CN118927499B

CN118927499B - PET bottle blank processing assembly and PET bottle blank processing method

Info

Publication number: CN118927499B
Application number: CN202411084572.2A
Authority: CN
Inventors: 张凯; 钟潭水; 廖家梅; 丁林正; 廖继宽
Original assignee: Guangdong Gongfu Industrial Co ltd
Current assignee: Guangdong Gongfu Industrial Co ltd
Priority date: 2024-08-08
Filing date: 2024-08-08
Publication date: 2025-04-22
Anticipated expiration: 2044-08-08
Also published as: CN118927499A

Abstract

The invention relates to the technical field of PET bottle blank processing, in particular to a PET bottle blank processing assembly and a PET bottle blank processing method, which can automatically complete even feeding of PET materials and a lower die through equipment and complete injection molding processing of PET bottle blanks, do not need any manual operation in the process, can simultaneously perform injection molding on a large number of PET bottle blanks, have extremely high production efficiency, can simultaneously perform automatic cooling and demolding and transfer feeding of blow molding, and comprises a processing round table, wherein the inner side of the end part of the processing round table is in cross-shaped rotation connection with the lower die, one side of the end part of the processing round table is provided with a feeding table, the end part of the processing round table is in fit sliding connection with the upper part in the side surface of the feeding table, and the top end of the feeding table is in driving connection with a hopper which slides back and forth.

Description

PET bottle blank processing assembly and PET bottle blank processing method

Technical Field

The invention relates to the technical field of PET bottle blank processing, in particular to a PET bottle blank processing assembly and a PET bottle blank processing method.

Background

The PET bottle blank processing assembly is a generic name of mechanical equipment and tools for producing polyethylene terephthalate (PET) bottle blanks, the PET bottle blanks are raw materials used for processing and producing various PET bottle bodies, a blow molding machine is needed to be used for processing the PET bottle bodies, the PET bottle bodies are heated to a certain degree, air is blown into the PET bottle blanks through the blow molding machine, the bottle blanks are uniformly spread, and the bottle bodies are formed through cooling.

The production of PET bottle base needs to use the PET granule raw materials to get into the bed die of injection molding machine through the pay-off in, the hot melt of PET granule is accomplished through the heating of bed die, later press into the bed die inboard through last mould, accomplish the processing of PET bottle base, traditional processing equipment needs many equipment combination processing, the step is numerous and need many manual operations, it is very loaded down with trivial details, production efficiency is not enough simultaneously, production continuity is poor, comparatively waste time to the drawing of patterns of bottle base influences production machining efficiency.

Accordingly, there is a need to provide a PET bottle preform processing assembly and a PET bottle preform processing method that solve the above-mentioned problems.

Disclosure of Invention

In order to solve the technical problems, the invention provides the PET bottle blank processing assembly and the PET bottle blank processing method, which can automatically complete the uniform feeding of PET materials and a lower die through equipment and complete the injection molding processing of PET bottle blanks, do not need any manual operation in the process, can simultaneously perform injection molding on a large number of PET bottle blanks, have extremely high production efficiency, and can simultaneously perform automatic cooling, demoulding and transfer feeding of blow molding.

The PET bottle blank comprises a bottle body, wherein the bottom of the bottle body is provided with a round bottom, a bottom melting accumulation block is arranged in the center of the bottom of the round bottom, a bottle opening is arranged at the top of the bottle body, a bottle opening injection molding ring is arranged between the bottle opening and the bottle body, the top surface of the bottle opening injection molding ring is fixed with the bottle opening, and the bottom surface of the bottle opening injection molding ring is fixed with the top surface of the bottle body.

The invention provides a PET bottle blank processing assembly, which comprises:

The processing round platform, processing round platform tip inboard is the cross and rotates and be connected with the bed die, processing round platform tip one side is equipped with the material loading platform, processing round platform tip upper portion laminating sliding connection in the material loading platform side, material loading platform top drive is connected with reciprocal gliding hopper, hopper bottom inboard discharge gate position rotates and is connected with the feed roll, feed roll and the transmission of material loading platform top surface are connected, the position that processing round platform connected the material loading platform is the cross and is equipped with hydraulic pressure injection molding seat, blow molding transfer mechanism in proper order, take off the material platform, hydraulic pressure injection molding seat and blow molding transfer mechanism output power end are located processing round platform directly over, the one section outer wall middle part of processing round platform is connected with taking off the material platform meshing to the bed die, take off the material platform outside and be equipped with take off the material and collect the fill, take off the material and collect the fill and be located under the bed die, hydraulic pressure injection molding seat and blow molding transfer mechanism between the mechanism output end is located processing round platform top, processing round platform top surface transmission mode, can utilize four groups lower templates simultaneously to take off the drawing of patterns, mould plastics, automatic cooling down and can not cut off the intermittent processing round PET base in a round way simultaneously.

Preferably, the inside bed die that is connected with circumference distribution that rotates of processing round platform, the injection molding die chamber that the equidistance distributes has been seted up to the bed die top surface, the one side center department that the bed die is connected processing round platform is fixed with the pivot, pivot middle part outer wall is fixed with takes off the material gear, the pivot distal end is connected with the inside spacing rotation of processing round platform, processing round platform bottom is located hydraulic pressure injection molding seat opposite face one side below and is equipped with takes off the material platform, take off the material platform and use the processing round platform as the center, take off the material platform itself and be half arc structure, take off the material platform top surface and be fixed with the equidistance and distribute take off the material pinion rack, take off material gear and take off the transmission of material pinion meshing, processing round platform bottom surface center department is equipped with the rotary drive seat, rotary drive seat output and processing round platform bottom surface rotary drive are connected, and processing round platform position is through taking off the meshing transmission mode of material gear and taking off the material platform, can accomplish the upset of bed die under the circumstances that need not power consumption, accomplish the automatic drawing of patterns bottle base.

Preferably, the position both sides that the bed die was connected to the processing round platform are equipped with symmetrical plane ejector pad, the plane ejector pad deviates from the one side of bed die and is fixed with horizontal push rod, horizontal push rod other end is fixed in the one side of processing round platform connection plane ejector pad inside, the one end upper and lower both sides that the processing round platform was connected to the plane ejector pad are fixed with symmetrical cladding piece, cladding piece laminating slides in processing round platform surface inboard, cladding piece upper and lower surface is parallel with processing round platform surface, the one side inboard that plane ejector pad and bed die laminate mutually is all embedded to be fixed with the permanent magnetism piece, magnetic adsorption laminating between the permanent magnetism piece, and the plane ejector pad that the bed die position was connected to the processing round platform can utilize the permanent magnet to adsorb the bed die after the bed die resets, ensures the accuracy that resets, can utilize cladding piece cladding to bed die both sides position after the plane ejector pad resets the bed die simultaneously, and can not appear the clearance, ensures the inside precision of material loading of bed die and avoid the material to fall into the clearance inside.

Preferably, the feeding groove is formed in the position, connected with the processing round table, of the feeding table, the processing round table is attached to and slides on the inner surface of the feeding groove, the horizontal sliding table is arranged on two sides of the top end of the feeding table, a limit sliding groove equal to the length of the lower die is formed in the middle of the horizontal sliding table, symmetrical fixed toothed plates are fixed on the outer walls of two sides of the horizontal sliding table, a blanking transmission toothed plate equal to the length of the lower die is fixed on the top surface of the horizontal sliding table, the hopper is in limit sliding connection with the top surface of the horizontal sliding table, one surface of the hopper is embedded with the inner side of the limit sliding groove, two sides of the hopper is coated and slid on the outer side of the top of the feeding table, a first motor is fixed at the positions of two ends of the hopper, a driving gear is meshed with the fixed toothed plates, a triangular feeding plate is fixed below the inner side of the hopper, a material blocking block is fixed on the opposite surfaces of the triangular feeding plate, a material outlet is formed between the material blocking block and the triangular feeding plate, a material distributing roller is connected on the inner side of the discharge opening in a rotating mode, two ends of the material distributing roller are connected with the inner side of the horizontal sliding table in a rotating mode, two sides of the hopper are connected with the inner sides of the hopper, the material distributing roller in a sliding mode, the two ends of the hopper are in a sliding mode, the material sweeping roller is located in the inner side of the hopper and the side of the lower die is in a mode of the triangular feeding plate, the symmetric plate is meshed with the fixed toothed plate, a material plate is fixed on the upper side of the upper plate, and the triangular feeding plate is fixed on the upper side of the lower die plate, and the material plate is fixed on the upper side of the lower die plate. And evenly delivering the materials downwards.

Preferably, the hydraulic pressure seat top output of moulding plastics is connected with the platform of moulding plastics, the platform distal end of moulding plastics is located processing round platform top, mould mounting groove has been seted up to the inboard of platform distal end of moulding plastics, mould mounting groove inboard is equipped with the last mould of embedded block, it is connected with the wire cable to go up mould top surface both sides, the wire cable other end is connected with the platform electricity of moulding plastics, it is equipped with the bottle base pole of moulding plastics of equidistance distribution to go up the mould bottom surface, bottle base pole of moulding plastics corresponds with the die cavity of moulding plastics, the bottle base is moulded plastics the inside heating pipe that is equipped with of pole, the heating pipe is connected with last mould electricity, the position of die cavity of moulding plastics is connected to the lower mould is equipped with electromagnetic heating circle, electromagnetic heating circle cover closes in the die cavity outside of moulding plastics, and the platform of moulding plastics can be dismantled with last mould and be connected, when processing different grade type thickness PET bottle base, quick replacement goes up the mould and is suitable for.

Preferably, the cooling mechanism comprises a cooling air pump, the top of the cooling air pump is connected with a flow dividing frame, the far end of the flow dividing frame is located above the processing round table, air nozzles which are arranged at equal intervals are connected to the bottom surface of one end of the flow dividing frame above the processing round table, air inlet ports of the air nozzles are communicated with the cooling air pump, and the cooling air pump can continuously provide cooling air for the inner parts of the air nozzles and cool the air blown by the lower die in the moving process.

Preferably, the blow molding transfer mechanism comprises a hydraulic lifting seat, a blow molding transfer table is connected to the output end of the top of the hydraulic lifting seat, the blow molding transfer table is located above the processing round table after two ends of the blow molding transfer table rotate, air cavities are formed in the two sides of the blow molding transfer table, rubber air nozzles corresponding to the injection molding cavities are connected under the air cavities, the rubber air nozzles are communicated with the air cavities, an air pump and a vacuum pump are respectively fixed on the two sides of the top surface of the blow molding transfer table, the air pump and the output port of the vacuum pump are communicated with the air cavities in the two sides of the blow molding transfer table, the blow molding table adsorbs and clamps PET bottle blanks through the rubber air nozzles on the two sides, and after displacement is completed, the PET bottle blanks are separated from the rubber air nozzles through the air pump.

Preferably, the position that the blowing transferred the platform is connected at hydraulic lifting seat top is equipped with spacing mount pad, the blowing transfers the spacing cover of platform in spacing mount pad outside, the inside dead screw that is equipped with the screw thread and connects soon of spacing mount pad, dead screw bottom surface butt is at blowing transfer platform top surface, the position that the blowing transferred the platform is connected to hydraulic lifting seat top output is equipped with the bearing, the bearing is transferred platform bottom surface butt with blowing, hydraulic lifting seat output top surface outside is connected with annular pinion rack, hydraulic lifting seat bottom surface both sides are fixed with symmetrical second motor, second motor and annular pinion rack meshing transmission, hydraulic lifting seat and blowing transfer platform detachable connection for the blowing transfer platform can be according to the in-service use mode, changes the blowing transfer platform of different grade type, for example changes the blowing transfer platform of unilateral rubber air cock.

The processing method of the PET bottle blank processing component provided by the invention comprises the following steps:

1. The output end of the rotary driving seat drives the processing round table to rotate, in the rotating process, the lower die distributed in a cross manner is respectively displaced to the inside of the feeding table, the right lower part of the upper die at the bottom of the injection molding table, the right lower part of the rubber air tap at one side of the blow molding transfer table and the upper part of the stripping collecting hopper, the lower die positioned in the feeding table is driven by a first motor to drive the hopper to move, meanwhile, in the moving process of the hopper, the material distributing roller rotates simultaneously, materials in the hopper are uniformly fed to the inner side of the lower die, and in the discharging process, the material blocking plate can block redundant materials under the hopper;

The lower die is driven to rotate by a processing round table after the feeding of the hopper is completed, the lower die is moved to the lower part of an upper die in the hydraulic injection molding table, materials in the lower die are heated, softened and fused by an electromagnetic heating ring in the moving process, the upper die is driven to move downwards by a hydraulic injection molding seat, the softened fused materials are extruded and injected to form bottle blanks, then the upper die is separated from the lower die, the lower die is driven to rotate and move by the processing round table, a cooling gas is sprayed out by an air nozzle in the moving process of the lower die to cool the bottle blanks in the lower die, the lower die is moved to the position right below a blow molding transfer table, a hydraulic lifting seat is started to drive the blow molding transfer table to move downwards, the rubber air nozzle is attached to the bottle blanks after the injection molding is completed, at the moment, a vacuum pump is started to extract and absorb all the bottle blanks, the hydraulic lifting seat is lifted to drive all the bottle blanks and the lower die to be demolded, a second motor is started to drive the blow molding transfer table to rotate, the bottle blanks after the demolding is completed to rotate to one side, the bottle blanks are directly blown and processed by the blow molding equipment, the lower die is continuously rotated along with the processing round table after the movement of the upper die, and the bottle blanks are continuously fed to the position of the upper die;

2. if the bottle blank does not need direct processing blowing, after the air nozzle cooling, the lower mould moves to the position of the stripping table under the drive of the processing round table, at this time, the stripping gear is meshed with the stripping toothed plate, the lower mould rotates and overturns under the drive of the stripping gear, simultaneously, the horizontal push rod starts to shrink, the plane push block shrinks towards two sides, a rotating space is provided for the rotation of the lower mould, the lower mould rotates to the middle part above the stripping collecting hopper, the lower mould is in a complete overturning state, the bottle blank in the injection mould cavity falls to the inner side of the stripping collecting hopper under the gravity, then the processing round table rotates, the stripping gear and the stripping toothed plate are meshed to drive the lower mould to rotate and overturned to the front, after the overturning of the lower mould is completed, the horizontal push rod starts to push the plane push block to be attached to the lower mould, the lower mould is in a parallel state and moves to the upper material table, and the lower mould is internally fed by the hopper.

Compared with the related art, the PET bottle blank processing assembly and the PET bottle blank processing method provided by the invention have the following beneficial effects:

1. the invention adopts an annular processing assembly matching mode, can automatically complete the injection, compression column, cooling and demoulding of the PET bottle blank through the rotation of the processing round table, has extremely high production efficiency without any manual intervention in the production process, and can realize the blow molding transfer of the bottle blank by a blow molding transfer mechanism after the injection molding of the PET bottle blank is completed, thereby realizing the application of various functionalities.

2. The mode that material loading platform position adopted the material loading groove to combine together with processing round platform can let the hopper inject into the PET granule to the bed die inside fast, accomplishes the packing of raw materials, and the mode that the hopper bottom adopts feed divider roller and horizontal slip table transmission to be connected simultaneously can accomplish automatic unloading feed divider at the mode that the hopper removed, feed divider roller and horizontal slip table upper portion unloading transmission pinion rack meshing, guarantees the pan feeding homogeneity of the inside PET material of bed die.

3. The hydraulic injection molding seat top injection molding table has the function of changing and installing an upper die, can be quickly detached and replaced when producing and processing PET bottle blanks with different types or thicknesses, improves the PET bottle blank processing applicability of the device, and is internally provided with a heating pipe, so that the heating pipe can heat the heating pipe before injection molding, and the injection molding quality of the PET bottle blanks is improved.

4. The blow molding transfer mechanism can directly finish transferring the bottle blank after injection molding when the PET bottle body is required to be directly blow molded, the bottle blank to be blow molded is transferred to the inside of blow molding equipment, the practical functionality of the device is improved, and the blow molding transfer mechanism top blow molding transfer table has the functions of vacuumizing and blowing air, and can stably clamp and send out the bottle blank.

5. One side of the processing round table, which is away from the hydraulic injection molding table, is provided with a stripping table, a stripping gear at the joint of the lower die and the processing round table is meshed, the lower die is driven to rotate, the PET bottle blank after injection molding and cooling is turned over and fed into the collecting area, and the demolding and the collection of the PET bottle blank are completed.

Drawings

FIG. 1 is a schematic diagram of a PET bottle preform according to the present invention

FIG. 2 is a schematic view of a PET bottle preform processing assembly and a PET bottle preform processing method according to a preferred embodiment of the present invention;

FIG. 3 is a schematic exploded view in cross-section of the structure of the loading station shown in FIG. 2;

FIG. 4 is a schematic view of the structural drive of the hopper position shown in FIG. 3;

FIG. 5 is an exploded, enlarged schematic view in cross-section of the structure of the interior of the hopper shown in FIG. 4;

FIG. 6 is an enlarged schematic view of the middle section of the processing bench shown in FIG. 2;

FIG. 7 is an enlarged exploded schematic view in cross-section of the location of the processing table shown in FIG. 6 in connection with the lower mold;

FIG. 8 is an enlarged, exploded, schematic view in cross-section of the hydraulic mount shown in FIG. 2;

FIG. 9 is a schematic view of the blow molding transfer mechanism of FIG. 2;

FIG. 10 is an exploded, enlarged schematic view in cross-section of the structure of the blow-molding transfer station position shown in FIG. 9.

The reference number in the figure is 1, the bottle body; 101, a circular bottom; 102, melting a bottom stacking block; 103, bottle opening injection rings, 104, bottle opening, 2, processing round platforms, 21, lower molds, 22, injection mold cavities, 23, rotating shafts, 24, stripping gears, 25, stripping platforms, 26, stripping toothed plates, 27, rotary driving seats, 201, plane pushing blocks, 202, horizontal push rods, 203, coating plates, 204, permanent magnets, 3, feeding platforms, 301, feeding tanks, 302, horizontal sliding tables, 303, limit sliding grooves, 304, fixed toothed plates, 305, blanking driving toothed plates, 4, hoppers, 401, triangular feeding plates, 402, blocking blocks, 403, discharge holes, 404, distributing rollers, 405, sweeping toothed plates, 406, driven gears, 407, driving gears, 408, first motors, 5, hydraulic injection seats, 501, injection platforms, 502, mold mounting grooves, 503, upper molds, 504, guide cables, 505, bottle blank injection rods, 506, heating pipes, 507, electromagnetic heating rings, 6, cooling mechanisms, 601, cooling air pumps, 602, split frames, 603, nozzles, 7, transfer mechanisms, 71, mounting brackets, 73, 75, air nozzles, 75, 8, blow molding seats, 75, blow molding machines, 75, blow molding machines.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

Specific implementations of the invention are described in detail below in connection with specific embodiments.

In the technical scheme, the output mode of the rotary driving seat is stepping motor driving, the hydraulic injection molding seat and the hydraulic lifting seat are both hydraulic cylinder driving, the first motor and the second motor are servo motors, and the cooling air pump is YWYX mechanical cooling blowing vortex air pump.

Referring to fig. 1-10, a PET bottle blank provided in an embodiment of the present invention includes:

the bottle body 1, 1 bottom of bottle is equipped with circular end 101, 1 top of bottle is connected with bottleneck 104, be equipped with bottleneck ring 103 of moulding plastics between bottleneck 104 and the 1 of bottle, circular end 101 bottom center department is equipped with melts the end and piles up soon, 1 when the PET bottle base carries out the blowing bottle, can enlarge the side outer wall elasticity of bottle, bottle end and melt end heap 102, then can keep the bottle bottom to possess sufficient PET material in the blowing process of PET bottle base, possess sufficient strength's bottle end, bottleneck ring 103 of moulding plastics can be in the blowing process of PET bottle base, guarantee the material hardness of bottle mouth.

Referring to fig. 1 to 10, a PET bottle preform processing assembly according to an embodiment of the present invention includes:

The processing round table 2, processing round table 2 bottom surface center department is equipped with rotary driving seat 27, and rotary driving seat 27 passes through step motor's driving method, drives processing round table 2 rotation, and processing round table 2 inside four-end is the cross and rotates to be connected with bed die 21, and bed die 21 multiunit design can be quick and incessantly to PET bottle base material loading, injection molding and cooling drawing of patterns, and the injection molding die cavity 22 that the equidistance was arranged has been seted up to bed die 21 top surface inboard.

One side of the lower die 21, which is connected with the processing round table 2, is fixedly provided with a rotating shaft 23 which is rotationally connected with the processing round table 2, the outer wall of the middle part of the rotating shaft 23 is connected with a stripping gear 24, a stripping table 25 is arranged below the stripping gear 24 at the bottom of one side of the processing round table 2, the stripping table 25 is of a semi-arc structural design, the top surface of the stripping table 25 is connected with a stripping toothed plate 26, the stripping toothed plate 26 is in meshed transmission with the stripping gear 24, the processing round table 2 is rotated through the stripping gear 24, the stripping gear 24 is meshed with the stripping toothed plate 26, and accordingly the lower die 21 is driven to rotate and overturn, and demolding of bottle blanks is completed.

The processing round platform 2 is connected with the horizontal sliding connection of both sides of the position of the lower die 21 and is provided with a plane push block 201, one surface of the plane push block 201, which is close to the processing round platform 2, is connected with a horizontal push rod 202, the other end of the horizontal push rod 202 is embedded and fixed on the inner side of the processing round platform 2, the plane push block 201 is pushed to displace through the horizontal push rod 202, a rotating space can be provided for the lower die 21 in the rotating process of the lower die 21, and meanwhile, after the rotation is completed, the lower die 21 can be clamped and ensured to be horizontally stable.

The upper end and the lower end of the plane pushing block 201 are fixedly provided with symmetrical cladding sheets 203, the cladding sheets 203 are attached and slide on the inner side of the surface of the processing round table 2, the cladding sheets 203 can ensure the horizontal effect of the surface of the processing round table 2 in the pushing process of the plane pushing block 201, gaps are avoided, permanent magnets 204 are embedded and connected on the inner sides of the opposite surfaces of the plane pushing block 201 and the lower die 21, and the permanent magnets 204 can provide magnetic force after the lower die 21 is turned to a certain angle, so that the lower die 21 can be quickly reset and kept horizontal.

The processing round platform 2 one side is equipped with material loading platform 3 with take off material platform 25 adjacent position, material loading platform 3 inside has seted up material loading groove 301, processing round platform 2 and material loading groove 301 internal surface laminating sliding connection, material loading groove 301 top spacing sliding connection has hopper 4, hopper 4 bottom and the horizontal slip table 302 both sides drive connection of material loading platform 3 top surface, drive the fixed pinion rack 304 meshing of driving gear 407 and horizontal slip table 302 both sides through the first motor 408 of hopper 4 bottom both sides, can accomplish the reciprocal slip of hopper 4, and be connected with the feed divider roller 404 in the inboard bottom swivelling joint of hopper 4, feed divider roller 404 both ends are connected with driven gear 406, driven gear 406 meshes with the unloading transmission pinion rack 305 of horizontal slip table 302 top surface again, can accomplish the rotatory of feed divider roller 404 at hopper 4 displacement in-process, the function of evenly unloading to material loading groove 301 inside.

The both sides that divide material roller 404 are connected to hopper 4 bottom are equipped with triangle charge plate 401 and block piece 402 respectively, can send the both sides of material to divide material roller 404 to avoid the material to drop to the below through dividing material roller 404 both sides gap, hopper 4 bottom is located and divides material roller 404 both sides to be fixed with symmetrical sweep material piece 405, sweeps material piece 405 can be in the reciprocating slip of hopper 4 annotate the material in-process to bed die 21, collects unnecessary material in hopper 4 below, avoids the material to scatter, can scrape the unnecessary material to send to bed die 21 inside again simultaneously.

In the process that the lower die 21 moves to the lower side of the hydraulic injection molding seat 5 under the driving of the processing round table 2, the electromagnetic heating ring 507 in the injection molding cavity 22 of the lower die 21 heats and softens materials, when the lower die 21 moves to the lower side of the hydraulic injection molding seat 5, the hydraulic cylinder in the hydraulic injection molding seat 5 is started to drive the injection molding table 501 to move downwards, the upper die 503 and the lower die 21 are covered, extrusion injection molding of the materials in the lower die 21 is completed, and the materials form bottle blanks.

It should be noted that, the heating pipe 506 is adopted to heat the interior of the bottle blank injection molding rod 505 at the bottom of the upper mold 503, so that the bottle blank injection molding rod 505 has a preheating function and can perform hot melt injection molding on the material in the lower mold 21, thereby ensuring the injection molding quality of the bottle blank, wherein the top of the upper mold 503 is provided with an injection port, and the injection port is internally injected with the injection port to extrude and mold.

It should be noted that, the injection molding table 501 and the upper mold 503 are designed to be separable, when bottle blanks of different types or sizes need to be injection molded, the guide cable 504 can be separated, the upper mold 503 is taken out, and the upper mold 503 is replaced, thereby completing injection molding of bottle blanks of different types.

The molded bottle blank moves along with the processing round table 2, in the moving process, the cooling mechanism 6 blows air to the surface of the processing round table 2 and the inside of the lower die 21 through the cooling air pump 601, cools the molded bottle blank, and generates a gap between the bottle blank and the die through high-pressure blowing to perform pre-demolding between the bottle blank and the die.

When the cooled bottle blanks are moved to the lower part of the blow molding transfer mechanism 7 by the processing round table 2, if the bottle blanks in the batch are required to be blow molded, the hydraulic lifting seat 701 can be started to drive the blow molding transfer table 702 to descend, the rubber air tap 704 is utilized to extend into the bottle blanks, the air cavity 703 is sucked by the vacuum pump 706, the bottle blanks are adsorbed on the outer side of the rubber air tap 704, then the bottle blanks in the batch can be transferred into one side blow molding equipment through the lifting and rotating of the hydraulic lifting seat 701, when the bottle blanks are separated, the air feeding pump 705 can be started, the vacuum pump 706 is closed, the thrust is applied to the bottle blanks, and the bottle blanks are separated from the rubber air tap 704.

It should be noted that, the blow molding transfer table 702 is detachably connected with the hydraulic lifting seat 701, and the blow molding transfer table 702 can be separated and replaced by using different types of blow molding transfer tables 702 through the separation of the limit mounting seat 71 and the fixing screw 72.

During the rotation of the blow molding transfer table 702, the output end of the second motor 75 on the bottom surface of the blow molding transfer table 702 is meshed with the annular toothed plate 74 to provide rotation power for the blow molding transfer table 702.

When the bottle blank does not need to be blow molded, the bottle blank can move to the position of a stripping table 25 through the driving of the processing round table 2, and the lower die 21 can rotate to turn over and strip materials through the engagement of the stripping gear 24 and the stripping toothed plate 26, so that the bottle blank is demolded and collected to the inner side of the stripping collecting hopper 8.

Referring to fig. 1 to 10, a processing method of a PET bottle preform processing assembly according to an embodiment of the present invention includes:

1. The output end of the rotary driving seat 27 drives the processing round table 2 to rotate, in the rotating process, the lower dies 21 distributed in a cross manner are respectively displaced into the upper die 3 of the feeding table 3, under the upper die 503 at the bottom of the injection molding table 501, under the rubber air nozzle 704 at one side of the blow molding transfer table 702 and above the stripping collecting hopper 8, and are positioned in the lower die 21 in the feeding table 3, and the hopper 4 is driven to move by the first motor 408, meanwhile, in the moving process of the hopper 4, the material distributing roller 404 rotates simultaneously, materials in the hopper 4 are uniformly fed into the inner side of the lower die 21, and in the discharging process, the material blocking plate can block excessive materials under the hopper 4;

The lower die 21 is driven to rotate by the processing round table 2 after the feeding of the hopper 4 is completed, the lower die 21 is moved to the position below the upper die 503 in the hydraulic injection molding table 501, materials in the lower die 21 are heated and softened and fused by the electromagnetic heating ring 507 in the moving process, at the moment, the upper die 503 is driven to move downwards by the hydraulic injection molding seat 5, the softened and fused materials are extruded and injected to form bottle blanks, then the upper die 503 is separated from the lower die 21, the lower die 21 is driven to move rotationally by the processing round table 2, the air nozzle 603 sprays cooling gas to cool bottle blanks in the lower die 21 in the moving process, the lower die 21 is moved to the position right below the blow molding transfer table 702, the hydraulic lifting seat 701 is started to drive the blow molding transfer table 702 to move downwards, the rubber air nozzle 704 is attached to the bottle blanks in the injection molding process, at the moment, the vacuum pump 706 is started to extract and adsorb all the bottle blanks, the hydraulic lifting seat 701 is lifted to drive all the bottle blanks to be demolded with the lower die 21, the second motor 75 is started to drive the blow molding transfer table 702 to rotate, the demolded bottle blanks to one side, the bottle blanks are directly processed by demolding, the bottle blanks are conveyed into the blow molding equipment to the upper die 21, the upper die 21 is rotated, and the upper die 2 is moved to the position for continuous processing of the bottle blanks, and the bottle blanks are processed, and the blow molding blanks are processed, and the upper die 3 is continuously processed;

2. If the bottle blank does not need to be directly processed and blow-molded, after being cooled by the air nozzle 603, the lower die 21 is driven by the processing round table 2 to move to the position of the stripping table 25, at this time, the stripping gear 24 is meshed with the stripping toothed plate 26, the lower die 21 is driven by the stripping gear 24 to rotate and turn over, the lower die 21 rotates, meanwhile, the horizontal push rod 202 starts to shrink, the plane push block 201 shrinks to two sides, a rotating space is provided for the rotation of the lower die 21, when the lower die 21 rotates to the middle part above the stripping collecting hopper 8, the lower die 21 is in a complete overturning state, the bottle blank in the injection molding cavity 22 falls to the inner side of the stripping collecting hopper 8 under the gravity, then the processing round table 2 rotates, the stripping gear 24 is meshed with the stripping toothed plate 26 to drive the lower die 21 to rotate and turn over to the front, after the lower die 21 is turned over, the horizontal push rod 202 starts to push the plane push block 201 to be attached to the lower die 21, and the lower die 21 is in a parallel state to move to the inner side of the feeding table 3, and the lower die 21 is fed into the lower die 21 by the hopper 4.

The material inside the hopper 4 can be filled with the material inside the lower die 21 in the feeding groove 301 through reciprocating movement, after filling is completed, the lower die 21 moves to the position below the injection molding table 501, injection molding of PET bottle blanks is completed through the upper die 503, then in the process of moving the PET bottle blanks, the cooling mechanism 6 cools the bottle blanks, when the bottle blanks move to the position of the blow molding transfer mechanism 7, if blow molding is needed, the bottle blanks can be transferred to a blow molding area, blow molding is needed, if blow molding is not needed, the bottle blanks can move to the position of the stripping collecting hopper 8, demoulding and blanking are completed, and the bottle blanks can be continuously processed by continuously feeding on the inner side of the hopper 4 through reciprocating circulation.

The circuits and control involved in the present invention are all of the prior art, and are not described in detail herein.

The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.

Claims

1. The utility model provides a PET bottle base processing subassembly, its characterized in that, including processing round platform (2), processing round platform (2) tip inboard is cross rotation and is connected with bed die (21), processing round platform (2) tip one side is equipped with material loading platform (3), upper portion laminating sliding connection in material loading platform (3) side is gone up to processing round platform (2) tip, material loading platform (3) top drive is connected with reciprocating sliding's hopper (4), hopper (4) bottom inboard discharge gate position rotation is connected with branch material roller (404), branch material roller (404) are connected with the top surface transmission of material loading platform (3), the position that processing round platform (2) are connected with material loading platform (3) is cross and is equipped with hydraulic injection seat (5), blowing transfer mechanism (7), takes off material platform (25) in proper order, hydraulic injection seat (5) and blowing transfer mechanism (7) output power end are located processing round platform (2), one section outer wall middle part and the take off material platform (25) meshing of bed die (21) connection processing round platform (2), take off material platform (25) and be equipped with take off material (8) and be equipped with between taking off material (8) and take off material (7) and take off material (8) and be equipped with between the blow molding mechanism (7), the output end of the cooling mechanism (6) is positioned right above the processing round table (2);

The novel plastic injection molding machine is characterized in that a lower die (21) which is circumferentially distributed is rotationally connected inside the machining round table (2), an injection molding die cavity (22) which is equidistantly distributed is formed in the top surface of the lower die (21), a rotating shaft (23) is fixed at the center of one surface of the lower die (21) which is connected with the machining round table (2), a stripping gear (24) is fixed on the outer wall of the middle of the rotating shaft (23), the far end of the rotating shaft (23) is in limiting rotational connection with the inside of the machining round table (2), a stripping table (25) is arranged below one side, which is opposite to the hydraulic injection molding seat (5), of the bottom of the machining round table (2), the stripping table (25) takes the machining round table (2) as the center, the stripping table (25) is of a semi-arc structure, a stripping toothed plate (26) which is equidistantly distributed is fixed on the top surface of the stripping table, the stripping gear (24) is in meshed transmission with the stripping toothed plate (26), a rotary driving seat (27) is arranged at the center of the bottom surface of the machining round table (2), and the output end of the rotary driving seat (27) is in rotary driving connection with the bottom surface of the machining round table (2).

The processing round platform (2) is connected with the position both sides of bed die (21) and is equipped with plane ejector pad (201) of symmetry, the one side that plane ejector pad (201) deviates from bed die (21) is fixed with horizontal push rod (202), the one side inside of plane ejector pad (201) is connected at processing round platform (2) is fixed to horizontal push rod (202) other end, both sides are fixed with symmetrical cladding piece (203) about the one end of processing round platform (2) is connected to plane ejector pad (201).

2. The PET bottle preform processing assembly of claim 1, wherein the feeding table (3) is connected with the processing round table (2), the processing round table (2) is provided with a feeding groove (301) in a position, the processing round table (2) is attached and slides on the inner surface of the feeding groove (301), two sides of the top end of the feeding table (3) are provided with a horizontal sliding table (302), the middle part of the horizontal sliding table (302) is provided with a limit sliding groove (303) with the same length as the lower die (21), the outer walls of the two sides of the horizontal sliding table (302) are fixedly provided with symmetrical fixed toothed plates (304), the top surface of the horizontal sliding table (302) is fixedly provided with a blanking transmission toothed plate (305) with the same length as the lower die (21), one surface of the hopper (4) is connected with the top surface of the horizontal sliding table (302) in an embedded sliding manner on the inner side of the limit sliding groove (303), two sides of the hopper (4) are coated and slide on the outer side of the top of the feeding table (3), two ends of the hopper (4) are fixedly provided with a first motor (408), the first output gear (408) is connected with a driving triangular plate (407), the driving end (407) is fixedly meshed with the feeding toothed plate (407), the novel material conveying device is characterized in that a material blocking block (402) is fixed on the opposite surface of the triangular feeding plate (401), a material outlet (403) is formed between the material blocking block (402) and the triangular feeding plate (401), a material distributing roller (404) is connected to the inner side of the material outlet (403) in a rotating mode, two ends of the material distributing roller (404) are connected to two inner sides of a hopper (4) in a rotating mode, symmetrical driven gears (406) are fixed to two ends of the material distributing roller (404) located inside the hopper (4), the driven gears (406) are meshed with a blanking transmission toothed plate (305) for transmission, symmetrical material sweeping sheets (405) are fixed to the bottom surface of the hopper (4) on two sides of the material outlet (403), and the bottoms of the material sweeping sheets (405) are attached to the upper surface of a processing round table (2) for sliding.

3. The PET bottle preform processing assembly according to claim 2, wherein the top output end of the hydraulic injection molding seat (5) is connected with an injection molding table (501), the far end of the injection molding table (501) is located above the processing round table (2), a mold mounting groove (502) is formed in the inner side of the far end of the injection molding table (501), an upper mold (503) embedded in the mold mounting groove (502) is arranged on the inner side of the mold mounting groove, two sides of the top surface of the upper mold (503) are connected with a conductive cable (504), the other end of the conductive cable (504) is electrically connected with the injection molding table (501), bottle preform injection molding rods (505) distributed at equal intervals are arranged on the bottom surface of the upper mold (503), heating pipes (506) are arranged in the bottle preform injection molding rods (505), the heating pipes (506) are electrically connected with the upper mold (503), electromagnetic heating rings (507) are arranged at positions, connected with the injection molding cavities (22), and the electromagnetic heating rings (507) are sleeved on the outer sides of the injection molding cavities (22).

4. A PET bottle preform processing assembly according to claim 3, wherein the cooling mechanism (6) comprises a cooling air pump (601), a split-flow frame (602) is connected to the top of the cooling air pump (601), the far end of the split-flow frame (602) is located above the processing round table (2), air nozzles (603) which are arranged at equal intervals are connected to the bottom surface of one end of the split-flow frame (602) located above the processing round table (2), and air inlet ports of the air nozzles (603) are communicated with the cooling air pump (601).

5. The PET bottle parison processing assembly of claim 4, wherein the blow molding transfer mechanism (7) comprises a hydraulic lifting seat (701), a blow molding transfer table (702) is connected to the top output end of the hydraulic lifting seat (701), both ends of the blow molding transfer table (702) are located above the processing round table (2) after rotating, air cavities (703) are formed in the two sides of the blow molding transfer table (702), rubber air nozzles (704) corresponding to the injection molding mold cavities (22) are connected under the air cavities (703), the rubber air nozzles (704) are communicated with the inside of the air cavities (703), an air feeding pump (705) and a vacuum pump (706) are respectively fixed to the two sides of the top surface of the blow molding transfer table (702), and the air feeding pump (705) and the vacuum pump (706) output ends are communicated with the air cavities (703) in the two sides of the blow molding transfer table (702).

6. The PET bottle preform processing assembly of claim 5, wherein a position where the top of the hydraulic lifting seat (701) is connected with the blow molding transfer table (702) is provided with a limit installation seat (71), the blow molding transfer table (702) is sleeved outside the limit installation seat (71), a fixing screw (72) screwed by threads is arranged inside the limit installation seat (71), the bottom surface of the fixing screw (72) is abutted to the top surface of the blow molding transfer table (702), a bearing (73) is arranged at the position where the top output end of the hydraulic lifting seat (701) is connected with the blow molding transfer table (702), the bearing (73) is abutted to the bottom surface of the blow molding transfer table (702), an annular toothed plate (74) is connected to the outer side of the top surface of the output end of the hydraulic lifting seat (701), symmetrical second motors (75) are fixed on two sides of the bottom surface of the hydraulic lifting seat (701), and the second motors (75) are in meshed transmission with the annular toothed plate (74).

7. The method of claim 6, wherein the method of processing the PET preform processing assembly comprises the steps of:

The output end of the rotary driving seat (27) drives the processing round table (2) to rotate, in the rotating process, the lower dies (21) distributed in a cross manner are respectively moved to the inside of the upper die (503) at the bottom of the injection molding table (501), the right lower part of the rubber air tap (704) at one side of the blow molding transfer table (702) and the upper part of the stripping collecting hopper (8), the lower dies (21) positioned in the inside of the upper die (3) are driven by the first motor (408), the hopper (4) is driven to move, meanwhile, in the moving process of the hopper (4), the material distributing rollers (404) can simultaneously rotate, materials in the hopper (4) are uniformly fed into the inner side of the lower dies (21), and in the discharging process, the material blocking plate can block the redundant materials under the hopper (4);

After the feeding of the hopper (4) is completed, the lower die (21) is driven to rotate by the processing round table (2), the lower die is moved to the lower part of the upper die (503) in the hydraulic injection molding table (501), the material in the lower die (21) is heated, softened and fused by the electromagnetic heating ring (507), the upper die (503) is driven to move downwards by the hydraulic injection molding seat (5), the softened and fused material is extruded and injected to form bottle blanks, the upper die (503) is separated from the lower die (21), the lower die (21) is driven to rotate by the processing round table (2), the cooling gas sprayed by the air nozzle (603) in the moving process of the lower die (21) cools the bottle blanks in the moving middle of the lower die (21), the lower die (21) is moved to the lower part of the blowing transfer table (702), the hydraulic lifting seat (701) is started to drive the blowing transfer table (702) to move downwards, the rubber air nozzle (704) is attached to the injection molding completion bottle blanks, the vacuum pump (706) is started to absorb the softened and fused material in the bottle blanks, the bottle blanks are absorbed and clamped, the bottle blanks are all the bottle blanks are driven to rotate, the lifting seat (701) is lifted to drive all the lower die (21) to be transferred with the blowing die (75) to rotate along with the blowing table (75), the blowing die (2) is driven to rotate, the blowing die is driven to rotate the blowing die (2) to rotate the blowing die (21) and blow molding die to blow the blowing die, and blow molding die is rotated to blow the blowing die, and the blowing die (75) and the blowing die to rotate the blowing die, and the blowing machine to rotate and the blowing air to rotate and the blowing. After moving to the position of the feeding table (3), continuously feeding, and carrying out production and processing of bottle blanks;

If the bottle blank does not need direct processing blowing, after being cooled by an air nozzle (603), the lower die (21) is driven by a processing round table (2) to move to the position of a stripping table (25), at the moment, a stripping gear (24) is meshed with a stripping toothed plate (26), the lower die (21) rotates and overturns under the driving of the stripping gear (24), meanwhile, a horizontal push rod (202) starts to shrink, a plane push block (201) contracts towards two sides, a rotating space is provided for the rotation of the lower die (21), the lower die (21) rotates to the middle part above the stripping collecting bucket (8), the lower die (21) is in a complete overturning state, the bottle blank in an injection molding die cavity (22) falls to the inner side of the stripping collecting bucket (8) under the action of gravity, then the processing round table (2) rotates, the stripping gear (24) and the stripping toothed plate (26) can drive the lower die (21) to rotate and overturned to the front, after the overturning of the lower die (21) is completed, the horizontal push rod (202) starts to push the plane push block (201) to be attached to the lower die (21), and the lower die (21) moves to the inner side of the stripping collecting bucket (8), and the bottle blank is in the state (4) and the inner side of the injection die (21) is in a parallel state.