A mould for assembling a round-link chain

By combining a four-piece mold sleeve with a limiting electric push rod, the problem of difficult demolding caused by the difference in thermal expansion coefficients of the circular chain processing mold is solved, realizing rapid demolding and convenient disassembly, and improving processing efficiency.

CN224487657UActive Publication Date: 2026-07-14SHANDONG ZHONGLIAN MINING MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG ZHONGLIAN MINING MASCH CO LTD
Filing Date
2025-08-11
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Traditional circular chain processing molds suffer from chain links sticking to the mold sleeve due to differences in thermal expansion coefficients, making demolding difficult and affecting the practicality of the equipment.

Method used

The four-piece mold sleeve structure, combined with the limit electric push rod and diamond-like carbon film, enables rapid separation and demolding of the mold, and simplifies the mold disassembly process through quick-release components.

Benefits of technology

It improves demolding efficiency and mold usability, simplifies mold disassembly and assembly, is suitable for processing circular chain of different lengths, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224487657U_ABST
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Abstract

The utility model relates to round link technical field provides a kind of mould for the assembly of round link, including main body, the four corners of main body lower surface are fixedly provided with support, the upper surface of main body is provided with moving part, the upper surface of main body is provided with the frame matched with moving part, the four corners of frame outer surface are fixedly provided with limit electric push rod, the output end of each limit electric push rod is transmissionly provided with mounting block, and the inner angle of each frame is elastically provided with reset spring between mounting block outer surface, the surface of mounting block is provided with four-piece mould cover by quick-release component, four-piece mould cover is made of four groups of mould, the utility model discloses by adopting four-piece mould cover, when stripping, start limit electric push rod and drive mounting block to shrink, mounting block compresses reset spring and drives mould to move to outside, make four groups of mould separate, and realize quick stripping under the cooperation of diamond-like carbon film plating, improve the practicability and stripping efficiency of device.
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Description

Technical Field

[0001] This utility model relates to the field of circular chain technology, and in particular to a mold for assembling circular chains. Background Technology

[0002] Chains are generally metal links or rings, mostly used for mechanical transmission and traction. They are used as chain-like objects to obstruct traffic passages, such as in streets, river or harbor entrances, and mechanical transmission chains. Among the types of chains, circular link chains can be made by flattening and folding iron rods of different thicknesses and sizes.

[0003] For example, CN216096258U discloses a flattening mold for producing circular link chains, comprising a main body, with processing planes fixed on both sides of the upper surface of the main body, a pressing groove formed on the upper surface of the main body on the opposite side of the two processing planes, and positioning grooves formed on both sides of the upper surfaces of the two processing planes. A first sliding plate is slidably mounted on the upper surface of one of the processing planes, and positioning protrusions are fixed on both sides of the bottom end of the first sliding plate. The distance between the first and second sliding plates of the flattening mold for producing circular link chains provided by this utility model needs to be adjusted using a positive thread screw and a negative thread screw. By rotating the positive and negative thread screws to adjust the first and second sliding plates, the distance between them and the pressing groove is always consistent, avoiding the failure of circular link chain production due to inconsistent distances when adjusting their positions.

[0004] However, in the current technology, the traditional circular link chain processing mold usually adopts the method of combining upper and lower molds. Due to the difference in thermal expansion coefficients, the chain links and the mold sleeve stick together, making demolding difficult, which limits the practicality of the device to a certain extent. Utility Model Content

[0005] The purpose of this invention is to solve the problem that in the existing technology, the traditional circular chain processing mold usually adopts a combination of upper and lower molds, and the chain links and the mold sleeve stick together due to the difference in thermal expansion coefficients, making demolding difficult.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a mold for assembling a circular chain, comprising a main body, supports fixedly disposed at the four corners of the lower surface of the main body, a movable component disposed on the upper surface of the main body, a frame for use with the movable component disposed on the upper surface of the main body, limit electric push rods fixedly disposed at the four corners of the outer surface of the frame, a mounting block being driven at the output end of each limit electric push rod, and a return spring being elastically disposed between the inner included angle of each frame and the outer surface of the mounting block, and a four-piece mold sleeve disposed on the surface of the mounting block through a quick-release component, the four-piece mold sleeve being composed of four sets of molds.

[0007] In a preferred embodiment, the moving component includes a slide groove and a mounting groove. The slide groove is symmetrically opened on both sides of the upper surface of the main body, and the mounting groove is opened at the center of the upper surface of the main body. A motor is fixedly installed on the outer wall of the main body.

[0008] In a preferred embodiment, a bidirectional lead screw is driven in the inner cavity of the mounting groove, and one end of the bidirectional lead screw is driven to the output end of the motor. A moving block is driven on the surface of the bidirectional lead screw, and the upper surface of the moving block is fixedly connected to the frame.

[0009] In a preferred embodiment, a slider is slidably disposed in the inner cavity of the groove, and the upper surface of the slider is fixedly connected to the frame.

[0010] In a preferred embodiment, the quick-release component includes a slot and a through hole, the through hole being located at the center of the surface of the mounting block, and the slot being annularly located on the inner sidewall of the mounting block surrounding the through hole.

[0011] In a preferred embodiment, a screw is fitted inside the through hole, and a locking nut is threaded on the surface of the screw, and the two sets of screws are fixedly connected to both ends of the mold.

[0012] In a preferred embodiment, the outer side wall of the mold is symmetrically fixed with insert blocks, and the insert blocks are connected to the slots. The surface of the upper mold is provided with a material injection port, and the inner wall of the mold is provided with a diamond-like carbon film.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] This invention employs a four-piece mold sleeve. During demolding, the limit electric push rod is activated to drive the mounting block to retract. The mounting block compresses the reset spring, causing the mold to move outward, thus separating the four sets of molds. With the cooperation of a diamond-like carbon film coating, rapid demolding is achieved, improving the practicality and demolding efficiency of the device.

[0015] This invention features a quick-release component. When disassembling and maintaining the mold, the locking nut is loosened, and the motor drives the bidirectional lead screw to rotate. The bidirectional lead screw causes the mounting groove to move horizontally along the slide groove, while the mounting groove causes the frame to move in opposite directions. The frame then causes the slider to slide along the guide slide groove, thereby removing the screw from the through hole. At this point, the slot and the insert block separate, completing the disassembly of the mold. The overall structure is simple and easy to operate, enabling the assembly of molds of different lengths and sizes, further improving the practicality of the device. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of a mold for assembling a circular link chain provided by this utility model;

[0017] Figure 2 A three-dimensional side sectional view of a mold for assembling a circular link chain provided by this utility model;

[0018] Figure 3 A side view of the three-dimensional structure of a mold for assembling a circular link chain provided by this utility model;

[0019] Figure 4 A schematic diagram of a four-piece mold sleeve structure for assembling a circular chain provided by this utility model.

[0020] Legend:

[0021] 1. Main body; 2. Support; 3. Motor; 4. Slide groove; 5. Mounting groove; 6. Two-way lead screw; 7. Slider; 8. Moving block; 9. Frame; 10. Limiting electric push rod; 11. Mounting block; 12. Return spring; 13. Slot; 14. Through hole; 15. Mold; 16. Injection port; 17. Insert block; 18. Screw; 19. Locking nut. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4This utility model provides a technical solution: a mold for assembling a circular chain, including a main body 1. Supports 2 are fixedly installed at the four corners of the lower surface of the main body 1. A movable component is installed on the upper surface of the main body 1. A frame 9 for use with the movable component is installed on the upper surface of the main body 1. Limiting electric push rods 10 are fixedly installed at the four corners of the outer surface of the frame 9. A mounting block 11 is driven at the output end of each limiting electric push rod 10. A return spring 12 is elastically installed between the inner included angle of each frame 9 and the outer surface of the mounting block 11. A four-piece mold sleeve is installed on the surface of the mounting block 11 through a quick-release component. The four-piece mold sleeve consists of four sets of molds 15. When demolding, the limiting electric push rods 10 are activated to drive the mounting blocks 11 to retract. The mounting blocks 11 compress the return springs 12 and drive the molds 15 to move outward, so that the four sets of molds 15 separate. With the cooperation of a diamond-like carbon film, rapid demolding is achieved, which improves the practicality of the device and the demolding efficiency.

[0024] like Figure 1-4 As shown, the moving parts include a slide groove 4 and a mounting groove 5. The slide groove 4 is symmetrically opened on both sides of the upper surface of the main body 1, and the mounting groove 5 is opened at the center of the upper surface of the main body 1. A motor 3 is fixedly installed on the outer wall of the main body 1. A bidirectional lead screw 6 is driven in the inner cavity of the mounting groove 5, and one end of the bidirectional lead screw 6 is driven to the output end of the motor 3. A moving block 8 is driven on the surface of the bidirectional lead screw 6, and the upper surface of the moving block 8 is fixedly connected to the frame 9. A slider 7 is slidably installed in the inner cavity of the slide groove 4, and the upper surface of the slider 7 is fixedly connected to the frame 9. The motor 3 drives the bidirectional lead screw 6 to rotate, and the bidirectional lead screw 6 drives the mounting groove 5 to move horizontally along the slide groove 4. The mounting groove 5 drives the frame 9 to move in the opposite direction, and the frame 9 drives the slider 7 to slide along the slide groove 4. This allows for the assembly of molds 15 of different lengths.

[0025] like Figure 1-4 As shown, the quick-release component includes a slot 13 and a through hole 14. The through hole 14 is located at the center of the surface of the mounting block 11. The slot 13 is annularly located on the inner side wall of the mounting block 11, surrounding the through hole 14. A screw 18 is fitted inside the through hole 14. A locking nut 19 is threaded onto the surface of the screw 18. Two sets of screws 18 are fixedly connected to both ends of the mold 15. Insert blocks 17 are symmetrically fixed on the outer side wall of the mold 15 and are inserted into the slot 13. An injection port 16 is provided on the surface of the upper mold 15. The inner wall of the mold 15 is coated with a diamond-like carbon film. When disassembling and maintaining the mold 15, the locking nut 19 is unscrewed, and the screw 18 is removed from the through hole 14. At this time, the slot 13 and the insert block 17 are separated, completing the disassembly of the mold 15. The overall structure is simple and the operation is convenient.

[0026] Working principle: In use, the four sets of molds 15 are first brought together and materials are poured into the injection port 16. After cooling, demolding is performed. During demolding, the limit electric push rod 10 is activated to drive the mounting block 11 to retract. The mounting block 11 compresses the return spring 12, causing the mold 15 to move outward, separating the four sets of molds 15. With the help of the diamond-like carbon film, rapid demolding is achieved. When disassembling and replacing the mold 15, the locking nut 19 is loosened, and the motor 3 drives the bidirectional lead screw 6 to rotate. The bidirectional lead screw 6 drives the mounting groove 5 along the slide groove 4. The horizontal movement of the mounting slot 5 causes the frame 9 to move in the opposite direction. The frame 9 then drives the slider 7 to slide along the guide groove 4, thereby removing the screw 18 from the through hole 14. At this time, the slot 13 separates from the insert block 17, completing the disassembly of the mold 15. The overall structure is simple and easy to operate, and it can assemble molds 15 of different lengths and sizes. The four-piece mold sleeve method for casting and demolding the circular chain mold greatly improves the processing and production efficiency, realizes integrated molding, solves the closed-loop series problem, and is suitable for large-scale promotion.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or equivalent variations to the above-disclosed technical content and apply them to other fields. However, any simple modifications, equivalent variations 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 protection scope of the technical solution of the present utility model.

Claims

1. A mold for assembling a circular chain, comprising a main body (1), characterized in that: Supports (2) are fixedly installed at the four corners of the lower surface of the main body (1). A moving part is installed on the upper surface of the main body (1). A frame (9) for use with the moving part is installed on the upper surface of the main body (1). Limiting electric push rods (10) are fixedly installed at the four corners of the outer surface of the frame (9). A mounting block (11) is driven at the output end of each limiting electric push rod (10). A return spring (12) is elastically installed between the inner included angle of each frame (9) and the outer surface of the mounting block (11). A four-piece mold is installed on the surface of the mounting block (11) through a quick-release component. The four-piece mold consists of four sets of molds (15).

2. The mold for assembling a circular link chain according to claim 1, characterized in that: The moving part includes a slide (4) and a mounting groove (5). The slide (4) is symmetrically opened on both sides of the upper surface of the main body (1), and the mounting groove (5) is opened at the center of the upper surface of the main body (1). A motor (3) is fixedly installed on the outer side wall of the main body (1).

3. The mold for assembling a circular link chain according to claim 2, characterized in that: The inner cavity of the mounting groove (5) is provided with a bidirectional lead screw (6), and one end of the bidirectional lead screw (6) is connected to the output end of the motor (3). The surface of the bidirectional lead screw (6) is provided with a moving block (8), and the upper surface of the moving block (8) is fixedly connected to the frame (9).

4. The mold for assembling a circular link chain according to claim 2, characterized in that: A slider (7) is slidably disposed in the inner cavity of the groove (4), and the upper surface of the slider (7) is fixedly connected to the frame (9).

5. The mold for assembling a circular link chain according to claim 1, characterized in that: The quick-release component includes a slot (13) and a through hole (14). The through hole (14) is located at the center of the surface of the mounting block (11), and the slot (13) is located in a ring shape on the inner wall of the mounting block (11) around the through hole (14).

6. The mold for assembling a circular link chain according to claim 5, characterized in that: The through hole (14) is fitted with a screw (18), and the surface of the screw (18) is threaded with a locking nut (19). The two sets of screws (18) are fixedly connected to both ends of the mold (15).

7. The mold for assembling a circular link chain according to claim 6, characterized in that: The outer side wall of the mold (15) is symmetrically fixed with inserts (17), and the inserts (17) are connected to the slots (13). The surface of the upper mold (15) is provided with a filling port (16), and the inner wall of the mold (15) is provided with a diamond-like carbon film.