CN215678966U

CN215678966U - Vacuum laminating device

Info

Publication number: CN215678966U
Application number: CN202122100357.5U
Authority: CN
Inventors: 邵文祥; 刘志伟
Original assignee: China Display Optoelectronics Technology Huizhou Co Ltd
Current assignee: China Display Optoelectronics Technology Huizhou Co Ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-01-28
Anticipated expiration: 2031-09-01

Abstract

The utility model discloses a vacuum laminating device, which comprises a vacuum cavity, wherein an accommodating space is formed inside the vacuum cavity and is used for accommodating a piece to be laminated; the visual shooting assembly is arranged on one side of the piece to be attached and is used for shooting, identifying and positioning the piece to be attached; and the infrared light source is arranged in the vacuum cavity, and the light emitting direction of the to-be-attached piece by the infrared light source is opposite to the photographing direction of the to-be-attached piece by the visual photographing component. The utility model provides a vacuum laminating device, which solves the technical problem that the existing vacuum laminating machine is easy to deviate during laminating.

Description

Vacuum laminating device

Technical Field

The utility model relates to the field of vacuum laminating equipment, in particular to a vacuum laminating device.

Background

Currently, in a process of manufacturing a small-sized Liquid Crystal Display product such as a Liquid Crystal Display (LCD) mobile phone panel, a CG (Cover glass) and an LCD are usually attached together by an Optical Clear Adhesive (OCA).

During the lamination, generally, after the product is photographed and identified outside the vacuum box, the product is aligned and laminated in the vacuum box. However, the conventional vacuum laminating machine is easily interfered by an anti-static line during photographing, and adverse effects are caused on photographing identification, so that the CG and the LCD are deviated during laminating.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a vacuum laminating device, and aims to solve the technical problem that an existing vacuum laminating machine is prone to deviation during laminating.

In order to achieve the above object, an embodiment of the present invention provides a vacuum bonding apparatus, including:

a vacuum chamber, wherein the piece to be attached is accommodated in the vacuum chamber;

the visual shooting assembly is arranged on one side of the piece to be attached and is used for shooting, identifying and positioning the piece to be attached; and

infrared light source, infrared light source locates in the vacuum chamber, infrared light source is to treat the light-emitting direction of laminating piece with the vision subassembly of shooing is right treat the opposite direction of shooing of laminating piece.

Optionally, in an embodiment of the present invention, a bonding table is disposed in the vacuum chamber, an installation groove is formed in a surface of the bonding table facing the piece to be bonded, and the infrared light source is accommodated in the installation groove and does not protrude from the installation groove.

Optionally, in an embodiment of the present invention, a plurality of infrared light sources are provided, and the plurality of infrared light sources are arranged along the applying table toward the surface array of the to-be-applied member.

Optionally, in an embodiment of the present invention, the vacuum chamber is provided with a mounting hole, an electrical connector is hermetically connected in the mounting hole, and one end of the electrical connector is electrically connected to the infrared light source, so as to electrically connect the infrared light source to an external power supply.

Optionally, in an embodiment of the present invention, the electrical connector is an aviation plug.

Optionally, in an embodiment of the present invention, the vacuum attaching device further includes an anti-static pad, the anti-static pad is made of a transparent material and is disposed on a surface of the attaching table facing the to-be-attached member, and the to-be-attached member is placed on the anti-static pad.

Optionally, in an embodiment of the present invention, the anti-static gasket is a transparent acrylic sheet.

Optionally, in an embodiment of the present invention, the vacuum bonding apparatus further includes a transparent soft pad, and the transparent soft pad is disposed on a side of the anti-static pad plate away from the bonding table.

Optionally, in an embodiment of the present invention, the vacuum attaching device further includes an adhesive pad exposed from the transparent soft pad to adhere the member to be attached.

Optionally, in an embodiment of the present invention, the vacuum laminating apparatus further includes a support rod connected to the adhesive pad, the laminating table, the anti-static backing plate and the transparent cushion are respectively provided with an avoiding hole for the support rod to pass through, and the support rod is movably disposed in the avoiding hole to adjust a vertical distance between the adhesive pad and the bottom surface of the vacuum chamber.

Compared with the prior art, in one technical scheme provided by the utility model, the piece to be attached can be fixed in the vacuum cavity through the arranged vacuum cavity, the visual shooting assembly can be used for scanning and shooting identification points on the piece to be attached fixed in the vacuum cavity, an image Processor (PC) is used for collecting image data to perform image processing, position calculation is carried out to judge the actual position of the piece to be attached, the actual offset value of the piece to be attached is calculated by comparing the actual offset value with the preset reference position, and the movement of the vacuum cavity is controlled, so that a product moves to the preset reference position, and the attachment of the piece to be attached is realized. Moreover, infrared source and vision subassembly setting of shooing are in the both sides of treating the fitting, utilize infrared source from the top to treat the fitting and polish, can avoid treating the interference of the subassembly of shooing of anti-static line pair vision of fitting, more be favorable to the vision subassembly of shooing to treat the location of shooing of fitting to improve the accuracy of treating the fitting location, avoid treating that the fitting takes place the skew when the laminating, thereby guarantee good laminating effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of a vacuum bonding apparatus according to the present invention;

FIG. 2 is an exploded view of an embodiment of a vacuum bonding apparatus according to the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Vacuum chamber	110	Accommodating space
200	Laminating platform	210	Mounting groove
				120	Mounting hole	300	Infrared light source
400	Anti-static pad	500	Transparent soft cushion
				600	Adhesive pad	700	Support rod

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be obtained by a person skilled in the art based on the embodiments of the present invention without any inventive step belong to the scope of the embodiments of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions such as references to "first", "second", and the like in the embodiments of the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the embodiments of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected", "fixed", and the like are to be understood broadly, for example, "fixed" may be a fixed connection, a detachable connection, or an integral body; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of the technical solutions should not be considered to exist, and is not within the protection scope of the embodiments of the present invention.

Electronic products such as mobile phones and IPADs are mobile terminals frequently used in daily life of people, and a Liquid Crystal Display panel is adopted, in the production process of the small-sized Liquid Crystal Display terminal, a CG (cover plate) and an LCD (Liquid Crystal Display) need to be attached, and the CG attachment process flow is CG feeding → CG tearing (CG incoming material positive and negative area water film) → CG covering film → CG wiping and cleaning → soft-to-hard attachment (CG and OCA (optical Clear Adhesive) attachment) → hard-to-hard attachment (CG and LCD attachment) → camera hole film attachment → defoaming → electrical inspection → appearance inspection → visual inspection. In the hard-to-hard laminating station, the LCD and the CG are laminated, and a single-sheet laminating mode in a vacuum cavity is generally adopted.

The laminating platform of current vacuum chamber is the aluminum alloy material, and the line of preventing static on the LCD of part model can be caught visual image and produce the interference, leads to CG and LCD laminating off normal for the laminating defective rate is on the high side.

Therefore, the embodiment of the utility model provides the vacuum laminating device, which utilizes the infrared light source to eliminate the interference of the anti-static electricity to the grabbing of the visual image, improves the accuracy of the CG and the LCD positioning and avoids the lamination deviation of the CG and the LCD.

The vacuum laminating device provided by the embodiment of the utility model can be used for laminating CG and an LCD, and can also be used for laminating other display panels with anti-static wires.

In order to better understand the technical scheme, the technical scheme is described in detail below with reference to the accompanying drawings.

As shown in fig. 1 and 2, a vacuum bonding apparatus according to an embodiment of the present invention includes:

the vacuum chamber 100, wherein a receiving space 110 is formed inside the vacuum chamber 100, and the receiving space 110 is used for receiving a piece to be bonded;

the visual shooting assembly (not shown) is arranged on one side of the piece to be attached and is used for shooting, identifying and positioning the piece to be attached; and

the infrared light source 300, the infrared light source 300 is disposed inside the vacuum chamber 100, and the light emitting direction of the to-be-bonded member of the infrared light source 300 is opposite to the photographing direction of the to-be-bonded member of the visual photographing assembly.

In the technical scheme adopted in this embodiment, the to-be-bonded piece can be fixed in the accommodating space 110 through the vacuum cavity 100, the visual photographing component can be used for scanning and photographing the identification point on the to-be-bonded piece, image data is collected through an image processing machine (PC) for image processing, the actual position of the to-be-bonded piece is judged through position calculation, the actual offset value of the to-be-bonded piece is calculated through comparison with the previously set reference position, and the movement of the vacuum cavity 100 is controlled, so that the product moves to the previously set reference position, and the positioning of the to-be-bonded piece is realized. Moreover, infrared source 300 and the relative both sides of laminating piece are being treated in the subassembly setting of shooing of vision, utilize infrared source 300 from the top to treat the laminating piece and polish, can avoid treating the interference of the subassembly of shooing of antistatic line to the vision of laminating piece, more be favorable to the vision subassembly of shooing to treat the location of shooing of laminating piece to improve the accuracy of treating the laminating piece location, avoid treating that the laminating piece takes place the skew when the laminating, guarantee good laminating effect. It should be noted that the member to be attached in this embodiment may be an LCD.

It should be noted that, in this embodiment, the vacuum chamber 100 and the upper cavity can be fastened together to form a sealed cavity, an installation space is formed in the upper cavity, the pressing member is movably installed in the upper cavity, and during the fitting, the pressing member in the upper cavity descends and presses on the member to be fitted, so as to fit the member to be fitted and the pressing member. The compression fitting in this embodiment may be a CG.

Specifically, the vacuum chamber 100 may be made of aluminum alloy, which has a high strength but a light weight, so that the overall weight of the apparatus may be reduced and the movement of the vacuum chamber 100 may be facilitated. The vacuum chamber 100 may have a square, circular or other irregular shape, and the fitting member to be fitted can be secured in the vacuum chamber 100, which is not limited herein. It should be noted that the shape of the upper chamber body is adapted to the shape of the vacuum chamber 100, so as to ensure that the mounting space and the receiving space 110 can be fastened together to form a closed vacuum chamber.

Go up the cavity and can be used for installing the pressfitting piece, in order to realize the pressfitting piece and treat the laminating of laminating piece, can also set up actuating mechanism in last cavity, can drive the pressfitting piece through actuating mechanism and descend, realize and treat the laminating that compresses tightly of laminating piece. The driving mechanism can adopt an expansion rod, a lifting frame or a Z-axis module, and can be selected preferentially in practical application, and the embodiment is not limited.

In order to conveniently press the piece and treat the fixed of piece of laminating, can set up laminating platform 200 in accommodating space 110, will treat that the piece of laminating fixes on laminating platform 200, laminating platform 200 treats the piece of laminating and provides the supporting role, when the piece of laminating with treat the piece of laminating contact, can guarantee that the pressfitting piece compresses tightly at treating the piece of laminating to realize the piece of laminating and treat the laminating of piece of laminating. The member to be attached may be fixed on the attaching table 200 by vacuum suction or adhesion, which is not limited herein. Of course, in other embodiments, the member to be attached may be fixed to the attaching table 200 by vacuum adsorption and adhesion at the same time.

In addition, a connecting rod can be arranged in the accommodating space 110, the connecting rod is vertically arranged in the accommodating space 110, and the end part of the connecting rod is connected to the attaching table 200, so that the attaching table 200 can be conveniently fixed in the accommodating space 110. In order to improve fixed fastness, stability, the connecting rod can set up many, and many connecting rods set up along the lower surface array of laminating platform 200, so can support laminating platform 200 in a plurality of positions of the below of laminating platform 200, improve and support fixed effect. Preferably, the connecting rod may be a round rod or a square rod, which is not limited herein.

In order to make the laminating piece with treat that the laminating piece can fix a position the laminating, set up the vision subassembly of shooing, can treat the laminating piece through the vision subassembly of shooing and shoot, through the collection of image, handle the back, control vacuum cavity 100 moves to the assigned position, the realization with the location of laminating piece. Preferably, the visual photographing component in the embodiment may be an industrial camera or a CCD camera, and may be freely selected in the process of practical application. In addition, the movement of the vacuum chamber 100 may be realized by a screw mechanism or a linear motion module, which is not limited in this embodiment. It should be pointed out that, in order to realize the laminating of pressfitting spare and treating the laminating of laminating spare, go up the cavity and also can move, at this moment, need set up the second vision subassembly of shooing, shoot the pressfitting spare through the second vision subassembly of shooing, through the collection, the processing etc. of image, control goes up the cavity and moves to the assigned position. So set up, realization pressfitting piece that can be convenient and the location of treating the piece of laminating.

Because there is antistatic line on the LCD (i.e. the piece to be attached), it will interfere with the shooting of the visual shooting component, and for this reason, in this embodiment, the infrared light source 300 is disposed on the attaching table 200. Infrared light source 300 and vision are shot the subassembly and are set up in LCD's the relative both sides, and infrared light source 300 can shine from LCD's below, and the light that infrared light source 300 sent shines LCD, and the vision is shot the subassembly and can be followed the top of LCD and shoot to prevent the interference of static electricity line pair vision through infrared light source 300 and shoot the subassembly. That is, the infrared light source 300 can illuminate the LCD from bottom to top, and the visual photographing assembly can photograph the LCD from top to bottom, photograph the LCD from two opposite directions and illuminate the light source, eliminating the interference of the anti-static electricity line on the LCD to the visual photographing assembly.

Further, referring to fig. 2, in an embodiment of the utility model, a bonding stage 200 is disposed in the vacuum chamber 100, a mounting groove 210 is disposed on a surface of the bonding stage 200 facing the piece to be bonded, and the infrared light source 300 is accommodated in the mounting groove 210 and does not protrude from the mounting groove 210.

In the technical solution adopted in this embodiment, the infrared light source 300 can be conveniently fixed on the attaching table 200 through the installation groove 210. Preferably, the shape of the mounting groove 210 is adapted to the shape of the infrared light source 300. In order to ensure the fixing effect of the infrared light source 300 in the mounting groove 210, the infrared light source 300 is in interference fit with the mounting groove 210, so that the infrared light source 300 can be firmly fixed in the mounting groove 210. In addition, in order to avoid infrared light source 300 to cause LCD's below unevenness, make infrared light source 300 not bulge in mounting groove 210, can understand that infrared light source 300 and mounting groove 210's notch parallel and level, or be less than mounting groove 210's notch, so set up, LCD can be levelly and smoothly fixed in laminating platform 200, avoids causing the LCD fracture because of LCD below unevenness when the laminating.

Further, in an embodiment of the present invention, a plurality of infrared light sources 300 are disposed, and the plurality of infrared light sources 300 are disposed along the surface array of the applying table 200 facing the to-be-applied member.

In the technical scheme adopted by the embodiment, the uniformity of the infrared light source 300 for lighting the LCD can be improved by arranging the plurality of infrared light sources 300, so that the interference of all anti-static lights on the LCD on the visual photographing assembly can be eliminated as far as possible. Preferably, two infrared light sources 300 may be provided, and the two infrared light sources 300 may be oppositely disposed at two ends of the attaching table 200, so that light emitted from the infrared light sources 300 may cover the surface of the entire LCD, and interference of an anti-static wire on the LCD is eliminated. Of course, in other embodiments, three or more infrared light sources 300 may be arranged, and arranged in an array on the laminating station 200, so that the light emitted from all the infrared light sources 300 can be uniformly distributed at each position of the LCD. It should be noted that all the infrared light sources 300 may be arranged in a linear array or a circumferential array on the surface of the laminating table 200, which is not limited in this embodiment.

Further, referring to fig. 2, in an embodiment of the present invention, the vacuum chamber 100 is provided with a mounting hole 120 communicating with the accommodating space 110, an electrical connector is hermetically connected in the mounting hole 120, and one end of the electrical connector is electrically connected to the infrared light source 300, so as to electrically connect the infrared light source 300 and an external power source.

In the technical solution adopted in this embodiment, the electrical connection between the infrared light source 300 and the external power source can be realized through the electrical connector, so that the external power source can continuously provide electrical energy for the infrared light source 300, and the normal operation of the infrared light source 300 is ensured. In order to facilitate the installation of the electrical connector, a mounting hole 120 is formed in the vacuum chamber 100, the electrical connector is fixed in the mounting hole 120, one end of the electrical connector extends into the receiving space 110 to be electrically connected to the infrared light source 300, and the other end of the electrical connector extends out of the receiving space 110 to be electrically connected to an external power source. Meanwhile, the electric connector is arranged in the mounting hole 120 in a sealing manner, so that the sealing performance of the vacuum cavity can be ensured, and the product can be attached more conveniently. Preferably, the electrical connector may be in interference fit with the mounting hole 120, a sealing ring may be disposed between the electrical connector and the mounting hole 120, and a sealing adhesive may be applied between the electrical connector and the mounting hole 120, so as to achieve the sealing connection between the electrical connector and the mounting hole 120. Specifically, the electrical connector may be a socket, an aviation plug, or the like.

Further, in an embodiment of the present invention, the electrical connector is an aviation plug.

In the technical scheme adopted by the embodiment, the aviation plug can also be called as a plug seat, is widely applied to various electric circuits, plays a role in connecting or disconnecting circuits, has the characteristics of quick connection and separation, good environmental resistance, high reliability and the like, and can effectively ensure the reliability of circuit connection.

Further, referring to fig. 2, in an embodiment of the utility model, the vacuum bonding apparatus further includes an anti-static gasket 400, the anti-static gasket 400 is made of a transparent material and is disposed on a surface of the bonding stage 200 facing the to-be-bonded member, and the to-be-bonded member is placed on the anti-static gasket 400.

In the technical scheme that this embodiment adopted, because most spare parts of vacuum laminating device are the aluminum alloy material, produce static easily, through the antistatic backing plate 400 that sets up, can avoid static to produce the interference to the LCD. The anti-static backing plate 400 can be made of non-conductive glass, plastic and the like, and is made of transparent materials, so that the interference of static electricity can be eliminated, and the light emitted by the infrared light source 300 can be transmitted to the piece to be attached.

Further, in an embodiment of the present invention, the anti-static gasket 400 is a transparent acrylic sheet.

In the technical scheme adopted in the embodiment, acrylic is also called PMMA (polymethyl methacrylate) or organic glass, is an important plastic polymer material which is developed earlier, has better transparency and chemical stability, can enable light rays emitted by the infrared light source 300 to be transmitted to the piece to be attached, and can effectively avoid electrostatic interference.

Further, referring to fig. 1 and 2, in an embodiment of the present invention, the vacuum bonding apparatus further includes a transparent soft pad 500, and the transparent soft pad 500 is disposed on a side of the anti-static pad 400 facing away from the bonding stage 200.

In the technical scheme that this embodiment adopted, through the transparent cushion 500 that sets up, when the product laminating, can treat the pressure that the laminating piece received and cushion, avoid treating the laminating piece because of the too big damage of atress. The transparent soft pad 500 can be made of transparent silica gel, transparent rubber and other flexible materials.

Further, referring to fig. 1 and 2, in an embodiment of the present invention, the vacuum attaching apparatus further includes an adhesive pad 600, and the adhesive pad 600 is exposed to the transparent soft pad 500 to adhere to the member to be attached.

In the technical scheme that this embodiment adopted, can fix the piece of treating laminating through the sticky pad 600 that sets up, improve the fixed fastness of treating the piece of laminating. It should be noted that the adhesive pad 600 can be used with a vacuum absorption mode to fix the member to be attached, so as to further improve the fixing effect of the member to be attached. Of course, in actual use, any fixing mode can be selected according to the required fixing effect.

Further, referring to fig. 2, in an embodiment of the present invention, the vacuum bonding apparatus further includes a support rod 700 connected to the adhesive pad 600, the bonding stage 200, the anti-static backing plate 400, and the transparent soft pad 500 are respectively provided with an avoiding hole for the support rod 700 to pass through, and the support rod 700 is movably disposed in the avoiding hole to adjust a vertical distance between the adhesive pad 600 and the bottom surface of the vacuum chamber 100.

In the technical scheme that this embodiment adopted, can provide the support to sticky pad 600 on the one hand through the bracing piece 700 that sets up, on the other hand can also adjust the height of sticky pad 600, adapts to different adsorption strength's requirement. The supporting rod 700 can be a telescopic rod and can also be driven to lift through an air cylinder, and the embodiment is not limited.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the embodiments of the present invention, and all modifications and equivalents that can be made by using the contents of the description and drawings of the embodiments of the present invention or directly/indirectly applied to other related technical fields are included in the scope of the embodiments of the present invention.

Claims

1. A vacuum bonding apparatus, comprising:

the infrared light source is arranged in the vacuum cavity, the infrared light source is opposite to the light emitting direction of the to-be-attached piece and the visual photographing component is opposite to the photographing direction of the to-be-attached piece.

2. The vacuum laminating apparatus of claim 1, wherein a laminating table is disposed in the vacuum chamber, the laminating table has a mounting groove facing the surface of the member to be laminated, and the infrared light source is received in the mounting groove and does not protrude from the mounting groove.

3. The vacuum bonding apparatus of claim 2, wherein a plurality of infrared light sources are provided, and a plurality of the infrared light sources are arranged along the bonding stage toward the surface array of the member to be bonded.

4. The vacuum laminating apparatus according to claim 2, wherein the vacuum chamber has a mounting hole, an electrical connector is hermetically connected in the mounting hole, and one end of the electrical connector is electrically connected to the infrared light source to electrically connect the infrared light source to an external power source.

5. The vacuum bonding apparatus of claim 4, wherein the electrical connector is an aircraft plug.

6. The vacuum laminating apparatus of any one of claims 2-5, further comprising an anti-static pad, wherein the anti-static pad is made of a transparent material and is disposed on a surface of the laminating table facing the member to be laminated, and the member to be laminated is placed on the anti-static pad.

7. The vacuum bonding apparatus of claim 6, wherein the anti-static gasket is a transparent acrylic sheet.

8. The vacuum bonding apparatus of claim 7, further comprising a transparent pad disposed on a side of the anti-static pad opposite the bonding stage.

9. The vacuum bonding apparatus of claim 8, further comprising an adhesive pad exposed to the transparent soft pad for adhering the member to be bonded.

10. The vacuum laminating device of claim 9, further comprising a support rod connected to the adhesive pad, wherein the laminating table, the anti-static backing plate and the transparent soft pad are provided with an avoiding hole for the support rod to pass through, and the support rod is movably disposed in the avoiding hole to adjust a vertical distance between the adhesive pad and the bottom surface of the vacuum cavity.