Nitrogen quantitative controllable adjusting structure for reflow soldering
By designing a quantitative controllable nitrogen adjustment structure in the reflow soldering equipment, and using a motor-driven bevel gear system to control the nitrogen usage, the problem of instability in the welding environment caused by the fixed nitrogen usage is solved, and the welding quality and output are improved.
Patent Information
- Application Number
- CN202422120683.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-30
AI Technical Summary
When using nitrogen in existing reflow soldering equipment, the amount of nitrogen used is a fixed amount, which makes it impossible to accurately match the oxygen concentration in the furnace, affecting the stability and efficiency of the welding environment, and reducing welding quality and output.
A quantitative controllable adjustment structure for nitrogen gas is designed, and the bevel gear is driven by a motor to drive the bevel gear ring to control the rotation of the push rod and the rotation ring, the size of the plate blocking opening is adjusted to control the nitrogen usage, and the sealing ring is used to ensure that nitrogen does not leak.
It realizes precise control of nitrogen usage, improves the stability of the welding environment and welding quality, and improves welding output.
Smart Images
Figure CN223070602U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of reflow soldering, and particularly relates to a nitrogen quantitative controllable adjustment structure for reflow soldering. Background Technique
[0002] The use of nitrogen in reflow soldering is to create a low-oxygen environment, thereby reducing oxidation during the soldering process, improving the wetting force of soldering, reducing the generation of solder balls, and avoiding problems such as bridging.
[0003] When the existing reflow soldering equipment uses nitrogen, the usage amount of nitrogen is usually set to a fixed amount, resulting in the inability to accurately match the oxygen concentration in the furnace chamber, thus affecting the stability and efficiency of the soldering environment, reducing the quality and output of soldering. Therefore, we propose a nitrogen quantitative controllable adjustment structure for reflow soldering. Summary of the Invention
[0004] The purpose of the utility model is to provide a nitrogen quantitative controllable adjustment structure for reflow soldering. By setting a quantitative adjustment component, specifically starting the motor to drive the bevel gear ring to rotate through the bevel gear, the bevel gear ring will drive the push rod to push the connecting frame, and the connecting frame will drive the rotating ring to rotate clockwise or counterclockwise. The adjusting plate will block the opening, thereby controlling the size of the opening, and thus controlling the usage amount of nitrogen. It can control the usage amount of nitrogen according to different needs, make the soldering environment more stable, improve the quality and output of soldering, and solve the problem that when the existing reflow soldering equipment uses nitrogen, the usage amount of nitrogen is usually set to a fixed amount, resulting in the inability to accurately match the oxygen concentration in the furnace chamber, thus affecting the stability and efficiency of the soldering environment, reducing the quality and output of soldering.
[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:
[0006] The utility model is a nitrogen quantitative controllable adjustment structure for reflow soldering, including a quantitative adjustment pipe. A motor is fixedly connected to the top of the quantitative adjustment pipe. A quantitative adjustment component is arranged inside the quantitative adjustment pipe. The quantitative adjustment component includes an inner pipe. A fixed disk is fixedly connected to the inner wall of the inner pipe. A plurality of openings are opened inside the fixed disk. The plurality of openings are arranged in a circumferential array centered on the fixed disk. A rotating ring is arranged on the left side of the inner pipe. A plurality of adjusting plates are fixedly connected to the inner wall of the rotating ring. The plurality of adjusting plates are arranged in a circumferential array centered on the rotating ring. A connecting frame is fixedly connected to the top of the rotating ring. The top of the connecting frame penetrates through the inner pipe and extends to the outside. A straight slot is opened inside the connecting frame. An arc-shaped slot is opened on the top of the inner pipe. The inner wall of the arc-shaped slot is in contact with the outer surface of the connecting frame.
[0007] Furthermore, a flow guiding ring is fixedly connected to the inner wall of the inner tube. A cavity is formed between the flow guiding ring and the inner tube. A pushing ring is arranged inside the cavity. A fixing ring is fixedly connected to the outer surface of the flow guiding ring. The outer surface of the fixing ring is fixedly connected to the inner wall of the inner tube. A plurality of sliding rods are fixedly connected to the left side of the pushing ring. The left sides of the sliding rods penetrate through the fixing ring and extend to the outside. The sliding rods are slidably connected to the fixing ring. Springs are sleeved on the outer sides of the plurality of sliding rods. The left sides of the springs are fixedly connected to the right side of the fixing ring. The right sides of the springs are fixedly connected to the left side of the pushing ring.
[0008] Furthermore, a bevel gear is fixedly connected to the output end of the bottom of the motor. A bevel gear ring is rotatably connected to the outer side of the inner tube. The bevel gear ring is meshed with the bevel gear. A push rod is fixedly connected to the right side of the bevel gear ring. The outer surface of the push rod contacts the inner wall of the connecting frame.
[0009] Furthermore, a conical guiding block is fixedly connected to the center of the right side of the fixed disk. The conical guiding block is conical. The conical guiding block is wider on the left and narrower on the right. An annular groove one is formed on the right side of the rotating ring. A sealing ring one is sleeved inside the annular groove one. The right side of the sealing ring one contacts the left side of the fixed disk.
[0010] Furthermore, the opposite sides of the flow guiding ring and the rotating ring are both conical surfaces. An annular groove two is formed on the conical surface of the flow guiding ring close to the rotating ring. A sealing ring two is sleeved inside the annular groove two. The outer surface of the sealing ring two contacts the conical surface on the rotating ring.
[0011] Furthermore, the outer ring of the pushing ring contacts the inner wall of the inner tube. The right side of the pushing ring contacts the left side of the rotating ring. Limiting rings are contacted on both the left side and the right side of the bevel gear ring. The inner surfaces of the two limiting rings are fixedly connected to the outer surface of the inner tube.
[0012] The utility model has the following beneficial effects:
[0013] 1. By setting a quantitative adjustment component in the utility model, specifically, when the motor is started, the bevel gear drives the bevel gear ring to rotate. Then the bevel gear ring drives the push rod to push the connecting frame. The connecting frame drives the rotating ring to rotate clockwise or counterclockwise. The adjusting plate will block the opening, thereby controlling the size of the opening and controlling the usage amount of nitrogen. It can control the usage amount of nitrogen according to different needs, make the welding environment more stable, and improve the quality and output of welding.
[0014] 2. By setting a pushing ring in the utility model, specifically, the pushing ring will push the rotating ring under the elastic action of the spring, so that the sealing ring one on the rotating ring is closely attached to the left side of the fixed disk, thereby avoiding nitrogen leakage. At the same time, the sealing ring two on the flow guiding ring will be closely attached to the inner wall of the rotating ring, playing a sealing role again. It can not only play a sealing role, but also does not affect the rotation of the rotating ring.
[0015] Of course, it is not necessary for any product implementing the present utility model to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0017] Figure 1 Schematic diagram of the overall structure of the present utility model;
[0018] Figure 2 Schematic diagram of the front sectional structure of the quantitative adjustment tube of the present utility model;
[0019] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of A in;
[0020] Figure 4 Schematic diagram of the overall structure of the swivel ring of the present utility model;
[0021] Figure 5 Schematic diagram of the top structure of the inner tube of the present utility model.
[0022] In the drawings, the list of components represented by each reference numeral is as follows:
[0023] 1. Quantitative adjustment tube; 11. Motor; 111. Bevel gear; 12. Quantitative adjustment assembly; 121. Inner tube; 122. Fixed disk; 221. Opening; 222. Conical guide block; 123. Swivel ring; 231. Seal ring one; 232. Connecting frame; 233. Adjusting plate; 124. Arc groove; 13. Flow guide ring; 131. Seal ring two; 132. Pushing ring; 133. Fixed ring; 134. Slide bar; 135. Spring; 14. Bevel gear ring; 141. Push rod; 2. Air outlet; 3. Air inlet. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the 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 belong to the scope of protection of the present utility model.
[0025] Please refer to Figures 1-5As shown in the figure, the utility model is a nitrogen quantitative controllable adjustment structure for reflow soldering, including a quantitative adjustment pipe 1. A motor 11 is fixedly connected to the top of the quantitative adjustment pipe 1. A quantitative adjustment component 12 is arranged inside the quantitative adjustment pipe 1. The quantitative adjustment component 12 includes an inner pipe 121. A fixed disk 122 is fixedly connected to the inner wall of the inner pipe 121. A plurality of openings 221 are formed inside the fixed disk 122. The plurality of openings 221 are arranged in a circumferential array centered on the fixed disk 122. A rotating ring 123 is arranged on the left side of the inner pipe 121. A plurality of adjusting plates 233 are fixedly connected to the inner wall of the rotating ring 123. The plurality of adjusting plates 233 are arranged in a circumferential array centered on the rotating ring 123. A connecting frame 232 is fixedly connected to the top of the rotating ring 123. The top of the connecting frame 232 penetrates through the inner pipe 121 and extends to the outside. A straight slot is formed inside the connecting frame 232. An arc-shaped slot 124 is formed at the top of the inner pipe 121. The inner wall of the arc-shaped slot 124 is in contact with the outer surface of the connecting frame 232. By setting the quantitative adjustment component 12, specifically, when the motor 11 is started, the bevel gear 111 drives the bevel gear ring 14 to rotate. Then the bevel gear ring 14 drives the push rod 141 to push the connecting frame 232. The connecting frame 232 drives the rotating ring 123 to rotate clockwise or counterclockwise. The adjusting plate 233 will block the opening 221, thereby controlling the size of the opening 221, and thus controlling the amount of nitrogen used. It can control the amount of nitrogen according to different needs, make the welding environment more stable, and improve the welding quality and output.
[0026] A flow guiding ring 13 is fixedly connected to the inner wall of the inner pipe 121. A cavity is formed between the flow guiding ring 13 and the inner pipe 121. A push ring 132 is arranged inside the cavity. A fixed ring 133 is fixedly connected to the outer surface of the flow guiding ring 13. The outer surface of the fixed ring 133 is fixedly connected to the inner wall of the inner pipe 121. A plurality of sliding rods 134 are fixedly connected to the left side of the push ring 132. The left side of the sliding rods 134 penetrates through the fixed ring 133 and extends to the outside. The sliding rods 134 are slidably connected to the fixed ring 133. A plurality of springs 135 are sleeved on the outer sides of the plurality of sliding rods 134. The left side of the spring 135 is fixedly connected to the right side of the fixed ring 133. The right side of the spring 135 is fixedly connected to the left side of the push ring 132. By setting the push ring 132, specifically, the push ring 132 will push the rotating ring 123 under the elastic action of the spring 135, so that the sealing ring 1 231 on the rotating ring 123 is closely attached to the left side of the fixed disk 122, thereby avoiding nitrogen leakage. At the same time, the sealing ring 2 131 on the flow guiding ring 13 will be closely attached to the inner wall of the rotating ring 123, playing a sealing role again. It can not only play a sealing role, but also does not affect the rotation of the rotating ring 123.
[0027] At the bottom output end of the motor 11, a bevel gear 111 is fixedly connected. On the outer side of the inner tube 121, a bevel gear ring 14 is rotatably connected. The bevel gear ring 14 is meshed with the bevel gear 111. On the right side of the bevel gear ring 14, a push rod 141 is fixedly connected. The outer surface of the push rod 141 contacts the inner wall of the connecting frame 232. Since the push rod 141 slides in the connecting frame 232, it will not affect the rotation of the bevel gear ring 14 driving the push rod 141.
[0028] At the center of the right side of the fixed disk 122, a conical guide block 222 is fixedly connected. The conical guide block 222 is conical in shape, and the conical guide block 222 is wider on the left and narrower on the right. On the right side of the rotating ring 123, a first annular groove is formed. Inside the first annular groove, a first sealing ring 231 is sleeved. The right side of the first sealing ring 231 contacts the left side of the fixed disk 122. After the nitrogen gas contacts the conical guide block 222, it will be diverted by the conical guide block 222, enabling the nitrogen gas to be discharged smoothly through a plurality of openings 221.
[0029] On the corresponding sides of the flow guiding ring 13 and the rotating ring 123, both are conical surfaces. On the conical surface of the flow guiding ring 13 close to the rotating ring 123, a second annular groove is formed. Inside the second annular groove, a second sealing ring 131 is sleeved. The outer surface of the second sealing ring 131 contacts the conical surface on the rotating ring 123. The first sealing ring 231 and the second sealing ring 131 are used to play a sealing role, thus avoiding nitrogen gas leakage.
[0030] The outer ring of the push ring 132 contacts the inner wall of the inner tube 121, and the right side of the push ring 132 contacts the left side of the rotating ring 123. On the left and right sides of the bevel gear ring 14, limit rings are in contact. The inner surfaces of the two limit rings are fixedly connected to the outer surface of the inner tube 121. The limit rings are used to limit and stabilize the bevel gear ring 14, making the rotation of the bevel gear ring 14 more stable.
[0031] A specific application of this embodiment is:
[0032] Connect the air inlet 3 to the intake pipe and the air outlet 2 to the outlet pipe. Then, nitrogen enters the inner pipe 121 from the air inlet 3. After the nitrogen contacts the conical guide block 222, it will be split by the conical guide block 222, enabling the nitrogen to pass through multiple openings 221 smoothly and then be discharged from the air outlet 2 on the left side of the inner pipe 121. By starting the motor 11, the bevel gear 111 drives the bevel gear ring 14 to rotate. Then, the bevel gear ring 14 drives the push rod 141 to push the connecting frame 232. The connecting frame 232 slides in the arc-shaped groove 124 and drives the rotating ring 123 to rotate clockwise or counterclockwise. When the rotating ring 123 rotates, it drives the adjusting plate 233 to rotate together. When the adjusting plate 233 moves to the opening 221, it will block the opening 221, thereby controlling the size of the opening 221. When the opening 221 decreases, the nitrogen flow rate decreases; when the opening 221 increases, the nitrogen flow rate increases, thus controlling the nitrogen usage. It can control the nitrogen dosage according to different needs, making the welding environment more stable and improving the welding quality and output. The push ring 132 will push the rotating ring 123 under the elastic action of the spring 135, making the sealing ring one 231 on the rotating ring 123 closely adhere to the left side of the fixed disk 122, thereby preventing nitrogen leakage. At the same time, the sealing ring two 131 on the diversion ring 13 will closely adhere to the inner wall of the rotating ring 123, achieving a sealing effect again. It can not only play a sealing role but also not affect the rotation of the rotating ring 123.
[0033] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0034] The above-disclosed preferred embodiments of the present invention are only used to help explain the present invention. The preferred embodiments do not elaborate on all the details and do not limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.
Claims
1. A nitrogen quantitative controllable adjustment structure for reflow soldering, comprising a quantitative adjustment pipe (1), a motor (11) is fixedly connected to the top of the quantitative adjustment pipe (1), and a quantitative adjustment component (12) is arranged inside the quantitative adjustment pipe (1), characterized in that: The quantitative adjustment component (12) includes an inner tube (121). A fixed disk (122) is fixedly connected to the inner wall of the inner tube (121). A plurality of openings (221) are formed inside the fixed disk (122). The plurality of openings (221) are arranged in a circumferential array centered on the fixed disk (122). A rotating ring (123) is arranged on the left side of the inner tube (121). A plurality of adjusting plates (233) are fixedly connected to the inner wall of the rotating ring (123). The plurality of adjusting plates (233) are arranged in a circumferential array centered on the rotating ring (123). A connecting frame (232) is fixedly connected to the top of the rotating ring (123). The top of the connecting frame (232) penetrates through the inner tube (121) and extends to the outside. A straight notch is formed inside the connecting frame (232). An arc-shaped groove (124) is formed at the top of the inner tube (121). The inner wall of the arc-shaped groove (124) contacts the outer surface of the connecting frame (232).
2. The nitrogen gas quantitative controllable adjustment structure for reflow soldering according to claim 1, wherein A flow guiding ring (13) is fixedly connected to the inner wall of the inner tube (121). A cavity is formed between the flow guiding ring (13) and the inner tube (121). A pushing ring (132) is arranged inside the cavity. A fixed ring (133) is fixedly connected to the outer surface of the flow guiding ring (13). The outer surface of the fixed ring (133) is fixedly connected to the inner wall of the inner tube (121). A plurality of sliding rods (134) are fixedly connected to the left side of the pushing ring (132). The left side of the sliding rods (134) penetrates through the fixed ring (133) and extends to the outside. The sliding rods (134) are slidably connected to the fixed ring (133). A spring (135) is sleeved on the outer sides of the plurality of sliding rods (134). The left side of the spring (135) is fixedly connected to the right side of the fixed ring (133). The right side of the spring (135) is fixedly connected to the left side of the pushing ring (132).
3. The nitrogen gas quantitative controllable adjustment structure for reflow soldering according to claim 2, wherein, A bevel gear (111) is fixedly connected to the bottom output end of the motor (11). A bevel gear ring (14) is rotatably connected to the outside of the inner tube (121). The bevel gear ring (14) is meshed with the bevel gear (111). A push rod (141) is fixedly connected to the right side of the bevel gear ring (14). The outer surface of the push rod (141) contacts the inner wall of the connecting frame (232).
4. A nitrogen gas quantitative controllable adjustment structure for reflow soldering according to claim 3, characterized in that, A conical guiding block (222) is fixedly connected to the center of the right side of the fixed disk (122). The conical guiding block (222) is conical in shape and is wider on the left and narrower on the right.
5. A nitrogen quantitative controllable adjustment structure for reflow soldering according to claim 4, characterized in that, A first annular groove is formed on the right side of the rotating ring (123). A first sealing ring (231) is sleeved inside the first annular groove. The right side of the first sealing ring (231) contacts the left side of the fixed disk (122).
6. A nitrogen quantitative controllable adjustment structure for reflow soldering according to claim 5, characterized in that, The opposite sides of the flow guiding ring (13) and the rotating ring (123) are both conical surfaces. A second annular groove is formed on the conical surface of the flow guiding ring (13) close to the rotating ring (123). A second sealing ring (131) is sleeved inside the second annular groove. The outer surface of the second sealing ring (131) contacts the conical surface on the rotating ring (123).
7. A nitrogen quantitative controllable adjustment structure for reflow soldering according to claim 4, characterized in that, The outer ring of the push ring (132) contacts the inner wall of the inner tube (121), and the right side of the push ring (132) contacts the left side of the rotating ring (123).
8. A nitrogen gas quantitative controllable adjustment structure for reflow soldering according to claim 4, characterized in that, Both the left and right sides of the bevel gear ring (14) contact limit rings, and the inner surfaces of the two limit rings are fixedly connected to the outer surface of the inner tube (121).