PA66 composite material raw material mixing device and mixing method
By using a vertical rotary hopper and baffle design, the problem of mixing new and old materials affecting the proportioning in the PA66 composite material mixing device was solved, achieving efficient mixing and continuous discharge, and improving production efficiency and proportioning accuracy.
Patent Information
- Application Number
- CN202511327565.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-17
- Publication Date
- 2025-10-31
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing PA66 composite material mixing devices suffer from low mixing efficiency, the mixing of new and old materials affects the proportioning, and the unloading process is time-consuming.
The vertical rotary hopper design uses partitions to separate newly added proportioned materials into independent mixing chambers. The partitions and agitators are driven by a transmission belt to achieve material separation, mixing, and continuous discharge, avoiding mixing of new and old materials.
It improved the efficiency of raw material mixing, ensured the accuracy of the proportions, reduced waiting time, and increased production efficiency.
Smart Images
Figure CN120862892A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of raw material mixing technology, specifically to a PA66 composite material raw material mixing device and mixing method. Background Technology
[0002] PA66 composite material is composed of polyamide 66 resin as the matrix, with the addition of glass fiber, toughening agent, flame retardant and other components. It is usually in granular form, comes in various colors, and has excellent properties such as high strength, high rigidity, good wear resistance, corrosion resistance and high temperature resistance. It is widely used in many fields such as automotive parts, electronics, and machinery manufacturing.
[0003] In the processing of PA66 composite materials, various solid granular raw materials must first be mixed, then poured into a melting device, and after melting, extruded through a screw extruder and squeezed into a mold to cool and form. Among these, the mixing process is crucial, as the mixing effect directly affects the quality of the finished product, and the mixing efficiency also plays a decisive role in the processing efficiency.
[0004] Existing mixing devices typically involve pouring the pre-proportioned PA66 main raw materials and ingredients into a mixing tank, and then mixing the materials by stirring them with a stirring shaft. However, this method has some problems. For example, if new materials are added before all the materials have been poured out, the old and new materials will mix, affecting the quality of the already mixed materials. In addition, there is a waiting process before adding new materials after all the materials have been poured out. Combined with the time spent on loading and unloading, this results in low mixing efficiency and production efficiency. Summary of the Invention
[0005] To overcome the shortcomings of existing technologies, this invention proposes a PA66 composite material raw material mixing device and mixing method. In this invention, the newly entered pre-mixed material is separated into an independent stirring chamber by a partition, so that the new and old materials do not mix. This avoids the situation where the mixing ratio is affected by the mixing and contact of the new and old materials, thus ensuring the mixing ratio of raw materials and improving the mixing efficiency.
[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: A PA66 composite material raw material mixing device of the present invention includes a vertically rotating hopper and a support frame supporting the lower part of the hopper; a rear shell is fixedly connected to the rear side of the hopper; two rotating rollers extending into the inner side of the hopper are rotatably connected to the front side of the rear shell; the two rotating rollers are driven by a transmission belt; the transmission belt covers and seals the inner groove of the hopper; partitions are evenly connected to the outer wall of the transmission belt along the transmission direction; the partitions are movably and sealedly connected to the rotating cavity inside the hopper; one of the rotating rollers is fixedly connected to a motor facing rearward; the motor housing is fixedly connected to the rear shell; a discharge nozzle communicating with the rotating cavity is provided at the bottom of the hopper facing downward; a feed nozzle communicating with the rotating cavity is provided on the side of the hopper facing upward; multiple feed plates are distributed in the front-to-back direction inside the feed nozzle; an agitator is provided between two adjacent partitions.
[0007] Preferably, the front and rear sections of the feed nozzle are the same; the feed rod is fixedly connected to the inner sides of the front and rear of the feed nozzle; the feed plate is slidably and sealingly connected to the outer wall of the feed rod; and the feed plate is slidably and sealingly connected to the inner wall of the feed nozzle.
[0008] Preferably, the upper inner wall of the feed nozzle is provided with a locking groove that covers the front-to-back sliding range of the feed plate; a locking plate is slidably connected in the locking groove; a bolt threaded to the feed nozzle is rotatably connected to the outer side of the locking plate; and multiple locking bars are fixedly connected to the inner side of the locking plate along the front-to-back direction.
[0009] Preferably, the inner side of the hopper is provided with a rotary rack; the number of racks is two; the outer wall of the rotating roller is provided with an annular groove for the racks to bypass and avoid; the two racks are fixedly connected to the rear shell through a tooth seat; the agitator is composed of a rotating rod and a spiral plate; the spiral plate is fixedly connected to the rotating rod; the rotating rod passes through the transmission belt and is rotatably and sealingly connected to the transmission belt; the end of the rotating rod away from the spiral plate is fixedly connected to a gear that meshes with the rack; the gear can pass through the annular groove.
[0010] Preferably, the spiral directions of the front and rear spiral plates are opposite; at the same horizontal level, the spiral plate at the front position rotates to drive the material away from the transmission belt, while the spiral plate at the rear position rotates to drive the material closer to the transmission belt.
[0011] Preferably, the rack at the front position has a first notch near the feed nozzle; the rack at the rear position has a second notch near the discharge nozzle; the first notch and the second notch are located on the front side of the rack.
[0012] Preferably, a vibrator is fixedly connected to the bottom of the support; the material in the feed nozzle moves toward the rotary cavity under the action of vibration.
[0013] Preferably, the outer wall of the transmission belt is provided with a corrugated groove corresponding to the partition along the transmission direction; a corrugated block fixed to the partition is slidably connected in the corrugated groove; the front and rear inner walls of the rotary cavity are corrugated along the transmission direction; the corrugated surfaces of the front and rear inner walls of the rotary cavity have the same corrugation direction at the same transmission position; the corrugation directions of adjacent partitions are opposite.
[0014] Preferably, the front surface of the hopper is uniformly provided with exhaust holes; an air pump is fixedly connected to the rear side of the rear shell; the air pump is connected to the rear inner wall of the rotary chamber through an air inlet pipe.
[0015] A method for mixing PA66 composite material raw materials, applicable to the aforementioned PA66 composite material raw material mixing device, comprising the following steps: S1: First, turn the bolt in the opposite direction to move the locking plate away from the feed plate. Then, control multiple feed plates to adjust in the front and back direction inside the feed nozzle. Then, turn the bolt in the forward direction to move the locking plate closer to the feed plate. Multiple feed plates are locked inside the feed nozzle. S2: Control the motor to drive the connected rotating rollers to rotate. The rotating rollers will drive the transmission belt to rotate around the two rotating rollers. The transmission belt will drive multiple partitions to move in the rotating cavity inside the hopper. When the multiple partitions pass the feed nozzle, they will push the proportioned material into the corresponding stirring cavity. S3: After the proportioned materials enter the stirring chamber, multiple stirring chambers will rotate around the rotary chamber as the transmission belt drives them, and the stirring components in the stirring chamber will stir synchronously to achieve material mixing in the stirring chamber; S4: After the agitation chamber reaches the discharge nozzle, the material in the agitation chamber will be discharged along the discharge nozzle. The agitation chamber under no-load conditions will pass through the feed nozzle again, and so on.
[0016] The beneficial effects of this invention are as follows: 1. In this invention, the newly added proportioned materials entering the silo are separated into independent stirring chambers by partitions, so that the new and old materials will not mix. This avoids the situation where the new and old materials come into contact with each other and affect the proportion, thus ensuring the mixing ratio of raw materials and improving the mixing efficiency of raw materials.
[0017] 2. In this invention, because the rack at the rear position is provided with a second notch near the discharge nozzle, the gear corresponding to the infeed spiral plate cannot drive the infeed spiral plate to rotate after entering the second notch. Therefore, when the discharge nozzle is in position, the infeed spiral plate cannot rotate, while the discharge spiral plate rotates smoothly. During the rotation of the discharge spiral plate, the material in the stirring chamber will be smoothly discharged along the discharge nozzle under the combined action of gravity and spiral transmission force.
[0018] 3. In the transmission direction of the transmission belt, the front and back oscillation directions of two adjacent partitions are opposite. Therefore, when the two adjacent partitions oscillate in opposite directions, the material in the agitation chamber will be rubbed back and forth, thereby loosening the material and preventing the material from clumping together. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Figure 1 This is a perspective view of the mixing device of the present invention; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is a rear perspective view of the mixing device of the present invention; Figure 4 This is a perspective view of the feed nozzle in this invention; Figure 5 This is a perspective view of the transmission belt and partition in this invention; Figure 6 yes Figure 5 Enlarged view of point B in the middle; Figure 7 This is a perspective view of the rack in this invention; Figure 8 These are structural diagrams of the upper and lower positions of the rack in this invention; Figure 9 This is a cross-sectional view of the mixing device of the present invention; Figure 10 This is a perspective view of half of the silo in this invention; Figure 11 This is a flowchart of the method in this invention.
[0021] In the diagram: 1. Hopper 10. Vent 10. Support 11. Vibrator 111. Roller 12. Annular groove 121. Rotary cavity 13. Discharge nozzle 14. Feed nozzle 15. Feed plate 16. Feed rod 17. Locking groove 18. Rack 19. Gear seat 191. First notch 192. Second notch 193. Rear shell 2. Motor 21. Air pump 22. Air inlet pipe 23. Transmission belt 3. Partition 31. Wave groove 32. Wave block 33. Agitator 4. Rotating rod 41. Spiral plate 42. Gear 43. Locking plate 5. Bolt 51. Locking bar 52. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.
[0023] like Figures 1 to 11 As shown, the present invention includes the following embodiments: Example 1: A PA66 composite material raw material mixing device includes a vertically rotating hopper 1 and a support 11 supporting the lower part of the hopper 1; a rear shell 2 is fixedly connected to the rear side of the hopper 1; two rotating rollers 12 extending into the inner side of the hopper 1 are rotatably connected to the front side of the rear shell 2; the two rotating rollers 12 are driven by a transmission belt 3; the transmission belt 3 blocks and seals the inner groove of the hopper 1; partitions 31 are evenly connected to the outer wall of the transmission belt 3 along the transmission direction; the partitions 31 are movably and sealed to the rotating cavity 13 inside the hopper 1; one of the rotating rollers 12 is fixedly connected to a motor 21 facing rearward; the outer shell of the motor 21 is fixedly connected to the rear shell 2; a discharge nozzle 14 communicating with the rotating cavity 13 is provided at the bottom of the hopper 1 facing downward; a feed nozzle 15 communicating with the rotating cavity 13 is provided on the side of the hopper 1 facing upward; multiple feed plates 16 are distributed in the front-back direction inside the feed nozzle 15; an agitator 4 is provided between two adjacent partitions 31.
[0024] In this embodiment, the front and rear sections of the feed nozzle 15 are the same; the feed rod 17 is fixedly connected to the inner sides of the front and rear of the feed nozzle 15; the feed plate 16 is slidably and sealingly connected to the outer wall of the feed rod 17; the feed plate 16 is slidably and sealingly connected to the inner wall of the feed nozzle 15.
[0025] In this embodiment, the upper inner wall of the feed nozzle 15 is provided with a locking groove 18 that covers the front and rear sliding range of the feed plate 16; a locking plate 5 is slidably connected in the locking groove 18; a bolt 51 that is threadedly connected to the feed nozzle 15 is rotatably connected to the outer side of the locking plate 5; and multiple locking bars 52 are fixedly connected to the inner side of the locking plate 5 along the front and rear direction.
[0026] Before mixing the raw materials using the raw material mixing device, the front-to-back positions of the multiple feed plates 16 inside the feed nozzle 15 are adjusted. Specifically, the outer wall of the bolt 51 is turned in the opposite direction. During the outward movement of the bolt 51, the locking plate 5 moves outward along the locking groove 18, causing the locking plate 5 to move the locking bar 52 away from the feed plates 16. The thickness of the feed plate 16 is adapted to the spacing between two adjacent locking bars 52. After the locking bar 52 moves away from the multiple feed plates 16 along with the feed plates 16, the feed plates 16 are unlocked in the front-to-back direction. In this way, the multiple feed plates 16 slide axially along the feed rod 17 inside the feed nozzle 15. The multiple feed plates 16 can divide the inside of the feed nozzle 15 into multiple feed chambers, and the multiple feed chambers hold... Materials of different components continue to enter. Each feed chamber corresponds to a component of PA66 composite material raw material, and the proportion of multiple feed chambers is the same as the proportion of components of PA66 composite material raw material. Therefore, when multiple feed chambers are filled with materials, all proportions of raw materials can enter the rotary chamber 13 along their respective feed chambers, so as to continuously feed according to the proportion of each component of the raw material. After the front and rear orientation adjustment of multiple feed plates 16 is completed, the bolt 51 is turned forward to drive the locking plate 5 to approach the feed plate 16 along the locking groove 18. The locking plate 5 will use the locking bar 52 to press and lock the feed plate 16, so that the position of the feed plate 16 in the axial direction of the feed bar 17 is locked. During the feeding process at the feed nozzle 15, the motor 21 drives the connected rotating roller 12 to rotate. The rotating roller 12, in turn, drives the transmission belt 3. The transmission belt 3 has teeth at its contact point with the rotating roller 12 to prevent slippage. During transmission, the transmission belt 3 moves multiple partitions 31 on the outer wall. These partitions 31 can move along the rotating cavity 13. When the partitions 31 pass through the position where the rotating cavity 13 connects to the feed nozzle 15, they scrape away the material entering the rotating cavity 13 from the feed nozzle 15. The proportioned material flowing from the feed nozzle 15 into the rotating cavity 13 enters between two adjacent partitions 31. The two adjacent partitions 31, after being offset from the feed nozzle 15, seal the cavity, confining the material between them. The two partitions 31 form a stirring chamber, which moves along with the transmission belt 3. The stirring chamber first moves upward and to the top of the hopper 1, then moves downward. During the movement of the stirring chamber, the stirring element 4 stirs the material inside the stirring chamber to achieve material mixing. Until the stirring chamber moves to the bottom of the hopper 1 and aligns with the discharge nozzle 14, the well-stirred material in the stirring chamber will flow out along the discharge nozzle 14, achieving uniform material discharge. Since the feeding, mixing and discharging of the material are carried out separately, the feeding nozzle 15 will continuously feed the material, the rotating chamber 13 in the hopper 1 will continuously mix the material, and the discharge nozzle 14 will continuously discharge the material, making the entire raw material mixing process continuous. Furthermore, since the newly added proportioned material entering the hopper 1 is separated into an independent stirring chamber by the partition 31, the new and old materials will not mix, avoiding the situation where the new and old materials come into contact and affect the proportion. This ensures the raw material mixing proportion while improving the raw material mixing efficiency.
[0027] Example 2: The inner side of the hopper 1 is provided with a rotary rack 19; there are two racks 19; the outer wall of the roller 12 is provided with an annular groove 121 for the racks 19 to pass around and avoid; the two racks 19 are fixedly connected to the rear shell 2 through a tooth seat 191; the agitator 4 is composed of a rotating rod 41 and a spiral plate 42; the spiral plate 42 is fixedly connected to the rotating rod 41; the rotating rod 41 passes through the transmission belt 3 and is rotatably and sealingly connected to the transmission belt 3; the end of the rotating rod 41 away from the spiral plate 42 is fixedly connected to a gear 43 that meshes with the rack 19; the gear 43 can pass through the annular groove 121.
[0028] In this embodiment, the spiral directions of the two spiral plates 42 are opposite; at the same horizontal level, the spiral plate 42 at the front position rotates to drive the material away from the transmission belt 3, and the spiral plate 42 at the rear position rotates to drive the material closer to the transmission belt 3.
[0029] During the transmission process of the transmission belt 3, the transmission belt 3 will drive the rotating rod 41 synchronously. One end of the rotating rod 41 is fixed to the gear 43 and will mesh with the rack 19. The rack 19 is rotary, so under the transmission of the rack 19 and the gear 43, the rotating rod 41 will rotate. During the rotation of the rotating rod 41, it will drive the spiral plate 42 to rotate. The spiral directions of the two spiral plates 42 are opposite, and the teeth of the two racks 19 are both forward. During the meshing transmission of the two gears 43 and the corresponding racks 19, both rotating rods 41 will rotate. The rotation of one spiral plate 42 will stir the material away from the conveyor belt, and the rotation of the other spiral plate 42 will stir the material closer to the conveyor belt. In this way, the material is circulated and stirred, improving the mixing effect of the material in the stirring chamber.
[0030] Example 3: A first notch 192 is provided on the rack 19 at the front position near the feed nozzle 15; a second notch 193 is provided on the rack 19 at the rear position near the discharge nozzle 14; the first notch 192 and the second notch 193 are provided on the front side of the rack 19.
[0031] Because the spiral plate 42 meshed with the rack 19 at the front position can drive the material away from the transmission belt 3, for ease of description, we will call this spiral plate 42 the outlet spiral plate 42. Because the spiral plate 42 meshed with the rack 19 at the rear position can drive the material closer to the transmission belt 3, for ease of description, we will call this spiral plate 42 the inlet spiral plate 42. Because the rack 19 at the front position has a first notch 192 near the feed nozzle 15, the gear 43 corresponding to the outlet spiral plate 42 cannot drive the outlet spiral plate 42 to rotate after entering the first notch 192. Therefore, in the position of the feed nozzle 15, the outlet spiral plate 42 cannot rotate, and the inlet spiral plate 42 will rotate smoothly. During the rotation of the inlet spiral plate 42, the material in the feed nozzle 15 will smoothly enter the rotary cavity 13 under the combined action of gravity and spiral transmission force, ensuring smooth feeding. In order to reduce the feeding error of each component material in the feed nozzle 15, the feed... The feed nozzle 15 is positioned near the feed spiral plate 42. Because the rack 19, located at the rear, has a second notch 193 near the discharge nozzle 14, the gear 43 corresponding to the feed spiral plate 42 cannot rotate after entering the second notch 193. Therefore, at the discharge nozzle 14 position, the feed spiral plate 42 cannot rotate, while the discharge spiral plate 42 rotates smoothly. During the rotation of the discharge spiral plate 42, the material in the agitation chamber is smoothly discharged along the discharge nozzle 14 under the combined action of gravity and spiral transmission force. Furthermore, because the discharge nozzle 14 is located at the lower end of the hopper 1 in an arc-shaped position, the two adjacent baffles 31 near the discharge nozzle 14 expand to enlarge the agitation chamber, making it easier for the material in the agitation chamber to be discharged. The baffles 31 in the rotating chamber 13 are in a movable seal, a relative seal, not an absolute seal, ensuring a certain gap while separating and agitating the material in the two adjacent agitation chambers.
[0032] Example 4: The bottom of the support 11 is fixedly connected to the vibrator 111; the material in the feed nozzle 15 moves towards the rotary cavity 13 under the action of vibration.
[0033] Under the vibration of the vibrator 111, the material in the feed chamber is vibrated and converges towards the rotary chamber 13, making the material in the feed chamber more compact and preventing gaps in the material in the feed chamber, thereby further improving the proportion accuracy of each component of the material; while the material inside the discharge nozzle 14 and the material in the stirring chamber connected to the discharge nozzle 14 are discharged more thoroughly under the vibration.
[0034] Example 5: The outer wall of the transmission belt 3 is provided with a corrugated groove 32 corresponding to the partition 31 along the transmission direction; a corrugated block 33 fixed to the partition 31 is slidably connected in the corrugated groove 32; the front and rear inner walls of the rotary cavity 13 are corrugated along the transmission direction; the corrugated surfaces of the front and rear inner walls of the rotary cavity 13 have the same corrugation direction at the same transmission position; the corrugation directions of adjacent partitions 31 are opposite.
[0035] During the transmission process of the transmission belt 3, multiple undulating grooves 32 on the outer wall are driven synchronously. These grooves 32, along with the transmission belt 3, drive the undulating blocks 33 and partitions 31 to move. The front-to-back width of the rotating cavity 13 in the transmission direction is adapted to the partitions 31. The rotating cavity 13 has corrugated surfaces on its front and back inner walls, with the two corrugated surfaces maintaining the same corrugation direction in the transmission direction. Thus, the partitions 31, during the transmission process of the transmission belt 3, are subjected to back-and-forth undulations by the two corrugated surfaces. The partitions 31 drive the undulating blocks 33 to slide along the undulating grooves 32. When the partitions 31 come into contact with the material, they cause the material to undulate back and forth, spreading it out and preventing accumulation, thus improving the mixing effect. In the transmission direction of the transmission belt 3, the back-and-forth undulation directions of adjacent partitions 31 are opposite. Therefore, when adjacent partitions 31 undulate in opposite directions, the material in the agitation chamber is rubbed back and forth. This allows the material to be loosened through rubbing, preventing clumping and agglomeration. Additionally, hard protrusions on both sides of the partition 31 increase the friction between the partition 31 and the material, enhancing the rubbing effect. It's worth noting that the agitation chamber contains a sufficient amount of material to ensure proper rubbing. Even if the chamber isn't completely full, the rotation of the spiral plate 42 causes material to be thrown into the gap between the spiral plate 42 and the partition 31, still achieving a rubbing effect. The transmission belt 3 is made of a rigid material and consists of multiple hinged transmission plates forming a ring. The transmission belt 3 seals the inner groove of the hopper 1, preventing material leakage. At the feed nozzle 15, the back-and-forth movement of the partition 31 ensures a more uniform distribution of material in the front-to-back direction. At the discharge nozzle 14, the back-and-forth movement of the partition 31 improves the material discharge effect from the agitation chamber.
[0036] Example 6: The front surface of the hopper 1 is uniformly provided with exhaust holes 10; the rear side of the rear shell 2 is fixedly connected to the air pump 22; the air pump 22 is connected to the rear inner wall of the rotary cavity 13 through the air inlet pipe 23.
[0037] The air pump 22 discharges heated gas into the hopper 1 through the air inlet pipe 23, thereby drying the material in the rotary chamber 13. The dried water vapor is discharged through the exhaust port 10. Since the water vapor in the material will affect the subsequent melting effect, hot air can be used to dry the water vapor in the material to reduce the moisture content of the material. For the dried material, dry cold air can be injected to impact the material and achieve full mixing. This embodiment integrates drying and mixing. More importantly, the multiple baffles 31 in this embodiment separate the material, allowing the material to be dried in a dispersed manner, which improves the drying effect. Compared with the existing centralized drying, it avoids secondary contact between water vapor and material, which affects the drying effect.
[0038] Example 7: A method for mixing PA66 composite material raw materials, applicable to the above-mentioned PA66 composite material raw material mixing device, the steps of which are as follows: S1: First, turn the bolt 51 in the reverse direction to move the locking plate 5 away from the feed plate 16. Then, control the multiple feed plates 16 to adjust the front and back directions inside the feed nozzle 15. Then, turn the bolt 51 in the forward direction to move the locking plate 5 closer to the feed plate 16. The multiple feed plates 16 are locked inside the feed nozzle 15. S2: Control motor 21 drives connected rotating roller 12 to rotate. The rotating roller 12 will drive transmission belt 3 to rotate around the two rotating rollers 12. The transmission belt 3 will drive multiple partitions 31 to move in the rotating cavity 13 inside the hopper 1. When the multiple partitions 31 pass the feed nozzle 15, they will push the proportioned material into the corresponding stirring cavity. S3: After the proportioned material enters the stirring chamber, multiple stirring chambers will rotate around the rotary chamber 13 as the transmission belt 3 drives them. The stirring element 4 in the stirring chamber will stir synchronously to achieve material mixing in the stirring chamber. S4: After the agitation chamber reaches the discharge nozzle 14, the material in the agitation chamber will be discharged along the discharge nozzle 14. The agitation chamber under no-load conditions will pass through the feed nozzle 15 again, and so on.
[0039] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing the present invention and simplifying the description only, and are not intended to 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 limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be construed as indicating or implying relative importance.
[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. A PA66 composite material raw material mixing device, characterized in that: The device includes a vertically rotating hopper and a support frame at the bottom of the hopper; a rear shell is fixedly connected to the rear side of the hopper; two rotating rollers extending into the inner side of the hopper are rotatably connected to the front side of the rear shell; the two rotating rollers are driven by a transmission belt; the transmission belt seals the inner groove of the hopper; partitions are evenly connected to the outer wall of the transmission belt along the transmission direction; the partitions are movably and sealingly connected to the rotating cavity inside the hopper; one of the rotating rollers is fixedly connected to a motor facing rearward; the motor housing is fixedly connected to the rear shell; a discharge nozzle communicating with the rotating cavity is provided at the bottom of the hopper facing downward; a feed nozzle communicating with the rotating cavity is provided on the side of the hopper facing upward; multiple feed plates are distributed in the front-to-back direction inside the feed nozzle; an agitator is provided between two adjacent partitions.
2. The PA66 composite material raw material mixing device according to claim 1, characterized in that: The front and rear sections of the feed nozzle are the same; the feed rod is fixedly connected to the inner sides of the front and rear of the feed nozzle; the feed plate is slidably and sealingly connected to the outer wall of the feed rod; the feed plate is slidably and sealingly connected to the inner wall of the feed nozzle.
3. The PA66 composite material raw material mixing device according to claim 2, characterized in that: The feed nozzle has a locking groove on its upper inner wall that covers the front-to-back sliding range of the feed plate; a locking plate is slidably connected in the locking groove; a bolt threaded to the feed nozzle is rotatably connected to the outer side of the locking plate; and multiple locking bars are fixedly connected to the inner side of the locking plate along the front-to-back direction.
4. The PA66 composite material raw material mixing device according to claim 1, characterized in that: The inner side of the hopper is provided with a rotary rack; there are two racks; the outer wall of the rotating roller is provided with an annular groove for the racks to bypass and avoid; the two racks are fixedly connected to the rear shell through a tooth seat; the agitator is composed of a rotating rod and a spiral plate; the spiral plate is fixedly connected to the rotating rod; the rotating rod passes through the transmission belt and is rotatably and sealingly connected to the transmission belt; the end of the rotating rod away from the spiral plate is fixedly connected to a gear that meshes with the rack; the gear can pass through the annular groove.
5. The PA66 composite material raw material mixing device according to claim 4, characterized in that: The spiral plates at the front and rear have opposite spiral directions; at the same horizontal level, the spiral plate at the front position rotates, causing the material to move away from the transmission belt, while the spiral plate at the rear position rotates, causing the material to move closer to the transmission belt.
6. The PA66 composite material raw material mixing device according to claim 5, characterized in that: The rack at the front position has a first notch near the feed nozzle; the rack at the rear position has a second notch near the discharge nozzle; the first and second notches are located on the front side of the rack.
7. The PA66 composite material raw material mixing device according to claim 1, characterized in that: The vibrator is fixed to the bottom of the support; the material in the feed nozzle moves toward the rotary cavity under the action of vibration.
8. The PA66 composite material raw material mixing device according to claim 1, characterized in that: The outer wall of the transmission belt is provided with a corrugated groove corresponding to the partition along the transmission direction; a corrugated block fixed to the partition is slidably connected in the corrugated groove; the front and rear inner walls of the rotary cavity are corrugated along the transmission direction; the corrugated surfaces of the front and rear inner walls of the rotary cavity have the same corrugation direction at the same transmission position; the corrugation directions of adjacent partitions are opposite.
9. A PA66 composite material raw material mixing device according to claim 1, characterized in that: The front surface of the hopper is uniformly provided with exhaust holes; an air pump is fixedly connected to the rear side of the rear shell; the air pump is connected to the rear inner wall of the rotating cavity through an air inlet pipe.
10. A method for mixing PA66 composite material raw materials, the method being applicable to the PA66 composite material raw material mixing apparatus according to any one of claims 1-9, characterized in that: The steps of this method are as follows: S1: First, turn the bolt in the opposite direction to move the locking plate away from the feed plate. Then, control multiple feed plates to adjust in the front and back direction inside the feed nozzle. Then, turn the bolt in the forward direction to move the locking plate closer to the feed plate. Multiple feed plates are locked inside the feed nozzle. S2: Control the motor to drive the connected rotating rollers to rotate. The rotating rollers will drive the transmission belt to rotate around the two rotating rollers. The transmission belt will drive multiple partitions to move in the rotating cavity inside the hopper. When the multiple partitions pass the feed nozzle, they will push the proportioned material into the corresponding stirring cavity. S3: After the proportioned materials enter the stirring chamber, multiple stirring chambers will rotate around the rotary chamber as the transmission belt drives them, and the stirring components in the stirring chamber will stir synchronously to achieve material mixing in the stirring chamber; S4: After the agitation chamber reaches the discharge nozzle, the material in the agitation chamber will be discharged along the discharge nozzle. The agitation chamber under no-load conditions will pass through the feed nozzle again, and so on.