Split plastic injection mold frame

By using a split-type injection mold frame design, with a detachable frame and mold body, and by utilizing limit baffles and adjustment components, the problem of difficult maintenance of integral mold frames is solved, enabling rapid repair and simplified maintenance.

CN224545133UActive Publication Date: 2026-07-24XUANCHENG LONGHUA ELECTRON CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XUANCHENG LONGHUA ELECTRON CO LTD
Filing Date
2025-06-09
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing injection mold frame adopts an integral structure, which requires the entire mold frame to be disassembled during maintenance, increasing downtime and maintenance difficulty.

Method used

It adopts a split design, including a detachable frame and a mold body. It can be quickly disassembled and installed through limit baffles and adjustment components. The position of the limit baffles is controlled by a combination of springs, fixed pulleys and traction ropes, simplifying the maintenance process.

Benefits of technology

It enables rapid replacement and repair, reduces maintenance time, simplifies the repair process, and facilitates individual upgrades or modifications of specific parts.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a split type plastic injection mold frame, including detachable cooperation's frame body and mould body, the cooperation groove of frame body embedding is set up on the mould body, the movable setting of vertical limit baffle is equipped on the mould body, limit baffle restricts frame body to leave cooperation groove or does not influence frame body to leave cooperation groove, still include adjusting assembly, adjusting assembly with limit baffle links to each other, adjusting assembly controls limit baffle position state. The utility model discloses a detachable cooperation's frame body and mould body can realize quick replacement and maintenance, when the wear and tear or damage of certain part, can replace rapidly, need not long time shutdown, reduced maintenance time, and the design of split modularization makes each component independent manufacturing, simplifies maintenance process, also is convenient for individual upgrading or reformation specific part.
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Description

Technical Field

[0001] This utility model belongs to the field of plastic injection molding technology, and particularly relates to a split plastic injection mold frame. Background Technology

[0002] Plastic injection molding frames, such as those used to produce cable ties, are pieces of equipment specifically designed to mold plastic products. In the injection molding process, molten plastic material is poured into the mold cavity within the mold frame, where it cools and solidifies to form the desired plastic product.

[0003] In the existing technology, injection mold bases usually adopt an integral structure. If a part of the integral mold base has a problem (such as wear or damage), the entire mold base often needs to be disassembled for repair, which increases downtime and maintenance difficulty. Utility Model Content

[0004] This utility model addresses the problems in the prior art by proposing the following technical solution:

[0005] This utility model provides a split-type plastic injection mold frame, including:

[0006] Demountable and modular frame and mold body;

[0007] The mold body is provided with a mating groove for the frame body to be inserted, and a vertical limiting baffle is movably provided on the mold body. The limiting baffle restricts the frame body from leaving the mating groove or does not affect the frame body leaving the mating groove.

[0008] It also includes an adjustment component, which is connected to the limiting baffle and controls the position of the limiting baffle.

[0009] As a preferred embodiment of the above technical solution, the adjustment component includes a receiving groove on the mold body for the insertion of a limiting baffle. A spring is provided in the receiving groove to connect the limiting baffle and the inner wall of the receiving groove. The adjustment component also includes an installation cavity on the mold body. A fixed pulley is provided in the installation cavity and at a position corresponding to the upper part of the limiting baffle. A control slider is slidably arranged in the installation cavity. A traction rope is provided at one end of the control slider near the fixed pulley. The other end of the traction rope passes around the fixed pulley and is fixedly connected to the limiting baffle.

[0010] As a preferred embodiment of the above technical solution, a partition is provided inside the mounting cavity, the traction rope passes through the partition, a protruding force-applying rod is extended from the front side of the control slider, and a limiting hook is rotatably provided on the front end face of the mold body.

[0011] As a preferred embodiment of the above technical solution, the frame and mold body are symmetrically arranged in two groups, namely a fixed group and a movable group.

[0012] As a preferred embodiment of the above technical solution, the end of the mold body of the fixed group and the moving group that is close to each other is the mold cavity end. The mating groove of the mold body is also provided with a recessed relief groove. A driving component is provided on the frame body at the position corresponding to the relief groove. The driving component is located in the relief groove, and the output end of the driving component is connected to the mold cavity of the mold body.

[0013] As a preferred embodiment of the above technical solution, it further includes a guide post that runs through the frame and the mold body, wherein the fixed frame and mold body are fixedly engaged with the guide post, and the movable frame and mold body are slidably engaged with the guide post.

[0014] The beneficial effects of this utility model are as follows:

[0015] This utility model enables rapid replacement and maintenance through a detachable and compatible frame and mold body. When a component is worn or damaged, it can be quickly replaced without long downtime, reducing maintenance time. The modular design allows each component to be manufactured independently, simplifying the maintenance process and facilitating the individual upgrading or modification of specific parts. Attached Figure Description

[0016] Figure 1 The diagram shown is a front view of the injection mold frame in the embodiment (limiting baffle state one);

[0017] Figure 2 What is shown is Figure 1 A partial sectional view of the injection mold frame;

[0018] Figure 3 What is shown is Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;

[0019] Figure 4 The diagram shown is a front view of the injection mold frame in the embodiment (limiting baffle state two);

[0020] Figure 5 What is shown is Figure 4 Enlarged schematic diagram of the structure at point B in the diagram;

[0021] Figure 6 The diagram shown is a partial sectional view of the injection mold base (limiting baffle state two);

[0022] Figure 7 What is shown is Figure 4 A top view of the engagement between the middle limit baffle and the limiting hook;

[0023] Reference numerals: 10, frame; 20, mold body; 11, driving component; 21, clearance groove; 30, limit baffle; 40, adjusting component; 41, receiving groove; 42, spring; 43, mounting cavity; 44, partition; 45, control slider; 46, traction rope; 47, fixed pulley; 48, force application rod; 49, limiting hook; 50, guide column. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0025] Example

[0026] like Figure 1 , Figure 4 As shown, Figure 1 The diagram shown is a front view of the injection mold frame in the embodiment (limiting baffle state one); Figure 4 The diagram shown is a front view of the injection mold frame in the embodiment (limiting baffle state two);

[0027] This device includes:

[0028] The frame 10 and mold body 20 are detachable and can be joined together.

[0029] The mold body 20 has a mating groove for the frame body 10 to be inserted into, and a vertical limiting baffle 30 is movably provided on the mold body 20. The limiting baffle 30 restricts the frame body 10 from leaving the mating groove or does not affect the frame body 10 from leaving the mating groove.

[0030] It also includes an adjustment component 40, which is connected to the limit baffle 30 and controls the position of the limit baffle 30.

[0031] The detachable and compatible frame 10 and mold body 20 enable quick replacement and maintenance. When a component is worn or damaged, it can be quickly replaced without long downtime, reducing maintenance time. The modular design allows each component to be manufactured independently, simplifying the maintenance process and facilitating the individual upgrading or modification of specific parts.

[0032] Figure 1 The diagram shows the first state of the limiting baffle 30, where the limiting baffle 30 is extended. In this state, the limiting baffle 30 blocks the opening of the mating groove, thereby preventing the frame 10 from leaving the mating groove and ensuring the stability of the installation state between the frame 10 and the mold body 20.

[0033] Figure 4The image shows the second state of the limiting baffle 30, that is, the limiting baffle 30 is in the retracted state. In this state, the limiting baffle 30 does not block the opening of the mating groove. At this time, it is in the detachable state, and the frame 10 and the mold body 20 can be quickly separated and disassembled.

[0034] Adjustment component 40 controls the position switching (extend / retract) of limit baffle 30.

[0035] like Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 As shown, Figure 2 What is shown is Figure 1 A partial sectional view of the injection mold frame; Figure 3 What is shown is Figure 2 Enlarged schematic diagram of the structure at point A in the diagram; Figure 5 What is shown is Figure 4 Enlarged schematic diagram of the structure at point B in the diagram; Figure 6 The diagram shown is a partial sectional view of the injection mold base (limiting baffle state two); Figure 7 What is shown is Figure 4 A top view of the engagement between the middle limit baffle and the limiting hook;

[0036] The adjustment assembly 40 includes a receiving groove 41 on the mold body 20 for the insertion of the limiting baffle 30. A spring 42 is provided in the receiving groove 41 to connect the limiting baffle 30 and the inner wall of the receiving groove 41. The adjustment assembly 40 also includes an installation cavity 43 on the mold body 20. A fixed pulley 47 is provided in the installation cavity 43 and at a position corresponding to the upper part of the limiting baffle 30. A control slider 45 is slidably arranged in the installation cavity 43. A traction rope 46 is provided at one end of the control slider 45 near the fixed pulley 47. The other end of the traction rope 46 passes around the fixed pulley 47 and is fixedly connected to the limiting baffle 30.

[0037] The receiving groove 41 provides a space for the limiting baffle 30 to be inserted. The function of the spring 42 is to provide elastic force to help the limiting baffle 30 maintain the extended state without external force. When it is necessary to retract the limiting baffle 30, the elastic force of the spring 42 can be overcome by moving the control slider 45. The function of the fixed pulley 47 is to change the direction of the traction rope 46 so that the limiting baffle 30 can be effectively pulled by pulling the control slider 45.

[0038] The operator moves the control slider 45 and uses the combination of the traction rope 46 and the fixed pulley 47 to overcome the elastic force of the spring 42 and pull the limit baffle 30 back into the receiving groove 41, thereby releasing the opening of the mating groove. At this time, the frame 10 can be removed and disassembled.

[0039] A partition 44 is provided inside the mounting cavity 43, and a traction rope 46 passes through the partition 44. A protruding force bar 48 is also provided on the front side of the control slider 45, and a limiting hook 49 is also rotatably provided on the front end face of the mold body 20.

[0040] The partition 44 restricts the sliding path of the control slider 45. The force bar 48 provides a convenient operating point for the operator. By holding the force bar 48, the control slider 45 can be pushed or pulled more easily. The limiting hook 49 locks the position of the control slider 45 and keeps the limit baffle 30 in the retracted state, which facilitates the installation process of the frame 10 entering the mating groove.

[0041] The working principle of the limit baffle 30 and the adjustment component 40 is as follows:

[0042] Default state (limiting baffle 30 extended): Spring 42 is in a naturally extended state in the receiving groove 41, pushing the limiting baffle 30 to extend outward, thereby preventing the frame 10 from leaving the mating groove. One end of the traction rope 46 is fixed to the limiting baffle 30, and the other end is connected to the control slider 45 through the fixed pulley 47. The traction rope 46 passes through the partition 44 to maintain a stable path.

[0043] Disassembly and assembly process (limiting baffle 30 retracts): The operator moves the control slider 45 by pulling or pushing the force bar 48, which causes the traction rope 46 to drive the limiting baffle 30 to retract inward against the elastic force of the spring 42.

[0044] During operation, the position of the control slider 45 can be locked. The position of the control slider 45 can be locked by rotating the limiting hook 49, so that the limit baffle 30 is kept in a retracted state, which makes it easier for the frame 10 to enter the mating groove during installation.

[0045] like Figure 1 As shown, Figure 1 The diagram shown is a front view of the injection mold frame in the embodiment (limiting baffle state one);

[0046] The frame 10 and the mold body 20 are symmetrically arranged in two groups, namely a fixed group and a movable group;

[0047] The mold body 20 of the fixed group and the moving group are close to each other at one end, which is the mold cavity end. The mold body 20 is also provided with a recessed relief groove 21 in the mating groove. The frame 10 is provided with a driving member 11 at the position corresponding to the relief groove 21. The driving member 11 is located in the relief groove 21, and the output end of the driving member 11 is connected to the mold cavity of the mold body 20.

[0048] It also includes a guide column 50 that runs through the frame 10 and the mold body 20. The fixed frame 10 and the mold body 20 are fixedly engaged with the guide column 50, and the movable frame 10 and the mold body 20 are slidably engaged with the guide column 50.

[0049] When the mold cavity ends of the fixed group and the moving group come close to each other, the mold is closed. The mold cavity is used to mold plastic parts. The output end of the drive component 11 is connected to the mold cavity of the mold body 20. The drive component 11 is usually used to push the parts inside the mold body 20 (i.e. eject the product) to ensure the smooth demolding of the product.

[0050] The frame 10 and mold body 20 of the moving assembly can move precisely linearly along the guide post 50 to achieve mold opening and closing operations.

[0051] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A split-type plastic injection mold frame, characterized in that, include: Detachable and compatible frame (10) and mold body (20); The mold body (20) is provided with a mating groove for the frame body (10) to be inserted. A vertical limiting baffle (30) is movably provided on the mold body (20). The limiting baffle (30) restricts the frame body (10) from leaving the mating groove or does not affect the frame body (10) from leaving the mating groove. It also includes an adjustment component (40), which is connected to the limiting baffle (30) and controls the position state of the limiting baffle (30).

2. The split-type plastic injection mold frame according to claim 1, characterized in that, The adjustment assembly (40) includes a receiving groove (41) on the mold body (20) for the insertion of the limiting baffle (30). A spring (42) is provided in the receiving groove (41) to connect the limiting baffle (30) and the inner wall of the receiving groove (41). The adjustment assembly (40) also includes an installation cavity (43) on the mold body (20). A fixed pulley (47) is provided in the installation cavity (43) and at a position above the limiting baffle (30). A control slider (45) is slidably arranged in the installation cavity (43). A traction rope (46) is provided at one end of the control slider (45) near the fixed pulley (47). The other end of the traction rope (46) passes around the fixed pulley (47) and is fixedly connected to the limiting baffle (30).

3. The split-type plastic injection mold frame according to claim 2, characterized in that, A partition (44) is provided inside the mounting cavity (43), the traction rope (46) passes through the partition (44), a protruding force bar (48) extends from the front side of the control slider (45), and a limiting hook (49) is rotatably provided on the front end face of the mold body (20).

4. The split-type plastic injection mold frame according to claim 1, characterized in that, The frame (10) and mold body (20) are symmetrically arranged in two groups, namely a fixed group and a movable group.

5. The split-type plastic injection mold frame according to claim 4, characterized in that, The mold body (20) of the fixed group and the moving group are close to each other at one end, which is the mold cavity end. The mold body (20) is also provided with a recessed relief groove (21) in the mating groove. The frame (10) is provided with a driving member (11) at the position corresponding to the relief groove (21). The driving member (11) is located in the relief groove (21), and the output end of the driving member (11) is connected to the mold cavity of the mold body (20).

6. The split-type plastic injection mold frame according to claim 5, characterized in that, It also includes a guide post (50) that runs through the frame (10) and the mold body (20). The fixed frame (10) and the mold body (20) are fixedly engaged with the guide post (50), and the movable frame (10) and the mold body (20) are slidably engaged with the guide post (50).