CN210336760U - Ejection mechanism and injection mold - Google Patents
Ejection mechanism and injection mold Download PDFInfo
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- CN210336760U CN210336760U CN201921244554.0U CN201921244554U CN210336760U CN 210336760 U CN210336760 U CN 210336760U CN 201921244554 U CN201921244554 U CN 201921244554U CN 210336760 U CN210336760 U CN 210336760U
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- ejection mechanism
- block
- demolding
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- piece
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Abstract
The utility model relates to an injection mold field discloses an ejection mechanism and injection mold. The ejection mechanism comprises an ejector block, a limiting piece, an elastic piece and a sliding block, wherein the ejector block can eject the injection molding piece along a first direction, and an accommodating groove and a first through hole are formed in the ejector block; the limiting piece is arranged in the accommodating groove; the elastic piece is sleeved on the limiting piece; the slider slides along the second direction and sets up on the locating part, and the second direction is perpendicular with the first direction, is provided with the demolding projection of wearing to locate in the first through-hole on the slider, and when the kicking block removed along the first direction, the slider was configured to and can slide on the locating part through the effort of elastic component to make the demolding projection break away from along the second direction with the preprocessing hole site of injection molding. The injection mold comprises the ejection mechanism. The utility model discloses simple structure, convenient to use can carry out the demolding to the hole site that needs transversely demolding when ejecting whole product.
Description
Technical Field
The utility model relates to an injection mold field especially relates to an ejection mechanism and injection mold.
Background
Injection molding is a processing method used for mass production of parts with complex shapes, and particularly relates to a method for injecting heated and melted plastic into a mold cavity from an injection molding machine at high pressure, and obtaining a molded product after cooling and solidification. After cooling and forming, the formed product is stuck in a female mold, demolding is required, and an ejection mechanism is usually designed for an injection mold to eject the formed product.
Sometimes, an injection molding part product has a structure of a mounting lug, a hole position needs to be formed in the mounting lug, a sliding block needs to be designed for the hole position to be subjected to demolding, however, the hole position of the injection molding part product needs to be subjected to transverse demolding, the demolding direction of the sliding block is inconsistent with the ejection direction of the whole product, interference is generated, and the conventional existing sliding block cannot be used.
SUMMERY OF THE UTILITY MODEL
Based on above problem, an object of the utility model is to provide an ejection mechanism and injection mold can carry out the demolding to the hole site that needs transversely demolding in ejecting injection molding.
In order to achieve the purpose, the utility model adopts the following technical proposal:
an ejection mechanism, comprising:
the ejection block can eject the injection molding piece along a first direction, and an accommodating groove and a first through hole are formed in the ejection block;
the limiting piece is arranged in the accommodating groove;
the elastic piece is sleeved on the limiting piece;
the sliding block is arranged on the limiting piece in a sliding mode along a second direction, the second direction is perpendicular to the first direction, and a mold-stripping convex column penetrating through the first through hole is arranged on the sliding block;
when the ejector block moves along the first direction, the sliding block is configured to be capable of sliding on the limiting piece through the acting force of the elastic piece, so that the demolding convex column is separated from a preprocessing hole position of the injection molding piece along the second direction.
As the utility model discloses an ejection mechanism's preferred scheme, be provided with the backstop piece on the slider, the tip of locating part is provided with backstop portion, backstop portion can block backstop piece, with the restriction the slider is in sliding distance on the locating part.
As the utility model discloses an ejection mechanism's preferred scheme, the slider is in sliding distance on the locating part is greater than the degree of depth of preprocessing hole site.
As the utility model discloses an ejection mechanism's preferred scheme, the one end butt of elastic component in on the inner wall of holding tank, the other end butt in on the backstop piece.
As the utility model discloses an ejection mechanism's preferred scheme, locating part threaded connection in on the inner wall of holding tank.
As the preferred scheme of the ejection mechanism of the utility model, the elastic component is a spring.
As the utility model discloses an ejection mechanism's preferred scheme, it is protruding to be provided with the hole site on the demolding projection.
As the utility model discloses an ejection mechanism's preferred scheme, the kicking block is connected with the ejector pin, the axis direction of ejector pin is followed first direction sets up.
An injection mold comprises the ejection mechanism.
As the utility model discloses an injection mold's preferred scheme, injection mold still includes movable mould benevolence, be provided with the storage tank on the movable mould benevolence, ejection mechanism is located in the storage tank, be provided with the direction inclined plane on the lateral wall of storage tank, be provided with on the slider can with direction inclined plane complex inclined plane that resets.
The utility model has the advantages that:
the utility model provides an ejection mechanism, when carrying out injection molding on an injection molding piece, a mold-stripping convex column of a slide block penetrates out of a first through hole of an ejector block to be used as a mold of an injection molding hole site, and an elastic piece is in a compression state at the moment; in the process that the ejector block ejects the injection molding part along the first direction, the sliding block can slide on the limiting part along the second direction perpendicular to the first direction through the acting force of the elastic part, so that the demolding convex column is separated from the preprocessing hole position of the injection molding part along the second direction, and the transverse demolding of the hole position is completed. The utility model provides an ejection mechanism, simple structure, convenient to use can carry out the demolding to the hole site that needs transversely demolding when ejecting whole product.
The utility model provides an injection mold, simple structure, convenient to use can carry out the demolding to the hole site that needs transversely demolding when ejecting whole product.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an ejection mechanism according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of the ejection mechanism according to the embodiment of the present invention before demolding;
fig. 3 is a cross-sectional view of the ejection mechanism according to the embodiment of the present invention after demolding.
In the figure:
1-a top block; 2-a limiting member; 3-an elastic member; 4-a slide block; 5-a top rod;
21-a stop;
41-demolding convex columns; 411-hole site bulge; 42-a stop block; 43-a reset ramp;
100-moving mold core; 101-guide ramp.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment provides an ejection mechanism for demolding an injection molding piece. As shown in fig. 1, the ejection mechanism includes an ejector block 1, a limiting member 2, an elastic member 3, and a slider 4. Ejector block 1 can be along the ejecting injection molding of first direction (for example vertical direction), in order to be ejecting 1 with ejector block, optionally, ejector block 1 is connected with ejector pin 5, and the axis direction of ejector pin 5 sets up along the first direction, ejector pin 5 through bolt and ejector block 1 fixed connection for the transmission effort is ejecting 1 upwards with ejector block.
Specifically, as shown in fig. 2 and 3, an accommodating groove and a first through hole are formed in the top block 1; the limiting piece 2 is arranged in the accommodating groove; the elastic element 3 is sleeved on the limiting element 2; the sliding block 4 is slidably disposed on the limiting member 2 along a second direction (for example, a horizontal direction), the second direction is perpendicular to the first direction, the sliding block 4 is provided with a mold-releasing convex column 41 penetrating through the first through hole, and when the top block 1 moves along the first direction, the sliding block 4 is configured to be capable of sliding on the limiting member 2 by an acting force of the elastic member 3, so that the mold-releasing convex column 41 is separated from a pre-processing hole of the injection molding along the second direction. When injection molding is performed on the injection molding part, the mold-releasing convex column 41 of the sliding block 4 penetrates out of the first through hole of the ejector block 1 to serve as a mold of an injection molding hole position, at the moment, the elastic part 3 is in a compression state, in the process that the ejector block 1 ejects the injection molding part along a first direction (for example, upward), the sliding block 4 can slide along a second direction (for example, rightward) perpendicular to the first direction on the limiting part 2 through the acting force of the elastic part 3, so that the mold-releasing convex column 41 is separated from a pre-processing hole position, and transverse mold releasing of the hole position is completed. In order to form a hole site on the product by injection molding, optionally, a hole site protrusion 411 is disposed on the mold-releasing pillar 41. In this embodiment, the demolding convex pillar 41 is a flat-cone-shaped pillar, and correspondingly, the first through hole of the top block 1 is a flat-cone-shaped pillar, and the first through hole is communicated with the accommodating groove and is arranged on the bottom wall of the accommodating groove. Two hole site protrusions 411 are arranged at intervals and located at the end part of the demolding convex column 41, the hole site protrusions 411 are cylindrical, and the size of the hole site protrusions 411 needs to be determined according to the size of a prefabricated hole site on an injection molding piece as the hole site protrusions 411 are used as molds for injection molding.
In order to control the sliding distance of the sliding block 4 on the limiting member 2, optionally, a stop block 42 is provided on the sliding block 4, a stop portion 21 is provided at an end of the limiting member 2, and the stop portion 21 can block the stop block 42 to limit the sliding distance of the sliding block 4 on the limiting member 2. In the present embodiment, the stopping portion 21 is an annular protrusion at the end of the limiting member 2, and can be caught by the stopping block 42. In order to ensure smooth demolding of the pre-processing hole site, optionally, the sliding distance of the sliding block 4 on the limiting part 2 is greater than the depth of the pre-processing hole site, so that the interference of the demolding convex column 41 and the pre-processing hole site in the ejection process of the ejector block 1 is avoided. In order to facilitate the installation of the limiting member 2 in the accommodating groove, optionally, the limiting member 2 is screwed to the inner wall of the accommodating groove, and meanwhile, the maximum sliding distance of the sliding block 4 on the limiting member 2 can be adjusted by adjusting the screwing degree of the limiting member 2. The stop part 2 is preferably a screw, so that the material is convenient to obtain and the cost is low. In order to apply a force to the slider 4 by the elastic member 3, optionally, one end of the elastic member 3 abuts against the inner wall of the receiving groove, and the other end abuts against the stopper 42. Optionally, the elastic part 3 is a spring, so that the material is convenient to obtain and the cost is low.
As shown in fig. 2, before demolding, the ejection boss 41 of the slider 4 penetrates through the first through hole of the ejection block 1, the hole location protrusion 411 on the ejection boss 41 serves as a mold for injection hole location, and at this time, the elastic element 3 is in a compressed state. As shown in fig. 3, after demolding, in the process of ejecting the ejector block 1 (upwards) out of the injection molding part by the ejector rod 5, the sliding block 4 can slide (rightwards) on the limiting part 2 by the acting force of the elastic part 3, so that the hole position protrusion 411 on the mold ejection convex column 41 is separated from the pre-processing hole position, and at the moment, the sliding block 4 is blocked by the limiting part 2, so that the transverse mold ejection of the hole position is completed, and meanwhile, the interference on the ejection cannot be generated.
The ejection mechanism that this embodiment provided, simple structure, convenient to use can carry out the demolding to the hole site that needs transversely demolding when ejecting whole product.
The embodiment also provides an injection mold, which comprises the ejection mechanism. As shown in fig. 2 and fig. 3, optionally, the injection mold further includes a movable mold core 100, the movable mold core 100 is provided with an accommodating groove, the ejection mechanism is located in the accommodating groove, a guide inclined surface 101 is provided on a side wall of the accommodating groove, and a reset inclined surface 43 capable of cooperating with the guide inclined surface 101 is provided on the slide block 4. After the ejection mechanism finishes ejecting the injection molding piece, and the ejection mechanism needs to be reset, the ejection mechanism is pressed downwards into the accommodating groove of the movable mold core 100, and the guide inclined plane 101 on the movable mold core 100 and the reset inclined plane 43 on the sliding block 4 are matched to generate an interaction force, so that the sliding block 4 compresses the elastic piece 3 until the sliding block 4 is clamped by the inner wall of the accommodating groove of the movable mold core 100, and the resetting of the ejection mechanism is finished. Certainly, the injection mold further comprises conventional injection molding parts such as a movable mold bottom plate, an ejector plate, movable mold square iron, a movable mold frame and the like, which are all in the prior art and are not described herein again.
The injection mold provided by the embodiment has the advantages of simple structure and convenience in use, and can be used for demolding hole positions needing to be transversely demolded while ejecting the whole product.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious modifications, rearrangements and substitutions without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. An ejection mechanism, comprising:
the ejection block (1) can eject an injection molding piece in a first direction, and an accommodating groove and a first through hole are formed in the ejection block (1);
the limiting piece (2) is arranged in the accommodating groove;
the elastic piece (3) is sleeved on the limiting piece (2);
the sliding block (4) is arranged on the limiting piece (2) in a sliding mode along a second direction, the second direction is perpendicular to the first direction, and a mold-stripping convex column (41) penetrating through the first through hole is arranged on the sliding block (4);
when the top block (1) moves along the first direction, the sliding block (4) is configured to be capable of sliding on the limiting part (2) through the acting force of the elastic part (3) so that the demolding convex column (41) is separated from a preprocessing hole position of the injection molding part along the second direction.
2. The ejection mechanism according to claim 1, characterized in that a stop block (42) is provided on the slider (4), a stop portion (21) is provided at an end of the limiting member (2), and the stop portion (21) can block the stop block (42) to limit a sliding distance of the slider (4) on the limiting member (2).
3. The ejection mechanism according to claim 2, characterized in that the sliding distance of the slider (4) on the stop (2) is greater than the depth of the pre-machining hole site.
4. Ejection mechanism according to claim 2, characterized in that the elastic element (3) has one end abutting against the inner wall of the housing groove and the other end abutting against the stop block (42).
5. The ejection mechanism according to claim 1, characterized in that the retaining element (2) is screwed onto the inner wall of the receiving groove.
6. Ejection mechanism according to claim 1, characterized in that the elastic element (3) is a spring.
7. Ejection mechanism according to claim 1, characterized in that the ejector cylinder (41) is provided with a hole site protrusion (411).
8. The ejection mechanism according to claim 1, characterized in that a push rod (5) is connected to the ejector block (1), and an axial direction of the push rod (5) is arranged in the first direction.
9. An injection mold comprising the ejection mechanism of any one of claims 1-8.
10. The injection mold according to claim 9, further comprising a movable mold core (100), wherein the movable mold core (100) is provided with a receiving groove, the ejection mechanism is located in the receiving groove, a guiding inclined surface (101) is provided on a side wall of the receiving groove, and a reset inclined surface (43) capable of cooperating with the guiding inclined surface (101) is provided on the slide block (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921244554.0U CN210336760U (en) | 2019-08-02 | 2019-08-02 | Ejection mechanism and injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921244554.0U CN210336760U (en) | 2019-08-02 | 2019-08-02 | Ejection mechanism and injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210336760U true CN210336760U (en) | 2020-04-17 |
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ID=70217911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921244554.0U Active CN210336760U (en) | 2019-08-02 | 2019-08-02 | Ejection mechanism and injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210336760U (en) |
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2019
- 2019-08-02 CN CN201921244554.0U patent/CN210336760U/en active Active
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