Mixing device for plastic particle granulation

Abstract

The mixing device comprises a base, supporting columns are fixedly connected to the periphery of the base, a fixing plate is fixedly connected to the upper surfaces of the supporting columns, a shell is fixedly connected to the fixing plate, and a cover body is fixedly connected to the upper surface of the shell. The upper surface of the cover body is fixedly connected with a feeding port, the driving end of the motor is fixedly connected with a screw rod, the screw rod is fixedly connected with an upper fixing plate and a lower fixing plate on the two sides of a positioning hole, the upper fixing plate, the lower fixing plate and the scraping plate are connected through a limiting rod in a penetrating mode, and the lower end of a bolt is in threaded connection with a nut. The feeding end cover is opened, plastic particles are added, the feeding end cover is covered, the motor is started, the driving end of the motor drives the screw rod to rotate for stirring, meanwhile, the scraper is driven to slightly brush the side wall, the plastic particles are prevented from being attached to the inner wall of the shell, and after mixing is completed, the motor is closed, and the outlet valve is opened for discharging.

Description

Technical Field

[0001] This utility model relates to the field of granulation and mixing, specifically a mixing device for plastic particle granulation. Background Technology

[0002] Plastic pellets are a common name for plastic granules. They are raw materials used to store, transport, and process plastics in a semi-finished form. Plastics are a type of polymer material. They can be made from petroleum as a raw material, such as ethylene, propylene, vinyl chloride, and styrene. The molecules of these substances can react with each other under certain conditions to form compounds with very large molecular weights, i.e., polymers.

[0003] Before producing plastic particles, the first step is to prepare and mix the materials. This requires the use of a mixing device. After multiple mixing operations, traditional mixing devices accumulate a lot of impurities on their inner walls, making them difficult to clean and maintain thoroughly. The residual particles can contaminate the next mixing operation. Utility Model Content

[0004] The purpose of this invention is to provide a mixing device for plastic particle granulation to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A mixing device for plastic particle granulation includes a base, with support columns fixedly connected around the base. A fixing plate is fixedly connected to the upper surface of the support columns, and a shell is fixedly connected to the fixing plate. A cover is fixedly connected to the upper surface of the shell, and a feed inlet is fixedly connected to the upper surface of the cover. A feed end cap is installed on the upper side of the feed inlet. A motor is connected through the center of the cover, and a screw is fixedly connected to the drive end of the motor. A positioning hole is opened on the side of the screw near the motor, and a scraper is slidably connected inside the positioning hole. An upper fixing plate and a lower fixing plate are fixedly connected to both sides of the positioning hole, and the upper fixing plate, the lower fixing plate, and the scraper are connected through a limiting rod. Symmetrical threaded holes are opened at both ends of the shell and the cover, and bolts are threadedly connected to the threaded holes. Nuts are threadedly connected to the lower ends of the bolts.

[0007] As a further embodiment of this utility model, a perforation is provided in the center of the cover.

[0008] As a further improvement of this utility model, the positioning holes are in two sets and are symmetrical about the screw axis.

[0009] As a further improvement of this utility model, a rubber shock-absorbing pad is provided on the lower surface of the base.

[0010] As a further improvement of this utility model: the diameter of the lower end face of the limiting rod is smaller than the diameter of the second through hole and the countersunk hole, and the diameter of the lower end face of the limiting rod is larger than the diameter of the first through hole.

[0011] As a further improvement of this utility model, an outlet valve is installed at the lower end of the outer shell.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model features an internally installed scraper that automatically scrubs the inner wall to prevent plastic particles from adhering to the outer wall and can perform a small amount of stirring. The scraper can also be disassembled for easy cleaning, and its structure is more optimized and its design is more reasonable.

[0014] This utility model features a rotating nut that separates the nut from the bolt. The bolt is then unscrewed using a tool. The cover is manually opened, the screw is removed, the limit rod is pulled upwards, and the scraper is removed. The outer shell, screw, and scraper are cleaned separately. After cleaning, the scraper is reinstalled. The cover, bolt, and nut are then reassembled. The feed end cover is opened to add plastic particles. The feed end cover is then closed, and the motor is started. The motor's drive end rotates the screw to mix the materials, while simultaneously driving the scraper to lightly brush the sidewalls, preventing plastic particles from adhering to the inner wall of the outer shell. Mixing continues until complete. The motor is then turned off, and the outlet valve is opened to unload the material. Attached Figure Description

[0015] Figure 1 This is a front view of a mixing device for plastic particle granulation.

[0016] Figure 2 This is a top view of a mixing device for plastic particle granulation.

[0017] Figure 3 This is a side view of a mixing device for plastic particle granulation.

[0018] Figure 4 A mixing device for plastic particle granulation Figure 3 Diagram AA of the planed surface.

[0019] Figure 5 A mixing device for plastic particle granulation Figure 4 Partial cross-section, Figure B.

[0020] In the diagram: 1. Base; 2. Support column; 3. Fixing plate; 4. Outer shell; 5. Cover; 6. Motor; 7. Screw; 8. Upper fixing plate; 9. Lower fixing plate; 10. Limiting rod; 11. Through hole one; 12. Through hole two; 13. Countersunk hole; 14. Scraper; 15. Threaded hole; 16. Bolt; 17. Nut; 18. Outlet valve; 19. Rubber shock absorber; 20. Feed inlet; 21. Feed end cover; 22. Through hole; 23. Positioning hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-3 In this embodiment of the present invention, a mixing device for plastic particle granulation includes a base 1, with support columns 2 fixedly connected around the base 1, a fixing plate 3 fixedly connected to the upper surface of the support columns 2, a shell 4 fixedly connected to the fixing plate 3, a cover 5 fixedly connected to the upper surface of the shell 4, a feed inlet 20 fixedly connected to the upper surface of the cover 5, and a feed end cap 21 installed on the upper side of the feed inlet 20; a motor 6 is connected through the center of the cover 5, a screw 7 is fixedly connected to the drive end of the motor 6, a positioning hole 23 is opened on the side of the screw 7 near the motor 6, a scraper 14 is slidably connected inside the positioning hole 23, an upper fixing plate 8 and a lower fixing plate 9 are fixedly connected to both sides of the screw 7 on the positioning hole 23, and the upper fixing plate 8, the lower fixing plate 9 and the scraper 14 are connected through the limit rod 10; symmetrical threaded holes 15 are opened at both ends of the shell 4 and the cover 5, bolts 16 are threadedly connected to the threaded holes 15, and nuts 17 are threadedly connected to the lower end of the bolts 16.

[0023] The cover 5 has a through hole 22 in the center, and there are two sets of positioning holes 23 that are symmetrical about the axis of the screw 7. The lower surface of the base 1 is provided with a rubber shock-absorbing pad 19. The diameter of the lower end face of the limiting rod 10 is smaller than the diameter of the through hole 12 and the countersunk hole 13. The diameter of the lower end face of the limiting rod 10 is larger than the diameter of the through hole 11. The lower end of the outer shell 4 is equipped with an outlet valve 18.

[0024] The working principle of this utility model is as follows:

[0025] Rotate nut 17 to separate nut 17 from bolt 16, and use a tool to unscrew bolt 16. Manually open cover 5, take out screw 7, pull up limit rod 10, take out scraper 14, and clean outer shell 4, screw 7 and scraper 14 respectively. After cleaning, put scraper 14 back, and then reassemble cover 5, bolt 16 and nut 17.

[0026] Open the feed end cover 21 and add plastic particles. Cover the feed end cover 21 and start the motor 6. The drive end of the motor 6 drives the screw 7 to rotate and mix the materials. At the same time, the scraper 14 is driven to lightly brush the side wall to prevent plastic particles from adhering to the inner wall of the outer shell 4. After mixing is complete, turn off the motor 6 and open the outlet valve 18 to unload the materials.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mixing device for plastic particle granulation, comprising a base (1), characterized in that: The base (1) is fixedly connected to the surrounding area of ​​the support column (2), the upper surface of the support column (2) is fixedly connected to the fixing plate (3), the fixing plate (3) is fixedly connected to the outer shell (4), the upper surface of the outer shell (4) is fixedly connected to the cover (5), the upper surface of the cover (5) is fixedly connected to the feed port (20), and the upper side of the feed port (20) is equipped with the feed end cap (21); A motor (6) is connected through the center of the cover (5). A screw (7) is fixedly connected to the drive end of the motor (6). A positioning hole (23) is opened on the side of the screw (7) near the motor (6). A scraper (14) is slidably connected inside the positioning hole (23). An upper fixing plate (8) and a lower fixing plate (9) are fixedly connected on both sides of the positioning hole (23). The upper fixing plate (8), the lower fixing plate (9) and the scraper (14) are connected through the limiting rod (10). The outer shell (4) and the cover (5) are provided with symmetrical threaded holes (15) at both ends. The threaded holes (15) are threaded with bolts (16), and the lower end of the bolts (16) is threaded with nuts (17).

2. The mixing device for plastic particle granulation according to claim 1, characterized in that: The cover (5) has a perforation (22) in the center.

3. The mixing device for plastic particle granulation according to claim 1, characterized in that: The positioning holes (23) are in two sets and are symmetrical about the axis of the screw (7).

4. The mixing device for plastic particle granulation according to claim 1, characterized in that: The lower surface of the base (1) is provided with a rubber shock-absorbing pad (19).

5. The mixing device for plastic particle granulation according to claim 1, characterized in that: The diameter of the lower end face of the limiting rod (10) is smaller than the diameter of the second through hole (12) and the countersunk hole (13), while the diameter of the lower end face of the limiting rod (10) is larger than the diameter of the first through hole (11).

6. The mixing device for plastic particle granulation according to claim 1, characterized in that: An outlet valve (18) is installed at the lower end of the outer casing (4).

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