DE1162293B - Double-stroke open-shed jacquard machine - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Boarding school Class: D 03 c

German class: 86 b - 10/01

Number: 1 162 293

File number: V 19030 VII a / 86 b

Filing date: July 22, 1960

Opened on: January 30, 1964

The invention relates to a double-stroke open-shed jacquard machine with two resilient legs Sinkers that are provided with a hook on each leg, which is connected to a lifting knife or an open shed knife can cooperate, of which the open shed knife in each case the ascending Lifting knife evades.

A known such machine works as follows:

After the front lifting knives, all of the blanks in the high compartment are removed from the open compartment knives have lifted off, the needle impression is made. None of them When the sinkers are pushed down, the front lifting knives with their rear sinker hooks become placed on the open specialist knife assigned to this. The attached boards remain with their Warp threads in the upper compartment. This means that the rear lifting knives are unhindered when the subject is changed can reach their highest position, the open shed knives, which remain in the upper shed Carrying the sinkers, shifted horizontally to the front. The sinker legs hanging on them become under the load of the harness threads, braids, jacquard weights and hanging on the sinkers in particular the warp thread tension laterally due to the ascending lifting knives from the open shed knives pushed away and fall with their hooks on the lifting knife. For working the front lift knives The same applies accordingly. This way of working is because of the occurring shocks, vibrations and high stresses and the resulting faulty work and high wear is disadvantageous.

The invention avoids this disadvantage in that a drive device for the open shed knife and guides are provided, which these knives alternately shots during the lifting knife movement Move diagonally up and down so that the boards remaining in the open compartment position get in each case with that hook with the open specialist knife assigned to this, the the downward draft knife is assigned.

It is true that a double-stroke open-shed jacquard machine has also become known, which has the the already mentioned machine does not have the existing disadvantage, since on each sinker leg both one with the assigned open shed knife as well as one that cooperates with the assigned lifting knife Hook is provided. The disadvantage here is that the manufacturing costs for these boards is very large and the boards also have a comparatively large overall height of the machine condition. The invention provides a double-stroke open-shed jacquard machine

Applicant:

VEB Loom Construction Karl-Marx-Stadt,

Karl-Marx-Stadt, Emil-Mehner-Str. 8th

Named as inventor:

Dipl.-Ing. Heinz Hollstein, Karl-Marx-Stadt

Machine without this disadvantage and also without the disadvantage of the known machine mentioned first created.

An embodiment of the invention is described with reference to the drawing. In this show:

1 to 3 a schematic representation of the interaction a plate with the open shed knives in the subject matter of the invention,

F i g. 4 an associated movement diagram, and

5 and 6 are a front and a partial side view of the open shed knife drive and the Open knife guides.

In a known manner, the double-legged sinkers 1 of the double-lift open-ended jacquard machine according to the invention are influenced by a game of cards (not shown) and cross needles (not shown) so that they can be grasped on their hooks by two lifting knives 2 and 3 moving in opposite directions. Those sinkers 1 which are to remain in the open shed position over several shots are held in this position by two open shed knives 4 and 5. The open shear knives 4 and 5 are moved by two cam disks 7 and 8 arranged on the drive shaft 6. Two roller levers 10 and 11 pivoted in the bearing 9 work with their rollers 12 and 13 with the cams 7 and 8, which give them a pivoting movement . This is transmitted by two tie rods 14 and 15 to two angle levers 16 and 17, which are mounted in the pins 18 and 19 of the machine frame. The second arm of the angle levers 16 and 17 is articulated to the open shed knife frames 22 and 23 by tie rods 20 and 21. Both open shed knife frames 22 and 23 are provided with rollers 24 which run in inclined slots 25 in the machine frame walls. As a result, the open shed knife frames 22 and 23 and thus also the open shed knives 4 and 5 carry out an oblique movement. The sequence of movements is determined by the construction of the cam disks 7 and 8

309 807/167

determined and can be seen from the diagram of FIG.

The way it works is as follows:

The rear (in FIG. 1 to 3 on the right) lifting knife 3 has according to FIG. 1 all from the deep to the open position alternating sinkers 1 at the same height as the sinkers 1 that remained in the open shed brought. Now all of the sinkers 1 in this position are lifted by the open shed knife 4. At this moment, the needle print and all of the boards 1 for which the sample card had no hole are pushed away from the open shed knife 4 by the transverse needles (not shown). These pressed-off blanks 1 are then moved by the rear lifting knife, which is now descending again 3 taken into the deep compartment (Fig. 2).

During this downward movement, the rear open shed knife 5 moves under the hooks of the rear Sinker legs of the sinkers remaining in the open compartment 1. After these hooks have been grasped, the front open shed knife 4 moves obliquely downward out of the area of the hook of the front Sinker leg (Fig. 3).

According to FIG. 2 is the blank 1 remaining in the open shed position at the moment of the intersection of the lifting knives 2 and 3 locked by both open compartment knives 4 and 5. In Fig. 3 the front open shed knife is then 4 has been moved out of the area of the plate 1 and the front lifting knife 2, whereby the latter can now ascend unhindered. This process is repeated accordingly, if now afterwards the lifting knife 3 rises. All boards 1 located in the high compartment are raised, and the following needle print determines which sinkers 1 change from the high compartment to the low compartment.

Claims (1)

Claim: Doppelhuboffenfach - jacquard machine with two resilient legs having sinkers, which are provided with a hook on each leg with a lifting knife or a Open shed knives can cooperate, of which the open shed knives in each case the ascending one Lifting knife evades, thereby characterized in that a drive device (6 to 21) for the open shed knives (4, 5) and guides (25) are provided which these knives during the lifting knife movement move alternately up and down shots at an angle, so that the remaining in the open compartment position Sinkers (1) each with that hook with the open shed knife assigned to it (4, 5) succeed in engagement, to which the respective descending lifting knife (2, 3) is assigned. Considered publications:
German utility model No. 1 775 995;
British Patent 736 546. For this purpose, 1 sheet of drawings 309 807/167 1.64 @ Bundesdruckerei Berlin