CN210498678U

CN210498678U - Improved inlet mechanism of reflow soldering machine

Info

Publication number: CN210498678U
Application number: CN201921216543.1U
Authority: CN
Inventors: 张帅
Original assignee: Wuxi Mingwei Electronic Equipment Co ltd
Current assignee: Wuxi Mingwei Electronic Equipment Co ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-05-12
Anticipated expiration: 2029-07-30

Abstract

The utility model relates to a reflow soldering machine field specifically is a reflow soldering machine entry mechanism of improvement, the one end of welding machine main part is connected with the pay-off frame, be provided with the track on the pay-off frame, the top of welding machine main part and be close to pay-off frame department and be provided with the fan, the top of welding machine main part and the one side that is located the fan are provided with the cooler bin, and the top gomphosis of cooler bin has the fan, the one end of cooler bin is provided with the safety cover, and installs the compressor in the safety cover, the both sides welding of pay-off frame has the stand, swing joint has the scraper blade between the stand, the top level of stand is provided. This application flow distribution plate through the design can laminate the track under the drive of cylinder, and the tip through its tip can be shunted the PCB that the track was transported and was come, prevents that PCB from piling up together, is heated inhomogeneous problem when causing the later stage heating, utilizes the flow distribution plate to divide into PCB is automatic two sets ofly.

Description

Improved inlet mechanism of reflow soldering machine

Technical Field

The utility model relates to a reflow soldering machine field specifically is a reflow soldering machine entry mechanism of improvement.

Background

Reflow soldering machines, also known as reflow soldering machines or reflow ovens, are devices that reliably join surface mount components and PCB pads together through solder paste alloys by providing a heated environment that melts the solder paste.

The existing reflow soldering machine is divided into a drawer type and a through type, wherein the drawer type can only process a small amount of PCB, while the through type has a simple conveying mechanism at the inlet during processing, when more PCBs are processed, stacking can occur, and manual stacking is time-consuming. Accordingly, one skilled in the art provides an improved inlet mechanism for a reflow soldering machine to solve the above-mentioned problems in the background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reflow soldering machine entry mechanism of improvement to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a reflow soldering machine entry mechanism of improvement, includes the welding machine main part, the one end of welding machine main part is connected with the pay-off frame, be provided with the track on the pay-off frame, the top of welding machine main part just is close to pay-off frame department and is provided with the fan, the top of welding machine main part just is located one side of fan and is provided with the cooler bin, and the top gomphosis of cooler bin has the fan, the one end of cooler bin is provided with the safety cover, and installs the compressor in the safety cover.

As a further aspect of the present invention: the two sides of the feeding frame are welded with stand columns, scraping plates are movably connected between the stand columns, and the tops of the stand columns are horizontally provided with connecting frames.

As a further aspect of the present invention: the front end top horizontal welding of link has the mounting panel, the fixed cylinder that is equipped with on the mounting panel, and the output of cylinder runs through the mounting panel.

As a further aspect of the present invention: the output end of the air cylinder is connected with a splitter plate, the splitter plate is of a triangular structure, the distance between the two sides of the splitter plate and the two sides of the feeding frame is equal, and guide wheels are movably mounted on the two sides of the splitter plate.

As a further aspect of the present invention: the inboard laminating of wearing the clamp has the gasket, flow distribution plate and scraper blade highly equal apart from the track, and the scraper blade passes through the pivot activity to be fixed on the stand.

As a further aspect of the present invention: the bottom of fan is provided with the fixed plate, the bottom center department of fixed plate is provided with the air outlet, and the output of air outlet and fan is linked together, the periphery winding of air outlet has the heating pipe.

As a further aspect of the present invention: the cooling box is internally provided with a metal plate, the metal plate is formed by pressing a copper block, a condensing pipe is attached to the metal plate, and the input end of the condensing pipe is connected with the compressor.

Compared with the prior art, the beneficial effects of the utility model are that: this application can laminate the track through the flow distribution plate of design under the drive of cylinder, the tip through its tip can transport the PCB of coming with the track and shunt, prevent that PCB from piling up together, the inhomogeneous problem of being heated when causing the later stage heating, it is two sets ofly to utilize the flow distribution plate to divide into PCB automation, and because the both sides of flow distribution plate equal to the distance of work or material rest, this width only holds a PCB and passes through, so will sort in proper order when all PCBs pass through the flow distribution plate, unified direction, unified angle, be favorable to later stage reflow soldering, and the leading wheel that sets up on the flow distribution plate can rotate, make PCB can not receive the conflict, pass through smoothly through the leading wheel, the scraper blade that sets up at the flow distribution plate rear side, it only has a PCB thickness apart from the track, so if there are two or more than two PCB overlaps to place and will be directly.

Drawings

FIG. 1 is a schematic structural diagram of an inlet mechanism of a modified reflow soldering machine;

FIG. 2 is a schematic view of a heating mechanism in an inlet mechanism of a modified reflow soldering machine;

FIG. 3 is a schematic diagram of a cooling mechanism in an inlet mechanism of a modified reflow soldering machine.

In the figure: 1. a cylinder; 2. a connecting frame; 3. mounting a plate; 4. a fan; 5. a protective cover; 6. a fan; 7. a cooling tank; 8. a welder body; 9. a column; 10. a squeegee; 11. a guide wheel; 12. a flow distribution plate; 13. a crawler belt; 14. a feeding frame; 15. a fixing plate; 16. an air outlet; 17. heating a tube; 18. a metal plate; 19. a condenser tube; 20. a compressor.

Detailed Description

Please refer to fig. 1-3, in an embodiment of the present invention, an improved inlet mechanism of a reflow soldering machine, includes a soldering machine main body 8, one end of the soldering machine main body 8 is connected with a feeding frame 14, a track 13 is provided on the feeding frame 14, a fan 4 is provided at the top of the soldering machine main body 8 and near the feeding frame 14, a cooling box 7 is provided at the top of the soldering machine main body 8 and at one side of the fan 4, and a fan 6 is embedded at the top of the cooling box 7, a protection cover 5 is provided at one end of the cooling box 7, and a compressor 20 is installed in the protection cover 5.

In the second drawing, the two sides of the feeding frame 14 are welded with the upright posts 9, the upright posts 9 are fixing parts and mainly play a role in providing mounting fulcrums for the scrapers 10 and providing welding fixing fulcrums for the connecting frame 2, the scrapers 10 are movably connected between the upright posts 9, and the distance between the scrapers 10 and the crawler 13 is only one PCB (printed circuit board) in thickness, so that if two or more PCBs are overlapped, the PCBs can be directly scraped, the connecting frame 2 is horizontally arranged at the top of the upright posts 9, and the connecting frame 2 is used for providing fixing points for the mounting plate 3;

in the second drawing, a mounting plate 3 is horizontally welded at the top of the front end of a connecting frame 2, the mounting plate 3 is used for fixing and supporting a cylinder 1 and is a mounting fulcrum of the cylinder 1, the cylinder 1 is fixedly arranged on the mounting plate 3, the cylinder 1 is an adjusting part, the main function is that the cylinder 1 drives a splitter plate 12 to move up and down, so that the splitter plate 12 can split the PCBs with different stacking heights, and the output end of the cylinder 1 penetrates through the mounting plate 3;

in the second drawing, the output end of the cylinder 1 (model number is MAL25-50) is connected with the splitter plate 12, the splitter plate 12 mainly plays a role in splitting, the PCBs are automatically split into two groups by the splitter plate 12, and because the distance from the two sides of the splitter plate 12 to the feeding frame 14 is equal, only one PCB can pass through the width, when all PCBs pass through the splitter plate 12, the PCBs are sequentially sequenced, the direction and the angle are unified, the later reflow soldering is facilitated, the splitter plate is applied to a water splitting fish mouth structure of a river weir in the four cities, the working principle is the same, the splitter plate 12 is in a triangular structure, the splitting is realized by the structure with the smaller front part and the larger back part, the distances from the two sides of the splitter plate 12 to the two sides of the feeding frame 14 are equal, the guide wheels 11 are movably mounted on the two sides of the splitter plate 12, and the guide wheels 11 can rotate, so that the PCBs;

in the second figure, the height of the splitter plate 12 and the scraper 10 from the crawler 13 is equal, and the scraper 10 is movably fixed on the upright post 9 through the rotating shaft, the design has the advantages that the height of the splitter plate 12 and the height of the scraper 10 from the crawler 13 are both only the thickness of one PCB, so that the stacking phenomenon of only one PCB can be avoided when the PCB passes through each time, and the scraper 10 is movably fixed on the upright post 9 through the rotating shaft so as to enable the scraper 10 to rotate and prevent the PCB from being damaged by hard contact;

in the second drawing, a fixing plate 15 is arranged at the bottom end of the fan 4, the fixing plate 15 is used for fixing the whole cooling system, an air outlet 16 is arranged at the center of the bottom end of the fixing plate 15, the air outlet 16 enables hot air to be gathered and not scattered, the hot air directly acts on a PCB, the effect of rapid melting can be achieved, the air outlet 16 is communicated with the output end of the fan 4, a heating pipe 17 is wound on the periphery of the air outlet 16, and the heating pipe 17 plays a heating role;

in the second drawing, a metal plate 18 is arranged in the cooling box 7, and the metal plate 18 is formed by pressing a copper block, because the heat conductivity and the cold conducting property of copper are very good, the cold air produced by the condensation pipe 19 can be diffused into the cooling box 7 through the metal plate 18 for the purpose of quickly cooling, the condensation pipe 19 is attached to the metal plate 18, the condensation pipe 19 is used for conveying the cold air, the input end of the condensation pipe 19 is connected with the compressor 20, and the compressor 20 produces the cold air.

The utility model discloses a theory of operation is: when the PCB distributing device is used, a PCB is placed on the crawler 13, then the crawler 13 carries the PCB to convey, when the PCB is conveyed to the distributing plate 12, because the distributing plate 12 is of a triangular structure, the front end of the distributing plate is small, the rear end of the distributing plate is large, all the PCBs are automatically divided into two groups, and because the distances from the two sides of the distributing plate 12 to the material feeding frame 14 are equal, the width only allows one PCB to pass through, when all the PCBs pass through the distributing plate 12, the PCBs can be sequentially sequenced, the direction and the angle are unified, the later reflow soldering is facilitated, the distributing principle is applied to the water distributing fish mouth structure of the Sichuan river weir, the working principle is the same, the guide wheels 11 are movably arranged on the two sides of the distributing plate 12, the guide wheels 11 can rotate, the PCBs cannot be collided, the PCBs can pass through the guide wheels 11 smoothly, when the PCBs are conveyed continuously after being distributed, the heights of the PCBs are restricted by, therefore, if two or more PCBs are overlapped and placed, the PCBs are directly scraped, then the PCBs enter the welder body 8, the PCBs are heated in the welder body 8 through the heating pipe 17, hot air is blown onto the PCBs through the fan 4 to melt solder paste, so that the PCBs with surface mounted components are welded, then the PCBs reach the cooling box 7, the compressor 20 (model SV-300A-2) conveys cold air into the cooling box 7 through the condensing pipe 19, the cold air fills the whole cooling box 7 through the metal plate 18, and then the cold air is blown through the fan 6 to complete the cooling of the PCBs.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An improved inlet mechanism of a reflow soldering machine, which comprises a soldering machine main body (8), and is characterized in that: the one end of welding machine main part (8) is connected with pay-off frame (14), be provided with track (13) on pay-off frame (14), the top of welding machine main part (8) just is close to pay-off frame (14) department and is provided with fan (4), the top of welding machine main part (8) just is located one side of fan (4) and is provided with cooler bin (7), and the top gomphosis of cooler bin (7) has fan (6), the one end of cooler bin (7) is provided with safety cover (5), and installs compressor (20) in safety cover (5).

2. The improved inlet mechanism of the reflow soldering machine according to claim 1, wherein two sides of the feeding frame (14) are welded with upright columns (9), a scraper (10) is movably connected between the upright columns (9), and the top of each upright column (9) is horizontally provided with a connecting frame (2).

3. An improved inlet mechanism of a reflow soldering machine according to claim 2, wherein a mounting plate (3) is horizontally welded on the top of the front end of the connecting frame (2), the mounting plate (3) is fixedly provided with the cylinder (1), and the output end of the cylinder (1) penetrates through the mounting plate (3).

4. An improved inlet mechanism of a reflow soldering machine according to claim 3, wherein the output end of the cylinder (1) is connected with a splitter plate (12), the splitter plate (12) is in a triangular structure, the distance between two sides of the splitter plate (12) and two sides of the feeding rack (14) is equal, and guide wheels (11) are movably mounted on two sides of the splitter plate (12).

5. An improved inlet mechanism of a reflow soldering machine according to claim 4, wherein the height of the splitter plate (12) and the scraper (10) from the crawler (13) is equal, and the scraper (10) is movably fixed on the upright (9) through a rotating shaft.

6. The improved inlet mechanism of the reflow soldering machine according to claim 1, wherein a fixing plate (15) is disposed at the bottom end of the fan (4), an air outlet (16) is disposed at the center of the bottom end of the fixing plate (15), the air outlet (16) is communicated with the output end of the fan (4), and a heating pipe (17) is wound around the periphery of the air outlet (16).

7. An improved inlet mechanism of a reflow soldering machine according to claim 1, wherein a metal plate (18) is arranged in the cooling box (7), the metal plate (18) is formed by pressing a copper block, a condensation pipe (19) is attached to the metal plate (18), and an input end of the condensation pipe (19) is connected with the compressor (20).