CN2371023Y

CN2371023Y - Crystallizing device for screw area of polyester container bottle open

Info

Publication number: CN2371023Y
Application number: CN 99208028
Authority: CN
Inventors: 秦光泽
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-04-19
Filing date: 1999-04-19
Publication date: 2000-03-29
Anticipated expiration: 2009-04-19

Abstract

The utility model relates to a crystallizing device for the screw area of a polyester container bottle opening, which is characterized in that the inner edge of the tooth opening part of a bottle blank is fixedly embedded on a fixed leg, a radiant heat source is arranged outside the tooth opening part, a heat conductor is arranged on the fixed leg, a position corresponding to the heat conductor is provided with a second radiant heat source, and the heat energy of the radiant heat sources is conducted to the fixed leg by the heat conductor and led to the smooth surface of the inner edge of the bottle opening of the bottle blank evenly. The utility model can eliminate cold spots, prevent the generation of heat distortion and strip the blank easily.

Description

A kind of polyester container bottleneck thread district crystallization apparatus

The utility model relates to a kind for the treatment of apparatus of hackamore knot crystallization, in particular for the treatment facility of polyester container bottleneck thread district crystallization.

Traditional polyester container bottleneck spiro tooth part is amorphous state (AMORPHOUS) polymer, therefore easy deformation under the impact of bearing high temperature or high pressure, filling temperature for liquid when hot packing job all has its restriction, if then liquid and air are subjected to the pollution of bacterium easily during with low temperature process, be directed to this and impose the crystallization processing at mouth cylindrical part, with the characteristic of raising heat resisting and pressure resisting, and be the application of present hot filling product.

It is to use heat to induce the crystallization of polyester deposits yields that crystallization is handled, by improving physical characteristic and the mechanical property of degree of crystallinity to improve polymer, yet, in crystallisation procedure does, must avoid the generation of thermal deformation, bottleneck size remains in certain specification after can crystallization control, therefore, the method for crystallization, technology are the keys that influences quality of finished.

Existing crystallization plant equipment has day three families such as essence of French SIDEL company and U.S. ELECTRICA FORM and Japan openly to produce the machinery of bottleneck crystallization, and its common ground is single external heat, and the control structure of size can be divided into plug-in and do not have the plug-in crystallization.

The structure that plug-in (INSERT) crystallization apparatus is arranged has the stability of higher dimensional, but plug (EJECTING) in being difficult for breaking away from as take off plug when high temperature is unhardened, takes out crystallization bottle embryo, because condensate at high temperature almost is viscoelastic body and very easily is out of shape;

The structure of no plug-in crystallization apparatus, because of there not being interior plug, size is wayward after the crystallization, neither desirable skillful technology.

Aforesaid technology as shown in Figure 1, primary structure is that age of a draught animal portion's 10 inner edges of bottle embryo are mounted on the crystallization apparatus mechanical fixed post 11, outside age of a draught animal portion 10, be provided with a width of cloth and penetrate thermal source 12, this moment is because age of a draught animal portion's 10 thickness t 1, t2, t3 is neither together, and being subjected to tooth form to influence the formation reception width of cloth penetrates the dead angle of thermal source and produces many cold spots 14, as Fig. 2, cause in the crystallization process condensate to produce irregular volume contraction or expansion because of relative density is different, bottleneck is induced down in thermal stress to deform, in addition as can be known from crystallization curve C and temperature curve to, in the crystallization process of best crystalline temperature A4 and crystal region A3, as Fig. 3, the generation of its cold spot 14 and have thermal stress to make bottleneck distortion.

Principle thus, when constituting complete crystallization, promptly can produce a deflection W, as Fig. 4, for the shortcoming that solves this deflection W has or not interior plug technology, yet, the plug crystallization is not because of the setting of no fixed leg 11 in having, can't the standard bottleneck radial dimension after crystallization is shunk, have the shortcoming that quality of finished is wayward, scale error is big, still be not a good design.

The purpose of this utility model is that a kind of polyester container bottleneck thread district crystallization apparatus will be provided, and it can eliminate cold spot, prevents to produce heat distortion amount, and takes off embryo easily.

The purpose of this utility model is achieved in that a kind of polyester container bottleneck thread district crystallization apparatus, age of a draught animal portion's inner edge of bottle embryo is mounted on the fixed leg, be provided with a radiant heat source outside the age of a draught animal portion, fixed leg is provided with a heat conductor, be provided with second radiant heat source in the heat conductor corresponding position, the heat energy of radiant heat source is transmitted to fixed leg by heat conductor, evenly imports on the even surface of bottle embryo bottleneck inner edge.

Fixed leg is a lasting maintenance uniform temperature, slows down the heat carrier of its contraction by bottle embryo inboard.

The utility model is owing to be provided with second stem that conducts heat, thermal source is imported on the even surface of bottle embryo bottleneck inner edge by fixed leg, make hot average mark be dispersed in bottleneck and eliminate cold spot, and then make bottle embryo by the control of different heat sources allow present inside and outside the bottleneck outer hard in soft state, after being bottleneck outside crystallization, the inboard radial pressure that still keeps uniform temperature to slow down inboard contraction that crystallization produces, reach and take off embryo and indeformable effect easily, because heat can be conducted equably for even surface in the inboard, not only can eliminate the thermal stress that cold spot produces, possess the radially thermal stress that has anti-shrinkage to produce simultaneously.

Describe concrete structure of the present utility model and operation principle in detail below in conjunction with accompanying drawing.

Fig. 1 is the schematic diagram of existing plug-in structure;

Fig. 2 is a bottle embryo bottleneck generalized section;

Fig. 3 is a bottleneck crystallization curve synoptic diagram;

Fig. 4 is a bottleneck deflection schematic diagram;

Fig. 5 is the utility model preferred embodiment crystallization schematic diagram;

Fig. 6 is the utility model preferred embodiment crystallization curve synoptic diagram;

Fig. 7 is the structural representation of the utility model preferred embodiment;

Fig. 8 is the utility model preferred embodiment crystallization apparatus schematic diagram.

The improvement of container finish thread described in the utility model district crystallization equipment, mainly be that the bottleneck inner edge also has heating function, promptly impose a uniform thermal source in bottle embryo bottleneck inboard, the body that makes container is in forming process, the bottleneck spiro tooth part can not produce cold spot, thereby eliminate the shortcoming of thermal deformation, make the bottleneck of bottle embryo form the outer hard interior soft embryo that takes off easily simultaneously.

As Fig. 5, shown in 6, the utility model mainly is provided with second thermal source, make age of a draught animal portion 10 in crystallization process, form a curing area A1 and softened zone A2, softened zone A2 needs long period such as curve T just can solidify gradually, and the formation of softened zone A2 is at fixed leg 20 1 ends one heat conductor 21 to be arranged, as Fig. 7, shown in 8, this heat conductor 21 is by radiant heat source 22 irradiations of second heating, make the inboard softened zone A2 of formation of bottleneck of 20 pairs of bottle embryos 13 of fixed leg, and this thermal source outwards conducts heat by the level and smooth inner edge of bottleneck, can eliminate the cold spot 14 that 12 pairs of bottlenecks of first radiant heat source produce, and then prevent the generation of irregular thermal strain, reach the purpose that improves quality, help the disengaging and the anti-anti-avulsion embryo distortion of bottle embryo 13 and fixed leg;

The disengaging of bottle embryo 13, behind the bottleneck complete crystallization, first width of cloth is penetrated thermal source 12 and is no longer shone, make the bottleneck outside solidify cooling and crystallization, and second width of cloth is penetrated thermal source 22 and is made fixed leg 20 still keep certain temperature by heat conductor 21, bottleneck shrinks the radial pressure that fixed leg 20 is produced after the crystallization to slow down, and then the radial shear power when eliminating bottle embryo 13 and breaking away from.

Claims

1. polyester container bottleneck thread district crystallization apparatus, age of a draught animal portion's inner edge of bottle embryo is mounted on the fixed leg, be provided with a radiant heat source outside the age of a draught animal portion, it is characterized in that: fixed leg is provided with a heat conductor, be provided with second radiant heat source in the heat conductor corresponding position, the heat energy of radiant heat source is transmitted to fixed leg by heat conductor, evenly imports on the even surface of bottle embryo bottleneck inner edge.

2. a kind of polyester container bottleneck thread as claimed in claim 1 district crystallization apparatus is characterized in that: fixed leg is a lasting maintenance uniform temperature, slows down the heat carrier of its contraction by bottle embryo inboard.