Double pin wheel conveying carrier tape device

Abstract

The utility model relates to the field of conveying carrier tape, disclose a kind of double needle wheel conveying carrier tape device, including front section needle wheel assembly, track assembly and rear section needle wheel assembly, the front section needle wheel assembly includes motor connecting block, the front of motor connecting block is fixedly installed with servo motor one, the right side fixed connection of motor connecting block has needle wheel fixed block one, the needle wheel fixed block one is fixedly installed with speed reducer one, servo motor one is provided with synchronous belt assembly one, and servo motor one is connected with the input end transmission of speed reducer one by synchronous belt assembly one. In the utility model, through double needle wheel synchronous coordination mechanism, double needle wheel realizes bidirectional clamping type transmission to carrier tape, effectively inhibits the inertia shaking and rebound of carrier tape in the stretching, deformation and stopping stage in indexing process, provides stable platform without shaking for chip placement, significantly improves chip positioning accuracy and repeatability, and ensures that chip accurately falls into carrier tape pocket.

Description

Technical Field

[0001] This utility model relates to the field of conveyor belts, and in particular to a double needle wheel conveyor belt device. Background Technology

[0002] In the field of semiconductor packaging and testing, carrier tape delivery systems are core equipment for achieving precise chip transfer, packaging, and testing. As semiconductor technology develops towards higher integration and smaller size, the requirements for the accuracy, stability, and adaptability of carrier tape delivery in chip packaging are becoming increasingly stringent. The performance of this device directly affects chip packaging yield and production efficiency, and its optimization and upgrading are of great significance to the development of the semiconductor manufacturing industry.

[0003] In existing technologies, carrier tape conveying mostly adopts a single-pin wheel drive method, where a single servo motor and reducer drive the pin wheel to rotate, and intermittent transmission is achieved by the pin wheel teeth engaging with the carrier tape positioning holes. The carrier tape sequentially goes through processes such as chip placement, cover tape bonding, and heat sealing, relying on the pin wheel's own braking or servo motor braking to maintain the stopped position, thus completing the chip tape packaging.

[0004] However, the single-pinwheel drive structure relies on a single braking method to maintain position during the stopping phase. The carrier belt is prone to inertial vibration or rebound due to its own elasticity and the gap of the feeding system, which leads to a decrease in chip positioning accuracy and cannot meet the requirements of high-precision packaging. In severe cases, it may also cause chip placement misalignment and packaging failure. Therefore, a dual-pinwheel carrier belt conveyor device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a double needle wheel conveyor belt device, which aims to solve the problem that the carrier belt is prone to inertial shaking or rebound due to its own elasticity and the gap of the feeding system in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a double needle wheel conveyor belt device, comprising a front needle wheel assembly, a track assembly and a rear needle wheel assembly, wherein the front needle wheel assembly includes a motor connecting block, a servo motor is fixedly mounted on the front side of the motor connecting block, a needle wheel fixing block is fixedly connected to the right side of the motor connecting block, and a reducer is fixedly mounted on the needle wheel fixing block.

[0007] The servo motor is equipped with a synchronous belt assembly, and the servo motor is connected to the input end of the reducer via the synchronous belt assembly. The motor connection block is equipped with an adjustment block, and the output end of the reducer is fixedly fitted with a tape-tapping needle wheel.

[0008] As a further description of the above technical solution: a curved rail swing rod shaft is rotatably connected to the outer wall of the pinwheel fixing block, and a transition block is fixedly sleeved on the outer wall of the curved rail swing rod shaft, and a curved rail outer cover is fixedly connected to the transition block.

[0009] As a further description of the above technical solution: a linear slide rail is fixedly connected to the first needle wheel fixing block, a second needle wheel fixing block is fixedly connected to the top of the linear slide rail, and an adjustment block 2 is provided on the first needle wheel fixing block.

[0010] As a further description of the above technical solution: the track assembly includes a lower track fixing plate, which is fixedly connected to a motor connecting block. A tape track is fixedly connected to the top of the lower track fixing plate, and a track cover plate is fixedly connected to the tape track. A curved rail is fixedly connected to the right side of the lower track fixing plate.

[0011] As a further description of the above technical solution: a vision inspection component is fixedly installed on the top of the tape track, a heat sealing component is fixedly installed on the top of the tape track and is located to the right of the vision inspection component, a cover tape component is fixedly installed on the top of the tape track and is located to the right of the heat sealing component, and a chip pickup component is fixedly installed on the top of the tape track and is located to the right of the cover plate on the track.

[0012] As a further description of the above technical solution: the rear pinwheel assembly includes a motor mounting plate, which is located on the left side of the track fixing plate. A servo motor two is fixedly mounted on the front of the motor mounting plate, and a motor cover is fixedly connected to the back of the motor mounting plate. A pinwheel motor mounting seat is fixedly connected to the top of the motor mounting plate, and a reducer two is fixedly mounted on the pinwheel motor mounting seat. A synchronous belt assembly two is provided at the output end of the servo motor two. The servo motor two is connected to the input end of the reducer two through the synchronous belt assembly two. The rear pinwheel is fixedly sleeved at the output end of the reducer two.

[0013] As a further description of the above technical solution: a needle wheel stop block is fixedly installed on the front of the needle wheel motor mounting base, the rear needle wheel is located between the needle wheel stop block and the needle wheel motor mounting base, an inner needle wheel rail is fixedly installed on the front of the needle wheel motor mounting base, a heat-sealed lower rail is fixedly connected to the front of the inner needle wheel rail, a carrier belt cover plate is fixedly connected to the top of the inner needle wheel rail, a cover plate fixing seat is fixedly connected to the carrier belt cover plate, an adjusting side plate is fixedly connected to the back of the cover plate fixing seat, an adjusting base is fixedly connected to the back of the adjusting side plate, an adjusting top plate is fixedly connected to the top of the adjusting side plate, an adjusting bolt is provided on the top of the adjusting top plate, and the adjusting bolt passes through the adjusting top plate and is threadedly connected to the adjusting side plate.

[0014] As a further description of the above technical solution: an inductive proximity switch is fixedly installed at the bottom of the inner track of the needle wheel.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, through the synchronous coordination mechanism of the double needle wheel, the double needle wheel realizes bidirectional clamping transmission of the carrier tape, effectively suppressing the stretching, deformation and inertial jitter and rebound of the carrier tape during the indexing process and the stopping stage, providing a jitter-free stable platform for chip placement, significantly improving chip positioning accuracy and repeatability, and ensuring that the chip falls accurately into the carrier tape pocket.

[0017] 2. In this utility model, the double needle wheel structure disperses the meshing stress of the carrier belt to two points, avoiding local stress concentration caused by single needle wheel drive, reducing the risk of wear, deformation and cracking of the carrier belt positioning hole, extending the service life of the carrier belt, and reducing the inertial impact of individual components by sharing the load with the double wheels, supporting the high-speed and stable operation of the equipment and increasing the output per unit hour. Attached Figure Description

[0018] Figure 1 This is a front view of a double needle wheel conveyor belt device proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the front pinwheel assembly of a double pinwheel conveyor belt device proposed in this utility model;

[0020] Figure 3 This is an exploded view of the front pinwheel assembly of a double pinwheel conveyor belt device proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the track assembly of a double-needle wheel conveyor belt device proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the rear pinwheel assembly of a double pinwheel conveyor belt device proposed in this utility model;

[0023] Figure 6 This is an exploded view of the rear pinwheel assembly of a double pinwheel conveyor belt device proposed in this utility model.

[0024] Legend:

[0025] 1. Front pinwheel assembly; 11. Motor connecting block; 12. Servo motor one; 13. Pinwheel fixing block one; 14. Reducer one; 15. Synchronous belt assembly one; 16. Adjusting block one; 17. Tape needle wheel; 18. Curved rail outer cover; 19. Adapter block; 110. Curved rail swing arm shaft; 111. Linear slide rail; 112. Pinwheel fixing block two; 113. Adjusting block two; 2. Track assembly; 21. Lower track fixing plate; 22. Tape track; 23. Upper track cover plate; 24. Curved rail; 25. Vision inspection assembly; 26. Heat sealing assembly 27. Cover tape assembly; 28. Chip pickup assembly; 3. Rear pinwheel assembly; 31. Motor mounting plate; 32. Servo motor II; 33. Motor cover; 34. Pinwheel motor mounting base; 35. Reducer II; 36. Synchronous belt assembly II; 37. Rear pinwheel; 38. Pinwheel stop block; 39. Pinwheel inner rail; 310. Heat-sealed lower rail; 311. Carrier tape cover plate; 312. Cover plate fixing base; 313. Adjusting side plate; 314. Adjusting base; 315. Adjusting top plate; 316. Adjusting bolt; 317. Inductive proximity switch. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figure 1 - Figure 3This utility model provides an embodiment of a double-needle wheel conveyor belt device, comprising a front needle wheel assembly 1, a track assembly 2, and a rear needle wheel assembly 3. The front needle wheel assembly 1 includes a motor connecting block 11. A servo motor 12 is fixedly mounted on the front of the motor connecting block 11 to provide high-speed, precise rotational power to the taping needle wheels 17. A needle wheel fixing block 13 is fixedly connected to the right side of the motor connecting block 11. A reducer 14 is fixedly mounted on the needle wheel fixing block 13. A synchronous belt assembly 15 is provided on the servo motor 12. The servo motor 12 is connected to the input end of the reducer 14 via the synchronous belt assembly 15. An adjusting block 16 is provided on the motor connecting block 11 to maintain the synchronous belt assembly 15 at a suitable position. When tension is applied to ensure smooth transmission, the output end of reducer 14 is fixedly fitted with a tape-making needle wheel 17. The outer wall of the needle wheel fixing block 13 is rotatably connected to a curved rail swing arm shaft 110. The outer wall of the curved rail swing arm shaft 110 is fixedly fitted with a transition block 19. A curved rail outer cover 18 is fixedly connected to the transition block 19. The curved rail swing arm shaft 110 and the transition block 19 can quickly open the curved rail outer cover 18 to facilitate monitoring of abnormal conditions in the carrier belt feeding. A linear slide rail 111 is fixedly connected to the needle wheel fixing block 13. A needle wheel fixing block 2 112 is fixedly connected to the top of the linear slide rail 111. An adjustment block 2 113 is provided on the needle wheel fixing block 13, which can realize the position adjustment of the tape-making needle wheel 17 in the X direction to ensure that the tape-making needle wheel 17 is fully engaged with the carrier belt.

[0028] Reference Figure 4 The track assembly 2 includes a lower track fixing plate 21, which is fixedly connected to the motor connecting block 11. A tape tray 22 is fixedly connected to the top of the lower track fixing plate 21, and an upper track cover plate 23 is fixedly connected to the tape tray 22. A curved rail 24 is fixedly connected to the right side of the lower track fixing plate 21. A vision inspection component 25 is fixedly installed on the top of the tape tray 22. A heat sealing component 26 is fixedly installed on the top of the tape tray 22, and the heat sealing component 26 is located to the right of the vision inspection component 25. A cover tape component 27 is fixedly installed on the top of the tape tray 22, and the cover tape component 27 is located to the right of the heat sealing component 26. A chip pickup component 28 is fixedly installed on the top of the tape tray 22, and the chip pickup component 28 is located to the right of the upper track cover plate 23. The carrier tape sequentially completes a series of key processes such as chip feeding, vision positioning, cover tape bonding, heat sealing and encapsulation, and visual inspection of tape quality.

[0029] Reference Figure 5 - Figure 6The rear pinwheel assembly 3 includes a motor mounting plate 31, which is located on the left side of the track fixing plate 21, allowing for Z-axis position adjustment of the rear pinwheel 37. A servo motor 32 is fixedly mounted on the front of the motor mounting plate 31, and a motor cover 33 is fixedly connected to the back of the motor mounting plate 31. A pinwheel motor mounting seat 34 is fixedly connected to the top of the motor mounting plate 31, and a reducer 35 is fixedly mounted on the pinwheel motor mounting seat 34. A synchronous belt assembly 36 is provided at the output end of the servo motor 32, and the servo motor 32 is connected to the input end of the reducer 35 through the synchronous belt assembly 36. The rear pinwheel 37 is fixedly sleeved at the output end of the reducer 35, and a pinwheel stop 38 is fixedly mounted on the front of the pinwheel motor mounting seat 34. Between the needle wheel stop 38 and the needle wheel motor mounting base 34, an inner needle wheel rail 39 is fixedly installed on the front of the needle wheel motor mounting base 34. A heat-sealed lower rail 310 is fixedly connected to the front of the inner needle wheel rail 39. A carrier tape cover plate 311 is fixedly connected to the top of the inner needle wheel rail 39. A cover plate fixing seat 312 is fixedly connected to the cover plate cover plate 311. An adjusting side plate 313 is fixedly connected to the back of the cover plate fixing seat 312. An adjusting base 314 is fixedly connected to the back of the adjusting side plate 313. An adjusting top plate 315 is fixedly connected to the top of the adjusting side plate 313. An adjusting bolt 316 is provided on the top of the adjusting top plate 315. The adjusting bolt 316 passes through the adjusting top plate 315 and is threadedly connected to the adjusting side plate 313. The adjusting base 314 and the like can adjust the X-axis position of the rear needle wheel 37. An inductive proximity switch 317 is fixedly installed at the bottom of the inner needle wheel rail 39.

[0030] Working principle: The servo motor 12 is started, transmitting power to the reducer 14 via the synchronous belt assembly 15. After reduction, the reducer drives the taping needle wheel 17 to rotate. The adjusting block 16 on the motor connecting block 11 adjusts the tension of the synchronous belt assembly 15, ensuring smooth transmission. The linear slide rail 111 on the needle wheel fixing block 13 cooperates with the adjusting block 113 to move the needle wheel fixing block 112, achieving position adjustment of the taping needle wheel 17 in the X-axis direction. This ensures precise engagement with the carrier belt positioning hole. Driven by the taping needle wheel 17 and limited by the curved rail 24 connected to the right side of the track fixing plate 21 in the track assembly 2, the carrier belt smoothly enters the track assembly 2. After the carrier tape is mounted on the top of the track fixing plate 21, it is transported along the tape tray 22. The track cover plate 23 guides and protects the carrier tape. The chip pickup component 28 on the right side of the track cover plate 23 places the chip onto the tape tray 22 for transport. The cover tape component 27 releases the cover tape to cover the surface of the carrier tape. The heat sealing component 26 heat seals the cover tape and the carrier tape to achieve chip sealing and fixation. Finally, the chip positioning accuracy and carrier tape status are detected by the vision inspection component 25. At the same time, the servo motor 22 starts and transmits power to the reducer 25 through the synchronous belt component 26, driving the rear pin wheel 37 at the output end of the reducer 25 to rotate. The rear needle wheel 37 rotates synchronously with the front braiding needle wheel 17, forming a dual-drive coordinated drive. The needle wheel stop 38 restricts the rear needle wheel 37 between itself and the needle wheel motor mounting base 34 to prevent misalignment. The adjusting bolts 316 on the adjusting base 314, adjusting side plate 313, and adjusting top plate 315 can be used to adjust the X-axis position of the rear needle wheel 37. The motor mounting plate 31 can adjust the Z-axis position of the rear needle wheel 37 to ensure that the two needle wheels are horizontally aligned. At the same time, the inductive proximity switch 317 fixed at the bottom of the inner track 39 of the needle wheel monitors the height between the carrier tape cover plate 311 and the track in real time to avoid the carrier tape jamming or wear due to height deviation. The inner track 39 of the needle wheel is connected to the front. The heat-sealing lower track 310 cooperates with the heat-sealing component 26 of the track assembly 2 to ensure the stable operation of the heat-sealing process. The carrier tape cover plate 311 is connected to the inner track 39 of the pin wheel through the cover plate fixing seat 312 to further protect the carrier tape. The carrier tape continuously completes the transmission and packaging process under the coordinated drive of the dual pin wheels. The curved rail outer cover 18 of the front pin wheel assembly 1 can be quickly opened through the curved rail swing arm shaft 110, which makes it convenient for the staff to deal with the carrier tape feeding jam or deviation in time. The dual pin wheels disperse the stress at the meshing point of the carrier tape and reduce the wear of the carrier tape. The motor cover 33 on the back of the motor mounting plate 31 protects the servo motor 32, and finally realizes high-speed, accurate and stable tape packaging of the chip.

[0031] It is worth noting that in this embodiment, the electrical equipment is a common device in the prior art, and the model used can be customized according to actual usage requirements. The power supply interface of the electrical equipment in this utility model is connected to the power supply system through a switch (not shown in the figure) and a wire (not shown in the figure) to realize its control. The circuits and controls involved are all prior art and are known in the current field, so they will not be described in detail here.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-pinwheel conveyor belt device, comprising a front pinwheel assembly (1), a track assembly (2), and a rear pinwheel assembly (3), characterized in that: The front pinwheel assembly (1) includes a motor connecting block (11), a servo motor (12) is fixedly installed on the front of the motor connecting block (11), a pinwheel fixing block (13) is fixedly connected to the right side of the motor connecting block (11), and a reducer (14) is fixedly installed on the pinwheel fixing block (13). The servo motor (12) is provided with a synchronous belt assembly (15). The servo motor (12) is connected to the input end of the reducer (14) via the synchronous belt assembly (15). The motor connecting block (11) is provided with an adjusting block (16). The output end of the reducer (14) is fixedly fitted with a tape-tapping needle wheel (17).

2. The double needle wheel conveyor belt device according to claim 1, characterized in that: The outer wall of the pinwheel fixing block (13) is rotatably connected to the curved rail swing rod shaft (110), and the outer wall of the curved rail swing rod shaft (110) is fixedly fitted with a transition block (19), and the transition block (19) is fixedly connected with a curved rail cover (18).

3. The double needle wheel conveyor belt device according to claim 2, characterized in that: A linear slide rail (111) is fixedly connected to the first pin wheel fixing block (13), and a second pin wheel fixing block (112) is fixedly connected to the top of the linear slide rail (111). An adjustment block (113) is provided on the first pin wheel fixing block (13).

4. The double needle wheel conveyor belt device according to claim 1, characterized in that: The track assembly (2) includes a lower track fixing plate (21), which is fixedly connected to a motor connecting block (11). A tape track (22) is fixedly connected to the top of the lower track fixing plate (21), and a track cover plate (23) is fixedly connected to the tape track (22). A curved rail (24) is fixedly connected to the right side of the lower track fixing plate (21).

5. A double-needle wheel conveyor belt device according to claim 4, characterized in that: A vision inspection component (25) is fixedly installed on the top of the tape track (22), a heat sealing component (26) is fixedly installed on the top of the tape track (22), and the heat sealing component (26) is located to the right of the vision inspection component (25). A cover tape component (27) is fixedly installed on the top of the tape track (22), and the cover tape component (27) is located to the right of the heat sealing component (26). A chip pickup component (28) is fixedly installed on the top of the tape track (22), and the chip pickup component (28) is located to the right of the track cover plate (23).

6. A double-needle wheel conveyor belt device according to claim 4, characterized in that: The rear pinwheel assembly (3) includes a motor mounting plate (31), which is located on the left side of the track fixing plate (21). A servo motor (32) is fixedly mounted on the front of the motor mounting plate (31), and a motor cover (33) is fixedly connected to the back of the motor mounting plate (31). A pinwheel motor mounting seat (34) is fixedly connected to the top of the motor mounting plate (31). A reducer (35) is fixedly mounted on the pinwheel motor mounting seat (34). A synchronous belt assembly (36) is provided at the output end of the servo motor (32). The servo motor (32) is connected to the input end of the reducer (35) through the synchronous belt assembly (36). The rear pinwheel (37) is fixedly sleeved at the output end of the reducer (35).

7. A double-needle wheel conveyor belt device according to claim 6, characterized in that: A needle wheel stop (38) is fixedly installed on the front of the needle wheel motor mounting base (34). The rear needle wheel (37) is located between the needle wheel stop (38) and the needle wheel motor mounting base (34). A needle wheel inner rail (39) is fixedly installed on the front of the needle wheel motor mounting base (34). A heat-sealed lower rail (310) is fixedly connected to the front of the needle wheel inner rail (39). A carrier tape cover plate (311) is fixedly connected to the top of the needle wheel inner rail (39). A carrier tape cover plate (311) is fixed on the carrier tape cover plate (311). A cover plate fixing seat (312) is fixedly connected to the back of the cover plate fixing seat (312), an adjusting side plate (313) is fixedly connected to the back of the adjusting side plate (313), an adjusting base (314) is fixedly connected to the back of the adjusting side plate (313), an adjusting top plate (315) is fixedly connected to the top of the adjusting side plate (313), and an adjusting bolt (316) is provided on the top of the adjusting top plate (315). The adjusting bolt (316) passes through the adjusting top plate (315) and is threadedly connected to the adjusting side plate (313).

8. A double-needle wheel conveyor belt device according to claim 7, characterized in that: An inductive proximity switch (317) is fixedly installed at the bottom of the inner track (39) of the pinwheel.

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