A guiding and slitting device for electronic carrier tape

Abstract

This invention discloses a guiding and slitting device for electronic carrier tape, aiming to solve the shortcomings of easy damage to cutting tools and poor cutting effect during the cutting process of electronic carrier tape. The invention includes: a slitting unit comprising a support roller and a plurality of cutting blades spaced apart and resting against the support roller; and a guiding unit comprising a support and a guide roller, with a guide groove provided on the support and the guide roller rotatably mounted at the guide groove. The electronic carrier tape is first guided between the guide groove and the guide roller, and then slid between the support roller and the cutting blades. The guiding and slitting device for electronic carrier tape of this patent application ensures the quality of the slitting end face of the electronic carrier tape, is less likely to damage the cutting blade during the slitting process, and the guiding unit provides stable and reliable guidance for the electronic carrier tape.

Description

Technical Field

[0001] This invention relates to the field of semiconductor technology, and more specifically, to a guiding and slitting device for electronic carrier tape. Background Technology

[0002] Electronic carrier tape is a strip-shaped product used to hold electronic components. A cover tape is sealed on top of the electronic carrier tape to form a closed package, protecting the electronic components from contamination and damage during transportation. The electronic carrier tape manufacturing process requires slitting. Existing slitting methods require grooves at corresponding positions on the cutter. If the grooves are too large, it can lead to poor cut surface quality; if the grooves are too small, it can damage the cutter. Electronic carrier tape often requires guidance during slitting, but existing guiding devices are not very stable, causing the electronic carrier tape to wobble from side to side. Summary of the Invention

[0003] To overcome the above shortcomings, the present invention provides a guiding and slitting device for electronic carrier tape, which has good slitting end face quality, is not easy to damage the cutter, and provides stable and reliable guidance for electronic carrier tape during the slitting process.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a guiding and slitting device for electronic carrier tape, comprising:

[0005] The slitting unit includes a support roller and several cutting blades, which are spaced apart and rest against the support roller.

[0006] The guiding unit includes a support and a guide roller. A guide groove is provided on the support, and the guide roller is rotatably mounted on the guide groove.

[0007] The electronic carrier belt is first guided between the guide groove and the guide roller, and then cut between the support roller and the cutting blade.

[0008] During the electronic carrier tape slitting operation, the electronic carrier tape is first passed between the guide groove and the guide roller. The guide roller prevents the electronic carrier tape from tilting, and the guide groove guides and positions the electronic carrier tape. Then, the electronic carrier tape passes between the cutting blade and the support roller. The support roller supports the electronic carrier tape, and its rotation conveys the electronic carrier tape. Simultaneously, the cutting blade adheres to the surface of the pressure roller to cut the electronic carrier tape. The support roller surface does not require grooves; the cutting blade directly adheres to the support roller surface, eliminating the possibility of grooves damaging the blade. Furthermore, the smooth surface of the support roller ensures the quality of the cut end face of the product.

[0009] The electronic carrier tape guiding and slitting device of this patent application ensures the quality of the electronic carrier tape slitting end face, the slitting process is not prone to damage to the cutter, and the guiding unit guides the electronic carrier tape smoothly and reliably.

[0010] Preferably, an adhesive strip is installed inside the guide groove, and a pre-tension spring is installed between the adhesive strip and one side of the guide groove. The two sides of the electronic carrier tape are respectively attached to the other side of the guide groove and the adhesive strip.

[0011] The bonding strip and pre-tension spring ensure zero gap between the two sides of the electronic carrier belt, preventing it from swaying left and right during transport and thus guaranteeing guiding accuracy.

[0012] Preferably, an adjusting rod is threaded onto the side wall of the guide groove, and the adjusting rod and the pre-tightening spring are correspondingly arranged, with the pre-tightening spring abutting between the adjusting rod and the bonding strip.

[0013] Rotating the adjusting rod adjusts the tension of the pre-tension spring, which is then transmitted to the bonding strip, thus limiting the left and right swing of the electronic carrier tape. Under the action of the pre-tension spring, the bonding strip remains in contact with the side of the electronic carrier tape, thereby achieving zero-gap positioning.

[0014] Preferably, side plates are provided on both sides of the support roller, and a drive shaft is rotatably installed between the two side plates, with the support roller mounted on the drive shaft.

[0015] The drive shaft is powered by an external force, which in turn drives the support rollers. The drive shaft is mounted between the two side plates, ensuring smooth and reliable rotation.

[0016] Preferably, side plates are provided on both sides of the support roller, and a connecting shaft is installed between the two side plates. Several cutting blades are mounted on the connecting shaft, and an isolation sleeve is installed between adjacent cutting blades.

[0017] The isolation sleeve separates the cutting blades, enabling the cutting of electronic carrier tape of a certain width.

[0018] Preferably, eccentric shafts are provided at both ends of the connecting shaft, and the two eccentric shafts are rotatably mounted on the two side plates respectively.

[0019] During installation, rotate the eccentric shaft to lift the connecting shaft upwards, then install the cutting blade onto the connecting shaft to avoid interference between the cutting blade and the support roller during installation. After installation, reverse the eccentric shaft to make the cutting blade fit against the surface of the support roller, and lock the eccentric shaft after it has rotated to the correct position.

[0020] Preferably, a locking seat is provided on the side plate and corresponding to the eccentric shaft, a locking groove is provided on the locking seat, a locking sleeve is fitted on the eccentric shaft, the locking sleeve can move axially, the outer wall of the locking sleeve can be circumferentially locked with the inner wall of the locking groove, and the inner wall of the locking sleeve can be circumferentially locked with the outer wall of the eccentric shaft.

[0021] Before the eccentric shaft rotates, the locking sleeve moves axially to allow the outer wall of the locking sleeve to circumferentially unlock from the inner wall of the locking groove. After the locking sleeve and the eccentric shaft rotate into position together, the cutting blade is installed. After installation, the locking sleeve and the eccentric shaft rotate in the opposite direction to return to their original positions. Then, the locking sleeve moves axially back to its original position so that the outer wall of the locking sleeve can circumferentially lock to the inner wall of the locking groove. At this time, the eccentric shaft is locked on the side plate.

[0022] Preferably, the connecting shaft includes a bushing, a shaft body, and an adjusting sleeve. The bushing is rotatably mounted on the outer wall of the shaft body, and the adjusting sleeve is mounted on the outer wall of the bushing. The cutting blade and the isolation sleeve are both mounted on the outer wall of the adjusting sleeve. Several locking rods are installed on the bushing, and the cutting blade and the isolation sleeve are inserted into the locking rods. The isolation sleeve includes a fixed sleeve and a movable sleeve. A pushing ring is installed between the fixed sleeve and the movable sleeve. Several circumferentially inclined pushing surfaces are evenly distributed on the end face of the pushing ring. A contact surface is provided on the end face of the movable sleeve corresponding to the pushing surfaces. The pushing surfaces and the contact surfaces are in contact with each other. The pushing ring is mounted on the adjusting sleeve, and the pushing ring can move axially along the adjusting sleeve. The pushing ring and the adjusting sleeve are circumferentially locked.

[0023] In practical use, the device needs to cut electronic carrier tapes of different slitting widths. This requires adjusting the distance between adjacent cutting blades. Traditionally, this involves disassembling the cutting blades and isolation sleeves from the connecting shaft and replacing them with isolation sleeves of different thicknesses to meet the required slitting width. However, in this application, adjusting the distance between adjacent cutting blades does not require disassembling the cutting blades and isolation sleeves from the connecting shaft. During the adjustment operation, the locking lever is unlocked, and the adjusting sleeve is rotated. This causes the pushing ring to move the movable sleeve through the cooperation of the pushing surface and the contact surface, thereby adjusting the axial thickness of the isolation sleeve and thus adjusting the distance between adjacent cutting blades. After the distance is adjusted, the locking lever is locked. Since both the cutting blades and isolation sleeves are inserted into the locking lever, neither the cutting blades nor the isolation sleeves will rotate while the pushing ring and adjusting sleeve rotate together. The pushing ring can move axially along the adjusting sleeve, so during the rotation of the adjusting sleeve, the cutting blades, movable sleeve, fixed sleeve, and pushing ring can all move axially along the adjusting sleeve, preventing jamming. This structure allows for easy operation without removing the cutting blades and isolation sleeves from the connecting shaft when adjusting the spacing between two adjacent cutting blades.

[0024] Preferably, a movable seat is fitted on the outer wall of the adjusting sleeve, a fixed seat is provided on the bushing, a locking rod passes through the movable seat, a fastening nut is connected to the locking rod, the fastening nut abuts against the movable seat, and the cutting blade and the isolation sleeve are both clamped between the fixed seat and the movable seat.

[0025] The fixed and movable seats ensure reliable clamping of the cutting blade. The fastening nut facilitates locking the movable seat.

[0026] Preferably, a shoulder is provided on the bushing, an end cover is fitted on the outer wall of the bushing, the end cover abuts against the shoulder, the end cover and the locking rod are fastened together, and one end of the adjusting sleeve abuts against the end cover.

[0027] The end cap design improves the stability of the entire connecting shaft during the cutting process.

[0028] Compared with the prior art, the beneficial effects of the present invention are: (1) The electronic carrier tape guiding and slitting device of the present patent application ensures the quality of the electronic carrier tape slitting end face, the slitting process is not easy to damage the cutting blade, and the guiding unit guides the electronic carrier tape smoothly and reliably; (2) The spacing adjustment operation between two adjacent cutting blades is convenient. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the slitting unit of the present invention;

[0031] Figure 3 This is a top view of the present invention;

[0032] Figure 4 This is the invention Figure 3 AA section view;

[0033] Figure 5 This is a schematic diagram of the connection between the eccentric shaft and the locking seat of the present invention;

[0034] Figure 6 This is a schematic diagram of the cutting blade mounting structure of Embodiment 2 of the present invention;

[0035] In the diagram: 1. Slitting unit, 2. Support roller, 3. Cutting blade, 4. Guide unit, 5. Support, 6. Guide roller, 7. Guide groove, 8. Electronic carrier belt, 9. Side plate, 10. Base, 11. Drive shaft, 12. Connecting shaft, 13. Isolation sleeve, 14. Eccentric shaft, 15. Locking seat, 16. Locking groove, 17. Limiting groove, 18. Locking sleeve, 19. Outer protrusion, 20. Locking notch, 21. Inner protrusion, 22. 23. Adhesive strip, 24. Pre-tightening spring, 25. Adjusting rod, 26. Guide rod, 27. Connecting strip, 28. Bushing, 29. Shaft body, 30. Adjusting rotating sleeve, 31. Locking rod, 32. Fixed sleeve, 33. Movable sleeve, 34. Push ring, 35. Anti-rotation groove, 36. Connecting rib, 37. Anti-rotation protrusion, 38. Protruding ring, 39. Ring groove, 40. Movable seat, 41. Fixed seat, 42. Fastening nut, 43. End cap. Detailed Implementation

[0036] The technical solution of the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0037] Example 1: A guiding and slitting device for electronic carrier tape (see attached) Figure 1 To be continued Figure 5 ),include:

[0038] The slitting unit 1 includes a support roller 2 and several cutting blades 3. The cutting blades are spaced apart and abut against the support roller. The support roller is made of ABS material. ABS is an abbreviation for Acrylonitrile Butadiene Styrene, which refers to acrylonitrile-butadiene-styrene copolymer. It is a thermoplastic polymer structural material with high strength, good toughness, and easy processing and molding, also known as ABS resin.

[0039] Guide unit 4, the guide unit includes support 5 and guide roller 6, several guide rollers are arranged at intervals, guide groove 7 is provided on support, and guide rollers are rotatably installed at guide groove;

[0040] The electronic carrier belt 8 is first guided between the guide groove and the guide roller, and then cut between the support roller and the cutting blade.

[0041] Side plates 9 are provided on both sides of the support roller, and a base 10 is provided below the side plates. The side plates and supports are connected to the base. A drive shaft 11 is rotatably installed between the two side plates. The support roller is mounted on the drive shaft, which is driven by an external power source. A connecting shaft 12 is installed between the two side plates, and the connecting shaft is located above the drive shaft. Several cutting blades are mounted on the connecting shaft, and an isolation sleeve 13 is installed between each adjacent cutting blade. Two positioning seats are installed on the connecting shaft, and the cutting blades and isolation sleeves are clamped between the two positioning seats. In this embodiment, four cutting blades are provided, and the cutting blades have an annular plate structure. Eccentric shafts 14 are provided at both ends of the connecting shaft. The two eccentric shafts are rotatably mounted on the two side plates respectively. Locking seats 15 are provided on the side plates corresponding to the eccentric shafts. Locking grooves 16 are provided on the locking seats. Limiting grooves 17 are provided on the side walls of the locking grooves. Locking sleeves 18 are movably mounted on the eccentric shafts. The locking sleeves can move axially. Outer protrusions 19 that match the limiting grooves are provided on the outer walls of the locking sleeves. The outer walls of the locking sleeves can be circumferentially locked with the inner walls of the locking grooves. Locking notches 20 are provided on the outer walls of the eccentric shafts. Inner protrusions 21 that match the locking notches are provided on the inner walls of the locking sleeves. The inner walls of the locking sleeves can be circumferentially locked with the outer walls of the eccentric shafts.

[0042] An adhesive strip 22 is installed inside the guide groove. A pre-tension spring 23 is installed between the adhesive strip and one side of the guide groove. The two sides of the electronic carrier tape are respectively attached to the other side of the guide groove and the adhesive strip. An adjusting rod 24 is threaded onto the side wall of the guide groove. The adjusting rod and the pre-tension spring are correspondingly arranged, and the pre-tension spring abuts against the adjusting rod and the adhesive strip. A guide rod 25 is connected to the adhesive strip and is movably inserted into the side wall of the guide groove. Connecting strips 26 are provided on both sides of the guide groove on the support. The two ends of the guide roller are rotatably mounted on the two connecting strips respectively.

[0043] During the electronic carrier tape slitting operation, the electronic carrier tape is first passed between the guide groove and the guide roller. The guide roller prevents the electronic carrier tape from tilting, and the guide groove guides and positions the electronic carrier tape. Then, the electronic carrier tape passes between the cutting blade and the support roller. The support roller supports the electronic carrier tape, and its rotation conveys the electronic carrier tape. Simultaneously, the cutting blade adheres to the surface of the pressure roller to cut the electronic carrier tape. The support roller surface does not require grooves; the cutting blade directly adheres to the support roller surface, eliminating the possibility of grooves damaging the blade. Furthermore, the smooth surface of the support roller ensures the quality of the cut end face of the product.

[0044] Example 2: A guiding and slitting device for electronic carrier tape (see attached) Figure 6 Its structure is similar to that of Embodiment 1, the main difference being that the connecting shaft in this embodiment includes a bushing 27, a shaft body 28, and an adjusting sleeve 29. The bushing is rotatably fitted onto the outer wall of the shaft body, the adjusting sleeve is fitted onto the outer wall of the bushing, and the cutting blade and the isolation sleeve are both fitted onto the outer wall of the adjusting sleeve. Several locking rods 30 are installed on the bushing, with four locking rods evenly distributed. The cutting blade and the isolation sleeve are both inserted and connected to the locking rods. The isolation sleeve includes a fixed sleeve 31 and a movable sleeve 32. A pushing ring 33 is installed between the fixed sleeve and the movable sleeve. Several circumferentially inclined pushing surfaces are evenly distributed on the end face of the pushing ring. A contact surface is provided on the end face of the movable sleeve corresponding to the pushing surface. The pushing surface and the contact surface are in contact with each other. The pushing ring is fitted onto the adjusting sleeve, and the pushing ring can move axially along the adjusting sleeve. The pushing ring and the adjusting sleeve are circumferentially locked. An anti-rotation groove 34 is provided on the outer wall of the adjusting sleeve, and the anti-rotation groove is parallel to the axis of the adjusting sleeve. The pushing ring includes an inner ring and an outer ring, and several connecting ribs 35 are evenly distributed between the inner ring and the outer ring. The inner ring is fitted onto the adjusting sleeve, and an anti-rotation protrusion 36 is provided on the inner wall of the inner ring, which is adapted to the anti-rotation groove. The pushing surface is provided on the outer ring. A protruding ring 37 is provided on the end face of the movable sleeve, and an annular groove 38 is provided on the fixed sleeve, with the protruding ring and the annular groove being fitted together.

[0045] A movable seat 39 is fitted onto the outer wall of the adjusting sleeve, and a fixed seat 40 is provided on the bushing. One end of the locking rod is connected to the fixed seat, and the locking rod passes through the movable seat. A fastening sleeve 41 is connected to the locking rod, and the fastening sleeve abuts against the movable seat. The cutting blade and the isolation sleeve are both clamped between the fixed seat and the movable seat. A shoulder is provided on the bushing, and an end cap 42 is fitted onto the outer wall of the bushing. The end cap abuts against the shoulder, and the end cap and the locking rod are fastened together by a nut. One end of the adjusting sleeve abuts against the end cap. A locking screw is connected to the adjusting sleeve, and the end of the locking screw abuts against the bushing to achieve locking. When it is necessary to rotate the adjusting sleeve, the locking screw is loosened to release the lock. Other structures are the same as in Embodiment 1.

[0046] In practical use, the device needs to cut electronic carrier tapes of different slitting widths. This requires adjusting the distance between adjacent cutting blades. Traditionally, this involves disassembling the cutting blades and isolation sleeves from the connecting shaft and replacing them with isolation sleeves of different thicknesses to meet the required slitting width. However, in this application, adjusting the distance between adjacent cutting blades does not require disassembling the cutting blades and isolation sleeves from the connecting shaft. During the adjustment operation, the locking lever is unlocked, and the adjusting sleeve is rotated. This causes the pushing ring to move the movable sleeve through the cooperation of the pushing surface and the contact surface, thereby adjusting the axial thickness of the isolation sleeve and thus adjusting the distance between adjacent cutting blades. After the distance is adjusted, the locking lever is locked. Since both the cutting blades and isolation sleeves are inserted into the locking lever, neither the cutting blades nor the isolation sleeves will rotate while the pushing ring and adjusting sleeve rotate together. The pushing ring can move axially along the adjusting sleeve, so during the rotation of the adjusting sleeve, the cutting blades, movable sleeve, fixed sleeve, and pushing ring can all move axially along the adjusting sleeve, preventing jamming. This structure allows for easy operation without removing the cutting blades and isolation sleeves from the connecting shaft when adjusting the spacing between two adjacent cutting blades.

[0047] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Other variations and modifications may be made without departing from the technical solutions described in the claims.

Claims

1. A guiding and slitting device for electronic carrier tape, characterized in that, include: The slitting unit includes a support roller and several cutting blades, which are spaced apart and rest against the support roller. The guiding unit includes a support and a guide roller. A guide groove is provided on the support, and the guide roller is rotatably mounted on the guide groove. The electronic carrier tape is first guided between the guide groove and the guide roller, and then cut between the support roller and the cutting blade; Side plates are provided on both sides of the support roller, and a connecting shaft is installed between the two side plates. Several cutting blades are mounted on the connecting shaft, and an isolation sleeve is installed between each adjacent cutting blade. The connecting shaft includes a bushing, a shaft body, and an adjusting rotating sleeve. The bushing is rotatably mounted on the outer wall of the shaft body, and the adjusting rotating sleeve is mounted on the outer wall of the bushing. The cutting blades and isolation sleeves are both mounted on the outer wall of the adjusting rotating sleeve. Several locking rods are installed on the bushing, and the cutting blades and isolation sleeves are inserted into the locking rods. The isolation sleeve includes a fixed sleeve and a movable sleeve. A pushing ring is installed between the fixed sleeve and the movable sleeve. Several circumferentially inclined pushing surfaces are evenly distributed on the end face of the pushing ring. The end face of the movable sleeve is provided with a corresponding contact surface to the pushing surface. The pushing surface and the contact surface are in contact with each other. The pushing ring is mounted on the adjusting rotating sleeve, and the pushing ring can move axially along the adjusting rotating sleeve. The pushing ring and the adjusting rotating sleeve are circumferentially locked.

2. The guiding and slitting device for electronic carrier tape according to claim 1, characterized in that, An adhesive strip is installed inside the guide groove, and a pre-tension spring is installed between the adhesive strip and one side of the guide groove. The two sides of the electronic carrier tape are respectively attached to the other side of the guide groove and the adhesive strip.

3. The guiding and slitting device for electronic carrier tape according to claim 2, characterized in that, An adjusting rod is threaded onto the side wall of the guide groove. The adjusting rod and the pre-tightening spring are correspondingly set, and the pre-tightening spring abuts against the adjusting rod and the bonding strip.

4. The guiding and slitting device for electronic carrier tape according to claim 1, characterized in that, Side plates are provided on both sides of the support roller, and a drive shaft is rotatably installed between the two side plates. The support roller is mounted on the drive shaft.

5. The guiding and slitting device for electronic carrier tape according to claim 1, characterized in that, Eccentric shafts are provided at both ends of the connecting shaft, and the two eccentric shafts are rotatably mounted on the two side plates respectively.

6. The guiding and slitting device for electronic carrier tape according to claim 5, characterized in that, A locking seat is provided on the side plate corresponding to the eccentric shaft. A locking groove is provided on the locking seat. A locking sleeve is fitted on the eccentric shaft. The locking sleeve can move axially. The outer wall of the locking sleeve can be circumferentially locked with the inner wall of the locking groove. The inner wall of the locking sleeve can be circumferentially locked with the outer wall of the eccentric shaft.

7. The guiding and slitting device for electronic carrier tape according to claim 6, characterized in that, Adjust the movable seat on the outer wall of the rotating sleeve, and set the fixed seat on the bushing. The locking rod passes through the movable seat, and the locking rod is connected to the fastening nut. The fastening nut abuts against the movable seat, and the cutting blade and the isolation sleeve are clamped between the fixed seat and the movable seat.

8. The guiding and slitting device for electronic carrier tape according to claim 6, characterized in that, A shoulder is provided on the bushing, and an end cover is fitted on the outer wall of the bushing. The end cover is abutted against the shoulder, and the end cover and the locking rod are fastened together. One end of the adjusting sleeve is abutted against the end cover.

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