Multi-layer drawer type screening device for nylon plastic particles
By designing a multi-layer drawer-type screening device, and utilizing a motor-driven turntable and transmission system, multi-layer filtration of nylon plastic particles was achieved, solving the problem that existing devices could only screen two diameters and expanding the screening range.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN XINHONG ENG PLASTICS CO LTD
- Filing Date
- 2025-04-24
- Publication Date
- 2026-05-15
AI Technical Summary
Existing screening devices can only perform single-layer screening of nylon plastic granules, resulting in a small screening range and an inability to obtain nylon plastic granules of various diameters, thus affecting the scope of application of the device.
A multi-layer drawer-type screening device was designed. Through multiple positioning plates and filter screen structures inside the box, combined with a motor-driven turntable and transmission system, it can achieve multi-layer filtration and automatic discharge of nylon plastic particles, and supports the screening of particles of various diameters.
This technology enables multi-layer filtration of nylon plastic particles, allowing the production of nylon plastic particles of various diameters and expanding the application range and screening capabilities of the device.
Smart Images

Figure CN224240089U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of screening device technology, and more particularly to a multi-layer drawer-type screening device for nylon plastic granules. Background Technology
[0002] Nylon plastic granules are plastics made of polyamide resins, mainly produced by the condensation polymerization of diamines and diacids, or by the ring-opening polymerization of lactams formed after the dehydration of amino acids. Nylon plastic granules possess excellent physicochemical properties, such as high strength, wear resistance, high temperature resistance, and corrosion resistance, and are therefore widely used in the manufacture of various high-performance products, such as automotive parts, industrial products, and daily necessities.
[0003] However, existing screening devices can only perform single-layer screening of nylon plastic granules, thus only obtaining nylon plastic granules of two diameters. The screening range is small, which affects the application range of the device. Therefore, in order to correct the above-mentioned defects, we propose a multi-layer drawer-type screening device for nylon plastic granules. Utility Model Content
[0004] In view of the above problems, this application provides a multi-layer drawer-type screening device for nylon plastic granules to solve the problem that only two diameters of nylon plastic granules can be obtained, the screening range is small, and the scope of use of the device is affected.
[0005] This application provides a multi-layer drawer-type screening device for nylon plastic granules, including a box body: a sealing door is movably connected to the front side wall of the box body, and several positioning plates are provided inside the box body. A transmission rod passes through the several positioning plates, and several pairs of limiting rings are fixedly connected to the transmission rods. The limiting rings are fixedly connected to the positioning plates. The two sides of the positioning plates are provided with slots, and the slots are provided with blocks. A filter screen is fixedly connected to the side wall of the blocks. Several bolts pass through the bottom of the slots, and the bottom of the blocks is provided with threaded grooves that match the bolts. Several discharge ports are provided on the two side walls of the box body, and a discharge port is provided on the side wall of the box body. The top end of the transmission rod passes through the top of the box body, a drive mechanism is provided above the box body, and a pair of feed ports are provided on the top of the box body.
[0006] In some embodiments, the drive mechanism includes a housing fixedly connected to the top of a box, and a motor fixedly connected to the rear side wall of the housing. The output shaft of the motor passes through the side wall of the housing and is fixedly connected to a turntable. A movable plate is provided below the turntable. The movable plate is fixedly connected to the top of a transmission rod, and a limit block is fixedly connected to the top of the movable plate. A transmission block is movably connected to the front side wall of the limit block via a rotating shaft, and the other side of the transmission block is movably connected to the front side wall of the turntable.
[0007] In some embodiments, a pair of support blocks are fixedly connected to the bottom of the box, the bottom of the pair of support blocks is provided with anti-slip texture, and the pair of support blocks are symmetrically arranged about the central axis of the box.
[0008] In some embodiments, several horizontal plates are fixedly connected to the two side walls of the box, and a storage bin is provided above the horizontal plates.
[0009] In some embodiments, the width of the movable plate is equal to the inner cavity width of the housing.
[0010] In some embodiments, a plurality of the filter screens are arranged at an angle, and the mesh count of the plurality of filter screens increases sequentially from top to bottom.
[0011] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below.
[0012] 1. By setting up a box, filter screen, positioning plate, discharge port and storage bin, nylon plastic granules are put into the box through the inlet and filtered through several filter screens. Small nylon plastic granules fall down through the filter screens, while large granules remain on the filter screens and are discharged into the storage bin through the discharge port. This achieves multi-layer filtration of nylon plastic granules to obtain nylon plastic granules of various diameters.
[0013] 2. By setting up a motor, turntable, transmission block, movable plate and transmission rod, the motor is started and drives the turntable to rotate. The turntable drives the limit block and movable plate to move up and down through the transmission block. The movable plate drives the positioning plate to move up and down through the transmission rod and limit ring. In turn, the filter screen shakes up and down through the locking block to facilitate the discharge of nylon plastic particles.
[0014] 3. With the filter screen, clips, slots, positioning blocks, and bolts in place, when replacing the filter screen, open the sealed door, unscrew the bolts, pull the filter screen outwards, insert the clips on the new filter screen into the slots, and then tighten the bolts again to complete the filter screen replacement. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a partial perspective view of this application.
[0017] Figure 2 This is a schematic diagram of the overall structure of this application.
[0018] Figure 3 This is a side view of the housing and motor.
[0019] Figure 4 for Figure 2 Enlarged view of point A in the image.
[0020] Figure 5 This is a 3D view of the positioning plate and the card slot.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Box body; 2. Sealed door; 3. Positioning plate; 4. Transmission rod; 5. Limiting ring; 6. Slot; 7. Block; 8. Filter screen; 9. Bolt; 10. Discharge port; 11. Discharge outlet; 12. Inlet; 13. Shell; 14. Motor; 15. Turntable; 16. Movable plate; 17. Limiting block; 18. Transmission block; 19. Support block; 20. Horizontal plate; 21. Storage bin. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0024] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and drawings of this application are intended to cover without excluding other meanings. The words "a" or "an" do not exclude the presence of multiples. Unless otherwise stated, "multiple" means two or more (including two), and similarly, "multiple sets" means two or more (including two sets).
[0025] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0026] Furthermore, the descriptions of directions such as the X direction, Y direction, and Z direction used to explain the operation and construction of the components in this embodiment are not absolute but relative. Although these directions are appropriate when the components are in the positions shown in the figure, they should be interpreted differently when these positions change to correspond to the changes.
[0027] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, "connection" or "linkage" in mechanical structures can refer to a physical connection, such as a fixed connection, a detachable connection, or an integral connection. In addition to referring to a physical connection, "connection" or "linkage" in circuit structures can also refer to an electrical connection or a signal connection. For example, it can be a direct connection, i.e., a physical connection, or an indirect connection through at least one intermediate component, as long as the circuit is connected. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0028] To facilitate understanding of the technical solutions in the embodiments of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.
[0029] This application provides a multi-layer drawer-type screening device for nylon plastic granules, including a box body 1: a sealing door 2 is movably connected to the front side wall of the box body 1, and a plurality of positioning plates 3 are provided inside the box body 1. A transmission rod 4 passes through the plurality of positioning plates 3, and a plurality of pairs of limiting rings 5 are fixedly connected to the transmission rod 4. The limiting rings 5 are fixedly connected to the positioning plates 3. The two sides of the positioning plates 3 are provided with slots 6, and the slots 6 are provided with blocks 7. A filter screen 8 is fixedly connected to the side wall of the blocks 7. A plurality of bolts 9 pass through the bottom of the slots 6, and the bottom of the blocks 7 is provided with threaded grooves that match the bolts 9. A plurality of discharge ports 10 are provided on the two side walls of the box body 1, and a discharge port 11 is provided on the side wall of the box body 1. The top end of the transmission rod 4 passes through the top of the box body 1. A drive mechanism is provided above the box body 1, and a pair of feed ports 12 are provided on the top of the box body 1.
[0030] In the technical solution of this application embodiment, the filter screen 8 is shaken up and down by a drive mechanism, which facilitates the discharge of nylon plastic particles. The drive mechanism includes a housing 13, which is fixedly connected to the top of the box 1. A motor 14 is fixedly connected to the rear side wall of the housing 13. The output shaft of the motor 14 passes through the side wall of the housing 13 and is fixedly connected to a turntable 15. A movable plate 16 is provided below the turntable 15. The movable plate 16 is fixedly connected to the top of the transmission rod 4. A limit block 17 is fixedly connected to the top of the movable plate 16. A transmission block 18 is movably connected to the front side wall of the limit block 17 through a rotating shaft. The other side of the transmission block 18 is movably connected to the front side wall of the turntable 15.
[0031] In the technical solution of this application embodiment, the anti-slip effect of the box body 1 is improved by the support block 19. A pair of support blocks 19 are fixedly connected to the bottom of the box body 1. The bottom of the pair of support blocks 19 is provided with anti-slip texture, and the pair of support blocks 19 are symmetrically arranged about the central axis of the box body 1.
[0032] In the technical solution of this application embodiment, nylon plastic particles can be received through the storage bin 21 for collection. Several horizontal plates 20 are fixedly connected to the two side walls of the box 1. The storage bin 21 is provided above the horizontal plates 20. The width of the movable plate 16 is equal to the width of the inner cavity of the shell 13. Several pairs of filter screens 8 are arranged at an incline, and the mesh count of the several pairs of filter screens 8 increases sequentially from top to bottom.
[0033] Working principle: When in use, start motor 14, which drives turntable 15 to rotate. Turntable 15 drives limit block 17 and movable plate 16 to move up and down through transmission block 18. Movable plate 16 drives positioning plate 3 to move up and down through transmission rod 4 and limit ring 5. Thus, through locking block 7, filter screen 8 moves up and down. Then, nylon plastic granules are put into box 1 through feed port 12 and filtered through several filter screens 8. Small nylon plastic granules pass through filter screen 8 and fall down, while large granules stay on filter screen 8 and are discharged into storage bin 21 through discharge port 10. This achieves multi-layer filtration of nylon plastic granules to obtain nylon plastic granules of various diameters. When filter screen 8 needs to be replaced, open sealing door 2, unscrew bolt 9, pull out filter screen 8, insert locking block 7 on new filter screen 8 into locking slot 6, and then tighten bolt 9 to complete the replacement of filter screen 8.
[0034] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.
[0035] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A multi-layer drawer-type screening device for nylon plastic granules, characterized in that, Includes a housing (1): a sealing door (2) is movably connected to the front side wall of the housing (1), and several positioning plates (3) are provided inside the housing (1). A transmission rod (4) passes through the several positioning plates (3), and several pairs of limiting rings (5) are fixedly connected to the transmission rods (4). The limiting rings (5) are fixedly connected to the positioning plates (3). The two sides of the positioning plates (3) are provided with slots (6), and the slots (6) are provided with blocks (7). The side walls of the blocks (7) are fixedly connected to... A filter screen (8) is connected, and several bolts (9) pass through the bottom of the slot (6). The bottom of the block (7) is provided with a threaded groove that matches the bolts (9). Several discharge ports (10) are provided on both sides of the box (1), and a discharge port (11) is provided on the side wall of the box (1). The top of the transmission rod (4) passes through the top of the box (1). A drive mechanism is provided above the box (1), and a pair of feed ports (12) are provided on the top of the box (1).
2. The multi-layer drawer-type screening device for nylon plastic granules according to claim 1, characterized in that, The drive mechanism includes a housing (13), which is fixedly connected to the top of the box (1). A motor (14) is fixedly connected to the rear side wall of the housing (13). The output shaft of the motor (14) passes through the side wall of the housing (13) and is fixedly connected to a turntable (15). A movable plate (16) is provided below the turntable (15). The movable plate (16) is fixedly connected to the top of the transmission rod (4). A limit block (17) is fixedly connected to the top of the movable plate (16). A transmission block (18) is movably connected to the front side wall of the limit block (17) through a rotating shaft. The other side of the transmission block (18) is movably connected to the front side wall of the turntable (15).
3. The multi-layer drawer-type screening device for nylon plastic granules according to claim 1, characterized in that, A pair of support blocks (19) are fixedly connected to the bottom of the box (1). The bottom of the pair of support blocks (19) is provided with anti-slip texture, and the pair of support blocks (19) are symmetrically arranged about the central axis of the box (1).
4. The multi-layer drawer-type screening device for nylon plastic granules according to claim 1, characterized in that, Several horizontal plates (20) are fixedly connected to the two side walls of the box (1), and a storage bin (21) is provided above the horizontal plates (20).
5. A multi-layer drawer-type screening device for nylon plastic granules according to claim 2, characterized in that, The width of the movable plate (16) is equal to the width of the inner cavity of the shell (13).
6. The multi-layer drawer-type screening device for nylon plastic granules according to claim 1, characterized in that, Several pairs of filter screens (8) are arranged at an angle, and the mesh count of several pairs of filter screens (8) increases sequentially from top to bottom.