CN115648302A

CN115648302A - Optical diaphragm cutting device and method for backlight module

Info

Publication number: CN115648302A
Application number: CN202211369287.6A
Authority: CN
Inventors: 杨悦生
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-01-31

Abstract

The invention belongs to the technical field of optical diaphragm cutting, and particularly discloses an optical diaphragm cutting device for a backlight module, which comprises an equipment frame, wherein a rectangular cutting device is installed on the upper side of the equipment frame, a raw material roller is installed on a supporting plate at the position, close to one side edge, of the upper end of the equipment frame, two groups of auxiliary rollers are installed between the rectangular cutting device and the raw material roller, a waste material roller is installed on a supporting plate at one side, close to the rectangular cutting device, of the upper end of the equipment frame, control mechanisms are installed at the front end of the equipment frame and at two sides close to the rectangular cutting device, and a conveying device is installed on the inner side of the equipment frame. The invention reduces the deviation or quickly generates the membrane deviation and pushes the unevenly stacked membranes falling to the inner side of the collecting box to be placed in order by matching the control mechanism and the collecting mechanism.

Description

Optical diaphragm cutting device and method for backlight module

Technical Field

The invention belongs to the technical field of optical diaphragm cutting, and particularly discloses an optical diaphragm cutting device and method for a backlight module.

Background

The backlight module is one of the key components of the liquid crystal display panel. The function is to provide sufficient light source with uniform brightness and distribution, so that the light source can normally display images; and optical films are a class of optical media materials that consist of thin layered media that propagate a light beam through an interface. The application of optical films began in the 30's of the 20 th century. Optical films have been widely used in the optical and optoelectronic arts to manufacture a variety of optical instruments.

When an optical film is conveyed, the optical film is easily affected by different problems and possibly has a deviation problem, so that a cutting surface is uneven, the front and the back of a cut flaky optical film are irregular when the cut flaky optical film is stacked, and adjacent films are easily staggered.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a device and a method for cutting an optical film for a backlight module.

In order to achieve the above purposes, the invention provides an optical membrane cutting device for a backlight module, which comprises an equipment frame, wherein a rectangular cutting device is installed on the upper side of the equipment frame, a raw material roller is installed on a supporting plate at the position, close to the edge of one side, of the upper end of the equipment frame, two groups of auxiliary rollers are installed between the rectangular cutting device and the raw material roller, a waste material roller is installed on a supporting plate at one side, close to the rectangular cutting device, of the upper end of the equipment frame, control mechanisms are installed at the front end of the equipment frame and two sides close to the rectangular cutting device, a conveying device is installed on the inner side of the equipment frame, collecting mechanisms are installed at the position, close to the edge of the other side, of the inner part of the equipment frame, and the control mechanisms comprise protective shells fixedly installed at the front end of the equipment frame, the utility model discloses a cutting device, including conveyor's a set of synchronizing roller, the front end fixedly connected with motor of protective housing, the first double synchronizing wheel of fixedly connected with on conveyor's a set of synchronizing roller, the inside equal swing joint in both sides position that is close to rectangle cutting device of upside of equipment rack has the dwang, and is two sets of the equal fixedly connected with second double synchronizing wheel in front of dwang is two sets of the cover has first hold-in range between the second double synchronizing wheel, the cover has the second hold-in range between first double synchronizing wheel and a set of second double synchronizing wheel, the inboard cover of first double synchronizing wheel has the third hold-in range, the downside position cover of third hold-in range has first single synchronizing wheel, the equal fixedly connected with second single synchronizing wheel in rear side position of waste roller and a set of dwang, and is two sets of the cover has the fourth hold-in range between the second single synchronizing wheel.

In the technical scheme, preferably, two sets of the outside of dwang is close to front and back side position and all has the pinch roller, the one end fixedly connected with drum of pinch roller, the outside fixedly connected with spacing ring of drum, the inside swing joint of upside of drum has positioning bolt, the outside of drum is close to and has spacing external member between pinch roller and the spacing ring.

In the above technical scheme, preferably, two sets of the dwang runs through the front side position of equipment rack respectively, first hold-in range, second hold-in range, third hold-in range cup joint with two sets of second double synchronizing wheel, first double synchronizing wheel, the activity of first single synchronizing wheel respectively, the fourth hold-in range cup joints with the activity of two sets of second single synchronizing wheels.

In the above technical scheme, it is preferred that positioning bolt and drum are threaded connection, positioning bolt's bottom and dwang laminating, one side of spacing external member and a set of auxiliary roller swing joint who is close to rectangle cutting device.

In the above technical solution, preferably, the collecting mechanism includes a fixing frame disposed on one side of the equipment rack, a collecting box is disposed at a position of the inner side of the equipment rack corresponding to the fixing frame, two sets of movable openings are disposed at inner sides of the collecting box and the fixing frame, a sliding rail is fixedly connected to a position of the lower end of the fixing frame corresponding to the two sets of movable openings, a movable block is disposed at an inner side of the sliding rail, sliding blocks are fixedly connected to front and rear ends of the movable block respectively, push rods are fixedly connected to positions of the upper ends of the movable blocks corresponding to the two sets of movable openings respectively, a connecting piece is fixedly connected to a lower end of the movable block, sliding grooves are disposed at positions of inner walls of front and rear sides of the sliding rail corresponding to the sliding blocks respectively, a movable rod is sleeved on an outer side of the connecting piece, a connecting rod is fixedly connected to an upper inner wall of the equipment rack, a rotary rod is movably connected to a lower side of the connecting rod, a disc is fixedly connected to a rear end of the rotary rod, and a connecting block is fixedly connected to a rear end of the disc.

In the above technical scheme, preferably, the upside position slope of mount sets up, collect the box block in the inboard of mount, the distance equals to cut back diaphragm length between activity mouth and the inner wall of collecting box one side, slider and spout block, the push rod runs through in the activity mouth that sets up on mount and the collection box.

In the above technical scheme, it is preferred that the movable rod is movably sleeved with the connecting block, the connecting rod is arranged in an inclined manner, the rotating rod penetrates through the equipment frame and is fixedly connected with the first single synchronizing wheel, and the connecting block is located at the position, close to the edge, of the rear end of the disc.

In the above technical solution, preferably, a group of synchronous rollers in the conveying device, which is close to the rectangular cutting device, penetrates through the equipment frame and is fixedly connected with an internal rotor of the motor, and the two groups of auxiliary rollers are respectively located at upper and lower sides.

Also provided is an optical film cutting method for operating an optical film cutting device for a backlight module, comprising the steps of:

s1: the position of the four groups of pressure wheels is adjusted by rotating the positioning bolt to loosen the limitation of the cylinder, and the movement of the two groups of pressure wheels can drive the limiting sleeve parts on the two sides to be attached to the two sides of the diaphragm for limitation, so that the deviation is reduced or the diaphragm deviation is quickly generated;

s2: the motor is started to drive the pressing wheel to rotate, the pressed membrane is conveyed to the lower side of the rectangular cutting device to be matched and cut synchronously, and the membrane is operated to the collecting mechanism to be collected, the purposes of feeding, waste material rolling and finished product conveying are achieved through the group of motors, and the cost of a plurality of groups of conventional driving devices is reduced;

s3: conveying the sliding to the inside of the collecting box through the conveying device and the fixing frame, collecting and stacking, driving the two groups of push rods to move synchronously in the moving opening by the motor, and pushing the unevenly stacked membranes falling to the inner side of the collecting box to be neatly placed.

Compared with the prior art, the invention has the following beneficial effects:

1. when the device is used, the limitation of the cylinder and the rotating rod can be loosened by rotating the positioning bolt, the positions of the four groups of pressing wheels are adjusted according to the width of the membrane to be fixed, the two groups of pressing wheels close to the waste roller are arranged on a cutting line of the rectangular cutting device for the membrane, the two groups of pressing wheels on the other side can drive limiting external members on two sides simultaneously, the two groups of pressing wheels on the other side are attached to the two sides of the membrane to be limited, and the offset is reduced or the offset of the membrane can be quickly generated.

2. The utility model discloses a synchronous cutting device of waste material, including a conveying device, a waste material roller, a starting motor, a conveyor, it rotates to drive first double-shaft synchronizing wheel simultaneously, and the rotatory cooperation second hold-in range of first double-shaft synchronizing wheel, the connection of third hold-in range, it rotates to drive two sets of second double-shaft synchronizing wheel and first single synchronizing wheel, make two sets of second double-shaft synchronizing wheel drive two sets of dwang go on and the pinch roller rotates, the diaphragm that will press holding is sent to the downside cooperation of rectangle cutting device and is cut in step, send it to conveyor again, operate to collecting mechanism and collect, and the cooperation of waste material roller drive second single synchronizing wheel and fourth hold-in range, realize carrying out the roll-up waste material with the dwang in step, realize the pay-off through a set of motor, the mesh of waste material roll-up and finished product conveying, reduce conventional multiunit's cost.

3. Fashioned diaphragm passes through conveyor and mount transport landing to the inside of collecting the box and collects and stack, through will collecting the convenient collection of box and taking, and when driving first single synchronizing wheel rotation through the motor, make fixed rotary rod and disc carry out synchronous revolution, and rotatory disc can drive connecting block pulling movable rod and connecting piece, make fixed movable block slide in the spout through two sets of sliders, two sets of push rods realize the synchronization activity in the expansion gap, will drop to the inboard uneven diaphragm that stacks of collecting the box and promote to neatly putting.

Drawings

FIG. 1 is a schematic structural diagram of an optical film cutting device for a backlight module according to the present invention;

FIG. 2 is a schematic diagram illustrating an internal structure of an optical film cutting device for a backlight module according to the present invention;

FIG. 3 is a schematic diagram of an overall and partial internal structure of an optical film cutting device for a backlight module according to the present invention;

FIG. 4 is an enlarged schematic view of a portion A of an optical film cutting device for a backlight module according to the present invention;

FIG. 5 is a schematic view of a partial structure of a control mechanism of an optical film cutting device for a backlight module according to the present invention;

FIG. 6 is a schematic view of an enlarged structure of a portion B of an optical film cutting device for a backlight module according to the present invention;

FIG. 7 is a schematic diagram of a partial explosion structure of a collecting mechanism of an optical film cutting device for a backlight module according to the present invention;

FIG. 8 is a schematic view of a partial structure of a collecting mechanism of an optical film cutting device for a backlight module according to the present invention.

In the figure: 1. an equipment rack; 2. a rectangular cutting device; 3. a raw material roller; 4. an auxiliary roller; 5. a scrap roll; 6. a control mechanism; 61. a protective shell; 62. a motor; 63. a first dual-axis synchronizing wheel; 64. rotating the rod; 65. a second dual-shaft synchronizing wheel; 66. a first synchronization belt; 67. a second synchronous belt; 68. a third synchronous belt; 69. a first single synchronizing wheel; 610. a second single synchronizing wheel; 611. a fourth synchronous belt; 612. a pinch roller; 613. a cylinder; 614. a limiting ring; 615. positioning the bolt; 616. a limiting sleeve member; 7. a conveying device; 8. a collection mechanism; 81. a fixed mount; 82. a collection box; 83. a movable opening; 84. a slide rail; 85. a movable block; 86. a slider; 87. a push rod; 88. a connecting member; 89. a chute; 810. a movable rod; 811. a connecting rod; 812. rotating the rod; 813. a disc; 814. and (4) connecting the blocks.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments disclosed below.

As shown in fig. 1-8, an optical film cutting device for a backlight module comprises an equipment frame 1, a rectangular cutting device 2 is installed on the upper side of the equipment frame 1, a material roller 3 is installed on a supporting plate near one side edge position of the upper end of the equipment frame 1, two sets of auxiliary rollers 4 are installed between the rectangular cutting device 2 and the material roller 3 near the upper end of the equipment frame 1, a waste roller 5 is installed on a supporting plate near one side of the rectangular cutting device 2 near the upper end of the equipment frame 1, control mechanisms 6 are installed at the front end of the equipment frame 1 and at two sides near the rectangular cutting device 2, a conveying device 7 is installed at the inner side of the equipment frame 1, collecting mechanisms 8 are installed at the inner side and at the other side edge position of the equipment frame 1, each control mechanism 6 comprises a protective shell 61 fixedly installed at the front end of the equipment frame 1, a motor 62 is fixedly connected to the front end of the protective shell 61, a first dual-shaft synchronizing wheel 63 is fixedly connected to one set of the conveying device 7, a rotating rod 63 is fixedly connected to two sets of the first dual-shaft synchronizing wheels 63 near the rectangular cutting device 2, 64 is movably connected to two sets of the upper end of the first dual-shaft synchronizing wheels, a single dual-shaft synchronizing wheel 68 is sleeved to a single-shaft synchronizing wheel 69, a single-side synchronizing wheel cylinder synchronizing wheel 64 is connected to the single-side synchronizing wheel 610, a single-side synchronizing wheel 69 near the single-side synchronizing wheel 64 is sleeved to the first dual-side synchronizing wheel 65, a single-side synchronizing wheel 69, a single-side synchronizing wheel 64 is sleeved to the single-side synchronizing wheel 69, a limit ring 614 is fixedly connected to the outer side of the cylinder 613, a positioning bolt 615 is movably connected to the inner side of the upper side of the cylinder 613, and a limit sleeve 616 is sleeved on the outer side of the cylinder 613, close to the space between the pinch roller 612 and the limit ring 614.

Two sets of dwang 64 run through the front side position of equipment rack 1 respectively, first hold-in range 66, second hold-in range 67, third hold-in range 68 respectively with two sets of second double synchronizing wheel 65, first double synchronizing wheel 63, first single synchronizing wheel 69 activity cup joints, fourth hold-in range 611 cup joints with two sets of second single synchronizing wheel 610 activities, positioning bolt 615 is threaded connection with drum 613, positioning bolt 615's bottom and dwang 64 laminating, one side of spacing external member 616 and a set of auxiliary roller 4 swing joint that is close to rectangle cutting device 2.

When the device is used, the limitation between the cylinder 613 and the rotating rod 64 can be loosened by rotating the positioning bolt 615, the positions of four groups of press wheels 612 are adjusted to be fixed according to the width of the membrane, two groups of press wheels 612 close to the waste roller 5 are arranged on the cutting line of the rectangular cutting device 2 for the membrane, the movement of the two groups of press wheels 612 on the other side can drive the limiting sleeve 616 on both sides to be attached to the limitation on both sides of the membrane to reduce the offset or quickly generate the membrane offset, then the motor 62 is started to drive the conveying device 7 to operate, and simultaneously the first double-shaft synchronizing wheel 63 is driven to rotate, the rotation of the first double-shaft synchronizing wheel 63 is matched with the connection of the second synchronous belt 67 and the third synchronous belt 68 to drive the two groups of second double-shaft synchronizing wheels 65 and the first single synchronous wheel 69 to rotate, so that the two groups of second double-shaft synchronizing wheels 65 drive the two groups of rotating rod 64 and the press wheels 612 to rotate, the pressed membrane is conveyed to the lower side of the rectangular cutting device 2 to be matched with the lower side of the rectangular cutting device, then conveyed to the conveying device 7 to be operated to the collecting mechanism 8 for collection, and the waste roller 5 drives the second single-shaft synchronizing wheel 610 and the fourth synchronous belt 611 to be matched with the waste roller 611, so as to reduce the cost of the finished product conveying device and the finished product conveying cost of the finished product through the conventional waste roller 62 and the conventional waste roller drive motor and the finished product conveying device.

The collecting mechanism 8 comprises a fixed frame 81 arranged on one side of the equipment frame 1, a collecting box 82 is arranged on the inner side of the equipment frame 1 corresponding to the position of the fixed frame 81, two groups of movable openings 83 are respectively arranged on the inner sides of the collecting box 82 and the fixed frame 81, slide rails 84 are fixedly connected with the lower end of the fixed frame 81 corresponding to the positions of the two groups of movable openings 83, movable blocks 85 are arranged on the inner sides of the slide rails 84, sliding blocks 86 are fixedly connected with the front ends and the rear ends of the movable blocks 85, push rods 87 are fixedly connected with the upper ends of the movable blocks 85 corresponding to the positions of the two groups of movable openings 83, connecting pieces 88 are fixedly connected with the lower ends of the movable blocks 85, sliding grooves 89 are respectively arranged on the inner walls of the front sides and the rear sides of the slide rails 84 corresponding to the positions of the sliding blocks 86, movable rods 810 are sleeved on the outer sides of the connecting pieces 88, and connecting rods 811 are fixedly connected with the inner walls of the upper side of the equipment frame 1, downside swing joint of connecting rod 811 has rotary rod 812, the rear end fixedly connected with disc 813 of rotary rod 812, the rear end fixedly connected with connecting block 814 of disc 813, the upside position slope of mount 81 sets up, collect the inboard at mount 81 of box 82 block, distance equals to cut back diaphragm length between activity mouth 83 and the collection box 82 one side inner wall, slider 86 and spout 89 block, push rod 87 runs through in the activity mouth 83 that sets up on mount 81 and the collection box 82, activity pole 810 cup joints for the activity with connecting block 814, connecting rod 811 sets up for the slope, rotary rod 812 runs through equipment rack 1 and first single synchronizing wheel 69 fixed connection, the rear end that connecting block 814 is located disc 813 is close to the border position.

The formed diaphragms are conveyed by the conveying device 7 and the fixing frame 81 to slide into the collecting box 82 for collection and stacking, the collecting box 82 is convenient to collect and take, when the motor 62 drives the first single synchronizing wheel 69 to rotate, the fixed rotating rod 812 and the disc 813 rotate synchronously, the rotating disc 813 can drive the connecting block 814 to pull the movable rod 810 and the connecting piece 88, the fixed movable block 85 slides in the sliding groove 89 through the two groups of sliding blocks 86, the two groups of push rods 87 move synchronously in the movable opening 83, and the irregularly stacked diaphragms falling to the inner side of the collecting box 82 are pushed to be placed in order.

A group of synchronous rollers in the conveying device 7, which are close to the rectangular cutting device 2, penetrate through the equipment frame 1 and are fixedly connected with an inner rotor of the motor 62, and the two groups of auxiliary rollers 4 are respectively positioned at the upper side and the lower side.

Install on the backup pad of 1 one side edge of equipment frame with raw materials roller 3, pass the membrane material respectively from downside auxiliary roller 4 and upside auxiliary roller 4 and assist again, will place again and convey at the downside of four group's pinch rollers 612, cooperate rectangle cutting device 2 to carry out square cutting to the membrane material, the frame waste material carries out the roll-up through waste material roller 5.

s1: the position of four groups of pressing wheels 612 is adjusted by loosening the limitation of a cylinder 613 through rotating a positioning bolt 615, and the movement of the two groups of pressing wheels 612 can drive limiting external members 616 on two sides to be attached to the two sides of the membrane for limitation, so that the offset is reduced or the membrane offset is quickly generated;

s2: the motor 62 is started to drive the pinch roller 612 to rotate, the pressed membrane is sent to the lower side of the rectangular cutting device 2 to be cut synchronously in a matching mode, and the membrane is operated to the collecting mechanism 8 to be collected, the purposes of feeding, waste material coiling and finished product conveying are achieved through the motor 62, and the cost of a plurality of conventional driving devices is reduced;

s3: the conveying device 7 and the fixing frame 81 are used for conveying, sliding and stacking the films to the inside of the collecting box 82, the motor 62 drives the two groups of push rods 87 to synchronously move in the movable opening 83, and the films which fall to the inner side of the collecting box 82 and are not stacked are pushed to be placed in order.

The working principle is as follows: when in use, firstly the raw material roller 3 is arranged on a supporting plate at one side edge of the equipment frame 1, then the film material respectively passes through the lower auxiliary roller 4 and the upper auxiliary roller 4 for assistance, then the film material is conveyed under the four groups of press wheels 612, the rectangular cutting device 2 is matched for cutting the film material in a square shape, frame waste materials are furled by the waste material roller 5, in addition, when in use, the limitation of the cylinder 613 and the rotating rod 64 can be loosened by rotating the positioning bolt 615, the positions of the four groups of press wheels 612 are regulated and fixed according to the width of the film, the two groups of press wheels 612 close to the waste material roller 5 are arranged on the cutting line of the film by the rectangular cutting device 2, the movement of the other two groups of press wheels 612 can simultaneously drive the limiting sleeve parts 616 at two sides to be attached to the two sides of the film for limitation, so as to reduce the deviation or quickly generate the deviation of the film, secondly, the motor 62 is started to drive the conveying device 7 to operate, and simultaneously drive the first double-shaft synchronizing wheel 63 to rotate, the rotation of the first double-shaft synchronizing wheel 63 is matched with the connection of the second synchronous belt 67 and the third synchronous belt 68 to drive two groups of second double-shaft synchronizing wheels 65 and the first single synchronous wheel 69 to rotate, so that the two groups of second double-shaft synchronizing wheels 65 drive two groups of rotating rods 64 and the pressing wheel 612 to rotate, the pressed and held film is sent to the lower side of the rectangular cutting device 2 to be matched and synchronously cut, then the film is sent to the conveying device 7 to be operated to the collecting mechanism 8 to be collected, the waste roller 5 drives the second single synchronous wheel 610 to be matched with the fourth synchronous belt 611 to roll up waste materials synchronously with the rotating rods 64, the purposes of feeding, waste material rolling up and finished product conveying are realized through one group of motors 62, the cost of conventional multiple groups of driving devices is reduced, finally the formed film is conveyed to slide into the collecting box 82 through the conveying device 7 and the fixing frame 81 to be collected and stacked, through conveniently collecting and taking collecting box 82, and when driving first single synchronizing wheel 69 through motor 62 rotatory, make fixed rotary rod 812 and disc 813 carry out synchronous revolution, and rotatory disc 813 can drive connecting block 814 pulling movable rod 810 and connecting piece 88, make fixed movable block 85 slide in spout 89 through two sets of sliders 86, synchronous activity is realized in activity mouth 83 to two sets of push rods 87, will drop to the inboard uneven diaphragm of stacking of collecting box 82 and promote to neatly putting.

In the present invention, the terms "mounting," "connecting," "fixing," and the like are used in a broad sense, for example, "connecting" may be a fixed connection, a detachable connection, or an integral connection; may be connected with each other or indirectly connected with each other through an intermediate medium. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the appearances of the phrases "one embodiment," "some embodiments," "a specific embodiment," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment or example, but rather to the same embodiment or example. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, principal features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an optical film cutting device for backlight unit, includes equipment rack (1), its characterized in that, rectangle cutting device (2) are installed to the upside of equipment rack (1), the upper end of equipment rack (1) is close to and installs on a side border position backup pad raw materials roller (3), equipment rack (1) upper end is close to and installs two sets of auxiliary roller (4) between rectangle cutting device (2) and raw materials roller (3), the upper end of equipment rack (1) is close to rectangle cutting device (2) because of installing waste material roller (5) in the one side backup pad, control mechanism (6) are installed to the front end of equipment rack (1) and the both sides that are close to rectangle cutting device (2), conveyor (7) are installed to the inboard of equipment rack (1), the collection mechanism (8) are installed to the inside of equipment rack (1) and be close to opposite side border position, control mechanism (6) include that dwang fixed mounting is in the protective housing (61) front end of equipment rack (1), the front connection of protective housing (61) has motor (62), be connected with first synchronizing roller fixed on the a set of conveyor (7) a set of fixed mounting has first synchronizing roller (63) the upside and the protective housing (64) and the equal movable shaft (64) both sides of fixed mounting of equipment rack (1), be close to the equal movable shaft (64) are connected with the fixed mounting of both sides of the equipment rack (64) Two sets of the cover has first hold-in range (66) between second double shaft synchronizing wheel (65), the cover has second hold-in range (67) between first double shaft synchronizing wheel (63) and a set of second double shaft synchronizing wheel (65), the inboard cover of first double shaft synchronizing wheel (63) has third hold-in range (68), the downside position cover of third hold-in range (68) has first single synchronizing wheel (69), the equal fixedly connected with second single synchronizing wheel (610) in rear side position of waste material roller (5) and a set of dwang (64), two sets of the cover has fourth hold-in range (611) between second single synchronizing wheel (610).

2. The optical film cutting device for the backlight module as claimed in claim 1, wherein the two sets of rotating rods (64) are sleeved with press wheels (612) at positions close to the front and rear sides, one end of each press wheel (612) is fixedly connected with a cylinder (613), the outer side of each cylinder (613) is fixedly connected with a limit ring (614), the inner part of the upper side of each cylinder (613) is movably connected with a positioning bolt (615), and a limit sleeve (616) is sleeved between the outer side of each cylinder (613) close to the corresponding press wheel (612) and the corresponding limit ring (614).

3. The optical film cutting device for the backlight module as claimed in claim 1, wherein two sets of the rotating rods (64) respectively penetrate through the front position of the equipment rack (1), the first synchronous belt (66), the second synchronous belt (67), and the third synchronous belt (68) are movably sleeved with two sets of the second double-shaft synchronous wheel (65), the first double-shaft synchronous wheel (63), and the first single synchronous wheel (69), respectively, and the fourth synchronous belt (611) is movably sleeved with two sets of the second single synchronous wheel (610).

4. The cutting device for optical films for backlight modules according to claim 2, wherein the positioning bolt (615) is in threaded connection with the cylinder (613), the bottom of the positioning bolt (615) is attached to the rotating rod (64), and one side of the limiting sleeve (616) is movably connected to a set of auxiliary rollers (4) close to the rectangular cutting device (2).

5. The optical film cutting device for the backlight module as claimed in claim 1, wherein the collecting mechanism (8) comprises a fixing frame (81) disposed at one side of the equipment frame (1), a collecting box (82) is disposed at the inner side of the equipment frame (1) corresponding to the fixing frame (81), two sets of moving openings (83) are disposed at the inner sides of the collecting box (82) and the fixing frame (81), a sliding rail (84) is fixedly connected at the lower end of the fixing frame (81) corresponding to the two sets of moving openings (83), a moving block (85) is disposed at the inner side of the sliding rail (84), sliding blocks (86) are fixedly connected at the front and rear ends of the moving block (85), a push rod (87) is fixedly connected at the upper end of the moving block (85) corresponding to the two sets of moving openings (83), a connecting member (88) is fixedly connected at the lower end of the moving block (85), sliding grooves (89) are disposed at the inner wall of the front and rear sides of the sliding rail (84) corresponding to the sliding blocks (86), a moving rod (810) is sleeved at the outer side of the connecting member (88), a rotating rod (811) is fixedly connected at the upper end of the equipment frame (1), a rotating rod (813) is connected to the rotating rod (811), and a disc (813) is connected at the lower end of the rotating rod (813) fixed to the rotating rod (811), the rear end of the disc (813) is fixedly connected with a connecting block (814).

6. The device for cutting the optical film for the backlight module as claimed in claim 5, wherein the upper side of the fixing frame (81) is disposed obliquely, the collecting box (82) is engaged with the inner side of the fixing frame (81), the distance between the movable opening (83) and the inner wall of one side of the collecting box (82) is equal to the length of the film after cutting, the sliding block (86) is engaged with the sliding slot (89), and the push rod (87) penetrates through the movable opening (83) disposed on the fixing frame (81) and the collecting box (82).

7. The cutting device for optical film used in backlight module according to claim 5, wherein the movable rod (810) is movably sleeved with the connecting block (814), the connecting rod (811) is disposed obliquely, the rotating rod (812) penetrates through the device frame (1) and is fixedly connected with the first single synchronous wheel (69), and the connecting block (814) is located at the rear end of the circular disk (813) near the edge.

8. The cutting device for optical film sheets for backlight module set of claim 1, wherein one set of synchronous rollers near the rectangular cutting device (2) in the conveying device (7) is fixedly connected with the inner rotor of the motor (62) through the equipment frame (1), and two sets of auxiliary rollers (4) are respectively located at the upper and lower sides.

9. A method for using an optical film cutting device for a backlight module as claimed in any one of claims 1 to 8, comprising the steps of:

s1: the position of four groups of pressing wheels (612) is adjusted by loosening the limitation of a cylinder (613) through rotating a positioning bolt (615), and the movement of the two groups of pressing wheels (612) can drive limiting sleeve members (616) on two sides to be attached to the two sides of the membrane for limitation, so that the deviation is reduced or the membrane deviation is quickly generated;

s2: the motor (62) is started to drive the pinch roller (612) to rotate, the pressed membrane is sent to the lower side of the rectangular cutting device (2) to be matched and cut synchronously, and is operated to the collecting mechanism (8) to be collected, the purposes of feeding, waste material coiling and finished product conveying are achieved through the motor (62), and the cost of a plurality of conventional driving devices is reduced;

s3: conveying, sliding and falling to the inside of the collecting box (82) through the conveying device (7) and the fixing frame (81) to be collected and stacked, and driving the two groups of push rods (87) through the motor (62) to move synchronously in the movable opening (83), so that the films falling to the inner side of the collecting box (82) and stacked irregularly are pushed to be placed in order.