Drafting mechanism of air covered yarn machine

Abstract

The utility model provides a drafting mechanism of an air covering yarn machine, and relates to the technical field of air covering yarn drafting, the drafting mechanism of the air covering yarn machine comprises a mounting box, a yarn, a roller part, a shell and a tensioning unit, the tensioning unit comprises a supporting plate, a yarn guide wheel is arranged on one side of the supporting plate, a bottom plate is arranged below the supporting plate, and the bottom plate is arranged below the supporting plate. A guide rod is arranged at the lower end of the bottom plate, penetrates through the shell and is slidably connected with the shell, a baffle is arranged at the lower end of the guide rod, the guide rod is sleeved with a spring, the spring is located between the shell and the baffle, a transverse plate is arranged on one side of the guide rod and located in the shell, and a through groove used for sliding of the transverse plate is formed in one side of the shell. When the device is used, drafted silk threads can be always kept in a tensioned state, the conditions of loosening, slipping and transverse movement between the silk threads and the roller are avoided, interference among different silk threads is avoided, the silk thread drafting effect is improved, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of air-covered yarn drafting, in particular to a drafting mechanism of an air-covered yarn machine. Background Art

[0002] Air covering is a new type of covering yarn-making method, which uses air flow to act on fibers to perform twisting operations and spin them into yarn. Due to its short spinning process, high production efficiency, low energy consumption, and flexible process, it quickly stood out among various new spinning methods.

[0003] When the existing drawing machine is in use, the friction between the rollers on the drawing machine and the filament bundle is relied upon to stretch the filament bundle. However, during the process of drawing the filament bundle, the drawing machine does not have a device for tensioning the filament bundle, and the filament bundle is prone to slippage when being pulled, resulting in poor drawing effect of the drawing machine on the filament bundle. Utility Model Content

[0004] The purpose of the present invention is to provide a drafting mechanism for an air covered yarn machine, aiming to solve the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the drafting mechanism of the air-covered silk machine includes an installation box, a roller portion for drawing the silk thread is provided on one side of the installation box, a shell is provided on one side of the installation box, at least one tensioning unit is provided on the shell, and the tensioning unit includes a support plate, a wire pulley is provided on one side of the support plate, a bottom plate is provided below the support plate, a guide rod is provided at the lower end of the bottom plate, the guide rod passes through the shell and is slidably connected to the shell, a baffle is provided at the lower end of the guide rod, a spring is sleeved on the guide rod, the spring is located between the shell and the baffle, a cross plate is provided on one side of the guide rod, the cross plate is located inside the shell, a through groove for sliding the cross plate is provided on one side of the shell, and a slider is provided at one end of the cross plate.

[0006] Preferably, the roller portion includes several roller units, and the roller unit includes a reduction motor arranged on one side of the mounting box, the output end of the reduction motor is provided with a main shaft rotatably connected to the mounting box, and a limiting plate is provided on the main shaft. It also includes a roller, and a sleeve is provided inside the roller, and the sleeve is slidably connected to the main shaft. A nut is threadedly connected to the main shaft, and a compressible gasket is provided on one side of the nut.

[0007] Preferably, a limiting rod is evenly provided on one side of the limiting plate, and a limiting hole matching with the limiting rod is opened on the side of the sleeve.

[0008] Preferably, grooves are evenly arranged on the outer surface of the roller.

[0009] Preferably, an anti-slip wheel is provided on one side of the support plate and below the guide wheel, and a gap for the wire to pass through exists between the anti-slip wheel and the guide wheel.

[0010] The beneficial effects of the utility model are:

[0011] When the device is in use, the drawn silk thread can always be kept in a tensioned state, thereby avoiding loosening, slipping and lateral shifting between the silk thread and the roller, and avoiding interference between different silk threads, thereby improving the drawing effect of the silk thread and having a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model.

[0013] Figure 2 It is a front view of a specific embodiment of the utility model.

[0014] Figure 3 It is a side view of a specific embodiment of the utility model.

[0015] Figure 4 It is a structural diagram of the roller unit.

[0016] In the figure: 1. Installation box; 2. Shell; 3. Support plate; 4. Wire pulley; 5. Bottom plate; 6. Guide rod; 7. Baffle; 8. Spring; 9. Horizontal plate; 10. Through slot; 11. Slider; 12. Reducer motor; 13. Main shaft; 14. Limit plate; 15. Roller; 16. Sleeve; 17. Nut; 18. Gasket; 19. Limit rod; 20. Anti-slip pulley; 21. Silk thread. DETAILED DESCRIPTION

[0017] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1-4 As shown, a drawing mechanism of an air-covered yarn machine includes an installation box 1, a roller 15 for drawing a yarn 21 is provided on one side of the installation box 1, a shell 2 is provided on one side of the installation box 1, at least one tensioning unit is provided on the shell 2, the tensioning unit includes a support plate 3, a wire pulley 4 is provided on one side of the support plate 3, a bottom plate 5 is provided below the support plate 3, a guide rod 6 is provided at the lower end of the bottom plate 5, the guide rod 6 passes through the shell 2 and is slidably connected to the shell 2, a baffle 7 is provided at the lower end of the guide rod 6, a spring 8 is sleeved on the guide rod 6, the spring 8 is located between the shell 2 and the baffle 7, a cross plate 9 is provided on one side of the guide rod 6, the cross plate 9 is located inside the shell 2, a through groove 10 for sliding of the cross plate 9 is opened on one side of the shell 2, and a slider 11 is provided at one end of the cross plate 9.

[0019] In the initial state, the bottom plate 5 maintains contact with the upper surface of the shell 2, and the wire 21 passes around the bottom of the wire wheel 4 and around the roller 15. During the rotation of the roller 15, there is a large friction force between the roller 15 and the wire 21, which will lift the wire wheel 4 through the wire 21. After the wire wheel 4 is lifted, the baffle 7 at the bottom of the guide rod 6 will squeeze the spring 8. When the wire 21 becomes slightly loose, the spring 8 will press the wire 21 down through the wire wheel 4 in time, so that the wire 21 continues to remain in a tensioned state, and as the roller 15 continues to transmit, the wire wheel 4 will continue to be sleeved through the wire 21, and the spring 8 will continue to be compressed, so that when the wire 21 becomes loose in the future, the wire 21 can be kept in a tensioned state in time.

[0020] When the wire 21 is too tight, the wire pulley 4 will be lifted by the wire 21, causing the spring 8 to continue to compress and the height of the wire pulley 4 to rise to prevent the wire 21 from being too tight. When the tension of the wire 21 decreases, the spring 8 will control the wire pulley 4 to move downward.

[0021] The two sides of the horizontal plate 9 are in contact with the two sides of the through slot 10. When the guide rod 6 moves up and down, the cooperation between the horizontal plate 9 and the through slot 10 can prevent the guide rod 6 from deflecting. At the same time, the height of the wire wheel 4 can also be manually controlled by the slider 11.

[0022] Furthermore, the roller 15 portion includes a plurality of roller 15 units, each of which includes a reduction motor 12 disposed on one side of the mounting box 1, a main shaft 13 rotatably connected to the mounting box 1 being disposed at the output end of the reduction motor 12, a limit plate 14 being disposed on the main shaft 13, and a roller 15, wherein a sleeve 16 is disposed inside the roller 15, the sleeve 16 being slidably connected to the main shaft 13, a nut 17 being threadedly connected to the main shaft 13, and a compressible gasket 18 being disposed on one side of the nut 17. When the roller 15 is mounted on the main shaft 13, the sleeve 16 inside the roller 15 is firstly sleeved on the main shaft. 13, and then push the roller 15 toward the mounting box 1 until one end of the sleeve 16 abuts against the limit plate 14, and then put the gasket 18 on the main shaft 13, and then thread the nut 17 on the main shaft 13, and compress the gasket 18 through the threaded connection of the nut 17, and then fix the roller 15 on the main shaft 13. When the wire 21 is stretched, the reduction motor 12 is started, and the reduction motor 12 drives the main shaft 13 to rotate, and the main shaft 13 drives the roller 15 to rotate through the sleeve 16. The friction between the wire 21 and the surface of the roller 15 is used to achieve stretching.

[0023] Furthermore, a limiting rod 19 is evenly arranged on one side of the limiting plate 14, and a limiting hole that cooperates with the limiting rod 19 is opened on the side of the sleeve 16. When the limiting rod 19 enters the limiting hole on the side of the sleeve 16, relative sliding between the sleeve 16 and the main shaft 13 can be avoided, which can ensure that the roller 15 can rotate synchronously with the main shaft 13.

[0024] Furthermore, grooves are evenly arranged on the outer surface of the roller 15 to increase the heat dissipation effect of the roller 15 and also to increase the friction between the roller 15 and the wire 21 .

[0025] Furthermore, an anti-slip wheel 20 is provided on one side of the support plate 3 and below the wire pulley 4. There is a gap between the anti-slip wheel 20 and the wire pulley 4 for the wire thread 21 to pass through. The wire thread 21 can enter between the wire pulley 4 and the anti-slip wheel 20 from the sides. The anti-slip wheel 20 can make the wire thread 21 relatively stably remain between the wire pulley 4 and the anti-slip wheel 20, increasing the difficulty of the wire thread 21 to detach from the wire pulley 4.

[0026] When the device is in use, the stretched wire 21 can always be kept in a tensioned state, avoiding loosening, slipping and lateral shifting between the wire 21 and the roller 15, and avoiding interference between different wires 21, thereby improving the stretching effect of the wire 21 and having a good use effect.

[0027] In the description of this utility model, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

Claims

1. A drafting mechanism for an air covered yarn machine, characterized in that: The cam is provided with a roller for drawing the silk thread on one side of the mounting box, a shell is provided on one side of the mounting box, at least one tensioning unit is provided on the shell, and the tensioning unit includes a support plate, a wire pulley is provided on one side of the support plate, a bottom plate is provided under the support plate, a guide rod is provided at the lower end of the bottom plate, the guide rod passes through the shell and is slidably connected to the shell, a baffle is provided at the lower end of the guide rod, a spring is sleeved on the guide rod, the spring is located between the shell and the baffle, a cross plate is provided on one side of the guide rod, the cross plate is located inside the shell, a through groove for sliding of the cross plate is provided on one side of the shell, and a slider is provided at one end of the cross plate.

2. The drafting mechanism of the air covered yarn machine according to claim 1, characterized in that: The roller portion includes several roller units, and the roller unit includes a reduction motor arranged on one side of the mounting box. The output end of the reduction motor is provided with a main shaft rotatably connected to the mounting box, and a limit plate is provided on the main shaft. It also includes a roller, and a sleeve is provided inside the roller. The sleeve is slidably connected to the main shaft, and a nut is threadedly connected to the main shaft, and a compressible gasket is provided on one side of the nut.

3. The drafting mechanism of the air covered yarn machine according to claim 2, wherein: A limiting rod is evenly arranged on one side of the limiting plate, and a limiting hole matched with the limiting rod is opened on the side of the sleeve.

4. The drafting mechanism of the air covered yarn machine according to claim 2, characterized in that: The outer surface of the roller is evenly provided with grooves.

5. The drafting mechanism of the air covered yarn machine according to any one of claims 1 to 4, characterized in that: An anti-slip wheel is provided on one side of the support plate and below the guide wheel, and a gap is provided between the anti-slip wheel and the guide wheel for the wire to pass through.

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