CN220742095U - Vertical multi-station injection blow hollow forming machine - Google Patents

Abstract

The vertical multi-station injection blow hollow forming machine comprises a frame and an injection mold locking mechanism, wherein the injection mold locking mechanism comprises a fixed seat, an upper movable mold plate assembly, a lower movable mold plate assembly, a rotary disk assembly, an injection mold and a core mold assembly, and the fixed seat is arranged on the frame and is provided with at least two stations at intervals; the upper movable template assembly comprises an upper movable template and an upper movable template driving piece, and the upper movable template is slidably arranged on the fixed seat and is connected with the upper movable template driving piece; the lower movable template assembly comprises a lower movable template and a lower movable template driving piece, and the lower movable template is arranged on the fixed seat in a sliding manner and is connected with the lower movable template driving piece; the rotary disc assembly comprises a rotary disc and a rotary driving piece, and the rotary driving piece is arranged on the upper movable mould plate and is connected with the rotary disc; the blank injection mold comprises an injection cavity assembly and a mouth mold assembly, and the injection cavity assembly is arranged at a station of the fixed seat; the mouth module assembly is arranged on the lower movable mould plate; the mandrel assembly is arranged on the turntable. Which prevents the parison from bending during rotation with the turntable.

Description

Vertical multi-station injection blow hollow forming machine

Technical Field

The utility model relates to injection molding equipment, in particular to a vertical multi-station injection blow hollow molding machine.

Background

The vertical multi-station injection blow molding machine is characterized in that the core dies of the vertical multi-station injection blow molding machine are vertically arranged and generally comprise a plurality of groups of core dies and a plurality of groups of mouth dies, and when the vertical multi-station injection blow molding machine works, the driving mechanism drives the plurality of groups of core dies and the plurality of groups of mouth dies to rotate simultaneously, so that a pipe blank moves at adjacent stations. In addition, in the existing vertical multi-station injection blow molding machine, each group of core dies is connected with an air pipe to blow and exhaust, the mouth die assembly following the core dies also needs to be connected with the air pipe to remove bottles, when the core dies and the mouth dies rotate simultaneously, a large number of air pipes connected with the core dies and the mouth dies also rotate along with the mouth dies, so that the core dies and the mouth dies can only rotate reciprocally in order to avoid winding pipes, and the rotating mode causes that more stations cannot be arranged for cooling the core dies, for example, a double-station reciprocating rotary injection blow hollow molding machine disclosed in China patent No. CN 201511518U. When the double-station reciprocating rotary injection-blow hollow forming machine is used for producing small-caliber bottles, because the core mold is too small to transport water for cooling, the core mold cannot be kept at a constant temperature in the production process, and parisons are often stuck on the core mold and cannot be blown up, so that qualified small-caliber bottles cannot be continuously produced.

The horizontal multi-station injection blow molding machine is characterized in that the core dies of the horizontal multi-station injection blow molding machine are horizontally arranged and comprise a plurality of groups of core dies and a group of mouth dies, when the horizontal multi-station injection blow molding machine works, the mouth dies do not rotate, and a pipe blank moves in adjacent stations in a mode that the driving mechanism drives the plurality of groups of core dies to rotate; although a parison cooling station can be added to realize continuous production of qualified small-caliber bottles, the parison is easy to deform before inflation due to the self weight and the rotation centrifugation because of the horizontal arrangement of the core mold, and part of the bottles cannot be molded; and during operation, the bottle blank easily falls out of the core mold due to centrifugal force, and the obtained bottle is uneven in thickness due to sagging of the self weight of the blank in the blowing-up process.

A hollow molding machine for injection stretch blow molding, which can ensure sufficient cooling by transporting water to a core mold when producing small-caliber bottles, but can easily deform and bend an elongated parison before inflation, and cannot stably produce qualified bottles, resulting in low yield of the obtained products. For example, chinese patent No. CN208896471U discloses an injection stretch blow molding hollow molding apparatus, which includes an injection molding mold part and a blow molding mold part, and further includes a frame and a table panel fixed on the frame, the table panel being connected to the upper plate through a guide post; the guide post is provided with a movable plate which is connected with the rotary disk through a rotary driving mechanism; the rotary disk is provided with a mouth module, and the rotary disk rotates to intermittently convey the mouth module to the injection molding die part and the blow molding die part respectively and form a blank injection die set and a stretch blow molding die set with the mouth module respectively; a mold locking cylinder is arranged at the position of the upper plate corresponding to the blank injection module, and a mold locking piston rod of the mold locking cylinder is connected with the movable plate; two or more quick oil cylinders are arranged in the workbench panel and the frame, and the movable plate and the rotary disk are driven to lift together. The injection stretch blow hollow molding device is characterized in that after a core mold is separated from a parison, the bottle mouth of the parison is connected to a mouth module, and then the mouth module and the parison connected to the mouth module are conveyed to a blow molding mold part through rotation of a rotary disk to be inflated. However, to ensure that the parison is smoothly inflated at the blow-molding die part, the parison must remain in a highly elastic state throughout the stretch-blow molding process, the parison in the highly elastic state is very soft and has low strength, the parison is easily deformed by bending due to the resistance of air or the centrifugal force in the process of rotating with the rotating disk and the mouth module, and the elongated parison is contracted in the natural cooling process to also cause bending deformation of the parison, resulting in a reduction in the yield of the obtained product.

Disclosure of Invention

The utility model aims to at least solve one of the technical problems in the background art, and provides a vertical multi-station injection blow hollow forming machine, which can reduce bending deformation caused by air resistance or centrifugal force in the rotating process of a parison along with a turntable or shrinkage in the natural cooling process and improve the yield of products compared with a horizontal multi-station injection blow forming machine or an injection stretch blow hollow forming machine in the prior art; and compared with the vertical multi-station injection blow molding machine in the prior art, the equipment cost can be reduced.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a vertical multistation annotates blows cavity make-up machine, includes the frame and installs the mode locking mechanism of moulding plastics in the frame, the mode locking mechanism of moulding plastics includes:

the fixed seat is arranged on the frame, and at least two stations are arranged at intervals;

the upper movable template assembly comprises an upper movable template and an upper movable template driving piece, the upper movable template is slidably arranged on the fixed seat, and the upper movable template driving piece is connected with the upper movable template to drive the upper movable template to reciprocate vertically;

The lower movable template assembly comprises a lower movable template and a lower movable template driving piece, the lower movable template is positioned below the upper movable template, and the lower movable template is slidingly arranged on the fixed seat; the lower movable die plate driving piece is connected with the lower movable die plate to drive the lower movable die plate to reciprocate vertically;

the rotary disc assembly comprises a rotary disc and a rotary driving piece, wherein the rotary disc is positioned between the upper movable die plate and the lower movable die plate, and the rotary driving piece is arranged on the upper movable die plate and connected with the rotary disc so as to drive the rotary disc to intermittently rotate by taking a vertical axis as a rotation center; and

the injection cavity assembly is arranged at one station of the fixed seat and is positioned below the lower movable template; the die assembly is arranged on the lower movable die plate and is positioned right above the injection cavity assembly; and

The mandrel assembly is arranged on the rotary table, the mandrel assembly can be matched with the blank injection die to form a parison wrapped on the mandrel assembly, and the mandrel assembly can rotate along with the rotary table so as to rotate the parison wrapped on the mandrel assembly to the next station.

Further, the injection molding and mold locking mechanism comprises a blow molding mold, the blow molding mold comprises a blowing component and a bottle blowing mold component positioned under the blowing component, the blowing component is arranged on the upper movable mold plate, and the bottle blowing mold component is arranged on other stations of the fixed seat and positioned under the lower movable mold plate.

Further, the fixing base is provided with four stations along the rotation direction interval of carousel, vertical multistation annotates blows hollow forming machine still includes and takes off bottle subassembly and mandrel cooling module, take off bottle subassembly with mandrel cooling module all install in on the fixing base and be located the below of lower movable mould board, injection die cavity subassembly the bottle blowing die subassembly take off bottle subassembly with mandrel cooling module is followed the rotation direction of carousel sets gradually in four station departments.

Further, the blank injection mold comprises four groups of core mold components, the four groups of core mold components are uniformly arranged at intervals around the rotation center of the turntable, and the four groups of core mold components correspond to the four stations respectively.

Further, a clearance groove is formed in the lower movable die plate, the clearance groove is right opposite to the die assembly, and the core die assembly can be sequentially inserted into the die assembly and the injection cavity assembly through the clearance groove.

Further, the air blowing assembly comprises a support frame, an air blowing driving piece and an air blowing mould, wherein the support frame is fixed on the upper movable mould plate, the air blowing driving piece is arranged on the support frame and connected with the air blowing mould, an air passage connector is arranged on the air blowing mould and used for connecting an air pipe, and an air inlet channel communicated with the air passage connector is arranged in the air blowing mould; the blow driving member can drive the blow mold to move in a direction toward the core mold assembly until the blow mold interfaces with the core mold assembly at the blow station and the air inlet channel communicates with the core mold assembly, or the blow driving member can drive the blow mold to move in a direction away from the core mold assembly until the blow mold is separated from the core mold assembly.

Further, the lower movable mold plate is provided with an avoidance hole, and the core mold assembly can be alternatively inserted into the bottle blowing mold assembly, the bottle removing assembly and the core mold cooling assembly through the avoidance hole.

Further, the upper movable die plate driving piece and the lower movable die plate driving piece are both arranged on the fixed seat.

Further, the fixing base comprises a fixing panel, a guide pillar and a mounting plate, wherein the fixing panel is fixed at the bottom end of the guide pillar, the mounting plate is fixed at the top end of the guide pillar, the upper movable mould plate and the lower movable mould plate are arranged between the fixing panel and the mounting plate in parallel and are all arranged on the guide pillar in a sliding manner, the upper movable mould plate driving part is arranged on the mounting plate, the lower movable mould plate driving part is arranged on the fixing panel, and the station is arranged on the fixing panel.

Further, the upper movable mould plate driving piece is a mould locking oil cylinder, the lower movable mould plate driving piece comprises a plurality of lifting oil cylinders, and the lifting oil cylinders are distributed at intervals along the circumferential direction of the lower movable mould plate.

Further, the rotary driving piece is connected with the rotary table through a connecting shaft, the connecting shaft is rotationally arranged on the upper movable die plate, the rotary table is fixedly sleeved on the connecting shaft, and the rotary driving piece is arranged on the upper movable die plate and is in driving connection with the connecting shaft.

Further, the bottle removing assembly comprises a base, a lifting table, a lifting driving piece and two clamping pieces, and the base is fixed on the fixed seat; the lifting table is connected with the base in a sliding way; the lifting driving piece is connected with the lifting table to drive the lifting table to move vertically; the two clamping pieces are arranged at opposite intervals, each clamping piece comprises a clamping driving piece arranged on the lifting table and clamping plates connected with the clamping driving piece, the clamping plates of the two clamping pieces are respectively positioned on two opposite sides of the core mold assembly of the corresponding station, and can be mutually close to clamp the plastic bottle product molded on the core mold assembly of the corresponding station under the driving of the clamping driving piece, or mutually far away from each other to release the plastic bottle product molded on the core mold assembly of the corresponding station.

By adopting the technical scheme, the utility model has the following beneficial effects:

according to the vertical multi-station injection blow hollow molding machine, the mandrel component intermittently rotates along with the turntable by taking the vertical axis as the rotation center, the whole die is only provided with one group of die components, the die components are opened when the die is opened and goes up to a preset position, and the die components do not rotate along with the turntable, but rotate to the next station through the mandrel component, so that compared with the mode that the mandrel of the horizontal multi-station injection blow molding machine in the prior art is horizontally arranged, the mandrel component of the vertical multi-station injection blow hollow molding machine intermittently rotates along with the vertical axis as the rotation center, and the probability that the parison is bent and deformed due to the resistance of air or the action of centrifugal force in the process of rotating along with the turntable can be reduced; compared with the mode that the injection stretch blow hollow forming machine in the prior art only drives the parison to rotate through the die assembly outside the bottle mouth of the parison, the contact area between the die assembly and the parison is larger, and the die assembly positioned in the parison can provide better support for the parison in the parison rotating process, so that the parison is prevented from bending deformation under the action of air resistance or centrifugal force or natural cooling shrinkage in the rotating process of the turntable, and the yield of products is improved. Compared with the vertical multi-station injection blow molding machine in the prior art, the vertical multi-station injection blow hollow molding machine only needs one group of die assemblies, so that the equipment cost is lower.

Drawings

FIG. 1 is a schematic view of a vertical multi-station injection blow molding machine according to a preferred embodiment of the present utility model;

FIG. 2 is a schematic perspective view of an injection mold locking mechanism in the vertical multi-station injection blow molding machine of FIG. 1;

FIG. 3 is an enlarged view of the structure of FIG. 2 at the blowing assembly;

FIG. 4 is a schematic diagram of a front view of the injection locking mechanism of FIG. 2;

FIG. 5 is a schematic view of a bottle-removing assembly of a vertical multi-station injection blow molding machine according to a preferred embodiment of the present utility model;

FIG. 6 is a schematic diagram of a cooling module of a core mold of a vertical multi-station injection blow molding machine according to a preferred embodiment of the present utility model;

description of the main reference signs

10. A frame; 20. an ejection system; 30. injection molding mode locking mechanism; 31. a fixing seat; 311. fixing the panel; 313. a guide post; 314. a mounting plate; 32. an upper movable template assembly; 321. an upper movable template; 322. a sliding hole; 323. an upper movable template driving member; 33. a lower movable die plate assembly; 331. a lower movable template; 332. a guide hole; 334. a clearance groove; 335. avoidance holes; 336. a lower movable die plate driving member; 34. a rotating disc assembly; 341. a turntable; 343. a rotary driving member; 344. a connecting shaft; 35. a blank injection mold; 351. an injection molding cavity assembly; 353. a die assembly; 36. a mandrel assembly; 361. a core mold; 37. blow molding a mold; 371. an air blowing assembly; 3711. a support frame; 3712. a support plate; 3713. connecting the upright posts; 3714. a blowing driving member; 3715. blowing a mold; 372. a bottle blowing die assembly; 373. a mold closing oil cylinder; 374. closing the template; 375. a communication port; 38. a mandrel cooling assembly; 381. a cavity mold; 382. the gas circuit joint; 383. a cavity; 39. a bottle removing assembly; 391. a base; 3911. a base; 3912. a guide rod; 392. a lifting table; 3921. a guide hole; 3923. falling into a bottle mouth; 3924. a guide groove; 393. a lifting driving member; 394. a clamping member; 3941. clamping the driving member; 3942. a clamping plate; 3943. a groove; 40. a plastic bottle product.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 6, a vertical multi-station injection blow hollow molding machine according to a preferred embodiment of the present utility model includes a frame 10, an injection mold locking mechanism 30 and an injection system 20, wherein the injection mold locking mechanism 30 and the injection system 20 are both mounted on the frame 10, and the injection system 20 is used for injecting the injection mold to the injection mold locking mechanism 30.

The injection mold locking mechanism 30 comprises a fixed seat 31, an upper movable mold plate assembly 32, a lower movable mold plate assembly 33, a rotary disk assembly 34, a blank injection mold 35 and a core mold assembly 36, wherein the upper movable mold plate assembly 32, the lower movable mold plate assembly 33, the rotary disk assembly 34, the blank injection mold 35 and the core mold assembly 36 are all arranged on the fixed seat 31.

At least two stations are arranged on the fixed seat 31 at intervals, in this embodiment, four stations (not labeled) are arranged on the fixed seat 31 at intervals, and the angle between two adjacent stations is 90 degrees. Specifically, the fixing base 31 includes a fixing panel 311, a guide post 313 and a mounting plate 314, the fixing panel 311 is fixed on the frame 10, the bottom end of the guide post 313 is fixedly connected with the fixing panel 311, and the mounting plate 314 is fixed on the top end of the guide post 313. In the present embodiment, the fixing base 31 includes a plurality of guide posts 313, the plurality of guide posts 313 are vertically disposed and distributed around the circumference of the fixing panel 311 at intervals, one end of each guide post 313 is fixedly connected with the fixing panel 311, and the other end of each guide post 313 is fixedly connected with the mounting plate 314. In this embodiment, four stations are disposed on the top surface of the fixed panel 311 at intervals, and each station is disposed at a space surrounded by two adjacent guide posts 313.

The upper movable mold plate assembly 32 comprises an upper movable mold plate 321 and an upper movable mold plate driving member 323, wherein the upper movable mold plate 321 is slidably mounted on the fixed seat 31, and the upper movable mold plate driving member 323 is connected with the upper movable mold plate 321 to drive the upper movable mold plate 321 to reciprocate vertically. In the present embodiment, the upper moving die plate 321 is provided with a plurality of sliding holes 322 corresponding to the plurality of guide posts 313, and the upper moving die plate 321 is slidably sleeved on the plurality of guide posts 313 through the plurality of sliding holes 322. The upper movable mold plate driving part 323 is arranged on the fixed seat 31, the upper movable mold plate driving part 323 is a mold locking oil cylinder, a cylinder body of the mold locking oil cylinder is fixed on the mounting plate 314, and a piston shaft of the mold locking oil cylinder is connected with the upper movable mold plate 321 so as to drive the upper movable mold plate 321 to slide along the guide post 313. In addition, after the upper movable die plate 321 is moved down to be clamped in place, the die locking cylinder can also perform pressurizing die locking. The structure of the mold locking cylinder belongs to the prior art, and for the sake of omitting the space, the description is omitted here. It should be understood that in other embodiments, the upper moving platen driving member 323 may be another driving device capable of driving the upper moving platen 321 to move linearly in the prior art, and the upper moving platen 321 may be locked by a locking mechanism with other structures in the prior art.

The lower movable mold plate assembly 33 includes a lower movable mold plate 331 and a lower movable mold plate driving member 336, the lower movable mold plate 331 is located below the upper movable mold plate 321, and the lower movable mold plate 331 is slidably mounted on the fixed seat 31, and the lower movable mold plate driving member 336 is connected to the lower movable mold plate 331 to drive the lower movable mold plate 331 to reciprocate vertically. In the present embodiment, the lower movable mold plate 331 and the upper movable mold plate 321 are disposed between the fixed panel 311 and the mounting plate 314 in parallel and are both slidably mounted on the guide posts 313, specifically, a plurality of guide holes 332 are disposed on the lower movable mold plate 331 corresponding to the plurality of guide posts 313, and the lower movable mold plate 331 is slidably sleeved on the plurality of guide posts 313 through the plurality of guide holes 332. The lower movable mold plate driving member 336 is mounted on the fixed seat 31, the lower movable mold plate driving member 336 includes a plurality of lift cylinders, the lift cylinders are distributed at intervals along the circumferential direction of the lower movable mold plate 331, and the cylinder body of each lift cylinder is fixed on the fixed panel 311, and the piston shaft of each lift cylinder is connected with the lower movable mold plate 331 so as to drive the lower movable mold plate 331 to reciprocate along the guide post 313. It is understood that in other embodiments, the lower moving platen driving member 336 can be a driving device capable of driving the lower moving platen 331 to move linearly.

The rotating disc assembly 34 includes a rotating disc 341 and a rotating driving member 343, wherein the rotating disc 341 is located between the upper moving die plate 321 and the lower moving die plate 331, and the rotating driving member 343 is mounted on the upper moving die plate 321 and connected to the rotating disc 341 to drive the rotating disc 341 to intermittently rotate with a vertical axis as a rotation center. In the present embodiment, the rotary driving member 343 is connected to the turntable 341 through a connecting shaft 344, the connecting shaft 344 is vertically disposed and rotatably mounted on the upper moving die plate 321, the turntable 341 is fixedly sleeved on the connecting shaft 344, and the rotary driving member 343 is in driving connection with the connecting shaft 344. The rotation driving member 343 can be a motor of the prior art, which is fixed on the upper moving platen 321 and can be in driving connection with the connecting shaft 344 through a transmission mechanism such as a gear transmission device, so as to drive the connecting shaft 344 and the turntable 341 to intermittently rotate with the central shaft of the connecting shaft 344 as a rotation center. It is understood that in other embodiments, the rotary driving member 343 may be another driving device capable of rotating the turntable 341 in the prior art.

The injection mold 35 comprises an injection cavity assembly 351 and a die assembly 353, wherein the injection cavity assembly 351 is arranged at one station of the fixed seat 31 and is positioned below the lower movable mold plate 331; the die assembly 353 is mounted to the lower movable platen 331 and is positioned directly above the injection cavity assembly 351. In this embodiment, the injection cavity assembly 351 is mounted at one of the stations of the fixed panel 311 and directly below the die assembly 353. The injection cavity assembly 351 and the die assembly 353 of the present embodiment are both configured in the prior art, for example, refer to the injection die set in the chinese patent CN201511518U, and the die assembly 353 refers to the die set in the chinese patent CN201511518U, so that details are omitted and are not repeated here. The die assembly 353 of this embodiment may employ a threaded die set by which threads can be formed at the finish of the parison. It is understood that other configurations of die assemblies 353 of the prior art may be employed.

In the present embodiment, the injection mold locking mechanism 30 includes a blow molding mold 37, and the blow molding mold 37 includes a blowing unit 371 and a bottle blowing unit 372 located directly below the blowing unit 371. The blowing component 371 is installed on the upper moving die plate 321, and the bottle blowing die component 372 is installed on other stations of the fixed base 31 and below the lower moving die plate 331. In this embodiment, the blowing component 371 includes a supporting frame 3711, a blowing driving member 3714 and a blowing mold 3715, the supporting frame 3711 is fixed on the upper moving mold plate 321, the blowing driving member 3714 is installed on the supporting frame 3711 and connected to the blowing mold 3715, and the blowing mold 3715 is provided with an air passage connector (not shown) for connecting an air pipe (not shown). Specifically, a supporting frame 3711 is fixed on the upper surface of the upper moving die plate 321, the supporting frame 3711 includes a connecting upright 3713 and a supporting plate 3712, and one end of the connecting upright 3713 is fixedly connected with the upper surface of the upper moving die plate 321; the support plate 3712 is secured to the connecting post 3713. The air blowing driving member 3714 is mounted on the supporting plate 3712, and in this embodiment, the air blowing driving member 3714 may be an oil cylinder or an air cylinder in the prior art. Blow mold 3715 is located below support plate 3712, blow mold 3715 is also slidably connected to connecting post 3713 of support frame 3711 to guide the movement of blow mold 3715 through connecting post 3713; a plurality of air inlet passages (not shown) are provided in the blow mold 3715 in communication with the air path connectors. The blowing driving piece 3714 can drive the blowing mould 3715 to move towards the direction close to the core mould assembly 36 until the blowing mould 3715 is in butt joint with the core mould assembly 36 at the blowing station and a plurality of air inlet channels are respectively communicated with a plurality of core moulds 361 of the core mould assembly 36, so that air in a vent pipe sequentially enters the blowing mould 3715 and the core mould assembly 36 through an air passage joint, and parisons wrapped on the core mould assembly 36 are inflated; or blow drive 3714 can drive movement of blow mold 3715 in a direction away from mandrel assembly 36 until blow mold 3715 is separated from mandrel assembly 36, thereby stopping the inflation operation. In addition, in order to facilitate the butt joint between the blow mold 3715 and the core mold assembly 36, in this embodiment, the upper movable mold plate 321 and the turntable 341 are provided with a communication port 375 corresponding to the blow assembly 371; in use, blow mold 3715 can be inserted into communication port 375 such that blow mold 3715 interfaces with core mold assembly 36.

In this embodiment, the blow mold assembly 372 is mounted on the fixed panel 311 at a station adjacent to the injection cavity assembly 351, i.e., the blow molding station. The bottle blowing mold assembly 372 may include a mold closing cylinder 373, a mold closing plate 374, etc., and reference may be made to the description of the chinese patent CN201511518U, which also belongs to the prior art, and for brevity, the description is omitted here. In use, the core mold assembly 3 and the parison wrapped around the core mold assembly 3 enter the closed mold platen 374, and the blow assembly 371 is used to blow air into the core mold assembly 3. The mold closing plate 374 is driven to open or close by the mold closing cylinder 373.

In this embodiment, the injection mold locking mechanism 30 further includes a bottle removing assembly 39 and a core mold cooling assembly 38, and the bottle removing assembly 39 and the core mold cooling assembly 38 are respectively mounted on the other two stations of the fixed seat 31 and are located below the lower moving platen 331. The injection cavity assembly 351, the bottle blowing mold assembly 372, the bottle removing assembly 39 and the core mold cooling assembly 38 are uniformly arranged at intervals around the rotation center of the turntable 341, specifically, the injection cavity assembly 351, the bottle blowing mold assembly 372, the bottle removing assembly 39 and the core mold cooling assembly 38 are sequentially arranged at four stations of the fixed panel 311 along the rotation direction of the turntable 341, namely, the injection cavity assembly 351 is opposite to the bottle removing assembly 39, the bottle blowing mold assembly 372 is opposite to the core mold cooling assembly 38, wherein the station where the injection cavity assembly 351 is located is an injection molding station, the station where the bottle blowing mold assembly 372 is located is a blow molding station, the station where the bottle removing assembly 39 is located is a bottle removing station, and the station where the core mold cooling assembly 38 is located is a cooling station.

Referring to fig. 5 again, in the present embodiment, the bottle removing assembly 39 includes a base 391, a lifting table 392, a lifting driving member 393 and two clamping members 394. The base 391 is fixed on the fixing base 31; in the present embodiment, the base 391 is fixed on the top surface of the fixed panel 311, the base 391 includes two opposite bases 3911, the bottom ends of the bases 3911 are fixed on the top surface of the fixed panel 311, and a vertically disposed guide bar 3912 is fixed on each base 3911. The lifting platform 392 is slidably connected with the base 391; specifically, in the present embodiment, guide holes 3921 are formed in the lifting platform 392 corresponding to the guide rods 3912 of the two bases 3911, and the lifting platform 392 is slidably sleeved on the guide rods 3912 of the base 391 through the guide holes 3921, so that the lifting platform 392 is guided to lift by the guide rods 3912. In the present embodiment, the lifting platform 392 is further provided with a bottle opening 3923, the bottle opening 3923 is located between the two guide holes 3921 and penetrates the top surface and the bottom surface of the lifting platform 392, and the plastic bottle product 40 after demolding can drop out of the lifting platform 392 through the bottle opening 3923 under the action of self gravity. The lift driving member 393 is connected to the lift table 392 to drive the lift table 392 to move vertically. In the present embodiment, the number of the lift driving members 393 is two, and the two lift driving members 393 are respectively mounted on the two bases 3911 and respectively connected to two ends of the lift table 392. The lift driving member 393 may be a cylinder, an oil cylinder, etc. according to the prior art, and the present utility model is not limited thereto, and in other embodiments, the number of lift driving members 393 may be one or more than two. The two clamping members 394 are arranged at opposite intervals, each clamping member 394 comprises a clamping driving member 3941 arranged on the lifting table 392 and clamping plates 3942 connected with the clamping driving member 3941, and the clamping plates 3942 of the two clamping members 394 are respectively positioned at two opposite sides of the core mold assembly 36 of the corresponding station and can be mutually close to clamp the plastic bottle product 40 molded on the core mold assembly 36 of the corresponding station or mutually far away from each other to release the plastic bottle product 40 molded on the core mold assembly 36 of the corresponding station under the driving of the clamping driving member 3941. In this embodiment, the grip driving member 3941 may be a cylinder, an oil cylinder, or the like of the related art, and the present utility model is not limited thereto. In addition, the lifting platform 392 is further provided with a guide groove 3924 corresponding to the clamping plate 3942, and the clamping plate 3942 is slidably arranged at the guide groove 3924, so that the movement of the clamping plate 3942 can be guided, and the movement of the clamping plate 3942 is more stable. In the present embodiment, the side of each clamping plate 3942 facing the other clamping plate 3942 is further provided with a plurality of grooves 3943 corresponding to the plurality of core dies 361 in the core die assembly 36, when the clamping member 394 is in the clamping state, the two clamping plates 3942 are close to each other so that the grooves 3943 corresponding to the two clamping plates 3942 are surrounded to form a clamping groove (not labeled), and the clamping groove is used for clamping the screw portion of the plastic bottle product 40 on the core die 361, so that the clamping is more stable; the plurality of clamping grooves formed in the clamping plate 3942 can simultaneously clamp a plurality of plastic bottle products 40 molded on the core mold assembly 36, and the use is more convenient.

Referring again to fig. 6, the core mold cooling assembly 38 may include a cavity mold 381 mounted on the fixed panel 311 of the fixed base 31, and an air passage connector 382 is mounted on the cavity mold 381, wherein the air passage connector 382 is used for connecting an air inlet pipe (not shown); a plurality of cavities 383 communicated with the air passage joint 382 are arranged in the cavity mold 381; when in use, the plurality of core dies 361 of the core die cooling assembly 38 can be respectively inserted into the plurality of cavities 383 of the cavity die 381, and low-temperature gas is introduced into the cavities 383 through the gas inlet pipe, so as to cool the core die cooling assembly 38. It will be appreciated that the construction of the core mold cooling assembly 38 is not limited to this example, and for example, in other embodiments, the core mold cooling assembly 38 may include only a gas blowing pipe (not shown) mounted to the fixing base 31, and in use, the core mold assembly 36 may be blown through the gas blowing pipe to cool a predetermined portion of the core mold assembly 36.

The mandrel assembly 36 is mounted on a turntable 341 and is capable of cooperating with the blank injection mold 35 to form a parison that is wrapped around the mandrel assembly 36, and the mandrel assembly 36 is capable of rotating with the turntable 341 to rotate the parison wrapped around the mandrel assembly 36 to the next station. In this embodiment, the vertical multi-station injection blow hollow molding machine includes four sets of core mold assemblies 36, where the four sets of core mold assemblies 36 are uniformly spaced around the rotation center of the turntable 341, and the four sets of core mold assemblies 36 respectively correspond to four stations, and each set of core mold assemblies 36 may include more than two core molds 361. The production efficiency can be further improved by the four sets of mandrel assemblies 36 working in cooperation with the assemblies on the four stations, respectively. The construction of the core module 36 is conventional and will not be described in detail herein for the sake of brevity. In the present embodiment, in order to better fit the core mold assembly 36 to the assemblies at the four stations, the lower movable mold plate 331 is provided with the clearance groove 334 and the clearance hole 335, the clearance groove 334 is opposite to the mouth mold assembly 353, and the core mold assembly 36 can be sequentially inserted into the mold assembly 353 and the injection cavity assembly 351 via the clearance groove 334 to perform the operation; the escape hole 335 is provided at a substantially central position of the lower movable platen 331, and the core mold assembly 36 can be selectively inserted into the blow mold assembly 372, the bottle releasing assembly 39, and the core mold cooling assembly 38 through the escape hole 335 to perform operations.

The injection system 20 is used to inject an injection into a hot runner of an injection cavity assembly 351 of an injection mold. The structure of the injection system 20 belongs to the prior art, for example, refer to the injection system in the chinese patent CN208896471U, and for brevity, the description is omitted here.

When the vertical multi-station injection blow hollow molding machine works, the lower movable mold plate driving piece 336 pulls the lower movable mold plate 331 downwards, the upper movable mold plate driving piece 323 pushes the upper movable mold plate 321 downwards, after the lower movable mold plate 331 and the upper movable mold plate 321 move downwards in place, the upper movable mold plate driving piece 323, namely a mold locking oil cylinder, performs pressurizing and mold locking, so that the injection cavity assembly 351, the core mold assembly 36 and the mouth mold assembly 353 are pressed together to realize mold closing, and then the injection system 20 performs injection molding in a hot runner of the injection cavity assembly 351 to obtain a parison. After the parison is injection-molded, pressure-maintaining and cooling, the upper movable mold plate driving piece 323, namely the mold locking oil cylinder is depressurized, then the lower movable mold plate driving piece 336 pushes the lower movable mold plate 331 to move upwards, meanwhile, the upper movable mold plate driving piece 323 also drives the upper movable mold plate 321 to move upwards to a preset height and then stops, the core mold assembly 36, the mouth mold assembly 353 and the injection molding obtained parison are separated from the injection cavity assembly 351, and then the mouth mold assembly 353 is opened to separate the mouth mold assembly 353 from the parison, and at the moment, the parison is only wrapped on the core mold assembly 36. Then, the upper movable mold plate 321 is driven by the upper movable mold plate driving member 323 to continue to ascend to a preset height and then stop, so that the core mold assembly 36 and the parison tightly wrapped on the core mold assembly 36 move vertically until the parison is separated from the mouth mold assembly 353, and then the rotary driving member 343 drives the rotary table 341 to rotate the core mold assembly 36 with the parison to the next station, in this embodiment, the wrapped parison is rotated to the blow molding mold 37 by the core mold assembly 36 to blow to obtain the hollow plastic bottle product 40.

Then, the bottle blowing mould assembly 372 is opened, the upper movable mould plate driving piece 323 drives the core mould assembly 36 and the hollow plastic bottle product 40 obtained is separated from the bottle blowing mould assembly 372, the blow-molded plastic bottle product 40 rotates to the bottle removing assembly 39 along with the core mould assembly 36 by the turntable 341, the plastic bottle product 40 is separated from the core mould assembly 36 under the action of the bottle removing assembly 39, specifically, the blow-molded plastic bottle product 40 rotates to the bottle removing station under the action of the core mould assembly 36, and the upper movable mould plate driving piece 323 drives the core mould assembly 36 and the plastic bottle product 40 on the movable core mould assembly 36 to move downwards, so that the screw part of the plastic bottle product 40 is positioned at the clamping plate 3942; then, the clamping driving member 3941 pushes the two clamping plates 3942 to approach each other, the two clamping plates 3942 clamp the screw part of the plastic bottle product 40, and the lifting driving member 393 pulls the lifting table 392 to move downwards along the guide rod 3912 for a certain distance, so that the plastic bottle product 40 is pulled out of the core mold assembly 36; finally, the clamping driving member 3941 pushes the two clamping plates 3942 away from each other to release the clamped plastic bottle product 40, and the plastic bottle product 40 naturally falls from the bottle falling opening 3923 to finish demolding.

The mandrel assembly 36 is then rotated by the turntable 341 to the mandrel cooling assembly 38 for cooling to the next operation. When the vertical multi-station injection blow hollow molding machine of the embodiment works, the injection mold 35 injects the parison, the blow molding mold 37 performs bottle blowing, the bottle removing assembly 39 performs bottle removing, and the core mold cooling assembly 38 performs core mold cooling. The vertical multi-station injection molding can be realized by circulating and reciprocating in this way, only one group of die assemblies 353 are used in the whole process, and the process requirements such as cooling of the core mold can be realized.

In the vertical multi-station injection blow hollow molding machine of the embodiment, the core mold 361 of the core mold assembly 36 is vertically arranged, the core mold assembly 36 intermittently rotates along with the turntable 341 by taking a vertical axis as a rotation center, the whole die is provided with only one group of die assemblies 353, and the die assemblies 353 are opened when the die is opened and ascended to a preset position and do not rotate along with the turntable 341, but drive the blanks to rotate to the next station through the core mold assembly 36, so that compared with the mode that the core mold of the horizontal multi-station injection blow molding machine of the prior art is horizontally arranged, the vertical multi-station injection blow hollow molding machine of the utility model has the advantages that the core mold assembly 36 intermittently rotates along with the vertical axis as the rotation center, and the probability of bending deformation of the parisons due to the resistance of air or the action of centrifugal force in the process of rotating along with the turntable 341 can be reduced; because the core mold assembly 36 extends from the bottle mouth of the parison to the bottle bottom of the parison, compared with the mode that the injection stretch blow hollow molding machine in the prior art only drives the parison to rotate through the mouth mold assembly outside the bottle mouth of the parison, the contact area between the core mold assembly 36 and the parison is larger, and the core mold assembly 36 positioned inside the parison can provide better support for the parison in the parison rotating process, so that the parison is prevented from bending deformation under the action of air resistance or centrifugal force or natural cooling shrinkage in the rotating process along with the rotating disk 341, and the yield of products is improved. Compared with the vertical multi-station injection blow molding machine in the prior art, the vertical multi-station injection blow molding hollow molding machine of the embodiment only needs one group of port die assemblies 353, so that the die cost is lower.

In the vertical multi-station injection blow hollow molding machine of this embodiment, the vent pipe is connected with the blowing component 371, the vent pipe of the blowing component 371 is connected with the blowing mold 3715 through the air passage connector, the blowing mold 3715 is driven by the blowing driving piece 3714 to move towards the position close to or far away from the core mold component 36, so that the air mold 3715 is in butt joint or separation with the core mold component 36, and the vent pipe can be prevented from winding in the rotating process of the turntable 341.

The vertical multi-station injection blow hollow molding machine of the embodiment adopts the vertical injection blow molding machine, and compared with a horizontal multi-station injection blow molding machine, the obtained product has better uniformity and higher quality. In the prior art, when a small-caliber bottle is produced, because the core mold is too small to transport water for cooling, the core mold cannot be kept at a constant temperature in the production process, and the parison is often stuck on the core mold and cannot be blown up, so that qualified small-caliber bottles cannot be continuously produced. In the vertical multi-station injection blow hollow molding machine of this embodiment, because the blowing component 371 and the mouth mold component 353 do not need to rotate, the pipe connected with the blowing component 371 and the mouth mold component 353 can be prevented from winding, so that the turntable 341 can rotate only in one direction, and an independent station can be conveniently arranged, namely, the core mold cooling component 38 can cool the core mold to be injection molded, so that qualified small-caliber bottles can be continuously produced, the molding process range is wider, the requirement on molding raw materials is lower, and the raw material selection is wider. And because its carousel 341 need not reciprocal rotation, can only rotate towards one direction, it is favorable to improving production efficiency, and more convenient control.

It will be appreciated that the number of stations in the vertical multi-station injection blow molding machine is not limited to four in this example, for example, in other embodiments, the mandrel cooling assembly 38, etc. may not be provided; or the core mold cooling assembly 38 can be replaced with a core mold heat preservation assembly in the prior art according to the process requirement, and the core mold heat preservation assembly is used for carrying out heat preservation treatment on the core mold; or other stations can be added as required.

It will be appreciated that the structure of the fixing base 31 is not limited to the present embodiment, and can be adjusted as required.

The foregoing description is directed to the preferred embodiments of the present utility model, but the embodiments are not intended to limit the scope of the utility model, and all equivalent changes or modifications made under the technical spirit of the present utility model should be construed to fall within the scope of the present utility model.

Claims (10)

1. The utility model provides a vertical multistation annotates blows cavity make-up machine, includes frame (10) and installs injection moulding mode locking mechanism (30) on frame (10), its characterized in that, injection moulding mode locking mechanism (30) include:

the fixed seat (31), the fixed seat (31) is installed on the frame (10), and the fixed seat (31) is provided with at least two stations at intervals;

The upper movable template assembly (32) comprises an upper movable template (321) and an upper movable template driving piece (323), wherein the upper movable template (321) is slidably arranged on the fixed seat (31), and the upper movable template driving piece (323) is connected with the upper movable template (321) so as to drive the upper movable template (321) to vertically reciprocate;

the lower movable die plate assembly (33) comprises a lower movable die plate (331) and a lower movable die plate driving piece (336), wherein the lower movable die plate (331) is positioned below the upper movable die plate (321), and the lower movable die plate (331) is slidingly arranged on the fixed seat (31); the lower movable die plate driving piece (336) is connected with the lower movable die plate (331) to drive the lower movable die plate (331) to reciprocate vertically;

the rotary disc assembly (34) comprises a rotary disc (341) and a rotary driving piece (343), wherein the rotary disc (341) is positioned between the upper movable die plate (321) and the lower movable die plate (331), and the rotary driving piece (343) is arranged on the upper movable die plate (321) and is connected with the rotary disc (341) so as to drive the rotary disc (341) to intermittently rotate by taking a vertical axis as a rotation center; and

the blank injection mold (35) comprises an injection cavity assembly (351) and a die assembly (353), wherein the injection cavity assembly (351) is arranged at one station of the fixed seat (31) and is positioned below the lower movable mold plate (331); the die assembly (353) is arranged on the lower movable die plate (331) and is positioned right above the injection cavity assembly (351); and

A mandrel assembly (36), the mandrel assembly (36) is mounted on the turntable (341), the mandrel assembly (36) is capable of cooperating with the blank injection mold (35) to form a parison wrapped on the mandrel assembly (36), and the mandrel assembly (36) is capable of rotating with the turntable (341) to rotate the parison wrapped on the mandrel assembly (36) to the next station.

2. The vertical multi-station injection blow hollow molding machine according to claim 1, wherein the injection mold locking mechanism (30) comprises a blow molding mold (37), the blow molding mold (37) comprises a blowing component (371) and a bottle blowing mold component (372) located right below the blowing component (371), the blowing component (371) is installed on the upper movable mold plate (321), and the bottle blowing mold component (372) is installed on other stations of the fixed seat (31) and located below the lower movable mold plate (331).

3. The vertical multi-station injection blow hollow molding machine according to claim 2, wherein four stations are arranged at intervals along the rotation direction of the turntable (341) on the fixing seat (31), the bottle removing assembly (39) and the core mold cooling assembly (38) are arranged on the fixing seat (31) and below the lower movable mold plate (331), and the injection cavity assembly (351), the bottle blowing mold assembly (372), the bottle removing assembly (39) and the core mold cooling assembly (38) are sequentially arranged at the four stations along the rotation direction of the turntable (341).

4. A vertical multi-station injection blow hollow molding machine according to claim 3, wherein said injection mold comprises four sets of said core mold assemblies (36), said four sets of said core mold assemblies (36) being disposed at regular intervals around the center of rotation of said turntable (341), said four sets of said core mold assemblies (36) corresponding to each of said four stations.

5. A vertical multi-station injection blow hollow molding machine according to claim 3, wherein a clearance groove (334) is formed in the lower moving platen (331), the clearance groove (334) is opposite to the die assembly (353), and the core mold assembly (36) can be sequentially inserted into the die assembly (353) and the injection cavity assembly (351) through the clearance groove (334).

6. The vertical multi-station injection blow hollow molding machine according to claim 2, wherein the blow assembly (371) comprises a support frame (3711), a blow driving piece (3714) and a blow mold (3715), the support frame (3711) is fixed on the upper movable mold plate (321), the blow driving piece (3714) is arranged on the support frame (3711) and is connected with the blow mold (3715), the blow mold (3715) is provided with an air passage connector, the air passage connector is used for connecting a vent pipe, and an air inlet channel communicated with the air passage connector is arranged in the blow mold (3715); the blow drive (3714) can drive the blow mold (3715) toward the core mold assembly (36) until the blow mold (3715) interfaces with the core mold assembly (36) at the blow station and places the air intake channel in communication with the core mold assembly (36), or the blow drive (3714) can drive the movement of the blow mold (3715) away from the core mold assembly (36) until the blow mold (3715) is separated from the core mold assembly (36).

7. The vertical multi-station injection blow molding machine according to claim 1, wherein the upper movable platen driving member (323) and the lower movable platen driving member (336) are both mounted on the fixed base (31).

8. The vertical multi-station injection blow hollow molding machine according to claim 7, wherein the fixing base (31) comprises a fixing panel (311), a guide post (313) and a mounting plate (314), the fixing panel (311) is fixed at the bottom end of the guide post (313), the mounting plate (314) is fixed at the top end of the guide post (313), the upper movable mold plate (321) and the lower movable mold plate (331) are arranged between the fixing panel (311) and the mounting plate (314) in parallel and are both arranged on the guide post (313) in a sliding manner, the upper movable mold plate driving part (323) is arranged on the mounting plate (314), the lower movable mold plate driving part (336) is arranged on the fixing panel (311), and the station is arranged on the fixing panel (311).

9. The vertical multi-station injection blow hollow molding machine according to claim 1, wherein the upper movable mold plate driving member (323) is a mold locking cylinder, and the lower movable mold plate driving member (336) comprises a plurality of lifting cylinders which are distributed at intervals along the circumferential direction of the lower movable mold plate (331).

10. A vertical multi-station injection blow molding machine as claimed in claim 3, wherein the bottle-removing assembly (39) comprises a base (391), a lifting table (392), a lifting driving member (393) and two clamping members (394), the base (391) being fixed on the fixed seat (31); the lifting table (392) is connected with the base (391) in a sliding way; the lifting driving piece (393) is connected with the lifting table (392) to drive the lifting table (392) to move vertically; the two clamping pieces (394) are oppositely arranged at intervals, each clamping piece (394) comprises a clamping driving piece (3941) arranged on the lifting table (392) and clamping plates (3942) connected with the clamping driving piece (3941), the clamping plates (3942) of the two clamping pieces (394) are respectively positioned on two opposite sides of the core module (36) of the corresponding station, and can be driven by the clamping driving pieces (3941) to mutually approach to clamp plastic bottle products molded on the core module (36) of the corresponding station or mutually depart from each other to release plastic bottle products molded on the core module (36) of the corresponding station.