CN102922681A - One-step molding injection mold of scale pan arrester - Google Patents
One-step molding injection mold of scale pan arrester Download PDFInfo
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- CN102922681A CN102922681A CN2012104357983A CN201210435798A CN102922681A CN 102922681 A CN102922681 A CN 102922681A CN 2012104357983 A CN2012104357983 A CN 2012104357983A CN 201210435798 A CN201210435798 A CN 201210435798A CN 102922681 A CN102922681 A CN 102922681A
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- feeding groove
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Abstract
The invention discloses a one-step molding injection mold of a scale pan arrester. The mold comprises a male mold and a female mold, wherein a feeding groove is arranged on a joint face of the female mold, the feeding groove is communicated with a feeding hole, the feeding hole penetrates through a mold frame of the female mold, and a through-hole which is communicated with the inner end of the feeding groove is arranged on the inner wall of a cavity of the female mold, the feeding groove is not communicated with the inside of the cavity directly, but passes through a through-hole, then a material is injected into the cavity, the advantage is that after a product is formed, the product and a material handle (i.e., formed portions of the feeding groove) are not connected together, the product is connected with a defective material at the position of the through-hole, the through-hole is small, during demolding, the portion where the product is combined with the defective material at the position of the through-hole is cut off by the edge of the through-hole, and therefore, when the product is pushed out, the product is not required to be processed again, so that the labor cost is reduced and the rejection rate of the product is reduced. The mold belongs to the mold technical field.
Description
Technical field
The present invention relates to a kind of mould, relate to or rather a kind of balance on goods and services in-mould decoration mould
Background technology
Product is used balance on goods and services for teaching as shown in Figure 1, belongs to the science and education field, is used for doing to the student on the classroom assembly of experiment or demonstration usefulness.The feed well of existing mold directly is communicated with die cavity along die joint, and when causing the demoulding, product and material handle still link together, and needs again will to expect that handle cuts off from product, many one cutting actions.Required cost of labor of balance on goods and services of moulding is higher, and in addition, material handle and product junction cutting part are complete during cutting, cause product rejection.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of balance on goods and services in-mould decoration mould that reduces cost of labor, reduces scrappage is provided.
The solution that the present invention takes is: a kind of balance on goods and services in-mould decoration mould, comprise male model, master mold, the die joint of described master mold is provided with feed well, feed well is communicated with charging hole, charging hole runs through the framed of master mold, and the case mold cavity wall is provided with the through hole of a connection feed well the inner.
Described through hole is inclined to set.
Described master mold is provided with two die cavities.
The invention has the beneficial effects as follows: after adopting above structure, balance on goods and services in-mould decoration mould of the present invention compared with prior art, have the following advantages: feed well of the present invention is not directly to extend in the die cavity, but will expect again to annotate in die cavity through a through hole, after the benefit of doing like this is exactly shaped article, do not link together between product and the material handle (being the part of feed well place moulding), product places the defective material of through hole to connect, but because through hole is very little, in the time of the demoulding, the defective material bound fraction of product and through hole is sliced off by the through hole edge, when therefore product is located on the top, what obtain has been a finished product that need not again to process, and has reduced cost of labor and has also reduced product rejection rate.
As improvement, described through hole is inclined to set, and the through hole edge is sharper, better the defective material bound fraction of cutting products and through hole.
As improvement, described master mold is provided with two die cavities, so die sinking can obtain two products, has improved production efficiency.
Description of drawings
Fig. 1 is existing balance on goods and services schematic diagram.
Fig. 2 is the male model schematic diagram.
Fig. 3 is the master mold schematic diagram.
Shown in the figure: 1, male model, 2, master mold, 2.1, feed well, 2.2, charging hole, 2.3, through hole, 2.4, die cavity.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
With reference to Fig. 1-Fig. 3, a kind of balance on goods and services in-mould decoration of the present invention mould, comprise male model 1, master mold 2, the die joint of described master mold 2 is provided with feed well 2.1, feed well 2.1 is communicated with charging hole 2.2, charging hole 2.2 runs through the framed of master mold 2, is convenient to inject material from the back side of master mold 2, and master mold 2 die cavity inwalls are provided with the through hole 2.3 of a connection feed well 2.1 the inners.The through hole 2.3 inner die cavity .4 that are communicated with.
Described through hole 2.3 is inclined to set, and through hole 2.3 edges are sharper, better the defective material bound fraction at cutting products and through hole 2.3 places.
Described master mold 2 is provided with two die cavities 2.4.Therefore die sinking can obtain two products, has improved production efficiency.
Feed well 2.1 of the present invention is not directly to extend in the die cavity 2.4, but will expect again to annotate in die cavity 2.4 through a through hole 2.3, after the benefit of doing like this is exactly shaped article, do not link together between product and the material handle (being the part of feed well place moulding), product places the defective material of through hole to connect, but because through hole is very little, in the time of the demoulding, the defective material bound fraction of product and through hole is sliced off by the through hole edge, when therefore product is located on the top, what obtain has been a finished product that need not again to process, and has reduced cost of labor and has also reduced product rejection rate.
Claims (3)
1. balance on goods and services in-mould decoration mould, comprise male model (1), master mold (2), it is characterized in that: the die joint of described master mold (2) is provided with feed well (2.1), feed well (2.1) is communicated with charging hole (2.2), charging hole (2.2) runs through the framed of master mold (2), and master mold (2) die cavity inwall is provided with one and is communicated with the inner through hole (2.3) of feed well (2.1).
2. balance on goods and services in-mould decoration mould according to claim 1, it is characterized in that: described through hole (2.3) is inclined to set.
3. balance on goods and services in-mould decoration mould according to claim 1, it is characterized in that: described master mold (2) is provided with two die cavities (2.4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210435798.3A CN102922681B (en) | 2012-10-26 | 2012-10-26 | One-step molding injection mold of scale pan arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210435798.3A CN102922681B (en) | 2012-10-26 | 2012-10-26 | One-step molding injection mold of scale pan arrester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102922681A true CN102922681A (en) | 2013-02-13 |
| CN102922681B CN102922681B (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210435798.3A Active CN102922681B (en) | 2012-10-26 | 2012-10-26 | One-step molding injection mold of scale pan arrester |
Country Status (1)
| Country | Link |
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| CN (1) | CN102922681B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1958266A (en) * | 2005-11-04 | 2007-05-09 | 鸿富锦精密工业（深圳）有限公司 | Structure of mould |
| JP2009154385A (en) * | 2007-12-26 | 2009-07-16 | Central Glass Co Ltd | Injection molding die |
| CN202016166U (en) * | 2010-10-19 | 2011-10-26 | 东莞信柏塑胶有限公司 | Injection mold with less waste materials at feed openings |
| CN202934763U (en) * | 2012-10-26 | 2013-05-15 | 宁波青华科教仪器有限公司 | Injection mould for one-step molding balance tray |
-
2012
- 2012-10-26 CN CN201210435798.3A patent/CN102922681B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1958266A (en) * | 2005-11-04 | 2007-05-09 | 鸿富锦精密工业（深圳）有限公司 | Structure of mould |
| JP2009154385A (en) * | 2007-12-26 | 2009-07-16 | Central Glass Co Ltd | Injection molding die |
| CN202016166U (en) * | 2010-10-19 | 2011-10-26 | 东莞信柏塑胶有限公司 | Injection mold with less waste materials at feed openings |
| CN202934763U (en) * | 2012-10-26 | 2013-05-15 | 宁波青华科教仪器有限公司 | Injection mould for one-step molding balance tray |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102922681B (en) | 2014-11-26 |
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Address after: Three road 315600 Zhejiang science and Technology Park of Ninghai County, Ningbo Province, No. 15 Qinghua science and Education Equipment Co. Ltd. Applicant after: Qinghua Science and Education Equipment Co., Ltd. Address before: Three road 315600 Zhejiang science and Technology Park of Ninghai County, Ningbo Province, No. 15 Qinghua science and Education Equipment Co. Ltd. Applicant before: Ningbo Qinghua Science and Education Equipment Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: NINGBO QINGHUA SCIENCE + EDUCATION EQUIPMENT CO., LTD. TO: QINGHUA SCIENCE AND EDUCATION EQUIPMENT CO., LTD. |
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