Optical film cutting device

Abstract

The present invention provides an optical film cutting device, comprising: a conveying mechanism; at least one cutting mechanism; at least one cushion film supply mechanism; a support platform mechanism; the conveying mechanism is used to convey the optical film to move through the support platform mechanism; the cushion film supply mechanism is used to supply the cushion film through the support platform mechanism, and the cushion film and the optical film are sequentially stacked on the support platform mechanism; the cutting mechanism can be adjusted to approach or move away from the support platform mechanism to cut the moving optical film at the position of the support platform mechanism corresponding to the cushion film. The application of this technical solution can achieve half cutting or full cutting of the optical film.

Description

Technical Field

[0001] The invention relates to an optical film cutting device. Background Art

[0002] With the vigorous development of the optoelectronic industry, the division of labor and cooperation in the industry has gradually become more detailed. The LCD screen is composed of a glass panel, liquid crystal material, light guide plate, reflector, polarizer, filter and optical film. In the production process of optical films, a relatively wide roll is usually first coated. After the coating is completed, the optical film needs to be cut and stripped. The existing optical film slitting device includes a conveying mechanism, an upper slitting knife and a lower slitting knife. The conveying mechanism conveys the optical film through the upper slitting knife and the lower slitting knife. The upper slitting knife and the lower slitting knife form a structure similar to "scissors". Therefore, the existing optical film slitting device can only completely cut the optical film. When encountering materials such as COP and CPI, it will cause quality problems such as cracks and ridges on the cutting edge of the material, which will cause the subsequent process to be unable to proceed. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and provide an optical film cutting device.

[0004] In order to solve the above technical problems, the present invention provides an optical film cutting device, comprising:

[0005] Conveying mechanism;

[0006] at least one cutting mechanism;

[0007] at least one cushion film supply mechanism;

[0008] The supporting structure;

[0009] The conveying mechanism is used to convey the optical film to move through the supporting platform mechanism; the cushion film supplying mechanism is used to supply the cushion film through the supporting platform mechanism, and the cushion film and the optical film are sequentially stacked on the supporting platform mechanism; the cutting mechanism can be adjusted to approach or move away from the supporting platform mechanism to cut the moving optical film at the position of the supporting platform mechanism corresponding to the cushion film arranged.

[0010] In a more preferred embodiment, the cushion film supply mechanism and the conveying mechanism are configured to move the cushion film and the optical film synchronously.

[0011] In a more preferred embodiment, the support mechanism includes a support surface, and the cushion film and the optical film are sequentially stacked on the support surface; the support mechanism, the cushion film supply mechanism and the conveying mechanism are configured to enable the cushion film, the optical film and the support surface to move synchronously.

[0012] In a more preferred embodiment, the support structure is a roller, and the outer peripheral wall of the roller defines the support surface.

[0013] In a more preferred embodiment, it includes a plurality of cutting mechanisms and a plurality of cushion film supply mechanisms; the plurality of cutting mechanisms are arranged corresponding to the plurality of cushion film supply mechanisms respectively.

[0014] In a more preferred embodiment, it further includes a first guide frame and a second guide frame; the cutting mechanism is adjustably movably arranged on the first guide frame, and the cushion film supply mechanism is adjustably movably arranged on the second guide frame.

[0015] In a more preferred embodiment, the cushion film supply mechanism includes a supply roll, a receiving roll and a guiding mechanism; the supply roll and the receiving roll are respectively connected to the two ends of the cushion film and are used to drive the cushion film to pass through the supporting platform mechanism; the guiding mechanism is used to guide the cushion film so that it is transported on the supply roll, the supporting platform mechanism and the receiving roll in sequence.

[0016] In a more preferred embodiment, the cushion film supply mechanism includes a supply roll, a receiving roll and a guide mechanism; the supply roll and the receiving roll are respectively connected to the two ends of the cushion film and are used to drive the cushion film to pass through the supporting platform mechanism; the guiding mechanism is used to guide the cushion film so that it is transported on the supply roll, the supporting platform mechanism and the receiving roll in sequence; the second guide frame includes a supply roller, a receiving roller and a guide rod, the supply roll is adjustably movably arranged on the supply roller, the receiving roll is adjustably movably arranged on the receiving roller, and the guiding mechanism is adjustably movably arranged on the guide rod.

[0017] In a more preferred embodiment, the guide mechanism includes a guide frame and a plurality of first guide wheels and a plurality of second guide wheels arranged on the guide frame; the first guide wheels are arranged in sequence to connect the pad film to the supply roll and the supporting platform mechanism, and the second guide wheels are arranged in sequence to connect the pad film to the supporting platform mechanism and the receiving roll.

[0018] In a more preferred embodiment, the cutting mechanism includes a blade and a driving mechanism, and the driving mechanism can adjustably control the blade to approach or move away from the platform mechanism, and the blade is used to cut the optical film.

[0019] Compared with the prior art, the technical solution of the present invention has at least one of the following beneficial effects:

[0020] 1. The optical film cutting device comprises: a conveying mechanism; at least one cutting mechanism; at least one cushion film supply mechanism; a support platform mechanism; the conveying mechanism is used to convey the optical film to move through the support platform mechanism; the cushion film supply mechanism is used to supply the cushion film through the support platform mechanism, and the cushion film and the optical film are sequentially stacked on the support platform mechanism; the cutting mechanism can adjustably approach or move away from the support platform mechanism to cut the moving optical film at the position where the cushion film is arranged on the support platform mechanism. The optical film is driven by the conveying mechanism to pass through the support platform mechanism, and the cushion film is cushioned between the optical film and the support platform mechanism. The cutting mechanism approaches the support platform mechanism to cut the moving optical film. The cutting mechanism can adjust the distance from the support platform mechanism to achieve full cutting, half cutting (i.e., incomplete cutting of the optical film) and other operations of the optical film sheet, and the cushion film can prevent the cutting mechanism from hard collision with the support platform mechanism to damage the tool. The optical film and the cushion film are located between the support platform mechanism and the cutting mechanism (both the support platform mechanism and the cutting mechanism are made of hard materials) to achieve a larger cutting force.

[0021] 2. The cushion film supply mechanism and the conveying mechanism are configured to enable the cushion film and the optical film to move synchronously, thereby preventing friction between the cushion film and the optical film from damaging the surface of the optical film.

[0022] 3. The supporting mechanism includes a supporting surface, and the cushion film and the optical film are stacked on the supporting surface in sequence; the supporting mechanism, the cushion film supply mechanism and the conveying mechanism are configured to enable the cushion film, the optical film and the supporting surface to move synchronously, thereby preventing relative movement between the three and damaging the optical film. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional schematic diagram of an optical film cutting device in a preferred embodiment of the present invention;

[0024] Figure 2 for Figure 1 A partial enlarged view of

[0025] Figure 3 A cross-sectional schematic diagram of an optical film cutting device in a preferred embodiment of the present invention;

[0026] Figure 4 for Figure 3 A partial enlarged view of . DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Certain directional terms used to describe the drawings below, such as "inside", "outside", "above", "below" and other directional terms, will be understood to have their normal meanings and refer to those directions involved when the drawings are normally viewed. Unless otherwise specified, the directional terms described in this specification are basically in accordance with the conventional directions understood by those skilled in the art.

[0029] The terms "first", "first", "second", "second" and the like used in the present invention do not indicate any order, quantity or importance, but are used to distinguish one component from other components.

[0030] See also Figure 1-Figure 4 , an optical film cutting device, the optical film cutting device comprises a conveying mechanism 1, a support mechanism 2, at least one cutting mechanism 3 and at least one cushion film supply mechanism 4. The optical film cutting device also comprises a frame 5, and the conveying mechanism 1, the support mechanism 2, the cutting mechanism 3 and the cushion film supply mechanism 4 are all installed on the frame 5. The conveying mechanism 1 is composed of a plurality of conveying rollers, and the conveying rollers can convey the optical film 30 to move through the support mechanism 2.

[0031] Referring to the figure, the conveying mechanism 1 includes a first conveying roller 11 and a second conveying roller 12 located on both sides of the supporting mechanism 2 along the conveying path of the optical film 30. The optical film 30 is driven by the first conveying roller 11 and the second conveying roller 12 to move through the supporting mechanism 2. The cushion film supply mechanism 4 is used to supply the cushion film 20 through the supporting mechanism 2. Specifically, the cushion film 20 and the optical film 30 are stacked on the supporting mechanism 2 in sequence. The cutting mechanism 3 can be adjusted to approach or move away from the supporting mechanism 2 to cut the moving optical film 30 at the position of the supporting mechanism 2 corresponding to the cushion film 20. The optical film 30 is driven by the conveying mechanism 1 and passes through the support mechanism 2. The cushion film 20 is cushioned between the optical film 30 and the support mechanism 2. The cutting mechanism 3 is close to the support mechanism 2 to cut the moving optical film 30. The cutting mechanism 3 can adjust the distance from the support mechanism 2 to achieve full cutting, half cutting (i.e., incomplete cutting of the optical film 30), and other operations. The cushion film 20 can prevent the cutting mechanism 3 from having a hard collision with the support mechanism 2 and damaging the tool. The optical film 30 and the cushion film 20 are located between the support mechanism 2 and the cutting mechanism 3 (the support mechanism 2 and the cutting mechanism 3 are both made of hard materials), achieving a larger cutting force.

[0032] In this embodiment, the cushion film supply mechanism 4 and the conveying mechanism 1 are configured to make the cushion film 20 and the optical film 30 move synchronously. The synchronous movement of the cushion film 20 and the optical film 30 can prevent friction between the cushion film 20 and the optical film 30 and damage to the surface of the optical film 30. More specifically, the support mechanism 2 includes a support surface 21, and the cushion film 20 and the optical film 30 are sequentially stacked on the support surface 21; the support mechanism 2, the cushion film supply mechanism 4 and the conveying mechanism 1 are configured to make the cushion film 20, the optical film 30 and the support surface 21 move synchronously. The synchronous movement of the cushion film 20, the optical film 30 and the support surface 21 can prevent relative movement between the three and damage to the optical film 30. In this embodiment, the support mechanism 2 is a roller, and the outer peripheral wall of the roller defines the support surface 21.

[0033] The optical film cutting device includes a plurality of cutting mechanisms 3 and a plurality of cushion film supply mechanisms 4; the plurality of cutting mechanisms 3 are respectively arranged corresponding to the plurality of cushion film supply mechanisms 4. The width of the cushion film 20 can be made smaller as long as it can correspond to the cutting position of the cutting mechanism 3. In this embodiment, each cutting mechanism 3 is correspondingly arranged with a cushion film supply mechanism 4. The operator can arrange the cutting mechanism 3 according to the actual production requirements.

[0034] The optical film cutting device also includes a first guide frame 6 and a second guide frame 7; the cutting mechanism 3 is adjustably movably arranged on the first guide frame 6, and the cushion film supply mechanism 4 is adjustably movably arranged on the second guide frame 7. The cutting mechanism 3 can be moved on the first guide frame 6 and fixed to correspondingly cut out optical films 30 of different widths according to actual production needs. The connection between the first guide frame 6 and the cutting mechanism 3 can be a common mechanical mechanism. For example, the first guide frame 6 includes a conventional round tube 61, and the cutting mechanism 3 includes a through hole 32 for the round tube 61 to pass through. The cutting mechanism 3 also includes an adjusting wrench 31. The adjusting wrench 31 can be controlled by an operator to extend from the peripheral wall of the through hole 32 and abut against the round tube 61 to achieve the fixation of the cutting mechanism 3. When adjustment is required, it is only necessary to loosen the adjusting wrench 31 to achieve the movement of the cutting mechanism 3 on the first guide frame 6. Furthermore, the first guide frame 6 may also include a first guide frame 62, and the cutting mechanism 3 is slidable on the first guide frame 62 by means of protrusions and recesses, and the circular tube 61 and the first guide frame 62 are both extended and arranged along the width direction of the optical film 30, and the first guide frame 62 also includes a scale to facilitate positioning by the operator. The second guide frame 7 can realize the correspondence between the cushion film supply mechanism 4 and the cutting mechanism 3, and realize real-time adjustment. In some simple replacements, the first guide frame 6 may include a circular tube 61 and a screw, and the cutting mechanism 3 includes a through hole 32 for the circular tube 61 to pass through and a screw hole for the screw to be screwed, and the circular tube 61 and the screw are both extended along the width direction of the optical film 30, and the first guide frame 6 also includes a servo motor for driving the screw to rotate, and the servo motor can control a cutting mechanism 3 to slide along the circular tube 61 to achieve positioning.

[0035] The cushion film supply mechanism 4 includes a feed roll 41, a take-up roll 42 and a guide mechanism 43; the feed roll 41 and the take-up roll 42 are respectively connected to the two ends of the cushion film 20 and are used to drive the cushion film 20 to pass through the support platform mechanism 2; the guide mechanism 43 is used to guide the cushion film 20 so that it is transported on the feed roll 41, the support platform mechanism 2 and the take-up roll 42 in sequence. The second guide frame 7 includes a feed roller 71, a take-up roller 72 and a guide rod 73, the feed roll 41 is adjustably movably arranged on the feed roller 71, the take-up roll 42 is adjustably movably arranged on the take-up roller 72, and the guide mechanism 43 is adjustably movably arranged on the guide rod 73. The feed roller 71 and the take-up roller 72 are driven by a driving motor to achieve synchronous movement of the cushion film 20 and the optical film 30. Therefore, the synchronous movement of the cushion film 20, the optical film 30 and the support platform 21 can be achieved by controlling the rotation speed of the feed roller 71, the take-up roller 72, the first conveying roller 11, the second conveying roller 12 and the support platform mechanism 2. The feed roll and the take-up roll are detachably arranged on the corresponding feed roller and the take-up roller. After the cushion film is taken up, the take-up roll can be removed and replaced on the feed roller as the next feed roll to achieve recycling, and the feed roll can be placed on the take-up roller as the next take-up roll.

[0036] The guide mechanism 43 includes a guide frame 433 and a plurality of first guide wheels 431 and a plurality of second guide wheels 432 arranged on the guide frame 433; the first guide wheels 431 are arranged in sequence to connect the cushion film 20 to the supply roll 41 and the supporting platform mechanism 2, and the second guide wheels 432 are arranged in sequence to connect the cushion film 20 to the supporting platform mechanism 2 and the receiving roll 42.

[0037] In this embodiment, the cutting mechanism 3 includes a blade 33 and a driving mechanism 34. The driving mechanism 34 can adjustably control the blade 33 to approach or move away from the support mechanism 2. The blade 33 is used to cut the optical film 30. The blade 30 is made of tungsten steel. The blade 33 is a round knife. The driving mechanism 34 includes a servo motor 341, a transmission mechanism 342 and a knife holder 343. The blade 33 is installed on the knife holder 343. The servo motor 341 is connected to the knife holder 343 through the transmission mechanism 342 to drive the knife holder 343 to approach or move away from the support mechanism 2. The servo motor 341 can achieve more accurate displacement, which is convenient for achieving accurate depth cutting. The transmission mechanism 342 can be a conventional mechanism that converts rotational motion into linear motion, such as a screw drive, etc., which will not be repeated here.

[0038] The conveying mechanism 1 further includes two take-up rolls 13 arranged behind the second conveying roll 12, and the take-up rolls 13 respectively receive staggered cut and slit optical films 30. For example, the two take-up rolls 13 are staggered up and down, for example, the optical film 30 is cut into three pieces, the middle optical film 30 is rolled up to the take-up roll 13 located on the upper side, and the optical films 30 located on both sides are rolled up to the take-up roll 13 located on the lower side.

[0039] The above is only a preferred specific implementation of the present invention, but the design concept of the present invention is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the present invention within the technical scope disclosed by the present invention shall be deemed to infringe the protection scope of the present invention.

Claims

1. An optical film cutting device, characterized in that: include: Conveying mechanism; at least one cutting mechanism; at least one cushion film supply mechanism; The supporting structure; The conveying mechanism is used to convey the optical film to move through the supporting platform mechanism; the cushion film supplying mechanism is used to supply the cushion film to pass through the supporting platform mechanism, and the cushion film and the optical film are sequentially stacked on the supporting platform mechanism; the cutting mechanism can be adjusted to approach or move away from the supporting platform mechanism to cut the moving optical film at the position of the supporting platform mechanism corresponding to the cushion film; The cushion film supply mechanism and the conveying mechanism are configured to move the cushion film and the optical film synchronously; The cushion film supply mechanism includes a supply roll, a receiving roll and a guide mechanism; the supply roll and the receiving roll are respectively connected to the two ends of the cushion film and are used to drive the cushion film to pass through the supporting platform mechanism; the guide mechanism is used to guide the cushion film so that it is transported on the supply roll, the supporting platform mechanism and the receiving roll in sequence.

2. The optical film cutting device according to claim 1, characterized in that: The support mechanism comprises a support surface, and the cushion film and the optical film are sequentially stacked on the support surface; the support mechanism, the cushion film supply mechanism and the conveying mechanism are configured to enable the cushion film, the optical film and the support surface to move synchronously.

3. An optical film cutting device as claimed in claim 2, characterized in that: The support platform structure is a roller, and the outer peripheral wall of the roller defines the support platform surface.

4. The optical film cutting device according to claim 1, characterized in that: It comprises a plurality of cutting mechanisms and a plurality of cushion film supply mechanisms; the plurality of cutting mechanisms are respectively arranged corresponding to the plurality of cushion film supply mechanisms.

5. An optical film cutting device as claimed in claim 1 or 4, characterized in that: It also includes a first guide frame and a second guide frame; the cutting mechanism is adjustably movably arranged on the first guide frame, and the cushion film supply mechanism is adjustably movably arranged on the second guide frame.

6. The optical film cutting device according to claim 5, characterized in that: The second guide frame includes a feeding roller, a receiving roller and a guide rod, the feeding roll is adjustably movably arranged on the feeding roller, the receiving roll is adjustably movably arranged on the receiving roller, and the guide mechanism is adjustably movably arranged on the guide rod.

7. An optical film cutting device as claimed in claim 6, characterized in that: The guide mechanism includes a guide frame and a plurality of first guide wheels and a plurality of second guide wheels arranged on the guide frame; the first guide wheels are arranged in sequence to connect the cushion film to the supply roll and the support platform mechanism, and the second guide wheels are arranged in sequence to connect the cushion film to the support platform mechanism and the receiving roll.

8. The optical film cutting device according to claim 1, characterized in that: The cutting mechanism comprises a blade and a driving mechanism. The driving mechanism can adjustably control the blade to approach or move away from the platform mechanism. The blade is used for cutting the optical film.

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