Self-cleaning mechanism for reflow soldering

Abstract

The utility model discloses a self-cleaning mechanism for reflow soldering, which relates to the technical field of reflow soldering, and is characterized in that the self-cleaning mechanism comprises a reflow soldering equipment shell, and a transmission belt conveyor used for conveying a circuit board into the reflow soldering equipment shell is mounted at an opening area of the reflow soldering equipment shell; a transmission belt used on the transmission belt conveyor is a stainless steel plate chain conveying belt, a fixing part used for fixing a circuit board in the reflow soldering equipment shell is installed at the top end of the reflow soldering equipment shell in an embedded mode, and a soldering part controlled by a mechanical arm is arranged in the reflow soldering equipment shell. A recovery groove seat is detachably connected to the front portion of the reflow soldering equipment shell, a transverse plate is welded to the inner side wall of the recovery groove seat, and a scraping plate is installed at the top end of the transverse plate, so that the reflow soldering equipment has the effects that self-cleaning of reflow soldering is achieved, manual scraping is not needed, and manpower is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of reflow soldering, and more specifically, to a self-cleaning mechanism for reflow soldering. Background Art

[0002] Reflow soldering is an electronic soldering technology mainly used for soldering components in surface mount technology. It is particularly suitable for the connection between chips and substrates, and can also be used on circuit boards, but it is not suitable for tiny or narrow-pitch components. This soldering method is commonly used in the production of electronic devices such as computers, mobile phones and medical devices.

[0003] When the transmission circuit board is undergoing reflow soldering, it is input into the reflow soldering equipment through a conveying device, and processed through the welding components inside the reflow soldering equipment shell. A fixing component is installed on the conveying device to fix the current welding (to avoid displacement due to force during the reflow soldering process). However, during the reflow soldering process, residues will be more or less attached to the conveying device, which needs to be manually scraped off, which is more labor-intensive.

[0004] Therefore, in order to solve the above technical problems, the present application proposes a self-cleaning mechanism for reflow soldering. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a self-cleaning mechanism for reflow soldering.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transmission belt conveyor for conveying circuit boards into the interior of the reflow soldering equipment shell is installed at the opening area of ​​the reflow soldering equipment shell, the transmission belt used on the transmission belt conveyor is a stainless steel plate chain conveyor belt, a fixing component for fixing the circuit board inside the reflow soldering equipment shell is embedded at the top of the reflow soldering equipment shell, the interior of the reflow soldering equipment shell is equipped with a welding component controlled by a robotic arm, a recovery tank seat is detachably connected to the front of the reflow soldering equipment shell, a horizontal plate is welded on the inner side wall of the recovery tank seat, and a scraper is installed on the top of the horizontal plate.

[0007] Preferably, the fixing component comprises a lower opening shell embedded and fixed on the top of the reflow soldering equipment shell, the inner top of the lower opening shell is fixedly connected with an electric hydraulic rod, the transmission part of the electric hydraulic rod is fixedly connected with a lifting plate, and the side end of the lifting plate is fixedly connected with a fixing frame.

[0008] Preferably, groove seats are welded on both sides of the reflow soldering equipment shell, connecting blocks are fixedly connected to both sides of the side ends of the recovery groove seat, threaded rods are fixedly connected to the side ends of the connecting blocks, and through holes are opened on the side ends of the groove seat for the threaded rods to pass through, so as to facilitate the replacement of the recovery groove seat.

[0009] Preferably, the top end of the transverse plate is detachably connected to a scraper via screws, and the scraper can be replaced when worn.

[0010] Preferably, the reflow soldering equipment housing and the bottom of the transmission belt conveyor are fixedly connected with a cast iron counterweight base, and the cast iron counterweight base can stably support the device.

[0011] Preferably, a side plate is rotatably connected to the side end of the recovery tank seat, and the side plate is fixed to the side of the recovery tank seat by a magnetic buckle, so as to facilitate cleaning of the internal residue of the recovery tank seat.

[0012] Preferably, a handle for facilitating pulling and rotating the side panel is fixedly connected to the surface of the side panel.

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

[0014] 1. The utility model installs a fixing component on the housing of the reflow soldering equipment, and inputs the circuit board into the housing of the reflow soldering equipment through the stainless steel plate chain conveyor belt on the transmission belt conveyor. When it reaches the appropriate position, the circuit board is pressed by the fixing component. After the circuit board is fixed, the welding component can be controlled by the mechanical arm to perform reflow soldering on the fixed circuit board. After the reflow soldering is completed, the fixation is released, and then the circuit board is conveyed from the rear of the housing of the reflow soldering equipment through the transmission belt conveyor, thereby completing the processing. When the stainless steel plate chain conveyor belt reaches the scraper position, the scraper can scrape off the attached residues on the stainless steel plate chain conveyor belt, and the scraped residues fall into the recovery slot due to gravity, thereby realizing self-cleaning of the reflow soldering, and no manual scraping is required, which saves manpower, thereby solving the problem that during the reflow soldering process, more or less residues will be attached to the conveying device, which needs to be manually scraped off, which is more labor-intensive.

[0015] 2. In the normal state, the side plate of the utility model is close to the side end of the recycling tank seat and is fixed by a magnetic buckle, thereby blocking the opening on that side. When a large amount of residue enters the recycling tank seat, the side plate can be pulled and rotated by the handle to release the fixation of the magnetic buckle, thereby opening the opening on that side of the recycling tank seat, so that the staff can brush out the residue inside the recycling tank seat with a brush and clean the inside of the recycling tank seat.

[0016] 3. The recycling tank seat and scraper of the utility model are both detachable and can be replaced when damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the lower opening shell of the utility model;

[0020] Figure 3 It is a schematic diagram of the connection structure between the groove seat and the connection block in the utility model.

[0021] In the figure: 1. Reflow soldering equipment housing; 2. Drive belt conveyor; 3. Fixed parts; 301. Lower opening shell; 302. Electric hydraulic rod; 303. Lifting plate; 304. Fixed frame; 4. Recovery slot seat; 5. Horizontal plate; 6. Scraper; 7. Groove seat; 8. Connecting block; 9. Threaded rod; 10. Through hole; 11. Cast iron counterweight base; 12. Side plate; 13. Handle. DETAILED DESCRIPTION

[0022] like Figure 1-3 As shown, the utility model provides a self-cleaning mechanism for reflow soldering, including a reflow soldering equipment housing 1, a transmission belt conveyor 2 for conveying circuit boards into the interior of the reflow soldering equipment housing 1 is installed at the opening area of ​​the reflow soldering equipment housing 1, the transmission belt used on the transmission belt conveyor 2 is a stainless steel plate chain conveyor belt, a fixing component 3 for fixing the circuit board inside the reflow soldering equipment housing 1 is embedded at the top of the reflow soldering equipment housing 1, the interior of the reflow soldering equipment housing 1 is equipped with a welding component controlled by a robot arm, a recovery tank seat 4 is detachably connected to the front of the reflow soldering equipment housing 1, a horizontal plate 5 is welded on the inner side wall of the recovery tank seat 4, and a scraper 6 is installed on the top of the horizontal plate 5.

[0023] The fixing component 3 includes a lower opening shell 301 embedded and fixed on the top of the reflow soldering equipment housing 1, and the inner top of the lower opening shell 301 is fixedly connected with an electric hydraulic rod 302, and the transmission part of the electric hydraulic rod 302 is fixedly connected with a lifting plate 303, and the side end of the lifting plate 303 is fixedly connected with a fixed frame 304, that is, the lifting plate 303 is driven to move downward by the electric hydraulic rod 302, and the lifting plate 303 drives the fixed frame 304 to move downward, and the fixed frame 304 presses the circuit board downward. The central opening area of ​​the fixed frame 304 is used for reflow soldering of the circuit board.

[0024] The side end of the recovery tank seat 4 is rotatably connected with a side plate 12, and the side plate 12 is fixed to the side of the recovery tank seat 4 through a magnetic buckle. The surface of the side plate 12 is fixedly connected with a handle 13 for facilitating pulling and rotating it.

[0025] In the normal state, the side plate 12 is close to the side end of the recovery tank seat 4 and is fixed by a magnetic buckle, thereby blocking the opening on this side. When a large amount of residue enters the recovery tank seat 4, the side plate 12 can be pulled and rotated by the handle 13 to release the fixation of the magnetic buckle, thereby opening the opening on this side of the recovery tank seat 4, so that it is convenient for the staff to brush out the residue inside the recovery tank seat 4 with a brush and clean the inside of the recovery tank seat 4.

[0026] The following is the specific structure of the detachable recovery slot seat 4: groove seats 7 are welded on both sides of the reflow soldering equipment shell 1, and connecting blocks 8 are fixedly connected to both sides of the side ends of the recovery slot seat 4. The side ends of the connecting blocks 8 are fixedly connected to threaded rods 9, and the side ends of the groove seat 7 are provided with through holes 10 for the threaded rods 9 to pass through.

[0027] That is, insert the connecting block 8 on the recovery groove seat 4 into the groove seat 7. After the insertion is completed, the threaded rod 9 on the connecting block 8 just passes through the through hole 10 on the groove seat 7. Then, turn the nut clockwise to install the nut on the threaded rod 9. The nut moves along the threaded rod 9 and slowly presses against the side end of the groove seat 7, thereby completing the fixation of the connecting block 8 and the groove seat 7. Then, the recovery groove seat 4 is installed on the reflow soldering equipment housing 1. Turn the nut counterclockwise to remove the nut from the threaded rod 9, and then pull the connecting block 8 on the recovery groove seat 4 out of the groove seat 7 to complete its disassembly. The disassembly and assembly are very convenient, so it is convenient to replace the recovery groove seat 4 when it is damaged.

[0028] The top end of the transverse plate 5 is detachably connected to the scraper plate 6 via screws, so that the scraper plate 6 and the transverse plate 5 are also detachable and can be replaced when the scraper plate 6 is worn.

[0029] The reflow soldering equipment housing 1 and the bottom of the transmission belt conveyor 2 are fixedly connected with a cast iron counterweight base 11, and the cast iron counterweight base 11 has a certain weight to stably support the device.

[0030] It should be noted that the utility model relates to a self-cleaning mechanism for reflow soldering, in which a fixing component 3 is installed on a housing 1 of a reflow soldering device (if the fixing component 3 is installed on a conveying device, it is easy to block a scraper 6, and self-cleaning cannot be performed, and it can only be cleaned manually). The circuit board is input into the housing 1 of the reflow soldering device through the stainless steel plate chain conveyor belt on the transmission belt conveyor 2. When it reaches a suitable position, the circuit board is pressed by the fixing component 3. After the circuit board is fixed, the welding component can be controlled by a mechanical arm to perform reflow soldering on the fixed circuit board. After the reflow soldering is completed, the fixation is released and the circuit board is transmitted from the rear of the housing 1 of the reflow soldering device through the transmission belt conveyor 2, thereby completing the processing. When the stainless steel plate chain conveyor belt reaches the position of the scraper 6, the scraper 6 can scrape off the attached residue on the stainless steel plate chain conveyor belt, and the scraped residue falls into the recovery slot 4 due to gravity, thereby realizing self-cleaning of the reflow soldering, and no manual scraping is required, saving manpower.

[0031] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A self-cleaning mechanism for reflow soldering, comprising a reflow soldering equipment housing (1), characterized in that: A transmission belt conveyor (2) for conveying circuit boards into the reflow soldering equipment housing (1) is installed at the opening area of ​​the reflow soldering equipment housing (1), and the transmission belt used on the transmission belt conveyor (2) is a stainless steel plate chain conveyor belt. A fixing component (3) for fixing the circuit board inside the reflow soldering equipment housing (1) is embedded at the top of the reflow soldering equipment housing (1). The interior of the reflow soldering equipment housing (1) is equipped with a welding component controlled by a robot arm. A recovery tank seat (4) is detachably connected to the front of the reflow soldering equipment housing (1), and a horizontal plate (5) is welded on the inner side wall of the recovery tank seat (4), and a scraper (6) is installed at the top of the horizontal plate (5).

2. A self-cleaning mechanism for reflow soldering according to claim 1, characterized in that: The fixing component (3) comprises a lower opening shell (301) embedded and fixed on the top of the reflow soldering equipment housing (1); the inner top of the lower opening shell (301) is fixedly connected to an electric hydraulic rod (302); the transmission part of the electric hydraulic rod (302) is fixedly connected to a lifting plate (303); and the side end of the lifting plate (303) is fixedly connected to a fixing frame (304).

3. A self-cleaning mechanism for reflow soldering according to claim 1, characterized in that: Grooved seats (7) are welded on both sides of the reflow soldering equipment housing (1), connecting blocks (8) are fixedly connected to both sides of the side ends of the recovery groove seat (4), threaded rods (9) are fixedly connected to the side ends of the connecting blocks (8), and through holes (10) are provided on the side ends of the groove seat (7) for the threaded rods (9) to pass through.

4. The self-cleaning mechanism for reflow soldering according to claim 1, characterized in that: The top end of the transverse plate (5) is detachably connected to a scraper plate (6) via screws.

5. The self-cleaning mechanism for reflow soldering according to claim 1, characterized in that: The reflow soldering equipment housing (1) and the bottom of the transmission belt conveyor (2) are fixedly connected with a cast iron counterweight base (11).

6. A self-cleaning mechanism for reflow soldering according to claim 1, characterized in that: The side end of the recovery tank seat (4) is rotatably connected to a side plate (12), and the side plate (12) is fixed to the side of the recovery tank seat (4) by means of a magnetic buckle.

7. A self-cleaning mechanism for reflow soldering according to claim 6, characterized in that: The surface of the side plate (12) is fixedly connected to a handle (13) for facilitating pulling and rotating the side plate (12).

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