Ejector structure of a pop can lid mold

By introducing an automatic ejection mechanism into the can lid mold, and using hydraulic cylinders and pneumatic cylinders to drive the lifting plate and the guide plate, the problem of the can lid mold getting stuck after stamping is solved, realizing automatic demolding and efficient material collection, improving production efficiency and reducing the risk of accidents.

CN224463598UActive Publication Date: 2026-07-07

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Filing Date
2025-08-11
Publication Date
2026-07-07

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Abstract

This utility model relates to an ejection structure for an aluminum can lid mold, including a lifting plate. A stamping die is fixedly connected to the middle of the bottom wall of the lifting plate. Through holes are provided at each of the four corners of the lifting plate, and support rods are slidably connected through and inside each through hole. A top plate is fixedly connected to the top of each of the four support rods. Limiting holes are provided at both the left and right sides and the front and rear ends inside the lifting plate. Limiting rods are slidably connected inside each limiting hole, and a fixing plate is fixedly connected to the bottom of each limiting rod. An ejection ring is fixedly connected through and inside the middle of the fixing plate. This ejection structure for an aluminum can lid mold allows for automatic demolding. When a stamping operation is required, a hydraulic cylinder is activated, extending the output end of the hydraulic cylinder to move the lifting plate downwards, inserting the stamping die into the forming groove to stamp the aluminum can lid material. When the output end of the hydraulic cylinder retracts, the fixing plate and the ejection ring slide outside the stamping die, ejecting the aluminum can lid that is fitted onto the outside of the stamping die.
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Description

Technical Field

[0001] This utility model relates to the field of can lid mold technology, specifically to an ejection structure for a can lid mold. Background Technology

[0002] Molds are various molds and tools used in industrial production to obtain the desired products through injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. Different molds are composed of different parts. They mainly achieve the processing of the shape of the object by changing the physical state of the material being molded. They are known as the "mother of industry". In the process of processing, the lids of some food packaging cans generally need to be formed by stamping with molds.

[0003] In the existing technology, during the stamping process of the can lid mold, the can lid is easily stuck on the outside of the stamping mold after being stamped, requiring manual removal. This is inefficient and increases the probability of accidents. Therefore, an ejection structure for the can lid mold is needed.

[0004] The above statements are for the purpose of providing background information in relation to this application only and do not necessarily constitute prior art. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses an ejection structure for an easy-open can lid mold, including a processing table, and an automatic ejection mechanism is provided on the top of the processing table;

[0007] The automatic ejection mechanism includes a lifting plate, a stamping die fixedly connected to the middle of the bottom wall of the lifting plate, through holes at the four corners of the lifting plate, support rods slidably connected through the inner side of each through hole, a top plate fixedly connected to the top of each of the four sets of support rods, limit holes at the left and right sides and front and rear ends of the lifting plate, limit rods slidably connected to the inner side of each limit hole, a fixed plate fixedly connected to the bottom end of each limit rod, and an ejection ring slidably connected through the middle of the fixed plate.

[0008] As a preferred embodiment of this utility model, a hydraulic cylinder is fixedly connected to the middle of the top wall of the top plate, and the output end of the hydraulic cylinder is fixedly connected to the middle of the top wall of the lifting plate.

[0009] As a preferred technical solution of this utility model, the limiting rods are fixedly connected to the left and right sides and the front and rear sides of the bottom wall of the top plate, and the ejector ring is slidably connected to the outside of the stamping die.

[0010] As a preferred embodiment of this utility model, an L-shaped plate is fixedly connected to the upper middle part of the left side wall of the processing table, and cylinders are fixedly connected to the front and rear ends of the top right side wall of the L-shaped plate.

[0011] As a preferred embodiment of this utility model, a connecting plate is fixedly connected to the output end of the cylinder, and a guide plate is fixedly connected to the middle of the right side wall of the connecting plate.

[0012] As a preferred embodiment of this utility model, a material collection box is fixedly connected to the right side wall of the processing table, and the material collection box is located at the bottom right end of the guide plate.

[0013] As a preferred embodiment of this utility model, the support rods are fixedly connected to the four corners of the top wall of the processing table, a forming groove is provided in the middle of the top wall of the processing table, and the stamping die is located directly above the forming groove.

[0014] The beneficial effects of this utility model are:

[0015] 1. The ejection structure of this type of can lid mold is achieved by activating a hydraulic cylinder when a can lid stamping operation is required. The output end of the hydraulic cylinder extends to move the lifting plate downward, inserting the stamping mold into the forming groove to stamp the can lid material. When the output end of the hydraulic cylinder retracts, the fixing plate and the ejection ring slide on the outside of the stamping mold, ejecting the can lid that is fitted on the outside of the stamping mold, thus achieving automatic demolding operation.

[0016] 2. The ejection structure of this type of can lid mold is achieved by activating a cylinder during the demolding process of the lifting plate. The cylinder output end extends, causing the connecting plate and the guide plate to move to the right. The guide plate is then moved to the bottom of the stamping mold. At this time, the stamping mold separates from the can lid, and the can lid slides to the side of the collection box under the guidance of the guide plate, entering the collection box to complete the material collection operation.

[0017] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0018] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.

[0019] In the accompanying drawings of the instruction manual:

[0020] Figure 1 This is a top view schematic diagram of the overall structure of the ejection structure of an easy-open can lid mold according to this utility model;

[0021] Figure 2This is a side view of the overall structure of the ejection structure of an easy-open can lid mold according to this utility model;

[0022] Figure 3 This is a partial front view schematic diagram of the ejection structure of an easy-open can lid mold according to this utility model;

[0023] Figure 4 This is a schematic diagram of the ejection structure of an easy-open can lid mold according to this utility model.

[0024] The reference numerals used in the above figures are explained as follows:

[0025] 1. Processing table; 2. Automatic ejection mechanism; 3. Support rod; 4. Top plate; 5. Hydraulic cylinder; 6. Through hole; 7. Lifting plate; 8. Limiting hole; 9. Limiting rod; 10. Fixing plate; 11. Ejection ring; 12. Stamping die; 13. Forming groove; 14. L-shaped plate; 15. Cylinder; 16. Connecting plate; 17. Guide slant plate; 18. Collection box. Detailed Implementation

[0026] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0027] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0028] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0029] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, X and / or Y means: X exists, Y exists, and X and Y exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0030] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0031] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0032] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0033] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0034] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0035] like Figures 1-4 As shown, the present invention provides an ejection structure for an easy-open can lid mold, including a processing table 1, and an automatic ejection mechanism 2 is provided on the top of the processing table 1.

[0036] The automatic ejection mechanism 2 includes a lifting plate 7. During its vertical movement, the lifting plate 7 drives the bottom stamping die 12 to move up and down. The stamping die 12 is fixedly connected to the middle of the bottom wall of the lifting plate 7. Through holes 6 are provided at each of the four corners of the lifting plate 7. These through holes 6, in conjunction with the support rods 3, allow the lifting plate 7 to move more smoothly up and down. Support rods 3 are slidably connected through and to the inside of each through hole 6. The support rods 3 can install and fix the processing table 1 and the top plate 4. The top of the four sets of support rods 3 are fixedly connected to the top plate 4. The lifting plate 7 has four sides inside. Both ends are provided with limit holes 8, which provide space for the installation of limit rods 9. Limit rods 9 connect the fixed top plate 4 and the fixed plate 10. The top plate 4 provides space for the installation of hydraulic cylinder 5. During the operation of hydraulic cylinder 5, the extension and retraction of the output end can drive the lifting plate 7 to move up and down. Limit rods 9 are slidably connected to the inner side of the limit holes 8. The bottom end of the limit rod 9 is fixedly connected to the fixed plate 10. The middle of the fixed plate 10 is penetrated and fixedly connected to the ejector ring 11. The ejector ring 11 can slide up and down on the outside of the stamping die 12, thereby ejecting the can lid.

[0037] A hydraulic cylinder 5 is fixedly connected to the middle of the top wall of the top plate 4. The output end of the hydraulic cylinder 5 is fixedly connected to the middle of the top wall of the lifting plate 7. The limit rods 9 are fixedly connected to the left and right sides and the front and rear sides of the bottom wall of the top plate 4 respectively. The ejector ring 11 is slidably connected to the outside of the stamping die 12. The ejector ring 11 and the fixed plate 10 are both fixed. During the up and down movement of the stamping die 12, the ejector ring 11 can slide on its outside to realize automatic demolding operation.

[0038] An L-shaped plate 14 is fixedly connected to the upper middle part of the left side wall of the processing table 1. Cylinders 15 are fixedly connected to the front and rear ends of the top right side wall of the L-shaped plate 14. A connecting plate 16 is fixedly connected to the output end of the cylinder 15. A guide plate 17 is fixedly connected to the middle of the right side wall of the connecting plate 16. The guide plate 17 is inclined and can guide and convey the finished can lid.

[0039] A material collection box 18 is fixedly connected to the right side wall of the processing table 1. The material collection box 18 is located at the bottom right end of the guide plate 17. The support rods 3 are fixedly connected to the four corners of the top wall of the processing table 1. A forming groove 13 is provided in the middle of the top wall of the processing table 1. The stamping die 12 is located directly above the forming groove 13. The stamping die 12 and the forming groove 13 cooperate to stamp the aluminum material and stamp the aluminum material into a can lid.

[0040] Working principle: When it is necessary to stamp the can lid, the hydraulic cylinder 5 is activated. The output end of the hydraulic cylinder 5 extends, causing the lifting plate 7 to move downward. The stamping die 12 is inserted into the forming groove 13 to stamp the can lid material. When the output end of the hydraulic cylinder 5 retracts, the fixing plate 10 and the ejector ring 11 slide outside the stamping die 12, ejecting the can lid that is fitted outside the stamping die 12. During the demolding process of the lifting plate 7 moving upward, the cylinder 15 is activated. The output end of the cylinder 15 extends, causing the connecting plate 16 and the guide plate 17 to move to the right. The guide plate 17 is moved to the bottom of the stamping die 12. At this time, the stamping die 12 separates from the can lid. Under the guidance of the guide plate 17, the can lid slides to the side of the collection box 18 and enters the collection box 18 to complete the material collection operation.

[0041] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An ejection structure for an easy-open can lid mold, comprising a processing table, characterized in that: The top of the processing table is equipped with an automatic ejection mechanism; The automatic ejection mechanism includes a lifting plate, a stamping die fixedly connected to the middle of the bottom wall of the lifting plate, through holes at the four corners of the lifting plate, support rods slidably connected through the inner side of each through hole, a top plate fixedly connected to the top of each of the four sets of support rods, limit holes at the left and right sides and front and rear ends of the lifting plate, limit rods slidably connected to the inner side of each limit hole, a fixed plate fixedly connected to the bottom end of each limit rod, and an ejection ring slidably connected through the middle of the fixed plate.

2. The ejection structure of a can lid mold according to claim 1, characterized in that, A hydraulic cylinder is fixedly connected to the middle of the top wall of the top plate, and the output end of the hydraulic cylinder is fixedly connected to the middle of the top wall of the lifting plate.

3. The ejection structure of a can lid mold according to claim 1, characterized in that, The limiting rods are fixedly connected to the left and right sides and the front and rear sides of the bottom wall of the top plate, respectively, and the ejector ring is slidably connected to the outside of the stamping die.

4. The ejection structure of a can lid mold according to claim 1, characterized in that, An L-shaped plate is fixedly connected to the upper left side wall of the processing table, and cylinders are fixedly connected to the front and rear ends of the top right side wall of the L-shaped plate.

5. The ejection structure of a can lid mold according to claim 4, characterized in that, A connecting plate is fixedly connected to the output end of the cylinder, and a guide plate is fixedly connected to the middle of the right side wall of the connecting plate.

6. The ejection structure of a can lid mold according to claim 1, characterized in that, A material collection box is fixedly connected to the right side wall of the processing table, and the material collection box is located at the bottom right end of the guide plate.

7. The ejection structure of a can lid mold according to claim 1, characterized in that, The support rods are fixedly connected to the four corners of the top wall of the processing table. A forming groove is provided in the middle of the top wall of the processing table, and the stamping die is located directly above the forming groove.