CN103862626A - High-precision high speed cold and hot mould - Google Patents
High-precision high speed cold and hot mould Download PDFInfo
- Publication number
- CN103862626A CN103862626A CN201410068431.1A CN201410068431A CN103862626A CN 103862626 A CN103862626 A CN 103862626A CN 201410068431 A CN201410068431 A CN 201410068431A CN 103862626 A CN103862626 A CN 103862626A
- Authority
- CN
- China
- Prior art keywords
- mould
- precision
- high speed
- speed cold
- precision high
- 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.)
- Pending
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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
- B29C45/72—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
- B29C45/0025—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
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
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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
- 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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- 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
- B29C2945/76655—Location of control
- B29C2945/76732—Mould
Abstract
The invention provides a high-precision high speed cold and hot mould. The high-precision high speed cold and hot mould comprises a front mould, a rear mould and an electronic control device, wherein a cooling pipe is horizontally embedded in the moulding surface of each of mould bodies on the two sides at the position corresponding to a mould cavity part, an electric heating tube and a temperature sensor are longitudinally distributed in the moulding surface of each of the mould bodies on the two sides, an electrically operated valve is arranged at an inlet of the cooling pipe, and the electrically operated valve is electrically connected with the temperature sensors and an electric control device. The high-precision high speed cold and hot mould can thoroughly overcome the defects of surface welding marks and the like, surface finish of the product is improved; a moulding period can be greatly shortened, efficiency is improved, cost for spraying high gloss paint during secondary processing is reduced, and yield is above 98%; subsequent paint spraying processing is not needed to be carried out on the product processed by the high-precision high speed cold and hot mould, and yield is increased by 20-30%.
Description
Technical field
The present invention relates to injection molding technology field, be specially a kind of high-precision high-speed hot-cold die.
Background technology
Injection molding technology obtains applying very widely in the finished product manufacture of all trades and professions, and its basic principle is to utilize the cylinder that shoots material of note shape machine that thermoplastic is heated to molten condition, then vasopressing injection in the die cavity of injection mold through being condensed into goods.Temperature in the die cavity of control mould is one of Main Means of controlling quality of item.Increasingly extensive along with plastic products application, the requirement of precision, surface quality and the intensity of enterprise to plastic products is more and more higher, cost, environmental protection in shape, performance and the generative process of people to plastic products simultaneously and saving energy and reduce the cost etc. proposed requirements at the higher level, and traditional injection molding technique has been difficult to adapt to this requirement.Main surface quality and the surface strength that improves plastic products by plastic spraying technology at present.On the one hand, the surface quality of injecting products is very large on the product quality impact after spraying, if the surface quality of injecting products is poor, is difficult to obtain qualified part by spraying technology.On the other hand, spraying is the secondary operations to plastic product, and not only waste generates raw material, wastes energy, and increases the production cost of plastic products, and causes serious environmental pollution, harm operating personnel's health of human body.
The molten trace Shooting Technique of Gao Guangwu can obtain high accuracy, best bright finish, without molten trace, without the product of current mark, this technique is in injection molding process, the die cavity of injection molding or core rod are quickly heated up to and approached or higher than the heat distortion temperature of polymer, then polymer is expelled in mold cavity, in injection and pressure maintaining period, keep the temperature of mould or core rod always, then quick cooling die die cavity or core rod are opened mould after mold temperature is cooled to a certain degree, take out product.But the temperature control precision of this technological requirement mould is high, plastic mould rapid heating and cooling temperature control be obtain high accuracy, best bright finish, without molten trace, without the injection molding product key link of current mark.
Summary of the invention
The object of the invention is to: a kind of high-precision high-speed hot-cold die is provided, and it can thoroughly solve surface and weld line, welds the defects such as trace, has significantly shortened molding cycle, raises the efficiency, removed secondary operations from and spray the cost of high lac varnish, yields reaches more than 98%.
The present invention for achieving the above object, the technical scheme adopting is: a kind of high-precision high-speed hot-cold die, comprise front mould, rear mold and electric control gear, corresponding cavity section, in the forming surface of both sides die body, be laterally embedded with cooling tube, longitudinally be furnished with electrothermal tube and temperature sensor, described cooling tube import is provided with motor-operated control valve, and described motor-operated control valve is realized and being electrically connected with electric control gear with temperature sensor.
Also comprise compressed air feedway, described compressed air feedway is come round by motor-operated control valve and cooling tube.
The present invention can adopt steam assistant formation technology, on mould, do heating of equal perseverance, when being blown into high-temperature vapour after injection machine matched moulds, first mold temperature is brought up to a setting value, then starts to cavity injection plastic cement, injection machine complete pressurize proceed to cooling after, start to inject cold water, mold temperature drops to die sinking after a setting value very soon, then is blown into air to mould cold water is blown away completely, completes whole injection moulding process.The present invention, by above-mentioned steam assistant formation technology, can improve yields greatly, and concrete advantage is as follows:
1. thoroughly solve surface and weld line, weld trace, ripple, filamentary silver line, the defects such as shrink.
2. significantly shorten molding cycle, improved efficiency.
3. removed the cost that secondary operations is sprayed paint from, yields reaches more than 98%.
Further improvement of the present invention is: described cooling tube import is provided with flow controller, and described flow controller is realized and being electrically connected with electric control gear, realizes the accurate control of cold and hot temperature.
Further improvement of the present invention is: described in be provided with heating tube in heating.The electric heating tube that utilization is embedded in mould inside directly heats injection mold, improve efficiency, injection machine injection moulding complete proceed to cooling after, start to inject cold water, mold temperature drops to die sinking after a setting value very soon, be blown into air to mould again cold water is blown away completely, complete whole injection moulding process.
The present invention has also avoided in mold heated process because cooling water exists heat absorption and then delays mould programming rate; Prevent the harm that cooling water causes pipeline and operating personnel because of heating and gasifying.
Accompanying drawing explanation
Fig. 1 is assembling sketch of the present invention.
Fig. 2 is that the A of front mould in Fig. 1 is to schematic diagram.
Fig. 3 is that the B of front mould in Fig. 1 is to schematic diagram.
Fig. 4 is the structural representation of cooling tube.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
As shown in Figures 1 to 4, a kind of high-precision high-speed hot-cold die, comprises front mould 1, rear mold 2 and electric control gear, within front mould 1 and rear mold 2, accompanies upper and lower workpiece 3 and cap pouring port; In front mould 1, be laterally embedded with in order from top to bottom cooler 4, similarly, in rear mold 2, be laterally embedded with in order from top to bottom cooler 4, all coolers 4 are all tightly connected with the flow controller of pipeline and cooling fluid, and the flow controller of cooling fluid and motor-operated control valve 6 are carried out and are electrically connected with electric control gear; And in perpendicular interior the heating that is inserted in front mould 1 of electric heating tube 5, temperature sensor is arranged in die body and with electric control gear and carries out and be electrically connected; The action of electric control gear is controlled by instrument is accurate.
The course of work of the present invention is: by instrument design temperature number, after treatment to electric control gear output control signal, by the flow of the size of current of control signal control heater and the cooling fluid of cooler, the electric heating tube that utilization is embedded in mould inside directly heats injection mold, first mold temperature is brought up to a setting value, then start to cavity injection plastic cement, injection machine complete pressurize proceed to cooling after, start to inject cold water, mold temperature drops to die sinking after a setting value very soon, being blown into air to mould again blows away cold water completely, complete whole injection moulding process.The present invention utilizes electric heating in 20 seconds, plastic cement temperature to be heated to forming temperature 280 to spend, and can about 40 seconds, make afterwards it be cooled to 20 degree left and right.
The present invention can thoroughly solve surface and weld line, welds the defects such as trace, improves product surface fineness; Can significantly shorten molding cycle, raise the efficiency, remove secondary operations from and spray the cost of high lac varnish, yields reaches more than 98%; Product after its processing does not need the following process of spraying paint, and improves yield rate 20-30%.
Claims (4)
1. a high-precision high-speed hot-cold die, comprise front mould, rear mold and electric control gear, it is characterized in that: corresponding cavity section, in the forming surface of at least one side form body, be laterally embedded with cooling tube, longitudinally be furnished with and heat and temperature sensor, described cooling tube import is provided with motor-operated control valve, and described motor-operated control valve is realized and being electrically connected with electric control gear with temperature sensor.
2. high-precision high-speed hot-cold die according to claim 1, is characterized in that: also comprise compressed air feedway, described compressed air feedway is come round by motor-operated control valve and cooling tube.
3. high-precision high-speed hot-cold die according to claim 1, is characterized in that: described cooling tube import is provided with flow controller, and described flow controller is realized and being electrically connected with electric control gear.
4. high-precision high-speed hot-cold die according to claim 1, is characterized in that: described in be provided with heating tube in heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410068431.1A CN103862626A (en) | 2014-02-27 | 2014-02-27 | High-precision high speed cold and hot mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410068431.1A CN103862626A (en) | 2014-02-27 | 2014-02-27 | High-precision high speed cold and hot mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103862626A true CN103862626A (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410068431.1A Pending CN103862626A (en) | 2014-02-27 | 2014-02-27 | High-precision high speed cold and hot mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103862626A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105365173A (en) * | 2015-12-11 | 2016-03-02 | 滁州市博康模具塑料有限公司 | Quick thermoplastic forming process |
| CN111136846A (en) * | 2018-11-06 | 2020-05-12 | 株式会社盘石普瑞科技 | Float manufacturing equipment |
| CN111300756A (en) * | 2020-03-05 | 2020-06-19 | 上汽通用汽车有限公司 | Temperature control injection mold and spraying-free injection molding method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201693748U (en) * | 2010-04-09 | 2011-01-05 | 常州煜明电子有限公司 | High-precision high-speed hot and cold mould |
-
2014
- 2014-02-27 CN CN201410068431.1A patent/CN103862626A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201693748U (en) * | 2010-04-09 | 2011-01-05 | 常州煜明电子有限公司 | High-precision high-speed hot and cold mould |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105365173A (en) * | 2015-12-11 | 2016-03-02 | 滁州市博康模具塑料有限公司 | Quick thermoplastic forming process |
| CN111136846A (en) * | 2018-11-06 | 2020-05-12 | 株式会社盘石普瑞科技 | Float manufacturing equipment |
| CN111300756A (en) * | 2020-03-05 | 2020-06-19 | 上汽通用汽车有限公司 | Temperature control injection mold and spraying-free injection molding method |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140618 |
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| WD01 | Invention patent application deemed withdrawn after publication |