A high-melt-index polypropylene special high-efficiency double-screw extrusion granulator

Abstract

The utility model relates to double screw extruding granulator technical field, and disclose a kind of high efficient double screw extruding granulator special for high melt fat polypropylene, including extruding granulator body and fixed installation on the control box of extruding granulator body, four display screens are provided on the control box, the feed inlet of extruding granulator body is fixedly installed with feed pipeline, first, solid material and liquid material are respectively poured on splayed fan plate, then the weight of each can be shown through display screen, then after controlling good mix ratio, rotating shaft and splayed fan plate are controlled by control box to rotate, so as to control the dosage of material, so as to be beneficial to processing quality, then splayed fan plate is then blocked to other two feed grooves, so as to pour material into other two feed grooves, so as to complete fast and accurate feeding, improve processing efficiency while being able to guarantee the quality of processing.

Description

Technical Field

[0001] This utility model relates to the technical field of twin-screw extrusion granulators, specifically a high-efficiency twin-screw extrusion granulator for high melt polypropylene. Background Technology

[0002] A twin-screw extruder is a device that uses two meshing screws to convey, mix, melt, and extrude materials in a closed barrel to ultimately produce granules.

[0003] Its core function is to transform raw materials in the form of powder, flakes or blocks into granular products with specific shapes, sizes and densities, which are widely used in many industries such as plastics, food, feed, and medicine.

[0004] Existing high-efficiency twin-screw extrusion granulators for high-melt polypropylene feed materials directly into the granulator through the feed inlet. However, the materials may contain both solid and liquid components. Pouring the materials directly into the granulator may cause them to adhere to the inner wall of the feed inlet pipe, thus affecting the material feeding. Furthermore, the material mixing ratio needs to be strictly controlled during material feeding to ensure the quality of the materials. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency twin-screw extrusion granulator for high-melt polypropylene, in order to solve the problems mentioned in the background technology, which all involve directly pouring materials into the extrusion granulator through the feed inlet. However, the materials may be both solid and liquid. When pouring the materials into the extrusion granulator, the materials may adhere to the inner wall of the feed inlet pipe, thus affecting the material feeding. Moreover, the material mixing ratio needs to be strictly controlled during the feeding process to ensure the quality of the materials.

[0006] To achieve the above objectives, this utility model provides the following technical solution: it includes an extrusion granulator body and a control box fixedly installed on the extrusion granulator body. The control box is equipped with four display screens. A feed pipe is fixedly installed at the feed inlet of the extrusion granulator body. A disassembly assembly for cleaning the stirring rod is provided on the feed pipe. A metering assembly for measuring solid and liquid materials is provided on the feed pipe. A cleaning assembly for cleaning the inner wall of the feed pipe is provided inside the feed pipe.

[0007] Preferably, the disassembly assembly includes four lugs around the feed pipe, a cover plate is provided at the upper end of the feed pipe, and first screws are respectively inserted and installed on the cover plate and the four lugs. A first nut is threaded onto the axial side wall of the first screw.

[0008] Preferably, the metering component includes four arc-shaped feeding channels fixedly installed on the cover plate, four feeding slots are provided on the cover plate, an arc-shaped displacement groove is provided at the upper end of the feeding channel, a rotating shaft is rotatably installed at the lower end of the cover plate, and a figure-eight fan-shaped plate is fixedly installed on the axial side wall of the rotating shaft.

[0009] Preferably, the cleaning component includes an arc-shaped sliding groove formed on the feed pipe, a baffle fixedly installed on the inner wall of the feed pipe, a scraper rod slidably installed on the arc-shaped sliding groove, an installation groove formed on the scraper rod, a connecting rod inserted through the installation groove, a second screw inserted between the connecting rod and the scraper rod, a second nut threadedly connected to the axial side wall of the second screw, and a plurality of stirring rod bodies fixedly installed on the connecting rod.

[0010] Preferably, the size of the figure-eight fan-shaped plate is larger than the size of the feed trough.

[0011] Preferably, the scraper rod is in contact with the inner wall of the feed pipe.

[0012] Preferably, the figure-eight fan-shaped plate is fitted to the bottom of the arc-shaped feeding channel.

[0013] Preferably, the four arc-shaped feed channels have the same size.

[0014] Preferably, the length of the stirring rod body is smaller than the size of the feed inlet.

[0015] Preferably, the baffle is located at the upper end of the arc-shaped sliding groove.

[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. First, pour the solid and liquid materials onto the figure-eight fan-shaped plate respectively. The weight of each material can then be displayed on the screen. After controlling the mixing ratio, the control box controls the rotation of the rotating shaft and the figure-eight fan-shaped plate to control the amount of material used, which is beneficial to the processing quality. Then, the figure-eight fan-shaped plate blocks the other two feeding troughs, allowing the material to be poured into the other two feeding troughs. This enables fast and accurate feeding, improving processing efficiency while ensuring processing quality.

[0017] 2. When solid and liquid materials come into contact, the materials may adhere to the inner wall of the feed pipe. In this case, the scraper rod is controlled by the control box to rotate along the arc-shaped sliding groove to clean the materials and prevent them from adhering to the inner wall of the feed pipe, thus affecting the material conveying. Since solid materials enter the feed pipe all at once, it may cause blockage. At this time, the connecting rod and the stirring rod body can stir the materials to speed up the entry of the materials. After the processing is completed, the connecting rod and the stirring rod body can be removed by unscrewing the first nut and the second nut for cleaning, so as to facilitate the next use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a partial cross-sectional view of the present invention; Figure 3 This is a three-dimensional structural diagram of the disassembly component and the metering component of this utility model; Figure 4 This is a three-dimensional structural diagram of the cleaning component of this utility model; Figure 5 For the present utility model Figure 4 Enlarged view of point A.

[0019] In the diagram: 1. Extrusion granulator body; 11. Control box; 12. Display screen; 13. Feed pipe; 2. Disassembly assembly; 3. Metering assembly; 4. Cleaning assembly; 21. Hanging lug; 22. Cover plate; 23. First screw; 24. First nut; 31. Arc-shaped feed channel; 32. Feed trough; 33. Arc-shaped displacement groove; 34. Rotating shaft; 35. Herringbone fan-shaped plate; 41. Arc-shaped sliding groove; 42. Baffle; 43. Scraper rod; 44. Mounting groove; 45. Connecting rod; 46. Second screw; 47. Second nut; 48. Mixing rod body. Detailed Implementation

[0020] 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.

[0021] Example 1: Please refer to Figure 1 - Figure 3A high-efficiency twin-screw extrusion granulator for high-melt polypropylene includes an extrusion granulator body 1 and a control box 11 fixedly installed on the extrusion granulator body 1. The control box 11 is equipped with four display screens 12. A feed pipe 13 is fixedly installed at the feed inlet of the extrusion granulator body 1. A disassembly assembly 2 for cleaning the stirring rod is installed on the feed pipe 13. A metering assembly 3 for metering solid and liquid materials is installed on the feed pipe 13. The metering assembly 3 can ensure the mixing ratio of materials, thereby ensuring the quality of material processing. A cleaning assembly 4 is installed inside the feed pipe 13 to clean the inner wall of the feed pipe 13. The cleaning assembly 4 can not only prevent materials from adhering to the inner wall of the feed pipe 13, but also prevent solid materials from accumulating at the feed inlet and being effectively fed into the extrusion granulator body 1.

[0022] The disassembly assembly 2 includes four lugs 21 around the feed pipe 13. A cover plate 22 is provided at the upper end of the feed pipe 13. First screws 23 are respectively inserted and installed on the cover plate 22 and the four lugs 21. A first nut 24 is threaded on the axial side wall of the first screw 23.

[0023] The metering component 3 includes four arc-shaped feeding channels 31 fixedly installed on the cover plate 22. The cover plate 22 has four feeding slots 32. The upper end of the feeding pipe 13 has an arc-shaped displacement groove 33. The lower end of the cover plate 22 is rotatably mounted with a rotating shaft 34. A figure-eight fan-shaped plate 35 is fixedly installed on the axial side wall of the rotating shaft 34. The figure-eight fan-shaped plate 35 only blocks the two opposite feeding slots 32. One side of the four arc-shaped feeding channels 31 is used for feeding solid materials and the other side is used for feeding liquid materials. Therefore, one plate of the figure-eight fan-shaped plate 35 will only weigh solid materials and the other plate will only weigh liquid materials. The rotating shaft 34 can rotate in both directions under the control of the control box 11 to meet the above requirements.

[0024] The size of the figure-eight fan-shaped plate 35 is larger than the size of the feed trough 32. The figure-eight fan-shaped plate 35 can block the material on the feed trough 32. After the weighing data is obtained, the material can be weighed by rotating it to obtain the required mixing ratio.

[0025] The bottom of the figure-eight fan-shaped plate 35 is attached to the bottom of the arc-shaped feed channel 31, which can prevent materials from falling into the feed pipe 13 through the gap between the figure-eight fan-shaped plate 35 and the arc-shaped feed channel 31.

[0026] The four arc-shaped feeding channels 31 are of the same size, which allows the figure-eight fan-shaped plates 35 to block the arc-shaped feeding channels 31 respectively, thereby calculating the weight of the material.

[0027] In this embodiment: First, solid and liquid materials are poured onto the figure-eight fan-shaped plate 35 respectively. Then, the weight of each material can be displayed on the display screen 12. After controlling the mixing ratio, the rotating shaft 34 and the figure-eight fan-shaped plate 35 are rotated by the control box 11, so that the amount of material used can be controlled, which is beneficial to the processing quality. Then, the figure-eight fan-shaped plate 35 blocks the other two feeding troughs 32, so that the material can be poured into the other two feeding troughs 32, thereby completing fast and accurate feeding, improving processing efficiency while ensuring processing quality.

[0028] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figure 4 and Figure 5 The cleaning component 4 includes an arc-shaped sliding groove 41 on the feed pipe 13. A baffle 42 is fixedly installed on the inner wall of the feed pipe 13. A scraper rod 43 is slidably installed on the arc-shaped sliding groove 41. The scraper rod 43 can rotate under the drive of the control box 11. The baffle 42 is located at the upper end of the arc-shaped sliding groove 41 to prevent material from entering the arc-shaped sliding groove 41 and affecting the operation of the scraper rod 43. An installation groove 44 is opened on the scraper rod 43. A connecting rod 45 is inserted into the installation groove 44. A second screw 46 is inserted between the connecting rod 45 and the scraper rod 43. A second nut 47 is threaded on the axial side wall of the second screw 46. Several stirring rod bodies 48 are fixedly installed on the connecting rod 45. The stirring rod bodies 48 can prevent material from accumulating at the feed inlet and causing blockage at the feed inlet.

[0029] The scraper rod 43 is in contact with the inner wall of the feed pipe 13. When the scraper rod 43 rotates, it can scrape off the material on the inner wall of the feed pipe 13, thus preventing the material from adhering to the inner wall of the feed pipe 13 and affecting the material conveying.

[0030] The length of the stirring rod body 48 is smaller than the size of the feed inlet, which ensures that the stirring rod body 48 can disperse the material without obstructing the material from falling.

[0031] The baffle 42 is located at the upper end of the arc-shaped sliding groove 41, which can prevent materials from entering the arc-shaped sliding groove 41 and thus affecting the rotation of the scraper rod 43.

[0032] In this embodiment: when solid materials and liquid materials come into contact, the materials may adhere to the inner wall of the feed pipe 13. At this time, the scraper rod 43 is controlled by the control box 11 to rotate along the arc-shaped sliding groove 41. Because the scraper rod 43 is in contact with the inner wall of the feed pipe 13, the rotation of the scraper rod 43 can clean the materials and prevent them from adhering to the inner wall of the feed pipe 13, thus affecting the material conveying. Since solid materials enter the feed pipe 13 all at once, it may cause blockage of the feed pipe 13. At this time, the connecting rod 45 and the stirring rod body 48 can stir the materials to speed up the entry of the materials. After the processing is completed, the connecting rod 45 and the stirring rod body 48 can be removed by unscrewing the first nut 24 and the second nut 47 for cleaning, so as to facilitate the next use.

[0033] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] 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 high-efficiency twin-screw extrusion granulator for high melt polypropylene, comprising an extrusion granulator body (1) and a control box (11) fixedly installed on the extrusion granulator body (1), wherein the control box (11) is provided with four display screens (12), and a feed pipe (13) is fixedly installed at the feed inlet of the extrusion granulator body (1), characterized in that: The feed pipe (13) is provided with a disassembly assembly (2) for easy cleaning of the stirring rod, the feed pipe (13) is provided with a metering assembly (3) for metering solid and liquid materials, and the feed pipe (13) is provided with a cleaning assembly (4) for cleaning the inner wall of the feed pipe (13).

2. The high-efficiency twin-screw extrusion granulator for high-melt polypropylene according to claim 1, characterized in that: The disassembly assembly (2) includes four lugs (21) around the feed pipe (13). A cover plate (22) is provided at the upper end of the feed pipe (13). First screws (23) are respectively inserted and installed on the cover plate (22) and the four lugs (21). A first nut (24) is threaded on the axial side wall of the first screw (23).

3. The high-efficiency twin-screw extrusion granulator for high-melt polypropylene according to claim 2, characterized in that: The metering component (3) includes four arc-shaped feeding channels (31) fixedly installed on the cover plate (22), four feeding slots (32) are provided on the cover plate (22), an arc-shaped displacement groove (33) is provided at the upper end of the feeding pipe (13), a rotating shaft (34) is rotatably installed at the lower end of the cover plate (22), and a figure-eight fan-shaped plate (35) is fixedly installed on the axial side wall of the rotating shaft (34).

4. The high-efficiency twin-screw extrusion granulator for high-melt polypropylene according to claim 1, characterized in that: The cleaning component (4) includes an arc-shaped sliding groove (41) opened on the feed pipe (13), a baffle (42) fixedly installed on the inner wall of the feed pipe (13), a scraper rod (43) slidably installed on the arc-shaped sliding groove (41), an installation groove (44) opened on the scraper rod (43), a connecting rod (45) inserted on the installation groove (44), a second screw (46) inserted between the connecting rod (45) and the scraper rod (43), a second nut (47) threaded on the axial side wall of the second screw (46), and a plurality of stirring rod bodies (48) fixedly installed on the connecting rod (45).

5. The high-efficiency twin-screw extrusion granulator for high-melt polypropylene according to claim 3, characterized in that: The size of the figure-eight fan-shaped plate (35) is larger than the size of the feed trough (32).

6. The high-efficiency twin-screw extrusion granulator for high-melt polypropylene according to claim 4, characterized in that: The scraper rod (43) is in contact with the inner wall of the feed pipe (13).

7. The high-efficiency twin-screw extrusion granulator for high-melt polypropylene according to claim 3, characterized in that: The figure-eight fan-shaped plate (35) is attached to the bottom of the arc-shaped feeding channel (31).

8. The high-efficiency twin-screw extruder for high-melt polypropylene according to claim 3, characterized in that: The four arc-shaped feed channels (31) are of the same size.

9. The high-efficiency twin-screw extrusion granulator for high-melt polypropylene according to claim 4, characterized in that: The length of the stirring rod body (48) is less than the size of the feed inlet.

10. A high-efficiency twin-screw extruder for high-melt polypropylene as described in claim 4, characterized in that: The baffle (42) is located at the upper end of the arc-shaped sliding groove (41).

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