A plastic raw material premixing device

Abstract

This utility model discloses a pre-mixing device for plastic raw materials, belonging to the field of plastic raw material processing technology. The utility model includes a mixing tank, which comprises a tank body with spiral ridges on the inner wall and a lid on the top. A rotating component is located in the center of the lid. The rotating component includes a connecting block with slots on both sides, which engage with a fixing component. The bottom of the fixing component is connected to a mixing shaft via a snap-fit. The snap-fit ​​includes a threaded cylinder and an annular threaded sleeve. The threaded cylinder has a groove inside, and the annular threaded sleeve has a cross block in the center, with the groove engaging with the cross block. This utility model, through its snap-fit ​​structural design, connects the mixing shaft and the rotating component. The engagement of the threaded cylinder and the annular threaded sleeve enables quick assembly and disassembly, reducing operation time. The slotted engagement between the fixing component and the connecting block enhances structural stability and facilitates the replacement or cleaning of the mixing components, improving maintenance and operational convenience.

Description

Technical Field

[0001] This utility model relates to the field of plastic raw material processing technology, specifically to a plastic raw material pre-mixing device. Background Technology

[0002] Plastic raw materials usually need to be pre-mixed before processing to ensure that the different components are fully mixed, thereby improving the quality of subsequent molding or processing. Common pre-mixing devices often use a mixing tank with a rotating mixing shaft. The mixing shaft is driven by a motor to rotate, so that the raw materials in the tank are evenly mixed.

[0003] In the existing technology, there is still room for optimization in the structural design of the mixing device. For example, the connection method between the mixing shaft and the drive component may affect the convenience of disassembly and maintenance, and the structure of the inner wall of the mixing tank also has a certain impact on the flowability and mixing efficiency of the raw materials. Therefore, a plastic raw material pre-mixing device is proposed to address the above issues. Utility Model Content

[0004] The purpose of this invention is to provide a premixing device for plastic raw materials.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model relates to a pre-mixing device for plastic raw materials, including a mixing tank. The mixing tank includes a tank body with spiral ridges on the inner wall and a lid on the top of the tank body. A rotating component is located in the center of the lid. The rotating component includes a connecting block with slots on both sides. The slots engage with a fixing component, and the bottom of the fixing component is connected to a mixing shaft via a snap fastener. The snap fastener includes a threaded cylinder and an annular threaded sleeve. The threaded cylinder has a groove inside, and the annular threaded sleeve has a cross block in the center. The groove engages with the cross block.

[0007] Furthermore, a threaded sleeve is provided around the annular threaded sleeve, the threaded sleeve is threadedly connected to a threaded cylinder, and the bottom of the annular threaded sleeve is fixedly connected to a stirring shaft.

[0008] Furthermore, a groove is provided on one side of the bucket lid, and a feeding hopper is installed in the groove.

[0009] Furthermore, the bottom of the barrel is provided with an opening, and a discharge pipe is installed inside the opening.

[0010] Furthermore, a rotating shaft is provided on the top of the connecting block, and a motor is connected to the top of the rotating shaft.

[0011] Furthermore, the fastener includes a fastening block, and a cross-shaped locking block is provided on one side of the fastening block, which engages with a locking groove.

[0012] This utility model has the following beneficial effects:

[0013] This utility model features a snap-fit ​​structure design, where the stirring shaft and the rotating component are connected by a snap-fit. The use of a threaded cylinder and an annular threaded sleeve enables quick assembly and disassembly, reducing operation time. The slotted fit between the fixing component and the connecting block enhances the stability of the structure and facilitates the replacement or cleaning of the stirring components, thus improving the convenience of maintenance and operation.

[0014] This invention uses a spiral rib structure design to guide the plastic raw materials to form a spiral flow during the mixing process, reducing material accumulation and dead corners. The combination of the spiral rib and the rotating mixing shaft can generate stronger shear force and convection, allowing raw materials of different components to be mixed more fully and improving the uniformity of pre-mixing. The rotating component structure ensures stable operation of the mixing shaft, avoiding uneven mixing caused by vibration or displacement, and improving the overall mixing efficiency.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the device;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the device;

[0018] Figure 3 This is a schematic diagram of the rotating component.

[0019] Figure 4 This is a structural diagram of the buckle and fastener.

[0020] In the diagram: 1. Mixing tank; 101. Tank body; 102. Spiral ridge; 103. Tank lid; 104. Feeding hopper; 105. Discharge pipe; 2. Rotating assembly; 201. Connecting block; 202. Rotating shaft; 203. Slot; 3. Fixing component; 301. Fixing block; 302. Cross-shaped locking block; 4. Buckle; 401. Threaded cylinder; 402. Annular threaded sleeve; 403. Groove; 404. Cross-shaped block; 405. Threaded sleeve; 5. Mixing shaft. 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 Figure 1-4This utility model provides a technical solution: a plastic raw material pre-mixing device, including a mixing tank 1, the mixing tank 1 including a tank body 101, the inner wall of the tank body 101 is provided with a spiral protrusion 102, the top of the tank body 101 is provided with a tank cover 103, a groove is opened on one side of the tank cover 103, a feeding hopper 104 is provided in the groove, the bottom of the tank body 101 is provided with an opening, a discharge pipe 105 is provided in the opening, and a rotating component 2 is provided in the middle of the tank cover 103.

[0023] In this embodiment, the spiral protrusions 102 provided on the inner wall of the barrel 101 play a guiding role during the stirring process. When the motor drives the rotating shaft 202 to rotate the stirring shaft 5, the spiral protrusions 102 and the stirring blades work together to make the plastic raw material move along the barrel wall in a spiral trajectory, forming a three-dimensional convection mixing, breaking the laminar flow state of the raw material, and enhancing the radial and axial mixing effect. It is especially suitable for high viscosity or easily agglomerated plastic granules. The spiral protrusions 102 can reduce the adhesion of raw materials on the barrel wall, improve the stirring efficiency, avoid local overheating or uneven mixing, and ensure that the pre-mixing quality meets the requirements of subsequent processing.

[0024] The feeding hopper 104 is installed in the side groove of the barrel cover 103, which can realize the feeding of raw materials and reduce manual intervention. The discharge pipe 105 is located at the bottom of the barrel body 101, which uses gravity to realize the rapid discharge of materials after stirring, which is conducive to thoroughly emptying the residue in the barrel.

[0025] The rotating component 2 includes a connecting block 201, a rotating shaft 202 is provided on the top of the connecting block 201, a motor is connected to the top of the rotating shaft 202, and slots 203 are provided on both sides of the connecting block 201. The slots 203 cooperate with the fixing component 3. The fixing component 3 includes a fixing block 301, and a cross-shaped locking block 302 is provided on one side of the fixing block 301. The cross-shaped locking block 302 cooperates with the slot 203.

[0026] In this embodiment, the rotating component 2 is fixedly connected to the rotating shaft 202 at the output end of the motor via the connecting block 201, transmitting power to the stirring shaft 5. The slots 203 on both sides of the connecting block 201 and the cross-shaped locking block 302 of the fixing member 3 form an insertion fit, realizing quick alignment and installation to ensure transmission stability. The fixing block 301 of the fixing member 3 is easy to disassemble and maintain, making it suitable for production scenarios where the stirring shaft 5 is frequently replaced or cleaned and maintained.

[0027] The bottom of the fixing part 3 is connected to the stirring shaft 5 via a buckle 4. The buckle 4 includes a threaded cylinder 401 and an annular threaded sleeve 402. A groove 403 is opened inside the threaded cylinder 401. A cross block 404 is provided in the middle of the annular threaded sleeve 402. The groove 403 cooperates with the cross block 404. A threaded sleeve 405 is provided around the annular threaded sleeve 402. The threaded sleeve 405 is threadedly connected to the threaded cylinder 401. The bottom of the annular threaded sleeve 402 is fixedly connected to the stirring shaft 5.

[0028] In this embodiment, the buckle 4 adopts a nested structure of threaded cylinder 401 and annular threaded sleeve 402. Axial positioning is achieved by the engagement of groove 403 and cross block 404, and radial fixation is achieved by tightening threaded sleeve 405. This ensures the concentricity of stirring shaft 5 and rotating assembly 2, avoids eccentric vibration, and can be completed by simply rotating threaded sleeve 405. The rigid connection between the bottom of annular threaded sleeve 402 and stirring shaft 5 further enhances the transmission reliability, so that the overall structure can remain stable during high-speed stirring, reducing maintenance time and operation difficulty.

[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A pre-mixing device for plastic raw materials, characterized in that, The mixing tank (1) includes a tank body (101), the inner wall of the tank body (101) is provided with a spiral protrusion (102), the top of the tank body (101) is provided with a lid (103), and a rotating component (2) is provided in the middle of the lid (103). The rotating component (2) includes a connecting block (201), and slots (203) are provided on both sides of the connecting block (201). The slots (203) cooperate with the fixing member (3). The bottom of the fixing member (3) is connected to the stirring shaft (5) through a buckle (4). The buckle (4) includes a threaded cylinder (401) and an annular threaded sleeve (402). The threaded cylinder (401) has a groove (403) inside. The annular threaded sleeve (402) has a cross block (404) in the middle. The groove (403) cooperates with the cross block (404).

2. The plastic raw material pre-mixing device according to claim 1, wherein The annular threaded sleeve (402) is surrounded by a threaded sleeve (405), which is threadedly connected to a threaded cylinder (401). The bottom of the annular threaded sleeve (402) is fixedly connected to a stirring shaft (5).

3. The plastic raw material pre-mixing device according to claim 1, wherein A groove is provided on one side of the barrel lid (103), and a feeding hopper (104) is provided in the groove.

4. The plastic raw material pre-mixing device according to claim 1, wherein The bottom of the barrel (101) is provided with an opening, and a discharge pipe (105) is provided in the opening.

5. The plastic raw material premixing device according to claim 1, characterized in that, The top of the connecting block (201) is provided with a rotating shaft (202), and the top of the rotating shaft (202) is connected to a motor.

6. The plastic raw material pre-mixing device according to claim 1, wherein The fastener (3) includes a fastening block (301), and a cross-shaped locking block (302) is provided on one side of the fastening block (301), which cooperates with the locking groove (203).

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