CN202517701U - Heating head of bottle blowing machine - Google Patents

Abstract

The utility model discloses a heating head of a bottle blowing machine. The heating head of the bottle blowing machine comprises a material returning ring, a spring and a preform insertion head component, wherein the material returning ring is connected with the lower part of a bushing, the spring is propped against the lower part of a spindle and the lower end of the bushing and can reset a spindle, and the preform insertion head component is connected with the lower end of the spindle. The preform insertion head component comprises a connector fixed on the spindle, an O-shaped rubber ring capable of generating tension, a preform insertion head and a plurality of expanding blocks; the preform insertion head and the expanding blocks are made of modified plastic materials; an embedded groove is formed in the lower end of the connector in a concave way; the preform insertion head is coated at the lower end of the connector from bottom to top and is provided with a plurality of gaps distributed uniformly in the circumferential direction corresponding to the embedded groove; the O-shaped rubber ring is arranged inside the embedded groove; the expanding blocks are uniformly buckled in the embedded groove of the connector in the circumferential direction; and the inner side of each expanding block is propped against the upper external side of the O-shaped rubber ring and is exposed outside the preform insertion head. The heating head of the bottle blowing machine can ensure that the opening of the blown bottle is not deformed and damaged and has a stable size, has a good tightness property during rotating a cover and fulfills an air-tight and bacteria-free aim.

Description

The head of heating of bottle blowing machine

Technical field

The utility model relates to bottle blowing apparatus field technology, refers in particular to a kind of head of heating of bottle blowing machine.

Background technology

Each sub-assembly that reaches the head of heating of the chain of heating on the rotary fully-automatic bottle-blowing machine, the chain of heating among the colleague at present both at home and abroad all is to adopt metal material, and processing combines.Through part relevant in the assembly, connector, material returned ring, ringfeder piece, slotting embryo head, O shape rubber ring, hexagon socket cap head screw combination and corresponding transmission mechanism; Accomplish the whole transmission process of heating of inserting embryo, heating, unload embryo.And design concept will be inserted embryo spare and is divided into and insert two of embryo head, ringfeder pieces, and the former rises and inserts the embryo guide effect, and the latter works the embryo tensioner effect of inserting, and insert behind the embryo rotation and rock for a short time, steady, and this structure more is tending towards rationally, functional by force.

The principle of bottle blowing is to cause the mechanisms such as bottle indusium machinery tong of being heated after heating to be sent in the main frame die cavity, imports the pure air of required pressure through blow gun, blows out required doleiform body and specification by the control of bottle mould; Press from both sides out to sending a bottle mechanism, until converging into integrated bucket at last, to accomplish required whole bottle blowing process by mechanical tong then.

The forming process of bottle embryo is to unfold under the effect of air pressure through bottle idiosome after the process of heating, and the bottle mould control that is designed, made by institute is blow molded into required form, specification.In this process, bottle preform mouth still will keep original form, size and precision everywhere, cause bottle embryo blow molding after, more smooth and easy during the bottleneck spiral cover, accurate, sealing and realize the purpose of sealed, sterile.

The head of heating that traditional metal material is processed receives the restriction of material property to cause the bottle blowing effect bad:

On the one hand, because of PET bottle embryo material hardness is low, soft, and the slotting embryo head that engages with bottle preform mouth in the head of heating that metal material is processed, ringfeder piece are hard, poor toughness, insert in the bottle preform mouth process at certain speed, often cause in the bottle preform mouth wall friction to pull.On the other hand; The bottle embryo is in the process of heating, and the head of heating is kept away the influence that unavoidably also receives heat in the process of heating, and causes self-temperature to raise; Its thermal conductivity of metal material is good; And at slotting embryo, unload heat transferred bottle preform mouth in the embryo process, especially the thin water bottle class of bottle preform mouth wall is transmitted deliquescing because of heat more easily; Cause the bottle preform mouth distortion.Moreover because embryo head, ringfeder piece insertion bottle preform mouth are inserted in deliquescing, both relative sliding frictions cause the bottle preform mouth inwall to pull, burn.

Take place in order to avoid, reduce above-mentioned condition as far as possible, each component design required precision is quite high in the head, manufacture difficulty is bigger and need metal to heat, and this type of number of parts of rotary fully-automatic bottle-blowing machine is quite a lot of again, and manufacturing cost is quite high undoubtedly.How to improve the bottle blowing quality, thoroughly solve bottle blowing and heat that a bottle idioplasm amount problem is one the key link of bottle blowing technology in the process.

The utility model content

In view of this; The utility model is to the disappearance of prior art existence; Its main purpose provides a kind of head of heating of bottle blowing machine, can guarantee that the bottle bottleneck that blows out is indeformable, do not insert the good airproof performance of more smooth and easy, accurate when hindering bottleneck, dimensionally stable, bottleneck spiral cover, bottleneck and bottle cap, thus raising product fine rate; Reduce cost, and realize the purpose of sealed, sterile.

For realizing above-mentioned purpose, the utility model adopts following technical scheme:

A kind of head of heating of bottle blowing machine; Comprise one be used to be connected the axle sleeve bottom material returned ring, be butted between mandrel bottom and the axle sleeve lower end and the spring and that mandrel is resetted is used to be connected the slotting embryo head assembly of mandrel lower end; Said slotting embryo head assembly comprises that one is used for fixing slotting embryo head and several pieces ringfeder pieces that the connector, on mandrel can produce the O shape rubber ring of tension force and utilize the modified plastic rubber material to process; To these several pieces ringfeder pieces; Lower end in connector is concaved with embedding slot; Said slotting embryo head be coated on from bottom to top connector the lower end, and corresponding embedding slot be provided with several circumferential equally distributed breach; Said O shape rubber ring is installed in the embedding slot, and circumferentially spiral-lock is in the embedding slot of connector evenly distributedly for said several pieces ringfeder pieces, and the inboard of each ringfeder piece is against on the O shape rubber ring, expose outside slotting embryo head in the outside.

As a kind of preferred version, said slotting embryo head comprises that a guide head and is built in the backing member that utilizes metal material to process in the guide head, this backing member and the guide head structure that is formed in one.

As a kind of preferred version; The top indent of said guide head have one be used to be enclosed within the connector lower end cavity; Aforementioned several circumferential equally distributed breach are opened on the sidewall of this cavity; Said ringfeder piece comprises a setting-in portion and a protuberance, and this setting-in portion spiral-lock is in the embedding slot of connector lower end, and this protuberance stretches out outside breach.

As a kind of preferred version; The upper end of said embedding slot has the step chamber; The lower end of said embedding slot and the sidewall of guide head also surround the step chamber, and the setting-in portion of this ringfeder piece and protuberance form ledge structure, and this ledge structure is embedded in the step chamber of aforementioned embedding slot top and bottom.

As a kind of preferred version, the outer wall of said backing member is provided with a bulge loop, and this bulge loop is embedded in the lower end of guide head.

As a kind of preferred version, further include a fixture, this fixture is removable to be fixed on the mandrel lower end after passing backing member and connector.

As a kind of preferred version; Said fixture is a hexagon socket cap head screw; Upwards arch upward and be formed with a containing cavity in the bottom surface of said backing member, and the top of containing cavity is provided with a perforate, and this connector penetration type is provided with a through hole; The head end of this screw is entrapped in this containing cavity, and screw rod passes perforate and through hole and screws and be positioned on the mandrel.

As a kind of preferred version, said mandrel lower end is fixed with a vertical latch that is provided with, and the connector of correspondence is provided with a pin hole, and this latch is inserted in the pin hole locatees.

As a kind of preferred version, be provided with the fin of several ring-types the top raised type of said connector, a pad is folded between the inwall and spring of material returned ring, and several ring-type fins of aforementioned connector outer wall are pressed on this pad.

The utility model compared with prior art has tangible advantage and beneficial effect, particularly, can be known by technique scheme:

One, changes the slotting embryo head in the head of heating of the novel chain of heating and several pieces ringfeder pieces into special modified plastics moulding by the metal material machined piece of tradition; Heat conductivility not, hardness are suitable because special modified plastic material has, good toughness, excellent fatigue resistance, low creep properties, coefficient of friction, heat resistance, abrasion resistance, excellent mechanical property, product size stability, good tough and cryogenic property; Can not insert and hinder the bottle preform mouth inwall; Make the bottleneck that blows out indeformable, the thin water bottle class of bottleneck especially, more remarkable effect; Dimensionally stable; After causing bottle embryo blow molding, more smooth and easy during the bottleneck spiral cover, accurate, seal, make rotary fully-automatic bottle-blowing machine bottle blowing quality to promote significantly, and realize the purpose of sealed, sterile.And this slotting embryo head and several pieces ringfeder pieces be because of can taking conventional processing technology----injection moulding, and greatly reduce manufacturing cost, and part is the injection moulding member, the dimensional accuracy height, and error is little; Having reduced or remitted because of being that machine adds part and must each detect the bigger workload of many quantity one by one, saved a large amount of labor costs, is effective, and the utility model that rotary fully-automatic bottle-blowing machine bottle blowing quality is promoted is comprehensively created.

Two, be divided into slotting embryo head, ringfeder piece, O shape rubber ring through inserting embryo head assembly, this slotting embryo head rises inserts the embryo guide effect, and the ringfeder piece cooperates O shape rubber to enclose the embryo tensioner effect of inserting; Make guiding accuracy height when inserting embryo; Bottle embryo time rotational rocks little, steady, and this is rational in infrastructure, and is functional strong.

Three, through in the guide head of inserting the embryo head, being built-in with the backing member of processing with metal material, help fixture and be located on this backing member, add intrusion embryo head and be assembled into the intensity on the connector.

Four, the guide head of this slotting embryo head is the lower end that is socketed in connector through mode from bottom to top, helps the fixture locking on this slotting embryo head, and assemble method is extremely convenient.

Five, through the ringfeder piece is designed to ledge structure, also have the step chamber in the embedding slot of correspondence, thus with this ledge structure spiral-lock in the step chamber, this chimeric mode makes the ringfeder piece combine closelyr with embedding slot, is difficult for getting loose.

Be architectural feature and the effect of more clearly setting forth the utility model, come the utility model is elaborated below in conjunction with accompanying drawing and specific embodiment.

Description of drawings

Fig. 1 is the assembling schematic perspective view of the embodiment of the utility model;

Fig. 2 is the sectional view of connector among the embodiment of the utility model;

Fig. 3 is the vertical view of connector among the embodiment of the utility model;

Fig. 4 is a front view of inserting the embryo head among the embodiment of the utility model;

Fig. 5 is a vertical view of inserting the embryo head among the embodiment of the utility model;

Fig. 6 is a sectional view of inserting the embryo head among the embodiment of the utility model;

Fig. 7 is the sketch map of ringfeder piece among the embodiment of the utility model;

Fig. 7 a is the vertical view of ringfeder piece among the embodiment of the utility model;

Fig. 7 b is the upward view of ringfeder piece among the embodiment of the utility model;

Fig. 7 c is the left view of ringfeder piece among the embodiment of the utility model;

Fig. 7 d is the sectional view of ringfeder piece among the embodiment of the utility model;

Fig. 8 inserts the sectional view that laterally sections along the ringfeder piece in the embryo head assembly among the embodiment of the utility model;

Fig. 9 is the sketch map that the bottle embryo unloads among the embodiment of the utility model;

Figure 10 is the sketch map that the bottle embryo is packed among the embodiment of the utility model.

The accompanying drawing identifier declaration:

100, heat chain 10, sprocket wheel

20, contiguous block 30, mandrel

31, fixing hole 32, shaft retaining ring

40, axle sleeve 50, the head of heating

51, material returned ring 52, spring

53, spring base 54, connector

541, slot to make way 542, through hole

543, pin hole 544, fin

545, embedding slot 546, step chamber

55, insert embryo head assembly

551, insert embryo head 552, ringfeder piece

553, guide head 554, backing member

555, cavity 556, breach

557, setting-in portion 558, protuberance

559, containing cavity 560, perforate

561, bulge loop 56, fixture

57, O shape annular seal space 58, latch

59, pad 60,70, self-lubricating bearing.

The specific embodiment

Please referring to figs. 1 through shown in Figure 8; It has demonstrated the concrete structure of the preferred embodiment of the utility model; The utility model is applied to beverage bottle, oil bottle, medicine bottle are carried out on the rotary fully-automatic bottle-blowing machine of bottle blowing; This is heated and 50 is used for bottle blank heating, can guarantee bottle blank heating quality, stable and improve rotary fully-automatic bottle-blowing machine bottle blowing product quality, make it security of operation, dependable performance.

With reference to shown in Figure 1; The chain 100 of heating of said bottle blowing machine includes sprocket wheel 10, contiguous block 20, mandrel 30, axle sleeve 40 and heats 50; This mandrel 30 is arranged in the axle sleeve 40 through self-lubricating bearing 60; Sprocket wheel 10 is installed in the top of mandrel 30; Mandrel 30 be through can being slided up and down and gyration in self-lubricating bearing 60 along axle sleeve 40 by outside executing agency drive sprocket 10, said heat 50 be assembled in mandrel 30 the lower end, axle sleeve 40 is realized locating on contiguous block 20 through self-lubricating bearing 70.

Hold, said heating 50 comprises material returned ring 51, spring 52, spring base 53, fixture 56 and slotting embryo head assembly 55, and this slotting embryo head assembly 55 comprises connector 54, inserts embryo head 551, several pieces ringfeder pieces 552 and O shape rubber ring 57.

Said connector 54 is fixedly connected on the lower end of mandrel 30; In conjunction with Fig. 2 and shown in Figure 3; This connector 54 approximately is column structure; Be concaved with one in the top of this connector 54 and be used for the slot to make way 541 of winding on mandrel 30, and be provided with a through hole 542 in the bottom of slot to make way 541 to the bottom surface of connector 54 penetration type, this through hole 542 is used to supply fixture 56 to pass.Other slot to make way 541 bottom surfaces of these through hole 542 sides are concaved with a pin hole 543, in being clamped on for latch 58.Also have, be provided with the fin 544 of several ring-types the top raised type of this connector 54, these fins 544 can make connector 54 setting-ins get more firm; Outside wall surface is provided with the embedding slot 545 of a ring-type in the bottom of connector 54, is used for ccontaining following ringfeder piece 552, and the installed inside of this embedding slot 545 has an O shape rubber ring 57, is used for tensioner ringfeder piece 552.

As shown in Figure 1, to said fixture 56, end upwards is concaved with a fixing hole 31 under this mandrel 30, and the through hole 542 that aforementioned fixation part 56 passes connector 54 is fixed in this fixing hole 31, thereby connector 54 is pressed in mandrel 30 lower ends.In the present embodiment, said fixture 56 is a hexagon socket cap head screw.Further, the other vertical latch 58 that is provided with that is fixed with of the side of the fixing hole 31 of these mandrel 30 lower ends, this latch 58 is inserted in the pin hole 543 of connector 54, to realize the location of connector 54 in mandrel 30 bottoms.

To said material returned ring 51 and spring base 53, all be formed with ledge structure in the inside and outside of axle sleeve 40 bottoms, the upper end of this material returned ring 51 is socketed on the ledge structure of wall outside the axle sleeve 40, and the lower end is enclosed within outside the aforementioned connector 54.Mandrel 30 outer walls at these material returned ring 51 tops are provided with a shaft retaining ring 32, one spring bases 53 and are enclosed within outside this mandrel 30, are fixed on the shaft retaining ring 32, and another spring base 53 covers also are enclosed within outside the mandrel 30, are fixed on the interior step of axle sleeve 40 bottoms.Aforementioned spring 52 is enclosed within outside the mandrel 30, mandrel 30 is butted between two spring bases 53 with resetting.One pad 59 is folded between the inwall and spring 52 of material returned ring 51, and several ring-type fins 544 of aforementioned connector 54 outer walls are pressed on this pad 59.

551 slotting embryo guide effects of said slotting embryo head, ringfeder piece 552 plays the effect of slotting embryo tensioner, and rotation is rocked little, steady behind the slotting embryo.

From material; Should insert embryo head 551 is to process with the suitable modified plastic rubber of a kind of performance with ringfeder piece 552; Through the modification to manufacturing materials, 50 bottle preform mouths that in the process of heating, cause of heating that can thoroughly solve the chain 100 of heating of bottle blowing machine such as are out of shape, burn, pull at a quality difficult problem; And after adopting special modified plastics spare material, not only bottle blowing technology improves, bottle blowing product obtains quality assurance, and can take conventional processing technology----injection moulding; Thereby greatly reduce manufacturing cost; Part is the injection moulding member, makes the product size precision high, and error is little; Reduced or remitted because of be machine add part must each detect the but bigger many workloads of quantity one by one; In addition, adopt special modified plastics spare material after, the wearing and tearing between the part are lowered, part each side quality obtains better guarantees.

In the present embodiment; Said modified plastic material is a kind of high performance engineering material that a kind of modification of fatty polyamide through glass fibre of high structure obtains; Its molecular structure is similar with nylon 66, but the acid amides group number on the main chain more multichained construction more the symmetry, degree of crystallinity is up to 70%; And crystallization rate is fast, and these molecular structures have given material outstanding physics, mechanical performance.

This modified plastic material has the following advantages:

1, have excellent mechanical property: hardness, rigidity and intensity are 2-3 times of common nylon, and its hot strength reaches 160-210MPa;

2, heat resistance significantly improves: generally speaking, the nylon heat distortion temperature is 100 ℃, and the modified plastics that is adopted reaches 260 ℃;

3, stable linear shrinkage has improved the product size stability, is more suitable for using in the precision parts field;

4, product serviceability has more reliably been given in the fatigue resistance of excellence, low creep properties.

5, excellent friction coefficient and abrasion resistance and good tough and cryogenic property.

From structure, this slotting embryo head 551 is assembled in heats 50 bottom.Extremely shown in Figure 6 like Fig. 4; Should insert embryo head 551 and comprise the backing member 554 that the guide head 553 and that utilizes plastic material to process utilizes metal material to process; The top indent of this guide head 553 have one be used to be enclosed within connector 54 lower ends cavity 555; And the embedding slot 545 to connector 54 lower ends also is provided with several breach 556 on this guide head 553.Be embedded in the bottom of guide head 553 in this backing member 554, this backing member 554 and slotting embryo head 551 can one-body molded or split assemblings, and upwards arch upward and be formed with a containing cavity 559 in the bottom surface of backing member 554, and the top of containing cavity 559 is provided with a perforate 560.The outer wall of containing cavity 559 is provided with a bulge loop 561, with the plastic cement of chucking guide head 553.The head end of aforementioned fixation part 56 can be embedded in this containing cavity 559 just, and this perforate 560 is passed by the bar portion of fixture 56, and this backing member 554 can strengthen the intensity of inserting embryo head 551, helps the assembling of fixture 56.

Like Fig. 7 and shown in Figure 8; The shape of said several pieces ringfeder pieces 552 is identical; Each ringfeder piece 552 comprises a setting-in portion 557 and a protuberance 558; This embedding shape portion correspondence is installed in the embedding slot 545, and its inboard is against on the O shape rubber ring 57, and expose outside the breach 556 of inserting embryo head 551 in the outside of this protuberance 558.And, because O shape rubber ring 57 is installed in embedding slot 545 inboards, be against in the setting-in portion 557, make ringfeder piece 552 have elasticity.In the present embodiment; The setting-in portion 557 of this ringfeder piece 552 forms ledge structure with protuberance 558; The upper end of the embedding slot 545 of correspondence has step chamber 546; The sidewall of the lower end of said embedding slot 545 and guide head 553 also surrounds step chamber 546, and this ledge structure is embedded in the step chamber 546 of aforementioned embedding slot 545 top and bottom.

The moulding and the assembling process of the utility model are following: ringfeder piece 552 changes special modified plastics moulding into by original metal material machined piece; Insert embryo head 551 and change special modified plastics injection moulding sub-assembly into by original integral metal material machined piece; Wherein insert the lower end that embryo head 551 is enclosed within connector 54 from the bottom to top; The backing member 554 that the center contacts with fixture 56 is to be processed by metal material; 553 two combinatorial injection moldings of this backing member 554 and guide head become whole, insert embryo head 551 and pass through hole 542 through fixture 56 and screw and be connected the location with mandrel 30 surely, meanwhile load onto O shape rubber ring 57; Buckle well ringfeder piece 552 and material returned ring 51 with its contained spring seat 53, shaft retaining ring 32, spring 52, mandrel 30 and connector 54 location, stop are controlled by a little perpendicular latch 58.Chain 100 systems realize inserting embryo, the whole action of heating, unloading embryo and an operation cycle process through rotation and transmission regularly heating.

Fig. 9 and shown in Figure 10 be the sketch map that the utility model bottle embryo unloads and packs into, heat after 50 installing, a bottle embryo can be packed into.The bottle embryo by output in the bottle blowing mechanism embryo parts get into heat accurate position, parts blastodisc place, rotation and driven type heat 50 insert embryo head 551 by mechanism controls motion accurate distance vertically downward; Embryo head and ringfeder piece 552 insert bottle preform mouth; Because ringfeder piece 552 is radially oppressed O shape rubber ring 57 and produced tension force and tensioner,, make a bottle idiosome be heated deliquescing after the requirement degree through heating carrier chain rotation and drive to the bottle blank heating device region; Rotation and drive to out the accurate position of blastodisc; By mechanism controls, 52 actings of material returned ring 51 contained springs are unloaded the bottle embryo from slotting embryo head 551, ringfeder piece 552, sent in the bottle blowing machine main frame bottle die cavity by mechanical tong clamping in the rotation again; Be blown into certain pure air through blow gun, blow out the doleiform of certain specification by the control of bottle mould.Rotate to when sending bottle position, press from both sides out to sending a bottle mechanism, until converging into integrated bucket at last by mechanical tong then; Accomplish required whole bottle blowing course of action: an operation cycle.

In sum; The design focal point of the utility model is; It mainly is to change insert embryo head and several pieces ringfeder pieces metalwork by tradition as special modified plastics moulding into, brings the following beneficial effect that has: 1, make insert the embryo head and several pieces ringfeder piece heat-proof qualities good, do not cause bottleneck to pass to be heated the back distortion; 2, suitable, the good toughness of hardness does not cause the scratch of bottleneck mechanical type, the thin water bottle class of bottle preform mouth wall especially, more remarkable effect, more smooth and easy during the bottleneck spiral cover, accurate, sealing and realize the purpose of sealed, sterile; 3, have excellent fatigue resistance, low creep properties, coefficient of friction, heat resistance, abrasion resistance and given that product size is consistent, stable, interchangeability is good; 4, realize conventional process for machining and manufacturing----injection moulding member, reduced the processing and manufacturing difficulty, practiced thrift cost significantly; 5, special modified plastics density is little more than 6 times than metal material, and part is light and handy; 6, batch part only need be inspected by random samples, need not each and detects one by one, has practiced thrift labor cost significantly.

In addition, be divided into and insert embryo head, ringfeder piece, O shape rubber ring through inserting embryo head assembly, this slotting embryo head rises inserts the embryo guide effect, and the ringfeder piece cooperates O shape rubber to enclose the embryo tensioner effect of inserting; Make guiding accuracy height when inserting embryo; Bottle embryo time rotational rocks little, steady, and this is rational in infrastructure, and is functional strong.

Moreover, through in the guide head of inserting the embryo head, being built-in with the backing member of processing with metal material, help fixture and be located on this backing member, add intrusion embryo head and be assembled into the intensity on the connector.

Also have, the guide head of this slotting embryo head is the lower end that is socketed in connector through mode from bottom to top, helps the fixture locking on this slotting embryo head, and assemble method is extremely convenient.

In addition,, also have the step chamber in the embedding slot of correspondence through the ringfeder piece is designed to ledge structure, thus with this ledge structure spiral-lock in the step chamber, this chimeric mode makes the ringfeder piece combine closelyr with embedding slot, is difficult for getting loose.

The above; It only is the preferred embodiment of the utility model; Be not that the technical scope of the utility model is done any restriction; So every technical spirit according to the utility model all still belongs in the scope of the utility model technical scheme any trickle modification, equivalent variations and modification that above embodiment did.

Claims (9)

1. the head of heating of a bottle blowing machine, comprise one be used to be connected the axle sleeve bottom material returned ring, be butted between mandrel bottom and the axle sleeve lower end and the spring and that mandrel is resetted is used to be connected the slotting embryo head assembly of mandrel lower end, it is characterized in that:

Said slotting embryo head assembly comprises that one is used for fixing slotting embryo head and several pieces ringfeder pieces that the connector, on mandrel can produce the O shape rubber ring of tension force and utilize the modified plastic rubber material to process; To these several pieces ringfeder pieces; Lower end in connector is concaved with embedding slot; Said slotting embryo head be coated on from bottom to top connector the lower end, and corresponding embedding slot be provided with several circumferential equally distributed breach; Said O shape rubber ring is installed in the embedding slot, and circumferentially spiral-lock is in the embedding slot of connector evenly distributedly for said several pieces ringfeder pieces, and the inboard of each ringfeder piece is against on the O shape rubber ring, expose outside slotting embryo head in the outside.

2. the head of heating of bottle blowing machine according to claim 1, it is characterized in that: said slotting embryo head comprises that the guide head and that utilizes plastic material to process is built in the backing member that utilizes metal material to process in the guide head, this backing member and the guide head structure that is formed in one.

3. the head of heating of bottle blowing machine according to claim 2; It is characterized in that: the top indent of said guide head have one be used to be enclosed within the connector lower end cavity; Aforementioned several circumferential equally distributed breach are opened on the sidewall of this cavity; Said ringfeder piece comprises a setting-in portion and a protuberance, and this setting-in portion spiral-lock is in the embedding slot of connector lower end, and this protuberance stretches out outside breach.

4. the head of heating of bottle blowing machine according to claim 3; It is characterized in that: the upper end of said embedding slot has the step chamber; The lower end of said embedding slot and the sidewall of guide head also surround the step chamber; The setting-in portion of this ringfeder piece and protuberance form ledge structure, and this ledge structure is embedded in the step chamber of aforementioned embedding slot top and bottom.

5. the head of heating of bottle blowing machine according to claim 2, it is characterized in that: the outer wall of said backing member is provided with a bulge loop, and this bulge loop is embedded in the lower end of guide head.

6. the head of heating of bottle blowing machine according to claim 2 is characterized in that: further include a fixture, this fixture is removable to be fixed on the mandrel lower end after passing backing member and connector.

7. the head of heating of bottle blowing machine according to claim 6; It is characterized in that: said fixture is a hexagon socket cap head screw; Upwards arch upward and be formed with a containing cavity in the bottom surface of said backing member, and the top of containing cavity is provided with a perforate, and this connector penetration type is provided with a through hole; The head end of this screw is entrapped in this containing cavity, and screw rod passes perforate and through hole and screws and be positioned on the mandrel.

8. the head of heating of bottle blowing machine according to claim 1 is characterized in that: said mandrel lower end is fixed with a vertical latch that is provided with, and the connector of correspondence is provided with a pin hole, and this latch is inserted in the pin hole locatees.

9. the head of heating of bottle blowing machine according to claim 1; It is characterized in that: the fin that is provided with several ring-types the top raised type of said connector; One pad is folded between the inwall and spring of material returned ring, and several ring-type fins of aforementioned connector outer wall are pressed on this pad.

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