Dispensing device for processing circuit board

Abstract

The application provides a circuit board processing dispensing device, and relates to the technical field of circuit board processing. The circuit board processing dispensing device comprises a cover storage assembly, the cover storage assembly comprises a cover storage bin fixed on a rack; a plurality of covers are provided, and the covers are detachably arranged in the cover storage bin through a limiting mechanism; a base is detachably connected with a positioning seat, and the base is used for placing a circuit board; a transfer mechanism is detachably connected with the base through a locking mechanism, and the base is moved away from the positioning seat and buckled with the cover in the cover storage bin. After dispensing is completed, the base is connected with the transfer mechanism, the base is moved away from the positioning seat, and the base is buckled with the cover in the cover storage bin. The circuit board on the base is closed, the circuit board is isolated from dust, hair, fibers and other impurities in the air before solidification, the glue on the circuit board is prevented from being polluted, and the influence of the protection and reinforcement effect is reduced.

Description

Technical Field

[0001] This application relates to the field of circuit board processing technology, and in particular to a dispensing device for circuit board processing. Background Technology

[0002] Circuit board manufacturing is a systematic process from substrate to finished product. Its core steps include substrate treatment, circuit fabrication, component soldering, and dispensing. The main function of dispensing on circuit boards is to form an adhesive layer that can prevent dust, moisture, oil, etc. from entering the circuit board, avoiding oxidation or short circuits of component leads. At the same time, it enhances structural stability and prevents solder joints from falling off or components from loosening due to vibration during transportation and use.

[0003] Currently, for dispensing circuit boards in small-batch production or sample production, semi-automatic dispensing machines are typically used. When using a semi-automatic dispensing machine, the circuit board is placed manually on the worktable, and the machine completes the dispensing according to a preset program. After dispensing, the circuit board is removed manually and a new board is replaced. For example, utility model patent CN221387200U discloses a circuit board dispensing machine. This machine includes a glue gun, a lifting assembly at the top of which drives the glue gun to move up and down, a Y-axis moving assembly at the top of the lifting assembly to move the glue gun, an L-shaped bracket at the top of the Y-axis moving assembly, and a fixed connection at the bottom of the L-shaped bracket to the top of the worktable. The top of the worktable also has an X-axis moving assembly for moving a fixing assembly, and a fixing assembly at the top of the X-axis moving assembly for fixing the circuit board.

[0004] After adhesive is applied to circuit boards, curing is typically achieved through methods such as heat curing or UV curing. During the dispensing process using a circuit board dispensing machine, adhesive is usually applied to each circuit board individually, and the dispensed boards are then set aside. Once multiple circuit boards in a batch have been dispensed, they are then sent together to the curing equipment for curing. Therefore, before being sent to the curing equipment, the circuit boards must be exposed to air for a considerable period. Because the uncured adhesive layer on the circuit board is sticky, dust, hair, fibers, and other impurities in the air can easily adhere to the adhesive surface, causing adhesive contamination and potentially affecting its protective and reinforcing effects. For example, contaminants may form gaps or holes in the adhesive layer, damaging its seal and allowing moisture, dust, and oil that should be isolated to seep into the circuit board, causing oxidation of component leads and corrosion of circuits, increasing the risk of short circuits. Another example is that contamination can create uneven weak points inside the adhesive layer, making it impossible to evenly distribute vibration and impact forces. Over long-term use, these weak points may cause the adhesive layer to crack and fall off, components to lose their fixed support, and consequently, solder joint fatigue, loosening, or even detachment. Utility Model Content

[0005] The purpose of this application is to provide a dispensing device for circuit board processing, which solves the problem that after the circuit board dispensing machine in the related art dispenses adhesive to the circuit board, the adhesive is easily exposed to the air and becomes contaminated, thereby affecting the protection and reinforcement effect.

[0006] The dispensing device for circuit board processing provided in this application adopts the following technical solution: A dispensing device for circuit board processing includes a dispensing machine body, the dispensing machine body including a worktable, a positioning seat, and a dispensing head, the positioning seat being mounted on the worktable via a Y-axis drive component, and the dispensing head being mounted on the worktable via an XZ-axis drive component, and further comprising: frame; A storage cover assembly, the storage cover assembly including a storage cover compartment fixed on the frame; The cap is provided in multiple sets and can be separated and placed in the storage compartment by a limiting mechanism; A base, which is detachably connected to a positioning seat, is used to place a circuit board. The transfer mechanism is detachably connected to the base via a locking mechanism, and can remove the base from the positioning seat and engage with the cover inside the storage compartment.

[0007] Optionally, the positioning seat is provided with a column, the base is provided with a positioning hole, and the base is sleeved on the column through the positioning hole. The transfer mechanism includes a lifting seat, the lifting seat is slidably mounted on the frame, the frame is provided with a vertical moving drive for driving the lifting seat to move vertically, the lifting seat is provided with a support column arranged in the horizontal direction, the base is provided with a hook hole, and the base can be sleeved on the outside of the support column through the hook hole. The locking mechanism is provided on the lifting seat.

[0008] Optionally, the locking mechanism includes a wedge block and a locking spring. The lifting seat is provided with a locking tongue hole, and the base is provided with a locking tongue that can be inserted into the locking tongue hole. The top of the locking tongue is provided with a locking groove. The wedge block is slidably disposed on the lifting seat, and the locking spring is disposed on the lifting seat and acts on the wedge block. When the locking tongue is inserted into the locking tongue hole, the locking spring can push the wedge block to engage with the locking groove. The wedge block is provided with a release plate, and the frame is provided with a release post along the vertical direction. When the vertical movement drive drives the lifting seat to move downward, the release plate can abut against the release post.

[0009] Optionally, the storage cover assembly further includes a clamping plate and a push spring. The limiting mechanism includes a limiting block, which is telescopically mounted on the cover. Limiting grooves are provided on both sides of the storage cover compartment. The cover located in the storage cover compartment is slidably engaged with the limiting grooves through the limiting block. The clamping plate is slidably mounted on the storage cover compartment. The push spring acts on the clamping plate and is used to drive the clamping plate to push the cover.

[0010] Optionally, the base has a boss on its top, the cover can be snapped into the boss, the upper surface of the boss has a positioning groove for accommodating the circuit board, the outer side wall of the cover has a groove, and the base has a claw that can engage with the groove.

[0011] Optionally, the limiting mechanism further includes a linkage column and an extension spring. The linkage column is slidably mounted on the cover, and the extension spring is used to push the linkage column to extend downward relative to the cover. When the cover is snapped together with the boss, the linkage column can abut against the upper surface of the boss and retract relative to the cover. The linkage column is connected to the limiting block. When the linkage column retracts relative to the cover, it can drive the limiting block to retract relative to the cover and exit from the limiting groove.

[0012] Optionally, the linkage column is provided with a flange, the cover is provided with a groove for avoiding the flange, the extension spring is sleeved on the outside of the linkage column, the two ends of the extension spring abut against the end face of the flange and the end face of the groove respectively, the linkage column is provided with a pin, the limiting block is provided with an inclined groove, and the pin passes through the inclined groove.

[0013] Optionally, it also includes a tray, a push plate, and a push drive component. The tray is fixed on the frame, the push drive component is located on the frame, the push plate is connected to the push drive component, and the push drive component is used to drive the push plate to push and engage the cover on the base, so that the base is disengaged from the support column and moves onto the tray.

[0014] In summary, this application includes at least the following beneficial technical effects: When dispensing adhesive onto a circuit board, the circuit board is placed on a base, adhesive is dispensed onto the circuit board through a dispensing head, and after dispensing, it is connected to the base via a transfer mechanism. The base is then removed from the positioning seat and engaged with the cap in the storage compartment, thus sealing the circuit board on the base. Because the circuit board is immediately sealed with the cap after dispensing, it is isolated from dust, hair, fibers, and other impurities in the air before curing, preventing contamination of the adhesive on the circuit board and reducing the impact on its protective and reinforcing effects. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the dispensing device for circuit board processing in an embodiment of this application; Figure 2 This is a cross-sectional view from a first perspective of the dispensing device for circuit board processing in an embodiment of this application. Figure 3 for Figure 2 A magnified view of part A1 in the diagram; Figure 4 for Figure 2 A magnified view of part A2 in the middle; Figure 5 This is a cross-sectional view from a second perspective of the dispensing device for circuit board processing in an embodiment of this application. Figure 6 for Figure 5 A magnified view of part C1 in the middle; Figure 7 for Figure 5 A magnified view of part C2 in the middle; Figure 8 This is a cross-sectional view from a third perspective of the dispensing device for circuit board processing in an embodiment of this application. Figure 9 for Figure 8 A magnified view of part B in the middle section; Figure 10 This is a schematic diagram of the latch being inserted into the latch hole in an embodiment of this application; Figure 11 This is a schematic diagram of the cover and base being fastened together in an embodiment of this application.

[0016] Explanation of reference numerals in the attached figures: 10. Dispensing machine body; 11. Worktable; 12. Positioning seat; 121. Column; 13. Dispensing head; 14. XZ axis linear screw drive module; 15. Y axis linear screw drive module; 151. Slide table; 20. Frame; 21. Vertical guide rod; 22. Tripping post; 23. Horizontal guide sleeve; 30. Storage cover assembly; 31. Storage cover compartment; 311. Limiting groove; 312. Guide post; 313. First baffle; 32. Clamping plate; 321. Slider; 322. Sleeve; 323. Second baffle; 33. Push spring; 40. Cover; 41. Limiting block; 411. Inclined groove; 42. Groove; 43. Linkage column; 431. Flange; 432. Pin; 44. Extending spring; 45. Slide groove; 50. Base; 51. Positioning hole; 52. Hanging hole; 53. Locking tongue; 531. Locking groove; 54. Boss; 55. Positioning groove; 56. Claw; 60. Transfer mechanism; 61. Lifting seat; 611. Support column; 612. Sliding sleeve; 613. Locking tongue hole; 614. Guide groove; 615. Screw sleeve; 62. Vertical movement drive motor; 63. Vertical screw; 64. Wedge block; 641. Column; 642. Release plate; 65. Locking spring; 70. Support plate; 80. Push plate; 81. Horizontal slide bar; 90. Top push drive electric push rod. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1 - Appendix Figure 11 This application will be described in further detail below.

[0018] This application discloses a dispensing device for circuit board processing.

[0019] A dispensing device for circuit board processing includes a dispensing machine body 10, a frame 20, a storage cover assembly 30, a cover 40, a base 50, a transfer mechanism 60, a tray 70, a pusher plate 80, and a pusher drive component.

[0020] Reference Figures 1 to 7 The dispensing machine body 10 includes a worktable 11, a positioning seat 12, and a dispensing head 13. The worktable 11 is fixed on the frame 20. The positioning seat 12 is mounted on the worktable 11 via a Y-axis drive component. The Y-axis drive component can be a Y-axis linear screw drive module 15. The positioning seat 12 is fixed on the slide 151 of the Y-axis linear screw drive module 15. The dispensing head 13 is mounted on the worktable 11 via an XZ-axis drive component. The XZ-axis drive component can be an XZ-axis linear screw drive module 14.

[0021] The base 50 and the positioning seat 12 can be detachably connected. The base 50 is used to place the circuit board. More specifically, the positioning seat 12 is provided with a column 121, and the base 50 is provided with a positioning hole 51. The base 50 is sleeved on the column 121 through the positioning hole 51. The top of the base 50 is provided with a boss 54, and the upper surface of the boss 54 is provided with a positioning groove 55 for accommodating the circuit board.

[0022] The storage cover assembly 30 includes a storage cover chamber 31, a clamping plate 32, and a push spring 33. The storage cover chamber 31 is fixed on the frame 20. Multiple sets of covers 40 are provided and can be separated and placed in the storage cover chamber 31 through a limiting mechanism. In an optional embodiment, the specific structure of the limiting mechanism and its specific connection relationship with the cover 40 and the storage cover chamber 31 are as follows: The limiting mechanism includes a limiting block 41, a linkage column 43, and an extension spring 44. The limiting block 41 is telescopically provided on the cover 40. Limiting grooves 311 are provided on both sides of the storage cover chamber 31. The cover 40 located in the storage cover chamber 31 is slidably engaged with the limiting block 41 and the limiting groove 311.

[0023] The linkage column 43 is telescopically slidably mounted on the cover 40. An extension spring 44 is used to push the linkage column 43 downwards relative to the cover 40. More specifically, the linkage column 43 has a flange 431, and the cover 40 has a groove 45 for avoiding the flange 431. The extension spring 44 is sleeved on the outside of the linkage column 43, with its two ends abutting against the end faces of the flange 431 and the groove 45, respectively. The linkage column 43 is connected to the limiting block 41. More specifically, the linkage column 43 has a pin 432, and the limiting block 41 has a groove 411 through which the pin 432 passes.

[0024] The clamping plate 32 is slidably mounted on the storage compartment 31. A push spring 33 acts on the clamping plate 32. More specifically, the storage compartment 31 is provided with a guide post 312, the end of which is provided with a first baffle 313. The clamping plate 32 has sliders 321 slidably engaged in the limiting grooves 311 on both sides. Sleeves 322 are mounted on the sliders 321 and slidably fitted onto the outside of the guide post 312. A second baffle 323 is mounted on the sleeve 322. The push spring 33 is fitted onto the outside of the guide post 312, with its two ends abutting against the first baffle 313 and the second baffle 323, respectively. The push spring 33 drives the clamping plate 32 to push the caps 40, causing multiple sets of caps 40 within the storage compartment 31 to be tightly arranged and clamped between the clamping plate 32 and the compartment wall at one end of the storage compartment 31.

[0025] Reference Figure 1 , Figure 2 , Figure 5 , Figure 8 and Figure 9 The transfer mechanism 60 can be detachably connected to the base 50 via a locking mechanism, and can remove the base 50 from the positioning seat 12 and engage it with the cover 40 inside the storage compartment 31. In an optional embodiment, the specific structure of the transfer mechanism 60 and the locking mechanism is as follows: the transfer mechanism 60 includes a lifting seat 61, a vertical guide rod 21 is provided on the frame 20, and a sliding sleeve 612 is provided on the lifting seat 61. The lifting seat 61 is vertically slidably mounted on the vertical guide rod 21 of the frame 20 via the sliding sleeve 612. The frame 20 is equipped with a vertical movement drive for driving the lifting seat 61 to move vertically. The vertical movement drive includes a vertical movement drive motor 62 and a vertical screw 63. The lifting seat 61 is equipped with a screw sleeve 615. The vertical screw 63 is rotatably mounted on the frame 20 and screwed to the screw sleeve 615. The vertical movement drive motor 62 is fixed on the frame 20 and connected to the vertical screw 63. The vertical movement drive motor 62 can drive the vertical screw 63 to rotate. Under the interaction between the vertical screw 63 and the screw sleeve 615, the lifting seat 61 can be driven to move vertically.

[0026] The lifting seat 61 is provided with a horizontally arranged support column 611, and the base 50 is provided with a hook hole 52, through which the base 50 can be sleeved on the outside of the support column 611. A locking mechanism is provided on the lifting seat 61, and the locking mechanism includes a wedge block 64 and a locking spring 65. The lifting seat 61 is provided with a locking tongue hole 613, and the base 50 is provided with a locking tongue 53 that can be inserted into the locking tongue hole 613. The top of the locking tongue 53 is provided with a locking groove 531. The lifting seat 61 is provided with a guide groove 614, and the wedge block 64 is slidably disposed in the guide groove 614 on the lifting seat 61. The locking spring 65 is disposed on the lifting seat 61 and acts on the wedge block 64. More specifically, the wedge block 64 is provided with a column 641, and the locking spring 65 is sleeved on the outside of the column 641. The two ends of the locking spring 65 abut against the inner wall of the wedge block 64 and the guide groove 614, respectively.

[0027] When the locking tongue 53 is inserted into the locking tongue hole 613, the locking spring 65 can push the wedge block 64 to engage with the locking groove 531, thereby locking the base 50 and the lifting seat 61. The wedge block 64 has a release plate 642 on its column 641, and the frame 20 has a release post 22 along its vertical length. When the vertical movement drive drives the lifting seat 61 to move downward, the release plate 642 can abut against the release post 22, thereby pushing the wedge block 64 out of the locking groove 531 through the release plate 642, allowing the locking tongue 53 to exit from the locking tongue hole 613, and thus allowing the base 50 to separate from the lifting seat 61.

[0028] After the base 50 is locked and connected to the lifting seat 61, the lifting seat 61 can be driven upward by the vertical movement drive to make the base 50 engage with the cover 40 in the storage compartment 31. That is, the cover 40 can be snapped into place with the protrusion 54 on the base 50. The outer wall of the cover 40 is provided with a groove 42, and the base 50 is provided with a claw 56 that can engage with the groove 42. When the cover 40 is snapped into place with the protrusion 54, the linkage column 43 can abut against the upper surface of the protrusion 54 and retract relative to the cover 40. When the linkage column 43 retracts relative to the cover 40, it can drive the limiting block 41 to retract relative to the cover 40 and exit from the limiting groove 311, so that the cover 40 can be removed from the storage compartment 31.

[0029] The tray 70 is fixed on the frame 20 and located below the dispensing machine body 10. The tray 70 has a U-shaped cross-section. The push-drive component is located on the frame 20 and can be a push-drive electric push rod 90. The frame 20 is provided with a horizontal guide sleeve 23, and the push plate 80 is provided with a horizontal slide rod 81. The horizontal slide rod 81 slides through the horizontal guide sleeve 23. The push plate 80 is connected to the push-drive component, which is used to drive the push plate 80 to push the cover 40 that is fastened to the base 50, so that the base 50 is disengaged from the support column 611 and moves onto the tray 70.

[0030] The implementation principle of the dispensing device for circuit board processing in this embodiment is as follows: When dispensing glue onto the circuit board, the circuit board is placed in the positioning groove 55 of the base 50. Then, the position of the dispensing head 13 relative to the circuit board is controlled by the XZ axis drive and the Y axis drive, and glue is dispensed onto the circuit board through the dispensing head 13. (Refer to...) Figure 10 After the glue is applied, the positioning seat 12 and the base 50 are moved toward the lifting seat 61 by the Y-axis drive component, so that the base 50 is sleeved on the outside of the support column 611 through the hook hole 52, and the locking tongue 53 is inserted into the locking tongue hole 613. At the same time, the wedge block 64 is engaged with the locking groove 531, locking the base 50 and the lifting seat 61 together.

[0031] Next, the vertical drive unit moves the lifting seat 61 upward, thereby causing the base 50 to move upward and separate from the positioning seat 12. Then, the Y-axis drive unit drives the positioning seat 12 to reset. (Refer to...) Figure 11 The lifting seat 61 moves upward, causing the base 50 to snap into the cover 40 in the storage compartment 31 via the boss 54. At the same time, the claw 56 engages with the groove 42, locking the base 50 and the cover 40 together and sealing the circuit board on the base 50. When the cover 40 is snapped into the boss 54, the linkage column 43 abuts against the upper surface of the boss 54 and retracts relative to the cover 40. When the linkage column 43 retracts relative to the cover 40, the pin 432 pushes the inclined surface of the inclined groove 411, pushing the limit block 41 to retract relative to the cover 40 and exit from the limit groove 311, allowing the cover 40 to be removed from the storage compartment 31.

[0032] Next, the vertical movement drive unit moves the lifting seat 61, base 50, and cover 40 downwards until the bottom surface of the base 50 is flush with the upper surface of the support plate 70. During the downward movement, the trip plate 642 abuts against the trip post 22, pushing the trip plate 642 upwards relative to the lifting seat 61, thereby causing the wedge block 64 to disengage from the locking groove 531. Then, the push drive unit drives the push plate 80 to push the cover 40, which is fastened to the base 50, causing the base 50 to detach from the support post 611 and the lifting seat 61 and move onto the support plate 70. The circuit board sealed by the cover 40 is then placed on the support plate 70. After multiple circuit boards are glued, sealed by the cover 40, and transferred to the support plate 70, the sealed circuit boards are transferred to the curing equipment. The cover 40 is then opened, the circuit boards are removed, and placed in the curing equipment for curing. Because the circuit board is immediately sealed with a cap after dispensing, it is isolated from dust, hair, fibers and other impurities in the air before curing, thus preventing contamination of the adhesive on the circuit board and reducing the impact on its protective and reinforcing effects.

[0033] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dispensing device for circuit board processing, comprising a dispensing machine body (10), wherein the dispensing machine body (10) includes a worktable (11), a positioning seat (12), and a dispensing head (13), wherein the positioning seat (12) is mounted on the worktable (11) via a Y-axis drive member, and the dispensing head (13) is mounted on the worktable (11) via an XZ-axis drive member, characterized in that, Also includes: Rack (20); Storage cover assembly (30), the storage cover assembly (30) includes a storage cover compartment (31) fixed on the frame (20); The cap (40) is provided in multiple sets and can be separated and placed in the storage compartment (31) by a limiting mechanism; The base (50) is detachably connected to the positioning seat (12) and is used to place the circuit board. The transfer mechanism (60) is detachably connected to the base (50) via a locking mechanism and removes the base (50) from the positioning seat (12) to engage with the cover (40) inside the storage compartment (31).

2. The dispensing device for circuit board processing according to claim 1, characterized in that, The positioning seat (12) is provided with a column (121), the base (50) is provided with a positioning hole (51), the base (50) is sleeved on the column (121) through the positioning hole (51), the transfer mechanism (60) includes a lifting seat (61), the lifting seat (61) is slidably mounted on the frame (20) in the vertical direction, the frame (20) is provided with a vertical moving drive for driving the lifting seat (61) to move in the vertical direction, the lifting seat (61) is provided with a support column (611) arranged in the horizontal direction, the base (50) is provided with a hook hole (52), the base (50) can be sleeved on the outside of the support column (611) through the hook hole (52), and the locking mechanism is provided on the lifting seat (61).

3. The dispensing device for circuit board processing according to claim 2, characterized in that, The locking mechanism includes a wedge block (64) and a locking spring (65). The lifting seat (61) is provided with a locking tongue hole (613). The base (50) is provided with a locking tongue (53) that can be inserted into the locking tongue hole (613). The top of the locking tongue (53) is provided with a locking groove (531). The wedge block (64) is slidably disposed on the lifting seat (61). The locking spring (65) is disposed on the lifting seat (61) and acts on the wedge block (64). When the locking tongue (53) is inserted into the locking tongue hole (613), the locking spring (65) can push the wedge block (64) to engage with the locking groove (531). The wedge block (64) is provided with a release plate (642). The frame (20) is provided with a release post (22) along the vertical direction. When the vertical movement drive drives the lifting seat (61) to move down, the release plate (642) can abut against the release post (22).

4. The dispensing device for circuit board processing according to claim 1, characterized in that, The storage cover assembly (30) also includes a clamping plate (32) and a push spring (33). The limiting mechanism includes a limiting block (41), which is telescopically mounted on the cover (40). Limiting grooves (311) are provided on both sides of the storage cover chamber (31). The cover (40) located in the storage cover chamber (31) is slidably engaged with the limiting grooves (311) through the limiting block (41). The clamping plate (32) is slidably mounted on the storage cover chamber (31). The push spring (33) acts on the clamping plate (32) and is used to drive the clamping plate (32) to push the cover (40).

5. The dispensing device for circuit board processing according to claim 4, characterized in that, The base (50) has a boss (54) on its top. The cover (40) can be snapped into the boss (54). The upper surface of the boss (54) has a positioning groove (55) for accommodating the circuit board. The outer side wall of the cover (40) has a groove (42). The base (50) has a claw (56) that can engage with the groove (42).

6. The dispensing device for circuit board processing according to claim 5, characterized in that, The limiting mechanism also includes a linkage column (43) and an extension spring (44). The linkage column (43) is telescopically slidably disposed on the cover (40). The extension spring (44) is used to push the linkage column (43) to extend downward relative to the cover (40). When the cover (40) is snapped into the boss (54), the linkage column (43) can abut against the upper surface of the boss (54) and retract relative to the cover (40). The linkage column (43) is connected to the limiting block (41). When the linkage column (43) retracts relative to the cover (40), it can drive the limiting block (41) to retract relative to the cover (40) and exit from the limiting groove (311).

7. The dispensing device for circuit board processing according to claim 6, characterized in that, The linkage column (43) is provided with a flange (431), the cover (40) is provided with a groove (45) for avoiding the flange (431), the extension spring (44) is sleeved on the outside of the linkage column (43), and the two ends of the extension spring (44) abut against the end face of the flange (431) and the end face of the groove (45) respectively. The linkage column (43) is provided with a pin (432), the limiting block (41) is provided with a slanted groove (411), and the pin (432) passes through the slanted groove (411).

8. The dispensing device for circuit board processing according to claim 2, characterized in that, It also includes a tray (70), a push plate (80) and a push drive component. The tray (70) is fixed on the frame (20). The push drive component is located on the frame (20). The push plate (80) is connected to the push drive component. The push drive component is used to drive the push plate (80) to push and engage the cover (40) on the base (50), so that the base (50) is disengaged from the support column (611) and moves onto the tray (70).

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