Plastic particle mixer

Abstract

The utility model discloses be applied to plastic particle production equipment field's a kind of plastic particle mixer, through the cooperation setting of driving mechanism, dust extraction mechanism and dust extraction type mixing pipe frame, both can utilize driving mechanism to drive dust extraction type mixing pipe frame rotation, to carry out stirring mixing to the plastic particle inside mixing box, again can utilize dust extraction mechanism cooperation dust extraction type mixing pipe frame to suck dust inside mixing box, realize scattered dynamic dust extraction, dust extraction range is larger, and dust removal effect is better;Utilize the differential speed design of first transmission bevel gear and second transmission bevel gear to realize that one motor completes mixing and dust extraction two jobs, it is favorable to save energy consumption;Through the cooperation setting of switching valve and two dust collecting boxes, the air outlet side of casing can be switched to be communicated with any one dust collecting box, when one dust collecting box dusts more, switching valve can be switched to the air outlet side of casing and another dust collecting box are communicated, realize that dust inside dust collecting box is cleaned without stopping machine.

Description

Technical Field

[0001] This utility model relates to the field of plastic particle production equipment, and in particular to a plastic particle mixing machine. Background Technology

[0002] Plastic pellets, also known as plastic granules, are raw materials for storing, transporting, and processing plastics in semi-finished form. They are made primarily of high-molecular-weight synthetic resins, with various auxiliary materials or additives mixed in. In the processing and production of plastic products, some products require the melting of multiple colored plastic pellets to achieve that color. Therefore, the plastic pellets need to be thoroughly mixed before melting to ensure the uniformity of the color mixture after melting.

[0003] A search revealed, for example, a plastic particle mixing device disclosed in patent publication number CN220534606U, comprising a main cylinder with a hollow structure; a drive mechanism fixedly mounted on the upper surface of the main cylinder, with a transmission shaft connected to its output end; a stirring rod assembly fixedly sleeved on the transmission shaft and located inside the main cylinder; a dust removal mechanism installed on the side wall of the main cylinder; a feed hopper fixedly located at the upper part of the main cylinder and communicating with its interior; and a discharge mechanism fixedly located at the bottom of the main cylinder and communicating with it. By adding a dust removal mechanism to the side wall of the main cylinder, plastic dust generated during the mixing process can be effectively removed.

[0004] Based on the above search and combined with existing technology, it was found that existing plastic particle mixing devices similar to those disclosed above only have dust removal ports on the side of the cylinder, making it difficult to remove dust far from the dust removal ports. Utility Model Content

[0005] The core of this invention lies in solving the problem in existing technologies where dust collection ports are only located on the side of the cylinder, making it difficult to remove dust from areas far from these ports. This is achieved through the coordinated design of a drive mechanism, a dust collection mechanism, and a dust-collecting mixing tube frame. Simultaneously, it integrates mixing and dust collection operations, thus saving energy.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A plastic particle mixing machine includes a mixing chamber with an inlet and an outlet at the top and bottom ends, respectively. The mixing chamber is equipped with a dust-collecting mixing tube rack inside, and the top of the dust-collecting mixing tube rack extends to the outside of the mixing chamber. The top of the mixing chamber is equipped with a drive mechanism and a dust collection mechanism. The output end of the drive mechanism is connected to the top of the dust collection mixing tube frame to drive the dust collection mixing tube frame to rotate. The suction end of the vacuuming mechanism is connected to the top of the vacuuming mixing tube frame to work together with the vacuuming mixing tube frame to remove dust from inside the mixing box.

[0008] Furthermore, the top of the mixing chamber is detachably fitted with a cover, and the feed inlet, dust-collecting mixing tube rack, drive mechanism, and dust collection mechanism are all located on the cover.

[0009] Furthermore, the dust-collecting mixing tube rack includes a connecting main tube and multiple mixing branch tubes. The connecting main tube is coaxially arranged with the mixing box, and the top of the connecting main tube passes through the box cover and is connected to the drive mechanism and the dust collection mechanism. Multiple mixing branch tubes are fixedly connected to the side end of the connecting main tube at equal intervals from top to bottom, and both the connecting main tube and the mixing branch tubes are densely covered with dust collection holes.

[0010] Furthermore, the drive mechanism includes a drive motor, a transmission shaft, a first transmission bevel gear, and a second transmission bevel gear; The drive motor is installed on the top of the cover, and a protective shell is installed at the center of the top of the cover. The output end of the drive motor is fixed coaxially with the transmission shaft. The transmission shaft extends to the inside of the protective shell and is fixed coaxially with the first transmission bevel gear. The second transmission bevel gear is fixed coaxially with the connecting main pipe and meshes with the first transmission bevel gear.

[0011] Furthermore, the dust collection mechanism includes a connecting box, a housing, an impeller, and a dust collection box; The connecting box is fixed to the upper end of the protective shell by a bracket. The top end of the connecting main pipe is sealed and rotatably connected to the connecting box. The housing is installed on the upper end of the box cover. The impeller is installed on the part of the drive shaft located inside the housing. The connecting box and the air inlet side of the housing are connected by a conveying pipe. The dust collection box is installed on the air outlet side of the housing. The diameter of the first transmission bevel gear is smaller than the diameter of the second transmission bevel gear.

[0012] Furthermore, there are two dust collection boxes, and a switching valve is installed between the two dust collection boxes and the air outlet side of the casing.

[0013] Furthermore, a scraper is fixed to the end of the mixing branch pipe away from the main connecting pipe, and the scraper is slidably fitted against the inner wall of the mixing box.

[0014] Compared with existing technologies, the advantages of this utility model are: (1) This solution uses a combination of a drive mechanism, a dust collection mechanism and a dust collection mixing tube frame. The drive mechanism can drive the dust collection mixing tube frame to rotate, so as to stir and mix the plastic particles inside the mixing box. The dust collection mechanism can also work with the dust collection mixing tube frame to remove the dust inside the mixing box, thus achieving decentralized dynamic dust collection. The dust collection range is larger and the dust removal effect is better.

[0015] (2) In this scheme, the drive motor drives the impeller to rotate through the transmission shaft to act as a conventional fan. The dust inside the mixing box is sucked into the dust collection box through the dust-collecting mixing pipe rack and the conveying pipe. The differential design of the first transmission bevel gear and the second transmission bevel gear enables one motor to complete the mixing and dust collection operations, which is conducive to saving energy consumption.

[0016] (3) This solution can switch the air outlet side of the casing to be connected to any one of the dust collection boxes by using a switching valve and two dust collection boxes. When one dust collection box has a lot of dust, the switching valve can be used to switch the air outlet side of the casing to be connected to the other dust collection box, so as to clean the dust inside the dust collection box without stopping the machine. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a schematic diagram of the structure of the dust-collecting mixing pipe rack of this utility model; Figure 3 for Figure 2 Enlarged structural diagram at point A; Figure 4 This is a three-dimensional structural diagram of the drive mechanism and dust removal mechanism of this utility model; Figure 5 This is a partial cross-sectional structural diagram of the drive mechanism and dust removal mechanism of this utility model.

[0018] Explanation of the labels in the diagram: 1. Mixing box; 2. Box cover; 3. Connecting main pipe; 4. Mixing branch pipe; 3401. Dust suction hole; 5. Drive motor; 6. Drive shaft; 7. First transmission bevel gear; 8. Second transmission bevel gear; 9. Connecting box; 10. Conveying pipe; 11. Casing; 12. Impeller; 13. Dust collection box; 14. Switching valve; 15. Protective shell; 16. Scraper. Detailed Implementation

[0019] The technical solution will now be clearly and completely described with reference to the accompanying drawings in the embodiments of this utility model.

[0020] First implementation method: Please see Figures 1-5 A plastic particle mixing machine includes a mixing box 1 with an inlet and an outlet at the top and bottom ends, respectively. To facilitate cleaning of the mixing box 1, a box cover 2 is detachably installed on the top of the mixing box 1, for example, by a conventional snap-fit ​​connection, and the inlet is located on the box cover 2.

[0021] The mixing box 1 is equipped with a dust-collecting mixing tube rack inside. Specifically, the dust-collecting mixing tube rack includes a connecting main pipe 3 and multiple mixing branch pipes 4. The connecting main pipe 3 is coaxially arranged with the mixing box 1. The top of the mixing box 1 is equipped with a driving mechanism and a dust-collecting mechanism. The top of the connecting main pipe 3 passes through the box cover 2 and is connected to the driving mechanism and the dust-collecting mechanism. Multiple mixing branch pipes 4 are fixedly connected to the side end of the connecting main pipe 3 at equal intervals from top to bottom. The connecting main pipe 3 and the mixing branch pipes 4 are densely covered with dust-collecting holes 3401.

[0022] The output end of the drive mechanism is connected to the top of the connecting main pipe 3 to drive the dust-collecting mixing tube frame to rotate and stir and mix the plastic particles inside the mixing box 1.

[0023] The suction end of the suction mechanism is connected to the top of the connecting main pipe 3 to cooperate with the suction-type mixing pipe frame to remove dust inside the mixing box 1. The connecting main pipe 3, which is densely covered with suction holes 3401, and the multiple mixing branch pipes 4 are set to achieve decentralized dynamic suction, with a larger suction range and better dust removal effect.

[0024] Furthermore, a scraper 16 is fixed at the end of the mixing branch pipe 4 away from the connecting main pipe 3. The scraper 16 is slidably fitted against the inner wall of the mixing box 1, which can scrape off the plastic dust on the inner wall of the side of the mixing box 1.

[0025] The drive mechanism includes a drive motor 5, a transmission shaft 6, a first transmission bevel gear 7, and a second transmission bevel gear 8. The drive motor 5 is mounted on the top of the cover 2, and a protective shell 15 is installed at the center of the top of the cover 2. The output end of the drive motor 5 is coaxially fixed with the transmission shaft 6. The transmission shaft 6 extends to the inside of the protective shell 15 and is coaxially fixed with the first transmission bevel gear 7. The second transmission bevel gear 8 is coaxially fixed with the connecting main pipe 3 and meshes with the first transmission bevel gear 7. The drive motor 5 drives the first transmission bevel gear 7 to rotate through the transmission shaft 6, and the first transmission bevel gear 7 drives the second transmission bevel gear 8 to rotate, thereby causing the entire dust-collecting mixing tube frame to rotate.

[0026] Second implementation method: The dust collection mechanism includes a connecting box 9, a housing 11, an impeller 12, and a dust collection box 13. The connecting box 9 is fixed to the upper end of the protective shell 15 by a bracket. The top end of the connecting main pipe 3 is sealed and rotatably connected to the connecting box 9. The housing 11 is installed on the upper end of the cover 2. The impeller 12 is installed on the part of the drive shaft 6 located inside the housing 11. The connecting box 9 and the air inlet side of the housing 11 (equivalent to the air inlet side of a conventional fan) are connected by a conveying pipe 10. The dust collection box 13 is installed on the air outlet side of the housing 11 (equivalent to the air outlet side of a conventional fan). The diameter of the first transmission bevel gear 7 is smaller than the diameter of the second transmission bevel gear 8.

[0027] Based on the above structural configuration, the drive motor 5 drives the impeller 12 to rotate via the transmission shaft 6, acting as a conventional fan. The dust inside the mixing box 1 is sucked into the dust collection box 13 through the dust-collecting mixing pipe rack and the conveying pipe 10. The differential speed design of the first transmission bevel gear 7 and the second transmission bevel gear 8 enables one motor to complete both mixing and dust collection operations, which helps to save energy.

[0028] It should be further noted that the shape of impeller 12 in the figure is only for illustration, and the actual shape can be any conventional fan impeller that can achieve the above functions.

[0029] The third implementation method: There are two dust collection boxes 13. A conventional switching valve 14, such as a conventional stainless steel electric valve plate, is installed between the two dust collection boxes 13 and the air outlet side of the casing 11. This valve is used to switch the air outlet side of the casing 11 to be connected to either of the dust collection boxes 13. When one dust collection box 13 has accumulated a lot of dust, the switching valve 14 can be used to switch the air outlet side of the casing 11 to be connected to the other dust collection box 13, so as to clean the dust inside the dust collection box 13 without stopping the machine.

[0030] It should be noted that the specific models and specifications of the electrical equipment involved in this solution need to be selected and determined based on the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, so they will not be described in detail here. The power supply and principles of the electrical equipment involved are clear to those skilled in the art, and will not be described in detail here.

[0031] The above description is merely a preferred embodiment of this utility model; it encompasses all the protection scope of this utility model. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be covered within the protection scope of this utility model.

Claims

1. A plastic particle mixing machine, comprising a mixing chamber (1) with an inlet and an outlet respectively provided at its upper and lower ends, characterized in that: The mixing box (1) is provided with a dust-collecting mixing tube rack on the inside, and the top of the dust-collecting mixing tube rack extends to the outside of the mixing box (1). The top of the mixing box (1) is provided with a driving mechanism and a dust collection mechanism. The output end of the driving mechanism is connected to the top of the dust collection mixing tube frame to drive the dust collection mixing tube frame to rotate. The dust-collecting end of the dust-collecting mechanism is connected to the top of the dust-collecting mixing tube frame to cooperate with the dust-collecting mixing tube frame to remove dust from the inside of the mixing box (1).

2. The plastic particle mixing machine according to claim 1, characterized in that: The top of the mixing box (1) is detachably fitted with a box cover (2), and the feed inlet, dust-collecting mixing tube frame, drive mechanism and dust-collecting mechanism are all located on the box cover (2).

3. A plastic particle mixing machine according to claim 2, characterized in that: The dust-collecting mixing tube rack includes a connecting main tube (3) and multiple mixing branch tubes (4). The connecting main tube (3) is coaxially arranged with the mixing box (1). The top of the connecting main tube (3) passes through the box cover (2) and is connected to the driving mechanism and the dust collection mechanism. The multiple mixing branch tubes (4) are fixedly connected to the side end of the connecting main tube (3) at equal intervals from top to bottom. Both the connecting main tube (3) and the mixing branch tubes (4) are densely covered with dust collection holes (3401).

4. A plastic particle mixing machine according to claim 3, characterized in that: The drive mechanism includes a drive motor (5), a transmission shaft (6), a first transmission bevel gear (7), and a second transmission bevel gear (8); The drive motor (5) is installed on the top of the cover (2). A protective shell (15) is installed at the center of the top of the cover (2). The output end of the drive motor (5) is fixed coaxially with the transmission shaft (6). The transmission shaft (6) extends to the inside of the protective shell (15) and is fixed coaxially with the first transmission bevel gear (7). The second transmission bevel gear (8) is fixed coaxially with the connecting main pipe (3) and meshes with the first transmission bevel gear (7).

5. A plastic particle mixing machine according to claim 4, characterized in that: The dust collection mechanism includes a connecting box (9), a housing (11), an impeller (12), and a dust collection box (13). The connecting box (9) is fixed to the upper end of the protective shell (15) by a bracket. The top end of the connecting main pipe (3) is sealed and rotatably connected to the connecting box (9). The housing (11) is installed on the upper end of the box cover (2). The impeller (12) is installed on the part of the drive shaft (6) located inside the housing (11). The connecting box (9) and the air inlet side of the housing (11) are connected by a conveying pipe (10). The dust collection box (13) is installed on the air outlet side of the housing (11). The diameter of the first transmission bevel gear (7) is smaller than the diameter of the second transmission bevel gear (8).

6. A plastic particle mixing machine according to claim 5, characterized in that: There are two dust collection boxes (13), and a switching valve (14) is installed between the two dust collection boxes (13) and the air outlet side of the casing (11).

7. A plastic particle mixing machine according to claim 3, characterized in that: The end of the mixing branch pipe (4) away from the connecting main pipe (3) is fixed with a scraper (16), and the scraper (16) is slidably attached to the inner wall of the mixing box (1).

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