Capacitive sensor application in automatic filling machine Due to the large number of fillings per hour of the fully automatic filling machine, the filling of the powder is an important process and it is directly related to whether the content of the drug components in each grain is up to the standard. On this device, the height of the internal powder of the ali powder ring (in the red circle in the figure above) is controlled by a capacitive sensor (see the right figure above). During the filling process of the powdered medicine, once the specified loading height is reached, the capacitive sensor will be energized to output a high level switching signal to the main control PLC, thereby stopping the filling equipment to prevent the powder from overflowing from the hopper. Causes material waste.

Prior to using TURCK's capacitive sensors, customers have also used other brands of capacitive sensors, but due to the lack of effective shielding and compensation circuits in their internal circuits, the switching distance is short and the response time is slow, which seriously affects the production efficiency. In the process of use, due to the short switch distance, it is often necessary to adjust the mounting position of the sensor. However, due to the peculiarities of the pharmaceutical industry, it is necessary to shut down the powder in the powder ring to change the installation position of the sensor, otherwise it will pollute the powder in the powder ring. Causes the entire batch of powder to be scrapped, but repeated downtime will inevitably affect the working efficiency of the filling machine; in addition, in the filling process, in order to avoid the waste of powder, the control of the powder height in the flour ring must be timely, and the filling dose Must be precise, this requires the sensor to have relatively short response time and relatively high precision. Any other brand of sensor previously used by the customer cannot fully meet the needs of the application.

Turck Solution
Turck's technicians have in-depth exchanges with the above requirements and working conditions. We recommend the threaded cylindrical capacitive sensor product: BC10-M30-VN4X, which satisfactorily solves the user's problems. Due to the special working principle of the capacitive sensor, it is easily affected by factors such as temperature change, humidity, and condensation, while the Turck capacitive sensor effectively shields and compensates the circuit by its internal components and realizes basic shielding of the above interference. Solved the application of capacitive sensors to ensure the customer's use of results. In addition, its highly adjustable sensitivity allows users to achieve different inspection needs without changing the installation method.

The BC10-M30-VN4X is also one of Turck's capacitive sensor series products, which can achieve switch distances of up to 15mm in non-flush mounts, satisfying the requirement for large switching distances in the field, thus avoiding frequent adjustments of the sensor mounting position and reducing the number of sensors. Maintenance time and productivity have been improved; its millisecond response time and accuracy of a few tenths of a millimeter have fully met the need for on-site high-level and accurate detection of powdered powder in flour rings. At the same time, the performance of the entire automatic filling machine has also been improved, which can well meet the growing production needs of pharmaceutical companies.

Improve customer production efficiency
<br> <br> hard in this fully automatic filling machine equipment similar to Beijing Han Lin Hangyu production, the production efficiency is the first one, which is reflected in every aspect of the filling, which is directly The embodiment of quality is the number of qualified products produced per hour. The application of Turck capacitive sensor on this equipment has fully improved the performance of the entire filling machine and brought convenience to customers.

First of all, TURCK capacitive sensors have a rich product sequence that can meet the different forms of installation requirements of customers; in addition, the larger switching distance and height-adjustable sensitivity feature make it possible to use the same type of sensor without changing the installation method, only by adjusting the sensitivity. To meet the application needs of different types of automated pharmaceutical machinery and equipment.

Secondly, TURCK capacitance sensors have excellent EMC and ESD protection characteristics, which can completely guarantee the application safety of sensors. With IP67 protection level, they can fully meet the working conditions of the site; its excellent electrical and mechanical protection characteristics make the sensor life long. To extend, production costs and routine maintenance expenses are reduced.

Finally, TURCK capacitive sensors have a strong ability to resist adverse environmental factors, and can basically block out the interference factors such as humidity, condensation, and temperature changes. Its reliable quality reduces both the number of maintenance and the production process. Continuity has led to a significant increase in the output of automated pharmaceutical equipment.

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