Bottle blowing device on the bottle blowing machine
Technical field
The utility model relates to the bottle blowing device on the bottle blowing machine.
Background technology
At present, the structure of the bottle blowing device that uses on bottle blowing machine is all fairly simple, mainly comprises an air nozzle, and air nozzle is connected with the piston rod that drives cylinder; During work, high-pressure pipe is connected with air nozzle, starts the driving cylinder, air nozzle is risen and contact with the bottle blank seat sealing, open the air inlet magnetic valve on the air inlet pipe then, gases at high pressure are blown in the bottle embryo by air nozzle, when blowing, the draft cylinder of configuration drives the stretching bar and passes air nozzle in addition, and the stretching bar is stretched in bottle embryo, the bottle embryo is stretched, like this, the bottle embryo is carried out air blowing limit, limit stretch, up to full shaping of the final drink of bottle.After bottle is shaped, close the air inlet magnetic valve on the air inlet pipe, open the bypass solenoid valve on the air inlet pipe, get rid of the residual air in the bottle, oppositely start then and drive cylinder, air nozzle is descended and be separated with bottle blank seat, finish the bottle blowing process one time.The shortcoming of above-mentioned bottle blowing device is: because one road gases at high pressure directly are blown in bottle embryo, air-flow is too concentrated, and it is inhomogeneous to blow when making bottle blowing, and the saturation degree instability of bottle does not reach desirable bottle blowing effect; In addition,, make and whole exhaust process complexity reduced production efficiency, can't adapt to the demand for development of high speed, high yield owing to lack independently exhaust passage.
Summary of the invention
At the problems referred to above, uniform and stable, the shaping final vacuum of the air-flow bottle blowing device on the bottle blowing machine rapidly when the utility model will provide a kind of bottle blowing.
For achieving the above object, the technical solution adopted in the utility model is: the bottle blowing device on the described bottle blowing machine mainly comprises: mount pad, be provided with the axis of the piston in the mount pad, lower flange and mount pad and the axis of the piston are fixed together, lower flange with fairlead and sealing ring gland in the inner chamber of the axis of the piston; On mount pad, be respectively arranged with the air admission hole and the venthole that communicate with the inner chamber of the axis of the piston; On the axis of the piston, also be provided with boss, cylinder body and cylinder cap all are sleeved on the axis of the piston, cylinder body is fixedlyed connected with cylinder cap, the upper and lower side of cylinder cap and cylinder body and boss forms upper and lower annular seal space respectively, cylinder body is provided with the following passage that communicates with the lower seal chamber, cylinder cap is provided with the upper vent hole that communicates with last annular seal space, also is provided with seal washer at the cylinder cap top; Also be provided with internal lining pipe in the inner chamber of the axis of the piston, internal lining pipe is provided with the branch air drain and divides pore.
A kind of concrete structure of above-mentioned internal lining pipe is: the end at internal lining pipe is provided with protruding eaves, and the sidewall of internal lining pipe is provided with the branch pore, also is respectively arranged with the branch air drain on internal lining pipe and protruding eaves.
The set-up mode of the seal washer at described cylinder cap top is: pressing plate is fixedly mounted on seal washer at the top of cylinder cap.
The utility model has the advantages that: use described bottle blowing device on bottle blowing machine, air-flow is even, stable, abundant during bottle blowing, can improve the saturation degree that bottle is shaped; And, owing to be provided with independently exhaust passage, make exhaust simply rapid, shortened the production cycle, improved operating efficiency.
Description of drawings
Fig. 1 is the structural representation of a preferred embodiment of bottle blowing device described in the utility model;
Fig. 2 is the structure for amplifying schematic diagram of the internal lining pipe shown in Fig. 1;
Fig. 3 is the right view of Fig. 2;
Fig. 4 is the left view of Fig. 2;
Fig. 5 is the A-A profile among Fig. 2.
The specific embodiment
Below in conjunction with the drawings and specific embodiments technical scheme described in the utility model and operation principle thereof and advantage are further described.
As shown in Figure 1, bottle blowing device on the bottle blowing machine described in the utility model mainly comprises: mount pad 3 is provided with the axis of the piston 5 in the mount pad 3, lower flange 1 is fixed together with mount pad 3 and the axis of the piston 5, lower flange 1 with fairlead 20 and sealing ring 2 glands in the inner chamber of the axis of the piston 5; On mount pad 3, be respectively arranged with the air admission hole 4 and the venthole 19 that communicate with the inner chamber of the axis of the piston 5; On the axis of the piston 5, also be provided with boss 8, cylinder body 17 all is sleeved on the axis of the piston 5 with cylinder cap 15, cylinder body 17 is fixedlyed connected with cylinder cap 15, cylinder cap 15 and cylinder body 17 form upper and lower annular seal space 9 and 7 respectively with the upper and lower side of boss 8, cylinder body 17 is provided with the following passage 6 that communicates with lower seal chamber 7, cylinder cap 15 is provided with the upper vent hole 10 that communicates with last annular seal space 9, also be provided with in the seal washer 13-present embodiment at cylinder cap 15 tops, pressing plate 14 with seal washer 13 stationary pinch in the shoulder hole at cylinder cap 15 tops; In the inner chamber of the axis of the piston 5, also be provided with internal lining pipe 18, in the present embodiment, the structure of internal lining pipe 18 such as Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, end at internal lining pipe 18 is provided with protruding eaves 24, on the sidewall of internal lining pipe 18, evenly be provided with three branch pores 16, also be respectively arranged with three branch air drains 181 and 241 outside the sidewall of internal lining pipe 18 and on the protruding eaves 24.
The operation principle of the blowning installation of said structure is: during use, mount pad 3 is fixedly mounted on the frame 21.At first, make air inlet in the upper vent hole 10, give vent to anger in the passage 6 down, the effect of the volume expansion of being bullied, cylinder body 17 and cylinder cap 15 be up motion together, up to seal washer 13 and bottle blank seat 11 on the bottle blowing machine seal contact till; Then, in air admission hole 4, feed one road low-pressure gas earlier, gas by the axis of the piston 5 inner chamber and the branch pore 16 on the internal lining pipe 18 and divide in the bottle embryo 12 of air drain 181 and 241 on being enclosed within bottle blank seat 11 and blow, meanwhile, draft cylinder 23 in the bottle blowing machine drives the inner chamber that stretching bar 22 is upward through the axis of the piston 5 and internal lining pipe 18, extend in bottle embryo 12, bottle embryo 12 is carried out the forming process that air blowing limit, limit stretches; When bottle is shaped substantially, turn off the low-pressure gas that feeds in the air admission hole 4, and in air admission hole 4, feed gases at high pressure, like this, can make the bottle of final shaping more saturated.After bottle is shaped fully, close the inlet channel of air admission hole 4, open the outlet passageway of venthole 19, the gas in the bottle is discharged rapidly along exhaust passage independently.At last, make in the upper vent hole 10 and give vent to anger, descend air inlet in the passage 6, the effect of the volume expansion of being bullied, cylinder body 17 and cylinder cap 15 move downward together, till the bottle blank seat on seal washer 13 and the bottle blowing machine 11 breaks away from, wait for bottle blowing work next time.
From the above mentioned as can be known, owing to be provided with the branch pore and divide air drain on internal lining pipe 18, the air blowing air-flow when making bottle blowing is more stable, and it is also more even abundant to blow, and can improve the forming effect of bottle.And, owing to be provided with independently exhaust passage, can shorten the production cycle, increase work efficiency.