CN201089216Y

CN201089216Y - Sealing structure for bottle blowing machine

Info

Publication number: CN201089216Y
Application number: CNU2007201395507U
Authority: CN
Inventors: 李健宾
Original assignee: QUANBAN INDUSTRY Co Ltd
Current assignee: QUANBAN INDUSTRY Co Ltd; Chumpower Machinery Corp
Priority date: 2007-02-13
Filing date: 2007-02-13
Publication date: 2008-07-23
Anticipated expiration: 2017-02-13

Abstract

The utility model provides a sealing structure of a bottle blowing machine, wherein the receiving part of the air blowing nozzle of the bottle blowing machine arranged corresponding to the toothed part of a bottle parison is provided with a pressing piece inside; the pressing piece is designed as a hollow piece through which high-pressure gas passes; moreover, the surface of the pressing piece corresponding to the bottle parison is designed as a flat surface; therefore, when the air blowing nozzle moves, the flat surface can be pressed on the toothed part of a bottle parison to assist in aligning the position of the bottle parison; moreover, when the air blowing nozzle moves to the end point of the travel, the toothed part of the bottle parison can be pressed on the peripheral surface of a die by the pressing piece, thereby obtaining sealing effect.

Description

A kind of enclosuring structure of bottle blowing machine

[technical field]

The utility model relates to a kind of bottle blowing machine, particularly a kind of enclosuring structure of bottle blowing machine bottleneck.

[background technology]

The workflow of general bottle blowing machine mostly is that bottle base is carried through a heater, after making the body of bottle base partly be heated to the required temperature of blow molding, deliver to again in the mould that blow molding uses, make the body of bottle base partly be positioned at the die cavity of mould, the tooth portion of bottle base then is exposed at outside the mould, then pressure-air is penetrated bottle base inside by an inflatable body, make the body of bottle base partly be abutted in the die cavity inner face by inflation, form required shape, withdraw from inflatable body again, last die sinking can be obtained required plastic bottle.

See also Fig. 1, it is the sectional structure schematic diagram of the inflatable body of traditional bottle blowing machine, traditional bottle blowing machine has a mould 1 that is combined to form by two half modules, has a die cavity 11 in this mould 1, this die cavity 11 has an opening 12 for a ccontaining bottle base 2, and the bottle base 2 that this bottle blowing machine correspondence is placed in this opening 12 is provided with a movable blowing nozzle 3, in the course of work of this inflatable body, can be earlier by tooth portion 21 peripheries of blowing nozzle 3 cover caps at bottle base 2, and fit tightly end face at mould 1, form sealing state, stretch into the inner perfusion of the body (not shown) pressure-air of bottle base 2 again with a stretching bar 30, then just blow molding goes out required plastic bottle.

Reveal for fear of pressure-air, the structure of sealing usefulness must be set between blowing nozzle and mould, for example No. 6464486 patent of United States Patent (USP) and French Patent (FRP) are No. 2876942, No. 2871721, all be that part at the corresponding mould of blowing nozzle front end is provided with seal, blowing nozzle can be fitted tightly in the mould outer rim, wherein No. 6464486 patent of United States Patent (USP) is at the mould outer edge surface baffle plate to be set to supply the seal of blowing nozzle to push against, and guarantees to reach sealing state; No. 2871721 patent of French Patent (FRP) then is at the mould outer edge surface lip ring to be set to supply the seal of blowing nozzle to push against, to reach sealing state.

Aforesaid various structure all can make and reach required sealing state between blowing nozzle and the mould, but all seal need be set additionally, even other accessory must be set at the mould outer edge surface, so structure not only can increase the complexity of structure, also can cause simultaneously the manufacturing of machinery and the increase of use cost, therefore be necessary to be improved again.

In addition, stretching bar 30 must stretch into the inner perfusion of the body pressure-air of bottle base 2 in the process of blow molding, so bottle base is when being placed in the mould 1, in case run-off the straight, the body bar 30 that partly just might be stretched touches, pushes and forms substandard products.

Therefore for fear of the phenomenon of bottle base run-off the straight, just the precision of the opening part of mould and bottle base must be transported locating accuracy and all improve, just can make the phenomenon that bottle base can run-off the straight behind the mould matched moulds.Yet Ji Xie manufacturing and working service cost all can improve relatively thus, therefore still are necessary to be improved again.

[summary of the invention]

The purpose of this utility model is to provide a kind of energy to assist the correcting bottle base, and makes the airtight bottle blowing machine enclosuring structure of formation between bottle base and inflatable body.

A kind of enclosuring structure of bottle blowing machine, this bottle blowing machine has a mould that is combined to form by two half modules, has a die cavity in this mould, this die cavity is provided with an opening with a ccontaining bottle base, and the corresponding described bottle base that is placed in described opening of this bottle blowing machine is provided with a movable blowing nozzle, and the tooth portion of the corresponding described bottle base of this blowing nozzle is provided with a holding part, and this blowing nozzle inside has pipeline and is blown among the bottle base for gases at high pressure, described blowing nozzle is provided with a press part in this holding part, this press part is made as hollow to be passed through for gases at high pressure, and the end face of the corresponding described bottle base of described press part is a burnishing surface, this burnishing surface compels to be butted on the tooth portion of this bottle base during described blowing nozzle displacement, and described tooth portion is pushed against in described mould.

Wherein said press part in the form of a ring, and its middle part has the hole that can pass through for gases at high pressure, and the internal diameter in this hole system is less than the external diameter of this bottle base tooth portion.

Perhaps, described this press part in the form of a ring, and its middle part has the hole that can pass for a stretching bar, described stretching bar pours into gases at high pressure to bottle base.

The utility model is provided with a press part in the holding part of blowing nozzle, and press part is a burnishing surface to end face that should bottle base, adopt such structure, when the blowing nozzle displacement, can compel to be butted on the tooth portion of this bottle base by described burnishing surface, and the position of auxiliary this bottle base of correcting, avoid the phenomenon of bottle base run-off the straight, and when this blowing nozzle is moved to the stroke end, can the tooth portion of this bottle base be pushed against outer edge surface in this mould by this press part, thereby reach the effect of sealing, compare with structure in the past and have following advantage:

1, simple in structure, and required precision is low;

2, save cost, reduction in the numbers of seconds.

[description of drawings]

In conjunction with the embodiments the utility model is further described with reference to the accompanying drawings.

Fig. 1 is the sectional structure schematic diagram of the inflatable body of traditional bottle blowing machine.

Fig. 2 is a sectional structure schematic diagram of the present utility model.

Fig. 3 is that press part of the present utility model compresses the schematic diagram that bottle base tooth portion is sealing state.

Fig. 4 is the schematic diagram of the auxiliary correcting bottle base of press part of the present utility model.

Fig. 5 is the sectional structure schematic diagram of another embodiment of the utility model.

[specific embodiment]

Embodiment one:

See also Fig. 2, bottle blowing machine of the present utility model has a mould 1 that is combined to form by two half modules, has a die cavity 11 in this mould 1, die cavity 11 has an opening 12 for a ccontaining bottle base 2, and the corresponding described bottle base 2 of bottle blowing machine is provided with a movable blowing nozzle 3, and the tooth portion 21 of these blowing nozzle 3 corresponding described bottle bases 2 is provided with a holding part 31, and these blowing nozzle 3 inside have pipeline 32 and are blown among the bottle base 2 for gases at high pressure.

Described blowing nozzle 3 is provided with a press part 4 in this holding part 31, this press part 4 is made as hollow, and has a hole 41, and this hole 41 can be passed through for the gases at high pressure of pipeline 32, and the internal diameter in this hole 41 is less than the external diameter of these bottle base 2 tooth portions 21.And 4 pairs of this press parts should bottle base 2 end face 22 be a burnishing surface 42, when blowing nozzle 3 displacements, can compel to be butted on tooth portion 21 end faces 22 of this bottle base 2 by described burnishing surface 42, as shown in Figure 3, tooth portion 21 is pushed against in the outer edge surface of mould 1.

See also Fig. 4, because this reality has the burnishing surface 42 of novel press part 4 can be used for compressing tooth portion 21 end faces 22 of bottle base 2, therefore the situation that tilts has taken place when even bottle base 2 is placed in the opening 12 of mould 1, also can be in the process of blowing nozzle 3 displacements, be pressed against tooth portion 21 end faces 22 of bottle base 2 by the burnishing surface 42 of press part 4, and produce the effect of auxiliary correcting bottle base 2.Thus, the mould of the bottle blowing machine of this creation and the positioning accuracy of transporting bottle base can be relaxed in its error range, thereby can reduce the cost of the manufacturing of machinery.

And when this blowing nozzle 3 is moved to the stroke end, can compress tooth portion 21 end faces 22 of bottle base 2 by the burnishing surface 42 of press part 4, and the tooth portion 21 that makes bottle base 2 is pushed against the outer rim end face in this mould 1, as shown in Figure 3, thereby can make bottle base 2 and blowing nozzle 3 between reach sealing state.In other words, the utility model need not additionally to be provided with seal can reach sealing state, makes and use cost thereby effectively reduce.

In sum, the utility model is provided with a press part in the holding part of blowing nozzle, makes the burnishing surface of press part can be used for being pressed against the tooth portion end face of bottle base, and can have the effect of sealing and auxiliary correcting bottle base position simultaneously concurrently.

Embodiment two:

Certainly, structure of the present utility model can change slightly, as shown in Figure 5, it is the sectional structure schematic diagram of another embodiment of the present utility model, the hole 41 of wherein said press part 4 can be passed through for a stretching bar 5, and should can stretch in the bottle base 2 by stretching bar 5, so that pour into to bottle base 2 gases at high pressure interior with the bottle base blow molding.So also can reach the effect identical with previous embodiment one.

Claims

1. the enclosuring structure of a bottle blowing machine, this bottle blowing machine has a mould that is combined to form by two half modules, has a die cavity in this mould, this die cavity is provided with an opening with a ccontaining bottle base, and the corresponding described bottle base that is placed in described opening of this bottle blowing machine is provided with a movable blowing nozzle, and the tooth portion of the corresponding described bottle base of this blowing nozzle is provided with a holding part, and this blowing nozzle inside has pipeline and be blown among the bottle base for gases at high pressure, it is characterized in that:

Described blowing nozzle is provided with a press part in this holding part, this press part is made as hollow to be passed through for gases at high pressure, and the end face of the corresponding described bottle base of described press part is a burnishing surface, this burnishing surface compels to be butted on the tooth portion of this bottle base during described blowing nozzle displacement, and described tooth portion is pushed against in described mould.

2. the enclosuring structure of a kind of bottle blowing machine according to claim 1 is characterized in that: described press part in the form of a ring, and its middle part has the hole that can pass through for gases at high pressure, and the internal diameter in this hole system is less than the external diameter of this bottle base tooth portion.

3. the enclosuring structure of a kind of bottle blowing machine according to claim 1 is characterized in that: wherein this press part in the form of a ring, and its middle part has the hole that can pass for a stretching bar, described stretching bar pours into gases at high pressure to bottle base.