Automatic pouring machine and control method

Abstract

The present invention discloses an automatic pouring machine, comprising 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 interconnected, wherein the ladle body (11) is used to contain molten metal, and the tilting device (2) can drive the ladle device (1) to tilt to a position where the molten metal can flow out of the outlet of the ladle nozzle (12); the automatic pouring machine also comprises a controller and a detection element, wherein the detection element is used to detect 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 when the pouring amount detected by the detection element reaches a set amount. The present invention also provides a control method for the automatic pouring machine. The automatic pouring machine and the control method of the present invention monitor the entire pouring process in real time, and automatically control the pouring machine to rotate and stop pouring after the pouring is completed, which is more intelligent and effectively improves the quality of castings.

Description

Technical Field

[0001] The invention relates to the technical field of metal casting, and in particular to an automatic pouring machine and a control method. Background Art

[0002] In the casting production process, pouring molten iron is the most labor-intensive link, and it is also the link where safety accidents are prone to occur.

[0003] There are two implementation methods for the existing casting process. One is to manually operate the ladle, connect the molten iron in the ladle and transport it to the molding box for pouring. The pouring process requires manual identification, the accuracy is not high, and it is affected by the work intensity, which is very likely to cause safety accidents and has the disadvantage of low work efficiency; the other is to pour in a semi-automatic way, adding a tilting device on both sides of the ladle to achieve dumping. This casting method also requires manual monitoring of the pouring process, the workers have high labor intensity and low efficiency, which affects the accuracy of the casting. Summary of the invention

[0004] The present invention discloses an automatic pouring machine, comprising a ladle device and a tilting device, wherein the ladle device comprises a ladle body and a ladle nozzle which are interconnected, the ladle body is used to contain molten metal, and the tilting device can drive the ladle device to tilt to a position where an outlet of the ladle nozzle can flow out the molten metal;

[0005] It also includes a controller and a detection element, wherein the detection element is used to detect the pouring amount of the molten metal poured out of the ladle body. 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.

[0006] The automatic pouring machine of the present invention is provided with a detection element to monitor the entire pouring process in real time, and after the pouring is completed, the controller automatically controls the pouring machine to rotate and stop pouring, thereby achieving precise pouring, making the automatic pouring machine of the present invention more intelligent, effectively improving the quality of castings, reducing the operator's participation in the pouring process, and improving the operator's work intensity and operating environment.

[0007] Optionally, it also includes a first monitoring element, which is used to monitor the liquid level of the molten metal poured into the sand box. The controller can control the tilting device to drive the ladle device to rotate based on the condition that the liquid level of the molten metal reaches the pouring port of the sand box.

[0008] Optionally, the tilting device includes two fixed parts and two tilting parts for driving the ladle device to tilt, the two tilting parts are respectively hinged to the two fixed parts through two rotation center axes, the ladle device is located between the two tilting parts, and also includes a transmission part and a driving part arranged on the fixed parts, the transmission part is used for transmission connection with the tilting part, the driving part can drive the transmission part to move to drive the tilting part to rotate around the rotation center axis, and the tilting part drives the ladle device to tilt synchronously.

[0009] Optionally, the axes of the two rotation center axes coincide with each other, and the outlet of the ladle nozzle is on the axes of the rotation center axes.

[0010] Optionally, one end of the tilting portion close to the ladle nozzle is hinged to the fixed portion, the transmission portion includes a tilting wheel and a connecting portion, the end surface of the tilting portion facing away from the ladle nozzle is an arcuate surface with the hinge between the tilting portion and the fixed portion as the center, one end of the connecting portion is fixedly connected to the arcuate surface, and the other end is wrapped around the tilting wheel.

[0011] Optionally, the ladle device also includes a ladle base arranged at the bottom of the ladle body, a first groove is provided at one end of the ladle base close to the ladle nozzle, connecting shafts are provided at the two side walls of the ladle base at the end away from the ladle nozzle, the connecting shaft is perpendicular to the rotation direction of the tilting part, a limiting shaft is provided between the two tilting parts at one end close to the ladle nozzle, and a second groove is provided at the end of the tilting part away from the ladle nozzle, the limiting shaft can be clamped in the first groove, and the connecting shaft can be clamped in the second groove.

[0012] Optionally, a ladle delivery device is further included, the ladle device is supported by the ladle delivery device, and the ladle delivery device can drive the ladle device to move horizontally in a direction parallel to the tilting portion, so that the limiting shaft is fixed in the first groove and the connecting shaft is fixed in the second groove.

[0013] Optionally, an inoculation device is also included, which includes an inoculation ladle body, a feed pipeline and a discharge pipeline connected in sequence, the inoculation ladle body is used to contain the inoculant, a spiral shaft is axially arranged inside the feed pipeline, the spiral shaft is used to convey the inoculant, and the discharge port of the discharge pipeline is located directly above the outlet of the ladle nozzle.

[0014] Optionally, a second monitoring element is further included, and the second monitoring element can monitor the outflow state of the molten metal in the ladle nozzle. The controller can control the start-up of the inoculation device based on the molten metal outflow signal monitored by the second monitoring element.

[0015] Optionally, a moving device is also included, which includes a lower moving component and an upper moving component arranged on the top of the lower moving component, the package delivery device and the tilting device are both arranged on the top of the upper moving component, and one of the upper moving component and the lower moving component can move horizontally in a direction perpendicular to the tilting portion, and the other can move horizontally in a direction parallel to the tilting portion.

[0016] Optionally, a supporting device is further provided on the top of the upper movable component, the fixed portion of the tilting device is fixed to the supporting device, the two ends of the ladle delivery device close to and away from the ladle nozzle are fixed to the upper movable component through supporting columns, the middle portion of the ladle delivery device is supported by the supporting device, the detecting element is a load sensor, and the load sensor is arranged between the upper movable component and the supporting device.

[0017] Optionally, it also includes a ladle cover assembly, which includes a ladle cover for cooperating with the top open end of the ladle body, and a ladle cover bracket for fixing the ladle cover, the ladle cover bracket is hinged to the rotation center axis, and a limit rod is provided at a predetermined position of the side wall of the tilting portion facing the ladle cover bracket. In a natural state, the bottom of the ladle cover bracket abuts against the limit rod, the ladle cover is located directly above the ladle body, the ladle cover and the ladle body have a predetermined gap, and the ladle body can be tilted to a predetermined angle to abut against the ladle cover, thereby driving the ladle cover to tilt synchronously.

[0018] Optionally, two ladle changing devices for replacing the ladle device are further included, one of the ladle changing devices is used to transport the used ladle device to a location away from the pouring machine, and the other of the ladle changing devices is used to transport the ladle device filled with the molten metal to the ladle delivery device of the pouring machine.

[0019] The present invention also provides a control method for an automatic pouring machine, the control method controls the automatic pouring machine to pour sand boxes on a sand box production line, the automatic pouring machine is the aforementioned automatic pouring machine, the pouring amount of molten metal inside the ladle body is detected, and when the pouring amount reaches a set amount, the ladle device is controlled to rotate and stop pouring.

[0020] The automatic pouring machine control method of the present invention monitors the entire pouring process, and automatically controls the pouring machine to rotate and stop pouring after pouring is completed, thereby achieving precise pouring, making the automatic pouring machine of the present invention more intelligent, effectively improving the quality of castings, reducing the operator's participation in the pouring process, and improving the operator's work intensity and operating environment.

[0021] Optionally, the liquid level of the molten metal inside the sand box is monitored, and when the liquid level of the molten metal reaches the pouring port of the sand box, the ladle device is controlled to rotate and stop pouring.

[0022] Optionally, the automatic pouring machine further comprises an inoculation device, the inoculation device comprises an inoculation ladle body, a feeding pipeline and a discharging pipeline connected in sequence, the inoculation ladle body is used to contain the inoculant, a spiral shaft is axially arranged inside the feeding pipeline, the spiral shaft is used to convey the inoculant, and the discharging port of the discharging pipeline is located directly above the outlet of the ladle nozzle;

[0023] When the molten metal flows out of the ladle nozzle, controlling the inoculation device to start;

[0024] The weight of the molten metal inside the ladle body and the pouring time are monitored, and the output of the inoculant is controlled according to the pouring speed of the molten metal and a preset weight ratio of the molten metal to the inoculant.

[0025] Optionally, the operating status 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 during the movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A structural schematic diagram of a specific embodiment of the automatic pouring machine provided by the present invention;

[0027] Figure 2 for Figure 1 The main view of the automatic pouring machine;

[0028] Figure 3 for Figure 1 A top view of the automatic pouring machine including the bag changing device;

[0029] Figure 4 for Figure 1 Schematic diagram of the structure of the tilting arm in the automatic pouring machine;

[0030] Figure 5 for Figure 1 Left view of the ladle device in the automatic pouring machine;

[0031] Figure 6 for Figure 1 The front view of the ladle device in the automatic pouring machine;

[0032] Figure 7 for Figure 1 A top view of the ladle device in the automatic pouring machine;

[0033] Figure 8 for Figure 1Schematic diagram of the structure of the automatic pouring machine in working state.

[0034] in, Figures 1 to 8 The reference numerals in the drawings are described as follows:

[0035] 1- ladle device; 11- ladle body; 111- hanging shaft; 12- ladle nozzle; 121- V-shaped notch; 13- ladle base; 131- first groove; 132- connecting shaft; 133- rectangular through hole;

[0036] 2-tilting device; 21-fixed arm; 22-tilting arm; 221-first tilting part; 222-second tilting part; 2221-second groove; 23-limiting shaft; 24-tilting wheel; 25-hollow shaft reducer; 26-rotating center shaft;

[0037] 3- Load sensor;

[0038] 4-package delivery device; 41-roller plate; 42-roller; 421-sprocket; 43-hollow shaft reducer; 44-support column;

[0039] 5-inoculation device; 51-inoculation bag body; 52-feeding pipeline; 53-discharging pipeline;

[0040] 6-moving device; 61-upper moving assembly; 611-upper platform frame; 612-sliding block; 62-lower moving assembly; 621-lower platform frame; 622-wheel set; 623-second guide rail; 63-first guide rail; 64-second driving unit; 65-third driving unit; 651-servo motor; 652-ball screw; 653-bearing seat; 654-screw nut; 655-transverse connecting rod;

[0041] 7-Support platform;

[0042] 8-cover assembly; 81-cover; 82-cover bracket; 821-fixing member; 822-connecting member;

[0043] 9-bag changing device; 91-roller plate; 92-drum; 921-sprocket; 93-chain; 94-hollow shaft reducer;

[0044] 01-sand box; 011-pouring port. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0046] In this article, Figure 8 For example, Figure 8The direction of the middle arrow is the movement direction of the sand box 01. The movement direction along the sand box 01 is "longitudinal", and the movement direction perpendicular to the sand box 01 is "lateral". Among them, the direction consistent with the movement direction of the sand box 01 is "forward", and the direction opposite to the movement direction of the sand box 01 is "rearward".

[0047] Please refer to Figure 1 , Figure 2 and Figure 8 , Figure 1 A structural schematic diagram of a specific embodiment of the automatic pouring machine provided by the present invention; Figure 2 for Figure 1 The main view of the automatic pouring machine; Figure 8 for Figure 1 Schematic diagram of the structure of the automatic pouring machine in working state.

[0048] The present invention provides an automatic pouring machine, comprising a ladle device 1 and a tilting device 2, the ladle device 1 comprising a ladle body 11 and a ladle nozzle 12 which are interconnected, the ladle body 11 being used to contain molten metal, the tilting device 2 being able to drive the ladle device 1 to tilt to a position where the outlet of the ladle nozzle 12 can flow out the molten metal, so as to pour the molten metal into a pouring port 011 of a sand box 01; the automatic pouring machine also comprises a controller and a detection element, the detection element being used to detect the pouring amount of the molten metal poured out of the ladle body 11, the controller being able to control the tilting device 2 to drive the ladle device 1 to rotate and stop pouring, on the condition that the pouring amount detected by the detection element reaches a set amount.

[0049] The automatic pouring machine of the present invention is provided with a detection element to monitor the entire pouring process in real time, and after the pouring is completed, the controller automatically controls the pouring machine to rotate and stop pouring, thereby achieving precise pouring, making the automatic pouring machine of the present invention more intelligent, effectively improving the quality of castings, reducing the operator's participation in the pouring process, and improving the operator's work intensity and operating environment.

[0050] Furthermore, the automatic pouring machine of the present invention further includes a first monitoring element, which is used to monitor the liquid level of the molten metal poured into the sand box 01. The controller can control the tilting device 2 to drive the ladle device 1 to rotate and stop pouring when the liquid level of the molten metal reaches the pouring port 011 of the sand box 01. Specifically, the first monitoring element can be an image sensor or other photosensitive element.

[0051] The automatic pouring machine of the present invention also monitors the liquid level of the molten metal in the sand box 01 through the first monitoring element, and controls the rotation of the ladle device 1 when the liquid level of the molten metal reaches the pouring port 011 of the sand box 01, so as to avoid only detecting the pouring amount of the molten metal in the ladle body 11. When the pouring port 011 of the sand box 01 is blocked and the liquid level of the molten metal has reached the pouring port 011 of the sand box 01, the pouring amount of the molten metal has not reached the set amount, and the ladle device 1 continues to pour the molten metal into the pouring port 011 of the sand box 01, causing the molten metal to flow out of the sand box 01, causing a safety accident. The pouring amount of the molten metal is monitored by a dual monitoring method. On the one hand, the pouring accuracy of the automatic pouring machine of the present invention is further improved and the safety is improved; on the other hand, the two detection methods can be used to compare and judge whether the internal flow channel of the sand box 01 is normal, thereby improving the quality of the casting. 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 predetermined amount, then the internal flow channel of the sand box 01 is normal and the molten metal has filled the sand box 01; if the detection element detects that the pouring amount of the molten metal in the ladle body 11 has not reached the predetermined amount, but the liquid level of the molten metal has reached the pouring port 011 of the sand box 01, it can be proved that the internal flow channel of the sand box 01 is blocked.

[0052] Please continue to refer to Figure 1 and Figure 2 The tilting device 2 of the automatic pouring machine of the present invention includes two fixed parts and two tilting parts for driving the ladle device 1 to tilt. The two tilting parts are hinged to the two fixed parts through two rotation center axes 26 respectively. The ladle device 1 is located between the two tilting parts and also includes a transmission part and a driving part arranged on the fixed part. The transmission part is used for transmission connection with the tilting part. The driving part can drive the transmission part to drive the tilting part to rotate around the rotation center axis 26. The tilting part drives the ladle device 1 to tilt synchronously.

[0053] Specifically, the fixed part is a fixed arm 21, and 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 fixed arm 21. The transmission part includes a tilting wheel 24 and a connecting part. The driving part is a first driving part, specifically a hollow shaft reducer 25. The output shaft of the hollow shaft reducer 25 passes through the fixed arm 21 and is connected to the tilting wheel 24. The end surface of the tilting arm 22 facing away from the ladle nozzle 12 is an arc surface with the hinge of the tilting arm 22 and the fixed arm 21 as the center of the circle, that is, the center of the arc surface is on the axis of the rotation center axis 26. The arc surface is connected to the tilting wheel 24 through a connecting part. The connecting part is specifically a chain. One end of the chain is fixedly connected to the bottom end of the arc surface, and the other end is wound around the tilting wheel 24. The hollow shaft reducer 25 can drive the tilting wheel 24 to rotate, and drive the tilting arm 22 to rotate around the rotation center axis 26 through the chain. The tilting arm 22 can then drive the ladle device 1 to tilt.

[0054] The tilting device 2 of this embodiment is provided with a first driving part on both sides of the fixed arms 21 to pull the tilting arms 22 on both sides to rotate around the rotation center axis 26 at the same time. The first driving parts on both sides act synchronously, which can improve the stability of the tilting arms 22, reduce the deformation of the pouring machine, and extend the service life of the automatic pouring machine of the present invention; in addition, when the driving part on one side fails, the driving part on the other side can still maintain the normal operation of the pouring machine for a certain period of time, thereby improving the operation efficiency of the automatic pouring machine of the present invention.

[0055] In this embodiment, the first driving unit utilizes a hollow shaft reducer 25 to drive the tilting wheel 24 to rotate. In practical applications, the first driving unit may also have other driving modes. For example, the first driving unit utilizes a servo motor, and the output shaft of the servo motor is provided with a driving gear, and the tilting wheel 24 is driven to rotate by gear meshing. This is also feasible.

[0056] The tilt arm 22 of this embodiment is connected to the tilt wheel 24 via a chain. In practical applications, the tilt arm 22 can be connected to the tilt wheel 24 by a chain, or directly connected by teeth meshing or by a belt.

[0057] In addition, in this embodiment, the chain is fixedly connected to the bottom of the arc surface. In actual applications, the chain can be connected to any position of the arc surface, as long as it is ensured that when the tilting wheel 24 drives the tilting arm 22 to rotate, the ladle device 1 can be tilted until the molten metal flows out of the ladle nozzle 12.

[0058] In this embodiment, the transmission part is a tilting wheel 24. In actual applications, the transmission part can also have other implementations, such as providing an arc guide groove matching the arc surface of the tilting arm 22 on the fixed arm 21, and the transmission part is a connecting rod, one end of the connecting rod passes through the arc guide groove and is fixedly connected to the bottom of the end of the tilting arm 22 away from the ladle nozzle 12. The driving part drives the connecting rod to move in the arc guide groove, and can also drive the tilting arm 22 to rotate around the rotation center axis 26.

[0059] Please continue to refer to Figure 1 In this embodiment, the axes of the two rotation center axes 26 coincide with each other, and the outlet of the ladle nozzle 12 is on the axis of the rotation center axis 26 .

[0060] The outlet of the ladle nozzle 12 is on the axis of the rotating central axis 26, so that when the ladle device 1 rotates to any angle, the outlet of the ladle nozzle 12 can remain in place, ensuring that the position where the molten metal flows out remains unchanged, thereby ensuring that the molten metal can always flow into the pouring port 011 of the sand box 01.

[0061] For further information, please refer to Figures 4 to 7 Understand the specific structure and connection relationship between the ladle device 1 and the tilting arm 22 in the present invention. Figure 4 for Figure 1A schematic diagram of the structure of the tilting arm 22 in the automatic pouring machine; Figure 5 for Figure 1 A left view of a ladle device 1 in an automatic pouring machine; Figure 6 for Figure 1 A front view of a ladle device 1 in an automatic pouring machine; Figure 7 for Figure 1 A top view of a pouring ladle device 1 in an automatic pouring machine.

[0062] In the present invention, the ladle body 11 is a barrel structure with an open upper end. The side wall of the ladle body 11 is provided with a through hole. The ladle body 11 is connected with the ladle nozzle 12 through the through hole. A V-shaped notch 121 is provided at the end of the ladle nozzle 12. The molten metal first flows to the sand box 01 from the top corner of the V-shaped notch 121. The top corner of the V-shaped notch 121 is the outlet of the ladle nozzle 12.

[0063] The ladle of the present invention is arranged as a teapot-type structure, and the molten metal overflows from the ladle body 11 to the ladle nozzle 12, which can play a good slag avoidance effect during pouring and improve the authenticity rate of castings; in addition, a V-shaped notch 121 is arranged at the end of the ladle nozzle 12, on the one hand, so that the ladle nozzle 12 can be better aligned with the pouring port 011 of the sand box 01, thereby making the entire pouring process smoother; on the other hand, the outlet of the ladle nozzle 12 can always be on the axis of the rotating central shaft 26, ensuring that the position where the molten metal flows out remains unchanged.

[0064] Of course, there is no strict restriction on the shape of the ladle nozzle 12, as long as the ladle nozzle 12 has a certain position as the outlet.

[0065] Please refer to Figure 4 and Figure 5 In the present invention, a ladle base 13 is further provided at the bottom of the ladle body 11. A first groove 131 is provided at the end surface of the ladle base 13 near the ladle nozzle 12. A connecting shaft 132 is provided at the end away from the ladle nozzle 12 on both side walls of the ladle base 13. 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 provided at the bottom of the first tilting portion 221. The second tilting portion 222 is a rectangular parallelepiped structure. A limiting shaft 23 is provided between the two second tilting portions 222 at one end near the ladle nozzle 12. The second tilting portion 222 is provided with a second groove 2221 at one end away from the ladle nozzle 12. The limiting shaft 23 can be fixed in the first groove 131, and the connecting shaft 132 can be fixed in the second groove 2221. The connection method between the ladle device 1 and the tilting arm 22 of the present invention enables the ladle device 1 to remain stable during the pouring process.

[0066] In addition, in this embodiment, the first tilting portion 221 is a fan-shaped structure, and the second tilting portion 222 is a rectangular parallelepiped structure. In practical applications, the shapes of the first tilting portion 221 and the second tilting portion 222 are not strictly limited.

[0067] Furthermore, the automatic pouring machine of the present invention also includes a ladle feeding device 4, and the ladle feeding device 4 is supported by the ladle feeding device 4. The ladle feeding device 4 can drive the ladle device 1 to move horizontally in a direction parallel to the tilting device 2, so that the limit shaft 23 is clamped in the first groove 131, and the connecting shaft 132 is clamped in the second groove 2221.

[0068] By setting up the ladle delivery device 4, the position of the ladle device 1 can be adjusted. When it is necessary to add molten metal to the inside of the ladle body 11, the ladle device 1 can be driven to move away from the working area; after adding enough molten metal, the ladle delivery device 4 can drive the ladle device 1 back to the theoretical working position.

[0069] Specifically, please refer to Figure 2 In this embodiment, the ladle delivery device 4 includes two roller plates 41 extending along the moving direction of the ladle device 1 and a plurality of rollers 42 connecting the two roller plates 41. Both ends of the roller 42 are provided with a central axis. The roller plate 41 is provided with a mounting hole at a corresponding position. The central axis is installed in the corresponding mounting hole of the roller plate 41 through a bearing. The central axis of the front end of the roller 42 extends outward and passes through the corresponding roller plate 41. A sprocket 421 is provided on the protruding part of the central axis. The sprockets 421 at the ends of the roller 42 are connected by a chain. The central axis of the rear end of any roller 42 extends out of the corresponding roller plate 41. The driving unit is a hollow shaft reducer 43. The hollow shaft reducer 43 is connected to the protruding part of the central axis of the rear end of the roller 42. The hollow shaft reducer 43 drives the roller 42 to rotate, and then drives each roller 42 to move synchronously through the chain to transport the ladle device 1 to the predetermined position of the pouring machine.

[0070] The ladle delivery device 4 is provided to deliver the ladle device 1 to the designated position of the pouring machine, and is fixed to the tilting device 2. The position of the ladle device 1 does not need to be manually controlled, and the position accuracy of the ladle device 1 can be effectively controlled to ensure that the outlet of the ladle nozzle 12 of the ladle device 1 can be opposite to the pouring port 011 of the sand box 01. In addition, in this embodiment, the ladle delivery device 4 delivers the ladle device 1 through the roller 42. In actual applications, the ladle delivery device 4 can also be other embodiments such as a conveyor belt.

[0071] In this embodiment, the ladle delivery device 4 is provided to drive the ladle device 1 away from the working area when molten metal needs to be added. In actual applications, it is also feasible to add molten metal to the ladle device 1 in situ without providing the ladle delivery device 4.

[0072] In addition, please continue to refer to Figure 5 and Figure 6 The ladle device 1 of this embodiment is also provided with two rectangular through holes 133 extending in the horizontal direction at the bottom of the ladle base 13, which are used to connect with a forklift during the movement; and two suspension shafts 111 are also provided on both sides of the ladle body 11, which are mainly used to connect with a traveling crane during the movement. In practical applications, the ladle device 1 can be moved by either a forklift or a traveling crane.

[0073] Please continue to refer to Figure 1 The automatic pouring machine of the present invention further comprises an inoculation device 5, which comprises an inoculation ladle body 51, a feeding pipeline 52 and a discharging pipeline 53 connected in sequence. The inoculation ladle body 51 is used to contain an inoculant, the feeding pipeline 52 is arranged in a horizontal direction, and a spiral shaft is arranged axially inside the feeding pipeline 52. The spiral shaft is used to convey the inoculant to the feed port of the discharging pipeline 53, and the discharging port of the discharging pipeline 53 is located directly above the ladle nozzle 12. By arranging the spiral shaft in the feeding pipeline 52, the output amount of the inoculant can be better controlled to ensure that the ratio of the molten metal to the added inoculant reaches a preset value, thereby ensuring the performance of the casting; in addition, the discharging port of the discharging pipeline 53 is located directly above the ladle nozzle 12, and inoculation is achieved while pouring the molten metal, and the inoculation effect is better.

[0074] The automatic pouring machine of the present invention also includes a second monitoring element, which can monitor the outflow state of the molten metal from the ladle nozzle 12. Specifically, when the second monitoring element detects that the molten metal flows out of the ladle nozzle 12, the monitored information is transmitted to the controller. The controller controls the inoculation device 5 to start and output the inoculant based on 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 of the inoculant according to the pouring time and the pouring amount of the molten metal detected by the detection element to ensure that the output of the molten metal and the inoculant can match.

[0075] In this embodiment, the first monitoring element and the second monitoring element are the same monitoring element, that is, an image sensor, that is, the image sensor monitors both the outflow state of the molten metal from the ladle nozzle 12 and the liquid 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 liquid level of the molten metal poured into the flask 01, respectively.

[0076] In addition, in the present embodiment, the image sensor is disposed at the discharge port of the discharge pipeline 53. In practical applications, the position where the image sensor is disposed is not unique, as long as the monitoring accuracy of the image sensor can be guaranteed.

[0077] Please continue to refer to Figure 1 and Figure 2The automatic pouring machine of the present invention further comprises a moving device 6 arranged at the bottom of the bag feeding device 4 and the tilting device 2. In this embodiment, the moving device 6 comprises an upper moving assembly 61, a lower moving assembly 62 and a first guide rail 63 extending in the longitudinal direction. The lower moving assembly 62 comprises a lower platform frame 621. Rollers are arranged at the bottom of the lower platform frame 621, specifically two transversely arranged wheel pairs 622. The lower platform frame 621 is supported on the first guide rail 63 by the two wheel pairs 622 at the bottom. A second guide rail 623 extending in the transverse direction is also arranged at the top of the lower platform frame 621. The upper moving assembly 61 comprises an upper platform frame 611 and a roller arranged at the bottom of the upper platform frame 611. The upper moving component 61 is installed on the second guide rail 623 through the slider 612, and also includes a second driving part 64 and a third driving part 65. The second driving part 64 can drive the lower moving component 62 and the upper moving component 61 to move longitudinally along the first guide rail 63, so that when the sand box 01 moves, the pouring machine can move synchronously with the sand box 01 to pour the sand box 01; the third driving part 65 can drive the upper moving component 61 to move laterally along the second guide rail 623. When the position of the pouring port 011 of the sand box 01 changes, the pouring machine can be moved laterally to ensure that the ladle nozzle 12 is always opposite to the pouring port 011 of the sand box 01.

[0078] In the present embodiment, a lower platform frame 621 and a first guide rail 63 are provided, and the lower platform frame 621 can move along the first guide rail 63 in a direction parallel to the movement of the sand box 01, so that the automatic pouring machine of the present embodiment can move synchronously with the sand box 01, and pour the sand box 01 during the movement of the sand box 01 without stopping the sand box 01 and then pouring the sand box 01, which can greatly shorten the pouring time and improve the pouring efficiency.

[0079] Specifically, please refer to Figure 3 In this embodiment, the second driving part 64 includes a servo motor, and the output shaft of the servo motor is provided with a first gear, and the first gear serves as a driving gear. The intermediate shaft of the rear end wheel pair 622 of the lower platform frame 621 is provided with a second gear, and the second gear serves as a driven gear. Through the engagement of the first gear and the second gear, the rotation of the output shaft of the servo motor can be transmitted to the intermediate shaft of the wheel pair 622, thereby driving the casting machine as a whole to move along the first guide rail 63.

[0080] In this embodiment, the second driving unit 64 and the wheel pair 622 realize power transmission by gear meshing. In practical applications, there may be other driving modes, such as chain sprocket drive, hollow shaft reducer drive, etc. In addition, in this embodiment, the second driving unit 64 is arranged at the rear end of the lower platform frame 621, and the wheel pair 622 at the rear end is used as a driving wheel. In practical applications, the second driving unit 64 may also be arranged alone or simultaneously at the front end of the lower platform frame 621, and the wheel pair 622 at the front end may be alone or simultaneously used as a driving wheel to realize the overall longitudinal movement of the automatic pouring machine of the present invention.

[0081] In this embodiment, the third driving part 65 includes a servo motor 651 and a screw nut transmission unit, wherein the ball screw 652 in the screw nut transmission unit is installed on the top of the lower platform support frame through a bearing seat 653 in a direction parallel to the second guide rail 623, and the screw nut 654 installed on the ball screw 652 is fixedly connected to the upper platform support frame through a transverse connecting 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 then the screw nut 654 drives the upper platform frame 611 to move horizontally, ensuring that the ladle nozzle 12 can always be opposite to the pouring port 011 of the sand box 01. In practical applications, in addition to the screw nut transmission, gear rack transmission is also a feasible solution.

[0082] In this embodiment, the mobile device 6 is provided with an upper and a lower platform frame. The upper platform frame 611 and the lower platform frame 621 can move in the longitudinal direction by cooperating with the first guide rail 63 and the wheel pair 622. The upper platform frame 611 can move in the transverse direction by cooperating with the second guide rail 623 and the slider 612, so as to realize the transverse and longitudinal movement of the ladle device 1. In practical applications, the connection method is not limited. For example, the bottom of the lower platform frame 621 can also be provided with a slider to cooperate with the first guide rail 63; the top of the lower platform frame 621 can be provided with a guide groove extending in the transverse direction, and the upper platform frame 611 can also realize transverse movement by moving in the guide groove through the guide part. Of course, if the lower platform frame 621 is provided to move in the transverse direction, it is also feasible for the upper platform frame 611 to move in the longitudinal direction at the top of the lower platform frame 621.

[0083] In addition, in practical applications, the moving device 6 is not limited to the implementation of this embodiment. For example, the moving device 6 can also be a moving cart. By controlling the lateral and longitudinal movement of the moving cart, the position of the casting ladle device 1 can also be controlled.

[0084] Please continue to refer to Figure 1 and Figure 2The automatic pouring machine of this embodiment is further provided with a supporting device on the top of the upper platform frame 611, which is specifically a rectangular frame-shaped supporting platform 7. The fixed arm 21 is fixed to the supporting platform 7. The roller plate 41 of the ladle feeding device 4 is respectively provided with supporting columns 44 at both ends close to and far away from the ladle nozzle 12. The two ends of the ladle feeding device 4 are fixed to the upper platform frame 611 through the supporting columns 44. The middle part of the ladle feeding device 4 is supported on the supporting platform 7. The detection element is specifically a load sensor 3. The load sensor 3 is arranged between the supporting platform 7 and the upper platform frame 611, specifically at the four corners.

[0085] By arranging load sensors 3 at the four corners between the supporting platform 7 and the upper platform frame 611, the weight of the molten metal inside the ladle body 11 can be monitored in real time, and then the output of the inoculant and the pouring weight of the molten metal can be intelligently controlled, so that the ladle device 1 can automatically rotate and stop pouring when the pouring is completed, without the need for manual monitoring of the pouring status, making the automatic pouring machine of the present invention more intelligent and reducing the operator's participation in the pouring process; in addition, the weight of the inoculant can be better matched with the molten metal, thereby improving the quality of the casting.

[0086] Of course, the supporting platform 7 may also be in other shapes, and there is no limitation on the number and position of the load sensors 3 , as long as the detection accuracy of the load sensors 3 can be guaranteed.

[0087] Please continue to refer to Figure 2 The automatic pouring machine of this embodiment also includes a ladle cover assembly 8, which includes a ladle cover 81 for cooperating with the top open 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 arranged at both ends of the fixing member 821. The other end of the connecting member 822 is hinged to the rotation center axis 26. A limiting rod is provided at a predetermined position of the side wall of the tilting arm 22 facing the connecting member 822. In a natural state, the connecting member 822 is supported on the limiting rod. The ladle cover 81 is located directly above the ladle body 11. There is a predetermined gap between the ladle cover 81 and the ladle body 11. When the ladle body 11 is tilted to a predetermined angle, it can be against the ladle cover 81, thereby driving the ladle cover 81 to tilt synchronously.

[0088] In the ladle cover assembly 8 of this embodiment, the ladle cover bracket 82 is hinged to the rotation center axis 26. When the ladle device 1 tilts to a certain angle, the ladle cover 81 will automatically cooperate with the open end at the top of the ladle body 11. The ladle cover 81 rotates around the rotation center axis 26 together with the ladle device 1 under the push of the ladle device 1. After the pouring is completed, the ladle device 1 rotates to a certain angle, and the bottom wall of the connecting member 822 abuts against the limit rod and cannot continue to rotate with the ladle device 1, thereby realizing the automatic separation of the ladle cover 81 from the ladle body 11. This setting realizes the synchronous rotation of the ladle cover 81 and the ladle device 1, and realizes the automatic separation of the ladle cover 81 and the ladle device 1, and the structure is simple.

[0089] Of course, in practical applications, the specific structure of the cover bracket 82 is not strictly limited, as long as the connection stability of the cover 81 can be guaranteed.

[0090] Furthermore, the automatic pouring machine of the present invention is also provided with a bag changing device 9, please refer to Figure 3 , understand the structure of the package changing device 9 of this embodiment. Figure 3 for Figure 1 The automatic pouring machine includes a top view of the bag changing device 9.

[0091] The automatic pouring machine of the present invention is provided with two ladle changing devices 9 for replacing the ladle device 1, one ladle changing device 9 is used to transport the used ladle device 1 to a location away from the pouring machine, and the other ladle changing device 9 is used to transport the ladle device 1 filled with molten metal to the ladle delivery device 4 of the pouring machine.

[0092] In the present embodiment, two ladle changing devices 9 are provided. When the used ladle device 1 is transferred to one of the ladle changing devices 9, the pouring machine as a whole moves to the ladle delivery device 4 opposite to the other ladle changing device 9, and the ladle device 1 filled with molten metal and supported by the ladle changing device 9 is transferred to a predetermined position of the pouring machine. This arrangement greatly reduces the time for switching the ladle device 1 and effectively improves the work efficiency.

[0093] Specifically, please refer to Figure 3 The structure of the bag changing device 9 in this embodiment is the same as that of the bag delivering device 4, including two roller plates 91 and a plurality of rollers 92 located between the two roller plates 91. The connecting shaft at the front end of the roller 92 extends outward and passes through the corresponding roller plate 91. The protruding part of the connecting shaft is provided with a sprocket 921. The sprockets 921 are connected by a chain 93. The connecting shaft at the rear end of any roller 92 extends out of the corresponding roller plate 91. The driving unit is a hollow shaft reducer 94. The hollow shaft reducer 94 is connected to the protruding part 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 drives the rollers 92 to move synchronously through the chain 93 to realize the transmission of the ladle device 1.

[0094] The working process of the automatic pouring machine of the present invention is as follows:

[0095] First, a crane or a forklift is used to place the ladle device 1 filled with molten metal on the top of the ladle changing device 9, and the ladle changing device 9 transports the ladle device 1 to the ladle conveying device 4, and the ladle conveying device 4 transports the ladle device 1 to a predetermined position of the pouring machine, that is, the limit shaft 23 connected to the tilting arm 22 is clamped in the first groove 131 of the ladle body 11, and the connecting shafts 132 on the two side walls of the ladle device 1 are clamped in the second groove 2221;

[0096] Secondly, the running status of the sand box production line is monitored. When the sand box production line sends a push signal, the controller determines the speed of the sand box 01 and controls the pouring machine to move synchronously with the sand box 01 at the same speed to ensure that the relative position of the pouring machine and the sand box 01 remains unchanged during the movement of the sand box 01. At this time, the sand box 01 can be poured during the movement;

[0097] Again, the tilting device 2 drives the ladle device 1 to tilt. When the ladle device 1 tilts to a certain angle, the ladle cover 81 cooperates with the open end at the top of the ladle body 11; the ladle device 1 continues to tilt. When the image sensor detects that the molten metal flows out of the ladle nozzle 12, it is judged that the pouring starts, and the inoculating device 5 is started at the same time. The load sensor 3 and the image sensor monitor the pouring state in real time. When the image sensor detects that the liquid level of the molten metal reaches the pouring port 011, the ladle device 1 is controlled to rotate and the pouring is stopped. At this time, if the load sensor 3 detects that the pouring amount of the molten metal reaches the predetermined amount, the internal flow channel of the sand box 01 is normal and the molten metal has filled the sand box 01; if the load sensor 3 detects that the pouring amount of the molten metal has not reached the predetermined amount, the internal flow channel of the sand box 01 is blocked; in this process, according to the pouring speed of the molten metal and the preset weight ratio of the molten metal to the inoculant, the output amount of the inoculant can be automatically adjusted;

[0098] Finally, the ladle device 1 rotates, and 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 continue to rotate, the ladle cover 81 is automatically separated from the ladle body 11, the ladle device 1 returns to its original position, and the pouring process is completed.

[0099] When the sand box production line sends out the next push box signal, the pouring machine is moved to be opposite to the next sand box 01, and the pouring machine and the sand box 01 are moved synchronously, and the above steps are repeated to pour the next sand box 01.

[0100] When the capacity of the molten metal in the ladle device 1 is insufficient and the next pouring cannot be carried out, the ladle delivery device 4 transports the ladle device 1 to the ladle changing device 9 to exit the working area of ​​the pouring machine and add molten metal; then the pouring machine is moved to face another ladle changing device 9, and the ladle device 1 filled with molten metal on the other ladle changing device 9 is transported to a predetermined position of the pouring machine so that the next pouring can be carried out.

[0101] The present invention also provides a control method for an automatic pouring machine, which controls the automatic pouring machine to pour the sand box 01 on the sand box production line. Based on the aforementioned automatic pouring machine, the amount of molten metal poured out of the ladle body 11 is detected. When the amount of molten metal poured out of the ladle body 11 reaches a predetermined amount, the ladle device 1 is controlled to rotate and stop pouring.

[0102] Furthermore, the liquid level of the molten metal inside the sand box 01 is monitored, and when the liquid level of the molten metal reaches the pouring port 011 of the sand box 01, the ladle device 1 is controlled to rotate and stop pouring.

[0103] Furthermore, 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 inside the ladle body 11 are monitored, and the output 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.

[0104] Furthermore, the operating status of the sand box 01 production line is monitored. When the production line sends 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 during the movement.

[0105] The above is a detailed introduction to an automatic pouring machine and a control method provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An automatic pouring machine, characterized in that: The invention 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 connected to each other, the ladle body (11) is used to contain molten metal, and the tilting device (2) can drive the ladle device (1) to tilt to a position where the outlet of the ladle nozzle (12) can flow out the molten metal; It also includes a controller and a detection element, wherein the detection element is used to detect 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; The tilting device (2) comprises two fixed parts and two tilting parts for driving the ladle device (1) to tilt, the two tilting parts are respectively hinged to the two fixed parts via two rotation center axes (26), the ladle device (1) is located between the two tilting parts, and also comprises a transmission part and a driving part arranged on the fixed parts, the transmission part is used for transmission connection with the tilting parts, the driving part can drive the transmission part to move so as to drive the tilting parts to rotate around the rotation center axes (26), and the tilting part drives the ladle device (1) to tilt synchronously; The invention also comprises a ladle cover assembly (8), wherein the ladle cover assembly (8) comprises a ladle cover (81) for cooperating with the top open end of the ladle body (11), and a ladle cover bracket (82) for fixing the ladle cover (81), wherein the ladle cover bracket (82) is hinged to the rotation center axis (26), and a limit rod is provided at a predetermined position of the side wall of the tilting portion facing the ladle cover bracket (82). In a natural state, the bottom of the ladle cover bracket (82) abuts against the limit rod, and the ladle cover (81) is located directly above the ladle body (11). There is a predetermined gap between the ladle cover (81) and the ladle body (11). When the ladle body (11) is tilted to a predetermined angle, it can abut against the ladle cover (81), thereby driving the ladle cover (81) to tilt synchronously.

2. The automatic pouring machine according to claim 1, characterized in that: It also includes a first monitoring element, which is used to monitor the liquid level of the molten metal poured into the sand box (01). 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 the pouring port (011) of the sand box (01).

3. The automatic pouring machine according to claim 1, characterized in that: The axes of the two rotation center axes (26) coincide with each other, and the outlet of the ladle nozzle (12) is on the axis of the rotation center axis (26).

4. The automatic pouring machine according to claim 3, characterized in that: One end of the tilting part close to the ladle nozzle (12) is hinged to the fixed part, and the transmission part includes a tilting wheel (24) and a connecting part. The end surface of the tilting part facing away from the ladle nozzle (12) is an arcuate surface with the hinge point between the tilting part and the fixed part as the center. One end of the connecting part is fixedly connected to the arcuate surface, and the other end is arranged around the tilting wheel (24).

5. The automatic pouring machine according to claim 4, characterized in that: The ladle device (1) further comprises a ladle base (13) arranged at the bottom of the ladle body (11); a first groove (131) is arranged at one end of the ladle base (13) close to the ladle nozzle (12); connecting shafts (132) are arranged on both side walls of the ladle base (13) at the end away from the ladle nozzle (12); the connecting shafts (132) are perpendicular to the rotation direction of the tilting parts; a limiting shaft (23) is arranged between the two tilting parts at one end close to the ladle nozzle (12); a second groove (2221) is arranged at one end of the tilting part away from the ladle nozzle (12); the limiting shaft (23) can be fixed in the first groove (131); and the connecting shaft (132) can be fixed in the second groove (2221).

6. The automatic pouring machine according to claim 5, characterized in that: The ladle device (1) is supported by the ladle device (4), and the ladle device (4) is capable of driving the ladle device (1) to move horizontally in a direction parallel to the tilting portion, so that the limiting shaft (23) is fixed inside the first groove (131), and the connecting shaft (132) is fixed inside the second groove (2221).

7. The automatic pouring machine according to claim 3, characterized in that: The invention also comprises an inoculation device (5), wherein the inoculation device (5) comprises an inoculation ladle body (51), a material delivery pipeline (52) and a discharge pipeline (53) connected in sequence, wherein the inoculation ladle body (51) is used to contain an inoculant, a spiral shaft is axially arranged inside the material delivery pipeline (52), and the spiral shaft is used to convey the inoculant, and the discharge port of the discharge pipeline (53) is located directly above the outlet of the ladle nozzle (12).

8. The automatic pouring machine according to claim 7, characterized in that: It also includes a second monitoring element, which can monitor the outflow state of the molten metal in the ladle nozzle (12), and the controller can control the start-up of the inoculation device (5) based on the molten metal outflow signal monitored by the second monitoring element.

9. The automatic pouring machine according to claim 6, characterized in that: The invention also comprises a moving device (6), wherein the moving device (6) comprises a lower moving component (62) and an upper moving component (61) arranged on the top of the lower moving component (62), the package delivery device (4) and the tilting device (2) are both arranged on the top of the upper moving component (61), and one of the upper moving component (61) and the lower moving component (62) can move horizontally in a direction perpendicular to the tilting portion, and the other can move horizontally in a direction parallel to the tilting portion.

10. The automatic pouring machine according to claim 9, characterized in that: A supporting device is also provided at the top of the upper moving component (61), the fixed portion of the tilting device (2) is fixed to the supporting device, the two ends of the ladle delivery device (4) close to and away from the ladle nozzle (12) are fixed to the upper moving component (61) through supporting columns (44), the middle part of the ladle delivery device (4) is supported by the supporting device, and the detection element is a load sensor (3), which is arranged between the upper moving component (61) and the supporting device.

11. The automatic pouring machine according to claim 6, characterized in that: It also includes two ladle changing devices (9) for replacing the ladle device (1), one of the ladle changing devices (9) is used to transport the ladle device (1) after use to a location away from the casting machine, and the other of the ladle changing devices (9) is used to transport the ladle device (1) filled with the molten metal to the ladle delivery device (4) of the casting machine.

12. A control method for an automatic pouring machine, wherein the control method controls the automatic pouring machine to pour a sand box (01) on a sand box production line, wherein the automatic pouring machine is the automatic pouring machine according to any one of claims 1 to 11, and is characterized in that: The pouring amount of the molten metal inside the ladle body (11) is detected, and when the pouring amount reaches a set amount, the ladle device (1) is controlled to rotate and stop pouring; 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) cooperates with the open end at the top of the ladle body (11); The ladle device (1) rotates, and when the bottom wall of the ladle cover support (82) in the ladle cover assembly (8) abuts against the limiting rod, the ladle cover assembly (8) cannot continue to rotate, and the ladle cover (81) and the ladle body (11) are automatically separated.

13. The control method of the automatic pouring machine according to claim 12, characterized in that: The liquid level of the molten metal inside the sand box (01) is monitored, and when the liquid level of the molten metal reaches the pouring port (011) of the sand box (01), the ladle device (1) is controlled to rotate and stop pouring.

14. The control method of the automatic pouring machine according to claim 13, characterized in that: The automatic pouring machine further comprises an inoculation device (5), the inoculation device (5) comprising an inoculation ladle body (51), a material delivery pipeline (52) and a material discharge pipeline (53) connected in sequence, the inoculation ladle body (51) being used to contain an inoculant, a spiral shaft being axially arranged inside the material delivery pipeline (52), the spiral shaft being used to convey the inoculant, and a discharge port of the material discharge pipeline (53) being located directly above an outlet of the ladle nozzle (12); When the molten metal flows out of the ladle nozzle (12), controlling the inoculation device (5) to start; The weight of the molten metal and the pouring time inside the ladle body (11) are monitored, and the output of the inoculant is controlled according to the pouring speed of the molten metal and a preset weight ratio of the molten metal to the inoculant.

15. The control method of the automatic pouring machine according to claim 14, characterized in that: The operating status 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 (01), and pouring is performed on the sand box (01) during the movement.

Images