CN116689716A

CN116689716A - Continuous casting production line for lead ingot

Info

Publication number: CN116689716A
Application number: CN202310676021.4A
Authority: CN
Inventors: 冯旭龙; 凃芳兵; 唐晓东; 肖福生
Original assignee: Deyang Hongguang Intelligent Equipment Co ltd
Current assignee: Deyang Hongguang Intelligent Equipment Co ltd
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2023-09-05

Abstract

The invention provides a lead ingot continuous casting production line, which comprises a lead melting furnace, a pouring pot, a steel belt wheel belt type continuous casting device, a straightening coding machine, a shearing machine, a lead ingot cutting and forming machine, a stacking robot and an online packing machine; the lead melting furnace is communicated with the pouring pot through a lead conveying pipe; the pouring pot comprises a shell and an inner container with a liquid level chamber, wherein the shell is arranged on a base, a partition plate is arranged in the liquid level chamber and divides the liquid level chamber into a first containing cavity and a second containing cavity, a communicating pipe which is communicated with the first containing cavity and the second containing cavity is arranged at the bottom end of the partition plate, a drainage tube is connected to the bottom of the first containing cavity, and the drainage tube is communicated with the first containing cavity; one end of the drainage tube, which is far away from the first cavity, is communicated with the cavity of the steel belt wheel belt type continuous casting device through a pouring nozzle. The environmental pollution is reduced, and the quality of the lead ingot is improved. The method has the advantages of accurate flow control, closed crystallization, instant shaping, reduction of oxidizing slag and automation, and also eliminates alloy waste and reduces the segregation phenomenon of the lead ingot.

Description

Continuous casting production line for lead ingot

Technical Field

The invention belongs to the technical field of nonferrous metal continuous casting, and particularly relates to a lead ingot continuous casting production line.

Background

With the increasing application and demand of lead-acid batteries and the like, lead ingot production capacity is enlarged and quality requirements are increased, and lead ingot production processes and equipment are continuously developed and improved. Conventional lead ingot production generally employs gravity casting and continuous casting techniques.

Gravity casting mode. Specifically, the lead material is melted, alloy is added into the melted lead material, and the mixture is conveyed by a lead pump or conveyed into a casting mould through a pipeline after being uniformly stirred. In the actual production process, the following technical problems are presented:

1. the flow control difficulty is high, the flow is unstable, and the fluctuation of the lead alloy liquid is high.

2. The lead alloy liquid is easy to splash when being injected into the mould, so that the potential safety hazard is large; a large amount of air enters the liquid mixture to easily generate bubbles in the molded lead ingot, thereby affecting the quality of the lead ingot.

3. In addition, the density and the melting point of the lead and the alloy are low, a large amount of oxidizing slag is generated in the lead alloy liquid instantly after the lead alloy liquid contacts air, the oxidizing slag floats upwards on the upper surface of the lead alloy liquid in the casting mould, and workers need to salvage the oxidizing slag before crystallization. Because workers work under the environment of high temperature and severe lead smoke, the labor intensity is high, and the physical health of the workers is affected. Meanwhile, the technical problems of serious segregation of lead ingot alloy, poor lead ingot quality and the like caused by great loss of alloy in the lead alloy liquid are also caused.

The horizontal continuous casting manufacturing method of the lead alloy plate disclosed in CN102274935A for producing lead ingots by continuous casting adopts continuous casting equipment and method similar to copper plates and aluminum plates, can only produce lead ingots with rectangular cross sections, and does not solve the serious problem of toxic lead smoke in the production of the lead ingots, but in the actual production process, the lead ingots are required to be processed into shapes with notches at two ends due to the transportation and the transportation of the lead ingots. In another lead ingot continuous casting unit disclosed in CN114985689a, the pouring nozzle is inserted into the casting cavity through the pouring pot, which isolates the lead liquid newly flowing into the casting cavity from contacting with air, reduces pollution and improves lead ingot quality, but only reduces pollution when the lead liquid enters the casting cavity, and also cannot solve pollution of the lead liquid flowing into the pouring pot, and also cannot automatically process and shape the lead ingot finally required.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a lead ingot continuous casting production line, which reduces environmental pollution and improves lead ingot quality.

The technical scheme adopted for solving the technical problems is as follows: the lead ingot continuous casting production line comprises a lead melting furnace, a pouring pot, a steel belt wheel belt type continuous casting device, a straightening coding machine, a shearing machine, a lead ingot cutting and forming machine, a stacking robot and an online packing machine;

the lead melting furnace is communicated with the pouring pot through a lead conveying pipe;

the pouring pot comprises a shell and an inner container with a liquid level chamber, the shell is arranged on a base, a partition board is arranged in the liquid level chamber, the liquid level chamber is divided into a first containing cavity and a second containing cavity by the partition board, a communicating pipe which is communicated with the first containing cavity and the second containing cavity is arranged at the bottom end of the partition board, the bottom of the first containing cavity is connected with the drainage pipe, and the drainage pipe is communicated with the first containing cavity;

one end of the drainage tube, which is far away from the first cavity, is communicated with a cavity of the steel belt wheel belt type continuous casting device through a pouring nozzle;

the lead ingot cutting and forming machine comprises a machine body, the machine body comprises a cutting rack, a sliding seat is arranged on the cutting rack, a feeding hole along an X axis and a discharging hole along a Y axis are formed in the sliding seat, a pushing mechanism opposite to the discharging hole is arranged on the sliding seat, a cutter mechanism is arranged at the position, close to the discharging hole, of the sliding seat, the cutter mechanism comprises a cutter seat, a bottom cutter and side cutters, the side cutters are arranged at two ends of the cutter seat, the bottom cutter is arranged between the two side cutters, a sliding cover along the Z axis is arranged on the sliding seat, and a calibrating mechanism is arranged on the sliding cover.

Further, the ingot pushing device comprises a first ingot pushing device and a second ingot pushing device, the first ingot pushing device and the second ingot pushing device are respectively positioned at two sides of the casting blank conveying direction and are positioned at one feeding side of the lead ingot cutting and forming machine, and the second ingot pushing device and the lead ingot cutting and forming machine are positioned at the same side of the casting blank conveying direction;

the pushing direction L1 of the first ingot pushing device is perpendicular to the casting blank conveying direction; the pushing direction L2 of the second ingot pushing device is parallel to the casting blank conveying direction and is arranged corresponding to the feed inlet of the lead ingot cutting and forming machine;

the lead ingot cutting and forming machine also comprises a first conveying mechanism matched with the first ingot pushing device, wherein the first conveying mechanism is positioned between the second ingot pushing device and a feed inlet of the lead ingot cutting and forming machine;

a second conveying mechanism matched with the lead ingot cutting and forming machine is arranged outside the discharge port of the lead ingot cutting and forming machine;

the first ingot pushing device and the third ingot pushing device are positioned on the same side of the casting blank conveying direction and are sequentially arranged along the casting blank conveying direction;

the pushing direction L3 of the third ingot pushing device is perpendicular to the casting blank conveying direction, and a third conveying mechanism matched with the third ingot pushing device is arranged;

The stacking robot is located between the discharging end of the second conveying mechanism and the discharging end of the third conveying mechanism.

Further, the device also comprises a first pier-flat correcting machine matched with the second conveying mechanism and a second pier-flat correcting machine matched with the third conveying mechanism;

the first heading level corrector is provided with a first heading level correction space for the cut lead ingot to pass through, and the second heading level corrector is provided with a second heading level correction space for the original lead ingot to pass through.

Further, an adjusting mechanism for controlling the opening and closing degree of the communicating pipe is arranged on the liquid level chamber, the adjusting mechanism comprises a first plug, a lever mechanism and a floating ball, the floating ball is arranged in the first accommodating cavity, the first plug is arranged in the second accommodating cavity, the floating ball is connected with one end of the lever mechanism through a first connecting rod, the first plug is connected with the other end of the lever mechanism through a second connecting rod, and the first plug is matched with the communicating pipe.

Further, the communicating pipe comprises a liquid discharge pipe and a first valve body, a first cavity matched with the first plug is arranged on the first valve body, the first cavity is communicated with the liquid discharge pipe, liquid inlets are formed in the bottom, the circumference and the top of the first valve body, and the liquid inlets are communicated with the first cavity.

Further, a driving mechanism is arranged on the first accommodating cavity, a connecting rod is arranged at the output end of the driving mechanism, the driving mechanism can drive the connecting rod to move up and down, and a second plug for controlling the opening degree of the drainage tube is arranged at the lower end of the connecting rod.

Further, the bottom of first appearance chamber is provided with the second valve body, be provided with the second cavity with second end cap looks adaptation on the second valve body, second cavity and drainage tube intercommunication, the bottom, circumference and the top of second valve body all are provided with the leakage fluid dram, a plurality of leakage fluid dram and second cavity intercommunication.

Further, the steel belt wheel belt type continuous casting device comprises a continuous casting frame, a crystallization wheel, an upper belt wheel, a tensioning wheel train and a steel belt;

the crystallization device comprises a crystallization wheel, wherein an inner concave crystallization cavity is arranged on the outer cylindrical surface of the crystallization wheel, rims are arranged on two axial sides of the crystallization cavity, a bottom wall is arranged on the inner radial side of the crystallization cavity, and the rims and the bottom wall are both positioned on the crystallization wheel; the crystallization cavity comprises a crystallization section, the steel belt is stretched by the upper belt wheel and the tensioning wheel train and bypasses the crystallization wheel, and the crystallization section on the crystallization wheel is sealed by the steel belt to form the cavity; one end of the cavity is a casting port, and the other end is a blank pulling port; the upper belt wheel is positioned at the radial outer side of the cavity at the casting port; the outer side of the cavity is provided with a water cooling module;

One end of the pouring nozzle, which is far away from the drainage tube, is an open end, and the open end is positioned in the cavity and is matched with the outer contour of the crystallization cavity; the upper portion of open end has concave arc opening, arc opening with the outline looks adaptation of last band pulley.

Further, the upper surface of the arc-shaped opening of the pouring nozzle is provided with a continuous groove, a sealing strip is arranged in the groove, and the upper part of the sealing strip protrudes out of the upper surface of the arc-shaped opening and is matched with the outer contour of the upper belt wheel.

Further, the water cooling module comprises an inner ring cooling body and an outer ring cooling body, the inner ring cooling body is arranged on the inner side of the inner cylindrical surface of the bottom wall, and the outer ring cooling body is arranged on the outer side of the outer cylindrical surface of the steel belt forming the cavity; the inner ring cooling body and the outer ring cooling body are respectively provided with a hollow cavity and spray holes, the hollow cavities are communicated with a cooling liquid supply system, a plurality of spray holes are formed, the spray holes are uniformly distributed, and the spray directions of the spray holes face the cavity;

the water cooling module comprises a water cooling module upper section and a water cooling module lower section which are adjacently arranged, and the density of spray holes of the water cooling module upper section is greater than that of spray holes of the cooling body lower section.

Further, the straightening coding machine comprises a machine base, wherein a traction mechanism is arranged on the machine base and comprises a plurality of traction wheels which are arranged in a staggered mode up and down, and a first channel for a casting blank to pass through is formed among the traction wheels; the utility model discloses a casting blank casting machine, including the traction mechanism, the traction mechanism rear is provided with the coding mechanism, coding mechanism is including beating the code wheel and setting up and beating the code pinch roller in the code top, beat the code wheel and beat and form the second passageway that supplies the casting blank to pass through between the code pinch roller, be provided with the drive on the frame and beat code wheel pivoted actuating mechanism, the circumference of beating the code wheel is provided with a plurality of code nails.

Compared with the prior art, the invention has the beneficial effects that: the invention provides a lead ingot continuous casting production line, which reduces environmental pollution and improves lead ingot quality. The method has the advantages of accurate flow control, closed crystallization, instant shaping, reduction of oxidizing slag and automation, and also eliminates alloy waste and reduces the segregation phenomenon of the lead ingot. The whole production line mainly takes the closed type, has few open points, is extremely convenient for collecting smoke dust, can not pollute the environment, and belongs to clean environment-friendly equipment. The labor force of workers is reduced, and the quality of lead ingots is improved.

Drawings

Fig. 1 is a schematic view of one embodiment of a lead ingot continuous casting line according to the present invention;

fig. 2 is a schematic view of another embodiment of the lead ingot continuous casting line of the present invention;

FIG. 3 is a schematic view of the structure of the steel belt pulley belt type continuous casting apparatus of the present invention;

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

FIG. 5 is a schematic view of the mating of the rim, bottom wall, steel belt, upper pulley and nozzle;

FIG. 6 is a schematic view of the structure of the nozzle;

FIG. 7 is a schematic view of the construction of the pouring pot of the present invention;

FIG. 8 is a side view of FIG. 7;

FIG. 9 is a top view of FIG. 7;

FIG. 10 is a cross-sectional view taken along section line B-B of FIG. 9;

FIG. 11 is a cross-sectional view taken along section line C-C of FIG. 9;

FIG. 12 is a cross-sectional view of another embodiment of a pouring vessel of the present invention;

FIG. 13 is a schematic view of the structure of the drainage tube;

FIG. 14 is a cross-sectional view of FIG. 13;

fig. 15 is a schematic view of a communication pipe;

FIG. 16 is a cross-sectional view of FIG. 15;

FIG. 17 is a cross-sectional view of FIG. 16 with the first plug removed;

FIG. 18 is a schematic illustration of the connection of the second valve body to the drain tube;

FIG. 19 is a cross-sectional view of FIG. 18;

FIG. 20 is a cross-sectional view of FIG. 19 with a second plug removed;

FIG. 21 is a schematic diagram of the alignment code printer of the present invention;

FIG. 22 is a schematic diagram of another view of an alignment encoder;

FIG. 23 is a schematic illustration of a code wheel;

fig. 24 is a cross-sectional view of the lead ingot cutting and molding machine of the present invention;

fig. 25 is a schematic view of the lead ingot cutting and forming machine of the present invention;

FIG. 26 is an assembly view of the carriage, skid plate, cutter mechanism in an embodiment;

FIG. 27 is an assembly view of the cutter mechanism in an embodiment;

FIG. 28 is a front isometric exploded view of a side knife, bed knife in an embodiment;

FIG. 29 is a reverse side isometric exploded view of a side blade, bed blade in an example;

FIG. 30 is a schematic view of the construction of a bed knife in an embodiment;

FIG. 31 is a schematic view of the structure of a side cutter in an embodiment;

fig. 32 is an elevation view of a cut lead ingot;

fig. 33 is a bottom view of the cut lead ingot.

Reference numerals:

100-lead melting furnace;

101-lead conveying pipe;

200-pouring a pot;

201-a housing; 202, an insulating layer; 203-heating means; 204-an inner container; 205-drainage port; 206-a liquid level chamber; 207-a second cavity; 208-a first cavity; 209-communicating pipe; 210-a drain; 211-a first valve body; 212-a first cavity; 213-liquid inlet; 214-a temperature monitoring device; 215-a base; 216-separator; 217-lever mechanism; 218-floating ball; 219-a first connecting rod; 220-a second connecting rod; 221-a first plug; 222-a driving device; 223-screw rod; 224-a sleeve; 225-a hinge seat; 226-mounting plates; 227-a hand wheel; 228—a drive mechanism; 229-a connecting rod; 230-a second plug; 231-a second valve body; 232-a second cavity; 234-drain; 235-a first connection tube; 236-a second connecting tube; 237-quick connector; 238-male connector; 239-female connector; 240-a first mount; 241-a second mount; 242-loose-joint bolts; 243-loose joint nuts; 244-weight monitoring sensor;

300-a steel belt wheel belt type continuous casting device;

301-a continuous casting rack; 302-crystallization wheel; 303-crystallization chamber; 304-rim; 305-a bottom wall; 306-upper belt wheel; 307-steel strip; 308-drainage tube; 309-pouring nozzle; 310-sealing strips; 311-an inner ring cooling body; 312-an outer ring cooling body; 313-a water cooling module protective cover; 314-a dust collection device; 315-sealing the leakage-proof pad;

400-straightening a coding machine;

401-stand; 402-traction wheels; 403-coding pressing wheel; 404-coding wheel; 405-code nails; 406-a screw; 407-casting blank; 408-a driving wheel; 409-driven wheel; 410-a first stand; 411-a first swing bracket; 412-a first telescopic mechanism; 413-a second mount; 414-a second swing bracket; 415-a second telescopic mechanism;

500-shearing machine;

600-lead ingot cutting and forming machine;

601-a cutting frame; 602-a slide; 603-a slide plate; 604-push plate; 605-hydraulic cylinder; 606-a sliding cover; 607-a correction lever; 608—a first cylinder; 609-a second cylinder; 610-a platen; 611-bed knife; 612—bed knife gap; 613-a first cover plate; 614-side plates; 615-a second cover plate; 616—side cutters; 617-side knife notch; 618-a knife holder; 619-blanking hopper; 620-a correction disk; 621-sliding blocks; 622-slide rail; 623—a feed inlet; 624-lead ingot; 625-packing strap slot; 626-worker handling the gap;

700-stacking robot;

800-an online packer;

900-a first ingot pushing device;

1000-a second ingot pushing device;

1100-a first pier level corrector;

1200-a third ingot pushing device;

1300-a second pier level corrector;

1400-first conveying mechanism;

1500-a second conveying mechanism;

1600-third conveying mechanism.

Detailed Description

The invention will be further described with reference to fig. 1 to 33 and examples.

The lead ingot continuous casting production line comprises a lead melting furnace 100, a pouring pot 200, a steel belt wheel belt type continuous casting device 300, a straightening coding machine 400, a shearing machine 500, a lead ingot cutting and forming machine 600, a stacking robot 700 and an online packing machine 800; the lead melting furnace 100 is communicated with the pouring pot 200 through a lead conveying pipe 101.

Specifically, the pouring pot 200 includes a housing 201 and a liner 204 with a liquid level chamber 206, the housing 201 is mounted on a base 215, a partition 216 is disposed in the liquid level chamber 206, the partition 216 divides the liquid level chamber 206 into a first containing cavity 208 and a second containing cavity 207, a communicating pipe 209 communicating the first containing cavity 208 and the second containing cavity 207 is disposed at the bottom end of the partition 216, the bottom of the first containing cavity 208 is connected with a drainage pipe 308, and the drainage pipe 308 is communicated with the first containing cavity 208; the end of the draft tube 308 remote from the first cavity 208 communicates with the cavity of the steel belt pulley continuous casting apparatus 300 through a nozzle 309.

Specifically, the lead ingot cutting and forming machine 600 comprises a machine body, the machine body comprises a cutting machine frame 601, a sliding seat 602 is arranged on the cutting machine frame 601, a feeding hole 623 along an X axis and a discharging hole along a Y axis are formed in the sliding seat 602, a pushing mechanism opposite to the discharging hole is arranged on the sliding seat 602, a cutter mechanism is arranged at the position, close to the discharging hole, of the sliding seat 602, the cutter mechanism comprises a cutter seat 618, a bottom cutter 611 and side cutters 616, the side cutters 616 are arranged at two ends of the cutter seat 618, the bottom cutter 611 is arranged between the two side cutters 616, a sliding cover 606 along the Z axis is arranged on the sliding seat 602, and a calibrating mechanism is arranged on the sliding cover 606.

The ladle 200 is installed above the steel belt pulley type continuous casting device 300, and the steel belt pulley type continuous casting device 300, the straightening coding machine 400, the shearing machine 500, the lead ingot cutting and forming machine 600, the stacking robot 700 and the online packing machine 800 are sequentially arranged from front to back.

The lead material is melted into a liquid state in the lead melting furnace 100, and an alloy is added to the lead material and stirred uniformly to form a lead alloy liquid. The lead alloy liquid in the lead melting furnace 100 flows into the inner cavity of the pouring pot 200 through the lead conveying pipe 101. The lead alloy liquid is introduced into the cavity of the steel belt wheel belt type continuous casting device 300 through the casting nozzle by the drainage structure. And cooling the lead alloy liquid in the cavity through a water cooling module, and rapidly crystallizing the lead alloy liquid to form a solid casting blank and discharging the solid casting blank from a blank drawing port. The straightening and coding machine 400 straightens and codes a casting blank to form a linear billet with a production number, the shearing machine 500 shears the linear billet into a lead ingot with a specified length, the lead ingot is cut into a required shape by the lead ingot cutting and forming machine 600, and the stacking robot 700 stacks the cut lead ingot for subsequent operation and finally packages the lead ingot by the online packing machine 800. The method has the advantages of accurate flow control, closed crystallization, instant shaping, reduction of oxidizing slag and automation, and also eliminates alloy waste and reduces the segregation phenomenon of the lead ingot. The whole production line mainly takes the closed type, has few open points, is extremely convenient for collecting smoke dust, can not pollute the environment, and belongs to clean environment-friendly equipment. The labor force of workers is reduced, and the quality of lead ingots is improved.

In order to expand the application range of the production line, it is preferable that the production line further comprises a first ingot pushing device 900 and a second ingot pushing device 1000, wherein the first ingot pushing device 900 and the second ingot pushing device 1000 are respectively positioned at two sides of the casting blank conveying direction and are positioned at one side of the lead ingot cutting and forming machine 600 for feeding, and the second ingot pushing device 1000 and the lead ingot cutting and forming machine 600 are positioned at the same side of the casting blank conveying direction; the pushing direction L1 of the first ingot pushing device 900 is perpendicular to the casting blank conveying direction; the pushing direction L2 of the second ingot pushing device 1000 is parallel to the casting blank conveying direction and is arranged corresponding to the feeding port of the lead ingot cutting and forming machine 600; the first conveying mechanism 1400 is matched with the first ingot pushing device 900, and the first conveying mechanism 1400 is positioned between the second ingot pushing device 1000 and the feed inlet of the lead ingot cutting and forming machine 600; a second conveying mechanism 1500 matched with the lead ingot cutting and forming machine 600 is arranged outside the discharge hole; the ingot pushing device further comprises a third ingot pushing device 1200, wherein the first ingot pushing device 900 and the third ingot pushing device 1200 are positioned on the same side of the casting blank conveying direction and are sequentially arranged along the casting blank conveying direction; the pushing direction L3 of the third ingot pushing device 1200 is perpendicular to the casting blank conveying direction, and a third conveying mechanism 1600 is provided for cooperation use; the stacking robot 700 is located between the discharge end of the second conveyor 1500 and the discharge end of the third conveyor 1600.

When it is necessary to produce cut lead ingots, the shearing machine 500 shears the straight billets into lead ingots of a prescribed length, the first ingot pushing device 900 pushes the lead ingots onto the first conveying mechanism 1400 along the pushing direction L1, and the second ingot pushing device 1000 pushes the lead ingots into the lead ingot cutting and forming machine 600 along the pushing direction L2 to cut the lead ingots into a desired shape. The cut lead ingots are output through the second conveying mechanism 1500 and are stacked by the stacking robot 700 so as to be packed by the online packing machine 800. When an original lead ingot needs to be produced, the shearing machine 500 shears the straight-line billet into a lead ingot with a specified length, the lead ingot is conveyed to the third ingot pushing device 1200 along the casting blank conveying direction, the third ingot pushing device 1200 pushes the lead ingot onto the third conveying mechanism 1600 along the pushing direction L3, the original lead ingot is output through the third conveying mechanism 1600, and then the lead ingot is stacked by the stacking robot 700 so as to be packaged by the online packaging machine 800. The production of the cut lead ingot and the production of the original lead ingot are not performed simultaneously.

In order to solve the above technical problems, the lead ingot preferably further comprises a first heading correction machine 1100 used in cooperation with the second conveying mechanism 1500, and a second heading correction machine 1300 used in cooperation with the third conveying mechanism 1600; the first leveling machine 1100 has a first leveling space for passing a cut lead ingot, and the second leveling machine 1300 has a second leveling space for passing an original lead ingot. By arranging the first upsetting corrector 1100, burrs and flashes at two ends of the cut lead ingot are flattened so as to obtain the cut lead ingot with higher molding quality; while correcting the position of the cut lead ingot to facilitate the gripping and stacking operations of the stacking robot 700. The burrs and the flash edges at the two ends of the original lead ingot are leveled by arranging a second upsetting corrector 1300 so as to obtain the original lead ingot with higher molding quality; while correcting the position of the original lead ingot to facilitate the gripping and stacking operations of the stacking robot 700.

Preferably, the first conveying mechanism 1400, the second conveying mechanism 1500, and the third conveying mechanism 1600 are all roller conveying structures.

Preferably, the first ingot pushing device 900, the second ingot pushing device 1000, and the third ingot pushing device 1200 may be electric push rods, hydraulic rods, and the like.

The palletizing robot 700 and the online baling press 800 are both prior art.

As shown in fig. 3 to 6, a steel belt wheel type continuous casting apparatus 300 specifically includes a continuous casting frame 301, a crystallization wheel 302, an upper belt pulley 306, a tension train, and a steel belt 307; the crystallization wheel 302 is provided with a concave crystallization cavity 303 on the outer cylindrical surface, rims 304 are arranged on two sides of the crystallization cavity 303 in the axial direction, a bottom wall 305 is arranged on the inner side of the crystallization cavity 303 in the radial direction, and the rims 304 and the bottom wall 305 are both positioned on the crystallization wheel 302; the crystallization cavity 303 comprises a crystallization section, the steel belt 307 is stretched by the upper belt pulley 306 and the tensioning wheel train and bypasses the crystallization wheel 302, and the crystallization section on the crystallization wheel 302 is sealed by the steel belt 307 to form a cavity; one end of the cavity is a casting port, and the other end is a blank pulling port; the upper pulley 306 is positioned radially outward of the cavity at the sprue; the outer side of the cavity is provided with a water cooling module; the end of the pouring nozzle 309 far away from the drainage tube 308 is an open end, and the open end is located in the cavity and is adapted to the outer contour of the crystallization cavity 303; the upper portion of the open end has a concave arcuate opening that matches the outer contour of the upper pulley 306.

The above-mentioned "contour matching" means shape matching and size matching, that is, the bottom surface and the outer side surface of the open end of the nozzle 309 are respectively attached to the bottom wall 305 and the rim 304, and the upper surface of the arc-shaped opening of the nozzle 309 is attached to the steel belt 307 on the upper pulley 306. That is, the nozzle 309, steel band 307, bottom wall 305 and rim 304 cooperate to cover a relatively large area of molten lead at the cavity gate, thus making the gate relatively airtight.

The continuous casting machine frame 301 provides mounting support for the crystallization wheel 302, the upper pulley 306, and the tensioning train. In operation of the device, the upper pulley 306 and the tensioning train rotate with rotation of the drive pulley therein, as does the steel belt 307. The lead liquid in the pouring pot 200 is drained to a pouring nozzle 309 through a drainage tube 308, and the pouring nozzle 309 injects the lead liquid into a cavity at the pouring nozzle. The crystallization wheel 302 continuously rotates at a constant speed, and the water cooling module cools the steel belt 307 forming the cavity, the rim 304 and the bottom wall 305 outside the crystallization cavity 303, so that the lead liquid in the cavity is cooled and molded, and the molded lead blank finished product is pulled out from the blank pulling opening. The casting nozzle is relatively airtight, so that the lead slag amount formed by oxidizing the lead liquid and the lead slag amount entering the cavity are reduced, the quality of a finished lead blank product is improved, and the probability of the lead slag blocking the cavity is reduced.

The upper surface of the arcuate opening in the nozzle 309 engages and moves relative to the steel strip 307 on the upper pulley 306, which tends to cause the nozzle 309 and the steel strip 307 to wear too quickly and even to break, affecting the quality of the finished lead blank. Preferably, a continuous groove is formed on the upper surface of the arc opening of the nozzle 309, and a sealing strip 310 is disposed in the groove, and the upper portion of the sealing strip 310 protrudes out of the upper surface of the arc opening and is adapted to the outer contour of the upper belt pulley 306. The sealing strip 310 is assembled with the groove in an interference mode, and the sealing strip 310 is prevented from falling off in the production process, so that the production efficiency is prevented from being influenced. If necessary, the sealing strip 310 and the pouring nozzle 309 are connected by adopting a bolt connection or a clamping connection. The upper surface of the sealing strip 310 is attached to the steel belt 307 on the upper pulley 306. The sealing strip 310 needs to be able to withstand 480 ℃ to meet production requirements, and also needs to have a certain wear resistance to slow down the wear speed of the sealing strip 310 and reduce the replacement times. The sealing strip 310 may be made of various materials, such as ceramic fiber, asbestos fiber, or graphite product.

Because the graphite has better high temperature resistance and wear resistance, good processing performance, stable chemical property and good lubricating function. Therefore, it is further preferable that the sealing strip 310 is made of graphite, which is resistant to high temperature. Effectively reducing the friction between the upper surface of the arcuate opening of the nozzle 309 and the steel band 307 on the upper pulley 306, slowing the wear rate of the nozzle 309 and the steel band 307. The graphite high temperature resistant material comprises a graphite material and can resist the high temperature of 480 ℃. That is, the sealing strip 310 may be formed by processing a graphite plate, or may be a direct application of a graphite product such as a graphite packing. The graphite packing is mainly formed by finely weaving reinforced graphite wires such as various reinforced fibers and metal wires serving as raw materials, is suitable for dynamic sealing under high-temperature and high-pressure conditions, and is convenient to detach and low in cost.

Preferably, the bottom surface of the nozzle 309 is further provided with a sealing and leakage preventing pad 315, and the sealing and leakage preventing pad 315 is an aluminum silicate fiber board. When the nozzle 309 is inserted into the cavity, the sealing and leakage preventing pad 315 contacts with the inner bottom wall of the crystallization cavity 303 to prevent the molten lead from flowing back out of the gap between the bottom surface of the nozzle 309 and the crystallization cavity 303, and also to block the outside air to prevent the molten lead from oxidizing. The sealing and leakage preventing pad 315 can be made of high temperature resistant materials such as asbestos, and compared with asbestos, aluminum silicate fiber boards have better heat preservation and heat insulation performances. The sealing and leakage preventing pad 315 is made of aluminum silicate fiber plates, so that the high-temperature condition during lead liquid casting can be met, and abrasion and scratch of the pouring nozzle 309 and the inner wall of the crystallization cavity 303 can be prevented.

The drainage tube 308 is used for guiding the lead liquid in the pouring pot 200 into the pouring nozzle 309, so that lead slag is prevented from being formed by the contact and oxidation of the lead liquid with air in the process. The pouring pot 200 and the drainage tube 308 can be of an integrally formed integral structure, and can be welded, connected and bolted. Considering that lead liquid is easily oxidized in the pouring pot 200 to form lead slag, and thus the drainage tube 308 is blocked, the drainage tube 308 needs to be replaced in time in order not to affect production. Preferably, the drain tube 308 is flanged to the pot 200. Facilitating the assembly and disassembly of the drainage tube 308. The nozzle 309 is used to inject molten lead from the nozzle into the cavity. The drainage tube 308 and the pouring nozzle 309 can be of an integrally formed integral structure, and can be connected in a connecting mode such as welding, flange matching, sealing ring and the like.

Preferably, the casting nozzle is positioned at the upper end of the cavity. The lead liquid entering the die cavity through the casting nozzle exerts pressure on uncured lead liquid below the die cavity by means of self gravity, so that the discharge of gas in the lead liquid is facilitated, the internal structure of the cured lead blank is more compact, and the quality of a lead blank finished product is improved. As a further preference, a vertical plane formed through the axis of the crystallization wheel 302 is also included, the casting nozzle being located on the vertical plane.

The pressure born by the lower part of the pouring pot 200 is related to the liquid level height of the lead liquid in the pouring pot, the higher the liquid level height is, the higher the pressure born by the lower part of the pouring pot 200 is, and the higher the pressure exerted by the lead liquid injected into the cavity through the pouring gate on the lead which is not completely solidified and molded at the lower part is, so that the quality of a lead blank finished product is improved. As a further preferred aspect, the ladle 200 is positioned above the nozzle, and the draft tube 308 is disposed obliquely downward in a direction toward the nozzle. The lead liquid in the pouring pot 200 is positioned above the pouring gate, and the injection of the lead liquid into the cavity by the pouring pot 200 is a moving process from high to low, and the lead liquid applies larger pressure to the lead liquid below the pouring pot by virtue of self gravity and acceleration, so that the structure of a finished lead blank product is more compact.

If the inclination angle of the drainage tube 308 is too large, the lead liquid is easy to splash or overflow the cavity when flowing from the nozzle 309 to the casting nozzle; if the inclination angle of the drainage tube 308 is too small, the flow of the lead liquid and the quality improvement of the lead blank finished product are not facilitated. Preferably, the angle between the drainage tube 308 and the horizontal plane is 10 ° to 20 °. Through the comparison of casting data of the production site, when the included angle between the drainage tube 308 and the horizontal plane is within the range of 10-20 degrees, the lead liquid cannot overflow the cavity. The casting effect is optimal when the draft tube 308 is at an angle of 15 ° to the horizontal.

Because of the higher density of lead, the lead billet is more likely to deform by its own weight when pulled out from the billet-drawing port. Preferably, the central angle corresponding to the cavity is larger than or equal to 180 degrees. Therefore, the temperature of the lead blank can be reduced at the position of the cavity close to the blank drawing opening, the strength of the lead blank is further increased, and the deformation of the lead blank is avoided.

Preferably, the water cooling module comprises an inner ring cooling body 311 and an outer ring cooling body 312, the inner ring cooling body 311 is disposed inside the inner cylindrical surface of the bottom wall 305, and the outer ring cooling body 312 is disposed outside the outer cylindrical surface of the steel band 307 forming the cavity; the inner ring cooling body 311 and the outer ring cooling body 312 are respectively provided with a hollow cavity and spray holes, the hollow cavity is communicated with a cooling liquid supply system, the spray holes are provided with a plurality of spray holes, and the spray holes are uniformly distributed and the spray directions of the spray holes face the cavity.

The inner ring cooling body 311 and the outer ring cooling body 312 may be independent structures, or may be integrally formed integral structures; the hollow cavities inside the inner ring cooling body 311 and the outer ring cooling body 312 can be mutually communicated, or can be divided into a plurality of hollow cavities which are mutually independent and not communicated. The inner ring cooling body 311 and the outer ring cooling body 312 can have various shapes, preferably, the inner ring cooling body 311 and the outer ring cooling body 312 have arc structures, and the corresponding central angles are the same as the corresponding central angles of the cavities. The lead liquid in the cavity is easy to be rapidly cooled and molded, the cooled and molded lead blank is further cooled, and the strength of a lead blank finished product is improved.

When the water cooling module works, the cooling liquid in the cooling liquid supply system flows into the hollow cavities of the inner ring cooling body 311 and the outer ring cooling body 312, meanwhile, the cooling liquid supply system also provides certain pressure for the cooling liquid, and the cooling liquid is sprayed onto the surfaces of the rim 304, the bottom wall 305 and the steel belt 307 through spray holes. And further cooling and forming of the lead liquid in the cavity and further cooling of the formed lead blank are realized.

The too slow cooling and molding speed of lead in the die cavity can lead to uneven distribution of each component element in the lead blank during crystallization and segregation. The cooling effect can be controlled by controlling the flow of the cooling liquid in the spray holes, and the larger the number of the spray holes on the water cooling module is, the larger the flow of the cooling liquid is, and the better the cooling effect is. Preferably, the water cooling module comprises an upper water cooling module section and a lower water cooling module section which are adjacently arranged, and the density of spray holes of the upper water cooling module section is greater than that of spray holes of the lower cooling body section. The upper section of the water cooling module rapidly cools the corresponding upper section cavity, the lead liquid in the upper section cavity is rapidly cooled and molded, the cooled and molded lead blank moves into the lower section cavity along with the rotation of the crystallization wheel 302, and the lower section of the water cooling module continuously cools the lead blank to the specified temperature to form a lead blank finished product.

The cooling effect can also be controlled by controlling the flow rate of the cooling liquid in the spray hole, and the higher the water pressure is, the faster the flow rate of the cooling liquid is, and the better the cooling effect is. Preferably, the upper section of the water cooling module and the lower section of the water cooling module are respectively provided with mutually independent hollow cavities, each hollow cavity respectively controls the water pressure, and the water pressure of the upper section of the water cooling module is greater than that of the lower section of the water cooling module.

Preferably, the cooling holes of the inner ring cooling body 311 and the outer ring cooling body 312 are provided with spray heads, and the openings of the spray heads face the cavity structure. The injection direction and the injection distance of the cooling liquid are convenient to control, and the cooling effect on the cavity is ensured.

The sprayed cooling liquid is easily splashed out of the equipment after being refracted by the rim 304, the inner cylindrical surface of the bottom wall 305 and the outer side surface of the steel belt 307, so that accumulated water is caused on the production site. Preferably, the water cooling module protection cover 313 is further arranged outside the water cooling module. The water-cooling module protection cover 313 is used for preventing the cooling liquid from splashing everywhere, and draining the cooling liquid to the designated position.

The casting nozzle is not completely sealed, lead smoke is easy to generate, the environment is polluted, and the physical health of on-site operators is affected. Preferably, a dust suction device 314 is also arranged above the casting nozzle. The dust collection device 314 comprises a dust collection cover and a lead smoke processor, and lead smoke collected by the dust collection cover enters the lead smoke processor through a connecting pipeline to be processed. The method is environment-friendly, and ensures the physical health of production site workers.

As shown in fig. 7 to 20, the pouring pot 200 is shown in fig. 7 to 20, wherein the liquid level chamber 206 is used for storing lead alloy liquid, the material of the liner 204 is carbon structural steel, when the carbon structural steel and the lead alloy liquid are sent out, a lead-iron alloy layer is formed, the lead-iron alloy layer protects the carbon structural steel, the liquid level chamber 206 is internally provided with a baffle plate 216, the baffle plate 216 is fixedly connected to the inner wall of the liquid level chamber 206 along the upper edge to the bottom of the liquid level chamber 206, the liquid level chamber 206 is divided into a first containing cavity 208 and a second containing cavity 207 by the arrangement, the second containing cavity 207 is communicated with a melting furnace in use, and molten lead alloy liquid in the melting furnace flows into the second containing cavity 207; at this time, the surface of the lead alloy liquid entering the second containing cavity 207 forms oxide slag, and the oxide slag can isolate the residual lead alloy liquid in the second containing cavity 207 from contacting with air; the bottom end of the partition plate 216 is provided with a communicating pipe 209 which is communicated with the first accommodating cavity 208 and the second accommodating cavity 207, the communicating pipe 209 can be a high-temperature-resistant metal pipe, lead alloy liquid in the second accommodating cavity 207 can enter the first accommodating cavity 208 through the communicating pipe 209, oxidizing slag can be formed on the surface of the lead alloy liquid entering the first accommodating cavity 208, and the oxidizing slag can isolate the residual lead alloy liquid in the first accommodating cavity 208 from contacting with air; after the first cavity 208 and the second cavity 207 are filled with the lead alloy liquid, the lead alloy liquid in the first cavity 208 enters a pouring nozzle 309 through a drainage tube 308, and the pouring nozzle 309 enters the lead alloy liquid into a continuous casting machine or a crystallization wheel; in the use process, the level of the lead alloy liquid in the first containing cavity 208 and the second containing cavity 207 should be higher than the level of the communicating pipe 209, so that contact with air can be avoided when the lead alloy liquid flows into the first containing cavity 208 from the second containing cavity 207 and flows into the drainage pipe 308 from the first containing cavity 208, the generation amount of oxidizing slag is reduced, the alloy content in the formed lead alloy ingot is ensured to be sufficient, and the quality of the lead alloy is improved.

Referring to fig. 12, as another embodiment, the communicating tube 209 may be a communicating channel under the partition 216, and in manufacturing, a square, trapezoid or circular hole is cut directly at the bottom end of the partition 216, so that the lead alloy liquid in the second cavity 207 can smoothly pass through the partition 216 and enter the first cavity 208. Also, during installation, the partition 216 may be spaced a distance from the inner wall of the liner 204, so that the lead alloy liquid in the second chamber 207 may smoothly enter the first chamber 208 through the partition 216. The communicating pipe 209 is in the bottom of baffle 216, when using, need guarantee that the liquid level of the plumbum alloy liquid in first appearance chamber 208 and the second appearance chamber 207 is higher than communicating pipe 209's highest point department, guarantees that the oxidation slag that floats in plumbum alloy liquid surface in the second appearance chamber 207 can not enter into first appearance chamber 208, can guarantee simultaneously to avoid with the air contact when plumbum alloy liquid flows into first appearance chamber 208 from the second appearance chamber 207, reduces the volume of formation of oxidation slag.

Because the specific heat of the lead alloy liquid is low, the lead alloy liquid is easy to solidify when the lead alloy liquid flows through the drainage tube 308, which leads to easy blockage of the drainage tube 308 or frequent disassembly and replacement of the pipeline when the liquid level chamber 206 is replaced to provide the lead alloy liquid; further, referring to fig. 8, 10, 13 and 14, the drainage tube 308 includes a first connecting tube 235 and a second connecting tube 236 that are connected, the first connecting tube 235 and the second connecting tube 236 are connected through a quick connector 237, the quick connector 237 includes a male connector 238 and a female connector 239, the male connector 238 is fixedly connected with the first connecting tube 235 coaxially, the female connector 239 is fixedly connected with the second connecting tube 236 coaxially, the male connector 238 is inserted into the female connector 239, a first mounting seat 240 is provided in the circumferential direction of the male connector 238, a second mounting seat 241 that is matched with the first mounting seat 240 is provided in the circumferential direction of the female connector 239, a loose-joint bolt 242 is hinged on the first mounting seat 240, a mounting groove is provided on the second mounting seat 241, the loose-joint bolt 242 is arranged in the mounting groove in a penetrating manner, and a loose-joint nut 243 is provided at the end of the loose-joint bolt 242. Wherein, the male connector 238 is conical, and the female connector has a conical inner cavity, so that the male connector 238 and the female connector can be quickly abutted, the mounting groove can be a U-shaped groove, the mounting groove extends along the radial direction of the female connector, when the connector needs to be disassembled, the nut is unscrewed, the loose joint bolt 242 rotates around the first mounting seat 240, the loose joint bolt 242 is separated from the mounting groove, the male connector 238 and the female connector 239 are separated, and then the drainage tube 308 is cleaned or quickly replaced.

Further, referring to fig. 11, an adjusting mechanism for controlling the opening and closing degree of the communicating pipe 209 is disposed on the liquid level chamber 206, the adjusting mechanism includes a first plug 221, a lever mechanism 217, and a float ball 218, the float ball 218 is disposed in the first accommodating cavity 208, the first plug 221 is disposed in the second accommodating cavity 207, one end of the float ball 218 and one end of the lever mechanism 217 are connected through a first connecting rod 219, the first plug 221 and the other end of the lever mechanism 217 are connected through a second connecting rod 220, and the first plug 221 is adapted to the communicating pipe 209. The density of the floating ball 218 is smaller than that of the lead alloy liquid, so that the floating ball 218 can float on the surface of the lead alloy liquid, when the liquid level of the lead alloy liquid in the first accommodating cavity 208 is reduced, the floating ball 218 is reduced, and then the first connecting rod 219 is driven to move downwards, under the action of the lever mechanism 217, the second connecting rod 220 is driven to move upwards, and then the first plug 221 is driven to move upwards, finally the opening of the communicating pipe 209 is enabled to be larger, the amount of the lead alloy liquid flowing into the first accommodating cavity 208 from the second accommodating cavity 207 is increased, and the liquid level of the lead alloy liquid in the first accommodating cavity 208 is enabled to reach dynamic balance.

Further, referring to fig. 15 to 17, the communicating pipe 209 includes a drain pipe 210 and a first valve body 211, a first cavity 212 adapted to the first plug 221 is disposed on the first valve body 211, the first cavity 212 is communicated with the drain pipe 210, and liquid inlets 213 are disposed at the bottom, the circumferential direction and the top of the first valve body 211, and a plurality of liquid inlets 213 are communicated with the first cavity 212.

The first valve body 211 is mounted at the bottom of the second cavity 207, and when in use, the whole of the first valve body is completely immersed in the lead alloy liquid, the first cavity 212 is communicated with the liquid discharge pipe 210, and the liquid inlet 213 is communicated with the first cavity 212, so that the lead alloy liquid can enter the first cavity 212 through the liquid inlet 213 and then enter the first cavity 208 through the liquid discharge pipe 210. The bottom, the circumference and the top of the first valve body 211 are all provided with liquid inlets 213, and the flow is synchronously controlled or opened and closed by controlling the up-and-down movement of the first plug 221, so that the first valve body 211 is not easy to be blocked due to the large number of the liquid inlets 213. In the process of upward movement of the first plug 221, the liquid inlet 213 at the bottom of the first valve body 211 is first opened, and the opening is the largest, so that the lead alloy liquid at the bottom of the second cavity 207 can be discharged, and the lead alloy liquid is prevented from being deposited at the bottom of the second cavity 207. The whole first valve body 211 is immersed in the lead alloy liquid, the peripheral temperature is stable, the first valve body 211 is not easy to be blocked by the crystallized lead alloy liquid, and the first plug 221 is influenced to move up and down.

In order to control the flow rate of the lead alloy liquid at the nozzle 309, further, referring to fig. 9 and 10, a driving mechanism 228 is disposed on the first cavity 208, a connecting rod 229 is disposed at an output end of the driving mechanism 228, the driving mechanism 228 can drive the connecting rod 229 to move up and down, and a second plug 230 for controlling the opening of the drainage tube 308 is disposed at a lower end of the connecting rod 229.

The driving mechanism 228 may be a screw lifter, an electric push rod or a hydraulic cylinder, the connecting rod 229 is fixedly connected with the output end of the driving mechanism 228, the driving mechanism 228 is utilized to drive the connecting rod 229 to move up and down so as to drive the second plug 230 to move up and down, and then the opening degree of the drainage tube 308 is controlled, so that the control of the flow rate of the lead alloy liquid at the pouring nozzle 309 is realized.

Further, referring to fig. 18 to 20, a second valve body 231 is disposed at the bottom of the first accommodating cavity 208, a second cavity 232 adapted to the second plug 230 is disposed on the second valve body 231, the second cavity 232 is communicated with the drainage tube 308, drain ports 234 are disposed at the bottom, the circumferential direction and the top of the second valve body 231, and a plurality of drain ports 234 are communicated with the second cavity 232.

The second valve body 231 is mounted at the bottom of the first cavity 208, the second valve body 231 and the first valve body 211 have the same structure, and when in use, the whole of the second valve body 231 is completely immersed in the lead alloy liquid, the second cavity 232 is communicated with the drainage tube 308, and the liquid drain port 234 is communicated with the second cavity 232, so that the lead alloy liquid can enter the second cavity 232 through the liquid drain port 234, and then enter the pouring nozzle 309 through the drainage tube 308. The bottom, circumference and the top of second valve body 231 all are provided with leakage fluid dram 234, and through control second end cap 230 reciprocates synchronous control flow size or switching, because leakage fluid dram 234 quantity is many, can guarantee to have plumbous alloy liquid circulation all the time in the second valve body 231, at the in-process that second end cap 230 upwards moved, be located the leakage fluid dram 234 of second valve body 231 bottom at first and be opened, and the aperture is biggest, can discharge plumbous alloy liquid of first appearance chamber 208 bottom, avoids plumbous alloy liquid to deposit in first appearance chamber 208 bottom. The second valve body 231 is immersed in the lead alloy liquid, the peripheral temperature is stable, and the second cavity 232 is not easy to be blocked by the crystallized lead alloy liquid, so that the second plug 230 is influenced to move up and down.

In order to monitor the flow rate at the nozzle 309 in real time, a vision system is further provided on the liquid level chamber 206 for monitoring the flow rate at the nozzle 309. The vision system may employ a camera to transmit the camera's image signal to a computer, and when flow control at the nozzle 309 is desired, a signal is sent, and the drive mechanism adjusts the opening of the draft tube 308.

The lead alloy liquid can have heat loss in the flowing process, further referring to fig. 7 and 8, the liquid level chamber 206 is provided with a temperature monitoring device 214, an insulation layer 202 is disposed between the inner container 204 and the outer shell 201, and a heating device 203 is disposed between the insulation layer 202 and the inner container 204. The temperature detection device can adopt a thermal imager or an electronic thermometer, the heat insulation layer 202 can adopt glass wool or rock wool, the heating device 203 can adopt an electric heating wire, when the temperature detection device 214 detects that the temperature of the lead alloy liquid in the liquid level chamber 206 is reduced, a signal is sent, and the heating device 203 starts to work to heat the lead alloy liquid.

In order to be able to know the weight of the lead alloy liquid in the liquid level chamber 206 in real time, further, referring to fig. 7, a weight monitoring sensor 244 for measuring the weight of the lead alloy liquid in the liquid level chamber 206 is disposed below the base 215. The weight monitoring sensor 244 detects a weight T at the beginning of use of the ladle 200, detects a weight T1 after the injection of the lead alloy liquid into the liquid level chamber 206, the weight of the lead alloy liquid is T1-T, and prompts a worker to inject the lead alloy liquid in the melting furnace into the liquid level chamber 206 when the weight of the lead alloy liquid drops below a set value.

In order to be able to adjust the position of the nozzle 309, which is convenient and better in contact with the crystallization wheel or the continuous casting machine, further, referring to fig. 7 and 8, one side of the base 215 is hinged with the housing 201, and the other side of the base 215 is provided with a driving device 222 for driving the liquid level chamber 206 to tilt toward the nozzle 309 side. The driving means 222 may employ a hydraulic cylinder or an electric screw 223.

Further, referring to fig. 7, the driving device 222 includes a screw rod 223 hinged to the base 215, a sleeve 224 capable of moving up and down relative to the screw rod 223 is sleeved on the screw rod 223, a hinge seat 225 is provided on the housing 201, a mounting plate 226 is hinged on the hinge seat 225, the sleeve 224 passes through the mounting plate 226 and is rotatably connected with the mounting plate 226, and a hand wheel 227 is provided at the upper end of the sleeve 224. The inner wall of the sleeve 224 is provided with an internal thread matched with the screw rod 223, a worker rotates the hand wheel 227 to drive the sleeve 224 to rotate, the sleeve 224 moves up and down relative to the screw rod 223 under the action of the screw rod 223 and the internal thread, and then the liquid level chamber 206 is driven to tilt towards the pouring nozzle 309, so that the position of the pouring nozzle 309 can be better adjusted.

After the casting is completed, the lead alloy liquid in the liquid level chamber 206 needs to be discharged, wherein the lead alloy liquid in the first accommodating cavity 208 can flow out through the drainage pipe 308, and in order to discharge the lead alloy liquid in the second accommodating cavity 207, further, referring to fig. 11, a drainage port 205 is arranged on the side wall of the second accommodating cavity 207.

As shown in fig. 21 to 23, specifically, the alignment coding machine 400 includes a stand 401, a traction mechanism is disposed on the stand 401, the traction mechanism includes a plurality of traction wheels 402 that are staggered up and down, and a first channel for passing a casting blank 407 is formed between the traction wheels 402; the rear of the traction mechanism is provided with a coding mechanism, the coding mechanism comprises a coding wheel 404 and a coding pressing wheel 403 arranged above the coding wheel, a second channel for a casting blank 407 to pass through is formed between the coding wheel 404 and the coding pressing wheel 403, a driving mechanism for driving the coding wheel 404 to rotate is arranged on the base 401, and a plurality of coding nails 405 are arranged on the circumference of the coding wheel 404.

The traction wheels 402 are used for traction of the casting blank 407 into a second channel formed between the coding pinch roller 403 and the coding wheel 404, the plurality of traction wheels 402 are arranged in an up-down staggered mode, so that the transportation of the casting blank 407 is more stable, the first channel is matched with the casting blank 407, namely, the height of the first channel is the same as that of the casting blank 407, the casting blank 407 can smoothly pass through the first channel, and the fact that the traction power is provided by the traction wheels 402 below, the traction wheels 402 below are driven to rotate by a motor, and the casting blank 407 is pushed to move forwards is required to be explained; the rear of the traction mechanism is provided with a coding mechanism, the rear of the coding mechanism is determined according to the moving direction of the casting blank 407, the casting blank 407 firstly passes through the traction mechanism and then passes through the coding mechanism, a second channel for the casting blank 407 to pass through is formed between the coding wheel 404 and the coding pinch roller 403, the second channel is matched with the casting blank 407, namely, the height of the second channel is the same as that of the casting blank 407, in the use process, the distance from the upper surface of the coding nail 405 to the coding pinch roller 403 is smaller than that of the casting blank 407, so that marks of the coding nail 405 can be left on the casting blank 407, the driving mechanism is used for driving the coding wheel 404 to rotate, the rotating speed of the coding wheel 404 during coding is the same as that of the casting blank 407, and the situation of unclear marks is avoided. The upper surface of the code nail 405 far away from the code wheel 404 is a code printing surface, and numbers or letters are arranged on the code printing surface, and when the code printing surface is contacted with the casting blank 407, the numbers or letters are printed on the casting blank 407.

In order to adjust the distance from the upper surface of the code nail 405 to the coding pinch roller 403 and further adjust the depth of the mark on the casting blank 407, further, a first support 410 is arranged on the stand 401, a first swinging support 411 is hinged on the first support 410, the coding pinch roller 403 is installed on the first swinging support 411, and a first telescopic mechanism 412 is arranged between the end part of the first swinging support 411, which is far away from the first support 410, and the stand 401. The first swinging bracket 411 can swing relative to the first support 410, and along with the up-and-down movement of the first telescopic mechanism 412, the coding pinch roller 403 installed on the first swinging bracket 411 can be close to or far away from the coding wheel 404, so as to adjust the distance between the upper surface of the code nail 405 and the coding pinch roller 403. The first telescopic mechanism 412 may be a hydraulic cylinder, an electric push rod or a driving cylinder.

Further, the device also comprises a control system, the control system controls the first telescopic mechanism 412 to drive the code printing pinch roller 403 to move close to or away from the code printing wheel 404, the driving mechanism is a servo motor, and the control system controls the servo motor to rotate.

When the casting blank is required to be coded, the control system controls the first telescopic mechanism 412 to extend downwards, so that the coding pinch roller 403 is driven to be close to the coding wheel 404 downwards, and the casting blank 407 is pushed to be in contact with the coding wheel 404; simultaneously, the servo motor is controlled to rotate to drive the code printing wheel 404 to rotate, and the linear speed of the rotation of the code printing wheel 404 is the same as the conveying speed of the casting blank 407; when the code pins 405 are in contact with the cast strand 407, the code pins 405 leave marks on the cast strand 407, and the coding is completed. The servo motor is adopted to drive the code printing wheel 404 to rotate, so that the code printing distance can be accurately controlled; for example, when the casting blank speed is 1M/S, the coding gap is 2M, and the time for one circle of rotation of the coding wheel 404 according to the linear speed of 1M/S is 1S, then the control system needs to control the servo motor to stop for 1S after the first coding is completed and then control the servo motor to rotate.

In order to facilitate the replacement of the code nails 405, the code nails 405 are further connected with the code wheel 404 through screws 406. When the servo motor does not drive the code printing wheel 404 to rotate, the code nails 405 can be replaced on line without stopping lines, so that the code printing flexibility is improved, and the loss caused by stopping lines is reduced.

In order to better transport the coded casting blank 407, a supporting mechanism is further arranged at the rear of the coding mechanism, the supporting mechanism comprises a driving wheel 408 and a driven wheel 409, the driving wheel 408 is arranged below the driven wheel 409, a motor for driving the driving wheel 408 to rotate is arranged on the stand 401, and a third channel for the casting blank 407 to pass through is formed between the driving wheel 408 and the driven wheel 409. Wherein, the motor drives the driving wheel 408 to rotate, and the casting blank 407 passes through the third passageway, and third passageway and casting blank 407 looks adaptation for casting blank 407 can carry more stably under the effect of driving wheel 408 and follow driving wheel 409.

Due to the soft texture of the nonferrous metal, burrs or flashes are likely to occur in the cast strand 407 after the coding, and further, the height of the third channel is 1-3mm lower than the height of the cast strand 407. The driving wheel 408 and the driven wheel 409 provide a micro-pressure of 1-3mm, and can level the coded casting blank 407.

For better delivering the casting 407, further, the lower ends of the first channel, the second channel and the third channel are at the same level.

In order to adjust the distance between the driving wheel 408 and the driven wheel 409, a second support 413 is further arranged on the stand 401, a second swinging support 414 is hinged on the second support 413, the driven wheel 409 is mounted on the second swinging support 414, and a second telescopic mechanism 415 is arranged between the end of the second swinging support 414 far away from the second support 413 and the stand 401. The second swing bracket 414 can swing relative to the second support 413, and along with the up-and-down movement of the second telescopic mechanism 415, the driven wheel 409 mounted on the first swing bracket 411 can be close to or far from the driving wheel 408, so that the adjustment of the height of the third channel is realized. The second telescopic mechanism 415 may be a hydraulic cylinder, an electric push rod or a driving cylinder.

As shown in fig. 24 to 33, the lead ingot cutting and molding machine 600 has X, Y and Z axes respectively representing a horizontal axis, a vertical axis and a vertical axis in a three-dimensional coordinate system. The number of bed knives 611 is one or more and is set according to the specific process requirements. The shape of the bed knife 611 and the side knife 616 are set according to specific machining needs. The knife holder 618 and the sliding cover 606 form a square structure with one side open, and the opening is a discharge hole.

The three-dimensional coordinate system is used as a reference system, the X-axis direction is parallel to the casting blank conveying direction, the X-axis and the Y-axis are positioned on a horizontal plane, and the Z-axis is positioned on a vertical plane.

Lead ingot cutting and forming machine 600 based on the structure, lead ingot 624 enters the processing platform in slide 602 from feed inlet 623 along the X-axis direction through the assembly line, calibration mechanism calibrates lead ingot 624, pushing mechanism promotes the movement of lead ingot 624 after calibration towards the discharge gate along the Y-axis direction, the position of discharge gate is provided with cutter mechanism, lead ingot 624 forms the appearance of required lead ingot 624 through cutter mechanism cutting, bottom knife 611 of cutter mechanism cuts out packing belt notch 625, side knife 616 cuts out fork truck transportation notch, workman transport notch 626 simultaneously, lead ingot 624 after cutting is pushed out from the discharge gate, automatic processing forms the appearance of lead ingot 624 required for production, the shaping is quick and convenient, the difficult smoke and dust that produces of cutting in relatively airtight space. The production efficiency is improved, alloy segregation is avoided when casting is required to be cooled for a long time, the quality of the lead ingot 624 is improved, smoke dust and high temperature generated by casting are reduced, environmental pollution is reduced, the labor intensity of workers and lead poisoning hazard caused by smoke dust formed by polishing are reduced, meanwhile, the burning of lead liquid to workers is avoided, the potential safety hazard is reduced, and the personal safety of workers is further ensured. Wherein the softer texture of the lead ingot 624 is easily deformed and not suitable for broaching. Burrs and burrs occur in the cast lead ingot 624, secondary processing is needed to increase production time, production efficiency is reduced, and the cast lead ingot is not suitable for large-scale production. Wherein the fork truck transports breach, workman transport breach sharing breach.

Preferably, two bed knives 611 are disposed in parallel and spaced apart relationship between side knives 12.

The number of bed knives 611, and the spacing distance between adjacent bed knives 611 may be specifically set according to the processing requirements to accommodate different lead ingot 624 profiles.

Specifically, the bottom knife 611 includes a bottom knife seat, a bottom knife notch 612 is provided on one side of the bottom knife seat, two side plates 614 with right trapezoid shapes are provided on the bottom knife notch 612, a first cover plate 613 is provided on the top surfaces of the two side plates 614, a second cover plate 615 is provided on the inclined surface of the side plate 614, the bottom surface of the bottom knife notch 612 extends to be connected with the first cover plate 613, and the side plates 614, the first cover plate 613 and the extending surface of the bottom knife notch 612 form a cutting edge of the bottom knife 611.

The pushing mechanism pushes the lead ingot 624 to pass through the cutter mechanism, and the bottom cutter 611 cuts the bottom of the lead ingot 624 into a through long groove which is a packing groove 625, so that the packing belt can be conveniently bound. Further, the upper ends of the two side plates 614 are inclined toward opposite directions, i.e., the distance between the upper ends of the two side plates 614 is smaller than the distance between the lower ends of the two side plates 614, so that the strapping tape is conveniently tied.

The side cutter 616 comprises a side cutter seat, a side cutter notch 617 is formed in one side of the side cutter seat, and the side cutter notch 617 is far away from the inner side wall and the bottom surface of the side cutter seat, and the bottom surface of the side cutter seat forms a cutting edge of the side cutter 616.

The pushing mechanism pushes the lead ingot 624 to pass through the cutter mechanism, the side cutters 616 cut gaps at two ends of the bottom of the lead ingot 624, and the gaps are forklift transporting gaps and worker transporting gaps 626, so that forklift transporting and worker transporting are facilitated. The maximum distance between the side blade notches 617 of the side blades 616 is greater than the length of the lead ingot 624, facilitating cutting.

Preferably, the thrust mechanism comprises a hydraulic cylinder 605 and a push plate 604, the push plate 604 is fixedly connected with the sliding cover 606, and an output shaft of the hydraulic cylinder 605 is fixedly connected with the push plate 604.

The hydraulic cylinder 605 provides the power required for moving the lead ingot 624 and cutting the lead ingot 624, the hydraulic cylinder 605 drives the push plate 604 to move back and forth along the Y-axis direction, the push plate 604 pushes the sliding cover 606 to move back and forth along the Y-axis direction, and the fixed connection is screw connection or welding or riveting.

The calibration mechanism includes a calibration rod 607, a calibration disc 620 and a first cylinder 608, wherein an output shaft of the first cylinder 608 and the calibration rod 607 are respectively and fixedly connected with the calibration disc 620, the calibration disc 620 is rotatably disposed on the sliding cover 606, the sliding cover 606 is provided with an arc through slot, and the calibration rod 607 slides in the arc through slot.

The first cylinder 608 drives the correction disc 620 to rotate clockwise and anticlockwise on the sliding cover 606, the sliding cover 606 drives the correction rod 607 to slide in the arc-shaped through groove in a reciprocating manner, the vertically arranged correction rod 607 realizes the limit of the lead ingot 624, when the lead ingot 624 enters the sliding seat 602 from the feeding hole 623, the correction rod 607 slides anticlockwise, the lead ingot 624 is propped against the correction rod 607 to contact, the lead ingot 624 stops advancing, and the correction rod 607 slides clockwise.

Preferably, the sliding cover 606 is provided with a pressing mechanism, the pressing mechanism includes a pressing plate 610 and a second air cylinder 609, and an output shaft of the second air cylinder 609 is fixedly connected with the pressing plate 610.

The hold-down mechanism can vertically limit the lead ingot 624, so that the lead ingot 624 cannot jump up and down and move left and right in the cutting process, and the cutting quality is affected. The lead ingot 624 is pushed into the machine seat 401, the correction rod 607 slides out to be in contact with the lead ingot 624 to limit the lead ingot to stop advancing, the second air cylinder 609 pushes out the pressing plate 610 to be in contact with the lead ingot 624 to be in vertical limit with the lead ingot, the correction rod 607 slides back, the hydraulic cylinder 605 drives the push plate 604 to drive the lead ingot 624 to move towards the discharge hole, the lead ingot 624 is cut through the cutting mechanism, and the cutting is completed and pushed out from the discharge hole. The press plate 610 is slightly abutted against the lead ingot 624 during the compaction process.

Preferably, the sliding base 602 is provided with two opposite sliding rails 622, and the sliding cover 606 is provided with sliding blocks 621 respectively matched with the two sliding rails 622.

The sliding block 621 is fixedly connected with the sliding cover 606, the sliding block 621 is provided with a through hole matched with the sliding rail 622, the sliding rail 622 penetrates through the through hole and freely slides in the through hole, and the sliding cylinder 605 drives the sliding cover to slide back and forth in a reciprocating manner through sliding fit among the sliding rails 622 of the sliding block 621. For example, four slide blocks 621 are provided, and two slide blocks 621 are provided for each slide rail 622.

Preferably, the sliding seat 602 is provided with a sliding table plate 603, the sliding table plate 603 is attached to the tool holder 618, and the top surface of the sliding table plate 603 is flush with the top surface of the tool holder 618.

The sliding table plate 603 can be matched with the tool holder 618, and the top surface of the sliding table plate 603 is flush with the top surface of the tool holder 618 or slightly higher than the tool holder 618 during installation, and the top surface of the sliding table plate 603 is a smooth plane, so that a lead ingot 624 can slide on the sliding table plate 603 conveniently.

Preferably, a discharging hopper 619 is disposed below the sliding seat 602, and an opening of the discharging hopper 619 is opposite to the discharge openings of the side knife notch 617 and the bottom knife notch 612.

The discharge hopper 619 recovers an excessive cutting layer generated by cutting the lead ingot 624. The slide platen 603 divides the side knife notch 617 and the bottom knife notch 612 into a notch inlet positioned above the top surface and a notch outlet positioned below the top surface, the notch outlet is opposite to the discharge hole, and the cutting layer falls into the lower hopper 619 for further recovery.

The above is a specific embodiment of the invention, and from the implementation process, the invention provides a lead ingot continuous casting production line, which reduces environmental pollution and improves lead ingot quality. The method has the advantages of accurate flow control, closed crystallization, instant shaping, reduction of oxidizing slag and automation, and also eliminates alloy waste and reduces the segregation phenomenon of the lead ingot. The whole production line mainly takes the closed type, has few open points, is extremely convenient for collecting smoke dust, can not pollute the environment, and belongs to clean environment-friendly equipment. The labor force of workers is reduced, and the quality of lead ingots is improved.

Claims

1. The lead ingot continuous casting production line comprises a lead melting furnace (100), a pouring pot (200), a steel belt pulley continuous casting device (300), an alignment coding machine (400), a shearing machine (500), a lead ingot cutting and forming machine (600), a stacking robot (700) and an online packing machine (800); the method is characterized in that:

the lead melting furnace (100) is communicated with the pouring pot (200) through a lead conveying pipe (101);

the pouring pot (200) comprises a shell (201) and an inner container (204) with a liquid level chamber (206), the shell (201) is arranged on a base (215), a baffle plate (216) is arranged in the liquid level chamber (206), the liquid level chamber (206) is divided into a first containing cavity (208) and a second containing cavity (207) by the baffle plate (216), a communicating pipe (209) which is communicated with the first containing cavity (208) and the second containing cavity (207) is arranged at the bottom end of the baffle plate (216), the bottom of the first containing cavity (208) is connected with a drainage pipe (308), and the drainage pipe (308) is communicated with the first containing cavity (208);

one end of the drainage tube (308) far away from the first accommodating cavity (208) is communicated with a cavity of the steel belt wheel belt type continuous casting device (300) through a pouring nozzle (309);

lead ingot cutting make-up machine (600) includes the organism, the organism includes cutting frame (601), be provided with slide (602) on cutting frame (601), feed inlet (623) along the X axle and along the discharge gate of Y axle have been seted up to slide (602), slide (602) are provided with the thrust mechanism relative with the discharge gate, slide (602) are close to the position department of discharge gate and are provided with cutter mechanism, cutter mechanism includes blade holder (618), bed knife (611) and side knife (616), side knife (616) set up the both ends at blade holder (618), bed knife (611) set up between two side knives (616), slide (602) are provided with slider (606) along the Z axle, slider (606) are provided with calibration mechanism.

2. A lead ingot continuous casting line as claimed in claim 1, wherein: the ingot pushing device comprises a first ingot pushing device (900) and a second ingot pushing device (1000), wherein the first ingot pushing device (900) and the second ingot pushing device (1000) are respectively positioned at two sides of the casting blank conveying direction and are positioned at one feeding side of the lead ingot cutting and forming machine (600), and the second ingot pushing device (1000) and the lead ingot cutting and forming machine (600) are positioned at the same side of the casting blank conveying direction;

the pushing direction L1 of the first ingot pushing device (900) is perpendicular to the casting blank conveying direction; the pushing direction L2 of the second ingot pushing device (1000) is parallel to the casting blank conveying direction and is arranged corresponding to a feed port (623) of the lead ingot cutting and forming machine (600);

the lead ingot cutting and forming machine also comprises a first conveying mechanism (1400) matched with the first ingot pushing device (900), wherein the first conveying mechanism (1400) is positioned between a second ingot pushing device (1000) and a feed inlet of the lead ingot cutting and forming machine (600);

a second conveying mechanism (1500) matched with the lead ingot cutting and forming machine (600) is arranged outside the discharge port;

the ingot pushing device (1200) is positioned on the same side of the casting blank conveying direction, and the first ingot pushing device (900) and the third ingot pushing device (1200) are sequentially arranged along the casting blank conveying direction;

The pushing direction L3 of the third ingot pushing device (1200) is perpendicular to the casting blank conveying direction, and a third conveying mechanism (1600) matched with the third ingot pushing device is arranged;

the stacking robot (700) is located between the discharge end of the second conveying mechanism (1500) and the discharge end of the third conveying mechanism (1600).

3. A lead ingot continuous casting line as claimed in claim 2, wherein: the device also comprises a first pier-flat corrector (1100) used together with the second conveying mechanism (1500) and a second pier-flat corrector (1300) used together with the third conveying mechanism (1600);

the first heading level corrector (1100) has a first heading level correction space for passing a cut lead ingot, and the second heading level corrector (1300) has a second heading level correction space for passing an original lead ingot.

4. A lead ingot continuous casting line as claimed in claim 1, wherein: the liquid level chamber (206) is provided with an adjusting mechanism for controlling the opening and closing degree of the communicating pipe (209), the adjusting mechanism comprises a first plug (221), a lever mechanism (217) and a floating ball (218), the floating ball (218) is arranged in a first accommodating cavity (208), the first plug (221) is arranged in a second accommodating cavity (207), one end of the floating ball (218) is connected with one end of the lever mechanism (217) through a first connecting rod (219), the first plug (221) is connected with the other end of the lever mechanism (217) through a second connecting rod (220), and the first plug (221) is matched with the communicating pipe (209).

5. The lead ingot continuous casting production line as set forth in claim 4, wherein: communicating pipe (209) are including fluid-discharge tube (210) and first valve body (211), be provided with on first valve body (211) with first cavity (212) of first end cap (221) looks adaptation, first cavity (212) are linked together with fluid-discharge tube (210), the bottom, circumference and the top of first valve body (211) all are provided with inlet (213), a plurality of inlet (213) are linked together with first cavity (212).

6. A lead ingot continuous casting line as claimed in claim 1, wherein: the drainage tube is characterized in that a driving mechanism (228) is arranged on the first containing cavity (208), a connecting rod (229) is arranged at the output end of the driving mechanism (228), the driving mechanism (228) can drive the connecting rod (229) to move up and down, and a second plug (230) for controlling the opening degree of the drainage tube (308) is arranged at the lower end of the connecting rod (229).

7. The lead ingot continuous casting production line as set forth in claim 6, wherein: the bottom of first appearance chamber (208) is provided with second valve body (231), be provided with on second valve body (231) with second end cap (230) looks adaptation second cavity (232), second cavity (232) and drainage tube (308) intercommunication, the bottom, circumference and the top of second valve body (231) all are provided with leakage fluid dram (234), a plurality of leakage fluid dram (234) and second cavity (232) intercommunication.

8. A lead ingot continuous casting line as claimed in claim 1, wherein: the steel belt wheel belt type continuous casting device (300) comprises a continuous casting rack (301), a crystallization wheel (302), an upper belt wheel (306), a tensioning wheel train and a steel belt (4);

an inner concave crystallization cavity (303) is formed in the outer cylindrical surface of the crystallization wheel (302), rims (304) are arranged on two axial sides of the crystallization cavity (303), a bottom wall (305) is arranged on the inner side of the crystallization cavity (303) in the radial direction, and the rims (304) and the bottom wall (305) are both positioned on the crystallization wheel (302); the crystallization cavity (303) comprises a crystallization section, the steel belt (307) is stretched by the upper belt wheel (306) and the tensioning wheel train and bypasses the crystallization wheel (302), and the crystallization section on the crystallization wheel (302) is sealed by the steel belt (307) to form the cavity; one end of the cavity is a casting port, and the other end is a blank pulling port; the upper belt wheel (306) is positioned on the radial outer side of the cavity at the casting port; the outer side of the cavity is provided with a water cooling module;

one end of the pouring nozzle (309) far away from the drainage tube (308) is an open end, and the open end is positioned in the cavity and is matched with the outer contour of the crystallization cavity (303); the upper portion of the open end has a concave arcuate opening that is adapted to the outer contour of the upper pulley (306).

9. The lead ingot continuous casting line as claimed in claim 8, wherein: the upper surface of the arc-shaped opening of the pouring nozzle (309) is provided with a continuous groove, a sealing strip (310) is arranged in the groove, and the upper part of the sealing strip (310) protrudes out of the upper surface of the arc-shaped opening and is matched with the outer contour of the upper belt wheel (306).

10. The lead ingot continuous casting line as claimed in claim 8, wherein: the water cooling module comprises an inner ring cooling body (311) and an outer ring cooling body (312), wherein the inner ring cooling body (311) is arranged on the inner side of the inner cylindrical surface of the bottom wall (305), and the outer ring cooling body (312) is arranged on the outer side of the outer cylindrical surface of the steel belt (307) forming the cavity; the inner ring cooling body (311) and the outer ring cooling body (312) are respectively provided with a hollow cavity and spray holes, the hollow cavity is communicated with a cooling liquid supply system, a plurality of spray holes are formed, the spray holes are uniformly distributed, and the spray directions of the spray holes face the cavity;

11. A lead ingot continuous casting line as claimed in claim 1, wherein: the straightening coding machine (400) comprises a machine base (401), wherein a traction mechanism is arranged on the machine base (401) and comprises a plurality of traction wheels (402) which are arranged in an up-down staggered mode, and a first channel for a casting blank (407) to pass through is formed among the traction wheels (402); the utility model discloses a coding machine, including code wheel (404) and setting up and beat sign indicating number pinch roller (403) of code top, beat and form the second passageway that supplies casting blank (407) to pass through between sign indicating number wheel (404) and the sign indicating number pinch roller (403), be provided with on frame (401) and drive and beat code wheel (404) pivoted actuating mechanism, the circumference of beating code wheel (404) is provided with a plurality of code nails (405).