An aluminum-plastic bottle cap and its preparation device

Abstract

The present invention discloses an aluminum-plastic bottle cap and its preparation device, which includes an aluminum cap, a plastic cap, a rubber stopper and a sealing gasket. The preparation device includes a stamping machine, a first lifting conveyor, a cleaning machine, a second lifting conveyor, a first vision detector, a third lifting conveyor, a bottle cap assembly machine, a fifth lifting conveyor, a third vision detector, a sixth lifting conveyor and an injection molding machine. By setting up two production lines, one for preparing the aluminum cap and the other for preparing the plastic cap, the prepared aluminum caps and plastic caps are finally fed into the bottle cap assembly machine. The bottle cap assembly machine simultaneously receives the rubber stopper or the sealing gasket, and assembles the aluminum cap, the plastic cap, the rubber stopper or the sealing gasket to obtain the corresponding aluminum-plastic bottle cap, realizing fully automated intelligent manufacturing and improving the preparation efficiency of the aluminum-plastic bottle cap.

Description

Technical Field

[0001] The present invention relates to the technical field of bottle caps, and particularly to an aluminum-plastic bottle cap and a preparation device thereof. Background Art

[0002] The aluminum-plastic bottle cap is an important part of food and beverage packaging and is also the place where consumers first come into contact with the product. The aluminum cap has the function of maintaining the airtight performance of the contained product and also has the functions of anti-theft opening and safety. Therefore, it is widely used in bottled products. So the aluminum-plastic cap is an upstream industry for food, beverage, wine, chemical industry, and pharmaceutical industry and is a key product for bottle container packaging.

[0003] At present, after the aluminum-plastic bottle cap is opened, the aluminum cap and the plastic cap are not separated, which increases the subsequent waste treatment process. For example, the patent No. CN201822130398.7 discloses an easy-to-tear aluminum-plastic cap type vial, including a bottle body. The top of the bottle body is provided with a bottle mouth, and an aluminum-plastic seal is arranged at the top of the bottle mouth. A ring block is arranged at the edge of the bottle mouth. A rubber ring is sleeved on the outer side of the ring block, and an aluminum-plastic cap body is arranged on the outer side of the rubber ring. When opening the easy-to-tear aluminum-plastic cap type vial, by rotating the rotating ring, the tearing block inside the rotating ring starts from the placement groove and moves along one end of the tearing line, so as to ensure that both the inner and outer surfaces of the tearing block and the tearing line can be contacted, without worrying about too many adhesion areas of the tearing line, and the aluminum-plastic cap body and the aluminum-plastic seal can be well separated. At the same time, due to the extrusion of the tearing block, a part of the top of the aluminum-plastic cap body is embedded into the rubber ring, and the edge at the bottom of the aluminum-plastic seal is concave, and by hiding the sharp part, the safety hazard of the user is greatly reduced. After the aluminum-plastic bottle cap is opened in the above-mentioned patent example, the aluminum cap and the plastic cap are still integrated, which is not conducive to recycling. Summary of the Invention

[0004] In view of the above-mentioned disadvantages of the prior art, the purpose of the present invention is to provide an aluminum-plastic bottle cap and a preparation device thereof, so as to solve the problem that the aluminum cap and the plastic cap are still integrated after the aluminum-plastic cap is used, which is not conducive to post-treatment. At the same time, a preparation device for the aluminum-plastic bottle cap is provided, realizing the full-automatic preparation and production of the aluminum-plastic bottle cap, and greatly improving the production efficiency.

[0005] The technical solution of the present invention is as follows:

[0006] According to a first aspect of the present invention, there is provided an aluminum-plastic bottle cap, comprising an aluminum cap, a plastic cap, a rubber stopper and a sealing gasket. An easy-to-tear member is provided on the aluminum cap, and a through hole matching the plastic cap is provided on the easy-to-tear member. The lower end of the plastic cap is connected to the rubber stopper, the plastic cap is connected to the aluminum cap, and the rubber stopper passes through the through hole to seal the bottle mouth. The lower end of the aluminum cap is connected to the sealing gasket. The easy-to-tear member includes a first easy-to-tear block and a second easy-to-tear block which are integrally connected. The first easy-to-tear block is provided on the side surface of the aluminum cap, and the second easy-to-tear block is provided on the upper end surface of the aluminum cap.

[0007] Further, the sealing gasket is a rubber gasket.

[0008] Further, an opening mark corresponding to the easy-to-tear member is provided on the upper end surface of the plastic cap.

[0009] Further, the opening mark is a label for indicating the tearing direction or a groove formed on the upper end surface of the plastic cap.

[0010] Further, an easy-to-tear opening is provided on the side surface of the aluminum cap.

[0011] According to a second aspect of the present invention, there is provided a preparation device for an aluminum-plastic bottle cap. The aluminum-plastic bottle cap comprises an aluminum cap, a plastic cap, a rubber stopper and a sealing gasket. An easy-to-tear member is provided on the aluminum cap, and a through hole matching the plastic cap is provided on the easy-to-tear member. The lower end of the plastic cap is connected to the rubber stopper, the plastic cap is connected to the aluminum cap, and the rubber stopper passes through the through hole to seal the bottle mouth. The lower end of the aluminum cap is connected to the sealing gasket;

[0012] The preparation device includes a stamping machine, a first lifting conveyor, a cleaning machine, a second lifting conveyor, a first vision detector, a third lifting conveyor, a bottle cap assembling machine, a fifth lifting conveyor, a third vision detector, a sixth lifting conveyor, and an injection molding machine;

[0013] The stamping machine is used to prepare the aluminum cap according to a preset aluminum cap structural size. The prepared aluminum cap is conveyed to the cleaning machine through the first lifting conveyor. The cleaning machine is used to clean the aluminum cap, and after cleaning, it is lifted to the first vision detector through the second lifting conveyor. The first vision detector is used to scan the shape of the aluminum cap and compare it with a preset first qualified shape, and reject the aluminum caps that do not match the preset first qualified shape. The qualified aluminum caps coming out of the first vision detector are sent into the bottle cap assembling machine through the third lifting conveyor;

[0014] The injection molding machine is used to prepare the plastic cap according to the preset structural dimensions of the plastic cap. The prepared plastic cap is sent to the third vision inspection device through the sixth lifting conveyor. The third vision inspection device is used to scan the shape of the plastic cap and compare it with the preset second qualified shape, and reject the plastic caps that do not match the preset second qualified shape. The qualified plastic caps coming out of the third vision inspection device are sent to the bottle cap assembly machine through the fifth lifting conveyor;

[0015] The bottle cap assembly machine is used to receive the aluminum cap, plastic cap, rubber stopper and gasket, and assemble the aluminum cap, plastic cap, rubber stopper and gasket to obtain the aluminum-plastic bottle cap.

[0016] Further, the preparation device further includes a fourth lifting conveyor, a second vision inspection device and an automatic packing machine; the aluminum-plastic bottle caps prepared by the bottle cap assembly machine are sent to the second vision inspection device through the fourth lifting conveyor. The second vision inspection device is used to scan the shape of the aluminum-plastic bottle cap and compare it with the preset third qualified shape, and reject the aluminum-plastic bottle caps that do not match the preset third qualified shape. The qualified aluminum-plastic bottle caps coming out of the second vision inspection device enter the automatic packing machine for packing to obtain the final product.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] For the aluminum-plastic bottle cap according to the present invention, when in use, the easy-to-tear piece is torn off to pull the plastic cap from the bottle body, realizing the separation of the aluminum cap and the plastic cap. And after tearing, the bottle mouth is exposed and can be directly drunk without removing the gasket when drinking. Therefore, the present invention not only does not need to rely on other opening methods, has simple operation, does not need to be equipped with a straw, saves the packaging cost, but also can separate the aluminum cap and the plastic cap when opening the bottle, which is beneficial to subsequent recycling and reduces the recycling cost of the bottle cap, and has good economic benefits.

[0019] For the preparation device of the aluminum-plastic bottle cap according to the present invention, the automatic production of the aluminum cap and the plastic cap is respectively realized through two production lines. Visual inspection is added during the production process to ensure the product quality. The aluminum caps and plastic caps produced by the two production lines are correspondingly sent to the bottle cap assembly machine. The bottle cap assembly machine then cooperates with the prepared rubber stopper and gasket to correspondingly assemble the aluminum cap, plastic cap, rubber stopper and gasket into the aluminum-plastic bottle cap, which is a complete automated production line, greatly reducing the labor input and improving the product efficiency and product quality. Description of the Drawings

[0020] In the accompanying drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar components in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar components. The drawings generally illustrate various embodiments by way of example and not limitation, and are used in conjunction with the description and the claims to explain the disclosed embodiments. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be an exhaustive or exclusive embodiment of the device or method.

[0021] Figure 1 A perspective view of an aluminum-plastic bottle cap according to Embodiment 1 of the present invention is shown.

[0022] Figure 2 A perspective view of the aluminum cap of an aluminum-plastic bottle cap according to Embodiment 1 of the present invention is shown.

[0023] Figure 3 A top view of the plastic cap of an aluminum-plastic bottle cap according to Embodiment 1 of the present invention is shown.

[0024] Figure 4 A top view of the gasket of an aluminum-plastic bottle cap according to Embodiment 1 of the present invention is shown.

[0025] Figure 5 A schematic structural view of a preparation device for an aluminum-plastic bottle cap according to Embodiment 2 of the present invention is shown.

[0026] In the figure, 1 is the aluminum cap, 2 is the plastic cap, 3 is the rubber stopper, 4 is the gasket, 5 is the tearable member, 501 is the first tearable block, 502 is the second tearable block, 6 is the through hole, 7 is the opening mark, 8 is the tearable opening, 100 is the punching machine, 200 is the first lifting conveyor, 300 is the cleaning machine, 400 is the second lifting conveyor, 500 is the first vision detector, 600 is the third lifting conveyor, 700 is the bottle cap assembly machine, 800 is the fourth lifting conveyor, 900 is the second vision detector, 1000 is the automatic packing machine, 1100 is the fifth lifting conveyor, 1200 is the third vision detector, 1300 is the sixth lifting conveyor, 1400 is the injection molding machine. Detailed Embodiments

[0027] The following listed partial embodiments are only for better explaining the present invention, but the content of the present invention is not limited to the applied embodiments. Therefore, those skilled in the art still fall within the protection scope of the present invention when making non-essential improvements and adjustments to the implementation schemes according to the above invention content and applying them to other embodiments.

[0028] Now, the present invention will be further described with reference to the accompanying drawings of the specification.

[0029] Embodiment 1: Aluminum-plastic bottle cap

[0030] An embodiment of the present invention provides an aluminum-plastic bottle cap. As Figures 1-4 shown, the aluminum-plastic bottle cap includes an aluminum cap 1, a plastic cap 2, a rubber stopper 3, and a sealing gasket 4. An easy-to-tear member 5 is provided on the aluminum cap 1, and a through hole 6 matching the plastic cap 2 is provided on the easy-to-tear member 5. The lower end of the plastic cap 2 is connected to the rubber stopper 3. The plastic cap 2 is connected to the aluminum cap 1, and the rubber stopper 3 passes through the through hole 6 to close the bottle mouth. The lower end of the aluminum cap 1 is connected to the sealing gasket 4.

[0031] It should be noted that the easy-to-tear member 5 described herein can be a member that can be detached from the aluminum cap 1 formed by an indentation line on the aluminum cap 1. The sealing gasket 4 is used to ensure the sealing performance between the aluminum-plastic bottle cap and the bottle mouth. The connection method between the plastic cap 2 and the aluminum cap 1 is by connecting with a plastic connector, or by using a hot pressing method to connect the plastic cap 2 and the aluminum cap 1, or by using bonding and other forms. This embodiment does not make specific limitations on this.

[0032] When the aluminum-plastic bottle cap is assembled on the corresponding bottle body, when it is necessary to open the aluminum-plastic bottle cap, by tearing the easy-to-tear member 5, the plastic cap 2 and the aluminum cap 1 are separated. When separating, the rubber stopper 3 connected to the plastic cap 2 will be detached from the bottle mouth, so that the liquid in the bottle can be directly used. When using the aluminum-plastic bottle cap described in this embodiment to assemble the bottle body, there is no need to be equipped with a straw, which saves packaging materials. And, after opening the bottle cap, the easy-to-tear member 5 and the plastic cap 2 are separated and stored. At this time, the plastic cap 2 and the aluminum cap 1 have been separated, and the aluminum cap 1 and the easy-to-tear member 5 can be stored correspondingly together (both are made of aluminum material). Among them, after the liquid in the bottle is used up, the aluminum cap 1 can be easily removed from the bottle body through the notch left on the aluminum cap 1 after the easy-to-tear member 5 is torn. In this way, the aluminum cap, the plastic cap, the sealing gasket, and the bottle body can be evenly separated, realizing the simple separation of the bottle cap waste, reducing the recycling cost of the bottle cap, and having good economic benefits.

[0033] In some embodiments, as Figure 4 shown, the sealing gasket 4 is a rubber gasket.

[0034] In some embodiments, as Figure 1 and Figure 2 shown, the easy-to-tear member 5 includes a first easy-to-tear block 501 and a second easy-to-tear block 502 connected integrally. The first easy-to-tear block 501 is arranged on the side surface of the aluminum cap 1, and the second easy-to-tear block 502 is arranged on the upper end surface of the aluminum cap 2. In specific implementation, the user opens the bottle mouth and separates the aluminum cap and the plastic cap through the first easy-to-tear block 501.

[0035] In some embodiments, as Figure 4As shown, an opening mark 7 corresponding to the tearable member is provided on the upper end surface of the plastic cap 2.

[0036] Only by way of example, the opening mark 7 is a label for indicating the tearing direction or a groove formed on the upper end surface of the plastic cap. For example, it can be in the shape of an arrow as Figure 3 shown, which is used to assist in prompting the user of the opening direction.

[0037] In some embodiments, as Figure 2 shown, a tearable opening 8 is provided on the upper side of the aluminum cap 1.

[0038] Embodiment 2: Preparation device for aluminum-plastic bottle cap

[0039] The embodiment of the present invention provides a preparation device for an aluminum-plastic bottle cap. The structure of the aluminum-plastic bottle cap is the same as that described in Embodiment 1 and will not be described in detail here.

[0040] As Figure 5 shown, the preparation device includes a stamping machine 100, a first lifting conveyor 200, a cleaning machine 300, a second lifting conveyor 400, a first vision inspection device 500, a third lifting conveyor 600, a bottle cap assembly machine 700, a fifth lifting conveyor 1100, a third vision inspection device 1200, a sixth lifting conveyor 1300, and an injection molding machine 1400. In this embodiment, by setting two production lines, namely an aluminum cap production line and a plastic cap production line, both of which include preparation and quality testing.

[0041] The working principle of the aluminum cap production line is as follows: The stamping machine 100 is used to prepare the aluminum cap according to the preset aluminum cap structure dimensions. The prepared aluminum cap is conveyed to the cleaning machine 300 by the first lifting conveyor 200. The cleaning machine 300 is used to clean the aluminum cap. After cleaning, it is lifted to the first vision inspection device 500 by the second lifting conveyor 400. The first vision inspection device 500 is used to scan the shape of the aluminum cap and compare it with a preset first qualified shape, and the aluminum caps that do not match the preset first qualified shape are removed. The qualified aluminum caps coming out of the first vision inspection device 500 are sent to the bottle cap assembly machine 700 through the third lifting conveyor 600.

[0042] The working principle of the plastic cap production line is as follows: The injection molding machine 1400 is used to prepare the plastic cap according to the preset structural dimensions of the plastic cap. The prepared plastic cap is sent to the third vision inspection machine 1200 through the sixth lifting conveyor 1300. The third vision inspection machine 1200 is used to scan the shape of the plastic cap and compare it with the preset second qualified shape, and reject the plastic caps that do not match the preset second qualified shape. The qualified plastic caps coming out of the third vision inspection machine 1200 are sent to the bottle cap assembly machine 700 through the fifth lifting conveyor 1100.

[0043] The qualified aluminum caps and qualified plastic caps prepared by the two production lines are sent to the bottle cap assembly machine 700. The bottle cap assembly machine 700 is used to receive the aluminum caps, plastic caps, rubber stoppers and gaskets, and assemble the aluminum caps, plastic caps, rubber stoppers and gaskets to obtain the aluminum-plastic bottle caps. Among them, the rubber stoppers and gaskets are finished products for use.

[0044] In some embodiments, the aluminum-plastic bottle caps coming out of the bottle cap assembly machine 700 are inspected and packaged. Specifically, as Figure 5 shown, the preparation device further includes a fourth lifting conveyor 800, a second vision inspection machine 900 and an automatic packing machine 1000. The aluminum-plastic bottle caps prepared by the bottle cap assembly machine 700 are sent to the second vision inspection machine 900 through the fourth lifting conveyor 800. The second vision inspection machine 900 is used to scan the shape of the aluminum-plastic bottle cap and compare it with the preset third qualified shape, and reject the aluminum-plastic bottle caps that do not match the preset third qualified shape. The qualified aluminum-plastic bottle caps coming out of the second vision inspection machine 900 enter the automatic packing machine 1000 for packing to obtain the final product. The final product is the product after packaging the qualified aluminum-plastic bottle caps.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. An aluminum-plastic bottle cap, characterized in that, It includes an aluminum cap, a plastic cap, a rubber stopper and a gasket. An easy-to-tear part is provided on the aluminum cap. A through hole matching the plastic cap is provided on the easy-to-tear part. The lower end of the plastic cap is connected to the rubber stopper. The plastic cap is connected to the aluminum cap, and the rubber stopper passes through the through hole to close the bottle mouth. The lower end of the aluminum cap is connected to the gasket. The easy-to-tear part includes a first easy-to-tear block and a second easy-to-tear block connected integrally. The first easy-to-tear block is provided on the side surface of the aluminum cap, and the second easy-to-tear block is provided on the upper end surface of the aluminum cap; An opening mark corresponding to the easy-to-tear part is provided on the upper end surface of the plastic cap; An easy-to-tear opening is provided on the upper side surface of the aluminum cap.

2. The aluminum-plastic bottle cap according to claim 1, characterized in that, The gasket is a rubber gasket.

3. The aluminum-plastic bottle cap according to claim 1, characterized in that, The opening mark is a label for indicating the tearing direction or a groove opened on the upper end surface of the plastic cap.

4. A preparation device for an aluminum-plastic bottle cap, characterized in that, The aluminum-plastic bottle cap includes an aluminum cap, a plastic cap, a rubber stopper and a gasket. An easy-to-tear part is provided on the aluminum cap. A through hole matching the plastic cap is provided on the easy-to-tear part. The lower end of the plastic cap is connected to the rubber stopper. The plastic cap is connected to the aluminum cap, and the rubber stopper passes through the through hole to close the bottle mouth. The lower end of the aluminum cap is connected to the gasket; The preparation device includes a stamping machine, a first lifting conveyor, a cleaning machine, a second lifting conveyor, a first vision detector, a third lifting conveyor, a bottle cap assembly machine, a fifth lifting conveyor, a third vision detector, a sixth lifting conveyor, and an injection molding machine; The stamping machine is used to prepare the aluminum cap according to the preset aluminum cap structure size. The prepared aluminum cap is conveyed to the cleaning machine by the first lifting conveyor. The cleaning machine is used to clean the aluminum cap. After cleaning, it is lifted to the first vision detector by the second lifting conveyor. The first vision detector is used to scan the shape of the aluminum cap and compare it with the preset first qualified shape, and reject the aluminum caps that do not match the preset first qualified shape. The qualified aluminum caps coming out of the first vision detector are sent to the bottle cap assembly machine through the third lifting conveyor; The injection molding machine is used to prepare the plastic cap according to the preset plastic cap structure size. The prepared plastic cap is sent to the third vision detector through the sixth lifting conveyor. The third vision detector is used to scan the shape of the plastic cap and compare it with the preset second qualified shape, and reject the plastic caps that do not match the preset second qualified shape. The qualified plastic caps coming out of the third vision detector are sent to the bottle cap assembly machine through the fifth lifting conveyor; The bottle cap assembly machine is used to receive the aluminum cap, the plastic cap, the rubber stopper and the gasket, and assemble the aluminum cap, the plastic cap, the rubber stopper and the gasket to obtain the aluminum-plastic bottle cap.

5. The preparation device of the aluminum-plastic bottle cap according to claim 4, wherein, The preparation device further includes a fourth elevating conveyor, a second vision detector, and an automatic packing machine; the aluminum-plastic bottle caps prepared by the bottle cap assembly machine are sent to the second vision detector through the fourth elevating conveyor, and the second vision detector is used to scan the shape of the aluminum-plastic bottle caps, compare them with a preset third qualified shape, and reject the aluminum-plastic bottle caps that do not match the preset third qualified shape. The qualified aluminum-plastic bottle caps coming out of the second vision detector enter the automatic packing machine for packing to obtain the final product.

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