Degradable plastic particle screening device

Abstract

The utility model relates to the technical field of degradable plastic particle processing, in particular to a degradable plastic particle screening device which comprises a screening box, three discharging grooves are formed in one side of the screening box, an upper filtering net and a lower filtering net are arranged on the inner wall of the screening box, baffles are arranged on the outer sides of the discharging grooves, and the discharging grooves are communicated with the upper filtering net and the lower filtering net. An opening and closing assembly for opening and closing the baffle is arranged on the screen box, a base is arranged under the screen box, and an inclining assembly for inclining the screen box is arranged on the base. When large plastic particles accumulated on the upper filter screen, medium-sized plastic particles accumulated on the lower filter screen and small plastic particles accumulated on the inner wall of the bottom of the screen box need to be discharged, the screen box is inclined by a certain angle through the inclination assembly, then the moving seat is pushed, the three metal collecting frames are located below the three discharging grooves respectively, and the three discharging grooves are separated from the screen box. And then the opening and closing assembly opens the baffle, the large plastic particles, the medium plastic particles and the small plastic particles are automatically discharged into the three metal collecting frames, manual collection is not needed, and the collecting efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of processing of degradable plastic particles, and particularly relates to a screening device for degradable plastic particles. Background Technique

[0002] Degradable plastics refer to a type of plastics whose various properties of products can meet the use requirements, remain unchanged during the storage period, and can be degraded into environmentally harmless substances under natural environmental conditions after use. Degradable plastic particles are prepared by melting a mixture of plastic raw materials and various masterbatches, and then extruding and forming through an extruder. The prepared plastic particles need to be screened.

[0003] Chinese Utility Model Publication No.: CN218857417 Plastic particle screening machine. The guiding mechanism is fixedly connected to the support frame, the screening mechanism is slidably connected to the guiding mechanism, and a horizontal driving mechanism for driving the screening mechanism to reciprocate horizontally is connected to the support frame; the screening mechanism includes an open frame, a fixed pipe, a screen mesh, a discharge port, and a sealing plate. The fixed pipe is fixedly connected to the bottom end of the open frame, the fixed pipe is slidably connected to the guiding mechanism, the screen mesh communicates with the bottom end of the open frame, the discharge port is opened on the open frame, the sealing plate is detachably connected to the discharge port, and the open frame is fixedly connected to the horizontal driving mechanism. In the utility model, the sealing plate is detachably connected to the discharge port. After the screening is completed, the sealing plate is pulled, the sealing plate is separated from the discharge port, the discharge port is opened, and the plastic particles remaining in the open frame are collected through the discharge port, which is convenient for collecting the plastic particles in the open frame.

[0004] The applicant found that there are some deficiencies in the use of this patent: this patent can only screen plastic particles of one size diameter, the screening is relatively single, and the larger diameter plastic particles after screening accumulate on the top of the screen mesh. It is necessary to open the sealing plate and then manually collect them, and the collection efficiency is low.

[0005] Therefore, the utility model designs a screening device for degradable plastic particles to solve the problems existing in the prior art. Content of the Utility Model

[0006] The purpose of the utility model is to provide a screening device for degradable plastic particles to solve the problems put forward in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A screening device for degradable plastic particles, comprising: a screening box, three discharge slots are opened on one side of the screening box, an upper filter screen and a lower filter screen are arranged on the inner wall of the screening box, baffles are arranged on the outer sides of the discharge slots, an opening and closing assembly for opening and closing the baffles is arranged on the screening box, a base is arranged directly below the screening box, and an inclination assembly for inclining the screening box is arranged on the base.

[0008] Preferably, the opening and closing assembly includes three long shafts, which are respectively arranged above the three discharge grooves and rotatably installed with the sieve box. The outer side wall of the long shaft is connected to the baffle through a connecting block. A small worm gear is installed on one side of the long shaft. One end of the sieve box is rotatably installed with a long worm that meshes with the small worm gear. A knob is installed on the top of the long worm. By rotating the knob, the long worm rotates, which can drive the small worm to rotate simultaneously, and then the long shaft can drive the baffle to rotate to achieve opening and closing. Through the meshing of the worm and the worm gear, there is a self-locking effect, which improves the stability of the baffle.

[0009] Preferably, the tilting assembly includes two vertical plates, which are respectively installed on both sides of the top of the base. A short shaft is rotatably installed on the vertical plate. One side of the two short shafts is respectively connected to the middle parts of the lower sides of both sides of the sieve box. A large worm gear is installed on the other side of the short shaft. A short worm that meshes with the large worm gear is rotatably installed on the vertical plate. A handle is installed at one end of the short worm. By rotating the handle, the short worm drives the large worm gear to rotate, and then the short shaft can drive the sieve box to tilt, which is convenient for the plastic particles to automatically fall from the discharge groove. Through the meshing of the worm and the worm gear, there is a self-locking effect, which improves the stability of the sieve box.

[0010] Preferably, a vibrator is installed on the top of the base, and damping spring shock absorbers are provided at the four corners of the bottom of the base. The vibrator can vibrate the sieve box, thereby vibrating the upper and lower filter meshes, improving the screening efficiency. The damping spring shock absorbers play a role in shock absorption to avoid excessive vibration.

[0011] Preferably, a moving seat is provided at one end of the base. Three magnetic attraction plates are installed on the side of the moving seat close to the sieve box. A metal collection frame is provided on the top of the magnetic attraction plate. The metal collection frame can be adsorbed by the magnetic attraction plate, improving the stability of the metal collection frame and also facilitating the removal of the metal collection frame.

[0012] Preferably, universal wheels are provided at the four corners of the bottom of one side of the moving seat, and a handrail is installed above one end of the moving seat. The universal wheels and the handrail facilitate the staff to move the moving seat.

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

[0014] 1. Through the arrangement of the upper filter mesh and the lower filter mesh in the present utility model, the upper filter mesh first conducts the first screening of the plastic particles. Larger particles remain on the top of the upper filter mesh, and the rest fall onto the lower filter mesh. The lower filter mesh continues to screen, screening out medium-sized plastic particles. The medium-sized plastic particles accumulate on the lower filter mesh, and small particles fall to the bottom of the sieve box. Through the secondary screening, the screening is more meticulous and the screening effect is better;

[0015] 2. Through the arrangement of the tilting component and the opening and closing component, when it is necessary to discharge the large plastic particles accumulated on the upper filter screen, the medium-sized plastic particles accumulated on the lower filter screen, and the small plastic particles accumulated on the inner wall of the bottom of the screening box, the tilting component tilts the screening box by a certain angle, and then pushes the moving seat, so that the three metal collection frames are respectively located below the three discharge slots. Then, the opening and closing component opens the baffle, and the large, medium, and small plastic particles are automatically discharged into the three metal collection frames, without manual collection, and the collection efficiency is higher. Description of the Drawings

[0016] Figure 1 is the front view schematic diagram of the present utility model;

[0017] Figure 2 is the front view schematic diagram of the discharging state of the present utility model;

[0018] Figure 3 is of the present utility model Figure 2 enlarged schematic diagram of the structure at A;

[0019] Figure 4 is the schematic diagram of the moving seat structure of the present utility model.

[0020] In the figure: 1, screening box; 2, discharge slot; 3, upper filter screen; 4, lower filter screen; 5, baffle; 6, opening and closing component; 7, base; 8, tilting component; 9, vibrator; 10, damping spring shock absorber; 11, moving seat; 12, magnetic attraction plate; 13, metal collection frame; 601, long shaft; 602, connecting block; 603, small worm gear; 604, long worm; 605, knob; 801, vertical plate; 802, short shaft; 803, large worm gear; 804, short worm; 805, handle. Detailed Embodiment

[0021] 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 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.

[0022] Please refer to Figures 1-4 , an embodiment provided by the present utility model: A degradable plastic particle screening device, comprising: a screening box 1, three discharge slots 2 are opened on one side of the screening box 1, an upper filter screen 3 and a lower filter screen 4 are provided on the inner wall of the screening box 1, a baffle 5 is provided outside the discharge slot 2, an opening and closing component 6 for opening and closing the baffle 5 is provided on the screening box 1, a base 7 is provided directly below the screening box 1, and a tilting component 8 for tilting the screening box 1 is provided on the base 7.

[0023] Please refer to Figures 2-3 In this embodiment: The opening and closing assembly 6 includes three long shafts 601. The three long shafts 601 are respectively arranged above the three discharge chutes 2 and are rotatably installed with the sieve box 1. The outer side wall of the long shaft 601 is connected to the baffle 5 through a connecting block 602. A small worm gear 603 is installed on one side of the long shaft 601. A long worm 604 meshing with the small worm gear 603 is rotatably installed at one end of the sieve box 1. A knob 605 is installed on the top of the long worm 604.

[0024] Please refer to Figure 2 In this embodiment: The inclination assembly 8 includes two vertical plates 801. The two vertical plates 801 are respectively installed on both sides of the top of the base 7. A short shaft 802 is rotatably installed on the vertical plate 801. One side of the two short shafts 802 is respectively connected to the middle of the lower sides of both sides of the sieve box 1. A large worm gear 803 is installed on the other side of the short shaft 802. A short worm 804 meshing with the large worm gear 803 is rotatably installed on the vertical plate 801. A handle 805 is installed at one end of the short worm 804.

[0025] Please refer to Figure 1 In this embodiment: A vibrator 9 is installed on the top of the base 7. Damping spring shock absorbers 10 are provided at the four corners of the bottom of the base 7.

[0026] Please refer to Figure 4 In this embodiment: A moving seat 11 is provided at one end of the base 7. Three magnetic attraction plates 12 are installed on the side of the moving seat 11 close to the sieve box 1. A metal collection frame 13 is provided on the top of the magnetic attraction plate 12.

[0027] Please refer to Figure 4 In this embodiment: Universal wheels are provided at the four corners of the bottom of one side of the moving seat 11. A handrail is installed above one end of the moving seat 11.

[0028] Working principle: Plastic particles enter the sieve box 1 from the top of the sieve box 1. First, they pass through the upper filter screen 3. The upper filter screen 3 filters large particles, and the large particles accumulate on the top of the upper filter screen 3. The filtered plastic particles fall onto the lower filter screen 4. The lower filter screen 4 then sifts out medium plastic particles, and the medium particles accumulate on the top of the lower filter screen 4. The small particles fall into the inner wall of the bottom of the sieve box 1. Through secondary screening, the screening is more meticulous and the screening effect is better. When it is necessary to discharge large particles, medium particles, and small particles, turn the handle 805 to drive the short worm 804 to drive the large worm wheel 803 to rotate, drive the short shaft 802 to drive the sieve box 1 to rotate, and make the sieve box 1 tilt at a certain angle. Then push the moving seat 11 to abut the three metal collection frames 13 against one end of the sieve box 1, and the three metal collection frames 13 are respectively located below the three discharge slots 2. Then rotate the connecting block 602 to drive the long worm 604 to rotate and drive the small worm wheel 603 to rotate, drive the long shaft 601 to rotate, and make the baffle 5 rotate upward through the connecting block 602 to open the discharge slot 2. The large particles, medium particles, and small particles can be automatically discharged into the three metal collection frames 13, and the discharging is more convenient. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0029] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A degradable plastic particle screening device, comprising: A screen box (1) is characterized in that: three discharge troughs (2) are provided on one side of the screen box (1), an upper filter screen (3) and a lower filter screen (4) are provided on the inner wall of the screen box (1), a baffle plate (5) is provided on the outer side of the discharge trough (2), an opening and closing component (6) for opening and closing the baffle plate (5) is provided on the screen box (1), a base (7) is provided directly below the screen box (1), and a tilting component (8) for tilting the screen box (1) is provided on the base (7).

2. A degradable plastic particle screening device according to claim 1, characterized in that: The opening and closing assembly (6) comprises three long shafts (601), the three long shafts (601) are respectively arranged above the three discharge troughs (2) and are rotatably mounted on the screen box (1), the outer side walls of the long shafts (601) are connected to the baffle (5) via a connecting block (602), a small worm gear (603) is mounted on one side of the long shaft (601), a long worm (604) meshing with the small worm gear (603) is rotatably mounted on one end of the screen box (1), and a knob (605) is mounted on the top of the long worm (604).

3. The degradable plastic particle screening device according to claim 1, characterized in that: The tilting assembly (8) comprises two vertical plates (801), the two vertical plates (801) are respectively mounted on the top two sides of the base (7), a short shaft (802) is rotatably mounted on the vertical plates (801), one side of the two short shafts (802) is respectively connected to the middle of the lower sides of the two sides of the screen box (1), a large worm wheel (803) is mounted on the other side of the short shaft (802), a short worm (804) meshing with the large worm wheel (803) is rotatably mounted on the vertical plates (801), and a handle (805) is mounted on one end of the short worm (804).

4. The degradable plastic particle screening device according to claim 1, characterized in that: A vibrator (9) is installed on the top of the base (7), and damping spring shock absorbers (10) are provided at the four corners of the bottom of the base (7).

5. The degradable plastic particle screening device according to claim 1, characterized in that: A movable seat (11) is provided at one end of the base (7), and three magnetic plates (12) are installed on a side of the movable seat (11) close to the screen box (1), and a metal collecting frame (13) is provided on the top of the magnetic plates (12).

6. A degradable plastic particle screening device according to claim 5, characterized in that: Universal wheels are arranged at four corners of the bottom of one side of the movable seat (11), and a handrail is installed above one end of the movable seat (11).

Images