Precision cutting saw scribing saw blade what does it mean?

Precision table saw operating instructions (a)

A, operation preparation

1, check the personal clothing to wear a "three tight" neckline tight, tight sleeves, tight shirt hem tight, work is strictly prohibited to wear gloves.

2, check the individual's mood, mental strength is normal, there is no emotional abnormality or thought is not focused.

3, remove the dust on the surface of the machine, check the power line has no insulation off, the gate knife has no missing pieces.

4, turn on the power to raise the saw blade, check the saw blade has no abnormality, the work area has no debris, in order to prevent slippery mix down.

B, operating procedures

1, first start the main saw blade: first pull the knob from 0 in the clockwise direction to the first sound stay 3-5 seconds, and then continue to pull until the second sound. Then start the saw blade, clockwise rotation of the knob to control the saw blade can be.

2, adjust the saw blade: the main saw blade above the surface of the processed board 5MM, sawing depth is generally 2MM, slot saw saw road is best to be consistent with the main saw, if the saw blade needs to be the angle, you can rotate the angle wheel with the angle plate pointer display to achieve the desired angle.

3, the feed speed should not be too large, or cause damage to the machine and saw blade.

4, start the main saw blade, the knob must be in place, can not be placed in the middle of the gear to work, otherwise it may burn the generator.

5, the work process, pay attention to whether the machine found abnormal phenomena (smoke, noise, heat, sparks), there should be immediately shut down for maintenance.

6, saw blade speed has 3 gears: 3000 rpm, 4100 rpm, 5600 rpm, can be selected according to need. According to the size of the open material to choose the positioning method sample (such as the right side of the gear positioning, the front of the transverse gear positioning block positioning)

7, cutting, the sheet must be close to the guide plate, push the saw can not move the sheet, and according to the thickness of the sheet on the material to regulate the feed speed, keep moving when receiving the sheet, sheet open 20CM before you can take the hand to pick up the material.

8, the processing process to promote the long sheet, the right side of the gear must extend over the saw blade.

9, long sheet material to be processed into short material again, the right side of the gear can not exceed the saw blade.

10, in the front cross-feeding also need the right plate at the same time, the right side of the plate can not be longer than the left main push table plate.

11, push less than 7CM of the plate material when the first processing length to more than 20 centimeters, and then back to the opposite direction, can not be pushed by hand, to use a wooden stick, pressure ruler to push.

Precision Push Table Saw Operating Instructions (II)

C, Notes

1, the end of the work, the first to close the slot saw blade, and then close the main saw blade, cut off the power supply. The operator can leave only after the machine stops completely.

2, without training shall not be on duty, this post is strictly prohibited to operate under the influence of alcohol. Non-staff of this post is strictly prohibited to operate.

D, maintenance specifications

1, before starting any maintenance work, should be turned off the main switch, cut off the power supply and hanging "maintenance, forbidden to close the gate" sign, to take certain safety inspection measures before working, after each job, turn off the main switch.

2, cleaning machine parts, careful use or not use flammable melt. Disassemble or trap the saw blade before engaging in maintenance work.

3, according to the requirements of machine use and operating procedures, machine maintenance graded maintenance, primary maintenance (within 1 working day) and secondary maintenance (mid-term maintenance).

The first level of maintenance:

(1) cleaning the surface: each shift on the machine surface cleaning, every 1 working day to fully clean the surface of the equipment.

(2) safety inspection: check whether the components are firmly installed, listen to the rotation sound is normal, every 1 working day to fully check the firmness and reliability of all the fasteners, including a variety of utility screws, nuts are tightened.

(3) transmission system check: daily attention to gear transmission sound is normal, check all kinds of switches, components are flexible. Gears should be lubricated.

Second level maintenance:

(1) cleaning: clean up debris in the gear box, cleaning oil bottom dirt.

(2) replacement of wearing parts, replacement of circuit components in the coked or oxidized contacts.

(3) motor overhaul: check whether the wiring is good, check the fixed parts and grounding wire, circuit current is normal. Coupling is tight, measuring insulation resistance is normal.

II. Precision cutting saw saw blade the correct choice of skills

Melamine plate ordinary machine to do completely without chipping is very difficult to do, generally need to use precision push table saw (also called precision cutting saw) sawing.

One, precision cutting saw to be completed through two steps. First, use the bottom slot saw blade to scribe the slot, and then use the main saw blade to cut off.

Two, the choice of the bottom slot saw blade is based on the design of the push table saw. If you can adjust the height of the table saw with a single slotted saw blade can be achieved thickness and the main saw uniformity, general specifications: OD 120MM * number of teeth 24T * thickness (2.8-3.6) * aperture 20/22; if not adjustable, you need to use a double slotted saw blade, through the gasket to achieve the thickness of the main saw uniformity, the general specifications are: OD 120MM * number of teeth (12 12) T diamonds Saw blade substrate * thickness (2.8-3.6) * aperture 20/22, (Note 12 12 means that the number of teeth of each piece of double-blade are 12 teeth). Of course, using a single slotted saw blade through the height adjustment is sometimes not easy to achieve complete uniformity, so there are many people directly choose double slotted saw blade instead, the adjustment is relatively convenient and simple, but the price of double slotted saw blade is also relatively high.

Three, cutting board saw main saw blade selection. Thickness is basically all 3.2MM, aperture are generally 30 aperture, outside diameter of more than 305MM (part of the soil saw is 250MM), in order to achieve a smoother cutting surface, the general selection of 96 teeth of the majority, but the price is relatively high, if the number of teeth is less than enough to suggest that do not have to be 96 teeth, you can choose to, 72 teeth or 60 teeth can also be used. The tooth shape is generally more flat teeth with ladder to achieve a smooth cutting surface, and less prone to chipping. So generally as follows: OD 305MM * teeth 96T * thickness 3.2 * aperture 30.

Woodworking saw blade commonly called: woodworking saw blade, woodworking circular saw blade, woodworking alloy saw blade, woodworking alloy saw blade, woodworking carbide saw blade, woodworking carbide saw blade, woodcutting saw blade and so on.

Tooth shape of saw blades: left and right teeth, left and right flat teeth, left and right flat teeth, ladder flat teeth.

Use and characteristics: suitable for cutting all kinds of dry softwood, hardwood, fiberboard, medium fiberboard, medium density board, high density board, plywood, blockboard, core board, artificial board, laminate, particle board, veneer, fire prevention boards, triple hydroxide ammonia, triple polycyanamide boards, bamboo wood, bamboo plywood, bamboo flooring, bamboo chopping boards, bamboo products and so on.

Woodworking saw blades longitudinal cutting can choose different outer diameter in the number of teeth less saw blades, cutting resistance is small, high efficiency, row cutting smooth, woodworking saw blades crosscutting can choose different outer diameter in the number of teeth more saw blades, high cutting accuracy, smooth cutting surface. Woodworking saw blades longitudinal cutting, cross-section of both can choose a different outer diameter in the number of teeth moderate saw blade. Density board, veneer board can be selected ladder flat tooth tooth shape.

Woodworking saw blades of high quality products: high cutting precision, neat cutting seam, smooth cutting surface, cutting noise, the substrate is not deformed, cutting long service life.

Woodworking saw blade substandard products: cutting seam is not straight, cutting seam is not flush, cutting surface scar, cutting resistance, saw blade vibration, noise, whistling, chipping, broken teeth, tooth loss, deformation, short service life.

A. Selection of miter saw blade diameter

The diameter of the saw blade is related to the sawing equipment used and the thickness of the workpiece. Saw blade diameter is small, cutting speed is relatively low; saw blade diameter is large on the saw blade and sawing equipment requirements to be high, while sawing efficiency is also high. The outer diameter of the saw blade according to different circular saw models to choose to use the diameter of the saw blade. The diameter of the standard parts are: 110MM (4 inches), 150MM (6 inches), 180MM (7 inches), 200MM (8 inches), 230MM (9 inches), 250MM (10 inches), 300MM (12 inches), 350MM (14 inches), 400MM (16 inches), 450MM (18 inches), 500MM (20 inches), etc., the saw blade of the miter saws diameter is mostly designed between 120MM-400MM.

B. Selection of the number of teeth of the miter saw blade

The number of teeth of the saw blade, generally speaking, the more teeth, the more cutting edges per unit of time, the better the cutting performance, but the number of cutting teeth requires more carbide, the price of the saw blade is high, but the saw teeth are too dense, the amount of chips between the teeth becomes smaller, which is easy to cause the blade to heat up; in addition to the saw teeth are too much, when the feed is not appropriate with, then, the cutting amount of each tooth is very little, which will aggravate the cutting edge. In addition, too many teeth, when the feed is not properly coordinated, the amount of each tooth is very small, will intensify the friction between the edge and the workpiece, affecting the service life of the blade. Usually the spacing between the teeth is 15-25mm, and the number of teeth should be reasonable according to the material to be sawed.

C. Selection of the thickness of woodworking saw blades

The thickness of the saw blade from the theory that we hope that the thinner the saw blade the better, the saw seam is actually a consumption. The material of the saw blade substrate and the manufacturing process of the saw blade determines the thickness of the saw blade, the thickness is too thin, the saw blade is easy to shake when working, affecting the effect of cutting. Selection of the thickness of the saw blade should be from the stability of the saw blade work and sawing materials to consider. Some special-purpose materials require the thickness is also specific, multi-blade saw blade is mostly thin.

The selection of miter saw blade tooth shape

The commonly used tooth shape of miter saw blades are left and right teeth (alternate teeth), flat teeth, ladder flat teeth (high and low teeth), inverted trapezoidal teeth (inverted taper teeth), dovetail teeth (hump teeth), as well as rare industrial-grade three left and one right, left and right, left and right flat teeth and so on.

1. Left and right teeth are the most widely used, fast cutting speed, relatively simple repair and grinding. Suitable for cutting and crosscutting all kinds of soft and hard solid wood profiles and density boards, multi-layer boards, particle boards and so on. Equipped with anti-bounce force protection teeth of the left and right teeth that is the dovetail teeth, suitable for longitudinal cutting of a variety of panels with tree knots; with a negative front angle of the left and right tooth saw blade due to the sharp teeth, sawing quality is good, usually used for veneer panel sawing.

2. Flat tooth saw kerf is rougher, the cutting speed is slower, the most simple grinding. Mainly used for ordinary wood sawing, lower cost, mostly used for smaller diameter aluminum saw blade to keep cutting to reduce sticking, or used for slotting saw blade to keep the bottom of the slot flat.

3. The trapezoidal flat tooth is a combination of trapezoidal and flat teeth, grinding is more complex, when sawing can reduce the phenomenon of veneer chipping, suitable for a variety of single and double veneer artificial board, fire prevention board sawing. Aluminum saw blade in order to prevent sticking is also used more trapezoidal flat teeth of the number of teeth more saw blades.

4. The inverted trapezoidal teeth are often used in the bottom slot saw blade of the cutting board saw, when sawing double veneer boards, the slot saw adjusts the thickness to complete the bottom of the slotting process, and then by the main saw to complete the sawing process of the board to prevent chipping phenomenon of the saw kerf.