Section bar external blowing device and hot dipping production line
By designing the inclined air outlet channel and air passage structure of the profile external blowing device, the problem of uneven thickness of the galvanized layer on the profile surface was solved, and the uniformity and consistency of the galvanized layer quality were achieved.
Patent Information
- Application Number
- CN202423093972.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-13
AI Technical Summary
In the hot-dip galvanizing process, it is difficult to control the uneven thickness of the zinc coating on the profile surface, which leads to reduced anti-corrosion effect and product quality problems.
Design a profile external blowing device that uses high-pressure gas to remove excess zinc liquid through an inclined air outlet channel. Combined with the main and branch air channel structures on the first and second baffles, it achieves uniform airflow distribution and oblique blowing, ensuring the uniformity of the zinc coating.
It significantly improves the uniformity of the galvanized layer, reduces coating damage caused by airflow turbulence, and enhances the consistency of galvanizing quality.
Smart Images
Figure CN223522633U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to metal plating spare technical field more specifically, relate to a section bar external blowing device and hot plating production line. BACKGROUND
[0002] In modern manufacturing industry, galvanizing of section bar surface is a common metal anticorrosion technology, which provides long-term protection effect by forming a dense zinc layer on the surface of section bar. However, in the process of hot galvanizing, the fluidity of zinc liquid and the precision of process control have a direct impact on the quality of the coating. Especially during the process of pulling or transferring the section bar from the zinc liquid tank, the excess zinc liquid attached is often difficult to distribute uniformly or completely remove, resulting in uneven thickness of the galvanized layer. Such uneven galvanized layer not only reduces the anticorrosion effect, but also may cause surface quality problems of the product, and even affect the stability of the subsequent processing technology. SUMMARY
[0003] The utility model aims at solving one of the technical problems in the related art to some extent. To this end, the utility model provides a section bar external blowing device, which efficiently removes excess zinc liquid through an inclined gas outlet channel, improves the uniformity of the galvanized layer and reduces the damage to the coating caused by airflow turbulence.
[0004] The utility model further provides a hot plating production line with the above-mentioned external blowing device.
[0005] The technical scheme adopted by the utility model is as follows: a section bar external blowing device is provided, which comprises a frame, a first baffle and a second baffle. The first baffle and the second baffle are respectively installed on both sides of the frame. The first baffle has a first inlet opening adapted to the cross section of the section bar. The frame has a second inlet opening. One of the first inlet opening and the second inlet opening is provided with a protrusion, and the other is provided with a groove matched with the protrusion. The two form an inclined gas outlet channel in combination. The first baffle and / or the frame realize gas delivery function through an external gas source.
[0006] After adopting the above structure, the utility model can effectively remove the excess zinc liquid attached after galvanizing the section bar, thereby significantly improving the uniformity of the galvanized layer. The inclined gas outlet channel formed by the cooperation of the protrusion and the groove on the first baffle and the frame can guide the high-pressure gas obliquely to the surface of the section bar. This design not only improves the blowing effect, but also reduces the risk of coating damage caused by airflow turbulence.
[0007] According to one embodiment of the utility model, the protrusion is formed by inclining the edge of the first inlet opening towards one side of the frame, so that the protrusion is profile-adapted to the first inlet opening, i.e. the protrusion matches the profile of the section bar.
[0008] According to one embodiment of the present application, the groove is formed by recessing the edge of the second inlet port towards the side of the first baffle; similarly, the groove is adapted to the profile of the second inlet port, that is, the groove matches the profile of the section bar.
[0009] According to one embodiment of the present application, the first baffle is provided with a first main air channel and a plurality of first branch air channels, the first main air channel is arranged on one side of the second inlet port, and the plurality of first branch air channels are in communication with the first main air channel and the second inlet port, for realizing uniform introduction of gas.
[0010] According to one embodiment of the present application, the first baffle is provided with a second main air channel and a plurality of second branch air channels, the second main air channel is arranged on the other side of the second inlet port, and the plurality of second branch air channels are in communication with the second main air channel and the second inlet port. The distribution and guidance of the airflow are further optimized. The second main air channel is located on the other side of the second inlet port, can uniformly receive the input of the gas source, and accurately guide the gas source to the second inlet port through the plurality of second branch air channels, so as to realize the omnidirectional distribution of the gas around the section bar. Such a design effectively enhances the gas blowing coverage, improves the efficiency of removing excess zinc liquid, avoids the influence of local airflow being too strong or too weak on the quality of the plated layer, and provides reliable guarantee for the uniformity of the section bar surface treatment.
[0011] A hot-dip production line comprising the section bar external blowing device.
[0012] According to one embodiment of the present application, the hot-dip production line further comprises a hot-dip tank, the hot-dip tank comprises a liquid storage pool and a heating pipe arranged in the liquid storage pool, and the section bar external blowing device is arranged on the feeding side and the discharging side of the liquid storage pool.
[0013] According to one embodiment of the present application, the hot-dip tank further comprises a feeding device, and the feeding device is used for conveying the section bar to the liquid storage pool.
[0014] According to one embodiment of the present application, the liquid storage pool is further provided with an overflow pipe.
[0015] According to one embodiment of the present application, the hot-dip production line further comprises a zinc pot and a transfer pump, the overflow pipe is in communication with the zinc pot, and the transfer pump is used for conveying the zinc liquid in the zinc pot to the liquid storage pool. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.
[0017] Figure 1 It is the perspective view of the hot plating production line in the embodiment of the utility model.
[0018] Figure 2 It is the perspective view of the transfer pump in the embodiment of the utility model.
[0019] Figure 3 It is the perspective view of the hot plating box in the embodiment of the utility model.
[0020] Figure 4 It is the perspective view of the liquid storage pool in the embodiment of the utility model.
[0021] Figure 5 It is the structural schematic view of the liquid storage pool in the embodiment of the utility model.
[0022] Figure 6 It is the perspective view of the external blowing device in the embodiment of the utility model.
[0023] Figure 7 It is the explosion view of the external blowing device in the embodiment of the utility model.
[0024] Figure 8 It is the perspective view of the first baffle in the embodiment of the utility model.
[0025] Figure 9 It is the partial enlarged view of the external blowing device in the embodiment of the utility model.
[0026] Explanation of reference numerals in the drawing:
[0027] 10, hot plating box; 20, zinc pot; 30, transfer pump;
[0028] 11, feeding device; 12, liquid storage pool; 13, heating pipe; 14, external blowing device; 15, overflow pipe;
[0029] 141, frame; 142, first baffle; 143, second baffle;
[0030] 141a, first feeding port; 141b, protrusion;
[0031] 142a, second feeding port; 142b, groove; 142c, first main air channel; 142d, first branch air channel; 142e, second main air channel; 142f, second branch air channel. DETAILED DESCRIPTION
[0032] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model. Example 1
[0033] like Figures 6-9 As shown, this embodiment discloses a profile external blowing device 14, including a frame 141, a first baffle 142 and a second baffle 143. The first baffle 142 and the second baffle 143 are respectively installed on both sides of the frame 141. The first baffle 142 has a first feed port 141a adapted to the profile cross section. The frame 141 has a second feed port 142a. One of the first feed port 141a and the second feed port 142a is provided with a protrusion 141b, and the other is provided with a groove 142b that cooperates with the protrusion 141b. The two are combined to form an inclined air outlet channel. The first baffle 142 and / or the frame 141 realize the gas delivery function through an external air source.
[0034] Furthermore, in this embodiment, the first baffle 142 is fixedly installed on the front side of the frame 141, and the second baffle 143 is fixedly installed on the rear side of the frame 141. The first feed port 141a on the first baffle 142 and the second feed port 142a on the frame 141 are of the same size and both match the outer contour of the profile.
[0035] Furthermore, combined Figure 8 As shown, in this embodiment, the first baffle 142 is externally connected to a high-pressure gas source. The first baffle 142 is provided with a first main gas channel 142c and multiple first branch gas channels 142d. The first main gas channel 142c is located on one side of the second feed inlet 142a, and the multiple first branch gas channels 142d connect the first main gas channel 142c to the second feed inlet 142a to achieve uniform gas introduction. The first baffle 142 is provided with a second main gas channel 142e and multiple second branch gas channels 142f. The second main gas channel 142e is located on the other side of the second feed inlet 142a, and the multiple second branch gas channels 142f connect the second main gas channel 142e to the second feed inlet 142a.
[0036] Further, in the embodiment, the frame 141 is respectively provided with structures corresponding to the first main air duct 142c, the second main air duct 142e, the first branch air duct 142d and the second branch air duct 142f, and the structures are arranged in a mirror image manner. When the first baffle 142 is fixedly installed on the frame 141, each corresponding structure and the first main air duct 142c, the second main air duct 142e, the first branch air duct 142d and the second branch air duct 142f respectively jointly form an air path. The first feeding port 141a and the second feeding port 142a are arranged with a gap, and an external air source delivers high-pressure gas to the gap region between the first feeding port 141a and the second feeding port 142a through the air path, and makes the gas flow to the surface of the profile. The action of the high-pressure gas can effectively blow off the excess zinc liquid on the surface of the profile, so that the thickness of the zinc liquid attached to the surface of the profile is more uniform, and the surface of the profile after the hot dipping process is ensured to form a uniform and consistent galvanized layer.
[0037] Specifically, as shown in Figure 9 The protrusion 141b is formed by the edge of the first feeding port 141a being inclined towards the side of the frame 141, so that the protrusion 141b is adapted to the contour of the first feeding port 141a. The groove 142b is formed by the edge of the second feeding port 142a being recessed towards the side of the first baffle 142.
[0038] Further, in the embodiment, the protrusion 141b and the groove 142b form an inclined air duct, so that the first branch air duct 142d and the second branch air duct 142f blow obliquely to the first feeding port 141a and the second feeding port 142a. Through this design, the airflow forms an oblique blowing when flowing out, and directly acts on the surface of the profile, so that the surface of the profile is more uniformly covered by the airflow during the galvanizing process, and the consistency of the galvanizing quality is significantly improved.
[0039] Specifically, as shown in Figures 1-5 In another embodiment, a hot dipping production line is disclosed, which comprises the profile external blowing device 14 in the embodiment.
[0040] Specifically, the hot dipping production line further comprises a hot dipping box 10, the hot dipping box 10 comprises a liquid storage pool 12 and a heating pipe 13 arranged in the liquid storage pool 12, and the profile external blowing device 14 is arranged on the feeding side and the discharging side of the liquid storage pool 12. The hot dipping box 10 further comprises a feeding device 11 for conveying the profile to the liquid storage pool 12. The liquid storage pool 12 is further provided with an overflow pipe 15. The hot dipping production line further comprises a zinc pot 20 and a transfer pump 30, the overflow pipe 15 is communicated with the zinc pot 20, and the transfer pump 30 is used for transferring the zinc liquid in the zinc pot 20 to the liquid storage pool 12.
[0041] Further, the heating pipe 13 functions to regulate the temperature in the liquid pool 12, ensuring that the zinc liquid in the pool is always in a molten state. The feeding device 11 feeds the profile into the liquid pool 12, with the submerged depth of the profile being below the liquid level of the zinc liquid, so as to ensure that the surface of the profile is uniformly plated with a layer of zinc. During the movement of the profile, the profile will inevitably cause fluctuations and consumption of the zinc liquid in the liquid pool 12 due to the contact with the zinc liquid. In order to replenish the lost zinc liquid, the zinc liquid in the zinc pot 20 is delivered to the liquid pool 12 through the transfer pump 30. At the same time, the zinc liquid overflowing from the liquid pool 12 due to the rising of the liquid level will flow back to the zinc pot 20 through the overflow pipe 15, so as to maintain the balance of the zinc liquid in the entire system.
[0042] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0043] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0044] In the present application, unless otherwise specifically defined and limited, the "on" or "under" of the first feature to the second feature can be direct contact of the first and second features, or indirect contact of the first and second features through an intermediate medium. Moreover, the "above", "upper" and "top" of the first feature to the second feature can be directly above or obliquely above the first feature to the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "under" of the first feature to the second feature can be directly below or obliquely below the first feature to the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
[0045] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.
Claims
1. A profile external blowing device, characterized by: The device comprises a frame, a first baffle and a second baffle, the first baffle and the second baffle are respectively installed on both sides of the frame, the first baffle has a first feeding port matched with the profile section, the frame has a second feeding port, one of the first feeding port and the second feeding port is provided with a protrusion, and the other is provided with a groove matched with the protrusion, and the two combine to form an inclined gas outlet channel, and the first baffle and / or the frame realize the gas conveying function through an external gas source.
2. A profile external blowing device according to claim 1, characterized in that: The protrusion is formed by the edge of the first feeding port being inclined towards the side of the frame.
3. A profile extrusion blowing device according to claim 2, characterized in that: The groove is formed by the edge of the second feeding port being recessed towards the side of the first baffle.
4. A profile extrusion blowing device according to claim 1, characterized in that: The first baffle is provided with a first main gas channel and a plurality of first branch gas channels, the first main gas channel is arranged on one side of the second feeding port, and the plurality of first branch gas channels are in communication with the first main gas channel and the second feeding port.
5. A profile extrusion blowing device according to claim 4, characterised in that: The first baffle is provided with a second main gas channel and a plurality of second branch gas channels, the second main gas channel is arranged on the other side of the second feeding port, and the plurality of second branch gas channels are in communication with the second main gas channel and the second feeding port.
6. A hot dip production line characterized in that: The device comprises the profile external blowing device of any one of claims 1-5.
7. A hot dip production line according to claim 6, characterized in that: The device further comprises a hot dipping tank, the hot dipping tank comprises a liquid storage pool and a heating pipe arranged in the liquid storage pool, and the profile external blowing device is arranged on the feeding side and the discharging side of the liquid storage pool.
8. A hot dip production line according to claim 7, characterized in that: The hot dipping tank further comprises a feeding device for conveying the profile to the liquid storage pool.
9. A hot dip production line according to claim 7, characterized in that: The liquid storage pool is further provided with an overflow pipe.
10. A hot dip production line according to claim 9, characterized in that: The device further comprises a zinc pot and a transfer pump, the overflow pipe is in communication with the zinc pot, and the transfer pump is used for conveying zinc liquid in the zinc pot to the liquid storage pool. The device further comprises a zinc pot and a transfer pump, the overflow pipe is in communication with the zinc pot, and the transfer pump is used for conveying zinc liquid in the zinc pot to the liquid storage pool.