Aluminum alloy aging equipment

Abstract

The utility model provides aluminum alloy aging equipment, relates to the technical field of aluminum product processing C, and aims to solve the problem of waste of cooling heat of workpieces subjected to aging treatment. The aluminum alloy aging equipment comprises an aging furnace, a fan and a hot air recovery cover are arranged on the two opposite sides of the downstream of the aging furnace, and the hot air recovery cover communicates with a preheating device arranged on the upstream of the aging furnace and is used for conveying hot air to the preheating device. The heat recovery device can recover part of heat dissipated by cooling a workpiece subjected to aging treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum product processing, in particular to an aluminum alloy aging device. Background Art

[0002] After extrusion molding, aluminum alloys often need to be aged to release their stress. However, in existing conventional aluminum alloy aging equipment, since the aging process is not performed at normal temperatures, the aluminum alloy generally needs to be heated to a temperature above 100°C, or even around 200°C. The aluminum alloy sent out from the aging furnace has a higher temperature and contains more heat. However, in order to facilitate such aluminum alloys to enter the next process, they are usually forced to cool down by air cooling using a blower, which causes a large amount of heat to be lost to the atmosphere, wasting energy. Utility Model Content

[0003] The first purpose of the utility model is to provide an aluminum alloy aging device to solve the technical problem of heat waste in cooling the workpiece after aging treatment.

[0004] The aluminum alloy aging equipment provided by the utility model comprises an aging furnace, wherein fans and hot air recovery hoods are arranged on opposite sides of the downstream of the aging furnace, and the hot air recovery hoods are connected to a preheating device arranged upstream of the aging furnace and are used to transport hot air to the preheating device.

[0005] The beneficial effects brought by the aluminum alloy aging equipment of the utility model are:

[0006] A fan and a hot air recovery hood are arranged on opposite sides of the downstream of the aging furnace. The fan can be used to blow air to the aluminum alloy workpieces sent out of the aging furnace. After the air contacts the aluminum alloy workpiece, it absorbs the heat of the aluminum alloy workpiece, and then gathers to the hot air recovery hood and flows to the preheating device to heat the aluminum alloy workpiece that has not entered the aging furnace, thereby reducing the heating burden of the aging furnace, improving the utilization rate of the heat dissipated by the aluminum alloy workpiece in the cooling stage, and reducing energy consumption. It can also reduce the heating time during the aging process, extend the actual aging insulation time, and help improve the stability of the performance. Moreover, the fan and the hot air recovery hood are respectively arranged on opposite sides of the downstream, and the air blown by the fan is air that has not been heated by the aluminum alloy workpiece, and the air temperature is relatively low, which is conducive to improving the service life of the fan.

[0007] In a preferred technical solution, the fan and the hot air recovery hood are located on opposite sides of the aging furnace downstream in the horizontal direction.

[0008] In a preferred technical solution, the hot air recovery hood has an inlet end and an outlet end, the inlet end is rectangular; and the outlet end is projected along the air outlet direction of the fan and is completely located inside the edge of the inlet end.

[0009] In a preferred technical solution, the aluminum alloy aging equipment also includes a material frame, which is used to accommodate aluminum alloy workpieces, the horizontal dimension of the inlet end is greater than the width of the side of the material frame, and the vertical dimension of the inlet end is greater than the height of the side of the material frame.

[0010] In a preferred technical solution, the preheating device includes a hot air release hood, and the hot air release hood is located at the bottom of the preheating device.

[0011] In a preferred technical solution, the hot air recovery hood is connected to the preheating device through a hot air delivery duct assembly, and the hot air delivery duct assembly includes a duct body and an insulation layer, and the insulation layer covers the outer circumferential surface of the duct body in the circumferential direction of the duct body.

[0012] In a preferred technical solution, the hot air delivery duct assembly includes a first horizontal section, a first vertical section, a second horizontal section and a second vertical section, the first horizontal section, the first vertical section, the second horizontal section and the second vertical section are connected in sequence, the first horizontal section and the second vertical section are located on the downstream side of the aging furnace, and the second vertical section is located below the preheating device and connected to the hot air release hood.

[0013] In a preferred technical solution, the material of the pipe body is silicon carbide.

[0014] In the preferred technical solution, the material of the thermal insulation layer is thermal insulation cotton.

[0015] In a preferred technical solution, the aluminum alloy aging equipment further comprises a material frame, which is used to accommodate aluminum alloy workpieces, and the length and width of the hot air release hood are correspondingly greater than or equal to the length and width of the bottom surface of the material frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments or background technologies of the present invention, the drawings required for use in the embodiments or background technology descriptions are briefly introduced below. Obviously, the drawings described below are merely embodiments of the present invention, and ordinary technicians in this field can obtain other drawings based on the provided drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of the structure of an aluminum alloy aging device provided in an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the structure of the aluminum alloy aging equipment provided by the embodiment of the utility model viewed from another direction;

[0019] Figure 3This is a schematic structural diagram of the aluminum alloy aging equipment provided by an embodiment of the utility model when viewed from another direction.

[0020] Description of reference numerals:

[0021] 10-aging furnace; 20-preheating device; 21-hot air release hood; 30-blower; 40-hot air recovery hood; 50-hot air delivery duct assembly; 51-first horizontal section; 52-first vertical section; 53-second horizontal section; 54-second horizontal section; 60-material frame; 71-furnace entry track; 72-furnace exit track. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] Embodiment 1:

[0024] Figure 1 A schematic diagram of the structure of an aluminum alloy aging device provided in an embodiment of the utility model; Figure 2 This is a schematic diagram of the structure of the aluminum alloy aging equipment provided by the embodiment of the utility model viewed from another direction. Figure 1-Figure 2 As shown, the aluminum alloy aging equipment provided by the first embodiment of the utility model includes an aging furnace 10, and fans 30 and hot air recovery hoods 40 are provided on opposite sides of the downstream of the aging furnace 10. The hot air recovery hood 40 is connected to the preheating device 20 arranged upstream of the aging furnace 10 and is used to transport hot air to the preheating device 20.

[0025] Specifically, in this embodiment, the fan 30 can be a blower 30, which is used as a power source to blow air to the aluminum alloy workpiece sent out of the aging furnace 10, with a large air volume, low power consumption, and strong continuous working ability. Of course, in another implementation, the fan 30 can also be a high-pressure fan 30.

[0026] The two opposite sides downstream of the aging furnace 10 refer to Figure 1 The plane of the figure shown is a vertical plane, and the blower 30 and the hot air recovery hood 40 are respectively located downstream of the aging furnace 10, and the upper and lower sides or left and right sides of the operation area of ​​the aluminum alloy workpiece (not shown in the figure) are Figure 1 above and below the image frame, or perpendicular to Figure 1 The direction of the plane in which the image lies.

[0027] A fan 30 and a hot air recovery hood 40 are arranged on opposite sides of the downstream of the aging furnace 10. The fan 30 can be used to blow air to the aluminum alloy workpiece sent out of the aging furnace 10. After the air contacts the aluminum alloy workpiece, it absorbs the heat of the aluminum alloy workpiece, and then gathers to the hot air recovery hood 40 and flows to the preheating device 20 to heat the aluminum alloy workpiece that has not entered the aging furnace 10, thereby reducing the heating burden of the aging furnace 10, improving the utilization rate of the heat dissipated by the aluminum alloy workpiece in the cooling stage, and reducing energy consumption. It can also reduce the heating time during the aging process, extend the actual aging insulation time, and help improve the stability of the performance. Moreover, the fan 30 and the hot air recovery hood 40 are respectively arranged on opposite sides of the downstream, and the air blown by the fan 30 is air that has not been heated by the aluminum alloy workpiece, and the air temperature is relatively low, which is conducive to improving the service life of the fan 30.

[0028] like Figure 1 and Figure 2 As shown, preferably, the fan 30 and the hot air recovery hood 40 are located on opposite sides of the downstream of the aging furnace 10 in the horizontal direction.

[0029] When the aluminum alloy workpiece fails in the aging furnace 10, the overall length of the aluminum alloy workpiece in each material frame 60 is perpendicular to the advancing direction of the aluminum alloy workpiece in the aging furnace 10 and is also perpendicular to the height direction, that is, the downstream of the aging furnace 10 on both sides in the horizontal direction. Therefore, the fan 30 and the hot air recovery hood 40 are arranged in this direction, so that the hot air blown out from the fan 30 can contact the cooling aluminum alloy workpiece over a longer length, thereby absorbing more heat, and finally being able to transport more heat to the preheating device 20.

[0030] like Figure 1 and Figure 2 As shown, preferably, the hot air recovery hood 40 has an inlet end and an outlet end, the inlet end is rectangular; and the outlet end is projected along the air outlet direction of the fan 30 and is completely located inside the edge of the inlet end.

[0031] The hot air recovery cover 40 has a square or rectangular shape in the sheet metal processing field, that is, the inlet end is a large rectangle or square, and the outlet end is a small circle. Furthermore, the horizontal projection of the outlet end can be located at the center of the inlet end.

[0032] By setting the outlet end to be completely located inside the inlet end along the projection of the air outlet direction, that is, the outlet end is smaller than the inlet end, the air that absorbs the heat of the aluminum alloy workpiece can be gathered in the hot air recovery hood 40. On the one hand, the air flow velocity can be increased, the passing time from the hot air recovery hood 40 to the preheating device 20 can be reduced, and the heat loss in the air flow process can be reduced. On the other hand, a pipe with a smaller cross-section can be used to transport hotter air, which reduces the heat exchange area between the air and the outside world, and can also reduce the heat loss in the gas flow process, so that a larger proportion of the absorbed energy can reach the preheating device 20.

[0033] like Figure 1 and Figure 2 As shown, preferably, the aluminum alloy aging equipment also includes a material frame 60, which is used to accommodate aluminum alloy workpieces, and the horizontal dimension of the inlet end is greater than the width of the side of the material frame 60, and the vertical dimension of the inlet end is greater than the height of the side of the material frame 60.

[0034] The side of the material frame 60 refers to the side of the material frame 60 at Figure 1 The side surface in the plane of the image frame, rather than the side surface of the material frame 60 facing the upstream or downstream direction of its conveying direction.

[0035] Although airflow is formed under the drive of the fan 30 and has an overall flow trend, since the material frame 60 itself is only a frame structure and does not block the diffusion of airflow on all sides, the air will diffuse upstream and downstream of the conveying direction of the aluminum alloy workpiece, as well as above and below the aluminum alloy workpiece before, during and after passing through the aluminum alloy workpiece. By setting the horizontal and vertical dimensions of the inlet end to be larger than the height and width of the side of the material frame 60, more hot air can be collected, which is conducive to more fully utilizing the heat of cooling the aluminum alloy workpiece.

[0036] like Figure 1 and Figure 2 As shown, preferably, the preheating device 20 includes a hot air release cover 21, and the hot air release cover 21 is located at the bottom of the preheating device 20.

[0037] The hot air release cover 21 is arranged at the bottom of the preheating device 20. Since the hot air has a relatively low density, the hot air can spontaneously pass through the material frame 60 from bottom to top after leaving the hot air release cover 21. Moreover, the hot air release cover 21 is arranged at the bottom of the preheating device 20, and the hot air released by it is relatively uniform on the horizontal plane. The following problem can be avoided: when the hot air release cover 21 is located on the side of the preheating device 20, the hot air floats upward during flow, and the aluminum alloy workpiece far away from the hot air release cover 21 cannot be heated.

[0038] Figure 3A schematic diagram of the structure of the aluminum alloy aging equipment provided by the embodiment of the utility model viewed from another direction; Figure 1 , Figure 2 and Figure 3 As shown, preferably, the hot air recovery hood 40 is connected to the preheating device 20 through a hot air delivery duct assembly 50. The hot air delivery duct assembly 50 includes a duct body and an insulation layer. The insulation layer covers the outer circumferential surface of the duct body in the circumferential direction of the duct body.

[0039] By providing a heat-insulating layer on the outside of the pipe body and circumferentially covering the outer peripheral surface of the pipe body, the heat loss of the hot air when flowing in the pipe body can be reduced, thereby increasing the temperature delivered to the preheating device 20.

[0040] like Figure 2 and Figure 3 As shown, preferably, the hot air delivery duct assembly 50 includes a first horizontal section 51, a first vertical section 52, a second horizontal section 54 and a second vertical section, the first horizontal section 51, the first vertical section 52, the second horizontal section 54 and the second vertical section are connected in sequence, the first horizontal section 51 and the second vertical section are located on the downstream side of the aging furnace 10, and the second vertical section is located below the preheating device 20 and is connected to the hot air release hood 21.

[0041] The first horizontal section 51, the first vertical section 52 and the second vertical section may all be straight sections, and the second horizontal section 54 may be an L-shaped curved tube. The first horizontal section 51, the first vertical section 52, the second horizontal section 54 and the second vertical section may adopt an arc-shaped curved tube transition.

[0042] In this embodiment, Figure 1 The directions of the sections of the hot air delivery duct assembly 50 from the hot air recovery hood 40 to the hot air release hood 21 are as follows: the first horizontal section 51 extends toward the observer, and then the first vertical section 52 extends toward the observer. Figure 1 The second horizontal section 54 extends downwardly as shown. Figure 1 The left side of the figure is extended, and then extends away from the viewer, and the second vertical segment extends to Figure 1 It extends upward as shown until it connects to the hot air release cover 21.

[0043] In addition, the first horizontal section 51 and the second vertical section are arranged on the downstream side of the aging furnace 10. In this embodiment, the two are arranged Figure 1 The side facing the viewer is shown.

[0044] The first horizontal section 51 and the second vertical section are arranged on the downstream side of the aging furnace 10, and the second vertical section is arranged below the preheating device 20, so that the second horizontal section 54 can be buried underground to avoid direct contact between the second horizontal section 54 and the air, thereby reducing contact with flowing objects and reducing the loss of hotter air in the second horizontal section 54.

[0045] Preferably, the material of the pipe body is silicon carbide.

[0046] Silicon carbide is used as the material of the pipe body, which has good heat resistance and long service life.

[0047] Preferably, the material of the thermal insulation layer is thermal insulation cotton.

[0048] The thermal insulation cotton used as the material of the thermal insulation layer has great flexibility and can cover the outer peripheral surface of the pipe body more tightly, thereby reducing heat leakage.

[0049] like Figure 1 As shown, preferably, the aluminum alloy aging equipment further includes a material frame 60 , which is used to accommodate aluminum alloy workpieces, and the length and width of the hot air release hood 21 are correspondingly greater than or equal to the length and width of the bottom surface of the material frame 60 .

[0050] In this embodiment, the hot air release cover 21 is also in the shape of the sky and the earth in the sheet metal process. The length and width of the air outlet of the hot air release cover 21 are 100mm larger than the length and width of the material frame 60. The length of the hot air release cover 21 and the length of the bottom surface of the material frame 60 refer to the length of the hot air release cover 21 perpendicular to the Figure 1 The width of the hot air release cover 21 and the width of the bottom surface of the material frame 60 are both the width of the hot air release cover 21 and the width of the bottom surface of the material frame 60. Figure 1 The size of the plane of the drawing sheet.

[0051] The width of the hot air release hood 21 is set to be greater than or equal to the length of the material frame 60, so that the aluminum alloy workpiece in the material frame 60 can be heated by the hot air blown from below over its substantially entire length, which can make the aluminum alloy workpiece be heated more thoroughly, and reduce the problem of different actual aging times of certain parts of the aluminum alloy workpiece due to different heating times, which ultimately leads to uneven aging effects.

[0052] In another implementation, even if the length and width of the hot air release hood 21 are equal to the length and width of the bottom surface of the material frame, since the gas flows divergently without peripheral constraints, it can also flow around the aluminum alloy workpiece and comprehensively heat the aluminum alloy workpiece.

[0053] In addition, the aluminum alloy aging equipment further includes an inlet track 71 and an outlet track 72 . The inlet track 71 is used for the feed frame 60 to carry the aluminum alloy workpiece into the aging furnace 10 , while the outlet track 72 is used for the feed frame 60 to carry the aluminum alloy workpiece out of the aging furnace 10 .

[0054] The operating principle of this embodiment is as follows:

[0055] When entering the furnace, the aluminum alloy workpiece and the material frame 60 are initially located on the furnace entry track 71, and after being heated and kept warm by the aging furnace 10, they are taken out of the furnace. After being taken out of the furnace, the material frame 60 and the aluminum alloy workpiece are located on the furnace exit track 72. The blower 30 is located on one side of the aluminum alloy workpiece when it is taken out of the furnace. When the aluminum alloy workpiece after aging is taken out of the furnace, the blower 30 starts blowing for 5min-8min, and the hotter air enters the hot air recovery hood 40, which is 100mm wider and higher than the side of the material frame 60. The hotter air is transported to the hot air release hood 21 through the hot air delivery duct assembly 50, and the hotter air releases heat to the unaged aluminum alloy workpiece in the preheating device 20, so that the aluminum alloy workpiece is heated. In this embodiment, the aluminum alloy workpiece can be heated by 60°C to 90°C in the preheating device 20.

[0056] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.

[0057] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0058] In the above embodiments, the descriptions of directions such as “upper” and “lower” are all based on the drawings.

[0059] The above description of the disclosed embodiments enables professionals in the field to implement or use the utility model. Various modifications to these embodiments will be apparent to professionals in the field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model.

[0060] Therefore, the present invention will not be limited to the embodiments shown herein but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An aluminum alloy aging equipment, characterized in that: The invention comprises an aging furnace (10), wherein fans (30) and hot air recovery hoods (40) are provided on opposite sides of the downstream of the aging furnace (10), and the hot air recovery hoods (40) are connected to a preheating device (20) provided upstream of the aging furnace (10) and are used to transport hot air to the preheating device (20).

2. The aluminum alloy aging equipment according to claim 1, characterized in that: The fan (30) and the hot air recovery hood (40) are located on opposite sides of the aging furnace (10) in the horizontal direction downstream.

3. The aluminum alloy aging equipment according to claim 2, characterized in that: The hot air recovery hood (40) has an inlet end and an outlet end, the inlet end is rectangular; and the outlet end is projected along the air outlet direction of the fan (30) and is completely located inside the edge of the inlet end.

4. The aluminum alloy aging equipment according to claim 3, characterized in that: The aluminum alloy aging equipment also includes a material frame (60), which is used to accommodate aluminum alloy workpieces. The horizontal dimension of the inlet end is greater than the width of the side of the material frame (60), and the vertical dimension of the inlet end is greater than the height of the side of the material frame (60).

5. The aluminum alloy aging equipment according to any one of claims 2 to 4, characterized in that: The preheating device (20) comprises a hot air release cover (21), and the hot air release cover (21) is located at the bottom of the preheating device (20).

6. The aluminum alloy aging equipment according to claim 5, characterized in that: The hot air recovery hood (40) is connected to the preheating device (20) via a hot air delivery duct assembly (50), wherein the hot air delivery duct assembly (50) comprises a duct body and a heat-insulating layer, wherein the heat-insulating layer covers the outer circumferential surface of the duct body in the circumferential direction of the duct body.

7. The aluminum alloy aging equipment according to claim 6, characterized in that: The hot air conveying duct assembly (50) comprises a first horizontal section (51), a first vertical section (52), a second horizontal section (54) and a second vertical section, wherein the first horizontal section (51), the first vertical section (52), the second horizontal section (54) and the second vertical section are connected in sequence, the first horizontal section (51) and the second vertical section are located on the downstream side of the aging furnace (10), and the second vertical section is located below the preheating device (20) and is connected to the hot air release hood (21).

8. The aluminum alloy aging equipment according to claim 6, characterized in that: The material of the pipeline body is silicon carbide.

9. The aluminum alloy aging equipment according to claim 6, characterized in that: The material of the thermal insulation layer is thermal insulation cotton.

10. The aluminum alloy aging equipment according to any one of claims 6 to 9, characterized in that: The aluminum alloy aging equipment further comprises a material frame (60), wherein the material frame (60) is used to accommodate aluminum alloy workpieces, and the length and width of the hot air release cover (21) are correspondingly greater than or equal to the length and width of the bottom surface of the material frame (60).

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