阅读说明：本技术 贴合装置及方法 (Bonding device and method ) 是由 谢小梅 周小珍 许建勇 于 2018-07-17 设计创作，主要内容包括：本发明涉及一种贴合装置,贴合装置包括：主动件、第一从动件、第二从动件、第一压合件、第二压合件及弹性件,从动件枢转安装于主动件上,第一压合件与第二压合件分别固定于第一从动件与第二从动件的末端,弹性件连接第一从动件及第二从动件。本发明还涉及一种贴合方法,上述贴合装置及贴合方法通过主动件竖直方向的移动,推动两个压合件沿相反方向移动并且进行压合,在贴合曲面时,可降低贴合过程中产生气泡的概率,防止膜材偏离,提高贴合质量。(The invention relates to a laminating device, comprising: the driving part, the first driven part, the second driven part, the first pressing part, the second pressing part and the elastic part are arranged on the driving part in a pivoting mode, the first pressing part and the second pressing part are fixed to the tail ends of the first driven part and the tail end of the second driven part respectively, and the elastic part is connected with the first driven part and the second driven part. The invention also relates to a laminating method, the laminating device and the laminating method push the two laminating pieces to move in opposite directions and carry out laminating through the movement of the driving piece in the vertical direction, and when the curved surface is laminated, the probability of generating bubbles in the laminating process can be reduced, the deviation of a membrane material is prevented, and the laminating quality is improved.)

1. A laminating device for laminating a film material to a substrate, comprising:

a driving member;

the first driven part is pivotally arranged on the driving part;

the second driven part is pivotally arranged on the driving part;

the first pressing piece is fixed at the end of the first driven piece;

the second pressing part is fixed at the end of the second driven part; and

the elastic piece is connected with the first driven piece and the second driven piece;

when the driving part pushes the first driven part and the second driven part along the direction close to the membrane material, the first pressing part and the second pressing part press the membrane material and move and press the membrane material along the opposite direction, and the elastic part elastically tensions the first driven part and the second driven part.

2. The laminating device of claim 1, wherein: the laminating device further comprises a fixing piece, wherein the fixing piece is used for fixing the driving piece and the first driven piece and preventing the first driven piece from rotating relative to the driving piece.

3. The laminating device according to claim 1 or 2, wherein: the first driven part and the second driven part are pivotally arranged on the same rotating shaft of the driving part.

4. The laminating device of claim 3, wherein: the first follower and the second follower are equal in length.

5. The laminating device according to claim 1 or 2, wherein: the elastic piece is a spring or a shrapnel or a pneumatic or hydraulic device.

6. The laminating device according to claim 1 or 2, wherein: the first pressing piece and the second pressing piece are rollers and are respectively pivotally mounted on the first driven piece and the second driven piece.

7. A bonding method characterized by using the bonding apparatus as set forth in claim 1 for bonding, comprising the steps of:

placing a substrate in a groove of a fitting base;

attaching a film material to the protective film, and suspending the film material at the opening of the groove of the attaching base so that the film material is opposite to the base material;

locking the driving piece and the first driven piece, and pressing the first driven piece to enable the first pressing piece to abut against the membrane material and pre-attach the first part of the membrane material to the substrate;

unlocking the driving piece and the first driven piece to enable the first driven piece and the second driven piece to be located right above the first part of the membrane material; and

and pressing the driving piece to enable the first pressing piece and the second pressing piece to move in opposite directions, and fully laminating the membrane material.

Technical Field

The invention relates to a laminating device and a laminating method, in particular to a film laminating device and a film laminating method.

Background

The shell of products such as smart phones, watches and the like is designed into a 3D curved surface by existing electronic product manufacturers, so that the comfort level of holding or wearing is increased on one hand, and the display effect has more stereoscopic impression on the other hand. In terms of materials, electronic devices increasingly adopt glass shells, such as cover plate glass outside a front display screen or back plate glass on a back cover, and films with specific functions, such as touch control films, protective films or decorative films, are often required to be attached to the inner sides of the glass shells. Traditional film passes through the laminating of gyro wheel unidirectional sliding, and what be directed against is the plane laminating, and this kind of method can make curved surface corner produce pincher trees or the corner pastes in advance when laminating 3D glass, leads to the whole laminating of film incomplete influence outward appearance.

Disclosure of Invention

In view of the above, it is desirable to provide a bonding apparatus and a bonding method for tightly bonding film materials.

A bonding apparatus for bonding a film to a substrate, the bonding apparatus comprising:

a driving member;

the first driven part is pivotally arranged on the driving part;

the second driven part is pivotally arranged on the driving part;

the first pressing piece is fixed at the tail end of the first driven piece;

the second pressing piece is fixed at the tail end of the second driven piece; and

the elastic piece is connected with the first driven piece and the second driven piece;

when the driving piece moves in the direction close to the membrane material, the first pressing piece and the second pressing piece abut against the membrane material, the second pressing piece and the first pressing piece move in the opposite direction to press the membrane material, and the elastic piece elastically tensions the first driven piece and the second driven piece.

The laminating device can control the two laminating pieces to be stably and symmetrically laminated on the substrate from a plane to a curved surface through the one-dimensional motion of the driving piece until the lamination is completed, and the laminating problem of the membrane material on the curved part of the substrate is solved. The elasticity of elastic component has increased the pressfitting spare and to the pressure of membrane material and substrate at the pressfitting in-process, makes the laminating inseparabler.

The connecting part of the driving part and the first driven part is also provided with a fixing part, and the fixing part can fix the driving part and the first driven part to ensure that the first driven part and the driving part keep a fixed angle. At the moment, the driving piece can control the first driven piece and the first pressing piece to synchronously move, the second pressing piece is in a non-working state, and the laminating device can carry out linear laminating and plane laminating on the film material and the substrate so as to achieve the purpose of pre-laminating; when the fixing piece is disconnected, the first driven piece can rotate freely around the rotating shaft at the bottom end of the driving piece, at the moment, the driving piece only needs to move along the vertical direction, the two pressing pieces can be pressed in opposite directions, and the pressing piece can press the curved surfaces of the membrane material and the base material. The fixed disconnection of the fixing piece can flexibly adjust the control of the driving piece on the pressing piece, and the purpose of curved surface fitting is better realized.

The first driven part and the second driven part are pivotally mounted on the same rotating shaft at the bottom end of the driving part. When the driving part moves along the vertical direction, the first driven part and the second driven part can rotate around the rotating shaft, and the pressing part can be pressed according to the shape of the base material, so that curved surface fitting can be realized.

The elastic element is a spring, a spring plate or a device which can be stretched by air and hydraulic devices and has restoring force. The elastic piece is stretched in the process that the first pressing piece and the second pressing piece move in opposite directions, so that the elastic piece generates a pulling force on the first pressing piece and the second pressing piece, the pulling force and the pushing force of the first driven piece and the second driven piece on the first pressing piece and the second pressing piece form a vertical downward resultant force, the pressure of the pressing pieces on the membrane material and the base material in the pressing process is increased, the purpose that the pressing pieces press the membrane material is achieved, bubbles generated by the pressing are reduced, and the pressing is more compact.

The first pressing piece and the second pressing piece are rollers and are respectively pivotally mounted on the first driven piece and the second driven piece. Because the rolling friction is generated between the roller and the film material in the rolling process, the friction coefficient is minimum, the energy consumption generated by the attachment can be reduced, and the attachment process is more stable and smooth.

The first follower and the second follower are the same in length. In the process that the driving part moves downwards, because the lengths of the first driven part and the second driven part are the same, the first pressing part and the second pressing part can simultaneously contact the membrane material and roll along opposite directions, and the symmetry and the uniformity of the movement of the first pressing part and the second pressing part can be ensured, so that the quality of attachment is improved.

The invention also provides a fitting method, which comprises the following steps:

placing a substrate in a groove of a fitting base;

attaching a film material to the protective film, and suspending the film material at the opening of the groove of the attaching base so that the film material is opposite to the base material;

the fixing piece is used for fixing the driving piece and the first driven piece, and pressing the first driven piece to enable the first pressing piece to abut against the membrane material and pre-attach the first part of the membrane material to the base material;

the fixing piece disconnects the driving piece and the first driven piece, so that the first pressing piece and the second pressing piece are positioned right above the first part of the membrane material; and

and pressing the driving piece to enable the first pressing piece and the second pressing piece to move in opposite directions, and pressing two sides of the first part of the membrane material.

The pre-attaching comprises the following specific steps: the driving piece moves horizontally to enable the first pressing piece to move right above the middle part of the membrane material; the driving piece moves downwards to enable the first pressing piece to press the middle part of the membrane material onto the substrate; the driving piece moves horizontally, so that the first pressing piece rolls near the middle of the membrane material.

The method provided by the invention is characterized in that the film material is pre-attached to the position near the central line of the base material, and then two pressing pieces are utilized to press from the middle of the base material to two curved edges. Under the condition that the width of the film material is not reduced, the film material is completely attached to the base material, the probability of generating bubbles in the attaching process is reduced, the attaching quality of the curved surface is improved, and the purpose of expanding the curved surface touch display range is achieved on the basis.

According to the laminating device and the laminating method, the film material is conveniently laminated on the substrate through the two laminating pieces, when the curved surface is laminated, the probability of generating bubbles in the laminating process is reduced, the film material is prevented from deviating, and the laminating quality is improved.

Drawings

Fig. 1 is a schematic view illustrating a bonding apparatus according to an embodiment of the invention.

Fig. 2 is a schematic partial structure view of the bonding apparatus in fig. 1.

Fig. 3 is a schematic view of mechanical analysis of a node of a part of the attaching device in fig. 2.

Fig. 4 is a schematic view of the attaching device of fig. 2 with a fixing member, wherein the fixing member is in an unlocked state.

FIG. 5 is a schematic view of the fastening member of the attaching device of FIG. 4 in a locked state.

Fig. 6 is a schematic view of the bonding apparatus of fig. 5 in pre-bonding.

Fig. 7 is a schematic view of the bonding apparatus of fig. 6 in full bonding.

Fig. 8 is a schematic view of a structure of a bonding base according to an embodiment of the invention.

Fig. 9 is a schematic view of a roll sticker structure according to an embodiment of the present invention.

Fig. 10 is a schematic flow chart illustrating a bonding method according to an embodiment of the invention.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "parallel," "upper," "lower," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-2, a bonding apparatus according to an embodiment of the present invention includes: the driving member 10, the first driven member 20, the second driven member 30, the first pressing member 50, the second pressing member 60, and the elastic member 70.

The driving member 10 is a rigid rod-shaped material, the top end of the driving member is pivotally connected, the driving member 10 can rotate around the top end to an arbitrary angle and then be fixed, in this embodiment, the material of the driving member 10 is alloy steel.

The first follower 20 and the second follower 30 are made of rigid rod-shaped materials with the same length, and are pivotally mounted on the same rotating shaft 40 at the end of the driving member 10. The first follower 20 and the second follower 30 can rotate freely around the rotating shaft 40, and in this embodiment, the first follower 20 and the second follower 30 are made of alloy steel.

As shown in fig. 4, a fixing member 80 is further disposed at a connection portion between the driving member 10 and the first driven member 20, the fixing member 80 can fix the driving member 10 and the first driven member 20, and when the fixing member 80 is locked, the first driven member 20 and the driving member maintain a set angle; when the fixed member 80 is unlocked, the first driven member 20 can rotate freely around the rotating shaft 40 at the end of the driving member 10.

As shown in fig. 4-5, the driving member 10 and the first driven member 20 are respectively provided with a first protruding member 15 and a second protruding member 25 at the connection position thereof, and the first protruding member 15 and the second protruding member 25 are both provided with a through hole having the same shape and size, a rigid piece 5 is arranged in the through hole of the first protruding member 15, the rigid piece 5 can slide up and down in the through hole of the first protruding member 15, and can be embedded with the through hole of the second protruding member 25 when sliding down, so as to realize the fixed connection between the driving member 10 and the first driven member 20. When the rigid piece 5 slides upwards again, the fixed connection between the driving member 10 and the first driven member 20 can be disconnected. The first projecting member 15, the second projecting member 25 and the rigid segment 5 are integral parts of the fastener 80.

The first pressing member 50 is fixed at the end of the first driven member 20, and the second pressing member 60 is fixed at the end of the second driven member 30.

An elastic member 70 is connected between the first follower 20 and the second follower 30, and the elastic member 70 is elastically retractable after being stretched, and in this embodiment, the elastic member is a spring.

When pre-attaching, the fixing member locks the driving member 10 and the first driven member 20, the driving member 10 moves horizontally, so that the first pressing member 50 moves above the center line of the film material 240, the driving member 10 moves downwards, the first pressing member 50 presses the center line of the film material 240 onto the substrate 150, the driving member 10 moves left and right, and the first pressing member 50 is driven to roll near the center line of the substrate 150.

When the film materials are completely laminated, the driving member 10 moves in the vertical direction, the first driven member 20 and the second driven member 30 rotate relative to the driving member 10, and the elastic member 70 stretches, so that the first pressing member 50 and the second pressing member 60 generate pressure on the film materials 240, and the first pressing member 50 and the second pressing member 60 move in opposite directions and press the film materials 240 downwards.

As shown in fig. 3, both ends of the elastic member 70 are connected to the first follower 20 and the second follower 30. In the full-laminating process, the driving member 10 descends, the force of the driving member 10 on the rotating shaft 40 is F1, and vertically downward, the force can be decomposed into two equal forces F2, the direction is the downward direction of the first driven member 20 and the second driven member 30, the first laminating member 50 is analyzed first, the first laminating member 50 is subjected to a downward force F2 along the first driven member 20, the driving member 10 moves downward, so that the first laminating member 50 and the second laminating member 60 move in opposite directions, the elastic member 70 is elongated, so that the two laminating members are subjected to an opposite pulling force F3, and the pushing force F2 of the first driven member 20 on the first laminating member 50 and the pulling force F3 of the elastic member 70 on the first laminating member form a vertically downward resultant force F to act on the first laminating member 50. Because the first pressing member 50 and the second pressing member 60 are stressed symmetrically in the horizontal direction, the second pressing member 60 is also stressed by a vertically downward force F, so that a vertically downward pressure is generated on the film material 240 and the substrate 150 during the opposite movement of the first pressing member 50 and the second pressing member 60, the connection between the film material 240 and the substrate 150 is tighter, and bubbles can be prevented from being generated during the attaching process.

As shown in fig. 8, the top of the attaching base 200 used for attaching in this embodiment has a groove 140, the top of the groove 140 has an opening, the bottom of the groove 140 matches with the shape of the substrate 150, a layer of teflon 130 is placed at the bottom of the groove 140, and the top of the attaching base 200 has an annular supporting position 120 around the groove 140. The bottom of the groove 140 is used for fixing the substrate 150, and the teflon 130 at the bottom of the groove 140 is flexible and has a smooth surface, so that scratching caused by friction between the substrate 150 and the bonding base 200 can be prevented, and the substrate 150 can be prevented from being cracked due to uneven stress in the rolling process.

As shown in fig. 9, a roll-on-roll 300 provided in this embodiment includes a roll 220, a protective film 260 and a plurality of films 240 with display and touch functions, wherein the films 240 are uniformly and intermittently distributed on the protective film 260.

In the present embodiment, the materials of the driving member 10, the first driven member 20, and the second driven member 30 are all alloy steels, and in other embodiments, the materials of the driving member 10, the first driven member 20, and the second driven member 30 may be other corrosion-resistant rigid bodies having a small deformation amount.

In this embodiment, the first and second bonding members 50 and 60 are cylindrical rollers, the height of the cylindrical rollers is greater than the length of the substrate 150, and the radius of the cylindrical rollers is less than or equal to the minimum radius of curvature of the curved portion of the substrate 150, so that the height and radius of the rollers vary with the size of the substrate 150 being processed. In other embodiments of the present invention, the roller can be replaced by other tools that can be pressed together, such as a sliding piece with a smooth arc-shaped top end.

In the present embodiment, the elastic member 70 is a spring, and in other embodiments of the present invention, the elastic member 70 may also be a device that can deform under a force and has a restoring force, such as a pneumatic device or a hydraulic device.

As shown in fig. 10, in an embodiment, the attaching method includes the following steps:

step S10: a substrate is placed in a groove of a bonding base.

Step S20: the roll 300 is loaded and suspended at the opening of the groove of the mount base 200, so that the film 240 faces the substrate 150.

Specifically, the roll label 300 rotates to load the film 240 to the supporting position 120 above the laminating base 200, which is just opposite to the substrate 150, and the center line of the film 240 is right above the center line of the substrate 150.

Step S30: and locking the driving part and the first driven part, and pressing the first driven part to enable the first pressing part to abut against the membrane material and pre-attach the first part of the membrane material to the substrate.

Specifically, as shown in fig. 6, the driving member 10 rotates clockwise around the top end rotating shaft thereof, when the driving member 10 rotates to be in the same straight line with the first driven member 20, the rotation stops, the fixing member fixes the driving member 10 and the first driven member 20, and the driving member 10 rotates counterclockwise around the top end rotating shaft thereof by a certain angle, so as to ensure that the second pressing member does not contact with the film material in the pre-bonding process; the driving part 10 moves horizontally to the right, so that the first pressing part 50 moves to the position above the central line of the membrane material 240, the driving part 10 moves downwards, the first pressing part 50 presses the central line part of the membrane material 240 onto the substrate 150, the driving part 10 moves left and right, the first pressing part 50 is driven to roll near the central line of the substrate 150, pre-lamination is completed, the driving part rises to the initial position, and at the moment, the top end of the driving part is positioned right above the central point of the substrate 150. In the pre-fitting process, the left and right fitting distances of the central line are equal, and the pre-fitting length is slightly larger than the distance between the first pressing piece 50 and the second pressing piece 60 in a natural state.

Step S40: and unlocking the driving piece and the first driven piece to enable the first pressing piece and the second pressing piece to be located right above the first part of the membrane material.

Specifically, the fixing member 80 disconnects the driving member 10 and the first driven member 20, the driving member 10 rotates counterclockwise around the top end rotating shaft thereof, and returns to the vertical state, the first driven member 20 and the second driven member 30 return to the initial positions, the angles of the two driven members are equal to the angle of the driving member 10, and the driving member 10 is located right above the central line of the substrate 150.

Step S50: and pressing the driving piece to enable the first pressing piece and the second pressing piece to move in opposite directions, so that the pressing film materials are fully attached.

Specifically, as shown in fig. 7, the driving member 10 moves downward, and after the first pressing member 50 and the second pressing member 60 contact the substrate 150, opposite rolling is started, and the film material 240 and the substrate 150 are pressed from the middle of the substrate 150 to two curved edges until the film material 240 and the substrate 150 are completely attached. The driving part 10 moves upwards to reset, in the process that the driving part 10 moves upwards, the first pressing part 50 and the second pressing part 60 return to the plane from the curved surface of the base material 150, the elastic part 70 returns from the stretching state, and in the process, the pressing parts return to roll the membrane material 240 and the base material 150 again, so that the attaching quality is further improved.

According to the laminating device and the laminating method, the central lines of the film material 240 and the substrate 150 are firstly laminated by the laminating device 100, then the film material 240 and the substrate 150 are laminated by the two pressing pieces from the middle to the two curved edges, on the premise that the width of the film material 240 is not reduced, the problem that the middle plane area cannot be laminated due to the fact that the edges of the film material 240 and the substrate 150 are firstly laminated during laminating is solved, and the laminating of the bent parts of the film material 240 and the substrate 150 is achieved. By using the method and the device, the substrate 150 can be subjected to ultra-narrow frame design and lamination, and the curved surface range can be enlarged without influencing the design of touch control and display.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the spirit of the invention, which falls within the scope of the invention, and therefore the scope of the invention is to be determined by the appended claims.