CN113858590A - Injection-stretch-blow bottle-blowing integrated machine - Google Patents

Abstract

The invention relates to an injection-stretch blow molding all-in-one machine. The core of current notes blow all-in-one needs to break away from with the bottle base, influences machining efficiency. The bottle blowing machine comprises a rack, an injection molding mechanism, a bottle blowing mechanism and a conveying mechanism, wherein the conveying mechanism comprises a core body, an injection molding half is arranged at the opening of an injection molding cavity, the core body downwards passes through the injection molding half and is inserted into the injection molding cavity to form a bottle blank through injection molding, the injection molding half is opened after driving the bottle blank to upwards separate from the wall surface of the injection molding cavity, and the core body carries the bottle blank to separate from the injection molding cavity and move into a bottle blowing cavity after carrying the bottle blank out of injection molding and the injection molding half, so that the bottle blank is downwards stretched by the core body and blown into a bottle body. The core need not to extract when the bottle base is transported, has both shortened core ascending distance, promotes machining efficiency through shortening long time of single injection-moulded, still through reducing the core and rise the height and need not to reserve too much ascending space for the core, and then effectively reduces the height of blowing notes all-in-one, effectively prevents again that the bottle base from taking place deformation, promotes to use and experiences.

Description

Injection-stretch-blow bottle-blowing integrated machine

Technical Field

The invention relates to the field of plastic processing, in particular to an injection-stretch-blow-bottle-blowing integrated machine.

Background

The existing injection-blowing integrated machine has the functions of bottle blank injection molding and bottle body blowing at the same time, and can process particle raw materials into a bottle body in one step. The existing injection-blowing integrated machine comprises a rack, and an injection molding mechanism, a bottle blowing mechanism and a conveying mechanism which are arranged on the rack, wherein the injection molding mechanism is used for injection molding to form a bottle blank, the conveying mechanism is used for conveying the bottle blank formed by processing the injection molding mechanism to the bottle blowing mechanism, and the bottle blowing mechanism is used for blowing the bottle blank into a bottle body. The injection molding mechanism comprises an injection molding cavity and an injection molding core which can be inserted into the injection molding cavity, and the bottle blowing mechanism comprises a bottle blowing cavity and a core body stretching tube which can be inserted into the bottle blowing cavity.

When in use, a bottle blank processed and formed in the injection mechanism firstly rises to a separation cavity when the mold is opened, then rises to separate the height of the tube blank, the bottle blank is clamped by the half clamp and is horizontally transferred to the bottle blowing mechanism and then falls into the bottle blowing cavity, then the stretching mechanism drives the stretching rod to be inserted into the bottle blank for stretching and bottle blowing, so that the mold opening distance of the injection cavity is very long, the rising distance of the injection core is large, the time required by single injection of the injection mechanism is prolonged due to the increase of the displacement distance of the injection core, the height of the integrated machine is increased due to the large rising space required by the injection core, a stretching sealing structure is required to be arranged on the bottle blank and the half clamp to move to the bottle blowing cavity, the production is influenced, the production cost is increased, in addition, the half clamp transfers the bottle blank by wrapping the blank opening part for clamping the bottle blank, and the blank body part of the bottle blank is easy to deform due to high-temperature softening, the bottle blowing mechanism is deformed to produce waste products, and the product quality is influenced.

Disclosure of Invention

In order to solve the defects of the prior art, the invention provides the injection-stretch-blow molding all-in-one machine, wherein the core body which can be linked with the bottle blank is arranged on the conveying mechanism, and is inserted into the bottle blank and transfers the bottle blank, so that the time required by single injection molding processing is shortened by shortening the ascending distance of the core body, the processing efficiency is improved, the height of the injection-stretch-blow molding all-in-one machine is effectively reduced, the bottle blank is prevented from deforming during transferring, the product quality is ensured, and the use experience is improved.

The invention is realized by the following modes: an injection-stretch-blow-molding all-in-one machine comprises a rack, wherein an injection molding mechanism with an injection molding cavity, a blow molding mechanism with a blow molding cavity and a conveying mechanism are arranged on the rack, the conveying mechanism comprises a liftable core body, a liftable injection molding half is arranged at a cavity opening of the injection molding cavity, the core body downwards penetrates through the injection molding half and is inserted into the injection molding cavity, then a bottle blank is formed through injection molding, the injection molding half is opened after driving the bottle blank to upwards separate from the wall surface of the injection molding cavity, and the core body carries the bottle blank to separate from the injection molding cavity and move into the blow molding cavity after carrying out injection molding half, so that the bottle blank is downwards stretched by the core body and blown into a bottle body. The core body is arranged on the conveying mechanism, the injection molding half is arranged on the injection molding mechanism, the core body is inserted into a bottle blank formed by processing of the injection molding mechanism and moves synchronously, so that the core body does not need to be pulled out when the bottle blank is transported and serves as a stretching rod when a bottle is blown by stretching, the stretching rod and the stretching mechanism are omitted, the lifting distance of the core body is shortened by omitting the action of pulling out the bottle blank, the lifting distance of the core body is shortened to half of the original lifting distance, half of idle drawing stroke of the core body is omitted, the processing efficiency is improved by shortening the time length of single injection molding, the lifting height of the core body is reduced without reserving too much lifting space for the core body and the distance of the stretching rod to be inserted into the bottle blank again, the height of the blowing and injecting integrated machine is reduced, the core body is used for transferring the bottle blank, the core body is inserted into the bottle blank, the deformation of the bottle blank is effectively prevented, and the shape of the bottle blank is maintained by increasing the contact area between the core body and the bottle blank, prevent that base body from taking place the condition of warping, promote and use experience. The core has the function of injection molding core, transportation instrument and tensile pipe concurrently in the use, can insert the function that the chamber of moulding plastics realized the injection molding core and accomplish the operation of moulding plastics, can also come to carry out the transportation to the bottle base through grafting bottle base, can carry out the bottle blowing operation through core lapse draw-down in the bottle blowing intracavity again, has saved drawing mechanism and sealing mechanism, improves production efficiency and saves manufacturing cost, ensures that the bottle base can not off-centre, guarantees the quality. The cold and hot temperature adjusting component is arranged in the core body, so that the temperature of the bottle blank is always maintained in the temperature range required by processing, the bottle blank which is subjected to blow molding and is in a softening state is ensured to be transferred to the bottle blowing cavity in a preset shape, and the bottle blowing quality is ensured.

Preferably, the core is vertically arranged, the conveying mechanism comprises a movable table, a first lifting assembly for driving the movable table to vertically lift, a second lifting assembly for driving the core to stretch a bottle blank, a limiting assembly for limiting the lifting of the core and a translation assembly for driving the movable table to perform reciprocating translation between the injection molding mechanism and the bottle blowing mechanism, the core is respectively matched with the injection molding cavity and the bottle blowing cavity in a vertical plugging manner under the driving of the first lifting assembly, and the core passes through the injection molding half and is clamped and positioned by the limiting assembly after being inserted into the injection molding cavity, so that the core, the injection molding half and the injection molding cavity are enclosed to form a closed cavity which is isolated from the external space and is used for filling raw materials. The first lifting assembly drives the translation assembly to lift on the basis of the rack, and then the translation assembly drives the movable table, the second lifting assembly and the core body to lift synchronously, so that the core body, the injection molding cavity and the bottle blowing cavity are switched in a plugging manner, the core body can conveniently carry a bottle blank to be separated from the injection molding cavity and vertically inserted after being translated to the bottle blowing cavity, and the bottle blank is transferred; the translation assembly drives the movable table to move horizontally on the basis of the movable template of the injection molding machine, and then the movable table is used for driving the second lifting assembly and the core body to synchronously reciprocate between the injection molding mechanism and the bottle blowing mechanism so as to realize the reciprocating translation of the translation between the injection molding mechanism and the bottle blowing mechanism; the second lifting component drives the core body to lift on the basis of the movable table, so that the core body realizes the effects of injection molding of the core body, a transfer tool and a stretching rod in the original mechanism.

Preferably, the movable table comprises a frame, the second lifting assembly is fixedly connected to the frame and drives the core to lift and switch between a stretching station for blowing the bottle body, an injection molding station for enclosing a closed cavity and a hidden station completely hidden in the movable table through the linkage plate, the limiting assembly comprises a limiting part for clamping the linkage plate, and when the core lifts and switches to the injection molding station, the limiting part clamps the linkage plate and enables the core to be vertically positioned. The second lifting component can drive the core body to lift and switch among the stretching station, the injection molding station and the hidden station, and the core body falls from top to bottom and sequentially passes through the hidden station, the injection molding station and the stretching station. When the core body is positioned at the hidden station, the bottom end of the core body is positioned in the movable table, so that the core body is completely separated from the blank opening part; when the core body is positioned at an injection molding station, the length of the core body exposed out of the bottom surface of the movable table is matched with the depth of the injection molding cavity, so that the core body, the injection molding cavity and the injection molding half can be enclosed to form a closed cavity, and an injection molding mechanism can conveniently form a bottle blank through injection molding of the closed cavity; when the core body is positioned at the stretching station, the length of the bottom end of the core body exposed out of the bottom surface of the movable table is matched with the depth of the bottle blowing cavity, and the bottle blank is stretched and blown, so that the bottle blank is blown into a bottle body. When the core removes to the station of moulding plastics, utilize the locating part to implement vertical positioning to the core, prevent that the core from taking place the circumstances that rises because of receiving the extrusion of raw materials in the sealed cavity, ensure that the core is planted stably in the injection molding intracavity and keep the leakproofness of airtight cavity, prevent to mould plastics and take place the circumstances of leaking with the raw materials, ensure the bottle base quality of moulding plastics.

Preferably, the frame comprises a top plate and a bottom plate which are parallel to each other and are vertically separated, the limiting part is a vertical baffle which can be horizontally inserted between the top plate and the linkage plate, and when the frame is used, the baffle moves horizontally and is vertically clamped by the linkage plate and the top plate so as to limit the upward deviation of the core body. The limiting assembly is a baffle capable of horizontally reciprocating, when the core body moves to the injection molding station, the baffle is horizontally inserted between the top plate and the linkage plate in a vertical posture, and the vertical deformation resistance of the baffle is lower than the rising acting force received by the core body when the injection molding operation is carried out on the sealed cavity.

Preferably, the linkage plate is provided with a through hole with a waist drum-shaped cross section, the limiting part is a limiting rod arranged in the through hole in a lifting manner, a limiting surface which is arranged downwards is arranged in the middle of the limiting rod, the axial projection of the lower section of the limiting rod is matched with the axial projection of the through hole to be coincided with the axial projection of the lower section of the limiting rod, and the axial projection of the lower section of the limiting rod is completely covered, so that the limiting rod can be switched between a clamping station which is abutted against the periphery of the upper port of the through hole through the limiting surface and a lifting station which is completely penetrated through the through hole through the limiting rod. The gag lever post is through rotating the realization and putting the station switching between at lift station and card, when the gag lever post is in the card when putting the station, spacing face is along the projection of gag lever post axis and each other for the dislocation set with the perforation, the core rises to when moulding plastics the station, the gag lever post can contradict on fenestrate up end periphery through spacing face, make the gag lever post by the centre gripping between roof and link plate, play vertical limiting displacement to the core, prevent that the core from taking place the condition of upwards squinting when moulding plastics, when the gag lever post rotates to lift station, the axial projection of spacing face and gag lever post is complete to fall into the perforation, make spacing face can pass through the perforation through waist shape hole both sides region, and then make the gag lever post can hide the station, mould plastics station and tensile station lift switching.

Preferably, the translation assembly is a translation oil cylinder horizontally arranged, a cylinder body of the translation oil cylinder is fixedly connected with a movable template of the injection molding machine, the telescopic part is fixedly connected with the movable table, and the translation assembly drives the core body to horizontally move through the movable table. The translation oil cylinder drives the movable table to horizontally move on the basis of the movable template of the injection molding machine, so that the movable table can drive the core to be switched between the injection molding mechanism and the bottle blowing mechanism in a reciprocating mode, and the core can be made to perform injection molding operation, transfer operation and blowing operation in a circulating mode.

Preferably, the first lifting assembly comprises a vertically arranged first oil cylinder, the cylinder body of the first oil cylinder is fixedly connected with the rack, the telescopic part is fixedly connected with the movable template of the injection molding machine, and the first oil cylinder drives the movable template of the injection molding machine to lift so as to enable the translation assembly, the movable table and the core body to lift synchronously. The first oil cylinder drives the movable mould plate of the injection molding machine to lift on the basis of the machine frame, and then drives the core body to realize the plug-in matching with the injection molding cavity and the bottle blowing cavity respectively.

Preferably, the translation subassembly is in including setting up the slide rail on injection molding machine movable mould board and setting the slider on the movable table roof, the slider slides along the slide rail level to make the movable table order about the core and make a reciprocating translation between injection molding mechanism and bottle blowing mechanism, the slider slides along the slide rail, and existing reduction sliding resistance still promotes translation precision, and it is regional to blow the bottle chamber top from the regional translation of injection molding chamber top to ensure the core.

Preferably, the second lifting assembly comprises a vertically arranged second oil cylinder, a cylinder body of the second oil cylinder is fixedly connected with a bottom plate of the movable table, and the telescopic portion drives the core body to lift. The second oil cylinder independently lifts the core body on the basis of the movable table and is used for adjusting the distance between the bottom end of the core body and the bottom surface of the movable table, and then lifting switching among the hidden station, the injection molding station and the stretching station is achieved.

Preferably, the axis of the injection molding cavity is vertically arranged and provided with a cavity opening upwards, the bottom surface of the injection molding half and the cavity opening of the injection molding cavity are respectively provided with a lower positioning groove and a lower convex rib which can be vertically inserted and pulled out, the injection molding half is arranged at the cavity opening of the injection molding cavity through a liftable half fixing plate, and when the injection molding half clamp is in a clamping state from an opening state, the half fixing plate drives the injection molding half clamp to move downwards and is sleeved on the lower convex rib through the lower positioning groove, so that the injection molding half clamp is clamped and positioned in the clamping state. Mould plastics ha fu and install the chamber mouth department in the chamber of moulding plastics through ha fu fixed plate, lift through control ha fu fixed plate is adjusted and is moulded plastics ha fu and mould plastics the chamber mouth distance between the chamber mouth of moulding plastics, can mould plastics ha fu through the lifting and realize that underlying protruding muscle and underlying constant head tank are vertical to be broken away from, conveniently mould plastics ha fu and switch to the state of opening, can also realize that underlying protruding muscle inserts underlying constant head tank through the whereabouts when moulding plastics ha fu is in the clamping status, make mould plastics ha fu clamp locking at the clamping status, the extrusion effort that comes from the raw materials when effectively resisting moulding plastics, ensure sealed cavity's sealing performance. After the lower convex rib is inserted into the lower positioning groove, the injection molding half and the injection molding cavity are arranged concentrically.

Preferably, the bottom of the movable table is fixedly connected with a limiting ring, the inner edge of the bottom surface of the limiting ring forms a sealing ring surface capable of plugging a gap between the core body and the injection molding half, an upper convex rib is arranged on the outer edge of the bottom surface of the limiting ring, an upper positioning groove is arranged on the top surface of the injection molding half, and when the movable table falls and the core body is driven to be inserted into the injection molding cavity, the upper convex rib is vertically inserted into the upper positioning groove, so that the injection molding half is clamped and positioned in a clamping state. The spacing ring rigid coupling is on the movable table, and the core is vertical to be planted in the core, has both played radial spacing effect to the core, can also guide the core to realize vertical lift, ensures that core and spacing ring remain the concentric setting throughout, and then ensures that the core realizes and moulds plastics the chamber concentric setting through moulding plastics half of putting with the spacing ring card. The movable table drives the limiting ring to fall down and is inserted into the upper positioning groove through the upper convex rib, and the limiting and clamping effect is achieved on the injection molding half in the clamping state.

Preferably, the diameter of the inner side wall of the limiting ring is matched with the diameter of the outer side wall of the core body, so that the limiting ring and the core body are in sealed sleeve joint, the concentricity of the limiting ring and the core body is improved by reducing a gap between the inner side wall of the limiting ring and the outer side wall of the core body, and the guide precision is improved.

Preferably, the outer side wall of the core body forms an annular air blowing groove through a recess, the limiting ring is provided with an air blowing hole, when the core body is positioned at an injection molding station or a hidden station, the air blowing grooves are positioned above the air blowing hole and are mutually isolated, and when the core body is positioned at a stretching station, the air blowing hole is communicated with the closed cavity through the air blowing groove so that the bottle blank is blown into the bottle body. The air blowing grooves are formed in the local sections of the core body, so that the core body can be communicated with the inner cavity of the bottle blank through the air blowing grooves only when the core body is located at a stretching station, the operation of conveying high-pressure air is completed, and the bottle blank is blown into a bottle body. When the core body is positioned at an injection molding station, the air blowing grooves are hidden in the limiting rings, so that raw materials for injection molding cannot leak out through the air blowing grooves, and the quality of bottle blanks is ensured.

Preferably, the two bottle blowing mechanisms are respectively arranged at two sides of the injection molding mechanism, the conveying mechanism comprises two groups of cores which correspond to the bottle blowing mechanisms one by one, and the cores are arranged in the movable table in a lifting manner so as to enable the cores to synchronously and horizontally move. The time length of single processing of the mechanism of moulding plastics is less than the time length of single processing of bottle blowing mechanism, receives and blows the bottle base that comes from the mechanism of moulding plastics in turn through setting up two sets of bottle blowing mechanisms, and conveying mechanism is equipped with one and orders about the activity platform that the core goes up and down and the translation in step, ensures that the bottle base of the mechanism output of moulding plastics is carried to the bottle blowing mechanism of both sides in turn accurately, effectively promotes production efficiency. In the production process, the conveying mechanism can simultaneously participate in injection molding operation and bottle blowing operation through different cores, so that mutual interference among the cores is effectively prevented, and the production efficiency is further ensured. The core bodies are all arranged on the same movable table, so that the core bodies can be ensured to be capable of moving in a reciprocating mode between the injection molding mechanism and the corresponding bottle blowing mechanism.

Preferably, the number of the injection molding cavities is matched with the number of the bottle blowing cavities in a single bottle blowing mechanism, the injection molding mechanism continuously produces bottle blanks and alternately conveys the bottle blanks to the corresponding bottle blowing mechanisms, the bottle blanks produced by the injection molding mechanism at a single time can be alternately received by the two bottle blowing mechanisms and blown into bottles, the processing efficiency is effectively improved, and the bottle blanks are prevented from being extruded.

Preferably, the injection molding mechanism is provided with a plurality of rows of injection molding cavities, and the relative positions of the injection molding cavities are matched and correspond to the relative positions of the bottle blowing cavities on the bottle blowing mechanisms. The mechanism of moulding plastics accessible sets up a plurality of injection moulding chambeies and realizes many bottle base simultaneous processing, and the homoenergetic in each bottle blowing mechanism effectively receives and handles the bottle base that the mechanism of moulding plastics single processing formed, promotes machining efficiency, the energy can be saved.

The invention has the following outstanding beneficial effects: the core body is arranged on the conveying mechanism, the injection molding half is arranged on the injection molding mechanism, the core body is inserted into a bottle blank formed by processing of the injection molding mechanism and moves synchronously, so that the core body does not need to be pulled out when the bottle blank is transported and serves as a stretching rod when a bottle is blown by stretching, the stretching rod and the stretching mechanism are omitted, the lifting distance of the core body is shortened by omitting the action of pulling out the bottle blank, the lifting distance of the core body is shortened to half of the original lifting distance, half of idle drawing stroke of the core body is omitted, the processing efficiency is improved by shortening the time length of single injection molding, the lifting height of the core body is reduced without reserving too much lifting space for the core body and saving the time for the distance of the stretching rod to be inserted into the bottle blank again, the height of the blowing and injecting integrated machine is reduced, the core body is used for transferring the bottle blank, the core body is inserted into the bottle blank, the deformation of the bottle blank is effectively prevented, and the shape of the bottle blank can be maintained by increasing the contact area between the core body and the bottle blank when the core body is used for transferring the bottle blank, prevent that base body from taking place the condition of warping, promote and use experience.

Drawings

FIG. 1 is a schematic view of a partial structure of the injection, drawing and bottle blowing integrated machine;

FIG. 2 is a schematic view of a partial cross-sectional structure of the movable platen as it is raised and with the core in the injection station and the hidden station, respectively;

FIG. 3 is a schematic view of a partial cross-sectional configuration of the movable table as it is lowered and the core is in the injection and draw stations, respectively;

FIG. 4 is a schematic cross-sectional view of the injection molded half clamp in a clamped state;

FIG. 5 is a schematic cross-sectional view of the assembly structure between the core and the retainer ring when the core is at the injection station;

FIG. 6 is a schematic cross-sectional view of the assembly structure with the stop ring when the core is in the draw station;

fig. 7 is a schematic view of a partial cross-sectional structure of the position limiting member being a baffle;

in the figure: 1. the injection molding machine comprises a rack, 2, an injection molding cavity, 3, a bottle blowing cavity, 4, a core body, 5, injection molding half, 6, a movable table, 7, a first lifting component, 8, a second lifting component, 9, a translation component, 10, a limiting part, 11, a through hole, 12, a limiting surface, 13, a movable mold plate of the injection molding machine, 14, an upper convex rib, 15, an upper positioning groove, 16, a lower convex rib, 17, a lower positioning groove, 18, a half fixing plate, 19, a limiting ring, 20, a sealing ring surface, 21, an air blowing groove, 22, an air blowing hole, 23 and a linkage plate.

Detailed Description

The essential features of the invention will be further explained below with reference to the drawings and the detailed description of the specification.

The injection-stretch-blow-molding all-in-one machine shown in fig. 1 and 2 is composed of a rack, wherein an injection molding mechanism with an injection molding cavity 2, a blow molding mechanism with a blow molding cavity 3 and a conveying mechanism are arranged on the rack 1, the conveying mechanism comprises a liftable core body 4, a liftable injection molding half 5 is arranged at a cavity opening of the injection molding cavity 2, the core body 4 downwards penetrates through the injection molding half 5 and is inserted into the injection molding cavity 2 to form a bottle blank through injection molding, the injection molding half 5 is opened after driving the bottle blank to upwards separate from the wall surface of the injection molding cavity 2, and the core body 4 carries the bottle blank to separate from the injection molding cavity 2 and the injection molding half 5 and then moves into the blow molding cavity 3, so that the bottle blank is downwards stretched by the core body 4 and blown into a bottle body. The core body 4 is arranged on the conveying mechanism, the injection molding half 5 is arranged on the injection molding mechanism, the core body 4 is inserted into a bottle blank formed by processing of the injection molding mechanism and moves synchronously, so that the core body 4 does not need to be pulled out when the bottle blank is transported and serves as a stretching rod when a bottle is stretched and blown, the stretching rod and the stretching mechanism are omitted, the rising distance of the core body 4 is shortened by omitting the action of pulling out the bottle blank, the rising distance of the core body 4 is reduced to half of the original rising distance, half of idle-drawing stroke of the core body 4 is omitted, the processing efficiency is improved by shortening the time length of single injection molding processing, the rising height of the core body 4 is reduced without reserving too much rising space for the core body 4 and the distance of the stretching rod to be inserted into the bottle blank again, the height of the blowing and injection integrated machine is reduced, the transfer of the bottle blank is carried out by utilizing the core body 4, the core body 4 is inserted into the bottle blank, the outer side wall of the core body 4 is matched with the inner side wall of the bottle blank, utilize core 4 to play the effect that supports the design to the bottle base, effectively prevent that the bottle base from taking place the condition of deformation, can maintain the bottle base form through increasing the area of contact between core 4 and the bottle base when utilizing core 4 to transport the bottle base again, prevent that the base body from taking place the condition of deformation, promote to use and experience.

In actual operation, the conveying mechanism comprises a movable table 6, a first lifting assembly 7 for driving the movable table 6 to vertically lift, a second lifting assembly 8 for driving the core 4 to stretch the bottle blank, a limiting assembly for limiting the lifting of the core 4 and a translation assembly 9 for driving the movable table 6 to perform reciprocating translation between the injection molding mechanism and the bottle blowing mechanism, wherein the core 4 is vertically arranged, and the injection molding cavity 2 and the bottle blowing cavity 3 are both provided with upwards-arranged cavities, so that the core 4 can be driven by the first lifting assembly 7, the second lifting assembly 8 and the translation assembly 9 to perform plugging and pulling matching with the injection molding cavity 2 and the bottle blowing cavity 3 and perform reciprocating movement between the injection molding mechanism and the bottle blowing mechanism in a vertical posture. Specifically, the injection molding mechanism, the bottle blowing mechanism and the conveying mechanism realize circular processing through the following steps:

firstly, an injection molding mechanism heats and liquefies raw materials through a charging barrel screw, an injection molding half 5 clamp is in a clamping state, the injection molding half 5 is driven to descend through a half fixing plate 18 and is abutted against the periphery of a cavity opening of an injection molding cavity 2, so that a lower convex rib 16 is vertically inserted into a lower positioning groove 17, and a core body 4 is driven by a second lifting assembly 8 to be positioned at an injection molding station;

secondly, the movable table 6 is driven by the translation assembly 9 to move to the position above the injection molding mechanism, then driven by the first lifting assembly 7 to move downwards, the core 4 at the injection molding station passes through the injection molding half 5 from top to bottom and is inserted into the injection molding cavity 2, at the moment, the limiting ring 19 and the movable table 6 synchronously descend, the limiting ring 19 blocks a gap between the injection molding half 5 and the core 4 through the sealing ring surface 20, so that the core 4, the injection molding cavity 2, the injection molding half 5 and the sealing ring surface 20 are enclosed to form a closed cavity (as shown in fig. 3), and is vertically inserted into the upper positioning groove 15 through the upper convex rib 14 to limit the opening of the injection molding half 5, after the closed cavity is formed, the limiting assembly acts and vertically positions the core 4, so that the core 4 is prevented from moving upwards under the extrusion action of raw materials during injection molding;

thirdly, the injection molding mechanism comprises a hot runner, the liquefied raw materials are injected into a closed cavity under the pushing action of an injection molding oil cylinder, cooling channels for cooling water to flow through are arranged in an injection mold outside the closed cavity and a core body 4, and the raw materials in the closed cavity are cooled and shaped by conveying cooling media to the cooling channels, so that a bottle blank is obtained, the outline of the bottle blank is fixed and is in a softening state, the core body 4 is inserted into the bottle blank, and the blank mouth part of the bottle blank is clamped by an injection molding half 5;

fourthly, the first lifting component 7 and the third lifting component synchronously operate to enable the injection molding half 5 and the core 4 to synchronously ascend until the lower convex rib 16 is vertically separated from the lower positioning groove 17, in the process, the injection molding half 5 is driven by a half fixing plate 18 to move upwards and separate from the cavity opening of the injection molding cavity 2, the injection molding half 5 clamps the bottle blank to ascend, the bottle blank adhered to the inner side wall of the injection molding cavity 2 moves upwards under the pulling action of the injection molding half 5 to enable the inner side wall of the injection molding cavity 2 and the outer side wall of the bottle blank to generate vertical relative sliding, and the core 4 synchronously ascends along with the injection molding half 5, so that the outer side wall of the core 4 is ensured to be tightly adhered to the inner side wall of the bottle blank, and a space is provided for the ascending of the bottle blank;

fifthly, stopping the movement of the third lifting assembly, driving the core body 4 to continuously move upwards by the first lifting assembly 7, continuously lifting the core body 4 until the upper convex rib 14 is vertically separated from the upper positioning groove 15, and in the process, clamping the bottle blank by the injection molding half 5 to vertically limit the bottle blank, lifting the core body 4 and vertically offsetting the bottle blank, wherein at the moment, the core body 4 is not adhered to the outer side wall of the bottle blank any more, the bottle blank is vertically separated from the sealing ring surface 20, but the core body 4 is still inserted into the bottle blank in a tight fit manner;

sixthly, switching the injection molding half 5 from the clamping state to the opening state, so that the injection molding half 5 is separated from the blank opening part of the bottle blank, and the bottle blank is suspended on the bottom of the core body 4 by utilizing the friction force between the bottle blank and the outer side wall of the core body 4;

seventhly, the first lifting component 7 drives the core 4 to move upwards until the core 4 drives the bottle blank to completely separate from the injection molding cavity 2, and then the movable platform 6 is driven by starting the translation component 9 to drive the core 4 to translate from the injection molding mechanism to the bottle blowing mechanism, so that the bottle blank is transferred to the upper part of the bottle blowing cavity 3;

eighthly, closing the bottle blowing mold to form a bottle blowing cavity 3, driving the core body 4 to move downwards by the first lifting assembly 7, enabling the bottle blank to be synchronously inserted into the bottle blowing cavity 3 along with the core body 4, fixing the blank opening of the bottle blank at the cavity opening of the bottle blowing cavity 3, and enabling the bottle blank to be still in a high-temperature softening state;

ninth, the second lifting assembly 8 drives the core 4 to move downwards, the core 4 independently descends relative to the movable table 6, an injection molding station descends to a stretching station, and in the descending process of the core 4, the air blowing holes 22 are communicated with the inner cavity of the bottle blank through the air blowing grooves 21, so that external high-pressure air can be smoothly filled into the inner cavity of the bottle blank, and the bottle blank is blown into a bottle body;

tenth step, the second lifting assembly 8 drives the core 4 to move upwards to the hidden station, so that the core rises and is completely separated from the bottle body, and the bottle body is conveniently separated from the bottle blowing mechanism;

and step ten, the bottle blowing mold is opened and separated from the bottle body, the core body 4 is reset to the injection molding station under the driving of the second lifting assembly 8, the movable table 6 is firstly driven to ascend by the first lifting assembly 7 and enables the core body 4 to be separated from the bottle blowing cavity 3, and then the movable table is driven by the translation assembly 9 to be translated to the injection molding mechanism by the bottle blowing mechanism.

The continuous processing of the injection-stretch bottle blowing integrated machine is realized by circularly carrying out the operations. In the course of working, core 4 carries the bottle base lifting and just can carry out horizontal migration after the bottle base breaks away from injection molding chamber 2, shortens injection molding chamber 2 and carries out the preparation time of the operation of moulding plastics once more through shortening the length of time that the bottle base breaks away from injection molding chamber 2, effectively promotes machining efficiency. The core 4 need not to extract the bottle base, need not to provide the required space of extracting the bottle base for core 4, can effectively save core 4 and extract the required time of bottle base, promotes machining efficiency when long processing through shortening the single, can also effectively reduce the whole height and the required space height of operation of equipment, convenient assembly and use.

In actual operation, the two bottle blowing mechanisms are respectively arranged on two sides of the injection molding mechanism, the conveying mechanism comprises two groups of cores 4 which correspond to the bottle blowing mechanisms one by one, and the cores 4 are arranged in the movable table 6 in a lifting manner so that the cores 4 can synchronously and horizontally move. Specifically, two groups of core bodies 4 are arranged on the movable table 6, and the core bodies 4 can be driven by the same movable table 6 to synchronously translate and lift, so that the two groups of core bodies 4 can alternately acquire bottle blanks formed by injection molding at the injection molding mechanism and convey the bottle blanks to the corresponding bottle blowing mechanism. Specifically, conveying mechanism includes by being row body group and separately put No. 6 both sides of movable table core groups and No. two core groups, and injection moulding mechanism both sides are equipped with respectively with No. one bottle blowing mechanism that core group corresponds and No. two bottle blowing mechanisms that core group corresponds No. two. During operation, firstly, the first core group is inserted into the injection molding cavity 2 and processed to obtain a bottle blank, the second core group is positioned in the bottle blowing cavity 3 of the second bottle blowing mechanism to perform bottle blowing operation, then, the movable table 6 is lifted, so that the first core group and the second core group are lifted and separated from the corresponding injection molding cavity 2 or the bottle blowing cavity 3, then, the second core group is moved to the injection molding mechanism to process to obtain the bottle blank in the unified manner of the movable table 6, the first core group carries the bottle blank which is processed to the first bottle blowing mechanism to perform bottle blowing operation, and the bottle blank which is formed by injection molding is alternately obtained in the injection molding cavity 2 by repeating the operations, and the bottle blowing operation is completed in the conveying manner to the corresponding bottle blowing mechanism by repeating the two groups of cores 4.

In actual operation, the injection molding half 5 comprises two symmetrically arranged clamping plates with clamping openings, the injection molding half 5 can be switched between a clamping state in which the clamping plates are tightly abutted and an opening state in which the clamping plates are separated in a back-to-back manner, and when the injection molding half 5 is switched to the clamping state from the opening state, the clamping openings on the two clamping plates are oppositely butted and form a closed cavity in a surrounding manner with the core body 4 and the injection molding cavity 2. When the injection molding half 5 is switched to an opening state, the clamping plates are separated in a back-to-back mode, so that the injection molding half 5 is separated from the blank opening of the bottle blank, and the core body 4 can be ensured to carry the bottle blank to be separated from the injection molding cavity 2 upwards. When the injection molding of the bottle blank is finished, the injection molding half 5 can be clamped on the blank opening formed by injection molding, the bottle blank is clamped and lifted and is separated from the adhesion of the injection molding cavity 2, and the bottle blank can be ensured to ascend along with the core body 4. The half fixing plate 18 is arranged at the cavity opening of the injection molding cavity 2 in a liftable manner through the third lifting assembly, so that the injection molding half 5 can be lifted under the driving of the half fixing plate 18, the lifting distance of the injection molding half 5 is associated with the depth of the lower convex rib 16 inserted into the lower positioning groove 17, the lower convex rib 16 can be completely separated from the lower positioning groove 17, and the situation that the injection molding half 5 is blocked when opened is prevented.

In actual operation, the chamber 2 of moulding plastics is a plurality of and is row setting, set up on the splint lateral margin in opposite directions a plurality of with mould plastics chamber 2 and correspond one by one's double-layered mouth. In order to promote machining efficiency, the mechanism of moulding plastics promotes machining efficiency through setting up a plurality of injection molding chamber 2 that can mould plastics simultaneously and form the bottle base, specifically speaking, injection molding chamber 2 is row setting for injection molding chamber 2 all is located same straight line, and the injection molding chamber 2 that is located same row all with the cooperation of the same ha fu 5 of moulding plastics, and the ha fu 5 of moulding plastics utilizes rectangular form splint to come to cooperate with each injection molding chamber 2 is unified, can effectively simplify the structure of the ha fu 5 of moulding plastics, still ensures to mould plastics ha fu 5 can cooperate with each injection molding chamber 2 is unified, ensures that the bottle base profile is unified. The bottle blowing mechanism is provided with the bottle blowing cavities 3 with the same number as the injection molding cavities 2, so that the bottle blowing mechanism can process the bottle blank formed by the single processing of the injection molding mechanism at a single time, and the condition that the bottle blank is cooled and hardened due to overlong waiting time for blowing is prevented. In addition, the number of the injection molding cavities 2 is matched with the number of the bottle blowing cavities 3 in a single bottle blowing mechanism, the injection molding mechanism continuously produces bottle blanks and alternately conveys the bottle blanks to the corresponding bottle blowing mechanisms, the injection molding mechanism is provided with a plurality of rows of injection molding cavities 2, the relative positions of the injection molding cavities 2 are matched and correspond to the relative positions of the bottle blowing cavities 3 on each bottle blowing mechanism, and the processing efficiency is improved by increasing the bottle yield of single processing.

In actual operation, core 4 is driven down by first lifting unit 7 and is cooperated with the vertical plug of injection molding chamber 2 and bottle blowing chamber 3 respectively, and core 4 passes through injection molding half 5 and is put the location by spacing subassembly card after inserting injection molding chamber 2 to make core 4, injection molding half 5 and injection molding chamber 2 enclose to close and form and keep apart and supply the airtight cavity that the raw materials perfused with external space. Because the airtight chamber can bear great extrusion effort that comes from the raw materials at the in-process of moulding plastics, in order to ensure that bottle base wall thickness remains stable, need carry out vertical location to the core 4 that is in the station of moulding plastics, prevent that core 4 from taking place the condition of upwards squinting because of extrusion effort is too big, and then prevent that the bottle base wall thickness from increasing because of core 4 upwards squinting, both ensure the product quality, can also effectively save the raw materials quantity. Specifically, the movable table 6 includes the frame, the frame is including roof and the bottom plate that is parallel to each other and vertical branch puts, 8 rigid couplings of second lifting unit are on the frame and order about core 4 through linkage plate 23 at the tensile station of blowing the bottle, enclose the station of moulding plastics that forms airtight cavity and the complete hidden station in movable table 6 between go up and down to switch, spacing subassembly is including the locating part 10 that the linkage plate 23 was put to the card, and when core 4 goes up and down to switch to the station of moulding plastics, the linkage plate 23 was put in the locating part 10 card and make core 4 by vertical location, effectively prevents that core 4 from taking place the condition of upwards squinting. The limiting assembly can be in various structures, including but not limited to the following structures:

structure one, be equipped with the perforation 11 that the cross-section is waist drum-shaped on the linkage board 23, locating part 10 sets up the gag lever post in perforation 11 for liftable ground, the middle part of gag lever post is equipped with spacing face 12 of seting up down, the axial projection of gag lever post lower part district section with the axial projection of perforation 11 matches the axial projection of coincidence and complete cover gag lever post lower part district section to make the gag lever post can switch between the lift station that can completely pass through perforation 11 through the card of spacing face 12 and perforation 11 upper port periphery conflict and gag lever post. The top end of the limiting rod is rotatably connected to the bottom surface of the top plate, and the bottom end of the limiting rod downwards penetrates through the through hole 11 and is rotatably connected to the top surface of the bottom plate, so that the limiting rod can be rotatably switched between a clamping station and a lifting station in the through hole 11. When using, core 4 rises to the station of moulding plastics, the gag lever post can contradict on perforation 11's last port periphery through spacing face 12, make the gag lever post by the centre gripping between roof and gangboard 23, play vertical limiting displacement to core 4, prevent that core 4 from taking place the condition of skew upwards when moulding plastics, when the gag lever post rotates to the lift station, the axial projection of spacing face 12 and gag lever post is complete to fall into in perforation 11, make spacing face 12 can pass through perforation 11 through waist shape hole both sides region, and then make the gag lever post can hide the station, it switches to go up and down between station and the tensile station to mould plastics.

In the second structure, the limiting member 10 is a vertically-arranged baffle (as shown in fig. 7) which can be horizontally inserted between the top plate and the linkage plate 23, and when in use, the baffle moves horizontally and is vertically clamped by the linkage plate 23 and the top plate to limit the upward deviation of the core 4. When the injection molding machine is used, the baffle can be switched between a clamping position with vertical projection and the top plate and the linkage plate 23 vertically coincident at the same time and a lifting position with vertical projection and the top plate or the linkage plate 23 not coincident with each other, when the baffle is positioned at the clamping position, the extrusion acting force received by the core 4 can sequentially pass through the linkage plate 23, the baffle and the top plate are transmitted to the movable template 13 of the injection molding machine, the baffle and the top plate are received and born by the first lifting assembly 7, the core 4 is ensured to be stably inserted into the injection molding cavity 2, after the injection molding is completed, the baffle is restored to the lifting position, the linkage plate 23 is enabled to lift and is not idle any more, and the core 4 can freely lift under the driving of the second lifting assembly 8.

The limiting component includes, but is not limited to, the above two structures, and other limiting structures capable of preventing the core 4 from deviating upwards during injection molding should also be regarded as specific embodiments of the present invention.

In actual operation, the translation assembly 9 is a translation oil cylinder horizontally arranged, a cylinder body of the translation oil cylinder is fixedly connected with a movable template 13 of the injection molding machine, a telescopic part is fixedly connected with the movable table 6, the translation assembly 9 drives the core body 4 to horizontally move through the movable table 6, the translation assembly 9 comprises a slide rail arranged on the movable template 13 of the injection molding machine and a slide block arranged on a top plate of the movable table 6, the slide block horizontally slides along the slide rail so that the movable table 6 drives the core body 4 to reciprocate between the injection molding mechanism and the bottle blowing mechanism, the slide rails are two and are respectively arranged on the movable template 13 of the injection molding machine, and at least four slide blocks are arranged on the movable table 6 and respectively correspond to the slide rail so that the movable table 6 can horizontally move in a horizontal posture and the core body 4 is ensured to be always kept in a vertical posture.

In actual operation, the first lifting assembly 7 comprises a vertically arranged first oil cylinder, a cylinder body of the first oil cylinder is fixedly connected with the rack 1, the telescopic part is fixedly connected with the movable template 13 of the injection molding machine, and the first oil cylinder drives the movable template 13 of the injection molding machine to lift so as to enable the translation assembly 9, the movable table 6 and the core body 4 to lift synchronously. The second lifting assembly 8 comprises a vertically arranged second oil cylinder, the body of the second oil cylinder is fixedly connected with the bottom plate of the movable table 6, and the telescopic portion drives the core body 4 to lift. The first lifting assembly 7, the second lifting assembly 8, the third lifting assembly and the translation assembly 9 may also be driven by using an air cylinder, a lead screw and the like, besides the oil cylinder, and all should be regarded as specific embodiments of the present invention.

In actual operation, in order to improve the resistance of the injection molding half 5 to the extrusion acting force during injection molding, the top surface and the top surface of the injection molding half 5 are respectively provided with the upper positioning groove 15 and the lower positioning groove 17 (as shown in fig. 4), the outer edge of the bottom surface of the limiting ring 19 and the periphery of the cavity opening of the injection molding cavity 2 are respectively provided with the upper convex rib 14 and the lower convex rib 16, and the injection molding half 5 clamp is stably clamped in a clamping state through vertical splicing between the upper positioning groove 15 and the upper convex rib 14 and between the lower positioning groove 17 and the lower convex rib 16, so that the extrusion acting force from raw materials is effectively resisted. Specifically, the bottom surface of the injection molding half 5 and the cavity opening of the injection molding cavity 2 are respectively provided with a lower positioning groove 17 and a lower convex rib 16 which can be vertically plugged and pulled out, the injection molding half 5 is arranged at the cavity opening of the injection molding cavity 2 through a liftable half fixing plate 18, and when the injection molding half 5 clamp is in a clamping state from an opening state, the half fixing plate 18 drives the injection molding half 5 clamp to move downwards and is sleeved on the lower convex rib 16 through the lower positioning groove 17, so that the injection molding half 5 clamp is clamped and positioned in the clamping state. The bottom rigid coupling of activity platform 6 has spacing ring 19, 19 bottom surface inner edges of spacing ring form the sealed anchor ring 20 that can shutoff core 4 and mould plastics ha fu 5 interval, 19 bottom surface outer fringe is equipped with overhead protruding muscle 14, the top surface of moulding plastics ha fu 5 is equipped with overhead constant head tank 15, and when the activity platform 6 whereabouts and orders about core 4 to insert injection molding chamber 2, overhead protruding muscle 14 vertically inserts overhead constant head tank 15 to make mould plastics ha fu 5 by the card location in the clamping condition.

In practical operation, the limiting ring 19 is fixedly connected to the movable table 6, the core body 4 is hermetically inserted into the limiting ring 19, so that the core body 4, the limiting ring 19, the injection molding half 5 and the injection molding cavity 2 are concentrically arranged, and the outline of the closed cavity is effectively limited to ensure that the bottle blank formed by injection molding has a uniform outline. Specifically, when the core 4, the injection molding cavity 2 and the injection molding half 5 enclose to form a closed cavity, the outer side wall of the core 4 is tightly attached to the inner side wall of the limiting ring 19, so that the limiting ring 19 and the core 4 are arranged concentrically; the bottom surface of the limiting ring 19 is abutted against the top surface of the injection molding half 5 and is vertically inserted into the upper positioning groove 15 through the upper convex rib 14, so that the limiting ring 19 and the injection molding half 5 are concentrically arranged; the bottom surface of the injection molding half 5 is tightly abutted to the periphery of the cavity opening of the injection molding cavity 2 and vertically sleeved on the lower convex rib 16 through the lower positioning groove 17, so that the injection molding half 5 and the injection molding cavity 2 are concentrically arranged. Because the core 4 and the spacing ring 19 are arranged concentrically, the spacing ring 19 and the injection molding half 5 are arranged concentrically, and the injection molding half 5 and the injection molding cavity 2 are arranged concentrically, the core 4 is arranged concentrically with the injection molding half 5 and the injection molding cavity 2 under the driving of the movable table 6 to form a closed cavity, so that the bottle blank formed by injection molding has uniform contour dimension and wall thickness, and the quality of the bottle blank is effectively ensured.

In actual operation, the diameter of the inner side wall of the limiting ring 19 is matched with the diameter of the outer side wall of the core 4, so that the limiting ring 19 and the core 4 are in sealed sleeve joint, the connection sealing performance between the limiting ring 19 and the core 4 is ensured, the limiting ring 19 can also be used for guiding the core 4 to lift, and the core 4 can be ensured to freely lift along the axis of the limiting ring 19.

In actual operation, the outer side wall of the core 4 forms an annular blowing groove 21 (as shown in fig. 5) through a recess, the limiting ring 19 is provided with blowing holes, when the core 4 is at an injection molding station or a hidden station, the blowing grooves 21 are located above the blowing holes and are isolated from each other, and when the core 4 is at a stretching station, the blowing holes 22 are communicated with the closed chamber through the blowing grooves 21, so that the bottle blank is blown into a bottle body. The gas blowing groove 21 is arranged on a local section of the outer side wall of the core body 4, so that the function of blowing gas into the inner cavity of the bottle blank when the core body 4 is at a specific station is realized. During injection molding, the inner side wall of the limiting ring is in sealing fit with the outer side wall of the core body, the core body is prevented from being deviated in the radial direction, the core body descends to a stretching station when bottle blowing is conducted, the diameter of the core body is reduced, high-pressure air in the air blowing hole can be blown to the inner cavity of the bottle blank through the air blowing groove, and stretching and blowing are achieved. Specifically, when the core 4 is at the hiding station, the injection station and goes up and down between the hiding station and the injection station, the air blowing groove 21 is hidden in the limiting ring 19, so that the air blowing groove 21 is not communicated with the inner cavity of the bottle blank; when the core 4 is at the stretching station and is lifted and lowered between the injection station and the stretching station (as shown in fig. 6), the blowing holes 22 are communicated with the inner cavity of the bottle preform through the blowing grooves 21, so that the bottle preform is blown into a bottle body after receiving high-pressure air from the blowing holes 22.

In actual operation, the air blowing grooves 21 are annular and are formed along the circumferential direction of the outer side wall of the core body 4, high-pressure air in the air blowing holes 22 can be diffused in the circumferential direction through the air blowing grooves 21, so that uniform high-pressure air can be obtained in all circumferential regions of the inner cavity of the bottle blank, vertical diffusion can be achieved through the air blowing grooves 21, uniform high-pressure air can be obtained in all height sections of the inner cavity of the bottle blank, and bottle blowing quality is ensured. Specifically, the notches of the air blowing grooves are radially and outwards arranged on the outer side wall of the zeer body, the top edge portions and the bottom edge portions of the air blowing grooves are evenly and smoothly connected with corresponding sections of the outer side wall of the core body, abrasion of the core body and parts sleeved on the core body during lifting is effectively avoided, and maintenance cost is reduced. The depth of the air blowing groove is 0.5mm-1mm, so that the high-pressure air flow can meet the requirement of blowing the bottle body, the radial deviation of the core body can be limited through the limiting ring, and the quality of the bottle body is ensured.

In actual operation, a bottle blowing half is arranged at the opening of the bottle blowing cavity 3, and after the bottle blank is inserted into the bottle blowing cavity, the bottle blowing half is switched to a clamping state and clamps the blank opening part of the bottle blank, so that the bottle blowing cavity 3 is blocked by the core body and the bottle blowing half.

Claims (10)

1. An injection-stretch-blow-bottle-blowing integrated machine comprises a machine frame (1), wherein an injection molding mechanism with an injection molding cavity (2), a bottle blowing mechanism with a bottle blowing cavity (3) and a conveying mechanism are arranged on the machine frame (1), and the injection-stretch-blow-bottle-blowing integrated machine is characterized in that the conveying mechanism comprises a liftable core body (4), a liftable injection molding half (5) is arranged at a cavity opening of the injection molding cavity (2), the core body (4) downwards penetrates through the injection molding half (5) and is inserted into the injection molding cavity (2) to form a bottle blank through injection molding, the injection molding half (5) is opened after driving the bottle blank upwards to be separated from the wall surface of the injection molding cavity (2), and the core body (4) carries the bottle blank to be separated from the injection molding cavity (2) and then to be moved into the bottle blowing cavity (3) so that the bottle blank is downwards stretched by the core body (4) and blown into a bottle body.

2. The integrated machine for injection, stretch and blow molding according to claim 1, wherein the core (4) is vertically arranged, the conveying mechanism comprises a movable table (6), a first lifting component (7) driving the movable table (6) to vertically lift, a second lifting component (8) driving the core body (4) to stretch the bottle blank, a limiting component limiting the lifting of the core body (4) and a translation component (9) driving the movable table (6) to translate in a reciprocating mode between the injection molding mechanism and the bottle blowing mechanism, the core body (4) is respectively matched with the injection molding cavity (2) and the bottle blowing cavity (3) in a vertical plugging mode under the driving of the first lifting component (7), the core body (4) penetrates through the injection molding half (5) and is clamped and positioned by the limiting component after being inserted into the injection molding cavity (2), so that the core body (4), the injection molding half (5) and the injection molding cavity (2) are enclosed to form a closed cavity which is isolated from the external space and is used for filling raw materials.

3. The injection, pull and bottle blowing integrated machine according to claim 2 is characterized in that the movable table (6) comprises a frame, the second lifting assembly (8) is fixedly connected to the frame and drives the core (4) to be lifted and lowered among a stretching station for blowing the bottle body, an injection molding station for enclosing to form a closed chamber and a hidden station completely hidden in the movable table (6) through a linkage plate (23), the limiting assembly comprises a limiting part (10) for clamping the linkage plate (23), and when the core (4) is lifted and lowered to be switched to the injection molding station, the limiting part (10) is clamped on the linkage plate (23) and enables the core (4) to be vertically positioned.

4. An injection stretch blow molding machine according to claim 3, wherein the frame comprises a top plate and a bottom plate which are parallel and vertically separated from each other, the limiting member (10) is a vertically-arranged baffle plate which can be horizontally inserted between the top plate and the linkage plate (23), and when in use, the baffle plate moves horizontally and is vertically clamped by the linkage plate (23) and the top plate to limit the upward deviation of the core body (4).

5. The all-in-one machine for injection, pull and bottle blowing according to claim 3, wherein the linkage plate (23) is provided with a through hole (11) with a waist drum-shaped cross section, the limiting member (10) is a limiting rod arranged in the through hole (11) in a lifting manner, a downward limiting surface (12) is arranged in the middle of the limiting rod, and the axial projection of the lower section of the limiting rod is matched and superposed with the axial projection of the through hole (11) and completely covers the axial projection of the lower section of the limiting rod, so that the limiting rod can be switched between a clamping station where the limiting surface (12) is abutted against the periphery of the upper port of the through hole (11) and a lifting station where the limiting rod can completely pass through the through hole (11).

6. The injection, drawing and bottle blowing integrated machine according to claim 2, wherein the translation assembly (9) is a translation oil cylinder horizontally arranged, a cylinder body of the translation oil cylinder is fixedly connected with a movable template (13) of an injection molding machine, a telescopic part is fixedly connected with a movable table (6), and the translation assembly (9) drives the core body (4) to horizontally move through the movable table (6); or the first lifting assembly (7) comprises a first oil cylinder which is vertically arranged, the cylinder body of the first oil cylinder is fixedly connected with the rack (1), the telescopic part is fixedly connected with the movable template (13) of the injection molding machine, and the first oil cylinder drives the movable template (13) of the injection molding machine to lift so as to synchronously lift the translation assembly (9), the movable table (6) and the core body (4); or the translation assembly (9) comprises a slide rail arranged on a movable template (13) of the injection molding machine and a slide block arranged on a top plate of the movable table (6), and the slide block horizontally slides along the slide rail so that the movable table (6) drives the core body (4) to reciprocate between the injection molding mechanism and the bottle blowing mechanism; or the second lifting assembly (8) comprises a vertically arranged second oil cylinder, the body of the second oil cylinder is fixedly connected with the bottom plate of the movable table (6), and the telescopic part drives the core body (4) to lift.

7. The all-in-one machine for injection, stretch and blow molding according to claim 2 is characterized in that the axis of the injection molding cavity (2) is vertically arranged and is provided with an upward cavity opening, the bottom surface of the injection molding half (5) and the cavity opening of the injection molding cavity (2) are respectively provided with a lower positioning groove (17) and a lower convex rib (16) which can be vertically inserted and pulled out, the injection molding half (5) is arranged at the cavity opening of the injection molding cavity (2) through a liftable half fixing plate (18), and when the injection molding half (5) clamp is in a clamping state from an opening state, the half fixing plate (18) drives the injection molding half (5) clamp to move downwards and is sleeved on the lower convex rib (16) through the lower positioning groove (17), so that the injection molding half (5) clamp is clamped and positioned in the clamping state.

8. The all-in-one machine for injection, stretch and blow molding according to claim 3, wherein a limiting ring (19) is fixedly connected to the bottom of the movable table (6), a sealing ring surface (20) capable of plugging a gap between the core body (4) and the injection molding half (5) is formed at the inner edge of the bottom surface of the limiting ring (19), an upper protruding rib (14) is arranged at the outer edge of the bottom surface of the limiting ring (19), an upper positioning groove (15) is arranged on the top surface of the injection molding half (5), and when the movable table (6) falls and drives the core body (4) to be inserted into the injection molding cavity (2), the upper protruding rib (14) is vertically inserted into the upper positioning groove (15) so that the injection molding half (5) is clamped and positioned.

9. The integrated machine for injection, stretch and blow molding according to claim 8, wherein the diameter of the inner side wall of the limiting ring (19) is matched with the diameter of the outer side wall of the core body (4) so that the two are hermetically sleeved; or, the outer side wall of the core body (4) forms an annular air blowing groove (21) through a recess, a blowing hole is formed in the limiting ring (19), the core body (4) is positioned at an injection molding station or a hidden station, the air blowing groove (21) is positioned above the blowing hole and isolated from each other, and when the core body (4) is positioned at a stretching station, the air blowing hole (22) is communicated with the closed cavity through the air blowing groove (21) so that the bottle blank is blown into a bottle body.

10. The all-in-one machine for injection, pull and bottle blowing according to any one of claims 2 to 9, wherein the bottle blowing mechanisms are two and are respectively arranged at two sides of the injection molding mechanism, the conveying mechanism comprises two groups of cores (4) which correspond to the bottle blowing mechanisms one by one, and the cores (4) are arranged in the movable table (6) in a lifting way so that the cores (4) can synchronously and horizontally move; or the number of the injection molding cavities (2) is matched with that of the bottle blowing cavities (3) in the single bottle blowing mechanism, and the injection molding mechanism continuously produces bottle blanks and alternately conveys the bottle blanks to the corresponding bottle blowing mechanisms; or a plurality of rows of injection molding cavities (2) are arranged on the injection molding mechanism, and the relative positions of the injection molding cavities (2) are matched and correspond to the relative positions of the bottle blowing cavities (3) on each bottle blowing mechanism.

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