CN217121674U - Automatic production line for zinc alloy ingots - Google Patents

Abstract

An automatic production line of zinc alloy ingots comprises a zinc alloy smelting converter, an alloy liquid pouring automatic groove moving device, a hollow interlayer cooling mold for pouring the alloy ingots, a cooling system of the hollow interlayer cooling mold, and an alloy ingot automatic demolding device. The utility model discloses can realize the full automatic production of zinc alloy spindle to alleviate workman intensity of labour, eliminate production potential safety hazard, improve production efficiency and zinc spindle product quality.

Description

Automatic production line for zinc alloy ingots

Technical Field

The utility model relates to a zinc alloy ingot production facility technical field, concretely relates to production line that can automatic production zinc ingot.

Background

In the casting production of zinc ingots of more than 1 ton, the traditional production mode is as shown in figure 1, the axis A-A of a bracket B of a pouring system is taken as a rotation center, the length of a lower trough C is taken as a radius basically, and a plurality of casting molds D are radially and uniformly distributed along a semicircular arc position. The outer part of the blanking groove is arranged on a trolley G with rollers at the bottom and can rotate around A-A along with the walking of the trolley. The molten zinc J in the converter E flows into the hopper F by rotating the converter, and then flows from the hopper into the casting mold D through the feed chute C. After the pouring of the previous casting mold is finished, the manual pushing trolley rotates the discharging groove to the next casting mold, the next casting mold is poured, and the rotating discharging groove and the pouring are alternately carried out until all casting molds are poured.

According to the traditional production mode, zinc liquid continuously flows out of the converter, when a blanking groove moves from one casting mold to another casting mold, some zinc liquid can leak between the two casting molds, the solution is that a receiving groove H is arranged between the two casting molds, the zinc liquid leaking between the two casting molds is guided into the next casting mold, the receiving groove is moved manually, when one casting mold is poured, the receiving groove is manually moved from the previous interval to the next interval, the labor intensity of workers is high, the potential safety hazard is high, and the production efficiency is low.

In addition, as shown in fig. 2 and 3, the conventional die for forming an alloy ingot is mainly composed of a die K and a pin L. When casting ingots, nonferrous metal liquid is injected into the cavity M, and the mold, the pin and the alloy ingot are bonded firmly after cooling and solidification. Demoulding is divided into two steps: (1) a steel rope penetrates through a hole N in the pin, the mold, the pin and the alloy ingot are lifted by a lifting device, then the mold is lifted by a sledge hammer, and the alloy ingot and the pin are still adhered together; (2) and (4) releasing the steel rope penetrating through the pin hole, hanging the alloy ingot, knocking off the pin by a sledge hammer, and thus completing the demoulding of the alloy ingot.

As shown in fig. 3, the mold and the pins are solid structures. Since the temperature of the nonferrous metal liquid is above 400 ℃, after the nonferrous metal liquid is cast into a mold, the liquid is cooled slowly mainly from the upper surface due to the too thick wall of the mold, and the following problems occur:

a. demolding of the alloy ingot is very difficult;

b. the heat in the alloy liquid can not be dissipated for a long time, so that the temperature of the die is increased, and the service life of the die is influenced;

c. because the metal liquid is mainly cooled from the upper surface of the die, the cooling is uneven, and the quality of the alloy ingot is influenced;

d. the zinc ingot is demoulded and taken out from the mould by manpower, the labor intensity of workers is high, the production efficiency is low, and potential safety hazards exist.

Disclosure of Invention

The utility model aims at solving a great deal of problem that above-mentioned prior art exists, providing a zinc alloy spindle automatic production line to alleviate workman intensity of labour, eliminate the production potential safety hazard, improve production efficiency and zinc ingot product quality.

The utility model discloses the technical scheme who takes as follows:

an automatic production line of zinc alloy ingots comprises an alloy liquid pouring automatic groove moving device, a hollow interlayer cooling mold for pouring the alloy ingots, a cooling system of the hollow interlayer cooling mold, and an alloy ingot automatic demolding device;

the alloy liquid pouring automatic groove moving device comprises an alloy liquid blanking groove automatic moving mechanism and a groove connecting automatic moving mechanism;

the alloy liquid blanking groove automatic moving mechanism comprises an automatic walking trolley and a blanking groove arranged at the top of the walking trolley, the rear end of the blanking groove is connected with a rotatable liquid storage cup, and the front part of the blanking groove is arranged on the walking trolley; the liquid storage cup is arranged below a liquid outlet of the smelting converter;

the automatic moving mechanism of the connecting groove comprises a section of arc-shaped seat plate which is arranged by taking the rotating axial lead of the liquid storage cup as the center, an arc-shaped rack arranged on the bottom surface of the arc-shaped seat plate, a gear meshed with the arc-shaped rack, two arc-shaped guide rails arranged on the outer sides of the arc-shaped rack and the gear, four sliding blocks symmetrically assembled on the arc-shaped guide rails and positioned on two sides of the gear, a supporting arm fixedly connected to the bottom surfaces of the four sliding blocks and provided with a through hole in the middle, a gear motor arranged on the bottom surface of the supporting arm and provided with a motor shaft penetrating through the through hole to be connected with the central shaft of the gear, a connecting groove fixedly arranged at the outer end of the supporting arm, four opposite radial sliding blocks fixedly arranged on the top surface of the arc-shaped seat plate, two linear guide rails arranged in the same direction as the lower trough and respectively assembled on the opposite radial sliding blocks, a screw rod arranged between the two linear guide rails, a nut seat assembled on the screw rod and fixedly arranged on the arc-shaped seat plate at the bottom, The feeding trough is arranged on the top plate and is fixedly connected with the top plate;

the hollow interlayer cooling molds are arranged below the liquid outlet end of a blanking groove of the alloy liquid pouring automatic groove moving device and are uniformly distributed along the semicircular arc position in a radial shape, and each hollow interlayer cooling mold is arranged on the support frame; the hollow interlayer cooling mold comprises an integrated mold body, hollow blind hole pins, through holes and movable ejector rods, wherein the middle of the integrated mold body is provided with a mold cavity, the periphery of the mold cavity is provided with a jacket, the hollow blind hole pins are symmetrically arranged on two sides in the mold cavity and are integrated with the mold body, the through holes are symmetrically arranged at the bottom of the mold body and are positioned at the inner sides of the two hollow blind hole pins, the movable ejector rods can be assembled in the through holes and are provided with threaded holes, cooling liquid which circularly flows can be injected into the hollow interlayer between the mold body and the jacket, the jacket is provided with a liquid inlet and a liquid outlet, the cooling liquid circularly flows into and out of the liquid inlet and the liquid outlet, and the bottom of the jacket is provided with a liquid outlet;

the cooling system comprises an insertion pipe inserted into the pin blind hole from a liquid inlet at the bottom of a jacket of the hollow interlayer cooling mold, a liquid supply main pipe arranged below the mold, a liquid supply branch pipe connected with the liquid supply main pipe and the insertion pipe, and a liquid discharge pipe connected outside a liquid discharge port, wherein a first control valve is arranged at the liquid inlet of the liquid supply main pipe, a second control valve is arranged at the liquid discharge port of the liquid discharge pipe, and the first control valve and the second control valve are connected with the control system;

the automatic alloy ingot demolding device is a hydraulic ejection mechanism arranged below the hollow interlayer cooling mold and comprises two groups of hydraulic oil cylinder assemblies, the top surfaces of oil cylinder bases of the hydraulic oil cylinder assemblies are fixedly arranged on the bottom surface of the mold body through screws, oil cylinders are fixedly connected to the bottom surface of the oil cylinder bases through screws, and upward oil cylinder pistons are in fit connection with internal threads of movable ejector rods through thread sections on the tops of the oil cylinder pistons; and a cooling water jacket with a water inlet hole and a water outlet hole is arranged on the periphery of the oil cylinder seat.

Further, the liquid storage cup of the alloy liquid pouring automatic groove moving device is arranged on the bracket and can rotate along the central shaft of the bracket along with the bracket.

Further, the screw rod motor is positioned between the arc-shaped seat plate and the liquid storage cup.

Furthermore, the connecting groove is a one-way open groove with a closed rear end and an open front end.

Furthermore, the connecting groove is a one-way open groove with a closed rear end and an open front end.

Further, a liquid inlet of the hollow interlayer cooling mold is arranged at the bottom or the lower part of the side wall of the jacket, and a liquid outlet is arranged at the upper part of the side wall of the jacket.

Furthermore, rib plates connected between the die body and the jacket are arranged in the hollow interlayer at intervals, and through holes for cooling liquid to flow through are formed in the rib plates.

Further, a heat insulation plate is arranged between the oil cylinder base and the oil cylinder.

Furthermore, guide sleeves are respectively arranged in the oil cylinder seat from top to bottom, and the oil cylinder piston penetrates through the guide sleeves.

Furthermore, the periphery of the bottom of the insertion pipe is provided with an installation flange, and the installation flange is fixedly installed on a jacket bottom plate of the die body through screws.

The utility model discloses at least, have following advantage:

1. the utility model adopts a full-automatic groove moving device, the blanking groove automatic moving mechanism of the blanking groove automatic moving device places the blanking groove on the automatic walking trolley, the blanking groove can be driven to automatically rotate by the automatic walking trolley, the alloy liquid is continuously poured into the sequentially arranged casting moulds, and the trolley does not need to be pushed manually; the automatic connecting groove moving mechanism is used for fixedly connecting the connecting groove to a supporting arm, the supporting arm can reciprocate along an arc-shaped guide rail under the driving of a gear motor through the rotation of a gear to drive a rotating shaft axis of a material groove below the connecting groove to rotate as a center, meanwhile, a lead screw motor drives a lead screw to drive an arc-shaped seat plate to reciprocate along the length direction of a blanking groove to drive the connecting groove to reciprocate along the radial direction, the connecting groove can move along the circumferential direction and the radial direction in a staggered manner by controlling the alternate starting of the gear motor and the lead screw motor, and the connecting groove can automatically move to the next interval from the previous interval of a casting mold which is casting according to a group of casting molds which are radially and uniformly distributed along the semi-circular arc position by matching with the movement of alloy liquid casting and an automatic traveling trolley, so that the automatic casting and the moving of the connecting groove are realized, the manual moving of the connecting groove is not needed any more, and the splashing and the waste of the alloy liquid can be reduced, the waste of alloy liquid is reduced, the quantitative feeding of the alloy liquid is realized, and the obtained alloy ingots have consistent weight.

2. The utility model discloses a cavity intermediate layer cooling mould as an organic whole of mould body and pin can be to letting in cooling liquid in the cavity intermediate layer and the pin, and the all-round alloy liquid to the pouring in the mould carries out even and quick cooling, improves cooling efficiency, reduces the harm to the mould, extension mould life improves the inside and the apparent quality of alloy spindle to improve production efficiency.

3. The utility model discloses can realize mechanized automatic drawing of patterns, replace tedious manual demoulding mode, can reduce workman intensity of labour, improve work efficiency and production security. The oil cylinder base of the demoulding device is provided with a cooling water jacket, and a heat insulation plate is arranged between the oil cylinder base and the oil cylinder, so that the damage of high-temperature alloy liquid to a hydraulic oil cylinder assembly can be avoided, and the service life of the hydraulic oil cylinder assembly is prolonged.

4. The cooling system configured for the hollow interlayer cooling mold is reasonable in design, the mold can be uniformly and quickly cooled, automatic control of inlet and outlet of cooling liquid in the hollow interlayer of the mold is achieved, the cooling effect is good, and the production efficiency is high.

5. The utility model discloses overall design is ingenious, and safe and reliable can avoid the workman to operate under dangerous environment, has reduced the potential safety hazard greatly to reduce workman's intensity of labour, improved production efficiency, practical value is high.

Drawings

FIG. 1 is a schematic view of conventional alloy ingot casting;

FIG. 2 is a schematic view of a prior art mold;

FIG. 3 is a cross-sectional view of FIG. 2 taken along the pin;

fig. 4 is a schematic view of the present invention;

FIG. 5 is a schematic view of an automatic groove moving device;

FIG. 6 is a schematic view of the automatic slot-receiving moving mechanism of the automatic slot-moving device;

FIG. 7 is a schematic view of the automatic slot-engaging mechanism of the automatic slot-moving apparatus as seen from below;

FIG. 8 is a schematic view of the automatic slot-engaging mechanism of the automatic slot-moving apparatus viewed from the other direction below;

FIG. 9 is a schematic view of the automatic trough-connecting moving mechanism after the arc-shaped seat plate and the top plate are taken away;

FIG. 10 shows the movement trace of the connecting groove during pouring;

FIG. 11 is a schematic structural view of a hollow sandwich cooling mold;

FIG. 12 is a schematic view of a hollow sandwich cooling mold sectioned along the pin;

FIG. 13 is a cross-sectional view of the hollow sandwich cooling mold taken along the front of the set rib;

FIG. 14 is a bottom view of a cooling system arrangement for the hollow sandwich cooling mold;

FIG. 15 is a cross-sectional view taken along line C-C of FIG. 14;

FIG. 16 is a left side view of FIG. 15;

FIG. 17 is a schematic cross-sectional view of an automatic demolding apparatus arranged in cooperation with a hollow sandwich cooling mold;

FIG. 18 is a cross-sectional view taken along line D-D of FIG. 17;

fig. 19 is a cross-sectional view E-E of fig. 18.

Figure 20 is a schematic view of a hollow sandwich cooling mold fitted with a cooling system with an automatic demolding device.

Detailed Description

As shown in fig. 4, an automatic zinc alloy ingot production line comprises a zinc alloy smelting converter, an alloy liquid pouring automatic groove moving device, a hollow interlayer cooling mold for pouring an alloy ingot, a cooling system thereof, and an alloy ingot automatic demolding device.

The automatic groove moving device for alloy liquid pouring comprises an automatic alloy liquid blanking groove moving mechanism and a groove connecting automatic moving mechanism.

The automatic moving mechanism of the alloy liquid blanking groove is shown in figures 5-9 and comprises an automatic walking trolley 2-1 and a blanking groove 2-2 arranged at the top of the walking trolley. The rear end of the blanking groove is connected with a rotatable liquid storage cup 2-3, the liquid storage cup is mounted on a bracket 2-4 capable of rotating along the central axis and can rotate along the central axis of the bracket along with the bracket, the front part of the blanking groove is placed on a walking trolley, and the walking trolley can walk in a reciprocating manner along the central axis of the bracket and drives the blanking groove to rotate. The liquid storage cup 2-3 is arranged below a liquid outlet of the smelting converter 1. In order to receive the alloy liquid conveniently, a transition alloy liquid hopper 5 is arranged below a liquid outlet of the zinc alloy smelting converter 1, the zinc alloy liquid smelted by the smelting converter enters a liquid storage cup, enters the transition alloy liquid hopper from the liquid storage cup, flows into a blanking groove, and flows into a hollow interlayer cooling die through the blanking groove. The automatic walking trolley can be an automatic guide trolley, a remote-control automatic walking trolley and an automatic walking trolley with a driving motor, and the automatic walking trolley can be purchased in the market or manufactured by self according to the prior art. The control system of the trolley is connected with the servo control system of the moving groove for joint control. The top surface of the automatic walking trolley is provided with a positioning groove 2-1-1 or can be provided with a limiting mechanism, and the blanking groove is arranged in the positioning groove or the limiting mechanism to prevent sliding or sliding during rotation.

The automatic moving mechanism for the connecting groove comprises a section of arc-shaped seat plate 2-5 which is arranged by taking the rotating axial lead (namely the central axis of the bracket) of the liquid storage cup as the center, an arc-shaped rack 2-6 which is arranged at the bottom surface of the arc-shaped seat plate, a gear 2-7 which is meshed with the arc-shaped rack, two arc-shaped guide rails 2-8 which are arranged at the outer sides of the arc-shaped rack and the gear, four sliding blocks 2-9 which are symmetrically assembled on the arc-shaped guide rails and are positioned at the two sides of the gear, a supporting arm 2-10 which is fixedly connected with the bottom surface of the four sliding blocks and is provided with a through hole 2-11 in the middle, a gear motor 2-12 which is arranged at the bottom surface of the supporting arm and is connected with the central axis of the gear 2-7 by a motor shaft passing through the through hole 2-11, a connecting groove 2-19 which is fixedly arranged at the outer end of the supporting arm, four radial sliding blocks 2-13 which are fixedly arranged at the top surface of the arc-shaped seat plate in pairs, The automatic groove connecting mechanism comprises two linear guide rails 2-14 which are respectively assembled on two opposite radial slide blocks and arranged in the same direction as the feeding groove, a screw rod 2-15 arranged between the two linear guide rails, a nut seat 2-16 assembled on the screw rod and fixedly arranged on an arc-shaped seat plate at the bottom, a screw rod motor 2-17 connected to the tail end of the screw rod, and a top plate 2-18 for fixedly arranging the linear guide rails, wherein the feeding groove is arranged on the top plate and fixedly connected with the top plate, so that the installation of the automatic groove connecting moving mechanism is realized. The bottom surface of the blanking groove and the top surface of the top plate can be mutually welded and connected, and other suitable connection modes can also be adopted. The top surface and the bottom surface of the arc-shaped seat plate 2-5 are both planes, the bottom surface of the top plate is a plane, and the top surface is generally set to be an inclined surface, so that the blanking groove is arranged on the top plate to be in an outward and downward inclination state, and alloy liquid can smoothly flow downwards to enter the casting mold. The screw rod motors 2-17 are arranged on the inner sides of the arc-shaped seat plates and located between the arc-shaped seat plates and the liquid storage cups, and the screw rod motors 2-17 are arranged on the inner sides of the top plates 2-18. The motor shaft of the gear motor is connected with the central shaft of the gear 2-7 through a coupler, and the motor shaft of the screw rod motor is connected with the screw rod 2-15 through a coupler. The connecting grooves 2-19 are unidirectional open grooves with closed rear ends and open front ends. The gear motors 2-12 and the screw rod motors 2-17 are servo motors, and the gear motors 2-12 and the screw rod motors 2-17 are connected with a servo control system and controlled to start and stop through the servo control system. The servo control system can be realized by adopting the existing servo control system and method, and can be implemented by all the technicians in the field.

Fig. 9 is a schematic diagram of the automatic slot connecting moving mechanism after the arc-shaped seat plate and the top plate are removed, in order to more clearly show the arrangement of the rack-and-pinion transmission mechanism and the lead screw pair transmission mechanism, and show the principle that the slots 2-19 move along the arc-shaped guide rail (i.e. the circumferential direction) and the linear guide rail (i.e. the radial direction).

A group of hollow interlayer cooling molds are arranged below the liquid outlet end of a blanking groove of the alloy liquid pouring automatic groove moving device and are uniformly distributed along the semi-circular arc position in a radial sequence, and each hollow interlayer cooling mold is arranged on a support frame 6. When the layout is carried out in a workshop, a pit can be dug firstly, and the support frame is arranged in the pit.

Fig. 10 schematically shows the movement paths of the receiving channels 2-19 during casting (indicated by arrows in the figure). The liquid storage cup 2-3 of the utility model is arranged below the transition alloy liquid hopper 5, and the alloy liquid in the converter flows into the transition alloy liquid hopper, then enters the liquid storage cup and flows into the blanking groove 2-2. The discharging groove is placed on the automatic walking trolley 2-1, the automatic connecting groove moving mechanism is connected and installed on the bottom of the discharging groove through a top plate, and the liquid outlet end of the discharging groove is placed above a group of hollow interlayer cooling molds which are radially and uniformly distributed at intervals along the semicircular arc position. When pouring, the alloy liquid flows into the first casting mould from the blanking groove, at the moment, the receiving groove 2-19 is placed at the interval between the first casting mould and the second casting mould, namely the position I in figure 10, after the first casting mould is filled, the automatic walking trolley 2-1 moves forward to drive the blanking groove to rotate to the opposite second casting mould, the alloy liquid is poured into the second casting mould, and in the process that the blanking groove is transferred from the first casting mould to the second casting mould, the alloy liquid continuously flowing out of the blanking groove falls into the receiving groove 2-19 and then directly flows into the second casting mould, and is rarely splashed outside the casting mould. When a second casting mold is poured, the screw motor 2-17 is started to drive the automatic groove-connecting moving mechanism to integrally retract along the radial direction (move towards the bracket), so as to drive the groove-connecting to move to the position II, then the screw motor is stopped, the gear motor 2-12 is started to drive the gear to move forwards along the rack, so as to drive the groove-connecting to move forwards along the arc-shaped guide rail by one station to reach the position III, then the gear motor is stopped, the screw motor is started to drive the whole automatic groove-connecting moving mechanism to integrally move forwards along the radial direction, so as to drive the groove-connecting to move to the position IV, namely, the screw motor is stopped at the interval between the second casting mold and the third casting mold, at the moment, the second casting mold is about to finish pouring, after the second casting mold is completely poured, the automatic traveling trolley moves forwards to drive the blanking groove to rotate to the opposite third casting mold, and when the third casting mold is poured, the automatic groove-connecting moving mechanism repeats starting and stopping of the front groove from the position I to the position through the screw motor The motion trajectory of position IV. The sequential continuous pouring of the casting molds and the sequential automatic lap joint of the connecting grooves and the pouring process between the adjacent casting molds are realized until the pouring of all the casting molds is finished. Prevent the waste of alloy liquid splashing.

The automatic groove moving device for alloy liquid pouring realizes the automatic movement of the blanking groove, the groove connection and the automatic movement, does not need to manually push the moving trolley and move the groove connection, improves the production safety, reduces the labor intensity of workers, realizes the continuous operation of alloy ingot pouring, and improves the production efficiency. Meanwhile, the alloy liquid splashing waste is reduced greatly, and the alloy liquid amount poured into each hollow interlayer cooling mold can be controlled by automatically controlling the starting and stopping of the automatic walking trolley, the gear motor and the screw rod motor, so that the alloy ingot with good weight consistency is obtained.

As shown in fig. 11 to 13, the hollow interlayer cooling mold for casting an alloy ingot comprises a mold body 3-2, a mold cavity 3-1 with an upward opening is arranged in the middle of the mold body, a jacket 3-3 is arranged on the periphery of the mold body, and a hollow interlayer 3-5 is formed in the jacket. Hollow blind hole pins 3-4 integrated with the die body are symmetrically arranged on two sides in the die cavity 3-1. Bottom holes are symmetrically arranged at the bottom of the die body and positioned at the inner sides of the hollow blind hole pins at the two sides, and movable ejector rods 3-11 which can be jacked up and are provided with threaded holes are assembled in the bottom holes. The inner threaded hole of the movable ejector rod preferably adopts a blind hole with a flat and closed top surface, so that the alloy ingot can be stably ejected through the flat top surface when the alloy ingot is demolded, automatic demolding is realized, and the damage to the bottom surface of the alloy ingot is avoided. The top of the hollow blind hole pin is closed, and the center of the hollow blind hole pin is provided with a center hole 3-6 which is directly communicated with the bottom. The hollow blind hole pin 3-4 is in a round table shape with a big bottom and a small top. The hollow interlayer 3-5 between the die body 3-2 and the jacket 3-3 can be filled with cooling liquid which circularly flows, the jacket is respectively provided with a liquid inlet 3-7 and a liquid outlet 3-8 which are communicated with the hollow interlayer, the cooling liquid can be filled from the liquid inlet and discharged from the liquid outlet, the circulation of the cooling liquid in the hollow interlayer is formed, and the alloy liquid poured in the die cavity is continuously cooled. According to the requirement, rib plates 3-9 connected between the die body and the jacket can be arranged in the hollow interlayer 3-5 at intervals to increase the die strength, and through holes 3-10 are formed in the rib plates for cooling liquid to smoothly pass through. The liquid inlet 3-7 can be arranged in various ways, one is arranged at the bottom of the side wall of the jacket, as shown in figures 11 and 13; the other is arranged at the bottom of the jacket, and as shown in figure 12, two liquid inlets 3-7 facing the hollow blind hole pins are arranged at the bottom of the jacket. Liquid inlets can also be arranged at the bottom of the side wall of the jacket and at the bottom of the jacket. The liquid outlets 3-8 are arranged at the upper part of the side wall of the jacket to ensure that the hollow interlayer is filled with cooling liquid during casting. Because the cooling liquid is partly gasified during cooling, two liquid outlets are usually provided to prevent the cooling liquid from expanding at high temperature to cause too high pressure in the hollow interlayer and cause the explosion of the mold. The liquid inlet is connected with the liquid inlet pipe, the liquid outlet is connected with the liquid outlet pipe, and cooling liquid flowing out of the liquid outlet pipe can be cooled and then recycled. A liquid discharge port 3-12 is arranged at the bottom of the jacket 3-3, and cooling liquid in the hollow interlayer is discharged from the liquid discharge port when the mould is not used. The cooling liquid is usually water, but other suitable cooling liquids can be used. As a preferred embodiment, two liquid inlets 3-7 opposite to the pins of the hollow blind holes are arranged at the bottom of a jacket as shown in figure 12, a corresponding cooling system is arranged below a hollow interlayer cooling die as shown in figures 14-16, the cooling system comprises an insertion pipe 3-13 inserted into a central hole 3-6 of the pin from the liquid inlet 3-7 at the bottom of the jacket of the hollow interlayer cooling die, a liquid supply main pipe 3-14 arranged below the die, a liquid supply branch pipe 3-15 connected with the liquid supply main pipe and the insertion pipe, and a liquid discharge pipe 3-16 connected with the outside of a liquid discharge port 3-12, a first control valve 3-18 is arranged at the liquid inlet of the liquid supply main pipe 3-14, a second control valve 3-17 is arranged at the liquid discharge port of the liquid discharge pipe 3-16, and the first control valve and the second control valve are connected with the control system, the control system controls the start and stop of the first control valve and the second control valve, and the control technology is the prior art. In order to facilitate the installation of the insertion tubes, as shown in fig. 17, a mounting flange is arranged at the periphery of the bottom of the insertion tubes 3-13, and the mounting flange is fixedly installed on a jacket bottom plate of the die body through screws.

The cooling method of the cooling system is as follows: opening the first control valve 3-18, closing the second electromagnetic valve 3-17, injecting cooling liquid into the central hole 3-6 of the hollow blind hole pin through the insertion pipe, enabling the cooling liquid to flow out from the top of the insertion pipe and enter the hollow interlayer 3-5 until the cooling liquid flows out from the liquid outlet 3-8, indicating that the hollow interlayer of the mold is filled with the cooling liquid, and then keeping liquid supply. And then, zinc alloy liquid is injected into the cavity of the die, the cooling liquid entering the hollow blind hole pin from the insertion pipe cools the hollow blind hole pin and then flows into the hollow interlayer, and the cooling liquid circularly flows in the hollow interlayer to cool the die body, so that the cooling efficiency and the cooling balance can be effectively improved. Because partial coolant liquid in the mould cavity intermediate layer is gasified when pouring high temperature alloy liquid, still causes to be full of gas in the pin centre bore, and the pin can not get the cooling, and adopts the mode of inserting the intubate and annotating the coolant liquid into the pin, can prevent to be the steam gathering in the pin hole after the coolant liquid gasification, plays better balanced cooling's effect. And after the non-ferrous metal liquid in the die cavity is cooled and solidified into an alloy ingot, closing the first control valve, and stopping the circulating flow of the cooling liquid in the hollow interlayer of the die. And then demolding the alloy ingot.

As shown in fig. 17 to 19, the automatic alloy ingot demolding device is a hydraulic ejection mechanism provided below the hollow sandwich cooling mold. The supporting frame 6 is supported at the bottom of the mould body and the mould body is fixed on the supporting frame through screws. The hydraulic ejection mechanism comprises two groups of hydraulic oil cylinder assemblies, the top surfaces of oil cylinder bases 4-1 of the hydraulic oil cylinder assemblies are fixedly arranged on the bottom surface of the die body through screws, the oil cylinders 4-3 are fixedly connected to the bottom surfaces of the oil cylinder bases through screws, and the tops of upward oil cylinder pistons 4-2 are assembled in the internal thread holes of the movable ejector rods 3-11 in a threaded connection mode. The movable ejector rods are jacked up through the oil cylinder piston, and the solidified and formed alloy ingot is jacked up through the two movable ejector rods, so that the automatic demolding of the alloy ingot is realized. The top end of the oil cylinder piston is provided with a section of thread, the movable ejector rod is provided with an internal thread hole, the oil cylinder piston is stably connected with the movable ejector rod through thread fit, and the locking nut 4-7 is assembled to position and lock the ejector rod. The inner threaded hole of the movable ejector rod preferably adopts a blind hole with a flat and closed top surface, so that the alloy ingot can be stably ejected through the flat top surface, and the bottom surface of the alloy ingot is prevented from being damaged. Guide sleeves 4-6 with guiding function are respectively arranged in the oil cylinder seat up and down, and an oil cylinder piston passes through the guide sleeves, so that the oil cylinder can be prevented from being damaged when bearing larger force. The hydraulic oil cylinder is a high-temperature oil cylinder, and the two hydraulic oil cylinder groups can control the two oil cylinders to work synchronously through a control system. The hydraulic oil cylinder and the control system thereof adopt the prior art.

In order to prevent the damage of high-temperature alloy liquid to the hydraulic oil cylinder assembly, a cooling water jacket 4-4 with a water inlet hole and a water outlet hole is arranged on the periphery of the oil cylinder seat, the water inlet hole 4-4-1 is located at the low position of the cooling water jacket, the water outlet hole 4-4-2 is located at the high position of the cooling water jacket, the water inlet hole is externally connected with a water inlet pipe and the water outlet hole is externally connected with a water drain pipe, the circulation of cooling water is realized, and the oil cylinder seat is continuously cooled. The oil cylinder bases of the two oil cylinders can be manufactured into an integrated structure as shown in the figure, and the cooling water jacket is arranged on the periphery of the integrated oil cylinder base. The oil cylinder base can also be made into a split structure, and a cooling water jacket is respectively arranged outside each oil cylinder base. And a heat insulation plate 4-5 is arranged between the oil cylinder seat 4-1 and the oil cylinder 4-3 to prevent the oil cylinder from being damaged by high temperature.

When the automatic demolding device works, the oil cylinder is started, the piston rises to jack the movable ejector rod, and the movable ejector rod jacks the solidified and molded alloy ingot, so that the automatic demolding of the alloy ingot is realized.

Fig. 20 shows the assembly of the hollow sandwich cooling mould and its cooling system and the automatic demoulding device.

The utility model is particularly suitable for the production of zinc ingots and can also be used for the production of other alloy ingots.

Claims (10)

1. An automatic production line of zinc alloy ingots is characterized by comprising a zinc alloy smelting converter, an alloy liquid pouring automatic groove moving device, a hollow interlayer cooling mold for pouring the alloy ingots, a cooling system of the hollow interlayer cooling mold and an automatic alloy ingot demolding device;

the alloy liquid pouring automatic groove moving device comprises an alloy liquid blanking groove automatic moving mechanism and a groove connecting automatic moving mechanism;

the alloy liquid blanking groove automatic moving mechanism comprises an automatic walking trolley (2-1) and a blanking groove (2-2) arranged at the top of the walking trolley, the rear end of the blanking groove is connected with a rotatable liquid storage cup (2-3), and the front part of the blanking groove is arranged on the walking trolley; the liquid storage cup (2-3) is arranged below a liquid outlet of the smelting converter (1);

the automatic groove connecting moving mechanism comprises a section of arc-shaped seat plate (2-5) which is arranged by taking the rotating axis of the liquid storage cup as the center, an arc-shaped rack (2-6) which is arranged at the bottom surface of the arc-shaped seat plate, a gear (2-7) which is meshed with the arc-shaped rack, two arc-shaped guide rails (2-8) which are arranged at the outer sides of the arc-shaped rack and the gear, four sliding blocks (2-9) which are symmetrically arranged on the arc-shaped guide rails and are positioned at the two sides of the gear, a supporting arm (2-10) which is fixedly connected with the bottom surface of the four sliding blocks and is provided with a through hole (2-11) in the middle, a gear motor (2-12) which is arranged at the bottom surface of the supporting arm and is connected with the central shaft of the gear (2-7) through the through hole (2-11), a connecting groove (2-19) which is fixedly arranged at the outer end of the supporting arm, four radial sliding blocks (2-13) which are opposite to each other and are fixedly arranged at the top surface of the arc-shaped seat plate, Two linear guide rails (2-14) which are arranged on two opposite radial sliding blocks in the same direction as the blanking groove, a screw rod (2-15) arranged between the two linear guide rails, a nut seat (2-16) which is arranged on the screw rod and the bottom of which is fixedly arranged on the arc-shaped seat plate, a screw rod motor (2-17) connected with the tail end of the screw rod, and a top plate (2-18) for fixedly arranging the linear guide rails, wherein the blanking groove is arranged on the top plate and is fixedly connected with the top plate;

the hollow interlayer cooling molds are arranged below the liquid outlet end of a blanking groove of the alloy liquid pouring automatic groove moving device and are radially and uniformly distributed along the semicircular arc position, and each hollow interlayer cooling mold is arranged on the support frame (6); the hollow interlayer cooling mould comprises an integrated mould body (3-2) with a mould cavity (3-1) in the middle and a jacket (3-3) at the periphery, hollow blind hole pins (3-4) symmetrically arranged at two sides in the mould cavity and integrated with the mould body, through holes symmetrically arranged at the bottom of the mould body and positioned at the inner sides of the two hollow blind hole pins, and movable ejector rods (3-11) which can be assembled in the through holes and are provided with threaded holes, a hollow interlayer (3-5) between the die body (3-2) and the jacket (3-3) can be filled with cooling liquid which flows circularly, a liquid inlet (3-7) and a liquid outlet (3-8) for cooling liquid to circularly flow in and out are arranged on the jacket, and a liquid outlet (3-12) is arranged at the bottom of the jacket (3-3);

the cooling system comprises insertion pipes (3-13) inserted into pin blind holes from liquid inlets (3-7) at the bottom of a jacket of the cooling mold for the hollow interlayer, liquid supply main pipes (3-14) arranged below the mold, liquid supply branch pipes (3-15) connected with the liquid supply main pipes and the insertion pipes, and liquid discharge pipes (3-16) connected outside liquid discharge ports (3-12), wherein first control valves (3-18) are installed on the liquid inlets of the liquid supply main pipes (3-14), second control valves (3-17) are installed on the liquid discharge ports of the liquid discharge pipes (3-16), and the first control valves and the second control valves are connected with the control system;

the alloy ingot automatic demoulding device is a hydraulic ejection mechanism arranged below the hollow interlayer cooling mould and comprises two groups of hydraulic oil cylinder assemblies, the top surfaces of oil cylinder seats (4-1) of the hydraulic oil cylinder assemblies are fixedly arranged on the bottom surface of the mould body through screws, oil cylinders (4-3) are fixedly connected to the bottom surfaces of the oil cylinder seats through screws, and upward oil cylinder pistons (4-2) are in fit connection with internal threads of movable ejector rods (3-11) through thread sections at the tops of the oil cylinder pistons; and a cooling water jacket (4-4) with a water inlet hole and a water outlet hole is arranged on the periphery of the oil cylinder seat.

2. An automatic production line for zinc alloy ingots according to claim 1, wherein the liquid storage cup of the automatic groove moving device for alloy liquid pouring is mounted on the bracket (2-4) and can rotate along the central axis of the bracket along with the bracket.

3. An automatic production line for zinc alloy ingots according to claim 1 or 2, wherein the screw motor (2-17) is located between the arc-shaped seat plate and the liquid storage cup.

4. An automatic production line for zinc alloy ingots according to claim 1 or 2, characterized in that the receiving groove is a one-way open groove with a closed rear end and an open front end.

5. The automatic production line of zinc alloy ingots according to claim 3, wherein the connecting groove is a one-way open groove with a closed rear end and an open front end.

6. An automatic production line for zinc alloy ingots according to claim 1, wherein the liquid inlet (3-7) of the hollow interlayer cooling mold is arranged at the bottom or the lower part of the side wall of the jacket (3-3), and the liquid outlet (3-8) is arranged at the upper part of the side wall of the jacket.

7. An automatic production line for zinc alloy ingots according to claim 1 or 6, characterized in that rib plates (3-9) connected between the die body and the jacket are arranged in the hollow interlayer (3-5) at intervals, and through holes (3-10) for cooling liquid to flow are formed on the rib plates.

8. An automatic production line for zinc alloy ingots according to claim 1, characterized in that a heat insulation plate (4-5) is arranged between the cylinder base (4-1) and the cylinder (4-3).

9. An automatic production line for zinc alloy ingots according to claim 1 or 8, characterized in that guide sleeves (4-6) are respectively installed at the upper and lower parts in the cylinder block, and the cylinder piston passes through the guide sleeves.

10. An automatic production line for zinc alloy ingots according to claim 1 or 8, characterized in that the periphery of the bottom of the insertion tubes (3-13) is provided with a mounting flange, and the mounting flange is fixedly mounted on a jacket bottom plate of the die body through screws.

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