A circulating drying device

Abstract

The present invention discloses a circulation drying device, comprising a shell with an inner cavity, a conveying mechanism, a heating box, a first fan and a second fan; the inner cavity comprises a first cavity and a second cavity, the first cavity comprises a first air outlet cavity and a first air suction cavity, a first air outlet box is arranged in the first air outlet cavity, the suction end and the output end of the first fan are respectively connected with the first air suction cavity and the first air outlet box; the second cavity comprises a second air suction cavity and a second air outlet cavity, a second air outlet box is arranged in the second air outlet cavity, the suction end and the output end of the second fan are respectively connected with the second air suction cavity and the heating box, and the heating box is connected with the second air outlet box. In the circulation drying device of the present invention, the cooperation of the second fan and the heating box can realize the purpose of air circulation heating and drying the profile, saving energy consumption; the second fan can realize the circulation of hot air in the second cavity, ensuring the drying effect on the profile.

Description

Technical Field

[0001] The invention relates to a circulating drying device. Background Art

[0002] Profiles are objects with a certain geometric shape made of iron or steel and materials with a certain strength and toughness (such as plastic, aluminum, fiberglass, etc.) through rolling, extrusion, casting and other processes.

[0003] During the production process of profiles (such as multi-porous aluminum alloy flat tubes), they need to be water-cooled and dried. Existing drying devices usually directly draw air from the outside, heat it, and then blow it toward the profile to achieve the purpose of profile drying. However, directly drawing air from the outside and heating it consumes a lot of energy. At the same time, the hot air introduced cannot be effectively circulated, resulting in heat exchange dead corners, which affects the drying effect of the profile. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a circulating drying device.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A circulating drying device comprises a shell having an inner cavity, a conveying mechanism for conveying a profile through the inner cavity, a heating box connected to the shell for outputting hot air, and a first fan and a second fan for circulating the hot air;

[0007] The inner cavity comprises a first cavity and a second cavity respectively located on both sides of the profile conveying direction, the first cavity comprises a first air outlet cavity and a first air suction cavity sequentially arranged along the profile conveying direction, a first air outlet box is arranged in the first air outlet cavity, and the suction end and the output end of the first fan are respectively connected to the first air suction cavity and the first air outlet box;

[0008] The second cavity includes a second suction cavity and a second outlet cavity arranged in sequence along the conveying direction of the profile, and a second outlet box is provided in the second outlet cavity. The suction end and the output end of the second fan are respectively connected to the second suction cavity and the heating box, and the heating box is connected to the second outlet box.

[0009] Preferably, the first air outlet box and the second air outlet box are respectively provided with a plurality of air outlet holes on one side facing the profile, and the plurality of air outlet holes are arranged in a rectangular array.

[0010] Further preferably, the air outlet holes are long holes and extend along a direction perpendicular to the conveying direction of the profile.

[0011] Preferably, the circulating drying device also includes an air suction port opened on the wall of the second air suction chamber and connected to the suction end of the second fan, a mesh plate covering the air suction port, and a plurality of air holes arranged in a rectangular array on the mesh plate.

[0012] Preferably, the circulating drying device further comprises two air supply pipes respectively connected between the output end of the first fan and the first air outlet box, and between the output end of the second fan and the heating box.

[0013] Preferably, the circulating drying device also includes an isolation platform arranged in the second cavity and located on the side of the second suction cavity away from the second air outlet box, and a baffle arranged on the side of the isolation platform close to the second suction cavity, and the baffle is arranged to be inclined upward in the direction close to the second suction cavity.

[0014] Preferably, the conveying mechanism includes two conveying roller assemblies respectively located at the two ends of the profile conveying direction, each of the conveying roller assemblies includes a first roller shaft rotatable around its own axial direction and arranged on the frame, and a plurality of first rollers arranged at intervals on the first roller shaft, the rotation axis of the first roller shaft extends in the horizontal direction and is perpendicular to the conveying direction of the profile, there are multiple profiles and the two ends of each of the profiles are respectively placed on the corresponding first rollers.

[0015] Further preferably, the conveying mechanism also includes two limiting assemblies respectively located on the side of the conveying roller assembly away from the shell, each of the limiting assemblies respectively includes a plurality of limiting roller groups arranged at intervals on the frame, the arrangement direction of the plurality of limiting roller groups is parallel to the extension direction of the first roller shaft, each of the limiting roller groups respectively includes two limiting rollers arranged side by side, a limiting area is formed between the two limiting rollers, and the end of the profile is inserted into the limiting area.

[0016] Further preferably, each of the limiting rollers comprises a second roller shaft disposed on the frame and rotatable around its own axial centerline, and a second roller wheel mounted on the second roller shaft, the rotation axis of the second roller shaft extends in the vertical direction, and the limiting area is formed between the two second roller wheels constituting the limiting roller group.

[0017] Preferably, the shell includes an upper shell having the first cavity and a lower shell having the second cavity, and the upper shell and the lower shell are hinged to each other. The circulating drying device also includes a power cylinder assembly for driving the upper shell and the lower shell to open or close relative to each other.

[0018] Due to the application of the above technical scheme, the present invention has the following advantages compared with the prior art: the circulating drying device of the present invention, through the cooperation of the second fan and the heating box, can achieve the purpose of circulating air in the first cavity for heating and outputting dry profiles, which greatly saves energy consumption; at the same time, through the setting of the second fan, the hot air can be circulated in the second cavity, eliminating the heat exchange dead corner and ensuring the drying effect of the profile. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Attached Figure 1 It is a structural schematic diagram of a circulating drying device in a specific embodiment of the present invention;

[0020] Attached Figure 2 For attachment Figure 1 Schematic diagram of the middle AA section;

[0021] Attached Figure 3 For attachment Figure 1 Schematic diagram of the middle BB section;

[0022] Attached Figure 4 For attachment Figure 3 Schematic diagram of the CC section;

[0023] Attached Figure 5 For attachment Figure 1 Schematic diagram of the middle DD section.

[0024] In the figure: 1, inner cavity; 1a, first cavity; 1a1, first air outlet cavity; 1a2, first air suction cavity; 1b, second cavity; 1b1, second air suction cavity; 1b2, second air outlet cavity; 2, shell; 2a, upper shell; 2b, lower shell; 3, heating box; 4, first fan; 5, second fan; 6, first air outlet box; 7, second air outlet box; 8, air outlet; 9, air suction port; 10, mesh plate; 11, air hole; 12. Air delivery pipe; 13. Isolation table; 14. Baffle; 15. Conveying roller assembly; 15a. First roller shaft; 15b. First roller wheel; 16. Limiting assembly; 16a. Limiting roller; 16a1. Second roller shaft; 16a2. Second roller wheel; 16b. Limiting area; 17. Power cylinder assembly; 17a. Cylinder body; 17b. Piston rod; 18. Mounting plate; 19. Support frame; 20. Air pump; 21. Electric heating tube;

[0025] 30. Aluminum alloy flat tube. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0027] The present invention relates to an improvement on a circulating drying device for profiles, specifically a circulating drying device for aluminum alloy flat tubes. Through the cooperation of a second fan 5 and a heating box 3, the purpose of circulating air in a first cavity 1a for heating and outputting the dried aluminum alloy flat tubes can be achieved, which greatly saves energy consumption. At the same time, through the setting of the second fan 5, the hot air can be circulated in the second cavity 1b, eliminating the heat exchange dead corner and ensuring the drying effect of the aluminum alloy flat tubes.

[0028] See also Figure 1-5 As shown, a circulating drying device is shown, which includes a shell 2 with an inner cavity 1, a conveying mechanism for conveying an aluminum alloy flat tube 30 through the inner cavity 1, a heating box 3 connected to the shell 2 for outputting hot air, a first fan 4 and a second fan 5 for circulating hot air; an electric heating tube 21 is arranged in the heating box 3.

[0029] The inner cavity 1 includes a first cavity 1a and a second cavity 1b respectively located on both sides of the conveying direction of the aluminum alloy flat tube 30. The first cavity 1a includes a first air outlet cavity 1a1 and a first air suction cavity 1a2 sequentially arranged along the conveying direction of the aluminum alloy flat tube 30. A first air outlet box 6 is provided in the first air outlet cavity 1a1. The suction end and the output end of the first fan 4 are respectively connected to the first air suction cavity 1a2 and the first air outlet box 6.

[0030] The second cavity 1b includes a second air suction cavity 1b1 and a second air outlet cavity 1b2 arranged in sequence along the conveying direction of the aluminum alloy flat tube 30. A second air outlet box 7 is provided in the second air outlet cavity 1b2. The suction end and the output end of the second fan 5 are respectively connected to the second air suction cavity 1b1 and the heating box 3. The heating box 3 is connected to the second air outlet box 7.

[0031] In this way, when the aluminum alloy flat tube 30 passes through the inner cavity 12 under the action of the conveying mechanism, the second fan 5 draws cold air from the second suction chamber 1b1 to the heating box 3 for heating and then outputs it from the second outlet chamber 1b2, thereby drying the aluminum alloy flat tube 30. In this example, the heating box 3 is arranged below the first suction chamber 1a2, and the two are blocked by the box plate of the heating box 3, in order to prevent the heating tube in the heating box 3 from directly baking the aluminum alloy flat tube 30. However, after the blockage, the first suction chamber 1a2 above the heating box 3 will have a heat exchange dead corner, and the hot air cannot flow to the top of the heating box 3. At this time, the first fan 4 is started, and the hot air in the second outlet chamber 1b2 is drawn to the first suction chamber 1a2, and then outputted from the first outlet chamber 1a1, thereby realizing hot air circulation and eliminating the heat exchange dead corner.

[0032] In this embodiment, the first air outlet box 6 and the second air outlet box 7 are respectively provided with a plurality of air outlet holes 8 on one side of the aluminum alloy flat tube 30, and the plurality of air outlet holes 8 are arranged in a rectangular array. The air outlet holes 8 are long holes and extend along a direction perpendicular to the conveying direction of the aluminum alloy flat tube 30. The provision of the long holes can ensure that the aluminum alloy flat tube 30 is dried uniformly in its width direction.

[0033] The circulating drying device also includes a suction port 9 opened on the wall of the second suction chamber 1b1 and communicating with the suction end of the second fan 5, a mesh plate 10 covering the suction port 9, and a plurality of air holes 11 arranged in a rectangular array on the mesh plate 10. Here, since the second suction chamber 1b1 is located at the front end of the conveying direction of the aluminum alloy flat tube 30, there will be impurities on the aluminum alloy flat tube 30 at this time, and the arrangement of the mesh plate 10 can ensure that the second fan 5 filters out the impurities when sucking air from the second suction chamber 1b1.

[0034] In this example, the above-mentioned suction port 9 is also provided on the cavity wall of the first suction cavity 1a2.

[0035] In this embodiment, the circulating drying device further includes two air delivery pipes 12 respectively connected between the output end of the first fan 4 and the first air outlet box 6 , and between the output end of the second fan 5 and the heating box 3 .

[0036] As a preferred solution, the circulating drying device also includes an isolation platform 13 disposed in the second cavity 1b and located on the side of the second air suction cavity 1b1 away from the second air outlet box 7, and a baffle 14 disposed on the side of the isolation platform 13 close to the second air suction cavity 1b1, and the baffle 14 is disposed to be inclined upward in the direction close to the second air suction cavity 1b1. The isolation platform 13 is disposed to isolate the second air suction cavity 1b1 from the edge of the shell 2 to prevent the second fan 5 from sucking in cold air outside the shell 2 when it is in operation; and the baffle 14 is disposed to further ensure that the wind sucked by the second fan 5 is the wind circulating in the inner cavity 1, preventing the wind outside the shell 2 from being sucked in.

[0037] In this embodiment, the conveying mechanism includes two conveying roller assemblies 15 respectively located at both ends of the conveying direction of the aluminum alloy flat tube 30, each conveying roller assembly 15 respectively includes a first roller shaft 15a rotatable around its own axis and arranged on the frame, and a plurality of first rollers 15b arranged at intervals on the first roller shaft 15a, the rotation axis of the first roller shaft 15a extends along the horizontal direction and is perpendicular to the conveying direction of the aluminum alloy flat tube 30, and the aluminum alloy flat tube 30 has a plurality of and the two ends of each aluminum alloy flat tube 30 are respectively mounted on the corresponding first roller 15b. Here, the two first roller shafts 15a are both driven rollers, and during conveying, the two ends of the aluminum alloy flat tube 30 are mounted on the corresponding first roller 15b, and move forward driven by the driving assemblies of the previous and next processes.

[0038] The conveying mechanism also includes two limiting assemblies 16 respectively located on the side of the conveying roller assembly 15 away from the shell 2, each limiting assembly 16 respectively includes a plurality of limiting roller 16a groups arranged at intervals on the frame, the arrangement direction of the plurality of limiting roller 16a groups is parallel to the extension direction of the first roller shaft 15a, each limiting roller 16a group respectively includes two limiting rollers 16a arranged side by side, and a limiting area 16b is formed between the two limiting rollers 16a, and the end of the aluminum alloy flat tube 30 is inserted into the limiting area 16b.

[0039] Each limiting roller 16a includes a second roller shaft 16a1 rotatable around its own axis and arranged on the frame, and a second roller 16a2 sleeved on the second roller shaft 16a1. The rotation axis of the second roller shaft 16a1 extends along the vertical direction. The limiting area 16b is formed between the two second rollers 16a2 that constitute the limiting roller 16a group. In this way, during the forward transmission of the aluminum alloy flat tube 30, the two second rollers 16a2 respectively contact the two sides of the aluminum alloy flat tube 30 in the width direction, thereby realizing the limiting guidance of the aluminum alloy flat tube 30.

[0040] In this example, mounting plates 18 are disposed at both ends of the housing 2 , and the conveying mechanism is disposed on the mounting plates 18 , wherein the first roller 15 a is rotatably disposed on a supporting frame 19 .

[0041] In this embodiment, the housing 2 includes an upper housing 2a having a first cavity 1a, and a lower housing 2b having a second cavity 1b. The upper housing 2a and the lower housing 2b are hinged to each other. The circulating drying device also includes a power cylinder assembly 17 for driving the upper housing 2a and the lower housing 2b to open or close relative to each other. The power cylinder assembly 17 includes a cylinder body 17a hinged to the upper housing 2a, and a retractable piston rod 17b arranged in the cylinder body 17a, and the end of the piston rod 17b is hinged to the lower housing 2b. The power cylinder here is an air cylinder, and the air pump 20 is used to realize the filling and deflation of the air cylinder to realize the relative opening and closing of the upper housing 2a and the lower housing 2b.

[0042] The working process of this embodiment is described in detail below: the aluminum alloy flat tube 30 passes through the inner cavity 1 under the action of the conveying mechanism, the second fan 5 sucks the air in the second suction chamber 1b1 into the heating box 3 and outputs it from the second outlet chamber 1b2, so as to dry the aluminum alloy flat tube 30; the first fan 4 sucks the hot air in the second outlet chamber 1b2 to the heat exchange dead corner above the heating box 3, dries the aluminum alloy flat tube 30 there, and then sucks it from the first suction chamber 1a2 and outputs it from the first outlet chamber 1a1, so as to realize hot air circulation.

[0043] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A circulating drying device, characterized in that: It comprises a shell having an inner cavity, a conveying mechanism for conveying the profile through the inner cavity, a heating box connected to the shell for outputting hot air, and a first fan and a second fan for circulating the hot air; The inner cavity comprises a first cavity and a second cavity respectively located on both sides of the conveying direction of the profile, the first cavity comprises a first air outlet cavity and a first air suction cavity sequentially arranged along the conveying direction of the profile, a first air outlet box is arranged in the first air outlet cavity, and the suction end and the output end of the first fan are respectively connected to the first air suction cavity and the first air outlet box; The second cavity comprises a second air suction cavity and a second air outlet cavity sequentially arranged along the conveying direction of the profile, a second air outlet box is arranged in the second air outlet cavity, the suction end and the output end of the second fan are respectively connected to the second air suction cavity and the heating box, and the heating box is connected to the second air outlet box; The circulating drying device also includes two air delivery pipes respectively connected between the output end of the first fan and the first air outlet box, and between the output end of the second fan and the heating box; The circulating drying device also includes an isolation platform arranged in the second cavity and located on the side of the second suction cavity away from the second air outlet box, and a baffle arranged on the side of the isolation platform close to the second suction cavity, and the baffle is arranged to be inclined upward along the direction close to the second suction cavity.

2. A circulating drying device according to claim 1, characterized in that: The first air outlet box and the second air outlet box are respectively provided with a plurality of air outlet holes on one side facing the profile, and the plurality of air outlet holes are arranged in a rectangular array.

3. A circulating drying device according to claim 2, characterized in that: The air outlet is a long hole and extends along a direction perpendicular to the conveying direction of the profile.

4. A circulating drying device according to claim 1, characterized in that: The circulating drying device also includes an air suction port opened on the cavity wall of the second air suction cavity and connected to the suction end of the second fan, a mesh plate covering the air suction port, and a plurality of air holes arranged in a rectangular array on the mesh plate.

5. A circulating drying device according to claim 1, characterized in that: The conveying mechanism includes two conveying roller assemblies respectively located at the two ends of the profile conveying direction, each of the conveying roller assemblies includes a first roller shaft rotatable around its own axial centerline and arranged on a frame, and a plurality of first roller wheels arranged at intervals on the first roller shaft, the rotation axis of the first roller shaft extends in a horizontal direction and is perpendicular to the conveying direction of the profile, there are multiple profiles and the two ends of each of the profiles are respectively placed on the corresponding first roller wheels.

6. A circulating drying device according to claim 5, characterized in that: The conveying mechanism also includes two limiting assemblies respectively located on the side of the conveying roller assembly away from the shell, each of the limiting assemblies respectively includes a plurality of limiting roller groups arranged at intervals on the frame, the arrangement direction of the plurality of limiting roller groups is parallel to the extension direction of the first roller shaft, each of the limiting roller groups respectively includes two limiting rollers arranged side by side, a limiting area is formed between the two limiting rollers, and the end of the profile is inserted into the limiting area.

7. A circulating drying device according to claim 6, characterized in that: Each of the limiting rollers comprises a second roller shaft disposed on the frame and rotatable around its own axial centerline, and a second roller wheel mounted on the second roller shaft, wherein the rotation axis of the second roller shaft extends in the vertical direction, and the limiting area is formed between the two second roller wheels constituting the limiting roller group.

8. A circulating drying device according to claim 1, characterized in that: The shell includes an upper shell having the first cavity and a lower shell having the second cavity, and the upper shell and the lower shell are hinged to each other. The circulating drying device also includes a power cylinder assembly for driving the upper shell and the lower shell to open or close relative to each other.

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