Textile tool part pair and method for equipping a textile machine

Abstract

A textile tool part pair (15) consisting of two textile tool parts (16) and a method of equipping a textile machine with the aid of such a textile tool part pair (15) are disclosed. Each textile tool part (16) extends in a longitudinal direction (L) between a trailing end (21) and a leading end (22). Proceeding from the trailing ends (21) thereof, the textile tool parts (16) extend away from one another and counter to one another as far as the leading end (22). At the trailing ends (21), the two textile tool parts (16) of a common textile tool part pair (15) are interconnected by a predetermined breaking connection (45). The predetermined breaking connection (45) can be manually separated without tools, in particular by bending about a bending axis (A).

Claims

1. A textile tool part pair (15) consisting of two textile tool parts (16), the two textile tool parts comprising: bodies of the two textile tool parts (16) that are respectively configured for insertion in a guide channel or a tool seating of a textile machine; wherein each of the two textile tool part (16) bodies extends in a longitudinal direction (L) between a front end (22) and a back end (21) and comprises a working section (25) that is arranged at a distance to the back end (21) configured to be used for thread contact and/or loop formation; wherein the two textile tool part (16) bodies are connected with each other at their back ends (21) by a breaking connection (45) that is configured to be separated manually and without use of tools; wherein the textile tool part (16) bodies extend away from each other from the breaking connection (45) to their respective front end (22); wherein the breaking connection (45) comprises at least one web (46) that extends between the two back ends (21) of the two textile tool part (16) bodies; and wherein the two textile tool part (16) bodies and the at least one web (46) of the breaking connection (45) are of a metal or metal alloy material.

2. The textile tool part pair according to claim 1, wherein the breaking connection (45) has a smaller cross-sectional area compared with the back ends (21) of the two textile tool part (16) bodies.

3. The textile tool part pair according to claim 2, wherein the at least one web (46) is configured integrally with the two textile tool part (16) bodies.

4. The textile tool part pair according to claim 2, wherein the at least one web (46) extends between two end surfaces (47) of the back ends (21) facing one another.

5. The textile tool part pair according to claim 1, wherein the breaking connection (45) is configured to allow a bending of the textile tool parts (16) around a bending axis (A) extending orthogonal to the longitudinal direction (L).

6. The textile tool part pair according to claim 1, wherein each of the two textile tool part (16) bodies has a base surface (31) that extends along a common reference plane (E) that is defined by the longitudinal direction (L) and a transverse direction (Q) transverse to the longitudinal direction (L).

7. The textile tool part pair according to claim 6, wherein the breaking connection (45) is configured to allow a bending of the textile tool parts (16) around a bending axis (A) extending orthogonal to the longitudinal direction (L), wherein the bending axis (A) extends orthogonal to the base surfaces (31) of the textile tool part (16) bodies.

8. The textile tool part pair according to claim 7, wherein the common reference plane (E) is a contact plane that is brought into contact with the textile tool part pair (15) from below until the base surfaces (31) extend in the common reference plane (E), whereby no components of the textile tool part pair (15) extend through the common reference plane (E).

9. The textile tool part pair according to claim 1, wherein each of the two textile tool part (16) bodies comprises an abutment surface (49), wherein the abutment surfaces (49) are arranged at a distance to each other prior to separation of the breaking connection (45) and are configured to be brought into abutment against each other after separation of the breaking connection (45), such that the two textile tool parts (16) form a textile tool (18, 19).

10. The textile tool part pair according to claim 9, wherein the textile tool formed from the two textile tool parts (16) is a sinker (18) for a knitting machine.

11. A method for equipping a textile machine with the textile tool part pair (15) of claim 1, the method comprising the following steps: separating the two textile tool parts (16) of the textile tool part pair (15) at the breaking connection (45) manually without use of tools; and inserting the separated textile tool parts (16) in a guide channel (42) or a tool seating of the textile machine.

12. The method according to claim 11, wherein separating the two textile tool parts (16) of the textile tool part pair (15) manually without use of tools is carried out by bending around a bending axis (A) that extends between the two back ends (21) of the two textile tool parts (16).

13. The method according to claim 12, wherein the two separated textile tool parts (16) are inserted in the respective guide channel (42) or the tool seating without further post-processing.

14. The textile tool part pair according to claim 1, wherein a height of the at least one web (46) is smaller than a height of the back ends (21) of the bodies of the two textile tool parts (16).

15. The textile tool part pair according to claim 1, wherein a thickness of the at least one web (46) is smaller than a thickness of the back ends (21) of the bodies of the two textile tool parts (16).

16. The textile tool part pair according to claim 1, wherein the at least one web (46) comprises at least two webs (46) that are spaced apart from one another in a height direction (H), wherein the height direction (H) is orthogonal to the longitudinal direction (L).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Preferred embodiments of the invention are derived from the dependent claims, the description and the drawings. In the following preferred embodiments of the invention are explained in detail with reference to the attached drawings. The drawings show:

(2) FIGS. 1-5 an embodiment of a textile tool part pair respectively having two textile tool parts that are connected with each other at a predetermined breaking connection,

(3) FIGS. 6-8 different embodiments of a predetermined breaking connection in a top view on the textile tool part pair in schematic illustration respectively,

(4) FIGS. 9 and 10 a schematic illustration of an embodiment of a predetermined breaking connection in a lateral view respectively,

(5) FIG. 11 schematic basic illustration of the separation of the predetermined breaking connection by bending about a bending axis and

(6) FIG. 12 a schematic view of a textile tool part in form of a sinker that consists of two separated textile tool parts and is inserted into a guide channel of a textile machine.

DETAILED DESCRIPTION

(7) FIGS. 1-5 show different embodiments of a textile tool part pair 15 respectively consisting of exactly two textile tool parts 16. The two textile tool parts 16 of a textile tool part pair 15 are either an individually usable textile tool 17 or form two textile tool parts 16 that fit together and that together form a textile tool 17. In FIGS. 1 and 2 textile tool part pairs 15 are illustrated respectively in which the two textile tool parts 16 together form one single functional textile tool 17 after insertion in a textile machine, e.g. a sinker 18 (FIG. 1) or a transfer part 19 for transfer of loops. The sinker 18 formed of the two textile tool parts 16 is illustrated schematically in FIG. 12 in top view.

(8) Different to FIGS. 1 and 2, the two textile tool parts 16 according to FIGS. 3-5 already form an individual textile tool 17 respectively and according to the example, a machine knitting needle that is configured as latch needle 20 in the embodiments illustrated here.

(9) The two textile tool parts 16 of each textile tool part pair 15 extend in a longitudinal direction L between a back end 21 and a front end 22. Each textile tool part 16 comprises a working section 25 that gets into contact with a thread during use of the textile tool part 16 in a respective textile machine, particularly during a loop forming process or during transfer or manipulation of loops or a thread and thus contributes to the textile manufacturing and particularly to the loop formation. In the working section 25 the textile tool parts 16 comprise for the formation of the sinker 18 (FIG. 1) a hold-down edge 26 and a knock-over edge 27 respectively that are arranged with distance to each other in a height direction H and substantially above each other. The hold-down edge 26 and the knock-over edge 27 extend substantially in longitudinal direction L and/or parallel with each other according to the example. The hold-down edge 26 and the knock-over edge 27 are facing each other. They limit a holding space 28 that is open in longitudinal direction toward the front end 22.

(10) The textile tool part 16 extends in height direction H in the working section 25 between a bottom edge 29 and a top edge 30 for forming the sinker 18. The bottom edge 29 and the top edge 30 are orientated parallel to one another according to the example. The bottom edge 29 extends in longitudinal direction L and also comprises an extension in a transverse direction Q orthogonal to the height direction H and orthogonal to the longitudinal direction L. The bottom edge 29 forms a base surface 31 of the textile tool part 16.

(11) As apparent from FIG. 1, the two base surfaces 31 of the textile tool parts 16 of the common textile tool part pair 15 extend in a common reference plane E that is defined by the longitudinal direction L and the transverse direction Q. Preferably no components of the textile tool part pair 15 extend through the reference plane E. The reference plane E is a contact plane according to the example that is brought into contact from below with the bottom edges 29 or base surfaces 31 until the bottom edges 29 or the base surfaces 31 extend in the reference plane E. This has the advantage that both bottom edges 29 or base surfaces 31 of the common textile tool part pair 15 can be used as common support surface during manufacturing of the two textile tool parts 16, e.g. during transport of the parts or during arrangement in a machine tool.

(12) As apparent from FIGS. 1-5, the working section 25 of each textile tool part 16 is arranged with distance to the back end 21 and is preferably located closer to the front end 22 as to the back end 21. In some embodiments the working section 25 can directly adjoin the respective front end 22, e.g. in the textile tool part 16 for forming the transfer parts 19 (FIGS. 2 and 3) as well as in the latch needles 20 (FIGS. 4 and 5).

(13) In the working sections 25 of the textile tool parts 16 for forming the transfer parts 19 a loop holding recess 34 is present respectively that is open toward the top. The textile tool part 16 forms a transfer hook 35 for forming the transfer part 19 that tapers toward the front end 22 and that is curved, for example, below the loop holding recess 34 (with view in height direction H).

(14) In the latch needles 20 shown in FIGS. 4 and 5 a needle hook 36 is arranged in the working section 25 respectively at which the front end 22 of the textile tool part 16 is located. The hook inner region of the needle hook 36 can be opened by a latch 37 (as illustrated in FIGS. 4 and 5) or can be closed by pivoting the latch 37.

(15) Each textile tool part 16 comprises a drive section 40 between the working section 25 and the back end 29. A foot 41 projecting in height direction H is provided in the drive section 40, wherein the foot 41 is configured to cooperate with a cam in the textile machine in order to drive the textile tool, e.g. the sinker 18, the transfer part 19 or the latch needle 20, and to move it in longitudinal direction L along a guide channel 42. The guide channel 42 is schematically and by way of example illustrated in FIG. 12 for the sinker 18.

(16) The textile tool part pair 15 according to FIG. 1 is arranged with distance to the reference plane E outside the bottom edge 29 or base surface 31 in the working section. The bottom edge 29 or the base surface 31 adjoins the front end 22 directly according to the example. Because the two textile tool parts 16 are handled as common textile tool part pair 15 during manufacturing, a support that is resistant against tilting can be achieved by means of the base surfaces 31.

(17) In all textile tool parts 16 of the textile tool part pair 15 according to FIGS. 1-5 a reference plane E forming a contact surface is brought into abutment from below against the base surfaces 31 of the textile tool parts 16, whereby no components of the respective textile tool part pair 15 extend through the reference plane E.

(18) The base surfaces 31 can be continuous without interruptions in longitudinal direction L (FIGS. 1-4) or can be separated into multiple sections by means of an interruption (FIG. 5). In the embodiment according to FIG. 1, the base surfaces 31 are arranged close to the front end 22 or directly adjoining the front end 22 and comprise a larger distance to the respective back end 21 as to the front end 22. In another embodiment the base surface 31 can be arranged closer to the back end 21 than to the front end 22 (FIG. 3). In still other embodiments the base surface 31 can extend nearly completely from the front end 22 or at least from the working section 25 up to the back end 21 (FIGS. 2 and 4).

(19) At the back ends 21 facing each other, the two textile tool parts 16 of a common textile tool part pair 15 are connected with each other by means of a predetermined breaking connection 45. The textile tool part pair 15 is thus a unit, whereby the two textile tool parts 16 of the textile tool part pair 15 are produced and transported during manufacturing together as one unit. The predetermined breaking connection 45 is separated only directly before the arrangement of the textile tool parts 16 in a textile machine.

(20) Preferably the two textile tool parts 16 of a common textile tool part pair 15 can be configured symmetrically with reference to symmetry plane S. The symmetry plane can extend centrally between the two textile tool parts 16 and can be orientated orthogonal to the longitudinal direction L.

(21) In the embodiment according to FIG. 1 the bottom edges 29 of the textile tool part 16 have different lengths in order to be able to distinguish the textile tool part 16 after separation. Alternatively or additionally, also other geometric features and/or markings can be provided by means of which two textile tool parts 16 of a common textile tool part pair 15 can distinguish from each other. For example, a notch 44 or another marking can be introduced or arranged in a foot 41 or at another suitable location of one of the two textile tool parts 16.

(22) The predetermined breaking connection 45 is illustrated in FIG. 6-11 by way of example. It is configured to be separated manually and without use of tools. Also a tool can be used for separation, however this is not necessary.

(23) The predetermined breaking connection 45 is formed by at least one web 46 according to the example that extends between the back ends 21 of the two textile tool parts 16. The at least one web 46 has a smaller dimension in transverse direction Q and/or in height direction H as the two directly adjoining back ends 21. Thus, it forms a weakness that can be separated or broken. The dimensioning of the at least one web 46 is selected such that it can be separated or broken manually and without use of tools by an operating person during equipping of a textile machine.

(24) According to the example, each back end 21 of a textile tool part 16 has an end surface 47, whereby the at least one web 46 extends between the two end surfaces 47 facing each other. The end surfaces 47 extend, according to the example, parallel to the height direction H and can be orientated substantially orthogonal to the longitudinal direction L (FIGS. 7, 9 and 10) or can be orientated obliquely inclined with regard to the longitudinal direction L and/or the transverse direction Q, wherein the angle between the end surfaces 47 and the longitudinal direction L is preferably deviating from the right angle about at most 20? or at most 10?.

(25) The at least one web 46 is preferably integrally configured with the two textile tool parts 16. Thus, the at least one web 46 comprises no seam or joint location. Preferably the textile tool part pair 15 as a whole is configured integrally or manufactured integrally. The at least one predetermined breaking connection 45 that is formed by the at least one web 46 according to the example, can be created by a chip removing process and/or a stamping process and/or a forming process. Preferably the at least one web 46 is formed by a stamping process and/or a forming process (e.g. embossing) between the two back ends 21 or the two end surfaces 47.

(26) As apparent from FIG. 9, one single web 46 can be provided that extends between the two back ends 29 or the two end surfaces 47. Alternatively thereto, it is also possible to provide multiple webs 46 that are arranged with distance to each other in height direction H. Preferably the predetermined breaking connection 45 does not comprise a multiplicity of webs 46 arranged adjacent to one another in transverse direction Q. If multiple webs 46 are provided, they are particularly exclusively arranged adjacent to one another in height direction H.

(27) The shape of a recess or an embossment between the two back ends 21 or the two end surfaces 47 for forming of a web 46 that is thinner in transverse direction Q relative to the back ends 21 can vary, as schematically illustrated in FIGS. 6-8 by way of example. The recess or opening provided on opposite sides of the at least one web 46 in transverse direction Q can have a rounded shape with parallel or inclined legs extending obliquely with regard to each other (compare e.g. FIG. 6). The depression can alternatively thereto also have a rectangular cross-section (FIG. 7) or another polygonal cross-section, e.g. a trapezoidal cross-section (FIG. 8).

(28) In the preferred embodiment the predetermined breaking connection 45 is configured to define a bending axis A that extends in height direction H according to the embodiment. During bending of the two textile tool parts 16 around the bending axis A the at least one web 46 of the predetermined breaking connection 45 breaks, such that the two textile tool parts 16 are separated from each other. Preferably the predetermined breaking connection 45 or the at least one web 46 is configured such that a bending around an axis is impeded that is orientated parallel to the transverse direction Q or parallel to the longitudinal direction L. Preferably the total height of the at least one web 46, that is of one single web 46 or of all of the present webs 46, is higher than its dimension in longitudinal direction L and/or in transverse direction Q.

(29) The bending of the two textile tool parts 16 of a common textile tool part pair 15 around the bending axis A is schematically illustrated in FIG. 11, wherein the bending axis A extends orthogonal to the drawing plane.

(30) After the separation of the predetermined breaking connection 45, a breaking part 48 or a breaking surface of the broken web 46 remains at each back end 21 or each end surface 47 of the two textile tool parts 16 (FIGS. 11 and 12). The textile tool parts 16 are inserted into the textile machine or in the respective guide channel 42 without further post-processing, as illustrated in FIG. 12. The remaining breaking parts 48 or breaking surfaces at the back ends 21 are uncritical for the use of the textile tool parts 16 in the textile machine. They are distanced from the working section 25 and do not get into contact with the at least one thread during the textile production. They are also not in contact with the guiding surface of the guide channel 42 such that no increased wear is created by the breaking parts 48 or the breaking surfaces of the broken web 46.

(31) During equipping of a textile machine the at least one textile tool part pair 15 is taken from a stock, the two textile tool parts 16 are separated from each other by separating the predetermined breaking connection 45 and the two textile tool parts 16 can be inserted in the assigned guide channel 42 without further subsequent post-processing.

(32) In the embodiment illustrated in FIGS. 1 and 12 the two textile tool parts 16 are at least in sections arranged in a common guide channel 42 and together form a sinker 18. For this each textile tool part 16 comprises an abutment surface 49, wherein the two abutment surfaces 49 abut against each other for forming the sinker 18 (FIG. 12). In the embodiment the two abutment surfaces 49 extend at least along the drive section 40 of each textile tool part 16. Each abutment surface 49 is orientated parallel to the longitudinal direction L and parallel to the height direction H. The abutment surfaces 49 can be particularly configured without openings and provide a two-dimensional contact between the two textile tool parts 16.

(33) Also in the embodiment illustrated in FIG. 2 the two textile tool parts 16 are configured to be brought into abutment against one another with their abutment surfaces 49 in order to form the transfer part 19.

LIST OF REFERENCE SIGNS

(34) 15 textile tool part pair 16 textile tool part 17 textile tool 18 sinker 19 transfer part 20 latch needle 21 back end 22 front end 25 working section 26 hold-down edge 27 knock-over edge 28 holding space 29 bottom edge 30 top edge 31 base surface 34 loop holding recess 35 transfer hook 36 needle hook 37 latch 40 drive section 41 foot 42 guide channel 44 notch 45 predetermined breaking connection 46 web 47 end surface 48 breaking part 49 abutment surface A bend axis E reference plane H height direction L longitudinal direction Q transverse direction S symmetry plane