Stitch-forming element and stitch-forming textile machine

Abstract

A stitch forming element for a stitch-forming textile machine, wherein the textile machine includes a stitch-forming element carrier with at least one guide channel for guiding at least one stitch-forming element. The stitch-forming element includes a longitudinal axis and a vertical axis and a first recess with a lower edge, an upper edge, an open first end and a closed second end for stitch formation. The stitch-forming element further includes a second recess with a lower edge, an upper edge, an open first end and a closed second end for cleaning the at least one guide channel. The stitch-forming textile machine includes a stitch-forming element carrier with at least one guide channel, and at least one such stitching element. The least one stitch-forming element with its second recess is guided in the at least one guide channel.

Claims

1. A stitch-forming element for a stitch-forming textile machine, wherein the textile machine includes a stitch-forming element carrier with at least one guide channel for guiding at least one stitch-forming element, the stitch-forming element comprising: a longitudinal axis, and a vertical axis orthogonal to the longitudinal axis; a head section and a shaft section arranged on opposite longitudinal ends of the stitch-forming element, wherein the head section defines an upstream direction relative to the shaft section; a first recess on the head section, the first recess including a lower edge, an upper edge spaced from the lower edge, an open first end, and a closed second end for stitch formation; and a second recess on the head section, the second recess comprising a lower edge, an upper edge spaced from the lower edge, an open first end, and a closed second end; wherein the lower edge of the second recess is arranged at an angle to the longitudinal axis for cleaning the at least one guide channel; and wherein the second recess defines an opening angle between the upper edge and the lower edge, and the opening angle is greater than 5 degrees.

2. The stitch-forming element of claim 1, wherein the opening angle is greater than 10 degrees.

3. The stitch-forming element of claim 1, wherein the opening angle is approximately 12 degrees.

4. The stitch-forming element of claim 1, wherein the second end of the second recess in the longitudinal direction is arranged upstream of the second end of the first recess on the head section side.

5. The stitch-forming element of claim 1, wherein at least one of the lower edge or the upper edge terminate one above the other at the first end of the second recess.

6. A stitch-forming element for a stitch-forming textile machine, wherein the textile machine includes a stitch-forming element carrier with at least one guide channel for guiding at least one stitch-forming element, the stitch-forming element comprising: a longitudinal axis, and a vertical axis orthogonal to the longitudinal axis; a head section and a shaft section arranged on opposite longitudinal ends of the stitch-forming element, wherein the head section defines an upstream direction relative to the shaft section; a first recess on the head section, the first recess including a lower edge, an upper edge spaced from the lower edge, an open first end, and a closed second end for stitch formation; and a second recess on the head section, the second recess comprising a lower edge, an upper edge spaced from the lower edge, an open first end, and a closed second end; wherein the lower edge of the second recess is arranged at an angle to the longitudinal axis for cleaning the at least one guide channel; wherein the first recess is closed at the second end in an arc shape having a first radius; wherein the second recess is closed at the second end in an arc shape having a second radius; and wherein the second radius is larger than the first radius.

7. The stitch-forming element of claim 1, wherein the second recess is arranged in a lower half of the head section of the stitch-forming element.

8. A stitch-forming textile machine, comprising: a stitch-forming element carrier with at least one guide channel; and at least one stitch-forming element according to claim 1 received on the stitch-forming element carrier; wherein the at least one stitch-forming element is guided with its second recess in the at least one guide channel.

9. The textile machine of claim 8, wherein: the at least one stitch-forming element is guided in the at least one guide channel in the longitudinal direction, between an extended first end position and a retracted second end position; and the second recess in the second end position facilitates access to the at least one guide channel.

10. The stitch-forming element of claim 1, wherein: the first recess is closed at the second end in an arc shape having a first radius; the second recess is closed at the second end in an arc shape having a second radius; and the second radius is larger than the first radius.

11. The stitch-forming element of claim 6, wherein the second recess defines an opening angle between the upper edge and the lower edge, and the opening angle greater than 5 degrees.

12. The stitch-forming element of claim 11, wherein the opening angle is greater than 10 degrees.

13. The stitch-forming element of claim 11, wherein the opening angle is approximately 12 degrees.

14. The stitch-forming element of claim 6, wherein the second end of the second recess in the longitudinal direction is arranged upstream of the second end of the first recess on the head section side.

15. The stitch-forming element of claim 6, wherein at least one of the lower edge or the upper edge terminate one above the other at the first end of the second recess.

16. The stitch-forming element of claim 6, wherein the second recess is arranged in a lower half of the head section of the stitch-forming element.

17. A stitch-forming textile machine, comprising: a stitch-forming element carrier with at least one guide channel; and at least one stitch-forming element according to claim 6 received on the stitch-forming element carrier; wherein the at least one stitch-forming element is guided with its second recess in the at least one guide channel.

18. The textile machine of claim 17, wherein: the at least one stitch-forming element is guided in the at least one guide channel in the longitudinal direction, between an extended first end position and a retracted second end position; and the second recess in the second end position facilitates access to the at least one guide channel.

19. A stitch-forming element for a stitch-forming textile machine, wherein the textile machine includes a stitch-forming element carrier with at least one guide channel for guiding at least one stitch-forming element, the stitch-forming element comprising: a longitudinal axis, and a vertical axis orthogonal to the longitudinal axis; a head section and a shaft section arranged on opposite longitudinal ends of the stitch-forming element, wherein the head section defines an upstream direction relative to the shaft section; a first recess on the head section, the first recess including a lower edge, an upper edge spaced from the lower edge, an open first end, and a closed second end for stitch formation; and a second recess on the head section, the second recess comprising a lower edge, an upper edge spaced from the lower edge, an open first end, and a closed second end; the second recess having a longitudinal extent that is greater than a longitudinal extent of the first recess, whereby the second recess facilitates access to the at least one guide channel in a retracted end position of the at least one stitch-forming element within the at least one guide channel; wherein the lower edge of the second recess is arranged at an angle to the longitudinal axis for cleaning the at least one guide channel.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and, together with a general description of the invention given above, and the detailed description given below, serve to explain the principles of the invention.

(2) FIG. 1 shows an exemplary stitch-forming element with a cleaning recess,

(3) FIG. 2 shows an accumulation of dirt in a cleaning recess of a stitch-forming element,

(4) FIG. 3 shows conveying of dirt with the aid of a cleaning recess of a stitch-forming element when the stitch-forming element is displaced in the di-rection of an extended first end position,

(5) FIG. 4 shows ejection of dirt from a cleaning recess of a stitch-forming element when the stitch-forming element is displaced in the direction of a retract-ed second end position,

(6) FIG. 5 shows a blowing out of a guide channel with the stitch-forming element displaced into a first end position in a view from the outside, and

(7) FIG. 6 shows a blowing out of a guide channel with the stitch-forming element displaced into a first end position in a view from the inside.

DETAILED DESCRIPTION

(8) FIG. 1 shows an exemplary stitch-forming element 100 designed as a holding-down and knock-over sinker in accordance with the principles of the present disclosure. The stitch-forming element 100 is used in a stitch-forming textile machine designed as a knitting machine and can be guided and displaced in a guide channel.

(9) The stitch-forming element 100 has a longitudinal axis 102 and a vertical axis 104, a first head section 106, a second head section 107, a first shaft section 108 and a second shaft section 110. The stitch-forming element 100 has a smaller width on the second head section 107 than on the first head section 106 and on the shaft sections 108, 110. The stitch-forming element 100 has a drive section 112, a drive edge 113, a knock-off edge 115, a projecting yarn guide section 114 with a yarn guide edge 117 and a guide section 116. The drive section 112 and the drive edge 113 serve to introduce a driving force in order to displace the stitch-forming element 100 in the longitudinal direction. The drive edge 113 extends between the head section 106 and the first shaft section 108 in the height direction. The drive section 112 is arranged between the first shaft section 108 and the second shaft section 110. The yarn guide section 114 with the yarn guide edge 117 serves to hold down a yarn and is assigned to the head section 106. The guide section 116 serves to guide the stitch-forming element 100 such that it can be displaced in the longitudinal direction in the guide channel, and is assigned to the head section 106.

(10) The stitch-forming element 100 has a stitch-forming recess 144. The stitch-forming recess 144 serves to grip and/or to guide a thread in order to form stitches. The stitch-forming recess 144 is arranged vertically above the guide section 116 and has an open first end 120 and a closed second end 122 in the longitudinal direction and a lower edge 115 and an upper edge 117 in the vertical direction. The lower edge 115 and the upper edge 117 are each straight and arranged parallel to one another and to the longitudinal axis 102. The stitch-forming recess 144 is closed at the second end 122 in a circular arc with a comparatively small radius.

(11) The stitch-forming element 100 has a cleaning recess 118. The cleaning recess 118 serves to remove dirt, such as abraded fibers, from the guide channel during operation of the textile machine. The cleaning recess 118 is arranged on the guide section 116 and has an open first end 120 and a closed second end 122 in the longitudinal direction and a lower edge 124 and an upper edge 126 in the vertical direction.

(12) The lower edge 124 and the upper edge 126 are each straight, have a greater distance from one another in the vertical direction at the first end 120 and a smaller distance from one another at the second end 122 and are arranged open toward one another with an opening angle α=approximately 12 degrees toward the first end 120, so that the cleaning recess 118 is continuously widened from the second end 122 to the first end. The cleaning recess 118 is closed at the second end 122 in a circular arc with a comparatively large radius. The lower edge 124 is arranged at an angle to the longitudinal axis 102, and the upper edge 126 is arranged parallel to the longitudinal axis 102. The second end 122 is upstream of the yarn guide section 114 in the longitudinal direction 102 in the direction of the first end 120.

(13) FIG. 2 shows the stitch-forming element 100 in a stitch-forming textile machine 128 designed as a knitting machine with a stitch-forming element carrier 130. The stitch-forming element carrier 130 has a comb ring with guide channels, such as 132. The stitch-forming element 100 is guided displaceably in the longitudinal direction 102 in the guide channel. The guide channels 132 are arranged on the top of the comb ring at the front and run radially to a longitudinal axis of the stitch-forming element carrier 130.

(14) The guide channels 132 each have a bottom section and two wall sections and are open towards the top of the bottom section. The stitch-forming element 100 is guided with its guide section 116 on the bottom section and between the wall sections of the guide channel. The longitudinal axis 102 of the stitch-forming element 100 and a longitudinal guide channel axis correspond to one another. A height of the guide section 116 of the stitch-forming element 100 and a guide channel height correspond to one another. The knock-over edge 115 and the yarn guide section 114 with the yarn guide edge 117 project above the guide channel 132 in the vertical direction 104, the cleaning recess 118 with the lower edge 124 and the upper edge 126 is arranged inside the guide channel 132.

(15) The stitch-forming element 100 is displaced between an extended first end position and a retracted second end position during operation. As shown in FIG. 2, dirt 134, such as abraded fibers, collects in the cleaning recess 118. In addition, reference is made in particular to FIG. 1 and the associated description.

(16) In the first end position, the cleaning recess 118 projects with its first end 120 in the longitudinal direction 102 inwards over the guide channel 132. As can be seen from FIG. 3, the dirt 134 is conveyed inward with the aid of the cleaning recess 118 when the stitch-forming element 100 is displaced in the direction of the extended first end position in the direction of the arrow 136 and, as shown in FIG. 4, is ejected from a cleaning recess 118 when the stitch-forming element 100 is displaced in the direction of the second end position in the direction of the arrow 138. The angular arrangement of the lower edge 124 assists ejection downwards. In addition, reference is made in particular to FIGS. 1 to 2 and the associated description.

(17) The second end 122 of the cleaning recess 118 is arranged in the second end position in the longitudinal direction 102 in front of the guide channel 132, so that the cleaning recess 118 in the second end position of the stitch-forming element 100 enables access to the guide channel 132. In this way, the guide channel 132 in the second end position of the stitch-forming element 100 can be acted upon and cleaned, for example, with cleaning air 140. FIG. 5 shows a blowout of the guide channel 132 with the stitch-forming element 100 displaced into the second end position in a view from the outside, and FIG. 6 shows a blowout of the guide channel 132 with a stitch-forming element 100 displaced into the second end position in a view from the inside. FIGS. 5 and 6 also show a stitch-forming element 142 which has been displaced into the first end position. In addition, reference is made in particular to FIG. 1 to FIG. 4 and the associated description.

(18) The word “may” refers in particular to optional features of the invention. Accordingly, there are also further developments and/or exemplary embodiments of the invention which additionally or alternatively have the respective feature or the respective features.

(19) If necessary, isolated features can also be selected from the combinations of features disclosed in the present case and can be used in combination with other features to delimit the subject matter of the claim, while resolving a structural and/or functional relationship that may exist between the features.

(20) While the present invention has been illustrated by a description of various embodiments, and while these embodiments have been described in considerable detail, it is not intended to restrict or in any way limit the scope of the appended claims to such de-tail. The various features shown and described herein may be used alone or in any combination. Additional advantages and modifications will readily appear to those skilled in the art. The invention in its broader aspects is therefore not limited to the specific details, representative apparatus and method, and illustrative example shown and described. Accordingly, departures may be made from such details without departing from the spirit and scope of the general inventive concept.

(21) TABLE-US-00001 Reference numerals 100 stitch-forming element 102 longitudinal axis, longitudinal direction 104 vertical axis, vertical direction 106 first head section 107 second head section 108 first shaft section 110 second shaft section 112 drive section 113 drive edge 114 yarn guide section 115 lower edge, knock-over edge 116 guide section 117 upper edge, thread guide edge 118 second recess, cleaning recess 120 first end 122 second end 124 lower edge 126 upper edge 128 textile machine 130 stitch-forming element carrier 132 guide channel 134 dirt 136 arrow direction 138 arrow direction 140 cleaning air 142 stitch-forming element 144 first recess, stitch-forming recess 146 first end 148 second end

(22) 148 second end