A material tape metering device for roll-to-roll equipment of chip-on-film

Abstract

The present invention discloses a material strip metering device for a roll-to-roll device for chip-on-film, which relates to the field of chip-on-film roll metering, and includes a frame and a motor, wherein a motor is fixed inside the frame, and a tensioning mechanism is also fixed symmetrically on the frame, and a glass tabletop is fixed on the front end face of the frame, and a fixing frame fixed on the frame is arranged above the glass tabletop, and a metal sensor is fixed at the middle position of the lower end face of the fixing frame. The material strip metering device for the roll-to-roll device for chip-on-film can detect the movement time of the chip-on-film through the action of the metal sensor, and can achieve a primary metering effect according to the transmission speed of the roll length of the chip-on-film = the movement time, and can be combined with a light gate counting sensor to detect the number of track holes on the side of the chip-on-film, and can achieve a secondary metering according to the length of the roll of the chip-on-film = the number of track holes and the hole spacing, and can accurately determine the length of the chip-on-film roll by corroborating the two metering data.

Description

Technical Field

[0001] The present invention relates to the technical field of metering of chip-on-film rolls, and in particular to a device for measuring the metering of a material strip of a chip-on-film roll-to-roll equipment. Background Art

[0002] Chip-on-film is a soft film assembly technology that fixes the integrated circuit (IC) on the flexible circuit board. The chip is combined with the flexible substrate circuit using a soft additional circuit board as a package chip carrier, or it refers to a soft additional circuit board without a packaged chip. The chip-on-film roll is composed of multiple separate chip-on-films. When measuring the length of the chip-on-film roll, the metal sensor is currently used to calculate the movement time of the chip-on-film roll, and the overall length is calculated in conjunction with the transmission speed of the chip-on-film roll, that is, the length of the chip-on-film roll = movement time Conveying speed. In actual use, this metering method mainly relies on friction between the conveying wheel and the chip-on-roll film to achieve transmission, which is prone to slipping, thus affecting the accuracy of counting. In addition, during the conveying process of the chip-on-roll film, when the chip-on-roll film deviates, it is impossible to detect and stop the device in time, resulting in excessive deviation of the chip-on-roll film, which will cause the chip-on-roll film roll to twist and be damaged. Therefore, in view of the above problems, a chip-on-roll film roll-to-roll equipment material belt metering device is designed to better meet the actual use needs. Summary of the invention

[0003] The object of the present invention is to provide a material strip metering device for a roll-to-roll device for chip-on-film to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a chip-on-film roll-to-roll equipment material strip metering device, comprising a frame and a motor, a motor is fixed in the frame, a tensioning mechanism is also symmetrically fixed on the frame, a glass table top is fixed on the front end face of the frame, a fixing frame fixed to the frame is arranged above the glass table top, a metal sensor is fixed at the middle position of the lower end face of the fixing frame, an adjustment mechanism is also installed on the glass table top, the adjustment mechanism comprises a top plate and a light gate type counting sensor, the top plate is symmetrically arranged above the glass table top, a light gate type counting sensor is installed on the top plate, a detection mechanism is also installed on the top plate, and the detection mechanism comprises a guide An electric pole, a second spring, a conductive seat and an indicator light, wherein the conductive pole is slidably connected to the top plate, the conductive pole and one end of the second spring are fixed to each other, the other end of the second spring is fixed to the top plate, the conductive pole contacts the conductive seat to achieve conductivity, the conductive seat is fixed on the glass table top, and the conductive seat is connected to the power supply through a wire, an indicator light is fixed to the upper end of the conductive pole, and the indicator light is electrically connected to the conductive pole, when the chip-on-chip film moves to measure meters, when the chip-on-chip film does not shift, the front and rear conductive poles are synchronously in contact with the conductive seat, so that the indicator lights up synchronously, and when the chip-on-chip film shifts, the front and rear conductive poles cannot be synchronously in contact with the conductive seat to achieve conductivity.

[0005] Preferably, a counter is installed on the frame, and an anti-slip pad is fixed symmetrically on the lower end surface of the frame, and the first guide roller and the second guide roller are connected to the bearing on the front side of the frame. At the same time, two first guide rollers and two second guide rollers are provided, and the first guide roller is in contact with the chip-on-chip film, and the second guide rollers are in contact with the back film. Through the above structure, the guiding effect of the chip-on-chip film and the back film can be realized, and the stability of the movement of the chip-on-chip film and the back film can be ensured.

[0006] Preferably, four motors are provided, and the output shafts of the motors from right to left are respectively fixed with a chip-on-film unwinding roller, a back film winding roller, a back film unwinding roller and a chip-on-film winding roller. Through the action of the motors, basic guarantees can be provided for the winding and releasing of the chip-on-film and the winding and releasing of the back film, thereby ensuring the normal operation of the device.

[0007] Preferably, the tensioning mechanism includes a tensioning roller, a mounting block, a cross bar, a fixed plate and a first spring. The tensioning roller is symmetrically distributed about the center line of the frame, and the tensioning roller is in contact with the chip-on-chip film, and the tensioning roller bearing is connected to the mounting block. Through the action of the tensioning roller, the chip-on-chip film can be guided.

[0008] Preferably, the mounting block is fixed on the cross bar, and the cross bar and the fixed plate are slidably connected, and the fixed plate is fixed on the frame, and at the same time a first spring is fixed between the cross bar and the fixed plate. When the mounting block moves, the sliding guiding action between the cross bar and the fixed plate can ensure the stability of the movement of the mounting block, and the elastic action of the first spring can provide a force for the tensioning roller, thereby providing a pulling force for the chip-on-chip film to ensure the straightness of the chip-on-chip film.

[0009] Preferably, a fill light with adjustable brightness is installed in the glass table top. Through the above structure, the fill light effect can be achieved to ensure the normal measurement of meters.

[0010] Preferably, the adjustment mechanism also includes a bidirectional threaded rod, a movable block, a connecting rod, a slider, a guide rod, a limit roller and a limit block. The bidirectional threaded rod bearing is connected to the glass table top, and the bidirectional threaded rod is connected to the movable block through a thread, and the movable block is fixed to the slider through the connecting rod. Through the action of the bidirectional threaded rod, a basic force can be provided for the movement of the movable block, the connecting rod and the slider, thereby realizing the position adjustment of the light gate counting sensor and ensuring the normal operation of the device.

[0011] Preferably, the slider is slidably connected to the guide rod, and the guide rod is fixed on the glass table top. When the slider moves, the sliding guide effect between the slider and the guide rod can ensure that the slider performs stable linear motion.

[0012] Preferably, the slider is connected to one end of the limiting roller by a bearing, and the other end of the limiting roller is connected to the top plate by a bearing, and the limiting roller is in contact with the chip-on-film, and the chip-on-film can be limited by the limiting roller.

[0013] Preferably, the limit block is fixed on the upper end surface of the top plate, and the limit block and the fixing frame are slidably connected. When the top plate moves, the stability of the top plate movement can be ensured by the sliding guiding effect between the limit block and the fixing frame.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The chip-on-roll roll-to-roll equipment tape metering device can detect the movement time of the chip-on-roll film through the metal sensor. According to the chip-on-roll film roll length = movement time The transmission speed can achieve a one-time metering effect. Combined with the optical gate counting sensor, the number of track holes on the side of the chip-on-chip film can be detected. According to the chip-on-chip film roll length = track hole number The hole spacing can be measured twice, and the length of the chip-on-film roll can be accurately determined by corroborating the two measurement data.

[0016] 2. The material tape metering device of the chip-on-roll film roll-to-roll equipment measures the length of the chip-on-roll film roll. During the conveying process of the chip-on-roll film roll, when the front and rear conductive rods pass through the track holes on the chip-on-roll film roll and contact the conductive seat synchronously, the indicator lights will light up synchronously, indicating that the chip-on-roll film roll is conveyed normally without deviation. If the chip-on-roll film roll is deflected or twisted, the front and rear conductive rods cannot contact the conductive seat synchronously to conduct electricity, so that relevant data can be fed back to the PLC controller to stop the device from running, thereby avoiding damage to the chip-on-roll film roll due to deviation or twisting;

[0017] 3. The material strip metering device of the chip-on-roll film roll-to-roll equipment can adjust the position of the limit roller, the light gate counting sensor and the detection mechanism through the action of the bidirectional threaded rod, the movable block, the connecting rod and the slider when measuring the length of the chip-on-roll film roll, so as to adapt to the measurement of chip-on-roll films of different widths and improve the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the device of the present invention from a front view;

[0019] Figure 2 It is a schematic diagram of the side cross-sectional three-dimensional structure of the overall composition of the device of the present invention;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the tensioning mechanism of the present invention;

[0021] Figure 4 This is a schematic diagram of the front view of the three-dimensional structure of the glass tabletop and the adjustment mechanism of the present invention;

[0022] Figure 5 This is a schematic diagram of a bottom-up three-dimensional structure of a glass tabletop and an adjustment mechanism of the present invention;

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the adjusting mechanism and the detecting mechanism of the present invention.

[0024] In the figure: 1, frame; 101, counter; 102, anti-skid pad; 103, first guide roller; 104, second guide roller; 2, motor; 3, chip-on-film unwinding roller; 4, back film winding roller; 5, back film unwinding roller; 6, chip-on-film winding roller; 7, tensioning mechanism; 701, tensioning roller; 702, mounting block; 703, crossbar; 704, fixing plate; 705, first spring; 8, glass tabletop; 9, fixing frame; 90 1. Metal sensor; 10. Adjustment mechanism; 1001. Bidirectional threaded rod; 1002. Movable block; 1003. Connecting rod; 1004. Sliding block; 1005. Guide rod; 1006. Limit roller; 1007. Top plate; 1008. Limit block; 1009. Optical shutter counting sensor; 11. Detection mechanism; 1101. Conductive rod; 1102. Second spring; 1103. Conductive seat; 1104. Indicator light. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 6 The present invention provides a technical solution: a material strip metering device for a roll-to-roll device for chip-on-film, comprising a frame 1 and a motor 2, wherein the motor 2 is fixed inside the frame 1, and a tensioning mechanism 7 is symmetrically fixed to the frame 1, a glass table top 8 is fixed to the front end surface of the frame 1, a fixing frame 9 fixed to the frame 1 is arranged above the glass table top 8, a metal sensor 901 is fixed at the middle position of the lower end surface of the fixing frame 9, an adjusting mechanism 10 is also installed on the glass table top 8, the adjusting mechanism 10 comprises a top plate 1007 and a light gate type counting sensor 1009, the top plate 1007 is symmetrically arranged above the glass table top 8, the light gate type counting sensor 1009 is installed on the top plate 1007, and a detection mechanism 11 is also installed on the top plate 1007.

[0027] A counter 101 is installed on the frame 1, and an anti-skid pad 102 is fixed symmetrically on the lower end surface of the frame 1, and a first guide roller 103 and a second guide roller 104 are connected to the bearing on the front side of the frame 1. At the same time, two first guide rollers 103 and second guide rollers 104 are provided, and the first guide roller 103 contacts the chip-on-film, and the second guide rollers 104 contact the back film; four motors 2 are provided, and the output shafts of the motors 2 from right to left are respectively fixed with a chip-on-film unwinding roller 3, a back film winding roller 4, and a back film winding roller 5. Roller 4, back film unwinding roller 5 and chip-on-film winding roller 6; tensioning mechanism 7 includes tensioning roller 701, mounting block 702, cross bar 703, fixed plate 704 and first spring 705, tensioning roller 701 is symmetrically distributed about the center line of frame 1, and tensioning roller 701 is in contact with chip-on-film, and tensioning roller 701 bearing is connected to mounting block 702; mounting block 702 is fixed on cross bar 703, and cross bar 703 and fixed plate 704 are slidably connected, and fixed plate 705 is fixed to cross bar 703. 04 is fixed on the frame 1, and a first spring 705 is fixed between the cross bar 703 and the fixed plate 704; the adjustment mechanism 10 also includes a bidirectional threaded rod 1001, a movable block 1002, a connecting rod 1003, a slider 1004, a guide rod 1005, a limit roller 1006 and a limit block 1008, the bidirectional threaded rod 1001 is connected to the glass table top 8 by a bearing, and the bidirectional threaded rod 1001 is connected to the movable block 1002 by a thread, and the movable block 1002 is connected by a connecting rod. The connecting rod 1003 and the slider 1004 are fixed to each other; the slider 1004 and the guide rod 1005 are slidably connected, and the guide rod 1005 is fixed on the glass table top 8; the slider 1004 is connected to one end of the limiting roller 1006 by a bearing, and the other end of the limiting roller 1006 is connected to the top plate 1007 by a bearing, and the limiting roller 1006 is in contact with the chip-on-film; the limiting block 1008 is fixed to the upper end surface of the top plate 1007, and the limiting block 1008 is slidably connected to the fixing frame 9;

[0028] When using the roll-to-roll equipment for chip-on-film, the tape metering device Figure 1-Figure 6As shown, first, the chip-on-film unwinding roller 3, the back film winding roller 4, the back film unwinding roller 5 and the chip-on-film winding roller 6 are respectively fixed on the output shaft of the motor 2 at different positions by bolts. After the installation is completed, the chip-on-film and the back film can be moved by the driving action of the motor 2 to realize the release and winding of the chip-on-film and the back film. At this time, the chip-on-film is in contact with the first guide roller 103, the tensioning roller 701 and the conductive seat 1103, and when the chip-on-film is connected to the tensioning roller 701, by pushing the cross bar 703, the position of the tensioning roller 701 can be adjusted by cooperating with the sliding action between the cross bar 703 and the fixed plate 704, so that the first spring 705 is in a contracted state. After the chip-on-film is connected to the tensioning roller 701, the elastic action of the first spring 705 can provide tension for the tensioning roller 701, and the tension of the left and right tensioning rollers 701 can realize the chip-on-film. After the film is straightened, the bidirectional threaded rod 1001 is rotated to cooperate with the threaded connection between the bidirectional threaded rod 1001 and the movable block 1002, so that the movable block 1002 is forced to move, thereby synchronously driving the connecting rod 1003, the slider 1004, the limit roller 1006, the top plate 1007 and the light gate type counting sensor 1009 to move, and the sliding guide effect between the slider 1004 and the guide rod 1005 and the sliding guide effect between the limit block 1008 and the fixed frame 9 can ensure the stability of the movement of the connecting rod 1003, the slider 1004, the limit roller 1006, the top plate 1007 and the light gate type counting sensor 1009 until the limit roller 1006 contacts the edge of the chip-on-chip film roll. At this time, the light gate type counting sensor 1009 is just above the track hole of the chip-on-chip film roll, providing a basic guarantee for subsequent measurement and detection;

[0029] The detection mechanism 11 includes a conductive rod 1101, a second spring 1102, a conductive seat 1103 and an indicator light 1104. The conductive rod 1101 is slidably connected to the top plate 1007. The conductive rod 1101 and one end of the second spring 1102 are fixed to each other. The other end of the second spring 1102 is fixed to the top plate 1007. The conductive rod 1101 is in contact with the conductive seat 1103 to achieve conductivity. The conductive seat 1103 is fixed on the glass table top 8, and the conductive seat 1103 is connected to the power supply through a wire. An indicator light 1104 is fixed on the upper end of the conductive rod 1101, and the indicator light 1104 is electrically connected to the conductive rod 1101. When the chip-on-film moves to measure meters, when the chip-on-film does not deviate, the front and rear conductive rods 1101 are in synchronous contact with the conductive seat 1103, so that the indicator light 1104 lights up synchronously. When the chip-on-film deviates, the front and rear conductive rods 1101 cannot be in synchronous contact with the conductive seat 1103 to achieve conduction. A fill light with adjustable brightness is installed in the glass table top 8.

[0030] After the device is adjusted, when measuring, if Figure 1-Figure 6As shown, the brightness of the fill light in the glass table top 8 is adjusted according to actual needs to ensure the normal progress of subsequent detection, and then the motor 2 drives the chip-on-film unwinding roller 3 and the chip-on-film winding roller 6 to rotate, so that the chip-on-film moves orderly from left to right. When the chip-on-film moves, the metal on the chip-on-film can be detected by the metal sensor 901, so that the moving time of the chip-on-film can be determined, and the chip-on-film roll length = moving time The transmission speed can realize the one-time measurement of the length of the chip-on-film roll, and with the optical gate counting sensor 1009, the number of track holes on the chip-on-film roll can be detected. According to the chip-on-film roll length = track hole number The hole spacing can realize the secondary measurement of the length of the chip-on-film roll. The length of the chip-on-film roll can be accurately determined by corroborating the detection data on both sides. When there is a difference between the two detection data, the detection data of the light gate counting sensor 1009 shall prevail. When the position of the top plate 1007 is adjusted, the position of the detection mechanism 11 can be synchronously adjusted so that the conductive rod 1101 is matched with the position of the track hole on the chip-on-film roll. When the chip-on-film roll moves, when the conductive rod 1101 contacts the chip-on-film roll, since the chip-on-film roll itself is not conductive (the chip-on-film mainly relies on the internal circuit for conductivity), the conductive rod 1101 and the conductive seat 1103 are in a separated state. When the chip-on-film roll moves so that the track hole is matched with the conductive rod 1101, the conductive rod 1101 is in a state of contact with the conductive seat 1103. 101 penetrates the track hole on the chip-on-film roll and contacts the conductive seat 1103 to form current reflux, which makes the indicator light 1104 light up. Since the front and rear positions of the track holes on the chip-on-film roll correspond one to one, during the movement of the chip-on-film roll, when the front and rear two conductive rods 1101 are synchronously contacted with the conductive seat 1103 to achieve conductivity, it means that the chip-on-film roll is in a normal moving state. When only one of the front and rear two conductive rods 1101 is in contact with the conductive seat 1103 to achieve conductivity, it means that the chip-on-film roll is offset. At this time, the detection data is fed back to the PLC controller, causing the motor 2 to stop running, and then stopping the device to allow the staff to perform maintenance. This is the working principle of the material tape metering device of the chip-on-roll equipment.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A material strip metering device for a roll-to-roll device for chip-on-film, comprising a frame (1) and a motor (2), wherein the motor (2) is fixed inside the frame (1), and characterized in that: A tensioning mechanism (7) is also fixed symmetrically on the frame (1). A glass tabletop (8) is fixed on the front face of the frame (1). A fixing frame (9) fixed on the frame (1) is arranged above the glass tabletop (8). A metal sensor (901) is fixed at the middle position of the lower end face of the fixing frame (9). An adjustment mechanism (10) is also installed on the glass tabletop (8). The adjustment mechanism (10) comprises a top plate (1007) and a light gate type counting sensor (1009). The top plate (1007) is symmetrically arranged above the glass tabletop (8). The light gate type counting sensor (1009) is installed on the top plate (1007). A detection mechanism (11) is also installed on the top plate (1007). The detection mechanism (11) comprises a conductive rod (1101), a second spring (1102), a conductive seat (1103) and an indicator light (1104). The conductive rod (1101) is slidably connected to the conductive rod (1101). On the top plate (1007), the conductive rod (1101) and one end of the second spring (1102) are fixed to each other, and the other end of the second spring (1102) is fixed to the top plate (1007). The conductive rod (1101) contacts the conductive seat (1103) to achieve a conductive effect, and the conductive seat (1103) is fixed on the glass table top (8), and the conductive seat (1103) is connected to a power source through a wire. An indicator light (1104) is fixed to the upper end of the conductive rod (1101), and the indicator light (1104) and the conductive rod (1101) are electrically connected. When the chip-on-chip film moves to measure meters, when the chip-on-chip film does not deviate, the front and rear conductive rods (1101) synchronously contact the conductive seat (1103), so that the indicator light (1104) lights up synchronously. When the chip-on-chip film deviates, the front and rear conductive rods (1101) cannot synchronously contact the conductive seat (1103) to achieve conductivity.

2. The material strip metering device of the Chip on Film roll-to-roll equipment according to claim 1, characterized in that: The frame (1) is provided with a counter (101), and a non-slip pad (102) is fixed symmetrically to the lower end surface of the frame (1), and a first guide roller (103) and a second guide roller (104) are connected to a bearing on the front side of the frame (1), and two first guide rollers (103) and two second guide rollers (104) are provided, the first guide rollers (103) are in contact with the chip-on-film, and the second guide rollers (104) are in contact with the back film.

3. The material strip metering device of the Chip on Film roll-to-roll equipment according to claim 1, characterized in that: The motors (2) are provided in four numbers, and the output shafts of the motors (2) from right to left are respectively fixed with a chip-on-film unwinding roller (3), a back film winding roller (4), a back film unwinding roller (5) and a chip-on-film winding roller (6).

4. The material strip metering device of the Chip on Film roll-to-roll equipment according to claim 1, characterized in that: The tensioning mechanism (7) comprises a tensioning roller (701), a mounting block (702), a crossbar (703), a fixing plate (704) and a first spring (705); the tensioning roller (701) is symmetrically distributed about the center line of the frame (1); the tensioning roller (701) is in contact with the chip-on-chip film; and the bearing of the tensioning roller (701) is connected to the mounting block (702).

5. The material strip metering device of the Chip on Film roll-to-roll equipment according to claim 4, characterized in that: The mounting block (702) is fixed on the cross bar (703), and the cross bar (703) and the fixing plate (704) are slidably connected, and the fixing plate (704) is fixed on the frame (1), and a first spring (705) is fixed between the cross bar (703) and the fixing plate (704).

6. The material strip metering device of the Chip on Film roll-to-roll equipment according to claim 1, characterized in that: A fill light with adjustable brightness is installed in the glass table top (8).

7. The material strip metering device of a Chip-on-film roll-to-roll equipment according to claim 1, characterized in that: The adjustment mechanism (10) further comprises a bidirectional threaded rod (1001), a movable block (1002), a connecting rod (1003), a slider (1004), a guide rod (1005), a limiting roller (1006) and a limiting block (1008); the bidirectional threaded rod (1001) is bearing-connected to the glass table top (8); the bidirectional threaded rod (1001) is connected to the movable block (1002) via threads; and the movable block (1002) is fixed to the slider (1004) via the connecting rod (1003).

8. The material strip metering device of the Chip on Film roll-to-roll equipment according to claim 7, characterized in that: The sliding block (1004) and the guide rod (1005) are slidably connected, and the guide rod (1005) is fixed on the glass table top (8).

9. The material strip metering device of the Chip on Film roll-to-roll equipment according to claim 7, characterized in that: The slider (1004) is connected to one end of the limiting roller (1006) by a bearing, and the other end of the limiting roller (1006) is connected to the top plate (1007) by a bearing, and the limiting roller (1006) is in contact with the chip-on-film.

10. The material strip metering device of the Chip on Film roll-to-roll equipment according to claim 7, characterized in that: The limit block (1008) is fixed to the upper end surface of the top plate (1007), and the limit block (1008) and the fixing frame (9) are slidably connected.

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