Film splicing equipment and film splicing method

Abstract

The present invention discloses a film splicing device and a film splicing method. The film splicing device includes a machine, a film conveying device, a protective film conveying device and a bonding device. The film conveying device is movably installed on the machine, and is provided with a plurality of mutually independent first negative pressure zones. The film is placed on the surface of the first negative pressure zone; the protective film conveying device is installed on the machine; the bonding device is installed on the machine, and the initial end of the protective film passes through and extends out of the bonding device, and the first negative pressure zone moves between a position close to the bonding device and a position far away from the bonding device; when the first negative pressure zone moves to a position close to the bonding device, the protective film conveying device drives the protective film to move forward and then drives the film to be bonded to the protective film. When one of the first negative pressure zones is broken or damaged, it does not affect the negative pressure adsorption of other first negative pressure zones, so that the film is still adsorbed by the negative pressure, further ensuring the flatness of the bonding between the film and the protective film, and improving the qualified rate of film bonding.

Description

Technical Field

[0001] The invention relates to a film chip connection device and a chip connection method, in particular to a film chip connection device and a chip connection method with a nano silver circuit. Background Art

[0002] When existing thin films, especially thin films with nanosilver circuits, are laminated to protective films, the thin films need to be vacuum-adsorbed first to prevent uneven lamination, warping or bending of the thin films and protective films. However, in existing equipment, the same negative pressure chamber is used to vacuum-adsorb the thin films. When any part of the chamber is broken, the vacuum adsorption of the entire film fails, which still causes uneven lamination or bending of the thin film and protective film.

[0003] Moreover, different types of films require different types of equipment for bonding and cannot be bonded on the same equipment, which not only wastes huge equipment costs, but also wastes manpower and material resources. Summary of the invention

[0004] The present invention provides a film splicing device and a film splicing method, which overcomes the shortcomings of the background technology. One of the technical solutions adopted by the present invention to solve the technical problem is:

[0005] Thin film sheeting equipment, which includes:

[0006] Machine;

[0007] A film conveying device for conveying a film, which is movably mounted on the machine platform and is provided with a plurality of mutually independent first negative pressure zones, and the film is placed on the surface of the first negative pressure zones;

[0008] A protective film conveying device for conveying the protective film, which is installed on the machine platform;

[0009] A laminating device is installed on the machine platform, the initial end of the protective film passes through and extends out of the laminating device, and the first negative pressure area moves between a position close to the laminating device and a position far from the laminating device;

[0010] When the first negative pressure area moves to a position close to the laminating device, the protective film conveying device drives the protective film to move forward and then drives the thin film to be laminarized on the protective film.

[0011] In a preferred embodiment, there are at least two first negative pressure zones, which are arranged side by side and spaced apart along the moving direction of the film.

[0012] In a preferred embodiment: the film conveying device is provided with a giving way member capable of giving way to the first negative pressure zone, and the giving way member moves between a position where its surface is flush with the surface of the first negative pressure zone and a position where it is staggered with the first negative pressure zone, and the film is placed above the first negative pressure zone and the giving way member.

[0013] In a preferred embodiment: the giving way member is provided with a second negative pressure zone.

[0014] In a preferred embodiment: the sheet connection device also includes a signal sensor and a controller. The signal sensor is installed on the machine and at the rear end of the first negative pressure zone close to the rear end. The signal of the signal sensor is connected to the controller, and the controller is connected to the film conveying device and the protective film conveying device.

[0015] In a preferred embodiment: when the end of the film passes through the rear end of the last first negative pressure zone, the signal sensor generates a signal and sends it to the controller. The controller gradually closes several first negative pressure zones from back to front based on the signal. When the negative pressure of the first negative pressure zone closest to the bonding device is closed, the controller controls the protective film conveying device to transport the protective film forward a set distance D.

[0016] In a preferred embodiment, when the end of the film moves a width of the first negative pressure zone, the controller turns off the negative pressure of the first negative pressure zone.

[0017] In a preferred embodiment: the protective film conveying device includes an unwinding shaft and an unwinding motor which is transmission-connected to the unwinding shaft, and the protective film is hung on the unwinding shaft.

[0018] In a preferred embodiment: the protective film conveying device also includes a tension adjustment mechanism, which includes a balance wheel and a swing shaft. The balance wheel is connected to the swing shaft through a swing rod. The initial end of the protective film passes around the swing wheel and the swing shaft in sequence and then passes through the bonding device.

[0019] In a preferred embodiment: the laminating device includes at least one group of laminating rollers, each group of laminating rollers includes two laminating rollers arranged up and down, and the protective film is located between the two laminating rollers.

[0020] The second technical solution adopted by the present invention to solve its technical problem is:

[0021] The film splicing method includes:

[0022] Step 10, initially, the first negative pressure area is located far away from the laminating device, the film is placed on the surface of the first negative pressure area, the protective film is placed on the protective film conveying device, and the initial end of the protective film passes through and extends out of the laminating device;

[0023] Step 20, start the film conveying device, the first negative pressure zone moves to a position close to the laminating device, the protective film conveying device drives the protective film to move forward and then drives the film to be laminated on the protective film, and the end of the film passes through several first negative pressure zones in sequence;

[0024] Step 30, after the film and the protective film are bonded, the first negative pressure area is restored to a position away from the bonding device;

[0025] Step 40, placing a new film on the surface of the first negative pressure area again, and repeating steps 20 and 30.

[0026] In a preferred embodiment: in step 20, when the end of the film passes through the rear end of the first negative pressure zone at the last end, the signal sensor generates a signal and sends it to the controller. The controller gradually closes several first negative pressure zones from back to front based on the signal. When the negative pressure of the first negative pressure zone closest to the laminating device is closed, the controller controls the protective film conveying device to convey the protective film forward a set distance D. Then, the protective film conveying device pauses and waits.

[0027] In a preferred embodiment: in step 10, initially, the surface of the giving way member is flush with the surface of the first negative pressure zone, and the front and rear end surfaces of the film are placed on the surface of the giving way member and the surface of the first negative pressure zone respectively; in step 20, when the film conveying device is started, the giving way member moves downward to a position offset from the first negative pressure zone to make way for the movement of the first negative pressure zone, and the first negative pressure zone is then moved to a position close to the laminating device so that the front end of the film can be closer to or contact the laminating device.

[0028] Compared with the background technology, this technical solution has the following advantages:

[0029] 1. Since the film conveying device is provided with a plurality of independent first negative pressure zones, the film is placed on the surface of the first negative pressure zones, and each first negative pressure zone performs negative pressure adsorption on the film, and when the end of the film leaves the front end of the frontmost first negative pressure zone, the lamination of the film and the protective film is completed or is about to be completed, which can ensure the flatness of the lamination between the film and the protective film; when one of the first negative pressure zones is broken or damaged, it does not affect the negative pressure adsorption of other first negative pressure zones, so that the film is still adsorbed by the negative pressure, which further ensures the flatness of the lamination between the film and the protective film and improves the qualified rate of film lamination.

[0030] 2. The film conveying device has a give-way piece, which moves between a position where its surface is flush with the surface of the first negative pressure zone and a position where it is offset from the first negative pressure zone. The film is placed above the first negative pressure zone and the give-way piece. When the film conveying device is started, the give-way piece can be moved downward first. At this time, the front end of the film is in a suspended state, so that when the first negative pressure zone is moved forward to a position close to the bonding device, the front end of the film can be closer to or even contact the bonding device, to ensure that the protective film can quickly contact the film so that the film can be firmly bonded to the bottom surface of the protective film.

[0031] 3. The clearance piece is provided with a second negative pressure area, so that the film can be adsorbed by the negative pressure when placed on the surface of the clearance piece, further ensuring the flatness of the film and the protective film.

[0032] 4. When the end of the film passes through the rear end of the first negative pressure zone at the last end, the signal sensor generates a signal and sends it to the controller. The controller gradually closes several first negative pressure zones from back to front based on the signal. When the negative pressure in the first negative pressure zone closest to the bonding device is closed, the controller controls the protective film conveying device to convey the protective film forward a set distance D. This setting can place films of any type or size in the first negative pressure zone, and ensure that the distance between two adjacent films is D. It has strong versatility and is suitable for films of all types or sizes, greatly reducing the cost of purchasing equipment and the cost of manpower and material resources.

[0033] 5. When the end of the film moves the width of a first negative pressure zone, the controller closes the first negative pressure zone. Since the width of each first negative pressure zone is fixed, the moving speed of the first negative pressure zone can be set to a uniform speed, and the time for the end of the film to move a first negative pressure zone is fixed. Therefore, the controller can decide when to close the negative pressure of the first negative pressure zone based on the time the end of the film moves.

[0034] 6. The protective film conveying device also includes a tension adjustment mechanism. The initial end of the protective film passes through the swing wheel and the swing shaft in sequence and then passes through the laminating device. Since the tension adjustment mechanism has its own weight, when the tension of the protective film is insufficient and causes it to relax, the swing wheel swings downward under the action of its own gravity to tighten the protective film and increase its tension; vice versa. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0036] Figure 1 A schematic side view of a sheet-joining device according to a preferred embodiment is shown.

[0037] Figure 2 A schematic top view of a chip connection device according to a preferred embodiment is shown.

[0038] Figure 3 A schematic structural diagram of the first negative pressure zone and the second negative pressure zone of a preferred embodiment is depicted. DETAILED DESCRIPTION

[0039] Please refer to Figures 1 to 3 A preferred embodiment of a film splicing device includes a machine platform 1, a film conveying device 10, a protective film conveying device 20, and a laminating device 30.

[0040] The film conveying device 10 is used to convey the film. It is movably installed on the machine platform 1 and is provided with a plurality of mutually independent first negative pressure areas. The film is placed on the surface of the first negative pressure areas.

[0041] In this embodiment, the film conveying device 10 further includes a film conveying driving mechanism (not shown in the figure) installed on the machine 1. The film conveying driving mechanism can be a transmission structure of a driving motor and a conveyor belt, or a transmission structure of a driving cylinder, and the specific structure is not limited thereto. The film conveying driving mechanism is transmission-connected to the first negative pressure area so that the first negative pressure area can move forward and backward relative to the machine.

[0042] There are at least two first negative pressure zones, which are arranged side by side and spaced apart along the film advancing direction. In this embodiment, there are three first negative pressure zones, and the lengths of the three first negative pressure zones are the same, and their widths can be the same or different. For the convenience of distinction, the three first negative pressure zones are named first negative pressure zone 1, first negative pressure zone 2, and first negative pressure zone 3 from back to front.

[0043] like Figure 2 As shown, a plurality of first negative pressure adsorption holes 100 are provided on the surface of each first negative pressure zone, and each first negative pressure zone is also provided with a first negative pressure adsorption cavity and a first negative pressure gauge. The first negative pressure adsorption cavity of each first negative pressure zone is connected to the first negative pressure adsorption hole, and the first negative pressure gauge is used to monitor the negative pressure of each first negative pressure adsorption cavity. Figure 1 As shown, the three first negative pressure gauges are all arranged on the side of the machine.

[0044] In this embodiment, the film conveying device 10 is provided with a giving way member 11 that can give way to the first negative pressure zone. The giving way member 11 moves between a position where its surface is flush with the surface of the first negative pressure zone and a position where it is staggered with the first negative pressure zone, and the film is placed above the first negative pressure zone and the giving way member 11.

[0045] In this embodiment, the clearance member 11 is in the shape of a long strip, and a first stopper 12 is protruding upward at the right end thereof. When the film is placed on the surface of the clearance member 11, the front end of the film just abuts against the first stopper 12. Figure 1 As shown, the side of the machine 1 is also provided with a second stopper 13, and when the film is placed on the surface of the stopper 11, the side end of the film just rests on the second stopper 13. The cooperation between the first stopper 12 and the second stopper 13 can better position the film.

[0046] In this embodiment, the said yielding member 11 is provided with a second negative pressure area 4. The second negative pressure area 4 includes a second negative pressure adsorption hole, a second negative pressure cavity 41, and a second negative pressure gauge, and the structure of the second negative pressure area 4 is the same as that of the first negative pressure area. When the film is placed on the surface of the yielding member, it can be adsorbed by the negative pressure, further ensuring the flatness of the film and the protective film.

[0047] The protective film conveying device 20 is used to convey the protective film and is installed on the machine platform 1 .

[0048] In this embodiment, the protective film conveying device 20 includes an unwinding shaft 21 and an unwinding motor (not shown in the figure) that is transmission-connected to the unwinding shaft 21 , and the protective film is hung on the unwinding shaft 21 .

[0049] In this embodiment, the protective film conveying device 20 further includes a tension adjustment mechanism, which includes a balance wheel 22 and a swing shaft 23. The balance wheel 22 is connected to the swing shaft 23 through a swing rod 24. The initial end of the protective film passes through the swing wheel 22 and the swing shaft 23 in sequence and then passes through the laminating device 30. Since the tension adjustment mechanism has its own weight, when the tension of the protective film is insufficient and causes it to relax, the swing wheel 22 swings downward under its own gravity to tighten the protective film and increase its tension; vice versa. As needed, weights can be added or reduced on the swing rod 24 to increase or reduce the weight of the tension adjustment mechanism.

[0050] In this embodiment, the protective film conveying device 20 further includes a reel 25, which is mounted on the machine 1 and close to the unwinding shaft 21. The reel 25 is used to collect waste materials of the protective film, such as the base film. That is, the protective film raw material includes two layers, the protective film and the base film. The protective film raw material is hung on the unwinding shaft 21, and the base film is collected by the reel 25.

[0051] The laminating device 30 is installed on the machine 1, and the initial end of the protective film passes through and extends out of the laminating device 30, and the first negative pressure zone moves between a position close to the laminating device 30 and a position away from the laminating device 30; when the first negative pressure zone moves to a position close to the laminating device 30, the protective film conveying device 20 drives the protective film forward and then drives the film to be laminated on the protective film.

[0052] In this embodiment, the laminating device 30 includes at least one set of laminating rollers, each set of laminating rollers includes two laminating rollers 31 arranged vertically, and the protective film is located between the two laminating rollers 31. Figure 1 As shown, the laminating device is provided with two groups of laminating rollers, the two groups of laminating rollers are arranged in a front-to-back manner, and the positions and intervals of the two rollers 31 of the two groups of laminating rollers are the same.

[0053] In this embodiment, the film connection device also includes a signal sensor 5 and a controller. The signal sensor 5 is installed on the machine 1 and is close to the rear end of the first negative pressure zone at the rear end. The signal of the signal sensor 5 is connected to the controller, and the controller is connected to the film conveying device 10 and the protective film conveying device 20.

[0054] In this embodiment, when the end of the film passes through the rear end of the first negative pressure zone 1, the signal sensor 5 generates a signal and sends it to the controller. The controller gradually closes the first negative pressure zone 1, the first negative pressure zone 2, and the first negative pressure zone 3 from back to front based on the signal. When the first negative pressure zone 3 is closed, the controller controls the protective film conveying device 20 to convey the protective film forward a set distance D.

[0055] In this embodiment, when the end of the film moves the width of a first negative pressure zone, the controller turns off the negative pressure of the first negative pressure zone. Since the width of each first negative pressure zone is fixed, the moving speed of the first negative pressure zone can be set to a uniform speed, and the time for the end of the film to move a first negative pressure zone is fixed. Therefore, the controller can decide when to turn off the negative pressure of the first negative pressure zone according to the time the end of the film moves. Taking the first negative pressure zone 1 as an example, the time for the end of the film to move from the rear end of the first negative pressure zone 1 to the front end of the first negative pressure zone 1 is set to T1. After the controller receives the signal from the signal sensor and after T1 time, it turns off the negative pressure of the first negative pressure zone 1. By analogy, the controller gradually turns off the negative pressure of the first negative pressure zone 2 and the first negative pressure zone 3.

[0056] The film splicing method includes:

[0057] Step 10, initially, the first negative pressure area is located far away from the laminating device 30, the film is placed on the surface of the first negative pressure area, the protective film is placed on the protective film conveying device 20, and the initial end of the protective film passes through and extends out of the laminating device;

[0058] In this embodiment, in step 10, initially, the surface of the displacing member 11 is flush with the surface of the first negative pressure zone, and the front and rear end surfaces of the film are placed on the surface of the displacing member 11 and the surface of the first negative pressure zone respectively;

[0059] Step 20, start the film conveying device 10, the first negative pressure zone moves to a position close to the laminating device 30, the protective film conveying device 20 drives the protective film to move forward and then drives the film to be laminated on the protective film, and the end of the film passes through several first negative pressure zones in sequence;

[0060] In this embodiment, in step 20, when the film conveying device 20 is started, the giving way member 11 moves downward to a position offset from the first negative pressure zone to give way to the movement of the first negative pressure zone, and the first negative pressure zone moves to a position close to the laminating device 30, so that the front end of the film can be closer to or contact the laminating device 30;

[0061] In this embodiment, in step 20, when the end of the film passes through the rear end of the first negative pressure zone 1, the signal sensor 5 generates a signal and sends it to the controller. The controller gradually closes the negative pressure of several first negative pressure zones from back to front according to the signal. When the negative pressure of the first negative pressure zone 3 is closed, the controller controls the protective film conveying device 20 to convey the protective film forward for a set distance D. Then, the protective film conveying device 20 pauses and waits.

[0062] Specific:

[0063] Since the width of each first negative pressure zone is fixed, the moving speed of the first negative pressure zone can be set to a uniform speed, and the time for the end of the film to move a first negative pressure zone is fixed. Therefore, the controller can decide when to turn off the negative pressure of the first negative pressure zone according to the time the end of the film moves. Taking the first negative pressure zone 1 as an example, the time for the end of the film to move from the rear end of the first negative pressure zone 1 to the front end of the first negative pressure zone 1 is set to T1. After the controller receives the signal from the signal sensor 5 and after T1 time, it turns off the negative pressure of the first negative pressure zone 1. By analogy, the controller gradually turns off the negative pressure of the first negative pressure zone 2 and the first negative pressure zone 3.

[0064] Step 30, after the film and the protective film are bonded, the first negative pressure area is restored to a position away from the bonding device;

[0065] Step 40, placing a new film on the surface of the first negative pressure area again, and repeating steps 20 and 30.

[0066] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope of the present invention.

Claims

1. A film splicing device, characterized in that: It includes: Machine; A film conveying device for conveying a film, which is movably mounted on the machine platform and is provided with a plurality of mutually independent first negative pressure areas, and the film is placed on the surface of the first negative pressure areas; A protective film conveying device for conveying the protective film, which is installed on the machine platform; A laminating device is installed on the machine platform, the initial end of the protective film passes through and extends out of the laminating device, and the first negative pressure area moves between a position close to the laminating device and a position far from the laminating device; When the first negative pressure zone moves to a position close to the laminating device, the protective film conveying device drives the protective film to move forward and then drives the thin film to be laminarized on the protective film; The film conveying device is provided with a giving way member capable of giving way to the first negative pressure area, the giving way member moves between a position where its surface is flush with the surface of the first negative pressure area and a position where it is offset from the first negative pressure area, and the film is placed above the first negative pressure area and the giving way member; The sheet connection device also includes a signal sensor and a controller. The signal sensor is installed at the rear end of the first negative pressure zone near the rear end of the machine. The signal of the signal sensor is connected to the controller. The controller is connected to the film conveying device and the protective film conveying device. When the end of the film passes through the rear end of the first negative pressure zone at the last end, the signal sensor generates a signal and sends it to the controller. The controller gradually closes the negative pressure of several first negative pressure zones from back to front based on the signal. When the negative pressure of the first negative pressure zone closest to the bonding device is closed, the controller controls the protective film conveying device to transport the protective film forward a set distance D.

2. The film splicing device according to claim 1, characterized in that: There are at least two first negative pressure zones, which are arranged side by side and spaced apart along the advancing direction of the film.

3. The film splicing device according to claim 1, characterized in that: The giving way member is provided with a second negative pressure area.

4. The film splicing device according to claim 1, characterized in that: When the end of the film moves a width of the first negative pressure zone, the controller turns off the negative pressure in the first negative pressure zone.

5. The film splicing device according to claim 1, characterized in that: The protective film conveying device comprises an unwinding shaft and an unwinding motor which is transmission-connected to the unwinding shaft, and the protective film is hung on the unwinding shaft.

6. The film splicing device according to claim 5, characterized in that: The protective film conveying device also includes a tension adjustment mechanism, which includes a balance wheel and a swing shaft. The balance wheel is connected to the swing shaft through a swing rod. The initial end of the protective film passes through the swing wheel and the swing shaft in sequence and then passes through the laminating device.

7. The film splicing device according to claim 1, characterized in that: The laminating device comprises at least one group of laminating rollers, each group of laminating rollers comprises two laminating rollers arranged up and down, and the protective film is located between the two laminating rollers.

8. A film splicing method, using the film splicing device according to any one of claims 1 to 7, characterized in that: include: Step 10, initially, the first negative pressure area is located far away from the laminating device, the film is placed on the surface of the first negative pressure area, the protective film is placed on the protective film conveying device, and the initial end of the protective film passes through and extends out of the laminating device; Step 20, start the film conveying device, the first negative pressure zone moves to a position close to the laminating device, the protective film conveying device drives the protective film to move forward and then drives the film to be laminated on the protective film, and the end of the film passes through several first negative pressure zones in sequence; Step 30, after the film and the protective film are bonded, the first negative pressure area is restored to a position away from the bonding device; Step 40, placing a new film on the surface of the first negative pressure area again, and repeating steps 20 and 30.

9. The film splicing method according to claim 8, characterized in that: In step 20, when the end of the film passes through the rear end of the first negative pressure zone at the last end, the signal sensor generates a signal and sends it to the controller. The controller gradually closes the negative pressure of several first negative pressure zones from back to front based on the signal. When the negative pressure of the first negative pressure zone closest to the bonding device is closed, the controller controls the protective film conveying device to transport the protective film forward a set distance D. Then, the protective film conveying device pauses and waits.

10. The film splicing method according to claim 8, characterized in that: In step 10, initially, the surface of the giving way piece is flush with the surface of the first negative pressure zone, and the front and rear end surfaces of the film are placed on the surface of the giving way piece and the surface of the first negative pressure zone respectively; in step 20, when the film conveying device is started, the giving way piece moves downward to a position offset from the first negative pressure zone to make way for the movement of the first negative pressure zone, and the first negative pressure zone is then moved to a position close to the laminating device so that the front end of the film can be closer to or contact the laminating device.

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