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 a 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 a 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 first 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 a first end in a length direction and a first water outlet at a second end;
• the light guide film perpendicularly penetrates through an inside of the square tube structure from the first end where the first water inlet is formed, and a central axis of the light guide film coincides with a central axis of the square tube structure;
• a plurality of wall surfaces parallel to a surface of the light guide film in a plurality of inner wall surfaces of the square tube structure is defined as a plurality of first wall surfaces, and a plurality of wall surfaces perpendicular to the surface of the light guide film in the plurality of the inner wall surfaces of the square tube structure is defined as a plurality of second wall surfaces;
• the edge film pressing mechanisms are disposed on one of the plurality of the first wall surfaces 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 plurality 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 a 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 shape;
• the boss is disposed on the plurality of the first wall surfaces along a direction of the central axis of the square tube structure, and a cross section of the boss along a length direction of the boss is a U-shape structure, and an opening of the U-shape structure faces the plurality of the first wall surfaces;
• 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 a length direction of the screw rod;
• end faces of the sliders facing 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 a part of the plurality of the first wall surfaces 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 a bottom of the U-shape structure of the boss, and a 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 shape passes through the openings and abuts against the pressure blocks, so that the pressure blocks press an 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 a vertical direction to be transmitted in a 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 a 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 a same side, and a 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 a circulating water in the second water tank;
• and the motor is disposed at an 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.