CN222921041U

CN222921041U - Plastic container forming device

Info

Publication number: CN222921041U
Application number: CN202220452467.XU
Authority: CN
Inventors: 陈艺力; 高寿; 关红民
Original assignee: Foshan Gongzheng Packaging Equipment Technology Co ltd
Current assignee: Foshan Gongzheng Packaging Equipment Technology Co ltd
Priority date: 2021-07-02
Filing date: 2022-03-02
Publication date: 2025-05-30
Anticipated expiration: 2032-03-02
Also published as: CN114347430A; CN113370500A

Abstract

The utility model discloses a plastic container forming device, which comprises a machine body, a mouth mold, an injection molding device, a preforming device and a forming device, wherein the machine body is provided with an injection molding station, a preforming station and a forming station, the mouth mold is arranged on the machine body and can sequentially move to the injection molding station, the preforming station and the forming station, the injection molding device is arranged at the injection molding station and is used for being matched with the mouth mold to perform injection molding on bottle blanks with bottle mouths facing downwards at the top end of the mouth mold, the preforming device is arranged at the preforming station and is used for being matched with the mouth mold to perform pre-blow molding on bottle blanks with bottle mouths facing downwards at the top end of the mouth mold, and the forming device is arranged at the forming station and is used for being matched with the mouth mold to perform air-blow molding on bottle blanks with bottle mouths facing downwards at the top end of the mouth mold to form bottle bodies. When the bottle blank is subjected to injection molding, preforming and forming, the formed bottle mouth faces downwards, so that foreign matters are prevented from falling into the bottle blank and the bottle body in the forming process.

Description

Plastic container forming device

Technical Field

The utility model relates to plastic container forming equipment, in particular to a plastic container forming device.

Background

At present, three working procedures are generally needed when a plastic container, such as a beverage bottle, a hanging bottle and other liquid plastic bottles, is produced, namely, a first working procedure, a cavity injection mould is matched with a mouth mould to perform injection molding to form a bottle blank, a second working procedure, the cavity injection mould is separated from the mouth mould, the bottle blank is hung at the bottom end of the mouth mould, the mouth mould drives the bottle blank to move to a next station, the bottle blank is subjected to preliminary blowing by matching with a pre-blowing core so as to stretch the bottle blank for preliminary molding, and a third working procedure, the blowing core is separated from the mouth mould, the mouth mould drives the preliminarily molded bottle blank to move to the next station, and the preliminarily molded bottle blank is blown by matching with a blowing core to be finally molded into a bottle body.

However, in the existing blow molding process, a part of the mold and equipment for injection molding, pre-blowing and molding is positioned above a neck mold for molding bottle blanks, and in the operation process of each station, the formed container structure is always opened upwards, and because the mold can vibrate in the mold closing and opening processes, foreign matters easily fall into the bottle blanks and the bottle bodies in the molding process, in addition, in the prior art, the bottle bodies need to be inverted and then transferred to a cleaning station for blowing and cleaning, and the cleaning efficiency is low.

Disclosure of utility model

In order to overcome the defects of the prior art, the utility model aims to provide a plastic container forming device, wherein when a bottle blank is subjected to injection molding, preforming and forming, a formed bottle opening faces downwards, so that foreign matters are prevented from falling into the bottle blank and the bottle body in the forming process.

The utility model adopts the following technical scheme:

A plastic container forming device comprises a plastic container forming device,

The machine body is provided with an injection molding station, a preforming station and a forming station;

the die is arranged on the machine body and can sequentially move to the injection molding station, the preforming station and the forming station;

The injection molding device is arranged at the injection molding station and is used for being matched with the mouth mold so as to perform injection molding on the bottle blank with the bottle mouth facing downwards at the top end of the mouth mold;

The preforming device is arranged at the preforming station and is used for being matched with the mouth die to perform pre-blow forming on bottle blanks with downward bottle mouths formed by injection molding at the top ends of the mouth die;

And the forming device is arranged at the forming station and is used for being matched with the mouth die so as to blow-form the bottle body by blowing the bottle blank with the bottle mouth facing downwards and pre-blow-formed at the top end of the mouth die.

The injection molding device comprises a machine body, a die cavity, a die core and a die core, wherein the die cavity is arranged at the top end of the machine body and is located above the die cavity, a die cavity is arranged at the bottom end of the die cavity, the die cavity can move along the height direction of the machine body and is close to or far away from the die cavity, the die cavity is used for being connected into the die cavity in a penetrating mode after moving close to the die cavity, the die core is arranged on the machine body and is located below the die cavity, the die core can move along the height direction of the machine body and is close to or far away from the die cavity, and the die core is used for being connected to the die cavity in a penetrating mode after moving close to the die cavity and extending into the die cavity.

The preforming device further comprises a pre-blowing mold and a pre-blowing core, wherein the pre-blowing mold is arranged at the top end of the machine body and is located above the mouth mold, a pre-blowing cavity is formed in the bottom end of the pre-blowing mold, the mouth mold can be close to or far away from the pre-blowing mold along the height direction of the machine body, the mouth mold is used for extending into the pre-blowing cavity after moving close to the pre-blowing mold, the pre-blowing core is arranged on the machine body and located below the mouth mold, the pre-blowing core can move close to or far away from the mouth mold, the pre-blowing core is used for extending out of the mouth mold after moving close to the mouth mold and penetrating into the pre-blowing cavity, and the pre-blowing core is used for blowing after penetrating into the pre-blowing cavity.

The forming device comprises a machine body, a forming cavity, a first blowing core, a stretching rod, a first blowing core and a first blowing core, wherein the blowing mold is arranged at the top end of the machine body and is located above the mouth mold, the bottom end of the blowing mold is provided with the forming cavity, the mouth mold can be close to or far away from the blowing mold along the height direction of the machine body, the mouth mold is used for stretching into the forming cavity after being close to the blowing mold, the first blowing core is mounted on the machine body and located below the mouth mold, the first blowing core can be close to or far away from the mouth mold, the first blowing core is used for stretching out of the mouth mold and penetrating into the forming cavity after penetrating into the forming cavity, and the stretching rod is used for stretching a bottle blank after the first blowing core penetrates into the forming cavity.

Further, be equipped with tensile movable plate and tensile movable plate driving piece on the organism, tensile movable plate locates the below of first air core that blows, tensile pole is installed on tensile movable plate, tensile movable plate driving piece is used for driving tensile movable plate and moves along the direction of height of organism.

Further, a cleaning bottle-taking station and an air blowing cleaning device are arranged on the machine body, and the air blowing cleaning device is arranged at the cleaning bottle-taking station and is used for being matched with the mouth die so as to blow and clean the bottle body with the downward blowing molding bottle mouth at the top end of the mouth die.

The blowing cleaning device comprises a machine body, a first blowing core, a second blowing core and a blowing device, wherein the first blowing core is arranged on the machine body and is positioned below a mouth die, the first blowing core can move along the height direction of the machine body and is close to or far away from the mouth die, the first blowing core is used for penetrating out of the mouth die and penetrating into the bottle body after moving close to the mouth die, and the first blowing core is used for introducing gas into the bottle body to blow and clean the bottle body.

The blowing cleaning device further comprises a mouth mold opening and closing assembly, wherein the mouth mold opening and closing assembly is arranged on the machine body and can move along the height direction of the machine body to be close to or far away from the mouth mold;

The die opening and closing assembly comprises a die plate, a die release insert and a die plate driving piece, wherein a positioning socket is formed in the die plate, the die release insert is mounted on a die plate moving plate of the die plate, and the die plate driving piece is used for driving the die plate to move along the height direction of a machine body so that the die release insert is inserted into the positioning socket.

Further, a rotary table is arranged on the machine body and pivoted on the machine body, a plurality of dies are arranged on the rotary table, and the injection molding device, the preforming device and the forming device are sequentially distributed at intervals in the rotation direction of the rotary table.

Further, the machine body is provided with a turntable frame and a turntable frame driving piece, the turntable frame is arranged on the machine body and can move along the height direction of the machine body, the turntable frame driving piece is used for driving the turntable frame to move, and the turntable is pivoted on the turntable frame.

Compared with the prior art, the utility model has the beneficial effects that the mouth die can move to the injection molding station during molding, the mouth die can be matched with an injection molding device to preliminarily mold the bottle embryo, and the molded bottle embryo is positioned at the top end of the mouth die. Thereafter, the neck mold drives the preform to move to a preform station and then cooperates with a preform apparatus to perform a preform. Then, the neck ring drives the preformed bottle embryo motion to the shaping station, and neck ring and forming device cooperation blow forming form the bottle, and above-mentioned in-process, neck ring all are located the bottom, and fashioned bottle bottleneck is down promptly, so, can prevent neck ring transfer in-process, and the foreign matter from top to bottom drops in the product.

In addition, the bottle body with the formed bottle mouth facing downwards can be driven by the mouth die to directly move to the cleaning bottle taking station and is matched with the blowing cleaning device to directly perform blowing cleaning.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of an injection molding apparatus according to the present utility model;

FIG. 3 is a schematic view of the structure of the preforming device of the present utility model;

FIG. 4 is a schematic structural view of an air blowing cleaning apparatus of the present utility model;

fig. 5 is a schematic structural view of the air blowing cleaning apparatus of the present utility model.

10, Machine body, 11, turntable frame, 12, turntable, 121, positioning socket, 13, turntable frame driving piece, 20, neck mold, 31, cavity mold, 311, cavity mold, 32, core mold, 33, core mold driving piece, 41, pre-blow mold, 42, pre-blow cavity, 43, pre-blow core, 44, stretching rod, 45, pre-blow core plate, 451, pre-blow core plate driving piece, 46, stretching moving plate, 461, stretching moving plate driving piece, 51, forming cavity, 52, first blow core plate, 53, first blow core plate, 54, first blow core plate driving piece, 61, second blow core plate, 62, second blow core plate, 63, demolding insert, 64, demolding plate, 65, demolding plate driving piece, 66, second blow core plate driving piece.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and detailed description of embodiments, wherein it is to be understood that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below. Materials and equipment used in this example are commercially available, except as specifically noted. Examples of such embodiments are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. In the description of the present application, the meaning of "a plurality" is two or more, unless specifically stated otherwise.

In the description of the present application, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be fixedly connected, or may be connected through an intermediary, or may be connected between two elements or may be an interaction relationship between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

The terms first, second and the like in the description and in the claims and in the above-described figures, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The plastic container forming device shown in fig. 1-5 comprises a machine body 10, a die 20, an injection molding device, a preforming device, a forming device and an air blowing cleaning device, wherein the machine body 10 is provided with an injection molding station, a preforming station, a forming station and a cleaning bottle taking station. The die 20 is mounted on the machine body 10 and can sequentially move to an injection molding station, a preforming station, a forming station and a cleaning bottle-taking station.

The injection molding device is arranged at the injection molding station and is used for being matched with the mouth die 20 to perform injection molding on the bottle blank at the top end of the mouth die 20, and the preforming device is arranged at the preforming station and is used for being matched with the mouth die 20 to perform pre-blowing molding on the bottle blank injection molded at the top end of the mouth die 20.

In addition, the forming device is arranged at the forming station and is used for being matched with the mouth die 20 to perform blow forming on a bottle blank pre-blow formed at the top end of the mouth die 20 to form a bottle body, and the blow cleaning device is arranged at the clean bottle taking station and is used for being matched with the mouth die 20 to perform blow cleaning on the bottle body pre-blow formed at the top end of the mouth die 20. Specifically, the molding station is a blow molding station, and the molding device is a blow molding device.

On the basis of the structure, when the plastic container forming device is used, the mouth die 20 can move to the injection station during forming, the mouth die 20 can be matched with the injection device to initially form bottle blanks, and the formed bottle blanks are positioned at the top end of the mouth die 20. Thereafter, the die 20 moves the preform to a preform station and then cooperates with a preform apparatus to perform a preform. Then, the neck ring 20 drives the bottle embryo of preblowing shaping to the shaping station, and neck ring 20 cooperates with forming device, and blow forming forms the bottle, and in the above-mentioned in-process, neck ring 20 all is located the bottom, and the bottle bottleneck of shaping promptly is down, so, can prevent neck ring 20 transfer in-process, and the foreign matter from top to bottom drops in the product.

In addition, the bottle body with the formed bottle mouth facing downwards can be driven by the mouth die 20 to directly move to a cleaning bottle taking station, and is matched with an air blowing cleaning device to directly perform air blowing cleaning.

Further, the injection molding device comprises a cavity injection mold 31 and a core injection 32, wherein the cavity injection mold 31 is arranged at the top end of the machine body 10 and above the die 20, and the bottom end of the cavity injection mold 31 is provided with a cavity injection 311. The die 20 may move toward or away from the cavity mold 31 in the height direction of the machine body 10, and the die 20 may be inserted into the cavity 311 after moving toward the cavity mold 31. In addition, the core 32 is disposed on the machine body 10 and below the die 20, the core 32 can move along the height direction of the machine body 10 near to or away from the die 20, and the core 32 can be connected to the die 20 and extend into the injection cavity 311 after moving near to the die 20.

On the basis of the structure, when in injection molding, the neck mold 20 can move upwards and extend into the injection cavity 311 of the injection cavity mold 31, the injection core 32 can move close to the neck mold 20, the injection core 32 can pass through the neck mold 20 and extend into the injection cavity 311 after moving close to the neck mold 20, after that, injection molding is carried out in the injection cavity 311 through an injection molding channel on the injection cavity mold 31, the neck mold 20 structure can form a bottle embryo opening at the end part of the injection cavity 311, a certain cavity structure can be formed in the bottle embryo when the injection core 32 is in the neck mold 20, the neck mold 20 and the injection core 32 are withdrawn from the injection cavity 311, and the injection core 32 is withdrawn from the neck mold 20, so that the bottle embryo structure with a cavity and a bottle opening can be preliminarily molded.

Further, the preforming device includes a pre-blowing mold 41 and a pre-blowing core 43, the pre-blowing mold 41 is disposed at the top end of the machine body 10 and above the die 20, and a pre-blowing cavity 42 is disposed at the bottom end of the pre-blowing mold 41, and similarly, the die 20 can move close to or away from the pre-blowing mold 41 along the height direction of the machine body 10, and the die 20 stretches into the pre-blowing cavity 42 after moving close to the pre-blowing mold 41. In addition, the pre-blowing core 43 is mounted on the machine body 10 and located below the die 20, and the pre-blowing core 43 can move close to or away from the die 20, and the pre-blowing core 43 extends out from the die 20 and penetrates into the pre-blowing cavity 42 after moving close to the die 20. The pre-blow core 43 may blow after being threaded into the pre-blow cavity 42.

On the basis of the structure, when in pre-blowing molding, a bottle blank molded above the die 20 at an injection molding station can move to a pre-molding station, when moving to the pre-molding station, the die 20 can move upwards to be close to the pre-blowing die 41, so that the pre-blowing die 41 is clamped from the upper part of the die 20, the bottle blank on the die 20 can extend into the pre-blowing cavity 42, the pre-blowing core 43 penetrates into the pre-blowing cavity 42 from the lower part of the die 20, the pre-blowing core 43 blows to pre-blow the bottle blank, and the same blow opening of the bottle blank faces downwards, thereby preventing foreign matters from falling into the bottle blank, and in the pre-blowing process, the foreign matters in the bottle blank can be cleaned, and the cleaning degree of the bottle blank after molding is better.

Further, the molding device includes a blow mold and a first blow core 52, the blow mold is disposed at the top end of the machine body 10 and above the die 20, a molding cavity 51 is disposed at the bottom end of the blow mold, the die 20 can move closer to or further away from the blow mold along the height direction of the machine body 10, and the die 20 stretches into the molding cavity 51 after moving closer to the blow mold.

The first air-blowing core 52 is installed on the machine body 10 and is positioned below the die 20, the first air-blowing core 52 can move close to or far away from the die 20, the first air-blowing core 52 extends out from the die 20 and penetrates into the forming cavity 51 after moving close to the die 20, the first air-blowing core 52 is used for blowing air after penetrating into the forming cavity 51, the stretching rod 44 penetrates into the first air-blowing core 52, and the stretching rod 44 is used for stretching bottle blanks after the first air-blowing core 52 penetrates into the forming cavity 51.

In a specific molding process, a preform in a preforming station can be moved to a molding station, then the mouth mold 20 drives the preform to move upwards, drives the preform to extend into a molding cavity 51 of the blow mold, and the first blow core 52 can extend out of the mouth mold 20 and penetrate into the molding cavity 51 after moving close to the mouth mold 20. The first blowing core 52 blows after being connected to the molding cavity 51. A stretching rod 44 may also be connected to the first air core 52 in a penetrating manner, and the stretching rod 44 may stretch the bottle preform in the first air core 52 connected to the forming cavity 51 in a penetrating manner.

On the basis of the structure, when the plastic container forming device is used, the bottle blank pre-blown at the last station can be positioned above the mouth mold 20, and the mouth mold 20 can be connected with the bottom end of the bottle blank in a penetrating way, so that the bottle mouth structure formed by the mouth mold 20 can be arranged at the bottom end of the bottle body.

Specifically, the machine body 10 may further be provided with a stretching moving plate 46 and a stretching moving plate driving member 461, wherein the stretching moving plate 46 is disposed below the first air blowing core 52, and the stretching rod 44 is mounted on the stretching moving plate 46, and the stretching moving plate driving member 461 can drive the stretching moving plate 46 to move along the height direction of the machine body 10.

Thus, the stretching moving plate 46 can move close to or far away from the first air blowing core 52 under the driving of the stretching moving plate driving member 461, so that the stretching rod 44 on the stretching moving plate 46 can move up and down relative to the first air blowing core 52, the length of the stretching rod 44 extending out of the first air blowing core 52 can be adjusted, that is, the length of the stretching rod 44 extending into the bottle blank can be adjusted, the bottle blanks of different types can be shaped conveniently, and the extending-in length of the stretching rod 44 can be adjusted according to the bottle body size of the final bottle blank.

Further, the blowing cleaning device comprises a second blowing core 61, wherein the second blowing core 61 is arranged on the machine body 10 and is positioned below the mouth die 20, the second blowing core 61 can move close to or far away from the mouth die 20 along the height direction of the machine body 10, the second blowing core 61 can penetrate out of the mouth die 20 and penetrate into the bottle body after moving close to the mouth die 20, and the second blowing core 61 can introduce gas into the bottle body to blow and clean the bottle body.

On the basis of the structure, the bottle body molded at the molding station can move to the cleaning bottle taking station under the drive of the die 20, then the second air blowing core 61 can move upwards, pass through the die 20 and stretch into the bottle body, then the second air blowing core 61 can be communicated with external air supply equipment, and the second air blowing core 61 can introduce air into the bottle body to blow and clean the bottle body.

So, in injection molding station, preforming station and shaping station, the bush 20 all corresponds the mould below that is located corresponding station, and each mould all can carry out the compound die in the top of bush 20, can make the bottleneck of each fashioned bottle embryo of station and bottle down, prevent that the foreign matter from dropping to the product from the top in, in addition, also can make the bottle after the shaping direct motion to clean bottle station of getting carry out the cleaning of blowing.

Specifically, the blowing cleaning device further comprises a die opening and closing assembly, the die opening and closing assembly is mounted on the machine body 10, and the die opening and closing assembly can move along the height direction of the machine body 10 to be close to or far away from the die 20.

Because the bush is generally realized by two half bush, two half bush can be close to each other and realize the bush compound die promptly, and two half bush are kept away from each other and can realize the bush die opening, when blowing clean to the bottle, the bush subassembly that opens and shuts can be close to bush 20 motion, cooperates with two half bush, makes two bush be close to each other, realizes the compound die of bush, prevents that bush 20 shifts in blowing in-process, and blowing clean effect is better. The opening and closing assembly of the mouth mold moves away from the mouth mold, so that the mouth mold can be mutually separated from the two half mouth molds, the opening of the mouth mold is realized, and the bottle body is taken down. More specifically, the die opening and closing assembly includes a die plate 64, a die release insert 63, and a die plate driving member 65, and a positioning socket 121 is correspondingly disposed on the die 20, the die release insert 63 is mounted on the die plate 64, and the die plate driving member 65 can drive the die plate 64 to move along the height direction of the machine body 10, so that the die release insert 63 is inserted into the positioning socket 121.

In this way, the stripper plate driving piece 65 can drive the stripper plate 64 to move up and down, so that the stripper insert 63 on the stripper plate 64 can be driven to move up and down to be matched with or withdraw from the positioning socket 121 of the die 20, and the stripper plate 64 can be driven to move up and down by moving up the stripper insert 63, so that the stripper insert 63 can be inserted into the positioning socket 121 to realize positioning of the die after the die is clamped. Further, in this embodiment, the rotary table 12 may be provided on the machine body 10, and the rotary table 12 is pivotally connected to the machine body 10, and of course, a plurality of dies 20 may be provided on the rotary table 12, die plates are correspondingly installed at positions of the rotary table 12 corresponding to the injection molding station, the preforming station, the molding station and the cleaning bottle taking station, and a plurality of dies 20 are provided on each die plate, and the injection molding device, the preforming device, the molding device and the blowing cleaning device are sequentially distributed at intervals in a rotation direction of the rotary table 12.

On the basis of the structure, the bottom end of the cavity injection mold 31 of the injection molding device can be correspondingly provided with a plurality of cavity injection 311, the injection cores 32 are provided with a plurality of cores, the plurality of cores 32 are arranged on the core injection 32 plate, the machine body 10 is provided with the core injection driving piece 33, the core injection driving piece 33 drives the core injection 32 plate to move up and down, and the plurality of cores 32 can be correspondingly driven to correspondingly penetrate out or withdraw from the plurality of mouth molds 20, so that mold opening or mold closing is realized, and a plurality of bottle blanks are molded by one-time injection molding.

Thereafter, the turntable 12 is rotated to the next station, and a plurality of pre-blowing cavities 42 may be provided at the bottom end of the pre-blowing mold 41 corresponding to the position of the pre-forming device, and a plurality of pre-blowing cores 43 may be provided correspondingly, and the plurality of pre-blowing cores 43 may be mounted on the pre-blowing core plate 45, and the pre-blowing core plate 45 is driven to move up and down by the pre-blowing core plate driving member 451. In addition, the stretching rods 44 can be connected in each pre-blowing core 43 in a penetrating way, each stretching rod 44 is installed on the stretching moving plate 46, and driven by the stretching moving plate driving piece 461 to move up and down, so that the pre-blowing core plate driving piece 451 drives the pre-blowing core plate 45 to move upwards, pass through the neck mold 20 and perform mold closing with the pre-blowing mold 41, and simultaneously the stretching moving plate driving piece 461 correspondingly drives the stretching rods 44 to move upwards and pass through the pre-blowing core 43 to perform stretching action, so that a plurality of bottle blanks can be pre-blown at one time.

It should be noted that, the stretching plate driving member 461 drives the stretching rods 44 on the stretching plate 46 to synchronously rise or fall, so that the stretching rods 44 have consistent stretching lengths, so as to ensure consistent structural dimensions of the formed bottle.

Thereafter, the turntable 12 rotates to the molding station, the plurality of dies 20 on the die plate can drive the plurality of pre-blow molded bottle blanks to move below the blow mold, the bottom end of the blow mold can be correspondingly provided with a plurality of molding cavities 51, and the plurality of first blow cores 52 can be correspondingly arranged on the first blow core plate 53, and the plurality of first blow cores 52 can be driven to move up and down by driving the first blow core plate 53 through the first blow core plate driving piece 54, so that the bottle bodies on the dies 20 correspondingly pass through the plurality of dies 20 to perform die clamping actions with the blow mold, and blow molding is performed, so that a plurality of bottle bodies are molded at one time.

Finally, the plurality of mouth molds 20 on the mouth mold plate move to the cleaning bottle taking station under the rotation of the turntable 12, a plurality of second air blowing cores 61 are arranged on the second air blowing core plate 62, and the air blowing cleaning of a plurality of bottle bodies can be completed at one time under the driving of the second air blowing core plate driving piece 66.

Based on the structure, the rotary table 12 can drive the die 20 to rotate to different stations, and the forming action continuity is high.

Further, a turntable frame 11 and a turntable frame driving member 13 may be disposed on the machine body 10, the turntable frame 11 is mounted on the machine body 10, the turntable frame 11 can move along the height direction of the machine body 10, the turntable frame driving member 13 can drive the turntable frame 11 to move, and the turntable 12 is pivotally connected to the turntable frame 11.

In this way, the turntable frame 11 is driven to move up and down by the turntable frame driving piece 13, and meanwhile, the turntable 12 on the turntable frame 11 is driven to move up and down, so that a plurality of dies 20 are driven to move up and down simultaneously, the dies are opened or closed correspondingly to the dies above the dies 20, the injection cores 32, the pre-blowing cores 43, the first blowing cores 52 or the second blowing cores 61 which are correspondingly arranged below the dies 20 can be driven by independent driving respectively, the up and down movement of the dies 20 can be consistent, the forming actions of the stations can be independent, and the forming and cleaning efficiency is high.

Further, be equipped with the mounting groove in the bottom of injection mould, be equipped with the injection cavity mould in this mounting groove, be formed with the injection cavity in the specific injection cavity mould, so, the accessible is equipped with the injection cavity mould in the injection mould, the injection cavity mould with the injection mould in the passageway intercommunication can, the injection cavity mould can be dismantled and assembled, the clearance is dismantled in the later stage of being convenient for. In addition, a plurality of injection cavity moulds are assembled in the mounting groove, prevent that injection cavity mould protrusion from causing the interference in the terminal surface of bottom surface and the mouth template of injection mould, reduce the clearance of compound die, the shaping effect is better.

Further, be equipped with heating element in the preblowing mould, heating element is used for carrying out the heating to the preblowing chamber, so, at the in-process of preblowing shaping, heating element can be to the bottle embryo heating of preblowing shaping, makes the bottle embryo keep certain temperature even, prevents that the bottle embryo of preblowing shaping from moving to the condition that next station appears collapsing, the later stage shaping of being convenient for.

Further, a guide plate can be connected between the two demolding inserting sheets, a first guide post is arranged on two sides of the guide plate, a connecting piece can be connected between the guide plate and the bottom end of the second blowing core plate, one end of the first guide post is connected with the second blowing core plate, the other end of the first guide post movably penetrates through the guide plate and is connected with the demolding plate, and the demolding plate driving piece can drive the guide plate to move.

Therefore, when the blowing cleaning operation of the blowing core is performed, the guide plate is driven to move up and down by the stripper plate driving piece, the guide plate can guide the second blowing core plate to move up and down, and in the up and down movement process, the first guide post can be in sliding fit with the stripper plate to guide the second blowing core plate to move up and down relatively, and the movement structure is stable.

Although only certain elements and embodiments of the present application have been illustrated and described, many modifications and changes (e.g., variations in size, dimensions, structure, shape and proportions of the various elements, mounting arrangements, use of materials, colors, orientations, etc.) may be made by those skilled in the art without materially departing from the scope and spirit of the application in the claims.

It should be noted that the above-mentioned embodiments are only preferred examples of the present utility model, and should not be construed as limiting the scope of the present utility model, and any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to fall within the scope of the present utility model as claimed.

Claims

1. A plastic container molding device is characterized by comprising,

the forming device is arranged at the forming station and is used for being matched with the mouth die to perform blow forming on a bottle blank with a bottle mouth facing downwards and pre-blow formed at the top end of the mouth die so as to form a bottle body;

the machine body is provided with a cleaning bottle taking station and an air blowing cleaning device, and the air blowing cleaning device is arranged at the cleaning bottle taking station and is used for being matched with the mouth die so as to blow and clean the bottle body with the downward blowing molding bottle mouth at the top end of the mouth die.

2. The molding apparatus of claim 1, wherein the injection molding apparatus comprises a cavity mold and a core, the cavity mold is disposed at a top end of the machine body and above a die, a cavity is disposed at a bottom end of the cavity mold, the die is movable in a height direction of the machine body toward or away from the cavity mold, the die is configured to be inserted into the cavity after the cavity mold is moved, the core is disposed on the machine body and below the die, the core is movable in a height direction of the machine body toward or away from the die, and the core is configured to be inserted into the die and extend into the cavity after the cavity mold is moved.

3. The plastic container forming apparatus as claimed in claim 1, wherein the preforming means comprises a pre-blow mold provided at a top end of the body and above a die having a pre-blow cavity provided at a bottom end thereof, the die being movable toward and away from the pre-blow mold in a height direction of the body, the die being adapted to be inserted into the pre-blow cavity after the movement toward the pre-blow mold, and a pre-blow core mounted to the body and positioned below the die, the pre-blow core being movable toward and away from the die, the pre-blow core being adapted to be extended from the die and to be inserted into the pre-blow cavity after the movement toward the die, the pre-blow core being adapted to be blown after the insertion into the pre-blow cavity.

4. The plastic container molding apparatus as claimed in claim 1, wherein the molding apparatus comprises a blow mold provided at a top end of the body and above a die having a molding cavity provided at a bottom end thereof, the die being movable toward and away from the blow mold in a height direction of the body, the die being adapted to be stretched into the molding cavity after the movement toward the die, and a first blow core mounted to the body and located below the die, the first blow core being movable toward and away from the die, the first blow core being adapted to be stretched out from the die and to be pierced into the molding cavity after the movement toward the die, the first blow core being adapted to be blown after the piercing into the molding cavity, the first blow core being internally pierced with a stretch rod adapted to stretch a bottle blank after the first blow core is pierced into the molding cavity.

5. The plastic container forming device according to claim 4, wherein the machine body is provided with a stretching moving plate and a stretching moving plate driving member, the stretching moving plate is arranged below the first blowing core, the stretching rod is arranged on the stretching moving plate, and the stretching moving plate driving member is used for driving the stretching moving plate to move along the height direction of the machine body.

6. The plastic container forming apparatus as claimed in claim 1, wherein the blowing cleaning means comprises a second blowing core provided on the body below the die, the second blowing core being movable toward and away from the die in a height direction of the body, the second blowing core being adapted to be passed out of the die and to be passed into the bottle after being moved toward the die, and the second blowing core being adapted to introduce a gas into the bottle to blow-clean the bottle.

7. The plastic container forming apparatus according to claim 6, wherein the blowing cleaning apparatus further comprises a die opening and closing assembly mounted on the machine body and movable in a height direction of the machine body toward or away from the die, the die opening and closing assembly being adapted to open the die to disengage the mouth from the die after the movement away from the die;

8. The plastic container forming apparatus as claimed in any one of claims 1 to 7, wherein a turntable is provided on the machine body, the turntable is pivotally connected to the machine body, a plurality of dies are provided on the turntable, and the injection molding apparatus, the preforming apparatus, and the forming apparatus are sequentially spaced apart in a rotation direction of the turntable.

9. The plastic container forming apparatus as claimed in claim 8, wherein the body is provided with a turntable frame mounted to the body and movable in a height direction of the body, and a turntable frame driving member for driving the turntable frame to move, the turntable being pivotally connected to the turntable frame.