How to choose the right equipment for cylindering logs.
Our clients often ask to choose the optimal equipment for the needs of any enterprise or individual, taking into account the specifics of the workshop, product diameters, budget, required cubic capacity, etc. Of course, the choice of this or that machine is always yours, in this article we will try to intelligibly, in simple language, explain the purpose and features of both a single one and a set of machines manufactured by our company.
And so, let’s start with the lathe of the first model OСS-1M, which is a single-spindle unit that performs all operations (processing, milling the mounting slot, recessing) with one cutter. Here it is worth paying attention to the design feature of the cutter, which immediately contains roughing and finishing knives (combined cutter), capable of removing up to 100 mm per radius in one pass and at the same time going straight to the finishing size, this cutter is also capable of making several diameters, due to interchangeable knives. The scope of delivery of the OСS-1M lathe may include three cutters: No. 1 holds size 160, No. 2 holds size 180-200, No. 3 holds size 220-260. Thus, for a quick transition to an adjacent size (within the same cutter), it is only necessary to change two shaped knives. Despite the seeming simplicity of the machine, the OCS-1M in the basic configuration has an electromechanical feed of the portal with smooth speed control, electromechanical lifting / lowering of the carriage, hydraulic lifters of the log, built-in heating of the electronic part, as well as automatic 3 stops, excluding sagging and vibration of the log. All these options allow even one operator to work comfortably without much physical effort. With an average productivity of 80-100 m for an 8-hour shift, the OСS-1M lathe has proven itself well among private traders and small companies.
Next, we will consider the automatic machines OCS-2AM and OCS-3AM — these are two brothers that differ only in the presence of a unit for milling a recess (on OCS-3AM — there is a cutter for excavation in a log, on OCS-2AM it is not), according to their principle of operation, they are completely automatic, and do not require operator intervention during operation. The operator’s job is to set up the machine 1 time for the entire project to the required diameter, and then set the workpiece, press the start button, wait until the machine finishes the processing cycle, remove the finished product. This concept of machines was developed by the engineers of our enterprise, based on the observation of the work of ordinary workers on lathes of the first generation (then still OCS-1), these machines were specially designed for people who do not need to delve into the intricacies of the machine, for them all the work is done by automation. By the type of drives, the machines are multi-spindle, that is, for each operation (machining, milling of the mounting (lunar) groove, milling of the expansion slot, milling of the recess) there is a separate milling cutter with an independent drive, as well as a control electrical mechanism. Of the features of the 2AM and 3AM machines, it should be noted the presence of a patented combined rounding cutter with finishing and roughing knives, capable of removing up to 100 mm per radius without much effort on the engine, as well as a cutter installed on the 3AM for a recess with smooth adjustment of the recess diameter.
So what are the benefits of a multi-spindle machine? Firstly, each drive is already at its workplace (it is not necessary to move the cutter every time, first to the machining coordinate, then to the groove, the notch), secondly, the quality of the geometry of the products increases sharply, all the logs are now of the same diameter, with the same mounting grooves and grooves (in other words, the quality of vision and the computing power of the employee no longer affect the uniformity of the rounded logs of any project), thirdly, the productivity of the equipment increases sharply.
Further, a reasonable question arises, which is more optimal: OCS-3AM or OCS-2AM + UHS (or an optimization line)? Each option has its pros and cons: OCS-3AM takes up a smaller area, requires fewer maintenance personnel, all operations take place from one log installation, the OCS-2AM + UHS layout (or optimization line) allows you to get high productivity (about 30%) for due to the division of the operation, plus, on the UHS-2M it is possible to cut the floor of the cut at angles.
The OCS-4A lathe is also an automatic machine, in terms of functionality and principle of operation, it is similar to the OCS-2AM (processes, mills the mounting and compensation groove), but intended mainly for projects, the maximum diameter of which can reach up to 500 mm, with a maximum the diameter of the workpiece is 700 mm, while for OCS-2AM and 3AM these values are 360 mm and 600 mm, respectively. As in the case of the OCS-2AM, for full-fledged operation on this model of the machine, you will need an UHS-2M recess milling machine (or an optimization line), but with a more powerful cutter drive.
Further, we will consider the layout of the machines using the example of the KOBRA-400 complex, which consists of two OCS-2AM lathes, an optimization line and a conveyor for removing chips. The purpose of this chain of equipment is to maximize productivity, due to the fact that one optimization line can simultaneously serve two lathes, and the presence of a TOL-1 conveyor eliminates interruptions for cleaning chips. In other words, COBRA-400 is a continuous conveyor for the production of rounded logs, the technological links of which are constantly in operation.
The choice of equipment for business is always a responsible task, the solution of which can take a long time, and in this article we have tried to give you a more complete explanation of the specifics and purpose of both individual machines and complexes.