CN109366941A - A kind of blow molded bottle preforming tool and blow molded bottle moulding process - Google Patents
A kind of blow molded bottle preforming tool and blow molded bottle moulding process Download PDFInfo
- Publication number
- CN109366941A CN109366941A CN201811189389.3A CN201811189389A CN109366941A CN 109366941 A CN109366941 A CN 109366941A CN 201811189389 A CN201811189389 A CN 201811189389A CN 109366941 A CN109366941 A CN 109366941A
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- China
- Prior art keywords
- bottle
- blowing
- bottle embryo
- embryo
- heating
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/4823—Moulds with incorporated heating or cooling means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/64—Heating or cooling preforms, parisons or blown articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/4823—Moulds with incorporated heating or cooling means
- B29C2049/4838—Moulds with incorporated heating or cooling means for heating moulds or mould parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7158—Bottles
Abstract
The invention discloses a kind of blow molded bottle preforming tools, including body, molding die be set to the body and can be along the blow molding mechanism that body height direction moves, the molding die is arranged below the body, and it is located at below the blow molding mechanism, the molding die includes two pre-blowing templates, and two the pre-blowing template can carry out moving close to each other or be located remotely from each other along the body width direction, when the fitting of the two pre-blowing templates, the binding face of the two pre-blowing templates cooperatively forms preforming chamber, and the pre-blowing template is suitable for heating the preforming chamber, the preforming chamber is for placing bottle embryo, the blow molded bottle preforming tool, which can be avoided in blow molded bottle preform process, there is the case where uneven heating, the invention also discloses a kind of its production costs that can reduce blow molded bottle of blow molded bottle moulding process, it avoids simultaneously When blow molded bottle forms, there is the problem of blowing quick-fried or became uneven in finished product bottle.
Description
Technical field
The present invention relates to a kind of blow molding technology fields more particularly to a kind of blow molded bottle preforming tool and blow molded bottle to form work
Skill.
Background technique
Currently, existing plastic bottle etc. is all in preparation process, to need first finished product bottle embryo using made of bottle blowing machine,
Then again bottle embryo blow and make its molding.And plastic bottle generally uses polypropylene as raw material, this material of polypropylene its
Toughness itself is poor, and in blow-moulding process, bottle embryo needs to extend molding under the influence of air pressure, due to blow molded bottle and bottle embryo
Between size there are larger gap, be easy to appear in blow molded bottle forming process and blow quick-fried or became uneven or uneven thickness etc. and ask
Topic, and be to avoid the occurrence of the mode that the existing way of the above problem is the thickness of increase bottle embryo, so that bottle embryo, which can take to be extended to, to be needed
The size wanted, without damaged and problem on deformation, but it is more to use this kind of mode product raw material to use, and finished product bottle
Bottle wall is thicker, inconvenient for use.
Summary of the invention
For overcome the deficiencies in the prior art, one of the objects of the present invention is to provide one kind to be used for blow molded bottle moulding process
In blow molded bottle preforming tool, can be avoided in blow molded bottle preform process and the case where uneven heating occur.
The second object of the present invention is to provide a kind of blow molded bottle moulding process, to reduce the production cost of blow molded bottle, together
When blow molded bottle being avoided to form, there is the problem of blowing quick-fried or became uneven in finished product bottle.
An object of the present invention adopts the following technical scheme that realization:
A kind of blow molded bottle preforming tool, including body, molding die be set to the body and can be along body height side
To the blow molding mechanism of movement, the molding die is arranged below the body, and is located at the blow molding mechanism lower section, it is described at
Pattern tool includes two pre-blowing templates, and the two pre-blowing templates can carry out moving close to each other or phase along the body width direction
Mutually separate, when the fitting of the two pre-blowing templates, the binding face of the two pre-blowing templates cooperatively forms preforming chamber, and described pre-
Blowing mould plate is suitable for heating the preforming chamber, and the preforming chamber includes adding for placing bottle embryo, the blow molding mechanism
Hot core bar, when the fitting of the two pre-blowing templates, the heating core bar suitable for along the body height direction towards the shaping mould
Tool direction moves through in bottle embryo bottleneck insertion bottle embryo, and to heat to bottle embryo, the heating core bar surface offers note
Port is suitable for when the heating core bar is inserted into bottle embryo, towards inflation in the bottle embryo so that bottle embryo extends to and preforming chamber
Wall fitting.
Further, it is in two hydraulic oil being correspondingly arranged that the molding die, which further includes respectively with the two pre-blowing templates,
Cylinder, two hydraulic cylinders are suitable for pushing the two pre-blowing templates close to each other or be located remotely from each other.
Further, the molding die further includes limit plate, and the limit plate is suitable for limiting the fortune of the pre-blowing template
Dynamic direction.
Further, the preforming chamber height is equal to bottle embryo height.
Further, the preforming chamber top offers opening, and it is described preforming to be suitable for the bottle embryo bottleneck protrusion
Chamber.
Further, the blow molding mechanism include the heating mantle being installed on the heating core bar and be installed on it is described plus
Cartridge heater on hot jacket, when the heating core bar is inserted into bottle base, the heating is placed on bottle base bottleneck, is suitable for bottle base bottle
Mouth heating, when the heating core bar is inserted into bottle embryo, the cartridge heater is abutted with bottle base bottleneck, is suitable for carrying out bottle embryo bottleneck
Heating.
Further, the blow molding mechanism includes the nylon head for being installed on the heating core bar top, when the heating core
When bar is inserted into bottle embryo, the nylon head is abutted with the bottle embryo bottom to hold out against bottle embryo.
The second object of the present invention adopts the following technical scheme that realization:
A kind of blow molded bottle moulding process, comprising: blow molded bottle preforming step；
Blow molded bottle preforming step includes: pre-blowing bottle embryo molding step, and two and half mouth molds on mold body are driven in mouth mold
Under the driving of dynamic device, bottle embryo is driven to be moved between two pre-blowing templates, the pre-blowing template-driven device driving on mold body
Two pre-blowing templates are close to each other and form preforming chamber, the blow molding driving device band to accommodate bottle embryo, when molding, on mold body
Cartridge heater in dynamic heating core bar, the heating mantle being mounted on heating core bar and installation heating mantle moves downward, so that heating
Core bar is inserted into bottle embryo by bottle embryo bottleneck, and is placed on heating in bottle embryo bottleneck, and cartridge heater is abutted with bottle embryo bottleneck；
Pre-blowing bottle embryo blowing steps, pre-blowing template heat bottle embryo in preforming chamber, and heating mantle and cartridge heater are to bottle embryo bottle
Mouth is heated, and heating core bar injects air in bottle embryo from heating core bar surface gas injection port is provided with, so that bottle embryo laterally expansion
Exhibition extremely is bonded to form pre-blowing bottle embryo with preforming chamber cavity wall；
Pre-blowing bottle embryo blow molding step: preforming intracavitary pre-blowing bottle embryo blow molding；
Pre-blowing bottle embryo first is opened step, and the heating mantle driving mechanism on mold body and the mouth mold on mold body are driven
Motivation structure drives heating core bar, heating mantle, two and half mouth molds of cartridge heater sum to move upwards simultaneously；Pre-blowing template on mold is driven
Dynamic device drives two pre-blowing templates to be located remotely from each other；Pre-blowing bottle embryo two and half mouth molds drive under move upwards and with two pre-blowings
Template is detached from；
Pre-blowing bottle embryo second is opened step, and the heating mantle driving mechanism on mold body drives heating core bar, heating mantle, adds
Hot cylinder is moved upwards with respect to mouth mold detaches pre-blowing bottle embryo.
Further, before the blow molded bottle preforming step further include: bottle embryo forming step；
Bottle embryo forming step includes: bottle embryo molding step, and the note core driving device on mold body drives note core to transport downwards
Dynamic, the body driving device on mold body drives two and half mouth molds to move downward and close to each other and be set in the upper of note core
End；Upper end outer wall of the two and half mouth mold inner walls in molding with note core cooperatively forms the first injection molding channel；It is infused in core when molding
It holds in the embryo body mould being connected on mold body and forms the second injection molding channel with the inner wall interval of embryo body mould；On mold body
Bed die driving device drives two embryo body bed dies close to each other and is set in the lower end of note core；The inner wall of two embryo body bed dies is closing
Lower end outer wall when mould with note core cooperatively forms third injection molding channel；The bottom face of two embryo body bed dies molding when and molding machine
The top end face of two hanging ring bed dies on body cooperatively forms hanging ring chamber；
Bottle embryo injection step, the adhesive pouring nozzle on mold body inject plastic cement to hanging ring chamber, third injection molding channel, the second injection molding
Runner and the first injection molding channel；
Bottle embryo pressure maintaining cooling step, in hanging ring chamber, third injection molding channel, the second injection molding channel and the first injection molding channel
Plastic cement pressure maintaining is cooled and shaped；
Bottle embryo first is opened step, the note core driving mechanism on mold body and the mouth mold driving mechanism on mold body
Note core and two and half mouth molds is driven to move upwards simultaneously；Embryo body die block driving mechanism on mold drives two embryo body bed dies mutual
It is separate and drive embryo body mould with note core and two and half mouth molds move upwards simultaneously；Bottle embryo is transported upwards under the drive of two and half mouth molds
It moves and is detached from two embryo body bed dies；
Bottle embryo second is opened step, the note core driving mechanism on mold body and the mouth mold driving mechanism on mold body
Note core and two and half mouth molds is driven to move upwards simultaneously, bottle embryo is moved upwards under the drive of two and half mouth molds and taken off with embryo body mould
From；
Bottle embryo third is opened step, and the note core driving mechanism on mold body drives note core to transport upwards with respect to two and half mouth molds
It is dynamic, detach bottle embryo.
Further, after the blow molded bottle preforming step further include: blow molded bottle forming step；
Blow molded bottle forming step includes: finished product bottle molding step, and two and half mouth molds on mold body drive in body to be filled
Under the driving set, bottle embryo is driven to be moved between twenty percent pattern, the shaping mould driving device on mold body drives twenty percent pattern
Close to each other and form forming cavity, to accommodate pre-blowing bottle embryo, when molding, the blow molding driving device on mold body drives cartridge heater
It is moved downward with the heating mantle for being mounted on cartridge heater top, so that heating mantle is inserted into bottle embryo by bottle embryo bottleneck, and makes to heat
Cylinder is abutted with preforming bottle embryo bottleneck；
Finished product bottle blowing steps, shaping mould heat bottle embryo preforming in forming cavity, and cartridge heater is to pre-blowing bottle embryo bottle
Mouth is heated, and heating mantle heats pre-blowing bottle embryo body, so that pre-blowing bottle embryo is generally in molten condition, blow molding driving
Device drives cartridge heater to move downward with the heating mantle for being mounted on cartridge heater top, until heating mantle top is abutted with forming cavity,
The heating core bar on heating mantle top injects air into pre-blowing bottle embryo, pastes so that pre-blowing bottle embryo is spread laterally to two forming die wall
It closes, forms finished product bottle；
Finished product bottle is cooled and shaped step: finished product bottle is cooled and shaped in forming cavity；
Finished product bottle first is opened step, the heating mantle driving mechanism on mold body and the mouth mold driving on mold body
Mechanism drives two and half mouth molds of cartridge heater, heating mantle sum to move upwards simultaneously；Shaping mould driving device driving two on mold
Shaping mould is located remotely from each other；Finished product bottle is moved upwards under the drive of two and half mouth molds and is detached from twenty percent pattern；
Finished product bottle second is opened step, and the heating mantle driving mechanism on mold body drives cartridge heater, heating mantle with respect to two
A half mouth mold, which moves upwards, detaches finished product bottle；
Finished product bottle third is opened step, and two and half mouth molds are located remotely from each other under the driving of mouth mold driving device, and finished product bottle is de-
From two and half mouth molds.
Compared with prior art, the beneficial effects of the present invention are:
By will heat core bar be inserted into bottle embryo in be internally heated to bottle embryo, and cooperate pre- blowing mould to outside bottle embryo into
Row heating, so that bottle embryo is heated evenly when heating, what bottle embryo occurred deforming because of uneven heating when can effectively avoid being blow molded is asked
Topic, reduction in the numbers of seconds；By pre-blowing bottle embryo forming step increased in blow molded bottle forming process, blow out in advance to bottle embryo
Type, so that bottle embryo, when carrying out last forming step, shape and finished form are close, and finished product bottle goes out when avoiding finally forming
The problems such as existing fold, breakage or uneven thickness；In addition, bottle embryo is by pre-blowing bottle embryo excessively to finished product bottle and the direct mistake of original bottle embryo
Finished product bottle to be spent to compare, change in size is smaller, and bottle embryo is blow molded compared with low thickness and forms finished product bottle, and
The problems such as being not in fold, breakage or uneven thickness, reduce production cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of blow molded bottle preforming tool of the invention；
Fig. 2 is the enlarged view in Fig. 1 at A；
Fig. 3 is the front view of blow molded bottle preforming tool of the invention.
In figure: 10, body；21, pre-blowing template；211, preforming chamber；2111, it is open；22, hydraulic cylinder；23, it limits
Plate；24, pre- blowing mould backboard；30, gas injection port；31, heating mantle；311, core bar is heated；312, nylon head；32, cartridge heater.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the present invention, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
A kind of blow molded bottle preforming tool as shown in Figs. 1-3, including body 10, molding die be set to body 10 and can
The blow molding mechanism moved along 10 short transverse of body, molding die are arranged below body 10, and are located at below blow molding mechanism, at
Pattern tool include two pre-blowing templates 21, and two pre-blowing templates 21 along 10 width direction of body can move it is close to each other or mutual
Separate, when the fitting of two pre-blowing templates 21, the binding face of two pre-blowing templates 21 cooperatively forms preforming chamber 211, and pre-blowing template
21 are suitable for heating preforming chamber 211, and preforming chamber 211 includes heating core bar 311 for placing bottle embryo, blow molding mechanism,
When the fitting of two pre-blowing templates 21, heating core bar 311 is suitable for moving through along 10 short transverse of body towards molding die direction
Bottle embryo bottleneck is inserted into bottle embryo, and to heat to bottle embryo, heating 311 surface of core bar offers gas injection port 30, is suitable for adding
When hot core bar 311 is inserted into bottle embryo, towards being inflated in bottle embryo so that bottle embryo is extended to is bonded with preforming 211 wall of chamber.
When on the basis of the said structure, using blow molded bottle preforming tool of the invention, heating core bar 311 be may be provided at into
Pattern has upper end, and when molding, two pre-blowing templates 21 are close to each other and form preforming chamber 211 for placing bottle embryo, meanwhile, add
Hot jacket 31 moves downward until heating mantle 31 is inserted into bottle embryo by bottle embryo bottleneck, and 31 outer rim of heating mantle will be supported with bottle embryo inner wall
It connects, so as to be isolated from the outside to form sealing inside bottle embryo, pre-blowing template 21 heats bottle embryo on the outside of bottle embryo, heats core bar
311 heat bottle embryo from bottle embryo inner wall so that bottle embryo heating and it is in a molten state, pass through the bottle embryo body inside and outside bottle embryo
It is heated, avoids bottle base uneven heating, at this point, air will enter from the gas injection port 30 on the surface that heating core bar 311 is arranged in
Bottle embryo inside is inflated in bottle embryo, bottle embryo will extend under the influence of air pressure, until be bonded with preforming 211 inner wall of chamber,
At this point, heating mantle 31 will stop heating bottle embryo, bottle embryo is cooled into pre-blowing bottle.Above-mentioned heating core bar 311 can by pipeline with
Pressurizing device connection.It is inserted into bottle embryo by the way that core bar 311 will be heated and is heated, bottle embryo is heated evenly when heating, can be effective
Avoid the problem that bottle embryo occurs deformation, reduction in the numbers of seconds because of uneven heating when blow molding；By being inlayed in 21 inner wall of pre-blowing template
Small-power filiform fever original part and temperature control original part carry out controllability heating, feed thermal loss caused by pre-blowing in time, simultaneously
Temperature intense adjustment is carried out, specifically, can be incuded heating wire and temperature control former by processing embedding groove at 21 back side of pre-blowing template
Part is placed wherein, and each heating wire is electrically connected with the power supply respectively, by heating heating wire, carries out controllability heating to mold, into
And make accurate temperature adjustment in time after bottle embryo pre-blowing.
When carrying out die sinking operation, two pre-blowing templates 21 are moved along 10 length direction of body and are located remotely from each other, so that pre-blowing bottle
It is separated with two pre-blowing templates 21, heating core bar 311 moves upwards and the pre-blowing bottle for lacking the constraint of pre-blowing template 21 is driven to transport upwards
It is dynamic, at this point, user can remove pre-blowing bottle from heating core bar 311.
It is in two hydraulic cylinders 22 being correspondingly arranged, two hydraulic cylinders 22 that molding die, which further includes respectively with two pre-blowing templates 21,
Suitable for pushing two pre-blowing templates 21 close to each other or being located remotely from each other, hydraulic cylinder 22 pushes two pre-blowing templates, 21 phase when to mold
It is mutually close, and preforming chamber 211 is formed, in addition, pre- blowing mould backboard 24 is additionally provided between pre-blowing template 21 and hydraulic cylinder 22,
It for pre-blowing template 21 to be connect with hydraulic cylinder 22, rather than is directly connect, is avoided with pre-blowing template 21 using hydraulic cylinder 22
Strength concentrates on the junction of hydraulic cylinder 22 Yu pre-blowing template 21 when molding, leads to the company of hydraulic cylinder 22 Yu pre-blowing template 21
The place of connecing deforms, and causes two pre-blowing templates 21 cannot be fully mated when molding.Furthermore hydraulic cylinder 22 can be used in the application
The linear movement mechanisms such as cylinder substitution.
Molding die further includes limit plate 23, and limit plate 23 is suitable for limiting the direction of motion of pre-blowing template 21, with hydraulic oil
When cylinder 22 pushes pre-blowing template 21 to mold, there are gaps between two pre-blowing templates, 21 binding face.
Preforming 211 height of chamber be equal to bottle embryo height so that blow molding when bottle embryo can only carry out it is extending transversely, to avoid bottle embryo
It carries out Longitudinal Extension and causes to deform.
Preforming 211 top of chamber offers opening 2111, is suitable for the prominent preforming chamber 211 of bottle embryo bottleneck, to heat
It is heated in 31 insertion bottle embryo of set, the diameter of this outward opening 2111 is greater than bottle embryo bottleneck diameter and straight less than finished product bottle bottleneck
Diameter, when to be blow molded, pre-blowing bottle bottleneck diameter can be close to finished product bottle bottleneck diameter, to carry out the molding blow molding of next step
When, avoid finished product bottle bottleneck when blow molding from deforming.
Specifically, blow molding mechanism includes the heating mantle 31 being installed on heating core bar 311 and is installed in heating mantle 31
Cartridge heater 32, when heat core bar 311 be inserted into bottle base when, heating mantle 31 is placed in bottle base bottleneck, be suitable for bottle base bottleneck heat,
When heating mantle 31 is inserted into bottle embryo, cartridge heater 32 is abutted with bottle base bottleneck, is suitable for heating bottle embryo bottleneck, in heating core
While bar 311 is internally heated bottle base, heating mantle 31 heats bottle base bottleneck with the cooperation of cartridge heater 32, so as to blow
Bottle base body homogeneous deformation synchronous with bottleneck when modeling, so that molding pre-blowing bottle surface is uniform, it is indeformable.
More specifically, blow molding mechanism includes the nylon head 312 for being installed on heating 311 top of core bar, when heating core bar 311 is inserted
When entering bottle embryo, nylon head 312 is abutted with bottle embryo bottom to hold out against bottle embryo.By the way that nylon head 312 is arranged on heating 311 top of core bar
It to hold out against bottle embryo in blow molding, shifts to avoid bottle base in blow-molding process, bottleneck and body is caused skew occur.
A kind of blow molded bottle moulding process, comprising: blow molded bottle preforming step；
Blow molded bottle preforming step includes: pre-blowing bottle embryo molding step, and two and half mouth molds on mold body 10 are in mouth mold
Under the driving of driving device, bottle embryo is driven to be moved between two pre-blowing templates 21, the pre-blowing template 21 on mold body 10 drives
Device drives two pre-blowing templates 21 close to each other and form preforming chamber 211, to accommodate bottle embryo, when molding, on mold body 10
Blow molding driving device drive heating core bar 311, be mounted on heating core bar 311 on heating mantle 31 and installation heating mantle 31 on
Cartridge heater 32 move downward so that heating core bar 311 is inserted into bottle embryo by bottle embryo bottleneck, and heating mantle 31 is made to be placed in bottle embryo
In bottleneck, cartridge heater 32 is abutted with bottle embryo bottleneck；
Pre-blowing bottle embryo blowing steps, pre-blowing template 21 heat bottle embryo in preforming chamber 211, heating mantle 31 and cartridge heater 32
Bottle embryo bottleneck is heated, air is injected bottle embryo from the gas injection port 30 for being provided with heating 311 surface of core bar by heating core bar 311
In, it is bonded to form pre-blowing bottle embryo with preforming 211 cavity wall of chamber so that bottle embryo is spread laterally to；
Pre-blowing bottle embryo blow molding step: pre-blowing bottle embryo blow molding in preforming chamber 211；
Pre-blowing bottle embryo first is opened step, in 31 driving mechanism of heating mantle and mold body 10 on mold body 10
Mouth mold driving mechanism drives heating core bar 311, heating mantle 31, two and half mouth molds of 32 sum of cartridge heater to move upwards simultaneously；Mold
On 21 driving device of pre-blowing template drive two pre-blowing templates 21 be located remotely from each other；Pre-blowing bottle embryo two and half mouth molds drive under
It moves upwards and is detached from two pre-blowing templates 21；
Pre-blowing bottle embryo second is opened step, and 31 driving mechanism of heating mantle on mold body 10 drives heating core bar 311, adds
Hot jacket 31, cartridge heater 32 are moved upwards with respect to mouth mold detaches pre-blowing bottle embryo.
The increased pre-blowing bottle embryo forming step in blow molded bottle forming process, to carry out pre- blow molding to bottle embryo, so that bottle
For embryo when carrying out last forming step, shape and finished form are close, when avoiding finally forming, are directly blow molded shape from bottle embryo
At finished product bottle, finished product bottle surface is led to problems such as fold, breakage or uneven thickness, defect rate occur because change in size is excessive
It is higher, and increase pre-blowing bottle embryo, so that bottle embryo is blow molded the pre-blowing bottle embryo to be formed with finished product bottle adjoining dimensions, in last molding,
Pre-blowing bottle embryo is blow molded into finished product bottle, and change in size is smaller, can be avoided finished product bottle surface and fold, breakage or thickness occurs not
The problems such as equal, and can reduce, increase bottle embryo thickness way in addition, generalling use in prior art, to reduce finished product bottle surface
There is the probability of occurrence of the problems such as fold, breakage or uneven thickness, but higher using its production cost of aforesaid way, and is blowing
Increased pre-blowing bottle embryo forming step in plastic bottle forming process, bottle embryo are excessively direct to finished product bottle and original bottle embryo by pre-blowing bottle embryo
Excessively to be compared to finished product bottle, change in size is smaller, and bottle embryo is blow molded compared with low thickness and forms finished product bottle,
And the problems such as being not in fold, breakage or uneven thickness, reduce production cost.
Further, before blow molded bottle preforming step further include: bottle embryo forming step；
Bottle embryo forming step includes: bottle embryo molding step, and the note core driving device on mold body 10 drives note core downward
Movement, 10 driving device of body on mold body 10 drive two and half mouth molds to move downward and close to each other and be set in note core
Upper end；Upper end outer wall of the two and half mouth mold inner walls in molding with note core cooperatively forms the first injection molding channel；Core is infused when molding
Middle-end be connected to the embryo body mould on mold body 10 Nei and with the inner wall interval of embryo body mould formed the second injection molding channel；Molding machine
Bed die driving device on body 10 drives two embryo body bed dies close to each other and is set in the lower end of note core；Two embryo body bed dies
Lower end outer wall of the inner wall in molding with note core cooperatively forms third injection molding channel；The bottom face of two embryo body bed dies is in molding
Hanging ring chamber is cooperatively formed with the top end face of two hanging ring bed dies on mold body 10；
Bottle embryo injection step, the adhesive pouring nozzle on mold body 10 inject plastic cement to hanging ring chamber, third injection molding channel, the second note
Creeping road and the first injection molding channel；
Bottle embryo pressure maintaining cooling step, in hanging ring chamber, third injection molding channel, the second injection molding channel and the first injection molding channel
Plastic cement pressure maintaining is cooled and shaped；
Bottle embryo first is opened step, the note core driving mechanism on mold body 10 and the mouth mold driving on mold body 10
Mechanism drives note core and two and half mouth molds to move upwards simultaneously；Embryo body die block driving mechanism on mold drives two embryo body bed dies
It is located remotely from each other and embryo body mould is driven to move upwards simultaneously with note core and two and half mouth molds；Bottle embryo under the drive of two and half mouth molds to
Upper movement is simultaneously detached from two embryo body bed dies；
Bottle embryo second is opened step, the note core driving mechanism on mold body 10 and the mouth mold driving on mold body 10
Mechanism drive simultaneously note core and two and half mouth molds move upwards, bottle embryo moved upwards under the drive of two and half mouth molds and with embryo body
Mould is detached from；
Bottle embryo third is opened step, and the note core driving mechanism on mold body 10 drives note core upward with respect to two and half mouth molds
Movement, detaches bottle embryo.
In above process, in die sinking, it can first make to infuse core, two and half mouth molds and embryo body mould while move upwards,
It drives bottle embryo to be first detached from embryo body bed die, i.e., hanging ring and mold body 10 is first made to be detached from (decylization), the stage bottle embryo and embryo body mould,
Half mouth mold and note core are without departing from bottle embryo has the cooling time of first stage.Hereafter, then keep note core, two and half mouth molds opposite
Embryo body mould moves upwards, and the cavity of bottle embryo and embryo body mould is detached from (de- chamber), the stage bottle embryo and half mouth mold and note core without departing from,
Bottle embryo has the cooling time of first stage.Finally note core, which moves upwards, detaches bottle embryo (depoling), such bottle embryo and mould separating
There can be certain cooling time in the process, so that note core is detached bottle embryo again can avoid directly extracting note core destruction bottle embryo out
It happens.
In addition, note core, two and half mouth molds, embryo body mould move upwards 20mm together in the first die sinking step；Second die sinking step
Note core and two and half mouth molds move upwards 50mm~100mm together in rapid.Moving above-mentioned distance can be such that bottle embryo has more fully
The time is cooled and solidified, note core is avoided to stick bottle embryo inner cavity；Note core moves upwards 200mm in third die sinking step, this section of distance can
Completely disengage note core with bottle embryo；In second die sinking step, temperature when note core detaches bottle embryo is controlled between 105 °~115 °,
At such a temperature, note core can be preferably detached from bottle embryo.
Further, after blow molded bottle preforming step further include: blow molded bottle forming step；
Blow molded bottle forming step includes: finished product bottle molding step, and two and half mouth molds on mold body 10 are driven in body 10
Under the driving of dynamic device, bottle embryo is driven to be moved between twenty percent pattern, the shaping mould driving device driving two on mold body 10
Shaping mould is close to each other and forms forming cavity, the blow molding driving device band to accommodate pre-blowing bottle embryo, when molding, on mold body 10
Dynamic cartridge heater 32 is moved downward with the heating mantle 31 for being mounted on 32 top of cartridge heater, so that heating mantle 31 is inserted by bottle embryo bottleneck
In bottle embryo, and abut cartridge heater 32 with pre-blowing bottle embryo bottleneck；
Finished product bottle blowing steps, shaping mould heat pre-blowing bottle embryo in forming cavity, cartridge heater 32 to pre-blowing bottle embryo bottleneck into
Row heating, heating mantle 31 heat pre-blowing bottle embryo body, so that pre-blowing bottle embryo is generally in molten condition, blow molding driving dress
It sets and cartridge heater 32 is driven to move downward with the heating mantle 31 for being mounted on 32 top of cartridge heater, until 31 top of heating mantle and forming cavity
It abuts, the heating core bar 311 on 31 top of heating mantle injects air into pre-blowing bottle embryo, so that pre-blowing bottle embryo is spread laterally to and two
Die wall fitting is formed, finished product bottle is formed；
Finished product bottle is cooled and shaped step: finished product bottle is cooled and shaped in forming cavity；
Finished product bottle first is opened step, 31 driving mechanism of heating mantle on mold body 10 and the mouth on mold body 10
Mould driving mechanism drives two and half mouth molds of cartridge heater 32,31 sum of heating mantle to move upwards simultaneously；Shaping mould driving on mold
Device driving twenty percent pattern is located remotely from each other；Finished product bottle is moved upwards under the drive of two and half mouth molds and is detached from twenty percent pattern；
Finished product bottle second is opened step, and 31 driving mechanism of heating mantle on mold body 10 drives cartridge heater 32, heating mantle
31 opposite two and half mouth molds, which move upwards, detaches finished product bottle；In second die sinking step, heating mantle 31 detaches temperature control when bottle embryo
System is between 105 °~115 °, and at such a temperature, heating mantle 31 can be preferably detached from bottle embryo, and heating mantle 31 tapered can be set
It sets, to facilitate heating mantle 31 to separate in finished product bottle.
Finished product bottle third is opened step, and two and half mouth molds are located remotely from each other under the driving of mouth mold driving device, and finished product bottle is de-
From two and half mouth molds.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (10)
1. a kind of blow molded bottle preforming tool, it is characterised in that: including body, molding die and be set to the body and can be along machine
The blow molding mechanism of body short transverse movement, the molding die are arranged below the body, and are located under the blow molding mechanism
Side, the molding die includes two pre-blowing templates, and the two pre-blowing templates can carry out moving phase along the body width direction
Mutually close or be located remotely from each other, when the fitting of the two pre-blowing templates, the binding face of the two pre-blowing templates cooperatively forms preforming
Chamber, and the pre-blowing template is suitable for heating the preforming chamber, the preforming chamber is for placing bottle embryo, the blow molding
Mechanism includes heating core bar, and when the fitting of the two pre-blowing templates, the heating core bar is suitable for along the body height direction court
The molding die direction moves through in bottle embryo bottleneck insertion bottle embryo, to be heated to bottle embryo, the heating core bar table
Face offers gas injection port, is suitable for when the heating core bar is inserted into bottle embryo, towards inflation in the bottle embryo so that bottle embryo extends to
It is bonded with preforming cavity wall.
2. blow molded bottle preforming tool as described in claim 1, it is characterised in that: the molding die further includes respectively with two
The pre-blowing template is in two hydraulic cylinders being correspondingly arranged, and two hydraulic cylinders are suitable for that the two pre-blowing templates is pushed mutually to lean on
Closely or it is located remotely from each other.
3. blow molded bottle preforming tool as described in claim 1, it is characterised in that: the molding die further includes limit plate,
The limit plate is suitable for limiting the direction of motion of the pre-blowing template.
4. blow molded bottle preforming tool as described in claim 1, it is characterised in that: it is high that the preforming chamber height is equal to bottle embryo
Degree.
5. blow molded bottle preforming tool as described in claim 1, it is characterised in that: the preforming chamber top offers out
Mouthful, it is suitable for the prominent preforming chamber of the bottle embryo bottleneck.
6. blow molded bottle preforming tool as described in claim 1, it is characterised in that: the blow molding mechanism is described including being installed on
The cartridge heater for heating the heating mantle on core bar and being installed in the heating mantle, when the heating core bar is inserted into bottle base, institute
It states heating and is placed on bottle base bottleneck, be suitable for heating bottle base bottleneck, when the heating core bar is inserted into bottle embryo, the cartridge heater
It is abutted with bottle base bottleneck, is suitable for heating bottle embryo bottleneck.
7. blow molded bottle preforming tool as claimed in claim 6, it is characterised in that: the blow molding mechanism is described including being installed on
Heat core bar top nylon head, when the heating core bar insertion bottle embryo when, the nylon head abutted with the bottle embryo bottom with
Hold out against bottle embryo.
8. a kind of blow molded bottle moulding process, characterized by comprising: blow molded bottle preforming step；
Blow molded bottle preforming step includes: pre-blowing bottle embryo molding step, and two and half mouth molds on mold body drive in mouth mold to be filled
Under the driving set, bottle embryo is driven to be moved between two pre-blowing templates, the pre-blowing template-driven device driving two on mold body is pre-
Blowing mould plate is close to each other and forms preforming chamber, to accommodate bottle embryo, when molding, the blow molding driving device on mold body drive plus
Cartridge heater in hot core bar, the heating mantle being mounted on heating core bar and installation heating mantle moves downward, so that heating core bar
It is inserted into bottle embryo by bottle embryo bottleneck, and is placed on heating in bottle embryo bottleneck, cartridge heater is abutted with bottle embryo bottleneck；
Pre-blowing bottle embryo blowing steps, pre-blowing template heat bottle embryo in preforming chamber, heating mantle and cartridge heater to bottle embryo bottleneck into
Row heating, heating core bar injects air in bottle embryo from heating core bar surface gas injection port is provided with, so that bottle embryo is spread laterally to
It is bonded to form pre-blowing bottle embryo with preforming chamber cavity wall；
Pre-blowing bottle embryo blow molding step: preforming intracavitary pre-blowing bottle embryo blow molding；
Pre-blowing bottle embryo first is opened step, the heating mantle driving mechanism on mold body and the mouth mold driving machine on mold body
Structure drives heating core bar, heating mantle, two and half mouth molds of cartridge heater sum to move upwards simultaneously；Pre-blowing template-driven dress on mold
Two pre-blowing templates of driving are set to be located remotely from each other；Pre-blowing bottle embryo two and half mouth molds drive under move upwards and with two pre-blowing templates
It is detached from；
Pre-blowing bottle embryo second is opened step, and the heating mantle driving mechanism on mold body drives heating core bar, heating mantle, cartridge heater
Opposite mouth mold, which moves upwards, detaches pre-blowing bottle embryo.
9. a kind of blow molded bottle moulding process as claimed in claim 8, it is characterised in that before the blow molded bottle preforming step
Further include: bottle embryo forming step；
Bottle embryo forming step includes: bottle embryo molding step, and the note core driving device on mold body drives note core to move downward, mould
Two and half mouth molds of body driving device drive on tool body move downward and upper end that is close to each other and being set in note core；Two
Upper end outer wall of the half mouth mold inner wall in molding with note core cooperatively forms the first injection molding channel；The middle-end that core is infused when molding is connected to
The second injection molding channel is formed in embryo body mould on mold body and with the inner wall interval of embryo body mould；Bed die driving on mold body
Device drives two embryo body bed dies close to each other and is set in the lower end of note core；The inner wall of two embryo body bed dies is in molding and infuses
The lower end outer wall of core cooperatively forms third injection molding channel；The bottom face of two embryo body bed dies molding when with mold body on two
The top end face of a hanging ring bed die cooperatively forms hanging ring chamber；
Bottle embryo injection step, the adhesive pouring nozzle on mold body inject plastic cement to hanging ring chamber, third injection molding channel, the second injection molding channel
And first injection molding channel；
Bottle embryo pressure maintaining cooling step, the plastic cement in hanging ring chamber, third injection molding channel, the second injection molding channel and the first injection molding channel
Pressure maintaining is cooled and shaped；
Bottle embryo first is opened step, and the note core driving mechanism on mold body and the mouth mold driving mechanism on mold body are simultaneously
Note core and two and half mouth molds is driven to move upwards；Embryo body die block driving mechanism on mold drives two embryo body bed dies to be located remotely from each other
And embryo body mould is driven to move upwards simultaneously with note core and two and half mouth molds；Bottle embryo moves upwards simultaneously under the drive of two and half mouth molds
It is detached from two embryo body bed dies；
Bottle embryo second is opened step, and the note core driving mechanism on mold body and the mouth mold driving mechanism on mold body are simultaneously
Note core and two and half mouth molds is driven to move upwards, bottle embryo is moved upwards under the drive of two and half mouth molds and is detached from embryo body mould；
Bottle embryo third is opened step, and the note core driving mechanism on mold body drives note core to move upwards with respect to two and half mouth molds,
Detach bottle embryo.
10. a kind of blow molded bottle moulding process as claimed in claim 8, it is characterised in that after the blow molded bottle preforming step
Further include: blow molded bottle forming step；
Blow molded bottle forming step includes: finished product bottle molding step, and two and half mouth molds on mold body are in body driving device
Under driving, bottle embryo is driven to be moved between twenty percent pattern, the shaping mould driving device driving twenty percent pattern on mold body is mutual
Close and form forming cavity, to accommodate pre-blowing bottle embryo, when molding, the blow molding driving device on mold body drives cartridge heater and peace
Heating mantle mounted in cartridge heater top moves downward, so that heating mantle is inserted into pre-blowing bottle bottle embryo by bottle embryo bottleneck, and makes to add
Hot cylinder is abutted with bottle embryo bottleneck；
Finished product bottle blowing steps, shaping mould heat pre-blowing bottle in forming cavity, and cartridge heater adds pre-blowing bottle embryo bottleneck
Heat, heating mantle heat pre-blowing bottle embryo body, so that pre-blowing bottle embryo is blow molded driving device and drives generally in molten condition
Cartridge heater is moved downward with the heating mantle for being mounted on cartridge heater top, until heating mantle top is abutted with forming cavity,
The heating core bar on heating mantle top injects air into pre-blowing bottle embryo, so that pre-blowing bottle embryo is spread laterally to and twenty percent pattern
Wall fitting, forms finished product bottle；
Finished product bottle is cooled and shaped step: finished product bottle is cooled and shaped in forming cavity；
Finished product bottle first is opened step, the heating mantle driving mechanism on mold body and the mouth mold driving mechanism on mold body
Two and half mouth molds of cartridge heater, heating mantle sum are driven to move upwards simultaneously；Shaping mould driving device driving on mold is two forming
Mould is located remotely from each other；Finished product bottle is moved upwards under the drive of two and half mouth molds and is detached from twenty percent pattern；
Finished product bottle second is opened step, and the heating mantle driving mechanism on mold body drives cartridge heater, heating mantle with respect to two and half
Mouth mold, which moves upwards, detaches finished product bottle；
Finished product bottle third is opened step, and two and half mouth molds are located remotely from each other under the driving of mouth mold driving device, and finished product bottle is detached from two
A half mouth mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811189389.3A CN109366941A (en) | 2018-10-12 | 2018-10-12 | A kind of blow molded bottle preforming tool and blow molded bottle moulding process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811189389.3A CN109366941A (en) | 2018-10-12 | 2018-10-12 | A kind of blow molded bottle preforming tool and blow molded bottle moulding process |
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| Publication Number | Publication Date |
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| CN109366941A true CN109366941A (en) | 2019-02-22 |
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ID=65397571
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811189389.3A Pending CN109366941A (en) | 2018-10-12 | 2018-10-12 | A kind of blow molded bottle preforming tool and blow molded bottle moulding process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113997544A (en) * | 2021-10-18 | 2022-02-01 | 佛山市工正包装设备科技股份有限公司 | Forming method of PP small-caliber infusion bottle and infusion bottle |
-
2018
- 2018-10-12 CN CN201811189389.3A patent/CN109366941A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113997544A (en) * | 2021-10-18 | 2022-02-01 | 佛山市工正包装设备科技股份有限公司 | Forming method of PP small-caliber infusion bottle and infusion bottle |
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