Stone knowledge: one-time processing and preparation technology(Continued)

Stone knowledge: one-time processing and preparation technology

2. Stone rough board cutting equipment

Stone rough board cutting equipment includes see-saws, sand saws, circular saws, combined saws, two-way cutting machines, diamond bead cutting wire saws, multi-axis diamond bead wire saws, and single-blade saws. Different cutting equipment has different functions and functions.

2.1 Gang saw (see-saw)

The gang saw is a sawing equipment for marble slabs, which is especially suitable for the production of large blocks and large quantities of large slabs. The production efficiency is high, and the flatness and thickness deviation of the produced large slabs are small.

Gang saws are equipment for sawing marble blocks and artificial stone blocks. It is fundamentally different from a sand saw

2.1.1 Classification of gang saws

Divided by manufacturing principle: static pressure type gang saw and cross-type gang saw.

Divided by the number of installed saw blades: small gang saw, installed saw blades ≤ 10; medium gang saw, 10 ≤ installed saw blades ≤ 40; large gang saw, installed saw blades ≥ 40. The number of gang saw blades is usually 90, 110, 140, 160, 180.

Divided by the operating mode of the saw frame: the saw frame is fixed reciprocating horizontally and linearly runs the gang saw; the saw frame reciprocates horizontally and linearly runs and descends to run the gang saw.

Divided according to the operating mode of the block trolley: a fixed gang saw for the block trolley; a vertical lift gang saw for the block trolley.

2.1.2 The difference between gang saw and sand saw

The difference between see-saw and sand saw is reflected in the following aspects:

(1) The structure of the equipment is different

(2) The saw blade used for sawing blocks is different

(3) Sand saw with mortar tank

(4) The speed of sawing blocks is different

(5) Sand sawing uses mortar as an additive to help sand sawing

2.1.3 The structure of the gang saw

The structure of the gang saw: 1 flywheel 2 Dalian rod 3 main motor 4 frame, column 5 block trolley 6 main console car 7 water spray cooling system 8 foundation

2.2 Sand saw

Sand saw is the main equipment for cutting granite, because steel sand, lime, and appropriate mud are added for cutting in the process of sand saw cutting, so this equipment is called sand saw.

Sand saw is a device for sawing granite blocks, which is essentially different from gang saw. The sand saw must add steel grit when cutting granite stone, otherwise its cutting efficiency is extremely low, or even cut.

2.3 Single-chip circular saw

A circular saw with only one blade installed.

The circular saw is another important equipment for sawing large slabs and blanks besides the see-saw and sand saw. Because it can cut boards and blanks of any thickness when sawing blocks, and the equipment is cheap, the site area is small, and each thickness of the board does not need to be complicated to adjust the saw blade, so the use of circular saws very common. The circular saw is very suitable for the processing of small batches, multiple thicknesses and multiple varieties of plates.

Circular saws are mostly used for sawing slats, and are suitable for cutting blocks with a height of less than 950 mm. The efficiency of sawing in the processing of small batches of rough boards is greater than that of see-saws and sand saws. However, because the thickness of the blade of the circular saw is too thick, it wastes material for sawing the slats, so the use of circular saws to cut rough boards is less and less, and the circular saw combined hacksaw is replaced.

Divided into ￠2400, ￠2200, ￠2000, ￠1600, ￠1200 discs according to the diameter of the circular saw

saw.

According to the cutting depth of the circular saw, it is divided into large cutting machine, middle cutting machine and small cutting machine. The cutting depth of the big cutter is

750mm or more; the mid-cut depth is more than 600 mm; the small-cut depth is more than 300 mm.

According to the disc saw structure, it is divided into single-arm disc saw, bridge disc saw, beam disc saw, and frame disc saw.

According to the number and diameter of the installed saw blades, it can be divided into single-blade circular saw, multi-blade circular saw, and combined hacksaw.

According to whether the circular saw has a foundation, it can be divided into steel frame circular saw and basic circular saw.

According to the function of the circular saw, it is divided into the cutting circular saw, the shaping circular saw, the thin plate circular saw, and the two-way cutting circular saw.