CN109072500B - Shedding module for a weaving device - Google Patents
Shedding module for a weaving device Download PDFInfo
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- CN109072500B CN109072500B CN201780020951.7A CN201780020951A CN109072500B CN 109072500 B CN109072500 B CN 109072500B CN 201780020951 A CN201780020951 A CN 201780020951A CN 109072500 B CN109072500 B CN 109072500B
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- shed
- lever
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- lifting
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C3/00—Jacquards
- D03C3/24—Features common to jacquards of different types
- D03C3/32—Jacquard driving mechanisms
- D03C3/36—Griffe operating mechanisms
Abstract
Shed-forming module (1) for selectively moving shed-forming elements using lifting elements, wherein a plurality of shed-forming elements projected on a plane perpendicular to their direction of movement are adjacent to each other in a first direction and in a second direction perpendicular to the first direction, comprising a drive and transmission mechanism, wherein the drive mechanism (16) does not form part of the transmission mechanism (12, 13), and the lifting elements are coupled to the drive mechanism (16) by means of the first (12) and second (13) transmission mechanisms such that their movement profile and movement amplitude can be adjusted by means of the drive mechanism (16).
Description
Technical Field
The invention relates to a shedding module for selectively moving shedding elements using lifting elements, wherein a plurality of shedding elements projected on a plane perpendicular to their direction of movement are arranged adjacent to each other in a first direction and a second direction perpendicular to the first direction, wherein the shedding module comprises components according to the preamble of the first claim. Such a module is more particularly intended for open-shed jacquard machines having two or more positions.
The invention also relates to a weaving machine provided with such a shed-forming module or a jacquard machine provided with such a shed-forming module.
Background
When weaving a fabric on a loom, the warp yarns are positioned during successive weaving cycles relative to the level at which weft yarns are introduced in each cycle. In this case, the position of the warp yarns in the continuous weaving cycle is determined such that the weaving process produces a fabric with a predetermined weaving pattern. This positioning of the warp threads with respect to the weft insertion level on the weaving machine, known as shedding, is effected automatically by the shedding device or shedding module.
The known shed-forming device comprises one or more selection systems provided for selecting or not selecting one or more hooks. The hooks are selectively carried or not by lifting elements which are movable in the vertical direction and form part of a set of lifting elements consisting of at least two lifting elements which move up and down in pairs in antiphase. These lifting elements (knives) are driven by lifting means, such as a knife grid, according to an adjustable amplitude in an up-and-down movement in antiphase with respect to each other. The shed-forming device comprises at least two sets of picket fences which are moved up and down, for example on two opposite sides of the shed-forming device.
A number of mechanisms have been described for driving the movement of these grids. European patent application EP1705272 in the name of the applicant describes a jacquard device as shown in fig. 1, comprising at least two sets of grids moving up and down in phase opposition on two opposite sides of the jacquard device. In order to drive the movement of these knife grids, at least one drive rod is provided on both sides of the jacquard device, which is driven by a single-sided drive. In order to transmit the movement from the drive side to the driven side, a continuous pivot shaft is provided, which transmits the movement of the drive rod. In order to move the grids up and down in antiphase, the device comprises two oscillating rods (41a, 41 b; 42a, 42b) placed next to each other (viewed in the warp direction).
Another mechanism is described in EP 0297586; the jacquard device described in this publication comprises at least two sets of knives which can be moved up and down in phase opposition, wherein the ends of the knives which can be moved up and down in phase opposition are connected to different oscillation axes.
However, a disadvantage of the above-described system is that the amplitude of movement of the lifting element is in principle a fixed setting; if it is to be changed, it must be adjusted in various positions (at least three) in the system, these positions being responsible for transmitting the movement without producing undesired movement deviations and/or movement differences; this is labor intensive, resulting in a significant loss of time.
German patent publication DE2507486 describes a shed-forming module with a plurality of lifting elements that can be moved up and down, wherein each lifting element is driven individually. The amplitude of movement of the lifting elements in the system can be set individually for each lifting element, whereby changing the amplitude of movement of all lifting elements is a very time consuming activity.
Disclosure of Invention
It is therefore an object of the present invention to provide a shed-forming module which allows an easier and unambiguous adjustment of the amplitude of the movement.
The object of the invention is achieved by providing a shedding module for selectively moving shed-forming elements using lifting elements, wherein a plurality of shed-forming elements, when projected on a plane perpendicular to their direction of movement, are adjacent to each other in a first direction and a second direction perpendicular to the first direction, and comprising:
at least two sets of lifting elements that can move up and down in anti-phase;
a shed-forming element which is selectively movable together with said at least two sets of lifting elements;
at least four oscillating levers for moving the lifting elements up and down in phase and in phase opposition according to an adjustable amplitude of motion;
a first and a second transmission mechanism connected to the lifting element,
each of which comprises at least two of said oscillating levers arranged adjacent to each other in a first direction, and
-furthermore, each of them comprises a connection mechanism which connects together the oscillating levers of each transmission mechanism so that they have the same, almost the same or very similar amplitude of movement, and
each of which comprises means for transmitting motion from one to the other of at least two of said oscillating levers,
-wherein the first and second transfer mechanisms are adjacent to each other in a second direction;
a drive mechanism connected to the first and second transfer mechanisms,
wherein the drive mechanism does not form part of the transmission mechanism, and wherein the lifting element is coupled to the drive mechanism by means of a first and a second transmission mechanism, such that the motion profile and the motion amplitude of the lifting element can be adjusted by means of the drive mechanism.
Such a shed forming module has the great advantage that the magnitude of the movement amplitude of the lifting element can be adjusted completely by means of the drive mechanism, so that this amplitude of the lifting element can be adjusted without too much time loss without undesired movement deviations and/or movement differences.
Depending on the arrangement, the first direction may be a direction corresponding to the weft direction or a direction corresponding to the warp direction. Preferably, the first direction is the weft direction and the second direction is the warp direction.
In a preferred embodiment of the shedding module according to the invention, the drive mechanism comprises at least two adjusting devices, each of which is connected to a different transmission mechanism and each of which is used to independently adjust the amplitude of movement of the relevant transmission mechanism and which together determine the amplitude of movement of all shed-forming elements such that the amplitude of movement of all shed-forming elements in the first direction is the same and the amplitude of movement of all shed-forming elements in the second direction varies linearly. Preferably, the drive mechanism comprises a first and a second adjustment device, which are intended to be coupled to the first and second transmission mechanism, respectively. By means of these two adjusting means, the amplitude of the movement of the entire shed-forming module can be adjusted. In particular, the amplitude of movement of each oscillating lever is unambiguously determined by the amplitude of movement of the connected transmission mechanism.
According to a particular embodiment of the shed-forming module according to the invention, the drive mechanism comprises a first and a second drivable and adjustable four-bar mechanism, wherein the first four-bar mechanism is adapted to drive the rocking beam of the first transfer mechanism and the second four-bar mechanism is adapted to drive the rocking beam of the second transfer mechanism. Preferably, the drive mechanism comprises a main drive shaft, wherein the first and second four-bar mechanisms are mechanically coupled to the main drive shaft.
In order to adjust the amplitude of the lifting elements, in a more specific embodiment of the shed-forming module according to the invention each four-bar linkage comprises an adjusting means. For the sake of clarity, the first four-bar mechanism is provided with a first adjustment means, while the second four-bar mechanism is provided with a second adjustment means. Preferably, the adjustment device is configured as a rod of a four-bar mechanism, said rod having a slot in which the other rod of the respective four-bar mechanism is displaceable for adjusting the amplitude, or as a rod of a four-bar mechanism, said rod having a plurality of different coupling points to which the other rod of the four-bar mechanism can be coupled for adjusting the amplitude. By moving the fixing point of the respective bar of the four-bar mechanism in the slot, or by coupling it to another fixing point, the four-bar mechanism changes shape and therefore the transmission of motion from one bar to another.
According to a first particular embodiment of the shed-forming module according to the invention, the shed-forming module comprises two lifting means on two opposite sides of the module in a first direction, which lifting means can be moved up and down in opposite directions to move the lifting elements up and down, and each oscillating lever is connected to these lifting means by two links which can be moved up and down in opposite phases. Preferably, each oscillating lever comprises for this purpose a first and a second lever arm, each lever arm being intended to be connected to one end of one of the two connecting rods.
A lifting device, preferably a knife grid, is arranged on each side of the shed-forming module, so that on both the left and right sides in the shed-forming module (in the direction of the warp threads being fed, from the point of view of the loom) there are two knife grids which move up and down in phase opposition. In a more specific embodiment of the shed-forming module the first transfer mechanism comprises a first and a second oscillating lever and the second transfer mechanism comprises a third and a fourth oscillating lever, wherein the first and the third oscillating lever are adapted to move the lifting means up and down on one side of the module in anti-phase and the second and the fourth oscillating lever are adapted to move the lifting means up and down on the other side of the module in anti-phase, and wherein the first four-bar mechanism is adapted to drive the first oscillating lever by means of a first driving lever and the second four-bar mechanism is adapted to drive the third oscillating lever by means of a second driving lever.
Preferably, the connecting mechanism of the first transmission mechanism includes a second lever arm of a fifth swing lever and a second lever arm of a sixth swing lever that are connected to the first and second swing levers, respectively, and are connected together by a link, and wherein the connecting mechanism of the second transmission mechanism includes a second lever arm of a seventh swing lever and a second lever arm of an eighth swing lever that are connected to the third and fourth swing levers, respectively, and are connected together by a link. The fifth, sixth, seventh and eighth swing levers are each composed of first and second lever arms.
In particular, the first four-bar linkage is formed by the first adjustment device, the first driving lever and the first lever arm of the fifth swing lever, and the second four-bar linkage is formed by the second adjustment device, the second driving lever and the first lever arm of the seventh swing lever.
Thus, the first lever arm of the fifth swing lever forms a part of the first four-bar mechanism, and the second lever arm of the fifth swing lever forms a part of the link mechanism of the first transmission mechanism. The first lever arm of the seventh swing lever forms a part of the second four-bar mechanism, and the second lever arm of the seventh swing lever forms a part of the link mechanism of the second transmission mechanism. The two four-bar mechanisms form part of a drive mechanism.
In a second more specific embodiment of a shed-forming module according to the invention, the first and second four-bar mechanisms drive the first and second swingable shafts, respectively. In a preferred embodiment, the swingable shaft is subdivided into two parts. The first portion is connected to the first or second four-bar mechanism and is for imparting motion. Which forms part of the drive mechanism. Furthermore, the swingable shaft has a second part which extends at the shed-forming element. The second part forms part of a connecting mechanism which connects the rocking levers of each transfer mechanism together and in this function forms part of the transfer mechanism.
Preferably, each swingable shaft includes a plurality of swingable levers placed adjacent to each other, and each swingable lever is directly or indirectly connected to the lifting member through two links that can move up and down in opposite phases. The lifting element is preferably a knife.
Another subject of the invention relates to a jacquard machine provided with a shed-forming module according to the invention as described above. The jacquard is preferably an open-shed jacquard having two or more positions.
The invention also relates to a weaving machine provided with a shed-forming module according to the invention as described above. The weaving machine preferably comprises a jacquard machine according to the invention.
The invention will now be explained with reference to a detailed description of a number of possible embodiments of a shed-forming module according to the invention. The purpose of the present description is only to give a clear example and to indicate other advantages and features of the invention, which therefore should not be interpreted as a limitation of the field of application of the invention or of the patent rights claimed in the claims.
Drawings
In this detailed description, reference is made to the accompanying drawings by way of reference numerals, in which:
figure 1 is a schematic representation of a prior art shedding module described in EP 1705272;
figure 2 is a schematic view of a first embodiment of a shed-forming module according to the invention, wherein the module comprises two sets of lifting elements that can be moved up and down in phase opposition, and wherein the drive means of the drive mechanism is formed by a four-bar mechanism that can be actuated and adjusted;
figure 3 is a schematic view of a first embodiment of a shed-forming module according to the invention, wherein the module comprises a plurality of sets of lifting elements that can be moved up and down in antiphase;
figure 4 is a schematic view of a second embodiment of a shed-forming module according to the invention, wherein the module comprises two sets of lifting elements that can be moved up and down in antiphase, and wherein the drive means of the drive mechanism are designed for driving two swingable shafts;
figure 5 is a schematic view of a second embodiment of a shed-forming module according to the invention, wherein the module comprises a plurality of sets of lifting elements that can be moved up and down in antiphase;
figure 6 is a front view of the area a outlined in figure 4, on which two four-bar linkages are visible;
figure 7 is a diagram of another embodiment of the four-bar mechanism shown in figure 6.
Detailed Description
The shedding module (1) according to the invention is configured for selectively moving a shedding element using a lifting element, preferably in the form of a knife. The shed-forming elements are adjacent to each other in a first direction and in a second direction perpendicular to the first direction, when projected onto a plane perpendicular to their direction of movement. In the illustrated figures, the first direction is the weft direction and the second direction is the warp direction. Obviously, in another embodiment or other arrangement of the module (1), the first direction may be the warp direction and the second direction may be the weft direction.
The shed-forming module (1) according to the invention comprises:
at least two sets of lifting elements that can move up and down in anti-phase;
a shed-forming element which is selectively movable together with at least two sets of lifting elements;
at least four oscillating levers (4, 5; 6, 7) for moving the lifting elements up and down in phase and in phase opposition, depending on the adjustable amplitude of motion. Each oscillating lever (4, 5; 6, 7) is connected directly or indirectly to the lifting element by two connecting rods (19) which can move up and down in phase opposition in each case;
-first (12) and second (13) transmission means connected to the lifting element, each of which comprises at least two of said oscillating levers (4, 5; 6, 7) adjacent to each other in a first direction, and furthermore, which comprises connection means (14, 15) connecting together the oscillating levers (4, 5; 6, 7) of each transmission means (12, 13) so that these oscillating levers (4, 5; 6, 7) have almost the same amplitude of movement, and each of which comprises means for transmitting the movement from one to the other of at least two of said oscillating levers, wherein the first (12) and second (13) transmission means are adjacent to each other in a second direction;
a drive mechanism (16) connected to the first (12) and second (13) transmission mechanisms.
Within the context of the present invention, it is important to note that the drive mechanism (16) does not form part of the transmission mechanism (12, 13). The innovative feature of the shed-forming module (1) according to the invention is that the lifting element is coupled to the drive mechanism (16) by means of a first (12) and a second (13) transmission mechanism, so that the movement profile and the movement amplitude of the lifting element can be fully adjusted by means of the drive mechanism (16). The amplitude of movement of the two transmission mechanisms (12, 13) can be set by means of adjusting devices (17, 18), the adjusting devices (17, 18) forming part of the drive mechanism (16). The drive mechanism (16) therefore comprises at least two adjusting devices (17, 18). By means of the adjusting devices (17, 18), the movement amplitudes of the relevant transmission mechanisms can be set independently. The two adjusting devices (17, 18) together determine the amplitude of movement of all shed-forming elements such that the amplitude of movement of all shed-forming elements in the first direction is the same and the amplitude of movement of all shed-forming elements varies linearly in the second direction. By means of the two adjusting devices (17, 18), the amplitude of the movement of the entire shed-forming module can be set.
In a first embodiment of a shed-forming module (1) according to the invention, as shown in fig. 2, the lifting elements (26) are moved up and down in antiphase by two lifting devices (2, 3) which are movable up and down in antiphase and which in this embodiment are arranged on the left and right sides in the direction of the warp threads fed from the point of view of the loom in the form of grids located on two opposite sides of the module (1). In order to move the lifting devices (2, 3) up and down in phase opposition, each oscillating lever (4, 5; 6, 7) is connected to the lifting devices (2, 3) by two links (19) that can move up and down in phase opposition. To this end, each oscillating lever (4, 5; 6, 7) comprises a first (4a, 5a, 6a, 7a) and a second (4b, 5b, 6b, 7b) lever arm, each for connection to one end of one of the two connecting rods (19).
The first transfer mechanism (12) is located at the front of the module (1) (in the direction of the warp threads fed from the point of view of the loom) and comprises a first (4) and a second (5) oscillating lever. The second transfer mechanism (13) is located at the rear of the module (1) and comprises a third (6) and a fourth (7) oscillating lever. With this arrangement of the transfer mechanisms (12, 13) and as shown in fig. 2, the first (4) and third (6) swing levers are used to move the lifting devices (2, 3) up and down in phase opposition on the right side of the module (1), and the second (5) and fourth (7) swing levers are used to move the lifting devices (2, 3) up and down in phase opposition on the left side of the module (1).
The driving mechanism (16) used in the present invention comprises first and second drivable and adjustable four-bar mechanisms, wherein the first four-bar mechanism is used for driving the oscillating bar of the first transmission mechanism (12), and the second four-bar mechanism is used for driving the oscillating bar of the second transmission mechanism (13). The drive mechanism further comprises a primary drive shaft, wherein the first and second four-bar mechanisms are mechanically coupled to the primary drive shaft.
In the device shown in fig. 2, the first four-bar linkage is connected to the first oscillating lever (4), and the second four-bar linkage is connected to the third oscillating lever (6). Since the first oscillating lever (4) is connected to one end of the lifting devices (2, 3) mounted on one side, for example the right side of the module (1) (in the direction of the warp fed from the point of view of the loom), and since the third oscillating lever (6) is connected to the other end of the same lifting device (2, 3), the two four-bar linkages are responsible for actuating the movements of these lifting devices.
In the shedding module (1) according to the invention, the amplitude of the movement of the lifting element is set completely by the drive mechanism (16), so that the amplitude of the lifting element can be adapted without losing too much time without undesired movement deviations and/or movement differences.
As mentioned above, the shed-forming module (1) shown in fig. 2 comprises two lifting devices (2, 3) in the form of grids that can be moved up and down in antiphase on two opposite sides of the module (1), on the left and right sides in the direction of the warp threads being fed from the point of view of the loom. In order to actuate these grids (2, 3) on the front and rear of the module (1), in the direction of the warp threads fed, seen from the loom, a corresponding actuatable and adjustable four-bar mechanism is used. The four-bar mechanism is here formed on the front part by: a first adjustment device (17), a first driving lever (20) and a first lever arm (8a) connected to the first oscillating lever (4) and belonging to the fifth oscillating lever (8), while the four-bar linkage at the rear is formed by: a second adjustment device (18), a second driving lever (21) and a first lever arm (10a) connected to the third oscillating lever (6) and belonging to the seventh oscillating lever (10). The fifth (8) and seventh (10) oscillating levers are each composed of a first (8a, 10a) and a second (8b, 10b) lever arm.
-a first (17, 20, 8a) and a second (18, 21, 10a) four-bar mechanism activation movement; they are mechanically coupled at one end to a main drive shaft driven by a motor. The mechanical coupling is performed by means of elements (17, 18), the elements (17, 18) being provided with a groove in which the drive rod (20, 21) is retained. In an alternative embodiment and as shown in fig. 2 and 3, instead of slots, separate coupling points may be provided to which the drive rods (20, 21) may be coupled. These two elements form a first and a second adjusting device (17, 18). The amplitude can be varied by changing the position of the drive rod (20, 21) in the slot or by fixing the drive rod (20, 21) to another coupling point (23) on the relevant element (17, 18).
The two four-bar mechanisms stand through the other ends of the two four-bar mechanisms which are connected with the first swinging rod (4) and the third swinging rod (6) respectively. For this purpose, the connection mechanism (14) of the first transmission mechanism (12) comprises a second lever arm (8b) connected to the first oscillating lever (4) and belonging to the fifth oscillating lever (8), and the connection mechanism (15) of the second transmission mechanism (13) comprises a second lever arm (10b) connected to the third oscillating lever (6) and belonging to the seventh oscillating lever (10). The first swing lever (4), the first lever arm (8a) of the fifth swing lever (8) and the second lever arm (8b) of the fifth swing lever (8) may be separate components rigidly coupled together. They may also be integrally formed as one piece, as shown in fig. 2. The third swing lever (6), the first lever arm (10a) of the seventh swing lever (10) and the second swing arm (10b) of the seventh swing lever (10) are preferably manufactured in the same way as separate parts rigidly connected together or as one part. The first four-bar linkage is connected to the second lever arm (8b) of the fifth swing lever (8), and the second four-bar linkage is connected to the second lever arm (10b) of the seventh swing lever (10).
In order to transmit the movement to the other side of the module (1), the second lever arm (8b) of the fifth swing lever (8) and the second lever arm (10b) of the seventh swing lever (10) are connected to the second lever arm (9b) of the sixth swing lever (9) and the second lever arm of the eighth swing lever (11) respectively by a connecting rod (22). The sixth pivoting lever (9) thus forms part of the connection (14) of the first transmission mechanism (12), and the eighth pivoting lever (11) forms part of the connection (15) of the second transmission mechanism (13).
The embodiment of the shed-forming module (1) according to the invention shown in fig. 3 also uses the four-bar mechanism described above. However, the difference is that the lifting element (26) (knife) is rotated 90 ° relative to the structure of the lifting element used in fig. 2. As a result, there is no knife grid, but the lifting element (26) is directly connected to the oscillating lever of the transmission mechanism (12, 13) by a connecting rod.
Instead of using two adjustable and drivable four-bar mechanisms for directly driving the first (4) and third (6) oscillating bars, two swingable shafts (24, 25) may be used, each of which is driven by a drive bar of a different four-bar mechanism. This embodiment of the shed-forming module (1) is shown in fig. 4 and 5. Here, the shedding module (1) depicted in fig. 4 comprises on its two opposite sides of the module (1), on the left and right sides of the module (1) in the direction of the warp threads fed in from the point of view of the loom, two lifting devices (2, 3) which can be moved up and down in phase opposition in the form of a knife grid. In order to drive the movement of these grids (2, 3) on the front and rear of the module (1), in the direction of the warp threads fed, seen from the loom, respective swingable shafts (24, 25) are used, which are connected to the ends of the grids (2, 3) by means of swing elements and links (19).
Also in the embodiment of the shed-forming module (1) according to the invention shown in fig. 5, two swingable shafts are used. However, the difference is that the lifting element (26) (knife) is rotated 90 ° relative to the structure of the lifting element shown in fig. 4. As a result, there is no longer a knife grid, but the lifting element is directly connected to the oscillating lever of the transmission mechanism (12, 13) by means of a connecting rod (19). In this case, a plurality of oscillating levers are disposed adjacent to each other on the swingable shafts (24, 25).
The swingable shaft (24, 25) is subdivided into two parts: a first part connected to the first drive means (20) or the second drive means (21) and for imparting a motion. The first part of each swingable shaft forms a part of the drive mechanism (16). Furthermore, each swingable shaft (24, 25) comprises a second part which extends at the shed-forming element and forms a connection mechanism which connects together the swing levers of each transfer mechanism. In this function, the second part of each swingable shaft forms a part of the transmission mechanism (12).
Two four-bar mechanisms are provided in the housing and enable the swingable shafts (24, 25) to move. Fig. 6 shows two four-bar mechanisms. Fig. 7 shows another embodiment of the four-bar mechanism shown in fig. 6. In both embodiments, the amplitude is adjusted by means of two adjustment devices (17, 18) which change the position of the bars in the four-bar mechanism. By this change in position, the pivoting movement of the pivotable shafts (24, 25) is changed. In the embodiment shown, the adjustment device is located within the housing. However, it is entirely possible to provide the adjustment means outside the housing.
The first part of the swingable shaft (24) forms a part of the drive mechanism (16) and is driven by the first drive device (20) through the first four-bar mechanism. The swingable shaft (24) is connected to a first drive means (20) by means of a connecting element forming part of the first four-bar linkage, the first drive means (20) in turn being connected to a main drive shaft driven by a motor by means of a link comprising two adjusting means (17, 18). The mechanical coupling point of the main drive shaft to the above-mentioned connecting rod divides the connecting rod into two parts. One part contains the adjusting device (17) and the other part contains the adjusting device (18). The part connected to the driving device (20), to which the driving device (20) is connected by means of the adjusting device (17), forms part of a first four-bar mechanism. This part thus forms, together with the first drive (20) and the connecting element between the swingable shaft (24) and the first drive (20), a first four-bar mechanism. By moving the position of the coupling point of the first drive means (20) on the connecting rod by means of the adjusting means (17), the amplitude of the swingable shaft (24) can be adjusted.
The first part of the swingable shaft (25) is driven by the second driving device (21) through the second four-bar linkage. The second drive (21) is connected to the main drive shaft by the same linkage as the first drive (20), which connection is now effected by the adjustment device (18). The second four-bar linkage and the second drive (21) further comprise a connecting element between the swingable shaft (25) and the second drive (21), and a second part of the connecting rod. By moving the position of the coupling point of the second drive means (21) on the connecting rod by means of the adjusting means (18), the amplitude of the swingable shaft (25) can be adjusted.
Claims (19)
1. Shedding module (1) for selectively moving shedding elements using lifting elements, wherein a plurality of shedding elements, as projected on a plane perpendicular to their direction of movement, are adjacent to each other in a first direction and a second direction perpendicular to the first direction, comprising:
at least two sets of lifting elements that can move up and down in anti-phase;
a shed-forming element which is selectively movable together with said at least two sets of lifting elements;
at least four oscillating levers (4, 5; 6, 7) for moving the lifting elements up and down in phase and in phase opposition according to an adjustable amplitude of motion;
-one first transfer mechanism (12) and one second transfer mechanism (13), the one first transfer mechanism (12) and the one second transfer mechanism (13) being connected to each of the two sets of lifting elements,
-each of which comprises at least two of said oscillating levers (4, 5; 6, 7) arranged adjacent to each other in a first direction, and
-furthermore, each of them comprises a connection mechanism (14, 15) which connects together the oscillating levers (4, 5; 6, 7) of each transmission mechanism (12, 13) so that the oscillating levers (4, 5; 6, 7) have almost the same amplitude of movement and
each of which comprises means for transmitting motion from one to the other of at least two of said oscillating levers,
-wherein the first (12) and second (13) transfer means are adjacent to each other in a second direction;
-a drive mechanism (16) connected to the first (12) and second (13) transmission mechanisms,
characterized in that the drive mechanism (16) does not form part of the transmission mechanism (12, 13) and the lifting element is coupled to the drive mechanism (16) by means of a first (12) and a second (13) transmission mechanism, so that the motion profile and the motion amplitude of the lifting element can be adjusted by means of the drive mechanism (16).
2. The shed-forming module (1) according to claim 1, characterized in that the drive mechanism (16) comprises at least two adjusting devices (17, 18), each of which is connected to a different transmission mechanism (12, 13) and each of which is used to independently adjust the amplitude of movement of the relevant transmission mechanism and which together determine the amplitude of movement of all shed-forming elements such that the amplitude of movement of all shed-forming elements in the first direction is the same and the amplitude of movement of all shed-forming elements in the second direction varies linearly.
3. Shed-forming module (1) according to claim 1 or 2, characterized in that the amplitude of movement of each rocking lever (4, 5; 6, 7) is unambiguously determined by the amplitude of movement of the connected transmission mechanism (12, 13).
4. Shed forming module (1) according to claim 1 or 2, characterized in that the drive mechanism (16) comprises a first and a second drivable and adjustable four-bar mechanism, wherein the first four-bar mechanism is adapted to drive the oscillating rod (4, 5) of the first transmission mechanism (12) and the second four-bar mechanism is adapted to drive the oscillating rod (6, 7) of the second transmission mechanism (13).
5. A shed-forming module (1) according to claim 4, characterized in that the drive mechanism (16) comprises a main drive shaft, wherein the first and second four-bar mechanisms are mechanically coupled to the main drive shaft.
6. A shed-forming module (1) according to claim 4, characterized in that the first four-bar mechanism is provided with a first adjusting means (17) and the second four-bar mechanism is provided with a second adjusting means (18).
7. The shed-forming module (1) according to claim 6, characterized in that the adjusting means (17, 18) are configured as levers of the four-bar mechanism, which levers have slots in which the other lever (20, 21) of the respective four-bar mechanism is displaceable for adjusting the amplitude, or as levers of the four-bar mechanism, which levers have a plurality of different coupling points (23) to which the other lever (20, 21) of the four-bar mechanism can be coupled for adjusting the amplitude.
8. A shed-forming module (1) according to claim 6, characterized in that the shed-forming module (1) comprises two lifting means (2, 3) on two opposite sides of the module (1), which lifting means can be moved up and down in opposite directions to move the lifting element (26) up and down, and that each rocking lever (4, 5; 6, 7) is connected to these lifting means (2, 3) by two connecting rods (19) which can be moved up and down in opposite phases.
9. Shed-forming module (1) according to claim 8, characterized in that each oscillating lever (4, 5, 6, 7) comprises a first (4a, 5a, 6a, 7a) and a second (4b, 5b, 6b, 7b) lever arm, each lever arm being intended to be connected to one end of one of the two connecting rods (19).
10. The shed-forming module (1) according to claim 8, characterized in that the first transfer mechanism (12) comprises a first (4) and a second (5) oscillating lever, the second transfer mechanism (13) comprises a third (6) and a fourth (7) oscillating lever, the first (4) and third (6) oscillating levers being used for moving the lifting means (2, 3) up and down in phase opposition on one side of the module (1), the second (5) and fourth (7) oscillating levers being used for moving the lifting means (2, 3) up and down in phase opposition on the other side of the module (1), and the first four-bar mechanism being used for driving the first oscillating lever (4) by means of a first driving lever (20), the second four-bar mechanism being used for driving the third oscillating lever (6) by means of a second driving lever (21).
11. The shed-forming module (1) according to claim 8, characterized in that the connecting mechanism (14) of the first transfer mechanism (12) comprises a second lever arm (8b) of a fifth swing lever (8) and a second lever arm (9b) of a sixth swing lever (9) connected to the first and second swing levers, respectively, and connected together by a connecting rod (22), and the connecting mechanism (15) of the second transfer mechanism (13) comprises a second lever arm (10b) of a seventh swing lever (10) and a second lever arm of an eighth swing lever (11) connected to the third (6) and fourth (7) swing levers, respectively, and connected together by a connecting rod (22).
12. The shed-forming module (1) according to claim 11, characterized in that the first four-bar linkage is formed by the first adjusting device (17), the first driving lever (20) and the first lever arm (8a) of the fifth oscillating lever (8), and the second four-bar linkage is formed by the second adjusting device (18), the second driving lever (21) and the first lever arm (10a) of the seventh oscillating lever (10).
13. A shed-forming module (1) according to claim 4, characterized in that the first and second four-bar mechanisms drive a first (24) and a second (25) swingable shaft, respectively.
14. The shed-forming module (1) according to claim 13, characterized in that each swingable shaft comprises a plurality of swing levers placed adjacent to each other and each swing lever is connected to the lifting element by two connecting rods (19) that can move up and down in phase opposition.
15. The shed-forming module (1) according to claim 13, characterized in that the connecting means (14, 15) are formed by a part of the swingable shaft (24, 25).
16. Jacquard machine provided with a shedding module (1) according to any one of claims 1 to 15.
17. The jacquard machine according to claim 16, wherein the jacquard machine is an open-shed jacquard machine having two or more positions.
18. Weaving machine provided with a shed-forming module (1) according to any one of claims 1 to 15.
19. Weaving machine according to claim 18, characterized in that the weaving machine comprises a jacquard machine according to claim 17.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE2016/5242A BE1024029B1 (en) | 2016-04-08 | 2016-04-08 | GAAP FORMAT FOR A WEAVING DEVICE |
| BE2016/5242 | 2016-04-08 | ||
| PCT/IB2017/052049 WO2017175204A1 (en) | 2016-04-08 | 2017-04-10 | Shed-forming module for a weaving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109072500A CN109072500A (en) | 2018-12-21 |
| CN109072500B true CN109072500B (en) | 2020-09-22 |
Family
ID=56014731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780020951.7A Active CN109072500B (en) | 2016-04-08 | 2017-04-10 | Shedding module for a weaving device |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP3440247B1 (en) |
| KR (1) | KR102402821B1 (en) |
| CN (1) | CN109072500B (en) |
| BE (1) | BE1024029B1 (en) |
| ES (1) | ES2886623T3 (en) |
| PT (1) | PT3440247T (en) |
| WO (1) | WO2017175204A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941194B (en) * | 2022-05-16 | 2023-08-04 | 江苏谦尔乐实业有限公司 | Jacquard loom jacquard head transmission device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH590945A5 (en) * | 1975-01-31 | 1977-08-31 | Sulzer Ag | |
| DE3721932A1 (en) | 1987-07-02 | 1989-01-19 | Grosse Webereimaschinen Gmbh | DOUBLE LIFT OPEN-PACK JACQUARD MACHINE |
| FR2736939B1 (en) * | 1995-07-18 | 1997-09-05 | Staubli Sa Ets | MECHANICAL JACQUARD ACTUATED BY COAXIAL SHAFTS |
| CN2506662Y (en) * | 2001-10-17 | 2002-08-21 | 常熟纺织机械厂有限公司 | Gearing mechanism for griff of jacquard |
| FR2854642B1 (en) * | 2003-05-06 | 2005-07-08 | Staubli Lyon | CROWN FORMING DEVICE AND JACQUARD TYPE WEAVING EQUIPPED WITH SUCH A DEVICE |
| BE1016559A4 (en) * | 2005-03-21 | 2007-01-09 | Wiele Michel Van De Nv | JACQUARD DEVICE. |
| BE1016486A4 (en) * | 2005-04-08 | 2006-12-05 | Wiele Michel Van De Nv | JACQUARD DEVICE. |
-
2016
- 2016-04-08 BE BE2016/5242A patent/BE1024029B1/en not_active IP Right Cessation
-
2017
- 2017-04-10 PT PT177228756T patent/PT3440247T/en unknown
- 2017-04-10 CN CN201780020951.7A patent/CN109072500B/en active Active
- 2017-04-10 EP EP17722875.6A patent/EP3440247B1/en active Active
- 2017-04-10 WO PCT/IB2017/052049 patent/WO2017175204A1/en active Application Filing
- 2017-04-10 KR KR1020187031579A patent/KR102402821B1/en active IP Right Grant
- 2017-04-10 ES ES17722875T patent/ES2886623T3/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| PT3440247T (en) | 2021-09-08 |
| KR102402821B1 (en) | 2022-05-26 |
| CN109072500A (en) | 2018-12-21 |
| EP3440247B1 (en) | 2021-07-14 |
| KR20180124139A (en) | 2018-11-20 |
| WO2017175204A4 (en) | 2017-11-30 |
| WO2017175204A1 (en) | 2017-10-12 |
| EP3440247A1 (en) | 2019-02-13 |
| BE1024029A1 (en) | 2017-10-31 |
| BE1024029B1 (en) | 2017-11-06 |
| ES2886623T3 (en) | 2021-12-20 |
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