CN206749208U - A fully automatic alignment laminating machine for liquid crystal glass - Google Patents

Abstract

The utility model relates to a full-automatic aligning laminating machine for liquid crystal glass, which comprises a mechanical component, a motion control system and a vision aligning system; the motion control system is connected with the mechanical assembly, and the mechanical assembly is connected with the vision alignment system; the mechanical assembly comprises a rack assembly, an upper glass substrate overturning and feeding assembly, a lower glass substrate dispensing and feeding assembly, an alignment and lamination platform assembly and a discharging assembly; the mechanical assembly of the utility model is improved on the basis of the prior art, the feeding of the glass substrate is more uniform, the guiding precision is high, the pressing effect of the upper glass substrate and the lower glass substrate is good, the glue dispensing process adopts a machine vision alignment mode, and the positioning is accurate; the serial communication unit in the PLC can transmit signals more quickly and has high execution efficiency.

Description

A fully automatic alignment laminating machine for liquid crystal glass

technical field

The utility model relates to the technical field of liquid crystal glass processing and manufacturing, in particular to a liquid crystal glass full-automatic alignment laminating machine.

Background technique

In the LCD manufacturing process, the alignment bonding process of the upper and lower glass substrates has very high precision requirements. Usually, the alignment error should be controlled within 5 μm, and the alignment accuracy will have a direct impact on the quality of the product. If there is an error in the alignment, it may cause the circuits printed on the upper and lower substrate surfaces to fail to overlap, resulting in a short circuit, thereby forming a waste product. The previous alignment laminating machine has low alignment accuracy, poor dispensing uniformity, signal transmission lag, and the pressure and pressing time cannot be effectively controlled.

Utility model content

In view of the present situation of the above-mentioned prior art, the technical problem to be solved by the utility model is to provide a liquid crystal glass full-body with stable feeding, high guiding precision, good pressing effect of the upper and lower glass substrates, precise positioning of glue dispensing, and fast signal transmission. Automatic alignment laminating machine.

The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a liquid crystal glass full-automatic aligning laminating machine, including mechanical components, a motion control system and a visual aligning system, characterized in that the motion control system and the mechanical The components are connected, and the mechanical components are connected with the visual alignment system; the mechanical components include the frame component, the upper glass substrate flipping and feeding component, the lower glass substrate dispensing and feeding component, the alignment and bonding platform component and Discharge assembly; the alignment bonding platform assembly includes a frame, an upper substrate platform, a lower substrate UVW platform, a platform lifting component, a UV irradiation assembly and a pneumatic pressing assembly; a pneumatic pressing assembly is fixed above the frame , a platform lifting component is arranged above the pneumatic pressing assembly, a UV irradiation assembly is arranged on the side of the platform lifting component, a lower substrate UVW platform is arranged above the platform lifting component, and a lower substrate UVW platform is arranged above the lower substrate UVW platform. The upper substrate platform is bonded; the lower glass substrate dispensing and feeding component is arranged on the upstream side of the alignment bonding platform component and is located on the side of the lower substrate UVW platform; the upper glass substrate flipping and sending component is arranged on The upstream side of the position-fitting platform assembly is located on the side of the upper substrate platform; the motion control system includes PLC, input unit, output unit, analog output unit, position control unit and serial communication unit.

Preferably, the lower glass substrate dispensing and feeding assembly includes a first frame, a first transmission roller array, a first feeding manipulator, a first shaping component and a dispensing mechanism, and the first feeding manipulator is arranged at the second On the edge of a frame, the first feeding manipulator sends the lower glass substrate onto the first transmission roller array, the first transmission roller array is fixed on the inside of the first frame, and the first shaping component is arranged on the second On a frame and located inside the first feeding manipulator, the dispensing mechanism is arranged above the middle part of the first frame.

Preferably, the glue dispensing mechanism includes a glue dispensing differential head, a glue dispensing advance and retreat cylinder, a glue dispensing lifting cylinder and a glue dispensing controller.

Preferably, the upper glass substrate inverting and feeding assembly includes a second frame, an inverting table assembly, a second transmission roller array, a second loading manipulator, a second shaping component and an inverting cylinder, and one side of the second frame A second feeding manipulator is arranged on the top, and an overturning cylinder is arranged on the other side of the second frame, an overturning table assembly is fixed above the overturning cylinder, and a second transmission roller array is arranged above the overturning table assembly , the outer side of the second transmission roller array is also provided with a second shaping component.

Preferably, the discharging assembly includes a feeding manipulator and a third array of conveying rollers.

Preferably, the lower substrate UVW platform includes a U guide rail assembly, a V guide rail assembly and a W guide rail assembly.

Preferably, the input unit and output unit are connected to PLC, the analog output unit is connected to PLC, the position control unit is connected to PLC; the serial communication unit is connected to PLC, and the serial communication unit adopts Remote I/O network mode for communication.

Preferably, the PLC is Q series Q02CPU produced by Mitsubishi Corporation.

Preferably, the position control unit adopts a high-performance position control module connected by a high-speed bus model QD75D4.

Preferably, the analog output unit adopts a four-channel digital/analog conversion module modeled as Q64DA.

Compared with the prior art, the utility model has the advantages of: the previous alignment laminating machine has low alignment accuracy, poor dispensing uniformity, signal transmission has hysteresis, and the pressure and pressing time cannot be effectively controlled; The new type has stable feeding, high guiding precision, good lamination effect of upper and lower glass substrates, precise positioning of glue dispensing, and fast signal transmission.

Description of drawings

Fig. 1 is a structural diagram of the utility model;

Fig. 2 is the structural diagram of the frame assembly of the present utility model;

Fig. 3 is the structural diagram of dispensing and feeding components of the lower glass substrate of the present invention;

Fig. 4 is a structural diagram of the upper glass substrate flipping and feeding assembly of the present invention;

Fig. 5 is the structural diagram of the discharging assembly of the present utility model;

Fig. 6 is a structural diagram of the lower substrate UVW platform of the present invention;

Fig. 7 is a side view structural diagram of the dispensing mechanism of the present invention;

Fig. 8 is a right view structural diagram of the dispensing mechanism of the present invention;

Fig. 9 is a left view structural diagram of the dispensing mechanism of the present utility model;

Fig. 10 is a top view structural diagram of the dispensing mechanism of the present invention;

Fig. 11 is the control schematic diagram of the serial communication unit of the present invention;

Fig. 12 is a control schematic diagram of the vision alignment system of the present invention.

detailed description

As shown in Figures 1 to 12, a fully automatic alignment laminating machine for liquid crystal glass includes mechanical components, a motion control system and a visual alignment system; the motion control system is connected to the mechanical components, and the mechanical components are connected to the visual alignment system ;Mechanical components include frame components, upper glass substrate flipping and feeding components, lower glass substrate dispensing and feeding components, alignment and bonding platform components and output components; alignment and bonding platform components are the core components of this machine , the alignment bonding and reinforcement of the upper and lower glass substrates is realized here; the alignment bonding platform components include the frame 1, the upper substrate platform 2, the lower substrate UVW platform 3, the platform lifting part 4, and the UV irradiation assembly 5 and a pneumatic pressing assembly 6; a pneumatic pressing assembly 6 is fixed on the top of the frame 1, a platform lifting part 4 is arranged above the pneumatic pressing assembly 6, and a UV irradiation assembly 5 is arranged on the side of the platform lifting part 4, and the platform lifting The lower substrate UVW platform 3 is arranged above the component 4, and the upper substrate platform 2 is pasted above the lower substrate UVW platform 3; On the side of the substrate UVW platform 3, the lower glass substrate dispensing and feeding assembly includes the first frame 11, the first transmission roller array 7, the first feeding manipulator 8, the first shaping part 9 and the dispensing mechanism 10, the first upper The feeding manipulator 8 is arranged on the edge of the first frame 11, the first loading manipulator 8 sends the lower glass substrate onto the first transmission roller array 7, and the first transmission roller array 7 is fixed inside the first frame 11, the first The shaping part 9 is arranged on the first frame 11 and is located inside the first feeding manipulator 8. The first shaping part 9 can straighten the glass substrate entering the lower glass substrate dispensing and sending it into the assembly to prevent its deviation; The dispensing mechanism 10 is arranged above the middle part of the first frame 11. The dispensing mechanism 10 includes a dispensing differential head 23, a dispensing advance and retreat cylinder 24, a dispensing lifting cylinder 25 and a dispensing controller 26. The current substrate flows into the equipment and passes through the first After a shaping part 9 is reshaped and fixed, the dispensing differential head 23 is controlled by the dispensing advance and retreat cylinder 24 and the dispensing lifting cylinder 25 to reach the dispensing position, and then the pressure and pressurization time during dispensing are controlled by the dispensing controller 26; The purpose of glue mechanism 10 is to receive printed conductive glue and powder-sprayed glass from upstream equipment, apply UV resin glue on the four corners after shaping, and then send it to the lower substrate UVW platform 3; the upper glass substrate is turned over and The feeding assembly is arranged on the upstream side of the alignment and bonding platform assembly and is located on the side of the upper substrate platform 2; the upper glass substrate flipping and feeding assembly includes a second frame 16, a flipping table assembly 17, a second transmission roller array 12, a second Two loading manipulators 13, the second shaping parts 14 and overturning cylinders 15, the second loading manipulator 13 is arranged on one side of the second frame 16, and the other side side of the second frame 16 is provided with overturning cylinders 15, overturning cylinders 15 is fixed with an inverting table assembly 17, the top of the inverting table assembly 17 is provided with a second transmission roller array 12, and the outside of the second transmission roller array 12 is also provided with a second shaping member 14, and the upper glass substrate is overturned. The purpose of the transfer and feeding component is to receive the glass printed with sealant from the upstream equipment, and after shaping, it is turned over by the turning table component 17, so that the side printed with ITO graphics is opposite to the lower substrate, and then sent to the upper substrate platform 2 top; the discharge assembly includes the unloading manipulator 19 and the third transmission roller array 18, the purpose of the discharge assembly is to use the unloading manipulator 19 to take out the glass that has been bonded on the alignment platform, and then transfer it to the downstream equipment; bottom Substrate UVW platform 3 includes U guide rail assembly 20, V guide rail assembly 21 and W guide rail assembly 22. U guide rail assembly 20, V guide rail assembly 21 and W guide rail assembly 22 are all driven by high-resolution AC servo motors and driven by high-precision screw nuts. , and the movement does not interfere with each other, ensuring the realization of micron-level positioning; the motion control system includes PLC, input unit, output unit, analog output unit, position control unit and serial communication unit, the input unit and output unit are connected to the PLC, and the input unit The PLC can receive external signals, the output unit can output the signal in the PLC, and then control the external execution parts; the analog output unit is connected with the PLC, and the analog output unit can convert the signal in the PLC into an analog signal, and then control the electric Control the operation of proportional regulating valve and brushless motor; the position control unit is connected with PLC, and the position control unit can transmit the displacement signal in PLC to the servo motor and stepping motor separately, so as to realize the specialization of control and prevent the signal interaction with other institutions Interference; the serial communication unit is connected to the PLC, and the serial communication unit uses the remote I/O network mode to communicate, which greatly shortens the link scanning time; the visual alignment system includes a light source, an optical system and a camera, and the light source illuminates the measured object. Then the light is received by the camera through the refraction of the optical system, the camera is connected to the image acquisition card, the image acquisition card transmits the visual data to the PLC through the serial communication unit, and the PLC processes the image, and then judges and controls it; the PLC uses The Q series Q02CPU produced by Mitsubishi Corporation is a high-performance PLC that can be used in various medium and complex machinery to realize general automatic control process control occasions. The processing speed of instructions can reach 34ns, the maximum number of I/O points can reach 4096 points, the maximum capacity of program memory can reach 252K steps, and it can reach 32M steps after using the expanded memory. Q02CPU can realize the expansion of PLC function by inserting various modules on the base board. Inserting the I/O module can increase the I/O points of the PLC, and inserting the positioning module can make the PLC generate pulse signals to drive the servo motor to move. Different expansion modules bring different functions to the PLC; the position control unit adopts two position control units QD75D4 matched with Q series PLC; QD75D4 is a high-performance position control module connected by Mitsubishi SSCNET high-speed bus, which can 1MHz pulse frequency, can drive four-axis movement at the same time, the fastest start of positioning movement is only 6ms, and the maximum movement distance is 10m; the position control unit can save the latest output error or warning information, and provides a complete and detailed classification of error and warning records. It is convenient for troubleshooting and user maintenance; the analog output unit chooses two pieces of Q64DA. Q64DA is a four-channel digital/analog conversion module, each channel can choose voltage input or current input, the conversion can be completed within 80μs at the fastest, and the accuracy of the conversion process is ±0.1%. Its resolution mode can be changed according to the application and the digital value resolution can be selected as 1/4000, 1/12000 or 1/16000.

The alignment bonding process of the upper and lower glass substrates has very high requirements on precision. Usually, the alignment error should be controlled within 5 μm, and the alignment accuracy will have a direct impact on the quality of the product. If there is an error in the alignment, it may cause the circuits printed on the upper and lower substrate surfaces to fail to overlap, resulting in a short circuit, thereby forming a waste product. The previous alignment laminating machine has low alignment accuracy, poor dispensing uniformity, signal transmission lag, and the pressure and pressing time cannot be effectively controlled. ; The mechanical assembly of the utility model has been improved on the basis of the prior art, the feeding of the glass substrate is more stable, and the guiding precision is high, the pressing effect of the upper and lower glass substrates is good, and the dispensing process adopts machine vision alignment The way of precise positioning; the serial communication unit in the PLC transmits signals faster and has high execution efficiency.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that it still The technical solutions recorded in the foregoing embodiments may be modified, or some of the technical features thereof may be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and spirit of the technical solutions of the various embodiments of the present invention. scope.

Claims (10)

1. A liquid crystal glass full-automatic aligning and laminating machine, comprising a mechanical assembly, a motion control system and a visual alignment system, characterized in that the motion control system is connected to the mechanical assembly, and the mechanical assembly is connected to the visual alignment The system is connected; the mechanical components include a frame component, an upper glass substrate flipping and feeding component, a lower glass substrate dispensing and feeding component, an alignment and bonding platform component and a discharge component; the alignment and bonding platform component It includes a frame, an upper substrate platform, a lower substrate UVW platform, a platform lifting component, a UV irradiation component and a pneumatic pressing component; a pneumatic pressing component is fixed above the frame, and a platform is arranged above the pneumatic pressing component The lifting part, the side of the platform lifting part is provided with a UV irradiation assembly, the upper part of the platform lifting part is provided with a lower substrate UVW platform, and an upper substrate platform is attached above the lower substrate UVW platform; the lower glass substrate The glue dispensing and feeding component is arranged on the upstream side of the alignment bonding platform assembly and is located on the side of the lower substrate UVW platform; the upper glass substrate flipping and feeding assembly is arranged on the upstream side of the alignment bonding platform assembly and is located on the upper The side of the substrate platform; the motion control system includes a PLC, an input unit, an output unit, an analog output unit, a position control unit and a serial communication unit. 2. A liquid crystal glass fully automatic alignment laminating machine according to claim 1, wherein the lower glass substrate dispensing and feeding assembly comprises a first frame, a first transmission roller array, a first upper A material manipulator, a first shaping component and a dispensing mechanism, the first material feeding manipulator is arranged on the edge of the first frame, and the first material feeding manipulator sends the lower glass substrate to the first transmission roller array, so The first transmission roller array is fixed inside the first frame, the first shaping component is arranged on the first frame and inside the first feeding manipulator, and the dispensing mechanism is arranged above the middle of the first frame. 3. A liquid crystal glass automatic alignment laminating machine according to claim 2, wherein the dispensing mechanism includes a dispensing differential head, a dispensing forward and backward cylinder, a dispensing lifting cylinder and a dispensing controller . 4. A liquid crystal glass fully automatic alignment laminating machine according to claim 1, characterized in that, the upper glass substrate flipping and feeding assembly comprises a second frame, a flipping table assembly, a second transmission roller array, The second feeding manipulator, the second shaping part and the overturning cylinder, the second feeding manipulator is arranged above one side of the second frame, the other side of the second frame is provided with an overturning cylinder, and the overturning cylinder An overturning platform assembly is fixed above the overturning platform assembly, a second transmission roller array is arranged above the overturning platform assembly, and a second shaping component is also arranged on the outside of the second transmission roller array. 5 . The fully automatic alignment laminating machine for liquid crystal glass according to claim 1 , wherein the discharge assembly includes a blanking manipulator and a third transmission roller array. 5 . 6. A liquid crystal glass fully automatic alignment laminating machine according to claim 1, characterized in that, the lower substrate UVW platform comprises a U guide rail assembly, a V guide rail assembly and a W guide rail assembly. 7. A liquid crystal glass full-automatic aligning and laminating machine according to claim 1, wherein the input unit and the output unit are connected to the PLC, the analog output unit is connected to the PLC, and the position control The unit is connected to the PLC; the serial communication unit is connected to the PLC, and the serial communication unit uses a remote I/O network mode for communication. 8. A kind of liquid crystal glass full-automatic alignment bonding machine according to claim 7, is characterized in that, what described PLC selects for use is the Q series Q02CPU that Mitsubishi Company produces. 9. A liquid crystal glass automatic alignment laminating machine according to claim 7, wherein the position control unit adopts a high-performance position control module connected by a high-speed bus model QD75D4. 10. A liquid crystal glass fully automatic alignment laminating machine according to claim 7, characterized in that the analog output unit adopts a four-channel digital/analog conversion module modeled as Q64DA.