A vibrating screen device for aluminum chips

Abstract

The utility model relates to aluminum scrap screening technical field discloses a kind of aluminum scrap vibrating screen cleaning device, including rack, screen body frame and vibration component, the rack is provided with spring, the rack is connected with screen body frame by spring, the lower of the rack is provided with conveyer belt, detachably connected with screen in the screen body frame, the mesh of the screen is small upper big lower conical structure, and mesh edge is rounded, the lower of the screen is provided with high-frequency vibrator.In the utility model, by detachable screen mesh collocation small upper big lower conical mesh and rounded edge, structure is used to guide aluminum scrap to pass through screen, reduce the probability of aluminum scrap jam, to improve the screening efficiency of device, detachable screen mesh can quickly replace different mesh size screen mesh, adapt to different particle size aluminum scrap;The high-frequency vibrator set can be targeted to shake off oil dirt adhesion, crimping jam aluminum scrap.

Description

Technical Field

[0001] This utility model relates to the field of aluminum chip screening technology, and in particular to an aluminum chip vibrating cleaning device. Background Technology

[0002] In the aluminum processing industry, aluminum shavings, as metal processing waste, need to be separated from impurities by screening equipment in order to realize the recycling of aluminum resources. Vibrating screen cleaning devices, based on the principles of vibration dispersion and mesh screening, have become the core equipment for aluminum shavings pretreatment.

[0003] Existing aluminum chip vibrating screening devices use a vibrating motor to drive a screen to reciprocate under the force of a spring. This causes aluminum chips smaller than the screen mesh to be screened out and fall into an aluminum chip recycling device located below, thus separating the aluminum chips. However, some defects still exist. For example, CN206661654U discloses an aluminum chip vibrating screening machine. Due to different processing steps, aluminum chips often present irregular shapes such as curled or sheet-like forms, which are easy to get stuck in the screen mesh, resulting in a decrease in screening efficiency. The screen has a planar structure with sharp mesh edges, which increases the probability of aluminum chips getting stuck and affects screening efficiency.

[0004] In addition, the frequency of the vibration motor is a fixed value. In actual production, the size and density of aluminum chips may vary due to different processing steps. Fixed vibration parameters may result in fine aluminum chips not being completely screened due to insufficient vibration, or coarse aluminum chips being over-crushed due to excessive vibration, or aluminum chips rolling down too quickly and not being fully separated. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an aluminum chip vibrating screen cleaning device, which aims to improve the problem of aluminum chips easily getting stuck in the mesh during aluminum chip screening.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an aluminum chip vibrating sieve cleaning device, comprising a frame, a sieve body frame, and a vibrating component. A spring is provided on the frame, and the frame is connected to the sieve body frame via the spring. A conveyor belt is provided below the frame. A screen is detachably connected inside the sieve body frame. The screen has a conical structure with smaller openings at the top and larger openings at the bottom, and the edges of the openings are rounded. A high-frequency vibrator is provided below the screen.

[0007] As a further description of the above technical solution: the vibration assembly includes a vibration motor and a reducer, both of which are fixed on the frame. The output end of the vibration motor is connected to the input end of the reducer via a coupling. The output end of the reducer is provided with an eccentric block and is connected to the shaft at the bottom of the screen.

[0008] As a further description of the above technical solution: the inner side of the sieve frame is provided with an elastic buckle, and the edge of the sieve mesh is provided with a groove that matches the elastic buckle.

[0009] As a further description of the above technical solution: the connection between the vibration motor and the frame is provided with an elastic shock-absorbing pad.

[0010] As a further description of the above technical solution: the vibration motor adopts a variable frequency motor with a frequency adjustment range of 5 to 50 Hz.

[0011] As a further description of the above technical solution: a recycling bin is provided on the right side of the sieve frame in the tilting direction.

[0012] As a further description of the above technical solution: the vibration frequency of the high-frequency vibrator is 200-500Hz, and the amplitude is 0.1-0.3mm.

[0013] As a further description of the above technical solution: the spring is a composite damping spring, with an outer helical spring and an inner damping rubber column arranged coaxially.

[0014] As a further description of the above technical solution: the sieve frame is inclined, with an inclination angle of 5 to 10°.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, a detachable screen is used with a conical mesh with a smaller top and a larger bottom and rounded edges. The structure guides aluminum chips through the screen, reducing the probability of aluminum chips getting stuck, thereby improving the screening efficiency of the device. The detachable screen can be quickly replaced with screens of different mesh sizes to accommodate aluminum chips of different particle sizes. At the same time, the high-frequency vibrator at the bottom of the screen can specifically shake off aluminum chips that are stuck with oil or curled up.

[0017] 2. In this utility model, the vibration motor adopts a variable frequency motor, which can select the corresponding vibration frequency according to the size of the aluminum chips being screened, thereby improving the adaptability of the device; the connection of the vibration motor is equipped with an elastic damping pad, which effectively isolates the transmission of motor vibration to the frame, improves the life of the motor bearing, and forms a "double noise reduction" with the composite damping spring, thereby reducing the noise generated by the vibration of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an aluminum chip vibrating screen cleaning device proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the vibration component structure of an aluminum chip vibrating cleaning screen device proposed in this utility model;

[0020] Figure 3This is a schematic diagram of the screen structure of an aluminum chip vibrating cleaning device proposed in this utility model;

[0021] Figure 4 This is a cross-sectional view of the screen of a vibrating screen cleaning device for aluminum chips proposed in this utility model.

[0022] Legend:

[0023] 1. Frame; 2. Screen frame; 3. Spring; 4. Vibrating motor; 5. Screen; 6. Reducer; 7. Eccentric block; 8. Recycling box; 9. Conveyor belt; 10. High-frequency vibrator. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-4This utility model provides an embodiment of an aluminum chip vibrating sieve cleaning device, comprising a frame 1, a sieve frame 2, and a vibrating assembly. A spring 3 is mounted on the frame 1, connecting it to the sieve frame 2 via the spring 3. A conveyor belt 9 is positioned below the frame 1. A screen 5 is detachably connected inside the sieve frame 2. The screen 5 has a conical mesh structure with smaller openings at the top and larger openings at the bottom, and the mesh edges are rounded. A high-frequency vibrator 10 is positioned below the screen 5. The vibrating assembly includes a vibrating motor 4 and a reducer 6, both fixed to the frame 1. The output end of the vibrating motor 4 is connected to the input end of the reducer 6 via a coupling. An eccentric block 7 is mounted on the output end of the reducer 6 and connected to a shaft at the bottom of the screen 5. When energized, the vibrating motor 4 outputs rotational motion, and its output end is connected to the input end of the reducer 6 via a coupling. The coupling compensates for the rotation between the vibrating motor 4 and the reducer. The installation coaxiality error between 6 ensures smooth power transmission and avoids component wear caused by rigid connection; the output speed of the vibratory motor 4 is usually high. After being reduced by the reducer 6, the output speed is adapted to the screening requirements. At the same time, the reducer 6 amplifies the torque through the gear meshing principle to ensure sufficient power to drive the eccentric block 7 and screen 5 to vibrate; the eccentric block 7 is a block structure (such as fan-shaped or semi-circular) with its center of gravity off the axis of rotation. When the reducer drives the eccentric block 7 to rotate, the centrifugal force of the eccentric block 7 will change periodically with the rotation angle, forming a periodically changing excitation force. The output end of the reducer 6 is connected to the bottom of the screen 5 through the shaft. The periodic excitation force generated by the rotation of the eccentric block 7 is directly transmitted to the screen 5 through the shaft. Since the screen frame 2 is elastically connected to the frame 1 through the spring 3, under the action of the excitation force, the screen 5 will reciprocate periodically around the equilibrium position to achieve vibratory screening of aluminum chips;

[0026] The screen 5, with its conical mesh and rounded edges, effectively reduces the probability of aluminum chip jamming, thus lowering the likelihood of mesh blockage. The screen frame 2 is connected to the machine frame 1 by springs 3, achieving elastic isolation between the two and initially attenuating vibration noise. The high-frequency vibrator 10 is fixed to the screen frame 2 by an elastic bracket, maintaining a 5-10mm gap with the bottom of the screen 5 to avoid rigid collisions. Under the action of an alternating electric field, the piezoelectric ceramic component (or electromagnetic drive component) of the high-frequency vibrator 10 generates 200-500 micro-expansions per second, converting... The high-frequency mechanical vibration of the vibrating head is transmitted to the bottom of the screen 5 through the air medium (or slight elastic contact, such as a silicone pad). The screen 5 is superimposed with high-frequency micro-vibration on the basis of the main vibration to form a "composite vibration trajectory". This does not interfere with the screening function of the main vibration, but also makes the mesh area vibrate at high frequency, forming a "dual vibration synergy" with the main vibration of the screen frame 2, which improves the unblocking efficiency. The screened aluminum chips fall onto the conveyor belt 9 below the frame 1 and are transported to the next process by the conveyor belt 9, which reduces the workload of workers and improves the degree of automation.

[0027] Specifically, the inner side of the screen frame 2 is provided with elastic buckles, and the edge of the screen 5 is provided with a groove that matches the elastic buckles; the mechanical locking method of "elastic buckles + grooves" enables quick assembly and disassembly of the screen 5 and the screen frame 2, shortens the replacement time of the screen 5, and is suitable for aluminum chip screening scenarios with multiple mesh sizes; at the same time, the pre-tightening force of the elastic buckles ensures that the screen 5 and the screen frame 2 fit tightly, preventing the screen 5 from shifting during vibration.

[0028] Specifically, the screen frame 2 is inclined at an angle of 8°. The aluminum chips are separated by gravity through the inclined angle: after passing through the screen, the aluminum chips are conveyed by the conveyor belt, and aluminum chips larger than the mesh diameter slide along the inclined surface to the recycling box 8.

[0029] Specifically, the vibration motor 4 is a variable frequency motor with a frequency adjustment range of 5 to 50 Hz. By adjusting the frequency of the vibration motor 4, the rotation speed of the eccentric block can be changed, thereby adjusting the vibration frequency of the screen 5: at low frequency (5 to 20 Hz), the screen 5 vibrates slowly and with a large amplitude, which is suitable for dispersing coarse aluminum chips and allowing them to pass through the screen; at high frequency (30 to 50 Hz), the screen vibrates quickly and with a moderate amplitude, which is suitable for screening fine aluminum chips and avoiding excessive splashing.

[0030] Specifically, a recycling box 8 is set on the right side of the inclined direction of the screen frame 2; it receives the large-diameter aluminum chips conveyed by the screen 5 and sends them back to the previous process for re-crushing.

[0031] Specifically, the high-frequency vibrator 10 has a vibration frequency of 350Hz and an amplitude of 0.2mm; it applies high-frequency micro-vibration to the screen 5 to specifically shake off stuck aluminum chips, and the micro-amplitude avoids excessive vibration and deformation of the screen 5, thus extending the service life of the screen 5.

[0032] Specifically, spring 3 is a composite damping spring, with an outer helical spring and an inner coaxial damping rubber column. The composite structure of helical spring and damping rubber column achieves both elastic support and vibration energy attenuation. The damping rubber absorbs high-frequency vibration, improves the fatigue life of spring 3, and reduces the frequency of spare parts replacement.

[0033] Specifically, the connection between the vibration motor 4 and the frame 1 is equipped with an elastic damping pad; this pad isolates the transmission of motor vibration to the frame 1 and, in conjunction with the composite spring, further attenuates motor vibration and reduces equipment noise; the damping pad absorbs the impact of starting / stopping, improves the life of the motor bearings, and reduces maintenance costs.

[0034] 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 vibrating screen cleaning device for aluminum chips, comprising a frame (1), a screen body frame (2), and a vibration assembly, characterized in that: A spring (3) is provided on the frame (1). The frame (1) is connected to the screen frame (2) through the spring (3). A conveyor belt (9) is provided below the frame (1). A screen (5) is detachably connected inside the screen frame (2). The mesh of the screen (5) is a conical structure with a smaller top and a larger bottom, and the edges of the mesh are rounded. A high-frequency vibrator (10) is provided below the screen (5).

2. The aluminum chip vibrating screen cleaning device according to claim 1, characterized in that: The vibration assembly includes a vibration motor (4) and a reducer (6). Both the vibration motor (4) and the reducer (6) are fixed on the frame (1). The output end of the vibration motor (4) is connected to the input end of the reducer (6) through a coupling. The output end of the reducer (6) is provided with an eccentric block (7) and is connected to the shaft at the bottom of the screen (5).

3. The aluminum chip vibrating screen cleaning device according to claim 1, characterized in that: The inner side of the sieve frame (2) is provided with an elastic buckle, and the edge of the sieve (5) is provided with a groove that matches the elastic buckle.

4. The aluminum chip vibrating screen cleaning device according to claim 2, characterized in that: The connection between the vibration motor (4) and the frame (1) is provided with an elastic shock-absorbing pad.

5. The aluminum chip vibrating screen cleaning device according to claim 2, characterized in that: The vibration motor (4) is a variable frequency motor with a frequency adjustment range of 5 to 50 Hz.

6. The aluminum chip vibrating screen cleaning device according to claim 1, characterized in that: A recycling bin (8) is provided on the right side of the sieve frame (2) in the inclined direction.

7. The aluminum chip vibrating screen cleaning device according to claim 1, characterized in that: The high-frequency vibrator (10) has a vibration frequency of 200-500Hz and an amplitude of 0.1-0.3mm.

8. The aluminum chip vibrating screen cleaning device according to claim 1, characterized in that: The spring (3) is a composite damping spring, with an outer helical spring and an inner damping rubber column arranged coaxially.

9. The aluminum chip vibrating screen cleaning device according to claim 1, characterized in that: The sieve frame (2) is inclined, with an inclination angle of 5 to 10°.

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