The main indicators of any woodworking production are quality work and productivity. To fulfill these conditions, you must have the appropriate equipment. One such equipment is a four-sided woodworking machine.
Design and scope
Relatively recently, designs that combine several operations have appeared in the wood processing industry. Processing wooden products this happens on four sides at once. This equipment is most often used for milling and jointing.
The woodworking machine consists of:
- spindle section;
- part feed unit;
- equipment parameter control systems.
On one side there can be several processing heads, which reduces the cost of manufactured products and reduces the time for performing a certain operation.
The four-sided machine is designed to perform the following operations:
- Milling. Instead of planing shafts, disk cutters are installed on the working heads of the equipment, which makes it possible to do longitudinal milling. To carry out processing with finger cutters, it is necessary to periodically stop the parts, however, this is not provided for by the design;
- Planing and jointing. This can be done using shafts with blades of a certain configuration installed on them. The design of the machine makes it possible to simultaneously perform finishing and roughing;
- Reaming and profiling.
Most often, such models are used to create lumber with a flat surface or profile. All the work can be done in one pass.
Using four-sided machines you can make products such as:
Classification and differences of machines
All four-sided woodworking machines can be divided into:
- thicknesser planer;
- longitudinal milling.
Longitudinal milling machine used for cutting along the length of the material to the desired size. This woodworking equipment can perform profiling of any complexity. The lower shaft of the knife, taking into account the thickness of the wood being planed, moves together with the tabletop in the vertical direction.
Thicknesser used to plan a part to a specified thickness on both sides simultaneously. It is initially planing, but has additional function profiling. Such a device can produce shallow profiling with a simple locking design of a small beam.
Processing wood on four sides simultaneously helps save time, increasing production productivity. That is why in the construction and furniture sectors four-sided machines are the optimal equipment.
Main criteria for selection
Considering that a machine for complex woodworking is expensive equipment, when choosing it it is important to take into account technical specifications and all the nuances of the design. Equipment performance depends on:
- speeds and timber feeding systems;
- degree of processing and dimensions.
Choosing the optimal machine model, you should pay attention to:
In order to accurately position the workpieces relative to the machining center, a sensor system is required. In addition, when analyzing the model, you should take into account the cost of components, the degree of remoteness of the manufacturer’s service centers and warranty conditions.
Design of machine components
To understand the operating principle of the equipment, you need to consider design features machine, which includes many nodes.
Some equipment models include a joyter, a hydraulic spindle and a number of working tools. Such devices sharpen knives directly during product processing.
Purchase of a machine
Longitudinal milling machine can be purchased at specialized construction stores, but it is better to buy it directly from the manufacturer (if we are talking about domestic producers). You can rent equipment or purchase it in installments.
Before purchasing equipment, you need to pay attention to the following main points:
- performance;
- accuracy;
- reliability of operation;
- availability of service;
- equipment price.
If a four-sided wood saw will be an addition to an existing line, it is important to consider its dimensions. When purchasing, you must take into account the technical parameters and combination various options processing, weight of equipment and speed of work.
Some companies providing such equipment are still little known. Price for their products relatively low, but the quality is adequate. For example, the German brand Beaver. The cost of their products is low due to the fact that production is located in Taiwan and China. But parts of the assembly are made in Germany.
When choosing equipment, you should not consider cheap Chinese-made models. Please note that it will be very difficult to find spare parts for them.
Service
Over time, any machine tends to break down and its component parts wear out. In order to have fewer interruptions in work for such reasons, it is advisable to choose the equipment that is most durable and wear-resistant.
In addition to productivity, it is important that the machine is as safe as possible. Therefore, the presence of limit switches, electric brakes and a metal protective casing with sound insulation is provided.
Processing of products on a machine must be as accurate and high quality as possible. For these purposes, it is important that the device has statistical and dynamic balancing of all fixations of parts.
When operating the equipment, you must adhere to the rules specified in the instructions for it. You cannot process workpieces that are larger in size than those provided for by the rules. It is imperative to carry out preventive and renovation work to keep equipment in working order.
It is very important to install the machine correctly, taking into account not only its dimensions and weight, but also the size of the wooden blanks. The operator should not have to deal with any difficulties associated with feeding the material.
Pros and cons of equipment
One of the most positive qualities four-sided machines - high productivity. To achieve optimal results, the design must be equipped with a software numerical control unit. Then the influence of the human factor will be minimal.
The conditions for the correct preparation of the program must be met, and the workpiece being processed must be accurately measured. In its optimal configuration, the equipment is designed for processing cylindrical workpieces and rectangular beams. Jointing and milling of sheet materials can be performed on both sides. Features of the operation of machines of this type are the following factors:
The main disadvantages of woodworking four-sided machines are the high cost and complexity of setup. However, in production line conditions these indicators are not significant.
On the Stankoff.RU website you can buy four-sided woodworking machines from leading manufacturers: Beaver, Griggio, Logosol, Woodtec, ZMM Stomana and other Russian, Chinese, Taiwanese manufacturers. In stock and on order, more than 123 models of 4-sided machines according to best prices. Only great deals With detailed descriptions and photo. Check prices with managers.
4-sided machines. Benefits of use
On furniture production Natural wood is often used to create high-quality products. Processing of boards and bars is carried out using special four-sided machines presented in our catalog.
The system allows you to obtain a high-quality part based on a wooden blank in one pass without additional processing. Modern four-sided woodworking machines offered by our company can withstand considerable loads. Thanks to the special design, all manipulations are carried out in the internal chamber of the machine. It does not vibrate during operation. The maximum and minimum part size depends on the characteristics of the specific model.
The feeding belt is equipped with special lower and upper rollers along which the workpiece moves, and side pressure strips that secure the board or timber.
The range of applications of such equipment is wide:
- woodworking enterprises;
- furniture production;
- production of wooden blanks for construction;
- production of molded products.
Using a four-sided machine, you can significantly speed up production process, make it rational, efficient, cost-effective. Impeccable planing quality is ensured using modern, multifunctional spindles. 4-spindle and 5-spindle machines are in demand.
Each of the four sides of a wooden piece can be processed differently. The maximum planing depth depends on the specific equipment model. Powerful engines ensure uninterrupted operation of the system. The possibility of the workpiece being pushed out during processing is eliminated. The machine does not vibrate when processing massive large parts, thanks to the solid cast iron bed that can withstand impressive loads.
All machines are offered as standard. The consumer can order additional options depending on specific needs.
Where to buy a four-sided machine
To buy a four-sided machine, you need to contact a reliable supplier of high-quality equipment. The range of units is wide. It is advisable to use the recommendations of specialists to make informed choice. Additionally, delivery, assembly, and commissioning services are provided. If necessary, you can purchase spare parts, additional components, which wide range offered by the supplier.
Units from leading manufacturers have been in operation for a long time and are characterized by a high degree of reliability and safety. When choosing four-sided machines, you should pay attention to such criteria as maximum and minimum dimensions workpieces, thickness of the removed layer, processing depth, number of spindles.
Leasing services are offered. The client receives equipment for temporary use with the possibility of subsequent redemption at the residual value. Such offers are of interest to many consumers. Such services are different from equipment rental. Find out more about all the possibilities potential clients may, in consultation with the company manager. You can establish furniture and woodworking production by collaborating with leading suppliers of relevant equipment.
Price: 51,000 USD (RUB 3,227,848)
Price: 0 USD (0 ₽)
Professional series. The perfect combination of high reliability of a woodworking machine with...
Price: 40,500 USD (RUB 2,563,291)
An excellent combination of high reliability of a woodworking machine with high technical...
Are you looking for productive and inexpensive equipment that allows you to work with any type of wood? The products from the TekhLesProm company catalog fully satisfy these requirements. The company sells four-sided longitudinal milling machines that combine high resource with precision work.
Application area of four-sided longitudinal milling machines
The equipment allows you to simultaneously perform flat and profile processing of four surfaces of a wooden workpiece. The machine has a massive frame on which a table, cutting tool and feed mechanisms are fixed. The equipment is driven by electric motors.
Four-sided longitudinal milling machines are universal devices that are most widely used when working with the following products:
- skirting boards;
- joinery;
- timber for window and door frames;
- solid wood flooring.
TekhLesProm specialists will provide qualified assistance in selecting equipment for woodworking, and will also take care of delivery, installation and commissioning.
Popular Products
Price: 29,200 USD (RUB 1,848,101)
Price: 118,000 USD (RUB 7,468,354)
On four-sided longitudinal milling machines, flat and profile processing of straight workpieces from four sides to size is carried out in one pass. Machines in this group, depending on the milling width, are divided into light (moulding) for processing profile furniture and joinery parts up to 160 mm wide, medium for processing flat joinery and profile parts up to 250 mm wide, and heavy for processing molded products and mass-produced lumber up to width 650 mm.
In four-sided machines, operating according to the most common planer-thicknesser design, the horizontal spindle creates a base surface on the bottom surface of the workpiece, so the workpiece must pass over this spindle without being deformed. In some machines and automatic lines To prevent deformation of the workpiece, various devices are used, for example, to create an intermediate base, replace movable basing on the face with rigid basing on the edges, etc.
When using an intermediate base, the machine is equipped with an additional cutter head, which processes the workpiece not over the entire face, but mills two shallow (2...3 mm) grooves on the edges. A significant reduction in cutting forces, and therefore in feed resistance forces, makes it possible to reduce the traction force. Therefore, when processing such grooves, it is possible to significantly reduce the pressure of the feed elements on the wood. Using the intermediate base produced in this way, the workpiece is positioned on a special mounting surface of the machine when processing the entire surface with the lower milling head. Next, basing occurs, as usual, over the entire lower surface.
Depending on the complexity of the profile, surface roughness and processing accuracy, machines can have up to 10 spindles. The right vertical spindle creates a reference surface on the side of the part. The left vertical and upper horizontal spindles of four-sided machines process the part to size, like thicknesser shafts. If required, profiling can also be performed. Vertical spindles can be located opposite each other or in series. In medium and heavy machines there are additional horizontal and vertical spindles for producing a profile on either side of the part or dividing it using circular saws into several parts along the width.
In light machines, horizontal and vertical cutter heads are cantilever mounted on a unified support. In medium and heavy machines, to give greater rigidity, the cutter heads are located between supports, one of which is made removable for quick tool replacement.
The feed mechanisms of four-sided longitudinal milling machines are divided into two main groups: concentrated and distributed. In a concentrated pattern, the feed mechanism is located in front of the cutter heads and the workpieces pass through the machine, pushing each other. The drive of the upper and lower feed rollers is carried out from an electric motor through a V-belt variator, a worm gearbox, chain and gear drives. The lateral clamping of the workpiece to the guide rulers is first carried out by flat springs, then by roller clamps, and the upper clamp is carried out by spring-loaded rollers.
Since, according to a concentrated feeding pattern, the traction force is developed by only two pairs of rollers, a large amount of their pressure is required, which leads to crushing and slipping of the part. Therefore, with a concentrated scheme, roller-conveyor and two-conveyor feeds are more reliable. Since the workpieces according to this scheme pass through the machine, pushing each other, sufficient precision in the preliminary trimming of their ends is necessary.
According to the distributed scheme, there are significantly more feed rollers (8...14), and they are distributed throughout the machine. Under these conditions, the feed force developed by each roller is sufficient to overcome the feed resistance forces of just one cutter head. The design of the rollers allows processing workpieces of short length (from 200 mm). Distributed feed is especially reliable when machining parts with oblique ends. The working surface of the rollers is corrugated, smooth metal or rubberized.
The drive of the feed rollers is carried out on most machines from an electric motor (for heavy ones - most often from a hydraulic motor) through a V-belt variator, worm gearboxes and double chain drives or cardan shafts. The feed speed is usually adjusted smoothly, either by a variator, or, more promisingly, electronically. The feed speed for light and medium four-sided machines ranges from 5...45 m/min, for heavy machines – up to 80 and even up to 200 m/min. Manual loading of parts into the machine at speeds above 30 m/min is impossible, so four-sided machines are equipped with automatic loading devices.
In order to increase the traction capacity of the feed mechanism by reducing the friction of workpieces on the base surfaces of the machine at the entry of the workpiece into the machine or at the exit finished product, sometimes additional lower drive rollers are installed. For the same purpose, holes are made in the tables of some machines through which compressed air is supplied under a pressure of 0.2–0.3 MPa, which creates the effect of an “air cushion”.
For four-sided machines equipped with a large number of spindles, clamping and feeding devices, it is important to ensure quick changeover and adjustment of the machine. In modern machines, all adjustment and control elements are placed on the front side (service side), all upper cutter heads and clamping elements are made in one block. Depending on the thickness of the product, the height of the block is adjusted simultaneously using a servomotor through worm gears and screw pairs. To control the position of the block, reading devices are used with an accuracy of up to 0.1 mm. To process parts that have an asymmetrical cross-section, the block can be tilted at an angle of up to 30 degrees. In addition, the upper cutter heads can be fine-tuned independently. The processing width is also set by a measuring device that takes into account the diameter of the tool used.
Four-sided machines can be equipped with a programmable processor system that allows you to store large number sizes of processed parts. When the appropriate part number is entered, the left and top spindles of the machine move to the appropriate positions and the machine is ready for use. As a rule, a machine equipped with such a system does not require trial workpieces for adjustment.
Almost all four-sided machines currently produced are equipped with sound-absorbing casings with windows for viewing the working parts of the machine during operation. Lubrication of most friction units of machine tools, as a rule, is carried out through plastic tubes from grease fittings connected to the central lubrication unit.
Loading...
