Multi-stage fine separation device for plastic particle preparation

Abstract

The utility model relates to the technical field of plastic particle screening, in particular to a multi-stage fine separation device for plastic particle preparation, which comprises fine separation box screen plates longitudinally and uniformly distributed in a fine separation box and composed of a first screen plate and a second screen plate, and a motor drives the first screen plate to turn downwards and simultaneously drives the second screen plate to turn upwards. The fine separation box is provided with a discharging opening, a smooth groove is formed below the discharging opening and is in sliding connection with the gate, a smooth through groove is formed in the front side wall of the fine separation box, and a vertical rack is in sliding connection with the interior of the smooth through groove; the rack is connected with the second gear in a meshed mode, and the gate can vertically slide to shield the discharging opening. According to the utility model, the number of layers of the sieve plates can be accurately controlled, the sieving speed is improved, and the discharge port can be closed during separation of the sieve plates, so that plastic particles are prevented from directly leaving and being discharged without sieving.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic particle screening, in particular to a multistage precision screening device for plastic particle preparation. BACKGROUND

[0002] Plastic particles, also known as plastic particles, are plastic in the form of semi-finished products for storage, transportation and processing, usually made of polymer resin through melting, extrusion, granulation and other processes, with characteristics of light weight, durability and strong plasticity, and the size of the plastic particles after molding varies, so the molded plastic particles need to be screened.

[0003] The existing plastic particle precision screening device generally has multiple layers of sieve plates with different sieve holes to screen plastic particles. During screening, the staff cannot control the sieve plates according to the needs, and must pass through all the sieve plates to distinguish the plastic particles, which not only consumes a lot of time, but also may need to mix the plastic particles that meet the particle size requirements but are screened by different sieve plates during subsequent processing, adding unnecessary operation steps and reducing production efficiency. SUMMARY

[0004] The utility model aims at providing a multistage precision screening device for plastic particle preparation to solve the problems raised in the background.

[0005] To solve the above technical problems, the utility model is realized by the following technical scheme:

[0006] The utility model relates to a multistage precision screening device for plastic particle preparation, which comprises a precision screening box, an inlet pipe and a discharge pipe above and below the precision screening box, a sieve plate, which is longitudinally and uniformly distributed in the precision screening box and consists of a first sieve plate and a second sieve plate, when the first sieve plate and the second sieve plate are combined, the first sieve plate and the second sieve plate form an inclined sieve plate, the higher end of the first sieve plate and the lower end of the second sieve plate are respectively provided with a rotating shaft hinged to the side wall of the precision screening box, two pulleys are provided in front of the sieve plate and connected to the rotating shafts on the sides of the first sieve plate and the second sieve plate, the pulleys are connected by a belt, a motor is provided in front of the precision screening box to drive the pulleys, the motor drives the first sieve plate to flip downward and the second sieve plate to flip upward at the same time, forming a space between the first sieve plate and the second sieve plate for the plastic particles to pass through, controlling the number of sieve plates for screening plastic particles, a gate, the precision screening box is provided with a discharge port, a smooth groove is provided below the discharge port and connected to the gate, a smooth groove is provided in the front side wall of the precision screening box and connected to a vertical rack inside the smooth groove, the rack is connected to a gear wheel II, the gate can vertically slide to block the discharge port, preventing the plastic particles from passing through the discharge port and directly discharging outside the precision screening box when passing through the channel formed between the first sieve plate and the second sieve plate.

[0007] Further, the front side of the fine classification box is rotationally connected with two rotating shafts provided with pulleys two, the pulleys two are connected through a belt, one of the pulleys two and the rotating shaft in front of the front side of the second classification screen are provided with two meshing gears one, the rotating shaft provided with the other pulley two is coaxially fixed with the rotating shaft rotationally connected in the fine classification box, and the gears two are coaxially fixed with the rotating shaft.

[0008] Further, the fine classification box is provided with a guide plate located above the screen plate, the guide plate is an inclined plate body mechanism and forms an opening in the lower part, and is used for guiding the plastic particles to the upper end area of the second classification screen to form a sufficient filtering effect.

[0009] Further, the left side of the fine classification box is provided with a discharge hopper matched with the discharge port.

[0010] Further, the screen holes of the screen plate are different in diameter and the diameters of the screen holes decrease from top to bottom.

[0011] The utility model has the following beneficial effects:

[0012] The utility model discloses a first classification screen and a second classification screen form an inclined screen plate to filter plastic particles, the driving motor can drive the first classification screen to overturn downwards and drive the second classification screen to overturn upwards at the same time, a larger space for the plastic particles to pass through is formed between the first classification screen and the second classification screen, the number of layers of the screen plate filtering the plastic particles is adjusted, the number of layers of the screen plate screening the plastic particles is accurately controlled, the screening rate and the controllability of the screen plate are improved, the motor drives the second classification screen to overturn and also drives the gear two to rotate, so that the rack drives the gate to move upwards and shields the discharge port, the plastic particles are prevented from being discharged from the fine classification box through the discharge port without being filtered by the screen plate, and the plastic particles cannot be screened.

[0013] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0015] Figure 1 It is a sectional view structural schematic diagram of the utility model;

[0016] Figure 2 It is a whole appearance structural schematic diagram of the utility model;

[0017] Figure 3 Part structure schematic view of the utility model;

[0018] Figure 4 Fine division box section structure schematic view of the utility model;

[0019] In the drawings, the component list represented by each sign is as follows:

[0020] In the drawings: 1, fine division box; 101, feed pipe; 102, discharge pipe; 2, motor; 3, sieve plate one; 4, sieve plate two; 5, pulley one; 6, pulley two; 7, sieve plate; 8, rotating shaft; 9, rack; 10, smooth slot; 1001, smooth through slot; 11, guide plate; 12, discharge port; 13, gear one; 14, gear two; 15, gate. Specific implementation

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] In the description of the utility model, it is understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, only for the convenience of describing the utility model and simplifying the description, not indicating or implying that the indicated components or elements must have a particular orientation, structure and operation, therefore, it cannot be understood as the limitation of the utility model.

[0023] Please refer to Figures 1-4As shown, the utility model is a kind of plastic particle preparation multistage fine division device, including fine division box 1 and the feed pipe 101 and discharge pipe 102 above and below it, sieve plate 7, longitudinal uniform distribution in fine division box 1, by sieve plate one 3 and sieve plate two 4 are formed, when sieve plate one 3 and sieve plate two 4 are combined, sieve plate one 3 and sieve plate two 4 form the sieve plate 7 of inclination, the higher end of sieve plate one 3 and the lower end of sieve plate two 4 two sides are equipped with the hinge joint of pivot with the side wall of fine division box 1, two pulleys one 5 are equipped with the pivot connection of the side of sieve plate one 3 and sieve plate two 4 respectively in front of sieve plate 7, pulley one 5 is connected by belt, motor 2 is equipped in front of fine division box 1 for driving pulley one 5, by motor 2 drive sieve plate one 3 overturns downwards simultaneously drive sieve plate two 4 overturns upwards, make the space between sieve plate one 3 and sieve plate two 4 for the space that plastic particle passes, control the layer number of sieve plate 7 for screening plastic particle, gate 15, fine division box 1 is equipped with discharge port 12, discharge port 12 is equipped with smooth groove 10 and gate 15 sliding connection under, the front side wall of fine division box 1 is equipped with smooth through slot 1001 and the vertical rack 9 slidingly connected in smooth through slot 1001, rack 9 is engaged with gear two 14, gate 15 can vertically slide and shield discharge port 12, prevent plastic particle when passing the channel formed between sieve plate one 3 and sieve plate two 4 directly by discharge port 12 and be discharged to fine division box 1 outside.

[0024] Wherein, the front side of fine division box 1 is rotatably connected with two pivots on which pulleys two 6 are installed, the pulleys two 6 are connected by a belt, two gear one 13 are arranged on the front side of the pivot of one pulley two 6 and sieve plate two 4, the pivot on which the other pulley two 6 is installed is coaxially fixed with the rotating shaft 8 rotatably connected in fine division box 1, the gear two 14 is coaxially fixed with the rotating shaft 8, the cooperation of the pulleys two 6, the gear one 13 and the rotating shaft 8 enables the motor to synchronously drive the gate 15 to rise when working, reduces the operation steps and improves the processing rate.

[0025] Wherein, the guide plate 11 is arranged in fine division box 1 and located above the sieve plate 7, the guide plate 11 is an inclined plate body mechanism and forms an opening at the lower side, is used for guiding the plastic particles to the upper end region of the sieve plate two 4 to form sufficient filtering effect, the guide plate 11 guides the plastic particles, so that the plastic particles fall at the higher end of the sieve plate 7, the plastic particles roll along the sieve plate 7 and cover the sieve plate 7, which can improve the screening rate.

[0026] Wherein, the left side of the fine division box 1 is provided with a discharge hopper matched with the discharge port 12.

[0027] Wherein, the sieve holes of the sieve plate 7 are different in diameter and the diameters of the sieve holes decrease from top to bottom.

[0028] It can be understood that the utility model can accurately control the number of layers of the screen plate 7, improve the screening rate, and secondly, when the screen plate 7 is separated, the discharge port 12 is closed to prevent the plastic particles from directly leaving and discharging without screening.

[0029] The operation process of the embodiment has a specific application: the user can control which screen plate 7 can screen the plastic particles according to the particle size screening requirements of the plastic particles, when the screen plate 7 is adjusted, the driving motor drives the two pulleys one 5 to rotate to drive the screen plate one 3 to overturn downward and the screen plate two 4 to overturn upward, so that a space is generated between the screen plate one 3 and the screen plate two 4, the plastic particles in the fine screening box 1 directly fall downward without passing through the layer of screen plate 7, the number of layers of the screen plate 7 for screening the plastic particles is accurately controlled, the screening efficiency is improved, the screen plate two 4 overturns downward at the same time, and the gear two 14 is driven to rotate through the transmission effect between the gear one 13 and the pulley two 6, the gear two 14 drives the rack 9 to move upward to drive the gate 15 to move upward to block the discharge port 12, so that the plastic particles are prevented from directly discharging from the discharge port 12 without passing through the screen plate 7 to discharge the fine screening box 1, after the adjustment is completed, the plastic particles are put into the fine screening box 1 through the feeding pipe 101 to be screened by the screen plate 7 composed of the screen plate one 3 and the screen plate two 4, the plastic particles roll to the higher end of the screen plate one 3 under the guidance of the guide plate 11, the plastic particles roll along the inclined screen plate one 3 and the screen plate two 4, and the screen plate 7 is fully utilized.

[0030] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details, and the utility model is limited to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The embodiments are selected and described in the specification in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A multi-stage precision classification device for preparing plastic particles, comprising a precision classification box (1) and a feed pipe (101) and a discharge pipe (102) above and below the precision classification box (1), characterized in that: a screen plate (7) is longitudinally and uniformly distributed in the precision classification box (1) and is composed of a first screen plate (3) and a second screen plate (4); when the first screen plate (3) and the second screen plate (4) are combined, the first screen plate (3) and the second screen plate (4) form an inclined screen plate (7); the higher end of the first screen plate (3) and the lower end of the second screen plate (4) are respectively provided with rotating shafts hinged to the side walls of the precision classification box (1); two pulleys (5) are arranged in front of the screen plate (7) and are respectively connected to the rotating shafts on the sides of the first screen plate (3) and the second screen plate (4); the pulleys (5) are connected by a belt; a motor (2) is arranged on the front side of the precision classification box (1) to drive the pulleys (5); the first screen plate (3) is driven to flip downward by the motor (2) while the second screen plate (4) is driven to flip upward, so that a space is formed between the first screen plate (3) and the second screen plate (4) for the plastic particles to pass through; and the number of layers of the screen plate (7) for classifying the plastic particles is controlled. A gate (15) is arranged in the precision classification box (1); a discharge port (12) is arranged in the precision classification box (1); a smooth groove (10) is arranged below the discharge port (12) and is slidably connected to the gate (15); a smooth through groove (1001) is arranged in the front side wall of the precision classification box (1) and is slidably connected to a vertical rack (9) arranged in the smooth through groove (1001); the rack (9) is meshingly connected to a gear (14); and the gate (15) can vertically slide to shield the discharge port (12) to prevent the plastic particles from being directly discharged outside the precision classification box (1) through the discharge port (12) when passing through the channel formed between the first screen plate (3) and the second screen plate (4). The front side of the precision classification box (1) is rotatably connected to rotating shafts on which pulleys (6) are arranged; the pulleys (6) are connected by a belt; two meshingly connected gears (13) are arranged in front of the rotating shafts on the front side of the second screen plate (4) and one of the pulleys (6); the rotating shaft on which the other pulley (6) is arranged is coaxially fixed to a rotating shaft (8) rotatably arranged in the precision classification box (1); and the gear (14) is coaxially fixed to the rotating shaft (8).

2. The apparatus for preparing multi-stage fine classification of plastic particles according to claim 1, characterized in that: A guide plate (11) is arranged in the precision classification box (1) and above the screen plate (7); the guide plate (11) is an inclined plate body mechanism and has an opening formed below to guide the plastic particles to the upper end region of the second screen plate (4) to form a sufficient filtering effect.

3. The apparatus according to claim 1, wherein the apparatus is a multi-stage precision classification device for plastic particles. A discharge hopper is arranged on the left side of the precision classification box (1) and cooperates with the discharge port (12).

4. The apparatus according to claim 1, wherein: The screen plate (7) has different screen hole diameters which decrease from top to bottom.

5. The apparatus according to claim 1, wherein: ​

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