CN110703473B

CN110703473B - Equipment for binding vacuum adsorption base and display panel

Info

Publication number: CN110703473B
Application number: CN201911039227.6A
Authority: CN
Inventors: 李任鹏; 刘晓锋
Original assignee: Wuhan China Star Optoelectronics Technology Co Ltd
Current assignee: Wuhan China Star Optoelectronics Technology Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2022-05-31
Anticipated expiration: 2039-10-29
Also published as: CN110703473A

Abstract

The invention discloses a vacuum adsorption base and equipment for binding a display panel, wherein the vacuum adsorption base comprises: the carrying platform comprises a first surface and a second surface, wherein the first surface is used for bearing a component to be vacuum-absorbed, the second surface is opposite to the first surface, and the carrying platform comprises a vacuumizing hole connected with an external vacuum source and a vacuum cavity communicated with the vacuumizing hole; and the adjusting pieces are arranged on the carrying platform in a telescopic manner so as to adapt to the shape of the component to be subjected to vacuum adsorption. The vacuum adsorption device can realize the vacuum adsorption operation of the vacuum adsorption assemblies to be subjected to vacuum adsorption of different versions by using the same vacuum adsorption base, saves the production cost, can solve the problem of temporarily changing the vacuum adsorption assemblies, ensures the realization of the vacuum adsorption operation, and further ensures that the subsequent operation can be smoothly carried out.

Description

Equipment for binding vacuum adsorption base and display panel

Technical Field

The invention relates to the technical field of display panel production and manufacturing, in particular to a vacuum adsorption base and display panel binding equipment.

Background

A Flexible Printed Circuit (FPC) is a Flexible Printed Circuit board made of polyimide or polyester film as a base material. It has the characteristics of high reliability, high wiring density, light weight and thin thickness. The FPC is mainly used in many products such as a mobile phone, a notebook computer, a PDA, a digital camera, an LCD display Module (LCD Module, LCM for short), and the like, and is used for transmitting an electric signal.

The FPC and equipment assembly mode is as follows: firstly, placing a non-pin end of an FPC on a vacuum adsorption machine platform, and placing the pin end of the FPC on equipment to be assembled; wherein, the vacuum adsorption machine table is provided with a plurality of vacuum adsorption holes and a vacuum adsorption base; and according to the structure diagram of the FPC, the vacuum adsorption base can perform hollowed reserved treatment on a component area and a connector area corresponding to the FPC so as to ensure the alignment of the FPC and the vacuum adsorption base. And then manually aligning the pins on the equipment and the pins on the FPC. After the counterpoint is accomplished, open vacuum adsorption, the vacuum adsorption hole just can with FPC fixes on the vacuum adsorption board, ensure FPC can not take place the displacement to guarantee the accuracy of counterpoint. And then bonding the FPC and the device together by hot pressing.

Referring to fig. 1A to fig. 1C, fig. 1A is a schematic structural diagram of a conventional vacuum absorption base, and fig. 1B and fig. 1C are schematic structural diagrams of different versions of FPCs.

As shown in fig. 1A, according to a structure diagram of an FPC to be assembled, a device region (or a connector region) corresponding to the FPC is hollowed out to form a groove 101 adapted to the shape of the FPC and capable of accommodating the device of the FPC. Through recess 101, guarantee FPC with vacuum adsorption base 10's counterpoint for in the adsorption process, FPC's components and parts region with vacuum adsorption base 10 matches, thereby can realize the evacuation.

However, the groove position and the shape of the existing vacuum adsorption base are fixed, when the appearance of the FPC is changed or the position of the component area of the FPC is changed, the problem that the groove of the existing vacuum adsorption base is not matched can occur, and the binding process cannot be carried out. As shown in fig. 1B and fig. 1C, the shapes of the FPCs 19 of different versions and the component areas 191 of the FPCs are different, so that the same vacuum suction base cannot be used for vacuum suction operation, and a new vacuum suction base needs to be newly customized. That is, current vacuum adsorption base can only correspond with one version FPC, and the FPC of different editions needs to correspond different vacuum adsorption bases, has increased manufacturing cost, and has the unable vacuum adsorption of guaranteeing of temporary change FPC, causes the risk that can't bind.

Disclosure of Invention

The invention aims to provide a vacuum adsorption base and equipment for binding a display panel, so that the vacuum adsorption base can correspond to different FPC (flexible printed circuit) boards, the production cost is saved, and the vacuum adsorption operation of temporarily changing the FPC can be ensured.

In order to achieve the above object, the present invention provides a vacuum adsorption base, comprising: the carrying platform comprises a first surface and a second surface, wherein the first surface is used for bearing a component to be vacuum-absorbed, the second surface is opposite to the first surface, and the carrying platform comprises a vacuumizing hole connected with an external vacuum source and a vacuum cavity communicated with the vacuumizing hole; and the adjusting pieces are arranged on the carrying platform in a telescopic manner so as to adapt to the shape of the component to be vacuum-absorbed.

In order to achieve the above object, the present invention further provides a device for binding a display panel, comprising: the vacuum adsorption machine table is used for adsorbing and fixing the components to be bound and comprises the vacuum adsorption base.

The invention has the advantages that: according to the vacuum adsorption base, the plurality of telescopic adjusting pieces are arranged on the carrying platform, when a component to be vacuum adsorbed is fixed on the vacuum adsorption base, each adjusting piece can retract in a matched mode according to the shape of the component to be vacuum adsorbed, so that the vacuum adsorption base is matched with the shape of the component to be vacuum adsorbed, the vacuum adsorption base is fixed in the current deformation state through vacuumizing, the vacuum adsorption operation is guaranteed, and the operation is simple. Simultaneously, when treating that the vacuum adsorption subassembly form changes, through earlier with the vacuum adsorption base recovers, adjusts corresponding regulating part according to new vacuum adsorption subassembly form of treating and carries out the adaptation, can realize adopting same vacuum adsorption base to carry out the vacuum adsorption operation of treating the vacuum adsorption subassembly of different editions, practices thrift manufacturing cost, and can deal with the problem of treating the vacuum adsorption subassembly of temporary change, guarantees the realization of vacuum adsorption operation, and then ensures that follow-up operation can go on smoothly.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1A is a schematic view of a conventional vacuum chuck base;

FIGS. 1B-1C, schematic structural diagrams of different versions of FPCs;

FIG. 2 is a schematic diagram illustrating an architecture of a display panel binding apparatus according to the present invention;

FIG. 3 is a top view of the vacuum chuck base of the present invention;

FIG. 4 is a schematic diagram illustrating a deformation state of an embodiment of a vacuum chuck base according to the present invention;

FIG. 5 is a cross-sectional view of an adjustment member of the present invention;

FIGS. 6A-6B are schematic views of different states of the adjusting member of the present invention;

fig. 7A-7B are schematic diagrams of the vacuum absorption base of the present invention adapted to different versions of FPCs.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. The terms "first," "second," "third," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the objects so described are interchangeable under appropriate circumstances. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

Fig. 2-6B are schematic diagrams showing a structure of a display panel binding apparatus according to the present invention, fig. 3 is a top view of a vacuum absorption base according to the present invention, fig. 4 is a schematic diagram showing a deformation state of an embodiment of the vacuum absorption base according to the present invention, fig. 5 is a cross-sectional view of an adjusting member according to the present invention, fig. 6A is a cross-sectional view of an initial state of the adjusting member according to the present invention, and fig. 6B is a cross-sectional view of an operating state of the adjusting member according to the present invention.

As shown in fig. 2, the display panel binding apparatus according to the present invention includes: and the vacuum adsorption machine table is used for adsorbing and fixing the components to be bound. The vacuum adsorption machine at least comprises a vacuum adsorption base 20 and a vacuum generator 29. The vacuum generator 29 is used for performing vacuum pumping operation on the vacuum adsorption base 20, so that the vacuum adsorption machine can adsorb and fix the components to be bound. For example, when the FPC needs to be bound to the display panel, the non-pin end of the FPC is placed on the vacuum adsorption machine table of the present invention, and the pin end of the FPC is placed on the display panel to be assembled; aligning pins on the display panel and pins on the FPC; after the alignment is finished, vacuum adsorption is started, the FPC can be fixed on the vacuum adsorption machine table, and the FPC is ensured not to displace, so that the alignment accuracy is ensured; and then binding (bonding) the FPC and the display panel together through hot pressing.

Specifically, the vacuum adsorption base 20 includes: a carrier 21 and a plurality of adjusting members 22. The carrier 21 includes a first surface 211 for carrying components to be vacuum-sucked and a second surface 212 opposite to the first surface 211, and the carrier 21 includes a vacuum hole 213 connected to the vacuum generator 29 and a vacuum chamber 214 (the dashed arrow indicates the air direction) communicating with the vacuum hole 213. The adjusting members 22 are telescopically arranged on the carrier 21 to adapt to the shape of the component to be vacuum-sucked.

In a further embodiment, all the adjusting members 22 are distributed in an array, as shown in fig. 3, a plurality of the adjusting members 22, such as pins, are distributed on the carrier 21 in an array, so as to form a densely-distributed pin carrier. By arranging a plurality of telescopic adjusting pieces 22 distributed in an array on the carrier 21 of the vacuum adsorption base 20, when the component to be vacuum-adsorbed is fixed on the carrier 21, the adjusting pieces 22 can be matched and changed according to the shape of the component to be vacuum-adsorbed and the shape of the component area thereof. Namely, according to the heights of different parts of the components of the component to be vacuum-absorbed, the adjusting piece 22 in contact with the component to be vacuum-absorbed correspondingly retracts, so that the vacuum absorption base 20 is adapted to the shape of the component to be vacuum-absorbed and the shape of the component area. In this way, after the vacuum chamber 214 is vacuumized through the vacuuming hole 213, the vacuum adsorption base 20 can be fixed in the current deformation state, so as to firmly adsorb the component to be vacuum-adsorbed.

Fig. 4 illustrates a deformation state of an embodiment of the vacuum suction base of the present invention adapted to the shape of the component to be vacuum-sucked. Because the adjusting part 22 is retractable, the deformation state of the vacuum absorption base 20 can be adjusted according to different shapes of the components to be vacuum absorbed and according to the change of the shapes of the component areas of the components to be vacuum absorbed. Like this, adopt same vacuum adsorption base 20 just can regard as the vacuum adsorption base of the vacuum adsorption subassembly to use of difference, practices thrift manufacturing cost, and can deal with the problem of treating the vacuum adsorption subassembly of temporary change, guarantees the realization of vacuum adsorption operation.

In a further embodiment, as shown in fig. 5, the adjustment member 22 comprises: a body 221, a first end 222 protruding from the first surface 211, and a second end 223 protruding from the second surface 212. When the first end 222 moves closer to the first surface 211 under the pressure of the component to be vacuum-sucked, the second end 223 moves away from the second surface 212, so that the adjusting member 22 retracts relative to the carrier 21 to adapt to the shape of the component to be vacuum-sucked. The body 221 may be cylindrical to facilitate telescopic movement.

Specifically, a first vacuum suction hole 224 is disposed in the body 221, and is parallel to the first surface 211 and penetrates through the body 221; a second vacuum suction hole 225 is disposed in the first end 222 and perpendicular to the first surface 211, and the first vacuum suction hole 224 is in communication with the second vacuum suction hole 225. So that when the adjusting member 22 moves relative to the first surface 211 to place the first vacuum suction hole 224 in the vacuum chamber 214, the first vacuum suction hole 224 further communicates with the vacuum chamber 214 to suction-fix the component to be vacuum-sucked through the second vacuum suction hole 225. That is, the second vacuum suction hole 225, the first vacuum suction hole 224, the vacuum chamber 214, and the vacuum hole 213 form a gas passage, so that the second vacuum suction hole 225 can suck and fix the vacuum-to-be-sucked components when the vacuum hole 213 is connected to the vacuum generator 29 for a vacuum operation. That is, the vacuum adsorption of the component to be vacuum-adsorbed and the vacuum adsorption base 20 is realized through the vacuum adsorption hole provided in the regulating member 22. In other embodiments, the carrier 21 may also be provided with a plurality of vacuum suction holes corresponding to the non-electrical component arrangement area of the component to be vacuum-sucked, so as to realize vacuum suction.

In a further embodiment, the distance from the first vacuum suction hole 224 to the first end 222 is 1/4-1/3 of the height of the body 221, so as to ensure that the first vacuum suction hole 224 is above the first surface 211 and the second vacuum suction hole 225 is not active when the adjusting member 22 is not acted upon by external force, as shown in fig. 6A (only one adjusting member 22 is illustrated for illustration). After the adjusting member 22 is subjected to an external force, the first vacuum suction hole 224 can be located in the vacuum chamber 214 below the first surface 211 but still above the second surface 212, so as to form a gas passage, as shown in fig. 6B (only one adjusting member 22 is shown for illustration).

In a further embodiment, the adjusting member 22 further comprises: a first position-limiting element 226 is disposed at the first end 222. The first stopper 226 is used for limiting the movement of the first end 222, and when the first stopper 226 contacts the first surface 211, the adjusting member 22 stops retracting, so as to prevent the first end 222 from separating from the first surface 211 and entering the vacuum chamber 214.

In a further embodiment, the adjusting member 22 further comprises: a second position-limiting element 227 disposed at the second end 223. The second limiting member 223 is used for limiting the movement of the second end 223, and when the second limiting member 227 contacts the second surface 212, the adjusting member 22 stops extending, so as to prevent the second end 223 from separating from the second surface 212 and entering the vacuum chamber 214.

Referring again to fig. 2, in a further embodiment, the vacuum suction base 20 further includes a supporting assembly 23; the supporting component 23 is disposed below the second surface 212, and a receiving cavity 231 for receiving the adjusting component 22 is formed inside the supporting component 23. That is, the second end 223 of the adjusting member 22 is located in the accommodating cavity 231, and when the adjusting member 22 is retracted, the second end 223 moves away from the second surface 212 but is still located in the accommodating cavity 231.

In a further embodiment, the vacuum suction base 20 further comprises a driving assembly 24; the driving assembly 24 is disposed in the receiving cavity 231 of the supporting assembly 23, and is used for driving the adjusting member 22 to move along a direction perpendicular to the second surface 212 to return to the initial state, so that the next fitting with the assembly to be vacuum-sucked can be performed. The driving component 24 may be an elastic component, which retracts when the adjusting component 22 is subjected to an external force, and compresses the elastic component; when the external force disappears and the vacuum suction force is removed, the elasticity of the elastic member acts on the adjusting member 22 to restore the original state. In other embodiments, the accommodating cavity 231 may be filled with an elastic material, may be accommodated in the adjusting member 22 and retracted after the external force is applied, and may restore the adjusting member 22 to the original state when the external force disappears and the vacuum absorption force is also removed.

In a further embodiment, the vacuum absorption base 20 further includes a recording component 25, and the recording component 25 is connected to all the adjusting members 22, and is configured to acquire and record the telescopic states of all the adjusting members 22, so as to acquire the current deformation state of the vacuum absorption base 20. The recording component 25 can be, for example, a position sensor to detect and record the extension and retraction state of all the adjusting members 22.

Please refer to fig. 2 and fig. 7A-7B together, wherein fig. 7A-7B are schematic diagrams illustrating the vacuum absorption base of the present invention being adapted to different versions of FPCs.

When in use, a first component 791 to be vacuum-absorbed is placed on the carrier 21 of the vacuum absorption base 20; according to the shape of the first component 791 to be vacuum absorbed, the corresponding adjusting component 22 is correspondingly retracted; the vacuum generator 29 is connected with the vacuum hole 213 for vacuum-pumping operation, and the corresponding adjusting member 22 is fixed by suction, so that the vacuum suction base 20 maintains the deformation state matched with the first component 791 to be vacuum-sucked, and the first component 791 to be vacuum-sucked is fixed by suction, as shown in fig. 7A.

For a second component 792 to be vacuum-sucked, which is different from the first component 791 in shape or from the first component area 791 in shape, when the second component 792 to be vacuum-sucked is subjected to a vacuum-sucking operation: restoring all the adjusting pieces 22 on the vacuum adsorption base 20 to the initial state; placing the second component to be vacuum sucked 792 on the stage 21 of the vacuum sucking base 20; according to the shape of the second component 792 to be vacuum sucked, the corresponding adjusting member 22 is correspondingly retracted; through vacuum generator 29 connects evacuation hole 213 carries out the evacuation operation, adsorbs fixedly corresponding regulating part 22, so that vacuum adsorption base 20 keeps the deformation state that matches with second waits for vacuum adsorption component 792, and will second waits for vacuum adsorption component 792 to adsorb fixedly, as shown in fig. 7B.

For example, for vacuum adsorption of the FPC, the vacuum adsorption base 20 is adapted to the shape of the FPC and the shape of the component area thereof by adjusting the adjusting member 22, so that vacuum adsorption operation is ensured to be realized, and then the bonding operation process of the FPC and other equipment can be performed; when the appearance of the FPC or the form of the component area of the FPC is changed, all the adjusting pieces 22 on the vacuum adsorption base 20 are restored to the initial state, and the FPC subjected to adaptation change is retracted and adjusted, so that the vacuum adsorption base 20 is adapted to the changed appearance of the FPC and the form of the component area of the FPC, and the vacuum adsorption of the changed FPC is ensured, thereby realizing the vacuum adsorption operation of FPCs of different versions by using the same vacuum adsorption base.

According to the vacuum adsorption base, the plurality of telescopic adjusting pieces are arranged on the carrying platform, when the component to be subjected to vacuum adsorption is fixed on the vacuum adsorption base, the adjusting pieces can retract in a matching manner according to the shape of the component to be subjected to vacuum adsorption, so that the vacuum adsorption base is matched with the shape of the component to be subjected to vacuum adsorption, the vacuum adsorption base is fixed in the current deformation state through vacuumizing, the vacuum adsorption operation is guaranteed, and the operation is simple. Simultaneously, when treating that the vacuum adsorption subassembly form changes, through earlier with the vacuum adsorption base recovers, adjusts corresponding regulating part according to new vacuum adsorption subassembly form of treating and carries out the adaptation, can realize adopting same vacuum adsorption base to carry out the vacuum adsorption operation of treating the vacuum adsorption subassembly of different editions, practices thrift manufacturing cost, and can deal with the problem of treating the vacuum adsorption subassembly of temporary change, guarantees the realization of vacuum adsorption operation, and then ensures that follow-up operation can go on smoothly.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A vacuum adsorption base, comprising: the carrying platform comprises a first surface and a second surface, wherein the first surface is used for bearing a component to be vacuum-absorbed, the second surface is opposite to the first surface, and the carrying platform comprises a vacuumizing hole connected with an external vacuum source and a vacuum cavity communicated with the vacuumizing hole; the adjusting pieces are arranged on the carrying platform in a telescopic mode so as to be matched with the shape of the component to be vacuum-absorbed, and all the adjusting pieces are distributed in an array mode;

the adjusting member includes: the vacuum adsorption device comprises a body, a first vacuum adsorption hole and a second vacuum adsorption hole, wherein the first vacuum adsorption hole is parallel to the first surface and penetrates through the body; the first end protrudes out of the first surface, a second vacuum adsorption hole perpendicular to the first surface is arranged in the first end, and the first vacuum adsorption hole is communicated with the second vacuum adsorption hole; when the adjusting piece moves relative to the first surface to enable the first vacuum adsorption hole to be placed in the vacuum cavity, the first vacuum adsorption hole is communicated with the vacuum cavity so as to adsorb and fix the component to be vacuum-adsorbed through the second vacuum adsorption hole;

the distance from the first vacuum suction hole to the first end is 1/4-1/3 of the height of the body, so that the first vacuum suction hole is located above the first surface when the adjusting piece is not acted by external force, and the second vacuum suction hole is not acted.

2. The vacuum adsorption base of claim 1, wherein the adjustment member further comprises: the first limiting piece is arranged at the first end.

3. The vacuum adsorption base of claim 1, wherein the adjustment member further comprises: the second end protrudes out of the second surface of the carrying platform; and a second limiting member disposed at the second end.

4. The vacuum adsorption base of claim 1, wherein the vacuum adsorption base further comprises a support assembly; the supporting component is arranged below the second surface, and an accommodating cavity for accommodating the adjusting piece is formed in the supporting component.

5. The vacuum chuck as claimed in claim 4, wherein the vacuum chuck further comprises a drive assembly; the driving assembly is arranged in the accommodating cavity and used for driving the adjusting piece to move along the direction vertical to the first surface.

6. The vacuum adsorption base of claim 1, further comprising a recording component, wherein the recording component is connected to all the adjustment members, and is configured to acquire and record the stretching states of all the adjustment members so as to acquire the current deformation state of the vacuum adsorption base.

7. A display panel binding apparatus, comprising: a vacuum adsorption machine for adsorbing and fixing a component to be bound, wherein the vacuum adsorption machine comprises a vacuum adsorption base as claimed in any one of claims 1 to 6.