JP2018090419A - Yarn connecting means - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide yarn connecting means (10) for performing a pneumatic connection of two yarn ends by means of a connecting prism (23) which can apply compressed air and has a connecting channel (41) which can be closed by a lid element (18) during a connecting operation.SOLUTION: According to the present invention, it is assumed that a lid element (18) is slidably supported and can be set to a position (I) in which a connecting channel (41) of a connecting prism (23) is opened upward, or a position (II) in which the connecting channel (41) is closed upward, by means of drive means (44).SELECTED DRAWING: Figure 2

Description

  The invention relates to a thread connection means for carrying out a pneumatic connection of two thread ends using a connection prism which can be applied with compressed air and has a connection channel which can be closed by a lid element during the connection operation.

  The thread connecting means have been known for many years from numerous patent applications and various textile machine manufacturer handbooks in connection with cheese automatic manufacturing machines.

  As such a thread connection means, a connection channel to which the compressed air of a so-called connection prism can be applied is connected by a thread connection means that remains unclosed during the connection work, and a lid element during the connection work. Both thread connection means in which the channel is closed are known.

  German Patent No. 3935536 (DE 3935536 C2) describes, for example, a thread connecting means whose connecting channel comprises a connecting prism having a substantially circular cross section.

  The connecting channel, where the compressed air blowing openings meet in the tangential direction, has a continuous slit above which the yarn ends connected therethrough are inserted into the connecting prism. This slit in the connection channel is closed by the lid element during the connection process.

  However, German Patent No. 3935536 (DE 3935536 C2) does not give any hint regarding the lid element. The patent specification does not describe, for example, how the lid element is supported or how it is actuated.

  The Schlahorst handbook “Autoconer 338” includes a cam plate drive for driving various functional elements such as a thread connecting means, for example, a thread clamping / cutting means, a swivelable lid element, and a thread feeding means. The thread connecting means to be implemented is described.

  In short, in the drive system housing of the yarn connecting means connected to the winding station housing of the workstation, the cam plate package to which the driving means dedicated to the winding station is connected is supported via the plug coupling. ing. Each individual cam plate of the cam plate package is connected to the above-mentioned functional element such as a lid element that is pivotally supported by the thread connecting means via a lever lever.

  Furthermore, from DE 102004051038 A1 (DE102004051038A1), a thread connecting means is known which is equipped with a control element which is configured as a control segment which is pivotably supported.

  The control segment disposed in the drive system housing of the yarn connecting means has external teeth that mesh with the pinion gears of the individual drive means that can be specifically controlled. The control segment is connected via an operating element with a thread clamping / cutting means, a thread feeding means, and a pivot element, which is pivotally supported and closes the connection channel of the connecting prism upward during the connection process. ing.

  As described above, the yarn connecting means provided with a lid element that is normally supported so as to be pivotable has a proven track record in practice, but such yarn connecting means often have the disadvantage of being bulky in structure. is there. In short, such a thread connection means not only due to the pivotally supported lid element, but also requires a relatively large installation space, as is known, in the area of a cheese automatic machine workstation. .

German Patent Invention No. 3935536 German Patent Application No. 102004051038

Handbook "Autoconer 338" (Schlaforst)

  Starting from the yarn connecting means according to the conventional technique, the present invention has a connecting prism provided with a connecting channel capable of applying air pressure that can be closed by a lid element during a connecting operation, provided that the yarn connecting means It is an object to develop a thread connecting means having the smallest possible space requirement. In short, the yarn connection means must be compact enough to be employed in a workstation that has only a relatively limited mounting space for an automatic cheese making machine.

  According to the present invention, the problem is that, according to the present invention, the lid element is slidably supported, and the lid element opens the connection channel of the connection prism upward, or the connection channel is directed upward. This is solved by a thread connecting means with a lid element that can be positioned in a closed position.

  Advantageous forms of the invention are the subject matter of the dependent claims.

  In the embodiment according to the present invention, the thread connecting means is different from the conventionally known rotatably supported lid element, and is very compact by the slidably supported lid element and the driving means belonging to the lid element. In addition to the advantages of being a configuration, the connection channel of the connecting prism can be actuated as needed, without problems, by appropriately positioning the lid element, which is slidably supported as required. It also has the advantage that it can be set to a state. In the present invention, slidable is synonymous with a straight movement on a certain surface. In other words, the lid element can slide along a plane arranged parallel to the upward opening of the connection channel. The opening in the upward direction corresponds to an opening connected to an opening provided facing the front surface. Therefore, the opening in the upward direction extends along the spreading direction parallel to the longitudinal spreading axis of the connection channel, and in this direction perpendicular to this, it is possible to take out the thread that has been connected from here. Or it has the opening direction which can insert the thread | yarn section of the thread | yarn terminal connected from now on along this in this connection channel.

  The thread connecting means according to the invention having a connecting prism with a slidably supported lid element operates reliably and its space requirements are relatively small. The yarn connecting means according to the present invention can be preferably used particularly for a workstation having only a very small space of an automatic cheese manufacturing machine.

  In an advantageous configuration, the drive means comprise a rotatably supported switch and guide plate connected to a lid element that is slidably supported by a motion transmission mechanism.

  With such a structure, the structure is relatively simple and the space can be saved, while the thread end to be connected can be set in the region of the connecting channel of the connecting prism without any problem, and the connecting channel is being connected. In addition, it can be ensured that it can be closed with high reliability.

  As a result of adopting the slidably supported lid element and the preferably configured driving means, the thread end is selected as the connection channel of the connection prism, and either the suction nozzle or the grab pipe is selected and set in the connection channel In addition, it is possible to easily provide reliable fixing of the yarn end disposed in the connection channel during the connection operation.

  The configuration of the yarn connecting means according to the present invention makes it possible to obtain a reliable and durable yarn connection.

  In a preferred form, a permanent magnet insert is also supported in the body of the connecting prism, which serves to hold at least one lid element made of ferromagnetic material. The at least one permanent magnet insert is preferably provided adjacent to the connecting channel. As a result, a reliable holding effect can be obtained in the vicinity of the upper opening of the connection channel.

  More preferably, at least two permanent magnet inserts are provided below the intermediate layer of the connection channel and disposed in the body of the connection prism. This ensures a reliable holding effect for the lid element on both sides of the connection channel.

  By adopting at least one permanent magnet insert for fixing the ferromagnetic lid element, it is possible to realize a reliable guide of the lid element supported slidably and without taking up space. Furthermore, it is difficult to be inhibited by dust or fiber particles.

  The connecting prism preferably further comprises counter-holding means in which the lid element is positioned when the lid element is in a position to close the connection channel upward during the connection operation. .

  The counter holding means, which is a physical limit of the lid element, ensures that the lid element cannot be lifted even when the magnetic holding force of the permanent magnet insert is exceeded.

  In a further preferred embodiment, the motion transmission mechanism comprises a guide element disposed on the switch and guide plate, the guide element having a guide groove including a first connection lever guided by a switch pin. A second connection lever connected to the lid element is movably jointed to the first connection lever.

  Such a configuration has the advantage that the rotational movement by the switch guide plate is converted into an axial movement, ie, a sliding movement of the lid element, in a relatively easy manner.

  As a result of the corresponding movement of the switch guide plate, the lid element is reliable and the connecting prism connecting channel is open upward or the connecting prism connecting channel is closed upward. Positioned to one of the existing positions.

  In the preferred form, it is further assumed that the drive means comprises a stepping motor connected to the workstation computer via a control line.

  In such a configuration, the control cost required for accurately controlling the stepping motor is relatively low.

  The stepping motor preferably further includes a pinion gear that meshes with the teeth of the switch / guide plate.

  Such a stepping motor is a low-cost mass-produced part that is commercially available, has a proven track record in various fields, and has a long service life and reliability.

  Further details of the invention can be taken from the examples illustrated by the following figures.

It is a schematic side view of the workstation of the automatic cheese manufacturing machine provided with the thread | yarn connection means comprised according to this invention. It is a top view of the thread | yarn connection means comprised according to this invention. It is the side view shown partially as a section of the main part of the connecting prism of the thread connecting means provided with the lid element supported slidably.

  FIG. 1 depicts a schematic side view of a workstation 2 of a fiber processing device for producing cheese, which in this example is an automatic cheese maker 1.

  Such an automatic cheese manufacturing machine 1 has a number of such workstations 2 that are similarly configured and arranged in a row.

  On these workstations 2, for example, a feed reel 9, which is a spinning head obtained by a ring spinning machine, is rewound onto a larger capacity cheese 15, which are automatically operated by a service unit, It is passed to a cheese transport means 21 having the entire length of the device and sent to a reel delivery station located at the end of the device.

  In this embodiment, the cheese automatic manufacturing machine 1 in FIG. 1 includes a head carry-in section 4, a temporary storage section 5 that can be driven in the reverse direction, a lateral transport section 6 that leads to the winding station 2, and As the spinning head / empty sleeve conveying system 3 in which only the sleeve returning section 7 is shown, a logistics means dedicated to the apparatus is equipped.

  The spinning head / empty sleeve conveying system 3 is set in the vertical direction on the conveying plate 8 and feeds the spinning sleeve 9 to the unwound empty sleeve.

  The spinning head 9 temporarily stored in the temporary storage section 5 via the head carry-in section 4 has a larger volume of cheese 15 at the unwinding position AS in the region of the lateral transport section 6 at the position of the workstation 2. Rewind to.

  Each workstation 2 is equipped for this purpose with various means that allow a normal winding operation of the workstation 2 as is known and therefore only suggestive.

  In short, such a workstation 2 is equipped with, for example, yarn processing / thread treatment means such as a yarn tensioning means, a yarn purifying means having a dedicated yarn cutting means, a paraffin coating means, and a yarn tension sensor.

  As is obvious, the winding of the cheese 15 is operatively supported by the rotary shaft 22 and by a winding means 24 comprising a winding frame 28 having means for rotatably supporting the sleeve of the cheese 15. To be implemented.

  During the winding process in the winding frame 28, the cheese 15 supported so as to be freely rotatable is in contact with, for example, a so-called yarn guide drum 14 on its surface, so that it can be frictionally gripped. Interlocked.

  Such a yarn guide drum 14 is known in the art to have a yarn guide groove that guides the yarns fed therein to be fed onto the take-up reel as an intersecting take-up layer during the winding process. Have.

  However, instead of the yarn guide drum, it is also possible to use a reel drive roller only for rotating the cheese without grooves in a frictional manner during the winding process.

  In such a case, the shifting of the yarn sent to the cheese 15 is carried out by another thread changer means having, for example, a finger type thread guide.

  From FIG. 1 it is further apparent that the workstation 2 also has a suction nozzle 12, a grab pipe 25 and a thread connecting means 10, respectively.

  Here, the upper thread 31 sent to the surface of the cheese 15 is received after the interruption of the winding by the suction nozzle 12 supported so as to be rotatable around the rotation shaft 13 within the limit range, and the thread connection means 10 receives the upper thread 31. Move.

  The grab pipe 25 that can freely rotate around the rotary shaft 20 within the limit range treats the lower thread 32 connected to the spinning head 9 when the winding is interrupted. In short, the lower thread 32 is also connected to the thread. Used to be moved to means 10.

  The thread connecting means 10 is connected to the workstation housing 33 via suitable (not shown) attachment means, which is normally arranged behind the normal thread path.

  As will be described in detail below, the yarn connecting means 10 includes a connecting prism 23 having a connection channel 41 capable of applying air pressure for connecting the yarn end of the upper yarn 31 and the yarn end of the lower yarn 32, and the like. doing. In the area of the thread connecting means 10 there is further arranged a support and unwinding narrow pipe 17 for preparing the thread ends.

  As will be described below, in the area of the thread connecting means 10 having the lid element 18 slidably supported, the thread clamping means (not shown), the thread cutting means, and the thread feeding means are also provided in the same manner as in the prior art. Thread treatment means such as are arranged.

  Such an automatic cheese manufacturing machine 1 is usually further equipped with a central control unit 11 connected to the workstation computer 29 of each individual workstation 2 via, for example, a device bus 16.

  2 and 3 show an enlarged view of the yarn connecting means 10 constructed according to the present invention.

  The thread connecting means 10 according to the invention, shown as a top view in FIG. 2, is also equipped with a slidably supported lid element 18 which can be selectively set to position I and position II by the drive means 44. Yes.

  The lid element 18 is rotatably supported via an operation transmission mechanism 19 having a first connection lever 26 and a second connection lever 27, and is itself a switch / guide connected to an electric motor type driving means 34. It is connected to the plate 30.

  The drive means 34, preferably configured as a stepping motor and connected to the workstation computer 29 via the control line 36, is equipped with a pinion gear (38) that meshes with the teeth (47) of the switch guide plate 30. Yes.

  The stepping motor 34 controlled by the workstation computer 29 is responsible for always positioning the lid element 18 as needed. In short, the workstation computer 29 has moved the lid element 18 to the position I where the connection channel 41 of the connecting prism 23 is open to the information as shown in FIG. As shown, the connection channel 41 is controlled to be set in the position II closed in the upward direction.

  The lid element 18, which is configured in a plate shape and is slidably supported by a ferromagnetic material, is guided between the thread guide plates 35 of the connection prism 23 and is permanently supported by the main body 40 of the connection prism 23. It is locked by a magnet insert 39.

  In addition, the connection prism 23 also has counter holding means 45 disposed behind the connection channel 41 with reference to the moving direction of the lid element 18.

  When the lid element 18 is in position II during the connection operation, it is locked by the counter holding means 45 so that it is never lifted upward from the connection channel 41 by the pressure generated by the incoming connection air. Yes.

  As further shown in FIG. 2, the switch / guide plate 30 that is rotatably supported has not only the teeth 47 but also a guide element 42 having a guide groove 43.

  In the guide groove 43 of the guide element 42, the first connection lever 26 is guided by the trigger cam 46.

  FIG. 3 shows the body 40 of the connecting prism 23 of the yarn connecting means 10 having the slidably supported lid element 18 according to the present invention from the side as a partial sectional view.

  As can be seen, the lid element 18 is set to a position II where the lid element 18 closes the connection channel 41 of the connection prism 23 upward.

  As described above, the lid element 18 made of a ferromagnetic material is guided by the side of the thread guide plate 35, and is magnetically “held” by the permanent magnet insert 39 disposed below the lid element 18. To be applied.

  The lid element 18 set in the position II further reaches a counter holding means 45 for restraining the lid element 18 from being lifted even under the influence of the pressure of the connection channel 41, for example, on the front side thereof. .

Function of the thread connecting means 10 equipped with a slidably supported lid element 18 according to the invention:
During normal winding operation, the yarn connecting means 10 is in the switching position shown in FIG. In short, the lid element 18 slidably supported is positioned by the drive means 44 so that the connection channel 41 of the connection prism 23 of the yarn connection means 10 is set to a position I where the information is opened to information.

  For example, when the winding is interrupted, such as when the yarn cleaning means finds an unacceptable error and the yarn cleaning is performed, the upper thread 31 is wound around the cheese 15, while the lower thread 32 is usually It is caught by the thread tension means.

  Subsequently, in the workstation computer 29 that recognizes the interruption of winding, the upper thread 31 is caught again by the suction nozzle 12 and is slidably supported by the pivotable suction nozzle 12. Is moved to the yarn connecting means 10 set at the position I as described above. In short, the suction nozzle 12 inserts the upper thread 31 guided by the thread guide plate 35 into the connection channel 41 of the connection prism 23 opened upward.

  Subsequently, or at the same time, the grab pipe 25 takes the lower thread 32 to the thread tension means, and similarly inserts the lower thread 32 into the connection channel 41 of the connection prism 23 opened upward.

  In the next step, as shown in FIG. 3, the lid element 18 is moved to a position II where the connection channel 41 of the connection prism 23 is closed upward. In short, the workstation computer 29 moves, via the control line 36, the electric motor type drive means 34, which is configured as a stepping motor, through the supported switch / guide plate 30 that is rotatably supported in the direction V. Control to rotate.

  At this time, since the switch / guide plate 30 is connected to the motion transmission mechanism 19 connected to the lid element 18 slidably supported in the axial direction, this is connected to the connection channel 41 of the connection prism 23. Move to position II, which is closed upward.

  Thereafter, the thread ends of the upper thread 31 and the lower thread 32 placed in the closed connection channel 41 are prepared for the connection operation.

  That is, the yarn ends 31 and 32 are sucked by the supporting and unwinding narrow pipe 17 and at least part of the yarn is unwound. However, the dust and yarn powder generated at this time are discarded to the outside. .

  The prepared yarn end is then set in the connecting channel 41 of the connecting prism 23 to suit the purpose, and the compressed air perforations 37 are connected so that the yarn connection is substantially indistinguishable from the yarn. Air is applied.

  Subsequently, the workstation computer 29 appropriately controls the stepping motor 34 so that the lid element 18 is returned to the position I and the yarn connecting means 10 is opened again. In short, the stepping motor 34 rotates the switch / guide plate 30 in the direction R, whereby the lid element 18 slidably supported is set to the position I again by the motion transmission mechanism 19.

  The thread connected as instructed returns to the thread path from the connection channel 41 of the connection prism 23 so that the normal winding process can continue.

Claims (8)

For carrying out pneumatic connection of two yarn ends with a connecting prism (23) having a connecting channel (41) which can be applied with compressed air and can be closed by a lid element (18) during the connecting operation Thread connecting means (10),
The lid element (18) is slidably supported, and the lid element (18) opens the connection channel (41) of the connection prism (23) upward by a driving means (44). Yarn connecting means characterized in that it can be set in position (I) or position (II) in which the connection channel (41) is closed upward. The drive means (44) has a switch / guide plate (30) rotatably supported connected to the lid element (18) slidably supported by an operation transmission mechanism (19). The yarn connecting means (10) according to claim 1, characterized in that Supported in the body (40) of the connecting prism (23) is a permanent magnet insert (39) that serves to hold at least one lid element (18) made of ferromagnetic material. The yarn connecting means (10) according to claim 1, characterized in that In the body (40) of the connecting prism (23), at least two permanent magnet inserts (39) acting to hold the lid element (18) made of ferromagnetic material are connected to the connecting channel ( 41) Yarn connection means (10) according to claim 3, characterized in that it is supported under the intermediate layer (41). The connecting prism (23) according to claim 1, characterized in that it has counter-holding means (31) in it when the lid element (18) is set in the position (II). Yarn connecting means (10) as described. The motion transmission mechanism (19) is a guide element (42) disposed on the switch / guide plate (30) and includes a first connection lever (26) guided by the switch pin (32) ( A thread connecting means (10) according to claim 2, characterized in that it comprises a guide element (42) having 43). The yarn connection according to claim 6, wherein a second connection lever (27) connected to the lid element (18) is movably jointed to the first connection lever (26). Means (10). The thread connection according to claim 1, characterized in that the drive means (44) comprises a stepping motor (34) connected to a workstation computer (29) via a control line (36). Means (10)

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