A reflow oven air outlet device that is easy to install

Abstract

The utility model discloses an air outlet device for a reflow furnace that is easy to install, and belongs to the technical field of circuit board processing equipment, comprising a reflow furnace body, an air outlet is provided on the side of the reflow furnace body, a plurality of air inlets are provided on the outer side of the reflow furnace body, a U-shaped plug-in frame is fixedly connected to the outer side of the reflow furnace body, a rubber pad is fixedly connected to the inner side of the U-shaped plug-in frame, an insert plate is sleeved in the inner cavity of the U-shaped plug-in frame, two exhaust mechanisms are arranged on the insert plate, and a cover plate is arranged on the top of the reflow furnace body. In the utility model, through the coordinated use of the U-shaped plug-in frame, the rubber pad and the plug-in plate, when installing the plug-in plate, the plug-in plate is directly placed in the U-shaped plug-in frame, the U-shaped plug-in frame is used to support the plug-in plate, and the rubber pad is used to squeeze and fix the plug-in plate, so as to realize convenient installation of the plug-in plate, and the installation structure is simple, the production cost is low, and its practicality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing equipment, and more specifically to an air outlet device for a reflow furnace which is easy to install. Background Art

[0002] The reflow oven remelts the paste solder pre-distributed to the printed circuit board pads to achieve the mechanical and electrical connection between the solder ends or pins of surface mounted components and the printed circuit board pads. The reflow oven is needed in the process of PCB circuit board processing. The side of the reflow oven is equipped with air outlets to discharge heat.

[0003] After searching, the utility model patent with announcement number CN212191640U discloses an air outlet device of a reflow furnace, including a body, a mounting column and a latch, a cover plate is arranged on one side of the body, a hinge is connected to the bottom of the cover plate, wherein a mounting plate is arranged on one side of the hinge, an air outlet is arranged on one side of the mounting plate, a fan blade is arranged inside the air outlet, and a protective cover is arranged on one side of the fan blade; the air outlet device of the reflow furnace divides the protective cover into several areas by a bracket and an adjustment frame, so that the gap on the protective cover becomes smaller to prevent insects from entering the body through the protective cover, when the spring extends upward, it drives the card block to move upward through the linkage block, so that the top of the card block pops out from the top open end of the mounting column, so as to facilitate the disassembly and cleaning of the mounting plate at a later time, and the mounting plate is connected to the mounting column through the connection between the card block and the card slot, so that the mounting plate can be easily fixed to one side of the body, which is convenient for on-site installation.

[0004] However, the above patents still have the following shortcomings: the installation of the mounting plate requires the installation of springs, linkage blocks, latches and other structures in the mounting column, which is relatively complex and affects the production cost; in addition, when not in use, the air outlet cannot be completely blocked, and dust and moisture in the air will enter from the air outlet, which is not practical. For this reason, we propose a reflow oven air outlet device that is easy to install. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model aims to provide an air outlet device for a reflow furnace which is easy to install.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] A reflow furnace air outlet device that is easy to install comprises a reflow furnace body, an air outlet is provided on the side of the reflow furnace body, a plurality of air inlets are provided on the outer side of the reflow furnace body, a U-shaped plug-in frame is fixedly connected to the outer side of the reflow furnace body, a rubber pad is fixedly connected to the inner side of the U-shaped plug-in frame, an inner cavity of the U-shaped plug-in frame is sleeved with a plug-in plate, two exhaust mechanisms are arranged on the plug-in plate, and a cover plate is arranged on the top of the reflow furnace body.

[0008] As a preferred scheme of the utility model, the exhaust mechanism includes an exhaust pipe threadedly mounted on the plug plate, an exhaust fan is fixedly mounted on the tail end of the inner cavity of the exhaust pipe, a limiting ring is fixedly connected to the inner wall of the exhaust pipe, a filter screen is sleeved on the inner cavity of the exhaust pipe, the side surface of the filter screen is fitted with the side surface of the limiting ring, a cross mounting frame is threadedly mounted on the front end of the inner cavity of the exhaust pipe, a turntable is rotatably connected to the middle part of the cross mounting frame, the end of the turntable shaft extends to the inner side of the cross mounting frame and is fixedly connected to the cross rotating frame, the side surfaces of the cross rotating frame and the side surfaces of the cross mounting frame are respectively fixedly connected with fan-shaped elastic cloth, a plurality of screw holes are opened on the end surface of the cross mounting frame, a butterfly screw is sleeved on the turntable, and the end of the butterfly screw is threadedly mounted to the inner cavity of a screw hole.

[0009] As a preferred solution of the utility model, an internal threaded hole is provided on the outer side of the plug plate, and a first external threaded groove is provided on the outer side of the exhaust pipe, and the first external threaded groove and the internal threaded hole are matched with each other.

[0010] As a preferred solution of the utility model, a second internal thread groove is provided on the inner wall of one end of the exhaust pipe, and a second external thread groove is provided on the outer side of the cross mounting frame, and the second external thread groove and the second internal thread groove are matched.

[0011] As a preferred solution of the utility model, a plurality of handles are fixedly connected to the top surface of the plug board.

[0012] As a preferred solution of the utility model, a push post is fixedly connected to the end surface of the cross rotating frame, and the end of the push post is in contact with the middle part of the filter screen.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) In the present invention, the U-shaped plug-in frame, the rubber pad and the plug-in board are used in combination. When installing the plug-in board, the plug-in board is directly placed in the U-shaped plug-in frame, the U-shaped plug-in frame is used to support the plug-in board, and the rubber pad is used to squeeze and fix the plug-in board, so that the plug-in board can be easily installed. The installation structure is simple and the production cost is low.

[0015] (2) In the utility model, the exhaust duct is installed on the plug plate through the cooperation between the internal thread hole and the first external thread groove, a filter is placed in the exhaust duct, and the cross mounting frame is installed in the exhaust duct through the cooperation between the second internal thread groove and the second external thread groove, and the filter is fixed by a push column. At the same time, the exhaust mechanism can be disassembled for cleaning. In addition, when the exhaust fan is used to extract the heat in the reflow furnace body, the turntable can be rotated to drive the cross rotating frame to rotate, and the cross rotating frame can be used to stretch the fan-shaped elastic cloth, so as to adjust the exhaust space at the end of the exhaust duct, and the turntable and the cross rotating frame are fixed by the cooperation between the butterfly screw and the screw hole. In addition, when the machine is stopped, the fan-shaped elastic cloth completely blocks the end of the exhaust duct to prevent dust from entering, which is convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is an exploded view of the overall structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the U-shaped insert frame of the utility model;

[0019] Figure 4 This is an exploded view of the structure of the plug board and the exhaust pipe of the utility model;

[0020] Figure 5 It is a structural explosion diagram of the exhaust mechanism of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the cross mounting frame of the utility model;

[0022] Figure 7 It is a structural schematic diagram of the cross rotating frame of the utility model.

[0023] Description of the numbers in the figure:

[0024] 1. Reflow furnace body; 2. Air outlet; 3. U-shaped plug-in frame; 4. Rubber pad; 5. Plug-in board; 6. Exhaust mechanism; 7. Air inlet; 8. Handle; 9. Exhaust duct; 10. Limiting ring; 11. Filter; 12. Cross mounting frame; 13. Turntable; 14. Cross rotating frame; 15. Fan-shaped elastic cloth; 16. Screw hole; 17. Butterfly screw; 18. Push column; 19. Cover plate; 20. Internal thread hole; 21. First external thread groove; 22. Exhaust fan; 23. Second internal thread groove; 24. Second external thread groove. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Example:

[0029] See also Figure 1-7 A reflow furnace air outlet device that is easy to install includes a reflow furnace body 1, an air outlet 2 is opened on the side of the reflow furnace body 1, a plurality of air inlets 7 are opened on the outer side of the reflow furnace body 1, a U-shaped plug-in frame 3 is fixedly connected to the outer side of the reflow furnace body 1, a rubber pad 4 is fixedly connected to the inner side of the U-shaped plug-in frame 3, an inner cavity of the U-shaped plug-in frame 3 is sleeved with a plug-in plate 5, two exhaust mechanisms 6 are arranged on the plug-in plate 5, and a cover plate 19 is arranged on the top of the reflow furnace body 1.

[0030] In this embodiment, the rubber pad 4 is used to ensure the sealing between the plug board 5 and the U-shaped plug frame 3 , and at the same time ensure the stability of the plug board 5 in the U-shaped plug frame 3 .

[0031] For details, please refer to Figures 1 to 7The exhaust mechanism 6 includes an exhaust pipe 9 threadedly mounted on the plug plate 5, an exhaust fan 22 is fixedly mounted at the tail end of the inner cavity of the exhaust pipe 9, a limit ring 10 is fixedly connected to the inner wall of the exhaust pipe 9, a filter screen 11 is sleeved in the inner cavity of the exhaust pipe 9, and the side of the filter screen 11 is fitted with the side of the limit ring 10, a cross mounting frame 12 is threadedly mounted at the front end of the inner cavity of the exhaust pipe 9, a turntable 13 is rotatably connected to the middle part of the cross mounting frame 12, the end of the rotating shaft of the turntable 13 extends to the inner side of the cross mounting frame 12 and is fixedly connected to a cross rotating frame 14, and fan-shaped elastic cloth 15 is fixedly connected to the side of the cross rotating frame 14 and the side of the cross mounting frame 12 respectively, a plurality of screw holes 16 are opened on the end face of the cross mounting frame 12, a butterfly screw 17 is sleeved on the turntable 13, and the end of the butterfly screw 17 is threadedly mounted to the inner cavity of a screw hole 16.

[0032] In this embodiment, the filter screen 11 is supported by the limiting ring 10 and fixed by the push pin 18 .

[0033] For details, please refer to Figure 4 An internal thread hole 20 is provided on the outer side of the plug plate 5, and a first external thread groove 21 is provided on the outer side of the exhaust pipe 9, and the first external thread groove 21 and the internal thread hole 20 are adapted to each other.

[0034] In this embodiment, the exhaust pipe 9 is installed on the plug board 5 through the cooperation between the internal thread hole 20 and the first external thread groove 21 .

[0035] For details, please refer to Figure 5 A second internal thread groove 23 is provided on the inner wall of one end of the exhaust pipe 9, and a second external thread groove 24 is provided on the outer side of the cross mounting frame 12, and the second external thread groove 24 and the second internal thread groove 23 are adapted to each other.

[0036] In this embodiment, the cross mounting frame 12 is mounted on the exhaust pipe 9 through the cooperation of the second internal thread groove 23 and the second external thread groove 24 .

[0037] For details, please refer to Figure 4 A plurality of handles 8 are fixedly connected to the top surface of the inserting plate 5 .

[0038] In this embodiment, the plug board 5 is pulled by the handle 8 and the plug board 5 can be lifted from the U-shaped plug frame 3 to realize the disassembly and assembly of the plug board 5.

[0039] For details, please refer to Figure 5 and Figure 7 A push post 18 is fixedly connected to the end surface of the cross rotating frame 14 , and the end of the push post 18 is in contact with the middle of the filter screen 11 .

[0040] In this embodiment, the filter screen 11 is squeezed and fixed by using the push pin 18 .

[0041] Working principle: When in use, first put the plug board 5 on the U-shaped plug frame 3, and use the rubber pad 4 to squeeze the plug board 5 so that the two sides of the plug board 5 are respectively fitted with the outer side of the reflow furnace body 1 and the inner side of the rubber pad 4, so that the plug board 5 is installed on the U-shaped plug frame 3, and then the exhaust pipe 9 is installed on the plug board 5 through the cooperation between the internal thread hole 20 and the first external thread groove 21, and the filter screen 11 is placed in the exhaust pipe 9, and the cross mounting frame 12 is installed in the exhaust pipe 9 through the cooperation between the second internal thread groove 23 and the second external thread groove 24, and then the exhaust fan 2 is started. 2 extracts the heat in the reflow furnace body 1, so that the heat is discharged from the exhaust pipe 9, and at the same time, the external air enters the reflow furnace body 1 from the air inlet 7. Finally, the turntable 13 can be rotated to drive the cross rotating frame 14 to rotate, and the fan-shaped elastic cloth 15 is stretched by the cross rotating frame 14, so as to adjust the exhaust space at the end of the exhaust pipe 9, and the turntable 13 and the cross rotating frame 14 are fixed by the cooperation between the butterfly screw 17 and the screw hole 16. In addition, when the machine is stopped, the fan-shaped elastic cloth 15 completely blocks the end of the exhaust pipe 9 to prevent dust from entering.

[0042] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention based on the technical solution and improved ideas of the present invention, which should be included in the protection scope of the present invention.

Claims

1. A reflow furnace air outlet device that is easy to install, comprising a reflow furnace body (1), characterized in that: An air outlet (2) is provided on the side of the reflow furnace body (1), a plurality of air inlets (7) are provided on the outer side of the reflow furnace body (1), a U-shaped insert frame (3) is fixedly connected to the outer side of the reflow furnace body (1), a rubber pad (4) is fixedly connected to the inner side of the U-shaped insert frame (3), an insert plate (5) is sleeved in the inner cavity of the U-shaped insert frame (3), two exhaust mechanisms (6) are provided on the insert plate (5), and a cover plate (19) is provided on the top of the reflow furnace body (1).

2. The reflow furnace air outlet device that is easy to install according to claim 1 is characterized in that: The exhaust mechanism (6) comprises an exhaust pipe (9) threadedly mounted on the plug plate (5); an exhaust fan (22) is fixedly mounted at the rear end of the inner cavity of the exhaust pipe (9); a limit ring (10) is fixedly connected to the inner wall of the exhaust pipe (9); a filter screen (11) is sleeved in the inner cavity of the exhaust pipe (9); the side of the filter screen (11) is in contact with the side of the limit ring (10); a cross mounting frame (12) is threadedly mounted on the front end of the inner cavity of the exhaust pipe (9); the middle part of the cross mounting frame (12) is rotatably connected to the inner cavity of the exhaust pipe (9). A turntable (13) is connected, the end of the rotating shaft of the turntable (13) extends to the inner side of the cross mounting frame (12) and is fixedly connected to a cross rotating frame (14), the side surfaces of the cross rotating frame (14) and the side surfaces of the cross mounting frame (12) are respectively fixedly connected to fan-shaped elastic cloths (15), the end surface of the cross mounting frame (12) is provided with a plurality of screw holes (16), a butterfly screw (17) is sleeved on the turntable (13), and the end of the butterfly screw (17) is threadedly installed in the inner cavity of a screw hole (16).

3. The reflow furnace air outlet device that is easy to install according to claim 2, characterized in that: An internal threaded hole (20) is provided on the outer side of the plug plate (5), and a first external threaded groove (21) is provided on the outer side of the exhaust pipe (9), and the first external threaded groove (21) and the internal threaded hole (20) are matched with each other.

4. The reflow furnace air outlet device that is easy to install according to claim 2, characterized in that: A second internal thread groove (23) is provided on the inner wall of one end of the exhaust pipe (9), and a second external thread groove (24) is provided on the outer side of the cross mounting frame (12), wherein the second external thread groove (24) is matched with the second internal thread groove (23).

5. The reflow furnace air outlet device that is easy to install according to claim 1, characterized in that: A plurality of handles (8) are fixedly connected to the top surface of the plug board (5).

6. The reflow furnace air outlet device that is easy to install according to claim 2, characterized in that: A push column (18) is fixedly connected to the end surface of the cross rotating frame (14), and the end of the push column (18) is in contact with the middle of the filter screen (11).

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