Feeding mechanism with simultaneous taking and different placing functions

Abstract

The utility model discloses a feeding mechanism with simultaneous taking and different placing functions. Comprising a bottom plate, a pick-and-place suction head, an asynchronous emptying mechanism and a vacuum pipeline, an asynchronous discharging mechanism is arranged on the bottom plate, the pick-and-place suction head is arranged on the asynchronous discharging mechanism and comprises a left suction head and a right suction head, the vacuum pipeline is connected with an external vacuum generator, an electromagnetic valve is arranged on the vacuum pipeline, and the electromagnetic valve is connected with the left suction head and the right suction head; the asynchronous discharging mechanism comprises a servo motor, a synchronous belt wheel mechanism, a sliding rail and a discharging unit, the servo motor, the synchronous belt wheel mechanism and the sliding rail are arranged on the bottom plate, the servo motor is connected with the synchronous belt wheel mechanism, the discharging unit is arranged on the sliding rail, and the discharging unit is connected with the synchronous belt wheel mechanism. The discharging units on the sliding rails on the two sides are connected with the corresponding left suction head and the corresponding right suction head to form a left discharging unit and a right discharging unit, and the left discharging unit and the right discharging unit are connected with the synchronous belt wheel mechanisms on the corresponding sides respectively. According to the feeding device, the material feeding efficiency is greatly improved.

Description

Technical Field:

[0001] The utility model belongs to the technical field of semiconductor packaging processes, and particularly relates to a same-picking and different-placing feeding mechanism. Background Art:

[0002] In semiconductor packaging processes, a suction mechanism is often used to feed materials such as chips, leads, and solder pads. Each time when feeding, the suction mechanism sucks a row of materials and places the row of materials on a lead frame to complete the feeding.

[0003] The existing suction mechanism can only suck a row of materials each time. The placement positions of each row of materials on the lead frame are spaced apart. The suction mechanism can only return to the material-taking position to suck the next row of materials after completing the feeding of one row of materials, and a large amount of time is spent on the round-trip journey of the suction mechanism, resulting in low feeding efficiency.

[0004] The information disclosed in this background art section is only intended to enhance the overall understanding of the utility model and should not be regarded as an admission or any form of implication that this information constitutes the prior art already known to those of ordinary skill in the art. Summary of the Utility Model:

[0005] The purpose of the utility model is to provide a same-picking and different-placing feeding mechanism to overcome the above-mentioned defects in the prior art.

[0006] To achieve the above purpose, the utility model provides a same-picking and different-placing feeding mechanism, which includes a bottom plate, a pick-and-place suction head, an asynchronous feeding mechanism, and a vacuum pipeline; the asynchronous feeding mechanism is arranged on the bottom plate, the pick-and-place suction head is arranged on the asynchronous feeding mechanism, the pick-and-place suction head includes a left suction head and a right suction head, the vacuum pipeline is connected to an external vacuum generator, a solenoid valve is arranged on the vacuum pipeline, and the solenoid valve is respectively connected to the left suction head and the right suction head; the asynchronous feeding mechanism includes a servo motor, a synchronous pulley mechanism, a slide rail, and a feeding unit. The servo motor and the synchronous pulley mechanism are arranged on the bottom plate, the slide rails are symmetrically arranged on the bottom plate on both sides of the synchronous pulley mechanism, the servo motor is connected to the synchronous pulley mechanism, the feeding unit is arranged on the slide rail, the feeding units on the two slide rails are respectively connected to the corresponding left suction head and right suction head to form a left feeding unit and a right feeding unit, the left feeding unit and the right feeding unit are respectively connected to the synchronous pulley mechanism on the corresponding side, and the left feeding unit and the right feeding unit are lifted in the reverse direction through the synchronous pulley mechanism.

[0007] Preferably, in the technical solution, the synchronous pulley mechanism includes a driving wheel, a driven wheel, and a synchronous belt. The driving wheel is connected to the servo motor, the driving wheel and the driven wheel are connected through the synchronous belt, and the synchronous belt is respectively connected to the left feeding unit and the right feeding unit on the two slide rails.

[0008] Preferably, in the technical solution, the feeding unit includes a slider, a connecting block, a fixed block, and a buffer mechanism. The slider is arranged on the slide rail, the slider is connected to the connecting block, a buffer mechanism is arranged on the connecting block, and the buffer mechanism is connected to the corresponding picking and placing suction head; a fixed block is arranged on the side of the connecting block facing the synchronous belt, there is a gap between the connecting block and the fixed block, the synchronous belt is passed through the gap, and the synchronous belt is connected to the fixed block; the left suction head and the right suction head are driven to lift by the synchronous belt.

[0009] Preferably, in the technical solution, the buffer mechanism includes a pressing block, a spring, a suction head seat, and a crossed roller guide. The pressing block and the crossed roller guide are arranged on the connecting block, the suction head seat is arranged on the crossed roller guide, the suction head seat is connected to the pressing block by a spring, and the corresponding picking and placing suction head is arranged on the suction head seat; the buffer mechanism is used to protect the material from being overly pressed during picking.

[0010] Preferably, in the technical solution, a fixing plate is arranged on the bottom plate, and a solenoid valve is arranged on the fixing plate.

[0011] Preferably, in the technical solution, a vacuum detection gauge is arranged on the bottom plate, and the vacuum detection gauge is connected to the solenoid valve through a pipeline for detecting the vacuum degree in the vacuum pipeline.

[0012] Preferably, in the technical solution, a photoelectric switch is arranged on the side of the bottom plate. The photoelectric switch is communicatively connected to the servo motor. The photoelectric switch is located at the origin of the movement track of the feeding unit, further improving the movement accuracy of the picking and placing suction head.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] Through the same-picking and different-placing feeding mechanism, two columns of materials can be picked at one time. When feeding, it cooperates with the lead frame and its power mechanism. The left feeding unit and the right feeding unit feed asynchronously to realize the feeding of two spaced columns of materials, greatly improving the efficiency of material feeding. Description of the drawings:

[0015] Figure 1 It is the front view of the same-picking and different-placing feeding mechanism of the present utility model;

[0016] Figure 2 It is the left view of the same-picking and different-placing feeding mechanism of the present utility model;

[0017] Figure 3 It is the three-dimensional view of the same-picking and different-placing feeding mechanism of the present utility model;

[0018] Figure 4 It is Figure 3 The enlarged view of part A of Specific embodiments:

[0019] The following is a detailed description of the specific embodiments of the present utility model, but it should be understood that the protection scope of the present utility model is not limited by the specific embodiments.

[0020] Unless otherwise clearly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "having" etc. will be understood to include the stated elements or components, without excluding other elements or other components.

[0021] As Figures 1-4 shown, a same-taking and different-placing feeding mechanism includes a bottom plate 1, a left suction head 2, a right suction head 3, an asynchronous discharging mechanism 4, and a vacuum pipeline (not shown); the asynchronous discharging mechanism 4 is arranged on the bottom plate 1, the left suction head 2 and the right suction head 3 are arranged on the asynchronous discharging mechanism 4, the vacuum pipeline is connected to an external vacuum generator, a solenoid valve 5 is arranged on the vacuum pipeline, and the solenoid valve 5 is respectively connected to the left suction head 2 and the right suction head 3; the same-taking and different-placing feeding mechanism is arranged on a manipulator (not shown).

[0022] The asynchronous discharging mechanism 4 includes a servo motor 40, a driving wheel 41, a driven wheel 42, a synchronous belt 43, a slide rail 44, and a discharging unit 45. The servo motor 40, the driving wheel 41, and the driven wheel 42 are arranged on the bottom plate 1. The driving wheel 41 is connected to the servo motor 40, and the driving wheel 41 and the driven wheel 42 are connected by the synchronous belt 43. The slide rails 44 are symmetrically arranged on the bottom plate 1 on both sides of the synchronous belt 43. The discharging unit 45 is arranged on the slide rail 44. The discharging units 45 on the two sides of the slide rails 44 are connected to the corresponding left suction head 2 and right suction head 3 to form a left discharging unit and a right discharging unit. The left discharging unit and the right discharging unit are respectively connected to the synchronous belt 43 on the corresponding side, and the left discharging unit and the right discharging unit are lifted and lowered in the opposite direction by the synchronous belt 43. A photoelectric switch 12 is arranged on the side of the bottom plate 1. The photoelectric switch 12 is communicatively connected to the servo motor 40. The photoelectric switch 12 is located at the origin of the moving track of the discharging unit 45, further improving the moving accuracy of the left suction head 2 and the right suction head 3.

[0023] The feeding unit 45 includes a slider 450, a connecting block 451, a fixed block 452, a pressing block 453, a spring 454, a suction head seat 455, and a crossed roller guide 456. The slider 450 is arranged on the slide rail 44. The slider 450 is connected to the connecting block 451. The connecting block 451 is provided with a pressing block 453 and a crossed roller guide 456. The suction head seat 455 is arranged on the crossed roller guide 456. The suction head seat 455 is connected to the pressing block 453 through the spring 454. Corresponding left suction heads 2 and right suction heads 3 are arranged on the suction head seat 455. The pressing block 453, the spring 454, the suction head seat 455, and the crossed roller guide 456 form a buffer mechanism to protect the material from being overly pressed during material picking. A fixed block 452 is arranged on one side of the connecting block 451 facing the synchronous belt 43. There is a gap between the connecting block 451 and the fixed block 452. The synchronous belt 43 passes through the gap and is connected to the fixed block 452. The left suction heads 2 and the right suction heads 3 are driven to move up and down by the synchronous belt 43.

[0024] A fixing plate 10 is arranged on the bottom plate 1, and a solenoid valve 5 is arranged on the fixing plate 10. A vacuum detection gauge 11 is arranged on the bottom plate 1. The vacuum detection gauge 11 is connected to the solenoid valve 5 through a pipeline for detecting the vacuum degree in the vacuum pipeline.

[0025] During the feeding process, the external vacuum generator is started. The left suction heads 2 and the right suction heads 3 pick up two columns of materials. The manipulator moves the left suction heads 2 and the right suction heads 3 above the lead frame. The servo motor 40 rotates clockwise, driving the synchronous belt 43 to rotate clockwise, driving the left suction heads 2 to rise and the right suction heads 3 to descend. The solenoid valve 5 connected to the right suction heads 3 breaks the vacuum. One column of materials adsorbed by the right suction heads 3 is fed to the designated position on the lead frame. The power mechanism of the lead frame drives the lead frame to move to the right. The left suction heads 2 are aligned with the next feeding position. The servo motor 40 rotates counterclockwise, driving the synchronous belt 43 to rotate counterclockwise, driving the left suction heads 2 to descend and the right suction heads 3 to rise. The solenoid valve 5 connected to the left suction heads 2 breaks the vacuum. One column of materials adsorbed by the left suction heads 2 is fed to the designated position on the lead frame, completing one material picking and feeding process. This process is repeated until the feeding of the lead frame is completed. Through the same-picking and different-feeding mechanism, two columns of materials can be picked at one time. During feeding, it cooperates with the lead frame and its power mechanism. The left feeding unit and the right feeding unit feed materials asynchronously, realizing the feeding of two spaced columns of materials, greatly improving the efficiency of material feeding.

[0026] The foregoing description of the specific exemplary embodiments of the present invention is for purposes of illustration and exemplification. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is apparent that many changes and variations are possible in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the present invention, as well as various different selections and changes. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A same-take-different-place feeding mechanism, characterized in that: It includes a bottom plate, a pick-up and placement suction head, an asynchronous discharge mechanism, and a vacuum pipeline; the bottom plate is provided with an asynchronous discharge mechanism, the pick-up and placement suction head is arranged on the asynchronous discharge mechanism, the pick-up and placement suction head includes a left suction head and a right suction head, the vacuum pipeline is connected to an external vacuum generator, and a solenoid valve is arranged on the vacuum pipeline, and the solenoid valve is respectively connected to the left suction head and the right suction head; the asynchronous discharge mechanism includes a servo motor, a synchronous pulley mechanism, a slide rail, and a discharge unit, the servo motor and the synchronous pulley mechanism are arranged on the bottom plate, the slide rails are symmetrically arranged on the bottom plate on both sides of the synchronous pulley mechanism, the servo motor is connected to the synchronous pulley mechanism, the discharge unit is arranged on the slide rail, the discharge units on the slide rails on both sides are connected with the corresponding left suction head and right suction head to form a left discharge unit and a right discharge unit, the left discharge unit and the right discharge unit are respectively connected to the synchronous pulley mechanism on the corresponding side, and the left discharge unit and the right discharge unit are reversely lifted and lowered through the synchronous pulley mechanism.

2. The same-take-different-place feeding mechanism according to claim 1, characterized in that: The synchronous pulley mechanism includes a driving wheel, a driven wheel, and a synchronous belt. The driving wheel is connected to the servo motor. The driving wheel and the driven wheel are connected by a synchronous belt. The synchronous belt is respectively connected to the left unloading unit and the right unloading unit on the slide rails on both sides.

3. The same-take-different-place feeding mechanism according to claim 2 is characterized in that: The discharge unit includes a slider, a connecting block, a fixed block, and a buffer mechanism. The slider is arranged on the slide rail, the slider is connected to the connecting block, the connecting block is provided with a buffer mechanism, and the buffer mechanism is connected to the corresponding pick-up and placement suction head; a fixed block is arranged on the side of the connecting block facing the synchronous belt, a gap is left between the connecting block and the fixed block, the synchronous belt is inserted in the gap, and the synchronous belt is connected to the fixed block; the left suction head and the right suction head are driven to rise and fall by the synchronous belt.

4. The same-take-different-place feeding mechanism according to claim 3 is characterized in that: The buffer mechanism includes a pressure block, a spring, a suction head seat, and a cross roller guide. The pressure block and the cross roller guide are arranged on the connecting block, and the suction head seat is arranged on the cross roller guide. The suction head seat and the pressure block are connected by a spring, and a corresponding pick-up and placement suction head is arranged on the suction head seat.

5. The same-take-different-place feeding mechanism according to claim 1, characterized in that: A fixing plate is arranged on the bottom plate, and a solenoid valve is arranged on the fixing plate.

6. The same-take-different-place feeding mechanism according to claim 1, characterized in that: A vacuum detection gauge is arranged on the bottom plate, and the vacuum detection gauge is connected with the electromagnetic valve through a pipeline.

7. The same-take-and-different-place feeding mechanism according to claim 1 is characterized in that: A photoelectric switch is arranged on the side of the bottom plate, the photoelectric switch is connected to the servo motor for communication, and the photoelectric switch is located at the origin of the moving track of the unloading unit.

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