Vibrating screening device for grading plastic particles

Abstract

The utility model relates to the technical field of plastic particle processing, and discloses a vibration screening device for grading plastic particles, which comprises a screening barrel, a centrifugal rotating mechanism is fixedly mounted in the middle of the bottom surface of the screening barrel, and vibration springs are fixedly arranged on the periphery of the top surface of the centrifugal rotating mechanism. A screening net is fixedly arranged at the tops of the vibration springs, a vibration motor is fixedly installed in the middle of the bottom face of the screening net, a discharging hopper is arranged on one side of the bottom face of the screening barrel in a penetrating mode, and a negative pressure suction mechanism is arranged at the bottom of the discharging hopper in a penetrating mode. According to the vibration screening device for plastic particle grading, by arranging a centrifugal rotating mechanism and a vibration motor, plastic particles are put into a screening net, an external power source is communicated, the vibration motor drives the screening net to vibrate, a vibration spring deforms along with the screening net, a servo motor drives a rotating disc to rotate, and the screening net rotates along with the rotating disc; and the screening efficiency of the plastic particles can be improved through transverse and longitudinal composite movement.

Description

Technical Field

[0001] This utility model relates to the field of plastic particle processing technology, and in particular to a vibrating sieve device for grading plastic particles. Background Technology

[0002] Plastic particles are small microparticles cut and shaped from plastic. They are made by processing plastic into granules to facilitate transportation and processing. Since plastic particles come in various sizes, they need to be screened before use.

[0003] A screening device for processing plastic particles disclosed in announcement number CN213161837U, although the utility model sets two screens, a first vibrating screen and a second vibrating screen, and sets the screen aperture of the first screen to be smaller than that of the second vibrating screen, so that when plastic particles enter the first vibrating screen, the smallest particles can be screened into the corresponding graded recycling basket, while the next grade of particles will enter the second vibrating screen through the lower-level material pipe to complete the screening, and finally the largest particles enter the final recycling basket to complete one screening process. Moreover, no manual recycling of plastic particles is required during the screening process, and the screening is carried out fully automatically, which improves the working efficiency of the device.

[0004] However, this screening equipment for processing plastic particles has the following disadvantages: it is not convenient to accelerate the passage of plastic particles through the vibrating screen, many plastic particles are relatively light, and the efficiency of passing through the vibrating screen is low, which affects the overall screening efficiency. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a vibrating screen for grading plastic particles, which solves the problems mentioned in the background art, such as the difficulty in accelerating the passage of plastic particles through the vibrating screen, the low efficiency of passing through the vibrating screen for many lightweight plastic particles, and the impact on the overall screening efficiency.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a vibrating screening device for grading plastic particles, comprising a screening barrel, a centrifugal rotating mechanism fixedly installed in the middle of the bottom surface of the screening barrel, vibration springs fixedly installed around the top surface of the centrifugal rotating mechanism, a screening screen fixedly installed on the top of the vibration springs, a vibration motor fixedly installed in the middle of the bottom surface of the screening screen, a feeding hopper penetrating one side of the bottom surface of the screening barrel, and a negative pressure suction mechanism penetrating the bottom of the feeding hopper.

[0009] As a further embodiment of this utility model, the centrifugal rotation mechanism includes a servo motor and a rotating disk. The servo motor is fixedly installed in the middle of the bottom surface of the screening barrel, and the rotating disk is fixedly installed at the output end of the servo motor. The servo motor drives the rotating disk to rotate, so that the screening screen follows the rotation, thereby improving the screening efficiency of plastic particles.

[0010] As a further embodiment of this utility model, the negative pressure suction mechanism includes a collection box, a negative pressure fan, and an isolation net. The collection box is disposed through the bottom of the feeding hopper, the negative pressure fan is fixedly installed on the outer surface of the collection box, and the isolation net is fixedly disposed on one side of the inner wall of the collection box. When the negative pressure fan is turned on, the air inside the collection box is extracted to generate a suction force, which is applied to the screening net through the feeding hopper, so that lightweight plastic particles can pass through the screening net.

[0011] As a further embodiment of this utility model, a closed door is snapped onto one side of the collection box, and two sets of handles are fixedly installed on the surface of the closed door. The surface of the handles is covered with an anti-slip sleeve, which is used to prevent the handles from slipping.

[0012] As a further embodiment of this utility model, a lid is snapped onto the top surface of the screening barrel, and handles are fixedly provided on both sides of the top surface of the lid, which facilitates opening and closing the lid.

[0013] As a further embodiment of this utility model, three sets of support legs are fixedly installed on the bottom surface of the screening barrel. The three sets of support legs are arranged in a circular array and are used to support the screening barrel.

[0014] As a further embodiment of this utility model, the number of vibration springs is four sets, and the four sets of vibration springs are distributed in a circular array, which facilitates the vibration of the screening screen.

[0015] (III) Beneficial Effects

[0016] This utility model provides a vibrating screening device for grading plastic particles, which has the following advantages:

[0017] 1. This vibrating screening device for grading plastic particles uses a centrifugal rotating mechanism and a vibrating motor to feed plastic particles into the screening screen. When connected to an external power source, the vibrating motor drives the screening screen to vibrate, and the vibrating springs deform accordingly. The servo motor drives the rotating disk to rotate, causing the screening screen to rotate as well. The combined horizontal and vertical motion can improve the screening efficiency of plastic particles.

[0018] 2. This vibrating screening device for grading plastic particles uses a negative pressure suction mechanism. By turning on the negative pressure fan, the air inside the collection box is extracted, generating a suction force. This force is applied to the screening screen through the feeding hopper, making it easier for lightweight plastic particles to pass through the screening screen and avoiding screen clogging or low screening efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the centrifugal rotation mechanism of this utility model;

[0022] Figure 4 This is a schematic diagram of the negative pressure suction mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the screening barrel structure of this utility model.

[0024] In the diagram: 1. Screening barrel; 2. Centrifugal rotation mechanism; 201. Servo motor; 202. Rotary disc; 3. Vibration spring; 4. Screening screen; 5. Vibration motor; 6. Feed hopper; 7. Negative pressure suction mechanism; 701. Collection box; 702. Negative pressure fan; 703. Isolation net; 8. Sealing door; 9. Support leg; 10. Handle; 11. Barrel lid; 12. Lifting handle. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] Please see Figures 1 to 5 This utility model provides a technical solution: a vibrating sieving device for grading plastic particles, including a sieving barrel 1, a centrifugal rotating mechanism 2 fixedly installed in the middle of the bottom surface of the sieving barrel 1, vibration springs 3 fixedly installed around the top surface of the centrifugal rotating mechanism 2, a sieving screen 4 fixedly installed on the top of the vibration springs 3, and a vibration motor 5 fixedly installed in the middle of the bottom surface of the sieving screen 4. Through the centrifugal rotating mechanism 2 and the vibration motor 5, plastic particles are fed into the sieving screen 4. When connected to an external power source, the vibration motor 5 drives the sieving screen 4 to vibrate, and the vibration springs 3 deform accordingly. The servo motor 201 drives the rotating disk 202 to rotate, so that the sieving screen 4 rotates accordingly. The combined horizontal and vertical motion can improve the sieving efficiency of plastic particles.

[0027] A feeding hopper 6 is provided through one side of the bottom surface of the screening barrel 1. A negative pressure suction mechanism 7 is provided through the bottom of the feeding hopper 6. By setting the negative pressure suction mechanism 7, the negative pressure fan 702 is turned on to extract the air inside the collection box 701 and generate suction force. The suction force is applied to the screening screen 4 through the feeding hopper 6, so that the lightweight plastic particles can pass through the screening screen 4 and avoid the screen mesh of the screening screen 4 from being blocked or the screening efficiency is low.

[0028] The centrifugal rotation mechanism 2 includes a servo motor 201 and a rotating disk 202. The servo motor 201 is fixedly installed in the middle of the bottom surface of the screening barrel 1, and the rotating disk 202 is fixedly installed at the output end of the servo motor 201.

[0029] By setting up the centrifugal rotating mechanism 2, the servo motor 201 drives the rotating disk 202 to rotate, so that the screening screen 4 rotates accordingly, thereby improving the screening efficiency of plastic particles.

[0030] The negative pressure suction mechanism 7 includes a collection box 701, a negative pressure fan 702, and an isolation net 703. The collection box 701 is disposed through the bottom of the hopper 6, the negative pressure fan 702 is fixedly installed on the outer surface of the collection box 701, and the isolation net 703 is fixedly disposed on one side of the inner wall of the collection box 701.

[0031] By setting up the negative pressure suction mechanism 7, the negative pressure fan 702 is turned on to extract the air inside the collection box 701, generating a suction force, which is applied to the screening screen 4 through the feeding hopper 6, so that lightweight plastic particles can pass through the screening screen 4.

[0032] A closed door 8 is snapped onto one side of the collection box 701. Two sets of handles 10 are fixedly installed on the surface of the closed door 8, and anti-slip sleeves are fitted onto the surface of the handles 10.

[0033] With the setting of the closed door 8, the handle 10 facilitates the opening and closing of the closed door 8, which is used to open and close the collection box 701.

[0034] The top surface of the screening barrel 1 is fitted with a barrel lid 11, and handles 12 are fixedly installed on both sides of the top surface of the barrel lid 11.

[0035] With the addition of the lid 11, the handle 12 facilitates opening and closing of the lid 11, which is used to close the screening barrel 1.

[0036] Three sets of support legs 9 are fixedly installed on the bottom surface of the screening barrel 1, and the three sets of support legs 9 are arranged in a circular array.

[0037] The support legs 9 serve to support the screening barrel 1.

[0038] There are four sets of vibration springs 3, which are arranged in a ring array.

[0039] The vibration spring 3 facilitates the vibration of the screening screen 4, making it easier to screen plastic particles.

[0040] In this invention, the working steps of the device are as follows:

[0041] First step: Put plastic particles into the screening screen 4, connect the external power supply, the vibration motor 5 drives the screening screen 4 to vibrate, the vibration spring 3 follows and deforms, the servo motor 201 drives the rotating disk 202 to rotate, so that the screening screen 4 follows the rotation. The combined horizontal and vertical motion can improve the screening efficiency of plastic particles.

[0042] The second step: turn on the negative pressure fan 702 to extract the air inside the collection box 701 and generate a suction force. This suction force is applied to the screening screen 4 through the feed hopper 6, which facilitates the passage of lightweight plastic particles through the screening screen 4 and avoids clogging of the screen 4 mesh or low screening efficiency.

[0043] Third step: After screening, pull handle 10 to open the closed box door 8 and take out the plastic particles in the collection box 701 for collection.

[0044] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific structure of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0045] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

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