EP0950746A1 - Dispositif pour tendre le tissu placé sur les rouleaux dans une machine à broder - Google Patents

Dispositif pour tendre le tissu placé sur les rouleaux dans une machine à broder Download PDF

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Publication number
EP0950746A1
EP0950746A1 EP98100199A EP98100199A EP0950746A1 EP 0950746 A1 EP0950746 A1 EP 0950746A1 EP 98100199 A EP98100199 A EP 98100199A EP 98100199 A EP98100199 A EP 98100199A EP 0950746 A1 EP0950746 A1 EP 0950746A1
Authority
EP
European Patent Office
Prior art keywords
fabric
traction means
spring
chain
clamping device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98100199A
Other languages
German (de)
English (en)
Other versions
EP0950746B1 (fr
Inventor
Franz Lässer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Franz Laesser AG
Original Assignee
Franz Laesser AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Franz Laesser AG filed Critical Franz Laesser AG
Priority to EP98100199A priority Critical patent/EP0950746B1/fr
Priority to AT98100199T priority patent/ATE191022T1/de
Priority to DE59800107T priority patent/DE59800107D1/de
Priority to TR1999/00022A priority patent/TR199900022A2/xx
Publication of EP0950746A1 publication Critical patent/EP0950746A1/fr
Application granted granted Critical
Publication of EP0950746B1 publication Critical patent/EP0950746B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C9/00—Appliances for holding or feeding the base fabric in embroidering machines
    • D05C9/08—Appliances for holding or feeding the base fabric in embroidering machines in machines with horizontal needles
    • D05C9/10—Work holders or carriers
    • D05C9/12—Holding or stretching arrangements for the base fabric in embroidery work holders

Definitions

  • the present invention relates to a tensioning device for tensioning one around the fabric waves of an embroidery machine laid fabric by rotating at least one wave of fabric, with a driving wheel on one axis and one in a radius traction devices placed around the axis, a tensioner for shortening and extending the traction device and one against the Clamping direction acting on the traction spring, whereby Traction device and driving wheel can be coupled by pull on the traction device or can be uncoupled by relaxing the traction mechanism.
  • EP-B-0 148 127 leads a fabric web from a lower wave to an upper wave.
  • the area of the fabric stretched between the waves forms the embroidery ground. If this area is embroidered, then he wound up on the upper fabric shaft and new embroidery base is subtracted from the lower fabric wave.
  • the gate will according to the mass transfer from an upper position in move to a lower position.
  • both material shafts can be rotated in opposite directions.
  • a ratchet wheel is attached to each fabric shaft a pawl attached to a drive pulley engages, when the jig is confirmed.
  • a traction device e.g. one Rope, which is attached to the drive pulleys it is looped that when the traction means is shortened the Drive pulleys are moved in opposite directions.
  • the axis is one with the material wave Couplable drive shaft for material shaft and Clamping device are independent of each other.
  • axle and the drive wheel Freewheel hub arranged so that the drive wheel against the Clamping direction freely on the axis or the fabric shaft in The clamping direction can rotate freely in the driving wheel. This makes it easier handling the jig by the traction device not out of engagement for each winding of the embroidery base the driving wheel is to be brought, or the traction means only withdrawn a small distance against the tensioning direction can then be used again from this position Rotate the fabric shaft in the tensioning direction.
  • the traction means can be a rope, a chain or a Toothed belt and the drive wheel corresponding to a roller Sprocket or a toothed belt wheel.
  • the traction means advantageously has a lot which Can engage with the driving wheel, and a batch, which transmit practically no torque to the driving wheel can.
  • a chain expediently sometimes at least one game with, for example triple chain, with the sprocket two sprockets and has or has a sliding surface between them
  • Timing belt expediently a toothed area and an area without teeth, which over a toothed belt wheel can slide.
  • a spring is preferably provided, which Traction device against the tension force of the tensioner against one Position pushes or pulls in which with the drive wheel Interventionable part of the traction mechanism out of engagement with the driving wheel.
  • Traction device By extending the traction device can Traction means and driving wheel are uncoupled. Either spread a spring pulls the traction mechanism away from the driving wheel so that it Driving wheel is uncoupled, or on the traction device against the Spring pulling the tension pulls the engaging engagement Area of the traction device from the driving wheel as soon as the traction device is released with the tensioner.
  • Each wave is expediently at least assigned a clamping device on one side, for long ones Material waves preferably one on each side.
  • Material waves preferably one on each side.
  • For wrapping the fabric is proven on one side of the gate Manner with the clamping devices one coupling each connected, via which the material shaft from a drive driven and controlled the rotation of the fabric shaft can.
  • the driver shaft is advantageous by one to it parallel axis swiveling and in an adjustable Position ascertainable. So the fabric position can be adjusted be by the position of the axis of the jig and thus the position of the fabric wave or the embroidery base corrected for alignment with the needles.
  • an embroidery machine gate is shown with one stretched between two material waves 11 and 13 Embroidery base 15.
  • the material waves 11, 13 extend from a side part 17 to a second side part 19 and rotatably supported in these.
  • the storage of the material waves 11, 13 is carried out with two driver shafts 21, 23 each.
  • On each Driving shaft 21, 23 is a driving wheel 25 for driving the Driver shaft 21, 23 and the fabric shaft 11, 13.
  • To do that Driving wheel 25 is a chain 27 around, which with a Spanner 29,29 'is connected. Will with the tensioner 29.29 ' Chain 27 shortened, i.e. via the upper drive wheel 25 guided and the guided over the lower drive wheel 25 chain 27 contracted, the drive wheels 25 are rotated. This however only if there is an engaging part 28 of the chain 27 is wrapped around the drive wheel 25 and with this in Intervention is.
  • the Embroidery base 15 serves a motor 31.
  • the motor drives one Chain 33 and this on each drive shaft 23 a sprocket 35.
  • the sprockets 35 can thanks to compressed air couplings 37 in Be engaged with the driver shafts 23.
  • By the direction of rotation of the motor 31 and pressurizing it one or both couplings 37 are the material waves 11, 13 individually or together in one or the other direction rotatable.
  • the tensioning device on the left side part 17 differs from the clamping device on the right Side part 19 in that it has no couplings 37, since the drive for winding only on the right side part 19 he follows.
  • right side part 19 is a tensioner Air motor 41 shown, while on the left side part 17 shows another embodiment of a tensioner is, namely a simple, manually operated tensioner 29 '.
  • No motor is provided in the tensioner 29 '.
  • a gear 51 and a ratchet 53 is arranged on a rotatable by hand with a lever not shown Shaft 49.
  • the shaft 49 is supported in two jaws 55. Between Jaw 55, the gear 51 is arranged, which is engaged with a rack 57.
  • the rack 57 is in one pipe 59 connected to the jaws 55.
  • a pawl 61 is arranged, which with the ratchet wheel 53 cooperates. By turning the shaft to the right, the rack 57 moves into the tube 59 while the Pawl 61 slides over the teeth of ratchet wheel 53.
  • the clamping device is on the left side part 17 in FIG. 1 is shown in simplified form in a side view.
  • the side part 17 is drawn cut.
  • the chains 27 are drawn in two positions: each at the ends 47.65 of the chains 27 is tensioned with I and with II the resolved position.
  • the chains 27 are on the one hand Tensioner 29, on the other hand attached to a spring 63.
  • the Spring 63 is in turn at its other end on the side part 17 moored.
  • the chain 27 can be engaged Lot 28 and the spring 63 shown.
  • the chain 27 is made consisting of two parts: firstly the 28 'chain, which is not led over a sprocket, but over a sliding surface between two sprockets on the sprocket 25, and second, the triplex chain 28, which with the Chain axes 67 and the rollers arranged thereon in two Engage sprockets on sprocket 25.
  • FIG 4 shows the individual components in the Area of suspension of the driver shaft 21 and Sprocket 25.
  • the lower drive shaft 21 is shown on left side part 17 of Figure 1.
  • Two axes, namely the Driver shaft 21 and the pivot axis 69 sit in two Holding jaws 71.73.
  • the driver shaft 21 is with bearings 75 stored in it while the pivot axis with screws 77 in the holding jaws 71, 73 clamped and in bores 79 in Side part 17 is introduced. This is about the pivot axis 69 whole part can be swiveled to the position of the embroidery base to adjust with respect to the needles, i.e. perpendicular to To adjust the fabric surface. This is done with a screw 81, which with a fork 83 in the holding jaw 73 interacts and is adjustable.
  • the chain wheel 25 On the drive shaft 21 sits on two freewheel hubs 85 the chain wheel 25. This has a central region 87 on which the pull chain 28 'slides, and two Sprockets 89 left and right of which the triplex chain 28 can snap into place. So that the freewheel hubs 85 a can transmit sufficiently large torque, the Driver shaft 21 in the area 91, in which it with the Freewheel hubs 85 cooperates, a suitable diameter on. In the area of the bearings and in the head area 93, which one fits positively with the fabric shaft, the Driver shaft 21 the same dimensions as known Drive shafts.
  • the sprocket 25 On the driver shafts 23 (see figure 1) on the right side of the gate is the sprocket 25 not laterally as with the drive shafts 21 with clamping rings 95 held, but the driver shaft 23 is on the corresponding point cut off, with the clutch 37 a coupling shaft is attached to the driving shaft 23.
  • This clutch 37 gives the sprocket 25 the corresponding Stop.
  • the clutch shaft has holes for the Compressed air supply to clutch 37.
  • an embroidery base 15 Before tensioning an embroidery base 15 (see in The following figures 1 and 2) must be wound up.
  • the fabric web 15 is around the upper 11 and lower 13 Placed on the lower shaft 13 wound up.
  • the Clutch disc and the bolt on it Coupling housing and the drive shaft 23 and thus on the Material wave 13 is transmitted. So the stuff with the Motor 31 wound on the fabric shaft 13.
  • For winding up of embroidered fabric on the fabric shaft 11 becomes the top Coupling 37 coupled for the fabric shaft 11 and with the Motor 31 rotated the fabric shaft 11.
  • the Tensioning device of the fabric shaft 13 does not hold it back.
  • the traction means 27 and corresponding ones are analogous Driving wheels 25 can also be realized with a toothed belt and a toothed belt wheel or a rope and a roller, without the Deviate inventive ideas.
  • a spring 97 between Driving wheel 25 and traction means 27 may be arranged, which the Traction means 27 lifts off the driving wheel 25 as soon as the train on the Traction means 27 is minimized.
  • FIG Execution variant drawn A possible one is shown in FIG Execution variant drawn.
  • a Tensioning device for tensioning the embroidery base 15 between the Material waves 11, 13 of an embroidery machine gate a sprocket 25, over which a chain 27 is guided.
  • the chain engages a triplex chain section 28 into two sprockets, whereby the material waves 11, 13 by further shortening the Chain can be rotated.
  • a spring 63 pulls the chain 27 back.
  • the triplex chain section 28 disengages from the Sprocket 25.
  • this can the sprocket 25 slide without transmitting torque can. Therefore, in such a position II of the chain 27 over the same shaft 21.23 the fabric shaft 11.13 rotated and the fabric can be wound up or unwound over which the fabric is also tensioned without the tension and winding function hinder each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Treatment Of Fiber Materials (AREA)
EP98100199A 1998-01-08 1998-01-08 Dispositif pour tendre le tissu placé sur les rouleaux dans une machine à broder Expired - Lifetime EP0950746B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP98100199A EP0950746B1 (fr) 1998-01-08 1998-01-08 Dispositif pour tendre le tissu placé sur les rouleaux dans une machine à broder
AT98100199T ATE191022T1 (de) 1998-01-08 1998-01-08 Spannvorrichtung zum spannen einer um die stoffwellen einer stickmaschine gelegten stoffbahn
DE59800107T DE59800107D1 (de) 1998-01-08 1998-01-08 Spannvorrichtung zum Spannen einer um die Stoffwellen einer Stickmaschine gelegten Stoffbahn
TR1999/00022A TR199900022A2 (xx) 1998-01-08 1999-01-07 Bir nak�� makinesinin kuma� toplar� etraf�na konulmu� bir kuma� yolunun gerilmesine yarayan bir germe ayg�t�

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98100199A EP0950746B1 (fr) 1998-01-08 1998-01-08 Dispositif pour tendre le tissu placé sur les rouleaux dans une machine à broder

Publications (2)

Publication Number Publication Date
EP0950746A1 true EP0950746A1 (fr) 1999-10-20
EP0950746B1 EP0950746B1 (fr) 2000-03-22

Family

ID=8231242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98100199A Expired - Lifetime EP0950746B1 (fr) 1998-01-08 1998-01-08 Dispositif pour tendre le tissu placé sur les rouleaux dans une machine à broder

Country Status (4)

Country Link
EP (1) EP0950746B1 (fr)
AT (1) ATE191022T1 (fr)
DE (1) DE59800107D1 (fr)
TR (1) TR199900022A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2314746A1 (fr) * 2009-10-26 2011-04-27 Lässer AG Machine à broder à têtes multiples et aiguilles multiples et cadre de tension lui étant destinée
EP2573245A1 (fr) 2011-09-21 2013-03-27 Lässer AG Machine à broder avec dispositif de tension du matériau
CN108691106A (zh) * 2018-08-06 2018-10-23 洛阳雀金绣文化创意有限公司 一种雀金绣机绣长卷智能加手工刺绣装置的使用方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111206352B (zh) * 2020-02-07 2020-12-08 涡阳县欣芯服饰有限公司 一种具有织物拉紧功能的刺绣机的工作方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0148127A2 (fr) * 1983-12-21 1985-07-10 Perfekta Maschinenbau Ferd. Kleger AG Dispositif de positionnement et de mise sous tension de l'ouvrage sur une machine à broder
DE3720907A1 (de) * 1986-09-11 1988-03-24 Saurer Ag Adolph Schiffchen-stickmaschine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0148127A2 (fr) * 1983-12-21 1985-07-10 Perfekta Maschinenbau Ferd. Kleger AG Dispositif de positionnement et de mise sous tension de l'ouvrage sur une machine à broder
DE3720907A1 (de) * 1986-09-11 1988-03-24 Saurer Ag Adolph Schiffchen-stickmaschine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2314746A1 (fr) * 2009-10-26 2011-04-27 Lässer AG Machine à broder à têtes multiples et aiguilles multiples et cadre de tension lui étant destinée
CH702068A1 (de) * 2009-10-26 2011-04-29 Laesser Ag Mehrkopf-Mehrnadel-Stickmaschine und Spannrahmen dafür.
CN102051767A (zh) * 2009-10-26 2011-05-11 拉瑟股份公司 多头刺绣机及其所用的拉幅框
CN102051767B (zh) * 2009-10-26 2015-03-11 拉瑟股份公司 多头刺绣机及其所用的拉幅框
EP2573245A1 (fr) 2011-09-21 2013-03-27 Lässer AG Machine à broder avec dispositif de tension du matériau
CN103015078A (zh) * 2011-09-21 2013-04-03 拉瑟股份公司 具有织物拉紧装置的刺绣机
CN108691106A (zh) * 2018-08-06 2018-10-23 洛阳雀金绣文化创意有限公司 一种雀金绣机绣长卷智能加手工刺绣装置的使用方法

Also Published As

Publication number Publication date
ATE191022T1 (de) 2000-04-15
DE59800107D1 (de) 2000-04-27
EP0950746B1 (fr) 2000-03-22
TR199900022A3 (tr) 1999-07-21
TR199900022A2 (xx) 1999-07-21

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