CN212833925U

CN212833925U - Aluminum coil annealing furnace

Info

Publication number: CN212833925U
Application number: CN202020848083.0U
Authority: CN
Inventors: 孙国君
Original assignee: Nantong Hengjin Composite Material Co ltd
Current assignee: Nantong Hengjin Composite Material Co ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-03-30
Anticipated expiration: 2030-05-19

Abstract

The utility model provides an aluminum coil annealing furnace, which relates to the technical field of aluminum product production and processing equipment and comprises a furnace body, wherein a furnace chamber and a heating device are arranged in the furnace body, and a feed inlet and a stop gate are arranged on one side of the furnace body; a feeding track is arranged in the hearth along the feeding direction, and heating frames which are arranged along the length direction of the feeding track and are slidably arranged in the hearth along the direction vertical to the length direction of the feeding track are respectively arranged at two sides of the feeding track; heating rollers arranged along the sliding direction of the two groups of heating frames are respectively arranged on the sides, close to each other, of the two groups of heating frames, and a plurality of heating rollers are arranged in an array along the length direction of the heating frames; the feeding track and the two groups of heating frames are respectively provided with a row of stand columns, the two rows of stand columns are provided with a supporting table, the supporting table is provided with a plurality of supporting frames along the upper edge, the supporting frames are provided with aluminum coils, and the central holes of the aluminum coils are coaxially corresponding to the heating rollers on the two sides of the central holes. The utility model discloses during the use, can roll up the concurrent heating to a plurality of aluminium, guarantee that the aluminium book is heated evenly, improve annealing effect and annealing efficiency, effectively reduce artifical intensity of labour.

Description

Aluminum coil annealing furnace

Technical Field

The utility model relates to an aluminum product production processing equipment technical field especially relates to an aluminium coil annealing stove.

Background

Aluminum and aluminum alloys are the most widely used non-ferrous structural materials in industry, and have been widely used in aviation, aerospace, automotive, machinery manufacturing, marine and chemical industries, and daily necessities. The aluminum and aluminum alloy products are widely applied to the packaging industry, the transportation industry and the construction industry. In the production and processing process of aluminum materials, an electric furnace is mostly adopted as an annealing furnace for annealing aluminum coils, the structure of the existing aluminum coil annealing furnace comprises a furnace body, and then the aluminum coils are hung by a transport vehicle and then placed in the furnace body of the annealing furnace. However, since the external heat in the annealing furnace is gradually heated from the outer surface of the aluminum coil to the inside, and finally the aluminum coil is integrally heated, the heating efficiency of the annealing furnace is low, the heat energy loss is large, and the annealing effect of the aluminum coil is influenced.

In order to solve the above problems, chinese patent No. CN209619402U discloses an annealing furnace for uniformly heating aluminum coils, wherein two supporting seats are disposed on a supporting platform in a furnace body, a through hole is disposed on a side wall of a furnace chamber between the two supporting seats, a heating roller is disposed in the through hole, an internal cavity of the heating roller is a heat-conducting medium cavity, a heat-conducting medium is filled in the heat-conducting medium cavity, and a heating rod is disposed in the heat-conducting medium cavity of the heating roller. During the use, place the aluminium book between two supporting seats, then the warming mill stretches into the centre bore of rolling up to the aluminium, when rolling up the annealing to the aluminium, furnace's heat is rolled up outward appearance to the aluminium and is heated inwards gradually, and the heat of warming mill can begin to heat outwards gradually from the centre bore department that the aluminium rolled up, consequently can carry out even heating to the aluminium book, makes the whole heat that is heated of aluminium book.

However, in the practical use process of the annealing furnace, because the heating roller is right opposite to the feeding port, the aluminum coil is placed on the supporting seat by personnel affected to a certain degree, and the heating roller penetrates through the aluminum coil, so that the number of the aluminum coils capable of annealing at one time is small, otherwise, the aluminum coils need to be carried for many times, and the labor intensity of workers is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an aluminium book annealing stove, it can be annealed simultaneously to more aluminium book, and is heated evenly when guaranteeing that the aluminium book is annealed, improves annealing effect and annealing efficiency to effectively reduce artifical intensity of labour.

The above technical purpose of the present invention can be achieved by the following technical solutions:

an aluminum coil annealing furnace comprises a furnace body, wherein a hearth and a heating device are arranged in the furnace body, a feed inlet communicated with the hearth is formed in one side of the furnace body, and a stop door is vertically and slidably mounted at the feed inlet; a feeding track arranged along the feeding direction is arranged in the hearth, heating frames arranged along the length direction of the feeding track are respectively arranged on two sides of the feeding track, the two groups of heating frames are symmetrically arranged relative to the feeding track, and the two groups of heating frames are horizontally and relatively slidably arranged in the hearth along the direction vertical to the length direction of the feeding track; heating rollers arranged along the sliding direction of the two groups of heating frames are respectively arranged on the sides, close to each other, of the two groups of heating frames, and a plurality of heating rollers on each group of heating frames are arrayed along the length direction of the heating frames; a row of upright columns along the length direction of the feeding track and the two groups of heating frames are respectively arranged between the feeding track and the two groups of heating frames, and the two rows of upright columns are symmetrically arranged relative to the feeding track; two rows of stand are equipped with the brace table, be equipped with a plurality of support frames along feeding track length direction array on the brace table, placed the aluminium book respectively on the support frame, a plurality of the centre bore of aluminium book is rather than the warming mill one-to-one coaxial correspondence of both sides.

By adopting the technical scheme, the aluminum coils are placed on the corresponding support frames one by one in advance, and the whole support table is moved into the hearth and transferred onto the stand column by using the transport vehicle; then relatively moving the two groups of heating frames, and inserting the heating rollers on the heating frames into the central hole from two sides of the aluminum coil; the feed inlet is closed to the shutter, and heating device heats furnace, heats annealing to the aluminium book from the aluminium book outside, and the warming mill heats the goods returned to the aluminium book from the central hole. Above-mentioned simple structure can heat simultaneously to a plurality of aluminium book, not only can guarantee that the aluminium is rolled up and is heated evenly when annealing, improves annealing effect and annealing efficiency, and the convenience is rolled up a plurality of aluminium and is placed furnace simultaneously in addition, effectively reduces artifical intensity of labour.

Furthermore, slide rails which are perpendicular to the length direction of the feeding rail and are horizontally arranged are respectively arranged on two sides of the feeding rail in the hearth, and a plurality of slide rails on each side of the feeding rail are arrayed along the length direction of the feeding rail; and each heating frame is provided with a supporting leg which is slidably arranged in the corresponding sliding rail.

Through adopting above-mentioned technical scheme, landing leg slidable mounting realizes wearing to establish the heating rack slidable mounting in furnace in the slide rail, conveniently realizes wearing to establish the aluminium central hole of rolling up with the warming mill in, and simple structure and effect are obvious. Wherein, slide rail and landing leg set up a plurality of, stability when can guaranteeing that the heating frame drives the warming mill slip.

Furthermore, the two sides outside the furnace body are respectively provided with a fixing frame which corresponds to and is parallel to each group of heating frames, each group of fixing frames is respectively provided with a plurality of cylinders which are arranged along the length direction of the heating roller, the cylinders are provided with a plurality of cylinders along the length direction of the fixing frames, and each piston rod of each cylinder penetrates through the furnace body and is fixedly connected with the heating frames.

Through adopting above-mentioned technical scheme, use cylinder drive heating frame to drive the warming mill and slide along the guide rail, simple structure and easy to operate. The cylinder is arranged outside the furnace body, only the piston rod penetrates into the hearth, the service life of the cylinder can be prolonged to a certain extent, and the cost is reduced.

Further, the sum of the lengths of the heating rollers corresponding to each other on each group of heating frames is greater than the width of the aluminum coil.

By adopting the technical scheme, when the heating roller corresponding to each group is arranged in the center hole of the aluminum coil in a penetrating manner, the aluminum coil can be heated uniformly, the heating and annealing effects on the aluminum coil are ensured, the structure is simple, and the effect is obvious.

Furthermore, the end faces of the ends, close to each other, of the heating rollers corresponding to each other on each group of heating frames are respectively provided with a protrusion and a groove which are matched with each other.

Through adopting above-mentioned technical scheme, under the cooperation of the arch that corresponds and recess on every group's the warming mill that corresponds, can peg graft smoothly when guaranteeing that every group warming mill penetrates the aluminium and roll up the centre bore, it is comparatively even to make the aluminium roll inside be heated, guarantees that the warming mill heats the annealing effect to the aluminium roll, its simple structure, and the effect is obvious.

Further, the bottom of the groove is embedded with an induction sheet, and the induction sheet is in communication connection with the cylinder.

Through adopting above-mentioned technical scheme, when the arch on a warming mill in every group warming mill touched the response piece in another warming mill upper groove, response piece feedback signal control cylinder stop work need not artifical judgement, control cylinder, and convenient saving trouble, its simple structure and effect are obvious.

Furthermore, two supporting rollers parallel to the heating roller are arranged at the top of the supporting frame, and the aluminum coil is abutted against the two supporting rollers.

Through adopting above-mentioned technical scheme, use the backing roll to support the butt aluminium and roll up, can reduce the aluminium and roll up the surface damage when placing on the support frame, guarantee the surface quality of aluminium book, reduce extravagantly reduce cost.

Further, a hydrogen tank is arranged outside the furnace body, and the hydrogen tank is connected with an air inlet pipe communicated with the hearth.

By adopting the technical scheme, in the annealing process, hydrogen in the hydrogen tank enters the hearth through the air inlet pipe, and provides reducing atmosphere for the hearth, so that the oxidation of the aluminum coil is reduced, and the quality of the aluminum coil is improved.

To sum up, the utility model discloses following beneficial effect has:

1. by arranging the feeding slide rail, the supporting table, the upright post, the sliding heating frames, the heating rollers and the like, the transport vehicle moves the whole supporting table and a plurality of aluminum coils on the supporting table into the hearth and transfers the aluminum coils to the upright post, then the two groups of heating frames move relatively, the heating rollers on the heating frames are inserted into the central holes from the two sides of the aluminum coils, so that the heating device heats the hearth during annealing, the aluminum coils are heated and annealed from the outside of the aluminum coils, and the heating rollers heat and return the aluminum coils from the central holes, thereby not only ensuring uniform heating during annealing of the aluminum coils and improving the annealing effect and the annealing efficiency, but also being convenient for placing a plurality of aluminum coils into the hearth simultaneously, and effectively reducing the labor intensity of workers;

2. through setting up the hydrogen tank with the furnace intercommunication, in annealing process, hydrogen in the hydrogen tank passes through the intake pipe and gets into the furnace, reduces the oxidation of aluminium book, improves the aluminium book quality.

Drawings

FIG. 1 is a schematic view showing the overall construction of an aluminum coil annealing furnace;

FIG. 2 is a schematic view of a partial structure of an aluminum coil annealing furnace;

FIG. 3 is a cross-sectional view of an aluminum coil annealing furnace;

fig. 4 is an enlarged view of a portion a in fig. 3.

In the figure, 1, a furnace body; 11. a hearth; 12. a feed inlet; 13. a shutter; 2. a feed rail; 3. a column; 4. a support table; 5. a support frame; 51. a support roller; 6. rolling aluminum; 61. a central bore; 7. a heating rack; 71. a support leg; 72. a slide rail; 8. a heating roller; 81. a protrusion; 82. a groove; 821. an induction sheet; 9. a fixed mount; 91. a cylinder; 10. a hydrogen tank; 101. an air inlet pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

An aluminum coil annealing furnace is shown in figure 1 and comprises a furnace body 1, a hearth 11 and a heating device are arranged in the furnace body 1, a feeding hole 12 communicated with the hearth 11 is formed in one side of the furnace body 1, and a stop door 13 is vertically and slidably mounted at the feeding hole 12. The heating device adopts natural gas for heating, the structure is the same as that of the prior art, and redundant description is not given; the structure and installation of the door 13 are the same as those in the prior art, and are not described in detail.

As shown in fig. 1 and 2, a feeding rail 2 arranged along a feeding direction is arranged in a hearth 11, a row of upright posts 3 are respectively arranged on two sides of the feeding rail 2, the two rows of upright posts 3 are symmetrically arranged about the feeding rail 2, and a plurality of upright posts 3 are arranged in each row along the length direction of the feeding rail 2. Placed brace table 4 on two rows of stands 3, brace table 4 sets up along 2 length direction of feeding track, and be equipped with a plurality of support frames 5 along its length direction array on brace table 4, every support frame 5 top is equipped with two horizontal backing rolls 51 that are parallel to each other and perpendicular to brace table 4 length direction, form the space that is used for holding aluminium book 6 between two backing rolls 51, all placed on every support frame 5 and rolled up 6 with the aluminium of two backing rolls 51 butts, and the centre bore 61 axis of aluminium book 6 is on a parallel with backing roll 51.

As shown in fig. 2, two sides of the feeding track 2 are respectively provided with heating frames 7 arranged along the length direction thereof, and the two groups of heating frames 7 are symmetrically arranged with respect to the feeding track 2 and are respectively located at one side of the row of upright columns 3 close thereto, which is far away from the feeding track 2, i.e. the upright columns 3 are located between the feeding track 2 and the heating frames 7; two groups of heating racks 7 are horizontally and relatively slidably arranged in the hearth 11 along the direction vertical to the length direction of the feeding track 2. Heating rollers 8 arranged along the sliding direction of the two groups of heating frames 7 are respectively arranged on one sides of the two groups of heating frames adjacent to the two groups of heating frames 3, and the heating rollers 8 on each group of heating frames 7 are arrayed along the length direction of the heating frames 7. The heating rollers 8 are positioned above the upright posts 3 and are coaxial with the central holes 61 of the corresponding aluminum coils 6, and the sum of the lengths of the heating rollers 8 corresponding to each other on each group of heating frames 7 is greater than the width of the aluminum coils 6.

As shown in fig. 1 and fig. 2, a plurality of aluminum coils 6 are placed on the corresponding support frames 5 in advance, and then the whole support platform 4 is conveyed into the hearth 11 through the feeding rail 2 by using a transport vehicle (not shown in the figures, the structure is the same as that in the prior art) and is transferred and placed on the two rows of upright posts 3, so that the plurality of aluminum coils 6 are conveyed to the open hall at one time, and the labor intensity can be effectively reduced. As shown in fig. 2 and 3, the two sets of heating frames 7 are driven to move relatively, so as to drive the corresponding heating rollers 8 to be relatively inserted into the central holes 61 of the corresponding aluminum coils 6. After the shutter 13 is closed, the heating device heats and anneals the aluminum coil 6 from the outside of the aluminum coil, and the heating roller 8 heats and anneals the aluminum coil 6 from the inside of the aluminum coil 6, so that the aluminum coil 6 is heated uniformly, and the annealing effect and the annealing efficiency of the aluminum coil 6 are effectively improved. As shown in figure 1, a hydrogen tank 10 communicated with a hearth 11 through an air inlet pipe 101 is further arranged outside the furnace body 1, and hydrogen is introduced into the hearth 11 in the annealing process, so that the oxidation of the aluminum coil 6 is reduced, and the quality of the aluminum coil 6 is improved.

In order to realize the sliding installation of the heating rack 7 in the furnace 11, as shown in fig. 2, slide rails 72 parallel to the heating roller 8 are respectively arranged at two sides of the feeding rail 2 in the furnace 11, and a plurality of slide rails 72 at each side of the feeding rail 2 are arranged in an array along the length direction of the feeding rail 2. Each heating frame 7 is provided with a plurality of supporting legs 71 which are slidably mounted in corresponding sliding rails 72 one by one, the supporting legs 71 are slidably mounted in the sliding rails 72, the heating frames 7 are slidably mounted in the hearth 11, and the stability that the heating frames 7 drive the heating roller 8 to slide is ensured.

In order to drive the heating frame 7 to drive the heating roller 8 to slide, as shown in fig. 2 and 3, fixing frames 9 corresponding to and parallel to each group of heating frames 7 are respectively arranged on two sides outside the furnace body 1, a plurality of cylinders 91 arranged along the length direction of the heating roller 8 are respectively arranged on each group of fixing frames 9, the cylinders 91 are arranged along the length direction of the fixing frames 9, and a piston rod of each cylinder 91 penetrates through the furnace body 1 to be fixedly connected with the heating frames 7. The cylinder 91 drives the heating frame 7 to drive the heating roller 8 to slide along the guide rail, the structure is simple, the operation is easy, the cylinder 91 is arranged outside the furnace body 1, only the piston rod penetrates into the hearth 11, the service life of the cylinder 91 can be prolonged to a certain extent, and the cost is reduced.

In order to identify whether the heating roller 8 moves in place or not so as to stop moving the heating roller 8, as shown in fig. 3 and 4, a protrusion 81 and a groove 82 which are matched with each other are respectively arranged on the end faces of the ends, close to each other, of the heating rollers 8 corresponding to each heating frame 7 in each group, that is, in the two corresponding heating rollers 8, the protrusion 81 is arranged on the end face of one heating roller 8, the groove 82 matched with the protrusion 81 is arranged on the end face of the other heating roller 8, and a sensing piece 821 which is in communication connection with the air cylinder 91 is embedded at the bottom of each groove 82. Therefore, when the protrusion 81 of one of the heating rollers 8 touches the sensing piece 821 in the groove 82 of the corresponding heating roller 8, the sensing piece 821 feeds back a signal to control the cylinder 91 to stop working, manual judgment and control of the cylinder 91 are not needed, and the device is convenient, trouble-saving and high in automation degree.

The utility model discloses a theory of operation and application method:

a plurality of aluminum coils 6 are placed on the corresponding support frames 5 in advance, then the whole support platform 4 is conveyed into the hearth 11 through the feeding rail 2 by using a transport vehicle, and the aluminum coils are transferred and placed on the two rows of upright posts 3. Then, the air cylinder 91 is started, and the air cylinder 91 drives the two groups of heating racks 7 to relatively move along the slide rail 72, so as to drive the corresponding heating roller 8 to relatively insert into the central hole 61 of the corresponding aluminum coil 6. When the protrusion 81 of one of the heating rollers 8 contacts the sensing piece 821 in the groove 82 of the corresponding heating roller 8, the sensing piece 821 feeds back a signal to control the cylinder 91 to stop working. After the shutter 13 is closed, the heating device heats and anneals the aluminum coil 6 from the outside of the aluminum coil, and the heating roller 8 heats and anneals the aluminum coil 6 from the inside of the aluminum coil 6, so that the aluminum coil 6 is heated uniformly, the annealing effect and the annealing efficiency of the aluminum coil 6 are effectively improved, and the labor intensity of workers is reduced. Wherein, in the annealing process, the hydrogen tank 10 leads hydrogen into the hearth 11, thereby reducing the oxidation of the aluminum coil 6 and improving the quality of the aluminum coil 6.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. An aluminum coil annealing furnace comprises a furnace body (1), wherein a hearth (11) and a heating device are arranged in the furnace body (1), a feeding hole (12) communicated with the hearth (11) is formed in one side of the furnace body (1), and a stop door (13) is vertically and slidably mounted at the position of the feeding hole (12); the method is characterized in that: a feeding track (2) arranged along the feeding direction is arranged in the hearth (11), heating frames (7) arranged along the length direction of the feeding track are respectively arranged on two sides of the feeding track (2), the two groups of heating frames (7) are symmetrically arranged relative to the feeding track (2), and are horizontally and relatively slidably arranged in the hearth (11) along the direction perpendicular to the length direction of the feeding track (2); heating rollers (8) arranged along the sliding direction of the two groups of heating frames (7) are respectively arranged on the sides, close to each other, of the two groups of heating frames (7), and a plurality of heating rollers (8) on each group of heating frames (7) are arrayed along the length direction of the heating frames (7); a row of upright posts (3) are respectively arranged between the feeding track (2) and the two groups of heating frames (7) along the length direction of the feeding track, and the two rows of upright posts (3) are symmetrically arranged relative to the feeding track (2); two rows be equipped with brace table (4) on stand (3), be equipped with a plurality of support frames (5) along feeding track (2) length direction array on brace table (4), placed aluminium respectively on support frame (5) and rolled up (6), a plurality of centre bore (61) of aluminium book (6) and warming mill (8) one-to-one coaxial correspondence of both sides.

2. An aluminum coil annealing furnace according to claim 1, characterized in that: slide rails (72) which are perpendicular to the length direction of the feeding rail (2) and are horizontally arranged are respectively arranged on two sides of the feeding rail (2) in the hearth (11), and a plurality of slide rails (72) on each side of the feeding rail (2) are arrayed along the length direction of the feeding rail (2); each heating frame (7) is provided with a supporting leg (71) which is slidably arranged in a corresponding sliding rail (72).

3. An aluminum coil annealing furnace according to claim 2, characterized in that: the outer both sides of furnace body (1) are equipped with respectively and correspond and parallel mount (9) with every group heating frame (7), every group be equipped with a plurality of cylinder (91) that set up along warming mill (8) length direction on mount (9) respectively, cylinder (91) are equipped with a plurality of along mount (9) length direction, and every the piston rod of cylinder (91) passes furnace body (1) and heating frame (7) fixed connection.

4. An aluminum coil annealing furnace according to claim 3, characterized in that: the sum of the lengths of the heating rollers (8) corresponding to each other on each group of heating frames (7) is larger than the width of the aluminum coil (6).

5. An aluminum coil annealing furnace according to claim 4, characterized in that: and the end faces of the one-to-one corresponding heating rollers (8) on each group of heating frames (7) close to each other are respectively provided with a protrusion (81) and a groove (82) which are matched with each other.

6. An aluminum coil annealing furnace according to claim 5, characterized in that: the bottom of the groove (82) is embedded with an induction sheet (821), and the induction sheet (821) is in communication connection with the air cylinder (91).

7. An aluminum coil annealing furnace according to any one of claims 1 to 6, characterized in that: the top of the support frame (5) is provided with two supporting rollers (51) parallel to the heating roller (8), and the aluminum coil (6) is abutted against the two supporting rollers (51).

8. An aluminum coil annealing furnace according to any one of claims 1 to 6, characterized in that: a hydrogen tank (10) is arranged outside the furnace body (1), and the hydrogen tank (10) is connected with an air inlet pipe (101) communicated with the hearth (11).