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CN-122013433-A - Multiaxial warp knitting machine capable of knitting carbon fiber and glass fiber

CN122013433ACN 122013433 ACN122013433 ACN 122013433ACN-122013433-A

Abstract

The invention relates to the technical field of textile machinery equipment manufacture, in particular to a multi-axial warp knitting machine capable of knitting carbon fibers and glass fibers, which comprises a warp knitting machine main machine, and further comprises a first weft laying assembly fixedly arranged on a frame of the warp knitting machine main machine and used for laying first fiber yarns, and a second weft laying assembly comprising a weft laying executing structure and a driving structure, wherein the weft laying executing structure is used for laying second fiber yarns, and the driving structure is fixedly arranged on the frame of the warp knitting machine main machine and used for driving the weft laying executing structure to move between a working position and a standby position.

Inventors

  • WANG SHUI
  • WANG HANZHU
  • BAI YIWEI
  • GAO SHANGSHU
  • CHENG LING

Assignees

  • 五洋纺机股份有限公司

Dates

Publication Date
20260512
Application Date
20260318

Claims (9)

  1. 1. The multi-axial warp knitting machine capable of knitting carbon fibers and glass fibers comprises a warp knitting machine main machine (7) and is characterized by further comprising a first weft laying assembly (2) fixedly arranged on a frame of the warp knitting machine main machine (7) and used for laying first fiber yarns, a second weft laying assembly (1) comprising a weft laying execution structure and a driving structure, wherein the weft laying execution structure is used for laying second fiber yarns, the driving structure is fixedly arranged on the frame of the warp knitting machine main machine (7) and used for driving the weft laying execution structure to move between a working position and a standby position, when the first fiber yarns are knitted, the weft laying execution structure is located at the standby position, the first weft laying assembly (2) is located at a weft laying area and is driven to move to the working position by the driving structure when the second fiber yarns are knitted, and the first weft laying assembly (2) keeps a fixed state and is laid in the weft laying area by the weft laying execution structure.
  2. 2. The multi-axial warp knitting machine with both carbon fibers and glass fibers according to claim 1, wherein the first type of fiber yarn is glass fibers and the second type of fiber yarn is carbon fibers.
  3. 3. Multiaxial warp knitting machine with both carbon fiber and glass fiber being knitted according to claim 1, characterized in that the weft laying execution structure comprises a side weft yarn frame (21) which is slidably mounted on a frame of a main frame (7) of the warp knitting machine, a left weft yarn moving mechanism (22) is fixedly connected to the side weft yarn frame (21), an upper supporting seat (23), a weft pulling mechanism (24), a right supporting frame (26) and a left supporting frame (27) are fixedly connected to the frame of the main frame (7) of the warp knitting machine respectively, the left weft yarn moving mechanism (22) is slidably mounted on the left supporting frame (27), the right weft yarn moving mechanism (25) is slidably mounted on the right supporting frame (26), and the driving structure is used for driving the left weft yarn moving mechanism (22) and the right weft yarn moving mechanism (25) to move.
  4. 4. A multi-axial warp knitting machine capable of knitting carbon fibers and glass fibers according to claim 3, characterized in that the left weft laying moving mechanism (22) comprises a left frame (31) which is slidably mounted on a left supporting frame (27), a left base (34) is fixedly connected to the left frame (31), a first mounting plate (35) is slidably mounted on the left base (34), a first translation member for driving the first mounting plate (35) to translate is fixedly connected to the left base (34), and a left weft laying trolley (33), a left cutter mechanism (38) and a left yarn clamping mechanism (36) are fixedly connected to the first mounting plate (35) respectively.
  5. 5. Multiaxial warp knitting machine with both carbon fiber and glass fiber being knitted according to claim 4, characterized in that the right weft laying moving mechanism (25) comprises a right base (12) slidably mounted on a right supporting frame (26), a second mounting plate (53) is slidably mounted on the right base (12), a second translation member for driving the second mounting plate (53) to translate is fixedly connected on the right base (12), and a right weft laying trolley (14) and a right yarn clamping mechanism (16) are fixedly connected on the second mounting plate (53).
  6. 6. The multi-axial warp knitting machine with both carbon fiber and glass fiber being able to be knitted according to claim 5, characterized in that the second mounting plate (53) is rotatably connected with a plurality of rollers (51), the right base (12) is fixedly connected with a guiding support plate (52), and the rollers (51) are in contact with the guiding support plate (52).
  7. 7. The multi-axial warp knitting machine with both carbon fiber and glass fiber capable of being knitted according to claim 5, wherein the driving structure comprises a first driving shaft (41) and a first synchronizing shaft (42) rotatably mounted on a right base (12), two second driving shafts (45) are rotatably connected to a left frame (31), a second synchronizing shaft (43) is rotatably connected to the left frame (31), the first driving shaft (41) and the first synchronizing shaft (42) and the second driving shaft (45) and the second synchronizing shaft (43) are connected through synchronizing pieces, an upper driving shaft (48) is rotatably connected to the upper portion of the left frame (31), a steering shaft (46) is rotatably connected to the left frame (31), the upper driving shaft (48) and one second driving shaft (45) located below the upper driving shaft (48) are connected to the steering shaft (46) through a commutator (47), rolling gears are fixedly sleeved on the outer portions of the upper driving shaft (48), the first synchronizing shaft (42) and the second synchronizing shaft (43), and the right supporting frame (26), the left supporting frame (27) and the upper supporting frame (23) are fixedly meshed with the rolling gears.
  8. 8. Multiaxial warp knitting machine with both carbon fiber and glass fiber according to claim 7 characterized in that the synchronizing member comprises transmission gears fixedly sleeved outside the first driving shaft (41), the first synchronizing shaft (42), the second driving shaft (45) and the second synchronizing shaft (43), respectively, and adjacent two transmission gears are meshed.
  9. 9. Multiaxial warp knitting machine capable of knitting carbon fiber and glass fiber according to claim 1, characterized in that a winding mechanism (9) for winding is fixedly connected to the warp knitting machine main machine (7), and a traction mechanism (8) matched with the winding mechanism (9) is installed on the warp knitting machine main machine (7).

Description

Multiaxial warp knitting machine capable of knitting carbon fiber and glass fiber Technical Field The invention relates to the technical field of textile machinery equipment manufacturing, in particular to a multi-axial warp knitting machine capable of knitting carbon fibers and glass fibers. Background Multiaxial warp knitting machines are key devices for producing high performance composite reinforced fabrics (multiaxial fabrics). The multiaxial fabric is formed by stacking a plurality of layers of unidirectional fiber bundles (usually 2-7 layers) according to different directions (such as 0 DEG, -45 DEG and 90 DEG), is sewn and fixed by knitting lines, has the advantages of high layering efficiency, designable mechanical property, good shock resistance and the like, and is widely applied to the fields of aerospace, wind power blades, rail transit, sports equipment and the like. Currently, the multi-axial warp knitting machines on the market are designed mainly for single types of fibrous materials. For example, a glass fiber multi-axial warp knitting machine adopts a conventional weft laying device, is suitable for knitting glass fibers, and a carbon fiber multi-axial warp knitting machine adopts a high-precision weft laying device, is suitable for knitting carbon fibers. The special mode of the special machine can ensure the knitting quality of specific materials, but also has obvious limitations that the equipment utilization rate is low, the production replacement cost is high, enterprises need to configure a plurality of special equipment for different materials, and the equipment investment and the plant occupation are increased. However, the physical properties of the carbon fiber and the glass fiber are essentially different, namely the carbon fiber has the characteristics of high modulus, low elongation (about 1.5%), high brittleness, easy surface damage and the like, is extremely sensitive to tension fluctuation, friction contact and bending radius in the weft laying process, and the glass fiber has better toughness and elongation and higher latitude in the weft laying process. Therefore, the conventional weft laying device suitable for glass fibers is designed with passive tension control, a small-radius yarn guiding path, a conventional yarn clamping mechanism and the like, and if the device is directly used for weaving carbon fibers, the device is extremely easy to cause carbon fibers to generate broken filaments, internal microcracks and even fracture, and the product quality cannot be ensured. On the contrary, if the weft laying device which is designed for the carbon fiber and has high precision, low friction and constant tension control is used for weaving the glass fiber, the waste of equipment cost and the unmatched productivity can be caused. With the continuous expansion of the application field of composite materials, the market demand for multiaxial fabrics is increasingly diversified, and the same enterprise often needs to produce fabric products with various materials and specifications. How to realize specialized and high-quality braiding of two materials with different characteristics of carbon fiber and glass fiber on a multi-axial warp knitting machine, not only ensures the precision requirement of carbon fiber braiding, but also considers the economical efficiency of glass fiber braiding, and becomes a technical problem to be solved in the field. Thus, there is a need for a related installation that is more compatible with the needs of use in order to solve the above-mentioned problems. Disclosure of Invention In view of the above, the present invention aims to provide a multi-axial warp knitting machine capable of knitting both carbon fibers and glass fibers, so as to solve the above-mentioned problem of how to implement specialized and high-quality knitting of two materials on a single device. The multi-axial warp knitting machine comprises a warp knitting machine main machine, a first weft laying assembly, a second weft laying assembly and a driving structure, wherein the first weft laying assembly is fixedly arranged on a frame of the warp knitting machine main machine and is used for laying first fiber yarns, the second weft laying assembly comprises a weft laying executing structure and the driving structure, the weft laying executing structure is used for laying second fiber yarns, the driving structure is fixedly arranged on the frame of the warp knitting machine main machine and is used for driving the weft laying executing structure to move between a working position and a standby position, when the first fiber yarns are knitted, the weft laying executing structure is located at the standby position, the first weft laying assembly is located in a weft laying area and is used for carrying out weft laying when the second fiber yarns are knitted, the driving structure drives the weft laying executing structure to move to the working position, and the first weft laying