CN202507454U - Special plastic compression molding product mold - Google Patents
Special plastic compression molding product mold Download PDFInfo
- Publication number
- CN202507454U CN202507454U CN2012201174191U CN201220117419U CN202507454U CN 202507454 U CN202507454 U CN 202507454U CN 2012201174191 U CN2012201174191 U CN 2012201174191U CN 201220117419 U CN201220117419 U CN 201220117419U CN 202507454 U CN202507454 U CN 202507454U
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- mold
- mould
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Abstract
The utility model relates to a special plastic compression molding product mold. The mold comprises a pressure column, a moving mold, a fixed mold and a bottom plate, wherein the inner walls of the moving mold and the fixed mold constitute mold cavities, the moving mold comprises an upper backing plate and a lower backing plate, the upper end surface of the upper backing plate is connected with the pressure column, the lower end surface of the lower backing plate is connected with the bottom plate, a copper-plated layer is arranged at the contact part of the side surface of the upper backing plate and the inner wall of the fixed mold, the copper-plated layer is arranged at the contact part of the side surface of the lower backing plate and the inner wall of the fixed mold, the material of a sliding part is enabled to be softer than that of the part of the fixed mold always, and then the mold is less prone to being damaged by pulling. The special plastic compression molding product mold can be used for preparing bars, plates and pipes through the mold, the manufacturing method is simple, no special equipment requirement exists, and products produced by the mold can be widely applied to petroleum, aviation, chemical engineering, automobiles, electronic industry and other industries.
Description
Technical field
The present invention relates to a kind of mould of plastics, particularly a kind of plastic mould pressing moulded products mould.
Background technology
Plastic shaping has a variety of, mainly contains following several kinds:
(1) injection mo(u)lding: with plastic raw materials heat fused in the injector barrel, be urged to nozzle forward, inject rapidly in the closed mould, promptly get plastic products after the cooling through push rod or screw rod.Be mainly used in thermoplastic.Complex-shaped, thin-walled be can produce, metal or nonmetallic plastic products are embedded with.
(2) extrusion molding: raw material is heated to flow regime in barrel, is urged to head forward through screw rod simultaneously, extrude continuously, obtain difform section bar, like pipe, rod, band, silk, plate etc. through the mouth mould of difformity and structure.The production efficiency of extrusion molding is high, but automatic continuous production generally uses thermoplastic to make raw material.
(3) blow molding: the plastic blank of molten state places in the mould after extruding through extruder or injector,, makes it be close to the moulding of mould inwall and obtains hollow product this blank inflation with compressed air.Blow molding can also be blown into film with parison continuously with compressed air.
(4) vacuum forming: thermoplastic plate (sheet) material is placed on the mould, step up all around and heat; After treating that plastics get into elastomeric state, die cavity is vacuumized, make sheet material under the atmospheric pressure effect, be close to mould intracavity wall, the cooling after-hardening is shaped.
(5) moulding by casting: claim to water the method for moulding again, can be divided into static casting mold, embedding casting mold and centrifugal casting mould etc. according to the difference of pouring type.In liquid resin, add an amount of curing agent, pour into then in the mold cavity, curing molding under normal pressure or low pressure and normal temperature or suitable heating condition.This method is mainly used in the production massive article, and equipment is simple, but productivity ratio is low.
(6) compression molding: plastic raw materials is put into the shaping mould heat fused, and pressurization makes plastics be full of whole die cavity, simultaneously cross-linking reaction takes place and solidifies.Compression molding is mainly used in thermosetting plastics, be applicable to complex-shaped or have the goods of complicated inserts, but productivity ratio is low, die cost higher
.
Though compression molding productivity ratio is low, die cost is higher; But for thermosetting plastics and other special plastics and the also necessary compression molding solve problem of product complex-shaped, that product size is big, batch is fewer; Mould design is just very crucial like this, most critical be how to improve die life, reduce die cost.
Summary of the invention
The deficiency that the object of the invention is short to domestic existing mold service life, die cost is high provides a kind of being not easy to pull, and practices thrift the few mould of maintenance cost, and special plastic mould pressing moulded products die production technology of the present invention is simple, and cost is few.
The utility model is realized through following method:
Special plastic mould pressing moulded products mould of the present invention, this mould is made up of compression leg, dynamic model, cover half and base plate, and the inwall of said dynamic model and cover half constitutes die cavity; Said dynamic model is made up of upper padding plate and lower bolster; Described upper padding plate upper surface is connected with compression leg, and the lower surface of lower bolster is connected with base plate, and the inwall touching position of said upper padding plate side and cover half has copper plate; The inwall touching position of said lower bolster side and cover half has copper plate; Select for use copper arc welding electrode on upper padding plate side slip mould accessory, to freeze, let the slipper material be softer than the cover half part all the time, be not easy to pull mould like this.The thickness of said copper plate is the 1-5 millimeter.
General mold material select steel, 40 chromium steel and other mould steel for use No. 45, choose the material of mould according to the quantity of production product, generally choose above two kinds of steel modifier treatment.More than 350 ℃, the unit are pressure-bearing will be chosen the mould steel of special requirement more than 50MPa for forming temperature.
The mould that special plastic mould pressing moulded products mould of the present invention mainly is plastics semi-finished product bar, sheet material or tubing.Use products such as this die production plastic rod, sheet material; That working condition is prone to is satisfied, easy to control, the mold repair number of times is few, be not easy to pull, practice thrift cost, is particularly suitable for mobile poor, plastic raw materials that can not injection mo(u)lding or product size is big, strength ratio is higher, product lot quantity is little, employing injection moulding or extrusion molding damage big mould to screw rod.
Description of drawings
Fig. 1 bar mould structure sketch map (1 compression leg; 2 upper padding plates; 3 cover half; 4 dynamic models; 5 lower bolsters; 6 base plates);
Fig. 2 bar mould upper padding plate copper layer structural representation (1 copper plate; 2 upper padding plates);
Fig. 3 board mould structural representation (1 upper padding plate; 2 cover half; 3 dynamic models; 4 lower bolsters; 5 base plates);
Fig. 4 sheet material mould upper padding plate copper layer structural representation (1 copper plate; 2 upper padding plates).
The specific embodiment
Bar to produce ￠ 160*200 is an example, and it also will be finish-machined to a kind of product of abnormity, because the required precision of quantity and size has no idea to use other explained hereafter, can only select this mould pressing process.At first select for use No. 45 steel to make corresponding bar mould, selecting on bar mould upper padding plate and lower bolster side slip mould accessory, the freeze thickness of copper plate of copper arc welding electrode for use is 1 millimeter, through using proof repeatedly; Do not have copper plate, mould just has a lot of cuts using about 3 times at the die cavity inwall; The liquid material is serious when causing production, and product pore occurs and packing is not enough, and behind the copper plate; Using about 30 times, wall of die cavity is also very smooth, does not scratch; Some cut of copper plate only, but because copper is softer relatively, produce does not also influence product quality always.
Polyether-ether-ketone sheet material to produce 350*300*20 is example, and it also will be finish-machined to a kind of product of abnormity, because the required precision of quantity and size has no idea to use other explained hereafter, can only select this mould pressing process.Select for use 40 chromium steel to prepare corresponding board mould, selecting on board mould upper padding plate side slip mould accessory, the freeze thickness of copper plate of copper arc welding electrode for use is 5 millimeters, through using proof repeatedly; Do not have copper plate, mould just has a lot of cuts using about 5 times at the die cavity inwall; The liquid material is serious when causing production, and product pore occurs and packing is not enough, and behind the copper plate; Using about 40 times, wall of die cavity is also very smooth, does not scratch; Some cut of copper plate only, but because copper is softer relatively, produce does not also influence product quality always.
Embodiment 3
Tubing to produce ￠ 200*175*80 is example; It also will be finish-machined to the product of machining bearing, pad, seal, plating ring, piston ring, check ring, support ring, the pump housing or valve components; Because the required precision of quantity and size; Have no idea to use other explained hereafter, can only select this mould pressing process.At first select for use No. 45 steel to make corresponding pipe mold, selecting on bar mould upper padding plate and lower bolster side slip mould accessory, the freeze thickness of copper plate of copper arc welding electrode for use is 2 millimeters, through using proof repeatedly; Do not have copper plate, mould just has a lot of cuts using about 6 times at the die cavity inwall; The liquid material is serious when causing production, and product pore occurs and packing is not enough, and behind the copper plate; Using about 30 times, wall of die cavity is also very smooth, does not scratch; Some cut of copper plate only, but because copper is softer relatively, produce does not also influence product quality always.
Claims (4)
1. special plastic mould pressing moulded products mould; This mould is made up of compression leg, dynamic model, cover half and base plate, and the inwall of said dynamic model and cover half constitutes die cavity, and said dynamic model is made up of upper padding plate and lower bolster; Described upper padding plate upper surface is connected with compression leg; The lower surface of lower bolster is connected with base plate, it is characterized in that the inwall touching position of said upper padding plate side and cover half has copper plate, and the inwall touching position of said lower bolster side and cover half has copper plate.
2. a kind of special plastic mould pressing moulded products mould according to claim 1 is characterized in that said copper plate uses copper arc welding electrode to freeze as raw material and forms.
3. a kind of special plastic mould pressing moulded products mould according to claim 1, the thickness that it is characterized in that said copper plate is the 1-5 millimeter.
4. a kind of special plastic mould pressing moulded products mould according to claim 1 is characterized in that said mould processed by No. 45 steel or No. 40 chromium steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201174191U CN202507454U (en) | 2012-03-27 | 2012-03-27 | Special plastic compression molding product mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201174191U CN202507454U (en) | 2012-03-27 | 2012-03-27 | Special plastic compression molding product mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202507454U true CN202507454U (en) | 2012-10-31 |
Family
ID=47059957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201174191U Expired - Lifetime CN202507454U (en) | 2012-03-27 | 2012-03-27 | Special plastic compression molding product mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202507454U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109353026A (en) * | 2018-09-25 | 2019-02-19 | 成都飞机工业（集团）有限责任公司 | It is a kind of to manufacture the mold and method for emitting shape Composite Material Stiffened Panel |
-
2012
- 2012-03-27 CN CN2012201174191U patent/CN202507454U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109353026A (en) * | 2018-09-25 | 2019-02-19 | 成都飞机工业（集团）有限责任公司 | It is a kind of to manufacture the mold and method for emitting shape Composite Material Stiffened Panel |
| CN109353026B (en) * | 2018-09-25 | 2021-04-27 | 成都飞机工业（集团）有限责任公司 | Mould and method for manufacturing hat-shaped composite material reinforced wall plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121031 |