Auxiliary demolding mechanism for injection mold

By introducing an electric telescopic rod and a motor-driven lead screw structure into the injection mold, the problem of plastic product adhesion is solved, enabling rapid demolding and simplified material handling, thus improving the efficiency of the injection mold.

CN223720090UActive Publication Date: 2025-12-26HEFEI JUTENG MOLDING CO LTD
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Patent Information

Application Number
CN202520220501.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-12
Publication Date
2025-12-26
Estimated Expiration
2035-02-12

AI Technical Summary

Technical Problem

Existing injection molds are prone to causing plastic products to stick together after molding. The lack of an effective demolding mechanism makes it difficult to remove the material and affects normal use.

Method used

The system uses a No. 1 and No. 2 electric telescopic rods in conjunction with a motor and a lead screw to achieve automatic demolding of plastic products through a mechanical structure. The motor drives the lead screw to move the slide plate and the moving plate, which, in addition to the movement of the support plate, enables rapid demolding.

Benefits of technology

It enables rapid demolding of plastic products, simplifies material handling, and improves the efficiency of injection molds.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an auxiliary demoulding mechanism for an injection mould, which relates to the technical field of injection moulds and comprises a lower mould and an upper mould, a mould groove is arranged on one side surface of the lower mould, a first electric telescopic rod is fixed on one side surface of the upper mould, one end of the first electric telescopic rod is fixedly connected with the lower mould, and the other end of the first electric telescopic rod is fixedly connected with the lower mould. A second electric telescopic rod extends to drive a connecting plate and a bearing plate to integrally move upwards, a formed plastic product is supported to move upwards together with the help of the bearing plate, the plastic product is rapidly demolded from a mold groove, and then a sliding plate and a moving plate are driven to move towards the outer side of a lower mold with the help of a motor and a lead screw; and then a second electric telescopic rod, a connecting plate and a bearing plate are driven to move towards the outer side, the bearing plate moves relative to the plastic product, the plastic product is rapidly demolded from the bearing plate, and then workers can conveniently and rapidly take the formed plastic product.
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Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field especially relates to a kind of auxiliary demolding mechanism for injection mold. BACKGROUND

[0002] Injection mold is a kind of tool for plastic injection molding process, mainly used for manufacturing various plastic products. It forms the required plastic product by injecting heated molten plastic into the cavity of the mold, and then cooling and solidifying. Injection mold plays a vital role in industrial production, and is widely used in the fields of automobile, medical equipment, electronics, home appliances, toys, etc.

[0003] However, in the prior art, after using the existing injection mold to injection mold plastic, the plastic product may be stuck in the mold groove of the injection mold. Most injection molds generally lack auxiliary demolding mechanism for plastic products, which may cause difficulty in taking material from the mold groove, affecting the normal use of the injection mold. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art: after using the injection mold to injection mold plastic, the plastic product may be stuck in the mold groove of the injection mold. Most injection molds generally lack auxiliary demolding mechanism for plastic products, which may cause difficulty in taking material from the mold groove, affecting the normal use of the injection mold.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: an auxiliary demolding mechanism for injection mold, comprising a lower mold and an upper mold, a mold groove is formed on one side surface of the lower mold, a No. 1 electric telescopic rod is fixed on one side surface of the upper mold, and one end of the No. 1 electric telescopic rod is fixedly connected with the lower mold, supporting plates are embedded and installed on both sides of the mold groove in the lower mold, and a connecting plate is fixed on one side of the supporting plate, the connecting plate is embedded and connected with the lower mold, a No. 2 electric telescopic rod is fixedly connected on one side surface of the connecting plate, a moving plate is fixedly connected on one end of the No. 2 electric telescopic rod, a sliding plate is fixed on one end surface of the moving plate, and the sliding plate is slidingly connected with the lower mold, a fixed plate is fixed on the front side surface of the lower mold, a motor is fixed on one side of the fixed plate, a lead screw is fixed on the output end of the motor, and the lead screw is rotatably penetrated through the fixed plate and threadedly connected with the sliding plate.

[0006] As a preferred embodiment, a positioning rod is fixedly connected on the upper surface of the lower mold at four corners, and the positioning rod is slidingly connected with the upper mold.

[0007] As a preferred embodiment, a limiting disc is fixedly connected on one end of the positioning rod.

[0008] As a preferred implementation, the four corners of the lower surface of the lower mold are fixedly connected with the foot pads.

[0009] Compared with the prior art, the utility model has the advantages and positive effects that:

[0010] The utility model discloses, when plastic product is formed in the mould groove, the integral upper mould is lifted through the extension of no. 1 electric telescopic link, then the integral upper mould is lifted through the extension of no. 2 electric telescopic link, and the mould is removed from the mould groove, and then the slide and the moving plate are moved to the outside of the lower mould through the help of motor and screw rod, and then no. 2 electric telescopic link, connecting plate and support plate are moved to the outside, make support plate move relative to plastic product, make plastic product fast from support plate demoulding, and then conveniently let the staff to the plastic product of forming fast take the material operation. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 The utility model provides an overall front side structure diagram of the auxiliary demolding mechanism for injection mold,

[0012] Fig. 2 The utility model provides an overall rear side structure diagram of the auxiliary demolding mechanism for injection mold,

[0013] Fig. 3 The utility model provides an overall rear side structure diagram of the auxiliary demolding mechanism for injection mold,

[0014] LEGEND:

[0015] 1, lower mould, 2, upper mould, 3, mould groove, 4, no. 1 electric telescopic link, 5, positioning rod, 6, limit disc, 7, support plate, 8, connecting plate, 9, no. 2 electric telescopic link, 10, moving plate, 11, slide, 12, fixed plate, 13, motor, 14, screw rod, 15, foot pad. DETAILED DESCRIPTION

[0016] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0017] Embodiment 1

[0018] As Figs. 1-3As shown, the utility model provides a kind of technical scheme: a kind of auxiliary demolding mechanism for injection mold, including lower mould 1 and upper mould 2, the side surface of lower mould 1 is equipped with mould groove 3, the side surface of this upper mould 2 is fixed with electric telescopic rod 4 No., and the one end of electric telescopic rod 4 No. is fixed with lower mould 1, by making electric telescopic rod 4 No. stretch out and retract, it plays the operation of control upper mould 2 and move up or descend, the both sides of mould groove 3 in lower mould 1 are embedded and installed with support plate 7, and the side of support plate 7 is fixed with connecting plate 8, the connecting plate 8 is embedded and connected with lower mould 1, the side surface of connecting plate 8 is fixedly connected with electric telescopic rod 9 No. 2, after plastic product is shaped in mould groove 3, by electric telescopic rod 4 No. 2 is lifted, there is certain space between lower mould 1 and upper mould 2, then by the extension of electric telescopic rod 9 No. 2 drives connecting plate 8 and support plate 7 and moves up as a whole, by the help of support plate 7, plastic product is lifted together, so that plastic product is quickly demoulded from mould groove 3, and the one end of electric telescopic rod 9 No. 2 is fixedly connected with moving plate 10, the one end surface of moving plate 10 is fixed with sliding plate 11, and sliding plate 11 is slidably connected with lower mould 1, the front side surface of lower mould 1 is fixed with fixed plate 12, and the side of fixed plate 12 is fixed with motor 13, the output end of motor 13 is fixed with lead screw 14, and lead screw 14 is rotatably penetrated through fixed plate 12 and is threadedly connected with sliding plate 11, after plastic product is demoulded from mould groove 3, by the help of motor 13 and lead screw 14, sliding plate 11 and moving plate 10 are moved to the outside of lower mould 1, and then drive electric telescopic rod 9 No. 2, connecting plate 8 and support plate 7 to move to the outside, so that support plate 7 moves relative to plastic product, so that plastic product is quickly demoulded from support plate 7.

[0019] Example 2

[0020] As Figs. 1-3 shown, the four corners of the upper surface of lower mould 1 are fixedly connected with positioning rod 5, and the positioning rod 5 is slidably connected with the upper mould 2, the positioning rod 5 plays a positioning role when the upper mould 2 moves up and down, improves the accuracy of the upper mould 2 and the lower mould 1 when they are connected, the one end of the positioning rod 5 is fixedly connected with the limiting disc 6, the limiting disc 6 plays a limiting role when the upper mould 2 moves on the positioning rod 5, avoids the upper mould 2 from being disconnected with the positioning rod 5 when it moves up, the four corners of the lower surface of the lower mould 1 are fixedly connected with the foot block 15, the foot block 15 plays a role of lifting the lower mould 1 as a whole, makes the moving plate 10 in a suspended state, facilitates the smooth movement of the moving plate 10.

[0021] Working principle:

[0022] As Figs. 1-3As shown, when the plastic product is formed in the mold groove 3, the user first controls the first electric telescopic rod 4 to extend, so that the upper mold 2 moves upward along the positioning rod 5 as a whole, and stops moving when the upper mold 2 moves to the limiting disc 6, at this time, the lower mold 1 and the upper mold 2 leave a certain space, then the second electric telescopic rod 9 is extended to drive the supporting plate 7 and the connecting plate 8 to move upward, the supporting plate 7 also supports the plastic product to move together when moving, so that the plastic product is quickly taken out from the mold groove 3, then the motors 13 on both sides of the lower mold 1 are controlled to start at the same time to drive the two lead screws 14 to rotate in opposite directions, so that the two sliding plates 11 slide to the outside of the lower mold 1, the sliding of the sliding plate 11 drives the movement of the moving plate 10, the second electric telescopic rod 9, the connecting plate 8 and the supporting plate 7, so that the two supporting plates 7 move relative to the plastic product, so that the plastic product is quickly demolded from the supporting plate 7, and then the staff can conveniently perform the quick material taking operation on the formed plastic product.

[0023] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments without departing from the technical scheme of the present application, according to the technical essence of the present application, still belongs to the protection scope of the present application.

Claims

1. An auxiliary demolding mechanism for an injection mold comprising a lower mold (1) and an upper mold (2), characterized in that: The side surface of the lower mold (1) is provided with a mold groove (3), one side surface of the upper mold (2) is fixed with a first electric telescopic rod (4), one end of the first electric telescopic rod (4) is fixed with the lower mold (1), the lower mold (1) is provided with a supporting plate (7) at both sides of the mold groove (3), one side of the supporting plate (7) is fixed with a connecting plate (8), the connecting plate (8) is embedded with the lower mold (1), one side surface of the connecting plate (8) is fixed with a second electric telescopic rod (9), one end of the second electric telescopic rod (9) is fixed with a moving plate (10), one end surface of the moving plate (10) is fixed with a sliding plate (11), the sliding plate (11) is slidingly connected with the lower mold (1), the front surface of the lower mold (1) is fixed with a fixed plate (12), one side of the fixed plate (12) is fixed with a motor (13), the output end of the motor (13) is fixed with a screw rod (14), the screw rod (14) is rotatably penetrated with the fixed plate (12) and is threadedly connected with the sliding plate (11).

2. The assisted demolding mechanism for injection molds according to claim 1, characterized in that: The four corners of the upper surface of the lower mold (1) are fixedly connected with positioning rods (5), and the positioning rods (5) are slidingly connected with the upper mold (2).

3. The assisted demolding mechanism for injection molds according to claim 2, characterized in that: One end of the positioning rod (5) is fixedly connected with a limiting disc (6).

4. The assisted demolding mechanism for injection molds according to claim 1, characterized in that: The four corners of the lower surface of the lower mold (1) are fixedly connected with pad blocks (15).