Protective cover for reflow soldering process

Abstract

The utility model discloses a protective cover for a reflow soldering process, which relates to the technical field of soldering protection, and adopts the technical scheme that the protective cover comprises a cover body, transparent glass is fixedly embedded in the front side of the cover body, and a breathable net is fixedly embedded in the rear side of the cover body; the shell is fixedly connected to the inner wall of the top of the cover body, a plurality of through holes are formed in the bottom of the shell, an adsorption box is fixedly connected to the top of the cover body, two net plates are fixedly connected to the interior of the adsorption box, and activated carbon bags are arranged on the inner sides of the two net plates; one end of the pipeline I is fixedly embedded in one side of the adsorption box, and the other end of the pipeline I is fixedly embedded in the tops of the cover body and the shell; the air pump is controlled to work, enough suction force can be generated, then irritant smoke generated by welding can be absorbed under the action of the through hole, the shell, the first pipeline, the second pipeline and the third pipeline, the smoke passes through the adsorption box during absorption, in this way, the irritant smoke can be adsorbed and filtered through the activated carbon bag in the adsorption box, and the smoke can be absorbed and filtered through the adsorption box. Therefore, peculiar smell and smoke dust in the flue gas are adsorbed and treated.

Description

Technical Field

[0001] The utility model relates to the technical field of welding protection, in particular to a protective cover for a reflow soldering process. Background Art

[0002] The reflow process is used in the production of printed circuit boards. Reflow is to heat the air or nitrogen to a high enough temperature and blow it to the circuit board with the components attached, so that the solder on both sides of the components melts and then bonds with the main board. A protective cover is also required during reflow.

[0003] The existing protective cover is found to have a single function when in use, and does not have the function of absorbing and treating the fume generated by welding. In this way, the irritating fume generated by welding will float in the air, which will not only affect the air quality, but also the workers will inhale the irritating smell into the lungs, which will affect their health. Therefore, it is necessary to improve it;

[0004] For this reason, it is necessary to invent a protective cover for the reflow soldering process. Summary of the invention

[0005] Therefore, the utility model provides a protective cover for a reflow soldering process to solve the problems in the background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a protective cover for a reflow soldering process, comprising:

[0007] A cover body, wherein a transparent glass is fixedly embedded on the front side of the cover body, and a breathable net is fixedly embedded on the rear side of the cover body;

[0008] A shell, which is fixedly connected to the inner wall of the top of the cover body, a plurality of through holes are opened at the bottom of the shell, an adsorption box is fixedly connected to the top of the cover body, two mesh plates are fixedly connected inside the adsorption box, and activated carbon bags are arranged inside the two mesh plates;

[0009] Pipe 1, one end of which is fixedly embedded in one side of the adsorption box and the other end of which is fixedly embedded in the cover body and the top of the shell;

[0010] The air pump is fixedly connected to the top of the cover body, the air inlet of the air pump is fixedly connected to the pipeline 2, one end of the pipeline 2 is fixedly embedded in the other side of the adsorption box, and the air outlet of the air pump is fixedly connected to the pipeline 3.

[0011] Preferably, a box door is provided on the top of the adsorption box, the box door is connected to the adsorption box by a hinge, and the box door is in contact with the mesh plate and the activated carbon bag.

[0012] Preferably, a bottom plate is slidably provided on both sides of the cover body, a box body is fixedly connected to both sides of the cover body, the bottoms of the two box bodies are set to be open, a piston is slidably provided inside the two box bodies, the bottom ends of the two pistons are fixedly connected to push rods, and the bottom ends of the two push rods are respectively fixedly connected to the two bottom plates.

[0013] Preferably, two box bodies 2 are fixedly connected to the top of the cover body, the inner sides of the two box bodies 2 are arranged to be open, pistons 2 are slidably provided inside the two box bodies 2, and moving rods are fixedly connected to the inner sides of the two pistons 2, and pipes 4 are fixedly embedded on the outer sides of the two box bodies 2, and the outer ends of the two pipes 4 are respectively fixedly embedded in the tops of the two box bodies 1.

[0014] Preferably, the two tops of the two boxes are fixedly connected to support blocks, one side of one of the support blocks is fixedly connected to a motor, the motor output shaft is fixedly connected to a bidirectional screw, the bidirectional screw passes through the two support blocks, two threaded blocks are provided on the outside of the bidirectional screw, the threaded blocks are connected to the bidirectional screw by threads, and the two threaded blocks are fixedly connected to the inner ends of the two moving rods respectively.

[0015] Preferably, a positioning rod is fixedly connected to the inner sides of the two boxes, and the positioning rod passes through the two threaded blocks and is slidably connected thereto.

[0016] Preferably, two stabilizing blocks are fixedly connected to both sides of the cover body, two stabilizing rods are fixedly connected to the tops of the two base plates, and the four stabilizing rods respectively penetrate the four stabilizing blocks and are slidably connected thereto.

[0017] Preferably, two mounting holes are provided inside the two base plates.

[0018] Preferably, the bidirectional screw is connected to the support block via a bearing.

[0019] The beneficial effects of the utility model are:

[0020] The utility model designs an air pump and controls the operation of the air pump to generate sufficient suction force, and then the irritating fume generated by welding can be absorbed under the action of the through hole, the shell, the first pipeline, the second pipeline and the third pipeline, and the fume will pass through the adsorption box during absorption, so that the activated carbon bag inside the adsorption box can adsorb and filter the irritating fume, thereby adsorbing the odor and smoke in the fume, and finally the purified gas is discharged into the air, so that the device has the function of absorbing and treating the fume generated by welding, thereby preventing the irritating fume generated by welding from floating in the air, not only will it not affect the air quality, but the workers will not inhale the irritating smell into the lungs to affect their health. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0022] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment in size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0023] Figure 1 The overall structural diagram provided by the utility model;

[0024] Figure 2 A front cross-sectional view provided for the utility model;

[0025] Figure 3 A rear perspective view provided by the utility model;

[0026] Figure 4 The utility model provides Figure 3 Sectional view;

[0027] Figure 5 The utility model provides Figure 4 A in the enlarged view;

[0028] Figure 6 A schematic diagram of the use status provided by the utility model;

[0029] In the figure: 1 cover body, 2 transparent glass, 3 breathable net, 4 shell, 5 adsorption box, 6 mesh plate, 7 activated carbon bag, 8 pipeline one, 9 air pump, 10 pipeline two, 11 pipeline three, 12 box door, 13 bottom plate, 14 box one, 15 piston one, 16 push rod, 17 box two, 18 piston two, 19 moving rod, 20 pipeline four, 21 support block, 22 motor, 23 bidirectional screw, 24 threaded block, 25 positioning rod, 26 stabilizing block, 27 stabilizing rod, 28 mounting hole. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0031] Refer to the attached Figure 1 -Attached Figure 6 The utility model provides a protective cover for the reflow soldering process, comprising:

[0032] A cover body 1, a transparent glass 2 is fixedly embedded on the front side of the cover body 1, and a breathable net 3 is fixedly embedded on the back side of the cover body 1;

[0033] The shell 4 is fixedly connected to the inner wall of the top of the cover body 1. The bottom of the shell 4 is provided with a plurality of through holes. The top of the cover body 1 is fixedly connected to an adsorption box 5. Two mesh plates 6 are fixedly connected inside the adsorption box 5. Activated carbon bags 7 are provided inside the two mesh plates 6.

[0034] A pipe 8, one end of which is fixedly embedded in one side of the adsorption box 5 and the other end of which is fixedly embedded in the cover body 1 and the top of the shell 4;

[0035] The air pump 9 is fixedly connected to the top of the cover body 1, the air inlet of the air pump 9 is fixedly connected to the pipeline 2 10, one end of the pipeline 2 10 is fixedly embedded in the other side of the adsorption box 5, and the air outlet of the air pump 9 is fixedly connected to the pipeline 3 11;

[0036] In this embodiment, the transparent glass 2 facilitates observation of the progress of welding, the air permeable mesh 3 allows the outside air to circulate with the air inside the cover 1, and the mesh plate 6 prevents the activated carbon bag 7 from tipping over in the adsorption box 5;

[0037] In order to facilitate the replacement of the activated carbon bag 7, the device is implemented by the following technical solution: a box door 12 is provided on the top of the adsorption box 5, the box door 12 is connected to the adsorption box 5 by a hinge, the box door 12 is in contact with the mesh plate 6 and the activated carbon bag 7, and the box door 12 can facilitate the replacement of the activated carbon bag 7;

[0038] Among them, in order to achieve the purpose of removing the shielding of the workpiece by the cover body 1, the device adopts the following technical solutions: bottom plates 13 are slidably provided on both sides of the cover body 1, and boxes 14 are fixedly connected on both sides of the cover body 1. The bottoms of the two boxes 14 are set to be open, and pistons 15 are slidably provided inside the two boxes 14. The bottom ends of the two pistons 15 are fixedly connected to push rods 16, and the bottom ends of the two push rods 16 are respectively fixedly connected to the two bottom plates 13; two boxes 2 17 are fixedly connected to the top of the cover body 1, and the inner sides of the two boxes 2 17 are set to be open; pistons 2 18 are slidably provided inside the two boxes 2 17, and the inner sides of the two pistons 2 18 are fixedly connected to moving rods 19; pipes 4 20 are fixedly embedded on the outer sides of the two boxes 2 17, and the outer ends of the two pipes 4 20 are respectively fixedly embedded in the tops of the two boxes 14, and the tops of the two boxes 2 17 are fixedly connected to support blocks 21, one of which A motor 22 is fixedly connected to one side of the support block 21, and a bidirectional screw 23 is fixedly connected to the output shaft of the motor 22. The bidirectional screw 23 passes through the two support blocks 21. Two threaded blocks 24 are sleeved on the outside of the bidirectional screw 23. The threaded blocks 24 are threadedly connected to the bidirectional screw 23. The two threaded blocks 24 are respectively fixedly connected to the inner ends of the two moving rods 19. The motor 22 drives the bidirectional screw 23 to rotate. Since the bidirectional screw 23 has two threads with opposite spiral directions, the rotation of the bidirectional screw 23 can make the two threaded blocks 24 move outward, thereby pushing the two moving rods 19 and the two pistons 18 to move outward. Then, under the action of the two pipes 4 20, the air in the two box bodies 2 17 can enter the two box bodies 1 14, so that the cover body 1, the two box bodies 14 and the components on the cover body 1 can move upward, so that the cover body 1 can remove the shielding of the workpiece;

[0039] In order to achieve the purpose of stable movement of the threaded block 24, the device adopts the following technical solution: a positioning rod 25 is fixedly connected to the inner side of the two boxes 17, and the positioning rod 25 passes through the two threaded blocks 24 and is slidably connected thereto, and the positioning rod 25 can make the threaded block 24 move stably;

[0040] In order to achieve the purpose of stable movement of the cover body 1, the present device adopts the following technical solutions: two stabilizing blocks 26 are fixedly connected to both sides of the cover body 1, and two stabilizing rods 27 are fixedly connected to the tops of the two bottom plates 13. The four stabilizing rods 27 penetrate the four stabilizing blocks 26 respectively and are slidably connected thereto. The stabilizing blocks 26 and the stabilizing rods 27 can enable the cover body 1 to move stably.

[0041] In order to facilitate the installation of the device, the device is implemented by the following technical solution: two mounting holes 28 are provided inside the two bottom plates 13, and the mounting holes 28 can facilitate the installation of the device;

[0042] In order to achieve the purpose of reducing wear, the device is implemented by the following technical solution: the bidirectional screw 23 is connected to the support block 21 through a bearing, and the bearing connection can reduce wear.

[0043] The use process of the utility model is as follows: when using the utility model, the device is placed on the reflow soldering machine, and then the device is installed on the reflow soldering machine using bolts under the action of the mounting hole 28, such as Figure 6 As shown, when the reflow soldering machine performs welding, smoke will be generated. At this time, the air pump 9 is controlled to work, and the air pump 9 can generate sufficient suction force. Then, under the action of the through hole, the shell 4, the pipe 1 8, the pipe 2 10 and the pipe 3 11, the irritating smoke generated by welding can be absorbed, and the smoke will pass through the adsorption box 5 during absorption, so that the activated carbon bag 7 inside the adsorption box 5 can adsorb and filter the irritating smoke, thereby adsorbing the odor and smoke in the smoke, and finally the purified gas is discharged into the air through the pipe 3 11. In this way, the device has the function of absorbing and treating the smoke generated by welding, thereby preventing the irritating smoke generated by welding from floating in the air, which will not only not affect the air quality, but also prevent the workers from inhaling the irritating smell into the lungs to affect their health.

[0044] When the welding work is finished, the motor 22 is controlled to work, and the motor 22 drives the bidirectional screw 23 to rotate. Since the bidirectional screw 23 has two threads with opposite spiral directions, the rotation of the bidirectional screw 23 can make the two threaded blocks 24 move outward, thereby pushing the two moving rods 19 and the two pistons 18 to move outward, and then under the action of the two pipes 4 20, the air in the two box bodies 2 17 can enter the two box bodies 1 14, so that the cover body 1, the two box bodies 14 and the components on the cover body 1 can be moved upward, so that the cover body 1 can remove the covering of the workpiece, so that the welded workpiece can be removed and a new workpiece can be placed, and then the motor 22 is controlled to reverse, so that the air in the two box bodies 14 can be drawn back into the box body 2 17, so that the cover body 1, the two box bodies 14 and the components on the cover body 1 can move downward, so that the cover body 1 can cover the workpiece, so as to continue the welding work.

[0045] The above are only preferred embodiments of the present invention. Any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the above technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A protective cover for a reflow soldering process, characterized in that: include: A cover body (1), wherein a transparent glass (2) is fixedly embedded on the front side of the cover body (1), and a breathable net (3) is fixedly embedded on the rear side of the cover body (1); A shell (4) is fixedly connected to the inner wall of the top of the cover body (1); a plurality of through holes are provided at the bottom of the shell (4); an adsorption box (5) is fixedly connected to the top of the cover body (1); two mesh plates (6) are fixedly connected inside the adsorption box (5); activated carbon bags (7) are provided inside the two mesh plates (6); Pipe 1 (8), one end of which is fixedly embedded in one side of the adsorption box (5) and the other end of which is fixedly embedded in the cover body (1) and the top of the shell (4); An air pump (9) is fixedly connected to the top of the cover body (1); an air inlet of the air pump (9) is fixedly connected to a second pipe (10); one end of the second pipe (10) is fixedly embedded in the other side of the adsorption box (5); and an air outlet of the air pump (9) is fixedly connected to a third pipe (11).

2. The protective cover for the reflow soldering process according to claim 1, characterized in that: The top of the adsorption box (5) is provided with a box door (12), the box door (12) is connected to the adsorption box (5) via a hinge, and the box door (12) is in contact with the mesh plate (6) and the activated carbon bag (7).

3. The protective cover for the reflow soldering process according to claim 1, characterized in that: Bottom plates (13) are slidably provided on both sides of the cover body (1), and box bodies (14) are fixedly connected to both sides of the cover body (1). The bottoms of the two box bodies (14) are both arranged to be open, and pistons (15) are slidably provided inside the two box bodies (14). The bottom ends of the two pistons (15) are fixedly connected to push rods (16), and the bottom ends of the two push rods (16) are respectively fixedly connected to the two bottom plates (13).

4. The protective cover for the reflow soldering process according to claim 3, characterized in that: The top of the cover body (1) is fixedly connected to two box bodies (17), the inner sides of the two box bodies (17) are both arranged to be open, pistons (18) are slidably arranged inside the two box bodies (17), the inner sides of the two pistons (18) are both fixedly connected to moving rods (19), and the outer sides of the two box bodies (17) are both fixedly embedded with pipes (20), and the outer ends of the two pipes (20) are respectively fixedly embedded in the tops of the two box bodies (14).

5. The protective cover for the reflow soldering process according to claim 4, characterized in that: The tops of the two boxes (17) are fixedly connected to support blocks (21), one side of one of the support blocks (21) is fixedly connected to a motor (22), the output shaft of the motor (22) is fixedly connected to a bidirectional screw (23), the bidirectional screw (23) passes through the two support blocks (21), the outside of the bidirectional screw (23) is provided with two threaded blocks (24), the threaded blocks (24) are connected to the bidirectional screw (23) by threads, and the two threaded blocks (24) are fixedly connected to the inner ends of the two moving rods (19) respectively.

6. The protective cover for the reflow soldering process according to claim 5, characterized in that: A positioning rod (25) is fixedly connected to the inner side of the two second boxes (17), and the positioning rod (25) passes through the two threaded blocks (24) and is slidably connected thereto.

7. The protective cover for the reflow soldering process according to claim 3, characterized in that: Two stabilizing blocks (26) are fixedly connected to both sides of the cover body (1), and two stabilizing rods (27) are fixedly connected to the tops of the two bottom plates (13). The four stabilizing rods (27) respectively penetrate the four stabilizing blocks (26) and are slidably connected thereto.

8. The protective cover for the reflow soldering process according to claim 3, characterized in that: Two mounting holes (28) are provided inside the two bottom plates (13).

9. The protective cover for the reflow soldering process according to claim 5, characterized in that: The bidirectional screw (23) is connected to the support block (21) via a bearing.

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