PVC pipe raw material mixing and proportioning device

Abstract

The application belongs to the technical field of mixing, and particularly relates to a PVC pipe raw material mixing and proportioning device, which comprises a device main body, a material barrel for containing material is arranged in the mixing assembly, a rotating rod is rotatably connected to the middle of the material barrel, a plurality of stirring pieces are fixedly connected to the rotating rod, the stirring piece comprises two stirring rods arranged in an upper and lower mode, two rotating pieces are arranged between the two stirring rods and are arranged at the two ends of the stirring rod respectively, and helical extrusion blocks are arranged on the two rotating pieces. By opening the switch of the outer control cylinder one of the device main body, the cylinder one is driven to open and push the connecting piece to the middle of the stirring rod, so that the two rotating pieces are close to each other and the helical extrusion blocks are embedded in each other to achieve meshing. Thus, by rotating in opposite directions, the helical extrusion blocks continuously extrude the material flowing into the rotating piece after the motor one is opened, so that the caked material is crushed, thereby reducing the caking of the material and making the mixing more sufficient.

Description

Technical Field

[0001] This invention discloses a mixing and proportioning device, and more particularly relates to a mixing and proportioning device for PVC pipe raw materials. Background Technology

[0002] The production process of PVC pipes is diverse. The first step is to mix the raw materials for PVC pipe processing. The mixing process mainly involves physically mixing various dry raw materials such as PVC resin, stabilizers, lubricants, and fillers. The effect is to raise the temperature of the mixed materials to the required temperature through high-speed stirring, and at the same time form a dry material that can be directly extruded.

[0003] Because it is a dry mixture and no water needs to be added during the mixing process, the raw materials may clump together during the mixing process and are not easy to break down, thus requiring a long mixing time. In addition to increasing the mixing time, existing technologies use multiple stirring rods or stirring components to accelerate the mixing and crushing of materials, reduce dead zones, improve mixing uniformity, and enhance flow. Although the addition of stirring components by the pusher type can improve the mixing effect, it is still relatively difficult to crush the clumped materials. Therefore, this application proposes another solution: to improve the mixing effect by crushing during the mixing process. Summary of the Invention

[0004] The purpose of this invention is to provide a PVC pipe raw material mixing and proportioning device to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a PVC pipe raw material mixing and proportioning device, comprising a main body, the main body including a material mixing component and a storage component for proportioning and storage, a conveying pipe I between the storage component and the mixing component, an extrusion device and a mold tube at the rear end of the main body of the mixing component, a conveying pipe II between the extrusion device and the mixing component, the mixing component including a material bucket for holding materials, a rotating rod rotatably connected to the middle of the material bucket, a plurality of stirring components fixedly connected to the rotating rod, the stirring component including upper and lower stirring rods, two rotating components between the two stirring rods, the two rotating components respectively set at the beginning and end of the stirring rods, a spiral extrusion block on the two rotating components, and the rotating components slidably connected to the stirring rods, the stirring rod being provided with a driving component for driving the two rotating components to move and rotate;

[0006] The drive assembly includes two rotating parts with bevel gears engaged on them. A rotating shaft is rotatably connected inside the stirring rod. A second bevel gear, which meshes with the first bevel gear, is slidably connected to the rotating shaft. The lower end of the first bevel gear is connected to the rear end of the second bevel gear via a connector, and both ends of the connector are rotatably connected to the rotating parts and the rotating shaft, respectively. A cylinder is provided inside the stirring rod to push the connector and the second bevel gear to move. A motor is fixedly installed inside the stirring rod to control the rotation of the rotating shaft. The two rotating parts are symmetrically arranged, and the spiral extrusion blocks on the two rotating parts rotate in opposite directions. A guide assembly is provided on the stirring rod to guide the flow of materials.

[0007] Preferably, the guiding assembly includes baffles on both sides of the stirring rod. The baffles are divided into baffle one and baffle two. One end of baffle one is rotatably connected to the stirring rod, and the other end of baffle one is rotatably connected to baffle two. A pull rod is provided on the connecting member. The end of baffle two away from baffle one is connected to one end of the pull rod, and the other end of the pull rod is connected to the connecting member. Both ends of the pull rod are rotatably connected to the connecting member and baffle two, respectively. A guide groove one is provided on the stirring rod located at the bottom of the rotating member to guide the movement of the connection between baffle two and baffle one.

[0008] Preferably, the baffle is provided with a blocking block 1 at the connection point with the baffle 2 to prevent the baffle 2 from rotating excessively, and the stirring rod is provided with a blocking block 2 that abuts against the baffle 2 after it moves.

[0009] Preferably, the stirring rod is provided with an extrusion component located between the two rotating parts, and the extrusion component is divided into upper and lower extrusion discs. The extrusion discs are provided with telescopic rods fixedly installed with the stirring rods, and the telescopic rods are controlled to extend and retract by a cylinder.

[0010] Preferably, the telescopic rod is provided with a second motor at its far end, and the second motor is fixedly connected to the end of the telescopic rod. The shaft of the second motor is slidably connected to the extrusion disc, and the extrusion disc is rotatably connected to the telescopic rod.

[0011] Preferably, a tension spring is provided between the cylinder and the telescopic rod to pull the telescopic rod back to its original position. The extrusion plate is provided with a protrusion that is embedded in the last section of the telescopic rod. The end of the telescopic rod is provided with an arc-shaped groove that guides the extrusion plate to move up and down. The bottom of the arc-shaped groove is connected to an annular groove, and the length of the annular groove is equal to the distance that the two extrusion plates rotate in contact.

[0012] Preferably, a cleaning component is slidably connected to the extrusion disc, the extrusion disc is provided with a slot for accommodating the embedded cleaning component, and a spring is provided between the cleaning component and the extrusion disc.

[0013] Preferably, the stirring rod is provided with a sensor for sensing the connector at the initial position of the connector, and the cylinder 2 is provided with a controller for receiving the sensor signal and controlling whether the cylinder 2 is turned on or off.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] Firstly, the rotation of this device can break up and mix materials. Secondly, by turning on the motor, the rotation of the rotating parts, driven by the stirring rod, changes the direction of material flow and increases the flow direction, allowing for more thorough mixing of various materials. Furthermore, when resin or other liquids are added, stirring can easily cause materials to clump. In this case, the switch of the control cylinder on the outside of the main body of the equipment can be turned on, driving the cylinder to open and push the connecting part closer to the middle of the stirring rod, so that the two rotating parts come together and the spiral extrusion blocks interlock and mesh. Thus, by rotating in opposite directions, the spiral extrusion blocks rotate and mesh after the motor is turned on, continuously squeezing the material flowing into the rotating parts, thereby crushing the clumped material, reducing material clumping, and making the mixing more thorough.

[0016] Secondly, the connecting part is pushed and moved by the cylinder, and the connecting part will drive the pull rod to move synchronously. The pull rod will pull the rotating baffle 2 to unfold. When the baffle 2 moves, it will also drive the rotating baffle 1 to unfold synchronously. The baffle 1 moves along the guide groove 1 in an inclined state. After moving, the baffle 1 and baffle 2 will block the material in contact. The blocked material will flow along the baffle 1 and baffle 2 to the two rotating parts. This ensures that the material gathers at the rotating parts as much as possible and passes through the rotating parts and is squeezed by the rotating parts, which can better crush and squeeze the clumps of material.

[0017] Thirdly, when the two rotating parts move away from each other and reset, the sensor outputs a signal to the controller. At this time, cylinder two is driven and inflated into the telescopic rod, changing the internal air pressure and pushing the telescopic rod to extend. This causes the extrusion disc and motor two to move downwards, and the two extrusion discs move closer together. In this state, when the stirring rod rotates, the extrusion disc and telescopic rod can also disperse and push the material, increasing its fluidity. Secondly, if the motor two is turned on, the bottom extrusion disc rotates, allowing the two extrusion discs to crush the material between them. When motor two is turned on, the rotation of the extrusion disc causes the protrusion to move upwards along the arc groove, moving the two extrusion discs away from each other. Then, it moves downwards along the arc groove, bringing the two extrusion discs closer together, allowing the material to enter between the two extrusion discs. Simultaneously, the material is squeezed and rotated along the annular groove, achieving the effect of crushing the material. This repeated clamping, squeezing, and crushing of the material has the same effect as a grinding disc, changing the flow of the material and making the material more thoroughly crushed, resulting in a more complete and uniform mixture. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a PVC pipe raw material mixing and proportioning device;

[0019] Figure 2 A schematic diagram of the internal structure of a material tank in a PVC pipe raw material mixing and proportioning device;

[0020] Figure 3 A schematic diagram of the structure of the mixing component of a PVC pipe raw material mixing and proportioning device. Figure 1 ;

[0021] Figure 4 A schematic diagram of the structure of the mixing component of a PVC pipe raw material mixing and proportioning device. Figure 2 ;

[0022] Figure 5 for Figure 4 A magnified view of a portion at point A;

[0023] Figure 6 A schematic diagram of the internal structure of an extrusion component in a PVC pipe raw material mixing and proportioning device. Figure 1 ;

[0024] Figure 7 A schematic diagram of the internal structure of an extrusion component in a PVC pipe raw material mixing and proportioning device. Figure 2 .

[0025] Reference numerals in the attached drawings: 1. Main body of the equipment; 2. Storage component; 3. Conveying pipe one; 4. Extrusion device; 5. Mold pipe; 6. Conveying pipe two; 7. Material bucket; 8. Rotating rod; 9. Stirring rod; 10. Rotating component; 11. Extrusion block; 12. Bevel gear one; 13. Rotating shaft; 14. Bevel gear two; 15. Connecting component; 16. Cylinder one; 17. Motor one; 18. Baffle one; 19. Baffle two; 20. Pull rod; 21. Guide groove one; 22. Block one; 23. Block two; 24. Controller; 25. Extrusion disc; 26. Telescopic rod; 27. Cylinder two; 28. Motor two; 29. ​​Tension spring; 30. Protrusion; 31. Arc groove; 32. Annular groove; 33. Cleaning component; 34. Slot; 35. Spring; 36. Sensor. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. In this description, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] A PVC pipe raw material mixing and proportioning device, such as Figures 1-7As shown, the device includes a main body 1, which includes a material mixing component and a storage unit 2 for proportioning and storage. A conveying pipe 3 is provided between the storage unit 2 and the mixing component. An extrusion device 4 and a mold tube 5 are provided at the rear end of the mixing component on the main body 1. A second conveying pipe 6 is provided between the extrusion device 4 and the mixing component. The mixing component includes a material bucket 7 for holding materials. When using similar devices normally, the required materials are usually placed on the upper end of the storage unit 2 in advance. According to the mixing component, the materials to be mixed are weighed according to the weight ratio and placed into the storage unit 2. The materials are then fed into the mixing component through the first conveying pipe 3. The mixing component continuously mixes and stirs the materials until they are uniform. The materials are then discharged and conveyed to the extrusion device 4 through the extraction device or screw extrusion. The materials are then extruded into the mold tube 5 through the extrusion device 4 to form PVC pipes. The pipes are then stretched, cooled, and shaped. However, in existing mixing methods, one or more sets of stirring rods 9 are used to continuously push and disperse the fed materials to achieve mixing. However, although no water is added when mixing PVC pipes, some resin or lubricant is added, which makes the mixed materials prone to clumping.

[0028] A rotating rod 8 is rotatably connected to the middle of the material bucket 7. Several stirring components are fixedly connected to the rotating rod 8. The stirring components include two upper and lower stirring rods 9, and two rotating components 10 are provided between the two stirring rods 9. The two rotating components 10 are respectively located at the beginning and end of the stirring rods 9. The two rotating components 10 are provided with spiral extrusion blocks 11, and the rotating components 10 are slidably connected to the stirring rods 9. The stirring rods 9 are provided with a driving assembly for driving the movement and rotation of the two rotating components 10. The driving assembly includes a bevel gear 12 engaged with the two rotating components 10. A rotating shaft 13 is rotatably connected inside the stirring rods 9. A bevel gear 14 that meshes with the bevel gear 12 is slidably connected to the rotating shaft 13. The lower end of the bevel gear 12 and the rear end of the bevel gear 14 are connected by a connector 15. The connection is made so that the two ends of the connecting part 15 are rotatably connected to the rotating part 10 and the rotating shaft 13 respectively. The stirring rod 9 is equipped with a cylinder 16 that pushes the connecting part 15 and the bevel gear 14 to move. The stirring rod 9 is fixedly equipped with a motor 17 that controls the rotation of the rotating shaft 13. The two rotating parts 10 are symmetrically arranged, and the spiral extrusion blocks 11 on the two rotating parts 10 rotate in opposite directions. After using this device, other stirring blades are also alternately arranged between the stirring parts. Multiple stirring parts of this application can also be staggered vertically. Thus, during stirring, the stirring rod 9 and the rotating part 10 are pushed by the rotating rod 8 to contact the material, which can also push the material to change its flow direction and mix the material. At the same time, under normal conditions, by using the equipment When the switch of motor 17 outside the main body 1 is turned on, the rotating shaft 13 rotates, driving bevel gear 14 to drive the meshing bevel gear 12, thereby causing the rotating part 10 to rotate. At the same time, the stirring rod 9 is also driven to rotate along the center of the rotating rod 8, thus pushing the material to move and mix. The material in contact with the rotating part 10 will also be driven to change its direction of movement by the rotational force of the rotating part 10. This allows the material to be stirred at different positions or angles, forming diverse flow fields that allow for better exchange of materials, improving stirring efficiency and making the stirring more uniform and effective. Secondly, if resin, stabilizers, lubricants, or other substances are added during stirring or after a period of time, and the material is more prone to clumping, the cylinder 1 can be... When switch 16 is turned on, the piston pushes connector 15 to move, causing bevel gear 12, bevel gear 14, and rotating component 10 to move synchronously. Connector 15 prevents bevel gear 12 and bevel gear 14 from separating. Simultaneously, when motor 17 is turned on and rotating shaft 13 rotates, it still drives the engaged bevel gear 14 to rotate. Since bevel gear 14 and bevel gear 12 are rotatably connected to connector 15, connector 15 ensures it does not interfere with the rotation of bevel gear 12 and bevel gear 14, and can also slide along rotating shaft 13. Thus, bevel gear 14 rotates, driving the meshing bevel gear 12 and rotating component 10. Simultaneously, the two rotating components 10, pushed closer together, move synchronously.This allows the spiral extrusion blocks 11 to interlock and mesh. Once meshed, the motors 17 on both sides drive synchronously, but in opposite directions, causing the extrusion blocks 11 to mesh and crush the material entering between the rotating parts 10. This reduces material clumping, resulting in finer material crushing and better mixing.

[0029] The stirring rod 9 is equipped with a guiding component to guide the flow of materials. The guiding component includes baffles on both sides of the stirring rod 9, which are baffle one 18 and baffle two 19. One end of baffle one 18 is rotatably connected to the stirring rod 9, and the other end of baffle one 18 is rotatably connected to baffle two 19. A pull rod 20 is provided on the connecting member 15. The end of baffle two 19 away from baffle one 18 is connected to one end of pull rod 20, and the other end of pull rod 20 is connected to the connecting member 15. Both ends of pull rod 20 are rotatably connected to the connecting member 15 and baffle two 19, respectively. The stirring rod 9 located at the bottom of the rotating member 10 is provided with a guiding groove one 21 to guide the movement of the connection between baffle two 19 and baffle one 18. Baffle one 18 is provided with a blocking block one 22 at the connection with baffle two 19 to prevent excessive rotation of baffle two 19. A blocking block two 23 is provided inside the stirring rod 9 to abut against baffle two 19 after it moves. Secondly, the cylinders 16 and motor 17 of the two rotating parts 10 open synchronously. This operation is existing technology, and can be achieved by circuit series connection or PLC program setting, so it will not be described in detail. With the two opening synchronously, when the rotating part 10 moves, it will drive the pull rod 20 connected to the connecting part 15 to move synchronously. The path of movement of the baffle 18 is restricted by the guide groove 21, so the movement path will not change. By moving the pull rod 20 laterally, the baffle 29 and the rotating connection of the pull rod 20 are pulled first, so that the pull rod 20 rotates, is pulled out and rotates along the connection with the baffle 18. The baffle 29 will drive the rotating baffle 18 to rotate and rotate along the guide groove 21 and unfold, moving from a vertical position to an inclined position. At the same time, after the downward tilt is restricted by the guide groove 21, the baffle 18 moves along the guide groove 21 to the end. Then, the blocking block 23 restricts the excessive rotation of the baffle 29. Thus, the guide groove 21 restricts the baffle 18, and the blocking block 22 on the baffle 18 and the blocking block 23 on the stirring rod 9 mutually restrict and position it, thus presenting an inclined state. When the stirring rod 9 rotates, the material pushed and contacted by the baffle 18 and the baffle 29 will flow along the baffle 18 and the baffle 29 to the two rotating parts 10. The material is pushed into the space between the two rotating parts 10 by the rotation of the rotating parts 10, and is squeezed and crushed. This reduces the agglomeration of the material. The blocking and the concentrated flow direction better crush the material and make the material more fully mixed.

[0030] A stirring rod 9 is positioned between two rotating parts 10 and has an extrusion component. The extrusion component consists of upper and lower extrusion discs 25. A telescopic rod 26, fixedly mounted on the extrusion discs 25, is attached to the stirring rod 9. The telescopic rod 26 is controlled to extend and retract by a cylinder 27. A motor 28 is attached to the end of the telescopic rod 26 and is fixedly connected to the end of the telescopic rod 26. The shaft of the motor 28 is slidably connected to the extrusion discs 25, and the extrusion discs 25 are rotatably connected to the telescopic rod 26. A tension spring 29 is provided between the cylinder 27 and the telescopic rod 26 to reposition the telescopic rod 26. A sensor 36 for sensing the connector 15 is located at the initial position of the stirring rod 9. A controller 24 is provided on the cylinder 27 to receive signals from the sensor 36 and control whether the cylinder 27 is open or closed. An extrusion plate 25 is provided between the stirring rods 9 and the two rotating parts 10. When the stirring rods 9 are driven by the rotating rods 8 to push the material, the telescopic rod 26 and the extrusion plate 25 can divert the material passing between the two stirring rods 9, thereby increasing the diversity of flow directions and making the material more uniformly mixed. Secondly, when the two rotating parts 10 move towards the middle, the sensor 36 will detect it and output a signal to the controller 24 to control the cylinder 27 to release air. At the same time, the tension spring 29 between the cylinder 27 and the telescopic rod 26 will pull the end of the telescopic rod 26 upward. Thus, when the end of the telescopic rod 26 moves upward, it will simultaneously push all the telescopic rods 26 upward and embed them into the stirring rods 9, so as to ensure that the two rotating parts 10 are not blocked by the extrusion plate 25 when moving towards the middle.

[0031] The extrusion plate 25 is provided with a protrusion 30 embedded in the last section of the telescopic rod 26. The end of the telescopic rod 26 is provided with an arc-shaped groove 31 to guide the extrusion plate 25 to move up and down. The bottom of the arc-shaped groove 31 is connected to an annular groove 32, and the length of the annular groove 32 is equal to the distance of the two extrusion plates 25 rotating in contact. Conversely, when the two rotating parts 10 move away from each other and reset, after the connecting part 15 resets, the sensor 36 senses again and outputs a signal to the controller 24. The controller 24 then controls the external air pump to start and inflate the cylinder 27. The cylinder 27 inflates the telescopic rod 26, and the increased internal air pressure pushes the telescopic rod 26 to move outward. The extended telescopic rod 26 stretches the tension spring 29 and moves the extrusion plate 25 and the motor 28 downward at the same time, so that the extrusion plates 25 of the upper and lower stirring rods 9 are close together, and the extrusion plate 25 of the lower stirring rod 9 and the extrusion plate 25 of the upper stirring rod 9 are positioned... The two extrusion plates are set up in a consistent and symmetrical state, except that the second motor 28 rotates in the opposite direction. After the telescopic rod 26 drives the extrusion plate 25 to fully extend, the two extrusion plates 25 will stick together. During this sticking process, the material will be squeezed. If the material is clumped, it will be crushed. At the same time, the second motor 28 is also turned on, so that the shaft of the second motor 28 drives the extrusion plates 25 to stick together and rotate. This crushes the material between the two extrusion plates 25, which is similar to the effect of a grinding disc. The material that is stuck together is crushed and then crushed by rotation and extrusion, so that the material will not stick together and can be mixed evenly.

[0032] Simultaneously, when the extrusion disc 25 is driven to rotate, the protrusion 30 is moved from the bottom of the arc-shaped groove 31 to the annular groove 32. The annular groove 32 is horizontal, and when the protrusion 30 is located in the annular groove 32, the extrusion disc 25 is at its furthest point from the telescopic rod 26, and the two extrusion discs 25 are close together. At this time, the two extrusion discs 25, driven by the motor 28, rotate in opposite directions, crushing the material. When they reach the end of the annular groove 32, the annular groove 32 connects with the arc-shaped groove 31. Continuing to move, they will embed into the arc-shaped groove 31 and rise. The arc-shaped groove 31 is an inverted V-shape. Thus, after the extrusion disc 25 rotates and crushes the material for a period, it will rise. When the protrusion 30 moves and rises, the extrusion disc 25 separates. When it reaches the top of the V-shaped arc groove 31, continuing to move along the top of the inverted V, the protrusion 30 will move downwards, and the two extrusion discs 25 will continue to close together and re-extrude the material. Thus, the telescopic rod 26 drives the extrusion disc 25 to expand... After starting, the motor 28 can be controlled by a switch outside the main body 1 or synchronized with the switch of cylinder 27. However, motor 28 is equipped with a timer, which can also control motor 28. This is existing technology and will not be discussed further. When motor 28 is turned on, it will continuously drive the extrusion disc 25 to rotate and reciprocate up and down to achieve the effect of extruding material. When the extrusion disc 25 rotates along the rotating rod 8, it will continuously extrude the material passing between the extrusion discs 25. Finally, because motor 28 is fixed to the telescopic rod 26 and cannot rotate, when the rotating shaft inside motor 28 rotates, it will drive the connected extrusion disc 25 to rotate. At the same time, under the restriction of the fixed telescopic rod 26, the blocking force of the inner wall of the arc groove 31 and the rotational force of the rotating shaft of motor 28 can make the extrusion disc 25 move up and down. At the same time, when stationary, it cannot rotate through the rotating shaft and the telescopic rod 26. Meanwhile, the weight of the extrusion disc 25 is less than the resistance of the rotating shaft and motor 28, thus achieving the effect of fixing the extrusion disc 25. The aforementioned design prevents the extrusion disc 25 from loosening due to rotation and contact with the material. Furthermore, it maintains its position during rotation without deviation or material obstruction, ensuring proper material compression. Switching between different compression states allows for better material crushing, breaking down lumps and agglomerates into smaller, finer clumps. The stirring rod 9 continues to push, further breaking up the clumps. Compression and grinding further pulverize larger clumps, resulting in a finer mixture and more uniform blending. A cleaning component 33 is slidably connected to the extrusion disc 25, which has a slot 34 for accommodating it. A spring 35 connects the cleaning component 33 to the extrusion disc 25.Secondly, when the two extrusion discs 25 are not in contact, the cleaning component 33 rotates, which can promote flow and reduce material retention. This avoids the situation where the material flow is too slow during extrusion, resulting in too much material retention at once, and the extrusion discs 25 getting stuck due to excessive material resistance. During extrusion, the contact of the two extrusion discs 25 will push the cleaning component 33 into the slot 34 and compress the spring 35. After extrusion, the extrusion discs 25 move away, and the cleaning component 33 is pushed out by the spring 35. The synchronous rotation can push the crushed material away from the rotating disc to accommodate subsequent material to continue entering.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A PVC pipe raw material mixing and proportioning device, comprising a main body (1), the main body (1) including a material mixing component and a storage component (2) for proportioning and storage, a conveying pipe (3) being provided between the storage component (2) and the mixing component, an extrusion device (4) and a mold pipe (5) being provided at the rear end of the mixing component of the main body (1), and a second conveying pipe (6) being provided between the extrusion device (4) and the mixing component, characterized in that: The mixing assembly comprises a material barrel (7) for containing material, a rotating rod (8) rotatably connected to the middle of the material barrel (7), and a plurality of stirring pieces fixedly connected to the rotating rod (8), wherein the stirring pieces comprise two stirring rods (9), two rotating pieces (10) are arranged between the two stirring rods (9), and the two rotating pieces (10) are respectively arranged at the first end and the second end of the stirring rod (9), the two rotating pieces (10) are provided with helical extrusion blocks (11), and the rotating pieces (10) are slidably connected to the stirring rod (9), and the stirring rod (9) is provided with a driving assembly for driving the two rotating pieces (10) to move and rotate. The driving assembly comprises a bevel gear one (12) clamped on the two rotating pieces (10), a rotating shaft (13) rotatably connected to the stirring rod (9), a bevel gear two (14) slidably connected to the rotating shaft (13) and engaged with the bevel gear one (12), and a connecting piece (15) connecting the lower end of the bevel gear one (12) and the rear end of the bevel gear two (14), wherein the two ends of the connecting piece (15) are rotatably connected to the rotating piece (10) and the rotating shaft (13), respectively, a cylinder one (16) is arranged in the stirring rod (9) for driving the connecting piece (15) and the bevel gear two (14) to move, a motor one (17) is fixedly arranged in the stirring rod (9) for controlling the rotation of the rotating shaft (13), the two rotating pieces (10) are symmetrically arranged, the helical extrusion blocks (11) on the two rotating pieces (10) rotate in opposite directions, and the stirring rod (9) is provided with a guide assembly for guiding the flow of material.

2. The PVC pipe raw material mixing and proportioning device according to claim 1, characterized in that: The guide assembly comprises baffles arranged on both sides of the stirring rod (9), the baffles are divided into a baffle one (18) and a baffle two (19), one end of the baffle one (18) is rotatably connected to the stirring rod (9), the other end of the baffle one (18) is rotatably connected to the baffle two (19), a pull rod (20) is arranged on the connecting piece (15), one end of the baffle two (19) away from the baffle one (18) is connected to one end of the pull rod (20), the other end of the pull rod (20) is connected to the connecting piece (15), and the two ends of the pull rod (20) are rotatably connected to the connecting piece (15) and the baffle two (19), respectively, and a guide groove one (21) is arranged on the stirring rod (9) at the bottom of the rotating piece (10) for guiding the movement of the connection between the baffle two (19) and the baffle one (18).

3. The PVC pipe raw material mixing and proportioning device according to claim 2, characterized in that: The baffle one (18) is provided with a blocking block one (22) at the connection with the baffle two (19) for preventing the baffle two (19) from excessively rotating, and the stirring rod (9) is provided with a blocking block two (23) for abutting against the baffle two (19) after moving.

4. The PVC pipe raw material mixing and proportioning device according to claim 1, characterized in that: The stirring rod (9) is provided with an extrusion piece at the middle of the two rotating pieces (10), and the extrusion piece is divided into two extrusion discs (25), the extrusion discs (25) are provided with telescopic rods (26) fixedly arranged on the stirring rod (9), and the telescopic rods (26) are controlled to be extended and retracted by a cylinder two (27).

5. The PVC pipe raw material mixing and proportioning device according to claim 4, characterized in that: The telescopic rod (26) is provided with a motor (28) at the end, and the motor (28) is fixedly connected with the end of the telescopic rod (26), the shaft of the motor (28) is slidably connected with the extrusion disc (25), and the extrusion disc (25) is rotatably connected with the telescopic rod (26).

6. The PVC pipe raw material mixing and proportioning device according to claim 5, characterized in that: The telescopic rod (26) is provided with a motor (28) at the end, and the motor (28) is fixedly connected with the end of the telescopic rod (26), the shaft of the motor (28) is slidably connected with the extrusion disc (25), and the extrusion disc (25) is rotatably connected with the telescopic rod (26).

7. The PVC pipe raw material mixing and proportioning device according to claim 5, characterized in that: The extrusion disc (25) is slidably connected with a cleaning piece (33), the extrusion disc (25) is provided with a clamping groove (34) for accommodating the cleaning piece (33), and the cleaning piece (33) and the extrusion disc (25) are provided with a spring (35).

8. The PVC pipe raw material mixing and proportioning device according to claim 4, characterized in that: The stirring rod (9) is provided with an inductor (36) for sensing the connecting piece (15) at the initial position of the connecting piece (15), and the cylinder (27) is provided with a controller (24) for receiving the signal of the inductor (36) and controlling the opening or closing of the cylinder (27).

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