Automatic sand filling device
Through the automatic sand filling device, the problem of high efficiency and low manual filling cost of the withdrawal groove in the production of connected cylinder head castings is solved, automatic sand filling is realized, cost saving and sand filling efficiency is improved, and casting filling integrity is ensured.
Patent Information
- Application Number
- CN202323596970.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2033-12-27
AI Technical Summary
During the production process of the combined cylinder head castings, the sand core is heavier, the concession groove needs to be manually filled with sand blocks, resulting in high production costs and low working efficiency.
An automatic sand filling device is designed, including a sand filling mechanism, a sand filling mechanism, an adjustment mechanism and a detection mechanism. The sand material is automatically transported to the withdrawal groove of the workpiece to be filled, and the adjustment mechanism is in the directions of X, Y, and Z. Adjust the position of the sand injection component to ensure accurate filling of sand material, the detection mechanism monitors the sand material residual amount and filling status, and the control device automatically fills.
There is no need to make sand blocks and manual filling, which saves sand making and labor costs, improves sand filling efficiency, ensures the integrity of casting filling and production reliability.
Smart Images
Figure CN222359229U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of casting, in particular to an automatic sand filling device. Background Art
[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.
[0003] In the production process of the combined cylinder head casting, since the sand core is heavy, a special lifting fixture is required to lower the sand core, that is, to assemble the assembled sand core to the lower sand mold, so a retreat groove needs to be reserved on the sand mold for the fixture. During pouring, when sparking occurs, the retreat groove easily provides space for the escaping molten metal, making the sparking problem more serious. A large amount of sparking will cause the casting to be scrapped due to insufficient filling, so filling the retreat groove is very important.
[0004] In the prior art, when filling the retreat groove, a cold core making process is usually used to make sand blocks, and then the retreat groove is filled manually with the sand blocks. The above filling method results in high production costs and low work efficiency. Utility Model Content
[0005] The purpose of the utility model is to at least solve the problem of high production cost and low working efficiency caused by manually filling the retreat groove with sand blocks. This purpose is achieved through the following technical solutions:
[0006] The first aspect of the utility model provides an automatic sand filling device, comprising:
[0007] Sand adding mechanism;
[0008] The sand injection mechanism comprises a sand injection assembly, wherein the sand injection assembly is arranged below the sand adding mechanism, and the sand injection assembly is used to receive the sand material transmitted by the sand adding mechanism and fill the sand material into the workpiece to be filled with sand;
[0009] The adjustment mechanism includes a first adjustment component and a second adjustment component respectively connected to the sand injection component, the first adjustment component is used to adjust the position of the sand injection component along the X direction, and the second adjustment component is used to adjust the position of the sand injection component along the Y direction, and the X direction intersects with the Y direction.
[0010] The automatic sand filling device of the utility model is provided with an adjusting mechanism connected to the sand injection mechanism, and the adjusting mechanism can make the sand injection mechanism move along the X-axis and the Y-axis respectively to adjust the position of the sand injection mechanism. When filling sand, the sand adding component transports sand into the sand injection component, and the adjusting mechanism adjusts the position of the sand injection component according to the position of the retreat groove on the workpiece to be filled with sand to adapt to the retreat grooves in different positions. Then, the sand is filled into the workpiece to be filled with sand through the sand injection component, and there is no need to make sand blocks and fill them manually, thereby saving sand making costs and labor costs, and at the same time, the sand filling efficiency is improved by utilizing the automated sand filling method.
[0011] In addition, the automatic sand filling device according to the utility model may also have the following additional technical features:
[0012] In some embodiments of the present invention, the first adjustment assembly includes a first guide rail and a first driving member arranged on the first guide rail, the sand injection assembly is connected to the driving end of the first driving member, and the sand injection assembly is slidably arranged on the first guide rail along the X direction.
[0013] In some embodiments of the present utility model, the first driving member includes a first cylinder, the first cylinder is arranged at the end of the first guide rail, and the sand injection assembly is connected to the driving end of the first cylinder.
[0014] In some embodiments of the present invention, the second adjustment assembly includes a second guide rail and a second driving member, a driving end of the second driving member is connected to the first guide rail, and the first guide rail is slidably disposed on the second guide rail along the Y direction.
[0015] In some embodiments of the present invention, the second driving member includes a second cylinder, the second cylinder is disposed at the end of the second guide rail, and the driving end of the second cylinder is connected to the first guide rail.
[0016] In some embodiments of the present invention, the adjustment mechanism also includes a third adjustment component, the third adjustment component includes a third cylinder, the driving end of the third cylinder is connected to the sand injection component, and the third cylinder is used to adjust the sand injection component to move along the Z-axis direction.
[0017] In some embodiments of the present invention, the automatic sand filling device also includes a detection mechanism, the sand adding mechanism includes a sand hopper, the detection mechanism includes a first detection member, the first detection member is arranged in the sand hopper, and the first detection member is used to detect the material level of sand in the sand hopper.
[0018] In some embodiments of the present invention, the detection mechanism further includes a second detection member, which is disposed in the sand injection assembly and is used to detect the material level of sand in the sand injection assembly.
[0019] In some embodiments of the present utility model, the first detection member includes a material level sensor, and the material level sensor is arranged on the inner wall of the sand hopper;
[0020] And / or, the sand injection assembly includes a plurality of sand injection cups, and the second detection member includes a pressure sensor, and the pressure sensor is arranged at the bottom of the sand injection cup.
[0021] In some embodiments of the present invention, the automatic sand filling device further includes a control mechanism, and the control mechanism is electrically connected to the adjustment mechanism and the detection mechanism. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:
[0023] Figure 1 The structure diagram of the automatic sand filling device according to the embodiment of the utility model is schematically shown. Figure 1 ;
[0024] Figure 2 The structure of the automatic sand filling device according to the embodiment of the utility model is schematically shown. Figure 2 ;
[0025] Figure 3 for Figure 2 The enlarged view of point A in the middle;
[0026] Figure 4 The sand filling flow chart of the automatic sand filling device according to the embodiment of the utility model is schematically shown.
[0027] The reference numerals are as follows:
[0028] 1. Frame;
[0029] 20. Sand hopper; 21. Sand adding pipeline; 22. Sand adding valve;
[0030] 30. Sand injection cup; 31. Sand injection pipeline; 32. Sand injection valve;
[0031] 40. first guide rail; 401. first sliding groove; 41. first cylinder; 42. first connecting sleeve;
[0032] 50, second guide rail; 501, second sliding groove; 51, second cylinder; 52, second connecting sleeve;
[0033] 60. third cylinder; 61. first connecting plate; 62. second connecting plate;
[0034] 7. The first test piece;
[0035] 8. Sand box. DETAILED DESCRIPTION
[0036] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0037] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.
[0038] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.
[0039] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both above and below orientations.
[0040] In the production process of the combined cylinder head casting of the related technology, since the sand core is heavy, a special lifting fixture is required to lower the sand core, that is, to assemble the assembled sand core to the lower sand mold, so it is necessary to leave a retreat groove on the sand mold for the fixture. Since the combined cylinder head is relatively long, usually 100 cm or more, the sand core is also in the shape of a long strip. Under the action of the high-temperature molten metal during the drying or pouring of the sand core, it is inevitable that there will be a certain degree of deformation, resulting in a larger fitting clearance and causing the problem of sparking. When sparking occurs, the retreat groove easily provides space for the escaping molten metal, making the sparking problem more serious. A large amount of sparking will cause the casting to be underfilled and scrapped, so filling the retreat groove is very important.
[0041] In view of this, the present embodiment provides an automatic sand filling device which does not require the production of sand blocks and manual filling, thereby saving sand making costs and labor costs, while improving sand filling efficiency through automated sand filling methods, so as to solve the above technical problems.
[0042] like Figures 1 to 3 As shown, according to the implementation mode of the utility model, an automatic sand filling device is proposed, which includes a frame 1, a sand adding mechanism, a sand injection mechanism, an adjustment mechanism and a control mechanism. The sand adding mechanism is arranged on the top of the frame 1, and the sand injection mechanism includes a sand injection assembly, which is arranged below the sand adding mechanism. The sand injection assembly is used to receive the sand material transmitted by the sand adding mechanism and fill the sand material into the workpiece to be filled with sand. The adjustment mechanism includes a first adjustment assembly and a second adjustment assembly respectively connected to the sand injection assembly, the first adjustment assembly is used to adjust the position of the sand injection assembly along the X direction, and the second adjustment assembly is used to adjust the position of the sand injection assembly along the Y direction, and the X direction intersects with the Y direction; the control mechanism includes a controller, and the controller is electrically connected to the adjustment mechanism.
[0043] The automatic sand filling device of the utility model is provided with an adjusting mechanism connected to the sand injection mechanism, and the adjusting mechanism can make the sand injection mechanism move along the X-axis and the Y-axis respectively to adjust the position of the sand injection mechanism. When filling sand, the sand adding component transports sand into the sand injection component, and the adjusting mechanism adjusts the position of the sand injection component according to the position of the retreat groove on the workpiece to be filled with sand to adapt to the retreat grooves in different positions. Then, the sand is filled into the workpiece to be filled with sand through the sand injection component, and there is no need to make sand blocks and fill them manually, thereby saving sand making costs and labor costs. At the same time, the automated sand filling method improves the sand filling efficiency.
[0044] In this embodiment, the sand adding mechanism includes a sand hopper 20 and a sand adding unit. The number of sand adding units is four. Each sand adding unit includes a sand adding pipeline 21 and a sand adding valve 22. The sand hopper 20 is arranged on the top of the frame 1. The four sand adding pipelines 21 are respectively arranged at the four corners of the bottom of the sand hopper 20 and are connected to the sand hopper 20. A sand adding valve 22 is provided on each sand adding pipeline 21. The signal input end of the sand adding valve 22 is electrically connected to the signal output end of the controller. The controller is used to control the connection or disconnection of the sand adding valve 22 to improve the degree of automation of the sand filling device.
[0045] In some embodiments of the present invention, the first adjustment assembly includes a first guide rail 40 and a first driving member disposed on the first guide rail 40, the sand injection assembly is connected to the driving end of the first driving member, and the sand injection assembly is slidably disposed on the first guide rail 40 along the X direction. Specifically, the X direction is Figure 2 As shown by the middle arrow, there are two first guide rails 40, which are parallel and spaced apart along the X-axis direction. There are four sand injection units, which are respectively arranged at the ends of the two first guide rails 40 in a one-to-one correspondence. The four sand injection units are arranged in a one-to-one correspondence with the four sand adding pipelines 21. The sand in the sand bucket 20 is transported to the sand injection unit through the sand adding pipeline 21. The first adjusting component also includes four first connecting components. The sand injection unit is connected to the first guide rail 40 through the first connecting component, and the sand injection unit is connected to the driving end of the first driving member. The first driving member can drive the sand injection unit to slide along the first guide rail 40, thereby adjusting the position of the sand injection unit in the X direction, which can be applied to the filling of different workpieces to be filled with sand, and has strong applicability.
[0046] In other embodiments, the number of sand adding units and sand injection units can be set according to the number of retreat grooves on the product to be filled with sand.
[0047] In some embodiments of the utility model, the first driving member includes a first cylinder 41, which is disposed at the end of the first guide rail 40, and the sand injection assembly is connected to the driving end of the first cylinder 41. Specifically, each sand injection unit is connected to the first guide rail 40 through a first connecting assembly, wherein the sand injection unit includes a sand injection cup 30, a sand injection pipeline 31 and a sand injection valve 32 disposed on the sand injection pipeline 31, and the first connecting assembly includes a first connecting sleeve 42, which is sleeved on the outside of the first guide rail 40 and connected to the sand injection valve 32, and a first sliding groove 401 is opened on the first guide rail 40 along the length direction of the first guide rail 40, and the first connecting sleeve 42 is connected to the lever of the first cylinder 41 by bolts, so that the first cylinder 41 drives the first connecting sleeve 42 to slide along the first sliding groove 401, and the moving stroke of the sand injection cup 30 is related to the length of the first sliding groove 401, and the length of the first sliding groove 401 can be set according to actual needs.
[0048] In some embodiments of the present invention, the second adjustment assembly includes a second guide rail 50 and a second driving member, the driving end of the second driving member is connected to the first guide rail 40, and the first guide rail 40 is slidably disposed on the second guide rail 50 along the Y direction. Specifically, the Y direction is Figure 2 As shown by the middle arrow, there are two second guide rails 50, which are parallel and spaced apart in the Y-axis direction and perpendicular to the two first guide rails 40. The second adjustment assembly also includes four second connecting assemblies. The first guide rail 40 is connected to the second guide rail 50 through the second connecting assemblies, and the first guide rail 40 is connected to the driving end of the second driving member. The second driving member can drive the first guide rail 40 to slide along the second guide rail 50, thereby adjusting the position of the sand injection unit connected to the first guide rail 40 in the Y direction. It can be used for filling different workpieces to be filled with sand, and has strong applicability.
[0049] In some embodiments of the utility model, the second driving member includes a second cylinder 51, which is disposed at the end of the second guide rail 50, and the driving end of the second cylinder 51 is connected to the first guide rail 40. Specifically, the first guide rail 40 is connected to the second guide rail 50 through a second connecting assembly, and the second connecting assembly includes a second connecting sleeve 52, which is sleeved on the outside of the second guide rail 50 and connected to the first guide rail 40, and a second sliding groove 501 is opened on the second guide rail 50 along the length direction of the second guide rail 50. The second connecting sleeve 52 is connected to the lever of the second cylinder 51 by bolts, so that the second cylinder 51 drives the second connecting sleeve 52 to slide along the second sliding groove 501. The moving stroke of the first guide rail 40 is related to the length of the second sliding groove 501, and the length of the second sliding groove 501 can be set according to actual needs.
[0050] In some embodiments of the utility model, the adjustment mechanism further includes a third adjustment component, the third adjustment component includes a third cylinder 60, the driving end of the third cylinder 60 is connected to the sand injection mechanism, and the third cylinder 60 is used to adjust the sand injection component to move along the Z axis. Specifically, the third adjustment component also includes a first connecting plate 61 and a second connecting plate 62, the fixed end of the third cylinder 60 is arranged on the first connecting plate 61, the lever of the third cylinder 60 is fixed to the second connecting plate 62, the second connecting plate 62 is arranged between the two second guide rails 50 and connected to the two second guide rails 50, the third cylinder 60 drives the second connecting plate 62 to move along the Z axis (i.e., the vertical direction), thereby driving the second guide rail 50 connected to the second connecting plate 62 to move, and then driving the sand injection unit to move along the Z axis as a whole, so as to adjust the position of the sand injection unit in the Z direction, facilitate the adjustment of the distance between the sand injection cup 30 and the sand adding pipeline 21, avoid the sand material from floating during the sand adding process, and at the same time, the distance between the sand injection pipeline 31 and the workpiece to be filled with sand can be adjusted to ensure the sand filling effect.
[0051] The automatic sand filling device of this embodiment ensures that the coordinates of the sand filling unit correspond to the coordinates of the retreat groove by adjusting the sand filling unit in the X, Y and Z directions, thereby ensuring the accuracy of the sand filling position and improving the sand filling effect and efficiency.
[0052] In some embodiments of the utility model, the automatic sand filling device further includes a detection mechanism, the sand adding mechanism includes a sand bucket 20, the detection mechanism includes a first detection member 7, the first detection member 7 is arranged in the sand bucket 20, and the first detection member 7 is used to detect the material level of the sand material in the sand bucket 20. Specifically, the first detection member 7 includes a material level sensor, the material level sensor is arranged on the inner wall of the sand bucket 20, the signal output end of the material level sensor is connected to the signal input end of the controller, and the material level sensor can detect the material level of the sand material in the sand bucket 20. In this embodiment, it also includes an alarm mechanism, the alarm mechanism includes a first alarm, the signal input end of the first alarm is connected to the signal output end of the controller, and the controller is used to control the first alarm to alarm. When filling sand, when the remaining amount of sand material in the sand bucket 20 is lower than the preset remaining amount (for example, lower than 20%), the first alarm issues a sand adding warning to remind personnel to replenish the sand material in the sand bucket 20 in time to ensure the continuity of production.
[0053] In some embodiments of the utility model, the detection mechanism also includes a second detection member, which is arranged in the sand injection assembly, and the second detection member is used to detect the material level of the sand material in the sand injection assembly. Specifically, the second detection member includes a pressure sensor, which is arranged at the bottom of the sand injection cup 30, and the signal output end of the pressure sensor is connected to the signal input end of the controller, and the pressure sensor is used to detect the pressure of the sand material in the sand injection cup 30. The alarm mechanism also includes a second alarm, and the signal input end of the second alarm is connected to the signal output end of the controller, and the controller is used to control the second alarm to alarm. Since the volume of the retreat groove on the workpiece to be filled is determined before filling, the capacity of the sand material delivered to the sand injection cup 30 corresponds to the volume of the retreat groove of the workpiece to be filled. Then, after the sand injection is completed, if the pressure sensor detects that there is still sand material left in the sand injection cup 30, it means that the filling is incomplete, and the second alarm sounds an alarm to remind personnel to check and refill to prevent the occurrence of missed filling and ensure the reliability of production.
[0054] It should be noted that the first alarm and the second alarm can be sound and light alarms or photoelectric alarms or sound and light alarms, etc., and the number and setting positions of the first alarm and the second alarm are not limited and can be set according to actual needs.
[0055] like Figure 4As shown, it is a sand filling flow chart of the automatic sand filling device of the embodiment of the utility model. When the automatic sand filling device is filling sand, it first confirms the coordinates of the retreat groove on the workpiece to be filled with sand according to the type of the workpiece to be filled with sand, calculates the volume of the retreat groove, and inputs the coordinates and volume into the device in advance. The waste sand generated by production is collected and loaded into the sand hopper 20. The waste sand is the waste sand generated after the casting is boxed. At the same time, there is no need to make sand blocks, which can save the cost of sand materials to a large extent. The material level of the sand material in the sand hopper 20 is detected by the material level sensor, and the detection signal is transmitted to the controller. The controller determines whether the sand material capacity in the sand hopper 20 is sufficient according to the preset capacity. If the amount of sand can meet the sand adding demand, the controller controls the third cylinder 60 to make the sand injection unit rise to the top, and then controls the sand adding valve 22 to open, and the amount of sand with the same volume as the retreat groove is delivered to the sand injection cup 30; if the amount of sand does not meet the sand adding demand, continue to add sand to the sand hopper 20. After the sand is added, the controller controls the first cylinder 41 and the second cylinder 51 to adjust the position of the sand injection cup 30 according to the coordinates of the retreat groove, and waits for the sand box 8 containing the workpiece to be filled with sand to be in place. After the sand box 8 is in place, the controller controls the third cylinder 60 to lower the sand injection unit to a preset height, so that the sand injection pipeline 31 extends into the sand box 8 through the sand injection hole at the top of the sand box 8, and then controls the sand injection valve 32 to open, and the retreat groove on the workpiece to be filled with sand in the sand box 8 is filled with sand through the sand injection pipeline 31. After the sand injection is completed, the pressure of the sand in the sand injection cup 30 is detected by the pressure sensor, and the pressure sensor transmits the pressure signal to the controller. The controller determines whether the sand is filled sufficiently according to the pressure signal. If it is filled sufficiently, the sand injection valve 32 is closed, the sand injection unit is raised, and the above steps are repeated after it is raised to the position to complete a cycle; if it is not filled sufficiently, the sand injection step is repeated, and then the pressure sensor is used to detect until the sand is filled sufficiently. After the sand filling is completed, the sand box 8 continues to run with the roller, and the subsequent box is closed and poured.
[0056] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. An automatic sand filling device, characterized in that: include: Sand adding mechanism; The sand injection mechanism comprises a sand injection assembly, wherein the sand injection assembly is arranged below the sand adding mechanism, and the sand injection assembly is used to receive the sand material transmitted by the sand adding mechanism and fill the sand material into the workpiece to be filled with sand; The adjustment mechanism includes a first adjustment component and a second adjustment component respectively connected to the sand injection component, the first adjustment component is used to adjust the position of the sand injection component along the X direction, and the second adjustment component is used to adjust the position of the sand injection component along the Y direction, and the X direction intersects with the Y direction.
2. The automatic sand filling device according to claim 1, characterized in that: The first adjustment assembly includes a first guide rail and a first driving member disposed on the first guide rail, the sand injection assembly is connected to a driving end of the first driving member, and the sand injection assembly is slidably disposed on the first guide rail along the X direction.
3. The automatic sand filling device according to claim 2, characterized in that: The first driving member comprises a first cylinder, the first cylinder is arranged at the end of the first guide rail, and the sand injection assembly is connected to the driving end of the first cylinder.
4. The automatic sand filling device according to claim 2, characterized in that: The second adjustment assembly includes a second guide rail and a second driving member, a driving end of the second driving member is connected to the first guide rail, and the first guide rail is slidably disposed on the second guide rail along the Y direction.
5. The automatic sand filling device according to claim 4, characterized in that: The second driving member includes a second cylinder, the second cylinder is arranged at the end of the second guide rail, and the driving end of the second cylinder is connected to the first guide rail.
6. The automatic sand filling device according to any one of claims 1 to 5, characterized in that: The adjustment mechanism also includes a third adjustment component, which includes a third cylinder. The driving end of the third cylinder is connected to the sand injection component, and the third cylinder is used to adjust the sand injection component to move along the Z-axis direction.
7. The automatic sand filling device according to any one of claims 1 to 5, characterized in that: The automatic sand filling device also includes a detection mechanism, the sand adding mechanism includes a sand hopper, and the detection mechanism includes a first detection member, which is arranged in the sand hopper and is used to detect the material level of the sand material in the sand hopper.
8. The automatic sand filling device according to claim 7, characterized in that: The detection mechanism also includes a second detection member, which is disposed on the sand injection assembly and is used to detect the material level of the sand material in the sand injection assembly.
9. The automatic sand filling device according to claim 8, characterized in that: The first detection member comprises a material level sensor, and the material level sensor is arranged on the inner wall of the sand hopper; And / or, the sand injection assembly includes a plurality of sand injection cups, and the second detection member includes a pressure sensor, and the pressure sensor is arranged at the bottom of the sand injection cup.
10. The automatic sand filling device according to claim 7, characterized in that: The automatic sand filling device further comprises a control mechanism, and the control mechanism is electrically connected to the adjustment mechanism and the detection mechanism.