CN100436669C - Spinning frame with twisting device - Google Patents

Abstract

A spinning frame with a main frame (412) and a drafting unit (1), with a suction pipe (408), a suction system, a twisting device (3) for a roving (71) and a roving (71) Spinning device (5), wherein several such devices are arranged next to each other in the spinning frame, and twisting elements (31) are installed in the twisting device (3), with fixed suction elements (37) A suction device (4) is installed on the twisting element (31) so that the exhaust air passing through the twisting element (31) enters the suction element (37), characterized in that in each area, can Several different yarns are produced, and the spinning frame is divided into several parts by contour lines (S2) and (S1), which can be divided into four parts, and a plurality of spinning places (5) are arranged on the two longitudinal sides of the spinning frame , in the spinning place, different materials or the same material with different conditions can be processed, depending on the sections assigned to them.

Description

Spinning frame with twisting device

technical field

The invention relates to a spinning frame, in particular to a ring spinning frame with a twisting device installed between a drafting unit and a spinning device.

Background technique

Such an arrangement is described, for example, in publications with patent application numbers 19726694.0 and/or 19944444.7. The content of the above-mentioned patent application relates to a part of the present invention. The position of the spinning frame of the above-mentioned type in the International Patent Classification is D01H-1/22.

Contents of the invention

The task of the present invention is to provide a part of the twisting device which makes the production more economical and the installation more convenient. Also when operating spinning frames with twisting devices, it is of the utmost importance that maintenance and repair work be completed in the shortest possible time. When operating a twisting device, one requirement of the operator is easy access to the individual components without any special effort in terms of strength and careful working methods.

The invention provides a spinning frame with a main frame and a drafting unit, with a suction pipe, a suction system, a twisting device for a roving and a device for spinning a roving, wherein several such devices are in the spinning frame Arranged adjacent to each other, and twisting elements are housed in the twisting device, a suction device with fixed suction elements is installed on the twisting elements, so that the exhaust air passing through the twisting elements enters the suction Element, characterized in that one of the suction insert, the suction insert connection and the suction tube is provided with orifices, and due to these orifices the suction behavior is different at different suction positions, resulting in There are different twisting effects in the spinning frame.

The spinning frame provided by the present invention is characterized in that a support tube is connected to the suction element, and the support tube and/or the suction tube is introduced into a channel or a chamber connected to the channel, said The channel runs in the longitudinal direction of the spinning frame.

The spinning frame provided by the invention is characterized in that an orifice is provided on a transition piece coming from the chamber and leading into the channel.

The spinning frame provided by the present invention is characterized in that: the opening can be arranged on a flexible supporting seat element.

The spinning frame provided by the present invention is characterized in that the support tube of the suction insert is connected to the suction element, and the support tube and the suction tube are introduced into a chamber connected to a channel, the channel of which The orientation is in the longitudinal direction of the spinning frame, whereby a limited suction duct and/or support duct is introduced into such a chamber.

The spinning frame provided by the present invention is characterized in that: the openings can be selected or set simultaneously.

The spinning frame provided by the present invention is characterized in that only one opening is inserted into the transition piece.

The spinning frame provided by the present invention is characterized in that different adjustments are made using the orifices so that the degree of suction performance produced by a yarn in a certain area of the spinning frame is different from another suction performance produced by other yarns in another area. degree.

The spinning frame provided by the present invention is characterized in that: a transition piece is guided into the channel, and the transition piece is used to delay and change the air flow entering the channel at the same time, so as to avoid excessive blockage in the channel.

The spinning frame provided by the present invention is characterized in that the transition piece is a truncated cone shell with a nearly elliptical cross-section and an oblique axis A, and the axis A of the truncated cone is set at an acute angle with the main flow direction in the channel.

The spinning frame provided by the present invention is characterized in that the orifice is a hollow portion with an inner diameter for guiding air, and the inner diameter of the orifice is different at different positions on the spinning frame.

The spinning frame provided by the present invention is characterized in that an auxiliary pressure source is arranged at the end of the channel.

The spinning frame provided by the present invention is characterized in that a sensor is arranged at the channel entrance, and the sensor is connected with a detection device, and the auxiliary pressure in the channel is monitored by the detection device.

The spinning frame provided by the present invention is characterized in that: when the auxiliary pressure drops below 50-60 mm, the suction fan is blocked or fails, the sensor sends a signal, and the detection device can stop the entire spinning frame through the control unit.

The spinning frame provided by the invention is characterized in that the twisting distance is determined by the roller distance on the twisting element and/or by the length of the suction port in the suction insert, or by the width of the suction port, and the air in the channel can be Consumption and auxiliary pressure changes are adjusted to the desired level.

The spinning frame provided by the present invention is characterized in that the minimum auxiliary pressure is 100 mm Ws (=water column) at the distance from the auxiliary suction pressure source, and the value at the inlet of the suction fan is 200-250 mm Ws.

The spinning frame provided by the present invention is characterized in that it is provided with a passage or several passages for collecting the exhausted air, the passage having a cross-section between 0.07-0.14 square meters larger than the passages in conventional spinning frames cross section.

The spinning frame provided by the present invention is characterized in that: in order to optimize the suction system, the following influencing parameters can be adjusted:

- the size of the suction opening in the suction element;

- at the point of transition leading the air from the duct into the channel and/or at the air guidance from the transition piece into the channel so that the transition piece is arranged as a sloping diffuser;

- The variable space between the guide plate located on the upper part of the twisting element and the twisting element is set at 0.5-2 mm. The guide plate is set as a shield-like part. In this area, on the one hand, it affects the air volume, and on the other hand, it affects The twisting quality of the fiber flow.

The spinning frame provided by the present invention is characterized in that several suction passages are arranged, which can be arranged in the middle, upper part of the spinning machine, or in the lower part of the spinning machine.

The spinning frame provided by the invention is characterized in that: in order to optimize the suction system with the suction channel, the optimization is aimed at all working positions, each working position comprising a drafting unit with a twisting device and Assigned to a suction port of the drafting unit, and the twisting device and the suction port are connected by a suction channel in which a moderate pressure drop can be adjusted so that the adjacent auxiliary pressure source The auxiliary pressure reaches 180mm to 220mm water column (Ws) high, while the auxiliary pressure on the other side and/or end of the suction channel only drops to 60-100mm Ws.

The spinning frame provided by the present invention is characterized in that: in order to achieve different degrees of compactness at the spinning places, the materials can be strongly compressed or twisted at these spinning places, and these spinning places should be arranged on the spinning frame. If the spun yarns are far away from the auxiliary pressure source in the longitudinal direction, the twisting effect will be reduced, and it is difficult to well compensate the auxiliary pressure drop in the suction channel with the orifice.

The spinning frame provided by the present invention is characterized in that: a single spinning frame can produce several different yarns, the spinning frame is divided into four parts by contour lines (S2) and (S1), and a large number of spinning places Arranged on both longitudinal sides of the spinning frame, in the spinning place, different materials or the same material under different conditions can be processed and the different zones of the suction system can be adjusted, depending on the parts allocated.

The spinning frame provided by the present invention is characterized in that: a single spinning frame can produce several different yarns, the spinning frame is divided into several parts by contour lines (S2) and (S1), and a large number of spinning places are arranged On both longitudinal sides of the spinning frame, in the spinning place, in independently assigned sections, different materials or the same material under different conditions can be processed.

The spinning frame provided by the invention is characterized in that the different conditions that can be given do not mean that all twisting devices work in the same way, local compression and/or twisting in one or several parts, compared to other Part of the twisting has been completed.

The spinning frame provided by the invention is characterized in that different degrees of compression with different performance characteristics can be determined by means of the suction fan and the channels connected to said fan.

The spinning frame according to the invention is characterized in that, due to the suction fans of the same design or a single suction fan, the suction performance can be influenced in each spinning place and/or in the twisting device by operating the flaps.

The spinning frame provided by the invention is characterized in that: in order to produce different yarns or the same yarn with different technical characteristic values, the drafting units can be driven in different ways; the first drafting unit or each A row of drive units assigning different controllable electric drives to each roller.

The spinning frame provided by the present invention is characterized in that the electric drive includes a frequency converter, and the control device is used to start one or several such driving units in such a way that the power in one drafting unit can be changed independently relative to another drafting unit. Traction rate.

The spinning frame provided by the present invention is characterized in that: the suction fan can be controlled by the control device. If a frequency converter is equipped in the driving motor, in this way, the whole spinning frame or a part of the spinning frame can be The suction behavior in is controlled to suit the spinning conditions.

The spinning frame provided by the present invention is characterized in that the suction performance in the individual twisting device can be changed by using different sizes of orifices.

The spinning frame provided by the present invention is characterized in that in each part of the spinning frame on the right side of the contour line (S2) and above and below the other contour line (S1), correspondingly arranged twisting devices and spinning devices Different spinning conditions can be adjusted in order to produce different yarns, so that at least the following adjustments and/or textile technical features can be differently carried out and/or influenced at the corresponding positions:

- traction distance, depending on the movement of each other towards the conveyor rollers;

- spinning devices such as roll covers, rings and partitions in the drafting unit as well as travelers in spinning devices, shroud shapes and suction inserts; where the suction slots in the suction inserts have different lengths and widths , depending on the respective section and the distance between the detection rollers and/or the clamping rollers according to the strip length of the material to be processed;

- various material feeds and/or rovings leading to the drafting unit and spinning, and

- Twisting elements, in the corresponding parts, adapting the surface and behavior in the twisting elements to each corresponding part according to the needs of the handling of the material delivery device.

The spinning frame provided by the present invention is characterized in that: the control device in the spinning frame is set in such a way that if it has an electric or electronic device, it can be changed to different settings according to the spinning program, which is loaded in the control device.

The spinning frame provided by the present invention is characterized in that: in the connection line passing through the control device to each component, the control device can control the following positions:

- drive of the drafting unit;

- the drive of the fan;

- the drive of the spindle in the spinning place;

-Bezel drive.

The spinning frame provided by the present invention is characterized in that: because the auxiliary pressure that can act on the twisting device on one side of the contour line (S1) is higher than the auxiliary pressure acting on the twisting device on the other side, exceeding the contour line (S1) ), it is possible to obtain different compression and/or twisting effects, and subsequently, on both sides of this contour line (S1), yarns with different hairiness effects can be produced and the remaining technical parameters can be changed more or less .

Description of drawings

The invention is described by the following figures, in which:

Fig. 1 is a schematic diagram of the spinning area in the longitudinal direction of the spinning frame, taking the ring spinning frame as an example;

Figure 2 is a perspective view of a portion of the suction device;

Figure 3 is a view of the suction housing with part of the twisting device and adjacent nip rolls in the longitudinal direction of the spinning frame;

Fig. 4 is a schematic diagram of the twisting device in the longitudinal direction of the spinning frame;

Figure 4a is an assembled view of the parts of the twisting device during assembly;

Fig. 4b has the supporting seat of a part of the twisting device with different stoppers;

Fig. 5 is the modified embodiment of Fig. 4;

Fig. 6 is a schematic plan view of the ventilator channel;

Figure 7 is a view showing the pressure distribution along the channel;

Figure 8 is a different embodiment of the suction system.

Detailed ways

Design of Spinning Parts

As shown in Fig. 1, the material delivery device 7 of a common spinning frame comprises a can or roving tube. The roving 71 (drawn by oblique lines) is fed from the can to the drafting unit. In the case of bobbins, the roving leaves the circumference of the bobbin. The fiber web, ie the roving or fiber strip, enters the region of the drafting unit 1 via the deflection of the fiber web. The drafting unit includes several pairs of conveying rollers 11, and part of the turning rollers is equipped with a drum cover, and the best part of the turning rollers is equipped with a strip plate and a dividing plate. These elements are collectively referred to as spinning device 11 .

Between the first pair of delivery rollers 11a and the second pair of delivery rollers 11b, the roving 71 is only slightly drawn, but between the second pair of delivery rollers 11b and the next pair of deflection rollers 31, 33, the roving 71 is heavily drafted. draft, so the draft ratio may exceed 100 in total.

Between the nip roller 33 and the twisting element 31, the drawn roving is clamped and twisted in the subsequent twisting device 3. The width of the roving leaving the drafting device 1 decreases during twisting. Along the twisting zone 31', a yarn guide (preferably shroud-shaped) 39 escorts the roving on the surface of the twisting element 31. Finally, a braking roller 35 is installed in the twisting area. Said rollers press against the twisting element 31 and thus limit the formation of twists from the spinning device 5 upwards against the flow direction of the material. Inside the twisting element 31 there is a suction element 31 connected to the suction device 4 . The twisting element 31 is preferably a perforated rotating drum, while the suction element 37 in the perforated area comprises a suction opening.

Between the drafting unit 1 and the spinning device 5 there are yarn guides 55, 55' which, in the case of the ring spinning frame, limit the yarn of the yarn 73 towards the top in Fig. 1 balloon. In the lower area of the spinning machine, the yarn 73 is connected to the ring by the traveler 53, said ring is connected to the ring frame 51, because the spindle 59 rotates with the drive unit, thus, the yarn is wound on the yarn On the wire reel 75. The height of the yarn package depends on the movement of the ring frame drive unit 57 which moves the ring frame 51 in the vertical direction shown in FIG. 1 .

Suction elements in the spinning area

In FIGS. 2 and 3 the suction element is shown in diagrammatic detail. It comprises a housing 37.1 as a channel leading all the way to the suction device 4, which as a continuous extension in the spinning frame is usually called a suction system, with which the suction air is released. At the front of the housing 37.1 guide plates 44b, 44c are mounted on the tongue 44a. Using the tongues, the inserts 37.2 and 37.3 can be fixed. However, the housing 37.1 housing the guide plates 44b and 44c can also be designed in such a way that it has only one insert 37.2. In this case, it is not necessary to install the guide plate 44b. Inserts 37.2 and 37.3 are inserted in housing 37.1, because insert 37.2 as shown in Figure 2 is not on the installation position, it is lowered position by arrow A between guide plate 44b and 44c, and then parallel to the axis of guide plate 44c, to Reverse movement of the arrow.

The boss 49 on the side of the insert 37.2 facing the housing 37.1 prevents the insert 37.2 from being pushed as far as past the guide plate 42, no longer giving an indeterminate position of the guide plate 42, the outside of the boss 49 rests against the guide plate 42, so Boss 49 and guide plate 42 together ensure the relationship of insert 37.2 itself to housing 37.1, insert 37.3 is also installed by bringing insert 37.3 close to tongue 44a first in the direction of arrow A until it rests on said tongue. Accordingly, the insert moves to the right in the direction opposite to arrow b, through the gap between the guide plate 44b and the tongue, until a boss (not shown) abuts against the guide plate 44b. After inserting insert 37.2 and/or 37.3, the cover 37.4 that rotates around the axis A of shell 37.1 moves downwards according to the direction of arrow C, until the bottom edge (lower edge) of this cover is supported on the tongue 44a. In order to absorb air from the inserts 37.2 and/or 37.3, each cover is open on the side facing the inserts 37.2 and/or 37.3. The air that utilizes fan (not shown) to be introduced by suction device 4 passes through the suction slot 40 of plug-in 37.2 and/or the suction slot 41 of plug-in 37.3, first enters the inside of each plug-in according to the direction of arrow d, then according to arrow e, f The direction of flowing, enters in the cover 37.4 that is used as channel. The air flow into the insert 37.2 passes through the opening 45 on one side of the insert, through the cover and/or channel 37.4, and continues through the third opening 48 into the housing 37.1 in the direction of arrow g. When the cover 37.4 is closed, the first opening 45 on the insert 37.2 and the second opening 46 on the channel 37.4 are arranged in line. Also, if the cover 37.4 is closed, the fourth opening 48 on the housing 37.1 is in line with the third opening 47 on the rear side of the channel 37.4. Suction element 37 consists of housing 37.1 and insert 37.2 and, if desired, insert 37.3 and cover 37.4. Suction element can be packed into the machine as a whole, or installed as a single part. However, it is also possible to vary only the inserts 37.2 and/or 37.3, depending on the material being machined. According to the fiber material processed by the spinning frame, the slits 40 and/or 41 on the insert 37.2 and/or 37.3 can be designed into different shapes and different slits, and when the spinning frame produces another material, it can be selected. The most ideal shape of the slit. In the right half of Fig. 2, a part of a twisting element 31 is shown in dotted lines, said element being a cylindrical or non-cylindrical solid and/or bendable cylinder or a small strip or a strip of fabric. At least in the part of the twisting element 31, which is mounted above the suction seams 40, 41, the twisting element 31 has perforations for the passage of air into the suction seam and the passage of the roving 71 as shown in FIG. The twisting element 31 in the slit 41 area. Obviously, another corresponding design (not shown) of the twisting element 31 can also be provided in the installed condition of the housing 37.1 above the other insert 37.2. From Fig. 3 it can be seen that only a part of the twisting element 31 is aligned with the housing 37.1. If, as shown in Figure 1, the twisting element 31 is arranged concentrically with the roller 11c and is fixedly connected (non-rotating) to said roller, then the housing 37.1 is suitable to be mounted on the roller 11c, to be directly supported or supported by a spring 11d . The latter can ensure the free contact of the inserter 37.3 or 37.2 on each corresponding twisting element 31. If the twisting element 31 is a strip or a small fabric strip, the twisting element is not locked in the direction of rotation to the roller 11c, in which case the roller 11c has the function of supporting the housing 37.1. In the region of the insert 37.2 or 37.1, the braking roller 35 can be mounted on the twisting element 31. The roller acts as a drive for the twisting elements in the conveying direction of the roving 71 . The assembly of the housing 37.1 and the inserts 37.2 and 37.3 during operation of the spinning frame is accomplished by the twisting element 31 and/or the installation of the twisting element next to the housing 37.1. Thus when the twisting element moves relative to the housing 37.1, the twisting element moves relative to the inserts 37.2 and 37.3. Contrary to the inserts 37.2 and/or 37.3 shown in Figure 2, the inserts are arcuate in shape, with their inner and outer contours approaching each other, in an embodiment substantially concentric circles. If the twisting element 31 is flat in the region of the insert, one side of the insert 37.2 with the slit 40 must be flat so that the slit is located directly under the perforation of the twisting element.

In spinning frames with drafting unit, twisting device and spinning device for roving, several such devices are arranged one after the other in the spinning frame, and the spinning frame has twisting elements inside the twisting device, so the drawing The fixed suction elements of the suction device are assigned to the twisting elements through which the exhausted air enters the suction elements of the invention, which are dotted and/or floating in the support seat in relation to the The supporting elements are connected. The determined position of the suction element on the twist element is at least radially clear relative to the twist element and/or is determined by the axis which rotates the twist element. The bearing shoe is designed in such a way that tolerances between the support of the bearing shoe and the twisting element are compensated by the elasticity of the bearing shoe.

As shown in Figure 4, the basic parts of the twisting device are simplified, and said parts have been described in detail in Figure 2, and the suction element 37 described in Figure 2 with a housing 37.1, an insert 37.2, etc. is shown in Figure 4 The middle is only represented by the arched arc of the twisting element 31. According to the embodiment shown in Figure 4, the inside of the suction element 37 is located on the shaft 11c, and its outside rests against the twisting element 31, which is shown here as a perforated cylindrical drum, so that in The suction element is controlled between the rotating drum 31 and the shaft 11c, the shaft 11c is fixedly connected with said drum, therefore, the support pipe 402 is connected with the suction element 37 to discharge the suction air. Below the twisting element 31 there is another suction duct 408 which opens near the nip between the twisting element 31 and the braking roller 35 . The air both flows into and out of the suction element, part of it flows through the support tube 402, and the other part enters the suction tube 408, as shown by the thick arrow in the figure. The air flow then enters the channel 406 through the pipe, which is installed in the longitudinal direction of the frame and connected to a main fan. Between the support tube 402 and a further extending intermediate tube 404 there is a support seat 414 which is inserted into the slot 410' of the support 410. At the corresponding position of the support seat 414, a narrower portion 414' is included. The support seat 414 is preferably designed as a rotationally symmetrical rubber elastic part, especially in the left area of the narrower part 414' as shown in FIG. Corresponding to the support seat 414 , a second support seat 416 can also be installed at the place where the end of the intermediate tube 404 enters the channel 406 . A frame 410 somewhat like channel 406 is connected to frame 412 of the frame. In the lower part of the support 410, as shown in FIG. 4, there is a guide groove 410" leading to the suction pipe 408.

Referring to Figure 4a, at the right end of the support tube 402 is a head 402', which is used to mount the support tube 402 on the suction element 37, and the head 402' is put into the channel 414" of the support seat 414". The head 402' is slightly larger than the diameter of the support tube 402, and it is located at the terminal end of the support tube, after installation, into the groove 414" of the support seat 414, as mentioned in the layout description of Figure 4, in the best practice In the example, the housing 37.1 of the suction element 37 is located between two twisting elements 31. However, it is also possible for the suction element 37 and/or the housing 37 to be misaligned, ie to move in the vicinity of the axial individual rollers and/or twisting elements 31 . Shell 37.1 will transfer on the support tube 402 and be rigidly connected with it, at first will pack into support seat 414, under the situation of not having insert 37.2 and 37.3, shell 37 is connected on the spinning frame. For this reason the operator must only assemble the housing 37.1 and the support tube 402 into the bearing seat 414 . , the first axial stop 418 of the left bearing seat part 414' of the bearing seat 414 is placed in the second narrower part 414.2" of the bearing seat 414, if the head 402' of the support tube 402 is put into the channel 414 ", the stopper 418 prevents the flexible bearing element 414 from moving to the right again. Therefore the position shown in Figure 4 roughly provides the position of the suction element 37 and/or the position of the support tube 402 connected to the suction element, and the position of the head 402' in the bearing seat part 414', when taken as a When correctly centered with the twisting element 31 in this way, the suction insert 37.2 or 37.3 is introduced into the gap between the shaft 11c and the inner surface of the twisting element 31.

If, due to the accumulation of flotsam placed between the suction element 37 and the inside of the twisting element 31, the radial gap narrows, and if the friction generated between the suction element and the twisting element and/or the shaft 11c If it is too large, then the suction element 37 with the support tube 402 stretched thereon is turned by the twisting element 31 in the counterclockwise direction, which can be achieved at least by the flexible design of the left bearing part 414' of the bearing 414 . Therefore, as shown in FIG. 4, on the left side of the support base 414, a switch 424 can be closed, and in a circuit 428 between the switch, or generally speaking, the switch, the sensor 42 and the roving stop 424, the electromagnetic coil is triggered to make the clamp The holding head moves to the limiter of the material conveying device 71 under the action of the electric current. The feeding of material to the drafting unit, which is represented by the pair of rollers 11a, 11b, is thus prevented and thus no defective yarn or untwisted yarn is fed into production. Interruption of material supply may be indicated by a pass detection device and/or display 426 . If the pulling force on the suction element 37 is too great due to friction on the twisting element 31, the support tube 402 can be pulled out of the groove 414" of the bearing part 414', the suction element and/or The suction force on the surface of the twisting element 31 is no longer increased. In this case, on the outer circumference of the twisting element 31, the fibers of the material transport device 71 are no longer sufficiently guided, resulting in an interruption of the fiber flow, so that all The fiber flow described is removed by the suction pipe 408 and no longer enters the spinning device 5 shown in Figure 1. Therefore, without the switch 422 and/or the sheet stopper 424, the material flow to the spinning device can also be interrupted. , and no wrong twisted yarn can be fed into the product. The switch is designed as a limit switch or a non-contact type switch.

Referring to Fig. 4b, the second stop 420 is located on the support 410 next to the first stop 418 already described. It prevents the bearing blocks 414 from being pushed outward during the lateral movement of the support tube 402 . Measure the axial and radial distances between the stops 418 and 420 to the second narrower portion and/or measure the distance between the stops 418 and 420 relative to the bearing seat portion 414.2' in the vertical direction in the longitudinal direction of the elongated support tube 402 Axial and radial distances, in order to compensate for the tolerances allowed between the seat 410 and the position of the suction insert 37 in the twisting element 31, without prior consideration of the high friction between them, the support seat 414 and/or the left support seat 414' must be given clearance.

Adjustment of the suction area

In order to make the whole suction system in the best state, there are holes 430 and/or 431 on the suction insert 37.2 and/or the parts related to the suction insert and the suction pipe 408, so that it can be used in different suction according to requirements. Suction is used on the part. According to Fig. 5, holes 430 and/or 431 can pass through the flexible bearing element 414 and/or through the suction pipe, and holes 432 can also pass through the transition piece 416" from the chamber 416' into the channel 406. As from As can be seen in Figure 5, compared with Figure 4, the support tube 402 and the suction tube 408 do not directly enter the channel 406, but enter the chamber 416' connected to the channel 406. A limited number of suction tubes 408 and/or Or the support tube 402 can be introduced into the chamber 416', such as 12 such tubes each leading into the chamber 416'. The holes 430, 431 and 432 can be used separately or together. If only one hole 432 is inserted into the transition piece 416 "and/or use a special transition piece 416", it is easier to get the suction operation in each spinning zone. In this way, a certain zone of the spinning machine can be adjusted differently from other zones, in which the production Other yarns with different suction properties. It can be seen from Figure 4 that a pipe and/or hose 402 is connected between the suction element 37 and the channel 406. In this case, the support tube 402 is not designed as Air transmission part, but a pipe, therefore just as the support means of suction element 37.If use pipe or flexible pipe 402a, can save from support seat 414 to the intermediate pipe 404 of second support seat 416.The pipe and And/or the hose is designed to be flexible, so that the relative movement of the support tube 402 relative to the support seat 414 is not restricted.

Figure 6 schematically shows a portion of channel 406 leading into transition piece 416". As shown by the arrow in Figure 6, the purpose of this transition piece is to: delay the flow of airflow at the inlet of channel 406 while diverting the flow, thus maximizing Eddy currents are avoided in channel 406. Transition piece 416" is considered to be a frustoconical shell, somewhat elliptical in cross-section, inclined towards axis A. Referring to FIG. 6 , the axis A of the truncated cone turns from the straight arrow on the upper left to the curved arrow on the lower right. It forms an acute angle with respect to the main flow direction of the channel 406 and introduces airflow from top to bottom. Fig. 6 is a schematic plan view of a part related to Fig. 5 above.

The word "hole" associated with reference numerals 430, 431 and 432 is generally an air-conducting hollow portion having a certain inner diameter. The inner diameter of the holes therefore varies according to the location of the holes on the spinning frame.

It can be further seen from FIG. 6 that the end, ie the bottom, of the channel 406 is connected to the auxiliary air pressure source. A fan directs airflow through transition piece 416 ″ into channel 406 .

As shown in FIG. 6, a sensor 438 can be installed at the inlet of the passage 406 connected to the detection device 436, and the auxiliary air pressure in the passage 406 is controlled by the detection device 436. When the auxiliary air pressure is lower than 50 to 60 mm, it means that the blower fan 434 has failed or is not working properly, and then the sensor 438 transmits a signal through the detection device 436, and the whole spinning frame is stopped by the control device.

In addition to the width of the slit, the distance between the rollers 35 given in FIG. 5 and/or the twisting distance determined by the length of the suction slot 40 in the suction insert 37.2 acts so that the consumption of air and/or The travel of the auxiliary air pressure in passage 406 is to a desired degree.

FIG. 7 qualitatively shows a pressure map within channel 406 . The auxiliary pressure is at a maximum at the input of the blower 434 and continues to fall in a direction above the beginning of the channel, as can be derived from the arcuate branch of the curve of FIG. 7 . The minimum auxiliary pressure above the above point is equal to, for example: 100mmWs (water column), and at the intake end of the fan, the minimum auxiliary pressure can reach 200 to 250Ws (water column). Additionally, to the left of the arcuate branch of the curve in FIG. 7 is a line that qualitatively represents the pressure profile at the inlet end of transition piece 416". Different large holes in transition piece 416" and/or different transition pieces The different inner diameters of the transition pieces or the different passage openings allow strong different pressures to discontinuously enter the region of the chamber 416' and/or the tubes 402 and 408 along the passage 406, ie, in the direction of the gas flow. The pressure drop of the linear stroke in FIG. 7 , in other words, the variation of the stroke of the auxiliary pressure P across the length L of the passage 406 at the inlet end of the passage 406 , for example, changes from 80mm to 100mmWs at the inlet end of the fan 434 . In addition, in FIG. 7, the P1 pressure diagram of the channel 406 and the P2 pressure diagram of the spun yarn area are drawn, so the difference of P1 minus P2 is equivalent to the pressure diagram of the holes 430, 431 or 432.

Optimization of the suction system

When making the distribution of the suction system of spinning frames with twisting devices, in general, special attention must be paid to the air consumption. Because, in a spinning mill energy costs are a considerable part of the total operating costs. Because, in a spinning frame there are usually more than 1000 spinning zones to provide suction air, also on a woolen frame, as shown in the figure, at least two points, the air is sucked out, if there is only one channel If it is large enough to remove the suction air along the machine, the cross-section of the channel 406 must be designed to be larger than the cross-section of the general spinning frame, and several suction ducts can be selected to be arranged inside, on the machine, or on the inside of the machine. Underneath the machine, air conveyance underground in the spinning mill is therefore not ruled out. The following are important factors affecting the relevance of the preferred suction system.

The total throughput of the air volume is determined in particular by the cross-section of the channels and the throttling points of all tubes and channels.

At the transition point of the tubes 402 or 408, the air enters the channel 406, and/or the air enters the channel 406 in the transition piece 416", so this transition piece is designed as the described angled diffuser.

The guide plate 39 shown in Figure 1 is above the twisting element 31, so when there is a narrow gap between the guide plate 39 and the twisting element 31 designed as a shield shape, the air volume is affected on the one hand, and on the other hand The twisting quality of the fiber flow in this region is influenced, and the air volume and pressure drop in the channel are also substantially influenced by the size of the suction slot 40 in the suction element 37 . During the optimization of the suction system of the spinning frame with the suction channel 406, the channel is assigned to all operating positions, so that each operating position includes the drafting unit with the twisting device and the assigned designation of the drafting unit Suction inlet, and twisting device and suction inlet are connected with suction pipeline, can obtain suitable pressure drop in suction pipeline 406, so the auxiliary pressure near auxiliary pressure source 434 is 180mm to 220mmWs (water column), in suction The auxiliary pressure on the opposite side of the channel 406 and/or its port is only reduced to 60mm to 1000mmWs (water column).

If a spinning frame with twisting devices with different degrees of compression is to be obtained, a material 71 with strong compression or twisting is obtained in the spinning zone, which should be arranged near the auxiliary pressure source shown in Figure 6 , closer to the auxiliary pressure source than the longitudinal direction of the spinning frame, which is further away from the auxiliary pressure source, because of said factor, the auxiliary pressure drop in the suction channel must be compensated by a small amount by holes and/or similar devices .

Examples of suction systems

As shown in Figure 8, the problem of pressure drop in the suction passage 406 can be encountered in the provision of several fans or a central fan, several fans are shown. In the general design of the suction system, only a single blower 434 is connected to the channel 406 which, in contrast to FIG. 8 , extends over the entire length of the spinning frame 412 . In FIG. 8 , only one passage 406 is drawn between outline S2 and the right end of the machine and/or frame 412 . In this case, as shown in Fig. 8, another channel 406 can be designed which extends from the left end of the contour line S2 to the left end of the machine. The drawing of the suction device at the left end of the contour line S2 can also be understood as being replaced by only one channel 406, but also by two channels 406a and 406b. In this case, two auxiliary pressure sources and/or two blowers 434a and 434b are provided. Each yarn passes through the spinning area 5 and the twisting device 3, and many spinning areas 5 and twisting devices 3 are arranged one by one on the machine, and in the lower left and upper right of Fig. 8, along Frame 412 is indicated by a thick dotted line. Fig. 8 has drawn the bottom edge of spinning zone and/or twisting device or drafting unit 1, and support pipe 402 and/or suction pipe 408 are installed in the manner described in Fig. 5 and Fig. 4, and they directly enter channel 406 Alternatively enter chamber 416' which is connected to channel 406 at the left end of contour S2. As can be seen in Figure 8, several tubes 402, 408 each lead into chamber 416'.

If in the spinning machine, the air demand is not equal to but greater than the air demand of all spinning areas, it is suitable to make the air flow in the channel 406, 406a, 406b on the left side of the contour line S2 and the air flow in the channel 406b on the right side of the contour line S2 The airflows in channels 406 have different flow rates. For example, there is a central fan 434c, and a baffle plate 434e connected thereto is arranged at the inlet end of the fan 434c. If the baffle plate is inclined to the right as shown in FIG. The width of the left channel is narrow, so more air flows into the fan 34c from the left.

On the other hand, it is also possible to arrange like this, on the right side of the machine and/or on the right side of the contour line S2, a blower fan 434 dedicated to the right channel 406 is housed, in addition, on the left side of the machine and/or on the left side of the contour line S2, At least one fan 434a is provided. As mentioned, several blowers 434a, 434b may also be provided for air delivery to channels 406a and 406b, respectively. If several passages are arranged next to each other along one side of the machine, and the passages 406a and 406b are all on the left side of the contour line S2, it is preferable to introduce the airflow into the first passage 406a through the support pipe 402, and the suction The suction air from the tube 408' leads to another channel 406b. In order to influence the pressure of the pipe 406, it is preferable to install a baffle 434f at the inlet of the channel 406 on the right of the contour line S2. With the flaps described, the pressure in line 406 will be affected, for example if the flap 434f is open, the auxiliary pressure may drop. That is to say, if in the area to the right of the contour line S2, the effect of twisting is lower than that of the area to the left of the contour line S2. Details will be further described below.

The dotted lines at the lower left and upper right of Fig. 8 represent the spinning device 5 and the twisting device 3, and each yarn passes through the spinning device 5 and the twisting device 3, and many spinning devices 5 and the twisting device 3 along the Arranged on the spinning machine. The spinning device 5 and the twisting device 3 are connected to the channel 406 and/or 406a through the support pipe 402 and/or the suction pipe 408 .

In summary, several possibilities for fan layout in different suction systems are also given below.

- As shown in Figure 8, a single blower 434 is provided at the right end of the machine, so the channel 406 must extend the entire length of the machine. However, it is also possible to use two channels 06a and 406b extending the entire length of the machine and leading into the blower 434 .

- Arranging two blowers 434a, 434b in parallel, so that air flows from parallel channels 406a, 406b.

- arrange a fan 434c or two such fans at the contour line S2 between the two ends of the machine, one end for the suction air flow of the channel 406 and/or 406a and 406b to the left of the contour line S2, and the other end for the contour line S2 The right channel 406 draws in suction air.

Various twist areas

If several different yarns are to be produced on one spinning frame, the use of the arrangement of the suction system shown in Figure 8 is of particular advantage. The machine shown in Figure 8 is actually divided into four parts by the contour lines S2 and S1, so in the spinning area 5, on both sides of the machine longitudinal direction, many different materials or different conditions of the same machine are arranged and processed. kind of material. These different conditions can be given, for example, because not all twisting devices 3 operate in the same way, so for example partial twisting and/or compression takes place in one part of the machine or in several parts of the machine related to the completion of twisting. partly carried out. Since the twisting effect depends on the suction operation of the twisting device, different operating performances of the blowers 434a, 434b, 434c and 434 can result in different degrees of compression. On the other hand, with the same design or only a single fan 434c, it is also possible to influence the suction operation in the respective spinning zone 5 and/or twisting device 3 by operating the flaps 434e, 434f. Obviously, the suction operation of the individual twisting devices 3 per yarn stroke 73 is only affected by parts and/or segments of a single channel, for example only channel 406a, which is to the left of contour S2 and contour S1 extended in the area below. In order to produce different yarns or the same yarn with different characteristics, the drafting unit can also be driven/activated expediently in different ways. Only one drafting unit is shown on the right side of the contour line S2 in the upper part of FIG. 8 , while two drafting units are shown on the left side of the contour line S2 , and the two are respectively above and below the contour line S1 . Each drafting unit and/or each row of drafting units is driven by several delivery rollers 11a, 11b, 11c, it is therefore advantageously provided that each roller 11b, 11c is electrically driven 11e. The electric drive referenced 11e is meant to include a frequency converter, whereby one or several of these drives are controlled by a control unit 435 in such a way that the drafting ratio of the drafting unit can be varied. If a frequency converter is installed on the drive motor, the fan drive unit 434d can also be influenced by the control device 435. In this way, the suction operation on the whole machine or a part of the machine can be adapted to the spinning conditions, for example: in The section below the contour line S1 and to the left of the contour line S2. If there is only one channel, the suction nominal performance on each twisting device 3 can be changed by using holes 430, 431, 432 of different sizes, in each section of the machine, to the right of the contour line S2 and to the contour line On the upper and lower sides of S1, different spinning conditions are correspondingly arranged on the twisting device 3 and the spinning device 5 in order to produce different yarns. Therefore the following adjustments and/or technical features are applicable and/or actable in corresponding places.

- the amount of drafting on the drafting unit, influenced by the drive 11e;

- the drafting distance, influenced by the movement of the transport rollers 11a, b, c towards each other;

- the spinning device, such as the roll mantle, rings and partitions in the drafting unit, as well as the ring in the spinning device 5, the traveler 53, the shroud-shaped guide plate 39 and the suction insert 37, therefore in the suction insert 37.2 The length and width of the upper suction seam 40 vary according to the corresponding sections passed through, and the distance between the rollers of the jointer and/or the nip rollers 35 can be further changed according to the main length of the material 71 to be produced.

- the delivery device 71 of the various materials and/or is introduced into the roving and spinning zone of the drafting unit 1, and;

- Twisting elements 31 , the area and the number of holes in the twisting elements 31 are determined according to the respective sections required in the course of the material conveying device 71 .

Of course, the control device 435 of this spinning frame is designed in such a way that if the spinning frame is related to electronic or electrical equipment, different settings can be changed according to the spinning program input to the control device.

According to the connection of Fig. 8, the control device 435 can control the position as follows:

- a drive device 11e for the drafting unit 1;

- drive means 434d for fan 434a;

- drive 59 for the spinning zone 5 spindles;

- Drive means for the baffles 434e, 434f.

The need for different degrees of compression of the yarns can be handled by subsequent processes, such as in textile mills, since the yarn needs can be different depending on the material used for the warp or weft. For the actual application of different compression and/or twisting effects, as on all twisting devices 3 above the contour line S1, its auxiliary pressure is greater than that of other twisting devices below the contour line S1. As a result, yarns with different hairiness are produced on both sides of the contour line S1, the technical parameters of which are the same except hairiness.

Claims (32)

1. fine spining machine, it has body frame (412) and drafting unit (1), has suction tube (408), suction system, the twisting unit (3) of a rove (71) and a rove (71) spinning apparatus (5), wherein, several such devices face each other in fine spining machine and connect layout, and afterturn element (31) is housed in this twisting unit (3), having fixedly, an aspirator (4) of suction element (37) is loaded on the afterturn element (31), so that make discharge air enter this suction element (37) by this afterturn element (31), it is characterized in that: at the suction plug-in unit, one in suction plug-in unit connector and the suction tube is provided with some apertures, and because these apertures, suction shows that different suction position places is different, cause that different afterturn effects is arranged in described fine spining machine, aperture (430,431 and 432) be hollow bulb with internal diameter, be used for direct air, the internal diameter of this orifice part different position on fine spining machine is different.

2. according to the fine spining machine of claim 1, it is characterized in that: a stay pipe (402) is connected to described suction element (37), and with described stay pipe (402) and/or described suction tube (408) introduce passage (406) or with chamber (416 ') that passage (406) links to each other in, the trend of described passage (406) is along the longitudinal direction of described fine spining machine.

3. according to the fine spining machine of claim 2, it is characterized in that: an aperture (432) are arranged on the transition piece (416 "), and described transition piece (416 ") is from described chamber (416 ') and introduce in the passage (406).

4. according to the fine spining machine of claim 1, it is characterized in that: described aperture (430,431) can be arranged on the sinking support seat element (414).

5. according to the fine spining machine of claim 1, it is characterized in that: the stay pipe (402) that will aspirate plug-in unit is connected to described suction element (37), and in the chamber (416 ') that described stay pipe (402) and suction tube (408) are introduced with a passage (406) links to each other, the trend of described passage (406) is along the longitudinal direction of described fine spining machine, thereby limited suction tube (408) and/or stay pipe (402) are introduced in this chamber.

6. according to claim 1,2,3 or 4 fine spining machine is characterized in that: this aperture (430,431 and 432) can be selected or be provided with simultaneously.

7. according to the fine spining machine of claim 3, it is characterized in that: have only an aperture (432) to insert in the transition piece (416 ").

8. according to claim 1,2,3 or 4 fine spining machine is characterized in that: utilize aperture (430) to carry out different adjustment, make the suction performance degree that yarn produces in certain zone in fine spining machine be different from another suction performance degree that other yarn produces in another zone.

9. according to claim 2,3 or 4 fine spining machine, it is characterized in that: transition piece (416 ") is directed in the passage (406), and described transition piece (416 ") is used for postponing to change the air flow of admission passage (406) simultaneously, avoids in passage (406) obstruction excessive.

10. according to the fine spining machine of claim 3, it is characterized in that: transition piece (416 ") be a truncated cone shell, cross section is closely oval, and A is oblique for axle, and the axle A of this truncated cone and the main flow direction in the passage (406) are decided to be acute angle relation.

11. the fine spining machine according to claim 2 is characterized in that: the end at passage (406) is furnished with an auxiliary potential source.

12. the fine spining machine according to claim 2 is characterized in that: be furnished with a sensor (438) in passage (406) porch, this sensor links to each other with a checkout gear (436), by the aux. pressure situation in this detection arrangement monitors passage (406).

13. fine spining machine according to claim 13, it is characterized in that: aux. pressure drops to when being lower than the 50-60mm point, and suction ventilation blower (432) produces and blocks or fault, and sensor (438) sends signal, utilize checkout gear (436), can stop whole fine spining machine by control module (435).

14. fine spining machine according to claim 2, it is characterized in that: by the distance of the roller (35) on the afterturn element (31) and/or by pump orifice (40) length in the suction plug-in unit (37.2), or determine the afterturn distance by the pump orifice width, can change the air consumption in the passage (406) and aux. pressure being adjusted to desired level.

15. the fine spining machine according to claim 12 is characterized in that: be the 100mm water column apart from the minimum aux. pressure amount of the distance of taking out auxiliary pressure source, and be the 200-250mm water column at the value of suction ventilation blower (434) porch.

16. fine spining machine according to claim 2, it is characterized in that: be provided with the passage (406) or the several passage that are used to collect the discharge air, this passage has than the cross section big, between 0.07-0.14 square metre of the channel cross-section in the conventional fine spining machine.

17. the fine spining machine according to claim 2 is characterized in that:, can regulate the following parameter that influences for optimizing suction system:

Pump orifice (40) size in the-suction element (37);

-air is being guided from the transition point position of pipe (402 or 408) introduction channels (406) and/or at the air from transition piece (416 ") admission passage (406), thus this transition piece (416 ") is set to the apsacline disperser;

-be positioned at variable spaces between the upper guide plate (39) of afterturn element (31) and this afterturn element (31) for being made as 0.5-2mm, this guide plate (39) is made as guard shield shape parts, in this zone, affect air capacity on the one hand, affect the afterturn quality of fibre stream on the other hand.

18. the fine spining machine according to claim 2 is characterized in that: be furnished with several suction channels, both can be arranged among the frame, top, also can be arranged in the bottom of frame.

19. fine spining machine according to claim 11, it is characterized in that: for the suction system that has suction channel (406) is optimized, this optimization is at the All Jobs position, each job position comprises a drafting unit (1) that has a twisting unit (3) and distributes to a pump orifice (408) of this drafting unit, and, this twisting unit (3) is connected with suction channel (406) with this pump orifice, the pressure that can regulate appropriateness in this suction channel (406) descends, reach 180mm to 220mm water column height so that close on the aux. pressure of auxiliary potential source (434), and only drop to the 60-100mm water column at suction channel (406) another side and/or terminal aux. pressure.

20. fine spining machine according to claim 11, it is characterized in that: reach in various degree compactness in order to make spinning place, can carry out stronger compression or afterturn to material (71) in these spinning place, will these spinning place be arranged in this fine spining machine vertically in nearer auxiliary potential source (434) locate, if these spun yarn places can reduce the afterturn effect away from auxiliary potential source, the aux. pressure that is difficult to compensate well in this suction channel with orifice part descends.

21. fine spining machine according to claim 1 or 2, it is characterized in that: a single spun yarn function is produced several different yarns, by outline line (S2) with (S1) this fine spining machine is divided into several sections, a large amount of spun yarn places (5) is arranged in two vertical sides of this fine spining machine, in spun yarn place (5), at the each several part of independent allocation, can handle the same material under different materials or the different condition.

22. according to claim 1,2,3 or 4 fine spining machine is characterized in that: can given different condition not be meant all twisting units (3) operation in an identical manner, in one or several part, carry out part compression and/or afterturn, finished afterturn in other parts relatively.

23. the fine spining machine according to claim 2 is characterized in that: utilize the passage (40a, 406b) that aspirates ventilation blower (434a, 434b, 434c, 434) and link to each other to determine to have the compression of different manifestations feature in various degree with described ventilation blower.

24. fine spining machine according to claim 23, it is characterized in that:, can influence suction performance in each spun yarn place (5) and/or the twisting unit (3) by operation baffle plate (434e, 434f) because of suction ventilation blower or single suction ventilation blower (434c) with same design.

25. according to claim 1,2,3 or 4 fine spining machine is characterized in that:, can drive drafting unit by different way for the identical yarn of producing different yarns or having the different technologies characteristic value; Utilize several conveying rollers (11a, 11b, 11c) can drive first drafting unit or each row's driver element, distribute different controlled electric drives (11e) for each roller (11b, 11c).

26. fine spining machine according to claim 25, it is characterized in that: electric drive comprises a frequency converter, the mode of utilizing control device (435) to start one or several this driver element is that another drafting unit can change a traction rate in the drafting unit independently relatively.

27. fine spining machine according to claim 23, it is characterized in that: suction ventilation blower (434d) can be controlled by this control device (435), the words of in drive motors, being furnished with a frequency converter, utilize this mode, can in the whole fine spining machine or the suction in part of this fine spining machine performance be controlled to be and be suitable for spinning conditions.

28. the fine spining machine according to claim 1 is characterized in that: the orifice parts (430,431,432) of the different sizes of utilization can change the suction performance in the independent twisting unit (3).

29. fine spining machine according to claim 21, it is characterized in that: on outline line (S2) the right and another outline line (S1) and under in the each several part of this fine spining machine, can regulate different spinning conditions corresponding to the twisting unit that is arranged (3) with spun yarn device (5), so that produce different yarns, thereby carry out at least diacritically in the corresponding position and/or influence following adjusting and/or textile technology feature:

-hauling distance depends on moving of conveying roller (11a, b, c) towards each other;

-spinning apparatus, for example ring and the steel traveler (53) in dividing plate and the spinning apparatus (5) in roller lid, the drafting unit (1), protect caging member (39) and suction plug-in unit (37.2); Wherein aspirating the length of inhaling seam (40) in the plug-in unit (37.2) is different with width, and this depends on corresponding part and according to the band length of wanting rapidoprint (71) and the distance between between definite measuring roll and/or the niproll (35);

-be directed to the various material conveying devices (71) and/or the rove of drafting unit (1) and spinning place, and

-afterturn element (31) in appropriate section, according to the needs that material conveying device (71) is handled, makes surface and performance in the afterturn element be suitable for each appropriate section.

30. fine spining machine according to claim 1 or 2, it is characterized in that: control device in this fine spining machine (435) is set to such mode, if have the electricity or electronic installation, can according to the spinning change of program be different settings, this spinning program is loaded in the control device.

31. the fine spining machine according to claim 30 is characterized in that: arrive in the connection line of each assembly (434d) through control device (435), described control device (435) can be controlled following position:

The driver (11e) of-drafting unit (1);

The driver (434d) of-blower fan (434a);

The driver (59) of spindle in-spinning place (5);

The driver of-baffle plate (434e, 434f).

32. fine spining machine according to claim 22, it is characterized in that: because the aux. pressure that can act on the twisting unit (3) on outline line (S1) one side is higher than the aux. pressure that acts on the twisting unit on the another side (3), surpass outline line (S1), just can obtain different compressions and/or afterturn effect, subsequently, at place, this outline line (S1) both sides, can produce yarn, and can change the technical parameter that is keeping more or less with different filoplume effects.

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