DE7005523U - GRAPPLE LOOM. - Google Patents

Description

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Reference:

DR.-ING. DIPL-ING. G. RIEBLING PATENT ADVOCATE

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Fr / Dr.R. / Gü

Please repeat in the answer Your message from My «message from

Lindau (Bodensee) Rennerle 10 P.O. Box:

February 12, 1970

Wilson & Longbottom Ltd.

Nelson Foundry, Barnsley, Country of York / England

Grapple weaver ship

This innovation concerns improvements to gripper weaving boats for looms in which the loom is driven by a fixed yarn package is supplied with weft thread by a yarn dispenser.

According to the innovation is a rapier loom for a loom characterized by an elongated body formed with a recess in one top, one in the recess

Telephone: • -lau (08382) 6917 - »en Fu 25 81897

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Bank account:

Bayer. State bank Lindau (B) No. 1562

Postal checking account: Munich 395 room

attached gripping device for the weft thread, a movable cam, which protrudes from one side of the body to engage a surface of a gun box on the loom and by that attack to be moved when the weaver enters the box during operation, the gripping device being responsive on such movement of the cam can be opened to release the captured weft thread and the recess contains a groove that extends extending longitudinally of the top of the body to allow a weft dispenser on the loom, the gripping device Weft feed when the weaver ship is shot.

The innovation is now referring to the accompanying drawings described in detail.

It shows:

Fig. 1 is a side view of a gripper weaver ship it according to the Invention;

Fig. 2 is a plan view of an end part of the weaver of Fig. 1. Fig. 3 is a longitudinal sectional view of the part of Fig. 2;

Fig. 4 is a fragmentary perspective view of the end portion of Fig.

and 3;

Fig. 5 is a fragmentary cross-sectional view of the part of Fig. 2 and 3;

Fig. 6 is an incomplete top view of the weaver ship of Fig. 1, that enters or leaves a contactor box;

Fig. 7 is a fragmentary view of the section of Fig. 3 showing the Depicts jaws of the gripping device open;

8-15 are schematic views of a loom during various Stages of a weaving process using a gripper designed according to the invention.

In Fig. 1-7, a gripper -Webers chiff 2 has an elongated body 4 with a conventional tip 6 at each end. A recess 8 formed in the top of the body 4 includes a groove 10 which extends longitudinally from one end of the body 4 to the other and a recess 12 which extends downward from the groove 10 and is located in the center of the body 4 is.

Two similar pairs of gripping jaws 14 and 16 are arranged in the recess 8. They face each other and each pair is attached to an opposite end of the recess 12. Every couple

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includes a fixed upper jaw 18 above a movable lower one Jaw 20, where each jaw is separated by t;: Ui.e ν; relatively narrow, elongated plate is formed. The jaw 18 is attached at one end to the body 4 and inserted into a base of the groove 10 and curves upward to a rounded and pointed tip on the other side 22 which is above the base the groove 10, but completely in the recess 8 below the upper sides of walls 24 and 26 defining the sides of recess θ. The lower jaw 20 is pivotable on a bolt mounted in a pair of brackets 30 which extend downwardly from the upper jaw 18. A coil spring 32, which is seated in a countersink in the bottom of the recess 12, presses the lower jaw 20 into contact with an underside of the upper one Jaw 18 with the spring 32 held in place by a stationary pin 34 which extends downwardly from the upper jaw and passes freely through a hole 36 in the lower jaw.

To the free ends of the lower jaws 20 engage opposite, and the jaws 20 overlap ends of a rod 40 in the recess 8, the rod 40 being mounted on a pair of arms 42 which are pivotably mounted in a rod 44 fastened to a base of the recess 12. Plates grip the opposite ends 46 and 48, respectively, on cam lever arms 50 and 52 from, for example

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hard plastic attached to one side of the body 4 protrude through slots 54 formed therein. The cam levers are mounted for pivotal movement on pins 56 mounted in the body 4.

When either the cam 50 or 52 is pushed into the body 4, such as when the weaver 2 enters a gun box 60 (see FIG. 6) and the cams engage an inner surface of a wall 62 of the gun box 60 which has a gun holder 64 , the plate 46 or 48 swings about the pin 56 and pivots the rod 40 downward in the direction of arrow A in FIG open upper and lower jaws in each pair 14 and 16 as shown with respect to pair 14 in FIG. Opening this gap exposes a weft (such as weft 58 in Figure 7) that was previously held between a pair of jaws. When the inward pressure on both cams 50 and 52 is released, such as when the weaver's ship has left the shuttle box, the springs 32 push the lower jaws upward to engage the upper jaw, thereby engaging a weft thread by a pair of Allow baking. The upward movement of the lower jaws pivots the rod 40 upwardly, causing the plates 46 and 48 to be urged against the inner surface of the wall 26 to the cams 50 and

52 to its fully outwardly protruding position from the side of the weaver's ship.

A weaver ship built in this way can be used on a loom, to carry out a weaving sequence as shown in Figures 8-15, the figures being schematic and the movements for clarity of the various components are shown taking place in the same plane, although different of these movements are in fact take place in different levels. The weaver is shown at 2 and a pair of rifle boxes at 60 a and 60 b, of which the weaver 2 is shot by any device, for example by conventional striking arms. The warp thread compartment is denoted by 70 and a per se known sheet 72 of any type is moved in a known manner to take up the warp threads. Weft threads 58 a and 58 b are fed from stationary yarn packs * 74 and 76, respectively, on opposite sides of the loom

are attached. Each of these threads runs through an eyelet 78 a and 78 b a corresponding thread feeder 80 or 82, which are attached to opposite sides of a comb drawer (not shown), which the Sheet 72 takes up. The eyelet of each encoder can be moved up and down relative to the comb drawer by moving a corresponding cable pull, which is attached to the loom frame (not shown) so that it can pivot on one side with the encoder and on the other side with a Lever is connected. The lever is mounted to the

Cable pull corresponding to the rotation of a respective cam (not shown and hereinafter referred to as the encoder cam) to move, which engages a cam follower on the lever. This encoder cam is attached to the half-speed shaft of the loom, which is in the Loom construction is well known. When a donor is lowered relative to the comb drawer, the eyelet 78 a or 7 S b gets into the groove 10 of the weaver ship, which passes the donor and the weft thread running through the loop is attached to the weaver ship and detected by it. When the encoder is raised, the eyelet 78 a or 78 b are lifted from the loom and the thread of the eyelet does not come with it in touch. By appropriately shaping the encoder cams, everyone becomes Encoders 80 and 82 raised and lowered in the * sequence described below.

The weft threads run between the weft thread pack and the donor loop 58 a and 58 b by yarn tensioners 84 and 86, similar to those that in pending British Patent Application No. 30044/69 which is synonymous with British Application No. 8679/69 and 30043/69 is. Each tensioner contains a tensioner arm 88 which is pivotally attached next to a contactor box 60 a or 60 b is. The tensioner arm 88 carries a triangular guide eye 90 through which the weft thread runs. Each tensioner arm 88 is relative to the loom can be swiveled up and down by the movement of a corresponding cable pull, which is on one side with the arm and on the other hand is connected to a lever pivotably attached to the loom frame. This lever is pivoted,

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in order to move the cable pull in accordance with the rotation of a respective cam (hereinafter referred to as the tensioner cam), which on is attached to the half speed shaft and engages a cam follower on the lever. The weft thread runs through stationary, hollow, conical yarn guides 92 mounted on opposite sides of the eyelet 90. The weft also runs between you Pair of yarn guide plates 94 a or 94 b, which face each other and in their middle on a common, stationary Bolts are attached. The plates are compressed by a spring with such force that they grasp the thread and its Prevent passage until they are separated from one another by a pin 96 inserted therebetween. The pin 96 is on the Clamp arm attaches and is inserted between the plates by lowering the arm and removed from the plates when the arm is raised will. The tensioner arms are raised and lowered by suitable shaping of the tensioner cam in the manner described below.

Essentially vertical cutting knives 98 a and 98 b for the weft thread are on the "" "order side of the loom next to a support plate and attached along the ribbon of the fabric to be woven. Each knife has a cutting edge that extends outward from the fabric pointing sideways of the loom. The knives can be raised during the blade felling (as shown in dashed lines in Fig. 10 and 15 indicated) in order to avoid a weft

to allow thread to run under the blades, but the blades are lowered again after the sheet feed to partially to protrude below the level of the part of the weft thread which extends from the bandage to the donor eyelet. The raising and lowering the knife in the sequence described below can be done by any arrangement. The knives are on swivel mounts attached, which is lifted relative to the loom by pulling cables (

and can be lowered, which are operated by pivoting levers, moved by rotating cams mounted on the half speed shaft to engage the mounts as the blade advances is moved, with the protruding parts releasing the mounts when the blade moves back, so that the knives in the return to the lowered position.

In Fig. 8, blade 72 is in the rearward position. The donor eye 78 a is lowered and you. Eyelet 78 b is raised. The arm of the twine tensioner 86 is completely raised so that the yarn guide plate 94 b grasp the weft thread 58 b. The arm of the thread tensioner 84 is complete lowered and the weft thread 58 a runs freely through the squeezed out yarn guide plate 94 a. The weft threads 58 a and 58 b extend over the knife edges of the lowered cutting knife 98 a and 98 b. When the weaver's ship is shot and the box 60 a leaves, the pairs of gripping jaws 14 and 16 close. The weft thread 58 a attached through the eyelet 78 a engages under the upward

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curved part of the upper jaw 18 of the right pair 16 (on the right with respect to the drawings) and is closed in the The pair of gripping jaws 16 is pinched when the loom passes the yarn dispenser 80.

The weft thread 58 a detected in this way is carried by the weaver 2 into the compartment (FIG. 9) and is also firmly against the edge of the Cutting knife 98 a pulled, whereby the thread is separated from the right band of the fabric.

When reaching the other side, the weaver 2 enters the shooting box 60 b and causes the jaws to open to the Weft thread 58 a to release (Fig. 10).

Now the sheet moves forward (Fig. 11) and presses the weft thread 58 a forward. During this forward movement, the arm of the thread tensioner 86 lowers slightly to close the thread 58 b relax and prevent him from being captured by the blade movement that advances the eyelet 78 b. At the same time will the arm of the twine tensioner 84 is raised. This releases the pin 96 of the thread guide plate, which grasp the thread 58 a, so that the Lifting the eyelet 90 of the yarn tensioner 84 exerts a train on the weft thread 58 a and the latter in essentially the longitudinal direction

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moves and pulls the shed taut to give the woven fabric a pleasing and firm appearance and to shorten the loose end of the weft thread protruding beyond the left band. When the sheet moves forward, the knives 98 a and 98 b are raised to let the adjacent weft thread 58 a pass underneath.

When the sheet moves back to the position shown in Fig. 12, the knives are lowered and the arm of the twine tensioner 86 returns to the fully raised position.

Immediately before the shot of the loom 2 from the gun box 60 b in Fig. 13, the eyelet 78 b is lowered and the eyelet 78 a is raised. The arm of the yarn tensioner 86 is completely lowered, relaxes the yarn 58 b and opens the yarn guide plate 94 b. If the shot Weberschifjf passes through the eyelet 78 b, 58 b of the weft is in the closed ge, left gripper jaw pair 14 is clamped and detects it. The thread is then carried through the shed and drawn against the cutting knife 98b to separate the weft thread from the left sliver.

The jaws release the weft thread 58 b when the weaver enters the gun box 60 a, as shown in FIG .

The sheet 72 moves forward again, as shown in Fig. 15, to advance the weft thread 58 b and the knives 98 a and 98 b

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uerden lifted. At the same time: the arm of the thread tensioner 84 is lowered; C ⁵ ";" f <58 to relax a slightly and the arm of Garnspanners 86 is lifted vollstänoig, tightly pulling around the thread 58 b and to shorten its loose end.

When the sheet returns to the rear position, the reverses Twine tensioner 84 back to the fully raised position. The eyelet 78 a is lowered and the eyelet 78 b is raised.

Now the thread tensioner 84 is completely lowered in order to relax the thread 58 a and to open the thread guide plate 94 a, As shown in Fig. 8 and the above sequence is repeated.

In an alternative modification, a (shown in Fig. 9) Fixed eyelet 100 on each side of the loom for the weft thread (uie, for example, 58 b shown in FIG dashed lines) to pass through from the tensioning eye 90 to the adjacent donor eye, uelche in the case of the weft thread 58 b, the donor eyelet 78 b is. Each eyelet 100 is on the loom between the back position of the leaf and the case of the fabric and is attached outside the path of the leaf. The movements of the tensioner arms 88 are modified so that after one arm is fully raised in order to be able to move the

WtISi Dien document (description and Sdiutzaiupr.) Ut the most recently submitted; This differs from the definition of the documents submitted. The legal significance of the deviation is not checked. The originally submitted documents are in the Amiiokton _v .

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to be entered into without renunciation. Upon request, photocopies or film negatives can also be delivered to the OblichtirTreiien. β UU [6.Wi

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Sheet to pull on a weft in the compartment that Arm on the return of the chest to the back of the loom and before the next shot is fired through the transept, it is completely lowered again. The arm 88 the tensioner 86 is completely lowered during the exercises, which correspond to those in FIGS. 8-12, 14 and 15. Consequently, the weft thread 58 b is loosened enough to during the forward movement of the dam box to avoid breakage of the same. During the return of the comb drawer to the In the rear position, the attachment of the eyelet 1GG holds the length of the weft thread 58 b between this eyelet and the Salband almost constant. This ensures that the part of the weft thread 58 b that extends from the bandage to the donor loop 78 b, is pulled taut enough that the lowered knife 98 b hooks over this part and ensures its cutting when the weft thread 58 b in one {. 13 corresponding step through the transept

is brought into the compartment. Likewise, on the other side of the loom, the arm 88 in the tensioner 84 is complete lowered when the comb drawer returns to the rear position in a step corresponding to FIG. 12 and remains complete during the steps corresponding to those in FIGS. 13, 14, 15, 8, 9 and 10.

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The conical-shaped guides 92 and the triangular-shaped eyelets 90 have diverging sides to reduce the possibility of the Tangling of the weft to reduce these guides and eyelets, the thread should vibrate as it is pulled through the arms of the tensioners 84 and 86.

If desired, the thread dispensers 80 and 82 can be removed from the comb drawer and mounted on or next to the shuttle boxes and can be arranged to insert weft thread into a pair of looper jaws while the jaws are from the cam lever are still held open, which attacks the side of the box.

There is one advantage of the rapier weaver described above in that its body is substantially similar in shape to the body of a conventional weaver's ship which houses a bobbin. As a result, the rapier weaver can easily be combined with conventional shooting boxes, striking systems, blades and Comb drawers and compartment systems are used.

Protection claims

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Claims (8)

*, ■ ■ I It - 14 - claims for protection 1. Marked rapier loom for a loom by an elongated body (4) formed with a recess (8) in its upper side, a weft gripping device (14, 16) fixed in the recess (8), a movable cam (50, 52) protruding from one side of the body to be attached to a surface of a shuttle box on the loom to attack and to be moved by the attack if the Weber ship enters the box during use, the Gripping device (14, 16) is opened by such movement of the cam (50, 52) and the recess (8) contains a groove (10) - the-s i extends in the longitudinal direction of the top of the body. 2. gripper weaving ship according to claim 1, characterized by two pairs of gripping jaws (14, 16) which are in the recess (8), each pair (14, 16) facing in an opposite direction along the body (4) and an upper jaw (18) and a lower jaw (20) cooperating therewith a spring (32) imparting gripping pressure to the lower jaw (20), two pivotably mounted cam levers (50, 52), which from the side of the it m / ft \ - 15 - Body (4) protrude and both can be moved into the body, wherein inward movement of one of the cam levers (50, 52) opens the jaws (18, 20). 3. gripper-weaver ship according to claim 2, characterized in that that each upper jaw (18) is stationary and the respective ~ \ lower jaw (20) can be pivoted relative to the upper jaw (18) can and a movable rod (40) of the lower jaw (20) against the The action of the spring (32) gives the jaw-opening downward pressure as a result of inward movement of one of the cam levers (50, 52) pressure applied to the rod (40). 4. gripper weaving ship according to claim 3, characterized in that the rod (40) in response to by inward ^. movement of one of the cam levers (50, 52) exerted on it transverse pressure is arranged pivotable downwards. 5. gripper weaving ship according to any one of claims 2-4, characterized characterized in that a portion of each upper jaw (18) diverges upwardly from the corresponding lower jaw (16) is to create a permanent gap to accommodate .Schußfaden between the part and the lower jaw. 6. Loom, characterized by the combination - 16 - with a rapier weaving ship according to one of claims 1-5. 7. Loom according to claim 6, characterized in that that the loom is provided with a movable cutting blade (98 a, 98 b), attached for a part of weft thread (58 a, 58 b), which extends from a salk edge of a fabric to be woven to the weaver's ship (2) in order to be drawn against the blade (98 a, 98 b) and to be cut during the shot and the knife (98 a, 98 b) can be moved out of the cutting position in order to avoid a weft thread (58 a, 58 b) when the weft thread is pushed forward by the sheet will. 8. Loom according to claim 6 or 7, characterized in that a pulling device (84, 86) is provided, around a weft thread (53 a, 58 b) essentially in the longitudinal direction ν of the weft in a shed (70) of warp threads during advancement to move through the sheet.