CN2132744Y

CN2132744Y - Cutting head first cutting device for glass tube

Info

Publication number: CN2132744Y
Application number: CN 92215937
Authority: CN
Inventors: 潘家馀; 姚天朗; 周学民; 艾国忠
Original assignee: Nantong No1 Glass Factory; Longhua Shanghai Machinery Works
Current assignee: Nantong No1 Glass Factory; Longhua Shanghai Machinery Works
Priority date: 1992-08-03
Filing date: 1992-08-03
Publication date: 1993-05-12
Anticipated expiration: 2002-08-03

Abstract

The utility model relates to a cutting head of a primary cutting device for glass tubes in a glass tube pulling traction machine, characterized in that a cutting arm fixedly connected to a transmission output shaft is symmetrically provided with cutting knives. Either cutting knife is fixedly arranged in an angle demodulator on one end of a movable knife back which is hinged on the cutting arm and constrained by an elastic adjustor. The utility model has the advantages that the cutting head can raise the pulling speed of glass tube pulling, namely increase the productivity, adjust the upper and lower elastic properties as well as the mounting angle of the cutting knife, and raise the quality of glass tube pulling and cutting.

Description

Cutting head first cutting device for glass tube

The utility model relates to glass ware forming equipment, is the cutting head of a kind of device in the first cutting apparatus of glass tubing drawing machine.

The first cutting apparatus of glass tubing tractor is the thermal ampoule cutting that is used for the glass tubing production technique, and it is disconnected that the hot Glass tubing that it comes out continuous towing pursues undercut by cutting head by the certain-length requirement.The structure of this device and the difference of cutting mode all directly have influence on the glass-tube quality of cutting, as the degree that is uneven, the glass-tube error in length of fracture, and to the versatility of cutting various quality glass-tubes etc.

The applicant once also had been awarded Patent right one " the first cutting apparatus of glass tubing tractor " utility model patent in April, 1991 to Patent Office of the People's Republic of China's application, and the patent No. is 91215311.3.A kind of cutting apparatus just of this patent disclosure, wherein cutting head constitutes cutters by being fixedly connected on the cutting arm that cuts the tilting output shaft axle head of transmission case and installing one on it, and a water-cooled tube also is housed near the cutters.Cutting arm at the plane internal rotation that favours aspect horizontal, is lower-most point with the output shaft that tilts when promptly cutters are threaded to the Glass tubing position, and the cut direction of cutters is really good axial perpendicular to thermal ampoule.Said hilted broadsword cutting head like this, the general cutting that only is applicable to when low speed traction Glass tubing, if will adapt to cutting when drawing at a high speed, must quicken the rotating speed of cutting head, but the surging force when this has just increased cutting, fragile Glass tubing, in addition, cutters are fixedly installed on cutting arm arm end in this patent, lack regulating power, so when cutting the Glass tubing of different size or unlike material, the surging force in the time of can increasing cutting owing to the height control of cutters is improper, or relative slippage takes place in cutters on the glass-tube axis, influences glass-tube burr quality.

The purpose of this utility model makes it to be adapted to low speed, high speed traction working condition for a kind of improved cutting head is provided, and cutters are designed to have regulatory function, to reduce cutter head to the cutting surging force of Glass tubing or avoid producing sliding phenomenon.

The technical scheme that realizes the utility model above-mentioned purpose is, with cutting arm that tilting transmission output shaft is connected mutually on cutters are housed symmetrically, each cutters is packed in the angle demodulator of movable knife bar one end, movable knife bar be hinged again on the cutting arm and the elasticity adjusting device that is arranged on the cutting arm retrain.

Said cutting head like this, when rotating a week, cutting arm can cut two glass-tubes, the pulling speed that is equivalent to the glass-tube tractor can double, and, elasticity adjusting device can be regulated the strength of constraint activity knife bar, when loosening the restraint force to knife bar when regulating elasticity adjusting device, knife bar can be in certain elastic range rotates and cutter head is lifted slightly around articulated axle, can reduce the surging force of cutting when then cutting the major diameter glass-tube or running into hard glass.Because of the cutters in the utility model are installed in the angle demodulator, then utilize angle demodulator can regulate the setting angle of cutters according to the linear velocity of glass-tube pulling speed and cutters, Shi Buhui produces relative slippage so cutter head and glass-tube contact, thereby has improved the burr quality of the glass-tube of ingressing.

Below in conjunction with the accompanying drawing illustrated embodiment the utility model is further described.

Description of drawings:

Fig. 1 is a sectional view of the present utility model.

See by Fig. 1, on the cutting arm 1 that is fixedly connected on tilting output shaft 6 axle heads of cutting transmission case, be hinged with a pair of movable knife bar 3 symmetrically, the rod end of each movable knife bar 3 is provided with angle demodulator 5, fix cutters 4 in the angle demodulator 5, the angle of rotational angle setter can be regulated the angle position of the edge of a knife of cutters 4 with respect to glass-tube 8 axis.By seeing among the figure, be provided with a elasticity adjusting device 2 by the spring tension in each movable knife bar 3 bar subordinate side, when screwing nut during releasing spring, knife bar 3 can rotate slightly around articulated axle, be that movable knife bar 3 has certain elasticity, if cutter head run into glass-tube mechanically resistant material or glass-tube diameter when big slightly cutter head can slightly up lift.

Claims

1, a kind of cutting head that is fixedly connected on the first cutting apparatus of Glass tubing of the tilting output axle head of cutting transmission case, constitute by cutting arm and the cutters that install on it, a water-cooled tube also is housed near the cutters, it is characterized in that being equipped with symmetrically on the cutting arm 1 cutters 4, each cutters 4 is packed in the angle demodulator 5 of movable knife bar 3 one ends, and movable knife bar 3 is hinged again on cutting arm 1 and the elasticity adjusting device 2 that is arranged on the cutting arm retrains.