Weighing device of casting ladle

Abstract

The utility model relates to the technical field of metal casting, in particular to a casting ladle weighing device which comprises two ladle turning arms, the tops of the two ladle turning arms are fixedly connected with weighing units through supporting plates, the weighing units are provided with fixing frames on the weighing face, and a casting ladle is fixedly connected between the fixing frames on the two sides. Wherein a jacking mechanism is arranged between the supporting plate and the fixing frame, the jacking mechanism is used for jacking the casting ladle so as to replace and maintain the weighing unit, the fan-shaped ladle is directly installed on the weighing device, the weighing sensor directly weighs the fan-shaped ladle and molten iron, the weight of the molten iron in the casting process can be accurately measured, and the casting efficiency is improved. And through arrangement of the jacking mechanism, the casting ladle can be conveniently jacked, after the casting ladle is separated from the weighing sensor, the weighing sensor is conveniently disassembled, assembled and maintained, the downtime is prevented from being prolonged, and the pulley can be replaced after the jacking mechanism is used for a long time.

Description

Technical Field

[0001] This utility model relates to the field of metal casting technology, and in particular to a weighing device for casting ladles. Background Technology

[0002] A casting machine is a piece of equipment used in casting production to quantitatively and accurately pour molten metal into a mold. The main purpose of setting up a weighing sensor on the casting machine is to precisely control the weight of the molten metal during the pouring process, so as to ensure the quality and consistency of the castings.

[0003] By precisely controlling the pouring volume, metal waste caused by excessive pouring can be reduced, thus lowering production costs. For example, Chinese Patent Publication No. CN204842938U discloses a molten iron weighing and pouring device, including a base, support frame, ladle, weighing sensor, and display screen. The base and support frame are connected via the weighing sensor, the ladle is rotatably connected to the upper end of the support frame, and the display screen is electrically connected to the weighing sensor. The weighing method using this invention significantly improves the accuracy of molten iron weight control, greatly reduces defects in the inner diameter of the billet, makes the inner diameter dimensions more concentrated, reduces molten iron waste, lowers labor intensity, improves labor efficiency, and improves the work environment.

[0004] In practice, the weight of the ladle and molten iron is detected by setting a weighing sensor at the bottom of the ladle. However, when the weighing sensor needs to be disassembled and maintained, it is inconvenient to lift the ladle, which affects the efficiency of disassembly and assembly of the weighing sensor. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the inconvenience of disassembling and maintaining weighing sensors, and to propose a weighing device for casting ladles.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a weighing device for casting ladles, including two ladle-turning arms. The top of each of the two ladle-turning arms is fixedly connected to a weighing unit via a support plate. The weighing unit is provided with a fixed frame on the weighing surface, and the ladle is fixedly connected between the fixed frames on both sides.

[0008] A lifting mechanism is provided between the support plate and the fixed frame. The lifting mechanism is used to lift the ladle so as to replace and maintain the weighing unit.

[0009] Furthermore, the lifting mechanism includes a cylinder and a slide rail, both of which are fixedly connected to the top of the support plate. A wedge-shaped member is fixedly connected to the shaft end of the cylinder, and the wedge-shaped member is slidably connected within the slide rail.

[0010] Furthermore, the top of the wedge-shaped member has at least one wedge-shaped protrusion, wherein a sliding member is detachably connected to the bottom of the fixing frame via a limiting member, the sliding member being correspondingly arranged with the wedge-shaped protrusion, and the sliding member being able to slide against the wedge-shaped surface of the wedge-shaped protrusion.

[0011] Furthermore, guide rods are fixedly connected to both sides of the bottom of the fixing frame, and the guide rods are slidably connected to the bag-turning arm.

[0012] Furthermore, the sliding component includes a support frame and a pulley rotatably connected to the bottom of the support frame. A square-headed pin is fixedly connected to the bottom of the fixed frame. The bottom end of the square-headed pin is slidably connected to the support frame, and limiting grooves are provided on both sides of the bottom end.

[0013] Furthermore, the limiting member has a U-shaped structure and is inserted into the limiting groove through the clearance groove on the side. The limiting member has elastic protrusions on opposite sides of the open end, and the elastic protrusions on both sides abut, slide and engage with the square head pin.

[0014] The present invention proposes a weighing device for casting ladles, which has the following advantages: The present invention uses four integrated weighing sensors installed on both sides of the ladle-turning arm of the casting machine, and the fan-shaped ladle is directly installed on the weighing device. The weighing sensors directly weigh the fan-shaped ladle and the molten iron, which can accurately measure the weight of the molten iron during casting. In addition, the lifting mechanism can be set up to easily lift the ladle. After the ladle is separated from the weighing sensors, it is convenient to disassemble and maintain the weighing sensors, preventing the downtime from being extended. Furthermore, the pulleys of the lifting mechanism can be replaced after long-term use. The structure is simple and highly practical. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the lifting mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the limiting component of this utility model.

[0018] In the diagram: 1. Turning arm; 2. Support plate; 3. Weighing unit; 4. Fixing frame; 41. Square head pin; 42. Limiting groove; 5. Ladle; 6. Lifting mechanism; 61. Cylinder; 62. Slide rail; 63. Wedge; 64. Sliding component; 641. Support frame; 642. Pulley; 65. Guide rod; 7. Limiting component; 71. Relief groove; 72. Elastic protrusion. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-3 A weighing device for casting ladles includes two ladle-turning arms 1. The tops of the two ladle-turning arms 1 are fixedly connected to a weighing unit 3 via a support plate 2. The weighing unit 3 is provided with a fixed frame 4 on the weighing surface. A ladle 5 is fixedly connected between the fixed frames 4 on both sides.

[0021] A lifting mechanism 6 is provided between the support plate 2 and the fixing frame 4. The lifting mechanism 6 is used to lift the ladle 5 so as to replace and maintain the weighing unit 3.

[0022] It should be added that the weighing unit 3 is a weighing sensor. Four integrated weighing sensors are installed on both sides of the ladle-turning arm 1 of the casting machine. The ladle 5 is directly installed on the weighing sensor. The weighing sensor directly weighs the ladle and molten iron, which can accurately measure the weight of the molten iron during casting.

[0023] Among them, the pouring ladle 5 is preferably a fan-shaped pouring ladle. Furthermore, the pouring ladle 5 can be easily lifted by the lifting mechanism 6. After the pouring ladle 5 is separated from the weighing unit 3, it is convenient to disassemble and maintain the weighing unit 3.

[0024] Furthermore, the lifting mechanism 6 includes a cylinder 61 and a slide rail 62. Both the cylinder 61 and the slide rail 62 are fixedly connected to the top of the support plate 2. A wedge-shaped member 63 is fixedly connected to the shaft end of the cylinder 61, and the wedge-shaped member 63 is slidably connected within the slide rail 62.

[0025] Furthermore, the top of the wedge-shaped member 63 has at least one wedge-shaped protrusion, and a sliding member 64 is detachably connected to the bottom of the fixing frame 4 via a limiting member 7. The sliding member 64 is correspondingly arranged with the wedge-shaped protrusion, and the sliding member 64 can slide against the wedge-shaped surface of the wedge-shaped protrusion.

[0026] More specifically, guide rods 65 are fixedly connected to both sides of the bottom of the fixing frame 4, and the guide rods 65 are slidably connected to the bag-turning arm 1.

[0027] In this embodiment, the guide rods 65 on both sides are used to limit and support the ladle 5 and lock it in the circumferential direction. The wedge 63 moves laterally along the slide rail 62 under the drive of the cylinder 61. Under normal circumstances, the wedge 63 does not contact the sliding member 64 to avoid affecting the accuracy of the weighing of the ladle 5.

[0028] Furthermore, a linear bearing is fixedly connected inside the bag-flipping arm 1. The linear bearing is slidably connected to the guide rod 65. The linear bearing is used to avoid excessive friction between the guide rod 65 and the bag-flipping arm 1.

[0029] When the wedge 63 moves and comes into contact with the sliding member 64, it drives the fixed frame 4 and the ladle 5 to rise by sliding the wedge surface with the pulley 642.

[0030] In general, the sliding member 64 includes a support frame 641 and a pulley 642 rotatably connected to the bottom of the support frame 641. The bottom of the fixed frame 4 is fixedly connected to a square-headed pin 41, the bottom end of which is slidably connected to the support frame 641, and a limiting groove 42 is provided on both sides of the bottom end.

[0031] Finally, the limiting member 7 has a U-shaped structure and is inserted into the limiting groove 42 through the side relief groove 71. The limiting member 7 has elastic protrusions 72 on opposite sides of the opening end. The elastic protrusions 72 on both sides abut, slide and engage with the square head pin 41.

[0032] It is worth mentioning that the support frame 641 can be circumferentially locked by sliding the square head pin 41 with the support frame 641. After the limiting member 7 is inserted, the top two sides of the support frame 641 abut against the limiting member 7 and the fixing frame 4 respectively.

[0033] Furthermore, the elastic protrusion 72 is integrally formed with the limiting member 7, and the opposite sides of the pair of elastic protrusions 72 have an arc structure to reduce friction when they collide with the square head pin 41.

[0034] Working method: During operation, the limiting member 7 is inserted into the limiting groove 42 through the relief groove 71. After insertion, the limiting member 7 is fixed to the square head pin 41 through the elastic protrusions 72 on both sides. Under the insertion action of the limiting member 7, the upper and lower sides of the support frame 641 abut against the limiting member 7 and the fixing frame 4 respectively to prevent detachment.

[0035] The ladle 5 is mounted on the weighing unit 3 via the fixing frame 4 and the guide rod 65. The weighing unit 3 weighs the ladle 5 and the molten iron. When the weighing unit 3 needs to be disassembled for maintenance after long-term use:

[0036] When the wedge 63 moves and comes into contact with the sliding member 64 under the drive of the cylinder 61, it drives the fixed frame 4 and the ladle 5 to rise by sliding the wedge surface with the pulley 642.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A weighing device for a casting ladle, comprising two ladle-turning arms (1), characterized in that: The top of each of the two bag-turning arms (1) is fixedly connected to a weighing unit (3) via a support plate (2). The weighing unit (3) is provided with a fixed frame (4) on the weighing surface. A pouring ladle (5) is fixedly connected between the fixed frames (4) on both sides. A lifting mechanism (6) is provided between the support plate (2) and the fixing frame (4). The lifting mechanism (6) is used to lift the ladle (5) to replace and maintain the weighing unit (3).

2. The weighing device for a casting ladle according to claim 1, characterized in that: The lifting mechanism (6) includes a cylinder (61) and a slide rail (62). The cylinder (61) and the slide rail (62) are both fixedly connected to the top of the support plate (2). A wedge (63) is fixedly connected to the shaft end of the cylinder (61). The wedge (63) is slidably connected in the slide rail (62).

3. The weighing device for a casting ladle according to claim 2, characterized in that: The top of the wedge (63) has at least one wedge-shaped protrusion, wherein a sliding member (64) is detachably connected to the bottom of the fixing frame (4) by a limiting member (7), the sliding member (64) is correspondingly arranged with the wedge-shaped protrusion, and the sliding member (64) can slide against the wedge-shaped surface of the wedge-shaped protrusion.

4. The weighing device for a casting ladle according to claim 3, characterized in that: Guide rods (65) are also fixedly connected to the bottom sides of the fixed frame (4), and the guide rods (65) are slidably connected to the bag-turning arm (1).

5. The weighing device for a casting ladle according to claim 3, characterized in that: The sliding member (64) includes a support frame (641) and a pulley (642) rotatably connected to the bottom of the support frame (641). The bottom of the fixed frame (4) is fixedly connected with a square-headed pin (41). The bottom end of the square-headed pin (41) is movably inserted into the support frame (641), and it is also provided with limiting grooves (42) on both sides of the bottom end.

6. The weighing device for a casting ladle according to claim 5, characterized in that: The limiting member (7) has a U-shaped structure and is inserted into the limiting groove (42) through the side relief groove (71). The limiting member (7) has elastic protrusions (72) on opposite sides of the opening end. The elastic protrusions (72) on both sides abut, slide and engage with the square head pin (41).

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