A direct lifting type automatic box turning device special for lost foam

Abstract

The utility model relates to the field of lost foam casting equipment technique provides a special self -lifting type automatic tipping device of lost foam, including guide component, drive component and sand box pivotally connected on drive component. Guide component includes first guide rail and second guide rail, and the upper end of sand box is equipped with first slider, and the lower end is equipped with second slider. First guide rail has the bending section, when drive component drives sand box to move, first slider slides to the bending section along first guide rail, second slider slides to the top along the height direction of second guide rail, and sand box opening inclines downward and presents the overturning state. The utility model avoids the angle deviation problem of transmission hydraulic tipping machine, and the defect that the height difference cannot reach the requirement caused by direct overturning, and through the direction and length setting of adjusting two guide rails, can be applicable to the tipping requirement of different height, different angle, through the adjustment of inclination angle, can reduce the loss of raw material flying.

Description

Technical Field

[0001] This utility model relates to the technical field of lost foam casting equipment, and in particular to a self-lifting automatic box-turning device specifically for lost foam casting. Background Technology

[0002] In the lost foam casting process, the sand box flipping and sand removal is a key process that affects production efficiency and casting quality. Existing technologies generally use hydraulically driven flipping machines, which achieve in-situ flipping of the sand box through a fixed flipping shaft, allowing the casting sand to be flipped into the ground sand treatment system. This results in excessively deep pits for subsequent processing equipment. Furthermore, the limited flipping radius leads to a low free fall height of the molding sand inside the sand box, making it difficult to achieve effective separation of the molding sand from the casting. Additional vibration equipment is required, increasing energy consumption and process complexity.

[0003] Furthermore, existing sand box drive designs require complex components such as hydraulic rods, reversing valves, and accumulators. During the sand box tilting and sand dropping process, vibrations can easily occur, causing molten metal to splash, affecting the cleanliness of the sand mold production environment and resulting in molten metal loss. Moreover, in the high-temperature, dusty casting environment, wear on seals leads to a high failure rate, increasing equipment maintenance costs and overall expenses. Utility Model Content

[0004] In view of this, the present invention aims to propose a direct-lift automatic box-turning device for lost foam casting, which has a simple structure, smooth and reliable flipping and sand-falling movement, and can also adapt to the lost foam casting needs of different heights.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] An automatic tilting device for lost foam casting includes a guide assembly, a drive assembly, and a sand box pivotally connected to the drive assembly.

[0007] The guiding component includes a first guide rail and a second guide rail, and the sand box is provided with a first sliding member at the upper end and a second sliding member at the lower end;

[0008] The first guide rail has a bent section. When the drive assembly drives the sand box to move, the first slider slides along the first guide rail to the bent section, and the second slider slides along the height direction of the second guide rail to the top. The opening of the sand box is tilted downward and is in a flipped state.

[0009] Furthermore, the drive assembly includes a winch, a rope connected to the winch, a tilting member connected to one end of the rope, and a pulley disposed above the guide assembly.

[0010] The sand box is provided with a pivotally connected guide wheel on one side. When the sand box moves along the height direction, the flipping component is located below the guide wheel.

[0011] Furthermore, the second guide rail is a straight rod arranged along the height direction, and the second guide rail is provided with a second slide rail; the first guide rail is arranged in a figure-7 shape, and the first guide rail is provided with a first slide rail that follows its shape.

[0012] The first sliding member includes a first rotating wheel and a first pin connected above the sand box. The first rotating wheel is pivotally connected to the first pin, and the first pin is disposed through the first slide rail.

[0013] The second sliding member includes a second rotating wheel and a second pin connected to the bottom of the sand box. The second rotating wheel is pivotally connected to the second pin, and the second pin is disposed through the second slide rail.

[0014] Furthermore, the length of the second slide is greater than that of the first slide.

[0015] Furthermore, the flipping component is pivotally connected to the side of the sand box away from the second pin.

[0016] Furthermore, the first guide rail includes a longitudinal portion and a transverse portion, as well as a transition portion connecting the two;

[0017] The end of the lateral portion is located above the sand dropper.

[0018] Furthermore, the axis of the pulley is positioned close to the axis of the second guide rail.

[0019] Compared with the prior art, this utility model has the following advantages:

[0020] The lost foam casting-specific direct-lift automatic box-turning device of this utility model, through the setting of the bending section of the first guide rail and the vertical guiding design of the second guide rail, under the action of the drive component, the two sliding parts move along the preset tracks of the two guide rails respectively, avoiding the angle deviation problem of the transmission hydraulic box-turning machine, as well as the defect of the height difference not being able to meet the requirements due to direct flipping. Furthermore, by adjusting the direction and length settings of the two guide rails, it can be adapted to the box-turning needs of different heights and angles. By adjusting the tilt angle, the loss of raw materials can be reduced. Attached Figure Description

[0021] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0022] Figure 1 This is a schematic diagram of the lost foam casting special direct lifting automatic box turning device described in the embodiment of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Guiding assembly; 2. Drive assembly; 3. Sand box; 4. First sliding member; 5. Second sliding member; 6. Sand dropper;

[0025] 101. First guide rail; 102. Second guide rail;

[0026] 201. Winch; 202. Rope; 203. Tilting component; 204. Pulley;

[0027] 301. Guide wheel;

[0028] 401. First rotating wheel; 402. First pivot pin; 403. First slide rail;

[0029] 501. Second rotating wheel; 502. Second pivot pin; 503. Second slide rail;

[0030] 1011. Vertical section; 1012. Horizontal section; 1013. Transition section. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "back," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.

[0034] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] This embodiment relates to a direct-lift automatic flipping device for lost foam casting. Overall, the flipping device includes a guide assembly 1, a drive assembly 2, and a sand box 3 pivotally connected to the drive assembly 2. The guide assembly 1 includes a first guide rail 101 and a second guide rail 102. The sand box 3 has a first sliding member 4 at its upper end and a second sliding member 5 at its lower end. The first guide rail 101 has a bent section. When the drive assembly 2 moves the sand box 3, the first sliding member 4 slides along the first guide rail 101 to the bent section, and the second sliding member 5 slides along the height direction of the second guide rail 102 to the top. The opening of the sand box 3 tilts downwards, thus flipping it over.

[0036] As described above, the lost foam casting dedicated direct-lift automatic box-turning device of this embodiment, by setting the bending section of the first guide rail 101 and the vertical guiding design of the second guide rail 102, under the drive of the drive component 2, the two sliding parts move along the preset tracks of the two guide rails respectively, avoiding the angle deviation problem of the transmission hydraulic box-turning machine, as well as the defect that the height difference cannot meet the requirements due to direct flipping. Furthermore, by adjusting the direction and length settings of the two guide rails, it can be adapted to the box-turning needs of different heights and angles. By adjusting the tilt angle, the loss of raw materials can be reduced.

[0037] Based on the above overall structure, this embodiment presents an exemplary structure of a direct-lift automatic box-turning device for lost foam casting, such as... Figure 1 As shown, in this embodiment, the first guide rail 101 and the second guide rail 102 are configured as two sets, and the two sets of guide rails correspond to two sets of first sliding members 4 and second sliding members 5, respectively, so as to improve the stability of the sand box 3 during movement and flipping.

[0038] As a preferred embodiment, such as Figure 1 As shown, the drive assembly 2 includes a winch 201, a rope 202 connected to the winch 201, a tilting component 203 connected to one end of the rope 202, and a pulley 204 located above the guide assembly 1. A guide wheel 301 is pivotally connected to one side of the sand box 3. When the sand box 3 moves vertically, the tilting component 203 is positioned below the guide wheel 301. The winch 201 drives the rope 202 to raise and lower the tilting component 203, and with the guiding action of the guide wheel 301 and the pulley 204, precise vertical movement of the sand box 3 is achieved.

[0039] In addition, the tilting component 203 is located below the guide wheel 301, which can maintain the stability of the sand box 3 when it moves vertically, avoiding swaying or jamming. The pulley 204 assembly not only has a guiding function, but also can disperse the tension of the rope 202 and reduce the load loss of the winch 201. It is suitable for working scenarios such as casting and metallurgy that require frequent vertical transportation of heavy sand boxes 3.

[0040] Secondly, such as Figure 1As shown, the second guide rail 102 is a straight rod arranged along the height direction, and a second slide rail 503 is provided on the second guide rail 102; the first guide rail 101 is arranged in a "7" shape, and a first slide rail 403 is provided on the first guide rail 101 that conforms to its shape. The first sliding member 4 includes a first rotating wheel 401 and a first pin 402 connected above the sand box 3. The first rotating wheel 401 is pivotally connected to the first pin 402, and the first pin 402 passes through the first slide rail 403. The second sliding member 5 includes a second rotating wheel 501 and a second pin 502 connected below the sand box 3. The second rotating wheel 501 is pivotally connected to the second pin 502, and the second pin 502 passes through the second slide rail 503. Deep groove ball bearings are provided between each of the aforementioned pins and rotating wheels to withstand radial pressure and ensure the smooth sliding of the sand box 3.

[0041] In a preferred embodiment, the length of the second slide rail 503 is greater than that of the first slide rail 403. This configuration allows the angle of the sand box 3 to be adjusted in real time by the winch 201 after the sand box 3 is positioned at the open end, thereby accelerating the tilting speed of the sand box 3.

[0042] In addition, the flipping component 203 is pivotally connected to the side of the sand box 3 away from the second pin 502. This arrangement allows the sand box 3 to be subjected to more even force during the flipping process, gradually flipping from the bottom, reducing the possibility of shaking or displacement, and improving operational accuracy.

[0043] Preferably, as Figure 1 As shown, the first guide rail 101 includes a longitudinal portion 1011 and a transverse portion 1012, as well as a transition portion 1013 connecting the two. The end of the transverse portion 1012 is located above the sand dropper 6. The end of the transverse portion 1012 is directly located above the sand dropper 6, and the sand drop position is precisely controlled by physical limiting, avoiding the inability of traditional guiding devices to accurately pour materials into the sand dropper 6 due to accumulated errors.

[0044] like Figure 1 As shown, the axis of pulley 204 is positioned close to the axis of the second guide rail 102. This arrangement ensures that the traction force of rope 202 is aligned with the direction of movement of the second guide rail 102, making it easier to move the sand box 3 vertically and reducing jamming.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A direct-lift automatic box-turning device for lost foam casting, characterized in that: It includes a guide assembly (1), a drive assembly (2), and a sandbox (3) pivotally connected to the drive assembly (2); The guide assembly (1) includes a first guide rail (101) and a second guide rail (102). The sand box (3) has a first sliding member (4) at the upper end and a second sliding member (5) at the lower end. The first guide rail (101) has a bent section. When the drive assembly (2) drives the sand box (3) to move, the first slider (4) slides along the first guide rail (101) to the bent section, and the second slider (5) slides along the height direction of the second guide rail (102) to the top. The opening of the sand box (3) is tilted downward and is in a flipped state.

2. The lost foam casting special direct-lift automatic box-turning device according to claim 1, characterized in that: The drive assembly (2) includes a winch (201), a rope (202) connected to the winch (201), a turning member (203) connected to one end of the rope (202), and a pulley (204) located above the guide assembly (1). The sand box (3) is provided with a pivotally connected guide wheel (301) on one side. When the sand box (3) moves along the height direction, the flipping part (203) is located below the guide wheel (301).

3. The lost foam casting-specific direct-lift automatic box-turning device according to claim 2, characterized in that: The second guide rail (102) is a straight rod arranged along the height direction, and the second guide rail (102) is provided with a second slide rail (503); the first guide rail (101) is arranged in a 7 shape, and the first guide rail (101) is provided with a first slide rail (403) that follows its shape. The first sliding member (4) includes a first rotating wheel (401) and a first pin (402) connected above the sand box (3). The first rotating wheel (401) is pivotally connected to the first pin (402), and the first pin (402) is disposed through the first slide rail (403). The second sliding member (5) includes a second rotating wheel (501) and a second pin (502) connected below the sand box (3). The second rotating wheel (501) is pivotally connected to the second pin (502), and the second pin (502) is disposed through the second slide rail (503).

4. The lost foam casting special direct-lift automatic box-turning device according to claim 3, characterized in that: The length of the second slide (503) is greater than that of the first slide (403).

5. The lost foam casting special direct-lift automatic box-turning device according to claim 3, characterized in that: The flipper (203) is pivotally connected to the side of the sand box (3) away from the second pin (502).

6. The lost foam casting-specific direct-lift automatic box-turning device according to claim 3, characterized in that: The first guide rail (101) includes a longitudinal portion (1011) and a transverse portion (1012), and a transition portion (1013) connecting the two. The end of the transverse portion (1012) is located above the sand dropper (6).

7. The lost foam casting-specific direct-lift automatic box-turning device according to claim 2, characterized in that: The axis of the pulley (204) is set close to the axis of the second guide rail (102).

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