CN212603172U - Cascaded delay ejection mechanism - Google Patents
Cascaded delay ejection mechanism Download PDFInfo
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- CN212603172U CN212603172U CN202020622373.3U CN202020622373U CN212603172U CN 212603172 U CN212603172 U CN 212603172U CN 202020622373 U CN202020622373 U CN 202020622373U CN 212603172 U CN212603172 U CN 212603172U
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- push rod
- insert
- plate
- movable
- fixedly connected
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Abstract
The utility model relates to a mould ejection apparatus field especially relates to a cascaded delay ejection mechanism, and the distance between the groove bottom surface is different with corresponding stepping down through control push rod end, makes ejecting hydro-cylinder insert the ejecting time of subassembly different, and cascaded delay is ejecting promptly, has effectively avoided moulding plastics ejection pressure to lead to moulding plastics all bad results that the part drawing of patterns is damaged, warp, dispersion causes greatly, for the production cost is practiced thrift, the time is saved, has improved production efficiency greatly.
Description
Technical Field
The utility model relates to a mould ejection apparatus field especially relates to a cascaded delay ejection mechanism.
Background
The existing product is provided with a back-off mould, a stripper plate ejection demoulding mechanism is adopted, and the injection moulding ejection pressure is increased due to the fact that the plastic product is provided with a unilateral back-off design, so that the injection moulding part is easy to deform and damage during demoulding, and the part is not dispersed and concentrated during demoulding, so that the plastic product is not easy to arrange, and the service life of the mould part is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome exist among the prior art not enough, provide a simple structure, install and use convenient cascaded delay ejection mechanism.
The utility model discloses a realize through following technical scheme:
the utility model provides a cascaded delay ejection mechanism which characterized in that includes from bottom to top: a push rod fixing plate, a push rod surface needle plate, a movable template, a core insert and an insert assembly,
the bottom of the insert assembly is fixedly connected with a push rod which sequentially penetrates through a core insert, a movable template and a push rod surface needle plate, a push rod positioning sleeve sleeved on the push rod is fixedly connected in the movable template, a abdicating groove corresponding to the lower end of the push rod is formed in the upper surface of a push rod fixing plate, the insert assembly is provided with a plurality of insert assemblies, and the distance between the tail end of the push rod at the bottom of at least one insert assembly and the corresponding abdicating groove bottom surface is different from the distance between the tail end of the push rod at the bottom of the other insert assembly and the corresponding abd.
Preferably, a return spring is fixedly connected between the movable template and the push rod surface needle plate.
Preferably, the bottom of the push rod fixing plate is provided with a movable die holder, square iron is fixedly connected between the movable die holder and the movable die plate, and the push rod fixing plate and the push rod surface needle plate are arranged in a cavity defined by the movable die plate, the square iron and the movable die holder.
The utility model has the advantages that:
the distances between the tail ends of the push rods and the bottom surfaces of the corresponding abdicating grooves are controlled to be different, so that the ejection time of different insert assemblies by the ejection oil cylinders is different, namely stepped delay ejection, all bad results caused by damage, deformation and dispersion of injection molding parts due to large injection molding ejection pressure are effectively avoided, the cost is saved for production, the time is saved, and the production efficiency is greatly improved.
Drawings
Fig. 1 is a schematic sectional structure diagram of the present invention.
Fig. 2 is a schematic view of the structure of the present invention.
Fig. 3 is a schematic view of the structure of the pusher face needle plate.
In the figure: 1. the core insert comprises a core insert, 2 insert assemblies, 21 first insert assemblies, 22 second insert assemblies, 23 third insert assemblies, 25 bolts, 3 movable templates, 31 push rod positioning sleeves, 4 push rods, 5 push rod fixing plates, 51 push rod surface needle plates, 61 first push rod positioning holes, 62 second push rod positioning holes, 7 abdicating grooves, 8 movable die holders and 9 square irons.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
As shown in the figure, the utility model discloses include from bottom to top: a push rod fixing plate 5, a push rod surface needle plate 51, a movable template 3, a core insert 1 and an insert assembly 2, wherein the push rod fixing plate is fixedly connected with the push rod surface needle plate, the movable template is fixedly connected with the core insert,
insert subassembly bottom rigid coupling have the push rod 4 that passes core insert, movable mould board and push rod face faller in proper order, through bolt 25 fixed connection between push rod and the subassembly of inserting in this embodiment, the rigid coupling has the push rod position sleeve 31 of cover on the push rod in the movable mould board, and push rod fixed plate upper surface is equipped with the groove of stepping down 7 that corresponds with the push rod lower extreme, the subassembly of inserting is equipped with a plurality ofly, and at least one insert the distance between the push rod end of subassembly bottom and the corresponding groove bottom surface of stepping down is different with the distance between the push rod end of other subassembly bottoms of inserting and the corresponding groove bottom surface of stepping down.
As shown in fig. 1 and 2, the present embodiment includes three insert assemblies: the distance between the tail ends of push rods at the bottoms of the first insert assembly and the third insert assembly and the bottom surface of the corresponding abdicating groove is the same, and the distance between the tail ends of push rods at the bottoms of the second insert assembly and the bottom surface of the corresponding abdicating groove is different, a first push rod positioning hole 61 corresponding to the push rods at the bottoms of the first insert assembly and the third insert assembly and a second push rod positioning hole 62 corresponding to the push rod at the bottom of the second insert assembly are arranged on a push rod surface needle plate, and the specific operation process during ejection is as follows: when the mold is opened, the movable mold base 8 retreats, the ejection oil cylinder of the injection molding machine pushes the push rod fixing plate 5 in the square iron 9 to drive the push rod face needle plate 51 and the push rod 4 to be pushed out forwards, and at the moment, when the root of the push rod 4 in the first group of push rod positioning holes 61 touches the bottom surface of the abdicating groove 7 arranged on the push rod fixing plate 5, two insert assemblies, namely a first insert assembly 21 and a third insert assembly 23, which are fixedly connected with the end parts of the push rod 4 move simultaneously to eject the injection molding part from the insert core; and the ejection oil cylinder of the injection molding machine continuously ejects and pushes the push rod fixing plate 5 to drive the push rod face needle plate 51 and the push rod 4 to be pushed forwards, at the moment, when the root of the push rod 4 in the second push rod positioning hole 62 touches the bottom surface of the abdicating groove 7 arranged on the push rod fixing plate 5, the second insert assembly 22 fixedly connected with the end part of the push rod 4 moves to eject the injection molding part from the insert core, and the ejection of the injection molding part is completed.
Preferably, a return spring is fixedly connected between the movable template and the push rod surface needle plate and used for returning the push rod fixing plate and the push rod surface needle plate after ejection is completed through elastic potential energy.
Preferably, the bottom of the push rod fixing plate is provided with a movable die holder 8, a square iron 9 is fixedly connected between the movable die holder and the movable die plate, and the push rod fixing plate and the push rod face needle plate are arranged in a cavity defined by the movable die plate, the square iron and the movable die holder to provide a required stroke space for the push rod fixing plate and the push rod face needle plate.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a cascaded delay ejection mechanism which characterized in that includes from bottom to top: a push rod fixing plate, a push rod surface needle plate, a movable template, a core insert and an insert assembly,
the bottom of the insert assembly is fixedly connected with a push rod which sequentially penetrates through a core insert, a movable template and a push rod surface needle plate, a push rod positioning sleeve sleeved on the push rod is fixedly connected in the movable template, a abdicating groove corresponding to the lower end of the push rod is formed in the upper surface of a push rod fixing plate, the insert assembly is provided with a plurality of insert assemblies, and the distance between the tail end of the push rod at the bottom of at least one insert assembly and the corresponding abdicating groove bottom surface is different from the distance between the tail end of the push rod at the bottom of the other insert assembly and the corresponding abd.
2. The stepped delay ejection mechanism of claim 1, wherein a return spring is fixedly connected between the movable platen and the push rod face plate.
3. The stepped delay ejection mechanism of claim 1, wherein a movable mold base is disposed at a bottom of the push rod fixing plate, a square iron is fixedly connected between the movable mold base and the movable mold plate, and the push rod fixing plate and the push rod face plate are disposed in a cavity defined by the movable mold plate, the square iron and the movable mold base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020622373.3U CN212603172U (en) | 2020-04-23 | 2020-04-23 | Cascaded delay ejection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020622373.3U CN212603172U (en) | 2020-04-23 | 2020-04-23 | Cascaded delay ejection mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212603172U true CN212603172U (en) | 2021-02-26 |
Family
ID=74709997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020622373.3U Active CN212603172U (en) | 2020-04-23 | 2020-04-23 | Cascaded delay ejection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212603172U (en) |
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2020
- 2020-04-23 CN CN202020622373.3U patent/CN212603172U/en active Active
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