High-speed two-needle bar warp knitting machine

Abstract

The invention discloses a high-speed two-needle bar warp knitting machine which comprises a rack, a looping device, a guide bar device and a reciprocating driving device, the guide bar device comprises a plurality of front cradle mechanisms and a plurality of rear cradle mechanisms, and the front cradle mechanisms and the rear cradle mechanisms are oppositely distributed at the top of the rack at intervals. The front cradle mechanism and the plurality of rear cradle mechanisms swing back and forth around the cradle rotation center; the reciprocating driving device comprises a power driving part, a front vehicle main shaft driving part, a rear vehicle main shaft driving part, a front vehicle auxiliary shaft driving part and a rear vehicle auxiliary shaft driving part. The power driving part provides power for the front vehicle main shaft driving part, the rear vehicle main shaft driving part, the front vehicle auxiliary shaft driving part and the rear vehicle auxiliary shaft driving part to do reciprocating motion. Four-shaft transmission with the cams and the eccentric wheels matched with each other is adopted, the guide bar stroke is optimized, path diversification can be achieved, diversified knitting requirements are met, the knitting speed can be increased on the premise that stable operation is guaranteed, and production efficiency can be improved.

Description

Technical Field

[0001] This invention belongs to the field of textile machinery technology, and specifically relates to a high-speed double needle bed warp knitting machine. Background Technology

[0002] High-speed double-needle-bed warp knitting machines are equipped with two needle beds, enabling the knitting of fabrics with different layers and structures at high speeds, resulting in efficient and high-quality production. These machines are widely used in the manufacture of functional fabrics, such as breathable, warm, or protective materials, and are suitable for applications in sportswear, underwear, and medical materials. With continuous advancements in textile technology and changing market demands, high-speed double-needle-bed warp knitting machines are constantly innovating and developing to adapt to a wider range of applications and higher production requirements.

[0003] In existing double-needle bed warp knitting machines, the reciprocating drive devices for the loop-forming mechanism and the guide bar device are mainly of the following two types: (1) Full cam drive: Due to the limitation of the cradle motion path, the cam used to drive the comb cradle motion can only be a triangular cam. Since the triangular cam has an inflection point, it will generate vibration noise during the triangular cam motion. Moreover, long-term impact and collision can easily lead to wear and damage to components such as cams and knitting needles. In addition, the triangular cam seriously reduces the knitting speed and cannot achieve knitting speed increase.

[0004] (2) Full eccentric wheel drive. As a regular circular component, the eccentric wheel's stroke path naturally exhibits a certain regularity, severely limiting the diversity of needle movement patterns. Furthermore, as the knitting stroke increases, the required eccentricity of the eccentric wheel also increases. However, the installation space inside the frame is very limited, making it difficult to meet the space installation requirements of large-stroke warp knitting machines.

[0005] To ensure the high-speed and stable operation of a double-needle bed warp knitting machine, this invention discloses a high-speed double-needle bed warp knitting machine that adopts a four-axis transmission with cams and eccentric wheels in cooperation. This optimizes the guide bar stroke, which not only enables diversified paths to meet diverse knitting requirements, but also increases knitting speed while ensuring stable operation, thus improving production efficiency.

[0006] The specific technical solution of the present invention is as follows: A high-speed double-needle-bed warp knitting machine includes a frame, a loop-forming device, a guide bar device, and a reciprocating drive device. The loop-forming device comprises a front bobbin sinking mechanism, a rear bobbin sinking mechanism, a front bobbin needle bed mechanism, and a rear bobbin needle bed mechanism. The combing device includes several front rocker mechanisms and several rear rocker mechanisms. The several front rocker mechanisms and several rear rocker mechanisms are relatively spaced and installed on the frame. The front rocker mechanisms and several rear rocker mechanisms all reciprocate around the rocker rotation center. The reciprocating drive device includes a power drive component, a front main shaft drive component, a rear main shaft drive component, a front auxiliary shaft drive component, and a rear auxiliary shaft drive component. The power drive component provides power for the reciprocating motion of the front main shaft drive component, the rear main shaft drive component, the front auxiliary shaft drive component, and the rear auxiliary shaft drive component. The front main shaft drive component drives the front sinking mechanism and the front needle bed mechanism to perform circular reciprocating motion, respectively. The rear main shaft drive component drives the rear sinking mechanism and the rear needle bed mechanism to perform reciprocating motion, respectively. The front auxiliary shaft drive component drives the front cradle mechanism to reciprocate around the cradle rotation center, and the rear auxiliary shaft drive component drives the front cradle mechanism to reciprocate around the cradle rotation center.

[0007] Preferably, the front main shaft drive, the rear main shaft drive, the front auxiliary shaft drive, and the rear auxiliary shaft drive are all mounted on the frame, and the front main shaft drive is driven by the front auxiliary shaft drive, the rear main shaft drive is driven by the rear auxiliary shaft drive, and the power drive synchronously drives the front main shaft drive and the rear main shaft drive.

[0008] Preferably, the front spindle drive unit includes a front spindle, a front sinking cam, and a front needle bed cam. The front spindle is rotatably mounted on the frame. The front sinking cam and the front needle bed cam are both mounted on the front spindle. The front sinking cam is connected to the cam swing arm of the front sinking mechanism, and the front needle bed cam is connected to the cam swing arm of the front needle bed mechanism. The rear main shaft drive unit includes a rear main shaft, a rear sinking cam, and a rear needle bed cam. The rear main shaft is rotatably mounted on the frame. The rear sinking cam and the rear needle bed cam are both mounted on the rear main shaft. The rear sinking cam is connected to the cam swing arm of the rear sinking mechanism, and the rear needle bed cam is connected to the cam swing arm of the rear needle bed mechanism. A front pulley is installed at one end of the front axle, and a rear pulley is installed at one end of the rear axle. The front pulley and the rear pulley are connected by a first synchronous belt. One end of the front axle or the rear axle is connected to the power output end of the power drive component.

[0009] Preferably, the front subshaft drive component includes a front subshaft and a front cradle eccentric wheel. The front subshaft is rotatably mounted on the frame, the front cradle eccentric wheel is mounted on the front subshaft, and the front cradle eccentric wheel is connected to the connecting end of the front cradle mechanism. The front subshaft is connected to the front main shaft through a front gear pair. The rear subshaft drive unit includes a rear subshaft and a rear cradle eccentric wheel. The rear subshaft is rotatably mounted on the frame, and the rear cradle eccentric wheel is mounted on the rear subshaft. The rear cradle eccentric wheel is connected to the connecting end of the rear cradle mechanism. The rear subshaft is connected to the rear main shaft through a rear gear pair.

[0010] Preferably, the front main shaft drive unit drives the front auxiliary shaft drive unit through a front gear pair. The front gear pair includes a front main gear and a front auxiliary gear. The front main gear and the front auxiliary gear are respectively mounted on the front main shaft and the front auxiliary shaft, and the two mesh with each other. The rear main shaft drive unit drives the rear auxiliary shaft drive unit through the rear gear pair. The rear gear pair includes the rear main gear and the rear auxiliary gear. The rear main gear and the rear auxiliary gear are respectively mounted on the rear main shaft and the rear auxiliary shaft, and the two mesh with each other.

[0011] Preferably, the power drive component includes a drive motor, a main drive wheel, and a secondary drive wheel. The drive motor is mounted on one side of the frame, and its output end is driven by the main drive wheel. The secondary drive wheel is coaxially mounted with either the front or rear axle drive component. The main drive wheel and the secondary drive wheel are connected by a second synchronous belt.

[0012] Preferably, a plurality of pressure rollers are provided on both outer sides of the first synchronous belt, and the pressure rollers are in close contact with the outer side of the first synchronous belt.

[0013] Preferably, the front rocker mechanism includes a front rocker connecting rod, a front comb rocker assembly, a front rocker bracket, and a front eccentric wheel connecting rod. The top end of the front rocker connecting rod is connected to one end of the front comb rocker assembly. The bottom end of the front rocker connecting rod and the front eccentric wheel connecting rod are movably connected to the connecting end of the front rocker bracket. The front eccentric wheel connecting rod is mounted on the outer contour of the front rocker eccentric wheel via a bearing. The front rocker bracket is rotatably connected to the frame.

[0014] Preferably, the structure of the rear cradle mechanism is the same as that of the front cradle mechanism.

[0015] Beneficial effects: This invention discloses a high-speed double-needle bed warp knitting machine, which has the following advantages compared with the prior art: (1) The present invention optimizes the design of the front and rear cradle mechanisms. On the one hand, the cradle mechanisms are distributed on both sides, reducing the upper swing shaft structure, thereby reducing the cradle's upward swing motion, simplifying the cradle's stroke, and improving the cradle's movement speed. On the other hand, by directly connecting the cradle mechanism with the eccentric wheel, the transition swing arm is reduced, simplifying the structure of the cradle mechanism, further reducing the cradle's stroke, and improving production efficiency.

[0016] (2) The present invention uses an eccentric wheel drive instead of a triangular cam to realize the reciprocating motion of the comb cradle, which avoids the vibration and noise caused by the triangular cam and overcomes the limitation that the triangular cam cannot speed up.

[0017] (3) The present invention adopts a four-axis transmission design to realize the reciprocating motion of the coiling device and the combing device. The weaving speed of the combing device can be controlled by adjusting the transmission ratio of the gear pair. The structure is simple and can be flexibly adjusted by cooperating with the eccentric wheel drive. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the warp knitting machine structure in Embodiment 1; Figure 2 This is a schematic diagram of the reciprocating drive device in Embodiment 1. Figure 3 This is a partial structural diagram of the reciprocating drive device in Embodiment 1. Figure 1 ; Figure 4 This is a partial structural diagram of the reciprocating drive device in Embodiment 1. Figure 2 ; Figure 5 This is a schematic diagram of the front cradle mechanism in Embodiment 1.

[0019] In the diagram: Frame 1, Front carriage lowering mechanism 2-1, Rear carriage lowering mechanism 2-2, Front carriage needle bed mechanism 2-3, Rear carriage needle bed mechanism 2-4, Comb assembly 3, Front cradle mechanism 3-1, Front cradle connecting rod 3-11, Front comb cradle assembly 3-12, Front cradle bracket 3-13, Front eccentric wheel connecting rod 3-14, Rear cradle mechanism 3-2, Reciprocating drive device 4, Power drive component 4-1, Drive motor 4-11, Main drive wheel 4-12, Secondary drive wheel 4-13, Front carriage main shaft drive component 4-2, Front carriage main shaft 4-21, Front carriage lowering cam 4-22, Front carriage needle bed cam 4-23. Front pulley 4-24, rear main shaft drive component 4-3, rear main shaft 4-31, rear sinker cam 4-32, rear needle bed cam 4-33, rear pulley 4-34, front auxiliary shaft drive component 4-4, front auxiliary shaft 4-41, front cradle eccentric wheel 4-42, rear auxiliary shaft drive component 4-5, rear auxiliary shaft 4-51, rear cradle eccentric wheel 4-52, front gear pair 4-6, front main gear 4-61, front auxiliary gear 4-62, rear gear pair 4-7, rear main gear 4-71, rear auxiliary gear 4-72, first synchronous belt 4-8, second synchronous belt 4-9. Detailed Implementation

[0020] The present invention will now be described with reference to the accompanying drawings, and these improvements and modifications should also be considered within the scope of protection of the present invention. Example 1

[0021] like Figure 1 As shown, a high-speed double-needle-bed warp knitting machine includes a frame 1, a loop-forming device, a guide bar device 3, and a reciprocating drive device 4. The loop-forming device includes a front carriage sinking mechanism 2-1, a rear carriage sinking mechanism 2-2, a front carriage needle bed mechanism 2-3, and a rear carriage needle bed mechanism 2-4. The combing device 3 includes several front rocker mechanisms 3-1 and several rear rocker mechanisms 3-2. The several front rocker mechanisms 3-1 and rear rocker mechanisms 3-2 are relatively spaced and installed on the frame 1, and both the front rocker mechanisms 3-1 and the rear rocker mechanisms 3-2 reciprocate around the rocker rotation center. The reciprocating drive device 4 includes a power drive component 4-1, a front main shaft drive component 4-2, a rear main shaft drive component 4-3, a front auxiliary shaft drive component 4-4, and a rear auxiliary shaft drive component 4-5. The power drive component 4-1 provides power for the reciprocating motion of the front main shaft drive component 4-2, the rear main shaft drive component 4-3, the front auxiliary shaft drive component 4-4, and the rear auxiliary shaft drive component 4-5. The front main shaft drive component 4-2 drives the front sinking mechanism 2-1 and the front needle bed mechanism 2-3 to perform circular reciprocating motion, respectively. The rear main shaft drive component 4-3 drives the rear sinking mechanism 2-2 and the rear needle bed mechanism 2-4 to perform reciprocating motion, respectively. The front auxiliary shaft drive component 4-4 drives the front cradle mechanism 3-1 to reciprocate around the cradle rotation center, and the rear auxiliary shaft drive component 4-5 drives the front cradle mechanism 3-1 to reciprocate around the cradle rotation center.

[0022] In this embodiment 1, the specific structure of the reciprocating drive device 4 is as follows: like Figure 2 As shown, the front main shaft drive 4-2 and the rear main shaft drive 4-3 are symmetrically arranged on the frame 1, and the front auxiliary shaft drive 4-4 and the rear auxiliary shaft drive 4-5 are symmetrically arranged on the frame 1. The front main shaft drive 4-2 and the front auxiliary shaft drive 4-4 are connected in a transmission manner, and the front main shaft drive 4-2 provides power to the front auxiliary shaft drive 4-4. The rear main shaft drive 4-3 and the rear auxiliary shaft drive 4-5 are connected in a transmission manner, and the rear main shaft drive 4-3 provides power to the rear gear pair 4-7. The power drive 4-1 synchronously drives the front main shaft drive 4-2 and the rear main shaft drive 4-3 to work.

[0023] In this invention, the front main axle drive component 4-2 and the front auxiliary axle drive component 4-4, as well as the rear main axle drive component 4-3 and the rear auxiliary axle drive component 4-5, can be connected using structures such as gear pairs and sprocket pairs that enable transmission. For example, in this embodiment 1, such as... Figure 4As shown, the front main shaft drive 4-2 drives the front auxiliary shaft drive 4-4 through the front gear pair 4-6. The front gear pair 4-6 includes a front main gear 4-61 and a front auxiliary gear 4-62, which are respectively mounted on the front main shaft 4-21 and the front auxiliary shaft 4-41, and mesh with each other. The rear main shaft drive 4-3 drives the rear auxiliary shaft drive 4-5 through the rear gear pair 4-7. The rear gear pair 4-7 includes a rear main gear 4-71 and a rear auxiliary gear 4-72, which are respectively mounted on the rear main shaft 4-31 and the rear auxiliary shaft 4-51, and mesh with each other. Furthermore, in this embodiment 1, the mounting positions of the front gear pair 4-6 and the rear gear pair 4-7 can be adjusted according to actual needs, preferably at the rear end of the frame.

[0024] In this field, the transmission speed ratio can be controlled by adjusting the transmission ratio of the front gear pair 4-6 and the rear gear pair 4-7. In this embodiment 1, the transmission speed ratio of both the front gear pair 4-6 and the rear gear pair 4-7 is 1:3, meaning that for every one revolution of the main shaft, the secondary shaft can rotate three times. Therefore, in this invention, the movement speed of the coiling device and the combing device can be flexibly adjusted by regulating the transmission ratio.

[0025] In this invention, the front gear pair 4-6 and the rear gear pair 4-7 can also be replaced by those skilled in the art with existing transmission components that can realize two-shaft transmission connection, such as sprocket transmission pair and synchronous pulley transmission pair, as needed.

[0026] like Figure 3 As shown, the front spindle drive unit 4-2 includes a front spindle 4-21, a front sinking cam 4-22, and a front needle bed cam 4-23. The front spindle 4-21 is rotatably mounted on the frame 1. The front sinking cam 4-22 and the front needle bed cam 4-23 are both mounted on the front spindle 4-21. The front sinking cam 4-22 is connected to the cam arm 2-11 of the front sinking mechanism 2-1, and the front needle bed cam 4-23 is connected to the cam arm 2 of the front needle bed mechanism 2-3.

[0027] like Figure 3 As shown, the rear main shaft drive component 4-3 includes a rear main shaft 4-31, a rear sinking cam 4-32, and a rear needle bed cam 4-33. The rear main shaft 4-31 is rotatably mounted on the frame 1. The rear sinking cam 4-32 and the rear needle bed cam 4-33 are both mounted on the rear main shaft 4-31. The rear sinking cam 4-32 is connected to the cam swing arm of the rear sinking mechanism 2-2, and the rear needle bed cam 4-33 is connected to the cam swing arm of the rear needle bed mechanism 2-4.

[0028] like Figure 2 As shown, a front pulley 4-24 is installed at one end of the front main shaft 4-21, and a rear pulley 4-34 is installed at one end of the rear main shaft 4-31. The front pulley 4-24 and the rear pulley 4-34 are connected by a first synchronous belt 4-8. One end of the front main shaft 4-21 or the rear main shaft 4-31 is connected to the power output end of the power drive component 4-1.

[0029] In this invention, the front pulley 4-24 and the rear pulley 4-34, which drive the reciprocating motion of the coiling mechanism, rotate in the same direction (either clockwise or counterclockwise simultaneously). Compared to the traditional synchronous pulleys that rotate in opposite directions (one clockwise and one counterclockwise), this method offers higher transmission efficiency and faster speed. This is because the engagement between the synchronous belt and the synchronous pulley is smoother and friction is lower when rotating in the same direction, thus reducing energy loss.

[0030] To prevent slippage of the first synchronous belt, improve transmission efficiency, and maintain product conveying stability, in this embodiment 1, several pressure rollers 4-81 are also provided on both outer sides of the first synchronous belt 4-8, and the pressure rollers 4-81 are in close contact with the outer side of the first synchronous belt 4-8. The pressure rollers apply tension to the first synchronous belt 4-8 through friction, ensuring that the first synchronous belt 4-8 will not slip due to insufficient tension during transmission, thereby maintaining the stability and accuracy of transmission. At the same time, under the action of the pressure rollers 4-81, the first synchronous belt 4-8 can better fit the front and rear pulleys, reducing energy loss caused by gaps or looseness, thereby improving transmission efficiency. In this embodiment 1, the tension of the first synchronous belt 4-8 can also be effectively adjusted by adjusting the pressure rollers, ensuring that it maintains appropriate tension during transmission, which helps to extend the service life of the synchronous belt and reduce failures caused by improper tension.

[0031] like Figure 3 As shown, the front subshaft drive component 4-4 includes a front subshaft 4-41 and a front cradle eccentric wheel 4-42. The front subshaft 4-41 is rotatably mounted on the frame 1, and the front cradle eccentric wheel 4-42 is mounted on the front subshaft 4-41. The front cradle eccentric wheel 4-42 is connected to the connecting end of the front cradle mechanism 3-1. The front subshaft 4-41 is connected to the front main shaft 4-21 through the front gear pair 4-41. like Figure 3 As shown, the rear subshaft drive component 4-5 includes a rear subshaft 4-51 and a rear sway arm eccentric wheel 4-52. The rear subshaft 4-51 is rotatably mounted on the frame 1, and the rear sway arm eccentric wheel 4-52 is mounted on the rear subshaft 4-51. The rear sway arm eccentric wheel 4-52 is connected to the connecting end of the rear sway arm mechanism 3-2. The rear subshaft 4-51 is connected to the rear main shaft 4-31 through the rear gear pair 4-7.

[0032] like Figure 2 As shown, the power drive component 4-1 includes a drive motor 4-11, a main drive wheel 4-12, and an auxiliary drive wheel 4-13. The drive motor 4-11 is mounted on one side of the frame 1, and the output end of the drive motor 4-11 is drivenly connected to the main drive wheel 4-12. The auxiliary drive wheel 4-13 is coaxially mounted with the front main axle drive component 4-2 or the rear main axle drive component 4-3. The main drive wheel 4-12 and the auxiliary drive wheel 4-13 are connected by a second synchronous belt 4-9.

[0033] like Figure 5 As shown, the front rocker mechanism 3-1 includes a front rocker connecting rod 3-11, a front comb rocker assembly 3-12, a front rocker bracket 3-13, and a front eccentric wheel connecting rod 3-14. The top end of the front rocker connecting rod 3-11 is connected to one end of the front comb rocker assembly 3-12. The bottom end of the front rocker connecting rod 3-11 and the front eccentric wheel connecting rod 3-14 are movably connected to the connecting end of the front rocker bracket 3-13. The front eccentric wheel connecting rod 3-14 is mounted on the outer contour of the front rocker eccentric wheel through a bearing. The front rocker bracket is rotatably connected to the frame.

[0034] The specific structure of the rear rocker mechanism 3-2 is the same as that of the front rocker mechanism 3-1, and its installation method is also the same as that of the front rocker mechanism 3-1, ensuring that the movement of the front rocker mechanism 3-1 and the rear rocker mechanism 3-2 is consistent.

[0035] In this invention, the contour lines of the front carriage sinking cam 4-22, the front carriage needle bed cam 4-23, the rear carriage sinking cam 4-32, and the rear carriage needle bed cam 4-33 are designed according to the motion paths of the front carriage sinking mechanism 2-1, the front carriage needle bed mechanism 2-3, the rear carriage sinking mechanism 2-2, and the rear carriage needle bed mechanism 2-4, respectively.

[0036] In this invention, the eccentric design of the front cradle eccentric wheel 4-42 and the rear cradle eccentric wheel 4-52 is based on the swing path design of the front comb cradle assembly 3-12 and the rear comb cradle assembly, respectively.

[0037] In this invention, the front pulley 4-24, the rear pulley 4-34, and the first synchronous belt 4-8 cooperate to form a synchronous transmission assembly. The main drive wheel 4-12, the auxiliary drive wheel 4-13, and the second synchronous belt 4-9 cooperate to form another synchronous transmission assembly. These components can also be replaced by existing transmission assemblies capable of synchronous transmission between two shafts, such as sprocket drives or gear drives, as required, by those skilled in the art. Furthermore, the number of wheels (pulleys, gears, sprockets, etc.) used for transmission can be set according to actual needs, which is a conventional technical approach.

[0038] In this embodiment 1, the working principle of the reciprocating motion of the coiling device and the combing device is as follows: The drive motor 4-11 operates, driving the auxiliary drive wheel 4-13 mounted on the front main shaft 4-21 via the main drive wheel 4-12 and the second synchronous belt pulley 4-9. The front main shaft 4-21 rotates accordingly, driving the front pulley 4-24 to rotate, which in turn drives the rear pulley 4-34 via the first synchronous belt 4-8. The rear pulley 4-34 then drives the rear main shaft 4-31 to rotate. Simultaneously, the front main shaft 4-21 drives the front auxiliary shaft 4-41 via the front gear pair 4-6, and the rear main shaft 4-31 drives the rear auxiliary shaft 4-51 via the rear gear pair 4-7.

[0039] The rotation of the front main shaft 4-21 can simultaneously drive the rotation of the front sinking cam 4-22 and the front needle bed cam 4-23. The front sinking cam 4-22 drives the front sinking mechanism 2-1 to reciprocate through the cam swing arm, and the front needle bed cam 4-23 drives the front needle bed mechanism 2-3 to reciprocate through the cam swing arm.

[0040] The rotation of the rear main shaft 4-31 can simultaneously drive the rear sinking cam 4-32 and the rear needle bed cam 4-33 to rotate. The rear sinking cam 4-32 drives the rear sinking mechanism 2-2 to reciprocate through the cam swing arm, and the rear needle bed cam 4-33 drives the rear needle bed mechanism 2-4 to reciprocate through the cam swing arm.

[0041] The rotation of the front subshaft 4-41 drives the eccentric wheel 4-42 of the front cradle to rotate, which in turn drives the front cradle connecting rod 3-11 to reciprocate through the front eccentric wheel connecting rod 3-14 and the front cradle bracket 3-13. This, in turn, causes the front comb cradle assembly 3-12 to reciprocate around the cradle's rotation center. The working principle of the rear cradle mechanism 3-2 is the same as that of the front cradle mechanism 3-1.

[0042] The above description is merely an illustration of the present invention and represents a preferred embodiment. It should be noted that those skilled in the art can make various improvements and modifications without departing from the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A high-speed double-needle bed warp knitting machine, comprising a frame, a loop-forming device, a guide bar device, and a reciprocating drive device, wherein, The forming device includes a front carriage settling mechanism, a rear carriage settling mechanism, a front carriage needle bed mechanism, and a rear carriage needle bed mechanism, characterized in that, The combing device includes several front rocker mechanisms and several rear rocker mechanisms. The several front rocker mechanisms and several rear rocker mechanisms are relatively spaced and installed on the frame. The front rocker mechanisms and several rear rocker mechanisms all reciprocate around the rocker rotation center. The reciprocating drive device includes a power drive component, a front main shaft drive component, a rear main shaft drive component, a front auxiliary shaft drive component, and a rear auxiliary shaft drive component. The power drive component provides power for the reciprocating motion of the front main shaft drive component, the rear main shaft drive component, the front auxiliary shaft drive component, and the rear auxiliary shaft drive component. The front main shaft drive component drives the front sinking mechanism and the front needle bed mechanism to perform circular reciprocating motion, respectively. The rear main shaft drive component drives the rear sinking mechanism and the rear needle bed mechanism to perform reciprocating motion, respectively. The front auxiliary shaft drive component drives the front cradle mechanism to reciprocate around the cradle rotation center, and the rear auxiliary shaft drive component drives the front cradle mechanism to reciprocate around the cradle rotation center.

2. The high-speed double needle bed warp knitting machine according to claim 1, characterized in that, The front main shaft drive, rear main shaft drive, front auxiliary shaft drive, and rear auxiliary shaft drive are all mounted on the frame. The front main shaft drive is connected to the front auxiliary shaft drive, and the rear main shaft drive is connected to the rear auxiliary shaft drive. The power drive synchronously drives the front main shaft drive and the rear main shaft drive.

3. A high-speed double-needle bed warp knitting machine according to claim 1 or 2, characterized in that, The front main shaft drive unit includes a front main shaft, a front sinking cam, and a front needle bed cam. The front main shaft is rotatably mounted on the frame. The front sinking cam and the front needle bed cam are both mounted on the front main shaft. The front sinking cam is connected to the cam swing arm of the front sinking mechanism, and the front needle bed cam is connected to the cam swing arm of the front needle bed mechanism. The rear main shaft drive unit includes a rear main shaft, a rear sinking cam, and a rear needle bed cam. The rear main shaft is rotatably mounted on the frame. The rear sinking cam and the rear needle bed cam are both mounted on the rear main shaft. The rear sinking cam is connected to the cam swing arm of the rear sinking mechanism, and the rear needle bed cam is connected to the cam swing arm of the rear needle bed mechanism. A front pulley is installed at one end of the front axle, and a rear pulley is installed at one end of the rear axle. The front pulley and the rear pulley are connected by a first synchronous belt. One end of the front axle or the rear axle is connected to the power output end of the power drive component.

4. A high-speed double-needle bed warp knitting machine according to claim 3, characterized in that, The front subshaft drive unit includes a front subshaft and a front cradle eccentric wheel. The front subshaft is rotatably mounted on the frame, and the front cradle eccentric wheel is mounted on the front subshaft. The front cradle eccentric wheel is connected to the connecting end of the front cradle mechanism. The front subshaft is connected to the front main shaft through a front gear pair. The rear subshaft drive unit includes a rear subshaft and a rear cradle eccentric wheel. The rear subshaft is rotatably mounted on the frame, and the rear cradle eccentric wheel is mounted on the rear subshaft. The rear cradle eccentric wheel is connected to the connecting end of the rear cradle mechanism. The rear subshaft is connected to the rear main shaft through a rear gear pair.

5. A high-speed double-needle bed warp knitting machine according to claim 4, characterized in that, The front main shaft drive unit drives the front auxiliary shaft drive unit through the front gear pair. The front gear pair includes the front main gear and the front auxiliary gear. The front main gear and the front auxiliary gear are respectively mounted on the front main shaft and the front auxiliary shaft, and the two mesh with each other. The rear main shaft drive unit drives the rear auxiliary shaft drive unit through the rear gear pair. The rear gear pair includes the rear main gear and the rear auxiliary gear. The rear main gear and the rear auxiliary gear are respectively mounted on the rear main shaft and the rear auxiliary shaft, and the two mesh with each other.

6. A high-speed double needle bed warp knitting machine according to any one of claims 1-5, characterized in that, The power drive unit includes a drive motor, a main drive wheel, and a secondary drive wheel. The drive motor is mounted on one side of the frame, and its output end is connected to the main drive wheel. The secondary drive wheel is coaxially mounted with either the front or rear axle drive unit. The main drive wheel and the secondary drive wheel are connected by a second synchronous belt.

7. A high-speed double-needle bed warp knitting machine according to claim 3, characterized in that, Several pressure rollers are also provided on both outer sides of the first synchronous belt, and the pressure rollers are in close contact with the outer side of the first synchronous belt.

8. A high-speed double-needle bed warp knitting machine according to claim 3, characterized in that, The front rocker mechanism includes a front rocker connecting rod, a front comb rocker assembly, a front rocker bracket, and a front eccentric wheel connecting rod. The top end of the front rocker connecting rod is connected to one end of the front comb rocker assembly. The bottom end of the front rocker connecting rod and the front eccentric wheel connecting rod are movably connected to the connecting end of the front rocker bracket. The front eccentric wheel connecting rod is mounted on the outer contour of the front rocker eccentric wheel via a bearing. The front rocker bracket is rotatably connected to the frame.

9. A high-speed double needle bed warp knitting machine according to claim 8, characterized in that, The structure of the rear cradle mechanism is the same as that of the front cradle mechanism.

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