CN215512224U - Injection bottle blank molding machine - Google Patents

Abstract

The utility model relates to a machine for molding a preform of an injection molding bottle. The existing injection molding bottle blank molding machine has low efficiency and influences use experience. The injection molding machine comprises a frame and a conveying mechanism, wherein the conveying mechanism can drive a bottle blank to move from an injection molding station to a blank removing station, an injection molding cavity is arranged at the injection molding station, the conveying mechanism comprises a core body and a half clamp, the core body is vertically inserted into the injection molding cavity and is enclosed with the half clamp to form a closed cavity, when the produced bottle blank rises, only the height of the injection molding cavity is required to be lifted, a space can be reserved for the movable table to transversely move the core body, the half clamp and the bottle blank, the half clamp drives the bottle blank to be separated from the core body when moving to the blank removing station, and the core body and the half clamp synchronously move and cool and shape the bottle blank before moving to the blank removing station for blank removal. The core and the half clamp can move synchronously, so that the distance between the core and a bottle blank pulled upwards at an injection molding station can be saved, the processing efficiency is improved, the height of an injection molding bottle blank molding machine can be reduced, the core can be used for continuously cooling and shaping the bottle blank, the quantity of waste products is reduced, and the production capacity is improved.

Description

Injection bottle blank molding machine

Technical Field

The utility model relates to the field of injection molding, in particular to an injection molding bottle blank molding machine.

Background

The existing injection molding bottle blank molding machine has the bottle blank injection molding function, can process particle raw materials into bottle blanks convenient to transport, is convenient to transport, and saves transportation cost. Compared with bottle body transportation, the bottle blank transportation has the advantage of low transportation cost. The prior injection bottle blank molding machine comprises a frame, an injection molding mechanism, a blank receiving mechanism and a conveying mechanism, wherein the injection molding mechanism, the blank receiving mechanism and the conveying mechanism are arranged on the frame, the injection molding mechanism forms an injection molding station for forming a bottle blank through injection molding, the blank receiving mechanism forms a blank releasing station for receiving the bottle blank, and the conveying mechanism conveys the bottle blank processed and formed at the injection molding station to the blank releasing station and is received by the blank receiving mechanism.

Specifically, the injection molding mechanism is in a horizontal layout, the injection molding mechanism comprises an injection molding cavity and a core body which can be inserted into the injection molding cavity, and the conveying mechanism comprises a half clamp which can clamp a bottle blank at a cavity opening of the injection molding cavity. During injection molding, the core body is horizontally inserted into the injection molding cavity and is enclosed to form a closed cavity, and the injection molding mechanism injects liquefied raw materials into the closed cavity to form a bottle blank. After injection molding is finished, the bottle blank is separated along with the core body towards the direction back to the injection molding cavity, so that the bottle blank is completely separated from the injection molding cavity, a blank removing space for the half clamp to move in is formed between the injection molding cavity and the bottle blank, the bottle blank is separated from the core body by clamping the bottle blank after the half clamp moves to the blank removing space, and the bottle blank is carried away from the blank removing space by the half clamp after the core body is completely separated; the external transfer mechanism is sleeved on the bottle blank through the cooling barrel, so that the bottle blank is cooled and shaped when being moved away from the blank removing space by the transfer mechanism. In this structure, the core breaks away from the injection molding chamber and forms the knockout space through horizontal migration, both can lead to the mechanism of moulding plastics once to mould plastics long required long increase because of the core migration distance is long, low in production efficiency increases the processing cost, still can lead to the frame size to increase because of the core needs great space that opens and shuts, and then need reserve great arrangement space for the bottle base mould machine of moulding plastics, increase the cost of the required raw materials of equipment production, can lead to the bottle base to take place the condition of collision deformation when breaking away from the core because of the cooling is not in place before transporting to the knockout station, lead to the waste product increase in quantity.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides an injection bottle blank molding machine, wherein a core body and a half clamp are arranged on a conveying mechanism, and after injection molding is finished, the axial dimension distance of an injection molding cavity is synchronously moved to a blank stripping station along with a bottle blank and the core body, so that the processing efficiency is effectively improved, the equipment dimension and the occupied area can be reduced, the injection molding operation and the cooling demolding operation can be alternately carried out on the bottle blank, the product quality is ensured, and the production benefit is improved.

The utility model is realized by the following modes: the utility model provides an injection molding bottle base molding machine, includes the frame and sets up the conveying mechanism in the frame, conveying mechanism can order about the bottle base and move to the knockout station by the station of moulding plastics, the station department of moulding plastics is equipped with the chamber of moulding plastics, conveying mechanism includes axial reciprocating motion's core and the huff clamp that can open and shut and switch, and the core axial inserts the chamber of moulding plastics and closes the airtight cavity that forms the bottle base of moulding plastics with the huff clamp encirclement, and the huff clamp centre gripping is moulded plastics the bottle base that forms and is driven about bottle base and core and break away from when removing to the knockout station, and core and huff clamp synchronous motion are carried out the cooling setting to the bottle base continuously before removing to the knockout station knockout. The core body is arranged on the conveying mechanism, the core body and the injection molding cavity are enclosed by the half clamp to form a closed space for injection molding bottle blanks, the core body and the injection molding cavity can synchronously move to a blank stripping station along with the bottle blanks after injection molding is completed, the action that the core body is axially pulled away from the bottle blanks at the injection molding station can be omitted, the processing efficiency is improved by shortening the time of single processing, the production benefit is improved, the size of an injection molding bottle blank molding machine can be reduced by reducing the space reserved for core body movement, the transportation and arrangement are convenient, the cost of raw materials required by production equipment is reduced, the core body can be used for cooling and shaping the bottle blanks, the structural strength when the bottle blanks are stripped can deal with the impact when the bottle blanks fall, the condition that the bottle blanks are deformed due to collision is prevented, and the quantity of waste products is reduced. The core body can begin to cool the bottle blank when the bottle blank is separated from the injection molding cavity until the bottle blank is separated from the core body. The cooling tank is arranged outside the injection molding cavity, so that the time for transferring the bottle blank from the injection molding station to the blank removing station is effectively utilized, and the time for single processing cannot be increased.

Preferably, the core is vertically arranged, the conveying mechanism comprises a movable table fixedly connected with the core, a first lifting assembly for driving the movable table to vertically lift and a translation assembly for driving the movable table to horizontally move, and the core is driven by the movable table to be matched with the injection molding cavity in a vertical plugging mode and is translated to the knockout station after being pulled out of the injection molding cavity. The core and the movable table are fixedly connected, and the movable table is driven to synchronously move the core, so that the purpose of driving the core to move along a preset path is achieved. Specifically, the first lifting assembly plays a role in driving the movable table to lift, so that the core body can lift under the driving of the movable table, the core body can be switched between an insertion station inserted into the injection molding cavity and a pulling station pulled out of the injection molding cavity, and the bottle blank is ensured to be separated from the injection molding cavity; the translation subassembly plays the effect of ordering about the movable table horizontal migration for the core can order about at the movable table and carry out the translation, so that the core can be at the station of moulding plastics and take off the base station within a definite time reciprocating translation, ensures that the bottle base is carried to the knockout station by the accuracy.

Preferably, the bottom of the movable table is provided with a second lifting component for driving the half clamp to lift, and the bottle blank is driven by the half clamp to move downwards and separate from the core body when moving to the blank removing station. The second lifting unit is installed between the movable table and the half clamp, can order about the relative movable table of the half clamp to independently lift for supporting with the movable table, make the half clamp can carry out lifting operation relative to the core, can order about bottle base and core and take place vertical skew, make things convenient for bottle base and core to break away from, can also control overhead protruding muscle to insert overhead constant head tank and restrict the half clamp and open, airtight cavity keeps sealed when guaranteeing to mould plastics.

As preferred, the chamber of moulding plastics is a plurality of and is row setting, the huff clamp includes the splint that the bisymmetry set up, set up on splint lateral margin in opposite directions a plurality of with mould plastics the chamber and correspond one by one press from both sides the mouth, the huff clamp can switch between the clamping state that splint closely contradict and the opening state of splint back to the separation, when the huff clamp switches to clamping state by opening state, press from both sides the mouth and correspond core and mould plastics the chamber and enclose and close and form airtight cavity. Because bottle base diameter cross-section is little, the mechanism of moulding plastics can increase single workable bottle base quantity through setting up a plurality of injection molding cavities that are row setting, effectively promotes production efficiency, reduction in production cost. Half clamp includes two splint that can open and shut, and two splint are through the double-layered mouth centre gripping bottle base that corresponds, and the drive structure that the existing effect was simplified half pressed from both sides, reduce equipment cost still ensures that the bottle base of batch production can be transported by synchronous centre gripping, ensures half press from both sides operational reliability, promotes and uses experience.

Preferably, the periphery of the opening of the injection molding cavity is provided with an upward raised lower convex rib, the bottom surface of the half clamp is provided with a lower positioning groove, and when the half clamp, the core body and the injection molding cavity are enclosed to form a closed cavity, the lower convex rib is vertically inserted into the lower positioning groove, so that the half clamp is positioned in a clamping state and is concentric with the injection molding cavity. When the half clamp, the core body and the injection molding cavity are enclosed to form the closed cavity, the bottom surface of the half clamp can abut against the periphery of the cavity opening of the injection molding cavity, the lower convex rib is vertically inserted into the lower positioning groove, so that the sealing between the periphery of the cavity opening of the half clamp and the periphery of the cavity opening of the injection molding cavity can be ensured, the raw material leakage during injection molding is prevented, the opening prevention effect can be achieved on the half clamp, the pressure from liquefied raw materials during injection molding can be effectively resisted by the half clamp, and the contour of the closed cavity is ensured to be kept unchanged.

Preferably, the second lifting assembly comprises a vertically arranged second oil cylinder, a cylinder body of the second oil cylinder is fixedly connected with the movable table, the telescopic rod is fixedly connected with the half fixing plate, and the second oil cylinder drives the half clamp to lift relative to the movable table through the half fixing plate. The cylinder body of the second oil cylinder is fixedly connected with the movable table, so that the second oil cylinder can lift the half clamp on the basis of the movable table, and further control the plugging relation between the upper convex rib and the upper positioning groove, the opening limiting function can be achieved on the half clamp after the upper convex rib is inserted into the upper positioning groove, the half clamp can be conveniently opened and separated from the bottle blank after the upper convex rib is pulled out of the upper positioning groove, and the bottle blank can be separated from the conveying mechanism at a blank stripping station.

Preferably, the first lifting assembly is a vertically arranged first oil cylinder, a cylinder body of the first oil cylinder is fixedly connected with the support, the telescopic rod is fixedly connected with the movable template of the injection mold, and the first oil cylinder drives the movable template of the injection mold to lift so as to enable the translation assembly and the movable platform to lift synchronously and drive the core body to lift and switch between an insertion station which is inserted into the injection molding cavity downwards and a pulling-out station which is separated from the injection molding cavity upwards. The cylinder body rigid coupling of first hydro-cylinder is in the frame for first hydro-cylinder can order about the mobile template of injection mould on the basis of the frame and go up and down, and then carries out synchronous lifting control to translation subassembly, movable table, huff clamp and core through the mobile template of injection mould that goes up and down. The half clamp can realize the plugging and pulling switching between the lower convex rib and the lower positioning groove through the lifting of the relative injection molding cavity, can play a role in limiting the opening of the half clamp after the lower convex rib is inserted into the lower positioning groove, and can be conveniently opened and separated from a bottle blank after the lower convex rib is pulled out of the lower positioning groove, so that the bottle blank can be separated from the conveying mechanism at a blank stripping station.

Preferably, the translation assembly is fixedly connected to the movable template of the injection mold, the translation assembly is a translation oil cylinder horizontally arranged, a cylinder body of the translation oil cylinder is fixedly connected to the movable template of the injection mold, the telescopic rod is fixedly connected to the movable table, and the translation assembly drives the movable table to move horizontally. The cylinder body rigid coupling of translation hydro-cylinder is on injection mold mobile template for the translation hydro-cylinder can order about movable table, core and huff clamp on the basis of injection mold mobile template and reciprocate the translation between station and knockout station, and then realizes the reciprocal bottle base of circulation and transports the action, effectively promotes production efficiency.

Preferably, the translation assembly comprises a slide rail arranged on the movable template of the injection mold and a slide block arranged on the movable table, and the slide block horizontally slides along the slide rail so that the movable table drives the core body to perform reciprocating translation between the injection molding station and the knockout station. The slide rail plays the spacing effect of guide to the slider, ensures that the movable table can follow preset path reciprocating motion, and then ensures that core and huff clamp can follow the accurate translation of movable table.

Preferably, the core is vertically inserted into the injection molding cavity and is clamped and positioned by the limiting assembly, the limiting assembly comprises a limiting ring fixedly connected to the movable table, and the outer side wall of the core is tightly attached to the inner side wall of the limiting ring so as to reduce radial deviation of the core when the bottle blank is injected. The limiting ring is sleeved on the core body and fixedly connected with the movable table, the top end of the core body is fixedly connected with the movable table, the middle outer side wall is tightly attached to the inner side wall of the limiting ring, the middle section of the core body is radially limited by the limiting ring, the core body is ensured to be always kept in a vertical posture, the radial offset of the core body during injection molding is effectively reduced, and then the wall thickness of each region of the bottle blank is ensured to meet the preset requirement, and the product quality is ensured.

Preferably, the bottom of the limiting ring extends downwards to form an upper protruding rib, an upper positioning groove is formed in the top surface of the half clamp, when the half clamp, the core body and the injection molding cavity are enclosed to form a closed cavity, the upper protruding rib is vertically inserted into the upper positioning groove, and the inner side wall of the limiting ring is tightly attached to the outer side wall of the core body, so that the half clamp and the core body are arranged concentrically. When the huff clamp drives the second lifting component to ascend, the upward convex ribs are inserted into the upward positioning grooves, so that the huff clamp can effectively deal with the pressure from the liquefied raw material, and the contour of the closed cavity is ensured to be stable.

Preferably, the outer side wall of the core body is provided with a sealing ring surface which is exposed downwards, and when the core body is inserted into the injection molding cavity, the sealing ring surface is tightly lapped on the top surface of the half clamp from top to bottom, so that the core body is in sealing connection with the half clamp through the sealing ring surface. The core is driven down at first lifting unit and is inserted the chamber of moulding plastics after, and the hafu clamp is held between the accent in spacing ring and the chamber of moulding plastics, and the sealing ring face overlap joint of core is on the last port periphery of pressing from both sides the mouth and is enclosed with the chamber of moulding plastics and form airtight cavity.

Preferably, a cooling pipeline is arranged in the core body along the axial direction of the core body, a cooling water tank is arranged outside the injection molding cavity, and cooling media flowing through the cooling pipeline and the cooling water tank absorb heat in the injection molding cavity so that the bottle blank is cooled and shaped during production. Be equipped with the cooling tube who supplies the coolant to flow in the core, during the use, the bottle base of accomplishing the moulding plastics is with heat transfer to the core on, and coolant flows through cooling tube and takes away the heat on the core for the bottle base can be taken away and cool off the design because of the heat by coolant. The cooling medium continuously flows in the cooling pipeline, so that the bottle blank can be continuously cooled before being separated from the core body at the blank removing station, and the time for transferring the bottle blank is effectively utilized to carry out cooling and shaping operation on the bottle blank.

Preferably, the two knockout stations are respectively arranged at two sides of the injection molding station, the conveying mechanism comprises two groups of cores fixedly connected with the movable table, and the cores are alternately inserted into the injection molding cavity and are subjected to injection molding to form bottle blanks which can be conveyed to the corresponding knockout stations. The mechanism of moulding plastics forms bottle base required time of moulding plastics, with bottle base cooling and remove to knockout station also required time, press from both sides come with the chamber cooperation in turn of moulding plastics through setting up two sets of cores and two sets of ha fu, and carry in turn and carry out the knockout operation to the knockout station of both sides, can make the chamber of moulding plastics carry out continuous injection moulding, effectively promote the machining efficiency of the mechanism of moulding plastics, can also come alternative receiving processing to form the bottle base through setting up two knockout stations, prevent that the bottle base from pressing from both sides with ha fu when the cooling is not thorough and falling and taking place the condition that the striking warp. Two sets of cores rigid coupling are on same movable table for two sets of cores simultaneous movement effectively simplifies the transport mechanism structure, promotes the operational reliability and reduces production facility's cost. When one group of cores moves to the blank stripping station, the other group of cores moves to the injection molding station, so that the two groups of cores can move back and forth between the injection molding station and the corresponding blank stripping station in a staggered manner.

Preferably, a cooling water tank is arranged below the blank removing station, the bottle blanks are separated from the core body and fall into the cooling water tank, so that the bottle blanks are continuously cooled, cooling water is stored in the cooling water tank, the falling bottle blanks can be received by the cooling water, deformation and adhesion of the bottle blanks due to impact on hard objects are prevented, the bottle blanks can be continuously cooled by the cooling water, and the structural strength of the bottle blanks is effectively improved.

Preferably, a cooling fan is arranged below the blank removing station, the cooling fan forms cooling air flow, and the bottle blanks are contacted with the cooling air flow and are continuously cooled. The cooling fan can flow to the bottle base through driving peripheral low temperature air, and then takes away the heat of adhering to on the bottle base, promotes its structural strength through reducing the bottle base temperature, and then promotes the productivity effect.

The utility model has the beneficial effects that: the core body is arranged on the conveying mechanism, the core body and the injection molding cavity are enclosed by the half clamp to form a closed space for injection molding bottle blanks, the core body can be synchronously moved to a blank stripping station along with the bottle blanks after injection molding is completed, the action that the core body is upwards pulled away from the bottle blanks at the injection molding station can be omitted, the processing efficiency is improved by shortening the time of single processing, the height of an injection molding bottle blank molding machine can be reduced by reducing the space reserved for core body lifting, the transportation and arrangement are convenient, the cost of raw materials required by production equipment is reduced, the bottle blanks can be cooled and shaped by utilizing the core body, the structural strength when the bottle blanks are stripped can deal with the impact when the bottle blanks fall, the condition that the bottle blanks are collided, deformed and adhered is prevented, and the quantity of waste products is reduced.

Drawings

FIG. 1 is a schematic view, partially in section, of a core of the injection bottle blank molding machine in an insertion station;

FIG. 2 is a schematic view of a partial cross-sectional structure of the core, the injection molding cavity and the half clamp when they are enclosed to form a closed chamber;

FIG. 3 is a schematic view of a partial cross-sectional structure of the core of the injection bottle blank molding machine at a pull-out station;

FIG. 4 is a schematic top view of the half clamp in a clamping position;

in the figure: 1. the injection molding machine comprises a rack, 2, a conveying mechanism, 3, an injection molding station, 4, a blank stripping station, 5, an injection molding cavity, 6, a core body, 7, a half clamp, 8, a movable table, 9, a clamping plate, 10, a clamping opening, 11, a lower convex rib, 12, a lower positioning groove, 13, a first lifting assembly, 14, a second lifting assembly, 15, a translation assembly, 16, an injection molding machine movable template, 17, a limiting ring, 18, an upper positioning groove, 19, an upper convex rib, 20, a half fixing plate, 21, a sealing ring surface, 22 and a cooling pipeline.

Detailed Description

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

As shown in fig. 1 and 2, the injection molding bottle blank molding machine comprises a frame 1 and a conveying mechanism 2 arranged on the frame 1, wherein the conveying mechanism 2 can drive a bottle blank to move from an injection molding station 3 to a blank removing station 4, an injection molding cavity 5 is arranged at the injection molding station 3, the conveying mechanism 2 comprises a core body 6 capable of vertically lifting and a half clamp 7 capable of being opened and closed and switched, the core body 6 is vertically inserted into the injection molding cavity 5 and is enclosed with the half clamp 7 to form a closed cavity of the injection molding bottle blank, the half clamp 7 clamps the injection molding formed bottle blank and drives the bottle blank to be separated from the core body 6 when moving to the blank removing station 4, and the core body 6 and the half clamp 7 synchronously move and cool and shape the bottle blank before moving to the blank removing station 4 for blank removing. The core body 6 is arranged on the conveying mechanism 2, the core body 6, the injection molding cavity 5 and the half clamp 7 are enclosed to form a closed space for injection molding bottle blanks, and the injection molding bottle blanks can be moved to the blank stripping station 4 after injection molding is completed, so that the action that the core body 6 is upwards pulled away from the bottle blanks at the injection molding station 3 can be omitted, the core body, the half clamp and the bottle blanks are upwards lifted for a short distance to achieve the purpose of being pulled away from the injection molding cavity, the machining efficiency is improved by shortening the time of single machining, the height of an injection molding bottle blank molding machine can be reduced by reducing the space reserved for lifting the core body 6, the transportation and arrangement are convenient, the cost of raw materials required by production equipment is reduced, the bottle blanks can be cooled and shaped by utilizing the core body 6, the structural strength of the bottle blanks during blank stripping can be used for dealing with collision during falling of the blank stripping, the condition of collision deformation of the bottle blanks is prevented, and the quantity of waste products is reduced.

In actual operation, conveying mechanism 2 includes the movable table 8 with the solid coupling of core 6, order about the first lifting unit 13 of the vertical lift of movable table 8 and order about the translation subassembly 15 of 8 horizontal migration of movable table, and core 6 orders about under the movable table 8 with the vertical plug-in cooperation in injection molding cavity 5 and the translation of knockout station 4 behind pulling out from injection molding cavity 5. And a second lifting component 14 for driving the half clamp 7 to lift is arranged at the bottom of the movable table 8, and the bottle blank is driven by the half clamp 7 to move downwards and be separated from the core body 6 when moving to the blank removing station 4. The movable table 8, the core body 6 and the half clamp 7 are controlled by the first lifting assembly 13, the translation assembly 15 and the second lifting assembly 14 so as to complete the injection molding of the bottle blank. Specifically, the injection molding mechanism, the conveying mechanism 2 and the blank receiving mechanism realize bottle blank processing through the following steps:

firstly, an injection molding mechanism heats and liquefies raw materials through a charging barrel screw, a movable table 8 is driven by a translation component 15 to move to the position above the injection molding mechanism and then driven by a first lifting component 13 to move downwards so that a core body 6 is inserted into an injection molding cavity 5 from top to bottom, in the process, a half clamp 7 is closed, and a second lifting component 14 drives the half clamp 7 to ascend through a half fixing plate 20 so that an upper convex rib 19 is inserted into an upper positioning groove 18;

secondly, the first lifting component 13 drives the movable table 8 to continuously descend until the bottom surface of the half clamp 7 is abutted against the periphery of the cavity opening of the injection molding cavity 5, the lower convex rib 11 is inserted into the lower positioning groove 12, and the half clamp 7, the core body 6 and the injection molding cavity 5 are enclosed to form a closed cavity isolated from the outside;

thirdly, the injection molding mechanism comprises a hot runner, the liquefied raw material is injected into a closed cavity under the pushing action of an injection molding oil cylinder, a cooling channel for cooling water to flow through is arranged outside the closed cavity, and then a cooling medium is conveyed to the injection mold and the cooling channel in the core body 6 to cool and shape the raw material in the closed cavity, so that a bottle blank is obtained, at the moment, the outline of the bottle blank is fixed and is in a softening state, the core body 6 is inserted into the bottle blank, and the blank mouth of the bottle blank is clamped by a half clamp 7;

fourthly, synchronously lifting the core body 6 and the half clamp 7 by simultaneously controlling the first lifting assembly 13, separating the outer side wall of the bottle blank from the inner side wall of the injection molding cavity 5, tightly attaching the core body and the half clamp to the bottle blank, continuously conveying a cooling medium in a cooling channel, and continuously cooling the bottle blank;

fifthly, driving the movable table 8 to continuously rise through the first lifting assembly 13, enabling the core body 6, the bottle blank and the half clamp 7 to synchronously rise along with the movable table 8, enabling the core body 6 to be switched to a pulling-out station (as shown in fig. 3), enabling the bottle blank to be completely separated from the injection molding cavity 5, continuously conveying a cooling medium in a cooling channel, continuously cooling the bottle blank, and enabling the lower convex rib 11 to be vertically separated from the lower positioning groove 12;

sixthly, driving the movable table 8 to move horizontally from the injection molding station 3 to the blank removing station 4 through the translation assembly 15, enabling the core body 6, the bottle body and the half clamp 7 to move horizontally synchronously along with the movable table 8, and continuously conveying cooling media in the cooling channel to continuously cool the bottle blank;

seventhly, the second lifting assembly 14 drives the half clamp 7 to move downwards, so that the upper convex rib 19 is vertically separated from the upper positioning groove 18, and the outer side wall of the core body 6 is separated from the inner side wall of the bottle blank due to vertical deviation;

and eighthly, opening the half clamp 7 and separating from the blank opening of the bottle blank, and separating the bottle blank from the conveying mechanism 2 and receiving the bottle blank by the blank receiving structure.

In the course of working, core 6, huff clamp 7 and the synchronous lifting of bottle base just can carry out horizontal migration after the bottle base breaks away from the chamber of moulding plastics, shorten the preparation time that the chamber of moulding plastics once more and carry out the operation of moulding plastics through shortening the length of time that the bottle base breaks away from the chamber of moulding plastics, effectively promote machining efficiency. Core 6 need not to extract the bottle base, need not to provide the required space of extracting the bottle base for core 6, can effectively save core 6 and extract the required time of bottle base, promotes machining efficiency long through shortening single processing, 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 knockout stations 4 are respectively arranged at two sides of the injection molding station 3, the movable table 8 is provided with two groups of cores 6, and a second lifting component 14 and a half clamp 7 which correspond to the cores 6, and the cores 6 can be synchronously translated and lifted under the driving of the same movable table 8, so that the two groups of cores 6 can alternately acquire the bottle blanks formed by injection molding at the injection molding mechanism under the matching of the corresponding half clamp 7 and convey the bottle blanks to the corresponding knockout stations 4. Specifically, conveying mechanism 2 includes by being row body group and core group two numbers that put in 8 both sides of movable table separately and constitute, and 3 both sides of station of moulding plastics are equipped with respectively with core group one number corresponding knockout station 4 and No. two knockout station 4 that correspond with core group two numbers. During operation, firstly, a first core group is inserted into an injection molding cavity 5 and processed to obtain a bottle blank, a second core group is positioned at a second knockout station 4 to perform bottle blank separation operation, then, under the unified driving of a movable table 8, the second core group is moved into the injection molding cavity 5 and processed to obtain the bottle blank, the first core group is moved to the first knockout station 4 to perform bottle blank separation operation, and two groups of cores 6 are repeatedly operated to alternately obtain the bottle blank formed by injection molding at the injection molding cavity 5 and convey the bottle blank to the corresponding knockout station 4.

In actual operation, the huff clamp 7 comprises two symmetrically arranged clamping plates 9 (as shown in fig. 4), the huff clamp 7 can be switched between a clamping state in which the clamping plates 9 are tightly abutted and an opening state in which the clamping plates 9 are separated from each other in a back direction, and when the huff clamp 7 is switched from the opening state to the clamping state, the clamping opening 10, the corresponding core body 6 and the injection molding cavity 5 are enclosed to form the closed cavity. When the half clamp 7 is switched to the opening state, the clamping plates 9 are separated in a back-to-back mode, so that the half clamp 7 is separated from a blank opening of the bottle blank, and the bottle blank can fall from the conveying mechanism 2 at the blank release station 4 and is received by the blank receiving mechanism. When the half clamp 7 is switched to a clamping state and the core body 6 is positioned at an inserting station, the clamping openings 10 on the two clamping plates 9 are oppositely butted and form a closed cavity by being surrounded with the core body 6 and the injection molding cavity 5, when the injection molding of the bottle blank is completed, the half clamp 7 can be clamped on a blank opening formed by injection molding, the clamping and transferring effects are achieved on the bottle blank, and the bottle blank can be vertically separated from the injection molding cavity 5 and horizontally moved to the blank stripping station 4.

In actual operation, the injection molding cavities 5 are arranged in a plurality of rows, and a plurality of clamping openings 10 corresponding to the injection molding cavities 5 one by one are formed in opposite side edges of the clamping plates 9. In order to improve the processing efficiency, the injection molding mechanism improves the processing efficiency by setting up a plurality of injection molding cavities 5 that can mould plastics simultaneously and form the bottle base, specifically, the injection molding cavities 5 are arranged for injection molding cavities 5 all are located same straight line, and the injection molding cavities 5 that are located same row all cooperate with same huff clamp 7, and huff clamp 7 utilizes rectangular form splint 9 to come to cooperate with each injection molding cavity 5 is unified, can effectively simplify the structure that huff clamp 7, still ensures that huff clamp 7 can cooperate with each injection molding cavity 5 is unified, ensures that the bottle base profile is unified and accurate carries.

In practical operation, the clamping plates 9 are movably arranged below the half fixing plate 20, the half fixing plate 20 is arranged at the bottom of the movable table 8 through the second lifting assembly 14, so that the clamping plates 9 are ensured to realize the switching of the half clamp 7 between the opening state and the clamping state through opening and closing actions, and the second lifting assembly 14 can be used for realizing independent lifting adjustment relative to the movable table 8. Specifically, the second lifting assembly 14 comprises a vertically arranged second oil cylinder, a cylinder body of the second oil cylinder is fixedly connected with the movable table 8, the telescopic rod is fixedly connected with the half fixing plate 20, and the second oil cylinder drives the half clamp 7 to lift relative to the movable table 8 through the half fixing plate 20. At least two second oil cylinders which are separately arranged are arranged between the half fixing plate 20 and the movable table 8, the second oil cylinders synchronously act to ensure that the half fixing plate 20 stably ascends and descends, and the preferable scheme is that the number of the second oil cylinders is four, the second oil cylinders are separately arranged at each corner of the half fixing plate 20, and a cylinder body of each second oil cylinder is fixedly connected to the side wall of the movable table 8, so that the top surface of the half fixing plate 20 can be close to the bottom surface of the movable table 8 when the second oil cylinders contract, and the sealing ring surface 21 of the core body 6 can be tightly attached to the upper periphery of the clamping opening 10 of the half clamp 7. The half fixing plate 20 is provided with a through hole, the core body 6 penetrates through the through hole and extends downwards during installation, when the half fixing plate 20 is driven by the second lifting component 14 to drive the half clamp 7 to ascend, the bottom of the limiting ring 17 penetrates through the through hole and abuts against the top surface of the half clamp 7, so that the upper convex rib 19 and the upper positioning groove 18 are vertically inserted, and the sealing ring surface 21 of the core body 6 vertically penetrates through the through hole and abuts against the upper periphery of the clamping opening 10 of the half clamp 7.

In actual operation, the first lifting component 13 is a vertically arranged first oil cylinder, a cylinder body of the first oil cylinder is fixedly connected with a support, a telescopic rod is fixedly connected with a movable template 16 of the injection mold, the first oil cylinder drives the movable template 16 of the injection mold to lift, so that the translation component 15 and the movable platform 8 can lift synchronously and drive the core 6 to lift and switch between an inserting station downwards inserted into the injection molding cavity 5 and a pulling station upwards separated from the injection molding cavity 5, the first oil cylinder is fixedly connected with the support, the telescopic rod of the first oil cylinder can drive the movable template 16 of the injection mold to lift, further the translation component 15, the movable platform 8, the core 6 and the huff clamp 7 are driven to lift synchronously, the core 6 can be ensured to lift and switch between the inserting station and the pulling station, and the huff clamp 7 can clamp the bottle blank and the core 6 to lift synchronously.

In actual operation, translation subassembly 15 rigid coupling is on injection mould mobile template 16, translation subassembly 15 is the translation hydro-cylinder of level setting, and the cylinder body and the mobile template of injection mould rigid coupling of translation hydro-cylinder, telescopic link and activity platform 8 rigid coupling, translation subassembly 15 orders about activity platform 8 horizontal migration. Specifically, the translation assembly 15 includes a slide rail disposed on the movable platen 16 of the injection mold and a slide block disposed on the movable table 8, and the slide block slides horizontally along the slide rail, so that the movable table 8 drives the core body 6 to translate back and forth between the injection molding station 3 and the knockout station 4. The movable mould plate 16 of the injection mould is provided with two slide rails which are separately arranged and are parallel to each other, the movable table 8 is provided with a slide block which is connected with the slide rails in a sliding manner, after the movable table is installed in place, the movable table 8 is suspended below the movable mould plate 16 of the injection mould in a horizontally sliding manner through the slide block, so that the movable table 8 can be synchronously lifted and descended with the movable mould plate 16 of the injection mould, the movable table 8 can be horizontally slid relative to the movable mould plate 16 of the injection mould, the core body 6 can be ensured to independently perform vertical lifting action and horizontal sliding action, and the core body 6 can be ensured to accurately move along a preset path.

In practice, the contour of the closed chamber is effectively defined to ensure that the injection molded bottle blank has a uniform contour. Specifically, the movable table 8 moves downwards and drives the core body 6 and the half clamp 7 in a clamping state to synchronously move downwards, when the core body 6 is inserted into the injection molding cavity 5 and descends to an insertion station, the sealing ring surface 21 of the core body 6 is lapped on the upper periphery of the clamping opening 10 through the outer edge of the core body, and the clamping opening 10 is ensured to be in sealing connection with the sealing ring surface 21; the limiting ring 17 fixedly connected on the movable table 8 is sleeved on the core body 6, so that the outer side wall of the core body 6 positioned at the section above the sealing ring surface 21 is tightly attached to the inner side wall of the limiting ring 17, and the limiting ring 17 and the core body 6 are ensured to be mutually concentrically arranged; the bottom surface of the limiting ring 17 extends downwards to form an upper convex rib 19, the top surface of the half clamp 7 is provided with an upper positioning groove 18, the second lifting component 14 contracts and drives the upper convex rib 19 to be inserted into the upper positioning groove 18, so that the limiting ring 17 and the half clamp 7 are concentrically arranged; the bottom surface of the half clamp 7 is provided with an underlying positioning groove 12, the periphery of the cavity opening of the injection molding cavity 5 is provided with an underlying convex rib 11, the half clamp 7 falls along with the movable table 8 and abuts against the periphery of the cavity opening of the injection molding cavity 5, and the underlying convex rib 11 is inserted into the underlying positioning groove 12, so that the half clamp 7 and the injection molding cavity 5 are concentrically arranged. Because core 6 and spacing ring 17 each other are concentric setting, spacing ring 17 and half press from both sides 7 concentric setting, half press from both sides 7 and mould plastics the chamber 5 concentric setting for core 6 and half press from both sides 7 and mould plastics the chamber 5 and enclose to close when forming airtight cavity with moulding plastics the chamber under the driving of movable table 8 core 6 and mould plastics chamber 5 and be concentric setting each other, and then guarantee that the bottle base that forms of moulding plastics has unified overall dimension and wall thickness, effectively guarantee bottle base quality.

In actual operation, core 6 vertically inserts injection molding cavity 5 and is put the location by spacing subassembly card, spacing subassembly includes spacing ring 17 of rigid coupling on activity platform 8, and 6 lateral walls of core closely laminate with the inside wall of spacing ring 17 to reduce the radial skew of core 6 when the bottle base of moulding plastics. The limiting ring 17 is tightly sleeved on the middle section of the core body 6, the limiting ring 17 is fixedly connected with the movable table 8, the movable table 8 at the top end of the core body 6 is fixedly connected, the top end and the middle section of the core body 6 are ensured to move synchronously with the movable table 8, and the core body 6 is ensured to be always kept in a vertical posture.

In actual operation, the periphery of the opening of the injection molding cavity 5 is provided with an upward raised lower convex rib 11, the bottom surface of the half clamp 7 is provided with a lower positioning groove 12, and when the half clamp 7, the core body 6 and the injection molding cavity 5 are enclosed to form a closed cavity, the lower convex rib 11 is vertically inserted into the lower positioning groove 12, so that the half clamp 7 is positioned in a clamping state and is concentrically arranged with the injection molding cavity 5. The bottom of the limiting ring 17 extends downwards to form an upper convex rib 19, an upper positioning groove 18 is formed in the top surface of the half clamp 7, when the half clamp 7, the core body 6 and the injection molding cavity 5 are enclosed to form a closed cavity, the upper convex rib 19 is vertically inserted into the upper positioning groove 18, and the inner side wall of the limiting ring 17 is tightly attached to the outer side wall of the core body 6, so that the half clamp 7 and the core body 6 are concentrically arranged. Specifically, the lower convex rib 11, the lower positioning groove 12, the upper convex rib 19 and the upper positioning groove 18 are all in a circular truncated cone shape, so that the effect of guiding insertion is achieved, the effect of horizontal locking can also be achieved after the insertion is in place, the matching insertion between the lower convex rib 11 and the lower positioning groove 12 and between the upper convex rib 19 and the upper positioning groove 18 is ensured, and the effective limit in the horizontal plane is achieved. The top surface and the bottom surface of the clamping plate 9 are respectively provided with an upper positioning groove 18 and a lower positioning groove 12 which are arranged corresponding to the clamping openings 10, so that each section of the clamping plate 9 is ensured to have better positioning stability.

In this embodiment, the outer side wall of the core body 6 is provided with a sealing ring surface 21 which is exposed downwards, and when the core body 6 is inserted into the injection molding cavity 5, the sealing ring surface 21 is tightly overlapped on the top surface of the huff clamp 7 from top to bottom, so that the core body 6 is hermetically connected with the huff clamp 7 through the sealing ring surface 21. The half clamp 7 is driven by the second lifting component 14 to move upwards and is in sealing fit with the outer edge of the sealing ring surface 21 through the upper peripheral edge of the clamping opening 10, so that the outer side wall of the core body 6, the inner side wall of the clamping opening 10 of the half clamp 7 and the inner edge of the sealing ring surface 21 enclose a space for forming a bottle blank opening through injection molding.

In this embodiment, a cooling pipe 22 is disposed in the core 6 along the axial direction thereof, and the cooling medium flowing through the cooling pipe 22 absorbs heat in the core 6, so that the preform is cooled and shaped during production. The cooling pipeline 22 is arranged along the axis of the core body 6 and is provided with a loop, so that the core body 6 can obtain a continuously conveyed cooling medium through the cooling pipeline 22, and further continuously cool the bottle blank sleeved on the core body 6, and the bottle blank is ensured to be separated from the core body 6 after having better structural strength. The cooling shaping operation is started on behalf of the cooling shaping operation when the cooling medium is conveyed to the cooling channel, and is stopped on behalf of the cooling shaping operation when the cooling medium is stopped conveyed to the cooling channel, and for the implementation time of the cooling shaping operation, the preferable scheme is that the cooling shaping operation is started after the sealed cavity is filled with the raw material and ended when the bottle preform is separated from the core body 6, so that the time required for transferring the bottle preform from the injection molding station 3 to the preform removing station 4 is effectively utilized, the raw material can be ensured to have good fluidity when being injected into the sealed cavity by stopping conveying the cooling medium, and the sealed cavity can be ensured to be filled with the raw material. The cooling medium is cooling water, can have the heat transfer, promotes the cooling effect, still has better mobility, promotes cooling efficiency through promoting the cooling medium velocity of flow.

In actual operation, all be equipped with below the knockout station 4 and connect base mechanism, connect base mechanism can softly receive the bottle base, can also last the cooling to the bottle base, ensure that the bottle base further cools off the design. When the movable table 8 descends and orders about the first core group to be inserted into the injection molding cavity 5, the second core group descends along with the movable table 8 synchronously, so that the distance between the bottle blank and the blank receiving mechanism is shortened, at the moment, the bottle blank is driven by the half clamp 7 ordered by the second lifting component 14 to move downwards, the distance between the bottle blank and the blank receiving assembly is continuously shortened, the inner side wall of the bottle blank and the outer side wall of the core body 6 are completely separated, the bottle blank is separated from the conveying mechanism 2 when the half clamp 7 is switched to an opening state, and the bottle blank falls into the blank receiving mechanism under the action of self gravity, so that the bottle blank is collected and conveyed outwards in a centralized mode.

Specifically, the blank receiving mechanism includes, but is not limited to, the following structures:

the first structure is that the preform receiving mechanism can be a cooling water tank arranged below the preform removing station 4, the preform is separated from the core body 6 and falls into the cooling water tank, so that the preform is cooled continuously, and cooling water in the cooling water tank can not only softly receive the falling preform, but also cool the preform continuously;

the blank receiving mechanism is a cooling fan arranged below the blank removing station 4, the cooling fan forms cooling air flow, and the cooling air flow can slow down the falling speed of the bottle blanks and can continuously cool the bottle blanks;

structure three, connect base subassembly still can be for movable support bracket, the bottle base that falls passes through base mouth overlap joint on support bracket for the body suspension of bottle base can prevent that the body from receiving the condition that the striking takes place to warp, can also ensure the body suspension cooling.

The above blank receiving structure can be selectively configured according to actual situations, and all should be regarded as specific embodiments of the present invention.

In the utility model, the first lifting assembly, the second lifting assembly and the translation assembly are all oil cylinders, and can be changed into driving structures such as air cylinders and lead screws according to requirements, and all the driving structures are regarded as specific embodiments of the utility model.

In the utility model, the core body can be vertically arranged and is suitable for a vertical injection molding machine, and the core body and the injection molding cavity can be horizontally arranged and are suitable for a horizontal injection molding machine according to actual conditions, the telescopic directions of the first lifting assembly and the second lifting assembly are changed into horizontal directions which are perpendicular to the moving path of the translation assembly, so that the two groups of core bodies can be separated from the injection molding cavity along the axial direction of the core bodies and then alternately convey bottle blanks to two sides.

Claims (10)

1. The injection molding bottle blank molding machine comprises a machine frame (1) and a conveying mechanism (2) arranged on the machine frame (1), wherein the conveying mechanism (2) can drive a bottle blank to move from an injection molding station (3) to a blank removing station (4), and an injection molding cavity (5) is arranged at the injection molding station (3), and is characterized in that the conveying mechanism (2) comprises a core body (6) capable of axially reciprocating and a half clamp (7) capable of being opened and closed and switched, the core body (6) is axially inserted into the injection molding cavity (5) and surrounds the half clamp (7) to form a closed cavity of the injection molding bottle blank, the half clamp (7) clamps the injection molding bottle blank and drives the bottle blank to be separated from the core body (6) when the core body moves to the blank removing station (4), and the core body (6) and the half clamp (7) synchronously move and cool and shape the bottle blank before the bottle blank moves to the blank removing station (4).

2. An injection molding bottle blank molding machine according to claim 1, characterized in that the core is vertically arranged, the conveying mechanism (2) comprises a movable table (8) fixedly connected with the core (6), a first lifting component (13) driving the movable table (8) to vertically lift, and a translation component (15) driving the movable table (8) to horizontally move, and the core (6) is vertically inserted into and pulled out of the injection molding cavity (5) under the driving of the movable table (8) and is translated to the knockout station (4) after being pulled out of the injection molding cavity (5).

3. An injection molding machine for bottle preforms according to claim 2, characterized in that the movable table (8) is provided at its bottom with a second lifting assembly (14) for lifting the half clamp (7), the preforms being driven by the half clamp (7) to move downwards and disengage from the core (6) when moving to the ejection station (4).

4. An injection molding bottle blank molding machine according to claim 3, wherein the injection molding cavities (5) are arranged in rows, the half clamp (7) comprises two symmetrically arranged clamping plates (9), a plurality of clamping openings (10) corresponding to the injection molding cavities (5) one by one are arranged on opposite side edges of the clamping plates (9), the half clamp (7) can be switched between a clamping state in which the clamping plates (9) are tightly abutted and an opening state in which the clamping plates (9) are separated from each other, and when the half clamp (7) is switched from the opening state to the clamping state, the clamping openings (10) and the corresponding core bodies (6) and the injection molding cavities (5) are enclosed to form the closed cavity.

5. An injection molding bottle blank molding machine as claimed in claim 4, wherein the periphery of the opening of the injection molding cavity (5) is provided with an upward raised lower protruding rib (11), the bottom surface of the half clamp (7) is provided with a lower positioning groove (12), when the half clamp (7), the core body (6) and the injection molding cavity (5) enclose to form a closed cavity, the lower protruding rib (11) is vertically inserted into the lower positioning groove (12), so that the half clamp (7) is positioned in a clamping state and is arranged concentrically with the injection molding cavity (5); or, the second lifting assembly (14) comprises a vertically arranged second oil cylinder, the cylinder body of the second oil cylinder is fixedly connected with the movable table (8), the telescopic rod is fixedly connected with the half fixing plate (20), and the second oil cylinder drives the half clamp (7) to lift relative to the movable table (8) through the half fixing plate (20).

6. An injection molding bottle blank molding machine as claimed in claim 2, wherein the first lifting assembly (13) is a vertically arranged first oil cylinder, the body of the first oil cylinder is fixedly connected with the bracket, the telescopic rod is fixedly connected with the injection molding mold motorized template (16), and the first oil cylinder drives the injection molding mold motorized template (16) to lift, so that the translation assembly (15) and the movable table (8) are lifted synchronously and the core body (6) is driven to be switched between a downward insertion station inserted into the injection molding cavity (5) and an upward separation station separated from the injection molding cavity (5); or the translation component (15) is fixedly connected to the injection mold motorized template (16), the translation component (15) is a horizontally arranged translation oil cylinder, the body of the translation oil cylinder is fixedly connected with the injection mold motorized template (16), the telescopic rod is fixedly connected with the movable table (8), and the translation component (15) drives the movable table (8) to move horizontally; or the translation assembly (15) comprises a slide rail arranged on the movable template (16) of the injection mold and a slide block arranged on the movable table (8), and the slide block horizontally slides along the slide rail so that the movable table (8) drives the core body (6) to perform reciprocating translation between the injection molding station (3) and the knockout station (4).

7. An injection molding machine as claimed in claim 2, wherein said core (6) is vertically inserted into the injection molding cavity (5) and is retained in position by a retaining assembly, said retaining assembly comprising a retaining ring (17) fixed to the movable table (8), the outer side wall of the core (6) closely contacts with the inner side wall of the retaining ring (17) to reduce the radial offset of the core (6) during injection molding of the preform.

8. An injection molding bottle blank molding machine according to claim 7, characterized in that the bottom of the limiting ring (17) extends downwards to form an upper protruding rib (19), the top surface of the half clamp (7) is provided with an upper positioning groove (18), when the half clamp (7), the core body (6) and the injection molding cavity (5) enclose to form a closed cavity, the upper protruding rib (19) is vertically inserted into the upper positioning groove (18), the inner side wall of the limiting ring (17) is tightly attached to the outer side wall of the core body (6), so that the half clamp (7) and the core body (6) are concentrically arranged; or a sealing ring surface (21) which is open downwards is arranged on the outer side wall of the core body (6), and when the core body (6) is inserted into the injection molding cavity (5), the sealing ring surface (21) is tightly lapped on the top surface of the half clamp (7) from top to bottom, so that the core body (6) is connected with the half clamp (7) in a sealing way through the sealing ring surface (21).

9. An injection molding machine for preforms according to any one of claims 1 to 8, characterized in that the core (6) is provided with cooling ducts (22) which are open in the axial direction thereof, the injection cavity (5) is provided with cooling water channels outside thereof, and the cooling medium flowing through the cooling ducts (22) and the cooling water channels absorbs heat from the injection cavity so that the preforms are cooled and set during production.

10. An injection moulding machine for preforms according to any one of claims 1 to 8, characterized in that said ejection stations (4) are two and are arranged on either side of said injection station (3), said transfer means (2) comprising two groups of cores (6) solidly connected to a movable table (8), said cores (6) being inserted alternately into the injection moulding cavities (5) and being injected to form preforms which can be transferred to the respective ejection stations (4); or a cooling water tank is arranged below the blank removing station (4), and the bottle blank is separated from the core body (6) and falls into the cooling water tank so as to be continuously cooled; or a cooling fan is arranged below the blank removing station (4), the cooling fan forms cooling airflow, and the bottle blanks are contacted with the cooling airflow and are continuously cooled.

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