CN101811342B - Interval pop-up type demoulding device - Google Patents
Interval pop-up type demoulding device Download PDFInfo
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- CN101811342B CN101811342B CN 201010045851 CN201010045851A CN101811342B CN 101811342 B CN101811342 B CN 101811342B CN 201010045851 CN201010045851 CN 201010045851 CN 201010045851 A CN201010045851 A CN 201010045851A CN 101811342 B CN101811342 B CN 101811342B
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- external drum
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- pop
- interval
- die cavity
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Abstract
The invention relates to the technical field of mold forming, in particular to an interval pop-up type demoulding device. Compared with the prior art, the interval pop-up type demoulding device adopts the structure of two parting surfaces, the impression and core of the demoulding device are both provided with external drums, a main parting surface is firstly opened when a mold is opened to ensure the product to stay in a mobile mould impression, and then a secondary parting surface is opened. As the slope of the external drum on the impression is less than that of the external drum on the core, when a push plate is away from a fixing plate 10mm, the cavity between the core and the product is larger than the external drum arranged on the impression and a thimble can be used to easily eject the product which is separated from the core out of the impression; as the external drum is previously formed on the product, the demoulded product is flat after forming, the reshaping process is eliminated; and the quality is stable, and the production efficiency is greatly increased.
Description
Technical field
The present invention relates to the mould molding technical field, particularly a kind of interval pop-up type demoulding device.
Background technology
Along with the development of industrial technology, because plastic material has the advantages such as shaped article is fast, the prices of raw and semifnished materials are low, plastic material more and more is applied in field of industrial production, and such as various capacitor protectors etc., these all need the former of mould of plastics.
The product that certain structures is more special, such as some band ear products, its die joint also is different from the die joint of mill run, its die joint of this product can only be located at the product outer bottom, the stripping means of this product of the prior art is: for guaranteeing carrying out smoothly of the demoulding, it is lower that the molding gradient of die cavity must go up size, and the product peristome can not have external drum (the external drum Main Function is to offset the indent that produces when product shrinks), otherwise can produce the back taper phenomenon, can wear top, product bottom during the thimble demoulding, form product rejection.And the mould molding product out that can not do external drum can produce serious indent after the demoulding, in order to guarantee to allow this indent not affect the use of product, behind product stripping, also to spend manually and with shaping tool product be carried out shaping, so not only expend a large amount of human and material resources, reduce greatly production efficiency, but also exist a lot of defective products.
Summary of the invention
For solving the band ear existing defective of product stripping device and problem in the prior art, provide a kind of interval pop-up type demoulding device.
The present invention is that the technical scheme that its technical problem of solution adopts is: interval pop-up type demoulding device of the present invention comprises dynamic model and cover half, dynamic model is provided with die cavity, fuse, brute spring, fixed head and thimble, one push pedal is set between cavity plate and fixed head, nitrogen spring is installed in cover half, the elastic force of nitrogen spring is greater than the elastic force of brute spring, under the effect of nitrogen spring elastic force, between dynamic model and cover half, form a main parting line, between cavity plate and push pedal, form die joint one time, be equipped with external drum at die cavity and fuse, the gradient of the external drum on the die cavity is less than the external drum gradient on the fuse, the gradient of the external drum on the die cavity is 0.84 °, external drum gradient on the fuse is 2.82 °, and when the distance between fixed head and push pedal was 10mm, the cavity between fuse and the product was greater than the set external drum amount of die cavity.
The invention has the beneficial effects as follows: compared with prior art, interval pop-up type demoulding device of the present invention adopts two parting surface structures, main parting line is opened first when die sinking, guarantee that product stays in the dynamic model die cavity, and then open time die joint, because the external drum gradient on the die cavity is less than the external drum gradient on the fuse, therefore after fixed head 10mm is left in push pedal, cavity between fuse and the product is greater than the set external drum amount of die cavity, the product that thimble just can easily have been backed out fuse ejects in die cavity, and the product after the demoulding is because doing in advance external drum, and outward appearance is straight after its moulding, save workload and the steady quality of shaping, improved greatly production efficiency.
Description of drawings
Below in conjunction with the drawings and specific embodiments interval pop-up type demoulding device of the present invention is described further.
Fig. 1 is the structural representation of interval pop-up type demoulding device of the present invention.
The specific embodiment
As shown in Figure 1, interval pop-up type demoulding device of the present invention comprises dynamic model 10, cover half 20 and push pedal 30.Dynamic model 10 is provided with die cavity 11, fuse 12, brute spring 13, fixed head 14 and thimble 15.Push pedal 30 is arranged between die cavity 11 plates and the fixed head 14.Two nitrogen springs 21 are installed in cover half 20, the elastic force of nitrogen spring 21 is greater than the elastic force of brute spring 13, when die sinking, because the elastic force of nitrogen spring 21 is greater than the elastic force of brute spring 13, therefore under the effect of nitrogen spring 21 elastic force, then under brute spring 13 effects, between die cavity 11 and push pedal 14, form die joint 2 one time.Be equipped with external drum at die cavity 11 and fuse 12, the external drum Main Function is to offset the indent that product produces when demoulding after-contraction, the gradient of the external drum on the die cavity 11 is generally 0.84 °, external drum gradient on the fuse 12 is generally 2.82 °, and the external drum gradient on the die cavity 11 is less than the external drum gradient on the fuse 12.
As shown in Figure 1, in the work of reality, in the die sinking process, because the elastic force of nitrogen spring 21 is greater than the elastic force of brute spring 13, therefore under the effect of nitrogen spring 21 elastic force, between dynamic model 10 and cover half 20, form first a main parting line 1, this moment, product 0 all kept relative static with die cavity 11 and push pedal 30, cover half 20 breaks away from die cavities 11 at this moment, after cover half 20 breaks away from die cavity 11, because the elastic force effect of brute spring 13, between die cavity 11 and push pedal 14, form die joint 2 one time, die cavity 11 breaks away from fuse 12 1 segment distances with product, after the distance between die cavity 11 and the push pedal 14 is 10mm, after namely die cavity 11 distance that breaks away from fuse 12 with product is 10mm, because the external drum gradient on the die cavity 11 is less than the external drum gradient on the fuse 12, the amount of space of the external drum that therefore on the space between fuse 12 and the product will be greater than die cavity 11, is provided with, just can easily in die cavity 11, eject product 0 with thimble at this moment, and the back taper phenomenon can not occur, because the product after the demoulding is because doing in advance external drum, can not produce the indent phenomenon after its demoulding, outward appearance is straight after its moulding, save workload and the steady quality of shaping, improved greatly production efficiency.
According to embodiments of the invention describing the present invention property and nonrestrictive description, but should be understood that in the situation that do not break away from relevant protection domain defined by the claims, those skilled in the art can make change and/or revise.
Claims (3)
1. interval pop-up type demoulding device, comprise dynamic model and cover half, dynamic model is provided with die cavity, fuse, brute spring, fixed head and thimble, it is characterized in that, one push pedal is set between cavity plate and fixed head, nitrogen spring is installed in cover half, the elastic force of described nitrogen spring is greater than the elastic force of brute spring, under the effect of nitrogen spring elastic force, between described dynamic model and cover half, form a main parting line, form die joint one time between cavity plate and push pedal, be equipped with external drum at die cavity and fuse, the gradient of the external drum on the described die cavity is less than the external drum gradient on the fuse.
2. interval pop-up type demoulding device according to claim 1 is characterized in that, the gradient of the external drum on the described die cavity is 0.84 °, and the external drum gradient on the fuse is 2.82 °.
3. interval pop-up type demoulding device according to claim 1 and 2 is characterized in that, when the distance between described fixed head and push pedal was 10mm, the cavity between fuse and the product was greater than the set external drum amount of die cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010045851 CN101811342B (en) | 2010-01-18 | 2010-01-18 | Interval pop-up type demoulding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010045851 CN101811342B (en) | 2010-01-18 | 2010-01-18 | Interval pop-up type demoulding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101811342A CN101811342A (en) | 2010-08-25 |
| CN101811342B true CN101811342B (en) | 2013-03-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010045851 Expired - Fee Related CN101811342B (en) | 2010-01-18 | 2010-01-18 | Interval pop-up type demoulding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101811342B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474259B (en) * | 2013-09-24 | 2016-06-22 | 苏州赛斯德工程设备有限公司 | A kind of columnar capacitor demoulding press |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000061954A (en) * | 1998-08-24 | 2000-02-29 | Tdk Corp | Mold and molding method |
| CN1365883A (en) * | 2001-01-19 | 2002-08-28 | 埃－泰克技术开发有限公司 | Die assembly block used for injection moulding |
| JP2002347085A (en) * | 2001-05-25 | 2002-12-04 | Citizen Electronics Co Ltd | Injection-molding mold |
| CN2863427Y (en) * | 2005-12-09 | 2007-01-31 | 安徽省宁国中鼎股份有限公司 | Novel plastic dirt guard die |
| CN201579910U (en) * | 2010-01-18 | 2010-09-15 | 厦门市松竹精密科技有限公司 | Spring type fast demoulding device |
-
2010
- 2010-01-18 CN CN 201010045851 patent/CN101811342B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000061954A (en) * | 1998-08-24 | 2000-02-29 | Tdk Corp | Mold and molding method |
| CN1365883A (en) * | 2001-01-19 | 2002-08-28 | 埃－泰克技术开发有限公司 | Die assembly block used for injection moulding |
| JP2002347085A (en) * | 2001-05-25 | 2002-12-04 | Citizen Electronics Co Ltd | Injection-molding mold |
| CN2863427Y (en) * | 2005-12-09 | 2007-01-31 | 安徽省宁国中鼎股份有限公司 | Novel plastic dirt guard die |
| CN201579910U (en) * | 2010-01-18 | 2010-09-15 | 厦门市松竹精密科技有限公司 | Spring type fast demoulding device |
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| Publication number | Publication date |
|---|---|
| CN101811342A (en) | 2010-08-25 |
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Granted publication date: 20130327 Termination date: 20160118 |
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| EXPY | Termination of patent right or utility model |