Film pasting device for lead frame

Abstract

The invention relates to the technical field of lead frame film pasting, and particularly discloses a film pasting device for a lead frame, the film pasting device comprises a right-angle support plate, a lead frame conveyor, a lead frame film pasting machine, a pressing device and a cutting device, the right-angle support plate can support the whole device to operate; the lead frame conveyor is arranged in the center of the top face of the bottom of the right-angle supporting plate. The lead frame film sticking machine is arranged at the bottom of the inner side of the right-angle supporting plate, and the lead frame film sticking machine is located over the lead frame conveyor and is a certain distance away from the lead frame conveyor. The pressing device is arranged in the center of the top of the inner side of the right-angle supporting plate, and the pressing device can carry out downward pressing film pasting on the lead frame; the cutting device is connected to the outer wall of the moving end of the pressing device in a sleeving mode and can cut the lead frame laminator along the four edges of the moving end of the pressing device. The cutting universality and cutting accuracy of the lead frame after film pasting are improved, and the film pasting quality of the lead frame is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lead frame film lamination, in particular to a film lamination device for a lead frame. Background Art

[0002] At present, there are many problems in the actual application of traditional lead frame film laminating devices. On the one hand, in terms of film laminating pressure control, traditional devices use the same film laminating pressure as a whole. However, lead frames usually contain different material areas such as ceramic areas and copper areas, and the film laminating pressures required for these areas are different. Using the same pressure for film laminating will lead to poor film laminating effects in ceramic and copper areas, and problems such as loose lamination are easy to occur, which seriously affects the overall performance and product quality of the lead frame. On the other hand, in the film laminating cutting link, the existing cutting device lacks the ability to adapt to laminating heads of different sizes and has poor versatility. Moreover, during the cutting process, it is difficult to cut accurately along the edge of the laminating head, which is prone to uneven cutting and film breakage. Summary of the Invention

[0003] The object of the present invention is to provide a film laminating device for a lead frame to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a film-laminating device for a lead frame, comprising: a right-angle support plate, a lead frame conveyor, a lead frame film-laminating machine, a pressing device and a cutting device, wherein the right-angle support plate can support the operation of the entire device; the lead frame conveyor is arranged at the top center of the bottom of the right-angle support plate; the lead frame film-laminating machine is arranged at the inner bottom of the right-angle support plate, and the lead frame film-laminating machine is located directly above the lead frame conveyor and at a certain distance; the pressing device is arranged at the inner top center of the right-angle support plate, and the pressing device can press down the lead frame to apply film; the cutting device is sleeved on the outer wall of the movable end of the pressing device, and the cutting device can cut the lead frame film-laminating machine along the four sides of the movable end of the pressing device.

[0005] Preferably, in order to apply film to the lead frame, the pressing device includes: a rectangular support block, a first chamber, a support plate, a rotating column, a first drive assembly, a second drive assembly and a bonding pressure head. The rectangular support block is arranged at the inner top center of the right-angle support plate, and a first chamber is opened in the rectangular support block; the support plate is arranged at one end of the inner wall of the first chamber; the rotating column is arranged at the outer wall center of the support plate through a first bearing, and both ends of the rotating column extend outward; the first drive assembly is arranged at the right end of the rotating column; the second drive assembly is arranged at the left end of the rotating column; and the bonding pressure head is arranged at the moving end of the second drive assembly.

[0006] Preferably, in order to adjust the pressure of the fitting pressure head, the first driving assembly includes: a first gear, a support platform, a second gear, a first brake motor, a cylindrical block, a grooved plate, an L-shaped block, a large gear, a small gear, a second brake motor and a first rack, the first gear is arranged at the right end of the rotating column; the support platform is arranged at the bottom center of the right side of the outer wall of the support plate; the number of second gears is two, which are respectively arranged at the right corners at both ends of the support platform through two second bearings; the number of first brake motors is two, which are respectively arranged on the bottom surface of the right corners at both ends of the support platform, and the output ends of the two first brake motors respectively pass through the bottom of the support platform and are respectively connected and fixed to the two second gears; the cylindrical block is arranged on the support platform The right end center of the top surface; the grooved plate is arranged on the top surface of the cylindrical block; there are two L-shaped blocks, which are respectively embedded in the two ends of the grooved plate, and the two L-shaped blocks can move within the groove of the grooved plate; the large gear is arranged at the top left end of one of the L-shaped blocks through the second bearing; the small gear is arranged at the top left end of the other L-shaped block through the third bearing; there are two second brake motors, which are respectively arranged at the top right ends of the two L-shaped blocks, and the output ends of the two second brake motors are respectively connected and fixed to the right ends of the large gear and the small gear; there are two first racks, which are respectively arranged at one end of the bottom side of the two L-shaped blocks, and the two first racks are respectively engaged with the two second gears.

[0007] Preferably, one of the first brake motors rotates to drive a second gear through a first rack to limit the movement of an L-shaped block at one end in the groove of the slotted plate, so that the large gear and the first gear contact and engage with each other, and the second brake motor rotates to drive the first gear through the large gear to rotate the rotating column; another of the first brake motors rotates to drive the small gear to contact and engage with the first gear, and the rotating column rotates through another second brake motor.

[0008] Preferably, in order to drive the bonding press to bond the lead frame, the second driving assembly includes: a first connecting rod, a second connecting rod and a moving rod, the first connecting rod is arranged at the left end of the rotating column; the second connecting rod is arranged on the left side of the top end of the first connecting rod through the fourth bearing; the moving rod is arranged on the right side of the bottom end of the second connecting rod through the fifth bearing, the moving rod extends outward through the bottom surface of the outer wall of the rectangular support block, and the moving rod can be limited and moved within the bottom surface of the rectangular support block; the rotation of the rotating column drives the first connecting rod to drive the second connecting rod to move the moving rod up and down, thereby driving the bonding press to move up and down.

[0009] Preferably, in order to cut the excess film of the lead frame, the cutting device includes: a rectangular block, a second chamber, a movable groove, a third drive assembly, an electric push rod, a rectangular rod, a T-shaped groove 510, a fourth drive assembly and a fifth drive assembly, the rectangular block is sleeved on the bottom outer wall of the movable rod, a second chamber is opened in the rectangular block, and a movable groove is opened at one corner of the bottom of the front and rear ends of the rectangular block, and the two movable grooves are diagonally opposite; the third drive assembly is arranged at the bottom center of the second chamber, and the two movable ends of the third drive assembly are respectively embedded in the two movable grooves; there are two electric push rods, which are respectively arranged at the two movable ends of the third drive assembly; there are two rectangular rods, which are respectively arranged on the bottom surfaces of the two electric push rods, and a T-shaped groove is respectively opened on one side of the outer wall of the two rectangular rods; there are two groups of fourth drive assemblies, which are respectively arranged at one end in the two T-shaped grooves and are symmetrical; the fifth drive assembly is arranged at one end of the bottom surface of the rectangular block.

[0010] Preferably, in order to cooperate with the fourth component, the third drive component includes: a third gear, a second rack, a first flat brake motor and a fourth gear, the third gear is connected to the outer wall of the movable rod through a sixth bearing, and the third gear is located at the bottom center of the second chamber; there are two second racks, which are respectively arranged at the left and right ends of the third gear, and one end of the two second racks is respectively embedded in the two movable grooves; the first flat brake motor is arranged on the top surface of the second chamber near the center; the fourth gear is arranged at the output end of the first flat brake motor, and the fourth gear and the first flat brake motor are engaged with each other.

[0011] Preferably, the first flat brake motor rotates to drive the fourth gear, which causes the third gear to drive the two second racks to limit, retract and expand in the two movable grooves respectively.

[0012] Preferably, in order to cut the excess film along both sides of the laminating pressure head, the fourth driving assembly includes: a third rack, a T-shaped rod, a bearing seat, a fifth gear, a third brake motor, a connecting block and a cutter, the third rack is arranged on the bottom surface of the rectangular rod; one end of the T-shaped rod is embedded in the T-shaped groove, and the T-shaped rod can be limited and moved in the T-shaped groove; the bearing seat is arranged at one end of the T-shaped rod; the fifth gear is arranged at one end of the rotating end of the bearing seat, and the fifth gear is meshed with the third rack; the third brake motor is arranged at the other end of the rotating end of the bearing seat; the connecting block is arranged on the bottom surface of the bearing seat; the cutter is arranged at one end of the bottom surface of the connecting block; the third brake motor rotates to drive the fifth gear to move on the tooth surface of the third rack, and is limited and moved in the T-shaped groove through the T-shaped rod, thereby driving the cutter to move left and right.

[0013] Preferably, in order to cut the four sides of the excess film, the fifth drive assembly includes: a sixth gear, a right-angle plate, a second flat brake motor and a seventh gear. The sixth gear is connected to the outer wall of the moving rod through a seventh bearing, and the top surface of the sixth gear is connected and fixed to the center of the bottom surface of the rectangular block; the right-angle plate is arranged at one end of the bottom surface of the rectangular block; the second flat brake motor is arranged at the center of the top surface of the bottom of the right-angle plate; the seventh gear is arranged at the output end of the second flat brake motor, and the seventh gear and the sixth gear are engaged with each other; the second flat brake motor rotates to drive the seventh gear to rotate on the outer wall tooth surface of the sixth gear, thereby driving the rectangular block to rotate on the outer wall of the moving rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Accurately adjust the lamination pressure and improve the lamination quality: The lamination device of the present invention can control the rotation speed of the rotating column through the first drive component, and combine with the second drive component to drive the lamination pressure head to move up and down, so as to achieve precise adjustment of the lamination pressure; by replacing the ceramic area pressure head module and the copper area pressure head module, it can apply adaptive pressure to different material areas of the lead frame, effectively solving the problem of loose lamination caused by uniform pressure in traditional devices, and significantly improving the lamination quality.

[0015] 2. Improved cutting versatility and precision: The cutting mechanism, through the coordinated operation of the third, fourth, and fifth drive assemblies, cuts the excess film along the four sides of the laminating head's outer wall. This design not only adapts to laminating heads of varying sizes, providing versatility and flexibility, but also precisely cuts along the laminating head's edge, avoiding uneven cuts and film breakage, significantly improving cutting accuracy and quality.

[0016] 3. Ensure continuous operation of film laminating: During the operation of the cutting device, the cooperation of various driving components will not cause the film inside the lead frame laminating machine to break, ensuring that the film laminating process is carried out continuously and stably, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the position structure of the pressing device of the present invention; Figure 3 Schematic diagram of the internal structure of the pressing device of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the structure of the enlarged figure in FIG; Figure 5 This is a schematic diagram of the structure of the connection assembly of two L-shaped blocks of the pressing device of the present invention; Figure 6 Schematic diagram of the second driving structure of the pressing device of the present invention; Figure 7 Schematic diagram of the second drive decomposition structure of the pressing device of the present invention; Figure 8 This is a schematic diagram of the position structure of the cutting device of the present invention; Figure 9 It is a schematic structural diagram of the cutting device of the present invention; Figure 10 Schematic diagram of the rectangular block cross-sectional structure of the cutting device of the present invention; Figure 11 Schematic diagram of the internal structure of a rectangular block cross section of the cutting device of the present invention; Figure 12 For the present invention Figure 11 The enlarged diagram of the structure at B in FIG. Figure 13 This is a schematic diagram of the exploded structure of the fourth drive assembly of the cutting device of the present invention; Figure 14 This is a schematic structural diagram of the fifth drive assembly of the cutting device of the present invention.

[0018] In the figure: 1, right-angle support plate; 2, lead frame conveyor; 3, lead frame laminating machine; 4, pressing device; 5, cutting device; 41, rectangular support block; 42, first chamber; 43, support plate; 44, rotating column; 45, first gear; 46, support platform; 47, second gear; 48, first brake motor; 49, cylindrical block; 410, grooved plate; 411, L-shaped block; 412, large gear; 413, small gear; 414, second brake motor; 415, first rack; 416, first connecting rod; 417, second connecting rod; 418, shift Moving rod; 419, fitting pressure head; 51, rectangular block; 52, second chamber; 53, moving groove; 54, third gear; 55, second rack; 56, first flat brake motor; 57, fourth gear; 58, electric push rod; 59, rectangular rod; 510, T-shaped groove; 511, third rack; 512, T-shaped rod; 513, bearing seat; 514, fifth gear; 515, third brake motor; 516, connecting block; 517, cutter; 518, sixth gear; 519, right-angle plate; 520, second flat brake motor; 521, seventh gear. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1-14The present invention provides a technical solution for a film laminating device for a lead frame: comprising: a right-angle support plate 1, a lead frame conveyor 2, a lead frame laminating machine 3, a pressing device 4 and a cutting device 5. The right-angle support plate 1 can support the operation of the entire device, and the right-angle support plate 1 has a certain supporting force; the lead frame conveyor 2 is arranged at the top center of the bottom of the right-angle support plate 1, and the lead frame conveyor 2 is used to fix the lead frame and convey the lead frame; the lead frame laminating machine 3 is arranged at the inner bottom of the right-angle support plate 1, and the lead frame laminating machine 3 is located directly above the lead frame conveyor 2 and at a certain distance. 3 is used to fix the film and roll the film; the pressing device 4 is arranged at the inner top center of the right-angle support plate 1, and the pressing device 4 can press the lead frame down to apply the film, and the pressing device 4 can adjust the film application pressure of different areas of the lead frame ceramic area and copper area to improve the film application quality; the cutting device 5 is sleeved on the outer wall of the moving end of the pressing device 4, and the cutting device 5 can cut the lead frame film machine 3 along the four sides of the moving end of the pressing device 4, and the cutting device 5 can cooperate with the pressing device 4 to cut along the four sides of the laminating pressure head 419 in the pressing device 4, and improve the cutting accuracy and cutting quality.

[0021] As a preferred solution, further, Figure 2 、 Figure 3 、 Figure 4 and Figure 6 As shown, the pressing device 4 includes: a rectangular support block 41, a first chamber 42, a support plate 43, a rotating column 44, a first drive assembly, a second drive assembly and a pressing head 419. The rectangular support block 41 is arranged at the center of the inner top of the right-angle support plate 1. The first chamber 42 is opened in the rectangular support block 41. The rectangular support block 41 has a certain protective effect on the internal components and plays a certain supporting role. The support plate 43 is arranged at one end of the inner wall of the first chamber 42, and the support plate 43 has a certain supporting effect on the rotating column 44 and the left and right end connecting components; the rotating column 44 is arranged at the center of the outer wall of the support plate 43 through the first bearing, and the rotating column 44 can rotate through the first bearing, and both ends of the rotating column 44 extend outward; the first drive component is arranged at the right end of the rotating column 44; the second drive component is arranged at the left end of the rotating column 44; the fitting pressure head 419 is arranged at the movable end of the second drive component, and the fitting pressure head 419 can replace the ceramic area pressure head module and the copper area pressure head module, and the length and width of the fitting pressure head 419 are the same as the length and width of the lead frame; the fitting pressure head 419 has a certain thickness, and the thickness can better cooperate with the two cutters 517.

[0022] As a preferred solution, further, Figure 4 and Figure 5As shown, the first drive assembly includes: a first gear 45, a support platform 46, a second gear 47, a first brake motor 48, a cylindrical block 49, a grooved plate 410, an L-shaped block 411, a large gear 412, a small gear 413, a second brake motor 414 and a first rack 415. The first gear 45 is arranged at the right end of the rotating column 44; the support platform 46 is arranged at the bottom center of the right side of the outer wall of the support plate 43, and the support platform 46 plays a certain supporting role on its surface connection parts; the number of second gears 47 is two, and they are respectively arranged at the right corners of the two ends of the support platform 46 through two second bearings; the number of first brake motors 48 is two, and they are respectively arranged on the bottom surface of the right corners at both ends of the support platform 46, and the output ends of the two first brake motors 48 are They respectively pass through the bottom of the support platform 46 and are connected and fixed with the two second gears 47. The two first brake motors 48 have independent outputs, and the two first brake motors 48 have a certain self-locking ability to ensure the stable operation of the large gear 412 and the small gear 413; the cylindrical block 49 is set at the right end center of the top surface of the support platform 46. The function of the cylindrical block 49 is to make the centers of the first gear 45, the large gear 412 and the small gear 413 on the same horizontal line; the groove plate 410 is set on the top surface of the cylindrical block 49, and the groove plate 410 is used to support and limit the two L-shaped blocks 411; there are two L-shaped blocks 411, which are respectively embedded in the two ends of the groove plate 410, and the two L-shaped blocks 411 can move along the groove of the groove plate 410. The two ends of the bottom of the L-shaped block 411 have a certain friction force on both sides in contact with the groove of the groove plate 410, which plays a fixing role; the large gear 412 is set at the top left end of an L-shaped block 411 through the second bearing. The large gear 412 is larger than the first gear 45, so that when the large gear 412 drives the first gear 45 to rotate, the speed of the first gear 45 is large; the small gear 413 is set at the top left end of the other L-shaped block 411 through the third bearing. The small gear 413 is smaller than the first gear 45, so that when the small gear 413 drives the first gear 45 to rotate, the speed of the first gear 45 is low; there are two second brake motors 414, which are respectively set at the top right ends of the two L-shaped blocks 411. The output ends of the two second brake motors 414 are respectively connected and fixed to the right ends of the large gear 412 and the small gear 413, and the two second brake motors 414 have a certain self-locking ability; there are two first racks 415, which are respectively provided at one end of the bottom side of the two L-shaped blocks 411, and the two first racks 415 are respectively engaged with the two second gears 47; a first brake motor 48 rotates and drives a second gear 47 to limit the movement of one end of an L-shaped block 411 in the groove of the groove plate 410 through a first rack 415, so that the large gear 412 and the first gear 45 contact and engage with each other, and the rotation of the rotating column 44 is driven by the large gear 412 through the rotation of the second brake motor 414;Another first brake motor 48 rotates and drives the pinion 413 to contact and mesh with the first gear 45. The second brake motor 414 is then rotated to rotate the rotating column 44. The first drive assembly uses the principle of a larger gear driving a smaller gear and vice versa to control the speed of the first gear 45, thereby controlling the speed of the rotating column 44.

[0023] As a preferred solution, further, Figure 6 and Figure 7 As shown, the second driving assembly includes: a first connecting rod 416, a second connecting rod 417 and a moving rod 418, the first connecting rod 416 is arranged at the left end of the rotating column 44; the second connecting rod 417 is arranged at the left side of the top end of the first connecting rod 416 through the fourth bearing, and the second connecting rod 417 offsets the rotational force on the moving rod 418 through the fourth bearing and the fifth bearing, thereby only generating up and down thrust and pull forces on the moving rod 418; the moving rod 418 is arranged at the right side of the bottom end of the second connecting rod 417 through the fifth bearing, and the moving rod 418 extends outward through the bottom surface of the outer wall of the rectangular support block 41, and the moving rod 418 can be limited and moved within the bottom surface of the rectangular support block 41; the rotation of the rotating column 44 drives the first connecting rod 416 to drive the second connecting rod 417 to make the moving rod 418 move up and down, thereby driving the bonding press head 419 to move up and down, and the second driving assembly controls the pressure of the bonding press head 419 on the lead frame by the rotation speed of the rotating column 44.

[0024] As a preferred solution, further, Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 14As shown, the cutting device 5 includes: a rectangular block 51, a second chamber 52, a movable groove 53, a third drive assembly, an electric push rod 58, a rectangular rod 59, a T-shaped groove 510, a fourth drive assembly and a fifth drive assembly. The rectangular block 51 is sleeved on the bottom outer wall of the movable rod 418. The second chamber 52 is opened in the rectangular block 51. The bottom corners of the front and rear ends of the rectangular block 51 are each provided with a movable groove 53, and the two movable grooves 53 are diagonally opposite. The rectangular block 51 protects the internal connection components and also supports the internal connection components to a certain extent. The third drive assembly is arranged at the bottom of the second chamber 52. The center is formed by the second and third driving components, and the two moving ends of the third driving component are respectively embedded in the two moving grooves 53; there are two electric push rods 58, which are respectively provided at the two moving ends of the third driving component. The two electric push rods 58 can respectively push the two rectangular rods 59, and the two electric push rods 58 have a certain self-locking ability; there are two rectangular rods 59, which are respectively provided on the bottom surfaces of the two electric push rods 58, and a T-shaped groove 510 is respectively opened on one side of the outer wall of the two rectangular rods 59; there are two groups of fourth driving components, which are respectively provided at one end in the two T-shaped grooves 510 in a symmetrical manner; the fifth driving component is provided at one end of the bottom surface of the rectangular block 51.

[0025] As a preferred solution, further, Figure 10 and Figure 11 As shown, the third driving assembly includes: a third gear 54, a second rack 55, a first flat brake motor 56 and a fourth gear 57. The third gear 54 is connected to the outer wall of the moving rod 418 through the sixth bearing, and the third gear 54 is located at the bottom center of the second chamber 52; there are two second racks 55, which are respectively arranged at the left and right ends of the third gear 54, and one end of the two second racks 55 is respectively embedded in the two moving grooves 53; the first flat brake motor 56 is arranged on the top surface of the second chamber 52 close to the center, the first flat brake motor 56 has a certain self-locking ability, and the first flat brake motor 56 occupies a small space area; the fourth gear 57 is arranged at the output end of the first flat brake motor 56, and the fourth gear 57 is engaged with the first flat brake motor 56; the rotation of the first flat brake motor 56 drives the fourth gear 57 to make the third gear 54 drive the two second racks 55 to limit the telescopic expansion in the two moving grooves 53 respectively.

[0026] As a preferred solution, further, Figure 12 and Figure 13As shown, the fourth driving assembly includes: a third rack 511, a T-shaped rod 512, a bearing seat 513, a fifth gear 514, a third brake motor 515, a connecting block 516 and a cutter 517. The third rack 511 is arranged on the bottom surface of the rectangular rod 59; one end of the T-shaped rod 512 is embedded in the T-shaped groove 510, and the T-shaped rod 512 matches the T-shaped groove, and the T-shaped rod 512 can move within the T-shaped groove 510; the bearing seat 513 is arranged at one end of the T-shaped rod 512; the fifth gear 514 is arranged at one end of the rotating end of the bearing seat 513, and the fifth gear 514 can rotate through the bearing seat 513, and the fifth gear 514 is engaged with the third rack 511; the third brake motor 515 is arranged at the other end of the rotating end of the bearing seat 513, and the third brake motor 515 has a certain self-locking ability; the connecting block 516 is arranged on the bottom surface of the bearing seat 513, connecting Block 516 supports the cutter 517; the cutter 517 is arranged at one end of the bottom surface of the connecting block 516, and the cutter 517 can cut the film of the lead frame laminating machine 3; the third brake motor 515 rotates to drive the fifth gear 514 to move on the tooth surface of the third rack 511, and is limited to move in the T-shaped groove 510 through the T-shaped rod 512, thereby driving the cutter 517 to move left and right, and the third drive assembly and the fourth drive assembly can cut the excess film of the lead frame after laminating along the four sides of the outer wall of the laminating head 419, and the cooperation of the third drive assembly and the fourth drive assembly can match and cut laminating heads 419 of different sizes, which has certain versatility and flexibility, and improves cutting accuracy and cutting quality. At the same time, the cooperation of the third drive assembly and the fourth drive assembly will not cause the film in the lead frame laminating machine 3 to break, so that it can continue to operate.

[0027] As a preferred solution, further, Figure 14 As shown, the fifth driving assembly includes: a sixth gear 518, a right-angle plate 519, a second flat brake motor 520 and a seventh gear 521. The sixth gear 518 is sleeved on the outer wall of the moving rod 418 through the seventh bearing. The top surface of the sixth gear 518 is connected and fixed to the center of the bottom surface of the rectangular block 51; the right-angle plate 519 is set at one end of the bottom surface of the rectangular block 51, and the right-angle plate 519 plays a certain supporting role for its connecting parts; the second flat brake motor 520 is set at the top center of the bottom of the right-angle plate 519, and the second flat brake motor 520 has a certain self-locking ability, and the second flat brake motor 520 occupies a small area; the seventh gear 521 is arranged at the output end of the second flat brake motor 520, and the seventh gear 521 is engaged with the sixth gear 518; the second flat brake motor 520 rotates to drive the seventh gear 521 to rotate on the outer wall tooth surface of the sixth gear 518, thereby driving the rectangular block 51 to rotate on the outer wall of the moving rod 418, and the fifth driving component cuts the film of its lead frame laminating machine 3 on four sides by rotating the rectangular block 51.

[0028] The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process. The specific working is as follows. Since the film lamination pressure of the traditional lead frame is the same as the whole, and the pressure of the ceramic area and the copper area of ​​the lead frame are different, the film lamination quality of the lead frame for the ceramic area and the copper area is poor; the lead frame is fixed by the lead frame conveyor 2 and moved to the bottom of the lamination pressure head 419, and the copper area module is replaced by the lamination pressure head 419, and a first brake motor 48 drives the large gear 412 to engage with the first gear 45, and a second brake motor 414 drives the first gear 45 to rotate. At this time, the first gear 45 The rotation speed becomes larger, and the transmission bonding pressure head 419 of the first connecting rod 416, the second connecting rod 417 and the moving rod 418 exerts a large pressure on the copper area of ​​the lead frame, and the copper area of ​​the lead frame is pressed and bonded by the lead frame bonding machine 3; the bonding pressure head 419 replaces the ceramic area module, and similarly, another first brake motor 48 drives the small gear 413 to contact and engage with the first gear 45, and another second brake motor 414 drives the first gear 45 to rotate and the rotation speed of the first gear 45 becomes smaller, so that the bonding pressure head 419 has a small pressure on the ceramic area of ​​the lead frame, thereby improving the bonding quality of different areas of the lead frame through this device, and improving the quality of the lead frame. Film laminating quality; by laminating the lead frame, and laminating the laminating head 419 with the lead frame, the first flat brake motor 56 drives the two electric push rods 58, and the two electric push rods 58 make the two rectangular rods 59 drive the two cutters 517 to move to the two sides of the outer wall of the laminating head 419 for laminating, and the two third brake motors 515 drive the two cutters 517 to cut the film of the lead frame laminating machine 3, after cutting, the electric push rod 58 returns to its original position, and the second flat brake motor 520 drives the rectangular block 51 to rotate to 90 degrees, and similarly, the first flat brake motor 56 and the two rectangular rods 59 drive the two cutters 517 to laminat The other two sides of the outer wall of the head 419, and two third brake motors 515 drive two cutters 517 to cut the film of the lead frame film laminating machine 3; and the film cutting of the lead frame film laminating machine 3 by this device will not cause the film of the lead frame film laminating machine 3 to break, thereby reciprocating the film laminating of the lead frame; in the film laminating of the lead frame, the lead frame will have different specifications and sizes, and the staff only needs to change the size of the laminating head 419, and the cutting device 5 can also cooperate with the laminating heads 419 of different sizes, which has certain versatility and flexibility, improves the versatility and cutting accuracy of the lead frame after film laminating, and improves the film laminating quality of the lead frame.

[0029] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A film laminating device for a lead frame, characterized in that: include: A right-angle support plate (1) capable of supporting the operation of the entire device; A lead frame conveyor (2) is arranged at the center of the top surface of the bottom of the right-angle support plate (1); A lead frame laminating machine (3) is arranged at the inner bottom of the right-angle support plate (1), and the lead frame laminating machine (3) is located directly above the lead frame conveyor (2) at a certain distance; A pressing device (4) is arranged at the center of the inner top of the right-angle support plate (1), and the pressing device (4) is capable of pressing down the lead frame to apply the film; The cutting device (5) is sleeved on the outer wall of the movable end of the pressing device (4), and the cutting device (5) can cut the lead frame laminating machine (3) along the four sides of the movable end of the pressing device (4).

2. The film laminating device for a lead frame according to claim 1, characterized in that: The pressing device (4) comprises: A rectangular support block (41) is arranged at the center of the inner top of the right-angle support plate (1), and a first chamber (42) is opened in the rectangular support block (41); A support plate (43) is provided at one end of the inner wall of the first chamber (42); A rotating column (44) is arranged at the center of the outer wall of the support plate (43) through a first bearing, and both ends of the rotating column (44) extend outwards; A first driving assembly is provided at the right end of the rotating column (44); A second driving assembly is provided at the left end of the rotating column (44); The fitting pressure head (419) is arranged at the moving end of the second driving component.

3. The film laminating device for a lead frame according to claim 2, characterized in that: The first drive assembly comprises: A first gear (45) is provided at the right end of the rotating column (44); A support platform (46) is provided at the center of the bottom right side of the outer wall of the support plate (43); There are two second gears (47), which are respectively arranged at the right corners of both ends of the support platform (46) through two second bearings; There are two first brake motors (48), which are respectively arranged on the right corner bottom surfaces at both ends of the support platform (46), and the output ends of the two first brake motors (48) respectively pass through the bottom of the support platform (46) and are respectively connected and fixed to the two second gears (47); A cylindrical block (49) is provided at the center of the right end of the top surface of the support platform (46); A grooved plate (410) is provided on the top surface of the cylindrical block (49); Two L-shaped blocks (411) are respectively embedded in the two ends of the trough plate (410), and both L-shaped blocks (411) can move within the groove of the trough plate (410); A large gear (412) is arranged on the top left end of one of the L-shaped blocks (411) via a second bearing; A small gear (413) is arranged on the top left end of the other L-shaped block (411) through a third bearing; Two second brake motors (414) are respectively arranged at the top right ends of the two L-shaped blocks (411), and the output ends of the two second brake motors (414) are respectively connected and fixed to the right ends of the large gear (412) and the small gear (413); There are two first racks (415) which are respectively arranged at one end of one side of the bottom of the two L-shaped blocks (411). The two first racks (415) are respectively engaged with the two second gears (47).

4. The film laminating device for a lead frame according to claim 3, characterized in that: One of the first brake motors (48) rotates and drives a second gear (47) through a first rack (415) to limit the movement of an L-shaped block (411) at one end in a groove of a slotted plate (410), thereby causing the large gear (412) and the first gear (45) to contact and mesh with each other, and a second brake motor (414) rotates and drives the first gear (45) through the large gear (412) to rotate the rotating column (44); another of the first brake motors (48) rotates and drives the small gear (413) and the first gear (45) to contact and mesh with each other, and another second brake motor (414) rotates to rotate the rotating column (44).

5. The film laminating device for a lead frame according to claim 4, characterized in that: The second drive assembly includes: A first connecting rod (416) is provided at the left end of the rotating column (44); A second connecting rod (417) is arranged on the left side of the top end of the first connecting rod (416) via a fourth bearing; The movable rod (418) is arranged on the right side of the bottom end of the second connecting rod (417) through the fifth bearing. The movable rod (418) extends outward through the bottom surface of the outer wall of the rectangular support block (41), and the movable rod (418) can move within the bottom surface of the rectangular support block (41). The rotation of the rotating column (44) drives the first connecting rod (416) to drive the second connecting rod (417) to move the movable rod (418) up and down, thereby driving the fitting pressure head (419) to move up and down.

6. The film laminating device for a lead frame according to claim 5, characterized in that: The cutting device (5) comprises: A rectangular block (51) is sleeved on the bottom outer wall of the movable rod (418), a second chamber (52) is provided in the rectangular block (51), and movable grooves (53) are provided at the bottom corners of the front and rear ends of the rectangular block (51), and the two movable grooves (53) are diagonally opposite to each other; A third driving component is arranged at the bottom center of the second chamber (52), and two moving ends of the third driving component are respectively embedded in the two moving grooves (53); Two electric push rods (58) are respectively arranged at two moving ends of the third drive assembly; Two rectangular rods (59) are respectively arranged on the bottom surfaces of the two electric push rods (58), and one side of the outer wall of the two rectangular rods (59) is respectively provided with a T-shaped groove (510); The fourth driving assembly is two in number and is symmetrically arranged at one end of each of the two T-shaped grooves (510); The fifth driving component is arranged at one end of the bottom surface of the rectangular block (51).

7. The film laminating device for a lead frame according to claim 6, characterized in that: The third drive assembly includes: The third gear (54) is sleeved on the outer wall of the moving rod (418) through a sixth bearing, and the third gear (54) is located at the bottom center of the second chamber (52); Two second racks (55) are provided at the left and right ends of the third gear (54), and one end of each of the two second racks (55) is embedded in the two movable grooves (53). A first flat brake motor (56) is arranged on the top surface of the second chamber (52) near the center; The fourth gear (57) is arranged at the output end of the first flat brake motor (56), and the fourth gear (57) and the first flat brake motor (56) are meshed with each other.

8. The film laminating device for a lead frame according to claim 7, characterized in that: The first flat brake motor (56) rotates to drive the fourth gear (57), causing the third gear (54) to drive the two second racks (55) to respectively limit, retract, and expand in the two movable slots (53).

9. The film laminating device for a lead frame according to claim 8, characterized in that: The fourth drive assembly includes: A third rack (511) is provided on the bottom surface of the rectangular rod (59); A T-shaped rod (512), one end of which is embedded in the T-shaped groove (510), and the T-shaped rod (512) is capable of limited movement in the T-shaped groove (510); A bearing seat (513) is provided at one end of the T-shaped rod (512); a fifth gear (514) disposed at one end of the rotating end of the bearing seat (513), the fifth gear (514) being meshed with the third rack (511); A third brake motor (515) is provided at the other end of the rotating end of the bearing seat (513); A connecting block (516) is provided on the bottom surface of the bearing seat (513); The cutter (517) is arranged at one end of the bottom surface of the connecting block (516); the third brake motor (515) rotates to drive the fifth gear (514) to move on the tooth surface of the third rack (511), and moves within the T-shaped groove (510) through the T-shaped rod (512), thereby driving the cutter (517) to move left and right.

10. The film laminating device for a lead frame according to claim 9, characterized in that: The fifth drive assembly comprises: The sixth gear (518) is sleeved on the outer wall of the moving rod (418) through the seventh bearing, and the top surface of the sixth gear (518) is connected and fixed to the center of the bottom surface of the rectangular block (51); A right-angle plate (519) is provided at one end of the bottom surface of the rectangular block (51); A second flat brake motor (520) is arranged at the center of the top surface of the bottom of the right-angle plate (519); The seventh gear (521) is arranged at the output end of the second flat brake motor (520), and the seventh gear (521) is meshed with the sixth gear (518); the second flat brake motor (520) rotates to drive the seventh gear (521) to rotate on the outer wall tooth surface of the sixth gear (518), thereby driving the rectangular block (51) to rotate on the outer wall of the moving rod (418).

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