CN210999837U - Injection mould - Google Patents
Injection mould Download PDFInfo
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- CN210999837U CN210999837U CN201921348512.1U CN201921348512U CN210999837U CN 210999837 U CN210999837 U CN 210999837U CN 201921348512 U CN201921348512 U CN 201921348512U CN 210999837 U CN210999837 U CN 210999837U
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- hydro
- cylinder
- mould
- thimble
- insert
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Abstract
The utility model discloses an injection mold, including back mould embryo, the top central point department of putting of back mould embryo inlays and is equipped with mould benevolence, and the bottom of mould benevolence is provided with inlays the hydro-cylinder mold insert of establishing in back mould embryo, hydro-cylinder mold insert one side is provided with the hydro-cylinder rather than the intercommunication, inlay in the mould benevolence and be equipped with a plurality of thimbles, and the bottom of a plurality of thimbles all extends to in the hydro-cylinder mold insert. The utility model discloses in, start the hydro-cylinder and move, carry out the transport of hydraulic oil in to the hydro-cylinder mold insert through the connecting pipe, back in hydraulic oil gets into the hydro-cylinder mold insert, increase the inside pressure of hydro-cylinder mold insert, and then make hydraulic oil promote to inlay and establish the thimble in the thimble slide and slide, the thimble promotes the working of plastics in mould benevolence when upwards moving, thereby makes the working of plastics deviate from mould benevolence, with this completion through the operation of releasing of hydraulic pressure mechanism to the working of plastics.
Description
Technical Field
The utility model relates to an injection mold makes technical field, especially relates to injection mold.
Background
An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification.
However, the total thickness of the existing mold is thick, and the injection molding machine is required to drive the ejector plate to eject, so that the overall volume of the injection molding machine is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the injection mold is provided for solving the problem that the whole volume of the existing injection molding machine is large.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the injection mold comprises a rear mold blank, wherein a mold core is embedded in the center of the top of the rear mold blank, an oil cylinder insert embedded in the rear mold blank is arranged at the bottom of the mold core, an oil cylinder communicated with the oil cylinder insert is arranged on one side of the oil cylinder insert, a plurality of ejector pins are embedded in the mold core, and the bottoms of the ejector pins extend into the oil cylinder insert.
As a further description of the above technical solution:
the oil cylinder is communicated with the oil cylinder insert through a connecting pipe.
As a further description of the above technical solution:
the oil cylinder is fixedly connected with the rear die blank through a bolt.
As a further description of the above technical solution:
the extension pot head of thimble is equipped with the thimble slide, and is transition fit between thimble and the thimble slide to the thimble slide welds in the top of hydro-cylinder mold insert 6.
As a further description of the above technical solution:
the ejector pins extend to the bottom of the inner cavity of the mold core.
As a further description of the above technical solution:
the longitudinal section of the thimble sliding seat is of a right-angled trapezoid structure, and the bevel edge is close to one side of the oil cylinder.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
in the utility model, the oil cylinder is started to move, hydraulic oil is conveyed into the oil cylinder insert through the connecting pipe, after the hydraulic oil enters the oil cylinder insert, the pressure inside the oil cylinder insert is increased, so that the hydraulic oil pushes the thimble embedded in the thimble sliding seat to slide, the thimble pushes the plastic piece in the mold core when moving upwards, and the plastic piece is separated from the mold core, thereby the pushing operation of the plastic piece through the hydraulic mechanism is completed, and the volume of the hydraulic oil cylinder is smaller, so that the volume of the mold is reduced; after the ejection operation is finished, the oil cylinder contracts, so that hydraulic oil returns to the oil cylinder again, and the internal pressure intensity is reduced due to the reduction of the hydraulic oil in the oil cylinder insert, so that the ejector pin is sucked, the reset operation of the ejector pin is finished, and preparation is made for next ejection.
Drawings
Figure 1 shows a longitudinal section provided according to an embodiment of the invention;
fig. 2 shows an enlarged view of a rear thimble provided in accordance with an embodiment of the present invention;
fig. 3 shows an enlarged view of a front end thimble provided in accordance with an embodiment of the present invention;
illustration of the drawings:
1. a rear mold blank; 2. an oil cylinder; 3. a mold core; 4. a thimble; 5. a thimble sliding seat; 6. the oil cylinder insert; 7. And (4) connecting the pipes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: injection mold, including back mould embryo 1, the top central point department of putting of back mould embryo 1 inlays and is equipped with mould benevolence 3, and the chamber of moulding plastics has been seted up to mould benevolence 3 inboard, and the bottom of mould benevolence 3 is provided with inlays the hydro-cylinder mold insert 6 of establishing in back mould embryo 1, and hydro-cylinder mold insert 6 one side is provided with hydro-cylinder 2 rather than the intercommunication, inlays in the mould benevolence 3 and is equipped with a plurality of thimbles 4, and the bottom of a plurality of thimbles 4 all extends to in the hydro-cylinder mold insert 6, and the hydraulic oil in the hydro-.
Specifically, as shown in fig. 1-3, the oil cylinder 2 is communicated with the oil cylinder insert 6 through a connecting pipe 7, so that hydraulic oil can flow into the oil cylinder insert 6 conveniently, and the oil cylinder 2 is fixedly connected with the rear mold blank 1 through a bolt.
Specifically, as shown in fig. 1 to 3, an extension end of the thimble 4 is sleeved with a thimble sliding seat 5, the thimble 4 and the thimble sliding seat 5 are in transition fit, the thimble sliding seat 5 is welded at the top of the oil cylinder insert 6, the plurality of thimbles 4 all extend to the bottom of the inner cavity of the mold core 3, the tops of the plurality of thimbles 4 are all level with the inner plane of the mold, the longitudinal section of the thimble sliding seat 5 is of a right trapezoid structure, and the bevel edge is close to one side of the oil cylinder 2.
The working principle is as follows: when the die is used, after the die is machined, when the plastic part in the die needs to be ejected, the oil cylinder 2 is started to move, hydraulic oil is conveyed into the oil cylinder insert 6 through the connecting pipe 7, after the hydraulic oil enters the oil cylinder insert 6, the pressure inside the oil cylinder insert 6 is increased, the hydraulic oil further pushes the ejector pin 4 embedded in the ejector pin sliding seat 5 to slide, the ejector pin 4 pushes the plastic part in the die core 3 when moving upwards, and therefore the plastic part is separated from the die core 3, the plastic part is pushed out through the hydraulic mechanism, and the size of the die is reduced due to the fact that the hydraulic oil cylinder 2 is small in size; after the ejection operation is completed, the oil cylinder 2 contracts, so that the hydraulic oil returns to the oil cylinder 2 again, and the internal pressure intensity is reduced due to the reduction of the hydraulic oil in the oil cylinder insert 6, so that the ejector pin 4 is sucked, the reset operation of the ejector pin 4 is completed, and preparation is made for the next ejection.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. Injection mold, including back mould embryo (1), its characterized in that, the top central point department of back mould embryo (1) inlays and is equipped with mould benevolence (3), and the bottom of mould benevolence (3) is provided with inlays hydro-cylinder mold insert (6) of establishing in back mould embryo (1), hydro-cylinder mold insert (6) one side is provided with hydro-cylinder (2) rather than the intercommunication, inlay in mould benevolence (3) and be equipped with a plurality of thimbles (4), and the bottom of a plurality of thimbles (4) all extends to in hydro-cylinder mold insert (6).
2. An injection mould according to claim 1, characterized in that the cylinder (2) communicates with the cylinder insert (6) via a connecting tube (7).
3. An injection mould according to claim 1, characterized in that the oil cylinder (2) is fixedly connected with the rear mould blank (1) through bolts.
4. The injection mold according to claim 1, wherein the extended end of the thimble (4) is sleeved with a thimble sliding seat (5), the thimble (4) and the thimble sliding seat (5) are in transition fit, and the thimble sliding seat (5) is welded on the top of the cylinder insert (6).
5. The injection mold according to claim 1, wherein the plurality of ejector pins (4) extend to the bottom of the cavity of the mold core (3).
6. An injection mould according to claim 4, characterized in that the longitudinal section of the ejector pin slide (5) is in a right-angled trapezoid structure, and the bevel edge is close to one side of the oil cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921348512.1U CN210999837U (en) | 2019-08-20 | 2019-08-20 | Injection mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921348512.1U CN210999837U (en) | 2019-08-20 | 2019-08-20 | Injection mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210999837U true CN210999837U (en) | 2020-07-14 |
Family
ID=71468534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921348512.1U Active CN210999837U (en) | 2019-08-20 | 2019-08-20 | Injection mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210999837U (en) |
-
2019
- 2019-08-20 CN CN201921348512.1U patent/CN210999837U/en active Active
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