Drawer type reflow soldering

Abstract

The utility model relates to the field of reflow soldering, and discloses a drawer type reflow soldering machine which comprises a soldering machine body, a working bin is arranged in the soldering machine body, a bin plate frame is arranged in front of the working bin, sliding rails are arranged on the left inner wall and the right inner wall of the working bin respectively, sliding rods are connected to the corresponding sliding rails in a sliding mode, and supporting plates are connected to the two sliding rods on the same side in a sliding mode. A welding groove is formed between the lower portions of the two supporting plates, a heat insulation bin plate is arranged on the front portion of the welding groove, an infrared radiation heater is arranged on the upper portion of the interior of the working bin, a tin smoke frame is arranged in the working bin, and a tin smoke processing assembly is arranged behind the welding machine body and connected with the tin smoke frame. The tin smoke frame comprises a connecting pipe arranged behind the working bin, a transverse frame is arranged in front of the connecting pipe, side frames are arranged on the left side and the right side of the transverse frame respectively, the transverse frame and the side frames are integrally formed, a flue is arranged in the transverse frame and the side frames, the reflow soldering machine can be conveniently used, and tin paste smoke can be treated.

Description

Technical Field

[0001] The utility model relates to the technical field of reflow soldering, in particular to a drawer type reflow soldering machine. Background Art

[0002] A reflow soldering machine is also called a reflow oven or a reflow furnace. By providing a heating environment, workers place components at corresponding positions on a PCB board. Through the melting of solder paste, surface-mounted components and PCB pads are reliably bonded together by the solder paste, thereby performing reflow soldering on the PCB board.

[0003] Traditionally, a reflow soldering machine consists of a frame, a high-temperature zone, a cooling zone, and a transmission mechanism. The reflow soldering machine is relatively large in volume. When the reflow soldering machine is used outdoors due to usage requirements, it is not convenient to carry. Moreover, during the melting process of the solder paste, fume containing fluorine and tin will be generated. If this fume is not treated and directly discharged into the air, the air quality of the working environment will be poor. Therefore, we propose a drawer type reflow soldering machine. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a drawer type reflow soldering machine, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solutions: The utility model discloses a drawer type reflow soldering machine, which includes a welding machine main body. A working chamber is arranged in the welding machine main body. A chamber plate frame is arranged in front of the working chamber. Slide rails are respectively arranged on the left and right inner walls of the working chamber. Corresponding slide rods are slidably connected to the slide rails. A support plate is slidably connected to two slide rods on the same side. A welding groove is arranged between the lower parts of the two support plates. A heat insulation chamber plate is arranged in front of the welding groove. The chamber plate frame is adapted to the heat insulation chamber plate. An infrared radiation heater is arranged above the interior of the working chamber. A tin fume rack is arranged in the working chamber. A tin fume treatment assembly is arranged behind the welding machine main body. The tin fume treatment assembly is connected to the tin fume rack.

[0006] As a preferred solution, the tin fume rack includes a connecting pipe arranged behind the working chamber. A cross frame is arranged in front of the connecting pipe. Side frames are respectively arranged on the left and right of the cross frame. The cross frame and the side frames are integrally formed. Flue ducts are arranged inside the cross frame and the side frames. A plurality of smoke holes are arranged on the cross frame and the side frames. The cross frame is located above the rear side of the welding groove. The side frames are located above the side parts of the welding groove.

[0007] As a preferred solution, the tin fume treatment assembly includes a support plate disposed behind the main body of the welding machine. A treatment tank and a pump are arranged on the support plate. A guiding pipe is provided between the upper part of the treatment tank and the outer end of the connecting pipe. An electrostatic adsorption plate is detachably arranged above the interior of the treatment tank. A plurality of filter holes are evenly formed in the electrostatic adsorption plate. An active block is arranged in the middle of the inner side of the treatment tank. A plurality of filter channels are evenly formed in the active block. A pipe fitting is provided between the lower part of the treatment tank and the inlet end of the pump.

[0008] As a preferred solution, a ceramic welding plate is detachably arranged in the welding groove.

[0009] As a preferred solution, radiation plates are respectively arranged on the opposite surfaces of the two support plates.

[0010] As a preferred solution, the length of the main body of the welding machine is 40 cm, the width is 35 cm, and the height is 30 cm. Handles are respectively arranged on the left and right sides of the main body of the welding machine.

[0011] Compared with the prior art, the present utility model has the following beneficial effects:

[0012] In the present utility model, since the length of the main body of the welding machine is 40 cm, the width is 35 cm, the height is 30 cm, and handles are respectively arranged on the left and right sides of the main body of the welding machine, the volume of the main body of the welding machine is reduced compared with that of the traditional reflow soldering machine. The user can lift the main body of the welding machine by lifting the handles, which is convenient for the user to carry and use.

[0013] Through the structural arrangement of the tin fume treatment assembly and the use of the tin fume rack, the fumes generated by the melting of the solder paste are treated. The PCB board to be welded is placed in the ceramic welding plate of the welding groove, and then the welding groove is pushed into the working chamber. The tin fume rack is in a U shape, and the crossbar has a curvature. The crossbar is located above the rear side of the welding groove, and the side bars are located above the side parts of the welding groove. Through the operation of the crossbar, negative pressure is generated in the tin fume rack, and the welding fumes are effectively sucked through the smoke holes, and the smoke is introduced into the treatment tank. The particulate matters in the smoke are adsorbed by the electrostatic adsorption plate, and then the preliminarily purified smoke is introduced into the active block through the filter holes of the electrostatic adsorption plate. The active block is an activated carbon block, and the smoke is treated through the filter channels, and then the gas is discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structure diagram of the present utility model;

[0015] Figure 2 is Figure 1 the enlarged view of part A in

[0016] Figure 3This is a partial structural schematic diagram of the present utility model;

[0017] Figure 4 This is a partial structural schematic diagram of the tin fume rack;

[0018] Figure 5 This is a cross-sectional view of the treatment tank 15.

[0019] In the figure: 1, the main body of the welding machine; 2, the working chamber; 3, the chamber plate frame; 4, the slide rail; 5, the slide bar; 6, the support plate; 7, the welding groove; 8, the heat insulation chamber plate; 9, the infrared radiation heater; 10, the connecting pipe; 11, the cross frame; 12, the side frame; 13, the smoke hole; 14, the support plate; 15, the treatment tank; 16, the pump; 17, the electrostatic adsorption plate; 18, the filter hole; 19, the active block; 20, the ceramic welding plate; 21, the radiation plate; 22, the handle. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-5 A drawer-type reflow soldering machine in this embodiment includes the main body 1 of the welding machine. The surface of the main body 1 of the welding machine is coated with an anti-rust coating. A control panel is arranged on the main body 1 of the welding machine, and the control panel is electrically connected to the electrical components in the device, facilitating the user to control the main body 1 of the welding machine to perform melting soldering treatment on the PCB board. A working chamber 2 is arranged in the main body 1 of the welding machine. A chamber plate frame 3 is arranged in front of the working chamber 2. Slide rails 4 are respectively arranged on the left and right inner walls of the working chamber 2. A slide bar 5 is slidably connected to the corresponding slide rail 4. A support plate 6 is slidably connected to the two slide bars 5 on the same side. A welding groove 7 is arranged between the lower parts of the two support plates 6. A heat insulation chamber plate 8 is arranged in front of the welding groove 7. Nitrile rubber is arranged on the outer side of the heat insulation chamber plate 8. The chamber plate frame 3 is adapted to the heat insulation chamber plate 8, improving the sealing performance between the chamber plate frame 3 and the heat insulation chamber plate 8. An infrared radiation heater 9 is arranged above the interior of the working chamber 2. The infrared radiation heater 9 is used to perform welding treatment on the PCB board placed in the welding groove 7 and can control the temperature to preheat and heat the working chamber 2. A tin fume rack is arranged in the working chamber 2. The tin fume rack is made of stainless steel. A tin fume treatment assembly is arranged behind the main body 1 of the welding machine. The tin fume treatment assembly is connected to the tin fume rack to treat the fumes generated by the melting of the solder paste.

[0022] Such as Figure 3 、 4As shown in the figure, the tin fume rack includes a connecting pipe 10 arranged behind the working bin 2. In front of the connecting pipe 10, there is a cross rack 11. On the left and right of the cross rack 11, there are side racks 12 respectively. The cross rack 11 and the side racks 12 are integrally formed. Inside the cross rack 11 and the side racks 12, there is a flue. On the cross rack 11 and the side racks 12, there are multiple smoke holes 13. The cross rack 11 is located above the rear side of the soldering groove 7, and the side racks 12 are located above the side parts of the soldering groove 7, effectively exhausting the fumes generated by the melting of the solder paste.

[0023] As Figure 3 , 5 shown in the figure, the tin fume treatment assembly includes a support plate 14 arranged behind the welding machine main body 1. On the support plate 14, there are a treatment tank 15 and a cross rack 11. Between the upper part of the treatment tank 15 and the outer end of the connecting pipe 10, there is a guiding pipe. Above the inside of the treatment tank 15, there is a detachable electrostatic adsorption plate 17. On the electrostatic adsorption plate 17, there are multiple filter holes 18 evenly opened. In the middle part of the inner side of the treatment tank 15, there is an active block 19. In the active block 19, there are multiple filter channels evenly opened. Between the lower part of the treatment tank 15 and the inlet end of the cross rack 11, there is a pipe fitting, which treats the fumes generated by the melting of the solder paste.

[0024] As Figure 1 , 2 shown in the figure, a ceramic soldering plate 20 is detachably arranged in the soldering groove 7. The PCB board is placed on the ceramic soldering plate 20, and the components on the PCB board are welded, so as to facilitate the later treatment of the solder stains on the ceramic soldering plate 20.

[0025] As Figure 1 , 2 shown in the figure, radiation plates 21 are respectively arranged on the opposite surfaces of the two support plates 6, so as to improve the heating effect of the infrared radiation heater 9.

[0026] As Figure 1 shown in the figure, the length of the welding machine main body 1 is 40 cm, the width of the welding machine main body 1 is 35 cm, and the height of the welding machine main body 1 is 30 cm. On the left and right sides of the welding machine main body 1, there are handles 22 respectively, so that the volume of the welding machine main body 1 is smaller than that of the traditional reflow soldering machine, which is convenient for users to carry and use.

[0027] In the specific implementation of this embodiment, the length of the welding machine main body 1 is 40 cm, the width of the welding machine main body 1 is 35 cm, and the height of the welding machine main body 1 is 30 cm. Handle 22 is respectively arranged on the left and right sides of the welding machine main body 1, so that the volume of the welding machine main body 1 is reduced compared with the traditional reflow soldering machine. The user lifts the handle 22 to lift the welding machine main body 1, which is convenient for the user to carry and use. Through the structural setting of the tin fume treatment component and the use of the tin fume rack, the fumes generated by the melting of the solder paste are treated. Place the PCB board to be welded in the ceramic solder plate 20 of the solder bath 7, and then push the solder bath 7 into the working bin 2. The tin fume rack is in a U shape, and the cross frame 11 has a curvature. The cross frame 11 is located above the rear side of the solder bath 7, and the side frame 12 is located above the side of the solder bath 7. Through the operation of the pump 16, negative pressure is generated in the tin fume rack, and the welding fumes are effectively sucked through the smoke holes 13, and the smoke is introduced into the treatment tank 15. The particulate matter in the smoke is adsorbed by the electrostatic adsorption plate 17, and then the preliminarily purified smoke is introduced into the active block 19 through the filter holes 18 of the electrostatic adsorption plate 17. The active block 19 is an activated carbon block, and the smoke is treated through the filter channel, and then the gas is discharged.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drawer-type reflow soldering machine, comprising a soldering machine body (1), characterized in that: The welding machine body (1) is provided with a working chamber (2), a chamber plate frame (3) is provided in front of the working chamber (2), slide rails (4) are provided on the left and right inner walls of the working chamber (2), and corresponding slide rails (4) are slidably connected with slide rods (5), and two slide rods (5) on the same side are slidably connected with support plates (6), a welding groove (7) is provided between the lower parts of the two support plates (6), and a heat insulation chamber plate (8) is provided in front of the welding groove (7), and the chamber plate frame (3) is adapted to the heat insulation chamber plate (8), an infrared radiation heater (9) is provided on the upper part of the interior of the working chamber (2), and a tin smoke rack is provided in the working chamber (2), and a tin smoke treatment component is provided at the rear of the welding machine body (1), and the tin smoke treatment component is connected to the tin smoke rack.

2. A drawer-type reflow soldering according to claim 1, characterized in that: The tin smoke rack comprises a connecting pipe (10) arranged at the rear of a working chamber (2), a cross frame (11) is arranged in front of the connecting pipe (10), side frames (12) are arranged on the left and right of the cross frame (11), the cross frame (11) and the side frames (12) are integrally formed, flues are arranged inside the cross frame (11) and the side frames (12), a plurality of smoke holes (13) are arranged on the cross frame (11) and the side frames (12), the cross frame (11) is located above the rear side of the welding groove (7), and the side frames (12) are located above the side of the welding groove (7).

3. A drawer-type reflow soldering according to claim 2, characterized in that: The tin smoke treatment component comprises a support plate (14) arranged at the rear of the welding machine body (1), a treatment tank (15) and a pump (16) are arranged on the support plate (14), a guide pipe is arranged between the upper part of the treatment tank (15) and the outer end of the connecting pipe (10), an electrostatic adsorption plate (17) is detachably arranged on the upper part of the interior of the treatment tank (15), a plurality of filter holes (18) are evenly arranged on the electrostatic adsorption plate (17), an active block (19) is arranged in the middle part of the inner side of the treatment tank (15), a plurality of filter channels are evenly arranged in the active block (19), and a pipe fitting is arranged between the lower part of the treatment tank (15) and the inlet end of the pump (16).

4. The drawer-type reflow soldering according to claim 1, characterized in that: A ceramic welding plate (20) is detachably arranged in the welding groove (7).

5. The drawer-type reflow soldering according to claim 1, characterized in that: Radiation plates (21) are respectively arranged on the opposite surfaces of the two support plates (6).

6. The drawer-type reflow soldering according to claim 1, characterized in that: The length of the welding machine body (1) is 40 cm, the width of the welding machine body (1) is 35 cm, the height of the welding machine body (1) is 30 cm, and handles (22) are respectively provided on the left and right sides of the welding machine body (1).

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