CN114132556B

CN114132556B - Film pasting device, automatic film pasting production line and film pasting method

Info

Publication number: CN114132556B
Application number: CN202111618078.6A
Authority: CN
Inventors: 徐波; 赵连军; 王锋辉
Original assignee: Beige Weifang Intelligent Technology Co ltd; Goertek Inc
Current assignee: Beige Weifang Intelligent Technology Co ltd; Goertek Inc
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2023-07-14
Anticipated expiration: 2041-12-27
Also published as: CN114132556A

Abstract

The invention discloses a film pasting device, an automatic film pasting production line and a film pasting method, wherein the film pasting device comprises a first pickup part, a second pickup part and a driving device, wherein the first pickup part and the second pickup part are used for correspondingly picking up two opposite ends of a protective film along a first direction, the first pickup part is provided with a movable stroke at least in a second direction so as to drive one end of the protective film to be attached to one side of a product surface, the second pickup part is provided with a movable stroke with components in the first direction and the second direction so as to drive the other end of the protective film to be gradually close to the product surface in the first direction and the second direction, and therefore the protective film is gradually attached to the product surface from one end to the other end, and the driving device drives the first pickup part and the second pickup part to move.

Description

Film pasting device, automatic film pasting production line and film pasting method

Technical Field

The invention relates to the technical field of film sticking, in particular to a film sticking device, an automatic film sticking production line and a film sticking method.

Background

In the production of products, in particular electronic products, it is nowadays often necessary to apply a film treatment to a part of the surface. For example, in order to ensure the optical performance of the screen of an electronic product, the existing film pasting mode requires no dust, no bubbles and no wrinkles in the film pasting process, each point on the film is simultaneously contacted with the screen during film pasting, a small amount of air is trapped in the film at the center of the screen to form bubbles, the film pasting qualification rate is reduced, and particularly, the film pasting effect is difficult to control.

Disclosure of Invention

The invention mainly aims to provide a film pasting device, an automatic film pasting production line and a film pasting method, and aims to change the film pasting mode from the mode that each point is simultaneously contacted with the surface of a product to the mode that the film pasting mode is sequentially contacted with the surface of the product along with the time, so that air bubbles are prevented from being formed in the film pasting process.

In order to achieve the above object, the present invention provides a film sticking apparatus, comprising:

the first pick-up part and the second pick-up part are used for correspondingly picking up two opposite ends of the protective film along a first direction, the first pick-up part is provided with a movable stroke at least along a second direction so as to drive one end of the protective film to be attached to one side of the product surface, and the second pick-up part is provided with a movable stroke with components along the first direction and the second direction so as to drive the other end of the protective film to be gradually close to the product surface along the first direction and the second direction, so that the protective film is gradually attached to the product surface from one end to the other end; the method comprises the steps of,

and the driving device drives the first pick-up part and the second pick-up part to move.

Optionally, the film pasting device comprises a mounting part movably arranged along a first direction and a second direction, and the second pick-up part is mounted on the mounting part;

the driving device drives the installation part to move.

Optionally, the film sticking device further comprises a mounting seat, the mounting seat is movably arranged along a first direction, and the mounting part is movably mounted on the mounting seat along a second direction;

the driving device comprises two driving parts for respectively driving the mounting seat and the mounting part to move.

Optionally, the second pick-up portion is mounted to the mounting portion by an elastic member.

Optionally, the film sticking device further includes a force sensor mounted to the mounting portion, the force sensor being connected to an end of the elastic member remote from the second pick-up portion;

the film sticking device further comprises a control device, and the control device is electrically connected with the force sensor and the driving device.

Optionally, the elastic member is a spring or a rubber member.

Optionally, the first pick-up part is a clamping jaw or a sucking disc; and/or the number of the groups of groups,

the second pick-up part is a clamping jaw or a sucking disc.

The invention also provides an automatic film pasting production line, which comprises the following steps:

the conveying belt is used for conveying a plurality of products along a first direction, and a film pasting station is arranged on the travelling track of the conveying belt; the method comprises the steps of,

the film sticking device is used for sticking films on the surfaces of products located on the film sticking station.

Optionally, the automatic film laminating production line further comprises a plurality of material bearing parts which are arranged on the conveying belt and are spaced along the first direction, the material bearing parts are used for fixing a plurality of products, and the material bearing parts can sequentially move to the film laminating station.

Optionally, each material bearing part is a sucker.

Optionally, the automatic film laminating production line further comprises a film pressing structure arranged at the film laminating station, and the film pressing structure comprises:

the film pressing plate is provided with a movable travel which is close to or far away from the film attaching station along a second direction, and the shape of the film pressing plate facing the end face of the conveying belt is used for adapting to the surface of a product;

and the lifting driving part is in driving connection with the film pressing plate so as to drive the film pressing plate to move.

Optionally, the automated film laminating line further comprises:

the film material warehouse is spaced from the film pasting station along a first direction or a second direction, and is used for storing a plurality of protective films to be pasted; the method comprises the steps of,

the film taking structure comprises a film taking part, wherein the film taking part is provided with a movable stroke which is close to or far from the film stock base along a second direction and is used for sequentially taking out the protective films in the film stock base;

the first picking part and the second picking part in the film pasting device are used for picking up the protective film on the film picking part and driving the protective film to move to the film pasting station.

The invention also provides a film pasting method based on the film pasting device, and the film pasting method comprises the following steps:

controlling the first pick-up part and the second pick-up part to pick up two opposite ends of the protective film along the first direction respectively;

and controlling the first pick-up part and the second pick-up part to move along respective movable strokes so as to drive the two ends of the protective film to be sequentially attached to the two sides of the surface of the product.

According to the technical scheme, the first pick-up part and the second pick-up part respectively pick up two opposite ends of the protective film, the first pick-up part moves along the movable stroke of the first pick-up part, so that the end part of the protective film correspondingly picked up can be firstly contacted with the surface of a product, the film pasting stroke of the second pick-up part has movable components in the first direction and the second direction, the end part of the protective film correspondingly picked up by the second pick-up part can gradually approach the surface of the product along the first direction and the second direction along the movable stroke of the second pick-up part, and finally, the film pasting process is finished after the protective film is gradually pasted from one end to the other end of the protective film through the movable strokes of the first pick-up part and the second pick-up part, and the film pasting process is not completed at the same time, so that bubbles are prevented from being formed between the protective film and the surface of the product, the protective film can be tightly stretched in the pasting process, the protective film is not produced, and the film pasting quality is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an embodiment of a film laminating apparatus (before lamination) according to the present invention;

FIG. 2 is a schematic view of the film laminating apparatus (during film lamination) of FIG. 1;

FIG. 3 is a schematic diagram of an automated film production line provided by the invention;

FIG. 4 is a schematic view of the press film structure of FIG. 3 mated with a film laminating apparatus;

fig. 5 is a schematic flow chart of the protective film in fig. 3 from the film stock to the film pasting device.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Film sticking device	300	Material bearing part
11a	A first pick-up part	401	Film pressing plate
				11b	A second pick-up part	402	Lifting driving part
12	Mounting part	501	Membrane material warehouse
				13	Elastic piece	502	Film taking structure
14	Force sensor	a	Protective film
				15	Mounting base	b	Glass screen
200	Conveying belt

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the case where a directional instruction is involved in the embodiment of the present invention, the directional instruction is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional instruction is changed accordingly.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

In the production of products, in particular electronic products, it is nowadays often necessary to apply a film treatment to a part of the surface. For example, a screen of an electronic product, in order to ensure optical performance thereof, no dust, no bubbles, and no wrinkles are required in the film pasting process. In the existing film pasting mode, only the film is roughly placed above a screen, then the pasting surface is in direct contact, possible wrinkles, deformation and errors in manufacturing of the film are not considered, and when the corresponding screen is a curved surface, the film pasting mode can only be used for pasting a film on one curved surface; or when the film is adhered, each point on the film is contacted with the screen at the same time, a small amount of air is trapped in the film at the center of the screen to form bubbles, so that the qualified rate of the film is reduced.

In view of the above, the invention provides a film sticking device, an automatic film sticking production line and a film sticking method, wherein the film sticking mode is changed from the mode that each point on the film is simultaneously contacted with the surface of a product to the mode that each point is sequentially contacted with the surface of the product along with time, and the film starts to be stuck from one end to the other end of the film, so that the whole surface is prevented from being stuck with internal air to form bubbles when being simultaneously contacted, and meanwhile, the protective film can be tightened in the sticking process without generating wrinkles. Fig. 1 to fig. 2 are schematic views of an embodiment of a film laminating apparatus according to the present invention, and fig. 3 to fig. 5 are schematic views of an embodiment of an automated film laminating line according to the present invention.

Referring to fig. 1 to 2, the film sticking device 100 includes a first pick-up portion 11a and a second pick-up portion 11b, and a driving device, where the first pick-up portion 11a and the second pick-up portion 11b are configured to pick up opposite ends of the protective film a along a first direction, the first pick-up portion 11a has a movable stroke at least in a second direction to drive one end of the protective film a to adhere to one side of the product surface, and the second pick-up portion 11b has a movable stroke having components in both the first direction and the second direction to drive the other end of the protective film a to gradually approach the product surface in the first direction and the second direction, so that the protective film is gradually adhered to the product surface from one end to the other end, and the driving device drives the first pick-up portion 11a and the second pick-up portion 11b to move.

In the technical scheme of the invention, the first pick-up part 11a and the second pick-up part 11b pick up two opposite ends of the protection film a respectively, the first pick-up part 11a moves along the movable travel thereof, so that the end part of the protection film a correspondingly picked up can be firstly contacted with the surface of a product, the film pasting travel of the second pick-up part 11b has movable components in the first direction and the second direction, the end part of the protection film a correspondingly picked up can be gradually close to the surface of the product along the first direction and the second direction along the movable travel thereof, and finally is attached to the other end of the surface of the product, and the movable travel of the first pick-up part 11a and the second pick-up part 11b enables the whole film pasting process to be gradually attached from one end of the protection film a to the other end after the other end of the protection film a is attached instead of being attached at the same time, so that air bubbles are formed between the protection film a and the surface of the product are avoided, the protection film a can be tightly attached in the attaching process, the film quality of the film is not generated, and folds are not generated.

In the present embodiment, the first direction and the second direction are two directions perpendicular to each other in a plane, the first direction is a front-back direction or a left-right direction in the illustrated direction, the second direction is an up-down direction, the first pick-up portion 11a and the second pick-up portion 11b are spaced apart along the first direction in a natural state, the first pick-up portion 11a and the second pick-up portion 11b are spaced apart along the first direction and along the second direction in a film pasting process, and the first pick-up portion 11a and the second pick-up portion 11b are spaced apart along the first direction after film pasting is completed.

The invention is not limited to the part to be adhered with the film on the surface of the product and the material thereof, and the material can be transparent organic glass, toughened glass and the like in engineering materials, or can be metal or nonmetal, and the part can be a screen, a contact surface worn by a user and the like, and the glass screen in electronic products is taken as an example.

The present invention is not limited to the specific form of the first pick-up part 11a and the second pick-up part 11b, and in one embodiment, the first pick-up part 11a and the second pick-up part 11b may be realized by a vacuum suction structure, in which case, the first pick-up part 11a and the second pick-up part 11b are suction cups, and the first pick-up part 11a and the second pick-up part 11b suction opposite ends of the side surface of the protective film a facing away from the glass screen b, so that the pick-up is realized, and in other embodiments, the pick-up may be realized by a clamping jaw structure, in which case, the first pick-up part 11a and the second pick-up part 11b are clamping jaws, and the clamping jaws may directly grasp the ends of the outer periphery of the protective film a, so that the pick-up is realized. It should be noted that, the structures of the first pick-up portion 11a and the second pick-up portion 11b may be the same or different, and in this embodiment, the first pick-up portion 11a and the second pick-up portion 11b are both provided as clamping jaws, so that the gripping manner of the clamping jaws is more flexible, the contact point between the clamping jaws and the protective film a is smaller, and wrinkles are not easily caused on the pick-up portion of the protective film a.

Specifically, the film sticking device 100 includes a mounting portion 12 movably disposed along a first direction and along a second direction, the second pick-up portion 11b is mounted on the mounting portion 12, and the driving device drives the mounting portion 12 to move, so as to implement mounting and synchronous movement of the second pick-up portion 11 b.

The protective film a is generally a flexible film, which has a certain ductility, and is always tensioned by the first pick-up 11a and the second pick-up 11b during the movement of the first pick-up 11a and the second pick-up 11b, and in consideration of that the mechanical hard connection may cause tearing of the protective film a due to too large pulling force when suddenly moving, in one embodiment of the present invention, the second pick-up 11b is mounted to the mounting portion 12 by means of the elastic member 13. The driving device drives the first picking up part 11a and the second picking up part 11b to have different movable strokes, the elastic piece 13 is arranged to connect the first picking up part 11a and the second picking up part 11b, before film pasting, two ends of the protective film a are fixed by the first picking up part 11a and the second picking up part 11b, wherein the second picking up part 11b is under the elastic action of the elastic piece 13, so that the corresponding end of the protective film a is always under elastic tension, and the protective film a is naturally tensioned to eliminate wrinkles.

Based on the above embodiment, the film sticking device 100 further includes a force sensor 14 mounted to the mounting portion 12, the force sensor 14 is connected to an end portion of the elastic member 13 away from the second pick-up portion 11b, and the film sticking device 100 further includes a control device electrically connected to the force sensor 14 and the driving device. The force sensor 14 can feed back the measured tension of the elastic member 13 to the control device, so that the control device controls the feeding amount of the driving device according to the fed back data, and along with the film pasting action, the driving device drives the mounting portion 12 to move along the first direction and close to the glass screen b and move along the second direction and close to the glass screen b respectively, so that the elongation of the elastic member 13 is gradually reduced, and the tension is gradually reduced, so that the film pasting action is completed on the moving stroke of the second pick-up portion 11 b.

Furthermore, the invention is not limited to the specific form of the elastic member 13, the elastic member 13 may be a spring or a rubber member, and only the elastic member 13 is required to be ensured to have elasticity and be capable of conducting tensile force.

It should be noted that, the present invention is not limited to a specific form of the driving device, and displacement in two directions can be achieved simultaneously for one linkage driving mechanism, in other embodiments, the film laminating device 100 further includes a mounting base 15, the mounting base 15 is movably disposed along a first direction, the mounting portion 12 is movably mounted on the mounting base 15 along a second direction, and the driving device includes two driving portions to respectively drive the mounting base 15 and the mounting portion 12 to move. In this structure, the two driving portions cooperate to realize driving in two directions, and the two driving portions may have the same or different structures, and according to reasonable designs of respective movable strokes, only the displacement in the first direction and the displacement in the second direction may be satisfied, and the driving portions may be in the form of motor, cylinder, sprocket cooperation, or the like, and may specifically be a combination of two linear driving mechanisms, which is not specifically described herein.

The invention also provides an automatic film laminating production line, which comprises the film laminating device 100, and the automatic film laminating production line comprises all the technical characteristics of the film laminating device 100, so that the automatic film laminating production line also has the technical effects brought by all the technical characteristics, and the technical effects are not repeated one by one. Specifically, the automatic film laminating line further includes a conveyor belt 200, the conveyor belt 200 is used for conveying a plurality of glass panels b along a first direction, and a film laminating station is arranged on a travelling track of the conveyor belt 200; the film sticking device 100 is used for sticking a film to the glass screen b at the film sticking station. In the film pasting process, the conveying belt 200 is in a stepping type, when the film pasting device 100 works, the conveying belt 200 stops, so that the glass screen b positioned on the film pasting station performs film pasting action, and after the current glass screen b is pasted, the conveying belt 200 runs, so that the next glass screen b is driven to the film pasting station.

In order to facilitate positioning of the glass screen b during the film pasting process, referring to fig. 3, the automated film pasting line further includes a plurality of material bearing portions 300 disposed on the conveyor belt 200 and spaced along the first direction, wherein the plurality of material bearing portions 300 are used for adsorbing and fixing the plurality of glass screens b, and the plurality of material bearing portions 300 can sequentially move to the film pasting station. The plurality of material bearing parts 300 are fixed on the conveying belt 200, so that each material bearing part 300 sequentially enters the film pasting station under the driving of the conveying belt 200, the stability of the glass screen b in the film pasting process is ensured by the sucking disc adsorption mode, the movement of the glass screen b is prevented, and the stability of the film pasting is ensured.

The invention is not limited to the specific form of the material bearing portion 300, in this embodiment, the glass screen b is fixed by suction by a suction cup, and in other embodiments, the material bearing portion 300 may be provided as a fixing socket, which only needs to ensure that the glass screen b is fixed and detachable.

Further, referring to fig. 4, the automatic film laminating line further includes a film pressing structure disposed at the film laminating station, the film pressing structure includes a film pressing plate 401 and a lifting driving portion 402, the film pressing plate 401 has a movable stroke along a second direction, the film pressing plate 401 is close to or far away from the conveyor belt 200, a shape of the film pressing plate 401 facing to an end face of the conveyor belt 200 is adapted to the glass screen b, and the lifting driving portion 402 is in driving connection with the film pressing plate 401 to drive the film pressing plate 401 to move. The film pressing structure is performed after the film pasting of the film pasting device 100 is completed, specifically, the lifting driving part 402 drives the film pressing plate 401 to lift along the second direction, so that the film pressing plate 401 faces the end face of the conveying belt 200 to be attached to the protective film a, and the protective film a is compacted on the glass screen b.

In this embodiment, the lifting driving portion 402 is an air cylinder, a cylinder barrel of the air cylinder is fixed, an end portion of an air cylinder rod is fixedly connected with the film pressing plate 401, and the film pressing plate 401 is driven to lift through expansion and contraction of the air cylinder rod, and in other embodiments, the lifting driving portion 402 may be a linear motor, a cam mechanism, or the like, and only lifting movement needs to be completed, which is not limited herein.

In this embodiment, the glass screen b may be any curved glass, such as convex glass or concave glass, or may be flat glass, and the shape of the end surface of the film pressing plate 401 facing the conveyor belt 200 may be adapted to the glass screen b.

Moreover, when the film pressing plate 401 works, the first pick-up portion 11a and the second pick-up portion 11b still remain in a state of picking up the end portion of the protective film a, after the film pressing operation is completed, the waste portion of the protective film a can be cut off along the contour of the glass screen b by means of laser or the like, and the cut film waste is transferred to a dustbin, so that the film pasting process is completed.

In order to realize full-automatic film pasting, please refer to fig. 5, the automatic film pasting production line further includes a film stock base 501 and a film taking structure 502, the film stock base 501 and the film pasting station are spaced along a first direction or along a second direction, a plurality of protective films a to be pasted are stored in the film stock base 501, the film taking structure 502 includes a film taking part, the film taking part has a movable travel close to or far away from the film stock base 501, and is used for sequentially taking out the protective films a in the film stock base 501, wherein a first pick-up part 11a and a second pick-up part 11b in the film pasting device 100 are used for picking up the protective films a on the film taking part and driving the protective films a to move to the film pasting station. The film material warehouse 501 stacks a plurality of protective films a, the film taking part is located right above the film material warehouse 501, and the film taking part corresponds to the center of each protective film a, under the action of a driving force, the film taking part firstly stretches into the film material warehouse 501 to contact with one protective film a and pick up the protective film a, then the protective film a can be driven to leave the film material warehouse 501 under the reverse driving force, at this time, the first pick-up part 11a and the second pick-up part 11b in the film pasting device 100 move to the positions, pick up the parts of the edges of the protective films a, which are not contacted with the film taking part, then the first pick-up part 11a and the second pick-up part 11b drive the protective films a to a film pasting station, and film pasting action is performed, so that the film pasting action from the discharging of the protective films a to the completion of the film pasting action is automatically completed through equipment, the labor cost is saved, and the production efficiency is improved.

It should be noted that, the outer dimension of the film taking part should be smaller than the dimension of the protective film a, so as to provide a pickup space for the pickup part.

In this embodiment, the film taking structure 502 is a combined structure of an air cylinder and a suction cup, the air cylinder is used as a drive, the suction cup is driven to lift through the expansion and contraction of an air cylinder rod, the suction cup is used as a film taking part, and negative pressure is generated to absorb a single protective film a. Simple structure is convenient for set up, and the mode stability that the sucking disc picked up simultaneously is good, is difficult for causing the fold to the surface of protection film a, guarantees protection film a follow pick up the leveling of process in the membrane stock storehouse 501. In other embodiments, the film taking section may be controlled by a telescopic mechanism, and the control is not limited thereto.

Specifically, in the embodiment of the present invention, the film taking part is a material taking suction cup, the first pick-up part 11a and the second pick-up part 11b are both pick-up clamping jaws, the material bearing part 300 is a material bearing suction cup, and the process of film pasting in the automatic film pasting production line is as follows:

the conveyor belt 200 drives one of the glass panels b to move to the film pasting station, at this time, the glass panel b is kept fixed under the adsorption action of the material bearing sucker, meanwhile, the film material warehouse 501 is spaced from the film pasting station along the first direction, the material taking sucker descends to contact with the protective film a under the driving of an air cylinder, the negative pressure is generated to adsorb a single protective film a, and the air cylinder rod of the air cylinder moves reversely to drive the protective film a to leave the film material warehouse 501. The two pick-up clamping jaws firstly move to the upper part of the film stock warehouse 501 along the first direction and along the second direction under the drive of the driving device, the part, which is not contacted with the pick-up suction cup, of the edge of the protective film a is clamped, the pick-up suction cup stops adsorbing the protective film a, then the protective film a is jointly clamped by the two pick-up clamping jaws to move to the upper part of the glass screen b along the first direction, at the moment, one pick-up clamping jaw is connected with the spring, the spring provides tension force and is transmitted to the surface of the protective film a, the fold of the protective film a is eliminated, the spring is connected with the force sensor 14, the measurable elasticity, namely the tension force, the force sensor 14 is electrically connected with the driving device, so that the tension force of the spring is transmitted to the driving device, the other pick-up clamping jaw drives the end part of the protective film a to contact with the glass screen b, the pick-up clamping jaw of the connecting spring drives the end part of the other protective film a to gradually move downwards along with time, so that the protective film a gradually contacts with one end, air is prevented from being trapped inside to form bubbles, the driving part of the connecting the spring gradually descends, approaches the glass screen b, the spring elongation gradually reduces, the tension force gradually, and the whole protective film a gradually reduces, and the whole protective film a sheet is completely contacts with the other protective film a corresponding to the driving film 401. Then, the laser is used for cutting off the redundant part of the protective film a along the outline of the glass screen b, the two pick-up clamping jaws drive the film waste to be transferred to the dustbin, the film pasting process is completed, the conveyor belt 200 resumes operation, the finished product of the film is transported out of the film pasting station, and the next glass screen b to be film-pasted is transported to the film pasting station. So set up, each point on the protection film a is contacted with glass screen b in proper order along with the time lapse, and protection film a starts from a side when laminating, avoids the bubble to produce, improves the pad pasting quality, makes protection film a tensioning through the spring when the pad pasting, adjusts drive division through force transducer 14 feedback, can not break when guaranteeing that the membrane eliminates the fold.

Based on the above film sticking device 100, the present invention further provides a film sticking method, which specifically includes the following steps:

s10: controlling the first pick-up portion 11a and the second pick-up portion 11b to pick up opposite ends of the protective film a in the first direction, respectively;

s20: the first pick-up part 11a and the second pick-up part 11b are controlled to move along respective movable strokes so as to drive the two ends of the protective film a to be sequentially attached to the two ends of the glass screen b.

Because the first pick-up part 11a and the second pick-up part 11b have different movable strokes, the two ends of the protective film a are driven to contact with the glass screen b sequentially by controlling the first pick-up part 11a and the second pick-up part 11b, so that each point on the protective film a contacts with the glass sequentially along with time, and the protective film a starts from one side during lamination.

Specifically, the setting control device is electrically connected with the driving device, and the control device may include: a processor, such as a CPU, a communications bus, a user interface, a network interface, and memory. Wherein the communication bus is used to enable connection communication between these components. The user interface may comprise a Display, an input unit such as a Keyboard (Keyboard), and the optional user interface may further comprise a standard wired interface, a wireless interface. The network interface may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory may alternatively be a storage device separate from the aforementioned processor. The film-coating program is stored in the processor so that the film-coating method is performed during the production process.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.

Claims

1. A film sticking device for picking up a protective film and sticking it to a product surface, comprising:

the driving device drives the first pick-up part and the second pick-up part to move;

the film pasting device comprises a mounting part which is movably arranged along a first direction and a second direction, and the second pick-up part is mounted on the mounting part;

the driving device drives the mounting part to move;

the second pick-up part is mounted to the mounting part through an elastic member;

the film pasting device further comprises a force sensor which is mounted on the mounting part and is connected with the end part of the elastic piece, which is far away from the second pick-up part;

the film pasting device further comprises a control device, and the control device is electrically connected with the force sensor and the driving device;

the driving device drives the mounting part to move along a first direction close to the surface of the product and along a second direction close to the surface of the product, so that the elongation of the elastic piece is reduced, and the film pasting action is completed on the movable stroke of the second pick-up part.

2. The film laminating apparatus of claim 1, further comprising a mounting base movably disposed along a first direction, said mounting portion movably mounted to said mounting base along a second direction;

3. The film laminating apparatus according to claim 1, wherein said elastic member is a spring or a rubber member.

4. The film laminating apparatus according to claim 1, wherein said first pick-up portion is a holding jaw or a suction cup; and/or the number of the groups of groups,

the second pick-up part is a clamping jaw or a sucking disc.

5. An automated film production line, comprising:

a film laminating apparatus according to any one of claims 1 to 4, for laminating a surface of a product at the film laminating station.

6. The automated film laminating line of claim 5, further comprising a plurality of material receiving portions disposed on the conveyor belt and spaced along the first direction, wherein the plurality of material receiving portions are configured to secure a plurality of products, and wherein the plurality of material receiving portions are sequentially movable to the film laminating station.

7. The automated film production line of claim 6, wherein each of the material-receiving portions is a suction cup.

8. The automated film laminating line of claim 5, further comprising a film pressing structure disposed at the film laminating station, the film pressing structure comprising:

9. The automated film laminating line of claim 5, further comprising:

10. A film-sticking method based on the film-sticking apparatus according to any one of claims 1 to 4, characterized in that the film-sticking method comprises the steps of: