A screening device for producing a rubber compound

Abstract

This utility model discloses a screening device for rubber compound production, relating to the field of raw material screening technology. It includes a base and a screening box. A screen plate is installed inside the screening box, and a vibrating motor is fixedly installed on the lower surface of the screening box. Four vibration damping springs arranged in a circular array are provided between the screening box and the base. A transfer mechanism is provided on the lower surface of the base, and a top cover is threadedly connected to the upper surface of the screening box. During use, the vibrating motor drives the screening box to vibrate, thoroughly screening the granular raw materials through the screen plate. Finer particles fall through the screen plate into the screening box and flow out through the fine material outlet, while larger particles flow out through the coarse material outlet. The device features a simple structure and good screening effect. During this process, the operation of the vacuum pump draws the dust generated during the screening of the granular raw materials into the dust filter box through the dust suction hole, annular cavity, and vacuum pipe, achieving a dust collection effect and preventing dust from being emitted.

Description

Technical Field

[0001] This utility model relates to the field of raw material screening technology, and in particular to a screening device for the production of compound rubber. Background Technology

[0002] Compound rubber refers to a non-crosslinked, flowable rubber compound in which compounding agents are mixed with raw rubber in block, granule, or powder form. A compound rubber is a rubber compound made by mixing raw rubber or plasticized rubber with compounding agents according to a formula using a rubber mixing mill. Compound rubber needs to be extruded into granules using a pellet mill for screening.

[0003] Patent document CN222346039U discloses a rubber compound screening device, including a screening box and a feeding device. The feeding device is located at one end of the screening box and has a feeding ramp connected to the top of one end of the screening box. The screening box contains a first screening plate and a second screening plate. The first screening plate is located near the feeding device and has a first rotating shaft. The second screening plate has a second rotating shaft. A first motor and a second motor are located on one side of the screening box, connected to the first and second rotating shafts. The bottom of the first and second screening plates has slots. A first storage box is located in the slot at the bottom of the first screening plate, and a second storage box is located in the slot at the bottom of the second screening plate. This invention provides a device for secondary screening of rubber compounds.

[0004] In actual use, the above scheme lacks a screening and shaking mechanism at the screen plate, which means that the particulate material can only pass through the screen by its own weight to achieve screening. This screening method is too simple and cannot fully screen the particulate raw materials, resulting in unsatisfactory screening effect. Utility Model Content

[0005] This utility model discloses a screening device for rubber compound production, which aims to solve the technical problem that the screening effect of existing raw material screening devices is not ideal.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A screening device for producing compound rubber includes a base and a screening box. The screening box is equipped with a screen plate inside. A vibrating motor is fixedly installed on the lower surface of the screening box. Four vibrating screen damping springs arranged in a circular array are provided between the screening box and the base. A transfer mechanism is provided on the lower surface of the base. The screening box has a top cover threadedly connected to its upper surface. The top cover has a feed inlet embedded in its upper surface. The screening box has a coarse material inlet and a fine material inlet embedded on its two sides, respectively. The coarse material inlet is located above the screen plate, and the fine material inlet is located at the bottom of the screening box.

[0007] In a preferred embodiment, an mounting ring plate is fixedly installed on the inner wall of the screening box. Threaded holes are opened on the surfaces of both the mounting ring plate and the screen plate. Mounting bolts are threadedly connected to the inner walls of the threaded holes, and the screen plate is fixedly connected to the mounting ring plate by the mounting bolts.

[0008] The installation of the ring plate and mounting bolts facilitates the maintenance and installation / removal of the screen plate.

[0009] In a preferred embodiment, the top cover has an annular cavity inside its shell, and the inner wall of the top cover has a dust suction hole that extends into the annular cavity. A dust filter box and an air pump are fixedly installed on the right side surface of the base, and the suction end of the air pump extends into the interior of the dust filter box. An air suction pipe communicating with the interior of the annular cavity is provided on the upper surface of the dust filter box.

[0010] In a preferred embodiment, the number of suction holes is several, and the several suction holes are arranged in a circumferential array on the inner wall of the top cover.

[0011] In a preferred embodiment, the transfer mechanism includes a storage groove formed on the lower surface of the base, a threaded rod rotatably connected to the inner top wall of the storage groove, a rotating opening extending through the storage groove on the left side surface of the base, a crank handle rotatably connected to the inner wall of the rotating opening, bevel gears fixedly connected to the right end of the crank handle and the surface of the threaded rod, a base plate threadedly connected to the surface of the threaded rod, and four universal wheels arranged in a circumferential array installed on the lower surface of the base plate.

[0012] In a preferred embodiment, the two bevel gears mesh, and the crank handle is connected to the threaded rod via the bevel gears.

[0013] In a preferred embodiment, guide sliders are provided on both sides of the base plate, and guide grooves for the guide sliders to slide are provided on both sides of the inner wall of the storage groove.

[0014] By setting a guide slider, the base plate can move up and down in a directional manner through the rotation of the threaded rod under the guidance of the guide slider.

[0015] As can be seen from the above, the screening device for rubber compound production provided by this utility model has the following technical effects.

[0016] Firstly, the vibrating motor drives the screening box to vibrate, which thoroughly screens the granular raw materials through the screen plate. Finer particles fall into the screening box through the screen plate and flow out through the fine material outlet, while larger particles flow out through the coarse material outlet. The structure is simple and the screening effect is good. During this process, the operation of the air pump draws the dust generated during the screening of the granular raw materials into the dust filter box through the dust suction hole, the annular cavity and the air suction pipe to achieve the dust collection effect and avoid dust generation.

[0017] Secondly, when the device needs to be moved, turning the crank drives the threaded rod to rotate through the bevel gear. Under the guidance of the guide slider, the base plate can move down through the rotation of the threaded rod to drive the casters until the casters contact the ground and lift the base. At this point, the device can be moved by the casters without the need for manual lifting, which facilitates its transportation. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a screening device for producing compound rubber according to the present invention.

[0019] Figure 2 This is a frontal cross-sectional schematic diagram of a screening device for producing compound rubber according to the present invention.

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the air extraction pipe of a screening device for producing rubber compound proposed in this utility model.

[0021] In the attached diagram: 1. Base; 2. Screening box; 3. Screen plate; 4. Vibrating motor; 5. Vibrating screen damping spring; 6. Top cover; 7. Coarse material inlet; 8. Fine material inlet; 9. Mounting ring plate; 10. Annular cavity; 11. Dust suction hole; 12. Dust filter box; 13. Air pump; 14. Air suction pipe; 15. Threaded rod; 16. Handle; 17. Bevel gear; 18. Base plate; 19. Casters; 20. Guide slider. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-3 A screening device for producing compound rubber includes a base 1 and a screening box 2. The screening box 2 is equipped with a screen plate 3 inside. A vibrating motor 4 is fixedly installed on the lower surface of the screening box 2. Four vibrating screen damping springs 5 ​​arranged in a circular array are provided between the screening box 2 and the base 1. A transfer mechanism is provided on the lower surface of the base 1.

[0024] The inner wall of the screening box 2 is fixedly installed with a mounting ring plate 9. Both the mounting ring plate 9 and the screen plate 3 have threaded holes on their surfaces. The inner wall of the threaded holes is threaded with mounting bolts. The screen plate 3 is fixedly connected to the mounting ring plate 9 by the mounting bolts. The mounting ring plate 9 and the mounting bolts facilitate the maintenance and installation / removal of the screen plate 3.

[0025] The top surface of the screening box 2 is threaded with a top cover 6. The top surface of the top cover 6 is fitted with a feed inlet. The two sides of the screening box 2 are fitted with a coarse material inlet 7 and a fine material inlet 8, respectively. The coarse material inlet 7 is located above the screen plate 3, and the fine material inlet 8 is located at the bottom of the screening box 2.

[0026] Reference Figure 2 and Figure 3 In a preferred embodiment, an annular cavity 10 is provided inside the housing of the top cover 6, and a dust suction hole 11 is provided on the inner wall of the top cover 6, which extends into the annular cavity 10. A dust filter box 12 and an air pump 13 are fixedly installed on the right side surface of the base 1. The dust filter box 12 is provided with a dust filter bag that is the same as the one inside the vacuum cleaner. The suction end of the air pump 13 extends into the interior of the dust filter box 12. An air suction pipe 14 communicating with the interior of the annular cavity 10 is provided on the upper surface of the dust filter box 12.

[0027] There are several suction holes 11, and these suction holes 11 are arranged in a circular array on the inner wall of the top cover 6.

[0028] Reference Figure 2 and Figure 3 In a preferred embodiment, the transfer mechanism includes a storage groove formed on the lower surface of the base 1. A threaded rod 15 is rotatably connected to the inner top wall of the storage groove. A rotating opening extending through the storage groove is formed on the left side surface of the base 1. A crank handle 16 is rotatably connected to the inner wall of the rotating opening. A bevel gear 17 is fixedly connected to both the right end of the crank handle 16 and the surface of the threaded rod 15. A base plate 18 is threadedly connected to the surface of the threaded rod 15. Four universal wheels 19 arranged in a circumferential array are installed on the lower surface of the base plate 18.

[0029] Two bevel gears 17 mesh with each other, and the crank handle 16 is connected to the threaded rod 15 through the bevel gears 17.

[0030] Guide sliders 20 are provided on both sides of the base plate 18, and guide grooves for the guide sliders 20 to slide are provided on both sides of the inner wall of the storage groove. Under the guidance of the guide sliders 20, the base plate 18 can move up and down in a directional manner by rotating the threaded rod 15.

[0031] Working principle: When in use, the granular raw material to be screened is poured into the screening box 2. At this time, the vibrating motor 4 runs and drives the screening box 2 to vibrate. The granular raw material is fully screened through the screen plate 3. The finer particles fall into the screening box 2 through the screen plate 3 and flow out through the fine material port 8, while the larger particles flow out through the coarse material port 7. During this period, the operation of the air pump 13 draws the dust generated during the screening of the granular raw material into the dust filter box 12 through the dust suction hole 11, the annular cavity 10 and the air suction pipe 14 to achieve the dust collection effect. When it is necessary to move the device, turn the handle 16 to drive the threaded rod 15 to rotate through the bevel gear 17. Under the guidance of the guide slider 20, the base plate 18 can move down through the rotation of the threaded rod 15 to drive the caster wheel 19 until the caster wheel 19 contacts the ground and lifts the base 1. At this time, the device can be moved by the caster wheel 19.

[0032] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A screening device for rubber compound production, characterized in that, Includes a base (1) and a screening box (2). The screening box (2) is equipped with a screen plate (3). A vibrating motor (4) is fixedly installed on the lower surface of the screening box (2). Four vibrating screen damping springs (5) arranged in a circular array are provided between the screening box (2) and the base (1). A transfer mechanism is provided on the lower surface of the base (1). The top surface of the screening box (2) is threaded with a top cover (6), and the top surface of the top cover (6) is fitted with a feed inlet. The two sides of the screening box (2) are fitted with a coarse material inlet (7) and a fine material inlet (8), respectively. The coarse material inlet (7) is located above the screen plate (3), and the fine material inlet (8) is located at the bottom of the screening box (2).

2. The screening device for rubber compound production according to claim 1, characterized in that, The inner wall of the screening box (2) is fixedly installed with an installation ring plate (9). The surfaces of the installation ring plate (9) and the screen plate (3) are both provided with threaded holes. The inner wall of the threaded holes is threaded with installation bolts. The screen plate (3) is fixedly connected to the installation ring plate (9) by the installation bolts.

3. The screening device for rubber compound production according to claim 1, characterized in that, The top cover (6) has an annular cavity (10) inside its shell. The inner wall of the top cover (6) has a dust suction hole (11) that extends into the annular cavity (10). A dust filter box (12) and an air pump (13) are fixedly installed on the right side surface of the base (1). The suction end of the air pump (13) extends into the interior of the dust filter box (12). The upper surface of the dust filter box (12) is provided with an air suction pipe (14) that communicates with the interior of the annular cavity (10).

4. The screening device for producing compound rubber according to claim 3, characterized in that, The number of the dust suction holes (11) is several, and the several dust suction holes (11) are arranged in a circular array on the inner wall of the top cover (6).

5. A screening device for producing compound rubber according to claim 1, characterized in that, The transfer mechanism includes a storage slot on the lower surface of the base (1). A threaded rod (15) is rotatably connected to the inner top wall of the storage slot. A rotating opening is provided on the left side surface of the base (1) that extends into the storage slot. A crank handle (16) is rotatably connected to the inner wall of the rotating opening. A bevel gear (17) is fixedly connected to the right end of the crank handle (16) and the surface of the threaded rod (15). A base plate (18) is threadedly connected to the surface of the threaded rod (15). Four universal wheels (19) arranged in a circular array are installed on the lower surface of the base plate (18).

6. A screening device for producing compound rubber according to claim 5, characterized in that, The two bevel gears (17) mesh with each other, and the crank (16) is connected to the threaded rod (15) via the bevel gears (17).

7. A screening device for producing compound rubber according to claim 5, characterized in that, The bottom plate (18) is provided with guide sliders (20) on both sides of the surface, and the inner walls of both sides of the storage groove are provided with guide grooves for the guide sliders (20) to slide.

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