TWI805317B - Film adhering apparatus and film adhering method - Google Patents

Abstract

The present disclosure provides a film adhering apparatus for adhering a film to a target item, including a pre-adhering part, an adhering part, and a fluid control device. The pre-adhering part includes a connecting rod. The connecting rod can be movable or telescopic and is used for acting on the film to make part of the film contact a preset position on the target item. The adhering part includes an annular elastomer with a closed annular chamber. The annular elastomer is on the connecting rod and the annular chamber surrounds the connecting rod. The fluid control device is connected to the annular chamber. The fluid control device is used for injecting or pumping fluid to make the annular chamber expanding or contracting along at least a radial direction. When the fluid control device injects fluid into the annular chamber, the annular elastomer expands away from the connecting rod to make the film gradually adhering on the target item from the preset position. The present disclosure also provides a film adhering method.

Description

Film sticking device and film sticking method

The application relates to a film sticking device and a film sticking method.

Conventional film sticking devices, when applied to curved surfaces, usually can only use rollers to fit developable curved surfaces, that is, curved surfaces that can be unfolded into a plane. For non-developable curved surfaces, an additional laminating jig that matches the contour of the non-developable curved surface is usually prepared for lamination. There are air bubbles between the products, and residual stress at the edge of the lamination film will cause additional air bubbles during subsequent quality inspections.

On the one hand, the present application provides a film sticking device, which is used to stick the sticking film to the object to be stuck, which includes: a pre-sticking part, including a connecting rod, the connecting rod is movable or stretchable, and is used to act on the The laminating film makes the part of the laminating film contact the preset position on the object to be pasted; the laminating part includes an annular elastic body with a closed annular cavity, and the annular elastic body is sleeved on the On the connecting rod, the annular cavity surrounds the connecting rod; and a fluid control device communicates with the annular cavity for injecting or extracting fluid into the annular cavity for controlling the annular elastic The body expands or contracts at least in the radial direction; when the fluid control device injects fluid into the annular cavity, the annular elastic body expands in a direction away from the connecting rod, so that the bonding film is separated from the The preset position starts to be attached to the object to be attached gradually.

In an embodiment, the pre-lamination part further includes a mechanical arm, and the mechanical arm is used to control the movement of the connecting rod.

In one embodiment, the pre-attachment part further includes a flexible probe, and the flexible probe is arranged at one end of the connecting rod close to the object to be attached, and is used to attach the part at the preset position. The composite film is attached to the object to be pasted.

In one embodiment, the pre-attaching part further includes a displacement sensor for sensing whether the connecting rod attaches the attaching film to the object to be attached.

In an embodiment, the pre-lamination part further includes an image sensor, and the image sensor is used to obtain the position of the connecting rod relative to the object to be pasted.

In one embodiment, the fluid control device includes a fluid storage device, a fluid pump and at least one hose; the fluid storage device is used to store the fluid, and the hose is used to communicate with the annular cavity and The fluid storage device and the fluid pump are used to control the flow direction and flow velocity of the fluid in the hose, so as to inject or extract the fluid into the annular cavity.

In one embodiment, the fluid control device includes a plurality of hoses, each of the hoses communicates from the fluid storage device to different positions of the annular cavity, and the fluid pump controls each A flow direction and a flow velocity of the fluid in the hose, thereby controlling the expansion or contraction velocity at different positions of the annular elastic body.

In one embodiment, the fluid control device further includes a temperature adjusting device, configured to adjust the temperature of the fluid, thereby adjusting the temperature of the annular elastic body.

In one embodiment, the film sticking device further includes a stage for supporting the object to be pasted.

In one embodiment, the stage is made of a ferromagnetic material, and the fluid is a magnetic fluid, and the stage is used to, when the annular cavity is filled with the fluid, The fluid is attracted to increase the pressure between the annular elastic body and the object to be stuck.

In one embodiment, the film sticking device further includes a controller, the controller is electrically connected to the fluid control device and the pre-lamination part, and is used to control the movement of the connecting rod and to control the The volume and rate of fluid flow into the annular cavity.

In one embodiment, the bonding part further includes a temperature sensor for sensing the temperature of the fluid in the annular cavity.

Another aspect of the present application provides a film sticking method, which includes: providing the above-mentioned film sticking device and a sticking film, and fixing the sticking film between the object to be stuck and the connecting rod; moving the connecting rod so that the sticking film part contacts the preset position on the object to be pasted; injecting fluid into the annular cavity to expand the annular elastic body in the radial direction, so that the The affixed film is gradually attached to the object to be affixed from the preset position.

In one embodiment, the step of injecting fluid into the annular cavity further includes: adjusting the rate of fluid injection or the annular cavity, so as to control the expansion or contraction rate of the annular elastic body.

In one embodiment, the step of injecting fluid into the annular cavity further includes: adjusting the temperature of the fluid, so as to control the temperature when the bonding film sticks the object to be stuck.

In the film sticking device and film sticking method provided in the embodiments of the present application, by setting the bonding part to include an annular elastic body with an annular cavity, and by injecting fluid into the annular cavity, the annular elastic body can be expanded, And take the preset position on the object to be pasted as the starting point to extend around, so as to drive the laminating film to attach to the object to be pasted, which can avoid additional setting of matching lamination according to the curved surface shape of the object to be pasted Fixtures are beneficial to save costs.

100:Film sticking device

10: Pre-lamination department

11: connecting rod

13: Mechanical arm

15: Flexible probe

17: Image sensor

19: Displacement sensor

30:Fitting part

31: ring elastomer

310: Annular cavity

33: Temperature sensor

50: Fluid control device

51: Fluid storage device

53: Fluid pump

55: Hose

57: Temperature adjustment device

71: Stage

73: support frame

90: Controller

A, A1, A2: Items to be posted

B: laminating film

L: Fluid

X: first direction

Y: the second direction

Z: third direction

S10, S20, S30: steps

FIG. 1 is a structural diagram of a film sticking device according to an embodiment of the present application.

FIG. 2 is a schematic diagram of an electrical connection structure of a film sticking device according to an embodiment of the present application.

FIG. 3 is a flow chart of a film sticking method according to an embodiment of the present application.

FIG. 4 is a working state diagram of the film sticking device according to an embodiment of the present application.

Fig. 5 is a structural diagram of the working process of the film sticking device according to an embodiment of the present application.

FIG. 6 is a structural diagram of the working process of a film sticking device according to another embodiment of the present application.

Fig. 7 is a structural diagram of the working process of the film sticking device according to another embodiment of the present application.

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them.

Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used in the description of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application.

In order to further explain the technical means and effects adopted by the present invention to achieve the intended purpose, the following detailed description of the present application will be given in conjunction with the accompanying drawings and preferred implementation modes.

An embodiment of the present application provides a film sticking device, which is used for sticking a sticking film to an object to be stuck. Please refer to FIG. 1 , the film sticking device 100 includes: a pre-laminating part 10 , a bonding part 30 and a fluid control device 50 . The pre-lamination part 10 includes a connecting rod 11, the connecting rod 11 is movable, and is used to act (butt against) the laminating film B when moving along the second direction Y, so as to bond part of the laminating film B to the object to be pasted Preset position on A. The fitting part 30 includes an annular elastic body 31 with a closed annular cavity 310 , the annular elastic body 31 is sheathed on the connecting rod 11 , and the annular cavity 310 surrounds the connecting rod 11 . The fluid control device 50 communicates with the annular cavity 310, and is used to inject or draw fluid L into the annular cavity 310, so as to control the annular elastic body 31 at least in the radial direction (ie, the first direction X and the third direction Z in FIG. 1 The plane perpendicular to the second direction Y) expands or contracts. When the fluid control device 50 injects fluid L into the annular cavity 310, the annular elastic body expands in the direction away from the connecting rod 11 in the radial direction and squeezes the Lay the film so that the laminating film B is gradually attached to the object A to be pasted from the preset position.

In this embodiment, the pre-lamination unit 10 further includes a mechanical arm 13 , a flexible probe 15 , an image sensor 17 and a displacement sensor 19 . The mechanical arm 13 is used to clamp the connecting rod 11 for controlling the displacement of the connecting rod 11 relative to the object A to be pasted. Specifically, the mechanical arm 13 can control the connecting rod 11 to move in the second direction Y close to or away from the object A to be pasted, and control the connecting rod 11 to move on a plane perpendicular to the second direction Y, that is, the first direction The plane where X and the third direction Z are located. Therefore, the connecting rod 11 can move relative to the object A to be pasted under the control of the mechanical arm 13, so that the end of the connecting rod 11 near the object A to be pasted can be aligned with any position on the object A to be pasted, so as to connect The rod 11 is aligned with said preset position.

In this embodiment, the mechanical arm 13 can move the connecting rod 11 in the second direction Y by means of mechanical transmission, such as relying on friction or gears, so as to approach or move away from the object A to be pasted. In another embodiment, the mechanical arm 13 and the connecting rod 11 can be fixedly connected, and the connecting rod 11 is driven to approach or move away from the object A to be pasted synchronously by controlling the movement of the mechanical arm 13 in the second direction Y. In yet another embodiment, the connecting rod 11 itself can also be a telescopic rod with variable length. By contracting the connecting rod 11 itself, the end of the connecting rod 11 close to the object A to be pasted can move in the second direction Y. The present application is not limited to this, as long as the end of the connecting rod 11 close to the object A to be pasted can move in the second direction Y.

In this embodiment, the robotic arm 13 can be a multi-axis robotic arm, such as a four-axis robotic arm, so that the connecting rod 11 can move in the first direction X. In other embodiments, the mechanical arm 13 may also include The mechanical transmission device enables the connecting rod 11 to move in the first direction X through mechanical transmission. The present application does not limit this, and the mechanical arm 13 may also be other mechanical devices that move the connecting rod 11 in the first direction X.

In this embodiment, the flexible probe 15 is set at the end of the connecting rod 11 close to the object A to be pasted. When the connecting rod 11 drives the bonding film B part to contact the preset position on the object A to be pasted, the flexible probe 15 will fit The film B is pressed onto the object A to be pasted, and the part of the pasted film B at the preset position matches the shape of the object A to be pasted. Specifically, the flexible probe 15 can be made of an elastic material such as silicon rubber. When the connecting rod 11 moves to the object A to be pasted, the flexible probe 15 first contacts the bonding film B and generates a direction toward the bonding film B. The pressure of the object A to be pasted makes the bonding film B and the flexible probe 15 move toward the object A to be pasted until the part of the bonding film B covered by the flexible probe 15 contacts the preset position on the object A to be pasted. The flexible probe 15 is deformed by the pressure transmitted by the connecting rod 11, so that the part close to the object A to be pasted matches the contour of the surface of the object A to be pasted, and the part between the flexible probe 15 and the object A to be pasted is attached to the film B is also deformed, so that it can be attached to the object A to be attached, and the pre-attachment of the adhesive film B can be realized. In this embodiment, the state of pre-bonding is that the part of the bonding film B corresponding to the flexible probe 15 is in contact with the preset position of the object A to be pasted, but the other parts of the bonding film B are not attached to the object A to be pasted status.

In this embodiment, the image sensor 17 is arranged on the mechanical arm 13 for obtaining the position of the connecting rod 11 relative to the object A to be pasted. Specifically, the image sensor 17 is arranged on the position where the mechanical arm 13 is used to clamp the connecting rod 11, and faces the object A to collect the image of the object A to be pasted. When the mechanical arm 13 controls the connecting rod 11 to When moving in one direction X, the image sensor 17 and the connecting rod 11 move simultaneously, so that the image received by the image sensor 17 changes, and then the position change of the connecting rod 11 relative to the object A to be pasted can be judged. The image sensor 17 may be a charge-coupled device (Charge-coupled Device, CCD) or other image acquisition devices. In other embodiments, the image sensor 17 can also be arranged at other positions, and simultaneously collect images of the connecting rod 11 and the object A to be pasted, so as to determine the relative position between the connecting rod 11 and the object A to be pasted, so as to facilitate Adjust the position of the connecting rod 11.

In this embodiment, the displacement sensor 19 is disposed on the mechanical arm 13 for sensing whether the connecting rod 11 drives the bonding film B to touch the object A to be pasted. Specifically, when the connecting rod 11 moves toward the object A to be pasted, the displacement sensor 19 can detect the moving state of the connecting rod 11, and when the flexible probe 15 presses the bonding film B onto the object A to be pasted , the movement of the connecting rod 11 stops. At this time, the displacement sensor 19 can detect that the connecting rod 11 stops moving, so that it can be judged that the connecting rod 11 has driven the part B of the bonding film to be bonded to the preset position of the object A to be pasted, so that it can be A sensing signal is sent to stop driving the connecting rod 11 and to carry out subsequent bonding operation. In other embodiments, the displacement sensor 19 can also be arranged in other positions, for example It is directly arranged on the connecting rod 11 , and the displacement is judged by sensing the relative position between the end of the connecting rod 11 close to the object A to be pasted and the mechanical arm 13 . The displacement sensor 19 can also be a light detector, by being arranged on a plane parallel to the surface of the preset position of the object A to be stuck, to detect whether the connecting rod 11 drives the sticking film B to stick to the preset position. That is to say, other devices that can detect whether the connecting rod 11 drives the part of the bonding film B to be bonded to the preset position of the object A by displacement can be considered as the displacement sensor 19, which is not limited in the present application.

The film sticking device 100 provided in the embodiment of the present application can stick the part B of the sticking film to the object to be sticked before the formal sticking by setting the pre-sticking part 10 including the connecting rod 11 and other parts matching the connecting rod 11 The preset position of A provides a starting point for bonding, which is convenient for subsequent bonding operations. Wherein, the preset position can be any position on the surface of the object A to be pasted, and its preferred solution is the most favorable position for bonding, such as the highest point of the object A to be pasted in the second direction Y (that is, the highest point on the second direction Y). The electrode closest to the flexible probe 15 in the second direction Y, or the geometric center of the projected object A in the second direction Y, etc., are not limited in this application.

In this embodiment, the bonding portion 30 includes an annular elastic body 31 . Specifically, the annular elastic body 31 can be made of elastic material such as rubber, and the annular cavity 310 opened inside it is concentric with the annular elastic body 31 . When the fluid L is injected into the annular cavity 310, since the annular elastic body 31 is elastic, it will expand radially under the pressure of the fluid L, that is, both the inner diameter and the outer diameter of the annular elastic body 31 will increase. .

In this embodiment, the annular elastic body 31 is sleeved on the end of the connecting rod 11 close to the object A to be pasted. Injecting the fluid L can cause the annular elastic body 31 to expand, and fall off from the connecting rod 11 to the bonding film B. Continue to inject the fluid L, and the annular elastic body 31 can continue to move away from the connecting rod 11 from the preset position. expansion, thereby driving the lamination film B to carry out the lamination process, and when the fluid L is drawn out from the annular cavity 310, under the action of the elastic force, the annular elastic body 31 will shrink radially, and finally re-sleeved in the connection on pole 11.

In this embodiment, the fluid control device 50 includes a fluid storage device 51 , a fluid pump 53 , at least one hose 55 and a temperature adjustment device 57 . Wherein the fluid storage device 51 is used to store the fluid L, the hose 55 is used to communicate with the fluid storage device 51 and the annular cavity 310, and the fluid pump 53 is used to control the flow direction and flow velocity of the fluid L in the hose 55, so as to achieve Fluid L is injected or extracted into the annular cavity 310 .

In this embodiment, the fluid storage device 51 is arranged on the side of the connecting rod 11 away from the object A to be pasted, and the temperature adjustment device 57 is arranged in the fluid storage device 51 for adjusting the temperature of the fluid L, thereby adjusting the temperature of the annular elastic body 31. temperature.

In this embodiment, one end of the hose 55 is connected to the fluid storage device 51 , the other end is connected to the annular elastic body 31 , and communicates with the annular cavity 310 , thereby communicating the fluid storage device 51 and the annular cavity 310 .

In this embodiment, the fluid pump 53 is disposed on the hose 55 to control the flow direction and flow speed of the fluid L. In other embodiments, the fluid pump 53 can also be arranged in the fluid storage device 51 and communicate with the hose 55; the fluid pump 53 can also be arranged in any other position that can control the injection or extraction of the fluid L into or out of the annular cavity 310. Applications are not limited to this.

In this embodiment, the connecting rod 11 is a hollow structure for accommodating part of the hose 55. The hose 55 is connected into the connecting rod 11 from the end of the connecting rod 11 away from the object A to be pasted, and extends to the connecting rod 11 close to One end of the object A to be pasted is thus connected to the annular elastic body 31 sheathed on the connecting rod 11 . In other embodiments, the hose 55 may also be disposed outside the connecting rod 11 , which is not limited in the present application.

In this embodiment, there are four hoses 55 , and each hose 55 is respectively connected from the fluid storage device 51 to different positions on the annular elastic body 31 , so as to communicate with different positions of the annular cavity 310 . The fluid pump 53 respectively controls the flow direction and flow velocity of the fluid L in each hose 55 , thereby controlling the expansion or contraction velocity at different positions of the annular elastic body 31 . Specifically, the part of the annular cavity 310 communicated with the hose 55 is firstly filled with the fluid L, and the corresponding part of the annular elastic body 31 is the first to expand. Therefore, by setting different positions of the annular cavity 310 respectively It communicates with the hose 55 to control the expansion degree of each position of the annular elastic body 31 . Wherein, it is a preferred solution to arrange four hoses 55 and divide the annular cavity 310 into four equal parts at the connection between the hoses 55 and the annular cavity 310 . In other embodiments, the number of hoses 55 can be any number of two or more, and the plurality of hoses 55 communicate with different positions of the annular cavity 310 respectively.

In this embodiment, please refer to FIG. 2 , the bonding part 30 further includes a temperature sensor 33 for sensing the temperature of the fluid L in the annular cavity 310 so as to monitor the temperature during film bonding. The temperature sensor 33 can be arranged in the annular cavity 310, or be arranged on the annular elastic body 31, or be arranged at other positions that can sense the temperature of the fluid L in the annular cavity 310, such as an infrared temperature measuring device, which can be separated from the annular The temperature is measured when the elastic body 31 is in contact, which is not limited in the present application. In other embodiments, when the specific heat capacity of the fluid L is large, the fluid L is injected into the annular cavity from the fluid storage device 51 The temperature after 310 will not change greatly, so the temperature sensor 33 can also be arranged in the hose 55 or in the fluid storage device 51 .

In this embodiment, please continue to refer to FIG. 1 , the film sticking device 100 further includes a stage 71 and a support frame 73 , the stage 71 is used to support the object A to be pasted, and the support frame 73 is used to support the film B for bonding. The laminating film B supported by the support frame 73 is unfolded at a certain distance from the surface of the object A to be pasted, and the projection of the laminating film B on the stage 71 covers the object A to be pasted.

In this embodiment, the stage 71 is a ferromagnetic material, such as iron, cobalt, nickel, etc., and the fluid L is a magnetic fluid. The stage 71 is used when the annular cavity 310 is filled with the fluid L. The annular cavity 310 can be attracted by magnetic force to increase the pressure between the annular elastic body 31 and the object A to be pasted. Wherein, the fluid L can be a liquid mixed with magnetic sand, or a magnetic fluid. In another embodiment, the stage 71 may also be magnetic, so as to enhance the magnetic force with the fluid L in the annular cavity 310 . In yet another embodiment, the fluid L may also be non-magnetic, and the annular elastic body 31 may generate pressure on the sticker A by the gravity of the fluid L. By increasing the pressure between the annular elastic body 31 and the object A to be pasted when it expands, the bonding film B can be better bonded to the object A to be pasted, thereby improving the effect of pasting the film.

In this embodiment, please refer to FIG. 2 , the film sticking device 100 further includes a controller 90, the controller 90 is electrically connected to the fluid control device 50 and the pre-lamination part 10, and is used to control the movement of the connecting rod 11 and to control the flow of the fluid. The volume and rate at which L flows into the annular cavity 310 . Specifically, the controller 90 is electrically connected to the mechanical arm 13 , the image sensor 17 , the temperature sensor 33 , the fluid pump 53 and the temperature adjustment device 57 .

In this embodiment, the controller 90 is used for receiving the image signal sent by the image sensor 17, and judging the relative position between the connecting rod 11 and the object A to be pasted according to the image signal, and identifying the object A to be pasted image and select a preset position for pre-fitting.

In this embodiment, the controller 90 is also used to control the movement of the mechanical arm 13 , thereby controlling the position of the connecting rod 11 . The displacement sensor 19 senses the displacement of the connecting rod 11 to determine whether the bonding film B is partially bonded to the preset position on the object A to be pasted under the drive of the connecting rod 11. If the bonding film B has been partially bonded On the object A to be pasted, the displacement sensor 19 will transmit the signal to the controller 90, and the controller 90 will stop the movement of the mechanical arm 13 and execute the pasting process, that is, control the fluid pump 53 to inject fluid into the annular cavity 310 L.

In this embodiment, the controller 90 is also used to receive the temperature signal of the fluid L transmitted by the temperature sensor 33 , and transmit an electric signal to the temperature adjusting device 57 according to the temperature signal to adjust the temperature of the fluid L.

The film sticking device 100 provided in the embodiment of the present application can pre-stick the object A to be stuck by setting the pre-sticking part 10, so as to facilitate the subsequent sticking step. By setting the bonding part 30 to include the annular elastic body 31, and by injecting fluid into the annular cavity 310, the annular elastic body 31 can be expanded in the radial direction, thereby driving the bonding film B to be bonded to the object A to be bonded , this process does not need to consider the shape of the surface of the object A to be pasted, that is, the bonding part 30 does not need to match the shape of the surface of the object A to be pasted. Sticking film is beneficial to save cost.

The embodiment of the present application also provides a film sticking method, please refer to Fig. 3, which includes: step S10: provide the above film sticking device and a laminating film, and fix the laminating film between the object to be pasted and the connecting rod; step S20 : moving the connecting rod so that the laminating film part contacts the preset position on the object to be pasted; Step S30: injecting fluid into the annular cavity to expand the annular elastic body in the radial direction so that the sticking film is gradually attached to the object to be stuck from the preset position.

In this embodiment, please continue to refer to FIG. 1, step S20 specifically includes: S21: Obtain the position of the connecting rod 11 relative to the object A to be attached, and set a preset position; S22: Move the connecting rod in the first direction X 11, aligning it with the preset position on the object A to be attached; S23: moving the connecting rod 11 in the second direction Y to move it toward the object A to be attached; S24: placing the adhesive on the flexible probe 15 After the composite film B is pressed onto the object A to be pasted, stop moving the connecting rod 11.

In this embodiment, please refer to FIG. 4 and FIG. 5 together. Step S30 specifically includes: S31: Inject fluid L into the annular cavity 310, so that the annular elastic body 31 begins to expand on the connecting rod 11 and adheres to the membrane B contact; S32: Continue to inject the fluid L into the annular cavity 310 to expand the annular elastic body 31 in the radial direction, so as to gradually attach the bonding film B to the object A to be pasted.

In this embodiment, after step S30, it also includes: extracting the fluid L from the annular cavity 310, making the annular elastic body 31 shrink gradually until it is re-sleeved on the connecting rod 11, and moving the connecting rod 11 to move away from it. Move in the direction of the object A to be posted. That is, after the film sticking is finished, the process of restoring the film sticking device 100 is also included, so as to facilitate the sticking again.

In an embodiment, step S30 further includes: adjusting the temperature of the fluid L so that the annular elastic body 31 reaches an optimum fitting temperature. Specifically, when the bonding film B is bonded to the object A to be bonded, different bonding temperatures will have different effects on the optical quality after bonding. For example, when the bonding temperature is lower than the optimum When laminating temperature, there will be ripples on the laminated product, which will affect the optical performance of the product. Therefore, the optimum bonding temperature is the temperature at which the optical performance of the product is best after bonding.

In an embodiment, step S30 further includes: adjusting the temperature of the fluid L so that the annular elastic body 31 reaches a pre-shrinking temperature. Specifically, when the bonding film B is bonded to the object A for quality inspection, the bonding film B will shrink in a high-temperature environment, thereby making the bonded product invalid. Therefore, when the product needs to work under high temperature conditions, the temperature of the annular elastic body 31 can be set to the temperature at which the bonding film B will shrink during the film bonding process, so as to perform pre-shrinkage before bonding to the object A to be bonded , so as to avoid shrinkage after bonding and affect product quality.

In this embodiment, the above two steps of adjusting the temperature of the fluid L are optional embodiments. In other embodiments, the temperature of the fluid L can also be adjusted according to the needs of the product, which is not limited in this application.

In this embodiment, step S30 also includes: adjusting the speed at which the fluid L fills into the annular cavity 310, thereby controlling the expansion speed of the annular elastic body 31, and then controlling the speed when the bonding film B is bonded to the object A. speed. Specifically, when the bonding film B is bonded to the edge of the object A to be bonded, since the stress generated during the bonding process will remain in the bonding film B, if the bonding speed is too fast, the stress cannot be released. It is easy to produce edge bubbles after lamination. Therefore, by controlling the expansion speed of the annular elastic body 31, the stress in the bonding film B can be released when bonding to the edge of the object A to be bonded, thereby reducing the risk of air bubbles after bonding.

In another embodiment, referring to FIG. 6 , the object A1 to be attached is a concave surface, and at this time, the annular elastic body 31 can also attach the film B to the surface of the object A1 by expanding radially. Its flow is the same as that in this embodiment.

In yet another embodiment, please refer to FIG. 7 , the object A2 to be pasted is a curved surface with a special shape, that is, the extending direction of the surface is discontinuous. When bonding the bonding film B to the surface of the object A2, the fluid L can be injected into the annular cavity 310 to expand the annular elastic body 31; The elastic body 31 shrinks, so that the bonding film B is completely bonded to the object A2 to be bonded.

To sum up, the film sticking method provided by the embodiment of the present application can improve the product quality according to the needs of the product by changing the temperature of the annular elastic body 31; by changing the deformation speed of the annular elastic body 31, the film B can be reduced The remaining stress in the medium improves the product quality; by changing the deformation direction (expansion or contraction) of the annular elastic body 31, the film sticking device 100 can be applied to objects with different shapes to be pasted, which is beneficial to save costs.

Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention, as long as within the scope of the spirit of the present invention, appropriate changes made to the above embodiments And changes all fall within the scope of protection of the present invention.

100:Film sticking device

10: Pre-lamination department

11: connecting rod

13: Mechanical arm

15: Flexible probe

17: Image sensor

19: Displacement sensor

30:Fitting part

31: ring elastomer

310: Annular cavity

50: Fluid control device

51: Fluid storage device

53: Fluid pump

55: Hose

57: Temperature adjustment device

71: Stage

73: support frame

A: Items to be posted

B: laminating film

L: Fluid

X: first direction

Y: the second direction

Z: third direction

Claims (15)

A film sticking device, which is used to stick a sticking film to an object to be stuck, comprising: a pre-fitting part, including a connecting rod, the connecting rod is movable or telescopic, and is a hollow structure, used to act on the The laminating film makes the part of the laminating film contact the preset position on the object to be pasted; the laminating part includes an annular elastic body with a closed annular cavity, and the annular elastic body is sleeved on the On the connecting rod, the annular cavity surrounds the connecting rod; and a fluid control device communicates with the annular cavity for injecting or extracting fluid into the annular cavity for controlling the annular elastic body expand or contract at least radially; the fluid control device includes a fluid storage device, a fluid pump and a plurality of hoses; when the fluid control device injects fluid into the annular cavity, the annular elastic body moves away from the Expand in the direction of the connecting rod, so that the lamination film is gradually attached to the object to be pasted from the preset position; wherein, the connecting rod is used to accommodate a part of the plurality of hoses, so The plurality of hoses are connected into the connecting rod from the end of the connecting rod away from the object to be pasted, and extend to the end of the connecting rod close to the object to be pasted, so as to be sleeved on the connecting rod The annular elastic body on the rod is connected, and the number of the hoses is multiple, and each hose is respectively connected to different positions on the annular elastic body from the fluid storage device, by setting the Different positions of the annular cavity are respectively communicated with the plurality of hoses, so that the expansion degree of each position of the annular elastic body can be controlled. The film sticking device according to claim 1, wherein the pre-lamination part further includes a mechanical arm, and the mechanical arm is used to control the movement of the connecting rod. The film sticking device according to claim 1, wherein the pre-lamination part further includes a flexible probe, and the flexible probe is arranged at the end of the connecting rod close to the object to be pasted, for making the preset position The part of the bonding film on the surface is bonded to the object to be pasted. The film sticking device according to any one of claims 1 to 3, wherein the pre-laminating part further includes a displacement sensor for sensing whether the connecting rod sticks the sticking film to the stickers. The film sticking device according to claim 4, wherein the pre-laminating part further includes an image sensor, and the image sensor is used to acquire the position of the connecting rod relative to the object to be pasted. The film sticking device according to claim 1, wherein the fluid storage device is used to store the fluid, the hose is used to communicate with the annular cavity and the fluid storage device, and the fluid pump is used to control The flow direction and flow velocity of the fluid in the hose, so as to inject or extract the fluid into the annular cavity. The film sticking device according to claim 6, wherein the fluid control device includes a plurality of hoses, and each of the hoses is respectively connected from the fluid storage device to different positions of the annular cavity, so The fluid pump separately controls the flow direction and flow velocity of the fluid in each of the hoses, thereby controlling the expansion or contraction velocity at different positions of the annular elastic body. The film sticking device according to claim 6, wherein the fluid control device further includes a temperature adjustment device for adjusting the temperature of the fluid, thereby adjusting the temperature of the annular elastic body. The film sticking device according to claim 1, further comprising a stage for supporting the object to be pasted. The film sticking device according to claim 9, wherein the stage is made of a ferromagnetic material, the fluid is a magnetic fluid, and the stage is used to fill the annular cavity with the When using fluid, the fluid is attracted by magnetic force to increase the pressure between the annular elastic body and the object to be pasted. The film sticking device according to claim 1, wherein the film sticking device further includes a controller, the controller is electrically connected to the fluid control device and the pre-lamination part respectively, and is used to control the movement of the connecting rod. moves and serves to control the volume and rate of flow of the fluid into the annular cavity. The film sticking device according to claim 1, wherein the bonding part further includes a temperature sensor for sensing the temperature of the fluid in the annular cavity. A film sticking method, comprising: providing a film sticking device and a sticking film as described in any one of claims 1 to 12, and fixing the sticking film between the object to be sticked and the connecting rod; moving the connecting rods, so that the laminating film part contacts the preset position on the object to be pasted; Injecting fluid into the annular cavity to expand the annular elastic body in the radial direction, so that the adhesive film is gradually attached to the object to be attached from the preset position. The film sticking method according to claim 13, wherein the step of injecting fluid into the annular cavity further includes: adjusting the rate of fluid injection or the annular cavity, thereby controlling the expansion or expansion of the annular elastic body The speed of shrinkage. The film sticking method according to claim 13, wherein the step of injecting fluid into the annular cavity further includes: adjusting the temperature of the fluid, so as to control the temperature when the sticking film sticks the object to be stuck .

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