CN101537684A - Polyurethane foam forming mould and manufacturing method of mould cavities - Google Patents
Polyurethane foam forming mould and manufacturing method of mould cavities Download PDFInfo
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- CN101537684A CN101537684A CN200810163753A CN200810163753A CN101537684A CN 101537684 A CN101537684 A CN 101537684A CN 200810163753 A CN200810163753 A CN 200810163753A CN 200810163753 A CN200810163753 A CN 200810163753A CN 101537684 A CN101537684 A CN 101537684A
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Abstract
The invention discloses a polyurethane foam forming mould and a manufacturing method of mould cavities. The mould comprises a mould frame, mould cavities, filling layers between the mould frame and the mould cavities, a locking device and a mould opening and closing device; the mould cavities are made of crystalline resin materials; an exhaust hole is arranged on the lower mould cavity; spew grooves are respectively arranged on the upper mould cavity and the lower mould cavity; and a blade parting surface and an upper and lower mould cavity positioning surface are respectively arranged on the upper mould cavity and the lower mould cavity. The mould cavities are made of the crystalline resin materials, and the manufacturing method of the mould cavities comprises the following steps: firstly designing the mould cavities by using a computer three-dimensional design software and then manufacturing the mould cavities by adopting the CNC numerical control processing, the injection-moulding processing, the rapid forming processing and the vacuum moulding processing methods. The invention solves the technical problems that a mould cavity parting line between an aluminum alloy casting mould and an epoxy resin mould has worse matching, the mould cavities are required to be coated with mould release agents, and formed products are easy to generate flash edges, so that the forming processing efficiency of similar products is improved, thereby reducing the production cost and improving the availability of resources.
Description
Technical field
The present invention relates to a kind of toys mould, is to be shaping mould with the polyurethane material foaming, makes toy product and the mould that designs.
Background technology
The polyurethane foaming forming technique be the polyurethane raw material under the effect of blowing agent, in the die cavity of closure,, make soft product through behind the foaming.The plasticity of product-forming is strong, and color is abundant, product development cycle and with short production cycle.Be products such as manufacturing process product and toy methods preferably.
The mould of polyurethane material foaming mainly contains following two kinds at present:
One, aluminium alloy casting mould, this is present the most widely used mould.The cavity surface smoothness of aluminium alloy casting mould is not fine; The dimensional uniformity of the processing die cavity of technologies such as process polishing simultaneously is poor; Lacquer has associativity preferably in the mould that aluminum alloy materials and polyurethane foaming are used; The parting line of two die cavitys up and down of aluminium alloy casting mould is not a tight connecting.Since the cavity surface smoothness of aluminium alloy casting mould be not fine and the mould used of aluminum alloy materials and polyurethane foaming in lacquer associativity is preferably arranged, make the polyurethane foamed molded product in foamed forming process, must use releasing agent ability ordinary production.Use behind the releasing agent following process of polyurethane foamed molded product such as the outer floating coat of jet mould and printing have been caused difficulty, caused the surface smoothness of product bad simultaneously.The dimensional uniformity of the die cavity of aluminium alloy casting mould is poor, makes consistency of product be difficult to control, the difficulty of following process is strengthened, as make the contraposition difficulty of the mould that sprays paint.The parting line of two die cavitys up and down of aluminium alloy casting mould is not unusual tight connecting, and the product of polyurethane foaming has been produced " overlap " phenomenon must be carried out deburring in following process.The aluminium alloy casting mould can only be worked as the aluminium scrap processing when product is no longer produced, recycling value is very low.
Two, epoxy resin mould, this mould use at present is considerably less, and epoxy resin mould not only exists outside the shortcoming that has with the aluminium alloy casting mould, and its service life is shorter, is difficult to satisfy industrialized mass production.At present, this mould is mainly used in the trial-production of product and draws a design, and does not also have the value that reclaims when mould can't use.
Summary of the invention
For solving above-mentioned technical problem, the present invention provides a kind of manufacture method that is used for polyurethane foaming molding mold and die cavity.It is relatively poor that its die cavity parting line that can solve aluminium alloy casting mould and epoxy resin mould existence is coincide, die cavity palpus coating release agent, and shaped article easily produces the technical problem of " overlap ".The objective of the invention is to adopt following technical scheme to realize.
A kind of polyurethane foaming molding mold, these Mould design main points are to comprise the mould bases that is configured to by top mold frame and counterdie, with the die cavity that is made of upper cavity and lower mode cavity that the crystalline resin material is made, the packed layer between mould bases and the die cavity, locking device, folding mould device.Concrete structure is seen accompanying drawing 1～2, its following content:
1) this mould adopts the crystalline resin material to make die cavity, and the cavity surface that the crystalline resin material is made is smooth, makes polyurethane material that release property and surface skining preferably be arranged when foaming.Make the polyurethane foamed products in the foaming production process, needn't use releasing agent, not only reduced production cost of products, reduced pollution, make product obtain the surface of light simultaneously environment.Make the polyurethane foamed products outside following process such as jet mould floating coat and printing easily, make simultaneously outer floating coat of mould and printing-ink and product surface to combine fastness better.The product effect that Fig. 5 aluminium alloy casting mould and mould of the present invention are produced relatively, a among Fig. 5 is the circular product with mould foaming of the present invention, b is the circular product with aluminium alloy casting mould foaming, and the middle part just produces " overlap " and rough raised line.
2) manufacture method of the die cavity made of crystalline resin material is: design with the computer Three-dimensional Design Software earlier, adopt that CNC digital control processing, injection moulding processing, rapid shaping are processed, the manufacturing of type vacuum injecting and forming processing method again.The die cavity of producing with this method does not need polishing, just will obtain surface smoothness preferably, the consistent size of each die cavity of manufacturing.The unanimity of each product size of foaming makes outer floating coat of following process jet mould and printing seem convenient.
3) the present invention is provided with the die joint of knife edge type, die cavity locating surface, flash groove and steam vent up and down on die cavity, sees accompanying drawing 2.
3.1 the knife edge type die joint and up and down the die cavity locating surface make two die cavitys up and down in conjunction with accurate.
3.2 steam vent makes, and the air in the die cavity obtains discharging in the foaming process.
3.3 flash groove makes the redundance in the die cavity obtain discharging.
By 3.1,3.2,3.3 enforcement makes the polyurethane foamed molded product accomplish there be not " overlap " in foamed forming process.Make the polyurethane foamed molded product need not to carry out follow-up deburring work, the aesthetics of product obtains upgrading.
4) the present invention has fully taken into account the problem of cycling and reutilization in the mold integral design process.Design has the die cavity alignment pin on die cavity up and down, is being provided with the die cavity locating hole on the mould bases up and down.When needs are changed product or die cavity and are damaged, only need the die cavity in the mold exchange more to get final product, can not influence the precision of mould, miscellaneous parts such as mould bases are just realized general.So promptly reduced the input of mould development, also fully realized utilization more simultaneously resource.
The die cavity parting line that the invention solves the existence of aluminium alloy casting mould and epoxy resin mould is identical relatively poor, die cavity palpus coating release agent, and shaped article easily produces the technical problem of " overlap ".The processing and forming efficient of like product is improved, reduced production cost, improved the utilization rate of resource.
Description of drawings
Fig. 1 is a mould die opening state structural representation.
Fig. 2 is the schematic top plan view of Fig. 1.
Upper and lower die cavity matched moulds state among Fig. 3 Fig. 1, single-piece crystalline resins material mold cavity configuration schematic diagram has been done the part and has been confined among the figure.
Fig. 4 is the enlarged drawing that Fig. 3 confines the position.
A and two product effects of b comparison diagram that aluminium alloy casting mould that Fig. 5 is and mould of the present invention are produced.
Fig. 6 is a mould open/close mould schematic diagram, and upper arrow is the direction signal of die sinking and matched moulds among the figure, and the next arrow is the direction signal of mold open or locking.
Fig. 7 is a die cavity alignment pin location schematic diagram.
Fig. 8 is a die cavity locating hole location schematic diagram.
The specific embodiment
Consult the structural representation of the polyurethane foaming molding mold of Fig. 1～2.Have locking device 1, lower mode cavity 2, following mould bases 3, folding mould device 4, top mold frame 5, upper cavity 6, packed layer 7 formations.Locking device is used for locking mould, lower mode cavity and upper cavity are the main bodys of product foaming, the main body that following mould bases and following mould bases are supporting moulds, folding mould device is the rotary part of mould open/close, packed layer is the space of filling between lower mode cavity, upper cavity and top mold frame, the following mould bases, to increase the intensity of mould.Mould open/close mould schematic diagram is seen Fig. 6.
Fig. 3, Fig. 4, the structural representation of the die cavity of making for crystalline material in the polyurethane foaming molding mold.The die cavity that crystalline material is made among the figure comprises lower mode cavity 2, upper cavity 6.Die cavity is provided with die cavity alignment pin 8, upper and lower mould locating surface 9, knife edge type die joint 10, flash groove 11, steam vent 12 up and down.
Described upper cavity 6 and lower mode cavity 2 have been selected crystalline material for use, and the crystalline material cavity surface fineness that has polypropylene and polyethylene, the material of the type to make commonly used is good, make the polyurethane foamed molded product obtain bright and clean surface; The die cavity that the material of the type is made has extraordinary solvent resistance, and does not have adhesive with polyurethane material, makes the demoulding that is easy to of polyurethane foamed molded product, thereby does not use the releasing agent that originally must use.Owing to do not use releasing agent, it is residual that product surface does not just have releasing agent, so just make the polyurethane foamed products following process such as jet mould outside floating coat and printing easily, make simultaneously floating coat and printing-ink and product surface outside the mould to combine fastness good.
Described lower mode cavity 2 is provided with steam vent 12, and steam vent makes the air in the die cavity in the foaming process obtain discharging.
Consult Fig. 7, Fig. 8, upper cavity 6 and lower mode cavity 2 are provided with die cavity alignment pin 8, and design has die cavity locating hole 13 on top mold frame 5 and the following mould bases 3.The location dimension D2 of the location dimension D1 of die cavity upper cavity alignment pin and the die cavity locating hole on the mould bases equates; The location dimension D4 of the location dimension D3 of die cavity upper cavity alignment pin and the die cavity locating hole on the mould bases equates.Change the die cavity that only needs when product or die cavity damage in the mold exchange more when needs and get final product, can not influence the precision of mould, other parts such as mould bases are just realized general.So promptly reduced the input of mould development, also fully realized utilization more simultaneously resource.
Claims (3)
1, a kind of polyurethane foaming molding mold, this mould is characterised in that and comprises the mould bases that is made of top mold frame (5) and following mould bases (3), the die cavity made from the crystalline resin material that constitutes by upper cavity (6) and lower mode cavity (2), packed layer between mould bases and the die cavity (7), locking device (1), folding mould device (4); This mould adopts the crystalline resin material to make die cavity; Described lower mode cavity (2) is provided with steam vent (12), and upper cavity (6) and lower mode cavity are provided with flash groove (11), and upper cavity and lower mode cavity are provided with knife edge type die joint (10) and die cavity locating surface (9) up and down; On upper and lower die cavity, be provided with die cavity alignment pin (8), on upper and lower mould bases, be provided with die cavity locating hole (13).
2, polyurethane foaming molding mold as claimed in claim 1 is characterized in that the location dimension D2 of the location dimension D1 of die cavity upper cavity (6) alignment pin (8) and the die cavity locating hole (13) on the mould bases equates; The location dimension D4 of the location dimension D3 of die cavity upper cavity alignment pin (8) and the die cavity locating hole (13) on the mould bases equates.
3, a kind of manufacture method of polyurethane foaming molding mold die cavity, it is characterized in that die cavity made by the crystalline resin material, the manufacture method of die cavity is: design with the computer Three-dimensional Design Software earlier, adopt CNC digital control processing, injection moulding processing, rapid shaping processing, the manufacturing of type vacuum injecting and forming processing method again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810163753A CN101537684A (en) | 2008-12-31 | 2008-12-31 | Polyurethane foam forming mould and manufacturing method of mould cavities |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810163753A CN101537684A (en) | 2008-12-31 | 2008-12-31 | Polyurethane foam forming mould and manufacturing method of mould cavities |
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| CN101537684A true CN101537684A (en) | 2009-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810163753A Pending CN101537684A (en) | 2008-12-31 | 2008-12-31 | Polyurethane foam forming mould and manufacturing method of mould cavities |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284847A (en) * | 2011-07-19 | 2011-12-21 | 南通超达机械科技有限公司 | Precise-guide die arrangement process for auto interior ornament moulding mould |
| CN103101219A (en) * | 2012-12-11 | 2013-05-15 | 郑州正力聚合物科技有限公司 | Mold for manufacturing catalyst |
| CN103101214A (en) * | 2012-12-11 | 2013-05-15 | 郑州正力聚合物科技有限公司 | Mold for manufacturing catalyst |
| CN103101220A (en) * | 2012-12-11 | 2013-05-15 | 郑州正力聚合物科技有限公司 | Mold for manufacturing catalyst |
| CN103101212A (en) * | 2012-12-11 | 2013-05-15 | 郑州正力聚合物科技有限公司 | Mold for manufacturing catalyst |
| CN103101213A (en) * | 2012-12-11 | 2013-05-15 | 郑州正力聚合物科技有限公司 | High-regularity catalyst molding mould |
| CN103100711A (en) * | 2013-01-11 | 2013-05-15 | 温岭市旭日滚塑科技有限公司 | Method of direct and rapid machining of rotational molding by lasher |
| CN103101215A (en) * | 2012-12-11 | 2013-05-15 | 郑州正力聚合物科技有限公司 | Mold for manufacturing catalyst |
| CN103101221A (en) * | 2012-12-11 | 2013-05-15 | 郑州正力聚合物科技有限公司 | Catalyst molding mould with positioning function |
| CN103101218A (en) * | 2012-12-11 | 2013-05-15 | 郑州正力聚合物科技有限公司 | Mold for manufacturing catalyst |
| CN105216169A (en) * | 2015-11-04 | 2016-01-06 | 厦门市金汤橡塑有限公司 | A kind of mould of block rubber goods |
| CN106880928A (en) * | 2015-12-15 | 2017-06-23 | 浙江衢州祥光橡塑有限公司 | yoga rod and its processing method |
| CN106881804A (en) * | 2015-12-15 | 2017-06-23 | 浙江衢州祥光橡塑有限公司 | Process the mould of Yoga rod |
| CN106976209A (en) * | 2017-03-31 | 2017-07-25 | 西安交通大学 | One kind makes resin injection mold and injection moulding process using Stereolithography |
| CN107139377A (en) * | 2017-06-20 | 2017-09-08 | 南通超达装备股份有限公司 | A kind of mould with secondary flanging die joint |
| CN110509473A (en) * | 2019-08-23 | 2019-11-29 | 黑龙江省科学院高技术研究院 | A kind of molding die and its application method of composite damping material |
-
2008
- 2008-12-31 CN CN200810163753A patent/CN101537684A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284847A (en) * | 2011-07-19 | 2011-12-21 | 南通超达机械科技有限公司 | Precise-guide die arrangement process for auto interior ornament moulding mould |
| CN102284847B (en) * | 2011-07-19 | 2012-12-26 | 南通超达机械科技有限公司 | Precise-guide die arrangement process for auto interior ornament moulding mould |
| CN103101215A (en) * | 2012-12-11 | 2013-05-15 | 郑州正力聚合物科技有限公司 | Mold for manufacturing catalyst |
| CN103101214A (en) * | 2012-12-11 | 2013-05-15 | 郑州正力聚合物科技有限公司 | Mold for manufacturing catalyst |
| CN103101220A (en) * | 2012-12-11 | 2013-05-15 | 郑州正力聚合物科技有限公司 | Mold for manufacturing catalyst |
| CN103101212A (en) * | 2012-12-11 | 2013-05-15 | 郑州正力聚合物科技有限公司 | Mold for manufacturing catalyst |
| CN103101213A (en) * | 2012-12-11 | 2013-05-15 | 郑州正力聚合物科技有限公司 | High-regularity catalyst molding mould |
| CN103101219A (en) * | 2012-12-11 | 2013-05-15 | 郑州正力聚合物科技有限公司 | Mold for manufacturing catalyst |
| CN103101221A (en) * | 2012-12-11 | 2013-05-15 | 郑州正力聚合物科技有限公司 | Catalyst molding mould with positioning function |
| CN103101218A (en) * | 2012-12-11 | 2013-05-15 | 郑州正力聚合物科技有限公司 | Mold for manufacturing catalyst |
| CN103100711A (en) * | 2013-01-11 | 2013-05-15 | 温岭市旭日滚塑科技有限公司 | Method of direct and rapid machining of rotational molding by lasher |
| CN105216169A (en) * | 2015-11-04 | 2016-01-06 | 厦门市金汤橡塑有限公司 | A kind of mould of block rubber goods |
| CN106880928A (en) * | 2015-12-15 | 2017-06-23 | 浙江衢州祥光橡塑有限公司 | yoga rod and its processing method |
| CN106881804A (en) * | 2015-12-15 | 2017-06-23 | 浙江衢州祥光橡塑有限公司 | Process the mould of Yoga rod |
| CN106881804B (en) * | 2015-12-15 | 2019-02-19 | 浙江衢州祥光橡塑有限公司 | Process the mold of Yoga stick |
| CN106880928B (en) * | 2015-12-15 | 2019-10-15 | 泉州台商投资区仁捷机械科技有限公司 | Yoga stick and its processing method |
| CN106976209A (en) * | 2017-03-31 | 2017-07-25 | 西安交通大学 | One kind makes resin injection mold and injection moulding process using Stereolithography |
| CN107139377A (en) * | 2017-06-20 | 2017-09-08 | 南通超达装备股份有限公司 | A kind of mould with secondary flanging die joint |
| CN110509473A (en) * | 2019-08-23 | 2019-11-29 | 黑龙江省科学院高技术研究院 | A kind of molding die and its application method of composite damping material |
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Open date: 20090923 |