WO2024060294A1

WO2024060294A1 - Internal coating module, injection-molding/blow-molding/coating all-in-one machine and injection-molding/blow-molding/coating/filling/sealing all-in-one machine for plastic container

Info

Publication number: WO2024060294A1
Application number: PCT/CN2022/122647
Authority: WO
Inventors: 刘祥华; 黄盛秋; 张旭; 张昌凡; 郑湘明; 陈一
Original assignee: 湖南千山制药机械股份有限公司
Priority date: 2022-09-20
Filing date: 2022-09-29
Publication date: 2024-03-28
Also published as: CN115384033A

Abstract

An internal coating module, injection-molding/blow-molding/coating all-in-one machine and injection-molding/blow-molding/coating/filling/sealing all-in-one machine for a plastic container. The internal coating module comprises an internal coating unit (100) used for forming a barrier coating on the inner wall surface of a plastic container. The internal coating unit (100) comprises: a fixing assembly (110) used for clamping the plastic container; a gasifying assembly (120) used for receiving and gasifying a coating material to generate coating gas; a gas conveying assembly (130) communicated with the gasifying assembly (120) and used for abutting against the fixing assembly (110) to enable the plastic container to be located in a closed cavity and extending into the plastic container to input the coating gas; a vacuumizing assembly (140) used for vacuumizing the closed cavity where the plastic container is located; and a conductive assembly (150) arranged in the fixing assembly (110) and used for applying a voltage to the outside of the plastic container such that the coating gas in the plastic container is electrolyzed into plasma in a vacuum state and then the plasma is uniformly attached to the inner wall surface of the plastic container to form the barrier coating. The internal coating module and the all-in-one machines solve the problem that the barrier properties of plastic containers are relatively low and thus the quality of contents is difficult to guarantee.

Description

Plastic container inner plating module, injection blow plating all-in-one machine and injection blow plating and potting all-in-one machine

Technical field

The present invention relates to the technical field of plastic container processing, and in particular, to an inner plating module for plastic containers. In addition, the present invention also relates to an integrated plastic container injection and blow plating machine including the above-mentioned plastic container inner plating module. In addition, the present invention also relates to an integrated machine for injection blowing, plating, filling and sealing of plastic containers including the above-mentioned integrated machine for injection blowing and plating of plastic containers.

Background technique

Plastic bottle is a commonly used plastic container. It is widely used in medical liquid containers, medical powder containers, medicine containers, beverage containers, seasoning containers, etc., so its demand is very huge.

However, compared with cans and glass bottles, plastic bottles have relatively low barrier properties and are more likely to penetrate gases such as oxygen and carbonic acid, which will greatly affect the quality of their contents. In order to save resources and reduce environmental impact, Pollution, the lightweight of plastic bottles is one of the important solutions, but at the same time, the lighter the plastic bottle, the thinner its wall thickness, and the correspondingly lower barrier properties. Therefore, the low barrier properties of plastic bottles are also important for plastic bottles. The key issue of lightweight needs to be solved urgently.

And the processing of existing plastic containers is usually obtained by injection molding, blowing, filling and sealing processes, such as the Chinese utility model patent CN217293464U. Its barrier properties only depend on the properties of the plastic itself and the dimensional requirements during processing, and plastic Under the same size requirements, the barrier properties of containers are often lower than those of metal containers and glass containers.

Contents of the invention

The present invention provides a plastic container inner plating module, an injection-blowing plating integrated machine and an injection-blowing plating filling and sealing integrated machine to solve the technical problem that the barrier property of existing plastic containers is relatively low and the quality of the contents thereof is difficult to guarantee.

According to one aspect of the present invention, an inner plating module for a plastic container is provided, which includes an inner plating module for forming a barrier coating on the inner wall surface of the plastic container. The inner plating module includes a fixing assembly for clamping the plastic container, A gasification component that receives and vaporizes the coating material to generate coating gas, and an output connected to the gasification component for pressing against the fixed component so that the plastic container is in a closed cavity and extending into the plastic container to input the coating gas. gas component, a vacuum component used to evacuate the closed cavity of the plastic container, and a vacuum component arranged in the fixed component for applying voltage to the outside of the plastic container so that the coating gas in the plastic container is electrolyzed into plasma in a vacuum state The body then evenly adheres to the inner wall surface of the plastic container to form a conductive component with a barrier coating.

As a further improvement of the above technical solution:

Further, the fixed component includes an inner plating frame, a clamping bottle mold fixedly arranged on the inner plating frame for supporting the plastic container, and a movable end movably arranged on the inner plating frame along the width direction of the inner plating frame. There is a driving mechanism on the bottle clamping machine and a bottle clamping movable mold fixedly arranged on the movable end of the driving mechanism for clamping the plastic container in cooperation with the bottle clamping fixed mold.

Further, the side wall of the bottle clamping fixed mold is concavely provided with a support groove for supporting the plastic container along the width direction of the inner plating frame. The support grooves on the bottle clamping fixed mold are arranged at intervals along the length direction of the inner plating frame. Multiple.

Further, the side wall of the bottle clamping movable mold is recessed with a clamping groove for clamping the plastic container in cooperation with the support groove along the width direction of the inner plating frame. The clamping groove on the bottle clamping movable mold is along the length of the inner plating frame. One or more are arranged at intervals in the direction, and the clamping grooves and the supporting grooves are arranged in one-to-one correspondence.

Further, the conductive component includes a first electrode arranged in the bottle clamping movable mold, a second electrode arranged in the bottle clamping fixed mold, and a conductive power source electrically connected to the first electrode and the second electrode respectively.

Further, the gas transmission assembly includes a gas transmission assembly that is movably arranged along the height direction of the inner plating frame and communicates with the gasification assembly for pressing against the fixed assembly to keep the plastic container in the closed cavity and extending into the plastic container for input. A gas transmission conduit for coating gas and a gas transmission control valve arranged on the gas transmission conduit for controlling the flow of coating gas.

Further, the vacuum assembly includes a first air extraction conduit connected to the air delivery assembly for communicating with the closed cavity where the plastic container is located, and a first air extraction conduit arranged on the first air extraction conduit for controlling the air extraction flow. A control valve and a first vacuum device connected to the first air extraction conduit for extracting air from the closed cavity of the plastic container to form a vacuum environment.

Furthermore, the vacuum pumping component also includes a second air extraction duct connected to the gasification component, a second air extraction control valve arranged on the second air extraction duct for controlling the air extraction flow rate, and a second vacuum pump connected to the second air extraction duct for extracting the internal air of the gasification component to form a vacuum environment.

According to another aspect of the present invention, an integrated injection-blowing and plating machine for plastic containers is also provided, which includes the above-mentioned integrated injection-blowing and plating machine for plastic containers. The integrated injection-blowing and plating machine also includes an injection molding module for injection molding to produce a green body. , a blowing module for blowing the green body to form a plastic container, and a blowing module for transferring the green body formed and outputted by the injection molding module to the blowing module and blowing the plastic container formed and outputted by the blowing module inward. Transfer mechanism for plated module transfer.

According to another aspect of the present invention, an integrated injection-blowing, plating-filling and sealing machine for plastic containers is also provided, which includes the above-mentioned integrated injection-blowing and plating machine for plastic containers. The filling module into the plastic container and the sealing module for sealing the bottle mouth of the plastic container. The transfer mechanism is also used to transfer the plastic container plated and output from the inner plating module to the filling module and to the filling module. The filled and output plastic containers are transferred to the sealing module.

The invention has the following beneficial effects:

In the plastic container inner plating module of the present invention, a barrier coating is formed on the inner wall surface of the plastic container through the inner plating module to obtain a high barrier plastic container. The component is pressed tightly to keep the plastic container in a closed cavity so that the plastic container is in a sealed state; the air in the closed cavity of the plastic container is extracted through the vacuum component until the vacuum degree requirements are met, and the coating material is vaporized through the vaporization component To generate coating gas, and transport the coating gas to the inside of the plastic container through the gas transmission component, apply voltage to the plastic container through the conductive component so that the coating gas is electrolyzed into plasma in a vacuum state, and then adheres uniformly to the inside of the plastic container A barrier coating is formed on the wall to prevent the penetration of gases such as oxygen and carbonic acid as much as possible, which greatly improves the barrier properties of the plastic container. The quality of the contents inside the plastic container is guaranteed; this solution uses fixed components, gas transmission components, and exhaust components. The vacuum component, the gasification component and the conductive component cooperate with each other to form a barrier coating on the inner wall surface of the plastic container to obtain a high-barrier plastic container. Compared with the existing technology, the gas permeability of high-barrier plastic containers is low. , the quality of its internal contents is high, and it facilitates the realization of lightweight plastic containers, which is conducive to saving resources and reducing environmental pollution. It is highly practical and suitable for widespread promotion and application.

In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail below with reference to the drawings.

Description of drawings

The drawings forming a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached picture:

Figure 1 is a schematic structural diagram of a plastic container inner plating module according to a preferred embodiment of the present invention;

Figure 2 is a schematic structural diagram of a plastic container inner plating module according to a preferred embodiment of the present invention;

Figure 3 is a schematic structural diagram of the plastic container inner plating module according to the preferred embodiment of the present invention;

FIG4 is a schematic structural diagram of a plastic container injection-blowing plating machine according to a preferred embodiment of the present invention;

Figure 5 is a schematic structural diagram of an injection-blowing, plating and filling-sealing machine for plastic containers according to a preferred embodiment of the present invention;

Figure 6 is a schematic structural diagram of a plastic bottle according to a preferred embodiment of the present invention.

illustration:

100. Internal plating module; 110. Fixed components; 111. Internal plating frame; 112. Bottle clamping fixed mold; 113. Driving mechanism; 114. Bottle clamping movable mold; 120. Gasification component; 130. Gas transmission component; 131 , gas transmission conduit; 132. gas transmission control valve; 140. vacuum assembly; 141. first air extraction conduit; 142. first air extraction control valve; 143. first vacuum evacuation device; 144. second air extraction conduit ; 145. Second air extraction control valve; 150. Conductive component; 151. First electrode; 152. Second electrode; 200. Injection molding module; 300. Blowing module; 400. Transfer mechanism; 500. Body preheating module ; 600, filling module; 700, sealing module.

Detailed ways

The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in a variety of different ways as defined and covered below.

Figure 1 is a schematic structural view of an inner plating module for a plastic container according to a preferred embodiment of the present invention; Figure 2 is a schematic structural view of an inner plating module for a plastic container according to a preferred embodiment of the present invention; Figure 3 is a schematic structural view of an inner plating module for a plastic container according to a preferred embodiment of the present invention. The structural schematic diagram of the plating module; Figure 4 is the structural schematic diagram of the plastic container injection blowing and plating integrated machine according to the preferred embodiment of the present invention; Figure 5 is the structural schematic diagram of the plastic container injection blowing, plating and filling all-in-one machine according to the preferred embodiment of the present invention; Figure 6 is a schematic structural diagram of a plastic bottle according to a preferred embodiment of the present invention.

As shown in FIGS. 1 to 3 , the plastic container inner plating module of the present embodiment comprises an inner plating module 100 for forming a barrier coating on the inner wall surface of the plastic container, the inner plating module 100 comprises a fixing component 110 for clamping the plastic container, a gasification component 120 for receiving and gasifying a coating material to generate a coating gas, a gas supply component 130 connected to the gasification component 120 and used to press against the fixing component 110 so that the plastic container is in a closed cavity and extend into the plastic container to input the coating gas, a vacuuming component 140 for evacuating the closed cavity where the plastic container is located, and a conductive component 150 arranged in the fixing component 110 and used to apply a voltage to the outside of the plastic container so that the coating gas in the plastic container is electrolyzed into plasma under a vacuum state and then uniformly adhered to the inner wall surface of the plastic container to form a barrier coating. Specifically, the plastic container inner plating module of the present invention forms a barrier coating on the inner wall surface of the plastic container through the inner plating module 100 to obtain a plastic container with high barrier properties, clamps and fixes the plastic container through the fixing component 110, and then presses the fixing component 110 with the gas transmission component 130 to place the plastic container in a closed cavity, so that the plastic container is in a sealed state, and the outer wall of the plastic container does not contact the gas; the air in the closed cavity where the plastic container is located is extracted through the vacuum component 140 until the vacuum requirement is met, the coating material is vaporized through the gasification component 120 to generate coating gas, and the coating gas is transmitted to the inside of the plastic container through the gas transmission component 130, and a voltage is applied to the plastic container through the conductive component 150 so that the coating gas is in a vacuum state. In an empty state, it is electrolyzed into plasma, and then evenly adheres to the inner wall surface of the plastic container to form a barrier coating, so as to prevent the permeation of gases such as oxygen and carbon dioxide as much as possible, thereby greatly improving the barrier property of the plastic container, and the quality of the internal contents of the plastic container is guaranteed; in this solution, a barrier coating is formed on the inner wall surface of the plastic container through the coordination of the fixing component 110, the gas transmission component 130, the vacuum component 140, the gasification component 120 and the conductive component 150 to obtain a high-barrier plastic container. Compared with the prior art, the high-barrier plastic container has a low gas permeability, the quality of its internal contents is high, and it is easy to achieve lightweight plastic containers, which is beneficial to saving resources and reducing environmental pollution. It is highly practical and suitable for wide promotion and application. Optionally, the inner plating module is used as an inner plating process equipment for plastic containers in the production line of plastic containers, and is specifically used between the blowing process and the filling process of plastic containers, that is, after the plastic container blank is blown into a plastic container by the blowing process, the plastic container is plated internally, and then the plastic container is filled, that is, the inner plating module belongs to a module of the injection blowing plating machine, or a module of the injection blowing plating filling machine. Optionally, the coating material is aluminum, silicon dioxide or other materials with the same properties. Optionally, the coating material is aluminum wire, and the vacuum assembly 140 extracts vacuum from the closed cavity where the plastic container is located to make the vacuum degree reach ^4x10-4 mba, and the gasification assembly 120 includes a heater, and the heating temperature of the heater is 1300-1400°C to achieve the gasification of the aluminum wire. It should be understood that the specific structure of the heater belongs to the well-known technology of those skilled in the art, and will not be repeated here. Optionally, the plastic container includes a plastic bottle. It should be understood that, since the strength of plastic containers varies and most plastic containers are easily deformed, if only the inner cavity of the plastic container is evacuated, it is easy to cause the outer part of the plastic container to be compressed and deformed. However, if the closed cavity where the plastic container is located is evacuated, the pressure inside and outside the plastic container is balanced, and the plastic container is not easy to deform. It should be understood that after the barrier coating is formed on the inner wall of the plastic container, the contact between the internal contents of the plastic container and the plastic container substrate can be greatly reduced, that is, it can be used to store and contain contents that will react with plastic or be contaminated by plastic, thereby increasing the scope of application of the plastic container.

As shown in Figure 1, in this embodiment, the fixing component 110 includes an inner plating frame 111, a bottle clamping mold 112 fixedly arranged on the inner plating frame 111 for supporting the plastic container, and a movable end along the inner plating frame. A driving mechanism 113 movably arranged on the internal plating frame 111 in the width direction of 111 and a bottle clamping movable mold 114 fixedly arranged on the movable end of the driving mechanism 113 for cooperating with the bottle clamping fixed mold 112 to clamp the plastic container. . Specifically, firstly, the bottle clamping fixed mold 112 and the driving mechanism 113 are supported by the internal plating frame 111, then the plastic container is supported by the bottle clamping fixed mold 112, and finally the driving mechanism 113 works to drive the bottle clamping movable mold 114 and the bottle clamping mechanism 113. The fixed mold 112 clamps the plastic container tightly. Optionally, the driving mechanism 113 is a driving cylinder or a driving oil cylinder. It should be understood that the specific structure of the driving cylinder or the driving oil cylinder is a well-known technology for those skilled in the art, and will not be described in detail here.

As shown in Figures 1 and 2, in this embodiment, the side wall of the bottle clamping fixed mold 112 is recessed with a support groove for supporting the plastic container along the width direction of the inner plating frame 111, and the bottle clamping fixed mold 112 has a support groove. One or more inner plating racks 111 are arranged at intervals along the length direction. Specifically, rows of plastic containers are supported by multiple support grooves arranged in rows, which facilitates internal plating of rows of plastic containers and greatly improves internal plating efficiency.

As shown in Fig. 1 and Fig. 2, in this embodiment, the side wall of the bottle clamping dynamic mold 114 is recessed with a clamping groove for clamping the plastic container in cooperation with the support groove along the width direction of the inner plating frame 111, and one or more clamping grooves are arranged at intervals along the length direction of the inner plating frame 111 on the bottle clamping dynamic mold 114, and the clamping grooves and the support grooves are arranged one by one. Specifically, the plastic container is clamped and fixed by the clamping grooves arranged in rows and the supporting grooves in rows, which facilitates the inner plating of the rows of plastic containers and greatly improves the inner plating efficiency. Optionally, the bottle mouths of the rows of plastic containers are sealed at the same time by the gas delivery component 130, and the coating gas can be simultaneously input into the rows of plastic containers. Optionally, the air in the closed space where the rows of plastic containers are located is simultaneously extracted by the vacuum assembly 140, so that the rows of plastic containers meet the vacuum requirements. Optionally, a voltage is simultaneously applied to the outside of the rows of plastic containers by the conductive component 150, so that the coating gas in the rows of plastic containers is electrolyzed into plasma at the same time.

As shown in Figure 1, in this embodiment, the conductive component 150 includes a first electrode 151 arranged in the bottle clamping movable mold 114, a second electrode 152 arranged in the bottle clamping fixed mold 112, and the first electrode 151 and the first electrode 151 arranged in the bottle clamping fixed mold 112 respectively. The second electrode 152 is electrically connected to the conductive power source. Specifically, the conductive power source operates to energize the first electrode 151 and the second electrode 152 to apply voltage outside the plastic container to achieve electrolysis of the coating gas in the plastic container. Optionally, the first electrode 151, the second electrode 152 and the plastic containers are arranged in one-to-one correspondence to apply voltage to the rows of plastic containers.

As shown in FIG. 1 , in this embodiment, the gas transmission component 130 includes a component movably arranged along the height direction of the inner plating frame 111 and connected with the gasification component 120 for pressing against the fixing component 110 to keep the plastic container in place. A gas transmission conduit 131 is enclosed in the cavity and extends into the plastic container to input the coating gas, and a gas transmission control valve 132 is arranged on the gas transmission conduit 131 for controlling the flow rate of the coating gas. Specifically, after the plastic container is fixed by the bottle-clamping fixed mold 112 and the bottle-clamping movable mold 114, the air delivery conduit 131 moves downward along the height direction of the inner plating frame 111 to extend from the bottle mouth of the plastic container to the plastic container. The bottom of the inner cavity is pressed against the fixed assembly 110 so that the plastic container is in the closed cavity. The air in the closed cavity where the plastic container is located is then extracted through the vacuum assembly 140 until the vacuum degree requirement is reached, and then the air delivery control is turned on. Valve 132, so that the coating gas is input into the bottom of the inner cavity of the plastic container through the gas transmission conduit 131, and the coating gas diffuses from bottom to top in the plastic container, so that the subsequently formed barrier coating is evenly distributed and has good barrier properties. After the inner plating is completed, The air delivery control valve 132 can be closed, and the air delivery conduit 131 can be moved upward along the height direction of the inner plating frame 111 to leave the plastic container, and the plastic container can then be taken out. Optionally, the gas delivery assembly 130 further includes a lifting mechanism for driving the gas delivery conduit 131 to rise and fall in the vertical direction. Optionally, the lifting mechanism is a driving cylinder or a driving oil cylinder or a combination of a driving motor and a pulley. It should be understood that the specific structures of the driving cylinder, the driving oil cylinder, the driving motor and the pulley are well known to those skilled in the art, and will not be described in detail here.

As shown in Figure 1, in this embodiment, the vacuum assembly 140 includes a first air extraction conduit 141 connected to the air delivery assembly 130 for communicating with the closed cavity where the plastic container is located, and is arranged on the first air extraction conduit 141. A first air extraction control valve 142 for controlling the air extraction flow and a first vacuum 143 connected to the first air extraction conduit 141 for extracting air from the closed cavity of the plastic container to form a vacuum environment. Specifically, after the bottle clamping movable mold 114 and the bottle clamping fixed mold 112 fix the plastic container, and the gasification assembly 120 seals the bottle mouth of the plastic container, it communicates with the gas delivery assembly 130 through the first air extraction conduit 141, and then opens the first The air pumping control valve 142 starts the first vacuum pump 143 to extract air from the closed cavity of the plastic container to form a vacuum environment. After the vacuum degree reaches the required level, the first air pumping control valve 142 is closed to ensure that the plastic container The degree of vacuum in a closed cavity.

As shown in FIG. 1 , in this embodiment, the vacuum assembly 140 further includes a second air extraction conduit 144 connected with the gasification assembly 120 , and a second air extraction conduit 144 arranged on the second air extraction conduit 144 for controlling the air extraction flow. The air extraction control valve 145 and the second vacuum evacuation device communicated with the second air extraction conduit 144 are used to extract the internal air of the gasification assembly 120 to form a vacuum environment. Specifically, after there is coating material in the gasification component 120, it is connected to the gasification component 120 through the second exhaust conduit 144, and the second exhaust control valve 145 is opened and the second vacuum is started to extract the gasification component. The internal air of 120 forms a vacuum environment. After the vacuum degree reaches the requirement, the second air extraction control valve 145 is closed to ensure the vacuum degree of the inner cavity of the gasification component 120, so that the gasification component 120 generates gas after vaporizing the coating material. The coating gas is free of impurities. Optionally, the first vacuum device 143 and the second vacuum device are the same vacuum device. It should be understood that the specific structure of the vacuum device is a well-known technology for those skilled in the art, and will not be described in detail here.

In this embodiment, the internal plating module 100 further includes a conveying assembly connected to the gasification assembly 120 for transporting coating materials into the gasification assembly 120 . Specifically, the feeding assembly includes a feeding conduit connected with the gasification assembly 120 and a feeding control valve arranged on the feeding conduit for controlling the flow of the coating material. By opening the feeding control valve, the coating material is transported through the feeding conduit. The coating material is transported to the gasification component 120. After the transportation volume of the coating material reaches the requirement, the feeding control valve is closed.

As shown in Figure 4, the integrated injection-blowing and plating machine for plastic containers in this embodiment includes the above-mentioned integrated injection-blowing and plating machine for plastic containers. The integrated injection-blowing and plating machine also includes an injection molding module 200 for injection molding a green body. The blowing module 300 performs a blowing operation on the green body to form a plastic container, and transfers the green body formed and outputted by the injection molding module 200 to the blowing module 300 and blows the plastic container formed and outputted by the blowing module 300 to the bottle blowing module 300 . The transfer mechanism 400 for transferring the inner plating module 100. Specifically, in the plastic container injection blowing and plating machine of the present invention, the injection molding module 200 injection molds the blank, and then the transfer mechanism 400 clamps the injection molded blank and transfers it to the next station; the transfer mechanism 400 transfers the blank The body is transferred to the bottle blowing module 300, and the bottle blowing module 300 blows the green body, and then the transfer mechanism 400 clamps the blown plastic container and transfers it to the next station; the transfer mechanism 400 blows the plastic container Transfer to the internal plating module 100, and the internal plating module 100 performs internal barrier coating on the plastic container to obtain a high-barrier plastic container and realize the assembly line production of high-barrier plastic containers, which greatly improves the production efficiency. The required temperature of the green body from the injection molding module 200 to the bottle blowing module 300 is comprehensively guaranteed by the distance between the injection molding module 200 and the bottle blowing module 300, the transfer speed of the transfer module, and the working environment temperature of the injection blowing and plating machine. Optionally, the injection molding machine divides the injection molding materials through the injection pipe and enters the material flow paths of multiple blank mold components respectively, thereby realizing the blank molding in the blank molding cavity of the blank mold components, achieving The injection molding machine simultaneously injection molds rows of embryonic bodies. Preferably, the number of blank mold assemblies is two groups. Optionally, the injection pipe itself has a thermal insulation function, and if necessary, a heating pipe clamp can be arranged outside the injection pipe. Optionally, the blank forming cavities in the blank mold assembly are arranged in a single row, and the respective blank forming cavities are arranged at intervals from each other. The number of the blank forming cavities in the single row is 3-20. Optionally, the blank molding cavities in the blank mold assembly are arranged in multiple rows, and the blank molding cavities are arranged at intervals from each other; preferably, the blank molding cavities in the blank mold assembly are arranged in two rows. It should be understood that, as shown in FIG. 4 , in this embodiment, the integrated injection-blowing and plating machine for plastic containers is of a linear type. In another embodiment, the integrated injection-blowing and plating machine for plastic containers may be of a rotary type.

As shown in Figure 4, in this embodiment, a green body preheating module 500 is provided between the injection molding module 200 and the bottle blowing module 300. The injection molding module 200, the green body preheating module 500 and the bottle blowing module 300 are arranged in a linear manner. cloth; the injection molding module 200 translates the green body output by injection molding through the transfer mechanism 400 to the green body preheating module 500 for preheating, and then translates it to the bottle blowing module 300 for bottle blowing. Due to the material, substrate thickness, size of the plastic container or other reasons, the green body after injection molding cannot be directly blown, so a preheating link needs to be added between injection molding and bottle blowing. The injection molding module 200, the body preheating module 500 and the blow molding module 300 are also arranged in a straight line, and the arrangement direction and spacing of the preheating cavities of the body preheating module 500 are consistent with the body molding of the injection molding module 200. The bottle blowing cavity of the bottle blowing module 300 and the transfer bottle clamp of the transfer mechanism 400 are matched, so that the transfer mechanism 400 can complete the transfer of materials between each work station through a simple reciprocating translation action; injection molding module 200 After injection molding, the green body is output, and the transfer mechanism 400 clamps the green body and translates it to the green body preheating module 500 for preheating, and then translates it to the bottle blowing module 300 for synchronous blowing, and outputs after the bottle blowing is completed; output It can be output directly downward through the bottle blowing module 300, or it can be translated out of the bottle blowing module 300 through the transfer mechanism 400 and then released for output. Optionally, a heating medium circulation channel is arranged in the green body preheating module 500, and the heating medium is passed through to achieve preheating of the green body; preheating with a flowing heating medium facilitates precise control of the preheating temperature.

As shown in Figure 5, the integrated injection-blowing, plating and filling-sealing machine for plastic containers in this embodiment includes the above-mentioned integrated injection-blowing and plating machine for plastic containers. The integrated injection-blowing, plating and filling-sealing machine also includes a machine for filling the contents into the plastic container. The filling module 600 and the sealing module 700 for sealing the bottle mouth of the plastic container, the transfer mechanism 400 is also used to transfer the plastic containers plated and output from the inner plating module 100 to the filling module 600 and fill the The plastic containers filled and outputted by the module 600 are transferred to the sealing module 700 . Specifically, in the plastic container injection blowing, plating and filling all-in-one machine of the present invention, the injection molding module 200 injection molds the embryo body and transfers the embryo body to the embryo body preheating module 500 through the transfer mechanism 400 for preheating the embryo body. The transfer mechanism 400 transfers the preheated embryo body to the bottle blowing module 300 for synchronous blowing of the embryo body, and then the transfer mechanism 400 transfers the blown plastic container to the inner plating module 100 for inner plating, and then the The transfer mechanism 400 transfers the plated plastic container to the filling module 600 for filling. Finally, the transfer mechanism 400 transfers the filled plastic container to the sealing module 700 for sealing the plastic container, and then the plastic container is output. The entire product is prepared to obtain a plastic container with high barrier properties. It should be understood that, as shown in FIG. 5 , in this embodiment, the integrated machine for injection blowing, plating and filling of plastic containers is a linear type. In another embodiment, the integrated machine for injection blowing, plating and filling of plastic containers may be of a rotary type.

As shown in Figure 6, the plastic bottle of this embodiment is manufactured by using the above-mentioned plastic container inner plating module. Specifically, by coating the inner wall with a barrier coating, the barrier properties are greatly improved, the gas is prevented from passing through, and the quality of the contents stored inside is guaranteed.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

An inner plating module for a plastic container, characterized in that it includes an inner plating module (100) used to form a barrier coating on the inner wall surface of the plastic container,

The inner plating module (100) includes a fixing component (110) for holding a plastic container, a gasification component (120) for receiving and vaporizing coating materials to generate coating gas, and a user interface connected to the gasification component (120). The gas delivery component (130) is used to press against the fixed component (110) so that the plastic container is in the closed cavity and extends into the plastic container to input the coating gas, and is used to evacuate the closed cavity where the plastic container is located. The vacuuming component (140) and the components arranged in the fixing component (110) are used to apply voltage outside the plastic container so that the coating gas in the plastic container is electrolyzed into plasma in a vacuum state and then adheres uniformly to the inner wall surface of the plastic container. A conductive component (150) on which a barrier coating is formed.
The plastic container inner plating mold group according to claim 1 is characterized in that the fixed component (110) includes an inner plating frame (111), a bottle clamping fixed mold (112) fixedly arranged on the inner plating frame (111) for supporting the plastic container, a driving mechanism (113) whose movable end is movably arranged on the inner plating frame (111) along the width direction of the inner plating frame (111), and a bottle clamping movable mold (114) fixedly arranged on the movable end of the driving mechanism (113) for cooperating with the bottle clamping fixed mold (112) to clamp the plastic container.
The plastic container inner plating module according to claim 2, characterized in that the side wall of the bottle clamping fixed mold (112) is recessed with a support groove for supporting the plastic container along the width direction of the inner plating frame (111). One or more supporting grooves are arranged at intervals along the length direction of the inner plating frame (111) on the bottle clamping fixed mold (112).
The plastic container inner plating module according to claim 3, characterized in that the side wall of the bottle clamping movable mold (114) is recessed along the width direction of the inner plating frame (111) for cooperating with the support groove to clamp the plastic. There are one or more clamping grooves on the container clamping movable mold (114) arranged at intervals along the length direction of the inner plating frame (111), and the clamping grooves and support grooves are arranged in one-to-one correspondence.
The plastic container inner plating module according to claim 2, characterized in that the conductive component (150) includes a first electrode (151) arranged in the bottle clamping movable mold (114), a first electrode (151) arranged in the bottle clamping fixed mold (112) ) and a conductive power supply electrically connected to the first electrode (151) and the second electrode (152) respectively.
The plastic container inner plating module according to claim 1, characterized in that the gas delivery assembly (130) includes a gas transmission assembly movably arranged along the height direction of the inner plating frame (111) and connected with the gasification assembly (120). A gas transmission conduit (131) used to press against the fixed component (110) to keep the plastic container in a closed cavity and extend into the plastic container to input coating gas, and a gas transmission conduit (131) arranged on the gas transmission conduit (131) for control Gas delivery control valve (132) for coating gas flow.
The plastic container inner plating module according to claim 1, characterized in that the vacuum assembly (140) includes a first air evacuation conduit connected to the air delivery assembly (130) for communicating with the closed cavity where the plastic container is located. (141), the first air extraction control valve (142) arranged on the first air extraction duct (141) for controlling the air extraction flow, and the first air extraction control valve (142) connected to the first air extraction duct (141) for extracting plastic containers. The first vacuum device (143) seals the air in the cavity to form a vacuum environment.
The plastic container inner plating module according to claim 7, characterized in that the vacuum assembly (140) further includes a second air extraction conduit (144) connected to the gasification assembly (120), and is arranged in the second air extraction conduit (144). The second air extraction control valve (145) on the conduit (144) for controlling the air extraction flow and the second air extraction control valve (145) connected to the second air extraction conduit (144) for extracting the internal air of the gasification assembly (120) to form a vacuum environment of the second vacuum.
An integrated injection-blowing and plating machine for plastic containers, which is characterized in that it includes the integrated injection-blowing and plating machine for plastic containers according to claim 1,

The injection-blow-plating machine also includes an injection molding module (200) for injection molding the green body, a bottle blowing module (300) for blowing the green body to form a plastic container, and an injection molding module (200). A transfer mechanism (400) that transfers the molded and output green body to the bottle blowing module (300) and transfers the plastic container formed and outputted by the bottle blowing module (300) to the inner plating module (100).
An integrated machine for injection blowing, plating and filling of plastic containers, which is characterized in that it includes the integrated machine for injection blowing and plating of plastic containers according to claim 9,

The injection blowing, plating and filling all-in-one machine also includes a filling module (600) for filling the contents into the plastic container and a sealing module (700) for sealing the bottle mouth of the plastic container.

The transfer mechanism (400) is also used to transfer the plastic containers plated and output from the inner plating module (100) to the filling module (600) and to transfer the plastic containers filled and output from the filling module (600) to the sealing module (700). ) transfer.