WO2021036029A1 - 压敏胶贴合装置及贴合方法 - Google Patents
压敏胶贴合装置及贴合方法 Download PDFInfo
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- WO2021036029A1 WO2021036029A1 PCT/CN2019/120075 CN2019120075W WO2021036029A1 WO 2021036029 A1 WO2021036029 A1 WO 2021036029A1 CN 2019120075 W CN2019120075 W CN 2019120075W WO 2021036029 A1 WO2021036029 A1 WO 2021036029A1
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- pressure
- sensitive adhesive
- release film
- infrared
- roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
- B65H37/04—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations for securing together articles or webs, e.g. by adhesive, stitching or stapling
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- the invention relates to the technical field of industrial adhesive bonding technology, in particular to a pressure-sensitive adhesive bonding device and a bonding method.
- Pressure-sensitive adhesives are mainly acrylic and rubber solvent-based or latex-based adhesives
- the composition of pressure-sensitive adhesive is a special type of adhesive, that is, the glue is applied to the substrate and processed into a strip and made into a reel for supply. It includes solvent-activated adhesive tape, heating-type adhesive tape and pressure-sensitive adhesive tape. Adhesive tape. For example, adhesive plasters and electrical insulating adhesives that are used daily in medicine belong to pressure-sensitive adhesive tapes. Pressure-sensitive adhesive tapes are composed of: 1pressure-sensitive adhesive 2substrate 3bottom treatment agent 4back treatment agent 5release paper; main pressure-sensitive adhesive Ingredients include rubber type and resin type.
- More and more new materials are used in pressure-sensitive adhesives, such as PP, PU, PVC, PE foam and other products are introduced/transferred to production, such as foam series, acrylic core foam tape, etc.; foam series in DuPont There were occasional anchoring failures in the test, and the bonding disorder of ODM foam tape during the lamination production resulted in low production efficiency and insufficient adhesion of the glue to the substrate, resulting in degumming.
- the research process of the prior art mainly includes factors such as lamination temperature, pressure, corona dose setting, etc.
- the results show that the lamination temperature has an important influence on the wetting performance, and thus discloses the technology of bonding under heating to improve the adhesion of the substrate
- the current proposal for heating pressure-sensitive adhesives has disclosed heating methods such as adding electric heating or heat-conducting oil pipe heating to the laminating roller, which has the disadvantages of complex equipment composition and high operating costs. At present, there is an urgent need to produce a simpler, faster and more high-quality heating method. Process and device for laminating pressure-sensitive adhesive with high quality and low price.
- the purpose of the present invention is to provide a pressure-sensitive adhesive bonding device
- Another object of the present invention is to provide the above-mentioned pressure-sensitive adhesive bonding method.
- the present invention provides a pressure-sensitive adhesive bonding device; the pressure-sensitive adhesive bonding device includes:
- Infrared drying device including infrared heat source
- the infrared heat source is arranged at a position with a preset height on the surface of the pressure-sensitive adhesive, and the preset height is adjustable.
- the control unit is used to control the heating of the infrared drying device and the relative movement with the machine.
- the infrared drying device further includes a K-type temperature sensor and a PCL temperature control unit for real-time collection and adjustment of the temperature of the infrared drying device.
- the infrared heat source is a lamp tube, including a medium-wave twin tube and a short-wave twin tube.
- the pressure-sensitive adhesive laminating device further includes a driving unit, a laminating roller set and a release film winding roller set;
- the driving unit is respectively connected with the release film winding roller group and the laminating roller group, and is used to provide driving force for the winding of the release film and the laminating roller group to drive the movement of the first substrate;
- the laminating roller set includes a rubber roller and a back pressure roller.
- the rubber roller and the back pressure roller are respectively arranged on both sides of the plane supporting the first substrate on the machine platform, and the rubber roller and the back pressure roller
- the back pressure roller is arranged on the same vertical surface; the rubber roller is used for winding the pressure-sensitive adhesive tape, and the back pressure roller is used for attaching the pressure-sensitive adhesive to provide pressing force;
- the release film winding roller set is used for peeling and winding the release film wrapped on the outside of the pressure-sensitive adhesive.
- the laminating roller set is a three-roller pressing device with an inverted structure, including a first rubber roller and a second rubber roller arranged side by side on the same horizontal plane, and A back pressure roller arranged on the other side of the horizontal plane;
- the pressure-sensitive adhesive tape includes a first release film and a second release film respectively covering the upper and lower surfaces of the pressure-sensitive adhesive.
- the release film winding roller set includes a first release film winding roller set And a second release film winding roller set, respectively used for peeling and winding the first release film and the second release film;
- the first release film winding roller group and the second release film winding roller group are arranged symmetrically up and down.
- the present invention also provides a pressure-sensitive adhesive bonding method, which includes the following steps:
- the infrared drying device is heated to a preset temperature, and the rubber roller is rolled along the surface of the pressure-sensitive adhesive to adhere to the substrate;
- the infrared drying device includes an infrared heat source with multiple infrared bands;
- the infrared heat source includes a mid-infrared wave band of 2.5-4 ⁇ m and a near-infrared wave band of 0.75-2 ⁇ m.
- the preset temperature range is 30-50°C; the preset temperature is adjusted according to the degree of adhesion between the pressure-sensitive adhesive and the substrate.
- the time for infrared heating on the surface of the pressure-sensitive adhesive is 30-300s.
- a first release film winding roller set is used to peel and wind the first release film
- a second release film winding roller group is used to peel and wind the second release film.
- the present invention has the following technical effects:
- the embodiment of the present invention adopts the infrared heating multi-infrared band heating mode, which can be applied to different glue systems and has a wide range of applications;
- the infrared heating pressure-sensitive adhesive adopted in the embodiments of the present invention has high heating efficiency, and can heat the adhesive surface temperature RT-50°C; for precise temperature control, the adhesive surface temperature is consistent and stable;
- the angle of the infrared drying device is adjustable, the height is driven by a motor, and the height is 600-900mm adjustable; the effective heating width is 300mm, and the width can be customized according to requirements;
- the infrared heating method adopted by the present invention is safer and more convenient to use; the cost is low;
- the infrared heating method used in the present invention cools quickly, and the cooling process does not affect the use of the equipment, and can continue to process other products.
- the traditional heating process is to heat the guide roller, which is slower and slower.
- the product processing efficiency is low.
- Fig. 1 is a schematic structural diagram of a pressure-sensitive adhesive bonding device in an embodiment of the present invention
- FIG. 2 is a schematic diagram of the working principle of the infrared heater in the embodiment of the present invention.
- Figure 3 is a schematic diagram of the laminating process in an embodiment of the present invention.
- the embodiment of the present invention provides a pressure-sensitive adhesive laminating device, as shown in FIG. 1, including:
- Machine 1 supporting the first substrate to be laminated with pressure-sensitive adhesive, and having a control unit on machine 1;
- the infrared drying device 2 includes an infrared heat source 22; the infrared heat source 22 can be set as an open structure. In other practical ways, the infrared drying device 2 also includes a dryer housing, which is used for heat preservation And gather heat from the heat source; the infrared heat source 22 is arranged inside the dryer shell and above the machine 1; in the embodiment of the present invention, the heat preservation method is 120K aluminum silicate heat preservation cotton, and the heat preservation thickness is 60mm; infrared drying The cooling method of the device 2 is air-cooled, an 8mm air source connector is installed to connect to the deflector, and a commercially available air source is used. Further, as shown in FIG.
- the infrared drying device 2 further includes a power supply 23 for supplying power to the infrared device, a fuse 24 for safety on and off, and a temperature control controller 25; in other optional embodiments,
- the controller 25 of the infrared drying device 2 specifically includes a PCL temperature control unit and a K-type temperature sensor, which is used to collect and adjust the temperature of the infrared drying device 2 in real time.
- the infrared heat source 22 is arranged at a position with a preset height on the surface of the pressure-sensitive adhesive, and the preset height is adjustable.
- the control unit is used to control the heating of the infrared drying device 2 and the relative movement with the machine 1;
- the infrared drying device 2 is fixed on the machine platform by a cantilever extending in a direction relatively perpendicular to the support plane where the pressure-sensitive adhesive is attached to the machine platform.
- the cantilever can be extended and contracted to adjust relative to the support.
- the height of the plane which drives the principle of the infrared drying device 2 or is close to the surface of the pressure-sensitive adhesive.
- the infrared heat source 22 is a lamp tube, including a medium-wave twin tube and a short-wave twin tube.
- the machine platform 1 further includes two directional wheels installed at the front end, and two universal wheels installed at the rear. This group of universal wheels has a braking device (not shown).
- the laminating device further includes a driving unit (not shown), a laminating roller group 5 and a release film winding roller group 6;
- the driving unit is respectively connected with the release film winding roller group 6 and the laminating roller group 5, and is used to provide driving force for the winding release film and the laminating roller group 5 to drive the movement of the first substrate;
- the laminating roller set 5 includes a rubber roller and a back pressure roller.
- the rubber roller and the back pressure roller are respectively arranged on both sides of the plane supporting the first substrate on the machine 1, and the rubber roller and the back pressure roller are arranged in the same vertical Surface:
- the rubber roller is used to rewind the pressure-sensitive adhesive tape, and the back pressure roller is used to attach the pressure-sensitive adhesive to provide pressure;
- the release film winding roller set 6 is used for peeling and winding the release film coated on the outside of the pressure-sensitive adhesive.
- the laminating roller set 5 is a three-roller pressing device arranged in an inverted manner, comprising a first rubber roller and a second rubber roller arranged side by side on the same horizontal plane, and Back pressure roller on the other side of the plane;
- the pressure-sensitive adhesive tape includes a first release film and a second release film respectively covering the upper and lower surfaces of the pressure-sensitive adhesive.
- the release film winding roller set 6 includes a first release film winding roller set and The second release film winding roller set is used for peeling and winding the first release film and the second release film respectively;
- the first release film winding roller group and the second release film winding roller group are arranged symmetrically up and down.
- the embodiment of the present invention discloses that the pressure-sensitive adhesive can be heated appropriately to greatly improve the bonding effect; as shown in Figure 3,
- the base material passes through the steel roller 51 as the back pressure roller and the rubber roller 52 as the rubber roller.
- the first release film is peeled off by the first release film winding roller group 61, and then the first release film is peeled off with the base.
- the second release film is peeled off by the second release film winding roller group 62, and the finished product laminated with the pressure-sensitive adhesive to the substrate 8 is wound by the finished product winding roller group 7 .
- the embodiment of the present invention also provides a pressure-sensitive adhesive bonding method, and the bonding method includes the following steps:
- the infrared drying device 2 is heated to a preset temperature, and the rubber roller 51 is rolled along the surface of the pressure-sensitive adhesive to adhere to the substrate;
- the infrared drying device 2 includes an infrared heat source 22 with multiple infrared bands; specifically, the infrared heat source 22 includes a mid-infrared band of 2.5-4 ⁇ m and a near-infrared band of 0.75-2 ⁇ m.
- the preset temperature range of infrared heating is 30-50°C.
- the time for infrared heating on the surface of the pressure-sensitive adhesive is 30-300s.
- the first release film winding roller group is used to peel and wind the first release film; in the laminating step d), the second release film winding roller group is used for the second release film.
- the tape sample is an existing product.
- five different specifications of foam pressure-sensitive adhesive were selected. The specific parameters are shown in Table 1.
- the lamination and delaminating ability of the product and the peeling and delaminating speed have been tested, and the DuPont test confirmed that the maximum delamination speed is used, and there is no separation of the glue from the substrate; in addition, The peeling and delamination speed was also tested during the laminating delamination test; in the test, the peeling and delamination speed corresponding to the peeling adhesion on PC was 300mm/min, and the peeling and delamination speed corresponding to the peeling adhesion on PET was 300mm/min.
- the infrared drying device controls the use power of heaters of different wavelengths to effectively heat the object to be dried. Then find out the best parameters such as power, wavelength, and time.
- the casing of the body 1 and the infrared drying device 2 can be combined with national standard profile welding and sprayed on the surface; the profile size of the body is 60*60*1.5MM.
- the body 1 is equipped with a control unit, adopts a solid-state voltage regulating module, and has a digital LCD display on the body, which is intuitive, simple and accurate; at the same time, a separate electrical box is used for control, and two temperature control instruments are set.
- the infrared drying device 2 adopts two infrared heat sources of mid-infrared and near-infrared, which can be independently controlled to work separately or together; in other feasible ways, a foot switch can also be provided for the infrared drying device.
- a foot switch can also be provided for the infrared drying device.
- some safety protection devices are also provided, and a stainless steel protection cover is installed above the lamp tube of the infrared drying device 2.
- the protection covers have a preset interval, and the width of the interval should not affect the work; the protection cover There is a high temperature warning sign on the outside; a 60mm thick heat shield is installed on the upper part of the protective cover to prevent people from touching the lamp tube. The distance between the heat shield and the protective cover is 100mm. According to the actual situation, the heat insulation board can be disassembled, and the temperature of the upper surface of the heat insulation board should not exceed 50°C.
- the present invention has the following technical effects:
- the embodiment of the present invention adopts the infrared heating multi-infrared band heating mode, which can be applied to different glue systems and has a wide application range;
- the infrared heating pressure-sensitive adhesive adopted in the embodiment of the present invention has high heating efficiency, and can heat the temperature of the adhesive surface from RT to 50°C; for precise temperature control, the adhesive surface temperature is consistent and stable;
- the angle of the infrared drying device is adjustable, the height is driven by a motor, and the height is 600-900mm; the effective heating width is 300mm, and the width can be customized according to requirements;
- the infrared heating method adopted by the present invention is safer and more convenient to use; the cost is low;
- the infrared heating method used in the present invention cools quickly, and the cooling process does not affect the use of the equipment, and can continue to process other products.
- the traditional heating process is to heat the guide roller, which is slower and slower.
- the product processing efficiency is low.
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Abstract
一种压敏胶贴合装置，包括：机台（1），支撑待贴合压敏胶的第一基材，所述机台上设有控制单元；红外烘干装置（2），包括红外热源（22）；所述红外热源设置于压敏胶表面预设高度的位置，且所述预设高度可调，所述控制单元用于控制所述红外烘干装置的加热和与所述机台的相对运动。还包括一种上述压敏胶贴合装置的贴合方法。所述压敏胶贴合装置具有温度精准控制、使用方便快捷，确保胶面温度一致稳定的优点。
Description
本发明涉及工业胶贴合工艺技术领域，尤其涉及压敏胶贴合装置及贴合方法。
压敏胶主要是丙烯酸系和橡胶系的溶剂型或胶乳型胶粘剂；
压敏胶的组成胶粘带是胶粘剂中特殊类型，即将胶液涂于基材上加工成带状并制成卷盘供给的，包括溶剂活化型胶粘带、加热型胶粘带和压敏胶粘带。例如医学上日常用的橡皮膏和电气绝缘胶即属于压敏胶粘带，压敏胶带的组成：①压敏胶粘剂②基材③底层处理剂④背面处理剂⑤隔离纸；压敏胶的主要成分包括橡胶型和树脂型。
目前压敏胶的应用越来越多，范围越来越广，要求越来越严格，为了提高生产效率和质量新的工艺也在更新迭代。
越来越多新的材料使用在压敏胶上，如PP、PU、PVC、PE发泡等产品被推出/转移到生产，如泡棉系列、亚克力芯发泡胶带等；泡棉系列在杜邦测试中偶有锚固失效现象，而ODM泡沫胶带在贴合生产中出现粘接混乱的现象，导致生产效率低下，胶与基材附着力不够，导致脱胶现象。
现有技术的研究工艺主要包括层压温度、压力、电晕剂量设置等因素， 结果表明层压温度对润湿性能有重要影响，从而公开了加热状态下胶粘以提升基材附着力的技术方案，目前给压敏胶加热目前公开了在贴合辊上加装电加热或导热油管加热等加热方法，存在设备组成复杂，运行成本高昂的缺点，目前，亟待产生一种更简便快捷和质优价廉的的压敏胶贴合的工艺及装置。
发明内容
本发明的目的在于提供一种压敏胶贴合装置；
本发明的另一目的在于提供上述压敏胶贴合的方法。
一方面，本发明提供一种压敏胶贴合装置；所述压敏胶贴合装置包括：
机台，支撑待贴合压敏胶的第一基材，所述机台上设有控制单元；
红外烘干装置，包括红外热源；
所述红外热源设置于压敏胶表面预设高度的位置，且所述预设高度可调，所述控制单元用于控制所述红外烘干装置的加热和与所述机台的相对运动。
作为本发明实施方式的进一步改进，所述红外烘干装置还包括K型感温器和PCL控温单元，用于对所述红外烘干装置的温度进行实时采集和调整。
作为本发明实施方式的进一步改进，其特征在于，所述红外热源为灯管，包括中波孪管和短波孪管。
作为本发明实施方式的进一步改进，所述压敏胶贴合装置还包括驱动单元、贴合辊组和离型膜收卷辊组；
所述驱动单元分别与所述离型膜收卷辊组和贴合辊组相连接，用于为收 卷离型膜以及贴合辊组带动所述第一基材运动提供驱动力；
所述贴合辊组，包括胶辊和背压辊，所述胶辊和背压辊分别设置在所述机台上支撑第一基材的平面的两侧，且所述胶辊和所述背压辊设置于同一个垂直面上；所述胶辊用于收卷压敏胶带，所述背压辊用于压敏胶贴附提供压紧力；
所述离型膜收卷辊组用于剥离和收卷包覆于压敏胶外部的离型膜。
作为本发明实施方式的进一步改进，所述贴合辊组为呈倒品式结构的三辊式压合装置，包括并列排布于同一水平面一侧的第一胶辊和第二胶辊，以及设置在所述水平面另一侧的背压辊；
压敏胶带包括分别包覆压敏胶的上下两个表面的第一离型膜和第二离型膜，对应地，所述离型膜收卷辊组包括第一离型膜收卷辊组和第二离型膜收卷辊组，分别用于剥离和收卷所述第一离型膜和第二离型膜；
所述第一离型膜收卷辊组和第二离型膜收卷辊组呈上下对称设置。
另一方面，本发明还提供了一种压敏胶贴合方法，所述贴合方法包括以下步骤：
a)剥离压敏胶的一个表面的第一离型膜、暴露出第一胶粘面，将所述第一胶粘面放置于待贴合的第一基材上，所述待贴合压敏胶的第一基材支撑于机台上；
b)将a)中机台支撑所述待贴合压敏胶的第一基材的平面移动至红外烘干装置的工作区域，所述红外烘干装置固定于所述机台上且处于与所述压敏 胶表面预设高度的位置；
c)将红外烘干装置加热至预设温度，胶辊沿着压敏胶的表面进行辊压以与基材相贴合；
d)剥离位于压敏胶另一表面的第二离型膜、暴露出第二胶粘面，将所述第二胶粘面与第二基材相互贴合。
作为本发明实施方式的进一步改进，所述红外烘干装置包括多红外波段的红外热源；
所述红外热源包括中红外波段2.5-4μm，近红外波段0.75-2μm。
作为本发明实施方式的进一步改进，所述预设温度范围为30-50℃；所述预设温度根据压敏胶和基材的附着程度调整。
作为本发明实施方式的进一步改进，在压敏胶的表面进行红外加热的时间为30-300s。
作为本发明实施方式的进一步改进，所述贴合步骤a)中采用第一离型膜收卷辊组对所述第一离型膜进行剥离和收卷；
所述贴合步骤d)中采用第二离型膜收卷辊组对所述第二离型膜进行剥离和收卷。
与现有技术相比，本发明具有以下技术效果：
1、本发明实施例采用红外加热多红外波段加热模式可以适用于不同的胶系，应用范围广；
2、本发明实施例采用的红外加热压敏胶的方式加热效率高，可加热胶面 温度RT-50℃；对于温度精准控制，确保胶面温度一致和稳定性；
3、本发明实施例中红外烘干装置的角度可调、高度由电机驱动，高度600-900mm可调；有效加热宽度300mm，宽度可以根据需求订制；
4、本发明采用的红外加热的方式相对于传统的电加热使用安全、便捷；成本低廉；
5、本发明采用的红外加热的方式降温快，且降温过程不影响设备的使用，可以继续加工其它产品，而传统加热工艺是给导辊加热，升温慢、降温更慢产品加工效率低。
此处所说明的附图用来提供对本发明的进一步理解，构成本发明的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1为本发明实施例中压敏胶贴合装置的结构示意图；
图2为本发明实施例中红外加热器工作原理示意图；
图3为本发明实施例中贴合工艺过程示意图；
图中示例表示为：
1-机体；2-红外烘干装置；21-烘干器壳体；22-红外热源；23-电源；24-保险丝；25-控制器；3-固定装置；4-胶面平台；5-贴合辊组；51-钢辊轮；52-橡胶辊轮；6-离型膜收卷辊组；61-第一离型膜收卷辊组；62-第二离型膜收卷辊组；7-成品收卷辊组；8-基材。
为使本发明的上述目的、特征和优点能够更加明显易懂，下面将结合本发明实施例中的附图，对本发明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发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动的前提下所获得的所有其它实施例，均属于本发明保护的范围。
本发明实施例提供了一种压敏胶贴合装置，如图1所示，包括：
机台1，支撑待贴合压敏胶的第一基材，机台1上设有控制单元；
红外烘干装置2，包括红外热源22；红外热源22可以设置为开放式结构，在其他可实施的方式中，红外烘干装置2还包括烘干器壳体，烘干器壳体用于保温和聚集热源热量；红外热源22设置于烘干器壳体内部，且设置于机台1的上方；在本发明实施例中，保温方式为120K硅酸铝保温棉，保温厚度60mm；红外烘干装置2的冷却方式为气冷式，安装8mm的气源接头接通导流板，采用市售气源。进一步地，如图2所示，红外烘干装置2还包括为红外装置供电的电源23、为通断电安全设置的保险丝24，温度控制的控制器25；在其他可选的实施方式中，红外烘干装置2的控制器25具体包括PCL控温单元和K型感温器，用于对红外烘干装置2的温度进行实时采集和调整。
红外热源22设置于压敏胶表面预设高度的位置，且预设高度可调，控制单元用于控制红外烘干装置2的加热和与机台1的相对运动；
在本发明实施例中，红外烘干装置2通过一个在相对垂直于机台上贴合压敏胶的支撑平面方向上延伸的悬臂固定于所述机台上，悬臂可伸缩以调节相对于支撑平面的高度，从而带动红外烘干装置2原理或靠近压敏胶表面。
具体地，红外热源22为灯管，包括中波孪管和短波孪管。
本发明实施例中，机台1还包括前端加装2只定向轮，后面安装2只万向轮，这组万向轮带刹车制动装置(未示出)。
在本发明实施例中，贴合装置还包括驱动单元(未示出)、贴合辊组5和离型膜收卷辊组6；
驱动单元分别与离型膜收卷辊组6和贴合辊组5相连接，用于为收卷离型膜以及贴合辊组5带动第一基材运动提供驱动力；
贴合辊组5，包括胶辊和背压辊，胶辊和背压辊分别设置在机台1上支撑第一基材的平面的两侧，且胶辊和背压辊设置于同一个垂直面上；胶辊用于收卷压敏胶带，背压辊用于压敏胶贴附提供压紧力；
离型膜收卷辊组6用于剥离和收卷包覆于压敏胶外部的离型膜。
在本发明实施例中，贴合辊组5为倒品式排布的三辊式压合装置，包括并列排布于同一水平面一侧的第一胶辊和第二胶辊，以及设置在该平面另一侧的背压辊；
压敏胶带包括分别包覆压敏胶的上下两个表面的第一离型膜和第二离型膜，对应地，离型膜收卷辊组6包括第一离型膜收卷辊组和第二离型膜收卷辊组，分别用于剥离和收卷所述第一离型膜和第二离型膜；
第一离型膜收卷辊组和第二离型膜收卷辊组呈上下对称设置。
因为基材如泡棉经压合后，压敏胶很难附着在泡棉上，本发明实施例公开了给压敏胶适当加热后，可以大大改善贴合的效果；如图3所示，基材通过钢辊轮51作为背压辊、橡胶辊轮52作为胶辊，胶辊在通过胶面平台4之前经第一离型膜收卷辊组61剥离第一离型膜，然后与基材8贴合并受背压辊压实后，经第二离型膜收卷辊组62剥离第二离型膜，与基材8贴合压敏胶的成品经成品收卷辊组7收卷。
另一方面，本发明实施例还提供了一种压敏胶贴合方法，贴合方法包括以下步骤：
a)剥离压敏胶的一个表面的第一离型膜、暴露出第一胶粘面，将第一胶粘面放置于待贴合的第一基材上，待贴合压敏胶的第一基材支撑于机台上；
b)将a)中机台1支撑待贴合压敏胶的第一基材的平面移动至红外烘干装置2的工作区域，红外烘干装置2固定于机台1上且处于与压敏胶表面预设高度的位置；
c)将红外烘干装置2加热至预设温度，胶辊51沿着压敏胶的表面进行辊压以与基材相贴合；
d)剥离位于压敏胶另一表面的第二离型膜、暴露出第二胶粘面，将第二胶粘面与第二基材相互贴合。
在本发明实施例中，红外烘干装置2包括多红外波段的红外热源22；具体地，红外热源22包括中红外波段2.5-4μm，近红外波段0.75-2μm。
红外加热的预设温度范围为30-50℃。
在本发明实施例中，在压敏胶的表面进行红外加热的时间为30-300s。
其中，贴合步骤a)中采用第一离型膜收卷辊组对第一离型膜进行剥离和收卷；贴合步骤d)中采用第二离型膜收卷辊组对第二离型膜进行剥离和收卷。
在本发明实施例中，胶带样品是现有产品，为进一步测试仪器加热性能，选择了五种不同规格的泡棉压敏胶，具体参数如表1所示。
表1
本发明实施例中，对于产品的贴合分层能力及剥离分层速度都进行了测试，经过杜邦测试，证实采用最大脱层速度，也并未出现胶从基材上分离的情况；此外，剥离分层速度在贴合分层试验期间也进行了测试；测试中PC上剥离附着力对应的剥离分层速度为300mm/min、PET上剥离附着力对应的剥离分层速度为300mm/min。
在本发明实施例中，红外烘干设备通过对不同波长的加热器使用功率的控制，使其对被烘干物有效进行加热。进而找出功率、波长、时间等最佳参数。
红外烘干设备的技术参数如表2所示：
表2
在本发明实施例中，机体1和红外烘干装置2的外壳可采用国家标准型材焊接组合，表面喷塑；机体的型材尺寸为60*60*1.5MM。
机体1带有控制单元，采用固态调压模块，并且在机体上有数字式液晶显示，直观、简单、准确；同时采用单独的电器箱控制，设置两块温控仪表。
红外烘干装置2采用中红外、近红外两个波段的红外热源，可独立控制的分别工作，也可一起工作；在其他可实施的方式中，还可以为红外烘干装 置设置脚踏开关，在电源开启的情况下，踩下即加热，松开即停止加热。
在本发明实施例中，还设置了一些安全防护装置，在红外烘干装置2的灯管上方加装不锈钢防护罩，防护罩彼此具有预设间隔，间隔宽度以不影响工作为宜；防护罩外部有高温警示标识；在防护罩上部安装60mm厚的隔热板，防止人为触碰灯管，隔热板与防护罩间距为100mm。根据实际情况，隔热板可拆卸，隔热板上部表面温度目标不超过50℃。
与现有技术相比，本发明具有以下技术效果：
1、本发明实施例采用红外加热多红外波段加热模式可以适用于不同的胶系，应用范围广；
2、本发明实施例采用的红外加热压敏胶的方式加热效率高，可加热胶面温度RT～50℃；对于温度精准控制，确保胶面温度一致和稳定性；
3、本发明实施例中红外烘干装置的角度可调、高度由电机驱动，高度600--900mm可调；有效加热宽度300mm，宽度可以根据需求订制；
4、本发明采用的红外加热的方式相对于传统的电加热使用安全、便捷；成本低廉；
5、本发明采用的红外加热的方式降温快，且降温过程不影响设备的使用，可以继续加工其它产品，而传统加热工艺是给导辊加热，升温慢、降温更慢产品加工效率低。
Claims (10)
- 一种压敏胶贴合装置，其特征在于，所述压敏胶贴合装置包括：机台，支撑待贴合压敏胶的第一基材，所述机台上设有控制单元；红外烘干装置，包括红外热源；所述红外热源设置于压敏胶表面预设高度的位置，且所述预设高度可调，所述控制单元用于控制所述红外烘干装置的加热和与所述机台的相对运动。
- 根据权利要求1所述的压敏胶贴合装置，其特征在于，所述红外烘干装置还包括K型感温器和PCL控温单元，用于对所述红外烘干装置的温度信息进行实时采集和调整，并将温度信息发送给所述控制单元。
- 根据权利要求1所述的压敏胶贴合装置，其特征在于，所述红外热源为灯管，包括中波孪管和短波孪管。
- 根据权利要求1所述的压敏胶贴合装置，其特征在于，所述压敏胶贴合装置还包括驱动单元、贴合辊组和离型膜收卷辊组；所述驱动单元分别与所述离型膜收卷辊组和贴合辊组相连接，用于为收卷离型膜以及贴合辊组带动所述第一基材运动提供驱动力；所述贴合辊组，包括胶辊和背压辊，所述胶辊和背压辊分别设置在所述机台上支撑第一基材的平面的两侧，且所述胶辊和所述背压辊设置于同一个垂直面上；所述胶辊用于收卷压敏胶带，所述背压辊用于压敏胶贴附提供压紧力；所述离型膜收卷辊组用于剥离和收卷包覆于压敏胶外部的离型膜。
- 根据权利要求1所述的压敏胶贴合装置，其特征在于，所述贴合辊组 为呈倒品式结构的三辊式压合装置，包括并列排布于同一水平面一侧的第一胶辊和第二胶辊，以及设置在所述水平面另一侧的背压辊；所述压敏胶带包括位于包覆压敏胶的第一离型膜和第二离型膜，所述离型膜收卷辊组包括第一离型膜收卷辊组和第二离型膜收卷辊组，分别用于剥离和收卷所述第一离型膜和第二离型膜；所述第一离型膜收卷辊组和第二离型膜收卷辊组呈上下对称设置。
- 一种压敏胶贴合方法，其特征在于，所述贴合方法包括以下步骤：a)剥离压敏胶的一个表面的第一离型膜、暴露出第一胶粘面，将所述第一胶粘面放置于待贴合的第一基材上，所述待贴合压敏胶的第一基材支撑于机台上；b)将a)中机台支撑所述待贴合压敏胶的第一基材的平面移动至红外烘干装置的工作区域，所述红外烘干装置固定于所述机台上且处于与所述压敏胶表面预设高度的位置；c)将红外烘干装置加热至预设温度，胶辊沿着压敏胶的表面进行辊压以与基材贴合；d)剥离位于压敏胶另一表面的第二离型膜、暴露出第二胶粘面，将所述第二胶粘面与第二基材相互贴合。
- 根据权利要求6所述的压敏胶贴合方法，其特征在于，所述红外烘干装置包括多红外波段的红外热源；所述红外热源包括中红外波段2.5-4μm，近红外波段0.75-2μm。
- 根据权利要求6所述的压敏胶贴合方法，其特征在于，所述预设温度范围为30-50℃；所述预设温度根据压敏胶和基材的附着程度调整。
- 根据权利要求6所述的压敏胶贴合方法，其特征在于，在压敏胶的表面进行红外加热的时间为30-300s。
- 根据权利要求6所述的压敏胶贴合方法，其特征在于，所述贴合步骤a)中采用第一离型膜收卷辊组对所述第一离型膜进行剥离和收卷；所述贴合步骤d)中采用第二离型膜收卷辊组对所述第二离型膜进行剥离和收卷。
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