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佛山市南海区正启机械厂
地址:广东省佛山市南海区狮山镇塘头工业园15号
手机:18676544199 张小姐
13702256366 董先生
13927744199 欧先生
电话/传真:0757-81182245
公司网站:http://www.fsjingjia.com

News 新闻资讯 您所在的位置是:新闻资讯-Finger, which has several tools, characteristics?
Finger, which has several tools, characteristics?

1 to reduce power consumption and to work smoothly, the overall command of the cutter pitch is equal to 2 times the pitch. A tooth gear relative to the other column, the displacement is equal to the command of the pitch. In order to put out the provisions of the width of the workpiece, the cutter can be composed of 2-4 sets of cutters. This cutter tooth not too long for processing the command. Overall milling with high precision, reliable, secure, cutter diameter is small, convenient installation, but milling manufacture of complex, high processing costs. Production in the finger, usually the whole mill in Germany.

2 finger cutter blade according to the number of edge can be divided into two and four blade two. More than the number of tool edge, the average cutting force and cutting power increase, but the vibration decreases and the cutting process can improve the cutting surface finish.

3 by a long finger cutter tooth size, tooth cutter can be divided into short and long-tooth cutter two. Tooth length 4-15mm, tooth top width of 0.2-0.4mm of tooth milling cutter for short, and the cutter teeth grow up to 15mm long in tooth cutter. Short tooth cutter's advantages are: less finger-material loss, the use of the command when the bottom of a large pressure crack-free glue, cutting power to save. At present, widely used short-tooth cutter.

4 by the use of finger joint cutter can be divided into structural and non-structural timber timber milling cutter. Generally based on the tooth pitch of the top width b and the ratio of v to distinguish between t, v ≤ 0.18 for structural timber mills, and 0.18 <v ≤ 0.25 for non-structural wood cutter. Structural timber cutter can also be used for non-structural timber finger processing. You can choose from the following aspects of the profile parameters of finger joint cutter

1) Tooth length: the length of the finger command and have a great impact strength, finger strength with increasing of long teeth, but the command length is large, the material loss big finger, cutting power, and tooth length by gluing pressure limit, when the length of laminated conductor pressure using a large, commanding the bottom of the easy to crack, but reduced finger strength, affecting the appearance of appearance. Generally in the 4-60mm long tooth range selected. In recent years, at home and abroad using a short finger-tooth technology, tooth length 4-15mm. It has the advantage of material loss, can be great bonding pressure, saving power and so on. Therefore, the finger processing preferred short tooth finger. Structural timber finger finger strength required, refer to the length can not be too small tenon, timber frame generally require more than the 10.5mm, 12mm truss above the timber.

2) the slope command: finger strength decreases with the command of the slope of the increase, but do not command the slope is too small, not too much. When the conductor pitch more than 1 / 8, a sharp decline in finger strength. If the tooth length is constant, through the small ramp, then the command thinning, finger the number of teeth increase, affecting the finger strength. Inclined to spend another small, thin tool, command processing tools are easily damaged, and refers to the tongue side of the workpiece when the command pressure is easy to produce the phenomenon of bad glue. Considering these factors, usually considered the slope of the command should be 1/7.5, 1 / 12 more suitable to withstand tensile stress of truss timber requirements finger command with a smaller slope, usually at about 1/11.4.

3) Pitch: pitch by the command of the slope, the workpiece width (or thickness) contained in the command of the teeth and the tooth at the top of the situation to decide. If the command of a certain slope, the smaller the pitch, the decrease in proportion to the length of the command; if unlimited command of pitch decreases, this combination on a similar termination, the bonding strength is close to zero. To make maximum finger strength, general tooth pitch should be the appropriate length of 1/3-1/4.

4) tooth top width: command of the tooth top width to be as small as possible, but easy to overheat the tool burn. Meanwhile, the same tooth length, tooth top width is small, the pitch becomes smaller, the film thickness decreases cutter, an increase of milling manufacturing difficulties. Choose non-structural timber finger-tooth top width of a large number of such processing the command looks beautiful. General tooth top width of 0.2-2.7mm.