CN103587036A - Injection mold and manufacture method of high mirror surface of product surface - Google Patents
Injection mold and manufacture method of high mirror surface of product surface Download PDFInfo
- Publication number
- CN103587036A CN103587036A CN201310537085.2A CN201310537085A CN103587036A CN 103587036 A CN103587036 A CN 103587036A CN 201310537085 A CN201310537085 A CN 201310537085A CN 103587036 A CN103587036 A CN 103587036A
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- CN
- China
- Prior art keywords
- mold
- master mold
- die
- cooling block
- injection
- Prior art date
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76531—Temperature
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses an injection mold including an upper mold base, an upper template, a cooling block and a lower template. The upper template is arranged below the upper mold base; the cooling block is arranged on the inner side of the upper template, and a cooling channel is arranged inside the cooling block; the lower template is arranged below the upper template, a mold kernel is arranged between the upper template and the lower template, and the mold kernel is contacted with the cooling block and is internally provided with a heating device. The invention also provides a manufacture method of a high mirror surface of a product surface. The manufacture method comprises the following steps: (1) when the mold is opened, starting to heat a female mold; (2) when the mold begins to clamp, stopping heating the female mold; and (3) after clamping and during an injection pressure-keeping process, cooling the mold. The mold and the method can allow the product to have high-light surface and traceless effect and to be realized without electroplating, thereby reducing secondary processing of the product.
Description
Technical field
The present invention relates to the preparation method of a kind of injection mold and the high minute surface of product surface.
Background technology
Product appearance part need to be accomplished high minute surface, and ordinary circumstance need to adopt polishing mould to realize or electroplate at product surface, to reach needed outward appearance.If adopt polishing to reach high minute surface product, but actual injection moulding product minute surface degree is out inadequate, does not reach needed effect, if electroplated at product surface, and secondary operations, plating price is high, and electrodeposited coating is bad, and electrodeposited coating can come off.
Summary of the invention
The present invention is intended at least solve one of technical problem existing in prior art.
For addressing the above problem, one aspect of the present invention proposes a kind of injection mold, comprising: upper bolster; Cope match-plate pattern, described cope match-plate pattern is located at the below of described upper bolster; Cooling block, described cooling block is located at the inner side of described cope match-plate pattern, and cooling block inside is provided with cooling duct; Lower bolster, described lower bolster is located at the below of described cope match-plate pattern, between described cope match-plate pattern and lower bolster, is provided with die, described die contact with described cooling block and described die in be provided with heater.
According to injection mold of the present invention by by heater near die, by cooling block near heater, thereby can make die Fast Heating and cooling fast, thereby the realization legal system that colds and heat succeed each other is made the high minute surface of product surface.
In addition, according to injection mold of the present invention, also there is following additional technical feature:
Preferably, described die is divided into male model and master mold, forms product die cavity between male model and master mold, and described heater is located in master mold.Because heater is positioned at master mold, when cooling, master mold temperature reduces rapidly, and that male model temperature declines is less, and die cavity is poor in feature die both sides formation temperature, and the moulding of master mold side early, forms rapidly Gao Guang, seamless surface.
Preferably, described heater is heating rod.Thus, by electrical heating, make master mold quick heating.
Preferably, described heating rod is connected with Mold Temperature Regulator.
Preferably, described heating rod is several, is divided into two rows and is arranged in described master mold.Can make like this master mold heat up faster.In addition, as preferably, described some heating rods are between the upper surface of master mold and the lower surface of cooling block, and together with heating rod, the upper surface of master mold and the lower surface three of cooling block fit tightly.Like this, increased the heat exchanger effectiveness between cooling block and master mold when cooling, temperature that can fast reducing master mold.
The present invention proposes the preparation method of the high minute surface of a kind of product surface on the other hand, comprises the following steps:
(1), when mould die sinking, start to heat master mold;
(2), when mould has just started matched moulds, stop heating master mold;
(3) after matched moulds in Injection hold pressure process, cooling die.
The method according to this invention, by make product surface reach Gao Guang, seamless effect in the method for colding and heat succeed each other, and owing to being cool time after matched moulds, and remain in Injection hold pressure process, therefore master mold temperature reduces rapidly, and the decline of male model temperature is less, and die cavity is poor in feature die both sides formation temperature, the moulding of master mold side early, forms rapidly Gao Guang, seamless surface.Therefore mould of the present invention and method can make product have surperficial Gao Guang, seamless effect and not need to electroplate to realize, and have reduced the secondary operations to product.
In addition, the method according to this invention also has following additional technical feature:
Preferably, in described step (1), master mold temperature is brought up to the melt temperature of plastics.Preferably master mold temperature is brought up to the melt temperature of plastics in 30 seconds, heated up and not only can increase work efficiency fast, be more conducive to produce in die cavity both sides temperature difference.Make in die cavity both sides, to form the different flow directions when injection moulding, die cavity is changed in feature die both sides temperature difference, experiment showed, the high minute surface degree that can obviously improve product surface.
Preferably, in described step (1), melt temperature is 140 °-240 °.The temperature needing is according to product size, and material etc. decide.
Preferably, in described step (1), adopt electrical heating.
Preferably, in described step (3), Injection hold pressure made master mold be cooled to below 15 ° after completing in 30 seconds.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination obviously and is easily understood becoming the description of embodiment, wherein:
Fig. 1 is the structural representation of a kind of injection mold of the present invention.
description of reference numerals:
Upper bolster 1; Cope match-plate pattern 2; Cooling block 3; Lower bolster 4; Male model 5; Master mold 6; Die shoe 7.
The specific embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, for example, can be mechanical connection or electrical connection, can be also the connection of two element internals, can be to be directly connected, also can indirectly be connected by intermediary.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
Below with reference to Fig. 1, describe according to a kind of injection mold of the embodiment of the present invention.As shown in Figure 1, injection mold of the present invention comprises upper bolster 1, cope match-plate pattern 2, cooling block 3, lower bolster 4, male model 5, master mold 6 and die shoe 7.
Cope match-plate pattern 2 is located at the below of described upper bolster 1; Cooling block 3 is located at the inner side of described cope match-plate pattern 2, and cooling block 3 inside are provided with cooling duct; Lower bolster 4 is located at the below of described cope match-plate pattern 2, between described cope match-plate pattern 2 and lower bolster 4, is provided with die, described die contact with described cooling block 3 and described die in be provided with heater; Die shoe 7 is located at the below of described lower bolster 4.Described die is divided into male model 5 and master mold 6, between male model 5 and master mold 6, forms product die cavity, and described heater is located in master mold 6.Because heater is positioned at master mold 6, when cooling, master mold 6 temperature reduce rapidly, and that male model 5 temperature decline is less, and die cavity is poor in feature die 6 both sides formation temperatures, and master mold 6 side moulding early, form rapidly Gao Guang, seamless surface.
Described heater is heating rod.Described heating rod is connected with Mold Temperature Regulator.Described heating rod is several, is divided into two rows and is arranged in described master mold 6.Can make like this master mold 6 heat up faster.In addition, as preferably, described some heating rods are between the upper surface of master mold 6 and the lower surface of cooling block 3, and together with heating rod, the upper surface of master mold 6 and the lower surface three of cooling block 3 fit tightly.Like this, increased the heat exchanger effectiveness between cooling block 3 and master mold 6 when cooling, temperature that can fast reducing master mold 6.
A kind of method of utilizing above-mentioned injection mold to make the high minute surface of product surface of the present invention, comprises the following steps:
(1), when mould die sinking, start to heat master mold 6;
(2), when mould has just started matched moulds, stop heating master mold 6;
(3) after matched moulds in Injection hold pressure process, cooling die.
The method according to this invention, by make product surface reach Gao Guang, seamless effect in the method for colding and heat succeed each other, and owing to being cool time after matched moulds, and remain in Injection hold pressure process, therefore master mold 6 temperature reduce rapidly, and male model 5 temperature declines are less, and die cavity is poor in feature die 6 both sides formation temperatures, master mold 6 side moulding early, form rapidly Gao Guang, seamless surface.Therefore mould of the present invention and method can make product have surperficial Gao Guang, seamless effect and not need to electroplate to realize, and have reduced the secondary operations to product.
Particularly, in described step (1), master mold 6 temperature are brought up to 220 ° of the melt temperatures of plastics in 30 seconds.Heat up and not only can increase work efficiency fast, be more conducive to produce in die cavity both sides temperature difference.Make in die cavity both sides, to form the different flow directions when injection moulding, die cavity is changed in feature die 6 both sides temperature differences, experiment showed, the high minute surface degree that can obviously improve product surface.In described step (3), Injection hold pressure made master mold 6 be cooled to 15 ° after completing in 30 seconds.Chilling temperature also can exert an influence to product surface, and in the present embodiment, cooling 15 ° is optimal selection.
In the description of this description, the description of reference term " embodiment ", " example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited by claim and equivalent thereof.
Claims (10)
1. an injection mold, is characterized in that, comprising:
Upper bolster;
Cope match-plate pattern, described cope match-plate pattern is located at the below of described upper bolster;
Cooling block, described cooling block is located at the inner side of described cope match-plate pattern, and cooling block inside is provided with cooling duct;
Lower bolster, described lower bolster is located at the below of described cope match-plate pattern, between described cope match-plate pattern and lower bolster, is provided with die, described die contact with described cooling block and described die in be provided with heater.
2. injection mold according to claim 1, is characterized in that, described die is divided into male model and master mold, forms product die cavity between male model and master mold, and described heater is located in master mold.
3. injection mold according to claim 2, is characterized in that, described heater is heating rod.
4. injection mold according to claim 3, is characterized in that, described heating rod is connected with Mold Temperature Regulator.
5. injection mold according to claim 3, is characterized in that, described heating rod is several, is divided into two rows and is arranged in described master mold.
6. a preparation method for the high minute surface of product surface, is characterized in that, comprises the following steps:
(1), when mould die sinking, start to heat master mold;
(2), when mould has just started matched moulds, stop heating master mold;
(3) after matched moulds in Injection hold pressure process, cooling die.
7. method according to claim 6, is characterized in that, in described step (1), in 30 seconds, master mold temperature is brought up to the melt temperature of plastics.
8. method according to claim 6, is characterized in that, in described step (1), melt temperature is 140 °-240 °.
9. method according to claim 6, is characterized in that, adopts electrical heating in described step (1).
10. method according to claim 6, is characterized in that, in described step (3), Injection hold pressure made master mold be cooled to below 15 ° after completing in 30 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310537085.2A CN103587036A (en) | 2013-11-04 | 2013-11-04 | Injection mold and manufacture method of high mirror surface of product surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310537085.2A CN103587036A (en) | 2013-11-04 | 2013-11-04 | Injection mold and manufacture method of high mirror surface of product surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103587036A true CN103587036A (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310537085.2A Pending CN103587036A (en) | 2013-11-04 | 2013-11-04 | Injection mold and manufacture method of high mirror surface of product surface |
Country Status (1)
| Country | Link |
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| CN (1) | CN103587036A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196482A (en) * | 2015-10-22 | 2015-12-30 | 泰逸电子（昆山）有限公司 | Mold for bottom cover of notebook computer |
| CN111634089A (en) * | 2020-06-09 | 2020-09-08 | 四川恒鑫丽泰新材料科技有限公司 | High-gloss mirror PVC plate and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004042501A (en) * | 2002-07-12 | 2004-02-12 | Ikegami Kanagata Kogyo Kk | Injection mold |
| US7118372B2 (en) * | 2002-05-15 | 2006-10-10 | Krauss-Maffei Kunststofftechnik Gmbh | Molding tool having a heating and cooling medium |
| CN201240042Y (en) * | 2008-07-01 | 2009-05-20 | 广州毅昌科技股份有限公司 | High gloss injection mold |
| CN101722596A (en) * | 2009-11-19 | 2010-06-09 | 中国华录·松下电子信息有限公司 | Quick heating and quick cooling highlight molding die |
-
2013
- 2013-11-04 CN CN201310537085.2A patent/CN103587036A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7118372B2 (en) * | 2002-05-15 | 2006-10-10 | Krauss-Maffei Kunststofftechnik Gmbh | Molding tool having a heating and cooling medium |
| JP2004042501A (en) * | 2002-07-12 | 2004-02-12 | Ikegami Kanagata Kogyo Kk | Injection mold |
| CN201240042Y (en) * | 2008-07-01 | 2009-05-20 | 广州毅昌科技股份有限公司 | High gloss injection mold |
| CN101722596A (en) * | 2009-11-19 | 2010-06-09 | 中国华录·松下电子信息有限公司 | Quick heating and quick cooling highlight molding die |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196482A (en) * | 2015-10-22 | 2015-12-30 | 泰逸电子（昆山）有限公司 | Mold for bottom cover of notebook computer |
| CN111634089A (en) * | 2020-06-09 | 2020-09-08 | 四川恒鑫丽泰新材料科技有限公司 | High-gloss mirror PVC plate and preparation method thereof |
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Application publication date: 20140219 |