The Sawsoptimization program is designed for technologists and planners of sawmills and is a tool for optimizing the sawmill and achieve maximum useful output. The program has convenient and flexible settings and an intuitive interface, which greatly facilitates the development of the program and further work with her.

The source data for the program serve:

· Breed sizes

· Required lumber sizes and their cost.

· Specifications of sawmill equipment.

The basic functionality of the program is the calculation of optimal supplies based on this data. The program issues a foreshort, which can be implemented on this equipment and provide the maximum yield or maximum cost of products, allows you to calculate the size of the boards, the volume and cost of finished products.

By registering on our website, you can download the demo version of the program in the section "Documentation and Support".

What's new in version 3.0

The SAWSOPTIMIZATION program of the previous version 2.3 is well known to many sawmills and won wide popularity in Russia. Sawsoptimization2.3 users will find new version Programs the following improvements:

· Advanced features setting up sawing and equipment settings, including: additional settings For saws, profiling machines, saws and cutters, additional equipment profiles (carousel, LINCK, SAB, sawing in 3 pass), the dependence of the width of the saw from the thickness of the cut.

· Special sawing modes: flavored board, sawing with fixed thickness of extreme side boards, sawing material with a false core.

· A modified optimization engine in some cases gives the best results.

· Extended features of operations with posts: manual creation and editing, preservation-reading, the use of an arbitrary step to a log of arbitrary sizes, selecting the optimal diameter for the set.

· Automatic calculation of saw sizes depending on the ultimate humidity according to GOST 6782-1.75

In addition to the basic version, there is a professional version 3.0, designed to optimize the sawing cycle from sorting logs at large enterprises and possessing, in addition to the above, the following optional functionality:

· Planning functional: Group optimization for logs of different diameters, general product output specification for the entire volume of the sawmaker, planning and optimization to obtain a varying output of products by sections.

· Optimization with curvature

· Optimization of sorting logs for the posts for maximum output.

· Intergation with the Optigrade log sorting program

Brief description of the probability of the program Sawsoptimization Professional:

• Packet optimization for all diameters, with the calculation of optimal supplies for each diameter, the total output of sawn timber and access to sections.

• Optimization ability to achieve the required exit to sections.

Example: It is necessary to optimally get the exit of the section 32x150 at least 10%. We achieve this, while the total yield falls from 52.24% to 51.83%.

• Automatic optimization of the boundaries of the sortgroups, as well as the ability to change the boundaries manually and see how the change in the boundaries affects the output.

Example: Changing the limits of the Sortgroups increased the output to 52.66%

• The ability to choose an alternative supply for any rangegroups and see how the postal change will affect the overall exit.

• Accounting for the presence of a system of optimization of cutting at the edded machine. Different variants of the width of the side boards in one post.

Distribution of raw materials in diameters: the ability to either set the residues of raw materials in stock in diameters, or use the statistical distribution according to the sort of logs. Accounting for all dimensional factors (diameter, running) when calculating overall exit.

• Detailed configuration of equipment profiles, the ability to specify different profiles for different diameters.

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In this article we will tell about how the cutting of the logs on the tape sawing. In addition, we will consider what the criteria for selecting one or another way of processing wood and how it affects the characteristics of finished lumber.

Methods of cutting logs to obtain various sawn timber Designed and improved for a long time, since this is the only way to get a cutboard, a timber and other categories of similar products from a solid tree trunk.

From a long time to this day, wood processing methods have evolved, and in addition, new more productive equipment has appeared, allowing the necessary lumber to be obtained quickly and with a minimum amount of industrial waste.

Features of wood processing

Instructions for processing raw materials and production of piltroduction consists of a number of series technological operations, Including longitudinal cutting logs, trimming lumber and pruning in width, sorting by sizes, sorting the quality of manufacture, drying and storage.

Each of the listed steps is important in terms of the quality of finished products. But, it is the cutting that is the most time consuming and responsible stage, during which the main characteristics of finished lumber are formed.

The compilation of the layout plan on sawn timber (the choice of a suitable processing method) depends on the wood breed, from the sizes of raw materials, on the degree of humidity, from density and hardness and from many other factors. Of course, the method of processing raw materials is largely determined on the basis of the level of technical equipment of the enterprise.

Consider what equipment is used for industrial sawing wood and which methods are relevant for each category of this equipment.

Equipment for cutting and features of its use

For longitudinal cutting logs, the following categories of equipment are applied:

• Single ribbon or round (circular) saws - the traditional solution used for a long time.
• The frame saw group is a more progressive solution that allows you to significantly increase the productivity of raw material processing without prejudice to the quality of finished products.

Consider more details of the application of the listed categories of equipment.

1. Individual sawing - This is a method at which single saws are applied. In this case, in one passing pass, only one res. Therefore, the wood trunk is entirely able to cut out for several passes.

Important: The advantage of individual sawing is the independence of each subsequent cut from the previous one.
That is, sawing can be carried out in different planes.
As a result, it is possible to more rationally use those or other properties of different parts of the log.

At the same time, this method is not available, and therefore is not suitable for use in large woodworking enterprises.

1. Group sawing - this is technological process, during which a frame of frame saws is used.
   The advantage of this method is that the log is separated completely in one pass. Due to this, time is saved and, as a result, the cost of it is cheap. But it must be remembered that the group sawing is performed in the same plane.
   To date, the following categories of equipment for group sawing obtained the most widely distribution:

• north-bearing vertical frames, round saws, milling machines (diameter of the processed raw materials from 14 to 22 cm).
• mid-shots vertical frames (diameter from 24 to 48 cm)
• wide-shift vertical frames, double and fourth aggregates of a beltcinopyl type (the diameter of the processed raw materials above 50 cm).

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A detailed description of the functions of the program cutting programs. We offer you an assistant who will increase wood outlet by 10-15%, and the process of training technological cards will speed up 500-700%.

PI2 Cutting logs on the boards of one given width and thickness.

PI2 execution gives the following result:
1. Technological maps Cutting logs.
2. Improving sawing capacity by 10-15%.
3. Reducing the dependence of productivity and quality of sawing from the human factor.

Possible "reverse" calculations: The user only indicates the dimensions of the board, and the program offers (counts) minimum size The logs that need to produce this board. You can sort the logs depending on the size of the boards.
To select the best cutting (the greatest generation), perform many calculations. The calculation report is presented in Excel. It is convenient to import data into your accounting system.

Pitago (Pension) - Smart Engineer Assistant ...

Ozol point * - this distance in meters counting from the thick end of the log, starting from which in the direction of the subtle end due to the release of the logs appears a concern.

Pitago - Fully online solution, you can use it on any device, including cell phones and tablets.

To obtain at the output of a high percentage of lumber from round logs, several different technologies are used, including certain actions cycles. By time sawing round forest And the process of process is different, depending on the selected method of processing, the place of work, the season. So, some enterprises are building a workshop on the primary processing of raw materials near the place of wood blanks and save on it.

Not only trunks are in the processing, but also large branches. Billets of round forest are sorted in size and presence of a crust. The trunks that have not passed sorting are used in the future for draft work (manufacturing scaffolding and etc.). When accepting raw materials from the supplier, not only the cube is checked, but also the presence of damage, rot, bitch - such materials do not meet the specifications. Wood flaws reduce the percentage of finished products at the exit, and the bitch can damage the equipment.

Before sawing, the stem hydroch is often carried out (removal of the cortex on a special machine) - this process is optional, but is considered economical:

• due to the absence of stuck pebbles and sand in the core, the saw is maintained from premature wear;
• the quality of the chip material increases;
• some enterprises do not take a hill with non-spoken logs;
• the error of the results when sorting the forest with electronics is reduced.

Types of wood cutting

First of all, you need to decide with the type of cutting - there are several of them. Tangential - incision goes on tangential to annual rings, the surface is obtained with patterns in the form of rings, arches. Boards obtained in this way, cheaper, but have high percentages of drying and swelling.

Radial - incision along the radius, perpendicular to annual rings, drawing is uniform, the output of the board is small, but it is characterized by increased quality and greater strength.

Rustic - is carried out at any angle, visible defects, swirls, swaths, etc.

Methods of sawing

For each specific case, the method of sawing is selected.

Slissed - the most economical, almost without waste, a high percentage of finished forest. At the exit you do not edged boards And two horses.

With the brusade - first get a two-killed timber, unedged boards, two horses. Then the timber is poured perpendicular to the cutting boards, two unedged boards and two horses are obtained.

The sector - first logs on the 4-8 sectors, and then each of them for radial or tangential materials. Sometimes several umbered boards are peeping in the center.

The divorce-segment - with such a pickle in the center of the trunk, two or several unedged boards drink, and cutting one-sided boards are cut from the segments.

Brouso-segment - similar to the divorced-segment, only in the middle of the log is cut off a two-toned bar, which is then cut into the edged boards. Large lumber output percentage.

Circular - after drank one or more unedged boards, the log turns 90 0 and the following boards are unlocked. This method is applied when a large log is affected in the center of the none rot. With it, it is separated healthy from low-quality wood.

The aggregate - with the use of milling tools and circular saws at the same time as high-quality lumber is obtained at the output of the technological chip (instead of hill and rail). Such comprehensive processing of the forest allows you to rationally use raw materials and labor costs. It turns out the waste-free production of the finished lumber.

Required tool

The choice of tools depends on the number of planned finished products, its quality and size of products. Most often cutting circular saw. At certain stages of production requires the use of special machines.

Circular saw performs accurate cuts in any directions, perfectly copes with any log sizes, suitable for professional and home use.

It is used for home use when a small amount of sawn timber should be prepared. It is easier to perform hard work with chainsaws than to buy expensive equipment. It will be needed only special nozzle, fixer for trunk and guide cuts.

Corn removal machines. They are quite expensive, but with regular use in the enterprise where large amounts of work are performed, quickly payback. They are not necessarily used, but it is desirable because it is possible to obtain a number of economic advantages and amenities in the production process.

And also need:

• Disk machine - to obtain unedged outlet materials from the forest.
• The belt sawmaker gives the release of high-quality lumber and low waste percentage.
• Frame sawmason - does not need the foundation and it can be installed directly in the fields of logging.
• Universal machines are able to give at the exit even from low-grade wood high-quality material.

In enterprises with mass production, whole complexes are installed to obtain ultroop and high-quality products modern equipment, and sawing the forest is carried out any complexity.

Technological cutting card

For the calculation of the optimal percentage of obtaining ready-made sawn timber, the sawing map is compiled. These calculations can be made independently or take advantage of a special computer Program. Such information can still be obtained in the usual directory, where information on the conduct of sawmills is collected.

Card cutting allows you to determine how much will be at the output finished productsWhat percentage of waste will go for processing. According to these data, it is possible to determine the final cost of products. The result can largely depend on the forest breed. There are some measures to increase the percentage of lumber output.

The percentage of lumber at the exit is ready for use in work, useful wood. Waste - Raw materials for receiving plate MDF., Chipboard, fiberboard. These volumes will depend on the diameter of the tree, types of manufactured products from solid wood, sawing option.

Percentage of roundabout

The exact calculation of each cubic meter of wood - expensive natural raw materials is important at each woodworking enterprise. Round forest cubic meters are calculated in several ways.

In terms of transport. On each type of transport, the forest cube is calculated and installed. For example, 70.5 cubes of round wood fitted in the carriage. Then in three cars there will be 22.5 cubes. This method of calculation accelerates the reception of raw materials, especially important when large quantities Received cargo. But there is a big error in the results of calculations in this way.

Calculation of one barrel. If all logging consists of the same in size of the timber, then calculating the volume of one, you can count them all and multiply into the cubage of one. This method is more accurate, but it takes a lot of time and attracting more workers for receiving the cargo.

Automated systems with measuring frames. These measurements give higher percentages of accuracy than those conducted by people. When logs pass through the measuring frame, then all thickens and the curvature of the trunk and even the bitch are taken into account. In this case, you can immediately sort the trunks.

The method of calculation by multiplying the volume on the coefficient. The height is measured, the width, the length of the stack and is multiplied by the coefficient. Such a quick count, but with a low percentage of accuracy. It is used when it is necessary to urgently determine the number of cubic meters.

Dependence of the final percentage of exit from sawing technology

To increase the output of finished lumber, it is necessary to optimize the sawing process itself. This is especially true of working with harvesting having curvature, damage or other flaws:

• First you need to choose and launch only high-quality forest into production.
• Then choose trunks with damage on the ends (rot, cracks) and make the reflection of these places.
• With the trunk section with a rotten core, it is necessary to remove it, and the remaining wood is cut on lumber. They will be shorter, but better quality.
• And also for obtaining high-quality boards, the method of circular sawing is suitable.
• Above the percentage of exit when sawing timber with a large diameter.

The output also depends on the quality of the log, wood varieties used by the equipment. New high-quality, well-minded equipment allows you to handle trunks almost without loss.

Forest cutting efficiency can be increased if special measures take in advance. For this you need to produce accurate calculations With digital programs. If you manually do this, then the percentage of marriage at the output will be greater. Should consider in advance that from coniferous rocks The forests turn out more percentage at the outlet of the sawn timber. Because they have smooth trunks, large, less susceptible to rotting and therefore almost without marriage. From the deciduous large volume is often selected.

For the rational use of wood it is better to take short login. But in domestic production, it is usually taken for sawing trunks with a length of 4 m or more. Because of their curvature at the exit, a large percentage of marriage is obtained.