A reflow oven for producing electronic circuit boards

Abstract

The utility model discloses a reflow soldering furnace for producing electronic circuit boards, and relates to the technical field of producing electronic circuit boards. The reflow soldering furnace for producing electronic circuit boards comprises a reflow soldering furnace body, a controller body is fixedly mounted on the surface of the reflow soldering furnace body, a fixed protective frame is fixedly mounted on the surface of the reflow soldering furnace body, the fixed protective frame is located outside the controller body, the fixed protective frame is rotatably connected to a rotating shaft inside, a protective cover is fixedly sleeved on the rotating shaft, the protective cover is pushed to drive the rotating shaft to rotate, and then the pawl is continuously meshed with the ratchet on the ratchet, thereby fixing the rotating shaft and the protective cover, making it easy to open or close the protective cover, improving the convenience of opening or closing the protective cover, minimizing the difficulty of closing and opening the protective cover, and facilitating operation by users.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic circuit board production, in particular to a reflow soldering furnace used for the production of electronic circuit boards. Background Art

[0002] The reflow process is to achieve the mechanical and electrical connection between the solder ends or pins of surface mounted components and the pads of the printed circuit board by remelting the paste solder pre-distributed to the pads of the printed circuit board. The reflow oven is the last key process of SMT (surface mount technology). It is a real-time process control. Its process changes are relatively complex and involve many process parameters. Among them, the setting of the temperature curve is the most important and directly determines the quality of reflow soldering.

[0003] After searching, the existing Chinese patent announcement number is: CN 212191623 U, which provides a reflow oven for the production of electronic circuit boards. The patent rotates the protective frame to a position that completely wraps the key frame, and then inserts the insertion rod into the slot to fix the position of the protective frame, thereby preventing dust from entering the keys in the key frame and affecting their normal use.

[0004] Although the above patent can rotate the protective frame to a position that completely wraps the key frame, and then insert the insertion rod into the slot to fix the position of the protective frame, the above-mentioned reflow oven for electronic circuit board production still has the following problems: when the protective frame is closed or opened, it is necessary to press the insertion rod, which is not convenient when opening or closing the protective frame. The user needs to use both hands to open or close the protective frame, which makes closing inconvenient.

[0005] In view of the above problems, a reflow oven for producing electronic circuit boards is proposed. Utility Model Content

[0006] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a reflow soldering furnace for producing electronic circuit boards, which can solve the problems of the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reflow soldering furnace for the production of electronic circuit boards, comprising a reflow soldering furnace body, a controller body is fixedly installed on the surface of the reflow soldering furnace body, a fixed protective frame is fixedly installed on the surface of the reflow soldering furnace body, the fixed protective frame is located outside the controller body, the fixed protective frame is rotatably connected to a rotating shaft inside, a protective cover is fixedly sleeved on the rotating shaft, a fixed frame is fixedly installed inside the fixed protective frame, a sliding limit frame is slidably connected to the inside of the fixed frame, a sliding frame is fixedly installed on one side of the sliding limit frame, the sliding frame is slidably connected inside the fixed frame, the controller body is fixedly installed on one end of the sliding frame extending to the outside of the fixed frame, four elastic springs are fixedly installed inside the fixed frame, and the four elastic springs are fixedly connected to the sliding limit frame at one end close to the sliding limit frame.

[0008] Preferably, both ends of the rotating shaft rotate through the fixed protective frame and extend to both sides of the fixed protective frame, and a torsion spring is movably sleeved on one end of the rotating shaft.

[0009] Preferably, one end of the torsion spring close to the fixed protective frame is fixedly connected to the fixed protective frame, and one end of the torsion spring away from the fixed protective frame is fixedly connected to the surface of the rotating shaft.

[0010] Preferably, a fixed box is rotatably sleeved on the other end of the rotating shaft, and a side of the fixed box close to the fixed protective frame is fixedly connected to the fixed protective frame.

[0011] Preferably, a rotating shaft is rotatably connected inside the fixed box, and a handle is fixedly mounted on one end of the rotating shaft extending to the outside of the fixed box.

[0012] Preferably, a ratchet is fixedly sleeved on the rotating shaft.

[0013] Preferably, a ratchet is fixedly sleeved on one end of the rotating shaft located inside the fixed box, and the rotating shaft is meshed on the handle.

[0014] Preferably, a return spring is movably sleeved on the rotating shaft, one end of the return spring close to the pawl is fixedly connected to the pawl, and one end of the return spring away from the pawl is fixedly connected to the inside of the fixed box.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The reflow soldering furnace used for the production of electronic circuit boards pushes the protective cover, so that the protective cover drives the rotating shaft to rotate, and then the pawl is continuously engaged with the ratchet on the ratchet, thereby achieving the fixation of the rotating shaft and the protective cover, making it easy to open or close the protective cover, improving the convenience of opening or closing the protective cover, and minimizing the difficulty of closing and opening the protective cover, making it easier for users to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the structure of a reflow soldering furnace for producing electronic circuit boards according to the utility model;

[0019] Figure 2 This is a schematic diagram of the interior of the fixed protection frame of the utility model;

[0020] Figure 3 This is a schematic diagram of the interior of the fixing frame of the utility model;

[0021] Figure 4 It is the internal schematic diagram of the fixed box of the utility model.

[0022] Figure numerals: 1. Reflow oven body; 2. Fixed protection frame; 3. Protection cover; 4. Fixed box; 5. Rotating shaft; 6. Handle; 7. Rotating shaft; 8. Fixed frame; 9. Sliding frame; 10. Torsion spring; 11. Controller body; 12. Elastic spring; 13. Sliding limiting frame; 14. Ratchet; 15. Reset spring; 16. Ratchet. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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.

[0024] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0025] See also Figure 1-4The utility model provides a technical solution: a reflow soldering furnace for the production of electronic circuit boards, comprising a reflow soldering furnace body 1, a controller body 11 is fixedly installed on the surface of the reflow soldering furnace body 1, a fixed protective frame 2 is fixedly installed on the surface of the reflow soldering furnace body 1, the fixed protective frame 2 is located outside the controller body 11, the fixed protective frame 2 is rotatably connected with a rotating shaft 5 inside, a protective cover plate 3 is fixedly sleeved on the rotating shaft 5, a fixed frame 8 is fixedly installed inside the fixed protective frame 2, a sliding limit frame 13 is slidably connected inside the fixed frame 8, a sliding frame 9 is fixedly installed on one side of the sliding limit frame 13, the sliding frame 9 is slidably connected inside the fixed frame 8, the controller body 11 is fixedly installed on one end of the sliding frame 9 extending to the outside of the fixed frame 8, four elastic springs 12 are fixedly installed inside the fixed frame 8, and one end of the four elastic springs 12 close to the sliding limit frame 13 is fixedly connected to the sliding limit frame 13.

[0026] By providing the protective cover plate 3 and the fixed protective frame 2 , the controller body 11 can be easily protected, thereby preventing the buttons on the controller body 11 from entering dust, thereby improving the protective effect of the controller body 11 .

[0027] When the protective cover 3 is closed, the protective cover 3 will squeeze the controller body 11, so that the sliding frame 9 will slide toward the inside of the fixed frame 8, the sliding limiting frame 13 will slide inside the fixed frame 8, and the four elastic springs 12 will be squeezed, so that the controller body 11 will contact one side of the protective cover 3, so as to achieve the sealing of the fitting between the protective cover 3 and the fixed protective frame 2, thereby preventing external dust from entering the interior of the fixed protective frame 2 through the gap, and at the same time improving the fit between the protective cover 3 and the fixed frame 8, thereby improving the sealing.

[0028] Both ends of the rotating shaft 5 rotate through the fixed protective frame 2 and extend to both sides of the fixed protective frame 2. A torsion spring 10 is movably sleeved on one end of the rotating shaft 5. The end of the torsion spring 10 close to the fixed protective frame 2 is fixedly connected to the fixed protective frame 2, and the end of the torsion spring 10 away from the fixed protective frame 2 is fixedly connected to the surface of the rotating shaft 5. A fixed box 4 is rotatably sleeved on the other end of the rotating shaft 5. The side of the fixed box 4 close to the fixed protective frame 2 is fixedly connected to the fixed protective frame 2. The interior of the fixed box 4 is rotatably connected with a rotating shaft 7. A handle 6 is fixedly installed on the end of the rotating shaft 7 extending to the outside of the fixed box 4. A pawl 14 is fixedly sleeved on the rotating shaft 7. A ratchet 16 is fixedly sleeved on the end of the rotating shaft 5 located inside the fixed box 4. The rotating shaft 7 is meshed on the handle 6. A return spring 15 is movably sleeved on the rotating shaft 7. The end of the return spring 15 close to the pawl 14 is fixedly connected to the pawl 14, and the end of the return spring 15 away from the pawl 14 is fixedly connected to the interior of the fixed box 4.

[0029] Push the handle 6, which in turn drives the rotating shaft 7 to rotate inside the fixed box 4, thereby causing the pawl 14 to rotate, thereby causing the reset spring 15 to deform, thereby causing the pawl 14 to no longer mesh with the ratchet 16, and thereby no longer fix the rotating shaft 5, so that the rotating shaft 5 is reset by the torsion of the torsion spring 10, thereby automatically opening the protective cover 3. When closing, push the protective cover 3, so that the protective cover 3 drives the rotating shaft 5 to rotate, and then the pawl 14 is continuously meshed with the ratchet teeth on the ratchet 16, thereby fixing the rotating shaft 5 and the protective cover 3, making it easier to open or close the protective cover 3, improving the convenience of opening or closing the protective cover 3, minimizing the difficulty of closing and opening the protective cover 3, and facilitating the user's operation.

[0030] Working principle:

[0031] Push the handle 6, which in turn drives the rotating shaft 7 to rotate inside the fixed box 4, thereby causing the pawl 14 to rotate, thereby causing the reset spring 15 to deform, thereby causing the pawl 14 to no longer mesh with the ratchet 16, thereby no longer fixing the rotating shaft 5, and causing the rotating shaft 5 to be reset by the torsion of the torsion spring 10, thereby causing the protective cover 3 to open automatically. When closing, push the protective cover 3, so that the protective cover 3 drives the rotating shaft 5 to rotate, and thereby causing the pawl 14 to continuously mesh with the ratchet teeth on the ratchet 16, thereby achieving fixation of the rotating shaft 5 and the protective cover 3, thereby facilitating the opening or closing of the protective cover 3.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A reflow oven for producing electronic circuit boards, comprising a reflow oven body (1), characterized in that: A controller body (11) is fixedly mounted on the surface of the reflow soldering furnace body (1); a fixed protective frame (2) is fixedly mounted on the surface of the reflow soldering furnace body (1); the fixed protective frame (2) is located outside the controller body (11); a rotating shaft (5) is rotatably connected inside the fixed protective frame (2); a protective cover plate (3) is fixedly sleeved on the rotating shaft (5); a fixed frame (8) is fixedly mounted inside the fixed protective frame (2); a sliding limit frame (13) is slidably connected inside the fixed frame (8); a sliding frame (9) is fixedly mounted on one side of the sliding limit frame (13); the sliding frame (9) is slidably connected inside the fixed frame (8); the controller body (11) is fixedly mounted on one end of the sliding frame (9) extending to the outside of the fixed frame (8); four elastic springs (12) are fixedly mounted inside the fixed frame (8); one end of the four elastic springs (12) close to the sliding limit frame (13) is fixedly connected to the sliding limit frame (13).

2. A reflow oven for producing electronic circuit boards according to claim 1, characterized in that: Both ends of the rotating shaft (5) rotate through the fixed protection frame (2) and extend to both sides of the fixed protection frame (2); a torsion spring (10) is movably sleeved on one end of the rotating shaft (5).

3. A reflow oven for producing electronic circuit boards according to claim 2, characterized in that: One end of the torsion spring (10) close to the fixed protection frame (2) is fixedly connected to the fixed protection frame (2), and one end of the torsion spring (10) away from the fixed protection frame (2) is fixedly connected to the surface of the rotating shaft (5).

4. A reflow oven for producing electronic circuit boards according to claim 3, characterized in that: A fixed box (4) is rotatably sleeved on the other end of the rotating shaft (5), and the fixed box (4) is fixedly connected to the fixed protective frame (2) on one side close to the fixed protective frame (2).

5. A reflow oven for producing electronic circuit boards according to claim 4, characterized in that: The interior of the fixed box (4) is rotatably connected to a rotating shaft (7), and a handle (6) is fixedly mounted on one end of the rotating shaft (7) extending to the outside of the fixed box (4).

6. A reflow oven for producing electronic circuit boards according to claim 5, characterized in that: A ratchet pawl (14) is fixedly sleeved on the rotating shaft (7).

7. A reflow oven for producing electronic circuit boards according to claim 6, characterized in that: A ratchet (16) is fixedly sleeved on one end of the rotating shaft (5) located inside the fixed box (4), and the rotating shaft (7) is meshed with the handle (6).

8. The reflow oven for producing electronic circuit boards according to claim 7, characterized in that: A return spring (15) is movably sleeved on the rotating shaft (7), one end of the return spring (15) close to the pawl (14) is fixedly connected to the pawl (14), and one end of the return spring (15) away from the pawl (14) is fixedly connected to the inside of the fixed box (4).

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