Movable mold insert with split combined structure

Abstract

The utility model relates to the technical field of inserts, and discloses a movable mold insert with a split combined structure, which comprises an insert main body, a positioning tenon is fixedly connected to the bottom end of the insert main body, a movable mold main body is arranged on the outer wall of the positioning tenon, a fixing component is connected to the bottom end of the positioning tenon, a grouting pipe is fixedly connected to the inner wall of the movable mold main body, and a grouting pipe is arranged on the inner wall of the grouting pipe. A flow guide pipe is arranged at the top end of the grouting pipe and fixedly connected to the inner wall of the insert body, and a flow dividing groove is formed in the inner wall of the insert body and formed in the top end of the flow guide pipe. According to the utility model, the threaded connection of the bottom screw and the nut provides a fixing force in the vertical direction, and the clamping of the side fixing block and the fixing groove provides a limiting force in the horizontal direction, so that a vertical and horizontal dual-fixing mechanism is formed, and the insert main body can be independently replaced; and two products can be simultaneously formed through one-time injection molding.

Description

A modular insert with a split-assembly structure Technical Field

[0001] This utility model relates to the field of insert technology, and in particular to a movable mold insert with a split-combination structure. Background Technology

[0002] In the mold manufacturing field, modular moving mold inserts are widely used in the mass production of plastic and rubber products due to their advantages such as detachable maintenance and multi-cavity molding. These inserts, through modular design, disassemble complex cavities into independent components, which not only reduces processing difficulty but also allows for quick mold repair by replacing individual inserts, significantly improving production efficiency. However, there is still room for improvement in the fixing method and molding efficiency of existing moving mold inserts.

[0003] Traditional moving mold inserts are mostly fixed with a single bolt, providing only vertical constraint. During injection molding, the insert is prone to displacement due to lateral pressure generated by melt flow, leading to defects such as cavity dimensional deviations or flash. Furthermore, disassembling the fixed structure requires specialized tools and is cumbersome. When the insert is partially worn, overall disassembly and maintenance can cause significant downtime. To address these technical problems, this application proposes a movable mold insert with a split-assembly structure. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a movable mold insert with a split combination structure. The threaded connection between the bottom screw and the nut provides a vertical fixing force, and the engagement between the side fixing block and the fixing groove provides a horizontal limiting force, forming a dual fixing mechanism of vertical and horizontal. The insert body can be replaced separately. Through the design of the injection pipe, the guide pipe, the diversion groove and the two cavities in the insert body, two products can be molded at the same time in one injection.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A movable mold insert with a split-assembly structure includes an insert body. A positioning tenon is fixedly connected to the bottom end of the insert body. The movable mold body is disposed on the outer wall of the positioning tenon. A fixing component is connected to the bottom end of the positioning tenon. A grouting pipe is fixedly connected to the inner wall of the movable mold body. A guide pipe is disposed at the top end of the grouting pipe. The guide pipe is fixedly connected to the inner wall of the insert body. A flow-dividing groove is opened on the inner wall of the insert body. The flow-dividing groove is disposed at the top end of the guide pipe. Rotating rods are rotatably connected to the inner walls of the left and right sides of the movable mold body. The two rotating rods are connected to the insert body at their closest ends through a locking component.

[0007] Furthermore, the engaging assembly includes threaded rods located at the near ends of the two rotating rods, and the outer walls of the two threaded rods are connected to fixing blocks by threaded sleeves. The two fixing blocks are both set in fixing grooves opened at the left and right ends of the insert body.

[0008] Furthermore, the fixing component includes a screw located at the bottom end of the positioning tenon, the screw being disposed on the inner wall of the moving mold body, and a nut being threadedly connected to the outer wall of the screw, the nut being disposed on the inner wall of the moving mold body.

[0009] Furthermore, a sealing ring is fixedly connected to the top of the grouting pipe, and the sealing ring is located at the bottom of the guide pipe.

[0010] Furthermore, each of the two rotating rods has a knob fixedly connected to one end, and both knobs are rotatably connected to the outer wall of the moving mold body.

[0011] Furthermore, the sealing ring is made of fluororubber.

[0012] Furthermore, a washer is fixedly connected to the top of the nut.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the threaded connection between the bottom screw and the nut provides a vertical fixing force, and the engagement between the side fixing block and the fixing groove provides a horizontal limiting force, forming a dual fixing mechanism of vertical and horizontal. When the main body of the insert is partially worn or damaged, it is not necessary to disassemble the entire moving mold. Only the nut and the knob need to be loosened to replace the main body of the insert separately, which greatly shortens the maintenance time and reduces the mold maintenance cost. It is especially suitable for mass production scenarios that require frequent replacement of mold parts.

[0015] 2. In this utility model, the design of two cavities in the injection pipe, guide pipe, diversion groove and insert body enables the simultaneous molding of two products in one injection. Compared with traditional single-cavity molds, it can improve production efficiency, reduce energy consumption per unit product and reduce mold usage costs, and is suitable for mass production of symmetrical parts. Attached Figure Description

[0016] Figure 1 is a perspective view of a movable mold insert with a split-combination structure proposed in this utility model;

[0017] Figure 2 is a schematic diagram of the grouting pipe structure of a movable mold insert with a split-combination structure proposed in this utility model;

[0018] Figure 3 is a schematic diagram of the fixed block structure of the moving mold insert with a split combination structure proposed in this utility model;

[0019] Figure 4 is an enlarged view of point A in Figure 3.

[0020] Legend:

[0021] 1. Inlay body; 2. Positioning tenon; 3. Screw; 4. Nut; 5. Moving mold body; 6. Guide pipe; 7. Grouting pipe; 8. Rotating rod; 9. Threaded rod; 10. Fixing block; 11. Knob; 12. Sealing ring; 13. Fixing groove; 14. Diversion groove. 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] Referring to Figures 1-3, one embodiment of this utility model is provided: a movable mold insert with a split-combination structure, including an insert body 1, a positioning tenon 2 fixedly connected to the bottom end of the insert body 1, a movable mold body 5 provided on the outer wall of the positioning tenon 2, a screw 3 connected to the bottom end of the positioning tenon 2, a grouting pipe 7 fixedly connected to the inner wall of the movable mold body 5, a guide pipe 6 provided at the top end of the grouting pipe 7, the guide pipe 6 fixedly connected to the inner wall of the insert body 1, a flow-dividing groove 14 opened on the inner wall of the insert body 1, the flow-dividing groove 14 is located at the top end of the guide pipe 6, and rotating rods 8 are rotatably connected to the inner walls of the left and right sides of the movable mold body 5, and the two rotating rods 8 are connected to the insert body 1 through a threaded rod 9, a fixing block 10 and a fixing groove 13 at their closest ends;

[0024] Specifically, molten plastic raw materials, such as high-temperature plastic melt or rubber compound, are injected into the injection pipe 7 through external equipment. The raw material enters the guide pipe 6 through the top of the injection pipe 7. Since the guide pipe 6 is connected to the distribution channel 14, the raw material flows into the distribution channel 14 under pressure. The distribution channel 14 and the guide pipe 6 form a T-shaped channel, which can evenly distribute the raw material to the two molding cavities inside the insert body 1. When it is necessary to install the insert body 1 into the moving mold body 5, the positioning tenon 2 and the screw 3 at the bottom of the insert body 1 are aligned with the groove and screw hole at the bottom of the moving mold body 5, and vertically inserted until the positioning tenon 2 is fully embedded in the groove. At this time, the insert body 1 is initially fixed in the moving mold body 5, and the bottom of the guide pipe 6 is aligned with the top of the injection pipe 7. When the sealing rings 12 between the two are pressed together, a sealed connection is formed. Using a tool, the nut 4 is rotated clockwise along the screw 3 until the washer at the top of the nut 4 is pressed tightly against the inner wall of the moving mold body 5. Through the threaded engagement of the screw 3 and the nut 4, the bottom of the insert body 1 is initially fixed to prevent it from moving up and down. Manually rotate the knob 11 in the opposite direction to drive the rotating rod 8 and the threaded rod 9 to rotate counterclockwise. The fixing block 10 moves axially inward along the threaded rod 9 until it is completely inserted into the fixing grooves 13 on both sides of the insert body 1. At this time, the side of the fixing block 10 is tightly pressed against the inner wall of the fixing groove 13, forming a lateral limit on the insert body 1, completing the secondary fixation and ensuring that the insert body 1 will not be displaced due to lateral pressure during the injection molding process.

[0025] Referring to Figures 2-4, the threaded rods 9 are located at the ends of the two rotating rods 8 that are close to each other. The outer walls of the two threaded rods 9 are connected to the fixing blocks 10 by threaded sleeves. The two fixing blocks 10 are set in the fixing grooves 13 opened at the left and right ends of the insert body 1. The screw 3 is located at the bottom end of the positioning tenon 2. The screw 3 is set in the inner wall of the moving mold body 5. The outer wall of the screw 3 is threaded with the nut 4. The nut 4 is set in the inner wall of the moving mold body 5. The top end of the grouting pipe 7 is fixedly connected with the sealing ring 12. The sealing ring 12 is set in the bottom end of the guide pipe 6. The two rotating rods 8 are fixedly connected with the knobs 11 at the ends that are far apart. The two knobs 11 are rotatably connected to the outer wall of the moving mold body 5. The sealing ring 12 is made of fluororubber. The top end of the nut 4 is fixedly connected with the gasket.

[0026] Specifically, when it is necessary to disassemble the insert body 1 from the moving mold body 5, use a tool to rotate the nut 4 counterclockwise along the screw 3 to remove it, thus releasing the nut 4 from the screw 3 and releasing the bottom fixing constraint on the positioning tenon 2. Manually rotate the knob 11 at the end of the rotating rod 8 to rotate the rotating rod 8 clockwise. The threaded rod 9 at the front end of the rotating rod 8 will rotate accordingly. Since the fixing block 10 is connected to the threaded rod 9 through the threaded sleeve, and the fixing block 10 is restricted from rotating by the inner wall of the fixing groove 13, the rotation of the threaded rod 9 will push the fixing block 10 to move outward along the axial direction of the threaded rod 9 until the fixing block 10 is completely separated from the insert body. The fixing grooves 13 on both sides of the body 1 release the side limit of the insert body 1. After the bottom and side fixation is released, the insert body 1 can be lifted directly upwards. The positioning tenon 2 at its bottom end will disengage from the groove of the moving mold body 5, thus achieving separation of the two. The sealing ring 12 is made of fluororubber, which can ensure the sealing of the connection between the grouting pipe 7 and the guide pipe 6 and prevent raw material leakage. The nut 4 cooperates with the screw 3. By tightening the nut 4, the gasket is pressed against the surface of the moving mold body 5, which enhances the fixing friction and prevents the nut 4 from loosening. The gasket can distribute the pressure and prevent the surface of the moving mold body 5 from being damaged due to excessive local force.

[0027] Working principle: When it is necessary to disassemble the moving mold body 5 and the insert body 1, first use a tool to unscrew the nut 4 from the screw 3 and place it in a suitable position. Then, turn the knob 11, which drives the threaded rod 9 to rotate through the rotating rod 8. Under the action of the threaded sleeve inside the fixing block 10, the rotation of the threaded rod 9 will drive the fixing block 10 to move, causing the fixing block 10 to disengage from the fixing groove 13, thereby removing the limitation on the insert body 1. Then, the insert body 1 can be disassembled from the moving mold body 5. When it is necessary to install the insert body 1 into the moving mold body 5, align the positioning tenon 2 and the screw 3 on the insert body 1 with the groove of the moving mold body 5 and insert them. The insert body 1 is positioned, and at this time, the guide pipe 6 and the grouting pipe 7 are connected by the sealing ring 12. Then, the nut 4 is taken out and rotated onto the screw 3 with a tool to initially fix the insert body 1. Then, the knob 11 is rotated in the opposite direction, which drives the threaded rod 9 to rotate through the rotating rod 8. Under the action of the threaded sleeve, the fixing block 10 is moved to the fixing groove 13 to fix the insert body 1 for a second time. When the mold casting begins, the plastic raw material is injected into the grouting pipe 7, and then flows into the guide pipe 6. Finally, it is divided by the diversion groove 14 so that the plastic raw material flows into the two cavities in the insert body 1 for molding.

[0028] 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 movable mold insert with a split-assembly structure, characterized in that: The device includes a main body (1), a positioning tenon (2) fixedly connected to the bottom end of the main body (1), a moving mold body (5) provided on the outer wall of the positioning tenon (2), a fixing component connected to the bottom end of the positioning tenon (2), a grouting pipe (7) fixedly connected to the inner wall of the moving mold body (5), a guide pipe (6) provided at the top end of the grouting pipe (7), the guide pipe (6) fixedly connected to the inner wall of the main body (1), a flow divider groove (14) opened on the inner wall of the main body (1), the flow divider groove (14) is located at the top end of the guide pipe (6), and rotating rods (8) are rotatably connected to the inner walls of the left and right sides of the moving mold body (5), and the two rotating rods (8) are connected to the main body (1) at their closest ends through a locking component.

2. A split modular die insert according to claim 1, wherein: The engaging assembly includes a threaded rod (9) located at one end close to the two rotating rods (8). The outer walls of the two threaded rods (9) are connected to a fixing block (10) by a threaded sleeve. The two fixing blocks (10) are both set in the fixing grooves (13) opened at the left and right ends of the insert body (1).

3. The split composite structure die insert of claim 1, wherein: The fixing component includes a screw (3) located at the bottom end of the positioning tenon (2), the screw (3) being disposed on the inner wall of the moving mold body (5), and a nut (4) being threadedly connected to the outer wall of the screw (3), the nut (4) being disposed on the inner wall of the moving mold body (5).

4. The split composite structure die insert of claim 1 wherein: A sealing ring (12) is fixedly connected to the top end of the grouting pipe (7), and the sealing ring (12) is set at the bottom end of the guide pipe (6).

5. The split composite structure die insert of claim 1 wherein: Both of the two rotating rods (8) are fixedly connected to a knob (11) at one end, and both knobs (11) are rotatably connected to the outer wall of the moving mold body (5).

6. A split die insert according to claim 4, wherein: The sealing ring (12) is made of fluororubber.

7. The split die assembly of claim 3 wherein: A washer is fixedly connected to the top of the nut (4).

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