JP2006298647A - Winding part of textile machinery for manufacturing twill winding bobbin - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve a winding part of textile machinery for manufacturing a twill winding bobbin provided with a reeling-out auxiliary device having a member lowering down to a predetermined position on a winding pipe of a spinning cop and a yarn guide device positioned on an upper side of the winding pipe of the spinning cop to guarantee careful yarn guide even at high winding speed and deliver a yarn received by the spinning cop to a gripper pipe securely in a manner unrelated to thickness of the yarn and a yarn material. <P>SOLUTION: An adapter 40 for connecting the gripper pipe 25 is arranged on an end part side of the yarn guide device 36 in the direction F of yarn running. The gripper pipe 25 loaded with negative pressure is connected with the yarn guide device 36 while the yarn released from the spinning cop 9 is taken back without causing leakage. Negative pressure generated in the gripper pipe 25 is guided into a region at a tip of the spinning cop 9 positioned at a reeling-out position 10 through the yarn guide device 36. The adapter is formed in such a way that its constituent part plunges into a scope of a normal yarn path. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a winding unit of a textile machine for manufacturing a traverse bobbin described in a superordinate conceptual part of claim 1.

  In the winder, the yarn is delivered to the spinning section of the textile machine of this type and a device for drawing the yarn from the spinning cup, and the gripper pipe positioned at the take-up position and capable of negative pressure load. It is conventionally known to provide a device for this purpose.

  This type of spinning section is described, for example, in German Patent Publication Nos. 196175525 and 19617469. The known spinning sections each have one yarn end receiving device in the region of the feeding position, and this yarn end receiving device can be lowered onto the spinning cup and is connected to the suction cap by means of a swivel pipe Is possible. The suction cap is displaced laterally next to the regular yarn path and has a connection opening for coupling a gripper tube capable of suction air loading. The suction cap further has a slit therethrough for drawing the yarn from the suction cap, i.e. for transferring the yarn into the region of the normal yarn path.

  In this known device, the yarn end prepared in the region of the spinning tube winding tube tip is blown toward the suction cap by the compressed air supplied via the yarn end receiving device, and the suction cap Is taken up by a gripper tube which is negatively loaded at. In other words, in this known apparatus, the opening of the gripper pipe is formed by a slit formed in the suction cap and by maintaining a predetermined distance between the gripper pipe and the suction cap during connection of the gripper pipe. The negative pressure formed on the winding does not act up to the winding tube tip of the spinning cup. Particularly in the case of a heavy yarn, the yarn delivery operation by such a blow air flow (blast air flow) often has a problem at the time of yarn delivery.

  Furthermore, German Offenlegungsschrift 4,406,076 describes a winding section of a textile machine for producing a traverse bobbin having a plurality of feeding assist devices. That is, a first tubular member that can be lowered onto the spinning cup is disposed in each spinning section. The first tubular member is guided along the second tube so as to be adjustable in height, and the second tube is fastened to another tubular component via fastening means. . This other tubular component itself is placed stationary on the guide plate of the spinning section. The first tubular member is formed in the shape of a cone in the region of its lower edge, and this cone is within the region of the so-called cup cone of the spinning cup by the associated drive device during the rewinding process. Is precisely lowered onto the spinning cup.

  An injection device is provided in the second tube to deliver the yarn end of the spinning cup to be rewound to the gripper tube (positioned at a distance above the device in the take-up position). .

  That is, the second pipe has an annular passage connected to the compressed air source in a narrow area, and a plurality of passages aligned in the yarn traveling direction branch from the annular passage. . The first tubular member is lowered onto the spinning cup and injected into the second pipe in order to deliver the yarn end previously held in the spinning cup or the spinning cup winding pipe to the gripper pipe of the spinning section. A flow is created. That is, after the first tubular member is lowered onto the spinning cup, an injection flow is generated in the second tube, and this injection flow is then generated in the region of the opening of the gripper tube that is negatively loaded. Further supplied.

Also in this known device, the yarn end is placed by the flow of blowing air in the region of the gripper tube arranged at a distance from the opening of the second tubular member arranged on the guide plate during the yarn take-up. It has proven inconvenient to carry. In other words, it is not always guaranteed that this known device reliably delivers particularly heavy yarn to the gripper tube.
German Federal Republic of Patent Publication No. 19617525 German Patent Publication No. 19617469 German Patent Publication No. 4406076

  The object of the present invention is to improve the device described at the outset, ensuring on the one hand a careful yarn guide even at high winding speeds, on the other hand, at any time, irrespective of yarn thickness and yarn material. It is to provide such a thing that the yarn received by the spinning cup can be reliably delivered to the gripper tube.

  According to the present invention that solves this problem, an adapter for connecting the gripper pipe is arranged on the end side of the yarn guide device in the yarn traveling direction, and this adapter is a yarn unraveled from the spinning cup. Ensures that the negatively loaded gripper tube is connected to the thread guide device without leakage, so that the negative pressure generated in the gripper tube is fed out through the thread guide device. The adapter is guided up to the region of the cup tip of the spinning cup positioned at the position, and the adapter is formed so that the component part of the adapter enters the range of the normal yarn path.

  Advantageous embodiments of the invention are described in the dependent claims.

  The device according to the invention ensures that the negatively loaded gripper tube, which is positioned in the yarn delivery position by the arrangement of the adapter on the end side of the yarn guide device and by a special configuration of the adapter, does not leak sufficiently. The thread guide device can be securely connected. That is, the negative pressure formed at the opening of the gripper pipe reaches the region at the tip of the winding pipe of the spinning cup positioned at the feeding position. In this manner, for example, the yarn unwound from the winding tube end of the spinning cup in a pneumatic manner can be aligned sufficiently straight and sent through the entire apparatus, and can be reliably delivered to the gripper tube. The embodiment of the present invention of the adapter ensures that the yarn contacts the adapter during the winding drive, particularly by a cover wall configured so that the stationary component is located outside the normal yarn path. In addition to avoiding damage to the run-guided yarn, which is avoided, damage to the adapter is also avoided.

  As described in claim 2, the stationary adapter has a tubular airflow guide section and a partially open control casing, the control casing pivoting the gripper tube. Sometimes it can be associated with the gripper tube and the gripper tube flap. In other words, the control casing forms a closed structural unit together with the connected gripper pipe or gripper pipe flap, and this structural unit ensures that the negative pressure supplied to the gripper pipe is also connected in the yarn guide device. Guaranteed to work.

  According to an advantageous embodiment as claimed in claim 3, a control contour is arranged in the region of the control casing, the control contour opening the gripper tube flap and the opening of the gripper tube partially open. Rotate to the position where it can be swallowed. The control contour is arranged directly on the control casing or, as claimed in claim 4, the control contour is located in the region of the control casing, for example directly below the control casing. It may be a constituent part of a member. By forcibly guiding the gripper tube flap, a flow ratio that can be repeated repeatedly within the adapter is obtained, which very effectively affects the reliability of the yarn delivery process.

  According to claim 5, the control casing of the adapter has a closed rear wall, a side wall close to the winding part that matches the shape of the gripper pipe, and a winding that matches the shape of the gripper pipe flap facing this side wall. And a side wall far from the take-up portion.

  That is, as long as the inside of the control casing negatively loaded via the gripper tube is sealed against the atmosphere, so that the control casing of the adapter is completely closed, the side wall of the control casing has been swung in The gripper tube is supplemented by a gripper tube or by a gripper tube flap, respectively.

  According to an advantageous embodiment, the control casing has a cover wall with a sealing edge arranged outside the yarn path. The gripper tube flap is brought into contact with the sealing edge during the thread take-up so that the control casing is sealed upwards during the connection of the gripper tube (Claim 6). In this case, by disposing the seal edge outside the regular yarn path, it is possible to reliably avoid the yarn traveling during the winding operation from coming into contact with the seal edge.

  Details of the present invention will be described below with reference to illustrated embodiments.

  FIG. 1 schematically shows a side view of a textile machine for manufacturing a traverse bobbin, in the illustrated embodiment a so-called automatic traverse machine. The automatic traversing machine 1 of this type has a plurality of working units 2 of the same type between two end frames (not shown). A spinning cup 9 having a relatively small amount of yarn material, which is manufactured by a ring spinning machine (not shown), is wound around these working sections 2 on a large volume traverse bobbin 11. This is well known and not described in detail.

  Next, the completed traverse bobbin 11 is handed over to the traverse bobbin transport device 21 installed over the machine length by a service device (for example, a traverse bobbin exchanging machine) that automatically operates and arranged on the side of the machine To a transported bobbin loading station (not shown) or the like.

  Such an automatic traversing machine 1 has a replenishing device configured as a bobbin and winding tube conveying system 3 as shown in FIG. One bobbin magazine suitable for each is advantageously arranged, so-called round magazines.

  The spinning cup 9 or the empty pipe 34 fixed in the vertical alignment direction on the conveying plate 8 circulates in the bobbin and winding tube conveying system 3. Of the bobbin and winding tube transfer system 3, FIG. 1 shows a cup supply section 4, a storage section 5 that can be driven in reverse, a lateral transfer section 6 that leads to a working section (winding section) 2, and a winding tube. Only the return guide section 7 is shown. As shown in the figure, in this case, the supplied spinning cup 9 is first positioned in the feeding section 10 located in the winding section 2 in the region of the lateral transport section 6 and is rewound.

  For this purpose, each working unit 2 has different yarn processing and yarn manipulating devices (shown only schematically since they are well known), and this yarn processing and yarn manipulating device comprises a spinning cup 9. In addition to ensuring that the large volume traverse bobbin 11 is rewound, the yarn is monitored during the rewinding process to ensure that detected yarn defects are handled.

  One such known device is a winding device 24, which is a bobbin frame 18 supported movably around a pivot shaft 19, a bobbin driving device 26 and a thread. And a traverse device 28. In the embodiment shown in FIG. 1, the winding bobbin 11 is, for example, the outer peripheral surface of the winding bobbin 11 contacts a driving drum 26 that can be loaded by an independent motor type during the winding process. Entrained via frictional connection (friction binding).

  In other words, the drive drum 26 is driven through a drive device that can control the number of rotations and can be reversed (not shown), for example.

  The yarn is traversed by the yarn traversing device 28 when it is rewound onto the traverse bobbin 11. The yarn traversing device 28 has a yarn guide finger 29 in the illustrated embodiment. Such a yarn traversing device is known and is described in detail, for example, in DE-A 1 858 548.

  As mentioned at the beginning, such a work point 2 is generally divided into a yarn splicing device 13 that works pneumatically in an advantageous manner, and a suction pipe 12 that can be loaded with negative pressure, respectively. It has a gripper tube 25 that can be loaded with negative pressure. In this case, the suction pipe 12 and the gripper pipe 25 are connected to a negative pressure traverse 32 inherent to the machine, and the negative pressure traverse 32 itself is connected to a negative pressure source 33.

  Such a working unit 2 further includes a lower thread sensor 22, a yarn tensioning device 14, a yarn clearer 15 including a yarn cutting device 17, a yarn tension sensor 20, and a paraffin coating device 16. Further, the working unit (winding unit) 2 includes a yarn feeding auxiliary device 23 for processing the lower yarn prepared in the spinning cup 9 into the gripper tube 25 loaded with a negative pressure and delivering it pneumatically. Yes.

  Details of the feeding auxiliary device 23 will be described in detail below with reference to FIGS.

  As shown in a perspective view in FIG. 2, the feeding auxiliary device 23 arranged in the area of each winding unit 2 is mainly composed of a member 27 supported so as to be slidable in the vertical direction, and a yarn guide device. 36 and an adapter 40. In other words, the member 27 can be adjusted in the vertical direction R to a predetermined value via the driving device 30, and the member 27 can be moved downward according to the feeding movement of the spinning cup 9 during the winding process. . In this case, in an advantageous manner, the lower edge 50 of the member 27 is always positioned approximately at the height of the cup cone 51 of the spinning cup 9. During this vertical movement, the member 27 is guided along the guide addition 36 of the fully stationary yarn guide device 36. The member 27 corresponds to a dust removal device 31, which surrounds the cup cone 51 of the spinning cup 9 during the winding process and is, for example, negative pressure via a telescopically movable tube 35. A negative pressure traverse (suction traverse) 32 to be loaded is connected. A pneumatic yarn end unwinding device (not shown) is further arranged in the dust removing device 31. The yarn end unraveling device is arranged on the yarn end portion prepared on the spinning cup 9 first. As usual, it is solved from the spinning cup 9.

  As shown in FIG. 2, the yarn guide device 36 is advantageously constructed from a plurality of parts. That is, the yarn guide device 36 includes an upper tube 37 fixed to the adapter 40 that is fixedly disposed, and a lower tube that is slidably disposed in relation to the upper tube 37 and that can be adjusted in height. It consists of 38. In the assembled state, the lower tube 38 is always positioned on the pay-out bobbin 10 with a guide addition 39 (having an advantageous form of a thread introduction area configured conically) in the lower tube 38. The spinning cup 9 is fixed to the upper pipe 7 at a height position arranged just above the winding tube tip.

  A stationary adapter 40 (to which the thread guide device 36 is fixed as described above) is connected to a tubular air flow guide section 41, in particular as shown in FIG. And the control casing 42 opened to the outside. A control slider guide 44 is disposed on the control member 48 below the control casing 42, and this control slider guide 44 is used when the gripper tube 25 enters and swivels into the control casing 42. Make sure that is open to the designated level.

  The rear wall 45 of the control casing 42 is configured in an advantageous manner as a closed wall section, whereas the side walls 46, 47 are concavely curved, ie the contour shape of the gripper tube 25 or the gripper tube flap 43. Has a notch that fits.

  As shown in FIG. 4, the gripper tube 25 with the control casing 42, which has been swung in and positioned at the yarn delivery position, has a functional unit, which is the gripper tube 25. Is connected to the adapter 40 and thus to the yarn guide device 36 without leakage.

Equipment features:
The cup supply section 4 and the storage section 5 of the conveying device 3 that can be driven in reverse are always fed in the region of the working unit 2 and rewinded in the working unit 2 as needed to move the spinning cup 9 in the transverse conveying section 6 as necessary. To distribute through.

  In each working unit 2, one feeding auxiliary device 23 is arranged in the region of the feeding bobbin 10, and the member 27 supported by the feeding auxiliary device 23 so as to be slidable in the vertical direction is at this time. Thus, it is positioned at an expected position schematically shown in FIG. The spinning cup 9 supplied via the lateral conveyance section 6 is stopped under the feeding auxiliary device 23 accurately by a positioning means not shown in detail since it is known at the feeding position 10. In this case, the yarn guide device 36 of the feeding auxiliary device 23 connected to the stationary adapter 40 shown in detail in FIG. 2 is adjusted to the length of the spinning cup 9 to be processed.

  As soon as the spinning cup 9 is positioned at the feeding position 10, the member 27 is arranged with the lower edge 50 of the member 27 approximately in the region of the cup conical portion 51 of the spinning cup 9 via the driving device 30. Until it is lowered. At the same time or subsequently, the gripper tube 25 is swung into the partially open control casing 42 of the adapter 40 arranged on one end side of the yarn guide device 36 and connected to the adapter 40. By connecting the gripper tube 25, the control casing 42 is closed without leakage of negative pressure.

  That is, the negative pressure acting on the opening of the gripper tube 25 passes through the yarn guide device 36 and reaches the region of the winding tube tip of the spinning cup 9 positioned at the feeding position 10, It acts to generate a suction air flow in the region of the cup cone 51 of the spinning cup 9.

  Next, for example, the yarn end portion prepared in the cup conical portion 51 of the spinning cup 9 is processed by a pneumatic type yarn end unwinding device incorporated in the dust removing device 31. That is, the yarn end portion is unwound by the cup conical portion 51 of the spinning cup 9. Next, the suction air flow supplied through the gripper tube 25 loaded with negative pressure is subjected to a negative pressure load connected to the adapter 40 with the yarn stretched almost straight through the yarn guide device 36. The gripper tube 25 is supplied to the gripper tube 25, and the gripper tube 25 reliably sucks the lower thread.

  According to another embodiment of the present invention, the suction air flow in the yarn guide device 36 is assisted by an injection device. This injection device is arranged in an advantageous manner in the guide addition part 39 of the yarn guide device 36.

  As soon as the gripper pipe 25 grips the so-called lower thread, the gripper pipe 25 turns the gripped lower thread together to its upper end position, in which case the thread is inserted into the pneumatic splicing device 13, Thus, the lower thread is joined to the so-called upper thread remaining on the traverse bobbin 11.

  When the joining of the yarn end of the lower yarn and the yarn end of the upper yarn is completed and the gripper tube 25 is turned to the standby position (not shown), the winding process is newly started. Yes.

  In this case, the yarn is not disturbed during the winding process by the special configuration of the control casing 42 of the adapter 40, in particular by placing the sealing edge 49 of the control casing 42 out of the normal yarn path. The vehicle can travel through the adapter 40 without contacting the components of the adapter 40.

  The apparatus according to the present invention constitutes a feeding auxiliary device that can reliably perform the process as a whole. This unwinding assisting device reliably pulls the yarn end portion from the spinning cup 9 and also reliably delivers the pulled yarn end portion to the gripper tube 25 that is pivotally supported and negatively loaded. it can. In addition, the feeding assistance device can carefully handle the yarn during the winding process, and can realize a high winding speed.

1 is a schematic side view of a spinning section of a textile machine for producing a traverse bobbin provided with a feeding assist device constructed according to the present invention for pneumatically delivering yarn by a gripper tube. FIG. FIG. 2 is a partial cross-sectional perspective view of the feeding assist device schematically illustrated in FIG. 1. It is an enlarged view of the adapter of the feeding auxiliary | assistance apparatus comprised according to this invention. It is the schematic of a delivery auxiliary | assistance apparatus during delivering a thread | yarn end part to the gripper pipe | tube connected to the adapter.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Automatic traverse winding device, 2 Working part, Winding part, 3 Bobbin and winding pipe conveyance system, 4 Cup supply area, 5 Storage area, 6 Lateral conveyance area, 7 Winding pipe return guide area, 8 Conveyance plate, 9 Spinning Cup, 10 unwinding section, 11 traverse bobbin, 12 suction pipe, 13 yarn splicing device, 16 paraffin coating device, 17 yarn cutting device, 18 bobbin frame, 19 swivel axis, 20 yarn tension sensor, 21 traverse bobbin conveying device, 23 Auxiliary feeding device, 24 Winding device, 25 Gripper tube, 26 Bobbin drive device, Drive roller, Drive drum 27 Member, 28 Thread traverse device, 29 Thread guide finger, 34 Empty tube, 36 Thread guide device, 37 Upper tube, 38 Lower pipe, 39 Guide addition part, 40 Adapter, 4 Air flow guide segment, 42 control casing, 43 the gripper tube flap 44 controlled sliding block guide, 45 rear wall, 46, 47 control member, 48 control member, 50 lower edge 51 cup conical portion

Claims (6)

A winding section of a textile machine for manufacturing a traverse bobbin, which is provided with a feeding auxiliary device, and the feeding auxiliary device can be lowered to a predetermined position on the winding tube of the spinning cup, and the spinning cup In a type having a yarn guide device positioned on the upper side of the winding tube,
An adapter (40) for connecting the gripper pipe (25) is arranged on the end side of the yarn guide device (36) in the yarn traveling direction (F). The adapter (40) is connected to the spinning cup (9 ) To ensure that the negatively loaded gripper tube (25) is connected to the yarn guide device (36) without leaking sufficiently, so that the gripper tube (25 ) Is guided to a region at the tip of the spinning cup (9) positioned at the feeding position (10) via the yarn guide device (36), and the adapter ( 40) is a winding portion of a textile machine for manufacturing a traverse bobbin, wherein the component portion of the adapter (40) is formed so as to enter a range of a normal yarn path.   The stationary adapter (40) has a tubular airflow guide section (41) and a partially open control casing (42), which is connected to the gripper tube (42). The winding part according to claim 1, wherein the winding part corresponds to the gripper pipe (25) and the gripper pipe flap (43) during the turning of 25).   A control contour (44) is arranged in the region of the control casing (42), the control contour (44) being partly the gripper tube flap (43) and the opening of the gripper tube (25). The winding part according to claim 2, wherein the winding part is swung to a position where it can be opened.   Winding part according to claim 3, wherein the control contour (44) is arranged on a separate control member (48) positioned in the region of the control casing (42).   The control casing (42) matches the shape of the closed rear wall (45), the side wall (46) matching the shape of the gripper pipe (25), and the shape of the gripper pipe flap (43) facing this side wall (46). The winding part according to claim 2, wherein the winding part has a side wall (47).   The control casing (42) has a cover wall (48) with a sealing edge (49) arranged outside the yarn path, and a gripper tube flap on the sealing edge (49) during thread take-up. The spinning unit according to claim 2, wherein (43) abuts.

Images