Die-casting production line and process

Abstract

The die-casting production line comprises a smelting furnace system, a die-casting machine, a cooling device, an edge removing device, a grinding device and a vibration grinding device, the die-casting machine comprises a feeding device, the feeding device comprises a material pushing cavity, a material pushing rod and a feeding mechanical arm, one end of the material pushing cavity is open and serves as a discharging port of molten aluminum, and the other end of the material pushing cavity is open and serves as a discharging port of the molten aluminum; the other end of the material pushing cavity is open, the end of the material pushing rod enters the material pushing cavity through the opening in the end, and the top face of the material pushing cavity is open and serves as a feeding port of molten aluminum; a feeding filtering part is arranged outside an opening in the top surface of the pushing cavity, and molten aluminum enters the pushing cavity after being filtered by the feeding filtering part; the feeding mechanical arm pours molten aluminum in the smelting furnace system into the pushing cavity by controlling the soup ladle. The feeding filtering part is arranged above the material pushing cavity, so that dregs in the metal solution can be filtered out; and the multiple cooling water ponds are arranged, and the temperatures of the cooling water ponds are different, so that the problems of deformation, cracks and the like are effectively avoided.

Description

Technical Field

[0001] The invention relates to the field of die casting, and in particular to a die casting production line and process. Background Art

[0002] Die casting machine is a precision molding equipment used to manufacture metal parts by injecting molten metal liquid into the mold cavity to form the desired shape and size. Die casting technology is widely used in many industries such as automobiles, aerospace, electronics, and home appliances because this process can efficiently produce parts with complex structures, high surface quality and high dimensional accuracy.

[0003] like Figure 1 and Figure 2 The figure shows the schematic diagram of the structure of the aluminum die casting equipment, including the movable die and the fixed die. The forming process of the die casting is as follows: the furnace melts the aluminum ingot, such as Figure 3 As shown, the molten aluminum liquid is poured into the pusher cavity, the movable mold and the fixed mold are closed, and the pusher rod pushes the aluminum liquid in the pusher cavity into between the fixed mold and the movable mold to form the required casting. After the casting is formed, it is taken down, cooled and sent to the deburring station for manual or machine deburring (the edge of the die casting will have a circle of burrs or flash after the die casting is completed). After deburring, it enters the grinding equipment for grinding and polishing, and finally according to customer requirements, it is vibrated and polished.

[0004] The above equipment production line has the following defects:

[0005] 1. During the melting process of aluminum ingots in a furnace, slag may be generated. These slags are mainly formed by the oxidation of impurities in the aluminum ingots at high temperatures or by reactions with other elements to form compounds, such as alumina. If these slags are not removed, they may be mixed into the molten aluminum liquid, affecting the quality of the final casting, such as reducing the strength and corrosion resistance of the casting. At present, the main method is to add refining agents during melting and remove them by chemical methods, but the removal is not thorough. There is also a method of manually removing the slag, which is effective but too dangerous;

[0006] 2. The process of pouring aluminum liquid into the pusher cavity is achieved by controlling the spoon through the mechanical arm. During the pouring process, since the aluminum liquid is in a high-temperature boiling state and the pusher cavity is relatively shallow, the aluminum liquid will splash out, affecting the production environment and the safety of surrounding workers. At the same time, if the boiling aluminum liquid is not properly cooled, hollowing will form in the casting, affecting the quality of the casting. In addition, as mentioned in the first point above, there will be slag in the metal liquid, and the filtration of the furnace system is not thorough, which may affect the quality of the casting;

[0007] 3. After die casting, the movable mold and the fixed mold need to be cooled and lubricated for the next die casting. At present, the spraying of lubricant is achieved by a robotic arm, which has good effect and low cost. However, cooling is achieved by setting cooling channels inside the mold to achieve internal cooling, but this is very costly. When replacing the mold, it is necessary to open a cooling channel in the new mold, which is a cumbersome process.

[0008] 4. At present, the cooling of aluminum castings is mainly achieved by water cooling and air drying, but there is no good control method for the cooling speed. Each type (material, structure, etc.) of die castings has a specific temperature change curve. Local cooling that is too fast or too slow will cause deformation, cracks and other problems;

[0009] 5. Due to the complexity of the shape of the casting, the grinding and polishing process is mainly carried out manually. If the waste chips generated during the process are not handled in time, they will easily form dust under the influence of the external environment, affecting the cleanliness of the workshop and the health of the workers. The current grinding and polishing equipment does not have a simple and low-cost waste chip recovery structure;

[0010] 6. Vibration grinding and polishing is achieved through a vibrating sand machine. For small castings, a small vibrating sand machine can be selected. After grinding, the grinding medium is manually pulled apart to take out the casting (also called separation). However, for large castings, the grinding medium is very large and manual separation is time-consuming and laborious. The existing vibrating sand machine has a magnetic separation mechanism (see patent CN201822244762.2 for details), but it can only solve the separation of magnetic castings, but not the separation of aluminum castings.

[0011] Based on this, this case is brought forward. Summary of the invention

[0012] One of the purposes of the present invention is to provide a die-casting production line to solve the problems existing in the background technology.

[0013] In order to achieve the above object, the technical solution of the present invention is as follows:

[0014] A die-casting production line comprises a furnace system, a die-casting machine, a cooling device, a deburring device, a grinding device and a vibration grinding device, wherein the die-casting machine comprises a feeding device, which comprises a pusher cavity, a pusher rod and a feeding mechanical arm, wherein one end of the pusher cavity is open and serves as a discharge port for aluminum liquid, and the other end of the pusher cavity is open, and the end of the pusher rod enters the pusher cavity through the end opening, and the top surface of the pusher cavity is open and serves as a feed port for aluminum liquid; a feed filter is provided outside the top surface opening of the pusher cavity, and the aluminum liquid enters the pusher cavity after being filtered by the feed filter; a soup spoon is provided on the feeding mechanical arm, and the feeding mechanical arm controls the soup spoon to pour the aluminum liquid in the furnace system into the pushing cavity.

[0015] Furthermore, the feed filter unit includes an outer cylinder and an inner cylinder, the feeding device includes a filter screen replacement mechanical arm, the upper and lower ends of the outer cylinder are open and hollow, the opening diameters of the two ends of the outer cylinder are larger than the opening diameter of the top surface of the pushing cavity, and the lower part of the outer cylinder is fixed outside the top surface opening of the pushing cavity;

[0016] The inner cylinder can be just loaded into the hollow part of the outer cylinder. The upper and lower ends of the inner cylinder are open and hollow, and the upper opening diameter is larger than the lower opening diameter, and the lower opening diameter is equal to the top opening diameter of the pushing cavity. A feed filter located in the hollow part of the inner cylinder is fixed on the lower opening of the inner cylinder. The feed filter is a truncated cone structure with a small top and a large bottom. A lifting ring is provided on the feed filter to expose the outer cylinder. The filter replacement mechanical arm disassembles and installs the feed filter by grabbing the lifting ring.

[0017] The inner diameter of the hollow portion of the outer cylinder gradually decreases from the top to the bottom, forming an inverted truncated cone cavity, and the outer diameter of the inner cylinder gradually decreases from the top to the bottom, forming an inverted truncated cone shape.

[0018] Furthermore, a portion of the push rod entering the push cavity is provided with a built-in cooling water channel, and the cooling water channel forms a cooling water inlet and a cooling water outlet at the side wall of the push rod.

[0019] Further, the furnace system includes a tiltable furnace, a holding furnace, a turntable, a spray cooling unit and a waste liquid tank, the turntable includes a liftable base and a turntable located above the base, the holding furnace and the waste liquid tank are respectively located on both sides of the turntable, a pocket-shaped filter that can be located above the holding furnace or the waste liquid tank is installed on the turntable, the furnace is located on one side of the holding furnace, after the furnace is tilted, the molten aluminum liquid is poured into the holding furnace through the pocket-shaped filter, the spray cooling unit is located above the waste liquid tank, and is used to cool the pocket-shaped filter;

[0020] The base is provided with an electromagnet for attracting the turntable;

[0021] The rotating disk is provided with a vibrator for vibrating the pocket-shaped filter screen.

[0022] Further, the die-casting machine includes a frame, a movable die and a fixed die, the frame is provided with a cooling and lubricating device, the cooling and lubricating device includes a cooling and lubricating rotating unit, a cooling and lubricating lifting unit and a cooling and lubricating seat, the cooling and lubricating rotating unit is fixed on the frame, the rotating end of the cooling and lubricating lifting unit is fixed to the cooling and lubricating lifting unit, the lifting end of the cooling and lubricating lifting unit is fixed to the cooling and lubricating seat, after the movable die and the fixed die are separated, the cooling and lubricating seat can be lowered into between the two;

[0023] A cooling water nozzle and an air blowing port are provided on one side of the cooling and lubricating seat, a lubricant nozzle and an air blowing port are provided on the opposite side, and a cooling water pipeline, a lubricating liquid pipeline and an air duct are provided inside the cooling and lubricating seat;

[0024] The bottom surface of the cooling and lubricating seat is provided with two liquid receiving pans respectively located below the cooling water nozzle and the lubricant nozzle, and the outer side of the liquid receiving pan just fits with the side wall of the movable mold or the side wall of the fixed mold after separation. The cooling and lubricating seat is provided with a cooling water recovery flow channel and a lubricating liquid recovery flow channel. The bottom surface of the liquid receiving pan is an inclined surface inclined toward the cooling and lubricating seat side, which is used to guide the cooling water in the pan into the cooling water recovery flow channel and guide the lubricating liquid in the pan into the lubricating liquid recovery flow channel.

[0025] A waste liquid tank and a waste liquid discharge pipeline are arranged on the bottom surface of the die-casting machine between the movable die and the fixed die.

[0026] Further, the cooling device includes a transfer robot arm, a cooling loading conveyor belt, N cooling water pools, a cooling unloading conveyor belt, a cooling air drying unit and a cooling truss robot arm;

[0027] The transfer robot arm is used to remove the casting from the die-casting machine and transfer it to the cooling feeding conveyor belt;

[0028] The cooling feeding conveyor belt is used to move the casting to the cooling water pool side;

[0029] The N cooling water pools are arranged in a straight line, and each cooling water pool is provided with a temperature sensor, a drug concentration sensor and a heating device. The cooling water pool is connected to a circulation pipeline, and a filter, a water supply pipe and a drug adding pipe are installed on the circulation pipeline; the temperature sensor is used to monitor the water temperature of the cooling water pool in real time, and the drug concentration sensor is used to monitor the drug concentration of the cooling water pool in real time. The water in the cooling water pool is filtered to remove impurities through a filter, and water is replenished through a water supply pipe, and drug concentration is replenished through a drug adding pipe;

[0030] The cooling unloading conveyor belt is used to move the casting to the side of the edge removal device. The cooling unloading conveyor belt is a mesh belt, and a water receiving pan and a drainage pipe are provided below.

[0031] The cooling air drying unit is located above the cooling unloading conveyor belt and is used to air dry the castings on the cooling unloading conveyor belt;

[0032] The cooling truss robot arm can be lifted vertically and moved along the arrangement direction of the cooling water pools, and is used to transfer the castings on the cooling loading conveyor belt to the cooling water pools, and move the castings from the previous cooling water pool to the next cooling water pool, and finally transfer the castings from the cooling water pool to the cooling unloading conveyor belt.

[0033] Further, the grinding device includes a grinding chamber, a grinding belt assembly, a grinding drive unit, a water guide plate, a water tank, a water pump, a return channel, a waste chip tank, a guard plate and a clean water tank;

[0034] The water guide plate is placed vertically, the upper part of which is a vertical plate extending to the top of the grinding chamber, and the lower part of which is a horizontal plate extending to the bottom of the grinding chamber, the middle part of which is a curved surface, and a reflux hole is opened on the curved surface;

[0035] The grinding belt assembly is installed in the grinding chamber and driven by the grinding drive unit. The grinding belt assembly is located at the front side of the water guide plate.

[0036] The waste chip trough is located at the rear side of the water guide plate, the two ends of the return channel are respectively connected to the return hole and the waste chip trough, and the side of the waste chip trough is provided with a detachable gate plate and a filter plate;

[0037] The clean water tank is adjacent to the filter plate side of the waste chip tank;

[0038] The water tank is installed on the top of the water guide plate, the water outlet of the water tank is arranged on the front side of the water guide plate, the water pump is installed in the clean water tank, and the water outlet of the water pump extends to the water tank through a pipeline;

[0039] The guard plate is installed on the outer side of the grinding belt assembly.

[0040] Further, the vibration grinding device includes a feeding conveyor belt for cleaning, a cleaning tank, a truss mechanical arm for cleaning, a feeding conveyor belt for cleaning, a drying unit for cleaning, a vibration base, and an annular grinding tank installed above the vibration base;

[0041] The annular grinding groove is provided with a discharge port in the tangent direction, and a section of arc-shaped mesh plate is provided on the top surface of the grinding groove, one end of the mesh plate is connected to the discharge port in the tangent direction, and the other end is provided with a detachable and inclined mesh climbing plate; when discharging, one end of the mesh climbing plate is connected to the other end of the mesh plate, and the other end of the mesh climbing plate is connected to the bottom surface of the grinding groove; when grinding, the mesh climbing plate is moved out of the grinding groove; the apertures of the mesh plate and the mesh climbing plate are larger than the particle size of the grinding medium and smaller than the size of the casting;

[0042] One end of the cleaning feeding conveyor belt is connected to the tangential discharge port of the grinding tank, and the other end is connected to one end of the cleaning tank. The cleaning unloading conveyor belt is arranged at the other end of the cleaning tank. The cleaning unloading conveyor belt is a mesh belt, and a water receiving tray and a drainage pipe are arranged below. The cleaning air drying unit is arranged above the cleaning unloading conveyor belt;

[0043] The cleaning truss mechanical arm can be lifted vertically and moved horizontally, and is used to convey the castings on the cleaning loading conveyor belt to the cleaning water pool, and move the castings in the cleaning water pool to the cleaning unloading conveyor belt.

[0044] Furthermore, it includes a climbing plate moving part, the bottom surface of the grinding groove is provided with a guide hole, the inner wall of the grinding groove is provided with a guide rail groove between the guide hole and the other end of the mesh plate, the mesh climbing plate is slidably connected to the guide rail groove and can slide along the guide rail groove, and is driven by the climbing plate moving part;

[0045] The bottom surface of the grinding trough is provided with a discharge port, and the outer wall of the bottom surface of the grinding trough is slidably connected with a closed blanking plate and a blanking plate moving part, and the plate surface of the closed blanking plate is composed of a filter section, a closed section and an opening section in sequence along the sliding direction. When the filter section corresponds to the discharge port, it is used to filter out debris in the grinding trough, when the closed section corresponds to the discharge port, it is used to block the bottom discharge port of the grinding trough, and when the opening section corresponds to the discharge port, it is used to tilt out the grinding medium in the grinding trough.

[0046] A second object of the present invention is to provide a cooling process based on the above die casting production line, comprising the following steps:

[0047] Determine the water temperature T of the i-th cooling pool i , the water temperature T i Calculated by the following formula:

[0048] T i =a*T env +(T0-T env ) -k(i*Δt) +b;

[0049] Where a is the proportional adjustment coefficient, which is a constant; b is the offset adjustment coefficient, which is a constant; T0 is the initial temperature of the casting before cooling; T env is the ambient temperature; e is the base of the natural logarithm, approximately equal to 2.71828; k is the thermal conductivity of the casting; t is time, Δt = t total / N,t total represents the total cooling time, t total =-1 / k*ln((T f -T env ) / (T0-T env ));T f It is the final temperature of the casting after cooling.

[0050] The advantages of the present invention are:

[0051] 1. By setting a pocket filter above the holding furnace, the slag in the liquid is filtered out during the process of pouring the liquid from the furnace, and the filtered slag is rotated to the other side for cooling so as to recycle the slag;

[0052] 2. By setting a feed filter above the pusher cavity, the slag in the metal solution can be filtered out. At the same time, the feed filter is set, because the height is much greater than the height of the pusher cavity, when the boiling metal liquid is poured in, the splashing of the metal liquid will be much alleviated. In addition, the metal filter can be disassembled and assembled by a manipulator, which is convenient and safe. The present application also sets a cooling pipeline inside the pusher rod to appropriately reduce the temperature of the boiling metal liquid and prevent the die casting from hollowing due to the boiling of the metal liquid.

[0053] 3. By setting up a cooling and lubrication device, a cooling device is added to the original lubrication device in the form of a robotic arm to achieve external cooling of the mold. At the same time, a cooling water and lubricating liquid recovery structure is also set up to achieve cost reduction and efficiency improvement;

[0054] 4. For the cooling of die castings, multiple cooling water pools are set up, and the temperature of each cooling water pool is set differently and in line with the temperature change curve of the casting material, which can ensure that the die castings maintain the ideal microstructure and physical properties during the cooling process, and effectively avoid the occurrence of deformation, cracks and other problems;

[0055] 5. A water circulation structure is set in the grinding and polishing equipment to take away and collect the debris generated by grinding. After the accumulated debris is soaked in water, it can be prevented from being lifted up by external environmental factors;

[0056] 6. In the vibrating sand grinding device, an electric climbing structure is set up. When grinding, the climbing plate is lowered and the casting is effectively ground. When dividing the material, the climbing plate is raised. During the vibration process, the casting climbs onto the horizontal plate through the climbing plate to realize discharge, and the grinding medium returns to the grinding tank due to the mesh holes on the climbing plate and the horizontal plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 It is a schematic diagram of the three-dimensional structure of a die-casting machine in the prior art;

[0058] Figure 2 for Figure 1 A schematic diagram of the main view;

[0059] Figure 3 for Figure 1 A magnified schematic diagram of part A in FIG.

[0060] Figure 4 It is a schematic diagram of the plane layout of the die-casting production line in the embodiment;

[0061] Figure 5 It is a schematic diagram of the arrangement of the furnace system in the embodiment;

[0062] Figure 6 is a schematic diagram of a three-dimensional structure of a tiltable furnace in an embodiment;

[0063] Figure 7 It is a schematic diagram of the structure of the material pushing cavity and the material feeding filter part in the embodiment;

[0064] Figure 8 for Figure 7 Schematic diagram of the completed assembly;

[0065] Fig. 9 A schematic diagram of the arrangement of the cooling water flow channel inside the push rod in the embodiment;

[0066] Fig.10 It is a schematic diagram of a feeding device in an embodiment;

[0067] Fig.11 This is a schematic diagram of the installation of a cooling and lubrication device on a die-casting machine in an embodiment;

[0068] Fig.12 This is a schematic diagram of the structure of the cooling and lubrication device in the embodiment;

[0069] Fig.13 for Fig.11 A magnified schematic diagram of part B in FIG.

[0070] Fig.14 A schematic diagram of the structure of the cooling device in the embodiment;

[0071] Fig.15 It is a schematic diagram of the structure of a cooling water pool of a cooling device of an embodiment;

[0072] Fig.16 , Fig.17 , Fig.18 , Fig.19 Schematic diagram of the structure of the grinding device in the embodiment from different viewing angles;

[0073] Fig. 20 and Fig.21 This is a schematic diagram of a state in which the gate plate and the filter plate at the rear side of the grinding device in the embodiment are lifted;

[0074] Fig. 22 Schematic diagram of the structure of the vibration grinding device in the embodiment;

[0075] Fig.23 A schematic diagram of the three-dimensional structure of the grinding groove in the embodiment;

[0076] Fig.24 This is a top view of the grinding tank in the embodiment, and the mesh climbing plate is not raised at this time;

[0077] Fig.25 This is a schematic diagram of the structure of the blanking plate closing the bottom surface of the grinding groove in the embodiment;

[0078] Fig.26 for Fig.23 Schematic diagram of the structure from another perspective;

[0079] Fig. 27 Schematic diagram of the driving structure of the mesh climbing plate in the embodiment;

[0080] Fig.28 It is a schematic diagram of the state of the mesh climbing plate when it is raised in the grinding tank of the embodiment.

[0081] Description of symbols

[0082] 1. Furnace system; 101. Furnace; 102. Holding furnace; 103. Turntable; 1031. Liftable base; 1032. Turntable; 1033. Pocket filter; 1034. Electromagnet; 1035. Vibrator; 104. Spray cooling unit; 105. Waste liquid tank;

[0083] 2. Die-casting machine; 201. Moving mold; 202. Fixed mold; 203. Feeding device; 2031. Pushing cavity; 2032. Pushing rod; 2033. Feeding mechanical arm; 2034. Outer cylinder; 2035. Inner cylinder; 2036. Filter replacement mechanical arm; 2037. Feeding filter; 2038. Lifting ring; 2039. Cooling water flow channel; 204. Frame; 205. Cooling and lubricating device; 2051. Cooling and lubricating rotating unit; 2052. Cooling and lubricating lifting unit; 2053. Cooling and lubricating seat; 2054. Cooling water nozzle; 2055. Lubricant nozzle; 2056. Blowing port; 2057. Liquid receiving tray; 2058. Waste liquid discharge pipeline;

[0084] 3. Cooling device; 301. Transfer robot arm; 302. Cooling feeding conveyor belt; 303. Cooling water pool; 304. Cooling feeding conveyor belt; 305. Cooling air drying unit; 306. Cooling truss robot arm; 307. Temperature sensor; 308. Drug concentration sensor; 309. Heating device; 310. Filter; 311. Water supply pipe; 312. Dosing pipe;

[0085] 4. Grinding device; 401. Grinding chamber; 402. Grinding belt assembly; 403. Grinding drive unit; 404. Water guide plate; 405. Water tank; 406. Water pump; 407. Return channel; 408. Waste chip trough; 409. Guard plate; 410. Clean water trough; 411. Return hole; 412. Gate plate; 413. Filter plate; 414. Water outlet of water tank;

[0086] 5. Vibration grinding device; 501. Loading conveyor belt for cleaning; 502. Unloading conveyor belt for cleaning; 503. Cleaning tank; 504. Truss mechanical arm for cleaning; 505. Air drying unit for cleaning; 506. Vibration base; 507. Grinding tank; 508. Mesh plate; 509. Mesh climbing plate; 510. Guide hole; 511. Guide rail groove; 512. Unloading port; 513. Closed blanking plate; 5131. Filter section; 5132. Closed section; 5133. Open section;

[0087] 6. Edge removal device. DETAILED DESCRIPTION

[0088] The present invention is further described in detail below in conjunction with the embodiments. It should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" herein are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

[0089] This embodiment provides a die casting production line, such as Figure 4 As shown, along the process flow, it includes a furnace system 1, a die casting machine 2, a cooling device 3, a deburring device 6, a grinding device 4 and a vibration grinding device 5. After the aluminum ingot is melted into aluminum liquid by the furnace system 1, it is poured into the die casting machine 2 for die casting. The formed casting is first cooled, then knocked, deburred, and polished. Finally, it is brightened in the vibration grinding device 5 according to customer needs.

[0090] like Figure 5 and Figure 6 As shown, the furnace system 1 includes a tiltable furnace 101, a holding furnace 102, a turntable 103, a spray cooling unit 104 and a waste liquid tank 105, the turntable 103 includes a liftable base 1031 and a turntable 1032 located above the base, the holding furnace 102 and the waste liquid tank 105 are respectively located on both sides of the turntable 103, and a pocket filter 1033 that can be located above the holding furnace 102 or the waste liquid tank 105 is installed on the turntable 1032. The furnace 101 is located on one side of the holding furnace 102. After the furnace 101 is tilted, the molten aluminum liquid is poured into the holding furnace 102 through the pocket filter 1033. The spray cooling unit 104 is located above the waste liquid tank 105 and is used to cool the pocket filter 1033.

[0091] The use of the furnace system 1 includes the following process: a worker puts an aluminum ingot into the furnace 101, and the furnace 101 melts the aluminum ingot and then pours it out. At this time, the pocket filter 1033 is driven by the turntable 1032 to the top of the insulation furnace 102, and the poured aluminum liquid is filtered by the pocket filter 1033 and enters the insulation furnace 102. Most of the slag in the aluminum liquid remains in the pocket filter 1033. The turntable 1032 rotates the pocket filter 1033 to the top of the waste liquid tank 105, and the spray cooling unit 104 sprays water to cool the slag, and the waste liquid flows into the waste liquid tank 105. The cooled slag can be taken away for recycling.

[0092] Preferably, the base 1031 is provided with an electromagnet 1034 for attracting the turntable 1032, and the turntable 1032 is provided with a vibrator 1035 for vibrating the pocket-shaped filter 1033. After the electromagnet 1034 attracts the turntable 1032, the turntable 1032 can be kept stable during the pouring process of the aluminum liquid to prevent the turntable 1032 from tilting. The setting of the vibrator 1035 can vibrate the pocket-shaped filter 1033 to promote the separation of the aluminum liquid and the slag in the pocket-shaped filter 1033. Due to the setting of the vibrator 1035, the electromagnet 1034 can better play a role in keeping the turntable 1032 stable.

[0093] The base 1031 is designed to be liftable so that the turntable 103 can be adapted to furnaces 101 of different models.

[0094] like Figures 7 to 10 As shown, the die casting machine 2 includes a feeding device 203, which includes a pusher chamber 2031, a pusher rod 2032, a feeding mechanical arm 2033 and a filter screen replacement mechanical arm 2036. One end of the pusher chamber 2031 is open, which serves as a discharge port for aluminum liquid. The other end of the pusher chamber 2031 is open, and the end of the pusher rod 2032 enters the pusher chamber 2031 through the end opening. The top surface of the pusher chamber 2031 is open, which serves as a feed port for aluminum liquid. A feed filter is provided outside the top surface opening of the pusher chamber 2031. After the aluminum liquid is filtered by the feed filter, it enters the pusher chamber 2031. A soup spoon (existing technology, not shown in the figure) is provided on the feeding mechanical arm 2033. The feeding mechanical arm 2033 controls the soup spoon to pour the aluminum liquid in the furnace system 1 into the pusher chamber 2031.

[0095] The feed filter part includes an outer cylinder 2034 and an inner cylinder 2035. The upper and lower ends of the outer cylinder 2034 are open and hollow. The opening diameters of the two ends of the outer cylinder 2034 are larger than the top opening diameter of the pushing cavity 2031. The lower part of the outer cylinder 2034 is fixed outside the top opening of the pushing cavity 2031. The inner cylinder 2035 can be just loaded into the hollow part of the outer cylinder 2034. The upper and lower ends of the inner cylinder 2035 are open and hollow, and the upper opening diameter is larger than the lower opening diameter, and the lower opening diameter is equal to the top opening diameter of the push cavity 2031. The lower opening of the inner cylinder 2035 is fixed with a feed filter 2037 located in the hollow part of the inner cylinder 2035. The feed filter 2037 is a truncated structure with a small top and a large bottom. The feed filter 2037 is provided with a ring 2038 exposed from the outer cylinder 2034. The filter replacement mechanical arm 2036 grabs the ring 2038 to disassemble and assemble the feed filter 2037. In addition, in order to prevent aluminum liquid from splashing, the outer cylinder 2034 and the inner cylinder 2035 have a certain height, which must be at least higher than the height of the push cavity 2031.

[0096] The use process of the feeding device 203 includes: the inner cylinder 2035 is installed in the outer cylinder 2034, the feeding mechanical arm 2033 scoops up the aluminum liquid in the holding furnace 102 with a spoon and pours it into the inner cylinder 2035, the aluminum liquid poured into the inner cylinder 2035 is filtered by the feeding filter 2037 and enters the pushing cavity 2031, the slag in the aluminum liquid remains in the inner cylinder 2035, and the pushing rod 2032 pushes the aluminum liquid entering the pushing cavity 2031 into between the movable mold 201 and the fixed mold 202. When there is a lot of slag in the inner cylinder 2035, the filter replacement mechanical arm 2036 grabs the lifting ring 2038, lifts and removes the inner cylinder 2035, cleans the feeding filter 2037, and then installs it in the outer cylinder 2034.

[0097] When installing the inner cylinder 2035, if the outer wall of the inner cylinder 2035 and the inner wall of the outer cylinder 2034 are both straight arms, when the inner cylinder 2035 tilts during the falling process, the inner cylinder 2035 will get stuck, resulting in incomplete installation. To solve this defect, the inner diameter of the hollow part of the outer cylinder 2034 gradually decreases from the top to the bottom, forming an inverted truncated cone cavity, and the outer diameter of the inner cylinder 2035 gradually decreases from the top to the bottom, forming an inverted truncated cone shape. With this design, the inner cylinder 2035 can be guided along the inner wall of the outer cylinder 2034 during the falling process to avoid the occurrence of the stuck phenomenon.

[0098] Preferably, the portion of the push rod 2032 entering the push cavity 2031 is provided with a built-in cooling water channel 2039, and the cooling water channel 2039 forms a cooling water inlet and a cooling water outlet at the side wall of the push rod 2032. A cooling circulation pipeline is set inside the push rod 2032 to appropriately reduce the temperature of the boiling metal liquid and prevent the die casting from hollowing due to the boiling of the metal liquid. Of course, the temperature of the cooling water here should be appropriate and the temperature of the aluminum liquid should not be excessively reduced to ensure the quality of the die casting.

[0099] like Figures 10 to 12 As shown, the die-casting machine 2 includes a frame 204, a movable mold 201 and a fixed mold 202. A cooling and lubricating device 205 is provided on the frame 204. The cooling and lubricating device 205 includes a cooling and lubricating rotating unit 2051, a cooling and lubricating lifting unit 2052 and a cooling and lubricating seat 2053. The cooling and lubricating rotating unit 2051 is fixed on the frame 204, and the cooling and lubricating lifting unit 2052 is fixed at its rotating end. The cooling and lubricating lifting unit 2052 is fixed at its lifting end to the cooling and lubricating seat 2053. After the movable mold 201 and the fixed mold 202 are separated, the cooling and lubricating seat 2053 can be lowered into between the two. A cooling water nozzle 2054 and an air blowing port 2056 are provided on one side of the cooling and lubrication seat 2053, and a lubricant nozzle 2055 and an air blowing port 2056 are provided on the opposite side. A cooling water pipeline, a lubricating liquid pipeline and an air duct are provided inside the cooling and lubricating seat 2053. The cooling water pipeline is used to supply external cooling water to the cooling water nozzle 2054, the lubricating liquid pipeline is used to supply external lubricating liquid to the lubricant nozzle 2055, and the air duct is used to supply wind generated by an external fan to the air blowing port 2056.

[0100] The bottom surface of the cooling and lubrication seat 2053 is provided with two liquid receiving trays 2057 respectively located below the cooling water nozzle 2054 and the lubricant nozzle 2055. The outer side of the liquid receiving tray 2057 just fits against the side wall of the movable mold 201 or the side wall of the fixed mold 202 after separation. The cooling and lubrication seat 2053 is provided with a cooling water recovery channel and a lubricating liquid recovery channel. The bottom surface of the liquid receiving tray 2057 is an inclined surface inclined toward the cooling and lubricating seat 2053, which is used to guide the cooling water in the tray into the cooling water recovery channel and guide the lubricating liquid in the tray into the lubricating liquid recovery channel.

[0101] The use process of the cooling and lubricating device 205 is as follows:

[0102] When die casting is completed, the movable mold 201 and the fixed mold 202 are opened, and the casting is removed, the cooling and lubricating lifting unit 2052 drives the cooling and lubricating seat 2053 to descend between the movable mold 201 and the fixed mold 202. At this time, the cooling water nozzle 2054 is aimed at the movable mold 201, and the lubricant nozzle 2055 is aimed at the fixed mold 202. The cooling water nozzle 2054 sprays cooling water to cool the movable mold 201. The sprayed cooling water is recovered and guided by the liquid receiving plate 2057 and enters the cooling water recovery flow channel;

[0103] After the movable mold 201 is cooled, the cooling and lubricating rotating unit 2051 drives the cooling and lubricating seat 2053 to rotate, so that the cooling water nozzle 2054 is aimed at the fixed mold 202, and the lubricant nozzle 2055 is aimed at the movable mold 201. At this time, the blowing port 2056 on the side of the movable mold 201 blows air to air-dry the movable mold 201. After air-drying, the lubricating liquid is sprayed to lubricate the movable mold 201, and the liquid receiving plate 2057 below recovers the lubricating liquid to the lubricating liquid recovery flow channel; at this time, the cooling water nozzle 2054 on the side of the fixed mold 202 sprays cooling water to cool the fixed mold 202, and the sprayed cooling water is recovered and guided by the liquid receiving plate 2057 and enters the cooling water recovery flow channel;

[0104] After the fixed mold 202 is cooled and the movable mold 201 is lubricated, the cooling and lubricating rotating unit 2051 drives the cooling and lubricating seat 2053 to rotate, so that the cooling water nozzle 2054 is aimed at the movable mold 201, and the lubricating liquid nozzle is aimed at the fixed mold 202. At this time, the blowing port 2056 on the side of the fixed mold 202 blows air to air-dry the fixed mold 202. After air-drying, the lubricating liquid is sprayed to lubricate the fixed mold 202, and the liquid receiving tray 2057 below recovers the lubricating liquid to the lubricating liquid recovery flow channel;

[0105] After the fixed mold 202 is lubricated, the cooling and lubricating lifting unit 2052 drives the cooling and lubricating seat 2053 to rise, completing the cooling and lubricating process.

[0106] Although a liquid receiving pan 2057 is provided at the bottom of the cooling and lubricating seat 2053, it is inevitable that lubricating liquid and cooling water will still accumulate on the bottom surface of the die casting machine 2 between the movable mold 201 and the fixed mold 202. Fig.13 As shown, a waste liquid tank and a waste liquid discharge pipeline 2058 are provided on the bottom surface of the die-casting machine 2 between the movable mold 201 and the fixed mold 202 for discharging unrecovered lubricating liquid and cooling water.

[0107] like Fig.14 and Fig.15As shown, the cooling device 3 includes a transfer robot arm 301, a cooling loading conveyor belt 302, N cooling water pools 303, a cooling unloading conveyor belt 304, a cooling air drying unit 305 and a cooling truss robot arm 306. The transfer robot arm 301 is used to remove the casting from the die casting machine 2 and transfer it to the cooling loading conveyor belt 302. The cooling loading conveyor belt 302 is used to move the casting to the cooling water pool 303 side. The N cooling water pools 303 are arranged in a straight line, and each cooling water pool 303 is provided with a temperature sensor 307, a drug concentration sensor 308 and a heating device 309. The cooling water pool 303 is connected to a circulation pipeline, and a filter 310, a water supply pipe 311 and a drug adding pipe 312 are installed on the circulation pipeline; the temperature sensor 307 is used to monitor the water temperature of the cooling water pool 303 in real time, and the drug concentration sensor 308 is used to monitor the drug concentration of the cooling water pool 303 in real time. The water in the cooling water pool 303 is filtered out of impurities through the filter 310, the water is supplemented by the water supply pipe 311, the drug concentration is supplemented by the drug adding pipe 312, and the heating device 309 is used to heat the water pool so that the water pool temperature is constant at the set value. The cooling unloading conveyor belt 304 is used to move the castings to the side of the edge removal device. The cooling unloading conveyor belt 304 is a mesh belt, and a water receiving tray and a drain pipe are provided below. The castings coming out of the cooling water pool 303 have a lot of water remaining on the castings. The residual water is left from the castings, flows into the water receiving tray through the mesh on the conveyor belt, and is discharged through the drain pipe. The cooling air-drying unit 305 is located above the cooling unloading conveyor belt 304, and is used to air-dry the castings on the cooling unloading conveyor belt 304. The cooling truss robot arm 306 can be vertically lifted and moved along the arrangement direction of the cooling water pools 303, and is used to transfer the castings on the cooling loading conveyor belt 302 to the cooling water pools 303, and move the castings from the previous cooling water pool 303 to the next cooling water pool 303, and finally transfer the castings from the cooling water pool 303 to the cooling unloading conveyor belt 304.

[0108] For cooling of die castings, multiple cooling water pools 303 are provided, and the temperature setting of each cooling water pool 303 is different. The temperature setting needs to conform to the temperature change curve of the casting material, which can ensure that the die castings maintain the ideal microstructure and physical properties during the cooling process, and effectively avoid the occurrence of problems such as deformation and cracks. The temperature setting process of each cooling water pool 303 is as follows:

[0109] The water temperature Ti of the i-th cooling water pool 303 is determined. The water temperature Ti is calculated by the following formula:

[0110] Ti=a*T env +(T0-T env ) -k(i*Δt) +b;

[0111] Among them, a is the proportional adjustment coefficient, which is a constant; b is the offset adjustment coefficient, which is a constant. By introducing the adjustment coefficient, the actual temperature change curve of the casting can be fitted more accurately;

[0112] T0 is the initial temperature of the casting before cooling; T env is the ambient temperature; e is the base of the natural logarithm, approximately equal to 2.71828; k is the thermal conductivity of the casting;

[0113] t is time, Δt = t total / N,t total represents the total cooling time, t total =-1 / k*ln((T f -T env ) / (T0-T env ));T f It is the final temperature of the casting after cooling.

[0114] After the casting is cooled and outputted in the cooling device 3, it is manually deburred in the knocking and deburring device, and then manually polished in the grinding device 4. The knocking and deburring device of this embodiment is implemented using an existing device, but for the grinding device 4, in order to achieve the processing of the debris generated by grinding, the applicant has developed a new structure, such as Figures 16 to 21 shown.

[0115] The grinding device 4 includes a grinding chamber 401, a grinding belt assembly 402, a grinding drive unit 403, a water guide plate 404, a water tank 405, a water pump 406, a return channel 407, a waste chip tank 408, a guard plate 409 and a clean water tank 410. The water guide plate 404 is placed vertically, and its upper part is a vertical plate extending to the top of the grinding chamber 401, and its lower part is a horizontal plate extending to the bottom of the grinding chamber 401, and its middle part is an arc surface, and a return hole 411 is opened on the arc surface. The grinding belt assembly 402 is installed in the grinding chamber 401 and driven by the grinding drive unit 403. The grinding belt assembly 402 is located at the front side of the water guide plate 404. The waste chip trough 408 is located at the rear side of the water guide plate 404, and the two ends of the return channel 407 are connected to the return hole 411 and the waste chip trough 408 respectively. The side of the waste chip trough 408 is provided with a detachable gate plate 412 and a filter plate 413, and the clean water trough 410 is adjacent to the filter plate 413 side of the waste chip trough 408. The water tank 405 is installed on the top of the water guide plate 404, and the water outlet of the water tank 405 is set at the front side of the water guide plate 404. The water pump 406 is installed in the clean water trough 410, and the water outlet of the water pump 406 extends to the water tank 405 through a pipeline.

[0116] The use process of the grinding device 4 is as follows:

[0117] Workers grind and polish the cooled and air-dried castings on the grinding belt assembly 402. The debris generated during the grinding process accumulates at the bottom of the grinding chamber 401, that is, on the horizontal plate below the water guide plate 404. The water in the water tank 405 falls along the water guide plate 404 through the water outlet 414 of the water tank, and the accumulated debris is rushed into the reflux hole 411. The water carrying the debris flows through the reflux hole 411 and the reflux channel 407 into the waste chip trough 408. The water in the waste chip trough 408 is filtered by the filter plate 413 and then enters the clean water trough 410. The water in the clean water trough 410 is lifted by the water pump 406 and then returns to the water tank 405 (the water level in the water tank 405 needs to be replenished according to the actual water use situation. A water replenishment pipe 311 and a water level sensor can be set for automatic replenishment). When a lot of waste chips are accumulated in the waste chip groove 408, the gate plate 412 is pulled upward to clean out the waste chips; when the filtering effect of the filter plate 413 is not good, the filter plate 413 can be removed for cleaning and replacement.

[0118] Preferably, the guard plate 409 is installed on the outside of the grinding belt assembly 402 to block sparks flying outward during grinding.

[0119] like Figure 22 to Figure 28 As shown, the vibration grinding device 5 includes a feeding conveyor belt 501 for cleaning, a cleaning tank 503, a truss mechanical arm 504 for cleaning, a feeding conveyor belt 502 for cleaning, a drying unit 505 for cleaning, a vibration base 506, and an annular grinding tank 507 installed above the vibration base 506. A discharge port is provided in the tangent direction of the annular grinding tank 507, and a section of arc-shaped mesh plate 508 is provided on the top surface of the grinding tank 507. One end of the mesh plate 508 is connected to the tangential discharge port, and the other end is provided with a detachable and inclined mesh climbing plate 509. When discharging, one end of the mesh climbing plate 509 is connected to the other end of the mesh plate 508, and the other end of the mesh climbing plate 509 is connected to the bottom surface of the grinding tank 507; when grinding, the mesh climbing plate 509 moves out of the grinding tank 507; the mesh aperture of the mesh plate 508 and the mesh climbing plate 509 is larger than the particle size of the grinding medium, but smaller than the size of the casting. One end of the cleaning feeding conveyor belt 501 is connected to the tangential discharge port of the grinding tank 507, and the other end is connected to one end of the cleaning pool 503. The cleaning unloading conveyor belt 502 is provided at the other end of the cleaning pool 503. The cleaning unloading conveyor belt 502 is a mesh belt, and a water receiving tray and a drain pipe are provided below. The cleaning air drying unit 505 is provided above the cleaning unloading conveyor belt 502. The cleaning truss mechanical arm 504 can be lifted vertically and moved horizontally, and is used to transport the castings on the cleaning feeding conveyor belt 501 to the cleaning pool, and move the castings in the cleaning pool to the cleaning unloading conveyor belt 502.

[0120] The use process of the vibration grinding device 5 is as follows:

[0121] If the polished casting needs to be polished, the worker throws the casting into the grinding tank 507 filled with grinding media (such as steel balls), and the mesh climbing plate 509 is connected to the other end of the mesh flat plate 508;

[0122] The grinding tank 507 is started to make the surface of the casting bright by vibration and adding brightener;

[0123] After the mesh climbing plate 509 is installed, the grinding tank 507 is started again. The grinding medium passes through the mesh climbing plate 509 during the vibration process and falls from the mesh holes of the mesh climbing plate 509. During the vibration process, the casting climbs up the mesh climbing plate 509 and enters the cleaning loading conveyor belt 501 along the mesh flat plate 508. Later, under the action of the cleaning truss mechanical arm 504, it is cleaned in the clean water tank and then enters the cleaning unloading conveyor belt 502. The residual water on the casting falls through the mesh holes of the conveyor belt, is collected in the water receiving tray and discharged from the drain pipe, and at the same time, the cleaning air drying unit 505 air-dries the cleaned casting.

[0124] The connection between the mesh climbing plate 509 and the mesh flat plate 508 can be installed manually or automatically. The present embodiment adopts the automatic lifting method. The vibration grinding device 5 of the present embodiment includes a climbing plate moving part. The bottom surface of the grinding groove 507 is provided with a guide hole 510. The inner wall of the grinding groove 507 is provided with a guide rail groove 511 between the guide hole 510 and the other end of the mesh flat plate 508. The mesh climbing plate 509 is slidably connected to the guide rail groove 511 and can slide along the guide rail groove 511 and is driven by the climbing plate moving part. The transmission structure of the mesh climbing plate 509 can be realized in the form of a gear and a rack. During grinding, the mesh climbing plate 509 is lowered below the bottom surface of the grinding groove 507; during discharging, the mesh climbing plate 509 overcomes the resistance of the grinding medium and rises to connect with the other end of the mesh flat plate 508.

[0125] like Fig.25 As shown, the bottom surface of the grinding tank 507 is provided with a discharge port 512, and the outer wall of the bottom surface of the grinding tank 507 is slidably connected with a closed blanking plate 513 and a blanking plate moving part, and the blanking plate moving part is used to drive the closed blanking plate 513 to translate. The plate surface of the closed blanking plate 513 is composed of a filter section 5131, a closed section 5132 and an opening section 5133 in the sliding direction. When the filter section 5131 corresponds to the discharge port 512, it is used to filter out the debris in the grinding tank 507. When the closed section 5132 corresponds to the discharge port 512, it is used to block the bottom discharge port 512 of the grinding tank 507. When the opening section 5133 corresponds to the discharge port 512, it is used to tilt out the grinding medium in the grinding tank 507. By setting a closed blanking plate 513, three working states can be realized: closing during grinding, filtering out debris during cleaning, and tilting out the grinding medium when not in operation.

[0126] The above embodiments are only used to explain the concept of the present invention, rather than to limit the protection of the rights of the present invention. Any non-substantial changes to the present invention using this concept shall fall within the protection scope of the present invention.

Claims

1. A die-casting production line, comprising a furnace system, a die-casting machine, a cooling device, a trimming device, a grinding device and a vibration grinding device, characterized in that: The die-casting machine includes a feeding device, which includes a pusher cavity, a pusher rod and a feeding mechanical arm. One end of the pusher cavity is open, serving as a discharge port for aluminum liquid. The other end of the pusher cavity is open, and the end of the pusher rod enters the interior of the pusher cavity through the end opening. The top surface of the pusher cavity is open, serving as a feed port for aluminum liquid. A feed filter is provided outside the top opening of the pushing cavity, and the aluminum liquid enters the pushing cavity after being filtered by the feed filter; The feeding mechanical arm is provided with a soup spoon, and the feeding mechanical arm controls the soup spoon to pour the aluminum liquid in the furnace system into the pushing cavity.

2. A die-casting production line as claimed in claim 1, characterized in that: The feed filter unit includes an outer cylinder and an inner cylinder, and the feeding device includes a filter screen replacement mechanical arm. The upper and lower ends of the outer cylinder are open and hollow, and the opening diameters of the two ends of the outer cylinder are larger than the opening diameter of the top surface of the pushing cavity. The lower part of the outer cylinder is fixed outside the top surface opening of the pushing cavity. The inner cylinder can be just loaded into the hollow part of the outer cylinder. The upper and lower ends of the inner cylinder are open and hollow, and the upper opening diameter is larger than the lower opening diameter, and the lower opening diameter is equal to the top opening diameter of the pushing cavity. A feed filter located in the hollow part of the inner cylinder is fixed on the lower opening of the inner cylinder. The feed filter is a truncated cone structure with a small top and a large bottom. A lifting ring is provided on the feed filter to expose the outer cylinder. The filter replacement mechanical arm disassembles and installs the feed filter by grabbing the lifting ring. The inner diameter of the hollow portion of the outer cylinder gradually decreases from the top to the bottom, forming an inverted truncated cone cavity, and the outer diameter of the inner cylinder gradually decreases from the top to the bottom, forming an inverted truncated cone shape.

3. A die casting production line as claimed in claim 1, characterized in that: The portion of the push rod entering the push cavity is provided with a built-in cooling water flow channel, and the cooling water flow channel forms a cooling water inlet and a cooling water outlet at the side wall of the push rod.

4. A die-casting production line as claimed in claim 1, characterized in that: The furnace system includes a tiltable furnace, a holding furnace, a turntable, a spray cooling unit and a waste liquid tank. The turntable includes a liftable base and a turntable located above the base. The holding furnace and the waste liquid tank are located on both sides of the turntable respectively. A pocket-shaped filter that can be located above the holding furnace or the waste liquid tank is installed on the turntable. The furnace is located on one side of the holding furnace. After the furnace is tilted, the molten aluminum liquid is poured into the holding furnace through the pocket-shaped filter. The spray cooling unit is located above the waste liquid tank and is used to cool the pocket-shaped filter. The base is provided with an electromagnet for attracting the turntable; The rotating disk is provided with a vibrator for vibrating the pocket-shaped filter screen.

5. A die-casting production line as claimed in claim 1, characterized in that: The die-casting machine comprises a frame, a movable die and a fixed die, the frame is provided with a cooling and lubricating device, the cooling and lubricating device comprises a cooling and lubricating rotating unit, a cooling and lubricating lifting unit and a cooling and lubricating seat, the cooling and lubricating rotating unit is fixed on the frame, the rotating end of the cooling and lubricating lifting unit is fixed to the cooling and lubricating lifting unit, the lifting end of the cooling and lubricating lifting unit is fixed to the cooling and lubricating seat, after the movable die and the fixed die are separated, the cooling and lubricating seat can be lowered into between the two; A cooling water nozzle and an air blowing port are provided on one side of the cooling and lubricating seat, a lubricant nozzle and an air blowing port are provided on the opposite side, and a cooling water pipeline, a lubricating liquid pipeline and an air duct are provided inside the cooling and lubricating seat; The bottom surface of the cooling and lubricating seat is provided with two liquid receiving pans respectively located below the cooling water nozzle and the lubricant nozzle, and the outer side of the liquid receiving pan just fits with the side wall of the movable mold or the side wall of the fixed mold after separation. The cooling and lubricating seat is provided with a cooling water recovery flow channel and a lubricating liquid recovery flow channel. The bottom surface of the liquid receiving pan is an inclined surface inclined toward the cooling and lubricating seat side, which is used to guide the cooling water in the pan into the cooling water recovery flow channel and guide the lubricating liquid in the pan into the lubricating liquid recovery flow channel. A waste liquid tank and a waste liquid discharge pipeline are arranged on the bottom surface of the die-casting machine between the movable die and the fixed die.

6. A die casting production line as claimed in claim 1, characterized in that: The cooling device includes a transfer robot arm, a cooling loading conveyor belt, N cooling water pools, a cooling unloading conveyor belt, a cooling air drying unit and a cooling truss robot arm; The transfer robot arm is used to remove the casting from the die-casting machine and transfer it to the cooling feeding conveyor belt; The cooling feeding conveyor belt is used to move the casting to the cooling water pool side; The N cooling water pools are arranged in a straight line, and each cooling water pool is provided with a temperature sensor, a drug concentration sensor and a heating device. The cooling water pool is connected to a circulation pipeline, and a filter, a water supply pipe and a drug adding pipe are installed on the circulation pipeline; the temperature sensor is used to monitor the water temperature of the cooling water pool in real time, and the drug concentration sensor is used to monitor the drug concentration of the cooling water pool in real time. The water in the cooling water pool is filtered to remove impurities through a filter, and water is replenished through a water supply pipe, and drug concentration is replenished through a drug adding pipe; The cooling unloading conveyor belt is used to move the casting to the side of the edge removal device. The cooling unloading conveyor belt is a mesh belt, and a water receiving pan and a drainage pipe are provided below. The cooling air drying unit is located above the cooling unloading conveyor belt and is used to air dry the castings on the cooling unloading conveyor belt; The cooling truss robot arm can be lifted vertically and moved along the arrangement direction of the cooling water pools, and is used to transfer the castings on the cooling loading conveyor belt to the cooling water pools, and move the castings from the previous cooling water pool to the next cooling water pool, and finally transfer the castings from the cooling water pool to the cooling unloading conveyor belt.

7. A die-casting production line as claimed in claim 1, characterized in that: The grinding device comprises a grinding chamber, a grinding belt assembly, a grinding drive unit, a water guide plate, a water tank, a water pump, a return channel, a waste chip tank, a guard plate and a clean water tank; The water guide plate is placed vertically, the upper part of which is a vertical plate extending to the top of the grinding chamber, and the lower part of which is a horizontal plate extending to the bottom of the grinding chamber, the middle part of which is a curved surface, and a reflux hole is opened on the curved surface; The grinding belt assembly is installed in the grinding chamber and driven by the grinding drive unit. The grinding belt assembly is located at the front side of the water guide plate. The waste chip trough is located at the rear side of the water guide plate, the two ends of the return channel are respectively connected to the return hole and the waste chip trough, and the side of the waste chip trough is provided with a detachable gate plate and a filter plate; The clean water tank is adjacent to the filter plate side of the waste chip tank; The water tank is installed on the top of the water guide plate, the water outlet of the water tank is arranged on the front side of the water guide plate, the water pump is installed in the clean water tank, and the water outlet of the water pump extends to the water tank through a pipeline; The guard plate is installed on the outer side of the grinding belt assembly.

8. A die-casting production line as claimed in claim 1, characterized in that: The vibration grinding device includes a feeding conveyor belt for cleaning, a cleaning tank, a truss mechanical arm for cleaning, a feeding conveyor belt for cleaning, a drying unit for cleaning, a vibration base and an annular grinding tank installed above the vibration base; The annular grinding groove is provided with a discharge port in the tangent direction, and a section of arc-shaped mesh plate is provided on the top surface of the grinding groove, one end of the mesh plate is connected to the discharge port in the tangent direction, and the other end is provided with a detachable and inclined mesh climbing plate; when discharging, one end of the mesh climbing plate is connected to the other end of the mesh plate, and the other end of the mesh climbing plate is connected to the bottom surface of the grinding groove; when grinding, the mesh climbing plate is moved out of the grinding groove; the apertures of the mesh plate and the mesh climbing plate are larger than the particle size of the grinding medium and smaller than the size of the casting; One end of the cleaning feeding conveyor belt is connected to the tangential discharge port of the grinding tank, and the other end is connected to one end of the cleaning tank. The cleaning unloading conveyor belt is arranged at the other end of the cleaning tank. The cleaning unloading conveyor belt is a mesh belt, and a water receiving tray and a drainage pipe are arranged below. The cleaning air drying unit is arranged above the cleaning unloading conveyor belt; The cleaning truss mechanical arm can be lifted vertically and moved horizontally, and is used to convey the castings on the cleaning loading conveyor belt to the cleaning water pool, and move the castings in the cleaning water pool to the cleaning unloading conveyor belt.

9. A die-casting production line as claimed in claim 8, characterized in that: It comprises a climbing plate moving part, the bottom surface of the grinding groove is provided with a guide hole, the inner wall of the grinding groove is provided with a guide rail groove between the guide hole and the other end of the mesh plate, the mesh climbing plate is slidably connected to the guide rail groove and can slide along the guide rail groove, and is driven by the climbing plate moving part; The bottom surface of the grinding trough is provided with a discharge port, and the outer wall of the bottom surface of the grinding trough is slidably connected with a closed blanking plate and a blanking plate moving part, and the plate surface of the closed blanking plate is composed of a filter section, a closed section and an opening section in sequence along the sliding direction. When the filter section corresponds to the discharge port, it is used to filter out debris in the grinding trough, when the closed section corresponds to the discharge port, it is used to block the bottom discharge port of the grinding trough, and when the opening section corresponds to the discharge port, it is used to tilt out the grinding medium in the grinding trough.

10. A cooling process for a die casting production line according to claim 6, characterized in that: The following steps are involved: Determine the water temperature T of the i-th cooling pool i , the water temperature T i Calculated by the following formula: T i =a*T env +(T0-T env )e -k(i*Δt) +b; Where a is the proportional adjustment coefficient, which is a constant; b is the offset adjustment coefficient, which is a constant; T0 is the initial temperature of the casting before cooling; T env is the ambient temperature; e is the base of the natural logarithm, approximately equal to 2.71828; k is the thermal conductivity of the casting; t is time, Δt = t total / N,t total represents the total cooling time, t total =-1 / k*ln((T f -T env ) / (T0-T env ));T f It is the final temperature of the casting after cooling.

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