High-speed transmission structure of a warp knitting machine cradle
By adopting a conjugate cam design on the cradle of the warp knitting machine, the rotational motion of the cradle is decomposed into a combined rotational motion, which solves the problem of unstable operation of the equipment and improves the speed and stability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU LONGXUAN INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-14
AI Technical Summary
The motion trajectories of the upper and lower swing transmission mechanisms of the comb cradle in traditional double needle bed warp knitting machines cannot achieve high-low complementarity, resulting in unstable equipment operation and affecting the equipment's operating speed and load balance.
The design employs a front swing cam and a rear swing cam as conjugate cams, with complementary motion trajectories. The left and right swing of the cradle is controlled by the cooperation of the front swing transmission device and the rear swing transmission device, realizing the decomposition of rotational motion into rotational combination motion, reducing inertia, and achieving dynamic balance and load balance in equipment operation.
It improves the operating speed and stability of the equipment, ensures dynamic balance and load balancing when the equipment is running at high speed, and enhances the operational stability of the equipment.
Smart Images
Figure CN224494510U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of warp knitting machine technology, specifically to a high-speed transmission structure for a warp knitting machine cradle. Background Technology
[0002] A traditional double-needle bed warp knitting machine, such as the one authorized by CN210002032U, includes a frame, a loop-forming device, a guide bar device, and a transmission device. The loop-forming device includes symmetrical front / rear loop-breaking sections, symmetrical front / rear needle bed sections, and symmetrical front / rear sinking sections. The transmission device includes symmetrically arranged front / rear needle bed transmission mechanisms, symmetrically arranged front / rear sinking transmission mechanisms, a guide bar cradle upper swing transmission mechanism, and a guide bar cradle lower swing transmission mechanism. The guide bar device includes a guide bar cradle and guide bars. The guide bars are mounted on the guide bar cradle, and a connecting arm is fixed to the top axis. The guide bar cradle is hinged to the lower end of the arm, and the upper end of the arm is fixedly mounted to the top axis. The top axis is hinged to the crossbeam of the frame. The top shaft, comb cradle, comb, upper swing transmission mechanism of the comb cradle, and lower swing transmission mechanism of the comb cradle constitute the comb swing mechanism. Among them, the lower swing transmission mechanism of the comb cradle can drive the comb cradle to swing at high speed around the lower end of the boom, and the upper swing transmission mechanism of the comb cradle drives the top shaft to swing on the crossbeam, thereby causing the comb cradle to swing at low speed with the top shaft. However, the cams on the upper swing transmission mechanism of the comb cradle and the cams on the lower swing transmission mechanism of the comb cradle are not conjugate cams, and their motion trajectories cannot achieve high-low complementarity. As a result, when superimposed, it is impossible to effectively achieve dynamic balance and load balance of the equipment operation, which is not conducive to improving the equipment operating speed and will have a certain impact on the stability of the equipment operation. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a high-speed transmission structure for the cradle of a warp knitting machine that has a stable and reliable overall structure, can effectively achieve dynamic balance of equipment operation when stacked, and has a balanced load, so that the equipment can operate faster and more smoothly.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a high-speed transmission structure for a warp knitting machine cradle, including a cradle, a cradle arm, a front swing cam, a rear swing cam, a front swing transmission device, and a rear swing transmission device. The upper end of the cradle arm is hinged to the crossbeam of the warp knitting machine and the lower end is hinged to the cradle. The front swing cam is connected to the cradle arm through the front swing transmission device and is used to drive the cradle arm to swing left and right. The rear swing cam is connected to the cradle through the rear swing transmission device and is used to drive the cradle to swing left and right. The front swing cam and the rear swing cam are conjugate cams and their motion trajectories are complementary in height.
[0005] Furthermore, the upper end of the cradle arm is fixedly connected to the top axis, which is rotatably mounted on the crossbeam of the warp knitting machine via a bearing seat.
[0006] Furthermore, the front swing transmission device includes a front swing roller frame, a front swing lower connecting rod, a front swing upper connecting rod, a front swing lower swing arm, and a front swing upper swing arm. A front swing annular flange is fixedly provided on the front swing cam. One end of the front swing roller frame is hinged to the front swing mounting seat, which is fixedly installed on the frame of the warp knitting machine. The other end of the front swing roller frame is provided with a rotatable front swing upper roller and a front swing lower roller. The front swing annular flange is sandwiched between the front swing upper roller and the front swing lower roller. One end of the front swing lower connecting rod is hinged to the front swing roller frame, and one end of the front swing lower connecting rod is hinged to the front swing lower swing arm. One end of the front swing lower swing arm is rotatably installed on the frame via the front swing shaft. One end of the front swing upper connecting rod is hinged to the front swing lower swing arm, and the other end is hinged to one end of the front swing upper swing arm. The other end of the front swing upper swing arm is fixedly installed on the top shaft.
[0007] Furthermore, the rear swing transmission device includes a rear swing roller frame, a rear swing lower connecting rod, a rear swing upper connecting rod, a rear swing main arm, and a rear swing auxiliary arm. A rear swing annular flange is fixedly provided on the rear swing cam. One end of the rear swing roller frame is hinged to the rear swing mounting seat, which is fixedly installed on the frame. The other end of the rear swing roller frame is provided with a rotatable rear swing upper roller and a rear swing lower roller. The rear swing annular flange is sandwiched between the rear swing upper roller and the rear swing lower roller. One end of the rear swing lower connecting rod is hinged to the front swing roller frame, and one end of the rear swing lower connecting rod is hinged to the rear swing main arm. One end of both the rear swing main arm and the rear swing auxiliary arm is fixedly provided on the rear swing shaft. The rear swing shaft is rotatably connected to the frame. The rear swing auxiliary arm is hinged to one end of the rear swing upper connecting rod, and one end of the rear swing upper connecting rod is hinged to one end of the cradle.
[0008] Furthermore, the lower front swing link, the upper front swing link, the lower rear swing link, and the upper rear swing link are all telescopic rods with adjustable lengths.
[0009] Furthermore, the front swing cam and the rear swing cam rotate in the same direction.
[0010] Furthermore, both the front and rear swing cams are triangular cams.
[0011] Furthermore, the front swing cam is fixedly mounted on the front swing drive shaft, and the rear swing cam is fixedly mounted on the rear swing drive shaft.
[0012] Furthermore, the front swing transmission device and the rear swing transmission device are respectively located on the left and right sides of the cradle, and the swing direction of the cradle arm is the same as the swing direction of the cradle.
[0013] As described above, the high-speed transmission structure of the warp knitting machine cradle provided by this utility model has the following beneficial effects: By cooperating and controlling the front swing cam, the front swing transmission device, the rear swing cam, and the rear swing transmission device, a rotational motion can be decomposed into a combined rotational motion. While ensuring that the cradle reaches the corresponding swing amplitude, the amplitude controlled by the front swing cam and the amplitude controlled by the rear swing cam are superimposed, which can effectively reduce the swing amplitude controlled by a single cam, thereby reducing the inertia generated by the equipment during high-speed operation and facilitating the increase of equipment speed. By setting the front swing cam and the rear swing cam as conjugate cams and their motion trajectories being complementary in height, when the front swing cam moves to the high point, the rear swing cam moves to the low point, and when the front swing cam moves to the low point, the rear swing cam moves to the high point. The front swing cam and the rear swing cam move in the same direction. When superimposed, the dynamic balance of the equipment operation can be effectively achieved, and the load is balanced, which can make the equipment operate faster and more smoothly. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of a high-speed transmission structure for a warp knitting machine cradle according to the present invention.
[0015] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.
[0016] In the diagram: 1-Cyclist; 2-Cyclist arm; 3-Front swing cam; 31-Front swing annular flange; 4-Rear swing cam; 41-Rear swing annular flange; 5-Front swing transmission device; 51-Front swing roller frame; 52-Lower front swing connecting rod; 53-Upper front swing connecting rod; 54-Lower front swing arm; 55-Upper front swing arm; 56-Front swing mounting base; 57-Upper front swing roller; 58-Lower front swing roller; 59- 6-Front swing shaft; 6-Rear swing transmission device; 61-Rear swing roller frame; 62-Rear swing lower connecting rod; 63-Rear swing upper connecting rod; 64-Rear swing main arm; 65-Rear swing auxiliary arm; 66-Rear swing mounting seat; 67-Rear swing upper roller; 68-Rear swing lower roller; 69-Rear swing shaft; 7-Head shaft; 71-Bearing with seat; 81-Crossbeam; 82-Frame; 91-Front swing drive shaft; 92-Rear swing drive shaft. Detailed Implementation
[0017] The present invention will be further described below through specific embodiments.
[0018] like Figure 1 and Figure 2As shown, the high-speed transmission structure of a warp knitting machine cradle according to this utility model includes a cradle 1, a cradle arm 2, a front swing cam 3, a rear swing cam 4, a front swing transmission device 5, and a rear swing transmission device 6. The upper end of the cradle arm 2 is hinged to the warp knitting machine crossbeam 81, and the lower end is hinged to the cradle 1. Correspondingly, a guide bar is installed on the cradle 1. The front swing cam 3 is connected to the cradle arm 2 through the front swing transmission device 5 and is used to drive the cradle arm 2 to swing left and right, that is, through the front swing cam 6. The rotational motion of wheel 3 can be converted into the swinging motion of the rocker arm 2 around the hinge point between the rocker arm 2 and the crossbeam 81. The rear swing cam 4 is connected to the rocker 1 through the rear swing transmission device 6 and is used to drive the rocker 1 to swing left and right. That is, the rotational motion of the rear swing cam 4 can be converted into the swinging motion of the rocker 1 around the hinge point between the rocker 1 and the rocker arm 2. The front swing cam 3 and the rear swing cam 4 are conjugate cams and their motion trajectories are complementary in height.
[0019] Preferably, the front swing cam 3 and the rear swing cam 4 rotate in the same direction, that is, the front swing cam 3 and the rear swing cam 4 move in the same direction.
[0020] By coordinating the front swing cam 3, the front swing transmission device 5, the rear swing cam 4, and the rear swing transmission device 6, a rotational motion can be broken down into a combined rotational motion. While ensuring the rocker arm 1 reaches the corresponding swing amplitude, the superposition of the swing amplitudes controlled by the front swing cam 3 and the rear swing cam 4 effectively reduces the swing amplitude controlled by a single cam, thereby reducing the inertia generated during high-speed operation and facilitating faster equipment speed. By setting the front swing cam 3 and the rear swing cam 4 as conjugate cams with complementary high and low motion trajectories, when the front swing cam 3 reaches its high point, the rear swing cam 4 reaches its low point, and vice versa. The front swing cam 3 and the rear swing cam 4 move in the same direction, and this superimposed operation effectively achieves dynamic balance and load balance in the equipment, resulting in faster and more stable operation.
[0021] The upper end of the rocker arm 2 is fixedly connected to the top shaft 7. The top shaft 7 is rotatably mounted on the crossbeam 81 of the warp knitting machine through a bearing 71, thereby realizing the hinge connection between the rocker arm 2 and the crossbeam 81.
[0022] The front swing transmission device 5 includes a front swing roller frame 51, a front swing lower connecting rod 52, a front swing upper connecting rod 53, a front swing lower swing arm 54, and a front swing upper swing arm 55. A front swing annular flange 31 is fixedly provided on the front swing cam 3. One end of the front swing roller frame 51 is hinged to the front swing mounting seat 56, which is fixedly mounted on the frame 82 of the warp knitting machine. The other end of the front swing roller frame 51 is provided with a rotatable front swing upper roller and a front swing lower roller 58. The front swing annular flange 31 is sandwiched between the front swing upper roller 57 and the front swing lower roller 58. Correspondingly, the front swing upper roller... 57 is located on the outer side of the front swing annular flange 31, the front swing lower roller 58 is located on the inner side of the front swing annular flange 31, one end of the front swing lower connecting rod 52 is hinged to the front swing roller frame 51, one end of the front swing lower connecting rod 52 is hinged to the front swing lower swing arm 54, one end of the front swing lower swing arm 54 is rotatably mounted on the frame 82 through the front swing shaft 59, one end of the front swing upper connecting rod 53 is hinged to the front swing lower swing arm 54 and the other end is hinged to one end of the front swing upper swing arm 55, and the other end of the front swing upper swing arm 55 is fixedly mounted on the top shaft 7.
[0023] The rear swing transmission device 6 includes a rear swing roller frame 61, a rear swing lower connecting rod 62, a rear swing upper connecting rod 63, a rear swing main arm 64, and a rear swing auxiliary arm 65. A rear swing annular flange 41 is fixedly provided on the rear swing cam 4. One end of the rear swing roller frame 61 is hinged to the rear swing mounting seat 66, which is fixedly mounted on the frame 82. The other end of the rear swing roller frame 61 is provided with a rotatable rear swing upper roller 67 and a rear swing lower roller 68. The rear swing annular flange 41 is sandwiched between the rear swing upper roller 67 and the rear swing lower roller 68. 7 is located on the outer side of the rear swing annular flange 41, the rear swing lower roller 68 is located on the inner side of the rear swing annular flange 41, one end of the rear swing lower connecting rod 62 is hinged to the front swing roller frame 51, one end of the rear swing lower connecting rod 62 is hinged to the rear swing main arm 64, one end of the rear swing main arm 64 and one end of the rear swing auxiliary arm 65 are both fixed on the rear swing shaft 69, the rear swing shaft 69 is rotatably connected to the frame 82, the rear swing auxiliary arm 65 is hinged to one end of the rear swing upper connecting rod 63, and one end of the rear swing upper connecting rod 63 is hinged to one end of the rocker arm 1.
[0024] The lower front swing link 52, the upper front swing link 53, the lower rear swing link 62, and the upper rear swing link 63 are all telescopic rods with adjustable lengths. Correspondingly, each telescopic rod includes a middle rod body and a hinged rod body. The hinged rod body is provided on both sides of the middle rod body. Threaded holes are provided at both ends of the middle rod body. External threads are provided on the outer circumferential surface of the hinged rod body and are threaded into the threaded holes of the middle rod body through the external threads. A locking nut is also threaded onto the hinged rod body. By adjusting the screw depth of the hinged rod body into the threaded holes of the middle rod body, the overall length of the telescopic rod can be easily adjusted.
[0025] Both the front swing cam 3 and the rear swing cam 4 are triangular cams. As a result, the front swing cam 3 can drive the front swing transmission device 5 to move up and down three times in one rotation cycle, and the rear swing cam 4 can drive the rear swing transmission device 6 to move up and down three times in one rotation cycle, which can further improve the operating speed of the equipment.
[0026] The front swing cam 3 is fixedly mounted on the front swing drive shaft 91, meaning that the front swing cam 3 is powered by the front swing drive shaft 91 to rotate continuously. The rear swing cam 4 is fixedly mounted on the rear swing drive shaft 92, meaning that the rear swing cam 4 is powered by the rear swing drive shaft 92 to rotate continuously. The front swing drive shaft 91 and the rear swing drive shaft 92 are driven to rotate by corresponding drive devices, which can adopt the structure in the prior art, so they will not be described in detail here.
[0027] The front swing transmission device 5 and the rear swing transmission device 6 are respectively located on the left and right sides of the rocker arm 1. The swing direction of the rocker arm 2 is the same as the swing direction of the rocker arm 1, so as to achieve the superposition and increase of the swing amplitude of the rocker arm 1.
[0028] The above are only some specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.
Claims
1. A high-speed transmission structure for a warp knitting machine cradle, characterized in that: The device includes a cradle, a cradle arm, a front swing cam, a rear swing cam, a front swing transmission device, and a rear swing transmission device. The upper end of the cradle arm is hinged to the crossbeam of the warp knitting machine, and the lower end is hinged to the cradle. The front swing cam is connected to the cradle arm via the front swing transmission device and is used to drive the cradle arm to swing left and right. The rear swing cam is connected to the cradle via the rear swing transmission device and is used to drive the cradle to swing left and right. The front swing cam and the rear swing cam are conjugate cams, and their motion trajectories are complementary in height.
2. The high-speed transmission structure of a warp knitting machine cradle according to claim 1, characterized in that: The upper end of the rocker arm is fixedly connected to the top axis, which is rotatably mounted on the crossbeam of the warp knitting machine via a bearing seat.
3. The high-speed transmission structure of a warp knitting machine cradle according to claim 2, characterized in that: The front swing transmission device includes a front swing roller frame, a front swing lower connecting rod, a front swing upper connecting rod, a front swing lower swing arm, and a front swing upper swing arm. A front swing annular flange is fixedly provided on the front swing cam. One end of the front swing roller frame is hinged to the front swing mounting seat. The front swing mounting seat is fixedly installed on the frame of the warp knitting machine. The other end of the front swing roller frame is provided with a rotatable front swing upper roller and a front swing lower roller. The front swing annular flange is sandwiched between the front swing upper roller and the front swing lower roller. One end of the front swing lower connecting rod is hinged to the front swing roller frame. One end of the front swing lower connecting rod is hinged to the front swing lower swing arm. One end of the front swing lower swing arm is rotatably installed on the frame through the front swing shaft. One end of the front swing upper connecting rod is hinged to the front swing lower swing arm, and the other end is hinged to one end of the front swing upper swing arm. The other end of the front swing upper swing arm is fixedly installed on the top shaft.
4. The high-speed transmission structure of a warp knitting machine cradle according to claim 3, characterized in that: The rear swing transmission device includes a rear swing roller frame, a rear swing lower connecting rod, a rear swing upper connecting rod, a rear swing main arm, and a rear swing auxiliary arm. A rear swing annular flange is fixedly provided on the rear swing cam. One end of the rear swing roller frame is hinged to the rear swing mounting seat, which is fixedly installed on the frame. The other end of the rear swing roller frame is provided with a rotatable rear swing upper roller and a rear swing lower roller. The rear swing annular flange is sandwiched between the rear swing upper roller and the rear swing lower roller. One end of the rear swing lower connecting rod is hinged to the front swing roller frame, and one end of the rear swing lower connecting rod is hinged to the rear swing main arm. One end of the rear swing main arm and one end of the rear swing auxiliary arm are both fixedly provided on the rear swing shaft. The rear swing shaft is rotatably connected to the frame. The rear swing auxiliary arm is hinged to one end of the rear swing upper connecting rod, and one end of the rear swing upper connecting rod is hinged to one end of the rocker arm.
5. The high-speed transmission structure of a warp knitting machine cradle according to claim 4, characterized in that: The lower front swing link, the upper front swing link, the lower rear swing link, and the upper rear swing link are all telescopic rods with adjustable lengths.
6. The high-speed transmission structure of a warp knitting machine cradle according to claim 1, characterized in that: The front swing cam and the rear swing cam rotate in the same direction.
7. The high-speed transmission structure of a warp knitting machine cradle according to claim 1, characterized in that: Both the front swing cam and the rear swing cam are triangular cams.
8. The high-speed transmission structure of a warp knitting machine cradle according to claim 1, characterized in that: The front swing cam is fixedly mounted on the front swing drive shaft, and the rear swing cam is fixedly mounted on the rear swing drive shaft.
9. The high-speed transmission structure of a warp knitting machine cradle according to claim 1, characterized in that: The front swing transmission device and the rear swing transmission device are respectively located on the left and right sides of the rocker arm, and the swing direction of the rocker arm is the same as the swing direction of the rocker arm.