WO2021103176A1 - 一种汽车密封条植绒带加热贴合工艺 - Google Patents

一种汽车密封条植绒带加热贴合工艺 Download PDF

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Publication number
WO2021103176A1
WO2021103176A1 PCT/CN2019/125088 CN2019125088W WO2021103176A1 WO 2021103176 A1 WO2021103176 A1 WO 2021103176A1 CN 2019125088 W CN2019125088 W CN 2019125088W WO 2021103176 A1 WO2021103176 A1 WO 2021103176A1
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flocking
sealing strip
tape
bonding
heating
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PCT/CN2019/125088
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English (en)
French (fr)
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陈正林
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陈正林
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Publication of WO2021103176A1 publication Critical patent/WO2021103176A1/zh

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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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
    • B29L2031/265—Packings, Gaskets

Definitions

  • the invention belongs to the technical field of automobile sealing strip flocking, in particular to a heating bonding process for automobile sealing strip flocking tape.
  • On-line electrostatic flocking The disadvantage is that the existing seal factory uses oily flocking glue for on-line electrostatic flocking. Currently, there is no water-based glue on the market that can meet the requirements. Therefore, there are many toxic and harmful substances on the construction site and it is not environmentally friendly. , And the current flocking process is also complicated, especially when part of the cross-section shape is curved, there are often phenomena such as glue leakage, resulting in large scraps.
  • PE tape lamination + online electrostatic flocking The disadvantage is that PE tape can only be attached to the bottom edge, not the lip edge. The bottom edge and the lip edge need to be combined with two processes, which is more cumbersome. At the same time, the PE tape Although the abrasion resistance is good, it is not resistant to high temperature, and the sealing effect is not good, which is easy to cause abnormal noise of the glass lifting.
  • the purpose of the present invention is to solve the problems of poor flocking effect of the existing sealing strip electrostatic flocking process, complex process, and insufficient environmental protection.
  • the present invention provides a heating bonding process for flocking tapes of automobile sealing strips.
  • the flocking tapes are thermally bonded after the sealing strips are heated.
  • Step 1 Heating, heating the sealing strip to a temperature suitable for bonding
  • Step two bonding, heat bonding the heated sealing strip and the flocking tape together.
  • the heating temperature in the first step is 80-350°C.
  • the bonding in the second step is specifically attaching the flocking tape to the surface of the heated sealing strip, the flocking tape is heated by the heat of the heated sealing strip, and the back glue of the flocking tape is heated to melt and adhere to On the surface of the sealing strip, a sealing strip with a flocked surface is obtained.
  • the bonding temperature in the second step is 90-220°C.
  • the melting temperature of the back glue of the flocking tape in the second step is 100-195°C.
  • pressure is applied to the bonding surface of the sealing strip and the flocking tape, and the pressure ranges from 1 to 36N.
  • the present invention provides a heating bonding process for flocking tapes of automobile sealing strips. After heating the sealing strips, the flocking tapes are thermally bonded. Compared with the sealing strips produced by the traditional electrostatic flocking, the produced sealing strips are more effective.
  • the sealing strip produced by the heating bonding process has better flocking effect, and the fuzz coverage is more uniform.
  • the possibility of increased friction with the glass caused by uneven flocking is reduced, and the car glass is reduced. Noise during lifting. In the process of use, the harmful VOC and harmful irritating gas content of the seal in the car is reduced.
  • Fig. 1 is a flow chart of the heating and bonding process of the flocking tape of automobile weather strip of the present invention.
  • the terms “installed”, “set”, “provided”, “connected”, “connected”, and “socketed” should be understood in a broad sense.
  • it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediary, or between two devices, elements or components. Connectivity within the room.
  • the specific meanings of the above-mentioned terms in this application can be understood according to specific circumstances.
  • a heating bonding process for automotive sealing strip flocking tape of this embodiment the sealing strip is heated and then the flocking tape is thermally bonded, and the produced sealing strip is compared with the traditional electrostatic flocking production
  • the sealing strip produced by the heating bonding process has a better flocking effect, and the fluff coverage is more uniform, which reduces the possibility of increased friction with the glass due to uneven flocking during use , Reduce the noise of the car glass in the lifting process.
  • the harmful VOC and harmful irritating gas content of the seal in the car is reduced.
  • Step 1 Heating, heating the sealing strip to a temperature suitable for bonding
  • Step two bonding, heat bonding the heated sealing strip and the flocking tape together.
  • the heating temperature in step 1 is 80-350°C, and 250°C is preferred in this embodiment.
  • the bonding in step 2 is specifically attaching the flocking tape to the surface of the heated sealing strip, the flocking tape is heated by the heat of the heated sealing strip, and the back glue of the flocking tape is heated to melt and adhere to the sealing strip. On the surface, a sealing strip with a flocked surface is obtained.
  • the bonding temperature in the second step is 90-220°C
  • the melting temperature of the flocking tape back glue in the second step is 100-195°C.
  • pressure is applied to the bonding surface of the sealing strip and the flocking tape, and the pressure ranges from 1 to 36N.
  • the bonding speed of the thermal bonding process in this embodiment is 1m/min ⁇ 35m/min.
  • the bonding speed is too fast, the back glue of the flocking tape is not completely combined with the sealing strip and the bonding is completed. The effect is not good.
  • the bonding speed is too low, the temperature of the non-bonded sealing strip will be reduced due to the slow bonding speed and the temperature will be lowered during the bonding, so that the back glue of the flocking tape cannot be better thermally melted.
  • the flocking belt and the sealing strip are not tightly combined, and the effect cannot be achieved.
  • the heat of the sealing strip is transferred to the flocking belt and the temperature of the flocking belt is increased to 220°C.
  • the back glue of the flocking tape is heated and melted into a molten state, the molten back glue is pressed on the bonding surface, and the molten back glue is fully contacted with the surface of the sealing strip under pressure squeezing, and the flocking
  • the gap between the tape and the sealing strip is filled and bonded with the active group of the sealing strip, the flocking tape and the sealing strip are more firm, and the flocking tape of the sealing strip fits more evenly, and the sealing strip is in use During the process, the flocking tape will not be unevenly attached to cause large friction between the flocking surface and the car glass to generate noise.
  • the bonding speed of this embodiment is preferably 10m/min, so that the flocking tape and the sealing strip will not be too fast in the production process to cause the flocking tape and the sealing strip to not be tightly combined, nor If the bonding speed is too slow, the temperature of the flocking tape and the sealing strip is lowered, and the bonding of the flocking tape and the sealing strip is unstable.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Seal Device For Vehicle (AREA)

Abstract

一种汽车密封条植绒带加热贴合工艺，属于密封条植绒技术领域。将密封条经过加热后进行植绒带热贴合，生产出的密封条相比传统的静电植绒生产出的密封条而言，加热贴合工艺生产出的密封条植绒效果更好，绒毛覆盖的更加均匀，在使用过程中降低了由于植绒不均匀带来的与玻璃摩擦力变大的可能性，降低了汽车玻璃在升降过程中的噪音。在使用过程中降低了车内密封条有害VOC及有害刺激性气体的含量。

Description

一种汽车密封条植绒带加热贴合工艺
相关申请的交叉引用
本申请要求于2019年11月28日提交中国专利局，申请号为2019111947879，发明名称为“一种汽车密封条植绒带加热贴合工艺”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明属于汽车密封条植绒技术领域，具体来说是一种汽车密封条植绒带加热贴合工艺。
背景技术
玻璃导槽类、水切条类等汽车密封条生产时，需要在密封条与玻璃接触面植绒或贴绒，以降低玻璃升降的摩擦力和噪音，提高汽车的密封性和舒适度。现有技术采用在线静电植绒或线外静电植绒的工艺生产。主要有以下两种：
1、在线静电植绒，缺点为现有的密封件厂进行在线静电植绒均采用油性的植绒胶水，目前市场上还没有水性的胶水可以满足要求，因此施工现场有毒有害物质多，不环保，且目前植绒的工艺也复杂，特别是部分断面形状为曲面的，经常会出现漏胶等现象，造成的报废大。
2、PE带贴合+在线静电植绒，缺点为PE带只能贴合在底边，不能贴合唇边，底边和唇边部位需要采用两种工艺结合的方式比较繁琐，同时PE带虽然耐磨效果好，但是不耐高温，且密封性效果不好，容易引起玻璃升降异响。
因此，需要一种更加环保且生产简便的密封条植绒工艺，降低成本且提高植绒效果。
发明内容
本发明的目的在于解决现有的密封条静电植绒工艺植绒效果差、工艺复杂且不够环保的问题。
为达到上述目的，本发明提供的技术方案为：
本发明的一种汽车密封条植绒带加热贴合工艺，将密封条经过加热后进行植绒带热贴合。
优选地，包括如下步骤：
步骤一、加热，将密封条加热到适合贴合的温度；
步骤二、贴合，将加热后的密封条和植绒带一起进行热贴合。
优选地，所述步骤一中的加热温度为80～350℃。
优选地，所述步骤二中的贴合具体为将植绒带附着在加热后的密封条表面，植绒带被加热后的密封条热量加热，植绒带的背胶受到加热熔融粘附在密封条表面，得到带有植绒面的密封条。
优选地，所述步骤二中的贴合温度为90～220℃。
优选地，所述步骤二中的植绒带背胶的熔融温度为100～195℃。
优选地，所述步骤二中，加热后的密封条和植绒带在热贴合时，在密封条和植绒带的贴合面上受到压力，所述压力的范围为1～36N。
采用本发明提供的技术方案，与现有技术相比，具有如下有益效果：
本发明的一种汽车密封条植绒带加热贴合工艺，将密封条经过加热后进行植绒带热贴合，生产出的密封条相比传统的静电植绒生产出的密封条而言，加热贴合工艺生产出的密封条植绒效果更好，绒毛覆盖的更加均匀，在使用过程中降低了由于植绒不均匀带来的与玻璃摩擦力变大的可能性，降低了汽车玻璃 在升降过程中的噪音。在使用过程中降低了车内密封条有害VOC及有害刺激性气体的含量。
附图说明
图1为本发明的一种汽车密封条植绒带加热贴合工艺的流程图。
具体实施方式
为了使本技术领域的人员更好地理解本申请方案，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分的实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本申请保护的范围。
需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
在本申请中，术语“上”、“下”、“左”、“右”、“前”、“后”、“顶”、“底”、“内”、“外”、“中”、“竖直”、“水平”、“横向”、“纵向”等指示的方位或位置关系为基于附图所示的方位或位置关系。这些术语主要是为了更好地描述本申请及其实施例，并非用于限定所指示的装置、元 件或组成部分必须具有特定方位，或以特定方位进行构造和操作。
并且，上述部分术语除了可以用于表示方位或位置关系以外，还可能用于表示其他含义，例如术语“上”在某些情况下也可能用于表示某种依附关系或连接关系。对于本领域普通技术人员而言，可以根据具体情况理解这些术语在本申请中的具体含义。
此外，术语“安装”、“设置”、“设有”、“连接”、“相连”、“套接”应做广义理解。例如，可以是固定连接，可拆卸连接，或整体式构造；可以是机械连接，或电连接；可以是直接相连，或者是通过中间媒介间接相连，又或者是两个装置、元件或组成部分之间内部的连通。对于本领域普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
实施例1
参照附图1，本实施例的一种汽车密封条植绒带加热贴合工艺，将密封条经过加热后进行植绒带热贴合，生产出的密封条相比传统的静电植绒生产出的密封条而言，加热贴合工艺生产出的密封条植绒效果更好，绒毛覆盖的更加均匀，在使用过程中降低了由于植绒不均匀带来的与玻璃摩擦力变大的可能性，降低了汽车玻璃在升降过程中的噪音。在使用过程中降低了车内密封条有害VOC及有害刺激性气体的含量。
本实施例的工艺包括如下步骤：
步骤一、加热，将密封条加热到适合贴合的温度；
步骤二、贴合，将加热后的密封条和植绒带一起进行热贴合。
具体的，步骤一中的加热温度为80～350℃，本实施例优选250℃。
具体的，步骤二中的贴合具体为将植绒带附着在加热后的密封条表面，植绒带被加热后的密封条热量加热，植绒带的背胶受到加热熔融粘附在密封条表面，得到带有植绒面的密封条。所述步骤二中的贴合温度为90～220℃，所述步骤二中的植绒带背胶的熔融温度为100～195℃。所述步骤二中，加热后的密封条和植绒带在热贴合时，在密封条和植绒带的贴合面上受到压力，所述压力的范围为1～36N。
本实施例的热贴合过程的贴合速度为1m/min～35m/min，当贴合速度过快时，植绒带的背胶还没有完全与密封条结合均匀就完成贴合，贴合效果不好，当贴合速度过低时，加热未贴合密封条的温度会由于贴合速度过慢而在贴合时温度降低，使得植绒带的背胶不能更好的进行热熔造成植绒带和密封条结合不紧密，达不到效果。
本实施例中，当加热后的密封条与植绒带接触时，由于密封条被加热到250℃，因此密封条的热量会传递给植绒带并将植绒带的温度升高到220℃，此时植绒带的背胶受热熔融成为熔融状态，熔融状态的背胶在贴合面上受到压力，在压力的挤压下熔融状态的背胶与密封条表面进行充分接触，将植绒带和密封条之间的空隙填满并与密封条活性基团进行粘合，植绒带和密封条的牢固性更好，同时密封条的植绒带贴合的更加均匀，密封条在使用过程中不会由于植绒带贴合的不均匀而导致植绒面和汽车玻璃进行较大摩擦产生噪音。
同时，本实施例的贴合速度优选为10m/min，使得植绒带和密封条在生产过程中不会由于贴合速度过快而导致植绒带和密封条结合不紧密，也不会由于贴合速度过慢而导致植绒带和密封条温度降低造成的植绒带和密封条贴合不稳定。
以上所述实施例仅表达了本发明的某种实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制；应当指出的是，对于本领域 的普通技术人员来说，在不脱离┅本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围；因此，本发明专利的保护范围应以所附权利要求为准。

Claims (7)

  1. 一种汽车密封条植绒带加热贴合工艺，其特征在于：将密封条经过加热后进行植绒带热贴合。
  2. 根据权利要求1所述的一种汽车密封条植绒带加热贴合工艺，其特征在于，包括如下步骤：
    步骤一、加热，将密封条加热到适合贴合的温度；
    步骤二、贴合，将加热后的密封条和植绒带一起进行热贴合。
  3. 根据权利要求2所述的一种汽车玻璃导槽密封条植绒带热贴合工艺，其特征在于：所述步骤一中的加热温度为80～350℃。
  4. 根据权利要求2所述的一种汽车玻璃导槽密封条植绒带热贴合工艺，其特征在于：所述步骤二中的贴合具体为将植绒带附着在加热后的密封条表面，植绒带被加热后的密封条热量加热，植绒带的背胶受到加热熔融粘附在密封条表面，得到带有植绒面的密封条。
  5. 根据权利要求2所述的一种汽车玻璃导槽密封条植绒带热贴合工艺，其特征在于：所述步骤二中的贴合温度为90～220℃。
  6. 根据权利要求2所述的一种汽车玻璃导槽密封条植绒带热贴合工艺，其特征在于：所述步骤二中的植绒带背胶的熔融温度为100～195℃。
  7. 根据权利要求2所述的一种汽车玻璃导槽密封条植绒带热贴合工艺，其特征在于：所述步骤二中，加热后的密封条和植绒带在热贴合时，在密封条和植绒带的贴合面上受到压力，所述压力的范围为1～36N。
PCT/CN2019/125088 2019-11-28 2019-12-13 一种汽车密封条植绒带加热贴合工艺 WO2021103176A1 (zh)

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