In the world of food packaging, accuracy, speed, and efficiency are crucial elements for success. To meet these demands, the industry has witnessed the rise of a remarkable technology called the Multihead Weigher. It has revolutionized the way products are weighed and packaged, offering unparalleled precision and productivity. In this blog post, we will delve into the workings of multihead weighers and explore their impact on the food packaging industry.

What is a Multihead Weigher?

A Multihead Weigher is a cutting-edge weighing system that employs advanced technology to accurately measure and distribute a wide variety of food products. It consists of several independent weighing heads, each equipped with its own load cell. These heads work together in synchronization, allowing for high-speed weighing and packaging operations.

How does it work?

The multihead weigher operates through a three-step process: weighing, calculation, and distribution. First, the product is fed into the multihead weigher, where it is divided into individual portions by the weighing heads. Each head simultaneously measures the weight of its designated portion using load cells and sends the data to a central processing unit.

Next, the central processing unit calculates the optimal combination of portions to achieve the desired target weight. It configures the distribution paths to ensure the accurate allocation of portions, taking into account factors such as the characteristics of the product and the packaging requirements.

Finally, the calculated portions are distributed to the packaging machine, which fills the individual packages rapidly and precisely. This seamless process ensures that each package contains the correct weight, minimizing product giveaway and maximizing efficiency.

Advantages of Multihead Weighers:

Precision: Multihead weighers are renowned for their exceptional accuracy, even with complex products like mixed nuts, snacks, or frozen foods. This accuracy results in consistent product quality and customer satisfaction.

Efficiency: With their high-speed weighing capabilities, multihead weighers significantly increase productivity. They can handle large volumes of product, reducing production time and labor costs.

Versatility: Multihead weighers are adaptable to various food product types, sizes, and shapes. They can handle both dry and wet products, making them suitable for a wide range of applications in the food packaging industry.

Hygiene and Food Safety: Multihead weighers are designed with food safety in mind. They feature smooth surfaces and removable parts for easy cleaning, promoting hygiene standards and reducing the risk of contamination.

Impacts on the Food Packaging Industry:

The integration of multihead weighers has had a transformative effect on the food packaging industry. It has brought about increased operational efficiency, improved packaging quality, and reduced product waste. The precise weighing and distribution capabilities of multihead weighers have also enabled manufacturers to meet stringent regulatory requirements and maintain compliance with industry standards.

Furthermore, the automation and speed provided by multihead weighers have facilitated streamlined production processes. This has allowed companies to scale their operations, penetrate new markets, and meet the growing demand for packaged food products.

Conclusion:

The advent of multihead weighers has revolutionized the food packaging industry, offering unparalleled accuracy, efficiency, and versatility. As technology continues to advance, we can expect further enhancements in multihead weighers' capabilities, enabling manufacturers to meet evolving consumer demands and achieve greater success in the competitive market.

Whether it's ensuring the consistent weight of a bag of chips or accurately portioning delicate confectionery treats, multihead weighers will continue to play a crucial role in the future of food packaging.

1. Glue leakage at the Hot melt gluing nozzle 

If glue leaks from the nozzle during glue spraying, the possible reasons are as follows:

a. The temperature of the glue gun is not enough. The temperature of the hot melt glue gun should be increased appropriately.

b. If the pressure or flow rate of the air jet is too small, glue will drip from the nozzle. Increase the pressure of the air blowing pipe appropriately.

c. If the air passage in the nozzle is blocked, remove the nozzle module and clean it.

2. If glue leaks from the nozzle when the machine is not spraying glue, the possible reasons are as follows:

a. The thimble does not completely close the glue channel, and it is necessary to increase the pressure on the air channel of the solenoid valve of the glue gun.

b. The ejector pin is damaged and needs to be replaced.

c. The ejector pin and the outlet of the glue channel do not cooperate well. Adjust the fine-tuning bolt on the ejector pin to press down on the ejector pin and then loosen the bolt. Manually operate the solenoid valve on the glue gun several times.

3. The small hole in the middle of the needle valve leaks glue.

a. The sealing ring underneath the needle valve needs to be replaced.

Generally, after half a year or a year of use, the glue pipeline of the PUR hot melt adhesive machine needs to be cleaned and maintained.

What are the advantages of regular maintenance?

It can increase the fluidity of glue and improve the glue effect.

1. Ensure the quality of PUR hot melt adhesive

Clean pipes can prevent PUR hot melt adhesive from remaining, solidifying or deteriorating in the pipes, ensuring that the PUR hot melt adhesive is fresh every time it is used. This is particularly important for application scenarios that require high-precision bonding to ensure the stability of product quality.

2. Improve production efficiency

Pipe cleaning can avoid production interruptions due to blockages and reduce downtime. The smooth glue feeding process can ensure the continuous operation of the production line and improve production efficiency.

3. Extend equipment life

Residue in pipes can cause corrosion or wear on the inner walls of pipes, and regular cleaning can reduce this damage. Well-maintained equipment generally has a longer service life, reducing equipment replacement costs.

4. Reduce failure rate and maintenance costs

Duct cleaning can reduce equipment downtime caused by blockages, leaks, and other failures. Reducing failure rates can reduce maintenance costs and improve equipment utilization.

5. Reduce security risks

Residue or blockage in pipes can cause equipment overheating, leakage, and other safety hazards. Through regular cleaning, these risks can be reduced and production safety ensured.

Die casting machine is used for pressure casting machine, including hot chamber and cold chamber two kinds. After are divided into straight and horizontal two types. Die casting machine under the action of pressure to the molten metal hydraulic injection mold cooling molding, after opening the mold can get solid metal castings, such as aluminum alloy, zinc alloy, lead alloy die casting.

The closing mechanism of hot chamber die casting machine is the same as that of cold chamber die casting machine, the difference lies in the different injection and pouring mechanism. The chamber of the hot chamber die casting machine is closely connected with the furnace as a whole, while the chamber of the cold chamber die casting machine is separated from the furnace.

Die casting machine peripheral automation equipment including: conveyor belt, safety fence, platform, pressure machine, mold temperature machine, marking machine, trimming machine, cooling device, quick change die device, exhaust filter dust removal device, auto extractor system, servo sprayer,servo ladle machine, quantitative thermal machine, melting and holding furnace, rely on the equipment to realize the automatic die casting production line.

The 75MN horizontal short-stroke front-loading single-action aluminum alloy profile extrusion machine adopts a horizontal three-beam and four-column prestressed composite frame structure, a forward extrusion method, direct drive by an oil pump, and is equipped with advanced foreign electromechanical and hydraulic control components and systems, and The complete set of mechanized auxiliary equipment adopts PLC and computer two-level control to accurately control the speed, position and pressure of the press. The technology used embodies the development trend and advanced technology level of contemporary extrusion presses, and is suitable for production. Manufacturing, operation and maintenance are conducive to improving production efficiency and reducing usage costs.

Prestressed composite frame

The stress-bearing frame of the Aluminum extrusion machine body consists of an integral front beam ZG35Mn (thickness 1950mm) and a rear beam thickness 1800mm (materialZG35Mn), square prestressed sleeve (material ZG35) is a closed prestressed composite frame. Special hydraulic preloading tools are used to pull the An over-pressure tensile load is applied to the entire length of the rod, and compressive stress is applied to the pressure sleeve at the same time, so that the entire frame is in a stress pre-tightened state.The column prestress is above 115% of the maximum load.

(1) The center distance of the four stressed tie rods of the frame is symmetrical to the center of the press, so that the entire frame is stressed evenly. This can increase the squeeze

Accuracy of pressed products.

(2) Since the frame has a large bending resistance section, under the action of extrusion force, the frame elongation and bending deformation are small, so it is the frame can be fixed with horizontal and vertical guide rails at the bottom of the extrusion beam and extrusion barrel.

The centering adjustment is very convenient, and the upper frame can be used as an X-shaped moving guide rail for the extrusion barrel.

(3) There are two sets of elastic anchoring devices and foundation anchors at the lower part of the rear beam to make the rear beam fixed reliably.

Main working cylinder/side cylinder

1. The main working cylinder of aluminum extrusion press is a plunger cylinder, which is fixed to the center of the rear beam through four pressing blocks. The plunger diameter is Φ1740mm, and the medium pressure is 28Mpa. Under the action, it can produce 66.55MN extrusion force. The cylinder body is made of 20MnMo forged steel. After forging and tempering treatment in three sections, it is buried Arc narrow gap welding, processed according to GB\T6402\2008 II level flaw detection. The main plunger is made of forged steel. The outer surface Stainless steel cladding is welded to 2Cr13 with medium frequency treatment, surface hardness is HRC46~48, and polishing degree is 0.2um. V-ring used for master cylinder seal Combined seal, using copper sleeve inner guide

2. The two main side cylinders are horizontally fixed on both sides of the rear beam main working cylinder. The diameter of the side cylinder is Φ450/Φ320mm, which generates an extrusion force of 8.9MN and a return force of 4.4MN, which can realize the rapid forward, backward and extrusion of the main plunger. The cylinder block and piston rod are made of 45 forged steel quenched and tempered. The two-way seal and piston rod seal of the combined piston head adopt V-ring combined seals, and are guided by copper sleeves.

Hydraulic transmission and control system pump station

The pump station of the Aluminum extrusion press adopts an integrated design and is centrally arranged under the rear part of the oil tank of the press. It is composed of an imported German Rexroth electro-hydraulic proportional control axial piston variable pump and a Chinese-made stainless steel plate circulation filtration and cooling system. The piping system design adopts necessary buffering and anti-shock measures, such as cushioning pads, hoses or shock-absorbing hoses, and flexible rubber pipe joints that can absorb vibration. The main system consists of 10 355L/min plunger pumps and 10 320L/min vane pumps from the German REXROTH company. They are designed to be arranged and matched in a certain combination. They can generate a pressure of 28Mpa and a flow rate of 3350L/min to meet the needs of main and side work. According to the cylinder operating speed requirements, closed-loop adjustment of the extrusion speed of 0~21mm/s is achieved, and the extrusion barrel locking cylinder is matched with a dedicated oil pump. Isolation control valves are designed between each oil pump group. If the two mechanisms need to operate at the same time according to the program, they can not interfere with each other. It can realize functions such as isolation between pumps, no-load starting, pressure regulation and overload protection. The pump head electro-hydraulic proportional valve and electronic control device are imported with the main pump and connected with the press main control computer to achieve online control. The main oil cylinder, auxiliary oil cylinder, spindle cylinder, and scissor oil cylinder are integratedly controlled by logic valves. The sliding mold and supporting frame are integratedly controlled by three-position four-way electro-hydraulic reversing valves. Main hydraulic components: master cylinder reversing surface valve, overflow surface valves etc. The main control system oil pump station has a total flow rate of 3350L/min, and its oil pumps are individually controlled.

The design of each aluminum extrusion machine is to maximize the use of resources under the premise of ensuring quality, and has been in a leading position in the industry.

Application of Plant Protection Drone in Corn Production

In the past, the traditional method of pesticide spraying was prone to various problems, such as missed spraying of pesticides, etc., resulting in poor control effects on corn pests and diseases. The application of plant protection drones can effectively solve these problems. Based on the needs of corn production, coupled with the continuous improvement of the level of science and technology, plant protection drones can provide good protection for plant protection in corn production, and achieve high-quality and high-yield corn.

Application Significance of Plant Protection Drone in Corn Production

In corn production, the application of plant protection drones can not only enhance the efficiency of pesticide operations, but also improve the safety of pesticide spraying. It can also reduce operating costs to a certain extent and play a significant role in pest control. For plant protection drones, it has the advantage of fast flight speed. On this basis, chemical spraying can effectively improve the operation efficiency [1]. At the same time, compared with manual work, the use of plant protection drones can greatly reduce the contact between personnel and chemicals, thereby enhancing safety. The use of plant protection drones can combine the actual situation, choose functions such as hovering in the air, and effectively spray chemicals, and can carry out low-altitude operations to exert a good control effect.

Application suggestion of plant protection Drone in corn production

2.1 Increase government support

At present, the advantages of plant protection drones are becoming more and more prominent. The application of plant protection drones is helpful for pest control. In order to better develop plant protection UAVs and adapt to future development trends, relevant departments need to give full play to their roles, combine the actual situation, provide policy subsidies, and devote themselves to the wide application of plant protection UAVs. This can reduce the economic burden of farmers to a certain extent and improve the enthusiasm of farmers to purchase.

2.2 Strengthen technical training

As a high-tech product, relevant personnel need to have sufficient technical knowledge and corresponding operating skills to be able to play a better role and improve the application effect. Therefore, technical training is very necessary. During the training process, it is necessary to focus on explaining the technical principles of plant protection drones, and to fully demonstrate its actual structure. More importantly, it is necessary to conduct practical training for relevant operators to promote scientific and rational use of plant protection drones. For pesticide spraying, ensure that the amount of spraying is moderate. At the same time, through training, we can better discover the problems of plant protection drones, and take measures as soon as possible when problems occur. Before use, it is necessary to consciously check to ensure the comprehensiveness of the inspection and provide a good guarantee for the safe operation of plant protection drones [2].

2.3 In-depth technical research

At present, plant protection drones are widely recognized and concerned, and have become a hot spot in industry investment. Many companies in China are committed to the research and development of plant protection drones. Through continuous increase in research and development, the rapid development of plant protection drones is promoted. Among them, it is necessary to focus on the research on the pharmaceutical effects of plant protection drones, and continue to develop new functions to achieve the safe development of the corn industry. At the same time, more attention needs to be paid to the battery capacity of plant protection drones. Through effective research and development, the battery capacity will be continuously increased to promote a significant improvement in battery life.

2.4 Operation points of plant protection Drone

To carry out plant protection drone operations, it is necessary to strictly follow the relevant operating procedures, abide by the relevant operating requirements, and ensure the standardization of operations, so as to effectively ensure safe operations. Specifically, all aspects and multi-angle inspections are required before and after the use of plant protection drones. In the actual inspection process, it is necessary to follow a certain order to ensure that no omissions are left. After the inspection is correct, the plant protection drone can be started. After the work is completed, the relevant personnel need to clean it comprehensively. Not only the fuselage, but also the rotor and the landing gear need to be cleaned. At the same time, it is necessary to focus on the spraying system and clean it effectively. While cleaning, it is necessary to start the inspection procedure, among which, it is necessary to focus on the inspection of the fuselage of the plant protection drone to check whether there are obvious cracks. At the same time, it is necessary to check the main components and pay attention to the firmness of the screws. Once a problem is found, it is necessary to contact the manufacturer as soon as possible and take appropriate measures to solve and deal with it.

When conducting flight operations, it is necessary to control the flying height of the plant protection drone in combination with the actual situation, and ensure that there is no leakage of spraying, and at the same time prevent the occurrence of heavy spraying and other situations. For the actual flight operation speed, scientific and reasonable control is also required. For the actual flight operation distance, it needs to be determined in advance, based on the size of the field, to effectively complete the flight operation and avoid temporary round trips. In order to ensure the safety of flight operations, it is necessary to stay away from crowds and high-voltage lines during the actual operation of eavisionag plant protection drones. Check the battery of the plant protection drone to ensure that the power is sufficient, and pay attention to testing the walkie-talkie to ensure that the signal is good. When the weather is relatively bad, such as rainy days, etc., it is not possible to carry out plant protection drone operations.

EPR (Electron Paramagnetic Resonance) Spectroscopy, also known as Electron Spin Resonance (ESR) Spectroscopy, is a technique used to study the electronic structure of paramagnetic species.

There are two main types of EPR spectroscopy: Continuous Wave (CW) EPR spectroscopy and Pulsed EPR spectroscopy.

Continuous wave (CW) EPR Spectroscopy:

In continuous wave EPR spectroscopy, a microwave source continuously emits microwave radiation at a fixed frequency into the sample.

A magnetic field is swept over a range of frequencies and the absorption of the microwave radiation by the sample is measured as a function of the magnetic field strength. This produces an EPR spectrum showing the jumps between energy levels of paramagnetic species.

CW EPR spectroscopy is commonly used to study relatively slow dynamic processes and to examine stable paramagnetic species.

Pulsed EPR Spectroscopy:

Pulsed EPR spectroscopy, also known as pulsed electron-electron double resonance (ELDOR) or electron-electron resonance, utilizes short pulses of electromagnetic radiation. This technique is used to study the dynamics of paramagnetic species and their interactions with their surroundings.

Pulsed EPR spectroscopy provides more detailed information and allows the measurement of relaxation times, distances, and other dynamic parameters. It involves applying microwave pulses, often combined with radio frequency (RF) pulses, to manipulate the electron spin state and measure the resulting signal.

Pulsed EPR techniques include Electron Spin Echo (ESE), Electron Nuclear Dual Resonance (ENDOR), Electron Spin Echo Envelope Modulation (ESEEM), and others.

Pulsed EPR spectroscopy is particularly well suited for the study of transient species, radical reactions, and spin-spin interactions in paramagnetic systems.

Both CW EPR and pulsed EPR spectroscopy have their advantages and applications, depending on the specific research objectives and the properties of the paramagnetic species under study.

CIQTEK offers X-Band Pulse EPR Spectroscopy | EPR100 and X-Band CW-EPR Spectroscopy | EPR200-Plus

The Scanning Electron Microscope (SEM) is a powerful tool for various applications in material sciences, life sciences, and other fields. Different kinds of detectors have been developed to obtain more information and improve the performance of SEM. The following are a few common types of SEM detectors:

Backscattered Electron Detector (BSE): BSE detectors are used to detect electrons scattered by the nuclei of atoms and high atomic number elements within a substance.BSE detectors provide high-contrast images that can be used for compositional analysis of materials and characterization of microstructures.

Secondary Electron Detector (SE): The SE detector is used to detect secondary electrons on the surface of a material excited by a scanning electron beam. Since the surface morphology and material composition influence the secondary electrons, the SE detector provides a high-resolution image of the surface topography.

Transmission Electron Detector (TED): TED detectors are used to detect transmission electrons that pass through a thin sheet of material and are focused on the detector. TED detectors are suitable for high-resolution compositional and structural analyses of materials, e.g., atomic-level characterization of nanoparticles.

Energy Dispersive X-ray Spectroscopy (EDS): EDS detectors are used to analyze the elemental composition of materials. When a scanning electron beam interacts with a sample, characteristic X-rays are produced, and the EDS detector collects and measures the energy spectrum of these X-rays to determine the chemical composition and elemental distribution of the material.

Retarding Field Detector (RFD): The RFD detector is used to measure the charge carried by electrons generated on the surface of the sample. This type of detector is very useful for studying the electrical conductivity and surface charge properties of materials.

These are just some of the common SEM detectors; in fact, there are many other types of detectors, each with different advantages and applications. The selection of the appropriate detector depends on the objectives of the study and the information to be obtained.

CIQTEK's self-developed SEM offers a wide range of detectors to choose from, such as BSED, STEM, EDS, EDX, EBSD, In-lens, ETD, etc. 

ESR (Electron Spin Resonance) and EPR (Electron Paramagnetic Resonance) are used interchangeably to describe the same spectroscopic technique. The reason for the two different names can be traced to the historical development of the field and some of the interesting stories surrounding it.

Originally, the technique was called ESR, or electron spin resonance. It was discovered in the mid-20th century by physicists studying the behavior of electrons in magnetic fields. They observed that certain materials absorbed energy at specific frequencies when exposed to strong magnetic fields and subjected to electromagnetic radiation. This absorption is due to the electron spin states flipping in the magnetic field, resulting in resonance.

As the field grew, researchers began to study the spectra of paramagnetic species - atoms, molecules, or ions with unpaired electrons. They realized that ESR techniques could be used to study a wider range of systems than just electrons. As a result, the term EPR (Electron Paramagnetic Resonance) was coined to encompass a broader range of applications.

The transition from ESR to EPR did not happen overnight or with universal adoption. Different research groups and scientific communities preferred to use either term. For example, the term ESR was widely used in the United States, while EPR became popular in Europe. This difference in naming conventions continued for some time until the two terms gradually became synonymous. Today, the two terms are widely accepted and used interchangeably to describe the same spectroscopic techniques.

The dual naming of ESR and EPR provides insight into the historical development of the field and how scientific terminology has evolved and adapted over time. It also serves as a reminder that in science, different cultures and communities may adopt different names for the same concept, and these differences may persist until a consensus is reached.

EPR spectroscopy has applications in a variety of fields including chemistry, physics, biochemistry, materials science, and medicine. It has been used to study the structure of metalloproteins, the mechanism of enzyme reactions, the properties of organic radicals, the behavior of transition metal complexes, and defects in semiconductors, as well as many other fascinating areas of research. Its ability to probe electron spin makes it an invaluable tool for understanding the fundamental properties of paramagnetic systems and exploring their role in a variety of physical and chemical processes.

>> Check more about CIQTEK EPR spectroscopy.

There are several scanning electron microscope manufacturers in Korea.

The following are some of the famous companies:

JEOL LIMITED: JEOL is a manufacturer of scientific instruments and equipment, including scanning electron microscopes. They offer a range of scanning electron microscope models with different specifications and applications.

Hitachi High-Tech Korea Co., Ltd: Hitachi High-Tech Korea is a subsidiary of Hitachi High-Tech Corporation, a global technology company. They offer a wide range of scientific instruments for research and industrial applications, including scanning electron microscopes.

Samsung Electronics Co. Ltd: Samsung Electronics is a leading South Korean multinational company that produces a wide range of products including consumer electronics and industrial equipment. They also produce advanced electron microscopes, including scanning electron microscopes.

S-Connect Co., Ltd: S-Connect is a South Korean company specializing in the development and manufacture of scientific instruments. They offer customized scanning electron microscopes for a variety of research and industrial applications.

TESCAN Korea Co., Ltd.: TESCAN is a global supplier of scientific instruments including scanning electron microscopes. With a branch office in Korea, the company provides SEM solutions for materials science, life science, and other fields.

CIQTEK Co., Ltd.: CIQTEK is a global manufacturer of high-value scientific instruments including Scanning Electron Microscope (SEM).

CIQTEK's SEM products offer advanced microscope technology and innovative features that provide high-resolution surface topography and compositional analysis. 

In addition, CIQTEK provides SEM-related technical support and training services to help users realize the full potential of SEM. They have a professional team with extensive experience and knowledge to provide consulting and solutions.

Check the CIQTEK SEM microscope here.

Research each company's products, specifications, and customer reviews to find the best SEM for specific needs.