Anti-pull-off anti-fake bottle cap assembling technology
By employing dual-material injection molding technology and anti-pull-out component design, the problem of easy pull-out of liquor bottle caps under vertical tension and high temperature was solved, achieving significant anti-counterfeiting effect and irreversible anti-counterfeiting function, while reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- WENZHOU ZHONGLE PACKAGING CO LTD
- Filing Date
- 2024-11-04
- Publication Date
- 2026-05-08
AI Technical Summary
Existing liquor bottle caps are easily pulled off under vertical tension, have poor high-temperature resistance, incomplete anti-counterfeiting structures, are easily restored, have high production costs, and their anti-counterfeiting effect is not significant.
The inner sleeve is manufactured using dual-material injection molding technology. The inner sleeve is divided into the bottle mouth and the bottle neck. It uses food-grade plastic and high-temperature resistant, high-strength plastic. Combined with anti-pull-out parts and easy-break parts, it forms an integrated molding structure to enhance the anti-counterfeiting effect. Anti-pull-out parts are set at the connection between the upper cover and the lower sleeve to increase the vertical anti-counterfeiting function.
The bottle cap's resistance to high temperatures and physical external forces has been improved. The anti-counterfeiting structure is irreversible after being damaged, enhancing the anti-counterfeiting effect, reducing production costs, and improving production efficiency.
Smart Images

Figure CN121990262A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of bottle cap technology, and in particular to an assembly process for anti-pull-out and anti-counterfeiting bottle caps. Background Technology
[0002] The common liquor bottle caps on the market consist of an inner stopper, an inner sleeve (also called a bottle mouth, pourer, connecting sleeve, etc., hereinafter collectively referred to as the inner sleeve), an inner cap, an upper cap (including a top piece and an upper cap, the two parts are combined by welding or strong pressure, so hereinafter collectively referred to as the upper cap), and a lower sleeve. These five parts are combined to form a bottle cap, which is the basic product of the bottle cap industry.
[0003] The existing anti-counterfeiting technology for liquor bottle caps has several flaws, mainly in the following aspects:
[0004] 1. Under a certain vertical physical force, the bottle cap will be pulled off the bottle or the top cap will be pulled off the inner cap.
[0005] 2. When boiled in water or steamed at high temperatures, the bottle cap will detach from the bottle and can be easily reattached.
[0006] 3. Currently, the anti-counterfeiting technology of liquor bottle caps on the market is based on horizontal unscrewing, which causes the anti-counterfeiting teeth, anti-counterfeiting flaps, bursting rings, connecting pieces and other anti-counterfeiting components to break and be destroyed. This structural design is based on horizontal unscrewing force and fails to consider vertical force factors, resulting in incomplete anti-counterfeiting.
[0007] 4. Limitations in the use of raw materials: The inner sleeves that come into contact with the liquor are mostly made of PET material, which is prone to deformation at around 75 degrees Celsius. This makes ordinary bottle caps not heat-resistant. The material is not strong or tough enough, which makes it easy for the bottle cap to be pulled off by physical force after it is put on the bottle. Under a certain amount of pulling force, the bottle cap will be pulled off the bottle, which greatly reduces the anti-counterfeiting properties of the bottle cap.
[0008] 5. Currently, there are also methods on the market that use an inner sleeve with an embedded metal ring, but the injection molding cost is high, and the injection mold is easily damaged during production. Because the metal ring has a small deformation, it is easy to cause the glass bottle mouth to crack when it is pressed with the bottle. This poses sealing and safety hazards during the transportation and storage of liquor and in food and beverage safety.
[0009] 6. Currently available bottle caps, even after the anti-counterfeiting points are damaged, do not show obvious visual damage to the overall appearance. The damage marks are not obvious, and after simple repair and repackaging, they are not easily identified by consumers.
[0010] 7. Currently, the assembly method for baijiu bottle caps is mostly to assemble the inner sleeve, inner cap, and inner stopper, press them into the lower sleeve, and then press the upper cap onto the inner cap to form a complete bottle cap. Summary of the Invention
[0011] To address the shortcomings of existing technologies, the present invention aims to provide an assembly process for anti-removal and anti-counterfeiting bottle caps.
[0012] To achieve the above objectives, the technical solution adopted by the present invention is: an anti-pull-out anti-counterfeiting bottle cap assembly process, comprising: an inner plug, an inner sleeve, an inner cap, an upper cap, and a lower sleeve. An anti-pull-out component is provided between the upper cap and the lower sleeve, and the upper cap is engaged with the lower sleeve via the anti-pull-out component. The inner sleeve is an integrally molded structure formed by two-color / two-material injection molding, including a bottle mouth made of food-grade plastic and a bottle neck made of high-temperature resistant, high-strength plastic. The bottle mouth has a cap-like structure, with a circular bottom and a liquid outlet at the top. The bottle neck has a cylindrical structure, and a connection is made between the bottle mouth and the bottle neck. The device includes several breakable parts, with the bottle neck engaging with the bottle opening via these breakable parts. The outer surface of the bottle opening of the inner sleeve is threaded, and the inner wall of the inner cover is also threaded, with the bottle opening of the inner sleeve threadedly connected to the inner cover. The inner cover is located within the inner cavity of the upper cover, with a first step on its outer surface. Correspondingly, the inner wall of the upper cover has a first locking block that engages with the first step. The bottle neck of the inner sleeve is located within the lower sleeve, with a second step on its outer surface. Correspondingly, the inner wall of the lower sleeve has a second locking block that engages with the second step. The inner plug is located within the inner sleeve and is inserted into the bottle opening of the inner sleeve.
[0013] Includes the following steps:
[0014] Step 1: First, insert the inner plug into the inner sleeve, then put the inner cover on the inner sleeve. The inner plug, inner sleeve and inner cover are assembled into the lower part as a whole.
[0015] Step 2: First, attach the lower edge of the upper cover to the upper edge of the lower sleeve. Then, align the first groove on the lower edge of the upper cover with the anti-pull-out component on the upper edge of the lower sleeve. Move the upper cover or lower sleeve horizontally so that the protrusion in the first groove inserts into the slot of the anti-pull-out component. The upper cover and lower sleeve are then assembled into a single upper part.
[0016] Step 3: Press the upper part of the joint vertically downward into the lower part of the joint to form an anti-counterfeiting bottle cap.
[0017] Preferably, the outer surface of the inner cover is provided with a first anti-slip protrusion, and correspondingly, the inner wall of the upper cover is provided with a second anti-slip protrusion that cooperates with the first anti-slip protrusion; the outer surface of the bottleneck is provided with a third anti-slip protrusion, and correspondingly, the inner wall of the lower sleeve is provided with a fourth anti-slip protrusion that cooperates with the third anti-slip protrusion.
[0018] Preferably, the anti-pull-out component includes a connecting piece and several anti-counterfeiting toothed strips on one side of the connecting piece. The anti-pull-out component is located on the upper edge of the lower sleeve, and the anti-counterfeiting toothed strips are connected to the upper edge of the lower sleeve. Correspondingly, the lower edge of the upper cover is provided with a first slot for accommodating the anti-pull-out component. The first slot is a blind hole, and a protrusion is provided on one side of the first slot. The outward protrusion of the protrusion is greater than the thickness of the connecting piece and the anti-counterfeiting toothed strips. Correspondingly, there are two anti-counterfeiting toothed strips, and the two anti-counterfeiting toothed strips, together with the upper edge of the lower sleeve and one side of the connecting piece, form a locking slot. When the anti-pull-out component is inserted into the first slot, the protrusion engages with the locking slot.
[0019] Preferably, the breakable component is located at the bottom of the bottle neck. The breakable component includes a first buckle and a second buckle. The top of the bottle neck is provided with a first groove that cooperates with the first buckle, and the top of the bottle neck is provided with a second groove that cooperates with the second buckle.
[0020] Preferably, there are two first buckles, which are symmetrically arranged along the axis of the bottle mouth, and two second buckles, which are symmetrically arranged along the axis of the bottle mouth.
[0021] Preferably, the first buckle includes three spaced-apart first protrusions, and correspondingly, the first slot includes three first through holes that can accommodate the first protrusions. When the first buckle is engaged with the first slot, the three first protrusions are respectively located in the three first through holes. The second buckle includes a second protrusion, and correspondingly, the second slot includes a second through hole that can accommodate the second protrusion. When the second buckle is engaged with the second slot, the second protrusion is located in the second through hole.
[0022] Preferably, the breakable component is located at the bottom of the bottle neck, the breakable component includes a third buckle, the top of the bottle neck is provided with a third slot that cooperates with the third buckle, the bottom of the bottle neck is provided with an insert block, and correspondingly, the top of the bottle neck is provided with a slot.
[0023] Preferably, there are two third buckles, which are symmetrically arranged along the axis of the bottle mouth, and there are two inserts, which are symmetrically arranged along the axis of the bottle mouth.
[0024] Preferably, the third buckle includes a third protrusion, and correspondingly, the third slot includes a third through hole that can accommodate the third protrusion. When the third buckle is engaged with the third slot, the third protrusion is located in the third through hole.
[0025] Preferably, the order in which the inner plug and inner cover are installed on the inner sleeve in step one can be interchanged.
[0026] The beneficial effects of this invention are as follows: By utilizing the wall thickness of the upper cover at the connection between the upper cover and the lower sleeve, a first groove slightly larger than the anti-pull-out component of the lower sleeve is opened on the outer side of the upper cover. A protrusion is provided at the first groove of the upper cover. The lower sleeve has a locking slot formed by a connecting piece, an anti-counterfeiting toothed strip, and the upper edge of the lower sleeve. The anti-pull-out component of the lower sleeve is inside the first groove of the upper cover, and the protrusion of the upper cover is fastened into the locking slot of the anti-pull-out component of the lower sleeve. This anti-counterfeiting design will destroy the anti-pull-out component of the lower sleeve regardless of the horizontal twisting opening force, the vertical physical pull-out force, or the high temperature boiling pull-out, thus forming an easily identifiable anti-counterfeiting structure that cannot be restored after being destroyed.
[0027] The inner cap sleeve adopts a dual-material injection molding process. Through a dual-material mold structure design, the inner sleeve is divided into a bottle mouth section and a bottle neck section, which are injection molded using two different raw materials. According to the food hygiene standards for liquor bottle caps and the requirements for high-temperature water boiling resistance, anti-pull-out, and anti-counterfeiting functions, the bottle mouth section, which comes into contact with the liquor, is made of food-grade PET raw material in the upper part, while the bottle neck section, which does not come into contact with the liquor, is made of high-temperature resistant and high-strength materials, such as PBT + glass fiber, or nylon + glass fiber, etc. (not limited to the above materials). Through the above settings, it is ensured that the inner cap sleeve meets the requirements of food-grade hygiene conditions, and the deformation resistance of the bottle neck section is enhanced, ensuring that it will not be easily pulled off after being fitted with the bottle mouth. This achieves the anti-pull-out and anti-counterfeiting functions, greatly enhancing the requirements for high-temperature resistance and physical external force anti-counterfeiting.
[0028] The inner sleeve is a one-piece molded structure made of two materials through injection molding. It includes a bottle mouth made of food-grade plastic and a bottle neck made of high-temperature resistant and high-strength plastic. The bottle mouth and bottle neck are interlocked and injection molded together to ensure the functionality of the inner sleeve in terms of bottle cap assembly, opening, and tight fit with the bottle mouth. It also meets the requirements of product production, filling, transportation, and storage. Furthermore, it ensures that when the bottle cap is pulled off by external force, it will break first at the joint between the upper and lower parts of the two-material injection molded inner sleeve, splitting the inner sleeve into two parts. This creates a clearly identifiable and irreversible structure, thus achieving a new type of anti-counterfeiting feature for the bottle cap.
[0029] The inner sleeve of the bottle cap adopts dual-material injection molding technology, which is conducive to the rapid injection molding of the product on the injection molding machine, and the inner sleeve is still a whole, reducing the assembly cost of subsequent processes and improving production efficiency.
[0030] This solution addresses the critical flaw of existing bottle caps, which can be easily removed from the bottle opening or the top cap from the inner cap by forcefully pulling with tools or boiling in hot water, without damaging the anti-counterfeiting components and making them difficult to identify. At the same time, it also solves the problem of the QR code reward red envelope inside the bottle cap being read by abnormal consumers.
[0031] In addition to the existing anti-counterfeiting structures, a new anti-counterfeiting structure against vertical pull-out force has been added, filling the structural anti-counterfeiting gap of liquor bottle caps under vertical pull-out force. This anti-counterfeiting cap design ensures that both the original horizontal twisting and the newly added vertical pull-out will damage the anti-counterfeiting components, creating an easily identifiable anti-counterfeiting function.
[0032] In addition to the existing anti-counterfeiting structures, a new anti-counterfeiting structure resistant to high-temperature boiling has been added, filling the structural anti-counterfeiting gap in liquor bottle caps under high-temperature boiling conditions. This anti-counterfeiting bottle cap design will destroy the anti-counterfeiting components under high-temperature boiling conditions, creating an easily identifiable anti-counterfeiting function.
[0033] In terms of structural anti-counterfeiting methods for bottle caps, it fills the gap in anti-counterfeiting measures for bottle caps under vertical pull-out force and in anti-pull-out measures under high-temperature boiling conditions. In terms of injection molding methods and packaging processes for bottle caps, it fills the industry gap in the application of dual-material, dual-color injection molding for bottle caps.
[0034] It greatly enhances the anti-counterfeiting function of bottle cap products, truly achieving the characteristics of irreversible damage to the cap after malicious destruction and easy identification after damage. It can prevent malicious force and high-temperature boiling to remove the cap, malicious claims, and counterfeiting incidents from occurring in the market.
[0035] This significantly enhances the bottle cap's adaptability to vertical pull-out forces, ensuring its anti-counterfeiting properties even under boiling water and high-temperature conditions, preventing malicious high-temperature pull-out, and thus strengthening the product's anti-counterfeiting function. Compared to other split inner sleeves or inlaid metal ring anti-pull-out methods, it reduces production costs, simplifies production processes, and improves production efficiency. Attached Figure Description
[0036] Figure 1 This is a schematic diagram of the structure of the present invention;
[0037] Figure 2 This is a cross-sectional view of the present invention;
[0038] Figure 3 This is an exploded view of the structure of the present invention;
[0039] Figure 4 This is a structural diagram of the upper cover and lower sleeve;
[0040] Figure 5 This is an exploded view of the upper cover and lower sleeve.
[0041] Figure 6 This is one of the structural schematic diagrams of the inner sleeve;
[0042] Figure 7 This is one of the exploded views of the inner casing;
[0043] Figure 8This is the second schematic diagram of the inner sleeve structure;
[0044] Figure 9 This is the second exploded view of the inner casing;
[0045] Figure 10 This is a schematic diagram of the inner cover structure;
[0046] Figure 11 This is a flowchart illustrating the assembly process of anti-counterfeiting bottle caps. Detailed Implementation
[0047] like Figures 1-10 As shown, an anti-pull-out anti-counterfeiting bottle cap assembly process includes: an inner plug 1, an inner sleeve 2, an inner cap 3, an upper cap 4, and a lower sleeve 5. An anti-pull-out component 6 is provided between the upper cap 4 and the lower sleeve 5, and the upper cap 4 is engaged with the lower sleeve 5 through the anti-pull-out component 6. The inner sleeve 2 is an integrally molded structure made by two-color / two-material injection molding, including a bottle mouth 21 made of food-grade plastic and a bottle neck 22 made of high-temperature resistant and high-strength plastic. The bottle mouth 21 has a cap-like structure, and the bottom of the bottle mouth 21 is annular. The top of the bottle mouth 21 has a liquid outlet 7. The bottle neck 22 has a cylindrical structure. Several breakable parts 8 are provided between the bottle mouth 21 and the bottle neck 22. 1. The bottle neck 22 is engaged with the easily breakable part 8; the outer surface of the bottle mouth 21 of the inner sleeve 2 is threaded, and the inner cavity wall of the inner cover 3 is also threaded, and the bottle mouth 21 of the inner sleeve 2 is threadedly connected to the inner cover 3; the inner cover 3 is located in the inner cavity of the upper cover 4, and the outer surface of the inner cover 3 is provided with a first step 9, and correspondingly, the inner cavity wall of the upper cover 4 is provided with a first locking block 10 that engages with the first step 9; the bottle neck 22 of the inner sleeve 2 is located in the lower sleeve 5, and the outer surface of the bottle neck 22 is provided with a second step 11, and correspondingly, the inner wall of the lower sleeve 5 is provided with a second locking block 12 that engages with the second step 11; the inner plug 1 is located in the inner sleeve 2 and is inserted into the bottle mouth 21 of the inner sleeve 2.
[0048] The outer surface of the inner cover 3 is provided with a first anti-slip protrusion 13, and correspondingly, the inner wall of the upper cover 4 is provided with a second anti-slip protrusion 14 that cooperates with the first anti-slip protrusion 13; the outer surface of the bottleneck portion 22 is provided with a third anti-slip protrusion 15, and correspondingly, the inner wall of the lower sleeve 5 is provided with a fourth anti-slip protrusion 16 that cooperates with the third anti-slip protrusion 15.
[0049] The anti-pull-out component 6 includes a connecting piece 61 and several anti-counterfeiting toothed strips 62 disposed on one side of the connecting piece 61. The anti-pull-out component 6 is disposed on the upper edge of the lower sleeve 5, and the anti-counterfeiting toothed strips 62 are connected to the upper edge of the lower sleeve 5. Correspondingly, the lower edge of the upper cover 4 is provided with a first slot 17 for accommodating the anti-pull-out component 6. The first slot 17 is a blind hole, and a protrusion 18 is provided on one side of the first slot 17. The outward protrusion length of the protrusion 18 is greater than the thickness of the connecting piece 61 and the anti-counterfeiting toothed strips 62. Correspondingly, there are two anti-counterfeiting toothed strips 62, and the two anti-counterfeiting toothed strips 62, together with the upper edge of the lower sleeve 5 and one side of the connecting piece 61, form a latch 19. When the anti-pull-out component 6 is inserted into the first slot 17, the protrusion 18 and the latch 19 are engaged.
[0050] In the above structure, by utilizing the wall thickness of the upper cover 4 at the connection between the upper cover 4 and the lower sleeve 5, a first slot 17 slightly larger than the anti-pull-out component 6 of the lower sleeve 5 is opened on the outside of the upper cover 4. A protrusion 18 is provided at the first slot 17 of the upper cover 4. The lower sleeve 5 has a connecting piece 61, an anti-counterfeiting toothed band 62, and a latch 19 formed by the upper edge of the lower sleeve 5. The anti-pull-out component 6 of the lower sleeve 5 is inside the first slot 17 of the upper cover 4, and the protrusion 18 of the upper cover 4 is fastened in the latch 19 of the anti-pull-out component 6 of the lower sleeve 5. This anti-counterfeiting design will destroy the anti-pull-out component 6 of the lower sleeve 5 regardless of the horizontal twisting opening force, the vertical physical pull-out force, or the high temperature boiling pull-out, thus forming an easily identifiable anti-counterfeiting structure, which cannot be restored after destruction.
[0051] The inner cap sleeve 2 adopts a dual-material injection molding process. Through the dual-material mold structure design, the inner cap 2 is divided into a bottle mouth part 21 and a bottle neck part 22, which are injection molded using two different raw materials. According to the food hygiene standards for liquor bottle caps and the requirements for high-temperature water boiling resistance, anti-pull-out, and anti-counterfeiting functions, the bottle mouth part 21 is in contact with the liquor, and the upper part is made of PET food-grade raw material. The bottle neck part 22 is not in contact with the liquor and is made of high-temperature resistant and high-strength materials, such as PBT + glass fiber, nylon + glass fiber, etc. (not limited to the above materials). Through the above settings, it is ensured that the inner cap sleeve 2 meets the requirements of food-grade hygiene conditions, and the deformation resistance of the bottle neck part 22 is enhanced, so that it will not be easily pulled off after being fitted with the bottle mouth. This achieves the requirements for anti-pull-out and anti-counterfeiting functions, and greatly enhances the requirements for high-temperature resistance and physical external force anti-counterfeiting.
[0052] The inner sleeve 2 is a one-piece molded structure formed by double injection molding, including a bottle mouth part 21 made of food-grade plastic and a bottle neck part 22 made of high-temperature resistant and high-strength plastic. The bottle mouth part 21 and the bottle neck part 22 are interlocked and injection molded together, which not only ensures the functional requirements of the inner sleeve 2 in bottle cap assembly, opening and tight fit of bottle mouth, but also meets the requirements of product production, filling, transportation and storage. It can also ensure that when the bottle cap is pulled off by external force, it will break first from the upper and lower joint of the double injection molded inner sleeve 2, so that the inner sleeve 2 is divided into two parts, forming a clearly identifiable and irreversible damage, thereby achieving a new structural anti-counterfeiting of the bottle cap.
[0053] The inner sleeve 2 of the bottle cap adopts dual-material injection molding technology, which is conducive to the rapid injection molding of the product on the injection molding machine. Moreover, the inner sleeve 2 is still a whole, which reduces the assembly cost of subsequent processes and helps to improve production efficiency.
[0054] This solution addresses the critical flaw of existing bottle caps, which can be easily removed from the bottle opening and the top cap 4 can be removed from the inner cap 3 by using tools to pull them forcefully or boiling them in hot water, without damaging the anti-counterfeiting components and making them difficult to identify. At the same time, it also solves the problem of the QR code reward red envelope inside the bottle cap being read by abnormal consumption.
[0055] In addition to the existing anti-counterfeiting structures, a new anti-counterfeiting structure against vertical pull-out force has been added, filling the structural anti-counterfeiting gap of liquor bottle caps under vertical pull-out force. This anti-counterfeiting cap design ensures that both the original horizontal twisting and the newly added vertical pull-out will damage the anti-counterfeiting components, creating an easily identifiable anti-counterfeiting function.
[0056] In addition to the existing anti-counterfeiting structures, a new anti-counterfeiting structure resistant to high-temperature boiling has been added, filling the structural anti-counterfeiting gap in liquor bottle caps under high-temperature boiling conditions. This anti-counterfeiting bottle cap design will destroy the anti-counterfeiting components under high-temperature boiling conditions, creating an easily identifiable anti-counterfeiting function.
[0057] Preferably, the breakable component 8 is located at the bottom of the bottle mouth portion 21. The breakable component 8 includes a first buckle 81 and a second buckle 82. The top of the bottle neck portion 22 is provided with a first slot 20 that cooperates with the first buckle 81, and the top of the bottle neck portion 22 is provided with a second slot 23 that cooperates with the second buckle 82.
[0058] Preferably, there are two first buckles 81, which are symmetrically arranged along the axis of the bottle mouth 21, and there are two second buckles 82, which are symmetrically arranged along the axis of the bottle mouth 21.
[0059] Preferably, the first buckle 81 includes three spaced-apart first protrusions 24, and correspondingly, the first slot 20 includes three first through holes 25 that can accommodate the first protrusions 24. When the first buckle 81 is engaged with the first slot 20, the three first protrusions 24 are respectively located in the three first through holes 25. The second buckle 82 includes a second protrusion 26, and correspondingly, the second slot 23 includes a second through hole 27 that can accommodate the second protrusion 26. When the second buckle 82 is engaged with the second slot 23, the second protrusion 26 is located in the second through hole 27.
[0060] Preferably, the breakable component 8 is located at the bottom of the bottle mouth portion 21. The breakable component 8 includes a third buckle 83. The top of the bottle neck portion 22 is provided with a third slot 28 that cooperates with the third buckle 83. The bottom of the bottle mouth portion 21 is provided with an insert block 29. Correspondingly, the top of the bottle neck portion 22 is provided with a slot 30.
[0061] Preferably, there are two third buckles 83, which are symmetrically arranged along the axis of the bottle mouth 21, and there are two inserts 29, which are symmetrically arranged along the axis of the bottle mouth 21.
[0062] Preferably, the third buckle 83 includes a third protrusion 31, and correspondingly, the third slot 28 includes a third through hole 32 that can accommodate the third protrusion 31. When the third buckle 83 is engaged with the third slot 28, the third protrusion 31 is located in the third through hole 32.
[0063] like Figure 11 As shown, an anti-removal and anti-counterfeiting bottle cap assembly process includes the following steps:
[0064] Step 1: First, insert the inner plug 1 into the inner sleeve 2, then put the inner cover 3 on the inner sleeve 2. The inner plug 1, inner sleeve 2 and inner cover 3 are assembled into the lower part of the whole.
[0065] Step two: First, align the lower edge of the upper cover 4 with the upper edge of the lower sleeve 5. Then, align the first groove 17 on the lower edge of the upper cover 4 with the anti-pull-out component 6 on the upper edge of the lower sleeve 5, and then slide the upper cover 4 or the lower sleeve 5 horizontally (e.g., Figure 11 In the middle, (translated along the X-axis direction), the protrusion 18 in the first slot 17 is inserted into the slot 19 of the anti-pull-out component 6, and the upper cover 4 and the lower sleeve 5 are assembled into the upper part of the whole;
[0066] Step 3: Press the upper part of the joint vertically downward into the lower part of the joint to form an anti-counterfeiting bottle cap.
[0067] Preferably, the order in which the inner plug 1 and the inner cover 3 are installed on the inner sleeve 2 in step one can be interchanged.
[0068] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Simple modifications and substitutions made by those skilled in the art without departing from the spirit and scope of the invention are within the protection scope of the present invention.
Claims
1. A process for assembling anti-removal and anti-counterfeiting bottle caps, characterized in that, include: The system comprises an inner plug, an inner sleeve, an inner cap, an upper cap, and a lower sleeve. An anti-pull-out component is provided between the upper cap and the lower sleeve, and the upper cap engages with the lower sleeve via this component. The inner sleeve is a one-piece molded structure made of two-color / two-material injection molding, including a bottle mouth made of food-grade plastic and a bottle neck made of high-temperature resistant, high-strength plastic. The bottle mouth is cap-shaped with a circular bottom and a liquid outlet at the top. The bottle neck is tubular, and several breakable components are provided between the bottle mouth and the bottle neck. The bottle mouth is connected to the lower sleeve via these breakable components. The inner sleeve has a snap-fit connection; the outer surface of the bottle mouth of the inner sleeve is threaded, and the inner cavity wall of the inner cover is also threaded, with the bottle mouth of the inner sleeve threadedly connected to the inner cover; the inner cover is located in the inner cavity of the upper cover, and the outer surface of the inner cover has a first step, correspondingly, the inner cavity wall of the upper cover has a first locking block that engages with the first step; the neck of the inner sleeve is located in the lower sleeve, and the outer surface of the neck has a second step, correspondingly, the inner wall of the lower sleeve has a second locking block that engages with the second step; the inner plug is located in the inner sleeve and is inserted into the bottle mouth of the inner sleeve. Includes the following steps: Step 1: First, insert the inner plug into the inner sleeve, then put the inner cover on the inner sleeve. The inner plug, inner sleeve and inner cover are assembled into the lower part as a whole. Step 2: First, attach the lower edge of the upper cover to the upper edge of the lower sleeve. Then, align the first groove on the lower edge of the upper cover with the anti-pull-out component on the upper edge of the lower sleeve. Move the upper cover or lower sleeve horizontally so that the protrusion in the first groove inserts into the slot of the anti-pull-out component. The upper cover and lower sleeve are then assembled into a single upper part. Step 3: Press the upper part of the joint vertically downward into the lower part of the joint to form an anti-counterfeiting bottle cap.
2. The anti-removal and anti-counterfeiting bottle cap assembly process as described in claim 1, characterized in that, The outer surface of the inner cover is provided with a first anti-slip protrusion, and correspondingly, the inner wall of the upper cover is provided with a second anti-slip protrusion that cooperates with the first anti-slip protrusion; the outer surface of the bottleneck is provided with a third anti-slip protrusion, and correspondingly, the inner wall of the lower sleeve is provided with a fourth anti-slip protrusion that cooperates with the third anti-slip protrusion.
3. The anti-removal and anti-counterfeiting bottle cap assembly process as described in claim 1, characterized in that, The anti-pull-out component includes a connecting piece and several anti-counterfeiting toothed strips on one side of the connecting piece. The anti-pull-out component is located on the upper edge of the lower sleeve, and the anti-counterfeiting toothed strips are connected to the upper edge of the lower sleeve. Correspondingly, the lower edge of the upper cover is provided with a first slot for accommodating the anti-pull-out component. The first slot is a blind hole, and a protrusion is provided on one side of the first slot. The outward protrusion length of the protrusion is greater than the thickness of the connecting piece and the anti-counterfeiting toothed strips. Correspondingly, there are two anti-counterfeiting toothed strips, and the two anti-counterfeiting toothed strips, together with the upper edge of the lower sleeve and one side of the connecting piece, form a locking slot. When the anti-pull-out component is inserted into the first slot, the protrusion engages with the locking slot.
4. The anti-removal and anti-counterfeiting bottle cap assembly process as described in claim 1, characterized in that, The breakable component is located at the bottom of the bottle neck. The breakable component includes a first buckle and a second buckle. The top of the bottle neck is provided with a first groove that cooperates with the first buckle, and the top of the bottle neck is provided with a second groove that cooperates with the second buckle.
5. The anti-removal and anti-counterfeiting bottle cap assembly process as described in claim 4, characterized in that, There are two first buckles, which are symmetrically arranged along the axis of the bottle mouth. There are also two second buckles, which are symmetrically arranged along the axis of the bottle mouth.
6. The anti-removal and anti-counterfeiting bottle cap assembly process as described in claim 4, characterized in that, The first buckle includes three spaced-apart first protrusions, and correspondingly, the first slot includes three first through holes that can accommodate the first protrusions. When the first buckle is engaged with the first slot, the three first protrusions are respectively located in the three first through holes. The second buckle includes a second protrusion, and correspondingly, the second slot includes a second through hole that can accommodate the second protrusion. When the second buckle is engaged with the second slot, the second protrusion is located in the second through hole.
7. The anti-removal and anti-counterfeiting bottle cap assembly process as described in claim 1, characterized in that, The breakable component is located at the bottom of the bottle mouth. The breakable component includes a third buckle. The top of the bottle neck is provided with a third slot that cooperates with the third buckle. The bottom of the bottle mouth is provided with an insert block. Correspondingly, the top of the bottle neck is provided with a slot.
8. The anti-removal and anti-counterfeiting bottle cap assembly process as described in claim 7, characterized in that, The number of the third buckles is two, and they are symmetrically arranged along the axis of the bottle mouth. The number of the inserts is two, and they are symmetrically arranged along the axis of the bottle mouth.
9. The anti-removal and anti-counterfeiting bottle cap assembly process as described in claim 7, characterized in that, The third buckle includes a third protrusion, and correspondingly, the third slot includes a third through hole that can accommodate the third protrusion. When the third buckle is engaged with the third slot, the third protrusion is located in the third through hole.
10. The anti-removal and anti-counterfeiting bottle cap assembly process as described in claim 1, characterized in that, The order in which the inner plug and inner cover are installed on the inner sleeve in step one can be interchanged.