A plastic property homogenization device

Abstract

The utility model discloses a kind of plastic performance homogenizing device, it includes homogenizing device ontology, the homogenizing mechanism of being arranged in the lower part of homogenizing device ontology, the pretreatment mechanism of being arranged in the upper part of homogenizing device ontology, homogenizing device ontology includes, base, support frame being arranged on base, driving mechanism is arranged on base, homogenizing mechanism includes conical blanking barrel, mixing barrel, conical blanking barrel bottom is connected with discharge pipe, mixing barrel interior is provided with stirring vane, pretreatment mechanism includes pretreatment barrel, hot air machine, pretreatment barrel interior is provided with pretreatment stirring vane. The application is improved by many aspects of structure, set pretreatment mechanism, can be preheated and dried to plastic raw materials before mixing, remove moisture and volatile impurities, the combination of improved homogenizing mechanism uses conical blanking barrel cooperation conical stirring vane and stirring vane, conical structure is supplemented with matched stirring vane design, ensure that multi-component material is fully and evenly mixed, ensure the consistency of product performance.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, and in particular to a plastic performance homogenization device. Background Technology

[0002] In the process of plastic modification and product manufacturing, it is usually necessary to thoroughly mix and homogenize the base resin with various pigments, fillers, and additives to obtain products with consistent performance and excellent appearance. The quality of homogenization directly determines the mechanical properties, optical properties, and quality stability of the final product. In existing technologies, the processing of plastic materials typically involves two stages: drying and homogenization. For hygroscopic engineering plastics such as PA and PET, specialized ovens and drying hoppers are required for preheating and drying to remove moisture. Improper operation can lead to residual moisture vaporization during subsequent high-temperature processing, causing defects such as bubbles and silver streaks inside the product, severely affecting its performance. Existing homogenization and mixing equipment is prone to creating mixing dead zones. For multi-component materials with large density differences or significantly varying addition ratios, it is difficult to achieve uniform distribution and dispersion, easily leading to problems such as color differences and performance fluctuations in the product. Utility Model Content

[0003] To address the aforementioned technical problems, the plastic performance homogenization device provided by this utility model, through various structural improvements, incorporates a pretreatment mechanism to preheat and dry the plastic raw materials before mixing, removing moisture and volatile impurities. The improved homogenization mechanism employs a combination of a conical feeding hopper and conical stirring blades. The conical structure, coupled with the matching stirring blade design, generates convection and shear, effectively eliminating mixing dead zones and ensuring thorough and uniform mixing of multi-component materials, thus guaranteeing consistent product performance.

[0004] This utility model is achieved using the following technical solution:

[0005] A plastic performance homogenization device includes: a homogenization device body, a homogenization mechanism disposed at the lower part of the homogenization device body, and a pretreatment mechanism disposed at the upper part of the homogenization device body. The homogenization device body includes a base and a support frame disposed on the base. A drive mechanism is disposed on the base and is drivenly connected to a stirring shaft. The homogenization mechanism includes: a conical feeding hopper and a mixing hopper disposed above the conical feeding hopper. A discharge pipe is connected to the bottom of the conical feeding hopper. A stirring blade is disposed inside the mixing hopper. The pretreatment mechanism includes: a pretreatment hopper and a hot air blower. A pretreatment stirring blade is disposed inside the pretreatment hopper. The hot air blower is connected to the bottom of the pretreatment hopper through a hot air delivery pipe. The stirring shaft is drivenly connected to the stirring blade and the pretreatment stirring blade.

[0006] Preferably, a screw feeder is provided on one side of the homogenization device body. The screw feeder includes a feeding box, a screw conveyor pipe, a geared motor, and a feeder outlet connected in sequence. A feeding box frame is provided below the feeding box, and the feeding box is connected in a through connection with the screw conveyor pipe. A conveyor pipe support is provided below the screw conveyor pipe.

[0007] Preferably, the top of the threaded screw conveyor pipe is provided with a feeder outlet, and the feeder outlet is connected in a through connection with the pretreatment barrel.

[0008] Preferably, the pretreatment barrel is provided with a pretreatment barrel cover on the top, and the pretreatment barrel cover is connected through to the outlet of the feeding machine.

[0009] Preferably, the pretreatment barrel cover is provided with an air outlet, and the end of the air outlet is connected to an air duct check valve.

[0010] Preferably, a humidity sensor is provided on the air outlet.

[0011] Preferably, the conical feeding hopper is equipped with conical stirring blades, and the stirring shaft is connected to the conical stirring blades in a driving connection.

[0012] Preferably, the mixing tank is provided with a mixing tank cover at the top, and the mixing tank cover is provided with a through-connected feed pipe and a feed solenoid valve connected to the feed pipe, and the feed pipe is through-connected to the bottom of the pretreatment tank.

[0013] Preferably, a homogenization mechanism support frame is connected to the support frame, and the homogenization mechanism support frame is located at the bottom of the mixing tank.

[0014] Preferably, a pretreatment support frame is connected to the support frame, and the pretreatment support frame is disposed on the top of the pretreatment barrel.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention, through various structural improvements, incorporates a pretreatment mechanism to preheat and dry plastic raw materials before mixing, removing moisture and volatile impurities. This prevents defects such as bubbles, silver streaks, or voids caused by damp materials during subsequent processing, improving the mechanical properties and appearance quality of the final product. The improved homogenization mechanism utilizes a conical feeding hopper combined with conical stirring blades. The conical structure, coupled with the matching stirring blade design, generates convection and shear, effectively eliminating mixing dead zones and ensuring thorough and uniform mixing of multi-component materials, guaranteeing consistent product performance. These structural improvements integrate drying and homogenization into a single device, with automatic conveying via a screw feeder, forming a complete continuous production line. This reduces material transfer, waiting, and cooling between different devices, shortening the production cycle and improving overall production efficiency. The screw feeder enables automatic, sealed feeding, and the infeed and discharge solenoid valves precisely control the transfer and discharge of materials between the pretreatment and homogenization chambers, enhancing automation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this embodiment;

[0018] Figure 2 This is a top-down structural diagram of this embodiment;

[0019] Figure 3 This is a three-dimensional structural diagram from the rear viewpoint of this embodiment;

[0020] Figure 4 This is a three-dimensional structural diagram of the pretreatment mechanism in this embodiment;

[0021] Figure 5 This is a three-dimensional structural diagram of the homogenization mechanism in this embodiment;

[0022] Figure 6 This is a three-dimensional structural diagram of the conical feeding hopper in this embodiment;

[0023] Figure 7 This is a three-dimensional structural diagram of the pretreatment stirring blade in this embodiment;

[0024] Figure 8 This is a three-dimensional structural diagram of the stirring blade in this embodiment.

[0025] Explanation of the reference numerals in the figure:

[0026] 1. Homogenization device body; 11. Base; 12. Support frame; 13. Drive mechanism; 14. Stirring shaft; 15. Drive mechanism seat; 16. Homogenization mechanism support frame; 17. Pretreatment support frame;

[0027] 2. Homogenization mechanism; 21. Conical feeding hopper; 22. Mixing hopper; 23. Conical stirring blade; 24. Stirring blade; 25. Mixing hopper cover; 26. Feed pipe; 27. Feed solenoid valve; 28. Discharge pipe; 29. ​​Discharge solenoid valve;

[0028] 3. Pretreatment mechanism; 31. Pretreatment tank; 32. Hot air blower; 33. Hot air supply duct; 34. Pretreatment stirring blades; 35. Pretreatment tank cover; 36. Air outlet; 37. Duct check valve; 38. Humidity sensor;

[0029] 4. Screw feeder; 41. Feeding box; 42. Feeding box frame; 43. Screw conveyor pipe; 44. Conveyor pipe support; 45. Gear motor; 46. Feeder outlet. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] See Figures 1 to 8 The plastic performance homogenization device provided in this embodiment includes: a homogenization device body 1, a homogenization mechanism 2 disposed at the lower part of the homogenization device body 1, and a pretreatment mechanism 3 disposed at the upper part of the homogenization device body 1. The homogenization device body 1 includes a base 11 and a support frame 12 disposed on the base. A drive mechanism 13 is disposed on the base 11, and the drive mechanism 13 is drivenly connected to a stirring shaft 14. The homogenization mechanism 2 includes: a conical feeding hopper 21 and a mixing hopper 22 disposed above the conical feeding hopper 21. A discharge pipe 28 is connected to the bottom of the conical feeding hopper 21. A stirring blade 24 is disposed inside the mixing hopper 22. The pretreatment mechanism 3 includes: a pretreatment hopper 31 and a hot air blower 32. A pretreatment stirring blade 34 is disposed inside the pretreatment hopper 31. The hot air blower 32 is connected to the bottom of the pretreatment hopper 31 through a hot air supply pipe 33. The stirring shaft 14 is drivenly connected to the stirring blade 24 and the pretreatment stirring blade 34.

[0032] This embodiment integrates the functions of material preheating and drying with fine homogenization, and achieves automated conveying through a screw conveyor, forming a continuous, efficient, and closed production system. Through various structural improvements, this invention incorporates a pretreatment mechanism that preheats and dries the plastic raw materials before mixing, removing moisture and volatile impurities. This prevents defects such as bubbles, silver streaks, or holes caused by damp materials during subsequent processing, improving the mechanical properties and appearance quality of the final product. The improved homogenization mechanism uses a conical feeding hopper combined with conical stirring blades. The conical structure, coupled with the matching stirring blade design, generates convection and shear, effectively eliminating mixing dead zones and ensuring thorough and uniform mixing of multi-component materials, guaranteeing consistent product performance.

[0033] See Figures 1 to 3 In this embodiment, the homogenization device body 1 includes: a base 11, which provides a stable support foundation for the device; a support frame 12, which is fixed on the base 11 and is used to support and connect various functional components; a drive mechanism 13, preferably a servo motor or a variable frequency motor, which provides the power required for stirring; a stirring shaft 14, which is driven to rotate by the drive mechanism 13. In this embodiment, the stirring shaft 14 is connected to the stirring blade 24, the pretreatment stirring blade 34, and the conical stirring blade 23; a drive mechanism seat 15, which is used to fix and install the servo motor or variable frequency motor of the drive mechanism 13; a homogenization mechanism support frame 16, which is used to support and fix the homogenization mechanism 2; and a pretreatment support frame 17, which is specifically used to support and fix the pretreatment mechanism 3, etc.

[0034] See Figures 4 to 8 In this embodiment, the homogenization mechanism 2 includes: a conical feeding hopper 21 located at the bottom of the homogenization mechanism, whose conical structure facilitates the concentrated downward flow of materials without dead corners; a mixing hopper 22 as the main mixing container, connected to the conical feeding hopper 21; conical stirring blades 23 and 24, mounted on the stirring shaft 14, extending into the mixing hopper 22; capable of adapting to the geometry of the hopper body, realizing convection and diffusion mixing of materials, and eliminating mixing dead corners; a mixing hopper cover 25, sealing the mixing hopper 22, preventing dust from escaping during the mixing process and maintaining the mixing environment; a feeding pipe 26 and a feeding solenoid valve 27: the feeding pipe 26 is connected to the outlet of the pretreatment mechanism 3, and the feeding solenoid valve 27 controls the timing and flow rate of material input; a discharge pipe 28 and a discharge solenoid valve 29 located at the bottom of the conical feeding hopper 21, after the homogenized material is mixed, it is discharged through the discharge pipe 28 and controlled by the discharge solenoid valve 29.

[0035] See Figures 1 to 4In this embodiment, the pretreatment mechanism 3 includes: a pretreatment tank 31, a container for preheating and drying plastic raw materials; a hot air blower 32 that generates dry hot air; a hot air supply pipe 33 that delivers the hot air generated by the hot air blower 32 to the bottom of the pretreatment tank 31, which can deliver hot air during the stirring process to ensure uniform heating; a pretreatment stirring blade 34 installed on the stirring shaft 14 for stirring the material in the pretreatment tank 31 to ensure uniform heating and prevent clumping; a pretreatment tank cover 35 that seals the pretreatment tank 31; an air outlet 36 for discharging humid hot air, which can be connected to an exhaust pipe; a duct check valve 37 installed on the hot air supply pipe 33 to prevent material or moisture from flowing back into the hot air blower 32 and to protect the equipment; and a humidity sensor 38 installed inside the pretreatment tank 31 for real-time monitoring of the humidity of the air inside the tank. When the humidity is lower than a set value, it indicates that the material has been sufficiently dried and can trigger the system to send it to the next device.

[0036] See Figures 1 to 3 In this embodiment, the screw feeder 4 includes: a feeding box 41 for storing plastic raw materials to be processed; a feeding box frame 42 for supporting the feeding box 41; a screw conveyor pipe 43 containing a screw rod that pushes the material from the bottom to the top when rotating; a conveyor pipe bracket 44 for fixing the screw conveyor pipe 43; a reduction motor 45 for providing power to the screw rod and controlling the feeding speed; and a feeder outlet 46 connected to the inlet of the pretreatment tank 31 to achieve automatic sealed feeding. This application integrates drying and homogenization into one device through various structural improvements and achieves automatic conveying through the screw feeder, forming a complete continuous production line. This reduces the transfer, waiting, and cooling processes of materials between different devices, shortens the production cycle, and improves overall production efficiency.

[0037] In this embodiment, a PLC controller is provided on the base 11. The PLC controller is electrically connected to the drive mechanism 13, the hot air blower 32, the geared motor 45, each solenoid valve, and the humidity sensor 38.

[0038] The workflow of this embodiment is as follows:

[0039] See Figures 1 to 8During feeding, the raw materials are added to the feeding box 41, and the reduction motor 45 is started. The material is conveyed to the pretreatment tank 31 at a uniform speed through the screw. During pretreatment, the drive mechanism 13 is started, which drives the pretreatment stirring blade 34 to rotate and turn the material. The hot air blower 32 blows hot air into the tank to heat and dry the material. The humidity sensor 38 monitors in real time, and the hot air stops after the standard is reached. During transfer, after the pretreatment is completed, the feeding solenoid valve 27 is opened, and the dried material falls into the mixing tank 22 of the homogenization mechanism 2 below by gravity. During the homogenization, the drive mechanism 13 continues to work, driving the conical stirring blade 23 and stirring blade 24 to rotate at high speed to perform high-intensity mixing and homogenization of the material. During discharge, after the homogenization is completed, the discharge solenoid valve 29 is opened, and the homogenized material is discharged through the discharge pipe 28 to enter the next process.

[0040] In summary, the above embodiments of this utility model, through various structural improvements and the inclusion of a pretreatment mechanism, can preheat and dry the plastic raw materials before mixing, removing moisture and volatile impurities. This avoids defects such as bubbles, silver streaks, or holes caused by damp materials during subsequent processing, improving the mechanical properties and appearance quality of the final product. The improved homogenization mechanism employs a conical feeding hopper combined with conical stirring blades and stirring blades. The conical structure, coupled with the matching stirring blade design, generates convection and shearing, effectively eliminating mixing dead zones and ensuring thorough and uniform mixing of multi-component materials, guaranteeing consistent product performance. By integrating drying and homogenization into a single device through various structural improvements and achieving automatic conveying via a screw feeder, a complete continuous production line is formed. This reduces material transfer, waiting, and cooling processes between different devices, significantly shortening the production cycle and improving overall production efficiency. Automatic, closed-loop feeding via the screw feeder, and precise control of material transfer and discharge between the pretreatment and homogenization chambers through inlet and outlet solenoid valves, enhances the degree of automation.

[0041] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A plastic property homogenizing device comprising: The homogenization device body, the homogenization mechanism disposed at the lower part of the homogenization device body, and the pretreatment mechanism disposed at the upper part of the homogenization device body are characterized in that: the homogenization device body includes a base and a support frame disposed on the base, and a driving mechanism is disposed on the base, the driving mechanism being drivenly connected to a stirring shaft; the homogenization mechanism includes a conical feeding hopper and a mixing hopper disposed above the conical feeding hopper, the bottom of the conical feeding hopper being connected to a discharge pipe; the mixing hopper is provided with stirring blades; the pretreatment mechanism includes a pretreatment hopper and a hot air blower, the pretreatment hopper is provided with pretreatment stirring blades, and the hot air blower is connected to the bottom of the pretreatment hopper through a hot air delivery pipe; the stirring shaft is drivenly connected to the stirring blades and the pretreatment stirring blades.

2. The plastic property homogenization device of claim 1, wherein: A screw feeder is provided on one side of the homogenization device body. The screw feeder includes a feeding box, a screw conveyor pipe, a reduction motor, and a feeder outlet connected in sequence. A feeding box frame is provided below the feeding box, and the feeding box is connected to the screw conveyor pipe. A conveyor pipe support is provided below the screw conveyor pipe.

3. The plastic property homogenization device of claim 2, wherein: The top of the threaded screw conveyor pipe is provided with a feeder outlet, which is connected to the pretreatment barrel.

4. The plastic property homogenization device of claim 2, wherein: The pretreatment barrel is provided with a pretreatment barrel cover on the top, and the pretreatment barrel cover is connected to the outlet of the feeding machine.

5. The plastic property homogenization device of claim 4, wherein: The pretreatment tank cover is provided with an air outlet, and the end of the air outlet is connected to an air duct check valve.

6. The plastic property homogenization device of claim 5, wherein: A humidity sensor is installed on the air outlet.

7. The plastic property homogenization device of claim 1, wherein: The conical feeding hopper is equipped with a conical stirring blade, which is connected to the stirring shaft via a drive mechanism.

8. The plastic property homogenization device of claim 1, wherein: The mixing tank is equipped with a mixing tank cover on top, and a feed pipe and a feed solenoid valve connected to the feed pipe are provided on the mixing tank cover. The feed pipe is connected to the bottom of the pretreatment tank.

9. The plastic property homogenization device of claim 1, wherein: The support frame is connected to a homogenization mechanism support frame, which is located at the bottom of the mixing tank.

10. The plastic property homogenization device of claim 1, wherein: A pretreatment support frame is connected to the support frame, and the pretreatment support frame is set on the top of the pretreatment barrel.

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