Low-pressure casting machine

Abstract

The utility model discloses a low-pressure casting machine which comprises a machine frame, a crucible is arranged at the lower end of the machine frame, a working platform is arranged at the upper end of the crucible, a lower die is installed on the working platform, an upper die matched with the lower die to form a casting cavity is arranged at the upper end of the lower die, and the crucible is communicated with the casting cavity through a liquid rising pipe. The upper end of the upper mold is connected with a mold closing mechanism used for controlling the upper mold to move vertically, a product conveying line is arranged at the position, at the side end of the crucible, of the rack, and the rack is further provided with a movable grabbing device used for moving a cast workpiece to the product conveying line. A cooling device used for cooling the workpieces is arranged at the front end of the product conveying line.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy casting, in particular to a low-pressure casting machine. Background Art

[0002] Low-pressure casting machine is a general equipment for low-pressure casting of aluminum alloys. It can be widely used in the production of aluminum alloy castings in the automobile, motorcycle, instrumentation, textile machinery and aerospace industries. The low-pressure casting machine allows the liquid alloy to fill the cavity from bottom to top under relatively low pressure. Therefore, the liquid flow and air flow are in the same direction and stable, making the molded casting dense, with smaller surface pores and less slag inclusion. Therefore, low-pressure casting machine is widely used in the casting of many important aluminum alloy molds.

[0003] However, in the prior art, it is inconvenient to remove the aluminum alloy workpiece after it is formed, which greatly reduces the work efficiency. In response to the above problems, some improvements have been proposed in the prior art. For example, the Chinese patent with authorization announcement number CN 210615083U discloses a low-pressure casting machine, including a frame, a driving device and a connecting plate, the driving device is arranged on the upper surface of the frame, the connecting plate is located at one end in the length direction of the driving device, and the connecting plate is located in the inner cavity of the frame, characterized in that: a plurality of placement grooves are provided on the upper surface of the connecting plate, and a pushing member is provided in the placement groove; a through hole is provided on the surface of the connecting plate along its thickness direction, the through hole is located at the placement groove, and the output shaft of the pushing member is located in the through hole. Although the low-pressure casting machine can facilitate demolding, it can only be demolded in situ, and the product must be manually moved, which is relatively inconvenient. Utility Model Content

[0004] Purpose of the utility model:

[0005] In order to overcome the problems existing in the prior art, the utility model provides a low-pressure casting machine, which grabs the formed products to the production line through a mobile grabbing device, and then cools and transports the products through cooling devices on both sides of the production line, thereby improving production efficiency and reducing labor costs.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions:

[0007] A low-pressure casting machine comprises a frame, a crucible is provided at the lower end of the frame, a working platform is provided at the upper end of the crucible, a lower mold is installed on the working platform, an upper mold is provided at the upper end of the lower mold for cooperating with the lower mold to form a casting cavity, the crucible and the casting cavity are connected through a riser pipe, the upper end of the upper mold is connected to a clamping mechanism for controlling the vertical movement of the upper mold, a product conveying line is provided at the side end of the crucible of the frame, and a mobile grasping device for moving the casted workpiece to the product conveying line is provided, and a cooling device for cooling the workpiece is provided at the front end of the product conveying line.

[0008] Preferably, the mold clamping mechanism includes a top fixing plate, a cylinder is mounted on the top fixing plate, a cylinder shaft is provided downwardly of the cylinder, and the cylinder shaft is fixedly connected to the upper mold.

[0009] Preferably, the top fixed plate and the working platform are connected via a support rod, a sliding rod is further provided between the top fixed plate and the working platform, and an opening is provided on the edge of the upper mold for sliding connection with the sliding rod.

[0010] Preferably, the mobile grasping device includes a grasping assembly and a conveying assembly, the conveying assembly includes two parallel slide rails and a screw rod arranged between the two slide rails, the screw rod is connected to a conveying motor, the grasping assembly includes a mounting seat threadedly connected to the screw rod and slidably connected to the slide rail, the mounting seat is provided with a mounting plate extending downward, the upper end of the mounting plate is provided with a grasping control motor, the grasping control motor is provided with a telescopic rod downward, the telescopic rod is connected to a vacuum suction cup, and the vacuum suction cup is connected to an air pump.

[0011] Preferably, the product conveying line includes a first conveying line and a second conveying line arranged in sequence along the conveying direction.

[0012] Preferably, the cooling device includes multiple air outlets arranged on both sides of the product conveying line, and the air outlets are connected to air coolers.

[0013] Preferably, the cooling devices are arranged on both sides of the first conveyor line.

[0014] Beneficial effects: Compared with the prior art, the utility model has the following advantages:

[0015] The formed products are grabbed by a mobile grabbing device and brought to the production line, and then cooled and transported by cooling devices on both sides of the production line, which improves production efficiency and reduces labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional Figure 1 ;

[0017] Figure 2 This is a three-dimensional Figure 2 ;

[0018] Figure 3 This is a three-dimensional Figure 3 ;

[0019] Figure 4 This is a three-dimensional Figure 4 ;

[0020] Description of the figure mark:

[0021] 1. Frame; 2. Crucible; 3. Working platform; 4. Lower mold; 5. Upper mold; 6. Lifting pipe; 7. Clamping mechanism; 71. Top fixing plate; 72. Cylinder; 73. Cylinder shaft; 74. Slide rod; 8. Product conveyor line; 81. First conveyor line; 82. Second conveyor line; 9. Mobile gripping device; 91. Grabbing assembly; 911. Mounting seat; 912. Mounting plate; 913. Grabbing control motor; 914. Telescopic rod; 915. Vacuum suction cup; 92. Conveying assembly; 921. Slide rail; 922. Screw rod; 923. Conveying motor; 10. Air outlet. DETAILED DESCRIPTION

[0022] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0023] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or similar features. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-4As shown, a low-pressure casting machine includes a frame 1, a crucible 2 is provided at the lower end of the frame 1, a working platform 3 is provided at the upper end of the crucible 2, a lower mold 4 is installed on the working platform 3, and an upper end of the lower mold 4 is provided with an upper mold 5 that cooperates with the lower mold 4 to form a casting cavity. The crucible 2 and the casting cavity are connected through a riser pipe 6, and the upper end of the upper mold 5 is connected to a clamping mechanism 7 for controlling the vertical movement of the upper mold. The frame 1 is provided with a product conveying line 8 at the side end of the crucible 2, and is also provided with a mobile grabbing device 9 for moving the casted workpiece to the product conveying line 8. The front end of the product conveying line 8 is provided with a cooling device for cooling the workpiece, and the molded product is grabbed to the production line by the mobile grabbing device, and then the product is cooled and conveyed by the cooling devices on both sides of the production line, thereby improving production efficiency and reducing labor costs.

[0026] In this embodiment, the clamping mechanism 7 includes a top fixing plate 71, on which a cylinder 72 is installed. The cylinder 72 is provided with a cylinder shaft 73 downwardly, and the cylinder shaft 73 is fixedly connected to the upper mold 5. The cylinder 72 drives the upper mold to move vertically to complete the fixation and disassembly between the upper mold and the lower mold.

[0027] In this embodiment, the top fixed plate 71 is connected to the working platform 3 through a support rod 11. A sliding rod 74 is also provided between the top fixed plate 71 and the working platform 3. The edge of the upper mold 5 is provided with an opening that is slidably connected to the sliding rod 74. This structure improves the stability of the upper mold during the rising and falling process, and can reduce the horizontal movement of the upper mold caused by the vibration of the cylinder shaft 72.

[0028] In this embodiment, the mobile grasping device 9 includes a grasping component 91 and a conveying component 92. The conveying component 92 includes two parallel slide rails 921 and a screw rod 922 arranged between the two slide rails. The screw rod 922 is connected to a conveying motor 923. The grasping component 91 includes a mounting seat 911 threadedly connected to the screw rod 922 and slidably connected to the slide rail 921. The mounting seat 911 extends downwardly and is provided with a mounting plate 912. The upper end of the mounting plate 912 is provided with a grasping control motor 913. The grasping control motor 913 is provided with a telescopic rod 914 downwardly. The telescopic rod 914 is connected to a vacuum suction cup 915. The vacuum suction cup 915 is connected to an air pump. The screw rod is driven to rotate by the conveying motor 923, thereby driving the mounting seat to move along the length direction of the screw rod. The grasping control motor 913 controls the vacuum suction cup 915 to move vertically, and the air pump controls the vacuum suction cup to suck and release the workpiece.

[0029] In this embodiment, the product conveyor line 8 includes a first conveyor line 81 and a second conveyor line 82 arranged in sequence along the conveying direction. This structure enables the first conveyor line 81 and the second conveyor line 82 to work separately. When the second conveyor line conveys the workpiece, the first conveyor line can remain in a stationary state to continuously cool the workpiece.

[0030] In this embodiment, the cooling device includes multiple air outlets 10 arranged on both sides of the product conveying line 8, and the air outlets are connected to air coolers.

[0031] In this embodiment, the cooling devices are provided on both sides of the first conveyor line 81 to cool down both sides of the workpiece simultaneously.

[0032] Working principle: After the workpiece is formed, the oil cylinder 72 drives the upper mold to rise, the conveying motor 923 controls the grabbing assembly to move above the workpiece, the grabbing control motor controls the vacuum suction cup 915 to descend to the workpiece and fit the upper end of the workpiece, the air pump controls the vacuum suction cup to adsorb the workpiece, and after the adsorption is completed, the grabbing control motor drives the workpiece to rise, and then the conveying motor 923 drives the workpiece to move above the first conveyor line, the grabbing control motor drives the workpiece to descend to the first conveyor line, at this time the first conveyor line remains stopped, the air pump controls the vacuum suction cup to release the workpiece to complete the entire conveying process, the cooling devices on both sides of the first conveyor line cool the workpiece on the first conveyor line, and after the cooling is completed, the first conveyor line opens to transport the workpiece to the second conveyor line.

[0033] The purpose of the above embodiments is to exemplify and deduce the technical solution of the utility model, and to fully describe the technical solution, purpose and effect of the utility model. Its purpose is to enable the public to have a more thorough and comprehensive understanding of the disclosed content of the utility model, and it does not limit the scope of protection of the utility model.

[0034] The above embodiments are not exhaustive of the present invention, and there may be many other embodiments not listed. Any replacements and improvements made without violating the concept of the present invention are within the scope of protection of the present invention.

Claims

1. A low-pressure casting machine, characterized in that: The invention comprises a frame (1), wherein a crucible (2) is provided at the lower end of the frame (1), a working platform (3) is provided at the upper end of the crucible (2), a lower mold (4) is installed on the working platform (3), an upper mold (5) is provided at the upper end of the lower mold (4) and cooperates with the lower mold (4) to form a casting cavity, the crucible (2) and the casting cavity are connected through a liquid riser (6), the upper end of the upper mold (5) is connected to a clamping mechanism (7) for controlling the vertical movement of the upper mold, the frame (1) is provided with a product conveying line (8) at the side end of the crucible (2), and is also provided with a mobile grabbing device (9) for moving the workpiece after casting to the product conveying line (8), and a cooling device for cooling the workpiece is provided at the front end of the product conveying line (8).

2. A low-pressure casting machine according to claim 1, characterized in that: The mold clamping mechanism (7) comprises a top fixing plate (71), an oil cylinder (72) is mounted on the top fixing plate (71), an oil cylinder shaft (73) is downwardly provided on the oil cylinder (72), and the oil cylinder shaft (73) is fixedly connected to the upper mold (5).

3. A low-pressure casting machine according to claim 2, characterized in that: The top fixing plate (71) and the working platform (3) are connected via a support rod (11), a slide rod (74) is further provided between the top fixing plate (71) and the working platform (3), and an opening is provided on the edge of the upper mold (5) for sliding connection with the slide rod (74).

4. A low-pressure casting machine according to claim 1, characterized in that: The mobile grasping device (9) comprises a grasping assembly (91) and a conveying assembly (92), wherein the conveying assembly (92) comprises two parallel slide rails (921) and a screw rod (922) arranged between the two slide rails, wherein the screw rod (922) is connected to a conveying motor (923), and the grasping assembly (91) comprises a mounting seat (911) threadedly connected to the screw rod (922) and slidably connected to the slide rail (921), wherein the mounting seat (911) is provided with a mounting plate (912) extending downward, wherein a grasping control motor (913) is provided at the upper end of the mounting plate (912), wherein a telescopic rod (914) is provided downwardly from the grasping control motor (913), wherein the telescopic rod (914) is connected to a vacuum suction cup (915), and wherein the vacuum suction cup (915) is connected to an air pump.

5. The low-pressure casting machine according to claim 1, characterized in that: The product conveying line (8) comprises a first conveying line (81) and a second conveying line (82) which are sequentially arranged along a conveying direction.

6. The low-pressure casting machine according to claim 1, characterized in that: The cooling device comprises multiple air outlets (10) arranged on both sides of the product conveying line (8), and the air outlets are connected to a cooling fan.

7. A low-pressure casting machine according to claim 6, characterized in that: The cooling devices are arranged on both sides of the first conveying line (81).

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