Jacquard ribbon loom head structure

Abstract

The utility model discloses a jacquard ribbon loom tap structure has two wallboards, and each wallboard is equipped with tap drive structure, and each tap drive structure contains coaxial connection first arm piece and second arm piece of connecting rod, eccentric drive assembly, staggered activity subassembly and jacquard subassembly, and is equipped with the link axle connection each staggered activity subassembly. Among them, by each eccentric drive assembly rotation, and through the connecting rod makes each first arm piece and each second arm piece with the connecting rod as the axle, respectively along close or far from the corresponding eccentric drive assembly swing rotation alternately, to drive each staggered activity subassembly swing rotation together, further drive each jacquard subassembly repeatedly close, far from corresponding staggered activity subassembly, at this moment, the connecting rod can reduce the condition of machine table shaking, to improve the stability of operation and ribbon quality.

Description

Technical Field

[0001] This utility model relates to a head structure for a jacquard ribbon weaving machine, specifically a head structure installed on a jacquard ribbon weaving machine to drive the jacquard knife to rise and fall. Background Technology

[0002] A jacquard ribbon loom is a device used to weave ribbons. The "jacquard" function allows the ribbon to display different patterns, designs, or text. In order for the ribbon to display these designs, the machine pulls the warp yarns by moving the jacquard knives up and down, creating different sheds. When the weft yarns pass through, they form patterns. The most important drive end in the jacquard ribbon loom is usually called the head structure. It is responsible for transmitting power to each row of jacquard knives, allowing the jacquard knives to rise or fall accurately. It is the core of the machine's operation.

[0003] In existing jacquard ribbon loom structures, the head mechanism mostly uses components such as eccentric wheels, rocker arms, and connecting rods to drive the jacquard knives. These eccentric components generate back-and-forth swinging and rotating motions, which in turn drive the entire jacquard knife holder to move up and down. However, because the motion trajectory of the eccentric drive is not symmetrical, and these structures are usually installed on the outside of the head, the machine will be subjected to torques from different directions during operation, resulting in lateral and vertical swaying. Once this eccentric force accumulates to a certain extent, in addition to making the entire machine unstable, it may also cause inaccurate jacquard knife movement and abnormal yarn tension, further affecting the quality of the ribbon.

[0004] Furthermore, as the machine shakes more and more severely, the relative positions of the warp and weft yarns will shift, causing problems such as yarn snagging, tangling, or even breakage. Especially during long-term continuous production, this shaking can lead to errors in fabric patterns or designs, and in severe cases, the entire batch of finished products may need to be scrapped. In addition to reducing production efficiency and wasting raw materials, it also increases the time and expense costs of maintenance.

[0005] In view of this, how to provide a mechanism that reduces the shaking caused by eccentric drive, so as to improve the stability of jacquard weaving machines during operation and avoid defects or scrap in the subsequent production of finished products, is now a key development direction for companies in related fields. Utility Model Content

[0006] The purpose of this utility model is to improve the stability of jacquard looms during use and enhance product quality. It avoids the common problem of conventional jacquard loom structures easily shaking due to eccentric forces generated during operation, leading to decreased webbing quality or pattern misalignment, affecting precision and causing unstable quality. To achieve the above objectives and improve upon the shortcomings of conventional designs, this utility model provides a head structure for a jacquard weaving machine. It has two parallel wall plates, and each of the two wall plates has a head drive structure on its outer wall. Each head drive structure includes: a first arm and a second arm, one end of which is coaxially connected to a connecting rod. The connecting rod is laterally positioned between the two wall plates, allowing the first and second arms to swing synchronously; and an eccentric drive assembly, each eccentric drive assembly integrally connected to its corresponding wall plate and connected to its corresponding first and second arm. The system consists of several components: an eccentric drive assembly that drives the corresponding first and second arm components to oscillate and rotate around the connecting rod; an interleaved movable assembly with one end connected to the corresponding first and second arm components; a plurality of jacquard assemblies, each connected to the other end of the corresponding interleaved movable assembly; and a connecting shaft horizontally positioned between the two wall panels, with both ends connected to the interleaved movable assembly. By rotating the eccentric drive assembly, the first and second arm components oscillate and rotate around the connecting rod, moving towards or away from the corresponding eccentric drive assembly. This causes the interleaved movable assembly to oscillate and rotate together, further driving the jacquard assembly to repeatedly approach and move away from the corresponding interleaved movable assembly. In this process, the connecting rod reduces machine sway, improving the stability of operation and weaving quality.

[0007] Based on the technology defined above, the advantages of this utility model are that the left and right corresponding swing design, combined with the linkage structure configuration, and the linkage assists the overall structure to maintain high stability in the driving state, reducing the shaking caused by eccentric drive. This makes the jacquard operation more stable and smooth, and helps to improve the accuracy to ensure the accuracy of the webbing pattern and the consistency of the product. It can be seen that this utility model is indeed practical and progressive, and is worthy of promotion in the industry. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0009] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0010] Figure 3 For the present invention Figure 2 Another perspective of the three-dimensional structure diagram;

[0011] Figure 4For the present invention Figure 2 Front view;

[0012] Figure 5 For the present invention Figure 2 A schematic diagram of the left side structure;

[0013] Figure 6 For the present invention Figure 2 A schematic diagram of the structure on the right side;

[0014] Figure 7 For the present invention Figure 2 Top view;

[0015] Figure 8 For the present invention Figure 2 A partially enlarged structural diagram;

[0016] Figure 9 For the present invention Figure 2 Another enlarged structural diagram;

[0017] Figure 10 For the present invention Figure 3 A partially enlarged structural diagram;

[0018] Figure 11 For the present invention Figure 5 A partially enlarged structural diagram;

[0019] Figure 12 This is a schematic diagram of the structure of the bakelite spacer of the present invention;

[0020] Figure 13 This is a schematic diagram of the structure of the present invention, which combines the interlaced movable components and the jacquard components using fasteners;

[0021] Figure 14 This is a schematic diagram of the structure in use of the present invention;

[0022] Explanation of markings in the diagram:

[0023] Wall panel 1

[0024] Leading structure 2

[0025] First arm component 21

[0026] Second arm component 22

[0027] Eccentric drive component 23

[0028] First connecting arm 231

[0029] First synchronous pulley 232

[0030] Eccentric shaft 233

[0031] Second connecting arm 234

[0032] Second synchronous pulley 235

[0033] Wanxiang Bearing 236

[0034] Interleaved Activity Components 24

[0035] First swing arm 241

[0036] Second swing arm 242

[0037] First mounting hole 243

[0038] Jacquard components 25

[0039] Connection component 251

[0040] Fixing hole 2511

[0041] Second mounting hole 2512

[0042] Horizontal plate 252

[0043] Vertical board 253

[0044] Clamping part 2531

[0045] Lifting knife block 254

[0046] Link 3

[0047] Link axis 4

[0048] Drive motor 5

[0049] Bakelite partition 6

[0050] Vertical rod 61

[0051] Positioning pin 7

[0052] Fastener 8 Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0054] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0055] The following is a reference to the appendix. Figure 1 To be continued Figure 14 This invention describes a head structure for a jacquard ribbon weaving machine, comprising two parallel wall plates 1, each with a head drive structure 2 on its outer wall. Each head drive structure 2 includes: a first arm 21 and a second arm 22, one end of which is coaxially connected to a connecting rod 3, which is laterally positioned between the two wall plates 1 to allow the first arm 21 and the second arm 22 to swing synchronously; an eccentric drive assembly 23, each eccentric drive assembly 23 integrally connected to a corresponding wall plate 1 and connected to the corresponding first arm 21 and second arm 22, each eccentric drive assembly 23 driving the corresponding first arm 21 and second arm 22 to swing and rotate around the connecting rod 3; and an interleaved movable assembly 24. One end of each component is connected to the corresponding first arm 21 and the second arm 22; a plurality of jacquard assemblies 25 are respectively assembled with the other end of the corresponding interlaced movable assembly 24; a connecting shaft 4 is horizontally arranged between the two wall plates 1, and both ends of the connecting shaft 4 are respectively connected to each interlaced movable assembly 24; wherein, by rotating each eccentric drive assembly 23, and through the connecting rod 3, each first arm 21 and each second arm 22 swings and rotates alternately around the connecting rod 3, moving closer to or away from the corresponding eccentric drive assembly 23, thereby driving each interlaced movable assembly 24 to swing and rotate together, further driving each jacquard assembly 25 to repeatedly move closer to and away from the corresponding interlaced movable assembly 24. At this time, the connecting rod 3 can reduce the shaking of the machine, thereby improving the stability of operation and weaving quality. The drawings used in this document are only for auxiliary illustration of this utility model and are not intended to limit this utility model.

[0056] When the machine is started, external force will drive the eccentric drive components 23 on both sides to start operating. The eccentric drive components 23 will drive the first arm 21 and the second arm 22 connected to it to swing alternately around the horizontally arranged connecting rod 3 as the rotation center. Since the coaxial ends of the first arm 21 and the second arm 22 are fixed to the connecting rod 3, when the eccentric drive components 23 rotate, the first arm 21 and the second arm 22 can swing alternately in opposite directions. As the first arm 21 and the second arm 22 swing, the alternating movable components connected to them will also swing synchronously, further driving the jacquard component 25 connected to the other end of the alternating movable component to perform up and down or reciprocating motion towards and away from the alternating movable component 24, thus driving the jacquard component 25 to perform jacquard action. During this process, since the eccentric drive assembly 23 is integrally connected to the wall panel 1, it helps to improve the symmetry and accuracy of the transmission, keep the movements of both sides consistent, and reduce transmission errors. At the same time, since the first arm 21 and the second arm 22 share the same rotation axis as the connecting rod 3, the unbalanced torque generated by the eccentric rotation can be effectively reduced through the support of the connecting rod 3, thereby reducing the shaking phenomenon of the entire machine and helping to improve the stability and webbing quality during continuous operation.

[0057] Based on the above description, the following further describes other technical and structural features of this utility model. To make the jacquard movement more stable and symmetrical, and to ensure an even distribution of force during transmission, each interlaced movable component 24 further includes a first swing rod 241 and a second swing rod 242. Each first swing rod 241 and its corresponding second swing rod 242 are coaxially connected to the connecting shaft 4 at their mid-sections, forming a cross-swinging combination mechanism. Furthermore, one end of each first swing rod 241 is connected to the corresponding first arm member 21, while the other end is connected to any corresponding jacquard component 25; similarly, each second swing rod 241... One end of 2 is connected to the corresponding second arm 22, and the other end is also connected to another corresponding jacquard assembly 25. Through this structure, when the first arm 21 and the second arm 22 swing, the action can be synchronously transmitted to the corresponding jacquard assembly 25 through the cross-configured first swing rod 241 and second swing rod 242, so as to achieve the effect of coordinated driving and stable jacquard action. In addition, the link shaft 4 adopts a fulcrum hierarchical design, and its second fulcrum is higher than the first fulcrum in the vertical direction, so that the torque that needs to be overcome during the overall transmission process is relatively small, thereby reducing the energy consumption during driving and helping to improve the overall system's operating efficiency and labor-saving effect.

[0058] Furthermore, in order to stably transmit power and ensure that each arm component can swing smoothly in sync, each eccentric drive assembly 23 further includes a first connecting arm 231, a first synchronous wheel 232, an eccentric shaft 233, a second connecting arm 234, a second synchronous wheel 235, and a universal bearing 236. Each universal bearing 236 is respectively assembled inside the corresponding wall panel 1. Each eccentric shaft 233 is respectively connected to the corresponding universal bearing 236. Each first synchronous wheel 232 and each second synchronous wheel 235 are respectively eccentrically connected to the corresponding eccentric shaft 233. One end of each first connecting arm 231 is respectively connected to the corresponding first synchronous wheel 232, and the other end of each first connecting arm 231 is respectively connected to the corresponding first arm component 21. One end of each second connecting arm 234 is respectively connected to the corresponding second synchronous wheel 235, and the other end of each second connecting arm 234 is respectively connected to the corresponding second arm component 22. When the eccentric shaft 233 rotates, it can drive the first synchronous pulley 232, the second synchronous pulley 235, each first connecting arm 231 and each second connecting arm 234 to reciprocate, thereby driving the corresponding first arm 21 and second arm 22 to move alternately, ensuring the continuity and stability of the overall driving action. In addition, the eccentric shaft 233 can be coaxial at this time, that is, the eccentric shaft 233 is located between the two wall plates 1, and its two ends extend through each wall plate 1, and the left and right eccentric shafts 233 are coaxial. Furthermore, the universal bearing 236 can effectively release the stress concentration in the transmission path in response to the small angle difference caused by the rotation angle and the sway of the first connecting arm 231 and the second connecting arm 234 during the transmission process, thereby reducing the torque load required by the main shaft, making the overall system smoother and more durable during long-term operation.

[0059] In addition, in order to provide a stable external force to drive the operation of each eccentric drive component 23, at least one drive motor 5 is provided. The at least one drive motor 5 is connected to each eccentric shaft 233 and drives each eccentric drive component 23 to swing and rotate. The connection method can be a direct connection, in which the drive motor 5 is directly connected to the eccentric shaft 233 and started, so as to drive the eccentric shaft 233 to rotate and drive the whole device to run. Alternatively, it can be an indirect connection, in which other auxiliary accessories, such as belts, are connected to the drive motor 5 and the eccentric shaft 233 respectively to achieve the effect of transmitting power to drive the machine to run.

[0060] To stabilize the swinging motion and ensure the guiding accuracy and alignment consistency of the jacquard components 25 during lifting and lowering, each jacquard component 25 further includes a connecting component 251, two horizontal plates 252, a plurality of vertical plates 253, and a plurality of lifting blocks 254. One end of each connecting component 251 is connected to the corresponding staggered movable component 24, and the other end of each connecting component 251 is connected to the corresponding two horizontal plates 252. Each vertical plate 253 is fixed at one end between the corresponding two horizontal plates 252. Each lifting block 254 is disposed at the other end of each vertical plate 253. Furthermore, each lifting block 254 is arranged at a distance from the staggered movable component 24. This structure allows the jacquard components 25 to maintain neat positioning during operation and helps control the path stability when moving up and down or approaching or away from the staggered movable component 24, thereby improving the accuracy of the overall jacquard motion and the weaving quality.

[0061] Continuing from the previous explanation, to prevent the jacquard assembly 25 from shifting left and right or getting stuck during repeated lifting and lowering, a bakelite partition 6 is further provided on the outer side of each of the two wall panels 1. Each lifting block 254 is positioned between the bakelite partitions 6, and a plurality of vertical rods 61 are provided on the outer side of each bakelite partition 6. The bakelite partitions 6 and the vertical rods 61 together restrict the left and right swaying of each lifting block 254 and maintain its lifting and lowering guidance. Compared with the traditional method of directly slotting the wall panel 1 as a guide structure, the design of the bakelite partitions 6 and vertical rods 61 has better wear resistance and service life, and can also reduce the impact of machining accuracy errors on the guiding effect. Disassembly and replacement are also relatively easy, resulting in low subsequent maintenance costs, effectively extending the service life of the equipment and improving operational stability. Furthermore, each vertical plate 253 has a clamping part 2531 at the end away from each horizontal plate 252. Each lifting block 254 is respectively assembled with the corresponding clamping part 2531, so that each clamping part 2531 clamps and fixes the corresponding lifting block 254. This structure allows the lifting block 254 to be fixed with more even force, improves clamping stability, and avoids loosening due to long-term use. Moreover, the clamping structure is more convenient for disassembly and adjustment, which helps to speed up the tool change and improve overall maintenance and production efficiency.

[0062] Furthermore, to ensure accurate positioning of each arm component during installation and to maintain a stable, non-displaceable state during machine operation, a plurality of positioning pins 7 are provided. Each positioning pin 7 passes through the corresponding first arm component 21 or second arm component 22, thereby fixing each first arm component 21 and each second arm component 22 to the connecting rod 3. The positioning pins 7 enable quick positioning during the installation of the first arm component 21 and the second arm component 22, effectively reducing installation errors and eliminating the need for manual angle adjustments. Simultaneously, since the positioning pins 7 stably fix the rotation axis position of the first arm component 21 and the second arm component 22, they also prevent displacement or swaying of the first arm component 21 and the second arm component 22 due to vibration during high-speed reciprocating oscillation of the machine. This also facilitates subsequent maintenance operations; if the first arm component 21 or the second arm component 22 needs to be replaced, it can be quickly replaced simply by removing the positioning pins 7, significantly improving maintenance efficiency and reducing maintenance costs.

[0063] Furthermore, to ensure accurate alignment of each jacquard component 25 during installation and to guarantee the overall structural stability, each staggered movable component 24 further has a plurality of first mounting holes 243, and each connecting component 251 further has a plurality of fixing holes 2511 and a plurality of second mounting holes 2512. A plurality of fixing members 8 are also provided, each of which passes through a corresponding fixing hole 2511 and a corresponding first mounting hole 243 or second mounting hole 2512, thus fixing each staggered movable component 24 to its corresponding jacquard component 25. The fixing members 8 enhance the stability of the connection between the staggered movable component 24 and the jacquard component 25, preventing structural loosening or displacement due to prolonged operation or vibration. Moreover, when the jacquard component 25 or the staggered movable component 24 requires maintenance, component replacement, or angle adjustment, the fixing members 8 can be removed for operation, significantly simplifying maintenance procedures and improving the overall machine's flexibility and practicality.

[0064] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A head structure for a jacquard ribbon weaving machine, characterized in that, It has two parallel wall panels, and the outer wall of each of the two wall panels has a faucet drive structure, each faucet drive structure comprising: A first arm and a second arm are provided, with one end of each first arm and each second arm coaxially connected to a connecting rod. The connecting rod is laterally positioned between the two wall panels, allowing each first arm and each second arm to swing synchronously. An eccentric drive assembly is provided, with each eccentric drive assembly integrally connected to the corresponding wall panel and connected to the corresponding first arm and second arm. Each eccentric drive assembly drives the corresponding first arm and second arm to swing and rotate around the connecting rod as the axis. An interleaved moving assembly, one end of which is connected to the corresponding first arm and second arm respectively; Multiple jacquard components, each jacquard component is respectively connected to the other end of the corresponding interlaced movable component; A connecting shaft is horizontally disposed between the two wall panels, and both ends of the connecting shaft are respectively connected to each of the interlaced moving components; In this system, by rotating each eccentric drive component, and through the connecting rod, each first arm and each second arm component swings and rotates alternately around the connecting rod as the axis, moving closer to or further away from the corresponding eccentric drive component. This drives each interlaced moving component to swing and rotate together, further driving each jacquard component to repeatedly move closer to and further away from the corresponding interlaced moving component. At this time, the connecting rod can reduce the machine's shaking, thereby improving the stability of operation and weaving quality.

2. The jacquard ribbon loom head structure according to claim 1, wherein, Each staggered moving component further includes a first swing rod and a second swing rod. The centers of each first swing rod and the corresponding second swing rod are coaxially connected to the link shaft. One end of each first swing rod is connected to the corresponding first arm member, and the other end of each first swing rod is connected to any jacquard component. One end of each second swing rod is connected to the corresponding second arm member, and the other end of each second swing rod is connected to another jacquard component.

3. The jacquard ribbon weaving machine head structure according to claim 1, wherein, Each eccentric drive assembly further includes a first connecting arm, a first synchronous pulley, an eccentric shaft, a second connecting arm, a second synchronous pulley, and a universal bearing. Each universal bearing is respectively assembled on the inner side of the corresponding wall panel. Each eccentric shaft is respectively connected to the corresponding universal bearing. Each first synchronous pulley and each second synchronous pulley are respectively eccentrically connected to the corresponding eccentric shaft. One end of each first connecting arm is respectively connected to the corresponding first synchronous pulley, and the other end of each first connecting arm is respectively connected to the corresponding first arm component. One end of each second connecting arm is respectively connected to the corresponding second synchronous pulley, and the other end of each second connecting arm is respectively connected to the corresponding second arm component.

4. The jacquard ribbon weaving machine head structure according to claim 3, wherein, At least one drive motor is provided, which is connected to each eccentric shaft and drives each eccentric drive assembly to swing and rotate.

5. The head structure of the jacquard ribbon weaving machine according to claim 1, wherein, Each jacquard component further includes a connecting component, two horizontal plates, a plurality of vertical plates, and a plurality of lifting blocks. One end of each connecting component is connected to the corresponding staggered movable component, and the other end of each connecting component is connected to the corresponding two horizontal plates. Each vertical plate is fixed at one end between the corresponding two horizontal plates, and each lifting block is disposed at the other end of each vertical plate.

6. The head structure of the jacquard ribbon weaving machine according to claim 5, wherein, Each lifting block is arranged at intervals on the side of the corresponding horizontal plate away from each interlaced moving component.

7. The head structure of the jacquard ribbon weaving machine according to claim 5, wherein, The outer sides of the two wall panels are further provided with a bakelite partition, and each knife lifting block is respectively located in the interval of each bakelite partition. The outer side of each bakelite partition is provided with a plurality of vertical rods. The bakelite partition and each vertical rod together restrict the left and right sway of each knife lifting block and maintain its lifting and lowering guidance.

8. The head structure of the jacquard ribbon weaving machine according to claim 5, wherein, Each vertical plate has a clamping part at the end away from each horizontal plate, and each lifting block is assembled with the corresponding clamping part so that each clamping part clamps and fixes the corresponding lifting block.

9. The head structure of the jacquard ribbon weaving machine according to claim 1, wherein, A plurality of locating pins are provided, each locating pin passing through the corresponding first arm or second arm, so that each first arm and each second arm are respectively assembled and fixed with the connecting rod.

10. The head structure of the jacquard ribbon weaving machine according to claim 5, wherein, Each staggered movable component further has a plurality of first mounting holes, and each connecting component further has a plurality of fixing holes and a plurality of second mounting holes. A plurality of fasteners are also provided, each fastener passing through a corresponding fixing hole and a corresponding first mounting hole or second mounting hole, so that each staggered movable component is fixed to its corresponding jacquard component.

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