CN102345207A

CN102345207A - Guide needle assembly of knitting machine, especially Raschel warp knitting machine

Info

Publication number: CN102345207A
Application number: CN2010105063649A
Authority: CN
Inventors: K·米斯塔
Original assignee: Karl Mayer Textilmaschinenfabrik GmbH
Current assignee: Karl Mayer Textilmaschinenfabrik GmbH
Priority date: 2010-07-31
Filing date: 2010-10-12
Publication date: 2012-02-08
Anticipated expiration: 2030-10-12
Also published as: DE102010032997B4; DE102010032997A1; CN102345207B

Abstract

The invention provides a guide needle assembly of a knitting machine, especially a Raschel warp knitting machine, which comprises a holding device and a plurality of guide needles (4) arranged on the holding device. Each guide needle (4) has a bending transducer arrangement, through which at least a portion of the guide needle is displaceable in a movement direction. Each guide needle (4) also has two stops assigned to limit the displacement of the above portion of the guide needle in the movement direction. Due to the adoption of the above arrangement, the disruption risk of the knitting machine is low while the knitting machine is high in fineness. For this purpose, the stops are transversely staggered arranged in the movement direction outside the movement space of the guide needles (4) and each guide needle (4) is respectively connected with a projection (13) projecting transversely in the movement direction and in an intermediate space between every two adjacent guide needles matched with the stops.

Description

Knitting machine is the sley point device of Raschel looms particularly

Technical field

The present invention relates to the particularly sley point device of Raschel looms of a kind of knitting machine; Have maintenance equipment and be arranged on a plurality of sley points on this maintenance equipment; Wherein each sley point all has crooked change device (Biegewandleranordnung); At least a portion sley point can be shifted along moving direction through said crooked change device; Each sley point all is equipped with two backstops, and these backstops limit said part and are shifted along moving direction.

Background technology

This sley point device is for example known by DE 41 26 899 C1.The maintenance equipment that has sley point provided thereon is fixed on the sley bar.Utilize crooked change device can make the syringe needle of each sley point with respect to guide bar shogging, thereby utilize this sley point device can realize jacquard control, the guide eye that connects yarn just is arranged on the said syringe needle.The moving direction of the displaceable part of sley point is parallel to the sideslip direction (Versatzrichtung) of sley bar.The moving direction of the said part of sley point can or contrary identical with sideslip direction.

In order to ensure accurately locating sley point, exactly, be its syringe needle of location, under known case, make sley point between two backstop, move.These backstops make that through suitably locating sley point can swing (durchschwingen) between two adjacent splits (Gassen) that pass through knitting needle formation.These backstops are " comb " shape at this, and closer the sley point head place that is positioned at.This makes that number is that the sley point quantity of per unit length is very limited.Number is high more, can be just more little to the space that backstop is used.Therefore these backstop must be constructed very narrow.When number was E32 (per inch has 32 sley points), this moment was used the thick sley point of 0.4mm less than 0.4mm in the space that is used for broach.This backstop is therefore mechanically very insecure.Promptly be this kind situation in the fringe region that particularly in theory only has a half width can supply tooth to use.In reality, this problem is to make comb begin with full tooth, and stop with the gap at present settling mode.But this can make a back sley point device all need an adjacent sections all the time.This can increase again and remains the quality that moves through sley bar.If it is very narrow that tooth is a backstop, will exist at work to cause the impaired danger disturbed.

Summary of the invention

The objective of the invention is to, make to be interfered the work of knitting machine there is very little risk that number is higher simultaneously.

In the sley point device of the said type of the beginning part; The implementation of said purpose does; Make backstop be arranged in outside the space of sley point transverse to moving direction with staggering; And make each sley point all be connected with convexity; Said convexity is transverse to the moving direction projection, and extend in two intermediate spaces of attaching troops to a unit between the backstop of sley point.

Adopt this design can when structure backstop, have the bigger free degree.These backstops are mechanically constructed relatively firmly.They particularly also away from the tight adjacent areas of sley point syringe needle.So just can avoid in yarn distributes, producing and disturb.Operational installing space can obtain better utilization.When using a plurality of sley bar, these pins can be described as and are the fan layout each other, make their syringe needle be in a straight line basically thus.Therefore near syringe needle, have only smaller space can supply to arrange the usefulness of backstop very nearby.Far away more from syringe needle, operational installing space is just many more.

Preferred each backstop all is being maintained on the backstop frame at least two different height.For example, provides that the intermediate space is configured as a recess for the Divider, wherein the groove has a portion extending along a longitudinal

change in depth.Alternatively, groove also can have rectangular cross section.The direction of extension of vertical extension of groove is arranged essentially parallel to vertical extension of sley point.If groove has the degree of depth of variation, then these backstops in its end that deviates from sley point not only along secure alignment on the backstop frame, and be fixed at various height.When being rectangle, these backstops are fixed in its bottom, and the end above its bottom is fixed.These backstops thus mechanically relatively firmly.They overcome, and pulling force is relative with pressure to be supported.

Preferred these backstops are configured in the contact pin, and these backstops make adjacent intermediate space separately, and wherein these contact pin have the surface towards sley point, this surface particularly with the surface in alignment towards sley point (fluchten) of backstop frame.Do not see that so bypass groove the backstop frame has even curface, and do not have the convexity of interference.Owing in fact the risk that this convexity disturbs yarn to distribute is eliminated thus fully.These contact pin thus also at two ends (the vertical extension with groove is a benchmark) is fixed, make they mechanically than the independently dental transition of comb (Kamm) for firmly.These contact pin therefore can be thinner.

Here preferably, the contact pin that is positioned at sley point device edge is 50% of the width of the contact pin that is not arranged on this edge along the width of moving direction.So just can use the sley point device, even there is not adjacent sley point device in its end.The contact pin that will have a half width here is as backstop, because it mechanically can be enough firm.

Preferred groove has crooked bottom.The bottom for example can be circular arc.So can adopt simple mode for example to use to carve milling cutter and make groove.

Preferably make the backstop frame be connected, perhaps construct integratedly with maintenance equipment with maintenance equipment.So between backstop frame and maintenance equipment, adopt simple mode to realize accurate configuration.

Preferred each sley point all is fixed in the needle, and convexity is configured on this needle.Therefore use standard sley point or eye needle guide, and need not to take to be used to provide the special measure of convexity at this.

Preferred protruding width along moving direction is less than needle.Therefore convexity can be thinner than needle.Also can use the contact pin of broad thus, then this contact pin can be designed to be corresponding firmly.

Preferred pin bed board and convexity are constructed integratedly.Needle and convexity for example can adopt injection moulding process to make by plastics.Convexity obtains enough intensity thus, even it is thinner.

Equally advantageously, sley point along the width of moving direction greater than convexity.Can use more firm sley point in this case, and can not make backstop become weak.

Preferred pin bed board and sley point have locking mechanism (Rastgeometrie), protruding just being arranged in the zone of this locking mechanism.For example sley point can be inserted in the groove of needle, this groove side within it has the kayser convexity, and this kayser convexity snaps onto in the groove on the sley point.So sley point is fixed through certain stress, needle is applied to this stress on the sley point.Convexity can be reinforced needle in the zone of locking mechanism, thereby can adopt simple mode to increase confining force at this.

Along the longitudinal 2 observation of sley point, needle preferably ends at identical position basically with the backstop frame in the syringe needle zone of sley point.Needle thereby can in fact extend to the syringe needle of sley point.So just can very reliably sley point be fixed.In fact the sley point bed board ends at identical height with the backstop frame, thereby if situation is like this really, then produces very little ladder.The risk that the yarn distribution is disturbed is corresponding less.

Description of drawings

Combine accompanying drawing to introduce the present invention by preferred embodiment below.Shown in the figure:

Fig. 1 is the stereogram of sley point device;

Fig. 2 illustrates the B part of Fig. 1 with amplifying;

Fig. 3 is the vertical view of sley point device; With

Fig. 4 is that the A-A of Fig. 3 is to cutaway view.

The specific embodiment

For the knitting machine that is shown specifically particularly the sley point device 1 of Raschel looms be fixed on the sley bar 2 shown in only local.Sley point device 1 has maintenance equipment 3, on this maintenance equipment, is provided with a plurality of sley points 4.Each sley point 4 all has the syringe needle 5 that has guide eye 6, and yarn can pass this guide eye at work later on, and this yarn is preferred for making the knitwear that must make to produce decorative pattern.Each sley point 4 all is fixed in the needle 7.Between needle 7 and maintenance equipment 3, all be provided with an only schematically illustrated bending change device 8 to each sley point 4, utilize this bending change device can make the syringe needle 5 of sley point 4 be shifted at least along moving direction.Moving direction is parallel to the longitudinal extension of sley bar 2.As bending change device 8, can use the for example bending change device of piezoelectricity, so on each sley point 4, be provided with one or more this flexural piezoelectric change devices.

Each sley point 4 can be controlled separately.So just can when sley bar 2 motion, make each sley point 4 syringe needle 5 along sideslip direction or with the sideslip direction contrary move.The motion of the syringe needle 5 of sley point 4 thereby overlapping with the motion of sley bar 2, this is for example originally known.

In order to ensure accurately locating syringe needle and sley point 4, each sley point 4 all needs two backstops, and these backstops are the two ends of tracks restriction sley point 4 moving along moving direction.

These stoppers in the current circumstances Formations ended Divider 9 on.Backstop frame 9 is arranged with the space of sley point 4 or its syringe needle 5 transverse to the moving direction (this is perpendicular to the direction of the drawing of Fig. 4) of sley point 4 with staggering.Backstop frame 9 all has a groove 10 that has curved bottom 11 to each sley point 4.The bottom of the cylindrical arc for example, which can be used carved cutter

to open the groove 10.

So adjacent groove 10 is separated from each other by contact pin (Steg) 12.So vertical (this is the direction that is arranged essentially parallel to the longitudinal extension of sley point 4) at groove 10 upward fixes the two ends of these contact pin 12.These contact pin 12 thereby not only be connected with backstop frame 9 with its bottom surface along straight line promptly be this kind situation for dentalation for example, and they have higher mechanical strength with respect to simple tooth.These contact pin 12 thereby can be configured to narrow relatively.

Needle 7 has the convexity 13 that extend in the groove 10.Protruding 13 preferred and needle 7 are constructed integratedly.But it has the width littler than needle 7.Protruding 13 width even can be less than (moving direction along the sley point 4 is observed) thickness of sley point 4 on moving direction.

Each sley point 4 all is inserted in the shrinkage pool 16 on the needle 7.In shrinkage pool 16, be provided with kayser convexity 14, in protruding 14 grooves 15 that extend on the shank of sley point 4 of this kayser.Sley point 4 thereby quilt are fixed in the needle 7 by the kayser bindiny mechanism that kayser protruding 14 and groove 15 constitute.In this case, needle 7 utilizes two

sections

17,18 to apply elastic force to sley point 4.

If convexity 13 is arranged on a certain zone, in this zone, also be provided with kayser convexity 14, correspondingly also be provided with the groove 15 of sley point 4, then section 18 obtains reinforcing, and the bed knife that affacts on the sley point 4 is improved.

Backstop frame 9 relatively closely is arranged on the needle 7.Spacing between needle 7 and the backstop frame 9 can be less than the thickness (being distance from left to right in Fig. 4) of sley point 4.Correspondingly, protruding 13 can keep shorter relatively, are not applied to it thereby do not have bigger lever force here.

Backstop frame 9 with the backstop in contact pin of being configured in 12 is arranged in the space of sley point 4 and needle 7 thereof.Thereby this backstop frame will not disturb this motion.

In the roughly termination part of backstop frame 9, needle 7 also stops, and that is to say, keeps not having the parts of interference around the syringe needle 5 of sley point 4.So just make that can in yarn distributes, produce the risk of disturbing keeps less.

As as described in, backstop is configured in the contact pin 12.Here all the moving direction along sley point 4 forms two backstops in its both sides in each contact pin 12.But along moving direction be positioned at the contact pin 12 of sley point device end ' except.At this, a backstop of each contact pin 12 ' all have only.So this contact pin 12 ' width have only half of other contact pin 12.This is owing to be configured with backstop and can be achieved in contact pin, as as described in, this be because the mechanical strength of these contact pin greater than simple tooth.

Adopt said design correspondingly to be provided with to have high-count the sley point 4 of (Feinheit), and can not have the impaired at work danger of backstop that is used for sley point 4.

Claims

1. the knitting machine sley point device (1) of raschel machine particularly; Have maintenance equipment (3) and be arranged on a plurality of sley points (4) on this maintenance equipment (3); Wherein each sley point (4) all has crooked change device (8); At least a portion sley point (4) can be shifted along moving direction by said crooked change device; Each sley point (4) all is equipped with two backstops; These backstops limit said part and are shifted along moving direction; It is characterized in that; These backstops are arranged in outside the space of sley point (4) transverse to moving direction with staggering; Each sley point (4) all is connected with protruding (13); Said convexity is transverse to the moving direction projection, and extend in two intermediate spaces of attaching troops to a unit between the backstop of sley point.

2. sley point device as claimed in claim 1 is characterized in that, each backstop all is being maintained at least two different height on the backstop frame (9).

3. sley point device as claimed in claim 2; It is characterized in that; These backstops are configured in the contact pin (12); These backstops make adjacent intermediate space (10) separately; Wherein these contact pin (12) have towards the surface of sley point (4), this surface particularly with the surface in alignment towards sley point (4) of backstop frame (9).

4. sley point device as claimed in claim 3 is characterized in that, the contact pin (12 ') that is positioned at the edge of sley point device (1) is 50% of the width of the contact pin (12) that is not arranged on this edge along the width of moving direction.

5. like each described sley point device in the claim 2 to 4, it is characterized in that groove (10) has crooked bottom (11).

6. like each described sley point device in the claim 2 to 5, it is characterized in that backstop frame (9) is connected with maintenance equipment (3), perhaps construct integratedly with maintenance equipment (3).

7. like each described sley point device in the claim 1 to 6, it is characterized in that each sley point (4) all is fixed in the needle (7), and protruding (13) are configured on this needle (7).

8. sley point device as claimed in claim 7 is characterized in that, protruding (13) along the width of moving direction less than needle (7).

9. like claim 7 or 8 described sley point devices, it is characterized in that, sley point (4) along the width of moving direction greater than protruding (13).

10. like each described sley point device in the claim 7 to 9, it is characterized in that needle (7) is constructed with protruding (13) integratedly.

11., it is characterized in that needle (7) has locking mechanism (14,15) with sley point (4) like each described sley point device in the claim 7 to 10, convexity just is arranged in the zone of this locking mechanism (14,15).

12., it is characterized in that along the longitudinal 2 observation of sley point, needle (7) ends at identical position with backstop frame (8) basically in the zone of the syringe needle (5) of sley point (4) like each described sley point device in the claim 7 to 11.