A polytetrafluoroethylene particle processing apparatus

Abstract

The present application relates to the technical field of polytetrafluoroethylene processing equipment, and particularly relates to a polytetrafluoroethylene particle processing equipment. The polytetrafluoroethylene particle processing equipment comprises a workbench, a screw extrusion mechanism, a temperature control system, an extrusion disc and a rotary cutting device. The screw extrusion mechanism is arranged on the workbench and comprises a heating screw and a screw shell, and is used for pushing and plasticizing polytetrafluoroethylene particles. The temperature control system is arranged in the screw extrusion mechanism and comprises a temperature sensor and a temperature regulator, and forms a temperature control assembly arranged on the heating screw. The extrusion disc is used for forming a preliminary shape of strip-shaped material and guiding the strip-shaped material to a next processing step. The rotary cutting device is used for cutting the strip-shaped material extruded through the extrusion disc. By introducing the precise temperature control system, the polytetrafluoroethylene particles are processed under the optimal temperature condition, so that the quality and consistency of the product are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of polytetrafluoroethylene processing, in particular to a polytetrafluoroethylene particle processing equipment. BACKGROUND

[0002] In modern industrial production, polytetrafluoroethylene (PTFE) has been widely used in many fields such as aerospace, medical devices, electronics and electrical appliances, and daily necessities due to its excellent chemical stability, high temperature resistance, low friction coefficient, and non-adhesion. With the increasing demand for the performance of polytetrafluoroethylene products, the technical level of its processing equipment is also facing new challenges.

[0003] Traditional polytetrafluoroethylene particle processing equipment usually adopts fixed screw extrusion mechanism and simple cutting device. Although these devices can meet the basic processing needs in the early production, they gradually expose many deficiencies in precision control, processing efficiency and operation convenience. For example, the temperature control of traditional equipment is not accurate enough, and such temperature control is difficult to be carried out on the running screw, which is difficult to ensure that the polytetrafluoroethylene particles are processed under the best conditions, thereby affecting the quality of the final product. At the same time, when cutting particles of different sizes is needed, the traditional cutting device needs to be stopped and the cutting knife needs to be adjusted manually, which not only reduces the production efficiency, but also increases the operation complexity.

[0004] Therefore, there is an urgent need to develop a new type of polytetrafluoroethylene particle processing equipment that can provide more accurate processing temperature control, higher cutting efficiency and operation convenience, so as to meet the higher requirements of modern industrial production on polytetrafluoroethylene processing technology. SUMMARY

[0005] (I) The technical problem to be solved by the present application is that the existing polytetrafluoroethylene (PTFE) particle processing process has the problems of inaccurate temperature control, low cutting efficiency and complex operation.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the polytetrafluoroethylene particle processing equipment provided by an embodiment of the present application comprises: a workbench, a screw extrusion mechanism, a temperature control system, an extrusion disc and a rotary cutting device, wherein:

[0008] The workbench constitutes the main support of the equipment;

[0009] The screw extrusion mechanism is arranged on the workbench and comprises a heating screw and a screw shell, and is used for pushing and plasticizing the polytetrafluoroethylene particles;

[0010] A temperature control system is located inside the screw extrusion mechanism, including a temperature sensor and a temperature regulator, the temperature sensor is connected with the screw shell, the temperature regulator is connected with the temperature sensor, forming a temperature control assembly which is sleeved on the heating screw;

[0011] An extrusion disc is fixed at the discharge end of the screw extrusion mechanism, having a plurality of extrusion holes arranged in a circular ring at equal intervals, forming a preliminary shape for the strip-shaped material and guiding it to the next processing step;

[0012] A rotary cutting device is provided at the material outlet side of the extrusion disc for cutting the strip-shaped material extruded through the extrusion disc.

[0013] According to one embodiment of the present application, the temperature control system is provided with multiple groups along the length direction of the screw, each group including a temperature sensor and a temperature regulator; each temperature sensor is covered above the heating screw and fixedly connected with the top of the screw shell, for measuring the temperature at different positions inside the screw; each temperature regulator is buckled below the heating screw and connected with the temperature sensor, each temperature regulator includes multiple heating units capable of receiving temperature signals from the temperature sensor; a central control unit is connected with all temperature sensors and heating units, responsible for receiving temperature data and adjusting the output power of each heating unit according to the set temperature parameters. This configuration not only allows precise control of the temperature during processing, improving the quality and consistency of the product, but also significantly reduces energy consumption by optimizing heating efficiency, enhancing the overall energy management and cost-effectiveness of the system.

[0014] According to one embodiment of the present application, one end of the temperature regulator is rotatably connected with the temperature sensor, and the other end is provided with a buckling mechanism, so that the heating screw can be easily detached from the temperature control system. This design allows the temperature regulator to be quickly and easily removed from the heating screw when maintenance or replacement is required, greatly improving the maintenance efficiency and safety of the equipment. The presence of the buckling mechanism ensures stable connection between the temperature regulator and the heating screw during normal operation, preventing equipment failure due to vibration or operational errors. In addition, this easy-to-operate design reduces the dependence on professional technicians, thereby reducing maintenance costs and increasing the operating time of the production line.

[0015] According to one embodiment of the present application, the rotary cutting device comprises a rotating shaft component, a fixed support and a blade component, wherein the rotating shaft component has a rotation axis perpendicular to the extrusion disc and concentric with the annular arrangement of the extrusion holes; the blade component comprises a plurality of blade groups, each blade group containing two oppositely arranged blades with a fixed interval between them and sequentially arranged along the extrusion direction of the strip material, and the plurality of blade groups are arranged around the rotating shaft component at equal distances through the fixed support arranged on the rotating shaft component. This precise geometric alignment ensures the uniformity and repeatability of the cutting process, thereby improving the quality and appearance consistency of the product. In addition, the modular design of the blade component makes blade replacement quick and simple, facilitating regular maintenance or adjusting the blade configuration according to different production needs. The structural strength and design of the fixed support also ensure stability and reduce vibration during high-speed rotation, further improving the safety of operation and the durability of the equipment.

[0016] According to one embodiment of the present application, the rotary cutting device further comprises: the rotating shaft assembly comprises a main shaft, a plurality of crossbeams and a fixed disc; wherein the number of crossbeams is consistent with the number of blade groups, these crossbeams are arranged in parallel along the main shaft and are firmly connected with the main shaft through the fixed disc, constructing a plurality of cutting intervals towards the extrusion holes of the extrusion disc; the fixed assembly is arranged in the cutting interval, which comprises two oppositely arranged fixed elements, each fixed assembly contains sequentially connected base, support and blade clamp, and is configured so that the blades are vertically arranged between the blade clamps. This design enhances the structural stability of the entire rotary cutting device and the accuracy of operation. By precisely controlling the vertical positioning of the blades, it can be ensured that each cutting is extremely accurate, thereby improving the dimensional accuracy and appearance quality of the product. In addition, the structural strength reduces errors caused by equipment vibration, improves cutting efficiency and long-term reliability of the equipment. The introduction of the fixed disc not only ensures the correct positioning of the crossbeams and blades, but also makes the entire device stable during high-speed operation, reduces maintenance requirements and prolongs the service life of the equipment.

[0017] According to one embodiment of the present application, the rotary cutting device further comprises a blade angle adjusting mechanism, which comprises a positioning rotating device between the base and the support. This design allows users to adjust the cutting angle of the blade according to different processing needs, providing greater flexibility and precise control of the cutting process. The adjustability of the blade angle not only allows for adaptation to materials of different thicknesses and hardness, but also optimizes the cutting path, reduces material waste, and improves cutting efficiency. In addition, the introduction of the positioning rotating device ensures the accuracy and repeatability of angle adjustment, allowing for quick and easy replacement or adjustment of the blade, greatly improving the flexibility and response speed of the production line. The design of this blade angle adjusting mechanism not only improves the processing quality of the product, but also reduces the difficulty of operation and maintenance costs, enhancing the practicality and economic benefits of the equipment.

[0018] According to one embodiment of the present application, the rotary cutting device is characterized in that the rotating shaft assembly is configured with a speed adjusting mechanism, which includes a set of rotating parts and an electronic speed controller. The rotating parts are directly connected to the rotating shaft assembly, allowing the rotational speed of the rotating shaft to be adjusted according to the change in the rotational speed of the rotating parts. The electronic speed controller is connected to the rotating parts and automatically adjusts the rotational speed of the rotating parts according to the input speed requirement, thereby achieving precise control of the rotational speed of the rotating shaft assembly. The introduction of this speed adjusting mechanism significantly improves the adaptability and versatility of the rotary cutting device, allowing the equipment to be quickly adjusted according to the cutting needs and characteristics of different materials. The use of the electronic speed controller not only improves the consistency and repeatability of the cutting speed, but also reduces material damage and tool wear caused by speed mismatch, further improving production efficiency and product quality. In addition, the automatic speed adjustment function greatly reduces the complexity of operation, enhancing the continuity and stability of the production process, which is of great significance for improving the automation level of the entire production line and reducing the technical requirements of operators.

[0019] According to one embodiment of the present application, the rotary cutting device is further provided with a particle separation device below, which collects and screens the particles and waste generated by the rotary cutting device, comprising:

[0020] A collection port located below the multiple blade assembly groups for initially receiving the cut materials;

[0021] A screening unit connected to the collection port, responsible for further screening the materials;

[0022] The granular material conveying pipeline and the waste conveying pipeline respectively extend from the screening unit and are used for conveying screened granular material and waste respectively. The design of the granular material separation device significantly improves the efficiency and environmental performance of material processing. By effectively separating useful granular material and waste, not only is the utilization rate of resources optimized, reducing the waste of raw materials, but also the environmental burden is reduced. The positioning of the collection port ensures efficient capture of material from the cutting area, while the high-precision design of the screening unit ensures effective separation of granular material and waste, thereby improving the purity and quality of the product. The addition of the conveying pipeline further automates the material processing process, improving the smoothness and automation level of the overall workflow, reducing the need for manual operation and potential operational errors.

[0023] According to one embodiment of the present application, the polytetrafluoroethylene particle processing equipment further comprises a granular material bin and a raw material inlet, the granular material pipeline is connected to the granular material bin, the slag pipeline is connected to the raw material inlet, and the outer wall of the granular material pipeline is provided with a recycling preheating device connected to the temperature control system. This design significantly enhances the energy efficiency and material processing efficiency of the entire system. The provision of the granular material bin and the raw material inlet allows the recycled waste to be directly reintroduced into the production process, thereby reducing material waste and processing costs. In addition, the recycling preheating device on the granular material pipeline uses the waste heat from the temperature control system to preheat the granular material entering the granular material bin, which not only improves the energy reuse rate, but also optimizes the processing conditions of the granular material, ensuring that the granular material reaches the desired temperature before being processed again, improving processing efficiency and product quality.

[0024] According to one embodiment of the present application, the screw housing is provided with heat dissipation holes on both sides. The main advantage of this design is to improve the heat dissipation efficiency of the entire mechanical equipment, thereby maintaining the temperature stability of the screw extrusion mechanism during long-term operation. Preventing overheating of the equipment caused by temperature control system failure helps maintain the integrity and functionality of mechanical components and prolongs the service life of the equipment.

[0025] (Three) Advantages of the present application: The present application introduces an accurate temperature control system to ensure that polytetrafluoroethylene particles are processed at the optimal temperature, thereby improving product quality and consistency. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any inventive labor.

[0027] Fig. 1A three-dimensional structural schematic diagram of a polytetrafluoroethylene particle processing equipment provided by an embodiment of the present application is shown in the figure;

[0028] Fig. 2 A three-dimensional structural schematic diagram of the interior of a polytetrafluoroethylene particle processing equipment provided by an embodiment of the present application is shown in the figure;

[0029] Fig. 3 A three-dimensional structural schematic diagram of a screw housing of a polytetrafluoroethylene particle processing equipment provided by an embodiment of the present application is shown in the figure;

[0030] Fig. 4 A three-dimensional structural schematic diagram of a temperature control system of a polytetrafluoroethylene particle processing equipment provided by an embodiment of the present application is shown in the figure;

[0031] Fig. 5 A schematic diagram of a rotary cutting device and an extrusion disc butt joint structure of a polytetrafluoroethylene particle processing equipment provided by an embodiment of the present application is shown in the figure;

[0032] Fig. 6 A three-dimensional structural schematic diagram of a rotary cutting device of a polytetrafluoroethylene particle processing equipment provided by an embodiment of the present application is shown in the figure;

[0033] Fig. 7 A three-dimensional structural schematic diagram of a cutting end of a rotary cutting device of a polytetrafluoroethylene particle processing equipment provided by an embodiment of the present application is shown in the figure.

[0034] Icon: 1, workbench; 2, screw extrusion mechanism; 21, raw material inlet; 22, screw housing; 221, heat dissipation hole; 23, heating screw; 3, extrusion disc; 31, extrusion hole; 4, rotary cutting device; 41, rotary shaft part; 411, main shaft; 412, crossbeam; 413, fixed disc; 42, fixed assembly; 421, base; 422, support; 4221, telescopic pressing rod; 423, cutter clamp; 4241, rotating shaft; 4242, connecting plate; 4243, limiting groove; 43, cutter assembly; 44, slide rail; 45, cover; 5, particle separation device; 51, material receiving port; 52, screening assembly; 53, particle pipeline; 54, slag pipeline; 6, particle bin; 7, temperature control system; 71, temperature sensor; 72, temperature regulator; 73, fastening mechanism; 74, recycling preheating device; 75, central control unit. DETAILED DESCRIPTION

[0035] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the following further describes the present application in conjunction with the accompanying drawings and specific embodiments, and the embodiments and features in the embodiments of the present application can be combined with each other without conflict. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0036] As shown in the present embodiment, an apparatus for processing polytetrafluoroethylene particles is described, which includes a workbench 1, a screw extrusion mechanism 2, a temperature control system 7, an extrusion disc 3, and a rotary cutting device 4. Figs. 1 to 7

[0037] The workbench 1 serves as the basic support of the entire apparatus, providing the necessary stability and carrying capacity. The workbench 1 is designed to be robust, capable of effectively bearing the weight of all mechanical components above and the forces generated during operation.

[0038] The screw extrusion mechanism 2 is installed above the workbench 1, mainly composed of a heating screw 23 and a screw shell 22. The core function of the screw extrusion mechanism 2 is to advance and plasticize polytetrafluoroethylene particles. The heating screw 23 heats the polytetrafluoroethylene particles to an appropriate temperature through internal heating elements, allowing them to change from a solid state to a plasticized viscous state, while the screw shell 22 provides a relatively closed environment to maintain heat and polymer containment.

[0039] The temperature control system 7 is located inside the screw extrusion mechanism 2, with key components including a temperature sensor 71 and a temperature regulator 72. The temperature sensor 71 is directly connected to the screw shell 22, capable of monitoring the temperature changes inside the screw in real time, and these data are transmitted to the temperature regulator 72. The temperature regulator 72 automatically adjusts the output power of the heating unit on the heating screw 23 according to the feedback from the temperature sensor 71, ensuring that the temperature of the plasticized polytetrafluoroethylene remains within the optimal range.

[0040] The extrusion disc 3 is fixed at the discharge end of the screw extrusion mechanism 2, equipped with multiple evenly distributed and circularly arranged extrusion holes 31. The design of these extrusion holes 31 allows the plasticized polytetrafluoroethylene particles to be extruded into pre-shaped strip materials, and guides these strip materials to move towards the rotary cutting device 4.

[0041] ​The rotary cutting device 4 is located at the material outlet side of the extrusion disc 3, mainly including a rotary shaft component 41, a blade component, and other fixing and adjusting mechanisms. The rotary cutting device 4 drives the blade installed thereon to cut efficiently through the high-speed rotation of the rotary shaft component 41. The blade component usually includes a plurality of blade groups, each of which is accurately installed on the rotary shaft component 41 to ensure accurate cutting along the predetermined path each time, thereby ensuring the size consistency and appearance quality of the strip-shaped material.

[0042] As shown in Fig. 3 and Fig. 4 The temperature control system 7 is fixedly connected with the screw shell 22, and when the screw shell 22 is removed, the temperature control system 7 is taken out together, which is convenient for detecting the heating screw 23. At the same time, the temperature control system 7 is arranged at one side of the discharge end of the heating screw 23, which can ensure the heating temperature before discharging as much as possible, so that the discharging quality is further ensured. Specifically, a plurality of control units are distributed along the length direction of the screw, and in the embodiment, two groups are included. Each group includes a precise temperature sensor 71 and a temperature regulator 72, which are snap-fitted to form a ring-shaped sleeve around the periphery of the heating screw 23 and maintain a certain distance from the heating screw 23. The distance is not less than 12 centimeters, which ensures that the temperature control system 7 is not damaged when the heating screw 23 vibrates. The temperature sensor 71 is a high-temperature-resistant thermocouple installed at the top of the screw shell 22 opposite the heating screw 23. The mounting point of the thermocouple is fixed by a special high-temperature-resistant mounting bracket to withstand high temperature and mechanical vibration, ensuring that the thermocouple can work stably in harsh working environment and accurately monitor the internal temperature. Each temperature regulator 72 is installed below the heating screw 23 and includes a plurality of resistance heating units. These heating units are independently controlled according to the data provided by the temperature sensor 71, making the temperature regulation more precise and flexible. Each heating unit is composed of a high-temperature-resistant resistance wire, which is optimally laid out to ensure uniform heat distribution and avoid any hot or cold spots, so that the polytetrafluoroethylene material is uniformly heated and plasticized.

[0043] Further, the screw shell 22 is provided with heat dissipation holes 221 on both sides. The main advantage of this design is to improve the heat dissipation efficiency of the entire mechanical equipment, thereby maintaining the temperature stability of the screw extrusion mechanism 2 during long-time operation. Preventing overheating of the equipment caused by failure of the temperature control system 7 helps to maintain the integrity and function of mechanical parts and prolongs the service life of the equipment.

[0044] The central control unit 75, as the core of the system, is equipped with a high-performance microprocessor and advanced temperature management software. This central unit receives real-time data from each temperature sensor 71, processes it through precise algorithms, and dynamically adjusts the output power of each heating unit. This intelligent adjustment is based on a PID control algorithm, which automatically adjusts the heating power to maintain the set temperature point, thereby optimizing the thermal efficiency of the entire extrusion process and the quality of material processing.

[0045] In addition, the system also includes an integrated monitoring interface that displays all key temperature data and the status of the heating units, while providing manual adjustment options for technicians to make adjustments according to special needs. The interface can also report any system failures or maintenance needs, allowing operators to respond quickly and maintain the continuity of production and the optimal working state of the equipment.

[0046] Through this meticulous design, the temperature control system 7 of the present invention not only improves the quality and consistency of polytetrafluoroethylene particle processing, but also significantly reduces operating costs through intelligent energy management, improving overall production efficiency and economic benefits.

[0047] Further, the temperature regulator 72 is specially designed for quick installation and efficient maintenance. One end of the temperature regulator 72 is connected to the temperature sensor 71 through a swivel joint, which allows the temperature regulator 72 to make slight angular adjustments while maintaining electrical and thermal connections, ensuring that the two semicircular temperature regulators 72 can be clamped under the heating screw 23, and adapting to possible slight positional changes of the heating screw 23 during operation.

[0048] The clamping mechanism 73 at the other end is designed as a quick-release type locking device, which allows the entire temperature regulator 72 to be quickly installed or removed from the heating screw 23 without the need for any tools. This mechanism is made of high-temperature-resistant and wear-resistant materials, ensuring its functionality and structural integrity even under long-term high-temperature operating conditions. The clamping mechanism 73 contains a spring-loaded locking pin inside, which can be activated or released by simple pressure, thereby achieving quick locking or unlocking actions.

[0049] In addition, the design of the temperature regulator 72 also includes anti-vibration features, which are achieved by adding rubber or other flexible material pads to the clamping mechanism 73. These pads not only reduce micro-movement caused by equipment vibration, but also enhance the sealing of the entire connection, preventing heat energy loss and environmental pollutants from entering.

[0050] The design of the temperature regulator 72 greatly facilitates the routine maintenance and emergency repair work of the equipment, enabling the operating personnel to quickly and safely replace or repair the temperature regulator 72 without going through a complicated disassembly process. Simplified maintenance procedures not only reduce equipment downtime, but also reduce dependence on professional technicians, further reducing operating costs.

[0051] As shown in Figs. 5 to 7 The rotating cutting device 4 is composed of multiple key components to ensure precise and efficient cutting operations. The device mainly includes a rotating shaft component 41, a fixed assembly 42, a cutter assembly 43, and a protective housing 45.

[0052] The rotating shaft component 41 is the core of the entire rotating cutting device 4, with the main shaft 411 running through the center of the entire device, providing the necessary rotating force. The main shaft 411 is driven by a motor or other power source, ensuring that the cutter assembly 43 can rotate at a constant and appropriate speed. The cross beams 412 are evenly distributed around the main shaft 411, arranged in parallel with the main shaft 411, and connected to the main shaft 411 through the slide rails 44. This design allows the cross beams 412 to be adjusted axially according to operational needs.

[0053] One end of each cross beam 412 is fixedly connected to the fixed disc 413, which is directly installed on the main shaft 411, serving as a stable support platform for the cross beams 412 and the cutter assembly 43. The fixed assembly 42 includes a base 421 and a support 422, where the support 422 is connected to the base 421 through an extendable compression rod 4221. The extendable compression rod 4221 allows the cutter assembly 43 to adjust its position and pressure during the cutting process according to the material thickness, thereby adapting to different cutting requirements.

[0054] The cutter assembly 43 is composed of multiple cutter clamps 423, each of which is installed with a cutter and is firmly connected to the base 421 through the support 422. The design of the cutter clamp 423 ensures the stability and accuracy of the cutter during high-speed rotation. To further enhance the adjustment flexibility of the cutter, the cutter angle adjustment mechanism includes a rotating device composed of a rotating shaft 4241 and a connecting plate 4242, allowing the cutter to adjust its angle during the cutting process to optimize cutting efficiency and reduce material waste.

[0055] The rotating shaft 4241 connects the support 422 and the base 421, ensuring smooth rotation of the cutter when the cutting angle needs to be changed, while the limiting groove 4243 is installed on the base 421 to limit the rotation range of the support 422, preventing the cutter from deviating or being damaged due to excessive adjustment.

[0056] The housing 45 serves as a peripheral protection for the rotary cutting device 4, surrounding the entire rotary shaft component 41 and cutter assembly 43. It not only protects the operator from flying particles, but also reduces the impact of dust and impurities in the environment on the internal machinery of the device.

[0057] This fine component configuration and interconnection design enables the rotary cutting device 4 to provide extremely high cutting precision and material processing efficiency while maintaining operational safety, allowing the device to handle various complex and high-demand industrial production tasks.

[0058] According to one embodiment of the present application, the rotary cutting device 4 is equipped with a particle separation device 5 below it, which is specifically designed to collect and separate the particles and waste generated after being processed by the rotary cutting device 4. The particle separation device 5 includes a receiving port 51, a screening assembly 52, a particle pipeline 53, and a residue pipeline 54. Through the coordinated work of these components, the efficiency and environmental performance of material processing are significantly improved.

[0059] The receiving port 51 is located directly below the multiple sets of blade assemblies, designed to initially receive the materials cut from the rotary cutting device 4. The choice of this location ensures efficient capture of all types of materials from the cutting area, whether they are particles or waste. The receiving port 51 is followed by the screening assembly 52, which is directly connected to the receiving port 51 and is responsible for more detailed screening of the received materials. The screening assembly 52 effectively distinguishes between particles and waste through high-precision filters or other separation techniques, ensuring that only standard-compliant particles can enter the next processing stage.

[0060] Extending from the screening assembly 52 are two dedicated conveying pipelines: the particle pipeline 53 and the residue pipeline 54. The particle pipeline 53 is responsible for conveying the screened particles to the particle bin 6, while the residue pipeline 54 transports the waste to the raw material inlet 21 for recycling or processing. The design of this separation and conveying system not only optimizes resource utilization and reduces raw material waste, but also significantly reduces environmental burden.

[0061] The particle bin 6 serves as a container for storing screened particles, directly connected to the particle pipeline 53 for quick storage and retrieval of particles. The raw material inlet 21 is connected to the residue pipeline 54, allowing waste to be recycled and reducing the overall material processing cost. In addition, the outer wall of the particle pipeline 53 is equipped with a recycling preheating device 74 connected to the temperature control system 7. This preheating device uses the waste heat from the temperature control system 7 to preheat the particles entering the particle bin 6, improving energy reuse and optimizing particle processing conditions. This ensures that the particles reach the ideal temperature conditions before being processed again, thereby improving processing efficiency and product quality.

[0062] Operation process of the polytetrafluoroethylene particle processing equipment:

[0063] Preparation phase:

[0064] Hopper filling: Fill the hopper with polytetrafluoroethylene (PTFE) particles and ensure that the hopper is properly connected to the raw material inlet 21.

[0065] Device startup: Turn on the power of the device and start the entire polytetrafluoroethylene particle processing equipment.

[0066] Start the extrusion mechanism:

[0067] Temperature and pressure adjustment: Adjust the temperature and pressure inside the screw extrusion mechanism 2 through the temperature control system 7 to ensure that it reaches the appropriate operating conditions. The temperature sensor 71 monitors the real-time temperature inside the screw, and the temperature regulator 72 adjusts the power of the heating unit according to the feedback to maintain the optimal processing temperature.

[0068] Screw extrusion mechanism 2 startup: Start the screw extrusion mechanism 2 to push the polytetrafluoroethylene particles through the heated screw 23 and plasticize them.

[0069] Adjust the extrusion disc 3 and the rotary cutting device 4:

[0070] Extrusion disc 3 adjustment: Adjust the number and arrangement of extrusion holes 31 on the extrusion disc 3 according to the required particle size and shape. Ensure that the position and spacing of the extrusion holes 31 are suitable for the desired extrusion effect.

[0071] Rotary cutting device 4 setting: Adjust the rotary cutting device 4 to ensure that its rotating shaft component 41 is accurately aligned with the extrusion holes 31 of the extrusion disc 3. Set the angle and speed of the rotary cutting device 4 to match the output of the extrusion disc 3.

[0072] Granulation operation:

[0073] Start the rotary cutting device 4: Activate the rotary cutting device 4 so that the main shaft 411 starts to rotate at high speed, and the cutter assembly 43 starts to cut the extruded strip material along the preset path.

[0074] Cutting of strip material: The screw extrusion mechanism 2 pushes the plasticized polytetrafluoroethylene particles through the extrusion disc 3 to form a strip material. Then, the cutter assembly 43 of the rotary cutting device 4 cuts it into particles of a predetermined shape.

[0075] Collect and separate particles:

[0076] Particle collection: Set up appropriate collection devices below the extrusion holes 31 to collect the cut particles.

[0077] Granules and slag separation: the granules and slag generated in the cutting process are separated by the granule separation device 5. The granules are transported to the granule bin 6 through the granule pipeline 53, and the slag is recycled to the raw material inlet 21 through the slag pipeline 54.

[0078] Completion and maintenance:

[0079] Operation completion: after completing all granulation operations, turn off the rotary cutting device 4 and the screw extrusion mechanism 2.

[0080] Equipment shutdown and maintenance: turn off the power of the equipment, clean and maintain the equipment as necessary to ensure the optimal performance of the equipment and prepare for the next use.

[0081] In the description of the present application, it should be noted that the terms "upper", "lower" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0082] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "communication", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly communicated, or it can be indirectly communicated through an intermediate medium, or it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.

[0083] The above is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A polytetrafluoroethylene particle processing apparatus, characterized by, The utility model relates to a polytetrafluoroethylene particle processing equipment, including: Workbench, constitute equipment main part support; Screw extrusion mechanism, set up in workbench, including heating screw and screw shell, for polytetrafluoroethylene particle push and plasticization; Temperature control system, be located in screw extrusion mechanism inside, including temperature sensor and temperature regulator, temperature sensor with screw shell link to each other, temperature regulator with temperature sensor link to each other, form the temperature control assembly of setting on heating screw, temperature control system along heating screw length direction is provided with multiple groups, and each group temperature control system includes temperature sensor and temperature regulator, and each group temperature sensor is covered and is set in the top fixed connection of screw shell with heating screw above, for measuring the temperature of different positions in heating screw, and each group temperature regulator is buckled and set in the below of heating screw and is connected with temperature sensor, and each group temperature regulator includes multiple heating units and can receive the temperature signal from temperature sensor; Temperature regulator one end with temperature sensor rotates and connects, the other end is equipped with buckling mechanism, so that heating screw is convenient for separating from temperature control system, and flexible gasket is equipped on buckling mechanism, and the distance between temperature control system and heating screw keeps not less than 12 centimeters; Extrusion disc, fixed in the discharge end of screw extrusion mechanism, with multiple equidistance and circular ring arrangement's extrusion hole, form the preliminary shape for strip material and guide to next processing step; Rotary cutting device, the rotary cutting device is arranged in the material export side of the extrusion disc, is used for cutting the strip material that extrudes through the extrusion disc; Central control unit, with all temperature sensor and heating unit link, is responsible for receiving temperature data and adjusting the output power of each heating unit according to the temperature parameter set, based on PID algorithm to the output power of each segmented heating unit Dynamic adjustment is carried out to realize the independent closed loop temperature control of screw axial segmentation; Granule separation device, set up below rotary cutting device, the separation device is communicated with granule warehouse through granule pipeline, is communicated with raw material inlet through slag pipeline, and the outer wall of granule pipeline is equipped with the recovery preheating device connected with temperature control system.

2. The polytetrafluoroethylene particle processing equipment according to claim 1, wherein: The rotary cutting device comprises a rotary shaft component, a fixed support and a blade component, wherein the rotary axis of the rotary shaft component is perpendicular to the extrusion disc and concentric with the annular arrangement of the extrusion holes. The blade component comprises a plurality of blade groups, each blade group comprising two oppositely arranged blades with a fixed interval therebetween and sequentially arranged along the extrusion direction of the strip material, and the plurality of blade groups are arranged around the rotary shaft component in an equidistant manner through the fixed support arranged on the rotary shaft component.

3. The polytetrafluoroethylene particle processing equipment according to claim 2, wherein: The rotary cutting device further comprises: The rotating shaft assembly comprises a main shaft, a plurality of cross beams and a fixing disc; wherein the number of the cross beams is consistent with the number of the blade groups, the cross beams are arranged in parallel along the main shaft and are firmly connected with the main shaft through the fixing disc, and a plurality of cutting intervals towards the extrusion holes of the extrusion disc are constructed; A fixing assembly is arranged in the cutting interval, the fixing assembly comprises two groups of oppositely arranged fixing elements, each group of fixing assemblies comprises sequentially connected bases, supporting members and blade clamps, and the blades are arranged vertically between the blade clamps.

4. The polytetrafluoroethylene particle processing equipment according to claim 3, wherein: The rotary cutting device further comprises a cutter angle adjusting mechanism, and the cutter angle adjusting mechanism comprises a positioning rotating device arranged between the base and the supporting member.

5. The polytetrafluoroethylene particle processing equipment according to claim 4, wherein: The rotating shaft assembly of the rotary cutting device is provided with a speed adjusting mechanism, the mechanism comprises a rotating part and an electronic speed controller, the rotating part is directly connected with the rotating shaft assembly and allows the rotating speed of the rotating shaft to be adjusted according to the change of the rotating speed of the rotating part; the electronic speed controller is connected with the rotating part and automatically adjusts the rotating speed of the rotating part according to the input speed requirement, so as to realize the accurate control of the rotating speed of the rotating shaft assembly.

6. The polytetrafluoroethylene particle processing equipment according to any one of claims 1 to 5, wherein: The particle separating device separates and screens the particles and waste materials generated by the rotary cutting device, and comprises: A collecting port located below the plurality of blade assemblies and used for initially receiving the cut materials; A screening unit connected with the collecting port and responsible for further screening the materials; A particle conveying pipeline and a waste conveying pipeline respectively extending from the screening unit and respectively used for conveying the screened particles and waste materials.

7. The polytetrafluoroethylene particle processing equipment according to claim 6, wherein: The polytetrafluoroethylene particle processing equipment further comprises a particle bin and a raw material feeding port, the particle conveying pipeline is connected to the particle bin, the waste conveying pipeline is connected to the raw material feeding port, and the outer wall of the particle conveying pipeline is provided with a recycling preheating device connected with the temperature control system.

8. The polytetrafluoroethylene particle processing equipment according to claim 7, wherein: The screw housing is provided with heat dissipation holes on both sides.

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