Woodworking engraving machine fast engraving tips

First, before the engraving machine starts working, we should carefully check the spelling of the text in the engraving machine engraving project. If possible, print it out and confirm with the customer. Secondly, the engravings are protected: the engravings are often misplaced during the engraving process, and we are often annoyed to tell our customers that their items have been damaged during the engraving process.
Again, to avoid these problems, we can try the following:
     1. Check if the pliers or chucks selected for engraving are used incorrectly? At the same time, the wear of the pliers or chuck of the wood engraving machine can also lead to the misalignment of the engraved objects. If the pliers or the chuck is too tight, the moment the blade touches the engraved object will also cause the engraving to pop out.
     2. For those irregularly shaped engraved objects, the surface seems to have been fixed very tightly, and will also sway back and forth when subjected to downforce. At this point, you can try to put some scrap under the object to increase friction. The other is to keep the package that comes with the item. Although the object is irregularly shaped, the package itself may be very regular and easy to be fixed. Together with a small strip, the irregularly shaped object is very It is easy to be fixed. Or try to fix the part of the rule and discard its irregular parts.
     3. If the downforce to be engraved is large, consider whether you need to use a cone-shaped nose. If the diamond head of the engraving machine moves too much during the engraving process, the pressure on the side of the tool will cause the engraving. The movement. If you use an incorrect diamond knife, it will cause the same problem. A 90 or 100 degree diamond knife will drill deep into the material, causing the material to move during the engraving process.
     4. Since the woodworking engraving machine is often equipped with multi-function pliers or chucks, and they are made of iron, it is easy to damage the engraved objects or cause them to slip during the engraving process. Then use some rubber caps or rubber pipes. It is helpful to fix the engraved object.
     5. For engraving plastic patterns, you can attach the transfer tape to the back of the engraved object, then spray the liquid glue on the side with the tape attached, and then attach it to a surface that can be discarded. This avoids the use of double-sided. Glue, leaving a surface that is difficult to clean. Because the transfer tape is easy to peel and clean. Using a special engraved strap, the side of the strap is more viscous than the other side, so the plate can be moved or replaced at will.

Woodworking cutter knowledge

First, the nature of the material being cut
         Wood cutting objects are solid wood and wood composites. Solid wood can be divided into soft materials, hard materials and modified wood; wooden composite materials include plywood, veneer lumber, particle board, oriented strand board, large particle board, gypsum particle board, cement particle board, hard fiber board, medium density Fiberboard, high-density fiberboard, blockboard, rubber composites, etc. Some wood or wood composite parts are also treated with one-sided or double-sided veneers.
Second, the cutting direction
         In solid wood cutting, the wood cutting is divided into longitudinal, transverse, end and longitudinal, longitudinal and transverse directions according to the direction of the blade relative to the wood fiber.
Third, the tool rotation direction and feed direction
         The tilting direction of the cutting edge on the tool is determined according to the direction of rotation of the machine tool shaft and the direction in which the wood workpiece is fed.
Fourth, the stability of the tool and the workpiece
         The stability of the tool and the workpiece during the cutting process includes several aspects. The stability of the workpiece means that the wood workpiece is smoothly fed during the cutting process without jumping. Measures taken to enhance the stability of the workpiece mainly reduce the center of gravity of the workpiece and increase the contact area.
Fifth, processing surface quality requirements
Wood workpiece surface quality includes surface roughness, geometry and shape position accuracy.
Milling cutter selection
First, determine the main technical parameters of the milling cutter:
        Main parameters of woodworking cutter: tool outer diameter, machining thickness, central aperture
Other technical parameters: number of teeth, direction of rotation, speed of rotation, feed rate, clamping method, tooth material.
Second, choose the structure of the milling cutter
         According to the nature and requirements of the cutting object, the overall milling cutter, the welding integral milling cutter, the assembly milling cutter and the combined milling cutter are selected from the technical and economic aspects.
Third, the choice of milling cutter rotation direction
         The direction of rotation of the milling cutter is determined according to the direction of rotation of the machining spindle and the relative position of the cutter shaft and the feed workpiece. Whether it is an integral milling cutter or an assembly milling cutter, the inclination of the cutting edge relative to the radius of the milling cutter determines the rotation of the milling cutter. direction.
Fourth, the choice of cutting tool cutting
         The cutting amount of the milling cutter includes the cutting speed of the milling cutter, the feed rate of the workpiece and the milling depth. The cutting speed of the milling cutter depends on the milling cutter speed and the radius of the milling cutter. The feed rate of the workpiece depends on the quality of the machined surface. The surface roughness of the workpiece to be cut depends largely on the feed per tooth of the milling cutter during the cutting process. The feed per tooth is too large, the machining surface is too rough, the feed per tooth is too small, and the machined surface will burn. The coke phenomenon, therefore, the feed per tooth of the milling cutter needs to be appropriate.
Fifth, the stability of milling cutter operation
         The stability of the milling cutter is the basis for the machining accuracy and the quality of the machined surface. This includes two aspects: First, the milling cutter is vibrated by external force during cutting; second, the milling cutter is deformed by external force.
Sixth, the safety of milling cutter processing
         The safety of milling machining includes milling speed limit, chip thickness limitation, profile cutter height limit and assembly cutter blade thickness and extension limit.
         Wood cutting is characterized by high-speed cutting. The turning speed of the milling cutter is more than 3000 rpm. High-speed cutting provides high productivity and smooth surface quality for wood cutting. At the same time, it also brings a series of safety problems. Therefore, when the spindle speed of the milling machine reaches 9000 rpm, the assembly milling cutter should be prohibited except for the shank milling cutter with a tool smaller than 16 mm. Conduct a rigorous inspection of the flaw.
Chip thickness limitation is a necessary measure to ensure that the milling cutter feeds too much and causes a serious overload of the milling cutter.
         For the forming cutter, the contour contour height value is closely related to the milling cutter clamping method, the cutting workpiece thickness, and the diameter of the milling cutter. After the thickness of the machined workpiece, the diameter of the milling cutter and the central aperture are determined, the height of the cutter profile reflects the strength and stiffness of the milling cutter itself and the ability to withstand the cutting resistance. Therefore, there is a need to limit the height of the profile to ensure the safety of the cutter.