EP1696062A2 - Method and device for replacing and/or transporting a frame module of a loom - Google Patents

Abstract

The rack (28): forms a part of the machines rack of the loom; exhibits warp beam, streak beam, shanks (35) and lamellae; is transferred into a transport position by gears between the weaving looms; and is moved in the transport position in relation to the operating position around a horizontal axis of rotation, which is in a distance of the rotation axis of the warp beam. The width of the rack is reduced and the axis of rotation of the rack has same height as the rotation axis of the warp beam. An independent claim is included for device for exchanging and/or transporting a rack module of weaving loom.

Description

The invention relates to a method for replacing and / or transporting a frame module of a loom, wherein the frame module forms part of the machine frame of the weaving machine, is detachable from this and has a warp beam, a bowing tree, shafts and lamellae. Furthermore, the invention relates to an apparatus for carrying out such a method.

Generally known in the weaving technique so-called article quick change systems, with which the time required for an article change can be significantly reduced compared to the separate change of individual components. The article is changed by replacing a so-called frame module, which forms the back of the machine frame and is separable from this. On the frame module usually the warp beam, the bowing tree and its supports, the warp guard, the shanks, the reed and the coils of the edge banding apparatus are attached.

The well-known article quick change system makes it possible to make all article-related settings on the warp side before the article change outside the Websaal. This not only reduces labor and downtime, but also leads to more efficient planning of warp and article changes.

The process of replacing a rack module is carried out with a specially designed for this purpose device, which is a kind of exchange pallet truck. This is approached from the back to the loom with changing rack module. After disconnecting the power supply for the rack module, releasing the shaft drive and unlocking the separable rack module with complete stringers and disengagement of the warp beam drive hydraulically operated arms of the known exchange lift truck in the warp beam under the frame module and lift this total from the machine. Together with the pallet truck, the rack module is transported in the aisle behind the weaving machine and then transported along the corridors to the article preparation department. After a possible cleaning of the remainder weaving machine this can immediately with another rack module that has already been prepared for another item. For this purpose, the frame module concerned is positioned with the aid of an exchange lift truck behind the loom that it can be lowered into the receiving position and locked there. The shafts are thereby inserted into the drive lever and, after the operator has set the blade, the temples and the weft shears, the weaving can be started.

Although the article quick-change system has proven to be very good in principle, a disadvantage of such a procedure is that for the transport of the rack modules by means of the exchange pallet trucks comparatively much space, i. wide passages between the looms are required. In existing machine arrangements with narrow aisles, the implementation of the article quick change is sometimes not possible due to lack of space. Furthermore, the large length of the exchange lift truck requires that it has a very large turning or turning radius. Also, the transversely to the machine corridors courses must therefore have a large width, so that the exchange pallet truck can be safely rescheduled together with the rack module without collision through the weaving room.

But even with the construction or the redesign of a weaving hall, in which the needs for the transport process could be considered in principle, the provision of large aisles is disadvantageous in several respects:

First, the space required for a certain number of looms, ie the Websaalgröße increased, thereby increasing the investment costs. Furthermore, as the area of the lounging room increases or increases, so does the air-conditioning cost, which accounts for around 50% of the total energy costs in the weaving mill. Finally, wide aisles and a large distance between the individual weaving machines mean an enlargement of the working distances, ie an extension of the travel times, and thus a corresponding increase in personnel costs.

task

The object of the invention is to propose a method and a device for exchanging or transporting a frame module of a weaving machine, in which the space requirement is reduced in a method of the frame module located on the device.

solution

Based on a method of the type described above, this object is achieved in that the frame module when removing from the loom or thereafter and / or when attaching to the weaving machine or previously at least with a rotational movement component is moved and / or in a relation to the Operating position in which it is connected to the weaving machine during weaving operation, pivoted transport position is moved through passages between the looms.

The rotational movement component leads to a reduction in the space required during the change process, since the frame module after removal from the loom by pivoting a smaller space requirement - especially in relation to the width - has as located in the loom position. In particular, the pivoting of the frame module about an axis parallel to the axis of rotation of the warp beam results in the shafts, which typically extend far in the direction of the stationary machine frame, being turned upwards. Since the warp beam axis of rotation is comparatively far back on the frame module, and usually no components exist that protrude beyond the warp disks to the rear, the pivoting movement according to the invention leads to no rear broadening of the rotated frame module. The width reduction occurring during the pivoting movement results in that the gears between the looms can be made smaller. The apparatus used in the transport can be readily adapted to have a smaller width than the width itself of the pivoted rack module, so that the width reduction achieved by the pivotal movement of the rack module is fully utilized for a reduction of the aisle width can be. With the possibility of dimensioning the gears between the looms smaller, go along with a number of advantages, namely in particular the reduction of investment costs over a reduced hall size, the reduction of air conditioning costs and a reduction of the staff to be covered by the work paths when operating the weaving machines.

A particular advantage of the method according to the invention is that the warp threads, e.g. were previously drawn into a mortising machine, while pivoting and / or transport in the pivoted state always remain in a tensioned state and remain exactly as they come from the mortising machine. When reassembling a loom with another, previously prepared outside the Web room rack module thus created by the inventive rotational movement of the module absolutely no disadvantages, since it is ensured that the shafts remain gravitationally always in a vertical state.

Preferably, the frame module is pivoted about a horizontal axis of rotation, which is located at a distance from the axis of rotation of the warp beam. It is advisable that the axis of rotation of the frame module is approximately at the same height as the axis of rotation of the warp beam.

In order to first release the frame module from its holder or anchoring to the stationary part of the machine frame, the frame module should first be moved a small distance in the vertical direction and then also rotationally when removing from the weaving machine. If necessary, a small horizontal translatory movement can be added following the vertical translational movement if the installation situation should not yet permit a rotational movement directly following the vertical movement.

Preferably, the frame module is transferred during removal of the weaving machine in a transport position in which it is moved by gears between looms of a weaving shed, wherein the frame module in the transport position relative to the operating position, is pivoted so that the width of the frame module in comparison with the operating position is reduced.

In development of the invention it is provided that the frame module - starting from the Betreibstellung - by an angle between 30 ° and 45 °, preferably between 35 ° and 40 °, is pivoted into the transport position.

The object according to the invention is furthermore achieved by a device for exchanging and / or transporting a frame module of a weaving machine, wherein the frame module forms part of the machine frame of the weaving machine, is detachable from this and has a warp beam, a bowing tree, shafts and lamellae, wherein the Device characterized in that the frame module when removing from the loom or thereafter and / or when attaching to the weaving machine is movable at least with a rotational movement component.

According to the invention can be reduced by the aforementioned device required for replacing and transporting a rack module space especially the width of the aisles between the weaving machines, whereby the investment and operating costs of a weaving can be reduced ....

In an embodiment of the device according to the invention it is proposed that the frame module is pivotable in the device substantially about a horizontal axis of rotation, which is offset from the axis of rotation of the warp beam approximately in the horizontal direction to the rear. In this way, an optimal sequence of the pivoting movement can be realized.

According to one embodiment of the invention, it is provided that the device comprises support arms for supporting the warp beam and support arms for supporting a rear bracket of the frame module, which carries a leno apparatus and the spools for the leno threads. The frame module to be handled is securely supported in this way at least four points - both in the operating position and in the transport position.

A particularly preferred embodiment of the device according to the invention each has a support arm and a support arm, which are connected to an L-shaped lever which is rotatable relative to a chassis of the device. All four receiving points of the rack module thus move on circular paths around the axis of rotation of the L-shaped lever. These The axis of rotation for the rack module should preferably be in the vicinity of the connecting region of the support arm and support arm.

In order to allow an initial vertical lifting of the frame module without changing the axis of rotation of the L-lever, relative to the chassis of the device, it is expedient to make the support arm variable in length and to provide the support arm with a curved support surface for the warp beam. The warp beam may then travel up the curvilinear support surface upon initial vertical lifting of the rack module until the rack module is free for subsequent rotary motion, or rotational motion component motion. In addition, the support arm of the L-lever relative to the support arm, preferably between two end stops, be pivotable. The included by the two arms of the L-lever angle is thus changeable within certain limits. Thus, upon initiation of the rotational movement in the support arm of the support arms rotate by a certain angle relative to the support arm to allow the moving frame module certain freedom, especially in the first phase after leaving the operating position.

It is also proposed according to the invention that the L-shaped lever, in particular the support arm is provided with a coupling element which is connected to the chassis via a rotatable threaded rod and that the coupling element or the chassis is connected to a nut in which the Threaded rod is screwed. By simply turning the threaded rod - for example by means of a hand-operated crank, but also with the aid of a drive - a relative movement between the L-lever and the chassis of the device can be achieved, i. adjust the swivel angle of the rack module.

Finally, an embodiment of the invention is still in that two rollers provided with arms of the chassis of the device during the change process between two arms of the fixed part of the machine frame and / or two arms of a mobile module carrier are arranged. In this way, the length of the device compared to the prior art can be significantly reduced. While in the known devices, the boom on both sides outside the two arms of the fixed part of the machine frame and / or the arms of a mobile carrier module, the boom in the device according to the invention, for example, vertically below the support arms for the warp beam are arranged. According to the invention, the length of the device equipped with the rack module is thus determined solely by the rack module itself. An additional length, which is present in devices of the prior art at both ends of the module, no longer occurs in the device according to the invention. The curve radii of the device according to the invention can therefore be smaller in comparison with the prior art, which is why the transverse gears can be reduced in their widths. As a result, the hall size and all related additional costs can be further reduced.

embodiment

Fig. 1

eine perspektivische Ansicht der erfindungsgemäßen Vorrichtung ohne Beladung mit einem Gestellmodul;

Fig. 2

eine vergrößerte Teilansicht eines L-förmigen Hebels der Vorrichtung gemäß Figur 1;

Fig. 3

eine Ansicht eines mit einem Gestellmodul versehenen Modulträgers mit einer herangefahrenen und mit dem Gestellmodul gekoppelten Vorrichtung;

Fig. 4

eine vergrößerte Teilansicht eines Stützarms der Vorrichtung gemäß Figur 3;

Fig. 5

wie Figur 3, jedoch in einer geschwenkten Stellung des Gestellmoduls;

Fig. 6

wie Figur 5 jedoch nach Entfernung der Vorrichtung von dem Modulträger;

Fig. 7

eine vergrößerte Teilansicht eines alternativen Kragarms und

Fig. 8

eine Ansicht einer drehbaren Halterung für die Spulen der Dreherfäden.

The inventive method will be explained in more detail with reference to an embodiment of a device according to the invention, which is illustrated in the drawing. It shows:

Fig. 1

a perspective view of the device according to the invention without loading with a rack module;

Fig. 2

an enlarged partial view of an L-shaped lever of the device according to Figure 1;

Fig. 3

a view of a provided with a frame module module carrier with an approached and coupled to the rack module device;

Fig. 4

an enlarged partial view of a support arm of the device of Figure 3;

Fig. 5

like Figure 3, but in a pivoted position of the rack module;

Fig. 6

like Figure 5 but after removal of the device from the module carrier;

Fig. 7

an enlarged partial view of an alternative cantilever and

Fig. 8

a view of a rotatable holder for the coils of the leno threads.

A device 1 shown in FIG. 1 for exchanging and transporting a frame module of a weaving machine (not shown in detail in FIG. 1) consists of a tubular chassis 2, which is square in cross-section and is U-shaped in plan view. The legs of the U are formed by a respective boom 3, which is provided at its the connecting web 4 of the U remote from the end with a roller 5. Two further rollers 6 are located at the ends of the central web. 4

Furthermore, the chassis 2 has two vertically extending struts 7 and two shorter also vertically extending struts 8. At the ends of the struts 8 are bearings 9, in which pins not shown in detail each of an L-shaped lever 10 are added. The L-shaped levers 10 each have a in the position shown approximately horizontally extending support arms 11 with an end-side curved support surface 12 and a in the operating position shown approximately vertically extending support arm thirteenth

As can be seen in particular from Figure 2, the support arm 13 has in its upper half a recess 14 in the longitudinal direction of a rotatably mounted threaded rod 15 extends, which can be rotated by means of a recognizable in Figure 1 crank 16. In the elongated recess 14 engages from an end face of the device 1, an L-shaped cantilever 17 a. In the area of the threaded rod 15 of the cantilever 17 is provided with a corresponding threaded hole, so that as a result of rotation of the crank 16 of the cantilever 17 with its forked end 18 in the vertical direction up and down is movable.

It can further be seen from FIG. 2 that a coupling element 19, in the form of a further, shorter lever, is welded to the support arm 11 of the L-shaped lever 10. The coupling element 19 and the support arm 11 are fixedly connected to each other by welding. The support arm 13 is articulated to the L-shaped lever 10 and pivotable between two end positions at an angle of about 10 ° to 15 ° about a hinge 13 '. The end positions are defined by corresponding stops that are adjustable. The L-angle is thus variable within certain limits between a maximum value and a minimum value.

In a likewise fork-shaped end 20 of the coupling element 19 is a rotatably mounted nut, which is in engagement with a threaded rod 21. This threaded rod 21 is mounted with its opposite end in the strut 7 (see Figure 1) and there fixed torque with a crank 22, the handle 23 is shown in Figure 1 in a folded position. Thus, while the L-shaped lever 10 can be pivoted in its entirety by an axis of rotation 24 shown by a dashed line by operating the crank 22, an actuation of the further crank 16 causes a height adjustment of the cantilever 17th

FIG. 3 shows how the device 1 according to FIGS. 1 and 2 has moved up to a module carrier 26 which can also be moved by means of four rollers 25. In this case, during the change process explained in more detail below, the arms 3 of the chassis 2 of the device 1 are located within two jibs 27 of the module carrier 26 extending at the ends and parallel to the jibs 3. The jibs 3 of the device 1 are located below the rack module 28, which is mounted in the module carrier 26 in FIG. 3 and rests there in particular in the region of a projection 29 of the module carrier 26. The connection technology between module carrier 26 and rack module 28 is well known and not the subject of the present invention. Also part of the state of the art is the non-illustrated weaving machine with which the frame module 28 is coupled.

Furthermore, the connection points 30, 32 between the device 1 and in particular its L-shaped lever 10 with the frame module 28 can be seen from FIG. In the region of a first connection point 30, the fork-shaped end 18 of the cantilever arm 17 of the support arm 13 engages in an adapted recess of a bracket 31, which serves inter alia to accommodate a leno apparatus. This situation can be seen in particular from Figure 4, where both the console 31 and the support arm 17 and the support arm 13 of the L-shaped lever 10 can be seen.

The second connection point 32 is located in the region of the support surface 12 of the support arm 11 of the lever 10. The lever 10 is supported there from below on a warp beam 33, which is rotatably mounted in the frame module 28.

The support arm 11 and the warp beam 33 with its warp disk 34 can also be seen in FIG. The support arm 11 engages in a region between the chainring 34 and a side module frame from below to the warp beam 33rd

FIG. 5 shows the frame module 28 in a position of the so-called transport position which is pivoted clockwise by approximately 35 ° relative to the position according to FIG. In the region of the projection 29 of the module carrier 26, the frame module 28 is now no longer on. The frame module 28 is now supported exclusively on the support arms 11 and the support arms 13 of the lever 10, the device 1 and is supported exclusively on the rollers 5 and 6. Based on the storage position of the frame module 28 shown in Figure 3 in the module carrier 26, which also corresponds to the operating position of the frame module 28 in the weaving machine, the module is first lifted by operating the crank 16 by a few inches vertically upwards in order to effect an unlocking in the region of the projection 29 of the module carrier 26. Then can be initiated by actuation of the second crank 22, the actual pivoting operation, which is effected by a rotation of the L-shaped lever 10 about the rotation axis 24. During the pivoting operation, with the exception of the shafts 35 (these are moved purely translationally obliquely upward) all components of the frame module 28 of the rotational movement follow. However, since the shafts 35 are attached freely suspended on the frame module 28, they always retain their vertical orientation and only their bearing axis shifts, as is clear from a comparison of Figures 3 and 5 very clearly. This has the advantage that the shafts 35 do not continue to unload during the rotational movement with their lower end, but move in the direction of the axis of rotation of the warp beam 33 to save space. In this way, the rack module 28 assumes a minimum extent in terms of its width.

FIG. 6 also shows the frame module 28 located on the device 1 in its transport position, but this time from the opposite viewing direction. The device 1 with the frame module 28 has been removed from the module carrier 26 and now shows in the state as it is transported on the device 1 through the gears between looms. It is understood that both the pivoting movement and the driving movement of the device can be performed both manually and in each case by means of a drive. Also a driverless control of the driving process with the help of induction loop systems is of course in question. The process of attaching the rack module 28 to the loom is inverse to the process of removing the rack module 28 from the loom. Since the receiving points and mounting mechanisms on the module carrier 26 and the weaving machine, not shown, the change processes in the weaving machine run identically, as in the module carrier shown.

Figure 7 shows an alternative embodiment of a cantilever 17 which is arranged on the same support arm 13 as that of Figure 2 removable. The fork-shaped end 18 is provided on both tines 36 with a rectangular cross-section recess 37 into which a visible from Figs. 4 and 6 web 38 engages the bracket 31 of the frame module 28. After this engagement has taken place, two fork-shaped coupled slide 39 are pushed by means of an actuating lever 40 upwards into the recess in the bracket 31, so as to prevent recess 37 and web 38 can be disengaged again. The sliding latch 39 can be biased by spring force into its locking position, and then only has to be actuated for unlocking purposes.

Finally, it can also be seen from FIG. 8 that a support 41, which can also be seen from FIG. 5 and undivided therein, can also be articulatedly split for coils of leno threads in order to move the coils of the leno threads in the pivoted position of the frame module 28 shown in FIG to save space in both directions of the arrows 42 to pivot. In the area of a spring 43 shown in FIG. 5, the support 41 shown in FIG. 8 has a swivel joint 45 formed from two disk bodies 44, which makes it possible to fix the upper part of the support 41o, on which the spools of the leno threads are mounted, relative to the one fixed to the Frame module 28 fixed support base 41u to pivot. The support upper part 41o and the support base 41u are welded on opposite sides of the swivel joint 45, each with a disk body. A fastened to one of the disk body 44 bolt 46 is guided by a groove 47 in the other disk body 44 and limited in conjunction with the two-sided groove ends 48, the pivoting movement. With the help of a quick release lever 49 can be fix the two disk body 44 and thus the support upper part 41o and the support base 41u relative to each other.

Claims (14)

Method for exchanging and / or transporting a frame module (28) of a weaving machine, wherein the frame module (28) forms part of the machine frame of the loom, is detachable therefrom and has a warp beam (33), a spreading beam, shafts (35) and lamellae , characterized in that the frame module (28) during removal from the loom or thereafter and / or when applying to the weaving machine or previously at least with a rotational movement component is moved and / or in a relation to an operating position in which it during weaving with the weaving machine is connected, pivoted transport position by gears between looms is moved. A method according to claim 1, characterized in that the frame module (28) is pivoted about a horizontal axis of rotation (24), which is located at a distance from the axis of rotation of the warp beam (33). A method according to claim 1 or 2, characterized in that the axis of rotation (24) of the frame module (28) is located approximately at the same height as the axis of rotation of the warp beam (30). Method according to one of claims 1 to 3, characterized in that the frame module (28) when removing from the loom, first a small path in the vertical direction and then also rotatory moves. Method according to one of claims 1 to 4, characterized in that the frame module (28) is transferred during removal from the loom in a transport position in which it is moved by gears between weaving a weaving shed, wherein the frame module in the transport position relative to the operating position , Is pivoted so that the width of the frame module (28) is reduced in comparison with the operating position. Method according to one of claims 1 to 5, characterized in that the frame module (28), starting from the operating position to a Angle between 30 ° and 45 ° is preferably pivoted between 35 ° and 40 ° in the transport position. Device (1) for exchanging and / or transporting a frame module of a weaving machine, wherein the frame module (28) forms part of the machine frame of the weaving machine, is detachable from this and has a warp beam (33), a bowing tree, shafts (35) and lamellae , characterized in that the frame module (28) when removing from the loom or thereafter and / or when applying to the weaving machine or previously movable at least with a rotational movement component. Apparatus according to claim 7, characterized in that the frame module (28) in the device (1) substantially about a horizontal axis of rotation (24) is pivotable, which is offset relative to the axis of rotation of the warp beam (33) approximately in the horizontal direction to the rear. Apparatus according to claim 7 or 8, characterized in that the support arms (11) for supporting the warp beam (33) and support arms (13) for supporting a rear bracket (31) of the frame module (28) having a leno apparatus and the coils for wearing the leno threads. Apparatus according to claim 9, characterized in that in each case a support arm (11) and a support arm (13) to an L-shaped lever (10) are connected, which is rotatable relative to a chassis (2) of the device (1). Apparatus according to claim 10, characterized in that the axis of rotation (24) for the frame module (28) in the vicinity of the connecting region of the support arm (11) and support arm (13). Device according to one of claims 9 to 11, characterized in that the support arm (13) is variable in length and / or against the support arm (12) between two end stops and the support arm (12) has a curved support surface (12) for the Warp beam (33). Device according to one of claims 10 to 12, characterized in that the L-shaped lever (10) is provided with a coupling element (20) which is connected to the chassis (2) via a rotatable threaded rod (21) and that the coupling element (20) or the chassis (2) is connected to a nut with which the threaded rod (21) cooperates. Device according to one of claims 7 to 13, characterized in that two with rollers (5, 6) provided boom (3) of the chassis (2) of the device (1) during the change process between two cantilevers of the fixed part of the machine frame and / or two arms (27) of a mobile module carrier (26) are arranged.

Images