Winnowing machine

Abstract

The utility model relates to the field of plastic processing, and discloses a winnowing machine which comprises a base, the top of the base is fixedly connected with a winnowing box, the top of the winnowing box is provided with a sealing cover, the top of the sealing cover is provided with a feeding mechanism, one end of the top of an inner cavity of the winnowing box is fixedly connected with an air guide seat, and the other end of the top of the inner cavity of the winnowing box is provided with a feeding mechanism. According to the winnowing machine, an air blower and a motor are started, plastic particles are guided into the winnowing box through a feeding mechanism, under the action of wind power and the air guide bases, the plastic particles are blown to crushing blades rotating on the rotating shaft to be collided and crushed, and then the plastic particles are crushed. And the crushed particles are moved to the second air guide base in the direction of the rotating shaft to be matched with wind power to be discharged and recycled from the discharging opening, the particles can be continuously crushed and discharged without stopping feeding, and the problem that an existing winnowing machine is difficult to rapidly and continuously crush and winnow the plastic particles is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic processing, and specifically relates to an air classifier. Background Technique

[0002] An air classifier is also called an air classification crusher. It consists of devices such as coarse crushing, fine crushing, and pneumatic conveying, and uses the form of high-speed impact to achieve the purpose of crushing. It can form powder in one step using wind energy. The crushing process of plastic particles requires the help of an air classifier.

[0003] The patent with the publication number of CN 218308266 U discloses an air classifier for plastic particles. It includes an L-shaped machine shell. A hopper penetrates and is fixedly connected to the top of the L-shaped machine shell. A first rotating motor is fixedly connected to the rear end position on the right side of the top of the L-shaped machine shell. A second rotating motor is fixedly connected to the central position on the left side of the bottom of the L-shaped machine shell. This device first drives the cutting blades to rotate at a high speed through the second rotating motor to cut the plastic more thoroughly. The obtained particle size difference is relatively small, and compared with using the high rotational speed of wind power for crushing, its energy consumption is lower and the output is larger. However, this device is to introduce the plastic particles to be air-classified from the feed hopper into the L-shaped machine shell, and use the dispersion effect of the stirring rod to cooperate with the cutting blades to cut and refine the plastic. However, when wanting to blow the crushed particles into the storage box, it is necessary to stop the crushing of the plastic particles and then start the centrifugal blower. If the addition of particles is not stopped and directly under the action of wind power, it is difficult for the plastic particles to be blown into the storage box while ensuring the crushing effect, thus affecting the crushing and air-classifying effect of the plastic particles. Therefore, an air classifier is proposed to solve the problem that the existing air classifier is difficult to quickly and continuously crush and air-classify plastic particles. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides an air classifier to solve the above problems.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solutions: An air separator, including a base, a top of the base is fixedly connected with an air separation box, a top of the air separation box is provided with a sealing cover, a top of the sealing cover is provided with a feeding mechanism, a top end of an inner cavity of the air separation box is fixedly connected with a wind guiding seat, a bottom end of an inner cavity of the air separation box is fixedly connected with a second wind guiding seat, a rotating shaft is arranged in the inner cavity of the air separation box, a crushing blade is fixedly connected to an outer ring of the rotating shaft, a motor is fixedly connected to a back surface of the air separation box, a discharge port is opened on the back surface of the air separation box, a screening box is arranged on the top of the base, a sieve mesh is fixedly connected to a middle part of the screening box, a blower is fixedly connected to a front surface of the air separation box, and a scraping mechanism is arranged on the top of the screening box.

[0008] Preferably, the rotating shaft is arranged in the air separation box at a certain inclination angle, when the crushing blade rotates, wind force along the direction of the rotating shaft will be generated, and an output shaft of the motor is fixedly connected with the rotating shaft.

[0009] Preferably, the discharge port communicates with the screening box, the blower communicates with the air separation box, and a height of an air discharge port of the blower in the air separation box is lower than a topmost part of an arc-shaped groove of the wind guiding seat.

[0010] Preferably, the feeding mechanism is composed of a feeding hopper, an adjusting conical cylinder, a fixing plate and an adjusting screw rod. The feeding hopper penetrates through the sealing cover and communicates with an inner cavity of the air separation box, and the adjusting conical cylinder is arranged at a bottom part of the inner cavity of the feeding hopper.

[0011] Preferably, the feeding hopper is fixedly connected with the fixing plate at the top, the adjusting screw rod is threadedly connected to a middle part of the fixing plate, and a bottom end of the adjusting screw rod is fixedly connected with the adjusting conical cylinder.

[0012] Preferably, the scraping mechanism is composed of an electric push rod, a scraping plate, a groove, a collection box, a handle and a partition plate. The electric push rod is fixed on the top of the screening box, and the scraping plate penetrates through the screening box and fits with the sieve mesh.

[0013] Preferably, the groove is opened on one side of the base, the groove communicates with the screening box and a collection box is arranged in the inner cavity, a handle is fixedly connected to one side of the collection box, and a partition plate is fixedly connected to the inner cavity of the collection box and is located directly below the sieve mesh.

[0014] (III) Beneficial effects

[0015] 1. For this air classifier, when the blower and the motor are turned on, plastic particles are introduced into the air separation box by the feeding mechanism. Under the action of wind force and the air guiding seat, the plastic particles are blown towards and hit the rotating crushing blades on the rotating shaft for crushing. The crushed particles move along the direction of the rotating shaft to the second air guiding seat, and cooperate with the wind force to discharge and recycle the crushed particles from the discharge port. It is possible to continuously crush and discharge the particles without stopping the feeding, solving the problem that the existing air classifier is difficult to quickly and continuously crush air-separated plastic particles.

[0016] 2. For this air classifier, when adding plastic particles into the air separation box by the feeding mechanism, the adjusting screw on the rotatable fixing plate can be rotated to drive the adjusting cone barrel to move up and down, so as to adjust the opening size at the bottom of the feeding hopper, achieving the purpose of controlling the feeding speed and facilitating better crushing of plastic particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model;

[0018] Figure 2 It is a structural sectional view of the present utility model;

[0019] Figure 3 It is a structural diagram of the feeding mechanism of the present utility model;

[0020] Figure 4 It is the structure of the present utility model Figure 2 The enlarged view at A in the figure.

[0021] In the figure: 1. Base; 2. Air separation box; 3. Sealing cover; 4. Feeding mechanism; 41. Feeding hopper; 42. Adjusting cone barrel; 43. Fixing plate; 44. Adjusting screw; 5. Air guiding seat; 6. Second air guiding seat; 7. Rotating shaft; 8. Crushing blades; 9. Motor; 10. Discharge port; 11. Screening box; 12. Screen; 13. Blower; 14. Scraping mechanism; 141. Electric push rod; 142. Scraper; 143. Groove; 144. Collection box; 145. Handle; 146. Partition board. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment: Please refer to Figures 1-4, An air classifier, comprising a base 1, a top of the base 1 is fixedly connected with an air separation box 2, a top of the air separation box 2 is provided with a sealing cover 3, a top of the sealing cover 3 is provided with a feeding mechanism 4, one end of a top inner cavity of the air separation box 2 is fixedly connected with a wind guiding seat 5, one end of a bottom inner cavity of the air separation box 2 is fixedly connected with a second wind guiding seat 6, a rotating shaft 7 is arranged in the inner cavity of the air separation box 2, an outer ring of the rotating shaft 7 is fixedly connected with crushing blades 8, a back of the air separation box 2 is fixedly connected with a motor 9, a discharge port 10 is formed in the back of the air separation box 2, a top of the base 1 is provided with a screening box 11, a middle part of the screening box 11 is fixedly connected with a screen 12, a front of the air separation box 2 is fixedly connected with a blower 13, and a top of the screening box 11 is provided with a scraping mechanism 14.

[0024] Further, the rotating shaft 7 is arranged in the air separation box 2 at a certain inclination angle. When the crushing blades 8 rotate, wind force along the direction of the rotating shaft 7 will be generated. An output shaft of the motor 9 is fixedly connected with the rotating shaft 7.

[0025] Further, the discharge port 10 communicates with the screening box 11, the blower 13 communicates with the air separation box 2, a height of an air outlet of the blower 13 in the air separation box 2 is lower than a top of a top arc groove of the wind guiding seat 5. Plastic particles are introduced into the air separation box 2 by the feeding mechanism 4. Under the action of wind force and the wind guiding seat 5, the plastic particles are blown to impact and break against the rotating crushing blades 8 on the rotating shaft 7. The broken particles move along the direction of the rotating shaft 7 to the second wind guiding seat 6 and cooperate with the wind force to discharge and recycle the broken particles from the discharge port 10, and the particles can be continuously broken and discharged without stopping the feeding.

[0026] Further, the feeding mechanism 4 is composed of a feeding hopper 41, an adjusting cone 42, a fixing plate 43 and an adjusting screw 44. The feeding hopper 41 penetrates through the sealing cover 3 and communicates with an inner cavity of the air separation box 2, and an adjusting cone 42 is arranged at a bottom inner cavity of the feeding hopper 41.

[0027] Further, a fixing plate 43 is fixedly connected to a top of the feeding hopper 41, an adjusting screw 44 is threadedly connected to a middle part of the fixing plate 43, a bottom of the adjusting screw 44 is fixedly connected with the adjusting cone 42. When adding plastic particles into the air separation box 2 by the feeding mechanism 4, the adjusting screw 44 on the fixing plate 43 can be rotated to drive the adjusting cone 42 to move up and down, so as to adjust the size of an opening at the bottom of the feeding hopper 41, achieving the purpose of controlling the feeding speed and facilitating better crushing of the plastic particles.

[0028] Further, the scraping mechanism 14 is composed of an electric push rod 141, a scraper 142, a groove 143, a collection box 144, a handle 145 and a partition 146. The electric push rod 141 is fixed on a top of the screening box 11, and the scraper 142 penetrates through the screening box 11 and fits with the screen 12.

[0029] Further, the groove 143 is opened on one side of the base 1. The groove 143 communicates with the screening box 11 and a collection box 144 is arranged in its inner cavity. A handle 145 is fixedly connected to one side of the collection box 144. A partition 146 is fixedly connected to the inner cavity of the collection box 144. The partition 146 is located directly below the screen 12. The plastic particles blown out from the discharge port 10, the large particles fall into one side of the collection box 144 by themselves, and the small and light particles are blown through the screen 12 into the other side of the collection box 144 separated by the partition 146. Then, the electric push rod 141 is activated to drive the scraper 142 to move downward, scraping the plastic particles on the screen 12 to the area of the large particle collection box 144. By using the handle 145 to extract the groove 143, the plastic particles can be recycled and processed in the next process, improving the convenience of recycling and processing the broken plastic particles.

[0030] Working principle: When using this pneumatic separator, the blower 13 and the motor 9 are turned on, and the plastic particles are continuously introduced into the pneumatic separation box 2 by the feeding mechanism 4. Under the action of the wind force and the air guide seat 5, the plastic particles are blown towards the crushing blades 8 rotating on the rotating shaft 7 and are crushed. The crushed particles move along the direction of the rotating shaft 7 to the second air guide seat 6, and are discharged and recycled from the discharge port 10 under the cooperation of the wind force. The particles can be crushed and discharged without stopping the feeding, solving the problem that the existing pneumatic separators are difficult to quickly and continuously crush and pneumatically separate plastic particles.

[0031] In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A winnowing machine, comprising a base (1), characterized in that: A pneumatic box (2) is fixedly connected to the top of the base (1), a sealing cover (3) is provided on the top of the pneumatic box (2), a feeding mechanism (4) is provided on the top of the sealing cover (3), an air guide seat (5) is fixedly connected to one end of the top of the inner cavity of the pneumatic box (2), a second air guide seat (6) is fixedly connected to one end of the bottom of the inner cavity of the pneumatic box (2), a rotating shaft (7) is provided in the inner cavity of the pneumatic box (2), a crushing blade (8) is fixedly connected to the outer ring of the rotating shaft (7), a motor (9) is fixedly connected to the back of the pneumatic box (2), a discharge port (10) is provided on the back of the pneumatic box (2), a screening box (11) is provided on the top of the base (1), a screen (12) is fixedly connected to the middle of the screening box (11), a blower (13) is fixedly connected to the front of the pneumatic box (2), and a scraping mechanism (14) is provided on the top of the screening box (11).

2. A winnowing machine according to claim 1, characterized in that: The rotating shaft (7) is arranged in the air separation box (2) at a certain angle, and the crushing blades (8) generate wind force along the direction of the rotating shaft (7) when rotating. The output shaft of the motor (9) is fixedly connected to the rotating shaft (7).

3. A winnowing machine according to claim 1, characterized in that: The discharge port (10) is in communication with the screening box (11), and the blower (13) is in communication with the air separation box (2). The blower (13) is located at an air discharge port of the air separation box (2) at a height lower than the top of the arc-shaped groove at the top of the air guide seat (5).

4. A winnowing machine according to claim 1, characterized in that: The feeding mechanism (4) is composed of a feeding hopper (41), an adjusting cone (42), a fixing plate (43) and an adjusting screw (44); the feeding hopper (41) passes through the sealing cover (3) and is in communication with the inner cavity of the air separation box (2); and an adjusting cone (42) is provided at the bottom of the inner cavity of the feeding hopper (41).

5. A winnowing machine according to claim 4, characterized in that: A fixing plate (43) is fixedly connected to the top of the feed hopper (41), an adjusting screw (44) is threadedly connected to the middle of the fixing plate (43), and the bottom of the adjusting screw (44) is fixedly connected to the adjusting cone (42).

6. A winnowing machine according to claim 1, characterized in that: The scraper mechanism (14) is composed of an electric push rod (141), a scraper (142), a groove (143), a collection box (144), a handle (145) and a partition (146); the electric push rod (141) is fixed on the top of the screening box (11); the scraper (142) passes through the screening box (11) and fits the screen (12).

7. A winnowing machine according to claim 6, characterized in that: The groove (143) is provided on one side of the base (1); the groove (143) is communicated with the screening box (11) and a collecting box (144) is provided in the inner cavity; a handle (145) is fixedly connected to one side of the collecting box (144); a partition (146) is fixedly connected to the inner cavity of the collecting box (144); and the partition (146) is located directly below the screen (12).

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