The principle of band saws has been mastered in the nineteenth century and today continues to be relevant.Of course, the current models of these units are structurally terms have little in common with the first version, but the basic technological features remain the same.They include saw-shaped ring, which can be used to carry out straight and curved cuts.Apply a band saw in different areas, but the main ones are wood processing factories and furniture enterprises.The device with the same quality carries roughing and produces high-precision cuts in joinery.
machine design
Much of the wood processing depends on the parameters of the machine, so its design should be considered more carefully as individual components.Composition assembly comprises a C-shaped frame, the upper and lower pulleys guiding members saw and the work platform, a motor protecting flap.Also for instant stop cutting using special brakes, and to delay the tape in case of breaking it provides a locking device.To ensure that users are able to adjust the width of the cut, apply the guide line.
If you choose should take into account the location of the bachelor on the direction of the band saw workpieces - it can be left- or right-hand.Different band saws for wood and design features the frame.There are welded and cast foundations.However, this criterion is more significant in relation to models designed for the processing of metals.
vertical or horizontal?
This classification is due to the type of arrangement the band saw - accordingly, it is vertical and horizontal.There are also modifications with inclined blade, but it is rare specimens for specific or complex transactions.In large models with vertical blade movement is allowed only for the console with a work item.Small vertical band saw machine has a different operating principle - it is fixed only saw frame and the workpiece can move.Such models can be used for different types of work - and for the manufacture of a piece of wood constructions and furniture production.
representatives horizontal band saw machines are considered the most powerful.Some representatives of this category are capable of sawing wood and frozen solid rock.It is noteworthy that the horizontal band saw in Soviet times was intended solely for the processing of wood, although its design features are more suited to metal.
Automatic machines
were once popular and manual versions of band saws, but today they are almost forced out drives, so the question is only in the choice of the degree of automation.Automatic band saws for wood often used in enterprises that are commercially produced wood products.In such a feeding mechanism is done automatically - with the help of the engine and the feed vise.If sawed-off element in length will exceed the parameters of the course, its transmission is done in two ways with the interception.Selection of full automation is usually justified if the planned mass workpieces short length.
Semi-automatic models
Versions with semi-automatic control increasingly used in harvesting the wood industry.Among the advantages that a semi-automatic band sawing machine, there is the possibility of the manipulation of the saw frame and vice in the same auto-mode.In operation, the workpiece is double pressure (from the frame and cylinder), which allows to saw solid blanks without third-party efforts.
Features saws
main element of the machine, on which depend almost all the quality parameters of the finished product.The very same machine to a greater extent affect the functionality and usability.The width of the band saw blade can be from 2.5 to 5 cm and a thickness ranging from 0.9 to 1.1 mm.In some versions bandsaw is designed to combine with other characteristics of the saw, but for standard operations is better to stay at one of the listed sizes.Regarding the material it is recommended to choose the model of carbon steel, which, however, and are considered the most common.Additionally, in choosing the bandsaw is important to consider the type of manufacturing, which ultimately determines the hardness.In particular, there are webs with uniform quenching, with a flexible backrest and hardened.
feed rate and cutting
not always this indicator becomes crucial, but if the machine is selected for production problems, it is worth paying attention to.The speed at which the cut is performed, determines the efficiency of the use of aggregates in the case if it is not coordinated with the rate of feed and interdental saws.As a rule, it provides the band saw at a speed of 700-900 meters per minute, which corresponds to most of the paintings that are typical interdental distance.Changes in feed rate is usually aims at improving the efficiency of cutting.
Operating rules
When performing cutting operations is always important to keep in mind safety, but do not forget that the main goal - to provide smooth, accurate cutting.First, you need to fix the wood harvesting to minimize vibration of the working canvas.This will affect not only the convenience of work, but also increase the productivity of the entire process.
straight cutting is carried out along the rail line or by movable stops, and if performed curved cuts - in accordance with the applied markings or by means of special mechanisms for capturing and workpiece.In automatic mode, the straight cutting band saws is facilitated by a removable feeder.This structure resembles the ADF on the bracket with its complementary rollers.By manipulating this device can easily manage the process, but if you plan to create a figure cutting, the ADF mechanism is removed.Obviously, the serial production of the work in this format is not possible or requires other auxiliary machinery.
Manufacturers
Market band saws has one feature that is pronounced segmentation of producers, each of which takes its own sector.In other words, a serious competition between similar models do not have the characteristics.For example, the initial level is represented by the Russian company "Bison", which produces very sturdy machine with basic features and cost 20-30 thousand. Rub.Ironically, the Japanese brand Makita is in this class, and the whole is a fairly modest - mostly average performance version of the budget.
Those planning to get a truly effective and multifunctional device, once it is necessary to apply to the production of Metabo.The range of this brand contains copies of up to 1 900 W and a maximum depth of cut of 28 cm. The leaders of the segment can be rightfully attributed machine Band Jet, which is suitable for small cabinet, and large-scale factories.The most powerful machines capable of providing up to 5500 watts, and the depth of cut up to 45.5 cm.
Conclusion
equipment to perform complex operations on timber processing is not cheap, but it allows you to do the job safely and efficiently as possible.Saws in this regard are the best solution, as combine several important parameters: reliability, portability, ease of operation and the possibility of replacing the mechanisms responsible.
difficult to predict how much will be effective in a particular band saw certain conditions.Nevertheless, a detailed analysis of the characteristics, such as cutting depth, speed, options saws, feed configuration elements allow as close as possible to the right decision.The rest is dependent on the quality of the equipment.It requires regular cleaning, check all the brackets and clamps, as well as prophylactic treatment of external functional elements.
