JP2016113298A - Splicing passage unit equipped with inlet passage particularly configured for splicing air, splicer equipped with splicing passage unit, and textile machine equipped with splicer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a splicing passage unit which can be suitable for various shapes of fibers compared with a conventional one.SOLUTION: A splicing passage unit (60) for a splicer 10 which is equipped with one splicing passage 20 and at least one inlet passage 66o, 66u for splicing air and in which a portion 69o, 69u of the inlet passage, which is opened in the splicing passage 20, does not have a structure for blocking flow of splicing air, in which said portion 69o, 69u has a length l of at least 3.5 mm, and a diameter d of an opening 70o, 70u of the inlet passage 66o, 66u for the splicing passage 20 is 1.5 mm at most.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a splicing passage unit for a pneumatic splicer, a splicer having such a splicing passage unit, and a textile machine equipped with such a splicer.

  A splicer is a device for splicing two yarn ends, where in this case and below, the yarn always means a formation of individual fibers twisted together. In an aerodynamic splicer, piecing is performed by inserting the yarn to be spliced through the introduction slit into the splicing passage of the splicer and then into the splicing passage through at least one inlet opening opening therein. Compressed air is blown in and the compressed air mixes and twists the yarn fibers together, resulting in a splice that resembles other yarn structures in appearance and strength. In this case, the concept of compressed air or splicing air is used here as a representation of all suitable yarn splicing media, i.e. in addition to pure ambient air, in particular also includes humidified air.

  As a result, in addition to the problem of obtaining a spliced yarn splice portion that is satisfactory in quality, it is difficult to hold the yarn inside the splicing passage, particularly when splicing air is blown. For example, the yarn may be pushed out by compressed air from the introduction slit in the radial direction and from the cover surface or bottom surface of the splicing passage unit in the axial direction. Therefore, various means are used in the prior art to prevent this.

  For example, the introduction slit may be covered by a splicer cover after insertion of the yarn. The cover side and bottom side openings of the splicing passage can be narrowed by the immediately adjacent control plates, or the splicing air outflow can be appropriately affected by the control plates spaced from the cover and bottom surfaces. Can do. Such control plates often also take up the yarn guiding mechanism when the yarns enter into the splicing passages, in this case also called yarn guiding plates. In the vicinity of the cover surface and the bottom surface of the splicing passage, it is also possible to use a yarn holding lever alternatively or additionally, which is sometimes referred to as a yarn crimping lever or blocking fork, just outside the splicing passage. Limit the mobility of the thread in For example, the blowing of splicing air can also cause the yarn to rotate above and below the splicing passage, thus forming two yarn balloons, such yarn yarns splicing the yarn if it has a very large diameter Pull out from the passage. A blocking fork limits the diameter of such balloons.

  Patent Document 1 describes a splicing passage that is divided in the axial direction into two splicing chambers that are shifted from each other in the radial direction, in addition to the control plate and the yarn crimping lever described immediately above. Each splicing chamber has its own inlet passage for splicing air that opens tangentially to the splicing chamber, and the splicing air produces vortices directed in opposite directions within the splicing chamber.

  Patent Document 2 discloses that the yarn end defibrating nozzles located on the upper and lower sides of the splicing passage are used as holding elements for holding the yarn until the introduction of the splicing process, or even immediately after the start of the introduction. Yes. For this purpose, a yarn end untwisting nozzle, called a holding and defibrating tubule, is mounted in an appropriate geometrical arrangement in the immediate vicinity of the axial splicing passage outlet, and this yarn end untwisting The opening on the yarn side of the nozzle is formed in a hopper shape. Preferably, the suction air in the holding and defibrating tubule is shut off for the first time at the first blowing of splicing air or immediately after the blowing, so that the holding and defibrating tubule has a reliable holding function against the yarn until then. Add

  The prior art with such and other means certainly provides a large repertoire for forming a quality spliced splice, however each splice has a splice. In connection with the properties of the yarn being made, in particular the yarn type and yarn count, it requires special special means. Thus, in practice, a large number of differently configured splicing passage units or entire splicers need to be stocked and replaced together at the time of yarn replacement in the machine. This means a correspondingly high cost for economy, reserve supply and work technology.

German Patent Invention No. 3612229 German Patent Application Publication No. 10202781

  Therefore, the subject of this invention is providing the splicing channel | path unit which can be adapted to the form of a various thread | yarn more compared with a prior art.

This problem is solved by a splicing passage unit formed in three forms as described below, and a splicer having such a splicing passage unit and a textile machine:
1. A splicing passage unit for a splicer, comprising one splicing passage and at least one inlet passage for splicing air that opens into the splicing passage, wherein the inlet passage opens into the splicing passage In a splicing passage unit, where the portion does not have a structure for blocking the flow of splicing air,
Said part has a length l of at least 3.5 mm;
A splicing passage unit for a splicer, characterized in that the diameter d of the opening of the inlet passage to the splicing passage is at most 1.5 mm.
2. A splicing passage unit for a splicer, comprising one splicing passage and at least one inlet passage for splicing air that opens into the splicing passage, wherein the inlet passage opens into the splicing passage. In a splicing passage unit, where the portion does not have a structure for blocking the flow of splicing air,
A splicing passage unit for a splicer, wherein a ratio rld = 1 / d between the length l of the portion and the diameter d of the opening of the inlet passage to the splicing passage is larger than 2.3.
3. A splicing passage unit for a splicer comprising a splicing passage and at least one inlet passage for splicing air that opens into the splicing passage,
The inlet passage is configured to form a laminar flow directed into the splicing passage before the opening of the inlet passage to the splicing passage at the latest during its flow through the inlet passage. A splicing passage unit for a splicer.

  All these splicing passage units have specially configured inlet passages for the splicing air that are directed into the splicing passage where the splicing air is directed and for splicing there In order to produce optimum flow characteristics, especially when the yarn is blown out in the radial and axial directions. In this way, in many cases, the radial splicer cover, the axial control plate, the shut-off fork or the holding and defibrating tubule supplied with the holding flow can be dispensed with completely. However, also when using such means, the use of a splicing passage unit according to the invention often provides further improvements and widens the range of yarn types that can be processed without modification.

  In a preferred embodiment, the inlet passage opens into the splicing passage in a tangential direction immediately adjacent to the yarn introduction slit leading to the splicing passage. In this configuration, the tangential inflow when splicing air is blown creates a vortex along the walls of the splicing passage, which causes the yarn fibers to be spliced to be intimately mixed and twisted together. It is done. In particular, depending on the appropriate geometry of the yarn introduction slit and the position of the inlet passage relative to the opening of the inlet passage, the splicing air first strikes the yarn immediately after it is blown, and before the yarn is rotated and twisted together by vortex formation The yarn can be mixed first. In this way, a structure that is very similar to the rest of the yarn structure in terms of strength in the form of the initial mixing and in the subsequent twisting in the form of a structure, and thus a high quality splice. It is formed.

  Furthermore, the geometry of the yarn introduction slit and the tangential opening region and the position of each other can be configured such that the blown splicing air is directed in the yarn introduction direction. In this case, the vortex flow in the yarn introduction slit conveys the yarn in the radial direction into the splicing passage. This is because in this case there are virtually no influencing flow components directed radially from the thread introduction slit.

  More preferably, the splicing passage is divided into two splicing chambers in the axial direction, and the axes of the splicing passages are offset from each other in the radial direction. In such a configuration, both splicing chambers can be provided with unique inlet passages for the splicing air, thereby creating vortex flow in opposite directions in both splicing chambers. In this case, the radial displacement of the splicing chamber serves to block this flow to some extent. This is because this reduces the butt surface between the splicing chambers. Further, the narrowed portion generated at the abutting portion due to the displacement of the splicing chamber in the radial direction particularly prevents the axial movement of the yarn to be spliced, and thereby reduces the possibility that the yarn is pushed out in the axial direction by the splicing air. .

  However, in a very suitable configuration to obtain the latter effect more clearly, the butt edges of both splicing chambers are appropriately sharpened, i.e. the radius of curvature of the butt edges is selected to be less than 0.35 mm. Yes. The sharp edges not only directly brake the axial movement of the yarn by the friction applied to the yarn, but also create a resistance to the flow component in the axial direction, thus pushing the yarn out of the splicing passage in the axial direction. The force of the flow component at is reduced.

  Such a configuration thus provides another mechanism for preventing the yarn from being blown out of the splicing passage axially by the splicing air. Such effects are further enhanced when the butt edge material selection and surface structure thereby increase the butt edge roughness to prevent flow and / or axial movement of the yarn. Can do.

  Further resistance, which prevents the yarn from being pushed axially out of the splicing passage by the splicing air, can be obtained by the inclination of the splicing passage relative to the extending direction of the adjacent yarn. Usually, the winding unit of an automatic winder, which can use a splicer, for example, is installed in a vertical construction form, i.e. the yarn is wound upwards in a substantially vertical direction, for example from a feeding bobbin mounted on the lower side. Drive to take package. In such a case, it is preferable to provide the splicing passage with an inclination with respect to the vertical line, and in this case, a minimum inclination angle of 20 ° is particularly suitable.

  The splicing passage unit is preferably integrally formed. With this construction, not only a particularly compact member is obtained, but also the maximum possible construction for forming the inlet passage for splicing air is obtained. This is because this gives a relatively large component unit. In addition, since the splice air connection in the compressed air system is minimized, problems with sealing are avoided.

  Additional splicer covers and / or shut-off forks can additionally be used to further increase the yarn breed width that can be handled by a single splicer according to the invention. For this purpose, in a preferred embodiment, the splicer alternatively has a pivotable base receptacle to which a cover lever with a splicer cover or a shut-off fork can be attached, for example by screw connection or snap connection. Yes. Such an embodiment allows the use of such simple auxiliary members at a relatively low economic and work engineering cost, in which case the splicer itself must be removed from the textile machine in which it is used. Absent.

  In order to further increase the type width of the yarns that can be processed by a single splicer according to the invention, further use of known means based on DE 10202781 i.e. holding and defibration It is also possible to use a means of providing a small tube in the immediate vicinity of the axial opening of the splicing passage and maintaining the holding and defibrating tube function at least until the use of splicing air. For this purpose, it is necessary to configure the control device of the valve in the corresponding compressed air conduit so that the supply of compressed air to the holding and defibrating tubule is terminated at the earliest with the use of splicing air. Such a control device can be accommodated, for example, in a work unit computer of a winding unit in which a splicer is used, as is generally used today. However, central control by the central machine of the textile machine is also possible.

  Here, it is described that the supply of compressed air to the holding and defibrating tubule ends at the earliest with the use of splicing air. This means that the supply of compressed air to the holding and defibrating tubule ends and the splicing air It should not mean that the time between the start of and must not be greater than zero. What is clear here for the textile technology is that very short times, for example a few microseconds, are completely allowed. This is because the yarn and its individual fibers are also unable to carry out a very large movement in such a short time due to their internal stress. When this time will have a sufficient length is evaluated based on the dynamic properties of the spliced yarn and its fibers, in any case time in the millisecond range is eliminated. I have to.

  The illustrated embodiment and some variations will now be described in detail with reference to the drawings.

It is a side view which shows one working unit of the automatic traverse winder provided with the splicer which can use the splicing channel | path unit which concerns on this invention. It is a perspective view which shows the splicer shown in FIG. FIG. 2 shows the splicing passage unit according to the present invention in two different perspective views. FIG. 4 is a perspective view of the splicing passage unit according to the present invention shown in FIG. 3, taken along a plane passing through the splicing passage. FIG. 4 is a perspective view of the splicing passage unit according to the present invention shown in FIG. 3, which is a cross section taken along a plane passing obliquely above the lower inlet passage. FIG. 4 is a cross-sectional view showing a two-part splicing chamber of the splicing passage unit according to the present invention shown in FIG. 3. It is a figure which shows the three change aspects of a splicer provided with the splicing channel | path unit.

  The same symbols are attached to the same members in all drawings.

  FIG. 1 derived from DE 10224080 (and having the same number there) shows a side view of a working unit 2 of a textile machine 1, here an automatic traverse winder 1. The working unit 2 includes a splicer 10, and the splicing passage unit according to the present invention can be used in the splicer 10. Similarly, in FIG. 2 which is substantially derived from DE 10224080 (and has the same number there), this splicer (yarn splicing device) 10 is shown in perspective view.

  As is well known, such an automatic winding winder 1 has a number of working units 2 of the same type between its end frames (not shown), and in this embodiment, a winding unit 2. Yes. In these winding units 2, the spinning cup 9 is rewound onto the large volume traverse package 15.

  The winding unit 2 splics a so-called upper thread 31 coming from the traverse package 15 and a so-called lower thread 32 coming from the spinning cup 9, which is somewhat retracted from the normal yarn running path. Have This yarn splicing is necessary, for example, after feeding a new spinning cup 9, after yarn breakage, or after so-called controlled clearer cutting to remove yarn defects.

  The basic working mode of the automatic winding machine 1 is known, for example, from DE 10224080 and is not important to the invention described here. Accordingly, here, only the reference numerals shown in FIG. 1 are listed briefly: automatic traverse winder 1; winding unit 2; cup supply section 4, reversible drivable storage section 5 and winding unit 2. Replenishing device formed as a bobbin / winding tube transporting system 3 having a lateral transporting section 6 and a winding tube returning section 7; transport tray 8; spinning cup 9; spinning cup feed position AS; empty pipe 9 '; And a splicer 10 having a splicer cover 23 that is pivotally supported; a suction nozzle 12 that is rotatable about a rotation axis 16 and that can be supplied with negative pressure; and is rotatably held in a package frame 28 of the winding device 24 Twilled package 15 entrained by friction by a grooved drum 14 in contact with the surface thereof, and after its completion a service assembly A spiral winding package 15 that is handed over to a traverse package transporting device 21 that extends over the machine length by using a gripper tube 25 that can rotate around a rotation axis 26 and that can supply negative pressure; An upper thread 31 wound up on the package 15; a lower thread 32 coming from the spinning cup 9; a central control unit 49 connected to a winding unit computer 29 of each winding unit 2 via a machine bus 50.

  FIG. 2 is a perspective view showing the splicer 10 shown in FIG. 1, the suction nozzle 12 at the thread insertion position, and the gripper pipe 25 disposed at the comparable thread insertion position. The suction nozzle 12 just recalls the upper thread 31 from the traverse package 15 and inserts it into the splicing passage 20 of the splicing head 19, while the gripper tube 25 calls the lower thread 32 from the spinning cup 9. Similarly, it is inserted into the splicing passage 20. The upper thread 31 is further inserted into a clamp element 11 ′ of the upper thread clamp / cutting device 11 and a cutting element 17 ″ of the thread clamp / cutting device 17 disposed on the lower side. Correspondingly, the lower thread 32 is located in the clamping element 17 ′ of the lower thread clamping and cutting device 17 and in the cutting element 11 ″ of the upper thread clamping and cutting device 11.

  As shown in FIG. 2, the splicing head 19 is connected to the base body 22 through, for example, a screw coupling portion 27, and the base body 22 has a plurality of air connection portions. Inside, a holding and defibrating tubule 18 capable of supplying air in particular is provided. Furthermore, the feeder 30 of the splicer 10 is again shown in FIG. The feeder 30 is supported so as to be rotatable around the pivot 40 and is fixed by a separate driving device 42, for example, a step motor, and is movable in the rotational direction 40 'and again in the return direction. is there. The drive device 42 can be controlled by the winding unit computer 29 via a control line 50 '. Further, the drive device 42 may have a sensor such as an angle measurement sensor, and such a sensor feeds back the position of the drive device 42 to the winding unit calculator 29. However, this sensor is not shown here. However, it is also possible to control by the central control unit 49 instead of the winding unit calculator 29.

  Further formation of the splicing part is basically performed in a known manner. The upper clamping element 11 'clamps the upper thread 31, which is shortened to a predetermined length by the lower cutting element 17 ". Correspondingly, the lower clamping element 17 ′ clamps the lower thread 32, which is shortened to a predetermined length by the upper cutting device 11 ″. Both ends of the yarn are defibrated in the holding and defibrating tubule 18 by supplying compressed air and are prepared for splicing. Thereafter, the original spliced portion is formed by blowing the splicing air into the splicing passage 20. At this time, the feeder 30 works to move the thread ends of the upper thread 31 and the lower thread 32 as necessary.

  In FIG. 3, the splicing passage unit 60 according to the present invention is shown on the left side portion thereof in a perspective view that is seen in a line-of-sight direction from a slightly upper front. As a result, the yarn guide surface 61 leading to the yarn introduction slit 62 is almost visible, and the axial outlet 63o on the upper side of the splicing passage 20 can be well recognized by a slightly oblique viewing angle. In the right-hand part of FIG. 3, the same splicing passage unit 60 is again shown in a similar perspective view, but here the viewpoint is further up.

  The yarn guide surface 61 serves to guide the upper yarn 31 and the lower yarn 32 to the yarn introduction slit 62 when the splicing process is introduced. The splicing passage 20 includes an upper cylindrical chamber 20o and a lower cylindrical chamber 20u, and symmetrical axes or central axes of the cylindrical chambers 20o and 20u are shifted from each other in the radial direction. As a result, a butt surface is formed between the cylindrical chambers 20o and 20u, and the upper butt surface 20SFo of these butt surfaces can be seen well in the right portion of FIG. These abutting surfaces terminate at the abutting edge, and in the drawing, the edge 20SKo of the upper abutting surface 20SFo can be recognized among these abutting edges. Finally, it is possible to recognize the closing pin 64o of the upper (not visible here) inlet passage 66o (see FIGS. 4 and 5 for further details).

  In FIG. 4, the front side portion of the splicing passage unit 60 shown in FIG. 3 is cut out almost to the center of the splicing passage 20, and the rear side portion is shown to be transparent, whereby the internal structure of the splicing passage unit 60 is shown. Can see. FIG. 4 is also a perspective view in the same manner, but here is a view seen from a diagonally lower front angle.

  In addition to the components already known from FIG. 3, the lower axial outlet 63u of the splicing passage 20 can also be recognized, i.e. the outlet of the lower chamber 20u and the lower butting surface 20SFu of the splicing chamber and its edges. 20SKu can also be recognized. Further, the back side of the compressed air connection 65 on the back side and the upper inlet passage 66o can also be seen by the transparent illustration. Both splicing chambers 20o, 20u here have their own inlet passage 66o for splicing air or an inlet passage 66u (not visible here).

  FIG. 5 is a perspective view showing the inside of the splicing passage unit 60 according to the present invention shown in FIG. The line-of-sight direction in this perspective view is somewhat behind and from above. The height of the splicing passage unit 60 is cut substantially below its center. Further, the cutting plane is inclined downward and rearward on the left side of the drawing. And again, all components in front of the cutting plane are omitted and the remaining components are shown as transparent.

  The drawing shows a lower portion of the lower splicing chamber 20u with a lower axial outlet 63u, and further leads to the lower splicing chamber 20u and has a yarn introduction direction indicated by arrow 72. An introduction slit 62 is shown. A connection side portion 67u of the lower inlet passage 66u branches off from the compressed air connection portion 65 located on the rear side of the splicing passage unit 60. The connection side portion 67u is a relatively large hole that communicates with the front right lower end portion of the splicing passage unit 60, and this hole is closed outward by a lower closing pin 64u. When the splicing air is blown, the splicing air is diverted toward the lower splicing chamber 20u at the lower closing pin 64u and into the hole 68u that is also a part of the lower inlet passage 66u. The relatively large hole 68u moves to a narrow hole 69u toward the lower splicing chamber 20u, and this narrow hole 69u finally moves to the lower splicing chamber 20u at its opening 70u.

  The construction of the inlet passage 66u only in the two drilling directions of the portions 67u, 68u, 69u in this way allows a simple production. The flow state during splicing air injection is certainly not optimal due to the strong deflection in the lower closing pin 64u, however it is acceptable in practice if the hole diameter is selected appropriately. However, a flow path with as little vortex as possible in a particular configuration is important and, if desired, almost any configuration of the inlet passage by casting technology can be realized for the splicing passage unit, In this way, sealing problems that may occur in some cases can be completely avoided by the closing pins 64o, 64u.

  However, what is important for the present invention is only the overall configuration of the inlet passage 66u, in particular the portion 69u that opens into the splicing chamber 20u below it. Depending on the configuration of the invention, it is necessary to maintain a final minimum or maximum value for the length l and diameter d of the opening 70u to the lower splicing chamber 20u, or these values The ratio r ld = l / d must be above the minimum value, in which case this inlet passage portion 69u must be kept free from the structure that prevents the flow of splicing air in both cases. In this way, for example, undesirable vortex flow of splicing air that may still occur at the narrowing transition from the preceding inlet passage 68u to the opening 69u is prevented. As a result, an optimum flow state for the original splicing process is obtained in the lower splicing chamber 20u. However, it is not necessary in these configurations of the present invention to form a complete laminar flow in the opening-side inlet passage portion 69u.

  In an alternative configuration of the present invention, which similarly produces an optimal flow condition in the lower splicing chamber 20u, rather than specifying the specific dimensions of the opening inlet passage portion 69u, More flexibility is provided with respect to the passage guide and passage configuration, however, the designer will now allow the lower splicing chamber 20u before the opening 70u of the lower opening side passage portion 69u at the latest. Care must be taken to create a laminar flow directed at the surface. Such laminar flow, which is appropriately oriented, is also necessary for obtaining good quality splicing for the good mixing of the fibers of the upper thread 31 and lower thread 32 and subsequent Verdrillung. To help. Furthermore, flow stratification prevents energy loss due to vortex flow and helps for optimal energy utilization of the compressed air generator.

  In FIG. 5, the lower inlet passage portion 69u on the opening side enters the lower splicing chamber 20u so that the splicing air flows in a tangential direction in the circumferential direction of the lower splicing chamber 20u formed into a cylindrical shape. It is arranged against. Further, the entrance passage portion 69u is opened in the immediate vicinity of the yarn introduction slit 62, and the splicing air completely captures the fibers of the upper yarn 31 and the lower yarn 32 introduced in the yarn introduction direction 72, and introduces the fibers into the yarn. Oriented to extend into the vortex 71u and thus into the lower splicing chamber 20u at the extension in direction 72, at which time the fibers are intimately mixed and twisted.

  The splicing passage unit 60 is mainly machined from a single workpiece, that is, integrally formed. Only the outside of the holes for the inlet passages 66o, 66u is closed by separate closing pins 64o, 64u. In addition to the structural dimensions sufficient for the desired inlet passage configuration, this one-piece configuration always still has a compact configuration and good dimensional stability by minimizing the manufacturing error chain and high sealing performance of the compressed air guide Enable.

  In FIG. 6, the splicing passage 20 comprising two parts of the splicing passage unit 60 according to the present invention is shown in cross section in the main part on the left side, and this cross section shows the splicing passage axis 74 and the upper and lower sides. The side splicing chambers 20o, 20u include axes 76; 77. For clarity, the diameters of the upper and lower splicing chambers 20o, 20u are shown respectively. Furthermore, the abutting surfaces 20SFo and 20SFu and the edges 20SKo and 20SKu of the upper and lower splicing chambers 20o and 20u can also be recognized.

  The upper splicing chamber 20o and the lower splicing chamber 20u are shifted by a distance 78 in the radial direction, that is, the axes 76, 77 of the upper splicing chamber 20o and the lower splicing chamber 20u are spaced from each other by a distance 78. Is located. The axis 74 of the splicing passage 20, and thus the axes 76 and 77 of the upper and lower splicing chambers 20 o and 20 u are inclined with respect to the vertical line 73 by an angle 75. That is, it is considered that the splicing passage unit 60 is attached to the winding unit 2 of the automatic traverse winder 1 as a component of the splicer 10 so that the direction 73 forms a vertical line. The running paths of the upper thread 31 and the lower thread 32 extend substantially along the vertical line 73 above and below the splicer 10 in the winding unit 2, so that the upper thread 31 and the lower thread 32 inserted into the splicing chamber 20 are further extended. An angle 75 is formed with respect to the portion.

  This position of the splicing passage 20 tilted with respect to the other yarn running paths is caused by splicing air due to yarn friction at the upper and lower axial outlets 63o, 63u of the upper and lower splicing chambers 20o, 20u. Prevents extrusion in the axial direction of the yarn. This effect is particularly remarkable when the angle 75 is selected to be 20 ° or more.

  An additional reduction in the axial pushing action is caused by the sufficiently sharp shape of the butt edges 20SKo, 20SKu of the upper and lower splicing chambers 20o, 20u. This is shown in the detailed view 79 shown to the right of the main part in FIG. At this time, it is desirable that the curvature radius 80 of the upper butt edge 20SKo and the lower butt edge 20SKu is selected to be less than 0.35 mm.

  Finally, the splicing passage unit 60 according to the present invention can also be combined with other structural means known in the prior art to optimize the splicing process. For example, it is additionally possible to use splicer covers, control plates / thread guide plates and / or blocking forks.

  FIG. 7 shows three variations of such combinations. FIG. 7 shows one splicer 10 provided with the splicing passage unit 60 according to the present invention, and the thread introduction slit 62 leading to the splicing passage 20 of the splicing passage unit 60 is shown on the left and right. In the variation mode, it can be recognized well, whereas in the middle variation mode, the thread introduction slit 62 is closed by the splicer cover 23. All three variations further comprise a yarn guide plate 81 attached to the splicing passage unit 60. In the left and right variation modes, the splicing passage unit 60 further includes a yarn guide surface 61 that extends obliquely with respect to the yarn introduction slit 62 shown in FIG. 3 for better yarn guidance. In the middle variant with a cover by the splicer cover 23, on the other hand, a splicing passage unit 60 with a smooth front surface, shown in FIG. 2, suitable for such a cover is used.

  In order to increase the diversity of the splicer 10 according to the present invention, the splicer 10 according to the present invention has a base container 83 that can be turned around a rotation axis 82 in FIG. The base housing 83 is provided with a drive lever 83b (shown only on the left side in FIG. 7). The drive lever 83b is attached to the take-up unit 2 when the splicer 10 is attached, and in some cases a transmission device link. A drive device is connected through the mechanism. The base accommodating body 83 further includes an accommodating lever 83a, which can be left free (the left portion in FIG. 7) when it is not necessary, or alternatively, the cover lever 85 can be selectively provided. The splicer cover 23 (the middle part in FIG. 7) may be fixed through the cable, or the direct blocking fork 86 (the right part in FIG. 7) may be fixed using the screw coupling portion 84, respectively.

  In other words, the base accommodating portion 83 provides a simple possibility that the splicer 10 can be operated in various variations without much recombination effort or cost. At this time, in addition to the screw coupling portion 84, another fixing system that does not use a tool, such as a snap coupling portion, can be used, and for example, a pushing system can be selected instead of the receiving lever 83a. is there.

  Although the splicing passage unit according to the present invention has been described only in a particular variation above, the individual configurations are largely freely combinable with each other and can be used individually, and still other variations. It is obvious to those skilled in the art that this is possible. For example, it is not necessary to use a two-part splicing passage with two different inlet passages, the special configuration according to the invention of the opening side portion of the inlet passage is a single inlet opening for splicing air It can also be suitably used in a one-part splicing passage comprising

  Further, for the sake of completeness, the indefinite article does not exclude that a plurality of members indicated thereby may be provided. Similarly, the description of one particular member does not necessarily imply that the function cannot be distributed to a plurality of alternative members, or the function of a plurality of members described. It does not mean that it cannot be combined into a single member.

  DESCRIPTION OF SYMBOLS 1 Textile machine (automatic winding winder), 2 Work unit (winding unit), 3 Bobbin / winding tube transport system, 4 Cup supply section, 5 Storage section, 6 Horizontal transport section, 7 Winding pipe return section, 8 Transport tray , 9 spinning cup, 9 'hollow pipe, 10 splicer (yarn twisting device), 11 upper yarn clamp and cutting device, 11' clamp element, 11 "cutting element, 12 suction nozzle, 14 grooved drum, 15 twill Winding package, 16 rotation axis, 17 lower thread clamp and cutting device, 17 ′ clamp element, 17 ″ cutting element, 19 splicing head, 20 splicing passage, 20o upper splicing chamber, 20u lower splicing chamber, 20SFo Upper butt surface, 20 Fu lower butting surface, 20SKo, 20SKu butting edge, 21 traverse package conveying device, 22 base body, 23 splicer cover, 24 winding device, 25 gripper tube, 26 rotation axis, 27 screw coupling portion, 28 package Frame, 29 Winding unit computer, 30 Feeder, 31 Upper thread, 32 Lower thread, 40 Rotating shaft, 40 'Rotating direction, 42 Drive unit, 49 Central control unit, 50 Machine bus, 60 Splicing path unit, 61 Thread guide surface 62 thread introduction slit, 63o upper axial outlet, 63u lower axial outlet, 64o upper closing pin, 64u lower closing pin, 65 compressed air connection, 66o upper inlet passage, 66u lower inlet passage Entrance passage, 67u connection side part, 6 8u hole, 69u narrow hole, 70u opening, 72 arrow (thread introduction direction), 73 vertical line, 74 splicing passage axis, 75 angle, 76,77 axis, 78 spacing, 79 detailed view, 80 curvature radius, 81 thread guide Plate, 82 Rotating axis, 83 Base housing body, 83a Housing lever, 84 Screw coupling part, 85 Cover lever, 86 Shut-off fork, AS feeding position

Claims (10)

A splicing passage unit (60) for the splicer (10), one splicing passage (20), and at least one splicing air inlet passage (66o, 66u) opening to the splicing passage (20) A splicing passage unit in which the portion (69o, 69u) of the inlet passage (66o, 66u) that opens to the splicing passage (20) does not have a structure for blocking the flow of the splicing air (60)
Said part (69o, 69u) has a length l of at least 3.5 mm;
Splicing passage unit for splicer (10), characterized in that the diameter (d) of the opening (70o, 70u) of the inlet passage (66o, 66u) to the splicing passage (20) is at most 1.5 mm (60). A splicing passage unit (60) for the splicer (10), one splicing passage (20), and at least one splicing air inlet passage (66o, 66u) opening to the splicing passage (20) A splicing passage unit in which the portion (69o, 69u) of the inlet passage (66o, 66u) that opens to the splicing passage (20) does not have a structure for blocking the flow of the splicing air (60)
The ratio rld = 1 / d between the length l of the portion (69o, 69u) and the diameter d of the opening (70o, 70u) of the inlet passage (66o, 66u) to the splicing passage (20) is 2. Splicing passage unit (60) for splicer (10), characterized in that it is larger than 3. A splicing passage unit (60) for the splicer (10), one splicing passage (20), and at least one splicing air inlet passage (66o, 66u) opening to the splicing passage (20) In a splicing passage unit (60) comprising:
The inlet passages (66o, 66u) are open at the opening (70o) of the inlet passage (66o, 66u) to the splicing passage (20) at the latest during the flow of the splicing air through the inlet passage (66o, 66u). , 70u), a splicing passage unit (60) for the splicer (10), characterized in that it is configured to form a laminar flow directed into the splicing passage (20).   The inlet passages (66o, 66u) open to the splicing passage (20) in a tangential direction immediately adjacent to the yarn introduction slit (62) leading to the splicing passage (20). Splicing passage unit (60) according to any one of the preceding claims.   The splicing passageway (20) is divided in the axial direction thereof. As a result, two splicing chambers (20o, 20u) are formed, and the axes of the splicing chambers (20o, 20u) are shifted from each other. Splicing passage unit (60) according to any one of the preceding claims.   Splicing passage unit (60) according to claim 5, wherein the butt edges (20SKo, 20SKu) of both splicing chambers (20o, 20u) have a radius of curvature (80) of less than 0.35 mm.   Splicing passage unit (60) according to any one of claims 1 to 3, wherein the splicing passage (20) is inclined with respect to an adjacent yarn guide, in particular at least 20 °. ).   The splicing passage unit (60) according to any one of claims 1 to 3, wherein the splicing passage unit (60) is integrally formed.   Splicer (10) comprising a splicing passage unit (60) according to any one of claims 1 to 3, wherein the splicer (10) alternatively comprises a splicer cover (23). Splicer (10), characterized in that it has a pivotable base receptacle (83) to which a cover lever (85) or a blocking fork (86) can be attached.   A textile machine (1) comprising a working unit (2) having a splicer (10) comprising a splicing passage unit (60) according to any one of claims 1 to 3, wherein said splicer (10) Has a holding and defibrating tubule (18) in the immediate vicinity of the axial openings (63o, 63u) of the splicing passage (20), the textile machine (1) being in the center or the working unit The splicer control device (49, 29) formed as a component of (2) has a splicer control device (49, 29) that supplies compressed air to the holding and defibrating tubule (18). Textile machine (1), characterized in that it is configured to end with the use of splicing air at the earliest.