CN214751173U

CN214751173U - ACF feeding device for bonding flexible panel

Info

Publication number: CN214751173U
Application number: CN202023309930.5U
Authority: CN
Inventors: 赵露; 徐张栋; 鉏晨涛; 杨晓刚; 范振海; 陈启迪
Original assignee: Tdg Machinery Technology Co ltd
Current assignee: Tdg Machinery Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-11-16
Anticipated expiration: 2030-12-30

Abstract

The ACF feeding device for bonding the flexible panel comprises a feeding wheel, wherein the feeding wheel can be rotatably arranged on a fixed seat relative to the fixed seat through a bearing, and the feeding wheel is connected with a driving shaft which drives the feeding wheel to rotate. The utility model discloses a bearing fixes the feed wheel for the axle center of feed wheel when rotating is more stable, thereby reaches the ACF feed volume that corresponds when the feed wheel every rotates corresponding angle and is definite purpose, improves the accuracy of feeding of ACF.

Description

ACF feeding device for bonding flexible panel

Technical Field

The utility model belongs to the technical field of the conductive film pad pasting, concretely relates to ACF feeding device that flexible panel nation used.

Background

Anisotropic Conductive Film (ACF) is a mixture of an insulating adhesive material and a large number of Conductive particles, and can be used to connect two different substrates or lines, so that electrical conduction can be achieved in the vertical (Z-axis) direction, and insulation can be achieved in the horizontal (X-axis, Y-axis) direction. Currently, the ACF is used in many electronic devices, for example, the electronic element can be connected to the liquid crystal screen through the ACF, or the flexible board and the rigid board can be connected through the ACF in a flexible-rigid board, and so on. The application range relates to the fields of electronic components, electronic assemblies, circuit board assembly, display and lighting industry, communication, automobile electronics, smart cards, radio frequency identification, electronic tags and the like.

In the Bonding process, an ACF1 'needs to be placed in the middle of a bonded object 2', and then current flows between the bonded objects 2 'only in the z-direction of the vertical axis by the high-temperature and high-voltage action of a Bonding Tool 3', as shown in fig. 1.

As shown in FIG. 2, when the ACF1 'is attached to the object 2', it needs to be locked at a certain position by the guiding wheel 4 'driven by the feeding wheel 5', and then the object 2 'is controlled to move right under the ACF 1', the pressing head is pressed down, so as to attach the ACF1 'to the attachment area 7' with high precision. In the present day of more and more miniaturization of electronic equipment, the size of the attachment region 7 ' is also increasingly miniaturized, the distance between the attachment regions as shown in fig. 3 is also increasingly smaller, in order to meet the process requirement, the ACF1 ' needs to be accurately attached to the region to be attached by the Bonding object 2 ', and the deviation in the Y direction is less than ± 0.03 mm.

As shown in fig. 2, the feeding of the ACF1 ' in the Y direction is performed by the feed wheel 5 ' rotating after the ACF1 ' is clamped by the pressing wheel 6 ' driven by the cylinder above the feed wheel 5 '. The rotational accuracy of the feed wheel 5 'is an important factor in determining the positioning accuracy of the ACF 1' in the Y direction.

As shown in fig. 4 and 5, the conventional feed wheel device is mounted on the driving shaft 8 ' by the top thread 10 ' passing through the top thread mounting hole 9 ', and the driving shaft 8 ' can drive the feed wheel 5 ' to rotate by the top thread 10 ' abutting against the driving shaft 8 '.

The accuracy of the ACF1 'feed is related to the roundness of the outer circular surface 51' of the feed wheel and the concentricity of the outer circular surface 51 'of the feed wheel with the drive shaft 8'. The conventional installation is schematically shown in fig. 6, because the installation is fixed by the jackscrew 10 ', a gap 11 ' is formed between the driving shaft 8 ' and the inner circle 52 ' of the feeding wheel due to the assembly, and the size and the deviation of the gap 11 ' are uncontrollable. As shown in fig. 7, when the outer circumferential surface 51 ' of the feed wheel is eccentric to the inner circumferential surface, the outer circumferential surface may be deviated when the driving shaft 8 ' rotates, thereby making the feeding amount of the ACF1 ' unstable.

Disclosure of Invention

For solving the above-mentioned problem that prior art exists, the utility model provides a control ACF's that can high accuracy feed volume to satisfy the ACF feeding device of flexible panel nation usefulness of the attached demand of the specific length ACF that different products correspond.

The utility model adopts the technical proposal that:

the utility model provides a flexible panel nation uses ACF feeding device which characterized in that: the feeding wheel can be rotatably arranged on the fixed seat relative to the fixed seat through a bearing, and the feeding wheel is connected with a driving shaft which drives the feeding wheel to rotate. The utility model discloses a bearing fixes the feed wheel for the axle center of feed wheel when rotating is more stable, thereby reaches the ACF feed volume that corresponds when the feed wheel every rotates corresponding angle and is definite purpose, improves the accuracy of feeding of ACF.

Furthermore, the feeding wheel is connected and linked with the driving shaft through a coupler. The utility model discloses a shaft coupling reduces the eccentricity in the axle center of drive shaft and the axle center of feed wheel.

Further, the feeding wheel comprises a body, one side of the body is provided with a shaft body of a stepped structure, and the shaft body penetrates through the fixed seat and then is connected with the driving shaft.

Further, the bearing is installed between the shaft body and the fixed seat, and the inner circle of the bearing is tightly matched with the shaft body of the feeding wheel.

Further, the outer end face of the bearing is in contact with a stepped end face of the shaft body.

The utility model has the advantages that:

1. the feeding wheel is fixedly installed by utilizing the bearing, so that the axis of the feeding wheel is more stable when the feeding wheel rotates, the aim that the feeding amount of the ACF corresponding to the feeding wheel when the feeding wheel rotates by a corresponding angle is determined is fulfilled, and the feeding precision of the ACF is improved.

2. The mode of connecting the driving shaft and the feeding wheel by the coupler can solve the deviation between the axis of the driving shaft and the axis of the feeding wheel determined by the bearing, so that the connection tolerance between the two parts is higher, the installation is convenient, and the reliability of the mechanism is improved.

Drawings

FIG. 1 is a schematic diagram of the Bonding process.

FIG. 2 is a schematic feeding diagram of an ACF.

FIG. 3 is a schematic diagram of the ACF structure after the ACF is adhered.

Fig. 4 is a schematic perspective view of a conventional feed wheel device.

Fig. 5 is a schematic view of a fixing structure of a conventional feed wheel device.

Fig. 6 is a schematic view of a mounting structure of a conventional feed wheel device.

Fig. 7 is a schematic diagram illustrating a problem occurring when the conventional feed wheel device rotates.

Fig. 8 is a schematic structural diagram of the present invention.

Fig. 9 is a schematic sectional view of the present invention.

Fig. 10 is a schematic view of the present invention.

Detailed Description

The present invention will be further described with reference to the following specific embodiments, but the present invention is not limited to these specific embodiments. It will be recognized by those skilled in the art that the present invention encompasses all alternatives, modifications, and equivalents as may be included within the scope of the claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 8 and 9, the embodiment provides an ACF feeding device for bonding a flexible panel, including a feeding wheel 1, where the feeding wheel 1 is rotatably mounted on a fixing seat 5 through a bearing 2 relative to the fixing seat 5, and the feeding wheel 1 is linked with a driving shaft 4 driving the feeding wheel to rotate through a coupling 3. The utility model fixes the feeding wheel 1 through the bearing 2, so that the axle center of the feeding wheel 1 is more stable when rotating, thereby achieving the purpose that the feeding amount of the ACF corresponding to the feeding wheel 1 when rotating corresponding angle is determined, and improving the feeding precision of the ACF; and the eccentricity between the axis of the driving shaft 4 and the axis of the feed wheel 1 is reduced by the coupling 3.

This embodiment feed wheel 1 includes the body, one side of body is equipped with stair structure's axis body, the axis body passes behind fixing base 5 and shaft coupling 3's one end fixed connection, shaft coupling 3's the other end and 4 fixed connection of drive shaft. The feed wheel 1 transmits a rotational driving force from a driving shaft 4 through a coupling 3. The mode that the shaft coupling 3 connects the driving shaft 4 and the feeding wheel 1 can solve the deviation between the shaft center of the driving shaft 4 and the shaft center of the feeding wheel 1 determined by the bearing 2, so that the connection tolerance between the two parts is higher, the installation is convenient, and the reliability of the mechanism is improved.

In this embodiment, the bearing 2 is installed between the shaft body and the fixing seat 5, and the inner circle of the bearing 2 is tightly matched with the shaft body of the feeding wheel 1. The outer end face of the bearing 2 is in contact with a step end face of the shaft body. The utility model discloses a method through the circularity when improving the outer disc of feed wheel 1 and rotating improves the feeding precision of ACF, as shown in FIG. 10, only when the outer disc is enough round, the deviation of the length of the circular arc that corresponds when it rotates arbitrary the same angle just can be littleer. Therefore, when the feed wheel 1 rotates, the rotation center is the center limited by the inner circle surface of the bearing 2, and finally, the ACF feeding amount corresponding to each rotation angle of the feed wheel 1 is determined by utilizing the high-precision rotation axis center of the bearing 2.

Claims

1. The utility model provides a flexible panel nation uses ACF feeding device which characterized in that: the feeding wheel can be rotatably arranged on the fixed seat relative to the fixed seat through a bearing, and the feeding wheel is connected with a driving shaft which drives the feeding wheel to rotate.

2. The ACF feeding device for bonding flexible panel according to claim 1, wherein: the feeding wheel is connected and linked with the driving shaft through a coupler.

3. The ACF feeding device for flexible panel bonding according to claim 1 or 2, wherein: the feeding wheel comprises a body, one side of the body is provided with a shaft body of a stepped structure, and the shaft body penetrates through the fixed seat and then is connected with the driving shaft.

4. The ACF feeding device for bonding flexible panels according to claim 3, wherein: the bearing is arranged between the shaft body and the fixed seat, and the inner circle of the bearing is tightly matched with the shaft body of the feeding wheel.

5. The ACF feeding device for bonding flexible panel according to claim 4, wherein: the outer end face of the bearing is in contact with a step end face of the shaft body.