PVC plastic particle mixing stirrer

Abstract

The utility model relates to PVC product field, concretely is a kind of PVC plastic particle mixing stirrer;It includes mixing box, the feed pipe being set in the top of mixing box, multiple stirring mechanism and pivot three;Multiple stirring mechanism is set in the inside of mixing box;The outside of pivot three is provided with main stirring paddle.The utility model is set up through multiple stirring mechanism, motor drives pivot two and pivot three coaxial reverse rotation, pivot three drives main stirring paddle rotation, to " pump " the material of bottom to top, form violent up-down circulation, pivot two drives vice stirring paddle reverse rotation, to cooperate with material scraping rod and guide plate and scrape the adhering material on the inner wall of mixing box and guide it to move to main stirring paddle place continue to carry out stirring, so it can form three-dimensional shear field, significantly improve the collision frequency and energy transmission efficiency between particles, and cooperate with the cooling liquid flowing in circulating pipe, so that material carries out uniform cooling, strengthen the stirring effect of plastic particle.

Description

Technical Field

[0001] This utility model relates to the field of PVC products, and in particular to a PVC plastic granule mixing mixer. Background Technology

[0002] PVC granule mixers are key upstream equipment in the PVC product manufacturing process. Their core task is to fully and uniformly mix PVC resin powder with various additives to form a homogeneous mixture, laying the foundation for subsequent plasticizing, granulation, or direct extrusion molding.

[0003] Chinese Patent No. CN211164761U discloses a PVC product mixing device, including a main body, an extruder mounted on a support frame, an LED display mounted on the main body, a speed regulator mounted on the main body, a sliding groove mounted on a support rod, a hydraulic pump mounted on the sliding groove, a motor mounted on a sliding block, a rotating shaft mounted on the motor, a stirrer mounted on the rotating shaft, a stirring tooth mounted on the stirrer, a sealing sleeve mounted on the main body, a feed inlet mounted on the main body, a water inlet mounted on the main body, a water replenisher mounted on the water inlet, a temperature sensor and a humidity sensor mounted inside the main body, and a heater mounted inside the main body. The beneficial effects of this invention are: This invention is a PVC product mixing device that adjusts the heater, water replenisher, and speed based on internal temperature, humidity, and dust signals, ensuring thorough mixing of the PVC and improving the performance of the PVC products.

[0004] However, the above-mentioned publicly available solutions have the following shortcomings: the existing PVC plastic granule mixing mixer has a relatively simple mixing structure, which does not have a good mixing effect on the plastic granules and cannot mix the plastic granules thoroughly and evenly. Utility Model Content

[0005] The purpose of this invention is to address the problem in the prior art that plastic granules cannot be fully and evenly mixed, and to propose a PVC plastic granule mixing mixer.

[0006] The technical solution of this utility model is as follows: a PVC plastic granule mixing mixer, comprising a mixing tank and a feed pipe disposed at the top of the mixing tank; and further comprising;

[0007] Multiple mixing mechanisms are located inside the mixing tank and are used to mix plastic granules using multiple mixing methods.

[0008] And a third rotating shaft, on the outside of which is a main stirring paddle, which is mounted on a multi-stage stirring mechanism. A second rotating shaft is rotatably mounted on the inside of the third rotating shaft. A rotating frame is mounted on the top of the second rotating shaft. A scraper is mounted on the end of the rotating frame away from the second rotating shaft. An auxiliary stirring paddle is mounted on the scraper. The main stirring paddle has spiral blades to generate a strong axial flow. The auxiliary stirring paddle has plow-shaped blades to scrape off the material adhering to the inner wall of the mixing tank and guide it to the main stirring paddle.

[0009] Preferably, a guide platform is provided on the inner side of the mixing tank, and the guide platform is cone-shaped. A slide rail is provided on the outer side of the mixing tank, and a sliding door is slidably mounted on the slide rail. The sliding door is equipped with a pull ring, and there are two sliding doors symmetrically arranged about the slide rail.

[0010] Preferably, a cooler is provided inside the mixing tank and at the bottom. A circulation pipe is provided on the cooler. The circulation pipe is located in the mixing working area of ​​the mixing tank. A circulation pump is integrated inside the cooler. The circulation pipe is filled with coolant.

[0011] Preferably, the multi-stage stirring mechanism includes a power component and a stirring component; the power component is mounted on the mixing tank and is used to provide power to the stirring component; the stirring component is mounted at the output end of the power component and is used to drive the main stirring blade and the auxiliary stirring blade to rotate coaxially in opposite directions.

[0012] Preferably, the power assembly includes a connecting frame, a motor, a rotating shaft, and a bevel gear; the connecting frame is located on the outside of the mixing tank, the motor is located on the inside of the connecting frame, the rotating shaft is located at the output end of the motor, and the bevel gear is located at the end of the rotating shaft away from the motor.

[0013] Preferably, the stirring assembly includes a second bevel gear, a third bevel gear, and a protective box; the third bevel gear is located at the bottom of the second rotating shaft and meshes with the upper part of the first bevel gear, the second bevel gear is located at the bottom of the third rotating shaft and meshes with the lower part of the first bevel gear, the protective box is located inside the mixing tank and at the bottom, and a guide plate is provided at the bottom of the scraper rod.

[0014] Preferably, there are three main stirring paddles arranged at equal intervals on the rotating shaft three, and two auxiliary stirring paddles are set on the scraper bar. The lower layer of main stirring paddles is responsible for circulating and pushing the bottom material, while the upper two layers of main stirring paddles are responsible for breaking up and cutting the middle and upper layer of material and pulling it into the main circulation flow. The upper and lower layers of main stirring paddles are distributed alternately.

[0015] Compared with the prior art, this utility model has the following beneficial technical effects: Through the setting of multiple stirring mechanisms, the motor drives the second and third rotating shafts to rotate in opposite directions on the same axis. The third rotating shaft drives the main stirring paddle to rotate, thereby "pumping" the material at the bottom to the top, forming a violent up-and-down circulation. The second rotating shaft drives the auxiliary stirring paddle to rotate in the opposite direction, thereby working with the scraper and guide plate to scrape off the material adhering to the inner wall of the mixing tank and guide it to the main stirring paddle to continue stirring. This can form a three-dimensional shear field, significantly improving the collision frequency and energy transfer efficiency between particles. In addition, a "push-down" circulation mode is formed in the stirrer, avoiding local accumulation caused by unidirectional flow, accelerating heat conduction and component homogenization. It can also work with the coolant flowing in the circulation pipe to make the material cool down evenly and enhance the stirring effect of plastic granules. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0017] Figure 2 for Figure 1 Internal structure diagram;

[0018] Figure 3 This is a schematic diagram of the structure of the multi-stage stirring mechanism;

[0019] Figure 4 This is a partial structural diagram of the multi-stage stirring mechanism;

[0020] Attached reference numerals: 1. Mixing tank; 2. Feed pipe; 3. Sliding door; 4. Pull ring; 5. Slide rail; 601. Connecting frame; 602. Motor; 603. Rotating shaft one; 604. Protective box; 605. Bevel gear one; 606. Bevel gear two; 607. Bevel gear three; 608. Rotating shaft two; 609. Rotating shaft three; 610. Main mixing paddle; 611. Rotating frame; 612. Auxiliary mixing paddle; 613. Guide plate; 614. Scraper bar; 701. Refrigerator; 702. Circulation pipe; 8. Guide platform. Detailed Implementation

[0021] Example 1, as Figures 1-3 As shown, the present invention proposes a PVC plastic granule mixing mixer, which includes a mixing tank 1, a feed pipe 2 disposed on the top of the mixing tank 1, a multi-stage mixing mechanism, and a rotating shaft 609.

[0022] A multi-stage mixing mechanism is located inside the mixing tank 1 and is used to mix the plastic granules using multiple mixing methods.

[0023] A main stirring paddle 610 is provided on the outer side of the rotating shaft 3 609. The rotating shaft 3 609 is mounted on a multi-stage stirring mechanism. A rotating shaft 2 608 is rotatably mounted on the inner side of the rotating shaft 3 609. A rotating frame 611 is provided on the top of the rotating shaft 2 608. A scraper rod 614 is provided at the end of the rotating frame 611 away from the rotating shaft 2 608. An auxiliary stirring paddle 612 is provided on the scraper rod 614. The main stirring paddle 610 has spiral blades and is used to generate a strong axial flow to "pump" the material at the bottom to the top, forming a violent up-and-down circulation. The auxiliary stirring paddle 612 has plow-shaped blades and is used to scrape off the material adhering to the inner wall of the mixing tank 1 and guide it to the main stirring paddle 610.

[0024] The mixing tank 1 is equipped with a guide platform 8 on its inner side. The guide platform 8 is cone-shaped and its bottom is flush with the bottom of the sliding door 3. Therefore, the mixed plastic granules can roll directly through the guide platform 8 and then roll out of the sliding door 3 for discharge. The mixing tank 1 is equipped with a slide rail 5 on its outer side. The sliding door 3 is slidably mounted on the slide rail 5 and is equipped with a pull ring 4. There are two sliding doors 3 symmetrically arranged about the slide rail 5. Magnets are provided at the facing positions of the two sliding doors 3 so that they can attract each other and close together. When the sliding door 3 moves to the closed position, it can be engaged with the mixing tank 1.

[0025] A cooler 701 is installed inside the mixing tank 1 and at the bottom. A circulation pipe 702 is installed on the cooler 701. The circulation pipe 702 is located in the mixing working area of ​​the mixing tank 1. A circulation pump is integrated inside the cooler 701. The circulation pipe 702 is filled with coolant. The coolant circulates under the action of the circulation pump. When it flows into the cooler 701, it is cooled down. When it flows into the working area, it cools down the plastic particles.

[0026] Three main agitators 610 are arranged at equal intervals on the rotating shaft 609, and two auxiliary agitators 612 are set on the scraper 614. The lower layer of main agitators 610 is responsible for circulating and pushing the bottom material, while the upper two layers of main agitators 610 are responsible for breaking up and cutting the material in the middle and upper layers and pulling it into the main circulation flow. The upper and lower layers of main agitators 610 are staggered to avoid flow interference and form more complex turbulence.

[0027] Example 2, as Figures 3-4 As shown, this utility model proposes a PVC plastic granule mixing mixer. Compared with Embodiment 1, this embodiment details the structure of the multiple mixing mechanisms.

[0028] The multi-stage stirring mechanism includes a power component and a stirring component. The power component is mounted on the mixing tank 1 and provides power to the stirring component. The stirring component is located at the output end of the power component and drives the main stirring paddle 610 and the auxiliary stirring paddle 612 to rotate coaxially and in opposite directions. The power component includes a connecting frame 601, a motor 602, a rotating shaft 603, and a bevel gear 605. The connecting frame 601 is located on the outside of the mixing tank 1, the motor 602 is located on the inside of the connecting frame 601, the rotating shaft 603 is located at the output end of the motor 602, and the bevel gear 605 is located at the end of the rotating shaft 603 away from the motor 602. When the motor 602 is started, the motor 602 drives the rotating shaft 603 to rotate, and the rotating shaft 603 drives the bevel gear 605 to rotate. The mixing assembly includes a second bevel gear 606, a third bevel gear 607, and a protective box 604. The third bevel gear 607 is located at the bottom of the second shaft 608 and meshes with the upper part of the first bevel gear 605. The second bevel gear 606 is located at the bottom of the third shaft 609 and meshes with the lower part of the first bevel gear 605. The protective box 604 is located inside the mixing tank 1 at the bottom. The top of the protective box 604 is connected to the bottom of the guide platform 8, thus forming a sealed space with the guide platform 8, the protective box 604, and the mixing tank 1, protecting the first bevel gear 605, the second bevel gear 606, and the third bevel gear 607. A guide plate 6 is provided at the bottom of the scraper rod 614. 13. The bottom of the guide plate 613 is in contact with the outer side of the guide platform 8, so the guide plate 613 can drive the plastic particles on the guide platform 8 to move. Since the guide plate 613 is inclined, the plastic particles can be guided along the inclined surface to the main stirring paddle 610 when moving. When the first bevel gear 605 rotates, it simultaneously drives the second bevel gear 606 and the third bevel gear 607 to rotate in the opposite direction, thereby driving the third rotating shaft 609 and the second rotating shaft 608 to rotate in the opposite direction. The third rotating shaft 609 drives the main stirring paddle 610 to rotate, and the second rotating shaft 608 drives the auxiliary stirring paddle 612 to rotate in the opposite direction through the rotating frame 611 and the scraper 614, thereby performing multi-mode mixing.

[0029] In summary, when using this invention, plastic granules are fed into the mixing tank 1 through the feed pipe 2. Then, the motor 602 is started, which drives the rotating shaft 603 to rotate. The rotating shaft 603 drives the bevel gear 605 to rotate. When the bevel gear 605 rotates, it simultaneously drives the bevel gears 606 and 607 to rotate in the opposite direction, thereby driving the rotating shafts 609 and 608 to rotate in the opposite direction. The rotating shaft 609 drives the main mixing paddle 610 to rotate, and the rotating shaft 608 drives the auxiliary mixing paddle 612 to rotate in the opposite direction through the rotating frame 611 and the scraper 614, thus performing multiple processes. The mixing process involves the guide plate 613 moving synchronously under the drive of the scraper 614, allowing the plastic granules to be guided along the inclined surface of the guide plate 613 to the main mixing paddle 610. The scraper 614 and the auxiliary mixing paddle 612 scrape off the material adhering to the inner wall of the mixing tank 1, and the auxiliary mixing paddle 612 guides this material to the main mixing paddle 610. After mixing is completed, the motor 602 is turned off and the two sliding doors 3 are opened through the pull ring 4, thereby removing the processed plastic granules. The plastic granules are more easily collected by rolling out of the mixing tank 1 through the guide table 8.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A PVC plastic granule mixing agitator, comprising a mixing tank (1) and a feed pipe (2) disposed at the top of the mixing tank (1); characterized in that, Also includes; Multiple mixing mechanism, which is located inside the mixing tank (1), is used to mix plastic granules using multiple mixing methods; And a rotating shaft three (609), a main stirring paddle (610) is provided on the outside of the rotating shaft three (609), the rotating shaft three (609) is provided on the multi-stirring mechanism, a rotating shaft two (608) is rotatably provided on the inside of the rotating shaft three (609), a rotating frame (611) is provided on the top of the rotating shaft two (608), a scraper rod (614) is provided at the end of the rotating frame (611) away from the rotating shaft two (608), a secondary stirring paddle (612) is provided on the scraper rod (614), the main stirring paddle (610) is a spiral blade used to generate a strong axial flow, and the secondary stirring paddle (612) is a plow-shaped blade used to scrape off the adhering material on the inner wall of the mixing tank (1) and guide it to move to the main stirring paddle (610).

2. The PVC plastic granule mixing agitator according to claim 1, characterized in that, A guide platform (8) is provided on the inner side of the mixing tank (1). The guide platform (8) is cone-shaped. A slide rail (5) is provided on the outer side of the mixing tank (1). A sliding door (3) is slidably provided on the slide rail (5). A pull ring (4) is provided on the sliding door (3). There are two sliding doors (3) symmetrically arranged about the slide rail (5).

3. The PVC plastic granule mixing agitator according to claim 1, characterized in that, A cooler (701) is provided inside the mixing tank (1) and at the bottom. A circulation pipe (702) is provided on the cooler (701). The circulation pipe (702) is located in the mixing working area of ​​the mixing tank (1). A circulation pump is integrated inside the cooler (701). The circulation pipe (702) is filled with coolant.

4. The PVC plastic granule mixing agitator according to claim 1, characterized in that, The multi-stage mixing mechanism includes a power unit and a mixing unit; The power unit is mounted on the mixing tank (1) and is used to provide power to the mixing unit; The stirring assembly is located at the output end of the power assembly and is used to drive the main stirring paddle (610) and the auxiliary stirring paddle (612) to rotate in opposite directions on the same axis.

5. The PVC plastic granule mixing agitator according to claim 4, characterized in that, The power assembly includes a connecting frame (601), a motor (602), a rotating shaft (603), and a bevel gear (605); The connecting frame (601) is located on the outside of the mixing tank (1), the motor (602) is located on the inside of the connecting frame (601), the first rotating shaft (603) is located at the output end of the motor (602), and the first bevel gear (605) is located at the end of the first rotating shaft (603) away from the motor (602).

6. The PVC plastic granule mixing agitator according to claim 5, characterized in that, The stirring assembly includes bevel gear two (606), bevel gear three (607) and a protective box (604); The third bevel gear (607) is located at the bottom of the second shaft (608) and meshes with the top of the first bevel gear (605). The second bevel gear (606) is located at the bottom of the third shaft (609) and meshes with the bottom of the first bevel gear (605). The protective box (604) is located inside the mixing tank (1) and at the bottom. The bottom of the scraper rod (614) is provided with a guide plate (613).

7. The PVC plastic granule mixing agitator according to claim 1, characterized in that, There are three main stirring paddles (610) arranged at equal intervals on the rotating shaft three (609), and two auxiliary stirring paddles (612) are set on the scraper bar (614). The lower layer of main stirring paddles (610) is responsible for the circulation and propulsion of the bottom material, and the upper two layers of main stirring paddles (610) are responsible for breaking up and cutting the material in the middle and upper layers and pulling it into the main circulation flow. The upper layer of main stirring paddles (610) and the lower layer of main stirring paddles (610) are staggered.

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