CN218399437U

CN218399437U - Non-contact film pasting device

Info

Publication number: CN218399437U
Application number: CN202222247886.2U
Authority: CN
Inventors: 刘瑶林; 方明登; 何少军
Original assignee: Shenzhen Sking Intelligent Equipment Co Ltd
Current assignee: Shenzhen Sking Intelligent Equipment Co Ltd
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2023-01-31
Anticipated expiration: 2032-08-25

Abstract

The application provides a non-contact pad pasting device, be used for pasting the diaphragm on the curved surface product, including first cavity, the second cavity, support element and heating unit, first cavity corresponds the setting with the second cavity, the second cavity can remove first cavity relatively, can close formation a confined space with first cavity, confined space cuts apart into first confined chamber and second confined chamber through the diaphragm, on the inner wall of support element installation second cavity, and be located the second confined chamber, be used for bearing the curved surface product, and can drive the relative first cavity of curved surface product and remove, in the first cavity of heating unit installation, and be located first confined chamber, be used for heating the diaphragm. By adopting the non-contact film sticking device, after the heating unit heats the film, the flexibility of the film is improved, so that the film can be stuck on various curved surface products, the film is driven by air pressure difference, all position points of the film are stressed in a balanced manner, and the condition that bubbles are easy to appear in the sticking process is improved.

Description

Non-contact film pasting device

Technical Field

The application relates to the technical field of curved surface product films, in particular to a non-contact film sticking device.

Background

In the process of attaching the membrane to the curved product, two ways are mainly adopted, one is that one end of the membrane is pressed on the product through a roller, and the roller is arranged on the surface of the product back and forth along one direction of the product, so that the membrane is attached to the product. The other mode is that the opposite two ends of the membrane are clamped by the clamp and are placed on the profiling jig, so that the membrane is shaped according to the shape of the jig, and the shaped membrane is attached to a product. The two methods are used for overcoming the phenomenon that the film shrinks or stretches in the laminating process, so that the jig and the product need to be heated. However, the above two methods can only be used to bond a film to a one-dimensional or two-dimensional product, and it is difficult to bond the film to a product having a complicated overall shape by the above two methods. In addition, the membrane is removed and clamped through a roller or a clamp, the above mode belongs to contact heating and stretching deformation, and secondary defects are easily caused to the membrane in the stretching process, for example, the membrane is deformed or damaged.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a non-contact film pasting device, which can paste a film onto a multi-dimensional curved product and improve the damage of the film.

The embodiment of the application provides a non-contact pad pasting device for paste the diaphragm on curved surface product, non-contact pad pasting device includes first cavity, second cavity, supporting unit and heating unit, first cavity with the second cavity corresponds the setting, the second cavity can be relative first cavity removes, first cavity with the second cavity can be closed enough and form a confined space, confined space passes through first confined chamber and second confined chamber are cut apart into to the diaphragm, the supporting unit is installed on the inner wall of second cavity, and lie in the second confined chamber, the supporting unit is used for bearing curved surface product, and can drive curved surface product is relative the second cavity removes, the heating unit install in the first cavity, and lie in the first confined chamber, the heating unit is used for heating the diaphragm.

By adopting the non-contact film sticking device, the first cavity and the second cavity can form a sealed space so as to stick the film in the space. In addition, the supporting unit is combined to arrange the curved surface product on the supporting unit, so that the membrane can be attached to the curved surface product conveniently. After the heating unit heats the membrane, the ductility of the membrane is improved before attachment, so that the membrane has good flexibility and can be suitable for different curved surface products. Moreover, in the attaching process, the diaphragm can be fixed through the first cavity and the second cavity without clamping or extruding the diaphragm through tools such as a clamp or a roller and the like, so that the diaphragm is possibly damaged.

In at least one embodiment, the supporting unit includes a supporting fixture and a driving member, the supporting unit bears the curved surface product through the supporting fixture, and the driving member is connected to the supporting fixture and used for driving the supporting fixture to move.

In the above embodiment, the curved surface product is fixed by the supporting jig, so that the curved surface product is prevented from moving in the film pasting process. The supporting jig is driven to move by the driving piece, so that the supporting unit can be adapted to products with different sizes or types, for example, curved surface products with different heights can be adapted, and the universality of the non-contact film sticking device is improved.

In at least one embodiment, the supporting unit further includes a supporting member, the supporting member is disposed on the periphery of the supporting jig, and the supporting member and the supporting jig are used for jointly bearing the curved surface product.

In the above embodiment, the supporting member is arranged to assist the supporting jig to bear the curved surface product, so as to improve the stability of fixing the curved surface product.

In at least one embodiment, the heating unit includes a heating member and a heat-conducting member, and the heat-conducting member is disposed at a side of the heating member close to the second cavity and is used for diffusing heat emitted from the heating member to the product.

In the above-mentioned embodiment, light through heating member institute launches heats the diaphragm for the diaphragm has the ductility, and the heat-conducting member can shoot the light that the heating member launches to the curved surface product on, can be shone by light with the diaphragm that the curved surface product corresponds in order to ensure, and then has the ductility, laminating that can be better to the curved surface product on.

In at least one embodiment, along the moving direction of the second cavity, the projected areas of the heating element and the heat-conducting element on the second cavity are larger than the projected area of the curved product on the second cavity.

In the above-mentioned embodiment, the area through with heating member and heat-conducting member sets up to be greater than the area of curved surface product to at the in-process of pad pasting, the heating unit can heat the diaphragm of bigger area, and this part diaphragm can be more abundant attached on the curved surface product, promotes the integrality to curved surface product pad pasting.

In at least one embodiment, the non-contact film pasting device further comprises a pressure storage unit, and the pressure storage unit is communicated with the first sealing cavity and used for providing a positive pressure air source into the first sealing cavity.

In the above embodiment, through setting up the pressure storage unit for there is the same atmospheric pressure in the first sealed intracavity, and this atmospheric pressure is used in on the diaphragm, makes the atress equilibrium of each position point of diaphragm stable, and the diaphragm can be more comprehensive attached on the product.

In at least one embodiment, the pressure storage unit comprises an air source, a pressurizing piece and a pressure storage tank, wherein the pressurizing piece is respectively connected with the air source and the pressure storage tank, the pressurizing piece is used for pressurizing the air pressure delivered by the air source, and the pressurized air source is delivered into the pressure storage tank from the pressurizing piece for storage.

In the above embodiment, carry out the pressure boost to the air supply through the pressure boost piece, and with the atmospheric pressure storage after the pressure boost in storing up the pressure jar to release atmospheric pressure in the pressure jar can be at random to the first cavity, make the atmospheric pressure in the first cavity realize the conversion fast, with can with the second cavity in form the atmospheric pressure difference, in order to provide pressure to the diaphragm, order to order about it attached on the product.

In at least one embodiment, the non-contact film pasting device further comprises a vacuum pumping unit, wherein the vacuum pumping unit is communicated with the first sealed cavity and the second sealed cavity and used for pumping vacuum to the first sealed cavity and the second sealed cavity.

In the above embodiment, through setting up the evacuation unit, before laminating the diaphragm to the curved surface product, carry out evacuation processing to first sealed chamber and second sealed chamber earlier, improve the diaphragm at the in-process of laminating, for example, there is the air in first sealed chamber and the second sealed chamber, can have the condition of bubble after the diaphragm laminating.

In at least one embodiment, the evacuation unit includes an evacuation member and a communication member connected to the evacuation member, the evacuation member communicates with the second sealed chamber, and the communication member communicates with the first sealed chamber.

In the above embodiment, the vacuumizing unit includes a vacuumizing part and a conducting part, and the conducting part is arranged, so that the first sealing cavity and the second sealing cavity can be vacuumized selectively, or the second cavity can be vacuumized.

In at least one embodiment, the non-contact film pasting device further comprises a fixing component, and the fixing component is arranged on the first cavity and/or the second cavity and is used for fixing the film.

In the embodiment, the diaphragm is fixed by the fixing part, so that the stability of the diaphragm before being attached can be improved, and the situation that the diaphragm is deviated to affect the film pasting is avoided.

The application provides a non-contact pad pasting device carries out the pad pasting with diaphragm and curved surface product setting in confined space, fixes the diaphragm through first cavity and second cavity, can improve the condition that causes the damage to the diaphragm. In addition, the heating unit is arranged to heat the membrane, and the heated membrane has good ductility and can be suitable for different curved surface products.

Drawings

Fig. 1 is a schematic view of a non-contact film laminating apparatus according to an embodiment of the present application.

FIG. 2 is a schematic view of a non-contact film pasting device according to another embodiment of the present application.

Fig. 3 is a schematic view of a heating unit in the non-contact film laminating apparatus shown in fig. 2.

Fig. 4 is a schematic view of the non-contact type film laminating apparatus shown in fig. 1, wherein a pressure storage unit is provided.

FIG. 5 is a schematic view of the non-contact type film laminating apparatus provided with a vacuum unit based on FIG. 4.

Fig. 6 is a perspective view of the noncontact film bonding apparatus shown in fig. 1, in which a fixing member is provided.

Fig. 7 is a schematic cross-sectional view of the noncontact film applicator shown in fig. 6, in which a fixing member is provided.

Fig. 8 is a schematic view of the non-contact type film pasting device provided with a control structure on the basis of fig. 6.

Fig. 9 is a perspective view of the noncontact film bonding apparatus provided with a lifting structure based on fig. 8.

Description of the main elements

Non-contact film pasting device 100

First chamber 10

First seal chamber 11

Second chamber 20

Second seal chamber 21

Supporting unit 30

Supporting jig 31

Driving member 32

Support member 33

Heating unit 40

Heating member 41

Heat conducting member 42

Power supply 43

Adjusting piece 44

Temperature controller 45

First temperature sensor 46

Second temperature sensor 47

Pressure storage unit 50

Gas source 51

Pressure increasing piece 52

Pressure storage tank 53

Switch member 54

Adjuster 55

Evacuation unit 60

Vacuum-pumping part 61

Lead-through member 62

Fixing member 70

Adsorption member 71

Pressing piece 72

Control structure 80

Control cabinet 81

First control member 82

Second control member 83

Third control 84

Lifting structure 90

Mounting bracket 91

Connecting plate 911

Guide post 912

First mounting plate 913

Second mounting plate 914

Power source 92

Diaphragm 200

Curved surface product 300

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

It will be understood that 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. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "back," and the like as used herein are for purposes of description 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 application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

By adopting the non-contact film pasting device, the first cavity and the second cavity can form a sealed space so as to be capable of pasting the film in the space. In addition, the curved surface product is arranged on the supporting unit by combining the supporting unit, so that the film can be conveniently attached to the curved surface product. After the heating unit heats the membrane, the ductility of the membrane is improved before attachment, so that the membrane has good flexibility and can be suitable for different curved surface products. Moreover, in the attaching process, the diaphragm can be fixed through the first cavity and the second cavity without clamping or extruding the diaphragm through tools such as a clamp or a roller and the like, so that the diaphragm is possibly damaged.

Some embodiments will be described below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Referring to fig. 1, an embodiment of the present application provides a non-contact film laminating apparatus 100 for laminating a film 200 on a curved product 300. The non-contact film laminating apparatus 100 includes a first chamber 10, a second chamber 20, a support unit 30, and a heating unit 40. The first cavity 10 and the second cavity 20 are correspondingly arranged, and the second cavity 20 can move relative to the first cavity 10 and can form a sealed space with the first cavity 10 in a closed mode. The sealed space is divided into a first sealed chamber 11 and a second sealed chamber 21 by a diaphragm 200. The supporting unit 30 is installed on the inner wall of the second chamber 20 and is located inside the second hermetic chamber 21. The supporting unit 30 is used for bearing the curved product 300 and can drive the curved product 300 to move relative to the second cavity 20. The heating unit 40 is installed on the first chamber 10 and is located in the first sealing chamber 11 to heat the membrane 200.

Referring to fig. 1, the first cavity 10 is hollow and has an opening at a side facing the second cavity 20. The second cavity 20 is hollow, and has an opening on a side facing the first cavity 10. The first cavity 10 and the second cavity 20 have matching profiles, so that the first cavity 10 and the second cavity 20 can form a whole structure with a sealed space after being closed. The diaphragm 200 is disposed at a connection position of the first and

second cavities

10 and 20.

In one embodiment, the first and

second cavities

10 and 20 have a hollow rectangular structure. It is understood that the shape of the first and

second cavities

10 and 20 may be adjusted in conjunction with different products. For example, it may be provided in a cylindrical shape.

Referring to fig. 2, in an embodiment, the supporting unit 30 includes a supporting fixture 31 and a driving member 32. The supporting unit 30 carries the curved product 300 through the supporting fixture 31, and the driving member 32 is connected to the supporting fixture 31 for driving the supporting fixture 31 to move. The driving member 32 is installed on the bottom wall of the second cavity 20, and the supporting fixture 31 is installed on the driving member 32.

The supporting fixture 31 is used to place the curved product 300 near the end of the first cavity 10, and the supporting fixture 31 is a profiling structure to more stably support the curved product 300.

In one embodiment, the drive member 32 is a drive cylinder. The driving cylinder is used for driving the supporting jig 31 to move towards the direction close to the first cavity 10. By providing the driving member 32 on the supporting jig 31, the supporting unit 30 has a height-adjustable function. The height-adjustable support unit 30 can be adapted to the arrangement position of the membrane 200. For example, since the film 200 has a certain ductility after being heated, in order to enable the film 200 to be attached to a product, the driving member 32 drives the supporting fixture 31 to move toward the direction close to the film 200, so that contact points between the film 200 and the curved product 300 can be sufficiently contacted, and the curved product 300 can be attached to the film 200 conveniently.

It will be appreciated that in other embodiments, the drive member 32 may also be a motor or other structure having equivalent efficacy or function.

Referring to fig. 2, in an embodiment, the supporting unit 30 may further include a supporting member 33. The supporting member 33 is disposed on the periphery of the supporting fixture 31, and together with the supporting fixture 31, carries the curved product 300. The supporting member 33 is used to assist the supporting fixture 31 to support and fix the product. Wherein, the supporting member 33 is a profiling structure to stably support the product. By providing the supporting member 33, the stability of the supporting unit 30 for supporting the product can be further improved.

In an embodiment, the supporting fixture 31 may also be adjusted in height by fasteners. For example, the supporting jig 31 is fixed in the second cavity 20 by a jackscrew. In order to adjust the position of the supporting jig 31, the supporting jig 31 can be moved in the up-down direction by rotating the adjusting jack screw. The first chamber 10 is disposed above, and the second chamber 20 is disposed below the first chamber 10.

Referring to fig. 1, the heating unit 40 is installed in the first chamber 10, and further, the heating unit 40 is installed on a top wall of the first chamber 10, and the heating unit 40 is used for emitting light, and heat generated by the light heats the film 200.

Referring to fig. 1, in one embodiment, the heating unit 40 includes a heating member 41 and a heat-conducting member 42. The heat-conducting member 42 is disposed on a side of the heating member 41 close to the second cavity 20, and is used for diffusing heat emitted from the heating member 41 to the product. Wherein, the heating member 41 is disposed on the top wall of the first chamber 10, and the heat-conducting member 42 may be disposed on a side of the heating member 41 close to the second chamber 20 through a connection column.

In one embodiment, the projection area of the heating member 41 and the heat conducting member 42 on the second cavity 20 along the moving direction of the second cavity 20 is larger than the projection area of the curved product 300 on the second cavity 20. By setting the areas of the heating member 41 and the heat-conducting member 42 to be larger than the area of the curved surface product 300, the heating unit 40 can heat a larger area of the membrane 200 in the film pasting process, and the part of the membrane 200 can be attached to the curved surface product 300 more sufficiently, so that the integrity of the film pasting of the curved surface product 300 is improved.

The heating member 41 is an infrared light source. It is to be understood that in other embodiments, the heating member 41 may be replaced with a structure having an equivalent function or effect. Such as induction heating, etc. The heat conducting member 42 is a light equalizing plate, and after the heating member 41 emits light, the emitted light is uniformly scattered onto the curved surface product 300 through the light equalizing plate, and the membrane 200 corresponding to the curved surface product 300 is also uniformly irradiated. The film 200 corresponding to the curved product 300 is uniformly heated and has ductility, so that the film can be better attached to the curved product 300. The light homogenizing plate is made of a material which can penetrate light and is high-temperature resistant, such as polypropylene.

Referring to fig. 3, in an embodiment, the heating unit 40 further includes a power supply 43 and a regulating member 44. The power supply 43 is electrically connected with the adjusting member 44, and the adjusting member 44 is electrically connected with the heating member 41. The power supply 43 is used for providing electric power for the heating member 41, and the adjusting member 44 is used for adjusting the magnitude of current or voltage in the power supply 43, so that the heating degree of the heating member 41 can be controlled, the heating unit 40 can heat different membranes 200 according to the needs, and the universality of the heating unit 40 is improved.

The power supply 43 is a three-phase power supply 43, and the regulator 44 is a power regulator. It is understood that in other embodiments, the power supply 43 and the adjusting member 44 may be replaced by other structures having equivalent functions or functions. For example, the adjusting member 44 may be replaced with a transformer.

Referring to fig. 3, in an embodiment, the heating unit 40 further includes a temperature controller 45. The temperature controller 45 is connected to the heating member 41 and the regulating member 44. The temperature controller 45 is used for monitoring the temperature in the first cavity 10 in real time, and the temperature in the first cavity 10 needs to be kept at a preset value when the membrane 200 is attached to the curved product 300. For example, when the temperature in the first chamber 10 is set at 290 ℃, the film 200 may have a certain ductility, so that the film 200 can be better attached to the curved product 300. The temperature inside the first chamber 10 is monitored by the temperature controller 45.

It is understood that the temperature in the first chamber 10 is set at 290 deg.c, by way of example only. The temperature in the first chamber 10 can be set according to specific needs.

Referring to fig. 3, in an embodiment, the heating unit 40 further includes a first temperature sensor 46 and a second temperature sensor 47, and the first temperature sensor 46 and the second temperature sensor 47 are respectively electrically connected to the temperature controller 45. The first temperature sensor 46 is disposed on a side of the heat conductive member 42 facing the heating member 41 to sense the temperature of the heating member 41. The second temperature sensor 47 is disposed on a side of the curved product 300 opposite to the heating member 41 for sensing the temperature of the curved product 300. Since the first temperature sensor 46 is close to the heating member 41, it senses a higher temperature than the second temperature sensor 47. The temperature controller 45 monitors the temperatures of the first temperature sensor 46 and the second temperature sensor 47 to ensure that the temperature in the first chamber 10 is controlled to a preset value after the heating unit 40 heats.

For example, after the heating unit 40 is activated, the heating member 41 starts to perform heating. When the first temperature sensor 46 or the second temperature sensor 47 detects that the temperature in the first chamber 10 reaches a preset value, the temperature controller 45 provides monitoring data to a control structure (not shown), and the control structure sends a signal to stop the operation of the heating unit 40. When the temperature in the first chamber 10 decreases, and the first temperature sensor 46 or the second temperature sensor 47 detects that the temperature in the first chamber 10 is lower than the preset value, the temperature controller 45 provides the monitoring data to the control structure, and the control structure sends a signal to start the heating unit 40, so that the temperature in the first chamber 10 is always kept at the preset value.

It is to be understood that the positions where the first temperature sensor 46 and the second temperature sensor 47 are disposed are not limited thereto. It can be adjusted according to the specific structural arrangement.

The heating unit 40 provides a higher temperature for the membrane 200, which improves the ductility of the membrane 200, so that the heated membrane 200 can adapt to various curved surfaces such as convex surface, concave surface, spherical surface or irregular spherical surface. After the heating unit 40 heats the inside of the first sealed cavity 11, there is an air pressure difference between the first sealed cavity 11 and the second sealed cavity 21, and the air pressure difference is converted into a pressure to drive the membrane 200 to adhere to the curved product.

Referring to fig. 4, in an embodiment, the non-contact film laminating apparatus 100 further includes a pressure storage unit 50. The pressure storage unit 50 is communicated with the first sealed cavity 11 and is used for providing a positive pressure gas source into the first sealed cavity 11. The pressure storage unit 50 is used for storing the pressurized gas and providing the pressurized gas pressure into the first cavity 10, so that a gas pressure difference can be formed between the inside of the first cavity 10 and the inside of the second cavity 20. The air pressure difference is used to apply an external force to the membrane 200, so that the membrane 200 is attached to the curved surface of the product. In addition, through the arrangement of the pressure storage unit 50, the same air pressure exists in the first sealed cavity 11, and the air pressure acts on the diaphragm 200, so that the stress of each position point of the diaphragm 200 is balanced and stable, and the diaphragm 200 is not easy to generate bubbles in the attaching process.

The pressure storage unit 50 includes a gas source 51, a pressurizing member 52, and a pressure storage tank 53. The pressurizing piece 52 is respectively connected with the air source 51 and the pressure storage tank 53, the pressurizing piece 52 is used for pressurizing the air pressure delivered by the air source 51, and the pressurized air source 51 is delivered to the pressure storage tank 53 from the pressurizing piece 52 for storage. The pressurizing member 52 is connected with the air source 51 and the pressure storage tank 53 through air pipes. The gas source 51 is used for outputting positive pressure gas, and the positive pressure gas flows to the pressure storage tank 53 for storage after being pressurized by the pressurizing member 52.

In one embodiment, the plenum 52 is a booster pump. It is understood that in other embodiments, the pressurizing member 52 may be replaced with other structures having equivalent functions or effects, and may be replaced with a pressurizing valve.

For example, booster pumps are commonly used to control the pressure within the chamber, where the booster pump is a step-wise raising the chamber pressure. In the process of gradually increasing the pressure inside the cavity, the reaction time is slow, and the preset pressure in the cavity can be reached in a longer time. Wherein this method requires 20s to 30 s.

The pressure storage unit 50 first pressurizes the positive pressure gas and stores the positive pressure gas in the pressure storage tank 53. When the positive pressure gas is required to be used, the first chamber 10 can realize the conversion of the gas pressure in a short time by releasing the positive pressure gas from the pressure storage tank 53. Namely, the pressurized positive pressure gas can be rapidly released into the first cavity 10, and the mode needs 0.5s. By storing the pressurized air pressure in the pressure storage tank 53, the bonding efficiency of the diaphragm 200 can be improved.

Referring to fig. 4, in an embodiment, the pressure storage unit 50 further includes a switch 54. The opening and closing member 54 is connected to the pressure tank 53. Wherein, can control the opening and closing of pressure storage tank 53 through setting up switch 54, can be as required at any time to the first seal chamber 11 in input air supply 51.

Preferably, the switch member 54 is a switch valve. The switch valve can be arranged between the pressure storage tank 53 and the first cavity 10, or on the pressure storage tank 53, and can control the opening and closing of the pressure storage tank 53.

Referring to fig. 4, in one embodiment, the pressure storage unit 50 further includes a regulator 55. The regulator 55 is connected to the pressure tank 53 for regulating the output speed of the air pressure after the pressure tank 53 is opened. The regulator 55 is used for regulating the output speed of the air pressure of the pressure storage tank 53, so as to control the air pressure change speed in the first cavity 10, thereby providing a reliable speed control mode for the film sticking process of the curved surface product 300.

Wherein the pressure level of the seal cavity can be controlled by adjusting the pressure level of the plenum 52. For example, when the opening and closing member 54 is closed, the pressure in the sealed space is P0. When the opening and closing member 54 is opened, the pressure in the sealed space is P2. The pressure of the pressurizing member 52 is P1. The volume of the pressure storage tank 53 is V1, and the volume of the sealed space and the piping is V2. The final pressure of the sealed space P2= (V1 × P1+ V2 × P0)/(V1 + V2). The pressure in the sealed space can be calculated by the calculation formula, so that the pressure in the sealed space can be indirectly controlled by the through hole pressurizing member 52.

Referring to fig. 5, in an embodiment, the non-contact film laminating apparatus 100 further includes a vacuum unit 60. The vacuum pumping unit 60 is communicated with the first seal chamber 11 and the second seal chamber 21, and is used for pumping vacuum to the first seal chamber 11 and the second seal chamber 21. Before the film 200 is attached to the curved product 300, the interior of the first cavity 10 and the interior of the second cavity 20 are vacuumized, so that the situation that air bubbles are generated between the film 200 and the curved product 300 due to the existence of air in the attaching process can be improved.

Referring to fig. 5, in an embodiment, the vacuum unit 60 includes a vacuum part 61 and a conducting part 62 connected to the vacuum part 61. The vacuum-pumping member 61 communicates with the second hermetic chamber 21, and the communication member 62 communicates with the first hermetic chamber 11. The vacuum-pumping part 61 and the conducting part 62 are connected with each other through an air pipe between the first cavity 10 and the second cavity 20. Further, the vacuum-pumping member 61 is a vacuum pump, and the conduction member 62 is a conduction valve.

When the first sealed cavity 11 and the second sealed cavity 21 need to be simultaneously vacuumized, the vacuumizing piece 61 and the conducting piece 62 are both in an open state, so that the first sealed cavity 11 and the second sealed cavity 21 are simultaneously vacuumized. At this time, the first and second

hermetic chambers

11 and 21 are in a vacuum equilibrium state. When the vacuumizing member 61 is turned on and the conducting member 62 is turned off, the first sealed cavity 11 is no longer vacuumized, and the second sealed cavity 21 continues to be vacuumized. When the evacuation member 61 and the conduction member 62 are both in the closed state, the first seal chamber 11 and the second seal chamber 21 are no longer subjected to the evacuation process.

The first and

second chambers

10 and 20 have a large amount of air therein before the film 200 is attached to the curved product 300. In the process of attaching, air exists between the curved product 300 and the film 200, and air bubbles are easily formed between the curved product 300 and the film 200 after attaching. After the first cavity 10 and the second cavity 20 are vacuumized, air in the cavities can be pumped out, so that air in a sealed space formed between the first cavity 10 and the second cavity 20 is thin, and the condition of bubbles on a product in the attaching process is improved. In addition, when the second seal chamber 21 is separately vacuumized, a pressure difference is formed between the first seal chamber 11 and the second seal chamber 21. When the pressure storage unit 50 is further combined to release the pressurized air pressure into the first sealed cavity 11, the pressure difference between the first sealed cavity 11 and the second sealed cavity 21 is further increased, and the pressure difference forms a pressure to drive the membrane 200 to be attached to the curved product 300.

Referring to fig. 6, in an embodiment, the non-contact film laminating apparatus 100 further includes a fixing member 70. The fixing member 70 is provided on the first chamber 10 or the second chamber 20 to fix the diaphragm 200. The fixing member 70 includes an adsorption member 71, and the adsorption member 71 is disposed on an end surface of the second chamber 20 to adsorb the diaphragm 200. Further, the adsorption member 71 is disposed on an end surface of the second cavity 20 facing the first cavity 10, and the adsorption member 71 is circumferentially disposed around the second cavity 20.

In one embodiment, the absorption member 71 is an absorption hole. The adsorption hole is provided on the end surface of the second cavity 20, and when the diaphragm 200 is provided on the second cavity 20, the diaphragm 200 is fixed at the adsorption hole position. Set up the adsorption hole along second cavity 20 circumference, increased the adsorption area of second cavity 20 to better adsorb diaphragm 200. Wherein, the adsorption hole can be connected with a structure with a suction effect to realize the adsorption of the membrane 200.

In an embodiment, the absorption member 71 may be further disposed on an end surface of the first chamber 10. Wherein, the absorption member 71 is disposed on an end surface of the first cavity 10 facing the second cavity 20, and the absorption member 71 is circumferentially disposed around the first cavity 10. Further, the adsorption member 71 is an adsorption hole. The adsorption hole is formed on the first chamber 10, and may also fix the diaphragm 200.

Referring to fig. 6 and 7, in an embodiment, the fixing member 70 includes an absorption hole for absorbing the membrane 200 and a pressing member 72 for pressing the membrane 200. The adsorbing member 71 is disposed on an end surface of the first cavity 10 facing the second cavity 20, the pressing member 72 is disposed on an end surface of the second cavity 20 facing the first cavity 10, and the adsorbing member 71 and the pressing member 72 are disposed oppositely. Alternatively, the suction member 71 is disposed on the end surface of the second chamber 20 facing the first chamber 10, and the pressing member 72 is disposed on the end surface of the first chamber 10 facing the second chamber 20.

Wherein, the adsorption member 71 is an adsorption hole, and the adsorption hole is circumferentially disposed along the first cavity 10 or the second cavity 20. The pressing member 72 is a ram made of rubber, and is also circumferentially disposed along the first chamber 10 or the second chamber 20. Further, when the first chamber 10 or the second chamber 20 has a rectangular structure, the indenter has a rectangular structure. When the absorption piece 71 absorbs the membrane 200, the edge of the membrane 200 is compressed by the compression piece 72, so that the membrane 200 is reinforced, and meanwhile, the compression piece 72 made of rubber can seal the connection position of the first cavity 10 and the second cavity 20, thereby improving the air pressure leakage condition.

It is understood that in other embodiments, the absorption member 71 may be replaced by other structures capable of fixing the diaphragm 200. For example, the suction member 71 may be replaced with a fixing post, and a through hole may be provided at a corresponding position of the diaphragm 200 in order to be able to be engaged with the fixing post.

In the process of fixing the diaphragm 200 by the fixing member 70, after the diaphragm 200 is disposed on the first cavity 10 and/or the second cavity 20, the diaphragm 200 may divide the sealed space formed by the first cavity 10 and the second cavity 20 into a first sealed cavity 11 and a second sealed cavity 21, and the support unit 30 is located in the first sealed cavity 11. At this time, if the air pressure in the pressure storage unit 50 is released, the air pressure exists mainly in the first seal chamber 11, so that a pressure difference is formed between the first seal chamber 11 and the second seal chamber 21. The membrane 200 may be driven to fit over the curved product 300 located in the second sealed chamber 21 under differential air pressure. The curved surface product 300 is placed in the second sealed cavity 21, and in the process of attaching the membrane 200 to the curved surface product 300, the pressure on each position point of the product is balanced and stable, and the pressure on each position point of the membrane 200 is balanced and stable, and the product can be supported by an auxiliary supporting structure in the attaching process, so that the position of the attaching contact point between the two is not easy to generate bubbles and the like.

Referring to fig. 8, in an embodiment, the non-contact film laminating apparatus 100 further includes a control structure 80. The control structure 80 is electrically connected to the first chamber 10, the second chamber 20, the supporting unit 30, and the heating unit 40.

Further, the control structure 80 is electrically connected to the pressure storage unit 50 and the vacuum unit 60. Other structures in the noncontact applicator device 100 may be controlled by the control structure 80. For example, the control structure 80 is electrically connected to the switch member 54 in the pressure storage unit 50. The control structure 80 controls the opening and closing of the tank by controlling the opening and closing member 54. It is understood that the regulating member 44 of the pressure storage unit 50 may also be electrically connected to the control structure 80.

The control structure 80 includes a control cabinet 81, a first control member 82, a second control member 83 and a third control member 84. The control structure 80 is electrically connected to the first cavity 10, the second cavity 20, the supporting unit 30, the heating unit 40, etc. through a control cabinet 81. Adopt switch board 81 and each structure electric connection, the subsequent maintenance of being convenient for, and can be safer control each structure.

The first controller 82 is electrically connected to the control cabinet 81 and connected to the first chamber 10. The first control member 82 is used for controlling the first chamber 10 to release the air pressure. The control assembly is provided with a first control member 82 for controlling the first chamber 10 to be in accordance with the external air pressure.

In one embodiment, the first control member 82 is a pressure relief valve. When the pressure storage unit 50 releases the positive pressure gas source into the first cavity 10 to form a pressure difference with the second cavity 20, the membrane 200 is driven to adhere to the curved product 300. After the film sticking is completed, the positive pressure air source in the first chamber 10 is released through the first control member 82.

The second control element 83 is electrically connected to the control cabinet 81 and connected to the second chamber 20. The second control member 83 is used for controlling the second chamber 20 to release the air pressure. The control structure 80 is provided with a second control member 83 for controlling the second chamber 20 to be consistent with the external air pressure.

In one embodiment, the second control member 83 is a pressure relief valve. After the second cavity 20 is vacuumized by the vacuuming unit 60 and the film sticking to the curved product 300 is further completed, in order to recover the pressure inside the second cavity 20, the air pressure inside the second cavity 20 may be released by the second control member 83.

The third control 84 is electrically connected to the control cabinet 81 and connected to the vacuum extractor 61. The third control 84 is used to control the opening and closing and the speed of the vacuum pumping unit 61. For example, when the first chamber 10 and the second chamber 20 have different sizes, in order to quickly realize the situation that the air existing in the first chamber 10 and the second chamber 20 is relatively thin, the speed of the vacuum-pumping member 61 can be adjusted by the third control member 84, so as to improve the vacuum-pumping efficiency.

In one embodiment, the third control 84 is a speed valve with a switch.

The electrical connection includes a connection mode by a wire and a wireless communication connection mode. For example, control structure 80 may communicate signals to and from temperature controller 45 in heating unit 40.

Referring to fig. 9, in one embodiment, in order to enable the second chamber 20 to move toward the first chamber 10, the non-contact film bonding apparatus 100 further includes a lifting structure 90. The first cavity 10 and the second cavity 20 are disposed on the lifting structure 90. So that the second cavity 20 can move towards the first cavity 10 to be combined with the first cavity 10 under the driving of the lifting structure 90. Through setting up first cavity 10 and second cavity 20 on elevation structure 90, need not to merge first cavity 10 and second cavity 20 through the manual work for the holistic degree of automation of laminating equipment is higher, promotes the laminating efficiency between diaphragm 200 and the curved surface product 300.

The lifting structure 90 includes a mounting bracket 91 and a power source 92. The power source 92 is fixed to the mounting block 91 for driving a part of the mounting block 91 to move. The mounting bracket 91 includes a connecting plate 911, a guide post 912, a first mounting plate 913, and a second mounting plate 914. One end of the guide post 912 is connected to the power source 92, and the first mounting plate 913 is fixed to the other end of the guide post 912. The guide post 912 passes through the connection plate 911, the connection plate 911 is connected to the power source 92, and the connection plate 911 can move up and down along the guide post 912 by the power source 92. The guide posts 912 pass through the second mounting plate 914, and the second mounting plate 914 is disposed between the connecting plate 911 and the first mounting plate 913. Further, the second mounting plate 914 is connected with the connecting plate 911 through a support rod.

The first chamber 10 is fixed to a side of the first mounting plate 913 facing the second mounting plate 914, and the second chamber 20 is fixed to a side of the second mounting plate 914 facing the first mounting plate 913. When the power source 92 drives the connecting plate 911 to move, the connecting plate 911 drives the second mounting plate 914 to move, so that the second cavity 20 can move toward or away from the first cavity 10.

In one embodiment, power source 92 is a cylinder. It is understood that in other embodiments, the power source 92 may be replaced by an electric motor or other structure having equivalent efficacy or function.

The control component is electrically connected to the power source 92 in the lifting structure 90 to control the start or stop of the power source 92.

The film 200 in the above embodiments includes, but is not limited to, a protective film, a process film, a polarizer, and the like. The curved product 300 includes, but is not limited to, an ophthalmic lens, a curved cover plate, a camera lens, and the like. Wherein, the curved surface product refers to a product of which the surface is a curved surface.

Referring to fig. 3 and 9, when the non-contact film sticking apparatus 100 is used to stick the film 200 onto the curved product 300, the sticking process is as follows:

the curved product 300 is placed on the supporting unit 30 to be fixed. The membrane 200 is then placed on the second cavity 20, and the second cavity 20 and the first cavity 10 are merged by driving the second cavity 20 to move toward the first cavity 10.

The heating unit 40 is activated to heat the membrane 200 until the temperature of the curved product 300 is detected to reach a preset value. The vacuumizing unit 60 may be started to simultaneously vacuumize the first cavity 10 and the second cavity 20, and after the vacuum degrees in the first cavity 10 and the second cavity 20 reach a preset value, the vacuumizing unit 60 stops vacuumizing into the first cavity 10, and continues to vacuumize the second cavity 20. The pressure storage unit 50 delivers a positive pressure gas source into the first chamber 10, so that the pressure in the first chamber 10 can be rapidly switched.

The film 200 has a certain ductility after being heated, and at this time, the film 200 is attached to the curved product 300 under the pressure converted by the pressure difference value formed between the first cavity 10 and the second cavity 20.

In summary, the non-contact film laminating apparatus 100 provided in the embodiment of the present application can fix the film 200 directly through the first cavity 10 and the second cavity 20 without using an external tool or structure to fix the film 200. The diaphragm 200 is driven to be attached through the air pressure difference, the situation that the diaphragm 200 is directly pressed or extruded is not needed, and the situations that the diaphragm 200 is damaged or deformed and the like are improved. In addition, after the membrane 200 is heated by the heating unit 40, the membrane 200 has better flexibility, which is more beneficial to attaching the membrane 200 to various curved products 300.

In addition, those skilled in the art should realize that the above embodiments are illustrative only and not limiting to the present application, and that suitable changes and modifications to the above embodiments are within the scope of the disclosure of the present application as long as they are within the true spirit and scope of the present application.

Claims

1. A non-contact film sticking device is used for sticking a film on a curved surface product and comprises a first cavity and a second cavity which is arranged corresponding to the first cavity,

the second cavity can move relative to the first cavity, the first cavity and the second cavity can be closed to form a sealed space, and the sealed space is divided into a first sealed cavity and a second sealed cavity through the diaphragm;

the non-contact film sticking device further comprises:

the supporting unit is arranged on the inner wall of the second cavity and is positioned in the second sealing cavity, and the supporting unit is used for bearing the curved surface product and can drive the curved surface product to move relative to the second cavity;

and the heating unit is arranged in the first cavity and positioned in the first sealing cavity, and is used for heating the diaphragm.

2. The non-contact film laminating device according to claim 1, wherein the supporting unit comprises a supporting fixture and a driving member, the supporting unit carries the curved surface product through the supporting fixture, and the driving member is connected to the supporting fixture and used for driving the supporting fixture to move.

3. The non-contact film laminating device according to claim 2, wherein the supporting unit further comprises a supporting member, the supporting member is disposed on the periphery of the supporting jig, and the supporting member and the supporting jig are used for carrying the curved surface product together.

4. The non-contact film laminating device according to claim 1, wherein the heating unit includes a heating member and a heat-conducting member, the heat-conducting member being provided at a side of the heating member adjacent to the second chamber for diffusing heat emitted from the heating member to the product.

5. The non-contact film laminating device of claim 4, wherein along the moving direction of the second cavity, the projected areas of the heating element and the heat conducting element on the second cavity are larger than the projected area of the curved product on the second cavity.

6. The noncontact film applicator of claim 1, further comprising a pressure storage unit in communication with said first sealed chamber for providing a source of positive pressure gas into said first sealed chamber.

7. The non-contact film pasting device as claimed in claim 6, wherein the pressure storage unit comprises a gas source, a pressurizing member and a pressure storage tank, the pressurizing member is respectively connected with the gas source and the pressure storage tank, the pressurizing member is used for pressurizing the gas pressure delivered by the gas source, and the pressurized gas source is delivered from the pressurizing member to the pressure storage tank for storage.

8. The noncontact film applicator of claim 1, further comprising a vacuum unit in communication with said first sealed chamber and said second sealed chamber for evacuating said first sealed chamber and said second sealed chamber.

9. The non-contact film laminating device according to claim 8, wherein the vacuumizing unit comprises a vacuumizing member and a conducting member connected with the vacuumizing member, the vacuumizing member is communicated with the second sealed cavity, and the conducting member is communicated with the first sealed cavity.

10. The noncontact film applicator of claim 1, further comprising a fixing member disposed on the first cavity and/or the second cavity for fixing the membrane.