Roll type discharging machine for lead frame

Abstract

The utility model discloses a roll-type discharging machine for a lead frame, which relates to the technical field of discharging machines and comprises a rack, a discharging device for sending out the lead frame is arranged in the rack, and a recycling device for recycling a protective film on the lead frame when the lead frame is sent out by the discharging device is arranged in the rack. A flattening structure for flattening the lead frame is arranged at the position, located at the output end of the discharging device, above the machine frame, the conveyed bent lead frame can be flattened through the flattening structure, the situation that adhesive tape deviates when the lead frame is pasted with the adhesive tape is avoided, meanwhile, the flattening structure is movably arranged, and therefore the adhesive tape is not prone to deviation. The flattening structure can face lead frames of different thicknesses.

Description

TECHNICAL FIELD

[0001] The utility model relates to a discharging machine technical field especially relates to a kind of roll type discharging machines for lead frame. BACKGROUND

[0002] Lead frame will need to be sent into the device for tape sticking process by discharging mechanism before carrying out tape sticking process, since lead frame is collected and transported by winding after being produced, so that lead frame will appear overall bending in the process that discharging mechanism transports the lead frame wound to tape sticking process, so that adhesive tape will appear deviation in the process that lead frame is taped. SUMMARY

[0003] The utility model discloses to overcome above-mentioned situation shortage, aims at providing a kind of technical scheme that lead frame is flattened when conveying.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of roll type discharging machines for lead frame, including rack, the inside of the rack is provided with the discharging device of sending lead frame, the inside of the rack is provided with the recovery device of recovering protective film on lead frame when discharging device sends lead frame, the position of the rack top located discharging device output end is equipped with the flattening structure of flattening lead frame.

[0005] As a further scheme of the utility model: the flattening structure includes multiple pedestals on the rack, is located the movable plate for flattening lead frame above the pedestal.

[0006] As a further scheme of the utility model: multiple lower flattening convex rollers are arranged in the middle of the pedestal, multiple upper flattening convex rollers are arranged in the middle of the movable plate, the flattening gap that lead frame is flattened when passing between the lower flattening convex roller and the upper flattening convex roller is formed, multiple lower flattening convex rollers and multiple upper flattening convex rollers are misaligned.

[0007] As a further scheme of the utility model: the upper portion of the movable plate is equipped with the adjusting structure for adjusting the spacing between movable plate and pedestal.

[0008] As a further scheme of the utility model: the adjusting structure includes guide rod on the pedestal, one end of the guide rod is connected and protrudes from movable plate and is coupled with pressing block by screw thread, the lower portion of the pressing block and movable plate abut, spring is sleeved on the position between the guide rod and pedestal and movable plate.

[0009] As a further scheme of the utility model: the discharging device includes the first motor on the outer side of the rack and the discharging wheel for sending lead frame in driving connection with the first motor in the inside of the rack.

[0010] As a further scheme of the utility model: the recovery device includes the second motor that is arranged outside the rack, the second motor is connected with the material collecting wheel that rolls the protective film through the drive shaft.

[0011] As a further scheme of the utility model: the rack is located on the output lead frame path of the discharging device and is used for blowing away the dust on the lead frame.

[0012] As a further scheme of the utility model: the blowing structure includes the connecting seat on the rack and the air pipe for blowing away the dust on one side of the connecting seat, the air pipe is rotatably connected to the connecting seat, the outer side of the connecting seat is coupled with the locking member that limits the angle of the air pipe through the thread, the rack is equipped with the limiting block, and the limiting port for avoiding the lead frame from shaking and deviating is formed in one side of the limiting block.

[0013] As a further scheme of the utility model: the rack is equipped with the compression mechanism for preventing the lead frame from deviating.

[0014] As a further scheme of the utility model: the compression mechanism includes the mounting seat on the rack, two movable limiting plates are arranged on the mounting seat, the air cylinder is arranged above the limiting plate, the compression wheel for pressing the lead frame is arranged below the air cylinder and is connected with the connecting sheet, the third motor is arranged on the outer side of the limiting plate, the transmission roller for driving the lead frame to move to the tape sticking station is connected with the third motor through the drive shaft, the transmission roller is connected to the limiting plate, and the adjusting structure for adjusting the spacing between the two limiting plates is further arranged in the limiting plate.

[0015] As a further scheme of the utility model: the adjusting mechanism includes the limiting wheel that is mounted in the limiting plate, the screw rod is arranged on the rack, one end of the screw rod penetrates the limiting wheel and protrudes from the outer side of the limiting plate, and the screw rod is threadedly coupled with the limiting wheel.

[0016] Compared with the prior art, the beneficial effects of the technical scheme are that the curved lead frame discharged by the discharging device can be flattened by the flattening structure, so that the lead frame does not deviate when the tape is stuck, and the flattening structure is movably arranged, so that the flattening structure can face lead frames of different thicknesses.

[0017] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0019] Figure 1 is a structure of the present application Figure 1 ;

[0020] Figure 2 is a structure of the present application Figure 2 ;

[0021] Figure 3 is a structure of the present application

[0022] Figure 4 is Figure 1 A local structure in the embodiment of the present application

[0023] Figure 5 is Figure 1 B local structure in the embodiment of the present application DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0025] Please refer to Figures 1-5 , a roll type material feeding machine for lead frame, comprising a rack 1, the inside of the rack 1 is provided with a material feeding device 2 for feeding out the lead frame, the inside of the rack 1 is provided with a recovery device 3 for recovering the protective film between the lead frames, the top of the rack 1 is provided with a flattening structure 4 in contact with the surface of the lead frame, the flattening structure 4 is movably arranged, the flattening structure 4 can be relatively far away or close to the lead frame, the curved lead frame fed out can be flattened through the flattening structure, so that the lead frame will not appear the situation of adhesive tape offset when the tape is pasted, at the same time, the flattening structure is movably arranged, so that the flattening structure can face the lead frame with different thickness.

[0026] In some embodiments: the flattening structure 4 comprises a plurality of bases 41 located on the rack 1, a movable plate 42 located above the bases 41 for flattening the lead frame, a plurality of lower flattening convex rollers 43 are arranged at intervals in the middle of the bases 41, a plurality of upper flattening convex rollers 44 are arranged at intervals in the middle of the movable plate 42, the lower flattening convex rollers 43 and the upper flattening convex rollers 44 form a flattening gap through which the lead frame is flattened, the plurality of lower flattening convex rollers 43 and the plurality of upper flattening convex rollers 44 are arranged in a staggered manner, an adjusting structure 45 is arranged above the movable plate 42 for adjusting the distance between the movable plate 42 and the base 41, the adjusting structure 45 comprises a guide rod 451 located on the base 41, one end of the guide rod 451 penetrates the movable plate 42 and is coupled with a pressing block 452 through threads, the lower side of the pressing block 452 abuts against the movable plate 42, and the guide rod 451 is sleeved with a spring 453 at a position between the base 41 and the movable plate 42.

[0027] Specific flattening process: the lead frame moves through the flattening gap between the lower flattening convex rollers 43 and the upper flattening convex rollers 44, the flattening gap between the lower flattening convex rollers 43 and the upper flattening convex rollers 44 matches the thickness of the lead frame, so that the curved lead frame can be flattened, and when facing a lead frame with a relatively thin thickness, the pressing block 452 can be rotated forward, so that the pressing block 452 moves towards the base 41, and the pressing block 452 moves while driving the movable plate 42 to move, thereby reducing the distance between the pressing block 452 and the base 41, so as to reduce the distance between the lower flattening convex rollers 43 and the upper flattening convex rollers 44, so that the flattening gap between the lower flattening convex rollers 43 and the upper flattening convex rollers 44 matches the thickness of the lead frame, achieving the effect of flattening, and when facing a lead frame with a relatively thick thickness, the pressing block 452 is rotated in the opposite direction, so that the pressing block 452 releases the pressure on the movable plate 42, allowing the spring 453 to recover, and when the spring 453 recovers, the movable plate 42 is pushed to the lower side of the pressing block 452, so as to increase the flattening gap between the lower flattening convex rollers 43 and the upper flattening convex rollers 44, so as to adapt to the thickness of the lead frame.

[0028] In some embodiments: the feeding device 2 comprises a first motor 21 arranged outside the rack 1 and a feeding wheel 22 arranged inside the rack 1 and drivingly connected with the first motor 21 for feeding out the lead frame, and the recovery device 3 comprises a second motor 31 arranged outside the rack 1, the second motor 31 is connected with a material winding wheel 32 for winding the protective film, the first motor 21 drives the feeding wheel 22 to rotate after being started, the feeding wheel 22 feeds out the lead frame placed thereon after rotating, the second motor 31 drives the material winding wheel 32 to rotate after being started, and the material winding wheel 32 winds the protective film on the fed-out lead frame after rotating, so as to avoid the protective film entering the tape sticking process together with the lead frame.

[0029] In some embodiments: the air blowing structure 5 for blowing away the dust on the lead frame on the output lead frame path of the material feeding device 2 on the rack 1, the air blowing structure includes a connecting seat 51 on the rack 1 and an air pipe 52 on one side of the connecting seat 51 for blowing away the dust, the air pipe 52 is rotationally connected to the connecting seat 51, the outer side of the connecting seat 51 is coupled with a locking member 53 for limiting the angle of the air pipe 52 through a thread, and a limiting block 54 is arranged on the rack 1, and a limiting opening 55 for avoiding the lead frame from shaking and deviating is arranged on one side of the limiting block 54.

[0030] After the air pipe 52 is connected with the external air source, the wind can be blown to the lead frame through the gap on the surface to blow away the dust on the lead frame, and the wind with the electric charge can also be used to remove the static electricity. After the lead frame passes below the air pipe 52, a part of the lead frame will pass through the limiting opening 55, and the thickness of the limiting opening 55 is the same as the thickness of the lead frame, so that the lead frame can be preliminarily flattened, and the lead frame can also be prevented from shaking and deviating to cause the deviation of the moving path of the lead frame.

[0031] In some embodiments: a pressing mechanism 11 for preventing the lead frame from deviating is arranged on the rack 1, the pressing mechanism 11 includes a mounting seat 12 on the rack 1, two movable limiting plates 13 are arranged on the mounting seat 12, an air cylinder 14 is arranged above the limiting plates 13, a pressing wheel 15 for pressing the lead frame is arranged below the air cylinder 14 through a connecting sheet, a third motor 16 is arranged on the outer side of the limiting plates 13, the third motor 16 is connected with a transmission roller 17 for driving the lead frame to move to the tape sticking station through a driving shaft, the transmission roller 17 penetrates the limiting plates 13, and an adjusting structure 6 for adjusting the spacing between the two limiting plates 13 is further arranged in the limiting plates 13, the adjusting structure 6 includes a limiting wheel 61 arranged in the limiting plates 13, a screw rod 62 is arranged on the rack 1, one end of the screw rod 62 penetrates the limiting wheel 61 and protrudes from the outer side of the limiting plates 13, and the screw rod 62 is threadedly coupled with the limiting wheel 61;

[0032] After the first motor 21 and the second motor 31 are started, the third motor 16 is started at the same time, the third motor 16 drives the transmission roller 17 to rotate after being started, the transmission roller 17 directly contacts the lead frame, so that the lead frame can be driven to the tape sticking process, and when the transmission of the lead frame is to be stopped, the three motors are turned off, and the air cylinder 14 is started at the same time as the motors are turned off, the air cylinder 14 drives the pressing wheel 15 to move to the direction of the lead frame after being started, so that the pressing wheel 15 contacts the lead frame, and the lead frame is pressed by the pressing wheel 15 to avoid the lead frame from continuing to move due to the residual kinetic energy.

[0033] When facing lead frames of different widths, the screw rod 62 can be rotated, the screw rod 62 can drive the limiting wheel 61 to move after being rotated, the limiting wheel 61 can drive the limiting plate 13 to move again, when the position of a single limiting plate 13 needs to be adjusted, the fixation of the limiting wheel 61 that does not need to move can be released, the limiting wheel 61 and the limiting plate 13 are not fixed, the screw rod 62 cannot drive the limiting plate 13 to move when being rotated by the limiting wheel 61 that is released, so as to achieve the purpose of moving a single limiting plate 13.

[0034] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other embodiments without departing from the scope of the present application. Therefore, the embodiments should be seen as exemplary and not limiting the scope of the application, which is defined by the appended claims rather than the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore to be embraced by the application. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A roll-to-line machine for lead frames, characterized by, The application relates to a lead frame feeding device, which comprises a rack (1), wherein an internal part of the rack (1) is provided with a lead frame feeding device (2) for feeding out a lead frame, and the internal part of the rack (1) is provided with a recovery device (3) for recovering a protective film on the lead frame when the lead frame feeding device (2) feeds out the lead frame, and a flattening structure (4) for flattening the lead frame is arranged above the rack (1) at a position of an output end of the lead frame feeding device (2).

2. The roll feeder for lead frames according to claim 1, wherein The flattening structure (4) comprises a plurality of bases (41) arranged on the rack (1), and a movable plate (42) for flattening the lead frame is arranged above the bases (41).

3. The roll feeder for lead frames according to claim 2, wherein A plurality of lower flattening convex rollers (43) are arranged at intervals in the middle of the bases (41), a plurality of upper flattening convex rollers (44) are arranged at intervals in the middle of the movable plate (42), and the lower flattening convex rollers (43) and the upper flattening convex rollers (44) form flattening gaps for flattening the lead frame when the lead frame passes through, and the plurality of lower flattening convex rollers (43) and the plurality of upper flattening convex rollers (44) are arranged in a staggered mode.

4. The roll feeder for lead frames as recited in claim 2, wherein, An adjusting structure (45) for adjusting the spacing between the movable plate (42) and the bases (41) is arranged above the movable plate (42).

5. The roll feeder for lead frames as recited in claim 4, wherein, The adjusting structure (45) comprises guide rods (451) arranged on the bases (41), one end of the guide rods (451) penetrates through the movable plate (42) and is coupled with a pressing block (452) through threads, the lower part of the pressing block (452) abuts against the movable plate (42), and springs (453) are arranged on the guide rods (451) at positions between the bases (41) and the movable plate (42).

6. The roll feeder for lead frames as defined in claim 1, wherein, The lead frame feeding device (2) comprises a first motor (21) arranged on the outer side of the rack (1), a lead frame feeding wheel (22) arranged in the internal part of the rack (1) and drivingly connected with the first motor (21) for feeding out the lead frame, and the recovery device (3) comprises a second motor (31) arranged on the outer side of the rack (1), and the second motor (31) is connected with a material collecting wheel (32) for winding the protective film through a driving shaft.

7. The roll feeder for lead frames as defined in claim 1, wherein, A blowing structure (5) for blowing away dust on the lead frame is arranged on the rack (1) on a path of the lead frame output by the lead frame feeding device (2).

8. The roll feeder for lead frames according to claim 7, wherein The blowing structure comprises a connecting seat (51) on the rack (1) and a gas pipe (52) arranged on one side of the connecting seat (51) for blowing away dust, the gas pipe (52) is rotationally connected to the connecting seat (51), a locking member (53) for limiting the angle of the gas pipe (52) is coupled with the outer side of the connecting seat (51) through threads, and a limiting block (54) is arranged on the rack (1), and a limiting opening (55) for avoiding the lead frame from shaking and deviating is arranged on one side of the limiting block (54).

9. The roll feeder for lead frames as defined in claim 1, wherein, A pressing mechanism (11) for preventing the lead frame from deviating is arranged on the rack (1).

10. The roll feeder for lead frames of claim 9 wherein, The pressing mechanism (11) comprises a mounting base (12) on the frame (1), two movable limiting plates (13) are arranged on the mounting base (12), a cylinder (14) is arranged above the limiting plates (13), a pressing wheel (15) for pressing the lead frame is arranged below the cylinder (14) through a connecting plate, a third motor (16) is arranged on the outer side of the limiting plates (13), a transmission roller (17) for driving the lead frame to move to the tape station is connected with the third motor (16) through a driving shaft, the transmission roller (17) is connected with the limiting plates (13), an adjusting structure (6) for adjusting the spacing between the two limiting plates (13) is further arranged in the limiting plates (13), the adjusting structure (6) comprises a limiting wheel (61) arranged in the limiting plates (13), a screw rod (62) is arranged on the frame (1), one end of the screw rod (62) penetrates through the limiting wheel (61) and protrudes from the outer side of the limiting plates (13), and the screw rod (62) is threadedly coupled with the limiting wheel (61).

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