Jacquard machine
By improving the transmission mechanism and using a combination of swing arm and hook arm to drive the jacquard beam lifting and lowering, the problem of uneven shed opening was solved, achieving efficient and stable operation of the jacquard machine and improving the weaving quality.
Patent Information
- Application Number
- CN202520053355.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-10
AI Technical Summary
The uneven shed opening of existing jacquard machines leads to a decrease in weaving efficiency and quality.
The transmission mechanism uses a combination of swing arm and hook arm to drive the jacquard beam to rise and fall. Through synchronous pulley and synchronous belt transmission, the jacquard mechanism can achieve stable lifting and lowering action, ensuring a large overall shed opening, which facilitates the weft yarn to pass through.
It improves weaving efficiency and quality, reduces frame vibration, and makes the structure more reasonable and stable.
Smart Images
Figure CN223646718U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an improved invention of a jacquard weaving machine, and more particularly to an improved invention of a jacquard weaving machine. Background Technology
[0002] The working principle of a jacquard machine is to use a series of mechanical or electronic controls to lift and lower the warp yarns according to a predetermined pattern, thereby forming complex patterns in the fabric. Existing jacquard mechanisms include a jacquard beam and several jacquard knives. The jacquard beam is driven by a swing arm to oscillate up and down around one end as an axis. The jacquard knives then lift or lower the warp yarns to form the shed. Because the jacquard mechanism uses an up-and-down oscillation, the shed opening is smaller near the oscillation end and larger at the oscillation end, resulting in a larger shed tilt. Therefore, areas with smaller shed openings affect the passage of the weft yarns, reducing weaving efficiency and quality. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a jacquard machine with reasonable structure and stable operation.
[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: The jacquard machine includes a frame, on which a jacquard mechanism and a transmission mechanism are provided. The jacquard mechanism includes a jacquard crossbeam and several jacquard knives. The jacquard mechanism is characterized by being driven to lift by the transmission mechanism, which includes a swing arm and a hook arm. One end of the swing arm is swaying on the frame, and the other end is hinged to the left side of the jacquard crossbeam. A first transmission arm is hinged to the middle of the swing arm, and a first eccentric transmission structure is provided at the lower end of the first transmission arm. The hook arm is swaying on the frame, with one end hinged to the right side of the jacquard crossbeam and the other end hinged to a second transmission arm. A second eccentric transmission structure is provided at the other end of the second transmission arm. The first and second eccentric transmission structures are respectively mounted on a transmission shaft, and the transmission shafts are linked together and equipped with a power source.
[0005] The jacquard mechanism is provided in two sets, which are located on both sides of the frame. Each set of jacquard mechanisms includes two jacquard mechanisms that reciprocate and alternately lift and lower. Each jacquard mechanism is equipped with a transmission mechanism, and the transmission mechanisms share a transmission shaft and a power source.
[0006] The drive shafts are connected to each other and the power source is connected to any drive shaft by synchronous pulleys and synchronous belts.
[0007] The power source is an electric motor.
[0008] The frame includes left and right wall panels and four rectangular support legs, all of which are fixed to the main unit. The two support legs on the right side are connected to the main unit by triangular plates.
[0009] Both the swing arm and the hook arm are two plates arranged side by side with a gap between them.
[0010] The beneficial effects of this utility model are that the improved jacquard machine has a reasonable structure and stable operation. The jacquard mechanism adopts a lifting action, which drives the warp yarn to form a large overall shed opening, making it easier for the weft yarn to pass through and improving weaving efficiency and quality. The transmission mechanism adopts a combination of swing arm and hook arm to disperse the force in the vertical direction and reduce vibration. Attached Figure Description
[0011] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0012] Figure 1 This is a schematic diagram of the structure of this utility model.
[0013] Figure 2 This is the main structural view of the present invention.
[0014] Figure 3 This is a right view of the structure of this utility model.
[0015] Figure 4 This utility model Figure 3 DD sectional view. Detailed Implementation
[0016] The accompanying drawings illustrate the structure of this utility model, and further details will be described below with reference to the drawings. In this embodiment, see the attached drawings. Figure 1-4The jacquard machine includes a frame 1, on which a jacquard mechanism 2 and a transmission mechanism 3 are mounted. The jacquard mechanism 2 includes a jacquard crossbeam 21 and several jacquard knives 22, which are spaced apart on the jacquard crossbeam 21. The jacquard mechanism 2 is driven to lift by the transmission mechanism 3. The transmission mechanism 3 includes a swing arm 31 and a hook arm 32. One end of the swing arm 31 is oscillatingly mounted on the frame 1. Specifically, one end of the swing arm 31 is rotatably mounted on a connecting shaft 7 of the frame 1, or one end of the swing arm 31 is hinged to a linkage arm 33, which is rotatably mounted on the connecting shaft 7. The other end of the swing arm 31 is hinged to the jacquard crossbeam 21. On the left side of beam 21, a first transmission arm 34 is hinged to the middle of swing arm 31. A first eccentric transmission structure 35 is provided at the lower end of the first transmission arm 34. The hook arm 32 is swayably mounted on the frame 1, specifically rotatably mounted on the connecting shaft 7 of the frame 1. One end of the hook arm 32 is hinged to the right side of jacquard crossbeam 21, and the other end is hinged to a second transmission arm 36. The other end of the second transmission arm 36 is provided with a second eccentric transmission structure 37. The first eccentric transmission structure 35 and the second eccentric transmission structure 37 are respectively mounted on the transmission shaft 4, and the transmission shafts 4 are linked together and equipped with a power source. Preferably, the swing arm 31 and hook arm 32 are two plates arranged side-by-side at intervals. The corresponding first transmission arm 34, second transmission arm 36, and jacquard crossbeam 21 are connected between the two plates, facilitating connection and improving transmission stability.
[0017] The working principle of this utility model is as follows: the power source drives any one of the transmission shafts 4 to rotate, and the transmission shafts 4 are linked together. The transmission shaft 4 drives the lower end of the first transmission arm 34 to rotate eccentrically through the first eccentric transmission structure 35. The upper end of the first transmission arm 34 drives the swing arm 31 to swing. The swing arm 31 drives the left part of the jacquard beam 21 to rise and fall. At the same time, another transmission shaft 4 drives one end of the second transmission arm 36 to rotate eccentrically through the second eccentric transmission structure 37. The other end of the second transmission arm 36 drives the hook arm 32 to swing. The hook arm 32 drives the right part of the jacquard beam 21 to rise and fall. That is, the swing arm 31 and the hook arm 32 cooperate with each other to jointly drive the jacquard mechanism 2 to rise and fall, thereby increasing the overall opening of the shed formed by the warp yarns, which facilitates the weft yarns to pass through. Among them, the first transmission arm 34 provides vertical traction to the swing arm 31, while the second transmission arm 36 provides horizontal traction to the hook arm 32. The two cooperate with each other to distribute the force on the frame in the vertical direction.
[0018] As a further improved implementation, the jacquard mechanism 2 is provided in two sets, which are respectively located on both sides of the frame 1. Each set of jacquard mechanisms 2 includes two jacquard mechanisms 2 that reciprocate and alternately rise and fall. Each jacquard mechanism 2 is equipped with a transmission mechanism 3, and the transmission mechanisms 3 share a transmission shaft 4 and a power source. Specifically, there are two transmission shafts 4 arranged side by side, one in front and one behind, which pass through the frame 1. The two ends of the transmission shafts 4 respectively supply power to the two sets of jacquard mechanisms 2.
[0019] As a further improved specific implementation, the transmission shafts 4 are connected to each other and the power source is connected to any transmission shaft 4 by a synchronous pulley 5 and a synchronous belt 6; preferably, the power source is a motor, the output shaft of which is provided with a synchronous pulley, and the synchronous pulley on the transmission shaft 4 is driven by the synchronous belt.
[0020] As a further improved specific implementation, the frame 1 includes left and right wall panels 11 and four rectangularly distributed support legs 12. Two connecting shafts 7 are provided between the left and right wall panels 11 and distributed front and back. The support legs 12 are all fixed to the main machine, and the two support legs on the right side are respectively connected to the main machine with triangular plates. The main machine is the loom part. The triangular plates are used to enhance the structural strength, share the reaction force of the swing arm 31 and its first transmission arm 34 on the frame 1 in the vertical direction, and play a pulling role on the frame 1.
[0021] In summary, the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A jacquard machine, comprising a frame, wherein a jacquard mechanism and a transmission mechanism are provided on the frame, the jacquard mechanism comprising a jacquard crossbeam and a plurality of jacquard knives, characterized in that: The jacquard mechanism is driven to lift by a transmission mechanism, which includes a swing arm and a hook arm. One end of the swing arm is swaying on the frame, and the other end is hinged to the left side of the jacquard crossbeam. A first transmission arm is hinged to the middle of the swing arm, and a first eccentric transmission structure is provided at the lower end of the first transmission arm. The hook arm is swaying on the frame, and one end is hinged to the right side of the jacquard crossbeam. A second transmission arm is hinged to the other end of the hook arm, and a second eccentric transmission structure is provided at the other end of the second transmission arm. The first eccentric transmission structure and the second eccentric transmission structure are respectively provided on the transmission shaft, and the transmission shafts are linked together and equipped with a power source.
2. The jacquard machine as described in claim 1, characterized in that: The jacquard mechanism is provided in two sets, which are located on both sides of the frame. Each set of jacquard mechanisms includes two jacquard mechanisms that reciprocate and alternately lift and lower. Each jacquard mechanism is equipped with a transmission mechanism, and the transmission mechanisms share a transmission shaft and a power source.
3. The jacquard machine as described in claim 1, characterized in that: The drive shafts are connected to each other and the power source is connected to any drive shaft by synchronous pulleys and synchronous belts.
4. The jacquard machine as described in claim 3, characterized in that: The power source is an electric motor.
5. The jacquard machine as described in claim 1, characterized in that: The frame includes left and right wall panels and four rectangular support legs, all of which are fixed to the main unit. The two support legs on the right side are connected to the main unit by triangular plates.
6. The jacquard machine as described in claim 1, characterized in that: Both the swing arm and the hook arm are two plates arranged side by side with a gap between them.