Mixing and stirring device for producing polypropylene particles
By optimizing the polypropylene granule production unit with a single-unit stirring structure and transmission monitoring system, the problems of high cost and poor stirring effect caused by multiple stirring units were solved, achieving uniform stirring and equipment protection.
Patent Information
- Application Number
- CN202422920449.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-28
AI Technical Summary
In existing polypropylene granule production equipment, the multiple sets of stirring structures result in high costs and poor stirring effect, which need to be improved.
It adopts a single-unit stirring structure, which drives the baffle plate to stir in the loop groove through the drive structure, and combined with the transmission structure to achieve uniform stirring of polypropylene raw materials. The stirring status is monitored by a pressure sensor to prevent blockage, and the feeding structure is optimized to reduce equipment damage.
This method achieves uniform mixing of polypropylene granules, reduces production costs, ensures normal operation of the equipment, and avoids equipment damage caused by blockages.
Smart Images
Figure CN223493609U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polypropylene granule production technology, and more specifically, to a mixing and stirring device for polypropylene granule production. Background Technology
[0002] Plastic products made from polypropylene granules typically possess high strength, rigidity, and transparency, and are widely used in the manufacture of food containers, household goods, pipes, sinks, and more. Furthermore, polypropylene granules can also be used to manufacture insulation layers for wires and cables, smartphone casings, and brackets for electronic products, among other electrical and electronic devices.
[0003] However, the production process of polypropylene granules requires mixing and stirring the raw materials. In existing equipment, the mixture is transported from the bottom of the equipment to the mixing drum by an auger. However, the auger is often located in the middle of the mixing drum, which means that two or more sets of agitators are often used when stirring, which increases the cost of the equipment. Therefore, it is necessary to improve and optimize the mixing and stirring equipment for polypropylene granule production. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, this utility model provides a mixing and stirring device for the production of polypropylene granules, which has the advantages of using a single set of stirring, reducing costs, and achieving good stirring effect.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a mixing and stirring device for polypropylene granule production, comprising a mixing tank, a driving structure fixedly connected to the top of the mixing tank, a rotating frame fixedly connected to the lower surface of the driving structure, a connecting rod fixedly connected to the lower surface of the rotating frame, a lever fixedly connected to the lower curved surface of the connecting rod, a feeding structure provided inside the mixing tank, a support frame fixedly connected to the surface of the feeding structure, a U-shaped groove fixedly connected to the upper surface of the support frame, a circular baffle movably connected to the lower surface of the U-shaped groove, a connecting strip fixedly connected to the lower surface of the circular baffle, a movable groove opened on one side of the U-shaped groove, the connecting strip movably connected inside the movable groove, and a transmission structure fixedly connected to the upper part of the connecting strip.
[0006] As a preferred technical solution of this utility model: a fixing block is fixedly connected to the inner wall of the mixing tank, a sliding groove is opened at the lower part of the fixing block, a pressure sensor is fixedly connected to the upper part of the sliding groove, a slider is movably connected inside the sliding groove, a fixing plate is fixedly connected to the lower surface of the slider, and a spring is fixedly connected between the upper surface of the fixing plate and the lower surface of the fixing block.
[0007] As a preferred technical solution of this utility model: the spring is sleeved on the outside of the fixed plate, the lower surface of the fixed block is fixedly connected to a protective shell, and the spring is located inside the protective shell.
[0008] As a preferred technical solution of this utility model: the driving structure includes a bracket fixedly connected to the upper surface of the mixing tank, a first motor fixedly installed on the upper surface of the bracket, a coupling fixedly connected to the output shaft of the first motor, and the interior of the coupling fixedly connected to the rotating frame.
[0009] As a preferred technical solution of this utility model: the transmission structure includes a second motor fixedly connected to the upper surface of the mixing tank, an incomplete gear fixedly connected to the output shaft of the second motor, a rack fixedly connected to the upper surface of the connecting strip, the incomplete gear meshing with the rack, the connecting strip being movably connected to the upper part of the mixing tank, a dustproof shell fixedly connected to the upper part of the mixing tank, the output shaft of the second motor being rotatably connected inside the dustproof shell, and the incomplete gear being located inside the dustproof shell.
[0010] As a preferred technical solution of this utility model: a feeding funnel is fixedly connected to the lower part of the mixing barrel, a control discharge port is opened on the left side surface of the mixing barrel, a fixing frame is fixedly connected to the surface of the mixing barrel, and the feeding funnel is fixedly connected to the fixing frame.
[0011] As a preferred technical solution of this utility model: the feeding structure includes a third motor fixedly connected to the lower surface of the feeding hopper, the output shaft of the third motor passes through the feeding hopper, the output shaft of the third motor is fixedly connected to an auger, the lower inner side of the mixing tank is fixedly connected to a limiting cylinder, the auger is located inside the limiting cylinder, and the upper part of the limiting cylinder is fixedly connected to a diversion hopper.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model uses a drive structure to move a baffle plate inside a U-shaped groove to stir polypropylene mixed raw materials. When the polypropylene mixed raw materials overflow into the U-shaped groove, they will fall to the lower inner side of the mixing tank due to gravity. At the same time, the drive structure can be activated in conjunction with the stirring action of the baffle plate to make the polypropylene mixed raw materials fall from the circular baffle. Compared with traditional devices, where the feeding mechanism and stirring structure are located in the center and cause a conflict, resulting in high stirring costs, this device uses a single stirring unit to ensure that all polypropylene mixed raw materials participate in the stirring, resulting in better stirring effect.
[0014] 2. When the slider of this utility model contacts the pressure sensor, it will send a signal to the external control system and issue an alarm, so that the staff will know not to add polypropylene mixed raw materials into the feeding funnel. This prevents the circular baffle from being blocked by the polypropylene mixed raw materials on the inner side of the lower part of the mixing tank, which would affect the operation of the transmission structure and thus damage the transmission structure. This device can inform the staff when to stop adding polypropylene mixed raw materials, thereby ensuring the normal operation of the entire device. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the third motor structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the connecting strip structure of this utility model;
[0018] Figure 4 This is a schematic cross-sectional view of the mixing tank of this utility model;
[0019] Figure 5 This is a schematic diagram of the circular baffle structure of this utility model;
[0020] Figure 6 This is a schematic diagram of the pressure sensor structure of this utility model;
[0021] Figure 7 This is an exploded view of the incomplete gear and dust cover of this utility model.
[0022] In the diagram: 1. Mixing tank; 2. Rotating frame; 3. Connecting rod; 4. Paddle plate; 5. Support frame; 6. Hobbit groove; 7. Circular baffle; 8. Connecting strip; 9. Fixing block; 10. Slide groove; 11. Pressure sensor; 12. Sliding block; 13. Fixing plate; 14. Spring; 15. Protective shell; 16. Bracket; 17. First motor; 18. Coupling; 19. Second motor; 20. Incomplete gear; 21. Rack; 22. Dustproof shell; 23. Feeding funnel; 24. Control discharge port; 25. Fixing frame; 26. Third motor; 27. Screwdriver; 28. Limiting cylinder; 29. Diverting funnel; 30. Movable groove. Detailed Implementation
[0023] 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.
[0024] like Figures 1 to 7 As shown, this utility model provides a mixing and stirring device for the production of polypropylene granules, including a mixing tank 1. A driving structure is fixedly connected to the top of the mixing tank 1. A rotating frame 2 is fixedly connected to the lower surface of the driving structure. A connecting rod 3 is fixedly connected to the lower surface of the rotating frame 2. A lever 4 is fixedly connected to the lower curved surface of the connecting rod 3. A feeding structure is provided inside the mixing tank 1. A support frame 5 is fixedly connected to the surface of the feeding structure. A loop groove 6 is fixedly connected to the upper surface of the support frame 5. A circular baffle 7 is movably connected to the lower surface of the loop groove 6. A connecting strip 8 is fixedly connected to the lower surface of the circular baffle 7. A movable groove 30 is opened on one side of the loop groove 6. The connecting strip 8 is movably connected inside the movable groove 30. A transmission structure is fixedly connected to the upper part of the connecting strip 8.
[0025] When the worker pours the polypropylene mixture into the feeding funnel 23, the feeding structure feeds it into the mixing tank 1. Finally, under the action of the diversion funnel 29, it enters the U-shaped groove 6. At this time, the drive structure is activated, which drives the rotating frame 2 to rotate. This causes the connecting rod 3, which is fixedly connected to the lower part of the rotating frame 2, to rotate inside the U-shaped groove 6. This causes the agitator 4, which is fixedly connected to the lower surface of the connecting rod 3, to stir the polypropylene mixture in the U-shaped groove 6. The polypropylene mixture moves along the upper surface of the agitator 4 and finally falls back into the U-shaped groove 6 from the highest point of the agitator 4. When the feeding structure feeds the U-shaped groove 6, the U-shaped groove 6 is filled with polypropylene mixture. The polypropylene mixture can fall from the gap between the U-shaped groove 6 and the mixing tank 1 to the lower inner side of the mixing tank 1. While the agitator 4 is stirring the polypropylene mixture inside the U-shaped groove 6, the transmission structure can periodically discharge the mixture.
[0026] The inner wall of the mixing tank 1 is fixedly connected to a fixing block 9. A sliding groove 10 is provided at the lower part of the fixing block 9. A pressure sensor 11 is fixedly connected at the upper part of the sliding groove 10. A slider 12 is movably connected inside the sliding groove 10. A fixing plate 13 is fixedly connected to the lower surface of the slider 12. A spring 14 is fixedly connected between the upper surface of the fixing plate 13 and the lower surface of the fixing block 9.
[0027] As the polypropylene mixture slowly accumulates on the inner side of the lower part of the mixing tank 1, it reaches a certain height and exerts an upward pushing force on the fixed plate 13, causing the slider 12 to slide inside the chute 10. Eventually, the slider 12 will exert a certain squeezing force on the pressure sensor 11. When the polypropylene mixture on the inner side of the lower part of the mixing tank 1 is released from the control discharge port 24, the slider 12 will reset due to the elastic potential energy of the spring 14 and the gravity of the slider 12. The protective shell 15 prevents the polypropylene mixture from affecting the spring 14.
[0028] The spring 14 is sleeved on the outside of the fixing plate 13, and the lower surface of the fixing block 9 is fixedly connected to the protective shell 15, with the spring 14 located inside the protective shell 15.
[0029] With the protective shell 15 protecting the slider 12, when the fixed plate 13 rises, the upper surface of the fixed plate 13 just fits against the lower surface of the protective shell 15, and the slider 12 is prevented from deforming due to the long-term operation of the spring 14 to a certain extent.
[0030] The drive structure includes a bracket 16 fixedly connected to the upper surface of the mixing tank 1. A first motor 17 is fixedly installed on the upper surface of the bracket 16. The output shaft of the first motor 17 is fixedly connected to a coupling 18. The interior of the coupling 18 is fixedly connected to the rotating frame 2.
[0031] The first motor 17 provides support force to the coupling 18 and provides space for the coupling 18 to be installed. The rotation of the output shaft of the first motor 17 drives the rotation of the rotating frame 2. The coupling 18 is used to connect the output shaft of the first motor 17 and the rotating frame 2.
[0032] The transmission structure includes a second motor 19 fixedly connected to the upper surface of the mixing tank 1. An incomplete gear 20 is fixedly connected to the output shaft of the second motor 19. A rack 21 is fixedly connected to the upper surface of the connecting strip 8. The incomplete gear 20 and the rack 21 mesh with each other. The connecting strip 8 is movably connected to the upper part of the mixing tank 1. A dustproof shell 22 is fixedly connected to the upper part of the mixing tank 1. The output shaft of the second motor 19 is rotatably connected inside the dustproof shell 22. The incomplete gear 20 is located inside the dustproof shell 22.
[0033] The output shaft of the second motor 19 rotates, thereby driving the incomplete gear 20 to rotate. Since the incomplete gear 20 meshes with the rack 21, the rack 21 drives the connecting strip 8 to move up and down, thereby realizing the cooperation between the opening at the bottom of the loop groove 6 and the circular baffle 7, thus realizing the discharge and temporary storage of polypropylene mixed raw materials.
[0034] The mixing tank 1 is fixedly connected to the lower part of the feeding funnel 23, the left side surface of the mixing tank 1 is provided with a control discharge port 24, and the surface of the mixing tank 1 is fixedly connected with a fixing frame 25. The feeding funnel 23 and the fixing frame 25 are fixedly connected.
[0035] The polypropylene mixed raw materials are poured into the feeding funnel 23, and the position of the mixing tank 1 is fixed by the fixing frame 25. The discharge port 24 can be controlled by an external controller to discharge the material.
[0036] The feeding structure includes a third motor 26 fixedly connected to the lower surface of the feeding hopper 23. The output shaft of the third motor 26 passes through the feeding hopper 23. The output shaft of the third motor 26 is fixedly connected to an auger 27. A limiting cylinder 28 is fixedly connected to the lower inner side of the mixing tank 1. The auger 27 is located inside the limiting cylinder 28. A diversion hopper 29 is fixedly connected to the upper part of the limiting cylinder 28.
[0037] When the polypropylene mixed raw material is poured into the feeding funnel 23, the operation of the third motor 26 drives the auger 27 to rotate. Under the cooperation of the auger 27 and the limiting cylinder 28, the polypropylene mixed raw material rises along the inside of the limiting cylinder 28 and enters the mixing tank 1. Through the design of the diversion funnel 29, the polypropylene mixed raw material can be guided to the inside of the loop groove 6.
[0038] Working principle and usage process of this utility model:
[0039] When the worker pours the polypropylene mixture into the feeding funnel 23, the feeding structure feeds it into the mixing tank 1. Finally, under the action of the diversion funnel 29, it enters the U-shaped groove 6. At this time, the drive structure is activated, which drives the rotating frame 2 to rotate. This causes the connecting rod 3, which is fixedly connected to the lower part of the rotating frame 2, to rotate inside the U-shaped groove 6. This causes the agitator 4, which is fixedly connected to the lower surface of the connecting rod 3, to stir the polypropylene mixture in the U-shaped groove 6. The polypropylene mixture moves along the upper surface of the agitator 4 and finally falls back into the U-shaped groove 6 from the highest point of the agitator 4. When the feeding structure feeds the U-shaped groove 6, the U-shaped groove 6 is filled with polypropylene mixture. The polypropylene mixture can fall from the gap between the U-shaped groove 6 and the mixing tank 1 to the lower inner side of the mixing tank 1. While the agitator 4 is stirring the polypropylene mixture inside the U-shaped groove 6, the transmission structure can periodically discharge the mixture.
[0040] As the polypropylene mixture slowly accumulates on the inner side of the lower part of the mixing tank 1, it reaches a certain height and exerts an upward pushing force on the fixed plate 13, causing the slider 12 to slide inside the chute 10. Eventually, the slider 12 will exert a certain squeezing force on the pressure sensor 11. When the polypropylene mixture on the inner side of the lower part of the mixing tank 1 is released from the control discharge port 24, the slider 12 will reset due to the elastic potential energy of the spring 14 and the gravity of the slider 12. The protective shell 15 prevents the polypropylene mixture from affecting the spring 14.
[0041] With the protective shell 15 protecting the slider 12, when the fixed plate 13 rises, the upper surface of the fixed plate 13 just fits against the lower surface of the protective shell 15, and the slider 12 is prevented from deforming due to the long-term operation of the spring 14 to a certain extent.
[0042] The first motor 17 provides support force to the coupling 18 and provides space for the coupling 18 to be installed. The rotation of the output shaft of the first motor 17 drives the rotation of the rotating frame 2. The coupling 18 is used to connect the output shaft of the first motor 17 and the rotating frame 2.
[0043] The output shaft of the second motor 19 rotates, thereby driving the incomplete gear 20 to rotate. Since the incomplete gear 20 meshes with the rack 21, the rack 21 drives the connecting strip 8 to move up and down, thereby realizing the cooperation between the opening at the bottom of the loop groove 6 and the circular baffle 7, thus realizing the discharge and temporary storage of polypropylene mixed raw materials.
[0044] The polypropylene mixed raw materials are poured into the feeding funnel 23, and the position of the mixing tank 1 is fixed by the fixing frame 25. The discharge port 24 can be controlled by an external controller to discharge the material.
[0045] When the polypropylene mixed raw material is poured into the feeding funnel 23, the operation of the third motor 26 drives the auger 27 to rotate. Under the cooperation of the auger 27 and the limiting cylinder 28, the polypropylene mixed raw material rises along the inside of the limiting cylinder 28 and enters the mixing tank 1. Through the design of the diversion funnel 29, the polypropylene mixed raw material can be guided to the inside of the loop groove 6.
[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A mixing and stirring apparatus for the production of polypropylene granules, comprising a mixing tank (1), characterized in that: A driving structure is fixedly connected to the top of the mixing tank (1), a rotating frame (2) is fixedly connected to the lower surface of the driving structure, a connecting rod (3) is fixedly connected to the lower surface of the rotating frame (2), a lever (4) is fixedly connected to the lower curved surface of the connecting rod (3), a feeding structure is provided inside the mixing tank (1), a support frame (5) is fixedly connected to the surface of the feeding structure, a loop groove (6) is fixedly connected to the upper surface of the support frame (5), a circular baffle (7) is movably connected to the lower surface of the loop groove (6), a connecting strip (8) is fixedly connected to the lower surface of the circular baffle (7), a movable groove (30) is opened on one side of the loop groove (6), the connecting strip (8) is movably connected inside the movable groove (30), and a transmission structure is fixedly connected to the upper part of the connecting strip (8).
2. The mixing and stirring device for polypropylene granule production according to claim 1, characterized in that: A fixing block (9) is fixedly connected to the inner wall of the mixing tank (1). A sliding groove (10) is provided at the lower part of the fixing block (9). A pressure sensor (11) is fixedly connected to the upper part of the sliding groove (10). A slider (12) is movably connected inside the sliding groove (10). A fixing plate (13) is fixedly connected to the lower surface of the slider (12). A spring (14) is fixedly connected between the upper surface of the fixing plate (13) and the lower surface of the fixing block (9).
3. The mixing and stirring device for polypropylene granule production according to claim 2, characterized in that: The spring (14) is sleeved on the outside of the fixing plate (13), and the lower surface of the fixing block (9) is fixedly connected to the protective shell (15), with the spring (14) located inside the protective shell (15).
4. The mixing and stirring device for polypropylene granule production according to claim 1, characterized in that: The drive structure includes a bracket (16) fixedly connected to the upper surface of the mixing tank (1). A first motor (17) is fixedly installed on the upper surface of the bracket (16). The output shaft of the first motor (17) is fixedly connected to a coupling (18). The interior of the coupling (18) is fixedly connected to the rotating frame (2).
5. The mixing and stirring device for polypropylene granule production according to claim 1, characterized in that: The transmission structure includes a second motor (19) fixedly connected to the upper surface of the mixing tank (1), an incomplete gear (20) fixedly connected to the output shaft of the second motor (19), a rack (21) fixedly connected to the upper surface of the connecting strip (8), the incomplete gear (20) and the rack (21) meshing with each other, the connecting strip (8) being movably connected to the upper part of the mixing tank (1), a dustproof shell (22) fixedly connected to the upper part of the mixing tank (1), the output shaft of the second motor (19) being rotatably connected inside the dustproof shell (22), and the incomplete gear (20) being located inside the dustproof shell (22).
6. The mixing and stirring apparatus for polypropylene granule production according to claim 1, characterized in that: The lower part of the mixing tank (1) is fixedly connected to a feeding funnel (23), and a control discharge port (24) is opened on the left side surface of the mixing tank (1). A fixing frame (25) is fixedly connected to the surface of the mixing tank (1), and the feeding funnel (23) and the fixing frame (25) are fixedly connected.
7. The mixing and stirring apparatus for polypropylene granule production according to claim 1, characterized in that: The feeding structure includes a third motor (26) fixedly connected to the lower surface of the feeding hopper (23). The output shaft of the third motor (26) passes through the feeding hopper (23). The output shaft of the third motor (26) is fixedly connected to an auger (27). A limiting cylinder (28) is fixedly connected to the lower inner side of the mixing tank (1). The auger (27) is located inside the limiting cylinder (28). A diversion funnel (29) is fixedly connected to the upper part of the limiting cylinder (28).