Drafting device for producing chemical fibers of non-woven products

Abstract

The utility model discloses a drafting device for producing chemical fibers of non-woven products, which comprises a bottom plate and a tensioning frame, one side of the top of the bottom plate is connected with a traction frame, two groups of rollers are rotatably connected in the traction frame through bearings, the other side of the top of the bottom plate is connected with a rolling frame, and a heating component is arranged between the rolling frame and the traction frame. An external motor is started to work to drive the winding drum to rotate to wind chemical fibers, the chemical fibers are drafted under winding pulling of the winding drum, after heat emitted by the heating plate is absorbed by the hot roller, the heat is transferred to the chemical fibers when the hot roller makes contact with the chemical fibers, and therefore the chemical fibers are heated, drafting stress is reduced, and the chemical fibers are drafted. When the chemical fibers are heated by the heating roller, the chemical fibers are softened and easily drafted, redundant heat emitted by the heating plate can be dissipated into the heating box when not absorbed by the heating roller, heat preservation is carried out through the heat preservation pad arranged in the heating box, heat loss is effectively reduced, more heat is concentrated on the heating roller and the heating of the chemical fibers, and the heating efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to chemical fiber drafting processing technical field, concretely relates to a kind of production non-woven product's chemical fiber's drafting device. BACKGROUND

[0002] In the production of non-woven product's chemical fiber (chemical fiber) process, drafting device is mainly used to stretch nascent chemical fiber, and the molecular chain of chemical fiber is in a state of relatively chaotic after spinning, and the drafting device is arranged to stretch the fiber, so that the fiber molecular chain is arranged along the stretching direction, to improve the mechanical properties and dimensional stability of the fiber.

[0003] The existing chemical fiber drafting device is generally composed of an unwinding device, a winding device and a roller for limiting the tow. When drafting the chemical fiber, the unwinding device unwinds the chemical fiber, and the chemical fiber is heated when passing through the surface of the hot drafting roller. At the same time, the winding device winds the chemical fiber. By adjusting the winding and unwinding speed of the tow through the winding and unwinding device, the chemical fiber is stretched, and the stretching of the chemical fiber is realized. However, when the hot drafting roller heats the chemical fiber, the chemical fiber is heated through the internal heating of the hot drafting roller. When the fiber passes through the surface of the hot drafting roller, it is heated by the heat of the hot drafting roller. However, the heat on the surface of the hot drafting roller will cause the surrounding air to warm up. The hot air will rise and take away part of the heat, so that a lot of heat will be wasted in the heat transfer process, and the heating efficiency will be greatly reduced. SUMMARY

[0004] The utility model aims to provide a kind of production non-woven product's chemical fiber's drafting device to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of production non-woven product's chemical fiber's drafting device, comprising:

[0006] The bottom plate is connected with a traction frame on one side of the top, and two groups of rotating rollers are arranged in an upper and lower arrangement in the traction frame and connected with the bottom plate through bearings. A winding frame for winding the drafted chemical fiber is connected to the other side of the top of the bottom plate. A heating assembly for heating the drafted chemical fiber is arranged between the winding frame and the traction frame. The heating box of the heating assembly is used to draft the chemical fiber, so that the heating plate in the heating box can heat the chemical fiber during drafting.

[0007] A tensioning frame is arranged on both sides of the heating box to adjust the tension of the chemical fiber.

[0008] Preferably, the heating assembly comprises a first air cylinder and an adjusting frame. The heating box is connected to the top of the bottom plate, and the first air cylinder is arranged on the top of the heating box. The piston rod of the first air cylinder is movably connected to the adjusting frame after penetrating the heating box.

[0009] Preferably, the bottom of the adjusting frame is rotatably connected with a heating roller through a bearing, guide rods are arranged in the heating box and located at both ends of the adjusting frame, and the both ends of the adjusting frame are slidably sleeved on the surfaces of the guide rods.

[0010] Preferably, the heating box is provided with a heat preservation pad, and both sides of the heating box are provided with grooves.

[0011] Preferably, the top of the bottom plate is connected with two groups of vertical seats, the second cylinders are arranged in the vertical seats, and the piston rods of the second cylinders are movably penetrated through the vertical seats and connected with the tension frame.

[0012] Preferably, the both sides of the tension frame are provided with sliding rods, the sliding rods are slidably sleeved with sliding blocks, the both groups of sliding blocks are rotatably connected with rollers through bearings, and the surfaces of the sliding rods are sleeved with springs, and the both ends of the springs are connected with the tension frame and the sliding blocks respectively.

[0013] Preferably, the winding frame is rotatably connected with a winding roller through a bearing.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] (1) the heating plate in the heating box is electrified to work, the heating box is heated, the piston rod of the first cylinder drives the adjusting frame to move downwards, the heating roller moves downwards and presses the chemical fiber, so that the chemical fiber is in a tension state, the external motor is started to work to drive the winding roller to rotate and wind the chemical fiber, the chemical fiber is drafted under the winding of the winding roller, the heat emitted by the heating plate is absorbed by the heating roller, and the heat is transmitted to the chemical fiber when the heating roller contacts the chemical fiber, so that the chemical fiber is heated, the activity of the fiber molecular chain is enhanced under the action of the heat, the drafting stress is reduced, the chemical fiber is softened and is more easily drafted, when the excess heat emitted by the heating plate is not absorbed by the heating roller, the heat is radiated into the heating box and is preserved by the heat preservation pad arranged in the heating box, heat loss is effectively reduced, the heat is more concentrated on the heating of the heating roller and the chemical fiber, and the heating efficiency is improved.

[0016] (2) when the drafting tension of the chemical fiber needs to be adjusted, the second cylinder is started to drive the tension frame to move, so that the relative position of the roller in the tension frame and the fiber is changed, the drafting tension is adjusted, the roller is driven to slide on the sliding rod under the pressure of the drafting tension of the chemical fiber and compresses the spring, the sliding block and the roller are pushed to apply pressure to the chemical fiber under the action of the elasticity of the spring, the tension stability is maintained, the chemical fiber is uniformly stressed in the drafting process, and the drafting stability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structural schematic view of the utility model;

[0018] Fig. 2 This is a schematic diagram of the internal structure of this utility model;

[0019] Fig. 3 This is a schematic diagram of the tensioning frame and rollers of this utility model.

[0020] In the diagram: 1. Base plate; 2. Traction frame; 3. Rotary roller; 4. Winding frame; 5. Winding drum; 6. Heating box; 7. Chemical fiber; 8. Heating plate; 9. Tensioning frame; 10. First cylinder; 11. Adjusting frame; 12. Heating roller; 13. Guide rod; 14. Insulation pad; 15. Grooving; 16. Stand; 17. Second cylinder; 18. Sliding rod; 19. Sliding block; 20. Roller; 21. Spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides, for example Figs. 1-3 The illustrated drawing apparatus for producing nonwoven products from synthetic fibers includes:

[0023] A base plate 1 is provided. A traction frame 2 is connected to one side of the top of the base plate 1. Two sets of rollers 3 arranged vertically are rotatably connected to the traction frame 2 through bearings. A winding frame 4 for winding the stretched chemical fiber 7 is connected to the other side of the top of the base plate 1. A heating component for heating the stretched chemical fiber 7 is provided between the winding frame 4 and the traction frame 2. The chemical fiber 7 is stretched through the heating box 6 of the heating component, so that the heating plate 8 in the heating box 6 heats the chemical fiber 7 when it is stretched.

[0024] Tensioning frame 9 is located on both sides of heating box 6 and is used to adjust the tension of chemical fiber 7.

[0025] The heating assembly includes a first cylinder 10 and an adjusting frame 11. The heating box 6 is connected to the top of the base plate 1 and the first cylinder 10 is located on the top of the heating box 6. The piston rod of the first cylinder 10 moves through the heating box 6 and is connected to the adjusting frame 11.

[0026] The bottom of the adjusting frame 11 is rotatably connected to the hot roller 12 via a bearing. The heating box 6 is provided with guide rods 13 at both ends of the adjusting frame 11. The two ends of the adjusting frame 11 are slidably sleeved on the surface of the guide rods 13. When the adjusting frame 11 moves, the two ends slide on the surface of the guide rods 13. The direction of movement of the adjusting frame 11 can be guided by the guide rods 13, thereby enhancing the stability of the adjusting frame 11 driving the hot roller 12 to move.

[0027] The heating box 6 is equipped with a heat insulation pad 14. The heating box 6 has slots 15 on both sides. The heat insulation pad 14 is made of ceramic fiber, which is a commonly used high-temperature heat insulation material with a low thermal conductivity. It can effectively prevent the transfer of heat, so that the heat can be retained in the heating box 6 as much as possible.

[0028] The top of the base plate 1 is connected to two sets of uprights 16, and a second cylinder 17 is installed in the upright 16. The piston rod of the second cylinder 17 moves through the upright 16 and is connected to the tensioning frame 9. The second cylinder 17 can be activated to push the tensioning frame 9 to move, thereby changing the relative position of the roller 20 and the fiber in the tensioning frame 9.

[0029] The tensioning frame 9 has slide rods 18 on both sides, and sliders 19 are slidably sleeved on the surface of the slide rods 18. Rollers 20 are rotatably connected between the two sets of sliders 19 through bearings. Springs 21 are sleeved on the surface of the slide rods 18, and the two ends of the springs 21 are respectively connected to the tensioning frame 9 and the sliders 19. The groove in the middle of the roller 20 can confine the chemical fiber 7 within the groove, preventing the chemical fiber 7 from slipping off the roller 20 when it is wound up.

[0030] The winding frame 4 is rotatably connected to the winding drum 5 via bearings, through which the chemical fiber 7 can be wound up.

[0031] The fiber drawing device for producing nonwoven products involves passing one end of the fiber 7 between two sets of rotating rollers 3, contacting the top of the roller 20, and then inserting it into the slot 15. It then passes through the bottom of the hot roller 12, exits through another slot 15 in the heating box 6, contacts the top of another set of rollers 20, and connects to the surface of the take-up drum 5. The heating plate 8 inside the heating box 6 is energized to heat the area. The piston rod of the first cylinder 10 drives the adjusting frame 11 downwards, causing the hot roller 12 to move downwards and press down on the fiber 7, thus putting the fiber 7 in a tensioned state. Then, an external motor is started to rotate the take-up drum 5. The chemical fiber 7 is wound up, and the winding drum 5 pulls the chemical fiber 7 to achieve stretching. After the heat emitted by the heating plate 8 is absorbed by the hot roller 12, the hot roller 12 transfers the heat to the chemical fiber 7 when it comes into contact with the chemical fiber 7, thereby heating the chemical fiber 7. This enhances the mobility of the fiber molecular chains under the action of heat and reduces stretching stress. When the excess heat emitted by the heating plate 8 is not absorbed by the hot roller 12, it will dissipate into the heating box 6 and be insulated by the heat insulation pad 14 provided in the heating box 6, which effectively reduces heat loss and concentrates more heat on the heating roller 12 and the chemical fiber 7, thus improving heating efficiency.

[0032] When it is necessary to adjust the stretching tension of the chemical fiber 7, the second cylinder 17 can be activated to push the tensioning frame 9 to move, thereby changing the relative position of the roller 20 and the fiber in the tensioning frame 9, and adjusting the stretching tension of the chemical fiber 7. The roller 20 will drive the slider 19 to slide on the slide rod 18 under the pressure of the stretching tension of the chemical fiber 7, and compress the spring 21. Under the action of the elastic force of the spring 21, the slider 19 and the roller 20 will push the slider 19 and the roller 20 to apply pressure to the chemical fiber 7, maintain the tension stability, ensure that the chemical fiber 7 is subjected to uniform force during the stretching process, and improve the stretching stability.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drawing device for producing nonwoven products from chemical fibers, characterized in that, include: A base plate (1) is connected to a traction frame (2) on one side of the top of the base plate (1), and two sets of rollers (3) arranged vertically are rotatably connected in the traction frame (2) through bearings. A winding frame (4) for winding the stretched chemical fiber (7) is connected to the other side of the top of the base plate (1). A heating component for heating the stretched chemical fiber (7) is provided between the winding frame (4) and the traction frame (2). The chemical fiber (7) is stretched through the heating box (6) of the heating component, so that the heating plate (8) in the heating box (6) heats the chemical fiber (7) when it is stretched. Tensioning frame (9) is located on both sides of heating box (6) and is used to adjust the tension of chemical fiber (7). The heating assembly includes a first cylinder (10) and an adjusting frame (11). The heating box (6) is connected to the top of the base plate (1) and the first cylinder (10) is located on the top of the heating box (6). The piston rod of the first cylinder (10) moves through the heating box (6) and is connected to the adjusting frame (11). The bottom of the adjusting frame (11) is rotatably connected to a hot roller (12) through a bearing. The heating box (6) is provided with guide rods (13) at both ends of the adjusting frame (11). The two ends of the adjusting frame (11) are slidably sleeved on the surface of the guide rods (13). The heating box (6) is provided with a heat insulation pad (14). The heating box (6) has slots (15) on both sides.

2. The fiber drawing device for producing nonwoven products according to claim 1, characterized in that: The top of the base plate (1) is connected to two sets of uprights (16), and a second cylinder (17) is provided in the uprights (16). The piston rod of the second cylinder (17) moves through the uprights (16) and is connected to the tensioning frame (9).

3. The fiber drawing device for producing nonwoven products according to claim 1, characterized in that: The tensioning frame (9) has sliding rods (18) on both sides and sliders (19) are slidably sleeved on the surface of the sliding rods (18). Rollers (20) are rotatably connected between the two sets of sliders (19) through bearings. Springs (21) are sleeved on the surface of the sliding rods (18) and the two ends of the springs (21) are respectively connected to the tensioning frame (9) and the sliders (19).

4. The fiber drawing device for producing nonwoven products according to claim 1, characterized in that: The winding frame (4) is rotatably connected to the winding drum (5) via bearings.

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