Polypropylene staple fiber crimping equipment

Abstract

The utility model discloses polypropylene staple fiber curling equipment which comprises a processing table, two vertical plates and two water pipes, the top of the processing table is fixedly provided with the curling equipment used for curling polypropylene staple fibers, the bottoms of the two vertical plates are fixedly connected with the top of the processing table, two feeding rollers are rotationally installed between the two vertical plates, and the two feeding rollers are fixedly connected with the processing table. The two feeding rollers are detachably sleeved with wet sponges, the two water pipes are arranged outside the two feeding rollers respectively, the two feeding rollers are located between the two water pipes, the two water pipes are fixedly provided with a plurality of water supply heads communicated with inner cavities of the water pipes in the longitudinal direction, one ends of the two water pipes are connected through a guide pipe, and the other ends of the two water pipes are connected through a guide pipe. The outer wall of the guide pipe is fixedly provided with a conveying pipe used for supplying water to the guide pipe. According to the utility model, the polypropylene staple fibers can be softened in advance through the mutual matching of the parts, so that the polypropylene staple fibers are not easy to break or damage when being curled, and the yield of products can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to polypropylene short fiber technology field especially relates to a polypropylene short fiber crimping equipment. BACKGROUND

[0002] Fiber crimping refers to the bending or wavy shape of fiber in natural state or processing, and the application of fiber crimping is relatively wide and important in the secondary production after the consumption of polypropylene short fiber, and this crimping characteristic has important influence on the performance and application of fiber, especially in the fields of textile, composite material and nonwoven fabric.

[0003] In the crimping process of polypropylene short fiber, the polypropylene short fiber is continuously conveyed to the crimping equipment and continuously moves in the crimping equipment, the polypropylene short fiber is heated to soften when passing through the heating device, the softened polypropylene short fiber is crimped through the mechanical device (such as gear or roller), and the crimped polypropylene short fiber is shaped through the cooling device (such as air cooling or cooling roller), so that the crimping of the polypropylene short fiber is completed.

[0004] Because the polypropylene short fiber is easy to be brittle, the outermost short fiber contacts the crimping roller and is driven by the crimping roller, the relative sliding occurs between the outermost short fiber and the inner short fiber, the direction of force of the short fiber changes in the crimping process, and then the uneven crimping or the breakage of the polypropylene short fiber occurs, so that the strength of the crimped polypropylene short fiber is different and the elastic performance of the short fiber after crimping is affected. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a polypropylene short fiber crimping equipment, which aims at improving the problems in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The polypropylene short fiber crimping equipment comprises:

[0008] A processing table is fixedly installed at the top and is used for crimping the polypropylene short fiber;

[0009] Two vertical plates are fixedly connected at the bottom and the top of the processing table, two feeding rollers are rotatably installed between the two vertical plates, and the outer part of each feeding roller is detachably sleeved with a wet sponge;

[0010] Two water pipes are arranged outside the two feeding rollers, the two feeding rollers are located between the two water pipes, a plurality of water supply heads are fixedly installed on the two water pipes along the longitudinal direction and are communicated with the inner cavities of the two water pipes, one end of the two water pipes is connected with each other through a conduit, and the outer wall of the conduit is fixedly installed with a transmission pipe for supplying water.

[0011] Further description of the above technical scheme:

[0012] A water storage tank is fixedly installed between the two uprights. The top of the water storage tank has an open structure. A water pump for water transfer is fixedly installed inside the water storage tank. The outlet end of the water pump is fixedly connected to the end of the transfer pipe away from the conduit.

[0013] As a further description of the above technical solution:

[0014] The wet sponge is designed with a tubular structure, and the length of the wet sponge is the same as the length of the feeding roller.

[0015] As a further description of the above technical solution:

[0016] A baffle plate is installed between the two feeding rollers and the water pipe. The outer wall of the baffle plate and the outer wall of the wet sponge are in contact with each other, and the outer wall of the baffle plate is curved. The outer walls of the two baffle plates are provided with multiple through holes that are compatible with the water supply head. The end of the water supply head away from the water pipe extends into the inner cavity of the through hole.

[0017] As a further description of the above technical solution:

[0018] A filter screen for filtering impurities in the water is fixedly installed inside the water tank, and the water pump is located directly above the filter screen.

[0019] As a further description of the above technical solution:

[0020] Two through holes are opened on the outer walls of the two upright plates. A rotating shaft is fixedly installed at both ends of the two feeding rollers. The end of the rotating shaft away from the feeding roller passes through the rotating shaft and extends to the other side of the upright plate. A drive wheel is fixedly installed at the end of the two adjacent rotating shafts away from the feeding rollers. Two tensioning wheels are symmetrically installed on the side of the upright plate near the drive wheel. A tensioning belt is sleeved between the two tensioning wheels and one of the drive wheels. The outer wall of the other drive wheel is rotatably connected to the outer wall of the tensioning belt. A drive motor is fixedly installed on the side of one of the upright plates near the tensioning wheel. The power output end of the drive motor is fixedly connected to one end of one of the drive wheels.

[0021] This utility model has the following beneficial effects:

[0022] This invention uses a wet sponge to wrap the outer wall of polypropylene staple fiber, thereby wetting the passing polypropylene staple fiber. This not only softens the polypropylene staple fiber, but also increases the adhesion between the polypropylene staple fibers, making it less likely for adjacent polypropylene staple fibers to slide relative to each other. At the same time, the softened polypropylene staple fiber is more flexible, making it less likely to break or be damaged when curled, thus improving the product yield. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present utility model;

[0024] Figure 2 This is an assembly drawing of the coiling device and water storage tank of this utility model;

[0025] Figure 3 This is an assembly drawing of the water storage tank and the wet sponge of this utility model;

[0026] Figure 4 This is an assembly drawing of the baffle plate and water pump of this utility model;

[0027] Figure 5 This is an assembly drawing of the wet sponge and feeding roller of this utility model;

[0028] Figure 6 This utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0029] Legend:

[0030] 1. Processing table; 2. Curling equipment; 3. Water tank; 4. Wet sponge; 5. Vertical plate; 6. Filter screen; 7. Water baffle; 8. Water pipe; 9. Drive wheel; 10. Tensioning wheel; 11. Feeding roller. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1-6 One embodiment of this utility model is a polypropylene staple fiber crimping device, comprising: a processing table 1, a vertical plate 5, and a water pipe 8.

[0033] The processing table 1 is fixedly equipped with a curling device 2 for curling polypropylene staple fibers. After the polypropylene staple fibers enter the inner cavity of the curling device 2, they are first softened by a heating device. The softened polypropylene staple fibers are then curled by a mechanical device. After the curled polypropylene staple fibers are cooled and shaped, the final shaping is completed (this is existing technology and will not be described in detail here).

[0034] Two vertical plates 5 are provided, with their bottoms fixedly connected to the top of the processing table 1. Two feeding rollers 11 are rotatably installed between the two vertical plates 5. Wet sponges 4 are detachably sleeved on the outside of both feeding rollers 11. Before the polypropylene short fiber enters the inside of the crimping device 2, it first passes between the two feeding rollers 11. At this time, the outer surface of the polypropylene short fiber and the two wet sponges 4 squeeze the polypropylene short fiber. After being squeezed, the outer surface of the wet sponge 4 collapses, thus wrapping the outer surface of the polypropylene short fiber. This increases the friction between the outer surface of the polypropylene short fiber and the outer wall of the wet sponge 4. When the two feeding rollers 11 rotate in opposite directions along their own axes, they can provide power for the transmission of the polypropylene short fiber, improving the stability of the polypropylene short fiber when it enters the inside of the crimping device 2.

[0035] There are two water pipes 8, each located outside one of the two feeding rollers 11. The two feeding rollers 11 are situated between the two water pipes 8. Multiple water supply heads connected to the inner cavity of each water pipe 8 are fixedly installed along the longitudinal direction. One end of each water pipe 8 is connected to the other via a conduit. A transmission pipe for supplying water to itself is fixedly installed on the outer wall of the conduit. A water storage tank 3 is fixedly installed between the two vertical plates 5. A water pump for water transmission is fixedly installed inside the water storage tank 3. The outlet of the water pump is fixedly connected to the end of the transmission pipe furthest from the conduit. When the polypropylene staple fiber moves between the two wet sponges 4, the water pump is activated, thus filling the water storage tank. Water in the inner cavity 3 enters the interior of the conduit through the transmission pipe, and then is transmitted to the inner cavity of the two water pipes 8 through the conduit. The water inside the two water pipes 8 is sprayed onto the outside of the two wet sponges 4 through multiple water supply heads. The wet sponges 4 absorb the water, thereby wetting the moving polypropylene staple fiber. The wetted polypropylene staple fiber is softened, which reduces the friction between it and the crimping device 2, making it easier to form a crimp through the mechanical device. At the same time, the softened polypropylene staple fiber is more flexible, making it less likely to break or be damaged during crimping. This increases the strength and elasticity of the crimped polypropylene staple fiber, prevents defects in the crimped polypropylene staple fiber, and improves product quality.

[0036] The top of the water storage tank 3 is an open structure. The two wet sponges 4 will inevitably be squeezed under the relative rotation of the feeding roller 11. The water inside the squeezed wet sponges 4 is squeezed out and falls into the inner cavity of the water storage tank 3 under the action of gravity, thereby collecting and reusing the water and reducing the waste of water resources.

[0037] The wet sponge 4 is configured as a tubular structure, and the length of the wet sponge 4 is the same as the length of the feeding roller 11, which can ensure that the wet sponge 4 is always in contact with the outer surface of the polypropylene short fiber when the feeding roller 11 rotates, and can continuously wet the polypropylene short fiber.

[0038] A baffle plate 7 is provided between the two feeding rollers 11 and the water pipes 8. The outer wall of the baffle plate 7 and the outer wall of the wet sponge 4 are in contact with each other. The two ends of the baffle plate 7 are fixedly connected to the adjacent side of the two upright plates 5 respectively. The baffle plate 7 can be supported by the two upright plates 5, and the two water pipes 8 can be supported by the baffle plate 7, which improves the stability of the two water pipes 8.

[0039] The outer wall of the baffle plate 7 is curved, and the outer walls of both baffle plates 7 are provided with multiple through holes that are compatible with the water supply head. The end of the water supply head away from the water pipe 8 and the inner cavity extending into the through hole are provided. The baffle plate 7 can effectively prevent water from splashing when it sprays out from the water supply head, so that the water in the water pipe 8 can be completely absorbed by the wet sponge 4.

[0040] A filter screen 6 for filtering impurities in the water is fixedly installed in the inner cavity of the water storage tank 3. When the polypropylene short fiber passes directly above the water storage tank 3, the dust and impurities on the outer surface of the polypropylene short fiber are easily dropped into the inner cavity of the water storage tank 3 due to the friction between the polypropylene short fiber and the wet sponge 4. At this time, the filter screen 6 will intercept the dropped dust to prevent the dust from mixing with the water in the water storage tank 3 and becoming contaminated.

[0041] The water pump is located directly above the filter screen 6, which facilitates the removal of the water pump from the water tank 3 and makes it easier to replace and maintain the water pump.

[0042] Two through holes are provided on the outer walls of the two vertical plates 5. A rotating shaft is fixedly installed at both ends of the two feeding rollers 11. The end of the rotating shaft away from the feeding roller 11 passes through the rotating shaft and extends to the other side of the vertical plate 5. A drive wheel 9 is fixedly installed at the end of the two adjacent rotating shafts away from the feeding roller 11. Two tensioning wheels 10 are symmetrically installed on the side of the vertical plate 5 near the drive wheel 9. A tensioning belt is sleeved between the two tensioning wheels 10 and one of the drive wheels 9. The outer wall of the other drive wheel 9 is rotatably connected to the outer wall of the tensioning belt. When one drive wheel 9 rotates, the two tensioning wheels 10 can rotate accordingly. At the same time, the other drive wheel 9 rotates in the opposite direction, thereby realizing the synchronous reverse rotation of the two feeding rollers 11.

[0043] One of the vertical plates 5 is fixedly mounted with a drive motor on the side near the tensioning wheel 10. The power output end of the drive motor is fixedly connected to one end of one of the drive wheels 9. When the drive motor is started, it can provide power to the drive wheel 9 connected to it, which improves the convenience of rotating the two feeding rollers 11.

[0044] 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 polypropylene staple crimping apparatus characterized by, The utility model relates to a polypropylene staple crimping device, including: Processing platform (1), top fixed mounting is used to the crimping equipment (2) for polypropylene staple crimping; Two vertical boards (5), bottom and the top of processing platform (1) fixed connection, two vertical boards (5) between rotatory mounting has two feeding rollers (11), two feeding rollers (11) outside can be detachably sheathed with wet water sponge (4); Two water pipes (8) are arranged outside the two feeding rollers (11), and the two feeding rollers (11) are located between the two water pipes (8). The two water pipes (8) are fixedly installed along the longitudinal direction and are communicated with the water supply heads in the cavities of the two water pipes (8). One end of the two water pipes (8) is connected to each other through a conduit, and the outer wall of the conduit is fixedly installed with a transmission pipe for supplying water.

2. The polypropylene staple crimping apparatus of claim 1, wherein: The water storage tank (3) is fixedly installed between the two vertical boards (5). The top of the water storage tank (3) is of an open structure. A water pump for water transmission is fixedly installed in the cavity of the water storage tank (3). The water outlet of the water pump is fixedly connected to the end of the transmission pipe away from the conduit.

3. The polypropylene staple crimping apparatus of claim 1, wherein: The wet water sponge (4) is in a tubular structure, and the length of the wet water sponge (4) is the same as the length of the feeding roller (11).

4. The polypropylene staple crimping apparatus of claim 1, wherein: A water baffle (7) is arranged between the two feeding rollers (11) and the water pipe (8). The outer wall of the water baffle (7) is in close contact with the outer wall of the wet water sponge (4). The outer wall of the water baffle (7) is curved. A plurality of through holes are formed in the outer wall of each water baffle (7) and are matched with the water supply heads. The end of the water supply head away from the water pipe (8) extends into the cavity of the through hole.

5. The polypropylene staple crimping apparatus of claim 2, wherein: A filter screen (6) for filtering impurities in water is fixedly installed in the cavity of the water storage tank (3). The water pump is located directly above the filter screen (6).

6. The polypropylene staple crimping apparatus of claim 5, wherein: Two insertion holes are formed in the outer wall of each vertical board (5). A rotating shaft is fixedly installed at each end of the two feeding rollers (11). The end of the rotating shaft away from the feeding roller (11) penetrates the rotating shaft and extends to the other side of the vertical board (5). The end of each adjacent rotating shaft away from the feeding roller (11) is fixedly installed with a driving wheel (9). Two tensioning wheels (10) are symmetrically installed on the side of the vertical board (5) close to the driving wheel (9). A tensioning belt is sleeved between the two tensioning wheels (10) and one of the driving wheels (9). The outer wall of the other driving wheel (9) is rotatably connected to the outer wall of the tensioning belt. A driving motor is fixedly installed on the side of one of the vertical boards (5) close to the tensioning wheel (10). The power output end of the driving motor is fixedly connected to one end of one of the driving wheels (9).

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