CN101337428A - Plastics suction mould and mould making method thereof - Google Patents
Plastics suction mould and mould making method thereof Download PDFInfo
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- CN101337428A CN101337428A CNA2007100758090A CN200710075809A CN101337428A CN 101337428 A CN101337428 A CN 101337428A CN A2007100758090 A CNA2007100758090 A CN A2007100758090A CN 200710075809 A CN200710075809 A CN 200710075809A CN 101337428 A CN101337428 A CN 101337428A
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Abstract
The invention discloses a plastic-sucking mould and a mold making method thereof. The plastic-sucking mould is made of medium-density fiberboards. The mold making method for the plastic-sucking mould comprises the following steps: firstly, the medium-density fiberboards are produced into a mold blank; secondly, a plastic-sucking air chamber is processed on the back of the mold blank; thirdly, a shape is processed on the front side of the mold blank through a multi-shaft numerically controlled milling machine; fourthly, an air sucking hole is drilled on the back of the mold blank, and the air sucking hole is communicated the front side and the air chamber. Because the medium-density fiberboards are adopted as the material of the plastic-sucking mould, the cost is low, the manfuacture of the mold blank is facilitated, the manufacture cycle is short, and the processing and the modification are also facilitated; because the multi-shaft numerically controlled milling machine is adopted for processing, the processing is simple, quick and accurate, and the concave-convex machining precision for the surface of the plastic-sucking mould is high.
Description
Technical field
The present invention relates to the plastics suction mould field, especially about the plastics suction mould in a kind of automobile trial-production.
Background technology
At present, because the plastics sucking moulding mould has little, the suitable large-scale part production of input expense and is fit to the fast product characteristics that updates, so on plastic products, be widely used, especially adopt plastic uptake technology in the making in automobile trial-production field, particularly automotive upholstery more.
Existing producer generally adopts plaster mold, copper mold, aluminum dipping form or punching block when making plastics suction mould, also useful glass punching block, adopt which kind of mould volume production according to the complexity decision of output and plastics sucking moulding.The employing plaster mold is produced, and it has with short production cycle and the minimum advantage of cost, yet the plastic uptake finished surface is coarse, and mould is cracked easily in the production, poor durability, product that can't the moulding degree of depth is big, complexity is high and sheet material is thick.Adopt and electroplate copper mold, its technology is to spray one deck conductive agent with beating excellent cell-shell surface, put into electrolytic cell again and plate thick copper layer, electroplating process needs 72 hours, then will irritate gypsum, polish and inflate eye to copper mold handles, adopting the advantage of electroplating copper mold production is the Blister product smooth surface, cost is moderate and durability is strong, and shortcoming is that the Mold Making cycle is long, can't finish the production of accurate Blister product.Adopt plastic uptake aluminum dipping form or punching block production, adopt the processing of CNC CNC milling machine, advantage is that fabrication cycle is moderate, the mould processing time in later stage short, plastic uptake product size precision height and mold durability are strong, but cost is too high.Adopt fiber reinforced plastic mold, advantage be the manufacturing cycle short, cost is low and the part production of suitable small lot, but the life-span is short, the easy deformation of being heated, the maximum temperature that mould can bear are greatly about below 80 ℃.
When making plastics suction mould, great majority adopt plain-milling machine or three-axis numerical control milling machine at present, when processing mold,, adopt the bonding then imposition method of piecemeal processing for size and all bigger plastics suction mould of thickness more, cause the prolongation of process-cycle and the waste of material cost, piecemeal is many more, and bonding work is many more, and dimensional accuracy is just bad more assurance also, and for the shape and the feature of some mould sides, plain-milling machine and three-axis numerical control mill all and can't directly process.
In automobile trial-production field, because the plastic-absorbing component size is big, higher, the shape more complicated of required precision, main is to seek precision test according to the design digital-to-analogue, often will revise digital-to-analogue, therefore above mold materials and technology all can't reach automotive upholstery trial-production requirement on cost, fabrication cycle and precision.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the deficiencies in the prior art, and a kind of cost is low, fabrication cycle is short and machining accuracy is high plastics suction mould and die-manufacturing method thereof are provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of plastics suction mould, it is to be made by medium density fibre board (MDF).
Described medium density fibre board (MDF) has at least two-layer, and the adjacent layer medium density fibre board (MDF) is bonding.
A kind of die-manufacturing method of plastics suction mould is characterized in that: comprise the steps:
A) make the mould blank with medium density fibre board (MDF);
B) process the plastic uptake air chamber at the mould blank back side;
C) process moulding by the multi-axis numerical control milling machine in mould blank front;
D) bore suction hole at the mould blank back side, this suction hole connects front and air chamber.
In the described step a), medium density fibre board (MDF) has at least two-layer, and the adjacent layer medium density fibre board (MDF) is bonding.
Described adjacent layer medium density fibre board (MDF) is bonding by polyvinyl acetate emulsion.
In the described step d), with the boring of rubber-like wire.
Described wire is a steel wire.
In the described step c), the multi-axis numerical control milling machine is the five-shaft numerical control milling machine.
Also have step e) after the described step d): polish in the place to gentle chamber, front.
The invention has the beneficial effects as follows,,, and be convenient to processing and be convenient to revise so cost making and fabrication cycle low, that be convenient to the mould blank is short owing to adopt the material of medium density fibre board (MDF) as plastics suction mould; Owing to adopt the multi-axis numerical control milling machine to process, thus process easy, quick and accurately, plastics suction mould concave-convex surface machining accuracy height.
Description of drawings
Fig. 1 is the structure chart of present embodiment plastics suction mould;
Fig. 2 is the stereogram that the present embodiment plastics suction mould is looked up angle;
Fig. 3 is the flow chart of the die-manufacturing method of present embodiment plastics suction mould.
The specific embodiment
As shown in Figures 1 and 2, the present embodiment plastics suction mould is made by medium density fibre board (MDF) 1, and this medium density fibre board (MDF) 1 has multilayer, and the medium density fibre board (MDF) 1 of adjacent layer is bonding by white glues 4.This plastics suction mould has the front 5 and the back side 6, this front 5 is used to process moulding 2, this back side 6 is concaved with pit 7, when being plastic uptake, this pit 7 forms the air chamber 7 of sealing area, and the back side 6 of this plastics suction mould also is provided with a plurality of suction holes 3, and this suction hole 3 connects the front 5 and the air chamber 7 of this plastics suction mould.
As shown in Figure 3, present embodiment plastics suction mould die-manufacturing method comprises the steps:
A) the three-dimensional digital-to-analogue of extraction plastic-absorbing component to be processed is used CAM software (as UG, Powermill etc.) its integral body is programmed in computer;
B) get the raw materials ready, choose medium density fibre board (MDF) as the die blank material, bonding layer by layer with white glues medium density fibre board (MDF), and form the mould blank that meets plastic-absorbing component mould size to be processed;
C) treat that white glues solidifies after, dig a pit that 8-15mm is dark at the back side of die blank, this pit is as the plastic uptake air chamber, the size of air chamber is according to product and blank dimension and decide;
D) the die blank clamping that has dug air chamber to CNC five-shaft numerical control milling machine, the program that input a) is finished in the step is processed the mould blank;
E) after the CNC process finishing, be that the rubber-like steel wire of 1-1.5mm bores a plurality of suction holes at the pocket that does not influence the product mold precision, connect die face and air chamber by suction hole with diameter;
F) at last with sand paper the polishing of die face and air chamber place, remove burr, guarantee the unobstructed of the polishing of die surface and suction hole.
The five-shaft numerical control milling machine can be processed that general three axis numerically controlled machine can not be processed or be difficult to continuous, the level and smooth free form surface that clamping is finished processing, can improve machining accuracy, quality and efficient.
Medium density fibre board (MDF) is to be raw material with wood fibre or other plant fiber, applies Lauxite or other synthetic resin, and the density that compacting forms under the heating pressurized conditions is at 0.50～0.88g/cm
3The sheet material of scope also can add other suitable additive to improve the sheet material characteristic, and it has good physical and mechanical property and processing characteristics.That this sheet material has is cheap, processing simple and the high characteristics of utilization rate.
White glues is a polyvinyl acetate emulsion, and it is a kind of macromolecule latex fluidized polymer, is white in color, have cheap, easy to use, bonding force is strong, nontoxic, odorless and ageing-resistant characteristics, can be in cold curing, and curing rate is faster than general glue kind, bonding back water white transparency, outward appearance is neatly beautiful.White glues is used for that the nothing nail of all kinds of timber decorative panels is bonding, furniture making, decorative panel, handicraft, weaving cloth, wood floors are bonding etc.
In the present embodiment, at the back side of mould blank processing air chamber, process moulding in the front of mould blank again, thereby can not abrade moulding earlier, can effectively guarantee the shape and the precision of moulding.Because this plastics suction mould is laminated by the multilayer medium density fibre board (MDF) is bonding, integral thickness is bigger, 500～600mm is generally arranged, so can not process with existing drill bit, and adopt rubber-like wire (as steel wire) hand drill, and this wire can adapt to the boring processing of the plastics suction mould of different-thickness.
In the present embodiment,,, be fit to the Development and Trial of digital-to-analogue checking and new product so cost is low and it is fast to make, and processes easily and be convenient to and revise owing to adopt medium density fibre board (MDF) to make mold materials and bonding by white glues.Owing on CNC five-shaft numerical control milling machine, process, avoided the logarithmic mode piecemeal to process the process of layout again, improved machining accuracy, convenient, fast and accurate, and plastics suction mould concave-convex surface machining accuracy height.Owing to bore suction hole with elastic metallic yarn, guaranteed the unobstructed of air intake passage in the plastic uptake process, improved the quality and the efficient of plastic uptake.By present embodiment, generally only needed 1-2 days can produce common plastics suction mould, for the bigger and complex-shaped plastics suction mould of size, generally also only need 2-4 days, improved make efficiency greatly.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (9)
1. a plastics suction mould is characterized in that: made by medium density fibre board (MDF).
2. plastics suction mould according to claim 1 is characterized in that: described medium density fibre board (MDF) has at least two-layer, and the adjacent layer medium density fibre board (MDF) is bonding.
3. the die-manufacturing method of a plastics suction mould is characterized in that: comprise the steps:
A) make the mould blank with medium density fibre board (MDF);
B) process the plastic uptake air chamber at the mould blank back side;
C) process moulding by the multi-axis numerical control milling machine in mould blank front;
D) bore suction hole at the mould blank back side, this suction hole connects front and air chamber.
4. the die-manufacturing method of plastics suction mould according to claim 3, it is characterized in that: in the described step a), medium density fibre board (MDF) has at least two-layer, and the adjacent layer medium density fibre board (MDF) is bonding.
5. the die-manufacturing method of plastics suction mould according to claim 4 is characterized in that: described adjacent layer medium density fibre board (MDF) is bonding by polyvinyl acetate emulsion.
6. the die-manufacturing method of plastics suction mould according to claim 3 is characterized in that: in the described step d), with the boring of rubber-like wire.
7. the die-manufacturing method of plastics suction mould according to claim 6, it is characterized in that: described wire is a steel wire.
8. according to the die-manufacturing method of any described plastics suction mould among the claim 3-7, it is characterized in that: in the described step c), the multi-axis numerical control milling machine is the five-shaft numerical control milling machine.
9. the die-manufacturing method of plastics suction mould according to claim 8 is characterized in that: also have step e) after the described step d): located to polish in gentle chamber, front.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100758090A CN101337428B (en) | 2007-07-04 | 2007-07-04 | Plastics suction mould and mould making method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100758090A CN101337428B (en) | 2007-07-04 | 2007-07-04 | Plastics suction mould and mould making method thereof |
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| Publication Number | Publication Date |
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| CN101337428A true CN101337428A (en) | 2009-01-07 |
| CN101337428B CN101337428B (en) | 2010-10-13 |
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| CN2007100758090A Expired - Fee Related CN101337428B (en) | 2007-07-04 | 2007-07-04 | Plastics suction mould and mould making method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922592A (en) * | 2012-11-14 | 2013-02-13 | 陈启军 | Die sleeve for pressing green compact |
| CN104325627A (en) * | 2014-09-05 | 2015-02-04 | 陆立新 | Vacuum blister molding plastic product for pets, and processing method thereof |
| CN104356678A (en) * | 2014-11-17 | 2015-02-18 | 绵阳昌隆模塑科技有限公司 | Blister resin mold formula and blister resin mold manufacturing method |
| CN105034142A (en) * | 2015-06-23 | 2015-11-11 | 杨建军 | Method for manufacturing mold |
| CN109435215A (en) * | 2018-11-09 | 2019-03-08 | 延锋汽车饰件模具技术有限公司 | A kind of female mould vacuum forming mold and its manufacturing process |
| CN110815680A (en) * | 2019-11-07 | 2020-02-21 | 上海金标文化创意股份有限公司 | Method for reinforcing and repairing density board die |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1272425A (en) * | 2000-05-08 | 2000-11-08 | 吴度云 | Production mehtod of fibreglass reinforced plastics artificial leather product |
-
2007
- 2007-07-04 CN CN2007100758090A patent/CN101337428B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922592A (en) * | 2012-11-14 | 2013-02-13 | 陈启军 | Die sleeve for pressing green compact |
| CN104325627A (en) * | 2014-09-05 | 2015-02-04 | 陆立新 | Vacuum blister molding plastic product for pets, and processing method thereof |
| CN104356678A (en) * | 2014-11-17 | 2015-02-18 | 绵阳昌隆模塑科技有限公司 | Blister resin mold formula and blister resin mold manufacturing method |
| CN105034142A (en) * | 2015-06-23 | 2015-11-11 | 杨建军 | Method for manufacturing mold |
| CN109435215A (en) * | 2018-11-09 | 2019-03-08 | 延锋汽车饰件模具技术有限公司 | A kind of female mould vacuum forming mold and its manufacturing process |
| CN110815680A (en) * | 2019-11-07 | 2020-02-21 | 上海金标文化创意股份有限公司 | Method for reinforcing and repairing density board die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101337428B (en) | 2010-10-13 |
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Inventor after: Gu Lixin Inventor before: Cheng Xu Inventor before: Li Huiran |
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Effective date of registration: 20161230 Address after: 212300 Zhenjiang City, Jiangsu province Danyang City Jiepai Town Community Nishimura Dexiang Road Patentee after: JIANGSU GAOBIAO TECHNOLOGY DEVELOPMENT CO., LTD. Address before: Kwai Chung town Yanan Road, BYD Industrial Park in Longgang District of Shenzhen City, Guangdong province 518119 Patentee before: BYD Co. Ltd. |
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Granted publication date: 20101013 Termination date: 20170704 |
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| CF01 | Termination of patent right due to non-payment of annual fee |