CN112810110A

CN112810110A - One-step injection, drawing and blowing molding integrated machine and processing method thereof

Info

Publication number: CN112810110A
Application number: CN202110144696.5A
Authority: CN
Inventors: 刘建发
Original assignee: Dongguan Leshan Machinery Equipment Co ltd
Current assignee: Dongguan Leshan Machinery Equipment Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-05-18

Abstract

The invention belongs to the technical field of plastic product forming devices, and particularly relates to a one-step injection, drawing and blowing forming integrated machine and a processing method thereof, wherein the integrated machine comprises a rack, an injection molding device, a bottle blank forming die, a heating and bottle blowing forming device, a first manipulator device and a second manipulator device; the injection molding device, the bottle blank forming mold, the first manipulator device and the heating bottle blowing forming device are sequentially arranged on the rack, and the second manipulator device is arranged beside the heating bottle blowing forming device; the injection molding device injects plasticized plastic into the bottle blank forming mold, the bottle blank is cooled and formed in a bottle blank forming cavity of the bottle blank forming mold, then the first mechanical hand device takes out the cooled and formed bottle blank, then the second mechanical hand device moves and loads the bottle blank clamped on the first mechanical hand device on the heating bottle blowing forming device, and finally the heating bottle blowing forming device performs heating and bottle blowing processes on the bottle blank to obtain a formed bottle body.

Description

One-step injection, drawing and blowing molding integrated machine and processing method thereof

Technical Field

The invention belongs to the technical field of plastic product forming devices, and particularly relates to a one-step injection, drawing and blowing forming integrated machine and a processing method thereof.

Background

With the continuous development of plastic part requirements, plastic processing methods are also continuously updated. Injection molding is one of the main plastic molding processes; the injection molding is a plastic molding processing method which comprises the steps of plasticizing thermoplastic plastics (such as PC, PE, PS, PP, PVC, PA, ABS and the like) in a charging barrel through external heating and screw rotation shearing heat action, injecting the plasticized thermoplastic plastics into a mold with a cooling device at a certain injection pressure, and rapidly cooling to obtain various plastic products. However, the simple injection molding is difficult to meet the requirements of some containers, such as beverage bottles, water bottles, infusion bottles or medicine bottles, etc., and the technologies of "injection stretch blow" and "multilayer coextrusion" are becoming the focus of attention as the mainstream processing technologies of plastic hollow containers. The injection stretch blow molding process includes injecting molten plastic into an injection mold, cooling to form transparent bottle blank, heating the bottle blank in a blow mold to blow molding temperature, filling compressed air into the cavity of the bottle blank to stretch the bottle blank in certain proportion, and cooling to obtain the required hollow product.

At present, most of the adopted injection stretch blow is a one-step process; the process of completing the processes of injection, drawing and blowing in one machine is called a 'one-step method'. The one-step method has the advantages of high processing efficiency, no manual labor and processing cost saving.

Although the existing injection stretch blow molding method is very suitable for manufacturing bottle-type plastic containers, the existing injection stretch blow molding process has high requirements on equipment, and many enterprises in China try to produce one-step injection stretch blow molding equipment in nearly ten years, wherein the injection stretch blow molding equipment is mainly of a three-station fixed mode of Japanese mahogany and a four-station precise mode of the Japanese. So far, most of the forming equipment of the so-called one-step method and injection stretch blow molding in China is imported from developed countries in Japan and America.

The existing multi-station one-step injection stretch blow molding equipment adopts a turntable form to carry out station connection, but has the following defects: the turntable runs at a high speed and is not high in positioning stability, the injection-stretch-blow molding equipment with the one-step method is high-speed molding equipment, the turntable rotates at a high speed when starting, when the turntable moves to be close to the next processing station, the turntable needs to decelerate to rotate at a low speed, when the turntable reaches the next processing station, the turntable needs to decelerate suddenly and stop, the phenomenon of front-back swing can occur when the turntable moves to the next processing station every time, the turntable can be stopped stably and accurately, the consumed time is long, the stability is not high, and the production efficiency and the product quality are influenced. In addition, injection moulding device, bottle base heating device, blow molding device etc. all set up on the carousel, and the carousel needs to bear the weight of above-mentioned device, and the carousel is when rotatory, and the load is big, and the performance requirement to the carousel is high, and during long-time high-speed operation, the carousel is worn and torn easily, and simultaneously, inertia is big, and the carousel opens and stops the required time long, and production efficiency is not high.

Disclosure of Invention

The invention aims to provide a one-step injection, drawing and blowing molding integrated machine and a processing method thereof, and aims to solve the technical problems that in the prior art, a multi-station one-step injection, drawing and blowing molding device adopts a turntable form to carry out station connection, so that the turntable swings back and forth when moving to a processing station every time, the turntable can be stopped stably and accurately, the consumed time is long, the stability is not high, and the production efficiency and the product quality are influenced.

In order to achieve the above purpose, the embodiment of the invention provides a one-step injection, drawing, blowing and molding integrated machine, which comprises a rack, an injection molding device, a bottle blank molding die, a heating and bottle blowing molding device, a first manipulator device and a second manipulator device; the injection molding device, the bottle blank forming mold, the first manipulator device and the heating bottle blowing forming device are sequentially arranged on the rack, and the second manipulator device is arranged beside the heating bottle blowing forming device; the injection molding device injects plasticized plastic into the bottle blank forming mold, the bottle blank is cooled and formed in a bottle blank forming cavity of the bottle blank forming mold, then the first mechanical hand device takes out the cooled and formed bottle blank, then the second mechanical hand device moves and loads the bottle blank clamped on the first mechanical hand device on the heating bottle blowing forming device, and finally the heating bottle blowing forming device performs heating and bottle blowing processes on the bottle blank to obtain a formed bottle body.

Optionally, the bottle blank forming mold comprises a first open-close mold bracket, a front mold and a rear mold; the first mold opening and closing support is arranged on the rack, the front mold and the rear mold are both arranged on the first mold opening and closing support, and the front mold and the rear mold are distributed in a left-right mode; a plurality of bottle blank forming cavities are arranged between the front die and the rear die;

the first manipulator device comprises a first X-direction transfer mechanism, a rotating mechanism, a first mounting plate and a plurality of bottle blank taking heads; the first X-direction transfer mechanism is mounted on the rack, the rotating mechanism is mounted on the first X-direction transfer mechanism, the first mounting plate is mounted on the rotating mechanism, and the bottle blank taking heads are mounted on the first mounting plate; the bottle preform taking heads and the bottle preform forming cavities are arranged in a one-to-one correspondence mode, and each bottle preform taking head is provided with a material taking groove matched with a bottle preform; the first X-direction transfer mechanism and the rotating mechanism drive the bottle blank taking head to transfer the bottle blank formed in the bottle blank forming cavity in a cooling mode.

Optionally, each bottle preform taking head is sleeved with a heating sleeve.

Optionally, the heating bottle blowing forming device comprises a heating pre-blowing bottle forming device and a bottle blowing forming device which are sequentially arranged on the rack;

the second manipulator device comprises a second X-direction transfer mechanism arranged on the rack, and a first clamping manipulator and a second clamping manipulator which are arranged on the second X-direction transfer mechanism;

the first clamping manipulator comprises a first Y-direction shifting component arranged on the second X-direction shifting mechanism, a first Z-direction shifting component arranged on the first Y-direction shifting component, and a first clamping component arranged on the first Z-direction shifting component; the second X-direction transfer mechanism, the first Y-direction transfer component and the first Z-direction transfer component drive the first clamping component to clamp the bottle blank on the first manipulator device and transfer the bottle blank to the heating pre-blowing bottle forming device, and the heating pre-blowing bottle forming device performs heating and first bottle blowing processes on the bottle blank to enable the bottle blank to reach the bottle blowing forming temperature and shape so as to obtain a preformed bottle blank;

the second clamping manipulator comprises a second Y-direction transferring component arranged on the second X-direction transferring mechanism and a second clamping component arranged on the second Y-direction transferring component; the second X-direction transfer mechanism and the second Y-direction transfer assembly drive the second clamping assembly to clamp the preformed bottle blank to be transferred and loaded on the bottle blowing forming device, and the bottle blowing forming device performs a second bottle blowing process on the preformed bottle blank to obtain a formed bottle body.

Optionally, the heating pre-blown bottle forming device comprises a second mold opening and closing support, a heating pre-blown bottle forming mold and a bottle blowing mechanism; the second mold opening and closing support is arranged on the rack, the heating pre-blowing bottle forming mold is arranged on the second mold opening and closing support, and the heating pre-blowing bottle forming mold is opened left and right; the heating pre-blowing bottle forming mold is provided with a plurality of pre-blowing bottle forming cavities, and the pre-blowing bottle forming cavities and the bottle blank taking heads are arranged in a one-to-one correspondence manner; the bottle blowing mechanism is arranged above the heating pre-blowing bottle forming mold;

the bottle blowing mechanism comprises a plurality of pipe pushing cylinders and a plurality of high-pressure air blowing pipes; the plurality of pipe pushing cylinders are arranged at the upper end of the second mold opening and closing support, a driving rod of each pipe pushing cylinder is provided with one high-pressure air blowing pipe, the high-pressure air blowing pipes are vertically arranged, and the lower ends of the high-pressure air blowing pipes are air blowing openings; the plurality of high-pressure air blowing pipes and the plurality of pre-blowing bottle forming cavities are arranged in a one-to-one correspondence mode.

Optionally, two rows of bottle preform taking heads are arranged on the first mounting plate, and two rows of bottle preform forming cavities are correspondingly arranged between the front die and the rear die; the rack is correspondingly provided with two second mechanical hand devices which respectively move and take bottle blanks positioned on the two rows of bottle blank taking heads;

the heating pre-bottle blowing forming mold comprises a first heating film, a heating cavity mold and a second heating film; the first heating film and the second heating film are both arranged on the second opening and closing mold support, the heating cavity mold is arranged on the rack through a support frame, and the heating cavity mold is positioned between the first heating film and the second heating film; a row of pre-blown bottle forming cavities are arranged between the first heating film and the heating cavity die position and between the second heating film and the heating cavity die position; the two rows of pre-blown bottle forming cavities are respectively arranged corresponding to the two second manipulator devices;

and two bottle blowing mechanisms are arranged above the heating pre-blowing bottle forming mold and respectively correspond to the two rows of pre-blowing bottle forming cavities.

The one-step injection, drawing, blowing and forming integrated machine comprises a rack, an injection molding device, a bottle blank forming die, a heating and pre-blowing bottle forming device, a bottle blowing forming device, a first manipulator device and a second manipulator device; the one-step injection stretch blow molding processing method comprises the following steps:

s100: the bottle blank forming mold is closed, the plastic plasticized by the injection molding device is injected into a bottle blank forming cavity of the bottle blank forming mold, and the bottle blank is cooled and formed in the bottle blank forming cavity;

s200: opening the bottle blank forming mold, wherein the first mechanical hand device is close to the bottle blank forming cavity, and taking out the cooled and formed bottle blank from the bottle blank forming mold;

s300: the second manipulator device clamps the bottle blank on the first manipulator device and transfers the bottle blank to the heating pre-bottle blowing forming device;

s400: the heating pre-bottle blowing forming device is used for heating the bottle blank and performing a first bottle blowing process, so that the bottle blank reaches a bottle blowing forming temperature and a bottle blowing forming shape, and a preformed bottle blank is obtained;

s500: the second mechanical hand device clamps the preformed bottle blank and transfers the bottle blank to the bottle blowing forming device;

s600: and the bottle blowing forming device performs a second bottle blowing process on the preformed bottle blank, blows the bottle blank into a set shape through high-pressure gas, and cools to obtain a formed bottle body.

One or more technical schemes in the one-step injection, drawing, blowing and molding integrated machine provided by the embodiment of the invention at least have one of the following technical effects:

1. adopt manipulator device to carry out the station at the station of moulding plastics and heat the bottle blowing station and link up, the station links up the drive mode for sharp form, links up fastly, has improved production efficiency greatly, and mechanical structure is simple simultaneously, and the load is little, and the motion stability is high, and equipment is difficult for wearing and tearing, and the effectual current carousel form of having solved carries out the station and links up the problem that there is production efficiency low and poor stability.

2. The injection molding device, the bottle blank forming mold, the first manipulator device and the heating bottle blowing forming device are arranged on the rack in a linear mode, and workers replace, detect and maintain the molds, so that the safety of the equipment is improved, and the service life of the equipment is prolonged.

3. The bottle blank is cooled and formed in a bottle blank forming cavity of the bottle blank forming die, residual heat can remain in the cooled and formed bottle blank, the bottle blank taking head has a heat preservation effect, the bottle blank is subjected to heat preservation transfer by adopting a moving mode that the bottle blank taking head sleeves the cooled and formed bottle blank, the residual heat of the cooled and formed bottle blank is prevented from being dissipated quickly, and the energy-saving performance is good.

4. The bottle blank forming die is used for forming two rows or multiple rows of bottle blanks at one time, the two rows or multiple rows of bottle blanks are moved to be loaded in the heating bottle blowing forming device through the first mechanical hand device and the second mechanical hand device, then the heating bottle blowing forming device is used for carrying out a heating process and a bottle blowing process on the two rows or multiple rows of bottle blanks, the two rows or multiple rows of bottle blanks are formed simultaneously, formed bottles are obtained, the production efficiency is improved in a multiplied mode, and the productivity is high.

One or more technical schemes in the one-step injection stretch blow molding processing method provided by the embodiment of the invention have at least one of the following technical effects:

1. the manipulator device is adopted to carry out station connection at the injection molding station and the heating bottle blowing station, the connection speed is high, and the production efficiency is greatly improved.

2. Firstly, heating and first bottle blowing processes are carried out on a bottle blank through a heating pre-bottle blowing forming device, so that the bottle blank reaches a bottle blowing forming temperature and a bottle blowing forming shape, and a preformed bottle blank is obtained; and then carrying out a second bottle blowing process on the preformed bottle blank through the bottle blowing forming device, blowing the bottle blank into a set shape through high-pressure gas, cooling to obtain a formed bottle body, adopting the two bottle blowing processes, and enabling the bottle blank to be subjected to blow molding to have a transition process, so that the bottle blank forming process is smoothly and uniformly carried out, and the rejection rate of the formed bottle body is low and the quality is good.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of the one-step injection stretch blow molding all-in-one machine of the present invention.

Fig. 2 is a schematic structural diagram of a first robot apparatus according to the present invention.

Fig. 3 is a partial structural schematic diagram of a first robot apparatus according to the present invention.

Fig. 4 is a first cross-sectional view showing a partial structure of a first robot according to the present invention.

Fig. 5 is a second sectional view of the first robot according to the present invention.

Fig. 6 is a schematic structural view of a second robot apparatus according to the present invention.

Fig. 7 is a partial structural schematic view of a second robot apparatus according to the present invention.

FIG. 8 is an exploded view of the first clamping assembly of the present invention.

Fig. 9 is a schematic structural diagram of a heating pre-bottle blowing molding device of the present invention.

Fig. 10 is a schematic structural diagram of a bottle blowing mechanism according to the present invention.

Fig. 11 is a sectional view of the bottle blowing mechanism of the present invention.

FIG. 12 is a flow chart of a one-step injection stretch blow molding process of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the embodiments of the present invention, and should not be construed as limiting the invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In an embodiment of the present invention, referring to fig. 1, a one-step injection, stretch blow molding integrated machine is provided, which includes a rack 100, an injection molding device 200, a preform molding mold 300, a heated bottle blowing molding device 500, a first manipulator device 400, and a second manipulator device 600.

Referring to fig. 1, the frame 100 is sequentially provided with the injection molding device 200, the bottle blank molding mold 300, the first manipulator device 400 and the heated bottle blowing molding device, and the second manipulator device 600 is disposed beside the heated bottle blowing molding device 500, so that the injection molding device 200, the bottle blank molding mold 300, the first manipulator device 400 and the heated bottle blowing molding device 500 are arranged in a linear manner, and the heated bottle blowing molding device 500 is arranged on the frame 100.

The injection molding device 200 is a direct-pressure screw injection device, and the direct-pressure screw injection device is mature in the prior art, and is good in stability and high in injection precision.

Referring to fig. 1, the injection molding device 200 injects the plasticized plastic into the bottle preform molding mold 300, the plastic fills the bottle preform molding cavity of the bottle preform molding mold 300, and the bottle preform is cooled and molded in the bottle preform molding cavity of the bottle preform molding mold 300 to obtain a bottle preform. The first robot 400 then takes out the cooled and molded preforms, and the preforms wait for transfer. Then, the second manipulator device 600 moves and loads the bottle blank clamped on the first manipulator device 400 to the heating bottle blowing forming device 500, and finally, the heating bottle blowing forming device 500 performs heating and bottle blowing processes on the bottle blank to obtain a formed bottle.

2. The injection molding device 200, the bottle blank forming mold 300, the first manipulator device 400 and the heating bottle blowing forming device 500, wherein the heating bottle blowing forming device 500 is linearly arranged on the rack 100, and workers replace, detect and maintain the molds, so that the safety of equipment is improved, and the service life of the equipment is prolonged.

In another embodiment of the present invention, referring to fig. 1, the preform molding die 300 includes a first split die holder 310, a front die 320, and a rear die 330. The first mold opening and closing support 310 is installed on the machine frame 100, the front mold 320 and the rear mold 330 are installed on the first mold opening and closing support 310, and the front mold 320 and the rear mold 330 are distributed in a left-right direction. A plurality of preform-forming cavities (not shown) are provided between the front mold 320 and the rear mold 330, each of which forms a preform.

The first mold opening and closing support 310 is a mold opening and closing structure commonly used in injection molding equipment, and is mainly used for driving the front mold 320 and the rear mold 330 to open and close, and is a mature prior art.

The front mold 320 and the rear mold 330 of the bottle blank forming mold 300 are mainly used for forming a bottle blank, the front mold 320 and the rear mold 330 may be molds for processing and forming a beverage bottle, a transfusion bottle or a medicine bottle, and the injection mold for injection molding of the beverage bottle, the transfusion bottle or the medicine bottle is a mature prior art.

Referring to fig. 2 and 3, the first robot 400 includes a first X-direction transfer mechanism 410, a rotation mechanism 420, a first mounting plate 430, and a plurality of preform pickup heads 440. The first X-direction transfer mechanism 410 is mounted on the rack 100, the rotating mechanism 420 is mounted on the first X-direction transfer mechanism 410, the first mounting plate 430 is mounted on the rotating mechanism 420, and the bottle preform taking heads 440 are mounted on the first mounting plate 430. The bottle preform taking heads 440 are arranged in one-to-one correspondence with the bottle preform forming cavities, and each bottle preform taking head 440 is provided with a material taking groove 441 matched with a bottle preform. When the bottle preform is moved, the first X-direction moving mechanism 410 and the rotating mechanism 420 drive the bottle preform taking head 440 to be close to the bottle preform forming cavity, and the bottle preform formed in the bottle preform forming cavity in a cooling mode is moved, so that the bottle preform is taken out from the bottle preform forming cavity and moved to a waiting station.

The concrete description is as follows: when a bottle blank is taken, the rotating mechanism 420 drives the bottle blank taking head 440 to rotate forward by 90 degrees, so that the bottle blank taking head 440 is parallel to a bottle blank forming cavity, then the first X-direction transfer mechanism 410 drives the bottle blank taking head 440 to be close to the bottle blank forming cavity, each taking groove 441 is opposite to one bottle blank forming cavity, and when the bottle blank forming mold 300 ejects the bottle blank in the bottle blank forming cavity through an ejector pin, the bottle blank is pushed into the taking grooves 441. Then, the first X-direction transfer mechanism 410 drives the bottle blank taking head 440 to move out of the bottle blank forming mold 300, and the second motor 421 drives the bottle blank taking head 440 to rotate in the reverse direction by 90 °, so that the bottle blowing ports of the bottle blanks in the bottle blank taking head 440 are distributed upward for subsequent heating and bottle blowing processes. Because the high-pressure gas is blown into the inner cavity of the bottle blank from the bottle blowing opening end of the bottle blank from top to bottom, the bottle blank can be more easily subjected to blow molding.

Referring to fig. 2 and 3, the first X-direction transfer mechanism 410 includes a first motor 411, two synchronizing wheels 412, a synchronizing belt 413, a first X-direction moving block 414, and a first X-direction guide 415; the two synchronizing wheels 412 are rotatably connected to the rack 100 through a connecting seat, the synchronous belt 413 is sleeved on the two synchronizing wheels 412, the first motor 411 is fixedly installed on the rack 100, and a rotating shaft of the first motor 411 is connected with a shaft of one of the synchronizing wheels 412. The first X-direction guide 415 is fixedly installed on the frame 100, the first X-direction moving block 414 is installed on a slider of the first X-direction guide 415, and the first X-direction moving block 414 is connected to the timing belt 413 by a timing belt 413 connector. The first motor 411 drives the timing belt 413 to reciprocate, thereby driving the first X-direction moving block 414 to reciprocate along the first X-direction guide 415.

Referring to fig. 2 and 3, the rotating mechanism 420 includes a second motor 421 and a rotating connection plate 422. The second motor 421 is mounted on the first X-direction moving block 414, and the rotating connecting plate 422 is mounted on a rotating shaft of the second motor 421. The first mounting plate 430 is fixedly mounted on the rotating connection plate 422, and the second motor 421 drives the bottle blank taking head 440 on the first mounting plate 430 to rotate 90 degrees in the forward direction or 90 degrees in the reverse direction.

By the rotary taking mode, the bottle blank can be taken out quickly, the bottle blowing opening end of the bottle blank faces upwards, and the efficiency is high.

The bottle blank is cooled and formed in the bottle blank forming cavity of the bottle blank forming die 300, residual heat can remain in the cooled and formed bottle blank, the bottle blank taking head 440 is sleeved with the taking groove 441 of the bottle blank taking head 440 in the moving mode of the cooled and formed bottle blank, the bottle blank taking head 440 has a heat preservation effect, the bottle blank is subjected to heat preservation transfer, the phenomenon that the residual heat of the cooled and formed bottle blank is dissipated quickly is avoided, and the energy-saving performance is good. And move the bottle base in heating bottle blowing forming device 500, heat on the basis of the waste heat that heating bottle blowing forming device 500 remained the bottle base, it is short to heat the bottle base to the time of bottle blowing shaping temperature, promotes heating efficiency, simultaneously, can reduce and heat required energy, reduce the energy consumption.

Further, referring to fig. 2 and 3, a heating jacket 442 is provided around each preform take-out head 440. The heating jacket 442 is used for heating the bottle blank taking head 440, so that the temperature of the bottle blank taking head 440 is close to that of a bottle blank formed by cooling, and the heat preservation effect of the bottle blank taking head 440 is good. The heating sleeve 442 provides heat to keep the temperature of the bottle blank taking head 440, so that the bottle blank can keep the temperature of waste heat, and similarly to an electric rice cooker, the energy consumption required by the heat preservation state when the bottle blank is kept at the set temperature is less than the energy consumption required by the heating state when the bottle blank is heated to the set temperature, therefore, the energy consumption required by the residual heat of the heat preservation bottle blank in the process of transferring the bottle blank is less than the energy consumption required by the temperature when the bottle blank is reheated to the bottle blank film discharging by the heating bottle blowing forming device 500 after being cooled, and the energy-saving effect is good.

Specifically, the heating jacket 442 may be configured as a heating wire, such as an electric heating, a resistance type heating, a hot air flow heating, or a hot liquid flow heating.

In another embodiment of the present invention, referring to fig. 3, 4 and 5, the first robot apparatus 400 further comprises a material ejecting mechanism 450.

Referring to fig. 3, 4 and 5, the ejector mechanism 450 includes an ejector cylinder 451, an ejector mounting plate 452, and a plurality of ejector rods 453. The material ejecting cylinder 451 is installed on the first installation plate 430, the material ejecting installation plate 452 is connected with the driving rod of the material ejecting cylinder 451, and the plurality of material ejecting rods 453 are installed on the material ejecting installation plate 452. Each bottle blank taking head 440 is provided with an ejection hole 443 coaxial and communicated with the taking groove 441 at one end close to the first mounting plate 430, the plurality of ejection rods 453 are arranged in one-to-one correspondence with the plurality of ejection holes 443, the ejection rods 453 movably penetrate through the ejection mounting plate 452 and penetrate through the ejection holes 443, and the ejection rods 453 are used for pushing the bottle blowing port end of a bottle blank out of the taking groove 441.

Specifically, referring to fig. 3, 4 and 5, the driving rod of the ejecting cylinder 451 extends to drive the ejecting mounting plate 452 and the ejecting rod 453 to move down, so that the ejecting rod 453 is far away from the material taking groove 441. The driving rod of the ejecting cylinder 451 contracts to drive the ejecting mounting plate 452 and the ejecting rod 453 to move upwards, so that the ejecting rod 453 extends into the material taking groove 441 to eject the bottle blank positioned in the material taking groove 441 upwards, and the bottle blowing end of the bottle blank extends out of the material taking groove 441, thereby facilitating the stable and accurate clamping of the bottle blank by the second manipulator device 600.

In another embodiment of the present invention, referring to fig. 3, 4 and 5, the first robot apparatus 400 further includes a negative pressure member 460 mounted on the first mounting plate 430. An air groove 461 is dug at the side end of the negative pressure piece 460 close to the first mounting plate 430, and an air hole 462 communicated with the air groove 461 is arranged at the end part of the negative pressure piece 460. The first mounting plate 430 is provided with a plurality of air channels 431, one end of each of the air channels 431 is communicated with the air groove 461, and the other end of each of the air channels 431 is communicated with the plurality of material taking grooves 441.

Referring to fig. 3, 4 and 5, when the material taking groove 441 moves to take the bottle blank, the air hole 462 is communicated with negative pressure air, the bottle blank positioned in the material taking groove 441 can be firmly sucked in the material taking groove 441, the bottle blank taking is stable, and the bottle blank is prevented from falling off in the process of rotating and moving the bottle blank taking head 440. When the second manipulator device 600 clamps the bottle blank, the air hole 462 is communicated with atmospheric pressure or high-pressure air, and the bottle blank in the material taking groove 441 loses the adsorption force at this time, so that the bottle blank can be easily taken out from the material taking groove 441.

Wherein, the air hole 462 is connected with an air pump through an air pipe, and the air pump can provide negative pressure gas.

In another embodiment of the present invention, referring to fig. 6, fig. 7 and fig. 8, the heated bottle blowing and forming apparatus 500 includes a heated pre-blown bottle forming apparatus 501 and a bottle blowing and forming apparatus 502, which are sequentially mounted on the rack 100.

Referring to fig. 6, 7 and 8, the second robot apparatus 600 includes a second X-direction transfer mechanism 610 mounted on the frame 100, and a first gripping robot 620 and a second gripping robot 630 mounted on the second X-direction transfer mechanism 610.

The second X-direction transfer mechanism 610 and the first X-direction transfer mechanism 410 have substantially the same structure and working principle, and are mainly used for driving the first clamping robot 620 and the second clamping robot 630 to move in the X direction.

Referring to fig. 6, 7 and 8, the first gripping robot 620 includes a first Y-direction transfer unit 621 provided on the second X-direction transfer mechanism 610, a first Z-direction transfer unit 622 provided on the first Y-direction transfer unit 621, and a first gripping unit 623 provided on the first Z-direction transfer unit 622.

Referring to fig. 6, 7 and 8, the second X-direction transfer mechanism 610, the first Y-direction transfer assembly 621 and the first Z-direction transfer assembly 622 drive the first clamping assembly 623 to move along the X direction, the Y direction and the Z direction, so that the first clamping assembly 623 clamps the bottle blank on the first manipulator 400 and transfers the bottle blank to the pre-blowing bottle heating and forming device 501, and the pre-blowing bottle heating and forming device 501 performs the bottle blank heating and first bottle blowing processes to reach the bottle blowing and forming temperature and the bottle blowing and forming shape, so as to obtain the pre-formed bottle blank.

Referring to fig. 6, 7, and 8, the first Y-direction transfer unit 621 includes a first Y-direction transfer fixing plate 6211, a first Y-direction cylinder 6212, a first Y-direction linear guide 6213, and a first Y-direction moving rack 6214. The first Y-direction transfer fixing plate 6211 is attached to the second X-direction transfer mechanism 610, and the first Y-direction transfer fixing plate 6211 can be driven by the second X-direction transfer mechanism 610 to move in the Y direction. The first Y-direction cylinder 6212 and the first Y-direction linear guide 6213 are attached to the first Y-direction transfer fixing plate 6211, and the first Y-direction moving frame 6214 is fixedly connected to the driving rod of the first Y-direction cylinder 6212 and the slider on the first Y-direction linear guide 6213. The first Z-direction transfer unit 622 is mounted on the first Y-direction moving frame 6214, and the first Z-direction transfer unit 622 is driven by the first Y-direction cylinder 6212 to move in the Z direction.

Referring to fig. 6, 7 and 8, the first Z-direction transfer assembly 622 includes a first Z-direction cylinder 6221, a first Z-direction linear guide 6222 and a first Z-direction moving rack 6223. The first Z-direction cylinder 6221 and the first Z-direction linear guide 6222 are both mounted on the first Y-direction moving frame 6214, and the first Z-direction moving frame 6223 is fixedly connected to the driving rod of the first Z-direction cylinder 6221 and the slider on the first Z-direction linear guide 6222. The first clamping assembly 623 is mounted on the first Z-direction moving frame 6223, and the first clamping assembly 623 is driven to move along the Z direction by the first Z-direction cylinder 6221.

Referring to fig. 6, 7 and 8, the second gripping robot 630 includes a second Y-direction transfer unit 631 provided in the second X-direction transfer mechanism 610, and a second gripping unit 632 provided in the second Y-direction transfer unit 631. The second X-direction transfer mechanism 610 and the second Y-direction transfer component 631 drive the second clamping component 632 to clamp the preform bottle blank along the X direction and the Y direction, so that the second clamping component 632 clamps the preform bottle blank and transfers the preform bottle blank to the bottle blowing device 502. The bottle blowing forming device 502 performs a second bottle blowing process on the preform, and a formed bottle is obtained after cooling.

The second Y-direction transfer component 631 and the first Y-direction transfer component 621 have substantially the same structure and working principle, and are mainly used for driving the second clamping component 632 to move along the Y-direction.

As can be seen from the above, the bottle preform is heated and subjected to the first bottle blowing process by the heating pre-blowing bottle forming device 501, so that the bottle preform reaches the bottle blowing forming temperature and the bottle blowing forming shape, and a pre-formed bottle preform is obtained; and then the bottle blowing process of the second time is carried out on the preformed bottle blank by the bottle blowing forming device 502, the bottle blank is blown into the set shape by high-pressure gas, a formed bottle body is obtained after cooling, the bottle blowing process of two times is adopted, the bottle blank is subjected to the blow molding process to have a transition process, so that the bottle blank forming process is smoothly and uniformly carried out, and the rejection rate of the formed bottle body is low and the quality is good.

Further, referring to fig. 6, 7 and 8, the first clamp assembly 623 includes a first clamp mounting plate 6231, a plurality of pairs of clamps 6232, a coupling plate 6233 and a drive 6234. The first clamping attachment plate 6231 is attached to the first Z-direction moving frame 6223 of the first Z-direction transfer unit 622, and a plurality of pairs of the clamping members 6232 are attached to the first clamping attachment plate 6231 in an aligned manner.

Referring to fig. 6, 7 and 8, the first ends of the first and

second clamping members

6232a, 6232b of each pair of said clamping members 6232 are rotatably connected to said first clamping mounting plate 6231 by a first connecting shaft 6236, and the first ends of said first and

second clamping members

6232a, 6232b are each provided with a gear 6232c in meshed connection with each other, a clamping location 6232e being formed between the second ends of said first and

second clamping members

6232a, 6232 b. Specifically, the clamping positions 6232e are two clamping grooves symmetrically disposed at the second ends of the first clamping member 6232a and the second clamping member 6232b, and the two clamping grooves can be adapted to clamp the bottle blank, so that the clamping stability is good.

Referring to fig. 6, 7 and 8, a connecting portion 6232d extends outwardly from a first end of the second clamping member 6232b, and the connecting portion 6232d is rotatably connected to the connecting plate 6233 by a second connecting shaft 6237. The drive member 6234 is fixedly mounted to the first clamp mounting plate 6231, and the coupling plate 6233 is mounted to the drive member 6234. The driving element 6234 drives the second clamping element 6232b of the plurality of pairs of clamping elements to synchronously swing through the connecting plate 6233, and the second clamping element 6232b drives the first clamping element 6232a to swing through the gear 6232c, so that the first clamping element 6232a and the second clamping element 6232b (i.e. two clamping elements) are close to or far away from each other, and the clamping position clamps or releases the bottle blank, and the bottle blank clamping device is simple in structure and stable in movement.

Referring to fig. 6, 7 and 8, the driving element 6234 is a clamping element driving cylinder, and a driving rod of the clamping element driving cylinder is rotatably connected to the connecting plate 6233 through a connecting rod 6235. The telescopic motion of the clamping piece driving cylinder drives the second clamping pieces 6232b of the clamping pieces to synchronously swing around the first connecting shaft, and the structure is simple.

The second clamping assembly 632 and the first clamping assembly 623 have substantially the same structure and working principle, and are mainly used for clamping or releasing a preform.

In another embodiment of the present invention, referring to fig. 9, 10 and 11, the apparatus 501 for heating and pre-blowing bottle molding comprises a second mold opening and closing support 510, a heating and pre-blowing bottle molding mold 520 and a bottle blowing mechanism 540.

The second mold opening and closing support 510 is installed in the machine frame 100, the heating pre-blow bottle forming mold 520 is installed in the second mold opening and closing support 510, and the heating pre-blow bottle forming mold 520 is opened left and right. The heating pre-blowing bottle forming mold 520 is provided with a plurality of pre-blowing bottle forming cavities (not shown), and the plurality of pre-blowing bottle forming cavities and the plurality of bottle blank taking heads 440 are arranged in a one-to-one correspondence manner. The bottle blowing mechanism 540 is disposed above the heating pre-bottle blowing mold 520.

When bottle pre-blowing is performed (a first bottle blowing process), the heating pre-blowing bottle forming mold 520 is opened, the pre-blowing bottle forming cavity is opened, and the first clamping assembly 623 moves the bottle blank to the position of the pre-blowing bottle forming cavity. The heating pre-blowing bottle forming mold 520 is closed, the blowing mouth end of the bottle blank faces upwards and at least partially extends out of the upper side wall of the heating pre-blowing bottle forming mold 520, the bottle blank body is located in the pre-blowing bottle forming cavity, the heating pre-blowing bottle forming mold 520 heats the bottle blank, the bottle blowing mechanism 540 performs a first bottle blowing process on the bottle blank, high-pressure gas is blown from the blowing mouth end of the bottle blank, the bottle blank expands and stretches (extends) along the pre-blowing bottle forming cavity, so that the bottle blank is blown out of the shape of the pre-blowing bottle forming cavity, the bottle blank reaches the bottle blowing forming temperature and the bottle blowing forming shape, and the pre-formed bottle blank is obtained. Then, the mold 520 is heated and opened, and the second clamping assembly 632 moves the preform to the bottle blowing apparatus 502.

The mold 520 for forming a pre-blown bottle by heating is a mature prior art and is mainly used for heating a bottle blank and guiding the bottle blank to stretch (extend), and therefore, the detailed structure and principle of the mold 520 for forming a pre-blown bottle by heating are not repeated herein.

Specifically, the heating pre-blowing bottle forming mold 520 can heat the heating pre-blowing bottle forming mold 520 to a required temperature through oil temperature heating, electric heating and other modes, and then the heating pre-blowing bottle forming mold 520 transfers heat to the bottle blank located in the pre-blowing bottle forming cavity, so that the bottle blank reaches the bottle blowing forming temperature.

The second mold opening and closing support 510 is mainly used to drive the first heating film 520 and the second heating film 530 to move in a mold opening and closing manner, and is commonly used in injection mold equipment.

Further, referring to fig. 9, 10 and 11, the bottle blowing mechanism 540 includes a plurality of tube pushing cylinders 541 and a plurality of high pressure blowing tubes 542. The plurality of push pipe cylinders 541 are arranged at the upper end of the second mold opening and closing support 510, a high pressure blow pipe 542 is installed on a driving rod of each push pipe cylinder 541, the high pressure blow pipe 542 is vertically arranged, and a blow port is formed at the lower end of the high pressure blow pipe 542. Each high-pressure blowing pipe 542 is arranged corresponding to a bottle blank.

Referring to fig. 9, 10 and 11, the tube pushing cylinder 541 drives the high-pressure air blowing tube 542 to move downwards, so that the lower end of the high-pressure air blowing tube 542 extends into a bottle blowing port end of a bottle blank in a pre-blowing bottle forming cavity of the heating pre-blowing bottle forming device 501, the heating pre-blowing bottle forming device 501 heats the bottle blank to a bottle blowing forming temperature, and the high-pressure air blowing tube 542 blows out high-pressure air, so that the bottle blank expands and stretches along the pre-blowing bottle forming cavity. And opening the first heating film 520 and the second heating film 530 to obtain a preformed bottle blank. After the bottle blowing is completed, the tube pushing cylinder 541 drives the high-pressure air blowing tube 542 to move upwards to leave the bottle blowing opening end of the bottle blank.

Further, referring to fig. 9, 10 and 11, a through hole 5411 is formed through the driving rod of the push pipe cylinder 541, the through hole 5411 is communicated with the high pressure blow pipe 542, and an air inlet 5412 communicated with the through hole 5411 is further formed at a side portion of the push pipe cylinder 541. The air inlet 5412 is communicated with an air pump through an air pipe, and high-pressure air is provided through the air pump.

In another embodiment of the present invention, referring to fig. 9, fig. 10 and fig. 11, the bottle blowing mechanism 540 further includes a stretching bottle blank assembly 543. The stretching preform assembly 543 comprises a driving part 5431 mounted on the second mold opening and closing bracket 510, a connecting frame 5432 mounted on the driving part 5431 and a plurality of stretching rods 5433. The plurality of stretching rods 5433 are arranged on the connecting frame 5432, and the plurality of stretching rods 5433 and the plurality of high-pressure blowing pipes 542 are arranged in a one-to-one correspondence. The stretching rod 5433 sequentially and movably penetrates through the push pipe cylinder 541, the through hole 5411 and the inner hole of the high-pressure blowing pipe 542, and a ventilation gap is formed between the stretching rod 5433 and the high-pressure blowing pipe 542 and the through hole 5411 and provides high-pressure gas to pass through. The driving part 5431 drives the plurality of stretching rods 5433 to move up and down.

Referring to fig. 9, 10 and 11, during bottle blowing, the driving member 5431 drives the stretching rod 5433 to move down and stretch into the cavity of the bottle preform, and blows high-pressure gas into the cavity of the bottle preform, so that the bottle preform expands and stretches, and meanwhile, the stretching rod 5433 moves down and pushes the bottle preform to stretch, so as to guide the bottle preform to stretch, so that the bottle preform is easier to stretch and form, the bottle preform is stretched uniformly, and the forming effect is good. After the bottle blowing is completed, the driving part 5431 drives the stretching rod 5433 to move up and away from the bottle blank.

Referring to fig. 9, 10 and 11, the driving member 5431 includes a stand 5431a, a driving motor 5431b, two second timing wheels 5431c, a second timing belt 5431d, and a fifth Z-guide rail 5431 e. The stand 5431a is mounted at the upper end of the second mold opening and closing support 510, the two second synchronizing wheels 5431c are respectively rotatably connected to the side walls of the stand 5431a through second connecting seats, the driving motor 5431b is fixedly mounted on the stand 5431a, and the rotating shaft of the driving motor 5431b is connected with the shaft of one of the synchronizing wheels 412. A fifth Z guide rail 5431e is attached to a side wall of the stand 5431a, and the connecting bracket 5432 is connected to the second timing belt 5431d and a slider on the fifth Z guide. The driving motor 5431b drives the connecting rack 5432 to move up and down along the fifth Z-direction, thereby driving the stretching rod 5433 to move up and down.

In another embodiment of the present invention, referring to fig. 9, 10 and 11, the stretching rod 5433 is a heating stretching rod having a heating function, and the heating stretching rod may adopt a heating manner (heating wire, heating plate, etc.) of electric heating, but is not limited to such a heating manner of electric heating. The stretching rod 5433 can stretch into the inner cavity of the bottle blank from the bottle blowing port end of the bottle blank in an adaptive manner, the outer layer of the bottle blank is heated by heating the pre-blowing bottle forming die 520, the inner cavity of the bottle blank stretched into the stretching rod 5433 heats the inner layer of the bottle blank, and then the inner layer and the outer layer of the bottle blank are simultaneously heated, so that the bottle blank is uniformly heated, high-pressure gas is blown into the inner cavity of the bottle blank from the gas blowing port of the high-pressure gas blowing pipe 542 during bottle blowing processing, the bottle blank can uniformly expand and extend to form a bottle body under the stretching and heating effects of the stretching rod 5433, the finished product quality is good, and the rejection rate is low.

In other embodiments, an oil path is arranged in the heating high-pressure air blowing pipe, and heating oil flows through the oil path, so that the heating high-pressure air blowing pipe can be heated by a heating mode of oil temperature heating.

In another embodiment of the present invention, referring to fig. 1, 2 and 3, two rows of the preform take-out heads 440 are arranged on the first mounting plate 430, and two rows of the preform forming cavities are correspondingly arranged between the front mold 320 and the rear mold 330. Referring to fig. 1, 2 and 6, the rack 100 is correspondingly provided with two second manipulator devices 6000, and the two second manipulator devices 600 respectively move and take the bottle preforms located on the two rows of bottle preform taking heads 440.

Referring to fig. 1, 6 and 9, the heated pre-bottle blowing mold 520 includes a first heated film 521, a heated cavity mold 522 and a second heated film 523. The first heating film 521 and the second heating film 523 are both mounted on the second mold opening and closing support 510, the heating cavity mold 522 is mounted on the machine frame 100 through a support frame 524, and the heating cavity mold 522 is located between the first heating film 521 and the second heating film 523. A row of pre-bottle blowing forming cavities are arranged between the first heating film 521 and the heating cavity die 522 and between the second heating film 523 and the heating cavity die 522. The two rows of pre-blown bottle forming cavities are respectively arranged corresponding to the two second manipulator devices 600. When the dies are closed, the first heating film 521, the heating cavity die 522 and the second heating film 523 are sequentially closely attached to each other.

Referring to fig. 1 and fig. 9, two bottle blowing mechanisms 540 are disposed above the heating pre-bottle blowing mold 520, and the two bottle blowing mechanisms 540 are respectively disposed in one-to-one correspondence with the two rows of pre-bottle blowing mold cavities.

Therefore, the bottle blank forming die forms two rows of bottle blanks at one time, and the two rows of bottle blanks are moved out of the bottle blank forming die through the first mechanical hand device. Then, the two rows of bottle blanks on the first manipulator device are transferred and loaded at the positions of the two rows of bottle pre-blowing forming cavities of the heating pre-blowing forming mold 520 through the second manipulator device, the heating pre-blowing forming mold 520 simultaneously performs a heating process on the two rows of bottle blanks, and the two bottle blowing mechanisms 540 simultaneously perform a first bottle blowing process on the two rows of bottle blanks, so that the two rows of bottle blanks reach a bottle blowing forming temperature and a bottle blowing forming shape, and the two rows of bottle blanks are obtained. The bottle blowing forming device 502 and the heating pre-blowing bottle forming device 501 have basically the same structure and working principle, and the bottle blowing forming device 502 performs a second bottle blowing process on the two rows of pre-formed bottle blanks to obtain two rows of formed bottles after cooling. Therefore, the two rows of bottle blanks can be molded simultaneously to obtain molded bottles, the production efficiency is improved in multiples, and the productivity is high.

It can be understood that the bottle preform forming cavity, the bottle preform taking head 440 and the pre-blowing bottle forming cavity can be arranged in more than two rows, correspondingly, the second manipulator device 600 and the bottle blowing mechanism 540 can be arranged in more than two rows, and a plurality of rows of bottle preforms are formed simultaneously to obtain a formed bottle body, so that the production efficiency is improved in multiples, and the productivity is high. Therefore, the number of the bottle preform forming cavities, the bottle preform taking head 440 and the pre-bottle blowing forming cavities, and the number of the second manipulator device 600 and the bottle blowing mechanism 540 can be determined according to actual production requirements, and this embodiment is not limited herein.

Referring to fig. 1, the structure and the working principle of the bottle blowing and forming device 502 and the heating pre-blowing and forming device 501 are basically the same, and the difference is that: the bottle blowing mold of the heating pre-blowing bottle forming device 501 is used for heating the bottle blank, and the bottle blowing cavity of the bottle blowing mold of the heating pre-blowing bottle forming device 501 is a pre-blowing bottle cavity, and the bottle blank is subjected to a first bottle blowing process to obtain a pre-formed bottle blank. The bottle blowing cavity of the bottle blowing mold of the bottle blowing molding device 502 is a bottle blowing molding cavity, and is used for performing a second bottle blowing process on the preformed bottle blank, and meanwhile, the bottle blowing molding device 502 is provided with a cooling water channel for cooling the bottle blank formed by the second bottle blowing, and a molded bottle body is obtained after cooling. The bottle blowing forming cavity is set to be the required set shape according to the actual production requirement, and set products, such as beverage bottles, hanging bottles or medicine bottles, are obtained.

In another embodiment of the present invention, referring to fig. 1, the one-step injection stretch blow molding all-in-one machine further comprises a third robot device 700. The third robot device 700 has a structure and an operation principle substantially identical to those of the second robot device 600, and is different from the second robot device 600 in that the third robot device 700 has less first gripping robot 620 than the second robot device 600. The third manipulator device 700 is used for moving and loading the formed bottle body which is blown by the bottle blowing forming device 502 to the next station or the finished product collecting station, the whole process is automatic, the processing efficiency is high, and the labor cost and the manufacturing cost are saved.

In another embodiment of the present invention, referring to fig. 1 and fig. 12, a one-step injection, stretch blow molding processing method is further provided, which is applied to a one-step injection, stretch blow molding all-in-one machine, where the one-step injection, stretch blow molding all-in-one machine includes a rack 100, an injection molding device 200, a bottle blank molding mold 300, a heating pre-blown bottle molding device 501, a bottle blowing molding device 502, a first manipulator device 400, and a second manipulator device 600. The one-step injection stretch blow molding processing method comprises the following steps:

s100: the bottle blank forming mold 300 is closed, the plastic plasticized by the injection molding device 200 is injected into the bottle blank forming cavity of the bottle blank forming mold 300, and the bottle blank is cooled and formed in the bottle blank forming cavity;

s200: opening the bottle preform forming mold 300, wherein the first manipulator 400 is close to the bottle preform forming cavity, and taking out the cooled and formed bottle preform from the bottle preform forming mold 300;

s300: the second manipulator device 600 clamps the preforms on the first manipulator device 400 and transfers the preforms to the heating pre-blow bottle forming device 501;

s400: the heating pre-bottle blowing forming device 501 heats the bottle blank and performs a first bottle blowing process, so that the bottle blank reaches a bottle blowing forming temperature and a bottle blowing forming shape, and a preformed bottle blank is obtained;

s500: the second manipulator device 600 clamps the preformed bottle blank and transfers the bottle blank to the bottle blowing and forming device 502;

s600: the bottle blowing molding device 502 performs a second bottle blowing process on the preform, blows the preform into a set shape by high-pressure gas, and cools the preform to obtain a molded bottle.

2. Firstly, heating and first bottle blowing processes are carried out on a bottle blank through a heating pre-bottle blowing forming device 501, so that the bottle blank reaches a bottle blowing forming temperature and a bottle blowing forming shape, and a preformed bottle blank is obtained; and then the bottle blowing process of the second time is carried out on the preformed bottle blank by the bottle blowing forming device 502, the bottle blank is blown into the set shape by high-pressure gas, a formed bottle body is obtained after cooling, the bottle blowing process of two times is adopted, the bottle blank is subjected to the blow molding process to have a transition process, so that the bottle blank forming process is smoothly and uniformly carried out, and the rejection rate of the formed bottle body is low and the quality is good.

The rest of this embodiment is the same as the first embodiment, and the unexplained features in this embodiment are explained by the first embodiment, which is not described herein again.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the present invention pertains, the architecture form can be flexible and varied without departing from the concept of the present invention, and a series of products can be derived. But rather a number of simple derivations or substitutions are made which are to be considered as falling within the scope of the invention as defined by the appended claims.

Claims

1. The one-step injection, drawing and blowing integrated molding machine is characterized by comprising a rack, an injection molding device, a bottle blank molding die, a heating and bottle blowing molding device, a first manipulator device and a second manipulator device; the injection molding device, the bottle blank forming mold, the first manipulator device and the heating bottle blowing forming device are sequentially arranged on the rack, and the second manipulator device is arranged beside the heating bottle blowing forming device; the injection molding device injects plasticized plastic into the bottle blank forming mold, the bottle blank is cooled and formed in a bottle blank forming cavity of the bottle blank forming mold, then the first mechanical hand device takes out the cooled and formed bottle blank, then the second mechanical hand device moves and loads the bottle blank clamped on the first mechanical hand device on the heating bottle blowing forming device, and finally the heating bottle blowing forming device performs a heating process and a bottle blowing process on the bottle blank to obtain a formed bottle body.

2. The one-step injection, stretch blow molding all-in-one machine of claim 1, wherein: the bottle blank forming die comprises a first open-close die support, a front die and a rear die; the first mold opening and closing support is arranged on the rack, the front mold and the rear mold are both arranged on the first mold opening and closing support, and the front mold and the rear mold are distributed in a left-right mode; a plurality of bottle blank forming cavities are arranged between the front die and the rear die;

3. The one-step injection, stretch blow molding all-in-one machine of claim 2, wherein: each bottle blank taking head is sleeved with a heating sleeve.

4. The one-step injection, stretch blow molding all-in-one machine of claim 2, wherein: the first manipulator device also comprises a material ejecting mechanism; the material ejecting mechanism comprises an ejecting cylinder, an ejecting mounting plate and a plurality of ejecting rods; the material ejecting cylinder is arranged on the first mounting plate, the material ejecting mounting plate is connected with a driving rod of the material ejecting cylinder, and a plurality of material ejecting rods are arranged on the material ejecting mounting plate; the bottle blank taking device comprises a plurality of bottle blank taking heads, a first mounting plate and a plurality of ejection rods, wherein one end of each bottle blank taking head, which is close to the first mounting plate, is provided with ejection holes which are coaxial and communicated with the material taking groove, the ejection rods and the ejection holes are arranged in a one-to-one correspondence manner, the ejection rods movably penetrate through the ejection mounting plate and penetrate through the ejection holes, and the ejection rods are used for pushing the bottle blowing opening end of a bottle blank out of the material taking groove.

5. The one-step injection stretch blow molding all-in-one machine according to any one of claims 2 to 4, characterized in that: the heating bottle blowing forming device comprises a heating pre-blowing bottle forming device and a bottle blowing forming device which are sequentially arranged on the rack;

the first clamping manipulator comprises a first Y-direction shifting component arranged on the second X-direction shifting mechanism, a first Z-direction shifting component arranged on the first Y-direction shifting component, and a first clamping component arranged on the first Z-direction shifting component; the second X-direction transfer mechanism, the first Y-direction transfer component and the first Z-direction transfer component drive the first clamping component to clamp the bottle blank on the first manipulator device and transfer the bottle blank to the heating pre-blowing bottle forming device, and the heating pre-blowing bottle forming device performs heating and first bottle blowing processes on the bottle blank to enable the bottle blank to reach a bottle blowing forming temperature and a bottle blowing forming shape so as to obtain a preformed bottle blank;

the second clamping manipulator comprises a second Y-direction transferring component arranged on the second X-direction transferring mechanism and a second clamping component arranged on the second Y-direction transferring component; and the second X-direction transfer mechanism and the second Y-direction transfer assembly drive the second clamping assembly to clamp the preformed bottle blank and transfer the preformed bottle blank to the bottle blowing forming device, and the bottle blowing forming device performs a second bottle blowing process on the preformed bottle blank and obtains a formed bottle after cooling.

6. The one-step injection, stretch blow molding all-in-one machine of claim 5, wherein: the first clamping assembly comprises a first clamping mounting plate, a plurality of pairs of clamping pieces, a connecting plate and a driving piece; the first clamping mounting plate is mounted on the first Z-direction transfer assembly, and a plurality of pairs of clamping pieces are arranged on the first clamping mounting plate; the first ends of the first clamping piece and the second clamping piece of each pair of clamping pieces are rotatably connected to the first clamping mounting plate through first connecting shafts, the first ends of the first clamping piece and the second clamping piece are respectively provided with gears which are meshed and connected with each other, and a clamping position is formed between the second ends of the first clamping piece and the second clamping piece; a first end of the second clamping piece extends outwards to form a connecting part, and the connecting part is rotatably connected to the connecting plate through a first connecting shaft; the driving piece is mounted on the first clamping mounting plate, and the connecting plate is mounted on the driving piece; the driving piece drives the first clamping piece and the second clamping piece to mutually approach or separate through the connecting plate, so that the clamping position clamps or releases the bottle blank.

7. The one-step injection, stretch blow molding all-in-one machine of claim 5, wherein: the heating pre-blowing bottle forming device comprises a second mold opening and closing support, a heating pre-blowing bottle forming mold and a bottle blowing mechanism; the second mold opening and closing support is arranged on the rack, the heating pre-blowing bottle forming mold is arranged on the second mold opening and closing support, and the heating pre-blowing bottle forming mold is opened left and right; the heating pre-blowing bottle forming mold is provided with a plurality of pre-blowing bottle forming cavities, and the pre-blowing bottle forming cavities and the bottle blank taking heads are arranged in a one-to-one correspondence manner; the bottle blowing mechanism is arranged above the heating pre-blowing bottle forming mold;

8. The one-step injection, stretch blow molding all-in-one machine of claim 7, wherein: a through hole penetrates through a driving rod of the push pipe cylinder, the through hole is communicated with the high-pressure air blowing pipe, and an air inlet communicated with the through hole is formed in the side part of the push pipe cylinder;

the bottle blowing mechanism also comprises a stretching bottle blank assembly; the stretching bottle blank assembly comprises a driving part arranged on the second mold opening and closing support, a connecting frame arranged on the driving part and a plurality of stretching rods; the plurality of stretching rods are arranged on the connecting frame in a row, and are arranged in one-to-one correspondence with the plurality of high-pressure air blowing pipes; the stretching rods sequentially and movably penetrate through the pipe pushing cylinder, the through hole and the inner hole of the high-pressure air blowing pipe, air gaps are formed among the stretching rods, the high-pressure air blowing pipe and the through hole, and the driving part drives the plurality of stretching rods to move up and down.

9. The one-step injection, stretch blow molding all-in-one machine of claim 7, wherein: two rows of bottle preform taking heads are arranged on the first mounting plate, and two rows of bottle preform forming cavities are correspondingly arranged between the front die and the rear die; the rack is correspondingly provided with two second mechanical hand devices which respectively move and take bottle blanks positioned on the two rows of bottle blank taking heads;

the heating pre-bottle blowing forming mold comprises a first heating film, a heating cavity mold and a second heating film; the first heating film and the second heating film are both arranged on the second opening and closing mold support, the heating cavity mold is arranged on the rack through a support frame, and the heating cavity mold is positioned between the first heating film and the second heating film; a row of pre-blown bottle forming cavities are arranged between the first heating film and the heating cavity die and between the second heating film and the heating cavity die; the two rows of pre-blown bottle forming cavities are respectively arranged corresponding to the two second manipulator devices;

10. The one-step injection, drawing, blowing and forming processing method is applied to the one-step injection, drawing, blowing and forming all-in-one machine and is characterized in that the one-step injection, drawing, blowing and forming all-in-one machine comprises a rack, an injection molding device, a bottle blank forming die, a heating pre-blowing bottle forming device, a bottle blowing forming device, a first mechanical arm device and a second mechanical arm device; the one-step injection stretch blow molding processing method comprises the following steps: