The invention discloses a line marking device which comprises a fixed foot, a movable foot and a guide rod. The fixed foot is fixed to one end of the guide rod, and the movable foot is fixed to the guide rod in a sliding mode. According to the line marking device, the structure is simple, use is convenient, the working efficiency is improved, the problem that punching and line marking errors of acircular array are large is solved, and accurate bent lines can be marked on plates.

The invention discloses an adjustable fabrication device of a top cover of a cylindrical heat insulation water tank and relates to the field of heat insulation water tanks. The adjustable fabricationdevice comprises a cutting unit and a scribing unit. The cutting unit comprises a compaction base; a rotating shaft is rotationally connected to the upper end of the compaction base; connecting rods are fixed to the upper end of the rotating shaft; a first fixing seat is fixed to the other ends of the connecting rods; a first cutting rod is in threaded connection to the first fixing seat; a firstcutter head is disposed at the bottom end of the first cutting rod; a second fixing seat is fixedly disposed between the connecting rods; a second cutting rod is fixed to the lower end of the second fixing seat; a second cutter head is disposed at the bottom end of the second cutting rod; and a rod cap is disposed at the top end of the first cutting rod. The scribing unit comprises a clamping seat; clamping plates are disposed at the two ends of the clamping seat; a through hole is formed in the clamping seat; a scribing rod is fixed into the through hole; and a circular arc protrusion is disposed at the bottom end of the scribing rod. By means of the adjustable fabrication device, the problem that in the prior art, a cutting unit and a scribing unit need to be used separately in separatedsteps is solved, scribing and cutting are combined onto the same device, the scribing unit can be assembled onto the cutting unit, and adjustment of the scribing position is performed according to the using conditions.

Adjustable fabrication device of top cover of cylindrical heat insulation water tank

The invention discloses a cylindrical heat-insulation water tank top cover cutting device and relates to the field of heat insulation water tanks. The cylindrical heat-insulation water tank top covercutting device comprises a compacting base, a rotary shaft is rotatably connected to the upper end of the compacting base, two connecting rods are arranged at the upper end of the rotary shaft, and afirst fixing seat is fixed to the other ends of the connecting rods. An inner threaded hole is formed in the first fixing seat, a first cutting rod is in threaded connection with the inner threaded hole, and a first cutting tool bit is arranged at the bottom end of the first cutting rod. A rod cap is arranged at the top end of the first cutting rod, a scribing rod is further fixed to the lower endface of the first fixing seat, and two circular arc protrusions are arranged at the bottom end of the scribing rod. A second fixing seat is fixed between the two connecting rods, a second cutting rodis fixed to the lower end of the second fixing seat, and a second cutting tool bit is arranged at the bottom end of the second cutting rod. According to the cylindrical heat-insulation water tank topcover cutting device, the problem that in the prior art, a cutting device needs to be separately used in a stepped mode with a scribing device is solved, scribing and cutting are combined into one device, the labor hour is saved, buffering folds between a water tank top cover body and a roll rim are reserved, the influence of the roll rim in rolling up is lowered to the minimum, and rapid, effective and simple effects are achieved.

Cylindrical heat-insulation water tank bottom cover cutting device

The invention discloses a water tank top cover cutting device provided with a water inlet with variable diameters and relates to the field of thermal insulating water tanks. The water tank top cover cutting device comprises a compaction base, wherein a rotary shaft is rotatably connected with the upper end of the compaction base; two connecting rods are arranged at the upper end of the rotary shaft; a fixed seat I is fixed at the other end of each of the connecting rods and is in threaded connection with a cutting rod I; a cutting tool bit I is arranged at the bottom end of the cutting rod I;a rod cap is arranged at the top end of the cutting rod I; a marking rod is further fixed on the lower end face of the fixed seat I; a circular arc bulge is arranged at the bottom end of the marking rod; a connecting seat is arranged on the inner wall of each of the connecting rods and is detachably connected with a fixed seat II; a cutting rod II is fixed at the lower end of the fixing seat II; and a cutting tool bit II is arranged at the bottom end of the cutting rod II. The water tank top cover cutting device solves the problem that the cutting device and a marking device are separately used at different steps, combines marking and cutting on one device, saves the man hour, and reserves a buffer kink mark between a water tank top cover body and a roll rim to reduce the influence to theminimum when the roll rim is rolled up; and the diameter of the water inlet is variable, and the water tank top cover cutting device is fast, effective and simple.

Water tank top cover cutting device provided with water inlet with variable diameters

The invention provides a double-head scribing device and a double-head scribing system, and relates to the technical field of scribing machines. The double-head scribing device comprises a moving assembly, a first scribing assembly and a second scribing assembly, wherein the first scribing assembly and the second scribing assembly are arranged on the moving assembly, and the moving assembly is used for driving the first scribing assembly and the second scribing assembly to move. According to the double-end scribing device, the two scribing assemblies are adopted, so that the scribing efficiency is high.

Double-end scribing device and double-end scribing system

Line marking device

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Line marking device

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Adjustable fabrication device of top cover of cylindrical heat insulation water tank

Cylindrical heat-insulation water tank bottom cover cutting device

Water tank top cover cutting device provided with water inlet with variable diameters

Double-end scribing device and double-end scribing system