CN1040406C - Blow moulding machine - Google Patents
Blow moulding machine Download PDFInfo
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- CN1040406C CN1040406C CN92101603A CN92101603A CN1040406C CN 1040406 C CN1040406 C CN 1040406C CN 92101603 A CN92101603 A CN 92101603A CN 92101603 A CN92101603 A CN 92101603A CN 1040406 C CN1040406 C CN 1040406C
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- container
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- blow mold
- circle
- moulding machine
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Abstract
The present invention relates to a blow moulding machine for making a high-volume container having a ring flange from thermo-plastic synthetic materials. Two kinds of containers in different classes can be made up in the same blow mould by exchanging an exchangeable annular embedded part, and the containers comprise a plug type container and a detachable cover type container.
Description
The present invention relates to blow moulding machine with blowing hollow body, the particularly large-volume receptacle of thermoplastic synthetic material manufacturing, and corresponding method of manufacture.
The conventional process technology of this respect is to extrude the tubular parison of a thermoplastic synthetic material between half one that opens of a suitable blow mold, from the tubular die head of an accumulator, subsequently with blow molding die half closure, parison between blow molding die half one up and down by pinching, and be blow molded into the hollow body that its profile is equivalent to the in-profile appearance of corresponding blow molding die by being blown into compressed air, the synthetic material container of a big volume for example.
About the equipment aspect, the blow mold that is used for this purpose is known, can make for example chock plug formula container of sealing with this mould, have two plug holes on its top surface, in zone, be provided with flange circle (lift and transport with circle or loading and unloading and roll with circle) with circle or periphery near top surface and/or lower surface.Here the used technology of passing through can axially movable slip module to squeeze out the periphery flange circle also is for those skilled in the art are known.
In addition, the vessel of removable cover formula container (wide-mouth pail pack) is that the blow mold of outside blow molding therein also is known.This blow mold also has a slip module and is used to squeeze out peripheral housing flange as the relative supporting mass of clamping ring, this clamping ring similarly blocks the outward flange in the container cover at the upper container edge place of close vessel port, and the diameter of opening is identical with container.Blow mold like this with permanent conjugate ring-type slip module, being proved in making container is of great use, and be used in a lot of in the world country to make high-quality, have from chamber wall and be molded into or the synthetic material container of the flange circle that extruding is come out.
If container manufacturer want be used to his having to make a kind of container type, for example chock plug formula container, the blow moulding machine of blow mold change over and be used to make another kind of container type, for example removable cover formula container, what so, he at first needed is corresponding second blow mold.Like this, for the very big blow mold of these investments, have only a kind of mould can be used for the cell therefor manufacturing in each case, other blow mold then is placed in the storehouse and does not use.
Convert another kind of container type to from a kind of container type, way up to now is that first kind of blow mold must be pulled down together with its corresponding blowing gaseous core, and second kind of blow mold must install together with its relevant cooperation blowing gaseous core and place.In addition, the feature operation of blow moulding equipment or control also must be adjusted or be changed to adapt to another kind of container type.
This is crossed range request and shuts down a few hours, thereby causes corresponding production loss.
Therefore purpose of the present invention is exactly to provide a kind of blow moulding machine with a kind of new blow mold for container manufacturer, use this new blow mold, blow moulding machine just can be transformed into another second container type from first container type with the time that is shorter than up to now.
According to the present invention, a kind of blow moulding machine that is used for being had by the thermoplastic synthetic material manufacturing the big volume blow-molded container of extruding collar flange is provided, has a blow mold of forming by two blow mold that can move horizontally half ones, a tubular parison is squeezed in it and is blow molded into the profile of vessel, meanwhile on blow mold, squeeze out collar flange by means of a sliding mould, blow mold is configured to make the basic mould of first container type, an i.e. chock plug formula container, it has one and circumferentially lifts and transport with circle and have at least one plug hole opening on container upper surface in the neighboring area of vessel surface, lift and transport with circle for the material from chamber wall squeezes out, blow mold and/or sliding mould be provided with one removable have lift and transport with the circle profile the first endless member group, and for from first container type, it is chock plug formula container, convert another kind of second container type fast to, it is removable cover formula container body, by means of inserting blow mold and can being fixed on corresponding replaceable endless member group within the blow mold, described blow mold and/or sliding mould can be switched to the container shapes of second container type, the removable cover formula container body that promptly has a peripheral housing flange in the neighboring area of upper container opening part, the removable second endless member group have been predetermined the shape of the solid housing flange on the removable cover formula container body (60) and corresponding with it.
Advantageously, for example be used for from chock plug formula vessels switchover become removable cover formula container body or turn around, the endless member group can switch and blow mold or slip module need not be unloaded from blow moulding machine.So can successfully realize this point be because be fixed on the endless member group on the blow mold or the slip module on fixture, preferably screw, can be from the outside or obtain and can operate from the bottom surface contact.When switching, the blowing gaseous core does not need conversion, and blow moulding equipment also need not change and adapts to another kind of type.
For make a kind of container, be shaped at least one on it, preferably have a periphery in the neighboring area of the upper surface of two plug holes and lift and transport chock plug formula container with circle, blow mold is in the mould side and/or be used to push and be equipped with one to overlap and have the endless member group of switching that lifts and transport with the contour shape that encloses on the corresponding relevant fixedly blow mold parts that lift and transport with circle.
One such lifts and transports with circle, for example disclosing on European patent EP-A-0324882, it makes the chock plug formula container of a synthetic material can equally use same container handgrip (butterfly folder) to operate with the conventional chock plug formula container with the steel plate manufacturing for the first time.
In order to make the removable cover formula container of a what is called that for example the disclosed world is known on German patent DE-PS2544491 " the removable cover formula container of standard ", solid housing flange wherein is that the distance of about 40mm below the outer wall upper container oral area of container pushes out, as long as that switches chock plug formula container lifts and transports endless member group with circle, be bumped into limit solid housing flange or the removable cover formula container suitable with it the endless member group just.
Advantageously, the endless member group that lifts and transport with the housing flange of the endless member group of circle and removable cover formula container body that is used to make chock plug formula container comprises at least two peripheral annular parts, one of them ring-shaped article as the type circle is fixed on the fixing blow molding die parts, and another ring-shaped article as the extruding circle removably is fixed on the slip module.Therefore, as long as the synthetic material container of switching endless member group-this operation and only needing a few minutes-twos' kind of complete dissimilar (kinds) just can create in a single blow mold.Here even need not change program or the correction or the conversion blowing gaseous core of machine control, because blowing gaseous core or two blowing gaseous cores (being used for making the chock plug connector on the upper surface of chock plug formula container) are top loading for good and all often, similarly can be used for making removable cover formula container body.Like this, when making removable cover formula container body, the waste part (having cold burden) that scales off from the opening of removable cover formula container has the shape with the upper surface of the chock plug formula container of chock plug perforate.Directly be recovered in the extruder after waste part is pulverized and use as raw material.
In one embodiment of the invention, blow mold is provided with one second slip module as basic mould, is used for squeezing out one second all flange in the transitional region from the bottom container wall to container lower surface and rolls with circle as the surface.Use this method, chock plug formula container just can be made and have two of upper and lowers and lift and transport with circle, and perhaps removable cover formula container can be made and have lower surface and roll with circle.If customer requirement for example provides and do not roll with the chock plug formula container or the removable cover formula container of circle with lower surface, be used for compressive surface and roll and be bumped into part with the ring-type of enclosing and be bumped into part and substitute with a base ring shape that closes with smooth interior contour shape of being equivalent to vessel surface.So, be used to make surperficial rolling and use the slip module of circle inoperative, so just produce the not belt surface rolling synthetic material container that encloses at an easy rate.
In an alternative embodiment of the invention, blow mold is provided with another blow molding die in the zone that constitutes the bottom container wall and is bumped into part, this is bumped into part and sees it is to be designed to wedge shape or leg-of-mutton from sectional view, be bumped into the lower surface of the broadside of part, and be bumped into the container finish of the narrow sharp limit of part towards removable cover formula container body towards container.This another kind of blow molding die that is used for making conical removable cover formula container body be bumped into scope that part allows to the container type made at same blow mold more shape enlarge.
Below in conjunction with the example embodiment that accompanying drawing schematically illustrates the present invention is done comparatively detailed description, in the accompanying drawings,
Fig. 1 illustrates a blow moulding machine that has in order to the conventional blow mold of making removable cover formula container;
Fig. 2 illustrates a blow mold that has in order to the slip module of making known chock plug formula container;
Fig. 3 illustrates the details that is used to make the bottom right part that has the blow mold that lifts and transport the chock plug formula container of using circle of the present invention, and the slip module is in open mode;
Fig. 4 illustrates the blow mold of Fig. 3, and the slip module is in closure state;
Fig. 5 illustrates the improvement embodiment of the blow mold of a kind of Fig. 3, is used to make removable cover formula container, and the slip module is in open mode;
Fig. 6 illustrates the blow mold of Fig. 5, and the slip module is in closure state;
Fig. 7 is illustrated in the chock plug formula container (left side) made in the blow mold of the present invention and the part diagrammatic sketch of removable cover formula container (right-hand part),
Fig. 8 illustrates the taper removable cover formula container embodiments of a remodeling.
In Fig. 1, label 10 refers to the blow moulding machine of a prior art, it have can move horizontally, be clamped in mould half one 12 on the mold fixed plate, that be used to make removable cover formula container, can see a storing cylinder head 14 above blow molding die half one 12 with one from the tubular die head 16 of wherein extruding the tubular parison 18 between a mould of opening half one 12.Parison 18 landings below, on the larger-size blowing gaseous core 20, parison is clamped between closed mould half one 12, and is blown into to obtain the removable cover formula container body of its shape corresponding to the blow mold in-profile via the blowing gaseous core with compressed air.
The oral area of removable cover formula container body or vessel port are at the side of blowing gaseous core 20 in manufacture process in the bottom of blow mold; The slip module that is squeezed into the housing flange in order to the material of the chamber wall of calm body also is arranged on the there.
In Fig. 2, for being used to make and having the upper and lower and lift and transport with circle 28 or claim the blow mold 24 of loading and unloading with the known chock plug formula container 26 of circle of a prior art only is shown for the purpose of clear.For extrusion molding week flange 28, blow mold 24 disposes a top and a bottom slip module 30.Chock plug formula container 26 also is that routinely inverted position is made in blow mold, and two chock plug connector is moulded round two blowing gaseous cores 32 on the upper surface of chock plug formula container 26 and made shape.Left-hand component among the figure illustrates slip module 30 in open mode, and this moment, parison blew out; Its closure state is illustrated in the right-hand component of figure, lifts and transport this moment with enclosing 28 to be squeezed into solid and to fuse together.
In Fig. 3, illustrate to be used to make with the vertical section and have a lower right-most portion of blow mold of the present invention chock plug formula container, that have slip module 30 (half one) 34 that lifts and transport with circle.
The slip module 30 that has dress threaded insert 76 thereon can move vertically by a fluid pressure drive device 36 and a lifting arm 38, and for one 220 liters chock plug formula container, lift stroke for example is approximately 45mm.
The upper member 40 of blow mold 34 disposes one and is tightened in type circle 42 on the blow molding die parts 40 by a wheel flange 44.Corresponding with it, being fixed on can axially movable slip module 30 be an extruding circle 46.As fixture be screw 48, these screws preferably can freely touch from the outside or from following, and can make ring-type be bumped into part 42,44,46 can to get simply and change and do not need slip module or whole blow mold are unloaded down.For this purpose, in slip module 30, be provided with for example through hole 80.Type circle 42 and wheel flange 44 can certainly be made a single ring-type and be bumped into part.In Fig. 3, be moved downward to open position with threaded insert 76 and the slip module 30 that pushes circle 46.The outside blowing of tubular parison enters at type circle 42/ wheel flange 44 and pushes in the annulus that encloses between 46.
In Fig. 4, slip module 30 is closed, and the synthetic material in the annulus between type circle 42/ wheel flange 44 and extruding circle 46 has been extruded and has fused into one and solid had the lifting and transport with enclosing (seeing the upper left side of Fig. 7) of known favorable structure.
Fig. 5 illustrates the basic mould that is transformed into the blow mold 34 that is used to make removable cover formula container body.
The type circle 42 and the extruding circle 46 that are used to make chock plug formula container have been taken away, and the type circle 50 and the extruding circle 52 of contour shape with vessel port of housing flange and removable cover formula vessel loaded onto.Slip module 30 is shown in an open position, and tubular parison can be blow molded and enters by in type circle 50, wheel flange 44 and the extruding circle 52 free annuluses that limited.
In Fig. 6, slip module 30 is closed, and the synthetic material in free annulus has been pressed together and fuse into a solid housing flange (seeing the last right side of Fig. 7).
In the illustrated embodiment, extruding was enclosed for 52 (being equivalent to 46) and is also slided when whole slip module slides, and its cylindrical outer wall suffers on the corresponding cylinder shape inner wall of wheel flange 44.When slidingsurface after operation over a long time when having stood wearing and tearing, only need be bumped into a new wheel flange 44 with that reduce or adaptive internal diameter just as wear-out part.In order to change or the stroke of the module that reduces to slide, can insert suitable roll adjustment piece 78.
Fig. 7 illustrates with the portions form can be with making up different types of container type that blow mold is made.The left-half of figure illustrates a chock plug formula container 54, this container has at least one chock plug connector (not shown) on its closed chock plug formula container upper surface 56, and having one, to be configured to almost similarly be that the top of the portion that extends axially of chamber wall lifts and transports with circle 58, as first kind of container type.The right half part of figure illustrates a standard removable cover formula container that has removable cover formula container body 60, container cover 62 (having inserted seal) and clamping ring 64.U-shaped clamping ring 64 be pressed in the lid flange 66 of off normal radially outward top and solid housing flange 68 below, this housing flange squeezes out from chamber wall, and from chamber wall off normal radially outward, owing to be pressed with seal on the upper limb of container, it is airtight close with liquid that the seal of vessel of removable cover formula becomes.If desired, also can dispose one or two chock plug connector on the container cover 62.
The bottom of chock plug formula container and removable cover formula container body is duplicate, all has to be roughly columniform middle body and a lower surface rolling circle 70, and this rolls with the device that encloses is the container of having filled for the ease of in the rolling of canting position.
At last, shown in Figure 8ly can be bumped into the another kind of Product Variant that part 74 is made by in the combination blow mold, adding an other blow molding die.
The blow molding die that only schematically illustrates with dotted line is bumped into part 74 and includes two and half housings basically in the drawings, its in-profile shape is equivalent to the outer contoured shape of taper removable cover formula container body 72, its outer contoured shape roughly is equivalent to the in-profile shape of blow mold 34 (basic mould), or the exterior contour of removable cover formula container body 60.In the situation of taper removable cover formula container body 72 shown in Figure 8, these containers can stack under the state of sky mutually, thereby it is just identical with the container body of the cylindrical shape removable cover formula container body 60 shown in Fig. 7 right-hand part only to have the upper container oral area (amplify separately draw) of housing flange 68 basically.The taper blow molding die is bumped into part 74 and can be fixed in simple mode; The outside that is bumped into the bottom of part at blow molding die constitutes one and rolls with the identical peripheral protuberance of shape that encloses 70 with the surface.Half one that blow molding die is bumped into part pushes the surface rolling with in the circle otch with its protuberance, and then closure surfaces is rolled and used circle slip module, taper is bumped into part fixedly clamps securely.If desired, also can add and put an extra fixture (clamp screws) at the top.
Like this, the blow molding die that is transformed into removable cover formula container from the blow mold of chock plug formula container just can be realized with extremely low cost: removal extruding circle 46 and type circle 42 (44), load onto extruding circle 52 and type circle 50 (44) then.In addition, also can load onto a roll adjustment piece 78 to reduce stroke.The slip module 40 and the blowing gaseous core 32 of chock plug formula all remain unchanged; The programme-control of blow moulding equipment does not change yet.
Be not with the chock plug formula container of loading and unloading if want to make, then can load onto the suitable end of closing to be bumped into part to replace extruding circle and type circle with circle.According to same scheme, the lower surface position or at the contour shape at upper and lower surperficial position also change simultaneously.
Though it is known in the prior art, at the multi-part blow mold that is used for making small container (suitcase or bottle), can change specific mould changes the capacity of container or changes a special outward appearance (decoration of bottle), but product do not had basic change here, just as the said size of suitcase or (part) appearance of bottle of only having changed.In the present invention, say it is that diverse large-volume receptacle type can create from kind a single blow mold for two kinds.
Like this, container manufacturer just can make his blow moulding machine or the blow molding die needs that adapt to different clients or shape of product with the simple measure of switching fast.
Claims (9)
1. one kind is used for having extruding collar flange (58 by the thermoplastic synthetic material manufacturing, the blow moulding machine of big volume blow-molded container 68), has a blow mold (34) of forming by two blow mold that can move horizontally half ones, a tubular parison is squeezed in it and is blow molded into the profile of vessel, meanwhile on blow mold (34), squeeze out collar flange (58 by means of a sliding mould (30), 68), blow mold (34) is configured to make the basic mould of first container type, an i.e. chock plug formula container (26,54), it has one and circumferentially lifts and transport with enclosing (58) and have at least one plug hole opening on container upper surface (56) in the neighboring area of vessel surface (56), lift and transport with circle (58) for the material from chamber wall squeezes out, blow mold (34) and/or sliding mould (30) be provided with one removable have lift and transport with the circle (58) profile the first endless member group (42,44,46), and for from first container type, it is chock plug formula container (26,54), convert another kind of second container type fast to, it is removable cover formula container body (60), by means of inserting blow mold (34) and can being fixed on corresponding replaceable endless member group (42 within the blow mold (34), 44,46; 50,44,46), described blow mold (34) and/or sliding mould (30) can be switched to the container shapes of second container type, the removable cover formula container body (60) that promptly has a peripheral housing flange (68) in the neighboring area of upper container opening part, the removable second endless member group (50,44,52) has been predetermined the shape of the solid housing flange (68) on the removable cover formula container body (60) and corresponding with it.
2. blow moulding machine as claimed in claim 1 is characterized in that endless member group (42,44,46; 50,44,46) can change and not need blow mold (34) or slip module (30) are unloaded from blow moulding machine (10).
3. blow moulding machine as claimed in claim 1 or 2 is characterized in that being used for endless member group (42,44,46; 50,44,46) be fixed to fixture on blow mold (34) or the slip module (30), preferably screw (48) can touch from the outside or from the bottom surface, that is to say exercisable.
4. blow moulding machine as claimed in claim 1 or 2, it is characterized in that being used for the endless member group (42,44,46) that lifts and transport usefulness circle (58) of chock plug formula container (54), the endless member group (50,44,52) that perhaps is used for the housing flange (68) of removable cover formula container body (60), comprise at least two peripheral annular parts, one of them ring-shaped article is fixed on the fixing blow molding die parts (40) as a type circle (42,50), and another ring-shaped article removably is fixed on the slip module (30) as an extruding circle (46,52).
5. blow moulding machine as claimed in claim 1, it is characterized in that blow mold (34) has one second sliding mould (30 ') as basic mould, is used for squeezing out one second all flange and rolls with circle (70) as the surface in the transitional region from the bottom container wall to the container lower surface.
6. blow moulding machine as claimed in claim 1, it is characterized in that, in order to make the removable cover formula container body (72) of a taper, in the zone of bottom container wall, in blow mold (34), be bumped into half hull shape blow molding die in addition and be bumped into part (74), this is bumped into part and sees from the cross section and be designed to roughly be wedge shape, be bumped into the lower surface of the broadside of part (74), and be bumped into the container finish of the narrow sharp limit of part (74) towards removable cover formula container body (72) towards container.
7. blow moulding machine as claimed in claim 1 is characterized in that, in order to change or reduce the stroke of sliding mould, can fix a demountable roll adjustment piece (78) between sliding mould (30) and the blow molding die parts of fixing (40).
8. the method that on blow moulding machine, has the big volume blowing hollow body of crush ribs circle with the thermoplastic synthetic material manufacturing, wherein can in blow mold, produce first container type that has a housing flange that squeezes out in the upper container zone with a sliding mould as basic mould, and the blow mold that can also assemble conversion by the removable endless member group of transducer set wherein, thereby can produce diverse second container type that has a housing flange that squeezes out in the upper container body region.
9. method as claimed in claim 8, it is characterized in that in blow mold a closed type chock plug formula container can blowing going out as first container type, it has at least one plug hole opening and has a top and/or the bottom lifts and transports with circle on the upper face of container; In this blow mold, can also blowing go out a removable cover formula container body as second container type, it has one and is arranged on upper container zone or near the solid housing flange vessel port, as the supporting mass of a container cover, perhaps as the relative supporting mass of a clamping ring closure device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92101603A CN1040406C (en) | 1992-03-09 | 1992-03-09 | Blow moulding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92101603A CN1040406C (en) | 1992-03-09 | 1992-03-09 | Blow moulding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1076154A CN1076154A (en) | 1993-09-15 |
| CN1040406C true CN1040406C (en) | 1998-10-28 |
Family
ID=4939203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92101603A Expired - Fee Related CN1040406C (en) | 1992-03-09 | 1992-03-09 | Blow moulding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1040406C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496055A (en) * | 2013-09-26 | 2014-01-08 | 上海福将塑胶工业集团有限公司 | Packaging barrel forming mold |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3809356A (en) * | 1972-09-06 | 1974-05-07 | J Doyel | Molding die block |
| EP0297196A1 (en) * | 1987-04-03 | 1989-01-04 | Chell Snc | Mould for manufacturing plastics objects having different heights and mouthpieces |
-
1992
- 1992-03-09 CN CN92101603A patent/CN1040406C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3809356A (en) * | 1972-09-06 | 1974-05-07 | J Doyel | Molding die block |
| EP0297196A1 (en) * | 1987-04-03 | 1989-01-04 | Chell Snc | Mould for manufacturing plastics objects having different heights and mouthpieces |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1076154A (en) | 1993-09-15 |
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