Gauze heald frame structure for a new type of loom

Abstract

The utility model discloses a novel gauze heald frame structure of weaving machine, including the symmetrical arrangement of upper gauze mechanism and lower gauze mechanism, with each other cooperation realizes spinning operation, and the connecting frame of bolt connection in the both ends of upper gauze mechanism and lower gauze mechanism, with upper gauze mechanism and lower gauze mechanism are installed fixed and realize integral stable movement operation, and the connecting frame adopts high -strength aluminum alloy material, and its inboard is provided with the positioning clamping groove that is connected with upper gauze mechanism, lower gauze mechanism, ensures that upper and lower mechanism is accurate alignment when assembling, and the bolt connection mode can realize quick assembly and disassembly, and is convenient for later maintenance and component replacement. The utility model realizes the synchronous movement of upper and lower gauze mechanism, improves weaving precision and equipment reliability.

Description

Technical Field

[0001] This utility model relates to the field of shuttle loom application technology, and in particular to a novel leno heald frame structure for shuttle looms. Background Technology

[0002] During the weaving process of a shuttle loom, the tufted heddles need to drive the warp yarns to move up and down according to a preset pattern to form a shed, so that the weft yarns can shuttle and interweave, ultimately forming the fabric.

[0003] Traditional tulle heald frame structures often employ a single drive or asymmetrical layout, which leads to problems such as asynchronous movement, large vibration, and easy wear, resulting in defects such as uneven yarn tension and high yarn breakage rate.

[0004] In addition, the existing structure is complicated to install and debug, and has high maintenance costs, making it difficult to meet the needs of high-speed and high-precision modern weaving. Therefore, this utility model proposes a new type of leno heald frame structure for shuttle looms. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a new type of heddle frame structure for a shuttle loom, so as to overcome the problems of unstable movement, complex installation and difficult maintenance in the prior art, realize the synchronous movement of the upper and lower heddle mechanisms, and improve weaving accuracy and equipment reliability.

[0006] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a new type of gypsum heald frame structure for a shuttle loom, including an upper gypsum mechanism and a lower gypsum mechanism arranged symmetrically to cooperate with each other to realize the spinning operation; The connecting brackets are bolted to both ends of the upper and lower tulle mechanisms to install and fix them and achieve stable overall movement. The connecting brackets are made of high-strength aluminum alloy and have positioning slots on their inner sides for connecting with the upper and lower tulle mechanisms, ensuring precise alignment of the upper and lower mechanisms during assembly. At the same time, the bolt connection method allows for quick disassembly and assembly, facilitating later maintenance and component replacement.

[0007] The present invention is further configured such that: the upper gauze mechanism includes an upper crossbeam, the upper crossbeam has multiple mounting slots evenly provided near the bottom position, the bottom of the upper crossbeam is bolted to an upper heddle rod by multiple bolts connected to an upper mounting block, and the top of the upper crossbeam is connected to multiple upper drive units.

[0008] Through the above technical solution, the upper crossbeam adopts a hollow rectangular cross-section structure, which reduces the overall weight and the load on the drive unit while ensuring structural strength. The mounting slots are evenly distributed along the length of the upper crossbeam, and the spacing is designed according to the commonly used warp density. The upper mounting block can be fixed in the corresponding mounting slot according to the actual weaving needs, realizing flexible adjustment of the installation position of the upper heddle rod, and adapting to the production of fabrics with different widths and warp densities. In addition, the bolted upper mounting block can avoid the problem of fixing the position of the heddle rod caused by the traditional welding method. When it is necessary to replace the upper heddle rod, only the bolts of the upper mounting block need to be removed, which is convenient.

[0009] The present invention is further configured such that: both ends of the upper connecting rod are fixedly connected to upper connecting blocks, and are respectively bolted to the connecting frames on both sides by the upper connecting blocks.

[0010] Through the above technical solution, the upper connecting block and the upper heddle rod are integrally molded to ensure connection strength. At the same time, the bolt connection between the upper connecting block and the connecting frame can further fix the two ends of the upper heddle rod, preventing the upper heddle rod from shifting laterally during movement. In addition, the two side connecting frames form a double fixing structure of "two-end support and middle crossbeam positioning" through the upper connecting block and the upper heddle rod, which greatly improves the overall stability of the upper gauze mechanism and reduces vibration and deformation during high-speed movement.

[0011] The present invention is further configured such that: the upper drive unit includes a cam connected to the main shaft of the loom via an external transmission mechanism, the cam is connected to an upper connecting rod, and the upper connecting rod is bolted to the top of the upper crossbeam.

[0012] Through the above technical solution, the profile curve of the cam is designed according to the warp yarn motion law, which can realize the precise reciprocating motion of the upper beam and ensure that the warp yarn forms the shed according to the preset trajectory; the external transmission mechanism is connected to the main shaft of the loom, so that the rotation speed of the cam is synchronized with the weaving speed of the loom, avoiding the disorder of the shed caused by inconsistent drive speed; the bolt connection between the upper connecting rod and the upper beam makes it easy to replace the upper connecting rod with different lengths or transmission ratios according to the weaving requirements of different fabrics, flexibly adjust the motion stroke of the upper yarn mechanism, and also facilitate the inspection and maintenance of the upper drive unit.

[0013] The present invention is further configured such that: the lower gauze mechanism includes a lower crossbeam, the top of the lower crossbeam is bolted to a lower mounting block connected by multiple bolts and a lower heddle rod is bolted to the lower crossbeam, the bottom of the lower crossbeam is bolted to multiple lower drive units, and the bottom of the lower crossbeam is symmetrically bolted to bearing mounting seats near the corners.

[0014] Through the above technical solution, the lower crossbeam and the upper crossbeam are structurally symmetrical and both adopt a hollow rectangular cross-section design to ensure the weight balance of the upper and lower tulle mechanisms and reduce eccentric vibration during the operation of the loom. The bolt connection method between the lower mounting block and the lower crossbeam is consistent with the design logic of the upper mounting block, which can realize flexible adjustment of the installation position of the lower heddle rod and facilitate the replacement of the lower heddle rod. In addition, the lower drive unit is set at the bottom of the lower crossbeam, forming a symmetrical layout with the upper drive unit, ensuring the force balance of the upper and lower tulle mechanisms during movement and improving the overall motion synchronization.

[0015] The present invention is further configured such that: both ends of the lower connecting rod are respectively fixedly connected to lower connecting blocks, and are respectively bolted to the connecting frames on both sides.

[0016] Through the above technical solution, the lower connecting block and the lower heddle rod are integrally formed and bolted to the connecting frame to fix both ends of the lower heddle rod. Together with the upper connecting block, the upper and lower heddle rods are rigidly connected through the connecting frame, ensuring that the upper and lower gypsum mechanisms always maintain precise alignment during movement and avoiding warp yarn interlacing disorder caused by misalignment. At the same time, the design of the lower connecting block also provides additional support points for the lower heddle rod, reducing bending deformation of the lower heddle rod during high-speed movement.

[0017] The present invention is further configured such that: the lower drive unit includes a drive shaft connected to an external main shaft, the outer wall of the drive shaft is fitted with a lower connecting rod, and the lower connecting rod is bolted to the bottom of the lower crossbeam.

[0018] Through the above technical solution, the drive shaft is connected to the external main shaft of the loom via a coupling, ensuring that the rotation speed of the drive shaft is synchronized with the cam of the upper drive unit, thereby achieving synchronized movement between the lower and upper tulle mechanisms. The lower connecting rod is sleeved on the outer wall of the drive shaft and can reciprocate with the rotation of the drive shaft, thereby driving the lower crossbeam to move up and down. Its transmission structure is simple and highly reliable. Furthermore, the bolt connection between the lower connecting rod and the lower crossbeam facilitates adjustment of the installation angle of the lower connecting rod or replacement with lower connecting rods of different specifications to adapt to different weaving needs. In addition, the symmetrical layout of the lower and upper drive units allows the forces on the upper and lower tulle mechanisms to be balanced, reducing vibration and impact on the loom body and extending the service life of the equipment.

[0019] The beneficial effects of this utility model are as follows: 1. The novel heddle frame structure for a shuttle loom proposed in this utility model utilizes symmetrically arranged upper and lower heddle mechanisms, with their two ends firmly connected by a rigid connecting frame, forming a closed force flow frame structure. This design greatly improves the overall rigidity and stability, effectively suppresses vibration and noise generated by high-speed reciprocating motion, ensures the stability of the weave position, and thus significantly improves fabric quality; 2. The novel heald frame structure of this utility model for a shuttle loom ensures the synchronization of the power source by having both upper and lower drive units directly or indirectly linked to the same main shaft. Combined with a precisely designed cam and linkage mechanism, it can accurately control the movement sequence and stroke of the upper and lower crossbeams, forming a clear shed that is conducive to weft insertion, adapting to high-speed weaving, and reducing the warp breakage rate. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the heddle frame structure of a novel shuttle loom according to this utility model.

[0021] In the diagram: 1. Upper tulle mechanism; 11. Upper crossbeam; 12. Mounting groove; 13. Upper mounting block; 14. Upper heddle rod; 141. Upper connecting block; 15. Cam; 16. Upper connecting rod; 2. Lower tulle mechanism; 21. Lower crossbeam; 22. Lower mounting block; 23. Lower heddle rod; 231. Lower connecting block; 24. Drive shaft; 25. Lower connecting rod; 26. Bearing mounting seat; 3. Connecting frame. Detailed Implementation

[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0023] like Figure 1 As shown, a new type of gypsum heald frame structure for a shuttle loom includes an upper gypsum mechanism 1 and a lower gypsum mechanism 2 arranged symmetrically to cooperate with each other to achieve spinning operation; The upper gypsum mechanism 1 includes an upper crossbeam 11, which adopts a hollow rectangular cross-section structure to reduce overall weight and reduce the load on the drive unit while ensuring structural strength. Multiple mounting slots 12 are evenly distributed near the bottom of the upper crossbeam 11, with the spacing designed according to common warp density. Upper mounting blocks 13 can be fixed to corresponding mounting slots 12 according to actual weaving needs, allowing flexible adjustment of the installation position of the upper heddle rod 14 to accommodate fabrics of different widths and warp densities. The upper mounting blocks 13 at the bottom of the upper crossbeam 11 are bolted to the upper heddle rod 14 via multiple bolts. Upper connecting blocks 141 are fixedly connected to both ends of the upper heddle rod 14. The upper connecting blocks 141 are connected to the upper heddle rod... The rod 14 is made in one piece to ensure connection strength. At the same time, the upper connecting block 141 is bolted to the connecting frame 3, which can further fix the two ends of the upper heddle rod 14 and prevent the upper heddle rod 14 from shifting laterally during movement. In addition, the two connecting frames 3 form a double fixing structure of "two-end support and middle crossbeam positioning" with the upper connecting block 141 and the upper heddle rod 14, which greatly improves the overall stability of the upper tulle mechanism 1 and reduces vibration and deformation during high-speed movement. The upper heddle rod 14 is bolted to the connecting frames 3 on both sides through the upper connecting block 141. The bolted upper mounting block 13 can avoid the problem of fixing the position of the heddle rod caused by the traditional welding method. When it is necessary to replace the upper heddle rod 14, it is only necessary to remove the bolts of the upper mounting block 13, which is convenient to operate. Multiple upper drive units are connected to the top of the upper crossbeam 11. Each upper drive unit includes a cam 15 connected to the main shaft of the loom via an external transmission mechanism. The cam 15 is connected to an upper connecting rod 16, which is bolted to the top of the upper crossbeam 11. The profile curve of the cam 15 is designed according to the warp yarn movement law, such as the shed opening height and movement speed curve, which can realize the precise reciprocating movement of the upper crossbeam 11 and ensure that the warp yarn forms the shed according to the preset trajectory. The external transmission mechanism is connected to the main shaft of the loom, so that the rotation speed of the cam 15 is synchronized with the weaving speed of the loom, avoiding the shed formation disorder caused by inconsistent drive speeds. The bolted connection between the upper connecting rod 16 and the upper crossbeam 11 makes it easy to replace the upper connecting rod 16 with different lengths or transmission ratios according to the weaving requirements of different fabrics, flexibly adjust the movement stroke of the upper yarn mechanism 1, and also facilitate the inspection and maintenance of the upper drive unit. The lower tulle mechanism 2 includes a lower crossbeam 21, which is symmetrical to the upper crossbeam 11 and also adopts a hollow rectangular cross-section design to ensure the weight balance of the upper and lower tulle mechanisms and reduce eccentric vibration during loom operation. The bolt connection between the lower mounting block 22 and the lower crossbeam 21 is consistent with the design logic of the upper mounting block 13, which allows for flexible adjustment of the installation position of the lower heald rod 23 and facilitates the replacement of the lower heald rod 23. The lower mounting block 22, which is connected to the top of the lower crossbeam 21 by multiple bolts, is bolted to the lower heald rod 23. The two ends of the lower heald rod 23 are respectively fixedly connected to the lower connecting blocks 231, and are respectively connected by the lower connecting blocks 231. The connecting frame 3 is bolted to both sides. The lower connecting block 231 is integrally formed with the lower heddle rod 23. The bolt connection between the lower connecting block 231 and the connecting frame 3 can fix both ends of the lower heddle rod 23. Together with the upper connecting block 141, the upper and lower heddle rods are rigidly connected through the connecting frame 3, ensuring that the upper and lower gypsum mechanisms always maintain precise alignment during movement and avoiding warp yarn interlacing disorder caused by misalignment. At the same time, the design of the lower connecting block 231 also provides an additional support point for the lower heddle rod 23, reducing the bending deformation of the lower heddle rod 23 during high-speed movement. The bottom of the lower crossbeam 21 is symmetrically bolted with bearing mounting seats 26 near the corner. Multiple lower drive units are bolted to the bottom of the lower crossbeam 21. These lower drive units are located at the bottom of the lower crossbeam 21, forming a symmetrical layout with the upper drive units. This ensures force balance during the movement of the upper and lower tulle mechanisms and improves overall motion synchronization. Each lower drive unit includes a drive shaft 24 connected to an external main shaft. A lower connecting rod 25 is sleeved on the outer wall of the drive shaft 24 and bolted to the bottom of the lower crossbeam 21. The drive shaft 24 is connected to the external main shaft of the loom via a coupling, ensuring that the rotational speed of the drive shaft 24 is synchronized with the cam 15 of the upper drive unit, thereby realizing the movement of the lower tulle mechanism 2... The lower connecting rod 25 is sleeved on the outer wall of the drive shaft 24 and can reciprocate with the rotation of the drive shaft 24, thereby driving the lower crossbeam 21 to move up and down. Its transmission structure is simple and highly reliable. The bolt connection between the lower connecting rod 25 and the lower crossbeam 21 makes it easy to adjust the installation angle of the lower connecting rod 25 or replace it with a lower connecting rod 25 of different specifications to adapt to different weaving needs. In addition, the symmetrical layout of the lower drive unit and the upper drive unit can balance the forces on the upper and lower gypsum mechanisms, reduce the vibration and impact on the loom body, and extend the service life of the equipment. The connecting bracket 3 is bolted to both ends of the upper gauze mechanism 1 and the lower gauze mechanism 2 to install and fix the upper gauze mechanism 1 and the lower gauze mechanism 2 and achieve stable overall movement. The connecting bracket 3 is made of high-strength aluminum alloy and has a positioning slot on its inner side for connecting with the upper gauze mechanism 1 and the lower gauze mechanism 2 to ensure that the upper and lower mechanisms are accurately aligned during assembly. At the same time, the bolt connection method can achieve quick disassembly and assembly, which is convenient for later maintenance and component replacement.

[0024] In use, the main shaft of the loom rotates, simultaneously driving the cam 15 of the upper drive unit and the drive shaft 24 of the lower drive unit to rotate. The cam 15 pushes the upper crossbeam 11 upward through the upper connecting rod 16, while the drive shaft 24 pulls the lower crossbeam 21 downward through the lower connecting rod 25. At this time, the upper and lower tulle mechanisms move in opposite directions, forming the shed. As the main shaft continues to rotate, under the combined action of the cam 15 profile and the connecting rod mechanism, the upper crossbeam 11 moves downward, and the lower crossbeam 21 moves upward, with the upper and lower tulle mechanisms moving in opposite directions, completing one shedding cycle. The entire process is smooth and synchronized, creating excellent conditions for weft insertion.

[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A novel heddle frame structure for a shuttle loom, characterized in that: It includes an upper yarn mechanism (1) and a lower yarn mechanism (2) arranged symmetrically to cooperate with each other to realize the spinning operation; The connecting bracket (3) is bolted to both ends of the upper gauze mechanism (1) and the lower gauze mechanism (2) to install and fix the upper gauze mechanism (1) and the lower gauze mechanism (2) and achieve overall stable movement operation.

2. The heddle frame structure of a novel shuttle loom according to claim 1, characterized in that: The upper gauze mechanism (1) includes an upper crossbeam (11), which has multiple mounting slots (12) evenly distributed near the bottom. The bottom of the upper crossbeam (11) is bolted to an upper mounting block (13) connected by multiple bolts, and the top of the upper crossbeam (11) is connected to multiple upper drive units.

3. The heddle frame structure of a novel shuttle loom according to claim 2, characterized in that: Both ends of the upper connecting rod (14) are fixedly connected to the upper connecting block (141), and are respectively bolted to the connecting frame (3) on both sides through the upper connecting block (141).

4. The heddle frame structure of a novel shuttle loom according to claim 2, characterized in that: The upper drive unit includes a cam (15) connected to the main shaft of the loom via an external transmission mechanism. The cam (15) is connected to an upper connecting rod (16), and the upper connecting rod (16) is bolted to the top of the upper crossbeam (11).

5. The heddle frame structure of a novel shuttle loom according to claim 1, characterized in that: The lower gauze mechanism (2) includes a lower crossbeam (21). The top of the lower crossbeam (21) is bolted to a lower mounting block (22) connected by multiple bolts, and a lower heddle rod (23) is bolted to the bottom of the lower crossbeam (21). Multiple lower drive units are bolted to the bottom of the lower crossbeam (21) near the corners, and bearing mounting seats (26) are symmetrically bolted to the bottom of the lower crossbeam (21).

6. The heddle frame structure of a novel shuttle loom according to claim 5, characterized in that: The lower connecting rod (23) is fixedly connected to the lower connecting block (231) at both ends, and is bolted to the connecting frame (3) on both sides through the lower connecting block (231).

7. The heddle frame structure of a novel shuttle loom according to claim 5, characterized in that: The lower drive unit includes a drive shaft (24) connected to an external main shaft. A lower connecting rod (25) is sleeved on the outer wall of the drive shaft (24), and the lower connecting rod (25) is bolted to the bottom of the lower crossbeam (21).

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