CN110184736A

CN110184736A - Compound needle

Info

Publication number: CN110184736A
Application number: CN201810600104.4A
Authority: CN
Inventors: K.布兰德尔
Original assignee: Karl Mayer Textilmaschinenfabrik GmbH
Current assignee: Carlmeyerstol R & D Co.,Ltd.
Priority date: 2018-02-23
Filing date: 2018-06-12
Publication date: 2019-08-30
Anticipated expiration: 2038-06-12
Also published as: EP3530790A1; CN110184736B; EP3530790B1

Abstract

Present invention illustrates a kind of compound needle (1), have: bar (2), which has longitudinal direction；Hook region (3), the hook region have collection cycle space (4), which limits partially by hook (5)；And the guidance field (6) for needle core, wherein bar (2) has the cross section of the cross section greater than hook region (3), and transitional region (9) are disposed between hook region (3) and bar (2).It is expected that being kept into when being supported on coil formation for the tricot machine equipped with such compound needle is smaller.This is arranged to, transitional region (9) asymmetricly constructs.

Description

Compound needle

Technical field

The present invention relates to a kind of compound needle (Schiebernadel), have: bar, which has longitudinal direction；Hook region, The hook region has collection cycle space (Fangraum), is limited by hook to the tuck space segment；And it is used for needle core (Schieber) guidance field, wherein bar has the cross section of the cross section greater than hook region, and between hook region and bar It is disposed with transitional region.

Background technique

It is so-called that such compound needle is especially used as in the range of warp knit automatic machine and raschel machine in tricot machine Working needle.

In this regard, braider is equipped with compound needle and needle core, wherein each compound needle is associated with needle core, which can guided It is moved in region.

Coil column (Maschenreihe) is sequentially formed when manufacturing knitted fabric.When coil column is completed, coil is located at Collect in cycle space.Then compound needle must rise, to use for the coil of next coil column again.It is arranged in yarn guiding chase comb Then the induction element at place surrounds corresponding compound needle guide line with desired pattern.Collect cycle space then by needle core closure and Compound needle moves downward the coil across the coil column formed before again.

When compound needle rises, the coil newly formed being present in collection cycle space must be from collection cycle space via transition region Domain slides on bar.Here, coil is consumingly widened.It can be widened until the mode of twice or three times of coil size. Broadening is actually inevitable, because the guidance field for needle core needs the corresponding big cross section of bar.

The broadening of coil causes, and tricot machine must apply big power, to push compound needle top to as coil obstacle Trie gram sinker (Wirkplatine) or the direction of La Sheer sinker (Stechklamm) across coil and overcome Yarn tension widens coil.

Summary of the invention

Task of the invention lies in be kept into the load of tricot machine in coil formation smaller.

The task is solved in the following manner using the compound needle of type that beginning refers to, i.e. transitional region asymmetricly structure It makes.

In a kind of asymmetrical structural scheme, the expansion of cross section is in the transitional region between hook region and bar more It realizes, i.e., is on the one hand distributed in longer length about the longitudinal direction of bar and on the other hand in different time points in a section On the different directions of coil, so that widening for coil needs lesser power.

Preferably, transitional region is asymmetricly constructed about extension by least two planes of the longitudinal axis of bar.Two A plane preferably intersects at a right angle.Thus at least four different positions are obtained, when using these position transitional regions Between upper offset act at " inside " of coil, to widen coil.

Preferably, transitional region does not have symmetry.Thus the load of coil is realized, in any situation so as to simultaneously Always only widen coil at the peripheral edge margin of coil narrowly limited relatively or a small amount of peripheral edge margin.

In a preferred manner, transitional region is on side with the first side wall and opposite at it and have the on the side set Two side walls, wherein the first side wall and second sidewall have different initial positions and/or the gradient about the longitudinal axis of bar.Side wall It is in the two sides in tuck space herein, or when from this unilateral observation compound needle of hook, the left and right side in collection cycle space. To the left and then widening for coil is realized to the right or vice versa first as a result,.This will keep to widen the necessary power of coil At smaller.

It is further advantageous that the initial position of second sidewall is arranged in the region of the terminal location of the first side wall.Second side The accurate of the terminal location of the initial position and the first side wall of wall is not necessary unanimously.Two side walls can be completely with its length About 15% to 20% intersection.Coil in one direction widen coil it is opposite and on the direction set when widening beginning Actually terminate.

It is arranged in a kind of advantageous design scheme, guidance field has the first guide rail and the second guide rail and guide rail is in mistake Crossing has different trends in region.Furthermore guide rail guides needle core in the operation of tricot machine.In the height of transitional region middle orbit Degree reduces, and thus collecting cycle space can keep unlimited.The increase of this reduction of height or in the opposite direction height is now right Different variation characteristics is respectively provided with for guide rail, if so that coil can pass through first a guide rail and then be possible to also lead to Another guide rail is crossed to widen.

It is preferred here that the first guide rail has the initial position different from the second guide rail.Thus coil passes through first If a guide rail is widened and then it is possible that widening additionally by the second guide rail.

It is also advantageous that the first guide rail has the gradient and/or curvature different from the second guide rail.Thus it can equally cause Coil is widened at different positions.

Preferably, the first guide rail has initial position, which corresponds to the terminal location of the first side wall.So line Circle widening at the first guide rail abuts directly against coil widening at the first side wall.

It can be set in the corresponding way, the second guide rail has initial position, and the initial position is corresponding to second sidewall Terminal location.Equally so coil widening at the second guide rail abuts directly against coil widening at second sidewall herein.

Detailed description of the invention

The present invention is then described according to preferred embodiment combination drawing.Wherein:

Fig. 1 shows the first design scheme of compound needle, and

Fig. 2 shows the second design schemes of compound needle.

In all figures, identical and element reference symbol having the same that is corresponding to each other.

Specific embodiment

Fig. 1 shows compound needle 1, and wherein Fig. 1 a shows side view and Fig. 1 b shows front view.

Compound needle 1 has bar 2, which has longitudinal direction.In addition, compound needle 1 has hook region 3, the hook region 3 tool There is collection cycle space 4, which limits partially by hook 5.In order to which hook 5 can be drawn through in stitch forming process The coil formed before, usually using needle core, which guides in guidance field 6.Needle core herein for the reason of the visual field not It presents.Guidance field 6 has the first guide rail 7 and the second guide rail 8, and needle core draws between first guide rail 7 and second guide rail 8 It leads.

It can be easy to learn from Fig. 1 a and 1b, hook region 3 has compared to the significant smaller cross section of bar 2.The cross section of bar 2 Size can be entirely twice to three times of size of cross section of hook region 3.

Transitional region 9 is provided between hook region 3 and bar 2, the cross section of compound needle 1 is from hook in the transitional region 9 The cross section in region 3 is expanded to the cross section of bar 2.Cross section is in herein in the sectional plane for being transversely to the machine direction direction direction. Longitudinal direction stretches the end of the closure to collection cycle space 4 from the end of compound needle 10.

Transitional region 9 asymmetricly constructs.As by Fig. 1 a and 1b it is common observe it can be seen that as, transitional region 9 It is asymmetricly constructed about extension by least two planes of the longitudinal axis of bar 2.In a kind of especially preferred design scheme In, transitional region does not have symmetry completely.

This can for example be accomplished by the following way, i.e., transitional region 9 commonly referred to as " conical region " part in With the first side wall 11 and opposite at it and there is second sidewall 12 on the side set on side.In order to simplify subsequent explanation, When from this unilateral observation compound needle 1 of hook 5, the construction of the first side wall 11 is at the right side of compound needle and the construction of second sidewall 12 is multiple At the left side for closing needle.Front side 13 is correspondingly disposed on this side of the hook 5 of compound needle 1, wherein existing with setting relatively Back side 14.Guidance field 6 is arranged in front side 13.

The first side wall 11 is with initial position 15 and second sidewall 12 has initial position 16.It can obtain well in Figure 1b Know, the first side wall 11 and second sidewall 12 have different initial positions 15,16 about the longitudinal axis of bar 2.

It alternatively or additionally can be configured as, the first side wall 11 and second sidewall 12 have not about the longitudinal axis of bar The same gradient.

When that should be transferred to coil on bar 2 from collection cycle space 4 now, which must be widened, and compare because bar 2 has In the bigger cross section in hook region 3.By the structural scheme of presentation, coil is directed first on the first side wall 11 and due to side wall 11 gradient is broadened.When more specifically coil has slightly been widened in one direction (in present case to the right) When slightly widening, then it (in present case to the left) is broadened in the opposite direction in second sidewall 12.Pass through the time Upper front and back is widened, in order to widen power required for coil can be kept into it is smaller.

There is first guide rail 7 first start bit to set the 17, and second guide rail 8 with the second initial position 18.In Figure 1b may be used It learns, two initial positions 17,18 are different and misplace relative to each other along the longitudinal direction.In fig 1 a it can be seen that, 8 phase of the second track Quickly become larger than the first track 7.First track 7 and the second track 8 correspondingly have different trends.This can by with Under type realizes that i.e. the first guide rail 7 has the gradient and/or curvature different from the second guide rail 8.

As in Figure 1b it can be seen that as, the first guide rail 7 is directly coupled at the first side wall 11.In other words, first The terminal location of side wall 11 corresponds to the initial position 17 of the first track 7.In an identical manner, the second track 8 is directly coupled to At second sidewall 12.The initial position 18 of second track 8 corresponds to the terminal location of second sidewall 12.

By constructing guide rail 7,8 in the part of transitional region 9, with the situation with the side wall 11,12 in conical region In similar mode realize coil widen at the first guide rail 7 first and then slightly start later but simultaneously in the second guide rail Widen at 8, wherein widening since the faster of the height of the second guide rail 8 increases herein slightly quickly at the second guide rail 8 It realizes.Even so but it can be kept into widen power required for coil compared to coil Shi Geng little ought be widened simultaneously.

Fig. 2 shows the shapes of the remodeling of compound needle, substantially correspond to the embodiment of Fig. 1.

As in figure 2b it can be seen that as, herein however the overlapping between the first side wall 11 and second sidewall 12 compared with It is small, so that the terminal location 19 of the first side wall 11 is arranged in the region of initial position 16 of second sidewall 12.Two positions 16, 19 need not be accurately consistent.The 15% to 20% of 11,12 length of two side walls is overlapped be completely can with.

Claims

1. a kind of compound needle (1), has: bar (2), the bar have longitudinal direction；Hook region (3), the hook region have tuck empty Between (4), the collection cycle space (4) partially by hook (5) limit；And the guidance field (6) for needle core, wherein the bar (2) there is the cross section of the cross section greater than the hook region (3), and arranged between the hook region (3) and the bar (2) There are transitional region (9), which is characterized in that the transitional region (9) asymmetricly constructs.

2. compound needle according to claim 1, which is characterized in that the transitional region (9) is relative at least two extensions It is asymmetricly constructed by the plane of the longitudinal axis of the bar.

3. compound needle according to claim 2, which is characterized in that the transitional region (9) does not have symmetry.

4. compound needle according to any one of claim 1 to 3, which is characterized in that the transitional region (9) is on side With the first side wall (11) and opposite at it and there are second sidewall (12) on the side set, wherein the first side wall (11) and The second sidewall (12) has different initial positions (15,16) and/or the gradient about the longitudinal axis of the bar (2).

5. compound needle according to claim 4, which is characterized in that the initial position (16) of the second sidewall (12) is arranged In the region of the terminal location (19) of the first side wall (11).

6. compound needle according to any one of claim 1 to 5, which is characterized in that the guidance field (6) has first Guide rail (7) and the second guide rail (8) and the guide rail (7,8) have different trends in the transitional region (9).

7. compound needle according to claim 6, which is characterized in that first guide rail (7) has and second guide rail (8) different initial positions (17).

8. compound needle according to claim 6 or 7, which is characterized in that first guide rail (7) has leads with described second Rail (8) the different gradient and/or curvature.

9. the compound needle according to any one of claim 6 to 8, which is characterized in that first guide rail (7) has starting Position (17), the terminal location of the corresponding the first side wall (11) in the initial position (17).

10. compound needle according to any one of claims 6 to 9, which is characterized in that second guide rail (8) has Beginning position (18), the terminal location of the corresponding second sidewall (12) in the initial position (18).