the upper bed, can be easily mounted above the needle bed 2A without requiring a complicated mechanism.

A jack groove 70 is provided on the upper surface of the transfer jack bed 6, and the transfer jack 4 is inserted into the jack groove 70 so as to be able to advance and retreat.
Reference numerals 72a and 72b denote straps for preventing the transfer jack 4 from dropping out of the jack groove. At the distal end of the transfer jack 4, a hook-shaped stitch engaging portion 74 for engaging a stitch at the time of transfer is formed, and the other end has a base end portion 76 as a selected portion. A suction surface 78 is formed on the lower edge of the portion 76. An elastic arm 82 that branches off from the shank 80 and extends rearward below the shank 80 at the rear side of the stitch locking portion 74 is provided to urge the control butt 84 projecting from the transfer jack 4 upward. A projection 86 is formed on the upper edge of the base end portion 76, and is pressed by a guide cam (not shown) so that the suction surface 78 is brought into contact with the suction surface 90A of the selection actuator 88A provided on the carriage 36A. For the transfer jack 4 sucked on the suction surface 90A of the selection actuator 88A, whether or not the transfer jack 4 is moved forward and backward by the selection actuator 88A is selected. The selected transfer jack 4 is released from suction with the suction surface 90A of the selected actuator 88A, and the control butt 84 protrudes from the surface of the transfer jack bed 6, and is advanced by the advance / retreat cam 40A provided on the carriage 36A.

The end of the transfer jack bed 6 is connected to a moving operation bracket 92 by bolts 94, and the moving operation bracket 92 is connected to a motor 96 and a belt 9.
8, a driving means 66 comprising a driving screw shaft 100, a slider 102 and the like is operated to move in the lateral direction. The movement of the transfer jack bed 6 by the driving means 66 causes the support block 50 to be attached to the transfer jack bed 6 with bolts 56.
Slides on the shaft 46A, and the lower surface of the transfer jack bed 6 is attached to the needle plates 14A and 14B.
Slides on the upper bed support surface 48.

In the present embodiment, the cross section of the shaft 46A is circular, and the through holes 44 and 54 formed in the needle plate 14A and the support block 50 are also circular.
The tip of the transfer jack bed 6 can be rotated in the front-rear direction of the needle bed 2A with A as a rotation axis. Usually, since the transfer jack bed 6 has its end connected to the movement operation bracket 92 by a bolt 94, the transfer jack bed 6 is fixed so as not to rotate. By releasing the connection with the bracket 92 by removing the bolt 94, the tip of the transfer jack bed 6 can be rotated in the front-rear direction about the shaft 46A as a rotation axis. FIG. 7 shows a state in which the transfer jack bed 6 is not rotated, and FIG.
It shows a state in which it is rotated backward with 6A as a rotation axis. By rotating the distal end portion of the transfer jack bed 6 backward, maintenance such as cleaning of the needle bed 2A can be easily performed, and replacement work of the knitting needle 28 accommodated in the needle groove 22 of the needle bed 2A is also easy. In a short time. The shaft 4
The cross-sectional shape of 6A is not limited to a circle, but may be a polygon.

Above the rear needle bed 2B, a loop presser bed 10 in which a loop presser 8 for holding a stitch loop of the knitted knitted fabric is supported. Since the support of the loop presser bed 10 is the same as the support of the transfer jack bed 6 above the front needle bed 2A described above, the description is omitted here.

The loop presser bed 10 has a large number of loop presser grooves 1 such that the loop presser 8 is located between the knitting needles 28 arranged on the needle bed 2B.
The loop pressers 8 are provided at the same pitch as the needle grooves 22, and the loop presser 8 is inserted into each loop presser groove 104 so as to be able to advance and retreat. Reference numerals 106a and 106b denote bands for preventing the loop presser 8 from dropping out of the loop presser groove 104. The loop presser 8 has a loop holding part 1
05 is formed, and the other end has a base end portion 108 as a selected portion. At the lower end of the base end portion 108, a suctioned surface 110 is formed. A shank 110 is provided on the rear side of the loop
A control butt 114 protruding from the loop presser 8 is provided.
Is biased upward. When the loop presser 8 is at the advanced position, the position control surface 116 formed on the upper edge of the shank faces the metal band 106a, and the loop presser 105 swings downward.

A protrusion 118 is formed on the upper edge of the base end portion 108, and is pressed by a guide cam (not shown) so that the suction surface 110B comes into contact with the suction surface 90B of the selection actuator 88B provided on the carriage 36B. Let it. With respect to the loop presser 8 sucked on the suction surface 90B of the selection actuator 88B, whether or not the loop presser 8 is advanced by the selection actuator 88B is selected. The selected loop presser 8 is released from suction with the suction surface 90B of the selected actuator 88B, the control butt 114 projects from the surface of the loop presser bed 10, and the carriage 3
6B is advanced by an advance / retreat cam 40B provided on 6B.

Similarly to the transfer jack bed 6 supported above the front needle bed 2A, the loop presser bed 10 supported above the rear needle bed 2B also has a shaft 46B as a rotation axis and the tip of the loop presser bed 10 is needled. The bed 2B is rotatable in the front-rear direction. Transfer Jack Bed 6
In the case of (1), the end of the transfer jack bed 6 is connected to the moving operation bracket 92 with a bolt 94 in order to move it in the lateral direction, but since the loop presser bed 10 is not moved in the lateral direction, the end of the loop presser bed 10 is not moved. The portion is connected to the end of the needle bed 2B by a fixing bracket 120 by a bolt 122. When performing maintenance such as cleaning of the needle bed 2B or replacement of the knitting needle 28 accommodated in the needle groove 22 of the needle bed 2B, the bolt 122 is removed to disconnect the needle bed 2B from the needle bed 2B. The bed 10 can be rotated in the front-rear direction of the needle bed 2B using the shaft 46B as a rotation axis.

In the above embodiment, one end of the transfer jack bed is connected to the moving operation bracket by a bolt in order to move the transfer jack bed in the lateral direction. The transfer jack bed may be moved by connecting the shaft and the moving operation bracket, and moving the shaft in the lateral direction.

In the above embodiment, since the cross-sectional shape of the shaft is circular and the through holes formed in the needle plate and the support block are also circular, the transfer jack bed and the loop presser bed as the upper beds are arranged in the front-back direction of the needle bed. When it is not necessary to rotate the upper bed, the cross-sectional shape of the shaft and the through holes formed in the needle plate and the support block are made to be polygons such as squares to support the upper bed. Is also good.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and can be practiced without departing from the gist of the present invention. Not even.

[0031]

As described above, according to the present invention, the shaft for supporting the upper bed is mounted on the upper bed support in parallel with the needle bed, and the upper bed is directly or indirectly supported on the shaft. The upper bed can be easily supported above the needle bed without complicating the structure of the upper bed support mechanism for supporting the bed above the needle bed.

In addition, an upper bed supporting surface for supporting the lower surface of the upper bed is formed on the upper surface of the needle plate to position the upper bed. Therefore, the upper bed is supported while maintaining a precise position above the needle bed. can do.

The upper bed is slidably supported by a shaft and is moved by upper bed driving means. Thus, the upper bed can be supported so as to be movable in the lateral direction above the needle bed.

The upper bed is supported so as to be rotatable in the front-rear direction of the needle bed about a shaft as a rotation axis.
By rotating the upper bed, maintenance of the needle bed or replacement of the knitting needle can be easily performed.

Further, a transfer jack bed having a transfer jack is supported above one of the needle beds of the front and rear needle beds, and a loop presser bed having a loop presser is supported above the other needle bed. Sex and diversity.

[Brief description of the drawings]

FIG. 1 is a schematic front view of a flat knitting machine provided with an upper bed support mechanism of the present invention.

FIG. 2 is a vertical cross-sectional view of the flat knitting machine in the flat knitting machine of FIG. 1 as viewed from a line XX.

FIG. 3 is a schematic side view of the flat knitting machine of FIG. 1;

FIG. 4 is a side view of a needle plate having an extension part whose head is extended upward.

FIG. 5 is a side view of the support block.

FIG. 6 is a side view of a shaft fixing member.

FIG. 7 is a view showing a state where the transfer jack bed is not rotated.

FIG. 8 is a view showing a state where a transfer jack bed is rotated.

[Explanation of symbols]

1 ... flat knitting machine, 2 ... needle bed, 4 ... transfer jack, 6 ... transfer jack bed,
8: Loop presser, 10: Loop presser bed, 12: Needle plate groove, 14: Needle plate, 28: Knitting needle, 34: Needle holder, 36: Carriage, 42 ... Upper bed support member, 44.
... shaft, 50 ... support block, 52 ... shaft fixing member, 54 ... through hole, 56 ... bolt, 58 ... through hole, 60 ... projecting piece, 64 ... .Screws, 66... Driving means,
88 ... selection actuator, 92 ... movement work bracket, 94 ... bolt, 96 ... motor, 98 ... belt, 100 ... drive screw shaft, 120 ... fixed bracket , 122 ... bolt

Claims (5)

[Claims] 1. A needle bed in which a needle plate is inserted into each of a plurality of rows of needle plate grooves, and a knitting needle is arranged between the needle plates so that the knitting needles can be freely moved forward and backward with a pair of front and rear end portions facing each other. At the same time, above at least one of the front and rear needle beds,
In a flat knitting machine that supports an upper bed in which an upper knitting member is arranged to be able to advance and retreat on an upper bed support part that forms a part of the needle plate extending upward, an upper bed is provided on the upper bed support part. An upper bed support mechanism in a flat knitting machine, wherein a shaft for supporting is mounted in parallel with the needle bed, and the shaft directly or indirectly supports the upper bed. 2. The horizontal bed according to claim 1, wherein an upper bed supporting surface for supporting a lower surface of the upper bed is formed on an upper surface of the needle plate, and the upper bed is positioned. Upper bed support mechanism in knitting machine. 3. The apparatus according to claim 1, wherein the upper bed is slidably supported by the shaft, and is moved by an upper bed driving means for moving the upper bed in a longitudinal direction of the needle bed. Or an upper bed support mechanism in the flatbed knitting machine according to 2. 4. The flatbed knitting machine according to claim 1, wherein the upper bed is rotatably supported in a front-rear direction of the needle bed with the shaft as a rotation axis. Upper bed support mechanism. 5. A stitch locked on a knitting needle of a front or rear needle bed is received above one needle bed of the front and rear needle beds disposed with a pair of front and rear end portions facing each other, A transfer jack bed in which a transfer jack for transferring a stitch to a knitting needle of a preceding or / and subsequent needle bed is movably supported in a longitudinal direction, and a loop for holding a stitch of a knitted knitted fabric above the other needle bed. The upper bed support mechanism in the flat knitting machine according to any one of claims 1 to 4, wherein the loop presser bed on which the presser is arranged is supported.