Polypropylene staple fiber cutting device

Abstract

The utility model discloses a polypropylene staple fiber cutting device which comprises a winding device and a vertical plate, a conveying device used for conveying polypropylene staple fibers is fixedly installed on one side of the winding device, and a cutting device used for cutting the polypropylene staple fibers is arranged between the winding device and the conveying device. The outer wall of the vertical plate is detachably connected with the moving end of the cutting equipment, a cutting blade is detachably installed on the side, close to the polypropylene staple fibers, of the vertical plate, supporting plates are rotatably installed on the two sides of the vertical plate through torsional springs in the vertical direction, and a smearing roller used for lubricating the polypropylene staple fibers is detachably installed between every two adjacent supporting plates; the polypropylene staple fibers are located between every two adjacent smearing rollers. According to the utility model, through the mutual matching of all the parts, burrs generated during cutting can be reduced, the phenomenon that fibers fly off after the polypropylene fibers are broken can be better avoided, and the influence on the operating environment and the working environment of equipment is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to polypropylene short fiber cutting technical field especially relates to a polypropylene short fiber cutting device. BACKGROUND

[0002] Adopt the polypropylene meal box after consumption as raw material, after professional cleaning, granulation and spinning process, carefully made, this kind of fiber not only reduces the influence of plastic waste on the environment, and has the similar physical property with virgin polypropylene fiber, is a sustainable textile material selection, polypropylene short fiber is the synthetic short fiber made of polypropylene, has light weight, high strength, chemical corrosion resistance and wear resistance etc.

[0003] In order to adapt to different processing needs, improve production efficiency, improve product performance and facilitate transportation and storage, polypropylene short fiber needs to be wound and cut off after winding to a certain extent after spinning, so that the polypropylene short fiber after spinning is more easily stored and transported in batches, the existing polypropylene short fiber is cut by high-speed moving cutting blade, since the polypropylene short fiber has a certain elasticity, rebounding easily occurs during cutting, and burrs are generated at the cutting position, thereby affecting product quality, and the broken fiber may also scatter, affecting equipment and working environment. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a polypropylene short fiber cutting device, which aims at solving the problems in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The polypropylene short fiber cutting device comprises:

[0007] The winding device is used for winding the polypropylene short fiber, one side of the winding device is fixedly provided with a conveying device used for conveying the polypropylene short fiber, and a cutting device used for cutting the polypropylene short fiber is arranged between the winding device and the conveying device;

[0008] The outer wall of the vertical plate is detachably connected with the moving end of the cutting device, and the side of the vertical plate close to the polypropylene short fiber is detachably provided with a cutting blade, the two sides of the vertical plate are rotatably provided with supporting plates along the vertical direction through torsional springs, and adjacent two supporting plates are detachably provided with smearing rollers used for lubricating the polypropylene short fiber, and the polypropylene short fiber is located between adjacent two smearing rollers.

[0009] As a further description of the above technical scheme:

[0010] The outer wall of the support plate is provided with a groove, and a support column is detachably installed in the inner cavity of the groove.

[0011] As a further description of the above technical solution:

[0012] The outer wall of the connecting disc is annularly provided with a plurality of limiting strips, and the inner wall of the mounting hole is annularly provided with a plurality of fixing grooves matched with the limiting strips.

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

[0014] The inner wall of the groove is fixedly provided with a fastening plate limiting the support column, the fastening plate is composed of a metal spring or an elastic plate, and the fastening plate is bent.

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

[0016] The tip of the cutting blade is provided with two flattening plates for flattening the lubricant, the two ends of the flattening plate are fixedly provided with connecting plates, the end of the connecting plate away from the flattening plate is fixedly connected with the outer wall of the cutting blade, the polypropylene short fibers are located between the two flattening plates, and the two flattening plates are located between the smearing roller and the tip of the cutting blade.

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

[0018] The two flattening plates are both inclined to the direction close to the polypropylene short fibers, and the end of the two flattening plates away from the cutting blade is provided in a conical structure.

[0019] The utility model has the advantages of:

[0020] The utility model smears lubricant on the cutting position of the polypropylene short fibers through the smearing roller, can minimize the burrs generated by friction, can improve the adhesion between the polypropylene short fibers by using the lubricant, can better avoid the fiber scattering after the polypropylene fiber is broken, and can reduce the influence on the equipment operation environment and the working environment. DRAWINGS

[0021] Figure 1 It is a perspective view of the utility model;

[0022] Figure 2 It is an assembly drawing of the cutting blade and the smearing roller of the utility model;

[0023] Figure 3 It is an assembly drawing of the cutting blade and the flattening plate of the utility model;

[0024] Figure 4 It is a structure enlarged view of the utility model Figure 2 A structure enlarged view of the utility model

[0025] Figure 5 For the utility model Figure 3 The structure of B in the middle is enlarged.

[0026] Legend:

[0027] 1, winding equipment; 2, vertical plate; 3, cutting blade; 4, support plate; 5, connecting plate; 6, smearing roller; 7, mounting hole; 8, flattening plate; 9, support column; 10, limiting strip; 11, connecting disc; 12, fastening plate. Specific implementation

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] Referring to Figures 1-5 , the utility model provides an embodiment: polypropylene staple cutting device, include: winding equipment 1 and vertical plate 2.

[0030] Among them, through winding equipment 1 can be after production polypropylene staple is rolled up, in order to store and transfer polypropylene staple.

[0031] The side of winding equipment 1 is fixedly installed with conveying equipment for conveying polypropylene staple, the polypropylene staple in winding can be transmitted through the conveying equipment, to prevent the winding and cutting of polypropylene staple from winding, improve the fluency when polypropylene staple is cut and wound.

[0032] Winding equipment 1 and conveying equipment are provided with cutting equipment for cutting polypropylene staple, after polypropylene staple is wound to a certain extent, polypropylene staple can be cut through cutting equipment, in order to batch winding polypropylene staple.

[0033] The moving end of the cutting equipment is detachably connected to the outer wall of the vertical plate 2, and the cutting blade 3 is detachably installed on the side of the vertical plate 2 close to the polypropylene staple. The cutting blade 3 and one side of the vertical plate 2 are connected by screw cooperation, so as to detach the cutting blade 3 from the vertical plate 2. When the tip of the cutting blade 3 is blunt, use the dismounting tool to rotate the screw until the screw is separated from the cutting blade 3, then the cutting blade 3 can be separated from the vertical plate 2, which is conducive to replacing or grinding the blunt cutting blade 3, and improves the fluency of the cutting blade 3 when cutting polypropylene staple.

[0034] The two sides of the vertical plate 2 are rotatably installed with support plates 4 along the vertical direction through torsion springs, one end of the support plate 4 is fixedly installed with a rotating shaft, the outer wall of the rotating shaft is fixedly sleeved with a torsion spring, the other end of the torsion spring is fixedly connected with the outer wall of the vertical plate 2, and the torsion spring converts the elastic potential energy into the power of the rotating shaft when the support plate 4 is in the initial position.

[0035] The adjacent two support plates 4 are detachably installed with smearing rollers 6 for lubricating the polypropylene staple fibers, the polypropylene staple fibers are located between the adjacent two smearing rollers 6, the outer walls of the two smearing rollers 6 are uniformly smeared with lubricants (such as polyether and polyester), when the polypropylene staple fibers need to be cut, the moving end of the cutting device moves the vertical plate 2 to the direction close to the polypropylene staple fibers, with the movement of the two smearing rollers 6, the outer walls of the two smearing rollers 6 simultaneously contact the upper and lower sides of the polypropylene staple fibers, at this time, the two smearing rollers 6 are extruded by the polypropylene staple fibers, and the two support plates 4 simultaneously rotate around the rotating shaft, at this time, the torsion spring is compressed, and the polypropylene staple fibers move to between the two smearing rollers 6 and tightly adhere to the outer walls of the two smearing rollers 6, the two smearing rollers 6 rotate along the tangent direction of the polypropylene staple fibers, the smearing roller 6 uniformly smears the lubricant on the upper and lower sides of the cut part of the polypropylene staple fibers, thereby reducing the friction between the polypropylene staple fibers and the cutting blade 3 when cutting, preventing the polypropylene staple fibers from breaking and wearing when cutting, reducing burrs generated when cutting, avoiding the flying of fibers generated after the polypropylene staple fibers break, reducing the impact on the working environment and the health of the operator.

[0036] When the smearing roller 6 is separated from the outer wall of the polypropylene staple fiber, the torsion spring converts its elastic potential energy into the power of the rotating shaft to reset the support plate 4.

[0037] The outer wall of the support plate 4 is provided with a groove, the inner cavity of the groove is detachably installed with a support column 9, the inner wall of the groove is fixedly installed with a fastening plate 12 for limiting the support column 9, and the outer wall of the support column 9 and the outer wall of the fastening plate 12 are attached after the support column 9 is installed in the groove.

[0038] The fastening plate 12 is composed of a metal spring or an elastic plate, and the fastening plate 12 is bent, when the outer wall of the support column 9 and the outer wall of the fastening plate 12 are attached and extrude the fastening plate 12, the fastening plate 12 deforms, the deformed fastening plate 12 extrudes the outer wall of the support column 9, thereby improving the friction between the fastening plate 12 and the support column 9, preventing the support column 9 from falling off from the groove, and improving the stability of the support column 9.

[0039] One end of the support column 9 is rotatably installed with a connecting disc 11, both ends of the smearing roller 6 are provided with mounting holes 7 matched with the connecting disc 11, the outer wall of the connecting disc 11 is fixedly installed with a plurality of limiting strips 10 in a ring shape, the inner wall of the mounting hole 7 is provided with a plurality of fixed grooves matched with the limiting strips 10 in a ring shape, before the support column 9 is installed into the grooves, the connecting disc 11 is inserted into the mounting hole 7 at both ends of the smearing roller 6, at the same time, the plurality of limiting strips 10 on the outer wall of the connecting disc 11 are inserted into the plurality of fixed grooves, thereby realizing the connection of the connecting disc 11 and the smearing roller 6 and the rotation connection between the smearing roller 6 and the support column 9, then the support column 9 at both ends of the smearing roller 6 is inserted into the adjacent two grooves, thereby realizing the installation of the smearing roller 6.

[0040] When the smearing roller 6 needs to be replaced, the support column 9 is separated from the grooves, then the connecting disc 11 is pulled out from the inner cavity of the mounting hole 7, thereby realizing the replacement of the smearing roller 6.

[0041] The tip of the cutting blade 3 is provided with two flattening plates 8 for flattening the lubricant, both ends of the flattening plate 8 are fixedly installed with a connecting plate 5, one end of the connecting plate 5 away from the flattening plate 8 is fixedly connected with the outer wall of the cutting blade 3, the polypropylene staple fiber is located between the two flattening plates 8, and the two flattening plates 8 are located between the smearing roller 6 and the tip of the cutting blade 3, one end of the flattening plate 8 close to the smearing roller 6 is in contact with the outer wall of the polypropylene staple fiber, after the lubricant is smeared on the outer wall of the polypropylene staple fiber by the smearing roller 6, the flattening plate 8 pushes the lubricant smeared on the outer wall of the polypropylene staple fiber, thereby flattening the lubricant smeared on the outer wall of the polypropylene staple fiber, and the uniformity of the lubricant smearing is further improved.

[0042] Both of the two flattening plates 8 are inclined to the direction close to the polypropylene staple fiber, and one end of the two flattening plates 8 away from the cutting blade 3 is provided in a conical structure, which can effectively reduce the contact area of the flattening plate 8 at the end in contact with the polypropylene staple fiber, reduce the friction between the one end of the flattening plate 8 and the outer wall of the polypropylene staple fiber, and improve the smoothness of the cutting of the polypropylene staple fiber by the cutting blade 3.

[0043] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A device for cutting polypropylene staple fibers, characterized in that Include: A winding device (1) for winding polypropylene staple fibers, a conveying device for conveying polypropylene staple fibers is fixedly installed on one side of the winding device (1), and a cutting device for cutting polypropylene staple fibers is arranged between the winding device (1) and the conveying device; A vertical plate (2) is detachably connected with the outer wall and the moving end of the cutting device, and a cutting blade (3) is detachably installed on the side of the vertical plate (2) close to the polypropylene staple fibers, and the two sides of the vertical plate (2) are rotatably installed with support plates (4) along the vertical direction through torsional springs, and adjacent two support plates (4) are detachably installed with smearing rollers (6) for lubricating polypropylene staple fibers, and the polypropylene staple fibers are located between adjacent two smearing rollers (6).

2. The polypropylene staple cutting device of claim 1, wherein: The outer wall of the support plate (4) is provided with a groove, and a support column (9) is detachably installed in the inner cavity of the groove, and one end of the support column (9) is rotatably installed with a connecting disc (11), and the both ends of the smearing roller (6) are provided with mounting holes (7) matched with the connecting disc (11).

3. The device according to claim 2, wherein: The outer wall of the connecting disc (11) is fixedly installed with a plurality of limiting strips (10) in a ring shape, and the inner wall of the mounting hole (7) is provided with a fixing groove matched with the limiting strip (10) in a ring shape.

4. The device according to claim 3, wherein: The inner wall of the groove is fixedly installed with a fastening plate (12) limiting the support column (9), and the fastening plate (12) is composed of a metal spring or an elastic plate, and the fastening plate (12) is bent.

5. The spandex staple cutting device of claim 1, wherein: The tip of the cutting blade (3) is provided with two flattening plates (8) for flattening the lubricant, and the both ends of the flattening plate (8) are fixedly installed with connecting plates (5), and the end of the connecting plate (5) away from the flattening plate (8) is fixedly connected with the outer wall of the cutting blade (3), and the polypropylene staple fibers are located between the two flattening plates (8), and the two flattening plates (8) are located between the smearing roller (6) and the tip of the cutting blade (3).

6. The spandex staple cutting device of claim 5, wherein: The two flattening plates (8) are both inclined to the direction close to the polypropylene staple fibers, and the end of the two flattening plates (8) away from the cutting blade (3) is provided in a conical structure.

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