CN100509340C - Method for forming color silica gel - Google Patents
Method for forming color silica gel Download PDFInfo
- Publication number
- CN100509340C CN100509340C CNB2005101214348A CN200510121434A CN100509340C CN 100509340 C CN100509340 C CN 100509340C CN B2005101214348 A CNB2005101214348 A CN B2005101214348A CN 200510121434 A CN200510121434 A CN 200510121434A CN 100509340 C CN100509340 C CN 100509340C
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- mold
- silica gel
- hot
- hot pressing
- teflon sheet
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000000741 silica gel Substances 0.000 title claims abstract description 16
- 229910002027 silica gel Inorganic materials 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000004809 Teflon Substances 0.000 claims abstract description 40
- 229920006362 Teflon® Polymers 0.000 claims abstract description 40
- 238000007731 hot pressing Methods 0.000 claims abstract description 34
- 238000007493 shaping process Methods 0.000 claims abstract description 3
- 239000002994 raw material Substances 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 229920001296 polysiloxane Polymers 0.000 abstract description 4
- 239000000047 product Substances 0.000 description 9
- 239000003086 colorant Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229940024463 silicone emollient and protective product Drugs 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
一种彩色硅胶的成形方法，先将铁氟龙片放入模具热压定型；然后将原料放置至热压定型好的铁氟龙片上并放入上述模具型腔内；对模具进行第一次热压，开模，将铁氟龙片取出；对模具进行第二次热压并硫化定型即可制得彩色硅胶成品。本发明方法实现了在同一模具中加工彩色硅胶制品，缩短了生产时间，降低了生产成本，同时提高了产品的质量。A method for forming colored silica gel. First, put the Teflon sheet into the mold for hot-pressing and shaping; Hot press, open the mold, take out the Teflon sheet; heat press the mold for the second time and vulcanize and set it to get the finished color silicone product. The method of the invention realizes the processing of colored silica gel products in the same mould, shortens the production time, reduces the production cost, and improves the quality of the product at the same time.
Description
【技术领域】 【Technical field】
本发明涉及一种彩色硅胶的成形方法。The invention relates to a method for forming colored silica gel.
【背景技术】 【Background technique】
在一些硅胶产品中，为了美观，人们经常在同一产品上设计多种不同颜色。体现在键盘的设计上，就更加明显了，尤其是电视机遥控器键盘的设计。在现有的彩色键盘的生产工艺中，通常是先把不同颜色的按键用模具成形出来，然后将按键按照产品预先的设计模式逐个安装到另一个模具相应的位置上，再用底基色原料将这些按键进行模压形成完整的彩色键盘。但是在一个温度高达170-190℃的模具上，用很短的时间排放多种颜色是不可行的，由于原料瞬间局部的硫化，导致流动性变差，从而使产品尺寸不均匀。并且上述方法中需要多套彩色按键的模具，生产成本较高，同时彩色键盘的质量也受影响。In some silicone products, people often design many different colors on the same product for the sake of aesthetics. Reflected in the design of the keyboard, it is even more obvious, especially the design of the TV remote control keyboard. In the existing production process of color keyboards, the buttons of different colors are usually molded first, and then the buttons are installed one by one on the corresponding position of another mold according to the pre-design pattern of the product, and then the bottom base color raw materials are used to seal the keys. These keys are molded to form a complete color keyboard. But on a mold with a temperature as high as 170-190°C, it is not feasible to discharge multiple colors in a short time. Due to the instantaneous and partial vulcanization of raw materials, the fluidity becomes poor, resulting in uneven product sizes. In addition, the above method requires multiple sets of molds for the colored keys, and the production cost is relatively high, and the quality of the colored keyboard is also affected.
【发明内容】 【Content of invention】
本发明解决的问题是克服现有技术中的问题，提供一种生产成本较低、效率较高的彩色硅胶的成形方法。The problem solved by the invention is to overcome the problems in the prior art and provide a method for forming colored silica gel with lower production cost and higher efficiency.
本发明的技术目的是通过以下方案来实现的：Technical purpose of the present invention is achieved by the following scheme:
一种彩色硅胶的成形方法，包括如下步骤：A method for forming colored silica gel, comprising the steps of:
一、将铁氟龙片放入模具热压定型；1. Put the Teflon sheet into the mold and press it to shape;
二、将多颜色原料放置至热压定型好的铁氟龙片上；2. Place the multi-color raw materials on the hot-pressed Teflon sheet;
三、将上述步骤二中排有多种颜色原料的铁氟龙片放入步骤一中模具型腔内；3. Put the Teflon sheets with multiple color raw materials in the above step 2 into the mold cavity in the step 1;
四、对模具进行第一次热压，开模，将铁氟龙片取出；4. Hot press the mold for the first time, open the mold, and take out the Teflon sheet;
五、对模具进行第二次热压并硫化定型即可制得彩色硅胶成品。5. Carry out the second hot pressing on the mold and vulcanize and set it to get the finished color silicone product.
上述技术方案可进一步改进为：Above-mentioned technical scheme can be further improved as:
所述步骤一中模具热压温度为165℃—185℃。In the step 1, the hot pressing temperature of the mold is 165°C-185°C.
所述所述步骤一中模具热压压力为40kg/cm2—60kg/cm2。The hot pressing pressure of the mold in the step 1 is 40kg/cm 2 -60kg/cm 2 .
所述铁氟龙片的厚度为1.0mm-1.5mm。The thickness of the Teflon sheet is 1.0mm-1.5mm.
所述步骤二前先将多颜色原料进行混炼。Before the second step, the multi-color raw materials are kneaded.
所述步骤二前先将多颜色原料裁切成与所需硅胶按键体积一致的小条或小块。Before the second step, the multi-color raw material is cut into strips or small pieces consistent with the volume of the required silicone keypad.
所述步骤四中热压压力为110kg/cm2—130kg/cm2。The hot pressing pressure in the step 4 is 110kg/cm 2 -130kg/cm 2 .
所述步骤五中热压压力比步骤四中热压压力大30kg/cm2—50kg/cm2。The hot pressing pressure in step five is 30kg/cm 2 -50kg/cm 2 higher than the hot pressing pressure in step four.
所述步骤四中热压温度为165℃—185℃，热压时间为50-80秒。In the step 4, the hot-pressing temperature is 165°C-185°C, and the hot-pressing time is 50-80 seconds.
所述步骤五中热压温度为165℃—185℃，热压时间为130-150秒。In the step five, the hot-pressing temperature is 165°C-185°C, and the hot-pressing time is 130-150 seconds.
本发明的有益效果在于：采用在模具内设置铁氟龙片可以将产品一次性成形，不需开多套彩色按键模具，这样既减少了模具费用，又降低了人工成本，使得整个生产成本降低了，同时对放置彩色原料的时间可以主动控制，也提高了彩色键盘的质量。The beneficial effect of the present invention is that the product can be formed at one time by setting the Teflon sheet in the mold, and there is no need to open multiple sets of color button molds, which not only reduces the mold cost, but also reduces the labor cost, so that the entire production cost is reduced At the same time, the time for placing colored materials can be actively controlled, which also improves the quality of the colored keyboard.
【具体实施方式】 【Detailed ways】
下面对本发明作详细说明。The present invention will be described in detail below.
一种彩色硅胶的成形方法，包括如下步骤：A method for forming colored silica gel, comprising the steps of:
1、将铁氟龙片放入模具热压定型使模具型腔形状复制在铁氟龙片上，这样做可以后续步骤中多颜色原料能够准确的附在模具的每个对应键盘上。为了保证模具型腔形状清晰复制在铁氟龙片上，优选：模具热压温度取165℃—185℃，压力为40kg/cm2—60kg/cm2，更优选为50kg/cm2，铁氟龙片的厚度为1.0mm-1.5mm，同时为了模具型腔形状完整复制在铁氟龙片上，铁氟龙片的外部边缘均超出模具本体，从成本方面考虑，可以取铁氟龙片长和宽比模具本体长和宽均大100mm。1. Put the Teflon sheet into the mold for hot pressing to make the shape of the mold cavity be copied on the Teflon sheet. In this way, the multi-color raw materials can be accurately attached to each corresponding keyboard of the mold in the subsequent steps. In order to ensure that the shape of the mold cavity is clearly reproduced on the Teflon sheet, preferably: the temperature of the mold hot pressing is 165°C-185°C, the pressure is 40kg/cm 2 -60kg/cm 2 , more preferably 50kg/cm 2 , Teflon The thickness of the sheet is 1.0mm-1.5mm. At the same time, in order to completely replicate the shape of the mold cavity on the Teflon sheet, the outer edge of the Teflon sheet exceeds the mold body. Considering the cost, the length and width of the Teflon sheet can be taken It is 100mm larger than the length and width of the mold body.
2、将多颜色原料放置至热压定型好的铁氟龙片上。在多种颜色的原料在放置到铁氟龙片上以前可以按照彩色硅胶成品设计要求在硅胶中加入需要的不同的色素进行混炼至均匀，然后将原料裁切成与成品中按键体积一致的小条或小块，排列在铁氟龙片相应的按键位上。排列顺序视生产要求而定，没有特别规定先后秩序。2. Place multi-color raw materials on the hot-pressed Teflon sheet. Before the raw materials of various colors are placed on the Teflon sheet, different pigments can be added to the silica gel according to the design requirements of the finished color silica gel and mixed until uniform, and then the raw materials are cut into small pieces that are consistent with the volume of the buttons in the finished product. Strips or small pieces are arranged on the corresponding button position of the Teflon sheet. The arrangement order depends on the production requirements, and there is no special order.
3、将上述步骤二中排有多种颜色原料的铁氟龙片放入步骤一中模具型腔内。本发明中模具上设有至少三个导柱，热压定型时导柱可穿透铁氟龙片，从而形成定位孔，当将排有多种颜色原料的铁氟龙片放入模具型腔内时，使铁氟龙片的定位孔对准模具导柱就可以保证铁氟龙片再次放入模具时模具型腔的形状与复制在铁氟龙片上的形状相对应。3. Put the Teflon sheets with various color raw materials in the above step 2 into the mold cavity in the step 1. In the present invention, the mold is provided with at least three guide pillars, and the guide pillars can penetrate the Teflon sheet during hot pressing to form a positioning hole. Aligning the positioning hole of the Teflon sheet with the guide post of the mold can ensure that the shape of the mold cavity corresponds to the shape copied on the Teflon sheet when the Teflon sheet is put into the mold again.
4、对模具进行第一次热压，使原料附在模具上，开模，将铁氟龙片取出。由于铁氟龙片与其他材料一起难以粘接，在高温定型后不易恢复原状，因此本发明中采用铁氟龙作为多颜色原料的载体进出模具。为使多颜色原料更好的脱离铁氟龙片而附在模具上，方便铁氟龙薄片的取出及保持原料的流动性，此次热压压力为110kg/cm2—130kg/cm2，温度与铁氟龙薄片定型时一致，为165℃—185℃，热压时间为50-80秒。4. Carry out the first hot pressing on the mold to make the raw material adhere to the mold, open the mold, and take out the Teflon sheet. Because the Teflon sheet is difficult to bond with other materials, it is not easy to return to its original shape after high temperature setting, so in the present invention, Teflon is used as the carrier of multi-color raw materials to enter and exit the mold. In order to make the multi-color raw materials better separate from the Teflon sheet and attach to the mold, facilitate the removal of the Teflon sheet and maintain the fluidity of the raw material, the hot pressing pressure is 110kg/cm 2 -130kg/cm 2 , the temperature It is consistent with the setting of Teflon sheet, which is 165°C-185°C, and the hot pressing time is 50-80 seconds.
5、对模具进行第二次热压并硫化定型即可制得彩色硅胶成品。第一次加压目的是让多颜色原料脱离铁氟龙片而附在模具型腔里，使模具张开，取出铁氟龙片，第二次加压目的是让多颜色原料在热压的模腔里稳定成形，确保最终成品的厚度和外观符合品质要求。因此优选压力比第一次热压压力大30-50kg/cm2，温度与铁氟龙薄片定型时一致，为165℃—185℃，热压时间为130-150秒。5. Carry out the second hot pressing on the mold and vulcanize and set it to get the finished color silicone product. The purpose of the first pressurization is to let the multi-color raw materials separate from the Teflon sheet and attach to the mold cavity, so that the mold is opened, and the Teflon sheet is taken out. The second pressurization purpose is to let the multi-color raw materials The stable forming in the mold cavity ensures that the thickness and appearance of the final product meet the quality requirements. Therefore, the preferred pressure is 30-50kg/cm 2 higher than the pressure of the first hot pressing, the temperature is consistent with that of the Teflon sheet when it is shaped, and is 165°C-185°C, and the hot pressing time is 130-150 seconds.
本发明方法中铁氟龙片的定型模具，第一次热压，第二次热压模具为机构相同的模具。模具安装在普通硫化成形机上。The shaping mold of Teflon sheet in the method of the present invention, hot pressing for the first time, and hot pressing mold for the second time are the same moulds of mechanism. The mold is installed on a common vulcanization forming machine.
在本发明中的铁氟龙，化学名为聚四氟乙烯，本领域技术人员通称为铁氟龙。本发明方法实现了在同一模具中加工彩色硅胶制品，缩短了生产时间，降低了生产成本，同时提高了产品的质量。The Teflon in the present invention has a chemical name of polytetrafluoroethylene, and those skilled in the art generally call it Teflon. The method of the invention realizes the processing of colored silica gel products in the same mould, shortens the production time, reduces the production cost, and improves the quality of the product at the same time.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101214348A CN100509340C (en) | 2005-12-29 | 2005-12-29 | Method for forming color silica gel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101214348A CN100509340C (en) | 2005-12-29 | 2005-12-29 | Method for forming color silica gel |
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| Publication Number | Publication Date |
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| CN1990210A CN1990210A (en) | 2007-07-04 |
| CN100509340C true CN100509340C (en) | 2009-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005101214348A Expired - Fee Related CN100509340C (en) | 2005-12-29 | 2005-12-29 | Method for forming color silica gel |
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| Country | Link |
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| CN (1) | CN100509340C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128886A (en) * | 2011-11-30 | 2013-06-05 | 靖江市永盛光电科技有限公司 | Conducting resin button silica gel clinker vulcanization processing method |
| CN102700054B (en) * | 2012-03-23 | 2015-11-25 | 东莞市晋源祥塑胶五金电子有限公司 | Polychrome silicone stereoscopic forming method |
| CN103286904A (en) * | 2013-06-09 | 2013-09-11 | 昆山旭展橡塑有限公司 | Forming method of colored silica gel |
| CN103273605B (en) * | 2013-06-09 | 2017-03-08 | 东莞市精盛橡塑有限公司 | A kind of forming method of fireproof silica gel |
-
2005
- 2005-12-29 CN CNB2005101214348A patent/CN100509340C/en not_active Expired - Fee Related
Non-Patent Citations (4)
| Title |
|---|
| 填充聚四氟乙烯塑料的模压成型工艺. 中国科学院兰州化学物理研究所，12-13，石油化学工业出版社. 1976 |
| 填充聚四氟乙烯塑料的模压成型工艺. 中国科学院兰州化学物理研究所，12-13，石油化学工业出版社. 1976 * |
| 硅橡胶按键的生产. 杨方文.有机硅材料，第14卷第3期. 2000 |
| 硅橡胶按键的生产. 杨方文.有机硅材料，第14卷第3期. 2000 * |
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| CN1990210A (en) | 2007-07-04 |
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