Surface powder cleaning device for silicon controlled rectifier chip processing

Abstract

The utility model relates to the technical field of silicon controlled rectifier chip processing, particularly discloses a surface powder cleaning device for silicon controlled rectifier chip processing, and aims to solve the problem of poor cleaning effect on the surface of a silicon chip in the prior art. The supporting frame is fixedly connected with the base, a motor is fixedly connected to the side face of the supporting frame, two first transmission rods are rotationally connected to the supporting frame, an output shaft of the motor is fixedly connected with one of the two first transmission rods, two third transmission rods are rotationally connected to the supporting frame, and the output shaft of the motor is fixedly connected with one of the two third transmission rods. The supporting frame is fixedly connected with an air guide hopper; according to the silicon chip cleaning device, through reciprocating motion of the two push plates, silicon chips on the conveying belt are kept in the middle position, a second transmission rod drives a brush to rotate, and therefore large-particle impurities on the surfaces of the silicon chips are cleaned away, dust on the surfaces of the silicon chips is blown away through an air spraying head, and the cleaning effect of the silicon chips is better.

Description

Technical Field

[0001] The utility model relates to the technical field of thyristor chip processing, in particular to a surface powder cleaning device for thyristor chip processing. Background Art

[0002] The thyristor chip is a semiconductor device that can control the switch. Its working principle is to control the flow of current on the PN junction, and the conduction and cutoff of the thyristor chip can be controlled by simply controlling the voltage, thereby realizing the switch control function. During the processing of the thyristor chip, a layer of powder will be generated on its surface, so it needs to be cleaned for the subsequent work.

[0003] In the prior art, a chip production surface cleaning machine with a publication number of CN218591329U cannot keep the chip centered and has a poor cleaning effect on the surface of the silicon chip. Therefore, we propose a surface powder cleaning device for thyristor chip processing. Utility Model Content

[0004] In order to improve the problem that the existing cleaning effect on the surface of silicon chips is usually poor, the present application provides a surface powder cleaning device for thyristor chip processing.

[0005] The present application provides a surface powder cleaning device for thyristor chip processing, which adopts the following technical solution:

[0006] A surface powder cleaning device for processing a thyristor chip, comprising a base;

[0007] A support frame, the support frame is fixedly connected to the base, a motor is fixedly connected to the side of the support frame, two first transmission rods are rotatably connected to the support frame, an output shaft of the motor is fixedly connected to one of the two first transmission rods, two third transmission rods are rotatably connected to the support frame, an air guide scoop is fixedly connected to the support frame, and a support seat is fixedly connected to the air guide scoop;

[0008] A transmission mechanism, disposed on the two first transmission rods, for driving the movement of the silicon chip;

[0009] A cleaning mechanism is provided on the support frame and is used to clean large impurities on the silicon chip;

[0010] A positioning mechanism is provided on the two third transmission rods to ensure that the silicon chip is centered and prevent the silicon chip from slipping off the conveyor belt;

[0011] The dust removal mechanism is arranged on the support frame and the support seat, and is used for cleaning the dust on the silicon chip.

[0012] Preferably, the conveying mechanism comprises two conveying rollers and a conveying belt, the conveying rollers are fixedly sleeved on the first transmission rod, and the conveying belt is drivingly connected to the two conveying rollers.

[0013] Preferably, the cleaning mechanism comprises a second transmission rod and a brush, the second transmission rod is rotatably connected to the support frame, and the brush is fixedly connected to the second transmission rod.

[0014] Preferably, the positioning mechanism includes two reciprocating screws, two guide blocks and two push plates, the reciprocating screws are fixedly connected to the third transmission rod, the guide blocks are slidably connected to the slide grooves of the reciprocating screws, two guide rods are fixedly connected to the guide blocks, and the guide rods are slidably connected to the support frame, and the push plates are fixedly connected to the guide rods.

[0015] Preferably, the dust removal mechanism includes a fan, an air duct and a plurality of nozzles, the fan is fixedly connected to the support frame, the air duct is fixedly connected to the fan, the nozzle is fixedly connected to the support seat, and the plurality of nozzles are fixedly connected to the air duct.

[0016] Preferably, a first pulley is fixedly sleeved on one of the two first transmission rods, a second pulley is fixedly sleeved on the second transmission rod, and a first belt is transmission-connected between the first pulley and the second pulley.

[0017] Preferably, one of the two first transmission rods is provided with two third pulleys on a fixed sleeve, the third transmission rod is provided with a fourth pulley on a fixed sleeve, and the third pulley and the fourth pulley are connected to each other with a second belt.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] 1. By setting a reciprocating screw, a guide block and a push plate, the third transmission rod drives the reciprocating screw to rotate, the slide groove of the reciprocating screw drives the guide block to reciprocate, and the guide block drives the guide rod and the push plate to reciprocate, so that the silicon chip on the conveyor belt is kept in the center position, which is convenient for further processing and can prevent the silicon chip from falling from the conveyor belt;

[0020] 2. By setting up a brush and multiple nozzles, the second transmission rod drives the brush to rotate, so that large particles of impurities on the surface of the silicon chip are cleaned, and the fan blows away the dust on the surface of the silicon chip through the air duct and the nozzle, so that the cleaning effect of the silicon chip is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a surface powder cleaning device for thyristor chip processing proposed by the utility model;

[0022] Figure 2This is a side view structural schematic diagram of a surface powder cleaning device for thyristor chip processing proposed by the utility model;

[0023] Figure 3 The utility model is a schematic structural diagram of part A of a surface powder cleaning device for processing a thyristor chip.

[0024] 1. Base; 2. Support frame; 3. Motor; 4. First transmission rod; 5. Second transmission rod; 6. Third transmission rod; 7. Fan; 8. Conveyor roller; 9. Conveyor belt; 10. Brush; 11. Reciprocating screw; 12. Guide block; 13. Guide rod; 14. Push plate; 15. Air guide scoop; 16. Air guide pipe; 17. Support seat; 18. Injection head; 19. First pulley; 20. First belt; 21. Second pulley; 22. Third pulley; 23. Second belt; 24. Fourth pulley; 25. Air washing box; 26. Exhaust pipe. DETAILED DESCRIPTION

[0025] The following combination Figure 1-Figure 3 This application is described in further detail.

[0026] A method for installing a surface powder cleaning device for processing a thyristor chip, such as Figure 1 As shown, including:

[0027] Base 1;

[0028] A support frame 2, the support frame 2 is fixedly connected to the base 1, a motor 3 is fixedly connected to the side of the support frame 2, two first transmission rods 4 are rotatably connected to the support frame 2, an output shaft of the motor 3 is fixedly connected to one of the two first transmission rods 4, two third transmission rods 6 are rotatably connected to the support frame 2, an air guide scoop 15 is fixedly connected to the support frame 2, and a support seat 17 is fixedly connected to the air guide scoop 15;

[0029] The transmission mechanism is arranged on the two first transmission rods 4 and is used to drive the movement of the silicon chip;

[0030] A cleaning mechanism, arranged on the support frame 2, for cleaning large particles of impurities on the silicon chip;

[0031] A positioning mechanism is provided on the two third transmission rods 6 to ensure that the silicon chip is centered and prevent the silicon chip from slipping off the conveyor belt 9;

[0032] The dust removal mechanism is arranged on the support frame 2 and the support seat 17, and is used to clean the dust on the silicon chip.

[0033] like Figure 1As shown, the conveying mechanism includes two conveying rollers 8 and a conveyor belt 9. The conveying rollers 8 are fixedly mounted on the first transmission rod 4. The conveyor belt 9 is transmission-connected to the two conveying rollers 8. The cleaning mechanism includes a second transmission rod 5 and a brush 10. The second transmission rod 5 is rotationally connected to the support frame 2. The brush 10 is fixedly connected to the second transmission rod 5. The brush 10 cleans the large particles of impurities on the surface of the silicon chip.

[0034] like Figure 1 and Figure 2 As shown, the positioning mechanism includes two reciprocating screws 11, two guide blocks 12 and two push plates 14. The reciprocating screw 11 is fixedly connected to the third transmission rod 6, the guide block 12 is slidably connected to the slide groove of the reciprocating screw 11, two guide rods 13 are fixedly connected to the guide block 12, and the guide rods 13 are slidably connected to the support frame 2, and the push plates 14 are fixedly connected to the guide rods 13.

[0035] like Figure 1 As shown, the dust removal mechanism includes a fan 7, an air duct 16 and a plurality of nozzles 18, the fan 7 is fixedly connected to the support frame 2, the air duct 16 is fixedly connected to the fan 7, the nozzle 18 is fixedly connected to the support seat 17, and the plurality of nozzles 18 are fixedly connected to the air duct 16.

[0036] like Figure 3 As shown, one of the two first transmission rods 4 is provided with a first pulley 19 on a fixed sleeve, the second transmission rod 5 is provided with a second pulley 21 on a fixed sleeve, the first pulley 19 and the second pulley 21 are connected to the first belt 20 for transmission, one of the two first transmission rods 4 is provided with two third pulleys 22 on a fixed sleeve, the third transmission rod 6 is provided with a fourth pulley 24 on a fixed sleeve, and the third pulley 22 and the fourth pulley 24 are connected to the second belt 23 for transmission.

[0037] The implementation principle of the surface powder cleaning device for thyristor chip processing in the embodiment of the present application is as follows: when working, the silicon chip is first placed on the conveyor belt 9, and then the switches of the motor 3 and the fan 7 are started, the output shaft of the motor 3 drives the first transmission rod 4 to rotate, the first transmission rod 4 drives the transmission roller 8 to rotate, the transmission roller 8 drives the conveyor belt 9 to move through the transmission connection with the conveyor belt 9, thereby driving the silicon chip to move, and at the same time the first transmission rod 4 drives the first pulley 19 to rotate, the first pulley 19 drives the second pulley 21 to rotate through the transmission connection with the first belt 20, the second pulley 21 drives the second transmission rod 5 to rotate, and the second transmission rod 5 drives the brush 10 to rotate, so that the surface of the silicon chip is cleaned. The large particles of impurities on the surface are cleaned, and at the same time, the first transmission rod 4 drives the third pulley 22 to rotate, and the third pulley 22 drives the fourth pulley 24 to rotate through the transmission connection with the second belt 23, and the fourth pulley 24 drives the third transmission rod 6 to rotate, and the third transmission rod 6 drives the reciprocating screw 11 to rotate, and the slide groove of the reciprocating screw 11 drives the guide block 12 to reciprocate, and the guide block 12 drives the guide rod 13 and the push plate 14 to reciprocate, so that the silicon chip on the conveyor belt 9 remains in the center position, which is convenient for further processing and can prevent the silicon chip from falling from the conveyor belt 9. At the same time, the fan 7 blows away the dust on the surface of the silicon chip through the air duct 16 and the nozzle 18, so that the cleaning effect of the silicon chip is better.

[0038] Embodiment 2: The difference between Embodiment 2 and Embodiment 1 is that an air washing box 25 is fixedly mounted on the fan 7, a plurality of exhaust pipes 26 are fixedly connected to the air washing box 25, the exhaust pipes 26 are fixedly connected to the air guide scoop 15, when the fan 7 is working, the air inlet of the fan 7 is connected to the air washing box 25, so that the dust in the air guide scoop 15 can be sucked into the air washing box 25 through the exhaust pipes 26, so that the dust generated by the dust removal is processed.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A surface powder cleaning device for thyristor chip processing, characterized in that: include: Base (1); A support frame (2), the support frame (2) is fixedly connected to the base (1), a motor (3) is fixedly connected to the side of the support frame (2), two first transmission rods (4) are rotatably connected to the support frame (2), an output shaft of the motor (3) is fixedly connected to one of the two first transmission rods (4), two third transmission rods (6) are rotatably connected to the support frame (2), an air guide scoop (15) is fixedly connected to the support frame (2), and a support seat (17) is fixedly connected to the air guide scoop (15); A transmission mechanism, arranged on the two first transmission rods (4), for driving the movement of the silicon chip; A cleaning mechanism is arranged on the support frame (2) and is used to clean large impurities on the silicon chip; A positioning mechanism is arranged on the two third transmission rods (6) and is used to ensure that the silicon chip is centered and prevent the silicon chip from slipping off the conveyor belt (9); The dust removal mechanism is arranged on the support frame (2) and the support seat (17) and is used to clean dust on the silicon chip.

2. The surface powder cleaning device for processing thyristor chips according to claim 1, characterized in that: The conveying mechanism comprises two conveying rollers (8) and a conveying belt (9); the conveying rollers (8) are fixedly sleeved on the first transmission rod (4); and the conveying belt (9) is transmission-connected to the two conveying rollers (8).

3. The surface powder cleaning device for processing a thyristor chip according to claim 2, characterized in that: The cleaning mechanism comprises a second transmission rod (5) and a brush (10); the second transmission rod (5) is rotatably connected to the support frame (2); and the brush (10) is fixedly connected to the second transmission rod (5).

4. The surface powder cleaning device for processing thyristor chips according to claim 3, characterized in that: The positioning mechanism comprises two reciprocating screws (11), two guide blocks (12) and two push plates (14); the reciprocating screws (11) are fixedly connected to the third transmission rod (6); the guide blocks (12) are slidably connected to the slide grooves of the reciprocating screws (11); two guide rods (13) are fixedly connected to the guide blocks (12); the guide rods (13) are slidably connected to the support frame (2); and the push plates (14) are fixedly connected to the guide rods (13).

5. The surface powder cleaning device for processing thyristor chips according to claim 4, characterized in that: The dust removal mechanism comprises a fan (7), an air guide pipe (16) and a plurality of nozzles (18); the fan (7) is fixedly connected to the support frame (2); the air guide pipe (16) is fixedly connected to the fan (7); the nozzle (18) is fixedly connected to the support seat (17); and the plurality of nozzles (18) are all fixedly connected to the air guide pipe (16).

6. The surface powder cleaning device for processing thyristor chips according to claim 5, characterized in that: A first belt pulley (19) is fixedly sleeved on one of the two first transmission rods (4), a second belt pulley (21) is fixedly sleeved on the second transmission rod (5), and a first belt (20) is transmission-connected between the first belt pulley (19) and the second belt pulley (21).

7. The surface powder cleaning device for processing thyristor chips according to claim 6, characterized in that: One of the two first transmission rods (4) is provided with two third belt pulleys (22) on a fixed sleeve, the third transmission rod (6) is provided with a fourth belt pulley (24) on a fixed sleeve, and the third belt pulley (22) and the fourth belt pulley (24) are connected to each other with a second belt (23) in transmission.

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