CN104260301A - Plastic injection moulding technology - Google Patents
Plastic injection moulding technology Download PDFInfo
- Publication number
- CN104260301A CN104260301A CN201410374802.9A CN201410374802A CN104260301A CN 104260301 A CN104260301 A CN 104260301A CN 201410374802 A CN201410374802 A CN 201410374802A CN 104260301 A CN104260301 A CN 104260301A
- Authority
- CN
- China
- Prior art keywords
- raw materials
- raw material
- mould
- injection
- shooting technique
- 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.)
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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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
-
- 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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/74—Heating or cooling of the injection unit
-
- 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
- B29C45/16—Making multilayered or multicoloured articles
Abstract
The invention discloses a plastic injection moulding technology, and relates to the field of the manufacturing technique of plastic products. The technology comprises the following steps of burdening, wherein raw materials are mixed according to a certain matching ratio and are evenly stirred; molten plasticizing, wherein the matched raw materials are put into an injection moulding machine and are heated to a certain temperature by adopting ultrasonic vibration, and heat preservation is carried out for 10 minutes to 25 minutes; pressure application injection, wherein under a certain pressure and speed, the molten raw materials are injected into a mould cavity through an injection device; mould filling cooling, wherein after the mould cavity is filled with the molten raw materials, a certain pressure is kept, and the molten raw materials are waited to be cooled and cured; mould ejection part taking; after the raw materials are completely cooled, mould sinking is carried out, and a mould ejection mechanism is used for ejecting out a product. According to the technology, ultrasonic vibration heating is carried out, colourment can be mixed with materials better, and the uneven color phenomenon can be obviously improved; in addition, due to ultrasonic vibration heating, energy resources can be saved, plasticizing time of the raw materials can be shortened, and the technological process is shortened.
Description
Technical field
The present invention relates to the production technology field of plastic products, refer more particularly to a kind of plastics Shooting Technique.
Background technology
Injection machine has another name called injection (mo(u)lding) machine or injector, it thermoplastic or thermosetting plastics is utilized mould for plastics to make the main former of the plastic products of various shape, be divided into vertical, horizontal, all electric, injection moulding function heating of plastic, high pressure is applied to molten plastic, makes it penetrate and be full of mold cavity.
The heating system of injection machine is used to heating cylinder and injection nozzle, and injecting machine material tube generally adopts electric heating coil as heater, is arranged on the outside of barrel, and detects with thermocouple segmentation, heat by barrel heat conduction for material plasticizing provides thermal source; Now in order to energy-conservation, also have and adopt electromagnetic heater as heater, electromagnetic heater is many one layer of heat preservation layer, heat utilization rate increases, it directly acts on the heating of material pipe, decrease the heat energy loss of heat trnasfer, the heating of firing rate ratio resistance wants fast more than 1/4th, decreases the heat time, firing rate is fast, production efficiency just improves, and allows motor be in saturation state, makes to which reduce the electric energy loss that the low demand of high power causes.
The raw material that plastics are produced in injection moulding comprises toner, dispersed oil and material etc., prior art is all rely on mechanical agitation that toner and raw material are fully mixed, but mechanical agitation is difficult to stir, make it mix if postorder process does not further operate toner and material, so will cause plastic products uneven color.
Through retrieval, China Patent No.: ZL200810122023.4, denomination of invention is: a kind of electromagnetic heating system of injection mould machine, comprise barrel, electrical control cabinet, also comprises: segmentation is wound on the electromagnetic induction coil outside barrel, produces alternating magnetic field after passing to high-frequency high-voltage; Be located at the temperature-sensitive element on each point for measuring temperature, described point for measuring temperature is arranged near every section of electromagnetic induction coil; Electromagnetic controller, comprises microprocessor and peripheral circuit, power current is converted into high-frequency high-voltage current and outputs to electromagnetic induction coil, and Real-Time Monitoring barrel temperature, the heating power of each section of adjustment in time.The control circuit of this application case is on a circuit board integrated, achieves a multiple coil of heating host computer control, simplifies heating system, decrease cost of manufacture; But the heating system of this application case does not impel the composition between raw material to mix.
Summary of the invention
The invention provides a kind of plastics Shooting Technique, solve in prior art, Shooting Technique can not make toner and material fully mix, thus makes plastic products occur the problem of uneven color.
For solving the problems of the technologies described above, technical scheme provided by the invention is:
A kind of plastics Shooting Technique of the present invention, is characterized in that, comprise following steps:
(1) prepare burden: by raw material according to the mixing of certain proportioning, and stir;
(2) fusion plastification: the raw material prepared is put into injection machine, adopts ultrasonic wave vibration heating to uniform temperature, and is incubated 10 ~ 25 minutes;
(3) to exert pressure injection: to the raw material under molten condition under certain pressure and speed, by injection device by the material injecting mould die cavity of melting;
(4) mold filling cooling: after being full of fused raw material in mold cavity, keeps certain pressure to wait for fused raw material cooling curing;
(5) backform pickup: die sinking after cooling completely, ejects product with mold pushing mechanism.
Preferably, described ultrasonic wave heating-up temperature is 250 ~ 350 DEG C.
Preferably, described hyperacoustic frequency is 18 ~ 25kHz.
Preferably, described injection device is Screw injection device.
Adopt technical scheme provided by the invention, compared with existing known technology, there is following beneficial effect:
(1) a kind of plastics Shooting Technique of the present invention, adopt ultrasonic wave vibration heating, be convert by transducer the high-frequency oscillation signal sent by supersonic generator to high frequency mechanical oscillation and propagate on material, then be converted into heat energy, thus to raw material Fast Heating, and the thermal efficiency is high.
(2) a kind of plastics Shooting Technique of the present invention, due to hyperacoustic cavitation, can impel the abundant mixing of toner and material, prevent finished product from occurring the uneven of color.
(3) a kind of plastics Shooting Technique of the present invention, technical process is simple, easy to operate
Detailed description of the invention
Below in conjunction with detailed description of the invention, technical scheme of the present invention is further described in detail.
A kind of plastics Shooting Technique, is characterized in that, comprise following steps:
(1) prepare burden: by raw material according to the mixing of certain proportioning, and stir;
(2) fusion plastification: the raw material prepared is put into injection machine, adopt ultrasonic wave vibration heating to 250 ~ 350 DEG C, and be incubated 10 ~ 25 minutes, hyperacoustic vibration frequency is 18 ~ 25kHz, the high-frequency oscillation signal that supersonic generator sends converts high frequency mechanical oscillation to by transducer and propagates on material, be converted into heat energy again, thus to raw material Fast Heating, and the thermal efficiency is high, in addition, due to hyperacoustic cavitation, the abundant mixing of toner and material can be impelled, prevent finished product from occurring the uneven of color;
(3) to exert pressure injection: to the raw material under molten condition under certain pressure and speed, by Screw injection device by the material injecting mould die cavity of melting;
(4) mold filling cooling: after being full of fused raw material in mold cavity, keeps certain pressure to wait for fused raw material cooling curing;
(5) backform pickup: die sinking after cooling completely, ejects product with mold pushing mechanism.
It should be noted last that, above detailed description of the invention is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of the technical program technical scheme, it all should be encompassed in the middle of the right of the technical program.
Claims (4)
1. a plastics Shooting Technique, is characterized in that, comprises following steps:
(1) prepare burden: by raw material according to the mixing of certain proportioning, and stir;
(2) fusion plastification: the raw material prepared is put into injection machine, adopts ultrasonic wave vibration heating to uniform temperature, and is incubated 10 ~ 25 minutes;
(3) to exert pressure injection: to the raw material under molten condition under certain pressure and speed, by injection device by the material injecting mould die cavity of melting;
(4) mold filling cooling: after being full of fused raw material in mold cavity, keeps certain pressure to wait for fused raw material cooling curing;
(5) backform pickup: die sinking after cooling completely, ejects product with mold pushing mechanism.
2. plastics Shooting Technique according to claim 1, is characterized in that, described hyperacoustic frequency is 18 ~ 25kHz.
3. plastics Shooting Technique according to claim 1, is characterized in that, described ultrasonic wave heating-up temperature is 250 ~ 350 DEG C.
4., according to described plastics Shooting Technique arbitrary in claims 1 to 3, it is characterized in that, described injection device is Screw injection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410374802.9A CN104260301A (en) | 2014-07-31 | 2014-07-31 | Plastic injection moulding technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410374802.9A CN104260301A (en) | 2014-07-31 | 2014-07-31 | Plastic injection moulding technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104260301A true CN104260301A (en) | 2015-01-07 |
Family
ID=52151944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410374802.9A Withdrawn CN104260301A (en) | 2014-07-31 | 2014-07-31 | Plastic injection moulding technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104260301A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106142433A (en) * | 2016-07-20 | 2016-11-23 | 王波 | A kind of Novel injection moulding machine preventing cavity |
| CN107226931A (en) * | 2017-07-20 | 2017-10-03 | 吕省华 | High resistant to elevated temperatures novel plastic lighter plastics of a kind of intensity and preparation method thereof |
| CN108044871A (en) * | 2017-12-20 | 2018-05-18 | 嘉丰工业科技（惠州）有限公司 | A kind of Shooting Technique |
| CN108927912A (en) * | 2018-06-08 | 2018-12-04 | 安徽国生新材料有限公司 | A kind of separation and recovery method of waste plastic |
| CN111531826A (en) * | 2020-04-09 | 2020-08-14 | 南京百鸿科技有限公司 | Injection molding process of automobile fan |
| CN112238582A (en) * | 2019-07-16 | 2021-01-19 | 白相义 | Manufacturing method of suspension assembled floor |
| CN112675556A (en) * | 2020-12-30 | 2021-04-20 | 如皋市恒祥塑料有限公司 | Safe and environment-friendly plastic product sounder toy and production process thereof |
| CN113183405A (en) * | 2021-05-04 | 2021-07-30 | 普力达新材料科技(深圳)有限公司 | Fully-degradable tableware and preparation method thereof |
-
2014
- 2014-07-31 CN CN201410374802.9A patent/CN104260301A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106142433A (en) * | 2016-07-20 | 2016-11-23 | 王波 | A kind of Novel injection moulding machine preventing cavity |
| CN107226931A (en) * | 2017-07-20 | 2017-10-03 | 吕省华 | High resistant to elevated temperatures novel plastic lighter plastics of a kind of intensity and preparation method thereof |
| CN108044871A (en) * | 2017-12-20 | 2018-05-18 | 嘉丰工业科技（惠州）有限公司 | A kind of Shooting Technique |
| CN108927912A (en) * | 2018-06-08 | 2018-12-04 | 安徽国生新材料有限公司 | A kind of separation and recovery method of waste plastic |
| CN112238582A (en) * | 2019-07-16 | 2021-01-19 | 白相义 | Manufacturing method of suspension assembled floor |
| CN111531826A (en) * | 2020-04-09 | 2020-08-14 | 南京百鸿科技有限公司 | Injection molding process of automobile fan |
| CN112675556A (en) * | 2020-12-30 | 2021-04-20 | 如皋市恒祥塑料有限公司 | Safe and environment-friendly plastic product sounder toy and production process thereof |
| CN113183405A (en) * | 2021-05-04 | 2021-07-30 | 普力达新材料科技(深圳)有限公司 | Fully-degradable tableware and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20150107 |