An online trimming device and coating machine for optical film after lamination

Abstract

The utility model relates to an online trimming device and a coating machine for optical films after compounding. It includes a frame, a knife shaft, a first motor arranged on the frame and connected to the knife shaft in a transmission manner, a first slide rail, two sets of cutting modules installed on the first slide rail, a second slide rail, and two sets of waste collection mechanisms installed on the second slide rail; the cutting module includes a first base, an action component fixed on the first base, and an upper knife, and the action component can drive the upper knife to abut against the circumferential outer wall of the knife shaft; the waste collection mechanism includes a second base matched with the second slide rail, a second motor fixed on the second base, a rotating shaft driven to rotate by the second motor, and a winding disk sleeved on the rotating shaft, and the rotating shaft is horizontally arranged. The utility model is installed on an existing coating machine, and can perform online trimming processing on the optical film after compound coating to avoid defects in the optical film product when winding. At the same time, the position of the trimming of the utility model can be easily adjusted, and it has good versatility.

Description

Technical Field

[0001] The utility model relates to a trimming device, in particular to an online trimming device and a coating machine after optical film compounding. Background Art

[0002] Flexible OLED optical film coating machine, also known as high-precision optical film coating machine, is used for optical film glue coating, that is, coating a layer of glue, pigment or ink with specific functions on the optical film substrate, and then drying it. The optical film substrate is generally in roll form, so the optical film coating machine can continuously coat the optical film substrate. The composite optical film that has been dried after coating also needs to be rolled up again for subsequent transportation and storage.

[0003] However, after the optical film substrate is coated, some uncoated blank areas will be formed on both sides of the optical film substrate. Since there is no coating layer in the blank area, the thickness of this area is slightly thin. If such an optical film substrate is directly wound, the blank area will easily produce defects such as delamination and bubbles, resulting in uneven winding. At the same time, the fat edge problem of the coating edge will cause wavy warping on both sides of the product. Summary of the invention

[0004] The utility model provides an online trimming device and a coating machine for optical films after compounding, which solve the problem in the prior art that various product defects occur after winding due to blank areas on the edges of coated optical film substrates.

[0005] The above-mentioned technical problems of the utility model are mainly solved by the following technical solutions: an online trimming device for optical film after compounding, characterized in that it includes a frame, a knife shaft horizontally rotatably arranged on the frame, a first motor arranged on the frame and transmission-connected to the knife shaft, a first slide rail horizontally fixed on the frame, two sets of cutting modules installed on the first slide rail, a second slide rail horizontally fixed on the frame and two sets of waste collection mechanisms installed on the second slide rail; the cutting module includes a first base matched with the first slide rail, an action component fixed on the first base and an upper knife, the action component can drive the upper knife to abut against the circumferential outer wall of the knife shaft; the waste collection mechanism includes a second base matched with the second slide rail, a second motor fixed on the second base, a rotating shaft driven to rotate by the second motor and a winding disk sleeved on the rotating shaft, and the rotating shaft is horizontally arranged.

[0006] The utility model is installed at the unloading end of the existing optical film coating machine. After coating and drying, the composite optical film first passes through the knife shaft, which is driven by the first motor to rotate at a constant speed. The linear speed of its rotation is consistent with the output speed of the composite optical film. The upper knives on the two sets of cutting modules are against the knife shaft under the control of the action component, and can cut the two sides of the composite optical film. The cut composite optical film flows to the winding roller on the optical film coating machine, and the cut waste edges are wound on the winding disk. The second motor is used to drive the winding disk to rotate. The cutting position of the upper knife can be adjusted by adjusting the relative position of the first base on the first slide rail, and the winding position of the waste collection mechanism can be adjusted by adjusting the relative position of the second base on the second slide rail. Therefore, the utility model can be adapted to a variety of optical film products of different specifications.

[0007] Furthermore, the rotating shaft is a hand-expanding shaft, including an inflatable shaft body and an adjusting hand wheel screwed to the end. The hand-expanding shaft can adjust the outer diameter of the inflatable shaft body by rotating the adjusting hand wheel, so as to facilitate tightening or loosening the winding reel mounted thereon, thereby realizing rapid replacement of the winding reel and reducing the time for replacing the winding reel.

[0008] Furthermore, the knife shaft includes a shaft body, two lower knives sleeved at both ends of the shaft body, a plurality of sleeves sleeved at both ends of the shaft body, two spacer sleeves sleeved at both ends of the shaft body, and a fastening nut sleeved at both ends of the shaft body. The lower knife body is a sleeve structure, which is provided with an annular cutting groove facing the upper knife. After tightening the fastening nut, the pre-tightening force applied by the fastening nut to the spacer sleeve can be transmitted to the sleeve and the lower knife, so that the position of the lower knife is fixed. At the same time, the lengths of the multiple sleeves are different. By rearranging the positions of the lower knife and the sleeve, the fixed position of the lower knife can be easily changed to match optical film products of different specifications.

[0009] The utility model also provides a coating machine, including a coating machine body and a trimming device, characterized in that the trimming device is the above-mentioned online trimming device after optical film composite. Since the above-mentioned online trimming device after optical film composite has the above-mentioned technical effect, the coating machine with the trimming device also has the same technical effect.

[0010] Therefore, compared with the prior art, the utility model has the following characteristics: 1. The utility model is installed on the existing coating machine, and can perform online trimming processing on the optical film after composite coating to avoid defects in the optical film product during winding. At the same time, the position of the trimming of the utility model can be conveniently adjusted, and it has good versatility; 2. The hand-expanding shaft can adjust the outer diameter of the inflatable shaft body by rotating the adjusting hand wheel, which is convenient for tightening or loosening the winding reel mounted thereon, thereby realizing rapid replacement of the winding reel and reducing the time for replacing the winding reel. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attached Figure 1It is a structural schematic diagram of the utility model;

[0012] Attached Figure 2 is a schematic diagram of the structure of the waste collection mechanism;

[0013] Attached Figure 3 It is a lateral structural schematic diagram of the utility model;

[0014] Attached Figure 4 Yes Figure 3 A magnified view of part A;

[0015] Attached Figure 5 It is a partial schematic diagram of the knife axis. DETAILED DESCRIPTION

[0016] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0018] Example 1: See Figure 1 and Figure 3 , an online trimming device for optical film after lamination, comprising a frame 100, a knife shaft 200 horizontally rotatably arranged on the frame, a first motor 110 arranged on the frame and connected to the knife shaft in a transmission manner, a first slide rail 200 horizontally fixed on the frame, two sets of cutting modules 300 installed on the first slide rail, a second slide rail 400 horizontally fixed on the frame and two sets of waste collection mechanisms 500 installed on the second slide rail, the first motor and the knife shaft are connected in a transmission manner through a coupling 111; the cutting module comprises a first base 310 matched with the first slide rail, an action component 320 fixed on the first base and an upper knife 330 (see Figure 4 ); the waste collection mechanism includes a second base 510 matched with the second slide rail, a second motor 520 fixed to the second base, a rotating shaft 530 driven to rotate by the second motor, and a winding disk 540 sleeved on the rotating shaft (see Figure 2), the rotating shaft is arranged horizontally; the first slide rail is a trapezoidal slide rail, and the first base is provided with a dovetail groove 311 matching the shape of the first slide rail, and the first base is also provided with a locking bolt 312, and the first slide rail and the first base are locked or unlocked by reversing the locking bolt; both ends of the first slide rail are also provided with mounting plates 210, and the mounting plates are provided with two waist-shaped holes 211, and are fixedly connected to the frame by bolts, and the direction of the first slide rail can be fine-tuned by adjusting the relative position of the bolts and the waist-shaped holes, and then the cutting angle between the upper knife and the knife shaft can be fine-tuned, so as to find the best cutting angle and ensure a smooth cutting surface.

[0019] See Figure 1 and Figure 3 This embodiment also includes a first guide shaft 600 and a second guide shaft 700 horizontally rotatably connected to the frame, and two guide wheels 710 are sleeved on the second guide shaft.

[0020] This embodiment is installed at the unloading end of the existing optical film coating machine. The composite optical film after coating and drying first passes through the knife shaft, which is driven by the first motor to rotate at a constant speed. The linear speed of its rotation is consistent with the output speed of the composite optical film. The upper knives on the two sets of cutting modules are against the knife shaft under the control of the action component, and can cut the two sides of the composite optical film. The cut composite optical film bypasses the first guide shaft and is wound up by the winding roller on the optical film coating machine, and the cut waste edge bypasses the guide wheel on the second guide shaft and is wound on the winding disk. The second motor is used to drive the winding disk to rotate. The cutting position of the upper knife can be adjusted by adjusting the relative position of the first base on the first slide rail, and the winding position of the waste collection mechanism can be adjusted by adjusting the relative position of the second base on the second slide rail. Therefore, this embodiment can adapt to a variety of optical film products of different specifications.

[0021] See Figure 2 The rotating shaft is a hand-inflated shaft, including an inflatable shaft body 531 and an adjusting hand wheel 532 screwed to the end. The hand-inflated shaft can adjust the outer diameter of the inflatable shaft body by rotating the adjusting hand wheel, so as to tighten or loosen the winding reel mounted thereon, thereby realizing quick replacement of the winding reel and reducing the time for replacing the winding reel.

[0022] The second motor is a magnetic powder motor, which is convenient for realizing magnetic powder tension control, so that the winding speed of the winding reel always matches the feeding speed of the product.

[0023] See Figure 5The knife shaft includes a shaft body 210, two lower knives 220 sleeved on both ends of the shaft body, a plurality of sleeves 230 sleeved on both ends of the shaft body, two spacers 240 sleeved on both ends of the shaft body and a fastening nut 250 sleeved on both ends of the shaft body. The lower knife body is a sleeve structure, which is provided with an annular cutting groove 221 facing the upper knife. After tightening the fastening nut, the pre-tightening force applied by the fastening nut to the spacer can be transmitted to the sleeve and the lower knife, so that the position of the lower knife is fixed. At the same time, the lengths of multiple sleeves are different. By rearranging the positions of the lower knife and the sleeve, the fixed position of the lower knife can be easily changed to match optical film products of different specifications.

[0024] See Figure 4 The action component is a double-rod cylinder, the upper knife is a shear-type pneumatic circular knife, and a knife seat 321 for installing the upper knife is fixed on the telescopic rod of the double-rod cylinder. A limit fine-tuning bolt 322 is also provided at the tail of the double-rod cylinder, which can fine-tune the telescopic length of the knife seat, thereby controlling the cutting depth of the upper knife in the annular cutting groove.

[0025] This embodiment also discloses a coating machine, including a coating machine body and a trimming device, wherein the trimming device is the above-mentioned online trimming device after optical film composite. Since the above-mentioned online trimming device after optical film composite has the above-mentioned technical effect, the coating machine having the trimming device also has the same technical effect.

[0026] It is obvious to those skilled in the art that the utility model can be changed in many ways, and such changes are not considered to be out of the scope of the utility model. All such modifications obvious to those skilled in the art will be included in the scope of the claims.

Claims

1. An online trimming device for optical films after lamination, characterized in that: The machine comprises a frame, a knife shaft horizontally rotatably arranged on the frame, a first motor arranged on the frame and drivingly connected to the knife shaft, a first slide rail horizontally fixed on the frame, two sets of cutting modules installed on the first slide rail, a second slide rail horizontally fixed on the frame and two sets of waste collecting mechanisms installed on the second slide rail; the cutting module comprises a first base matched with the first slide rail, an action component fixed on the first base and an upper knife, the action component can drive the upper knife to abut against the circumferential outer wall of the knife shaft; the waste collecting mechanism comprises a second base matched with the second slide rail, a second motor fixed on the second base, a rotating shaft driven to rotate by the second motor and a winding disk sleeved on the rotating shaft, and the rotating shaft is horizontally arranged.

2. The device for online trimming of optical films after lamination according to claim 1, characterized in that: The machine also includes a first guide shaft and a second guide shaft which are horizontally rotatably connected to the frame, and two guide wheels are sleeved on the second guide shaft.

3. The device for online trimming of optical films after lamination according to claim 2, characterized in that: The rotating shaft is a hand-expanding shaft, comprising an inflatable shaft body and an adjusting hand wheel screwed to the end.

4. The device for online trimming of optical films after lamination according to claim 3, characterized in that: The second motor is a magnetic powder motor.

5. The device for online trimming of optical films after lamination according to claim 1, characterized in that: The knife shaft includes a shaft body, two lower knives sleeved on both ends of the shaft body, a plurality of shaft sleeves sleeved on both ends of the shaft body, two spacer sleeves sleeved on both ends of the shaft body and fastening nuts sleeved on both ends of the shaft body. The main body of the lower knife is a shaft sleeve structure, which is provided with an annular cutting groove facing the upper knife.

6. The device for online trimming of optical films after lamination according to claim 5, characterized in that: The action component is a double-rod cylinder, the upper knife is a shearing-type pneumatic circular knife, and a knife seat for mounting the upper knife is fixed on the telescopic rod of the double-rod cylinder.

7. A coating machine, comprising a coating machine body and a trimming device, characterized in that: The trimming device is an online trimming device after the optical film is composited as described in any one of claims 1 to 6.

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