CN115805242A - Silver-copper composite strip hot rolling device and method - Google Patents

Abstract

The invention relates to the technical field of silver-copper composite belt hot rolling, in particular to a silver-copper composite belt hot rolling device and a hot rolling method.A vertical plate is fixed on one side of a base, a plurality of guide rollers for guiding a silver belt are arranged on one side of the vertical plate, and a height adjusting mechanism of the guide rollers is arranged in the vertical plate; according to the invention, by arranging the copper slag removing mechanism, when the surface of the hot roller is adhered with copper slag, the copper slag protrudes out of the surface of the hot roller to be contacted with the arc-shaped end of the steel brush, so that the steel brush is driven by the horizontal linear mechanism to directly strip the copper slag from the hot roller, the surface of the composite belt can be prevented from being damaged by the copper slag on the surface when the copper belt and the silver belt are pressed by the hot roller, the product is prevented from being poor in appearance and uneven in thickness, the normal use of components is prevented from being influenced, and the product quality is improved; the square barrel can lift the copper strip by arranging the lifting mechanism, the effect of supporting the middle part of the copper strip is achieved, and the probability of scratches caused by contact friction of the copper strip and an external device can be reduced.

Description

Silver-copper composite strip hot rolling device and method

Technical Field

The invention belongs to the technical field of silver-copper composite belt hot rolling, and particularly relates to a silver-copper composite belt hot rolling device and a silver-copper composite belt hot rolling method.

Background

The silver-copper composite metal strip is a composite material formed by firmly combining silver and copper materials along the whole contact surface. The silver-copper composite strip integrates the excellent electrical property, oxidation resistance and physical property of copper of fine-grained silver, and elements made of the silver-copper composite strip as a contact material are widely applied to various electrical appliances such as switch connectors, relays and the like.

When a silver strip and a copper strip are compounded, a hot rolling process is generally adopted, and during the hot rolling process, the rollers have adhesion abrasion, which is mainly caused by adhesion when metals with strong adhesion, such as titanium, aluminum, copper and alloys thereof, are rolled, so that pecking marks appear on the surface of a rolled piece or indentations are formed on the surface of the rolled piece.

The hot rolling device for producing the copper-silver composite belt, disclosed in chinese patent CN212018938U, comprises a fixing plate, a hot rolling frame is fixedly connected to the top of the fixing plate, a driving motor is arranged on the back of the hot rolling frame, an output end of the driving motor penetrates through the hot rolling frame and is fixedly connected with a rotating rod, the right side of the rotating rod is movably connected with the joint of the hot rolling frame, and a driving roller is fixedly connected to the surface of the rotating rod. The utility model discloses a through rotary rod, drive roll, driving motor, bearing housing, horizontal pole, auxiliary roll, movable rod, initiative taper tooth, transfer line, driven taper tooth, movable plate, screw rod, spiral shell piece, can make the device reach the function of being convenient for adjust and use, the user receives the production technology influence to need carry out the hot rolling of compound area of different thickness in operation process, and the roll spacing of hot roll is adjusted inconveniently, is unfavorable for the problem that user's production operation used.

The hot roll of the device is not provided with a roll deslagging device, and the hot roll needs to be manually deslagged before use, so that the device is not convenient enough; simultaneously when the copper strips conveys, because equipment is longer, although both ends are provided with wind-up roll and blowing roller, the copper strips in middle part still can have the phenomenon of drooping under the action of gravity, causes the friction scratch with the spare part contact on the equipment easily, and above two kinds of problems all can shine into silver-copper strip surface impaired.

Disclosure of Invention

The invention aims to provide a silver-copper composite belt hot rolling device and a silver-copper composite belt hot rolling method, which are used for solving the problems that in the background technology, the surface of a binding piece is indented due to copper slag adhesion, manual slag removal is needed, the binding piece is not convenient and fast enough, and the surface is easily scratched due to the fact that a copper belt is long and is easily contacted with an external device.

In order to realize the purpose, the invention adopts the following technical scheme:

a silver-copper composite belt hot rolling device comprises a workbench and a base, wherein a vertical plate is fixed on one side of the base, and an installation plate is fixed on the other side of the base; one side of the vertical plate is provided with a plurality of guide rollers for guiding the silver strips; a height adjusting mechanism of the guide roller is arranged in the vertical plate;

the copper strip lifting device comprises a workbench, a lifting mechanism, a lifting roller, a lifting mechanism and a lifting roller, wherein the upper surface of the workbench is provided with an inverted L-shaped bracket, one side of the bracket is provided with the lifting mechanism for lifting a copper strip, the upper surface of a base is provided with an installation position for installing the lifting mechanism, the lifting mechanism comprises a square cylinder, a lifting mechanism of the square cylinder is installed in the bracket, and one side of a vertical plate is rotatably connected with the lifting roller; one side of the lifting roller is provided with two hot rollers, the silver-copper composite strip passes through the two hot rollers, one side of the mounting plate is provided with a transmission mechanism for driving the hot rollers, and one side of the hot rollers is provided with a copper-removing slag mechanism of the hot rollers;

the copper-removing slag mechanism comprises steel brushes, a horizontal displacement mechanism of the steel brushes is installed on one side of the vertical plate, two groups of steel brushes are arranged on the steel brushes, and the two groups of steel brushes are respectively located on one sides of the two hot rolls.

The technical effect obtained by adopting the technical scheme is as follows: the guide roller and the height adjusting mechanism are arranged, so that the silver belt covers the surface of the copper belt from above the copper belt and enters the hot rolling roller together to realize hot-pressing compounding, mutual fitting between the silver belt and the copper belt is ensured, the part which is easy to hang in the middle of the copper belt is lifted by the lifting mechanism, the silver belt and the copper belt which are fitted are prevented from contacting with a base or external equipment as a whole, and the surface damage rate of the silver-copper compound belt can be reduced; through the arrangement of the transmission mechanism, the two hot rolls reversely rotate under the action of one drive to roll the silver-copper strip. Through setting up the steel brush, when making steel brush and copper slag contact to under the drive of horizontal displacement mechanism, sweep away the hot roll with the copper slag, solved among the background art copper slag and adhered the bundle surface that causes and appear the indentation, need remove the slag manually, it is convenient inadequately, and the copper strips is longer simultaneously, causes the problem of surface fish tail with the external device contact easily.

Preferably, the horizontal displacement mechanism comprises a fixing plate, the fixing plate is fixed on one side of the vertical plate, a guide rod is fixed at one end of the fixing plate, the other end of the fixing plate is rotatably connected with a displacement screw, and a driving motor for driving the displacement screw to rotate is mounted on the other side of the vertical plate.

The technical effect obtained by adopting the technical scheme is as follows: the displacement screw rod is driven to rotate by the driving motor, so that the steel brushes arranged on the guide rod and the displacement screw rod in a follow-up mode are driven, and copper slag can be cleaned by the steel brushes.

Preferably, horizontal displacement mechanism still includes rectangle strip movable plate, the guide bar run through the movable plate and with movable plate sliding connection, the removal screw rod run through the movable plate and with movable plate threaded connection, two sets of the both ends at the movable plate are fixed respectively to the one end of steel brush, the movable plate is vertical setting, the one end that the steel brush is close to the hot roll is the arc setting, a plurality of gyro wheels are installed to the inner chamber of square section of thick bamboo, the both ends of gyro wheel are connected with the both sides inner wall rotation of square section of thick bamboo.

The technical effect obtained by adopting the technical scheme is as follows: after the displacement screw rod rotated, the movable plate set up to the arc through the one side with the steel brush at guide bar outer wall horizontal migration, made it more press close to the hot roll surface, only when the hot roll surface has the copper sediment, convex copper sediment can contact with the arcwall face of steel brush, has guaranteed that the steel brush clears up smoothly convex copper sediment.

Preferably, the lifting mechanism comprises a plurality of rollers arranged in the inner cavity of the square barrel, and two ends of each roller are rotationally connected with the inner walls of the two sides of the square barrel; the lifting screw rod penetrates through the other end of the square cylinder and is in threaded connection with the square cylinder, one end of the lifting screw rod is rotatably connected with the base, the other end of the lifting screw rod is rotatably connected with the transverse plate of the support, and a knob is fixed at the top of the lifting screw rod.

The technical effect obtained by adopting the technical scheme is as follows: through setting up the gyro wheel, when the section of thick bamboo area removed in square section of thick bamboo, the gyro wheel rolls, the friction of reducible section of thick bamboo area. When the knob is screwed, the lifting screw rod rotates, the square barrel in threaded connection with the lifting screw rod moves up and down under the limiting of the guide rod, so that the part of the copper strip, which is easy to hang down, is lifted, the silver strip and the copper strip which are attached to each other are prevented from contacting with the base or external equipment as a whole, and the surface damage rate of the silver-copper composite strip can be reduced.

Preferably, the installation position includes draw-in groove, screw hole and character cut in bas-relief shape base, the bottom joint of the perpendicular board of support is in the draw-in groove, the bottom threaded connection of guide arm is in the screw hole, the bottom joint of lifting screw is in the base, the base rotates to be connected in the base, the installation position is provided with a plurality of groups.

The technical effect obtained by adopting the technical scheme is as follows: through setting up the installation position, make whole lifting mechanism be convenient for install on the base, this mechanism can install a plurality of simultaneously according to the demand, and range distance and height all can be adjusted through the demand, use in a flexible way.

Preferably, the guide roll includes bull stick and spacing ring, the outer wall at the bull stick is fixed to the spacing ring, every the spacing ring of bull stick outer wall all is provided with two, two the spacing ring is used for passing the silver-colored area, the one end of bull stick is rotated and is connected with the seat that rotates.

Preferably, height adjusting mechanism includes the slider, the spout that supplies the slider to reciprocate is seted up to one side of riser, it installs in the slider to rotate the seat, one side of slider is installed the drive and is rotated seat pivoted and rotate the motor, the top of slider is rotated and is connected with the lead screw, the top of lead screw run through the riser and with riser threaded connection.

The technical effect obtained by adopting the technical scheme is as follows: when twisting the lead screw, the slider reciprocates in the spout to realize reciprocating of guide roll, when the start-up rotates the motor, the guide roll rotates, through setting up a plurality of guide roll, the altitude mixture control of every guide roll sets up alone, and the silver-colored area of being convenient for changes direction and copper strips laminating under the effect of guide roll.

Preferably, one side of the vertical plate is rotatably connected with a supporting roller, and the supporting roller is positioned between the lifting roller and the hot roller.

Preferably, the transmission mechanism comprises a driving gear and a driven gear, the driving gear and the driven gear are respectively fixed at one end of each of the two hot rolls, the driving gear is meshed with the driven gear, one end of one of the hot rolls is provided with a hot rolling motor for driving the hot rolls, and the hot rolling motor is fixed on one side of the vertical plate through screws.

Based on the hot rolling device for the silver-copper composite strip, the invention also provides a hot rolling method for the silver-copper composite strip, which comprises the following steps:

s1, putting a silver welding strip with the thickness of 1.2mm into a multi-channel strip splitting machine with a winding function, cutting the silver welding strip into a plurality of narrow strips with the width of 20mm, respectively conveying a copper strip with the width of 50mm and the thickness of 2mm and a silver strip cut into the narrow strips into a heating furnace with atmosphere protection under the action of an uncoiler for heat preservation and heating, heating and preserving heat for 20 minutes at the temperature of 600 ℃ under the protection of argon, conveying the copper strip conveyed from the heating furnace through a lifting mechanism for protection, and conveying the copper strip into a composite rolling mill for hot rolling;

s2, before the hot rolling mill penetrates into the strip, removing slag on the surface of the hot rolling mill through a copper slag removing mechanism, after the slag removal is completed, enabling the silver strip to be tightly attached to the upper surface of the copper strip under the limit of a conveying device, enabling the silver strip and the copper strip to enter the rolling mill together, adjusting the rotating speed of the hot rolling mill to be 380m/min, the rolling force to be 3000KN, the heating temperature to be 650 ℃, continuously tracking the thickness of the strip through a non-contact thickness gauge in the rolling process, and adjusting the speed of the hot rolling mill under the rotating speed of 300-480 m/min to enable the composite strip to be uniformly rolled to be 0.1mm thick;

and S3, the rolled and formed composite strip enters an annealing furnace, annealing is carried out for 3 minutes at the temperature of 600 ℃, and the silver-copper composite strip after being refined is wound by a winding machine again.

Compared with the prior art, the silver-copper composite strip hot rolling device and the hot rolling method provided by the invention have the following advantages:

1. according to the invention, by arranging the copper slag removing mechanism, when the surface of the hot roller is adhered with copper slag, the copper slag protrudes on the surface of the hot roller to contact with the arc-shaped end of the steel brush, so that the steel brush is driven by the horizontal linear mechanism to directly strip the copper slag from the hot roller, the surface of the composite belt can be prevented from being damaged by the copper slag on the surface when the hot roller is used for pressing the copper belt and the silver belt, the influence on the normal use of components due to poor appearance and uneven thickness of a product is avoided, and the quality of the product is improved.

2. The lifting mechanism is arranged to enable the square barrel to lift the copper strip, so that the middle of the copper strip is supported, the lifting mechanism is convenient to mount with the base due to the structural arrangement, the height of the square barrel can be adjusted through the lifting mechanism, the lifting position and the height of the copper strip can be automatically adjusted according to needs, and the probability of scratches caused by contact friction of the copper strip and an external device can be reduced through the arrangement of the lifting mechanism.

Drawings

FIG. 1 is a block diagram of the method of the present invention;

FIG. 2 is an isometric view of the present invention;

FIG. 3 is a schematic diagram of the lifting mechanism of the present invention;

FIG. 4 is a schematic structural view of a copper slag removing mechanism according to the present invention;

FIG. 5 is a top view of the present invention;

fig. 6 is a side view of the present invention.

In the figure: 1. a base; 2. a vertical plate; 3. mounting a plate; 4. a guide roller; 5. a height adjustment mechanism; 6. a support; 7. a lifting mechanism; 8. an installation position; 9. lifting the roller; 10. a hot roll; 11. a transmission mechanism; 12. a copper slag removing mechanism; 1201. a steel brush; 701. a square cylinder; 1202. a fixing plate; 1203. a guide bar; 1204. a displacement screw; 1205. a drive motor; 1206. moving the plate; 702. a roller; 703. a lifting screw; 704. a knob; 705. a guide bar; 801. a card slot; 802. a threaded hole; 803. a base; 401. a rotating rod; 402. a limiting ring; 403. rotating the base; 501. a slider; 502. a chute; 503. rotating the motor; 504. a screw rod; 505. a support roll; 1101. a driving gear; 1102. a driven gear; 1103. a hot rolling motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a silver-copper composite strip hot rolling device shown in figures 1-6, which comprises a workbench and comprises a base 1, wherein a vertical plate 2 is fixed on one side of the base 1, a mounting plate 3 is fixed on the other side of the base 1, a plurality of guide rollers 4 for guiding a silver strip are arranged on one side of the vertical plate 2, a height adjusting mechanism 5 of the guide rollers 4 is arranged in the vertical plate 2, an inverted L-shaped support 6 is arranged on the upper surface of the base 1, a lifting mechanism 7 for lifting a copper strip is arranged on one side of the support 6, a mounting position 8 for mounting the lifting mechanism 7 is arranged on the upper surface of the base 1, a lifting roller 9 is rotatably connected to one side of the vertical plate 2, a hot rolling roller 10 is arranged on one side of the lifting roller 9, two hot rolling rollers 10 are arranged, a transmission mechanism 11 for driving the hot rolling roller 10 is arranged on one side of the mounting plate 3, and a copper removing mechanism 12 for the hot rolling roller 10 is arranged on one side of the hot rolling roller 10.

The silver belt guide roller 4 and the height adjusting mechanism 5 are arranged, so that the silver belt covers the surface of the copper belt from above the copper belt and enters the hot rolling roller together to realize hot-pressing compounding, and the lifting mechanism 7 is arranged to lift the part of the copper belt which is easy to hang down, so that the copper belt is prevented from contacting with the base 1 or external equipment, and friction is increased; through setting up lifting roller 9 and to the copper strips lifting, the silver area of being convenient for pastes tightly with the copper strips, through setting up drive mechanism 11, makes two hot rolls 10 counter-rotate under a driven effect, rolls the silver copper area, and lifting roller 9 is used for the equal lifting of copper strips and silver area, makes both get into hot roll 10 under the state of pasting tightly.

The copper slag removing mechanism 12 comprises a steel brush 1201, a horizontal displacement mechanism of the steel brush 1201 is installed on one side of the vertical plate 2, the steel brush 1201 is provided with two groups, the two groups of steel brushes 1201 are respectively located on one side of two hot rolls 10, the lifting mechanism 7 comprises a square cylinder 701, and a lifting mechanism of the square cylinder 701 is installed in the support 6.

By arranging the steel brush 1201, when the steel brush 1201 is in contact with the copper slag, the copper slag is swept away from the hot roll 10 under the driving of the horizontal displacement mechanism.

The horizontal displacement mechanism comprises a fixing plate 1202, the fixing plate 1202 is fixed on one side of the vertical plate 2 through screws, a guide rod 1203 is fixed at one end of the fixing plate 1202, a displacement screw 1204 is connected to the other end of the fixing plate 1202 in a rotating mode, a driving motor 1205 for driving the displacement screw 1204 to rotate is installed on the other side of the vertical plate 2, and the driving motor 1205 is started to enable the displacement screw 1204 to rotate.

The horizontal displacement mechanism further comprises a rectangular strip-shaped moving plate 1206, the guide rod 1203 penetrates through the moving plate 1206 and is in sliding connection with the moving plate 1206, the moving screw penetrates through the moving plate 1206 and is in threaded connection with the moving plate 1206, one ends of the two groups of steel brushes 1201 are respectively fixed at two ends of the moving plate 1206, the moving plate 1206 is longitudinally arranged, and one ends of the steel brushes 1201 close to the hot roll 10 are arranged in an arc shape.

After the displacement screw 1204 rotates, the moving plate 1206 horizontally moves on the outer wall of the guide rod 1203, and by arranging one side of the steel brush 1201 into an arc shape, the side is closer to the surface of the hot roll 10, and only when copper slag exists on the surface of the hot roll 10, the convex copper slag can be in contact with the arc-shaped surface of the steel brush 1201.

The inner cavity of the square cylinder 701 is provided with a plurality of rollers 702, two ends of each roller 702 are rotatably connected with the inner walls of two sides of the square cylinder 701, and by arranging the rollers 702, as shown in fig. 3, when the copper strip moves in the square cylinder 701, the rollers 702 roll.

The lifting mechanism comprises a guide rod 705 and a lifting screw rod 703, the guide rod 705 penetrates through one end of the square barrel 701 and is in sliding connection with the square barrel 701, the lifting screw rod 703 penetrates through the other end of the square barrel 701 and is in threaded connection with the square barrel 701, one end of the lifting screw rod 703 is rotatably connected with the base 1, the other end of the lifting screw rod 703 is rotatably connected with the transverse plate of the support 6, and a knob 704 is fixed at the top of the lifting screw rod 703.

When the knob 704 is turned, the lifting screw 703 is rotated, so that the square cylinder 701 screwed with the lifting screw 703 moves up and down under the limit of the guide rod 705.

The mounting position 8 comprises a clamping groove 801, a threaded hole 802 and a concave base 803, the bottom end of the vertical plate of the support 6 is clamped in the clamping groove 801, the bottom end of the guide rod 705 is in threaded connection with the threaded hole 802, the bottom end of the lifting screw rod 703 is clamped in the base 803, the base 803 is rotatably connected with the base 1, and the mounting position 8 is provided with a plurality of groups.

Through setting up installation position 8, make whole lifting mechanism 7 be convenient for install on base 1, this mechanism can install a plurality of simultaneously according to the demand, and range distance and height all can be adjusted through the demand, use in a flexible way.

Guide roll 4 includes bull stick 401 and spacing ring 402, and the outer wall at bull stick 401 is fixed to spacing ring 402, and the spacing ring 402 of every bull stick 401 outer wall all is provided with two, and the one end of bull stick 401 is rotated and is connected with and rotates seat 403, and in silver-colored area transfer process, silver-colored area is located between two spacing rings 402.

Height adjusting mechanism 5 includes slider 501, and the spout 502 that supplies slider 501 to reciprocate is seted up to one side of riser 2, rotates seat 403 and installs in slider 501, and the drive is installed to one side of slider 501 and is rotated seat 403 pivoted and rotate motor 503, and slider 501's top is rotated and is connected with lead screw 504, and riser 2 threaded connection are run through on the top of lead screw 504.

When screwing lead screw 504, slider 501 reciprocates in spout 502 to realize reciprocating of guide roll 4, when starting to rotate motor 503, guide roll 4 rotates, and through setting up a plurality of guide roll 4, the altitude mixture control of every guide roll 4 sets up alone, and the silver area of being convenient for changes direction and copper strips laminating under the effect of guide roll 4.

One side of the vertical plate 2 is rotatably connected with a supporting roller 505, the supporting roller 505 is positioned between the lifting roller 9 and the hot roller 10, and the supporting roller 505 is arranged to support the copper strip.

The transmission mechanism 11 comprises a driving gear 1101 and a driven gear 1102, the driving gear 1101 and the driven gear 1102 are respectively fixed at one end of two hot rolls 10, the driving gear 1101 is meshed with the driven gear 1102, one end of one hot roll 10 is provided with a hot rolling motor for driving the hot rolls 10, and the hot rolling motor is fixed at one side of the vertical plate 2 through screws;

when the hot rolling motor is started, the driving gear 1101 rotates to drive the driven gear 1102 to rotate, so that the two hot rolling rolls 10 rotate relatively.

Based on the silver-copper composite strip hot rolling device, the invention also provides a use method of the silver-copper composite strip hot rolling device, which comprises the following steps:

s1, putting a silver welding strip with the thickness of 1.2mm into a multi-channel slitting machine with a winding function, cutting the silver welding strip into a plurality of narrow strips with the width of 20mm, respectively conveying a copper strip with the width of 50mm and the thickness of 2mm and a silver strip cut into the narrow strips into a heating furnace with atmosphere protection under the action of an uncoiler for heat preservation and heating, heating and preserving heat for 20 minutes under the protection of argon at 600 ℃, conveying and protecting the copper strip conveyed from the heat preservation furnace through a lifting mechanism, and conveying the copper strip into a composite rolling mill for hot rolling;

s2, before the hot rolling mill penetrates into the strip, removing slag on the surface of the hot rolling mill through a copper slag removing mechanism, after the slag removal is completed, enabling the silver strip to be tightly attached to the upper surface of the copper strip under the limit of a conveying device, enabling the silver strip and the copper strip to enter the rolling mill together, adjusting the rotating speed of the hot rolling mill to be 380m/min, the rolling force to be 3000KN, the heating temperature to be 650 ℃, continuously tracking the thickness of the strip through a non-contact thickness gauge in the rolling process, and adjusting the speed of the hot rolling mill under the rotating speed of 300-480 m/min to enable the composite strip to be uniformly rolled to be 0.1mm thick;

and S3, the rolled and formed composite strip enters an annealing furnace, annealing is carried out for 3 minutes at the temperature of 600 ℃, and the silver-copper composite strip after being refined is wound by a winding machine again.

During the use, the hot roll outer wall removes the copper sediment: starting a driving motor to enable a displacement screw to rotate, moving a moving plate to horizontally move on the outer wall of a guide rod after the displacement screw rotates, and enabling the arc-shaped end of a steel brush to be in contact with copper slag protruding from the surface of the hot roll to strip the copper slag from the hot roll;

before hot pressing, as shown in fig. 2, the silver belt penetrates among a plurality of guide rollers, the copper belt penetrates in the square barrel, the lower surface of the copper belt is contacted with a roller in the square barrel, and the copper belt (a metal belt positioned below the silver belt) moves in the square barrel under the action of a winding roller and a discharging roller which are arranged at two ends of the device;

when the lifting height of the copper strip is adjusted: screwing the knob, and rotating the lifting screw rod to enable the square barrel in threaded connection with the lifting screw rod to move up and down under the limit of the guide rod until the required height is adjusted;

during hot pressing, at the position of the supporting roller (the supporting roller is shown in fig. 2 and fig. 5), the silver belt is limited by the limiting ring of the guide roller and is attached to the surface of the copper belt under the downward pressing of the rotating rod, and the silver belt and the copper belt are pressed into the hot roller for hot pressing from the lower part at the position of the lifting roller.

According to the invention, the copper slag removing mechanism is arranged to strip the copper slag from the hot roll, so that the surface of the composite strip can be prevented from being damaged by the copper slag on the surface when the copper strip and the silver strip are pressed by the hot roll, and the square cylinder can lift the copper strip by the lifting mechanism, thereby supporting the middle part of the copper strip.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions and improvements to part of the technical features of the foregoing embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A silver-copper composite belt hot rolling device is characterized in that: comprises that

The workbench comprises a base (1), wherein a vertical plate (2) is fixed on one side of the base (1), and a mounting plate (3) is fixed on the other side of the base (1);

a plurality of guide rollers (4) for guiding the silver strips are arranged on one side of the vertical plate (2); a height adjusting mechanism (5) of a guide roller (4) is arranged in the vertical plate (2);

an inverted L-shaped support (6) is mounted on the upper surface of the workbench (1), a lifting mechanism (7) for lifting a copper strip is mounted on one side of the support (6), a mounting position (8) for mounting the lifting mechanism (7) is arranged on the upper surface of the base (1), the lifting mechanism (7) comprises a square barrel (701), a lifting mechanism of the square barrel (701) is mounted in the support (6), and a lifting roller (9) is rotatably connected to one side of the vertical plate (2);

one side of the lifting roll (9) is provided with two hot rolls (10), the silver-copper composite strip passes through the two hot rolls (10), one side of the mounting plate (3) is provided with a transmission mechanism (11) for driving the hot rolls (10), and one side of the hot rolls (10) is provided with a copper-removing slag mechanism (12) of the hot rolls (10);

the copper slag removing mechanism (12) comprises steel brushes (1201), a horizontal displacement mechanism of the steel brushes (1201) is installed on one side of the vertical plate (2), two groups of steel brushes (1201) are arranged, and the two groups of steel brushes (1201) are respectively located on one side of the two hot rolls (10).

2. The silver-copper composite strip hot rolling device according to claim 1, characterized in that: the horizontal displacement mechanism comprises a fixing plate (1202), the fixing plate (1202) is fixed on one side of a vertical plate (2), a guide rod (1203) is fixed at one end of the fixing plate (1202), a displacement screw (1204) is rotatably connected to the other end of the fixing plate (1202), and a driving motor (1205) for driving the displacement screw (1204) to rotate is installed on the other side of the vertical plate (2).

3. The silver-copper composite strip hot rolling device according to claim 2, characterized in that: horizontal displacement mechanism still includes rectangle strip movable plate (1206), guide bar (1203) run through movable plate (1206) and with movable plate (1206) sliding connection, the removal screw rod run through movable plate (1206) and with movable plate (1206) threaded connection, two sets of the one end of steel brush (1201) is fixed respectively at the both ends of movable plate (1206), movable plate (1206) are vertical setting, the one end that steel brush (1201) are close to hot roll (10) is the arc setting.

4. The silver-copper composite strip hot rolling device according to claim 3, characterized in that: the lifting mechanism comprises a plurality of rollers (702) arranged in the inner cavity of the square barrel (701), and two ends of each roller (702) are rotationally connected with the inner walls of two sides of the square barrel (701); guide arm (705) and lifting screw (703), guide arm (705) run through the one end of square section of thick bamboo (701) and with square section of thick bamboo (701) sliding connection, lifting screw (703) run through the other end of square section of thick bamboo (701) and with square section of thick bamboo (701) threaded connection, the one end and the base (1) of lifting screw (703) rotate to be connected, the other end of lifting screw (703) rotates with the horizontal board of support (6) to be connected, the top of lifting screw (703) is fixed with knob (704).

5. The silver-copper composite strip hot rolling device according to claim 4, characterized in that: installation position (8) are including draw-in groove (801), screw hole (802) and font base (803), the bottom joint of the board is vertically put in draw-in groove (801) in support (6), the bottom threaded connection of guide arm (705) is in screw hole (802), the bottom joint of lifting screw (703) is in base (803), base (803) rotate to be connected in base (1), installation position (8) are provided with a plurality of groups.

6. The silver-copper composite strip hot rolling device according to claim 5, characterized in that: guide roll (4) are including bull stick (401) and spacing ring (402), the outer wall at bull stick (401) is fixed in spacing ring (402), every spacing ring (402) of bull stick (401) outer wall all is provided with two, two spacing ring (402) are used for passing silver-colored area, the one end of bull stick (401) is rotated and is connected with and rotates seat (403).

7. The silver-copper composite strip hot rolling device according to claim 6, characterized in that: height adjusting mechanism (5) include slider (501), spout (502) that supply slider (501) to reciprocate are seted up to one side of riser (2), rotate seat (403) and install in slider (501), drive rotation seat (403) pivoted rotation motor (503) are installed to one side of slider (501), the top of slider (501) is rotated and is connected with lead screw (504), the top of lead screw (504) run through riser (2) and with riser (2) threaded connection.

8. The silver-copper composite strip hot rolling device according to claim 7, characterized in that: one side of the vertical plate (2) is rotatably connected with a supporting roller (505), and the supporting roller (505) is positioned between the lifting roller (9) and the guide roller (4).

9. The silver-copper composite strip hot rolling device according to claim 8, characterized in that: the transmission mechanism (11) comprises a driving gear (1101) and a driven gear (1102), the driving gear (1101) and the driven gear (1102) are respectively fixed at one end of each of the two hot rolls (10), the driving gear (1101) is meshed with the driven gear (1102), one of the hot rolls (10) is provided with a hot rolling motor (1103) driving the hot rolls (10), and the hot rolling motor (1103) is fixed on one side of the vertical plate (2) through screws.

10. A hot rolling method of the hot rolling apparatus for silver-copper composite strip according to any one of claims 1 to 9, characterized in that: the method comprises the following steps:

s1, putting a silver welding strip with the thickness of 1.2mm into a multi-channel strip splitting machine with a winding function, cutting the silver welding strip into a plurality of narrow strips with the width of 20mm, respectively conveying a copper strip with the width of 50mm and the thickness of 2mm and a silver strip cut into the narrow strips into a heating furnace with atmosphere protection under the action of an uncoiler for heat preservation and heating, heating and preserving heat for 20 minutes at the temperature of 600 ℃ under the protection of argon, conveying the copper strip conveyed from the heating furnace through a lifting mechanism for protection, and conveying the copper strip into a composite rolling mill for hot rolling;

s2, before the hot rolling mill penetrates into the strip, removing slag on the surface of the hot rolling mill through a copper slag removing mechanism, after the slag removal is completed, enabling the silver strip to be tightly attached to the upper surface of the copper strip under the limit of a conveying device, enabling the silver strip and the copper strip to enter the rolling mill together, adjusting the rotating speed of the hot rolling mill to be 380m/min, the rolling force to be 3000KN, the heating temperature to be 650 ℃, continuously tracking the thickness of the strip through a non-contact thickness gauge in the rolling process, and adjusting the speed of the hot rolling mill under the rotating speed of 300-480 m/min to enable the composite strip to be uniformly rolled to be 0.1mm thick;

and S3, the rolled and formed composite strip enters an annealing furnace, annealing is carried out for 3 minutes at the temperature of 600 ℃, and the silver-copper composite strip after being refined is wound by a winding machine again.

Images