CN202412590U - Die for eliminating influence of burrs on ejector mark - Google Patents
Die for eliminating influence of burrs on ejector mark Download PDFInfo
- Publication number
- CN202412590U CN202412590U CN2011204784645U CN201120478464U CN202412590U CN 202412590 U CN202412590 U CN 202412590U CN 2011204784645 U CN2011204784645 U CN 2011204784645U CN 201120478464 U CN201120478464 U CN 201120478464U CN 202412590 U CN202412590 U CN 202412590U
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- China
- Prior art keywords
- thimble
- ejector
- boss
- model
- burr
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to a die for eliminating influence of burrs on an ejector mark of an injection moulding product. The die comprises a fixed die and a movable die, wherein the movable die comprises an ejector and a movable die core which are in contact with each other; and the ejector is positioned on a plane or a concave surface. The die is characterized in that the movable die core in contact with the ejector is provided with a lug boss, a plane or a convex surface is formed at the periphery of the lug boss, an ejector hole is formed on the lug boss, the ejector penetrates the ejector hole, and the height of the lug boss is larger than that of burrs on an ejector mark. According to the utility model, a rubber reducing position is arranged in the region of the ejector mark, the burrs on the ejector mark are positioned in a concave pit of the rubber reducing mark, the depth of the concave pit is larger than the height of the burrs and the normal use of the product is free from influence of the concave pit, so that even if the ejector has burrs, the normal use of the whole product can not be influenced. The die provided by the utility model has the advantages of simple structure and low cost.
Description
[technical field]
The utility model belongs to mould design and manufacturing technology field, relates to a kind of mould of eliminating the thimble position burr influence of injecting products.
[background technology]
For some injecting products, some plane is a use face, and these use faces require surfacing smooth; Can make things convenient for other object on this plane, to slide; And the shape of these injecting products is very special, and this use face has to be provided with the thimble position again, because other place has been provided with not the thimble position or has been not suitable for being provided with the thimble position; As shown in Figure 1, the thimble position 12 of having to be used for being provided with on the use face 11 of this injecting products 10.
And thimble all can stay burr in the thimble position of product after product is ejected, particularly at thimble through after using for a long time, the front end of thimble can attenuate, this makes gap between thimble and the centre hole increase this and has caused increasing of thimble position burr more.In fact, no matter how to regulate the gap between thimble and the centre hole, the problem of thimble position burr in injection moulding process, inevitably can occur.
In order to eliminate burr, existing technology has a lot, adopts scraper that burr is wiped off like the method through manual work, and this method efficient is very low, and misoperation, can damage moulding on the contrary, and all not have effective way to go to address this problem in the industry.
[utility model content]
The purpose of the utility model is exactly in order to solve the problem that prior art exists, to have proposed the device that a kind of new elimination thimble position burr influences.
The design of the utility model is following:
Owing to do relative slip like the use face of the described product of Fig. 1 with an object, and the contact-making surface of product is whole use face among this object and Fig. 1, so even (it is not all right salient point occurring should extremely individual other pit of use face appearance; It is protruding that the burr of thimble position belongs to exactly); Can not have influence on the slip between this use face and the said object yet, can not increase the frictional force of slip yet, so can the thimble position be arranged in this pit; Even when thimble ejects this product; Produce a little burr, and the length of this burr there is not said pit high, so even produce the normal use that burr can not influence this product yet.
The concrete technical scheme of the utility model is following:
The utility model provides a kind of mould of eliminating the burr influence of thimble position, and this mould comprises cover half, dynamic model, and said dynamic model comprises thimble and dynamic mould core; Said thimble contacts with dynamic mould core, and thimble is positioned on a plane or the concave surface, it is characterized in that; The dynamic mould core that contacts with said thimble is provided with a boss, around boss, is plane or convex surface, and a centre hole is set on this boss; This centre hole is penetrated with thimble, and the height of said boss is greater than the height of thimble position burr.
Said boss is the cylinder boss, and said boss diameter is greater than the diameter of said thimble.
Said centre hole is positioned at the center of said boss.
Said boss end face is identical with thimble front end shape.
Said boss end face and thimble front end are the plane.
The utility model beneficial technical effects is:
For the thimble position on some use faces that are arranged on of having to, the burr that removes the thimble position bothers very much, so the utility model is changed the thinking of removing burr in the past, changes into as long as this burr does not influence the use of product.So the utility model utilizes this principle; In setting subtracting glue position, zone, thimble position; Make the burr of thimble position be positioned at the pit that subtracts the glue position, and the degree of depth of this pit is provided with highlyer than the height of burr, and the existence of this pit does not influence the normal use of product; Even institute can not influence the normal use of entire product so that thimble is jagged yet.The utlity model has advantage simple in structure, with low cost.
[description of drawings]
Fig. 1 subtracts the stereochemical structure view that the glue position does not produce thimble position burr yet for the injecting products of the utility model not being provided with;
Fig. 2 subtracts the stereochemical structure view that the glue position has thimble position burr for the injecting products of the utility model not being provided with;
Fig. 3 subtracts the glue position and has the stereochemical structure view of thimble position burr in setting for the injecting products of the utility model;
Side structure sketch map when Fig. 4 lumps together for the utility model mould and injecting products.
[specific embodiment]
For the purpose, technical scheme and the advantage that make utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explain the utility model, be not used for limiting the utility model.
Embodiment
Shown in Fig. 1-5; The utility model influences the normal method of using of product to the thimble position burr that a kind of special injecting products has proposed to eliminate on this injecting products; This injecting products is shown in Fig. 1-2; This injecting products 10 has determined owing to its special shape; On the use face 11 (so-called use face is meant that this product need contact with other objects in use) of this product, have to be provided with the thimble position, can be because use other positions of the homonymy of face 11 that thimble is set with this damage of product at this product, at the opposite side of the use face of this product thimble is set and is difficult to this product is ejected.After on the use face 11 of this product thimble position 12 being set, because the gap between thimble and the moving platen can cause thimble after ejecting this product 10, can produce thimble position burr, protruding thimble position burr can influence the slip of other products on this use face.So in order to eliminate the influence of described thimble position burr; The utility model is provided with one in thimble bit position zone and subtracts glue position 13, and is as shown in Figure 3, and this subtracts glue position 13 is a cylindrical pit; The diameter of this cylindrical pit is greater than the diameter of the thimble position 12 that thimble ejects; And said thimble position 12 is positioned at the center of cylindrical pit, and the bottom of this cylindrical pit is the plane, and thimble position 12 also is the plane.The height of the degree of depth of cylindrical pit greater than thimble position burr is set; The degree of depth of the pit of present embodiment is 2mm; And the diameter of cylindrical pit is than the big 3mm of diameter of thimble, is positioned at cylindrical pit to guarantee the thimble position burr that produces, and can not protrude in said use face 11.
Influence the normal method of using of product according to the thimble position burr on this injecting products of above-mentioned elimination, the present invention has also provided the thimble position burr of eliminating on this injecting products influences the normal mould that uses of product, as shown in Figure 4; This mould comprises dynamic model and cover half; Said dynamic model comprises dynamic mould core 21 and thimble 22, and said dynamic mould core 21 uses the contact-making surface of face to be provided with a boss 211 with injecting products 10, and the centre hole (not shown) is set on the said boss; Thimble 22 is in said centre hole; Said centre hole is positioned at the center of boss 211, and this boss is cylinder, and this cylindrical diameter is greater than the diameter of thimble 22.The top of said boss and the top of thimble are the plane.The height of this boss is greater than the height of thimble position burr, and the degree of depth of the pit of present embodiment is 2mm, and the diameter of cylindrical pit is than the big 3mm of diameter of thimble, with guarantee thimble position burr do not protrude in shown in use face 11.
The described boss of present embodiment is a cylinder; The also side's of can be body, in other injecting products, said use face also can be the spill cambered surface; The said shape difference that subtracts the glue position according to product; Different being positioned at is set, not necessarily will the thimble position be arranged at the center that subtracts the glue position, the degree of depth of said pit and the size of pit diameter can be provided with as required.
Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although the utility model is specified with reference to preferred embodiment; Those of ordinary skill in the art is to be understood that; Can make amendment or be equal to replacement the technical scheme of the utility model, and not break away from the spirit and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (5)
1. eliminate the mould that thimble position burr influences for one kind, this mould comprises cover half, dynamic model, and said dynamic model comprises thimble and dynamic mould core; Said thimble contacts with dynamic mould core, and thimble is positioned on a plane or the concave surface, it is characterized in that; The dynamic mould core that contacts with said thimble is provided with a boss, around boss, is plane or convex surface, and a centre hole is set on this boss; This centre hole is penetrated with thimble, and the height of said boss is greater than the height of thimble position burr.
2. the mould of elimination thimble according to claim 1 position burr influence is characterized in that said boss is the cylinder boss, and said boss diameter is greater than the diameter of said thimble.
3. the mould of elimination thimble according to claim 2 position burr influence is characterized in that said centre hole is positioned at the center of said boss.
4. according to the mould of claim 2 or 3 described elimination thimble position burr influences, it is characterized in that said boss end face is identical with thimble front end shape.
5. the mould of elimination thimble according to claim 4 position burr influence is characterized in that said boss end face and thimble front end are the plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204784645U CN202412590U (en) | 2011-11-24 | 2011-11-24 | Die for eliminating influence of burrs on ejector mark |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204784645U CN202412590U (en) | 2011-11-24 | 2011-11-24 | Die for eliminating influence of burrs on ejector mark |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202412590U true CN202412590U (en) | 2012-09-05 |
Family
ID=46737382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204784645U Expired - Fee Related CN202412590U (en) | 2011-11-24 | 2011-11-24 | Die for eliminating influence of burrs on ejector mark |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202412590U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128914A (en) * | 2011-11-24 | 2013-06-05 | 深圳市兆威机电有限公司 | Method and mold for removing influences by burs on ejector pin position |
| CN116551943A (en) * | 2023-05-04 | 2023-08-08 | 台州市黄岩翔宇家居有限公司 | Side plate center positioning anti-deviation ejection injection mold and ejection method thereof |
-
2011
- 2011-11-24 CN CN2011204784645U patent/CN202412590U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128914A (en) * | 2011-11-24 | 2013-06-05 | 深圳市兆威机电有限公司 | Method and mold for removing influences by burs on ejector pin position |
| CN103128914B (en) * | 2011-11-24 | 2015-06-17 | 深圳市兆威机电有限公司 | Method and mold for removing influences by burs on ejector pin position |
| CN116551943A (en) * | 2023-05-04 | 2023-08-08 | 台州市黄岩翔宇家居有限公司 | Side plate center positioning anti-deviation ejection injection mold and ejection method thereof |
| CN116551943B (en) * | 2023-05-04 | 2023-12-08 | 台州市黄岩翔宇家居有限公司 | Side plate center positioning anti-deviation ejection injection mold and ejection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20141124 |
|
| EXPY | Termination of patent right or utility model |