Feeding device for die-casting production line

Abstract

The feeding device comprises a pushing cavity, a pushing rod and a feeding mechanical arm, one end of the pushing cavity is open and serves as a discharging port of molten aluminum, the other end of the pushing cavity is open, the end of the pushing rod enters the pushing cavity through the opening in the end, the top face of the pushing cavity is open, and the feeding mechanical arm is arranged on the pushing rod. The feeding hole is used as a molten aluminum feeding hole; the feeding mechanical arm pours molten aluminum into the pushing cavity by controlling the soup ladle; a feeding filtering part is arranged outside an opening in the top face of the material pushing cavity and used for filtering out dregs in a metal solution, meanwhile, due to the fact that the height of the feeding filtering part is far larger than that of the material pushing cavity, when boiling metal liquid is poured into the feeding filtering part, the situation that the metal liquid splashes can be relieved greatly, and in addition, a metal filter screen can be disassembled and assembled through a mechanical arm, and convenience and safety are achieved. And a cooling pipeline is further arranged in the material pushing rod and used for properly reducing the temperature of the boiling metal liquid, and the situation that hollowing of the die casting is generated due to boiling of the metal liquid is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of die casting, especially to a feeding device for die casting production line. BACKGROUND

[0002] A die casting machine is a precision forming equipment for manufacturing metal parts, which forms the required shape and size by injecting molten metal liquid into a mold cavity. Die casting technology is widely used in automobile, aerospace, electronics, home appliances and other industries, because this process can efficiently produce parts with complex structure, high surface quality and high dimensional accuracy.

[0003] As shown in Figure 1 and Figure 2 , it is a schematic diagram of the structure of an aluminum die casting equipment, including a movable die and a fixed die. The forming process of the die casting is as follows: the furnace melts the aluminum ingot, as shown in Figure 3 , the molten aluminum liquid is poured into the pushing cavity, the movable die and the fixed die are closed, and the pushing rod pushes the aluminum liquid in the pushing cavity between the fixed die and the movable die to form the required casting. After the casting is formed, it is taken down, cooled and sent to the edge removal station, and the edge removal process is performed by manual or machine (after the die casting is completed, the edge will have a ring of burrs or flash), and then enters the polishing equipment for polishing and polishing. Finally, according to customer requirements, sand blasting and brightening are performed.

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

[0005] 1. There may be dregs in the metal liquid, which may affect the quality of the casting because the filter of the furnace system is not complete;

[0006] 2. The process of pouring the aluminum liquid into the pushing cavity is realized by a mechanical arm controlling a spoon. During the pouring process, the aluminum liquid will splash out because it is in a high-temperature boiling state and the pushing cavity is relatively shallow, which will affect the production environment and the safety of surrounding workers; 3. If the boiling aluminum liquid is not properly cooled, it will form a hollow drum in the casting, affecting the quality of the casting.

[0007] Based on this, the present case is proposed. UTILITY MODEL CONTENT

[0008] The utility model aims to provide a feeding device for die casting production line to solve the problems in the background art.

[0009] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0010] The utility model provides a feeding device for die casting production line, including pushing chamber, pushing stick and feeding mechanical arm, one end of pushing chamber is open as the discharge port of liquid aluminum, the other end of pushing chamber is open, and the end of pushing stick enters the inside of pushing chamber through the end opening, the top surface of pushing chamber is open as the feed inlet of liquid aluminum, the feeding mechanical arm is equipped with spoon, and feeding mechanical arm pours the liquid aluminum in the furnace system into the inside of pushing chamber through controlling spoon, the top surface opening outside of pushing chamber is equipped with feed filter part, and the liquid aluminum enters the inside of pushing chamber after filtering through feed filter part.

[0011] Further, the feed filter part includes an outer cylinder and an inner cylinder, the outer cylinder is open at both upper and lower ends and hollow, the opening diameter of the two ends of the outer cylinder is larger than the opening diameter of the top surface of the pushing chamber, and the lower part of the outer cylinder is fixed outside the top surface opening of the pushing chamber.

[0012] The inner cylinder is just fitted into the hollow part of the outer cylinder, the inner cylinder is open at both upper and lower ends and hollow, the opening diameter of the upper end is larger than that of the lower end, and the opening diameter of the lower end is equal to the opening diameter of the top surface of the pushing chamber, a feeding filter screen is fixed on the lower end opening of the inner cylinder and located in the hollow part of the inner cylinder, and the feeding filter screen is in the form of a circular truncated cone with the upper end smaller than the lower end.

[0013] Further, a filter screen replacement mechanical arm is provided, a lifting ring is exposed outside the outer cylinder on the feeding filter screen, and the filter screen replacement mechanical arm can disassemble and assemble the feeding filter screen by grabbing the lifting ring.

[0014] Further, the inner diameter of the hollow part of the outer cylinder gradually decreases from the top to the bottom and forms an inverted circular truncated cone cavity, and the outer diameter of the inner cylinder gradually decreases from the top to the bottom and forms an inverted circular truncated cone.

[0015] Further, the part of the pushing stick entering the pushing chamber is provided with an internal cooling water channel, and the cooling water channel forms a cooling water inlet and a cooling water outlet at the side wall of the pushing stick.

[0016] The utility model has the advantages that: by setting the feed filter part above the pushing chamber, the dregs in the metal solution can be filtered out, and due to the height of the feed filter part being much greater than the height of the pushing chamber, the splashing of the boiling metal liquid can be greatly alleviated when pouring the metal liquid, in addition, the metal filter screen can be disassembled and assembled by the mechanical hand, which is convenient and safe, and the cooling pipeline is arranged in the pushing stick to appropriately reduce the temperature of the boiling metal liquid and prevent the die casting from being hollow due to the boiling of the metal liquid. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the die casting machine in the prior art;

[0018] Figure 2 It is a front view schematic view of the die casting machine in the prior art; Figure 1 It is a front view schematic view of the die casting machine in the prior art;

[0019] Figure 3 A section of the enlarged schematic view of Figure 1 ;

[0020] Figure 4 A schematic view of the planar arrangement of the die casting production line in the embodiment;

[0021] Figure 5 A schematic view of the arrangement of the furnace system in the embodiment;

[0022] Figure 6 A schematic view of the three-dimensional configuration of the tiltable furnace in the embodiment;

[0023] Figure 7 A schematic view of the configuration of the pusher chamber and the feed filter in the embodiment;

[0024] Figure 8 A schematic view of the assembly of Figure 7 ;

[0025] Figure 9 A schematic view of the arrangement of the cooling water flow channel inside the pusher rod in the embodiment;

[0026] Figure 10 A schematic view of the feed device in the embodiment;

[0027] Figure 11 A schematic view of the installation of the cooling and lubricating device on the die casting machine in the embodiment;

[0028] Figure 12 A schematic view of the configuration of the cooling and lubricating device in the embodiment;

[0029] Figure 13 A schematic view of the enlarged view of Figure 11 ;

[0030] Figure 14 A schematic view of the configuration of the cooling device in the embodiment;

[0031] Figure 15 A schematic view of the configuration of the cooling water pool of the cooling device in the embodiment;

[0032] Figure 16 A schematic view of the configuration of the polishing device in the embodiment; Figure 17 A schematic view of the configuration of the polishing device in the embodiment; Figure 18 A schematic view of the configuration of the polishing device in the embodiment; Figure 19 A schematic view of the configuration of the polishing device in the embodiment;

[0033] Figure 20 A schematic view of the configuration of the vibrating grinding device in the embodiment; Figure 21 A schematic view of the configuration of the vibrating grinding device in the embodiment;

[0034] Figure 22 A schematic view of the configuration of the vibrating grinding device in the embodiment;

[0035] Figure 23 A three-dimensional configuration diagram of the polishing tank in the embodiment;

[0036] Figure 24 A top view configuration diagram of the polishing tank in the embodiment, when the mesh climbing plate is not raised;

[0037] Figure 25 A configuration diagram of the bottom surface closing material falling plate of the polishing tank in the embodiment;

[0038] Figure 26 A Figure 23 A configuration diagram from another perspective;

[0039] Figure 27 A drive structure diagram of the mesh climbing plate in the embodiment;

[0040] Figure 28 A state diagram of the mesh climbing plate in the embodiment when it is raised.

[0041] Label explanation

[0042] 1, furnace system; 101, furnace; 102, holding furnace; 103, rotary table; 1031, liftable base; 1032, rotary disc; 1033, bag-shaped filter screen; 1034, electromagnet; 1035, vibrator; 104, spray cooling unit; 105, waste liquid tank;

[0043] 2, die casting machine; 201, movable 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 screen replacement mechanical arm; 2037, feeding filter screen; 2038, lifting ring; 2039, cooling water flow channel; 204, rack; 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 spray head; 2055, lubricant spray head; 2056, air blowing port; 2057, liquid receiving disc; 2058, waste liquid discharge pipeline;

[0044] 3, cooling device; 301, transfer mechanical arm; 302, cooling upper feeding conveyor belt; 303, cooling water pool; 304, cooling lower discharging conveyor belt; 305, cooling air drying unit; 306, cooling gantry mechanical arm; 307, temperature sensor; 308, drug concentration sensor; 309, heating device; 310, filter; 311, water supplement pipe; 312, drug adding pipe;

[0045] 4. Grinding device; 401. Grinding chamber; 402. Grinding belt assembly; 403. Grinding drive unit; 404. Water inlet plate; 405. Water tank; 406. Water pump; 407. Return channel; 408. Waste chip trough; 409. Protective plate; 410. Clean water tank; 411. Return hole; 412. Gate; 413. Filter plate; 414. Water outlet of the water tank;

[0046] 5. Vibratory grinding device; 501. Feeding conveyor belt for cleaning; 502. Discharging conveyor belt for cleaning; 503. Cleaning tank; 504. Gantry robotic arm for cleaning; 505. Drying unit for cleaning; 506. Vibrating base; 507. Grinding tank; 508. Mesh plate; 509. Mesh ramp plate; 510. Guide hole; 511. Guide rail groove; 512. Discharge port; 513. Enclosed discharge plate; 5131. Filter section; 5132. Enclosed section; 5133. Open section;

[0047] 6. Edge removal device. Detailed Implementation

[0048] The present invention will be further described in detail below with reference to the embodiments. It should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" etc. indicated by the accompanying drawings are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0049] This embodiment proposes a die-casting production line, such as Figure 4 As shown, the process flow includes, in sequence, a furnace system 1, a die-casting machine 2, a cooling device 3, an edge-removing device 6, a grinding device 4, and a vibratory grinding device 5. After the aluminum ingot is melted into molten aluminum by the furnace system 1, it is poured into the die-casting machine 2 for die casting. The cast parts are first cooled, then hammered to remove the edges, and then polished. Finally, according to customer requirements, they undergo a brightening treatment in the vibratory grinding device 5.

[0050] like Figure 5 and Figure 6As shown, the furnace system 1 comprises a pourable furnace 101, a holding furnace 102, a rotary table 103, a spray cooling unit 104 and a waste liquid tank 105, the rotary table 103 comprises a liftable base 1031 and a rotary disc 1032 above the base 1031, the holding furnace 102 and the waste liquid tank 105 are respectively located on two sides of the rotary table 103, a bag-shaped filter screen 1033 above the holding furnace 102 or the waste liquid tank 105 is installed on the rotary disc 1032, the furnace 101 is located on one side of the holding furnace 102, after the furnace 101 is poured, the molten aluminum liquid is poured into the holding furnace 102 through the bag-shaped filter screen 1033, and the spray cooling unit 104 is located above the waste liquid tank 105 and is used for cooling the bag-shaped filter screen 1033.

[0051] The use of the furnace system 1 comprises the following process: a worker puts aluminum ingots into the furnace 101, the furnace 101 melts the aluminum ingots and then pours the aluminum ingots, at this time, the bag-shaped filter screen 1033 is driven by the rotary disc 1032 to be above the holding furnace 102, the aluminum liquid poured out enters the holding furnace 102 after being filtered through the bag-shaped filter screen 1033, most of the dregs in the aluminum liquid are left in the bag-shaped filter screen 1033, the rotary disc 1032 rotates the bag-shaped filter screen 1033 to be above the waste liquid tank 105, the spray cooling unit 104 sprays water to cool the dregs, and the waste liquid flows into the waste liquid tank 105, and the cooled dregs can be taken away for recycling.

[0052] Preferably, the base 1031 is provided with an electromagnet 1034 for attracting the rotary disc 1032, and the rotary disc 1032 is provided with a vibrator 1035 for vibrating the bag-shaped filter screen 1033. After the electromagnet 1034 attracts the rotary disc 1032, the stability of the rotary disc 1032 can be maintained during pouring of the aluminum liquid, so that the rotary disc 1032 is prevented from tilting. The vibration of the bag-shaped filter screen 1033 by the vibrator 1035 can promote the separation of the aluminum liquid and the dregs in the bag-shaped filter screen 1033. Due to the arrangement of the vibrator 1035, the electromagnet 1034 can better maintain the stability of the rotary disc 1032.

[0053] The liftable arrangement of the base 1031 enables the rotary table 103 to adapt to different models of the furnace 101.

[0054] As Figures 7 to 10As shown, the die casting machine 2 comprises a feeding device 203, which comprises a pushing cavity 2031, a pushing rod 2032, a feeding mechanical arm 2033 and a filter screen replacement mechanical arm 2036. One end of the pushing cavity 2031 is open as an outlet for the molten aluminum, the other end of the pushing cavity 2031 is open, the end of the pushing rod 2032 enters the inside of the pushing cavity 2031 through the end opening, and the top surface of the pushing cavity 2031 is open as an inlet for the molten aluminum. An inlet filter is arranged outside the top surface opening of the pushing cavity 2031. After being filtered by the inlet filter, the molten aluminum enters the pushing cavity 2031. The feeding mechanical arm 2033 is provided with a ladle (prior art, not shown in the figure). The feeding mechanical arm 2033 pours the molten aluminum in the furnace system 1 into the pushing cavity 2031 by controlling the ladle.

[0055] The inlet filter comprises an outer cylinder 2034 and an inner cylinder 2035. The upper and lower ends of the outer cylinder 2034 are open and hollow. The diameters of the openings at the two ends of the outer cylinder 2034 are larger than the diameter of the top surface opening of the pushing cavity 2031. The lower part of the outer cylinder 2034 is fixed outside the top surface opening of the pushing cavity 2031. The inner cylinder 2035 can be exactly fitted into the hollow part of the outer cylinder 2034. The upper and lower ends of the inner cylinder 2035 are open and hollow. The diameter of the upper end opening is larger than the diameter of the lower end opening. The diameter of the lower end opening is equal to the diameter of the top surface opening of the pushing cavity 2031. A feeding filter screen 2037 is fixed on the lower end opening of the inner cylinder 2035 in the hollow part of the inner cylinder 2035. The feeding filter screen 2037 is in the form of a circular truncated cone with the upper end smaller than the lower end. A lifting ring 2038 is arranged on the feeding filter screen 2037 to expose the outer cylinder 2034. The filter screen replacement mechanical arm 2036 can disassemble and assemble the feeding filter screen 2037 by grabbing the lifting ring 2038. In addition, in order to prevent the molten aluminum from splashing, the outer cylinder 2034 and the inner cylinder 2035 have a certain height, which is at least higher than the height of the pushing cavity 2031.

[0056] The use process of the feeding device 203 comprises the following steps. The inner cylinder 2035 is installed in the outer cylinder 2034. The feeding mechanical arm 2033 scoops up the molten aluminum in the holding furnace 102 by the ladle and pours it into the inner cylinder 2035. The molten aluminum poured into the inner cylinder 2035 is filtered by the feeding filter screen 2037 and then enters the pushing cavity 2031. The dregs in the molten aluminum are left in the inner cylinder 2035. The pushing rod 2032 pushes the molten aluminum in the pushing cavity 2031 into the space between the movable die 201 and the fixed die 202. When there are too many dregs in the inner cylinder 2035, the filter screen replacement mechanical arm 2036 lifts up the inner cylinder 2035 by grabbing the lifting ring 2038 and disassembles it. After cleaning the feeding filter screen 2037, the inner cylinder 2035 is installed in the outer cylinder 2034 again.

[0057] When the inner cylinder 2035 is installed, if the outer wall of the inner cylinder 2035 and the inner wall of the outer cylinder 2034 are straight arms, when the inner cylinder 2035 is tilted during the falling process, the inner cylinder 2035 will be stuck, resulting in installation not in place. 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 circular table cavity, and the outer diameter of the inner cylinder 2035 gradually decreases from the top to the bottom, forming an inverted circular table. Such design, the inner cylinder 2035 can be guided along the inner wall of the outer cylinder 2034 during the falling process, so as to avoid the phenomenon of being stuck.

[0058] As preferred, the part of the pushing rod 2032 entering the pushing cavity 2031 is provided with an internal cooling water channel 2039, which forms a cooling water inlet and a cooling water outlet at the side wall of the pushing rod 2032. A cooling circulation pipeline is arranged inside the pushing rod 2032 to appropriately reduce the temperature of the boiling metal liquid and prevent the pressure casting from producing air pockets due to boiling of the metal liquid. Of course, the temperature of the cooling water should be appropriate and should not excessively reduce the temperature of the aluminum liquid to ensure the quality of the pressure casting.

[0059] As shown in Figures 10 to 12 The die casting machine 2 includes a frame 204, a movable die 201 and a fixed die 202, the frame 204 is provided with a cooling and lubricating device 205, 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, the rotating end of the cooling and lubricating rotating unit 2051 is fixed with the cooling and lubricating lifting unit 2052, the lifting end of the cooling and lubricating lifting unit 2052 is fixed with the cooling and lubricating seat 2053, and the cooling and lubricating seat 2053 can descend into the space between the movable die 201 and the fixed die 202 after the movable die 201 and the fixed die 202 are separated. One side of the cooling and lubricating seat 2053 is provided with a cooling water nozzle 2054 and a blowing port 2056, and the opposite side is provided with a lubricant nozzle 2055 and a blowing port 2056. The inside of the cooling and lubricating seat 2053 is provided with a cooling water pipeline, a lubricating liquid pipeline and an air duct, 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 air generated by an external fan to the blowing port 2056.

[0060] The bottom surface of the cooling and lubricating seat 2053 is provided with two liquid receiving discs 2057 located below the cooling water nozzle 2054 and the lubricant nozzle 2055 respectively, the outer side of the liquid receiving disc 2057 is in close contact with the side wall of the movable die 201 or the side wall of the fixed die 202 after separation, the cooling and lubricating seat 2053 is provided with a cooling water recovery channel and a lubricating liquid recovery channel, and the bottom surface of the liquid receiving disc 2057 is an inclined surface inclined to the side of the cooling and lubricating seat 2053, which is used to guide the cooling water in the disc into the cooling water recovery channel and guide the lubricating liquid in the disc into the lubricating liquid recovery channel.

[0061] The use of the cooling and lubricating device 205 is as follows:

[0062] When the die casting is completed, the movable die 201 and the fixed die 202 are opened, and the castings are taken down, the cooling and lubricating lifting unit 2052 drives the cooling and lubricating seat 2053 to descend between the movable die 201 and the fixed die 202, at this time the cooling water spray head 2054 is aligned with the movable die 201, the lubricant spray head 2055 is aligned with the fixed die 202, the cooling water spray head 2054 sprays cooling water to cool the movable die 201, the sprayed cooling water is recovered and guided through the liquid receiving tray 2057, and then enters the cooling water recovery flow channel;

[0063] After the movable die 201 is cooled, the cooling and lubricating rotating unit 2051 drives the cooling and lubricating seat 2053 to rotate, so that the cooling water spray head 2054 is aligned with the fixed die 202, and the lubricant spray head 2055 is aligned with the movable die 201, at this time the air outlet 2056 on the side of the movable die 201 blows air to dry the movable die 201, after drying, the movable die 201 is sprayed with lubricating liquid for lubrication, and the liquid receiving tray 2057 below recovers the lubricating liquid to the lubricating liquid recovery flow channel; at this time, the cooling water spray head 2054 on the side of the fixed die 202 sprays cooling water to cool the fixed die 202, the sprayed cooling water is recovered and guided through the liquid receiving tray 2057, and then enters the cooling water recovery flow channel;

[0064] After the movable die 201 is lubricated, the cooling and lubricating rotating unit 2051 drives the cooling and lubricating seat 2053 to rotate, so that the cooling water spray head 2054 is aligned with the movable die 201, and the lubricating liquid spray head is aligned with the fixed die 202, at this time the air outlet 2056 on the side of the fixed die 202 blows air to dry the fixed die 202, after drying, the fixed die 202 is sprayed with lubricating liquid for lubrication, and the liquid receiving tray 2057 below recovers the lubricating liquid to the lubricating liquid recovery flow channel;

[0065] After the fixed die 202 is lubricated, the cooling and lubricating lifting unit 2052 drives the cooling and lubricating seat 2053 to ascend, and the cooling and lubricating process is completed.

[0066] Although the liquid receiving tray 2057 is arranged at the bottom of the cooling and lubricating seat 2053, lubricating liquid and cooling water will inevitably accumulate on the bottom surface of the die casting machine 2 between the movable die 201 and the fixed die 202. Figure 13 As shown in the drawings, the die casting machine 2 is provided with a waste liquid tank and a waste liquid discharge pipeline 2058 on the bottom surface between the movable die 201 and the fixed die 202, for discharging unrecycled lubricating liquid and cooling water.

[0067] As shown in the drawings, Figure 14 and Figure 15As shown, the cooling device 3 comprises a transfer robot 301, a cooling feeding conveyor 302, N cooling water pools 303, a cooling discharging conveyor 304, a cooling air-drying unit 305 and a cooling gantry robot 306. The transfer robot 301 is used to take the castings from the die casting machine 2 and transfer them to the cooling feeding conveyor 302. The cooling feeding conveyor 302 is used to move the castings to the side of the cooling water pools 303. 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 with a circulating pipeline, and the circulating pipeline is provided with a filter 310, a water supplement pipe 311 and a drug supplement pipe 312. 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 by the filter 310, supplemented by the water supplement pipe 311, supplemented by the drug supplement pipe 312, and heated by the heating device 309 to keep the water temperature of the cooling water pool constant at a set value. The cooling discharging conveyor 304 is used to move the castings to the side of the edge removing device, and the cooling discharging conveyor 304 is a mesh belt provided with a water collecting tray and a drain pipe below. The castings coming out of the cooling water pool 303 have a lot of water remaining on them, and the remaining water flows into the water collecting tray through the mesh of the conveyor belt and is discharged through the drain pipe. The cooling air-drying unit 305 is located above the cooling discharging conveyor 304 and is used to air-dry the castings on the cooling discharging conveyor 304. The cooling gantry robot 306 can vertically lift and move along the arrangement direction of the cooling water pools 303, and is used to transfer the castings on the cooling feeding conveyor 302 to the cooling water pools 303, 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 discharging conveyor 304.

[0068] For the cooling of the die castings, a plurality of cooling water pools 303 are provided, and the temperature of each cooling water pool 303 is set differently. The temperature setting needs to meet 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, effectively avoiding the occurrence of problems such as deformation and cracking. The temperature setting process of each cooling water pool 303 is as follows:

[0069] The water temperature Ti of the i-th cooling water pool 303 is calculated by the following formula:

[0070] Ti = a * T env + (T0-T env )e -k(i*Δt) +b;

[0071] Wherein, a is a proportional adjustment coefficient, which is a constant; b is an offset adjustment coefficient, which is a constant. By introducing the adjustment coefficients, the actual temperature change curve of the casting can be more accurately fitted;

[0072] T0 is the initial temperature of the casting before cooling; T env is the ambient temperature; e is the base of the natural logarithm, which is approximately equal to 2.71828; k is the thermal conductivity of the casting;

[0073] 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 is the final temperature of the casting after cooling.

[0074] After the casting is cooled and output in the cooling device 3, manual edge removal is performed in the knocking edge removal device, and then polishing is performed in the polishing device 4. The knocking edge removal device in the embodiment is realized by using an existing device, but for the polishing device 4, in order to realize the processing of the debris generated by polishing, the applicant has developed a new structure, as shown in Figures 16 to 21 .

[0075] The polishing device 4 includes a polishing cavity 401, a polishing belt assembly 402, a polishing drive part 403, a water guide plate 404, a water tank 405, a water pump 406, a backflow channel 407, a debris tank 408, a guard plate 409, and a clean water tank 410. The water guide plate 404 is placed vertically, the upper part thereof is a vertical plate extending to the top of the polishing cavity 401, the lower part thereof is a horizontal plate extending to the bottom of the polishing cavity 401, the middle part thereof is an arc surface, and the arc surface is provided with a backflow hole 411. The polishing belt assembly 402 is installed in the polishing cavity 401 and is driven to operate by the polishing drive part 403, and the polishing belt assembly 402 is located on the front side of the water guide plate 404. The debris tank 408 is located on the rear side of the water guide plate 404, the two ends of the backflow channel 407 are respectively communicated with the backflow hole 411 and the debris tank 408, the side part of the debris tank 408 is provided with a detachable gate plate 412 and a filter plate 413, and the clean water tank 410 is adjacent to the filter plate 413 side of the debris tank 408. The water tank 405 is installed on the top of the water guide plate 404, the water outlet of the water tank 405 is arranged on the front side of the water guide plate 404, the water pump 406 is installed in the clean water tank 410, and the water outlet of the water pump 406 extends to the water tank 405 through a pipeline.

[0076] The use process of the polishing device 4 is as follows:

[0077] The worker polishes the finished casting on the polishing belt assembly 402, and the debris generated during polishing accumulates at the bottom of the polishing cavity 401, that is, the horizontal plate under the deflector 404. The water in the water tank 405 falls along the deflector 404 through the water outlet 414 of the water tank, and the accumulated debris is flushed into the backflow hole 411. The water carrying the debris flows through the backflow hole 411, the backflow channel 407, and enters the waste tank 408. The water in the waste tank 408 is filtered through the filter plate 413 and then enters the clean water tank 410. The water in the clean water tank 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 consumption, and a water replenishment pipe 311 and a water level sensor can be provided for automatic replenishment. When the waste tank 408 accumulates a large amount of waste, the gate plate 412 is pulled up to clean out the waste. When the filter plate 413 does not filter well, it can be removed for cleaning and replacement.

[0078] As a preferred, the guard plate 409 is installed on the outside of the polishing belt assembly 402 to block sparks flying outward during polishing.

[0079] As shown in Figures 22 to 28 The vibration grinding device 5 includes a cleaning feeding conveyor belt 501, a cleaning pool 503, a cleaning gantry robot 504, a cleaning discharging conveyor belt 502, a cleaning air drying unit 505, a vibration base 506, and an annular grinding groove 507 installed above the vibration base 506. The tangential direction of the annular grinding groove 507 is provided with a discharge port, and the top surface of the grinding groove 507 is provided with an arc-shaped mesh flat plate 508. One end of the mesh flat plate 508 connects the tangential discharge port, and the other end is provided with a separable and inclined mesh climbing plate 509. During discharging, one end of the mesh climbing plate 509 connects the other end of the mesh flat plate 508, and the other end of the mesh climbing plate 509 connects the bottom surface of the grinding groove 507. During grinding, the mesh climbing plate 509 moves out of the grinding groove 507. The mesh diameter of the mesh flat 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 connects the tangential discharge port of the grinding groove 507, and the other end connects one end of the cleaning pool 503. The cleaning discharging conveyor belt 502 is provided at the other end of the cleaning pool 503. The cleaning discharging conveyor belt 502 is a mesh belt and is provided with a water receiving tray and a drain pipe below. The cleaning air drying unit 505 is provided above the cleaning discharging conveyor belt 502. The cleaning gantry robot 504 can vertically lift and horizontally move, and is used to convey the casting on the cleaning feeding conveyor belt 501 into the cleaning pool, and move the casting in the cleaning pool to the cleaning discharging conveyor belt 502.

[0080] The use process of the vibration grinding device 5 is as follows:

[0081] The finished castings are polished, and if they need to be polished, the workers throw the castings into the grinding tank 507 filled with grinding medium (such as steel balls), at this time the mesh climbing plate 509 is connected to the other end of the mesh flat plate 508;

[0082] The grinding tank 507 is started, and the surface of the casting becomes bright through vibration and the addition of polishing agents;

[0083] After the mesh climbing plate 509 is installed, the grinding tank 507 is started again, and the grinding medium passes through the mesh climbing plate 509 in the vibration process and falls from the mesh of the mesh climbing plate 509, the casting climbs the mesh climbing plate 509 and enters the cleaning upper conveying belt 501 along the mesh flat plate 508 in the vibration process, and then is cleaned in the water pool under the action of the cleaning gantry robot 504 and enters the cleaning lower conveying belt 502, the residual water on the casting falls through the mesh of the conveying belt and is collected in the water collecting tray and discharged through the drain pipe, and the cleaned casting is air dried by the cleaning air drying unit 505.

[0084] The connection between the mesh climbing plate 509 and the mesh flat plate 508 can be manually installed or automatically lifted, and in this embodiment, the automatic lifting mode is adopted. The vibration grinding device 5 of this embodiment comprises a climbing plate moving part, the bottom surface of the grinding tank 507 is provided with a guide hole 510, the inner wall of the grinding tank 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 slidingly 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, and the transmission structure of the mesh climbing plate 509 can adopt the gear and rack mode. During grinding, the mesh climbing plate 509 is lowered below the bottom surface of the grinding tank 507; during discharging, the mesh climbing plate 509 is raised to connect with the other end of the mesh flat plate 508 by overcoming the resistance of the grinding medium.

[0085] As shown in Figure 25 The bottom surface of the grinding tank 507 is provided with a discharge port 512, and the bottom surface of the grinding tank 507 is slidingly connected with a closed discharge plate 513 and a discharge plate moving part, and the discharge plate moving part is used to drive the closed discharge plate 513 to translate. The plate surface of the closed discharge plate 513 is sequentially provided with a filter screen section 5131, a closed section 5132 and an open section 5133 along the sliding direction, the filter screen section 5131 corresponds to the discharge port 512 and is used to filter out the debris in the grinding tank 507, the closed section 5132 corresponds to the discharge port 512 and is used to block the bottom surface discharge port 512 of the grinding tank 507, and the open section 5133 corresponds to the discharge port 512 and is used to tilt the grinding medium in the grinding tank 507. By providing a closed discharge plate 513, three working states of closing during grinding, filtering out debris during cleaning and tilting out grinding medium during non-operation can be realized.

[0086] The above examples are only used to explain the concept of the present application, and are not intended to limit the scope of protection of the present application. Any non-essential changes made to the present application using this concept shall fall within the scope of protection of the present application.

Claims

1. A feeding device for die casting production line, comprising a pushing cavity, a pushing rod and a feeding mechanical arm, one end of the pushing cavity is open as an outlet for molten aluminum, the other end of the pushing cavity is open, the end of the pushing rod enters the inside of the pushing cavity through the open end, the top surface of the pushing cavity is open as an inlet for molten aluminum; the feeding mechanical arm is provided with a ladle, and the feeding mechanical arm pours the molten aluminum in the furnace system into the pushing cavity through the ladle. characterized in that An inlet filter is arranged outside the open top surface of the pushing cavity, and the molten aluminum is filtered through the inlet filter before entering the pushing cavity.

2. A feed apparatus for a die casting line as claimed in claim 1, characterized in that, The inlet filter comprises an outer cylinder and an inner cylinder, the upper and lower ends of the outer cylinder are open and hollow, the diameters of the openings at the two ends of the outer cylinder are larger than the diameter of the open top surface of the pushing cavity, and the lower part of the outer cylinder is fixed outside the open top surface of the pushing cavity. The inner cylinder can be exactly fitted into the hollow part of the outer cylinder, the upper and lower ends of the inner cylinder are open and hollow, the diameter of the upper end opening is larger than that of the lower end opening, and the diameter of the lower end opening is equal to the diameter of the open top surface of the pushing cavity, a feeding filter screen is fixed on the lower end opening of the inner cylinder and located in the hollow part of the inner cylinder, and the feeding filter screen has a circular truncated cone structure with a small upper end and a large lower end.

3. A feed apparatus for a die casting line as claimed in claim 2, characterized in that A filter screen replacement mechanical arm is arranged, the feeding filter screen is provided with a lifting ring exposed outside the outer cylinder, and the filter screen replacement mechanical arm can disassemble and assemble the feeding filter screen by grabbing the lifting ring.

4. A feed apparatus for a die casting line as claimed in claim 3, characterized in that, The inner diameter of the hollow part of the outer cylinder gradually decreases from the top to the bottom, forming an inverted circular truncated cone cavity, and the outer diameter of the inner cylinder gradually decreases from the top to the bottom, forming an inverted circular truncated cone.

5. A feed apparatus for a die casting line as defined in claim 1, wherein The part of the pushing rod entering the pushing cavity is provided with an internal cooling water channel, and the cooling water channel forms a cooling water inlet and a cooling water outlet at the side wall of the pushing rod.

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