DE1485505C3

DE1485505C3 - Tufting machine for the manufacture of tufted products

Info

Publication number: DE1485505C3
Application number: DE1485505A
Authority: DE
Inventors: Bernard Hobart Rossville Ga. Wittler (V.St.A.)
Original assignee: Singer Co
Current assignee: Singer Co
Priority date: 1963-03-21
Filing date: 1964-03-17
Publication date: 1974-01-31
Also published as: DE1485505A1; DE1485505B2; US3216382A; GB988925A

Description

3 43 4

triebswell'e 10 der Tuftingmaschine erteilt, wobei das kante 21 des Greifers 13 zusammenarbeitet, um die Exzenter 9 von dem Bügelende eines Lenkers 11 um- Schlaufen durchzutrennen. Das Messer 30 ist mit faßt wird, der an seinem unteren Ende mit der dem messertragenden Element 28 durch einen AnStange 6 schwenkbar verbunden ist. Ein Faden oder satz 32 an der Fläche des Messers 30 verbunden, der ein Garn Y wird der Nadel 8 durch Garnzuführrollen 5 in einer passenden Öffnung 33 in dem messertragen-Triebswell'e 10 granted to the tufting machine, the edge 21 of the gripper 13 working together to sever loops around the eccentric 9 from the bow end of a handlebar 11. The knife 30 is grasped, which is pivotally connected at its lower end to the knife-carrying element 28 by a rod 6. A thread or set 32 connected to the surface of the knife 30, which is a thread Y is carried to the needle 8 by thread feed rollers 5 in a suitable opening 33 in the knife-

12 zugeführt. den Element 28 Aufnahme findet. Das Messer 30 Mit der Nadel 8 arbeitet ein Greifer 13 zusammen, wird gegen die Fläche des Greifers 13 durch das12 supplied. the element 28 takes up. The knife 30 A gripper 13 works together with the needle 8 and is pressed against the surface of the gripper 13 by the

der einen Haken 14 aufweist. Der Haken 14 greift in Messertragelement 28 gedrückt, das elastisch ist undwhich has a hook 14. The hook 14 is pressed into knife support element 28, which is elastic and

die durch die Nadel 8 erzeugte Schlaufe. Der Greifer vorzugsweise aus Federstahl besteht und in einemthe loop created by the needle 8. The gripper is preferably made of spring steel and in one

13 enthält einen Tragteil 15, der durch eine Stell- io kleinen Winkel zu dem Greifer 13 angeordnet ist, schraube 16 in einem Schlitz 17 in einer Greifer- wodurch sich das Messertragelement gegen den Greistange 18 befestigt ist, die durch eine Greiferwelle 19 fer 13 lehnt, wobei das Ende des Messertragelemengetragen wird. Die Greiferwelle 19 ist in Lagerarmen tes 28 von dem Greifer 13 weggebogen ist, so daß 20 in dem Sockel 2 gelagert und kann in zeitlicher sich dort ein im wesentlichen bogenförmiger Teil des Beziehung zu der Auf- und Abbewegung der Nadel 8 15 Elementes 28 gegenüber dem Messer befindet und durch (nicht dargestellte) Antriebsverbindungen von daher zwischen dem Messer 30 und dem Messertragder Hauptantriebswelle 10 hin- und hergeschwenkt element 28 eine Linienberührung zustande kommt, werden. wie bei 34 in F i g. 3 angedeutet. Die Linie 34 ver-13 contains a support part 15 which is arranged at a small angle to the gripper 13, screw 16 in a slot 17 in a gripper - whereby the knife support element is against the gripper rod 18, which leans by a gripper shaft 19 fer 13, the end of the knife support member being carried will. The gripper shaft 19 is bent away from the gripper 13 in bearing arms tes 28, so that 20 stored in the base 2 and can be a substantially arcuate part of the time there Relationship to the up and down movement of the needle 8 15 element 28 is located relative to the knife and by drive connections (not shown) between the knife 30 and the knife carrier Main drive shaft 10 pivoted back and forth element 28 a line contact comes about, will. as at 34 in FIG. 3 indicated. Line 34

Der Greifer 13 ist in der Tuftingmaschine so an- läuft im wesentlichen durch die Mitte des AnsatzesThe gripper 13 in the tufting machine runs essentially through the center of the attachment

geordnet, daß der Haken 14 sich in der Richtung 20 32, der in dem Bereich gegenüber der Fläche desarranged that the hook 14 extends in the direction 20 32, which in the area opposite the surface of the

entgegen der Vorschubrichtung des Grundgewebes Greifers 13 angeordnet ist. Auf diese Weise ist dasis arranged opposite to the feed direction of the base fabric gripper 13. This is the way it is

erstreckt, so daß die an ihm befindlichen Schleifen Messer 30 mit dem Messertragelement 28 verbundenextends so that the grinding knife 30 located on it is connected to the knife support element 28

gegen das geschlossene Ende des Hakens 14 bewegt und wird bei Verschwenken der Messerwelle 22 mitmoves towards the closed end of the hook 14 and is with the pivoting of the knife shaft 22 with

werden, an welchem sie gegen eine Schneidkante 21 ihm auf- und abbewegt, um die Schlaufen zuat which it moves up and down against a cutting edge 21 to close the loops

an der Unterseite des Hakens 14 durch einen Mes- 25 durchschneiden. Gleichzeitig ist das Messer 30,Cut through the underside of the hook 14 with a knife 25. At the same time the knife is 30,

sermechanismus durchgeschnitten werden. wie eben erläutert, relativ zu dem Messertragele-be cut through. as just explained, relative to the knife support element

Der Messermechanismus weist eine Messerwelle ment 28 um eine Achse schwenkbar, die parallel zur 22 auf, die in dem Sockel 2 durch Lagerarme 23 ge- Greiferebene und senkrecht zur Längsachse des Meslagert ist und durch (nicht dargestellte) Verbindun- sers 30 verläuft, so daß es unter dem Druck des Mesgen von der Hauptantriebswelle 10 verschwenkt wird. 30 sertragelementes 28 flach, ohne zu verkanten gegen Die Messerwelle 22 ist mit einem Loch 24 versehen, die Fläche des Greifers 13 anliegt. Die Schneidkandas einen Zapfen 25 an einem Messerhalter 26 auf- ten 31 und 21 werden dadurch in zusammenarbeitennimmt und in welchem er zwecks Einstellung in der Lage gehalten, und es sind keine Druckstellen Längsrichtung durch eine Stellschraube 27 befestigt vorhanden, die bei einer Relativbewegung des Greiist. Der Messerhalter 26 hat im Querschnitt im we- 35 fers 13 und des Messers 30 die Neigung haben würsentlichen C-Form und nimmt ein Messertragelement den, es zu hoch zu erwärmen. Irgendwelche Wärme, 28 auf, das in ihm zwecks Einstellung in Längsrich- die zwischen dem Greifer und dem Messer erzeugt tung durch eine Stellschraube 29 befestigt ist. Zwi- wird, wird über einen größeren Bereich verteilt und sehen dem Ende des messertragenden Elementes 28 wird schneller abgegeben, wodurch die Temperatur und dem Greifer 13 befindet sich ein Messer 30, das 40 der Teile auf einer annehmbaren Höhe gehalten eine Schneidkante 31 aufweist, die mit der Schneid- wird.The knife mechanism has a knife shaft element 28 pivotable about an axis that is parallel to the 22, the gripper plane in the base 2 by bearing arms 23 and perpendicular to the longitudinal axis of the measuring bearing and runs through connector 30 (not shown) so that it is under the pressure of Mesgen is pivoted by the main drive shaft 10. 30 support element 28 flat, without tilting against The knife shaft 22 is provided with a hole 24, the surface of the gripper 13 rests. The cutting kandas a pin 25 on a knife holder 26 31 and 21 are thereby taken into cooperation and in which he is held for adjustment and there are no bruises Fastened in the longitudinal direction by an adjusting screw 27, which is present in the event of a relative movement of the Greiist. The cross-section of the knife holder 26 is weaker 13 and the knife 30 has the inclination C shape and takes a knife support element to heat it up too high. Any warmth 28, which is generated in it for the purpose of adjustment in the longitudinal direction between the gripper and the knife device is fixed by an adjusting screw 29. In between, is distributed over a larger area and see the end of the knife-bearing element 28 is released more quickly, reducing the temperature and the gripper 13 is a knife 30 which holds 40 of the parts at an acceptable level has a cutting edge 31, which is with the cutting.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

1 2 claims - It follows that during the rapid back and forth swinging movements of the gripper rela-

1. Tufting machine for the production of tufting to the knife considerable heat between the bet products with one of the contact surfaces of the knife and the gripper piercing a base fabric thread-guiding needle, with 5 is indicative of premature destruction of the Meseinem Claw whose hooks into the caused by the nasers.

del generated loop engages, with a large separation of those on the gripper caused by the friction between knives that are elastically applied to it for the diameter and the gripper because of the ways in which this known gripper cooperates, laterally machine The amount of heat is the working speed of the Ma loop, which is limited by a knife support element. Is z. B. tried, which is vorbekannhen, which holds the knife with the gripper in th machines at speeds in the vicinity of the system, and with a connection between about 3000 stitches per minute, to let the knife and the driven knife output work heat generated so great that the knife element, characterized in that 15 is destroyed within a few minutes,
The invention is based on the object of providing a surface of the gripper (13) relative to the knife support knife mechanism in a tufting machine so that the element (28) can be pivoted about an axis, so that even at high Working speed parallel to the gripper plane and perpendicular to the gripper level, a long service life of the knife runs along the longitudinal axis of the knife (30). - 20 is guaranteed.

2. Tufting machine according to claim 1, characterized according to the invention, this object is achieved characterized in that the knife support element (28) is released that the knife for flat application to the is elastic. Area of the gripper relative to the knife support element

3. tufting machine according to claim 2, wherein is pivotable about an axis which is parallel to the knife support element is arranged obliquely relative to the gripper 25 gripper plane and perpendicular to the longitudinal axis of the mesa is, characterized in that the sers runs. This can make the knife look flat Place the end of the knife support element (28) from the gripper against the side surface of the gripper, whereby fer (13) is bent away and that it is avoided with the pressure points, which tend to Knife (30) essentially along a line in would localize the generation of heat Contact engagement is available. 30 and thereby the destruction of the knife

4. Tufting machine after one of the accelerators. At the same time the knife is against the Proverbs 1 to 3, characterized in that the side of the gripper is held with sufficient force to Knife (30) with a shoulder (32) and the measuring a cooperation between the cutting edges To ensure the support element (28) with a corresponding one for cutting through the loops. Opening (33) for receiving the approach (32) 35 To avoid being seen under certain bevers is. operating conditions result in pressure points is at a

preferred embodiment, the knife support element

designed to be elastic. In another preferred

Embodiment of the invention is the end of the measurement

The invention relates to a Tuftingma- 40 s carry element bent away from the gripper and

machine for the production of tufted products with stands with the knife essentially along a line

a thread guide piercing a base fabric never engages in contact. With another one

renden needle, with a gripper whose hook in an embodiment of the invention is the knife with

the loop created by the needle engages with a shoulder and the knife support element with a

a cooperating with the gripper, 45 corresponding opening for receiving the approach

laterally elastic to him applying knife to provide.

Severing the located on the gripper The invention will be described below with reference to the

Loop that explains the drawing provided with a knife support element, for example,

is which the knife with the gripper in attachment Fig. 1 is a cross-sectional view of a tufting

holds, and with a connection between the measuring machine on which the invention is embodied;

ser and the driven knife support element. F i g. 2 is a partial sectional view of the gripper and FIG

In a known tufting machine of this type the knife mechanism of the tufting machine

(U.S. Pat. No. 2,242,103) are touch figs. 1;

areas in the vicinity of the cut edges except for one figure. 3 is a partial sectional view taken along line 2-2

slight twisting of the cutting edge of the knife 55 of FIG. 2;

flat. In addition, only between the knife and F i g. Figure 4 is an exploded perspective view of the foremost part of the gripper, the so-called partial view of the gripper and knife elements.
Beak, and not between the knife and the In the drawings, a tufting machine is provided with the entire gripper surface and contact surfaces, which has a housing 1 including a base. In addition, since the knife is not freely movable relative to the gripper 60 angle 2 and a head 3 hanging above it, it is proven when the gripper is cut. A base fabric is passed across the base 2 known knife mechanism through the rubbing through an unwinding roller 4 and a receiving surface between the knife and the front roller 5.

Most part of the gripper a considerable friction In the head 3 is an up and down

generates heat. 65 rod 6 arranged, which at its lower end a

In another embodiment (USA patent specification carries a needle bar 7 to which a needle 8 is attached.

143 679) the knife lies in a considerable one up and down movement in the longitudinal axis

Angle to the side wall of the gripper body. the rod 6 by an eccentric 9 on a main