BE1024363B1 - Blocking device and shedding unit for a weaving machine - Google Patents

Abstract

Blocking device with a number of blocking elements (41), wherein each blocking element (41) is assigned to one drive mechanism (2), wherein each blocking element (41) is movable between a weaving site and a blocking place, wherein each blocking element (41) cooperates in its blocking place with the allocated drive mechanism (2) to prevent movement of the first reversing lever (6) of the drive mechanism (2) beyond the setting position to the lower position, and wherein in a plane perpendicular to the common reversing axis (7) the blocking location of at least one first blocking element of the number of blocking elements (41) differs from the blocking location of at least one second blocking element of the number of blocking elements (41). Shedding unit for a weaving machine with such a blocking device.

Description

(30) Priority data:

(73) Holder (s):

PICANOL NV 8900, IEPER Belgium (72) Inventor (s):

CAFMEYER Sven 8900 IEPER Belgium

GEERARDYN Geert 8950 NIEUWKERKE Belgium (54) Blocking device and shed-forming unit for a weaving machine (57) Blocking device with number of blocking elements (41), each blocking element (41) being assigned to one drive mechanism (2), each blocking element (41) being movable between a weaving site and a blocking site, each blocking element (41) interacting in its blocking location with the assigned driving mechanism (2) to prevent movement of the first reversing lever (6) of the driving mechanism (2) beyond the setting position to the lower position, and wherein in a plane perpendicular to the common reversing axis (7) the blocking location of at least one first blocking element of the number of blocking elements (41) differs from the blocking location of at least one second blocking element of the number of blocking elements (41). Shed-forming unit for a weaving machine with such a blocking device.

41.2 '

41.15 Fig.

BELGIAN INVENTION PATENT

FPS Economy, K.M.O., Self-employed & Energy

Intellectual Property Office

Publication number: 1024363 Filing number: BE2016 / 0124

International classification: D03C 1/14 Date of issue: 05/02/2018

The Minister of Economy,

Having regard to the Paris Convention of 20 March 1883 for the Protection of Industrial Property;

Having regard to the Law of March 28, 1984 on inventive patents, Article 22, for patent applications filed before September 22, 2014;

Having regard to Title 1 Invention Patents of Book XI of the Economic Law Code, Article XI.24, for patent applications filed from September 22, 2014;

Having regard to the Royal Decree of 2 December 1986 on the filing, granting and maintenance of inventive patents, Article 28;

Having regard to the application for an invention patent received by the Intellectual Property Office on 08/07/2016.

Whereas for patent applications that fall within the scope of Title 1, Book XI, of the Code of Economic Law (hereinafter WER), in accordance with Article XI.19, § 4, second paragraph, of the WER, the granted patent will be limited. to the patent claims for which the novelty search report was prepared, when the patent application is the subject of a novelty search report indicating a lack of unity of invention as referred to in paragraph 1, and when the applicant does not limit his filing and does not file a divisional application in accordance with the search report.

Decision:

Article 1

PICANOL NV, Steverlyncklaan 15, 8900 IEPER Belgium;

represented by

CARDOEN Marnick, Steverlyncklaan 15, 8900, YPRES;

a Belgian invention patent with a term of 20 years, subject to payment of the annual fees as stipulated in Article XI.48, § 1 of the Code of Economic Law, for: Blocking device and shed forming unit for a weaving machine.

INVENTOR (S):

CAFMEYER Sven, Zwaluwlaan 2, 8900, YPRES;

GEERARDYN Geert, Steenwerkstraat 19, 8950, NIEUWKERKE;

PRIORITY:

BREAKDOWN:

Split from basic application: Filing date of the basic application:

Article 2. - This patent is granted without prior investigation into the patentability of the invention, without warranty of the Merit of the invention, nor of the accuracy of its description and at the risk of the applicant (s).

Brussels, 05/02/2018,

With special authorization:

BE2016 / 0124

Blocking device and shed-forming unit for a weaving machine.

Technical field and state of the art.

The invention relates to a yaw-forming mechanism of a weaving machine adapted to block movement of weaving frames of the shed-forming mechanism during adjustment. The invention further relates to a shed-forming unit with a blocking device and a shed-forming mechanism and a weaving machine containing a shed-forming unit.

JP 3988273 B2 shows a shed-forming unit for a weaving machine with a shed-forming mechanism comprising a number of weaving frames and a number of driving mechanisms, each driving mechanism being assigned to one weaving frame and comprising a coupling rod, a first reversing lever with a first arm, a second arm and a third arm, a second reversing lever, and a transmission rod, wherein the coupling rod is connected to the first arm of the first reversing lever, the second reversing lever is connected to the third arm of the first reversing lever, with the weaving frame, to which the drive mechanism is assigned coupled to the second arm of the first reversing lever and the second reversing lever, and wherein all the first reversing levers are pivotable about a common reversing axis between an upper position and a lower position. The

BE2016 / 0124 shed forming unit further comprises a leveling device with a rod, the rod being movable in a leveling location in which the rod is arranged parallel to the common reversing axis of the first reversing levers in the movement paths of the second arms of the reversing levers for movement of the first reversing levers towards their lower positions, where when the second arms of the first reversing levers strike the rod, the weaving frames are leveled, this means that all weaving frames are at the same height.

JP 4610137 B2 shows a shed forming mechanism comprising a number of weaving frames and a number of driving mechanisms, each driving mechanism being assigned to one weaving frame and comprising a coupling rod, a first reversing lever with a first arm, a second arm and a third arm, a second reversing lever, and a transmission rod, wherein the coupling rod is adaptably connected in location to the first arm of the first reversing lever by means of a mounting member and the weaving frame to which the drive mechanism is assigned is coupled to the second arm of the first reversing lever, with all the first reversing levers and again pivotable about a common reversing axis between an upper position and a lower position.

Summary of the invention.

It is an object of the invention to provide a yaw-forming mechanism blocking device

BE2016 / 0124 containing a drive mechanism, wherein a coupling rod is adaptably connected in location to a first arm of a first reversing lever by means of a mounting element, the blocking device allows for easy access to the coupling elements during adjustment, while weaving frames of the shed-forming mechanism held securely in place without actuation of a drive motor assigned to the shed forming mechanism. It are further objects of the invention to provide a safe shed-forming unit and to provide a weaving machine with a respective shed-forming unit.

According to a first aspect, a shed-blocking device is provided with a weaving machine, the shed-forming mechanism comprising a number of weaving frames and a number of driving mechanisms, each driving mechanism being allocated to one weaving frame and at least one coupling rod and a first reversing lever with a first arm and includes a second arm, the coupling rod being adaptably connected in location to the first arm of the first reversing lever by means of a mounting member and the weaving frame to which the drive mechanism is assigned coupled to the second arm of the first reversing lever, all first reversing levers are pivotable about a common reversing axis between an upper position and a lower position, each first reversing lever being pivotable in an adjustment position to adjust the location of the associated coupling rod relative to the first arm of the first reversing lever, and d The blocking device comprises a number of blocking elements, each

BE2016 / 0124 bi-turning element is assigned to one driving mechanism, each bi-turning element being movable between a weaving site and a blocking location, each bi-turning element in its blocking location co-operating with the allocated driving mechanism to move the first reversing lever of said driving mechanism beyond the setting position to the lower position and, in a plane perpendicular to the common reversing axis, the blocking location of at least one first biocoupling element of the number of blocking elements differs from the blocking location of at least one second biocoupling element of the number of blocking elements.

Downward movement of the weaving frames is prevented by means of the blocking device, while gravity acts against an upward movement. For easy access to the coupling elements provided on the first arms of the first reversing levers, it is desirable to position all the first arms in a suitable position. Particularly in case the shed forming mechanism includes first reversing levers that differ in design, for example in the angle between the first arm and the second arm, when leveling all the second arms as known in the art, a first arm can be further first Shield or hide arms downstream in an access direction, thereby preventing or avoiding access to these further first arms downstream in the access direction.

To ensure that for one set all first

BE2016 / 0124 arms are in a suitable adjustment position, a blocking device with blocking elements is conceivable, wherein the blocking elements in the blocking location cooperate with the first arms, and wherein all the blocking elements in the blocking location are at least mainly aligned in a direction parallel to the reversing axis or so each first arm of the first reversing levers in an access direction is further away or at the same distance from a virtual access face opposite the mounting members than any successive first arm.

Due to space constraints, the provision of blocking elements cooperating with the first arms is not always feasible. Therefore, according to the invention, blocking elements with different blocking locations are provided in a plane perpendicular to the reversing shaft, wherein in preferred embodiments the blocking elements are adapted to be joined together with the second arms of the first reversing levers and / or with further elements of the shed-forming mechanism, for example the weaving frames to work.

In one embodiment, each drive mechanism further includes a second reversing lever connected to the first reversing lever by means of a transmission rod, the locking elements adapted to interact with the second reversing levers, in particular with the first arms of the second reversing levers to which the transmission rods are connected, to prevent movement of the first reversing levers beyond the setting positions to the lower positions.

BE2016 / 0124 In preferred embodiments, blocking elements are provided on a common blocking component, which blocking component is movable to bring all the blocking elements together into their blocking locations. According to the invention, blocking elements with different blocking locations are provided in a plane perpendicular to the reversing axis. Therefore, the blocking component has a non-linear contact surface and / or a contact surface that is not parallel to the reverse shaft.

In preferred embodiments, the blocking component has at least one rib and / or at least one recess to form the at least one first blocking element and the at least one second blocking element, with the blocking location of the at least one first blocking element in a plane perpendicular to the common reversing axis differs from the blocking location of the at least one second blocking element. In one embodiment, the blocking component is a rod arranged parallel to the reversing shaft to introduce the blocking elements into the blocking locations, the rod being provided with circumferential grooves or notches to form blocking elements with different blocking positions in a plane perpendicular to the reversing shaft.

In preferred embodiments, the blocking component is a plate, wherein a narrow face of the plate is provided with at least one rib and / or at least one recess and the narrow face is adapted to interact with the drive mechanisms to allow movement of the

BE2016 / 0124 to prevent first reversing levers of the drive mechanisms beyond their setting positions towards their lower positions. In particular, in one embodiment, the plate has a front tooth profile, wherein adjacent teeth or ribs and recesses between the teeth or ribs function as blocking elements. A respective plate can be manufactured with great precision at low manufacturing costs.

In one embodiment, each blocking element or the blocking component is manually movable in the blocking location. For this purpose, a handle lever is provided in one embodiment, wherein the blocking elements are moved by means of the handle lever or the blocking component is moved in the blocking place against the force of a reset element. In preferred embodiments, the blocking component is movable by means of an actuator device to bring all the blocking elements together into and / or out of their blocking positions, in particular the blocking component is movable by means of the actuator device against the force of a reset element together about all the blocking elements in their blocking places. Regardless of the operational device, i.e. manual device or actuator, in preferred embodiments, the blocking elements form an over-center mechanism with the shed-forming mechanism, so that forces applied by the reset element are counteracted or exceeded by the forces acting on the blocking elements in contact with the shed-forming mechanism due to gravity acting on the shed forming mechanism and the manual force acting on

BE2016 / 0124 no longer requires the handle lever or actuator actuation to apply force to the reset member after the shed-forming mechanism engages the blocking members.

Also for simple design, in preferred embodiments, the blocking component is pivotable about a blocking component reversing shaft to bring all the blocking elements together into their blocking locations.

As mentioned above, in preferred embodiments, drive motors driving the weaving machine and / or the shed-forming mechanism are preferably deactivated to prevent accidental driving of the shed-forming mechanism or the weaving machine during adjustment. In order to always allow safe access to the coupling elements during adjustment, in preferred embodiments, a sensor device is provided in the weaving site and / or in the blocking site to detect the presence or absence of blocking elements, thereby preventing actuation of the drive mechanisms until all the blocking elements are in their weaving sites.

In a second aspect, a shed-forming unit for a weaving machine with a blocking device and a shed-forming mechanism is provided, the shed-forming mechanism comprising a number of weaving frames and a number of driving mechanisms, each driving mechanism being assigned to one weaving frame and

BE2016 / 0124 contains at least one coupling rod and a first reversing lever with a first arm and a second arm,  the coupling rod being adaptably connected in location to the first arm of the first reversing lever by means of a mounting member and the weaving frame to which the drive mechanism is assigned,  is coupled to the second arm of the first reversing lever,  all first reversing levers being pivotable about a common reversing axis between an upper position and a lower position,  each first reversing lever being pivotable in an adjustment position to adjust the location of the associated coupling rod relative to the first arm of the first reversing lever,  and wherein the blocking device comprises a number of blocking elements,  each blocking element is assigned to one drive mechanism,  each blocking element being movable between a weaving site and a blocking site,  the blocking element in the blocking location cooperating with the assigned driving mechanism to prevent movement of the first reversing lever of said driving mechanism beyond the setting position to the lower position,  wherein in a plane perpendicular to the reversing axis the blocking place of at least one first blocking element of the number of blocking elements differs from the blocking place of at least one second blocking element of the number of blocking elements,  wherein the first blocking element and the second blocking element are assigned to two actuators of the plurality of actuators with first reversing levers differing at an angle between the first arm and the second arm.

BE2016 / 0124 The blocking device is adapted to keep the shed-forming mechanism in an adjustment position, wherein in the adjustment position at least one weaving frame is not leveled with the remaining weaving frames. In one embodiment, the shed forming unit is additionally provided with a leveling device for holding all weaving frames and / or all driving mechanisms in a leveling position so that all weaving frames are leveled. Preferably, the leveling device includes a leveling device blocking element, which leveling device blocking element is movably mounted between a leveling device weaving site and a leveling device blocking site, wherein in the leveling device blocking site, the leveling device blocking element cooperates with the drive mechanisms to move from all first reversing positioners to the down position levers from the down position levers. to block.

In preferred embodiments, the first reversing levers are movable, from a position closer to the top position than the setting position to the bottom position, in the setting position after the blocking elements are moved into their blocking positions. In preferred embodiments, the shed forming unit can be controlled to move all the first reversing levers to their upper positions, then to move the locking elements into the blocking positions, and finally to move the first reversing levers to the lower position in the setting position, in which a further movement of the shed-forming mechanism is blocked by the blocking elements. As mentioned above, a movement of the

BE2016 / 0124 blocking elements in preferred embodiments caused by an actuator device. Preferably after the shed-forming mechanism strikes the blocking elements, the blocking elements are held in the blocking location by the forces applied by the shed-forming mechanism and the actuator device can be deactivated.

In one embodiment, the blocking elements cooperate with the first reversing levers to prevent movement of the first reversing levers beyond the setting positions to the lower positions. Depending on room specifications, the blocking elements in embodiments of the invention may cooperate with the first arm, the second arm and, if provided, any further arm of the first reversing levers and / or with the weaving frames.

In other embodiments, each drive mechanism further includes a second reversing lever connected to the first reversing lever by a transmission rod, the locking elements cooperating with the second reversing levers to allow movement of the first reversing levers beyond the setting positions to the lower positions. obstruct. The arrangement of the blocking elements on the opposite side of a weaving machine relative to the first reversing levers is particularly suitable for efficient use of available space specifications of known weaving machines.

As mentioned above, the blocking locations are selected so that the mounting elements are easily accessible

BE2016 / 0124 when all the first reversing levers are fitted in the setting positions. To this end, in an embodiment when all the first reversing levers are arranged in the adjustment positions, the first arms of all the first reversing levers are at least substantially aligned in a direction parallel to the common reversing axis. In other embodiments when all of the first reversing levers are disposed in the setting positions, the first arms of the first reversing levers are at least partially displaced from a virtual access plane opposite the mounting elements, in an access direction each first reversing lever is further away or the same distance from the virtual access plane then each successive first reversing lever.

In one embodiment, at least one drive motor separate from the main weaving machine motor is provided to drive the shed-forming mechanism. In preferred embodiments, the drive mechanisms are assigned to at least two different drive motors that are displaced in position relative to the reverse shaft. More particularly, in an embodiment, a number of drive motors are provided, each drive mechanism being assigned to an associated drive motor, the drive motors being arranged at least partly in different positions relative to the reverse shaft.

In a third aspect, a weaving machine is provided containing a shed forming unit as described above.

BE2016 / 0124

Short description of the drawings.

In the following, an embodiment of the invention is described in detail with reference to the drawings. Throughout the drawings, like elements are designated with like reference numbers.

Figure 1 shows a weaving frame and a shed forming mechanism drive mechanism.

Figure 2 shows a drive system for the shed-forming mechanism of Figure 1.

Figure 3 shows a detail III of the shed-forming mechanism of Figure 2, wherein first reversing levers are mounted in an adjustment position.

Figure 4 shows a blocking device for the shed-forming mechanism of Figure 1, the blocking elements being arranged in a blocking location.

Figure 5 shows the blocking device of Figure 4, wherein the blocking elements are arranged in a weaving place.

Figure 6 shows the yaw-forming mechanism blocker of Figure 1, with the blocking elements disposed in a weaving site.

Figure 7 shows the blocking device of Figure 6, wherein the blocking elements in one applied. blocking place to be Figure 8 shows the blocking device of figure 6 together with second reversing levers from it shed forming mechanism, at which the blocking elements in one blocking place to be

BE2016 / 0124 applied.

Figure 9 shows a second embodiment of a yaw-forming mechanism blocking device of Figure 1, wherein the blocking elements are mounted in a blocking location.

Figure 10 shows the blocking device of Figure 9, the blocking elements being arranged in a weaving site.

Figure 11 shows a leveling device for the shed-forming mechanism of Figure 1, wherein a leveling device biocasing element is arranged in a leveling device weaving site.

Figure 12 shows the leveling device of Figure 11, wherein the leveling device biocoupling element is arranged in a leveling device blocking place.

Detailed description of embodiments of the invention.

Figure 1 shows a weaving frame 1 and a driving mechanism 2 of a shed-forming mechanism 29. The shed-forming mechanism 29 comprises a number of weaving frames 1 and an equal number of driving mechanisms 2, one driving mechanism 2 being assigned to one weaving frame 1. The driving mechanisms 2 are driven by a drive system 30 shown in Figure 2.

The driving mechanism 2 for driving the weaving frame 1 shown in figure 1 comprises a crank 3 rotating around a crankshaft 4, a coupling rod 5, and a first reversing lever

6. The first reversing lever 6 can be pivoted back and forth

BE2016 / 0124 around a first reversing shaft 7, also called common reversing shaft 7, between an upper position and a lower position. The first reversing lever 6 has a first arm 8, a second arm 9 and a third arm 10, the second arm 9 being arranged between the first arm 8 and the third arm 10 at an angle of approximately 90 ° to the first arm 8 and the third arm 10. The drive mechanism 2 further includes a second reversing lever 11 pivotable about a second reversing shaft 12 between an upper position and a lower position. The second reversing lever 11 has a first arm 19 and a second arm 20 arranged at an angle of approximately 90 °. The first arm 19 is connected to the third arm 10 of the first reversing lever 6 by means of a transmission rod 13 and driven by the first reversing lever 6 to move together with the first reversing lever 6.

The weaving frame 1 is mounted on the second arm 9 of the first reversing lever 6 by means of a mounting arrangement comprising a lifting rod 14 and a fixing element 15 which is guided in the weaving machine. The weaving frame 1 is continued via a lifting rod. 14 and a fixation element 15 attached to the second arm 20 of the second reversing lever 11.

The coupling rod 5 of the driving mechanism 2 is connected to the crank 3 by a first hinge connection 16, which first hinge connection 16 is eccentric to the crankshaft

4. Furthermore, the coupling rod 5 is connected to the first arm 8 of the first reversing lever 6 by a second hinge connection

BE2016 / 0124

17.

A mounting element 18 is provided and the coupling rod 5 is adjustably mounted in location on the first arm 8 by means of the mounting element 18. In the illustrated embodiment, the mounting element 18 is slidably mounted on the first arm 8 of the first reversing lever 6 and attachable in a mounting position on the first arm 8. The coupling rod 5 is rotatably mounted on the mounting element 18 by the second hinge connection 17. In order to set a course of the weaving frame 1, a location of the second hinge connection 17 can be adjusted relative to the first arm 8 of the first reversing lever 6 by moving the mounting element 18 along the first arm 8. The closer the mounting element 18 and thus the location of the second hinge connection 17 is moved towards the first reversing shaft 7, the greater the course of the weaving frame 1. The further the mounting element 18 and thus the location of the second hinge connection 17 is moved away from the first reversing axis 7, the smaller the course of the weaving frame 1.

In order to avoid movement of the weaving frame 1 and / or the driving mechanism 2 during the adjustment of the shed-forming mechanism 29, this means when the course length is adjusted, a blocking device 40 is provided, which is schematically shown in figure 1 as a rectangle , which blocking device 40 in preferred embodiments for optimum use of mounting space is arranged to cooperate with the first arm 19 of the second reversing lever 11. Alternatively, as indicated by

BE2016 / 0124 in broken lines, the blocking device 40 can be arranged to cooperate with the third arm 10 of the first reversing lever 6 or with the second arm 20 of the second reversing lever 11. Due to space constraints, in the illustrated embodiment, an arrangement of a blocking device that interacts with the first arm 8 or the second arm 9 of the first reversing lever 6 is not technically rational with the shed-forming mechanism 29 shown in Figure 1. However, such an arrangement may be in other shed-forming mechanisms to be possible.

Figure 2 shows a front view of a drive system 30 for the shed forming mechanism 29 containing sixteen drive motors. Each driving motor is assigned to one driving mechanism 2 and one weaving frame 1. The driving motor, the associated driving mechanism 2 and the associated weaving frame 1 form a subsystem. After this, the reference numbers are related to elements 2, 3, 4, 5, 6, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 31 of the sixteen Subsystems with the extension .1 to .16.

A drive motor 31.1 to 31.16 (only 31.1 to 31.8 visible in Figure 2) is assigned to each of the drive mechanisms 2.1 to 2.16 (only 2.1 to 2.8 visible in Figure 2). Each crank 3.1 to 3.16 is driven by a separate drive motor 31.1 to 31.16. The crankshafts 4.1 to

4.16 of the drive mechanisms 2.1 to 2.16 are arranged in parallel, but spaced apart in the axial direction and / or perpendicular to the axial direction. The shed-forming mechanism 29 can have at least one pair

BE2016 / 0124 contain substantially identical drive mechanisms 2 with axially aligned crankshafts 4.1 to 4.16, the associated drive engines 31.1 to 3..1.16 being mounted on opposite sides of a housing 32. In other embodiments, all crankshafts 4.1 to 4.16 are spaced apart.

All reversing levers 6.1 to 6.16 are pivotable about a common reversing shaft 7. Due to different positions of the crankshafts 4.1 to 4.16, a distance between the first hinge connection 16.1 to 16.16 on the crank 3.1 to

3.16 and the second hinge joint 17.1 to 17.16 for the different Subsystems, thus the length of the coupling rods 5.1 to 5.16 differs for different actuators 2.1 to 2.16. Consequently, the first reversing levers 6.1 to 6.16 are individually designed for each drive mechanism 2.1 to 2.16, with first reversing levers

6.1 to 6.16 of Axial Aligned Crankshaft Subsystems

4.1 to 4.16 can have an identical design. For example, as shown in Figure 2, a first reversing lever 6.1 from the first reversing levers 6 from a second reversing lever 6.2 differs from the first reversing levers 6 at an angle between the respective first arm 8.1, 8.2 and the respective second arm 9.1, 9.2.

According to the invention, for setting the location of the associated coupling rod 5.1 to 5.16 relative to the first arm 8.1 to 8.16 of the first reversing lever 6.1 to 6.16, all first reversing levers 6.1 to 6.16 are brought into an adjustment position.

BE2016 / 0124 Figure 3 shows a detail III of a shed-forming mechanism of figure 2, wherein first reversing levers are arranged in an adjustment position.

The setting positions are selected such that when all first reversing levers 6.1 to 6.16 are mounted in the setting positions, the first arms 8.1 to 8.16 of all first reversing levers 6.1 to 6.16 - or as shown of the first reversing levers 6.2 to 6.16 with the exception of the front ones reversing lever 6.1 of the first reversing levers 6 - aligned at least substantially in a direction parallel to the reversing shaft 7. Alternatively, the adjustment positions are chosen so that when all the first reversing levers 6.1 to 6.16 are in the adjustment positions, the first arms 8.1 to 8.16 of the first reversing levers 6.1 to 6.16 are funnel-shaped, with all first reversing levers 6.1 to 6.16 at least partially of a virtual access face the mounting elements 18.1 to 18.16 are arranged displaced, wherein in an access direction 33 indicated by an arrow each first reversing lever 6.1 to 6.16 is further away or at the same distance from the virtual access plane than any successive first reversing lever 6.2 to 6.16. In other words, in the access direction, shielding of first arms 8.2 to 8.16 of successive first reversing levers 6.2 to 6.16 is avoided.

Adjustment of the location of the coupling rod 5.1 to

5.16 with respect to the associated first arm 8.1 to 8.16 of the first reversing lever 6.1 to 6.16 is performed, for example, with the aid of a tool 34 with a

BE2016 / 0124 adjustable alignment aid 35, which is mounted on a top of the first arms 8.1 to 8.16 during adjustment. In order to provide sufficient access space for a user performing the adjustment, the adjustment positions in preferred embodiments are selected close to the upper positions of the first reversing levers 6.1 to 6.16, the first reversing levers 6.1 to 6.16 being rotated away from the fixation member 15 . However, the adjustment positions are preferably separate from the upper positions to allow relative movement between the blocking device 40 and the shed-forming mechanism 29 as will be explained below.

Figures 4 and 5 show a perspective view from above of a portion of a shed-forming unit containing a blocking device 40 and a shed-forming mechanism 29, which portion is mounted on the weaving machine opposite the drive system 30 shown in Figure 2. More specifically, Figures 4 and 5 show the second reversing levers 11.1 to 11.16 of the shed forming mechanism 29 and the blocking device 40, which in the illustrated embodiment is adapted to cooperate with the second reversing levers 11.1 to 11.16, more particularly with the first arms 19.1 to 19.16 of the second reversing levers 11.1 to 11.16.

The blocking device 40 includes a number of blocking elements 41.1 to 41.16. In the illustrated embodiment, the blocking elements 41.1 to 41.16 are provided on a common blocking component 42. The

BE2016 / 0124 blocking elements 41.1 to 41.16 are movable together between a weaving place shown in figure 5 and a blocking place shown in figure 4.

In the blocking location shown in Figure 4, each blocking element 41.1 to 41.16 is disposed behind one second reversing lever 11.1 to 11.16 and prevents further rotation of said second reversing lever 11.1 to

11.16 in at least one direction, and thus further turning the first reversing levers 6.1 to 6.16 beyond their adjustment positions shown in Figure 3 towards their lower positions. In the illustrated embodiment, the blocking elements 41.1 to 41.16 disposed in the blocking locations shown in Figure 4 prevent further clockwise rotation of the second reversing levers 11.1 to 11.16. In the weaving site, the blocking elements 41.1 to 41.16 are disposed displaced from the shed-forming mechanism 29, and do not interfere with the movement of any movable part of the shed-forming mechanism 29.

The blocking locations of the first blocking elements

41.1 to 41.16 are not identical. In a plane perpendicular to the common reversing shaft 7 of the first reversing levers 6 (see figure 1) and thus perpendicular to the common reversing shaft 12 of the second reversing levers 11.1 to 11.16, the blocking locations of the first blocking elements differ

41.1 to 41.16 at least in part to block movement of the second reversing levers 11.1 to 11.16 as shown in Figure 4, the first arms 19.1 to 19.16 and / or the second arms 20.1 to 20.16 of the second reversing levers

BE2016 / 0124

11.1 to 11.16 are not leveled.

In the embodiment shown in Figures 4 and 5, the blocking component 42 is a plate, wherein a narrow face 43 of the plate is provided with a number of ribs and recesses. The front 43 provided with a number of recesses and ribs is also referred to as a tooth profile front. The front tooth profile is adapted to the design of the shed-forming mechanism 29, more particularly to the design of the first reversing levers 6.1 to 6.16 and the orientation of the shed-forming mechanism 29 when the first reversing levers 6.1 to 6.16 are in the setting positions. The ribs and recesses can be at least partially the same height or depth. In other embodiments, an irregular pattern of the front tooth profile is provided with ribs and recesses all differing in height or depth.

The plate is moved in a path of movement of the second reversing levers 11.1 to 11.16 and the narrow front is adapted to interact with the second reversing levers 11.1 to 11.16 for a clockwise movement and, thus, a movement of the connected first to prevent reversing levers 6.1 to 6.16 of the drive mechanisms 2 from their adjustment positions to their lower positions.

In one embodiment, the blocking component 42 in the form of a plate is mounted pivotally about a blocking device reversing shaft 45 between the weaving site shown in Figure 5 and the blocking site shown in Figure 4 by means of two supports 44 mounted on the frame 22. ,

BE2016 / 0124 in which the reversing device block 45 is parallel to the first reversing shaft 7 and the second reversing shaft 12. In the embodiment shown in Figures 4 and 5, the blocking component 42 in the form of a plate is forced into the weaving site by means of a reset element 46, in particular a spring, which is arranged between the tooth profile front and the blocking device reversing shaft 45. The blocking component 42 is moved by means of an actuator device 47, which is also disposed between the tooth profile front and the blocking device reversing shaft 45 to move the blocking component 42 against the restoring force of the reset element 46 in the blocking location shown in Figure 4. The actuator device 47 is controlled by a control device (not shown) via a wire 48.

In a preferred use for an Instinien, all drive mechanisms 2 are driven to move the first reversing levers 6.1 to 6.16 in or closer to the upper positions. Then, the blocking device 40 is driven to move the blocking elements 41.1 to 41.16 in the blocking locations. Finally, the driving mechanisms 2 are driven to move the first reversing levers 6.1 to 6.16 to the lower positions in the setting positions, thereby blocking movement past the setting positions by means of the blocking elements 41.1 to 41.16.

Figures 6 and 7 show in perspective view a blocking device 40 with the blocking elements arranged in a weaving place and a blocking place, respectively. The blocking device 40 shown in Figures 6 and 7 is similar to

BE2016 / 0124 the blocking device 40 shown in Figures 4 and 5, and also comprises a number of blocking elements 41.1 to 41.16, which are provided on a common blocking component 42 in the form of a plate. The blocking elements 41.1 to 41.16 are movable together between a weaving site shown in Figure 6 and a blocking site shown in Figure 7. More particularly in the illustrated embodiment of Figures 6 and 7, the blocking component 42 is pivotally mounted in the form of a plate between the weaving site shown in figure 6 and the blocking place shown in figure 7 around a blocking device reversing shaft 45 which is arranged between two supports 44. In the illustrated embodiment, the actuator device 47 and the reset element 46 are both disposed on the side of the plate provided with the tooth profile front relative to the locking device reversing shaft 45. Alternatively, in one embodiment, the locking component 42 is in the form of a plate forced into the weaving site by means of a reset element and moved by means of the actuator device against the reset force of the reset element in the blocking location shown in figure 7. According to an embodiment not shown, the actuator device and the reset element engage with the blocking component 42 on opposite sides reversing shaft relative to the locking device 45.

Figure 8 shows the blocking device 40 of Figures 6 and 7 together with second reversing levers 11.1 to 11.16 in a side view. As described above, for adjustment, all drive mechanisms 2 are preferably driven about the first reversing levers 6 in or close to the upper positions

BE2016 / 0124. Thereafter, the blocking device 40 is driven to move the blocking elements 41 into the blocking locations as shown in Figures 7 and 8. Ultimately, the driving mechanisms 2 are driven to move the first reversing levers 6 to the lower positions in the setting positions, the second reversing levers 11 striking the blocking elements of the blocking component and a movement past the setting positions by means of the blocking elements 41 is blocked. In the absence of the blocking device 40, due to gravity, the second reversing levers 11 can rotate clockwise into their lower positions. As shown in Figure 8, in the embodiment shown in Figures 6 to 8, the blocking device 40 forms an over-center mechanism together with the shed-forming mechanism 29, so that forces applied by the reset element 46 are indicated by an arrow 51 for pivoting the blocking component 42 counterclockwise and thus moving the blocking elements 41 out of the blocking site toward the weaving site are counteracted or exceeded by the forces indicated by an arrow 52 acting on the blocking elements 41 in contact with the shed-forming mechanism 29 due to gravities acting on the shed-forming mechanism 29. This allows the actuator device 47 to be deactivated after the first reversing levers 6 of the shed forming mechanism 29 have been moved into the adjustment positions. At the start of a weaving process, the shed-forming mechanism 29 is first driven to bring all of the first reversing levers 6 to their upper positions. After the movement of the shed-forming mechanism 29, the blocking component 42 becomes by means of the restoring force of the restoring element 46

BE2016 / 0124 moved into the weaving place. In preferred embodiments, at least one sensor device 53, 54 is provided to detect the presence or absence of the blocking elements in the weaving site. In this case, a normal weaving process can be prevented until all blocking elements are in the weaving site. For example, the sensor device 53 is provided at the actuator device 47 to detect the presence in the blocking site, and the sensor device 54 is provided at the actuator device 47 to detect the presence in the weaving site.

Figures 9 and 10 show a second embodiment of a blocking device 40 with blocking elements 41.1 to

41.16 (only partially visible), the blocking elements 41.1 to 41.16 being adapted to be arranged in a blocking site and a weaving site, respectively.

The blocking elements 41.1 to 41.16 of the blocking device 40 shown in Figures 9 and 10 are also provided with a common blocking component 42 in the form of a plate. In contrast to the previous embodiment, the blocking component 42 is not movable, more particularly not pivotable, mounted on a frame 22 of the weaving machine. The blocking component 42 is removably mounted on the frame 22, with at least two mounting positions provided for mounting the blocking elements 41.1 to 41.16 in the blocking site and in the weaving site.

BE2016 / 0124 When the locking component 42 is mounted in the first mounting position as shown in figure 9, the locking elements 41.1 to 41.16 are arranged in their locking locations and block a clockwise pivoting movement of the second reversing levers 11.1 to 11.16. In the illustrated embodiment, a sensor device 49 is provided for detecting the presence or absence of the blocking component 42.

When the locking component 42 is mounted in the second mounting position as shown in Figure 10, the locking elements 41.1 to 41.16 are disposed in their weaving locations and prevent pivotal movement of the second reversing levers 11.1 to 11.16 and / or movement of any other movable component of the shed-forming mechanism 29.

As described, the blocking device 40 is adapted to hold the shed forming mechanism 29 in an adjustment position, wherein in the adjustment position at least one weaving frame 1 is not leveled with the remaining weaving frames

1. In one embodiment, the shed forming unit further includes a leveling rod, wherein all second arms 9.1 to 9.16 of the first reversing levers 6.1 to 6.16 are leveled by means of a leveling rod mounted on a frame 22 which includes, for example, the transmission rods 13.1. until 13.16. Due to the different designs of the first reversing levers

6.1 to 6.16, the first arms 8.1 to 8.2 are not aligned in one row when the second arms 9.1 to 9.2 are leveled.

BE2016 / 0124 [0065] Figures 11 and 12 show a leveling device 60 provided with a movably mounted leveling device blocking element 62 for leveling all weaving frames 1 of a shed-forming mechanism 29 as shown in figure 1, the leveling device blocking element 62 in a leveling device weaving site and leveling device blocking place is fitted. The leveling device blocking element 62 is a movable, more particularly rotatable or pivotally mounted plate.

In the illustrated embodiment, the leveling device 60 is also mounted opposite the drive system 30 (see Figure 2) on the weaving machine, the leveling device 60 being arranged to cooperate with the second arms 20.1 to 20.16 of the second reversing levers

11.1 to 11.16. The leveling device blocking element 62 in the form of a plate is pivotally arranged around a reversing axis 65. The leveling device 60 further includes an actuator device 67 and a spring 66, the leveling device blocking element 62 being pivotable by means of the actuator device 67 against the force of the spring 66 about the reversing shaft 65 in the leveling device blocking location shown in Figure 12. Also, a sensor device 63 are provided to check whether the leveling places have been reached.

It is clear to a person skilled in the art that the invention is not limited to the described embodiments and that different variants are conceivable, in particular with regard to the number of weaving frames and associated drive mechanisms and blocking elements.

BE2016 / 0124

Claims (17)

Conclusions A shed-forming mechanism (29) of a weaving machine, the shed-forming mechanism (29) comprising a number of weaving frames (1) and a number of driving mechanisms (2), each driving mechanism (2) being assigned to one weaving frame (1) and at least one coupling rod (5) and a first reversing lever (6) having a first arm (8) and a second arm (9), the coupling rod (5) being adaptably connected in location to the first arm (8) of the first reversing lever ( 6) by means of a mounting element (18) and wherein the weaving frame (1) to which the drive mechanism (2) is assigned is coupled to the second arm (9) of the first reversing lever (6), all the first reversing levers (6) are pivotable about a common reversing shaft (7) between an upper position and a lower position, each first reversing lever (6) being pivotable in an adjustment position about the location of the assigned coupling rod (5) relative to the first arm ( 8) from n the first reversing lever (6), characterized in that the blocking device comprises a number of blocking elements (41), each blocking element (41) being assigned to one drive mechanism (2), each blocking element (41) being movable between a weaving site and a blocking location, each blocking element (41) interacting in its blocking location with the assigned driving mechanism (2) to prevent movement of the first reversing lever (6) of said driving mechanism (2) beyond the setting position to the bottom position, and in a plane perpendicular to the BE2016 / 0124 common reversing shaft (7) the blocking place of at least one first biocoupling element of the number of blocking elements (41) differs from the blocking place of at least one second biocoupling element of the number of blocking elements (41). Locking device according to claim 1, characterized in that each drive mechanism (2) further comprises a second reversing lever (11) connected to the first reversing lever (6) by means of a transmission rod (13), the locking elements (41) being adapted to be combined work with the second reversing levers (11), in particular with the first arms (19) of the second reversing levers (11) to which the transmission rods (13) are connected, in order to move the first reversing levers (6) past the setting positions to the lower positions. Blocking device according to claim 1 or 2, characterized in that the blocking elements (41.1 to 41.16) are provided on a common blocking component (42), which blocking component (42) is movable. to bring all blocking elements (41.1 to 41.16) together in their biocutting places. Blocking device according to claim 3, characterized in that the blocking component (42) has at least one rib and / or at least one recess to form the at least one first bi-turning element and the at least one second bi-turning element, in a plane perpendicular to the common reversing axis ( 7) the blocking place of at least one first BE2016 / 0124 blocking element differs from the blocking location of the at least one second blocking element. Blocking device according to claim 4, characterized in that the blocking component (42) is a plate, wherein a narrow front (43) of the plate is provided with at least one rib and / or at least one recess and the narrow front (43) is adapted to cooperate with the drive mechanism (2) to prevent movement of the first reversing levers (6) of the drive mechanisms (2) beyond their setting positions to their lower positions. Blocking device according to claim 5, characterized in that the plate has a tooth profile front (43). Blocking device according to any one of claims 3 to 6, characterized in that the blocking component (42) is movable by means of an actuator device (47) to bring all the blocking elements (41) together in and / or out of their blocking positions, wherein the in particular the blocking component (42) is movable by means of the actuator device (47) against the force of a reset element (46) to bring all the blocking elements (41.1 to 41.16) together in their blocking positions. Blocking device according to any one of claims 3 to 7, characterized in that the blocking component (42) is pivotable about a blocking component reversing shaft (45) to bring all the blocking elements (41) together into their blocking positions. BE2016 / 0124 Blocking device according to any one of claims 1 to 8, characterized in that a sensor device (49, 53, 54) is provided for detecting the presence or absence of blocking elements in the weaving site and / or in the blocking site, wherein the driving of the drive mechanisms (2) is prevented until all blocking elements (41) are in their weaving locations. A weaving machine for a weaving machine with a blocking device according to any one of claims 1 to 9 and a shed-forming mechanism comprising a number of weaving frames (1) and a number of driving mechanisms (2), each driving mechanism (2) being assigned to one weaving frame (1) and includes at least one coupling rod (5) and a first reversing lever (6) with a first arm (8) and a second arm (9), the coupling rod (5) being adaptably connected in location to the first arm (8) of the first reversing lever (6) by means of a mounting element (18) and in which the weaving frame (1) to which the drive mechanism (2) is assigned is coupled to the second arm (9) of the first reversing lever (6), all first reversing levers ( 6) are pivotable around a common reversing shaft (7) between an upper position and a lower position, each first reversing lever (6) being movable in an adjustment position to match the location of the associated coupling rod (5) view of the first arm (8) of the first reversing lever (6), characterized in that the blocking device (40) includes a number of blocking elements (41), each blocking element (41) being assigned to one drive mechanism (2), each blocking element (41) is movable between a weaving site and BE2016 / 0124 a blocking location, the blocking element (41) in the blocking location interacting with the assigned drive mechanism (2) to prevent movement of the first reversing lever (6) of said driving mechanism (2) past the setting position to the bottom position , in a plane perpendicular to the common reversing axis (7), the blocking location of at least one first blocking element of the number of blocking elements (41) differs from the blocking location of at least one second blocking element of the number of blocking elements (41), the first blocking element and the second locking element are assigned to two actuators (2) of the plurality of actuators with first reversing levers (6) differing at an angle between the first arm (8) and the second arm (9). Shed-forming unit according to claim 10, characterized in that the first reversing levers (6) are movable from a position closer to the top position than the setting position towards the bottom position after the blocking elements (41) are moved into their blocking positions. Shed-forming unit according to claim 10 or 11, characterized in that the blocking elements (41) cooperate with the first reversing levers (6) to prevent movement of the first reversing levers (6) beyond the setting positions to the lower positions. Shed-forming unit according to claim 10 or 11, therefore BE2016 / 0124 characterized in that each drive mechanism (2) further comprises a second reversing lever (11) connected to the first reversing lever (6) by means of a transmission rod (13), the locking elements (41) cooperating with the second reversing levers (11) prevent movement of the first reversing levers (6) past the adjustment positions towards the lower positions. Shed-forming unit according to any one of claims 10 to 13, characterized in that when all the first reversing levers (6) are arranged in the setting positions, the first arms (8) of all the first reversing levers (6) are aligned at least substantially in a direction parallel to the common reversing shaft (7). Shed-forming unit according to any one of claims 10 to 13, characterized in that when all the first reversing levers (6) are arranged in the setting positions, the first arms (8) of the first reversing levers (6) are at least partially of a virtual access surface opposite the mounting elements ( 18) moved, wherein in an access direction (33) each first reversing lever (6) is further away or at the same distance from the virtual access plane than each successive first reversing lever (6). Shed-forming unit according to any one of claims 10 to 15, characterized in that the drive mechanisms (2) are assigned to at least two different drive motors (31) arranged in position relative to the common reverse shaft (7). BE2016 / 0124 Weaving machine, characterized in that the weaving machine comprises a shed-forming unit according to any one of claims 10 to 16. BE2016 / 0124 BE2016 / 0124 2.5 CO <N BE2016 / 0124