TWI464309B - Apparatus for the transport of fibre material between a drafting device and a loop forming machine and circular knitting machine provided with such an apparatus - Google Patents

Description

Apparatus for transferring fibrous material between a drafting device and a loop forming machine, and a circular knitting machine provided with the same

The present invention relates to a device as indicated in the preamble of claim 1 and to a circular knitting machine equipped with the device.

Such a device is known to be particularly associated with a so-called spinning machine, such as a circular knitting machine (World Patent No. PCT WO 2004/079 068 A2, German Patent No. DE 10 2006 006 502 A1), The vast majority of untwisted fiber materials operate, replacing the normal yarn. The fibrous material for knitting is directly converted into a temporary yarn after being exposed by a drafting frame with the aid of a spinning or conveying device having a so-called twisting member, which is maintained during the entire transport process Temporary twisting of fibrous materials. The transfer of the temporary yarn is preferably carried out in a transfer tube connected to the twisting member. For substantially longer desired transmission paths, the plurality of transmission units respectively formed by a twisting member and a transfer tube are continuously connected so that the drafting frames can be disposed away from the loop Form the machine at a relatively large distance. For the purpose of achieving uniform transmission of the fibers, it is typically left with a gap between the two continuous transfer units of this type which has the effect of dissipating the compressed gas stream required to produce the twist. Thus, on the one hand, despite its low strength relative to normal yarns, it is possible to transport the fibrous material throughout the length of the spread of the drafting frame to a loop forming machine, particularly a circular knitting machine. Because it is achieved by the tool, the fiber material of a temporary yarn is formed to be full. There is sufficient strength requirement on the transmission path and there is no danger of separating or tearing it. In another aspect, the twist provided by the fibrous material in the temporary yarn is again reduced to zero at a short spread from the end of the outlet of the transfer device to the associated system of the loop forming machine ( The false twisting principle is such that the fibrous material processed into the loop does not include a twisted yarn, but essentially comprises untwisted rayon disposed parallel to each other. Therefore, a knit fabric having extreme softness is obtained as a final product.

A disadvantage of the described transmission is the fact that dirt particles, thread ends, linters, and foreign fibers and other foreign objects that are also loosely attached to and entrained by the fibrous material can result in the knitted fabric. The defects in the middle and the contamination of the components forming the loops. Unlike normal spinning, no winder or the like is present, whereby impurities and other defects in the fibrous material can be identified and eliminated as much as possible by finely cutting the temporary yarn and subsequently kneading.

The device of the initially described version has been proposed (German Patent No. DE 10 2007 018 369) each having a gas supply member in the gap between the continuous transfer units, which has abutting in the gaps. The outlets and inlet openings of the transfer units of each other form an essentially closed system and, in addition to the removal of air, in particular have the effect of cleaning and reducing the defly of the fibrous material. It is thus achieved that the fiber flow captures and removes foreign particles from the interstitial region. However, the actual testing of this system has revealed that essentially only such light particles are removed from the fiber flow, whereas heavier particles, in particular so-called thin shell portions, remain in the fiber flow and thus ultimately include Have the knitting Fiber material in the fabric. Moreover, the disadvantage of this type of cleaning is that the entire transmission span of the drafting frame to the loop forming machine not only forms a closed system, but also forms a stiff and particularly inelastic system that is connected to An additional collection line can interfere with the operation of the loop forming machine.

In view of this, the technical problem of the present invention is to construct the device as originally described so that it can be handled more easily, can be more easily designed to suit the needs of the individual case, and can clean the fiber even more efficiently. flow.

This problem is solved in accordance with the present invention in which an inhalation device is disposed in the region of the open gap forming the air removal opening.

If it is operated in accordance with an open system, for example, it is disposed below the gap formed between the two transport units, and thus additionally uses the natural gravity of any existing dirt particles or the like, which surprisingly establishes the inhalation The device results in substantially more efficient cleaning of the fiber flow or temporary yarn. In particular, it may be possible to carry out the suction with this small low pressure in an advantageous manner, so that the transmission of the fibrous material in the transport unit is thus not attenuated, as may be used for air supply operated by blowing air. The case of the device. Moreover, the result is advantageously that the lighter particles are removed as previously by aspirating the fiber flow, and for example and the same, when the heavier particles, such as the shell particles, are simultaneously expelled through the open gap. And then, for example, due to gravity. The fiber flow through the inhalation device has no disturbing components, so it is surprisingly farther than when using a closed system Plus more effective. Finally, it is also advantageous for the inhalation device to be able to abut against an open gap, i.e. a closed system for guiding air, which is advantageous for accessing the various components.

Further advantageous features of the invention are revealed in such sub-items.

Figure 1 shows, in a partial section elevational view, a loop forming machine in the form of a circular knitting machine 1 and a syringe 2 in which a normal knitting needle 3 is displaceably mounted and A knit position is moved with the aid of a cam member, not shown, into a receiving position adapted to receive the fibrous material 4, which is subsequently referred to as a knitting system. A circular knitting machine 1 such as a right/left circular knitting machine can be placed on the floor of a workplace or a knitting room indicated by the reference number 5. An operator can operate the knitting machine 1 from the workplace floor 5. Further, a plurality of can-shaped containers 6 are placed on the work floor 5, and a sliver 7 including fibers is placed in the can-shaped container.

The sliver 7 is fed to a drafting frame 9 via a conveyor belt 8 or the like, which is accessible to the operator by a work platform 10 disposed above the work floor 5 . This drafting frame 9 is assigned to each of a number of knitting systems, only one of which is shown in Figure 1, which has, for example, three pairs of drafting rolls 11 in a manner known per se. In addition, the auxiliary warp yarn 12 unwound from a supply spool 14 can be supplied to each knitting system if necessary. It can be selectively supplied directly to the auxiliary via a pair of output rollers 11a of the drafting frame 9 with the aid of a warp guide or as shown in FIG. The warp yarn 12 is applied to the knitting system.

A web, not shown, from the drafting frame 9 essentially comprises untwisted primary fibers disposed parallel to one another, as more precisely apparent in Figure 2, the fibrous web is substantially marked with the The help of the transmission device with reference number 15 is supplied to a dispatched knitting system. The transport device 15 comprises at least one twisting member 16 and a spinning or transport tube 17 (Fig. 2) connected thereto, in a particular embodiment according to Fig. 1, based on the circular knitting machine 1 away from the drafting machine At a considerable distance from the frame 9, three transfer units each having a twisting member 16a, 16b, 16c and a transfer tube 17a, 17b, 17c are continuously connected. The first twisting member 16a of the fiber material 4 in the conveying direction is directly disposed behind the pair of output rollers of the drafting frame 9 or the conveying guide 18, and the last conveying pipe 17c in the conveying direction is close to The hooks 19 (Fig. 2) of the needles 3 terminate, and the needles extend into the fiber receiving position in the associated knitting system. Behind the knitting needles 3, for example, the suction element 20 connected to a central suction device 21 can be provided.

According to Fig. 2, a transport device 15 constituting a spinning device, or each transport unit including a twisting member 16 and a transfer tube 17, has a function for first converting a web from the draft frame 9 into a solid The role of the temporary yarn 22 of the crucible. For this purpose, the twisting member 16 is formed by, for example, an essentially hollow cylindrical body 23 that bears in itself, such as the original portion of the transfer tube 17, and the transfer tube 17 It terminates flush with a front end side 24. At least one air passage 25, preferably a plurality of air passages 25, extend from the end side 24, the air passages The central axes of the transfer tubes 17 are all diagonally arranged. The air passage 25 extends through the wall surfaces of the body 23 and the transfer tube 17, and terminates in an inner wall surface of the transfer tube 17. During operation, the compressed or blown air is supplied to the end of the air passage 25 immediately adjacent to the outside of the body 23 by means of a mechanism not shown, so that the twisting member 16 guides the conveyance of the pair of output rollers 11a. The fibrous material emerging from the disk 18 is drawn into the transfer tube and is also guided further through the transfer tube 17 in the direction of the associated knitting system. Based on the diagonal arrangement of the air passages 25, in addition, in the transfer tube 17, the fiber material from the output roller 11a is not only sucked but also woven into the temporary yarn 22 to generate air turbulence. 26, in which a large amount of rotation of the fibrous material is imparted, and at the same time the fibrous material is compressed. The temporary yarn 22 essentially maintains the twist until the end of the transfer tube 17, with which the twists are then released again until the entry of the fibrous material 4 enters the needle 3, i.e., is reduced to zero. (false effect). Therefore, a pressed, but almost untwisted, fibrous material 4 enters the knitting needles 3. According to Fig. 1, if the three transfer units 7 including the twisting member and the transfer tubes 16a/17a to 16c/17c are continuously connected, the same effect is obtained. According to Figure 1, these transport units can also be placed at a predetermined angle relative to each other, as a result of which it is possible to transport the refined fibrous material from the drafting frame 9 over a relatively long spread without It is damaged.

Between the two continuous transfer units, the compressed air flow required to generate turbulent flow is externally discharged through the air removal opening, which is received at the exit end 28 of a preceding transfer unit (e.g., 16a, 17a). And a subsequent one A gap 27 (Fig. 1) between the inlet ends 29 of the transfer unit (e.g., 16b, 17b) is formed.

The circular knitting machine of the type described is known, for example, from the patent documents PCT WO 2004/079 068 A2 and the German Patent No. DE 10 2006 006 502 A1, the same as the subject matter of the present disclosure. Avoid duplication by referring to them.

Similar to Fig. 1, Fig. 3 shows a drafting frame 9, which, in contrast to Fig. 1, has two adjacent conveying lines for the fibrous material, and thus has two adjacent conveying units 16a, 17a or 16b, 17b or 16c, 17c. Further, only the lower rollers 11, 11a of the drafting frame 9 are shown in order to simplify the description. Finally, FIG. 3 respectively shows a warp guide 30 which is disposed at the end of the respective last transfer tube 17c, and the supplied fiber material 4 is supplied to the needles 3 by the guide (Fig. 2 ).

According to the invention and according to Fig. 3, at least one inhalation device 31a, 31b is respectively provided in at least one air removal opening or a region forming a gap of the opening, preferably in the region of all such gaps 27a, 27b, etc. in. The inhalation device preferably comprises a suction tube which is connected at one end, and particularly advantageously from the bottom, up to the associated gap 27a, 27b, and at the other end, to a not shown Inhalation or low pressure source. Preferably, the suction power of the suction source is selected such that a low pressure of 20 mbar to 50 mbar, for example, below ambient pressure, is set directly at the associated gap 27a, 27b. As a result, the effective elimination of the fiber flow or the temporary yarn 22 with impurities in the fiber flow is achieved. Furthermore, it is fully clear that consideration is given to the The blown air generated by the twisting member (e.g., 16a) and the suction power of the twisting member (e.g., 16b) immediately adjacent to the associated gaps 27a, 27b abut in the regions on the gaps 27a, 27b. The low pressure should be adjusted such that an advantageous cleaning effect is achieved on the one hand, and on the other hand, the transmission of the temporary yarn 22 is not passed when passing through the gaps 27a, 27b and the remainder of the transmission spread. damage.

The inhalation devices 31a, 31b or the suction tube can be located at least in the region of the suction opening perpendicular to a transport direction v designated by the transport tubes 17a to 17c, as shown in Figures 3 and 4, as shown in the figure. 4 is indicated by the central axis 32b of the inhalation device 31b. However, it may also be convenient to arrange the inhalation devices diagonally with respect to the transport direction v . This is indicated in Figure 4, wherein the inhalation device 31a can also be selected to have positions 31a1 and 31a2 of the axes 32a1, 32a2 shown in phantom. If an outlet end portion 28a of the transmission unit 16a, 17a abutting against the associated gap 27a is beveled and provided with a pair of anterior or end faces 33a and having an outlet opening, a pair corresponding to the axis 32a1 The angular position is, for example, sensible, the outlet opening being directed to the inhalation device 31a and having an axis that extends coaxially relative to the axis 32a1. However, the bevel of the outlet end 28a is not achieved, wherein the transfer tube 17a is bent over the associated end. Conversely, for the axis of the continuous tube to be continuously aligned, a straight tube is preferably cut diagonally at its ends to assemble the end face 33a (Fig. 4).

Due to the bevel, the free opening is achieved at the outlet end of the individual transfer tube 17, and thus the space available for the suction is increased, as a result of which the length of the gap 27 measured in the transport direction v can be The case was reduced.

The angle at which the end face 33a is inclined with respect to the axis of the transfer tube 17a may be different, as shown in Fig. 4 in comparison with a diagonal front face or end face 33b at the outlet end of the transfer tube 17b.

Thus, Figure 4 shows, in total, a specific embodiment having an end face (e.g., 33a in Figure 4) that is directed downwardly in combination with the inhalation device 31, the inhalation device being attached thereto by the bottom, for example Position 31a2. In this case, the slack entrained particles are particularly easily separated from the fiber flow or temporary yarn 22 by gravity.

Further possible embodiments of the configuration of the transfer tubes 17 at their outlet ends are evident in Figures 5-8. A more detailed description in this regard appears to be unnecessary.

Further advantageous embodiments are obtained in which the diagonal end faces 33a are arranged horizontally to the sides and axes of the suction devices 31, as shown in Fig. 4. As a result, unwanted slack in the fibrous material in the region of the gaps 27a, 27b can be widely avoided. Finally, the diagonally extending outlet ends give the advantage that they specify a preferred direction for excess air to be removed and thus automatically direct the air away from the subsequent inlet opening.

Furthermore, it has proven convenient to select the lengths x1, x2 (Fig. 4) of the gaps 27a, 27b relative to the desired cleaning effect, which is measured in the transport direction v to be neither too large nor too large. Not too small. A dimension of 0 < x ≦ 2di is considered to be particularly advantageous, where di means the inner diameter of the transfer tubes 17a, 17b before the individual gaps 27a, 27b. The dimension x from the outermost edge of the preceding transfer tube (e.g., 17a) up to the beginning of the inlet opening 29 of the subsequent transfer tube (e.g., 17b) (Fig. 1) is separately measured, as shown in Fig. 4. The inlet end of the subsequent transfer tube can thereby be defined by itself, as indicated in Figure 1, or also by an inlet opening of a twisting member (e.g., 16b) that is coupled to the associated transfer tube. This depends on the individual structure and, for example, depending on whether the twisting member is placed in front of the inlet end of the transfer tube or through the entire length of the transfer tube. Therefore, the length x collectively indicates the minimum distance between the two transmission units formed by a twisting member 16 and a transfer tube 17, respectively.

Furthermore, the use of the size of 0<x≦2di has the advantage that after the yarn breakage of the temporary yarn 22 or a transfer unit 16, 17 is used for idling for other reasons, it is no problem to start spinning again, and The formed yarns 22 are automatically threaded into the inlet openings of the respective subsequent transfer units.

As shown in particular in Figures 1, 3 and 4, the transfer tubes 17a, 17b and 17c preferably all have a central axis extending in a straight line. Furthermore, Figure 1 shows a variant in which at least one transfer tube 17c is disposed at an angle relative to the other transfer tubes 17a, 17b, however, all of the tube axes are aligned. Furthermore, in the particular embodiment according to Fig. 3, all three transfer tubes 17a, 17b and 17c are arranged coaxially with respect to one another. For purposes of the present invention, Figure 4 shows a particularly preferred embodiment having a substantially unique feature.

This particular feature is based on the fact that, for their own sake, the transfer tubes 17a to 17c actually have a continuously constant inner diameter, however these The direction of the knitting machine 1 gradually becomes smaller by the drafting frame 9. Specifically, the transfer tube 17a has the maximum inner diameter, the transfer tube 17b has a medium inner diameter, and the minimum transfer tube 17c has the minimum inner diameter. Therefore, the advantage is achieved that the transfer line formed by the transfer tubes 17a, 17b and 17c initially has a relatively large inner diameter and has a relatively small inner diameter at the end. This large initial diameter assists in the undisturbed transmission of the fiber flow from the drafting frame 9, which assists the undisturbed insertion of the fiber flow 4 into the needle 3. In this case, the dimensions of the gaps 27a, 27b between the continuous transfer units 16, 17 are conveniently designed to be so large that the amount of air present by the preceding transfer unit having a larger inner diameter is only as much They are transferred to the subsequent transfer units as they can be taken based on their smaller inner diameter.

It is particularly advantageous if, in the direction of transmission v , a transition region of a preceding first transmission unit (for example 16a, 17a) to a subsequent second transmission unit (for example 16b, 17b) is selected as A transition region that is greater than this second transmission unit (e.g., 16b, 17b) to another subsequent third transmission unit (e.g., 16c, 17c). In this case, the temporary yarn 22 forms a relatively large balloon-shaped circle in the first transfer tube 17a which assists in the good separation of the entrained particles in the subsequent first gap 27a. As a result, the largest portion of the impurities has been removed in the region of this gap 27a. Therefore, the subsequent transfer tube, in particular the last transfer tube 17c in the transport direction v , respectively, obtains a correspondingly reduced inner diameter, as a result of which the formation of the balloon-shaped circle is smaller and narrower. The guiding is achieved, which is advantageous for the cleaning of the fibrous material into the needles.

A further advantageous embodiment (Fig. 4) provides for the fact that all of the transport tubes 17a, 17b and 17c are formed in a straight line and are arranged such that the axes extend parallel to each other but to the axis of the continuous transport tubes A bias is provided which extends transversely with respect to the transport direction v . As shown in Fig. 4, a misalignment or spacing A1 is present between the axes of the transfer tubes 17a and 17b, and a misalignment A2 is present between the axes of the transfer tubes 17b and 17c. In this embodiment, it is convenient to have A1 > A2 since the inner diameters of the transfer tubes 17a, 17b, 17c become constantly smaller in the direction of the knitting machine 1. An advantage of the offset A is the fact that the geometrical difference between the exit of the drafting frame and the entrance opening of the warp guide 30 can be compensated in a simple manner without the need for This purpose bends one of the transfer tubes 17. According to this individual case, the size of the offset should be chosen, and the normal inner diameter of the transfer tube having, for example, 1.5 mm to 4 mm should be smaller or at most half of the inner diameter of the individual subsequent transfer tube. Big. The direction of the offset A may be such that a subsequent transmission tube is biased on the side or toward the top or bottom relative to a preceding tube to the offset A, which is also referred to as generally common to the gaps 27a, 27b. The air condition in the particular selection of the individual location.

Figure 9 shows another preferred embodiment of the present invention, which is now considered to be the best. Referring to Figure 4, only two transfer units are shown, each having a twist member 35a, 35b and a connection thereto. The transfer tubes 36a, 36b, although there may be three or more transfer units. The parts 35a, 36a here form a preceding transfer unit, and the parts 35b, 36b forms a subsequent transmission unit. Between the outlet end 37 of the preceding transfer unit 35a, 36a and the inlet end 38 of the subsequent transfer unit 35b, 36b, an open gap 39 is formed which is intended to form an air removal opening. In the region of this gap 39, an inhalation device 40 is provided. Referring to Figure 4, the inhalation device 40 has a suction chamber 42 coupled to a suction tube 41 by a first end wall 42a and suitably parallel to a second end wall opposite the first end wall 42b is sealed, the end walls being disposed substantially perpendicular to the direction of transport of the fibrous material and spaced apart from one another. The transfer tube 36a of the preceding transfer unit protrudes through the passage of the first end wall 42a and extends to the free end portion of the outlet end portion 37 up to the gap 39, and the second end wall 42b is disposed at this. The end wall 42b is provided with an outlet opening 43 that faces the inlet end 38a of the subsequent transfer unit, and the inner cross section of the outlet opening is larger than the outer side of the transfer tube 36a of the preceding transfer unit. Cross section.

As shown in FIG. 9, the free end portion of the transfer tube 36a can protrude through the outlet opening 43 in such a manner that the outermost edge thereof protrudes slightly beyond the inlet opening 37 and protrudes into the gap 39. The outermost edge is similar to FIG. 4 in establishing the length x of the gap 39 starting with the inlet opening 38, as best shown in FIG. As a result of these measures, it is surprising that the air vortexing with the relaxed fiber is visualized by the transfer tube 36a and collides with the subsequent twisting member 35b or transfer tube 36b, and is thrown back into the edge of the exit opening 43. And an annular circumferential gap formed between the transfer tubes 36a, and then discharged through the suction tube 41 along with possible, particularly light, fluff, impurities and the like. At the same time, heavier particles are The exit passes through the open gap 39 and is removed by the flow of fibers into the subsequent twisting member 35b. Thus, effective cleaning is achieved as in the other embodiments described.

If the transfer tube 36a is disposed in a first end wall 42b that is sealed with the aid of an O-ring 44, the cleaning effect is particularly good, and thus almost identical to the edge of the outlet opening 43 and the transfer tube 36a The suction effect of the suction pipe 41 becomes effective outside the zone.

In order for the suction chamber 42 to be produced and opened and cleaned only when necessary, the second end wall 42b is suitably assembled into a cover member that is sealed and separably connected to the suction chamber 42. The other O-ring 45 may suitably have a sealing function. At the same time, with the help of the O-rings 44, 45, the suction chamber 42 can be formed in addition to the area between the suction pipe 41 and the end wall 42b and the transfer pipe 36a. A fully enclosed outer casing that is positioned at a spacing toward the inlet end 38 of the subsequent transfer unit 35b, 36b.

A corresponding suction chamber 42 can be provided in a transition zone between further, unillustrated transmission units.

Again, the transport units that are apparent in Figure 9 can be made similar to those made in accordance with Figures 1 through 8.

The invention is not limited to the specific embodiments described, which can be modified in many respects. For example, the angles recited in the drawings are to be understood as merely exemplary. The end faces are inclined at the exit end of the transport unit at this angle, and the examples can be deviated according to expediency measures. For the angle between continuous transmission units (such as 16b, 17b and 16c, 17c in Figure 1) The same is true of degrees. Moreover, the transfer tubes 17 and 36 can have a different circular internal contour than those assumed by the whisper. If the contours are out of the circular shape, the average inner diameter of a transfer tube is suitably used as the dimension di. Furthermore, it may be expedient to use a transfer tube whose inner diameter is gradually reduced by the inlet openings in the direction of the outlet openings, for example tapered. Furthermore, it is possible to apply twisting members that are different from those described, in particular mechanically twisted members. Furthermore, a transfer tube can be used, the inner jacket being provided with at least one helical groove to thereby improve the rotation of the temporary yarn in the transfer tube, the pitch of the groove needs to be selected, for example by A function of the twist specified by the twisted member. Furthermore, the described transfer device can also be formed on a loop forming machine, unlike the circular knitting machine described. Finally, it should be understood that different features may also be applied in combinations other than those described and illustrated.

1‧‧‧Circle knitting machine

2‧‧‧Syringe

3‧‧‧ knitting needles

4‧‧‧Fiber material

5‧‧‧floor

6‧‧‧ cans

7‧‧‧ yarn

8‧‧‧Conveyor belt

9‧‧‧Drawing rack

10‧‧‧Working platform

11‧‧‧Drawing roller

11a‧‧‧ output roller

12‧‧‧Auxiliary warp yarn

14‧‧‧ spool

15‧‧‧Transportation device

16‧‧‧ Heating components

16a‧‧‧ Heating components

16b‧‧‧ Heating components

16c‧‧‧ Heating components

17‧‧‧Transmission tube

17a‧‧‧Transmission tube

17b‧‧‧Transmission tube

17c‧‧‧Transmission tube

18‧‧‧Guide

19‧‧‧ Hook

20‧‧‧Inhalation components

21‧‧‧Center inhalation device

22‧‧‧Temporary yarn

23‧‧‧Cylindrical body

24‧‧‧ front side

25‧‧‧Air passage

26‧‧‧Air turbulence

27‧‧‧ gap

27a‧‧‧ gap

27b‧‧‧ gap

28‧‧‧Export end

28a‧‧‧Export end

29‧‧‧ Entrance end

30‧‧‧ warp guide

31‧‧‧Inhalation device

31a‧‧‧Inhalation device

31a1‧‧‧ position

31a2‧‧‧Location

31b‧‧‧Inhalation device

32a‧‧‧Center axis

32a1‧‧‧ axis

32a2‧‧‧ axis

32b‧‧‧Center axis

33a‧‧‧ end face

33b‧‧‧ end face

35a‧‧‧ Heating components

35b‧‧‧ heating components

36a‧‧‧Transmission tube

36b‧‧‧Transmission tube

37‧‧‧Export end

38‧‧‧ Entrance end

38a‧‧‧ entrance end

39‧‧‧ gap

40‧‧‧Inhalation device

41‧‧‧Inhalation tube

42‧‧‧Inhalation room

42a‧‧‧End wall

42b‧‧‧End wall

43‧‧‧Export opening

44‧‧‧O-ring

45‧‧‧O-ring

A‧‧‧ bias

A1‧‧‧ bias

A2‧‧‧ bias

The invention will be described in more detail in the detailed description of the drawings. 1 shows schematically a device for transporting fibrous material between a drafting frame and a loop forming machine; FIG. 2 is a schematic longitudinal section through a transport unit of the device according to FIG. 3 is formed by a twisting member and a transfer tube; FIG. 3 is a perspective view of the apparatus according to the first embodiment of the present invention according to FIG. 1; FIG. 4 is a detail of the apparatus according to FIG. Figures 5 to 8 are various transmission units which are constructed in accordance with the present invention for use with the apparatus of Figures 3 and 4; and Figure 9 is a longitudinal cross-sectional view of the apparatus according to Figure 1 in accordance with a second embodiment of the present invention.

16a‧‧‧ Heating components

16b‧‧‧ Heating components

16c‧‧‧ Heating components

17a‧‧‧Transmission tube

17b‧‧‧Transmission tube

17c‧‧‧Transmission tube

27a‧‧‧ gap

27b‧‧‧ gap

28a‧‧‧Export end

31a‧‧‧Inhalation device

31a1‧‧‧ position

31a2‧‧‧Location

31b‧‧‧Inhalation device

32a‧‧‧Center axis

32a1‧‧‧ axis

32a2‧‧‧ axis

32b‧‧‧Center axis

33a‧‧‧ end face

33b‧‧‧ end face

A1‧‧‧ bias

A2‧‧‧ bias

Claims (14)

An apparatus for transporting fibrous material between a drafting frame (9) and a loop forming machine (1), the loop forming machine comprising at least two transporting units, the transporting units being continuously disposed in a transport direction ( v ), and having an inlet end (29, 37) and an outlet end (28, 38), respectively, which are respectively provided by a twisting member (16a, 16b, 16c, 35a, 35b) And a transfer tube (17a, 17b, 17c, 36a, 36b) connected thereto, an outlet end (28, 37) of a preceding transfer unit and an inlet end of a subsequent transfer unit (29) And 38) are provided with an open gap (27a, 27b, 39) intended to form an air removal opening, characterized in that in the region of the gap (27a, 27b, 39), a The suction device (31a, 31b, 40) opened toward the gap, wherein the transfer tubes (17a, 17b, 17c, 36a, 36b) observed in the transport direction ( v ) have a gradually smaller inner diameter. An apparatus for transporting fibrous material between a drafting frame (9) and a loop forming machine (1), as in claim 1, wherein the gap (27, 27b, 39) has a direction in the transport direction ( The minimum length x measured in v ), the minimum length x achieving the inequality equation 0<x 2di, di is the inner diameter of the outlet end (28, 37) of the preceding transfer unit. An apparatus for transporting fibrous material between a drafting frame (9) and a loop forming machine (1), as in claim 1 or 2, wherein the outlet end of at least one of the transport units (16a, 17a) 28a) is provided with an outlet opening extending diagonally relative to its axis. An apparatus for transporting fibrous material between a drafting frame (9) and a loop forming machine (1) as claimed in claim 1 or 2, wherein the transfer tubes (17a, 17b, 17c, 36a, 36b) ) having an axis extending parallel to each other. An apparatus for transporting fibrous material between a drafting frame (9) and a loop forming machine (1), as in the fourth aspect of the patent application, wherein the axes of the two continuous transfer tubes (17a, 17b, 17c) are set There is a predetermined offset (A1, A2) which extends transversely with respect to the transport direction ( v ). An apparatus for transporting fibrous material between a drafting frame (9) and a loop forming machine (1), as in claim 5, wherein the offset (A1, A2) is at most equal to the individual subsequent transmission Half the inner diameter of the tube. An apparatus for transporting fibrous material between a drafting frame (9) and a loop forming machine (1) as claimed in claim 1 or 2, wherein the inhalation device comprises a suction pipe (31a, 31b, 40) . An apparatus for transporting fibrous material between a drafting frame (9) and a loop forming machine (1), as in claim 7, wherein the suction pipe (31a) has a pair of the transport direction ( v ) The axis extending angularly (32a1, 32a2). An apparatus for transporting fibrous material between a drafting frame (9) and a loop forming machine (1), as in claim 7, wherein the suction pipe (31a, 31b) comprises a guide to the gap (27a) , 27b) The angled exit opening. For example, the scope of claim 1 or 2 is used in the drafting frame. (9) Apparatus for transferring fibrous material between the loop forming machine (1), wherein the axes of the continuous transfer tubes (17b, 17c) form an angle with each other. An apparatus for transporting fibrous material between a drafting frame (9) and a loop forming machine (1) as claimed in claim 1 or 2, wherein the inhaling device (40) has a connection to the suction pipe ( 41) a suction chamber (42) having a first end wall (42a) and a second end wall (42b) facing the first end wall, the transfer tube (36a) of the preceding transfer unit Projecting through the passage of the first end wall (42a) and extending upwardly to the second end wall (42b), in the region of the gap (39), the second end wall has a seating orientation for the subsequent transmission An outlet opening (43) of the inlet end (38) of the unit, and an internal cross section having an outer cross section of the transfer tube (36a) at this location greater than the preceding transfer unit. An apparatus for transporting fibrous material between a drafting frame (9) and a loop forming machine (1), as in claim 11, wherein the transfer tube (36a) of the preceding transfer unit is sealingly disposed In the first end wall (42a). An apparatus for transporting fibrous material between a drafting frame (9) and a loop forming machine (1), wherein the second end wall (42b) is configured as a cover member, The cover is attached to the suction chamber (42) in a sealed and detachable manner. A circular knitting machine characterized in that the circular knitting machine is provided with at least one apparatus as in one of claims 1 to 13.