EP4540446A1

EP4540446A1 - A novel jacquard machine

Info

Publication number: EP4540446A1
Application number: EP23932302.5A
Authority: EP
Inventors: Musa KALKAN
Original assignee: Musa Kalkan Tekstil Sanayi Ve Ticaret Ltd Sirketi
Current assignee: Musa Kalkan Tekstil Sanayi Ve Ticaret Ltd Sirketi
Priority date: 2023-04-12
Filing date: 2023-12-29
Publication date: 2025-04-23
Also published as: EP4540446A4

Abstract

The present invention relates to a novel jacquard machine with increased efficiency and optimization, which differs from the state of the art by means of a cam mechanism.

Description

A NOVEL JACQUARD MACHINE

Field of the Invention

Background of the Invention

Jacquard fabric is a covering surface formed by combining yams with various methods and is obtained from materials such as cotton, wool, silk and linen. The fabric is created by passing yams of different colors, which are perpendicular and parallel to each other, under and over each other.

The greater the number of yams used in the jacquard machines, the more detailed will be the pattern that will be created in weaving. The number of yams that can be used in the jacquard machines that are used today does not allow creation of very detailed shapes on the woven fabric.

In the weaving looms that are currently used, the jacquard machines are mounted on a scaffold with a height of 6 to 7 meters. Therefore, a large footprint is required for the use of the weaving loom.

The harness cord reaches from the jacquard machine to the loom upon being distributed from one point. This causes the yams to reach the loom at an angle. It also requires the yams to be broken at two points. Wear (abrasion) occurs at these breaking points over time. In order to reduce these abrasions and make the yams last longer, the scaffolds are made high, and the breaking angle is enlarged to reduce abrasion. For this method, it is necessary to choose work areas with high ceilings. This in turn requires a laborious system in terms of use and installation.

There are many components in the jacquard machines that are used today. These components need to be lubricated daily, weekly and monthly in certain periods. This need brings along extra labor costs. In addition, the lubricant used in these machines can also contaminate the fabrics during weaving and cause oily and dirty products. In the patent and literature search conducted for the known state of the art, the patent application numbered TR 2018/00749 was identified. The said application discloses a jacquard machine mountable on looms, which can be mounted on the weaving machine instead of a scaffold, and wherein a higher-than-normal space is not required for the use of the machine, periodic maintenance is carried out at longer intervals, and approximately 20000 or more warp cords can all work independently of each other.

As a result, due to the above-mentioned disadvantages and the inadequacy of the existing solutions, it has become necessary to make a development in the related technical field.

Brief Description of the Invention

The present invention relates to a novel jacquard machine which meets the above-mentioned requirements, eliminates all disadvantages and introduces some additional advantages.

The invention is inspired by the existing state of the art and aims to solve the above-mentioned disadvantages.

The main objective of the invention is to obtain a novel jacquard machine with increased efficiency and optimization, which differs from the state of the art by means of a cam mechanism.

In the present invention, the height of the machine is shortened with the parts changed in and added to the machine. Additionally, the number of half-moon grooved shafts is increased. Thus, it has become possible to add more rollers.

The structural and characteristic features and all advantages of the invention will be more clearly understood by the accompanying figures and the detailed description written by referring to these figures, and therefore the invention should be evaluated taking into consideration the said figures and the detailed description.

Figures to Help Understand the Invention

Figure 1 shows the general view of the jacquard machine. Figure 2 shows the general view of the magnet assembly.

Figure 3 shows the general view of the cam assembly.

Figure 4 shows the general view of a roller spacer.

Figure 5 shows the inner view of the machine.

Figure 6 shows how the half-moon surface shape is used on the shaft and on the roller.

Description of the Reference Numbers of the Parts

1. Housing

2. Housing frame

3. Connecting shaft

4. Small toothed pulley

4a. Fewer teeth pulley

4b. More teeth pulley

5. Timing belt

6. Large toothed pulley

7. Connecting rod

8. Cam shaft

9. Bearing

10. Magnet body

11. Pawl

12. Pawl spring

13. Magnet

14. Dwell point

15. Pawl slot

16. Roller

16a. Small roller

16b. Large roller

17. Half-moon grooved shaft

18. Pawl motion transmitter 19. Roller spacers

20. Module card

21. Magnet positioner

22. Bushing

23. Bushing shaft

24. Tapered clamping lock

25. Clamp

26. Bearing housing

26a. Open bearing housing

26b. Closed bearing housing

27. Motion transmission arm

28. Reader roller drive shaft

29. Reader roller pin

30. Reader roller

31. Conjugate cam

32. Adjustment flange

33. Centering pin

34. Cam box

35. Heddle

36. Heddle eye

37. Shed

38. Heddle cord

39. Hamess board

Detailed Description of the Invention

In this detailed description, preferred embodiments of the invention are described only for the purpose of facilitating a better understanding of the subject matter.

The present invention relates to a jacquard machine. In the jacquard machine of the present invention, there is provided a housing (1) in the form of a main body, which holds thereon the components and elements that make up the jacquard machine. A housing frame (2) is configured to surround the said housing (1) in order to ensure that it stands as a whole. The housing frame (2) covers the machine parts protruding from the housing (1) and serves to increase the strength of the housing (1). In order to ensure the connection of multiple housings (1) in the jacquard machine, there is provided a connecting shaft (3) between the housings (1). This ensures rigidity and calibration.

A plurality of small toothed pulleys (4) are provided on the housing (1). The said small toothed pulleys (4) arranged in rows enable the movement of the timing belts (5) in the jacquard machine. The timing belt (5) enables motion transmission by being attached to the small toothed pulleys (4) and the large toothed pulley (6). Thus, the weaving process is performed. There are provided two small toothed pulleys (4) on each bushing shaft (23), namely a fewer teeth pulley (4a) and a more teeth pulley (4b). As a consequence of having a different number of teeth from each other they form the shed (37) angle. The bushing shaft (23) enables transmission of the rotational movement by means of the small toothed pulleys (4) mounted on one end on one side of the housing (1) on which the small toothed pulleys (4) are located.

The present invention includes a motion transmission arm (27) that is connected to the large toothed pulley (6). In this sense, the large toothed pulley (6) is mounted to the small toothed pulley (4) by means of a timing belt (5) and to the motion transmission arm (27) on another side. It transmits the motion received from the motion transmission arm (27) to the small toothed pulley by means of the timing belts (5). The large toothed pulley (6) provides high mobility even with small drives provided by the motion transmission arm (27) due to the high number of teeth it comprises compared to the other gears.

The terms small toothed pulley (4), fewer teeth pulley (4a), more teeth pulley (4b) and large toothed pulley (6) stated in the full specification do not have a relativity meaning and are only used to compare the pulleys among themselves.

A connecting rod (7) is provided in the configuration of the jacquard machine of the present invention. The said connecting rod (7) is directly connected to the motion transmission arm (27) and it is the machine element which drives the motion transmission arm (27) by the motion it receives from the reader roller drive shaft (28). In this sense, the motion transmission arm (27) is mounted to the large toothed pulley (6) at one end and to the connecting rod (7) at the other end and transmits the motion it receives from the connecting rod (7) to the large toothed pulley (6).

The invention includes at least one cam shaft (8). The said cam shaft (8) is a shaft with conjugate cams (31) provided thereon and its main task is to transmit the rotational movement received from the weaving machine to the jacquard machine via the conjugate cam (31), reader roller (30), reader roller drive shaft (28), motion transmission arm (27), connecting rod (7) and timing belts (5). By means of all the said parts, the motion is programmed and characterized, and this characterized motion is transmitted to the jacquard machine.

The said conjugate cam (31) is a cam assembly working in pairs with each other and it is the machine part that characterizes the motion by its surface shape. The conjugate cams (31) are created by performing motion design and analysis. In the said analysis, firstly, the oscillating motion is calculated based on the geometry of the shed (37) of the weaving machine, and accordingly, the conjugate cam drive unit is designed in a way to produce a dwell motion. In this way, the shed (37) is opened and moves to the fully open position prior to the hook movement and the hook movement begins. Then, after the weft exchange takes place, the shed (37) starts to be closed. This way, the friction on the yams is prevented and by this means the yams are prevented from breaking. In addition, by means of different cam profiles it is made possible to weave any and all types of fabrics.

In the present invention, a distance adjustment flange (32) is configured to adjust the distance between the conjugate cams (31) and to maintain rigidity. Maintaining the angle between the conjugate cams (31) and preventing any slipping is ensured by the centering pin (33).

The invention includes at least one bearing (9). The bearing (9) is a machine element that minimizes the friction, heating and abrasion of the parts that perform rotational movement during these movements, thereby ensuring that they operate without any clearance.

The invention includes at least one magnet body (10). The said magnet body (10) is the holder part of the magnet assembly carrying thereon the pawl (11), pawl spring (12), magnet (13), pawl motion transmitter (18) and module card (20). It houses all of the parts and ensures correct operation thereof. In the magnet body (10) used in the invention, unlike the state of the art, the magnets (13), which are located separately from each other and at different angles, are gathered in a single place. This way, the distance between the two half-moon grooved shafts required by the machine has been shortened and as a result, the height of the machine has been shortened. Thus, the height distance required by the machine has been further reduced, which is one of the most important advantages of the machine. In addition, the old complex appearance on the said jacquard machine has been eliminated and a more organized and aesthetic appearance has been achieved. There is provided at least one pawl (11) mounted on the magnet body (10). The said pawl (11) is a magnet assembly machine part which, by contacting a series of rollers (16) arranged in groups of larger and smaller sizes on a half-moon grooved shaft (17), restricts or allows the rotational movement of the rollers (16) according to the attraction force of the magnet (13) or the repulsion force of the pawl spring (12). The pawl (11) in the state of the art was wearing out over the years, causing malfunctions and errors in the operation of the machine. In the studies carried out within the scope of the invention, the working system of the pawl (11) has been changed. With the novel double spring operating system, it is ensured that, after the wear that will occur over time, the spring drives the pawl (11) forward by the amount of wear. Thus, the pawl (11) is ensured to continue to operate without being affected by wear, thereby achieving a system that requires less maintenance and can operate for a longer period of time. When the magnet (13) does not act as an electromagnet, the pawl spring (12) is used as a magnet assembly machine part useful to push the pawl (11) forward continuously and place it in the pawl slot (15) on the disk.

Module cards (20) which are mounted to a certain number of magnets (13) are used to operate the magnets (13) to which they are mounted. The said module card (20) activates or deactivates the magnets (13) in accordance with the data received from the main card. The movement of the pawls (11) and rollers (16) is determined by the activation and deactivation of the magnets (13). In this sense, it is possible to operate the magnet assembly and therefore to operate and direct the rollers (16) according to the pattern. The magnet (13), which operates according to the command received from the module card (20), acts as an electromagnet by creating a magnetic field, and attracts the pawl (11) to itself thereby allowing the movement of the rollers (16) or it is not activated thereby allowing the pawl spring (12) to prevent the movement. Thus, patterns are formed on the fabric.

At least one pawl slot (15) exactly matching the profile of the pawl (11) is configured on the rollers (16). The pawl slot (15) is used for the pawl (11) to lock the roller (16) and thus prevent movement thereof when the pawl (11) is pushed by the pawl spring (12) and inserted into the slot in the forward position.

The machine part that transmits to the pawl (11) the movements that the pawl (11) is to perform with the help of the pawl spring (12) is the pawl motion transmitter (18). At the same time, as a result of the wear on the pawl (11), it drives the pawl (11) forward as much as the amount of wear with the help of the pawl spring (12).

A magnet positioner (21) is configured to adjust the working position of the magnet assembly; which is comprised of the magnet body (10), pawl (11), pawl spring (12), pawl motion transmitter (18) and magnet (13); with the rollers (16). The magnet positioner (21) extends between the two housings (1) of the machine and the magnet assemblies are mounted thereon along this distance.

The invention includes a cam box (34) in which the cam assembly comprising a cam shaft (8), bearing (9), bearing housing (26), reader roller drive shaft (28), reader roller pin (29), reader roller (30), double conjugate cam (31), distance adjustment flange (32) and centering pin (33) is mounted and operates. At the same time, this box also serves as an oil reservoir. This way it prevents wear and strain on the cam assembly elements.

A heddle (35) is a kind of wire used to control the movement of the warp yams in the weaving machine. The said heddle (35) is in the form of a flat metal strip or a cylindrical metal rod. The heddle (35) comprises a heddle eye (36) with a hole in the center thereof through which the warp yams pass. In this way, a shed (37) is formed. The shed (37) is in the form of a kind of path resembling the letter V in shape or a tunnel formed by the yams through which the weft yam passes. As the warp yams in the weaving machine pass through the heddle eye (36), the heddles (35) are raised and lowered as a result of the circular movements of the roller (16) to the right and left. The triangular tunnel formed during this movement is called a shed (37). Weaving is realized by passing the weft yam through this tunnel.

The other end of the bushing shaft (23) is connected to the half-moon grooved shaft (17) by means of clamps (25) and enables the movement of this shaft. The clamp (25) is used for mounting the half-moon grooved shaft (17) and the bushing shaft (23) to each other. While providing motion transmission, it also allows easy intervention during assembly or in case of a failure since it is easy to assemble and disassemble. In the configuration in the state of the art, the single shaft passing between the two bodies was a time-consuming part due to its shape during assembly and disassembly operations. By means of the present invention, each shaft can be easily assembled and disassembled. Thus, it is enabled to be disassembled and assembled with a few bolts in a short period of time without disassembling the machine parts such as bearings (9), bearing housings (26) and rollers (16). For this reason, clamps (25) are effective machine parts incorporated in the machine. The bearing housing (26) is mounted on the cam box (34) and bearings (9) are mounted therein. There are two types of it, namely open bearing housing (26a) and closed bearing housing (26b). The shafts (28) passing through the bearings (9) in the closed bearing housings (26b) do not come out of the housing. The shafts passing through the bearings (9) in the open bearing housings (26a) go out of the housing and are assembled with other machine parts.

The rollers (16) used in the invention are of two types, namely small rollers (16a) and large rollers (16b). The said rollers (16) are positioned on a half-moon grooved shaft (17) and make an oscillating movement together with the half-moon grooved shaft (17). The rollers (16) are the machine parts that enable the formation of the shed (37) movement by winding or unwinding thereon the heddle cord (38) connected to the heddles (35) by making this movement. Depending on the activation and deactivation of the magnet (13) upon the command coming from the module card (20), the roller is stopped by the pawl (11) by the structure provided thereon or continues its movement. In this way, the pattern is created. The half-moon grooved shaft (17) is a machine part, which is in the form of a semicircle with a smaller diameter on a semicircle with a larger diameter, and on which there are grooves at certain distances into which the roller spacers (19) are inserted. It is connected to the bushing shaft (23) by means of clamps (25) and transfers the motion it receives therefrom to the rollers (16) due to its shape. The roller spacer (19) is a machine part in the form of two separate semicircles with mounting tabs thereon mounted in the grooves located on the half-moon grooved shaft (17). By grouping a certain number of rollers (16), it ensures that the rollers (16) operate correctly during the oscillation movement without deviating and tilting sideways. Thanks to its design allowing easy assembly and disassembly, it provides easy intervention in a short time during assembly of the machine or in case of a failure. The heddle cord (38) is wound and unwound on the rollers (16) during the oscillating movement of the rollers (16). This movement moves the heddles (35) upwards and downwards, thus forming the shed (37). The harness board (39) is used to collect the scattered heddle cords (38) and transfer them to the weaving machine in an orderly manner. The part of the roller (16) that forms a dwell point is defined as the dwell point (14).

In the studies carried out within the scope of the invention, the mechanism is designed with a stepped structure to reduce the friction during the rotational movement. In addition, with the novel outer profile of the roller (16), the yam control is further improved by completely embedding the yam. In the present invention, different diameters of rollers (16) are selected so that the large roller (16a) guides the small roller (16b). At the same time, the magnet bodies (10) are also allowed to guide the large roller (16a) by allowing the large roller (16a) to enter into the magnet assembly. Thus, the slight amount of tilting to the right and left on the shaft is prevented, allowing the said jacquard machine to operate more stably. With these improvements, a high level of control is ensured, and possible errors are prevented.

The invention includes at least one bushing (22). The bushing (22), which is mounted on both of the housings (1), is a machine part for bearing and motion transmission comprised of steel bearing housings, bearing (9) and bushing shaft (23) mounted in an aluminum housing. The bushing (22) carries out motion transmission thanks to the mounting of the bushing shaft (23) provided therein to the half-moon grooved shaft (17) with the help of the clamp (25). On the side of the housing (1) where the toothed pulleys are located, the bushing shaft (23) protrudes from both sides of the bushing (22). Thus, while toothed pulleys (4) are mounted on one end of the bushing shaft (23), the half-moon grooved shaft (17) is mounted on the other end with the help of clamps (25) and motion transmission is carried out in this way. As a result of the studies carried out within the scope of the invention, the design of the existing bearings was changed, and a bushing shaft (23) was incorporated in them and thus they were transformed into a new form.

At least one tapered clamping lock (24) is mounted between the bushing shaft (23) and the small toothed pulley (4). Thanks to its conical structure, it allows the bushing shaft (23) and the small toothed pulley (4) to be clamped and assembled very firmly. Thus, the bushing shaft (23) and the small toothed pulley (4) are securely assembled.

In the invention, at least one reader roller drive shaft (28) is configured in the cam box (34). The reader roller drive shaft (28) carries thereon reader rollers (30) which read the profiles of the conjugate cams (31) on the cam shaft (8). It transmits the motion received from the conjugate cam (31) to the motion transmission arm (27). Unlike the state of the art, the wear on a single part is distributed and reduced as a result of the transmission of the movement, which is transmitted from a single shaft by means of a double connecting rod, with the help of a double reader roller drive shaft (28) and motion transmission arm (27). Thus, the life of the machine parts is extended.

The reader roller pin (29) is used for the reader roller (30) to perform its rotational movement. The reader roller (30) performs its rotational movement on the reader roller pin (29). With its high strength structure, it is resistant to conditions such as crushing, breaking and abrasion. It is mounted to the reader roller (30) by means of the reader roller drive shaft (28). The reader roller (30) reads the profile of the conjugate cam (31) and transmits the movement to the reader roller drive shaft (28) by the reader roller pin (29) according to the profile shape. It has a high resistance against deformations such as crushing and abrasion.

Small toothed pulleys (4) transmit the movement from the other end of the bushing shaft (23), to which it is connected, to the half-moon grooved shaft (17) with the help of clamps (25). The rollers (16) on the said half-moon grooved shaft (17) continuously perform a rotational movement of approximately half a turn to the right and left. Thus, the harness cords attached to the rollers (16) are continuously wound and unwound on the roller (16). The heddles (35) attached to these cords open and close the shed (37) as a result of this movement.

A motion design is made that will enable the movement of the heddles (35) in the shed (37) up to a maximum of 14 cm, and with the data obtained, the motion transmission arm (27) and the connecting rod (7) are designed and the location of mounting thereof to the large toothed pulley (6) was determined.

This cam assembly, designed to work in pairs with each other, is the machine part that characterizes the movement in terms of profile shapes. The said part was created by performing motion design and analysis. Firstly, the oscillating motion was calculated based on the geometry of the shed (37) of the weaving machine, and accordingly, the conjugate cam (31) drive unit was designed so as to produce a dwell motion. In this way, during the weaving, the shed (37) is opened before the hook movement and moves to the fully open position and the hook movement starts. Then, after the weft exchange takes place, the shed (37) starts to be closed. This way, the friction on the yams is prevented and by this means the yams are prevented from breaking. In addition, by means of different cam profiles it is made possible to weave any and all types of fabrics. In addition, the arms that transmit the motion generated by the conjugate cam (31) are also designed in this way.

As a result of a single rotational revolution of the cam shaft (8), with the profile of the conjugate cam (31) mounted thereon, the current motion is transformed into a continuous right and left half-turn rotational movement with the help of the reader roller drive shaft (28), motion transmission rod, connecting rod (7), small toothed pulleys (4) and large toothed pulley (6). As a result, the half-moon grooved shaft (17) starts to make an oscillating movement. This movement, in turn, is transmitted to the rollers (16) on the half-moon grooved shaft (17) in the same way, allowing the rollers (16) to also perform an oscillating movement.

In the state of the art, the movement from the weaving machine is transmitted to the pulleys by the help of an eccentric shaft and a double connecting rod (7). In that case, all movement and force are transmitted through a single shaft. By means of the present invention, the rotational movement from the weaving machine is transmitted to two reader roller drive shafts (28) by means of a double conjugate cam (31). These two separate shafts share the loads and thus reduce the loads and stresses on a single part, thereby significantly increasing the service life of the parts.

In the state of the art, motion transmission was performed by means of two connecting rods (7) and an eccentric structure via a single shaft. After the studies carried out within the scope of the present invention, two reader roller (30) drive shafts are incorporated in the system and the permanent load on a single shaft is distributed on the other two shafts and thus reduced with the help of conjugate cams (31) and reader rollers (30). In this way, wear and deformation on a single machine part is reduced and the life of the machine parts is extended.

Claims

1. A jacquard machine, characterized in that it comprises:

• a plurality of housings (1) in the form of a main body, which holds thereon the components and elements that make up the jacquard machine,

• a connecting shaft (3) positioned between the housings (1),

• a timing belt (5) which enables motion transmission by being attached to the small toothed pulleys (4) and the large toothed pulley (6),

• at least one motion transmission arm (27) which is connected to the large toothed pulley (6) and is in charge of transmitting the motion,

• at least one connecting rod (7) which is directly connected to the motion transmission arm (27) and drives the motion transmission arm (27),

• a conjugate cam (31) which is a cam assembly working in pairs with each other,

• at least one cam shaft (8) including conjugate cams (31) on it, which transmits the rotational movement received from the weaving machine to the jacquard machine,

• a half-moon grooved shaft (17), which is in the form of a semicircle with a smaller diameter on a larger semicircle, and on which there are grooves,

• a roller (16) which is positioned on a half-moon grooved shaft (17) and makes an oscillating movement together with the half-moon grooved shaft (17),

• at least one magnet body (10),

• at least one pawl (11) mounted on the magnet body (10),

• a magnet (13), which acts as an electromagnet by creating a magnetic field, and attracts the pawl (11) to itself thereby allowing the movement of the rollers (16) or is not activated thereby allowing the pawl spring (12) to prevent the movement,

• at least one pawl slot (15) which is provided on the rollers (16) and exactly matches the profile of the pawl (11), and which is used for the pawl (11) to lock the roller (16) and thus prevent movement thereof when the pawl (11) is pushed by the pawl spring (12) and inserted into the slot in the forward position.

• a bushing shaft (23) which enables transmission of the rotational movement by means of the small toothed pulleys (4) mounted on one end on one side of the housing (1) on which the small toothed pulleys (4) are located,

• a clamp (25) which is used for mounting the half-moon grooved shaft (17) and the bushing shaft (23) to each other.

2. A jacquard machine according to Claim 1, characterized in that it comprises at least one bearing (9) which minimizes the friction, heating and abrasion of the parts performing rotational movement during these movements, thereby ensuring that they operate without any clearance.

3. A jacquard machine according to Claim 1, characterized in that it comprises a pawl (11) which, by contacting a series of rollers (16) arranged in groups on a half-moon grooved shaft (17), restricts or allows the rotational movement of the rollers (16) according to the attraction force of the magnet (13) or the repulsion force of the pawl spring (12).

4. A jacquard machine according to Claim 1, characterized in that it comprises a pawl spring (12) which, when the magnet (13) does not act as an electromagnet, is used to push the pawl (11) forward continuously and place it in the pawl slot (15) on the disk.

5. A jacquard machine according to Claim 1, characterized in that it comprises module cards (20) which are configured to be mounted to a certain number of magnets (13) and to operate the magnets (13) to which they are mounted.

6. A jacquard machine according to Claim 1, characterized in that it comprises a pawl motion transmitter (18) which transmits to the pawl (11) the movements that the pawl (11) is to perform with the help of the pawl spring (12).

7. A jacquard machine according to Claim 1, characterized in that it comprises roller spacers (19) which are inserted into the grooves provided on the half-moon grooved shaft (17).

8. A jacquard machine according to Claim 1, characterized in that it comprises a module card (20) which is mounted to the magnet (13) and activates or deactivates the magnets (13) in accordance with the data received from the main card.

9. A jacquard machine according to Claim 1, characterized in that it comprises reader rollers (30) which read the profiles of the conjugate cams (31).

10. A jacquard machine according to Claim 1, characterized in that it comprises a reader roller drive shaft (28) which carries thereon the reader rollers (30) which read the profiles of the conjugate cams (31) on the cam shaft (8) and transmits the motion received from the conjugate cam (31) to the motion transmission arm (27).

11. A jacquard machine according to any one of the preceding claims, characterized in that it comprises a cam box (34) in which the cam assembly comprising a cam shaft (8), bearing (9), bearing housing (26), reader roller drive shaft (28), reader roller pin (29), reader roller (30), double conjugate cam (31), distance adjustment flange (32) and centering pin (33) is mounted and operates.

12. A jacquard machine according to Claim 9 characterized in that it comprises a reader roller pin (29) which is used for the reader roller (30) to perform its rotational movement.

13. A jacquard machine according to Claim 1, characterized in that it comprises a distance adjustment flange (32) for adjusting the distance between the conjugate cams (31) and maintaining the rigidity.

14. A jacquard machine according to Claim 1, characterized in that it comprises a centering pin (33) for maintaining the angle between the conjugate cams (31) and preventing any slipping.