Search

CN-122006974-A - Production device of special release film for ultralow release force die-cutting OCA

CN122006974ACN 122006974 ACN122006974 ACN 122006974ACN-122006974-A

Abstract

The invention relates to the technical field of release films and discloses a production device of a release film special for an OCA (optical clear adhesive) by using an ultralow release force die cutting, which comprises a supporting table, wherein a corona case for improving the surface tension of a substrate is arranged at the upper top end of the supporting table, a coating mechanism for coating the substrate is arranged at one side of the upper top end of the supporting table, which is far away from the corona case, of the coating mechanism, a drying box for drying and solidifying the coated substrate is arranged at one side of the upper top end of the supporting table, after the release film is removed from a drying oven, the release film is sequentially contacted with a first cooling roller, a second cooling roller and a third cooling roller which are equidistantly arranged, the temperature of the three rollers is gradually reduced and gradually approaches to the room temperature, the release film is firstly subjected to primary cooling through the bottom end of the first cooling roller and then passes over the second cooling roller with air holes on the surface, the air in the roller is discharged from the air holes and directly acts on the film surface to realize reinforced cooling, and finally the bottom end of the third cooling roller with the lowest temperature is cooled to the room temperature, so that winding adhesion caused by overhigh temperature is effectively avoided.

Inventors

  • WANG SHANGDAN
  • LI JIANRONG

Assignees

  • 江阴华美光电科技有限公司

Dates

Publication Date
20260512
Application Date
20260416

Claims (10)

  1. 1. The production device of the release film special for the OCA comprises a supporting table (1) and is characterized in that a corona chassis (3) for improving the surface tension of a base material is arranged at the upper top end of the supporting table (1); A coating mechanism (2) for coating the base material is arranged at one side of the upper top end of the supporting table (1) positioned on the corona chassis (3); A drying box (4) for drying and curing the coated base material is arranged at one side, far away from the corona machine box (3), of the coating mechanism (2) at the upper top end of the supporting table (1); A cooling mechanism (5) for cooling and shaping the release film is arranged at one side of the upper top end of the supporting table (1) away from the coating mechanism (2) of the drying box (4); The cooling mechanism (5) comprises a first cooling roller (51), a second cooling roller (52) and a third cooling roller (53) which are equidistantly arranged at the upper top end of the supporting table (1), the distance between the first cooling roller (51), the second cooling roller (52) and the third cooling roller (53) is one to one point and five meters, a bidirectional cam (544) for driving the first cooling roller (51) to move in an arc shape is arranged at the upper top end of the supporting table (1), and a plurality of air holes (522) which are convenient for air circulation are formed in the outer wall curved surface of the second cooling roller (52) at equal intervals.
  2. 2. The production device of the special release film for the ultralow release force die-cutting OCA is characterized in that an unreeling support (6) is arranged at the end part of the supporting table (1), an unreeling roller (7) is rotatably sleeved at the end part of the inner side wall of the unreeling support (6), and a base cloth is wound and connected on the outer wall of the unreeling roller (7).
  3. 3. The production device of the special release film for the ultralow release force die-cutting OCA is characterized in that a pressing mechanism (8) for pressing a base material is arranged at the end part of the supporting table (1), the pressing mechanism (8) comprises two L-shaped brackets (81) symmetrically and fixedly connected to the upper top end of a corona chassis (3), electric push rods (82) are fixedly connected to the lower bottom ends of the two L-shaped brackets (81), and U-shaped brackets (83) are fixedly connected to the telescopic ends of the two electric push rods (82) together.
  4. 4. The production device of the special release film for the ultra-low release force die-cutting OCA, which is disclosed in claim 3, is characterized in that a first compression roller (84) is rotatably sleeved in the U-shaped bracket (83); The end part of the supporting table (1) is symmetrically and fixedly connected with two fixing supports (85), the two fixing supports (85) are internally and rotatably sleeved with a second press roller (86), the second press roller (86) is located below the first press roller (84), and the base material is located between the first press roller (84) and the second press roller (86).
  5. 5. The production device of the special release film for the ultra-low release force die-cutting OCA, which is disclosed in claim 1, is characterized in that the cooling mechanism (5) further comprises an air box (54) fixedly connected to the outer side wall of the drying box (4), and an impeller (542) is sleeved in the air box (54) through bearing rotation; the drying box is characterized in that a bearing frame (543) is fixedly connected to the outer side wall of the drying box (4), a driving shaft is rotatably sleeved in the bearing frame (543) through a bearing, one end, away from the bearing frame (543), of the driving shaft is fixedly connected with the circle center of the impeller (542), and the bidirectional cam (544) is fixedly sleeved on the outer wall of the driving shaft.
  6. 6. The production device of the special release film for the ultralow release force die-cutting OCA is characterized in that two bases (513) are symmetrically and fixedly connected to the upper top end of the supporting table (1), two supporting sleeve rods (514) are symmetrically and fixedly connected to the upper top end of each base (513), connecting frames (515) are fixedly connected to the end parts of the two supporting sleeve rods (514) together, and two ends of the first cooling roller (51) are rotatably sleeved with the inner parts of the two connecting frames (515) through bearings.
  7. 7. The production device of the special release film for the ultralow release force die-cutting OCA is characterized in that a plurality of equidistant outer grooves (516) are symmetrically formed in the outer wall of the first cooling roller (51), a fixed rod (517) is fixedly connected to the inside of each outer groove (516), a clapping plate (518) for clapping a base material is rotatably sleeved on the outer wall of the fixed rod (517), torsion springs (519) for facilitating reset of the clapping plate (518) are symmetrically and fixedly sleeved on the outer wall of the fixed rod (517), and one end, far away from the fixed rod (517), of each torsion spring (519) is fixedly connected with two sides of the outer wall of the clapping plate (518).
  8. 8. The production device of the special release film for the ultralow release force die-cutting OCA is characterized in that two stand seats (521) are symmetrically and fixedly connected to the upper top end of the supporting table (1), the second cooling roller (52) is fixedly sleeved at the end parts of the two stand seats (521), three discharging needles (523) are fixedly connected to the inside of the second cooling roller (52) at equal intervals, air flow entering the inside of the second cooling roller (52) rubs with the tips of the discharging needles (523) and ionizes air to generate a large number of positive and negative ions, a guide roller (524) is rotatably sleeved at the center of the upper top end of the second cooling roller (52) through a positioning bracket, two stand seats (521) are symmetrically and fixedly connected to one side of the upper top end of the supporting table (1) which is located on the second cooling roller (52), two anti-falling plates (531) which are convenient to limit a base cloth are symmetrically and fixedly sleeved on the outer wall of the third cooling roller (53).
  9. 9. The production device of the special release film for the ultralow release force die-cutting OCA is characterized in that support frames (512) with different numbers are fixedly connected to two sides of the outer wall of the support table (1), an electric heater (511) is fixedly connected to the upper top end of one support frame (512), a first negative pressure fan (57) and a second negative pressure fan (58) are respectively and fixedly connected to the upper top ends of the other two support frames (512), a gas collecting cover (59) is fixedly connected to the exhaust end and the air extraction end of the second negative pressure fan (58), the heating end of the second negative pressure fan (511) extends to the inside of the first cooling roller (51), a corrugated pipe and a third air pipe (571) are respectively and fixedly connected to the two ends of the gas collecting cover (59) fixedly connected with the first negative pressure fan (57), and the corrugated pipe is communicated with the inside of the first cooling roller (51).
  10. 10. The production device of the special release film for the ultralow-release-force die-cutting OCA is characterized in that one end, far away from a first negative-pressure fan (57), of a third air pipe (571) is communicated with the interior of a second cooling roller (52), one end, far away from the third air pipe (571), of the second cooling roller (52) is fixedly connected with a first air pipe (525), one end, far away from the second cooling roller (52), of the first air pipe (525) is communicated with the interior of a gas collecting cover (59) of the outer wall of a second negative-pressure fan (58), one end, far away from the first negative-pressure fan (58), of the gas collecting cover (59) is communicated with the interior of the third cooling roller (53) through an air pipe, one end, far away from the gas collecting cover (59), of the third cooling roller (53) is fixedly connected with a second air pipe (55), the air inlet end of the air box (54) is fixedly connected with a pulse valve (541), the other end of the second air pipe (55) is communicated with the air inlet end of the pulse valve (541), and the electromagnetic valve (56) for controlling movement of the second air is installed on the outer wall (56).

Description

Production device of special release film for ultralow release force die-cutting OCA Technical Field The invention relates to the technical field of release films, in particular to a production device of a release film special for an ultralow release force die-cutting OCA. Background The release film is used as a functional film with low surface energy and easy stripping property, is widely applied to the fields of adhesive products, optical materials and die cutting processing, and has extremely high requirements on release force stability, film surface flatness and cleanliness of the release film especially in the matched use of OCA optical cement. In the prior art, the release film after drying will directly remove from the inside of stoving case, can adopt natural cooling or fan direct blowing's mode to cool down it afterwards, and film face temperature quenching shock heat easily produces the internal stress, lead to the finished product to warp, shrink, influence follow-up cross cutting dimensional accuracy, and natural cooling's mode easily leads to film face waste heat to have not reached the room temperature and gets into the rolling process promptly, very easily appear the interlayer adhesion, from the problem such as type force drift, consequently, the technical field personnel provide a special release film's of ultra-low release force cross cutting OCA apparatus for producing in order to solve the problem that sets forth in the above-mentioned background art. Disclosure of Invention The invention aims to provide a production device of a special release film for ultra-low release force die cutting OCA, which solves the problems in the prior art. The invention provides a production device of a special release film for ultra-low release force die cutting OCA, which comprises a supporting table, wherein a corona chassis for improving the surface tension of a substrate is arranged at the upper top end of the supporting table; a coating mechanism for coating the base material is arranged at one side of the upper top end of the supporting table, which is positioned on the corona chassis; A drying box for drying and curing the coated base material is arranged at one side, far away from the corona machine box, of the coating mechanism, at the upper top end of the supporting table; a cooling mechanism for cooling and shaping the release film is arranged at one side of the upper top end of the supporting table, which is far away from the coating mechanism, of the drying box; The cooling mechanism comprises first cooling rollers, second cooling rollers and third cooling rollers which are equidistantly arranged at the top end of the supporting table, the distance between the first cooling rollers, the second cooling rollers and the third cooling rollers is between one meter and one point and five meters, a bidirectional cam which drives the first cooling rollers to do arc-shaped movement is arranged above the first cooling rollers at the upper top end of the supporting table, and a plurality of air holes which are convenient for air circulation are formed in the outer wall curved surface equidistantly of the second cooling rollers. Preferably, the end part of the supporting table is provided with an unreeling support, the end part of the inner side wall of the unreeling support is rotatably sleeved with an unreeling roller, and the outer wall of the unreeling roller is connected with base cloth in a winding way. Preferably, the end part of the supporting table is provided with a pressing mechanism for pressing the base material, the pressing mechanism comprises two L-shaped brackets symmetrically and fixedly connected to the upper top end of the corona chassis, the lower bottom ends of the two L-shaped brackets are fixedly connected with electric push rods, and the telescopic ends of the two electric push rods are fixedly connected with U-shaped brackets together. Preferably, the U-shaped support is internally and rotatably sleeved with a first press roller, the end parts of the support tables are symmetrically and fixedly connected with two fixing supports, the interiors of the two fixing supports are rotatably sleeved with a second press roller, the second press roller is positioned below the first press roller, and the base material is positioned between the first press roller and the second press roller. Preferably, the cooling mechanism further comprises an air box fixedly connected to the outer side wall of the drying box, the impeller is sleeved in the air box through a bearing in a rotating mode, a bearing frame is fixedly connected to the outer side wall of the drying box, a driving shaft is sleeved in the bearing frame through a bearing in a rotating mode, one end, away from the bearing frame, of the driving shaft is fixedly connected with the circle center of the impeller, and the bidirectional cam is fixedly sleeved on the outer wall of the driving shaft. Preferably, the upper top end of the sup