Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H54/00—Winding, coiling, or depositing filamentary material
  • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
  • B65H54/28—Traversing devices; Package-shaping arrangements
  • B65H54/2806—Traversing devices driven by cam
  • B65H54/2809—Traversing devices driven by cam rotating grooved cam
  • B65H54/2812—Traversing devices driven by cam rotating grooved cam with a traversing guide running in the groove
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2701/00—Handled material; Storage means
  • B65H2701/30—Handled filamentary material
  • B65H2701/31—Textiles threads or artificial strands of filaments
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2701/00—Handled material; Storage means
  • B65H2701/30—Handled filamentary material
  • B65H2701/37—Tapes

Definitions

• the invention relates to a winding device for winding a thread into a bobbin according to the preamble of claim 1.
• Such winding devices are used in particular to wind threads or tapes on a spool.
• 240 winding devices are arranged on opposite sides, i.e. 120 winding devices are placed on each long side of the machine.
• the winding devices are arranged in five rows one above the other.
• Each of the winding devices winds a ribbon into a spool with an outer diameter of approx. 120 mm. With such an arrangement, it is desirable that the winding devices be as compact as possible with little
• the bobbin is wound on a stationary winding spindle.
• a traversing device with a roller is movably arranged on a machine frame by means of a carrying device, so that the roll with the traversing device moves away from the stationary winding spindle with the traversing device as the spool diameter increases.
• Solutions are known in the prior art in which the carrying device is designed as a slide in a straight guide or as a swivel arm.
• the traversing device to ensure a uniform drive in every position of the slide.
• Another object of the invention is to implement such a winding device with a particularly low-wear drive unit that is reliable in the transmission of torque.
• the invention is characterized in that the reverse thread shaft of the traversing device and the winding spindle are arranged at a fixed distance from one another on a machine frame of the winding device. This makes it easy to implement the drive and the technology-related transmission ratio between the winding spindle and the traversing device. A relative movement of the traversing device to the winding spindle is not necessary according to the invention.
• the straight guide of the traversing thread guide is connected to the carrying device, the carrying device being designed to be pivotable about the axis of the reversing thread shaft.
• the traversing thread guide is moved away from the bobbin surface by the carrying device. Since the traversing thread guide is guided with one foot in a circumferential reversing groove of the reversing thread shaft and the straight guidance moves parallel to the circumference of the reversing thread shaft through the carrying device, is during - 3 -
• the winding of the bobbin ensures an even traverse of the thread.
• the thread is guided on the spool over a rotatable roller before emergence.
• the roller is arranged after the traversing thread guide and connected to the carrying device. This ensures that the thread is evenly deposited on the bobbin surface.
• the distance between the traversing thread guide and the roller remains constant during the entire winding cycle. This means that the drag length and thus the package length to be wound remains unchanged during the entire package travel.
• the roller is guided in contact with the circumference of the bobbin and serves as a distance control. This makes it easy to combine the sensing of the coil diameter and the movement of the carrying device.
• the pre-selected distance between the bobbin surface and traversing thread guide remains unchanged throughout the bobbin travel. Furthermore, the contact of the roller on the spool surface leads to a uniform spool build-up over the entire spool length.
• a thread guide is arranged on the carrying device in the thread running direction in front of the traversing thread guide.
• the thread guide is designed as a curved overflow rod.
• the curvature of the overflow rod is selected such that the thread is deflected differently to compensate for the thread tension fluctuations caused by the traversing movement.
• Thread in the end regions of the traversing stroke is deflected less strongly by the overflow rod than in the central region of the traversing stroke, so that larger thread tension fluctuations are avoided.
• the carrying device can be designed, for example, as a swivel arm which carries the straight guide of the traversing thread guide at its end and is mounted on a rotary bearing formed laterally in an axis extension of the reversing thread shaft.
• the carrying device is designed as a housing of the threaded shaft according to the development of the invention according to claim 6.
• the housing of the reversed threaded shaft is rotatable in the circumferential direction of the reversed threaded shaft. In this way, a particularly compact design of the carrying device is realized, which at the same time represents protection of the reverse thread shaft.
• the evasive movement of the traversing thread guide or the pressure roller is thus carried out with the smallest possible swivel radius. This leads to a low overall height of the winding device, so that up to six winding devices can be arranged one above the other in stages in a system for producing tapes. Since the traversing thread guide is guided in the housing, the distance between the roller and the traversing thread guide remains constant when the housing is rotated. This means that the drag length and thus the package length to be wound remains unchanged during the entire package travel.
• the housing is rotatably supported on the machine frame in a projecting manner.
• the reverse thread shaft has a free drive end at the bearing end of the housing, which is connected to a drive.
• the contact forces that act between the roller and the spool surface are absorbed exclusively by the housing mounting in the machine frame.
• the reverse thread shaft is freely rotatable in the housing, without having to take up a surface load from the reverse thread shaft bearing.
• the reverse thread shaft is advantageously driven by a belt drive, preferably a toothed belt drive.
• the design of the winding device according to the invention has the advantage that rotating belt tensioning devices can be completely dispensed with.
• the belt drive between the motor and the intermediate shaft can be tensioned by the thrust movement of the bearing bracket.
• the pivoting movement of the holder leads to a tensioning of the belt drive between the intermediate shaft and the reverse thread shaft.
• the housing of the reversing thread shaft is connected to a force transmitter which is provided for loading and / or relieving the contact force acting between the roller and the spool surface.
• the contact force between the roller and the bobbin surface can thus be set as desired during the bobbin travel.
• the design of the force transmitter according to claim 11 is particularly advantageous.
• the spring-loaded sliding washer attached to the circumference of the housing and the opposite fixed contact washer form a sliding pair.
• the contact force exerted by the growing coil over the roller causes the housing to twist.
• the swiveling resistance and thus the contact force can be influenced by the sliding pairing.
• Fig. 1 and Fig. 2 schematically shows a side view of a winding device according to the invention
• FIG. 3 schematically shows a front view of the winding device from FIG. 1;
• FIGS. 4 and 5 schematically show an embodiment of a carrying device with a traversing device of the winding device from FIG. 1;
• FIG. 6 schematically shows a view of the drive unit of the winding device from FIG. 1.
• the winding device consists of a machine frame 14.
• a rotatable winding spindle 8 is cantilevered on the machine frame 14.
• a sleeve 7 for receiving a thread or a ribbon is stretched on the winding spindle 8.
• the winding spindle 8 is connected to a drive (not shown here) and is driven in the direction of the arrow.
• the roller 6 extends over the entire winding length of the coil 9.
• the roller 6 is rotatably mounted in a holder 21.
• the holder 21 is connected to a movable support device 11, which is designed as a housing of a reversible threaded shaft 10.
• the holder 21 is attached to a free end of a carrier 22.
• the carrier 22 is fixed to the housing 11, which is a reverse thread shaft
• the reverse thread shaft 10 is part of a traversing device 37.
• the traversing device 37 is connected to the machine frame 14 via the housing 11.
• the housing 11 is rotatably mounted in the machine frame 14 - as will be described in more detail later.
• the reverse thread shaft 10 is rotatably mounted and is driven by means of a drive (not shown here).
• the carrier 22 On the projecting part of the housing 11, the carrier 22 is fastened to the circumference.
• the carrier 22 has an opening 36.
• the traversing thread guide 5 is connected to the reversing thread shaft 10 through the opening 36.
• a straight guide 12 extends in parallel to the reverse thread shaft 10, in which the traversing thread guide 5 is guided with a central part. As shown in FIG. 3, the straight guide 12 is attached to the carrier 22.
• the cover 43 of the guide shown in FIGS. 1 and 2 has been omitted from the view of FIG. 3 due to the clarity.
• the cover 43 serves only to protect the guide means between the reversing thread shaft 10 and the traversing thread guide 5.
• the cover 43 has an opening or a slot for the free end of the traversing thread guide 5. At the free end of the traversing thread guide 5 there is a guide notch for guiding the thread 1 trained so that a tapering thread 1 is moved back and forth across its direction within a traversing stroke by the traversing thread guide 5.
• a thread guide 4 is arranged in the thread run on the carrier 22.
• the thread guide 4 is as one - 8th -
• Overflow rod (Fig. 3) executed, which is partially wrapped by the thread 1.
• the overflow rod 4 is aligned transversely to the thread run and has a curved course.
• the curvature of the overflow rod 4 is chosen such that the thread experiences different deflections within the traversing movement. The different deflections lead to a compensation of the change in length of the thread due to the traversing movements.
• the thread can be wound up with even thread tension.
• the overflow rod 4 is fastened to the carrier 22 by means of holders.
• a dancer arm control unit is attached to the side of the traversing device 37 on the machine frame 14, as shown in FIGS. 1 and 2.
• the dancer arm control unit consists of two fixed deflection rollers 2.1 and 2.2, which are attached to a carrier 15.
• a dancer arm roller 38 is offset between the two deflection rollers 2.1 and 2.2.
• the dancer arm roller 38 is attached to a free end of a dancer arm 3.
• the dancer arm 3 is connected to a controller 13 at the opposite end by a controller shaft 16.
• the thread 1 runs over the two fixed deflection rollers 2.1 and 2.2 and over the dancer arm roller 38 of the dancer arm 3 to the thread guide 4.
• the dancer arm 3 is acted upon by the
• the controller 13 is connected to the drive of the winding spindle 8 and regulates the winding spindle speed depending on the size of the sag.
• the size of the winding spindle 8 is the size of the winding spindle 8 and regulates the winding spindle speed depending on the size of the sag.
• Slack is determined on the one hand by the speed at which the thread is fed and on the other hand by the winding speed on the bobbin.
• the size of the sag is adjusted to a constant value. This ensures that the thread can be wound on the winding spindles at a constant speed during the entire winding cycle.
• the traversing thread guide 5 is driven via the reversing thread shaft 10.
• a foot of the traversing thread guide 5 is guided in a groove of the reversing thread shaft, as will be described in more detail later.
• the drive of the reverse thread shaft and the drive of the winding spindle are connected such that the ratio of the winding spindle speed and the traversing frequency remains constant during the entire winding travel. This creates a precision coil.
• the roller 6 lies against the surface of the sleeve 7 or is at a short distance from the surface of the coil. After being caught on the sleeve 7, the thread is wound into a bobbin 9.
• Fig. 2 the situation is shown shortly before the end of the winding trip.
• the position of the roller 6 and the traversing thread guide 5 has changed relative to the winding spindle 8 by rotating the housing 11 in the direction of the arrow on the circumference of the reversing thread shaft 10.
• the contact force between the roller 6 and the coil surface is determined here by the weight force acting on the roller 6 and the frictional force which is required to pivot the housing 11. In order to influence the size of the contact force, it is therefore particularly advantageous if the friction force can be changed to rotate the housing 11. - 10 -
• FIG. 4 shows an embodiment of the connection between the reverse thread shaft and the traversing thread guide.
• the traversing thread guide 5 is essentially composed of three parts. It has a foot 47 which is guided on the circumference of the reversing thread shaft in the groove base of the reversing groove 41. The foot 47 is followed by a central part 46 which is guided in a straight guide 12. The straight guide extends parallel to the reversing thread shaft 10 over the entire length of the traversing stroke. The middle part 47 is followed by an end part 49. At the free end of the end part 48, a guide notch 44 is made, in which the thread is guided.
• the straight guide 12 is arranged in the opening 36 and connected to the carrier 22.
• the carrier 22 is attached to the housing 11 designed as a supporting device.
• the housing 11 is rotatably supported in the machine frame 14, not shown here, in the circumferential direction of the reversing thread shaft 10.
• the guide means introduced into the opening 36 of the carrier 22 are protected from the outside by a cover 43.
• a slot 49 is made in the cover 43 for the end part 48 of the traversing thread guide 5.
• the slot 49 extends over the entire traversing stroke range.
• the reversing thread shaft 10 is driven in the direction of the arrow.
• the Kehrnut 41 formed obliquely over the circumference of the reversing thread shaft 10 now leads to the traversing thread guide 5 being moved axially.
• the straight guide 12 ensures that the traversing thread guide is guided back and forth along a surface line of the bobbin surface at a predetermined distance from the bobbin surface. Due to the increasing coil diameter, the roller 6, not shown here, is lifted out of its position and, due to the rigid connection via the supports 21 and 22, causes the housing 11 to rotate in the direction of the arrow. The straight guide 12 is thus removed from its position on the circumference of the reversing thread shaft 10 - 11 -
• Fig. 5 a longitudinal section through the support device and the reverse thread shaft is shown schematically.
• the machine frame 14 is provided with a receiving bore 39 in which the housing 11 is rotatably arranged. In this case, the housing 11 penetrates the receiving bore 39.
• the housing 11 is configured to be projecting far out.
• the carrier 22 is connected to the housing 11 on the projecting part.
• the guide 12 of the traversing thread guide 5 and the holder 21 of the roller 6 are arranged on the carrier 22.
• the reversing thread shaft 10 is rotatably mounted within the housing 11. In the area of the traversing thread guide 5, the reversing thread shaft 10 is formed with a reversing groove 41 on the circumference.
• the reversible thread shaft protrudes from the housing 11 with a drive end 35.
• a pulley 33 is attached to the drive end 35.
• the reversing thread shaft 10 is rotatably mounted in the housing 11 by means of the bearings 40.
• a contact disk 16.1 and 16.2 is arranged on both sides concentrically to the receiving bore 39.
• a sliding disk 17 is fastened on the circumference of the housing 11 between the contact disk 16.1 and the carrier 22.
• the sliding washer 17 bears against the contact washer 16.1.
• the sliding disc 18 is movably attached to the circumference of the housing 11.
• On the drive side, a stop 20 is attached to the circumference of the housing 11 at a distance from the sliding disk 18. Between the stop 20 and the sliding washer 18 is on - 12 -
• a spring 19 is clamped around the circumference of the housing 11.
• the stop 20 is connected to the housing 11 via a releasable fastening means 42.
• the rotational resistance of the housing 11 is thus determined by the friction occurring between the contact disks 16.1 and 16.2 and sliding disks 17 and 18.
• the contact pressure between the sliding washers and the contact washers can be increased.
• the detachable stop 20 is adjusted axially on the circumference of the housing 11.
• the contact disks 16 are preferably made of special materials which result in favorable friction conditions with the sliding disks.
• a high damping of the traversing device is achieved by the design.
• FIG. 6 shows the drive situation of the winding device from FIG. 1.
• the drive device is arranged on the rear of the machine frame 14.
• the winding spindle 8 is driven by a motor 23.
• the second end of the drive shaft 34 has a drive pulley 28.
• the drive pulley 28 is connected to a pulley 29 via the belt 31.
• the pulley 29 is fixed on an intermediate shaft 27.
• a second pulley 30 is attached to the intermediate shaft 27.
• the second pulley 30 of the intermediate shaft is connected via the belt 32 to the pulley 33 of the reversing thread shaft or the drive end 35 of the reversing thread shaft 10.
• a bracket 24 which can be pivoted about the engine center is arranged on the engine 23.
• the holder 24 has a guide 25 in which a bearing bracket 26 is slidably arranged.
• the bearing bracket 26 carries the intermediate shaft 27.
• the belt 31, which carries out the transmission from the motor 23 to the intermediate shaft 27, is tensioned in the holder 24 by the axial displacement of the bearing bracket 26.
• the belt 32, which drives the reversing thread shaft 10, is tensioned by pivoting the holder 24 around the motor center. This design eliminates any belt tensioners.
• the principle is suitable, all technological - 13 -
• winding device described is in principle suitable for winding threads, tapes or other types of wire or ribbon-shaped winding goods. It is characterized by a compact and simple structure, so that high-quality precision coils can be produced in a small space.
• the support device is designed here only as an example of a rotatable housing of the reversible thread shaft.
• the carrying device allows a pivoting movement about the axis of the reversing thread shaft.
• a swivel arm is used as a carrying device, for example, the swivel movement could be carried out by an independent drive which can be activated by the distance control.
• the distance control mechanical, electrical or opto-electrical sensors can be used to detect the coil diameter of the coil.

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• Winding Filamentary Materials (AREA)
• Multiple-Way Valves (AREA)

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• 1999
  • 1999-02-05 AT AT99907514T patent/ATE252047T1/de not_active IP Right Cessation
  • 1999-02-05 EP EP99907514A patent/EP0973685B1/fr not_active Expired - Lifetime
  • 1999-02-05 DE DE59907347T patent/DE59907347D1/de not_active Expired - Fee Related
  • 1999-02-05 WO PCT/EP1999/000792 patent/WO1999041180A1/fr not_active Ceased

Non-Patent Citations (1)

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