DD154620A1 - DEVICE FOR OPENING POLAR LENGTHS ON MACHINING MACHINES, ESPECIALLY CUTTING MACHINES - Google Patents

Abstract

The invention relates to a device for opening the pole loops on multi-needle machines, in particular needle-punching machines, wherein the formed of filaments, non-woven or the like. Polplatinen and tied to a product base Polschlingen be opened on the machine. The device for opening the pile loops consists essentially of the cutting means whose cutting edge runs over the entire width of the needle-punching machine and at the front of the tips of the Polplatinen on which the pile loops are formed, resilient or rigid. The cutting means is attached to a parallel to the Naehwirkstelle arranged bar, which performs a continuous back and forth movement.

Description

-1- 225345

Title of the invention

Device for opening pile loops on multi-needle machines, in particular stitchbonding machines

Gsgebiet applicatio of the invention

The invention relates to a device for opening pile loops on multi-needle machines, in particular stitchbonding machines, wherein the formed of filaments, non-woven or the like. Polplatinen and tied to or ground in a fabric pile loops are opened on the machine.

Characteristic of the known technical solu conditions

There are already devices on pile thread stitching machines for cutting the retracted into a VVarengrund pole loops known »In such a known cutting device, the knives are arranged in a groove of the extended pole plate or can be pivoted into this, to cut open the Polplatinen Polhenkel. The knives are set into oscillating motion by means of an eccentric or crank drive. The cutting takes place along a circular arc, which has a certain invariable angle (DD-PS 15 334). Furthermore, a cutting device is known, in which the cutting of the pile loops by the interaction of reciprocating between the pile boards flat blades and Polplatinen which are'mit beveled edges, is performed. This cutter causes a scissors-like cutting (DD-PS 34 687).

Also known is a cutting device in which the pole plates are formed as double boards and the flat blades are moved freely in the double board, wherein the cutting

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Direction of the flat blade is preferably carried out in the direction of withdrawal (DD-PS 71 597).

Moreover, the use of rotating cutting knives is known, which are arranged on a common shaft and a respective cutting blade is bounded by two guide means on which the pole loops aufzuschneidenen on, or are guided over the cutting edge (DD-PS 91 875).

The main disadvantage of the known devices mentioned is that the leadership of the cutting blade in the Polplatine or, between the Polplatinen an enlargement of the individual Polplatinen or the distance between the individual Polplatinen conditions, so that this cutting device allows only a rough platinum division. Fine divisions, as they come into question at high pole densities, however, are not achievable with these cutting devices.

Moreover, with increased density of the needles, the exact fitting of the cutting blades becomes increasingly more difficult when replacing them. «

Z ± el _{t of} the invention

The aim of the invention is to eliminate the disadvantages described, the continuous power and the operational capability of a device for opening pile loops, in particular for a high density of pole loops to create and secure without reducing the machine performance.

D a rlegung of the essence of the invention

The technical object of the invention is to perform the steps of Polpolbildung and opening the pile loops so that even in the arrangement arbitrarily dense pile loops, especially at high pile densities, the Polbil- 'tion and opening the pile loops can be done functionally reliable.

The needles used for the integration of the pile loops, preferably slide needles may not touch the pile boards and cutting elements even at high machine fineness and

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The threads or fibers used in each case must be reliably detected by the needles. "The pile loops should be cut in a condition in which they oppose the cut with the least possible resistance. The cut must be made safely so that no pile loops remain unopened,

According to the invention the object is achieved in that the cutting means is attached to open the pole loops on a laterally displaceable bar, which is arranged parallel to the Nähwirkstelle, the cutting edge of the cutting means over the entire width of the multi-needle machine and on the front of the Polplatinen resilient or rigid abutment on which the pile loops are formed and tightened until they reach the area of the cutting edge and are opened »The position of the cutting edge on the pole plate is adjustable»

With the device according to the invention it is achieved that the Polschlatinen formed by Polplatinen be performed up to the Schneidstelie in a streamlined state, without additional guide means are required. At the same time is achieved by the streamlined guidance of the pile loops to the cutting point that the individual pile loops are opened exactly in the middle, which ensures a uniform surface of the finished pile fabric. Furthermore, it is ensured by the arrangement of the cutting means on the Polplatinen that guaranteed by the constant displacement movement of the cutting edge directly on the Polplatine each pile loop located on it is guaranteed »

The device according to the invention also makes it possible to open pile loops independent of the machine width and the fineness, ie the density of pile loops on multi-needle machines, because the arrangement of the cutting means between the pile boards is avoided. Moreover, the use of the device for all pile heights and all Types of pole loop material, such as threads, tapes, fibers, etc., can be used,

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The device according to the invention will be explained below in a stitchbonding machine with reference to an exemplary embodiment. "

The accompanying drawings show in

Fig. 1: the arrangement of the cutting means at the Nähwirkstelle in a schematic representation

2 shows a view to FIG. 1 in the direction A

Fig. 3: the drive of the cutting means in a schematic Daretellung

Fig _e 4: the schematic representation of the cutting means in the embodiment as a rotating cutting band

5, the arrangement of the rotating cutting band at the Nähwirkstelle in a schematic representation

According to FIG. 1, the base web 1 is pierced by the slider needle 2 with the closing wire 3, while it is fed to the Nähwirkwerkzeugen between the tee board 4 and the pole plate 5. The needle hole 6 leads to the previous stitch forming cycle of another needle needle detected pile yarn 7 and sets him after a lateral displacement movement in the hook of the needle 2, the reverse thread of the needle 2, the pile thread 7 is formed on the pole plate 5 to pile loops 8 and on the The cutting means for opening the pile loops 8 consists of a transverse to Nähwirkstelle cutting edge 10, which is formed in the embodiment of a series of juxtaposed cutting blades. These, the cutting edge 10 forming cutting blades are bolted to a spring plate 11, which is mounted on a bar 12. The bar 12 is fixedly connected to a lever 13 which is mounted on the shaft, via the shaft 14, the bar 12 is set in a reciprocating motion.

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According to FIG. 3, the transmission shaft 19 of a friction-ring transmission 18 is driven by a separate electric motor 15 via a V-belt drive 16, 17. From the transmission shaft 19, the lever 22 is moved via the cam disc 20 and the cam 21, which transmits a lateral displacement movement to the shaft 14, to which the bar 12 is attached »on the clamping lever 24, which is also mounted on the shaft 14 , Springs 23 are arranged, which are provided for the withdrawal of the shaft 14 and the bar 12 and cause an offset movement in the other direction. Above the locking lever 25, the locking pin 26 and the locking plate 27, the lever 22 is fixed in its position.

In a further exemplary embodiment, the drive of the shaft 14 can also take place directly from the main drive of the multi-needle machine. The transmission also takes place via a V-belt drive from the main shaft of the machine (not shown) to the transmission shaft 19 of the transmission 18 and the cam gear 20, 21, 22 to the shaft 14

As illustrated in FIG. 1, the pile loops 8 anchored in the base web 1 are taut over the pile boards 5. The pile loops 8 are pulled off with the finished pile fabric 33 through the fabric removal tree 34 in the direction of the arrow Polschlingen 8 transported in the region of the cutting edge 10. As shown in Fig. 2, the cutting edge 10 abuts the front of the Polplatinen 5 and performs a constant reciprocating motion. As a result, the directly past the cutting edge 10 passing pole loops 8 are opened.

In the embodiment of FIG. 4, the cutting means is formed as an endless cutting belt 29 which is enclosed in an elastic guide means, such as rubber band 30, the ground cutting edge 10 also abuts the front of the Polplatinen 5 and is constantly past it (Fig. 5). For this purpose, the cutting belt 29 is guided over guide rollers 31 and ball bearings 32. The drive is from the guide roller 31a. By means of Andrückplatinen 28, the cutting belt 29 is pressed firmly against the front of the Polplatinen 5, so that the pulled into the region of the cutting edge 10 Polschlingen 8 are constantly qeöffnet.

Claims (7)

Erf indu η Q1S s 1, Apparatus for opening pile loops on multi-needle machines, in particular stitchbonding machines, wherein the formed of pile threads, fleece or the like «are formed by Polplatinen and tied to or in a goods ground Polschlingen on the machine, characterized in that the cutting means for opening the pile loops a laterally displaceable bar is mounted, which is arranged parallel to the Nähwirkstelle, wherein the cutting edge of the cutting means extends over the entire width of the multi-needle machine and on the front of the Polplatinen resiliently or rigidly adjustable in height rests on which the pile loops are formed and tightened until they reach the area of the cutting edge and are opened, 2, device according to, point ι 1, characterized in that the cutting edge of the cutting means is formed of individual side by side preferably arranged in a plane cutting elements, such as blades, 3 »Device according to 1 and 2, characterized in that the cutting edge is arranged in different planes, whereby at the same time a pattern-like pole opening can take place. 4, device according to item 1, characterized in that the cutting means consists of a guided over rollers circulating belt, preferably metal strip, with cutting edge. 5 "device according to point ι 1 and 2, characterized in that the Barr carrying the Schneidrnittel is driven by a cam gear laterally displaceable by a separate motor« 6, device according to point "> ^ and 2, characterized in that the drive of the bar carrying the cutting means from the main drove the multi-needle machine is done. 7 "device according to point ^ ^unc * 4, characterized ^ characterized in that the circumferential band with cutting edge, preferably with a