DE1710829A1 - Device for knitting through textile fabrics - Google Patents

Description

8.IO.I97O Dr.J / A

File number: P 17 IO 829.1-2 ^(ύ
Applicant: Sdruzeni podniku.
My reference: 8605

Device for knitting through textile fabrics

The invention relates to a device for knitting through textile fabrics and other similar items Materials, e.g. synthetic fibers, leather, asbestos, etc.

Machines are probably already known, the textile fabrics work through, in which the actual working through of these structures is based on the following two fundamental ones Types takes place:

The first is the fabric continuously fed to the knitting needles, the needles performing a pendulum motion in a plane that extends does not cover with the plane of the sheet, but usually stands perpendicular to this, so that during the duration of the puncture with simultaneous feeding of the structure on the one hand an extension of the opening what occurs is a biting of the fibers in the fabric and on the other hand it comes

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premature to a much too great load on the needles, which as a result of the pulling of the processed material are subjected to bending.

In the second mode of operation, the textile fabric to be processed is fed in jerks to the knitting needles, meanwhile the needles carry out the same movement as in the case mentioned first, which indeed leads to destruction of the processed material and an increase in the stress on the knitting needles can be prevented, but it is it is not possible to exceed a certain working speed of the machine and thus higher performance to achieve.

Compared to the well-known sewing machines that were mentioned for Using ordinary closed sewing needles piercing complicates the problem of these knitting machines in that one is forced to use needles with the hook open, which regardless of the needle movement, closed in a certain work phase by an independently controlled tip will.

According to the invention, all the disadvantages mentioned of the two modes of operation mentioned are eliminated in that in a device for knitting fabrics made of different materials by means of knitting needles, which operated by a needle bed and a tongue bed, according to the main characteristic of the invention, the needle bed and the tip bed are attached to a two-armed lever, these levers at the front end by tie rods and at the rear end by a crank mechanism

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made vvinkelhebel are done, so that the whole Needle mechanism besides the usual in-plane pendulum movement in the direction of the longitudinal axis of the needles performs an additional parallel movement according to the movement of the material.

Further advantages and characteristics of the invention can be found in the following description and drawings FIG. 1 shows the enlarged detailed view of the knitting needles before the puncture, FIG. 2 the same view, but after the end of the piercing, FIG. The schematic perspective representation of the working gear and FIG. 4 shows the section of the kadel and the Tip bed in elevation.

The knitting needle 1 of this Haschine which is guided in a cavity 5 of the needle 1 is c provided with a tip 2, a hook 3 and a tip 4, (Fig. 1) These needles 1 are in this case in a needle bed 6, the tip 4 however stored in a bed 7. The textile fabric to be processed, for example the fleece 8, is, as is customary in these machines, continuously guided in the direction of the arrow S (FIG. 1) between the known tables 9 and 10, the table 9 is provided with openings 11, while the table 10 has comb-like upwardly open slots 12. The needle beds 6 and the tongue beds 7 perform a pendulum motion in one plane independently of one another in this machine, namely in the plane of the longitudinal axis of the needle 1 in the direction of the arrow Sp. For this purpose, the needle bed 6 is at the front end of a straight two-armed lever 13 stored. This two-armed lever is on the one hand around

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a pin IA of a pull rod 15 rotatably attached, on the other hand around the pin 16 of an angle lever 17, also rotatably mounted, the angle lever 17 rotatably on a. Pin 18 is arranged. The pin is fixed in the machine frame. The angle lever receives a pendulum movement about the pin 18 from a crank 19 on the crankshaft 20. The pendulum movement of the angle lever 17 causes the needle to move in the plane of its longitudinal axis. The same movement of the tongue bed 7 »but out of phase, takes place through the intermediary of a straight two-armed lever 21 which is rotatably mounted on a pin 22 of the tie rod 24 on the one hand and on a pin 23 of the angle lever 25 on the other hand, the angle lever 25 rotatably on a pin 26 is arranged. The pin 26 is also fixedly arranged in the machine frame. The angle lever 25 receives its pendulum movement from the pin 26 of the crank 27 on the crankshaft 20.

So that the needle bed 6 and the tongue bed 7 move parallel to the web movement 8 in the phase of the puncture, i.e. execute a movement essentially perpendicular to the needle axis direction 1 can, the pull rod 15 is rotatably mounted on a pin 28, the pin 28 on an arm is arranged, which in turn is mounted on a shaft 30 is.

Similarly, the pull rod 24 is the tip bed 7 rotatably mounted on a pin 31 of an arm 32. The arm 32 is also on the shaft already mentioned 30 firmly stored. The shaft 30 is in bearings 33 of the machine frame rotatably arranged and receives its pendulum

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movement of a cam 34 mounted on a shaft

35 sits, through the intermediary of an angle lever 36, which in turn is also attached to a machine frame Pin 37 is rotatably mounted. The angle lever

36 is provided with a link 38 at its second arm end, in which a pivot pin 39 adjustable in a known manner is arranged. This pivot is located at the end of a tie rod 40 which is connected by a pivot to an arm 42, the arm 42 also on the shaft 30 is seated. The angle lever 36 is against the cam 34 pressed by a spring 43 which is on the other Side supported against the machine frame.

The mode of operation of the device described is now as follows:

The ready mentioned needle beds 6 and herewith also the needles 1 and the tongue beds 7 and thereby also the Tip 4 perform the usual piercing movement in the direction of the arrow Sg to the Üg. 3 and * as well as the return movement through the mediation of the two two-arm levers 13 and 17 and the crank mechanism 19 and through Mediation of the two two-arm levers 21 and 25 and the crank mechanism 27

In contrast to the usual known designs, however, both beds 6 and 7 and thus also the needles 1 and the tip 4 in the piercing phase carry out a parallel movement with the fed fleece in the direction S ^, which is essentially perpendicular to the direction S ₂ . This movement is achieved by oscillating the shaft 30 about its axis, which occurs through the action of the cam disk 34 via the two-arm lever 36, the link 38, the pin 39 and the pull rod 40.

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As a result of the combined movement S _{1 and S 2} , the needle 1 and the tip 4 or the tip of the needle 1 perform a movement according to the curve 44, which is shown in dashed lines in FIGS.

Before the fleece 8 is pierced through the tip 2 of the needle 1, this needle is in the position shown in FIG. I, in which the tip 4 in the cavity 5 of the needle is inserted. The tip 2 of the needle 1 begins to penetrate the fleece 8 and the needle 1 moves on the one hand in the direction Sp along its axis, on the other hand in the direction S-,, together with the supplied Fleece, in the resultant after curve 44, which the path of the tip 2 of the needle 1 from point 45 after the point 46 represents. The position of the needle 1 with the tip 4 at the moment of the completed puncture is shown in FIG. In this phase it has the tip its relative displacement in the direction of the longitudinal axis of the needle 1, in the position in which it Check mark 3 of needle 1 closes, completed. After completion In this working section, the needle 1 begins to return to its original position, and it continues to do so follows the movement of the fleece in the direction of the arrow S- ^, to its tip 2 from point 46 to point 47 of the Curve 44 reaches that point at which the needle 1 together with the tip 4 leaves the fleece 8. on this path of the tip 2 of the needle 1 according to curve 44 from point 45 via point 46 to point 47 it came to known formation of the knitting eye and its passage through the fleece 8 without the throat opening would have deformed in any way in the fleece 8 due to mismatch in the movement of the needle 1. After this When the tip 2 of the needle 1 emerges from the fleece 8, the tip 2 performs a rapid return movement to its basic

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Position on the track from point 47 to point 45.

Before the tip 2 of the needle 1 has completed its movement from point 47 to point 45, the fleece is meanwhile shifted by the distance A, which together with the stroke length B of the needle 1 in the direction of the arrow S-, the total width G the series results. This stroke length B of the needle 1 and thus also the row width G can be adjusted by changing the Zajipfenla ^ e 30 in the link 58. In the direction of arrow S ₂ , the needle follows a path of length D.

The device described is of course not limited to the use of air needles Tip types, but rather other common types of needles can be used.

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Claims (4)

Patent claims: 1. Device for the Durähwiring of textile fabrics made of different materials by means of knitting needles that are operated by a needle bed and a tongue bed, characterized, that the needle bed (6) and the tongue bed (7) are attached to a two-armed lever (13 or 21), this lever (IJ, 21) at the front end through Tie rods (15,24 ·) and at the rear end by angle levers operated by a crank mechanism (19,27) (17.25) are carried so that the whole needle mechanism except for the usual pendulum motion in the Plane in the direction of the longitudinal axis of the needles an additional parallel movement corresponding to the material— movement. 2. Device according to claim 1,
characterized, that the movement of the needle bed (6) and the tongue bed (7) in the direction of the withdrawal of the to be processed Hateriales by a pendulum motion Shaft (30) takes place, with which the tie rods (15,24) are connected by arms (29,32), this pendulum movement the shaft (30) e.g. via an angle lever (36) and a pull rod (40) is derived from a cam disk (34). 3. Device according to claims 1 and 2, characterized in that that the stroke length of the needle bed (6) and the tongue bed (7) in the direction of the withdrawal of the to be processed Ilateriales by moving a pivot pin (39) 209809/0498 _, ~ ⁹ ~ BAD O *! G! NA "- is adjustable in a link (38) of the angle lever (36) 4. Device according to claims 1 to 3 »
characterized, that the tie rods (15,24), which carry the needle bed (6) or the tongue bed (7), have at least three times the length of the upper arms of the angle levers (17,25), whereby an approximately straight movement Ml · the tip (2) the knitting needle (1) is achieved 209809/0498