A motor end cover die-casting device

Abstract

The present invention relates to the field of die-casting technology, and specifically to a motor end cover die-casting forming device, comprising a device frame, a fixed mold fixedly installed on the left part of the device frame, an ejector rod provided on the fixed mold for sliding left and right, a movable mold provided on the right part of the device frame for sliding left and right, a pressurizing push rod and a feeding pipe provided on the upper part of the device frame through an electric slider, a recycling mechanism for recycling raw materials provided on the movable mold and the fixed mold, and a conveying mechanism for conveying the end cover provided on the device frame. The present invention adopts a pressurizing push rod to pressurize the molten metal inside the movable mold after the movable mold and the fixed mold are closed, and then the runners on the movable mold and the fixed mold are separated from the die-casting station by a cut-off block before the molten metal cools, so that after the metal cools, the motor end covers in each die-casting station will not be connected together, thereby eliminating the subsequent process of separating the batch die-cast motor end covers, thereby improving the processing efficiency of the motor end covers.

Description

Technical Field

[0001] The invention relates to the technical field of die casting, in particular to a die casting device for a motor end cover. Background Art

[0002] The motor end cover is an important component of the motor. It is usually installed at the end of the motor to protect the internal components of the motor, such as the stator and rotor, from the ingress of external substances such as dust and moisture. Existing motor end covers are mainly made by die-casting.

[0003] Die casting is a metal casting process, typically used to produce small to medium-sized castings with precise dimensions and clear contours. During the die casting process, the metal is first melted and then rapidly injected into a precision-made mold under high pressure. The pressure is maintained until the metal solidifies, after which the casting is removed from the mold.

[0004] Existing devices for die-casting motor end covers usually have multiple die-casting stations on a piece of mold steel in order to be able to die-cast the motor end covers in batches. The multiple die-casting stations are interconnected through the opened flow channels, so that the molten metal can flow to the multiple die-casting stations, thereby performing batch die-casting on the motor end covers.

[0005] However, in the above method, during die-casting, the molten metal inside the runner will be connected with the molten metal inside the die-casting station. After the metal cools, the metal inside the runner becomes one with the formed motor end cover, which requires adding a subsequent process of separating the batch die-cast motor end covers from each other, thereby reducing the processing efficiency of the motor end covers. When the metal material connecting the motor end covers is cut off, material waste is inevitable, thereby increasing the processing cost of the motor end covers. In addition, the existing technology usually uses a robot to remove the die-cast end covers, but the procurement and maintenance costs of the robot are high, and it is not suitable for small-scale factories. Summary of the Invention

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a motor end cover die-casting molding device, including a device frame, a fixed mold is fixedly installed on the left part of the device frame, the fixed mold is slid left and right and is provided with an ejection rod, the right part of the device frame is slid left and right and is provided with a movable mold, the upper part of the device frame is provided with a pressurizing push rod and a feeding pipe through an electric slider, the movable mold and the fixed mold are jointly provided with a recycling mechanism for recycling raw materials, and the device frame is provided with a conveying mechanism for conveying the end cover.

[0007] The recovery mechanism includes a plurality of truncation blocks that are slidably arranged inside the fixed mold. The truncation blocks are arranged in a rectangular shape on the fixed mold. A through groove is provided inside the truncation block. The opening at the right end of the through groove is located on the side of the truncation block facing the center of the fixed mold. The left side of the truncation block is connected to the storage device through a pipeline. A pushing assembly is provided on the left side of the truncation block. A mounting bracket is fixedly installed on the right side surface of the movable mold. An extrusion assembly for extruding the flow channel is provided on the movable mold, and a driving assembly for driving the extrusion assembly is provided on the mounting bracket.

[0008] The conveying mechanism includes a bracket plate that is symmetrical in front and back and fixedly installed on the device frame, a moving frame connected to the bracket plate for sliding forward and backward is symmetrically arranged on the upper and lower left sides of the bracket plate, rotating rollers connected to the bracket plate for rotation are symmetrically arranged on the moving frame, two left and right conveyor belts are wound around the outer sides of the rotating rollers on the same moving frame, a rotating assembly for driving the rotating rollers is arranged on the moving frame on the same bracket plate, a sliding assembly for driving the moving frame is arranged on the device frame, and a direction adjustment assembly for adjusting the direction of the end cover is arranged on the moving frame.

[0009] Preferably, the pushing assembly includes an adjustment plate fixedly installed on the left side of the truncation block, a No. 1 hydraulic cylinder is fixedly installed on the left side wall of the device frame, the telescopic section of the No. 1 hydraulic cylinder is fixedly connected to the adjustment plate, an opening and closing plate is provided inside the truncation block for sliding left and right, a pushing spring is provided between the opening and closing plate and the truncation block, and a pushing column is fixedly installed on the right side of the opening and closing plate.

[0010] Preferably, the extrusion assembly includes a pushing member that is slid left and right on the mounting bracket, a center push rod is fixedly installed at the center position on the left side of the pushing member, the center push rod slides left and right and is inserted into the center position inside the movable mold, and a number of groups of side push rods are arranged inside the movable mold corresponding to the flow channels one by one, and each group of side push rods is composed of a number of side push rods that are equidistantly arranged inside the movable mold along the length direction of the corresponding flow channel. The side push rods are connected to the movable mold for left and right sliding, the right ends of the side push rods in the same group are flush, and the right ends of the side push rods in different groups are staggered left and right.

[0011] Preferably, the driving assembly includes active pushers arranged on the pushing member at equal intervals along the circumference of the central push rod, the active pushers are slidingly connected to the pushing member along the length direction of the corresponding flow channel, the active pushers correspond one-to-one to each group of side push rods, the active pushers are staggered on the left and right sides, a stepped structure is provided on the left side of the active pushers, an inclined surface is provided on the right end of the side push rod, and a power unit for driving the active pushers is provided on the mounting bracket.

[0012] Preferably, the power unit includes a synchronous rotating part rotatably arranged on the right side of the pushing part, and a push-pull plate is hinged on the outside of the synchronous rotating part at equal intervals along its circumference, and the push-pull plate is hinged to the active pushing part at the corresponding position at one end away from the synchronous rotating part, and a rotating sleeve is coaxially fixedly installed on the right side of the synchronous rotating part, and a spiral groove is provided on the rotating sleeve. A No. 2 hydraulic cylinder is fixedly installed on the right side of the mounting bracket, and a movable circular plate is fixedly installed at the telescopic section of the No. 2 hydraulic cylinder, and the movable circular plate slides left and right and is inserted into the inside of the rotating sleeve. A raised column is provided on the outside of the movable circular plate and is slidably connected to the inside of the spiral groove. A coil spring is provided between the movable circular plate and the pushing part, and a No. 3 hydraulic cylinder is fixedly installed on the right side of the device frame, and the telescopic section of the No. 3 hydraulic cylinder is fixedly connected to the mounting bracket.

[0013] Preferably, the rotating assembly includes a connecting plate on the left side of two movable frames fixedly mounted on the same bracket plate, an execution motor is fixedly mounted on the right side of the connecting plate, and the output shaft of the execution motor is connected to two rotating rollers at corresponding upper and lower positions through a belt at the same time.

[0014] Preferably, the sliding assembly includes a fixed support plate fixedly mounted on the right side of the front connecting plate, a guide wheel is rotatably provided on the front side of the front bracket plate, a rope reel is rotatably provided on the front right side of the device frame, the rope reel is fixedly connected to the fixed support plate by passing the guide wheel around the steel wire rope wound thereon, a driven gear is fixedly mounted on the lower part of the rope reel, the diameter of the driven gear is smaller than the diameter of the rope reel, an active rack meshing with the driven gear is fixedly mounted on the front right side of the mounting bracket, a locking part for locking the fixed support plate is provided on the front bracket plate, and a synchronization part for synchronously moving the two connecting plates in opposite directions is provided on the lower part of the device frame.

[0015] Preferably, the locking portion includes an L-shaped locking piece that is slid left and right and is arranged in front of the front bracket plate. The left end of the transverse section of the L-shaped locking piece is provided with an inclined surface that gradually tilts backward from left to right. A tension spring is provided between the longitudinal section of the L-shaped locking piece and the front bracket plate. The tension spring pulls the longitudinal section of the L-shaped locking piece against the right side surface of the movable mold.

[0016] Preferably, the synchronization part includes a sliding rod that slides left and right and is arranged at the lower part of the device frame. A return spring is arranged between the right end of the sliding rod and the device frame. A hinge plate is symmetrically hinged front and back on the left side of the sliding rod, and the end of the hinge plate away from the sliding rod is hinged to the connecting plate at the corresponding position.

[0017] Preferably, the direction adjustment component includes a guide plate fixedly mounted on the upper part of the mobile frame near the middle of the device frame, the side of the guide plate near the middle of the device frame is a structure gradually inclined from left to upward, and the side of the guide plate away from the middle of the device frame is a horizontal structure, a blocking belt is fixedly mounted on the left side of the left conveyor belt, an active push plate is provided on the upper part of the mobile frame near the middle of the device frame for sliding left and right, a compression spring is provided between the active push plate and the mobile frame, and an inclined push plate fixedly connected to the right conveyor belt is provided at equal intervals along its track.

[0018] The beneficial effects of the present invention are:

[0019] 1. The present invention uses a pressurizing push rod to pressurize the molten metal inside the movable mold and the fixed mold after the mold is closed. Then, the cut-off block is used to separate the runners on the movable mold and the fixed mold from the die-casting station before the molten metal cools down. After the metal cools down, the motor end covers in each die-casting station will not be connected together, eliminating the subsequent process of separating the batch die-cast motor end covers, thereby improving the processing efficiency of the motor end covers.

[0020] 2. The present invention uses a driving assembly to drive the extrusion assembly to recover the molten metal inside the flow channel after the cut-off block separates the flow channel from the die-casting station, thereby avoiding metal waste and reducing the processing cost of the motor end cover.

[0021] 3. The present invention adopts a sliding component to automatically drive the movable frame to extend between the movable mold and the fixed mold when the movable mold and the fixed mold are separated from each other, so that the movable frame can drive the conveyor belt to move to the lower part of the die-casting station, so that the conveyor belt can receive and transport the motor end cover after die-casting, without the need for a robot to grab the motor end cover, thereby reducing the cost of procurement and maintenance.

[0022] Fourth, the present invention adopts a direction adjustment component to automatically adjust the direction of the motor end cover when the motor end cover falls onto the conveyor belt, so that one surface of the motor end cover is always facing upward, thereby facilitating subsequent fine processing of the motor end cover and further increasing the processing efficiency of the motor end cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings and examples.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 It is a cross-sectional view of the fixed die, No. 1 hydraulic cylinder, cut-off block, adjustment plate and push column in the present invention.

[0026] Figure 3 It is a partial cross-sectional view of the truncation block, the opening and closing plate and the pushing column in the present invention.

[0027] Figure 4 It is a partial cross-sectional view of the device frame, movable mold, extrusion assembly, drive assembly and mounting bracket in the present invention.

[0028] Figure 5 It is a structural schematic diagram of the movable mold and the mounting bracket in the present invention.

[0029] Figure 6 It is a cross-sectional view of the movable mold, extrusion assembly, mounting bracket and active pusher in the present invention.

[0030] Figure 7 It is a structural diagram of the movable mold and the side push rod in the present invention.

[0031] Figure 8 It is a structural schematic diagram of the pushing member, active pushing member, central pushing rod, synchronous rotating member, push-pull plate, rotating sleeve and movable circular plate in the present invention.

[0032] Figure 9 It is a structural schematic diagram of the active pusher in the present invention.

[0033] Figure 10 It is a structural diagram of the device frame, fixed mold, movable mold, installation bracket and conveying mechanism in the present invention.

[0034] Figure 11 It is a structural diagram of the movable mold, mounting bracket and conveying mechanism in the present invention.

[0035] Figure 12 It is a cross-sectional view of the front support plate, movable frame, rotating roller, conveyor belt, rotating assembly, locking portion and direction adjustment assembly in the present invention.

[0036] Figure 13 It is a cross-sectional view of the movable frame, rotating roller, conveyor belt and direction adjustment component in the present invention.

[0037] Figure 14 It is a cross-sectional view of the pusher, the movable circular plate, the synchronous rotating member and the rotating sleeve in the present invention.

[0038] Figure 15 It is a schematic diagram of the active push member in the present invention pushing the side push rod at the corresponding position.

[0039] In the figure: 1. Device frame; 2. Fixed mold; 3. Moving mold; 4. Pressurizing push rod; 5. Feeding pipe; 6. Recovering mechanism; 7. Transporting mechanism; 11. Electric slide; 22. Ejector rod; 61. Cutting block; 62. Pushing assembly; 63. Extrusion assembly; 64. Driving assembly; 65. Mounting bracket; 71. Bracket plate; 72. Moving frame; 73. Rotating roller; 74. Conveyor belt; 75. Rotating assembly; 76. Sliding assembly; 77. Direction adjustment assembly; 621. Adjusting plate; 622. No. 1 hydraulic cylinder; 623. Opening and closing plate; 624. Pushing column; 632. Pushing member; 633. Center push rod; 634. Side push rod; 64 1. Active pusher; 642. Power unit; 751. Connecting plate; 752. Executive motor; 761. Fixed support plate; 762. Guide wheel; 763. Rope reel; 764. Driven gear; 765. Active rack; 766. Locking unit; 767. Synchronizing unit; 771. Guide plate; 772. Blocking belt; 773. Active pusher; 774. Inclined pusher; 6421. Synchronizing member; 6422. Push-pull plate; 6423. Rotating sleeve; 6424. Moving circular plate; 6425. Hydraulic cylinder No. 3; 6426. Hydraulic cylinder No. 2; 7661. L-shaped locking member; 7671. Sliding rod; 7672. Articulated plate. DETAILED DESCRIPTION

[0040] The following embodiments of the present invention are described in detail. The embodiments described below are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention. Where specific techniques or conditions are not specified in the embodiments, the techniques or conditions described in the literature in the art or in the product specifications shall be followed.

[0041] See Figure 1 A motor end cover die-casting molding device includes a device frame 1, a fixed mold 2 is fixedly installed on the left side of the device frame 1, an ejector rod 22 is provided on the fixed mold 2 for sliding left and right, a movable mold 3 is provided on the right side of the device frame 1 for sliding left and right, a pressurizing push rod 4 and a feeding pipe 5 are provided on the upper part of the device frame 1 through an electric slider 11, a recycling mechanism 6 for recycling raw materials is commonly provided on the movable mold 3 and the fixed mold 2, and a conveying mechanism 7 for conveying the end cover is provided on the device frame 1.

[0042] When the motor end cover needs to be die-cast, the movable mold 3 and the fixed mold 2 are first combined together through the recovery mechanism 6, and then the feed pipe 5 is driven by the electric slider 11 to move to the top of the movable mold 3 and the fixed mold 2, and then the molten metal raw material is injected into the runners of the movable mold 3 and the fixed mold 2 through the feed pipe 5. The molten metal raw material flows to the inside of each die-casting station through the runner, and then the electric slider 11 drives the pressure push rod 4 to move to the top of the movable mold 3 and the fixed mold 2, and extends the telescopic section of the pressure push rod 4 into the movable mold 3 and the fixed mold 2, thereby pressurizing the molten metal inside the die-casting station.

[0043] Then, the die-casting station is separated from the runner by the recovery mechanism 6, and then the recovery mechanism 6 recovers the molten metal inside the runner. After the metal inside the die-casting station cools down, the movable mold 3 is moved to the right by the recovery mechanism 6, so that the movable mold 3 is separated from the fixed mold 2. Then, the conveying mechanism 7 automatically extends between the movable mold 3 and the fixed mold 2, and extends the ejector rod 22 to the right. The ejector rod 22 pushes the die-cast motor end cover onto the conveying mechanism 7, and the motor end cover is transported out through the conveying mechanism 7.

[0044] It should be noted that an electric telescopic rod is fixedly installed on the left side of the device frame 1, and the telescopic section of the electric telescopic rod is fixedly connected to all the ejector rods 22 at the same time. By extending the telescopic section of the electric telescopic rod, the ejector rod 22 can be driven to push the motor end cover.

[0045] See Figure 1 、 Figure 2 and Figure 5 The recovery mechanism 6 includes a plurality of truncation blocks 61 that are slidably arranged inside the fixed mold 2. The truncation blocks 61 are arranged in a rectangular shape on the fixed mold 2. A through groove is provided inside the truncation block 61. The opening at the right end of the through groove is located on the side of the truncation block 61 facing the center of the fixed mold 2. The left side of the truncation block 61 is connected to the storage device through a pipeline, and a pushing component 62 is provided on the left side of the truncation block 61.

[0046] It should be noted that the above-mentioned storage device refers to a container used to store molten metal raw materials in the prior art, such as a melting pot.

[0047] See Figure 1 、 Figure 2 and Figure 3 The pushing assembly 62 includes an adjusting plate 621 fixedly installed on the left side of the truncation block 61. A hydraulic cylinder No. 1 622 is fixedly installed on the left side wall of the device frame 1. The telescopic section of the hydraulic cylinder No. 1 622 is fixedly connected to the adjusting plate 621. An opening and closing plate 623 is provided inside the truncation block 61 for sliding left and right. A pushing spring is provided between the opening and closing plate 623 and the truncation block 61. A pushing column 624 is fixedly installed on the right side of the opening and closing plate 623.

[0048] When the cutting block 61 does not move, the cutting block 61 is completely retracted inside the fixed mold 2, and the fixed mold 2 blocks the through-slot outlet on the cutting block 61, so that the metal raw material cannot flow through the through-slot on the cutting block 61 to the inside of the movable mold 3 and the fixed mold 2, ensuring that when the metal raw material inside the movable mold 3 and the fixed mold 2 is pressurized, the pressure of the metal raw material remains unchanged, and the push spring pushes the opening and closing plate 623 to the right, so that the right side of the opening and closing plate 623 is pressed against the cutting block 61, so that the opening and closing plate 623 closes the through-slot outlet on the cutting block 61, further preventing the pressurized metal raw material from flowing out of the through-slot outlet on the cutting block 61.

[0049] After the pressure push rod 4 pressurizes the metal raw materials inside the movable mold 3 and the fixed mold 2, the telescopic section of the No. 1 hydraulic cylinder 622 is extended to drive the adjustment plate 621 to move to the right, and the adjustment plate 621 drives all the cut-off blocks 61 to move to the right synchronously, so that the right end face of the cut-off block 61 is pressed against the movable mold 3, so that the cut-off block 61 separates the runner and the die-casting station on the movable mold 3 and the fixed mold 2.

[0050] When the movable mold 3 and the fixed mold 2 are just combined together, the movable mold 3 is attached to the right end face of the pushing column 624, but the movable mold 3 does not push the pushing column 624 to move. The movable mold 3 blocks the pushing column 624, so that the pushing column 624 and the opening and closing plate 623 cannot move to the right. As a result, when the cut-off block 61 moves to the right, the opening and closing plate 623 no longer closes the through-groove outlet of the cut-off block 61, and the metal raw material inside the flow channel flows from the through-groove of the cut-off block 61 to the inside of the storage device under the action of pressure.

[0051] See Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 The recovery mechanism 6 also includes a mounting bracket 65 fixedly mounted on the right side of the movable mold 3. The movable mold 3 is provided with an extrusion assembly 63 for extruding the flow channel. The extrusion assembly 63 includes a pusher 632 slidably mounted on the mounting bracket 65. A center push rod 633 is fixedly mounted at the center position on the left side of the pusher 632. The center push rod 633 slides left and right and is inserted into the center position inside the movable mold 3. Several groups of side push rods 634 are arranged inside the movable mold 3 in a one-to-one correspondence with the flow channels. Each group of side push rods 634 is composed of several side push rods 634 arranged at equal intervals inside the movable mold 3 along the length direction of the corresponding flow channel. The side push rods 634 are connected to the movable mold 3 for left and right sliding. The right ends of the side push rods 634 in the same group are flush, and the right ends of the side push rods 634 in different groups are staggered left and right.

[0052] See Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 8 、 Figure 14 and Figure 15 The recovery mechanism 6 also includes a driving assembly 64 for driving the extrusion assembly 63, which is arranged on the mounting bracket 65. The driving assembly 64 includes active pushing members 641 arranged on the pushing member 632 at equal intervals along the circumference of the central push rod 633. The active pushing members 641 are slidingly connected with the pushing member 632 along the length direction of the corresponding flow channel. The active pushing members 641 correspond to each group of side push rods 634 one by one. The active pushing members 641 are staggered on the left and right sides. A stepped structure is provided on the left side of the active pushing member 641. The right end of the side push rod 634 is provided with an inclined surface. A power unit 642 for driving the active pushing member 641 is provided on the mounting bracket 65.

[0053] See Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 8 、 Figure 9 、 Figure 14 and Figure 15 The power unit 642 includes a synchronous rotating member 6421 rotatably arranged on the right side of the push member 632. The outer side of the synchronous rotating member 6421 is hinged with push-pull plates 6422 at equal intervals along its circumference. The push-pull plate 6422 is hinged to the active push member 641 at the corresponding position at one end away from the synchronous rotating member 6421. A rotating sleeve 6423 is coaxially fixedly installed on the right side of the synchronous rotating member 6421. A spiral groove is opened on the rotating sleeve 6423. The right part of the mounting bracket 65 is fixedly mounted with a No. 2 hydraulic cylinder 6 426. A movable circular plate 6424 is fixedly installed at the telescopic section of the No. 2 hydraulic cylinder 6426. The movable circular plate 6424 slides left and right and is inserted into the interior of the rotating sleeve 6423. A raised column is provided on the outer side of the movable circular plate 6424 and is slidably connected to the interior of the spiral groove. A coil spring is provided between the movable circular plate 6424 and the pushing member 632. A No. 3 hydraulic cylinder 6425 is fixedly installed on the right side of the device frame 1. The telescopic section of the No. 3 hydraulic cylinder 6425 is fixedly connected to the mounting bracket 65.

[0054] When the right end face of the cutting block 61 abuts against the movable mold 3, the telescopic section of the No. 2 hydraulic cylinder 6426 is extended to drive the movable circular plate 6424 to move to the left, and the movable circular plate 6424 pushes the pushing member 632 to the left through the coil spring, and the pushing member 632 drives the central push rod 633 to move to the left until its left end face abuts against the fixed mold 2, so that the central push rod 633 blocks and closes the middle part of the flow channel, and through the insertion of the central push rod 633, the metal raw material in the middle of the flow channel is pushed in the direction away from the center of the flow channel, so that the metal raw material flows through the through groove to the inside of the cutting block 61.

[0055] It should be noted that a protruding block is provided on the mounting bracket 65 for preventing the push member 632 from moving to the right. When the center push rod 633 is completely retracted inside the movable mold 3, the push member 632 moves to abut against the protruding block, thereby preventing the pressurized metal raw material from pushing the center push rod 633 to the right, reducing the pressure of the metal raw material and causing the die-casting effect to deteriorate.

[0056] When the center push rod 633 rests on the fixed mold 2, the telescopic section of the No. 2 hydraulic cylinder 6426 continues to extend, causing the movable circular plate 6424 to continue to move to the left. At this time, the pushing member 632 is blocked by the fixed mold 2 through the center push rod 633 and no longer moves to the left, so that the pushing member 632 drives the rotating sleeve 6423 to stop moving left synchronously through the synchronous rotating member 6421. The movable circular plate 6424 that moves left pushes the spiral groove of the rotating sleeve 6423 through the raised column thereon, so that the rotating sleeve 6423 drives the synchronous rotating member 6421 to rotate.

[0057] When the synchronous rotating part 6421 rotates, the push-pull plate 6422 pulls the active push part 641 to move toward the center push rod 633, so that the active push part 641 cooperates with the inclined surface of the side push rod 634 at the corresponding position from the inside to the outside through the stepped structure thereon, so that each group of side push rods 634 moves to the left from the inside to the outside in sequence until it is pressed against the fixed mold 2, and then the side push rods 634 gradually push the metal raw material inside the flow channel to the inside of the cut-off block 61, thereby recovering the metal raw material inside the flow channel.

[0058] It should be noted that a raised plate is provided on the side push rod 634, and a limit plate for blocking the raised plate is provided on the right side surface of the movable mold 3. When the side push rod 634 is completely retracted inside the movable mold 3, the raised plate on the side push rod 634 moves to abut against the limit plate, thereby preventing the pressurized metal raw material from pushing the side push rod 634 to the right, reducing the pressure of the metal raw material and causing the die-casting effect to deteriorate.

[0059] When the metal material cools down, the telescopic section of the No. 3 hydraulic cylinder 6425 is retracted to drive the movable mold 3 to move rightward through the mounting bracket 65, so that the movable mold 3 and the fixed mold 2 are separated from each other.

[0060] See Figure 1 、 Figure 10 、 Figure 11 and Figure 12 The conveying mechanism 7 includes a bracket plate 71 that is symmetrical in front and back and fixedly mounted on the device frame 1. A movable frame 72 that is symmetrically connected to the bracket plate 71 for sliding forward and backward is provided on the left side of the bracket plate 71. Rotating rollers 73 that are symmetrically connected to the movable frame 72 for rotation are provided on the movable frame 72. Two left and right conveyor belts 74 are wound around the outer sides of the rotating rollers 73 on the same movable frame 72. A sliding assembly 76 that drives the movable frame 72 is provided on the device frame 1.

[0061] See Figure 10 、 Figure 11 and Figure 12A rotating assembly 75 for driving the rotating roller 73 is commonly provided on the movable frame 72 on the same bracket plate 71. The rotating assembly 75 includes a connecting plate 751 on the left side of the two movable frames 72 that are commonly fixedly mounted on the same bracket plate 71. An execution motor 752 is fixedly mounted on the right side of the connecting plate 751. The output shaft of the execution motor 752 is connected to the two rotating rollers 73 at the corresponding upper and lower positions at the same time through a belt.

[0062] See Figure 10 、 Figure 11 and Figure 12 The sliding assembly 76 includes a fixed support plate 761 fixedly mounted on the right side of the front connecting plate 751, a guide wheel 762 is rotatably provided on the front side of the front bracket plate 71, and a rope reel 763 is rotatably provided on the front right side of the device frame 1. The rope reel 763 is fixedly connected to the fixed support plate 761 by passing the guide wheel 762 through the steel wire rope wound thereon. A driven gear 764 is fixedly mounted on the lower part of the rope reel 763. The diameter of the driven gear 764 is smaller than the diameter of the rope reel 763. An active rack 765 meshing with the driven gear 764 is fixedly mounted on the front right side of the mounting bracket 65, and a locking portion 766 for locking the fixed support plate 761 is provided on the front bracket plate 71.

[0063] Continue reading Figure 10 、 Figure 11 and Figure 12 The locking portion 766 includes an L-shaped locking piece 7661 that is slidably arranged on the front of the front support plate 71. The left end of the horizontal section of the L-shaped locking piece 7661 is provided with an inclined surface that gradually tilts backward from left to right. A tension spring is provided between the longitudinal section of the L-shaped locking piece 7661 and the front support plate 71. The tension spring pulls the longitudinal section of the L-shaped locking piece 7661 against the right side surface of the movable mold 3.

[0064] Continue reading Figure 10 、 Figure 11 and Figure 12 The sliding assembly 76 also includes a synchronization part 767 arranged at the lower part of the device frame 1 for making the two connecting plates 751 move synchronously in opposite directions. The synchronization part 767 includes a sliding rod 7671 arranged at the lower part of the device frame 1 for sliding left and right. A return spring is provided between the right end of the sliding rod 7671 and the device frame 1. The left side of the sliding rod 7671 is symmetrically hinged with a hinge plate 7672 front and back. The end of the hinge plate 7672 away from the sliding rod 7671 is hinged to the connecting plate 751 at the corresponding position.

[0065] When the movable mold 3 and the fixed mold 2 are combined together, the fixed support plate 761 is located in front of the transverse section of the L-shaped locking member 7661, so that the rearward movement of the fixed support plate 761 is blocked by the transverse section of the L-shaped locking member 7661, so that the fixed support plate 761 drives the front movable frame 72 to be located in front of the movable mold 3 and the fixed mold 2 through the front connecting plate 751. When the front connecting plate 751 moves forward, it pulls the sliding rod 7671 to the left through the hinge plate 7672. When the sliding rod 7671 moves to the left, it drives the right connecting plate 751 to move backward synchronously through the rear hinge plate 7672. The right connecting plate 751 drives the rear movable frame 72 to move, so that the movable frames 72 on the front and rear sides can move in opposite directions synchronously.

[0066] When the movable mold 3 moves to the right, the movable mold 3 pushes the L-shaped locking member 7661 to move to the right synchronously. When the movable mold 3 moves to be completely separated from the fixed mold 2, the L-shaped locking member 7661 moves to the right to the right side of the fixed support plate 761, so that the L-shaped locking member 7661 no longer blocks the fixed support plate 761. At this time, the return spring pulls the sliding rod 7671 to the right, so that the sliding rod 7671 drives the movable frames 72 on both sides to approach each other through the hinge plate 7672, so that the movable frame 72 drives the conveyor belt 74 thereon to move between the movable mold 3 and the fixed mold 2 and is located at the lower part of the die-casting station.

[0067] When the conveyor belt 74 moves to between the movable mold 3 and the fixed mold 2, the execution motor 752 is started to drive the rotating roller 73 at the corresponding position to rotate, and the rotating roller 73 drives the conveyor belt 74 at the corresponding position to rotate. When the conveyor belt 74 starts to rotate, the telescopic section of the electric telescopic rod is extended to drive the ejector rod 22 to move to the right, so that the ejector rod 22 ejects the die-cast machine end cover out of the fixed mold 2, thereby causing the motor end cover to fall onto the conveyor belt 74.

[0068] See Figure 1 、 Figure 4 、 Figure 12 and Figure 13 The conveying mechanism 7 also includes a direction adjustment component 77 arranged on the mobile frame 72 for adjusting the direction of the end cover. The direction adjustment component 77 includes a guide plate 771 fixedly mounted on the upper part of the mobile frame 72 near the middle of the device frame 1. The side of the guide plate 771 near the middle of the device frame 1 is gradually inclined upward from left to right, and the side of the guide plate 771 away from the middle of the device frame 1 is a horizontal structure. A blocking belt 772 is fixedly installed on the left side of the left conveyor belt 74. An active push plate 773 is provided on the upper part of the mobile frame 72 near the middle of the device frame 1 for sliding left and right. A compression spring is provided between the active push plate 773 and the mobile frame 72. The left side of the right conveyor belt 74 is provided with inclined push plates 774 fixedly connected to it at equal intervals along its track.

[0069] When the motor end cover falls from the inside of the fixed mold 2, the motor end cover falls onto the guide plate 771 in a vertical state, and then the conveyor belt 74 rotating on the right side pushes the active push plate 773 to the left through the inclined push plate 774 thereon, so that the active push plate 773 pushes the lower part of the motor end cover to the left, thereby causing the upper part of the motor end cover to tilt to the right, and then causing the motor end cover to tilt onto the position of the guide plate 771 close to the middle of the device frame 1, and the blocking belt 772 on the left conveyor belt 74 prevents the motor end cover from sliding to the outside of the conveyor belt 74, and at the same time, the conveyor belt 74 drives the motor end cover to move gradually along the guide plate 771 away from the middle of the device frame 1, thereby causing the motor end cover to gradually rotate to a horizontal state along the guide plate 771, thereby adjusting the side of the motor end cover close to the fixed mold 2 to an upward state.

[0070] After the motor end cover is moved out of the fixed die 2, the telescopic section of the No. 3 hydraulic cylinder 6425 is extended to move the mounting bracket 65 to the left, driving the movable die 3 and the fixed die 2 to be reassembled together, thereby continuously die-casting the motor end cover. When the mounting bracket 65 moves to the left, the active rack 765 drives the driven gear 764 to rotate, and the driven gear 764 drives the rope reel 763 to accelerate the rotation. The rope reel 763 drives the fixed support plate 761 to move forward to the inclined surface of the L-shaped locking member 7661 by pulling the wire rope, so that the fixed support plate 761 is pushed to the right. L-shaped locking piece 7661, when the fixed support plate 761 moves to the front side of the L-shaped locking piece 7661, the L-shaped locking piece 7661 is pulled by the tension spring to block the rear part of the fixed support plate 761 again, thereby fixing the position of the fixed support plate 761. At this time, the fixed support plate 761 drives the front movable frame 72 to move to the front of the movable mold 3 and the fixed mold 2 through the front connecting plate 751, and at the same time, the rear movable frame 72 moves to the rear of the movable mold 3 and the fixed mold 2, thereby preventing the movable frame 72 from obstructing the closing of the movable mold 3 and the fixed mold 2.

[0071] The present invention comprises the following steps when die-casting the motor end cover:

[0072] In the first step, the telescopic section of the No. 3 hydraulic cylinder 6425 is extended to drive the movable mold 3 and the fixed mold 2 to be combined together by moving the mounting bracket 65 to the left. Then, the molten metal raw material is injected into the flow channel of the movable mold 3 and the fixed mold 2 through the feeding pipe 5, and then the telescopic section of the pressure push rod 4 is extended to the inside of the movable mold 3 and the fixed mold 2, thereby pressurizing the molten metal inside the die-casting station.

[0073] In the second step, the telescopic section of the No. 1 hydraulic cylinder 622 is extended to drive the right end face of the cut-off block 61 to press against the movable mold 3, so that the cut-off block 61 separates the movable mold 3 from the runner and the die-casting station on the fixed mold 2. The telescopic section of the No. 2 hydraulic cylinder 6426 is extended to drive the left end face of the center push rod 633 to press against the fixed mold 2. The telescopic section of the No. 2 hydraulic cylinder 6426 is continued to be extended, so that the active push member 641 drives the side push rod 634 to push the metal raw materials inside the runner into the inside of the cut-off block 61 in turn, thereby recovering the metal raw materials inside the runner.

[0074] In the third step, the telescopic section of the No. 3 hydraulic cylinder 6425 is retracted to drive the movable mold 3 to move to the right through the mounting bracket 65, so that the movable mold 3 and the fixed mold 2 are separated from each other. The movable mold 3 drives the movable frame 72 by pushing the L-shaped locking member 7661, driving the conveyor belt 74 thereon to move to between the movable mold 3 and the fixed mold 2 and to the lower part of the die-casting station.

[0075] In the fourth step, the execution motor 752 is started to drive the conveyor belt 74 to rotate, and the telescopic section of the electric telescopic rod is extended to drive the ejection rod 22 to move to the right, so that the motor end cover falls onto the guide plate 771, and the conveyor belt 74 pushes the motor end cover to fall onto the guide plate 771 near the middle of the device frame 1 through the active push plate 773, thereby adjusting the side of the motor end cover close to the fixed mold 2 to an upward state.

[0076] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention, which are still covered by the scope of protection of the present invention.

Claims

1. A motor end cover die-casting device, comprising a device frame, a fixed die fixedly mounted on the left side of the device frame, an ejector rod sliding left and right on the fixed die, a movable die sliding left and right on the right side of the device frame, a pressurizing push rod and a feed pipe arranged on the upper part of the device frame through an electric slider, characterized in that: The movable mold and the fixed mold are both provided with a recycling mechanism for recycling raw materials, and the device frame is provided with a conveying mechanism for conveying the end cover; The recovery mechanism includes a plurality of truncation blocks that are slidably arranged inside the fixed mold. The truncation blocks are arranged in a rectangular shape on the fixed mold. A through slot is opened inside the truncation block. The opening at the right end of the through slot is located on the side of the truncation block facing the center of the fixed mold. A pushing assembly is provided on the left side of the truncation block. A mounting bracket is fixedly installed on the right side of the movable mold. An extrusion assembly for extruding the flow channel is provided on the movable mold, and a driving assembly for driving the extrusion assembly is provided on the mounting bracket. The conveying mechanism includes a bracket plate that is symmetrical in front and back and fixedly mounted on the device frame, a mobile frame connected to the bracket plate for sliding forward and backward is symmetrically arranged on the left side of the bracket plate, rotating rollers connected to the bracket plate for rotation are symmetrically arranged on the movable frame, two left and right conveyor belts are wound around the outer sides of the rotating rollers on the same movable frame, a rotating assembly for driving the rotating rollers is arranged on the movable frame on the same bracket plate, a sliding assembly for driving the movable frame is arranged on the device frame, and a direction adjustment assembly for adjusting the direction of the end cover is arranged on the movable frame; The extrusion assembly includes a pusher that is slidably mounted on a mounting bracket, a center push rod is fixedly mounted at the center position on the left side of the pusher, the center push rod slides left and right and is inserted into the center position inside the movable mold, a plurality of groups of side push rods are arranged inside the movable mold corresponding to the flow channels, each group of side push rods is composed of a plurality of side push rods that are equidistantly arranged inside the movable mold along the length direction of the corresponding flow channel, the side push rods are connected to the movable mold for left and right sliding, the right ends of the side push rods in the same group are flush, and the right ends of the side push rods in different groups are staggered left and right; The driving assembly includes active pushers arranged on the pusher at equal intervals along the circumference of the central push rod, the left and right sides of the active pushers are staggered, a stepped structure is provided on the left side of the active pushers, and a slope is provided on the right end of the side push rod.

2. The motor end cover die-casting device according to claim 1, characterized in that: The pushing assembly includes an adjusting plate fixedly installed on the left side of the truncation block, a No. 1 hydraulic cylinder fixedly installed on the left side wall of the device frame, the telescopic section of the No. 1 hydraulic cylinder is fixedly connected to the adjusting plate, an opening and closing plate is provided inside the truncation block for sliding left and right, a pushing spring is provided between the opening and closing plate and the truncation block, and a pushing column is fixedly installed on the right side of the opening and closing plate.

3. The motor end cover die-casting device according to claim 1, characterized in that: The active pusher is slidably connected to the pusher along the length direction of the corresponding flow channel. The active pusher corresponds to each group of side push rods one by one. A power part that drives the active pusher is provided on the mounting bracket.

4. The motor end cover die-casting device according to claim 3, characterized in that: The power unit includes a synchronous rotating part rotatably arranged on the right side of the pushing part, and a push-pull plate is hinged at equal intervals along the circumference of the outer side of the synchronous rotating part, and the push-pull plate is hinged to the active pushing part at the corresponding position at one end away from the synchronous rotating part. A rotating sleeve is coaxially fixedly installed on the right side of the synchronous rotating part, and a spiral groove is provided on the rotating sleeve. A No. 2 hydraulic cylinder is fixedly installed on the right side of the mounting bracket, and a movable circular plate is fixedly installed at the telescopic section of the No. 2 hydraulic cylinder. The movable circular plate slides left and right and is inserted into the interior of the rotating sleeve. A raised column is provided on the outer side of the movable circular plate and is slidably connected to the interior of the spiral groove. A coil spring is provided between the movable circular plate and the pushing part, and a No. 3 hydraulic cylinder is fixedly installed on the right side of the device frame, and the telescopic section of the No. 3 hydraulic cylinder is fixedly connected to the mounting bracket.

5. The motor end cover die-casting device according to claim 1, characterized in that: The rotating assembly includes a connecting plate on the left side of two movable frames fixedly mounted on the same bracket plate, an execution motor is fixedly mounted on the right side of the connecting plate, and the output shaft of the execution motor is connected to two rotating rollers at corresponding upper and lower positions through a belt.

6. The motor end cover die-casting device according to claim 5, characterized in that: The sliding assembly includes a fixed support plate fixedly installed on the right side of the front connecting plate, a guide wheel is rotatably provided on the front side of the front bracket plate, a rope reel is rotatably provided on the front right side of the device frame, the rope reel is fixedly connected to the fixed support plate by passing the guide wheel around the steel wire rope wound thereon, a driven gear is fixedly installed on the lower part of the rope reel, the diameter of the driven gear is smaller than the diameter of the rope reel, an active rack meshing with the driven gear is fixedly installed on the front right side of the mounting bracket, a locking part for locking the fixed support plate is provided on the front bracket plate, and a synchronization part for synchronously moving the two connecting plates in opposite directions is provided at the lower part of the device frame.

7. The motor end cover die-casting device according to claim 6, characterized in that: The locking portion includes an L-shaped locking piece that is slid left and right and is arranged in front of the front bracket plate. The left end of the transverse section of the L-shaped locking piece is provided with an inclined surface that gradually tilts backward from left to right. A tension spring is provided between the longitudinal section of the L-shaped locking piece and the front bracket plate. The tension spring pulls the longitudinal section of the L-shaped locking piece against the right side surface of the movable mold.

8. The motor end cover die-casting device according to claim 6, characterized in that: The synchronization part includes a sliding rod that slides left and right and is arranged at the lower part of the device frame. A return spring is arranged between the right end of the sliding rod and the device frame. A hinge plate is symmetrically hinged to the front and back of the left side of the sliding rod. The end of the hinge plate away from the sliding rod is hinged to the connecting plate at the corresponding position.

9. The motor end cover die-casting device according to claim 1, characterized in that: The direction adjustment assembly includes a guide plate fixedly mounted on the upper part of the mobile frame near the middle of the device frame. The side of the guide plate near the middle of the device frame is a structure gradually inclined upward from left to right, and the side of the guide plate away from the middle of the device frame is a horizontal structure. A blocking belt is fixedly mounted on the left side of the left conveyor belt. An active push plate is provided on the upper part of the mobile frame near the middle of the device frame for sliding left and right. A compression spring is provided between the active push plate and the mobile frame. An inclined push plate fixedly connected to the right conveyor belt is provided at equal intervals along its track.

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