Vibrating screen device for plastic granulation

Abstract

The utility model discloses a vibrating screen device for plastic granulation, which comprises a hopper, a vibrating motor, a vibrating screen and a vibrating screen, wherein the bottom of the hopper is provided with a supporting part and the vibrating motor drives the hopper to vibrate; the screening part is arranged in the hopper, the screening part comprises a first screening plate and a second screening plate, the first screening plate and the second screening plate are arranged up and down, and discharging plates which are staggered with each other are arranged at the end of the first screening plate, the end of the second screening plate and the end of the hopper. The height of the limiting brush can be adjusted according to the size of particles, so that the particles can be in full contact with the screen plate, and the screening accuracy is improved; according to the feeding part, a PVC plastic rib reinforced hose is combined with a spiral blade, continuous and stable conveying of materials is achieved through driving of a driving motor, automatic and continuous feeding is achieved, the materials can be guided and divided through a material guiding plate and a material dividing plate, and the situation that the materials are stacked at one position, and the screening effect is affected is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic granulation and screening, in particular to a vibrating screening device for plastic granulation. Background Art

[0002] Plastic pelletizing is the process of converting raw plastic materials (such as resins and recycled plastics) into pellets of a defined shape and size after pre-processing, including cleaning, drying, and crushing, through heating, melting, extrusion, and cooling. These pellets are easy to store, transport, and further process into various plastic products, making them an indispensable part of plastic recycling and the production of new materials.

[0003] During the processing, the finished particles need to be screened. In the existing screening equipment, most of the materials are poured manually at the same fixed point during the screening process. It does not have a corresponding material distribution mechanism to disperse the materials, so the materials are concentrated at the same point, which easily causes the materials to accumulate and is not conducive to screening. Utility Model Content

[0004] The purpose of the utility model is to provide a vibrating screen device for plastic granulation to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a vibrating screen device for plastic granulation, comprising:

[0006] The hopper has a support portion at the bottom and a vibration motor for driving the hopper to vibrate;

[0007] The screening part is placed in the hopper, and the screening part includes a No. 1 sieve plate and a No. 2 sieve plate arranged above and below. The No. 1 sieve plate, the No. 2 sieve plate and the end of the hopper are all provided with mutually staggered discharge plates. A guide plate is provided above the hopper, and a material dividing plate is provided inside the guide plate at an angle for guiding the diverted material;

[0008] The feeding part is placed at the end of the hopper and comprises a PVC plastic reinforced hose and a spiral blade rotating inside the hose.

[0009] Preferably, the support portion includes four legs placed at the bottom of the hopper, and springs are fixedly connected between the tops of the legs and the hopper.

[0010] Preferably, a multi-layer support structure is fixedly connected to the inner wall of the hopper, and the support structure is composed of a plurality of support blocks, and the No. 1 sieve plate and the No. 2 sieve plate are both placed on top of the support blocks.

[0011] Preferably, a fastening screw is inserted into the end of the No. 1 sieve plate, and the fastening screw passes through the No. 2 sieve plate and is threadedly connected to the support leg.

[0012] Preferably, the top of the hopper is fixedly connected to a support cover plate, one end of the top of the support cover plate is fixedly connected to the feed hopper, the guide plate is fixed to the top of the feed hopper, one end of the support cover plate is threadedly connected to an adjustment screw, the bottom of the adjustment screw is rotatably connected to a limiting brush, and the top of the limiting brush is fixedly connected to a sliding rod that is slidably connected to the support cover plate.

[0013] Preferably, the feeding portion further comprises a discharge box fixedly connected to the end of the hopper, and a discharge port is provided at the position of the guide plate corresponding to the discharge box.

[0014] Preferably, a driving motor is fixedly connected to the top of the discharge box, and an output end of the driving motor is fixedly connected to the spiral blade.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: through the double-layer screening design of the No. 1 sieve plate and the No. 2 sieve plate, and the drive of the vibration motor, the material can be screened quickly and fully, thereby improving the screening efficiency; the combined use of the guide plate and the dividing plate enables the material to be evenly distributed when entering the hopper, avoiding material accumulation and further improving the screening effect; the No. 1 sieve plate and the No. 2 sieve plate are fixedly connected by the support block and the fastening screw, which realizes rapid disassembly and replacement, and facilitates the inspection and maintenance of the sieve plate; by adjusting the cooperation between the screw and the limiting brush, the height of the limiting brush can be adjusted according to the size of the particles, so that the particles can fully contact the sieve plate, thereby improving the accuracy of screening; the feeding part adopts the combination of PVC plastic reinforced hose and spiral blades, and through the drive of the drive motor, continuous and stable material transportation is realized, automatic continuous feeding is realized, and the material can be guided and diverted by the guide plate and the dividing plate to prevent the material from accumulating in one place and affecting its screening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the vibration motor of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the support block of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the limit brush of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the material dividing plate of the utility model.

[0021] In the figure: 1. Support leg; 2. Spring; 3. Adjustment screw; 4. Vibration motor; 5. Hopper; 6. Screen plate No. 1; 7. Screen plate No. 2; 8. Support cover; 9. Feed hopper; 10. Guide plate; 11. Separator plate; 12. Discharge plate; 13. Drive motor; 14. Discharge box; 15. PVC reinforced hose; 16. Spiral blade; 17. Support block; 18. Fastening screw; 19. Limiting brush. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1 、 2 As shown in Figures 3, 4, and 5, the utility model provides a technical solution: a vibrating screening device for plastic granulation, comprising: a hopper 5 which is a box body with an open top and one end, a support portion at the bottom of the hopper 5 and a vibration motor 4 for driving the hopper 5 to vibrate, and the vibration motor 4 is installed at the bottom of the hopper 5 by bolts; a screening portion is placed in the hopper 5, and the screening portion comprises a No. 1 sieve plate 6 and a No. 2 sieve plate 7 arranged up and down, the sieve hole of the No. 1 sieve plate 6 is larger than the sieve hole of the No. 2 sieve plate 7, the No. 1 sieve plate 6, the No. 2 sieve plate 7 and the end of the hopper 5 are provided with mutually staggered discharge plates 12, the No. 1 sieve plate 6 and the No. 2 sieve plate 7 are both inclined downward toward one end of the discharge plate 12, a material guide plate 10 is provided above the hopper 5, and a material dividing plate 11 is inclined inside the material guide plate 10 for guiding and diverting materials; a feeding portion is placed at the end of the hopper 5, and the feeding portion comprises a PVC plastic reinforced hose 15 and a spiral blade 16 rotating inside it.

[0024] It should be noted that the utility model connects one end of the PVC plastic reinforced hose 15 to the plastic particle storage device, and the high-speed rotating spiral blades enable the material to rise along the spiral rise angle during the rotation process, thereby achieving the effect of conveying along the PVC plastic reinforced hose 15. The material enters the guide plate 10 through the PVC plastic reinforced hose 15, and under the action of the material dividing plate 11 at the top of the guide plate 10, the plastic particles are diverted and diffused to four directions, so as to prevent the material from accumulating in one place and affecting the screening efficiency. The vibration motor 4 drives the hopper 5 to shake, and small particle materials fall from the No. 1 sieve plate 6 onto the No. 2 sieve plate 7. Under the action of the No. 2 sieve plate 7, smaller particles fall to the bottom of the inner wall of the hopper 5. The materials on the No. 1 sieve plate 6, the No. 2 sieve plate 7 and the top of the inner wall of the hopper 5 move to the ends of the discharge plate 12 respectively, and are discharged through the discharge pipe of the discharge plate 12.

[0025] See also Figure 1 、 2 As shown in Figures 3 and 4, the support portion includes four legs 1 placed at the bottom of the hopper 5, and springs 2 are fixed between the tops of the legs 1 and the hopper 5.

[0026] It should be noted that the spring 2 of the present invention, mounted between the top of the support leg 1 and the bottom of the hopper 5, effectively absorbs and mitigates the impact and damage to the equipment structure caused by the vibration generated by the vibration motor 4. This shock absorption function helps extend the service life of the equipment. The elastic action of the spring causes the hopper 5 to vibrate more evenly and forcefully, thereby improving screening efficiency. Material is more easily passed through the sieve holes during vibration, reducing clogging and overload.

[0027] See also Figure 3 As shown, the inner wall of the hopper 5 is fixed with a multi-layer support structure, which is composed of multiple support blocks 17. The No. 1 sieve plate 6 and the No. 2 sieve plate 7 are both placed on the top of the support block 17. A fastening screw 18 is inserted into the end of the No. 1 sieve plate 6. The fastening screw 18 passes through the No. 2 sieve plate 7 and is threadedly connected to the support leg 1.

[0028] When the hopper 5 is disassembled and replaced, the bottom of the fastening screw 18 is screwed off from the hopper 5 and then pulled out. Then, the hopper 5 is pulled out and the hopper 5 is opened. After the repair of the hopper 5 is completed, the hopper 5 is opened and the hopper 5 is opened.

[0029] See also Figure 1 、 4 As shown, the top of the hopper 5 is fixedly connected to a support cover plate 8, one end of the top of the support cover plate 8 is fixedly connected to a feed hopper 9, a material guide plate 10 is fixedly connected to the top of the feed hopper 9, one end of the support cover plate 8 is threadedly connected to an adjusting screw 3, the bottom of the adjusting screw 3 is rotatably connected to a limiting brush 19, and the top of the limiting brush 19 is fixedly connected to a sliding rod that is slidably connected to the support cover plate 8.

[0030] It should be noted that the utility model can adjust the height of the limiting brush 19 according to the size of the particles, so that the particles can fully contact the No. 1 screen plate 6 for screening. During adjustment, rotate the adjusting screw 3 to adjust the position of the adjusting screw 3 in the middle of the support cover 8. The adjusting screw 3 drives the limiting brush 19 and the slide rod to move downward, so that the material in the screening process can be limited and blocked to prevent it from piling up too high and causing insufficient screening.

[0031] See also Figure 1 、 2 As shown in Figure 5, the feeding part also includes a discharge box 14 fixedly connected to the end of the hopper 5. A discharge port is provided at the position of the guide plate 10 corresponding to the discharge box 14. A drive motor 13 is fixedly connected to the top of the discharge box 14, and the output end of the drive motor 13 is fixedly connected to the spiral blade 16.

[0032] It should be noted that the output end of the driving motor 13 of the utility model is connected to the spiral blade 16 through a connecting rod. The driving motor 13 drives the spiral blade 16 to rotate at high speed in the PVC plastic reinforced hose 15. The material enters the pipeline from the feed port of the PVC plastic reinforced hose 15. The material is continuously pushed forward in the pipeline as the spiral blade 16 rotates. During the conveying process, the material is rubbed and squeezed by the spiral blade 16, forming a certain internal friction force, thereby preventing the material from flowing back. The rotational motion of the spiral blade 16 continuously and stably conveys the material to the discharge box 1414. When the material reaches the discharge port of the discharge box 1414, the material is discharged from the discharge port due to the loss of the constraint of the spiral blade 16.

[0033] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one such feature.

[0035] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0036] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vibrating screen device for plastic granulation, characterized in that: include: A hopper (5), the bottom of the hopper (5) is provided with a support portion and a vibration motor (4) for driving the hopper (5) to vibrate; A screening part is placed in the hopper (5), and the screening part includes a No. 1 sieve plate (6) and a No. 2 sieve plate (7) arranged above and below, and the No. 1 sieve plate (6), the No. 2 sieve plate (7) and the end of the hopper (5) are all provided with mutually staggered discharge plates (12), and a guide plate (10) is provided above the hopper (5), and a material distribution plate (11) is provided inside the guide plate (10) at an angle for guiding the diverted material; A feeding part is placed at the end of the hopper (5), and the feeding part comprises a PVC plastic reinforced hose (15) and a spiral blade (16) rotating inside the hose.

2. A vibrating screen device for plastic granulation according to claim 1, characterized in that: The support portion comprises four legs (1) placed at the bottom of the hopper (5), and springs (2) are fixedly connected between the tops of the legs (1) and the hopper (5).

3. A vibrating screen device for plastic granulation according to claim 1, characterized in that: The inner wall of the hopper (5) is fixedly connected with a multi-layer support structure, which is composed of a plurality of support blocks (17). The No. 1 sieve plate (6) and the No. 2 sieve plate (7) are both placed on top of the support blocks (17).

4. A vibrating screen device for plastic granulation according to claim 1, characterized in that: A fastening screw (18) is inserted into the end of the No. 1 sieve plate (6), and the fastening screw (18) passes through the No. 2 sieve plate (7) and is threadedly connected to the support leg (1).

5. The vibrating screen device for plastic granulation according to claim 1, characterized in that: The top of the hopper (5) is fixedly connected to a support cover plate (8), one end of the top of the support cover plate (8) is fixedly connected to a feed hopper (9), the guide plate (10) is fixedly connected to the top of the feed hopper (9), one end of the support cover plate (8) is threadedly connected to an adjusting screw (3), the bottom of the adjusting screw (3) is rotatably connected to a limiting brush (19), and the top of the limiting brush (19) is fixedly connected to a sliding rod that is slidably connected to the support cover plate (8).

6. A vibrating screen device for plastic granulation according to claim 1, characterized in that: The feeding portion further comprises a discharge box (14) fixedly connected to the end of the hopper (5), and a discharge port is provided at the position of the guide plate (10) corresponding to the discharge box (14).

7. A vibrating screen device for plastic granulation according to claim 6, characterized in that: The top of the discharge box (14) is fixedly connected to a driving motor (13), and the output end of the driving motor (13) is fixedly connected to the spiral blade (16).

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