Waste aluminum fragment screening device

Abstract

The utility model discloses a waste aluminum fragment screening device which comprises a screening box, a screening assembly is installed in the screening box, the screening assembly comprises a lower screening plate fixedly installed in the screening box, lower screening holes are evenly formed in the lower screening plate, an upper screening unit is arranged above the lower screening plate, and a lower screening unit is arranged above the upper screening unit. The upper screening unit and the lower screening plate screen the waste aluminum sheets twice, and a material shifting unit is arranged between the lower screening plate and the upper screening unit; when the aluminum scrap screening device works, the sliding plate transversely moves in the screening box in a reciprocating mode, the top end of the ejector rod makes contact with the pressed slopes, the two pressed slopes on the bottom plate are arranged to be in an inverted V shape, and in the moving process, the upper screening plate is pushed to swing in a reciprocating mode with the rotating shaft as the rotating center, so that aluminum scrap fragments slide back and forth on the upper screening plate; the moving amount of the waste aluminum fragments is large, the contact probability of the waste aluminum fragments and the upper screen holes is increased, and the screening effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste aluminum fragment processing, in particular to a waste aluminum fragment screening device. Background Art

[0002] In the existing waste aluminum residue recovery technology, when the waste aluminum residue is screened, a screening machine is generally used for screening. However, in addition to aluminum slag, the waste aluminum residue generally contains aluminum ash. The aluminum slag is generally adhered to the aluminum ash to form a block. The screening machine cannot separate the two, resulting in incomplete screening and affecting the screening effect. Therefore, when screening the waste aluminum fragments, a vibration motor is introduced on the screen to vibrate the screen by the vibration motor to improve the screening effect. However, the following defects still exist:

[0003] When the screen is vibrated by a vibration motor, the movement of the scrap aluminum fragments is small, so that the probability of the scrap aluminum fragments contacting the screen holes is small, resulting in poor screening effect. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a waste aluminum fragment screening device, which effectively solves the problem that the waste aluminum fragments move a small amount when the screen is vibrated by a vibration motor.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste aluminum fragment screening device, comprising a screening box, wherein a screening assembly is installed inside the screening box;

[0006] The screening assembly includes a lower screening plate fixedly installed inside the screening box, the lower screening plate is evenly provided with lower screening holes, an upper screening unit is provided above the lower screening plate, the upper screening unit and the lower screening plate screen the waste aluminum sheets twice, and a material shifting unit is provided between the lower screening plate and the upper screening unit.

[0007] Preferably, the upper screening unit includes an upper screening plate arranged above the lower screening plate, upper screening holes are evenly opened on the upper screening plate, the aperture of the upper screening holes is larger than the aperture of the lower screening holes, rotating shafts are symmetrically installed on the front and back of the upper screening plate, the rotating shafts are rotatably installed in the rotating groove, and a torsion spring is installed between the rotating shaft and the rotating groove.

[0008] Preferably, a bottom plate is symmetrically installed on the bottom wall of the upper screening plate along the length direction, and pressure inclined surfaces are symmetrically opened on the bottom wall of the bottom plate, and the two pressure inclined surfaces form an inverted V shape.

[0009] Preferably, arc grooves are symmetrically provided on both sides of the inner wall of the screening box, and the two ends of the upper screening plate are respectively located inside the two arc grooves.

[0010] Preferably, the material pushing unit includes sliding grooves symmetrically formed on the front and back of the screening box. A sliding plate is movably installed inside the screening box, and both ends of the sliding plate are respectively slidably connected to the two sliding grooves. The top of the sliding plate is symmetrically installed with ejector rods, the top walls of the ejector rods are in contact with the pressure-receiving inclined surfaces, the bottom of the sliding plate is equidistantly installed with material pushing rods, and the bottom ends of the material pushing rods are in contact with the top wall of the lower screening plate.

[0011] Preferably, two fixing plates are symmetrically installed on the front of the screening box. A screw rod is rotatably installed between the two fixing plates. The screw rod is threadedly connected to the sliding plate. One end of the screw rod is fixedly connected to the output shaft of the forward and reverse motor, and the forward and reverse motor is fixedly installed on the fixing plate.

[0012] Preferably, a bottom box is installed at the bottom of the screening box. Discharge grooves are symmetrically formed on both sides of the screening box, and the bottom walls of the discharge grooves are flush with the top wall of the lower screening plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] During operation, the sliding plate arranged inside the screening box reciprocates horizontally. The top of the ejector rod is in contact with the pressure-receiving inclined surface, and the two pressure-receiving inclined surfaces on the bottom plate are arranged in an inverted V shape. During the movement, the upper screening plate is pushed to swing reciprocally around the rotating shaft, so that the waste aluminum fragments slide back and forth on the upper screening plate, increasing the movement amount of the waste aluminum fragments, improving the contact probability between the waste aluminum fragments and the upper screening holes, and improving the screening effect.

[0015] During operation, the bottom of the sliding plate is equidistantly installed with material pushing rods, and the bottom ends of the material pushing rods are in contact with the top wall of the lower screening plate. When the sliding plate reciprocates inside the screening box, the material pushing rods continuously push the waste aluminum fragments on the lower screening plate, also increasing the movement amount of the waste aluminum fragments, improving the contact probability between the waste aluminum fragments and the lower screening holes, and improving the screening effect. Description of the Drawings

[0016] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model.

[0017] In the drawings:

[0018] Figure 1 is a schematic structural diagram of a waste aluminum fragment screening device of the present utility model;

[0019] Figure 2 is a schematic structural diagram of the screening assembly of the present utility model;

[0020] Figure 3 is a schematic structural diagram of the upper screening unit of the present utility model;

[0021] Figure 4 Schematic diagram of the discharge chute structure of the present utility model;

[0022] Figure 5 Schematic diagram of the material pushing unit structure of the present utility model.

[0023] In the figure: 1, screening box; 2, bottom box; 3, screening assembly; 301, lower screening plate; 302, lower screening holes; 303, upper screening unit; 3031, upper screening plate; 3032, upper screening holes; 3033, rotating shaft; 3034, bottom plate; 3035, pressure-receiving inclined surface; 3036, arc groove; 304, material pushing unit; 3041, chute; 3042, sliding plate; 3043, ejector rod; 3044, fixing plate; 3045, screw; 3046, forward and reverse motor; 3047, material pushing rod; 4, discharge chute. Specific embodiments

[0024] 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 the embodiments; based on the embodiments in 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.

[0025] Embodiment 1, given by Figures 1-5 The present utility model relates to a waste aluminum chip screening device, including a screening box 1, and a screening assembly 3 is installed inside the screening box 1;

[0026] The screening assembly 3 includes a lower screening plate 301 fixedly installed inside the screening box 1. The lower screening plate 301 is evenly provided with lower screening holes 302. An upper screening unit 303 is arranged above the lower screening plate 301. The upper screening unit 303 and the lower screening plate 301 perform two screenings on the waste aluminum chips. A material pushing unit 304 is arranged between the lower screening plate 301 and the upper screening unit 303.

[0027] The upper screening unit 303 includes an upper screening plate 3031 arranged above the lower screening plate 301. The upper screening plate 3031 is evenly provided with upper screening holes 3032. The aperture of the upper screening holes 3032 is larger than that of the lower screening holes 302. The front and back surfaces of the upper screening plate 3031 are symmetrically installed with rotating shafts 3033. The rotating shafts 3033 are rotatably installed in the rotating grooves. A torsion spring is installed between the rotating shafts 3033 and the rotating grooves. The bottom wall of the upper screening plate 3031 is symmetrically installed with bottom plates 3034 along the length direction. The bottom walls of the bottom plates 3034 are symmetrically provided with pressure-receiving inclined surfaces 3035. The two pressure-receiving inclined surfaces 3035 form an inverted V shape. Arc grooves 3036 are symmetrically opened on both sides of the inner wall of the screening box 1. The two ends of the upper screening plate 3031 are respectively located inside the two arc grooves 3036.

[0028] The material feeding unit 304 includes sliding grooves 3041 symmetrically formed on the front and back of the screening box 1. A sliding plate 3042 is movably installed inside the screening box 1. The two ends of the sliding plate 3042 are respectively slidably connected to the two sliding grooves 3041. The top of the sliding plate 3042 is symmetrically installed with ejector rods 3043. The top wall of the ejector rod 3043 contacts the pressure-receiving inclined surface 3035. The bottom of the sliding plate 3042 is equidistantly installed with material feeding rods 3047. The bottom of the material feeding rod 3047 contacts the top wall of the lower screening plate 301. Two fixing plates 3044 are symmetrically installed on the front of the screening box 1. A screw rod 3045 is rotatably installed between the two fixing plates 3044. The screw rod 3045 is threadedly connected to the sliding plate 3042. One end of the screw rod 3045 is fixedly connected to the output shaft of the forward and reverse motor 3046. The forward and reverse motor 3046 is fixedly installed on the fixing plate 3044. The sliding plate 3042 reciprocates horizontally inside the screening box 1. The top of the ejector rod 3043 contacts the pressure-receiving inclined surface 3035, and the two pressure-receiving inclined surfaces 3035 on the bottom plate 3034 are arranged in an inverted V shape. During the movement, the upper screening plate 3031 is pushed to swing reciprocally around the rotating shaft 3033, so that the waste aluminum fragments slide back and forth on the upper screening plate 3031, increasing the movement amount of the waste aluminum fragments and improving the contact probability between the waste aluminum fragments and the upper screening holes 3032, thereby improving the screening effect. The bottom of the sliding plate 3042 is equidistantly installed with material feeding rods 3047. The bottom of the material feeding rod 3047 contacts the top wall of the lower screening plate 301. When the sliding plate 3042 reciprocates inside the screening box 1, the material feeding rods 3047 continuously stir the waste aluminum fragments on the lower screening plate 301, also increasing the movement amount of the waste aluminum fragments and improving the contact probability between the waste aluminum fragments and the lower screening holes 302, thereby improving the screening effect;

[0029] The bottom of the screening box 1 is installed with a bottom box 2. The two sides of the screening box 1 are symmetrically provided with discharge grooves 4. The bottom wall of the discharge groove 4 is flush with the top wall of the lower screening plate 301.

[0030] Working principle: When working, first put the waste aluminum fragments to be screened on the top of the upper screening plate 3031, and then start the forward and reverse motor 3046, so that the fixing plate 3044 rotates forward and backward continuously. Since the fixing plate 3044 is threadedly connected to the sliding plate 3042, the sliding plate 3042 is driven to reciprocate horizontally inside the screening box 1;

[0031] Since the end of the ejector rod 3043 on the sliding plate 3042 contacts the pressure-receiving inclined surface 3035, and the two pressure-receiving inclined surfaces 3035 on the bottom plate 3034 are arranged in an inverted V shape. When the sliding plate 3042 reciprocates, pressure is generated on the pressure-receiving inclined surface 3035 through the ejector rod 3043, pushing the upper screening plate 3031 to swing reciprocally, so that the waste aluminum fragments slide back and forth above the upper screening plate 3031, and the medium-sized waste aluminum fragments fall from the upper screening holes 3032 onto the lower screening plate 301;

[0032] Meanwhile, the skateboard 3042 reciprocates, causing the material pushing rod 3047 to move back and forth above the lower screening plate 301, continuously pushing the medium-sized waste aluminum fragments on the lower screening plate 301 to move, so that the medium-sized waste aluminum fragments fall from the lower screening holes 302 into the bottom box 2. During the reciprocating movement in the chute 3041, the movement amount of the waste aluminum fragments is large, increasing the contact probability between the waste aluminum fragments and the screening holes, improving the screening effect. At the same time, during the reciprocating movement of the material pushing rod 3047, the medium-sized waste aluminum fragments on the screening plate 301 can be discharged from the discharge chute 4;

[0033] After the screening is completed, the larger waste aluminum fragments are taken out from the top of the upper screening plate 3031, the medium-sized waste aluminum fragments are taken out from the discharge chute 4, and the smaller waste aluminum fragments are taken out from the bottom box 2.

Claims

1. A waste aluminum fragment screening device, comprising a screening box (1), characterized in that: A screening assembly (3) is installed inside the screening box (1); the screening assembly (3) includes a lower screening plate (301) fixedly installed inside the screening box (1), the lower screening plate (301) is evenly provided with lower screening holes (302), an upper screening unit (303) is arranged above the lower screening plate (301), the upper screening unit (303) and the lower screening plate (301) perform two screenings on waste aluminum sheets, a material dialing unit (304) is arranged between the lower screening plate (301) and the upper screening unit (303), the upper screening unit (303) includes an upper screening plate (3031) arranged above the lower screening plate (301), the upper screening plate (3031) is evenly provided with upper screening holes (3032), the aperture of the upper screening holes (3032) is larger than that of the lower screening holes (302), rotating shafts (3033) are symmetrically installed on the front and back surfaces of the upper screening plate (3031), the rotating shafts (3033) are rotatably installed in rotating grooves, and torsion springs are installed between the rotating shafts (3033) and the rotating grooves; the bottom wall of the upper screening plate (3031) is symmetrically installed with bottom plates (3034) along the length direction, and pressure-receiving inclined surfaces (3035) are symmetrically arranged on the bottom wall of the bottom plates (3034), and the two pressure-receiving inclined surfaces (3035) form an inverted V shape; the material dialing unit (304) includes sliding grooves (3041) symmetrically arranged on the front and back surfaces of the screening box (1), a sliding plate (3042) is movably installed inside the screening box (1), the two ends of the sliding plate (3042) are respectively slidably connected with the two sliding grooves (3041), the top ends of the sliding plate (3042) are symmetrically installed with ejector rods (3043), the top wall of the ejector rods (3043) is in contact with the pressure-receiving inclined surfaces (3035), and the bottom ends of the sliding plate (3042) are equidistantly installed with material dialing rods (3047), and the bottom ends of the material dialing rods (3047) are in contact with the top wall of the lower screening plate (301).

2. The waste aluminum fragment screening device according to claim 1, characterized in that: Arc grooves (3036) are symmetrically arranged on both sides of the inner wall of the screening box (1), and both ends of the upper screening plate (3031) are respectively located inside the two arc grooves (3036).

3. The waste aluminum fragment screening device according to claim 1, characterized in that: Two fixing plates (3044) are symmetrically installed on the front surface of the screening box (1), a screw rod (3045) is rotatably installed between the two fixing plates (3044), the screw rod (3045) is threadedly connected with the sliding plate (3042), one end of the screw rod (3045) is fixedly connected with the output shaft of a forward and reverse motor (3046), and the forward and reverse motor (3046) is fixedly installed on the fixing plate (3044).

4. The waste aluminum fragment screening device according to claim 1, characterized in that: A bottom box (2) is installed at the bottom end of the screening box (1), discharge grooves (4) are symmetrically arranged on both sides of the screening box (1), and the bottom wall of the discharge grooves (4) is flush with the top wall of the lower screening plate (301).

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