CN113370500A

CN113370500A - Plastic container forming device

Info

Publication number: CN113370500A
Application number: CN202110753063.4A
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: 2021-07-02
Publication date: 2021-09-10
Also published as: CN114347430A

Abstract

The invention discloses a plastic container forming device, which comprises a machine body, wherein an injection molding station, a preforming station and a forming station are arranged on the machine body; the neck ring mold is arranged on the machine body and can move to the injection molding station, the preforming station and the forming station in sequence; the injection molding device is arranged at the injection molding station and is used for being matched with the neck mold so as to injection mold a bottle blank with a downward bottle opening at the top end of the neck mold; the preforming device is arranged at a preforming station and is used for being matched with the neck mold so as to perform pre-blowing molding on a bottle blank with a downward bottle opening formed by injection molding at the top end of the neck mold; and the forming device is arranged at the forming station and is used for being matched with the neck mold so as to blow and form a bottle body by blowing the bottle blank with the downward bottle opening formed by pre-blowing at the top end of the neck mold. When the bottle blank is subjected to injection molding, preforming and molding, the molded bottle mouth faces downwards, and foreign matters are prevented from falling into the bottle blank and the bottle body in the molding process.

Description

Plastic container forming device

Technical Field

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

Background

At present, plastic containers, such as liquid plastic bottles of beverage bottles, hanging bottles and the like, generally need three processes during production: the first procedure, the cavity injection mold is matched with a mouth mold, and a bottle blank is formed by injection molding and preliminary molding; the second procedure, the cavity injection mold is separated from the neck mold, the bottle embryo is connected with the bottom end of the neck mold in a hanging mode, the neck mold drives the bottle embryo to move to the next station, and preliminary air blowing is carried out on the bottle embryo by matching with the pre-blowing core, so that the bottle embryo is stretched and preliminarily molded; and in the third process, the blowing core is separated from the neck mold, the neck mold drives the preliminarily molded bottle blank to move to the next station, and the blowing core is matched to blow the preliminarily molded bottle blank and finally mold the bottle body.

However, in the existing blow molding process, the molds for injection molding, pre-blowing and molding are all located below the mouth mold for molding the caliber of the bottle blank, i.e. after mold stripping, so that the opening of the formed container structure is finally upward, and when the formed container is conveyed to a filling workshop, the bottle mouth is upward, so that dirty objects are easy to fall into the formed container, and the container is easy to be polluted in the conveying process.

Disclosure of Invention

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

The purpose of the invention is realized by adopting 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 neck ring mold is arranged on the machine body and can move to the injection molding station, the preforming station and the forming station in sequence;

the injection molding device is arranged at the injection molding station and is used for being matched with the neck mold so as to injection mold a bottle blank with a downward bottle opening at the top end of the neck mold;

the preforming device is arranged at a preforming station and is used for being matched with the neck mold so as to perform pre-blowing molding on a bottle blank with a downward bottle opening formed by injection molding at the top end of the neck mold;

and the forming device is arranged at the forming station and is used for being matched with the neck mold so as to blow and form a bottle body by blowing the bottle blank with the downward bottle opening formed by pre-blowing at the top end of the neck mold.

Further, the injection molding device comprises a cavity injection mold and an injection core, the cavity injection mold is arranged at the top end of the machine body and is positioned above the neck mold, and the bottom end of the cavity injection mold is provided with an injection cavity; the mouth mold can move close to or far away from the cavity injection mold along the height direction of the machine body, and the mouth mold is used for being connected into the cavity injection mold after moving close to the cavity injection mold; the injection core is arranged on the machine body and is positioned below the mouth mold; the injection core can move close to or far away from the die along the height direction of the machine body; and the injection core is used for being connected to the neck mold in a penetrating way after moving close to the neck mold and extending into the injection cavity.

Further, the preforming device comprises a pre-blowing mold and a pre-blowing core, the pre-blowing mold is arranged at the top end of the machine body and is positioned above the neck mold, a pre-blowing cavity is arranged at the bottom end of the pre-blowing mold, and the neck mold can move 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 is positioned below the neck 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 neck ring mold after moving close to the neck ring mold and penetrating into the pre-blowing cavity; the pre-blowing core is used for blowing air after penetrating to the pre-blowing cavity.

Further, the forming device comprises a blow mould and a first blow core, the blow mould is arranged at the top end of the machine body and is positioned above a neck mould, the bottom end of the blow mould is provided with a forming cavity, and the neck mould can move close to or far away from the blow mould along the height direction of the machine body; the neck mold is used for extending into the molding cavity after approaching the blow mold; the first blowing core is arranged on the machine body and is positioned below the neck mold; the first blowing core can move close to or far away from the mouth mold; the first blowing core is used for extending out of the neck ring mold after moving close to the neck ring mold and penetrating into the molding cavity; the first air blowing core is used for blowing air after penetrating and connecting to the molding cavity; and a stretching rod penetrates through the first blowing core and is used for stretching the bottle blank in the first blowing core penetrating into the forming cavity.

Furthermore, the machine body is provided with a stretching movable plate and a stretching movable plate driving part, the stretching movable plate is arranged below the first blowing core, the stretching rod is installed on the stretching movable plate, and the stretching movable plate driving part is used for driving the stretching movable plate to move along the height direction of the machine body.

Furthermore, a cleaning bottle taking station and a blowing cleaning device are arranged on the machine body, and the blowing cleaning device is arranged on the cleaning bottle taking station and is used for being matched with the mouth mold to blow the bottle body with the downward bottle mouth formed by blowing at the top end of the mouth mold to clean and take the bottle.

Further, the blowing cleaning device comprises a second blowing core, the second blowing core is arranged on the machine body and is positioned below the mouth mold, and the second blowing core can move close to or far away from the mouth mold along the height direction of the machine body; the second air blowing core is used for penetrating out of the neck ring mold after moving close to the neck ring mold and penetrating into the bottle body; the second air blowing core is used for introducing air into the bottle body so as to blow and clean the bottle body.

Furthermore, the air blowing cleaning device also 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 close to or far away from the mouth mold along the height direction of the machine body; the neck ring mold opening and closing assembly is used for opening the neck ring mold after moving away from the neck ring mold so that the bottle mouth is separated from the neck ring mold;

the bush opening and closing assembly comprises a demoulding plate, a demoulding insertion piece and a demoulding plate driving piece, wherein a demoulding socket is formed in the bush, the demoulding insertion piece is installed on the demoulding frame movable plate, and the demoulding plate driving piece is used for driving the demoulding plate to move along the height direction of the machine body, so that the demoulding insertion piece is inserted into the opening socket.

Furthermore, a turntable is arranged on the machine body and is pivoted on the machine body, a plurality of mouth molds are arranged on the turntable, and the injection molding device, the preforming device and the forming device are sequentially distributed at intervals in the rotating direction of the turntable.

Furthermore, the machine body is provided with a rotating disc frame and a rotating disc frame driving part, and the rotating disc frame is arranged on the machine body and can move along the height direction of the machine body; the rotating disc rack driving part is used for driving the rotating disc rack to move; the turntable is pivoted on the turntable frame.

Compared with the prior art, the invention has the beneficial effects that: when the injection molding device is used for molding, the neck mold can move to an injection molding station, the neck mold can be matched with the injection molding device to preliminarily mold a bottle blank, and the molded bottle blank is positioned at the top end of the neck mold. And then, the neck ring mold drives the bottle blank to move to a preforming station, and then the bottle blank is matched with a preforming device to be subjected to preblowing forming. Then, the neck ring mold drives the bottle blank formed by pre-blowing to move to a forming station, the neck ring mold is matched with the forming device, the bottle body is formed by blowing, in the process, the neck ring molds are all positioned at the bottom end, the mouth of the formed bottle body faces downwards, and therefore foreign matters can be prevented from falling into the product from top to bottom in the neck ring mold transferring process.

In addition, the formed bottle body with the downward bottle opening can be driven by the neck mold to directly move to the bottle cleaning station, and is matched with the air blowing cleaning device to directly perform air blowing cleaning.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the injection molding apparatus of the present invention;

FIG. 3 is a schematic view of the construction of the preforming device according to the invention;

FIG. 4 is a schematic view of the construction of the air blast cleaning apparatus of the present invention;

FIG. 5 is a schematic view of the air blowing cleaning device of the present invention.

In the figure: 10. a body; 11. a rotary plate rack; 12. a turntable; 121. positioning the socket; 13. a turret drive member; 20. a neck ring mold; 31. injecting a cavity mold; 311. injecting a cavity; 32. core injection; 33. a core injection driving member; 41. pre-blow molding; 42. a pre-blowing cavity; 43. pre-blowing a core; 44. a stretch rod; 45. pre-blowing the core plate; 451. a pre-blowing core plate driving member; 46. stretching the movable plate; 461. a tension movable plate driving member; 51. a molding cavity; 52. a first blowing core; 53. a first air-blowing core plate; 54. a first blow core plate drive; 61. a second blowing core; 62. a second air-blowing core plate; 63. demolding the insert; 64. a stripper plate; 65. a stripper plate driver; 66. a second blowing core plate driving member.

Detailed Description

The present invention is further described with reference to the accompanying drawings and specific embodiments, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict. Except as specifically noted, the materials and equipment used in this example are commercially available. Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. In the description of the present application, "a plurality" means two or more unless specifically stated otherwise.

In the description of the present application, it should be noted that unless otherwise specifically stated or limited, the terms "connected," "communicating," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a connection through an intervening medium, a connection between two elements, or an interaction 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 as appropriate.

The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings 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.

A plastic container forming apparatus as shown in fig. 1-5, which comprises a machine body 10, a mouth mold 20, an injection molding apparatus, a preforming apparatus, a forming apparatus and a blowing cleaning apparatus, 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 neck mold 20 is mounted on the machine body 10 and can move to an injection molding station, a preforming station, a forming station and a cleaning bottle-taking station in sequence.

The injection molding device is arranged at an injection molding station and is used for being matched with the neck mold 20 so as to perform injection molding on the top end of the neck mold 20 to form a bottle blank; the preforming device is arranged at the preforming station and is used for being matched with the neck mold 20 so as to perform pre-blowing forming on the bottle blank formed by injection molding at the top end of the neck mold 20.

In addition, the forming device is arranged at the forming station and is used for matching with the mouth mold 20 so as to blow and form the bottle body on the bottle blank pre-blown and formed at the top end of the mouth mold 20; the air blowing cleaning device is arranged at the cleaning bottle taking station and is used for being matched with the mouth mold 20 so as to blow and clean the bottle body formed by air blowing at the top end of the mouth mold 20.

On the basis of the structure, when the plastic container forming device is used, the mouth mold 20 can move to an injection molding station during forming, the mouth mold 20 can be matched with the injection molding device to preliminarily form a bottle blank, and the formed bottle blank is positioned at the top end of the mouth mold 20. Thereafter, the neck ring mold 20 drives the bottle preform to move to the preforming station, and then cooperates with the preforming device to perform the pre-blow molding. Then, the neck ring mold 20 drives the bottle blank formed by pre-blowing to move to a forming station, the neck ring mold 20 is matched with a forming device, and the bottle body is formed by blowing, in the process, the neck ring mold 20 is located at the bottom end, the mouth of the formed bottle body faces downwards, and therefore foreign matters can be prevented from falling into the product from top to bottom in the transferring process of the neck ring mold 20.

In addition, the formed bottle body with the downward bottle opening can be driven by the neck mold 20 to directly move to the bottle cleaning station, and the bottle body is matched with the air blowing cleaning device to directly perform air blowing cleaning.

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

On the basis of this construction, during injection molding, the die 20 can be moved upward to protrude into the injection cavity 311 of the injection cavity mold 31, after which the injection core 32 can be moved close to the die 20, the injection core 32 can be moved through the die 20 and protrude into the injection cavity 311 after moving close to the die 20, after which, by injecting the plastic into the injection cavity 311 through the injection channel of the cavity mold 31, the structure of the die 20 can form a bottle preform opening at the end of the injection cavity 311, the injection core 32 can form a certain cavity structure in the bottle blank, the neck mold 20 and the injection core 32 exit the injection cavity 311, the injection core 32 exits the neck mold 20, and the bottle blank structure with the cavity and the bottle mouth can be formed preliminarily, since the injection cavity 311 is above the die 20 during the molding process, the molded bottle mouth structure is downward, and then the mouth of the container molded at the later stage is downward, so that the bottle blank or the molded container is prevented from being polluted because dirt falls off from the bottle mouth in the transferring process.

Further, the preforming apparatus 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 body 10 above the mouthpiece 20, and a pre-blowing cavity 42 is disposed at the bottom end of the pre-blowing mold 41, and likewise, the mouthpiece 20 is movable toward or away from the pre-blowing mold 41 in the height direction of the body 10, and the mouthpiece 20 is inserted into the pre-blowing cavity 42 after moving toward 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, the pre-blowing core 43 can move close to or away from the die 20, and the pre-blowing core 43 extends from the die 20 after moving close to the die 20 and penetrates into the pre-blowing cavity 42. And the pre-blowing core 43 can blow air after penetrating the pre-blowing cavity 42.

On the basis of the structure, during the pre-blowing forming, the bottle embryo formed above the mouth mold 20 at the injection molding station can move to the pre-forming station, when the bottle embryo moves to the pre-forming station, the mouth mold 20 can move upwards to be close to the pre-blowing mold 41, so that the pre-blowing mold 41 is assembled from the top of the mouth mold 20, the bottle embryo on the mouth mold 20 can extend into the pre-blowing cavity 42, the pre-blowing core 43 penetrates into the pre-blowing cavity 42 from the bottom of the mouth mold 20, the pre-blowing core 43 blows to pre-blow the bottle embryo, similarly, the blowing opening of the bottle embryo faces downwards, the foreign matter in the bottle embryo can be prevented from falling into the bottle embryo, in the pre-blowing process, the foreign matter in the bottle embryo can be cleaned, and the cleanliness of the bottle embryo after forming is better.

Further, the above-described molding apparatus includes a blow mold provided at the top end of the body 10 above the die 20 and a first blow core 52, and the bottom end of the blow mold is provided with a molding cavity 51, and the particular die 20 is movable toward or away from the blow mold in the height direction of the body 10, and the die 20 is inserted into the molding cavity 51 after moving toward the blow mold.

The first blowing core 52 is mounted on the machine body 10 and positioned below the mouthpiece 20; the first blow core 52 may be moved closer to or further from the die 20; the first blowing core 52 extends from the die 20 after moving close to the die 20 and penetrates into the molding cavity 51; the first blowing core 52 is used for blowing air after being threaded to the molding cavity 51; a stretching rod 44 is threaded into the first blow core 52, and the stretching rod 44 is used for stretching the bottle blank when the first blow core 52 is threaded into the molding cavity 51.

In a specific forming process, the bottle preform preformed at the preforming station can be moved to the forming station, then the die 20 drives the preformed bottle preform to move upward to drive the bottle preform to extend into the forming cavity 51 of the blow mold, and the first blowing core 52 can extend from the die 20 after moving close to the die 20 and penetrate through the forming cavity 51. The first blow core 52 blows air after threading to the molding cavity 51. A stretching rod 44 may also be threaded into the first blow core 52, and the stretching rod 44 may stretch the bottle blank when the first blow core 52 is threaded into the forming cavity 51.

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

Specifically, the machine body 10 may be further provided with a drawing plate 46 and a drawing plate driving member 461, the drawing plate 46 may be provided below the first blowing core 52, the drawing rod 44 may be attached to the drawing plate 46, and the drawing plate driving member 461 may drive the drawing plate 46 to move in the height direction of the machine body 10.

Therefore, the stretching movable plate 46 can be driven by the stretching movable plate driving member 461 to move close to or far from the first blowing core 52, so that the stretching rod 44 on the stretching movable plate 46 can move up and down relative to the first blowing core 52, and thus, the length of the stretching rod 44 extending out of the first blowing core 52 can be adjusted, namely, the length of the stretching rod 44 extending into the bottle blank can be adjusted, so that the bottle blanks of different models can be conveniently molded, and the extending length of the stretching rod 44 can be adjusted according to the size of the finally molded bottle blank.

Further, the blowing cleaning device includes a second blowing core 61, the second blowing core 61 is disposed on the machine body 10 and is located below the mouth mold 20, and the second blowing core 61 can move close to or away from the mouth mold 20 along the height direction of the machine body 10; the second blowing core 61 can penetrate out of the neck mold 20 after moving close to the neck mold 20 and penetrate into the bottle body; 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 formed at the forming station can move to the cleaning bottle taking station under the driving of the neck mold 20, then the second air blowing core 61 can move upwards, penetrate through the neck mold 20 and extend 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 guide air into the bottle body to clean the bottle body by air blowing.

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

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

Because the bush is generally realized by two half bushes, two half bushes can be close to each other and realize the bush compound die promptly, two half bushes keep away from each other and can realize the bush die sinking, when blowing clean to the bottle, bush subassembly that opens and shuts can be close to bush 20 motion, with two half bush cooperations, makes two bushes be close to each other, realizes the compound die of bush, prevents to blow 20 displacements of in-process bush, and the clean effect of blowing is better. And the neck ring opening and closing assembly moves away from the neck ring mold, so that the neck ring mold opening assembly and the two half neck rings can be mutually away from each other, the neck ring mold opening is realized, and the bottle body is taken down. More specifically, the opening and closing assembly of the die comprises a stripping plate 64, a stripping insert 63 and a stripping plate driving member 65, a positioning socket 121 is correspondingly arranged on the die 20, the stripping insert 63 is mounted on the stripping plate 64, and the stripping plate driving member 65 can drive the stripping plate 64 to move along the height direction of the machine body 10, so that the stripping insert 63 is inserted into the positioning socket 121.

So, accessible stripper plate driving piece 65 drives stripper plate 64 up-and-down motion, alright drive the drawing of patterns inserted sheet 63 up-and-down motion on the stripper plate 64, realizes cooperating or withdrawing from with the location socket 121 of bush 20, and concrete stripper plate 64 upward movement alright drive drawing of patterns inserted sheet 63 upward movement, and drawing of patterns inserted sheet 63 can insert in location socket 121, realizes the location after the compound die of bush. Further, in this embodiment, a rotating disc 12 may be disposed on the machine body 10, the rotating disc 12 is pivotally connected to the machine body 10, certainly, a plurality of mouth molds 20 may be disposed on the rotating disc 12, mouth mold plates are correspondingly mounted at positions of the rotating disc 12 corresponding to the injection molding station, the preforming station, the forming station and the bottle cleaning station, a plurality of mouth molds 20 are disposed on each mouth mold plate, and the injection molding device, the preforming device, the forming device and the air blowing cleaning device are sequentially distributed at intervals in the rotating direction of the rotating disc 12.

On this structure basis, the bottom of the notes chamber mould 31 of above-mentioned injection molding device can correspond and set up a plurality of notes chambeies 311, and annotate the core 32 and be equipped with a plurality ofly, a plurality of notes cores 32 are installed on annotating the core 32 board, set up on the organism 10 and annotate core driving piece 33, drive through annotating core driving piece 33 and annotate core 32 board up-and-down motion, alright correspond a plurality of notes cores 32 of drive and correspond a plurality of bush 20 and wear out or withdraw from, realize the die sinking or compound die, a plurality of bottle embryo of injection moulding.

Thereafter, the turntable 12 rotates to the next station, and a plurality of pre-blowing cavities 42 are correspondingly disposed at the bottom end of the pre-blowing mold 41 at the position corresponding to the position of the pre-forming device, and correspondingly, a plurality of pre-blowing cores 43 may also be disposed, and the plurality of pre-blowing cores 43 may be mounted on the pre-blowing core plate 45, and the pre-blowing core plate driving member 451 drives the pre-blowing core plate 45 to move up and down. In addition, the stretching rods 44 can be connected in each pre-blowing core 43 in a penetrating manner, each stretching rod 44 is mounted on a stretching movable plate 46 and moves up and down under the driving of a stretching movable plate driving member 461, so that the pre-blowing core plate driving member 451 drives the pre-blowing core plate 45 to move up, penetrate through the die 20 and match with the pre-blowing die 41, and meanwhile, the stretching movable plate driving member 461 correspondingly drives a plurality of stretching rods 44 to move up, penetrate through the pre-blowing cores 43 for stretching, and a plurality of bottle blanks can be pre-blown and molded at one time.

It should be noted that the stretching plate driving member 461 drives the plurality of stretching rods 44 on the stretching plate 46 to ascend or descend synchronously, so that the stretching lengths of the plurality of stretching rods 44 are consistent, which is convenient to ensure that the sizes of the formed bottle bodies are consistent.

Thereafter, the turntable 12 rotates to the forming station, the plurality of neck molds 20 on the neck mold plate can drive the plurality of bottle blanks formed by pre-blowing to move to the lower side of the blow mold, the bottom end of the blow mold can be correspondingly provided with a plurality of forming cavities 51, similarly, the plurality of first blowing cores 52 are correspondingly arranged, and can be arranged on the first blowing core plate 53, the first blowing core plate driving part 54 drives the first blowing core plate 53 to drive the plurality of first blowing cores 52 to move up and down, the bottle bodies on the neck molds 20 correspondingly penetrate through the plurality of neck molds 20, the mold closing action is carried out on the bottle bodies and the blow mold, the blow molding is carried out, and the plurality of bottle bodies are formed 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, the plurality of second blowing cores 61 are arranged on the second blowing core plate 62, and the plurality of bottles can be blown and cleaned at one time under the driving of the second blowing core plate driving piece 66.

On the basis of the structure, the rotary table 12 can drive the mouth mold 20 to rotate to different stations, and the forming action continuity is high.

Further, a rotating disc frame 11 and a rotating disc frame driving part 13 may be disposed on the machine body 10, the rotating disc frame 11 is mounted on the machine body 10, and the rotating disc frame 11 may move along the height direction of the machine body 10; the rotary plate rack driving part 13 can drive the rotary plate rack 11 to move; the turntable 12 is pivoted to the turntable frame 11.

So, accessible revolving stage frame driving piece 13 drives the up-and-down motion of revolving stage frame 11, drive the carousel 12 up-and-down motion on the revolving stage frame 11 simultaneously, and then drive a plurality of bush 20 from top to bottom simultaneously, relative bush 20 top corresponds the mould and carries out the die sinking or compound die, and each device correspondence locates the notes core 32 of bush 20 below, blow core 43 in advance, first blow core 52 or second blow core 61 all can be driven by the individual drive respectively, can include that the up-and-down motion of bush 20 is unanimous, the shaping action that again can make each station is independent, shaping and clean efficient.

While only certain features and embodiments of the application have been illustrated and described, many modifications and changes may occur to those skilled in the art (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the scope and spirit of the invention in the claims.

Finally, it should be noted that: the above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention should not be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. A plastic container forming apparatus, comprising,

2. The plastic container molding apparatus as claimed in claim 1, wherein said injection molding apparatus comprises a cavity mold and a core, said cavity mold being disposed at a top end of the body and above the die, said cavity mold having a cavity at a bottom end thereof; the mouth mold can move close to or far away from the cavity injection mold along the height direction of the machine body, and the mouth mold is used for being connected into the cavity injection mold after moving close to the cavity injection mold; the injection core is arranged on the machine body and is positioned below the mouth mold; the injection core can move close to or far away from the die along the height direction of the machine body; and the injection core is used for being connected to the neck mold in a penetrating way after moving close to the neck mold and extending into the injection cavity.

3. A plastic container forming apparatus as claimed in claim 1, wherein said preforming means comprises a pre-blow mold and a pre-blow core, said pre-blow mold being disposed at a top end of the body and above a neck mold, said pre-blow mold having a pre-blow cavity at a bottom end thereof, said neck mold being movable toward and away from said pre-blow mold in a height direction of the 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 is positioned below the neck 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 neck ring mold after moving close to the neck ring mold and penetrating into the pre-blowing cavity; the pre-blowing core is used for blowing air after penetrating to the pre-blowing cavity.

4. A plastic container molding apparatus as claimed in claim 1, wherein said molding apparatus comprises a blow mold and a first blow core, said blow mold being disposed at a top end of the body above a neck mold, a bottom end of said blow mold being provided with a molding cavity, said neck mold being movable toward or away from said blow mold in a height direction of the body; the neck mold is used for extending into the molding cavity after approaching the blow mold; the first blowing core is arranged on the machine body and is positioned below the neck mold; the first blowing core can move close to or far away from the mouth mold; the first blowing core is used for extending out of the neck ring mold after moving close to the neck ring mold and penetrating into the molding cavity; the first air blowing core is used for blowing air after penetrating and connecting to the molding cavity; and a stretching rod penetrates through the first blowing core and is used for stretching the bottle blank in the first blowing core penetrating into the forming cavity.

5. The plastic container forming apparatus as claimed in claim 4, wherein a drawing plate provided below the first blow core and mounted to the drawing plate, and a drawing plate driving member for driving the drawing plate in a height direction of the body are provided to the body.

6. The plastic container forming apparatus as claimed in claim 1, wherein the body is provided with a clean bottle-taking station and a blowing cleaning device, the blowing cleaning device is provided at the clean bottle-taking station and adapted to cooperate with the mouth mold to blow clean bottle-taking of bottle bodies with a downward mouth formed by blowing at a top end of the mouth mold.

7. A plastic container forming apparatus as claimed in claim 6, wherein said blow cleaning means comprises a second blow core provided on the body below the die, said second blow core being movable toward and away from said die in a height direction of the body; the second air blowing core is used for penetrating out of the neck ring mold after moving close to the neck ring mold and penetrating into the bottle body; the second air blowing core is used for introducing air into the bottle body so as to blow and clean the bottle body.

8. The plastic container forming apparatus as claimed in claim 7, wherein said blowing cleaning means further comprises a die opening and closing assembly mounted to the body and movable toward and away from said die in a height direction of the body; the neck ring mold opening and closing assembly is used for opening the neck ring mold after moving away from the neck ring mold so that the bottle mouth is separated from the neck ring mold;

9. A plastic container forming apparatus as claimed in any one of claims 1 to 8, wherein said body is provided with a turntable, said turntable is pivotally connected to said body, said turntable is provided with a plurality of dies, and said injection molding apparatus, said preforming apparatus and said forming apparatus are sequentially spaced apart in the rotational direction of said turntable.

10. The plastic container molding apparatus as claimed in claim 9, wherein the machine body is provided with a rotating turret frame and a rotating turret frame driving member, the rotating turret frame being mounted on the machine body and being movable in a height direction of the machine body; the rotating disc rack driving part is used for driving the rotating disc rack to move; the turntable is pivoted on the turntable frame.