Continuous feeding method for plastic products

Abstract

The invention relates to the technical field of plastic product processing, and discloses a plastic product continuous feeding method which comprises the following steps: step 1, intelligent material level monitoring: mounting a high-sensitivity material level sensor in a hopper, monitoring material level change in real time, and ensuring timely material supplement; and 2, multi-channel feeding design is conducted, specifically, a plurality of feeding channels are designed, multiple materials are allowed to be fed at the same time, and feeding interruption caused by blockage of a single channel is avoided. According to the continuous feeding method for the plastic products, through intelligent material level monitoring and multi-channel feeding design, the system can monitor the material level in real time and supplement materials in time, meanwhile, due to the multi-channel design, when a certain channel is blocked, the channel is automatically switched to a standby channel, and therefore production stagnation caused by feeding interruption is avoided, and the production efficiency is improved. By means of the continuous and stable feeding mode, the production efficiency and stability of the injection molding process are improved, and production delay and cost loss caused by the feeding problem are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of plastic product processing, and in particular to a continuous feeding method for plastic products. Background Art

[0002] Plastic products are made of polymer materials. They are widely used in daily life, including packaging materials, building materials, automotive parts, electronic equipment housings, etc. Plastic products play an important role in many fields due to their lightness, durability and relatively low cost. During the injection molding process, plastic particles are transported to the hopper of the injection molding machine through a central feeding system. This system usually uses vacuum conveying or screw conveying to transport plastic raw materials from the storage bin to the injection molding machine. The feeding system can automatically adjust the feeding amount according to production needs to ensure that the injection molding machine maintains continuous feeding throughout the production process, thereby improving production efficiency and product quality; During the injection molding process, the continuous feeding of plastic products has the problem of unstable feeding: the conveying equipment in the feeding system, such as screws or pneumatic conveyors, may cause feeding interruptions due to wear or blockage, and different types of plastic particles may stick or agglomerate during the conveying process due to humidity and temperature factors, affecting fluidity.

[0003] In order to solve the above problems, this application proposes a continuous feeding method for plastic products. Summary of the invention

[0004] Based on the technical problems existing in the background technology, the present invention proposes a continuous feeding method for plastic products.

[0005] A continuous feeding method for plastic products proposed by the present invention comprises the following steps: Step 1: Intelligent material level monitoring: Install a highly sensitive material level sensor in the hopper to monitor material level changes in real time to ensure timely refilling; Step 2: Multi-channel feeding design: design multiple feeding channels to allow multiple materials to be fed simultaneously, avoiding feeding interruption caused by blockage of a single channel; Step 3: Vibrating feeding device: Install a vibrator at the bottom of the hopper to help the plastic particles flow smoothly and prevent the particles from sticking or agglomerating; Step 4: Automatic cleaning system: Set up an automatic cleaning device in the conveying pipeline to regularly remove residual materials to ensure smooth flow of the pipeline; Step 5: Feedback control system: Establish a feedback control system to automatically adjust the feeding speed according to the data of the material level sensor to ensure the uniformity of feeding; Step 6: Multiple silos are used for feeding in rotation. Multiple silos are designed to achieve continuous feeding by switching the feeding silos, thus avoiding downtime caused by emptying a single silo. Step 7: Temperature and humidity control: add temperature and humidity monitoring devices to the feeding system to ensure that the plastic particles are stored and transported in a suitable environment; Step 8: Emergency stop protection mechanism. Set up an emergency stop mechanism. When abnormal feeding is detected, the feeding will be automatically stopped and an alarm will be sounded to avoid damage to the equipment.

[0006] As a further optimization scheme of the present invention, the intelligent material level monitoring in step 1 includes: Install sensors: Install highly sensitive material level sensors in the hopper to monitor material level changes in real time; Data acquisition: The sensor transmits material level data to the control system for real-time analysis and adjustment; System response: When the material level is lower than the preset value, the system automatically triggers the refilling procedure.

[0007] As a further optimization scheme of the present invention, the multi-channel feeding design in step 2 includes: Design multiple channels: Design multiple feeding channels to allow multiple materials to be fed simultaneously; Channel management: Each channel is equipped with an independent control unit to ensure the flexibility and stability of feeding; Fault switching: When a channel is blocked, the system automatically switches to the backup channel to ensure uninterrupted feeding.

[0008] As a further optimization scheme of the present invention, the vibrating feeding device in step 3 comprises: Install vibrator: Install vibrator at the bottom of the hopper to help plastic pellets flow smoothly; Vibration control: adjust the vibration frequency and amplitude of the vibrator according to the flow properties of the material; Anti-caking: Vibration can reduce particle adhesion or agglomeration and maintain material fluidity.

[0009] As a further optimization solution of the present invention, the automatic cleaning system in step 4 includes: Set cleaning cycle: Set automatic cleaning device in the conveying pipeline to remove residual materials regularly; Cleaning execution: The automatic cleaning device starts at the preset time and removes residual materials by reverse conveying or vibration; Monitor cleaning results: Use sensors to monitor cleaning results to ensure that the pipeline is unobstructed.

[0010] As a further optimization solution of the present invention, the feedback control system in step 5 includes: Establish feedback mechanism: Establish feedback control system based on the data of material level sensor; Automatic adjustment of feeding speed: The system automatically adjusts the feeding speed according to the feedback data to ensure uniform feeding; Optimize feeding strategy: The system optimizes feeding strategy according to production requirements and raw material characteristics.

[0011] As a further optimization scheme of the present invention, the multi-bin rotation feeding in step 6 includes: Design multiple silos: Design multiple silos and achieve continuous feeding by switching the silos; Silo management: manage the feeding sequence and feeding amount of each silo through the control system; Automatic switching: When the material in one silo is exhausted, the system automatically switches to the next silo.

[0012] As a further optimization scheme of the present invention, the temperature and humidity control in step seven includes: Install temperature and humidity sensors: Add temperature and humidity monitoring devices to the feeding system; Environmental adjustment: According to the monitoring data, the temperature and humidity of the storage environment are automatically adjusted to meet the storage requirements of plastic particles; Protect materials: Ensure that plastic particles are stored and transported in a suitable environment to prevent changes in material properties due to environmental factors.

[0013] As a further optimization scheme of the present invention, the emergency shutdown protection mechanism in step eight includes: Set emergency stop conditions: preset emergency stop conditions in the control system, such as too low material level, too high temperature; Automatic shutdown: When abnormal feeding is detected, the system automatically stops feeding and triggers an alarm; Protect equipment: Avoid equipment damage caused by feeding problems through emergency shutdown protection mechanism.

[0014] The above technical solution of the present invention has the following beneficial technical effects: 1. Through intelligent material level monitoring and multi-channel feeding design, the system can monitor the material level in real time and replenish materials in time. At the same time, the multi-channel design allows automatic switching to the backup channel when a channel is blocked, thereby avoiding production stagnation caused by feeding interruption. This continuous and stable feeding method improves the production efficiency and stability of the injection molding process and reduces production delays and cost losses caused by feeding problems; 2. The introduction of the vibrating feeding device and the automatic cleaning system effectively prevents the adhesion or agglomeration of plastic particles, ensuring the fluidity and cleanliness of the material, which not only reduces the material waste caused by particle agglomeration, but also improves the utilization rate of the material. At the same time, the feedback control system automatically adjusts the feeding speed according to the data of the material level sensor, ensuring the uniformity of the feeding and further optimizing the utilization efficiency of the material; 3. The implementation of multi-bin rotation feeding and temperature and humidity control ensures that plastic particles are stored and transported in a suitable environment, avoiding changes in material properties due to environmental factors, thereby protecting the injection molding equipment and molds. The emergency shutdown protection mechanism can automatically stop feeding and alarm when abnormal feeding is detected, which not only protects the equipment from damage, but also ensures the safety of operators. These measures work together to enhance the safety and reliability of the entire feeding system, extend the service life of the equipment, and reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a flow chart of a method for continuous feeding of plastic products. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0017] like Figure 1 As shown, a continuous feeding method for plastic products proposed by the present invention comprises the following steps: Step 1: Intelligent material level monitoring: Install a highly sensitive material level sensor in the hopper to monitor material level changes in real time to ensure timely refilling; Step 2: Multi-channel feeding design: design multiple feeding channels to allow multiple materials to be fed simultaneously, avoiding feeding interruption caused by blockage of a single channel; Step 3: Vibrating feeding device: Install a vibrator at the bottom of the hopper to help the plastic particles flow smoothly and prevent the particles from sticking or agglomerating; Step 4: Automatic cleaning system: Set up an automatic cleaning device in the conveying pipeline to regularly remove residual materials to ensure smooth flow of the pipeline; Step 5: Feedback control system: Establish a feedback control system to automatically adjust the feeding speed according to the data of the material level sensor to ensure the uniformity of feeding; Step 6: Multiple silos are used for feeding in rotation. Multiple silos are designed to achieve continuous feeding by switching the feeding silos, thus avoiding downtime caused by emptying a single silo. Step 7: Temperature and humidity control: add temperature and humidity monitoring devices to the feeding system to ensure that the plastic particles are stored and transported in a suitable environment; Step 8: Emergency stop protection mechanism. Set up an emergency stop mechanism. When abnormal feeding is detected, the feeding will be automatically stopped and an alarm will be sounded to avoid damage to the equipment.

[0018] In a specific embodiment, the intelligent material level monitoring in step 1 includes: Install sensors: Install highly sensitive material level sensors in the hopper to monitor material level changes in real time; Data acquisition: The sensor transmits material level data to the control system for real-time analysis and adjustment; System response: When the material level is lower than the preset value, the system automatically triggers the refilling procedure.

[0019] The core of the intelligent material level monitoring system lies in highly sensitive material level sensors, which can monitor the material height in the hopper in real time and transmit data to the central control system. This monitoring technology can ensure that the system can respond and trigger the refilling program before the material level drops to the preset minimum. This automated monitoring and response mechanism reduces the need for manual monitoring, reduces the risk of production interruption caused by low material level, and improves production efficiency.

[0020] In a specific embodiment, the multi-channel feeding design in step 2 includes: Design multiple channels: Design multiple feeding channels to allow multiple materials to be fed simultaneously; Channel management: Each channel is equipped with an independent control unit to ensure the flexibility and stability of feeding; Fault switching: When a channel is blocked, the system automatically switches to the backup channel to ensure uninterrupted feeding.

[0021] The multi-channel feeding design improves the flexibility and reliability of the system by creating multiple independent feeding channels. Each channel is equipped with an independent control unit, so that even if a channel is blocked or fails, the system can automatically switch to the backup channel to ensure the continuity of feeding. This design not only improves the fault tolerance of the system, but also allows the simultaneous supply of multiple materials to meet complex production needs.

[0022] In a specific embodiment, the vibrating feeding device in step 3 includes: Install vibrator: Install vibrator at the bottom of the hopper to help plastic pellets flow smoothly; Vibration control: adjust the vibration frequency and amplitude of the vibrator according to the flow properties of the material; Anti-caking: Vibration can reduce particle adhesion or agglomeration and maintain material fluidity.

[0023] The vibrating feeding device promotes the flow of plastic particles by installing a vibrator at the bottom of the hopper. The vibrator can adjust the vibration frequency and amplitude according to the flow properties of the material, effectively preventing the particles from sticking or agglomerating due to factors such as humidity and temperature. This device improves the fluidity of the material, reduces feeding interruptions caused by material blockage, and ensures the uniformity and continuity of feeding.

[0024] In a specific embodiment, the automatic cleaning system in step 4 includes: Set cleaning cycle: Set automatic cleaning device in the conveying pipeline to remove residual materials regularly; Cleaning execution: The automatic cleaning device starts at the preset time and removes residual materials by reverse conveying or vibration; Monitor cleaning results: Use sensors to monitor cleaning results to ensure that the pipeline is unobstructed.

[0025] The automatic cleaning system sets an automatic cleaning device in the conveying pipeline to regularly remove residual materials and keep the pipeline unobstructed. This system can automatically start at a preset time and remove residual materials by reverse conveying or vibration. The automatic cleaning system not only reduces the need for manual cleaning, but also improves the cleanliness of the pipeline and reduces feeding problems caused by pipeline blockage.

[0026] In a specific embodiment, the feedback control system in step 5 includes: Establish feedback mechanism: Establish feedback control system based on the data of material level sensor; Automatic adjustment of feeding speed: The system automatically adjusts the feeding speed according to the feedback data to ensure uniform feeding; Optimize feeding strategy: The system optimizes feeding strategy according to production requirements and raw material characteristics.

[0027] The feedback control system uses the data collected by the material level sensor to automatically adjust the feeding speed to ensure the uniformity of the feeding. The system can optimize the feeding strategy and improve production efficiency based on real-time data and preset production needs. This closed-loop control system can quickly respond to changes in the production process, reduce human errors, and improve the level of production automation.

[0028] In a specific embodiment, the multi-bin rotation feeding in step 6 includes: Design multiple silos: Design multiple silos and achieve continuous feeding by switching the silos; Silo management: manage the feeding sequence and feeding amount of each silo through the control system; Automatic switching: When the material in one silo is exhausted, the system automatically switches to the next silo.

[0029] The multi-bin rotation feeding system realizes continuous feeding by designing multiple silos and managing the feeding sequence and feeding amount of each silo in the control system. When the material in one silo is exhausted, the system automatically switches to the next silo without manual intervention. This design improves the continuity and reliability of feeding and reduces downtime caused by empty silos.

[0030] In a specific embodiment, the temperature and humidity control in step seven includes: Install temperature and humidity sensors: Add temperature and humidity monitoring devices to the feeding system; Environmental adjustment: According to the monitoring data, the temperature and humidity of the storage environment are automatically adjusted to meet the storage requirements of plastic particles; Protect materials: Ensure that plastic particles are stored and transported in a suitable environment to prevent changes in material properties due to environmental factors.

[0031] The temperature and humidity control system automatically adjusts the temperature and humidity of the storage environment to meet the storage requirements of plastic particles by adding a temperature and humidity monitoring device to the feeding system. This system can protect the material from environmental factors, prevent changes in material properties due to humidity and temperature changes, and ensure that the material is processed in the best condition.

[0032] In a specific embodiment, the emergency shutdown protection mechanism in step eight includes: Set emergency stop conditions: preset emergency stop conditions in the control system, such as too low material level, too high temperature; Automatic shutdown: When abnormal feeding is detected, the system automatically stops feeding and triggers an alarm; Protect equipment: Avoid equipment damage caused by feeding problems through emergency shutdown protection mechanism.

[0033] The emergency shutdown protection mechanism presets emergency shutdown conditions in the control system, such as low material level and high temperature. When abnormal feeding is detected, the system automatically stops feeding and triggers an alarm to protect the equipment from damage. This mechanism improves the safety of the system and reduces equipment failures and production accidents caused by feeding problems.

[0034] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A method for continuous feeding of plastic products, characterized in that: The following steps are involved: Step 1: Intelligent material level monitoring: Install a highly sensitive material level sensor in the hopper to monitor material level changes in real time to ensure timely refilling; Step 2: Multi-channel feeding design: design multiple feeding channels to allow multiple materials to be fed simultaneously, avoiding feeding interruption caused by blockage of a single channel; Step 3: Vibrating feeding device: Install a vibrator at the bottom of the hopper to help the plastic particles flow smoothly and prevent the particles from sticking or agglomerating; Step 4: Automatic cleaning system: Set up an automatic cleaning device in the conveying pipeline to regularly remove residual materials to ensure smooth flow of the pipeline; Step 5: Feedback control system: Establish a feedback control system to automatically adjust the feeding speed according to the data of the material level sensor to ensure the uniformity of feeding; Step 6: Multiple silos are used for feeding in rotation. Multiple silos are designed to achieve continuous feeding by switching the feeding silos, thus avoiding downtime caused by emptying a single silo. Step 7: Temperature and humidity control: add temperature and humidity monitoring devices to the feeding system to ensure that the plastic particles are stored and transported in a suitable environment; Step 8: Emergency stop protection mechanism. Set up an emergency stop mechanism. When abnormal feeding is detected, the feeding will be automatically stopped and an alarm will be sounded to avoid damage to the equipment.

2. A method for continuously feeding plastic products according to claim 1, characterized in that: The intelligent material level monitoring in step 1 includes: Install sensors: Install highly sensitive material level sensors in the hopper to monitor material level changes in real time; Data acquisition: The sensor transmits material level data to the control system for real-time analysis and adjustment; System response: When the material level is lower than the preset value, the system automatically triggers the refilling procedure.

3. A method for continuously feeding plastic products according to claim 2, characterized in that: The multi-channel feeding design in step 2 includes: Design multiple channels: Design multiple feeding channels to allow multiple materials to be fed simultaneously; Channel management: Each channel is equipped with an independent control unit to ensure the flexibility and stability of feeding; Fault switching: When a channel is blocked, the system automatically switches to the backup channel to ensure uninterrupted feeding.

4. A method for continuously feeding plastic products according to claim 3, characterized in that: The vibrating feeding device in step 3 comprises: Install vibrator: Install vibrator at the bottom of the hopper to help plastic pellets flow smoothly; Vibration control: adjust the vibration frequency and amplitude of the vibrator according to the flow properties of the material; Anti-caking: Vibration can reduce particle adhesion or agglomeration and maintain material fluidity.

5. A method for continuously feeding plastic products according to claim 4, characterized in that: The automatic cleaning system in step 4 includes: Set cleaning cycle: Set automatic cleaning device in the conveying pipeline to remove residual materials regularly; Cleaning execution: The automatic cleaning device starts at the preset time and removes residual materials by reverse conveying or vibration; Monitor cleaning results: Use sensors to monitor cleaning results to ensure that the pipeline is unobstructed.

6. A method for continuously feeding plastic products according to claim 5, characterized in that: The feedback control system in step 5 includes: Establish feedback mechanism: Establish feedback control system based on the data of material level sensor; Automatic adjustment of feeding speed: The system automatically adjusts the feeding speed according to the feedback data to ensure uniform feeding; Optimize feeding strategy: The system optimizes feeding strategy according to production requirements and raw material characteristics.

7. A method for continuously feeding plastic products according to claim 6, characterized in that: The multi-bin rotation feeding in step 6 includes: Design multiple silos: Design multiple silos and achieve continuous feeding by switching the silos; Silo management: manage the feeding sequence and feeding amount of each silo through the control system; Automatic switching: When the material in one silo is exhausted, the system automatically switches to the next silo.

8. A method for continuously feeding plastic products according to claim 7, characterized in that: The temperature and humidity control in step seven includes: Install temperature and humidity sensors: Add temperature and humidity monitoring devices to the feeding system; Environmental adjustment: According to the monitoring data, the temperature and humidity of the storage environment are automatically adjusted to meet the storage requirements of plastic particles; Protect materials: Ensure that plastic particles are stored and transported in a suitable environment to prevent changes in material properties due to environmental factors.

9. A method for continuously feeding plastic products according to claim 8, characterized in that: The emergency shutdown protection mechanism in step eight includes: Set emergency stop conditions: preset emergency stop conditions in the control system, such as too low material level, too high temperature; Automatic shutdown: When abnormal feeding is detected, the system automatically stops feeding and triggers an alarm; Protect equipment: Avoid equipment damage caused by feeding problems through emergency shutdown protection mechanism.

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