Common single-opening electronic multi-arm driven built-in double-opening device

By employing a collaborative design of flat levers and push-pull right-angle blades within the electronic dobby loom, the synchronous upper and lower opening movements of the heald frame are achieved, solving the problem of low weaving efficiency in existing technologies and realizing a significant improvement in double-layer weaving efficiency.

CN120989785APending Publication Date: 2025-11-21JIANGSU YOUCHENG CNC TECH CO LTD +1
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Patent Information

Application Number
CN202511272427.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-08
Publication Date
2025-11-21

AI Technical Summary

Technical Problem

When weaving double-layer fabric, existing electronic multi-arm machines cannot significantly improve weaving efficiency, mainly because the shedding of the upper and lower warp yarns is completed sequentially, resulting in a long weaving cycle.

Method used

It adopts an in-machine double-opening device driven by a common single-opening electronic multi-arm, which realizes the synchronous upper and lower opening action of the heald frame through the synergistic action of flat lever and push-pull right-angle blade. Combined with high-end controlled double nozzles and double rapiers, it completes the simultaneous weft insertion of upper and lower warp yarns.

Benefits of technology

It significantly improves the efficiency of double-layer weaving, enables synchronous weft insertion of the upper and lower warp yarns, reduces the weaving cycle, and improves production efficiency.

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Abstract

The invention relates to a common single-opening electronic multi-arm driven built-in double-opening device which is characterized in that the lower parts of a plurality of heald frames are respectively connected with an opening push-pull device through one or more vertical lifting rods, the upper ends of two vertical connecting rods of the opening push-pull device are respectively hinged with two ends of a flat lever, and the lower ends of the two vertical connecting rods are respectively hinged with the upper ends of two push-pull right-angle blades which are symmetrically arranged; the middle part of the push-pull right-angle blade rotatably penetrates through the bracket; the lower ends of the push-pull right-angle blades on the same side of the same opening push-pull device are hinged to the same push-pull link rod, and the two push-pull link rods of the same heald frame are adjacent, are connected through reversing swing arms and / or driving link rods respectively and are driven and controlled by the two output blades of the common single-opening electronic dobby respectively. The symmetrical push-and-pull right-angle blades are selectively driven to rotate by the electronic dobby with different selections, the vertical lifting rod is driven to lift and drive the heald frames through the lifting of the flat lever, and the upper and lower openings of the front and rear heald frames can be simultaneously realized through different selections of the electronic dobby, so that the double-layer weaving efficiency is greatly improved.
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Description

Technical Field

[0001] This invention relates to the field of textile technology, specifically to a common single-opening electronic multi-arm driven in-machine double-opening device. Background Technology

[0002] In existing electronic dobby looms for weaving double-layer fabrics, the upper and lower warp yarns are controlled by an electronic dobby device to alternately complete two independent shedding actions, providing clear shed channels for the upper and lower weft insertions, respectively. Its core function is to achieve separate interlacing of the upper and lower warp and weft yarns through the orderly coordination of the two shedding actions, ultimately forming a stable double-layer fabric structure, while also providing a control basis for the separation or connection of the upper and lower layers. The sequential shedding actions of the upper and lower warp yarns complete the weaving cycle for the upper and lower weft insertions, which limits the potential for significant improvements in weaving efficiency. Summary of the Invention

[0003] This invention provides a compact, conventional single-opening electronic multi-arm driven in-machine double-opening device that can significantly improve the efficiency of double-layer weaving.

[0004] The technical solution adopted in this invention is: an internal double-opening device driven by a common single-opening electronic multi-arm, comprising a frame, a common single-opening electronic multi-arm device, and multiple heald frames. A common single-opening electronic multi-arm device is arranged on one side of the frame. The device is characterized in that: each heald frame is connected to one or more vertical lifting rods, and the middle of each lifting rod is hinged to the midpoint of a horizontal lever. The horizontal lever is horizontally arranged and connected to an opening push-pull device. The opening push-pull device includes two vertical connecting rods symmetrically arranged on the left and right, and two push-pull right-angle blades symmetrically arranged on the left and right. The upper ends of the two vertical connecting rods are respectively hinged to the two ends of the horizontal lever, and the lower ends of the two vertical connecting rods are respectively hinged to the two symmetrically arranged push-pull right-angle blades. At the horizontal end of the pivot point, the push-pull right-angle blades symmetrically arranged on both sides have a pivot point at the right angle and are fitted onto the support shafts symmetrically fixed on the frame with the vertical lifting rod as the center line, and are in a hinged and rotatable state; the vertical lower ends of the push-pull right-angle blades on the left side of the vertical lifting rod of the same brown frame are all hinged to the same push-pull connecting rod, and the vertical lower ends of the push-pull right-angle blades on the right side are all hinged to another push-pull connecting rod. The two push-pull connecting rods are arranged adjacent and parallel and are each hinged to a reversing swing arm. The two reversing swing arms are respectively hinged to one end of the drive connecting rod, and the other end of the two drive connecting rods are respectively hinged to the two output blades of the ordinary single-opening electronic multi-arm and are respectively driven and controlled by them.

[0005] Furthermore, it also includes multiple sliding grooves connected to the frame or the base below the frame, with the vertical lifting rods corresponding to the multiple heald frames passing through the sliding grooves in a state of vertical and vertical constraint guidance.

[0006] Furthermore, the frame is provided with heald frame grooves corresponding to both ends of the heald frame.

[0007] Furthermore, the upper end of the vertical lifting rod is hinged to the heald frame, or the upper end of the vertical lifting rod is fixedly connected to the heald frame by a locking block.

[0008] Furthermore, the hinge points of the drive linkage and the reversing arm, and the hinge points of the push-pull linkage and the reversing arm are located at different positions.

[0009] Furthermore, one or more reversing arms and corresponding connecting rods are provided between the push-pull right-angle blade and the ordinary single-opening electronic multi-arm drive blade for transmission.

[0010] Furthermore, a right-angle blade on one side of a standard single-opening electronic multi-arm output blade replaces the reversing swing arm.

[0011] During operation, the output blades of the electronic multi-arm device are electronically selected and rotated. The drive linkage and the reversing swing arm push or pull the two push-pull right-angle blades of the same opening push-pull device corresponding to two adjacent output blades. The push-pull directions of the two adjacent output blades of the same opening push-pull device are opposite. At this time, the push-pull right-angle blades are hinged through the central rotation fulcrum to achieve rotation. When the vertical lower ends of the two push-pull right-angle blades are driven inwards, the horizontal ends of the push-pull right-angle blades are lifted. The horizontal lever is lifted by the vertical linkage. The horizontal lever lifts the vertical lifting rod guided by the sliding groove, thereby driving the heald frame to complete the upper opening. The electronically selected movement direction of the two push-pull right-angle blades corresponding to the other two adjacent output blades is opposite to the above, thereby driving the heald frame adjacent to the above heald frame to complete the lower opening action. The synchronous double opening action is achieved in the frame. Combined with the double nozzle and double rapier controlled by the high end to complete the double weft insertion, the upper and lower layer weft insertion can be completed at the same time, which greatly improves the weaving efficiency. When the above-mentioned flat lever is in the highest horizontal position, the heald frame completes the upper opening. When the flat lever is in the lowest horizontal position, the heald frame completes the lower opening. When the output blade corresponding to the right-angle blade is pushed or pulled on either side, the output blade is driven in reverse by electronic selection. The blade on either side will then descend or rise. At this time, the flat lever is driven to descend or rise a certain distance by the vertical lifting rod. At this time, the heald frame is at the transition point or the stationary point, which can ensure that the heald frame runs smoothly and the coordinated driving action is smooth. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 AA view; Figure 3 for Figure 1 A schematic diagram of the push-pull device with the same opening, both being push-pull right-angle blade drive structures on the right side; Figure 4 for Figure 1 A schematic diagram of the push-pull device with the same opening, both being push-pull right-angle blade drive structures on the left side; Figure 5 This is a schematic diagram of the opening state on the heddle frame of the present invention; Figure 6 This is a schematic diagram of the static state of the frame of the present invention; Figure 7 This is a schematic diagram of the opening state of the frame of the present invention.

[0013] In the diagram: 1. Frame; 2. Heald frame slide; 3. Electronic multi-arm device; 4. Output blade; 5. Drive linkage; 6. Left push-pull linkage; 7. Right push-pull linkage; 8. Left push-pull right-angle blade; 9. Right push-pull right-angle blade; 10. Left vertical linkage; 11. Right vertical linkage; 12. Flat lever; 13. Vertical lifting rod; 14. Slide groove; 15. Rotation fulcrum; 16. Swing arm rotation fulcrum; 161. Reversing swing arm; 17. Detailed Implementation

[0014] The following description, in conjunction with the accompanying drawings and embodiments, provides further details.

[0015] Figure 1-2 As shown: A common single-opening electronic multi-arm driven internal double-opening device includes a frame 1, a heald frame 2, a heald frame slide 3, an electronic multi-arm device 4, an output blade 5, a drive linkage 6, a left push-pull linkage 7, a right push-pull linkage 8, a left push-pull right-angle blade 9, a right push-pull right-angle blade 10, a left vertical linkage 11, a right vertical linkage 12, a flat lever 13, a vertical lifting rod 14, a sliding groove 15, and a reversing swing arm 17.

[0016] like Figure 1-4As shown, the heald frame 2 is in a constrained up-and-down lifting state with the inner heald frame slide groove 3 of the frame 1 on both sides. The lower end of the heald frame 2 is symmetrically supported by two vertical lifting rods 14. The lower part of each vertical lifting rod 14 is guided vertically and horizontally through the lower slide groove 15. The middle part of the vertical lifting rod 14 is hinged to the midpoint of the flat lever 13. The left and right ends of the flat lever 13 are respectively hinged to the upper ends of the symmetrically arranged left vertical connecting rod 11 and right vertical connecting rod 12. The middle parts of the left push-pull right angle blade 9 and right push-pull right angle blade 10 are symmetrically supported by the rotation fulcrum 16 and can be rotatably supported on the frame 1 or the bearing seat, side plate, and base connected to the frame 1. The lower ends of the left vertical connecting rod 11 and right vertical connecting rod 12 are respectively hinged to the horizontal ends of the symmetrically arranged left push-pull right angle blade 9 and right push-pull right angle blade 10 away from the rotation fulcrum 16. The two left push-pull right angle blades connected to the two vertical lifting rods 14 are respectively hinged to the horizontal ends of the symmetrically arranged left push-pull right angle blade 9 and right push-pull right angle blade 10. The lower vertical end of blade 9 is hinged to a left push-pull linkage 7. The lower vertical ends of two right push-pull right-angle blades 10 connected to the two vertical lifting rods 14 are hinged to a right push-pull linkage 8. One output blade 5 of the electronic multi-arm device 4 on the right side of the frame 1 is connected to one end of the drive linkage 6. The electronic movement direction of the other output blade adjacent to the above-mentioned output blade 5 is opposite. The lower ends of a reversing swing arm 17 are respectively hinged to the left and right push-pull linkages 7 on one side of the electronic multi-arm device 4. The upper end of the reversing swing arm 17 is hinged to the frame or the bearing seat, side plate, or base connected to the frame via the swing arm rotation fulcrum 161. The other end of the drive linkage 6 is hinged to the lower end of the reversing swing arm 17. The hinge position of the reversing swing arm 17 with the left and right push-pull linkages 7 is different from the hinge position with the drive linkage 6.

[0017] like Figure 5 As shown, when the horizontal ends of the left and right push-pull right-angle blades 9 and 10 are at their highest points, the flat lever 13 is in a horizontal state. At this time, the vertical lifting rod 14 is driven to rise to its highest position, and the heald frame 2 is pushed up to the highest opening position by the vertical lifting rod. The output blade 5 of the electronic multi-arm device 4 is electronically selected, and the reversing swing arm 17 is pushed by the drive linkage 6. The reversing swing arm 17 drives the left push-pull linkage 7 to move to the left, so that the left push-pull right-angle blade 9 rotates around the central rotation fulcrum 16. The horizontal end of the left push-pull right-angle blade 9 sinks and drives the left side of the flat lever 13 to descend through the left vertical linkage 11. Under the guidance and constraint of the sliding groove 15, the vertical lifting rod 14 descends, and the heald frame 2 descends to the middle point, the rest point, or the transition point.

[0018] like Figure 6 As shown, in Figure 5 After the descent reaches a stationary point, the output blade of the electronic multi-arm device is electronically selected, driving the right push-pull right-angle blade 10 to move to the right. This causes the right push-pull right-angle blade 10 to rotate around its central pivot point 16. The horizontal end of the right push-pull right-angle blade 10 sinks and drives the right side of the flat lever 13 to descend via the right vertical connecting rod 12. Under the guidance and constraint of the sliding groove 15, the vertical lifting rod 14 descends. When the flat lever 13 is horizontal again, the heddle frame 2 descends to the lowest lower opening position.

[0019] In this embodiment, two adjacent output blades 5 of the electronic multi-arm device 4 drive the upper opening, midpoint, and lower opening of a heald frame, allowing adjacent heald frames to simultaneously achieve double-opening operation. Multiple heald frames can be driven as needed, depending on the actual number of output blades. The connection position between the drive linkage 6 and the output blades 5 can be adjusted as needed, and the rotation angle of the left and right push-pull right-angle blades can be adjusted to meet the adjustment of different opening sizes.

[0020] In the above embodiments, structures such as the sliding groove and the hinge shaft in the middle of the push-pull right-angle blade can be directly installed inside the frame or on the base of the frame. This structure and technology are common choices in the loom and machinery industries, and will not be described in detail in this application.

[0021] The size and scale of the accompanying drawings in the above embodiments are for illustrative purposes only, and the actual opening distance is not limited by the size of the accompanying drawings.

[0022] Based on the above embodiments, the push-pull linkage driven structure by the output blade of the electronic multi-arm device can also be replaced by a direct connection, a reversing linkage, or other structures. Its function is to structure it according to the sequence of the output blades and the left and right driving requirements of the push-pull linkage, so as to satisfy the right-angle blade with blades to rotate around its rotation fulcrum, thereby driving the vertical lifting rod up and down via the flat lever.

Claims

1. An in-machine double-opening device driven by a conventional single-opening electronic multi-arm, comprising a frame, a conventional single-opening electronic multi-arm device, and multiple heald frames, wherein the conventional single-opening electronic multi-arm device is disposed on one side of the frame, characterized in that: Each frame is connected to one or more vertical lifting rods. Each lifting rod has a horizontal lever hinged to its midpoint. The horizontal lever is horizontally positioned and connected to an open push-pull device. The open push-pull device includes two symmetrically arranged vertical connecting rods and two symmetrically arranged push-pull right-angle blades. The upper ends of the two vertical connecting rods are respectively hinged to the two ends of the horizontal lever, and the lower ends of the two symmetrically arranged push-pull right-angle blades are respectively hinged to the horizontal ends away from the rotation fulcrum. The symmetrically arranged push-pull right-angle blades on both sides have rotation fulcrums at right-angle positions and are sleeved on the vertical levers. The lifting rod is symmetrically fixed on the support shaft on the frame and is in a hinged and rotatable state. The vertical lower ends of the left push-pull right-angle blades of the vertical lifting rods of the same brown frame are all hinged to the same push-pull connecting rod, and the vertical lower ends of the right push-pull right-angle blades are all hinged to another push-pull connecting rod. The two push-pull connecting rods are arranged adjacent and parallel and are each hinged to a reversing swing arm. The two reversing swing arms are respectively hinged to one end of the drive connecting rod, and the other end of the two drive connecting rods are respectively hinged to the two output blades of the ordinary single-opening electronic multi-arm and are driven and controlled by them respectively.

2. The internal double-opening device of a conventional single-opening electronic multi-arm drive according to claim 1, characterized in that: It also includes multiple sliding grooves connected to the frame or the base below the frame, and multiple vertical lifting rods corresponding to the heald frame are inserted into the sliding grooves to form an upper and lower constrained guiding state.

3. The internal double-opening device of a conventional single-opening electronic multi-arm drive according to claim 1, characterized in that: The frame is provided with heald frame grooves at both ends of the heald frame.

4. The internal double-opening device of a conventional single-opening electronic multi-arm drive according to claim 1, characterized in that: The upper end of the vertical lifting rod is hinged to the heald frame, or the upper end of the vertical lifting rod is fixedly connected to the heald frame by a locking block.

5. The internal double-opening device of a conventional single-opening electronic multi-arm drive according to claim 1, characterized in that: The hinge points of the drive linkage and the reversing arm, and the hinge points of the push-pull linkage and the reversing arm are located at different positions.

6. The internal double-opening device of a conventional single-opening electronic multi-arm drive according to claim 1, characterized in that: One or more reversing arms and corresponding connecting rods can be set between the push-pull right-angle blade and the ordinary single-opening electronic multi-arm output blade for transmission.

7. The internal double-opening device of a conventional single-opening electronic multi-arm drive according to claim 6, characterized in that: One of the ordinary single-opening electronic multi-arm output blades has a right-angle blade on one side replacing the reversing swing arm.