Calibration grinding machine: overview, description, specifications and reviews

In the woodworking industry and the furniture industry, operations are often used that allow you to accurately adjust the parameters of individual blanks. Usually, wood acts as the target material, but sometimes plastics, gypsum boards, polystyrene, etc. can be treated in the same production of furniture in the same technological stage. Grinding machines are used to perform some of these tasks. With the help of such equipment, the operator properly forms both the edges of the products and a smooth surface. The most effective in the corrective works is the calibrating-grinding machine for wood, which allows for high-quality and precise processing.

Features of the structural device

Unlike classic grinding machines, models with a calibration function provide a more accurate and reliable fixation of the workpiece during its processing. To do this, use guide rails, rollers and latches, using a clamping mechanism to control the position of the workpiece. The body of the machine is a massive rack, equipped with a tunnel through which the processed material passes. For the entire work process is responsible for the engine, whose power is on average 9-15 kW. It drives the shaft of the grinding-and-calibrating machine, which facilitates the machining of the product.

By the way, this is the most wearing part of the equipment, since it has high loads. The shaft can be metal or rubber. In the first case it is possible to count on its durability and reliability, but it will be necessary to prepare for overloads of the power plant. Rubber is softer and lighter, which allows you to spare the engine, but its service life is several times less than the metal counterparts.

Equipment Characteristics

The power potential of such machines is quite large and, as already mentioned, can reach 15 kW. This is approximately 15-20 liters. from. Depending on the model, the machine can have several high-speed modes. Two-stage speed control systems usually allow running 2-3 m / min. A separate function for feeding the workpiece is performed by a second engine, whose power is 400-600 W. It can control both the calibrating feeder platform and the nodes responsible for the clamping force.

Differences in performance and belt grinding calibrating-grinding machines, the main parameter of which is the width. Small mini-machines of this type are equipped with ribbons with a width of 75-100 mm. This is enough to handle small fittings. Industrial full-format machines are provided with ribbons, the width of which reaches 1200 mm. To control such a tape, a metal shaft with a diameter of at least 100 mm is more often used. In terms of installation, the weight of the machine is also important. On average, it varies from 500 to 800 kg.

Treatment options

Again, depending on the structural composition, the machine can perform machining with different parameters and optional features. A typical mode is flat grinding. In this case, the above-mentioned tape is fixed to the shaft, and the processed material in the form of flat sheets is placed on the feed tray. As a rule, standard grinding allows to get the smoothest surface. In more complex structural variants of planting machining mechanisms, the operator can perform not only straight, but also angular machining.

In such versions, the calibration grinder supports the rotation of the drum with the abrasive belt in a vertical plane. To securely fix the workpiece, which is processed in difficult conditions, at an angle, special stops and guide bars are used that can change the position in accordance with the position of the drum. Distributed and the format of oscillation processing, which is realized with a spindle with an abrasive winding.

Implementation of automation in machine tools

Today it is almost impossible to find a grinding machine in which the elements of automatic control or control are not involved. In the professional sphere, even semi-automatic models are less and less used, and manual ones are used only in small workshops or households. Automated calibration grinding machine provides the possibility of an emergency stopping of the working process, precise positioning, centering of the belt, adjusting the feed rate of the workpiece, etc.

By the way, positioning accuracy in some models reaches 0.1 mm. The operator can only set the optimal mode, in which individual operating parameters and commands will be provided. Electronics makes a decision based on data from different kinds of sensors. For example, the temperature sensor detects engine overheating, which results in the system automatically shutting down the power unit or reducing the speed of its operation based on the signal from the sensor.

Reviews of the machines Buldog

The manufacturer Buldog is included in a narrow circle of large companies that specialize in machine tools, offer modern high-tech solutions. Special interest in the market is enjoyed by the ruler SPB 1010. As the owners note, these machines are optimally suited for finishing finishing polishing and surface treatment of board materials. Specialists point to the optimized running gear with the roller-iron configuration. Thanks to the combined operating unit, the Buldog calibrating and grinding machine performs its tasks quickly and efficiently, maintaining optimum quality.

Jet Product Reviews

The Jet firm is at all, if not the most, one of the largest manufacturers of power equipment and industrial equipment. In this context, it is worth considering the modification of DDS237, which is considered universal for small businesses, and for large production lines. Traditionally, the products of this brand are characterized as reliable, stable in operation and durable. But this calibration-grinding machine Jet also has a good ergonomics. According to servicing operators, the convenience of performing operations is due not only to a wide range of adjustment mechanisms, but also to a well-thought-out design in terms of physical comfort in circulation.

Comments about GRIGGIO models

It is an Italian company that offers a wide range of calibrating and grinding equipment for various needs. In particular, as the owners of the GC 65-GC 110 machines note, they are able to cope with tile wood-shaving and solid materials. At the output, the workpieces are smooth and smooth at the machining sites. If necessary, the user will be able to implement non-standard vertical processing - similar operations are best performed by modifications of recent generations. For example, the calibrating grinder in the GC 110 version is equipped with electropneumatic belt oscillation and a digital dimensional visualizer, which makes it possible even to perform complex processing with minimal deviations from the declared parameters.

How much does the equipment cost?

Such machines can cost and 100-150 thousand rubles., And 1-2 million. The price tag is determined by a variety of characteristics. First of all, it affects the design, functional support, power fill and accessories, available in the basic configuration. At the same time Jet company and for a relatively small amount of 400 thousand rubles. Offers a completely sound calibrating-grinding machine. Manufacturers Buldog and GRIGGIO are known only to specialists, but this does not prevent them from producing under their brand expensive models of machines with price tags of the order of 1-1.2 million rubles. This technique is intended, rather, for equipping large production lines, woodworking plants and furniture factories.

Conclusion

Calibration and grinding operations are quite common, and it is not necessary to purchase them for combined machines. The same grinding is carried out and manually, which often allows you to get a higher quality. Nevertheless, the calibration grinder is indispensable in cases where it is important to work with large volumes and at a high rate. That is, we are talking about the factory processing conditions, to the results of which the corresponding requirements are made. An alternative to such equipment can be called only separate grinding and calibration units, but this option will cost more and will be impractical from the point of view of operation.