CN102264966A

CN102264966A - Weft knitting machine

Info

Publication number: CN102264966A
Application number: CN2009801526384A
Authority: CN
Inventors: 山野浩稔
Original assignee: Shima Seiki Mfg Ltd
Current assignee: Shima Seiki Mfg Ltd
Priority date: 2008-12-26
Filing date: 2009-12-03
Publication date: 2011-11-30
Anticipated expiration: 2029-12-03
Also published as: CN102264966B; EP2392710B1; JP5414697B2; KR101356444B1; WO2010073500A1; KR20110099699A; EP2392710A1; EP2392710A4; JPWO2010073500A1

Abstract

The present invention provides a weft knitting machine configured in such a manner that vibration of a knitting pad occurring when the pad makes contact with a lower-down sloped surface can be minimized. A weft knitting machine which is provided with a cam system having cam plates (100), a needle raising cam (2), a top cam (3), and stitch cams (4) is provided with a pair of projectable cams (1). Each of the projectable cams (1) is provided between a lift-up sloped surface (8) and a lower-down sloped surface (9) so as to be able to project from the associated cam plate. When a knitting pad (70) is located on the side where the knitting pad (70) is lifted by the lift-up sloped surface (8), the projectable cam (1) is in a retracted state so as not to obstruct movement of the knitting pad (70), and when the knitting pad (70) is located on the side where the knitting pad (70) is lowered by the lower-down sloped surface (9), the projectable cam (1) is in a projected state so that allowance for vertical vibration of the knitting pad is reduced by a guiding sloped surface (10) which faces the rear end of the knitting pad (70).

Description

Straight-bar machines

Technical field

The present invention relates to make and arrange the straight-bar machines that the knitting needle that is arranged at needle-bar carries out braid movement.

Background technology

Straight-bar machines is the cam carrier that possesses needle-bar and carry out reciprocating action along the length direction of needle-bar, and advances and retreat and the device of making knit fabric along the length direction of needle tray by a plurality of knitting needles that make arrangement be arranged at needle-bar.(for example with reference to patent documentation 1 and patent documentation 2).The braid movement of knitting needle is elemental motion with lopping, tuck, these 3 of flotation lines, and by the cam system that cam carrier possessed, a plurality of pin heels that each knitting needle is possessed are moved, and control the braid movement of knitting needle thus.

Fig. 1 is the diagrammatic illustration figure that is illustrated in the corresponding states of knitting needle 7 when having selected lopping as braid movement in the existing cam system and cam system.In addition, in this Fig. 1, for convenience of explanation, only show rise cam 2 in the cam system, press yarn triangle 3 and sitch cam 4, and illustrate from the direction different and observe situation behind the knitting needle 7 with the configuration direction of reality.

Knitting needle 7 generally includes have pinhock pin body 71, needle jack 72, needle selection slyder 73 and the selection piece 74 of (not shown).In these parts, be provided with braid movement and call in person 70 with pin on needle jack 72, cam system described later acts on this braid movement with pin heel 70, makes needle jack 72 along tooth mouth 0 direction advance and retreat thus, and consequently, pin body 71 is along the direction advance and retreat of tooth mouth 0.

Selected lopping to advance along the route shown in the arrow of double dot dash line among Fig. 1 with pin heel 70 as the braid movement of the knitting needle 7 of braid movement.Particularly, follow moving of cam carrier, braid movement is with the thinner wall section 43 of pin heel 70 by the sitch cam 4 in paper left side, by the rising ramp 8 of rise cam 2 to tooth mouth 0 direction jack-up.And then cam carrier is when moving, and the falling ramp 9 that braid movement is pressed second inclined-plane 92 of first inclined-plane 91 of yarn triangles 3 and sitch cam 4 to constitute with pin heel 70 is depressed to the opposition side of tooth mouth 0.Sitch cam 4 constitutes can be along sliding on the direction on second inclined-plane 92, changes the position of the lower end on second inclined-plane 92, the amount of drawing in that can regulate knitting needle 7 by slip.

The prior art document

Patent documentation 1: the special fair 2-10262 communique of Japan

Patent documentation 2: TOHKEMY 2006-183182 communique

Summary of the invention

As shown in Figure 1, in certain straight-bar machines, between rising ramp 8 and falling ramp 9, form sometimes width than braid movement with the length of pin heel 70 big the gap.The reason that forms bigger gap has several.As one of them reason, can list, in order to adjust the timing of the pin body that makes in the compound needle and pusher jack both sides motion, and the position (for example with reference to patent documentation 2) that rising ramp 8 is positioned at separate with falling ramp 9.In addition,, also can list as other reasons, the impact when contact with rising ramp 8 with pin heel 70, both wearing and tearing that reduce that contact causes in order to relax braid movement, and with respect to the angle of inclination of the angle of inclination mitigation rising ramp 8 of falling ramp 9.

In this straight-bar machines, in recent years,, studying the further high speed of braiding speed in order to improve the production efficiency of knitted fabric, that is, make the translational speed high speed of cam carrier.Herein, when making the braid movement high speed, if between rising ramp 8 and falling ramp 9, have big gap, when then braid movement contacts with

triangle

2,3,4 with pin heel 70, the direction (the illustrative in the drawings thick direction of arrow) of the direct of travel quadrature of Xiang Yuzhen heel 70 is beated, in the part in gap to the position vibration that departs from normal route.This vibration does not become king-sized problem when braid movement rises with pin heel 70, but produces fluctuation at stocking yarn in the amount of drawing in of needle-bar when descending, and becomes the reason of the final effect of infringement knitted fabric.

The present invention foundes in view of the above problems, and its purpose is, provides braid movement in the time of can suppressing to contact with falling ramp with the straight-bar machines of the vibration of pin heel.

The present invention relates to comprise have set square, the straight-bar machines of the cam system of rise cam, pressure yarn triangle, sitch cam.Set square is formed in the one side side of the cam carrier that moves back and forth on the length direction of the needle-bar that is arranged with a plurality of knitting needles.Rise cam is from the outstanding parts that are provided with and have the roughly mountain type of rising ramp of set square, and described rising ramp acts on braid movement that knitting needle possesses makes knitting needle enter to the tooth mouth as the upper end side of pin heel with the lower end of pin heel.Pressing the yarn triangle is from the outstanding parts that are provided with and have first inclined-plane of a part that constitutes falling ramp of set square, and described falling ramp acts on braid movement makes knitting needle withdraw to the opposition side of tooth mouth with the upper end of pin heel.Sitch cam is outstanding from set square, is provided with a pair ofly about rise cam, has second inclined-plane of the remainder that constitutes falling ramp, and determines the parts of the amount of drawing in of final knitting needle.The straight-bar machines of the present invention that possesses this formation, it is characterized in that, also have the pairing left and right triangle that haunts, its both sides in rise cam are disposed at the set square between rising ramp and the falling ramp, and constitute with the direction of the crossing on the same level of set square on haunt freely.This triangle that haunts, a side that rises by rising ramp with pin heel at braid movement, become the state of submerging to avoid hindering braid movement moving with the pin heel, in the side that braid movement is called in person and descended by falling ramp with pin, become outstanding state and reduce up and down the vibratory output of braid movement with the relative part in the lower end of pin heel with the pin heel in order to using with braid movement.

The triangle that haunts constitutes to haunt with respect to set square and gets final product freely, and its formation is not particularly limited.For example, can make the triangle that haunts constitute with the direction of the face quadrature of set square on haunt freely, utilize mechanical driving units such as electromagnetic drive unit, motor such as solenoid to drive the triangle that haunts.In addition, the formation of haunting of the triangle that haunts can be controlled as the driver element that does not use the triangle special use of haunting, formation shown below can be enumerated.

In straight-bar machines of the present invention, make the triangle that haunts become roughly plate-shaped member along falling ramp.And the upper end side of the triangle that haunts is supported by axle in the lower end side that can make the triangle that the haunts mode along the direction swing of haunting, the lower end side of the triangle that haunts by at set square and the elastomer that disposes between the triangle of haunting to from the outstanding direction pushing of set square.

And, preferably, with respect to the triangle that haunts that possesses above-mentioned formation, following formation sitch cam.That is, sitch cam comprises: the triangle body with second inclined-plane; The braid movement that links with the lower end side of triangle body and prevent to descend along falling ramp is with the triangle that bears of the excessive descent of pin heel, and constitute can be along sliding on the direction on second inclined-plane.And,, utilize the triangle pushing of will haunting of the part bear triangle to be the state of submerging according to the sliding position of sitch cam.

The invention effect

According to straight-bar machines of the present invention, utilize when pressing yarn trigonometric sum sitch cam to descend with the pin heel at the braid movement of knitting needle, the triangle that haunts guiding braid movement is with the lower end of pin heel, therefore can suppress braid movement with the vibration of pin heel to the above-below direction of cam system.Consequently, even the braid movement of knitting needle is also stable in braiding at a high speed, therefore can weave finished product knitted fabric attractive in appearance.

If constitute by one of the triangle that haunts is distolaterally carried out other end side oscillation that axle supporting makes the triangle that haunts freely, and constitute by elastomer other end side direction projected direction pushing, then electromagnetic drive unit is not set and can controls haunting of the triangle that haunts at the triangle that haunts.Particularly, act on the side of braid movement, utilize braid movement to press, can make the triangle that haunts become the state of submerging thus with the pin heel three angle set square thrusters of will haunting with pin heel at rising ramp.Particularly preferably be,, make braid movement block and go up more, on the triangle that haunts, form the inclined-plane with the call in person triangle that do not haunted of pin for when braid movement contacts with the triangle that haunts with pin heel.In addition, act on the side of braid movement with pin heel at falling ramp, the triangle that haunts becomes outstanding state by elastomer, therefore can utilize the triangle that haunts pair to contact with falling ramp and lower end that the braid movement of beating is called in person with pin under support.

As the formation that pushes the triangle that haunts that as above constitutes, if use a part of bearing triangle, then need not separately drive source to be set and can to control the state that submerges of the triangle that haunts and the switching of outstanding state in order to push the triangle that haunts in the lower end side setting of sitch cam.And, act on the side of braid movement at rising ramp with the pin heel, can avoid braid movement directly to contact with the triangle that haunts with the pin heel, can reduce the possibility of two components damage.

Description of drawings

Fig. 1 is the diagrammatic illustration figure that is illustrated in the corresponding states of knitting needle when having selected lopping as braid movement in the existing cam system and cam system.

Fig. 2 is the diagrammatic illustration figure of configuration status of the triangle that haunts of the straight-bar machines of expression embodiment.

Fig. 3 is the summary three-view diagram of triangle of haunting, and (A) is front view, (B) is the perspective view of (A), (C) is upward view.

The specific embodiment

Below, based on the description of drawings embodiments of the present invention.Straight-bar machines of the present invention is characterised in that to have the triangle that haunts that does not have in the existing cam system, and the formation beyond this triangle that haunts is with roughly the same with reference to the existing cam system of Fig. 1 explanation.Therefore, in the following embodiment, omitting explanation for the parts mark label identical with Fig. 1 identical with existing cam system, is that the center describes with the difference with existing cam system.

Fig. 2 is the diagrammatic illustration figure of configuration status of the triangle 1 that haunts in the cam system of expression embodiment.Among this Fig. 2, except the figure that obtains from the top view cam system, with the partial sectional view of set square 100 that disposes the position of the triangle 1 that haunts be illustrated in sitch cam 4 near.The position of braid movement with the height of pin heel 70 represented in double dot dash line in the partial sectional view.In addition, Fig. 3 is the three-view diagram of the triangle 1 that haunts in paper shown in Figure 2 left side, (A) is front view, (B) is the perspective view of (A), (C) is upward view.In addition, the triangle 1 that haunts on the paper right side of Fig. 2 has the symmetrical shape of the triangle that haunts with Fig. 3.

As shown in Figure 2, cam system of the present invention, the position in the gap that forms between rising ramp 8 and falling ramp 9 (first inclined-plane 91 and second inclined-plane 92) has a pair of triangle 1 that haunts that embeds the recess that is formed at set square 100.

The triangle 1 that haunts is roughly tabular parts, has the swinging axle 1s of distolateral formation thereon and the spring base 1g that forms at the back side of lower end side.In addition, in the face side of triangle 1 of haunting, promptly be formed with a plurality of 11～16 with the pin 70 relative sides of calling in person with the braid movement of knitting needle 7.And the triangle 1 that haunts has from the position of the upper end of face 11 to the lead-in chamfered 10 of the position of the lower end of face 14 at its side.

The face 15 of triangle 1 of haunting is thinner wall section 22 butts with rise cam 2 described later, and the haunt face of the upper limit of overhang of triangle 1 of decision.When face 15 and thinner wall section 22 butts described later, comprise face 14, face 12 these 3 faces and set square 100 almost parallels of face 15.About the height of these

faces

12,14,15, according to reason described later, face 12 is the highest, and the order of then pressing face 14, face 15 reduces.In addition, with respect to another distolateral adjacent face 16 of face 15 and the triangle 1 that haunts along with distolateral and descend to rear side towards another.And, face 11 and face 13 be respectively when the triangle 1 that haunts is disposed at set square 100 with respect to

face

12 and 14 at the adjacent face of the left and right directions of cam system, along with from

face

12,14 sides towards the ledge of swinging axle 1s and descend to rear side.

When this triangle 1 that haunts was disposed at the recess of set square 100, one of the triangle 1 that haunts distolaterally utilized swinging axle 1s and axle is supported on set square 100, another distolateral can swing.In addition, dispose spring (elastomer) 19 between the spring base 1g of the triangle 1 that haunts and set square 100, another of the triangle 1 that haunts is distolateral all the time by to from the outstanding direction application of force of set square 100, at face 15 and thinner wall section 22 butts.Pei Zhi the triangle 1 that haunts in the space that is surrounded by set square 100, rise cam 2 and pressure yarn triangle 3, does not make the position of the

triangle

2,3 in the existing cam system move like this, and configuration compactly.

On the other hand, sitch cam 4 possess triangle body 41 with second inclined-plane 92 that constitutes falling ramp 9, the lower end side of triangle body 41 form bear triangle 42, with triangle body 41 with bear the thinner wall section 43 that triangle 42 is connected aspect same as the prior art.But, bear triangle 42 and stretch out to rise cam 2 sides.Therefore, form the roughly part of the descending of the rise cam 2 of mountain type, forming the thinner wall section 22 of taking in this extension that bears triangle 42 420.This thinner wall section 22 forms by the inside side (paper inboard) incised notch with rise cam 2.

Based on Fig. 2, the triangle 1 that haunts, the rise cam 2 of the formation by possessing above explanation, braid movement when pressing yarn triangle 3 and sitch cam 4 to make knitting needle carry out lopping as braid movement are described with the track of pin heel 70.

At first, when braid movement was imported into rise cam 2 with pin heel 70, the sitch cam 4 in paper left side rose along second inclined-plane 92, disposed thinner wall section 43 on the progress path of braid movement with pin heel 70.At this moment, will the haunt face 16 of triangle 1 of the extension 420 of sitch cam 4, a part of promptly bearing triangle 42 is pressed to set square 100 thrusters, makes in the distolateral recess that is absorbed in set square 100 of another of the triangle 1 that haunts.Finally, extension 420 pushes the face 15 of the triangle 1 that haunts, and makes the face 14 of the triangle 1 that haunts keep out of the way set square 100 sides from the braid movement shown in the double dot dash line with the position of the height of pin heel 70.Herein, the height of the face 15 of the triangle 1 that haunts is that basis makes the triangle 1 that haunts which kind of degree be absorbed in the height that determines with, and the height of face 14 is the height that can keep out of the way from the position of double dot dash line when the triangle 1 that haunts is absorbed in.

The braid movement that is imported into rise cam 2 calls in person 70 after passing through the thinner wall section 43 of sitch cam 4 with pin, the position of the

face

14,13 of the triangle 1 that haunts that is in the state of submerging is contacted with the triangle 1 that haunts and pass through, contact with rising ramp 8 and rise towards tooth mouth direction.Then, braid movement is with the position of pin heel 70 by the summit of rise cam 2, contact with first inclined-plane 91 (falling ramp 9) of pressing yarn triangle 3 and towards the opposite direction decline of tooth mouth.

Braid movement with pin heel 70 with before falling ramp 9 contacts, sitch cam 4 with the position of the lower end on second inclined-plane 92, be the mode that the position of the lower end of falling ramp 9 becomes the position of expectation, to direction decline along second inclined-plane 92.According to the position of the lower end on second inclined-plane 92, the decision braid movement with the amount of leaving behind of pin heel 70, be the amount of drawing in of knitting needle.At this moment, sitch cam 4 bear the position that extension 420 that triangle 42 possessed is positioned at the face 16 that does not act on the triangle 1 that haunts, therefore the triangle 1 that haunts is pushed to the direction of separating with the recess bottom surface of set square 100 by the elastic force of spring 19, is blocked by the thinner wall section 22 of rise cam 2 in the part of face 15.

The lead-in chamfered 10 that becomes the triangle 1 that haunts of outstanding state is configured in the position relative with falling ramp 9 (with reference to the triangle 1 that haunts on the right side of Fig. 2).Therefore, even braid movement is beated to the following direction of sitch cam 4 when contact with first inclined-plane 91 with pin heel 70, braid movement also is directed inclined-plane 10 with pin heel 70 and blocks, and can not vibrate and along falling ramp 9 declines.The lead-in chamfered 10 of this position is the height the best part, can block braid movement reliably and call in person 70 with pin.In addition, the boundary portion on first inclined-plane 91 and second inclined-plane 92, braid movement is also beated to the following direction of sitch cam 4 easily with pin heel 70, but braid movement is called in person with pin and 70 also is directed inclined-plane 10 and blocks under this situation.Like this, braid movement always is being blocked in lead-in chamfered 10 to the position that the following direction of sitch cam 4 is beated easily with pin heel 70, even therefore make the cam carrier high speed, also can make the degree of drawing in of stocking yarn stable, can weave successful knitted fabric.

Herein, with behind the hand operated knitting needle, when making the cam carrier action, braid movement contacts with the triangle 1 that haunts with the state that the position of the upper end of comparing lead-in chamfered 10 descends with pin heel 70 sometimes when safeguarding etc.For example, sometimes on the height of the height of the face 11 of the triangle 1 that haunts in Fig. 2, face 13, braid movement contacts with the triangle 1 that haunts with pin heel 70.In this case, it is face 11 or face 13 that braid movement is gone up the inclined plane that descends towards the paper left side more with pin heel 70, and the triangle 1 that haunts is absorbed in, and can prevent that therefore braid movement from just in time acting on two parts with the impact of the collision of the pin heel 70 and the triangle 1 that haunts.Top more 11 or the braid movement of face 13 with pin heel 70 by face 12 or face 14, arrive the gap of lead-in chamfered 10 and falling ramp 9, keep this state to descend along falling ramp 9.

In addition, possess braid movement and can be latch needles with the knitting needle of pin heel, also can be for having the compound needle of pusher jack.In addition, formation of the present invention also can be applied to possess the complex cam system of barring-on with triangle.

Label declaration

0 tooth mouth

100 set squares

1 triangle that haunts

1s swinging axle 1g spring base 19 springs

11～16 of 10 lead-in chamfered

2 rise cams, 22 thinner wall section

3 press the yarn triangle

4 sitch cams

41 triangle bodies 42 bear triangle 43 thinner wall section 420 extensions

7 knitting needles

71 pin bodies, 72 needle jacks

73 needle selection slyders, 74 selection pieces

70 braid movements are called in person with pin

8 rising ramps

92 second inclined-planes, 9 falling ramps, 91 first inclined-planes

Claims

1. a straight-bar machines possesses cam system, and this cam system comprises:

Set square is formed in the one side side of the cam carrier that moves back and forth on the length direction of the needle-bar that is arranged with a plurality of knitting needles;

The rise cam of mountain type roughly is provided with and has a rising ramp from set square is outstanding, and described rising ramp acts on braid movement that knitting needle possesses makes knitting needle enter to the tooth mouth as the upper end side of pin heel with the lower end of pin heel;

Press the yarn triangle, from outstanding first inclined-plane that is provided with and has a part that constitutes falling ramp of set square, described falling ramp acts on braid movement makes knitting needle withdraw to the opposition side of tooth mouth with the upper end of pin heel; And

Sitch cam, outstanding from set square, about rise cam, be provided with a pair ofly, have second inclined-plane of the remainder that constitutes falling ramp, and determine the amount of drawing in of final knitting needle,

Described straight-bar machines is characterised in that,

Have the pairing left and right triangle that haunts, the described triangle that haunts is disposed at the set square between described rising ramp and the falling ramp in the both sides of rise cam, and constitute with the direction of the crossing on the same level of set square on haunt freely,

The described triangle that haunts,

At described braid movement with pin heel by the side that rising ramp rises, become the state of submerging avoiding hindering braid movement with the moving of pin heel,

In the side that described braid movement is called in person and descended by falling ramp with pin, become outstanding state and reduce up and down the vibratory output of braid movement with the relative part in the lower end of pin heel with the pin heel in order to using with braid movement.

2. straight-bar machines according to claim 1 is characterized in that,

The triangle that haunts is the roughly plate-shaped member along described falling ramp,

The upper end side of triangle of haunting is supported by axle in the lower end side that can make the triangle that the haunts mode along the direction swing of haunting,

Haunt triangle lower end side by at set square and the elastomer that disposes between the triangle of haunting to from the outstanding direction pushing of set square.

3. straight-bar machines according to claim 2 is characterized in that,

Sitch cam comprises: the triangle body with described second inclined-plane; The described braid movement that links with the lower end side of described triangle body and prevent to descend along described second inclined-plane is with the triangle that bears of the excessive descent of pin heel, and constitute can be along sliding on the direction on second inclined-plane,

According to the sliding position of sitch cam, utilize the triangle pushing of will haunting of the part bear triangle to be the state of submerging.