Laser cutting device for external creel of multi-strand doubling machine
By using the design of laser cutting device in the yarn yarn transfer machine, using the motor to drive thread columns and sliders, push rods, elastic components and other structures, the problem of roller slippage during crossbar cutting is solved, and more efficient crossbar cutting and Welding effect.
Patent Information
- Application Number
- CN202411353648.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2044-09-26
AI Technical Summary
When cutting, the existing multi-strand yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn yarn
Using laser cutting device, through the structure of placing seats, sliding frames, cutting guns, moving mechanisms, lifting devices, fixing components, pressure components and clamping components, the motor drives the threaded column to drive the slider and push rod, combining elastic components and springs , realize stable drag and fixation of the crossbar, reduce friction errors, and ensure cutting accuracy and welding effect.
By increasing friction and clamping force, avoiding roller slippage, improving cutting accuracy and welding effect, ensuring consistency in crossbar length and improving the overall performance of the equipment.
Smart Images
Figure CN118848298B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of laser cutting, in particular to a laser cutting device for an external yarn frame of a yarn doubling machine. Background Art
[0002] A doubling machine is a textile equipment used to combine two or more yarns into one yarn. Its main function is to improve the quality and performance of the yarn, make the yarn more uniform and smooth, reduce the hairiness and breakage of the yarn, and also change the twist and winding shape of the yarn.
[0003] The patent application with application number CN202311509866.0 discloses a plate laser cutting device, including a frame, on which a cutting assembly is installed through a movable bracket, and a support mechanism is also provided on the frame, the support mechanism including a support unit, a first drive assembly and a second drive assembly, there are multiple groups of support units, each group of support units is arranged in parallel and spaced apart along the length direction of the frame, the support unit includes a cylinder and a support bar, the cylinder is provided with a guide groove, the support bar moves along the radial direction of the cylinder and extends along the guide groove, the first drive assembly drives the support bar to extend and retract relative to the cylinder, the second drive assembly drives each support unit to rotate around its axial direction, the support bars on adjacent support units are staggered during the rotation process, and the teeth at the tooth ends of the staggered rotating support bars on adjacent support units are staggered, which prevents the debris from affecting the flatness of the plate during the cutting operation and ensures the accuracy of plate cutting.
[0004] When producing a multi-strand yarn-doubling machine's external yarn frame, it is necessary to cut the crossbar of the yarn frame, and cut the longer crossbar into multiple crossbars of the same length. However, when cutting, the existing equipment basically uses the driving wheel to move the long rod at the bottom of the cutting device, and the rolling of the roller is prone to slipping, which causes the crossbars after cutting to be easily of different lengths, resulting in poor cutting effect. Summary of the invention
[0005] The object of the present invention is to provide a laser cutting device for an external yarn frame of a doubling machine for multiple strands of doubling yarn, so as to solve the problems raised in the above-mentioned background technology.
[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a laser cutting device for an external yarn frame of a yarn doubling machine, comprising a placement seat 1, both ends of the placement seat 1 are fixedly connected to a hollow plate, the inner wall of the hollow plate is rotatably connected to a threaded column through a bearing, the outer wall of the hollow plate is fixedly connected to a motor, the output end of the motor is fixedly connected to the hollow plate, the outer wall of the placement seat 1 is fixedly connected to a sliding frame, the bottom of the sliding frame is movably connected to a cutting gun, the cutting gun is driven to move by the sliding frame to cut the cross bar, the placement seat 1 is fixedly connected to a placement seat 2 on one side close to the sliding frame, a notch 1 is provided between the placement seat 1 and the placement seat 2, a notch 2 is provided on the top of the placement seat 2, the inner wall of the notch 2 is fixedly connected to a fixing component, and also includes:
[0007] The moving mechanism includes a slider movably connected to the inner wall of the hollow plate, the inner wall of the slider is threadedly connected to the threaded column, the threaded column is driven to rotate by a motor and then the slider is driven to move, and the moving slider will drive the moving mechanism to move as a whole, the inner wall at the top of the slider is fixedly connected to a push rod, the top of the push rod is fixedly connected to an annular plate 1, the inner wall of the annular plate 1 is fixedly connected to a pressure assembly, and the bottom of the annular plate 1 is fixedly connected to a partition 1.
[0008] According to the above technical solution, a lifting device is fixedly connected to the top of the placement seat one, and a platform is fixedly connected to the top of the lifting device. The inner wall of the placement seat one is rotatably connected to roller one through a bearing, and the outer wall of roller one is movably connected to the platform. When the equipment moves the cross bar, the lifting component will lower the platform so that roller one contacts the cross bar. This will reduce the friction at the bottom of the cross bar while ensuring the friction at the top of the cross bar, thereby avoiding dragging obstruction due to excessive friction. After the cross bar moves to the corresponding position, the lifting component will push up the platform again, so that the cross bar is affected by pressure from both the upper and lower ends, thereby improving the fixing effect, avoiding movement of the cross bar, and improving the welding effect.
[0009] According to the above technical solution, the fixing component includes an elastic component 1, the inner wall of the notch 2 is fixedly connected to the elastic component 1, the top of the elastic component 1 is fixedly connected to a fixing frame, the extended cross bar is fixed by pressing down the fixing frame, and the elastic component 1 is for facilitating the resetting of the fixing frame.
[0010] According to the above technical solution, the top of the hollow plate is movably connected to a sliding plate 1, the outer wall of the sliding plate 1 is fixedly connected to a force-bearing plate, the end of the sliding plate 1 away from the force-bearing plate is fixedly connected to a square plate, the outer wall of the square plate is rotatably connected to an elastic telescopic rod through a bearing, the end of the elastic telescopic rod away from the square plate is rotatably connected to a circular plate through a bearing, and the side of the circular plate away from the elastic telescopic rod is fixedly connected to a fixed frame, and when the sliding block moves forward a certain distance, it will push the force-bearing plate to move, and then the fixed frame is pressed down through the sliding plate 1 and the elastic telescopic rod to fix the cross bar.
[0011] According to the above technical scheme, the pressure assembly includes a side plate, the inner wall of the annular plate one is fixedly connected to the side plate, the side of the side plate away from the annular plate one is fixedly connected to the annular plate two, the inner wall of the annular plate two is movably connected to a sliding column one, the bottom of the sliding column one is fixedly connected to a clamping assembly, the outer wall of the sliding column one is sleeved with a spring one, the top of the spring one is fixedly connected to the annular plate two, the end of the spring one away from the annular plate two is fixedly connected to the clamping assembly, and the bottom of the side plate is fixedly connected to an extrusion plate, when the annular plate one drives the pressure assembly to move downward, because the elastic force of the spring one is greater than that of the spring two, the clamping assembly will be pushed to press down and fix the cross bar first, and after it is pressed down to a certain distance, the extrusion plate will be pressed down to clamp the cross bar left and right.
[0012] According to the above technical solution, the clamping assembly includes a connecting plate 1, the bottom of the sliding column 1 is fixedly connected to the connecting plate 1, the end of the spring 1 away from the annular plate 2 is fixedly connected to the connecting plate 1, the inner wall of the connecting plate 1 is movably connected with the sliding column 2, the bottom of the sliding column 2 is fixedly connected with the pressure plate, the top of the sliding column 2 is fixedly connected with the top plate, the outer wall of the sliding column 2 is sleeved with a spring 2, the top of the spring 2 is fixedly connected to the top plate, the end of the spring 2 away from the top plate is fixedly connected to the connecting plate 1, the bottom of the connecting plate 1 is fixedly connected with the partition plate 2, and the bottom of the connecting plate 1 is also fixedly connected to the connecting plate 2.
[0013] According to the above technical solution, the side of the connecting plate 2 close to the partition plate 2 is fixedly connected with the elastic component 2, the end of the elastic component 2 away from the connecting plate 2 is fixedly connected with the sliding plate 2, the outer wall of the sliding plate 2 is movably connected to the partition, the side of the sliding plate 2 close to the partition is fixedly connected with the connecting plate 3, both ends of the connecting plate 3 are rotatably connected with the roller 2 through bearings, the outer wall of the roller 2 is movably connected with the extrusion plate, and the end of the sliding plate 2 away from the elastic component 2 is fixedly connected with the friction plate.
[0014] Compared with the prior art, the beneficial effects achieved by the present invention are:
[0015] 1. The present invention sets a pressure component. When the cross bar needs to be cut, the cross bar needs to be dragged first, and the cross bar of the corresponding length is dragged to the front end of the cutting gun. Compared with the roller drive method, the dragging method can increase the friction, avoid the error caused by the roller slipping, and improve the cutting effect of the equipment.
[0016] 2. The present invention sets a clamping assembly. When the cross bar is pressed down and clamped, the lower pressure plate will first fix the cross bar, and then the friction plates on both sides will contact the cross bar. This can prevent the cross bar from moving when the friction plates on both sides contact the cross bar, ensure that the cross bar will not move when it is clamped again, and ensure the accuracy of the pushing distance. At the same time, when releasing the clamping, the friction plates on both sides are separated from the cross bar first to prevent the movement of the friction plates from affecting the position of the cross bar, thereby improving the welding effect of the equipment.
[0017] 3. The present invention sets a fixing component, and after the moving mechanism drags the cross bar to the corresponding position, the front side of the cross bar is fixed, so as to reduce the vibration caused by the equipment cutting the cross bar and changing the position of the cross bar, ensure that the position of the cross bar is not easily offset, and improve the welding effect of the equipment.
[0018] 4. The present invention sets a lifting device and a platform. When the equipment moves the cross bar, the lifting assembly will lower the platform so that the roller will contact the cross bar. In this way, while ensuring the friction at the top of the cross bar, the friction at the bottom of the cross bar is reduced to avoid dragging being blocked due to excessive friction. After the cross bar moves to the corresponding position, the lifting assembly will push up the platform so that the cross bar is affected by pressure from both the upper and lower ends, thereby improving the fixing effect, avoiding the movement of the cross bar, and improving the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0021] Figure 2 It is a schematic diagram of the bottom structure of the present invention;
[0022] Figure 3 is a schematic diagram of a fixing assembly of the present invention;
[0023] Figure 4 It is a schematic diagram of some parts of the fixing assembly of the present invention;
[0024] Figure 5 is a schematic diagram of the mobile mechanism of the present invention;
[0025] Figure 6 is a schematic diagram of a pressure assembly of the present invention;
[0026] Figure 7 is a schematic diagram of a clamping assembly of the present invention;
[0027] Figure 8 is a cross-sectional view of a clamping assembly of the present invention;
[0028] In the figure: 1. Placement seat 1; 101. Hollow plate; 102. Threaded column; 103. Motor; 104. Placement seat 2; 105. Notch 1; 106. Notch 2; 107. Lifting device; 108. Platform; 109. Roller 1; 1010. Sliding frame; 1011. Cutting gun; 2. Fixed component; 201. Elastic component 1; 202. Fixed frame; 203. Sliding plate 1; 204. Force plate; 205. Square plate; 206. Elastic telescopic rod; 207. Round plate; 3. Moving mechanism; 301. Sliding block; 302 , push rod; 303, annular plate one; 304, partition one; 31, pressure component; 311, side plate; 312, annular plate two; 313, sliding column one; 314, spring one; 315, extrusion plate; 32, clamping component; 321, connecting plate one; 322, sliding column two; 323, pressure plate; 324, top plate; 325, spring two; 326, partition two; 327, connecting plate two; 328, elastic component two; 329, connecting plate three; 3210, sliding plate two; 3211, roller two; 3212, friction plate. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0030] Example 1: See Figure 1-Figure 4The present invention provides a technical solution: a laser cutting device for an external yarn frame of a yarn doubling machine, comprising a placement seat 1, both ends of the placement seat 1 are fixedly connected to a hollow plate 101, the inner wall of the hollow plate 101 is rotatably connected to a threaded column 102 through a bearing, the outer wall of the hollow plate 101 is fixedly connected to a motor 103, the output end of the motor 103 is fixedly connected to the hollow plate 101, the outer wall of the placement seat 1 is fixedly connected to a sliding frame 1010, the bottom of the sliding frame 1010 is movably connected to a cutting gun 1011, and the placement seat 1 is supported by a plurality of holes. A placement seat 2 104 is fixedly connected to one side of the sliding frame 1010, a gap 105 is opened between the placement seat 1 and the placement seat 2 104, a gap 106 is opened on the top of the placement seat 2 104, the inner wall of the gap 106 is fixedly connected to a fixing component 2, the top of the placement seat 1 is fixedly connected to a lifting device 107, the top of the lifting device 107 is fixedly connected to a platform 108, the inner wall of the placement seat 1 is rotatably connected to a roller 109 through a bearing, and the outer wall of the roller 109 is movably connected to the platform 108.
[0031] The fixed component 2 includes an elastic component 201, the inner wall of the notch 106 is fixedly connected to the elastic component 201, the top of the elastic component 201 is fixedly connected to a fixed frame 202, the top of the hollow plate 101 is movably connected to a sliding plate 203, the outer wall of the sliding plate 203 is fixedly connected to a force-bearing plate 204, the end of the sliding plate 203 away from the force-bearing plate 204 is fixedly connected to a square plate 205, the outer wall of the square plate 205 is rotatably connected to an elastic telescopic rod 206 through a bearing, the end of the elastic telescopic rod 206 away from the square plate 205 is rotatably connected to a circular plate 207 through a bearing, and the side of the circular plate 207 away from the elastic telescopic rod 206 is fixedly connected to the fixed frame 202.
[0032] The working principle of this embodiment is as follows: when cutting the cross bar, the cross bar is placed on the placement seat 1, and then the motor 103 is started to drive the threaded column 102 to rotate, so that the moving mechanism 3 moves backward. After the moving mechanism 3 reaches the position, the cross bar is fixed. At this time, the lifting device 107 moves the platform 108 downward to allow the roller 109 to contact the cross bar, and then the motor 103 is started again to drive the threaded column 102 to reverse, dragging the cross bar to move. When the moving mechanism 3 moves a certain distance, it will apply a thrust to the force plate 204. , driving the force-bearing plate 204 to move, the moving force-bearing plate 204 drives the square plate 205 and the sliding plate 203 to move, and the movement of the square plate 205 drives the elastic telescopic rod 206 to move, and the other end of the elastic telescopic rod 206 drives the fixed frame 202 to move downward to fix the cross bar, and then the motor 103 stops, the moving mechanism 3 no longer moves, the lifting device 107 lifts the platform 108, starts the sliding frame 1010 and the cutting gun 1011, and drives the cutting gun 1011 to cut the cross bar.
[0033] Example 2: Based on Example 1, please refer to Figure 5-Figure 8 The movable mechanism 3 comprises a slider 301 movably connected to the inner wall of the hollow plate 101, the inner wall of the slider 301 is threadedly connected to the threaded column 102, the inner wall of the top of the slider 301 is fixedly connected with a push rod 302, the top of the push rod 302 is fixedly connected with an annular plate 303, the inner wall of the annular plate 303 is fixedly connected with a pressure assembly 31, and the bottom of the annular plate 303 is fixedly connected with a partition 304. When dragging the cross bar, the movable mechanism 3 moves to the corresponding position driven by the threaded column 102, and then the push rod 302 contracts to drive the annular plate 303 to move downward, allowing the pressure assembly 31 and the clamping assembly 32 to fix the cross bar, and then the platform 108 is lowered, and the movable mechanism 3 is driven to move in the opposite direction by the threaded column 102. During the movement, the slider 301 will apply pressure to the force-bearing plate 204, driving the fixed plate to press down. After the cross bar completes the cutting, the push rod 302 will lift the annular plate 303 again to prepare for the next cutting.
[0034] The pressure assembly 31 includes a side plate 311, the inner wall of the annular plate 1 303 is fixedly connected to the side plate 311, and the side plate 311 is fixedly connected to the annular plate 2 312 on the side away from the annular plate 1 303, the inner wall of the annular plate 2 312 is movably connected to the sliding column 1 313, the bottom of the sliding column 1 313 is fixedly connected to the clamping assembly 32, the outer wall of the sliding column 1 313 is sleeved with a spring 1 314, the top of the spring 1 314 is fixedly connected to the annular plate 2 312, and the end of the spring 1 314 away from the annular plate 2 312 is fixedly connected to the clamping assembly 32, and the bottom of the side plate 311 is fixedly connected to the extrusion plate 315. When the annular plate 1 303 is lifted, the annular plate will be reset under the action of the spring 1 314, so that the annular plate 2 312 returns to the top of the sliding column 1 313, and then drives the extrusion plate 315 to move together, so that the extrusion plate 315 no longer applies pressure to the roller 2 3211, allowing the friction plate 3212 to reset.
[0035] The clamping assembly 32 includes a connecting plate 1 321, the bottom of the sliding column 1 313 is fixedly connected to the connecting plate 1 321, the end of the spring 1 314 away from the annular plate 2 312 is fixedly connected to the connecting plate 1 321, the inner wall of the connecting plate 1 321 is movably connected with the sliding column 2 322, the bottom of the sliding column 2 322 is fixedly connected with the pressure plate 323, the top of the sliding column 2 322 is fixedly connected with the top plate 324, the outer wall of the sliding column 2 322 is sleeved with a spring 2 325, the top of the spring 2 325 is fixedly connected to the top plate 324, the end of the spring 2 325 away from the top plate 324 is fixedly connected to the connecting plate 1 321, and the bottom of the connecting plate 1 321 is fixedly connected with the partition 2 3 26. The bottom of the connecting plate 1 321 is also fixedly connected to a connecting plate 2 327, a side of the connecting plate 2 327 close to the partition 2 326 is fixedly connected to an elastic component 2 328, an end of the elastic component 2 328 away from the connecting plate 2 327 is fixedly connected to a sliding plate 2 3210, an outer wall of the sliding plate 2 3210 is movably connected to the partition, a side of the sliding plate 2 3210 close to the partition is fixedly connected to a connecting plate 3 329, both ends of the connecting plate 329 are rotatably connected to roller 2 3211 through bearings, an outer wall of the roller 2 3211 is movably connected to the extrusion plate 315, and an end of the sliding plate 2 3210 away from the elastic component 2 328 is fixedly connected to a friction plate 3212.
[0036] The working principle of this embodiment is as follows: when the push rod 302 drives the annular plate 1 303 to move downward, the annular plate 1 303 will drive the pressure assembly 31 to move downward as a whole, and as the pressure assembly 31 moves, the clamping assembly 32 also moves together. When the pressure plate 323 contacts the cross bar, the pulling spring 1 314 is deformed to increase the elastic force. After the pressure plate 323 contacts the connecting plate 1 321, the connecting plate 1 321 no longer moves, while the annular plate 2 312 continues to move, allowing the extrusion plate 315 to apply pressure to the roller 2 3211, allowing the roller 2 3211 to move toward the middle. As the roller 2 3211 moves, the friction plate 3212 is driven to clamp the cross bar through the connecting plate 3 329 and the sliding plate 2 3210, thereby starting the fixing effect.
[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A laser cutting device for an external yarn frame of a yarn doubling machine, comprising a placement seat (1), both ends of the placement seat (1) being fixedly connected to a hollow plate (101), the inner wall of the hollow plate (101) being rotatably connected to a threaded column (102) via a bearing, the outer wall of the hollow plate (101) being fixedly connected to a motor (103), the output end of the motor (103) being fixedly connected to the hollow plate (101), the outer wall of the placement seat (1) being fixedly connected to a sliding frame ( 1010), the bottom of the sliding frame (1010) is movably connected to a cutting gun (1011), the side of the placement seat 1 (1) close to the sliding frame (1010) is fixedly connected to the placement seat 2 (104), a gap 1 (105) is provided between the placement seat 1 (1) and the placement seat 2 (104), a gap 2 (106) is provided at the top of the placement seat 2 (104), and the inner wall of the gap 2 (106) is fixedly connected to a fixing component (2), characterized in that: Also includes: A moving mechanism (3), the moving mechanism (3) comprising a slider (301) movably connected to the inner wall of the hollow plate (101), the inner wall of the slider (301) being threadedly connected to the threaded column (102), a push rod (302) being fixedly connected to the inner wall at the top of the slider (301), an annular plate 1 (303) being fixedly connected to the top of the push rod (302), a pressure assembly (31) being fixedly connected to the inner wall of the annular plate 1 (303), and a partition plate 1 (304) being fixedly connected to the bottom of the annular plate 1 (303); The fixing component (2) comprises an elastic component 1 (201), the inner wall of the notch 2 (106) is fixedly connected to the elastic component 1 (201), and the top of the elastic component 1 (201) is fixedly connected to a fixing frame (202); The top of the hollow plate (101) is movably connected to a sliding plate (203), the outer wall of the sliding plate (203) is fixedly connected to a force-bearing plate (204), one end of the sliding plate (203) away from the force-bearing plate (204) is fixedly connected to a square plate (205), and the outer wall of the square plate (205) is rotatably connected to an elastic telescopic rod (206) via a bearing; One end of the elastic telescopic rod (206) away from the square plate (205) is rotatably connected to a circular plate (207) via a bearing, and a side of the circular plate (207) away from the elastic telescopic rod (206) is fixedly connected to a fixing frame (202); The pressure assembly (31) comprises a side plate (311), the inner wall of the annular plate 1 (303) is fixedly connected to the side plate (311), the side of the side plate (311) away from the annular plate 1 (303) is fixedly connected to the annular plate 2 (312), the inner wall of the annular plate 2 (312) is movably connected to the sliding column 1 (313), the bottom of the sliding column 1 (313) is fixedly connected to the clamping assembly (32), the outer wall of the sliding column 1 (313) is sleeved with a spring 1 (314), the top of the spring 1 (314) is fixedly connected to the annular plate 2 (312), the end of the spring 1 (314) away from the annular plate 2 (312) is fixedly connected to the clamping assembly (32), and the bottom of the side plate (311) is fixedly connected to the extrusion plate (315); The clamping assembly (32) comprises a connecting plate 1 (321), the bottom of the sliding column 1 (313) is fixedly connected to the connecting plate 1 (321), one end of the spring 1 (314) away from the annular plate 2 (312) is fixedly connected to the connecting plate 1 (321), the inner wall of the connecting plate 1 (321) is movably connected to the sliding column 2 (322), the bottom of the sliding column 2 (322) is fixedly connected to the pressure plate (323), and the top of the sliding column 2 (322) is fixedly connected to the pressure plate (323). The top of the sliding column (322) is fixedly connected to the top plate (324), the outer wall of the sliding column (322) is provided with a spring (325), the top of the spring (325) is fixedly connected to the top plate (324), the end of the spring (325) away from the top plate (324) is fixedly connected to the connecting plate (321), the bottom of the connecting plate (321) is fixedly connected to the partition (326), and the bottom of the connecting plate (321) is also fixedly connected to the connecting plate (327); The second connecting plate (327) is fixedly connected to an elastic component (328) on one side close to the second partition (326), and the second elastic component (328) is fixedly connected to a sliding plate (3210) on one end away from the second connecting plate (327). The outer wall of the second sliding plate (3210) is movably connected to the partition. The second sliding plate (3210) is fixedly connected to a connecting plate (329) on one side close to the partition. Both ends of the connecting plate (329) are rotatably connected to a roller (3211) via bearings. The outer wall of the roller (3211) is movably connected to the extrusion plate (315), and the second sliding plate (3210) is fixedly connected to a friction plate (3212) on one end away from the elastic component (328).
2. The laser cutting device for the external creel of a doubling machine for multiple strands of doubling yarn according to claim 1, characterized in that: The top of the placement seat 1 (1) is fixedly connected to a lifting device (107), the top of the lifting device (107) is fixedly connected to a platform (108), the inner wall of the placement seat 1 (1) is rotatably connected to a roller 1 (109) via a bearing, and the outer wall of the roller 1 (109) is movably connected to the platform (108).