CN2319213Y - Pouring, pulling, blowing secondary shaping plastic bottle blank preheater - Google Patents
Pouring, pulling, blowing secondary shaping plastic bottle blank preheater Download PDFInfo
- Publication number
- CN2319213Y CN2319213Y CN 98211255 CN98211255U CN2319213Y CN 2319213 Y CN2319213 Y CN 2319213Y CN 98211255 CN98211255 CN 98211255 CN 98211255 U CN98211255 U CN 98211255U CN 2319213 Y CN2319213 Y CN 2319213Y
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- CN
- China
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- heat
- pipe
- preheating
- preheating chamber
- preheater
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- Expired - Fee Related
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- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a pouring, pulling, blowing secondary shaping plastic bottle blank preheater, which is characterized in that a preheating chamber is composed of a heat preserving barrel and a cover plate which is arranged on the top part of the heat preserving barrel. Thermal gas which is used as a heat-conducting medium is forced to flow in the preheating chamber. The cover plate which is arranged on the top part of the heat preserving barrel is provided with a tube blank placing hole, and a tube blank neck clamping sleeve which is used for suspending the tube blank in the preheating chamber is arranged in the tube blank placing hole. The utility model uses the thermal gas which is forced to flow as the heat conducting medium. The unique structure can be widely used for preheating the bottle blanks of various raw materials which comprise PET, PC and PE. The uniform temperature field which is big enough of the utility model can satisfy the preheating requirements of the bottle blanks of any capacity, and the preheating time is shortened.
Description
The utility model relates to the plastic bottle blank preheating device.More particularly, be a kind of plastic bottle blank preheating device of annotating in the stretch blow post forming mode that is applied in.
At present, generally use the preheating method in the plastic bottle blank preheating device to have two kinds, i.e. metal preheater and far infrared preheater.This wherein, the metal preheater generally is to adopt the nichrome resistance wire as thermal source, as heat-conducting medium, in thermal medium aluminium offers through hole simultaneously with aluminium, by to hollow aluminum pipe heating, heat reaches pipe by tube wall by the air in managing again.The defective that this preheating method mainly exists is:
1, preheating time long, pipe is heated inhomogeneous, has had a strong impact on the bottle blowing quality.Its reason is that not only the heat that thermal source sends is to be passed to pipe by multiple medium; With the place of thermal source different distance, the heat that obtains is different; Especially owing to almost static air in the metal tube has had a strong impact on heat conducting efficient and its pre-heat effect.
2, this preheating method only is applicable to the PET pipe.For with the pipe as raw material such as PC, PE, to compare with the PET pipe, the former expanded by heating is bigger frequently.Therefore, the metal pipe-wall bonding that is easy to after pipe is heated and conducts heat.If by increasing the metal tube diameter pipe can't be contacted with metal pipe-wall, not only preheating time need be very long, and the effect of preheating also can't reach the needs of production.
3, as the nichrome resistance wire of thermal source, because reasons such as oxidations, service life is short.And the heater element resistance wire generally all is to be embedded in the aluminium sheet as thermal medium with thermosetting plastics, and in actual the use, maintenance is difficulty very.
Far infrared preheater of the prior art generally is to make pipe along a circumference revolution time, accepts far infrared radiation by a semi-enclosed space.For pipe is heated evenly, the far infrared preheater of various different structures has all adopted a common structure, and promptly pipe is removed in warm outside the revolution, also ceaselessly rotation.The preheater that has even make pipe in revolution is also done axial upper and lower moving in the time of rotation.Obviously, this structural design is extremely complicated.Yet, still do not have to solve effectively the problem of " thermally equivalent " like this.Reason is that their temperature fields own are uneven, in this uneven temperature field, has both made pipe in motion regularly, and its result also is " well-regulated inhomogeneous ".
No matter above-mentioned which kind of preheating method has enough big capacity bottle bases of homogeneous temperature field on a large scale for requiring, its pre-heat effect can not satisfy the requirement of bottle blowing especially.At present, also never have a kind of various raw materials that can be widely used in comprising PET, PC and PE, big capacity, can satisfy the bottle base preheating device that bottle blowing requires.
The purpose of this utility model is to avoid above-mentioned weak point of the prior art, a kind of preheating device for injection, drawing and blowing secondary forming of plastic bottle parison is provided, its version can be widely used in various raw materials such as PET, PC and PE, and its enough large-scale even temperature field energy satisfies the bottle base preheating requirement of any capacity.
The purpose of this utility model is achieved through the following technical solutions.
Design feature of the present utility model is to constitute preheating chamber by heat-preserving container and bucket top blind flange, forced flow has the hot gas as heat-conducting medium in the described preheating chamber, on described bucket top blind flange, evenly offer the pipe putting hole, be provided with in order to pipe is suspended on the pipe neck chuck in the preheating chamber in the pipe putting hole.
The utility model is that hot gas with forced flow is as heat-conducting medium, its particular structure setting can be widely used in comprising the preheating of the plurality of raw materials bottle base of PET, PC and PE, it is large-scale even temperature field enough, can satisfy the bottle base preheating requirement of any capacity.The utility model has not only been realized foregoing purpose well, and compared with the prior art, the utility model preheating speed is fast, only need 1/5th of common preheater preheating time, it is simple in structure, easy to operate, reliable in function, be easy to safeguard, with low cost.
Fig. 1 is the utility model internal structure schematic diagram.
Fig. 2 is the utility model plan structure schematic diagram.
By the following examples, in conjunction with the accompanying drawings the utility model is further described.
Embodiment:
Referring to accompanying drawing 1,2, constitute preheating chamber by heat-preserving container 6 and bucket top blind flange 2, forced flow has the hot gas as heat-conducting medium in the preheating chamber, evenly offers pipe putting hole 9 on bucket top blind flange 2, is provided with in order to pipe 1 is suspended on the pipe neck chuck 10 in the preheating chamber in the hole 9.Have the pipe neck chuck 10 of different clamping internal diameters by replacing, can be applied to the bottle base preheating of different size mutually.
As shown in the figure, preheating chamber is a closed cavity, along heat-preserving container 6 madial walls heat-generating pipe 3 is set, rotation fan blade 7 is set in heat-preserving container 6 bottoms, driving fan blade 7 by motor 8 rotates, force the hot gas that has been heated by heat-generating pipe 3 in preheating chamber, to circulate, thereby in preheating chamber, form the even temperature field.
Heating wire or the electrothermal tube of heat-generating pipe 3 its heater elements in the present embodiment for evenly arranging.
In order to realize the automatic control of different temperatures setting value, in preheating chamber, be provided with temperature-sensing probe 5, the temperature controller 4 that is output as detection signal with this temperature-sensing probe 5 is set simultaneously.Select 0-300 ℃ temperature controlling range, can satisfy the pre-heat demand of all different bottle bases basically.
In warm, need not to rotate or move the pipe that is suspended in the pipe neck chuck, when arrive in the preheating time of setting, take out pipe, send into bottle blowing machine and finish blowing.
Claims (3)
1, a kind of injection, drawing and blowing secondary forming of plastic bottle parison preheater, it is characterized in that constituting preheating chamber by heat-preserving container (6) and bucket top blind flange (2), forced flow has the hot gas as heat-conducting medium in the described preheating chamber, on described bucket top blind flange (2), evenly offer pipe putting hole (9), be provided with in order to pipe (1) is suspended on the pipe neck chuck (10) in the preheating chamber in the pipe putting hole (9).
2, injection, drawing and blowing secondary forming of plastic bottle parison preheater according to claim 1 is characterized in that described preheating chamber is a closed cavity, along heat-preserving container (6) madial wall heat-generating pipe (3) is set, and is provided with in heat-preserving container (6) bottom and rotates fan blade (7).
3, injection, drawing and blowing secondary forming of plastic bottle parison preheater according to claim 1 is characterized in that heating wire or the electrothermal tube of its heater element of described heat-generating pipe (3) for evenly arranging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98211255 CN2319213Y (en) | 1998-01-21 | 1998-01-21 | Pouring, pulling, blowing secondary shaping plastic bottle blank preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98211255 CN2319213Y (en) | 1998-01-21 | 1998-01-21 | Pouring, pulling, blowing secondary shaping plastic bottle blank preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2319213Y true CN2319213Y (en) | 1999-05-19 |
Family
ID=33965986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98211255 Expired - Fee Related CN2319213Y (en) | 1998-01-21 | 1998-01-21 | Pouring, pulling, blowing secondary shaping plastic bottle blank preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2319213Y (en) |
-
1998
- 1998-01-21 CN CN 98211255 patent/CN2319213Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |