The purpose of this regulation is to regulate the operation of mechanical carpentry in order to avoid personal injury accidents.
2. Scope of application
Suitable for production workshops or workplaces with mechanical woodworking positions.
3. Operating procedures
3.1 General safety rules for mechanical woodworking
3.1.1 Before starting the machine, check whether the safety devices of each department are complete and reliable. Otherwise, they cannot drive.
3.1.2 The storage and processing facilities of timber must be complete, reliable and easy to use. There must be no open flames or smoking in the workplace. Flammable materials and oil-and-cotton yarns should not be placed on or near the timber. Wood at each site should be stacked. Neatness must not affect the smooth flow of the road to ensure safety.
3.1.3 The machine tool should be kept clean. The safety device at the rotating part should be complete, reliable, and the grounding wire should be good. The screws and nut fasteners of all parts must not be loosened, and no debris should be placed on the tool table.
3.1.4 All kinds of tools and cutting tools must be inspected before use, and they must not be damaged or cracked.
3.1.5 After starting the exhaust fan, drive the vehicle. After the vehicle is started, the main shaft can be operated normally. It is forbidden to transfer wood, tools and workpieces, etc. from above the machinery part. The loading and unloading of parts and cutting tools must be stopped in a stand-by manner. If any abnormality is found in the machine tool, stop immediately.
3.1.6 After starting the machine, the body shall not be close to the rotating part. The operator shall stand in a safe position. It is forbidden to measure the size of the workpiece during operation. When cleaning sawdust, it must be stopped after the car has stopped.
3.1.7 When sawing, planer, etc. are processed for long materials, the opposite person should pick up the material, and the upper and lower hand should cooperate with each other. The hand should be more than 300 millimeters away from the cutting tool. The small workpieces should be carried out with push rods.
3.1.8 When processing large materials, when more than one person cooperates, one person must be designated to direct and coordinate the movements.
3.1.9 According to the thickness, hardness and turbidity of the wood, a reasonable cutting speed should be selected. Before processing wood, hard objects such as iron nails and iron wires should be removed from the wood.
3.1.10 After the work is completed, cut off the power and let it stop automatically. Do not use your hands or other objects to force the brakes. After stopping, clean the machine tool, tidy up the tools, and place the wood and workpiece.
3.2 Woodworker Safety Operation Procedures
3.2.1 After the wood is clamped, you must turn the chuck to correct it by hand, and check whether the tool bar, knife holder and top screw are firm, and then turn on the power test.
3.2.2 In order to ensure the safety when machining slender workpieces, the top of the tailstock must be used.
3.2.3 When the cutter is installed, the length of the tool holder protruding from the tool holder should be shorter than 5 cm. The length of the cutter bar must be 50 cm. When processing large wood (50 cm or more in diameter), the cutter must be fixed on the shank, the lathe must be clamped, and the cutting must not be excessive.
3.2.4 Small workpieces are frugal, no turning is allowed. When large workpieces are frugal, they are not allowed to open fast cars. There are other hard objects that need to be removed in time. Otherwise, no processing is allowed.
3.2.5 When turning wood with rough edges and corners, the turning tool should be fixed first, the corners of the car should be fixed, and the turning tool should be used for fine machining.
3.2.6 When turning the first knife, the feeding amount should be small. When sanding with sandpaper emery cloth, it must be right-handed, left-handed, and evenly applied to prevent overheating. It is not allowed to touch the workpiece by hand.
3.2.7 Wood glued with glue must be placed for 24 hours before it can be processed on a lathe.
3.2.8 The rotational speed of the lathe shall be determined according to the external dimensions and structure of the workpiece, and shall not be too high to prevent it from flying out.
3.3 Wood Circular Sawing Safety Operation Procedure
3.3.1 The disc shank shall be equipped with wedges and protective cover. The saw blade shall be fastened and perpendicular to the centerline of the shaft. There shall be no vibration during starting. Check whether the various parts are intact and effective before starting operation. First idle for 2 minutes and then work again.
3.3.2 Check the saw blade for elasticity, verticality and fixing pin. The saw blade with cracks, unevenness, non-smoothness and unsightly saw blade cannot be used.
3.3.3 No irregular (eg arc) workpieces shall be machined on the circular saw. The sawn work shall not be pulled back in the opposite direction.
3.3.4 Adjust the sawing machine must stop.
3.3.5 The amount of knife for the sawing machine should not be too long. After changing the blade diameter, the rotation speed must be adjusted to ensure safety.
3.3.6 When processing thin and small materials, use auxiliary tools and do not feed directly by hand.
3.3.7 After the machine tool is started, one must avoid the direction of rotation of the saw blade and the hand or body cannot approach the saw teeth.
3.3.8 The height of the table saw blade must exceed the thickness of the processing material by 1.5 cm. When pulling the material, the material should not be raised beyond the saw blade to prevent injury.
3.3.9 When the saw blade does not stop rotating, it is forbidden to adjust, and it is forbidden to brake by hand or other things.
Cold drawn steel bar is produced by Hot Rolled Steel Bar or wire rod to get smooth surface, more precision size, higher mechanical properties, which improves machining characteristics. It can also get various sections and sizes. So cold drawn steel bar is a better choice for machining users.
For high carbon steel or alloy steel bars, to avoid the cracks in inner or surface, the bars are usually required to be annealed before cold drawing.
To get different mechanical properties or hardness depending on final usage, the cold drawn bars will also be heat treated such as annealed, normalized or quenched and tempered(Q&T).
For CNC machines usage, to get much more precision sizes or much more better surface roughness for chrome plating, the cold drawn steel bars can also be centerless ground or polished.
We have more advantages on producing cold drawn steel bars:
1) Big stocks of hot rolled round bars or wire rods as raw materials
2) Wide range of cold drawn steel bar sizes: from 10mm to 150mm
3) Different cold drawing medias powder or oil to get different surface
4) Straightening machines to get better straightness up to 0.5mm/m
5) Grinding and polishing machines to get better roughness upto 0.4um
6) Heat treating furnaces to adjust the mechanical properties
7) Full sets of testing equipment to test the sizes, mechanical properties and microstructure.
8) Multiple packages to avoid broken packages and anti-rusty
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