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CN-224203535-U - High-precision cover glass machine for liquid crystal screen production

CN224203535UCN 224203535 UCN224203535 UCN 224203535UCN-224203535-U

Abstract

The utility model relates to a high-precision glass covering machine for liquid crystal screen production, which comprises a machine table, a rotary table unit, a shell feeding unit, a shell detecting unit, a material taking glass covering unit, a glass detecting unit and a glass covering discharging unit, wherein the rotary table unit, the shell feeding unit, the material taking glass covering unit and the glass covering discharging unit are respectively arranged on the machine table, the shell detecting unit is used for identifying the positions of four corners of a shell on a glass covering station from top to bottom, the glass detecting unit is used for identifying the positions of four corners of glass from bottom to top, the material taking glass covering unit is used for adjusting the angles and positions of the glass according to the position information detected by the shell detecting unit and the glass detecting unit, and the shell feeding unit, the material taking glass covering unit and the glass covering discharging unit are linked through the rotary table unit which is driven intermittently, so that synchronous circulation of the shell and the glass is realized, and meanwhile, space coordinate matching is formed through the shell detecting unit and the glass detecting unit, so that the installation precision is improved.

Inventors

  • Chang Liangjun
  • CHEN LONG

Assignees

  • 苏州浚泰新能源设备有限公司

Dates

Publication Date
20260505
Application Date
20250620

Claims (9)

  1. 1. The high-precision glass covering machine for the production of the liquid crystal screen is characterized by comprising a machine table, a turntable unit, a shell feeding unit, a shell detection unit, a material taking glass covering unit, a glass detection unit and a glass covering blanking unit, wherein the turntable unit, the shell feeding unit, the shell detection unit, the material taking glass covering unit, the glass detection unit and the glass covering blanking unit are respectively arranged on the machine table; The rotary table unit comprises a rotary table which is horizontally arranged and an intermittent mechanism for driving the rotary table to intermittently move, wherein a feeding station, a glass covering station and a discharging station which are uniformly arranged in the circumferential direction are respectively arranged on the rotary table, and sucking disc assemblies for fixing the shell are respectively arranged on each station; The shell feeding unit comprises a feeding conveying line for conveying the shell, a positioning mechanism arranged on the magnetic wheel conveying line and used for positioning the shell on line, a jacking mechanism arranged on the magnetic wheel conveying line and used for jacking the positioned shell, and a shell feeding manipulator used for placing the positioned shell on a feeding station; The shell detection unit is positioned right above the cover glass station and is used for identifying the positions of four corners of the shell on the cover glass station from top to bottom; The material taking cover glass unit is used for grabbing glass, sending the glass to the glass detection unit for detection, adjusting the angle and the position of the glass according to the detected position information, and finally installing the glass into the shell of the cover glass station; The glass detection unit is positioned in the machine table and is used for identifying the positions of four corners of glass from bottom to top; The cover glass blanking unit comprises a cover glass blanking conveying line and a cover glass blanking manipulator, wherein the cover glass blanking manipulator is used for taking a shell with mounted glass from a blanking station and placing the shell on the cover glass blanking conveying line.
  2. 2. The high-precision cover glass machine for liquid crystal screen production of claim 1, wherein the feeding conveying line adopts a magnetic wheel conveying line, an avoidance part is arranged in the middle of the feeding conveying line, and a gap is arranged between adjacent rollers; the positioning mechanism comprises end positioning assemblies respectively positioned at two ends of the magnetic wheel conveying line and side positioning assemblies respectively positioned at two sides of the magnetic wheel conveying line; The end positioning assembly comprises an end positioning cylinder, an end lifting cylinder, an end mounting frame and two end positioning columns, wherein the end positioning cylinder is horizontally arranged at the end of the avoiding part, the movement direction of the end positioning cylinder is perpendicular to the roller, the end lifting cylinder is vertically arranged at the driving end of the end positioning cylinder, the end mounting frame is arranged at the driving end of the end lifting cylinder, and the two end positioning columns are vertically arranged on the end mounting frame and are placed at intervals along the axial direction of the roller; the side positioning assembly comprises a side positioning cylinder horizontally arranged below the roller and parallel to the roller in the movement direction, a side mounting frame arranged at the driving end of the side positioning cylinder and vertically arranged with the roller, and a plurality of side positioning columns vertically arranged on the side mounting frame and positioned between the adjacent rollers, wherein the side positioning columns are always higher than the conveying surface of the roller.
  3. 3. The high-precision glass covering machine for liquid crystal screen production according to claim 2, wherein the jacking mechanism comprises a feeding jacking plate which is horizontally arranged in the avoiding part and is shaped like a Chinese character 'Feng', and a feeding jacking cylinder which is arranged in the magnetic wheel conveying line and is used for driving the feeding jacking plate to lift, and the initial position of the feeding jacking plate is not higher than the roller conveying surface.
  4. 4. The high-precision glass covering machine for liquid crystal screen production according to claim 1, wherein the shell detection unit comprises a shell detection portal frame, a back-shaped top plate horizontally arranged on the top of the shell detection portal frame, a hollowed-out part arranged on the back-shaped top plate, a shell detection X-axis linear module and a shell detection guide rail assembly which are arranged on the back-shaped top plate in parallel and are respectively positioned on two sides of the hollowed-out part, and two shell detection Y-axis linear modules, one ends of which are arranged on the shell detection guide rail assembly in a sliding manner and are placed in parallel; The shell detection X-axis linear module and the shell detection Y-axis linear module are double-sliding table linear modules, wherein the two sliding tables are symmetrically arranged on the linear modules and are driven by the linear modules to approach or depart at the same time; the other ends of the two shell detection Y-axis linear modules are respectively positioned on the two sliding tables of the two shell detection X-axis linear modules, and visual identification modules are respectively arranged on the two sliding tables of the shell detection Y-axis linear modules.
  5. 5. The high-precision glass covering machine for liquid crystal screen production according to claim 1, wherein the glass taking unit comprises a glass taking support, a glass taking X-axis linear module horizontally arranged on the glass taking support, a glass taking Y-axis linear module arranged at the driving end of the glass taking X-axis linear module and vertically arranged with the glass taking X-axis linear module, a glass taking Z-axis linear module vertically arranged at the driving end of the glass taking Y-axis linear module and vertically arranged with the glass taking Y-axis linear module, an angle adjusting motor vertically arranged at the driving end of the glass taking Z-axis linear module, and a glass taking sucker horizontally arranged at the driving end of the angle adjusting motor.
  6. 6. The high-precision cover glass machine for producing the liquid crystal screen of claim 1, wherein the cover glass blanking conveying line is an equidistant conveying line.
  7. 7. The high-precision cover glass machine for producing liquid crystal screens according to any one of claims 1 to 6, further comprising a backlight module cleaning unit; A cleaning station is further arranged between the feeding station and the glass covering station on the turntable; The backlight module cleaning unit comprises a cleaning support, a supporting mechanism arranged on the cleaning support and positioned below the cleaning station, and a cleaning mechanism arranged on the cleaning support and positioned above the cleaning station; The cleaning mechanism comprises a cleaning linear module which is horizontally placed, a sliding table which is arranged at the driving end of the cleaning linear module, a floating frame which is vertically arranged on the sliding table in a sliding manner, a groove-shaped cam which is of a plane structure and is placed in parallel with the cleaning linear module, a track groove which is arranged on the groove-shaped cam and is low in the middle and high in two ends, a roller which is arranged on the floating frame and is positioned in the track groove, a cleaning frame which is arranged at the bottom of the floating frame and is vertically placed with the cleaning linear module, and a dust-binding roller which is rotationally arranged on the cleaning frame and is used for cleaning the surface of the backlight module, wherein an elastic component is arranged between the floating frame and the cleaning frame; The supporting mechanism has a lifting function and is used for supporting the bottom of the cleaning station or two ends of the shell on the cleaning station.
  8. 8. The high-precision glass covering machine for liquid crystal screen production of claim 7, further comprising a backlight module detection unit and a defective product blanking unit; The device comprises a cleaning station, a backlight module detection unit, a visual positioning module, a visual detection module, a cleaning module and a control unit, wherein the backlight module detection unit is positioned at one side of the cleaning station and used for conducting detection on a cleaned backlight module; A defective product blanking station is further arranged between the cleaning station and the glass covering station on the turntable; The defective product blanking unit is located on one side of a defective product blanking station and comprises a defective product blanking conveying line and a defective product blanking manipulator, and the defective product blanking manipulator is used for placing a shell provided with a defective product backlight module on the defective product blanking station on the defective product blanking conveying line to flow out.
  9. 9. The high-precision cover glass machine for liquid crystal screen production of claim 8, wherein the shell feeding manipulator, the defective product discharging manipulator and the cover glass discharging manipulator have the same structure and comprise a mechanical arm and a clamping jaw assembly provided with a mechanical arm driving end; The clamping jaw assembly comprises a connecting seat, clamping jaw cylinders, L-shaped clamping jaws and a plurality of suckers, wherein the clamping jaw cylinders are respectively arranged at two ends of the connecting seat and symmetrically outwards arranged at the driving ends of the connecting seat, the L-shaped clamping jaws are arranged at the driving ends of the clamping jaw cylinders, and the suckers are vertically arranged at the bottoms of the connecting seat.

Description

High-precision cover glass machine for liquid crystal screen production Technical Field The utility model relates to the technical field of liquid crystal screen production, in particular to a high-precision glass covering machine for liquid crystal screen production. Background In the manufacturing process of a liquid crystal display module (LCM), the assembly of a Backlight Unit (BLU) is one of the key links. The liquid crystal display comprises a shell, a light guide plate, an optical film and other components, wherein the shell of the liquid crystal display is internally provided with the reflector, the light guide plate, the optical film and other components in sequence, and finally, a glass substrate is precisely covered on the surface of the module to form an optical display interface. At present, the installation of this glass substrate generally adopts manual operation mode, and manual with glass substrate alignment shell draw-in groove location installation, not only waste time and energy, intensity of labour is big, work efficiency is low, and the installation accuracy is unstable, very relies on operator's experience, and human contact easily remains fingerprint, sweat stain or dust on glass surface simultaneously, reduces optical transmittance, and surface pollution risk is high. Disclosure of utility model The utility model aims to overcome the defects of the prior art and provide a high-precision cover glass machine for producing a liquid crystal screen. In order to achieve the aim, the high-precision glass covering machine for the production of the liquid crystal screen comprises a machine table, a turntable unit, a shell feeding unit, a shell detection unit, a material taking glass covering unit, a glass detection unit and a glass covering blanking unit, wherein the turntable unit, the shell feeding unit, the shell detection unit, the material taking glass covering unit, the glass detection unit and the glass covering blanking unit are respectively arranged on the machine table; The rotary table unit comprises a rotary table which is horizontally arranged and an intermittent mechanism for driving the rotary table to intermittently move, wherein a feeding station, a glass covering station and a discharging station which are uniformly arranged in the circumferential direction are respectively arranged on the rotary table, and sucking disc assemblies for fixing the shell are respectively arranged on each station; The shell feeding unit comprises a feeding conveying line for conveying the shell, a positioning mechanism arranged on the magnetic wheel conveying line and used for positioning the shell on line, a jacking mechanism arranged on the magnetic wheel conveying line and used for jacking the positioned shell, and a shell feeding manipulator used for placing the positioned shell on a feeding station; The shell detection unit is positioned right above the cover glass station and is used for identifying the positions of four corners of the shell on the cover glass station from top to bottom; The material taking cover glass unit is used for grabbing glass, sending the glass to the glass detection unit for detection, adjusting the angle and the position of the glass according to the detected position information, and finally installing the glass into the shell of the cover glass station; The glass detection unit is positioned in the machine table and is used for identifying the positions of four corners of glass from bottom to top; The cover glass blanking unit comprises a cover glass blanking conveying line and a cover glass blanking manipulator, wherein the cover glass blanking manipulator is used for taking a shell with mounted glass from a blanking station and placing the shell on the cover glass blanking conveying line. Preferably, the feeding conveyor line adopts a magnetic wheel conveyor line, the middle part is provided with an avoiding part, and a gap is arranged between adjacent rollers; the positioning mechanism comprises end positioning assemblies respectively positioned at two ends of the magnetic wheel conveying line and side positioning assemblies respectively positioned at two sides of the magnetic wheel conveying line; The end positioning assembly comprises an end positioning cylinder, an end lifting cylinder, an end mounting frame and two end positioning columns, wherein the end positioning cylinder is horizontally arranged at the end of the avoiding part, the movement direction of the end positioning cylinder is perpendicular to the roller, the end lifting cylinder is vertically arranged at the driving end of the end positioning cylinder, the end mounting frame is arranged at the driving end of the end lifting cylinder, and the two end positioning columns are vertically arranged on the end mounting frame and are placed at intervals along the axial direction of the roller; the side positioning assembly comprises a side positioning cylinder horizontally arranged below the rolle