Professional Semi-automatic Weighing System

Reasonable whole-process automation technology can increase productivity and reduce the total number of operators. Independent innovation of the automated technology md5 verification or order information picking means that the operator only needs to carry out actual operations when the collection box is replaced, saving a lot of time and human resources. Automatic weighing technology can reduce labor costs and time for transporting components. Guangdong kenweigh automatic technology automatic checkweigher can carry out checkweighing, weighing and counting. In addition, software tools and data input/output (I/O) data signals are presented, which is beneficial to free employees from the continuous increase in labor. Typical automation technology sets the consistent operation of counting or check weighing and order information picking is generally carried out on the production machine. This generally involves a certain level of automation technology, and is equipped with weighing terminal equipment and interconnected with one or two weighing service platforms. The use of Guangdong kenweigh automation technology compact counting scale can activate automatic checkweighing or add to the overall target net weight function, so that the terminal equipment can check the total number of components according to the overall target net weight. When the target net weight is achieved, the terminal device pushes the data signal according to the data output to facilitate the migration of the raw material flow to the second collection box. No need for all operators to interfere. The jack promotes the automatic technology feature, alarm and other data signals are completed according to an optional data I/O jack. The jack can cause 12VDC output to manipulate the external alarm or collection box booster. There are 4 available output ports that can be used to push electronic information from the counting scale to the programmable logic control board. Similarly, the key entry can also allow commands to enter the counting scale for critical daily tasks such as tare or reset. The external light alarm informs the operator to dismantle and replace the full collection box. As everyone knows, the actual operation of dismantling and replacing the collection box can be fully automated by the booster. Afterwards, copy out the text document identification, time, time, total number of components and other related identifiers to record the added shipping box, so as to improve the traceability and facilitate the financial audit. The checkweigher is not the same as the new item. When checking the module, the module should contain different components, such as sensors, spare parts and instructions for use. The checkweigher machine is consistent with the packaging of the scale according to the conveyor belt installed on the scale Automatically carry out automatic checkweighing. The automatic checkweigher machine carries out a net weight inspection based on the overall target net weight. If the product is within the error value range, the module will be transferred to the left and loaded into the shipping box. If the error value is exceeded, the automatic checkweigher machine booster will carry out express sorting to the waste collection box. The competitive advantage of Guangdong kenweigh automation company is to customize the automatic checkweigher that fits the actual production line for you. Everyone will show the product information to the willing customers to understand the product in depth, and the technical engineer will give you a tailor-made modification plan and after-sales maintenance. The service is good, the entire equipment has a one-year warranty period, on-site service installation and adjustment, and for the first time, there will be free skills training on how to actually operate and maintain the net weight sorting machine.
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The weighing machine is a sorting equipment in the production workshop. The accuracy requirement is very important. So what is the accuracy of the weighing machine? What functions can the accurate weighing machine achieve? Let's take a look now! When the inspected product enters the checkweigher machine from the assembly line, it is transported to the weighing section through the acceleration section; during the movement of the inspected product in the weighing section, the sensor deforms under the action of gravity, prompting its impedance to change, and output a Analog signal; output to the weighing module analog-to-digital converter through the amplifying circuit, and quickly converted into a digital signal, transmitted to the weighing module processor, and calculated by the weighing algorithm independently developed by our company; weighing module processing The processor amplifies and recognizes the weight signal. If the weight of the product exceeds the preset upper and lower limit values, the processor will output a rejection command to the rejection device on the rejection section to remove the unqualified products from the rejection section. The scale that we often see in the market for weighing dishes is called a static scale, and the scale used on the conveyor line is generally a dynamic scale. The so-called dynamic scale means that the weight of the goods can be weighed during the walking process. Then, this kind of scale Can we only weigh the weight of the goods? Are there any other functions? 1. Check weighing. Checkweighing is actually a judging process, which is to check whether the item meets the required weight. When the weighed product does not meet the set weight requirement, the equipment will proceed to the next step instead of conveying the unqualified product to the next Work link. This is another big advantage of the dynamic weighing machine. 2. Alarm or reject. When the equipment detects that the item does not meet the required weight, the equipment can automatically remove the product from the production line, which requires its supporting equipment, a rejection machine. If the customer does not want to use the rejector, then you can choose to let the weighing machine automatically alarm and shut down. 3. The weighing data can be memorized. The data weighing machine for each batch of weighing can be memorized, and it can be exported if it needs to be exported. If signal transmission and interaction are required, the dynamic weighing machine can be realized. Therefore, the equipment can be used as a stand-alone machine or in conjunction with an automated assembly line to realize unmanned operation. Of course, the conveyor power part of the weighing machine can be belt type or roller type. The minimum scale value and accuracy of the checkweighing can be required according to the actual situation of the user. It is not necessary to purchase high-precision ones, so the price will be very high. high. The above is what the editor shared today, I hope it will be helpful to everyone.
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The digital display weighing instrument designed in the article is a weighing control display device based on a resistor strain force sensor and a single-chip microcomputer design. The detection range is 0-10kg, the measurement accuracy is ±2g, and the LCD display shows accurate information. Measurement data information, in addition, several accurate measurement data information can be sent to the electronic computer to display information according to the serial port. The system software has the characteristics of high precision, stable characteristics, and simple actual operation. The frame diagram of the weighing instrument design scheme is shown in Figure 1 below: 1. Hardware configuration circuit principle 1.1. Load cell resistor strain force type load cell consists of resistance strain gauges, polyurethane elastomers and inspection power supply circuits. Part of the composition. The polyurethane elastomer causes elastic deformation under external force, and the resistance strain gage attached to its surface also causes deformation. After the resistance strain gage is deformed, its resistance value will change (expand or decrease), and then be relatively accurately measured The power circuit transforms this resistor into an electronic signal (working voltage or current), and then completes the whole process of converting the external force into an electronic signal. Check the power supply circuit as shown in Figure 2, and change the resistor of the resistance strain gauge into a working voltage output. Because the Wheatstone bridge has many advantages, such as the ability to suppress the hazards of temperature transitions, the ability to suppress the influence of lateral forces, and the ability to more easily deal with the compensation problem of the weighing sensor, the Wheatstone bridge has gained the advantage of the weighing sensor. Universal use. The load cell generally has a total of four output wires. The output resistance is generally 350Ω, 480Ω, 700Ω, 1000Ω. The input terminal will generally carry out some temperature and sensitivity compensation. The input terminal resistor will be 20-100Ω higher than the output terminal. The output terminal can be distinguished by measuring the resistance value with a digital multimeter. 1.2. The output data signal of the strain force type load cell of the amplifier circuit is not strong (mV or even μV heavyweight), and there is often a lot of noise along with it. For such data signals, the first step in the power supply circuit is generally to select an instrumentation amplifier to first increase the small data signal. The instrumentation amplifier power circuit has a stronger common-mode rejection capability than a simple differential signal amplifying circuit. The most important purpose of increasing is not the gain value, but only to improve the frequency stability of the power supply circuit. In this design, the instrumentation amplifier uses the OP07 three operational amplifier structure. As shown in Figure 3 diagram. When R1u003dR2, R3u003dR4, Rfu003dR5, the gain value of the power supply circuit is: Gu003d(1+2R1/RG1)(Rf/R3). It can be seen from the formula calculation that the adjustment of the gain value of the power supply circuit can be completed by changing the resistance value of RG1. 1.3. A/D conversion power supply circuit The A/D converter selects the electronic scale dedicated integrated icHX711, which is a 24-bit A/D converter integrated ic designed for high-precision electronic scales. Compared with other integrated ICs of the same type, this integrated IC integrates the peripheral circuits necessary for other integrated ICs of the same type, such as an adjustable regulated power supply, an on-chip clock and watch oscillator. Enter the switch to select safe channel A or safe channel B at will, and the internal low-noise program controller amplifier between the two is connected. The gain value of the program controller of the safety channel A is 128 or 64, and the corresponding full credit differential signal input data signal amplitude value is each ±20m

In the daily processing process, the factory will choose to use suitable machines for daily processing. At the same time, after completing the daily processing, the factory will choose to use the batching system to carry out the necessary batching, packaging and other processes for the product, so that it can provide the factory with a comprehensive batching system solution. The material will enter the machine's feed pump from the professional channel, and the operator will select the appropriate batching program for the machine through the programmable control system. Then, the machine will start the daily batching work. And when the weight in the package meets the ingredient standard, the machine will carry out the necessary sealing work, thereby reducing its pollution to the environment. At the same time, with the continuous advancement and improvement of technology, the machine can accurately distribute the control and integrated barcodes. And upon request, necessary improvements such as batch number and ingredient quality control can be made to achieve full product traceability. And can greatly improve the ergonomics. to reduce harm to employees.