An automatic stirring device for adjusting polymer viscosity

Abstract

The present invention relates to the field of polymer production technology, specifically to an automatic stirring device for adjusting polymer viscosity, comprising a support seat, a stirring barrel fixedly installed in the support seat, a central shaft cylinder rotatably installed at the center of the stirring barrel through a support frame, and a main body mechanism is arranged on the stirring barrel. The stirring adjustment of polymer viscosity is completed by adopting an integrated operation model of stirring, vibration and pressure relief. Firstly, a combination of self-rotation and conical stirring is adopted to ensure all-round mixing and uniform heat distribution. At the same time, the limit pressure can ensure the stability of the stirring process, and the external knocking and internal spring-driven adaptation rod provide multi-level vibration defoaming effect. In addition, the exhaust valve maintains a stable air pressure in the defoaming stage, and accelerates the material output by using the air pressure difference and vibration in the discharge stage, thereby significantly improving the stirring uniformity and defoaming efficiency, optimizing the heat distribution and material utilization, and improving the controllability and efficiency of the whole process.

Description

Technical Field

[0001] The invention relates to the technical field of polymer production, in particular to an automatic stirring device for adjusting polymer viscosity. Background Art

[0002] Polymers are macromolecules composed of many repeating monomer units connected by chemical bonds. Due to their diverse properties and wide applications, they have become an important field in modern materials science. The adjustment of polymer viscosity is an important process parameter, which directly affects the processing, product performance and application range. Therefore, when producing polymer products, it is necessary to stir and adjust the viscosity of the polymer before production to ensure that the polymer has a suitable viscosity and is evenly filled into the mold, thereby improving the polymer molding quality, reducing product surface defects, and ensuring the strength and toughness of the final product.

[0003] At present, there are the following disadvantages when stirring to adjust the viscosity of polymers: 1. When stirring the polymer, the polymer viscosity is usually adjusted only by adjusting the rotation speed of the stirring rod, and too high a stirring speed will lead to mechanical degradation of the polymer chain, thereby reducing the molecular weight and changing the material properties, and it is impossible to achieve uniform material mixing in a large volume or high viscosity system by only adjusting the rotation speed. At the same time, high-speed stirring is prone to introduce bubbles, affecting the quality and performance of the final product; 2. When stirring the polymer, the position of the stirring rod for stirring the polymer remains unchanged, resulting in that the material in certain areas cannot be fully stirred, making the entire mixture uneven, and the area where the stirring rod is fixed may be over-stirred, thereby causing degradation or performance changes of the polymer, and the heat generated during the stirring process will be concentrated near the fixed position, resulting in uneven temperature distribution, thereby affecting the processing performance of the polymer. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an automatic stirring device for adjusting polymer viscosity, which is achieved by the following specific technical means: an automatic stirring device for adjusting polymer viscosity, comprising a support seat, a stirring barrel is fixedly installed in the support seat, a central shaft cylinder is rotatably installed at the center of the stirring barrel through a support frame, a main body mechanism is arranged on the stirring barrel, and a stirring mechanism is arranged on the main body mechanism for cooperating with the stirring barrel to implement different stirring methods for the polymer.

[0005] The main body mechanism comprises a driving part arranged on the stirring barrel and used for cooperating with the stirring mechanism to stir the polymer by circumferential rotation. The stirring barrel is also provided with a pressure relief part for balancing the internal air pressure.

[0006] The stirring mechanism includes a rotating part arranged on the central shaft cylinder, an executing part for stirring the polymer is arranged on the central shaft cylinder, an adjusting part for cooperating with the executing part to adjust the stirring position of the executing part and to stir the polymer in a conical radial direction is arranged on the rotating part, a matching part is arranged on the rotating part, and a conversion part is also arranged on the rotating part for performing knocking vibration on the matching part and switching between two sets of execution modes in which the matching part provides power for the adjusting part.

[0007] A limiting mechanism cooperating with the stirring mechanism is arranged on the central shaft cylinder; the limiting mechanism includes a limiting part arranged on the central shaft cylinder and used to limit and fix the execution part during the stirring process, the limiting part cooperates with the matching part and is used to implement knocking and vibration to the polymer after stirring to remove bubbles, and an oscillation part is arranged in the execution part to remove bubbles from the polymer through adaptive oscillation to assist the matching part.

[0008] As a preferred technical solution of the present invention, the driving part includes a supporting triangle plate and a first motor. The supporting triangle plate is fixedly installed on the supporting frame, and the first motor is fixedly installed on the supporting triangle plate. The output end of the first motor is connected to the central shaft cylinder through a first gear set.

[0009] As a preferred technical solution of the present invention, the pressure relief part includes a pressure relief circular plate, a cylinder and an exhaust valve. The pressure relief circular plate is slidably installed in the support seat, the central shaft tube passes through the lower end surface of the pressure relief circular plate and is movably connected with it, and a cylinder with a telescopic end fixedly connected to the upper end surface of the pressure relief circular plate is fixedly installed on the support seat, and a number of exhaust valves for opening and closing exhaust are evenly distributed in an array on the upper end surface of the pressure relief circular plate.

[0010] As a preferred technical solution of the present invention, the rotating part includes a rotating shaft, a second motor and a first support plate. A rotating shaft with a cavity inside is installed at the center of the central shaft tube through a bearing. The second motor is fixedly installed on the upper end surface of the central shaft tube through a motor group. The output end of the second motor is connected to the rotating shaft through a second gear group. A first support plate with an L-shaped cross section is fixedly installed on the inner ring wall of the central shaft tube, and the rotating shaft passes through the first support plate and is movably connected to the first support plate.

[0011] As a preferred technical solution of the present invention, the execution part includes a connecting ball, a connecting cylinder and a stirring rod. A number of connecting balls located above the first support plate are installed on the outer ring wall of the central shaft cylinder in a circular array and are rotatably penetrated therethrough. A sealing rubber ring that fits with the outer ring wall of the connecting ball is provided on the outer ring wall of the central shaft cylinder. A connecting cylinder that passes through the center of the ball is fixedly installed on the connecting ball. A stirring rod is fixedly installed on the end of the connecting cylinder away from the central shaft cylinder, and a cavity is commonly provided inside the connecting cylinder and the corresponding stirring rod.

[0012] As a preferred technical solution of the present invention, the adjustment part includes a first turntable, a second turntable and a first bevel gear. A side wall of the vertical section of the first support plate close to the central axis tube is rotatably installed with a first turntable corresponding to a connecting ball one by one through a set shaft rod. A side wall of the first turntable close to the corresponding connecting tube is installed with an eccentric second turntable through a bearing. The second turntable is hinged to the corresponding connecting tube, and the side walls of the first turntables close to each other are fixedly installed with the first bevel gear.

[0013] As a preferred technical solution of the present invention, the mating part includes a second support plate, a second bevel gear, a third turntable, a rubber rod and a connecting hole. A second support plate located above the first support plate is fixedly installed on the inner ring wall of the central shaft tube. A second bevel gear is installed on the lower end surface of the second support plate through a bearing. The second bevel gear is simultaneously meshed and connected with a plurality of first bevel gears. A third turntable is installed on the upper end surface of the second support plate through a bearing. The lower end of the rotating shaft movably passes through the second support plate, the second bevel gear and the third turntable. A plurality of rubber rods are fixedly installed on the upper end surface of the third turntable in a circular array. A connecting hole corresponding to a one-to-one connecting ball is opened through the upper end surface of the second support plate.

[0014] As a preferred technical solution of the present invention, the conversion part includes a first electric push rod, a first connecting rod, a cone-shaped protrusion, a socket and a spring plug rod. The first electric push rod is fixedly installed on the upper end surface of the rotating shaft, the telescopic end of the first electric push rod is fixedly installed with the first connecting rod located in the rotating shaft, and the lower end of the first connecting rod is fixedly installed with a cone-shaped protrusion. The inner ring wall of the rotating shaft is provided with two groups of upper and lower sockets located at the second bevel gear and the third turntable respectively in a circular array. The inner ring wall of the second bevel gear and the third turntable are provided with matching holes corresponding to the corresponding sockets one by one. A spring plug rod is arranged in the socket, and the spring plug rod is composed of a sliding rod slidably connected to the socket and a spring fixedly installed between the sliding rod and the socket.

[0015] As a preferred technical solution of the present invention, the limiting part includes a second electric push rod, a second connecting rod, a circular slide, a knocking rod, a shaped frame and a limiting pressure block. The second electric push rod is fixedly installed on the upper end surface of the central shaft tube, and the telescopic end of the second electric push rod is fixedly installed with the second connecting rod located in the central shaft tube. The lower end of the second connecting rod is fixedly installed with a circular slide located above the second support plate. The circular slide is slidably connected to the inner ring wall of the central shaft tube, and a knocking rod corresponding to the connecting hole is fixedly installed on the lower end surface of the circular slide. The lower end of the knocking rod is fixedly installed with a shaped frame, and the limiting pressure block is rotatably installed in the shaped frame through a torsion spring rod.

[0016] As a preferred technical solution of the present invention, the oscillation part includes an adaptation rod and a knocking block. The adaptation rod is arranged inside the stirring rod. A plurality of springs are fixedly installed between the adaptation rod and the inner ring wall of the stirring rod in a circular array. A plurality of knocking blocks are evenly distributed on the adaptation rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The automatic stirring device for adjusting polymer viscosity, through the coordinated use of the main body mechanism, stirring mechanism and limiting mechanism, adopts an integrated operation model of stirring, vibration and pressure relief to complete the stirring adjustment of polymer viscosity, thereby realizing an efficient and comprehensive polymer processing process. First, a combination of self-rotation and radial conical stirring is adopted to ensure all-round mixing and uniform heat distribution. At the same time, the limiting pressure can ensure the stability of the stirring process, and the external knocking and internal spring-driven adaptation rod provide a multi-level vibration defoaming effect. In addition, the exhaust valve maintains a stable air pressure in the defoaming stage, and uses the air pressure difference and vibration to accelerate the material output in the discharge stage, thereby significantly improving the stirring uniformity and defoaming efficiency, optimizing the heat distribution and material utilization, and improving the controllability and efficiency of the entire process.

[0018] 2. The automatic stirring device for adjusting polymer viscosity can use self-rotation to stir different positions of the polymer through the mutual cooperation of the main body mechanism and the stirring mechanism. At the same time, conical single stirring or stirring in combination with self-rotation can be used to promote the circulation of materials from the bottom to the top of the container, enhance the polymer mixing effect, and provide uniform shear force at different positions, reduce the dead corners of stirring to ensure that all materials can be fully mixed. At the same time, the heat generated during the stirring process can be evenly dispersed to avoid local overheating and protect the thermal stability of the polymer.

[0019] 3. The automatic stirring device for adjusting polymer viscosity cooperates with the stirring mechanism and the limiting mechanism. When stirring the polymer, the stirring rod is limited and fixed by pressing, so as to ensure the stability of the stirring rod when rotating at different positions during the stirring process. In addition, when debubbling the polymer, the vibration can be transmitted to the stirring rod by continuously knocking the rod with a rubber rod, so as to more effectively destroy the bubbles in the polymer through vibration.

[0020] 4. The automatic stirring device for adjusting polymer viscosity, through the set limit mechanism, will transmit the vibration to the stirring rod when debubbling the polymer. At this time, the internal adaptation rod will continuously knock the stirring rod from the inside according to the vibration frequency of the outer ring wall of the stirring rod under the action of the spring. In this way, the polymer is debubbled in a multi-level manner by combining external and internal vibrations, which can more effectively destroy and remove bubbles in the polymer in a shorter time.

[0021] 5. The automatic stirring device for polymer viscosity adjustment, through the main body mechanism, opens the exhaust valve to maintain the air pressure in the barrel stable when removing bubbles from the polymer, which can effectively discharge the gas generated in the polymer and accelerate the discharge of bubbles, while avoiding the formation of new bubbles caused by pressure changes. When discharging the polymer, the exhaust valve is closed, and the air pressure difference and vibration are used to assist in accelerating the discharge speed and reducing material retention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 2 It is a partial cross-sectional three-dimensional structural schematic diagram of the present invention.

[0024] Figure 3 It is a schematic diagram of a partially cutaway three-dimensional structure of the stirring mechanism of the present invention.

[0025] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0026] Figure 5 It is a partial three-dimensional structural schematic diagram of the matching part and the execution part of the present invention.

[0027] Figure 6 It is a schematic cross-sectional structural diagram of the stirring mechanism and the limiting mechanism of the present invention.

[0028] Figure 7 for Figure 6 Schematic diagram of the enlarged structure at point B in the middle.

[0029] In the figure: 1, support seat; 2, mixing barrel; 3, central shaft cylinder; 4, main body mechanism; 41, driving part; 411, supporting triangle plate; 412, first motor; 42, pressure relief part; 421, pressure relief circular plate; 422, cylinder; 423, exhaust valve; 5, mixing mechanism; 51, rotating part; 511, rotating shaft; 512, second motor; 513, first support plate; 52, execution part; 521, connecting ball; 522, connecting cylinder; 523, mixing rod; 53, adjustment part; 531, first rotating disk; 532, second rotating disk; 533, first bevel gear; 5 4. Matching part; 541. Second support plate; 542. Second bevel gear; 543. Third turntable; 544. Rubber rod; 545. Connecting hole; 55. Converting part; 551. First electric push rod; 552. First connecting rod; 553. Spindle-shaped protrusion; 554. Inserting hole; 555. Spring inserting rod; 6. Limiting mechanism; 61. Limiting part; 611. Second electric push rod; 612. Second connecting rod; 613. Round slide plate; 614. Knocking rod; 615. Moulded frame; 616. Limiting pressure block; 62. Oscillation part; 621. Adapting rod; 622. Knocking block. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1 An automatic stirring device for adjusting polymer viscosity comprises a support base 1, a stirring barrel 2 is fixedly installed in the support base 1, a central shaft cylinder 3 is rotatably installed at the center of the stirring barrel 2 through a support frame, a main body mechanism 4 is arranged on the stirring barrel 2, and a stirring mechanism 5 for cooperating with the main body mechanism 4 to implement different stirring methods for the polymer is arranged on the main body mechanism 4.

[0032] See also Figure 1 and Figure 2 The main mechanism 4 includes a driving part 41 disposed on the stirring barrel 2 and used to cooperate with the stirring mechanism 5 to stir the polymer by circumferential rotation. The stirring barrel 2 is also provided with a pressure relief part 42 for balancing the internal air pressure thereof.

[0033] See also Figure 1 , Figure 2 and Figure 3 The stirring mechanism 5 includes a rotating part 51 arranged on the central shaft cylinder 3, an executing part 52 for stirring the polymer is arranged on the central shaft cylinder 3, an adjusting part 53 for cooperating with the executing part 52 to adjust the stirring position and stir the polymer in a conical radial direction is arranged on the rotating part 51, a matching part 54 is arranged on the rotating part 51, and a conversion part 55 is also arranged on the rotating part 51 for performing knocking vibration on the matching part 54 and switching between two sets of execution modes in which the matching part 54 provides power for the adjusting part 53.

[0034] See also Figure 1 , Figure 2 and Figure 5 A limiting mechanism 6 cooperating with the stirring mechanism 5 is arranged on the central shaft cylinder 3; the limiting mechanism 6 includes a limiting portion 61 arranged on the central shaft cylinder 3 and used to limit and fix the execution part 52 during the stirring process, the limiting portion 61 cooperates with the matching portion 54 and is used to implement knocking and vibration to the polymer after stirring to remove bubbles, and an oscillation portion 62 for removing bubbles from the polymer through adaptive oscillation to assist the matching portion 54 is arranged in the execution part 52.

[0035] See also Figure 1 and Figure 2The driving part 41 includes a supporting triangle plate 411 and a first motor 412. The supporting triangle plate 411 is fixedly mounted on the supporting frame, and the first motor 412 is fixedly mounted on the supporting triangle plate 411. The output end of the first motor 412 is connected to the central shaft tube 3 through a first gear set.

[0036] See also Figure 2 , Figure 3 , Figure 5 and Figure 6 The rotating part 51 includes a rotating shaft 511, a second motor 512 and a first support plate 513. The rotating shaft 511 with a cavity inside is installed at the center of the central shaft tube 3 through a bearing. The second motor 512 is fixedly installed on the upper end surface of the central shaft tube 3 through a motor group. The output end of the second motor 512 is connected to the rotating shaft 511 through a second gear group. A first support plate 513 with an L-shaped cross section is fixedly installed on the inner ring wall of the central shaft tube 3. The rotating shaft 511 passes through the first support plate 513 and is movably connected with it.

[0037] See also Figure 2 , Figure 3 , Figure 5 and Figure 6 The actuator 52 includes a connecting ball 521, a connecting cylinder 522 and a stirring rod 523. A plurality of connecting balls 521 located above the first support plate 513 are rotatably installed on the outer ring wall of the central shaft cylinder 3 in a circular array. A sealing rubber ring that fits the outer ring wall of the connecting ball 521 is provided on the outer ring wall of the central shaft cylinder 3. A connecting cylinder 522 that passes through the center of the ball is fixedly installed on the connecting ball 521. A stirring rod 523 is fixedly installed on the end of the connecting cylinder 522 away from the central shaft cylinder 3, and a cavity is commonly provided inside the connecting cylinder 522 and the corresponding stirring rod 523.

[0038] See also Figure 3 , Figure 5 and Figure 6 The adjustment part 53 includes a first rotating disk 531, a second rotating disk 532 and a first bevel gear 533. A side wall of the vertical section of the first support plate 513 close to the central shaft tube 3 is rotatably installed with the first rotating disk 531 corresponding to the connecting ball 521 through a shaft rod. A side wall of the first rotating disk 531 close to the corresponding connecting tube 522 is installed with an eccentric second rotating disk 532 through a bearing. The second rotating disk 532 is hinged to the corresponding connecting tube 522. The side walls of the first rotating disk 531 close to each other are fixedly installed with the first bevel gear 533.

[0039] See also Figure 3 , Figure 5 , Figure 6 and Figure 7The mating portion 54 includes a second support plate 541, a second bevel gear 542, a third rotating disk 543, a rubber rod 544 and a connecting hole 545. The second support plate 541 located above the first support plate 513 is fixedly installed on the inner ring wall of the central shaft tube 3. The second bevel gear 542 is installed on the lower end surface of the second support plate 541 through a bearing. The second bevel gear 542 is meshed and connected with a plurality of first bevel gears 533 at the same time. The third rotating disk 543 is installed on the upper end surface of the second support plate 541 through a bearing. The lower end of the rotating shaft 511 movably passes through the second support plate 541, the second bevel gear 542 and the third rotating disk 543. A plurality of rubber rods 544 are fixedly installed on the upper end surface of the third rotating disk 543 in a circular array. The upper end surface of the second support plate 541 is penetrated by connecting holes 545 corresponding to the connecting balls 521.

[0040] See also Figure 2 , Figure 3 , Figure 6 and Figure 7 The conversion part 55 includes a first electric push rod 551, a first connecting rod 552, a cone-shaped protrusion 553, a socket 554 and a spring plug rod 555. The first electric push rod 551 is fixedly installed on the upper end surface of the rotating shaft 511. The telescopic end of the first electric push rod 551 is fixedly installed with the first connecting rod 552 located in the rotating shaft 511. The lower end of the first connecting rod 552 is fixedly installed with a cone-shaped protrusion 553. The inner ring wall of the rotating shaft 511 is provided with two groups of upper and lower sockets 554 located at the second bevel gear 542 and the third rotating disk 543 respectively in a circular array manner. The inner ring walls of the second bevel gear 542 and the third rotating disk 543 are both provided with matching holes corresponding to the corresponding sockets 554. A spring plug rod 555 is arranged in the socket 554. The spring plug rod 555 is composed of a sliding rod slidably connected to the socket 554 and a spring fixedly installed between the sliding rod and the socket 554.

[0041] During specific operation, when it is necessary to adjust the viscosity of the polymer and stir it, the cone-shaped protrusion 553 corresponds to the socket 554 below, and the cone-shaped protrusion 553 will squeeze the spring plug rod 555, and the corresponding spring plug rod 555 will pass through the socket 554 and be inserted into the matching hole of the second bevel gear 542, thereby locking the second bevel gear 542 and the rotating shaft 511, and the second motor 512 is not started. At this time, the stirring rod 523 is tilted downward away from the end of the central shaft cylinder 3, and the limiting portion 61 will squeeze and limit the connecting cylinder 522, so that the stirring rod 523 is fixed on the central shaft cylinder 3, and then the first motor 412 is started to rotate the central shaft cylinder 3 through the first gear group, and the central shaft cylinder 3 drives the stirring rod 523 to stir the polymer in the stirring barrel 2.

[0042] After stirring for a certain period of time, the limiting part 61 is moved upward and the second motor 512 is started. The second motor 512 will rotate the rotating shaft 511 through the second gear group, and the rotating shaft 511 will simultaneously rotate all the first bevel gears 533 through the second bevel gear 542, and the first bevel gear 533 will synchronously drive the first turntable 531 to rotate with the shaft as the center point, and the first turntable 531 will rotate the connecting cylinder 522 through the second turntable 532, and the connecting cylinder 522 will rotate the stirring rod 523 with the connecting ball 521 as the fulcrum, so that the stirring rod 523 rotates in a conical shape until the stirring rod 523 is rotated again to the end away from the central shaft cylinder 3 to be inclined upward. At this time, the connecting cylinder 522 is squeezed and limited again by the limiting part 61, and then the first motor 412 is started to drive the central shaft cylinder 3 to stir the polymer in the stirring barrel 2 again, so that the polymer is stirred at different positions by self-rotation.

[0043] After stirring again for a certain period of time, the limit part 61 is first raised to release the limit on the stirring rod 523, and the second motor 512 is started at the same time. At this time, the central shaft cylinder 3 is in a fixed state, and the rotating shaft 511 will carry the stirring rod 523 to perform conical stirring on the polymer, and the first motor 412 can be started at the same time, so that the stirring rod 523 performs conical stirring when the central shaft cylinder 3 rotates, thereby adopting conical single stirring or stirring in combination with rotation to ensure that all materials can be fully mixed.

[0044] See also Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The limiting part 61 includes a second electric push rod 611, a second connecting rod 612, a circular slide 613, a knocking rod 614, a shaped frame 615 and a limiting pressure block 616. The second electric push rod 611 is fixedly installed on the upper end surface of the central shaft tube 3. The telescopic end of the second electric push rod 611 is fixedly installed with the second connecting rod 612 located in the central shaft tube 3. The lower end of the second connecting rod 612 is fixedly installed with a circular slide 613 located above the second support plate 541. The circular slide 613 is slidably connected to the inner ring wall of the central shaft tube 3. A knocking rod 614 corresponding to the connecting hole 545 is fixedly installed on the lower end surface of the circular slide 613. The lower end of the knocking rod 614 is fixedly installed with a shaped frame 615. The limiting pressure block 616 is rotatably installed in the shaped frame 615 through a torsion spring rod.

[0045] During specific operation, when the limiting part 61 needs to limit the position, the second electric push rod 611 is started to make it lower the circular slide plate 613 through the second connecting rod 612, and the circular slide plate 613 will lower the shaped frame 615 through the knocking rod 614 and pass through the connecting hole 545. At this time, the stirring rod 523 is in an inclined state. During the descending process of the shaped frame 615, the two sides of the shaped frame 615 will limit the two sides of the connecting cylinder 522, and when the limiting pressure block 616 contacts the connecting cylinder 522, it will fit with the upper end of the connecting cylinder 522 with the cooperation of the torsion spring rod, and after the limiting pressure block 616 is completely fitted with the connecting cylinder 522, the downward pressure of the limiting pressure block 616 on the connecting cylinder 522 will limit and fix the connecting cylinder 522, so that when the central shaft cylinder 3 rotates with the stirring rod 523 for stirring, the stability of the stirring rod 523 when rotating at different positions during the stirring process can be ensured, so as to ensure the stability during the stirring process.

[0046] See also Figure 5 and Figure 6 The oscillating part 62 includes an adapting rod 621 and a knocking block 622. The adapting rod 621 is arranged inside the stirring rod 523. A plurality of springs are fixedly installed between the adapting rod 621 and the inner ring wall of the stirring rod 523 in a circular array. A plurality of knocking blocks 622 are evenly distributed on the adapting rod 621.

[0047] During specific operation, polymer solutions or melts have shear-thinning characteristics, and the shear force generated by stirring can make the polymer molecular chains align along the flow direction. This orientation effect can temporarily change the flow characteristics of the material, thereby affecting the polymer stirring viscosity. When the polymer is stirred to the required viscosity, the connecting tube 522 can be first limited and fixed by the limiting portion 61. At this time, the knocking rod 614 is at the position of the rubber rod 544, and then the first electric push rod 551 is started in reverse so that it pulls up the spindle-shaped protrusion 553 through the first connecting rod 552, and the spring plug 555 at the second bevel gear 542 is no longer squeezed and returns to its original position, thereby releasing the lock on the second bevel gear 542, and when the spindle-shaped protrusion 553 reaches the position of the upper socket 554, the third turntable 543 is fixed to the rotating shaft 511 by squeezing the corresponding spring plug 555.

[0048] Then, the second motor 512 is started to rotate the rotating shaft 511, so that the third turntable 543 rotates with the rubber rod 544, and the rubber rod 544 will continuously deform and bend and pass over the knocking rod 614, so as to continuously knock the knocking rod 614, and transmit the vibration to the stirring rod 523 through the limiting part 61 to make it vibrate, so as to destroy the bubbles in the polymer by vibration.

[0049] When the vibration is transmitted to the stirring rod 523, the adaptable rod 621 inside the stirring rod 523 will continuously knock the stirring rod 523 from the inside through the knocking block 622 according to the vibration frequency of the outer ring wall of the stirring rod 523 under the action of the spring, thereby combining external and internal vibrations to defoam the polymer in a multi-level manner, which can more effectively destroy and remove bubbles in the polymer in a shorter time.

[0050] See also Figure 2 The pressure relief portion 42 includes a pressure relief circular plate 421, a cylinder 422 and an exhaust valve 423. The pressure relief circular plate 421 is slidably installed in the support seat 1. The central shaft tube 3 passes through the lower end surface of the pressure relief circular plate 421 and is movably connected with it. A cylinder 422 with a telescopic end fixedly connected to the upper end surface of the pressure relief circular plate 421 is fixedly installed on the support seat 1. A plurality of exhaust valves 423 for opening and closing exhaust are evenly distributed in an array on the upper end surface of the pressure relief circular plate 421.

[0051] During specific operation, when the limiting mechanism 6 cooperates with the stirring mechanism 5 to remove bubbles from the polymer, the exhaust valve 423 is opened to maintain the air pressure in the stirring barrel 2 stable, which can effectively discharge the gas generated in the polymer, accelerate the discharge of bubbles, and avoid the formation of new bubbles caused by pressure changes.

[0052] When the polymer needs to be discharged after the polymer stirring is completed, the discharge port set at the lower end of the outer ring wall of the stirring barrel 2 is opened and the exhaust valve 423 is closed, and the cylinder 422 is started to bring the pressure relief circular plate 421 down, thereby accelerating the discharge speed through the air pressure difference and the vibration assistance of the stirring mechanism 5, thereby reducing material retention.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic stirring device for adjusting polymer viscosity, comprising a support base (1), characterized in that: A stirring barrel (2) is fixedly installed in the support seat (1), a central shaft cylinder (3) is rotatably installed at the center of the stirring barrel (2) through a support frame, a main body mechanism (4) is arranged on the stirring barrel (2), and a stirring mechanism (5) for implementing different stirring modes on the polymer is arranged on the main body mechanism (4); The main body mechanism (4) comprises a driving part (41) which is arranged on the stirring barrel (2) and stirs the polymer by circumferential rotation. The stirring barrel (2) is also provided with a pressure relief part (42) for balancing the internal air pressure. The stirring mechanism (5) comprises a rotating part (51) arranged on a central shaft cylinder (3), an executing part (52) for stirring a polymer is arranged on the central shaft cylinder (3), a positioning part (53) for adjusting the stirring position of the executing part (52) and stirring the polymer in a conical radial direction is arranged on the rotating part (51), a matching part (54) is arranged on the rotating part (51), and a conversion part (55) is also arranged on the rotating part (51) for switching between two sets of execution modes: performing knocking vibration on the matching part (54) and providing power for the matching part (54) to the positioning part (53); A limiting mechanism (6) cooperating with the stirring mechanism (5) is provided on the central shaft cylinder (3); The limiting mechanism (6) comprises a limiting portion (61) arranged on the central shaft cylinder (3) and used to limit and fix the execution portion (52); the limiting portion (61) cooperates with the matching portion (54) and is used to perform knocking and vibration to remove bubbles from the polymer after stirring; and an oscillating portion (62) is arranged in the execution portion (52) and is used to assist the matching portion (54) in self-adaptive oscillation to remove bubbles from the polymer; The rotating part (51) comprises a rotating shaft (511), a second motor (512) and a first support plate (513); the executing part (52) comprises a connecting ball (521), a connecting tube (522) and a stirring rod (523); a plurality of connecting balls (521) located above the first support plate (513) are rotatably installed and penetrated on the outer ring wall of the central shaft tube (3) in a circular array manner; a sealing rubber ring is provided on the outer ring wall of the central shaft tube (3) and is in contact with the outer ring wall of the connecting ball (521); a connecting tube (522) penetrating the center of the connecting ball (521) is fixedly installed on the connecting ball (521); a stirring rod (523) is fixedly installed on one end of the connecting tube (522) away from the central shaft tube (3); and a cavity is provided inside the connecting tube (522) and the corresponding stirring rod (523); The adjustment part (53) comprises a first rotating disk (531), a second rotating disk (532) and a first bevel gear (533); a first rotating disk (531) corresponding to a connecting ball (521) is rotatably mounted on one side of the vertical section of the first support plate (513) close to the central shaft cylinder (3) through a shaft rod; an eccentric second rotating disk (532) is mounted on one side of the first rotating disk (531) close to the corresponding connecting cylinder (522) through a bearing; the second rotating disk (532) is hinged to the corresponding connecting cylinder (522); and the first bevel gear (533) is fixedly mounted on the sides of the first rotating disk (531) close to each other; The matching portion (54) comprises a second support plate (541), a second bevel gear (542), a third rotating disk (543), a rubber rod (544) and a connecting hole (545); the inner ring wall of the central shaft tube (3) is fixedly mounted with the second support plate (541) located above the first support plate (513); the lower end surface of the second support plate (541) is mounted with the second bevel gear (542) via a bearing; the second bevel gear (542) is meshedly connected with a plurality of first bevel gears (533) at the same time; the upper end surface of the second support plate (541) is mounted with the third rotating disk (543) via a bearing; the lower end of the rotating shaft (511) movably passes through the second support plate (541), the second bevel gear (542) and the third rotating disk (543); a plurality of rubber rods (544) are fixedly mounted in a circumferential array on the upper end surface of the third rotating disk (543); and the upper end surface of the second support plate (541) is penetrated with connecting holes (545) corresponding to the connecting balls (521) one by one.

2. The automatic stirring device for adjusting polymer viscosity according to claim 1, characterized in that: The driving part (41) comprises a supporting triangle plate (411) and a first motor (412); the supporting triangle plate (411) is fixedly mounted on the supporting frame; the first motor (412) is fixedly mounted on the supporting triangle plate (411); and the output end of the first motor (412) is transmission-connected to the central shaft cylinder (3) via a first gear set.

3. The automatic stirring device for adjusting polymer viscosity according to claim 1, characterized in that: The pressure relief portion (42) comprises a pressure relief circular plate (421), a cylinder (422) and an exhaust valve (423); the pressure relief circular plate (421) is slidably mounted in the support seat (1); the central shaft tube (3) penetrates the lower end surface of the pressure relief circular plate (421) and is movably connected thereto; a cylinder (422) having a telescopic end fixedly connected to the upper end surface of the pressure relief circular plate (421) is fixedly mounted on the support seat (1); and a plurality of exhaust valves (423) for opening and closing exhaust are evenly distributed in an array on the upper end surface of the pressure relief circular plate (421).

4. The automatic stirring device for adjusting polymer viscosity according to claim 1, characterized in that: A rotating shaft (511) with a cavity inside is installed at the center of the central shaft tube (3) through a bearing, a second motor (512) is fixedly installed on the upper end surface of the central shaft tube (3) through a motor group, an output end of the second motor (512) and the rotating shaft (511) are transmission-connected through a second gear group, a first support plate (513) with an L-shaped cross section is fixedly installed on the inner ring wall of the central shaft tube (3), and the rotating shaft (511) passes through the first support plate (513) and is movably connected thereto.

5. The automatic stirring device for adjusting polymer viscosity according to claim 4, characterized in that: The conversion part (55) comprises a first electric push rod (551), a first connecting rod (552), a spindle-shaped protrusion (553), a socket (554) and a spring plug rod (555); the first electric push rod (551) is fixedly mounted on the upper end surface of the rotating shaft (511); the telescopic end of the first electric push rod (551) is fixedly mounted with a first connecting rod (552) located inside the rotating shaft (511); the lower end of the first connecting rod (552) is fixedly mounted with a spindle-shaped protrusion (553); the inner ring wall of the rotating shaft (511) is A plurality of jacks (554) are provided in two groups, one above the other, in a circular array and located at the second bevel gear (542) and the third rotating disk (543), respectively. Matching holes corresponding to the jacks (554) are provided on the inner ring walls of the second bevel gear (542) and the third rotating disk (543). A spring plug rod (555) is provided in the plug rod (554). The spring plug rod (555) is composed of a slide rod slidably connected to the plug rod (554) and a spring fixedly installed between the slide rod and the plug rod (554).

6. The automatic stirring device for adjusting polymer viscosity according to claim 1, characterized in that: The limiting part (61) comprises a second electric push rod (611), a second connecting rod (612), a circular slide plate (613), a knocking rod (614), a shaped frame (615) and a limiting pressing block (616); the second electric push rod (611) is fixedly mounted on the upper end surface of the central shaft tube (3); the second connecting rod (612) located in the central shaft tube (3) is fixedly mounted on the telescopic end of the second electric push rod (611); the second connecting rod (612) A circular slide plate (613) located above the second support plate (541) is fixedly installed at the lower end, the circular slide plate (613) is slidably connected to the inner ring wall of the central shaft tube (3), a knocking rod (614) corresponding to the connecting hole (545) is fixedly installed on the lower end surface of the circular slide plate (613), a shaped frame (615) is fixedly installed at the lower end of the knocking rod (614), and a limit pressure block (616) is rotatably installed in the shaped frame (615) through a torsion spring rod.

7. The automatic stirring device for adjusting polymer viscosity according to claim 1, characterized in that: The oscillating part (62) comprises an adapting rod (621) and a knocking block (622); the adapting rod (621) is arranged inside the stirring rod (523); a plurality of springs are fixedly installed between the adapting rod (621) and the inner ring wall of the stirring rod (523) in a circular array; and a plurality of knocking blocks (622) are evenly distributed on the adapting rod (621).

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