A plastic expansion agent powder granulating and forming device

Abstract

The utility model discloses a kind of plastic expansion agent powder granulation forming devices, it is related to powder granulation forming technical field, including granulation forming box, collection box, driving motor, driving motor driving shaft coupling drives rotating shaft rotation, to drive the rotation of the two fixed frames of protective cylinder outer wall, limiting seat can play the limiting effect to the rotation of rotating shaft, after rotating in first outer turntable, multiple first granulation holes in the top of second outer turntable, its powder granulation is formed in first outer turntable, second outer turntable, multiple second granulation holes in the top of granulation ring, effectively assist first outer turntable, second outer turntable further granulation work, elastic positioning rod connects first inner turntable, second inner turntable, realize to improve powder granulation efficiency, auxiliary knock ball and elastic positioning rod outer wall contact, the elastic positioning rod impacted can be shaken off the work of the split body in first granulation hole and second granulation hole, guiding frame, movable rod can be to the limiting effect of auxiliary rod, auxiliary knock ball.

Description

Technical Field

[0001] This utility model relates to the field of powder granulation and molding technology, and in particular to a plastic expansion agent powder granulation and molding device. Background Technology

[0002] Plastic expansion agents, as functional additives, are widely used in building materials such as concrete and mortar. Their main function is to compensate for material shrinkage and improve crack resistance by generating moderate expansion during the hardening process. However, plastic expansion agents are usually in the form of ultrafine powders, which are prone to flying and poor dispersibility when used directly, and are also prone to agglomeration during mixing, affecting the uniformity of their expansion performance. Therefore, granulation processes are needed to process the powder into particles with a certain particle size and strength to improve their flowability, dispersibility, and performance. The single granulation disc structure results in uneven residence time of materials during granulation, making it difficult for fine powder particles to be fully coated and agglomerated. The granulation cycle is long, and the lack of effective classification and auxiliary granulation structures leads to a wide particle size distribution and uneven strength. Powder materials are prone to adhere to the granulation holes, causing pore blockage after long-term operation. This affects the continuous operation of the equipment, and after blockage, it is necessary to stop the machine for disassembly and cleaning, increasing maintenance costs and the risk of production interruption. Utility Model Content

[0003] The main objective of this invention is to provide a plastic expander powder granulation and molding device, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A granulation and molding device for plastic expansion agent powder includes a granulation and molding box, a collection box, and a drive motor. The output end of the drive motor is connected to a coupling, and the output end of the coupling is connected to a rotating shaft. The bottom of the rotating shaft is connected to a limiting seat via a movable shaft. A protective cylinder is connected to the outer wall of the rotating shaft. Two fixed frames are connected to the outer wall of each protective cylinder. A limiting cylinder is connected to one end of the top of each of the two fixed frames. A connecting rod is connected to the top of each limiting cylinder. A first outer rotating disk and a second outer rotating disk are respectively connected to the top of the connecting rod. Multiple first granulation holes are opened at the outer ends of the tops of the first and second outer rotating disks. A first inner rotating disk is connected to the middle of the tops of the first and second outer rotating disks. Multiple elastic positioning rods are connected to the outer ends of the tops of the first inner rotating disks. The tops of the multiple elastic positioning rods are connected to the second inner rotating disks.

[0005] As a preferred embodiment of this utility model, the inner sides of the first inner turntable and the second inner turntable are connected to granulation rings via mounting rods. The top of each granulation ring is provided with multiple second granulation holes. Both ends of the inner side of the granulation molding box are connected to guide frames. One end of the inner side of each guide frame is connected to a movable rod. The outer wall of each movable rod is fitted with a limiting sleeve. The outer wall of each limiting sleeve is connected to an auxiliary rod. The ends of each of the auxiliary rods away from the limiting sleeve are connected to auxiliary striking balls.

[0006] In a preferred embodiment of this utility model, the drive motor is connected to the rotating shaft via the coupling, the rotating shaft is rotatably connected to the limiting seat via a movable shaft, and the protective sleeve is fitted onto the outer wall of the rotating shaft.

[0007] As a preferred embodiment of this utility model, the rotating shaft is fixedly connected to the two fixed frames, the two fixed frames are rotatably connected to the two limiting cylinders, the limiting cylinders are rotatably connected to the connecting rods, and the connecting rods are all fixedly connected to the first outer turntable and the second outer turntable.

[0008] As a preferred embodiment of this utility model, the first outer turntable and the second outer turntable are both fixedly connected to the first inner turntable, the first inner turntable is rotatably connected to the plurality of elastic positioning rods, and the elastic positioning rods are rotatably connected to the second inner turntable.

[0009] As a preferred embodiment of this utility model, the granulation rings are rotatably connected to the inner surfaces of the first inner turntable and the second inner turntable via mounting rods, and the outer walls of the plurality of elastic positioning rods can contact the outer wall of the auxiliary striking ball.

[0010] As a preferred embodiment of this utility model, the guide frame is fixedly connected to the inner side of the granulation molding box, the guide frame is rotatably connected to the movable rod, the limiting sleeve is sleeved on the outer wall of the movable rod, the limiting sleeve is rotatably connected to the auxiliary rod, and the auxiliary rod is rotatably connected to the auxiliary striking ball.

[0011] Beneficial effects Compared with the prior art, the present invention has the following beneficial effects: This plastic expander powder granulation and molding device uses a drive motor to drive a coupling, which in turn drives a rotating shaft to rotate. This, in turn, rotates two fixed frames on the outer wall of the protective cylinder, enabling the first outer rotating disk, the second outer rotating disk, the first inner rotating disk, and the second inner rotating disk to rotate. A limiting seat restricts the rotation of the shaft. Multiple first granulation holes on the top of the first and second outer rotating disks granulate the powder after rotation. Multiple second granulation holes on the top of the granulation ring effectively assist the first and second outer rotating disks in further granulation. An elastic positioning rod connects the first and second inner rotating disks, improving granulation efficiency. An auxiliary striking ball contacts the outer wall of the elastic positioning rod; the impacted elastic positioning rod can dislodge the parts stuck in the first and second granulation holes. A guide frame and a movable rod limit the use of the auxiliary rod and auxiliary striking ball. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the mounting structure of the fixing frame of this utility model; Figure 3 This is a schematic diagram of the installation structure of the first outer turntable and the first inner turntable of this utility model; Figure 4 This is a schematic diagram of structure A of this utility model; Figure 5 This is a schematic diagram of the auxiliary striking ball installation structure of this utility model.

[0013] In the diagram: 1. Granulation box; 2. Collection box; 3. Drive motor; 4. Coupling; 5. Rotating shaft; 6. Protective cylinder; 7. Limiting seat; 8. Fixing frame; 9. Limiting cylinder; 10. Connecting rod; 11. First outer turntable; 12. Second outer turntable; 13. First granulation hole; 14. First inner turntable; 15. Elastic positioning rod; 16. Second inner turntable; 17. Granulation ring; 18. Second granulation hole; 19. Guide frame; 20. Movable rod; 21. Limiting sleeve; 22. Auxiliary rod; 23. Auxiliary striking ball. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] like Figures 1-5As shown, a plastic expansion agent powder granulation and molding device includes a granulation and molding box 1, a collection box 2, and a drive motor 3. The output end of the drive motor 3 is connected to a coupling 4, and the output end of the coupling 4 is connected to a rotating shaft 5. The bottom of the rotating shaft 5 is connected to a limiting seat 7 via a movable shaft. A protective cylinder 6 is connected to the outer wall of the rotating shaft 5. Two fixing frames 8 are connected to the outer wall of the protective cylinder 6. A limiting cylinder 9 is connected to one end of the top of each of the two fixing frames 8. A connecting rod 10 is connected to the top of the limiting cylinder 9. A first outer rotating disk 11 and a second outer rotating disk 12 are respectively connected to the top of the connecting rod 10. Multiple first granulation holes 13 are opened at the outer ends of the tops of the first outer rotating disk 11 and the second outer rotating disk 12. A first inner rotating disk 14 is connected to the middle of the tops of the first outer rotating disk 11 and the second outer rotating disk 12. Multiple elastic positioning rods 15 are connected to the outer ends of the tops of the first inner rotating disk 14. A second inner rotating disk 16 is connected to the tops of the multiple elastic positioning rods 15. The drive motor 3 is connected to the rotating shaft 5 via the coupling 4. The rotating shaft 5 is rotatably connected to the limiting seat 7 via the movable shaft. The protective cylinder 6 is sleeved on the outer wall of the rotating shaft 5. The rotating shaft 5 is fixedly connected to two fixed frames 8. The two fixed frames 8 are rotatably connected to two limiting cylinders 9. The limiting cylinders 9 are rotatably connected to the connecting rods 10. The connecting rods 10 are all fixedly connected to the first outer turntable 11 and the second outer turntable 12. The first outer turntable 11 and the second outer turntable 12 are all fixedly connected to the first inner turntable 14. The first inner turntable 14 is rotatably connected to multiple elastic positioning rods 15. The elastic positioning rods 15 are rotatably connected to the second inner turntable 16. Specifically, the protective cylinder 6 is fitted onto the outside of the rotating shaft 5, the rotating shaft 5 is supported by the bearing of the limiting seat 7, the two fixing brackets 8 are welded to the outer wall of the protective cylinder 6, and the first outer rotating plate 11 and the second outer rotating plate 12 are fixed to the fixing brackets 8 by bolts. The first inner rotating plate 14 and the second inner rotating plate 16 are connected by the elastic positioning rod 15, which is made of spring steel. The drive motor 3 drives the rotating shaft 5 to rotate through the coupling 4. The rotating shaft 5 drives the first outer rotating disk 11 and the second outer rotating disk 12 to rotate synchronously through the fixed frame 8. The limiting seat 7 suppresses axial vibration. The powder enters the first granulation hole 13 under the action of centrifugal force and initially forms columnar particles. During the rotation, the staggered arrangement of the first outer rotating disk 11 and the second outer rotating disk 12 avoids material accumulation. The primary particles fall between the first inner rotating disk 14 and the granulation ring 17. The second granulation hole 18 performs secondary extrusion and shaping. The elastic positioning rod 15 connects the first inner rotating disk 14 and the second inner rotating disk 16 to adapt to changes in material flowability.

[0016] The inner sides of the first inner turntable 14 and the second inner turntable 16 are connected to a granulation ring 17 by a mounting rod. The top of the granulation ring 17 is provided with multiple second granulation holes 18. The two ends of the inner side of the granulation molding box 1 are connected to guide frames 19. One end of the inner side of the guide frame 19 is connected to a movable rod 20. The outer wall of the movable rod 20 is fitted with a limit sleeve 21. The outer wall of the limit sleeve 21 is connected to an auxiliary rod 22. The ends of the multiple auxiliary rods 22 away from the limit sleeve 21 are connected to auxiliary striking balls 23. The granulation rings 17 are rotatably connected to the inner sides of the first inner turntable 14 and the second inner turntable 16 via mounting rods. The outer walls of multiple elastic positioning rods 15 can contact the outer wall of the auxiliary striking ball 23. The guide frame 19 is fixedly connected to the inner side of the granulation molding box 1 and is rotatably connected to the movable rod 20. The limiting sleeve 21 is sleeved on the outer wall of the movable rod 20 and is rotatably connected to the auxiliary rod 22. The auxiliary rod 22 is rotatably connected to the auxiliary striking ball 23. Specifically, the granulation ring 17 is rotatably connected to the inner side of the inner turntable via the mounting rod. Guide frames 19 are fixed on both sides of the granulation molding box 1. The movable rod 20 is inserted into the groove of the guide frame 19 and fitted with the limiting sleeve 21. The auxiliary rod 22 is connected to the limiting sleeve 21, and the end is fitted with an auxiliary striking ball 23. The striking ball is made of polyurethane. When the particles are stuck in the granulation hole, the auxiliary striking ball 23 swings back and forth in the guide frame 19 with the movable rod 20. The striking ball 23 hits the elastic positioning rod 15, generating high-frequency vibration, shaking off the blockage. The limiting sleeve 21 restricts the stroke of the movable rod 20 to prevent the auxiliary striking ball 23 from excessive displacement. The elastic positioning rod 15 absorbs the impact energy to avoid damage to the turntable structure.

[0017] It should be noted that this utility model is a granulation and molding device for plastic expansion agent powder. During use, the drive motor 3 is started, and the rotating shaft 5 is driven to rotate at low speed through the coupling 4, bringing all moving parts inside the equipment into a stable working state. Simultaneously, the limiting effect of the limiting seat 7 on the rotating shaft 5 is checked. Under centrifugal force, the powder enters the first granulation hole 13. The hole wall applies extrusion and shearing force to the powder, forming primary particles. During rotation, some incompletely formed fine powder is thrown to the area of ​​the second granulation hole 18 of the granulation ring 17, where it is further compacted through secondary extrusion. The first inner rotating disk 14 and the second inner rotating disk 16 are connected by an elastic positioning rod 15 and rotate synchronously with the outer rotating disk. The elastic positioning rod 15 deforms slightly under centrifugal force, adjusting the gap between the inner and outer rotating disks to ensure... The powder is uniformly filled and enters the annular area between the first inner rotating disk 14 and the second inner rotating disk 16. Through repeated kneading and squeezing, the particle strength is improved. When the first granulation hole 13 or the second granulation hole 18 is blocked due to powder adhesion, the rotation speed fluctuation of the rotating shaft 5 is captured by the sensor. The movable rod 20 slides in the guide frame 19, driving the limit sleeve 21 and the auxiliary rod 22 to move, so that the auxiliary striking ball 23 hits the elastic positioning rod 15. The vibration wave generated by the impact is transmitted to the granulation hole through the elastic positioning rod 15, shaking off the blocking material such as agglomerated powder or hard impurities. After clearing the blockage, the auxiliary striking ball 23 is reset to the initial position under the action of gravity through the movable rod 20. The formed particles are separated from the first granulation hole 13 and the second granulation hole 18 under the action of centrifugal force and fall into the collection box 2.

[0018] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A granulation and molding device for plastic expansion agent powder, comprising a granulation and molding box (1), a collection box (2), and a drive motor (3), characterized in that: The output end of the drive motor (3) is connected to a coupling (4), the output end of the coupling (4) is connected to a rotating shaft (5), the bottom of the rotating shaft (5) is connected to a limiting seat (7) via a movable shaft, the outer wall of the rotating shaft (5) is connected to a protective cylinder (6), the outer wall of the protective cylinder (6) is connected to two fixing brackets (8), one end of the top of each of the two fixing brackets (8) is connected to a limiting cylinder (9), the top of the limiting cylinder (9) is connected to a connecting rod (10), the connecting rod (10) The top of each is connected to a first outer turntable (11) and a second outer turntable (12). The outer ends of the top of the first outer turntable (11) and the second outer turntable (12) are provided with multiple first granulation holes (13). The middle part of the top of the first outer turntable (11) and the second outer turntable (12) is connected to a first inner turntable (14). The outer end of the top of the first inner turntable (14) is connected to multiple elastic positioning rods (15). The top of the multiple elastic positioning rods (15) is connected to a second inner turntable (16).

2. The plastic expansion agent powder granulation and molding device according to claim 1, characterized in that: The inner sides of the first inner turntable (14) and the second inner turntable (16) are connected to a granulation ring (17) by a mounting rod. The top of the granulation ring (17) is provided with multiple second granulation holes (18). The two ends of the inner side of the granulation molding box (1) are connected to a guide frame (19). One end of the inner side of the guide frame (19) is connected to a movable rod (20). The outer wall of the movable rod (20) is fitted with a limit sleeve (21). The outer wall of the limit sleeve (21) is connected to an auxiliary rod (22). The ends of the multiple auxiliary rods (22) away from the limit sleeve (21) are connected to an auxiliary striking ball (23).

3. The plastic expansion agent powder granulation and molding device according to claim 1, characterized in that: The drive motor (3) is connected to the rotating shaft (5) via the coupling (4), the rotating shaft (5) is rotatably connected to the limiting seat (7) via the movable shaft, and the protective cylinder (6) is sleeved on the outer wall of the rotating shaft (5).

4. The plastic expansion agent powder granulation and molding device according to claim 1, characterized in that: The rotating shaft (5) is fixedly connected to the two fixed frames (8), the two fixed frames (8) are rotatably connected to the two limiting cylinders (9), the limiting cylinders (9) are rotatably connected to the connecting rods (10), and the connecting rods (10) are fixedly connected to the first outer turntable (11) and the second outer turntable (12).

5. The plastic expansion agent powder granulation and molding device according to claim 1, characterized in that: The first outer turntable (11) and the second outer turntable (12) are both fixedly connected to the first inner turntable (14). The first inner turntable (14) is rotatably connected to a plurality of elastic positioning rods (15). The elastic positioning rods (15) are rotatably connected to the second inner turntable (16).

6. The plastic expansion agent powder granulation and molding device according to claim 2, characterized in that: The granulation rings (17) are all rotatably connected to the inner sides of the first inner turntable (14) and the second inner turntable (16) via mounting rods, and the outer walls of the multiple elastic positioning rods (15) can contact the outer wall of the auxiliary striking ball (23).

7. The plastic expansion agent powder granulation and molding device according to claim 2, characterized in that: The guide frame (19) is fixedly connected to the inner side of the granulation molding box (1), the guide frame (19) is rotatably connected to the movable rod (20), the limiting sleeve (21) is sleeved on the outer wall of the movable rod (20), the limiting sleeve (21) is rotatably connected to the auxiliary rod (22), and the auxiliary rod (22) is rotatably connected to the auxiliary striking ball (23).

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