A film-tearing device and a film-tearing method

Abstract

This invention discloses a film-tearing device, including a film-adhesive mechanism, a lifting film-tearing mechanism, a film-clamping mechanism, and a horizontal film-tearing mechanism. The film-adhesive mechanism includes an adhesive roller frame, an adhesive roller, and an adhesive roller drive mechanism. The lifting film-tearing mechanism includes a longitudinally arranged linear motor module for driving the adhesive roller frame to move vertically. The film-clamping mechanism includes a clamping roller frame, a pair of clamping rollers on each side of the clamping roller frame, and corresponding clamping roller clamping drive mechanisms and clamping roller braking mechanisms. The horizontal film-tearing mechanism includes a transversely arranged linear motor module for driving the clamping roller frame to move horizontally. The film-clamping roller design, in conjunction with the adhesive roller, allows the clamping rollers to rotate during lifting film-tearing, allowing the film to continue passing through until it is completely torn from the board. Once torn, the film is clamped and torn off the adhesive roller by a braking electromagnetic brake. The entire process is continuous and uninterrupted, leaving no white marks or residual adhesive on the board that could damage the product, avoiding material waste, and providing smooth operation without easily damaging the film.

Description

Technical Field

[0001] This invention pertains to film-tearing equipment, specifically to a film-tearing device and a film-tearing method. Background Technology

[0002] Semi-finished boards (such as chip substrates) are covered with protective films on both their upper and lower surfaces. During the production process, the films need to be removed for subsequent processing.

[0003] Existing film-tearing devices use adhesive tape to stick the film and pull it up, and then use grippers to tear the film completely. However, due to the different adhesive properties of different films, using grippers to tear the film with a strong adhesive property can easily damage the film. Furthermore, if the operation is interrupted, white marks from the film can easily be left on the board. In addition, using adhesive tape to stick the film also results in material waste. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a film-tearing device and a film-tearing method, which can make the film-tearing action smooth and continuous, improve the film-tearing quality and avoid material waste.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] On one hand, a film-tearing device includes a film-adhesive mechanism, a lifting film-tearing mechanism, a film-clamping mechanism, and a horizontal film-tearing mechanism. The film-adhesive mechanism includes an adhesive roller frame, an adhesive roller mounted on the adhesive roller frame, and an adhesive roller driving mechanism. The lifting film-tearing mechanism includes a linear motor module arranged longitudinally and used to drive the adhesive roller frame to move longitudinally up and down. The film-clamping mechanism includes a clamping roller frame, a pair of clamping rollers on each side of the clamping roller frame, and corresponding clamping roller clamping driving mechanisms and clamping roller braking mechanisms. The horizontal film-tearing mechanism includes a linear motor module arranged laterally and used to drive the clamping roller frame to move horizontally.

[0007] The film-tearing device consists of two sets, positioned opposite each other above and below the sheet material conveying roller track.

[0008] The clamping roller frame is also provided with a swing arm mechanism on each side for knocking off the film, including a swing arm located inside the end of the clamping roller and a swing arm rotation drive motor located on one side of the clamping roller and connected to the swing arm.

[0009] The sticking roller includes several segments spaced apart on the rotating shaft, and the sticking roller drive mechanism includes a sticking roller drive motor and a transmission belt connecting the sticking roller drive motor and the rotating shaft.

[0010] The clamping roller drive mechanism includes a double-rod cylinder.

[0011] The diaphragm roller braking mechanism includes electromagnetic brakes disposed on each diaphragm roller.

[0012] The membrane clamping mechanism also includes an optical fiber sensor for detecting whether a membrane passes through the membrane clamping roller.

[0013] On the other hand, a film-tearing method of a film-tearing device includes the following steps:

[0014] A. The lifting and tearing film mechanism drives the adhesive roller to rise and fall to the surface of the board and contact the film. Then, the adhesive roller driving mechanism drives the adhesive roller to rotate so that it sticks to the film and tears one end of the film.

[0015] B. The lifting and tearing film mechanism drives the adhesive roller to move away from the board and make the film pass through the film clamping rollers. When the fiber optic sensor detects this, the film clamping roller clamping drive mechanism controls the film clamping rollers to move relative to each other to clamp the film. At this time, the film clamping rollers can rotate freely so that the film can continue to pass through.

[0016] C. When the adhesive roller is raised and lowered until the film is completely torn off the board, the film clamping roller braking mechanism brakes the film clamping roller, and the horizontal film tearing mechanism drives the film clamping roller to move horizontally to tear off the film on the adhesive roller.

[0017] It also includes step D. The swing arm is driven by a swing arm rotation drive motor to rotate the swing arm to knock off the torn film that is draped on the film clamping roller.

[0018] The film-tearing device of the present invention has the following advantages:

[0019] 1. The adhesive roller tearing design avoids the material waste of using tape, and the operation is smooth and less likely to damage the film;

[0020] 2. The film clamping roller design is adopted and works with the adhesive roller. When the film is lifted and torn, the film clamping roller can rotate to allow the film to continue to pass through until it is completely torn off the board. Once torn off, the electromagnetic brake can clamp the film and tear it off from the adhesive roller. The whole process is smooth and without interruption, and it will not easily leave white marks on the board.

[0021] 3. The design adopts a swing arm mechanism, which can knock off the torn film that is stuck on the film clamping roller by rotating the swing arm downward. Attached Figure Description

[0022] The invention will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0023] Figure 1 This is a schematic diagram showing the usage of the two sets of film-tearing devices arranged vertically according to the present invention.

[0024] Figure 2 This is a three-dimensional schematic diagram of an adhesive film mechanism and a lifting and tearing film mechanism of the film-tearing device of the present invention;

[0025] Figure 3 This is a three-dimensional schematic diagram of a film clamping mechanism of the film-tearing device of the present invention;

[0026] Figure 4 This is a three-dimensional schematic diagram of the single-sided clamping mechanism of the present invention;

[0027] Figure 5 This is a three-dimensional schematic diagram of the single-sided clamping roller and swing arm mechanism of the present invention;

[0028] Figure 6 This is a three-dimensional schematic diagram of the adhesive roller driving mechanism of the present invention. Detailed Implementation

[0029] The film-peeling device of the present invention can be configured according to the film-peeling requirements of the board, such as... Figure 1 The diagram shows the application to sheets with protective films on both sides. Two sets of film-removing devices 10 of this invention are positioned opposite each other above and below the sheet conveyor rollers. The specific description will focus on the upper set as an example. Figure 2-6 As shown, the film-tearing device 10 includes a film-adhesive mechanism 11, a lifting film-tearing mechanism 12, a film-clamping mechanism 13, and a horizontal film-tearing mechanism 14. The film-adhesive mechanism 11 includes an adhesive roller frame 111, adhesive rollers 112 mounted on the adhesive roller frame 111, and an adhesive roller drive mechanism 113. The adhesive rollers 112 are several segments spaced apart on the rotating shaft 114, and the number can be selected according to the film width and viscosity. Their surfaces are adhesive and can adhere to the film. The adhesive roller drive mechanism 113 includes an adhesive roller drive motor and a transmission belt 115 connecting the adhesive roller drive motor and the rotating shaft 114. The adhesive roller drive motor can drive the adhesive rollers 112 to rotate half a turn, which can make them adhere to the film firmly and tear one end of the film. The lifting film-tearing mechanism 12 includes a longitudinally arranged mechanism for driving the adhesive roller frame 111 to lift longitudinally. The linear motor module lowers, driving the adhesive roller frame 111 to rise longitudinally, which allows the film stuck to the adhesive roller 112 to continue to be torn apart until it is torn off the board. The film clamping mechanism 13 includes a clamping roller frame 131, a pair of film clamping rollers 132 on each side of the clamping roller frame 131, and corresponding film clamping roller clamping drive mechanism 133 and film clamping roller braking mechanism 134. The film clamping roller clamping drive mechanism 133 includes a double-rod cylinder 135, which drives the clamping or loosening between the two film clamping rollers 132. Even when the two film clamping rollers 132 are clamped, the film clamping rollers 132 can still rotate freely. The film clamping rollers 132 can be braked by their respective electromagnetic brakes and other film clamping roller braking mechanisms 134, thereby clamping the film passing between them. The horizontal film-tearing mechanism 14 includes a linear motor module arranged laterally and used to drive the clamping roller frame 131 to move horizontally. The horizontal movement can move the clamping roller 132 away from the sticking roller 112, thereby tearing off the film stuck on the sticking roller 112.

[0030] Each side of the clamping roller frame 131 is also provided with a swing arm mechanism 15 for knocking off the film, including a swing arm 151 located inside the end of the clamping roller 132 and a swing arm rotation drive motor 152 located on one side of the clamping roller 132 and connected to the swing arm 151. The swing arm rotation drive motor 152 can drive the swing arm 151 to rotate.

[0031] The membrane clamping mechanism 13 also includes an optical fiber sensor 16 for detecting whether a membrane passes through the membrane clamping roller 132.

[0032] The film-tearing method using the film-tearing device 10 includes the following steps:

[0033] A. The adhesive roller 112 is driven by the lifting and tearing film mechanism 12 to descend to the upper surface of the board and contact the film. Then, the adhesive roller driving mechanism 113 drives the adhesive roller 112 to rotate (usually half a turn is enough) so that it sticks to the film and tears one end of the film.

[0034] B. The lifting and tearing film mechanism 12 drives the adhesive roller 112 to rise in the opposite direction and leave the board, and the film passes through the clamping roller 132 above. When the fiber optic sensor 16 detects this, the double-rod cylinder 135 of the clamping roller clamping drive mechanism 133 drives the clamping roller 132 to move relative to each other and clamp the film. At this time, the clamping roller 132 can rotate freely so that the film can continue to pass through.

[0035] C. When the adhesive roller 112 rises and falls until the film is completely torn off the board (see...) Figure 1 The diagram shows the lifting and tearing film mechanism 12 that is raised and lowered to the tearing position. The film clamping roller 132 is braked by the film clamping roller braking mechanism 134. At this time, the film clamping roller 132 cannot rotate but can clamp the film. The horizontal tearing film mechanism 14 drives the film clamping roller 132 to move horizontally and tear the film off the adhesive roller 112.

[0036] D. The swing arm 151 is driven to rotate downward by the swing arm rotation drive motor 152 to knock off the film that has been torn off the adhesive roller 112 but is still on the film clamping roller 132.

[0037] The film-tearing method of the lower film-tearing device 10 is the same, except that the vertical movement direction is reversed. By operating the upper and lower film-tearing devices 10 simultaneously, the double films on the board can be peeled off together.

[0038] However, those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Any changes or modifications to the above embodiments that are within the essential spirit of the present invention will fall within the scope of the claims of the present invention.

Claims

1. A film-tearing device, comprising a film-adhesive mechanism, a lifting film-tearing mechanism, a film-clamping mechanism, and a horizontal film-tearing mechanism, wherein the film-adhesive mechanism includes an adhesive roller frame, an adhesive roller disposed on the adhesive roller frame, and an adhesive roller driving mechanism; the lifting film-tearing mechanism includes a longitudinally arranged linear motor module for driving the adhesive roller frame to move longitudinally up and down; and the horizontal film-tearing mechanism includes a transversely arranged linear motor module for driving the clamping roller frame to move horizontally, characterized in that: The film clamping mechanism includes a clamping roller frame, a pair of film clamping rollers on each side of the clamping roller frame, and corresponding film clamping roller clamping drive mechanism and film clamping roller braking mechanism. The film clamping roller clamping drive mechanism drives the two film clamping rollers to clamp or release. When the two film clamping rollers are clamped, the film clamping rollers can still rotate freely. When the film clamping roller braking mechanism brakes the film clamping rollers, the film clamping rollers cannot rotate and can clamp the film.

2. The film-tearing device according to claim 1, characterized in that: The film-tearing device consists of two sets, positioned opposite each other above and below the sheet material conveying roller track.

3. A film-tearing device according to claim 1 or 2, characterized in that: The clamping roller frame is also provided with a swing arm mechanism on each side for knocking off the film, including a swing arm located inside the end of the clamping roller and a swing arm rotation drive motor located on one side of the clamping roller and connected to the swing arm.

4. A film-tearing device according to claim 1 or 2, characterized in that: The sticking roller includes several segments spaced apart on the rotating shaft, and the sticking roller drive mechanism includes a sticking roller drive motor and a transmission belt connecting the sticking roller drive motor and the rotating shaft.

5. A film-tearing device according to claim 1 or 2, characterized in that: The clamping roller drive mechanism includes a double-rod cylinder.

6. A film-tearing device according to claim 1 or 2, characterized in that: The diaphragm roller braking mechanism includes electromagnetic brakes disposed on each diaphragm roller.

7. A film-tearing device according to claim 1 or 2, characterized in that: The membrane clamping mechanism also includes a sensor for detecting whether a membrane passes through the membrane clamping rollers.

8. The film-tearing method of the film-tearing device according to claim 1, characterized in that, Includes the following steps: A. The lifting and tearing film mechanism drives the adhesive roller to rise and fall to the surface of the board and contact the film. Then, the adhesive roller driving mechanism drives the adhesive roller to rotate so that it sticks to the film and tears one end of the film. B. The lifting and tearing film mechanism drives the adhesive roller to move away from the board in the opposite direction and make the film pass through the clamping rollers. When it is detected that the film has passed through the clamping rollers, the clamping roller clamping drive mechanism is controlled to drive the clamping rollers to move relative to each other to clamp the film in the center. At this time, the clamping rollers can rotate freely so that the film can continue to pass through. C. When the adhesive roller is raised and lowered until the film is completely torn off the board, the film clamping roller braking mechanism brakes the film clamping roller, and the horizontal film tearing mechanism drives the film clamping roller to move horizontally to tear off the film on the adhesive roller.

9. The film-peeling method according to claim 8, characterized in that: The clamping roller frame is also provided with a swing arm mechanism on each side for knocking off the film, including a swing arm located inside the end of the clamping roller and a swing arm rotation drive motor located on one side of the clamping roller and connected to the swing arm; it also includes step D. driving the swing arm to rotate by the swing arm rotation drive motor to knock off the film that has been torn off but is still on the clamping roller.

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