A stamping die that facilitates material handling

By introducing a combination structure of sliding mold, tie rod and spring into the stamping die, the inconvenience and safety issues of manual material handling in existing stamping dies are solved, realizing automated handling of workpieces and ensuring operational safety and convenience.

CN224272885UActive Publication Date: 2026-05-26KUNSHAN DINGLONG PRECISION MOULD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN DINGLONG PRECISION MOULD CO LTD
Filing Date
2025-05-21
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing stamping dies require manual loading and unloading of materials during workpiece stamping, which is inconvenient and poses a safety risk of the upper die loosening and falling off.

Method used

A stamping die consisting of a lower die and an upper die was designed. Through a combination of sliding mold, tie rod, connecting rod and spring, the workpiece can be automatically picked up and placed, the upper die can be prevented from falling, and safety can be ensured.

Benefits of technology

It enables automated handling of workpieces, improves operational safety, prevents the upper mold from falling and injuring workers' hands, and enhances operational convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a stamping die for convenient material handling, belonging to the field of stamping die technology. It includes a lower die and an upper die. The upper die is located above the lower die. A sliding mold is slidably connected to the lower die. Side plates are fixedly connected to both symmetrical ends of the sliding mold, and the two side plates are slidably connected to the symmetrical sides of the upper part of the lower die. Pull rods are slidably inserted into both side plates. Springs are sleeved on the circumferential surfaces of the two pull rods. One end of each pull rod is movably hinged to a connecting rod through a hinge shaft, and the ends of the two connecting rods away from the two pull rods are movably hinged to the upper die through hinge shafts. In this utility model, the sliding mold is in an extended state in front of the lower die, so that there is no obstruction on the upper side during material handling, which facilitates the handling of workpieces and can prevent the upper die from falling and injuring the worker's hand during material handling.
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Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and more specifically, to a stamping die that facilitates material handling. Background Technology

[0002] Stamping dies are indispensable process equipment in stamping production. They are technology-intensive products that can manufacture parts of specified shapes and sizes according to customer needs and are widely used in many industries such as automobiles and home appliances.

[0003] Currently, common stamping dies typically consist of an upper die and a lower die. The workpiece is placed inside the lower die, and the upper die uses a closing stamping method to form the workpiece. However, most existing stamping dies generally require manual handling of the workpiece during stamping. Workers reach between the upper and lower dies to pick up or place the workpiece. This method is not only inconvenient, but also, because the stamping die itself has a certain weight, the die connection is prone to loosening after long-term operation. If the upper die is loose, there is a risk of it falling when workers pick up or place the workpiece, which cannot guarantee the safety of workers when picking up or placing the workpiece. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a stamping die that facilitates material handling. This aims to solve the problem that in the prior art, stamping dies generally require manual handling of materials during workpiece stamping. Workers typically reach between the upper and lower dies to handle the workpieces, which is not only inconvenient but also prone to loosening at the die joints due to the die's weight over extended periods. A loose upper die poses a risk of the workpiece falling during handling, compromising worker safety.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] A stamping die for easy material handling includes a lower die and an upper die. The upper die is located above the lower die. A sliding mold is slidably connected to the lower die. Side plates are fixedly connected to both symmetrical ends of the sliding mold, and the two side plates are slidably connected to the symmetrical sides of the upper part of the lower die. Pull rods are slidably inserted into both side plates. Springs are sleeved on the circumferential surfaces of the two pull rods. One end of each pull rod is movably hinged to a connecting rod via a hinge shaft, and the ends of the two connecting rods away from the two pull rods are movably hinged to the upper die via hinge shafts.

[0009] As a preferred embodiment of this utility model, a positioning pin group is fixedly connected to the lower mold, and a positioning hole group is provided at the rear end of the sliding mold, and the positioning pin group matches the positioning hole group.

[0010] As a preferred embodiment of this utility model, the sliding mold is provided with an upper guide hole group, the lower mold is provided with a lower guide hole group, and the upper guide hole group and the lower guide hole group have the same diameter. The bottom of the upper mold is fixedly connected with a positioning rod group, and the positioning rod group matches the upper guide hole group and the lower guide hole group.

[0011] As a preferred embodiment of this utility model, the lower mold is provided with a material discharge port and a material outlet, and the material discharge port and the material outlet are interconnected and correspond to the sliding mold.

[0012] As a preferred embodiment of this utility model, anti-detachment protrusions are fixedly connected to both symmetrical ends of the upper part of the lower mold, and the two side plates are respectively located below the two anti-detachment protrusions.

[0013] In a preferred embodiment of this utility model, a guide rod assembly is fixedly connected to the lower mold, and a sliding sleeve assembly is fixedly connected to the upper mold, with the sliding sleeve assembly slidably connected to the circumferential surface of the guide rod assembly.

[0014] 3. Beneficial Effects

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] (1) In this scheme, when stamping the workpiece, the workpiece is placed on the sliding mold, and the upper mold and the lower mold are closed to stamp the workpiece. During the mold closing process, two connecting rods, two tie rods and two springs pull the sliding mold, so that the workpiece moves to correspond with the upper mold for stamping. After the workpiece is stamped, the upper mold moves up to reset, so that the two connecting rods, two tie rods and two springs drive the sliding mold to reset. The sliding mold slides to the front side of the lower mold to reset. The sliding mold is in the extended state of the front side of the lower mold, so that there is no obstruction on the upper side during the material picking and placing process, which facilitates the picking and placing of the workpiece, and can avoid the situation where the upper mold falls and injures the workers' hands during the material picking process. Attached Figure Description

[0017] Figure 1 This is the front view of the present invention;

[0018] Figure 2 This is a perspective view of the present utility model;

[0019] Figure 3 This is an exploded view of the present invention.

[0020] Explanation of the labels in the diagram:

[0021] 1. Lower mold; 2. Upper mold; 3. Sliding mold; 4. Side plate; 5. Tie rod; 6. Spring; 7. Connecting rod; 8. Positioning pin assembly; 9. Positioning hole assembly; 10. Upper guide hole assembly; 11. Lower guide hole assembly; 12. Positioning rod assembly; 13. Material drop port; 14. Material discharge port; 15. Anti-detachment protrusion; 16. Guide rod assembly; 17. Sliding sleeve assembly. Detailed Implementation

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

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example:

[0026] Please see Figure 1-3 A stamping die for easy material handling includes a lower die 1 and an upper die 2. The upper die 2 is located above the lower die 1. A sliding mold 3 is slidably connected to the lower die 1. Side plates 4 are fixedly connected to both symmetrical ends of the sliding mold 3. The two side plates 4 are slidably connected to the symmetrical sides of the upper part of the lower die 1. Pull rods 5 are slidably inserted into both side plates 4. Springs 6 are sleeved on the circumferential surfaces of the two pull rods 5. One end of each pull rod 5 is movably hinged to a connecting rod 7 through a hinge shaft. The ends of the two connecting rods 7 away from the two pull rods 5 are movably hinged to the upper die 2 through hinge shafts.

[0027] In this embodiment, the upper die 2 and the lower die 1 are installed correspondingly on the stamping equipment. When stamping the workpiece, the workpiece is placed on the sliding die 3, and the stamping equipment controls the upper die 2 to press down and close with the lower die 1. During the pressing down of the upper die 2, the two connecting rods 7 are folded. The two connecting rods 7 pull the two tie rods 5 backward. Under the action of the elastic force of the two springs 6, the two tie rods 5 pull the sliding die 3 backward. During the sliding process, the rear end of the sliding die 3 will contact the rear wall of the lower die 1. At this time, the upper die 2 is located on the upper side of the lower die 1 and corresponds to the sliding die 3. The upper die 2 continues to press down and close with the lower die 1, and the two connecting rods 7 continue to fold. Since the sliding die 3 is restricted by the rear wall of the lower die 1, the continued folding of the two connecting rods 7 will pull the two tie rods 5 backward. The side plate 4 slides, and the two tie rods 5 compress the two springs 6 respectively. The two springs 6 buffer the mold closing of the upper mold 2 and the lower mold 1 to prevent excessive impact from damaging the mold. After the upper mold 2 and the lower mold 1 close, the workpiece on the sliding mold 3 is stamped and formed. After the workpiece is stamped and formed, the stamping equipment controls the upper mold 2 to move upward and reset. The upper mold 2 causes the two tie rods 5 to slide forward under the action of the two springs 6 through the two connecting rods 7. The two tie rods 5 are reset on both sides of the two side plates 4. Then, the upper mold 2 pushes the two tie rods 5 through the two connecting rods 7, so that the two tie rods 5 drive the sliding mold 3 to slide forward through the two side plates 4 respectively, so that the sliding mold 3 extends to the front side of the lower mold 1, thereby facilitating the workers to pick up and put down the workpiece.

[0028] Specifically, a positioning pin group 8 is fixedly connected to the lower mold 1, and a positioning hole group 9 is opened at the rear end of the sliding mold 3, and the positioning pin group 8 matches the positioning hole group 9.

[0029] In this embodiment, when the rear end of the sliding mold 3 contacts the rear wall of the lower mold 1, the positioning pin group 8 is inserted into the positioning hole group 9. The positioning pin group 8 and the positioning hole group 9 are used to position the sliding mold 3 after it slides, so that the upper mold 2 can accurately stamp the workpiece.

[0030] Specifically, the sliding mold 3 is provided with an upper guide hole group 10, and the lower mold 1 is provided with a lower guide hole group 11. The upper guide hole group 10 and the lower guide hole group 11 have the same diameter. The bottom of the upper mold 2 is fixedly connected with a positioning rod group 12, and the positioning rod group 12 matches the upper guide hole group 10 and the lower guide hole group 11.

[0031] In this embodiment, after the sliding mold 3 slides to correspond with the upper mold 2, the upper guide hole group 10 and the lower guide hole group 11 are connected and correspond. When the upper mold 2 continues to press down, the positioning rod group 12 will pass through the upper guide hole group 10 and the lower guide hole group 11 in sequence, so that the sliding mold 3 is stable when it is pressed, and the stamping effect is guaranteed.

[0032] Specifically, the lower mold 1 has a material discharge port 13 and a material outlet 14, and the material discharge port 13 and the material outlet 14 are connected and correspond to the sliding mold 3.

[0033] In this embodiment, the discharge port 13 allows the waste generated by the workpiece being stamped on the sliding mold 3 to enter the discharge port 14, facilitating the centralized processing of the waste.

[0034] Specifically, anti-detachment protrusions 15 are fixedly connected to both symmetrical ends of the upper part of the lower mold 1, and the two side plates 4 are located on the lower side of the two anti-detachment protrusions 15 respectively.

[0035] In this embodiment, two anti-detachment protrusions 15 restrict the two side plates 4, so that the sliding mold 3 can slide stably on the lower mold 1.

[0036] Specifically, a guide rod assembly 16 is fixedly connected to the lower mold 1, and a sliding sleeve assembly 17 is fixedly connected to the upper mold 2, with the sliding sleeve assembly 17 slidably connected to the circumferential surface of the guide rod assembly 16.

[0037] In this embodiment, the guide rod assembly 16 and the sliding sleeve assembly 17 are used to assist the closing of the upper die 2 and the lower die 1, ensuring accuracy during the stamping process.

[0038] Working principle: During the stamping of the workpiece, the workpiece is placed on the sliding die 3. The stamping equipment controls the upper die 2 to press down and close with the lower die 1. During the pressing down of the upper die 2, the two connecting rods 7 fold, and the two connecting rods 7 pull the two tie rods 5 backward. Under the action of the two springs 6, the two tie rods 5 pull the sliding die 3 backward. During the sliding process, the rear end of the sliding die 3 will contact the rear wall of the lower die 1. At this time, the upper die 2 is located on the upper side of the lower die 1 and corresponds to the sliding die 3. The upper die 2 continues to press down and close with the lower die 1. The two connecting rods 7 continue to fold and pull the two tie rods 5 to slide on the two side plates 4. The two tie rods 5 press down respectively. Two springs 6 are compressed to buffer the closing of the upper mold 2 and the lower mold 1. After the upper mold 2 and the lower mold 1 are closed, the workpiece on the sliding mold 3 is stamped and formed. After the workpiece is stamped and formed, the stamping equipment controls the upper mold 2 to move upward and reset. The upper mold 2 causes the two pull rods 5 to slide forward under the action of the elastic force of the two springs 6 through the two connecting rods 7. The two pull rods 5 are reset on both sides of the two side plates 4. Then, the upper mold 2 pushes the two pull rods 5 through the two connecting rods 7, so that the two pull rods 5 drive the sliding mold 3 to slide forward through the two side plates 4 respectively. The sliding mold 3 extends to the front side of the lower mold 1, which facilitates the workers to pick up and put down the workpiece.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A stamping die for facilitating the loading and unloading of material, comprising a lower die (1) and an upper die (2), characterized in that: The upper mold (2) is located on the upper side of the lower mold (1). A sliding mold (3) is slidably connected to the lower mold (1). Side plates (4) are fixedly connected to both symmetrical ends of the sliding mold (3). The two side plates (4) are slidably connected to the symmetrical sides of the upper part of the lower mold (1). Pull rods (5) are slidably inserted on both side plates (4). Springs (6) are sleeved on the circumferential surface of the two pull rods (5). One end of the two pull rods (5) is movably hinged to a connecting rod (7) through a hinge shaft. The ends of the two connecting rods (7) away from the two pull rods (5) are movably hinged to the upper mold (2) through hinge shafts.

2. The stamping die for facilitating the loading and unloading of a workpiece according to claim 1, wherein: The lower mold (1) is fixedly connected with a positioning pin group (8), and the rear end of the sliding mold (3) is provided with a positioning hole group (9), and the positioning pin group (8) matches the positioning hole group (9).

3. The stamping die for facilitating the loading and unloading of the workpiece according to claim 2, wherein: The sliding mold (3) is provided with an upper guide hole group (10), and the lower mold (1) is provided with a lower guide hole group (11). The upper guide hole group (10) and the lower guide hole group (11) have the same hole diameter. The bottom of the upper mold (2) is fixedly connected with a positioning rod group (12), and the positioning rod group (12) matches the upper guide hole group (10) and the lower guide hole group (11).

4. The stamping die for facilitating the loading and unloading of the workpiece according to claim 3, wherein: The lower mold (1) is provided with a material drop port (13) and a material discharge port (14), and the material drop port (13) and the material discharge port (14) are connected and correspond to the sliding mold (3).

5. The stamping die for facilitating the loading and unloading of the workpiece according to claim 4, wherein: The upper two symmetrical ends of the lower mold (1) are fixedly connected with anti-detachment protrusions (15), and the two side plates (4) are located on the lower side of the two anti-detachment protrusions (15).

6. The stamping die for facilitating the loading and unloading of the workpiece according to claim 5, wherein: The lower mold (1) is fixedly connected to a guide rod assembly (16), and the upper mold (2) is fixedly connected to a sliding sleeve assembly (17), with the sliding sleeve assembly (17) slidably connected to the circumferential surface of the guide rod assembly (16).