EP3643828A2 - An embroidery machine gate and method for rolling an embroidery base and a system for clamping the material for the embroidery base on an embroidery machine gate - Google Patents
An embroidery machine gate and method for rolling an embroidery base and a system for clamping the material for the embroidery base on an embroidery machine gate Download PDFInfo
- Publication number
- EP3643828A2 EP3643828A2 EP19197830.3A EP19197830A EP3643828A2 EP 3643828 A2 EP3643828 A2 EP 3643828A2 EP 19197830 A EP19197830 A EP 19197830A EP 3643828 A2 EP3643828 A2 EP 3643828A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- embroidery
- base
- embroidery base
- needles
- frame
- 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
Links
- 238000000034 method Methods 0.000 title claims description 33
- 239000000463 material Substances 0.000 title description 12
- 238000005096 rolling process Methods 0.000 title description 2
- 238000004804 winding Methods 0.000 claims abstract description 54
- 240000000136 Scabiosa atropurpurea Species 0.000 claims description 36
- 241000003834 Scabiosa Species 0.000 claims description 28
- 239000004744 fabric Substances 0.000 claims description 16
- 239000004753 textile Substances 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 15
- 230000007704 transition Effects 0.000 description 5
- 230000008961 swelling Effects 0.000 description 4
- 238000009956 embroidering Methods 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
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 invention relates to a method for corrugating an embroidery base between two winding shafts arranged in parallel on a large embroidery machine according to the preamble of patent claim 1.
- the invention further relates to a system for clamping the material for the embroidery base according to the preamble of patent claim 11.
- the object of the invention is also a Embroidery machine gate according to the preamble of patent claim 16.
- gate arrangements are from the EP 0 919 657 and the EP 0 690 164 B1 known in which the embroidery base is stretched or corrugated between a lower and an upper shaft and after embroidery a first embroiderable surface spanned between the shafts, the embroidery base is rolled up from one shaft to the other or is corrugated so that the embroidery floor unwound from the lower shaft adjacent to the area already embroidered comes to lie in the embroiderable area between the waves.
- the embroidery base is advantageously corrugated several times from one wave to the other, thereby balancing and aligning the tension and alignment of the weft and warp threads. So that the embroidery base is evenly stretched across its entire width at the start of embroidery, it is fastened by hand on both sides to a side tensioning bar and then the side tensioning bars are stretched horizontally across the tensioning direction between the shafts, also horizontally in the warp direction, and finally through the waves, in a vertical direction Direction, ie retensioned in the weft direction.
- the embroidery base In the case of embroidery machines with a gate, which allows the embroidery base to be shifted by winding the embroidered area onto the upper shaft and unwinding unembroidered embroidery base from the lower shaft, the embroidery base is then released from the side tensioning strips for a displacement of the embroidery base, then the displacement, i.e. the undulation to finally hang the embroidery base back into the side tension bars. It is hardly possible to adjust the lateral tension after the waves again according to the tension before the shift to manufacture. As a result, there are shifts in the embroidery pattern where the one embroidery stage ends and the subsequent embroidery stage begins, especially in the lateral areas of the embroidery base, which affect the quality of the entire embroidery.
- the EP 0 919 657 B1 discloses a method for shifting, also called waves, one with two side tension bars laterally tensioned with the embroidery base that can be moved translationally in the gate on an embroidery machine gate with an upper and a lower winding shaft, in which method the embroidery base that is corrugated on the winding shafts is stretched flat between them and is shifted by waves from one winding shaft to the other relative to the creel, while it is suspended in spikes of the side tension bars, so that at least part of the embroidery base remains tensioned during the shift by the side tension bars that are translationally shiftable in the creel, so that after the shift in this part to have the same tension as before the shift.
- the embroidery base is lifted from the thorns that engage in the embroidery base with a surface of a release device that runs obliquely to the embroidery base level, and is thereby detached from the side tension bars.
- at least part of the embroidery base remains during the displacement through the side tension bars excited to have the same tension in this part after the displacement as before the displacement.
- the area adjoining the transition between the stages expediently remains taut, so that the tension in the embroidery bottom remains constant during the transition and the transition therefore invisibly fits into the embroidery pattern. It is imperative that the embroidery base is detached from the side tension bars over a length corresponding to the displacement in order to be able to wind it on the winding shaft.
- the part of the embroidery base that is not tensioned by the side tensioning strips is advantageously re-tensioned in accordance with the tension of the part that has remained tensioned on the side tensioning strips, for example by manually hanging the embroidery base into the mandrels of the side tensioning strips, taking into account the thread path of the vertical weft thread.
- the embroidery base can be tensioned by hand or with a tensioning device activated by the displacement.
- the embroidery base is held in place during the movement of the gate in the vertical direction, so that the embroidery base can stand still relative to the needles. This can be achieved with the fabric pressers, which fix the embroidery base relative to the needles.
- the side tensioning strips are advantageously translationally movable in the gate, so that they also move when the laterally tensioned embroidery base is moved and at least a part of the embroidery base remains tensioned during and after the displacement.
- the side tension bars are divided into segments, which can be detached individually from the embroidery base or can be connected to the embroidery base, so that they can be detached segment by segment from the embroidery base, so that the side tension bar does not come into conflict with the rolling shaft.
- the segments of the side tensioning strip are expediently fastened to a chain.
- the segments can be moved with one another in a non-linear movement, so that the segments detached from the embroidery base can be removed from the embroidery base.
- the chain forms a closed loop around two deflection wheels so that the segments are guided in a circular path away from the edge of the embroidery base.
- the embroidery machine creel has release devices in order to release the embroidery base from the side tension bars. As a result, loosening by hand can be avoided and at the same time only the area of the embroidery base is loosened from the side tension bars, which must necessarily be loosened before winding up.
- the release devices are arranged stationary on the gate and the side tension bars are movable relative to the release devices, so that the stick base and the side tension bars are released from each other when the embroidery base is moved in the gate.
- the side tension bars have a variety of spikes for hanging the embroidery base. With these spikes, the stick base is held reliably in the tried and tested manner.
- the segment-like side tension bars are connected to the chain and are guided straight through the rollers of the chain in a guide rail on the embroidery bottom side. The guide ensures constant tension even when the side tensioning bar is moved. With this from the EP 0 919 657 In the known method, the chain with its segments which are suspended in the embroidery base is pulled along with the waves from the embroidery base.
- EP 0 690 164 B1 suggested the mass transfer to control the embroidery field on the winding shafts so precisely that the fabric can be wound onto the winding shafts under controlled tensile force, with a controlled vertical movement of the embroidery frame taking place at the same time.
- the embroidery base on the embroidery needles be scanned in a touching or contactless manner with the aid of an encoder which detects a displacement of the embroidery base in the vertical direction and feeds this signal as a correction signal to a control unit which controls the material drive of the winding shafts in such a way that compared to the embroidery needles, the embroidery base relatively no longer moves during vertical movement of the embroidery frame.
- a control unit which controls the material drive of the winding shafts in such a way that compared to the embroidery needles, the embroidery base relatively no longer moves during vertical movement of the embroidery frame.
- the object of the invention is therefore to provide a method for corrugating an embroidery base and an embroidery machine creel with which, on the one hand, the lateral tension during the displacement of the embroidery base within the embroidery machine gate of the embroidery base can be kept constant and, in particular, the transition area from one embroidery stage to the next remains invisible.
- Another object of the invention is to provide a system for clamping a new unembroidered material for the embroidery floor on an embroidery machine gate after the embroidery base has been completely finished.
- Another object of the invention is to provide an embroidery machine gate in which the material can be stretched continuously onto the embroidery machine gate during the undulation.
- This object is achieved by a method for corrugating an embroidery base according to the features of patent claim 1.
- the object is further achieved by a system for clamping the material in accordance with the features of patent claim 11 and by an embroidery machine gate in accordance with the features of patent claim 16.
- the area adjacent to the transition between the embroidery stages is always kept taut and in addition there is a shift of the embroidery base in vertical direction, ie in the direction of transport of the embroidery base on the upper winding shaft without the use of feelers and without a complex regulation for driving the pincushion of the side tension rod and the winding shaft.
- at least the two opposing needle cushions located at the level of the needles of the embroidery machine are clamped with respect to the frame of the embroidery machine.
- the embroidery base By engaging several pincushions on each side of the embroidery base during the corrugation, the embroidery base can be held taut over a greater length in the vertical direction, so that there is also no inclination to the weft and warp threads, that is to say an inclined distortion. Clamping at least one of the pin cushions on each side of the embroidery area by means of clamping means which are attached to the embroidery machine frame ensures that the clamped embroidery floor area cannot move in the vertical direction. Embroidery needles inserted during the corrugation are not bent as a result and therefore cannot break. The continuation of the embroidery pattern takes place exactly in the tenths of a millimeter range on the Where the previous embroidery motif ended.
- the means for holding the pincushion during the corrugation are fastened to the embroidery machine frame. This slightly increases the moving mass of the gate. It is also ensured that the tension on the embroidery base is not changed in the horizontal direction and, in particular, that the clamped embroidery area cannot be moved in the vertical direction.
- a particularly advantageous embodiment of the invention enables the needling of the fabric onto the pincushion to be carried out without any manual intervention, that is to say completely automatically, that is to say without manual intervention, as soon as the edge of the fabric from the lower fabric shaft is removed Embroidery area is approaching.
- the needling is done very precisely and extremely evenly.
- the synchronous outward pushing of the edge areas of the fed fabric or embroidery base ensures that the warp threads of the fed fabric are inserted into the new embroidery area without lateral displacements.
- the construction of the embroidery machine gate and the holding and clamping elements is simple and no drive is required to precisely hold the stretched area of the embroidery base with the last stitches before the start of the corrugation in order to resume embroidery of the stitch pattern after the corrugation can.
- extremely low forces act on the held area of the embroidery base during the corrugation. Due to the arrangement of the holding and clamping elements and their drives on the machine frame, for the pincushions on the stenter, the mass of the gate is not increased by this.
- the means for laterally tensioning or pushing the incoming fabric outwards are fastened to the struts of the gate and are therefore always exactly in line with the tensioning frame when the fabric is needled.
- the tensioning frame of a large embroidery machine comprises two spaced, vertically extending frame parts 3 and 5, between which an upper winding shaft 7 and a lower winding shaft 9 are rotatably and drivably mounted.
- the drives of the two winding shafts 7 and 9 are not shown.
- the two winding shafts 7 and 9 carry an embroidery base 11, which is held flat tensioned between the two winding shafts 7, 9.
- the connection between the upper edge of the embroidery base 11, whose warp threads run horizontally and whose weft threads run vertically, with the winding shaft 7 and its lower edge with the winding shaft 9 takes place in a manner known from the prior art. This is not described in more detail here.
- the two frame parts 3 and 5 are guided in the vertical direction (Y direction) on vertically lying guide rails 13.
- the guide rails 13 and that gates 1 attached to them can in turn be moved in the horizontal direction by means of racks 15.
- the displacement in the horizontal direction takes place via pinions 17, which are driven by a servo motor 19.
- the frame parts 3, 5 are displaceably mounted in the vertical direction with a toothed rack 21, which is displaceable by a second toothed pinion 23, driven by a second servo motor 25.
- two sprockets 27 are fastened to the two frame parts 3 and 5 of the gate 1 on supports not visible in the figures, via which endless chains 29 are arranged all around.
- Pin cushions 33 are placed on the chain links 31 of the chains 29.
- Thorns 63 on the pin cushion 33 are directed in the direction of the embroidery base 11 and consequently only in the Figures 13 to 15 visible.
- the spikes 63 are preferably not perpendicular to the plane of the embroidery base 11, but inclined to it.
- the inclined arrangement of the mandrels 63 on the pin cushion 33 enables the stick base 11 to be held securely when the pin cushion 33 is displaced for undulating or tensioning the stick base 11. The higher the tension, the deeper the thorns 63 engage in the embroidery base ( Fig. 15 ).
- Flag-shaped guide plates 35 are formed on the back of the pin cushions 33.
- a holding device 37 is arranged, which is fixed independently of the gate 1 directly on the machine frame 41 of the embroidery machine and is guided horizontally displaceably on a rail 39 ( Figures 5 and 11 ).
- the holding device 37 in Fig. 11 comprises a boom 43 which is arranged horizontally displaceably on the rail 39.
- the boom 43 carries a holding plate 45, on which a pair of rollers 47 is attached to eccentric bolts 49, the eccentric bolts 49 of the two rollers of the pair of rollers 47 being arranged at a distance from one another.
- the pair of rollers 47 is rotatably mounted on the horizontally arranged, perpendicular to the plate 45 eccentric pin 49.
- the two rollers of the pair of rollers 47 engage from both sides without play on a vertically arranged guide rail 51 or roll without play on the surfaces thereof.
- the Guide rail 51 is arranged on a chain guide 75 for the chain 29.
- a clamping and holding element 53 is fastened to the holding plate 45.
- the clamping and holding element 53 comprises two clamping jaws 55 which are pivotably mounted on a shaft 57 which is located vertically and is fastened to the holding plate 45.
- the clamping jaws 55 are carried by lever arms 59, the ends of which are connected to a pneumatic drive 61.
- the guide plates 35 of the pin cushions 33 can be moved without contact when the clamping jaws 55 are open (cf. Figures 5 and 11 ). In the clamped position according to Figure 11 press the jaws 55 against the guide plates 35 and hold them firmly.
- two or more chain links 31 with their guide plates 35 are clamped simultaneously by the clamping jaws 55 and held stationary with respect to the machine frame 41.
- the common pivot shaft 57 for the clamping jaws 55 allows them to align themselves automatically on the plates 35 during clamping and consequently press against the guide plates 35 with uniform forces.
- each pincushion 33 is fastened to a chain link 31 or to bolts connecting the chain links 31 by suitable means, for example screws or rivets 65.
- the pin cushion 33 consists of a multi-bent sheet metal part, an injection molded part or a suitable other material.
- a first section 67 of the pin cushion 33 lies parallel to the chain link 31.
- a second section 69 adjoins this, for example, at an angle of 45 °. This is followed by a third section 71 lying parallel to the first section 67.
- the spikes 63 are fastened to a fourth section 73 which is inclined to the third section 71.
- the flag-shaped plate 35 is also formed on the third section 71 or attached. In the exemplary embodiment shown, the plate 35 is formed from the third section 71 by a stamping / bending process. The plate 35 can also be welded to the third section 71, for example, or fastened in some other way.
- the pincushion 33 can be produced very inexpensively by the punching / bending process and, in addition, by using an area of the section 71 as a flag 35, weight can be saved, which has a positive effect on the total mass of the chain 29 which is associated with the gate 1 when embroidering must be moved, affects.
- the thorns 63 which are inclined at an acute angle to the third section 71, hold the embroidery base 11 securely after the tensioning, since the thorns 63 continue into the embroidery base 11 when tensioning, ie when the pincushion 33 is moved with the chain 29 be pushed in and through it.
- the waves occur after the completion of embroidery patterns, if these essentially cover the area between the two winding shafts 7, 9 as follows:
- the lower end of the first embroidery area or the connection for the next stage is determined by the needles 27 which either stabbed in the embroidery base 11 or retracted in front of the embroidery base 11.
- the machine movements have stopped.
- the clamping jaws 55 are closed, between which those guide plates 35 of the pin cushions 33 are located which hold the embroidery base 11 tensioned on both sides outside the last stitches of the embroidery patterns and fix the guide plates 35 lying between the clamping jaws 55 on the chain links 31 with respect to the Frame 41 of the embroidery machine.
- the needle cushions 33 By clamping the needle cushions 33 to the side of the needles 27, the area of the embroidery base 11 that is held taut by the connected needle cushions 33 can no longer move in the vertical direction.
- the gate 1 with the winding shafts 7 and 9 attached to it is guided downward by the servo motor 25.
- the sprockets 27 with the chain 29 and the chain guide 75, which are attached to the gate 1, also go down.
- the two winding shafts 7 and 9 are driven in such a way that the embroidered embroidery base 11 is wound on the upper winding shaft 7 and the embroidery base region which has not yet been embroidered is unwound from the lower winding shaft 9.
- the chain wheels 27 are set in rotation by the guide plates 35, pin cushions 33, chain links 29, which are held clamped, and, on the other hand, by the downward movement of the chain wheels 27.
- the sprockets 27 on the left side of the embroidery base 11 rotate counterclockwise, those on the right side clockwise.
- the chain links 31 with the pin cushions 33 between the sprockets 27, on which the embroidery base 11 is held taut do not move analogously to the plates of a caterpillar that has been hit and which lie on the ground.
- the chain links 31 located at the top are individually led away from the edge of the embroidery base 11 around the chain wheels 27 located at the top.
- the embroidery base 11 is released from the spikes 63 on the pin cushion 33.
- the embroidery base 11 is detached from the spikes 63 of the pincushion 33 by suitably arranged release agents, which are not described in detail here.
- the clamping and holding elements 53 or their clamping jaws 55 can be opened.
- the embroidery designs which were no longer continued at the end of the previous first embroidery process, can now be embroidered exactly and without deviation or offset.
- the clamping jaws 55 remain open and the guide plates 35 on the chain links 31 can slide contactlessly between the clamping jaws 55 and do not hinder them from driving past when the embroidery base 11 moves upwards relative to the clamping jaws 55 with the gate 1. This is ensured by the pair of rollers 47.
- the clamping jaws 55 can again be closed, because then the situation has arisen again, as in the Figures 1 and 2nd has been shown and described.
- a needle device 77 is described with which the fabric unwound from the lower winding shaft 9 and entering the embroidery area or embroidery base 11 is grasped at its edges, pulled outwards and needled onto the pincushion 33.
- needle devices 77 are arranged on the two vertically running frame parts of the gate 1. These each include a support plate 79 on which a drive motor 81 is pivotally mounted about a vertical axis A.
- the drive motor 81 carries on its output shaft a cylindrical roller 83 with an elastic jacket surface.
- the roller 83 has an abrasion-resistant surface made of natural rubber, at least over a partial region, for example made of para-rubber or a similar, optimal material for pushing the embroidery base with other material.
- the roller 83 can also be designed as a brush roller with radially arranged bristles.
- the bristle ends arranged in a cylindrical surface form a rough surface.
- the drive motor 81 and the roller 83 are preferably fastened on two spaced-apart upper and lower swivel plates 85.
- the roller 83 is supported at both ends on the swivel plates 85.
- a pressure wheel 89 with an essentially horizontal axis of rotation is freely rotatably mounted on the swivel plates 85 on a cantilever 87.
- the pressure wheel 89 is mounted on an axle stub 91 which is fastened to the boom 87 perpendicularly to the latter.
- a guide plate 93 is configured with a partially curved edge. Its vertical aligned edge region 95 lies parallel to the needles 33 ′ of the needle cushions 33.
- a swivel lever 97 is also fastened, with which the two swivel plates 85 together with the drive motor 81 and roller 83 as well as the pressure wheel 89 and guide plate 93 from a working position ( Figure 16 ) in a rest position ( Figure 17 ) or a position for inserting the embroidery base is pivotable.
- a spring assembly 99 is clamped between the support plate 79 and the swivel plates 85.
- the spring assembly 99 can comprise, for example, one or two coil springs.
- the spring assembly 99 enables the needle device in the working position according to FIG Figure 16 is held and on the other hand, the working position is not rigid, but the pressure of the pressure wheel 89 on the pincushion 33 is resilient. This is to prevent the pressure wheel 89 from lifting off the needles 33 'in the event of problems with needling on the edge region of the embroidery base 11 and when using materials of different thicknesses.
- the pressure wheel 89 is in the working position and its teeth engage between the needles on the pincushion 33.
- the pressure wheel 89 engages in the needles 33 'of the pincushion 33 after they line up on a chain guide 75, not shown or not visible (arrow p ) are performed.
- the embroidery base 11 is unwound from the lower winding shaft 9 and onto the upper winding shaft (in Figure 19 not shown) wound up.
- the roller 83 which is driven by the drive motor 81, the edge region 11 'of the embroidery base 11 is pulled to the right in the direction of the arrow S, ie the embroidery base is stretched over the tips of the needles of the needle cushions 33 and immediately afterwards by the pressure wheel 89 in the needles pushed in.
- the edge region 11' is guided by the guide plate 93 (clearly visible in FIG Figure 21 ), which presses the edge area 11 'after crossing the needles of the pin cushions 33 against the needleless area of the pin cushions 33 or a frame area and holds the edge area down.
- the needling of the embroidery base 11 takes place in that the edge regions 11 'of the embroidery base 11 are pulled outwards away from the central embroidery region with the rollers 83.
- the guide plates 93 are guided behind the needles onto the needleless areas of the needle cushions 33 and are pressed securely into the needles of the needle cushions 33 by the pressure wheels 89.
- the tension rods ie the pin cushions 33, can be guided outwards and the clamped embroidery base 11 can thus be tensioned in the horizontal direction and by the winding shafts in the vertical direction.
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- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
Beim Wellen des Stickbodens (11) von Wickelwelle zu Wickelwelle (7,9) wird der Stickboden (11) seitlich der Sticknadeln (26) festgeklemmt und bezüglich dem Maschinengestell der Stickmaschine unverschiebbar gehalten. Beim Wellen des Stickbodens (11) und gleichzeitigem Verschieben des Gatters (1) verbleibt der zuletzt gestickte Abschnitt eines Stickbilds unverschiebbar gehalten, sodass bei der Weiterführung des Stickmusters keine Verschiebung zwischen dem bereits gesticktem Bereich und dem nachfolgenden Bereich eintreten kann.When the embroidery base (11) waves from winding shaft to winding shaft (7, 9), the embroidery base (11) is clamped to the side of the embroidery needles (26) and held immovably with respect to the machine frame of the embroidery machine. When the embroidery base (11) is waved and the gate (1) is moved at the same time, the last embroidered section of an embroidery image remains immovable, so that when the embroidery pattern is continued, there can be no shift between the already embroidered area and the subsequent area.
Description
Gegenstand der Erfindung ist ein Verfahren zum Wellen eines Stickbodens zwischen zwei parallel angeordneten Wickelwellen an einer Grossstickmaschine gemäss Oberbegriff des Patentanspruchs 1. Gegenstand der Erfindung ist weiter ein System zum Einspannen des Stoffs für den Stickboden gemäss Oberbegriff des Patentanspruchs 11. Gegenstand der Erfindung ist weiter ein Stickmaschinengatter gemäss Oberbegriff des Patentanspruchs 16.The invention relates to a method for corrugating an embroidery base between two winding shafts arranged in parallel on a large embroidery machine according to the preamble of
Damit Stoffbahnen als Stickboden bestickt werden können, die breiter sind als es die Höhe eines Stickmaschinengatters einer Grossstickmaschine zulässt, sind Gatteranordnungen aus der
Bei Stickmaschinen mit einem Gatter, welches eine Verschiebung des Stickbodens durch Aufwickeln des bestickten Bereichs auf die obere Welle und Abwickeln von unbesticktem Stickboden ab der unteren Welle zulässt, wird für eine Verschiebung des Stickbodens dieser von den Seitenspannleisten gelöst, dann die Verschiebung, d.h. das Wellen vorgenommen, um schliesslich den Stickboden erneut in den Seitenspannleisten einzuhängen. Dabei ist es kaum möglich, die seitliche Spannung nach dem Wellen wieder entsprechend der Spannung vor der Verschiebung herzustellen. Dadurch gibt es dort, wo die eine Sticketappe endet und die anschliessende Sticketappe neu beginnt, besonders in den seitlichen Bereichen des Stickbodens Verschiebungen im Stickmuster, welche die Qualität der gesamten Stickerei beeinträchtigen.In the case of embroidery machines with a gate, which allows the embroidery base to be shifted by winding the embroidered area onto the upper shaft and unwinding unembroidered embroidery base from the lower shaft, the embroidery base is then released from the side tensioning strips for a displacement of the embroidery base, then the displacement, i.e. the undulation to finally hang the embroidery base back into the side tension bars. It is hardly possible to adjust the lateral tension after the waves again according to the tension before the shift to manufacture. As a result, there are shifts in the embroidery pattern where the one embroidery stage ends and the subsequent embroidery stage begins, especially in the lateral areas of the embroidery base, which affect the quality of the entire embroidery.
Die
Bei einem Stickmaschinengatter gemäss
According to an embroidery machine creel
Dadurch kann ein Teil des Stickbodens gespannt gelassen werden. Die Löseeinrichtungen sind stationär am Gatter angeordnet und die Seitenspannleisten relativ zu den Löseeinrichtungen beweglich, so dass beim Verschieben des Stickbodens im Gatter der Stickboden und die Seitenspannleisten voneinander gelöst werden. Die Seitenspannleisten weisen eine Vielzahl von Dornen zum Einhängen des Stickbodens auf. Mit diesen Dornen wird der Stickboden in bewährter Manier zuverlässig gehalten. Die segmentartigen Seitenspannleisten sind mit der Kette verbunden und werden auf der Stickbodenseite in einer Führungsschiene durch die Rollen der Kette gerade geführt. Die Führung gewährt eine konstante Spannung auch bei der Verschiebung der Seitenspannleiste.
Bei diesem aus der
Theoretisch lässt sich mit einer solchen Vorrichtung eine Synchronisierung der Gatterbewegung mit der Verschiebung der Seitenspannstabsegmenten regeln. In der Praxis ist ein solches Vorhaben sehr aufwendig, da zusätzlich ein Geber und eine teure und schwere Servo-Achse verbaut werden müsste. Über den Geber wird die Stoffposition genau überwacht und die Motoren geregelt.This means that part of the embroidery base can be left under tension. The release devices are arranged stationary on the gate and the side tension bars are movable relative to the release devices, so that the stick base and the side tension bars are released from each other when the embroidery base is moved in the gate. The side tension bars have a variety of spikes for hanging the embroidery base. With these spikes, the stick base is held reliably in the tried and tested manner. The segment-like side tension bars are connected to the chain and are guided straight through the rollers of the chain in a guide rail on the embroidery bottom side. The guide ensures constant tension even when the side tensioning bar is moved.
With this from the
Theoretically, such a device can be used to regulate the synchronization of the gate movement with the displacement of the side tie rod segments. In practice, such a project is very complex since an encoder and an expensive and heavy servo axis would also have to be installed. The material position is precisely monitored and the motors regulated via the encoder.
Aufgabe der Erfindung ist deshalb die Schaffung eines Verfahrens zum Wellen eines Stickbodens und ein Stickmaschinengatter zu schaffen, mit welchem während dem Verschieben des Stickbodens innerhalb des Stickmaschinengatters einerseits die seitliche Spannung des Stickbodens konstant gehalten werden kann und andererseits insbesondere der Übergangsbereich von einer Sticketappe zur nächsten unsichtbar bleibt.
Eine weitere Aufgabe der Erfindung ist die Schaffung eines Systems zum Einspannen eines neuen unbestickten Stoffs für den Stickboden auf einem Stickmaschinengatter nach Abschluss der vollständig fertiggestellten Bestickung eines Stickgrunds.
Eine weitere Aufgabe der Erfindung ist die Schaffung eines Stickmaschinengatters, bei welchem der Stoff beim Wellen kontinuierlich auf das Stickmaschinengatter aufgespannt werden kann. Gelöst wird diese Aufgabe durch ein Verfahren zum Wellen eines Stickbodens gemäss den Merkmalen des Patentanspruchs 1.
Gelöst wird die Aufgabe weiter durch ein System zum Einspannen des Stoffs gemäss den Merkmalen des Patentanspruchs 11 sowie durch ein Stickmaschinengatter gemäss den Merkmalen des Patentanspruchs 16.The object of the invention is therefore to provide a method for corrugating an embroidery base and an embroidery machine creel with which, on the one hand, the lateral tension during the displacement of the embroidery base within the embroidery machine gate of the embroidery base can be kept constant and, in particular, the transition area from one embroidery stage to the next remains invisible.
Another object of the invention is to provide a system for clamping a new unembroidered material for the embroidery floor on an embroidery machine gate after the embroidery base has been completely finished.
Another object of the invention is to provide an embroidery machine gate in which the material can be stretched continuously onto the embroidery machine gate during the undulation. This object is achieved by a method for corrugating an embroidery base according to the features of
The object is further achieved by a system for clamping the material in accordance with the features of
Vorteilhafte Ausgestaltungen des Verfahrens, des Systems und des Stickmaschinengatters sind in den von den Ansprüchen 1, 11 und 16 abhängigen Ansprüchen umschrieben.Advantageous embodiments of the method, the system and the embroidery machine gate are described in the claims dependent on
Nach dem Verfahren bleibt der an dem Übergang zwischen den Sticketappen angrenzende Bereich stets gespannt gehalten und zusätzlich wird eine Verschiebung des Stickbodens in vertikaler Richtung, d.h. in Transportrichtung des Stickbodens auf die obere Wickelwelle ohne den Einsatz von Tastmittel und ohne eine aufwendige Regelung für den Antrieb der Nadelkissen des Seitenspannstabs und der Wickelwelle erreicht. Zweckmässigerweise werden während des Wellens des Stickbodens von der unteren Wickelwelle auf die obere Wickelwelle und die Verschiebung des Gatters mindestens die beiden einander gegenüberliegenden auf der Höhe der Nadeln der Stickmaschine befindlichen Nadelkissen mit Bezug auf das Gestell der Stickmaschine festgeklemmt gehalten. Dadurch erfolgt beim Wellen keine Verschiebung des Stickmusters zwischen der ersten Sticketappe und der nach dem Wellen folgenden zweiten Sticketappe. Durch den Eingriff mehrerer Nadelkissen auf jeder Seite des Stickbodens während des Wellens kann der Stickboden über eine in vertikaler Richtung grössere Länge gespannt gehalten werden, so dass auch kein geneigt zu den Schuss- und Kettfäden, also ein schräg verlaufender Verzug eintreten kann. Durch das Festklemmen mindestens eines der Nadelkissen auf jeder Seite des Stickbereichs durch Klemmmittel, welche am Stickmaschinengestell befestigt sind, wird sichergestellt, dass keine Bewegung des eingespannten Stickbodenbereiches in vertikaler Richtung erfolgen kann. Während des Wellens eingesteckte Sticknadeln werden dadurch nicht verbogen und können daher auch nicht brechen. Die Weiterführung des Stickmusters erfolgt damit exakt im Zehntelsmillimeterbereich an der Stelle, wo das vorangehende Stickmuster beendet worden ist. Durch die eingesteckt gebliebenen Sticknadeln und insbesondere auch durch die angedrückten Stoffdrückertatzen werden auch sehr empfindliche Materialien für den Stickboden wie Tüll nicht derart belastet, dass Schäden im Bereich der Nadelkissen entstehen können.
Als vorteilhaft erweist es sich, den Stickboden oberhalb des Bereichs der Nadeln von den die Spannleiste bildenden und nicht festgehaltenen Nadelkissen zu lösen und so den Stickboden faltenfrei auf die obere Wickelwelle aufzuwickeln.After the procedure, the area adjacent to the transition between the embroidery stages is always kept taut and in addition there is a shift of the embroidery base in vertical direction, ie in the direction of transport of the embroidery base on the upper winding shaft without the use of feelers and without a complex regulation for driving the pincushion of the side tension rod and the winding shaft. Expediently, during the corrugation of the embroidery base from the lower winding shaft to the upper winding shaft and the displacement of the gate, at least the two opposing needle cushions located at the level of the needles of the embroidery machine are clamped with respect to the frame of the embroidery machine. As a result, there is no shifting of the embroidery pattern between the first embroidery stage and the second embroidery stage that follows the waves during the waves. By engaging several pincushions on each side of the embroidery base during the corrugation, the embroidery base can be held taut over a greater length in the vertical direction, so that there is also no inclination to the weft and warp threads, that is to say an inclined distortion. Clamping at least one of the pin cushions on each side of the embroidery area by means of clamping means which are attached to the embroidery machine frame ensures that the clamped embroidery floor area cannot move in the vertical direction. Embroidery needles inserted during the corrugation are not bent as a result and therefore cannot break. The continuation of the embroidery pattern takes place exactly in the tenths of a millimeter range on the Where the previous embroidery motif ended. Due to the sticking embroidery needles and especially the pressed fabric paws, even very sensitive materials for the embroidery floor such as tulle are not so burdened that damage can occur in the area of the pincushions.
It has proven to be advantageous to detach the embroidery base above the area of the needles from the pin cushions that form the tensioning strip and are not held tight, and thus to wind the embroidery base onto the upper winding shaft without creases.
Die Mittel zum Festhalten der Nadelkissen während des Wellens sind am Stickmaschinengestell befestigt Dadurch wird die bewegte Masse des Gatters unwesentlich erhöht. Es wird zudem sichergestellt, dass die Spannung auf den Stickboden in horizontaler Richtung nicht verändert wird und insbesondere keine Verschiebung des festgeklemmten Stickbereichs in vertikaler Richtung erfolgen kann.The means for holding the pincushion during the corrugation are fastened to the embroidery machine frame. This slightly increases the moving mass of the gate. It is also ensured that the tension on the embroidery base is not changed in the horizontal direction and, in particular, that the clamped embroidery area cannot be moved in the vertical direction.
Eine besonders vorteilhafte Ausgestaltung der Erfindung ermöglicht es, dass das Aufnadeln des Stoffs auf die Nadelkissen ohne einen manuellen Eingriff, also völlig automatisch erfolgt, d.h. ohne manuelle Eingriffe, sobald von der unteren Stoffwelle die Kante des Stoffs sich dem Stickbereich nähert. Das Aufnadeln erfolgt sehr präzise und äusserst gleichmässig.
Das synchrone Nach-aussen-Schieben der Kantenbereiche des zugeführten Stoffs bzw. Stickbodens stellt sicher, dass die Kettfäden des zugeführten Stoffs ohne seitliche Verschiebungen in den neuen Stickbereich eingeführt werden.A particularly advantageous embodiment of the invention enables the needling of the fabric onto the pincushion to be carried out without any manual intervention, that is to say completely automatically, that is to say without manual intervention, as soon as the edge of the fabric from the lower fabric shaft is removed Embroidery area is approaching. The needling is done very precisely and extremely evenly.
The synchronous outward pushing of the edge areas of the fed fabric or embroidery base ensures that the warp threads of the fed fabric are inserted into the new embroidery area without lateral displacements.
Der Aufbau des Stickmaschinengatters und der Halte- und Klemmelemente ist einfach und es wird kein Antrieb benötigt, um beim Wellen den gespannt gehaltenen Bereich des Stickbodens mit den letzten Stichen vor Beginn des Wellens präzise festzuhalten, um nach dem Wellen das Sticken des Stichmusters wieder aufnehmen zu können. Zudem wirken äusserst geringe Kräfte auf den festgehaltenen Bereich des Stickbodens während des Wellens.
Durch die Anordnung der Halte- und Klemmelemente sowie deren Antriebe am Maschinengestell, für die Nadelkissen am Spannrahmen, wird die Masse des Gatters nicht durch diese erhöht.
Die Mittel zum seitlichen Spannen bzw. Nach-aussen-Schieben des zulaufenden Stoffs sind an den Streben des Gatters befestigt und liegen demzufolge stets exakt in Linie zu dem Spannrahmen beim Aufnadeln des Stoffs.The construction of the embroidery machine gate and the holding and clamping elements is simple and no drive is required to precisely hold the stretched area of the embroidery base with the last stitches before the start of the corrugation in order to resume embroidery of the stitch pattern after the corrugation can. In addition, extremely low forces act on the held area of the embroidery base during the corrugation.
Due to the arrangement of the holding and clamping elements and their drives on the machine frame, for the pincushions on the stenter, the mass of the gate is not increased by this.
The means for laterally tensioning or pushing the incoming fabric outwards are fastened to the struts of the gate and are therefore always exactly in line with the tensioning frame when the fabric is needled.
Anhand eines Ausführungsbeispiels wird die Erfindung unter Bezugnahme auf die Figuren beschrieben. Es zeigen:
Figur 1- eine perspektivische nadelseitige Darstellung eines Gatters einer Grossstickmaschine sowie deren Antriebselemente in X- und Y-Richtung,
- Figur 2
- eine Ansicht des Gatters gemäss
Fig. 1 mit vollständig besticktem Stickboden vor dem Wellen von vorne, Figur 3- eine Seitenansicht des Gatters und dessen Antriebselemente,
- Figur 4
- eine schematische Aufsicht auf das Gatter und dessen Antriebselemente sowie die Sticknadeln und dazwischen angeordneten Stoffdrücker,
Figur 5- ein vergrösserter perspektivischer Ausschnitt A einer Haltevorrichtung für die Nadelkissen an der Spannleiste in
Fig. 1 , Figur 6- ein vergrösserter perspektivischer Ausschnitt B der auf Kettengliedern aufgesetzten Nadelkissen,
Figur 7- eine perspektivische Darstellung des Gatters einer Grossstickmaschine sowie deren Antriebselemente für die Gatterbewegung in X- und Y-Richtung Ende des Aufwellvorgangs,
- Figur 8
- eine Ansicht des Gatters gemäss
Fig. 1 mit vollständig besticktem Stickboden nach dem Wellen am Ende des Aufwellvorgangs, Figur 9- eine Seitenansicht des Gatters und dessen Antriebselemente am Ende des Aufwellvorgangs,
Figur 10- eine Aufsicht auf das Gatter und dessen Antriebselement am Ende des Aufwellvorgangs,
Figur 11- eine vergrösserte perspektivische Darstellung des Klemmbereichs an der Spannleiste mit geschlossenem Klemmelement,
Figur 12- eine perspektivische Darstellung der Stickmaschine und deren Gestell,
Figur 13- einen perspektivisch dargestellten Ausschnitt der Spannleiste mit der Kante des eingespannten Stickbodens,
- Figur 14
- eine Frontansicht des Ausschnitts in
Fig. 13 , Figur 15- einen Querschnitt längs Linie XV-XV in
Fig. 14 , - Figur 16
- einen perspektivisch dargestellten Ausschnitt einer Aufnadelstation in Aufnadelstellung,
Figur 17- die Aufnadelstation weggeschwenkt von den Nadelkissen,
- Figur 18
- eine Seitenansicht auf die Aufnadelstation und der darunterliegenden unteren Wickelwelle,
Figur 19- eine Ansicht der Nadelstation und der darunterliegenden Umlenkung der Nadelkissen in Arbeitsstellung,
Figur 20- die
Anordnung gemäss Figur 17 in Draufsicht, Figur 21- eine Ansicht der Aufnadelstation und der darunterliegenden Umlenkung der Nadelkissen in Offenstellung beim Aufspannen eines neuen Stickbodens auf die Wickelwellen und
- Figur 22
- einen Schnitt längs Linie V-V in
.Figur 21
- Figure 1
- 2 shows a perspective needle-side representation of a gate of a large embroidery machine and its drive elements in the X and Y directions,
- Figure 2
- a view of the gate according
Fig. 1 with completely embroidered embroidery bottom before the waves from the front, - Figure 3
- a side view of the gate and its drive elements,
- Figure 4
- a schematic plan view of the gate and its drive elements as well as the embroidery needles and fabric presser arranged in between,
- Figure 5
- an enlarged perspective section A of a holding device for the pincushion on the tensioning strip in
Fig. 1 , - Figure 6
- 2 shows an enlarged perspective section B of the pin cushions placed on chain links,
- Figure 7
- 1 shows a perspective view of the gate of a large embroidery machine and its drive elements for the gate movement in the X and Y directions at the end of the swelling process,
- Figure 8
- a view of the gate according
Fig. 1 with completely embroidered embroidery bottom after the waves at the end of the swelling process, - Figure 9
- a side view of the gate and its drive elements at the end of the swelling process,
- Figure 10
- a supervision of the creel and its drive element at the end of the swelling process,
- Figure 11
- 2 shows an enlarged perspective view of the clamping area on the tensioning strip with the clamping element closed,
- Figure 12
- a perspective view of the embroidery machine and its frame,
- Figure 13
- a perspective section of the tensioning strip with the edge of the clamped embroidery base,
- Figure 14
- a front view of the detail in
Fig. 13 , - Figure 15
- a cross-section along line XV-XV in
Fig. 14 , - Figure 16
- 2 shows a perspective section of a needle station in the needle position,
- Figure 17
- the needle station swung away from the pin cushion,
- Figure 18
- a side view of the needle station and the lower winding shaft below,
- Figure 19
- a view of the needle station and the underlying deflection of the needle cushion in the working position,
- Figure 20
- the arrangement according to
Figure 17 in top view, - Figure 21
- a view of the needle station and the underlying deflection of the pincushion in the open position when clamping a new embroidery base on the winding shafts and
- Figure 22
- a section along line VV in
Figure 21 .
Der Spannrahmen einer Grossstickmaschine, kurz Gatter 1 genannt, umfasst zwei beabstandet angeordnete vertikal verlaufende Rahmenteile 3 und 5, zwischen denen eine obere Wickelwelle 7 und eine untere Wickelwelle 9 dreh- und antreibbar gelagert sind. Die Antriebe der beiden Wickelwellen 7 und 9 sind nicht dargestellt. Die beiden Wickelwellen 7 und 9 tragen einen Stickboden 11, der zwischen den beiden Wickelwellen 7, 9 plan gespannt gehalten ist. Die Verbindung zwischen der oberen Kante des Stickbodens 11, dessen Kettfäden horizontal und dessen Schussfäden vertikal verlaufen, mit der Wickelwelle 7 und deren Unterkante mit der Wickelwelle 9 erfolgt in aus dem Stand der Technik bekannter Weise. Diese wird hier nicht näher beschrieben.
Die beiden Rahmenteile 3 und 5 sind in vertikaler Richtung (Y-Richtung) an vertikal liegenden Führungsschienen 13 verschiebbar geführt. Die Führungsschienen 13 und das daran befestigte Gatter 1 sind ihrerseits mit Zahnstangen 15 in horizontaler Richtung verschiebbar. Die Verschiebung in horizontaler Richtung erfolgt über Zahnritzel 17, die von einem Servomotor 19 angetrieben werden.
Die Rahmenteile 3, 5 sind in vertikaler Richtung mit einer Zahnstange 21 verschiebbar gelagert, welche durch ein zweites Zahnritzel 23, angetrieben durch einen zweiten Servomotor 25, verschiebbar ist. Mit den beiden Servomotoren 19 und 25 können folglich die beiden Rahmenteile 3, 5 sowie die beiden Wickelwellen 7 und 9 mit dem darauf aufgespanntem Stickboden 11 in vertikaler und/oder horizontaler Richtung verfahren werden und damit kann durch die in einer horizontalen Ebene angeordneten Sticknadeln 26 der Stickboden 11 bestickt werden. In
The two
The
Weiter sind an den beiden Rahmenteilen 3 und 5 des Gatters 1 an in den Figuren nicht sichtbaren Trägern je zwei Kettenräder 27 befestigt, über die endlos ausgebildete Ketten 29 umlaufend angeordnet sind. Auf den Kettengliedern 31 der Ketten 29 sind Nadelkissen 33 aufgesetzt. Dornen 63 auf den Nadelkissen 33 sind in Richtung des Stickbodens 11 gerichtet und folglich nur in den
Auf der Rückseite der Nadelkissen 33 sind fahnenartig ausgebildete Führungsplatten 35 ausgebildet.Furthermore, two
Flag-shaped
Nadelseitig, d.h. auf der Seite des Betrachters der
Weiter ist an der Halteplatte 45 ein Klemm- und Halteelement 53 befestigt. Das Klemm- und Halteelement 53 umfasst zwei Klemmbacken 55, welche schwenkbar auf einer vertikal liegenden und an der Halteplatte 45 befestigten Welle 57 gelagert sind. Die Klemmbacken 55 werden von Hebelarmen 59 getragen, deren Enden mit einem Pneumatikantrieb 61 verbunden sind.
Zwischen den beiden Klemmbacken 55, d.h. zwischen deren beiden einander gegenüberliegenden Oberflächen können bei geöffneten Klemmbacken 55 die Führungsplatten 35 der Nadelkissen 33 berührungsfrei bewegt werden (vergl.
Die gemeinsame Schwenkwelle 57 für die Klemmbacken 55 erlaubt es, dass diese sich beim Klemmen selbsttätig auf die Platten 35 ausrichten und folglich mit gleichmässigen Kräften gegen die Führungsplatten 35 drücken.On the needle side, ie on the viewer's side
Furthermore, a clamping and holding
Between the two clamping
The
Aus den
In der vergrösserten Darstellung von drei Nadelkissen 33 in der
In den
In the
Beim Verschieben der Nadelkissen 33 in horizontaler Richtung "X" zusammen mit der Kettenführung 75 verbleiben die Klemmbacken 55 an der Haltevorrichtung 37 ortsfest stehen. Durch den Eingriff des Rollenpaars 47 an der vertikal angeordneten Führungsschiene 51, welche Führungsschiene 51 mit der Kettenführung 75 verbunden ist, wird die Haltevorrichtung 37 stets an die Lage der Nadelkissen 33 angepasst bzw. mitgeführt. Das Klemm- oder Halteelement 53 muss immer exakt mitgeführt werden, ansonsten die Nadelkissen 33 partiell gebremst würden und dadurch den Stickboden 11 verziehen.When the
Nachfolgend wird das Verfahren zum Wellen sowie die Funktionsweise mit der neuen Klemmvorrichtung näher erläutert. Ausgehend von der Situation, wie sie in den
Nun wird das Gatter 1 mit den daran befestigten Wickelwellen 7 und 9 durch den Servomotor 25 nach unten geführt. Die Kettenräder 27 mit der Kette 29 und der Kettenführung 75, die am Gatter 1 befestigt sind, fahren ebenfalls nach unten. Gleichzeitig werden die beiden Wickelwellen 7 und 9 angetrieben und zwar derart, dass der bestickte Stickboden 11 auf der oberen Wickelwelle 7 aufgewickelt und der noch nicht bestickte Stickbodenbereich von der unteren Wickelwelle 9 abgewickelt wird. Durch die einerseits geklemmt gehaltenen Führungsplatten 35, Nadelkissen 33, Kettenglieder 29 und anderseits durch die Abwärtsbewegung der Kettenräder 27 werden die Kettenräder 27 in Drehung versetzt. Während dieses Vorgangs drehen die Kettenräder 27 auf der linken Seite des Stickbodens 11 im Gegenuhrzeigersinn, diejenigen auf der rechten Seite im Uhrzeigersinn. Die Kettenglieder 31 mit den Nadelkissen 33 zwischen den Kettenrädern 27, an denen der Stickboden 11 gespannt gehalten wird, bewegen sich nicht analog den Platten eines angestossenen Raupenfahrzeugs, die auf dem Boden aufliegen. Die jeweils zuoberst liegenden Kettenglieder 31 werden einzeln um die oben liegenden Kettenräder 27 von der Kante des Stickbodens 11 weggeführt. Rechtzeitig bevor sich die Nadelkissen 33 von der Kante des Stickbodens 11 wegbewegen, wird der Stickboden 11 von den Dornen 63 an den Nadelkissen 33 gelöst. Das Ablösen des Stickbodens 11 von den Dornen 63 der Nadelkissen 33 erfolgt durch geeignet angeordnete Ablösemittel, die hier nicht näher beschrieben werden. Diese können einen Aufbau aufweisen wie diejenigen in der
Dieser Vorgang läuft solange, bis sich das Gatter 1 in der Position befindet, wie sie in den
This process continues until the
Während des Wellens des Stickbodens 11 von der unteren Wickelwelle 9 auf die obere Wickelwelle 7 greifen keine störenden Kräfte am Stickboden 11 an, weil durch das Nach-unten-Fahren des Gatters 1 keine Kettenbewegung des am Stickboden 11 anliegenden Trums der Kette 29 im Klemmbereich ausgelöst wird und die vom Stickboden 11 über das obere Kettenrad 27 wegfahrenden Nadelkissen 33 keine Verbindung mehr zum Stickboden 11 aufweisen. Die seitlichen, das heisst horizontalen Bewegungen des Gatters 1 beim Sticken werden durch das Klemm- und Halteelement 53 nicht behindert, da letztere von dem Rollenpaar 47, welches an der Führungsschiene 51 geführt ist, den Horizontalbewegungen des Gatters 1 folgen.During the corrugation of the
In den
An der oberen oder der unteren Schwenkplatte 85 ist zudem ein Schwenkhebel 97 befestigt, mit welchem die beiden Schwenkplatten 85 samt Antriebsmotor 81 und Walze 83 sowie dem Andrückrad 89 und Führungsplatte 93 aus einer Arbeitsstellung (
On the upper or the
In
In
Zusammengefasst erfolgt das Aufnadeln des Stickbodens 11 dadurch, dass mit den Walzen 83 die Kantenbereiche 11' des Stickbodens 11 vom zentral liegenden Stickbereich weg nach aussen gezogen werden. Dabei überqueren die Kantenbereiche 11' die Nadelkissen 33 bzw. deren Nadeln und werden von den Führungsplatten 93 hinter den Nadeln auf die nadellosen Bereiche der Nadelkissen 33 geführt und durch die Andrückräder 89 in die Nadeln der Nadelkissen 33 sicher hineingedrückt.
Nach dem Wellen des neuen Stickbereichs im Gatter können die Spannstäbe, d.h. die Nadelkissen 33 nach aussen geführt und dadurch der eingespannte Stickboden 11 auf die notwendige Spannung in horizontaler Richtung und durch die Wickelwellen in vertikaler Richtung gespannt werden.In summary, the needling of the
After the new embroidery area has been corrugated in the gate, the tension rods, ie the pin cushions 33, can be guided outwards and the clamped
Claims (20)
dadurch gekennzeichnet, dass
die vor dem Beginn des Wellens sich seitlich von dem Bereich des Stickbodens (11) mit den letzten ausgeführten Stichen des Stickmusters in Eingriff mit dem Stickboden (11) befindlichen Nadelkissen (33) in Bezug auf das Gestell der Stickmaschine festgeklemmt werden und die Nadelkissen (33) und damit der eingespannte Stickboden (11) während des Wellens ortsfest geklemmt und gespannt gehalten werden.Method for corrugating an embroidery base (11) in a creel (1) of an embroidery machine between an upper winding shaft (7) and a lower winding shaft (6) and for laterally tensioning the embroidery base (11) along the lying between the winding shafts (7,9) Side edges of the embroidery base (11) with side tensioning strips (10), each of which comprises a circumferential chain (29) with pin cushions (33) arranged on its chain links (31),
characterized in that
the pin cushions (33) which are located laterally from the area of the embroidery base (11) with the last stitches of the embroidery pattern in engagement with the embroidery base (11) are clamped in relation to the frame of the embroidery machine and the needle cushions (33 ) and thus the clamped embroidery base (11) is clamped in place and held tight during the corrugation.
gekennzeichnet durch die folgenden Verfahrensschritte:
characterized by the following process steps:
gekennzeichnet durch folgende Massnahmen:
characterized by the following measures:
dadurch gekennzeichnet, dass
am Maschinengestell (41) der Stickmaschine Halte- und Klemmelemente (53) angeordnet sind, mit denen an beiden Seitenkanten des Stickbodens (11) mindestens je ein Kettenglied (31) mit einem Nadelkissen (33) festklemmbar ist.System for corrugating the embroidery base on the frame (1) on a large embroidery machine, comprising an upper (7) and a lower winding shaft (9) for undulating an embroidery base (11) from the lower winding shaft (9) to the upper winding shaft (9), The winding shafts (7, 9) are fastened rotatably and drivably between two spaced frame parts (3,5), further comprising two side tensioning bars (10) arranged on the frame parts (3,5) of the gate (1) for laterally tensioning the Embroidery base (11), which side tensioning bars (10) each comprise a chain (29) rotating around two sprockets (27), which chains (29) are each guided in a chain guide (75) and pin cushions (33.) Attached to the chain links (31) ) wear,
characterized in that
Holding and clamping elements (53) are arranged on the machine frame (41) of the embroidery machine, with which at least one chain link (31) with a pin cushion (33) can be clamped on both side edges of the embroidery base (11).
dadurch gekennzeichnet, dass
an zwei einander gegenüberliegenden Rahmenteilen (3,5) je ein Schiebeelement und je ein Andrücker auf einem im Wesentlichen parallel zu den Rahmenelementen (3,5) liegender Achse (A) schwenkbaren Träger angeordnet sind.Embroidery machine creel with a device for needling a ribbon-shaped embroidery base (11) along its mutually opposite edges on pin cushions (33), which are arranged on transport means (29) endlessly rotating around two chain wheels (27) and their opposite dreams (29 ') each in a guide rail is guided parallel to one another, the chain wheels (27) being fastened to the frame parts (3, 5) forming the frame (1) of the embroidery machine,
characterized in that
a sliding element and a presser are arranged on two mutually opposite frame parts (3, 5) on an axis (A) which can be pivoted substantially parallel to the frame elements (3, 5).
dadurch gekennzeichnet, dass eine Führungskante an der Führungsplatte (93) beabstandet zur Achse der Walze (83) verläuft.Device according to one of claims 17 or 18,
characterized in that a guide edge on the guide plate (93) extends at a distance from the axis of the roller (83).
dadurch gekennzeichnet, dass am Träger ein drehbar gelagertes Andrückrad (89) zum Andrücken des Kantenbereichs (11') des Stickbodens an und in die Nadeln der Nadelkissen (33) im Wesentlichen parallel zur Führungsplatte (93) angeordnet ist.Device according to one of claims 16 to 19,
characterized in that a rotatably mounted pressure wheel (89) for pressing the edge region (11 ') of the embroidery base on and into the needles of the pincushion (33) is arranged essentially parallel to the guide plate (93).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH01216/18A CH715433A1 (en) | 2018-10-04 | 2018-10-04 | Method of corrugating an embroidery base and an embroidery machine creel. |
CH00439/19A CH715412A2 (en) | 2018-10-04 | 2019-04-02 | Method for corrugating an embroidery base and a system for undulating an embroidery base as well as an embroidery machine gate. |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3643828A2 true EP3643828A2 (en) | 2020-04-29 |
EP3643828A3 EP3643828A3 (en) | 2020-07-29 |
EP3643828B1 EP3643828B1 (en) | 2021-08-11 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP19197830.3A Active EP3643828B1 (en) | 2018-10-04 | 2019-09-17 | Embroidery machine and method for transferring the embroidery ground onto the needles holding the ground during rolling |
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EP (1) | EP3643828B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112442806A (en) * | 2020-12-04 | 2021-03-05 | 广西机电职业技术学院 | Automatic auxiliary cloth visual positioning embroidery equipment |
CN114507952A (en) * | 2022-02-21 | 2022-05-17 | 南通佳利园纺织品有限公司 | Embroidery frame clip |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0690164A1 (en) | 1994-06-30 | 1996-01-03 | Saurer Sticksysteme Ag | Apparatus for detecting the position of the web of cloth in an embroidering machine |
EP0919657A1 (en) | 1997-10-27 | 1999-06-02 | Franz Lässer AG | Embroidering frame with a web stretching device |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR329397A (en) * | 1902-02-19 | 1903-07-30 | John C Alman | Lock and loquel |
CH268508A (en) * | 1948-06-29 | 1950-05-31 | Hofmann Jun Willi | Device for hanging a piece of fabric to be embroidered on a longitudinal tensioning rod of a ship embroidery machine. |
DE1485497B1 (en) * | 1965-11-06 | 1971-02-04 | Rudolf Reich | Fabric transport device for embroidery machines |
-
2019
- 2019-09-17 EP EP19197830.3A patent/EP3643828B1/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0690164A1 (en) | 1994-06-30 | 1996-01-03 | Saurer Sticksysteme Ag | Apparatus for detecting the position of the web of cloth in an embroidering machine |
EP0919657A1 (en) | 1997-10-27 | 1999-06-02 | Franz Lässer AG | Embroidering frame with a web stretching device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112442806A (en) * | 2020-12-04 | 2021-03-05 | 广西机电职业技术学院 | Automatic auxiliary cloth visual positioning embroidery equipment |
CN114507952A (en) * | 2022-02-21 | 2022-05-17 | 南通佳利园纺织品有限公司 | Embroidery frame clip |
CN114507952B (en) * | 2022-02-21 | 2022-12-09 | 南通佳利园纺织品有限公司 | Embroidery frame clip |
Also Published As
Publication number | Publication date |
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EP3643828A3 (en) | 2020-07-29 |
EP3643828B1 (en) | 2021-08-11 |
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