JPH10292251A - Needle holder in weft knitting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the switching operation between the needle-holding position and the needle-releasing position by supporting the needle holder so it may be vertically liftable between the needle-holding position and the needle- releasing position, press. SOLUTION: A part of the needle plate 34 is extended upward and at the extended part, the needle-holding part 3 that presses the knitting needle 20 arranged to the needle grooves 12, 36 with the needle presser 28 is supported so that the needle may be vertically liftable between the needle-holding position that prevents the knitting needle 20 arranged to the needle grooves 12, 36 from floating-on the needle beds 2, 4 and the needle-releasing position releasing the knitting needle from the needle grooves 12, 36.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a needle holding device for a flat knitting machine for preventing a knitting needle arranged in a needle groove of a needle bed from floating.

[0002]

2. Description of the Related Art In a conventional flat knitting machine, knitting needles (needle, jack,
In order to prevent the floating of the slider 103, etc., a dovetail groove 104 provided in the needle bed 100 so as to cross the needle groove 102 is fitted with a dovetail holder 106 having a trapezoidal cross section (FIG. 12). Such a needle holder is called a band or a palate.

[0003] When replacing a knitting needle damaged during knitting with a new knitting needle, the needle holder fitted to the needle bed by dovetail fitting is removed from the end of the dovetail groove of the needle bed using a drawing jig or the like. By pulling out, the knitting needle is released from the needle groove, and the damaged knitting needle can be replaced.

[0004] Further, the applicant of the present invention has a needle holding device that can release the needle holder from the dovetail groove by slightly moving the needle holder fitted into the dovetail groove provided in the needle bed to the left or right. (Japanese Utility Model Application Laid-Open No. 56-91395).

This is a needle holding device in which a dovetail holder having a trapezoidal cross section is dovetailed in a dovetail groove provided in a needle groove of a needle bed. The side edge of the needle holder is provided with a cutout having a size capable of fitting the protruding portion of the dovetail groove. Then, place the needle holder in the dovetail groove provided on the upper surface of the needle bed,
The protruding part of the needle holder and the notch part of the dovetail groove, the notch part of the needle holder and the protruding part of the dovetail groove are dropped from above,
A needle holding device that can fix the needle holder in the dovetail groove by sliding the needle holder to the left or right and engaging the needle holder and the projecting portions of the dovetail groove with each other is disclosed.

[0006]

However, in the needle holding device described above, in the case of replacing a damaged knitting needle, for example, in order to prevent the knitting needle from floating, a dovetail is inserted into the needle bed in order to prevent the knitting needle from floating. The needle retainer fitted by the needle bed must be pulled out from the end of the dovetail groove provided in the needle bed. Even if the needle holder is divided into several sections in the longitudinal direction of the needle bed, it is not easy to pull out the dovetailed needle holder from the dovetail groove.

In Japanese Utility Model Laid-Open Publication No. 56-91395, the needle holder can be released from the dovetail groove by slightly moving the needle holder to the left or right. Similarly, the projection of the needle holder is dovetail-fitted into the dovetail groove provided on the upper surface of the needle bed, and the needle holder fitted by the dovetail fitting is slightly moved left or right.
It's not easy.

Further, when the needle presser presses the knitting needle at a position close to the tooth gap of the needle bed, which is the knitting location, the advance and retreat of the knitting needle during knitting can be stabilized, and a high-quality knitted fabric can be formed. . However, in a flat knitting machine of a type in which an upper knitting needle, a transfer jack, a sinker, or the like is further supported as an upper knitting member above a needle bed disposed with a pair of front and rear ends abutting, a lower needle bed is provided. The needle holder provided in the upper part of the needle holder is hidden by the upper bed, and there is also a problem with the space for inserting the jig for pulling out the needle holder. In the needle holding device to be fitted, it is more difficult to pull out or detach the needle holder from the dovetail groove, and it takes time to replace the knitting needle.

In view of the above-mentioned problems, the present invention provides a needle holding device for a flat knitting machine capable of easily releasing a knitting needle when replacing a knitting needle arranged in a needle groove of a needle bed. The purpose is to:

[0010]

In order to solve the above problems, the present invention provides a needle bed substrate having a plurality of rows of needle plate grooves, and inserting a needle plate into each needle plate groove. A needle groove is formed between the plates, and a needle bed for arranging a knitting needle to be movable forward and backward is disposed in each needle groove in a state where the front and rear ends of the needle beds are abutted, and at least one of the front and rear needle beds In a flat knitting machine of a type in which a part of the needle plate inserted into the needle plate groove is extended upward to directly or indirectly support an upper knitting needle or an upper knitting member such as a transfer jack or a sinker, A needle push of a knitting needle arranged in a direction intersecting with the knitting needle arranged in the needle groove at an extension part of which a part is extended upward. The needle holding portion is vertically movably supported at a needle holding position arranged in the needle groove of the needle bed for preventing the knitting needle from floating and a needle releasing position for releasing the knitting needle from the needle groove. And

[0011] Preferably, an operation section for performing an operation for vertically moving a needle press section of the needle press supported by the needle press support section is provided at an end of the needle bed.

Preferably, the needle holder is rotatably supported by the needle holder supporting portion, and the rotation of the needle holder moves the needle holder of the needle holder up and down between a needle holding position and a needle releasing position. Move.

[0013]

Embodiments of the present invention will be described with reference to the drawings. The flat knitting machine 1 according to the present embodiment has a state in which the upper needle bed 4 is further abutted with the upper needle bed 4 above the lower needle bed 2 supported on a frame (not shown) in a state in which the front and rear abutments are abutted. Is a so-called four-bed flat knitting machine, which is symmetrical with respect to a center line XX passing through a tooth portion where the top of each needle bed is concentrated.

FIG. 1 is a plan view of a needle bed of a flat knitting machine 1 provided with a needle holding device of the present invention. FIG. 2 and FIG.
It is sectional drawing of the needle beds 2 and 4 of the flat knitting machine 1 of FIG. A plurality of needle plate grooves 8 are provided in the lower needle bed substrate 6 in parallel at equal intervals, and a lower needle plate 10 is inserted into each needle plate groove 8, and two adjacent lower needle plates 10, 10 are provided. The gap is defined as a needle groove 12. In the needle groove 12, a needle 14, a needle jack 16 and the like are arranged so as to be able to advance and retreat.

The needle jack 16 has a leading end fitted into the tail of the needle 14, and a bat 18a for needle repositioning on the center upper surface.
A bat 18a is formed, and the bats 18a and 18b are urged to protrude outside the needle groove 12. Bats 18a, 18
b may be provided on the needle 14 instead of the needle jack 16. Hereinafter, the needle 14, the needle jack 16, and the like are collectively referred to as a knitting needle 20.

In the needle plate groove 8 of the lower needle bed substrate 6, the lower needle plate 10 shown in FIG.
Insert The lower needle plate 10 extends its head upward, forms a support surface 26 that directly supports the upper needle bed substrate 24 as an upper needle bed substrate support portion 23 on the extension portion 22, and will be described later. A through hole is provided as a needle holder support 30 for rotatably supporting a needle holder 28 for preventing the knitting needle 20 from floating.

In this embodiment, the lower needle bed 2
The lower needle plate 10 shown in FIG. 4 is inserted into all the needle plate grooves 8 of FIG. You may make it insert the lower needle plate which does not have the extension part 22 which extended the part upward.

The upper needle bed substrate 24 is connected to the upper needle bed substrate support 23 of the lower needle plate 10.
Is placed on the support surface 26. Upper needle bed board 2
4, a needle plate groove 32 is provided at the same pitch and the same phase as the lower needle bed substrate 6, and an upper needle plate 34 is inserted. An upper needle groove 36 is formed between two adjacent upper needle plates 34, 34, and a needle groove 36 is formed.
Inside, a knitting needle 38 is arranged so as to be able to advance and retreat. In the present embodiment, the lower needle plate 10 indirectly supports the knitting needle 38 as the upper knitting member by the upper needle bed 4, but the upper knitting member may be directly supported by the lower needle plate 10. Absent.

The knitting needles 2 arranged in the needle grooves 12, 36 of the lower needle bed 2 and the upper needle bed 4, respectively.
Numerals 0 and 38 are operated by a cam provided on a carriage (not shown) that reciprocates on the upper surfaces of the needle beds 2 and 4.

Next, the needle holding device will be described. In the present embodiment, the needle groove 1 of the lower needle bed 2
The needle holder 28 provided to prevent the knitting needle 20 arranged in the second from floating is formed in a half-moon cross section having a cutout portion 40 in which the side surface of the round bar is cut out in the longitudinal direction. The needle holder 39 of the needle holder 28 is used.

The needle presser 28 traverses the knitting needle 20 above the knitting needle 20 arranged in the needle groove 12 of the lower needle bed 2 and moves the bat 18 provided on the upper surface of the knitting needle 20 to the most advanced position in knitting the knitted fabric, for example, at the time of transfer. Of the lower needle plate 1 in front of the most advanced position of the bat 18 in FIG.
It is supported by the needle holding support 30 provided on the extension portion 22 of the zero.

The needle holder 30 is formed as a circular through-hole for inserting a needle holder 28 of a round bar having a half-moon cross section into the extension 22 of the lower needle plate 10 and rotatably supporting the needle holder. The needle holder 28 is rotated by a rotational displacement.
The needle holding portion 39 is moved up and down to support the needle holding position and the needle release position so as to be switched. Needle holder support 3
No. 0 may be any shape as long as it can penetrate the needle holder 28 and support it rotatably, and the through hole may not be circular.

The needle holding position means that the notch 40 of the needle holder 28 does not face the upper surface of the knitting needle 20 below the needle holder 28,
In the state of FIG. 2 in which the needle pressing portion 39 of the needle pressing 28 is located on the upper surface of the knitting needle 20, the needle pressing portion 39 of the needle pressing 28 prevents the knitting needle 20 from floating, and moves the knitting needle 20 beyond the most advanced position in knitting the fabric. When advanced, the bat 18 provided on the upper part of the knitting needle 20 comes into contact with the side surface of the needle holder 28,
The knitting needle 20 can be prevented from falling off from the needle groove 12. The needle release position is the notch 40 of the needle holder 28.
Is opposed to the upper surface of the knitting needle 20 below the needle presser 28, and the needle presser 39 of the needle presser 28 is displaced upward from the upper surface of the knitting needle 20 in the state of FIG. When the knitting needle 20 is advanced beyond the most advanced position in the knitting of the knitted fabric, the bat 18 provided on the knitting needle 20 does not come into contact with the needle holder 28, and the needle holder 28 and the lower needle bed are released. 2, the bat 18 of the knitting needle 20 can pass, and the knitting needle 20 can be released from the needle groove 12.

The needle holder 28 is supported by a needle holder support 30 formed on the lower needle plate 10 inserted into the needle plate groove 8 of the lower needle bed substrate 6, so that the needle holder 28 extends in the longitudinal direction of the needle bed 2. It does not bend over.

In the needle holding device of this embodiment, an operating section 42 is provided at the end of the upper needle bed 4 so that the rotational displacement of the needle holder 28 can be remotely controlled at a position away from the needle holder 28. I have. The operation unit 42 is an operation plate 44 that is slid by the operator on the upper needle bed 4 in the same direction as the advance and retreat of the knitting needle 38, and a transmission mechanism that transmits the movement of the operation plate 44 to the needle holder 28 and rotates the operation plate 44. And a rocking plate 46.

FIG. 5 is a plan view of the lower needle bed 2 with the upper needle bed 4 removed. 6 and 7 are side views of the needle bed showing the positional relationship between the operation plate 44 and the swing plate 46 at the needle holding position and the needle releasing position of the needle holder 28, respectively. 8 and 9
FIG. 3 is a partially perspective plan view of a needle bed at a needle holding position and a needle releasing position of the needle holder 28.

The oscillating plate 46 is substantially fan-shaped, and has teeth 48 formed in the arc portion thereof. Then, the rocking plate 46 is held by the needle holder 28.
A mounting portion 50 for fixing the rocker to the rocking plate 46 is provided perpendicular to the rocking plate 46. The swing plate 46 is orthogonal to the longitudinal direction of the needle holder 28, the direction in which the teeth 48 provided on the arc portion of the swing plate 46 face the upper needle bed 4, and the center axis of the rotation of the needle holder 28. Rocking plate 4 so that it is almost concentric with
A mounting portion 50 provided with the pivot 6 and the needle holder 28 on the rocking plate 46 is fixed to the side surface of the needle holder 28 with a bolt 52.

An operation plate 44 having a rack 54 meshed with teeth 48 formed on the rocking plate 46 is provided above the rocking plate 46.
Is slidably provided on the upper surface of the end of the upper needle bed 4 in the same direction as the direction in which the knitting needle 38 advances and retreats. However, the operation plate 44
Of the swing plate 4 provided below the operation plate 44
In order to mesh with the upper needle bed 4, it is located outside the upper needle bed 4.

The operating plate 44 is provided with an operating lever 58 having a projecting piece 56 at an end and capable of elastically deforming the upper needle bed 4 in the left-right direction. Above the operation plate 44,
A needle bed cover 66 having a U-shaped opening 64 formed by one vertical groove 60 and two horizontal grooves 62a and 62b into which the projecting piece 56 of the operation lever 58 provided on the operation plate 44 passes is covered. Can be 8 and 9, the U-shaped opening 64 formed in the needle bed cover 66 is indicated by a two-dot chain line.

As shown in FIG. 1, the projecting piece 56 of the operating lever 58 projecting from the U-shaped groove 64 of the needle bed cover 66 is inserted into the vertical groove 6 of the needle bed cover 66.
By moving the inside of the upper needle bed 4 in the front-rear direction of the upper needle bed 4, the swing plate 46 meshed with the operation plate 44 starts swinging. The needle holder 28 fixed to the swing plate 46 also rotates, and the needle holder 28 is switched between the needle holding position and the needle releasing position.

In the present embodiment, of the two lateral grooves 62a and 62b formed in the needle bed cover 66, the lateral groove 62b of the needle bed cover 66 has the protrusion 56 provided on the operation lever 58 at the needle holding position. Hang on. The lateral groove 62a of the needle bed cover 66 locks the projection 56 provided on the operation lever 58 at the needle release position, and acts as a stopper so that the needle holder 28 does not rotate.

The projection 56 of the operation lever 58 is located in the lateral grooves 62a and 62b provided in the needle bed cover 66 except when switching between the needle holding position and the needle releasing position. When the needle holder 28 is rotated to switch to the other operation position, the operation lever 58 is elastically deformed to move the protruding piece 56 into the vertical groove 60, and
The projecting piece 56 is moved to the other lateral groove inside or inside the front of the upper needle bed 4 or in the rear direction. When the projecting piece 56 is released, the projecting piece 56 is moved by the operation lever 58 to the lateral groove 62.
a, 62b.

As described above, the needle holder 28 which can switch between the needle holder position and the needle release position by moving the needle holder 39 up and down by the rotational displacement is the needle holder support 3.
By rotatably supporting the needle holder at 0, the switching between the needle holding position of the needle holder 28 and the needle releasing position can be easily performed. Further, by providing the operation portion 42 including the swinging plate 46 and the operation plate 44 at the end on the upper needle bed 4 side, the switching operation between the needle holding position and the needle releasing position of the needle holder 28 is further facilitated. . Therefore, when replacing the knitting needle 20 arranged in the needle groove 12 of the needle bed 2, the knitting needle 20 can be easily released from the needle groove 12 without taking time.

Further, the needle holding support 30 is formed on the extended portion 22 of the lower needle plate 10 extending upward from the head portion together with the upper needle bed substrate support 23 so that the lower needle bed 2 and the upper needle bed 4 The space between them can be effectively used, and the size of the lower needle bed and the like can be reduced.

The needle holder of the knitting needle 38 disposed in the needle groove 36 of the upper needle bed 4 is provided with a needle holder 72 having a trapezoidal cross section in a dovetail groove 70 provided so as to cross the needle groove 36 as in the prior art. Although the dovetails are to be fitted, the needle press of the knitting needle 38 arranged in the needle groove 36 of the upper needle bed 4 may use the needle press of the present invention.

<Modification> A modification of the present invention will be described with reference to the drawings. FIG. 10 is a plan view of the needle holder. FIG.
1 is a cross-sectional view of a needle bed in a modified example. In this modification, the needle holder is switched between a needle holding position and a needle releasing position by vertically moving the needle holder. The flat knitting machine according to the modified example is the same as the above-described embodiment, and the description is omitted here. Parts corresponding to the above-described embodiments are denoted by the same reference numerals.

Reference numeral 80 denotes a groove cam plate as a needle holder. The groove cam plate 80 has an inclined portion 82b and an upper horizontal portion 82.
a, a groove cam 82 formed from the lower horizontal portion 82c,
The groove cam plate 80 is formed at an appropriate position in the longitudinal direction. 83
Denotes a needle holding portion, which prevents the knitting needle 20 from floating. The extension 88 of the lower needle plate 84 is provided with a pin 88 for supporting the grooved cam plate 80 as a needle holding support in the same direction as the advance / retreat direction of the knitting needle 20. The lower needle plate 84 provided with the pin 88 is provided with the needle plate groove 8.
Is inserted for each of a plurality of lines. Other needle plate groove 8
, A lower needle plate having no pin 88 is inserted. A groove cam 82 is bored in the groove cam plate 80 at the same interval as between the lower needle plates 84 having a pin 88 in the extension portion 86.

The groove cam plate 80 traverses the knitting needle 20 above the knitting needle 20 arranged in the needle groove 12 of the lower needle bed 2 and is located forward of the most advanced position of the bat 18 provided on the upper surface of the knitting needle 20 in knitting the knitted fabric. , Are supported by pins 88 provided on an extension 86 of the lower needle plate 84. By moving the groove cam plate 80 in the left-right direction, the groove cam plate 80 is vertically displaced by the groove cam 82. When the pin 88 is at the upper horizontal portion 82a of the groove cam 82, the needle pressing position is reached, and the needle pressing portion 83 of the groove cam plate 80 presses the upper surface of the knitting needle 20. When the pin 88 is at the lower horizontal portion 82c of the groove cam 82, the needle is in the needle release position, and the needle holding portion 83 of the groove cam plate 80 is displaced upward from the upper surface of the knitting needle 20.

As described above, the groove cam plate 80 serving as a needle holder capable of switching between the needle holding position and the needle releasing position by vertical movement is supported by the extension portion 86 of the lower needle plate 84 by the pin 88. Thus, the switching between the needle holding position and the needle releasing position of the groove cam plate 80 can be easily performed.

The needle holder may be formed as a single unit or may be formed separately in the longitudinal direction of the needle bed. Further, in the above-described embodiment, the needle holder is formed to have a half-moon cross section having a cutout portion formed by cutting the side surface of the round bar in the longitudinal direction, but this is not limited to the half-moon shape. For example, a square bar may be used. At this time, each side surface of the square bar is a notch. The needle holder may have any shape as long as it prevents the knitting needle from floating at the needle holding position and releases the knitting needle from the needle groove at the needle releasing position.

In the above embodiment, the needle holder 2
A description has been given of the needle holding device capable of switching between the needle holding position and the needle releasing position of the needle holding unit by the vertical movement displacement of the needle holding unit 39 due to the rotation of 8, but the needle holding unit is moved by the vertical movement displacement by swinging. May be switched between the needle holding position and the needle releasing position.

In the embodiment, the switching between the needle pressing position and the needle releasing position of the needle pressing is performed by remote control by the operation unit provided at the needle bed side end, but the operation unit is provided. Alternatively, the operator may directly displace the needle holder.

Although the embodiment has been described in connection with the case where the needle holding device of the present invention is applied to a four-bed flat knitting machine, the present invention is also applicable to a flat knitting machine other than the four-bed type. can do.

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.

[0045]

As described above, according to the present invention, a needle holding portion of a needle holding portion of a knitting needle disposed in a direction intersecting with a knitting needle disposed in a needle groove at an extended portion obtained by extending a part of the needle plate upward. The needle holding position of the needle holder and the needle release position support the needle holding position, which is arranged in the needle groove of the needle bed, to prevent floating of the knitting needle, and the needle release position, which releases the knitting needle from the needle groove. Switching with the position can be easily performed.

Further, by providing at the end of the needle bed an operating portion for performing an operation for vertically moving the needle holding portion of the needle holding device supported by the needle holding supporting portion, the needle holding position of the needle holding device and the needle holding position can be adjusted. The switching operation to the release position can be further facilitated.

Further, the needle holder is rotatably supported by the needle holder supporting portion, and the rotation of the needle holder moves the needle holder of the needle holder up and down between the needle holding position and the needle releasing position. The needle holding position and the needle releasing position can be easily switched.

[Brief description of the drawings]

FIG. 1 is a plan view at the end of a needle bed.

FIG. 2 is a sectional view of a needle bed at a needle pressing position of the needle pressing.

FIG. 3 is a cross-sectional view of a needle bed at a needle release position of a needle holder.

FIG. 4 is a side view of a lower needle plate.

FIG. 5 is a plan view showing a state where an upper needle bed is removed.

FIG. 6 is a side view of a needle bed at a needle pressing position of the needle pressing.

FIG. 7 is a side view of the needle bed in a needle release position of the needle presser.

FIG. 8 is a plan view of the needle bed at a needle pressing position of the needle pressing, which is partially transparent.

FIG. 9 is a plan view of the needle bed in a partially released state at a needle release position of the needle presser.

FIG. 10 is a plan view of a needle holder according to a modified example.

FIG. 11 is a sectional view of a needle bed in a modified example.

FIG. 12 is a view showing a conventional needle pressing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Flat knitting machine 2 ... Lower needle bed 4 ... Upper needle bed 6 ... Lower needle bed substrate 8 ... Lower needle plate groove 10, 84 ... Lower needle plate 12 ... Lower needle groove 14 Needle 16 Needle jack 18 Butt 20 Knitting needle 22, 86 Extension portion 23 Upper needle bed substrate support 24 Upper needle bed substrate 26: Support surface 28: Needle holder 30: Needle holder support 32: Upper needle plate groove 34: Upper needle plate 36: Upper needle groove 39, 83: Needle holder Part 40 ... Notch 42 ... Operation part 44 ... Operation plate 46 ... Sliding plate 48 ... Teeth 50 ... Mounting part 52 ... Bolt 54 ... Rack 56 ...・ Projection piece 5 ... lever 60 ... vertical groove 62 ... lateral grooves 64 ... U-shaped opening 66 ... needle bed cover 80 ... grooved cam plate 82 ... cam groove 88 ... pin

Claims (3)

[Claims] 1. A needle bed substrate having a plurality of rows of needle plate grooves, a needle plate being inserted into each of the needle plate grooves to form needle grooves between the needle plates, and a knitting needle being freely movable in each of the needle grooves. The needle beds to be arranged at the front and rear are arranged with a pair of front ends thereof abutting on each other, and a part of the needle plate to be inserted into the needle plate groove of at least one of the front and rear needle beds is extended upward and In a flat knitting machine in which a knitting needle or an upper knitting member such as a transfer jack or a sinker is directly or indirectly supported, a knitting needle arranged in the needle groove at an extended portion obtained by extending a part of the needle plate upward. Before the needle presser of the needle press of the knitting needle arranged in the direction intersecting with the needle bed is arranged in the needle groove of the needle bed. A needle holding device in a flat knitting machine, characterized in that the needle holding device is vertically movably supported at a needle holding position for preventing the floating of the knitting needle and a needle releasing position for releasing the knitting needle from the needle groove. 2. An operation section for performing an operation for vertically moving a needle press section of the needle press supported by the needle press support section is provided at an end of the needle bed. Item 7. A needle holding device in the flat knitting machine according to Item 1. 3. The needle retainer is rotatably supported by the needle retainer support, and the rotation of the needle retainer moves the needle retainer of the needle retainer up and down between a needle retainer position and a needle release position. The needle holding device of the flat knitting machine according to claim 1, wherein