CN104260377A - Processing technology capable of synchronously eliminating stress mark and buckling deformation of plastic parts - Google Patents
Processing technology capable of synchronously eliminating stress mark and buckling deformation of plastic parts Download PDFInfo
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- CN104260377A CN104260377A CN201410395040.0A CN201410395040A CN104260377A CN 104260377 A CN104260377 A CN 104260377A CN 201410395040 A CN201410395040 A CN 201410395040A CN 104260377 A CN104260377 A CN 104260377A
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- 239000004033 plastic Substances 0.000 title claims abstract description 43
- 238000005516 engineering process Methods 0.000 title claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 29
- 238000007493 shaping process Methods 0.000 claims abstract description 27
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 239000002991 molded plastic Substances 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims abstract description 6
- 238000005507 spraying Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000005488 sandblasting Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 210000002268 wool Anatomy 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention discloses a processing technology capable of synchronously eliminating stress mark and buckling deformation of plastic parts. The processing technology comprises the following steps: (1) the molded plastic parts are put in a shaping tool; (2) the shaping tool with the plastic parts is put in a high-temperature heating device for high-temperature shaping; (3) when the surface temperature of the plastic parts reaches 70-80 DEG C, the plastic parts are taken out from a spray room, and are cooled for shaping under normal temperature; and (4) the products are taken out from the shaping tool after the cooling is finished, wherein the high-temperature heating device in the step (2) is a steam spray room or an infrared heating room; the steam spray room uses high-temperature and high-pressure steam to spray the products; the pressure mark on the surfaces of the products is eliminated by using the high pressure of the steam, and the high-temperature shaping for the products is realized by using the high temperature of the steam; and the infrared heating room uses infrared heating tubes to heat the products so as to realize the high-temperature shaping. The processing technology has no need to invest a large number of manpower and material resources, improves the production efficiency, is high in stability, and improves the yield of the molded plastic parts.
Description
Technical Field
The invention relates to a processing technology capable of eliminating stress marks and buckling deformation of plastic parts at the same time, and belongs to the technical field of injection molding.
Background
When the plastic part is injection molded, due to factors such as structural shape difference, thickness change, uneven material flow and cooling shrinkage of the plastic part, product defects such as warping deformation of the plastic part and stress marks on the surface can be caused after the plastic part is injection molded, and the plastic part is not easy to assemble and influence the appearance during later product assembly.
The existing method for eliminating the stress marks of the plastic parts is wool felt wiping and surface sand blasting treatment, and the wool felt wiping treatment of the plastic parts is to repeatedly wipe the surfaces of the plastic parts by using wool felts by workers or mechanical hands so as to reduce the surface gloss and wipe the surfaces uniformly. The defects that if the appearance and the shape of the product are changed greatly, the wiping force cannot be kept consistent, the wiping surface effect is inconsistent, defective products are easy to generate, meanwhile, the number of hands of workers is increased, and the processing cost is correspondingly and greatly increased.
The surface sandblasting treatment of the plastic part is to adopt a sandblaster to carry out high-pressure high-speed spraying on the product by fine glass particles, reduce the surface gloss of the product in a sandblasting mode to uniform gloss, and then put the product into a water tank to be cleaned by ultrasonic waves. The disadvantages of this method are that the sand-blasting machine is used to blast sand and ultrasonic clean the product in the water tank, the consumption of glass particles, water and electric energy is high, the cost is high, and a certain environmental pollution is caused.
The existing method for eliminating the warping deformation of the product is to adopt a shaping jig to electrically heat and bake and shape at a high temperature, put the shaped plastic part into the shaping jig, put the shaped plastic part into a heating furnace to heat together, when the surface temperature of the plastic part reaches 70-80 ℃, take out the shaping jig with the plastic part, and cool and shape the plastic part at normal temperature.
Disclosure of Invention
The invention aims to solve the technical problem of providing a processing technology capable of eliminating stress marks and buckling deformation of plastic parts at the same time, without large input of manpower and material resources, improving the production efficiency, having good stability, not deforming again after being processed by the technology, and improving the yield of the molded plastic parts.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a processing technology capable of eliminating stress marks and buckling deformation of plastic parts simultaneously comprises the following steps:
(1) placing the molded plastic part into a shaping jig;
(2) putting the shaping jig with the plastic part into a high-temperature heating device for high-temperature shaping;
(3) taking out the plastic part from the spraying room when the surface temperature of the plastic part reaches 70-80 ℃, and cooling and shaping at normal temperature;
(4) taking out the product from the shaping jig after cooling; the method is characterized in that: wherein,
the high-temperature heating device in the step (2) is a steam spraying room or an infrared heating room, the steam spraying room sprays the product by using high-temperature and high-pressure steam, the pressure marks on the surface of the product are eliminated by using the high pressure of the steam, and the product is shaped at high temperature by using the high temperature of the steam; the infrared heating room utilizes the infrared heating pipe to heat the product, realizes high temperature design.
The processing technology capable of eliminating the stress marks and the buckling deformation of the plastic parts simultaneously is characterized in that: the pressure for spraying the product at high pressure by using steam in the steam spraying room is 5Pa-7 Pa.
The processing technology capable of eliminating the stress marks and the buckling deformation of the plastic parts simultaneously is characterized in that: the temperature for high-temperature spraying of the product by steam in the steam spraying room is 140-170 ℃.
The processing technology capable of eliminating the stress marks and the buckling deformation of the plastic parts simultaneously is characterized in that: the heating temperature of the infrared heating pipe in the infrared heating room is 60-170 ℃.
The invention has the beneficial effects that: the method is simple to operate, can be manufactured into a production line type mode, does not need to invest a large amount of manpower and material resources, improves the production efficiency, has high stability, does not deform again after being processed by the process, improves the yield of the molded plastic part, realizes high-temperature molding of the product by adopting a high-temperature steam or infrared heating mode, does not pollute the environment, and has relatively low cost.
Detailed Description
The present invention will be further described with reference to specific embodiments.
The invention discloses a processing technology capable of eliminating stress marks and buckling deformation of plastic parts simultaneously, which comprises the following steps:
(1) placing the molded plastic part into a shaping jig;
(2) putting the shaping jig with the plastic part into a high-temperature heating device for high-temperature shaping;
(3) taking out the plastic part from the spraying room when the surface temperature of the plastic part reaches 70-80 ℃, and cooling and shaping at normal temperature;
(4) taking out the product from the shaping jig after cooling; wherein,
the high-temperature heating device in the step (2) can be a steam spraying room, the product is sprayed by using high-temperature and high-pressure steam, the pressure marks on the surface of the product are eliminated by using the high pressure of the steam, and the product is shaped at high temperature by using the high temperature of the steam; the high-temperature steam is utilized to eliminate pressure marks of the product and realize high-temperature shaping, and no pollution is caused to the environment, the pressure intensity of high-pressure injection of the product by utilizing the steam in the steam spraying room in the embodiment is 5Pa-7Pa, and the effect of the processed product is optimal by combining the processing steps when the temperature of the high-temperature injection is 140 ℃ -170 ℃.
The high-temperature heating device in the step (2) is an infrared heating room, high-temperature and low-temperature alternate heating is performed on the product by using high-temperature and low-temperature changes of an infrared heating pipe, so that when the product is changed at high temperature and low temperature, internal stress of the plastic product is released, force marks on the surface of the plastic product are removed, and then high-temperature shaping is performed.
In conclusion, the processing technology capable of simultaneously eliminating the stress marks and the warping deformation of the plastic parts provided by the invention does not need to invest a large amount of manpower and material resources, improves the production efficiency, has good stability, does not deform again after being processed by the processing technology, and improves the yield of the molded plastic parts.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A processing technology capable of eliminating stress marks and buckling deformation of plastic parts simultaneously comprises the following steps:
(1) placing the molded plastic part into a shaping jig;
(2) putting the shaping jig with the plastic part into a high-temperature heating device for high-temperature shaping;
(3) taking out the plastic part from the spraying room when the surface temperature of the plastic part reaches 70-80 ℃, and cooling and shaping at normal temperature;
(4) taking out the product from the shaping jig after cooling; the method is characterized in that: wherein,
the high-temperature heating device in the step (2) is a steam spraying room or an infrared heating room, the steam spraying room sprays the product by using high-temperature and high-pressure steam, the pressure marks on the surface of the product are eliminated by using the high pressure of the steam, and the product is shaped at high temperature by using the high temperature of the steam; the infrared heating room utilizes the infrared heating pipe to heat the product, realizes high temperature design.
2. The process of claim 1, wherein the plastic part is processed by the following steps: the pressure for spraying the product at high pressure by using steam in the steam spraying room is 5Pa-7 Pa.
3. The processing technology of claim 2, wherein the processing technology is capable of simultaneously eliminating stress marks and warpage of plastic parts, and comprises: the temperature for high-temperature spraying of the product by steam in the steam spraying room is 140-170 ℃.
4. The processing technology of claim 3, wherein the processing technology is capable of simultaneously eliminating stress marks and warpage of plastic parts, and comprises: the heating temperature of the infrared heating pipe in the infrared heating room is 60-170 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410395040.0A CN104260377A (en) | 2014-08-13 | 2014-08-13 | Processing technology capable of synchronously eliminating stress mark and buckling deformation of plastic parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410395040.0A CN104260377A (en) | 2014-08-13 | 2014-08-13 | Processing technology capable of synchronously eliminating stress mark and buckling deformation of plastic parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104260377A true CN104260377A (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410395040.0A Pending CN104260377A (en) | 2014-08-13 | 2014-08-13 | Processing technology capable of synchronously eliminating stress mark and buckling deformation of plastic parts |
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| CN (1) | CN104260377A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106738808A (en) * | 2017-03-02 | 2017-05-31 | 安徽雅格立展示用品有限公司 | A kind of method for shaping and its shaping equipment for curved surface acrylic board |
| CN109572002A (en) * | 2018-12-04 | 2019-04-05 | 广德天运新技术股份有限公司 | A kind of compacting tool set of fiber base cured plate |
| CN112372927A (en) * | 2020-09-22 | 2021-02-19 | 苏州东盺金属科技有限公司 | Plastic part processing technology |
| CN112466762A (en) * | 2020-11-09 | 2021-03-09 | 太极半导体（苏州）有限公司 | Injection molding baking process for improving substrate warping |
| CN116141648A (en) * | 2023-02-02 | 2023-05-23 | 上海至纯精密制造有限公司 | Shaping method for out-of-round injection valve body passage hole |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6392166B1 (en) * | 2000-01-28 | 2002-05-21 | Delphi Technologies, Inc. | Stress relief method for a fluid filled elastomeric bladder |
| CN1689788A (en) * | 2004-04-19 | 2005-11-02 | 亿丰综合工业股份有限公司 | Plastic rubber sheet forming and shaping processing method |
| CN1796087A (en) * | 2004-12-30 | 2006-07-05 | 比亚迪股份有限公司 | Hot moulding method for forming tubular thermoplastic material |
| CN101168297A (en) * | 2007-11-22 | 2008-04-30 | 徐清娒 | Internal stress fast eliminating technique for PC lens and device thereof |
| CN102632624A (en) * | 2012-04-23 | 2012-08-15 | 张李忠 | Device and technical method for performing on-line thermal treatment on plastic section bar |
-
2014
- 2014-08-13 CN CN201410395040.0A patent/CN104260377A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6392166B1 (en) * | 2000-01-28 | 2002-05-21 | Delphi Technologies, Inc. | Stress relief method for a fluid filled elastomeric bladder |
| CN1689788A (en) * | 2004-04-19 | 2005-11-02 | 亿丰综合工业股份有限公司 | Plastic rubber sheet forming and shaping processing method |
| CN1796087A (en) * | 2004-12-30 | 2006-07-05 | 比亚迪股份有限公司 | Hot moulding method for forming tubular thermoplastic material |
| CN101168297A (en) * | 2007-11-22 | 2008-04-30 | 徐清娒 | Internal stress fast eliminating technique for PC lens and device thereof |
| CN102632624A (en) * | 2012-04-23 | 2012-08-15 | 张李忠 | Device and technical method for performing on-line thermal treatment on plastic section bar |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106738808A (en) * | 2017-03-02 | 2017-05-31 | 安徽雅格立展示用品有限公司 | A kind of method for shaping and its shaping equipment for curved surface acrylic board |
| CN109572002A (en) * | 2018-12-04 | 2019-04-05 | 广德天运新技术股份有限公司 | A kind of compacting tool set of fiber base cured plate |
| CN112372927A (en) * | 2020-09-22 | 2021-02-19 | 苏州东盺金属科技有限公司 | Plastic part processing technology |
| CN112466762A (en) * | 2020-11-09 | 2021-03-09 | 太极半导体（苏州）有限公司 | Injection molding baking process for improving substrate warping |
| CN116141648A (en) * | 2023-02-02 | 2023-05-23 | 上海至纯精密制造有限公司 | Shaping method for out-of-round injection valve body passage hole |
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