ARRANGEMENT OF THE INTERCONNECTION OF THE WIDTHS OF A TISSUE GUIDANCE DEVICE

专利摘要:
The present invention relates on the one hand to a fabric guiding device (1) for a double-piece weaving machine, comprising a cutting knife (8) and an upper bridge (2) and lower bridge (3) which are spaced at adjustable distances from each other and from the cutting knife (4) by means of drive means (4a; 4b). 8) be positionable. On the other hand, this invention relates to a method for moving a lower bridge (3) and / or upper bridge (2).
公开号:BE1022813B1
申请号:E2015/5135
申请日:2015-03-12
公开日:2016-09-13
发明作者:Koen Bruynoghe；Sander Goethals
申请人:Michel Van De Wiele Nv；
IPC主号:

专利说明:

ARRANGEMENT OF THE INTERCONNECTION OF THE WIDTHS OF A TISSUE GUIDANCE DEVICE
This invention relates on the one hand to a tissue guiding device for a double-piece weaving machine, comprising a cutting knife and an upper and lower bridge which can be positioned at adjustable distances from each other and from the cutting knife with the aid of drive means. On the other hand, this invention relates to a method for moving a lower bridge and / or upper bridge.
Furthermore, this invention relates to a double-piece weaving machine provided with a tissue guiding device according to the invention.
The terms upper bridge and lower bridge are used in this patent application to name the cross bars that are fixed above and below the fabric across the weaving width of the machine and which serve to guide the fabrics in the direction of the cutting knife. The space between the upper and lower bridge is also referred to as bite in this patent application.
In two-piece weaving machines, two fabrics are woven simultaneously, usually one above the other, each comprising a base fabric consisting of weft yarns and warp yarns. In the case of weaving fabrics with a cut pile, these base fabrics are connected to each other by means of pile warp yarns, which move pattern-formingly from the bottom base fabric to the top base fabric and vice versa.
The two fabrics (which together form the unseparated double piece fabric) then move together during the weaving process in the gap formed between the upper bridge and the lower bridge. These two fabrics in the unseparated double-piece fabric are kept apart by a distance that almost corresponds to the distance between the upper bridge and lower bridge (= bite height). In some cases, a lancet device is additionally used which includes elongated metal strips, the lancets. Over the width of the weaving machine, several lancets extend in chain direction as far as the bite, between the lower and upper soil tissue. The unseparated double piece fabric is then presented to the cutting device which will perform a cutting operation with the aid of a cutting knife, so that two tissues with a cut pile are formed.
Adjusting this bite is a delicate process, both to: - set a specific exact value of the bite height; - to keep the bit height left and right of the weaving machine the same; - keeping the cutting device correctly positioned relative to the bite; - to avoid or at least limit bending of the upper and lower bridge in order to minimize an uneven pile height across the width of the weaving machine.
In the Belgian patent BE 1000995 a device is described that simplifies the adjustment of the bite and makes it no longer necessary to apply the "trial and error" method, whereby after each adjustment of the bite the result must be assessed by weaving from a piece of fabric. To this end, the cutting device is initially provided with one or more electronic displacement sensors which give a signal that is proportional to the position of the upper and lower bridge relative to the cutting knife, respectively. In the second instance, the upper and lower bridge at their ends are each provided with adjusting spindles which can optionally be driven by an electric motor to simplify the adjustment of upper and lower bridge. By adjusting the different adjusting spindles one can read and check the distances between upper and lower bridge on the one hand and between one of the bridges and a reference point on the weaving machine (upper or lower side of the cutting knife) on the other and check whether the processor unit is used to drive to reach the desired position.
Placing electric motor-driven adjusting spindles on both the upper and lower bridge, and the possible use of the processor unit to achieve the desired position makes the adjustment of the bite easy and reduces the risk of errors and inaccuracies, but is a complex and expensive solution for actions that only have to be performed occasionally.
It is therefore an object of the present invention to provide a simplified tissue guiding device for a double-piece weaving machine, with which an automatic and accurate adjustment of both the mutual position of the upper and lower bridge (bit height) on the one hand, and of the position relative to a reference in the weaving machine, for example, the cutting position, on the other hand, is possible. The cutting position can be defined as the line of the successive positions of the tip of the cutting blade during the cutting operation. As a good approximation for the cutting position, the movement of a point on the upper or lower surface of the cutting knife can be chosen, whereby furthermore half of the thickness of the cutting knife is taken into account to approximate the actual cutting position as well as possible.
The object of the invention is achieved by providing a tissue guiding device for a double-piece weaving machine comprising a cutting knife and an upper and lower bridge positionable at adjustable distances from each other and the cutting knife with the aid of drive means, the device comprising coupling means that can be switched are between a first position in which the upper and lower bridge are coupled to each other, as a result of which the upper and lower bridge can be positioned together with the aid of said drive means, and a second position, in which the upper and lower bridge are disconnected from each other so that only the upper bridge or only the lower bridge can be positioned with the aid of the drive means.
Only positioning one of the two bridges directly via the drive means and making use of a coupling means that offers the user the option of either only moving the bridge on which the drive means act directly, or moving the two bridges simultaneously (moving), has the advantage that the tissue guiding device is less complex compared to what is known from the prior art, but it nevertheless allows for the adjustment of the mutual position of the upper and lower bridge (bite height) on the one hand and their position relative to the cutting position on the other , to set accurately and above all automatically.
This application refers to biting height because the known devices for double-piece weaving machines perform the positioning of the bridges in a vertical plane. It will be clear that when positioning the bridges in a non-vertical plane, the term bit height has the meaning of the perpendicular distance between upper and lower bridge.
With the coupling means it becomes possible to (temporarily) block the distance between the upper and lower bridge. The coupling means used in the tissue guiding device according to the invention preferably has a defined operating state in the case of non-excitation, either of the "normally open" or of the "normally closed" type. To realize the coupling, the coupling means preferably comprises spring elements which may or may not be actuated to realize the coupling or not.
In a special embodiment of the tissue guiding device according to the invention, the drive means comprise a first and second drive means wherein the first drive means is provided at one end of the bridge which is positionable when the coupling means are switched in their second position and wherein the second drive means is provided at the other end of this bridge. The driving means can further be expanded with a third driving means which is provided in the middle of the lower bridge.
Placing the drive means is practically easier to realize when they are provided on the lower bridge, so that this lower bridge is directly drivable. Therefore, in a preferred embodiment of the tissue guiding device according to the invention, the lower bridge can be positioned in both the first and second position of the coupling means and said coupling means can be switched between a first position in which the lower and upper bridge are coupled to each other, so that they can be positioned together, and a second position in which only the lower bridge can be positioned.
According to a more preferred embodiment of the tissue guiding device according to the invention, the drive means comprise hydraulic or electric actuators.
In a most preferred embodiment of the tissue guiding device according to the invention, the drive means comprise one or more screw means which are provided for positioning the upper and lower bridge relative to each other and relative to the cutting knife, and the drive means comprise at least one electric motor which is provided to rotate the screw means for the adjustment of said bridges. An example of a drive means according to the invention is a motor-spindle combination, optionally provided with a gear unit.
In a more special embodiment of the tissue guiding device according to the invention, it comprises one or more position sensors for determining the position of the upper bridge, the lower bridge and the cutting knife. The position sensors are suitable for determining the relative positions of the upper bridge, the lower bridge, after calibration, for example with the aid of a first selected bite adjustment with manual measurement of the distance between the lower and upper bridge and with respect to the cutting position (cutting knife) and the cutting knife.
Preferably, the position sensors are provided at least at both ends of both the lower and the upper bridge. Furthermore, in a preferred embodiment, position sensors can also be provided at both ends at the height of the cutting position.
In a more preferred embodiment, one or more position sensors are also provided at least at the level of (or in the vicinity of) the center of one of the bridges, for example the lower bridge. This position sensor (s) is (are) particularly suitable for determining the position of the bridge at the height of the center in order to ascertain whether or not the bridge undergoes deflection. This deflection is the result of the bridge's own weight and / or of the forces exerted on the bridge by the fabric, which are the result of the yarn tension.
The position sensors used in the device are preferably of the following types: contact-based or contactless such as, for example, optical (laser) or inductive.
According to an advantageous embodiment of the tissue guiding device according to the invention, the device comprises first clamping means which are provided for releasing the upper and lower bridge and securing it in the adjusted position. In a more advantageous embodiment, the device furthermore comprises second clamping means which are provided for releasing and re-securing the lower bridge between its two ends when the desired position has been reached. The second clamping means are particularly suitable as an aid for the compensation of the deflection described earlier.
In a first preferred embodiment, the first and / or second clamping means are suitable for manual operation. In a second preferred embodiment, the first and / or second clamping means are suitable for automatic operation. With automatically operated clamping means, the first and / or second clamping means comprise pneumatic, hydraulic or electric actuators.
In a more advantageous embodiment of the tissue guiding device according to the invention, the first clamping means, respectively the first and / or second clamping means, are provided for connecting the upper bridge or the lower bridge to the chassis of a weaving machine.
This invention also relates to a double-piece weaving machine provided with a tissue guiding device according to the invention as described above. The weaving machine or the tissue guiding device according to the invention can further be provided with means for entering the desired bite height and for displaying the positions measured by the position sensors.
Another subject of this invention relates to a method for positioning a lower and / or upper bridge of a fabric guiding device of a double-piece weaving machine, the upper and lower bridge of which can be positioned with the aid of drive means and wherein the tissue guiding device further comprises coupling means which are switchable between a first and a second position, wherein the coupling means in the first position, in which the lower and upper bridge are coupled to each other, is switched to position the lower and upper bridge together, and wherein the coupling means is switched in the second position, wherein the lower and upper bridge are disconnected from each other, so that only the upper bridge or only the lower bridge can be positioned with the aid of the drive means.
In a preferred method according to this invention, the coupling means is first switched to the first position to move both bridges together and then to its second position to bring only the upper bridge or only the lower bridge to the desired position.
The method according to the present invention is particularly suitable for application to the tissue guiding device described in this application. More in particular, the method is suitable for being applied to a tissue guiding device comprising: first and second clamping means, a lancet device, ....
A further preferred method according to the invention comprises, for a preferred embodiment of the tissue guiding device according to the invention, where only the lower bridge is positionable with the coupling means connected in their second position, at least one of the following preparatory steps in the case of a desired change in the relative position of the lower part. - and upper bridge with respect to each other or with regard to a cutting knife: • Determining the current positions of the upper bridge, the lower bridge and the cutting knife, from which the bite height, the deflection of the lower bridge (if the position in the middle of the lower bridge can be measured) and) the relative position of the cutting line's cutting line with respect to the bite opening can be deduced, position sensors being provided at least at each of the ends of the upper and lower bridge; • Determining the desired new bit height and / or the desired relative position of the cutting line's cutting line in relation to the bite opening; • Converting these values to the desired new positions for the upper and lower bridge; • Preparing the weaving machine: o In the case of a desired reduction in the bite height, if necessary, reducing the height of the lancets in the bite opening in function of the new desired bite height; o Reducing the size and / or direction of the force effect of the fabric on the lower and upper bridge by, where possible, lowering the yarn tension and / or bringing the weaving frames into an adjusted position; o Checking and optionally activating the actuation of the position-adjusting drive means, up to a level that allows the existing positions to be retained when the clamping means are released.
For setting a desired position for the upper and / or lower bridge, the method according to the invention comprises at least one of the following steps: • If necessary, setting the desired position of the upper bridge: o Switching of the coupling means in the coupled state ; o Loosening the first clamping means at the ends of the upper and lower bridge and, if present, from the second clamping means in the middle of the lower bridge; o Bring the upper bridge to the desired position with the aid of the position-adjusting drive means of the lower bridge; o Fixing the first clamping means at the ends of the upper bridge; • Setting the desired position of the lower bridge: o Bring the coupling means into the uncoupled state; o If this has not yet happened, release the first clamping means at the ends of the lower bridge and, if present, from the second clamping means in the middle of the lower bridge; o When there are only position-adjusting drive means at the ends of the lower bridge, but when one or more position sensors are present in the middle of the lower bridge:
Moving the lower bridge until the desired position in the middle of the lower bridge is reached;
Securing the second clamping means in the middle of the lower bridge;
Moving the lower bridge until the desired position at the ends of the lower bridge is reached;
Securing the first clamping means to the ends of the lower bridge. o If at least one position-adjusting drive means, in the form of a third drive means, and one or more position sensors are present in the middle of the lower bridge in addition to the position-adjusting drive means at the ends of the lower bridge:
Moving the lower bridge, with both the position-adjusting drive means at the ends of the lower bridge and those in the middle of the lower bridge, until the desired position at the ends of the lower bridge is reached;
Securing the first clamping means to the ends of the lower bridge;
Moving the center of the lower bridge with the position-adjusting drive means in the middle of the lower bridge until the desired position is reached;
Securing the second clamping means in the middle of the lower bridge. o If no position-adjusting drive means and no position sensor is present in the middle of the lower bridge:
Moving the lower bridge until the desired position at the ends of the lower bridge is reached;
Securing the first clamping means at the ends of the lower bridge and the second clamping means in the middle of the lower bridge, if these are present.
The method according to the invention further comprises at least one of the steps described below to prepare the weaving machine for weaving again: • De-activating the actuation of the position-adjusting drive means and of the coupling means; • Return the thread tension on the upper and lower bridge to the normal level required for tissue production and / or to normalize the position of the weaving frames; • If the bite height has been increased, if necessary, adjust the height of the lancets in the bite opening in function of the newly set bite height.
Naturally, an analogous method, with an embodiment of the tissue guiding device according to the invention, where only the upper bridge can be positioned with the coupling means connected in their second position, also forms part of this invention. This analog method comprises at least one of the same preparatory steps as with a desired change of the relative position of the lower and upper bridge relative to each other or relative to a cutting knife and at least one of the same steps to prepare the weaving machine for weaving as described above for the embodiment where only the lower bridge is positionable with the coupling means connected in their second position.
For the setting of a desired position for the upper and / or lower bridge, this analog method according to the invention comprises at least one of the following steps: • If necessary, setting the desired position of the lower bridge: o Switching of the coupling means in the coupled status; o Loosening the first clamping means at the ends of the upper and lower bridge and, if present, from the second clamping means in the middle of the lower bridge; o When there are only position-adjusting drive means at the ends of the upper bridge, but when one or more position sensors are present in the middle of the lower bridge:
Moving the lower bridge with the aid of the position-adjusting drive means of the upper bridge until the desired position in the middle of the lower bridge is reached;
Securing the second clamping means in the middle of the lower bridge;
Moving the lower bridge with the aid of the position-adjusting drive means of the upper bridge until the desired position at the ends of the lower bridge is reached;
Securing the first clamping means to the ends of the lower bridge; o If at least one position-adjusting drive means, in the form of a third drive means, and one or more position sensors are present in the middle of the lower bridge in addition to the position-adjusting drive means at the ends of the upper bridge:
Moving the lower bridge, with both the position-adjusting drive means at the ends of the upper bridge and in the middle of the lower bridge, until the desired position at the ends of the lower bridge is reached;
Securing the first clamping means to the ends of the lower bridge;
Moving the center of the lower bridge with the position-adjusting drive means in the middle of the lower bridge until the desired position is reached;
Securing the second clamping means in the middle of the lower bridge; o If no position-adjusting drive means and no position sensor is present in the middle of the lower bridge:
Moving the lower bridge with the aid of the position-adjusting drive means of the upper bridge until the desired position at the ends of the lower bridge is reached;
Securing the first clamping means at the ends of the lower bridge and the second clamping means in the middle of the lower bridge, if these are present; • Setting the desired position of the upper bridge: o Bring the coupling means into the uncoupled state; o If this has not yet happened, release the first clamping means at the ends of the upper bridge; o Move the upper bridge until the desired position at the ends of the upper bridge is reached; o Fixing the first clamping means at the ends of the upper bridge.
In order to further clarify the features of this invention and to indicate additional advantages and details thereof, a more detailed description of a tissue guiding device according to the present invention now follows. It is clear that nothing in the following description can be interpreted as a limitation of the protection claimed for the invention in the claims.
In this description reference is made to the accompanying drawings by reference numerals, in which: figure 1 is a perspective view of a tissue guiding device according to the invention with the lower and upper bridge in the coupled state; figure 2 is a front view of the device shown in figure 1; figure 3 is a rear view of the device shown in figure 1; figure 4: a detailed representation of the area B encircled in figure 2; figure 5: a detailed representation of the area C encircled in figure 3; figure 6: is a detailed representation of the area A encircled in figure 1
The fabric guiding device (1) for a double-piece weaving machine according to the present invention and represented in figures 1 to 3 comprises a cutting knife (8) and an upper bridge (2) and a lower bridge (3) which can be adjusted by means of driving means (4a; 4b) distance from each other and from the cutting blade. The cutting knife is movable on a guide which is fixedly connected to the machine frame.
The drive means (4a; 4b) comprise a first (4a) and second (4b) drive means. The drive can be realized electrically (screw spindle + servomotor + gear unit) or hydraulically (hydraulic servo cylinders). In the device (1) shown, the drive means (4a; 4b) are mechanically connected to the ends of the lower bridge (3). The system that is responsible for the vertical movement of the lower bridge consists mainly of a bearing screw spindle and a servomotor with a gear unit.
The upper bridge (2) does not have its own drive for its positioning. To move (position) the upper bridge (2), it can be mechanically connected to the lower bridge (3), both moving together. To realize the mechanical connection (coupling) between the lower bridge (3) and upper bridge (2), the device (1) comprises coupling means (5) that can be switched between a first position in which the upper bridge (2) and the lower bridge (3) are coupled to each other whereby the upper bridge (2) and the lower bridge (3) can be positioned together with the aid of the said drive means (4a; 4b), and a second position in which the upper bridge (2) and the lower bridge (3) are disconnected from each other so that only the lower bridge (3) can be positioned with the aid of the drive means (4a; 4b).
The mechanical connection between the lower bridge (3) and the upper bridge (2) can be switched on or off at any position. The mechanical connection is realized by an adjustable mechanical locking element or by means of a connection based on friction (clamping on the basis of hydraulic machine clamps), possibly combined with this adjustable mechanical locking element. The mechanical locking element can be controlled electrically, hydraulically or pneumatically. It is thus possible to first position the upper bridge (2) in order to then switch off the mechanical connection and then bring the lower bridge (3) in position. Once the set position is reached, the lower bridge (3) and upper bridge (2) are locked in this position. To this end, the device (1) is provided with first clamping means (6).
In order to limit the deflection of the lower bridge (3) under load (during weaving) and thus achieve a good and uniform product quality, the center of the lower bridge (3) must be supported. To this end, the device (1) comprises second clamping means (7) which are provided for securing the lower bridge (3) between its two ends when the desired position is reached. This support is passive. With a passive support, it is understood within the scope of the invention that a certain center position can be secured, but the support cannot change this position itself. In the following we clarify this passive support.
To keep the deflection of the lower bridge (3) under control, there will also be a desired center position based on the desired positions of the ends of the lower bridge (3). The desired center position will always be related to the position of the ends of the lower bridge (3).
Optionally, in the center support system with the aid of the second clamping means (7), several second clamping means (7) are provided, spread over the distance between the ends of the lower bridge (3).
The center support is activated when the desired center position has been reached. The desired center position of the lower bridge is realized by moving the entire lower bridge up / down until the desired center position is reached. The center support is activated at this point and this center position is secured.
The previously described system of passive support can, as explained below, be expanded with an "active" component. By "active" is meant that the support can not only secure the middle position, but that this system is also able to change this position independently and independently of the ends of the lower bridge. This extension does require an additional (third) drive means that is positioned in the vicinity of the center and that is able to compensate for the deflection of the lower bridge in a simple way.
When the desired position of the lower bridge (3) and / or upper bridge (2) is reached, the position is secured by clamping the bridges against the supports via the first clamping means (6) and this for both ends. This means that every degree of freedom is removed. These supports are mounted against the chassis of the machine. The connection is largely based on friction.
This clamping can be achieved by manually adjusting bolt connections. An alternative to this are machine clamps that can be switched on and off automatically. The machine clamps work on the basis of hydraulic pressure or on the basis of a mechanical spring that can be hydraulically switched off.
The machine clamps move with the bridges, this is possible because there are slots in the supports and because the clamps can take different positions on the bridges.
The bridges are clamped during the operation of the machine, the clamps are only released to perform a positioning.
The load on the positioning system can be reduced by reducing the tension on the yarns during positioning of the upper bridge and / or the lower bridge and / or by adjusting the angle of the yarn with the horizontal plane. The machine control will lower the yarn tension on the lower and upper bridge prior to positioning and / or adjust the position of the weaving frames. After the positioning, these changes will be undone.
The tissue guiding device (1) according to the present invention can also be provided with position sensors (9) arranged on both sides of the device to measure either the distance of both the upper bridge (2) and the lower bridge (3) opposite the cutting knife (8), or to measure the distance between the upper bridge (2) and the lower bridge (3), or both. These measurement signals recorded by the position sensors (9) can be displayed within the field of view of the user (operator). During the adjustment of the bridges he can easily read which is the new bite height (in case of measuring the distance between the upper bridge (2) and lower bridge (3)) or what the new distance will be between the upper bridge (2) and the cutting knife ( 8) and / or between the lower bridge (3) and the cutting knife (8) (with a good setting these two distances should be almost the same). In this way the user immediately sees the effect of his adjustment and can stop it when he has reached the desired bite height and thus the resulting desired pile height. The position sensors used are, for example, contactless sensors such as, for example, based on a laser beam.
A processor unit can also be used to move over a specified distance via the drive means in combination with the signals from the position sensors, the upper bridge (2) and / or the lower bridge (3). The first (4a) and the second drive means (4b) are herein preferably controlled synchronously.
Furthermore, the tissue guiding device (1) can also be provided with one or more position sensors in the middle of the lower bridge. When the measurement signals from these position sensor (s) are displayed in combination with the desired center position of the lower bridge, the user can minimize the deflection of the lower bridge during the positioning of the lower bridge. If there are no position sensors in the middle of the lower bridge, the user can provide the processor unit with a (manual) measured value for the deflection of the lower bridge so that the deflection can be taken into account when moving the lower bridge and this as much as possible can be minimized.

权利要求:
Claims (15)
[1]
C O N C L U S I E S
A tissue guide device (1) for a double-piece weaving machine, comprising a cutting knife (8) and an upper bridge (2) and lower bridge (3) which can be adjusted at adjustable distances from each other and from the cutting knife (8) by means of driving means (4a; 4b) characterized in that the device (1) comprises coupling means (5) which are switchable between a first position, in which the upper bridge (2) and the lower bridge (3) are coupled to each other, whereby the upper bridge (2) and the lower bridge (3) can be positioned together with the aid of said drive means (4a; 4b), and a second position in which the upper bridge (2) and the lower bridge (3) are disconnected from each other so that only the upper bridge (2) or only the lower bridge (3) positionable with the aid of the drive means (4a; 4b).
[2]
A tissue guiding device (1) according to claim 1, characterized in that the lower bridge (3) is positionable in both the first and second position of the coupling means (5) and that said coupling means (5) are switchable between a first position in which the lower bridge (3) and upper bridge (2) are coupled to each other, so that they can be positioned together, and a second position in which only the lower bridge (3) can be positioned.
[3]
A tissue guiding device (1) according to claim 1 or 2, characterized in that the drive means (4a; 4b) comprise hydraulic or electric actuators.
[4]
A tissue guiding device (1) according to any one of the preceding claims, characterized in that the drive means (4a; 4b) comprise one or more screw means which are provided for positioning the upper bridge (2) and the lower bridge (3) relative to each other and with respect to the cutting knife, and that the drive means (4a; 4b) comprise at least one electric motor which is provided for rotating the screw means for the adjustment of said bridges (2; 3).
[5]
Tissue guiding device (1) according to one of the preceding claims, characterized in that the drive means comprise a first (4a) and second (4b) drive means, the first drive means (4a) being provided at one end of the bridge that is positionable when the coupling means are switched in their second position and that the second drive means (4b) is provided at the other end of this bridge.
[6]
The tissue guiding device (1) according to one of the preceding claims, characterized in that the tissue guiding device (1) comprises one or more position sensors (9) for determining the position of the upper bridge (2), the lower bridge (3) and the cutting knife (8).
[7]
The tissue guiding device (1) claim 6, characterized in that said position sensors (9) are provided at least at the ends of the upper bridge (2) and the lower bridge (3).
[8]
A tissue guiding device (1) claim 6 or 7, characterized in that said position sensors (9) are provided at least in the middle of the lower bridge (3).
[9]
The tissue guiding device (1) according to one of the preceding claims, characterized in that the device (1) comprises first clamping means (6) which are provided for releasing the upper bridge (2) and lower bridge (3) and in the adjusted position to fix.
[10]
The tissue guiding device (1) according to claim 9, characterized in that the device (1) comprises second clamping means (7) which are provided for releasing and re-securing the lower bridge (3) between its two ends when the desired position has been reached.
[11]
The tissue guiding device (1) according to claim 10, characterized in that the first (6) and / or second (7) clamping means comprise pneumatic, hydraulic or electric actuators.
[12]
Tissue guiding device (1) according to one of claims 9 to 11, characterized in that the first clamping means, respectively the first and / or second clamping means (7) are provided for connecting the upper bridge or the lower bridge (3) with the chassis of the weaving machine.
[13]
A double-piece weaving machine provided with a tissue guiding device (1) according to any one of claims 1 to 12.
[14]
Method for positioning a lower bridge (3) and / or an upper bridge (2) of a fabric guiding device (1) of a double-piece weaving machine, the upper bridge (2) and the lower bridge (3) of which are driven by means of drive means (4a; 4b) ) are positionable, characterized in that the tissue guiding device (1) further comprises coupling means (5) which are switchable between a first and a second position, that the coupling means (5) are switched in the first position, wherein the lower bridge (3) and the upper bridge (2) are coupled to each other to position the lower bridge (3) and the upper bridge (2) together, and that the coupling means (5) are switched to the second position, the lower bridge (3) and the upper bridge (2) be disconnected from each other so that only the upper bridge (2) or only the lower bridge (3) can be positioned with the aid of the drive means (4a; 4b).
[15]
Method according to claim 14, characterized in that the coupling means (5) is first switched in the first position to move both bridges (2, 3) together and then in the second position to only the upper bridge (2) or only the bring the lower bridge (3) to the desired position.

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EP1260621A1|2002-11-27|Device for separating warp yarns on a face-to-face weaving machine

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同族专利:

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公开号 | 公开日

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US20180073171A1|2018-03-15|

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CN107257870B|2019-10-18|

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BE1022813A9|2016-10-04|

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EP3268522A1|2018-01-17|

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CN107257870A|2017-10-17|

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BE1022813A1|2016-09-13|

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EP3268522B1|2019-05-29|

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WO2016142899A1|2016-09-15|

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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EP0316575A1|1987-10-12|1989-05-24|N.V. Michel Van de Wiele|Device to readjust the height of the cutting wire of a cutting mechanism in double plush looms|

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EP1471174A2|2003-04-23|2004-10-27|N.V. Michel Van de Wiele|Cutting device with symmetrical measurement of jaw|

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GB1127341A|1966-01-18|1968-09-18|G H Norton & Company Ltd|Improvements in or relating to woven pile products and the weaving thereof|

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CH594084A5|1974-10-29|1977-12-30|Patax Trust Reg|

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DE2659097C2|1976-12-27|1985-02-21|Girmes-Werke Ag, 4155 Grefrath|Device for separating double plush fabric webs|

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US4176692A|1978-08-21|1979-12-04|Cox Foundry & Machine Co.|Rotating driving mechanism for imparting reciprocatory motion to a driven element|

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FR2527654B1|1982-05-26|1985-03-15|Alsacienne Constr Meca|

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JPH0336545Y2|1983-06-30|1991-08-02|

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DE4306493A1|1993-03-03|1994-09-08|Genkinger Hebe Foerdertech|Method and device for straightening a transport carriage|

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EP1505182B1|2003-07-30|2007-05-23|Stäubli GmbH|Cutting device for cutting double pile fabrics|

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WO2007025394A1|2005-09-02|2007-03-08|Textilma Ag|Method for production of a velvet ribbon with double-sided nap and ribbon weaving machine for carrying out said method|

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CN101487161A|2009-02-20|2009-07-22|常州市悦腾机械有限公司|Double-layer flock grey fabric cutting passage symmetrical adjusting device|DE102018211531B4|2018-07-11|2020-03-05|Lindauer Dornier Gesellschaft Mit Beschränkter Haftung|Loom and method for guiding a fabric in a loom|

法律状态:

优先权:

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申请号 | 申请日 | 专利标题

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BE20155135A|BE1022813A9|2015-03-12|2015-03-12|ARRANGEMENT OF THE INTERCONNECTION OF THE WIDTHS OF A TISSUE GUIDANCE DEVICE|BE20155135A| BE1022813A9|2015-03-12|2015-03-12|ARRANGEMENT OF THE INTERCONNECTION OF THE WIDTHS OF A TISSUE GUIDANCE DEVICE|

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PCT/IB2016/051369| WO2016142899A1|2015-03-12|2016-03-10|Adjustment of the mutual position of the latitudinal parts of a fabric guiding device|

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CN201680012220.3A| CN107257870B|2015-03-12|2016-03-10|The adjustment of the mutual alignment of the latitude direction component of fabric introduction device|

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EP16713093.9A| EP3268522B1|2015-03-12|2016-03-10|Adjustment of the mutual position of the latitudinal parts of a fabric guiding device|

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US15/557,768| US20180073171A1|2015-03-12|2016-03-10|Adjustment of the mutual position of the latitudinal parts of a fabric guiding device|