An automatic mold opening and closing device and an automatic discharging device for die casting mold

Abstract

This utility model relates to the field of die casting production equipment technology, and in particular to an automatic die casting mold opening and closing device and an automatic unloading device, including a mold closing mechanism, a resistance melting furnace conveying mechanism, an unloading device, and a conveying device. Two sets of mold closing mechanisms are arranged side by side on the ground. A side mold device is set at the bottom of the mold closing mechanism and a top mold device is set at the top. A pit is dug in the ground below the mold closing mechanism. The resistance melting furnace conveying mechanism is set in the pit, and a lifting device is also set in the pit. The unloading device includes a cantilever material picking device and a clamping device. The cantilever material picking device is set on the mold closing mechanism, and the clamping device is set between the two sets of mold closing mechanisms. The conveying device includes a product support device and a product conveying line. The product support device is set below the clamping device, and the product conveying line is set above the product support device.

Description

Technical Field

[0001] This utility model relates to the field of die casting production equipment technology, and in particular to an automatic die casting mold opening and closing device and an automatic material feeding device. Background Technology

[0002] With the development of the manufacturing industry, some machined parts have been replaced by castings. Aluminum alloy castings are generally produced by pouring molten aluminum alloy into a mold cavity using sand molds or metal molds, resulting in aluminum alloy castings of various shapes and sizes. Castings are integrally formed parts, requiring fewer processing steps than machining. Molds can be used for mass production with stable dimensions. Mold production involves pouring molten metal into the mold and manually transferring the produced products. To improve the production efficiency of aluminum alloy products, auxiliary mold opening and closing equipment is used in mold processing to reduce labor intensity and increase production efficiency. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide an automatic mold opening and closing device and an automatic material feeding device for die casting molds, so as to realize the automatic opening and closing of aluminum alloy molds, the alternating filling of liquid metal, the rationalization of time, automatic material feeding, and the improvement of production efficiency.

[0004] The technical solution adopted by this utility model is: An automatic mold opening and closing device and an automatic unloading device for die casting molds include a mold closing mechanism, a resistance melting furnace conveying mechanism, an unloading device, and a conveying device. The mold closing mechanism includes a mold mounting frame, a side mold device disposed at the bottom of the mold mounting frame, and a top mold device disposed at the top of the mold mounting frame. The side mold devices are arranged opposite each other in pairs and their mold closing directions are opposite to each other. The mold closing direction of the top mold device faces the side mold devices. After the side mold devices and the top mold devices are closed, a mold cavity is formed. A top mold is disposed on the top mold device, and an ejector device is disposed in match with the top mold. The ejector device pushes the top mold to demold the product in the mold cavity. The resistance melting furnace conveying mechanism is disposed below the mold closing mechanism.

[0005] The resistance melting furnace conveying mechanism includes an I-beam track, with a set of trolley devices at each end of the I-beam track. The resistance melting furnace is mounted on the trolley device, which is driven by a motor and sprocket. The trolley devices alternately run on the I-beam track, and the resistance melting furnace alternately supplies hydraulic molten metal to the mold closing mechanism.

[0006] A lifting device is also installed below the conveying mechanism of the resistance melting furnace. The lifting device lifts the resistance melting furnace so that the port of the resistance melting furnace matches and connects with the mold cavity.

[0007] Two sets of mold closing mechanisms are arranged side by side, and the resistance melting furnace conveying mechanism and lifting device are also matched. A material unloading device is set between the mold closing mechanisms. The material unloading device includes a cantilever material picking device and a clamping device. The cantilever material picking device is set on the mold mounting frame, and the clamping device is set between the two mold closing mechanisms. The cantilever material picking device rotates to the bottom of the top mold device to receive the casting product after demolding, and rotates the received casting product to the bottom of the clamping device. The clamping device clamps the casting product and places it on the conveying device.

[0008] The conveying device includes a product support device and a product conveying line. The product support device is located below the clamping device, and the product conveying line is located above the product support device.

[0009] The side mold device includes a side mold base, on which a first hydraulic cylinder is mounted. The output direction of the first hydraulic cylinder is horizontally extended, and a first push plate is mounted on the output shaft end of the first hydraulic cylinder. First guide posts are mounted at the four corners of the first push plate. One end of the first guide post is fixedly mounted on the first push plate, and the other end passes through the side mold base to mount a first mounting plate. A first support post is mounted on the first mounting plate. A first adapter plate is mounted on the first support post. A second support post is mounted on the first adapter plate. The side mold is mounted on the second support post.

[0010] The top mold device includes a second hydraulic cylinder, a second push plate is provided at the output shaft end of the second hydraulic cylinder, first mounting posts are provided at the four corners of the second push plate, one end of the first mounting post is fixedly provided on the second push plate, and the other end is provided on the first fixing plate, second guide posts are provided at the four corners of the first fixing plate, one end of the second guide post is fixedly provided on the first fixing plate, and the other end is fixedly provided on the second fixing plate, a third support post is provided below the second fixing plate, a second adapter plate is provided at the other end of the third support post, a fourth support post is provided below the second adapter plate, and the top mold is provided at the other end of the fourth support post.

[0011] The top mold is equipped with an ejector device, which includes a third hydraulic cylinder and an ejector flange. The third hydraulic cylinder is mounted on the second fixed plate, and its output shaft passes through the second fixed plate. The output shaft end of the third hydraulic cylinder is equipped with an ejector flange.

[0012] The lifting device includes a fixed base, with second mounting columns at the four corners of the fixed base, a third fixing plate on the second mounting columns, a fourth hydraulic cylinder on the third fixing plate, an output shaft of the fourth hydraulic cylinder passing through the third fixing plate and facing upward, a lifting frame at the end of the output shaft, and third guide columns at the four corners of the lifting frame, with the other end of the third guide columns passing through the third fixing plate.

[0013] The cantilever material handling device includes a support, which is mounted on a mold mounting frame. A second motor is vertically mounted on the support. A first gear is mounted on the output shaft end of the second motor. A vertical rotating shaft is mounted on the side of the second motor. A second gear is mounted on the shaft end of the rotating shaft. The second gear meshes with the first gear. A rotating shaft sleeve is fitted on the rotating shaft. A material receiving cantilever is mounted on the rotating shaft sleeve.

[0014] The gripping device includes a mounting base, a gripping claw assembly slidably disposed on the top of the mounting base, and a first pushing assembly matched with the gripping claw assembly. The first pushing assembly is disposed on the mounting base and pushes the gripping claw assembly to move.

[0015] The gripper assembly includes a gripper mounting frame, on which two sets of gripper assemblies are slidably arranged. The two sets of gripper assemblies are arranged opposite each other, and a second pushing component is matched with the two sets of gripper assemblies. The second pushing component is arranged on the gripper mounting frame to push the two sets of gripper assemblies to move relative to each other and towards each other.

[0016] The gripper assembly includes a sliding seat, which is slidably mounted with a gripper mounting bracket. A fifth hydraulic cylinder is vertically mounted in the middle of the upper surface of the sliding seat. The output shaft of the fifth hydraulic cylinder passes through the sliding seat. An extension shaft is mounted at the end of the output shaft of the fifth hydraulic cylinder, and a gripper is mounted at the end of the extension shaft.

[0017] A bushing is provided in the middle of the lower end face of the sliding seat. The bushing is sleeved on the outside of the extension shaft. A fixed end cover is provided on the bottom end face of the bushing. The shaft end of the extension shaft passes through the fixed end cover. An elongated anti-rotation groove is provided on the extension shaft. An anti-rotation block is provided at the bottom of the fixed end cover. The size of the anti-rotation block matches the size of the anti-rotation groove. The anti-rotation block is inserted into the anti-rotation groove.

[0018] The beneficial effects of this utility model are: This utility model discloses an automatic mold opening and closing device and an automatic unloading device for die casting molds, including a mold closing mechanism, a resistance melting furnace conveying mechanism, an unloading device, and a conveying device. The mold closing mechanism integrates a side mold device and a top mold device, which cooperate with each other to automatically open and close the mold. A pit is dug in the ground below the mold closing mechanism, and the resistance melting furnace conveying mechanism is set in the pit. The resistance melting furnace conveying mechanism includes a trolley device, which is set on an I-beam track and has a resistance melting furnace on it. The trolley device automatically transports the resistance melting furnace to the area below the mold closing mechanism. The resistance melting furnace conveying mechanism is also matched with a lifting device, which is set in the pit and below the mold closing mechanism. The lifting device, located below the trolley device, can lift the trolley device, allowing the resistance melting furnace to match and connect with the mold on the mold closing mechanism, and pouring the casting into the mold cavity. Molten metal is poured in. Because the resistance melting furnace takes a long time to melt aluminum alloy ingots, to optimize the production cycle and improve efficiency, two sets of mold-closing mechanisms are arranged side-by-side. Each mold-closing mechanism is equipped with two sets of resistance melting furnaces, which alternately pour molten metal into the mold cavity within the mold-closing mechanism. A material unloading device is also installed between the mold-closing mechanisms. The unloading device includes a cantilever material handling device and a clamping device. The cantilever material handling device is used to remove the casting products produced by the mold within the mold-closing mechanism, and the clamping device is used to clamp the casting products from the cantilever material handling device and place them on the conveying device. The conveying device includes a product support device and a product conveying line. The product support device is used to receive and place the casting products clamped by the clamping device, and the product conveying line is used to transport the casting products on the product support device to the next workstation, automatically unloading materials and improving production efficiency. Attached Figure Description

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in conjunction with the accompanying drawings. However, the embodiments in the drawings do not constitute any limitation on this utility model. For those skilled in the art, other drawings can be obtained based on the following drawings without any creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure; Figure 2 for Figure 1 Top view; Figure 3 Schematic diagram of the installation of aluminum alloy resistance melting furnace, trolley device, and lifting device inside the pit; Figure 4 This is a schematic diagram of the mold closing mechanism. Figure 5 This is a schematic diagram of the side mold device structure; Figure 6 This is a schematic diagram of the top mold device structure; Figure 7 This is a schematic diagram of the conveying mechanism of a resistance melting furnace; Figure 8 A schematic diagram of the connection structure between the aluminum alloy resistance melting furnace and the frame mounting base plate; Figure 9 This is a schematic diagram of the clamping device. Figure 10 This is a schematic diagram of the gripper assembly structure; Figure 11 This is a schematic diagram of the anti-rotation structure of the gripper assembly; Figure 12 This is a schematic diagram of the installation structure for product support devices and product conveyor lines.

[0021] In the picture: 1-Mold mounting frame, 101-Frame body, 102-Frame mounting base plate, 1021-Runner inlet, 103-Top mold mounting plate, 104-Inlet pipe, 2-Side mold assembly, 201-Side mold base, 202-First hydraulic cylinder, 203-First guide pillar, 204-First push plate, 205-First guide sleeve, 206-First mounting plate, 207-First support pillar, 208-First adapter plate, 209- Second support column, 3-Top mold device, 301-Second hydraulic cylinder, 302-Second push plate, 303-First mounting column, 304-First fixing plate, 305-Second guide column, 307-Second fixing plate, 308-Third support column, 309-Second transition plate, 310-Fourth support column, 312-Third hydraulic cylinder, 313-Top material flange, 4-Resistant melting furnace, 401-Furnace body, 402-Outlet pipe 5-Trolley assembly, 501-Frame, 502-First motor, 503-First sprocket, 504-Wheel connecting shaft, 505-Wheel set, 506-Second sprocket, 6-Lifting device, 601-Fixed base, 602-Second mounting column, 603-Third fixing plate, 604-Fourth hydraulic cylinder, 605-Lifting frame, 606-Third guide column, 7-Cantilever material handling device, 701-Support, 702-Second motor, 703-First gear, 704-Rotating shaft, 705-Second gear, 706-Rotating bushing, 707-Receiving cantilever, 708-Soft pad, 8-Clamping device, 801-Mounting base, 802-First linear guide rail, 803-Clamping claw mounting frame, 804-Second linear guide rail, 805-Clamping claw assembly, 8051-Sliding arm 8052-Fifth Hydraulic Cylinder, 8053-Gripping Claw, 8054-Shaft Sleeve, 8055-Fixed End Cover, 8056-Anti-rotation Block, 8057-Extension Shaft, 80571-Anti-rotation Groove, 806-First Fixed Seat, 807-Sixth Hydraulic Cylinder, 808-First Push Seat, 809-Seventh Hydraulic Cylinder, 810-Second Fixed Seat, 811-First Push Flange, 812-Second Push Flange, 9-Product Support Device, 901-Support Base, 902-Third Mounting Column, 903-Fourth Fixing Plate, 904-Eighth Hydraulic Cylinder, 905-Support Fixing Plate, 906-Fourth Guide Column, 907-Support Flange, 10-Product Conveying Line, 1001-Electric Roller, 11-Pit, 12-I-beam Rail, 13-Side Mold, 14-Top Mold. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0023] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0024] like Figures 1-3 As shown, an automatic mold opening and closing device and an automatic material unloading device for die casting molds include a mold closing mechanism, a resistance melting furnace conveying mechanism, a material unloading device, and a conveying device. Two sets of mold closing mechanisms are arranged side-by-side on the ground. Each mold closing mechanism includes a mold mounting frame 1, on which a side mold device 2 and a top mold device 3 are mounted. The side mold device 2 and the top mold device 3 cooperate with each other to automatically open and close the mold. A pit 11 is dug in the ground below the mold closing mechanism. A resistance melting furnace conveying mechanism is installed in the pit 11. The resistance melting furnace conveying mechanism includes an I-beam track 12, which is located at the bottom of the pit 11. A set of trolley devices 5 is installed at each end of the I-beam track 12. A resistance melting furnace 4 is installed on the trolley device 5. The two sets of trolley devices 5 alternately convey the resistance melting furnace 4 to the bottom of the mold closing mechanism to transport the molten metal in the resistance melting furnace 4 to the mold cavity on the mold closing mechanism. The resistance melting furnace conveying mechanism is also matched with a lifting device 6, which is located in the pit 11 and below the mold closing mechanism. When the trolley device 5 conveys the resistance melting furnace 4 to the bottom of the mold closing mechanism, the lifting device 6 is located below the trolley device 5 and can lift the trolley device 5 so that the resistance melting furnace 4 matches and connects with the mold on the mold closing mechanism, which facilitates the delivery of molten metal to the mold cavity after mold closing. A material unloading device is also provided between the two mold-closing mechanisms. The material unloading device includes a cantilever material handling device 7 and a clamping device 8. The cantilever material handling device 7 is used to remove the casting products produced by the mold in the mold-closing mechanism from the mechanism. The clamping device 8 is used to clamp the casting products from the cantilever material handling device 7 and place the casting products on the conveying device. The conveying device includes a product support device 9 and a product conveying line 10. The product support device 9 is used to receive and place the casting products clamped by the clamping device 8. The product conveying line 10 is used to transport the casting products on the product support device 9 to the next workstation.

[0025] In this embodiment, because the resistance melting furnace 4 takes a long time to melt aluminum alloy ingots, each mold-closing mechanism is equipped with two sets of resistance melting furnaces 4, which alternately supply material to the mold cavity in the mold-closing mechanism to improve efficiency.

[0026] like Figure 4As shown, the mold mounting frame 1 includes a frame body 101, a frame mounting base plate 102, a top mold mounting top plate 103, and an inlet pipe 104. The frame body 101 is a vertically arranged frame structure with four sets of support legs on the ground. The frame mounting base plate 102 is located at the bottom of the frame body 101, and the top mold mounting top plate 103 is located at the top of the frame body 101. At least two sets of side mold devices 2 are provided on the frame mounting base plate 102, with the side mold devices 2 arranged opposite each other in opposite directions when closing. A top mold device 3 is provided on the top mold mounting top plate 103, with the top mold device 3 closing towards the side mold devices 2. A flow channel opening 1021 is provided on the frame mounting base plate 102, and the flow channel opening 1021 is located at the center of the frame mounting base plate 102. Figure 8 As shown, an inlet pipe 104 is provided at the bottom of the flow channel 1021. The inlet pipe 104 is matched with the resistance melting furnace 4 and serves as a flow channel for molten metal to enter the mold cavity.

[0027] like Figure 5 As shown, the side mold device 2 includes a side mold base 201, which is mounted on the frame mounting base plate 102. A first hydraulic cylinder 202 is provided on the side plate of the side mold base 201. The output direction of the first hydraulic cylinder 202 is horizontally pushed out. A first push plate 204 is provided at the output shaft end of the first hydraulic cylinder 202. A first guide sleeve 205 is provided at the four corners of the side plate of the side mold base 201. A first guide post 203 is slidably inserted in the first guide sleeve 205. One end of the first guide post 203 is fixedly mounted on the first push plate 204, and the other end is provided with a first mounting plate 206. A plurality of through T-slots are provided on the first mounting plate 206. A first support post 207 is provided in the slot. The position of the first support post 207 in the T-slot is adjustable. A first adapter plate 208 is provided on the first support post 207. A second support post 209 is provided on the first adapter plate 208. A side mold 13 is provided on the second support post 209.

[0028] Since different side molds 13 have different installation dimensions and positions, the first adapter plate 208 and the second support column 209 need to be matched with different side molds 13.

[0029] In this embodiment, four sets of side mold devices 2 are provided.

[0030] The bottom of the mold cavity after the side mold 13 is closed is provided with a main flow channel. The main flow channel is matched with the flow channel 1021 provided on the frame mounting base plate 102 to allow liquid metal to flow into the mold cavity.

[0031] like Figure 4 , Figure 6As shown, the top mold device 3 includes a second hydraulic cylinder 301, which is vertically mounted on the top mold mounting plate 103. The output end of the second hydraulic cylinder 301 faces upward, and a second push plate 302 is provided at the output shaft end. The output shaft end of the second hydraulic cylinder 301 is located at the center of the second push plate 302. First mounting posts 303 are provided at the four corners of the second push plate 302. One end of the first mounting post 303 is fixedly mounted on the second push plate 302, and the other end faces downward, with a first fixing plate 304 provided at the end. The first fixed plate 304 has second guide pillars 305 at its four corners. One end of each second guide pillar 305 is fixed to the first fixed plate 304, and the other end is downward-facing and connected to the top plate 103 of the top mold. The other end is fixed to a second fixed plate 307. Several third support pillars 308 are located below the second fixed plate 307. A second transition plate 309 is located at the other end of each third support pillar 308. A fourth support pillar 310 is located below the second transition plate 309. The other end of the fourth support pillar 310 is connected to the top mold 14. When the output axis of the second hydraulic cylinder 301 is pushed upward, the second push plate 302 moves upward, the first fixed plate 304 moves upward, the second guide pillar 305 moves upward, and the top mold 14 at the end of the fourth support pillar 310 moves upward to open the mold. Conversely, when the output axis of the second hydraulic cylinder 301 is retracted downward, the top mold 14 moves downward to close the mold.

[0032] Since the installation dimensions and positions of different top molds 14 are different, the second adapter plate 309 and the fourth support column 310 need to be matched with different top molds 14.

[0033] The side mold 13 and top mold 14 in this embodiment are simplified schematic diagrams, not detailed mold structure diagrams. The device in this embodiment can be equipped with different die-casting molds depending on the different casting products produced. The mold structure is a separate device structure and will not be described in detail here.

[0034] To facilitate better demolding of the casting from the top mold 14, the mold assembly of the top mold 14 is equipped with a relevant demolding template. In this embodiment, a ejector device is also provided to match the demolding template on the top mold 14, such as... Figure 6 As shown, the ejector device includes a third hydraulic cylinder 312 and an ejector flange 313. The third hydraulic cylinder 312 is vertically mounted on the second fixed plate 307. The output shaft passes through the second fixed plate 307 and is provided with an ejector flange 313 at the end of the output shaft. The ejector flange 313 is located above the demolding mold and is used to push the demolding mold to demold the casting product from the top mold 14.

[0035] like Figure 7As shown, the trolley device 5 includes a frame 501. At the four corners of the frame 501, wheel sets 505 are arranged in pairs facing each other. The wheel sets 505 are matched and mounted on the I-beam track 12. A set of wheel connecting shafts 504 passes through each pair of opposing wheel sets 505. A first motor 502 is mounted on one side of the frame 501. A first sprocket 503 is mounted on the output shaft of the first motor 502. A second sprocket 506 is matched with the first sprocket 503 and is located at the end of one of the wheel connecting shafts 504. A chain is wound around the first sprocket 503 and the second sprocket 506. When the first motor 502 is started, the first sprocket 503 rotates, the chain drives the second sprocket 506, and the second sprocket 506 drives the wheel connecting shafts 504 to rotate. The wheel sets 505 mounted on the wheel connecting shafts 504 move forward on the I-beam track 12.

[0036] like Figure 7 As shown, the lifting device 6 includes a fixed base 601, with second mounting posts 602 at the four corners of the fixed base 601. A third fixing plate 603 is provided on the second mounting posts 602, and a fourth hydraulic cylinder 604 is provided on the third fixing plate 603. The output shaft of the fourth hydraulic cylinder 604 passes through the third fixing plate 603 and faces upward. A lifting frame 605 is provided at the end of the output shaft. Third guide posts 606 are provided at the four corners of the lifting frame 605, and the other end of the third guide post 606 passes through the third fixing plate 603.

[0037] like Figure 7 As shown, the resistance melting furnace 4 includes a furnace body 401 and an outlet pipe 402, with the outlet pipe 402 located at the top of the furnace body 401. The resistance melting furnace 4 utilizes electric current to heat the heating elements or heating medium inside the furnace, thereby melting low-melting-point metals. The resistance melting furnace 4 is a mature piece of mechanical equipment and will not be described in detail here. The resistance melting furnace 4 used in this embodiment has a cylindrical cavity structure. The resistance melting furnace 4 is fixedly mounted on the trolley device 5.

[0038] like Figure 8 As shown, the first motor 502 drives the trolley device 5 to move the resistance melting furnace 4 to below the mold mounting frame 1, with the outlet pipe 402 of the resistance melting furnace 4 located directly below the inlet pipe 104. The trolley device 5 stops running and is positioned directly above the lifting device 6. The lifting device 6 starts running, and the output shaft of the four hydraulic cylinders 604 lifts, causing the lifting frame 605 to rise upwards. The lifting frame 605 lifts the trolley device 5, connecting the outlet pipe 402 of the resistance melting furnace 4 on the trolley device 5 to the inlet pipe 104. Conversely, the output shaft of the four hydraulic cylinders 604 retracts, the lifting frame 605 lowers, and the trolley device 5 falls back, disengaging the outlet pipe 402 of the resistance melting furnace 4 on the trolley device 5 from the inlet pipe 104.

[0039] like Figure 4As shown, the cantilever material handling device 7 includes a support 701, which is mounted on the support leg of the mold mounting frame 1. A second motor 702 is vertically mounted on the support 701. A first gear 703 is mounted on the output shaft end of the second motor 702. A vertical rotating shaft 704 is mounted on the side of the second motor 702. A second gear 705 is mounted on the shaft end of the rotating shaft 704. The second gear 705 meshes with the first gear 703. A rotating shaft sleeve 706 is fitted on the rotating shaft 704. A material receiving cantilever 707 is mounted on the rotating shaft sleeve 706. The initial position of the receiving cantilever 707 is between the two support legs of the mold mounting frame 1. After the casting product is opened, the second motor 702 starts, and the first gear 703 and the second gear 705 mesh and rotate. The rotating shaft 704 drives the receiving cantilever 707 to rotate to receive the material below the top mold 14. After receiving the material, the first gear 703 and the second gear 705 mesh and rotate, and the rotating shaft 704 drives the receiving cantilever 707 to rotate the casting product out of the mold mounting frame 1 and rotate it to below the clamping device 8. A soft pad 708 is also provided at the material receiving end of the receiving cantilever 707 for shock absorption and cushioning.

[0040] like Figure 9 As shown, the clamping device 8 includes a mounting base 801. The top of the mounting base 801 is a rectangular frame structure, and a set of support legs is provided at each of the four corners. A first linear guide rail 802 is provided on each of the long crossbeams of the mounting base 801. A clamping claw assembly is slidably mounted on the first linear guide rail 802. A first pushing assembly is fixedly mounted on a short crossbeam on one side of the mounting base 801. The first pushing assembly is fixedly mounted with the clamping claw assembly and is used to control the position of the clamping claw assembly on the mounting base 801. The gripper assembly includes a gripper mounting frame 803, a second linear guide rail 804, a gripper assembly 805, and a second pushing assembly. The gripper mounting frame 803 is a rectangular frame structure. The short side beams on both sides are slidably mounted to the first linear guide rail 802. A set of second pushing assemblies is mounted on each of the short side beams on both sides. The two sets of second pushing assemblies are positioned opposite each other in the pushing direction. A set of second linear guide rails 804 is mounted on each of the long side beams on both sides. A set of gripper assemblies 805 is slidably mounted on both ends of the second linear guide rails 804. The two sets of gripper assemblies 805 are positioned opposite each other and are used to grip the casting product. The second pushing assembly is fixedly connected to the gripper assembly 805. The second pushing assembly is used to control the position of the gripper assembly 805. The two sets of pushing assemblies push out or retract relative to each other, which can control the opening and clamping of the gripper assembly 805.

[0041] like Figures 9-11As shown, the gripper assembly 805 includes a sliding seat 8051. The lower ends of both sides of the sliding seat 8051 are slidably disposed with the second linear guide rail 804. A fifth hydraulic cylinder 8052 is vertically disposed in the middle of the upper end of the sliding seat 8051. The output direction of the fifth hydraulic cylinder 8052 is downward. An extension shaft 8057 is disposed at the output shaft end of the fifth hydraulic cylinder 8052. A bushing 8054 is disposed in the middle of the lower end of the sliding seat 8051. A fixed end cover 8055 is disposed on the bottom end face of the bushing 8054. The output shaft of the fifth hydraulic cylinder 8052 and the extension shaft 8057 disposed at the shaft end pass through the bushing 8054. The extension shaft 8057 passes through the fixed end cover 8055. A gripper 8053 is disposed at the shaft end of the extension shaft 8057.

[0042] like Figure 11 As shown, an elongated anti-rotation groove 80571 is provided on the extension shaft 8057, and an anti-rotation block 8056 is provided at the bottom of the fixed end cover 8055. The anti-rotation block 8056 is matched with the size of the anti-rotation groove 80571. The anti-rotation block 8056 is inserted into the anti-rotation groove 80571 to prevent the output shaft from rotating when the fifth hydraulic cylinder 8052 outputs and retracts, which would affect the accuracy of the gripper 8053 in gripping materials.

[0043] like Figure 9 As shown, the second pushing assembly includes a seventh hydraulic cylinder 809, a second fixed seat 810, and a first pushing flange 811. The second fixed seat 810 is fixedly mounted on the middle of the upper part of the short side beams on both sides of the gripper mounting frame 803. The seventh hydraulic cylinder 809 is mounted on the second fixed seat 810, and the first pushing flange 811 is mounted on the output shaft end of the seventh hydraulic cylinder 809. The first pushing flange 811 is fixedly mounted on the sliding seat 8051. The seventh hydraulic cylinder 809 controls the clamping and releasing of the gripper assembly 805 by pushing out and retracting.

[0044] like Figure 9 As shown, the first pushing assembly includes a first fixed base 806, a sixth hydraulic cylinder 807, a first pusher seat 808, and a second pusher flange 812. The first fixed base 806 is fixedly mounted on a long side beam on one side of the gripper mounting frame 803. The sixth hydraulic cylinder 807 is mounted on the first fixed base 806, and the second pusher flange 812 is mounted on the output shaft end of the sixth hydraulic cylinder 807. The first pusher seat 808 is fixedly mounted on a short crossbeam on one side of the mounting base 801, and the second pusher flange 812 is fixedly mounted to the first pusher seat 808. The sixth hydraulic cylinder 807 controls the position of the gripper assembly by extending and retracting.

[0045] like Figure 1 , Figure 12As shown, the product support device 9 is located below the clamping device 8. The product support device 9 includes a support base 901, a third mounting column 902, a fourth fixing plate 903, an eighth hydraulic cylinder 904, a support component fixing plate 905, a fourth guide column 906, and a support flange 907. The support base 901 has three third mounting columns 902 at its four corners, and a fourth fixing plate 903 at the top of the third mounting column 902. The support base 901 has an eighth hydraulic cylinder 904 vertically mounted on it. The output shaft of the eighth hydraulic cylinder 904 passes through the fourth fixing plate 903. The output shaft of the eighth hydraulic cylinder 904 is fixedly mounted on the support component fixing plate 905. The support component fixing plate 905 has four fourth guide columns 906 at its four bottom corners, and the fourth guide columns 906 pass through the fourth fixing plate 903. The upper surface of the support component fixing plate 905 has several support flanges 907, which are used to receive the casting products clamped by the clamping device 8.

[0046] like Figure 12 As shown, a product conveyor line 10 is provided above the product support device 9. The product conveyor line 10 includes electric rollers 1001. The spacing between the electric rollers 1001 above the support flange 907 is greater than the head size of the support flange 907. When the eighth hydraulic cylinder 904 lifts upward, the support flange 907 can pass through the electric rollers 1001 to receive the casting product clamped by the clamping device 8. When the eighth hydraulic cylinder 904 retracts downward, the support flange 907 descends, and its end face height is lower than the height of the electric rollers 1001. The casting product remains on the product conveyor line 10, and the product conveyor line 10 transports the casting product to the next workstation.

[0047] like Figure 1As shown, in this embodiment, the mold closing mechanism is provided in two sets, each set of mold closing mechanism is equipped with two sets of resistance melting furnaces 4. The two sets of resistance melting furnaces 4 alternately supply material to the mold cavity in the mold closing mechanism. The unloading device set between the two sets of mold closing mechanisms automatically transports the casting product to the next workstation. When production starts, the side mold 13 of the die-cast product to be produced is fixedly set on the side mold device 2, and the top mold 14 is fixedly set on the top mold device 3. The operator adds aluminum alloy ingots into the four sets of resistance melting furnaces 4, and the aluminum alloy ingots are melted in the resistance melting furnaces. When the mold closes, the first hydraulic cylinder 202 on the side mold device 2 pushes out, and the two opposite side molds 13 close. The second hydraulic cylinder 301 on the top mold device 3 outputs the shaft and retracts downward, and the top mold 14 closes downward. The trolley device 5 moves the resistance melting furnace 4 to below the mold mounting frame 1. The outlet pipe 402 of the resistance melting furnace 4 is located directly below the inlet pipe 104. The trolley device 5 stops operating and is positioned directly above the lifting device 6. The lifting device 6 starts operating, and the output shaft of the four hydraulic cylinders 604 lifts, causing the lifting frame 605 to rise upwards. The lifting frame 605 lifts the trolley device 5, connecting the outlet pipe 402 of the resistance melting furnace 4 on the trolley device 5 with the inlet pipe 104. The molten metal in the resistance melting furnace 4 flows out from the outlet pipe 402 and enters the mold cavity after mold closing through the inlet pipe 104. The molten metal enters the mold cavity and is pressurized for molding. The output shaft of the four hydraulic cylinders 604 retracts, the lifting frame 605 lowers, the trolley device 5 falls back, and the outlet pipe 402 of the resistance melting furnace 4 disengages from the inlet pipe 104. When the mold opens, the first hydraulic cylinder 202 on the side mold device 2 retracts, the two opposing side molds 13 separate, the output shaft of the second hydraulic cylinder 301 on the top mold device 3 pushes the top mold 14 upward with the casting product, the cantilever material handling device 7 starts, the second motor 702 drives the first gear 703 and the second gear 705 to mesh and rotate, and the receiving cantilever 707 rotates to the bottom of the top mold 14 to wait for material to be received; the ejector device on the top mold device 3 starts, the output shaft of the third hydraulic cylinder 312 pushes out, the ejector flange 313 pushes the demolding plate on the top mold 14 to remove the casting product from the cavity of the top mold 14, and the casting product falls onto the receiving cantilever 707 after demolding. After receiving the material, the first gear 703 and the second gear 705 mesh and rotate, and the rotating shaft 704 drives the receiving cantilever 707 to rotate the casting product out of the mold mounting frame 1 and rotate it to the bottom of the clamping device 8.The first pushing component is activated, the output shaft of the sixth hydraulic cylinder 807 extends, pushing the clamping jaw assembly above the casting product. The output shaft of the fifth hydraulic cylinder 8052 on the clamping jaw assembly 805 extends downward, and the clamping jaw 8053 descends. The second pushing component is activated, the output shaft of the seventh hydraulic cylinder 809 extends, and the two sets of clamping jaw assemblies 805 move towards each other. The clamping jaw 8053 clamps the casting product, the output shaft of the fifth hydraulic cylinder 8052 lifts upward, and the casting product held by the clamping jaw 8053 is released from the receiving cantilever 707. The receiving cantilever 707 rotates to the waiting position to continue picking up material; the eighth hydraulic cylinder in the product support device 9... When the output shaft of hydraulic cylinder 904 extends, the support flange 907 rises, and the output shaft of hydraulic cylinder 8052 extends downward. The casting product held by gripper 8053 is placed on the support flange 907. The second pushing component is activated, the output shaft of hydraulic cylinder 809 retracts, and the two sets of gripper assemblies 805 move relative to each other. Gripper 8053 releases the casting product, which falls onto the support flange 907. Gripper assembly 805 returns to the picking position to continue gripping material on receiving cantilever 707. The output shaft of hydraulic cylinder 904 retracts, the support flange 907 descends, and the casting product falls onto product conveyor line 10, which is then transported to the next workstation. The above production process is repeated to automate the production of casting products, improving efficiency, reducing costs, and reducing labor intensity.

Claims

1. An automatic mold opening and closing device and an automatic material unloading device for die casting molds, comprising a mold closing mechanism, a resistance melting furnace conveying mechanism, a material unloading device, and a conveying device, characterized in that: The mold closing mechanism includes a mold mounting frame (1), a side mold device (2) located at the bottom of the mold mounting frame (1), and a top mold device (3) located at the top of the mold mounting frame (1). The side mold devices (2) are arranged opposite each other and their mold closing directions are opposite. The mold closing direction of the top mold device (3) faces the side mold device (2). After the side mold device (2) and the top mold device (3) are closed, a mold cavity is formed. A top mold (14) is provided on the top mold device (3), and an ejector device is provided in match with the top mold (14). The ejector device pushes the top mold (14) to demold the product in the mold cavity. A resistance melting furnace conveying mechanism is provided below the mold closing mechanism. The resistance melting furnace conveying mechanism includes an I-beam track (12), and a set of trolley devices (5) are provided at each end of the I-beam track (12). The resistance melting furnace (4) is provided on the trolley device (5). The trolley device (5) is a motor sprocket drive mechanism. The trolley device (5) runs alternately on the I-beam track (12). A lifting device (6) is also provided below the conveying mechanism of the resistance melting furnace. The lifting device (6) lifts the resistance melting furnace (4) so ​​that the port of the resistance melting furnace (4) matches and connects with the mold cavity. Two sets of mold closing mechanisms are arranged side by side. The resistance melting furnace conveying mechanism and the lifting device (6) are also matched. A material unloading device is set between the mold closing mechanisms. The material unloading device includes a cantilever material picking device (7) and a clamping device (8). The cantilever material picking device (7) is set on the mold mounting frame (1). The clamping device (8) is set between the two sets of mold closing mechanisms. The cantilever material picking device (7) rotates to the bottom of the top mold device (3) to receive the casting product after demolding, and rotates the received casting product to the bottom of the clamping device (8). The clamping device (8) clamps the casting product and places it on the conveying device. The conveying device includes a product support device (9) and a product conveying line (10). The product support device (9) is located below the clamping device (8), and the product conveying line (10) is located above the product support device (9).

2. The automatic mold opening and closing device and automatic material unloading device for die casting molds according to claim 1, characterized in that: The side mold device (2) includes a side mold base (201), on which a first hydraulic cylinder (202) is provided. The output direction of the first hydraulic cylinder (202) is horizontally pushed out, and a first push plate (204) is provided at the output shaft end of the first hydraulic cylinder (202). A first guide post (203) is provided at the four corners of the first push plate (204). One end of the first guide post (203) is fixedly provided on the first push plate (204), and the other end passes through the side mold base (201) to provide a first mounting plate (206). A first support post (207) is provided on the first mounting plate (206). A first adapter plate (208) is provided on the first support post (207). A second support post (209) is provided on the first adapter plate (208). A side mold (13) is provided on the second support post (209).

3. The automatic mold opening and closing device and automatic material unloading device for die casting molds according to claim 1, characterized in that: The top mold device (3) includes a second hydraulic cylinder (301), a second push plate (302) is provided at the output shaft end of the second hydraulic cylinder (301), a first mounting post (303) is provided at the four corners of the second push plate (302), one end of the first mounting post (303) is fixedly provided on the second push plate (302), and the other end is provided with a first fixing plate (304). A second guide post (305) is provided at the four corners of the first fixing plate (304), one end of the second guide post (305) is fixedly provided on the first fixing plate (304), and the other end is fixedly provided with a second fixing plate (307). A third support post (308) is provided below the second fixing plate (307), a second adapter plate (309) is provided at the other end of the third support post (308), a fourth support post (310) is provided below the second adapter plate (309), and a top mold (14) is provided at the other end of the fourth support post (310).

4. The automatic mold opening and closing device and automatic material unloading device for die casting molds according to claim 3, characterized in that: The top mold (14) is equipped with a material ejection device, which includes a third hydraulic cylinder (312) and a material ejection flange (313). The third hydraulic cylinder (312) is mounted on the second fixed plate (307), and the output shaft passes through the second fixed plate (307). The output shaft end of the third hydraulic cylinder (312) is equipped with a material ejection flange (313).

5. The automatic mold opening and closing device and automatic material unloading device for die casting molds according to claim 1, characterized in that: The lifting device (6) includes a fixed base (601), with second mounting columns (602) at the four corners of the fixed base (601), a third fixing plate (603) on the second mounting columns (602), a fourth hydraulic cylinder (604) on the third fixing plate (603), the output shaft of the fourth hydraulic cylinder (604) passing through the third fixing plate (603) and facing upward, a lifting frame (605) at the end of the output shaft, and third guide columns (606) at the four corners of the lifting frame (605), with the other end of the third guide column (606) passing through the third fixing plate (603).

6. The automatic mold opening and closing device and automatic material unloading device for die casting molds according to claim 1, characterized in that: The cantilever material handling device (7) includes a support (701), which is mounted on the mold mounting frame (1). A second motor (702) is vertically mounted on the support (701). A first gear (703) is mounted on the output shaft end of the second motor (702). A vertical rotating shaft (704) is mounted on the side of the second motor (702). A second gear (705) is mounted on the shaft end of the rotating shaft (704). The second gear (705) meshes with the first gear (703). A rotating bushing (706) is sleeved on the rotating shaft (704). A material receiving cantilever (707) is mounted on the rotating bushing (706).

7. The automatic mold opening and closing device and automatic material unloading device for die casting molds according to claim 1, characterized in that: The clamping device (8) includes a mounting base (801), on which a clamping claw assembly is slidably disposed. A first pushing assembly is matched with the clamping claw assembly and disposed on the mounting base (801) to push the clamping claw assembly to move.

8. The automatic mold opening and closing device and automatic material unloading device for die casting molds according to claim 7, characterized in that: The gripper assembly includes a gripper mounting frame (803), on which two sets of gripper assemblies (805) are slidably disposed. The two sets of gripper assemblies (805) are disposed opposite to each other. The two sets of gripper assemblies (805) are matched with a second pushing component, which is disposed on the gripper mounting frame (803) to push the two sets of gripper assemblies (805) to move relative to each other and towards each other.

9. The automatic mold opening and closing device and automatic material unloading device for die casting molds according to claim 8, characterized in that: The gripper assembly (805) includes a sliding seat (8051), which is slidably disposed with the gripper mounting bracket (803). A fifth hydraulic cylinder (8052) is vertically disposed in the middle of the upper end face of the sliding seat (8051). The output shaft of the fifth hydraulic cylinder (8052) passes through the sliding seat (8051). An extension shaft (8057) is disposed at the output shaft end of the fifth hydraulic cylinder (8052), and a gripper (8053) is disposed at the shaft end of the extension shaft (8057).

10. The automatic mold opening and closing device and automatic material unloading device for die casting molds according to claim 9, characterized in that: A bushing (8054) is provided in the middle of the lower end face of the sliding seat (8051). The bushing (8054) is sleeved on the outside of the extension shaft (8057). A fixed end cap (8055) is provided on the bottom end face of the bushing (8054). The shaft end of the extension shaft (8057) passes through the fixed end cap (8055). An elongated anti-rotation groove (80571) is provided on the extension shaft (8057). An anti-rotation block (8056) is provided at the bottom of the fixed end cap (8055). The anti-rotation block (8056) is matched with the size of the anti-rotation groove (80571). The anti-rotation block (8056) is inserted into the anti-rotation groove (80571).

Images