KR20060005407A - Slidejet Release Lever - Google Patents

Abstract

The invention relates to a device for the air treatment of yarn in a yarn channel, at least partly arranged in a movable die base, which may be placed in an open threading position and a closed operating position under spring tension by means of a sliding lever. Said device comprises an integrated release lever with force multiplication for relieving the spring pressure by means of the release lever.

Description

SLIDEJET RELEASE LEVER {SLIDEJET RELEASE LEVER}

The present invention relates to an apparatus for air treatment of yarn in a yarn channel, the yarn channel being arranged at least in part within various die bases. The device has a fork-shaped heavy yoke with a carrier at the top and a bottom and also has spring tension and the die base is opened with a sliding lever and an open threading position and a closed working position. operating position).

Devices for the treatment of twisted yarns, such as, for example, swing nozzles and air blow texturing nozzles, are known today by the term "SlideJet." For example, a slide jet, such as EP 0 851 945, is functionally composed of four key components:

-Die base with open CS channel

-Spring to press the foot plate onto the die base

-Die base formed into yoke shape

And also consists of switchable air connections.

The housing consists of a large carrier frame or yoke, in which the die base is pushed back and forth under the spring pressure by the switching movement of the slide-lever and the device can be brought into the threading position turning to the operating position. . At the same time, the air supply is freed or closed by the slide movement. Due to the structural construction of the slide jet nozzle, two basic requirements must be met.

Firstly, closed parts that are relatively movable to each other must be moved under sufficient pressure to function as a compressed air valve to open or close the air supply, resulting in compressed air loss in any place due to an unsealed location. Should not.

The second basic requirement comes from the continuous fire treatment process. CS processing is first performed in the CS channel. The twisting channel is formed on the one hand by a die base having an air supply and on the other hand by a foot plate lying opposite. The foot plate is moved relative to the die base for switching from the operating position to the threading position. It is required that there is no gap between the reaction plate and the die base. Lateral gaps lead to the risk of dust accumulation in itself and, concomitantly, deterioration of operating conditions. Individual filaments can be assembled in the gaps and cracks can follow.

For both of these basic requirements, parts that are relatively movable relative to one another by compression springs are subsequently compressed. This is subject to the correspondingly powerful slide lever or forceful handle to bring the slide lever from one position to another. The above-mentioned transition from the operating position to the threading position has proved to be very good and is used today as a standard solution. The die base must be dismantled and reassembled from time to time whether it is cleaning the die base or inserting another die base. In the case of a metal die base, wear due to thread passing is large. The higher the rate of continuous transportation, and the greater the continuous force, especially for swing nozzles, the sooner the diebase should be replaced. The replacement is made in the prior art by the use of a special insertion key in which the spring tension for preassembly and for disassembly is reduced.

One solution is known from International Publication No. W003 / 069036, in which case a correspondingly constructed plastic body is used instead of a heavy yoke. The elasticity of the plastic yoke is used instead of the actual spring. In this case, the disadvantages of long-term loss of tension are the difficult assembly and disassembly of the die base and also the difficult to define and relatively small pressing forces and typical properties of synthetic resins.

The present invention is based on the task of improving the switching function of the threading position and the operating position in such a way that the advantages of the solutions of the prior art in connection with the replacement of the die base and with respect to the optimization of the spring pressure are not compromised.

The solution according to the invention is characterized in that it has the aid of a solution combined with force transmission for the reduction of spring pressure.

One particular key has the advantage that the spring tension is unconsciously reduced at any switching position but it is known by the inventors to bring various disadvantages. It is certain that a relatively large spring tension is required for the aforementioned basic functions in proportion to the smallness of the air treatment device. In practice, it has been shown that the compression spring acts via tension of 100N or more, preferably 120-200N, in order to ensure that the required functions are actually achieved and above all, always in clean contact, regardless of the switching position. For many people it is difficult to release such spring tension with bare fingers to remove the die base from the device or to reassemble it into the device without interruption. In the prior art, the fact that the solution lies in a size class of only about 1 millimeter is completely overlooked. This means that the key to the above function is fully achieved with the aid of a structurally relatively small release lever having a force transmission in accordance with the invention, wherein the aid of the release itself can also undertake the transmission of the spring pressure. With this, there is no key that can be inserted separately from the outside for each replacement process, and the corresponding workflow is greatly simplified. Integrated release aids can be organized in a number of ways. The key idea of the new solution is that the release aid remains on the device permanently. One release lever may be attached to the device from the inside as well as the outside. The best solution is now to integrate inside the device. This new invention is capable of a corresponding number of particularly advantageous configurations and relates to claims 2 to 17.

In a particularly advantageous way the spring tension lever near the die base is reduced by articulation as a shorter lever, where the spring pressure is applied to the slightly longer lever part on the opposite side. In this case the spring tension lever has the advantage that a force transmission is given for the spring pressure. The spring pressure is transferred to the die base via a springboard as in the prior art, where in the threading position the slide part or die base can be easily removed from the device after the spring pressure is reduced through the springboard.

The spring tension lever may extend beyond the place of action of the compression spring in accordance with the first configuration of the hand for the actuation of the lever part on the opposite side of the foot plate. The release lever is provided with an additional manual lever operable from the outside, and in the case of the manual lever, additional actuation force is reduced in order to reduce the spring force required by the finger. This allows even a relatively strong compression spring to lift the spring force onto the die base with a small actuation force, for example a thumb, which can be removed from the device. The release lever is preferably formed in a disk shape and arranged inside the device, in which a rebound plate having a slightly bendable property is linked to the release lever. The springboard is elastically guided along with the release movement of the release lever in such a way that it opens and opens slightly conical when the release lever operates. This facilitates the introduction of the die base to the slide part since an entry opening is formed which slightly expands in a conical shape.

The device has a yoke formed as a fork shaped carrier frame. The yoke is open forward in the direction of the burst channel and has upper and lower carriers, wherein the lower carrier has slide guides and also compressed air connections and the upper carrier for the slide lever and for the release lever. Have a place for stocking. In an advantageous way the upper carrier is formed of two parallel carrier walls, wherein the release lever and the slide lever are arranged between both carrier walls. The release lever is formed of a thin metal plate and is guided between two carrier walls with slide plates laterally. This means that parts that require high forces are processed with metal and parts that are lightly loaded or hardly loaded are made of synthetic resin and enable easy and cost-effective manufacturing. The switching function is completely mechanically separated from the function of the release of the spring pressure or the removal of the die base from the device in the case of the above configuration with an extended release lever for the threading position and for the operating position.

According to the idea of the particularly advantageous configuration of the present invention, the slide lever is a part of the release aid in such a way that the slide movement and the reduction of the spring pressure are carried out by the slide lever.

Advantageously the actuation of the slide lever comprises two regions: a first region for the slide movement and a second region for the release movement. The great advantage of this solution is that the pressing force of the springboard against the die base can be precisely defined in each relationship. In the closed operating position, the pressing force is the whole size. This also applies during the slide movement while the yarn is located in the twisting channel in an advantageous manner and most of it is being pulled through the twisting channel at a conveying speed. If the twisting channel is open, the pressing force is completely reduced without defects and the rebound plate can be removed for easy replacement of the die base.

According to another configuration, the slide lever has one release cam or release eccentric on its axis of rotation. The spring pressure is reduced by the operation of the slide lever together with the holding of the spring tension lever. Furthermore, the release eccentric can be integrated with the slide movement for the die base during the operation of the slide lever and also with the effect of the removal of the springboard from the die base, where the spring tension is already applied during the slide movement. Continued relief.

In an advantageous manner, with the release motion, the foot plate is accumulating articulated to the release lever in all configurations in such a way as to "open the mouth" for easy receipt and removal of the slide part. The die base described above can be arranged inside the slide part as a replacement part, where the slide lever is gripped into the slide part by the grip pin and disengages the mechanical slide-gripping into the threading position. This makes it possible to operate the release lever irrespective of the position of the slide lever, with the result that on the one hand the operation of the release lever facilitates the switching movement of the slide lever and on the other hand the die base to slide in the threading position. The part can be removed.

1 is a cross-sectional view of a device according to the invention;

2a shows a position with the operation of a release lever having a foot plate for assembly and disassembly of a slide part;

2b shows an enlarged cross-sectional view of the support of the joint of the foot plate;

3 shows the complete removal of the slide part;

4 shows an apparatus for the air treatment of the twisted yarn in the blocked operating position;

FIG. 5 shows the apparatus of FIG. 4 in an open threading position but without the thread guide; FIG.

6a and 6b show another configuration of the release lever in the case of an open and closed nozzle housing;

7a to 7f show the most important sequence steps for dismantling the slide plate to die base;

8a, 8b and 8c show an idea of another configuration, where the release movement is also activated through the release cam by the movement of the slide lever;

9a, 9b and 9c show the release eccentric for the dismantling function instead of the cam;

10a to 10c show various views of a closed nozzle with assembled thread guides;

11A-11D show various views of a closed nozzle with thread guides arranged at greater spacing in the nozzle housing.

1 is a cross-sectional view of a device of the first solution for the air treatment of twisted yarns, wherein a part of the housing 1 and above all the slide lever are omitted. This allows the motor function of the new solution to be clearly marked. Only the lower carrier 2 is shown from the housing 1. The upper carrier 3 (FIG. 5) is omitted. The release lever 4 is confined to the upper carrier 3 by articulation via the rotation axis 5, where the rotation axis 5 with the housing 1 is represented with a fixed position. ) Is marked as a circle with a dot in the center. In the forward part, the release lever 4 has an approximately circular nose 6 which is held in a correspondingly concave shape 7 of the repellent plate 8 (FIG. 2B). The rebound plate 8 is supported by the nose 6 via the joint coupling place 9, and as a result, the rebound plate 8 has a die base surface which is flat to the die base 10 (FIG. 5). Minimal suitability compared to (10 ') (FIG. 3). The release lever 4 has a short lever arm KH with respect to the rotational shaft 5 and a long lever arm LH, whereby the release lever 4 is operated, for example, by 1: 3. The transmission ratio of the force occurs. The release lever 4 is denoted as FSH and at the same time also a spring tension lever. The length ratio KH: FSH is 1: 2 as an example shown. As a result, the spring force FK of the compression spring 11 is doubled as recorded in FIG. 1 as arrows 12 to 2FK. This means that the rebound plate 8 is pressed over the rebound plate 10 with a doubled spring tension.

The result of the pressing force of the repellent plate 8 on the die base 10 is that the die base 10 and the corresponding slide part 13 having the die base 10 therein are moved in the horizontal direction with the corresponding force. However, it cannot be removed from the device. In the prior art the spring force has been extinguished by a special key for this purpose. This new invention now proposes that the dismantling function is achieved by the release output LK via the release lever 4, where the release force acts on the long lever arm LH. The lever part 14 of the lever arm LH is indicated by a dotted line and is further extended for the manual operation HB. In this case, the lever ratio is larger by the lever part 14 protruding outward. The embodiment shown in FIG. 1 is not only a compact structure but also allows further reduction of the operating force required for manual operation by means of an additional manual lever 15. The hand operated lever 15 is supported from the upper carrier 3 via the bolt 16 and can perform only a small turning movement corresponding to the arrow 17. FIG. 1 shows the position having the full action of the spring force to the die base 10 via the repellent plate 8. At the outer end of the right side, the release lever 4 has a gripping point 18 of approximately circular section shape, which is additionally marked by R. The release lever 4 is provided with a pressing surface 19 as a counterpart. From this, in the case of the pressing of the hand operated lever 15 around the joint site 16, the release lever descends downward in the clockwise direction, the spring tension FH is raised upwards and the rebound on the die base 10. The involvement of the force of the plate 8 is released, as a result of which the die base 10 to the slide part 13 can be freely removed from the device. Furthermore, in Figs. 2A and 3, the rotating shaft 20 is marked black, which is fixed to the upper shaft 3 as well as the rotating shaft 5 and the bolt 16. The slide lever 21 (FIGS. 4 and 5) is supported by the rotating shaft 20. As shown in FIG. As will be explained later, the upward movement of the slide lever 21 allows the companion pin 22 to push the slide component 13 horizontally through the corresponding gripping shaft 23 (FIGS. Third degree). In FIG. 5 corresponding to the fully open position to the threading position the companion pin 22 releases the gripping, in which case a spring force, however, pushes the repellent plate 8 over the die base 10.

2a shows the release position simultaneously with the companion pin 22 in the open threading position. Arrow 30 shows that the hand operated lever 15 is pressed on the housing 1 to the stop position. In this case, the manual lever 15 is pivoted around the bolt 16 lightly and slightly lifted up on the drawing, and is released together with the repellent plate 8 via the holding place 18 to the pressing surface 19. Raise the lever. This is the position for the release of the die base to slide part to completely remove the die base to slide parts from the device. 2A shows the removal movement with the horizontal arrow 31. In FIG. 1 and FIG. 2, the air valve function can be seen at the same time. In FIG. 1, the compressed air connection holes 32 in the lower carrier 2 and the blowing channel 33 in the slide part correspond. In the above position, the compressed air can be blown into the twisted channel 44 through the blown air hole 34. In Fig. 2a both holes 32 and 33 are moved (VL). The compressed air connection remains closed as long as the spring force FK acts on the die base 10. In the case of position according to Fig. 2a, compressed air must be blocked according to Fig. 2a.

2b shows an enlarged view of the fragment with respect to the repellent plate 8 to the nose 60. The fragment shows an advantageous configuration of the release lever together with two slide plates 36 guided and moved in parallel, on which faces of the slide plates are attached an elastic nose part 35. This elastic nose part 35 accompanies the reaction plate during the opening and closing movements (Fig. 2A).

3 shows the complete withdrawal of the slide part 13 from the device with the arrow 34.

4 and 5 are subsequently mentioned. 4 shows the closed operation position of the continuous yarn treatment apparatus 40. As shown in FIG. The slide lever is correspondingly in the lowered position. The twisting yarn 41 passes through the twisting channel and obtains a special organization, whether it is turning or weaving in the form of a twisted twister or loop yarn 41 ^* . Thread guides 42 are attached to the housing 1 or to the slider lever 21, as indicated in FIG. 4, depending on the special twist treatment. In FIG. 4, an air connection nipple 43 is additionally indicated. . 4 and 5 correspond to the solution according to FIGS. 1 to 3. In figure 5 it can be seen that the release lever 4 is made in the shape of a disk, preferably consisting of steel. In contrast, both slide plates 36 are made of synthetic resin. Very particularly advantageously the die base 10 and also the rebound plates are made of ceramic. The upper carrier has two parallel carrier walls 3, 3 ′, which surround two slide plates consisting of a flat release lever 4 in the center and preferably a synthetic resin. 5 shows the open threading position with open CS channel 44 on the one hand and the position for the start of the actuation of the release lever as indicated by the dotted arrow 30 'on the other hand.

6a and 6b show yet another configuration of the release lever 14 corresponding to the extension portion 14 dotted in FIG. 1 in an open to closed position, respectively. From top to bottom, the force acting on the arrow HB can also be released here by hand.

7A-7F illustrate the removal of the slide part. FIG. 7a corresponds to FIG. 4 and shows a closed operating position. The slide lever is shown in the lowered position, compressed air for this purpose the connection 43 to the compressed air hole 32 of the CS channel (44) for the passage of the shutter (41), (41 ^*) for the air treatment It can be supplied via, 33 (FIG. 1). The slide part 13 is pushed forward by the flap toward the top of the slide lever 21 (FIG. 7B) and realized by movement by the dimension ML of both the compressed air holes 32,33. At the same time, the air supply is cut off (Figure 2). The spring pressure is raised upward through the rebound plate by the pressing of the release lever 15 according to the arrow 30 and the gripping of the slide shaft is freed into the gripping groove, as a result of which the slide part 13 moves forward freely. Can be pushed. The slide part is now released from the device described above (Figs. 7d and 7e) and the die base 10 can be released from the slide part 13. Reassembly takes place in the opposite direction to FIGS. 7A to 7F.

8A to 8C show an embodiment of the second solution. The slide motion is formed in the same manner as in the first solution. In the second solution, the slide lever 21 is a part of the release support at the same time. In the case of the operation of the slide lever 21 the spring force is lifted up in the open threading position having the last range of the slide lever movement and the foot plate 8 is slightly removed. Figure 8a shows the device in a closed operating state. The spring tension lever 50 is retracted via the rotating shaft 5 and presses the rebound plate 8 over the die base 10 in the direction of the spring force 2FK in the counterclockwise direction via the compression spring 11. In FIG. 8A the release cam 51 is at the highest position and not at the grip of the force. FIG. 8B shows the slide lever 21 in the lifted position, where the slide lever 21 is made to be pressed upwards corresponding to the angle α around the rotational axis 20. The release cam 51 is already in contact with the lower subwall 52, which is part of the spring tension lever 50, exerting a release force corresponding to the arrow FKL and consequently the spring force 2FK. It is mounted on the repulsion board 8. This is symbolically indicated with a gap 53 between the backplate 8 and the die base 10. 8C shows the slide lever in the highest position. The release cam is in the lowest position and presses the spring tension lever 50 downwards. The angle β suggests a light removal of the rebound plate 8. In the position according to FIGS. 8A, 8B and 8C, the die base 10 to the slide part 13 can be assembled or disassembled from the device without interruption.

9A to 9C show an embodiment having a release eccentric 54 instead of the release cam 51. The release eccentric has the advantage of reducing the spring tension and removing the backlash 8 from the die base 10 to smoothly transition into each other. The slide motion is thereby at least partially relieved of pressure. According to another idea, a kind of snap function is constructed by the assembly of a corresponding spring to the slide lever, as a result of which the spring lever pushes the slide lever to both end positions. It prevents you from being in an intermediate position that does not correspond to a closed operating position.

10A, 10B and 10C show a device having a thread guide 42 which is integral to the thread guide support 45. In the example of FIGS. 10A to 10C before the entry and discharge of the twisting channel, the yarn is formed by 26 °. The thread guide itself is attached to the slide lever and moves with the slide lever movement.

11A-11C show thread guide rollers 46, which are fixed to the housing 1 via a finger plate 48 and also a screw 47. Compared with the small span interval K1 of FIG. 11C, the larger span interval Absp.G forms, for example, a small span interval angle of 11.7 °.

The idea of a particularly advantageous configuration of all solutions is that the service location is configured to restrain itself and as a result the location cannot change by itself.

The present invention can be used in the slidejet release lever.

Claims (17)

Apparatus for air treatment of twisted yarns in a twisting channel, wherein the twisting channel is disposed at least in a partially slidable die base, wherein the apparatus has a fork-shaped large yoke and spring tension with upper and lower carriers and In a device for the treatment of twisted yarns in a twisting channel, which can be brought into the threading position opened by the slide lever and into the closed operating position, And the device includes an integrated release support with force multiplication to relieve spring pressure. The method of claim 1, The spring pressure can be transmitted on the die base via the foot plate, where in the threading position the slide part or die base can be easily removed from the device by the release aid by reducing the spring pressure; Wherein in the threading position the repellent plate can be brought to a position that is easily removed relative to the die base. The method according to claim 1 or 2, And the spring is part of a release aid. The method according to any one of claims 1 to 3, The foot plate is articulated with a slight flexibility to the spring tension lever and, together with the release movement of the spring tension lever, the foot plate is moved forward in operation of the release aid to facilitate entry of the die base or slide part into the device. The device characterized in that it is guided in an open and lightly enlarged conical shape towards The method according to any one of claims 1 to 4, The device is open toward the front in the direction of the burst channel and has a fork-shaped yoke with upper and lower carriers, wherein the lower carrier has slide guides and also compressed air connections and the upper carrier is A device for the slide lever, wherein the compressed air connection has a valve function with the slide movement of the die base; The method of claim 5, The upper carrier is formed of two parallel carrier walls, wherein the spring tension lever and the slide lever are arranged between both carrier walls. The method according to any one of claims 1 to 6, The mounting lever is formed of a thin metal plate and is laterally guided with slide plates that can move together between two carrier walls. The method of claim 1, wherein The mounting lever is connected to the rebound plate, wherein the slide plates that can move with the spring tension lever force the conical opening of the rebound plate through the elastic nose portion. The method according to any one of claims 1 to 8, The die base is arranged inside the slide part as a replacement part, wherein the slide lever is gripped in the slide part via the companion pin and releases the mechanical slide-gripping in the threading position. The method according to any one of claims 1 to 9, The release aid is characterized in that the threading-and-operating position switching function is completely separated from the function of relieving the spring pressure or pulling the die base out of the device. The method of claim 10, The spring tension lever is bearing with a joint connection near the die base and the spring pressure is held on an opposing lever. The method according to claim 10 or 11, wherein The spring tension lever for manual operation extends beyond the gripping position of the compression spring on the lever part opposite the foot plate and is preferably formed in a disc shape. The method according to any one of claims 1 to 9, The slide lever is an apparatus for releasing assistance in such a manner that the slide lever can reduce the slide motion and the spring pressure by transmitting the force. The method of claim 13, And the slide lever has a release cam or release eccentric on its axis of rotation and the spring pressure can be reduced by gripping in the spring tension lever by actuation of the slide lever. The method according to claim 13 or 14, The operation of the slide lever is characterized in that it comprises two regions, a first region for the slide movement and a second region for the release movement. The method of claim 13 or 14, The release cam or release eccentric is characterized in that the slide movement for the die base upon operation of the slide lever and also that the reduction of the spring pressure coincides with the effect of the removal of the foot plate from the die base so that the slide movement is at least partially pressured. Apparatus characterized in that it is formed in such a way that the load is reduced. The method according to any one of claims 1 to 16, Spring tension with a compression spring is configured to apply a tension of 100 to 200N or more in the closed operating position.

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