Die steel casting and forging piece with replaceable die core

The use of threaded rods and tie rods enables the mold core to be disassembled and assembled, solving the problem of inconvenient disassembly and assembly of traditional mold cores, and improving mold changeover efficiency and product quality.

CN224273147UActive Publication Date: 2026-05-26YIXING DINGLI MOULD MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YIXING DINGLI MOULD MFG CO LTD
Filing Date
2025-06-17
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The traditional method of fixing mold cores makes disassembly and assembly inconvenient, time-consuming and labor-intensive. Furthermore, once the mold core is worn or damaged, it is difficult to replace, affecting production efficiency and product quality.

Method used

It adopts a threaded rod and tie rod structure. By rotating the threaded rod, the tie rod is pulled outward to release the mold core limit, which facilitates the assembly and disassembly of the mold core. The height of the lifting plate can be adjusted to accommodate mold cores of different specifications.

Benefits of technology

It simplifies the mold changeover process, improves production stability, reduces equipment downtime, lowers production costs, and enhances product molding quality and yield.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of die steel casting and forging pieces, and discloses a die steel casting and forging piece with a replaceable die core, which comprises a die shell, a lifting plate is slidably connected to the inner wall of the die shell, a pull rod is slidably connected to the inner wall of the lifting plate, and die core bodies are connected to the two sides of the outer wall of the pull rod through buckle assemblies. And rotary knobs are rotationally connected to the left side and the right side of the inner wall of the lifting plate correspondingly, and the inward ends of the rotary knobs are connected with the mold shell through caliper assemblies correspondingly so as to be used for adjusting the height of the lifting plate. According to the utility model, by rotating the threaded rod I and pulling the pull rod outwards, the limitation on the mold core body can be relieved, and the mold core body can be taken down, so that the operation is simple, the structure is simple, the mold remodeling efficiency and the production stability are greatly improved, the downtime of equipment is reduced, the production time cost is saved, and the molding quality and the yield of products are improved.
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Description

Technical Field

[0001] This utility model relates to the field of mold steel casting and forging technology, and in particular to a mold steel casting and forging with replaceable mold core. Background Technology

[0002] In modern manufacturing, molds are used as key tools for product forming and are widely used in many fields such as automobiles, electronics, and aerospace. Mold steel castings and forgings have become the preferred material for manufacturing core components of molds due to their excellent strength, wear resistance and thermal fatigue resistance.

[0003] Traditional mold core fixing methods mainly use bolt fastening, welding, or interference fit. When using bolt fastening, numerous bolt holes need to be machined on the mold core and mold frame. During installation, multiple bolts must be tightened one by one, which is not only time-consuming and labor-intensive, but also prone to uneven bolt tightening torque leading to mold core positioning deviations. Furthermore, once the mold core is worn or damaged, it is difficult to replace.

[0004] In response to the technical problem of inconvenient mold core disassembly and assembly, this application proposes a mold steel casting or forging with replaceable mold core. Utility Model Content

[0005] The purpose of this utility model is to solve the shortcomings of the existing technology in that the mold core is inconvenient to disassemble and assemble, and to propose a mold steel casting and forging part with replaceable mold core. By rotating the threaded rod and pulling the pull rod outward, the limiting position on the mold core body can be released, and the mold core body can be removed. The operation is simple and the structure is simple, which greatly improves the mold change efficiency and production stability, reduces equipment downtime, saves production time and costs, and improves the molding quality and yield of products.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A mold steel casting or forging with a replaceable mold core includes a mold shell. A lifting plate is slidably connected to the inner wall of the mold shell. A pull rod is slidably connected to the inner wall of the lifting plate. Both sides of the outer wall of the pull rod are connected to the mold core body via a snap-fit ​​assembly for disassembling and assembling the mold core body. Knobs are rotatably connected to the left and right sides of the inner wall of the lifting plate. The inward end of each knob is connected to the mold shell via a clamp assembly for adjusting the height of the lifting plate.

[0008] Furthermore, the buckle assembly includes connecting frames fixedly connected to the left and right sides of the bottom end of the mold core body, and the inner walls of the connecting frames are provided with slots.

[0009] Furthermore, each of the card slots has a card block on its inner wall, and the shape of the card block matches the card slot.

[0010] Furthermore, each of the card blocks is fixedly connected to a sliding plate at one inward end, the inner wall of each sliding plate is provided with a sliding groove, and the outer wall of each sliding plate is slidably connected to the inner wall of the lifting plate.

[0011] Furthermore, both ends of the pull rod are fixedly connected to fixed rods, and the outer walls of the fixed rods are slidably connected to the inner wall of the groove.

[0012] Furthermore, the inner wall of the pull rod is provided with a threaded rod, the inner wall of the lifting plate is provided with a threaded groove, and the outer wall of the threaded rod is provided on the inner wall of the threaded groove.

[0013] Furthermore, the caliper assembly includes a threaded rod two fixedly connected to the inward end of the knob, and each threaded rod two has a caliper rod threadedly connected to its outer wall, and the outer wall of each caliper rod two is slidably connected to the inner wall of the lifting plate.

[0014] Furthermore, multiple limiting grooves are provided at both the left and right ends of the mold shell, and the shape of the outer wall of the clamping rod matches the limiting grooves.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, by rotating the threaded rod and pulling the pull rod outward, the limiting position on the mold core body can be released, and the mold core body can be removed. The operation is simple and the structure is simple, which greatly improves the mold change efficiency and production stability, reduces equipment downtime, saves production time and costs, and improves the molding quality and yield of products.

[0017] 2. In this utility model, the lifting plate that can move up and down can be adjusted according to the mold core body of different heights. By flexibly adjusting the height of the lifting plate, it can accurately match various specifications of mold cores, avoid the need to customize exclusive mold frames due to differences in mold core height, and greatly reduce the mold manufacturing cost. Attached Figure Description

[0018] Figure 1 This is a perspective view of a mold steel casting or forging with a replaceable mold core proposed in this utility model.

[0019] Figure 2 This is a cross-sectional view of the mold shell of a mold steel casting or forging with a replaceable mold core, as proposed in this utility model.

[0020] Figure 3 This is a cross-sectional view of the lifting plate of a mold steel casting or forging with a replaceable mold core proposed in this utility model.

[0021] Figure 4 This utility model presents a slide groove structure diagram for a mold steel casting or forging with a replaceable mold core.

[0022] Legend:

[0023] 1. Mold shell; 2. Lifting plate; 3. Tie rod; 4. Threaded rod one; 5. Fixing rod; 6. Slide plate; 7. Slide groove; 8. Locking block; 9. Connecting frame; 10. Locking groove; 11. Mold core body; 12. Knob; 13. Threaded rod two; 14. Locking rod; 15. Limiting groove. Detailed Implementation

[0024] 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.

[0025] Reference Figures 2-4 As shown, one embodiment of this utility model is provided: a mold steel casting or forging with replaceable mold core, including a mold shell 1, a lifting plate 2 slidably connected to the inner wall of the mold shell 1, a pull rod 3 slidably connected to the inner wall of the lifting plate 2, a mold core body 11 provided on the outer wall of the pull rod 3, connecting frames 9 fixedly connected to the left and right sides of the bottom end of the mold core body 11, slots 10 are provided on the inner wall of the connecting frames 9, and blocks 8 are provided on the inner wall of the slots 10. The shape of the blocks 8 fits the slots 10, and a sliding plate 6 is fixedly connected to one end of the blocks 8. A groove 7 is provided on the inner wall of the sliding plate 6, and the outer wall of the sliding plate 6 is slidably connected to the inner wall of the lifting plate 2. Fixed rods 5 are fixedly connected to the upper and lower ends of the pull rod 3, and the outer walls of the fixed rods 5 are slidably connected to the inner walls of the grooves 7. A threaded rod 4 is provided on the inner wall of the pull rod 3, and a threaded groove is provided on the inner wall of the lifting plate 2. The outer walls of the threaded rod 4 are all located on the inner walls of the threaded grooves for disassembling and assembling the mold core body 11.

[0026] Specifically, by rotating the threaded rod 4 and pulling the pull rod 3 outward, the limiting position on the mold core body 11 can be released, and the mold core body 11 can be removed. The operation is simple and the structure is simple, which greatly improves the mold change efficiency and production stability, reduces equipment downtime, saves production time and costs, and improves the molding quality and yield of products.

[0027] Reference Figure 1 and Figure 2 As shown, knobs 12 are rotatably connected to both sides of the inner wall of the lifting plate 2. A threaded rod 13 is fixedly connected to one end of each knob 12. A locking rod 14 is threadedly connected to the outer wall of each threaded rod 13. The outer wall of the locking rod 14 is slidably connected to the inner wall of the lifting plate 2. Multiple limiting grooves 15 are provided at both ends of the mold shell 1. The shape of the outer wall of the locking rod 14 matches the limiting groove 15 to adjust the height of the lifting plate 2.

[0028] Specifically, the lifting plate 2, which can move up and down, can be adjusted according to the different heights of the mold core body 11. By flexibly adjusting the height of the lifting plate 2, it can accurately match various specifications of mold cores, avoid the need to customize exclusive mold frames due to differences in mold core height, and significantly reduce mold manufacturing costs.

[0029] Working principle: First, when disassembling the mold core body 11, first rotate the threaded rod 4 to remove it from the threaded groove, releasing the limit on the pull rod 3, and pull the pull rod 3 outward. The pull rod 3 drives the fixing rods 5 at both ends to move forward. The fixing rods 5 cause the inner wall of the slide groove 7 to slide, and drive the sliding plates 6 on both sides to slide inward. The sliding plates 6 also drive the locking block 8 to move inward, removing the locking block 8 from the locking groove 10 and releasing the limit on the mold core body 11. Then, the mold core body 11 can be removed upward, completing the disassembly of the mold core body 11. Second, when installing, simply... The connecting frames 9 on both sides of the bottom end of the core body 11 are inserted into the lifting plate 2. After installation, push the pull rod 3 backward to insert the two side locking blocks 8 into the locking slots 10 to complete the installation. Next, when installing the core body 11 of different heights, first turn the knob 12. The knob 12 drives the threaded rod 13 to rotate and drives the locking rods 14 on both sides to slide outward to remove the locking rods 14 from the limiting slots 15. The height of the lifting plate 2 can then be adjusted. After adjustment, turn the knob 12 in the opposite direction to lock the locking rods 14 into the limiting slots 15 to limit the lifting plate 2, and then the installation can be carried out.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A die steel die core replaceable die steel die forging characterized by, The mold includes a mold housing (1), a lifting plate (2) is slidably connected to the inner wall of the mold housing (1), a pull rod (3) is slidably connected to the inner wall of the lifting plate (2), and a mold core body (11) is connected to both sides of the outer wall of the pull rod (3) through a buckle assembly for disassembling and assembling the mold core body (11). A knob (12) is rotatably connected to both sides of the inner wall of the lifting plate (2), and the inner end of the knob (12) is connected to the mold housing (1) through a clamp assembly for adjusting the height of the lifting plate (2).

2. A die steel cast-wrought component according to claim 1, wherein: The buckle assembly includes a connecting frame (9) fixedly connected to the left and right sides of the bottom end of the mold core body (11), and the inner wall of the connecting frame (9) is provided with a slot (10).

3. A die steel cast-wrought component for die cores according to claim 2, characterized in that: Each of the card slots (10) has a card block (8) on its inner wall, and the shape of the card block (8) matches the shape of the card slot (10).

4. A die steel cast-wrought component according to claim 3, wherein: Each of the card blocks (8) is fixedly connected to a sliding plate (6) at one end. The inner wall of each sliding plate (6) is provided with a sliding groove (7). The outer wall of each sliding plate (6) is slidably connected to the inner wall of the lifting plate (2).

5. A mold steel casting or forging with a replaceable mold core according to claim 4, characterized in that: The upper and lower ends of the pull rod (3) are fixedly connected to the fixing rod (5), and the outer wall of the fixing rod (5) is slidably connected to the inner wall of the groove (7).

6. A mold steel casting or forging with a replaceable mold core according to claim 2, characterized in that: The inner wall of the pull rod (3) is provided with a threaded rod (4), the inner wall of the lifting plate (2) is provided with a threaded groove, and the outer wall of the threaded rod (4) is provided on the inner wall of the threaded groove.

7. A mold steel casting or forging with a replaceable mold core according to claim 1, characterized in that: The caliper assembly includes a threaded rod two (13) fixedly connected to the inner end of the knob (12), and the outer wall of the threaded rod two (13) is threadedly connected to a caliper rod (14), and the outer wall of the caliper rod (14) is slidably connected to the inner wall of the lifting plate (2).

8. A mold steel casting or forging with a replaceable mold core according to claim 7, characterized in that: The mold shell (1) has multiple limiting grooves (15) on both the left and right ends, and the outer wall shape of the clamping rod (14) matches the limiting grooves (15).