Light guide film production device

A light guide film production device, comprising a mounting bracket, and a feeding unit, a fusion stirring unit, an extrusion molding unit, a cooling shaping unit, a guide leveling unit, a flattening unit, and a finished product winding unit which are sequentially arranged on the mounting bracket, wherein

• the feeding unit comprises a feeding port which is formed at the top of the light guide film production device;
• the fusion stirring unit comprises a stirring tank, and a stirring drive device and a stirring blade spindle connected to an output end of the stirring drive device, as well as stirring blades connected to the stirring blade spindle, the stirring drive device and the stirring blade spindle being respectively disposed in the stirring tank;
• the feeding port is communicated with the stirring tank by means of a delivery pipe;
• the extrusion molding unit comprises a stamping head disposed at the bottom of the stirring tank, a first rolling roller set disposed directly under the stamping head, and a first drive device configured to drive the first rolling roller set to rotate;
• the stamping head is communicated with the stirring tank and configured to supply raw materials stirred by the fusion stirring unit to the first rolling roller set at a slow speed;
• and the first rolling roller set is configured to extrude the raw materials into a light guide film;
• wherein the cooling shaping unit is disposed directly under the extrusion molding unit, and comprises a first water tank and a plurality of edge film pressing mechanisms;
• the first water tank is set as a square tube structure which is provided with a first water inlet at one end in the length direction and a first water outlet at the other end;
• the light guide film perpendicularly penetrates through the inside of the square tube structure from the end where the first water inlet is formed, and the central axis of the light guide film coincides with the central axis of the square tube structure;
• a wall surface parallel to the surface of the light guide film in inner wall surfaces of the square tube structure is defined as a first wall surface, and a wall surface perpendicular to the surface of the light guide film in the inner wall surfaces of the square tube structure is defined as a second wall surface;
• the edge film pressing mechanisms are disposed on the first wall surface in a direction parallel to the central axis of the square tube structure;
• at least two edge film pressing mechanisms are correspondingly disposed on each of the first wall surfaces;
• and the edge film pressing mechanisms on two first wall surfaces parallel to each other are symmetrical on both sides of the light guide film in the width direction;
• the edge film pressing mechanism comprises a boss, a linear guide rail provided with a plurality of sliders, a plurality of pressure blocks, and a plurality of memory alloy plates with an arc memory shape;
• the boss is disposed on the first wall surface along the direction of the central axis of the square tube structure, and the cross section of the boss along the length direction is a U-like structure, and an opening of the U-like structure faces the first wall surface;
• the linear guide rail is arranged along the length direction of the boss, and further comprises a first sliding groove, a screw rod disposed in the first sliding groove, and a second drive device connected to the screw rod;
• the screw rod is parallel to the first sliding groove;
• the sliders are sleeved on the screw rod and move in the first sliding groove along the length direction of the screw rod;
• end faces of the sliders close to the light guide film are provided with elastic elements;
• and the elastic elements are connected to the pressure blocks;
• a plurality of memory alloy plate installation stations are formed on the part of the first wall surface forming a surrounding structure with the boss, and the memory alloy plates are disposed in the memory alloy plate installation stations;
• openings having one-to-one correspondence to the memory alloy plate installation stations are formed at the bottom of the U-like structure of the boss, and the size of the openings is at most such that when the memory alloy plates are heated to recover the arc shape, a part of the arc passes through the opening and abuts against the pressure blocks, so that the pressure blocks press the edge film of the light guide film;
• the guide leveling unit is disposed below the cooling shaping unit, and is configured to adjust the light guide film transmitted in the vertical direction to be transmitted in the horizontal direction;
• the flattening unit comprises a second rolling roller set, and a third drive device configured to drive the second rolling roller set to rotate;
• the second rolling roller set comprises two parallel and corresponding cylindrical rolling rollers disposed at both sides of the light guide film in the thickness direction;
• the roller surfaces of the two cylindrical rolling rollers abut against the surface of the light guide film;
• and a hollow hub-like structure is disposed inside the cylindrical rolling roller, and comprises a roller shaft and a plurality of blades;
• the third drive device comprises a second water tank, a driving wheel, a first driven wheel, a first conveyor belt made of memory alloy, a second driven wheel, a third driven wheel, a second conveyor belt, and a motor;
• the second water tank is communicated with the first water outlet by means of a pipe, and the driving wheel is disposed in the second water tank;
• the first driven wheel and the second driven wheel are spaced apart at one end of the roller shaft of any of the cylindrical rolling rollers;
• the third driven wheel is disposed on the end of the roller shaft of the other cylindrical rolling roller at the same side, and the position of the first driven wheel corresponds to that of the driving wheel;
• the first conveyor belt is sleeved on the driving wheel and the first driven wheel, the second conveyor belt is sleeved on the second driven wheel and the third driven wheel, and at least part of the first conveyor belt is submerged in the circulating water in the second water tank;
• and the motor is disposed at the end of the first driven wheel where the roller shaft is mounted, and is configured to initially start the rotation of the first driven wheel to rotate;
• and
• the finished product winding unit comprises a cutter mechanism and a winding machine;
• and the cutter mechanism is configured to cut the light guide film when the light guide film wound by the winding machine reaches a set length.