Aluminum coil annealing furnace capable of uniformly heating

Abstract

The utility model relates to the technical field of aluminum coil processing, in particular to a uniform heating aluminum coil annealing furnace which comprises a furnace body and two connecting pipes, the right side of the furnace body is fixedly connected with an air pump, the input end of the air pump is fixedly connected to the bottom end of the upper connecting pipe, and the output end of the air pump is fixedly connected to the top end of the lower connecting pipe. Mounting boxes are fixedly connected to the two sides of the upper side of the furnace body, filter screens are slidably connected to the interiors of the mounting boxes, waterproof breathable nets are fixedly connected to the inner walls of the filter screens, and box covers are hinged to the left sides of the waterproof breathable nets; the device has the beneficial effects that hot air is doubly filtered through the filter screen and the waterproof breathable screen, so that air entering the machine body is dry and tidy, generation of an oxidation layer on the surface of an aluminum coil is greatly reduced, and then when a coating or printing procedure needs to be conducted subsequently, the labor intensity of workers is greatly reduced, and the production efficiency is improved. And thus, the treatment efficiency of the subsequent process is relatively high.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum coil processing, in particular to an aluminum coil annealing furnace with uniform heating. Background Art

[0002] After the aluminum coil is produced, it needs to be annealed in an aluminum coil annealing furnace to improve the physical properties of the aluminum coil so that it can better carry out subsequent transportation, processing and other steps.

[0003] When in use, the aluminum coil annealing furnace in the prior art heats the aluminum coil by means of internal and external synchronous heating. By starting the internal heating component and directing the hot air onto the aluminum coil, the aluminum coil can be heated evenly, thereby effectively improving the annealing effect of the aluminum coil.

[0004] However, in actual use, there will be water vapor in the hot air after heating. When the water vapor contacts the surface of the aluminum coil, an oxide layer will be formed on the surface of the aluminum coil. Although the oxide layer protects the surface of the aluminum coil, since the aluminum coil needs to be coated or printed after annealing, the oxide layer needs to be removed at this time, which will increase the labor intensity of the workers and reduce the efficiency of subsequent coating or printing. Utility Model Content

[0005] The utility model aims to provide an aluminum coil annealing furnace with uniform heating to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a uniformly heated aluminum coil annealing furnace, comprising a furnace body and two connecting pipes, an air pump is fixedly connected to the right side of the furnace body, the input end of the air pump is fixedly connected to the bottom end of the upper connecting pipe, and the output end of the air pump is fixedly connected to the top end of the lower connecting pipe, and installation boxes are fixedly connected to both sides of the upper side of the furnace body, a filter screen is slidably connected to the inside of the installation box, a waterproof and breathable net is fixedly connected to the inner wall of the filter screen, and a box cover is hinged on the left side of the waterproof and breathable net.

[0007] Preferably, the aperture of the upper side of the filter is larger than the aperture of the lower side, and grooves are provided on the upper and lower sides of the waterproof breathable net and inside the filter.

[0008] Preferably, two card slots are provided on the left side of the installation box, two card blocks are fixedly connected to the right end of the box cover, a plurality of rubber rings are fixedly connected to the outer side of the card blocks, and an arc protrusion is fixedly connected to the right end of the card block.

[0009] Preferably, a plurality of support columns are fixedly connected to the lower side of the inner wall of the furnace body, a mounting plate is fixedly connected to the inner wall of the furnace body, a placement plate is slidably connected to the top of the mounting plate, a plurality of slots are opened inside the top of the mounting plate, and pins are inserted into the slots.

[0010] Preferably, one end of the connecting pipe away from the air pump is fixedly connected to the installation box, and the right side of the box cover fits with the left side of the filter.

[0011] Preferably, the card blocks at the front and rear sides are symmetrically designed, the card blocks match the card slots, and the card blocks are engaged with the inside of the card slots.

[0012] Preferably, the outside of the rubber ring fits into the inside of the card slot.

[0013] Preferably, the placement plate is of "C" shape design, the bottom end of the placement plate fits with the left and right sides of the inner bottom wall of the mounting plate, and the through hole of the bottom wall of the furnace body is connected with the lower middle part of the mounting plate.

[0014] Preferably, the latch is inserted into the top of the placement plate, and there is a gap between the inner wall of the slot and the outside of the latch.

[0015] Compared with the prior art, the beneficial effect of the uniformly heated aluminum coil annealing furnace proposed by the utility model is that the hot air is double-filtered by using a filter screen and a waterproof breathable net, so that the gas entering the body is relatively dry and clean, thereby greatly reducing the formation of an oxide layer on the surface of the aluminum coil, and then when subsequent coating or printing processes are required, the labor intensity of the workers is greatly reduced, thereby making the processing efficiency of subsequent processes higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the installation box of the utility model;

[0018] Figure 3 For this utility model Figure 2 Structural cross-section at AA in the middle;

[0019] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This is a schematic diagram of the furnace structure of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the placement plate of the utility model;

[0022] Figure 7For this utility model Figure 6 Structural cross-section at the middle BB;

[0023] Figure 8 For this utility model Figure 7 Enlarged view of point B in the middle.

[0024] In the figure: 1. furnace body; 2. installation box; 3. filter screen; 4. waterproof breathable net; 5. box cover; 6. clamp block;

[0025] 7. Rubber ring; 8. Arc bump; 9. Slot; 10. Connecting pipe; 11. Air pump; 12. Mounting plate;

[0026] 13. Support column; 14. Placement plate; 15. Slot; 16. Latch. DETAILED DESCRIPTION

[0027] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1

[0029] See also Figure 1-Figure 8 The utility model provides a technical solution: a uniformly heated aluminum coil annealing furnace, comprising a furnace body 1 and two connecting pipes 10, an air pump 11 is fixedly connected to the right side of the furnace body 1, the furnace body 1 supports and fixes the air pump 11, so that the air pump 11 can operate smoothly, the input end of the air pump 11 is fixedly connected to the bottom end of the upper connecting pipe 10, the end of the connecting pipe 10 away from the air pump 11 is fixedly connected to the installation box 2, the output end of the air pump 11 is fixedly connected to the top end of the lower connecting pipe 10, and both sides of the upper side of the furnace body 1 are fixed An installation box 2 is connected so that the air pump 11 can extract the air inside the furnace body 1 through the installation box 2. A filter screen 3 is slidably connected to the inside of the installation box 2, and the filter screen 3 can filter some impurities in the hot air. A waterproof and breathable net 4 is fixedly connected to the inner wall of the filter screen 3, and the waterproof and breathable net 4 can filter moisture in the hot air. A box cover 5 is hinged on the left side of the waterproof and breathable net 4, and the right side of the box cover 5 is fitted with the left side of the filter screen 3. By closing the box cover 5, the filter screen 3 can be stably installed inside the installation box 2.

[0030] When the aluminum coil is heated, the air pump 11 is started to operate so that the air pump 11 draws the hot air inside the furnace body 1 into the installation box 2 through the upper connecting pipe 10, so that the air can pass through the filter 3 and the waterproof breathable net 4, thereby making the air entering the installation box 2 relatively dry and clean, thereby reducing the generation of an oxide layer on the surface of the aluminum coil.

[0031] Embodiment 2

[0032] On the basis of Example 1, in order to further reduce the generation of oxide layer on the surface of the aluminum coil, the upper aperture of the filter 3 is larger than the lower aperture, so that the air can be filtered twice, and grooves are provided on the upper and lower sides of the waterproof and breathable net 4 and the inside of the filter 3, so that impurities in the air can be collected by the filter 3.

[0033] The air can be filtered twice when passing through the filter screen 3 and the waterproof breathable net 4 on the lower side, so that the air entering the furnace body 1 is drier and cleaner, so that the oxide layer on the surface of the aluminum coil can be further reduced, and the surface of the aluminum coil is cleaner and tidier after annealing, thereby reducing the workload of workers for cleaning the surface of the aluminum coil, reducing the labor intensity of workers, and further improving the efficiency of subsequent coating or printing, so that the economic efficiency of the annealing furnace is improved.

[0034] Embodiment 3

[0035] On the basis of the second embodiment, in order to realize the replacement of the filter screen 3 and the waterproof breathable net 4, two card slots 9 are provided on the left side of the installation box 2, and two card blocks 6 are fixedly connected to the right end of the box cover 5. The card blocks 6 on the front and rear sides are symmetrically designed, so that the force on the box cover 5 is relatively uniform, and the filter screen 3 is installed relatively stably. The card blocks 6 match the card slots 9, and the card blocks 6 are engaged with the inside of the card slots 9, so that the installation of the filter screen 3 inside the installation box 2 is relatively stable. A plurality of rubber rings 7 are fixedly connected to the outside of the card blocks 6, and the outside of the rubber rings 7 fits with the inside of the card slots 9, so that the friction coefficient between the card blocks 6 and the card slots 9 is increased, so that the box cover 5 will not be easily separated from the installation box 2, and the right end of the card block 6 is fixedly connected to an arc protrusion 8. Since the arc protrusion 8 is an arc design, the angle difference of the box cover 5 when rotating will not affect the entry of the card block 6 into the interior of the installation box 2.

[0036] When the filter 3 needs to be replaced, the box cover 5 is pulled to the left, so that the rubber ring 7 is deformed after being subjected to force, and the rubber ring 7 can follow the block 6 to detach from the inside of the slot 9. At this time, the filter 3 can be pulled to the left, so that the filter 3 can be removed from the inside of the installation box 2. Conversely, the rubber ring 7 performs a reset movement inside the slot 9, so that the friction coefficient between the block 6 and the slot 9 can be increased, so that the box cover 5 can fit closely with the installation box 2, and the filter 3 can be installed more stably.

[0037] Embodiment 4

[0038] On the basis of the third embodiment, in order to achieve simultaneous internal and external heating of aluminum coils of different sizes, a plurality of support columns 13 are fixedly connected to the lower side of the inner wall of the furnace body 1, and a mounting plate 12 is fixedly connected to the inner wall of the furnace body 1. The support columns 13 support the mounting plate 12 so that the mounting plate 12 will not be deformed due to the weight of the aluminum coil. The through hole of the inner bottom wall of the furnace body 1 is connected to the lower middle part of the mounting plate 12, so that the hot air can be changed in direction by the mounting plate 12. A placement plate 14 is slidably connected to the top of the mounting plate 12, and a through hole is provided inside the top of the placement plate 14. By connecting the inner middle part of the aluminum coil with the through hole of the placement plate 14, the aluminum coil can be heated simultaneously inside and outside. The placement plate 14 is designed in a "C" shape, so that the air entering the mounting plate 12 can enter The hot air is inserted into the "C"-shaped interior of the placement plate 14, so that the wind direction of the hot air is changed. The bottom end of the placement plate 14 fits with the left and right sides of the inner bottom wall of the mounting plate 12, so that the gap between the placement plate 14 and the mounting plate 12 is smaller, so that the hot air can enter the center position of the aluminum coil through the through hole opened in the mounting plate 12. A plurality of slots 15 are opened inside the top of the mounting plate 12, and a latch 16 is inserted inside the slot 15. The slot 15 limits the latch 16, so that the latch 16 is inserted more stably. The latch 16 is inserted into the top of the placement plate 14, so that the position of the placement plate 14 can be fixed. There is a gap between the inner side wall of the slot 15 and the outside of the latch 16, so that when the placement plate 14 is replaced, the worker can easily pull the latch 16 out of the slot 15.

[0039] When the placement plate 14 needs to be replaced, the pin 16 is pulled out from the slot 15 so that the pin 16 can be disengaged from the placement plate 14. At this time, the placement plate 14 is pulled forward so that the placement plate 14 can be easily disassembled. At this time, the placement plate 14 of the required model is slid into the interior of the mounting plate 12, and then the pin 16 is inserted into the interior of the placement plate 14 through the slot 15, so that the placement plate 14 can be easily installed. At this time, after the hot air enters the interior of the furnace body 1 through the mounting box 2, it will first enter between the mounting plate 12 and the placement plate 14, and then enter the middle of the aluminum coil through the through hole opened in the placement plate 14, so that aluminum coils of different sizes can be heated internally and externally at the same time, so that the aluminum coil can be heated evenly, and the annealing quality of the aluminum coil will not be affected.

[0040] In actual use, by starting the air pump 11, the hot air can enter the interior of the upper installation box 2, and then the hot air can enter the interior of the filter 3, so that some impurities in the air are filtered, and then the hot air can enter the interior of the waterproof breathable net 4, so that the moisture in the hot air is filtered, so that the dry and clean hot air can enter the interior of the lower installation box 2 through the connecting pipe 10, and is filtered twice by the filter 3 and the waterproof breathable net 4 inside the installation box 2, and then enters the interior of the furnace body 1, so that the hot air entering the furnace body 1 is relatively dry and clean, thereby greatly reducing the generation of an oxide layer on the surface of the aluminum coil, so that when a coating or printing process is required later, the labor intensity of the workers is greatly reduced, and the processing efficiency of the subsequent process is higher.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A uniformly heated aluminum coil annealing furnace, comprising a furnace body (1) and two connecting pipes (10), wherein an air pump (11) is fixedly connected to the right side of the furnace body (1), an input end of the air pump (11) is fixedly connected to the bottom end of the upper connecting pipe (10), and an output end of the air pump (11) is fixedly connected to the top end of the lower connecting pipe (10), characterized in that: Both sides of the upper side of the furnace body (1) are fixedly connected to a mounting box (2), a filter screen (3) is slidably connected inside the mounting box (2), a waterproof and breathable net (4) is fixedly connected to the inner wall of the filter screen (3), and a box cover (5) is hinged on the left side of the waterproof and breathable net (4).

2. The uniformly heated aluminum coil annealing furnace according to claim 1, characterized in that: The aperture of the upper side of the filter screen (3) is larger than the aperture of the lower side, and grooves are provided on the upper and lower sides of the waterproof breathable net (4) and inside the filter screen (3).

3. The uniformly heated aluminum coil annealing furnace according to claim 2, characterized in that: The left side of the installation box (2) is provided with two card slots (9), the right end of the box cover (5) is fixedly connected to two card blocks (6), the outer sides of the card blocks (6) are fixedly connected to a plurality of rubber rings (7), and the right end of the card blocks (6) is fixedly connected to an arc convex block (8).

4. The uniformly heated aluminum coil annealing furnace according to claim 1, characterized in that: A plurality of support columns (13) are fixedly connected to the lower side of the inner wall of the furnace body (1), a mounting plate (12) is fixedly connected to the inner wall of the furnace body (1), a placement plate (14) is slidably connected to the top of the mounting plate (12), a plurality of slots (15) are provided inside the top of the mounting plate (12), and latches (16) are inserted into the slots (15).

5. The uniformly heated aluminum coil annealing furnace according to claim 1, characterized in that: One end of the connecting pipe (10) away from the air pump (11) is fixedly connected to the installation box (2), and the right side of the box cover (5) is in contact with the left side of the filter screen (3).

6. The uniformly heated aluminum coil annealing furnace according to claim 3, characterized in that: The card blocks (6) on the front and rear sides are symmetrically designed, the card blocks (6) match the card slots (9), and the card blocks (6) are engaged with the inside of the card slots (9).

7. The uniformly heated aluminum coil annealing furnace according to claim 3, characterized in that: The outside of the rubber ring (7) fits the inside of the card slot (9).

8. The uniformly heated aluminum coil annealing furnace according to claim 4, characterized in that: The placement plate (14) is of "C"-shaped design, the bottom end of the placement plate (14) fits with the left and right sides of the inner bottom wall of the mounting plate (12), and the through hole of the inner bottom wall of the furnace body (1) is connected to the middle part of the lower side of the mounting plate (12).

9. The uniformly heated aluminum coil annealing furnace according to claim 4, characterized in that: The latch (16) is inserted into the top of the placement plate (14), and a gap is formed between the inner wall of the slot (15) and the outside of the latch (16).

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