Die-casting machine for die-casting production line

Abstract

The utility model relates to a die-casting machine for a die-casting production line, which comprises a die-casting machine body and a smelting furnace system, and the die-casting machine body comprises a material pushing cavity, a material pushing rod and a material supply mechanical arm; 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 smelting furnace system comprises a smelting furnace, a heat preservation furnace, a rotary disc, a spray cooling unit and a waste liquid box, the heat preservation furnace and the waste liquid box are located on the two sides of the rotary disc respectively, a pocket-shaped filter screen is installed on the rotary disc, molten aluminum in the smelting furnace is poured into the heat preservation furnace through the pocket-shaped filter screen, and the spray cooling unit is located above the waste liquid box and used for cooling the pocket-shaped filter screen. The pocket-shaped filter screen is used for filtering out dregs in the metal liquid, and meanwhile, the filtered dregs are rotated to the other side to be cooled, so that the dregs are recycled; the feeding filtering part can filter out dregs in the metal solution, and meanwhile, due to the fact that the height of the feeding filtering part is far larger than that of the material pushing cavity, the situation that the metal solution splashes can be relieved.

Description

Technical Field

[0001] This utility model relates to the field of die casting, and in particular to a die casting machine for a die casting production line. Background Technology

[0002] A die-casting machine is a precision forming device used to manufacture metal parts. It shapes and sizes by injecting molten metal into a mold cavity. Die-casting technology is widely used in many industries, including automotive, 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 diagram shown illustrates the structure of an aluminum die-casting machine, including a moving mold and a fixed mold. The die-casting process is as follows: The furnace melts aluminum ingots, such as... Figure 3 As shown, molten aluminum is poured into the ejector cavity, the moving mold and the fixed mold close, and at the same time the ejector rod pushes the molten aluminum in the ejector cavity between the fixed mold and the moving mold to form the required casting. After the casting is formed, it is removed, cooled and sent to the trimming station, where the trimming process is carried out manually or by machine (after the die casting is completed, the edge will have a ring of burrs or flash). After trimming, it enters the grinding equipment for grinding and polishing. Finally, according to the customer's requirements, it is polished by vibrating sand.

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

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

[0006] 2. The process of pouring molten aluminum into the pusher chamber is achieved by a ladle controlled by a robotic arm. During the pouring process, because the molten aluminum is in a high-temperature boiling state and the pusher chamber is relatively shallow, the molten aluminum will splash out, affecting the production environment and the safety of surrounding workers. At the same time, if the boiling molten aluminum is not properly cooled, it will form voids in the casting, affecting the quality of the casting. In addition, as mentioned in point 1 above, there will be slag in the molten metal, and the furnace system's filtration is not thorough, which may affect the quality of the casting.

[0007] 3. After die casting is completed, the moving mold and the fixed mold need to be cooled and lubricated in order to carry out the next die casting. Currently, the spraying of lubricant is achieved by a robotic arm, which is effective and inexpensive. However, cooling is achieved by setting up cooling channels inside the mold to achieve internal cooling, but this is very expensive. When changing the mold, cooling channels need to be opened in the new mold, which is a complicated process.

[0008] Therefore, this case is brought. Utility Model Content

[0009] The purpose of this invention is to provide a die-casting production line to solve the problems existing in the background art.

[0010] To achieve the above objectives, the technical solution of this utility model is as follows:

[0011] A die-casting machine for a die-casting production line includes a die-casting machine body and a furnace system. The die-casting machine body includes a pushing chamber, a pushing rod, and a feeding robotic arm. One end of the pushing chamber is open, serving as an outlet for molten aluminum. The other end of the pushing chamber is open, and the end of the pushing rod enters the pushing chamber through this opening. The top surface of the pushing chamber is open, serving as an inlet for molten aluminum. The feeding robotic arm is equipped with a ladle, and the feeding robotic arm controls the ladle to pour molten aluminum from the furnace system into the pushing chamber.

[0012] The top opening of the pushing chamber is provided with a feeding filter section. After the aluminum liquid is filtered by the feeding filter section, it enters the pushing chamber.

[0013] 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 opposite sides of the turntable. A pocket-shaped filter screen is installed on the turntable, which can be positioned above the holding furnace or the waste liquid tank. The furnace is located on one side of the holding furnace. Molten aluminum in the furnace is poured into the holding furnace through the pocket-shaped filter screen. The spray cooling unit is located above the waste liquid tank and is used to cool the pocket-shaped filter screen.

[0014] Furthermore, the feeding filter section includes an outer cylinder and an inner cylinder. The upper and lower ends of the outer cylinder are open and hollow. The opening diameter at both ends of the outer cylinder is larger than the opening diameter at the top surface of the pushing chamber. The lower part of the outer cylinder is fixed outside the opening at the top surface of the pushing chamber.

[0015] The inner cylinder can be inserted into the hollow part of the outer cylinder. The upper and lower ends of the inner cylinder are open 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 located in the hollow part of the inner cylinder is fixed on the lower opening of the inner cylinder. The feeding filter screen has a frustum structure that is smaller at the top and larger at the bottom.

[0016] Furthermore, the die-casting machine body includes a filter screen replacement robotic arm, and the feed filter screen is provided with a lifting ring protruding from the outer cylinder. The filter screen replacement robotic arm removes and installs the feed filter screen by gripping the lifting ring.

[0017] Furthermore, the inner diameter of the hollow part of the outer cylinder gradually decreases from the top to the bottom, forming an inverted frustum cavity, and the outer diameter of the inner cylinder gradually decreases from the top to the bottom, forming an inverted frustum shape.

[0018] Furthermore, the portion of the pusher bar that enters the pusher chamber is provided with a built-in cooling water channel, which forms a cooling water inlet and a cooling water outlet on the side wall of the pusher bar.

[0019] Furthermore, the base is equipped with an electromagnet for attracting the turntable.

[0020] Furthermore, the turntable is equipped with a vibrator for vibrating the pocket-shaped filter screen.

[0021] Furthermore, a cooling and lubrication device is included. The die-casting machine body includes a moving mold and a fixed mold, and the cooling and lubrication device is installed above the die-casting machine body via a frame.

[0022] The cooling and lubrication device includes a cooling and lubrication rotating unit, a cooling and lubrication lifting unit, and a cooling and lubrication seat. The cooling and lubrication rotating unit is fixed on the frame, and the cooling and lubrication lifting unit is fixed at its rotating end. The cooling and lubrication seat is fixed at the lifting end of the cooling and lubrication lifting unit. After the moving mold and the fixed mold are separated, the cooling and lubrication seat can descend and enter between the two.

[0023] The cooling and lubrication seat has a cooling water nozzle and an air blower on one side, and a lubricant nozzle and an air blower on the opposite side. The interior of the cooling and lubrication seat is equipped with cooling water pipes, lubricant pipes, and air ducts.

[0024] Furthermore, the bottom surface of the cooling and lubrication seat is provided with two liquid receiving trays located below the cooling water nozzle and the lubricant nozzle, respectively. The outer side of the liquid receiving tray is exactly in contact with the side wall of the moving mold or the side wall of the fixed mold after separation. The cooling and lubrication seat is provided with a cooling water recovery channel and a lubricant recovery channel. The bottom surface of the liquid receiving tray is an inclined surface that slopes towards the cooling and lubrication seat to guide the cooling water in the tray into the cooling water recovery channel and guide the lubricant in the tray into the lubricant recovery channel.

[0025] Furthermore, the die-casting machine is provided with a waste liquid tank and a waste liquid discharge pipeline on the bottom surface located between the moving mold and the fixed mold.

[0026] The advantages of this utility model are:

[0027] 1. By setting a sludge-like filter screen above the holding furnace, slag in the liquid is filtered out during the pouring of the molten metal. At the same time, the filtered slag is rotated to the other side for cooling, so as to facilitate the recycling of the slag.

[0028] 2. By setting a feed filter section above the pusher chamber, slag in the molten metal can be filtered out. At the same time, since the height of the feed filter section is much greater than that of the pusher chamber, the splashing of molten metal when boiling molten metal is poured in will be greatly reduced. In addition, the metal filter screen can be installed and removed by a robotic arm, which is convenient and safe. This application also sets a cooling pipe inside the pusher bar to appropriately reduce the temperature of the boiling molten metal and prevent the die casting from becoming hollow due to the boiling of molten metal.

[0029] 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 lubricant recovery structure is also set up to reduce costs and increase efficiency. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of a die-casting machine in the prior art;

[0031] Figure 2 for Figure 1 Front view diagram;

[0032] Figure 3 for Figure 1 Enlarged diagram of part A in the diagram;

[0033] Figure 4 This is a schematic diagram of the layout of the die-casting production line in the embodiment;

[0034] Figure 5 This is a schematic diagram of the furnace system layout in the embodiment;

[0035] Figure 6 This is a three-dimensional structural diagram of the tilting furnace in the embodiment;

[0036] Figure 7 This is a schematic diagram of the structure of the pushing chamber and the feeding filter section in the embodiment;

[0037] Figure 8 for Figure 7 A schematic diagram of the completed assembly;

[0038] Figure 9 This is a schematic diagram of the cooling water flow channel arrangement inside the push rod in the embodiment;

[0039] Figure 10 This is a schematic diagram of the feeding device in the embodiment;

[0040] Figure 11 This is a schematic diagram of the installation of the cooling and lubrication device on the die-casting machine in the embodiment;

[0041] Figure 12 This is a schematic diagram of the cooling and lubrication device in the embodiment;

[0042] Figure 13 for Figure 11 Enlarged schematic diagram of part B in the diagram;

[0043] Figure 14 This is a schematic diagram of the cooling device in the embodiment;

[0044] Figure 15 This is a schematic diagram of the cooling water tank of the cooling device in the embodiment.

[0045] Figure 16 , Figure 17 , Figure 18 , Figure 19 These are schematic diagrams of the grinding device from different perspectives in the embodiments;

[0046] Figure 20 and Figure 21 This is a schematic diagram showing the state in which the rear gate and filter plate of the grinding device are lifted in the embodiment;

[0047] Figure 22 This is a schematic diagram of the structure of the vibratory grinding device in the embodiment;

[0048] Figure 23 This is a three-dimensional structural diagram of the grinding tank in the embodiment;

[0049] Figure 24 This is a top view of the grinding tank in the embodiment, where the mesh ramp plate is not raised.

[0050] Figure 25 This is a schematic diagram of the structure of the closed material discharge plate at the bottom of the grinding tank in the embodiment;

[0051] Figure 26 for Figure 23 A schematic diagram of the structure from another perspective;

[0052] Figure 27 This is a schematic diagram of the driving structure of the mesh climbing plate in the embodiment;

[0053] Figure 28 This is a schematic diagram showing the state of the mesh ramp plate when it is raised in the grinding tank of the embodiment.

[0054] Label Explanation

[0055] 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;

[0056] 2. Die-casting machine; 201. Moving mold; 202. Fixed mold; 203. Feeding device; 2031. Pushing chamber; 2032. Pushing rod; 2033. Feeding robotic arm; 2034. Outer cylinder; 2035. Inner cylinder; 2036. Filter screen replacement robotic arm; 2037. Feeding filter screen; 2038. Lifting ring; 2039. Cooling water channel; 204. Frame; 205. Cooling and lubrication device; 2051. Cooling and lubrication rotating unit; 2052. Cooling and lubrication lifting unit; 2053. Cooling and lubrication seat; 2054. Cooling water nozzle; 2055. Lubricant nozzle; 2056. Air outlet; 2057. Liquid receiving tray; 2058. Waste liquid discharge pipeline;

[0057] 3. Cooling device; 301. Transfer robotic arm; 302. Cooling feeding conveyor belt; 303. Cooling water tank; 304. Cooling unloading conveyor belt; 305. Cooling drying unit; 306. Cooling gantry robotic arm; 307. Temperature sensor; 308. Drug concentration sensor; 309. Heating device; 310. Filter; 311. Water supply pipe; 312. Drug dosing pipe;

[0058] 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;

[0059] 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;

[0060] 6. Edge removal device. Detailed Implementation

[0061] 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.

[0062] 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.

[0063] 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 located on opposite sides of the turntable 103. A pocket-shaped filter screen 1033 is installed on the turntable 1032 and can be positioned above the holding furnace 102 or the waste liquid tank 105. 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-shaped filter screen 1033. The spray cooling unit 104 is located above the waste liquid tank 105 and is used to cool the pocket-shaped filter screen 1033.

[0064] The use of the furnace system 1 includes the following process: the worker puts aluminum ingots into the furnace 101, the furnace 101 melts the aluminum ingots and then pours them out. At this time, the louvered filter screen 1033 is driven down by the turntable 1032 to the top of the holding furnace 102. The poured aluminum liquid is filtered through the louvered filter screen 1033 and enters the holding furnace 102. Most of the slag in the aluminum liquid remains in the louvered filter screen 1033. The turntable 1032 rotates the louvered filter screen 1033 to the top of the waste liquid tank 105. The spray cooling unit 104 sprays water to cool the slag. The waste liquid flows into the waste liquid tank 105. The cooled slag can be taken away for recycling.

[0065] Preferably, the base 1031 is equipped with an electromagnet 1034 for attracting the turntable 1032, and the turntable 1032 is equipped with a vibrator 1035 for vibrating the pocket-shaped filter screen 1033. After the electromagnet 1034 attracts the turntable 1032, the turntable 1032 can be kept stable during the pouring of molten aluminum, preventing the turntable 1032 from tilting. The vibrator 1035 can vibrate the pocket-shaped filter screen 1033, promoting the separation of molten aluminum and slag in the pocket-shaped filter screen 1033. Due to the vibrator 1035, the electromagnet 1034 can better maintain the stability of the turntable 1032.

[0066] The adjustable base 1031 allows the turntable 103 to be adapted to different models of furnace 101.

[0067] like Figures 7 to 10 As shown, the die-casting machine 2 includes a feeding device 203, which includes a pushing chamber 2031, a pushing rod 2032, a feeding robotic arm 2033, and a filter replacement robotic arm 2036. One end of the pushing chamber 2031 is open, serving as the outlet for molten aluminum. The other end of the pushing chamber 2031 is also open, through which the end of the pushing rod 2032 enters the pushing chamber 2031. The top surface of the pushing chamber 2031 is open, serving as the inlet for molten aluminum. A feeding filter is provided outside the top surface opening of the pushing chamber 2031. After being filtered by the feeding filter, the molten aluminum enters the pushing chamber 2031. The feeding robotic arm 2033 is equipped with a ladle (existing technology, not shown in the figure). The feeding robotic arm 2033 controls the ladle to pour the molten aluminum from the furnace system 1 into the pushing chamber 2031.

[0068] The feeding filter section 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 diameter at both ends of the outer cylinder 2034 is larger than the opening diameter at the top surface of the pushing chamber 2031. The lower part of the outer cylinder 2034 is fixed outside the opening at the top surface of the pushing chamber 2031. The inner cylinder 2035 fits perfectly into the hollow portion of the outer cylinder 2034. The inner cylinder 2035 is open at both the top and bottom and is hollow, with the upper opening diameter larger than the lower opening diameter. The lower opening diameter is equal to the top opening diameter of the pusher cavity 2031. A feed filter 2037, located in the hollow portion of the inner cylinder 2035, is fixed to the lower opening of the inner cylinder 2035. The feed filter 2037 has a frustum-shaped structure, wider at the bottom and narrower at the top. A lifting ring 2038 protrudes from the outer cylinder 2034 on the feed filter 2037. The filter replacement robotic arm 2036 removes and installs the feed filter 2037 by gripping the lifting ring 2038. Furthermore, to prevent aluminum molten metal splashing, the outer cylinder 2034 and inner cylinder 2035 have a certain height, at least higher than the pusher cavity 2031.

[0069] The operation of the feeding device 203 includes: the inner cylinder 2035 is installed inside the outer cylinder 2034; the feeding robotic arm 2033 scoops up the molten aluminum from the holding furnace 102 using a 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 chamber 2031; the slag in the molten aluminum remains in the inner cylinder 2035; the pushing rod 2032 pushes the molten aluminum entering the pushing chamber 2031 between the moving mold 201 and the fixed mold 202. When there is a lot of slag in the inner cylinder 2035, the filter screen replacement robotic arm 2036 lifts and removes the inner cylinder 2035 by gripping the lifting ring 2038; after cleaning the feeding filter screen 2037, it is then installed back into the outer cylinder 2034.

[0070] When installing the inner cylinder 2035, if both the outer wall of the inner cylinder 2035 and the inner wall of the outer cylinder 2034 are straight arms, the inner cylinder 2035 will become stuck if it tilts during its descent, resulting in improper installation. To solve this problem, the inner diameter of the hollow part of the outer cylinder 2034 gradually decreases from top to bottom, forming an inverted frustum cavity. Similarly, the outer diameter of the inner cylinder 2035 gradually decreases from top to bottom, also forming an inverted frustum. This design allows the inner cylinder 2035 to be guided along the inner wall of the outer cylinder 2034 during its descent, preventing it from becoming stuck.

[0071] Preferably, the portion of the pusher bar 2032 that enters the pusher chamber 2031 is provided with a built-in cooling water channel 2039, which forms a cooling water inlet and a cooling water outlet on the side wall of the pusher bar 2032. A cooling circulation pipeline is installed inside the pusher bar 2032 to appropriately reduce the temperature of the boiling molten metal, preventing voids in the die-casting part due to the boiling of the molten metal. Of course, the temperature of the cooling water should be appropriate and should not be excessively reduced to ensure the quality of the die casting.

[0072] like Figures 10 to 12As shown, the die-casting machine 2 includes a frame 204, a moving mold 201, and a fixed mold 202. A cooling and lubrication device 205 is provided on the frame 204. The cooling and lubrication device 205 includes a cooling and lubrication rotating unit 2051, a cooling and lubrication lifting unit 2052, and a cooling and lubrication seat 2053. The cooling and lubrication rotating unit 2051 is fixed on the frame 204, and its rotating end is fixed to the cooling and lubrication lifting unit 2052. The lifting end of the cooling and lubrication lifting unit 2052 is fixed to the cooling and lubrication seat 2053. After the moving mold 201 and the fixed mold 202 are separated, the cooling and lubrication seat 2053 can descend into the space between them. The cooling and lubrication seat 2053 has a cooling water nozzle 2054 and an air outlet 2056 on one side, and a lubricant nozzle 2055 and an air outlet 2056 on the opposite side. The cooling and lubrication seat 2053 has cooling water pipes, lubricant pipes and air ducts inside. The cooling water pipes are used to supply external cooling water to the cooling water nozzle 2054, the lubricant pipes are used to supply external lubricant to the lubricant nozzle 2055, and the air ducts are used to supply air generated by an external fan to the air outlet 2056.

[0073] The bottom surface of the cooling and lubrication seat 2053 is provided with two liquid receiving trays 2057 located below the cooling water nozzle 2054 and the lubricant nozzle 2055, respectively. The outer side of the liquid receiving tray 2057 is in contact with the side wall of the separated moving mold 201 or the side wall of the fixed mold 202. The cooling and lubrication seat 2053 is provided with a cooling water recovery channel and a lubricant recovery channel. The bottom surface of the liquid receiving tray 2057 is an inclined surface that slopes towards the cooling and lubrication seat 2053, which is used to guide the cooling water in the tray into the cooling water recovery channel and guide the lubricant in the tray into the lubricant recovery channel.

[0074] The operation of the cooling and lubrication device 205 is as follows:

[0075] When die casting is completed, the moving mold 201 and the fixed mold 202 are opened. After the casting is removed, the cooling and lubrication lifting unit 2052 drives the cooling and lubrication seat 2053 to descend between the moving mold 201 and the fixed mold 202. At this time, the cooling water nozzle 2054 is aligned with the moving mold 201, and the lubricant nozzle 2055 is aligned with the fixed mold 202. The cooling water nozzle 2054 sprays cooling water to cool the moving mold 201. The sprayed cooling water is recovered and guided by the liquid receiving pan 2057 and enters the cooling water recovery channel.

[0076] After the moving mold 201 has cooled down, the cooling and lubrication rotating unit 2051 drives the cooling and lubrication seat 2053 to rotate, so that the cooling water nozzle 2054 is aligned with the fixed mold 202 and the lubricant nozzle 2055 is aligned with the moving mold 201. At this time, the air blowing port 2056 on the side of the moving mold 201 blows air to dry the moving mold 201. After drying, lubricant is sprayed to lubricate the moving mold 201, and the liquid receiving tray 2057 below collects the lubricant into the lubricant recovery channel. At the same time, the cooling water nozzle 2054 on the side of the fixed mold 202 sprays cooling water to cool the fixed mold 202. The sprayed cooling water is recovered and guided by the liquid receiving tray 2057 and enters the cooling water recovery channel.

[0077] After the fixed mold 202 is cooled and the moving mold 201 is lubricated, the cooling and lubrication rotating unit 2051 drives the cooling and lubrication seat 2053 to rotate, so that the cooling water nozzle 2054 is aligned with the moving mold 201 and the lubricant nozzle is aligned with the fixed mold 202. At this time, the air blowing port 2056 on the side of the fixed mold 202 blows air to dry the fixed mold 202. After drying, lubricant is sprayed to lubricate the fixed mold 202, and the liquid receiving tray 2057 below collects the lubricant into the lubricant recovery channel.

[0078] After the fixed mold 202 is lubricated, the cooling and lubrication lifting unit 2052 drives the cooling and lubrication seat 2053 to rise, completing the cooling and lubrication process.

[0079] Although a drip tray 2057 is provided at the bottom of the cooling and lubrication seat 2053, it is inevitable that lubricating fluid and cooling water will still accumulate on the bottom surface of the die-casting machine 2 between the moving mold 201 and the fixed mold 202. Preferably, such as... Figure 13 As shown, the die-casting machine 2 has a waste liquid tank and a waste liquid discharge pipe 2058 on its bottom surface between the moving mold 201 and the fixed mold 202, which are used to discharge unrecovered lubricating liquid and cooling water.

[0080] like Figure 14 and Figure 15As shown, the cooling device 3 includes a transfer robotic arm 301, a cooling loading conveyor belt 302, N cooling water tanks 303, a cooling unloading conveyor belt 304, a cooling drying unit 305, and a cooling gantry robotic arm 306. The transfer robotic 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 towards the cooling water tanks 303. The N cooling water pools 303 are arranged in a straight line, and each cooling water pool 303 is equipped with a temperature sensor 307, a drug concentration sensor 308, and a heating device 309. The cooling water pools 303 are connected to a circulation pipeline, and a filter 310, a water supply pipe 311, and a drug dosing 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 to remove impurities through the filter 310, water is replenished through the water supply pipe 311, drug concentration is replenished through the drug dosing pipe 312, and the heating device 309 is used to heat the water pool to keep the water pool temperature constant at a set value. The cooling unloading conveyor belt 304 is used to move the castings towards the edge-removing device. The cooling unloading conveyor belt 304 is a mesh belt, and a water receiving tray and drain pipe are provided below it. Castings exiting the cooling water tank 303 retain a significant amount of moisture. This residual moisture flows from the castings, through the mesh of the conveyor belt into the water receiving tray, and is discharged through the drain pipe. The cooling drying unit 305 is located above the cooling unloading conveyor belt 304 and is used to dry the castings on the cooling unloading conveyor belt 304. The cooling gantry robotic arm 306 can be vertically raised and lowered and moves along the arrangement direction of the cooling water tanks 303. It is used to transfer castings from the cooling loading conveyor belt 302 to the cooling water tank 303, move castings from one cooling water tank 303 to the next, and finally transfer castings from the cooling water tank 303 to the cooling unloading conveyor belt 304.

[0081] For cooling the die-cast parts, multiple cooling water tanks 303 are set, each with a different temperature setting. The temperature setting must conform to the temperature change curve of the casting material. This ensures that the die-cast parts maintain their ideal microstructure and physical properties during cooling, effectively preventing problems such as deformation and cracking. The temperature setting process for each cooling water tank 303 is as follows:

[0082] The water temperature Ti of the i-th cooling water tank 303 is determined by the following formula:

[0083] Ti = a * T env +(T0-T env )e -k(i*Δt) +b;

[0084] Where 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 more accurately fitted.

[0085] 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 coefficient of the casting;

[0086] t is time, Δt = t total / N,t total Represents the total cooldown time, t total =-1 / k*ln((T) f -T env ) / (T0-T env ));T f It is the final temperature of the casting after it has cooled.

[0087] After the casting is cooled in cooling device 3 and output, it is manually trimmed in a knocking and trimming device, and then manually polished in grinding device 4. In this embodiment, the knocking and trimming device uses an existing device, but for grinding device 4, in order to handle the debris generated during grinding, the applicant has developed a new structure, such as... Figures 16 to 21 As shown.

[0088] The grinding device 4 includes a grinding chamber 401, a grinding belt assembly 402, a grinding drive unit 403, a water inlet plate 404, a water tank 405, a water pump 406, a return channel 407, a waste chip trough 408, a protective plate 409, and a clean water tank 410. The water inlet plate 404 is placed vertically, with its upper part being a vertical plate extending to the top of the grinding chamber 401 and its lower part being a horizontal plate extending to the bottom of the grinding chamber 401. 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 is driven by the grinding drive unit 403. The grinding belt assembly 402 is located in front of the water inlet plate 404. The waste chip trough 408 is located behind the water intake plate 404. The two ends of the return channel 407 are connected to the return hole 411 and the waste chip trough 408, respectively. The waste chip trough 408 is provided with a detachable gate 412 and a filter plate 413 on its side. The clear water tank 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 intake plate 404. The outlet of the water tank 405 is located on the front side of the water intake plate 404. The water pump 406 is installed in the clear water tank 410. The outlet of the water pump 406 extends into the water tank 405 through a pipeline.

[0089] The operation of the polishing device 4 is as follows:

[0090] Workers grind and polish the cooled and dried castings on the grinding belt assembly 402. The debris generated during the grinding process accumulates at the bottom of the grinding chamber 401, which is the horizontal plate below the water inlet plate 404. Water in the water tank 405 flows down the water inlet plate 404 through the water outlet 414, carrying the accumulated debris into the return hole 411. The water carrying the debris flows through the return hole 411 and the return 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 clear water tank 410. The water in the clear water tank 410 is pumped 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 usage. A water replenishment pipe 311 and a water level sensor can be installed for automatic replenishment). When there is a lot of waste in the waste trough 408, pull up the gate 412 to clean out the waste; when the filter plate 413 does not filter well, it can be cleaned and replaced by disassembling the filter plate 413.

[0091] Preferably, the guard plate 409 is installed on the outside of the grinding belt assembly 402 to block sparks that fly outward during grinding.

[0092] like Figures 22 to 28 As shown, the vibratory grinding device 5 includes a feeding conveyor belt 501 for cleaning, a cleaning tank 503, a cleaning gantry robotic arm 504, a discharging conveyor belt 502 for cleaning, a cleaning drying unit 505, a vibrating base 506, and an annular grinding trough 507 installed above the vibrating base 506. The annular grinding trough 507 has a tangential discharge port, and its top surface is provided with an arc-shaped perforated plate 508. One end of the perforated plate 508 connects to the tangential discharge port, and the other end has a detachable and inclined perforated ramp plate 509. During discharge, one end of the perforated ramp plate 509 connects to the other end of the perforated plate 508, and the other end connects to the bottom surface of the grinding trough 507. During grinding, the perforated ramp plate 509 moves out of the grinding trough 507. The mesh diameter of the perforated plate 508 and the perforated ramp plate 509 is larger than the particle size of the grinding media, but smaller than the size of the casting. One end of the cleaning feed 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 tank 503. The cleaning discharge conveyor belt 502 is located at the other end of the cleaning tank 503. The cleaning discharge conveyor belt 502 is a mesh belt, and a water receiving tray and a drain pipe are provided below it. The cleaning drying unit 505 is located above the cleaning discharge conveyor belt 502. The cleaning gantry robotic arm 504 can be vertically lifted and horizontally moved to transport the castings on the cleaning feed conveyor belt 501 to the cleaning tank and to move the castings in the cleaning tank to the cleaning discharge conveyor belt 502.

[0093] The operation of the vibratory grinding device 5 is as follows:

[0094] If the castings that have been polished still need to be brightened, the workers throw the castings into the grinding tank 507 filled with grinding media (such as steel balls). At this time, the mesh climbing plate 509 is connected to the other end of the mesh plate 508.

[0095] Start the grinding tank 507, and make the surface of the casting bright by vibration and adding a brightening agent;

[0096] After installing the perforated ramp plate 509, the grinding tank 507 is restarted. During the vibration process, the grinding media passes through the perforated ramp plate 509 and falls through the mesh of the perforated ramp plate 509. During the vibration process, the casting climbs the perforated ramp plate 509 and enters the cleaning feeding conveyor belt 501 along the perforated plate 508. Then, under the action of the cleaning gantry robotic arm 504, it is cleaned in the clean water tank and enters the cleaning unloading conveyor belt 502. The residual water on the casting falls through the mesh of the conveyor belt, is collected in the water receiving tray and discharged through the drain pipe. At the same time, the cleaning drying unit 505 dries the cleaned casting.

[0097] The connection between the perforated climbing plate 509 and the perforated flat plate 508 can be achieved manually or automatically; this embodiment uses the automatic lifting method. The vibratory grinding device 5 of this embodiment includes 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 perforated flat plate 508. The perforated climbing plate 509 is slidably connected to the guide rail groove 511 and can slide along the guide rail groove 511, driven by the climbing plate moving part. The transmission structure of the perforated climbing plate 509 can be achieved using a gear and rack mechanism. During grinding, the perforated climbing plate 509 descends below the bottom surface of the grinding tank 507; during discharge, the perforated climbing plate 509 rises against the resistance of the grinding media and connects with the other end of the perforated flat plate 508.

[0098] like Figure 25 As shown, the bottom surface of the grinding tank 507 is provided with a discharge port 512. A closed discharge plate 513 and a discharge plate moving part are slidably connected to the outer wall of the bottom surface of the grinding tank 507. The discharge plate moving part is used to drive the closed discharge plate 513 to move horizontally. The surface of the closed discharge plate 513 is composed of a filter section 5131, a closed section 5132, and an open section 5133 along 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 open section 5133 corresponds to the discharge port 512, it is used to tilt the grinding media in the grinding tank 507 to discharge. By setting a closed discharge plate 513, three working states can be realized: closed during grinding, filtering out debris during cleaning, and tilting out the grinding media when not in operation.

[0099] The above embodiments are only used to explain the concept of this utility model, and are not intended to limit the protection of this utility model. Any non-substantial modifications made to this utility model using this concept should fall within the protection scope of this utility model.

Claims

1. A die-casting machine for a die-casting production line, comprising a die-casting machine body and a furnace system, wherein the die-casting machine body includes a pushing chamber, a pushing rod, and a feeding robotic arm; one end of the pushing chamber is open as an outlet for molten aluminum, the other end of the pushing chamber is open, and the end of the pushing rod enters the pushing chamber through this opening; the top surface of the pushing chamber is open as an inlet for molten aluminum; the feeding robotic arm is equipped with a ladle, and the feeding robotic arm controls the ladle to pour molten aluminum from the furnace system into the pushing chamber; characterized in that: The top opening of the pushing chamber is provided with a feeding filter section. After the aluminum liquid is filtered by the feeding filter section, it enters the pushing chamber. 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 opposite sides of the turntable. A pocket-shaped filter screen is installed on the turntable, which can be positioned above the holding furnace or the waste liquid tank. The furnace is located on one side of the holding furnace. Molten aluminum in the furnace is poured into the holding furnace through the pocket-shaped filter screen. The spray cooling unit is located above the waste liquid tank and is used to cool the pocket-shaped filter screen.

2. The die-casting machine for a die-casting production line as described in claim 1, characterized in that: The feeding filter section includes an outer cylinder and an inner cylinder. The upper and lower ends of the outer cylinder are open and hollow. The opening diameter at both ends of the outer cylinder is larger than the opening diameter at the top surface of the pushing chamber. The lower part of the outer cylinder is fixed outside the opening at the top surface of the pushing chamber. The inner cylinder can be inserted into the hollow part of the outer cylinder. The upper and lower ends of the inner cylinder are open 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 located in the hollow part of the inner cylinder is fixed on the lower opening of the inner cylinder. The feeding filter screen has a frustum structure that is smaller at the top and larger at the bottom.

3. A die-casting machine for a die-casting production line as described in claim 2, characterized in that: The die-casting machine body includes a filter screen replacement robotic arm. The feed filter screen is provided with a lifting ring that protrudes from the outer cylinder. The filter screen replacement robotic arm removes and installs the feed filter screen by gripping the lifting ring.

4. A die-casting machine for a die-casting production line as described 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 frustum cavity, and the outer diameter of the inner cylinder gradually decreases from the top to the bottom, forming an inverted frustum shape.

5. A die-casting machine for a die-casting production line as described in claim 1, characterized in that: The portion of the pusher bar that enters the pusher chamber is provided with a built-in cooling water channel, which forms a cooling water inlet and a cooling water outlet on the side wall of the pusher bar.

6. A die-casting machine for a die-casting production line as described in claim 1, characterized in that: The base is equipped with an electromagnet for attracting the turntable.

7. A die-casting machine for a die-casting production line as described in claim 1, characterized in that: The turntable is equipped with a vibrator for vibrating the pocket-shaped filter screen.

8. A die-casting machine for a die-casting production line as described in claim 1, characterized in that: The die-casting machine body includes a moving mold and a fixed mold, and the cooling and lubrication device is mounted on top of the die-casting machine body via a frame. The cooling and lubrication device includes a cooling and lubrication rotating unit, a cooling and lubrication lifting unit, and a cooling and lubrication seat. The cooling and lubrication rotating unit is fixed on the frame, and the cooling and lubrication lifting unit is fixed at its rotating end. The cooling and lubrication seat is fixed at the lifting end of the cooling and lubrication lifting unit. After the moving mold and the fixed mold are separated, the cooling and lubrication seat can descend and enter between the two. The cooling and lubrication seat has a cooling water nozzle and an air blower on one side, and a lubricant nozzle and an air blower on the opposite side. The interior of the cooling and lubrication seat is equipped with cooling water pipes, lubricant pipes, and air ducts.

9. A die-casting machine for a die-casting production line as described in claim 8, characterized in that: The bottom surface of the cooling and lubrication seat is provided with two liquid receiving trays located below the cooling water nozzle and the lubricant nozzle, respectively. The outer side of the liquid receiving tray is exactly in contact with the side wall of the moving mold or the side wall of the fixed mold after separation. The cooling and lubrication seat is provided with a cooling water recovery channel and a lubricant recovery channel. The bottom surface of the liquid receiving tray is an inclined surface that slopes towards the cooling and lubrication seat to guide the cooling water in the tray into the cooling water recovery channel and guide the lubricant in the tray into the lubricant recovery channel.

10. A die-casting machine for a die-casting production line as described in claim 8 or 9, characterized in that: The die-casting machine is equipped with a waste liquid tank and a waste liquid discharge pipeline on the bottom surface located between the moving mold and the fixed mold.

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