CN203496227U - Mould core structure with high positioning precision - Google Patents
Mould core structure with high positioning precision Download PDFInfo
- Publication number
- CN203496227U CN203496227U CN201320615632.XU CN201320615632U CN203496227U CN 203496227 U CN203496227 U CN 203496227U CN 201320615632 U CN201320615632 U CN 201320615632U CN 203496227 U CN203496227 U CN 203496227U
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- Prior art keywords
- mould core
- hole
- mold insert
- positioning insert
- positioning
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a mould core structure with high positioning precision and belongs to the field of IML (In Mold Labeling) injection mould. The mould core structure comprises a front mould core and a rear mould core, wherein the front mould core is provided with a through hole and a limiting platform is arranged at the outer end of the through hole; the through hole is internally provided with a positioning insert; the positioning insert is in sealed connection with the front mould core and can slide relative to the through hole; a limiting flange extends out of the edge of the outer end of the positioning insert by corresponding to the limiting platform; the position of the positioning insert is limited by buckling the limiting platform and the limiting flange; an elastic part is connected with the outer wall of the positioning insert. According to the mould core structure with the high positioning precision, the problems in the prior art that the service life of a mould core is short and the reject ratio of products is low are solved; the positioning insert of the front mould core and the rear mould core do not need to be penetrated through so that the service life of a mold can be prolonged. Before the mould is closed, the height of the positioning insert protruding in the front mould core is high enough so that the positioning precision of a sheet material is improved. After the mould is closed, the height of the positioning insert protruding in the front mould core is small; when the mould is opened, the product can be easily released from the front mould core and the possibility of sticking the product on the front mould core can be reduced.
Description
Technical field
The utility model relates to IML injection mold field, is specifically related to a kind of mould core structure of high position precision.
Background technology
The mould core structure of traditional IML injection mold normally arranges a boss in front cavity, and boss is passed in the hole on sheet material, thereby sheet material and front cavity are positioned; Position corresponding to boss in rear cavity is provided with a groove, and in the time of matched moulds, boss and groove are inserted and worn.Before injection moulding, first sheet material is placed in front cavity, the hole on sheet material is passed from boss, thereby sheet material and front cavity are positioned, and in the time of matched moulds, boss is inserted in the groove of rear cavity.The front cavity boss height of this structure is restricted, can not be too high, otherwise product can glue front cavity, and boss and groove do and insert while wearing and can produce wearing and tearing to die, make the die lost of life, improved cost; In addition, boss also will be made modular angle, and this can affect sheet material positioning precision again, and fraction defective is improved.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of mould core structure of high position precision, and it can protect die, can guarantee sheet material positioning precision again, reduces product fraction defective.
For addressing the above problem, the technical scheme that the utility model adopts is as follows:
A mould core structure for high position precision, it comprises front cavity and rear cavity, and described front cavity is provided with through hole, and the outer end of described through hole is provided with limiting stand; Location mold insert is installed in described through hole, and location mold insert and front cavity are tightly connected, and can slide with respect to through hole; The edge of mold insert outer end, location extends defining flange corresponding to the position of limiting stand, limits the position of location mold insert by the buckle of limiting stand and defining flange; In described location, mold insert outer wall is connected with elastomeric element.
Preferably, elastomeric element is spring.
Compared to existing technology, the beneficial effects of the utility model are:
The utility model is by positioning boss is located to mold insert instead, and connects elastomeric element outward at location mold insert, thereby realizes the inside and outside motion of location mold insert, and then can make the location mold insert of front cavity wear without inserting, and can improve the life-span of mould.Before matched moulds, outstanding height can be enough high in front cavity for location mold insert, thereby improved the positioning precision of sheet material.After matched moulds, elasticity mold insert is little at the projecting inward height of cephacoria, contributes to product to depart from front cavity, and can reduce the possibility of the sticky front cavity of product during die sinking.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the mould core structure die opening state of a kind of high position precision of the present utility model;
Fig. 2 is the schematic diagram of the utility model matched moulds state;
Wherein, 1, rear cavity; 2, sheet material; 3, front cavity; 31, limiting stand; 4, location mold insert; 41, defining flange; 5, elastomeric element.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Fig. 1, a kind of mould core structure of high position precision, it comprises front cavity 3 and rear cavity 1.Front cavity 3 is provided with through hole, and the outer end of through hole is provided with limiting stand 31.Location mold insert 4 is installed in through hole, and location mold insert 4 is tightly connected with front cavity 3, and can slide with respect to through hole.Defining flange 41 is extended in position at the corresponding limiting stand 31 in the edge of mold insert 4 outer ends, location, and itself and limiting stand 31 mating reactions limit the position of locating mold insert 4 by limiting stand 31 and the buckle of defining flange 41.Outer wall at location mold insert 4 is connected with elastomeric element 5.
Before matched moulds, location mold insert 4 is inner mobile to front cavity 3 under spring force effect, until defining flange 41 is in contact with one another with limiting stand 31, thereby define location mold insert 4 at the projecting inward height of front cavity 3, then sheet material 2 is placed in front cavity 3, hole on sheet material 2 is through location mold insert 4, and location mold insert 4 can be established enough highly at the projecting inward height of front cavity 3, guarantees that sheet material 2 can be accurately positioned in front cavity 3; This structure is a kind of perforation class location mold insert that touches or insert, and during matched moulds, rear cavity 1 is pushed back after encountering location mold insert 4, makes to locate mold insert 4 and reduces at the projecting inward height in front cavity 3 chambeies, and then locate the stroke of mold insert 4 while having reduced die sinking.This structure has not only solved the difficulty that sheet material is placed, and has also solved the problem of the easy sticking to mould in glue position, hole.
Above-mentioned embodiment is only preferred embodiment of the present utility model; can not limit with this scope of the utility model protection, the variation of any unsubstantiality that those skilled in the art does on basis of the present utility model and replacement all belong to the utility model scope required for protection.
Claims (2)
1. a mould core structure for high position precision, it comprises front cavity and rear cavity, it is characterized in that: described front cavity (3) is provided with through hole, the outer end of described through hole is provided with limiting stand (31); Location mold insert (4) is installed in described through hole, and location mold insert (4) is tightly connected with front cavity (3), and can slide with respect to through hole; The edge of mold insert (4) outer end, location extends defining flange (41) corresponding to the position of limiting stand (31), limits the position of location mold insert (4) by limiting stand (31) and the buckle of defining flange (41); At described location mold insert (4) outer wall, be connected with elastomeric element (5).
2. the mould core structure of a kind of high position precision as claimed in claim 1, is characterized in that: described elastomeric element (5) is spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320615632.XU CN203496227U (en) | 2013-09-30 | 2013-09-30 | Mould core structure with high positioning precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320615632.XU CN203496227U (en) | 2013-09-30 | 2013-09-30 | Mould core structure with high positioning precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203496227U true CN203496227U (en) | 2014-03-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320615632.XU Expired - Fee Related CN203496227U (en) | 2013-09-30 | 2013-09-30 | Mould core structure with high positioning precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203496227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104972598A (en) * | 2014-04-03 | 2015-10-14 | 株式会社普利司通 | Die, Manufacturing method for unit laminate and anti-vibration device, and positioning device |
-
2013
- 2013-09-30 CN CN201320615632.XU patent/CN203496227U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104972598A (en) * | 2014-04-03 | 2015-10-14 | 株式会社普利司通 | Die, Manufacturing method for unit laminate and anti-vibration device, and positioning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20160930 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |