CN113419365A

CN113419365A - Automatic device for laminating liquid glue and working method thereof

Info

Publication number: CN113419365A
Application number: CN202110816150.XA
Authority: CN
Inventors: 黄灵林; 王海峰; 宋卓
Original assignee: Shenzhen Yixian Technology Co ltd
Current assignee: Shenzhen Yixian Technology Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2021-09-21

Abstract

The invention relates to an automatic device for laminating liquid glue and a working method thereof, comprising a working table and a sliding table matched with it; The side rail frame, one end of the rotating shaft is connected to the rotating motor, the telescopic mechanism is installed on the motherboard, and the telescopic rod of the telescopic mechanism is connected to the suction plate; the two sides of the workbench are provided with rail grooves, the rail frame is connected with the rail groove, and the sliding table can be moved along the The track slot slides back and forth. The automatic device of the invention can replace the manual lamination operation, realize automatic operation, and at the same time cooperate with the transfer trolley, greatly improve the lamination efficiency of the glass cover plate and the LCM, and also greatly improve the lamination accuracy rate and improve the Yield rate.

Description

Automatic device for laminating liquid glue and working method thereof

Technical Field

The invention relates to an automatic device for laminating liquid glue and a working method thereof, and belongs to the technical field of full lamination of display screens.

Background

The full-lamination technology is to use water glue or optical glue to seamlessly and completely adhere the display screen and the touch screen or the glass cover plate together. The technology is widely applied to small and medium-sized display terminal products such as mobile phones, flat plates, vehicles and the like. Along with the gradual increase of the size of display terminal products, the demands of electronic terminal products such as business displays, education, meetings and the like on full lamination are increasing day by day.

Chinese patent document CN208689311U discloses a module laminating machine, which includes: the frame is a platform; the TP feeding mechanism and the LCM feeding mechanism are used for providing TP and LCM materials for pre-compaction; the automatic alignment platform is arranged on the table board of the rack, is tightly attached to the end part of the conveying rail of the TP feeding mechanism and is used for pre-attaching the TP and the LCM; and the plurality of vacuum laminating mechanisms are used for vacuum laminating the TP and the LCM, which are pre-laminated, of the automatic alignment platform inside the vacuum laminating mechanisms. The module laminating machine can replace manual laminating, has high production efficiency and high yield when TP and LCM are laminated, can obviously reduce the labor cost and the manufacturing cost, adopts a vacuum laminating technology, has good laminating effect, and can increase the touch sensitivity of a mobile phone.

Taking the lamination of the touch screen and the display module as an example, the existing full lamination process mainly comprises the following three steps: (1) glue coating: coating glue on the touch screen in a certain mode; (2) aligning and pre-curing: aligning and pressing the touch screen and the display module, and performing pre-curing after the glue is leveled, wherein the pre-curing has the function of keeping the relative positions of the touch screen and the display module unchanged; (3) the curing: and completely curing the glue between the touch screen and the display module to finish the manufacture of the laminated product.

In the alignment and pre-curing process in the step (2), the manual bonding has the phenomena of difficult alignment, complex operation, bonding precision, low yield, low efficiency and the like, and particularly, the bonding effect and the glue layer thickness of the product can not be ensured for the bonding of large-size LCM and the like. During product handling or placement, product levelness needs to be tightly controlled in order to control the thickness uniformity and flow uniformity of the fitting glue.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an automatic device for laminating liquid glue, the automatic device can automatically grab a glass cover plate, automatically move to the position above an LCM and realize the automatic lamination of the glass cover plate, the whole process is completed by automatic operation, manual intervention is not needed, time and labor are saved, and the efficiency is high.

The invention further provides a working method of the automatic device for laminating the liquid glue.

The technical scheme of the invention is as follows:

an automatic device for attaching liquid glue comprises a workbench and a sliding table matched with the workbench;

the sliding table comprises a track frame, a mother board, a suction plate and a telescopic mechanism, the mother board is connected with the track frame on two sides through a rotating shaft, one end of the rotating shaft is connected with a rotating motor, the telescopic mechanism is installed on the mother board, and a telescopic rod of the telescopic mechanism is connected with the suction plate;

the two sides of the working table are provided with track grooves, the track frame is connected with the track grooves, and the sliding table can slide back and forth along the track grooves.

Preferably, the rotating motor drives the rotating shaft to rotate by-180 degrees, so that the mother board is turned over.

Preferably, a circular hole channel is arranged on the central axis of the motherboard, and the rotating shaft penetrates through the circular hole channel and is fixedly connected with the motherboard.

Preferably, the workstation is cuboid frame construction, including work preparation district and laminating workspace two parts, the track groove that the sliding table can follow both sides slides to laminating workspace from work preparation district. The benefit of this design is, adopts the setting of two districts, transports the platform truck and can get into the laminating workspace in advance, adsorbs preparation work such as glass apron, dyestripping and can accomplish in the work preparation district, avoids interfering with transporting the platform truck, can improve the work efficiency of laminating simultaneously.

Preferably, the track frame is a C-shaped frame, and two ends of the C-shaped frame extend into the track grooves. The design has the advantage that the stability of the sliding table sliding along the rail groove on the working table can be ensured by adopting the C-shaped frame.

Preferably, a sliding motor is arranged in the workbench, a rotating rack is arranged in the track groove, the sliding motor is connected with the rotating rack through a gear, and teeth are arranged on the bottom surface of the track frame and meshed with the rotating rack.

Preferably, the mother board is provided with four telescopic mechanisms, and the four telescopic mechanisms are symmetrically arranged along the center of the mother board.

Preferably, the front end of the suction plate is hinged with the telescopic rods of the two telescopic mechanisms, and the rear end of the suction plate is slidably hinged with the telescopic rods of the other two telescopic mechanisms.

Preferably, two ends of the suction plate are provided with four hanging lugs, and the four hanging lugs are connected with the telescopic rod through pins.

Preferably, the honeycomb holes are uniformly distributed on the suction plate, the suction plate is connected with a vacuum pumping device, and the honeycomb holes generate negative pressure during the operation of the suction plate. The design has the advantage that the glass cover plate is adsorbed on the suction plate by utilizing the pressure difference generated by the negative pressure in the honeycomb holes, so that the glass cover plate is moved on the workbench.

Preferably, the telescopic stroke of the telescopic mechanism is 200mm at most.

Preferably, the telescopic mechanism comprises a telescopic motor, an electric push rod or an electric cylinder.

Preferably, the automation device further comprises a PLC controller, and the rotating motor, the telescopic mechanism and the sliding motor are all connected and controlled by the PLC controller.

The working method of the automatic device for applying the liquid glue comprises the following steps:

1) when the operation is started, the sliding table is positioned in a working preparation area of the workbench, and the surface of the suction plate faces upwards; placing the glass cover plate to be attached on the surface of the suction plate with the attaching surface facing upwards and tearing off the protective film;

2) starting the vacuumizing equipment to enable the suction plate to firmly adsorb the glass cover plate; meanwhile, the transfer trolley displaces the LCM subjected to glue dispensing to a bonding working area of the workbench;

3) starting a rotating motor to enable the rotating shaft to rotate downwards clockwise by 180 degrees, and at the moment, the suction plate and the glass cover plate are in a downward horizontal state;

4) starting the sliding motor to enable the sliding table to move to the laminating working area at a constant speed, wherein the glass cover plate is positioned right above the LCM;

5) the two telescopic mechanisms at the front end of the suction plate extend by 10-30 mm in advance, then the four telescopic mechanisms synchronously extend until the edge of the front end of the glass cover plate is contacted with the upper surface of the glue layer, and then the two telescopic mechanisms at the rear end synchronously extend, so that the glass cover plate is gradually contacted with the glue layer from front to back;

6) after the laminating is finished, the vacuumizing equipment is closed, the suction plate is separated from the glass cover plate, then the four telescopic mechanisms retract synchronously, and the suction plate rises upwards;

7) and the sliding motor is restarted to enable the sliding table to move to an operation preparation area at a constant speed, and finally the rotating motor is restarted to enable the rotating shaft to rotate upwards in the anticlockwise direction by 180 degrees, so that the suction plate is in an upward horizontal state to prepare for next laminating operation.

The invention has the technical characteristics and beneficial effects that:

1. the automatic device can replace manual laminating operation, realizes automatic operation, and is matched with the transfer trolley to operate, so that the laminating efficiency of the glass cover plate and the LCM is greatly improved, the laminating accuracy is greatly improved, and the yield is improved.

2. According to the invention, all the rotating actions of the mother board and the suction board are completed in the operation preparation area of the workbench, so that the passing efficiency of the transfer trolley can be improved, and the mutual interference between the laminating device and the transfer trolley can be avoided.

3. The automatic device is scientific in design, reasonable in structure and convenient to operate, has a remarkable advantage effect on automatic operation fitting, and is worthy of popularization and application.

Drawings

FIG. 1 is a schematic view of a conventional frame pasting process;

FIG. 2 is a schematic view of a current full-lamination process;

FIG. 3 is a front view of the automated device of the present invention;

FIG. 4 is a schematic view of the automated apparatus of the present invention in cooperation with a transfer trolley;

FIG. 5 is a schematic view showing the operation of reversing the slide table according to the present invention;

FIG. 6 is a schematic view of the slide table cooperating with the transfer carriage during reverse operation in accordance with the present invention;

FIG. 7 is a schematic view of the slide table of the present invention moving to a working area;

FIG. 8 is a schematic view of the present invention with the slide table moved to the work area to engage the transfer trolley;

FIG. 9 is a schematic view showing the lowering operation of the slide table according to the present invention;

FIG. 10 is a schematic view of the sliding table lowering the glass cover plate to the transfer trolley according to the present invention;

FIG. 11 is a schematic view of the present invention showing the sliding table in a fully engaged state when it moves to the working area;

FIG. 12 is a schematic view of the sliding table of the present invention in a working state after the completion of the bonding;

FIG. 13 is a schematic view showing the operation state of the retractable motor after the sliding table is attached;

FIG. 14 is an enlarged view of portion A of FIG. 13;

FIG. 15 is an enlarged view of portion B of FIG. 13;

FIG. 16 is a schematic view of the structure of the work table of the present invention;

FIG. 17 is a schematic view of the track frame of the present invention;

FIG. 18 is a schematic structural diagram of a motherboard according to the present invention;

FIG. 19 is a perspective view of the suction plate of the present invention, FIG. 1;

FIG. 20 is a perspective view of a suction plate of the present invention, FIG. 2;

FIG. 21 is a schematic view of the structure of the telescopic motor of the present invention;

in the figure: 1-a workbench, 101-a track groove, 2-a sliding table, 3-a transfer trolley, 4-a track frame, 401-a mounting hole, 5-a telescopic motor, 501-a connecting hole, 6-a rotating shaft, 7-a mother board, 701-a circular hole channel, 8-a suction plate and 801-a hanging lug.

Detailed Description

The present invention will be further described by way of examples, but not limited thereto, with reference to the accompanying drawings.

Example 1:

as shown in fig. 3-21, the present embodiment provides an automatic device for applying liquid glue, which includes a working table 1 and a sliding table 2 cooperating therewith;

the sliding table 2 comprises a track frame 4, a mother board 7, a suction plate 8 and a telescopic mechanism, wherein the mother board 7 is connected with the track frame 4 at two sides through a rotating shaft 6, one end of the rotating shaft 6 is connected with a rotating motor (not shown in the figure), the telescopic mechanism is arranged on the mother board 7, and a telescopic rod of the telescopic mechanism is connected with the suction plate 8;

the two sides of the working platform 1 are provided with track grooves 101, the track frame 4 is connected with the track grooves 101, and the sliding platform 2 can slide back and forth along the track grooves 101.

Specifically, the workbench 1 is a rectangular parallelepiped frame structure, is made of stainless steel, and includes a work preparation area (right part of fig. 3) and a bonding work area (left part of fig. 3), and the sliding table 2 can slide from the work preparation area to the bonding work area along the rail grooves 101 on both sides. Adopt two district settings, transport platform truck 3 can get into the laminating workspace in advance, adsorb glass apron, tear preparation such as membrane and can accomplish in the work preparation district, avoid interfering with the transport platform truck, can improve the work efficiency of laminating simultaneously.

The motherboard 7 is a rectangular flat plate made of stainless steel, a circular hole passage 701 is arranged on the central axis of the motherboard 7, and the rotating shaft 6 penetrates through the circular hole passage 701 and is fixedly connected with the motherboard 7. The central position of track frame 4 is equipped with mounting hole 401, and the both ends of pivot 6 are installed in mounting hole 401 through the bearing, and the rotating electrical machines is connected in the transmission of one end of pivot. The rotating motor drives the rotating shaft to rotate by-180 degrees, so that the mother board 7 is turned over. When the rotating shaft rotates clockwise, the mother board turns from top to bottom, and when the rotating shaft rotates anticlockwise, the mother board turns from bottom to top. The rotating motor is a servo motor, and accurate rotation can be achieved.

The track frame 4 is a C-shaped frame, and both ends of the C-shaped frame extend into the track grooves 101. Adopt C type frame, can encircle the track and stretch into in the track groove 101, the track can play the effect of support track frame, guarantees the gliding stability of sliding table 2 along track groove 101 at the workstation.

A sliding motor (not shown in the figure) is arranged in the workbench 1, a rotating rack is arranged in the track groove 101, the sliding motor is connected with the rotating rack through a gear, and teeth are arranged on the bottom surface of the track frame 4 and are meshed with the rotating rack. When the sliding motor works, the rotating rack is driven to rotate, so that the track frame 4 is driven to move along the track groove 101.

The mother board 7 is provided with four telescopic mechanisms which are symmetrically arranged along the center of the mother board. In this embodiment, telescopic motor 5 is selected for the telescopic mechanism, and telescopic motor 5's cylinder body passes through the bolt and installs on motherboard 7, and the telescopic link runs through behind the motherboard and is connected with four hangers 801 on suction plate 8 through the round pin axle. The maximum telescopic stroke of the telescopic motor 5 is 200 mm.

The front end of the suction plate 8 is hinged with the telescopic rods of the two telescopic mechanisms, as shown in fig. 15, the rear end of the suction plate is slidably hinged with the telescopic rods of the other two telescopic mechanisms, as shown in fig. 14, and the hinged hole has a certain movement amount.

Honeycomb holes are uniformly distributed on the suction plate 8, the suction plate 8 is connected with a vacuum pumping device, and the honeycomb holes generate negative pressure during the operation of the suction plate. The glass cover plate is adsorbed on the suction plate 8 by using the pressure difference generated by the negative pressure in the honeycomb holes, so that the glass cover plate is moved on the workbench. The suction plate is made of alloy aluminum, adopts an aluminum honeycomb structure, and has the advantages of light weight, high strength, high rigidity, bending resistance, flexibility resistance and the like of aluminum honeycombs, as well as high flatness, small flexibility value, high adsorption force, scraping resistance, wear resistance and the like. The maximum size of the working surface of the suction plate can be 2300mm multiplied by 3250mm, and the requirement of the liquid glue jointing operation of the LCM with the current mainstream size and the glass cover plate is met. The working surface of the suction plate is provided with small holes with the diameter phi of 1mm and the equal interval of 10mm, and the suction plate can be connected with external vacuum-pumping equipment and used for adsorbing the glass cover plate and can adapt to different vacuum degrees according to different attached products.

The automatic device also comprises a PLC controller, and the rotating motor, the telescopic motor and the sliding motor are all connected and controlled by the PLC controller. According to the built-in program of the PLC controller, automatic and intelligent operation is realized.

Example 2:

an automatic device for applying liquid glue is structurally as described in embodiment 1, and is different in that: the telescopic mechanism adopts an electric push rod.

Example 3:

an automatic device for applying liquid glue is structurally as described in embodiment 1, and is different in that: the telescopic mechanism adopts an electric cylinder.

Example 4:

a working method of an automatic device for liquid glue application utilizes the automatic device described in embodiment 1, and the working process is as follows:

1) when the operation is started, the sliding table 2 is positioned in a working preparation area of the workbench 1, and the surface of the suction plate 8 faces upwards; placing the glass cover plate to be attached on the surface of the suction plate 8 with the attaching surface facing upwards and tearing off the protective film;

when placing, the suction plate is placed at the corresponding position of the suction plate according to the size of the attached product, so that the subsequent attachment dislocation is prevented.

2) Starting the vacuumizing equipment to enable the suction plate 8 to firmly adsorb the glass cover plate; meanwhile, the transfer trolley 3 displaces the LCM subjected to glue dispensing to a bonding working area of the workbench 1;

3) starting a rotating motor to enable the rotating shaft 6 to rotate downwards clockwise by 180 degrees, and at the moment, the suction plate 8 and the glass cover plate are in a downward horizontal state;

4) starting the sliding motor to enable the sliding table 2 to move to the fitting working area at a constant speed, wherein the glass cover plate is positioned right above the LCM;

5) two telescopic motors at the front end of the suction plate 8 extend by 10-30 mm in advance, then the four telescopic motors synchronously extend until the edge of the front end of the glass cover plate is contacted with the upper surface of the glue layer, and then the two telescopic motors at the rear end synchronously extend, so that the glass cover plate is gradually contacted with the glue layer from front to back;

6) after the lamination is finished, the vacuumizing equipment is closed, the suction plate 8 is separated from the glass cover plate, then the four telescopic motors 5 retract synchronously, and the suction plate 8 rises upwards;

7) the sliding motor starts the operation again, makes the sliding table 2 move to the operation preparation area at the uniform velocity, and the rotating motor starts again at last, makes the rotating shaft 6 rotate 180 degrees anticlockwise upwards, and the suction plate 8 is in the horizontal state upwards at this moment, prepares for the next laminating operation.

The above description is only for the specific embodiments of the present invention, and the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.

Claims

1. an automatic device for liquid glue bonding, is characterized in that, comprises workbench and the sliding table that cooperates with it;

The sliding table includes a rail frame, a mother board, a suction board and a telescopic mechanism. The mother board is connected to the rail frames on both sides through a rotating shaft. One end of the rotating shaft is connected to a rotating motor.

Track grooves are arranged on both sides of the worktable, the track frame is connected with the track groove, and the sliding table can slide back and forth along the track groove.

2. The automatic device for laminating with liquid glue according to claim 1, wherein the worktable is a cuboid frame structure, comprising two parts: a work preparation area and a lamination work area, and the sliding table can be along both sides The track slot slides from the work preparation area to the fit work area.

3 . The automatic device for laminating with liquid glue according to claim 1 , wherein the rail frame is a C-shaped frame, and both ends of the C-shaped frame extend into the rail groove. 4 .

4. The automatic device for laminating liquid glue according to claim 1, wherein a sliding motor is arranged in the worktable, a rotating rack is arranged in the track groove, and the sliding motor passes through the gear and the rotating rack. The bottom surface of the rail frame is provided with teeth, and the teeth are engaged with the rotating rack.

5 . The automatic device for laminating with liquid glue according to claim 1 , wherein four telescopic mechanisms are provided on the motherboard, and the four telescopic mechanisms are symmetrically arranged along the center of the motherboard. 6 .

6 . The automatic device for laminating with liquid glue according to claim 5 , wherein the front end of the suction plate is hinged with the telescopic rods of the two telescopic mechanisms, and the rear end of the suction plate is connected with the other two telescopic mechanisms. 7 . The telescopic rod sliding hinge.

7. The automatic device for laminating liquid glue according to claim 1, characterized in that, the suction plate is evenly provided with honeycomb holes, the suction plate is connected to a vacuuming device, and the honeycomb holes are generated during the suction plate operation. negative pressure.

8 . The automatic device for laminating with liquid glue according to claim 1 , wherein the telescopic mechanism comprises a telescopic motor, an electric push rod or an electric cylinder. 9 .

9 . The automatic device for laminating liquid glue according to claim 4 , wherein the automatic device further comprises a PLC controller, and the rotary motor, the telescopic mechanism and the sliding motor are all connected and controlled by the PLC controller. 10 .

10. A working method for the automatic device for liquid glue bonding as described in any one of claims 1-9, characterized in that, comprising the following steps:

1) When starting the operation, the sliding table is located in the work preparation area of the workbench, and the plate surface of the suction plate is facing up; place the glass cover plate to be laminated on the surface of the suction plate and tear it off. protective film;

2) Start the vacuuming equipment to make the suction plate firmly adsorb the glass cover; at the same time, the transfer trolley will move the LCM after dispensing to the working area of the workbench;

3) Start the rotating motor to make the shaft rotate 180° clockwise downward, at this time the suction plate and the glass cover plate are in a downward horizontal state;

4) The sliding motor starts to start the operation, so that the sliding table moves to the fitting work area at a constant speed, and the glass cover plate is located directly above the LCM at this time;

5) The two telescopic mechanisms at the front end of the suction plate extend 10-30mm in advance, and then the four telescopic mechanisms extend synchronously until the front edge of the glass cover is in contact with the upper surface of the glue layer, and then the two telescopic mechanisms at the rear end are synchronized Extend, so that the glass cover is gradually contacted with the glue layer from front to back;

6) After the lamination is completed, turn off the vacuuming equipment to separate the suction plate from the glass cover, and then the four telescopic mechanisms retract synchronously, and the suction plate rises upward;

7) The sliding motor starts the operation again, so that the sliding table moves to the operation preparation area at a constant speed, and finally the rotating motor starts again to make the rotating shaft rotate 180° counterclockwise upwards. At this time, the suction plate is in an upward horizontal state, ready for the next fitting. Industry.