Punch rod device suitable for multiple tank shapes
By designing a detachable multi-can shape punching device, the problem of low can shape conversion efficiency in the existing technology is solved, and the punching can is quickly replaced, which is suitable for the production of various beverage cans.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU RONGXIN CONTAINER
- Filing Date
- 2025-01-08
- Publication Date
- 2026-05-12
AI Technical Summary
Existing stretching machines require changing molds and punches when producing cans of different capacities, resulting in low changeover efficiency.
Design a punch rod device suitable for multiple can shapes. The punch and punch rod body can be detachably connected by a connector. The punch includes a first punch, a second punch and a punch pad. Multiple punches are fitted on the push rod to adapt to different can shape requirements.
It enables quick replacement of punches, improves can shape conversion efficiency, and is suitable for the production of various can shapes.
Smart Images

Figure CN224222437U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of beverage can manufacturing technology, and in particular to a punching device suitable for multiple can shapes. Background Technology
[0002] In the manufacturing process of aluminum beverage cans, the raw materials need to be shaped into cans. This is done using a stretching machine, also known as a can forming machine, which is a double-action horizontal punch press.
[0003] Due to design limitations, stretching machines can generally only produce one type of can shape. If other can shapes need to be produced, the stretching machine needs to be replaced with spare parts such as molds and punches.
[0004] In the manufacturing of aluminum beverage cans, there are currently multiple product types that need to be converted (e.g., 200ml, 330ml, 500ml). When converting between product types, the relevant molds need to be changed. However, when changing the molds on the stretching machine, the appropriate punch also needs to be replaced. Because of this punch replacement, the punch center needs to be recalibrated using a dial indicator, resulting in a long machine changeover time.
[0005] Therefore, a punching device suitable for multi-can shapes is provided to address the shortcomings of existing technologies. Utility Model Content
[0006] In order to overcome the shortcomings of the existing technology, this utility model provides a punching device suitable for multiple can shapes, which aims to solve the problem of low replacement efficiency caused by the need to change the appropriate punching when producing beverage cans of different capacities.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A punching device suitable for multi-can shapes includes: a punching body, a punch head, and a connector;
[0009] The punch rod body is detachably connected to the punch head via the connector;
[0010] The punch includes a first punch, a plurality of second punches, and a punch pad;
[0011] The punch body includes a push rod, and the first punch is sleeved on the push rod, or the punch pad and the second punch are sequentially sleeved on the push rod.
[0012] As a further improvement to the technical solution of this utility model, the first punch is provided with a first cavity, which is adapted to the outer wall surface of the push rod.
[0013] As a further improvement to the technical solution of this utility model, the push rod includes an inner and an outer part, the second punch is provided with a second cavity, the second cavity is adapted to the outer wall surface of the outer part, and the punch pad is provided with a third cavity, the third cavity is adapted to the outer wall surface of the inner part.
[0014] As a further improvement to the technical solution of this utility model, the end of the push rod is provided with a threaded hole that is threadedly connected to the connecting rod.
[0015] As a further improvement to the technical solution of this utility model, the length of the first punch is equal to the sum of the lengths of the second punch and the punch pad.
[0016] As a further improvement to the technical solution of this utility model, the connecting member is a fastening screw.
[0017] As a further improvement to the technical solution of this utility model, the first punch is a 500ml punch.
[0018] As a further improvement to the technical solution of this utility model, the second punch includes a 330ml punch and a 200ml punch.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0020] In this utility model, a punching device applicable to multiple can shapes is provided. The punching body is detachably connected to the punch head via a connector. The punch head includes a first punch, several second punches, and a punch pad. The punching body includes a push rod. The first punch is sleeved on the push rod or the punch pad, and the second punches are sequentially sleeved on the push rod. When different capacities of aluminum beverage cans need to be manufactured, different punches need to be replaced. The connector is unscrewed, the previous punch is removed, a suitable punch is installed into the push rod, and the connector is tightened. This punching device applicable to multiple can shapes features high replacement efficiency and applicability to stamping various can shapes. Attached Figure Description
[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
[0022] Figure 1 This is a schematic diagram of the structure of the first punch in the punching device applicable to multiple cans of this utility model;
[0023] Figure 2 This is an exploded view of the first punch in the punching device applicable to multiple cans of this utility model;
[0024] Figure 3 This is a schematic diagram of the structure of the second punch in the punching device applicable to multiple cans of this utility model;
[0025] Figure 4This is an exploded view of the second punch in the multi-can shaped punching device of this utility model.
[0026] In the picture:
[0027] 1. Punch rod body; 11. Push rod; 12. Threaded hole;
[0028] 21. First punch; 211. First cavity; 22. Second punch; 221. Second cavity; 23. Punch pad; 231. Third cavity;
[0029] 3. Connectors. Detailed Implementation
[0030] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The same reference numerals used throughout the drawings indicate the same or similar parts.
[0031] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. Furthermore, the descriptions of "up," "down," "left," and "right" used in this invention are only relative to the relative positional relationships of the various components of the invention in the accompanying drawings.
[0032] Reference Figures 1 to 4 A punching device suitable for multi-can shapes, comprising a punching body 1, a punch and a connector 3;
[0033] In one embodiment, the punch body 1 is detachably connected to the punch head via a connector 3; the punch head includes a first punch head 21, a plurality of second punch heads 22 and a punch head pad 23; the punch body 1 includes a push rod 11, the first punch head 21 is sleeved on the push rod 11, or the punch head pad 23 and the second punch head 22 are sequentially sleeved on the push rod 11.
[0034] The punch body 1 is detachably connected to the punch head via a connector 3. The punch head includes a first punch 21, several second punches 22, and a punch pad 23. The punch body 1 includes a push rod 11, with the first punch 21 fitted onto the push rod 11 or the punch pad 23, and the second punches 22 sequentially fitted onto the push rod 11. When different capacities of aluminum cans need to be manufactured, different punches need to be replaced. The connector 3 is unscrewed, the previous punch is removed, a suitable punch is installed into the push rod 11, and the connector 3 is tightened. This punch device, applicable to multiple can shapes, features high replacement efficiency and is suitable for stamping various can shapes. By optimizing the installation dimensions of the punch on the current stretching machine, the punch does not need to be replaced when changing can shapes, solving the problem of adjustment after replacing the punch, realizing the conversion of multiple can shapes, and improving the efficiency of shape changeover.
[0035] When replacing a 500ml aluminum can with a 330ml can, unscrew connector 3, remove the first punch 21, then insert the punch pad 23 and the second punch 22 into the push rod 11 in sequence, and finally tighten connector 3 to complete the replacement.
[0036] In one embodiment, refer to Figures 1-2 As shown, the first punch 21 is provided with a first cavity 211, which is adapted to the outer wall surface of the push rod 11.
[0037] In one embodiment, refer to Figures 3-4 As shown, the push rod 11 includes an inner and an outer part. The second punch 22 is provided with a second cavity 221, which is adapted to the outer wall surface of the outer part. The punch pad 23 is provided with a third cavity 231, which is adapted to the outer wall surface of the inner part.
[0038] In one embodiment, the end of the push rod 11 is provided with a threaded hole 12 that is threadedly connected to the connecting rod.
[0039] In one embodiment, the length of the first punch 21 is equal to the sum of the lengths of the second punch 22 and the punch pad 23.
[0040] In one embodiment, connector 3 is a fastening screw.
[0041] In one embodiment, the first punch 21 is a 500ml punch. The second punch 22 is a 330ml punch and a 200ml punch.
[0042] Other aspects of the punching device applicable to multi-can shapes described in this utility model are found in the prior art and will not be repeated here.
[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.
[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
Claims
1. A punching device suitable for multi-can shapes, characterized in that, include: punch body, punch head and connector; The punch rod body is detachably connected to the punch head via the connector; The punch includes a first punch, a plurality of second punches, and a punch pad; The punch body includes a push rod, and the first punch is sleeved on the push rod, or the punch pad and the second punch are sequentially sleeved on the push rod.
2. The punching device suitable for multi-can shapes according to claim 1, characterized in that, The first punch has a first cavity, which is adapted to the outer wall surface of the push rod.
3. The punching device suitable for multi-can shapes according to claim 1, characterized in that, The push rod includes an inner and an outer part. The second punch has a second cavity that is adapted to the outer wall surface of the outer part. The punch pad has a third cavity that is adapted to the outer wall surface of the inner part.
4. The punching device suitable for multi-can shapes according to claim 1, characterized in that, The end of the push rod is provided with a threaded hole that is threadedly connected to the connecting rod.
5. A punching device suitable for multi-can shapes according to claim 1, characterized in that, The length of the first punch is equal to the sum of the lengths of the second punch and the punch pad.
6. A punching device suitable for multi-can shapes according to claim 1, characterized in that, The connecting component is a fastening screw.
7. A punching device suitable for multi-can shapes according to claim 1, characterized in that, The first punch is a 500ml punch.
8. A punching device suitable for multi-can shapes according to claim 1, characterized in that, The second punch includes a 330ml punch and a 200ml punch.