Company FAQ


Q:What is the working principle of an automatic alignment correction device?

A:The working principle of misalignment correction in a light curtain is as follows: The optical protection device detects the misalignment position, and if there is any deviation, it sends out a signal. The optical misalignment software system then performs editing and calculation operations on the signal and sends out control signals. The external actuator is driven by the control system to make corrections in the movement of the material, thus controlling the material to move in a straight line.The Daide Schex QL series misalignment correction light curtain is suitable for use on various roll-to-roll equipment, such as paper rolls, films, fabrics, non-woven fabrics, and metal foils. It can perform both single-side and double-side misalignment correction. It features a simple wiring installation method and diverse output functions.The main features of the Daide Schex QL series misalignment correction light curtain are as follows:1. It can be widely used in industries such as printing and packaging, papermaking, film, and that require control of edge alignment.2. The QL series misalignment light curtain has a sturdy structure and can perform single-side, double-side, and center alignment correction. The wiring and installation methods are diverse, making it easy to operate.3. It can detect over long distances and is easy to align, with a maximum detection accuracy of 1.25mm.4. It offers multiple scanning modes, including parallel scanning and cross scanning.5. It has RS485 or RS232 communication capabilities, allowing communication with a host computer using the standard MODBUS protocol.6. The detection distance can reach up to 20,000mm, with a typical protection height ranging from 30-2000mm. The light beam spacing options include 1.25mm, 2.5mm, 5mm, and 10mm, making it suitable for high-precision detection and measurement.

Q:What is the significance of equipping automation equipment with Leuze safety light curtains?

A:DaDishiKe safety light curtains are widely used in various industries such as stamping, hydraulic presses, injection molding machines, die-casting machines, packaging machines, paper cutters, industrial robots, bending machines, and personnel separation. Leuze also provides specialized waterproof and dustproof light curtains for bending machines, as well as light curtains for pneumatic presses and hydraulic presses.DaDishiKe safety light curtains are mainly applied in industries including hardware pressing, plastic injection, automation, and machinery equipment. You can visit the official Leuze website to see industry-specific application solutions that showcase a range of cases. In the hardware pressing industry, the use of photoelectric protective devices is particularly extensive and can be applied to pneumatic presses, hydraulic presses, oil presses, and large gantry presses. Leuze safety light curtains are designed to protect fingers, palms, and arms according to customer requirements, ensuring the personal safety of users.Measurement light curtains have wide applications in industries such as detection grids, volume measurement, alignment correction, spray coating, and traffic. In the traffic industry, it refers to vehicle separation light curtains. The intelligent light curtains with high technical content and measurement light curtains require technical calculation before pricing. Therefore, delivery of measurement light curtains may not be possible on the same day. However, our safety light curtains, including compact and ultra-thin ones, can generally be shipped on the same day.

Q:In order to ensure safety in manufacturing enterprises, several measures can be implemented?

A:In industrial production, various high-risk production equipment is used, such as punching machines, bending machines, and shearing machines. Without proper safety measures, these devices can easily cause accidents during operation, posing a serious threat to the personal safety of workers.In this era, which values talent, recruiting has become increasingly difficult. Every employee wants to work in a safe environment, so they choose workplaces where they feel secure. Therefore, it is necessary to prioritize the safety protection of dangerous machinery equipment.Optoelectronic protection devices are high-level safety protection devices that maximize the personal safety of workers and ensure safe production.With the installation of optoelectronic protection devices on equipment, employees can use these devices with peace of mind, no longer worrying about injuries to their hands or other body parts. Companies no longer have to worry about paying high compensation for employee injuries. This is beneficial for both parties.When we talk about optoelectronic protection devices, we are actually referring to safety light curtains. Safety light curtains are now widely used, and their prices are not as expensive as before. A set of light curtains typically ranges from a few hundred to one or two thousand dollars. Even if a workshop has more than ten devices, the cost is not significant compared to the hefty compensation required after an accident. It is definitely worth it.Since optoelectronic protection devices involve safety protection, it is important to find reliable and high-quality ones. For example, Dongguan DADISHIKE Technology Co., Ltd. has over 10 years of experience in the field of optoelectronic protection and leads the industry in terms of technology level. They have unique qualities in terms of quality and service, making them a trustworthy brand.

Q:How to maintain and service a safety light curtain? - DADISICK Da Dishi Ke

A:Good maintenance and care of a safety light curtain are crucial as they directly impact its lifespan and can even affect its safety functions. Therefore, proper maintenance is essential. Here are a few tips based on experience:Experience 1: Each grating should be regularly inspected and maintained, with dedicated personnel responsible for their care.Experience 2: Before starting work each day, it is important to check if the safety grating is powered on and functioning properly before operating the machine.Experience 3: Develop the habit of regularly cleaning the grating, especially the filter plate, to avoid oil stains and dust. If possible, it is recommended to provide a protective cover for the grating.Experience 4: When replacing or adjusting the mold on the machine, make sure to adjust the height and safety distance of the grating to the appropriate position after completing the task.Experience 5: Avoid stacking objects near the installation area of the grating to prevent accidental damage.Experience 6: It is advisable to have a professional inspection or maintenance of the grating performed annually. If any malfunctions occur, do not attempt to repair it yourself, but rather seek the assistance of a professional technician.

Q:What is the working principle of a colored metal identification sensor?

A:A colored metal identification sensor is a type of sensor that utilizes the principle of eddy currents for detection. Its working principle involves generating an alternating magnetic field through an induction coil, which induces eddy currents in the object being detected, thereby changing the electrical parameters of the coil. This allows for the determination of the properties and characteristics of the detected object. The specific process is as follows: 1. Generate a magnetic field: The coil in the sensor generates a high-frequency alternating magnetic field by carrying current. 2. Induce eddy currents: When a metal object approaches, the magnetic field induces the generation of eddy currents, which affect the electrical parameters of the sensor. 3. Detection: By detecting and analyzing the changes in the electrical parameters, the type and characteristics of the detected object can be determined. Colored metal identification sensors are primarily used in industries that require the detection of colored metals (such as copper, aluminum, etc.) in metal materials, such as scrap recycling, waste sorting, and metal processing.

Q:What is a long-distance bi-directional projection screen? What are its advantages?

A:DADISICK-QA series long-distance bi-directional safety light curtains are safety devices that utilize the principle of bi-directional projection. They are mainly used in applications that require coverage of larger areas, such as robotic automation production lines and automotive assembly lines. Compared to traditional safety light curtains, the DADISICK-QA series offers several advantages:1. Wide Coverage: Long-distance bi-directional safety light curtains can cover larger areas, replacing multiple sets of traditional safety light curtains, reducing equipment costs and the difficulty of installation and maintenance.2. Extended Range: Traditional safety light curtains typically have a range of a few meters, while long-distance bi-directional safety light curtains can reach tens of meters, meeting specific requirements.3. Fast Response Time: Due to the bi-directional principle, long-distance bi-directional safety light curtains have a very fast response time, detecting objects in milliseconds and ensuring the safety of operators and equipment.4. Strong Anti-Interference Capability: Long-distance bi-directional safety light curtains use digital signal transmission, effectively resisting the influence of electromagnetic interference and other sources of interference.Indeed, long-distance bi-directional safety light curtains have various advantages, including wide coverage range, extended operating distance, fast response time, and strong anti-interference capability. These features make them widely applied in industries such as robotic automation production lines and automotive assembly lines, where large areas need to be covered for safety purposes.

Q:What is LiDAR?

A:LiDAR, also known as Light Detection and Ranging, is a system that combines laser, Global Positioning System (GPS), and Inertial Measurement Unit (IMU) technologies to collect data and generate precise Digital Elevation Models (DEMs). By combining these three technologies, LiDAR can accurately locate the spot where the laser beam hits an object and achieve centimeter-level ranging accuracy. The greatest advantages of LiDAR are its precision and efficiency in operation.LiDAR can accurately and precisely obtain information such as the distance and speed of a target or achieve target imaging. The working principle of LiDAR involves the laser beam being directed through a scanning unit to form a beam angle deviation, which interacts with the target to produce reflection/scattering echoes. When the receiver is active, echoed photons from the original path can reach the receiver. The receiver forms signal reception through a photodetector and obtains information such as the distance and speed of the target or achieves three-dimensional imaging through signal processing.LiDAR consists of four basic systems: the laser emission system, the laser reception system, the information processing system, and the scanning system. These four systems work together to obtain a large amount of positional information in a short period of time and use this information to achieve three-dimensional modeling.1. Laser emission system: A laser source periodically drives the laser emitter to emit laser pulses. The laser modulator controls the direction and number of emitted laser beams through a beam controller, and the emitted laser is directed onto the target object through the emission optical system.2. Laser reception system: A photodetector receives the laser reflected by the target object through the reception optical system and generates a reception signal.3. Information processing system: The received signals are amplified, processed, and converted into digital signals. The information processing module then calculates the surface shape, physical properties, and other characteristics of the target object to establish a target model.4. Scanning system: It rotates at a stable speed to scan the plane and generate real-time positional information.The classification of LiDAR be done based on different factors:1. Functional and Usage Classification: Tracking LiDAR (for range and angle measurement), Motion Target Indication LiDAR (for obtaining target Doppler information), Flow Velocity Measurement LiDAR (for measuring Doppler information), Wind Shear Detection LiDAR, Target Identification LiDAR, Imaging LiDAR (for measuring the reflected intensity and distance signals of different parts of a target), and Vibration Sensing LiDAR.2. Working System Classification: Doppler LiDAR, Synthetic Aperture Imaging LiDAR, Differential Absorption LiDAR, Phased Array LiDAR, Portable LiDAR, Ground-based LiDAR, Vehicle-mounted LiDAR, Airborne LiDAR, Shipborne LiDAR, Spaceborne LiDAR, and Missile-mounted LiDAR.3. Working Medium Classification: Solid-state LiDAR, Gas LiDAR, Semiconductor LiDAR, Diode-Pumped Solid-State LiDAR, etc.4. Detection Technology Classification: Direct Detection Type, Coherent Detection Type.5. Platform Classification: Portable LiDAR, Ground-based LiDAR, Vehicle-mounted LiDAR, Airborne LiDAR, Shipborne LiDAR, Spaceborne LiDAR, and Missile-mounted LiDAR, among others.Lidar can be classified according to several factors:1. Function and Purpose: This includes tracking radar (for distance and angle measurements), motion target indication radar (to obtain target Doppler information), flow velocity measurement radar (to measure Doppler information), wind shear detection radar, target recognition radar, imaging radar (to measure the reflection intensity and distance of different parts of a target), and vibration sensing radar.2. Operating System: This includes Doppler lidar, synthetic aperture imaging lidar, differential absorption lidar, phased array lidar, portable lidar, ground-based lidar, vehicle-mounted lidar, airborne lidar, shipborne lidar, and satellite-based lidar.3. Working Medium: This includes solid-state lidar, gas lidar, semiconductor lidar, diode-pumped solid-state lidar, etc.4. Detection Technology: This includes direct detection type and coherent detection type.5. Platform: This includes portable lidar, ground-based lidar, vehicle-mounted lidar, airborne lidar, shipborne lidar,-based lidar, and missile-carried lidar.Advantages of laser radar include:1. High resolution: Laser radar can achieve high angular, distance, and velocity resolution, which means it can produce very clear images using Doppler imaging techniques.2. High accuracy: Laser beams propagate in straight lines, have good directionality, narrow beams, and low dispersion, resulting in high accuracy.3. Strong resistance to active interference: Unlike microwave and millimeter-wave radar, which can be easily affected by electromagnetic waves widely present in nature, laser radar has few sources of interference in nature, making it highly resistant to active interference.4. It has extremely high distance, angle, and velocity resolution: Detection accuracy is within centimeters, enabling precise identification of the specific contours and distances of obstacles without missing or misjudging obstacles ahead.5. Rich information acquisition: Laser radar can directly obtain information such as distance, angle, reflection intensity, and velocity of targets, and can generate multidimensional images of targets. High-frequency lasers can obtain approximately 1.5 million position point information in one second, accurately recovering the three-dimensional features of the surrounding environment using the distance information from these point clouds.6. All-weather operation: Unlike millimeter-wave radar, laser radar can detect human bodies, and its detection range is longer than that of cameras.7. Long detection range: Laser radar's wavelength is in the range of thousands of nanometers, with good directionality, no steering, and no diffusion with increasing distance. It is not limited by pixels and light.

Q:What is an infrared high-precision measurement and detection light curtain?

A:With the rapid development of industry, the operation and control technology of machines are becoming more advanced, and automated equipment has become an essential tool in modern factories. However, if safety precautions are not properly implemented, there could be potential safety hazards in hazardous work areas such as punching machines, hydraulic presses, oil presses, intelligent warehousing, and industrial robots. The application of infrared light grid sensors in the field of safety protection is known as safety light curtains/safety light screens/optical protective devices, etc.As the precision requirements for workpieces increase and labor costs become more expensive, along with the widespread use of automated equipment, many industries choose to use automated or semi-automated solutions to overcome tedious and repetitive manual measurements. These solutions are commonly used for measuring the shape, size, volume contour of objects, hole detection, classification detection, positioning detection, edge detection, height limitation detection, vehicle separation, and other aspects.DADISICK's measurement light curtains are derived from safety light curtains and have higher accuracy and technical requirements. Their principle is based on detecting changes in the shape of objects passing through the infrared light curtain by sensing whether the infrared light is obstructed and the number of obstructing blocks.Safety light curtains are commonly used for safety protection and detection positioning. Typically, safety light curtains are used as switch signals, with normally closed mode used for personal safety protection and normally open mode used for detecting the position of workpiece productsDADISICK's QL measurement light curtains usually communicate with safety light curtains using RS485/RS232/analog current/analog voltage. Of course, we also support network port output. The purpose is to transmit the signals detected by the measurement light curtains through communication to the PLC or controller to obtain the required data.

Q:What is an electromagnetic security door lock switch? ensure that the it not  opened ?

A:Electromagnetic security door lock switch: As the name suggests, when power is applied, the lock generates magnetic force, causing the lock to engage and latch onto a small metal piece within the groove. When the power is turned off, the latch will reset and the lock opens as the magnetic force disappears. It also has the feature of unlocking when power is applied, and can control 6 pairs of contacts simultaneously, providing multiple mechanical signal outputs in either normally open or normally closed state. It can control more than 3 devices and can be used in conjunction with safety relays and contactors, offering powerful functionality.To ensure that the electromagnetic security door lock switch is not opened after a power failure, you can consider the following measures:The magnetic lock operates based on electromagnetic principles and does not have any mechanical structure. In recent years, magnetic locks have been widely used in automated production lines. Since they are part of an access control system, they require a power supply, usually a 12V DC power source. To ensure that the door lock is not opened during a power outage, the access control power supply box should be equipped with a backup battery (backup power supply).

Q:What is a safety mat?Technical specifications of industrial safety mats.

A:DADISICK safety mats are devices used for floor protection in hazardous areas. They generate a switch signal by detecting sufficient pressure, ensuring area safety. They are reliable, easy to install, and versatile. The safety mats have excellent corrosion resistance to various chemicals such as acids, alkalis, and salts, and are expected to work for more than one million cycles. They are made of special heavy-duty PVC plastic and impact-resistant steel plate structures, preventing delamination and withstanding high-temperature welding slag and wheel rolling. The dynamic load capacity reaches 800-1000Kg. DADISICK safety mats are available in sizes ranging from 300X300mm to 1500X1000mm, and can be customized according to customer protection requirements. They come with two types of safety mat edges: aluminum alloy or yellow PVC edges, installed on an aluminum baseplate with pre-set cable channels.Safety mat switches are gradually being introduced into various types of production-oriented enterprises and are widely utilized in these businesses.Introduction to DADISICK Safety Mats:Model: DT11 DT15Detection Method: Pressure sensing methodOperating Force: Maximum Allowed Dynamic Load: Impact Load:Mechanical Life: 3000000 times 3000000 timesEncapsulation and Surface Protective Layer: PVC PVC, CRAmbient Temperature: -20℃——+55℃ -35℃——+65℃Protection Level: IP65Maximum Temperature (23 degrees): 95% (condensation)Response Time: 13msEN1760-1 Reset Command: SupportedISO 13849-1:2006 Cat.3Average Dangerous Failure Time: 30 years

Q:How to determine if a safety light curtain is working properly?

A:Safety light curtains are also known as safety light screens, safety light curtain sensors, infrared safety light curtains, photoelectric protectors, infrared photoelectric protectors, punch press photoelectric protection devices, etc.How to determine if a safety light curtain is in working mode?Many customers may have doubts when using a light curtain for the first time, wondering if it is installed correctly and if it is in normal working mode.Because the purpose of a safety light curtain is to protect personal safety, it must be taken seriously. So how can we determine if a safety light curtain is in working mode?When the safety light curtain is powered on, the emitter will flash three times and then remain on, indicating that it has entered the working mode. The receiver will have red and green lights flashing three times when powered on, indicating that it has also entered the working mode.What are the conditions for the safety light curtain to be working properly?When the emitter and receiver are in working condition, the emitter's red light remains on, and the receiver's green light is illuminated. When the light curtain is obstructed, there is no change in the emitter's indicator light, but the receiver's light changes from green to red, and the digital display shows the number of blocked light beams. When there is no obstruction, the receiver returns to its normal state with a constant green light.

Q:What is the interference solution for safety light curtains? positioning and encoding.

A:DADISICK, a highly sensitive protection device, is increasingly demonstrating strong momentum in its application within safety systems in the manufacturing industry. In some high-end manufacturing plants, large workstations have fully adopted two-dimensional or even three-dimensional protection systems.More production equipment, in situations where frequent intervention is required, almost always choose to use safety light curtains as a solution after considering risks such as material splashing, sparks, and dust dispersion. The benefits of using safety light curtains are as follows:1. The technology industry chain for sensitive protection devices is mature, with clear product classifications, and various resolution and safety performance levels can meet requirements.2. Safety technology is developing rapidly, with continuous breakthroughs in improvement technologies in various aspects and the formation of norms. The future path of standardization is clear.3. As an active defense technology, safety light curtains, in most cases, allow for automatic reset, effectively addressing grounding issues in the production process, significantly reducing operational complexity, and improving production efficiency.DADISICK offers safety light curtains and scanners as products. As a safety-sensitive protection device, safety light curtains bring convenience in usage, but signal interference is also one of the issues that must be addressed.Signal interference in safety light curtains typically arises from two aspects:Interference from the environment:If there are reflective surfaces near the light beams emitted by the safety light curtains, passive reflections can cause the receiving end of the curtains to receive incorrect reflection signals, resulting in the inability to detect intrusions within the protected area.Interference between neighboring light curtains:Due to the widespread use of safety light curtains in adjacent areas and the long protective distance of the curtain components themselves, signal misalignment between the transmitting and receiving ends of neighboring light curtains can occur.Interference solutions for safety light curtains.To effectively avoid the various types of interference mentioned above, we can employ physical positioning and technical measures.Regarding the positioning of safety light curtains in relation to reflective surfaces:[1] Reflective surface[2] Safety light curtain transmitter[3] Safety light curtain receiver[4] Half scanning angle[5] Minimum distance from safety light curtain to the reflective surfacePhysical positioning:The safety light curtains themselves have fixed scanning angles, and specific parameters can be found in the light curtain technical manual. The positioning of the transmitter and receiver of the light curtain can also be determined based on the working conditions. With these two sets of parameters, the minimum distance to prevent reflective interference can be calculated using trigonometric functions such as tangent (tan) or cotangent (cot).In cases where multiple sets of neighboring light curtains are used, additional physical barriers can be utilized or the installation sequence of the receiver and transmitter can be reversed to address signal interference between the light curtains.Usage of multiple sets of neighboring light curtains:Technical measures:In addition to physical means, certain models of safety light curtains have integrated encoding functionality, which prevents interference even when installed close to each other physically. The encoding feature allows the light curtains to function properly even when subjected to interference from other light curtains. This is particularly useful in cases where the transmitter of one pair of light curtains may directly emit towards the receiver of another pair of light curtains. As long as these two pairs of light curtains are configured with different encodings, the issue of mutual interference between them can be effectively resolved.

Q:Do you know any tips for purchasing a safety light curtain?

A:So far, high-quality safety light curtains have been advancing in terms of their application fields and related technological approaches. Professional technical methods have been widely used in various production and processing areas. Choosing and using high-quality safety light curtains is crucial to maximize their technological value. Therefore, it is important for users to understand how to select safety light curtains and ensure the quality of cooperation.1.Pay attention to measuring the effectiveness of technology and the corresponding quality of detection. The accurate detection capability of high-level and reliable equipment itself determines the practical quality of subsequent product testing for users. Currently, photovoltaic quality assurance devices ensure more stable detection results. In addition, their optoelectronic safety protection devices and a series of CNC instruments are becoming more stable in the use process. They can effectively achieve synchronous operation and technical adjustment. Moreover, they can also use their self-diagnostic technology for error correction and validation. Only by doing so, can this high-quality safety light curtain accurately and safely detect and handle, thus maintaining the quality of detection by leveraging the stable and reliable technological advantages of the safety light curtain.2.Pay attention to the performance and quality of measurement technology.It is reported that only with stable parameters and more stable results, can the safety light curtain lay a solid technical foundation for detection. Currently, the equipment that ensures the quality of the safety light curtain has more stable detection results. Moreover, its optoelectronic safety protection devices and a series of CNC instruments are becoming more stable in the use process. By relying on the self-diagnostic technology of these instruments, it is possible to correct errors and ensure consistency in detection. This allows the high-quality safety light curtain to accurately and safely respond, and through scientific detection methods, obtain accurate and consistent detection results to ensure the level of detection.In short, the purchase of high-quality safety light curtains needs to consider issues such as their quality and-sales guarantee. The professional service and accurate design of these instruments determine the quality of their practical use. Therefore, it is important to choose safety light curtains with high standards in terms of quality and corresponding measurement targets. This ensures that the accuracy of the safety light curtain's practical detection meets the application requirements, enabling it to easily meet the demands of precise detection.

Q:What is laser displacement?

A:A laser displacement sensor is a high-precision, highly sensitive measuring device widely used in industries such as mechanical manufacturing, aerospace, automotive manufacturing, and electronics manufacturing. It enables non-contact measurement of objects using laser beams, offering exceptional accuracy and reliability. Additionally, laser displacement sensors provide advantages such as fast response, high-frequency response, and a large measurement range, making them suitable for various complex measurement scenarios.In the field of mechanical manufacturing, laser displacement sensors are extensively applied to automated machining, quality control, and other processes, helping manufacturers improve production efficiency and product quality. In aerospace, laser displacement sensors are utilized for measuring and testing aircraft components, ensuring manufacturing quality and safety. In automotive manufacturing, laser displacement sensors are used for precision dimensional checks and assembly of automotive parts.In summary, laser displacement sensors are crucial measuring devices that can serve as valuable assistants across industries. If you require high-precision measurement and inspection work, a laser displacement sensor is an excellent choice for you!