Automatic feeding high-precision screening direct package system

Abstract

The invention discloses an automatic feeding high-precision screening and direct packaging system, belongs to the technical field of material processing and packaging, and aims to solve the problems that materials are prone to being affected by environmental factors in the storage process, so that the materials are caked, deteriorated, oxidized and the like, the production efficiency is low, and the packaging precision is low. The device comprises a vacuum conveying module, a material storage metering module, a spiral feeding module, a screening module, a packaging module and a control module, through continuous operation of vacuum conveying, spiral feeding, screening and packaging, screened materials can be directly packaged, intermediate storage equipment is not needed, and the production efficiency is improved. The conditions of caking, oxidation, moisture absorption and density change of the materials caused by environmental factors in the storage process are avoided, and the stability of the product quality is effectively guaranteed.

Description

Technical Field

[0001] This invention relates to the field of material processing and packaging technology, specifically to an automatic feeding, high-precision screening, and direct packaging system. Background Technology

[0002] In many industries such as chemical, food, pharmaceutical, and building materials, material processing usually includes two key steps: screening and packaging. In the existing technology, the screened materials often need to be transported to a special storage device for temporary storage. After a certain amount has been stored, the materials are taken out of the storage device by a conveying device and packaged.

[0003] Although the segmented operation method described above has been widely used in various fields, it still has many shortcomings, as follows: Currently, the screened materials must be stored before packaging, which makes them susceptible to environmental factors during storage, leading to clumping, deterioration, and oxidation. In addition, fine powder materials may experience density changes due to compression and sedimentation during storage, which in turn affects the uniformity of subsequent packaging.

[0004] The segmented operation mentioned above increases the material transfer process, which not only prolongs the production cycle but also reduces production efficiency and may cause material loss and pollution during the transfer process. Furthermore, the precision of existing packaging processes is low, usually only achieving an error range of 1% to 5%, which is difficult to meet the requirements of high-precision production.

[0005] To address the above issues, an automatic feeding, high-precision screening, and direct packaging system is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide an automatic feeding, high-precision screening, and direct packaging system. By using this system, the problems mentioned above, such as the susceptibility of materials to environmental factors during storage, leading to clumping, deterioration, oxidation, low production efficiency, and low packaging accuracy, are solved.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an automatic feeding high-precision screening and direct packaging system, comprising a vacuum conveying module, a storage and metering module, a screw feeding module, a screening module, a packaging module, and a control module. The discharge end of the vacuum conveying module is connected to the feed end of the storage and metering module, and the discharge end of the storage and metering module is connected to the feed end of the screw feeding module. The discharge end of the screw feeding module faces the feed end of the screening module, and the discharge end of the screening module corresponds to the feed end of the packaging module. The control module is electrically connected to the vacuum conveying module, the storage and metering module, the screw feeding module, the screening module, and the packaging module.

[0008] Furthermore, the material storage and metering module includes a storage tank and a weight sensor. The weight sensor is fixedly installed at the bottom of the storage tank to detect the weight data of the material in the storage tank in real time and feed the data back to the control module.

[0009] Furthermore, the screw feeding module includes a screw conveyor, a drive motor, and a speed regulator. The drive motor is connected to the input end of the screw conveyor for transmission. The speed regulator is electrically connected to both the drive motor and the control module. The control module adjusts the speed of the drive motor through the speed regulator, thereby controlling the feeding rate of the screw conveyor.

[0010] Furthermore, the screening module includes a screening machine, a vibrating motor, and a screen. The vibrating motor is located on the side of the screening machine, the screen is located inside the screening machine, the feed inlet of the screening machine is located at the top, the discharge outlet of the screening machine is located at the bottom, and the discharge outlet of the screening machine is located directly above the packaging module.

[0011] Furthermore, the packaging module includes a packaging drum, a weighing device, and a limiting mechanism. The weighing device is located at the bottom of the packaging drum and is used to detect the weight of the material inside the packaging drum in real time. The limiting mechanism is used to position the packaging drum to prevent it from shifting during the packaging process. The weighing device is electrically connected to the control module.

[0012] Furthermore, the vacuum conveying module includes a vacuum pump, a conveying pipeline, and a feeding hopper. One end of the conveying pipeline is connected to the feeding hopper, and the other end of the conveying pipeline is connected to the feeding end of the material storage and metering module. The vacuum pump is connected to the conveying pipeline to provide vacuum power for material conveying, and the vacuum pump is electrically connected to the control module.

[0013] Furthermore, the control module includes a controller, a touch screen display, and an alarm unit. The controller is electrically connected to the vacuum conveying module, the material storage and metering module, the screw feeding module, the screening module, and the packaging module, respectively. The touch screen display is used for parameter setting and operating status display, and the alarm unit is used to issue warning signals when the system malfunctions.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention enables the direct packaging of screened materials through continuous operation of vacuum conveying, screw feeding, screening, and packaging, eliminating the need for intermediate storage equipment. This avoids the clumping, oxidation, moisture absorption, and density changes caused by environmental factors during storage, effectively ensuring the stability of product quality. It is especially suitable for industries sensitive to material characteristics.

[0015] 2. This invention employs multiple high-precision measurement and control methods. The weight sensor of the storage tank and the weighing device of the packaging barrel both use high-precision sensors, giving them high measurement accuracy. At the same time, the control module in this invention, through dynamic compensation algorithms and two-stage feeding control of "coarse feeding" and "fine feeding", can effectively eliminate the impact of material falling and feeding rate fluctuations on packaging accuracy, thereby making the packaging accuracy far higher than the accuracy level of existing technologies and meeting the needs of high-precision packaging.

[0016] 3. This invention achieves fully automated control of the entire process from material conveying, feeding, screening to packaging, without the need for manual intervention in intermediate links. Only operators are required to set parameters and change packaging barrels, which greatly reduces labor costs and human error. At the same time, the continuous operation mode in this invention also eliminates the time for material storage and secondary transfer, and significantly improves production efficiency.

[0017] 4. Compared with traditional mechanical conveying methods, the vacuum conveying method in this invention has lower energy consumption and no dust, which meets environmental protection requirements; and the continuous operation can reduce material loss during transfer and storage, thereby reducing production costs. Attached Figure Description

[0018] Figure 1 This is a system flowchart of the present invention; Figure 2 This is a side view of the overall structure of the present invention; Figure 3 This is a three-dimensional view of the overall structure of the present invention.

[0019] In the diagram: 1. Vacuum conveying module; 2. Material storage and metering module; 3. Screw feeding module; 4. Screening module; 5. Packaging module. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] To address the issues of material susceptibility to environmental factors during storage, leading to clumping, deterioration, and oxidation, as well as low production efficiency and packaging precision, please refer to [link to relevant documentation]. Figures 1-3 As shown, the present invention adopts the following technical solution: An automatic feeding, high-precision screening, and direct packaging system includes a vacuum conveying module 1, a material storage and metering module 2, a screw feeding module 3, a screening module 4, a packaging module 5, and a control module. Through the coordinated operation of the various modules in this invention, the system can complete the automatic feeding, accurate metering, uniform feeding, efficient screening, and high-precision packaging of materials.

[0022] Vacuum delivery module 1, the specific process is as follows: Vacuum conveying module 1 includes a vacuum pump, a conveying pipeline, and a feeding hopper. Vacuum conveying module 1 is used to convey materials to be processed to storage and metering module 2. The feeding hopper is used to hold the materials to be conveyed. One end of the conveying pipeline is sealed to the feeding hopper, and the other end of the conveying pipeline is sealed to the inlet end of the storage tank of storage and metering module 2 to ensure that there is no material leakage or air entry during the conveying process. Then, the vacuum pump is connected to the conveying pipeline. The vacuum pump is started to extract the air in the conveying pipeline and create a negative pressure environment. The material in the feeding hopper is conveyed to the storage tank along the conveying pipeline using the air pressure difference. The vacuum pump is electrically connected to the control module, which can control the start, stop, and operating power of the vacuum pump to adapt to the conveying requirements of different materials.

[0023] The vacuum conveying method adopted in this invention has the advantages of stable conveying, no dust pollution and low material loss. It is especially suitable for conveying fine powders and easily dusty materials. It can effectively protect the material properties and avoid material deterioration or change of properties due to friction and collision during the conveying process. At the same time, the sealed conveying structure can also prevent the external environment from contaminating the material, thereby ensuring the purity of the material.

[0024] The specific process for storage metering module 2 is as follows: The material storage and metering module 2 includes a storage tank and a weight sensor. The storage tank is located on top of the screening module 4 and is used to temporarily store the material conveyed by the vacuum conveying module 1. Its volume is reasonably designed according to the production scale and the processing capacity of the screening module 4. It can not only ensure a continuous supply of material to the screening module 4, but also avoid production interruptions caused by frequent feeding. The weight sensor is located at the bottom of the storage tank. A high-precision pressure weight sensor is preferred. It is used to monitor the weight data of the material in the storage tank in real time and convert the detected weight data into an electrical signal to feed back to the control module.

[0025] Based on data from the weight sensor, the control module determines the material level in the storage tank. When the material level falls below a preset lower limit, the control module activates a vacuum pump to replenish the tank. When the material level reaches a preset upper limit, the control module stops the vacuum pump to prevent overflow or blockage caused by excessive material in the tank. This closed-loop control not only enables automatic material replenishment but also ensures a consistent level of material in the storage tank, guaranteeing stable feeding and screening operations.

[0026] The specific process of spiral feeding module 3 is as follows: The screw feeding module 3 includes a screw conveyor, a drive motor, and a speed controller. The feed end of the screw conveyor is connected to the discharge end of the storage tank, while the discharge end of the screw conveyor faces the feed inlet of the screening module 4. The drive motor is connected to the input end of the screw conveyor via a coupling to provide power output for the operation of the screw conveyor. The speed controller is electrically connected to the drive motor and also electrically connected to the control module. The control module can adjust the speed of the drive motor through the speed controller, thereby controlling the speed of the screw blades of the screw conveyor to achieve precise adjustment of the feeding rate.

[0027] When the weight sensor at the bottom of the storage tank detects material inside, the control module automatically starts the screw feeding module 3, which drives the motor to rotate the screw blades, uniformly and continuously conveying the material in the storage tank to the feed inlet of the screening module 4. The screw feeding method adopted in this invention has the characteristics of stable feeding, good uniformity, and strong controllability. It can not only avoid problems such as material bridging and blockage, but also ensure a stable supply of material to the screening module 4, thereby improving screening efficiency and screening quality. At the same time, by adjusting the feeding rate through the control module, it can be adapted to the processing capacity of different screening modules 4 and the screening requirements of different materials, thus enhancing the versatility of the system.

[0028] The specific process of screening module 4 is as follows: The screening module 4 includes a screening machine, a vibrating motor, and a screen. The screening machine is located below the storage tank and above the packaging module 5. The feed inlet at the top of the screening machine corresponds to the discharge end of the screw conveyor, and the discharge outlet at the bottom of the screening machine corresponds to the packaging barrel of the packaging module 5. The vibrating motor is located on the side of the screening machine and is fixed with bolts. The high-frequency vibration generated after the vibrating motor is started can drive the entire screening machine to vibrate, so that the material entering the screening machine reciprocates on the screen, thereby realizing the grading and screening of the material.

[0029] The screen adopts a detachable installation structure, fixed inside the screening machine by slots or bolts, making it easy to replace screens of different mesh sizes according to the particle size requirements of the material, thereby improving the system's adaptability. The screen material can be selected according to the material characteristics; for example, stainless steel can be used for corrosive materials, and wear-resistant alloy can be used for high-hardness materials, extending the screen's service life. During the screening process, materials that meet the particle size requirements fall through the screen from the discharge port into the packaging barrel below, while impurities or coarse particles that do not meet the particle size requirements remain on the screen. After the screening operation is completed, the screen can be disassembled for cleaning, ensuring the continued stable operation of the screening machine.

[0030] The vibration frequency and amplitude of the vibratory motor can be adjusted through the control module to adapt to the screening characteristics of different materials. For example, for materials with high viscosity, the vibration frequency and amplitude can be increased to prevent the material from sticking to the screen and ensure smooth screening. For materials with finer particles, the vibration frequency can be appropriately reduced to avoid excessive material flying and resulting loss.

[0031] Packaging module 5, the specific process is as follows: The packaging module 5 includes a packaging drum, a weighing device, and a limiting mechanism. The packaging drum is placed on the weighing device, which uses a high-precision pressure sensor with a measurement accuracy of no less than 0.1%. This sensor is used to detect the weight of the material inside the packaging drum in real time and feeds the weight data back to the control module. The limiting mechanism is set around the weighing device and uses an adjustable stop block structure. It can be positioned according to the size of the packaging drum to prevent the packaging drum from shifting due to material impact or vibration during the packaging process, thus ensuring that the material falls accurately into the packaging drum.

[0032] When the screened material falls into the packaging barrel, the weighing device provides real-time weight data, and the control module monitors and analyzes the weight data in real time. When the weight of the material in the packaging barrel reaches the preset packaging weight, the control module immediately sends a control signal, causing the screw feeding module 3 and the screening module 4 to stop operating in sequence, and simultaneously controlling the vacuum conveying module 1 to pause feeding, thus completing one packaging operation. After the packaging operation is completed, the operator removes the packaging barrel filled with material, replaces it with an empty packaging barrel, and then restarts the system through the control module to carry out the next round of packaging operations.

[0033] To further improve packaging accuracy, the weighing device adopts a dynamic compensation algorithm, which can compensate and correct the impact force during the material falling process to ensure the accuracy of weight detection. At the same time, the control module can adjust the feeding rate of the screw feeding module 3 in advance according to the rate of weight change during the packaging process. For example, when the weight is close to the preset value, the feeding rate is reduced to realize two-stage feeding of "coarse feeding-fine feeding" to further improve packaging accuracy.

[0034] The control module's specific process is as follows: The control module includes a controller, a touch screen display, and an alarm unit. The controller adopts a PLC programmable logic controller, which has powerful logic operation and signal processing capabilities. It can interact and control various electrical components in the vacuum conveying module 1, the storage and metering module 2, the screw feeder module 3, the screening module 4, and the packaging module 5. The touch screen display is an industrial-grade touch screen installed on the system's operation panel. Operators can set parameters through the touch screen display, such as the upper and lower limits of material weight in the storage tank, packaging weight, screw feeder rate, and vibration motor frequency. At the same time, the touch screen display can also view the operating status of each module in real time, such as the vacuum pump operating status, the material weight in the storage tank, the material weight in the packaging barrel, and the screening machine operating status, so as to have real-time control of the entire system.

[0035] The alarm unit includes an audible and visual alarm. When the system malfunctions, such as insufficient material in the storage tank and the vacuum conveying module 1 failing to feed material normally, the weight of the packaging barrel exceeding the error range, blockage of the screening machine, or motor failure, the controller will trigger the alarm unit to issue an audible and visual warning signal. At the same time, the fault type and fault location will be displayed on the touch screen, which will facilitate timely troubleshooting and handling by the operators to ensure the safe and stable operation of the system.

[0036] The control module also has data storage and query functions, which can record relevant data for each packaging operation, such as packaging time, packaging weight, and operating parameters, making it convenient for operators to perform production statistics and quality traceability. At the same time, the control module also supports remote communication functions, which can be connected to the factory's central control system via Ethernet or wireless communication to achieve remote monitoring and control, further improving the convenience of production management.

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

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding, high-precision screening, direct packaging system, characterized in that, The system includes a vacuum conveying module (1), a storage and metering module (2), a screw feeder module (3), a screening module (4), a packaging module (5), and a control module. The discharge end of the vacuum conveying module (1) is connected to the feed end of the storage and metering module (2). The discharge end of the storage and metering module (2) is connected to the feed end of the screw feeder module (3). The discharge end of the screw feeder module (3) faces the feed end of the screening module (4). The discharge end of the screening module (4) corresponds to the feed end of the packaging module (5). The control module is electrically connected to the vacuum conveying module (1), the storage and metering module (2), the screw feeder module (3), the screening module (4), and the packaging module (5).

2. The automatic feeding high-precision screening direct packaging system according to claim 1, characterized in that: The material metering module (2) includes a storage tank and a weight sensor. The weight sensor is fixedly installed at the bottom of the storage tank to detect the weight data of the material in the storage tank in real time and feed the data back to the control module.

3. The automatic feeding high-precision screening direct packaging system according to claim 2, characterized in that: The screw feeding module (3) includes a screw conveyor, a drive motor and a speed regulator. The drive motor is connected to the input end of the screw conveyor. The speed regulator is electrically connected to the drive motor and the control module respectively. The control module adjusts the speed of the drive motor through the speed regulator, thereby controlling the feeding rate of the screw conveyor.

4. The automatic feeding high-precision screening direct packaging system according to claim 3, characterized in that: The screening module (4) includes a screening machine, a vibrating motor and a screen. The vibrating motor is located on the side of the screening machine, the screen is located inside the screening machine, the feed inlet of the screening machine is located at the top, the discharge outlet of the screening machine is located at the bottom, and the discharge outlet of the screening machine is located directly above the packaging module (5).

5. The automatic feeding high-precision screening direct packaging system according to claim 4, characterized in that: The packaging module (5) includes a packaging barrel, a weighing device and a limiting mechanism. The weighing device is located at the bottom of the packaging barrel and is used to detect the weight of the material inside the packaging barrel in real time. The limiting mechanism is used to position the packaging barrel to prevent it from shifting during the packaging process. The weighing device is electrically connected to the control module.

6. The automatic feeding high-precision screening direct packaging system according to claim 5, characterized in that: The vacuum conveying module (1) includes a vacuum pump, a conveying pipe and a feeding hopper. One end of the conveying pipe is connected to the feeding hopper, and the other end of the conveying pipe is connected to the feeding end of the storage metering module (2). The vacuum pump is connected to the conveying pipe to provide vacuum power for material conveying, and the vacuum pump is electrically connected to the control module.

7. The automatic feeding high-precision screening direct packaging system according to claim 6, characterized in that: The control module includes a controller, a touch screen and an alarm unit. The controller is electrically connected to the vacuum conveying module (1), the material storage and metering module (2), the screw feeding module (3), the screening module (4) and the packaging module (5). The touch screen is used for parameter setting and operation status display. The alarm unit is used to issue a warning signal when the system malfunctions.

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