A die holder for mounting a hardware stamping die
By introducing a combination structure of locking holes, locking blocks, slides, sliders, tie rods and return springs into the metal stamping die, the problem of complex die frame installation and disassembly is solved, enabling rapid installation and convenient disassembly of the die frame and improving operating efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU DINGTUO MACHINERY TECHNOLOGY CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-23
AI Technical Summary
In the existing hardware stamping die installation process, the installation and disassembly of the die frame are complicated. In particular, when one end of the die frame is inserted into the lower die, it is difficult to press the control block to fix or release the fixation, which increases the difficulty of the work.
A mold frame for installing metal stamping dies was designed, which adopts a combination structure of locking holes, locking blocks, slides, sliders, pull rods and return springs. The mold frame and locking blocks push against each other and the elastic counter-pushing force of the return springs to achieve quick installation and disassembly. Combined with the use of lifting plates and lifting springs, the mold frame is stably embedded and smoothly ejected.
It enables rapid installation and convenient disassembly of the mold frame, simplifies the operation process, and improves work efficiency and ease of use.
Smart Images

Figure CN224389787U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal stamping technology, specifically to a mold frame for installing metal stamping dies. Background Technology
[0002] Stamping dies are special process equipment used in cold stamping to process materials (metal or non-metal) into parts (or semi-finished products). They are called cold stamping dies (commonly known as cold stamping dies). Stamping is a pressure processing method that uses dies mounted on a press to apply pressure to materials at room temperature, causing them to separate or plastically deform, thereby obtaining the desired parts. During the stamping process, depending on the products to be produced, it is necessary to constantly change the appropriate die set.
[0003] In the prior art, a Chinese patent document with publication number CN222242355U and publication date of December 27, 2024, was proposed to solve the above-mentioned technical problems. The technical solution disclosed in the patent document is as follows: a mold frame for installing a metal stamping die, including a lower die and an upper die, wherein the upper die is disposed on top of the lower die, an installation block is installed inside the lower die, an ejector block is disposed on the top of the installation block, and sleeves are fixedly connected to the bottom of the ejector block around its perimeter. A support column is slidably connected inside the sleeve, and a return spring is sleeved on the surface of the support column. The top of the return spring is fixedly connected to the bottom of the sleeve.
[0004] The existing technology involves pressing a control block to move a control lever, which in turn moves a second movable block. The second movable block then presses against the first movable block, causing it to move downwards. This disengages the insert rod from the slot, releasing the mounting block's restriction and allowing the user to easily remove it. The appropriate ejector block can then be replaced according to the size of the stamped part. However, this mounting block requires pressing the control block during installation or removal to secure or release it. Furthermore, the control block locking assembly has two sets, located at both ends of the mounting block. When one end of the mounting block is inserted into the lower mold, it becomes difficult to press the control block inside the lower mold, increasing the workload. Utility Model Content
[0005] The purpose of this utility model is to provide a mold frame for installing metal stamping dies, so as to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0007] A mold frame for mounting a metal stamping die includes a stamping die, the stamping die including a lower die, and a mold frame is detachably mounted inside the lower die. Locking holes are provided inside the outer shells on both sides of the mold frame.
[0008] The lower mold is equipped with disassembly and assembly units on both the front and rear sides, and a lifting unit is provided on the bottom of the interior of the lower mold.
[0009] The disassembly and assembly unit includes cavities formed on the front and rear inner walls of the lower mold, and a locking block is provided inside the cavity, which is movably inserted into the locking hole.
[0010] A further improvement of this utility model is that: sliding grooves are provided on both sides of the cavity, and sliders are fixedly installed on both sides of the locking block, with the sliders slidably connected inside the sliding grooves.
[0011] A further improvement of this utility model is that: pull rods are fixedly installed on both rear sides of the locking block, and the pull rods extend to the outer side of the lower mold and are fixedly installed with pull plates.
[0012] A further improvement of this utility model is that a return spring is sleeved on the outer surface of the pull rod, one end of the return spring is fixedly installed on the rear side of the locking block, and the other end of the return spring is fixedly installed on the rear inner wall of the cavity.
[0013] A further improvement of this utility model is that a return spring is sleeved on the outer surface of the pull rod, one end of the return spring is fixedly installed on the rear side of the locking block, and the other end of the return spring is fixedly installed on the rear inner wall of the cavity.
[0014] A further improvement of this utility model is that: sliding rods are fixedly installed on both sides of the bottom of the lower mold, and rotating shafts are fixedly installed on both sides of the bottom of the lifting plate; a push-pull rod is rotatably connected to the inner axis of the rotating shaft.
[0015] A further improvement of this utility model is that: a movable block is rotatably connected to the other end of the push-pull rod, the movable block is slidably sleeved on the outer surface of the slide rod, and a lifting spring is sleeved on the outer surface of the slide rod outside the movable block.
[0016] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0017] This utility model provides a mold frame for installing metal stamping dies. By aligning the mold frame with the mounting groove of the lower die and slowly inserting it downwards, the bottom end of the mold frame contacts the locking block. The locking block is pushed into the cavity by the intersecting inclined surfaces of the mold frame and the locking block is pushed, and the return spring is squeezed. When the mold frame is fully inserted into place, the locking hole is aligned with the locking block. The elastic reaction force of the return spring pushes the locking block into the locking hole, so that the installation of the mold frame is locked, thereby achieving the effect of quick installation.
[0018] This utility model provides a mold frame for installing metal stamping dies. By pulling the pull plates on both sides outward, the locking block is moved backward by the pull rod. The slider slides in the slide groove, so that the locking block is disengaged from the locking hole, which can be quickly disassembled and promotes ease of use.
[0019] This utility model provides a mold frame for installing metal stamping dies. By setting a lifting plate, when the mold frame is unlocked, the lifting spring releases elastic potential energy, pushing the moving block to slide inward. The lifting plate is then lifted upward by the push-pull rod, and the limiting block slides upward in the limiting groove, ensuring that the lifting plate rises smoothly and pushes the mold frame out of the lower mold, making it easy for operators to remove and further improving ease of use. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the lower mold structure of this utility model;
[0022] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0023] Figure 4 This is a schematic diagram of the lifting plate structure of this utility model;
[0024] Figure 5 This is a schematic diagram of the bottom structure of the lifting plate of this utility model.
[0025] In the diagram: 1. Stamping die; 2. Lower die; 21. Cavity; 22. Slide groove; 23. Locking block; 24. Slider; 25. Pull rod; 26. Return spring; 27. Pull plate; 28. Limit groove; 29. Lifting plate; 210. Limiting block; 211. Slide rod; 212. Rotating shaft; 213. Push-pull rod; 214. Moving block; 215. Lifting spring; 3. Die frame; 31. Locking hole. Detailed Implementation
[0026] 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. Example
[0027] like Figure 1-5As shown, this utility model provides a mold frame for installing a metal stamping die, including a stamping die 1, a lower die 2, and a mold frame 3 detachably installed inside the lower die 2. Locking holes 31 are provided inside the outer shells on both sides of the mold frame 3. Disassembly and assembly units are provided on the front and rear sides of the lower die 2. A lifting unit is provided on the bottom of the lower die 2. Each disassembly and assembly unit includes a cavity 21 opened in the front and rear inner walls of the lower die 2. A locking block 23 is provided inside the cavity 21 and is movably inserted into the locking hole 3. Inside cavity 21, grooves 22 are provided on both sides of cavity 21. Slider 24 is fixedly installed on both sides of locking block 23. Slider 24 is slidably connected inside groove 22. Pull rod 25 is fixedly installed on both sides of the rear of locking block 23. Pull rod 25 extends on the outer side of lower mold 2 and is fixedly installed with pull plate 27. Return spring 26 is sleeved on the outer surface of pull rod 25. One end of return spring 26 is fixedly installed on the rear side of locking block 23, and the other end of return spring 26 is fixedly installed on the rear inner wall of cavity 21.
[0028] Furthermore, during installation, the mold frame 3 is aligned with the mounting groove of the lower mold 2 and slowly inserted downwards. The bottom end of the mold frame 3 contacts the locking block 23, and its inclined surface pushes the locking block 23 into the cavity 21, compressing the return spring 26. When the mold frame 3 is fully inserted, the locking hole 31 is aligned with the locking block 23. The elastic counterforce of the return spring 26 pushes the locking block 23 into the locking hole 31, thus locking the installation of the mold frame 3. During disassembly, the pull plates 27 on both sides are pulled outwards, and the locking block 23 is moved backwards through the pull rod 25. The slider 24 slides in the slide groove 22, causing the locking block 23 to disengage from the locking hole 31. Example
[0029] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the lifting unit includes a limiting groove 28 opened at the bottom of the inner wall on both sides of the lower mold 2, a lifting plate 29 is slidably installed on the bottom of the inner side of the lower mold 2, a limiting block 210 is fixedly installed on both sides of the lifting plate 29, the limiting block 210 is slidably connected to the inside of the limiting groove 28, a sliding rod 211 is fixedly installed on both sides of the bottom of the lower mold 2, a rotating shaft 212 is fixedly installed on both sides of the bottom of the lifting plate 29, a push-pull rod 213 is rotatably connected at the inner axis of the rotating shaft 212, a moving block 214 is rotatably connected at the other end of the push-pull rod 213, the moving block 214 is slidably sleeved on the outer surface of the sliding rod 211, and a lifting spring 215 is sleeved on the outer surface of the sliding rod 211 located outside the moving block 214.
[0030] Furthermore, after the lock is released, the lifting spring 215 releases its elastic potential energy, pushing the moving block 214 to slide inward, and pushing the lifting plate 29 upward through the push-pull rod 213. The limiting block 210 slides upward in the limiting groove 28 to ensure that the lifting plate 29 rises smoothly and pushes the mold frame 3 out of the lower mold 2, making it easy for the operator to remove.
[0031] The working principle of the mold frame for installing the metal stamping die will be explained in detail below.
[0032] like Figure 1-5 As shown, during installation, align the mold frame 3 with the mounting slot of the lower mold 2 and slowly insert it downwards. The bottom end of the mold frame 3 contacts the locking block 23, and its inclined surface pushes the locking block 23 into the cavity 21, compressing the return spring 26. When the mold frame 3 is fully inserted, the locking hole 31 aligns with the locking block 23. The elastic reaction force of the return spring 26 pushes the locking block 23 into the locking hole 31, thus locking the installation of the mold frame 3. When the mold frame 3 is inserted, it compresses the lifting plate 29, causing it to move downwards and drive the limiting block 210 to slide within the limiting groove 28. At the same time, one end of the push-pull rods 213 on both sides of the bottom of the lifting plate 29 rotates inside the rotating shaft 212, and the other end moves towards... The outward expansion pushes the moving block 214 to slide outward on the slide rod 211, further compressing the lifting spring 215. During disassembly, the pull plates 27 on both sides are pulled outward, and the locking block 23 is moved backward through the pull rod 25. The slider 24 slides in the slide groove 22, causing the locking block 23 to disengage from the locking hole 31. At this time, the reset spring 26 is stretched and is in an energy storage state. After the lock is released, the lifting spring 215 releases its elastic potential energy, pushing the moving block 214 to slide inward. The lifting plate 29 is lifted upward through the push-pull rod 213, and the limit block 210 slides upward in the limit groove 28 to ensure that the lifting plate 29 rises smoothly, pushing the mold frame 3 out of the lower mold 2 for easy removal by the operator.
[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A die set for mounting a hardware stamping die, comprising a stamping die (1), characterized by: The stamping die (1) includes a lower die (2), and a die frame (3) is detachably installed inside the lower die (2). Locking holes (31) are provided inside the outer shells on both sides of the die frame (3). The lower mold (2) is provided with disassembly and assembly units on both the front and rear sides, and a lifting unit is provided on the bottom of the interior of the lower mold (2); The disassembly and assembly unit includes a cavity (21) opened on the front and rear inner walls of the lower mold (2), and a locking block (23) is provided inside the cavity (21). The locking block (23) is movably inserted into the locking hole (31).
2. The die set for mounting a hardware stamping die according to claim 1, wherein: Slide grooves (22) are provided on both sides of the cavity (21), and sliders (24) are fixedly installed on both sides of the locking block (23). The sliders (24) are slidably connected inside the slide grooves (22).
3. The die set for mounting a hardware stamping die according to claim 2, wherein: Pull rods (25) are fixedly installed on both sides of the rear of the locking block (23). The pull rods (25) extend on the outer side of the lower mold (2) and are fixedly installed with pull plates (27).
4. The die set for mounting a hardware stamping die according to claim 3, wherein: A return spring (26) is sleeved on the outer surface of the pull rod (25). One end of the return spring (26) is fixedly installed on the rear side of the locking block (23), and the other end of the return spring (26) is fixedly installed on the rear inner wall of the cavity (21).
5. The die set for mounting a hardware stamping die according to claim 1, wherein: The lifting unit includes a limiting groove (28) opened at the bottom of the inner wall on both sides of the lower mold (2). A lifting plate (29) is slidably installed on the bottom of the inner side of the lower mold (2). Limiting blocks (210) are fixedly installed on both sides of the lifting plate (29). The limiting blocks (210) are slidably connected to the inside of the limiting groove (28).
6. The die set for mounting a hardware stamping die according to claim 5, wherein: Slide rods (211) are fixedly installed on both sides of the bottom of the lower mold (2), and rotating shafts (212) are fixedly installed on both sides of the bottom of the lifting plate (29). A push-pull rod (213) is rotatably connected at the inner axis of the rotating shaft (212).
7. The die set for mounting a hardware stamping die according to claim 6, wherein: The other end of the push-pull rod (213) is rotatably connected to a moving block (214), which is slidably sleeved on the outer surface of the slide rod (211). A lifting spring (215) is sleeved on the outer surface of the slide rod (211) outside the moving block (214).