Rear end packing plant of disc chip
Technical Field
The invention relates to the technical field of chip back-end packaging equipment, in particular to a back-end packaging device for a disc-shaped chip.
Background
At present, after the chip braid of the integrated circuit is coiled, a protecting belt is generally required to be wound and sealed at the joint of the protecting belt, after the disc-shaped chip is subjected to manual spot check and repeated check, the protecting belt with a fixed length is manually taken, and after one circle of winding, a masking tape is pasted at the joint of the protecting belt.
The protection belt can better protect the chip, prevents the chip damage, and in addition, the protection belt can also prevent the chip damage that the chip probably appears in the transportation. However, the original back-end packaging operation mode of the chip has the following disadvantages:
The existing winding of the protective tape and the adhesive tape is completed manually, the problems of high labor intensity, low production efficiency and high labor cost exist, the chips are easy to damage due to the fact that the protective tape or the adhesive tape is forgotten to be wound once manual operation is performed, in addition, the difference exists in winding tightness due to the fact that the manual operation is adopted, the protective tape is scattered when the winding tightness is too loose, the protective tape does not play a protective role, the chips in the braid are crushed when the winding tightness is too tight, meanwhile, the difference exists in the positions of the textured adhesive tape, and the attractiveness is poor.
There is also a winding device for packaging chips of integrated circuits as disclosed in chinese patent publication No. CN102991773a, which can automatically wind a protective tape or a sponge strip, but only discloses a device such as a tape sticking machine or a winding machine, and does not disclose a specific structure of the device, and does not have practical reference value.
Disclosure of Invention
According to the rear end packaging device for the disc-shaped chip, the winding protection belt of the disc-shaped chip and the tape pasting and sealing of the joint of the protection belt can be automatically achieved, the working efficiency is greatly improved, the labor cost is reduced, the winding protection belt is consistent in tightness, the reliability is good, the adhesive tape attaching positions are uniform, and the disc-shaped chip packaging device is tidier and attractive.
The technical scheme is that the rear end packaging device of the disc-shaped chip is characterized by comprising a base, wherein the base is provided with:
the support platform is used for placing the disc-shaped chip;
a protective tape winding unit for feeding and winding a protective tape on a disk-shaped chip placed on the support platform;
and the adhesive tape pasting unit is used for pasting adhesive tapes on the protective tapes to seal the joint of the protective tapes after the protective tape winding unit winds the protective tapes on the disc-shaped chips.
Further, the protective tape winding unit includes:
the protective belt feeding rail is arranged on an installation platform on the base and used for guiding feeding of the protective belt;
The protective belt feeding and tensioning mechanism is arranged at the front end of the protective belt feeding track and used for driving the protective belt to move forward for feeding and tensioning the protective belt reversely;
the protection belt winding track is arranged on the supporting platform, surrounds the periphery of the disc-shaped chip arranged on the supporting platform and is used for guiding the protection belt to be wound to the outer side of the disc-shaped chip;
The protective belt pressing mechanism is arranged on the supporting platform and is used for pressing the protective belt after the protective belt is wound on the disc-shaped chip;
the protective belt cutting mechanism comprises a cutting cutter, is arranged at the front end of the protective belt feeding and tensioning mechanism and is used for cutting after the protective belt is wound on the disc-shaped chip.
Further, the protection belt feeding track comprises a feeding track body, a track groove body for the protection belt to pass through is arranged on the feeding track body, a protection belt guiding device is further arranged at one end of the feeding track body, used for feeding the protection belt, and comprises two side guiding wheels which are respectively arranged at two sides of the protection belt and are vertically arranged, and a bottom guiding wheel which is arranged at the lower end of the protection belt and is transversely arranged.
Further, a groove is formed in the side wall of one side of the track groove body, which is close to the feeding end of the protective belt, the height of the groove is lower than that of the protective belt placed in the track groove body, and a track cover plate is detachably mounted on the groove.
Further, the protection belt feeding and tensioning mechanism comprises a driving roller and at least one driven roller, the driving roller is connected with a driving motor, and the driving motor can drive the driving roller to rotate so as to drive the protection belt to move.
Further, the driving motor is installed at the lower end of the installation platform on the base, the output shaft of the driving motor is upwards arranged, the upper end of the installation platform is connected with the driving roller, the installation platform is provided with a roller installation long slot corresponding to the driven roller, and the driven roller is adjustably installed in the roller installation long slot.
Further, the protection belt cutting mechanism further comprises a driving device and a detection sensor, the detection sensor is installed on the installation platform and correspondingly faces the protection belt, and when the detection sensor detects that the protection belt is driven by the protection belt feeding and tensioning mechanism to be fed for a set length, the driving device can drive the cutting tool to cut the protection belt.
Further, the protection belt winding track comprises a track outer ring arranged on the supporting platform and a track inner ring arranged on the inner side of the track outer ring, the protection belt is wound between the track outer ring and the track inner ring, a track lifting cylinder is arranged at the lower end of the track inner ring, a guide pillar and a guide sleeve guide fit are arranged between the track inner ring and the supporting platform, and a protection belt feeding notch is formed in the track outer ring.
Further, the protecting belt pressing mechanism comprises a pulling claw, the pulling claw is rotatably arranged on a pulling claw fixing plate, the pulling claw is connected with a pulling claw driving cylinder, the pulling claw driving cylinder can drive the pulling claw to press the protecting belt, the pulling claw driving cylinder is arranged at the lower end of the pulling claw fixing plate through a cylinder mounting plate, the pulling claw fixing plate is arranged on the supporting platform in a lifting manner through a pulling claw lifting cylinder, and the pulling claw fixing plate further comprises an arc-shaped part matched with the outer ring of the track.
Further, a cutting tool protecting shell is arranged on the mounting platform, a feeding guide plate is arranged on the cutting tool protecting shell, and the feeding guide plate is matched with the pusher dog to guide feeding of the protecting belt.
Further, the protective belt feeding and tensioning mechanism is at least two driven rollers, and the driven rollers and the driving rollers are matched to adjust the output direction of the protective belt to face between the feeding guide plate and the pusher dog.
Further, the supporting platform comprises a chip supporting table for supporting the disc-shaped chip, a positioning needle is arranged at the center of the chip supporting table and corresponds to the center hole of the disc-shaped chip, a sucking disc is further arranged on the chip supporting table, the sucking disc is connected with an air pump, and a proximity switch is further arranged on the chip supporting table.
Further, the tape application unit includes:
The adhesive tape feeding table is used for placing adhesive tapes;
The adhesive tape feeding mechanism is arranged at the front end of the adhesive tape feeding platform and is used for driving the adhesive tape arranged on the adhesive tape feeding platform to feed;
The adhesive tape pre-pasting mechanism comprises an adhesive tape pre-pasting compression wheel, and the adhesive tape pre-pasting compression wheel can locally paste the adhesive tape on a protection belt wound on a disc-shaped chip after the adhesive tape feeding mechanism finishes feeding;
the adhesive tape shearing mechanism comprises an adhesive tape shearing cutter and is used for shearing the adhesive tape after the adhesive tape is fed by the adhesive tape feeding mechanism for a fixed length;
The rotary trowelling mechanism comprises an adhesive tape trowelling compression wheel and a rotary driving device, and the adhesive tape trowelling compression wheel can be used for sealing the joint of the protective belt by attaching the whole adhesive tape to the protective belt under the driving of the rotary driving device.
Further, be equipped with moving platform on the base, the sticky tape feed platform with sticky tape feeding mechanism and sticky tape is pasted the mechanism in advance and is set up respectively moving platform is last, the base with through platform slide rail and slider sliding fit between the moving platform, still be equipped with the platform and remove the cylinder on the base, the piston rod of platform removal cylinder with moving platform is connected, the platform removal cylinder can drive moving platform removes and avoids rotatory trowelling mechanism.
Further, the moving platform is further provided with a limiting plate which can be matched with the base, and the limiting plate is used for limiting the moving platform when the piston rod of the platform moving cylinder contracts.
Further, sticky tape feeding mechanism includes two at least tight fit's sticky tape leading wheel, the sticky tape leading wheel sets up on mounting platform, the sticky tape is followed stretch out between the sticky tape leading wheel, still including setting up the clamping jaw of sticky tape leading wheel front end, the clamping jaw is installed on clamping jaw lift cylinder, last clamping jaw sideslip slide rail that still is provided with of moving platform, the clamping jaw sideslip slide rail is last to be equipped with clamping jaw sideslip slider, clamping jaw lift cylinder with clamping jaw sideslip slider fixed connection, clamping jaw sideslip cylinder can drive clamping jaw sideslip slider and remove on clamping jaw sideslip slide rail, the clamping jaw can press from both sides the sticky tape and with sticky tape is delivered to supporting platform position department.
Further, the adhesive tape pre-pasting mechanism comprises a first transverse moving cylinder fixed on the mounting platform through a mounting plate, a piston rod of the first transverse moving cylinder is connected with a second transverse moving cylinder through a connecting plate, and a piston rod of the second transverse moving cylinder is connected with the adhesive tape pre-pasting pinch roller.
Further, the adhesive tape shearing mechanism further comprises a driving device and an adhesive tape shearing sensor, and the adhesive tape shearing sensor drives the adhesive tape shearing cutter to shear the adhesive tape through the driving device after sensing that the adhesive tape feeding mechanism feeds the adhesive tape in a fixed length.
Further, the rotary driving device comprises a rotary cylinder arranged on the base, the rotary cylinder is connected with a connecting arm capable of rotating along with the rotary cylinder, one end, away from the rotary cylinder, of the connecting arm is connected with a vertical connecting plate, a trowelling driving cylinder is arranged on the vertical connecting plate, and a piston rod of the trowelling driving cylinder is connected with an adhesive tape trowelling compression wheel.
The rear end packaging device for the disc-shaped chip can feed the protective tape and wind the protective tape on the disc-shaped chip arranged on the supporting platform by arranging the protective tape winding unit, can automatically wind the protective tape on the disc-shaped chip, seals the joint of the protective tape by sticking the adhesive tape on the protective tape after the protective tape winding unit winds the protective tape on the disc-shaped chip, can replace manual operation, greatly improves the working efficiency, reduces the labor cost, and has good consistency of the winding tightness of the protective tape, uniform adhesive tape attaching position and more tidy and beautiful appearance by winding the protective tape by equipment.
Drawings
FIG. 1 is a schematic view of a back end packaging apparatus for a discoidal chip according to the present invention;
FIG. 2 is a schematic top view of a back end package for discoid chips according to the present invention;
FIG. 3 is a schematic view of a protective tape feed track of the present invention;
FIG. 4 is a schematic view of the protective tape feed tensioning mechanism and protective tape cutting mechanism of the present invention at a first view angle;
FIG. 5 is a schematic view of the protective tape feed tensioning mechanism and protective tape cutting mechanism of the present invention at a second view angle;
FIG. 6 is a schematic view of the support platform and protective tape winding track of the present invention at a first view of the protective tape compression mechanism;
FIG. 7 is a schematic view of the support platform and protective tape winding track of the present invention at a second view of the protective tape pressing mechanism;
FIG. 8 is a schematic view of the support platform and tape application unit of the present invention;
fig. 9 is a schematic view of the taping unit of the present invention at a first viewing angle;
FIG. 10 is a schematic view of the taping unit of the present invention at a second view angle;
Fig. 11 is a schematic top view of the tape application unit of the present invention.
Detailed Description
The following description will make clear and complete description of the technical solution of the present invention with reference to the accompanying drawings, it should be noted that the illustrations provided in the present embodiment are only schematic illustrations of the basic concepts of the present invention, and only the components related to the present invention are shown in the drawings, rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of each component in actual implementation may be arbitrarily changed, and the component layout may be more complex.
Referring to fig. 1 to 11, a rear end packing apparatus for a disc-shaped chip of the present invention includes:
a support platform 200 for placing a disk-shaped chip 300;
A protective tape winding unit 400 for feeding the protective tape 500 and winding the protective tape 500 on the disk-shaped chip 300 placed on the support platform;
the tape-attaching unit 600 is used to attach the adhesive tape 700 to the protective tape 500 to seal the interface of the protective tape 500 after the protective tape winding unit 400 winds the protective tape 500 around the disk-shaped chip 300.
Specifically, the protective tape winding unit includes:
a protective tape feeding rail 410, the protective tape feeding rail 410 being mounted on the mounting platform 101 on the base 100 for feeding and guiding the protective tape 500;
a protective tape feeding and tensioning mechanism 420, the protective tape feeding and tensioning mechanism 420 being provided at the front end of the protective tape feeding rail 410 for driving the protective tape 500 to move forward for feeding and being capable of tensioning the protective tape reversely;
a protective tape winding rail 430, the protective tape winding rail 430 being disposed on the support platform 200, the protective tape winding rail 430 surrounding an outer circumference of the disc-shaped chip 300 placed on the support platform for guiding the protective tape 500 to be wound to an outer side of the disc-shaped chip 300;
A protective tape pressing mechanism 440, the protective tape pressing mechanism 440 being disposed on the support platform 220 for pressing the protective tape 500 after the protective tape 500 is wound on the disk-shaped chip;
The protective tape cutting mechanism 450 includes a cutting tool 451 provided at the front end of the protective tape feeding and tensioning mechanism 420 for cutting after the protective tape 500 is wound around the disk-shaped chip.
Specifically, in this embodiment, the protective tape feeding track 410 includes a feeding track body 411, a track groove 412 through which the protective tape passes is provided on the feeding track body 411, one end of the feeding track body 411 for feeding the protective tape is further provided with a protective tape guiding device 413, the protective tape guiding device 413 includes two side guiding wheels 414 respectively provided on two sides of the protective tape and vertically provided, and a bottom guiding wheel 415 provided on the lower end of the protective tape and horizontally provided, and the side guiding wheels 414 and the bottom guiding wheel 415 can limit the feeding of the protective tape 500 from three directions, so as to ensure that the protective tape can enter the protective tape feeding track 410 according to the equipment requirement;
In addition, be provided with recess 416 on the lateral wall of one side of the track cell body 412 that is close to the protective tape feed end, the height of recess 416 is less than the height of the protective tape 500 of arranging in track cell body 412, detachably installs track apron 417 on the recess 416, is equipped with long slotted hole on the track apron 417, corresponds the lower extreme of feeding track body and is equipped with mounting hole and long slotted hole and matches, can realize the assembly through the bolt, and the setting of track apron can conveniently overhaul and adjust the protective tape feed track when required.
In this embodiment, the protective belt feeding and tensioning mechanism 420 includes a driving roller 421 and two driven rollers 422, which cooperate to clamp the protective belt, the driving roller 421 and the two driven rollers 422 are tightly matched, the driving roller 421 is connected with a driving motor 423, the driving motor 423 can drive the driving roller 421 to rotate, the driving roller 421 and the driven rollers 422 can drive the protective belt 500 to move through friction force, two driven rollers 422 are provided here, and the discharging direction of the protective belt 500 can be adjusted through the position layout of the driving roller 421 and the two driven rollers 422;
The driving motor 423 is installed at the lower end of the installation platform 101 on the base, the output shaft of the driving motor 423 is upward arranged, the upper end of the installation platform 101 is connected with the driving roller 421, the installation platform 101 is provided with a roller installation long slot 424 corresponding to the driven roller 422, the driven roller 422 is adjustably installed in the roller installation long slot 424, and the arrangement can facilitate adjustment of the degree of fit between the driving roller 421 and the driven roller 422.
Specifically, in this embodiment, the protective tape cutting mechanism 450 further includes a driving device 452 and a detection sensor 453, where the detection sensor 453 is installed on the mounting platform 101 and is correspondingly disposed towards the protective tape 500, and when the detection sensor 453 detects that the protective tape is fed to a set length under the driving of the protective tape feeding and tensioning mechanism, the driving device 452 can drive the cutting tool 451 to cut the protective tape 500.
In this embodiment, the protecting belt winding rail 430 includes a rail outer ring 431 disposed on the supporting platform 200 and a rail inner ring 432 disposed inside the rail outer ring 431, the protecting belt 500 is wound between the rail outer ring 431 and the rail inner ring 432, a rail lifting cylinder 433 is disposed at the lower end of the rail inner ring 432, two sides of the lifting cylinder 433 are respectively provided with one lifting cylinder, a guide post 434 and a guide sleeve 435 are disposed between the rail inner ring 432 and the supporting platform 200 for guiding and matching, and a protecting belt feeding notch 436 is disposed on the rail outer ring 431.
Specifically, in this embodiment, the protective tape pressing mechanism 440 includes a finger 441, the finger 441 is rotatably mounted on a finger fixing plate 442, the finger 441 is connected with a finger driving cylinder 443, the finger driving cylinder 443 is capable of driving the finger 441 to press the protective tape 500, the finger driving cylinder 443 is mounted at the lower end of the finger fixing plate 442 through a cylinder mounting plate 444, the finger fixing plate 442 is liftable mounted on the support platform 200 through a finger lifting cylinder 446, the finger fixing plate 442 further includes an arc portion 445 that cooperates with the track outer ring 431, and the arc portion 445 can be used for guiding during winding.
In addition, the mounting platform 101 is provided with a cutting tool protecting shell 454, the cutting tool protecting shell 454 is provided with a feeding guide plate 455, and the feeding guide plate 455 is matched with the pusher dog 441 to guide the feeding of the protecting belt 500, so that the protecting belt 500 can face the protecting belt feeding notch 436 and extend between the track outer ring 431 and the track inner ring 432, and on the front side, the driven roller 422 is matched with the driving roller 421 to adjust the output direction of the protecting belt 500 to face between the feeding guide plate 455 and the pusher dog 441.
In this embodiment, the supporting platform 200 includes a chip supporting platform 201 for supporting the disc-shaped chip 300, a positioning needle 202 is disposed at the center of the chip supporting platform 201 and corresponds to the center hole of the disc-shaped chip, a suction cup 203 is further disposed on the chip supporting platform 201, the suction cup 203 is connected with an air pump, a proximity switch 204 is further disposed on the chip supporting platform, and the proximity switch 204 can automatically start the suction cup to suck the disc-shaped chip 300 after the disc-shaped chip 300 is loaded on the supporting platform 200.
The following describes in detail the specific actions of the rear end packaging device of the disk-shaped chip of the present invention when the protective tape winding is performed:
After the proximity switch senses that the disc-shaped chip is loaded on the supporting platform, the sucker is started to absorb the disc-shaped chip, then the driving motor is started, the protection belt is driven to move forward to feed materials through the cooperation of the driving roller and the driven roller, the protection belt is fed into the protection belt winding track, after the protection belt is wound for a circle along the protection belt winding track, the protection belt is subjected to fixed-length feeding, the track lifting cylinder drives the inner ring of the track to descend, the pusher dog is driven by the pusher dog to press the protection belt under the driving of the pusher dog driving cylinder, the driving motor reversely rotates to reversely pull the protection belt to be tensioned, and then the driving device of the protection belt cutting mechanism drives the cutting tool to cut the protection belt by fixed length, so that the winding of the protection belt is completed.
In this embodiment, the tape application unit 600 includes:
A tape supply stand 610 for placing the tape 700;
the adhesive tape feeding mechanism 620, the adhesive tape feeding mechanism 620 is arranged at the front end of the adhesive tape feeding platform 610, and is used for driving the adhesive tape 700 arranged on the adhesive tape feeding platform to feed;
the tape pre-pasting mechanism 630, the tape pre-pasting mechanism 630 comprises a tape pre-pasting compression wheel 631, and the tape pre-pasting compression wheel 631 can compress and paste the local part of the tape 700 on the protection belt 500 wound on the disc-shaped chip after the tape feeding mechanism 620 finishes feeding;
a tape cutting mechanism 640 including a tape cutting blade 641 for cutting the tape 700 after the tape is fed by the tape feeding mechanism 630 by a fixed length;
the rotary trowelling mechanism 650, the rotary trowelling mechanism 650 includes a tape trowelling and pressing wheel 651 and a rotary driving device, and the tape trowelling and pressing wheel 651 can be used for attaching the whole tape 700 to the protective tape 700 to seal the joint of the protective tape under the drive of the rotary driving device.
Specifically in this embodiment, a moving platform 102 is disposed on a base 100, a mounting platform 101 is disposed on the moving platform 102, a tape feeding platform 610, a tape feeding mechanism 620 and a tape pre-attaching mechanism 630 are disposed on the moving platform 102, the base 101 and the moving platform 102 are slidably matched through a platform sliding rail 103 and a sliding block 104, a platform moving cylinder 105 is further disposed on the base 100, a piston rod of the platform moving cylinder 105 is connected with the moving platform 102, and the platform moving cylinder 105 can drive the moving platform to move to avoid the rotary trowelling mechanism 650.
Specifically, the moving platform 102 is further provided with a limiting plate 106 capable of being matched with the base, so that the moving platform 102 is limited in movement when the piston rod of the platform moving cylinder 105 is contracted.
Specifically, in this embodiment, the adhesive tape feeding mechanism 620 includes two adhesive tape guide wheels 621 that are tightly matched, the adhesive tape guide wheels 621 are disposed on the mounting platform 101, the adhesive tape 700 extends out from between the adhesive tape guide wheels 621, and further includes a clamping jaw 622 disposed at the front end of the adhesive tape guide wheels, the clamping jaw 622 is mounted on a clamping jaw lifting cylinder 623, the moving platform 102 is further provided with a clamping jaw lateral sliding rail 624, the clamping jaw lateral sliding rail 624 is correspondingly provided with a clamping jaw lateral sliding block 625, the clamping jaw lifting cylinder 623 is fixedly connected with the clamping jaw lateral sliding block 624, the clamping jaw lateral sliding cylinder 626 can drive the clamping jaw lateral sliding block 625 to move on the clamping jaw lateral sliding rail 624, and the clamping jaw 622 can clamp the adhesive tape 700 and convey the adhesive tape 700 to the position of the supporting platform 200.
The adhesive tape pre-pasting mechanism 630 comprises a first transverse moving cylinder 633 fixed on the mounting platform 101 through a mounting plate 632, a piston rod of the first transverse moving cylinder 633 is connected with a second transverse moving cylinder 635 through a connecting plate 634, and a piston rod of the second transverse moving cylinder 635 is connected with an adhesive tape pre-pasting pressing wheel 631.
The tape cutting mechanism 640 further comprises a driving device 642 and a tape cutting sensor 643, wherein the tape cutting sensor 643 drives the tape cutting tool 641 to cut the tape 700 through the driving device 642 after sensing that the tape feeding mechanism 620 feeds the tape in a fixed length;
the rotary driving device of the rotary trowelling mechanism 650 comprises a rotary cylinder 652 mounted on the base 100, the rotary cylinder 652 is connected with a connecting arm 653 capable of rotating along with the rotary cylinder 652, one end of the connecting arm 653, far away from the rotary cylinder 652, is connected with a vertical connecting plate 655, a trowelling driving cylinder 654 is mounted on the vertical connecting plate 656, and a piston rod of the trowelling driving cylinder 654 is connected with an adhesive tape trowelling compression wheel 651.
The following describes the specific actions of the back-end packaging device for disc-shaped chips of the present invention when taping:
The adhesive tape feeding mechanism drives the adhesive tape arranged on the adhesive tape feeding platform to feed, clamping and clamping are carried out through the clamping jaws, then the clamping jaws send the adhesive tape to the position of the supporting platform under the action of the clamping jaw sideslip sliding rail, the adhesive tape is close to the protective tape, then the first sideslip cylinder and the second sideslip cylinder of the adhesive tape pre-pasting mechanism are matched with each other, the adhesive tape is locally pressed and pasted on the protective tape wound on the disc-shaped chip, then the protective tape pressing mechanism descends, the adhesive tape trowelling and pressing wheel of the rotary trowelling mechanism is avoided, meanwhile, the clamping jaws return to the initial position to clamp the adhesive tape again, then the adhesive tape shearing tool of the adhesive tape shearing mechanism can shear the adhesive tape, the platform moving cylinder drives the moving platform to move and avoid the rotary trowelling mechanism, the protective tape pressing mechanism descends and avoids the rotary trowelling mechanism, and then the adhesive tape trowelling and pressing wheel is driven by the rotary driving device to roll the adhesive tape along the protective tape, the whole adhesive tape can be pasted on the protective tape, and the joint of the protective tape is sealed, so that the adhesive tape is pasted on the protective tape.
The rear end packaging device of the disc-shaped chip is high in automation degree, the protection belt is wound and the adhesive tape is pasted through equipment in the whole process, manual operation is not needed, the protection belt winding unit is arranged to feed the protection belt and wind the protection belt on the disc-shaped chip arranged on the supporting platform, the protection belt winding of the disc-shaped chip can be automatically realized, the adhesive tape pasting unit is used for pasting the protection belt on the protection belt to seal the joint of the protection belt after the protection belt is wound on the disc-shaped chip, the rear end packaging device of the disc-shaped chip can replace manual operation, the working efficiency is greatly improved, the labor cost is reduced, and the protection belt is wound through equipment, so that the winding tightness of the protection belt is consistent, the reliability is good, the adhesive tape pasting position is uniform, and the disc-shaped chip is tidier and attractive.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.