A bottle flake raw material pretreatment mixing device with uniform mixing structure

Abstract

The application discloses a bottle piece raw material pretreatment mixing device with uniform mixing structure, which comprises a fixing frame, a plurality of feeding bins are arranged on the bottom surface of the fixing frame, a connecting baffle is fixedly and penetratingly connected to the bottom of the feeding bin, a discharging bin is fixedly connected to the other end of the connecting baffle, a mixing bin is arranged directly below the output end of the discharging bin, a gas pressure assembly is arranged at one end of the mixing bin, a premixing box is fixedly and penetratingly connected to the end of the mixing bin away from the gas pressure assembly, a plurality of flow sensors are arranged in the connecting baffle, a plurality of gas pressure pushing assemblies are fixedly installed in the discharging bin, a plurality of distance sensors are fixedly installed on the upper wall of the discharging bin, a plurality of flow limiting assemblies are rotatably installed at the bottom of the discharging bin, the flow sensors are electrically connected with the gas pressure pushing assemblies, and the flow limiting assemblies are fixedly installed at the output end of the gas pressure pushing assemblies. Therefore, the device can adjust the bottle piece flow size during use, thereby improving the work efficiency.

Description

Technical Field

[0001] This invention relates to the field of bottle flake mixing technology, specifically to a bottle flake raw material pretreatment mixing device with a uniform mixing structure. Background Technology

[0002] Polyester bottle flakes are 4*5*2 mm sheet-like granules obtained by polymerizing polyester as a raw material. The scientific name for polyester bottle flakes is polyethylene terephthalate (PET), which is produced by transesterification of dimethyl terephthalate with ethylene glycol or by esterification of terephthalic acid with ethylene glycol to synthesize diethyl terephthalate, followed by polycondensation. Polyester bottle flakes are widely used in the production of fibers, packaging materials, films, engineering plastics, and PET plastic sheets.

[0003] Currently, the production of bottle flakes first requires mixing the flakes, which necessitates the use of a bottle flake mixing device. However, this mixing device premixes different types of bottle flakes in different proportions, requiring electronic scales to weigh each type of bottle flake sequentially. After weighing, the bottle flakes are then uniformly placed into the mixing hopper. However, each weighing requires a certain interval, which prevents continuous feeding. Furthermore, premixing bottle flakes in equal quantities using electronic scales poses certain risks. If the electronic scale malfunctions and fails to transmit electricity to the opening, even if the bottle flakes reach the preset value, they will not fall out for premixing. If the lack of a certain type of bottle flake is not detected in time, it can lead to significant economic losses. Summary of the Invention

[0004] The purpose of this invention is to provide a pretreatment mixing device for bottle flake raw materials with a uniform mixing structure, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a pretreatment mixing device for bottle flake raw materials with a uniform mixing structure, comprising a fixed frame, a plurality of feeding hoppers on the base surface of the fixed frame, a connecting baffle fixedly and through the bottom of the feeding hopper, a discharging hopper fixedly and through the other end of the connecting baffle, a mixing hopper located directly below the output end of the discharging hopper, a pneumatic component at one end of the mixing hopper, a premixing box fixedly and through the end of the mixing hopper away from the pneumatic component, a plurality of flow sensors inside the connecting baffle, a plurality of pneumatic actuating components fixedly installed inside the discharging hopper, a plurality of distance sensors fixedly installed on the upper wall of the discharging hopper, a plurality of flow limiting components rotatably installed at the bottom of the discharging hopper, the flow sensors being electrically connected to the pneumatic actuating components, and a flow limiting component fixedly installed at the output end of the pneumatic actuating components.

[0006] Furthermore, the pneumatic assembly is connected to a pneumatic push assembly, which includes a first fixed plate, a second fixed plate, a pneumatic sleeve, and a pneumatic push rod. The first fixed plate is fixedly connected to the inner wall of the feeding hopper. The other side of the first fixed plate is hinged to a fixed end of the pneumatic sleeve. The pneumatic sleeve is drivenly connected to the pneumatic push rod. The other end of the pneumatic push rod is hinged to a second fixed plate. The other end face of the second fixed plate is fixedly connected to the flow limiting assembly.

[0007] Furthermore, the flow limiting component includes a first transmission rod and a limiting baffle. The first transmission rod is located at both ends of the bottom of the feeding hopper. Multiple sets of the first transmission rods are fitted with limiting baffles on their adjacent sides. The output end of the pneumatic push component is fixedly installed on the adjacent ends of the limiting baffles. The side of the limiting baffle close to the distance sensor is provided with a reference strip.

[0008] Furthermore, the flow sensor and the distance sensor are electrically connected to a pressure component, and the reference point of the distance sensor output is a reference bar, with multiple sets of the distance sensor outputs located in the middle of the reference bar.

[0009] Furthermore, fixed blocks are fixedly installed on both ends of the outer surface of the feeding hopper, a first connecting rod is fixedly installed between the fixed blocks, a second connecting rod is fixedly installed between the fixed blocks and the fixed frame, a third connecting rod is fixedly installed in the middle of the base surface of the first connecting rod, and the other end of the third connecting rod is fixedly connected to the fixed frame.

[0010] Furthermore, the pneumatic assembly includes a pressure tank and an electric valve. The electric valve is connected through the base surface of the pressure tank, and a pressure supply pipe is connected through the other end of the electric valve. A pressure sleeve is connected through the other end of the pressure supply pipe.

[0011] Furthermore, the mixing hopper is equipped with an inclined platform inside. One end of the inclined platform near the pressure tank is fixedly connected to the upper end of the mixing hopper, and the other end of the inclined platform is fixedly connected to one end of the premix box inlet.

[0012] Furthermore, the mixing chamber is equipped with multiple sets of first heating tubes, which are located between the inner wall of the mixing chamber shell and the inner wall of the mixing chamber inclined platform.

[0013] Furthermore, the premixing box has a discharge port at the end away from the mixing hopper. A servo motor is fixedly installed on the base surface of the premixing box. The output end of the servo motor is connected to a second transmission rod through the top surface of the premixing hopper. The second transmission rod is connected to a third transmission rod. A feeding roller is fixedly installed at the end of the third transmission rod away from the mixing hopper. Multiple sets of feeding baffles are fixedly installed on the circumference of the feeding roller. The feeding baffles are equidistantly installed on the outer circumference of the feeding roller. The other end of the feeding roller is driven to the end of the mixing hopper near the discharge port.

[0014] Furthermore, the premixing chamber is equipped with multiple sets of second heating tubes, which are located between the inner wall of the premixing chamber shell and the outer wall of the inner liner. The second heating tubes are installed at equal intervals between the inner wall of the premixing chamber shell and the inner liner of the premixing chamber.

[0015] Compared with the prior art, the beneficial effects achieved by this invention are as follows: In use, the operator first needs to adjust the parameters of the flow sensor. Then, the operator needs to place different types of cleaned bottle flakes into different feeding hoppers. The bottle flakes are then passed into the feeding hopper by the limiting baffle. During use, the flow sensor transmits an electrical signal to the controller, which controls the opening and closing of the electric valve, thereby controlling the pneumatic push assembly to push the limiting baffle and change the flow rate. The distance sensor then feeds back data to the controller based on the reference point, and the flow sensor detects this data to determine whether to adjust the flow rate again. Specifically, the controller causes the electric valve to inject gas into the pneumatic sleeve, thereby pushing the limiting baffle and adjusting the angle between the limiting baffles to control the flow rate. Bottle flakes falling from the feeding hopper then fall into the mixing hopper at the bottom. The device features an internal inclined platform. Bottle flakes slide down the platform into the premixing chamber due to the platform's slope. During this slide, the first heating element at the bottom of the inclined platform preheats the flakes. The spacing between the first heating elements near the pressure tank is wider, while the spacing near the premixing chamber is closer, ensuring thorough preheating as the flakes slide into the chamber. Inside the premixing chamber, the flakes are completely melted by the second heating element. A servo motor then drives a second transmission rod, which in turn drives a third transmission rod, which in turn drives the feeding rollers and their corresponding feeding baffles. The melted flakes are then carried by the feeding baffles to the premixing chamber's outlet, thus transferring them to the next process. This device allows for adjustable flake flow rates to suit different types and quantities, resulting in higher efficiency. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic cross-sectional view of the overall structure of the present invention;

[0019] Figure 2This is a schematic cross-sectional view of the connection structure of the feeding hopper, connecting baffle and discharging hopper of the present invention;

[0020] Figure 3 This is a cross-sectional view of the material feeding hopper of the present invention;

[0021] Figure 4 This is a top view of the feeding hopper structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the transmission structure of the second and third transmission rods of the present invention;

[0023] Figure 6 This is an enlarged structural schematic diagram of Figure A of the present invention;

[0024] In the diagram: 1. Fixed frame; 2. Feeding hopper; 3. Connecting baffle; 4. Discharging hopper; 5. Mixing hopper; 6. Premixing box; 7. Flow sensor; 8. Distance sensor; 9. First fixed plate; 10. Second fixed plate; 11. Pneumatic sleeve; 12. Pneumatic push rod; 13. First transmission rod; 14. Limiting baffle; 15. Fixed block; 16. First connecting rod; 17. Second connecting rod; 18. Third connecting rod; 19. Pressure tank; 20. Electric valve; 21. Pneumatic supply pipe; 22. Inclined platform; 23. First heating tube; 24. Discharge port; 25. Servo motor; 26. Second transmission rod; 27. Third transmission rod; 28. Feeding roller; 29. ​​Feeding baffle; 30. Second heating tube; 31. Reference strip. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and 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.

[0026] This invention provides a technical solution: a pretreatment mixing device for bottle flake raw materials with a uniform mixing structure, comprising a fixed frame 1, a plurality of feeding hoppers 2 on the upper base surface of the fixed frame 1, a connecting baffle 3 fixedly and through the bottom of the feeding hopper 2, a discharging hopper 4 fixedly and through the other end of the connecting baffle 3, a mixing hopper 5 located directly below the output end of the discharging hopper 4, a pneumatic component at one end of the mixing hopper 5, a premixing tank 6 fixedly and through the end of the mixing hopper 5 away from the pneumatic component, a plurality of flow sensors 7 inside the connecting baffle 3, a plurality of pneumatic pushing components fixedly installed inside the discharging hopper 4, a plurality of distance sensors 8 fixedly installed on the upper wall of the discharging hopper 4, and a plurality of flow limiting components rotatably installed at the bottom of the discharging hopper 4. The flow sensor 7 is electrically connected to a pneumatic actuation component. A flow limiting component is fixedly installed at the output end of the pneumatic actuation component. First, the operator needs to adjust the parameters of the flow sensor 7. Then, the operator needs to place different types of cleaned bottle flakes into different feeding hoppers 2. The bottle flakes are then passed into the feeding hopper 4 by the limiting baffle. During use, the flow sensor 7 transmits an electrical signal to the controller, which controls the opening and closing of the electric valve 20, thereby controlling the pneumatic actuation component to push the limiting baffle 14 to change the flow rate. Afterwards, the distance sensor 8 feeds back the data to the controller based on the reference point, and then the flow sensor 7 detects the data. This determines whether to adjust the flow rate again. In actual use, the controller will cause the electric valve 20 to inject gas into the pneumatic sleeve 11, thereby pushing the limit baffle 14 and adjusting the angle between the limit baffles 14 to control the flow rate. Afterwards, the bottle flakes falling from the feeding hopper 4 will fall onto the mixing hopper 5 at the bottom, specifically onto the base surface of the inclined platform 22 inside the mixing hopper 5. The bottle flakes will then slide down the slope of the inclined platform 22 into the premixing tank 6. During the sliding process, the first heating tube 23 at the bottom of the inclined platform 22 will preheat the bottle flakes. At the same time, the spacing of the first heating tube 23 near the pressure tank 19 is relatively wide, while the spacing of the first heating tube 23 near the premixing tank 6 is relatively wide. The spacing between the components is relatively tight, allowing the bottle flakes to be fully preheated when they slide into the premixing tank 6. The bottle flakes entering the premixing tank 6 are then completely melted by the second heating tube 30. Afterward, the servo motor 25 drives the second transmission rod 26, which in turn drives the third transmission rod 27, thereby driving the feeding roller 28 and the feeding baffle 29 on the feeding roller 28. The melted bottle flakes are then carried by the feeding baffle 29 to the outlet 24 of the premixing tank 6, thus transferring the melted bottle flakes to the next process. This device can adjust the bottle flake flow rate according to the required amount for different types of products, making the device more efficient in use.

[0027] In this embodiment, specifically, a pneumatic component is connected to a pneumatic push component. The pneumatic push component includes a first fixed plate 9, a second fixed plate 10, a pneumatic sleeve 11, and a pneumatic push rod 12. The first fixed plate 9 is fixedly connected to the inner wall of the feeding bin 4. The other side of the first fixed plate 9 is hinged to the fixed end of the pneumatic sleeve 11. The pneumatic sleeve 11 is drivenly connected to the pneumatic push rod 12. The other end of the pneumatic push rod 12 is hinged to the second fixed plate 10. The other end of the second fixed plate 10 is fixedly connected to the flow limiting component. When the device is in use, the pneumatic component provides a power source to the pneumatic push component. The first fixed plate 9 can fix the fixed end of the pneumatic push component, and the second fixed plate 10 can fix the output end of the pneumatic push component. The first fixed plate 9 is fixedly connected to the inner wall of the feeding bin, and the second fixed plate 10 is fixed to the flow limiting component. Therefore, when in use, the pneumatic push rod 12 pushes the second fixed plate 10, thereby pushing the flow limiting component, thus creating an opening for feeding in the flow limiting component.

[0028] In this embodiment, specifically, the flow limiting component includes a first transmission rod 13 and a limiting baffle 14. The first transmission rod 13 is located at both ends of the bottom of the feeding hopper 4. Multiple sets of the first transmission rod 13 are fitted with the limiting baffle 14 on their adjacent sides. The output end of the pneumatic push component is fixedly installed on the limiting baffle 14 at their adjacent ends. The limiting baffle 14 is provided with a reference strip 31 on its side near the distance sensor 8. The flow limiting component is composed of the first transmission rod 13 and the limiting baffle 14. The limiting baffle 14 is fitted on the outside of the first transmission rod 13, so that the limiting baffle 14 can rotate under the position limitation of the first transmission rod 13. The reference strip 31 is used to provide a reference point for the distance sensor 8.

[0029] In this embodiment, specifically, the flow sensor 7 and the distance sensor 8 are electrically connected to a pneumatic component. The output point of the distance sensor 8 is the reference bar 31. Multiple sets of the distance sensor 8 outputs are located in the middle of the reference bar 31. During use, the flow sensor 7 transmits an electrical signal to the controller, which controls the opening and closing of the electric valve 20, thereby controlling the pneumatic push component to push the limit baffle 14 to change the flow rate. Afterwards, the distance sensor 8 feeds back the data to the controller according to the reference point. Then, the flow sensor 7 detects the data to determine whether to adjust the flow rate again. The distance sensor 8 reports parameters based on the change between the reference bar 31 and its own fixed position, thereby determining whether the opening arc of the limit baffle 14 can control the change of flow rate.

[0030] In this embodiment, specifically, fixing blocks 15 are fixedly installed on both outer end faces of the feeding hopper 4, a first connecting rod 16 is fixedly installed between the fixing blocks 15, a second connecting rod 17 is fixedly installed between the fixing blocks 15 and the fixing frame 1, and a third connecting rod 18 is fixedly installed in the middle of the upper base surface of the first connecting rod 16. The other end of the third connecting rod 18 is fixedly connected to the fixing frame 1. The fixing blocks 15 at both ends of the feeding hopper 4 can provide connection, while the first connecting rod 16 between the fixing blocks 15 can improve the stability between the feeding hopper 4, the second connecting rod 17 can strengthen the stability between the feeding hopper and the fixing frame 1, and the third connecting rod 18 can provide stability between the first connecting rod 16 and the fixing frame 1.

[0031] In this embodiment, the pneumatic assembly specifically includes a pressure tank 19 and an electric valve 20. The electric valve 20 is connected to the base surface of the pressure tank 19, and the other end of the electric valve 20 is connected to a pneumatic supply pipe 21. The other end of the pneumatic supply pipe 21 is connected to a pneumatic sleeve 11. The pressure tank 19 of this device can transmit gas to the electric valve 20, and the electric valve can close or open the pressure tank 19. The other end of the electric valve 20 is connected to the pneumatic supply pipe 21. So when the electric valve 20 is opened, the gas inside the pressure tank 19 will be transmitted to the pneumatic supply pipe 21 through the electric valve 20, and then transmitted to the pneumatic sleeve 11 through the pneumatic supply pipe 21, thereby providing a power source for the pneumatic drive assembly.

[0032] In this embodiment, specifically, the mixing hopper 5 is provided with an inclined platform 22. The end of the inclined platform 22 near the pressure tank 19 is fixedly connected to the upper end of the mixing hopper 5, and the other end of the inclined platform 22 is fixedly connected to the inlet end of the premixing box 6. When the device is in use, when the bottle flakes falling from the lower hopper 4 fall onto the bottom of the mixing hopper 5, they will specifically fall onto the base surface of the inclined platform 22 inside the mixing hopper 5, and thus the bottle flakes will slide down into the premixing box 6 under the action of the slope of the inclined platform 22.

[0033] In this embodiment, specifically, the mixing chamber 5 is equipped with multiple sets of first heating tubes 23. The first heating tubes 23 are located between the inner wall of the outer shell of the mixing chamber 5 and the inner wall of the inclined platform 22 of the mixing chamber 5. When the bottle tablets slide on the inclined platform 22 during use, the first heating tubes 23 at the bottom of the inclined platform 22 will preheat the bottle tablets. The spacing of the first heating tubes 23 near the pressure tank 19 is relatively wide, while the spacing of the first heating tubes 23 near the premixing box 6 is relatively close, so that the bottle tablets can be fully preheated when they slide into the premixing box 6.

[0034] In this embodiment, specifically, the premixing tank 6 has a discharge port 24 extending through one end away from the mixing bin 5. A servo motor 25 is fixedly installed on the base surface of the premixing tank 6. The output end of the servo motor 25 is connected to a second transmission rod 26 through the top surface of the premixing bin. The second transmission rod 26 is connected to a third transmission rod 27. A feeding roller 28 is fixedly installed on one end of the third transmission rod 27 away from the mixing bin 5. Multiple sets of feeding baffles 29 are fixedly installed on the circumference of the feeding roller 28. The feeding baffles 29 are equidistantly installed on the outer circumference of the feeding roller 28. The other end of the feeding roller 28 is connected to the end of the mixing bin 5 near the discharge port 24. The servo motor 25 drives the second transmission rod 26, which in turn drives the third transmission rod 27, thereby driving the feeding roller 28 and the feeding baffles 29 on the feeding roller 28. The melted bottle flakes are gradually moved to the discharge port 24 of the premixing tank 6 under the carrying of the feeding baffles 29.

[0035] In this embodiment, specifically, the premixing box 6 is provided with multiple sets of second heating tubes 30. The second heating tubes 30 are located between the inner wall of the outer shell of the premixing box 6 and the outer wall of the inner liner. The second heating tubes 30 are equidistantly installed between the inner wall of the outer shell of the premixing box 6 and the inner liner of the premixing box 6. The main function of the second heating tubes 30 of this device is to reheat the bottle flakes inside the premixing box 6, thereby melting the bottle flakes.

[0036] The working principle of this invention is as follows: First, the operator needs to adjust the parameters of the flow sensor 7. Then, the operator needs to put the cleaned bottle flakes of different types into different feeding hoppers 2. The bottle flakes will then be transferred into the feeding hopper 4 by the limiting of the feeding baffle. During use, the flow sensor 7 will transmit an electrical signal to the controller, which will control the opening and closing of the electric valve 20, thereby controlling the pneumatic push assembly to push the limiting baffle 14 to change the flow rate. Then, the distance sensor 8 will feed back the data to the controller according to the reference point, and then the flow sensor 7 will detect it to determine whether to adjust the flow rate again. In specific use, the controller will cause the electric valve 20 to inject gas into the pneumatic sleeve 11, thereby pushing the limiting baffle 14 and adjusting the angle between the limiting baffles 14 to control the flow rate. After that, the bottle flakes falling from the feeding hopper 4 will fall onto the bottom mixing hopper 5, specifically onto the base surface of the inclined platform 22 inside the mixing hopper 5, so that the bottle flakes will be inclined. The bottle flakes slide down the inclined platform 22 into the premixing tank 6. During this slide, the first heating element 23 at the bottom of the inclined platform 22 preheats the flakes. The spacing of the first heating element 23 near the pressure tank 19 is wider, while the spacing near the premixing tank 6 is closer, ensuring thorough preheating as the flakes slide into the premixing tank 6. Once inside the premixing tank 6, the flakes are completely melted by the second heating element 30. Then, the servo motor... Machine 25 drives the second transmission rod 26, which in turn drives the third transmission rod 27, thereby driving the feeding roller 28 and the feeding baffle 29 on the feeding roller 28. The melted bottle flakes are gradually moved to the discharge port 24 of the premixing box 6 by the feeding baffle 29, thus transferring the melted bottle flakes to the next process. Therefore, the device can adjust the bottle flake flow rate during use, and adjust the corresponding bottle flake flow rate according to the required amount of different types, making the device more efficient during use.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pretreatment mixing device for bottle flake raw materials with a uniform mixing structure, comprising a fixing frame (1), characterized in that: The fixed frame (1) has multiple feeding bins (2) on its base surface. The bottom of the feeding bins (2) is fixedly connected to a connecting baffle (3). The other end of the connecting baffle (3) is fixedly connected to a discharging bin (4). The discharging bin (4) is located directly below the output end of the discharging bin (4). One end of the discharging bin (5) is equipped with a pneumatic component. The end of the discharging bin (5) away from the pneumatic component is fixedly connected to a premixing box (6). The connecting baffle (3) has multiple flow sensors (7) inside. The discharging bin (4) has multiple pneumatic push components fixedly installed inside. The upper wall of the discharging bin (4) has multiple distance sensors (8) fixedly installed. The bottom of the discharging bin (4) has multiple flow limiting components rotatably installed. The flow sensor (7) is electrically connected to the pneumatic push component. The output end of the pneumatic push component is fixedly equipped with a flow limiting component. The mixing chamber (5) is equipped with multiple sets of first heating tubes (23), which are located between the inner wall of the outer shell of the mixing chamber (5) and the inner wall of the inclined platform (22) of the mixing chamber (5); The premixing box (6) has a discharge port (24) at one end away from the mixing bin (5). A servo motor (25) is fixedly installed on the base surface of the premixing box (6). The output end of the servo motor (25) is connected to the top surface of the premixing bin via a second transmission rod (26). The second transmission rod (26) is connected to a third transmission rod (27). A feeding roller (28) is fixedly installed at one end of the third transmission rod (27) away from the mixing bin (5). Multiple sets of feeding baffles (29) are fixedly installed on the circumference of the feeding roller (28). The feeding baffles (29) are equidistantly installed on the outer circumference of the feeding roller (28). The other end of the feeding roller (28) is connected to the mixing bin (5) near the discharge port (24).

2. The pretreatment mixing device for bottle flake raw materials with a uniform mixing structure according to claim 1, characterized in that: The pneumatic assembly is connected to the pneumatic push assembly. The pneumatic push assembly includes a first fixed plate (9), a second fixed plate (10), a pneumatic sleeve (11), and a pneumatic push rod (12). The first fixed plate (9) is fixedly connected to the inner wall of the feeding hopper (4). The other side of the first fixed plate (9) is hinged to the fixed end of the pneumatic sleeve (11). The pneumatic sleeve (11) is connected to the pneumatic push rod (12). The other end of the pneumatic push rod (12) is hinged to the second fixed plate (10). The other end face of the second fixed plate (10) is fixedly connected to the flow limiting assembly.

3. The pretreatment mixing device for bottle flake raw materials with a uniform mixing structure according to claim 2, characterized in that: The flow limiting component includes a first transmission rod (13) and a limiting baffle (14). The first transmission rod (13) is located at both ends of the bottom of the feeding bin (4). Multiple sets of the first transmission rods (13) are fitted with the limiting baffle (14) on one side close to each other. The output end of the pneumatic push component is fixedly installed on one side close to each other of the limiting baffle (14). The limiting baffle (14) is provided with a reference strip (31) on the side close to the distance sensor (8).

4. The pretreatment mixing device for bottle flake raw materials with a uniform mixing structure according to claim 3, characterized in that: The flow sensor (7) and the distance sensor (8) are electrically connected to a pressure component. The output point of the distance sensor (8) is the reference bar (31), and the outputs of multiple sets of the distance sensors (8) are located in the middle of the reference bar (31).

5. The pretreatment mixing device for bottle flake raw materials with a uniform mixing structure according to claim 4, characterized in that: The material feeding hopper (4) has fixed blocks (15) fixedly installed on both ends of its outer surface. A first connecting rod (16) is fixedly installed between the fixed blocks (15). A second connecting rod (17) is fixedly installed between the fixed blocks (15) and the fixed frame (1). A third connecting rod (18) is fixedly installed in the middle of the base surface of the first connecting rod (16). The other end of the third connecting rod (18) is fixedly connected to the fixed frame (1).

6. The pretreatment mixing device for bottle flake raw materials with a uniform mixing structure according to claim 5, characterized in that: The pneumatic assembly includes a pressure tank (19) and an electric valve (20). The electric valve (20) is connected through the base surface of the pressure tank (19). The other end of the electric valve (20) is connected through a pressure supply pipe (21). The other end of the pressure supply pipe (21) is connected through a pressure sleeve (11).

7. The pretreatment mixing device for bottle flake raw materials with a uniform mixing structure according to claim 1, characterized in that: The mixing silo (5) is provided with an inclined platform (22). One end of the inclined platform (22) near the pressure tank (19) is fixedly connected to the upper end of the mixing silo (5), and the other end of the inclined platform (22) is fixedly connected to one end of the feed inlet of the premix box (6).

8. The pretreatment mixing device for bottle flake raw materials with a uniform mixing structure according to claim 1, characterized in that: The premix box (6) is provided with multiple sets of second heating tubes (30). The second heating tubes (30) are located between the inner wall of the outer shell of the premix box (6) and the outer wall of the inner liner. The second heating tubes (30) are installed at equal intervals between the inner wall of the outer shell of the premix box (6) and the inner liner of the premix box (6).

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