CN108705571B - Cutting equipment and gear adjusting method thereof - Google Patents
Cutting equipment and gear adjusting method thereof Download PDFInfo
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- CN108705571B CN108705571B CN201810455776.0A CN201810455776A CN108705571B CN 108705571 B CN108705571 B CN 108705571B CN 201810455776 A CN201810455776 A CN 201810455776A CN 108705571 B CN108705571 B CN 108705571B
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- Prior art keywords
- gear
- carrier tape
- chip
- film carrier
- opening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
- B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
- B26D1/065—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates for thin material, e.g. for sheets, strips or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/08—Means for treating work or cutting member to facilitate cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/08—Means for treating work or cutting member to facilitate cutting
- B26D2007/082—Guiding or pushing a web into a favorable position by deflector means
Abstract
The application discloses cutting equipment, cutting equipment includes: the device comprises a bearing platform, a gear assembly and a cutting mechanism, wherein the bearing platform is provided with a strip-shaped first opening, and the length direction of the first opening is the preset moving direction of a chip on film carrier tape; the gear assembly comprises at least one first gear, and positioning teeth of the first gear penetrate through the first opening and are matched with a positioning mechanism of the chip on film carrier tape; the cutting mechanism is used for cutting the chip on film carrier tape. The application also discloses a gear adjusting method of the cutting equipment. Through the mode, the cutting precision of the cutting equipment to the chip on film carrier tape can be improved.
Description
Technical Field
The application relates to the field of cutting, in particular to cutting equipment and a gear adjusting method of the cutting equipment.
Background
At present, the market demand for the full-face screen is increasing, and in order to improve the screen occupation ratio of the full-face screen, the outer pins of the display panel need to be reduced as much as possible. A Chip On Flex (COF) is an integrated circuit packaging technology, which uses a flexible printed circuit (flexible printed circuit) as a carrier for packaging a Chip, and bonds (Bonding) a Gold Bump (Gold Bump) On the Chip and an Inner Lead (Inner Lead) On the flexible printed circuit by thermocompression Bonding. The packaging mode of the chip on film is to bend the integrated circuit and other parts under the screen to the back of the screen by adopting a flexible technology, thereby effectively reducing the front area of the display panel.
With the popularization of the flip chip, the precision requirement of the cutting equipment in cutting the flip chip is higher and higher, and the cutting precision of the traditional cutting equipment is unstable.
Disclosure of Invention
The technical problem mainly solved by the application is to provide the cutting equipment and the gear adjusting method of the cutting equipment, and the cutting precision of the cutting equipment to the chip on film carrier tape can be improved.
In order to solve the technical problem, the application adopts a technical scheme that: the utility model provides a cutting equipment for cutting the cover brilliant film carrier band, cover brilliant film carrier band includes the area body, sets up the circuit on the area body and is located the positioning mechanism of circuit both sides, and this cutting equipment includes: the chip-on-film cutting device comprises a bearing platform, a gear assembly and a cutting mechanism, wherein a first surface of the bearing platform is used for placing a chip-on-film carrier tape, the bearing platform is provided with a strip-shaped first opening, and the length direction of the first opening is the preset moving direction of the chip-on-film carrier tape; the gear assembly is used for driving the chip on film carrier tape to move on the bearing platform, wherein the gear assembly comprises at least one first gear, the at least one first gear is arranged on a second surface of the bearing platform, which is opposite to the first surface, and positioning teeth of the first gear penetrate through the first opening and are matched with a positioning mechanism of the chip on film carrier tape; the cutting mechanism is used for cutting the chip on film carrier tape.
In order to solve the above technical problem, another technical solution adopted by the present application is: the cutting equipment is used for cutting the chip on film carrier tape and comprises a bearing platform, a gear assembly and a cutting mechanism, wherein the gear assembly comprises at least one size of gear, and the bearing platform is provided with at least one opening; the opening is in a strip shape, and the length direction of the opening is the preset moving direction of the crystal film carrier tape; the positioning teeth of the gears with various sizes penetrate through the openings of corresponding types to drive the chip on film carrier tape to move, and the method comprises the following steps: determining the deviant of the chip on film carrier tape on the bearing table in the preset moving direction; judging whether the offset value is within a preset offset value range or not; and if the deviation value is not within the preset deviation value range, adjusting the position of the gear.
The beneficial effect of this application is: different from the prior art, because this application plummer is equipped with the opening of rectangular shape, this open-ended length direction is the predetermineeing moving direction of cover brilliant film carrier band, consequently, when the gear assembly drives cover brilliant film carrier band and moves on the plummer, can make the location tooth of gear assembly spacing in the opening, be about to the removal of location tooth inject on the predetermineeing moving direction of cover brilliant film carrier band or should predetermine moving direction skew less, so improved the cutting precision of cutting equipment to cover brilliant film carrier band.
In addition, the offset value of the chip on film carrier tape in the preset moving direction can be obtained when the gear assembly drives the chip on film carrier tape, and the position of the positioning teeth of the gear assembly is adjusted according to the offset value, so that the cutting precision of the cutting equipment in the process of cutting the chip on film is further improved.
Drawings
Fig. 1 is a top view of a dicing apparatus according to an embodiment of the present application without a flip-chip film carrier tape;
fig. 2 is a top view of the dicing apparatus according to the embodiment of the present application, on which a chip on film carrier tape is placed;
FIG. 3 is a front view of the dicing apparatus according to the embodiment of the present application when the COF carrier tape is not diced;
fig. 4 is a front view of a dicing apparatus according to an embodiment of the present application when dicing a chip on film carrier tape;
fig. 5 is a schematic flow chart of a gear adjusting method of a cutting apparatus according to an embodiment of the present application.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first", "second", etc. in this application are used to distinguish between different objects and not to describe a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1 to 4, fig. 1 is a top view of a dicing apparatus according to an embodiment of the present invention without a flip chip carrier tape, fig. 2 is a top view of a dicing apparatus according to an embodiment of the present invention with a flip chip carrier tape, fig. 3 is a front view of a dicing apparatus according to an embodiment of the present invention without a flip chip carrier tape, and fig. 4 is a front view of a dicing apparatus according to an embodiment of the present invention with a flip chip carrier tape.
The dicing apparatus 10 is used for dicing the chip on film carrier tape 20, and the chip on film carrier tape 20 includes a tape body 21, a circuit 22 disposed on the tape body 21, and a positioning mechanism 23 disposed on two sides of the circuit 22.
The COF carrier tape 20 is provided with circuits 22 of uniform size at intervals, and the dicing apparatus 10 cuts the COF carrier tape 20 so that the circuits 22 are separated from the COF carrier tape 20. The circuit 22 may be a chip block formed in a package form, and the chip block is uniformly distributed on the chip on film carrier tape 20. The dicing device 10 may be used to dice the flip chip carrier tape 20 by cutting the circuit 22 on the flip chip carrier tape 20.
Alternatively, the positioning mechanism 23 may be a positioning hole or a positioning slot, and the positioning mechanisms 23 may be uniformly arranged on both sides of the circuit 22. In the present embodiment, the positioning mechanism 23 is a positioning hole. Alternatively, the distance between every two adjacent positioning holes in each side positioning mechanism 23 is smaller than the distance between every two adjacent circuits 22.
The cutting apparatus 10 comprises a carrier table 11, a gear assembly 12 and a cutting mechanism 13.
The first surface of the carrier stage 11 is used for placing the chip on film carrier tape 20, the carrier stage 11 is provided with a strip-shaped first opening 111, wherein the length direction of the first opening 111 is the preset moving direction of the chip on film carrier tape 20. In this embodiment, the predetermined moving direction may be a moving direction of the flip chip film when the flip chip film carrier tape 20 is not deviated during the dicing process. The preset moving direction is an ideal direction, and in the actual cutting process, due to vibration or errors of gear installation, the carrier tape 20 will shift during the cutting process, so that the cut portion of the carrier tape 20 has accuracy errors, for example, the complete circuit 22 cannot be cut. Therefore, during the dicing process, the moving direction of the carrier tape 20 should be as close as possible to the preset moving direction, so as to improve the dicing precision of the dicing apparatus 10 during the dicing of the carrier tape 20.
Since the first openings can be used for limiting gears in the gear assembly, in order to improve the limiting effect, the first openings 111 can be divided into two groups according to the arrangement positions, and the two groups of first openings 111 are respectively arranged corresponding to the positioning mechanisms 23 on both sides of the circuit 22 of the chip on film carrier tape 20, i.e. one group of first openings 112 is arranged corresponding to the positioning mechanism 23 on one side of the circuit 22, and the other group of first openings 112 is arranged corresponding to the positioning mechanism 23 on the other side of the circuit 22. Specifically, each first opening 11 may have a length that is greater than the length of one or more positioning mechanisms 23. The distance between the two sets of first openings 111 may be the same as the distance between the positioning mechanisms 23 on the two sides of the circuit 22 on the chip on film carrier tape 20. It will be appreciated that in other embodiments, only one set of first openings may be provided.
The gear assembly 12 is used for driving the chip on film carrier tape 20 to move on the carrier stage 11, wherein the gear assembly 12 may include at least one first gear 121, the at least one first gear 121 is disposed on a second surface of the carrier stage 11 opposite to the first surface, and the positioning teeth of the first gear 121 pass through the first opening 111 and are matched with the positioning mechanism 23 of the chip on film carrier tape 20. In this embodiment, the gear assembly 12 may include two first gears 121, the two first gears 121 are disposed corresponding to the two sets of first openings 111, and at least one positioning tooth of the two first gears 121 passes through the corresponding first opening 111 and is matched with the positioning mechanism 23 of the carrier tape 20. The fit may be a complementary shape between the positioning teeth and the positioning means 23. Alternatively, the pitch of the first gear 121 may be the same as the pitch of any two adjacent positioning holes of the chip on film carrier tape 20, so that when the gear assembly 12 rotates, the positioning teeth of each first gear 121 may cooperate with the positioning mechanism 23 to pull the chip on film carrier tape 20 to move. In other embodiments, the gear assembly 12 may include a plurality of first gears 121, as long as the positioning teeth of the first gears 121 can be matched with the positioning mechanism 23 of the chip on film carrier tape 20 through the first openings 111, which is not limited in the present application.
Further, the rigidity of the carrier tape 20 may not be high, so that errors may occur in the cut carrier tape 20 due to unevenness of the carrier tape during cutting. Therefore, in order to ensure the flatness of the chip on film carrier tape 20 during dicing and further improve the dicing precision, the dicing apparatus 10 may further include other types of gears and corresponding openings.
Specifically, the carrier 11 may further have a second elongated opening 112, and the second elongated opening 112 and the first elongated opening 111 have the same length direction. That is, the first opening 111 and the second opening 112 are parallel. It should be noted that the distance between the first opening 111 and the second opening 112 should be at least larger than the distance between two adjacent circuits 22.
The gear assembly 12 may further include at least one second gear 122, the at least one second gear 122 is disposed on the first surface of the carrier 11, the second gear 122 and the first gear 121 are respectively disposed on opposite sides of the carrier tape 20, and the positioning teeth of the second gear 122 are engaged with the positioning mechanism 23 of the carrier tape 20 and partially penetrate into the second opening 112. Alternatively, the pitch of the second gear 122 may also be the same as the pitch of any two adjacent positioning holes of the chip on film carrier tape 20, so that when the gear assembly 12 rotates, the positioning teeth of the second gear 122 may cooperate with the positioning mechanism 23 to pull the chip on film carrier tape 20 to move. Likewise, in other embodiments, the gear assembly 12 may also include a plurality of second gears 122. Since the first gear 121 and the second gear 122 are respectively disposed on two sides of the COF carrier tape, when the first gear 121 and the second gear 122 are in operation, the COF carrier tape 20 therebetween can be tensioned, so as to improve the flatness of the COF carrier tape 20 and further improve the cutting accuracy.
Similar to the first gear 121, in the embodiment, the number of the second gears 122 may also be two, the two second gears 122 are disposed corresponding to the two sets of the second openings 112, and the positioning teeth of the two second gears 122 may be matched with the positioning mechanism 23 of the chip on film carrier tape 20 and penetrate into the second openings 112 corresponding to the second gears 122. Correspondingly, the second openings 112 may also be divided into two groups according to the arrangement positions, and the two groups of second openings 112 are respectively arranged corresponding to the positioning mechanisms 23 on the two sides of the circuit 22 of the chip on film carrier tape 20. Similarly, the distance between the two sets of second openings 112 may be the same as the distance between the positioning mechanisms 23 on both sides of the circuit 22 on the chip on film carrier tape 20.
It will be appreciated that the sizes of the first gear 121 and the second gear 122 may be the same or different, and accordingly, the lengths of the openings of the two gears may be the same or different. For example, the first gear 121 and the second gear 122 have different sizes, the first opening 111 and the second opening 112 have different lengths, and the length relationship between the first opening 111 and the second opening 112 may be positively correlated to the size relationship between the first gear 121 and the second gear 122. In the present embodiment, the size of the first gear 121 may be larger than that of the second gear 122, and the length of the first opening 111 may be larger than that of the second opening 112. In other embodiments, the size of the first gear 121 may be smaller than or equal to the size of the second gear 122, and the length of the first opening 111 may also be smaller than or equal to the length of the second opening 112.
During operation of the cutting device 10, the first gear 121 rotates at a first angular speed and the second gear 122 rotates at a second angular speed, the first and second angular speeds being of the same magnitude and opposite directions. For example, in one embodiment, the first gear 121 may rotate clockwise and the second gear 122 may rotate counterclockwise. In another embodiment, the first gear 121 may rotate counterclockwise and the second gear 122 may rotate clockwise.
Alternatively, the first gear 121 and the second gear 122 may be spur gears, helical gears, herringbone gears, curved gears, ratchet gears, or the like. In the present embodiment, the first gear 121 and the second gear 122 are both ratchet gears. In other embodiments, the first gear 121 and the second gear 122 may be other gears, and the present application is not limited thereto.
The cutting mechanism 13 may include a lower punch tip 131, and the lower punch tip 131 is used to cut the flip chip film while being pressed down.
Optionally, the cutting mechanism 13 further includes a cutting die 132 and a pressing shaft 133, and the pressing shaft 133 is fixedly connected to the lower punch head 131 for cutting the flip chip film carrier tape 20 when pressing down.
Optionally, the dicing apparatus 10 may further include a light sensor (not shown), the light sensor may be disposed corresponding to the carrier tape 20 and disposed on the dicing mechanism 13, and the light sensor is configured to detect whether the circuit 22 moves to a position corresponding to the dicing mechanism 13, so that the dicing head may dice the carrier tape 20 when the light sensor detects that the circuit 22 moves to the position corresponding to the dicing mechanism 13.
In this embodiment, since the carrier 11 is provided with the elongated opening, and the length direction of the elongated opening is the preset moving direction of the carrier tape 20, when the gear assembly 12 drives the carrier tape 20 to move on the carrier 11, the positioning teeth of the gear assembly 12 can be limited in the opening, that is, the movement of the positioning teeth is limited in the preset moving direction of the carrier tape 20 or the deviation from the preset moving direction is less, so that the cutting precision of the cutting device 10 on the carrier tape 20 is improved.
Optionally, the dicing apparatus 10 may further include an adjusting mechanism 14 connected to each gear of the gear assembly 12, and the adjusting mechanism 14 may be configured to adjust the position of the positioning teeth of the gear assembly 12 according to the offset value of the carrier tape 20 on the carrier stage 11 in the preset moving direction.
Specifically, the operator or the adjusting mechanism 14 is configured to obtain a first offset value of the positioning teeth of the gear in the preset moving direction when the gear rotates for one circle, calculate a second offset value of the gear after multiple rotations according to the first offset value, and adjust the position of the positioning teeth of the gear assembly when the second offset value is not within the preset offset value range.
With reference to fig. 3 and 4, in another embodiment, the second gear 122 is movably disposed to facilitate mounting the chip on film carrier tape 20. For example, when the carrier tape 20 is required to be mounted, the operator manually or automatically moves the second gear 122 by the adjusting mechanism 14 to a set distance away from the carrier stage 11 to provide a larger space for mounting the carrier tape 20, and after the carrier tape 20 is mounted, the operator manually or automatically moves the second gear 122 by the adjusting mechanism 14 to a direction close to the carrier stage 11, so that the second gear 122 can be engaged with the positioning mechanism 23 of the carrier tape 20 and enter the second opening 112. Specifically, the movement may be divided into two stages, and when the dicing apparatus 10 is not diced during the movement of the carrier tape 20, the distance between the second gear 122 and the carrier tape 20 may be a first distance, and at this time, both the first gear 121 and the second gear 122 can cooperate with the carrier tape 20 to move the carrier tape 20; and when the dicing device 10 performs dicing, the second gear 122 moves towards the direction close to the chip on film carrier tape 20 to compress the chip on film carrier tape 20, so as to improve the flatness of the chip on film carrier tape 20, and the distance between the moved second gear 122 and the chip on film carrier tape 20 is a second distance. It should be noted that in this embodiment, the difference between the first distance and the second distance should be less than the full tooth height of the second gear 122, which is the radial distance between the addendum circle and the dedendum circle.
Through the arrangement of the first opening 111 and the second opening 112 in the embodiment of the present application, and the length direction of the first opening 111 and the length direction of the second opening 112 are both the same as the preset moving direction of the chip on film carrier tape 20, the first gear 121 partially passes through the first opening 111 and cooperates with the positioning mechanism 23 of the chip on film carrier tape 20, the second gear 122 cooperates with the positioning mechanism 23 of the chip on film carrier tape 20 and partially passes through the second opening 112, the operator or the adjustment mechanism 14 can thus pass through the first opening 111 and the second opening 112, corresponding to the alignment of the parallelism between the first gear 121 and the second gear 122 and the above-mentioned preset moving direction, that is, the first gear 121 and the second gear 122 can be parallel to the length direction of the first opening 111 or the length direction of the second opening 112 as much as possible, thereby enabling the COF carrier tape 20 to move along the preset moving direction as much as possible, and further improving the cutting precision. Specifically, in one embodiment, the first gear 121 and the second gear 122 can be parallel to the longitudinal direction of the corresponding opening as much as possible by measuring the distance between the positioning tooth of the first gear 121 in the first opening 111 and the first opening 111 in the width direction and the distance between the positioning tooth of the second opening 112 and the second opening 112 in the width direction by a vernier caliper or a pressure gauge so that the first gear 121 and the second gear 122 are parallel to the first opening 111 or the second opening 112 as much as possible.
In addition, the operator or the adjusting mechanism 14 may obtain the deviation value of the chip on film carrier tape 20 in the preset moving direction when the first gear 121 or the second gear 122 rotates for one circle, and further obtain the number of circles that the first gear 121 or the second gear 122 can rotate according to the obtained deviation value and the maximum deviation value of the chip on film carrier tape 20 in the preset moving direction, so as to ensure that the deviation value of the chip on film carrier tape 20 is within the preset range. For example, the maximum allowable deviation value of the COF carrier tape 20 in the preset moving direction is 50 μm, that is, when the maximum deviation value of the COF carrier tape 20 in the preset moving direction exceeds 50 μm, the cutting precision can not meet the requirement, and the offset value of the COF carrier tape 20 in the predetermined moving direction is 1 μm when the first gear 121 or the second gear 122 rotates one revolution, therefore, after the first gear 121 or the second gear 122 rotates for 50 cycles, the offset value of the COF carrier tape 20 in the preset moving direction is the largest, at this time, it is necessary to readjust the positional relationship between the first gear 121 and the second gear 122, so that the first gear 121 and the second gear 122 are parallel to the first opening 111 or the second opening 112, and continuously obtaining the deviation value of the chip on film carrier tape 20 in the preset moving direction when the first gear 121 or the second gear 122 rotates for one circle, so that the cutting precision can meet the requirement. In other embodiments, the operator or the adjusting mechanism 14 may further obtain an offset value of the flip-chip carrier tape 20 in the preset moving direction when the first gear 121 or the second gear 122 rotates for multiple revolutions, so as to obtain a unit offset value of the flip-chip carrier tape 20 in the preset moving direction when the first gear 121 or the second gear 122 rotates for one revolution. The unit offset value acquired in this way can be made more accurate.
Alternatively, the cutting apparatus 10 may also be adjusted for the gears of the cutting apparatus 10 by the following method.
Referring to fig. 5, fig. 5 is a schematic flow chart illustrating a gear adjusting method of a cutting apparatus according to an embodiment of the present application.
The cutting equipment is used for cutting the chip on film carrier tape and comprises a bearing table, a gear assembly and a cutting mechanism, wherein the gear assembly comprises at least one size of gear, and the bearing table is provided with at least one opening; the opening is in a strip shape, and the length direction of the opening is the preset moving direction of the chip on film carrier tape; the positioning teeth of the gears with each size penetrate through the corresponding type of openings to drive the chip on film carrier tape to move.
Optionally, the cutting device may be the device according to any of the above embodiments, for example, the gear assembly may include a first gear and a second gear, the first gear and the second gear may be similar to the first gear and the second gear in any of the above embodiments, and the opening may include a first opening and a second opening, the first opening and the second opening may also be similar to the first opening and the second opening in any of the above embodiments, and details thereof are not repeated here.
The gear adjusting method of the cutting equipment provided by the embodiment of the application can comprise the following steps:
s501: and determining the deviation value of the chip on film carrier tape on the bearing table in the preset moving direction.
In step S501, an operator or an adjusting mechanism may periodically measure the deviation value of the flip-chip carrier tape in the preset moving direction by using a measuring tool such as a caliper or a pressure gauge.
And/or, step S501 may further include: obtaining a unit deviation value of the chip on film carrier tape in a preset moving direction when the gear rotates for a circle; and calculating the deviation value of the COF carrier tape in the preset moving direction according to the unit deviation value and the current number of the rotation cycles of the gear. Alternatively, since the offset value caused by one rotation of the gear may be small and difficult to accurately measure, the gear may be rotated by a set number of rotations during measurement, so as to measure the offset value after the set number of rotations of the gear, and further calculate the offset value per week.
S502: and judging whether the offset value is within a preset offset value range.
The range of the preset offset value may be determined according to the cutting accuracy.
S503: and if the deviation value is not within the preset deviation value range, adjusting the position of the positioning teeth of the gear.
For example, the preset offset range is 0 to 50 μm, when the obtained gear rotates for one circle, the offset of the flip chip film carrier tape in the preset moving direction is 1 μm, and the current number of rotations is 40 weeks, the offset is 40 μm, and the gear does not need to be adjusted if the current number of rotations is within the offset range; when the current number of revolutions is 51, the offset value is 51 μm, and the gear position is not within the offset value range.
Different from the prior art, because this application plummer is equipped with the opening of rectangular shape, this open-ended length direction is the predetermineeing moving direction of cover brilliant film carrier band, consequently, when the gear assembly drives cover brilliant film carrier band and moves on the plummer, can make the location tooth of gear assembly spacing in the opening, be about to the removal of location tooth inject on the predetermineeing moving direction of cover brilliant film carrier band or should predetermine moving direction skew less, so improved the cutting precision of cutting equipment to cover brilliant film carrier band.
The above description is only for the purpose of illustrating embodiments of the present invention and is not intended to limit the scope of the present invention, and all modifications, equivalents, and equivalent structures or equivalent processes that can be used directly or indirectly in other related fields of technology shall be encompassed by the present invention.
Claims (9)
1. The utility model provides a cutting equipment for cut the cover brilliant film carrier band, cover brilliant film carrier band is including the area body, set up the circuit on the area body and be located the positioning mechanism of circuit both sides, its characterized in that, cutting equipment includes:
the chip on film carrier tape is arranged on the first surface of the bearing platform, the bearing platform is provided with a strip-shaped first opening, and the length direction of the first opening is the preset moving direction of the chip on film carrier tape;
the gear assembly is used for driving the chip on film carrier tape to move on the bearing table, wherein the gear assembly comprises at least one first gear, the at least one first gear is arranged on a second surface of the bearing table, which is opposite to the first surface, and positioning teeth of the first gear penetrate through the first opening and are matched with a positioning mechanism of the chip on film carrier tape;
the cutting mechanism is used for cutting the chip on film carrier tape;
the cutting equipment further comprises an adjusting mechanism connected with each gear in the gear assembly, and the adjusting mechanism is used for adjusting the position of the positioning teeth of the gear assembly according to the deviation value of the chip on film carrier tape on the bearing table in the preset moving direction.
2. The cutting device according to claim 1, wherein the bearing table is further provided with a second elongated opening, and the second opening has the same length direction as the first opening;
the gear assembly further comprises at least one second gear, the at least one second gear is arranged on the first surface of the bearing table, the second gear and the first gear are respectively arranged on two opposite sides of the chip on film carrier tape, and the positioning teeth of the second gear are matched with the positioning mechanism of the chip on film carrier tape and partially penetrate through the second opening.
3. The dicing apparatus according to claim 2, wherein the first openings are divided into two groups according to arrangement positions, and the two groups of first openings are respectively arranged corresponding to the positioning mechanisms on both sides of the circuit of the chip on film carrier tape;
the second openings are divided into two groups according to the arrangement positions, and the two groups of second openings are respectively arranged corresponding to the positioning mechanisms on the two sides of the circuit of the chip on film carrier tape.
4. The cutting apparatus of claim 2, wherein the first gear and the second gear are different sizes, and a length relationship between the first opening and the second opening is positively related to a size relationship between the first gear and the second gear.
5. The cutting apparatus of claim 2, wherein the first gear rotates at a first angular velocity and the second gear rotates at a second angular velocity, the first and second angular velocities being of equal magnitude and opposite directions.
6. The dicing apparatus according to claim 1, wherein the adjusting mechanism is further configured to obtain a first offset value of the chip on film carrier tape in the preset moving direction when the gear rotates for one cycle, calculate a second offset value after the gear rotates for multiple cycles according to the first offset value, and adjust the position of the positioning teeth of the gear when the second offset value is not within a range of the preset offset value.
7. The cutting apparatus of claim 1, wherein the positioning mechanism is a positioning hole or a positioning slot; the cutting mechanism comprises a lower punch head, and the lower punch head is used for cutting the chip on film carrier tape when being pressed downwards.
8. The gear adjusting method of the cutting equipment is characterized in that the cutting equipment is used for cutting a chip on film carrier tape and comprises a bearing platform, a gear assembly and a cutting mechanism, wherein the gear assembly comprises at least one size of gear, and the bearing platform is provided with at least one opening; the opening is in a strip shape, and the length direction of the opening is the preset moving direction of the chip on film carrier tape; the positioning teeth of the gear with each size penetrate through the corresponding type of the opening to drive the chip on film carrier tape to move, and the method comprises the following steps:
determining the deviant of the chip on film carrier tape on the bearing table in the preset moving direction;
judging whether the deviation value is within a preset deviation value range or not;
and if the deviation value is not in the preset deviation value range, adjusting the position of the gear.
9. The method of claim 8, wherein the determining the offset value of the COF carrier tape on the carrier stage in a predetermined moving direction comprises:
obtaining a unit deviation value of the chip on film carrier tape in the preset moving direction when the gear rotates for one circle;
and calculating the deviation value of the chip on film carrier tape in the preset moving direction according to the unit deviation value and the current number of the rotation cycles of the gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110328693A (en) * | 2019-08-21 | 2019-10-15 | 苏州铂普乐新材料科技有限公司 | It is a kind of can one go out four carrier band improvement purl machine structures |
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| JP2012069729A (en) * | 2010-09-24 | 2012-04-05 | Brother Ind Ltd | Punching apparatus and punching method for wiring board |
| CN203197470U (en) * | 2013-05-02 | 2013-09-18 | 京东方科技集团股份有限公司 | Coiling-type chip-flipped film cutting device |
| CN107322685A (en) * | 2017-07-04 | 2017-11-07 | 深圳市联得自动化装备股份有限公司 | Chip on film automatic cutting equipment |
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