Injection mold capable of compound processing parting surface and inclined ejector
By designing an injection mold with a composite parting surface and an inclined ejector, the problem of the step difference between the mold parting surface and the inclined ejector surface was solved, thereby improving processing efficiency and the quality consistency of injection molded products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI TECHCAL COLLEGE OF MACHINERY & ELECTRICITY
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-03
AI Technical Summary
Existing injection molds are prone to step differences when machining the parting surface and the ejector surface of the inclined ejector, resulting in inefficient assembly and debugging and problems such as flash, dimensional deviation and discontinuous texture.
An injection mold capable of combined machining of parting surface and inclined ejector is adopted. By setting up a structural design including base, moving template, ejector base plate, ejector plate, inclined ejector, first connector and second connector, the parting surface and the ejector surface of the inclined ejector can be milled together, avoiding the step difference problem when machining them separately.
This technology enables seamless milling of the parting surface and the ejector surface of the inclined ejector, improving processing efficiency, reducing the need for manual mold repair, and ensuring the consistency of injection molded product quality.
Smart Images

Figure CN224446675U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding technology, and in particular to an injection mold capable of composite processing of parting surface and inclined top. Background Technology
[0002] In industrial production, injection molds are key equipment for mass production. When injection molded products have special undercut structures, a slanted ejector is required for demolding, and the ejector surface of the slanted ejector needs to participate in sealing the parting surface. That is, the slanted ejector penetrates the parting surface of the mold, and its ejector surface engages with the parting surface. During demolding, the ejector surface of the slanted ejector pushes the injection molded product out. For this type of injection mold, the commonly used processing technology often involves machining the parting surface of the mold separately first, then machining the ejector surface of the slanted ejector separately, and finally assembling and debugging. This processing method, due to factors such as inconsistent machine tool references and clamping errors, easily leads to a step difference between the parting surface of the mold and the ejector surface of the slanted ejector. During assembly and debugging, inefficient manual mold repair is required, and improper handling can easily lead to problems such as flash, dimensional deviations, and discontinuous textures. Utility Model Content
[0003] In order to overcome at least one of the defects described in the prior art, this utility model provides an injection mold capable of composite processing of the parting surface and the inclined ejector, so as to solve the problem that a step difference is easily generated between the parting surface of the mold and the ejector surface of the inclined ejector in the injection mold.
[0004] The present invention provides a technical solution to address the problem by disclosing an injection mold capable of composite processing of parting surfaces and inclined ejectors. The mold includes a base, a movable template, a square iron, an ejector base plate, an ejector plate, an inclined ejector, a first connector, and a second connector. The square iron is disposed on the base, the movable template is disposed on the square iron, the ejector base plate is movably disposed on the base, the ejector plate is disposed on the ejector base plate, and the inclined ejector is disposed on the ejector plate and passes through the movable template. The first connector is detachably connected to the ejector base plate and the base, and the second connector is detachably connected to the movable template and the ejector base plate.
[0005] Wherein, when the first connecting member connects the ejector base plate and the base, the ejector base plate is fixed to the base; when the second connecting member connects the moving template and the ejector base plate, the moving template is fixed to the ejector base plate, so that the parting surface on the moving template and the pushing surface of the inclined ejector can be milled together; or,
[0006] When the first connector is detached from the ejector base plate and the base, and the second connector is detached from the moving template and the ejector base plate, the ejector base plate can move relative to the base.
[0007] As an optional implementation, in this embodiment of the present invention, the injection mold capable of composite processing of the parting surface and the inclined ejector is configured as a single-cavity mold or a multi-cavity mold, with each cavity corresponding to one parting surface and corresponding to two inclined ejectors and two push surfaces.
[0008] As an optional implementation, in this embodiment of the present invention, one end of the inclined top is movably connected to the ejector plate, and the other end of the inclined top is movably inserted through the moving template.
[0009] As an optional implementation, in this embodiment of the present invention, the angle between the axial direction of the inclined top and the normal direction of the mold opening is α, where 0° < α < 15°.
[0010] As an optional implementation, in this embodiment of the present invention, the injection mold capable of composite processing of parting surface and inclined ejector further includes a first mounting base, a rotating shaft and two rollers. The first mounting base is disposed on the ejector plate and is provided with two rolling grooves. The inclined ejector is provided with a shaft hole. The rotating shaft passes through the shaft hole and extends out at both ends. The two rollers are respectively sleeved on both ends of the rotating shaft and roll in the two rolling grooves respectively.
[0011] As an optional implementation, in this embodiment of the present invention, the moving template is provided with a movable groove and a second mounting seat, the second mounting seat is fixed in the movable groove, and the other end of the inclined top is movably mounted on the second mounting seat and passes through the movable groove.
[0012] As an optional implementation, in this embodiment of the present invention, the movable groove includes three interconnected grooves, which are staggered in a stepped manner, and the second mounting base is fixed in one of the grooves near the ejector plate.
[0013] As an optional implementation, in this embodiment of the present invention, the moving template is further provided with a mold core, the mold core is milled to form the parting surface, and the movable groove extends through the mold core so that the other end of the inclined top protrudes from the mold core.
[0014] As an optional implementation, in this embodiment of the invention, the ejector plate and the inclined ejector move under the push of the ejector base plate.
[0015] As an optional implementation, in this embodiment of the present invention, the injection mold capable of composite processing of parting surface and inclined ejector further includes a first mounting base, the ejector plate is provided with a positioning groove extending to the ejector base plate, the first mounting base is installed in the positioning groove, and one end of the inclined ejector is installed on the first mounting base.
[0016] Implementing the embodiments of this utility model will have the following beneficial effects:
[0017] This utility model provides an injection mold capable of combined processing of the parting surface and the inclined ejector, comprising a base, a movable template, a square iron, an ejector base plate, an ejector plate, an inclined ejector, a first connector, and a second connector. The square iron is located on the base, the movable template is located on the square iron, the ejector base plate is movably located on the base, the ejector plate is located on the ejector base plate, and the inclined ejector is located on the ejector plate and passes through the movable template. The first connector is detachably connected to the ejector base plate and the base, and the second connector is detachably connected to the movable template and the ejector base plate. When the first connector connects the ejector base plate and the base, it fixes the ejector base plate to the base. When the second connector connects the movable template and the ejector base plate, it fixes the movable template to the ejector base plate, so that the parting surface on the movable template and the ejector's pushing surface can be milled together. Alternatively, when the first connector is detached from the ejector base plate and the base, and the second connector is detached from the template and the ejector base plate, the ejector base plate can move relative to the base. The injection mold using this solution allows for the following steps: First, the first connector connects the ejector plate and the base to fix the ejector plate to the base. Then, the second connector connects the moving mold plate and the ejector plate to fix the moving mold plate to the ejector plate, which in turn fixes it to the base. This means the inclined ejector and the moving mold plate are fixed to the base. The entire injection mold is then placed on a milling machine, allowing for the simultaneous milling of the parting surface of the moving mold plate and the ejector's pushing surface, thus resolving the step difference issue that might occur if the parting surface and the ejector's pushing surface are milled separately. Furthermore, after milling the parting surface of the moving mold plate and the ejector's pushing surface, the first connector can be removed from the ejector plate and the base, and the second connector can be removed from the moving mold plate and the ejector plate, allowing the inclined ejector and the moving mold plate to perform normal injection and demolding. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of an injection mold capable of composite processing of parting surface and inclined top in an embodiment of this utility model.
[0020] Figure 2 This is a cross-sectional view of an injection mold capable of composite processing of parting surfaces and inclined tops in an embodiment of this utility model.
[0021] Figure 3 This is a schematic diagram of a portion of the structure of an injection mold capable of composite processing of parting surfaces and inclined tops in an embodiment of this utility model.
[0022] The meanings of the reference numerals in the attached figures are as follows:
[0023] 1-Base; 2-Moving template; 21-Parting surface; 22-Moving groove; 23-Second mounting seat; 24-Mold core; 3-Square iron; 4-Ejector base plate; 5-Ejector plate; 51-Positioning groove; 6-Angled ejector; 41-Pushing surface; 7-First connector; 8-Second connector; 9-First mounting seat; 91-Rolling groove; 10-Rotating shaft; 11-Roller. Detailed Implementation
[0024] 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.
[0025] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0026] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.
[0027] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.
[0028] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.
[0029] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.
[0030] Please refer to the following: Figures 1 to 3 This utility model discloses an injection mold capable of composite processing of parting surfaces and inclined ejectors. The injection mold includes a base 1, a movable template 2, a square iron 3, an ejector base plate 4, an ejector plate 5, an inclined ejector 6, a first connecting member 7, and a second connecting member 8. The square iron is disposed on the base 1, the movable template 2 is disposed on the square iron, the ejector base plate 4 is movably disposed on the base 1, the ejector plate 5 is disposed on the ejector base plate 4, and the inclined ejector 6 is disposed on the ejector plate 5 and passes through the movable template 2. The first connecting member 7 is detachably connected to the ejector base plate 4 and the base 1, and the second connecting member 8... The first connecting piece 7 is connected to the moving template 2 and the ejector base plate 4. When the first connecting piece 7 connects the ejector base plate 4 and the base 1, the ejector base plate 4 is fixed to the base 1. When the second connecting piece 8 connects the moving template 2 and the ejector base plate 4, the moving template 2 is fixed to the ejector base plate 4, so that the parting surface 21 on the moving template 2 and the pushing surface 41 of the inclined ejector 6 can be milled together. Alternatively, when the first connecting piece 7 is detached from the ejector base plate 4 and the base 1 and the second connecting piece 8 is automatically detached from the template 2 and the ejector base plate 4, the ejector base plate 4 can move relative to the base 1. The injection mold using this solution can first connect the first connecting piece 7 to the ejector base plate 4 and the base 1 to fix the ejector base plate 4 to the base 1, and then connect the second connecting piece 8 to the moving platen 2 and the ejector base plate 4 to fix the moving platen 2 to the ejector base plate 4, and then to the base 1. This means fixing the angled ejector 6 and the moving platen 2 to the base 1. The entire injection mold can then be placed on a milling machine, allowing for the joint milling of the parting surface 21 of the moving platen 2 and the ejector surface 41 of the angled ejector 6, thus solving the problem of step differences that might occur if the parting surface 21 and the ejector surface 41 of the angled ejector 6 were milled separately. Furthermore, after the parting surface 21 of the moving platen 2 and the ejector surface 41 of the angled ejector 6 are milled, the first connecting piece 7 can be removed from the ejector base plate 4 and the base 1, and the second connecting piece 8 can be removed from the moving platen 2 and the ejector base plate 4, allowing the angled ejector 6 and the moving platen 2 to perform normal injection molding and demolding.
[0031] The injection mold capable of processing both parting surfaces and angled ejectors can be configured as a single-cavity or multi-cavity mold, with each cavity corresponding to one parting surface 21 and two angled ejectors 6 and two ejector surfaces. This embodiment uses a four-cavity injection mold capable of processing both parting surfaces and angled ejectors as an example, that is, there are four parting surfaces 21 and eight angled ejectors 6 and ejector surfaces 41.
[0032] In order to better fix the ejector base plate 4 and the base 1, there are four first connecting pieces 7, which are connected around the ejector base plate 4 and the base 1. In order to better fix the moving template 2 and the base 1, there are four second connecting pieces 8, which are connected around the moving template 2 and the ejector base plate 4.
[0033] In this embodiment, both the first connecting member 7 and the second connecting member 8 are process screws. It is understood that in other optional embodiments, the first connecting member 7 and the second connecting member 8 can also be ordinary screws, etc., and are not limited here.
[0034] In some embodiments, considering that the inclined top 6 is inclined, it is easy for the inclined top 6 to interfere with the moving template 2 during the ejection process. One end of the inclined top 6 is movably connected to the ejector plate 5, and the other end of the inclined top 6 is movably inserted through the moving template 2.
[0035] Preferably, the angle between the axial direction of the inclined ejector 6 and the normal direction of the mold opening is α, where 0° < α < 15°. α can be 1°, 3°, 5°, 7°, 9°, 11°, 13°, etc., and is not limited here.
[0036] In some embodiments, to achieve the movable connection between the angled ejector 6 and the ejector base plate 4, the injection mold capable of composite processing of the parting surface and the angled ejector further includes a first mounting base 9, a rotating shaft 10, and two rollers 11. The first mounting base 9 is disposed on the ejector plate 5 and has two rolling grooves 91. The angled ejector 6 has a shaft hole, the rotating shaft 10 passes through the shaft hole and extends out at both ends, and the two rollers 11 are respectively sleeved on both ends of the rotating shaft 10 and roll within the two rolling grooves 91. With this design, during the ejection process of the angled ejector 6, the two rollers 11 roll within the two rolling grooves 91 to drive the angled ejector 6 to move relative to the ejector plate 5.
[0037] In some embodiments, in order for the inclined top 6 to move within the movable template 2, the movable template 2 is provided with a movable groove 22 and a second mounting seat 23. The second mounting seat 23 is fixed within the movable groove 22, and the other end of the inclined top 6 is movably mounted on the second mounting seat 23 and passes through the movable groove 22.
[0038] Specifically, the movable groove 22 includes three interconnected grooves, which are staggered in a stepped manner. The second mounting seat 23 is fixed in the groove near the ejector plate 5. With this design, the inner wall of the groove can limit the movement of the second mounting seat 23, preventing it from moving away from the ejector plate 5.
[0039] In addition, the moving template 2 is also provided with a mold core 24. The mold core 24 is milled to form a parting surface 21. The movable groove 22 extends through the mold core 24 so that the other end of the inclined ejector 6 can pass through the mold core 24.
[0040] In some embodiments, both the ejector plate 5 and the angled ejector 6 are moved by the ejector base plate 4.
[0041] Furthermore, the injection mold capable of composite processing of the parting surface and the inclined ejector also includes a first mounting base 9. The ejector plate 5 has a positioning groove 51 extending to the ejector base plate 4. The first mounting base 9 is installed within the positioning groove 51, and one end of the inclined ejector 6 is mounted on the first mounting base 9.
[0042] This utility model provides an injection mold capable of composite processing of parting surfaces and inclined ejectors, comprising a base 1, a movable template 2, a square iron 3, an ejector base plate 4, an ejector plate 5, an inclined ejector 6, a first connecting member 7, and a second connecting member 8. The square iron is disposed on the base 1, the movable template 2 is disposed on the square iron, the ejector base plate 4 is movably disposed on the base 1, the ejector plate 5 is disposed on the ejector base plate 4, and the inclined ejector 6 is disposed on the ejector plate 5 and passes through the movable template 2. The first connecting member 7 is detachably connected to the ejector base plate 4 and the base 1, and the second connecting member 8 is detachably connected to the movable template 8. Plate 2 and ejector base plate 4; wherein, when the first connecting member 7 connects the ejector base plate 4 and the base 1, the ejector base plate 4 is fixed on the base 1; when the second connecting member 8 connects the moving template 2 and the ejector base plate 4, the moving template 2 is fixed on the ejector base plate 4, so that the parting surface 21 on the moving template 2 and the pushing surface 41 of the inclined ejector 6 can be milled together; or, when the first connecting member 7 is detached from the ejector base plate 4 and the base 1 and the second connecting member 8 is detached from the template 2 and the ejector base plate 4, the ejector base plate 4 can move relative to the base 1. The injection mold using this solution can first connect the first connecting piece 7 to the ejector base plate 4 and the base 1 to fix the ejector base plate 4 to the base 1, and then connect the second connecting piece 8 to the moving platen 2 and the ejector base plate 4 to fix the moving platen 2 to the ejector base plate 4, and then to the base 1. This means fixing the angled ejector 6 and the moving platen 2 to the base 1. The entire injection mold can then be placed on a milling machine, allowing for the joint milling of the parting surface 21 of the moving platen 2 and the ejector surface 41 of the angled ejector 6, thus solving the problem of step differences that might occur if the parting surface 21 and the ejector surface 41 of the angled ejector 6 were milled separately. Furthermore, after the parting surface 21 of the moving platen 2 and the ejector surface 41 of the angled ejector 6 are milled, the first connecting piece 7 can be removed from the ejector base plate 4 and the base 1, and the second connecting piece 8 can be removed from the moving platen 2 and the ejector base plate 4, allowing the angled ejector 6 and the moving platen 2 to perform normal injection molding and demolding.
[0043] The above provides a detailed description of an injection mold capable of composite processing of parting surfaces and inclined ejectors, as disclosed in the embodiments of this utility model. This article uses specific examples to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the injection mold capable of composite processing of parting surfaces and inclined ejectors and its core concept. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the concept of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. An injection mold capable of composite processing of parting surfaces and inclined ejectors, characterized in that, The device includes a base (1), a movable template (2), a square iron (3), a pin base plate (4), a pin plate (5), an inclined pin (6), a first connector (7), and a second connector (8). The square iron is disposed on the base (1), the movable template (2) is disposed on the square iron, the pin base plate (4) is movably disposed on the base (1), the pin plate (5) is disposed on the pin base plate (4), and the inclined pin (6) is disposed on the pin plate (5) and passes through the movable template (2). The first connector (7) is detachably connected to the pin base plate (4) and the base (1), and the second connector (8) is detachably connected to the movable template (2) and the pin base plate (4). Wherein, when the first connecting member (7) connects the ejector base plate (4) and the base (1), the ejector base plate (4) is fixed to the base (1); when the second connecting member (8) connects the moving template (2) and the ejector base plate (4), the moving template (2) is fixed to the ejector base plate (4), so that the parting surface (21) on the moving template (2) and the pushing surface (41) of the inclined ejector (6) can be milled together; or, When the first connector (7) is detached from the ejector base plate (4) and the base (1) and the second connector (8) is detached from the moving template (2) and the ejector base plate (4), the ejector base plate (4) can move relative to the base (1).
2. The injection mold capable of composite processing of parting surface and inclined ejector as described in claim 1, characterized in that: The injection mold capable of composite processing of parting surface and inclined ejector is configured as one mold with one cavity or one mold with multiple cavities, each cavity corresponding to one parting surface (21) and two inclined ejectors (6) and two ejector surfaces.
3. The injection mold capable of composite processing of parting surface and inclined ejector as described in claim 1, characterized in that: One end of the inclined top (6) is movably connected to the ejector plate (5), and the other end of the inclined top (6) is movably inserted through the moving template (2).
4. The injection mold capable of composite processing of parting surface and inclined ejector as described in claim 3, characterized in that: The angle between the axial direction of the inclined top (6) and the normal direction of the mold opening is α, where 0° < α < 15°.
5. The injection mold capable of composite processing of parting surface and inclined ejector as described in claim 3, characterized in that: The injection mold capable of compound processing of parting surface and inclined top also includes a first mounting base (9), a rotating shaft (10) and two rollers (11). The first mounting base (9) is provided on the ejector plate (5). The first mounting base (9) is provided with two rolling grooves (91). The inclined top (6) is provided with a shaft hole. The rotating shaft (10) passes through the shaft hole and extends out at both ends. The two rollers (11) are respectively sleeved on both ends of the rotating shaft (10) and roll in the two rolling grooves (91).
6. The injection mold capable of composite processing of parting surface and inclined ejector as described in claim 3, characterized in that: The movable template (2) is provided with a movable groove (22) and a second mounting base (23). The second mounting base (23) is fixed in the movable groove (22). The other end of the inclined top (6) is movably installed on the second mounting base (23) and passes through the movable groove (22).
7. The injection mold capable of composite processing of parting surface and inclined ejector as described in claim 6, characterized in that: The movable groove (22) includes three interconnected grooves, which are staggered in a stepped manner, and the second mounting base (23) is fixed in the groove near the ejector plate (5).
8. The injection mold capable of composite processing of parting surface and inclined ejector as described in claim 6, characterized in that: The moving template (2) is also provided with a mold core (24), which is milled to form the parting surface (21). The movable groove (22) extends through the mold core (24) so that the other end of the inclined top (6) passes through the mold core (24).
9. The injection mold capable of composite processing of parting surface and inclined ejector according to any one of claims 1 to 8, characterized in that: The ejector plate (5) and the inclined ejector (6) move under the push of the ejector base plate (4).
10. The injection mold capable of composite processing of parting surface and inclined ejector as described in claim 9, characterized in that: The injection mold capable of composite processing of parting surface and inclined ejector also includes a first mounting base (9), the ejector plate (5) is provided with a positioning groove (51) that extends through to the ejector base plate (4), the first mounting base (9) is installed in the positioning groove (51), and one end of the inclined ejector (6) is installed on the first mounting base (9).