Quick replacement device for processing mold of aluminum plastic ring cover

CN224527752UActive Publication Date: 2026-07-21SHANDONG HARMONY PACKAGING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG HARMONY PACKAGING TECH CO LTD
Filing Date
2025-08-26
Publication Date
2026-07-21

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Abstract

The utility model relates to pull ring cover processing technical field and disclose a kind of quick replacement device of aluminium-plastic pull ring cover processing mould, including base, the top of base is provided with mould, the top of base is provided with connecting assembly, the inside of mould is provided with locking assembly, the connecting assembly includes spigot and square slot, elastic pad, inner spring piece, limit sheet, inner connecting column piece and antiskid holding handle.The quick replacement device of aluminium-plastic pull ring cover processing mould is provided with connecting assembly, the spigot block of mould bottom is aligned with the spigot and square slot in the inside of base and then inserted, after insertion, antiskid holding handle can be held and then pulled away from the direction of base, until the limit sheet is removed from the inside of base, at this time, inner spring piece is no longer compressed, rebound force is generated to let elastic pad close to spigot block expand, spigot block is clamped using rebound force, four spigot blocks are locked after preliminary positioning can be completed, and fast positioning installation can be realized.
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Description

Technical Field

[0001] This utility model relates to the field of pull ring cap processing technology, specifically a quick-change device for aluminum-plastic pull ring cap processing molds. Background Technology

[0002] As a type of sealed packaging component that combines the properties of metal and plastic, aluminum-plastic pull-tab caps have become the mainstream packaging choice for industries such as beverage, food, and pharmaceuticals due to their advantages of easy opening, strong sealing, and moderate cost. In the production line, aluminum-plastic pull-tab caps need to be processed through multiple processes such as stamping, injection molding, and composite molding. Among them, the mold is the core equipment that determines the dimensional accuracy and appearance quality of the product.

[0003] The prior art discloses a mold for processing aluminum-plastic pull-ring caps, with announcement number CN222626012U. The mold includes a mold body with a pressing groove on the top. A protruding plate is fixedly connected to the outside of the mold body. A die-casting mechanism is located on the top of the mold body, and a discharge mechanism is located inside the mold body. The die-casting mechanism includes a support component, a pressing component, and a connecting component. The support component is located on the top of the mold body, and the pressing component is slidably connected to the outer ring of the support component. With this mold for processing aluminum-plastic pull-ring caps, the discharge mechanism allows the worker to press the rubber pressing pad upwards after the aluminum-plastic pull-ring cap is stamped, thereby driving the discharge cylinder upwards and disengaging the stamped aluminum-plastic pull-ring cap from the mold body.

[0004] The aforementioned quick-change device for aluminum-plastic pull-ring cap processing molds facilitates demolding of the processed aluminum-plastic pull-ring caps by workers, reducing the likelihood of damage to the aluminum-plastic pull-ring caps after demolding. However, the aforementioned quick-change device for aluminum-plastic pull-ring cap processing molds cannot quickly position and initially lock different mold models during installation, resulting in low installation efficiency and poor performance during use. Improvements are needed in this regard. Utility Model Content

[0005] The purpose of this invention is to provide a quick-change device for processing molds of aluminum-plastic pull ring caps, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-change device for processing molds of aluminum-plastic pull ring caps, comprising a base, a mold disposed on the top of the base, a connecting component disposed on the top of the base, and a locking component disposed inside the mold.

[0007] The connecting assembly includes a mating groove, an elastic pad, an inner spring, a limiting plate, an inner connecting post, and an anti-slip grip. The mating groove is located on the top of the base. The elastic pad is fixedly connected to the inside of the base. The inner spring is fixedly connected to the inside of the elastic pad. The inner connecting post is fixedly connected to the inside of the limiting plate. The anti-slip grip is fixedly connected to the front of the inner connecting post.

[0008] Preferably, the locking assembly includes a screw, a plug block, and a nut. The nut is fixedly connected to the top of the screw, the plug block is fixedly connected to the bottom of the mold, and the plug block is inserted into the interior of the base.

[0009] Preferably, the base has a through groove on its side, and the area of ​​the through groove is adapted to the side area of ​​the limiting piece.

[0010] Preferably, the limiting piece is slidably connected to the side of the base and the limiting piece is slidably connected to the back of the elastic pad.

[0011] Preferably, the mold has a threaded groove inside, the screw is threaded to the inside of the mold, and the base has a threaded groove at the bottom inside. When in use, hold the nut and drive the screw to turn until the screw is screwed into the threaded groove at the bottom inside the base, so that the mold can be installed and finally locked. It will not move during use and will not affect normal use.

[0012] Preferably, the area of ​​the plug block is adapted to the area of ​​the plug groove. The adaptation of the two areas ensures that after the plug block is inserted into the plug groove, the back of the plug block contacts the inner back of the plug groove, while the front slides against the back of the limiting piece, which can position the connection and ensure the tightness of the installation.

[0013] Preferably, the plug block has a connecting screw hole with the same diameter as the threaded groove inside.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The quick-change device for the aluminum-plastic pull ring cap processing mold is equipped with a connecting component. The bottom of the mold is aligned with the insertion groove inside the base and then inserted. After insertion, the non-slip handle can be held and pulled away from the base until the limiting piece is moved out of the base. At this time, the inner spring is no longer compressed and a rebound force is generated, causing the elastic pad to expand near the insertion block. The rebound force clamps the insertion block. After all four insertion blocks are locked, the initial positioning can be completed, enabling quick positioning and installation.

[0016] 2. This quick-change device for aluminum-plastic pull ring cap processing molds features a locking component. It utilizes a plug-in block, a plug-in groove, an elastic pad, and an inner spring for installation, offering high adaptability. After initial positioning, the nut can be held and the screw can be turned until it is screwed into the threaded groove at the bottom of the base. The screw then locks the thread, thus installing the mold. This device is convenient for installing molds of different sizes and allows for easy disassembly and processing, making it easy to use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the mold and locking assembly of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the base and connecting components of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. Base; 2. Mold; 3. Connecting assembly; 301. Insertion groove; 302. Elastic pad; 303. Inner spring; 304. Limiting plate; 305. Inner connecting column; 306. Anti-slip grip; 4. Locking assembly; 401. Screw; 402. Insertion block; 403. Nut. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 The present invention provides the following technical solution:

[0024] A quick-change device for processing molds for aluminum-plastic pull ring caps includes a base 1, a mold 2 disposed on the top of the base 1, a connecting component 3 disposed on the top of the base 1, and a locking component 4 disposed inside the mold 2.

[0025] The connecting assembly 3 includes a mating groove 301, an elastic pad 302, an inner spring 303, a limiting piece 304, an inner connecting post 305, and an anti-slip grip 306. The mating groove 301 is formed on the top of the base 1. The elastic pad 302 is fixedly connected to the inside of the base 1. The inner spring 303 is fixedly connected to the inside of the elastic pad 302. The inner connecting post 305 is fixedly connected to the inside of the limiting piece 304. The anti-slip grip 306 is fixedly connected to the front of the inner connecting post 305. A through groove is formed on the side of the base 1. The area of ​​the through groove is adapted to the side area of ​​the limiting piece 304. The limiting piece 304 is slidably connected to the side of the base 1 and slidably connected to the back of the elastic pad 302.

[0026] The locking assembly 4 includes a screw 401, a plug block 402, and a nut 403. The nut 403 is fixedly connected to the top of the screw 401, and the plug block 402 is fixedly connected to the bottom of the mold 2. The plug block 402 is inserted into the interior of the base 1. The interior of the plug block 402 has a connecting screw hole with the same diameter as the threaded groove. The interior of the mold 2 has a threaded groove, and the screw 401 is threadedly connected to the interior of the mold 2. The bottom of the interior of the base 1 has a threaded groove. In use, holding the nut 403 will drive the screw 401 to move forward. Tighten the screw until the screw 401 is screwed into the threaded groove at the bottom of the base 1 to install the mold 2, achieving the final locking purpose. It will not move during use and affect normal use. The area of ​​the plug block 402 is adapted to the area of ​​the plug groove 301. The adaptation of the two areas ensures that after the plug block 402 is inserted into the plug groove 301, the back of the plug block 402 contacts the back of the plug groove 301, while the front slides against the back of the limiting piece 304, which can position the connection and ensure the tightness of the installation.

[0027] When using the mold 2, align the insertion block 402 at the bottom of the mold 2 with the insertion groove 301 inside the base 1, and then insert it. During insertion, the back of the insertion block 402 contacts the back of the inside of the insertion groove 301, while the front slides against the back of the limiting piece 304. After insertion, hold the anti-slip handle 306 and pull it away from the base 1 until the limiting piece 304 is removed from the inside of the base 1. At this point, the inner spring 303 is no longer compressed, generating a rebound force that causes the elastic pad 302 to expand near the insertion block 402. The spring force clamps the plug-in block 402. After all four plug-in blocks 402 are locked, the initial positioning can be completed. During installation, the plug-in block 402 is used in conjunction with the plug-in groove 301, the elastic pad 302 and the inner spring 303 for installation. It has a high degree of adaptability. After the initial positioning is completed, the nut 403 can be held to drive the screw 401 to be turned until the screw 401 is screwed into the threaded groove at the bottom of the base 1. The screw 401 is used to lock the thread, thereby installing the mold 2. It is convenient to adapt to the installation of molds 2 of different sizes and is easy to disassemble and handle. It is easy to use.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick change device for an aluminium plastic ring lid processing die comprising a base (1), characterised in that: The top of the base (1) is provided with a mold (2), the top of the base (1) is provided with a connecting assembly (3), the inside of the mold (2) is provided with a locking assembly (4); The connecting assembly (3) includes a plug-in rectangular groove (301), an elastic pad (302), an inner spring piece (303), a limiting sheet (304), an inner connecting column piece (305) and an anti-skid holding handle (306), the plug-in rectangular groove (301) is opened in the top of the base (1), the elastic pad (302) is fixedly connected to the inside of the base (1), the inner spring piece (303) is fixedly connected to the inside of the elastic pad (302), the inner connecting column piece (305) is fixedly connected to the inside of the limiting sheet (304), and the anti-skid holding handle (306) is fixedly connected to the front face of the inner connecting column piece (305).

2. The quick change device for processing mold of the aluminum-plastic ring cover according to claim 1, characterized in that: The locking assembly (4) includes a screw rod (401), a plug-in block (402) and a screw cap (403), the screw cap (403) is fixedly connected to the top of the screw rod (401), the plug-in block (402) is fixedly connected to the bottom of the mold (2), and the plug-in block (402) is plugged into the inside of the base (1).

3. The quick change device for processing mold of the aluminum-plastic ring cover according to claim 1, characterized in that: The side of the base (1) is provided with a through groove, and the area of the through groove is matched with the side area of the limiting sheet (304).

4. The quick change device for processing mold of the aluminum-plastic ring cover according to claim 1, characterized in that: The limiting sheet (304) is slidingly connected to the side of the base (1), and the limiting sheet (304) is slidingly connected to the back of the elastic pad (302).

5. The quick change device for an aluminum-plastic ring lid processing die according to claim 2, characterized in that: The inside of the mold (2) is provided with a threaded groove, and the screw rod (401) is threadedly connected to the inside of the mold (2).

6. The quick change device for an aluminum-plastic ring lid processing die according to claim 2, characterized in that: The area of the plug-in block (402) is matched with the area of the plug-in rectangular groove (301).

7. The quick change device for an aluminum-plastic ring lid processing die according to claim 2, characterized in that: The inside of the plug-in block (402) is provided with a connecting screw hole with a hole diameter equal to that of the threaded groove.