A plastic particle screening machine

Abstract

This utility model provides a plastic particle screening machine, belonging to the field of plastic screening technology, including a screening frame; a screening plate mounting groove opened at the top of the screening frame; a screening plate disposed inside the screening plate mounting groove; screening holes opened at the top of the screening plate; and a bottom expansion groove opened at the bottom of the screening plate near the screening holes; a material separating plate disposed at the bottom of the screening frame near the screening plate mounting groove; a three-phase motor disposed on the outer wall of one side of the material separating plate; and a ball screw fixed to the output end of the three-phase motor. This utility model uses a particle-lifting rod that performs linear reciprocating and axial rotation, which can embed itself into the screening holes during movement. Utilizing the cooperation of the bottom expansion groove and the spring, one end of the particle-lifting rod enters the bottom expansion groove and moves rapidly to impact the plastic particles embedded in the screening holes. The impact force pushes the plastic particles out of the screening holes, ensuring unobstructed screening.

Description

Technical Field

[0001] This utility model belongs to the field of plastic screening technology, and specifically relates to a plastic particle screening machine. Background Technology

[0002] Plastic particles need to be screened during production. Different sizes of plastic particles have different uses. There are many existing screening methods, including sieving and manual screening.

[0003] Because plastic particles vary in size, some particles may become embedded in the sieve holes during screening, causing blockage and reducing subsequent screening efficiency. This necessitates repeated cleaning of the sieve holes.

[0004] Therefore, a plastic particle screening machine is proposed. Summary of the Invention

[0005] This invention provides a plastic particle screening machine, the purpose of which is to solve the problems mentioned above.

[0006] This utility model provides a plastic particle screening machine, including a screening frame; a screening plate mounting groove on the top of the screening frame; a screening plate inside the screening plate mounting groove; a screening hole on the top of the screening plate; a bottom expansion groove on the bottom of the screening plate near the screening hole; a material separator on the bottom of the screening frame near the screening plate mounting groove; a three-phase motor on the outer wall of one side of the material separator; a ball screw fixed to the output end of the three-phase motor; and a blockage removal assembly on the ball screw. The blockage removal assembly includes: a reciprocating moving plate on the outer wall of the ball screw; a bracket on the top of the reciprocating moving plate; a particle-lifting rod rotating on the inner wall of the bracket; a side baffle on the outer wall of the bracket; and a spring between the side baffle and the particle-lifting rod.

[0007] Furthermore, a guide rod is provided on one outer wall of the partition plate, and the guide rod passes through the reciprocating moving plate.

[0008] Furthermore, the bottom of the screening frame is symmetrically provided with two support legs one and two support legs two, with the two support legs one located on one side of the two support legs two, and the length of the support legs one being greater than the length of the support legs two.

[0009] Furthermore, the screening hole and the bottom expansion groove are connected, and the inner sidewall of the bottom expansion groove is provided with an inclined surface;

[0010] By adopting the above technical solution, the inclined surface allows the guide rod to enter the bottom expansion groove during axial movement and linear movement, and insert into the screening hole, thereby pushing out the plastic particles embedded in the screening hole.

[0011] Furthermore, there are three screening plates in total, and the inner diameter of the screening holes at the top of the three screening plates increases from left to right;

[0012] By adopting the above technical solution, plastic particles of varying sizes can be filtered using screening holes of different inner diameters on three screening plates.

[0013] Furthermore, one end of the top particle rod can be embedded in the bottom expansion groove and pass through the sieve hole;

[0014] By adopting the above technical solution, the plastic particles embedded in the screening holes can be ejected, thus clearing the blockage.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention utilizes a linear reciprocating and axially rotating top-particle rod, which embeds itself into the screening holes during movement. By cooperating with the bottom expansion groove and the spring, one end of the top-particle rod enters the bottom expansion groove and moves rapidly, impacting the plastic particles embedded in the screening holes. The impact force pushes the plastic particles out of the screening holes, ensuring unobstructed screening and thus enabling the screening of subsequent plastic particles. This improves efficiency without requiring machine shutdown for cleaning the screen holes.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the screening plate structure according to an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the screening frame structure according to an embodiment of the present utility model;

[0022] Figure 4 This is an embodiment of the present utility model. Figure 1 Enlarged diagram of point A in the diagram;

[0023] Figure 5 This is a schematic diagram showing the cooperation between the screening plate and the unblocking assembly in an embodiment of this utility model;

[0024] Reference numerals in the attached drawings: 1. Screening frame; 2. Screening plate mounting groove; 3. Screening plate; 4. Screening hole; 5. Bottom expansion groove; 6. Material separator plate; 7. Three-phase motor; 8. Ball screw; 9. Unblocking assembly; 91. Reciprocating moving plate; 92. Support; 93. Particle ejector rod; 94. Side baffle; 95. Spring; 10. Guide rod; 11. Support leg one; 12. Support leg two. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] Reference Figure 1-5 This utility model embodiment proposes a plastic particle screening machine, including a screening frame 1. The top of the screening frame 1 is provided with three screening plate mounting slots 2 at equal intervals. Screening plates 3 are installed inside the three screening plate mounting slots 2. Screening holes 4 are provided on the top of the screening plates 3. There are three screening plates 3 in total. The inner diameter of the screening holes 4 on the top of the three screening plates 3 increases from left to right. The screening holes 4 with different inner diameters on the three screening plates 3 can be used to filter plastic particles from small to large. A bottom expansion groove 5 is provided at the bottom of the screening plates 3 near the position directly below the screening holes 4. The screening holes 4 and the bottom expansion groove 5 are connected. An inclined surface is provided on the inner side wall of the bottom expansion groove 5. The inclined surface allows the guide rod 10 to enter the bottom expansion groove 5 during axial movement and linear movement, and insert into the screening holes 4, thereby pushing out the plastic particles embedded in the screening holes 4.

[0027] A partition plate 6 is provided at the bottom of the screening frame 1 near the outer side of the screening plate mounting groove 2. A three-phase motor 7 is fixedly connected to one side of the outer wall of the partition plate 6 by bolts. A ball screw 8 is fixedly connected to one side of the output end of the three-phase motor 7.

[0028] The nut rod on the ball screw 8 is fixedly connected to the reciprocating moving plate 91 in the unblocking assembly 9 by screws. The top of the reciprocating moving plate 91 is provided with a bracket 92. The inner side wall of the bracket 92 is rotatably connected with a particle-lifting rod 93. One end of the particle-lifting rod 93 can be embedded in the bottom expansion groove 5 and pass through the screening hole 4, which can push out the plastic particles embedded in the screening hole 4 to achieve unblocking. A side baffle 94 is provided on one side of the outer wall of the bracket 92. A spring 95 is provided between the side baffle 94 and the particle-lifting rod 93. A guide rod 10 is provided on one side of the outer wall of the partition plate 6. The guide rod 10 passes through the reciprocating moving plate 91.

[0029] The bottom of the screening frame 1 is symmetrically provided with two support legs 11 and two support legs 12. The two support legs 11 are located on one side of the two support legs 12, and the length of the support legs 11 is greater than the length of the support legs 12.

[0030] The specific implementation method is as follows: When screening plastic particles, since the length of the first support leg 11 is greater than the length of the second support leg 12, the screening frame 1 is set at an inclination. Under the action of gravity, the plastic particles roll from high to low on the screening frame 1. The screening holes 4 with different inner diameters on the screening plate 3 screen the plastic particles. After passing through the screening holes 4 and the bottom expansion groove 5, the plastic particles fall downwards. The material separating plate 6 separates the screened plastic particles.

[0031] During the screening process, the three-phase motor 7 drives the ball screw 8 to rotate through its output end on one side. The reciprocating moving plate 91 on the ball screw 8 moves back and forth along the guide rod 10. The bracket 92 on the reciprocating moving plate 91 moves synchronously. When the bracket 92 moves, the top particle rod 93 enters the bottom expansion groove 5 under the pushing force of the spring 95 and the rotation of the top particle rod 93. When the top particle rod 93 contacts the bottom expansion groove 5, one end of the top particle rod 93 enters the screening hole 4. At this time, the plastic particles embedded in the screening hole 4 are separated from the screening hole 4 after being hit by the top particle rod 93. After the plastic particles are pushed away, the subsequent screening efficiency of the screening hole 4 is guaranteed.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A plastic particle screening machine, characterized in that: Includes screening rack (1); Screening plate mounting groove (2) is opened at the top of the screening frame (1); A screening plate (3) is disposed inside the screening plate mounting groove (2); Screening holes (4) are formed at the top of the screening plate (3); and A bottom expansion groove (5) is opened at the bottom of the screening plate (3) near the screening hole (4); A partition plate (6) is provided at the bottom of the screening frame (1) near the screening plate mounting groove (2); A three-phase motor (7) is installed on the outer wall of one side of the partition plate (6); A ball screw (8) fixed to the output end of the three-phase motor (7); A blockage-clearing assembly (9) is provided on the ball screw (8); The unblocking component (9) includes: A reciprocating moving plate (91) is provided on the outer wall of the ball screw (8); A bracket (92) is provided on the top of the reciprocating moving plate (91); The top rod (93) rotating on the inner wall of the support (92); and Side baffle (94) provided on the outer side wall of the bracket (92); A spring (95) is provided between the side baffle (94) and the top rod (93).

2. A plastic particle screening machine according to claim 1, characterized in that: A guide rod (10) is provided on one outer wall of the partition plate (6), and the guide rod (10) passes through the reciprocating moving plate (91).

3. A plastic particle screening machine according to claim 1, wherein: The bottom of the screening frame (1) is symmetrically provided with two support legs one (11) and two support legs two (12). The two support legs one (11) are located on one side of the two support legs two (12), and the length of the support legs one (11) is greater than the length of the support legs two (12).

4. A plastic particle screening machine according to claim 1, wherein: The screening hole (4) and the bottom expansion groove (5) are connected, and the inner side wall of the bottom expansion groove (5) is provided with an inclined surface.

5. A plastic particle screening machine according to claim 1, wherein: There are three sieve plates (3), and the inner diameter of the sieve holes (4) at the top of the three sieve plates (3) increases from left to right.

6. A plastic particle screening machine according to claim 1, wherein: One end of the top particle rod (93) can be embedded into the bottom expansion groove (5) and pass through the sieve hole (4).

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