Demolding mechanism and injection mold

Abstract

The utility model provides a demoulding mechanism and injection mould relates to injection mould field, including: first mould and second mould, the inside of first mould is provided with the demoulding mechanism, one side of demoulding mechanism is provided with the replacement mechanism. According to the die, the second die drives the second fixing frame to move, the sliding groove moves by attaching to the outer wall of the extending plate, when the extending plate is located at the bottom of the sliding groove, the blocking plate is blocked by the blocking groove, then the extending plate is driven to move along with movement of the second die and blocking of the blocking groove, and the extending plate moves to drive the connecting plate to move. The ejection plate moves to drive the replacement plate to eject out a workpiece in the first mold, limiting is conducted through a stabilizing groove and a stabilizing rod while an extension plate moves, demolding operation is conducted through force generated when the first mold and the second mold are separated, a traditional external force driving mode is eliminated, and the demolding efficiency is improved. And the energy consumption is reduced.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a demolding mechanism and an injection mold. Background Technology

[0002] Injection molds are tools used for injection molding. They can inject molten plastic into the mold cavity under high pressure from an injection molding machine, and after cooling and solidification, molded products are obtained, thereby producing plastic products of various shapes and sizes. Injection molds are often equipped with demolding mechanisms to eject the workpiece after injection molding.

[0003] In existing technologies, demolding mechanisms mostly use electric push rods to push the ejector plate, thereby demolding the injection-molded workpiece. The electric push rod requires external force, which increases energy consumption and the cost of the demolding mechanism. Secondly, since the outer wall of the ejector plate needs to match the inner wall of the molding chamber, the ejector plate is easily corroded and worn by debris generated during the injection molding process after long-term use. This can easily cause gaps between the ejector plate and the inside of the molding chamber, thus affecting the injection molding process. In this case, the entire ejector plate and the components fixedly connected to the ejector plate need to be replaced, which increases the replacement cost. Utility Model Content

[0004] The purpose of this utility model is to provide a demolding mechanism and injection mold to solve the problems mentioned in the background art, such as the increased energy consumption caused by the setting of electric push rods, which increases the cost of the demolding mechanism, and the increased replacement cost caused by replacing the entire ejector plate and the components fixedly connected to the ejector plate.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: comprising: a first mold and a second mold, wherein the first mold is provided with a demolding mechanism, the demolding mechanism comprising a moving groove, an ejection groove, a first fixing frame, a hollow groove, a moving opening, a stabilizing rod, an extension plate, a stabilizing groove, a connecting plate, a blocking plate, a second fixing frame, and a sliding groove; and a replacement mechanism is provided on one side of the demolding mechanism, the replacement mechanism comprising an ejection plate, a through groove, a positioning groove, a first mounting block, a second mounting block, a hidden groove, a threaded ring, a threaded rod, and a replacement plate.

[0006] In a preferred embodiment, the first mold has a movable groove inside, and an ejection groove is provided on one side of the movable groove. One side of the first mold is fixedly connected to one side of the first fixed frame.

[0007] In a preferred embodiment, the first fixing frame has a hollow groove inside, and a movable opening is provided on one side of the hollow groove. The inner bottom wall of the hollow groove is fixedly connected to the bottom end of the stabilizing rod.

[0008] In a preferred embodiment, the inner wall of the hollow groove is movably connected to the outer wall of the extension plate, and a stabilizing groove is provided inside the extension plate. The inner wall of the stabilizing groove is movably connected to the outer wall of the stabilizing rod. One side of the extension plate is fixedly connected to one side of the connecting plate, and the outer wall of the connecting plate is movably connected to the inner wall of the moving port. The outer wall of the connecting plate is movably connected to the inner wall of the moving groove.

[0009] In a preferred embodiment, the top side of the extension plate is fixedly connected to one side of the blocking plate, and one side of the second mold is fixedly connected to one side of the second fixing frame. The interior of the second fixing frame is provided with a sliding groove, and the inner wall of the sliding groove is movably connected to the outer wall of the extension plate. A blocking groove is provided on one side of the inner wall of the sliding groove, and the outer wall of the blocking plate is movably connected to the inner wall of the blocking groove.

[0010] In a preferred embodiment, the other side of the connecting plate is fixedly connected to one side of the ejector plate, and a through groove is provided on the top of the ejector plate. Positioning grooves are provided on both sides of the through groove, and the inner walls of the positioning grooves are movably connected to the outer walls of the first mounting block and the second mounting block, respectively.

[0011] In a preferred embodiment, the inner walls of both the first mounting block and the second mounting block are provided with hidden grooves, and the inner wall of the hidden groove located inside the first mounting block is fixedly connected to the outer wall of the threaded ring. The inner wall of the threaded ring is threadedly connected to the outer wall of the threaded rod, and the top of the second mounting block is fixedly connected to the bottom of the replacement plate. The outer walls of the ejector plate and the replacement plate are movably connected to the inner wall of the ejector groove.

[0012] An injection mold having the aforementioned demolding mechanism installed.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, when the first mold and the second mold are separated, the second mold drives the second fixed frame to move. The sliding groove moves along the outer wall of the extension plate. When the extension plate is at the bottom of the sliding groove, the blocking plate is blocked by the blocking groove. Then, with the movement of the second mold and the blocking of the blocking groove, the extension plate moves accordingly. The movement of the extension plate drives the connecting plate to move, which in turn drives the ejector plate to move towards the second mold. The movement of the ejector plate drives the replacement plate to eject the workpiece inside the first mold. While the extension plate moves, it is limited by the stabilizing groove and the stabilizing rod. The demolding operation is performed by the force generated when the first mold and the second mold are separated, which gets rid of the traditional external force driving method and reduces energy consumption.

[0015] 2. In this utility model, when the replacement plate is worn, a tool is used to rotate the threaded rod, and the threaded rod is removed through the threaded ring, so that the first mounting block and the second mounting block are freed from the limiting state, and then the replacement plate is removed. The new replacement plate is placed on one side of the ejector plate through the first mounting block and the second mounting block, and the threaded rod is rotated back into the inside of the threaded ring, thereby stabilizing the replacement plate. By replacing the replacement plate separately, the cost of replacement when damaged is reduced and the cumbersomeness of replacement is reduced. Attached Figure Description

[0016] Figure 1 This utility model provides a structural schematic diagram of a demolding mechanism and an injection mold.

[0017] Figure 2 A first mold cross-sectional view of a demolding mechanism and an injection mold provided by this utility model;

[0018] Figure 3 A sectional view of a demolding mechanism and an injection mold demolding mechanism provided by this utility model;

[0019] Figure 4 A cross-sectional view of a demolding mechanism and an injection mold replacement mechanism provided by this utility model.

[0020] Legend:

[0021] 1. First mold; 2. Second mold; 3. Demolding mechanism; 301. Moving groove; 302. Ejection groove; 303. First fixing frame; 304. Hollow groove; 305. Moving opening; 306. Stabilizing rod; 307. Extension plate; 308. Stabilizing groove; 309. Connecting plate; 310. Blocking plate; 311. Second fixing frame; 312. Sliding groove; 4. Replacement mechanism; 401. Ejection plate; 402. Through groove; 403. Positioning groove; 404. First mounting block; 405. Second mounting block; 406. Hidden groove; 407. Threaded ring; 408. Threaded rod; 409. Replacement plate. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4This utility model provides a technical solution comprising: a first mold 1 and a second mold 2. The first mold 1 is provided with a demolding mechanism 3, which includes a moving groove 301, an ejection groove 302, a first fixing frame 303, a hollow groove 304, a moving opening 305, a stabilizing rod 306, an extension plate 307, a stabilizing groove 308, a connecting plate 309, a blocking plate 310, a second fixing frame 311, and a sliding groove 312. A replacement mechanism 4 is provided on one side of the demolding mechanism 3, which includes an ejection plate 401, a through groove 402, a positioning groove 403, a first mounting block 404, a second mounting block 405, a hidden groove 406, a threaded ring 407, a threaded rod 408, and a replacement plate 409.

[0024] In one embodiment, a movable groove 301 is provided inside the first mold 1, and an ejection groove 302 is provided on one side of the movable groove 301. One side of the first mold 1 is fixedly connected to one side of the first fixed frame 303.

[0025] Specifically: The ejector slot 302 facilitates the movement of the ejector plate 401 and the replacement plate 409.

[0026] In one embodiment, a hollow groove 304 is provided inside the first fixing frame 303, and a movable opening 305 is provided on one side of the hollow groove 304. The inner bottom wall of the hollow groove 304 is fixedly connected to the bottom end of the stabilizing rod 306.

[0027] Specifically, the design of the movable port 305 ensures the stability and positioning effect of the connecting plate 309 during movement.

[0028] In one embodiment, the inner wall of the hollow groove 304 is movably connected to the outer wall of the extension plate 307, and a stabilizing groove 308 is provided inside the extension plate 307. The inner wall of the stabilizing groove 308 is movably connected to the outer wall of the stabilizing rod 306. One side of the extension plate 307 is fixedly connected to one side of the connecting plate 309, and the outer wall of the connecting plate 309 is movably connected to the inner wall of the moving port 305. The outer wall of the connecting plate 309 is movably connected to the inner wall of the moving groove 301.

[0029] Specifically: the extension plate 307 is limited by the stabilizing groove 308 and the stabilizing rod 306 while it is moving.

[0030] In one embodiment, the top side of the extension plate 307 is fixedly connected to one side of the blocking plate 310, and one side of the second mold 2 is fixedly connected to one side of the second fixing frame 311. The second fixing frame 311 has a sliding groove 312 inside, and the inner wall of the sliding groove 312 is movably connected to the outer wall of the extension plate 307. A blocking groove is provided on one side of the inner wall of the sliding groove 312, and the outer wall of the blocking plate 310 is movably connected to the inner wall of the blocking groove.

[0031] Specifically: when the first mold 1 and the second mold 2 are separated, the second mold 2 drives the second fixed frame 311 to move, and the sliding groove 312 moves along the outer wall of the extension plate 307. When the extension plate 307 is at the bottom of the sliding groove 312, the blocking plate 310 is blocked by the blocking groove. Then, with the movement of the second mold 2 and the blocking of the blocking groove, the extension plate 307 moves accordingly.

[0032] In one embodiment, the other side of the connecting plate 309 is fixedly connected to one side of the ejector plate 401, and the top of the ejector plate 401 is provided with a through groove 402. Both sides of the through groove 402 are provided with positioning grooves 403, and the inner wall of the positioning groove 403 is movably connected to the outer wall of the first mounting block 404 and the second mounting block 405, respectively.

[0033] Specifically: When the replacement plate 409 is worn, use a tool to rotate the threaded rod 408 and remove the threaded rod 408 through the threaded ring 407, so that the first mounting block 404 and the second mounting block 405 are freed from the limiting state, and then the replacement plate 409 can be removed.

[0034] In one embodiment, the inner walls of the first mounting block 404 and the second mounting block 405 are both provided with hidden grooves 406, and the inner wall of the hidden groove 406 located inside the first mounting block 404 is fixedly connected to the outer wall of the threaded ring 407. The inner wall of the threaded ring 407 is threadedly connected to the outer wall of the threaded rod 408. The top of the second mounting block 405 is fixedly connected to the bottom of the replacement plate 409. The outer walls of the ejector plate 401 and the replacement plate 409 are movably connected to the inner wall of the ejector groove 302.

[0035] Specifically, the threaded rod 408 is rotated back into the threaded ring 407 to stabilize the replacement plate 409. By replacing the replacement plate 409 separately, the cost of replacement when damaged is reduced, and the cumbersomeness of replacement is reduced.

[0036] An injection mold having the aforementioned demolding mechanism installed.

[0037] Specifically: the demolding operation is performed by the force generated when the first mold 1 and the second mold 2 separate, which eliminates the traditional external force driving method and reduces energy consumption.

[0038] Working principle: When the first mold 1 and the second mold 2 separate, the second mold 2 drives the second fixed frame 311 to move. The sliding groove 312 moves along the outer wall of the extension plate 307. When the extension plate 307 is at the bottom of the sliding groove 312, the blocking plate 310 is blocked by the blocking groove. Then, with the movement of the second mold 2 and the blocking of the blocking groove, the extension plate 307 moves accordingly. The movement of the extension plate 307 drives the connecting plate 309 to move, which in turn drives the ejector plate 401 to move towards the second mold 2. The movement of the ejector plate 401 drives the replacement plate 409 to remove the contents of the first mold 1. The workpiece is ejected from the part. While the extension plate 307 moves, it is limited by the stabilizing groove 308 and the stabilizing rod 306. When the replacement plate 409 is worn, the threaded rod 408 is rotated with a tool and removed through the threaded ring 407, so that the first mounting block 404 and the second mounting block 405 are freed from the limited state. Then the replacement plate 409 is removed. The new replacement plate 409 is placed on one side of the ejection plate 401 through the first mounting block 404 and the second mounting block 405. The threaded rod 408 is rotated back into the threaded ring 407, thereby stabilizing the replacement plate 409.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A demolding mechanism, characterized in that, include: The first mold (1) and the second mold (2) are provided with a demolding mechanism (3) inside the first mold (1). The demolding mechanism (3) includes a moving groove (301), an ejection groove (302), a first fixing frame (303), a hollow groove (304), a moving opening (305), a stabilizing rod (306), an extension plate (307), a stabilizing groove (308), a connecting plate (309), a blocking plate (310), a second fixing frame (311), and a sliding groove (312). A replacement mechanism (4) is provided on one side of the demolding mechanism (3). The replacement mechanism (4) includes an ejection plate (401), a through groove (402), a positioning groove (403), a first mounting block (404), a second mounting block (405), a hidden groove (406), a threaded ring (407), a threaded rod (408), and a replacement plate (409).

2. The demolding mechanism according to claim 1, characterized in that: The first mold (1) has a moving groove (301) inside, and an ejection groove (302) is provided on one side of the moving groove (301). One side of the first mold (1) is fixedly connected to one side of the first fixed frame (303).

3. The demolding mechanism according to claim 2, characterized in that: The first fixing frame (303) has a hollow groove (304) inside, and a moving opening (305) is provided on one side of the hollow groove (304), and the inner bottom wall of the hollow groove (304) is fixedly connected to the bottom end of the stabilizing rod (306).

4. The demolding mechanism according to claim 3, characterized in that: The inner wall of the hollow groove (304) is movably connected to the outer wall of the extension plate (307), and a stabilizing groove (308) is provided inside the extension plate (307). The inner wall of the stabilizing groove (308) is movably connected to the outer wall of the stabilizing rod (306). One side of the extension plate (307) is fixedly connected to one side of the connecting plate (309), and the outer wall of the connecting plate (309) is movably connected to the inner wall of the moving port (305). The outer wall of the connecting plate (309) is movably connected to the inner wall of the moving groove (301).

5. A demolding mechanism according to claim 4, characterized in that: The top side of the extension plate (307) is fixedly connected to one side of the blocking plate (310), and one side of the second mold (2) is fixedly connected to one side of the second fixing frame (311). The second fixing frame (311) has a sliding groove (312) inside, and the inner wall of the sliding groove (312) is movably connected to the outer wall of the extension plate (307). A blocking groove is provided on one side of the inner wall of the sliding groove (312), and the outer wall of the blocking plate (310) is movably connected to the inner wall of the blocking groove.

6. The demolding mechanism according to claim 1, characterized in that: The other side of the connecting plate (309) is fixedly connected to one side of the ejector plate (401), and the top of the ejector plate (401) is provided with a through groove (402). Positioning grooves (403) are provided on both sides of the through groove (402), and the inner wall of the positioning groove (403) is movably connected to the outer wall of the first mounting block (404) and the second mounting block (405), respectively.

7. A demolding mechanism according to claim 6, characterized in that: The inner walls of the first mounting block (404) and the second mounting block (405) are both provided with hidden grooves (406), and the inner wall of the hidden groove (406) located inside the first mounting block (404) is fixedly connected to the outer wall of the threaded ring (407). The inner wall of the threaded ring (407) is threadedly connected to the outer wall of the threaded rod (408), and the top of the second mounting block (405) is fixedly connected to the bottom of the replacement plate (409). The outer walls of the ejector plate (401) and the replacement plate (409) are movably connected to the inner wall of the ejector groove (302).

8. An injection mold, characterized in that, The injection mold is equipped with a demolding mechanism as described in any one of claims 1-7.

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