Polypropylene staple fiber drafting and oiling device

Abstract

The utility model discloses a polypropylene staple fiber drafting oiling device which comprises a plurality of drafting rollers used for drafting polypropylene staple fibers, an oil storage tank and an oil supply pipe, the oil storage tank is detachably installed under one of the drafting rollers, an oiling sponge is detachably installed at the opening end of the oil storage tank, and the oil supply pipe is fixedly installed in an inner cavity of the oil storage tank. The oil supply pipe is located under the oiling sponge, an oil spraying head used for supplying oil to the oiling sponge is fixedly installed on the side, close to the oiling sponge, of the oil supply pipe, an oil pump is fixedly installed on the outer wall of the oil storage tank, and a guide pipe is fixedly installed at the oil outlet end of the oil pump. According to the oiling device, the polypropylene staple fibers in a stretched state can be oiled through mutual matching of all the parts, the airing time of the oiled polypropylene staple fibers can be shortened, and the production efficiency of drafting of the polypropylene staple fibers can be improved.

Description

Technical Field

[0001] This utility model relates to the field of polypropylene staple fiber production technology, and in particular to a polypropylene staple fiber drawing and oiling device. Background Technology

[0002] Fiber drawing is a key process in chemical fiber production. By stretching the fiber, its molecular chains are oriented, thereby improving the fiber strength, modulus and mechanical properties. However, in order to reduce friction between fibers, prevent static electricity and improve subsequent performance, the fiber needs to be oiled before stretching.

[0003] Currently, fiber stretching of polypropylene staple fiber is indispensable in the processes of new polypropylene staple fiber production and post-consumer secondary production. Before stretching, polypropylene staple fiber needs to be soaked in an oil bath to allow the oil to adhere to the outer surface of the fiber. After a period of time, the polypropylene staple fiber soaked in the oil bath is removed. Due to the large amount of oil, the removed polypropylene staple fiber needs to be left to air dry for a period of time until the oil adhering to the outer surface of the fiber no longer drips. The air drying of polypropylene staple fiber mainly relies on gravity and the physical properties of the oil itself. This process is relatively slow and has a long cycle, which is not conducive to improving the production efficiency of polypropylene staple fiber. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a polypropylene staple fiber drawing and oiling device, which aims to solve the problems in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A polypropylene staple fiber drawing and oiling device, comprising:

[0007] Multiple drawing rollers used for drawing polypropylene staple fibers;

[0008] An oil reservoir is detachably installed directly below one of the drafting rollers, and an oiling sponge for applying oil to the outer wall of the drafting roller located directly above is detachably installed at the open end of the oil reservoir.

[0009] The oil supply pipe is fixedly installed in the inner cavity of the oil reservoir, and the oil supply pipe is located directly below the oil sponge. An oil nozzle for supplying oil to the oil sponge is fixedly installed on the side of the oil supply pipe near the oil sponge. An oil pump is fixedly installed on the outer wall of the oil reservoir. A conduit is fixedly installed at the oil outlet end of the oil pump. The end of the conduit away from the oil pump extends into the inner cavity of the oil reservoir and is fixedly connected to the outer wall of the oil supply pipe. An oil inlet pipe is fixedly installed at the oil inlet end of the oil pump. The end of the oil inlet pipe away from the oil pump extends into the inner cavity of the oil reservoir.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the oiled sponge is curved, and the outer wall of the oiled sponge is in contact with the outer wall of the stretching roller located directly above it.

[0012] As a further description of the above technical solution:

[0013] Multiple fuel supply pipes are fixedly installed in the inner cavity of the fuel tank, and multiple fuel injectors connected to the inner cavity of the fuel supply pipes are fixedly installed on the outer wall of the fuel supply pipes. The bottom of the fuel sponge has multiple fuel inlet holes that are compatible with the fuel injectors, and the end of the fuel injector away from the fuel supply pipe extends into the inner cavity of the fuel inlet hole.

[0014] As a further description of the above technical solution:

[0015] A filter screen for filtering impurities is fixedly installed inside the oil reservoir, and the filter screen is located directly below the oil supply pipe.

[0016] As a further description of the above technical solution:

[0017] A refueling pipe is fixedly installed on the outer wall of the oil tank. The refueling pipe is designed with an L-shaped structure. The outer wall of the oil tank has an installation hole that communicates with its own inner cavity. One end of the refueling pipe passes through the installation hole and extends into the inner cavity of the oil tank.

[0018] As a further description of the above technical solution:

[0019] The top of the refueling hose is detachably fitted with a sealing cap for sealing the inlet.

[0020] This utility model has the following beneficial effects:

[0021] This invention applies oil to the outer wall of the drawing roller using an oiling sponge, and then uses the contact between the drawing roller and the polypropylene staple fiber to oil the polypropylene staple fiber in a stretched state. This can shorten the drying time after oiling the polypropylene staple fiber and improve the production efficiency of polypropylene staple fiber drawing. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present utility model;

[0023] Figure 2 This is an assembly drawing of the oil storage tank and oil supply pipe of this utility model;

[0024] Figure 3 This is an assembly drawing of the drawing roller and oil storage tank of this utility model;

[0025] Figure 4 This is an assembly drawing of the oiling sponge and oil storage tank of this utility model.

[0026] Legend:

[0027] 1. Drafting roller; 2. Oil tank; 3. Oil sponge; 4. Filter screen; 5. Oil spray head; 6. Oil supply pipe; 7. Oil pump; 8. Oil inlet pipe; 9. Sealing cover plate. Detailed Implementation

[0028] 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.

[0029] Reference Figure 1-4 One embodiment of this utility model is a polypropylene staple fiber drawing and oiling device, which includes: multiple drawing rollers 1, an oil storage tank 2 and an oil supply pipe 6.

[0030] Multiple drawing rollers 1 are used to draw polypropylene staple fibers. The polypropylene staple fibers can be stretched to the required fineness and strength by multiple drawing rollers 1. Then, multiple polypropylene staple fibers are combined into a single strand to form a uniform filament bundle (this is existing technology and will not be described in detail here).

[0031] The oil storage tank 2 is detachably installed directly below one of the drawing rollers 1. The open end of the oil storage tank 2 is detachably equipped with an oiling sponge 3 for applying oil to the outer wall of the drawing roller 1 located directly above it. The outer wall of the oiling sponge 3 is in contact with the outer wall of the drawing roller 1 located directly above it. By injecting oil into the oiling sponge 3, the oiling sponge 3 quickly spreads along the oiling sponge 3 and absorbs the oil. As the drawing roller 1 rotates, the oil absorbed by the oiling sponge 3 can be evenly applied to the outer surface of the drawing roller 1. After the polypropylene staple fiber passes through the drawing roller 1 after being coated with oil, the oil adhering to the outer surface of the drawing roller 1 can be evenly applied to the outer surface of the polypropylene staple fiber, thereby performing oiling treatment on the polypropylene staple fiber in a stretched state, reducing the time and effort required for oiling polypropylene staple fiber, and improving the production efficiency of polypropylene staple fiber.

[0032] The curved outer wall of the oiling sponge 3 increases the contact area between the oiling sponge 3 and the outer wall of the drawing roller 1, thereby increasing the oil content on the outer surface of the polypropylene staple fiber and further reducing the frequency of friction and static electricity between the polypropylene staple fibers.

[0033] The outer wall of the oiling sponge 3 and the outer surface of the drafting roller 1 are prone to gaps due to long-term friction, which prevents the oiling sponge 3 from applying oil to the outer wall of the drafting roller 1. To solve the above problem, the oiling sponge 3 and the open end of the oil storage tank 2 are connected by bolts. When the oiling sponge 3 cannot contact the outer wall of the drafting roller 1 and thus cannot apply oil to the outer wall of the drafting roller 1 in time, the bolts can be separated from the oiling sponge 3 to complete the disassembly and replacement of the oiling sponge, which is conducive to the continuous application of oil to the outer wall of the drafting roller 1 through the oiling sponge 3.

[0034] The oil supply pipe 6 is fixedly installed in the inner cavity of the oil storage tank 2, and the oil supply pipe 6 is located directly below the oil sponge 3. The side of the oil supply pipe 6 closest to the oil sponge 3 is fixedly installed with an oil nozzle 5 for supplying oil to the oil sponge 3. The outer wall of the oil storage tank 2 is fixedly installed with an oil pump 7. The oil outlet end of the oil pump 7 is fixedly installed with a conduit. The end of the conduit away from the oil pump 7 extends into the inner cavity of the oil storage tank 2 and is fixedly connected to the outer wall of the oil supply pipe 6. The oil inlet end of the oil pump 7 is fixedly installed with an oil inlet pipe. The end of the oil inlet pipe away from the oil pump 7 extends into the inner cavity of the oil storage tank 2. When it is necessary to apply oil to the oil sponge 3, the oil pump 7 is started, and the oil in the inner cavity of the oil storage tank 2 is transferred to the inner cavity of the conduit through the oil inlet pipe. The oil enters the inner cavity of the oil supply pipe 6 through the conduit. The oil in the inner cavity of the oil supply pipe 6 is sprayed onto the outer surface of the oil sponge 3 through the oil nozzle 5 and quickly diffuses inside the oil sponge, thereby achieving the purpose of continuously supplying oil to the oil sponge 3.

[0035] Multiple oil supply pipes 6 are fixedly installed in the inner cavity of the oil storage tank 2, and multiple oil spray nozzles 5 connected to their own inner cavity are fixedly installed on the outer wall of the oil supply pipes 6. Multiple oil supply pipes 6 and multiple oil spray nozzles 5 can spray oil on different areas of the oil sponge 3 at the same time, increasing the oil supply to the oil sponge 3 and the diffusion rate of the oil inside the oil sponge 3, and preventing some areas of the oil sponge 3 from not being oiled.

[0036] The bottom of the oiling sponge 3 has multiple oil inlet holes that are compatible with the spray nozzle 5. The end of the spray nozzle 5 away from the oil supply pipe 6 extends into the inner cavity of the oil inlet hole. The diameter of the spray nozzle 5 is the same as the diameter of the oil inlet hole. After the spray nozzle 5 is inserted into the inner cavity of the oil inlet hole, the outer wall of the spray nozzle 5 and the inner wall of the oil inlet hole are tightly fitted. This prevents the oil from flowing out of the spray nozzle 5 from not being able to effectively act on the outside of the oiling sponge 3, so that the oil can flow directly into the inside of the oiling sponge 3 and spread quickly along the oiling sponge 3.

[0037] A filter screen 4 for filtering impurities is fixedly installed in the inner cavity of the oil storage tank 2. The filter screen 4 is located directly below the oil supply pipe 6. Since the stretching roller 1 is exposed to the air for a long time, dust in the air easily adheres to the outer surface of the stretching roller 1. When the outer surface of the stretching roller 1 comes into contact with the oil sponge 3, the dust on the outer surface of the stretching roller 1 will adhere to the outer surface of the oil sponge 3 and mix with the internal oil. When the oil sponge 3 is squeezed by the stretching roller 1, the excess oil inside is squeezed out and falls into the inner cavity of the oil storage tank 2. The dust mixed in the oil is trapped on the top of the filter screen 4 when it passes through the filter screen 4, thereby achieving the purpose of filtering the oil and preventing the oil from being contaminated and frequently replaced, thus saving the cost of polypropylene staple fiber production.

[0038] A refueling pipe 8 is fixedly installed on the outer wall of the oil storage tank 2. The refueling pipe 8 is designed with an L-shaped structure. The outer wall of the oil storage tank 2 has an installation hole that communicates with its own inner cavity. One end of the refueling pipe 8 passes through the installation hole and extends into the inner cavity of the oil storage tank 2. The oil required for polypropylene short fiber drawing can be added to the inside of the oil storage tank 2 through the refueling pipe 8, which improves the convenience of adding oil to the inside of the oil storage tank 2.

[0039] The top of the refueling pipe 8 is detachably fitted with a sealing cover 9 for sealing the oil inlet. The sealing cover 9 is connected to the oil inlet of the refueling pipe 8 by thread, thereby sealing the oil inlet of the refueling pipe 8 and preventing dust in the air from entering the oil storage tank 2 through the refueling pipe 8 and causing contamination of the oil.

[0040] 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 device for drawing and oiling staple polypropylene fibers, characterized in that: Comprising A plurality of draft rollers (1) for drafting polypropylene staple fibers; An oil storage tank (2) is detachably mounted immediately below one of the draft rollers (1), and the open end of the oil storage tank (2) is detachably mounted with an oiling sponge (3) for oiling the outer wall of the draft roller (1) located immediately above; An oil supply pipe (6) is fixedly installed in the inner cavity of the oil storage tank (2), and the oil supply pipe (6) is located immediately below the oiling sponge (3), and the side of the oil supply pipe (6) close to the oiling sponge (3) is fixedly installed with a spray head (5) for supplying oil to the oiling sponge (3), and the outer wall of the oil storage tank (2) is fixedly installed with an oil pump (7), and the oil outlet end of the oil pump (7) is fixedly installed with a conduit, and the end of the conduit away from the oil pump (7) extends into the inner cavity of the oil storage tank (2) and is fixedly connected with the outer wall of the oil supply pipe (6), and the oil inlet end of the oil pump (7) is fixedly installed with an oil inlet pipe, and the end of the oil inlet pipe away from the oil pump (7) extends into the inner cavity of the oil storage tank (2).

2. The polypropylene staple draft and oiling device of claim 1, wherein: The outer wall of the oiling sponge (3) is curvedly arranged, and the outer wall of the oiling sponge (3) is attached to the outer wall of the draft roller (1) located immediately above.

3. The polypropylene staple draft and oiling device of claim 1, wherein: A plurality of spray heads (5) are fixedly installed on the outer wall of the oil supply pipe (6), and the bottom of the oiling sponge (3) is provided with a plurality of oil inlet holes matched with the spray heads (5), and the end of the spray head (5) away from the oil supply pipe (6) extends into the inner cavity of the oil inlet hole.

4. The polypropylene staple draft and oiling apparatus of claim 1 wherein: A filter screen (4) for filtering impurities is fixedly installed in the inner cavity of the oil storage tank (2), and the filter screen (4) is located immediately below the oil supply pipe (6).

5. The polypropylene staple draft and oiling apparatus of claim 1 wherein: An oil filling pipe (8) is fixedly installed on the outer wall of the oil storage tank (2), and the oil filling pipe (8) is arranged in an L-shaped structure, and the outer wall of the oil storage tank (2) is provided with a mounting hole communicating with the inner cavity thereof, and one end of the oil filling pipe (8) penetrates through the mounting hole and extends into the inner cavity of the oil storage tank (2).

6. The polypropylene staple draft and oiling device of claim 5, wherein: A sealing cover plate (9) for sealing the oil inlet is detachably mounted on the top of the oil filling pipe (8).

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