KR100844196B1 - Knitting element, in particular, knitting needle of knitting machine - Google Patents

Abstract

The present invention comprises a needle shaft having a fixed cross-sectional area (7) into which a knitted member can be inserted into a receiving groove of a knitting machine-bar, wherein the fixed cross-sectional area (7) has a front portion, a rear portion, and two side portions. It relates to a knitted member as a knitted needle of a knitting machine comprising a. Even after the knitted member is replaced several times, in order to arrange the knitted member 5 at a desired position of the bar, the fixed cross-sectional area 7 has a width in the front or rear part area at least a part of its length. It has a larger width than in its opposite area.

Description

Knitting element, in particular, knitting needle of knitting machine

1 is a cross-sectional view of the bar (bar) is inserted into the knitting needle,

2 shows a first embodiment of a knitted needle,

3 shows a second embodiment of a knitted needle,

4 is a schematic view for explaining the cross-section of the knit needle and the bar groove (bar groove),

5 shows a modification of the bar into which the knitted needle is inserted,

Figure 6 shows a knitted needle using the bar of Figure 5,

7 is a schematic view for explaining the cross section of the knit needle and groove,

8 is a front view, side view, and top view showing the bar of FIG. 1,

9 is a schematic view for explaining the interaction of the needle and the bar,

10 shows different cross-sectional shapes of knitted needles,

FIG. 11 shows a groove shape adapted to the knitting needle of FIG. 10.

The present invention includes a needle shaft having a fixed cross-sectional area for inserting a knitted member into a receiving groove of a knitting machine bar, wherein the fixed cross-sectional area includes a front portion, a rear portion, and two side portions. A knitted member as a needle. In addition, the present invention includes a plurality of grooves arranged in parallel along the longitudinal length of the bar, and a knitted member disposed in at least some of the grooves, each groove is one groove base, two grooves The knitting member comprises a side portion, and one groove opening, wherein the knitting member relates to a knitting machine-bar of a knitting machine that projects from the groove by a predetermined protrusion.

A knitted member in the form of a knitted needle of this kind is disclosed, for example, in the German patent specification DE 44 14 703 C2.

The invention will now be described with reference to knitted needles, in particular slider needles. However, the present invention is also applicable to another knitting member, which is to be fixed to a relatively knitting machine-bar. In this case, the knitting needle may be formed of a slider needle or a sharp needle, or may be formed of another needle used during or during the machine configuration.

Knitting needles are knitting tools used in machine construction in textile machines, in particular knitting machines. At this time, the needle is inserted into the receiving groove of the bar. Here, in order to prevent the knitting needle from colliding with another knitting member, which is arranged on another bar and in which a relative motion with respect to the knitting needle must be realized in order to manufacture the knitting, a relatively high accuracy at the division interval is important. For the same reason, the knit needle should be as parallel as possible to the bar. Aligning in a straight line is equally important.

Of course, since the knitted needles are reliably worn in operation, the knitted needles must be replaced from time to time. In most cases, the bar length should be replaced with a knitting needle between 500 and 2000 meters per meter. Assemblers can't spend too much time using individual needles. In another aspect, the assembler wants to avoid having to spend a lot of time aligning the needles after inserting all the needles.

In general, the groove is formed into a rectangular groove. At this time, there is a small difference in the needle deviation, ie the needle deviation between the lateral spacing of the two side portions and the corresponding wall of the groove, to allow a predetermined movement of the needle in the groove. Since the knit needle is manufactured in large quantities, the measurement deviation occurs in the knit needle. The knit needle is practically unavoidable. The knit needles occur, in particular, in different batches made of different sheet metals. The thickness of the sheet metal varies slightly.

In order to arrange the knitted needle in the groove without movement, the above-mentioned German patent specification DE 44 14 703 C2 proposes a technique in which a needle shaft is provided in a fixed cross-sectional area having a curvature too large compared with the receiving groove. When this type of knitted needle is pushed into the groove, the curvature pushes or secures something like material to the groove side, and the needle should rest in the groove without movement. However, this kind of embodiment eventually does not solve the problem. In mass production of the knit needle, the curvature always rests in this position. When replacing this knitting needle, there is a certain possibility that the curvature of the new needle is placed at the position where the curvature of the previous needle already pushes the material into the groove side. No more movement-free position is guaranteed. The excessively large size of the needle also creates the risk of a bridge placed in the bar between the grooves being pushed laterally by this excess dimension.

An object of the present invention is to enable the knitted member to be placed in a desired position even after several replacements.

This object is solved by the fixed cross-sectional area having a width at least a portion of which is larger than the area in which the width in the area of the front part or the rear part thereof is opposite.

According to this embodiment, the knitted member can be so-called itself centered when the bar is inserted into the groove. It is only assumed that the cross section of the groove is adapted to the cross section of the fixed cross-sectional area and that the side portions of the fixed cross-sectional area travel at least partially in parallel with each other in the partial area. Thus, the knitted member is pressed against another groove side portion when inserted into the groove of the bar while contacting the groove side portion during another insertion. When the knitted needle is inserted into the groove, that is, material removal by friction and material pressure by deformation of the groove side portion are not performed. Accordingly, the replacement of the knitted member can be performed again without any change in the geometry of the bar.

Preferably, the transition from a relatively large width to a relatively small width is such that the depth of one side portion is at least partially extended and inclined from the front side to the rear side with respect to the other side portion from the other side portion. It is performed by a plane that is built or bent. The depth is in the direction from the front part to the back part. When the knitted member is disposed in the groove side surface by a plane inclined or bent in a correspondingly inclined plane, the knitted member can be transferred to the side by a plane inclined or bent in the side portion.

Here, preferably, the plane extends to the rear face. The rear portion of the knitted member is a side surface most deeply guided into the groove. In order to arrange the knitted member on the bar, as much of the fixed cross-sectional area as possible can be used.

Here, preferably, the inclined plane comprises at least two partial planes having different inclination angles. For example, this kind of embodiment is selected in certain applications where steep slopes of the side portions are selected in areas adjacent to the back portion.

Preferably, only one of the two side portions comprises an inclined or curved plane. The another side portion runs perpendicular to the width extension of the bar. This side portion is used to arrange the knitted member on the bar. As such, when the knitted member is divided, high accuracy can be maintained at a low cost.

 As an alternative thereto, the two side parts may comprise planes which are inclined or bent to one another. In particular, when the needle is formed symmetrically with respect to the first center plane, this is another possibility that a high accuracy arrangement can be realized with respect to the division of the knitted member. The division relates to the central plane of the knitted member.

Preferably, the two side portions comprise planar cross sections which run parallel to each other, in the region of maximum width. This causes reliable guidance when the knitted member is inserted into the bar, so that the installation is easy.

Preferably, the side portions are arranged at right angles to the front portion. In this case, the front portion of the knitted member runs parallel to the longitudinal extension of the bar. This facilitates the manufacture of the knitted member, since the needle having a right angle can be drilled into sheet metal.

This object is solved in a knitting machine-bar by including a groove cross section in which the aforementioned knitted member is formed and the groove at least part of its height is adapted to the cross section of the knitted member.

Using this kind of bar, when using the corresponding knitted member, the knitted member can be installed on the bar without movement and with high accuracy, where only a small cost is required when installing the knitted member. The knitted member should only be inserted into and fixed to the groove. Thus, the knitted member is automatically aligned with the groove.

Preferably, the groove side portion extends perpendicular to the front portion of the bar. In this case, the groove side portion extending vertically to the front portion of the bar can be used as a positioning aid, so that the division of the knitted member at low cost can correspond to this requirement.

Preferably, a protective interval is provided between the rear portion of the knitted member and the groove base. This protection interval is small. The protective spacing should be sufficient to allow the knitted member to be pushed into the groove wide enough to ensure a stationary position. However, if an excessively large force acts on the knitted member and presses the knitted member again into the groove, the protective gap must be overcome relatively quickly, so that the knitted member is adjacent to the groove base and the knitted member It is no longer possible to move back to the groove. Accordingly, it is possible to prevent an incredibly high side force on the groove bridge between the grooves.

Preferably, the knitted member is fixed to the groove by at least one cover. The cover generates a holding force. The cover preferably includes an elastic layer on the side facing the knitted member, so that the knitted member offsets a small difference in the height of the knitted member protruding from the groove.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a perspective view showing a cross section of a bar 1 of a knitting machine (not shown in detail). This kind of bar is entirely several meters long.

The bar 1 comprises a plurality of grooves 3 arranged in parallel in the height cross-section 2. The grooves 3 are arranged parallel to each other in the longitudinal extension of the bar 1. The grooves 3 are separated from one another by a groove bridge 4.

Knitted member 5 in the form of a knitted needle is disposed in the groove (3). The knitted member 5 is shown in only two grooves. In general, however, all the grooves 3 have a knitted member 5.

The knitted member 5 of FIG. 1 is shown in two different viewing directions in FIG. 2. Each knitted member 5 comprises a needle shaft 6 having a fixed cross-sectional area 7. The knitted member 5 is fixed to the groove 3 of the bar 1 by the fixed cross-sectional area (7).

In a general manner, a needle head 8 formed by a hook is connected to the end of the needle shaft 6. Here, although not shown in detail, if the hook (9) is to pass through the thread by a stitch (stitch), a slider or a closing member for closing the hook (9) may be provided. At the opposite end, the knitting member 5 comprises a needle foot 10 having a projection 11. The protruding portion 11 is caught under the height end surface portion 2 for additionally fixing the knitted member 5 to the bar 1.

For the purpose of the following description, in the knitted member 5, more precisely, in the fixed cross-sectional area 7, the front part 12, the rear part 13, and the two side parts 14, 15 are defined. . The front portion 12 is a side that protrudes from the bar 1 in the installed knitted member 5. The rear portion 13 is the side that is deeply inserted into the bar (1).

As can be seen from FIG. 4, the two side portions 14, 15 of the fixed cross-sectional area 7 are not aligned in parallel with each other, but from each other in the direction from the front portion 12 to the rear portion 13. Incline Basically, the cross section of the knitted member 5 is formed in a V-shape in the fixed cross-sectional area 7.

In a corresponding manner, each groove 3 comprises a groove base 16, a groove opening 17, and two groove side portions 18, 19. Here, the cross section of the groove 3 is adapted to the cross section of the fixed cross-sectional area 7 of the knitted member 5. The inclination of the side portions 14, 15, ie, coincides with the inclination of the groove side portions 18, 19.

This results in the knitting member 5 centering itself when the knitting member 5 is inserted into the groove 3. One side of one of the two side portions 14, 15 when inserted into the groove 3 is included in one of the two groove side portions 18, 19, and then the knitted member 5 is placed in the groove ( When pushed back into 3), the one side portion is slightly transferred laterally until another side portion of the side portions 15 and 14 is included in the other side portion of the groove side portions 19 and 18. In this case, the knitted member 5 is automatically aligned in the center of the groove 3 and disposed therein without movement. When inserted into the bar 1, the knitted member 5 does not have to be made any deformation or partial deformation of the groove bridge 4.

The knitted member 5 protrudes by the small protrusion 20 of the front portion 21 after being inserted into the bar 1. The individual knitted needle can be fixed to the bar 1 by a cover which will be described in more detail later with reference to FIG. 9, wherein the knitted member 5 is fixed without moving at great cost.

Replacement of the knitted member 5 is relatively simple. By simply pulling onto the knitted member 5, the knitted member 5 can be moved to the front portion 21 of the bar 1 and then separated from the groove 3. The new knitted member 5 is inserted into the groove 3 in the opposite direction without the need for applying a relatively large force when inserting it.

The knitting needle shown in FIG. 2 is suitable for a Raschel knitting machine. Alternatively, the knitting needles shown in Fig. 3, in which the same members have the same reference numerals, are suitable for knitting machines or knitting machines.

In order to form the cross section of the said groove 3 and the cross section of the said fixed cross-sectional area 7, it will extract and demonstrate below.

5 shows the bar 1 in which the groove 3 is no longer symmetrically arranged in the virtual central plane. Rather, the groove side portion 18 is arranged perpendicular to the front portion 21. Only the other groove side portion 19 has an angle other than 90 ° with respect to the front portion 21 of the bar 1.

The knitting member 5 belonging to the groove is shown in FIG. 6. The left side portion 14 (relative to FIG. 6) is correspondingly perpendicular to the front portion 12 of the fixed cross-sectional area 7. Alternatively, the another side portion 15 forms an acute angle with respect to the front portion 12.

Here, this fixing principle is similar to the embodiment shown in relation to FIGS. 1 to 4. Of course, disposing the knitted member 5 in the groove 3 is not performed at the center of the groove (relative to the longitudinal extension of the bar 1), as mentioned above, the bar 1 Is performed at the left groove side portion 18 which forms a right angle with respect to the front portion 21.

This positional arrangement is such that the side surface portion 14 has the groove side portion due to the wedge effect between the side surface portion 15 and the groove side surface portion 19 when the knitted member 5 is inserted into the groove 3. The small lateral movement of the knitted member 5 acts for a long time until it is provided at (18).

In addition, the present embodiment has the advantage that the side surface of the knitted member 5 that accommodates the side surface portion 14 forming a right angle with respect to the front surface portion 12, as can be seen from Figure 6b, is formed flat Has

8A shows a front view of the bar 1 of FIG. 1. From this, it can be seen that the needle divider 22 can be fixed by the central plane of the groove 3. When the embodiment of FIGS. 5 and 6 is used, the needle dividing portion 22 acts by a distance perpendicular to the groove side portion 18 proceeding to the front portion 21.

FIG. 8B shows a side view, and FIG. 8C is a top view of the bar 1 in which the knitted member 5 of FIG. 5 is installed.

9 shows a schematic view of the knitted member 5 installed in the groove 3 in the bar 1. The knitted member 5 includes a cross section. In the cross section, the side portion 14 extends perpendicular to the front portion 12 and extends to the entire depth of the fixed cross-sectional area. The further side portion 15 likewise comprises a cross section. The cross section extends at right angles to the front portion 12 of the fixed cross-sectional area. Only the plane 23 which extends as part of the depth of the fixed cross-sectional area is inclined with respect to the front portion 12. This partial region is provided in the plane 24 of the groove side portion 19 correspondingly inclined.

In the installed knitted member 5, a protective interval s is formed between the rear portion 13 and the groove base 16. In the present embodiment, the protective interval s is smaller than the protrusion 20 between the cover 25 and the front portion 21 of the bar 1.

The cover 25 includes an elastic layer 26 on the side facing the bar 1, so that the knitted member 5 has a tolerance when the cover 25 is fixed to the bar 1. Due to the difference in thickness based on), even if protruding from the bar 1 differently, all knitted members 5 can be fixed in the same manner. However, this difference is not too large.

10 shows different shapes of the cross section of the fixed cross-sectional area of the knitted member. 11 shows a cross section suitable for this. In general, the bar 1 is always used with the same shape of the cross section of the groove 3.

10 and 11 show cross sectional forms based on the embodiment of FIGS. 1 to 4. 10 i and 11 i show cross-sectional views based on the embodiment of FIGS. 5-7 and 9.

10 a and 11 a, an embodiment corresponding to g of FIG. 10 and g of FIG. 11 is shown. Of course, here, the rear portion 13 and the groove base 16 is formed flat.

10B and 11B, the side portions 14, 15 and the groove side portions 18, 19 comprise cross-sectional portions 27, 28. The cross-sections 27 and 18 have a steep inclination relative to the central planes 29 and 30 of the knitted member 5 and the groove 3.

10C and 11C, the side portion 14 or the groove side portion 18 is aligned parallel to the central plane 29 or 30. Only another side portion 15 or groove side portion 19 is inclined. Here, the centering is performed on the groove side portion 18 rather than on the central planes 29 and 30, unlike the embodiment of a and b of FIG. 10.

10 d and 11 d show an embodiment corresponding to c of FIG. 10 and c of FIG. 11. Here, the rear portion 13 or the groove base 16 is formed flat.

10E and 11E show an embodiment in which the side parts 14 and 15 to the groove side parts 18 and 19 are transferred to the rear part 13 or the groove base 16 by curvature. . Here too, centering is automatically performed by inserting the knitted member 5 into the groove 3.

10 f and 11 f show an embodiment in which b of FIG. 10, b of FIG. 11, c of FIG. 10, and c of FIG. 11 are mixed. Here too, the one side portion 14 faces parallel to the central plane 29, while the another side portion 15 and of course the further groove side portion 19 have different inclinations.

10 g and 11 g have already been mentioned.

10 h and 11 h show an embodiment in which the side part is bent inward in the partial region 31. In a similar manner, the groove side portion is bent outwardly in the direction from the partial region 32 to the central plane 30. According to this, the centering is performed when the knitted member 5 is inserted into the groove 3.

10 i and 11 i have been mentioned with reference to FIGS. 5 to 7.

10 j and 11 j show a mirror-symmetric embodiment of the embodiment of FIG. 10 i and i of FIG. 11.

According to the present invention, the knitted member can be placed in a desired position even after several replacements.

Claims (12)

A needle shaft having a fixed cross-sectional area 7 for inserting a knitted member into a receiving groove of a knitting machine bar, wherein the fixed cross-sectional area 7 includes a front portion, a rear portion, and two side portions. In the knitting member as a knitting needle of the knitting machine, The fixed cross-sectional area (7) is a knitting member as a knitting needle of a knitting machine, characterized in that at least part of its length, the width in the front portion or the rear portion region has a larger width than in the opposing region thereof. The method of claim 1 wherein the transition from a relatively large width to a relatively small width extends to at least a portion of the depth of either side portion 14, 15 and the front portion relative to the other side portion 15, 14. A knitting member as a knitting needle of a knitting machine, characterized in that it is performed by a plane (23) inclined or bent toward the other side portion (14, 15) in the direction from (12) to the rear portion (13). The knitting member as a knitting needle of a knitting machine according to claim 2, wherein said plane (23) extends to said rear portion. 4. Knitting member as knitting needle according to claim 2 or 3, characterized in that the inclined plane (23) comprises at least two partial planes (27) having different inclination angles. 4. Knitting member as a knitting needle according to claim 2 or 3, characterized in that only one of the two side portions (14, 15) comprises an inclined or curved plane. 4. Knitting member as a knitting needle according to claim 2 or 3, characterized in that the two side portions (14, 15) comprise planes that are inclined or curved with each other. 4. Knitting member as knitting needle according to claim 2 or 3, characterized in that the two side portions (14, 15) comprise planar cross-sections running parallel to each other in the region of maximum width. The knitting member as a knitting needle according to any one of claims 1 to 3, wherein one side portion (14) is disposed at a right angle with respect to the front portion (12). A plurality of grooves arranged in parallel along the longitudinal length of the bar, and a knitted member disposed in at least some of the grooves, each groove having one groove base, two groove side portions, and a groove. In the knitting machine-bar (1) of the knitting machine comprising an opening and the knitting member protrudes from the groove by a predetermined protrusion, The knitted member 5 according to any one of claims 1 to 3 is formed, Knitting machine-bar, characterized in that the groove (3) comprises a groove cross section adapted to the cross section of the knitting member at least part of its height. 10. Knitting machine-bar according to claim 9, characterized in that one groove side portion (18) runs perpendicular to the front portion (21) of the bar (1). 10. Knitting machine according to claim 9, characterized in that a protective interval (s) is provided between the rear portion (13) of the knitting member (5) and the groove base (16). 10. Knitting machine-bar according to claim 9, characterized in that the knitting member (5) is fixed to the groove (3) by at least one cover (25).

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