Drafting device of spinning frame

Abstract

The utility model relates to the field of spinning, in particular to a drafting device of a spinning frame, which aims to solve the technical problem that the drafting device in the prior art cannot continue drafting conveniently when fibers are broken, and comprises a front roller, a front leather roller, a rear roller and a rear leather roller, a fan is arranged in the box body, the air outlet end of the fan between the front roller and the rear roller is communicated with a first air pipe, and the upper portion of the first air pipe obliquely points to the rear roller and is communicated with a horizontal second air pipe. The two ends of the second air pipe respectively point to the seam of the front roller and the front leather roller and the rear roller with gaps reserved, fibers at the seam of the rear leather roller advance along the second air pipe and are drawn by the front roller and the rear roller in a matched mode, and when the fibers are broken, the fibers in the second air pipe continue to advance and enter the rear roller under the guidance of airflow without manual participation in continuous drawing. The draw ratio is adjusted by adjusting the distance between the front roller and the rear roller, and the threaded pipe is rotated to adapt to the adjusted distance after adjustment.

Description

Technical Field

[0001] The utility model relates to the field of textile, in particular to a drafting device for a flyer frame. Background Art

[0002] The flyer frame is a key device in the textile industry for stretching spinning fibers into fine yarns. As the core part of the flyer frame, its drafting device plays a crucial role in improving the quality and production efficiency of yarns. The main function of the drafting device is to adjust the stretching degree of fibers by applying tension and controlling the draft ratio, thereby affecting the strength, elongation and other physical properties of the yarn;

[0003] The existing drafting device cannot continue drafting conveniently when the fiber breaks, and the utility model solves the above problems. Summary of the Utility Model

[0004] In order to solve the technical problem that the existing drafting device cannot continue drafting conveniently when the fiber breaks, the utility model further provides a drafting device for a flyer frame.

[0005] A drafting device for a flyer frame includes: a front roller, a front top roller, a back roller, and a back top roller. The front roller, the front top roller, the back roller, and the back top roller cooperate to complete drafting and are all arranged on the upper part of the box body. A blower is arranged in the box body. The air outlet end of the blower between the front roller and the back roller is connected to a first air duct. The upper part of the first air duct inclines towards the back roller and is connected to a horizontal second air duct. Both ends of the second air duct respectively point to the joints of the front roller, the front top roller, the back roller, and the back top roller with gaps.

[0006] Further, a third air duct is arranged in front of the front roller. The third air duct is concentric with the second air duct. The lower part of the third air duct is connected to the first air duct, and the lower end of the first air duct is connected to the air outlet end of the blower.

[0007] Further, the front roller and the front top roller are rotatably connected to a first bearing block, and the back roller and the back top roller are rotatably connected to a second bearing block. The first bearing block is connected to the upper surface of the box body. The second bearing block is slidably connected in a slide rail, and the slide rail is connected to the upper surface of the box body. A hydraulic cylinder is connected between the first bearing block and the second bearing block. The power of the front roller and the back roller is provided by a power transmission mechanism. The second air duct is threadedly connected to a threaded pipe, and the inner diameters of the second air duct and the threaded pipe are the same.

[0008] Further, the power transmission mechanism includes belt pulleys. Two belt pulleys are respectively connected to the shaft ends of the front roller and the back roller. The diameter of the belt pulley at the shaft end of the back roller is smaller than that of the belt pulley at the shaft end of the front roller. The two belt pulleys and a tension pulley are connected by a belt. The tension pulley is rotatably connected to a slider shaft. The slider shaft is slidably connected in a chute. The chute is arranged on the side wall of the box body. A spring is connected between the top wall inside the chute and the slider shaft, and the spring is in a compressed state.

[0009] Advantages of the utility model:

[0010] 1. Fibers travel in the second air duct and are drawn by the cooperation of the front and rear rollers. When the fibers break, the fibers in the second air duct continue to travel into the rear roller under the guidance of the air flow and are drawn without manual intervention;

[0011] 2. The draft ratio is adjusted by adjusting the distance between the front and rear rollers, and the threaded tube is rotated after adjustment to adapt to the adjusted distance. Description of the drawings

[0012] Figure 1 is a schematic structural diagram of the utility model;

[0013] Figure 2 is a schematic sectional view of the structure of the utility model.

[0014] In the figure: front roller 1; front leather roller 2; rear roller 3; rear leather roller 4; box body 5; first air duct 6; second air duct 7; third air duct 8; first bearing seat 9; second bearing seat 10; slide rail 11; hydraulic cylinder 12; power transmission mechanism 13; belt pulley 131; belt 132; tensioning belt pulley 133; slider shaft 134; chute 135; spring 136; threaded tube 14. Specific implementation manners

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0016] The term "rotary connection" in this device refers to installing a bearing on a shaft by baking, with a spring retaining ring groove provided on the shaft or shaft hole, and axially fixing the bearing by clamping an elastic retaining ring in the retaining ring groove to achieve rotation; the term "hinged connection" refers to a connection method that moves on connecting parts such as hinges, pin shafts, and short shafts.

[0017] The present utility model will be described in detail below with reference to the accompanying drawings.

[0018] Embodiment 1:

[0019] Next, in combination with the attached Figure 1-2This embodiment describes a drafting device for a spinning frame, which includes: a front roller 1, a front apron 2, a back roller 3, and a back apron 4. The front roller 1, the front apron 2, the back roller 3, and the back apron 4 cooperate to complete drafting and are all arranged on the upper part of the box body 5. A blower is provided inside the box body 5. The air outlet end of the blower between the front roller 1 and the back roller 3 is connected to an air duct 6. The upper part of the air duct 6 inclines towards the back roller 3 and is connected to a horizontal air duct 7. Both ends of the air duct 7 respectively leave gaps and point to the joint of the front roller 1 and the front apron 2, and the joint of the back roller 3 and the back apron 4;

[0020] Feed the fibers into the joint of the front roller 1 and the front apron 2 through the front part of the front roller 1. The rotation of the front roller 1 and the front apron 2 conveys the fibers to the other side. Turn on the blower. The blower blows air through the air duct 6 into the air duct 7. The air duct 7 sucks in the fibers and discharges them through the other end under the guidance of the air flow, and enters the joint of the back roller 3 and the back apron 4 to start drafting. Even if the fibers break, the fibers can still travel along the air duct 7 and continue drafting without manual participation.

[0021] There is an air duct 8 in the front part of the front roller 1. The air duct 8 is concentric with the air duct 7. The lower part of the air duct 8 is connected to the air duct 6. The lower end of the air duct 6 is connected to the air outlet end of the blower;

[0022] Insert the fibers into the air duct 8. Under the guidance of the air flow, the fibers pass through the front roller 1 and enter the air duct 7 without the need to correct the position of the fibers.

[0023] The front roller 1 and the front apron 2 are rotationally connected to a bearing block 9. The back roller 3 and the back apron 4 are rotationally connected to a bearing block 10. The bearing block 9 is connected to the upper surface of the box body 5. The bearing block 10 is slidably connected to a slide rail 11. The slide rail 11 is connected to the upper surface of the box body 5. A hydraulic cylinder 12 is connected between the bearing block 9 and the bearing block 10. The power of the front roller 1 and the back roller 3 is provided by a power transmission mechanism 13. The air duct 7 is threadedly connected to a threaded pipe 14. The inner diameters of the air duct 7 and the threaded pipe 14 are the same;

[0024] By controlling the telescopic movement of the hydraulic cylinder 12, control the distance between the bearing block 9 and the bearing block 10, and then control the distance between the front roller 1 and the back roller 3, adjust the drafting ratio of the front and back rollers. After the adjustment is completed, rotate the threaded pipe 14 to adjust the total length of the guiding pipe.

[0025] The power transmission mechanism 13 includes pulley 131. Two pulleys 131 are respectively connected to the shaft ends of the front roller 1 and the back roller 3. The diameter of the pulley 131 at the shaft end of the back roller 3 is smaller than the diameter of the pulley at the shaft end of the front roller 1. The two pulleys 131 and a tension pulley 133 are connected by a belt 132. The tension pulley 133 is rotationally connected to a slider shaft 134. The slider shaft 134 is slidably connected to a chute 135. The chute 135 is opened on the side wall of the box body 5. A spring 136 is connected between the top wall inside the chute 135 and the slider shaft 134. The spring 136 is in a compressed state;

[0026] Power is input through the end of the front roller 1 or the rear roller 3 shaft, and is transmitted through the pulley 131, the tension pulley 133, and the belt 132, driving the front roller 1 or the rear roller 3 to rotate. Since the diameter of the pulley 131 at the end of the rear roller 3 shaft is smaller than the diameter of the pulley at the end of the front roller 1 shaft, there is a speed difference between the front roller 1 and the rear roller 3 to complete drafting. When the distance between the front roller 1 and the rear roller 3 is adjusted, the belt 132 drives the tension pulley 133 and the slider shaft 134 to slide along the chute 135, and the spring 136 is compressed to keep the belt 132 always taut, so that the transmission will not fail.

[0027] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0028] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spinning frame drafting device, comprising: The front roller (1), the front leather roller (2), the back roller (3), and the back leather roller (4) cooperate with each other to complete the drafting and are all arranged on the upper part of the box (5). The invention is characterized in that: a fan is arranged in the box body (5), an air outlet end of the fan between the front roller (1) and the rear roller (3) is connected to the first air duct (6), the upper part of the first air duct (6) is inclined to point to the rear roller (3) and is connected to the second horizontal air duct (7), and gaps are left at the two ends of the second air duct (7) to point to the joints of the front roller (1) and the front roller (2), and the joints of the rear roller (3) and the rear roller (4).

2. A spinning frame drafting device according to claim 1, characterized in that: The front part of the front roller (1) is provided with a third air duct (8), which is concentrically arranged with the second air duct (7), the lower part of the third air duct (8) is connected with the first air duct (6), and the lower end of the first air duct (6) is connected with the air outlet end of the fan.

3. A spinning frame drafting device according to claim 1, characterized in that: The front roller (1) and the front roller (2) are rotatably connected to the bearing seat 1 (9), the rear roller (3) and the rear roller (4) are rotatably connected to the bearing seat 2 (10), the bearing seat 1 (9) is connected to the upper surface of the box body (5), the bearing seat 2 (10) is slidably connected in the slide rail (11), the slide rail (11) is connected to the upper surface of the box body (5), a hydraulic cylinder (12) is connected between the bearing seat 1 (9) and the bearing seat 2 (10), the power of the front roller (1) and the rear roller (3) is provided by a power transmission mechanism (13), the air duct 2 (7) is threadedly connected to the threaded tube (14), and the air duct 2 (7) and the threaded tube (14) have the same inner diameter.

4. A spinning frame drafting device according to claim 3, characterized in that: The power transmission mechanism (13) comprises a pulley (131), wherein the two pulleys (131) are respectively connected to the shaft ends of the front roller (1) and the rear roller (3), the diameter of the pulley (131) at the shaft end of the rear roller (3) is smaller than the diameter of the pulley at the shaft end of the front roller (1), the two pulleys (131) and a tensioning pulley (133) are connected via a belt (132), the tensioning pulley (133) is rotationally connected to a slider shaft (134), the slider shaft (134) is slidably connected to a slide groove (135), the slide groove (135) is provided on the side wall of the box body (5), a spring (136) is connected between the top wall of the slide groove (135) and the slider shaft (134), and the spring (136) is in a compressed state.

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