Mold-opening sprue-breaking injection mold
By designing an injection mold with a gate-breaking mechanism, the gate automatically breaks when the mold is opened, solving the problems of low efficiency and high cost caused by manually cutting the gate, and achieving efficient production and high-quality products.
Patent Information
- Application Number
- CN202423062612.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Existing injection molds require manual removal of the gate after injection molding, resulting in low production efficiency and increased costs.
Design a gate-breaking injection mold that uses a carefully designed opening mechanism to automatically break the gate when the mold is opened, eliminating the need for manual trimming.
It improved production efficiency, reduced labor costs, decreased defect rate, and enhanced product appearance and overall quality.
Smart Images
Figure CN223573681U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a break-off gate injection mold technical field, concretely is a kind of mold break-off gate injection mold. BACKGROUND
[0002] Break-off gate injection mold refers to the gate part is automatically broken when mold is opened in injection molding process, so that injection molding part is conveniently taken out from mold. The main purpose of this design is to simplify the subsequent processing of injection molding part, reduce the step of removing gate by hand, improve production efficiency and product quality.
[0003] Gate plays a key role in mold, mainly including the following points: prevent melt backflow: after cavity is filled, melt is first condensed at gate, to prevent backflow; Control the position of weld mark: for multi-cavity mold, gate can control the position of weld mark; Remove gate tail material: the design and position selection of gate will affect the removal difficulty of gate tail material.
[0004] Product side glue enters, product is good to machine and is good to adjust, but there is a shortcoming that artificial cutting is needed to remove glue port, waste manpower, so a mold break-off gate structure is developed. The structure of automatic break-off gate injection mold aims to overcome the shortcomings of prior art, and through the mold opening mechanism designed carefully, the gate part can be automatically broken when mold is opened after injection molding is completed, so that the cumbersome step of artificial cutting is avoided. This innovation not only improves production efficiency, but also reduces production cost, and provides new technical support for the automation and intelligent development of injection molding industry. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a mold break-off gate injection mold to solve the problems in the above background art.
[0006] To achieve the above object, the utility model provides the following technical scheme: a mold break-off gate injection mold, comprising an upper mold plate, a lower mold plate, a thimble plate, an A plate and a B plate, the A plate and the B plate are internally provided with a mold cavity and a mold core, the mold core is composed of a front mold core and a rear mold core, and the front mold core and the rear mold core are provided with product side glue.
[0007] Preferably, one side of the product side glue is provided with a runner, and a break-off gate is arranged between the product side glue and the runner, the design of the break-off gate can effectively reduce gate marks and improve product appearance quality during injection molding.
[0008] Preferably, a gate insert is arranged on the break-off gate, and a panel insert is arranged on the gate insert.
[0009] Preferably, the gate insert and the panel insert are bolted together, and the surfaces of the gate insert and the panel insert are made of wear-resistant and corrosion-resistant material to enhance their wear resistance and corrosion resistance, ensuring that they can maintain accuracy and product quality for a long time.
[0010] The utility model provides a kind of open mould breaks gate injection mold.It has the following beneficial effects:
[0011] (1), the utility model discloses an automatic gate breaking design, gate portion can be broken automatically with mould opening, thereby avoiding the cumbersome step of artificial cutting, effectively reduce the cost of manual operation, improve production efficiency, while reducing the rate of defective products caused by manual operation.
[0012] (2), the utility model discloses a plurality of flow channels are designed, so that each cavity can be balanced filling, reduce the unbalance phenomenon in melt flow process, so that melt flow is more smooth, reduce the pressure loss, while the gate between flow channel and product side glue inlet design, effectively reduce the stress concentration at gate, further improve the overall quality of product. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is the overall structure perspective of the utility model;
[0014] Figure 2 It is the product side glue inlet structure schematic view of the utility model;
[0015] Figure 3 It is the flow channel view of the utility model;
[0016] Figure 4 It is the gate insert and panel insert view of the utility model;
[0017] Figure 5 It is the closing mould state view of the utility model;
[0018] Figure 6 It is the open mould state view of the utility model.
[0019] In the drawing: top plate 11, lower die plate 12, ejector plate 13, A plate 14, B plate 15, product side glue inlet 2, front die core 21, rear die core 22, flow channel 23, gate insert 24, panel insert 25. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0021] Examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.
[0022] The preferred embodiment of the mold-breaking sprue injection mold provided by the present application is as follows Figures 1-6 As shown in the figure: a mold-breaking sprue injection mold, comprising an upper mold plate 11, a lower mold plate 12, a ejector plate 13, an A plate 14, a B plate 15, the A plate 14 and the B plate 15 are built-in with a mold cavity and a mold core, the mold core is composed of a front mold core 21 and a rear mold core 22, a product side glue feeding 2 is arranged between the front mold core 21 and the rear mold core 22; a runner 23 is arranged on one side of the product side glue feeding 2, and a sprue breaking part is arranged between the product side glue feeding 2 and the runner 23, the design of the sprue breaking part can effectively reduce the sprue mark in the injection molding process, improve the appearance quality of the product, and a sprue insert 24 is arranged on the sprue breaking part, and a panel insert 25 is arranged on the sprue insert 24. The sprue insert 24 adopts a replaceable design, which is convenient for quick replacement to adapt to the production needs of different products, reduces the downtime in the production process, and improves the production efficiency. At the same time, the design of the panel insert 25 is beneficial to the demolding of the product, ensures the smoothness of the product surface, and further improves the overall quality of the product. A guide mechanism is arranged between the upper mold plate 11 and the lower mold plate 12 to ensure the accurate positioning when the mold is closed, reduce the clamping error, and at the same time, a plurality of ejector pins are arranged on the ejector plate 13 to balance the product demolding force, reduce deformation and internal stress, and be beneficial to maintaining the dimensional stability of the product. When the mold is opened, the panel insert 25 pulls the sprue insert to be fixed, the components except the panel move towards the opening direction, the sprue is disconnected, the A plate 14 reaches the limit position and stops, the A plate 14 and the B plate 15 are separated, and the purpose of breaking the sprue before opening the mold is achieved. During the opening process, due to the design of the sprue breaking part, the sprue insert 24 and the panel insert 25 are effectively separated, avoiding the problems of residual glue and sprue marks that may occur in the traditional injection molding process. In addition, the accurate guide mechanism of the mold ensures that the ejector plate 13 can uniformly distribute the force when the product is demolded, reduces the risk of product deformation and internal stress, and ensures the consistency and stability of each batch of products. This design not only improves the production efficiency, but also significantly improves the market competitiveness of the end product.
[0023] In use, the mold is opened, the panel insert 25 pulls the gate insert to be fixed, the components except the panel move towards the opening direction, the gate is broken, the A plate 14 reaches the limit position and stops, the A plate 14 and the B plate 15 are separated, and the purpose of breaking the gate before opening is achieved.
[0024] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing detailed description of the present application has been made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application.
Claims
1. An open mold gate-off injection mold comprising an upper mold plate (11), a lower mold plate (12), a pin plate (13), an A plate (14), a B plate (15), characterized in that, The A plate (14), B plate (15) built-in cavity and mold core, the mold core is composed of front mold kernel (21), back mold kernel (22), product side glue (2) is arranged between the front mold kernel (21), back mold kernel (22).
2. An open mold parting gate injection mold in accordance with claim 1, wherein: One side of the product side glue (2) is provided with a flow channel (23), and a parting gate is arranged between the product side glue (2) and the flow channel (23).
3. An open mold parting gate injection mold in accordance with claim 1, wherein: The parting gate is provided with a gate insert (24), and the gate insert (24) is provided with a panel insert (25).
4. An open mould parting sprue injection mould according to claim 3, characterised in that: The gate insert (24) and the panel insert (25) are connected by bolts, and the surfaces of the gate insert (24) and the panel insert (25) are made of wear-resistant and corrosion-resistant materials to enhance their wear resistance and corrosion resistance, ensuring that they can maintain accuracy and product quality for a long time.