A sand core molding device for producing a steel ingot mold, an intelligent integrated casting device, and a casting method thereof

Abstract

The application relates to the technical field of intelligent casting, in particular to a sand core molding device for producing a steel ingot mold, an intelligent integrated casting equipment and a casting method thereof. The sand core molding device comprises a rack, two groups of molding molds capable of relative movement are arranged on the rack, and the two groups of molding molds can rotate relative to the rack; a sand shooting head is arranged on the rack and can shoot casting sand towards the space between the two groups of molding molds; a mounting platform is detachably mounted on the rack, the mounting platform is rotationally connected with the sand shooting head, and the mounting platform and the sand shooting head are connected through a second electric telescopic rod; the second electric telescopic rod can drive the sand shooting head to change the inclination angle; and a sliding assembly is connected with the mounting platform and the sand shooting head, the sliding assembly can make the sand shooting head produce transverse movement when the inclination angle of the sand shooting head changes, thereby improving the sand shooting and pressure maintaining effects.

Description

Technical Field

[0001] This invention relates to the field of intelligent casting technology, specifically to a sand core molding device for producing steel ingot molds, an intelligent integrated casting equipment, and a casting method thereof. Background Technology

[0002] In the casting process, sand cores play a crucial role. They are mainly used to construct the internal structure and complex shape of castings, and play a decisive role in the precision and quality of castings. Currently, in the production of sand cores, sand shooting machines are the most frequently used equipment. These machines consist of two sets of molds that can be opened and closed. When the two sets of molds are put together, a forming chamber is formed. The working process of the sand shooting machine is that the sand shooting head sprays casting sand into the forming chamber, and then the sand core is formed through a pressure holding process.

[0003] To ensure that the casting sand fully fills every corner of the molding cavity, most sand-shooting machines currently employ a two-stage sand-shooting process. Specifically, after the first sand-shooting, the molding mold rotates 180°, followed by a second sand-shooting. During this process, the flow characteristics of the casting sand ensure that the molding cavity is completely and perfectly filled. However, the problem lies in the fact that the device driving the molding mold to rotate, namely the drive motor, often has a 3% to 5% error probability when rotating the molding mold. This causes the upper surface of the molding mold to not be horizontal after rotating 180°. As a result, when the sand-shooting head acts on the upper surface of the molding mold, a certain gap will be formed between the two. This not only makes it difficult to accurately control the amount of sand injected, but also fails to achieve the ideal sealing effect in the subsequent sealing and pressure-holding molding process, thus affecting the molding quality of the sand core and ultimately impacting the quality of the casting. Summary of the Invention

[0004] The purpose of this invention is to provide a sand core molding device for producing steel ingot molds, an intelligent integrated casting equipment and casting method thereof, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A sand core molding apparatus for producing steel ingot molds includes:

[0007] A frame, on which two sets of forming molds are capable of relative movement, and the two sets of forming molds are capable of rotating relative to the frame;

[0008] A sand injection head is mounted on the frame and is capable of injecting casting sand between the two sets of forming molds.

[0009] A mounting platform is detachably mounted on the frame, and the mounting platform is rotationally connected with the sand shooting head, and the mounting platform is connected with the sand shooting head through a second electric telescopic rod, and the second electric telescopic rod can drive the sand shooting head to change the inclination angle;

[0010] A sliding assembly is connected with the mounting platform and the sand shooting head, and the sliding assembly can make the sand shooting head produce lateral movement when the inclination angle of the sand shooting head is changed.

[0011] As a further scheme of the present application, the sliding assembly comprises a first electric telescopic rod mounted on the mounting platform, a horizontal guide is mounted on the action end of the first electric telescopic rod, a sliding piece capable of moving along the length direction of the horizontal guide is arranged in the horizontal guide, and the sliding piece is rotationally connected with the sand shooting head.

[0012] One end of the second electric telescopic rod is rotationally connected with the sand shooting head, and the other end is rotationally connected with the horizontal guide.

[0013] The sliding assembly further comprises a toothed structure arranged between the sand shooting head and the horizontal guide, and the toothed structure can drive the sliding piece to slide in the horizontal guide when the inclination angle of the sand shooting head is changed.

[0014] As a further scheme of the present application, the toothed structure comprises a gear coaxially and fixedly connected with the rotating shaft of the sand shooting head and a rack plate mounted on the horizontal guide, the gear is engaged with the rack plate, and the rack plate is located below the rotating shaft of the sand shooting head.

[0015] As a further scheme of the present application, further comprising:

[0016] Two groups of rotating shafts are fixedly connected with the two groups of forming molds, the rotating shafts are hollow structures, and the hollow structures are in communication with the micro holes arranged on the forming surfaces of the forming molds.

[0017] A switching assembly is in communication with the gas tank arranged on the frame, and the switching assembly can alternately deliver compressed gas to the two groups of hollow structures.

[0018] As a further scheme of the present application, the switching assembly comprises a connecting sleeve rotationally sleeved on the rotating shaft, an annular chamber is formed between the connecting sleeve and the outer wall of the rotating shaft, a plurality of strip-shaped through grooves are circumferentially and equidistantly arranged below the area covered by the connecting sleeve on the circumferential outer wall of the rotating shaft, and the compressed gas entering the annular chamber can be sprayed out from the micro holes through the strip-shaped through grooves and the rotating shaft.

[0019] The switching assembly further comprises a switching structure mounted on the frame and connected with the two sets of connecting sleeves, and the switching structure is communicated with the gas tank.

[0020] As a further scheme of the present application, the switching assembly comprises an adjusting sleeve mounted on the frame and a conducting member sealingly slidingly arranged in the adjusting sleeve, the adjusting sleeve is connected with the two sets of connecting sleeves through two sets of conduits respectively, and the conducting member is connected with a micro motor arranged on the adjusting sleeve.

[0021] The conducting member is provided with an air inlet hole coaxial with the rotation center of the conducting member, the air inlet hole is communicated with the gas tank, and a flow channel is further arranged in the conducting member, the flow channel can guide the compressed gas to enter the two sets of conduits respectively.

[0022] As a further scheme of the present application, a connecting shaft is rotatably mounted at the bottom of the frame, and the two ends of the connecting shaft are connected with the two sets of rotating shafts through two sets of toothed belts respectively.

[0023] One of the two sets of rotating shafts is slidingly connected with a driving device arranged on the frame.

[0024] An intelligent integrated casting device, comprising the sand core molding device for producing ingot molds.

[0025] A method for casting using the intelligent integrated casting device, comprising the following steps:

[0026] Step one, heating the two sets of forming molds, and then controlling the two sets of forming molds to move close to each other until they are tightly attached;

[0027] Step two, controlling the second electric telescopic rod to act according to the horizontal inclination of the upper surface of the forming mold, so that the lower end surface of the sand shooting head is parallel to the upper surface of the forming mold, and at the same time, the sand shooting head is caused to produce lateral displacement under the action of the sliding assembly, so that when the sand shooting head moves towards the forming mold, it can just attach to the upper surface of the forming mold;

[0028] Step three, after the predetermined sand shooting action is completed, the two sets of forming molds are rotated by 180°, and step two is repeated;

[0029] Step four, after the casting sand shooting is completed, the forming mold is subjected to pressure maintaining;

[0030] Step five, after the pressure maintaining is completed, the switching assembly acts to deliver compressed gas towards one of the two sets of forming molds, so that the formed sand core can be separated from the forming mold, and when the sand core is taken out, the switching assembly acts again to deliver compressed gas towards the other set of forming molds, so that the formed sand core can be separated from the forming mold.

[0031] Compared with the prior art, the application has the beneficial effects that:

[0032] By setting the second electric telescopic rod and the sliding assembly, the horizontal angle of the sand shooting head can be adjusted, and the horizontal position of the sand shooting head can also be adjusted, so that the angle difference and the misalignment difference between the sand shooting head and the forming mold are eliminated, and when the sand shooting head abuts against the forming mold, the two can be tightly attached to ensure the accuracy of the sprayed casting sand amount, avoid the phenomenon that the formed sand core has bubbles and partial area defects, and ensure the sealing property during pressure keeping to avoid the problem that the formed sand core is not compact enough due to the gap between the two. In addition, the tight attachment of the sand shooting head and the forming mold helps to resist the deformation of the sand core in the solidification process due to its own gravity or other external factors, and ensures the dimensional accuracy and shape integrity of the sand core.

[0033] By setting the rotating shaft and the switching assembly, before the two groups of forming molds are separated, the compressed gas can be discharged through the micro holes on one group of forming molds and act on the sand core to make the sand core have a gap or looseness with the group of forming molds, so that the sand core can move with the other group of forming molds, and the stability of the sand core during separation is improved. When the conveying direction of the compressed gas is switched, the sand core can be more conveniently stripped from the other group of forming molds. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 Structure schematic view of an embodiment of the sand core molding device for producing a steel ingot mold.

[0035] Figure 2 Structure schematic view of another angle in an embodiment of the sand core molding device for producing a steel ingot mold.

[0036] Figure 3 Structure schematic view of the sliding assembly and the rack in an embodiment of the sand core molding device for producing a steel ingot mold.

[0037] Figure 4 Structure schematic view of the sliding assembly in an embodiment of the sand core molding device for producing a steel ingot mold.

[0038] Figure 5 Exploded view of the structure of the sliding assembly in an embodiment of the sand core molding device for producing a steel ingot mold.

[0039] Figure 6 Connection relationship schematic view of the two groups of rotating shafts in an embodiment of the sand core molding device for producing a steel ingot mold.

[0040] Figure 7 Structure schematic view of the switching assembly in an embodiment of the sand core molding device for producing a steel ingot mold.

[0041] Figure 8 Structure diagram of the relative position between the guide member and the adjusting sleeve in a sand core molding device for producing a steel ingot mold.

[0042] Figure 9 Structure diagram of the relative position between the guide member and the adjusting sleeve in a sand core molding device for producing a steel ingot mold.

[0043] In the figure: 1, frame; 2, mounting platform; 3, first electric telescopic rod; 4, horizontal guide; 5, sliding member; 6, sand shooting head; 7, gear; 8, rack plate; 9, second electric telescopic rod; 10, angle detection device; 11, driving device; 12, rotating shaft; 13, molding mold; 14, strip-shaped through groove; 15, connecting shaft; 16, toothed belt; 17, connecting sleeve; 18, adjusting sleeve; 19, micro motor; 20, guide member; 2001, flow-through passage; 21, gas tank. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0045] In addition, the elements in the present application are referred to as "fixed to" or "provided on" another element, which can be directly on another element or can have a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or can have a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0046] Please refer to Figures 1-9 In the embodiments of the present application, a sand core molding device for producing a steel ingot mold comprises a frame 1, a sand shooting head 6, a mounting platform 2 and a sliding assembly.

[0047] The frame 1 is provided with a molding mold 13 and a sand shooting head 6;

[0048] The mounting platform 2 is detachably mounted on the frame 1, and the mounting platform 2 is rotatably connected with the sand shooting head 6, and the mounting platform 2 and the sand shooting head 6 are connected through a second electric telescopic rod 9. The second electric telescopic rod 9 can drive the sand shooting head 6 to change the inclination angle. Specifically, the sand shooting head 6 is provided with an angle detection device 10 on the side, which can detect the inclination angle of the upper surface of the molding mold 13.

[0049] In use, when it is necessary to inject casting sand between the two closely fitted forming molds 13, the angle detection device 10 can first obtain the inclination angle of the upper surface of the forming mold 13, and simultaneously control the second electric telescopic rod 9 to act, at this time, the action end of the second electric telescopic rod 9 either extends outward or retracts inward, so that the horizontal inclination angle of the sand injection head 6 can be changed, and the horizontal inclination angle of the sand injection head 6 is ensured to be consistent with the horizontal inclination angle of the upper surface of the forming mold 13, so that when the sand injection head 6 moves towards the forming mold 13 and abuts, the sand injection head 6 can be completely fitted with the forming mold 13 without gaps, ensuring that the casting sand can enter the forming cavity formed by the two forming molds 13 during the sand injection process, avoiding the casting sand from being sprayed to the outside through the gap between the two, resulting in that the actual casting sand amount in the forming cavity is less than the predetermined casting sand amount, and causing the sand core to have bubbles, partial area defects and other phenomena after forming.

[0050] Further, after the sand injection is completed, the sand injection head 6 needs to plug the upper end openings of the two forming molds 13 to perform the pressure maintaining action. Based on the above setting, since the sand injection head 6 can be completely fitted with the upper surface of the forming mold 13, the sealing property of the two in the abutting state is ensured, which can first avoid the pressure relief due to the gap between the two, causing the formed sand core to be not compact enough, and secondly, the close fitting of the sand injection head 6 with the forming mold 13 helps to resist the deformation of the sand core that may be caused by its own gravity or other external factors during the solidification process, ensuring the dimensional accuracy and shape integrity of the sand core.

[0051] The sliding assembly connects the mounting platform 2 and the sand injection head 6, and can cause the sand injection head 6 to move laterally when the inclination angle of the sand injection head 6 is changed. The sliding assembly includes a first electric telescopic rod 3 mounted on the mounting platform 2, a horizontal guide 4 mounted on the action end of the first electric telescopic rod 3, a sliding piece 5 movably arranged in the horizontal guide 4, and the sand injection head 6 rotationally connected with the sliding piece 5.

[0052] One end of the second electric telescopic rod 9 is rotationally connected with the sand injection head 6, and the other end is rotationally connected with the horizontal guide 4.

[0053] The sliding assembly further includes a meshing structure arranged between the sand injection head 6 and the horizontal guide 4, which can drive the sliding piece 5 to slide in the horizontal guide 4 when the inclination angle of the sand injection head 6 is changed. The meshing structure includes a gear 7 coaxially fixedly connected with the rotation shaft of the sand injection head 6 and a rack plate 8 mounted on the horizontal guide 4. The gear 7 is engaged with the rack plate 8, and the rack plate 8 is located below the rotation shaft of the sand injection head 6.

[0054] When the upper surface of the forming mold 13 is not horizontal, there will also be a displacement difference between the upper surface and the rotation center thereof. At this time, although the angle of the sand shooting head 6 can be adjusted to ensure that the sand shooting head 6 is in close contact with the upper surface of the forming mold 13, a displacement difference along the length direction of the upper surface of the forming mold 13 between the sand shooting head 6 and the forming mold 13 will be caused. In the present embodiment, when the horizontal inclination angle of the sand shooting head 6 changes, the rotation shaft of the sand shooting head 6 will also rotate, so that the gear 7 rotates, and the gear 7 and the rack plate 8 are in meshing state. When the horizontal inclination angle of the sand shooting head 6 changes, the sliding member 5 can move relative to the horizontal guide 4, so that the horizontal position of the sand shooting head 6 changes. Therefore, when the sand shooting head 6 is in close contact with the upper surface of the forming mold 13, the displacement difference can be eliminated, so that the sand shooting head 6 can be in close contact with the upper surface of the forming mold 13, and the sealing between the two can be further improved.

[0055] For example, Figure 1 From the left to the right perspective, when the forming mold 13 tilts to the right due to motor driving error, a displacement difference to the right will be caused. At this time, the second electric telescopic rod 9 controls the right side of the sand shooting head 6 to be deflected downward, the gear 7 rotates clockwise, and under the cooperation of the rack plate 8, the sliding member 5 moves to the right along the length direction of the horizontal guide 4, so as to eliminate the displacement difference caused by the forming mold 13 tilting to the right.

[0056] It is to be supplemented that the deflection and transverse displacement of the sand shooting head 6 can not only eliminate the displacement difference caused by the forming mold 13 rotating 180°, but also eliminate the active displacement difference of the forming mold 13. Specifically, when the forming cavity structure formed between the two groups of forming molds 13 is relatively complex, if only the upper surface of the forming mold 13 is horizontal, the casting sand may not be well filled into the forming cavity. At this time, by actively controlling the upper surface of the forming mold 13 to tilt at a certain angle, the forming cavity can be better filled. Under this use condition, the above-mentioned control of the sand shooting head 6 can also well adapt to the use environment.

[0057] Please refer to Figure 2 、 Figures 7-9 , the sand core molding device for producing ingot mold further comprises:

[0058] Two groups of rotating shafts 12 fixedly connected with the two groups of forming molds 13, the rotating shaft 12 is a hollow structure, and the hollow structure is in communication with the micro-pores arranged on the forming surface of the forming mold 13;

[0059] A switching assembly in communication with the gas tank 21 arranged on the frame 1, the switching assembly being capable of alternatingly delivering compressed gas towards the two groups of hollow structures, the switching assembly comprising a connecting sleeve 17 rotatably sleeved on the rotating shaft 12, an annular chamber being formed between the connecting sleeve 17 and the outer wall of the rotating shaft 12, a plurality of strip-shaped through grooves 14 being circumferentially and equidistantly arranged on the circumferential outer wall of the rotating shaft 12 in the region covered by the connecting sleeve 17, the compressed gas entering the annular chamber being capable of being sprayed out of the micro holes via the strip-shaped through grooves 14 and the rotating shaft 12.

[0060] In the present embodiment, the compressed gas can enter the annular chamber and enter the interior of the rotating shaft 12 via the strip-shaped through grooves 14, and the connecting sleeve 17 is rotatably mounted on the rotating shaft 12, specifically, the two are sealingly and rotatably connected, so that when the rotating shaft 12 rotates to switch the orientation and angle of the forming die 13, as long as the compressed air can enter the annular chamber, the compressed gas can be ensured to enter the interior of the rotating shaft 12 and then be sprayed out of the micro holes, ensuring the stability of the micro hole spray of the compressed gas in various use cases.

[0061] The switching assembly further comprises a conversion structure mounted on the frame 1 and connected with the two groups of connecting sleeves 17, the conversion structure being in communication with the gas tank 21, the switching assembly comprising an adjusting sleeve 18 mounted on the frame 1 and a conducting member 20 sealingly and slidingly arranged in the adjusting sleeve 18, the adjusting sleeve 18 being connected with the two groups of connecting sleeves 17 through two groups of conduits, and the conducting member 20 being connected with a micro motor 19 arranged on the adjusting sleeve 18.

[0062] The conducting member 20 is provided with an air inlet hole coaxial with the rotation center thereof, the air inlet hole being in communication with the gas tank 21, and the conducting member 20 is further provided with a flow-through channel 2001, the flow-through channel 2001 being capable of guiding the compressed gas to enter the two groups of conduits.

[0063] For the convenience of understanding, the two conduits connected with the adjusting sleeve 18 are respectively named as a first conduit and a second conduit, in the initial state, the flow-through channel 2001 on the conducting member 20 is misaligned with the first conduit and the second conduit, so that in this state, the compressed gas cannot be sprayed out of the first conduit and the second conduit, and in this state, the sand shooting and pressure maintaining forming actions can be performed.

[0064] When the sand core is formed, the two sets of forming molds 13 need to be separated from each other so that the sand core can be taken out, and before the two sets of forming molds 13 move away from each other, the micro motor 19 will drive the guide member 20 to rotate, so that the flow passage 2001 can coincide with the first conduit (the second conduit), at this time, the compressed gas can be discharged through the micro holes on one of the two sets of forming molds 13, and act on the sand core, so that a gap or looseness can be generated between the sand core and the forming mold 13, and then during the separation of the two sets of forming molds 13, the sand core can move with the other set of forming molds 13, thereby avoiding the risk that the sand core falls during the separation of the two sets of forming molds 13 due to the adhesion between different regions of the sand core and the two sets of forming molds 13.

[0065] During the continuous movement of the two sets of forming molds 13 away from each other, the micro holes on one of the two sets of forming molds 13 will continue to spray compressed gas, so that cooling of one side of the sand core can be achieved, and after the forming molds 13 stop moving, the guide member 20 will continue to rotate until the flow passage 2001 coincides with the second conduit (the first conduit), at this time, under the action of the compressed gas, the sand core can be better separated from the forming mold 13, avoiding the difficulty of taking out the sand core due to the adhesion of the sand core to the forming mold 13.

[0066] Please refer to Figure 6 , the forming mold 13 is provided with two sets, the two sets of forming molds 13 can move relative to each other, and the two sets of forming molds 13 can rotate relative to the rack 1;

[0067] The connecting shaft 15 is rotatably installed at the bottom of the rack 1, and the two ends of the connecting shaft 15 are connected to the two sets of rotating shafts 12 through the two sets of toothed belts 16 respectively, wherein the two sets of toothed belts 16 described above can also adopt a chain structure;

[0068] One of the rotating shafts 12 is slidably connected with the driving device 11 arranged on the rack 1;

[0069] The sand shooting head 6 is arranged on the rack 1, and the sand shooting head 6 can shoot casting sand towards the two sets of forming molds 13;

[0070] In use, the hydraulic cylinder arranged on the rack 1 can drive one of the two sets of forming molds 13 to move towards the other set of forming molds 13, so as to realize close adhesion of the two sets of forming molds 13, and a limiting protrusion is arranged on the output shaft of the driving device 11, which is in sliding fit with the limiting groove arranged on one of the rotating shafts 12, so as to realize axial locking and ensure that the rotating shaft 12 can extend and rotate relative to the driving device 11.

[0071] And through the setting of the connecting shaft 15 and the two groups of toothed belts 16, when one group of the rotating shafts 12 rotates, the other group of the rotating shafts 12 can rotate synchronously, and then the two groups of the forming molds 13 can rotate synchronously, so as to avoid the axial misalignment between the two groups of the forming molds 13, ensure the tightness when the two groups of the forming molds 13 fit at any angle, and ensure the integrity of the forming cavity.

[0072] As an embodiment of the present application, an intelligent integrated casting device is also provided, which comprises the sand core molding device for producing the ingot mold.

[0073] As another embodiment of the present application, a method for casting by using the intelligent integrated casting device is also provided, which comprises the following steps.

[0074] Step one, heating the two groups of the forming molds 13, and then controlling the two groups of the forming molds 13 to move close to each other until tightly fit;

[0075] Step two, controlling the second electric telescopic rod 9 to act according to the horizontal inclination of the upper surface of the forming mold 13, so that the lower end surface of the sand shooting head 6 is parallel to the upper surface of the forming mold 13, and at the same time, the sand shooting head 6 generates transverse displacement under the action of the sliding assembly, so that when the sand shooting head 6 moves towards the forming mold 13, it can just fit the upper surface of the forming mold 13;

[0076] Step three, after the predetermined sand shooting action is completed, the two groups of the forming molds 13 are rotated by 180°, and the above step two is repeated;

[0077] Step four, after the casting sand shooting is completed, the forming mold 13 is pressure maintained;

[0078] Step five, after the pressure maintaining is completed, the switching assembly acts to deliver compressed gas towards one of the forming molds 13, so that the formed sand core can be separated from the forming mold 13, and when the sand core is taken out, the switching assembly acts again to deliver compressed gas towards the other forming mold 13, so that the formed sand core can be separated from the forming mold 13.

[0079] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0080] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A sand core molding device for producing steel ingot molds, comprising: A frame, on which two sets of forming molds are mounted, and the two sets of forming molds are rotatable relative to the frame; A sand-shooting head is mounted on the frame. The sand-shooting head can inject casting sand between the two sets of forming molds. An angle detection device is installed on the side of the sand-shooting head. The angle detection device can detect the tilt angle of the upper surface of the forming mold. Its characteristic is that it further includes: The mounting platform is detachably mounted on the frame. The mounting platform is rotatably connected to the sand-shooting head, and the mounting platform and the sand-shooting head are connected by a second electric telescopic rod. The movement of the second electric telescopic rod can drive the sand-shooting head to change its tilt angle. A sliding assembly connects the mounting platform and the sand-shooting head. The sliding assembly enables the sand-shooting head to move laterally when the tilt angle of the sand-shooting head changes. The sliding assembly includes a first electric telescopic rod mounted on the mounting platform. A horizontal guide is mounted on the actuating end of the first electric telescopic rod. A sliding member capable of moving along its length is provided inside the horizontal guide. The sliding member is rotatably connected to the sand-shooting head. One end of the second electric telescopic rod is rotatably connected to the sand-shooting head, and the other end is rotatably connected to the horizontal guide. The sliding assembly also includes a meshing structure disposed between the sand-shooting head and the horizontal guide, wherein when the inclination angle of the sand-shooting head changes, the meshing structure can drive the sliding member to slide within the horizontal guide. The meshing structure includes a gear fixedly connected coaxially to the shaft of the sand-shooting head and a rack plate mounted on the horizontal guide. The gear meshes with the rack plate, and the rack plate is located below the shaft of the sand-shooting head.

2. The sand core molding device for producing steel ingot molds according to claim 1, characterized in that, Also includes: Two sets of rotating shafts are fixedly connected to the two sets of forming molds. The interior of the rotating shafts is a hollow structure, which communicates with the micropores provided on the forming surface of the forming mold. A switching assembly, connected to a gas tank mounted on the frame, is capable of alternately delivering compressed gas toward the two sets of hollow structures.

3. The sand core molding device for producing steel ingot molds according to claim 2, characterized in that, The switching assembly includes a connecting sleeve rotatably sleeved on the rotating shaft. An annular chamber is formed between the connecting sleeve and the outer wall of the rotating shaft. The outer circumferential wall of the rotating shaft is provided with multiple sets of strip-shaped through slots at equal intervals around the area covered by the connecting sleeve. Compressed gas entering the annular chamber can be ejected through the strip-shaped through slots, the rotating shaft, and the micro-holes. The switching assembly also includes a conversion structure mounted on the frame and connected to the two sets of connecting sleeves, the conversion structure being in communication with the gas tank.

4. The sand core molding device for producing steel ingot molds according to claim 3, characterized in that, The switching assembly includes an adjusting sleeve mounted on the frame and a conductive element that is sealed and slidably disposed within the adjusting sleeve. The adjusting sleeve is connected to two sets of connecting sleeves via two sets of conduits. The conductive element is connected to a micro motor disposed on the adjusting sleeve. The guide component is provided with an air inlet hole coaxial with its rotation center. The air inlet hole is connected to the gas tank. The guide component is also provided with a flow channel, which can guide compressed gas into the two sets of guide tubes respectively.

5. The sand core molding device for producing steel ingot molds according to claim 2, characterized in that, A connecting shaft is rotatably mounted at the bottom of the frame, and the two ends of the connecting shaft are respectively connected to two sets of rotating shafts by two sets of toothed belts; One set of the rotating shafts is slidably connected to a drive unit mounted on the frame.

6. An intelligent integrated casting equipment, characterized in that, Includes the sand core molding apparatus for producing steel ingot molds as described in any one of claims 1 to 5.

7. A method for casting using the intelligent integrated casting equipment as described in claim 6, characterized in that, Includes the following steps: Step 1: Heat the two sets of molding molds, and then control the two sets of molding molds to move closer to each other until they fit tightly together; Step 2: Control the movement of the second electric telescopic rod according to the horizontal tilt angle of the upper surface of the molding die, so that the lower end face of the sand injection head is parallel to the upper surface of the molding die. At the same time, under the action of the sliding component, the sand injection head will generate a lateral displacement so that when the sand injection head moves toward the molding die, it can just fit against the upper surface of the molding die. Step 3: After completing the predetermined sand-shooting action, the two sets of molding molds are rotated 180° and Step 2 above is repeated. Step 4: After the casting sand is injected, the molding die is held under pressure. Step 5: After the pressure holding is completed, the switching component operates to deliver compressed gas into one of the molding dies, so that the formed sand core can be separated from the molding die. When the sand core is removed, the switching component operates again to deliver compressed gas into another molding die, so that the formed sand core can be separated from the molding die.

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