CN113751700A

CN113751700A - Automatic casting machine and control method

Info

Publication number: CN113751700A
Application number: CN202010506454.1A
Authority: CN
Inventors: 姜聪; 姜庆平; 姜庆志; 潘伟
Original assignee: Ningguo Zhicheng Machinery Manufacturing Co ltd
Current assignee: Ningguo Zhicheng Machinery Manufacturing Co ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-12-07

Abstract

The invention discloses an automatic casting machine, which comprises a ladle device (1) and a tilting device (2), wherein the ladle device (1) comprises a ladle body (11) and a ladle nozzle (12) which are communicated with each other, the ladle body (11) is used for containing molten metal, and the tilting device (2) can drive the ladle device (1) to tilt to a position where a discharge outlet of the ladle nozzle (12) can discharge the molten metal; the device also comprises a controller and a detection element, wherein the detection element is used for detecting the pouring amount of the metal liquid poured out of the ladle body (11), and the controller can control the tilting device (2) to drive the ladle device (1) to rotate under the condition that the pouring amount detected by the detection element reaches a set amount. The invention also provides a control method of the automatic casting machine. The automatic casting machine and the control method provided by the invention can be used for monitoring the whole casting process in real time, and automatically controlling the casting machine to rotate to stop casting after the casting is finished, so that the casting machine is more intelligent, and the casting quality is effectively improved.

Description

Automatic casting machine and control method

Technical Field

The invention relates to the technical field of metal casting, in particular to an automatic casting machine and a control method.

Background

In the production process of castings, the pouring of molten iron is the link with the largest working strength and is also the link with easy occurrence of safety accidents.

The existing pouring process has two implementation modes, one mode is that a pouring ladle is manually operated, molten iron is put into the pouring ladle and is conveyed to a moulding box for pouring, manual identification is needed in the pouring process, the precision is not high, the pouring process is influenced by the working strength, safety accidents are easily caused, and the working efficiency is low; the other type is that pouring is carried out through a semi-automatic mode, and the tilting device is additionally arranged on two sides of the pouring ladle to realize pouring, and the pouring mode also needs manpower to monitor the pouring process, so that the labor intensity of workers is high, the efficiency is low, and the casting precision is influenced.

Disclosure of Invention

The invention discloses an automatic casting machine, which comprises a ladle device and a tilting device, wherein the ladle device comprises a ladle body and a ladle nozzle which are communicated with each other, the ladle body is used for accommodating molten metal, and the tilting device can drive the ladle device to tilt to a position where an outflow port of the ladle nozzle can flow out the molten metal;

the tilting device is characterized by further comprising a controller and a detection element, wherein the detection element is used for detecting the pouring amount of the molten metal poured out of the ladle body, and the controller can control the tilting device to drive the ladle device to rotate under the condition that the pouring amount detected by the detection element reaches a set amount.

The automatic casting machine is provided with the detection element to monitor the whole casting process in real time, and the controller automatically controls the casting machine to rotate to stop casting after the casting is finished, so that accurate casting is realized, the automatic casting machine is more intelligent, the quality of castings is effectively improved, the participation of operators in the casting process is reduced, and the working strength and the operating environment of the operators are improved.

Optionally, the tilting device is arranged on the casting ladle, and the tilting device is arranged on the casting ladle.

Optionally, the device that verts includes two fixed parts and is used for the drive water two portions that vert of ladle device, two the portion that verts articulates in two through two rotation center axles respectively the fixed part, water the ladle device and be located two between the portion that verts, still including set up in the transmission portion and the drive division of fixed part, the transmission portion be used for with the transmission of the portion that verts is connected, the drive division can drive the action of transmission portion is in order to drive the portion that verts winds rotation center axle rotates, the portion that verts drives water the ladle device and vert in step.

Optionally, the axes of the two central axes of rotation coincide, the outlet of the ladle nozzle being on the axis of the central axis of rotation.

Optionally, the portion of verting is close to the one end of watering packet mouth articulate in the fixed part, transmission portion includes tilting wheel and connecting portion, tilting portion dorsad the terminal surface of watering packet mouth be with tilting portion with the articulated department of fixed part is the arcwall face of centre of a circle, connecting portion one end with arcwall face fixed connection, the other end is around locating tilting wheel.

Optionally, the ladle device further comprises a ladle base arranged at the bottom of the ladle body, a first groove is formed in one end, close to the ladle nozzle, of the ladle base, a connecting shaft is arranged at one end, far away from the ladle nozzle, of two side walls of the ladle base, the connecting shaft is perpendicular to the rotating direction of the tilting portion, a limiting shaft is arranged at one end, close to the ladle nozzle, of the tilting portion, a second groove is formed in one end, far away from the ladle nozzle, of the tilting portion, the limiting shaft can be clamped in the first groove, and the connecting shaft can be clamped in the second groove.

Optionally, the ladle casting device is supported by the ladle conveying device, and the ladle conveying device can drive the ladle casting device to horizontally move along a direction parallel to the tilting portion, so that the limiting shaft is clamped in the first groove, and the connecting shaft is clamped in the second groove.

Optionally, the inoculation device comprises an inoculation bag body, a material conveying pipeline and a material discharging pipeline which are connected in sequence, the inoculation bag body is used for containing an inoculant, a spiral shaft is axially arranged in the material conveying pipeline and used for conveying the inoculant, and a material outlet of the material discharging pipeline is positioned right above a material outlet of the ladle nozzle.

Optionally, the apparatus further comprises a second monitoring element capable of monitoring the outflow of the molten metal from the nozzle, and the controller is capable of controlling the inoculating device to be activated on condition of a molten metal outflow signal monitored by the second monitoring element.

Optionally, the bag conveying device further comprises a moving device, the moving device comprises a lower moving assembly and an upper moving assembly arranged on the top of the lower moving assembly, the bag conveying device and the tilting device are arranged on the top of the upper moving assembly, one of the upper moving assembly and the lower moving assembly can horizontally move in a direction perpendicular to the tilting portion, and the other can horizontally move in a direction parallel to the tilting portion.

Optionally, the top of the upper moving assembly is further provided with a supporting device, the fixing portion of the tilting device is fixed to the supporting device, the ladle conveying device is close to and far away from two end portions of the ladle nozzle and is fixed to the upper moving assembly through supporting columns, the middle portion of the ladle conveying device is supported by the supporting device, the detecting element is a load sensor, and the load sensor is arranged between the upper moving assembly and the supporting device.

Optionally, still include the ladle cover subassembly, the ladle cover subassembly including be used for with water ladle body open end complex ladle cover, and be used for fixing the ladle cover support of ladle cover, the ladle cover support articulate in rotatory center pin, the portion of verting towards the lateral wall preset position of ladle cover support is provided with the gag lever post, under the natural state, the bottom of ladle cover support with the gag lever post offsets, the ladle cover is located water directly over the ladle body, the ladle cover with water the ladle body and have predetermined clearance, water ladle body tilting to predetermined angle can with the ladle cover offsets, drive the ladle cover verts in step.

Optionally, two ladle changing devices for changing the ladle device are further included, one for transferring the ladle device after use to a position away from the casting machine, and the other for transferring the ladle device containing the molten metal to a ladle delivery device of the casting machine.

The invention also discloses a control method of the automatic casting machine, the control method controls the automatic casting machine to cast the sand box on the sand box production line, the automatic casting machine is the automatic casting machine, the casting amount of the molten metal in the casting ladle body is detected, and when the casting amount reaches a set amount, the casting ladle device is controlled to rotate to stop casting.

The automatic casting machine control method monitors the whole casting process, automatically controls the casting machine to rotate to stop casting after the casting is finished, and realizes accurate casting, so that the automatic casting machine is more intelligent, the quality of castings is effectively improved, the participation of operators in the casting process is reduced, and the working strength and the operating environment of the operators are improved.

Optionally, the liquid level of the molten metal in the sand box is monitored, and when the liquid level of the molten metal reaches the pouring gate of the sand box, the ladle device is controlled to rotate to stop pouring.

Optionally, the automatic casting machine further comprises an inoculation device, the inoculation device comprises an inoculation ladle body, a material conveying pipeline and a material discharging pipeline which are connected in sequence, the inoculation ladle body is used for containing an inoculant, a screw shaft is axially arranged in the material conveying pipeline and used for conveying the inoculant, and a material outlet of the material discharging pipeline is positioned right above a material outlet of the ladle nozzle;

controlling the inoculation device to start when the molten metal flows out of the ladle nozzle;

monitoring the weight of the molten metal in the ladle body and the pouring time, and controlling the output quantity of the inoculant according to the pouring speed of the molten metal and the preset weight ratio of the molten metal to the inoculant.

Optionally, the operation state of the sand box production line is monitored, and when the sand box production line sends a box pushing signal, the automatic pouring machine is controlled to move synchronously with the sand box, and the sand box is poured in the moving process.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of an automatic casting machine according to the present invention;

FIG. 2 is a front view of the automatic casting machine of FIG. 1;

FIG. 3 is a top view of the automatic casting machine of FIG. 1 including a ladle changer;

FIG. 4 is a schematic diagram of the tilting arm of the automatic casting machine of FIG. 1;

FIG. 5 is a left side view of the ladle device of the automatic pouring machine of FIG. 1;

FIG. 6 is a front view of a ladle device in the automatic pouring machine of FIG. 1;

FIG. 7 is a top view of the ladle device of the automatic pouring machine of FIG. 1;

fig. 8 is a schematic structural view of the automatic casting machine of fig. 1 in a working state.

Wherein the reference numerals in fig. 1 to 8 are explained as follows:

1-ladle device; 11-a ladle body; 111-a hoist shaft; 12-ladle nozzle; a 121-V notch; 13-a ladle base; 131-a first groove; 132-a connecting shaft; 133-rectangular through holes;

2-a tilting device; 21-a fixed arm; 22-tilt arm; 221-a first tilting section; 222-a second tilt; 2221-second groove; 23-a limiting shaft; 24-a tilt wheel; 25-a hollow shaft reducer; 26-rotating the central shaft;

3-a load cell;

4-a packet delivery device; 41-roller track plate; 42-a roller; 421-a chain wheel; 43-hollow shaft reducer; 44-support columns;

5-inoculation device; 51-inoculating the ladle body; 52-conveying pipeline; 53-discharge line;

6-a mobile device; 61-an upper moving assembly; 611-an upper platform frame; 612-a slider; 62-lower moving assembly; 621-a lower platform frame; 622-wheel set; 623-a second guide rail; 63-a first guide rail; 64-a second drive; 65-a third drive; 651-servo motor; 652-ball screw; 653-a bearing block; 654-screw nut; 655-traversing the connecting rod;

7-supporting the platform;

8-a pack cover assembly; 81-covering; 82-a bag cover bracket; 821-a fixing member; 822-a connector;

9-a bag changing device; 91-rolling a track plate; 92-a roller; 921-chain wheel; 93-a chain; 94-hollow shaft reducer;

01-a sand box; 011-pouring gate.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

Herein, taking the orientation of fig. 8 as an example, the direction of the arrow in fig. 8 is the movement direction of the flask 01, and the movement direction along the flask 01 is the "longitudinal direction", and the movement direction perpendicular to the flask 01 is the "lateral direction", wherein the direction coinciding with the movement direction of the flask 01 is the "front", and the direction opposite to the movement direction of the flask 01 is the "rear".

Referring to fig. 1, fig. 2 and fig. 8, fig. 1 is a schematic structural diagram of an embodiment of an automatic casting machine according to the present invention; FIG. 2 is a front view of the automatic casting machine of FIG. 1; fig. 8 is a schematic structural view of the automatic casting machine of fig. 1 in a working state.

The invention provides an automatic casting machine, which comprises a ladle device 1 and a tilting device 2, wherein the ladle device 1 comprises a ladle body 11 and a ladle nozzle 12 which are communicated with each other, the ladle body 11 is used for containing molten metal, and the tilting device 2 can drive the ladle device 1 to tilt to a position where a discharge outlet of the ladle nozzle 12 can discharge the molten metal so as to pour the molten metal into a pouring port 011 of a sand box 01; the device also comprises a controller and a detection element, wherein the detection element is used for detecting the pouring amount of the metal liquid poured out of the ladle body 11, and the controller can control the tilting device 2 to drive the ladle device 1 to rotate and stop pouring under the condition that the pouring amount detected by the detection element reaches a set amount.

Further, the automatic casting machine of the present invention further comprises a first monitoring element for monitoring a liquid level of the molten metal poured into the sand box 01, and the controller can control the tilting device 2 to drive the ladle device 1 to rotate and stop pouring on the condition that the liquid level of the molten metal reaches the pouring port 011 of the sand box 01. In particular, the first monitoring element may be an image sensor or other light sensitive element.

The automatic casting machine further monitors the liquid level of the molten metal in the sand box 01 through the first monitoring element, controls the ladle device 1 to rotate when the liquid level of the molten metal reaches the pouring gate 011 of the sand box 01, and avoids the situation that only the pouring amount of the molten metal in the ladle body 11 is detected, when the pouring gate 011 of the sand box 01 is blocked and the liquid level of the molten metal reaches the pouring gate 011 of the sand box 01, the pouring amount of the molten metal does not reach a set amount, the ladle device 1 continues to pour the molten metal into the pouring gate 011 of the sand box 01, so that the molten metal flows out of the sand box 01, and safety accidents are caused. The pouring amount of the molten metal is monitored in a double monitoring mode, so that on one hand, the pouring precision of the automatic pouring machine is further improved, and the safety is improved; on the other hand, whether the internal flow channel of the sand box 01 is normal can be judged through the comparison of the two detection modes, so that the casting quality is improved, specifically, if the liquid level of the molten metal reaches the pouring port 011 of the sand box 01 and the detection element detects that the pouring amount of the molten metal in the ladle body 11 reaches a preset amount, the internal flow channel of the sand box 01 is normal and the sand box 01 is filled with the molten metal; if the detecting element detects that the pouring amount of the molten metal in the ladle body 11 has not reached the predetermined amount but the level of the molten metal has reached the pouring port 011 of the sand box 01, it can be confirmed that the flow passage inside the sand box 01 is clogged.

Referring to fig. 1 and fig. 2, the tilting device 2 of the automatic casting machine of the present invention includes two fixing portions and two tilting portions for driving the ladle device 1 to tilt, the two tilting portions are respectively hinged to the two fixing portions through two rotation center shafts 26, the ladle device 1 is located between the two tilting portions, and further includes a transmission portion and a driving portion, the transmission portion is arranged on the fixing portions, the transmission portion is in transmission connection with the tilting portions, the driving portion can drive the transmission portion to move so as to drive the tilting portions to rotate around the rotation center shafts 26, and the tilting portions drive the ladle device 1 to tilt synchronously.

Specifically, the fixing part is a fixing arm 21, the tilting part is a tilting arm 22, one end of the tilting arm 22 close to the ladle nozzle 12 is hinged to the fixing arm 21, the transmission part comprises a tilting wheel 24 and a connecting part, the driving part is a first driving part, specifically a hollow shaft speed reducer 25, an output shaft of the hollow shaft speed reducer 25 passes through the fixing arm 21 to be connected with the tilting wheel 24, the end face of the tilting arm 22, which faces away from the ladle nozzle 12, is an arc-shaped face with the hinged position of the tilting arm 22 and the fixing arm 21 as a circle center, namely, the circle center of the arc surface is on the axis of the rotating central shaft 26, the arc surface is connected with the tilting wheel 24 through a connecting part, the connecting part is a chain, one end of the chain is fixedly connected with the bottom end of the arc surface, the other end is wound on the tilting wheel 24, the hollow shaft reducer 25 can drive the tilting wheel 24 to rotate, the tilting arm 22 is rotated around the rotation center shaft 26 by a chain, and the tilting arm 22 can further drive the ladle device 1 to tilt.

The tilting device 2 of the present embodiment is provided with the first driving portions on the fixed arms 21 on both sides to pull the tilting arms 22 on both sides to rotate around the rotation center shaft 26 at the same time. The first driving parts on the two sides act synchronously, so that the stability of the tilting arm 22 can be improved, the deformation of the casting machine is reduced, and the service life of the automatic casting machine is prolonged; in addition, when the driving part on one side has a fault, the driving part on the other side can still maintain the normal operation of the casting machine within a certain time, and the operation efficiency of the automatic casting machine is improved.

In this embodiment, the first driving portion utilizes the hollow shaft reducer 25 to drive the tilting wheel 24 to rotate, and in practical applications, the first driving portion may also have other driving manners, for example, the first driving portion adopts a servo motor, an output shaft of the servo motor is provided with a driving gear, and the tilting wheel 24 is driven to rotate by a gear meshing manner, which is also feasible.

The tilt arm 22 of the present embodiment is connected to the tilt wheel 24 by a chain. In practice, the tilting arm 22 can be connected to the tilting wheel 24 by a chain, directly by means of a toothed engagement, or by means of a belt.

In addition, in the embodiment, the chain is fixedly connected with the bottom of the arc-shaped surface, and in practical application, the chain can be connected at any position of the arc-shaped surface, as long as the ladle device 1 can be tilted until the molten metal flows out of the ladle nozzle 12 when the tilting wheel 24 drives the tilting arm 22 to rotate.

In this embodiment, the transmission portion is the tilting wheel 24, and in practical applications, the transmission portion may have other embodiments, for example, an arc-shaped guide groove matched with the arc-shaped surface of the tilting arm 22 is provided on the fixed arm 21, the transmission portion is a connecting rod, one end of the connecting rod passes through the arc-shaped guide groove and is fixedly connected with the bottom of the end of the tilting arm 22 away from the ladle nozzle 12, and the driving portion drives the connecting rod to move in the arc-shaped guide groove and also can drive the tilting arm 22 to rotate around the central rotation shaft 26.

With continued reference to fig. 1, in this embodiment the axes of the two central rotating shafts 26 coincide, and the outlet of the nozzle 12 is on the axis of the central rotating shaft 26.

The outflow port of the ladle nozzle 12 is on the axis of the rotating central shaft 26, so that when the ladle device 1 rotates to any angle, the outflow port of the ladle nozzle 12 can be kept in the original position, the outflow position of the molten metal is ensured to be unchanged, and the molten metal can flow into the pouring port 011 of the sand box 01 all the time.

Further, please refer to fig. 4 to 7 to understand the specific structure and connection relationship between the ladle device 1 and the tilting arm 22. Fig. 4 is a schematic structural view of the tilting arm 22 of the automatic casting machine of fig. 1; fig. 5 is a left side view of the ladle device 1 in the automatic pouring machine of fig. 1; fig. 6 is a front view of the ladle device 1 in the automatic pouring machine of fig. 1; fig. 7 is a plan view of the ladle device 1 in the automatic pouring machine of fig. 1.

In the invention, the ladle body 11 is of a barrel structure with an opening at the upper end, a through hole is arranged on the side wall of the ladle body 11, the ladle body 11 is communicated with the ladle nozzle 12 through the through hole, a V-shaped notch 121 is arranged at the end part of the ladle nozzle 12, molten metal firstly flows to the sand box 01 from the vertex angle of the V-shaped notch 121, and the vertex angle of the V-shaped notch 121 is the outflow port of the ladle nozzle 12.

The casting ladle is of a teapot type structure, molten metal overflows from the casting ladle body 11 to the casting ladle nozzle 12, a good slag avoiding effect can be achieved during casting, and the rate of qualified products of castings is improved; in addition, the end part of the ladle nozzle 12 is provided with the V-shaped notch 121, so that on one hand, the ladle nozzle 12 can be better aligned with the pouring port 011 of the sand box 01, and further the whole pouring process is more stable; on the other hand, the outlet of the ladle nozzle 12 is always positioned on the axis of the rotation center shaft 26, and the position of the molten metal is kept constant.

Of course, the shape of the ladle nozzle 12 is not strictly limited as long as it is ensured that the ladle nozzle 12 has a certain position as a tapping point.

Referring to fig. 4 and 5, the bottom of the ladle body 11 of the present invention is further provided with a ladle base 13, an end surface of one end of the ladle base 13 close to the ladle nozzle 12 is provided with a first groove 131, two side walls of the ladle base 13 are both provided with a connecting shaft 132 at one end far from the ladle nozzle 12, the connecting shaft 132 is perpendicular to the rotation direction of the tilting arm 22, the tilting arm 22 specifically includes a fan-shaped first tilting portion 221 and a second tilting portion 222 disposed at the bottom of the first tilting portion 221, the second tilting portion 222 is of a rectangular parallelepiped structure, a limiting shaft 23 is disposed between the two second tilting portions 222 at one end close to the ladle nozzle 12, the second tilting portion 222 is provided with a second groove 2221 at one end far from the ladle nozzle 12, the limiting shaft 23 can be clamped in the first groove 131, and the connecting shaft 132 can be clamped in the second groove 2221. The connection mode of the ladle device 1 and the tilting arm 22 ensures that the ladle device 1 can keep stable in the pouring process.

In addition, in the present embodiment, the first tilting portion 221 has a fan-shaped structure, and the second tilting portion 222 has a rectangular parallelepiped structure, and in practical applications, the shapes of the first tilting portion 221 and the second tilting portion 222 are not limited strictly.

Further, the automatic casting machine of the present invention further includes a ladle conveying device 4, the ladle device 1 is supported by the ladle conveying device 4, the ladle conveying device 4 can drive the ladle device 1 to horizontally move along a direction parallel to the tilting device 2, so that the limiting shaft 23 is clamped inside the first groove 131, and the connecting shaft 132 is clamped inside the second groove 2221.

The position of the ladle device 1 can be adjusted by arranging the ladle conveying device 4, and when molten metal needs to be added into the ladle body 11, the ladle device 1 can be driven to move to a position far away from a working area; after sufficient metal has been added, the ladle device 1 can be driven back to the theoretical operating position by the ladle device 4.

Specifically, referring to fig. 2, in this embodiment, the package feeding device 4 includes two roller way plates 41 extending along the moving direction of the ladle device 1 and a plurality of rollers 42 connecting the two roller way plates 41, both ends of each roller 42 are provided with a central shaft, the roller way plates 41 are provided with mounting holes at corresponding positions, the central shafts are mounted in the corresponding mounting holes of the roller way plates 41 through bearings, the central shaft at the front end of each roller 42 extends outward and penetrates through the corresponding roller way plate 41, the extending portion of the central shaft is provided with a sprocket 421, each sprocket 421 at the end of each roller 42 is connected through a chain, the central shaft at the rear end of any roller 42 extends out of the corresponding roller way plate 41, the driving unit is a hollow shaft reducer 43, the hollow shaft reducer 43 is connected with the extending portion of the central shaft at the rear end of the roller 42, the hollow shaft reducer 43 drives the roller 42 to rotate, and further drives each roller 42 to synchronously move through the chain, the ladle device 1 is transferred to a predetermined position of the casting machine.

The ladle delivery device 4 is arranged to convey the ladle device 1 to a specified position of a casting machine, and is clamped and fixed with the tilting device 2, so that the position of the ladle device 1 does not need to be controlled manually, the position precision of the ladle device 1 can be effectively controlled, and the outflow port of the ladle nozzle 12 of the ladle device 1 can be ensured to be opposite to the pouring port 011 of the sand box 01. In the present embodiment, the ladle apparatus 1 is conveyed by the ladle conveying device 4 via the roller 42, but in practical applications, the ladle conveying device 4 may be a conveyor belt or another embodiment.

In the embodiment, the ladle device 1 is driven to be away from the working area by arranging the ladle conveying device 4 when the molten metal needs to be added, and in practical application, the ladle conveying device 4 is not arranged, and the molten metal can be added to the ladle device 1 in situ.

In addition, with continuing reference to fig. 5 and fig. 6, the ladle device 1 of the present embodiment is further provided with two rectangular through holes 133 extending along the transverse direction at the bottom of the ladle base 13 for connecting with a forklift during the moving process; two hanging shafts 111 are arranged on two sides of the ladle body 11 and are mainly used for being connected with a travelling crane in the moving process. In practical applications, the movement of the ladle device 1 may be realized by either a forklift or a traveling crane.

With continuing reference to fig. 1, the automatic casting machine of the present invention further includes an inoculating device 5, the inoculating device 5 includes an inoculating ladle body 51, a material conveying pipeline 52 and a material discharging pipeline 53, which are connected in sequence, the inoculating ladle body 51 is used for accommodating an inoculant, the material conveying pipeline 52 is arranged along a horizontal direction, a screw shaft is axially arranged inside the material conveying pipeline 52, the screw shaft is used for conveying the inoculant to a feeding hole of the material discharging pipeline 53, and a discharging hole of the material discharging pipeline 53 is located right above the ladle nozzle 12. The screw shaft is arranged in the material conveying pipeline 52, so that the output quantity of the inoculant can be better controlled, the metal liquid and the added inoculant can reach the preset ratio, and the performance of the casting can be further ensured; in addition, the discharge hole of the discharge pipeline 53 is positioned right above the ladle nozzle 12, inoculation is realized while metal liquid is poured, and the inoculation effect is better.

The automatic casting machine of the invention also comprises a second monitoring element which can monitor the outflow state of the molten metal of the ladle nozzle 12, in particular, when the second monitoring element monitors that the molten metal flows out of the ladle nozzle 12, the monitored information is transmitted to the controller, and the controller controls the inoculation device 5 to start and output the inoculant under the condition of the outflow signal of the molten metal fed back by the second monitoring element; the controller can also calculate the pouring speed of the molten metal and automatically adjust the output quantity of the inoculant according to the pouring time and the pouring quantity of the molten metal detected by the detection element, so that the output quantities of the molten metal and the inoculant can be matched.

In this embodiment, the first monitoring element and the second monitoring element are the same monitoring element, i.e., an image sensor, which monitors both the outflow state of the molten metal from the ladle nozzle 12 and the level of the molten metal poured into the flask 01. In practical applications, two image sensors may be provided to monitor the outflow state of the molten metal from the ladle nozzle 12 and the level of the molten metal poured into the flask 01.

In addition, in this embodiment, the position of the image sensor is set at the discharge port of the discharge pipeline 53, and in practical application, the position of the image sensor is not unique, as long as the monitoring accuracy of the image sensor can be ensured.

With continuing reference to fig. 1 and fig. 2, the automatic casting machine of the present invention further includes a moving device 6 disposed at the bottom of the package feeding device 4 and the tilting device 2, in this embodiment, the moving device 6 includes an upper moving assembly 61, a lower moving assembly 62 and a first rail 63 extending along the longitudinal direction, the lower moving assembly 62 includes a lower platform frame 621, rollers, specifically two wheel pairs 622 are disposed at the bottom of the lower platform frame 621, the lower platform frame 621 is supported on the first rail 63 through the two wheel pairs 622 at the bottom, a second rail 623 extending along the transverse direction is further disposed at the top of the lower platform frame 621, the upper moving assembly 61 includes an upper platform frame 611 and a slider 612 disposed at the bottom of the upper platform frame 611, the upper moving assembly 61 is mounted on the second rail 623 through the slider 612, and further includes a second driving part 64 and a third driving part 65, the second driving part 64 can drive the lower moving assembly 62 and the upper moving assembly 61 to move along the first rail 63 in the longitudinal direction, so that the casting machine can synchronously move with the sand box 01 to cast the sand box 01 in the moving process of the sand box 01; the third driving part 65 can drive the upper moving assembly 61 to move in the lateral direction along the second guide rail 623, and when the position of the pouring port 011 of the sand box 01 changes, the pouring nozzle 12 can be ensured to be always opposite to the pouring port 011 of the sand box 01 by the lateral moving pouring machine.

In this embodiment, the lower platform frame 621 and the first guide rail 63 are provided, and the lower platform frame 621 can move in the direction parallel to the movement direction of the sand box 01 along the first guide rail 63, so that the automatic casting machine of this embodiment can move synchronously with the sand box 01 to cast the sand box 01 in the moving process of the sand box 01, and the sand box 01 does not need to be stopped and then cast, thereby greatly shortening the casting time and improving the casting efficiency.

Specifically, referring to fig. 3, in the embodiment, the second driving portion 64 includes a servo motor, an output shaft of the servo motor is provided with a first gear, the first gear is used as a driving gear, an intermediate shaft of the rear wheel pair 622 of the lower platform frame 621 is provided with a second gear, the second gear is used as a driven gear, and the rotation of the output shaft of the servo motor can be transmitted to the intermediate shaft of the wheel pair 622 through the engagement between the first gear and the second gear, so as to drive the whole casting machine to move along the first guide rail 63.

In this embodiment, the second driving portion 64 and the wheel pair 622 realize power transmission through gear engagement, and in practical application, there may be other driving manners, such as chain and sprocket transmission, hollow shaft reducer driving, and the like. In addition, in this embodiment, the second driving portion 64 is disposed at the rear end of the lower platform frame 621, and the wheel set 622 at the rear end is used as a driving wheel.

In this embodiment, the third driving unit 65 includes a servo motor 651 and a screw nut transmission unit, wherein a ball screw 652 in the screw nut transmission unit is mounted on the top of the lower platform support frame through a bearing block 653 in a direction parallel to the second guide rail 623, a screw nut 654 mounted on the ball screw 652 is fixedly connected to the upper platform support frame through a traversing connection rod 655, when the position of the pouring port 011 of the sand box 01 changes, the servo motor 651 drives the ball screw 652 to rotate, and the screw nut 654 drives the upper platform frame 611 to move laterally, so as to ensure that the pouring nozzle 12 can always face the pouring port 011 of the sand box 01. In practical application, besides screw rod and nut transmission, gear and rack transmission is also a feasible scheme.

The moving means 6 in this embodiment is provided with two upper and lower platform frames, the upper platform frame 611 and the lower platform frame 621 being able to move in the longitudinal direction by the first rail 63 in cooperation with the wheel pair 622, and the upper platform frame 611 being able to move in the transverse direction by the second rail 623 in cooperation with the slider 612, so that the movement of the ladle device 1 in the transverse direction and the longitudinal direction is achieved. In practical applications, the connection mode is not limited, and the bottom of the lower platform frame 621 may be configured as a sliding block to cooperate with the first guiding rail 63; the top of the lower platform frame 621 may be provided with a guide groove extending in the transverse direction, and the upper platform frame 611 moves in the guide groove through the guide portion, and also can move in the transverse direction. Of course, if the lower platform frame 621 is provided to move in the lateral direction, it is also possible that the upper platform frame 611 moves in the longitudinal direction on top of the lower platform frame 621.

In addition, in practical application, the moving device 6 is not limited to the embodiment of the present embodiment, for example, the moving device 6 may also be a moving trolley, which controls the movement of the moving trolley in the transverse direction and the longitudinal direction, and also can control the position of the ladle device 1.

Referring to fig. 1 and fig. 2, the automatic casting machine of the present embodiment further includes a supporting device, specifically a rectangular frame-shaped supporting platform 7, at the top of the upper platform frame 611, the fixing arm 21 is fixed to the supporting platform 7, supporting columns 44 are respectively disposed at two ends of the roller board 41 of the package feeding device 4 close to and far from the ladle nozzle 12, two ends of the package feeding device 4 are fixed to the upper platform frame 611 through the supporting columns 44, the middle of the package feeding device 4 is supported on the supporting platform 7, the detecting element is specifically a load sensor 3, and the load sensors 3 are disposed between the supporting platform 7 and the upper platform frame 611, specifically at four corners.

The load sensors 3 are arranged at the four corners between the supporting platform 7 and the upper platform frame 611, so that the weight of the molten metal in the casting ladle body 11 can be monitored in real time, the output quantity of the inoculant and the casting weight of the molten metal are intelligently controlled, the casting ladle device 1 can automatically rotate to stop casting when the casting is finished, the casting state is not required to be monitored manually, the automatic casting machine is more intelligent, and the participation of operators in the casting process is reduced; in addition, the weight of the inoculant can be better matched with the molten metal, and the quality of the casting is further improved.

Of course, the support platform 7 may have other shapes, and the number and the positions of the load sensors 3 are not limited as long as the detection accuracy of the load sensors 3 can be ensured.

Please continue referring to fig. 2, the automatic casting machine of this embodiment further includes a ladle cover assembly 8, the ladle cover assembly 8 includes a ladle cover 81 for cooperating with the top opening end of the ladle body 11, and a ladle cover bracket 82 for fixing the ladle cover 81, the ladle cover bracket 82 includes a fixing member 821 for connecting the ladle cover 81 and two connecting members 822 vertically disposed at two end portions of the fixing member 821, the other end of the connecting member 822 is hinged to the rotating central shaft 26, a position-limiting rod is disposed at a predetermined position of a sidewall of the tilting arm 22 facing the connecting member 822, in a natural state, the connecting member 822 is supported on the position-limiting rod, the ladle cover 81 is located right above the ladle body 11, the ladle cover 81 and the ladle body 11 have a predetermined gap, the ladle body 11 can be tilted to a predetermined angle and abut against the ladle cover 81, so as to drive the ladle cover 81 to tilt synchronously.

In the ladle cover assembly 8 of the present embodiment, the ladle cover bracket 82 is hinged to the rotation center shaft 26, and when the ladle device 1 is tilted to a certain angle, the ladle cover 81 automatically fits the open end of the top of the ladle body 11, and the ladle cover 81 rotates around the rotation center shaft 26 together with the ladle device 1 under the pushing action of the ladle device 1; after pouring, the ladle device 1 rotates to a certain angle, the bottom wall of the connecting piece 822 abuts against the limiting rod and cannot continue to rotate with the ladle device 1, and therefore the ladle cover 81 and the ladle body 11 are automatically separated. The arrangement realizes synchronous rotation of the ladle cover 81 and the ladle device 1 and automatic separation of the ladle cover 81 and the ladle device 1, and has simple structure.

Of course, in practical applications, the specific structure of the bag cover bracket 82 is not strictly limited as long as the connection stability of the bag cover 81 can be ensured.

Further, the automatic casting machine of the present invention is further provided with a bag replacing device 9, please refer to fig. 3 to understand the structure of the bag replacing device 9 of the present embodiment. Fig. 3 is a top view of the automatic casting machine of fig. 1 including a ladle changer 9.

The automatic pouring machine of the present invention is provided with two ladle exchanging devices 9 for exchanging the ladle devices 1, one ladle exchanging device 9 for transferring the used ladle devices 1 to a position away from the pouring machine, and the other ladle exchanging device 9 for transferring the ladle devices 1 filled with the molten metal to the ladle delivery device 4 of the pouring machine.

In this embodiment, two ladle exchanging devices 9 are provided, and when the used ladle device 1 is transferred to one of the ladle exchanging devices 9, the casting machine is moved as a whole to the ladle transfer device 4 so as to be opposed to the other ladle exchanging device 9, and the ladle device 1 filled with the molten metal and supported by the ladle exchanging device 9 is transferred to a predetermined position of the casting machine, so that the time for switching the ladle device 1 is greatly reduced, and the work efficiency is effectively improved.

Specifically, referring to fig. 3, the structure of the ladle replacing device 9 in this embodiment is the same as that of the ladle conveying device 4, and includes two roller way plates 91 and a plurality of rollers 92 located between the two roller way plates 91, the connecting shaft at the front end of each roller 92 extends outward and penetrates through the corresponding roller way plate 91, the connecting shaft extending portion is provided with a sprocket 921, each sprocket 921 is connected by a chain 93, the connecting shaft at the rear end of any one roller 92 extends out of the corresponding roller way plate 91, the driving unit is a hollow shaft reducer 94, the hollow shaft reducer 94 is connected with the extending portion of the connecting shaft at the rear end of the roller 92, the hollow shaft reducer 94 drives the roller 92 to rotate, and then the chain 93 drives each roller 92 to synchronously move, so as to realize the conveying of the ladle device 1.

The working process of the automatic casting machine is as follows:

firstly, a ladle device 1 filled with molten metal is placed at the top of a ladle changing device 9 by a crane or a forklift, the ladle changing device 9 conveys the ladle device 1 to a ladle conveying device 4, the ladle conveying device 4 conveys the ladle device 1 to a preset position of a casting machine, namely, a limiting shaft 23 connected with a tilting arm 22 is clamped and fixed inside a first groove 131 of a ladle body 11, and connecting shafts 132 on two side walls of the ladle device 1 are clamped and fixed inside a second groove 2221;

secondly, monitoring the running state of the sand box production line, when the sand box production line sends a box pushing signal, judging the speed of the sand box 01 by the controller, controlling the casting machine to synchronously move with the sand box 01 at the same speed, ensuring that the relative position of the casting machine and the sand box 01 is unchanged in the moving process of the sand box 01, and casting the sand box 01 in the moving process;

thirdly, the tilting device 2 drives the ladle device 1 to tilt, and when the ladle device 1 tilts to a certain angle, the ladle cover 81 is matched with the opening end of the top of the ladle body 11; the casting ladle device 1 continues to tilt, when the image sensor monitors that the molten metal in the casting ladle nozzle 12 flows out, the casting is judged to start, the inoculation device 5 is started, the load sensor 3 and the image sensor monitor the casting state in real time, and when the image sensor monitors that the liquid level of the molten metal reaches the pouring gate 011, the casting ladle device 1 is controlled to rotate and the casting is stopped; at this time, if the load sensor 3 detects that the pouring amount of the molten metal reaches a preset amount, the internal flow channel of the sand box 01 is normal, and the sand box 01 is filled with the molten metal; if the load sensor 3 detects that the pouring amount of the molten metal does not reach the preset amount, the internal flow passage of the sand box 01 is blocked; in the process, the output quantity of the inoculant can be automatically adjusted according to the pouring speed of the molten metal and the preset weight ratio of the molten metal to the inoculant;

finally, the pouring ladle device 1 rotates, when the bottom wall of the ladle cover bracket 82 in the ladle cover assembly 8 abuts against the limiting rod, the ladle cover assembly 8 cannot rotate continuously, the ladle cover 81 is automatically separated from the pouring ladle body 11, the pouring ladle device 1 returns to the original position, and the pouring process is completed.

And when the next box pushing signal is sent by the sand box production line, moving the casting machine to be opposite to the next sand box 01, synchronously moving the casting machine and the sand box 01, and repeating the steps to cast the next sand box 01.

When the volume of the molten metal in the ladle device 1 is insufficient and the next pouring can not be carried out, the ladle conveying device 4 conveys the ladle device 1 to a working area where the ladle changing device 9 exits from a pouring machine, and the molten metal is added; and moving the casting machine to be opposite to the other ladle changing device 9, and conveying the ladle device 1 filled with the molten metal on the other ladle changing device 9 to a preset position of the casting machine for next casting.

The invention also provides a control method of the automatic casting machine, which controls the automatic casting machine to cast the sand box 01 on the sand box production line, detects the casting amount of the molten metal in the casting ladle body 11 based on the automatic casting machine, and controls the casting ladle device 1 to rotate and stop casting when the casting amount of the molten metal in the casting ladle body 11 reaches a preset amount.

Further, the liquid level of the molten metal in the flask 01 is monitored, and when the liquid level of the molten metal reaches the pouring port 011 of the flask 01, the ladle device 1 is controlled to rotate and stop pouring.

Further, when the molten metal flows out of the ladle nozzle 12, the inoculation device 5 is controlled to start; the weight of the molten metal and the pouring time in the ladle body 11 are monitored, and the output amount of the inoculant is controlled according to the pouring speed of the molten metal and the preset weight ratio of the molten metal to the inoculant.

Further, the running state of the production line of the sand box 01 is monitored, when the production line sends out a box pushing signal, the automatic pouring machine is controlled to move synchronously with the sand box 01, and the sand box 01 is poured in the moving process.

The automatic casting machine and the control method provided by the invention are described in detail, the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the examples is only used for helping to understand the method and the core idea of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. An automatic casting machine which is characterized in that: the tilting device (2) can drive the ladle device (1) to tilt to a position where an outflow port of the ladle nozzle (12) can flow out the molten metal;

the ladle pouring device is characterized by further comprising a controller and a detection element, wherein the detection element is used for detecting the pouring amount of the molten metal poured out of the ladle body (11), and the controller can control the tilting device (2) to drive the ladle device (1) to rotate under the condition that the pouring amount detected by the detection element reaches a set amount.

2. The automatic casting machine of claim 1, wherein: the automatic tilting device comprises a sand box (01) and is characterized by further comprising a first monitoring element, wherein the first monitoring element is used for monitoring the liquid level of molten metal poured in the sand box (01), and the controller can control the tilting device (2) to drive the ladle device (1) to rotate under the condition that the liquid level of the molten metal reaches a pouring gate (011) of the sand box (01).

3. The automatic casting machine of claim 1, wherein: device (2) vert include two fixed parts and be used for the drive water two portions of verting of ladle device (1), two the portion of verting articulates in two through two rotation center axle (26) respectively the fixed part, water ladle device (1) and be located two between the portion of verting, still including set up in the transmission portion and the drive division of fixed part, the transmission portion be used for with the transmission of the portion of verting is connected, the drive division can drive the action of transmission portion is in order to drive the portion of verting winds rotation center axle (26) rotates, the portion of verting drives water ladle device (1) and vert in step.

4. The automatic casting machine of claim 3, wherein: the axes of the two central axes of rotation (26) coincide, the outflow opening of the ladle nozzle (12) being on the axis of the central axis of rotation (26).

5. The automatic casting machine of claim 4, wherein: the portion of verting is close to the one end of watering packet mouth (12) articulate in the fixed part, transmission portion is including tilting wheel (24) and connecting portion, tilting portion dorsad the terminal surface of watering packet mouth (12) be with tilting portion with the articulated department of fixed part is the arcwall face of the centre of a circle, connecting portion one end with arcwall face fixed connection, the other end is around locating tilting wheel (24).

6. The automatic casting machine of claim 5, wherein: the ladle device (1) further comprises a ladle base (13) arranged at the bottom of the ladle body (11), the ladle base (13) is close to one end of the ladle nozzle (12) and is provided with a first groove (131), two side walls of the ladle base (13) are far away from one end of the ladle nozzle (12) and are provided with a connecting shaft (132), the connecting shaft (132) is perpendicular to the rotating direction of the tilting part, a limiting shaft (23) is arranged between the tilting part and is close to one end of the ladle nozzle (12), one end of the tilting part far away from the ladle nozzle (12) is provided with a second groove (2221), the limiting shaft (23) can be clamped in the first groove (131), and the connecting shaft (132) can be clamped in the second groove (2221).

7. The automatic casting machine of claim 6, wherein: the ladle casting device comprises a ladle conveying device (4), the ladle casting device (1) is supported on the ladle conveying device (4), the ladle conveying device (4) can drive the ladle casting device (1) to horizontally move along the direction parallel to the tilting part, so that the limiting shaft (23) is clamped in the first groove (131), and the connecting shaft (132) is clamped in the second groove (2221).

8. The automatic casting machine of claim 4, wherein: still include inoculation device (5), inoculation device (5) are including inoculation package body (51), defeated material pipeline (52) and ejection of compact pipeline (53) that connect in order, inoculation package body (51) are used for holding the inoculant, defeated material pipeline (52) inside is provided with the screw axis along the axial, the screw axis is used for conveying the inoculant, the discharge gate of ejection of compact pipeline (53) is located directly over watering a mouthful (12) play stream outlet.

9. The automatic casting machine of claim 8, wherein: further comprising a second monitoring element capable of monitoring the outflow of said molten metal from said nozzle (12), said controller being capable of controlling the activation of said inoculating device (5) on condition of a molten metal outflow signal monitored by said second monitoring element.

10. The automatic casting machine of claim 7, wherein: still include mobile device (6), mobile device (6) including move down subassembly (62) and set up in move up subassembly (61) at subassembly (62) top down, send chartered plane device (4) with tilting device (2) all set up in the top of moving up subassembly (61), go up move subassembly (61) with one in the subassembly (62) that moves down can be along the perpendicular to the direction horizontal migration of tilting portion, the other can be along the direction horizontal migration that is on a parallel with tilting portion.

11. The automatic casting machine of claim 10, wherein: the top of going up movable assembly (61) still is provided with strutting arrangement, the fixed part of tilting device (2) is fixed in strutting arrangement, send a packet device (4) to be close to and keep away from the both ends of watering ladle mouth (12) are fixed in through support column (44) go up movable assembly (61), send the middle part of packet device (4) to support in strutting arrangement, detecting element is load sensor (3), load sensor (3) set up in go up movable assembly (61) with between the strutting arrangement.

12. The automatic casting machine according to any one of claims 3 to 11, wherein: still include ladle cover subassembly (8), ladle cover subassembly (8) including be used for with water ladle body (11) open top end complex ladle cover (81), and be used for fixing ladle cover support (82) of ladle cover (81), ladle cover support (82) articulate in rotation center pin (26), the portion of overturning towards the lateral wall preset position of ladle cover support (82) is provided with the gag lever post, under the natural state, the bottom of ladle cover support (82) with the gag lever post offsets, ladle cover (81) are located water directly over ladle body (11), ladle cover (81) with water ladle body (11) and have predetermined clearance, water ladle body (11) and vert predetermined angle can with ladle cover (81) offset, drive ladle cover (81) verts in step.

13. The automatic casting machine of claim 7, wherein: and two ladle changing devices (9) for changing the ladle device (1), wherein one ladle changing device (9) is used for conveying the used ladle device (1) to a position far away from the casting machine, and the other ladle changing device (9) is used for conveying the ladle device (1) filled with the molten metal to a ladle conveying device (4) of the casting machine.

14. A control method of an automatic casting machine which controls the automatic casting machine to cast a flask (01) on a flask production line, the automatic casting machine being the automatic casting machine according to any one of claims 1 to 13, characterized in that: and detecting the casting amount of the molten metal in the casting ladle body (11), and controlling the casting ladle device (1) to rotate to stop casting when the casting amount reaches a set amount.

15. The control method of the automatic casting machine according to claim 14, wherein: monitoring the liquid level height of the molten metal in the sand box (01), and controlling the ladle device (1) to rotate to stop pouring when the liquid level height of the molten metal reaches a pouring gate (011) of the sand box (01).

16. The control method of the automatic casting machine according to claim 15, wherein: the automatic casting machine further comprises an inoculation device (5), the inoculation device (5) comprises an inoculation ladle body (51), a material conveying pipeline (52) and a material discharging pipeline (53) which are connected in sequence, the inoculation ladle body (51) is used for containing an inoculant, a screw shaft is axially arranged in the material conveying pipeline (52) and used for conveying the inoculant, and a material outlet of the material discharging pipeline (53) is positioned right above a material outlet of the ladle nozzle (12);

controlling the inoculation device (5) to start when the molten metal flows out of the ladle nozzle (12);

monitoring the weight of the molten metal and the pouring time in the ladle body (11), and controlling the output quantity of the inoculant according to the pouring speed of the molten metal and the preset weight ratio of the molten metal to the inoculant.

17. The control method of the automatic casting machine according to claim 16, wherein: and monitoring the running state of the sand box production line, controlling the automatic casting machine to synchronously move with the sand box (01) when the sand box production line sends a box pushing signal, and casting the sand box (01) in the moving process.