DE8535667U1 - Needle module for a tufting machine - Google Patents

Description

PATENT LAWYERS ^

"'■ ^: "' · *! ". ^: . '."'. ''. DIPL.-ING. ALEX STENGER

Kaiser-Friedrich-Ring Vp ', \>', {..: '..''..' .. ' DIPL.-ING. WOLFRAM WATZKE

D-4000 DÜSSELDORF 11 DIPL.-ING. HEINZ]. RING

EUROPEAN PATENT ATTORNEYS

Our reference: 26 602 Date: December 18, 1985

Singer Spezialnadelfabrik GmbH, Bahnhofstrasse 41-79,
5102 Würselen

Nadel.mndul for a tufting machine

( Λ The invention relates to a needle module for a tufting machine, which is equipped with a needle carrier, on which a large number of needles are arranged next to one another, at the same distance from one another and parallel to one another and in several rows one behind the other, with a certain number of Needles is cast in a base body, the length of which corresponds to a multiple of the center-to-center spacing of the needles and wherein the needles of the rows lying one behind the other are arranged offset from one another by half a pitch

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Such needle modules for tufting machines are known. she

each containing a predetermined number of needles in a 'set * The main body of each needle module is provided on the front and back respectively with plug-in elements, for example Vorsprünger "or transducer elements, for example recesses, which at the same distance from each other, but half a Pitch 7 are arranged offset from one another, so that with a multi-row arrangement of the needles on the needle carrier of the tufting machine, the prescribed offset of the adjacent rows of needles inevitably occurs.

. arranged needles results.

With this known design of the needle modules it is

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Required, at least two modules of the previous module rows to be removed if a needle of a needle module is damaged and the module as a whole against another module should be replaced. Although reused the needle modules removed to replace the one needle module However, this results in a relatively large amount of work and longer downtimes for

the replacement of a needle module. j

The object of the invention is to avoid these disadvantages of the known needle modules and to j

j create j that can be exchanged quickly and easily, |

if one or more of its needles worn or loading \ are damaged. j!

The solution to this problem by the invention is £ characterized in that at least two rows of needles | are cast in the body of the needle module. f

The inventive design of the needle module with |

two or more rows of needles according to f

for the number required for the respective tufting machine, it is | for replacing a needle module with damaged or

worn needles no longer required, other needle |

remove the module from the needle carrier. It just gets that- |

removed the needle module in which the needles are damaged j

or are worn out. This reduces the output |

exchange of a needle module in a few simple steps; the breastfeeding 1

The downtime of the tufting machine due to a module change § is considerably reduced.

According to a further feature of the invention, the main body of the needle module is parallel to the rows of needles Front and back surfaces and with sloping

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Side surfaces formed, the slope of which is designed according to the offset and the spacing of the needles of adjacent rows is. The sloping side surfaces allow * there is a defined system of neighboring needle modules without hindering the removal of individual needle modules can be removed from the needle carrier at an angle after loosening the fastening screw.

To simplify the positioning of the needle modules on the needle carrier of the tufting machine, the The back surface of the base body has a stop bar for the needle carrier of the tufting machine and the base body provided with at least one hole for a fastening screw.

In the drawing is an embodiment of the invention Needle module, namely show:

Fig. 1 is a perspective view of four side by side on a needle carrier of a tufting machine attached needle modules,

Fig. 2 is a front view of a needle module,

Fig. 3 shows a horizontal section through the needle module according to the section line III - III in Fig.2 and

4 shows a side view of the needle module according to FIGS. 2 and 3.

In Fig.l part of a needle carrier 1 of a tufting machine, otherwise not shown, is shown. On this needle carrier 1, four needle modules 2 are fastened by means of a fastening screw 3 each according to FIG.

As can be seen in particular from FIGS. 2 to 4, includes

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each needle module 2 a GJfUndkörper 4, in which a certain Number of needles 5 is cast * In the exemplary embodiment there are six needles 5 in a row * two Such rows of needles 5 are arranged in the base body 4.

As can be seen in particular from the cross section in FIG. 3, the needles in each row are arranged at the same distance from one another. The needles behind the other rows are offset from one another by half the pitch in the basic body 4 r \ poured. Corresponding to this offset and the spacing of the needles 5 in rows lying one behind the other, the side surfaces 4c of the base body 4 run obliquely to the front surface 4a or back surface 4b, which run parallel to the rows of needles. On the lower edge of the back surface 4b of the base body 4, a stop bar 6 is formed, which according to FIG. engages under the needle carrier 1 and ensures an exact positioning of the needle modules 2 on the needle carrier 1. Finally, FIG. 2 shows that the base body 4 is provided with a bore 7 for one fastening screw 3 in each case.

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£; List of reference numbers

1 needle carrier

\ i needle module

3 fastening screw

4 basic body 4a front surface 4b RuuteenfiaCuS 4c side face

5 needle

J (Λ 6 stop bar

h 7 bore

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Claims (3)

Il ** »· ■■ · * Claims: 1. Needle module for a tufting machine, which is equipped with a needle carrier on which a large number of needles are attached next to one another, at the same distance from one another and parallel to one another and in several rows behind one another is arranged, with a certain number of needles being cast in a base body, the length of which corresponds to a multiple of the center-to-center distance of the needles, and the needles of the one behind the other f \ lying rows are offset by half a pitch, characterized,
that at least two rows of needles (5) are cast in the base body (4) of the needle module (2). 2. Needle module n _u ch claim 1, characterized in that the base body (4) is formed with parallel to the rows of needles extending front and back surface (4a, 4b) and with inclined side surfaces (4c), the slope of which corresponds to the offset and the distance between the needles (5) of adjacent rows is carried out. * ' 3. Needle module according to claim 1 or 2, characterized in that that on the lower edge of the back surface (4b) of the base body (4) a stop bar (6) for the needle carrier (1) of the tufting machine and the base body (4) with at least one hole (7) for a fastening screw (3) is provided. - 6 - ti (1 * 1 IMl till t * Il Mti III ι ι f I t Il II · I IM Ml Mt I I i 11 * 11 *