CN110562797A - Pressure-sensitive adhesive laminating device and laminating method - Google Patents
Pressure-sensitive adhesive laminating device and laminating method Download PDFInfo
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- CN110562797A CN110562797A CN201910800564.6A CN201910800564A CN110562797A CN 110562797 A CN110562797 A CN 110562797A CN 201910800564 A CN201910800564 A CN 201910800564A CN 110562797 A CN110562797 A CN 110562797A
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- pressure
- sensitive adhesive
- release film
- laminating
- infrared
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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
Abstract
the invention discloses a pressure-sensitive adhesive laminating device, which comprises: the machine table supports a first base material to be attached with pressure-sensitive adhesive, and a control unit is arranged on the machine table; the infrared drying device comprises an infrared heat source; the infrared heat source is arranged at a position with a preset height on the surface of the pressure-sensitive adhesive, the preset height is adjustable, and the control unit is used for controlling the heating of the infrared drying device and the relative movement of the machine table. The invention also discloses a laminating method of the pressure-sensitive adhesive laminating device. The invention has the advantages of accurate temperature control, convenient and fast use and capability of ensuring the consistent and stable temperature of the glue surface.
Description
Technical Field
The invention relates to the technical field of industrial adhesive bonding processes, in particular to a pressure-sensitive adhesive bonding device and a bonding method.
background
The pressure-sensitive adhesive is mainly a solvent type or latex type adhesive of acrylic acid series and rubber series;
The adhesive tape is a special adhesive, i.e. the adhesive liquid is coated on a substrate, processed into a belt shape and supplied by a reel, and comprises a solvent activated adhesive tape, a heating adhesive tape and a pressure-sensitive adhesive tape. For example, the adhesive plasters and electrical insulating glues used in medicine are pressure-sensitive adhesive tapes, which are composed of: firstly, a pressure-sensitive adhesive, a base material, a bottom layer treating agent, a back surface treating agent and a piece of release paper; the main components of the pressure-sensitive adhesive include rubber type and resin type.
At present, the pressure-sensitive adhesive is applied more and more, has wider range and stricter requirements, and a new process is updated and iterated in order to improve the production efficiency and quality.
More and more new materials are used on the pressure-sensitive adhesive, products such as PP, PU, PVC, PE foaming and the like are pushed out/transferred to production, such as foam series, acrylic core foaming adhesive tapes and the like; the foam series occasionally has an anchoring failure phenomenon in a DuPont test, and an ODM foam adhesive tape has a disordered bonding phenomenon in the laminating production, so that the production efficiency is low, and the adhesive force between the adhesive and a base material is not enough, so that the degumming phenomenon is caused.
The research process in the prior art mainly comprises lamination temperature, pressure, corona dose setting and other factors, and the result shows that the lamination temperature has important influence on the wettability, so that the technical scheme of gluing in a heating state to improve the adhesive force of a base material is disclosed.
disclosure of Invention
the invention aims to provide a pressure-sensitive adhesive laminating device;
The invention also aims to provide a method for attaching the pressure-sensitive adhesive.
In one aspect, the present disclosure provides a pressure sensitive adhesive application device; the pressure-sensitive adhesive bonding device includes:
the machine table supports a first base material to be attached with pressure-sensitive adhesive, and a control unit is arranged on the machine table;
the infrared drying device comprises an infrared heat source;
The infrared heat source is arranged at a position with a preset height on the surface of the pressure-sensitive adhesive, the preset height is adjustable, and the control unit is used for controlling the heating of the infrared drying device and the relative movement of the machine table.
As a further improvement of the embodiment of the present invention, the infrared drying device further includes a K-type temperature sensor and a PCL temperature control unit, which are used for acquiring and adjusting the temperature of the infrared drying device in real time.
as a further improvement of the embodiment of the invention, the infrared heat source is a lamp tube and comprises a medium wave twin tube and a short wave twin tube.
as a further improvement of the embodiment of the invention, the pressure-sensitive adhesive laminating device further comprises 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 for providing driving force for driving the first substrate to move by winding the release film and the laminating roller group;
The laminating roller set comprises a rubber roller and a back pressure roller, the rubber roller and the back pressure roller are respectively arranged on two sides of a plane supporting the first base material on the machine table, and the rubber roller and the back pressure roller are arranged on the same vertical plane; 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 tape to provide pressing force;
the release film winding roller group is used for peeling and winding the release film coated outside the pressure-sensitive adhesive.
As a further improvement of the embodiment of the invention, the laminating roller set is a three-roller pressing device with an inverted structure, and comprises a first rubber roller and a second rubber roller which are arranged in parallel on one side of the same horizontal plane, and a back pressure roller arranged on the other side of the horizontal plane;
The pressure-sensitive adhesive tape comprises a first release film and a second release film which respectively coat the upper surface and the lower surface of the pressure-sensitive adhesive, and correspondingly, the release film winding roller set comprises a first release film winding roller set and a second release film winding roller set which are 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 in an up-and-down symmetrical mode.
on the other hand, the invention also provides a pressure-sensitive adhesive attaching method, which comprises the following steps:
a) Stripping a first release film on one surface of the pressure-sensitive adhesive, exposing a first adhesive surface, and placing the first adhesive surface on a first substrate to be attached, wherein the first substrate to be attached with the pressure-sensitive adhesive is supported on a machine table;
b) moving the plane of the machine table supporting the first base material to be laminated with the pressure-sensitive adhesive in the step a) to a working area of an infrared drying device, wherein the infrared drying device is fixed on the machine table and is positioned at a position with a preset height relative to the surface of the pressure-sensitive adhesive;
c) heating the infrared drying device to a preset temperature, and rolling the rubber roller along the surface of the pressure-sensitive adhesive to be attached to the base material;
d) and stripping the second release film positioned on the other surface of the pressure-sensitive adhesive to expose the second adhesive surface, and mutually attaching the second adhesive surface and the second substrate.
As a further improvement of the embodiment of the present invention, the infrared drying device includes an infrared heat source of multiple infrared bands:
the infrared heat source comprises a middle infrared band of 2.5-4 μm and a near infrared band of 0.75-2 μm.
as a further improvement of the embodiment of the present invention, the preset temperature range is 30 to 50 ℃; the preset temperature is adjusted according to the adhesion degree of the pressure-sensitive adhesive and the base material.
as a further improvement of the embodiment of the present invention, the time for infrared heating on the surface of the pressure-sensitive adhesive is 30 to 300 s.
as a further improvement of the embodiment of the invention, in the attaching step a), a first release film winding roll group is adopted to peel and wind the first release film;
and d) in the laminating step d), a second release film winding roller set is adopted to peel and wind the second release film.
compared with the prior art, the invention has the following technical effects:
1. the embodiment of the invention adopts the infrared heating multi-infrared wave band heating mode, can be suitable for different adhesive systems, and has wide application range;
2. The embodiment of the invention adopts a mode of externally adding the thermal pressure sensitive adhesive in red, has high heating efficiency, and can heat the adhesive surface at the temperature of RT-50 ℃; the temperature is accurately controlled, and the consistency and the stability of the temperature of the glue surface are ensured;
3. the angle of the infrared drying device in the embodiment of the invention is adjustable, the height of the infrared drying device is driven by a motor, and the height of the infrared drying device is 600-900 mm; the effective heating width is 300mm, and the width can be customized according to requirements;
4. Compared with the traditional electric heating, the infrared heating mode adopted by the invention is safe and convenient to use; the cost is low;
5. The infrared heating mode adopted by the invention has the advantages of fast cooling, no influence on the use of equipment in the cooling process, and capability of continuously processing other products, and the traditional heating process is to heat the guide roller, so that the processing efficiency of the product with slow temperature rise and slow cooling is low.
drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a pressure-sensitive adhesive application apparatus according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of the operation of an infrared heater in an embodiment of the invention;
FIG. 3 is a schematic view of a bonding process in an embodiment of the present invention;
The examples in the figures are represented as:
1-body; 2-an infrared drying device; 21-dryer housing; 22-an infrared heat source; 23-a power supply; 24-a fuse; 25-a controller; 3-a fixing device; 4-glue surface platform; 5-a laminating roller set; 51-steel rollers; 52-rubber roller; 6-a release film winding roller set; 61-a first release film winding roller set; 62-a second release film winding roller set; 7-finished product winding roller group; 8-a substrate.
Detailed Description
in order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
an embodiment of the present invention provides a pressure-sensitive adhesive bonding apparatus, as shown in fig. 1, including:
the machine table 1 supports a first base material to be laminated with the pressure-sensitive adhesive, and a control unit is arranged on the machine table 1;
The infrared drying device 2 comprises an infrared heat source 22; the infrared heat source 22 may be configured as an open structure, and in other practical manners, the infrared drying device 2 further includes a dryer housing for heat preservation and heat collection; the infrared heat source 22 is arranged inside the dryer shell and above the machine table 1; in the embodiment of the invention, the heat preservation mode is 120K aluminum silicate heat preservation cotton, and the heat preservation thickness is 60 mm; the infrared drying device 2 is cooled in an air-cooled manner, an 8mm air source connector is arranged to be communicated with a guide plate, and a commercially available air source is adopted. Further, as shown in fig. 2, the infrared drying device 2 further includes a power supply 23 for supplying power to the infrared device, a fuse 24 for safely powering on and off, and a controller 25 for controlling temperature; 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, and is configured 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, the preset height is adjustable, and the control unit is used for controlling the heating of the infrared drying device 2 and the relative movement of the infrared drying device and the machine table 1;
In the embodiment of the invention, the infrared drying device 2 is fixed on the machine table through a cantilever extending in the direction vertical to the supporting plane attached with the pressure-sensitive adhesive on the machine table, and the cantilever can extend and retract to adjust the height relative to the supporting plane, so that the infrared drying device 2 is driven to be in principle or close to the surface of the pressure-sensitive adhesive.
Specifically, the infrared heat source 22 is a lamp tube, and includes a medium wave twin tube and a short wave twin tube.
In the embodiment of the invention, the machine table 1 further comprises 2 directional wheels additionally arranged at the front end, and 2 universal wheels arranged at the rear end, wherein the set of universal wheels are provided with a brake device (not shown).
In the embodiment of the present invention, the laminating device further includes a driving unit (not shown), a laminating roller set 5 and a release film roll-up roller set 6;
The driving unit is respectively connected with the release film winding roller group 6 and the laminating roller group 5 and is used for providing driving force for driving the first substrate to move by winding the release film and the laminating roller group 5;
the laminating roller set 5 comprises a rubber roller and a back pressure roller, the rubber roller and the back pressure roller are respectively arranged on two sides of a plane supporting the first base material on the machine table 1, and the rubber roller and the back pressure roller are arranged on the same vertical plane; 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 tape to provide pressing force;
the release film winding roller group 6 is used for peeling and winding the release film coated outside the pressure-sensitive adhesive.
In the embodiment of the invention, the laminating roller set 5 is a three-roller pressing device which is arranged in a reverse manner, and comprises a first rubber roller and a second rubber roller which are arranged in parallel on one side of the same horizontal plane, and a back pressure roller arranged on the other side of the plane;
the pressure-sensitive adhesive tape comprises a first release film and a second release film which respectively coat the upper surface and the lower surface of the pressure-sensitive adhesive, and correspondingly, the release film winding roller group 6 comprises a first release film winding roller group and a second release film winding roller group which are 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 in an up-and-down symmetrical mode.
Because the pressure-sensitive adhesive is difficult to adhere to the foam after the base material such as the foam is pressed, the embodiment of the invention discloses that the laminating effect can be greatly improved after the pressure-sensitive adhesive is properly heated; as shown in fig. 3, the substrate passes through a steel roller 51 as a back pressure roller, a rubber roller 52 as a rubber roller, the rubber roller peels off a first release film through a first release film roll-up roller set 61 before passing through the adhesive surface platform 4, then the rubber roller is bonded with the substrate 8 and compacted by the back pressure roller, peels off a second release film through a second release film roll-up roller set 62, and a finished product of the pressure-sensitive adhesive bonded with the substrate 8 is rolled up through a finished product roll-up roller set 7.
on the other hand, the embodiment of the invention also provides a pressure-sensitive adhesive attaching method, which comprises the following steps:
a) stripping the first release film on one surface of the pressure-sensitive adhesive, exposing the first adhesive surface, placing the first adhesive surface on a first substrate to be attached, and supporting the first substrate to be attached with the pressure-sensitive adhesive on a machine table;
b) moving the plane of the machine table 1 supporting the first base material to be laminated with the pressure-sensitive adhesive in a) to the working area of the infrared drying device 2, wherein the infrared drying device 2 is fixed on the machine table 1 and is positioned at a position with a preset height relative to the surface of the pressure-sensitive adhesive;
c) heating the infrared drying device 2 to a preset temperature, and rolling the rubber roller 51 along the surface of the pressure-sensitive adhesive to be attached to the base material;
d) And stripping the second release film positioned on the other surface of the pressure-sensitive adhesive to expose the second adhesive surface, and mutually attaching the second adhesive surface and the second substrate.
In the embodiment of the present invention, the infrared drying device 2 includes an infrared heat source 22 of multiple infrared bands; specifically, the infrared heat source 22 includes a mid-infrared band of 2.5-4 μm and a near-infrared band of 0.75-2 μm.
The preset temperature range of infrared heating is 30-50 ℃.
in the embodiment of the invention, the infrared heating is carried out on the surface of the pressure-sensitive adhesive for 30-300 s.
wherein, the first release film is stripped and wound by a first release film winding roll group in the laminating step a); and d) stripping and winding the second release film by adopting a second release film winding roller set in the laminating step d).
in the embodiment of the invention, the adhesive tape sample is an existing product, five foam pressure-sensitive adhesives with different specifications are selected for further testing the heating performance of an instrument, and the specific parameters are shown in table 1.
TABLE 1
In the embodiment of the invention, the laminating delamination capability and the peeling delamination speed of the product are tested, and the DuPont test proves that the maximum delamination speed is adopted and the situation that glue is separated from the base material does not occur; in addition, the peel delamination rate was also tested during the lamination delamination test; in the test, the peeling and delamination speed corresponding to the peeling and adhesion force on the PC is 300mm/min, and the peeling and delamination speed corresponding to the peeling and adhesion force on the PET is 300 mm/min.
In the embodiment of the invention, the infrared drying device effectively heats the dried objects by controlling the use power of the heaters with different wavelengths. Further find out the optimum parameters of power, wavelength and time.
the technical parameters of the infrared drying device are shown in table 2:
TABLE 2
in the embodiment of the invention, the housing of the machine body 1 and the infrared drying device 2 can be welded and combined by adopting national standard section bars, and the surface is sprayed with plastic; the size of the section bar of the machine body is 60 × 1.5 MM.
the machine body 1 is provided with a control unit, adopts a solid voltage regulating module, is provided with a digital liquid crystal display, and is visual, simple and accurate; meanwhile, the control is realized by adopting an independent electric appliance box, and two temperature control instruments are arranged.
The infrared drying device 2 adopts infrared heat sources of middle infrared and near infrared bands, and can work independently and respectively or together; in other practical modes, a pedal switch can be arranged on the infrared drying device, and when the power supply is turned on, the infrared drying device is stepped on to heat, and when the power supply is turned off, the infrared drying device stops heating.
in the embodiment of the invention, some safety protection devices are also arranged, a stainless steel protective cover is additionally arranged above the lamp tube of the infrared drying device 2, the protective covers are mutually provided with preset intervals, and the width of the intervals is suitable not to influence the work; a high-temperature warning mark is arranged outside the protective cover; the upper part of the protective cover is provided with a heat insulation plate with the thickness of 60mm, so that the lamp tube is prevented from being touched manually, and the distance between the heat insulation plate and the protective cover is 100 mm. According to actual conditions, the heat insulation plate can be detached, and the temperature target of the upper surface of the heat insulation plate is not more than 50 ℃.
Compared with the prior art, the invention has the following technical effects:
1. the embodiment of the invention adopts the infrared heating multi-infrared wave band heating mode, can be suitable for different adhesive systems, and has wide application range;
2. The embodiment of the invention adopts a mode of externally adding the thermal pressure-sensitive adhesive in red, has high heating efficiency, and can heat the adhesive surface at the temperature of RT-50 ℃; the temperature is accurately controlled, and the consistency and the stability of the temperature of the glue surface are ensured;
3. The angle of the infrared drying device in the embodiment of the invention is adjustable, the height is driven by a motor, and the height is 600-900 mm; the effective heating width is 300mm, and the width can be customized according to requirements;
4. compared with the traditional electric heating, the infrared heating mode adopted by the invention is safe and convenient to use; the cost is low;
5. The infrared heating mode adopted by the invention has the advantages of fast cooling, no influence on the use of equipment in the cooling process, and capability of continuously processing other products, and the traditional heating process is to heat the guide roller, so that the processing efficiency of the product with slow temperature rise and slow cooling is low.
Claims (10)
1. The utility model provides a pressure-sensitive adhesive laminating device which characterized in that, pressure-sensitive adhesive laminating device includes:
The machine table supports a first base material to be attached with pressure-sensitive adhesive, and a control unit is arranged on the machine table;
The infrared drying device comprises an infrared heat source;
the infrared heat source is arranged at a position with a preset height on the surface of the pressure-sensitive adhesive, the preset height is adjustable, and the control unit is used for controlling the heating of the infrared drying device and the relative movement of the machine table.
2. The pressure-sensitive adhesive laminating device of claim 1, wherein the infrared drying device further comprises a K-type temperature sensor and a PCL temperature control unit, and is configured to collect and adjust temperature information of the infrared drying device in real time and send the temperature information to the control unit.
3. the pressure-sensitive adhesive application device of claim 1, wherein the infrared heat source is a lamp tube, and comprises a medium wave twin tube and a short wave twin tube.
4. the pressure-sensitive adhesive laminating device according to claim 1, further comprising 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 for providing driving force for driving the first substrate to move by winding the release film and the laminating roller group;
The laminating roller set comprises a rubber roller and a back pressure roller, the rubber roller and the back pressure roller are respectively arranged on two sides of a plane supporting the first base material on the machine table, and the rubber roller and the back pressure roller are arranged on the same vertical plane; 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 tape to provide pressing force;
the release film winding roller group is used for peeling and winding the release film coated outside the pressure-sensitive adhesive.
5. The pressure-sensitive adhesive laminating device according to claim 1, wherein the laminating roller set is a three-roller laminating device with a reverse structure, and comprises a first rubber roller and a second rubber roller which are arranged side by side on one side of a same horizontal plane, and a back pressure roller arranged on the other side of the horizontal plane;
The pressure-sensitive adhesive tape comprises a first release film and a second release film which are coated with the pressure-sensitive adhesive, and the release film winding roller set comprises a first release film winding roller set and a second release film winding roller set which are 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 in an up-and-down symmetrical mode.
6. A pressure-sensitive adhesive attaching method is characterized by comprising the following steps:
a) stripping a first release film on one surface of the pressure-sensitive adhesive, exposing a first adhesive surface, and placing the first adhesive surface on a first substrate to be attached, wherein the first substrate to be attached with the pressure-sensitive adhesive is supported on a machine table;
b) moving the plane of the machine table supporting the first base material to be laminated with the pressure-sensitive adhesive in the step a) to a working area of an infrared drying device, wherein the infrared drying device is fixed on the machine table and is positioned at a position with a preset height relative to the surface of the pressure-sensitive adhesive;
c) heating the infrared drying device to a preset temperature, and rolling the rubber roller along the surface of the pressure-sensitive adhesive to be attached to the base material;
d) and stripping the second release film positioned on the other surface of the pressure-sensitive adhesive to expose the second adhesive surface, and mutually attaching the second adhesive surface and the second substrate.
7. The method according to claim 6, wherein the infrared drying device comprises an infrared heat source with multiple infrared bands;
the infrared heat source comprises a middle infrared band of 2.5-4 μm and a near infrared band of 0.75-2 μm.
8. The pressure-sensitive adhesive laminating method of claim 6, wherein the preset temperature range is 30-50 ℃; the preset temperature is adjusted according to the adhesion degree of the pressure-sensitive adhesive and the base material.
9. the method of claim 6, wherein the infrared heating is performed for 30-300s on the surface of the pressure-sensitive adhesive.
10. the method for laminating the pressure-sensitive adhesive according to claim 6, wherein in the laminating step a), a first release film winding roll set is adopted to peel and wind the first release film;
And d) in the laminating step d), a second release film winding roller set is adopted to peel and wind the second release film.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910800564.6A CN110562797B (en) | 2019-08-30 | 2019-08-30 | Pressure-sensitive adhesive laminating device and laminating method |
| PCT/CN2019/120075 WO2021036029A1 (en) | 2019-08-30 | 2019-11-22 | Pressure-sensitive adhesive attaching device and attaching method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910800564.6A CN110562797B (en) | 2019-08-30 | 2019-08-30 | Pressure-sensitive adhesive laminating device and laminating method |
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| CN110562797A true CN110562797A (en) | 2019-12-13 |
| CN110562797B CN110562797B (en) | 2021-08-17 |
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| WO (1) | WO2021036029A1 (en) |
Cited By (1)
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| CN110901213A (en) * | 2019-12-18 | 2020-03-24 | 辛格顿(常州)新材料科技有限公司 | Pressure-sensitive adhesive laminating device and laminating method |
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| Publication number | Publication date |
|---|---|
| CN110562797B (en) | 2021-08-17 |
| WO2021036029A1 (en) | 2021-03-04 |
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