CN201864888U - Movable sinker and flat knitting machine - Google Patents

Abstract

The utility model provides a movable sinker and a flat knitting machine, wherein the movable sinker can reliably accept sinker loops at coil accepting parts while carrying out density-enhancing knitting, and draw out the sinker loops from the coil accepting parts during loop transfer. For the knitting yarn accepting part (17h) of the movable sinker (17), during the formation of coils, the limited upper limit part of a deep depressed part deeply crosses the needle bottom surface. During the density-enhancing knitting, the interior of the knitting yarn accepting part (17h) accepts the sinker loops, and knitting loops are withdrawn from the needle tongue of a knitting needle towards the needle rod side, thereby leading the sinker loops to be difficult to be withdrawn from the knitting yarn accepting part (17h). The knitting yarn accepting part (17h) stretches with an angle theta, therefore, during operations of loop crossing and the like, the sinker loops push and press the inclined inner edge, a swing aim (17b) of the movable sinker (17) can be lifted, and simultaneously, the sinker loops can be drawn out.

Description

Movable sinker and straight-bar machines

Technical field

The utility model relates to movable sinker and possesses the straight-bar machines of this movable sinker, and described movable sinker is swung displacement and the swing arm that possesses coil formation portion and stocking yarn receiving portion is advanced and retreat with respect to the tooth mouth near the tooth oral-lateral front end of needle-bar.

Background technology

All the time, in straight-bar machines, when the pinhock by knitting needle is introduced stocking yarn the needle-bar side and is formed new coil, it is movable making the sinker at tooth oral-lateral support stocking yarn, also makes its stocking yarn with the coil that will form by the swing displacement be pushed into functions (for example with reference to patent documentation 1) such as tooth mouth.

The summary that Fig. 9 represents to possess the straight-bar machines 1 of patent documentation 1 disclosed movable sinker constitutes.Needle-bar 2 is with certain interval needle plate 4 to be inserted into substrate 3 and to form along the direction vertical with paper.Straight-bar machines 1 has at least one pair of needle-bar 2, is provided with the gap that is called tooth mouth 5 between needle-bar 2.A pair of needle-bar 2 is that center line disposes symmetrically with the center line 5a of tooth mouth 5.The direction of center line 5a is a vertical, each needle-bar 2 is higher with tooth mouth 5 sides, the mode of step-down tilts during away from tooth mouth 5, but in this specification afterwards and the accompanying drawing, be the needle-bar 2 that only illustrates a side under the horizontal attitude in the pin bottom surface of the bottom surface when mobile of sliding as knitting needle 6.In addition, be that benchmark is represented direction up and down with this attitude, with tooth mouth 5 sides as preceding, will be away from tooth mouth 5 one sides as the back and the directions before and after the expression.

Between needle plate 4, produce the gap of extending, as the needle tray of accommodating knitting needle 6 along fore-and-aft direction.Front end in tooth mouth 5 sides of knitting needle 6 has pinhock 6a, if knitting needle 6 be a latch needles, then makes pinhock 6a switching by needle latch 6b.In the knitting needle 6, rearward be separated out to have at interval from front end and be called the stage portion of take on 6c, be provided with the blade 6d that barring-on is used in a near side of takeing on the 6c.In addition, the arranging density of every 25.4mm of knitting needle 6 (1 inch) is called as plane No. (gage).

Near the front end of needle-bar 2, be formed with the support 4a of the recess that becomes semicircle shape on the needle plate 4, the centre from movable sinker 7 is supported under the state that can swing displacement with the outstanding 7a of support sector of semicircle shape.Movable sinker 7 has swing arm 7b in support sector 7a the place ahead, has operating member 7c in the wings, swings displacement around imaginary oscillation center 7d.Swing arm 7b roughly has arc shape.In addition, in patent documentation 1, hairspring with movable sinker 7 splits is installed, carries out the application of force so that swing arm 7b enters tooth mouth 5, but also can be used as the 7e of spring portion and integrated (for example with reference to patent documentation 2) in interior all sides of the part that is equivalent to the 7a of support sector.

At the front end of substrate 3, be formed with the sedimentation film trap 3a of permission swing arm 7b with respect to the swing displacement of tooth mouth 5 advance and retreat.In patent documentation 1, guide spacing block 8 is set on movable sinker 7 in the lump, by to the outstanding stocking yarn guide part 8a of tooth mouth 5 with the coil formation portion 7f of stocking yarn guiding to movable sinker 7, and come off by stocking yarn and to prevent that the 8b of portion from preventing that stocking yarn from coming off to sedimentation film trap 3a.The coil formation 7f of portion comprises that the air line distance of the outer rim middle distance oscillation center 7d of swing arm 7b, the track path length when promptly swinging are maximum interval.By the arc shape of swing arm 7b, comparing forward end one side of the coil formation 7f of portion becomes apart from the air line distance of oscillation center 7d, the little leading section 7g of the track fineness ratio coil formation 7f of portion when promptly swinging.On the stage portion between online circle formation 7f of portion and the leading section 7g, form to the front opening of arc shape and the stocking yarn receiving portion 7h that caves in to base end side.The degree of depth of the depression of stocking yarn receiving portion 7h determines according to the thickness of the stocking yarn that uses in the braiding, rather than reaches above the degree that needs.If this is because dark excessively, even then need to make stocking yarn to break away from from stocking yarn receiving portion 7h in barring-on, also be difficult to its disengaging.

Mid portions such as the 7e of spring portion of movable sinker 7 are housed in the anterior attenuation that makes needle plate 4 with the mid portion of guide spacing block 8 and in the sinker resettlement section 4b that forms.The rear portion of guide spacing block 8 is housed in and makes needle plate 4 attenuation and in the spacing block resettlement section 4c that the rear of sinker resettlement section 4b forms.In sinker resettlement section 4b and spacing block resettlement section 4c, become knitting needle 6 above part dispose diagram abridged spacing block.The top of this spacing block, guide spacing block 8 is by the metal tape 9 that vertically connects with paper and fix with respect to sinker resettlement section 4b.The substrate 3 of needle-bar 2 and needle plate 4 position by wire 10a, the 10b that vertically connects with paper and are fixing.Guide spacing block 8 and spacing block are fixed with respect to spacing block resettlement section 4c by the wire 10c that vertically connects with paper.

The 7e of spring portion of movable sinker 7 with stocking yarn receiving portion 7h pushing to the mode of the below of tooth mouth 5 to its application of force.Do not pushing under the state of stocking yarn by stocking yarn receiving portion 7h, leading section 7g is pushed into the lower position shown in the double dot dash line.Pinhock 6a by knitting needle 6 with stocking yarn when tooth mouth 5 is incorporated into needle-bar 2 sides and forms coil, if the lower end of the coil formation 7f of portion is guided the position of the stocking yarn that forms sinker loop by last position by jack-up to comparing by stocking yarn guide part 8a, then cause not forming sinker loop, therefore by the 11 restriction upper limits of triangle before the sinker.Movable sinker 7 among the figure shown in the solid line is the state by the 11 restriction upper limits of triangle before the sinker.Under this state, the height of the depression depths of stocking yarn receiving portion 7h is below the pin bottom surface.In addition, in the lower position shown in the double dot dash line, be state by sinker Vee formation 12 7c of limit movement portion.Before the sinker triangle 11 and sinker Vee formation 12 carry along needle-bar 2 on the cam carrier of back and forth advancing on the direction vertical with paper.Though omitted diagram, cam carrier is equipped with the triangle that optionally drives knitting needle 6, the triangle that limits the action of movable sinker 7.When sinker Vee formation 12 enters tooth mouth 5 and accepts the supply of stocking yarn at the pinhock 6a that makes knitting needle 6, swing arm 7b is moved from the mode that tooth mouth 5 withdraws to depress movement arm 7c.Form back sinker Vee formation 12 by online circle and cause that swing arm 7b withdraws from from tooth mouth 5, the stocking yarn of the sinker loop that the online circle formation 7f of portion forms comes off from the front end of the coil formation 7f of portion, transfers to stocking yarn receiving portion 7h and is depressed.

Figure 10 is expressed as follows moves back the state of circle before at once: make the pinhock 6a of knitting needle 6 enter tooth mouth 5, the needle loop 13a that forms on pinhock 6a when online circle is formed strides across needle latch 6b and moves to the shank side at knitting needle rear.Because sinker loop 13b is hooked on coil receiving portion 7h, so advancing by knitting needle 6, needle loop 13a retreats relatively with respect to pinhock 6a, makes the needle latch 6b of the state of closing pinhock 6a counterclockwise rotate in figure and open, and further retreats on the needle latch 6b that opens.The position of needle loop 13a is striding across the moving back under the state of circle before at once to the highest of needle latch 6b as shown in the figure, at the swing arm 7b of the movable sinker 7 of stocking yarn receiving portion 7h hook sinker loop 13b also to the counter clockwise direction swing of withdrawing from from tooth mouth 5.In addition, for the knitting needle 6 of hook needle loop 13a not on pinhock 6a,, can open needle latch 6b by omitting illustrated bristle though needle latch 6b enters tooth mouth 5 under the state of closing pinhock 6a.

Figure 11 schematically represents the action of knitting needle 6 and movable sinker 7 under the state of observing above needle-bar 2.(a) corresponding with Fig. 9, be illustrated in pinhock 6a rise to the bait hang needle loop 13a, the state of hook sinker loop 13b on stocking yarn receiving portion 7h.The coil that is formed by needle loop 13a and sinker loop 13b becomes and the old coil 14 that has formed continuous new coil on the stringer direction.(b) corresponding with Figure 10, for needle loop 13a from the needle latch 6b of open mode move back circle at once before state.(c) expression needle loop 13a moves back circle and and then relatively retreats to the state of the shoulder 6c of knitting needle 6.Sinker loop 13b leaves movable sinker 7, and coil integral body enters tooth mouth 5.This coil hangs over Fig. 9 and blade 6d shown in Figure 10, makes the pinhock 6a that enters the knitting needle 6 of tooth mouth 5 from relative needle-bar 2 enter the gap of blade 6d, thereby can join coil.That is, knitting needle 6 (c) becomes the friendship circle side of barring-on.

Patent documentation 1:JP spy opens flat 6-184889 communique

Patent documentation 2: the international brochure that discloses No. 08/018185

The utility model content

The state of circle before at once that move back shown in Figure 10, no problem when the size of coil is in general scope, but online circle has problems when reducing the increase density braiding of extreme of introducing amount of knitting needle when forming.In increasing the density braiding, because loop length is shorter, became the state that stocking yarn is applied the tension force maximum at once so move back circle, girth stretches.Sinker loop 13b at stocking yarn receiving portion 7h hook is tightened up, so swing arm 7b does not reach the height of needle loop 13a at sinker loop 13b scope swings in the direction that withdraws from significantly from tooth mouth 5, becomes the state of erecting.As shown in the figure, when the front end of the coil formation 7f of portion was higher than pin bottom surface, sinker loop 13b might be along with extracting out from stocking yarn receiving portion 7h near the needle loop 13a on the needle latch 6b.When sinker loop 13b extracted out from stocking yarn receiving portion 7h, needle loop 13a did not stride across needle latch 6b yet and moves back and enclose the shank side, but enters 5 perks of tooth mouth with knitting needle 6.The circle that moves back of needle loop 13a is to make its knocking over needed in order to close needle latch 6b from the outside when newly forming coil, if do not move back circle because of perk, then produces the braiding dropped stitch.

But, make sinker loop 13b be difficult to extract out if for example strengthen the cup depth of coil receiving portion 7h, then extract out under the situation of sinker loop 13b in barring-on, needing shown in Figure 11 (c), if sinker loop 13b does not extract out from stocking yarn receiving portion 7h, then produce stocking yarn and excessively stretched and cause adjacent coil to dwindle, or the fault of stocking yarn fracture.

The purpose of this utility model provides a kind of movable sinker and straight-bar machines, and described movable sinker also can be accepted sinker loop by the coil receiving portion reliably when increasing the density braiding, can extract sinker loop out from the coil receiving portion when barring-on.

The utility model provides a kind of movable sinker, by near the support that is provided with the tooth oral-lateral ora terminalis of latch needles as the needle-bar of the straight-bar machines of knitting needle, can swing the support sector that supports with displacement between swing arm and the movement arm, described latch needles utilizes the rotation of needle latch that the pinhock with respect to tooth mouth advance and retreat is opened and closed, advance to the tooth mouth by spring energized so that swing arm, and can swing arm be retreated from the tooth mouth

The swing arm that is roughly arc shape has:

Coil formation portion is located at and comprises apart from the air line distance of the oscillation center of the support sector outer rim for the certain limit in maximum interval, forms the sinker loop of coil;

Leading section is located at the front of arc shape with respect to coil formation portion, and is littler apart from the air line distance of oscillation center than coil formation portion apart from the air line distance of oscillation center; And

The stocking yarn receiving portion between online circle formation portion and the leading section, is formed on the front opening of arc shape, in the depression that the base end side of arc shape deepens, and the stocking yarn that becomes sinker loop that coil is formed portion is pressed into and accepts to the below of tooth mouth,

Introduced stocking yarn and form needle loop from the tooth mouth by pinhock, and online circle formation portion is when forming sinker loop, the upper limit that restriction retreats from the tooth mouth is characterized in that so that stocking yarn does not break away from from described certain scope,

In the described upper limit, the depression depths of stocking yarn receiving portion reaches the height above the pin bottom surface of latch needles advance and retreat,

And with the width of depression in open side than the more open mode in depths, the inner edge inclination of the side that links to each other with coil formation portion side in the inner edge of the both sides of depression.

Of the present utility model in addition being characterised in that, the depression depths of described stocking yarn receiving portion reach the height of the center of rotation of the needle latch that surpasses described latch needles in the described upper limit.

Of the present utility model in addition being characterised in that, in the described stocking yarn receiving portion, the degree of depth of depression is greater than the width at the front opening of described arc shape.

Of the present utility model in addition being characterised in that is being set up in parallel under the situation of described knitting needle with the needle gage that is equivalent to 14～16 plane No. on the needle-bar of described straight-bar machines,

Described stocking yarn receiving portion is more than the 1mm to the degree of depth of the base end side depression of the described Zhou Fangxiang of described coil formation portion.

And the utility model provides a kind of straight-bar machines, it is characterized in that possessing aforesaid movable sinker.

The utility model effect

According to the utility model, in the movable sinker, stocking yarn is introduced when forming needle loop, online circle formation portion formation sinker loop from the tooth mouth by pinhock at swing arm, even in order to make stocking yarn not break away from and limited the upper limit that retreats from the tooth mouth from this certain scope, the depression depths of stocking yarn receiving portion also reaches the height above the pin bottom surface of latch needles advance and retreat.Because the degree of depth of depression is abundant, even therefore when increasing the density braiding in order to move back circle, crossed the needle loop institute tractive of needle latch, the stocking yarn receiving portion is by to the direction pull-up of withdrawing from from the tooth mouth, also can make sinker loop be difficult to extract out, make needle loop move back circle and knocking over when new coil forms.Owing in the open mode of front, the inner edge of the side that links to each other with coil formation portion side in the inner edge of both sides of depression is tilted with the width of stocking yarn receiving portion, therefore when barring-on, can sinker loop be extracted out along the inner edge of the inclination of caving in.

In addition according to the utility model, when the coil formation portion by movable sinker forms sinker loop, limiting under the state of the upper limit that retreats from the tooth mouth in order to make stocking yarn not exceed described certain scope, the depression depths of stocking yarn receiving portion reaches the height above the center of rotation of needle latch.Even the needle loop of the coil that coil is intensive is owing to the front end that strides across the needle latch of opening is positioned at the higher position, sinker loop also can reach the higher position, can not cause stocking yarn overtension follow.

Therefore according to the utility model, for the stocking yarn receiving portion, the depth ratio of depression is big at the width of the front opening of arc shape in addition, can be difficult to extract out hook under the state of sinker loop.

According to the utility model, for movable sinker, the degree of depth of coil receiving portion depression is deep to more than the 1mm, can accept sinker loop under the state that is difficult to extract out in addition.

And, when increasing the density braiding, also can accept sinker loop reliably in the coil receiving portion according to the utility model, do not produce the movable sinker of obstacle in the time of can on straight-bar machines, barring-on being set yet.

Description of drawings

Fig. 1 is with movable sinker 7 contrasts of the shape of the movable sinker 17 of an embodiment of the present utility model and prior art and the side view and the partial top view of expression.

Fig. 2 is the side view of shape of the swing arm 17b of expression movable sinker 17 shown in Figure 1.

Fig. 3 is near the fragmentary side cross-sectional view of the formation the tooth mouth 5 of straight-bar machines 21 of the expression movable sinker 17 that possesses Fig. 1.

Fig. 4 is the reach the standard grade fragmentary side cross-sectional view of the operating state of circle when forming of the straight-bar machines 21 that is illustrated in Fig. 3.

Fig. 5 is illustrated in the fragmentary side cross-sectional view of moving back the operating state of circle before at once on the straight-bar machines 21 of Fig. 3.

Fig. 6 is the fragmentary side cross-sectional view of the operating state when being illustrated in barring-on on the straight-bar machines 21 of Fig. 3.

Fig. 7 is the partial side view that is illustrated on the straight-bar machines 21 of Fig. 3 with the critical piece of movable sinker 17 associated.

Fig. 8 is the allocation plan that is illustrated in the example of the triangle that carries on the cam carrier of straight-bar machines 21 of Fig. 3.

Fig. 9 is illustrated in the fragmentary side cross-sectional view that forms the state of coil on the straight-bar machines 1 of the movable sinker 7 that possesses prior art.

Figure 10 is illustrated in the fragmentary side cross-sectional view of moving back the operating state of circle before at once on the straight-bar machines 1 of Fig. 9.

Figure 11 is a partial top view of schematically representing the operating state of movable sinker 7.

Label declaration

2 needle-bars

4 needle plates

5 tooth mouths

6 knitting needles

The 6a pinhock

The 6b needle latch

8 guide spacing blocks

Triangle before 11 sinkers

12 sinker Vee formations

The 13a needle loop

The 13b sinker loop

17 movable sinkers

17a support sector

The 17b swing arm

The 17d oscillation center

The 17e spring

17f coil formation portion

17h stocking yarn receiving portion

17i inclination inner edge

The specific embodiment

Below, in Fig. 1～figure, describe for the straight-bar machines 21 that possesses as the movable sinker 17 of an embodiment of the present utility model.In the present embodiment, with reference to label, also the repetitive description thereof will be omitted sometimes to identical with the corresponding part of Fig. 9～Figure 11 mark.In addition, Fig. 4 is respectively corresponding state with Fig. 9, Fig. 5 and Figure 10.

[embodiment]

Among Fig. 1 two kinds of movable sinker contrasts are represented (a) shape of the movable sinker 17 of an expression embodiment of the present utility model, (b) presentation graphs 9 and movable sinker 7 shown in Figure 10.In addition, only (a) illustrates vertical view and side view, and side view (b) only is shown.In addition, the shape of movable sinker 7,17 illustrates 14 plane No. usefulness, but the shape that other plane No. such as 16 plane No. are used is also substantially the same.Between movable sinker 7 and movable sinker 17, except the swing arm 7b that extends to a side from the 7a of support sector, 17a, the part of 17b, operating member 7c, 17c, oscillation center 7d, 17d, the 7e of spring portion, 17e form roughly the samely.At swing arm 7b, 17b is provided with the coil formation 7f of portion, 17f, leading section 7g, 17g and stocking yarn receiving portion 7h, the 17h this point is also identical.In the movable sinker 17, the stocking yarn receiving portion 7h of stocking yarn receiving portion 17h and movable sinker 7 is in a ratio of darker depression, and this depression opens in the bigger mode of peristome width to compare the depths, and the inner edge that links to each other with the front end of the coil formation 17f of portion becomes the inclination inner edge 17i of inclination.The open angle θ of depression of stocking yarn receiving portion 17h for example is 30 degree, 16 plane No. with in be 25 to spend.

Among Fig. 2, the shape of swing arm 17b of the movable sinker 17 of Fig. 1 (a) expression is shown with solid line, the shape of the movable sinker 7 of Fig. 1 shown in broken lines (b) expression, thereby with the two contrast expression.Basically, movable sinker 7,17 is approaching identical shaped, only near the shape difference stocking yarn receiving portion 7h, the 17h.The oscillation center 17d that the coil formation 17f of portion is arranged on the track that comprises when swing distance is that radius R, air line distance are on the outer rim in maximum interval.Stocking yarn receiving portion 17h caves in to the base end side of Zhou Fangxiang with width W, the depth D of peristome.Width W is about 0.87mm in 14 plane No. times spent, is about 0.77mm in 16 plane No. times spent.Depth D is about 1.06mm in 14 plane No. times spent, is about 1.00mm in 16 plane No. times spent.Therefore, depth D is more than the 1mm, and to compare depth D bigger with width W.But, if depth D has been guaranteed the amount that needs, though then width W than D is big can be not influential yet.

Stocking yarn receiving portion 17h links to each other with the front end of the coil formation 17f of portion through inclination inner edge 17i, therefore the coil formation 17f of portion compares the coil formation 7f of portion that dotted line is represented, make greatly, be formed on fully and move back inner edge that when circle etc. can prevent that sinker loop 13b from extracting out and the barrier between the outer rim apart from the air line distance R of oscillation center 17d.In addition, the depth D of stocking yarn receiving portion 17h reaches about half of scope of the coil formation 17f of portion.

Fig. 3 simplifies and the summary of the straight-bar machines 21 of the movable sinker 17 shown in (a) of representing to possess Fig. 1 constitutes near the parts the tooth mouth 5.Below, Fig. 4～Fig. 7 also represents the movable sinker 17 that 14 plane No. are used, but the movable sinker of using for other plane No. such as 16 plane No. 17, elemental motion is also identical.In addition, also be provided with guide spacing block 8 etc. with movable sinker 17, but omitted diagram.Be not hang with stocking yarn on the stocking yarn receiving portion 17h nor the state fully freely of the restriction that triangle 11 and sinker Vee formation 12 produce before being subjected to the sinker of cam carrier among the figure, until the bottom butt of the sinker resettlement section 4b of the bottom of swing arm 17b and needle plate 4 and till being limited, the leading section 17g of swing arm 17b enters tooth mouth 5 until lower limit.

Duty when Fig. 4 is illustrated in coil on the straight-bar machines 21 of Fig. 3 and forms.The swing displacement of movable sinker 17 can be carried out between the lower limit shown in the upper limit shown in the solid line and the double dot dash line.The coil formation 17f of portion of movable sinker 17 is provided with as scope utilize the position of stocking yarn guide part 8a guiding stocking yarn of guide spacing block 8 with the outer rim of this swing displacement swing arm 17b near.Even be in the upper limit, the front end of the coil formation 17f of portion also is positioned at the below of pin bottom surface, and therefore the depression depths of stocking yarn receiving portion 17h has formed abundant dark depression as can be known than the height of center of the turning cylinder of needle latch 6b.Therefore, move back when circle,, also sinker loop can be hooked on stocking yarn receiving portion 17h even the depression depths of stocking yarn receiving portion 17a reaches the position higher than the center of rotation of needle latch 6b from the pin bottom surface of knitting needle 6 at the intensive coil of coil.

Fig. 5 is illustrated in and moves back the operating state of circle before at once on the straight-bar machines 21 of Fig. 3.Though there is the restriction of the upper limit of the swing arm 17b that triangle 11 causes before the sinker, because it is positioned at the position higher than Fig. 4, so higher position can reach the ceiling restriction of comparing among Fig. 4 time the, the depression depths of stocking yarn receiving portion 17h.Owing to fully guaranteed the degree of depth, so, also can make sinker loop 13b be difficult to extract out from stocking yarn receiving portion 17h even when increasing the density braiding, make sinker loop 13b approach to height near needle loop 13a from the front end of the coil formation 17f of portion to the depression depths.

When Fig. 6 is illustrated on the straight-bar machines 21 of Fig. 3 barring-on at the operating state of handing over the circle side.By advancing of knitting needle 6, needle loop 13a moves back circle, and then when moving to the shoulder 6c of knitting needle 6, sinker loop 13b enters tooth mouth 5 with shoulder 6c.Sinker loop 13b extracts out from stocking yarn receiving portion 17h during entering tooth mouth 5.If sinker loop 13b can not extract out from stocking yarn receiving portion 17h, then stocking yarn might exceedingly be stretched, and causes adjacent coil to dwindle, or the stocking yarn fracture.Particularly make adjacent a plurality of coils simultaneously during barring-on, not from the supply of the stocking yarn of adjacent coil, so stocking yarn ruptures easily.On movable sinker 17, sinker loop 13b can be from stocking yarn receiving portion 17h along inclination inner edge 17i along with swing arm 17b lifts and extracts out to counter clockwise direction.

Fig. 7 is illustrated on the straight-bar machines 21 of Fig. 3 the critical piece with movable sinker 17 associated.Spacing block 22 is installed in the mode of the top of covering knitting needle 6.Parts beyond the movable sinker 17 also can be used in combination with movable sinker 7.Compare the increase density braiding of the intensive side of coil, movable sinker 7 is more suitable for the braiding of the sparse side of coil.If change movable sinker 17 and movable sinker 7, then can tackle the braiding of large-scale coil.

Fig. 8 will simplify and will be illustrated in the example of the triangle that carries on the cam carrier of straight-bar machines 21 of Fig. 3 in the face of the triangle configuration of surface one side of needle-bar 2.Wherein, triangle 11 and sinker Vee formation 12 illustrate for last with the direction in the face of the surface of needle-bar 2 before the sinker.This cutting needle is provided with respectively relative needle-bar 2.In addition, also on cam carrier, carry many group triangles sometimes, can only just realize repeatedly action by once advancing.Because cam carrier is back and forth advanced, so the left and right symmetrically formation basically of each triangle.Among the figure, the situation that imaginary cam carrier is advanced with direction from right to left.The knitting needle 6, the movable sinker 17 that are provided with in needle-bar 2 sides relatively move from left to right.

Before sinker, on the triangle 11, in the scope that the swing arm 17b of needs restriction movable sinker 17 withdraws from from tooth mouth 5, restriction protuberance 11a, 11b are set.On sinker Vee formation 12, be provided with and switch triangle 12a, 12b and mobile triangle 12c.Switch triangle 12a, 12b with advancing of cam carrier towards a side effect, the mode interlock that the opposing party does not act on.Among the figure, the movement arm 17c of the switching triangle 12a of left pushing movable sinker 17 makes swing arm 17b withdraw from from tooth mouth 5.When switching triangle 12a the pushing of operating member 17c being disappeared, enter tooth mouth 5 again at the application of force bottom swing arm 17b of spring 17e, sinker loop 13b is hooked on stocking yarn receiving portion 17h and is depressed.

As the triangle that acts on knitting needle 6, be provided with knitting cam 23 and hand over circle triangle 24.In the knitting cam 23, the sitch cam 23a about comprising, 23b, rise cam 23c, adapter ring triangle 23d.Among sitch cam 23a, the 23b, cam carrier advance towards opposition side act on the pin heel of knitting needle 6, enter tooth mouth 5 by rise cam 23c, introduce the supply of accepting stocking yarn knitting needle 6 pinhock 6a and form coil.In the phase place shown in the figure A, carry out coil shown in Figure 4 and form.With the continuous right lateral of this left lateral during, under the effect of switching triangle 12b, the needle loop 13b that the online circle formation 17f of portion forms transfers to stocking yarn receiving portion 17h, becomes the state shown in Figure 11 (a).

During the left lateral shown in the figure, become the coil of the state of Figure 11 (a), when knitting needle 6 enters tooth mouth 5 sides under the effect of rise cam 23c, become the state of circle before at once that move back shown in Fig. 5, Figure 11 (b) in the phase place shown in the B.During the further left lateral of cam carrier, needle loop 13a shifts from the rearward shank of needle latch 6b.But under the effect that rise cam 23c produces, needle loop 13a does not move to shoulder 6c, if knitting needle 6 is by drop-down, then from outer side closure needle latch 6b, after forming new needle loop 13a on the pinhock 6a, strides across pinhock 6a and becomes old coil 14.

Being used for the friendship circle side of barring-on, on knitting needle 6, hand over circle triangle 24 to act on the pin heel that the pin of comparing the knitting cam effect is called in person and is provided with on the front, make knitting needle 6 further enter tooth mouth 5.Knitting cam 23 and friendship circle triangle 24 can switch by haunting of a part of triangle.In the phase place shown in the C, become the state shown in Fig. 6 and Figure 11 (c).On movable sinker 17, inclination inner edge 17i is set, sinker loop 13b is extracted out from stocking yarn receiving portion 17h easily.

As mentioned above, on the straight-bar machines 21 that possesses movable sinker 17 of the present utility model, under ceiling restriction state when the online circle of the height of depression depths of coil receiving portion 17h is formed than pin bottom surface height, can surpass existing increase density boundary thus, on identical straight-bar machines, form littler coil, when barring-on, also do not produce obstacle.Especially,, the width to the fine and closely woven side of coil is increased, thereby be suitable for the braiding of the intensive coil of coil for the scope of the swing of movable sinker 17.In existing movable sinker 7, in order to make the intensive coil of coil move back circle reliably, need add the elastic force that big spring produces, or strengthen the lower pulling force of the pull device generation of the knitted fabric that is provided with at tooth mouth 5, thereby prevent that sinker loop 13b from coming off from stocking yarn receiving portion 7h.And in movable sinker 17, do not need to strengthen like this elastic force, and therefore can within reasonly push the fine rule circle powerfully, improve the knitted fabric quality.In addition, because by the spring application of force suitably, therefore the excessive lower pulling force that can avoid pull device to produce can alleviate the load of pull device, and avoid the distortion etc. of knitted fabric and improve quality.

Claims (6)

1. movable sinker, by near the support that is provided with the tooth oral-lateral ora terminalis of latch needles as the needle-bar of the straight-bar machines of knitting needle, can swing the support sector that supports with displacement between swing arm and the movement arm, described latch needles utilizes the rotation of needle latch that the pinhock with respect to tooth mouth advance and retreat is opened and closed, advance to the tooth mouth by spring energized so that swing arm, and can swing arm be retreated from the tooth mouth

The swing arm that is roughly arc shape has:

Coil formation portion is located at and comprises apart from the air line distance of the oscillation center of the support sector outer rim for the certain limit in maximum interval, forms the sinker loop of coil;

Leading section is located at the front of arc shape with respect to coil formation portion, and is littler apart from the air line distance of oscillation center than coil formation portion apart from the air line distance of oscillation center; And

The stocking yarn receiving portion between online circle formation portion and the leading section, forms in the front opening of arc shape and the depression that deepens at the base end side of arc shape, and the stocking yarn that becomes sinker loop that coil is formed portion is pressed into and accepts to the below of tooth mouth,

Introduced stocking yarn and form needle loop from the tooth mouth by pinhock, and online circle formation portion is when forming sinker loop, the upper limit that restriction retreats from the tooth mouth is characterized in that so that stocking yarn does not break away from from described certain scope,

In the described upper limit, the depression depths of stocking yarn receiving portion reaches the height above the pin bottom surface of latch needles advance and retreat,

And with the width of depression in open side than the more open mode in depths, make the inner edge inclination of the side that links to each other with coil formation portion side in the inner edge of both sides of depression.

2. movable sinker according to claim 1 is characterized in that,

The depression depths of described stocking yarn receiving portion reaches the height of the center of rotation of the needle latch that surpasses described latch needles in the described upper limit.

3. movable sinker according to claim 1 is characterized in that,

In the described stocking yarn receiving portion, the degree of depth of depression is greater than the width at the front opening of described arc shape.

4. movable sinker according to claim 2 is characterized in that,

In the described stocking yarn receiving portion, the degree of depth of depression is greater than the width at the front opening of described arc shape.

5. according to each described movable sinker in the claim 1～4, it is characterized in that,

Be set up in parallel under the situation of described knitting needle with the needle gage that is equivalent to 14～16 plane No. on the needle-bar of described straight-bar machines,

Described stocking yarn receiving portion is more than the 1mm to the degree of depth of the base end side depression of the described Zhou Fangxiang of described coil formation portion.

6. a straight-bar machines is characterized in that, possesses each described movable sinker in the claim 1～4.

Images