Photoelectric coupler die bonding and packaging device with dust removal mechanism

Abstract

The invention relates to a photoelectric coupler die bonding packaging device with a dust removal mechanism, which comprises a rack, a packaging mechanism, a supporting seat and the dust removal mechanism are arranged on the rack, the dust removal mechanism comprises dust suction hoods and a dust suction box, a driving part is arranged on the rack, the dust suction hoods on the two sides form a dust suction space for covering the supporting seat and a workpiece, and the dust suction box is arranged on the driving part. The dust collection box is arranged on the rack and connected with the dust collection cover through an air pipe, and a negative pressure mechanism used for providing negative pressure for the dust collection box is arranged on the rack; the driving part drives the dust hoods on the two sides to slide in the opposite directions, the supporting base and the workpiece are arranged in the dust collection space in a covering mode, at the moment, the negative pressure mechanism provides negative pressure, dust is collected into the dust hoods through the air pipes into the dust collection box to be filtered, after dust removal and cleaning are completed, the driving part drives the dust hoods on the two sides to move oppositely to be separated from the supporting base, and at the moment, the workpiece is taken down. The cleaning device has the effect of convenient cleaning operation.

Description

Technical Field

[0001] This application relates to the field of optocoupler die bonding packaging equipment, and more particularly to an optocoupler die bonding packaging device with a dust removal mechanism. Background Technology

[0002] The optocoupler die bond packaging equipment is a type of equipment specifically designed for the automated production of optocouplers.

[0003] The core function of the die bonding packaging device is to complete the picking, positioning, die bonding, and subsequent preliminary packaging process of the light-emitting chip and light-receiving chip inside the optocoupler with high precision and high efficiency.

[0004] During chip picking and processing transfer, the contact between the nozzle and the blue film on the wafer or occasional operational errors may generate extremely small debris. The presence of debris can lead to uneven chip bonding, poor soldering, or even short circuits. If not cleaned in time, it will result in a decrease in product yield. Summary of the Invention

[0005] To address the issue that failure to clean up minute debris can lead to a decrease in product yield, this application provides an optocoupler die bonding packaging device with a dust removal mechanism.

[0006] The optocoupler die-bonding packaging device with a dust removal mechanism provided in this application adopts the following technical solution: A die-bonding packaging device for an optocoupler with a dust removal mechanism includes a frame, a packaging mechanism for encapsulating workpieces, a support base for placing workpieces, and a dust removal mechanism comprising a dust collection hood and a dust collection box. Two dust collection hoods are disposed opposite each other on the frame. A driving component is provided on the frame to drive the dust collection hoods to slide in opposite directions. The dust collection hoods on both sides form a dust collection space for covering the support base and the workpiece. The dust collection box is disposed on the frame and connected to the dust collection hoods via a duct. The dust collection box is used to filter dust. A negative pressure mechanism is provided on the frame to provide negative pressure to the dust collection box.

[0007] By adopting the above technical solution, the packaging mechanism performs packaging operations on the workpiece on the support base. After packaging is completed, the driving component drives the dust collection hoods on both sides to slide in opposite directions, placing the support base and workpiece in the dust collection space. At this time, the negative pressure mechanism provides negative pressure, which draws dust into the dust collection hood through the air duct and filters it into the dust collection box. After dust removal and cleaning are completed, the driving component drives the dust collection hoods on both sides to move in opposite directions to separate from the support base. At this time, the workpiece can be removed, making it convenient to clean up small debris.

[0008] Optionally, the drive mechanism includes a handwheel and a lead screw. The lead screw is rotatably mounted on the frame, and its axis is distributed along the sliding direction of the dust hood. The handwheel is rotatably mounted on the frame and coaxially connected to the lead screw. A movable block is provided on one side of the dust hood, and the movable block is slidably mounted on the frame. The movable block is threadedly connected to the lead screw.

[0009] By adopting the above technical solution, when the operator turns the handwheel, the lead screw coaxial with the handwheel rotates synchronously, driving the moving block to move linearly along the sliding direction of the dust hood, thereby driving the dust hood to smoothly approach or move away from the support seat. The mechanical transmission structure of the handwheel and the lead screw can realize precise fine adjustment of the sliding position of the dust hood, making operation convenient.

[0010] Optionally, the lead screw is provided with two opposite threaded sections, and the movable blocks on the dust collection covers on both sides are threadedly connected to the lead screw at the two threaded sections respectively. The frame is provided with a bellows cover, the lead screw is located inside the bellows cover, and the movable blocks are connected to the bellows cover.

[0011] By adopting the above technical solution, when the handwheel is turned, the moving blocks of the dust collection hoods on both sides move synchronously in opposite directions along the lead screw. The synchronous drive on both sides simplifies the operation process. The accordion cover completely wraps the lead screw, effectively blocking the tiny debris or external dust sucked in during the cleaning process from entering the thread gap of the lead screw, avoiding thread wear and jamming, and ensuring the sealing of the dust collection space and the dust removal effect.

[0012] Optionally, an extension cover is slidably installed on the dust collection covers on both sides and on the opposite side. The sliding direction of the extension cover is the same as the moving direction of the dust collection cover. One side of the extension cover on both sides abuts against each other and covers and seals the workpiece.

[0013] By adopting the above technical solution, when the two dust hoods move towards each other to the preset position, the extension hood extends further and abuts against each other, forming a larger sealed dust suction space than the dust hood itself, completely wrapping the workpiece and the support base, reducing the possibility that the dust hood cannot completely cover the workpiece due to its large size, making the equipment adaptable to various workpiece sizes, eliminating the need to replace the dust hood, and enhancing the equipment's versatility.

[0014] Optionally, the dust hood has several through air inlets on its top and an air outlet on the bottom of its inner side away from the extension cover. The air duct is connected to the dust hood at the air outlet.

[0015] By adopting the above technical solution, outside air enters the dust collection space smoothly through the air inlet at the top of the dust collection hood, forming a downward airflow direction. This can blow the tiny debris on the surface of the workpiece and the support base to the bottom and collect it. The debris is then transported out through the air duct from the air outlet, reducing the circulation of debris in the dust collection space or its deposition in non-outlet areas, thus improving the targeting and efficiency of debris adsorption.

[0016] Optionally, the dust hood is provided with a sliding groove, the extension cover is slidably connected to the dust hood through the sliding groove, the dust hood is provided with a sliding rod at the sliding groove, a retaining spring is sleeved on the sliding rod, the extension cover is slidably connected to the sliding rod and connected to one end of the retaining spring.

[0017] By adopting the above technical solution, the cooperation between the sliding groove and the sliding rod provides sliding guidance for the extension cover, reducing the deviation and jamming of the extension cover during movement. When the two sides of the extension cover come into contact, the elastic force of the clamping spring makes the extension cover fit tightly, eliminating the contact gap and ensuring the dust collection effect.

[0018] Optionally, a limiting rod is provided on one side of the dust collection hood. The limiting rod is distributed along the moving direction of the dust collection hood and is slidably connected to the dust collection hood. The limiting rod is locked to the dust collection hood by a locking bolt. A limiting block is provided on the other side of the dust collection hood. The limiting block is provided with a limiting groove on the side surface facing the limiting rod.

[0019] By adopting the above technical solution, the operator can adjust the extension length of the limiting rod according to the workpiece size. After being fixed by the locking bolt, when the two dust hoods move towards each other, the limiting rod will be inserted into the limiting groove of the limiting block to prevent the dust hood from moving closer and reduce the problem of the dust hood and extension hood squeezing the workpiece due to excessive rotation of the handwheel or loss of control of the drive components.

[0020] Optionally, the air inlets are provided in a plurality of parallel arrangement, and an adjustment plate is slidably mounted on the extension cover along the arrangement direction of the plurality of air inlets. The adjustment plate is provided with blocking holes corresponding one-to-one with the positions of the air inlets, and the extension cover is provided with an adjustment component for adjusting the position of the adjustment plate.

[0021] By adopting the above technical solution, the parallel distribution of air inlets ensures that outside air enters the dust collection space evenly. The sliding adjustment plate changes the degree of overlap between the blocking hole and the air inlet through the adjustment component, thereby controlling the actual ventilation area of ​​the air inlet: when there are few debris on the workpiece surface, the ventilation area can be reduced, making the negative pressure in the dust collection space more concentrated, improving the local adsorption force, and ensuring that small debris is removed; when there are many debris on the workpiece surface or the workpiece size is large, the ventilation area can be increased, increasing the total air intake, accelerating the airflow circulation speed, and improving the overall dust collection efficiency.

[0022] Optionally, the adjusting component includes an adjusting screw and a pressure block. The pressure block is slidably mounted on the extension cover, and the adjusting screw is threaded onto the extension cover. The pressure block is rotatably connected to one end of the adjusting screw. A pushing block is provided on one side of the adjusting plate. A first inclined surface is provided on the pressure block and on the side facing the pushing block. A second inclined surface is provided on the pushing block for abutting against the first inclined surface.

[0023] By adopting the above technical solution, when the operator rotates the adjusting screw, since the screw is threadedly connected to the extension cover, the screw drives the pressure block to slide along the extension cover. The first inclined surface of the pressure block abuts against the second inclined surface of the push block. The guiding effect of the inclined surface is used to push the push block to move laterally, thereby pushing the adjusting plate to move, making the control and adjustment operation convenient.

[0024] Optionally, a return spring is provided on the extension cover and on the side opposite to the push block, and one side of the adjustment plate is connected to one end of the return spring.

[0025] By adopting the above technical solution, when it is necessary to increase the ventilation area of ​​the air inlet, the adjusting screw is rotated in the opposite direction, and the elastic force of the reset spring drives the adjusting plate to automatically reset, eliminating the need for manual pulling of the adjusting plate, simplifying the operation process and improving the adjustment efficiency.

[0026] In summary, this application includes at least one of the following beneficial technical effects: After encapsulation, the drive unit drives the dust collection hood to cover the support base and the workpiece. The negative pressure mechanism sucks the dust into the dust collection box for filtration. After cleaning is completed, the drive unit separates the dust collection hood, making it easy to remove the workpiece. The operation of cleaning small debris is convenient. The handwheel and lead screw work together to move the dust hood smoothly, allowing for precise fine-tuning of the dust hood's position. The two opposite threads on the lead screw enable the dust hoods on both sides to move synchronously towards or away from each other, simplifying the operation process. The accordion cover can prevent debris and dust from entering the lead screw, ensuring the airtightness of the vacuuming space and the dust removal effect. The extended hood creates a larger, enclosed dust collection space, adapts to various workpiece sizes, enhances the equipment's versatility, and the air inlet creates a top-down airflow, improving the targeting and efficiency of debris adsorption. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of this application.

[0028] Figure 2 This is a three-dimensional structural diagram of one side of the driving component of this application.

[0029] Figure 3 This is a partial cross-sectional structural diagram of the dust hood and extension hood of this application.

[0030] Figure 4This is an enlarged partial cross-sectional structural diagram of part A of this application.

[0031] Figure 5 This is an enlarged partial cross-sectional structural diagram of Part B of this application.

[0032] Figure 6 This is an enlarged cross-sectional structural diagram of part C of this application.

[0033] Those skilled in the art will understand that the elements in the accompanying drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the size and position of some elements in the drawings may be enlarged relative to other elements to aid in understanding the embodiments of the invention.

[0034] Reference numerals: 1. Frame; 11. Encapsulation mechanism; 12. Support base; 13. Slide groove; 14. Bellows cover; 2. Dust removal mechanism; 21. Dust suction hood; 211. Moving block; 212. Sliding groove; 213. Slide rod; 214. Pressing spring; 215. Air inlet; 216. Air outlet; 217. Limiting rod; 218. Locking bolt; 22. Dust collection box; 221. Air duct; 3. Driving component; 31. Handwheel; 32. Lead screw; 4. Extension cover; 5. Adjusting plate; 51. Blocking hole; 52. Pushing block; 53. Return spring; 6. Adjusting component; 61. Adjusting screw; 62. Pressure block; 7. Negative pressure mechanism. Detailed Implementation

[0035] The present application will be further described in detail below with reference to the accompanying drawings.

[0036] This application discloses an optocoupler die bonding and packaging device with a dust removal mechanism 2, referring to... Figure 1 The system includes a frame 1, a packaging mechanism 11, a support base 12, and a dust removal mechanism 2. The packaging mechanism 11, the support base 12, and the dust removal mechanism 2 are all mounted on the frame 1. The packaging mechanism 11 is used to package the workpiece, the support base 12 is used to place the workpiece, and the dust removal mechanism 2 is used to remove tiny debris generated during the packaging process. After the packaging operation, the debris is cleaned up in time, which avoids the impact of debris on the chip bonding and soldering quality, and achieves the effect of convenient debris cleaning and improved product yield.

[0037] Reference Figure 1 and Figure 2The dust removal mechanism 2 includes a dust collection hood 21 and a dust collection box 22. Two dust collection hoods 21 are provided and distributed opposite each other on the frame 1. The dust collection hoods 21 can be used to cover the support base 12 and the workpiece to form a dust collection space. The dust collection box 22 is mounted on the frame 1 and connected to the dust collection hoods 21 via a duct 221. The dust collection box 22 is used to filter the dust collected. A negative pressure mechanism 7 is provided on the frame 1 to provide negative pressure to the dust collection box 22. The dust collection hoods 21 are rectangular in shape, and a drive component 3 is provided on the frame 1 to drive the dust collection hoods 21 to slide in opposite directions.

[0038] Reference Figure 2 and Figure 3 The driving component 3 includes a handwheel 31 and a lead screw 32. The lead screw 32 is rotatably mounted on the frame 1 and is distributed along the length of the frame 1. The handwheel 31 is rotatably mounted on the frame 1 and coaxially connected to the lead screw 32. A movable block 211 is provided on one side of the dust hood 21. A slide groove 13 is provided on the frame 1 below the lead screw 32 and is distributed along the length of the lead screw 32. The movable block 211 is slidably mounted in the slide groove 13 of the frame 1 and threadedly connected to the lead screw 32. The threaded connection between the movable block 211 and the lead screw 32 allows the movable block 211 to move linearly along the lead screw 32 when the lead screw 32 rotates.

[0039] Reference Figure 2 and Figure 3 The lead screw 32 has two opposite threaded sections, and the movable blocks 211 on both sides of the dust collection hood 21 are threadedly connected to the two threaded sections of the lead screw 32. When the handwheel 31 is rotated, the movable blocks 211 on both sides of the dust collection hood 21 will move synchronously in opposite directions along the lead screw 32, thereby realizing the synchronous drive of the dust collection hood 21 on both sides and simplifying the operation process. The frame 1 is equipped with a bellows cover 14, and the lead screw 32 is located inside the bellows cover 14. The movable blocks 211 are connected to the bellows cover 14. The bellows cover 14 is generally made of soft and wear-resistant materials, such as rubber or nylon. Its function is to completely wrap the lead screw 32, effectively blocking the entry of small debris or external dust sucked in during the cleaning process into the thread gap of the lead screw 32, avoiding thread wear and jamming, and ensuring the sealing of the dust collection space and the dust removal effect.

[0040] Reference Figure 2 and Figure 3An extension cover 4 is slidably mounted on the dust collection hoods 21 on both sides, located on the opposite side. The dust collection hoods 21 are provided with sliding grooves 212, through which the extension cover 4 is slidably connected to the dust collection hoods 21. The shape and size of the sliding grooves 212 match the sliding portion of the extension cover 4, and are generally rectangular grooves. When the two dust collection hoods 21 move towards each other to a preset position, the extension cover 4 extends further and abuts against each other, forming a larger sealed dust collection space than the dust collection hoods 21 themselves. This completely encloses the workpiece and the support base 12, reducing the problem of the dust collection hoods 21 not being able to completely cover the workpiece due to its large size. This allows the equipment to adapt to various workpiece sizes without the need to replace the dust collection hoods 21, enhancing the equipment's versatility.

[0041] Reference Figure 3 and Figure 4 The dust collection hood 21 is equipped with a sliding rod 213 located at the sliding groove 212. A retaining spring 214 is fitted on the sliding rod 213. The extension hood 4 is slidably connected to the sliding rod 213 and connected to one end of the retaining spring 214. The cooperation between the sliding groove 212 and the sliding rod 213 provides sliding guidance for the extension hood 4, reducing the possibility of the extension hood 4 shifting or getting stuck during movement. To improve sealing, a circumferential sealing strip is provided on the opposite side of the extension hood 4. When the two sides of the extension hood 4 come into contact, the elasticity of the retaining spring 214 makes the extension hood 4 fit tightly together, eliminating the contact gap and ensuring the dust collection effect.

[0042] Reference Figure 3 and Figure 4 The dust collection hood 21 has several through-holes 215 distributed parallel to each other along the axis of the lead screw 32 at its top. The diameter and number of the air inlets 215 can be designed according to the dust collection requirements. An air outlet 216 is located at the bottom of the inner side of the dust collection hood 21, opposite to the extension cover 4. An air duct 221 connects to the dust collection hood 21 at the air outlet 216. Outside air smoothly enters the dust collection space through the air inlets 215 at the top of the dust collection hood 21, forming a downward airflow. This airflow blows tiny debris from the workpiece surface and the support base 12 towards the bottom, where it is collected and transported out through the air duct 221 from the air outlet 216. This reduces the circulation of debris within the dust collection space or its deposition in areas outside the air outlet 216, improving the targeting and efficiency of debris adsorption.

[0043] Reference Figure 3 and Figure 4A horizontal limiting rod 217 is provided on one side of the dust suction hood 21. The limiting rod 217 is distributed along the moving direction of the dust suction hood 21 and is slidably connected to the dust suction hood 21. The limiting rod 217 and the dust suction hood 21 are locked together by locking bolts 218. The operator can adjust the extension length of the limiting rod 217 according to the size of the workpiece. After being fixed by the locking bolts 218, when the two dust suction hoods 21 move towards each other, the limiting rod 217 will insert into the limiting groove of the limiting block, preventing the dust suction hood 21 from moving closer. This reduces the problem of the dust suction hood 21 and the extension cover 4 squeezing the workpiece due to excessive rotation of the handwheel 31 or loss of control of the drive component 3.

[0044] Reference Figure 3 and Figure 4 An adjusting plate 5 is slidably mounted on the extension cover 4 along the arrangement direction of several air inlets 215. The adjusting plate 5 is provided with blocking holes 51 that correspond one-to-one with the positions of the air inlets 215. The adjusting plate 5 can control the actual ventilation area of ​​the air inlets 215 by changing the degree of overlap between the blocking holes 51 and the air inlets 215. An adjusting component 6 for adjusting the position of the adjusting plate 5 is provided on the extension cover 4. The adjusting component 6 includes an adjusting screw 61 and a pressure block 62. The pressure block 62 is slidably mounted on the extension cover 4, the adjusting screw 61 is threaded onto the extension cover 4, and one end of the pressure block 62 is rotatably connected to the adjusting screw 61. A pushing block 52 is provided on one side of the adjusting plate 5. A first inclined surface is provided on the pressure block 62 and on the side facing the pushing block 52. A second inclined surface is provided on the pushing block 52 for abutting against the first inclined surface.

[0045] When the operator rotates the adjusting screw 61, since the screw is threadedly connected to the extension cover 4, the screw drives the pressure block 62 to slide along the extension cover 4. The first inclined surface of the pressure block 62 abuts against the second inclined surface of the push block 52. The guide effect of the inclined surface pushes the push block 52 to move laterally, thereby moving the adjusting plate 5. This makes the adjustment operation convenient. Alternative features include using an electric push rod to directly move the adjusting plate 5; or using an electromagnetic drive to adjust the position of the adjusting plate 5.

[0046] Reference Figure 4 and Figure 5 A return spring 53 is provided on the extension cover 4 on the side opposite to the push block 52, and one side of the adjusting plate 5 is connected to one end of the return spring 53. When it is necessary to increase the ventilation area of ​​the air inlet 215, the adjusting screw 61 is rotated in the opposite direction, and the elastic force of the return spring 53 drives the adjusting plate 5 to automatically return to its original position. This eliminates the need for manual pulling of the adjusting plate 5, simplifying the operation process and improving the adjustment efficiency.

[0047] Reference Figure 1The dust collection box 22 is mounted on the frame 1 and connected to the dust collection hood 21 via an air duct 221. The dust collection box 22 is used to filter the dust collected. The dust collection box 22 typically contains a filter screen or other filtration device; the material and pore size of the filter screen can be selected according to the size of the debris to be filtered. The frame 1 is equipped with a negative pressure mechanism 7 for providing negative pressure to the dust collection box 22. The negative pressure mechanism 7 uses a vacuum pump or similar equipment to generate negative pressure, drawing air and debris from the dust collection hood 21 into the dust collection box 22.

[0048] The implementation principle of this embodiment is as follows: The packaging mechanism 11 performs packaging operations on the workpiece on the support base 12. After packaging is completed, the operator rotates the handwheel 31, and the lead screw 32, which is coaxial with the handwheel 31, rotates synchronously, driving the moving blocks 211 on both sides of the dust collection hood 21 to move synchronously towards each other along the lead screw 32, thus covering the support base 12 and the workpiece in the dust collection space. At this time, the negative pressure mechanism 7 provides negative pressure, and outside air enters the dust collection space through the air inlet 215 at the top of the dust collection hood 21, forming a downward airflow that blows the small debris on the surface of the workpiece and the support base 12 to the bottom, and then sucks it into the dust collection box 22 for filtration through the air outlet 216 and the air duct 221. During this process, the extension hood 4 extends further and abuts against each other, forming a larger sealed dust collection space and improving the dust collection effect. At the same time, the operator can adjust the ventilation area of ​​the air inlet 215 according to the amount of debris on the surface of the workpiece and the size of the workpiece, through the adjusting component 6, to achieve the best dust collection effect. After dust removal and cleaning are completed, the operator turns the handwheel 31 in the opposite direction to drive the dust collection hoods 21 on both sides to move in the opposite direction until they are separated from the support base 12, at which point the workpiece is removed.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A die-bonding packaging device for an optocoupler with a dust removal mechanism, comprising a frame (1), wherein a packaging mechanism (11) for packaging a workpiece is provided on the frame (1), and a support base (12) for placing the workpiece is provided on the frame (1), characterized in that: The frame (1) is provided with a dust removal mechanism (2), which includes a dust suction hood (21) and a dust suction box (22). There are two dust suction hoods (21) and they are distributed opposite to each other on the frame (1). The frame (1) is provided with a driving member (3) for driving the dust suction hoods (21) to slide in opposite directions. The dust suction hoods (21) on both sides form a dust suction space for covering the support base (12) and the workpiece. The dust suction box (22) is provided on the frame (1) and connected to the dust suction hoods (21) through a duct (221). The dust suction box (22) is used to filter the dust. The frame (1) is provided with a negative pressure mechanism (7) for providing negative pressure to the dust suction box (22).

2. The optocoupler die-bonding packaging device with a dust removal mechanism according to claim 1, characterized in that: The drive mechanism includes a handwheel (31) and a lead screw (32). The lead screw (32) is rotatably mounted on the frame (1). The axis of the lead screw (32) is distributed along the sliding direction of the dust hood (21). The handwheel (31) is rotatably mounted on the frame (1) and coaxially connected with the lead screw (32). A moving block (211) is provided on one side of the dust hood (21). The moving block (211) is slidably mounted on the frame (1). The moving block (211) is threadedly connected to the lead screw (32).

3. The optocoupler die bonding and packaging device with a dust removal mechanism according to claim 2, characterized in that: The lead screw (32) is provided with two opposite threaded sections. The movable blocks (211) on the dust collection covers (21) on both sides are threadedly connected to the lead screw (32) at the two threaded sections respectively. The frame (1) is provided with a bellows cover (14). The lead screw (32) is located inside the bellows cover (14). The movable blocks (211) are connected to the bellows cover (14).

4. The optocoupler die bonding and packaging device with a dust removal mechanism according to claim 1, characterized in that: An extension cover (4) is slidably installed on the dust collection cover (21) on both sides and on the opposite side. The sliding direction of the extension cover (4) is the same as the moving direction of the dust collection cover (21). The two sides of the extension cover (4) abut against each other and cover the workpiece.

5. The optocoupler die bonding and packaging device with a dust removal mechanism according to claim 4, characterized in that: The extension cover (4) has several through air inlets (215) on its top side, and the dust collection cover (21) has an air outlet (216) on its inner side and at the bottom of the side opposite to the extension cover (4). The air duct (221) is connected to the dust collection cover (21) at the air outlet (216).

6. The optocoupler die bonding and packaging device with a dust removal mechanism according to claim 4, characterized in that: The dust cover (21) is provided with a sliding groove (212). The extension cover (4) is slidably connected to the dust cover (21) through the sliding groove (212). The dust cover (21) is provided with a sliding rod (213) at the sliding groove (212). A retaining spring (214) is sleeved on the sliding rod (213). The extension cover (4) is slidably connected to the sliding rod (213) and connected to one end of the retaining spring (214).

7. The optocoupler die bonding and packaging device with a dust removal mechanism according to claim 4, characterized in that: A limiting rod (217) is provided on one side of the dust hood (21). The limiting rod (217) is distributed along the moving direction of the dust hood (21) and is slidably connected to the dust hood (21). The limiting rod (217) is locked to the dust hood (21) by a locking bolt (218). A limiting block is provided on the other side of the dust hood (21). The limiting block is provided with a limiting groove on the side surface facing the limiting rod (217).

8. The optocoupler die bonding and packaging device with a dust removal mechanism according to claim 5, characterized in that: The air inlet (215) is provided in a plurality of parallel arrangement. An adjustment plate (5) is slidably installed on the extension cover (4) along the arrangement direction of the plurality of air inlets (215). The adjustment plate (5) is provided with a blocking hole (51) corresponding to the position of the air inlet (215). The extension cover (4) is provided with an adjustment component (6) for adjusting the position of the adjustment plate (5).

9. The optocoupler die-bonding packaging device with a dust removal mechanism according to claim 8, characterized in that: The adjusting component (6) includes an adjusting screw (61) and a pressure block (62). The pressure block (62) is slidably mounted on the extension cover (4). The adjusting screw (61) is threaded onto the extension cover (4). The pressure block (62) is rotatably connected to one end of the adjusting screw (61). A pushing block (52) is provided on one side of the adjusting plate (5). A first inclined surface is provided on the pressure block (62) and on the side facing the pushing block (52). A second inclined surface is provided on the pushing block (52) for abutting against the first inclined surface.

10. The optocoupler die bonding and packaging device with a dust removal mechanism according to claim 9, characterized in that: A reset spring (53) is provided on the extension cover (4) and on the side opposite to the push block (52), and one side of the adjustment plate (5) is connected to one end of the reset spring (53).

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