Modular heald motion coupling mechanism

Abstract

This utility model relates to the field of heald frame installation technology for looms, and in particular to a modular heald frame motion coupling mechanism, including a bracket with both ends bent upwards and a first guide rail installed on both sides. The advantages of this utility model are: by setting up a drive motor, crank, first connecting rod, second connecting rod, transmission rod, and actuating rod, the drive motor is energized and operates. Utilizing the crank-rocker mechanism, the slider is driven to circulate up and down within the second guide rail, thereby allowing the first and second heald frames to slide relative to each other between the first guide rails, layering the warp yarns. By setting four adjustment components, the length of the mechanism can be adjusted, thereby adjusting the relative movement amplitude of the first and second heald frames. Furthermore, the structure is simple, combining the advantages of quick assembly and adjustability, while also offering good maintainability. It enables rapid reconstruction of the motion transmission path and assembly positioning, facilitating widespread use.

Description

Technical Field

[0001] This utility model relates to the field of heald frame installation technology for looms, and in particular to a modular heald frame motion coupling mechanism. Background Technology

[0002] The heald frame is a key component of a loom, consisting of a metal or wooden frame and longitudinally arranged healds (fine steel wires or threads with heald eyes). Multiple heald frames are arranged in a specific order to form part of the shedding mechanism. The heald eyes on the healds are inserted into the warp yarns. When the heald frames move up and down, they cause the warp yarns to separate into upper and lower layers, forming a shed to facilitate the introduction of the weft yarns. Different weave patterns (such as plain weave, twill weave, and satin weave) can be achieved by controlling the sequence of heald lifting (e.g., on a multi-arm loom or jacquard loom).

[0003] When installing a heald frame, it is generally connected directly using connectors. When installing different heald frames, it is necessary to frequently disassemble and assemble the heald frame. Therefore, it is necessary to have good adjustability and quick disassembly and assembly convenience between heald frames and between heald frames and drive components. Based on this, a modular heald frame motion coupling mechanism is proposed to achieve the above functions. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a modular heald frame motion coupling mechanism, which effectively solves the deficiencies of the prior art.

[0005] To achieve the above objectives, one embodiment of the present invention provides a modular heald frame motion coupling mechanism, including a support, the two ends of which are bent upwards and a first guide rail is installed on both sides, and a first heald frame and a second heald frame are slidably installed between the two first guide rails respectively.

[0006] Both sides of the bracket are rotatably mounted with transmission rods, and two actuating rods are installed on the outer walls of the two transmission rods. Limiting grooves are opened on the sides of the four actuating rods, and a first connecting rod is installed at one end of the two transmission rods.

[0007] Two drive motors are installed at one end of the bracket near the first connecting rod, and cranks are installed at the output ends of both motors. A second connecting rod is installed between the ends of the two cranks and the two ends of the first connecting rod.

[0008] The bottom of the bracket is equipped with four second guide rails, and each of the four guide rails has a slider slidably installed inside. One side of each of the four sliders is slidably connected to a limiting groove, and the other side of each of the four sliders is rotatably connected to an adjustable component. The four adjustable components are arranged in pairs, and the tops of the two sets of adjustable components are rotatably connected to the first heald frame and the second heald frame, respectively.

[0009] In existing technologies, heald frames are typically connected to drive components via fixed connectors, resulting in a relatively rigid structure. When adjustments to weaving patterns, machine model changes, or equipment maintenance are required, the heald frames often need to be disassembled or reinstalled. Existing connection methods lack flexible adjustability and modularity, leading to cumbersome and time-consuming adjustment procedures that negatively impact production efficiency.

[0010] This modular heald frame motion coupling mechanism, through the cooperation of a drive motor and a crank-connecting rod-actuator mechanism, drives multiple heald frames to achieve stable up-and-down movement, thereby completing warp yarn layering and ensuring stable shed formation. By incorporating adjustable components, the movement amplitude of the heald frames can be flexibly adjusted to adapt to the different weaving structures' requirements for shed height, improving weaving adaptability and process flexibility. This mechanism also employs a guide rail limiting structure to constrain and guide the heald frame movement, ensuring that the heald frames move vertically and avoiding swaying and jamming, thus improving the stability of warp yarn movement and the forming accuracy of the shed. Simultaneously, the modular design facilitates quick assembly and disassembly of the heald frames and drive components, reducing maintenance difficulty and improving equipment maintainability and process changeover efficiency.

[0011] Preferably, in any of the above solutions, the support frame is provided with two legs at both ends, and the two ends of the support frame are fixedly connected to the external weaving machine body by fasteners. In this solution, the support frame is made of cast iron, which has a compressive strength much higher than its tensile strength, making it suitable for bearing pressure loads and facilitating the formation of a stable support structure to provide stable support for related components and ensure the overall stability of operation.

[0012] Preferably, in any of the above solutions, both ends of the second connecting rod are rotatably connected to the crank rod and the first connecting rod respectively by pins. This solution facilitates the formation of a crank-rocker mechanism. When the drive motor is powered on, it drives the crank rod to rotate in a circular motion. At the same time, through the rotatable connection between the second connecting rod and the first connecting rod, it drives the transmission rod to oscillate in a cycle. The overall operation is stable and the structure is simple.

[0013] Preferably, in any of the above solutions, the top ends of the four second guide rails are each fitted with an upper connecting plate by screws, and the bottom ends of the four second guide rails are each fixedly connected to the bracket by screws. This solution facilitates the limitation of the top ends of the second guide rails by the upper connecting plates, preventing deformation of the second guide rail structure, and facilitating the guidance of the vertical movement of the slider by the second guide rails. In addition, it is used to bear the impact of the actuating rod on the slider, ensuring the stable operation of the first and second heddle frames.

[0014] Preferably, in any of the above solutions, each of the four sliders near the adjusting component is threaded with two limiting nuts. This solution facilitates the limiting of the bottom end of the adjusting component, ensuring a stable fit between the bottom end of the adjusting component and one side of the slider. This enables the transmission of power, pushing the first heald frame and the second heald frame to move relative to each other, causing the warp yarns to separate (upper / lower layers) and form a shed, which facilitates the introduction of the weft yarn. At the same time, the overall structure is simple, combining the advantages of quick assembly and adjustability, and has good maintainability.

[0015] Preferably, in any of the above embodiments, the adjusting assembly includes two internally threaded tubes, a double-ended stud, and two locking nuts. The two internally threaded tubes are rotatably connected to one side of the slider, the first heald frame, and the second heald frame, respectively. The two ends of the double-ended stud are threadedly connected to the internally threaded tubes, and the two locking nuts are threadedly connected to the two ends of the double-ended stud. This design facilitates the rotation of the double-ended stud using tools. The threads at both ends of the double-ended stud rotate in opposite directions. Rotating the double-ended stud facilitates the adjustment of the length entering the two internally threaded tubes, thereby adjusting the length of the adjusting assembly. This allows for convenient control of the movement amplitude of the first heald frame and the second heald frame. Rotating the locking nuts allows for locking the position of the double-ended stud, ensuring stable operation of the entire assembly.

[0016] This utility model has the following advantages:

[0017] 1. This modular heald frame motion coupling mechanism comprises a drive motor, a crank, a first connecting rod, a second connecting rod, a transmission rod, and a lever. When the drive motor is energized, the crank-rocker mechanism drives a slider to reciprocate up-and-down within a second guide rail. This causes the first and second heald frames to slide relative to each other between the first guide rail, layering the warp yarns. Four adjustment components allow for length adjustment, thereby regulating the relative motion amplitude between the first and second heald frames. The mechanism is simple, offering advantages such as rapid assembly and adjustability, good maintainability, and quick reconstruction and assembly positioning of the motion transmission path, facilitating widespread application.

[0018] 2. This modular heddle frame motion coupling mechanism, by setting two first guide rails, limits the vertical movement of the first and second heddle frames, allowing the first and second heddle frames to move relative to each other, layering the warp yarns and forming a locking mechanism, facilitating the introduction of the weft yarns and realizing the weaving of the fabric. Through the vertical movement of the first and second heddle frames, it ensures that the warp yarns have uniform tension and accurate position during the manufacturing process, and avoids entanglement or yarn breakage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the support structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the second heddle frame structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the first heddle frame structure of this utility model;

[0023] Figure 5 This is an exploded view of the adjusting component of this utility model;

[0024] Figure 6 This is a schematic diagram of the transmission rod structure of this utility model.

[0025] In the diagram: 1-Bracket, 2-Transmission rod, 3-Slider, 4-Actuating rod, 5-Adjusting assembly, 501-Internal threaded tube, 502-Double-ended stud, 503-Locking nut, 6-First heald frame, 7-First guide rail, 8-Second heald frame, 9-Upper connecting plate, 10-Crank rod, 11-Second connecting rod, 12-Second guide rail, 13-Drive motor, 14-Limiting groove. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0027] like Figures 1 to 6 As shown, a modular heald frame motion coupling mechanism includes a support 1, with both ends of the support 1 bent upwards and a first guide rail 7 installed on both sides. A first heald frame 6 and a second heald frame 8 are slidably installed between the two first guide rails 7. Both first guide rails 7 are vertically installed and adopt a double sliding groove design, which facilitates the vertical sliding of the first heald frame 6 and the second heald frame 8, while maintaining a safe distance between the first heald frame 6 and the second heald frame 8.

[0028] Both sides of the bracket 1 are rotatably mounted with transmission rods 2. Two actuating rods 4 are installed on the outer wall of each of the two transmission rods 2. Limiting grooves 14 are opened on the side of each of the four actuating rods 4. A first connecting rod is installed at one end of each of the two transmission rods 2. Both ends of the transmission rods 2 are rotatably connected to the bracket 1 through bearings to ensure the operational stability of the two transmission rods 2 and reduce their running resistance. The limiting grooves 14 are coated with grease to reduce the friction between them and the slider 3.

[0029] Two drive motors 13 are installed at one end of the bracket 1 near the first connecting rod, and cranks 10 are installed at the output ends of both motors. A second connecting rod 11 is installed between the two cranks 10 and the ends of the two first connecting rods.

[0030] Four second guide rails 12 are installed at the bottom of the bracket 1, and sliders 3 are slidably installed inside each of the four guide rails. One side of each slider 3 is slidably connected to a limiting groove 14, and the other side of each slider 3 is rotatably connected to an adjustable component 5. The four adjustable components 5 are in pairs, and the tops of the two sets of adjustable components 5 are rotatably connected to the first heddle frame 6 and the second heddle frame 8, respectively.

[0031] The bracket 1 has two legs at both ends. The two ends of the bracket are fixedly connected to the external weaving machine body by fasteners. As an optional technical solution of this utility model, the bracket 1 is made of cast iron, which has a compressive strength much higher than its tensile strength. It is suitable for bearing pressure loads and can form a stable support structure to provide stable support for related components and ensure the stability of the overall operation.

[0032] Both ends of the second connecting rod 11 are rotatably connected to the crank rod 10 and the first connecting rod respectively by pins. As an optional technical solution of this utility model, this facilitates the formation of a crank-rocker mechanism. When the drive motor 13 is powered on, it drives the crank rod 10 to rotate in a circle. At the same time, through the rotatable connection between the second connecting rod 11 and the first connecting rod, it drives the transmission rod 2 to oscillate in a cycle. The overall operation is stable and the structure is simple.

[0033] The top ends of the four second guide rails 12 are all fitted with upper connecting plates 9 by screws, and the bottom ends of the four second guide rails 12 are all fixedly connected to the bracket 1 by screws. As an optional technical solution of this utility model, this makes it easy to limit the top ends of the second guide rails 12 by the upper connecting plates 9, prevent the structure of the second guide rails 12 from deforming, facilitate the second guide rails 12 to guide the vertical movement of the slider 3, and also bear the impact of the toggle lever 4 on the slider 3, ensuring the stable operation of the first heddle frame 6 and the second heddle frame 8.

[0034] Each of the four sliders 3 has two limit nuts threadedly connected to one side of the adjusting component 5. As an optional technical solution of this utility model, this facilitates the limiting of the bottom end of the adjusting component 5, so that the bottom end of the adjusting component 5 is stably matched with one side of the slider 3 to realize the transmission of power, drive the first heald frame 6 and the second heald frame 8 to move relative to each other, drive the warp yarn to separate (upper layer / lower layer) to form a shed, which facilitates the introduction of the weft yarn. At the same time, the overall structure is simple, and it has the advantages of quick assembly and adjustability, and good maintainability.

[0035] The adjusting assembly 5 includes two internally threaded tubes 501, a double-ended stud 502, and two locking nuts 503. The two internally threaded tubes 501 are rotatably connected to one side of the slider 3, the first heddle frame 6, and the second heddle frame 8, respectively. The two ends of the double-ended stud 502 are threadedly connected to the internally threaded tubes 501, and the two locking nuts 503 are threadedly connected to the two ends of the double-ended stud 502. As an optional technical solution of this utility model, this makes it easy to rotate the double-ended stud 502 with a tool. The threads at both ends of the double-ended stud 502 turn in opposite directions. After rotating the double-ended stud 502, it is easy to adjust the length that enters the two internally threaded tubes 501, thereby adjusting the length of the adjusting assembly 5. This facilitates the control of the movement amplitude of the first heddle frame 6 and the second heddle frame 8. Rotating the locking nuts 503 makes it easy to lock the position of the double-ended stud 502, ensuring the stable operation of the whole assembly.

[0036] This modular heald frame motion coupling mechanism requires the following steps to be used:

[0037] 1) In use, the two drive motors 13 are powered on and run, respectively driving the two cranks 10 to rotate in a circular motion;

[0038] 2) The two cranks 10 drive the transmission rod 2 to oscillate cyclically through the second connecting rod 11 and the first connecting rod;

[0039] 3) The transmission rod 2 drives the slider 3 to move vertically inside the second guide rail 12 via the actuating rod 4;

[0040] 4) The two sliders 3 drive the first heald frame 6 and the second heald frame 8 to move relative to each other via the adjusting component 5;

[0041] 5) Use tools to loosen the two locking nuts 503 respectively, then rotate the double-ended stud 502 to adjust the length of the double-ended stud 502 into the internal thread tube 501, change the length of the adjusting component 5, and control the up and down range of the first heald frame 6 and the second heald frame 8 to meet the fabric weaving requirements.

[0042] In summary, when the user operates the system, by configuring the drive motor 13, crank 10, first connecting rod, second connecting rod 11, transmission rod 3, and actuating rod 4, the drive motor 13 is powered on and runs. The crank-rocker mechanism drives the slider 3 to reciprocate up-and-down movement within the second guide rail 12, causing the first heald frame 6 and the second heald frame 8 to slide relative to each other between the first guide rail 7, thus layering the warp yarns. The four adjusting components 5 allow for length adjustment, thereby regulating the relative movement of the first heald frame 6 and the second heald frame 8. Simultaneously, the above structure... It is simple, combining the advantages of rapid assembly and adjustability, while maintaining good performance. It enables rapid reconstruction of motion transmission path and assembly positioning, facilitating widespread use. By setting two first guide rails 7, which limit the vertical movement of the first heddle frame 6 and the second heddle frame 8, the relative movement of the first heddle frame 6 and the second heddle frame 8 separates the warp yarns into layers and forms a lock, facilitating the introduction of the weft yarn and realizing the weaving of the fabric. The vertical movement of the first heddle frame 6 and the second heddle frame 8 ensures uniform tension and accurate positioning of the warp yarns during the manufacturing process, and avoids entanglement or yarn breakage.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular heald motion coupling mechanism, characterized by: Includes a bracket (1), both ends of which are bent upwards and a first guide rail (7) is installed on both sides. A first heddle frame (6) and a second heddle frame (8) are slidably installed between the two first guide rails (7). Both sides of the bracket (1) are rotatably mounted with transmission rods (2), and two actuating rods (4) are installed on the outer walls of the two transmission rods (2). Limiting grooves (14) are opened on the sides of the four actuating rods (4), and a first connecting rod is installed at one end of the two transmission rods (2). Two drive motors (13) are installed at one end of the bracket (1) near the first connecting rod, and crank rods (10) are installed at the output ends of both motors. A second connecting rod (11) is installed between the ends of the two crank rods (10) and the two first connecting rods. The bottom of the bracket (1) is equipped with four second guide rails (12), and each of the four guide rails is slidably installed with a slider (3). One side of each of the four sliders (3) is slidably connected to a limiting groove (14), and the other side of each of the four sliders (3) is rotatably connected to an adjustable component (5). The four adjustable components (5) are arranged in pairs, and the tops of the two sets of adjustable components (5) are rotatably connected to the first heddle frame (6) and the second heddle frame (8) respectively.

2. A modular harness motion coupling mechanism according to claim 1, characterized in that: The bracket (1) is provided with two legs at both ends, and the two ends of the bracket are fixedly connected to the external weaving machine body by fasteners.

3. The modular heald frame motion coupling mechanism according to claim 2, characterized in that: Both ends of the second connecting rod (11) are rotatably connected to the crank rod (10) and the first connecting rod respectively by pins.

4. A modular harness motion coupling mechanism according to claim 3, characterized in that: The top ends of the four second guide rails (12) are all fitted with upper connecting plates (9) by screws, and the bottom ends of the four second guide rails (12) are all fixedly connected to the bracket (1) by screws.

5. A modular heald motion coupling mechanism according to claim 4, characterised in that: Each of the four sliders (3) near the adjustment assembly (5) is threaded with two limit nuts.

6. The modular heald frame motion coupling mechanism according to claim 5, characterized in that: The adjustment assembly (5) includes two internally threaded tubes (501), a double-ended stud (502), and two locking nuts (503). The two internally threaded tubes (501) are rotatably connected to one side of the slider (3), the first heddle frame (6), and the second heddle frame (8), respectively. The two ends of the double-ended stud (502) are threaded to the internally threaded tubes (501), and the two locking nuts (503) are threaded to the two ends of the double-ended stud (502).

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