Thin-edge insert mold
By designing a detachable thin-edged insert mold, the upper mold, lower mold and detachable core structure are used to form an annular thin-wall structure, which solves the problem of easy damage to existing mold cores, improves the durability of the mold and reduces the Cost of use.
Patent Information
- Application Number
- CN202420183644.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-25
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-01-25
AI Technical Summary
The existing integrated structural core is prone to bump during use, resulting in the thin edge structure forming of injection molded parts that do not meet the requirements and cannot be maintained, resulting in the scrapping of the mold core and high usage cost.
A thin edge insert mold is designed, including an upper mold, a lower mold and a detachable first and second mold cores, and an annular thin-wall structure of the injection molded part is formed through an annular recessed structure of the first mold core and the second mold core. The second die core may be fixedly connected by bolts and closed by movable pluggable closure block.
The removable core structure improves the durability of the mold, extends the service life and reduces the cost of use.
Smart Images
Figure CN222328896U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection mold equipment, in particular to a thin-edge insert mold. Background Art
[0002] In the injection mold industry, if the injection molded parts have thin-edge structures, the mold core needs to be provided with a corresponding recessed contour that matches the thin-edge structural contour of the injection molded parts. When the existing one-piece structural mold core is provided with a recessed contour, the two sides of the contour are bumped during use, which can easily lead to the injection molded parts having thin-edge structures that do not meet the requirements after molding and cannot be maintained, resulting in the entire mold core being scrapped and the cost of use being high.
[0003] In view of this, we propose a thin-edge insert mold to solve the existing problems. Utility Model Content
[0004] The utility model aims to provide a thin-edge insert mold to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thin-edge insert mold, including an upper mold, an upper mold cavity is arranged inside the bottom end of the upper mold, a lower mold is connected to one side of the bottom of the upper mold, a first mold core is installed at the center of the bottom surface of the lower mold and passes through the lower mold, a cavity for molding the injection molded part is formed between the top end surface of the first mold core and the upper mold cavity, a second mold core is detachably connected to the inner circle of the top surface of the first mold core, an annular recess is formed between the outer peripheral wall of the top end of the second mold core and the inner wall of the first mold core, the recess is connected to the cavity, and the annular thin-walled structure of the injection molded part is formed during injection molding.
[0006] Preferably, the second mold core is an annular component, a plurality of countersunk through holes are provided on the top surface of the second mold core at equal angles, and the second mold core is fixedly connected to the first mold core by bolts embedded in the countersunk through holes.
[0007] Preferably, a movably pluggable closing block is provided on the top end surface of the countersunk through hole, the bottom surface of the closing block abuts against the top surface of the bolt, and the top surface of the closing block and the top surface of the second mold core are in the same plane.
[0008] Preferably, an injection port connected to the mold cavity is provided at the center of the upper mold, an injection block is installed in the injection port, and a plurality of injection channels connected to the mold cavity are provided on the injection block.
[0009] Preferably, the first mold core is fixedly connected to the lower mold via a fixing ring, a cavity is provided inside the first mold core, and a third mold core for closing the bottom opening of the cavity is installed in the cavity.
[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a detachable second mold core on the first mold core, and forms a thin-edge structure corresponding to the injection molded part through a splicing structure. Once the second mold core is damaged, it can be disassembled and replaced, which can effectively improve the durability of the mold, thereby extending the service life of the injection mold and reducing the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic cross-sectional view of the overall three-dimensional structure of the utility model;
[0012] Figure 2 It is a schematic cross-sectional view of a local three-dimensional structure of the utility model;
[0013] Figure 3 It is a front view cross-sectional structural schematic diagram of the utility model.
[0014] In the figure: 1, upper mold; 2, lower mold; 3, fixing ring; 4, first mold core; 5, cavity; 6, injection block; 7, second mold core; 701, countersunk through hole; 8, closing block; 9, depression. DETAILED DESCRIPTION
[0015] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments. Example
[0016] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model proposes a thin-edge insert mold, including an upper mold 1, an upper mold 1 cavity is provided inside the bottom end of the upper mold 1, a lower mold 2 is connected to one side of the bottom of the upper mold 1, a first mold core 4 penetrating the lower mold 2 is installed at the center of the bottom surface of the lower mold 2, a cavity for molding the injection molded part is formed between the top end surface of the first mold core 4 and the upper mold 1 cavity, a second mold core 7 is detachably connected to the inner circle of the top surface of the first mold core 4, an annular recess 9 is formed between the outer peripheral wall of the top end of the second mold core 7 and the inner wall of the first mold core 4, the recess 9 is connected to the cavity, and the annular thin-walled structure of the injection molded part is formed during injection molding.
[0017] In the embodiment, the second mold core 7 is an annular component, and a plurality of countersunk through holes 701 are evenly distributed on the top surface of the second mold core 7. The second mold core 7 is fixedly connected to the first mold core 4 by bolts embedded in the countersunk through holes 701, so as to facilitate replacement of the second mold core 7.
[0018] In the embodiment, a movably pluggable closing block 8 is provided on the top end surface of the countersunk through hole, the bottom surface of the closing block abuts against the top surface of the bolt, and the top surface of the closing block 8 and the top surface of the second mold core 7 are in the same plane.
[0019] In the embodiment, an injection port communicating with the cavity is provided at the center of the upper mold 1 , an injection block 6 is installed in the injection port, and a plurality of injection channels communicating with the cavity are provided on the injection block 6 .
[0020] In the embodiment, the first mold core 4 is fixedly connected to the lower mold 2 through a fixing ring 3, a cavity 5 is provided inside the first mold core 4, a third mold core is installed in the cavity 5 for closing the bottom opening of the cavity, so as to form a closed space and inject molten plastic to form an injection molded part.
[0021] The working principle of a thin-edge insert mold based on Example 1 is: when the utility model is in use, the mold is installed as a whole in the injection molding mechanism, and the interior of the mold is enclosed by the upper mold cavity 1 at the bottom of the upper mold plate 1, the first mold core 4, the second mold core 7, and the third mold core together to form the shape contour of the injection molded part, and the inner wall of the first mold core 4 and the outer wall of the second mold core 7 are matched to form a depression 9 connected to the cavity, so that during injection molding, the injection molding mechanism allows the molten plastic to enter the cavity and the depression 9 through the channel of the injection block 6 to fill and mold, thereby completing the injection molding production and manufacturing.
[0022] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.
Claims
1. A thin-edge insert mold, comprising an upper mold (1), an upper mold (1) cavity is provided inside the bottom end of the upper mold (1), and a lower mold (2) is connected to one side of the bottom of the upper mold (1), characterized in that: A first mold core (4) penetrating the lower mold (2) is installed at the center of the bottom surface of the lower mold (2); a mold cavity for molding the injection molded part is formed between the top end surface of the first mold core (4) and the cavity of the upper mold (1); a second mold core (7) is detachably connected to the inner circle of the top surface of the first mold core (4); an annular recess (9) is formed between the outer peripheral wall of the top end of the second mold core (7) and the inner wall of the first mold core (4); the recess (9) is connected to the mold cavity, so that an annular thin-walled structure of the injection molded part is formed during injection molding.
2. A thin-edge insert mold according to claim 1, characterized in that: The second mold core (7) is an annular component, and a plurality of countersunk through holes (701) are arranged at equal angles on the top surface of the second mold core (7). The second mold core (7) is fixedly connected to the first mold core (4) by bolts embedded in the countersunk through holes (701).
3. A thin-edge insert mold according to claim 2, characterized in that: A movably pluggable closing block (8) is provided on the top end surface of the countersunk through hole, the bottom surface of the closing block abuts against the top surface of the bolt, and the top surface of the closing block (8) and the top surface of the second mold core (7) are on the same plane.
4. A thin-edge insert mold according to claim 1, characterized in that: An injection port communicating with the mould cavity is provided at the centre of the upper mould (1), an injection block (6) is installed in the injection port, and a plurality of injection channels communicating with the mould cavity are provided on the injection block (6).
5. A thin-edge insert mold according to claim 1, characterized in that: The first mold core (4) is fixedly connected to the lower mold (2) via a fixing ring (3); a cavity (5) is provided inside the first mold core (4); a third mold core for closing the bottom opening of the cavity is installed in the cavity (5).