Automatic liquid adding device for die casting forming

Abstract

The invention relates to the technical field of die casting machines, in particular to a die casting forming automatic liquid adding device which comprises a smelting furnace and a mechanical arm. Wherein an opening is formed in the upper portion of the smelting furnace, a movable assembly is arranged on the smelting furnace, an isolation hopper is arranged on the movable assembly, and the movable assembly can drive the isolation hopper to be close to or away from the opening; a material scooping spoon is arranged on the mechanical arm, the mechanical arm can drive the material scooping spoon to be inserted into the isolation hopper, and when the material scooping spoon and the isolation hopper sink into the smelting furnace, the isolation hopper can separate the outer wall of the material scooping spoon from molten metal in the smelting furnace. The method has the effect of reducing material waste.

Description

Technical Field

[0001] The present application relates to the technical field of die-casting machines, and in particular to an automatic liquid adding device for die-casting molding. Background Art

[0002] At present, die casting is a metal casting process that is widely used in the production of various metal products. The die casting machine is the key equipment to realize this process. Its working principle is to inject the molten metal raw materials into a precisely designed mold, and quickly cool and shape them through high pressure to produce metal blanks with a certain shape and size. This process includes the steps of metal melting, metal melt transportation, injection into the mold, and subsequent cooling and demolding. In the related technology, after the metal raw materials are melted in the furnace, a hopper is needed to scoop the molten metal out of the furnace and transfer it to the die casting machine.

[0003] Regarding the above-mentioned related technologies: when the hopper scoops out the molten metal from the furnace, part of the molten metal will adhere to the outer surface of the hopper, and when the hopper is moved to the die-casting machine, the attached molten metal will drip from the hopper, resulting in material waste. Summary of the invention

[0004] In order to reduce material waste, the present application provides an automatic liquid adding device for die casting molding.

[0005] The present application provides an automatic liquid adding device for die casting, which adopts the following technical solution: An automatic liquid adding device for die casting molding, comprising: A furnace, wherein the furnace has an opening at the top, a movable component is disposed on the furnace, an isolation bucket is disposed on the movable component, and the movable component can drive the isolation bucket to approach or move away from the opening; A robotic arm is provided with a scoop, and the robotic arm can drive the scoop to be inserted into the isolation bucket. When the scoop and the isolation bucket are sunk into the furnace, the isolation bucket can separate the outer wall of the scoop from the molten metal in the furnace.

[0006] By adopting the above technical solution, when the molten metal needs to be transferred to the die-casting machine, the scoop is first driven by the mechanical arm to be inserted into the isolation bucket, and then the scoop and the isolation bucket are sunk into the furnace together, so that the molten metal in the furnace flows into the scoop, and finally, the scoop and the isolation bucket are taken out of the furnace, and the scoop is transferred to a position close to the die-casting machine by the mechanical arm, so as to facilitate the transfer of the molten metal to the die-casting machine. In this process, when the scoop and the isolation bucket are sunk into the furnace together, the isolation bucket can separate the outer wall of the scoop from the molten metal in the furnace, so that the outer wall of the scoop is not easy to directly contact the molten metal in the furnace, which is conducive to reducing the possibility of the molten metal adhering to the surface of the scoop, making it difficult for the molten metal to drip from the scoop, thereby reducing the waste of materials and reducing the production cost to a certain extent.

[0007] Optionally, an abutment ring is provided on the scoop spoon along the circumference, and an abutment groove is opened on the isolation bucket along the circumference, and the abutment ring is inserted into the abutment groove and fits against the inner wall of the abutment groove.

[0008] By adopting the above technical scheme, the abutment ring on the scoop cooperates with the abutment groove on the isolation bucket. When the scoop is inserted into the isolation bucket, the abutment ring is inserted into the abutment groove and fits tightly with the inner wall of the abutment groove, thereby forming a sealing structure to effectively prevent the molten metal in the furnace from entering the gap between the scoop and the isolation bucket, making it difficult for the molten metal to adhere to the surface of the scoop, thereby helping to reduce the waste of molten metal, and can ensure that the scoop only carries a target amount of molten metal when scooping materials, thereby improving the feeding accuracy and degree of automation.

[0009] Optionally, a first slope is provided on the abutment ring, and the first slope is inclined in a direction away from the robotic arm. A second slope is provided on the isolation bucket, and when the abutment ring is inserted into the abutment groove, the first slope is flush with the second slope.

[0010] By adopting the above technical solution, when the abutment ring is inserted into the abutment groove, the first inclined surface is flush with the second inclined surface, so that the scoop spoon can smoothly complete the positioning and fitting actions when inserted into the isolation bucket, thereby improving the stability of the connection between the scoop spoon and the isolation bucket, thereby ensuring the accuracy and reliability of the scooping process, and when the scoop spoon and the isolation bucket move out of the furnace, the molten metal remaining on the first inclined surface and the second inclined surface will flow back into the furnace along the first inclined surface and the second inclined surface, which is conducive to reducing the possibility of the molten metal remaining on the first inclined surface flowing to the outer wall of the scoop spoon after the scoop spoon and the isolation bucket are separated, thereby further reducing material waste.

[0011] Optionally, a protrusion is provided on one side of the scooping spoon along its own axial direction, and an end of the protrusion away from the scooping spoon is connected to the robotic arm.

[0012] By adopting the above technical solution, the setting of the protrusion, on the one hand, makes the scooping spoon have better structural stability and scooping accuracy when driven by the mechanical arm, so as to ensure the stability and accuracy of the scooping amount during the scooping process; on the other hand, a certain height difference is created between the connection between the mechanical arm and the protrusion and the upper opening of the scooping spoon, so as to reduce the possibility of the mechanical arm contacting with the molten metal when the scooping spoon enters the furnace to feed, which is beneficial to avoid damage to the mechanical arm, and further helps to extend the service life of the mechanical arm, so as to improve the reliability of the entire liquid adding device.

[0013] Optionally, the movable component includes a bracket, an elastic member and a connecting member, the bracket is arranged on the furnace, a slide groove is provided on the bracket, the slide groove is located above the opening, the elastic member is arranged in the slide groove, the connecting member is slidably inserted in the slide groove and connected to the elastic member, one end of the connecting member extends out of the slide groove and is connected to the isolation bucket, and the elastic member can drive the isolation bucket to move above the opening through the connecting member.

[0014] By adopting the above technical solution, when the robot arm drives the scoop to insert into the isolation bucket, the robot arm can apply pressure to the isolation bucket through the scoop, so that the isolation bucket moves into the furnace, so that the molten metal in the furnace can flow into the scoop. In this process, the isolation bucket can drive the connecting piece to slide in the slide groove, and the connecting piece can apply pressure to the elastic piece to compress the elastic piece. And when the robot arm drives the scoop to separate from the isolation bucket, the elastic piece can drive the isolation bucket to reset through the connecting piece to separate the isolation bucket from the furnace, which is helpful to avoid the isolation bucket from being immersed in the molten metal for a long time, resulting in the possibility of damage to the isolation bucket; on the other hand, the scoop can be accurately matched with the isolation bucket, which improves the automation and stability of the liquid adding device, thereby simplifying the operation process and reducing the difficulty of equipment maintenance.

[0015] Optionally, the slide groove is designed in a stepped shape, and the smaller end of the slide groove is arranged close to the opening, and the connecting piece is adapted to the shape design of the slide groove and fits with the inner wall of the slide groove.

[0016] By adopting the above technical solution, the slide groove is designed in a stepped shape, so that the connecting piece is not easy to separate from the slide groove, which is beneficial to improving the stability of the connecting piece supporting the isolation bucket.

[0017] Optionally, the robotic arm includes a body, a connecting rod assembly and a driving assembly, the connecting rod assembly is arranged on the body, the driving assembly is arranged on the connecting rod assembly, the scoop is arranged on the connecting rod assembly and connected to the driving assembly, the connecting rod assembly is used to drive the scoop to approach the furnace or the die-casting machine, and the driving assembly is used to drive the scoop to move relative to the connecting rod assembly.

[0018] By adopting the above technical solution, the connecting rod assembly can drive the scoop to approach the furnace or the die-casting machine, and the driving assembly can drive the scoop to move relative to the connecting rod assembly, thereby achieving precise positioning and flexible operation of the scoop between the furnace and the die-casting machine, improving the automation degree and liquid adding accuracy of the liquid adding process, reducing manual operation, and improving production efficiency and safety.

[0019] Optionally, the connecting rod assembly includes a driving shaft, a driving arm, a first connecting rod, a second connecting rod, a third connecting rod and a material taking arm, the driving shaft is arranged on the fuselage, one end of the driving arm is connected to the driving shaft, the other end of the driving arm is hinged to the first connecting rod, and the driving shaft is used to drive the driving arm to rotate; The first connecting rod is hinged to the second connecting rod and the material picking arm respectively, the end of the second connecting rod away from the first connecting rod is hinged to the third connecting rod, the end of the third connecting rod away from the second connecting rod is hinged to the material picking arm, and the end of the material picking arm away from the third connecting rod is respectively connected to the driving assembly and the scooping spoon.

[0020] By adopting the above technical solution, when the scoop needs to be moved toward the direction closer to the furnace or the die-casting machine, the drive shaft works to drive the drive arm to rotate, and the drive arm drives the first connecting rod to swing, and the first connecting rod then drives the material taking arm to swing through the second connecting rod and the third connecting rod to realize the movement of the scoop, thereby realizing the precise scooping of the molten metal in the furnace, improving the degree of automation, simplifying the equipment structure, and reducing the manufacturing cost and maintenance difficulty of the equipment.

[0021] Optionally, the material picking arm includes a fixed rod portion and a movable rod portion, one end of the fixed rod portion is hinged to the first connecting rod and the third connecting rod respectively, the other end of the fixed rod portion is slidably connected to the movable rod portion, the driving assembly includes a sliding driving member and a rotating driving member, the sliding driving member is arranged on the fixed rod portion and connected to the movable rod portion, and the sliding driving member is used to drive the movable rod portion to move; The rotary drive member is arranged on the movable rod portion, the scooping spoon is hinged on the movable rod portion and connected to the rotary drive member, and the rotary drive member is used to drive the scooping spoon to rotate.

[0022] By adopting the above technical solution, when it is necessary to accurately insert the scoop into the isolation bucket and drive the isolation bucket to sink into the furnace, the scoop is first transferred to the top of the isolation bucket by using the fixed rod and the movable rod, and then the sliding drive is started. The sliding drive drives the scoop to be inserted into the isolation bucket through the movable rod, so that the scoop applies pressure to the isolation bucket, thereby facilitating the scoop and the isolation bucket to sink into the furnace, so that the molten metal in the furnace flows into the scoop. When the scoop is transferred to a position close to the die-casting machine, the rotary drive can drive the scoop to rotate, thereby facilitating the pouring of the molten metal in the scoop into the die-casting machine.

[0023] Optionally, a receiving groove is formed at one end of the fixed rod portion close to the movable rod portion, the sliding drive member is arranged in the receiving groove, and one end of the movable rod portion away from the scooping spoon is slidably inserted in the receiving groove.

[0024] By adopting the above technical solution, the sliding drive member is arranged in the accommodating groove, and one end of the movable rod portion can slide in the accommodating groove, thereby, on the one hand, improving the stability of the movable rod portion when driving the scoop to move, so as to avoid the deviation of the scoop and the spillage of the melt due to sliding instability, and on the other hand, it is convenient to use the fixed rod portion to protect the sliding drive member, so as to reduce the possibility of damage to the sliding drive member due to external factors.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the cooperation of the movable components, the isolation bucket and the mechanical arm, the scoop can be inserted into the isolation bucket and sunk into the furnace together with the isolation bucket, so that the isolation bucket can be used to separate the outer wall of the scoop from the molten metal in the furnace, so that the outer wall of the scoop is not easy to directly contact the molten metal in the furnace, thereby reducing the possibility of the molten metal adhering to the surface of the scoop, thereby reducing the waste of materials and reducing the production cost to a certain extent; 2. By providing a protrusion on the scoop, there is a certain height difference between the connection between the mechanical arm and the protrusion and the upper opening of the scoop, so as to reduce the possibility of the mechanical arm contacting with the molten metal when the scoop enters the furnace to feed, thereby helping to avoid damage to the mechanical arm, and further helping to extend the service life of the mechanical arm, so as to improve the reliability of the entire liquid adding device; 3. Through the cooperation of the bracket, the elastic part and the connecting part, when the mechanical arm drives the scoop to separate from the isolation bucket, the elastic part can drive the isolation bucket to reset through the connecting part, so that the isolation bucket can be separated from the furnace. This is helpful to avoid the isolation bucket being immersed in the molten metal for a long time, which may cause the isolation bucket to be damaged; on the other hand, the scoop can be accurately matched with the isolation bucket, which improves the automation and stability of the liquid adding device, thereby simplifying the operation process and reducing the difficulty of equipment maintenance; 4. Through the mutual cooperation of the fixed rod, the movable rod, the sliding drive and the rotating drive, the scoop can be accurately inserted into the isolation bucket, so that the molten metal in the furnace can flow into the scoop, and the scoop can pour the molten metal it carries into the die-casting machine, which is beneficial to improve the automation degree and liquid addition accuracy of the liquid addition process, and then to improve production efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an automatic liquid adding device for die casting molding in an embodiment of the present application.

[0027] Figure 2 It is a partial structural schematic diagram of a scooping spoon inserted into an isolation bucket in an embodiment of the present application.

[0028] Figure 3 is along Figure 2 Section view along line AA.

[0029] Figure 4 is along Figure 2 Cross-sectional view along line BB.

[0030] Figure 5 It is a schematic diagram of the overall structure of an automatic liquid adding device for die casting molding in which a scoop is inserted into an isolation bucket in an embodiment of the present application.

[0031] Description of reference numerals: 1. furnace; 11. opening; 12. movable assembly; 121. bracket; 1211. slide groove; 122. elastic member; 123. connecting member; 2. mechanical arm; 21. fuselage; 22. connecting rod assembly; 221. driving shaft; 222. driving arm; 223. first connecting rod; 224. second connecting rod; 225. third connecting rod; 226. material taking arm; 2261. fixed rod; 2262. movable rod; 2263. containing groove; 23. driving assembly; 231. sliding driving member; 232. rotating driving member; 3. isolating bucket; 31. abutting groove; 32. second inclined surface; 4. scooping spoon; 41. protrusion; 42. abutting ring; 421. first inclined surface. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-5 This application is described in further detail.

[0033] The embodiment of the present application discloses an automatic liquid adding device for die casting molding.

[0034] It should be noted that, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] Reference Figure 1 An automatic liquid adding device for die casting molding includes a furnace 1 and a robot arm 2. The furnace 1 has an opening 11 at the top, and a movable component 12 is installed on the furnace 1. The movable component 12 is provided with an isolation bucket 3, and the movable component 12 can drive the isolation bucket 3 to approach or move away from the opening 11. A scoop 4 is provided on the robot arm 2, and the robot arm 2 can drive the scoop 4 to be inserted into the isolation bucket 3. When the scoop 4 and the isolation bucket 3 are sunk into the furnace 1, the isolation bucket 3 can separate the outer wall of the scoop 4 from the molten metal in the furnace 1, so that the molten metal is not easy to adhere to the surface of the scoop 4, thereby reducing the waste of materials and reducing the production cost to a certain extent.

[0036] Reference Figure 2 and Figure 3 The movable assembly 12 includes a bracket 121, an elastic member 122 and a connecting member 123. The bracket 121 is installed in the furnace 1 (refer to Figure 1 ), the bracket 121 is provided with a slide groove 1211, and the slide groove 1211 is located at the opening 11 (refer to Figure 1 ) above. In this embodiment, the slide groove 1211 is designed as a stepped groove, and the smaller end of the slide groove 1211 is close to the opening 11 (refer to Figure 1 )set up.

[0037] Reference Figure 3 The connecting member 123 is adapted to the shape of the chute 1211, and the connecting member 123 is slidably inserted in the chute 1211 and fits against the inner wall of the chute 1211, so that the connecting member 123 is not easy to be separated from the chute 1211. One end of the connecting member 123 extends out of the chute 1211, and the end of the connecting member 123 extending out of the chute 1211 is fixedly connected to the isolation bucket 3. In other embodiments, the connecting member 123 can also be detachably connected to the isolation bucket 3.

[0038] The elastic member 122 is disposed in the slide groove 1211, and the elastic member 122 is fixedly connected to the connecting member 123. In this embodiment, the elastic member 122 is a spring, so that the elastic member 122 can push the connecting member 123 to move.

[0039] Reference Figure 1 and Figure 3 When the isolation bucket 3 is not subjected to external force, the elastic member 122 can keep the isolation bucket 3 above the opening 11 through the connecting member 123, so as to reduce the possibility of damage to the isolation bucket 3 caused by the isolation bucket 3 being immersed in the molten metal for a long time. In other embodiments, the elastic member 122 can also be replaced by a screw drive mechanism.

[0040] Reference Figure 1 The robot arm 2 includes a body 21, a connecting rod assembly 22 and a driving assembly 23. The connecting rod assembly 22 is arranged on the body 21, the driving assembly 23 is arranged on the connecting rod assembly 22, and the scoop 4 is arranged on the connecting rod assembly 22 and connected to the driving assembly 23.

[0041] The connecting rod assembly 22 includes a driving shaft 221, a driving arm 222, a first connecting rod 223, a second connecting rod 224, a third connecting rod 225 and a material taking arm 226. The driving shaft 221 is mounted on the body 21, and one end of the driving arm 222 is fixedly connected to the driving shaft 221. In this embodiment, the driving shaft 221 is a stepping motor, so that the driving arm 222 can be driven to rotate by the driving shaft 221.

[0042] The end of the driving arm 222 away from the driving shaft 221 is hinged to the first connecting rod 223. The first connecting rod 223 is hinged to the second connecting rod 224 and the material taking arm 226 respectively. The end of the second connecting rod 224 away from the first connecting rod 223 is hinged to the third connecting rod 225. The end of the third connecting rod 225 away from the second connecting rod 224 is hinged to the material taking arm 226.

[0043] Reference Figure 1 and Figure 4 The material taking arm 226 includes a fixed rod 2261 and a movable rod 2262. One end of the fixed rod 2261 is hinged to the first connecting rod 223 and the third connecting rod 225 respectively, and the other end of the fixed rod 2261 is provided with a receiving groove 2263, and one end of the movable rod 2262 is slidably inserted in the receiving groove 2263 and fits against the inner wall of the receiving groove 2263.

[0044] The driving assembly 23 includes a sliding driving member 231 and a rotating driving member 232. The sliding driving member 231 is disposed in the receiving groove 2263 and fixedly connected to the movable rod 2262, and one end of the movable rod 2262 away from the fixed rod 2261 is fixedly connected to the rotating driving member 232. In this embodiment, the sliding driving member 231 is a cylinder or an electric push rod, so that the sliding driving member 231 is used to drive the movable rod 2262 to move.

[0045] Reference Figure 1 and Figure 4A protrusion 41 is integrally formed on one side of the scoop 4 along its own axis direction, and one end of the protrusion 41 away from the scoop 4 is hinged to the movable rod 2262 and fixedly connected to the rotary drive member 232. In this embodiment, the rotary drive member 232 adopts a servo motor or a stepper motor, so that the rotary drive member 232 is used to drive the scoop 4 to rotate, so as to realize the tilting action of the scoop 4.

[0046] The setting of the protrusion 41 ensures that there is a certain height difference between the connection between the movable rod 2262 and the protrusion 41 and the upper opening of the scoop 4, so as to reduce the possibility of the movable rod 2262 and the rotating drive member 232 respectively contacting the molten metal when the scoop 4 enters the furnace 1 to feed materials, thereby helping to avoid damage to the movable rod 2262 and the rotating drive member 232.

[0047] Reference Figure 4 and Figure 5 When the scoop 4 needs to carry a target amount of molten metal, the driving shaft 221 is first started, the driving shaft 221 drives the driving arm 222 to rotate, the driving arm 222 drives the first connecting rod 223 to swing, the first connecting rod 223 then drives the fixed rod 2261 to swing through the second connecting rod 224 and the third connecting rod 225, and the fixed rod 2261 drives the movable rod 2262 to swing, so as to move the scoop 4 to the top of the isolation bucket 3. Then the sliding drive 231 is started, the sliding drive 231 drives the scoop 4 to be inserted into the isolation bucket 3 through the movable rod 2262, and the scoop 4 applies pressure to the isolation bucket 3, so that the scoop 4 and the isolation bucket 3 sink into the furnace 1, so as to facilitate the molten metal in the furnace 1 to flow into the scoop 4, and then facilitate the scoop 4 to carry the target amount of molten metal.

[0048] In this embodiment, the scoop 4 and the isolation bucket 3 are both made of high-temperature resistant alloy materials and can withstand high-temperature environments to improve safety.

[0049] Reference Figure 3 The top of the scoop 4 is integrally formed with an abutment ring 42 along the circumferential direction, and the top of the isolation bucket 3 is provided with an abutment groove 31 along the circumferential direction. When the scoop 4 is inserted into the isolation bucket 3, the abutment ring 42 is inserted into the abutment groove 31 and fits with the inner wall of the abutment groove 31, thereby effectively preventing the molten metal in the furnace 1 from entering the gap between the scoop 4 and the isolation bucket 3, making it difficult for the molten metal to adhere to the surface of the scoop 4, thereby helping to reduce the waste of the molten metal.

[0050] Reference Figure 1 and Figure 3, a first inclined surface 421 is provided on the abutting ring 42, and the first inclined surface 421 is inclined in a direction away from the movable rod portion 2262, and a second inclined surface 32 is provided on the isolation bucket 3. When the abutting ring 42 is inserted into the abutting groove 31, the first inclined surface 421 is flush with the second inclined surface 32, so that when the scoop 4 and the isolation bucket 3 move out of the furnace 1, the molten metal remaining on the first inclined surface 421 and the second inclined surface 32 will flow back into the furnace 1 along the first inclined surface 421 and the second inclined surface 32, which is conducive to reducing the possibility that the molten metal remaining on the first inclined surface 421 flows to the outer wall of the scoop 4 after the scoop 4 and the isolation bucket 3 are separated, further reducing the waste of materials.

[0051] The implementation principle of the automatic liquid adding device for die casting molding in the embodiment of the present application is as follows: when the molten metal needs to be transferred to the die casting machine, the driving shaft 221 is first started, the driving shaft 221 drives the driving arm 222 to rotate, the driving arm 222 drives the first connecting rod 223 to swing, the first connecting rod 223 then drives the fixed rod 2261 to swing through the second connecting rod 224 and the third connecting rod 225, and the fixed rod 2261 drives the movable rod 2262 to swing, so as to move the scoop 4 to the top of the isolation bucket 3. Then the sliding drive 231 is started, the sliding drive 231 drives the scoop 4 to be inserted into the isolation bucket 3 through the movable rod 2262, and applies pressure to the isolation bucket 3 through the scoop 4, so that the scoop 4 and the isolation bucket 3 are sunk into the furnace 1, so that the molten metal in the furnace 1 flows into the scoop 4, and after the target amount of molten metal is stored in the scoop 4, the sliding drive 231 works in the reverse direction to separate the scoop 4 from the isolation bucket 3. At the same time, the elastic member 122 separates the isolation bucket 3 from the furnace 1 through the connecting member 123 .

[0052] Next, the driving shaft 221 rotates in the opposite direction to drive the scoop 4 to move to a position close to the die casting machine through the driving arm 222, the first connecting rod 223, the second connecting rod 224, the third connecting rod 225, the fixed rod 2261 and the movable rod 2262. Finally, the rotary driving member 232 is started, and the rotary driving member 232 drives the scoop 4 to tilt so as to pour the molten metal into the die casting machine.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic liquid adding device for die casting, characterized in that: include: A furnace (1), the furnace (1) having an opening (11) at the top, the furnace (1) being provided with a movable component (12), the movable component (12) being provided with an isolation bucket (3), the movable component (12) being capable of driving the isolation bucket (3) to move closer to or away from the opening (11); A mechanical arm (2), wherein a scoop (4) is provided on the mechanical arm (2), and the mechanical arm (2) is capable of driving the scoop (4) to be inserted into the isolation bucket (3); when the scoop (4) and the isolation bucket (3) are sunk into the furnace (1), the isolation bucket (3) is capable of isolating the outer wall of the scoop (4) from the molten metal in the furnace (1).

2. The automatic liquid adding device for die casting according to claim 1, characterized in that: An abutment ring (42) is provided on the scoop spoon (4) along the circumference, an abutment groove (31) is provided on the isolation bucket (3) along the circumference, and the abutment ring (42) is inserted into the abutment groove (31) and fits against the inner wall of the abutment groove (31).

3. The automatic liquid adding device for die casting according to claim 2, characterized in that: The abutment ring (42) is provided with a first inclined surface (421), the first inclined surface (421) being inclined in a direction away from the mechanical arm (2), and the isolation bucket (3) is provided with a second inclined surface (32), and when the abutment ring (42) is inserted into the abutment groove (31), the first inclined surface (421) is flush with the second inclined surface (32).

4. The automatic liquid adding device for die casting according to claim 1, characterized in that: A protrusion (41) is provided on one side of the scooping spoon (4) along its own axial direction, and an end of the protrusion (41) away from the scooping spoon (4) is connected to the mechanical arm (2).

5. The automatic liquid adding device for die casting according to claim 1, characterized in that: The movable component (12) comprises a bracket (121), an elastic member (122) and a connecting member (123); the bracket (121) is arranged on the melting furnace (1); a slide groove (1211) is provided on the bracket (121); the slide groove (1211) is located above the opening (11); the elastic member (122) is arranged in the slide groove (1211); the connecting member (123) is slidably inserted in the slide groove (1211) and connected to the elastic member (122); one end of the connecting member (123) extends out of the slide groove (1211) and is connected to the isolation bucket (3); the elastic member (122) can drive the isolation bucket (3) to move to above the opening (11) through the connecting member (123).

6. The automatic liquid adding device for die casting according to claim 5, characterized in that: The slide groove (1211) is designed in a stepped shape, and the smaller end of the slide groove (1211) is arranged close to the opening (11). The connecting piece (123) is adapted to the shape design of the slide groove (1211) and fits with the inner wall of the slide groove (1211).

7. The automatic liquid adding device for die casting according to claim 1, characterized in that: The robot arm (2) comprises a body (21), a connecting rod assembly (22) and a driving assembly (23); the connecting rod assembly (22) is arranged on the body (21); the driving assembly (23) is arranged on the connecting rod assembly (22); the scoop (4) is arranged on the connecting rod assembly (22) and connected to the driving assembly (23); the connecting rod assembly (22) is used to drive the scoop (4) to approach the furnace (1) or the die-casting machine; and the driving assembly (23) is used to drive the scoop (4) to move relative to the connecting rod assembly (22).

8. The automatic liquid adding device for die casting according to claim 7, characterized in that: The connecting rod assembly (22) comprises a driving shaft (221), a driving arm (222), a first connecting rod (223), a second connecting rod (224), a third connecting rod (225) and a material taking arm (226); the driving shaft (221) is arranged on the machine body (21); one end of the driving arm (222) is connected to the driving shaft (221); the other end of the driving arm (222) is hinged to the first connecting rod (223); and the driving shaft (221) is used to drive the driving arm (222) to rotate; The first connecting rod (223) is hinged to the second connecting rod (224) and the material picking arm (226) respectively; one end of the second connecting rod (224) away from the first connecting rod (223) is hinged to the third connecting rod (225); one end of the third connecting rod (225) away from the second connecting rod (224) is hinged to the material picking arm (226); one end of the material picking arm (226) away from the third connecting rod (225) is connected to the driving assembly (23) and the scoop (4) respectively.

9. The automatic liquid adding device for die casting according to claim 8, characterized in that: The material taking arm (226) comprises a fixed rod portion (2261) and a movable rod portion (2262), one end of the fixed rod portion (2261) is hinged to the first connecting rod (223) and the third connecting rod (225) respectively, and the other end of the fixed rod portion (2261) is slidably connected to the movable rod portion (2262), and the driving assembly (23) comprises a sliding driving member (231) and a rotating driving member (232), the sliding driving member (231) is arranged on the fixed rod portion (2261) and connected to the movable rod portion (2262), and the sliding driving member (231) is used to drive the movable rod portion (2262) to move; The rotary drive member (232) is arranged on the movable rod portion (2262), the scooping spoon (4) is hinged on the movable rod portion (2262) and connected to the rotary drive member (232), and the rotary drive member (232) is used to drive the scooping spoon (4) to rotate.

10. The automatic liquid adding device for die casting according to claim 9, characterized in that: An end of the fixed rod portion (2261) close to the movable rod portion (2262) is provided with a receiving groove (2263), the sliding drive member (231) is arranged in the receiving groove (2263), and an end of the movable rod portion (2262) away from the scooping spoon (4) is slidably inserted in the receiving groove (2263).

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