CN203665888U - Steam-heating type specular injection mold - Google Patents
Steam-heating type specular injection mold Download PDFInfo
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- CN203665888U CN203665888U CN201320806350.8U CN201320806350U CN203665888U CN 203665888 U CN203665888 U CN 203665888U CN 201320806350 U CN201320806350 U CN 201320806350U CN 203665888 U CN203665888 U CN 203665888U
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Abstract
The utility model relates to a steam-heating type specular injection mold. The injection mould comprises core plates and cavity plates, wherein the core plates and the cavity plates are connected with supporting plates respectively; the supporting plates adopt ordinary steel plates with poor heat-conducting property and the ordinary steel plates are connected into a latticed structure in a criss-cross way; the cavity plate comprises a molding layer and a base body layer; the forming layer is quite thin; the base body layer is made from ordinary hot-working mould steel through conventional technologies; the molding layer selects high-quality mould steel with favorable thermal fatigue resistance and optimal polishing performance and is superimposed on the surface of the base body layer through a surfacing welding method; heating and cooling pipelines are formed in the base body layer of the cavity plate and the core plates and are connected with a temperature controlling device; high-temperature steam and low-temperature cooling water are passed into the heating and cooling pipelines, so as to achieve quick heating and cooling on the molding surface; temperature measuring devices are further mounted in positions, near the molding surface, inside the core plates and the cavity plate; the temperature measuring devices, a heating device, and a cooling device are connected with the temperature controlling device. The steam-heating type specular injection mold provides innovative designs in aspects of materials, structures and the like, so that the mold has remarkable advantages of low manufacturing cost, high efficiency of heating and cooling, favorable product surface quality, light in weight of the mold and the like.
Description
Technical field
The utility model belongs to the injection molding technology field of materials processing subject, relates in particular to a kind of steam heating type high-gloss injection mold.
Background technology
High light injection molding technology, as an extremely potential green forming technique, has attracted a large amount of scholars to carry out research and extension to it, but the development of high light injection molding technology is still immature, also has many witches problem to be solved.Particularly, aspect high-gloss injection mold design and manufacturing technology, the problem of existence is particularly outstanding.
Because the forming surface polishing required precision of high-gloss injection mold is high, so, first require its mold materials must possess good polishing performance; Secondly, because Fast Heating in normal productive process hockets repeatedly with cooling fast, high-gloss injection mold forming part easily produces Under Thermal Fatigue Damage, thereby causes mould to lose efficacy, therefore, require cavity plate material also must possess the ability of good heat resistance, thermal deformation resistant and heat fatigue.In addition,, when the heating of Steam Heating high-gloss injection mold, heat medium---in water vapour, be often mixed with impurity, mold materials is had to certain corrosiveness, therefore, the corrosion resistance of mold materials will be got well, and can prevent from getting rusty.According to the above requirement to high-gloss injection mold cavity plate material, people often select import high-quality mould steel, as the NAK80 of the CENAI of FDAC, Japanese Datong District and Sweden's hot die steel (VIDAR SUPERIOR), these mold materials have good dimensional stability and polishing performance and higher heat shock resistance and thermal fatigue property, it is the first-selection of high-gloss injection mold material, but these high-quality price of steel product costlinesses, cause the high expensive of mould.
Existing steam heating type high-gloss injection mold also exists the outstanding problem that the efficiency of cycle is low, in order to shorten molding cycle and to improve injection moulding production efficiency, the structural design of steam heating type high-gloss injection mold must take into full account mould Fast Heating and cooling requirement fast, this just requires must adopt special method for designing or structure in Design of Dies, to reduce the thermal capacity of mould as far as possible, thereby improve the efficiency of cycle.
So the utility model carries out the novelty design of material and structure two aspects for steam heating type high-gloss injection mold, in ensureing product quality, reduce the production cost of mould, reduce the thermal capacity of mould and the loss of heat, to improve heating cooling effectiveness, shorten molding cycle.
Summary of the invention
The utility model object is to overcome the deficiency of above-mentioned technology, a kind of steam heating type high-gloss injection mold is provided, and this cavity board is made up of base layer and shape layer, and selects two kinds of different steel to make, can greatly save the consumption of high-quality mould steel, thereby reduce die cost.The gripper shoe of core and die cavity has adopted latticed design simultaneously, can reduce greatly the thermal capacity of mould and the loss of heat, improves heating cooling effectiveness, shortens molding cycle, meanwhile, can also greatly alleviate the weight of mould.
For reaching the object of narrating above, the utility model has adopted following concrete technical scheme.
A kind of steam heating type high-gloss injection mold, this mould comprises core plate and cavity plate, and described core plate and cavity plate are connected with respectively gripper shoe, and described gripper shoe adopts the poor general steel plate of heat conductivility, connects into latticed structure by crisscross.Described cavity plate is made up of shape layer and base layer, the very thin thickness of described shape layer.Described base layer adopts common process to manufacture by common hot die steel, and described shape layer is selected possesses good thermal fatigue resistance and the splendid high-quality mould steel of polishing performance adopts welding method to superpose and make on base layer surface.On described core plate and cavity plate base layer, offer heating-cooling coil road, be connected with attemperating unit, realize cooling to the Fast Heating of molding surface to passing into high-temperature steam and low-temperature cooling water in pipeline.The inner position near forming surface of described core plate and cavity plate is also provided with temperature measuring equipment.Temperature measuring equipment, heater, cooling device are connected with attemperating unit.
Described steam heating type high-gloss injection mold comprises core plate and cavity plate.
Described core plate and cavity plate are connected with respectively gripper shoe.
Described gripper shoe is fenestral fabric.
The design criteria of described fenestral fabric is the structural strength that will ensure mould.
Described fenestral fabric is to be welded by crisscross by plurality of steel plates.
Described steel plate all adopts the poor general steel plate of heat conductivility.
Described cavity plate is made up of shape layer and base layer.
Described base layer selects common hot die steel to make.
Described shape layer is selected possesses good thermal fatigue resistance and the splendid high-quality mould steel of polishing performance is made.
The preparation method of described cavity plate, is characterized in that:
The first step: with the base layer of conventional method processing and fabricating cavity plate;
Second step: adopt the welding method moulding layer material that superposes on base layer surface, make cavity plate blank;
The 3rd step: the type rooved face to die cavity blank carries out sanding and polishing, till meeting roughness requirement.
On described core plate and cavity plate base layer, offer heating-cooling coil road, be connected with attemperating unit, realize cooling to the Fast Heating of molding surface to passing into high-temperature steam and low-temperature cooling water in pipeline.
Described cavity plate and core plate are inner is separately installed with temperature measuring equipment near on the position of forming surface.
Described temperature measuring equipment is thermocouple.
Owing to having adopted technique scheme, the steam heating type high-gloss injection mold of the utility model has the beneficial effect of following several aspects.
1. production cost is low;
Because of cavity board shape layer thickness as thin as a wafer, the ratio that accounts for cavity board cumulative volume is generally not high, and the volume of cavity board is larger, the shared volume fraction of shape layer can be less.So, adopt expensive high-quality mould steel to manufacture shape layer, cheap common die steel making base layer, can realize and have good thermal fatigue resistance and polishing performance meeting die surface, when ensureing moulding surface quality, greatly save the consumption of expensive high-quality mould steel.Meanwhile, owing to having set up the gripper shoe that can improve the intensity of mould in cavity plate and core plate, so, can, in meeting mould structure requirement of strength, reduce the thickness of cavity plate and core plate, thereby save the consumption of mould steel.So the utility model can reduce the production cost of mould greatly, has good economic benefit.
2. the efficiency of cycle is high;
Because the gripper shoe being connected with cavity plate and core plate has adopted latticed non-solid structure, can, in ensureing mould structure intensity, reduce greatly the thermal capacity of mould.Meanwhile, because the air in mesh is hot non-conductor, and gripper shoe has adopted the poor steel of heat conductivility, so in the heating period of mould, the heat that can effectively reduce high-temperature steam generation scatters and disappears to gripper shoe direction, thereby be conducive to improve mold heated efficiency, reduce energy consumption; In the mold cools down stage, can effectively reduce the heat of gripper shoe to cavity plate transmission, thereby improve the cooling effectiveness of mould, be conducive to equally reduce the consumption of energy.
3. mold weight is light;
Make fenestral fabric because of after the gripper shoe optimization being connected with cavity plate and core plate, it is in ensureing the structural strength of mould, mold weight is alleviated greatly, no matter be that the aspects such as transport or operation are all more convenient and quick than the gripper shoe of entity structure.
In a word, the utility model has carried out novelty design for the aspect such as material and structure of steam heating type high-gloss injection mold, makes this mould have the significant advantages such as production cost is low, heating cooling effectiveness is high, product surface quality good, mold weight is light.
Brief description of the drawings
Fig. 1 is steam heating type high-gloss injection mold structural representation of the present utility model.
Fig. 2 is the supporting plate structure schematic diagram of steam heating type high-gloss injection mold of the present utility model.
In figure: 1, sprue bush, 2, sprue, 3, runner, 4, cast gate, 5, plastic, 6, core fixing plate, 7, core plate, 8, thermocouple in core plate, 8 ', thermocouple in cavity plate, 9, cavity plate, 10, impression bolster, 11, support, 12, backing plate, 13, thimble fixed head, 14, push rod, 15, moving clamping plate, 16, die cavity gripper shoe, 16 ', core gripper shoe, 17, fixed clamping plate, 901, cavity plate moulding section, 902, cavity plate body portion, 1601 steel plates, 7001, heating-cooling coil road in core plate, 9001, heating-cooling coil road in cavity plate.
Detailed description of the invention
For understanding better the technical solution of the utility model, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, the disclosed a kind of steam heating type high-gloss injection mold of the utility model, it comprises core plate 7 and cavity plate 9, described cavity plate and core plate are connected with respectively gripper shoe 16 and 16 ', described gripper shoe 16 and 16 ' adopts the poor general steel plate 1601 of polylith heat conductivility, connect into latticed structure by crisscross, described fenestral fabric is made up of regular polygon mesh, shape, the size of mesh and distribute and need optimal design to ensure the performance requirement of mould each side.Described cavity plate 9 is made up of shape layer 901 and base layer 902, the very thin thickness of described shape layer 901, approximately 0.4～4mm.Described base layer 902 adopts common process to manufacture by common hot die steel, described shape layer 901 is selected possesses good thermal fatigue resistance and the splendid high-quality mould steel of polishing performance, as the CENA1 of FDAC, adopt welding method to superpose and make on base layer 902 surfaces, and through extremely required roughness of sanding and polishing.On described core plate 7 and cavity plate base layer 902, offer respectively heating- cooling coil road 7001 and 9001, be connected with attemperating unit, realize cooling to the Fast Heating of mould molding piece surface to passing into high-temperature steam and low-temperature cooling water in pipeline.The inner position near forming surface of described core plate and cavity plate is also provided with thermocouple 8 and 8 ' as temperature measuring equipment, and is connected with attemperating unit.Temperature measuring equipment, heater, cooling device are connected with attemperating unit.
Operation principle of the present utility model is as follows.
The course changing according to mold temperature, a complete high light injection molding cycle can be divided into the mold heated stage, and high temperature keeps stage, mold cools down stage and low temperature to keep the stage.Below in conjunction with above-mentioned several working stages, the operation principle of a kind of steam heating type high-gloss injection mold of the present utility model is elaborated.
In the mold heated stage, attemperating unit is opened high-temperature steam pipeline by controlling reversal valve, high temperature and high pressure steam flows in the heating- cooling coil road 7001 and 9001 in core plate 7 and cavity plate 9, the heat that high temperature and high pressure steam comprises constantly spreads the mode with convection condensation heat exchange in core plate 7 and cavity plate 9, thereby the temperature of rising whose surfaces and mold cavity surface, and the gripper shoe 16 being connected with cavity plate 9 with core plate 7 and 16 ' is owing to having adopted latticed non-solid structure, can reduce greatly the thermal capacity of mould, simultaneously, because the air in mesh is that hot non-conductor and supporting steel plate 1601 itself selected the poor steel of heat conductivility, so can effectively reduce the heat of high-temperature steam generation scatters and disappears to gripper shoe direction, thereby reduce thermal loss and improve the efficiency of heating surface.In mold heated process, be arranged on respectively thermocouple 8 and the 8 ' temperature to attemperating unit Real-time Feedback mold cavity surface and whose surfaces in core plate 7 and cavity plate 9, in the time that temperature is increased to the temperature upper limit of setting, attemperating unit cuts off high-temperature steam pipeline by switching reversal valve, thereby stops heating mould.
Keep the stage at high temperature, mould is in matched moulds state, and the plastic melt in injecting machine material tube will pass through successively nozzle, sprue 2, runner 3, cast gate 4 and enter mold cavity, until melt is full of die cavity completely.Because mould-filling time is very short, so mold cavity temperature can maintain the state after heating finishes substantially in this process.In this process, too many if mold cavity temperature declines, attemperating unit can be opened temperature steam pipework again, passes into high temperature and high pressure steam to the heating- cooling coil road 7001 and 9001 in mould, to maintain the condition of high temperature of mold cavity surface and whose surfaces.
In the mold cools down stage, attemperating unit is opened cooling water pipeline by controlling reversal valve, low-temperature cooling water flows in the heating- cooling coil road 7001 and 9001 in core plate 7 and cavity plate 9, heat that core plate 7 and cavity plate 9 comprise will be constantly pulled away to spreading in low-temperature cooling water, thereby reduce the temperature of whose surfaces and mold cavity surface, with plastic cement 5 in quick cooling die die cavity.In mold cools down process, because the air in gripper shoe 16 and 16 ' mesh is hot non-conductor, and supporting steel plate 1601 has been selected the poor steel of heat conductivility, so, the heat diffusion that can reduce gripper shoe enters in the low-temperature cooling water in heating-cooling coil road, thereby reduces thermal loss and improve die surface cooling effectiveness.In cooling procedure, be arranged on respectively thermocouple 8 and 8 ' the real-time temperature to attemperating unit feedback-type wicking surface and mold cavity surface in core plate 7 and cavity plate 9, in the time that temperature is reduced to predefined lowest temperature, attemperating unit switches reversal valve and stops passing into low-temperature cooling water in heating and cooling system, to stop cooling die.
Keep the stage at low temperature, attemperating unit is opened high-pressure gas pipeline by controlling reversal valve, gases at high pressure enter in heating-cooling coil road, cooling water residual in pipeline is drained, thereby avoid the excessive descent of mold temperature, effectively avoid the interference to mold heated in next molding cycle of cooling water residual in heating-cooling coil road simultaneously, be conducive to improve mold heated efficiency.In this stage, the temperature of plastic cement 5 has been cooled to meet and has ejected requirement, opens mould, takes out plastic 5, thereby completes an injection molding cycle.
Claims (9)
1. a steam heating type high-gloss injection mold, this mould comprises core plate and cavity plate, described core plate and cavity plate are connected with respectively gripper shoe, described gripper shoe adopts general steel plate to connect into latticed structure by crisscross, shape layer and base layer that described cavity plate is made up of two kinds of different materials form, on described core plate and cavity plate base layer, offer heating-cooling coil road, form heating-cooling device.
2. steam heating type high-gloss injection mold according to claim 1, is characterized in that: mould comprises core plate and cavity plate, described core plate and cavity plate are connected with respectively gripper shoe.
3. steam heating type high-gloss injection mold according to claim 1, is characterized in that: described gripper shoe is fenestral fabric.
4. steam heating type high-gloss injection mold according to claim 3, is characterized in that: described fenestral fabric is to be formed by connecting by crisscross by the poor general steel plate of polylith heat conductivility.
5. steam heating type high-gloss injection mold according to claim 1, is characterized in that: cavity plate is made up of shape layer and base layer.
6. steam heating type high-gloss injection mold according to claim 5, is characterized in that: described base layer selects common hot die steel to make.
7. steam heating type high-gloss injection mold according to claim 5, is characterized in that: described shape layer is selected possesses good thermal fatigue resistance and the splendid high-quality mould steel of polishing performance is made.
8. steam heating type high-gloss injection mold according to claim 1, it is characterized in that: on described core plate and cavity plate base layer, offer heating-cooling coil road, be connected with attemperating unit, realize cooling to the Fast Heating of molding surface to passing into high-temperature steam and low-temperature cooling water in pipeline.
9. steam heating type high-gloss injection mold according to claim 1, is characterized in that: the inner position near forming surface of described cavity plate and core plate is separately installed with temperature measuring equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320806350.8U CN203665888U (en) | 2013-12-10 | 2013-12-10 | Steam-heating type specular injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320806350.8U CN203665888U (en) | 2013-12-10 | 2013-12-10 | Steam-heating type specular injection mold |
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| Publication Number | Publication Date |
|---|---|
| CN203665888U true CN203665888U (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320806350.8U Expired - Fee Related CN203665888U (en) | 2013-12-10 | 2013-12-10 | Steam-heating type specular injection mold |
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| Country | Link |
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| CN (1) | CN203665888U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690930A (en) * | 2013-12-10 | 2015-06-10 | 深圳信息职业技术学院 | Steam heating type rapid heat cycle molding injection mold |
| CN109575966A (en) * | 2018-11-29 | 2019-04-05 | 特雷西国际公司 | System based on agricultural residue manufacture solid fuel |
-
2013
- 2013-12-10 CN CN201320806350.8U patent/CN203665888U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690930A (en) * | 2013-12-10 | 2015-06-10 | 深圳信息职业技术学院 | Steam heating type rapid heat cycle molding injection mold |
| CN109575966A (en) * | 2018-11-29 | 2019-04-05 | 特雷西国际公司 | System based on agricultural residue manufacture solid fuel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20141210 |
|
| EXPY | Termination of patent right or utility model |