Anti-sticking sand casting box

Abstract

The utility model discloses a casting sand box of anti -sticking sand, including sand box body, still include lifting ear mechanism, through setting up lifting ear mechanism at sand box body, and lifting ear mechanism makes the L shape bridge board of the round head necking strip cooperation of existing abutment plate outside sand box body is locked with locking bolt and carries out double -point inner positioning, and simultaneously the outside of L shape bridge board is positioned and locked with the tapering fixed column of fork plate and flange nut cooperation sand box body outside with bolt axle, makes the L shape bridge board with T lifting ear can be assembled fast and firmly in sand box body outside and carries out lifting box and pours sand use, guarantees the sand in sand box body and is not easy to appear inner wall sand sticking when vibrating and dumping, and simultaneously after can remove flange nut and locking bolt, the L shape bridge board of quick removal replaces T lifting ear, and the replacement of lifting ear outside sand box body is convenient.

Description

Technical Field

[0001] This utility model relates to the field of casting sand box technology, and in particular to a casting sand box that prevents sand from sticking. Background Technology

[0002] A casting sand box is a piece of equipment used in casting production to contain and fix molding sand, protect the core, and play an important role in molding, pouring, and other processes. Its core function is to ensure that the molding sand maintains the required shape and to ensure the forming accuracy of the casting. When using a casting sand box, the anti-sticking effect is achieved by applying anti-sticking sand coating inside the box, adding anti-sticking sand additives to the molding sand, and selecting high-quality raw sand.

[0003] In existing casting sand boxes, after the inner wall is coated with an anti-sticking sand coating, the boxes usually require lifting lugs on both sides to work with the casting equipment for assembly line casting operations. These lifting lugs are usually welded to the box body. When the lifting lugs are damaged due to long-term stress and need to be replaced, the lifting lugs need to be cut before they can be re-welded. Although there are some lifting lugs that are bolted, the connection stability between these lifting lugs and the box body is limited, and they are easily loosened by vibration, making the use and replacement of the lifting lugs of the sand box inconvenient. Therefore, we propose an anti-sticking sand casting sand box. Utility Model Content

[0004] The main objective of this invention is to provide a casting sand box that prevents sand adhesion. By incorporating a lifting lug mechanism on the sand box body, the mechanism allows for dual-point internal positioning by a base plate on the outer side of the sand box body, which engages with an L-shaped bridge plate equipped with a rounded-head necked strip and locked with a locking bolt. Simultaneously, the outer side of the L-shaped bridge plate is secured by a fork plate and flange nut, along with a tapered fixed column with a bolt shaft on the outer side of the sand box body. This allows the L-shaped bridge plate with T-shaped lifting lugs to be quickly and securely assembled on the outer side of the sand box body for lifting and pouring sand, ensuring that the sand inside the sand box body is not easily vibrated and poured out, preventing sand adhesion to the inner wall. Furthermore, after removing the flange nut and locking bolt, the L-shaped bridge plate can be quickly removed to replace the T-shaped lifting lugs, facilitating the replacement of the outer lifting lugs of the sand box body, significantly shortening maintenance time, and effectively solving the problems in the prior art.

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

[0006] A casting sand box for preventing sand adhesion includes a sand box body and a lifting lug mechanism. The lifting lug mechanism includes a base plate, an L-shaped bridge plate, a round-headed necking strip, a fork plate, a tapered fixed column, a bolt shaft, a flange nut, and a T-shaped lifting lug. The shell of the sand box body has four sets of plates integrally formed on both sides of the base plate, and the L-shaped bridge plate is locked to the surface of the base plate by locking bolts. The base plate near the L-shaped bridge plate has a recessed round-headed necking groove for mounting the round-headed necking strip, and the round-headed necking strip is integrally formed on the inner L-shaped plate of the L-shaped bridge plate. The straight plate of the L-shaped bridge plate away from its own vertical plate has a fork plate integrally formed on the outer side, and a tapered fixed column integrally formed on the outer side of the sand box body is inserted into the fork plate. The top of the tapered fixed column has a bolt shaft integrally formed through the fork plate and screwed onto the flange nut. The surface of the L-shaped bridge plate behind the fork plate has a T-shaped lifting lug integrally formed on the surface.

[0007] Furthermore, the size of the round head necking strip is larger than the size of its own necking strip, and two sets of round head necking strips are symmetrically fixed on the L-shaped inner plate surface of the L-shaped bridge plate.

[0008] By adopting the above technical solution, the round-headed necking strip of the L-shaped bridge plate can be fitted into the round-headed necking groove of the base plate, so that there is a locking anti-disengagement position between the L-shaped bridge plate and the base plate, which enhances the connection stability between the two. After the round-headed necking strip is fixed on the inner plate surface of the L-shaped bridge plate, its longer strip can be smoothly inserted into the round-headed necking groove.

[0009] Furthermore, two sets of the round-headed necking grooves are symmetrically provided on the surface of the base plate, and mounting holes for screwing on locking bolts are provided between the base plate and the L-shaped bridge plate on both sides of the round-headed necking grooves.

[0010] By adopting the above technical solution, the base plate can be adapted to fit and install two sets of round-headed necking strips with double sets of round-headed necking grooves. Then, the base plate outside the round-headed necking grooves and the L-shaped bridge plate have mounting holes that can be screwed on and locked with locking bolts to achieve a firm connection between the base plate and the L-shaped bridge plate.

[0011] Furthermore, a tapered groove is provided at the fork of the fork plate away from the L-shaped bridge plate, and a tapered surface of a tapered fixed column is inserted into the tapered groove. The width of the cavity of the tapered groove is greater than the diameter of the shaft of the bolt.

[0012] By adopting the above technical solution, the fork plate can slide and lock onto the tapered surface of the tapered column through the tapered groove, so that the bolt can be inserted from the tapered groove of the fork plate and screwed and locked with the flange nut.

[0013] Furthermore, the L-shaped inner plate of the L-shaped bridge plate is provided with an inner inclined plate surface for pressing against the inclined plate surface on one side of the base plate, and the straight plate of the L-shaped bridge plate presses against the outer side of the straight plate surface of the base plate.

[0014] By adopting the above technical solution, the inner inclined plate of the L-shaped bridge plate can be pressed against the inclined plate of the base plate for contact. At this time, the straight plate of the L-shaped bridge plate can be pressed against the base plate with the locking bolt for large-area contact.

[0015] Furthermore, the central plate of the L-shaped bridge between the locking bolts is fixed to the ear post of the T-shaped lifting ear;

[0016] By adopting the above technical solution, the stud of the T-shaped lifting ear can be fixed at the L-shaped bridge plate between the locking bolts, so that the force of the T-shaped lifting ear can be directly transmitted to the entire bridge plate of the L-shaped bridge plate, ensuring that the locking bolts on both sides are subjected to uniform force.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model incorporates a lifting lug mechanism on the sand box body. This mechanism allows the sand box body to have a base plate on its outer side, which works in conjunction with an L-shaped bridge plate with a rounded neck strip and is locked with a locking bolt for dual-point internal positioning. Simultaneously, the outer side of the L-shaped bridge plate is locked with a fork plate and flange nut, which works in conjunction with a tapered fixed column with a bolt shaft on the outer side of the sand box body for external positioning. This allows the L-shaped bridge plate with T-shaped lifting lugs to be quickly and securely assembled on the outer side of the sand box body for lifting and pouring sand. This ensures that the sand inside the sand box body is not easily vibrated and poured out, preventing sand from sticking to the inner wall. Furthermore, after removing the flange nut and locking bolt, the L-shaped bridge plate can be quickly removed to replace the T-shaped lifting lugs, facilitating the replacement of the lifting lugs on the outer side of the sand box body and significantly shortening maintenance time.

[0019] Furthermore, the L-shaped bridge plate has two sets of round-headed necking strips that work precisely with the two sets of round-headed locking grooves on the base plate to form an anti-detachment structure, ensuring the stability of the locking connection between the base plate and the L-shaped bridge plate. The T-shaped lifting lug is fixed in the center of the L-shaped bridge plate, ensuring that the force can be evenly transmitted when the T-shaped lifting lug is under stress, thus extending its service life. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a casting sand box for preventing sand adhesion according to this utility model.

[0021] Figure 2 This is an exploded view of the lifting mechanism of a casting sand box for preventing sand adhesion, according to this utility model.

[0022] Figure 3 This is a schematic diagram of the base plate structure of a casting sand box for preventing sand adhesion according to this utility model.

[0023] In the diagram: 1. Sand box body; 2. Lifting lug mechanism; 3. Base plate; 4. L-shaped bridge plate; 5. Round-headed necking strip; 6. Round-headed necking groove; 7. Fork plate; 8. Tapered groove; 9. Tapered fixed column; 10. Bolt shaft; 11. Flange nut; 12. Locking bolt; 13. T-shaped lifting lug. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1-3 As shown, a casting sand box for preventing sand adhesion includes a sand box body 1 and a lifting lug mechanism 2. The lifting lug mechanism 2 includes a base plate 3, an L-shaped bridge plate 4, a round-headed necked strip 5, a fork plate 7, a tapered fixed column 9, a bolt 10, a flange nut 11, and a T-shaped lifting lug 13. The sand box body 1 has four sets of plates of the base plate 3 integrally formed on both sides of the shell, and the L-shaped bridge plate 4 is locked to the surface of the base plate 3 by locking bolts 12. The base plate 3 has a recessed surface near the L-shaped bridge plate 4. The round-headed necking groove 6 is used for mounting the round-headed necking strip 5, and the round-headed necking strip 5 is integrally formed on the L-shaped inner plate surface of the L-shaped bridge plate 4. The L-shaped bridge plate 4 has a fork plate 7 integrally formed on the outer side of the straight plate away from its own vertical plate body, and a tapered fixed column 9 integrally formed on the outer side of the sand box body 1 is inserted in the fork plate 7. The top of the column head of the tapered fixed column 9 has a bolt shaft 10 integrally formed to pass through the fork plate 7 and be screwed to the flange nut 11. A T-shaped lifting lug 13 is integrally formed on the surface of the L-shaped bridge plate 4 behind the fork plate 7.

[0026] Among them, the size of the round head strip 5 is larger than the size of its own necking strip, and two sets of round head necking strips 5 are symmetrically fixed on the L-shaped inner plate surface of the L-shaped bridge plate 4.

[0027] By adopting the above technical solution, the round-headed necking strip 5 of the L-shaped bridge plate 4 can be fitted into the round-headed necking groove 6 of the base plate 3, so that there is a locking anti-disengagement position between the L-shaped bridge plate 4 and the base plate 3, which enhances the connection stability between the two. After the round-headed necking strip 5 is fixed on the inner plate surface of the L-shaped bridge plate 4, its longer strip can be smoothly inserted into the round-headed necking groove 6.

[0028] Among them, the round-headed necking groove 6 is symmetrically provided in two sets on the surface of the base plate 3, and the base plate 3 on both sides of the round-headed necking groove 6 and the L-shaped bridge plate 4 are provided with mounting holes for screwing the locking bolt 12.

[0029] By adopting the above technical solution, the base plate 3 can be adapted to fit the double-set round-headed necking grooves 6 to install the double-set round-headed necking strips 5. Then, the base plate 3 outside the round-headed necking grooves 6 and the L-shaped bridge plate 4 have mounting holes that can be screwed on to lock the locking bolts 12 for locking, so as to achieve a firm connection between the base plate 3 and the L-shaped bridge plate 4.

[0030] Wherein, the fork plate 7 is provided with a tapered groove 8 at the fork opening away from the L-shaped bridge plate 4, and the tapered surface of the tapered fixed column 9 is inserted into the tapered groove 8. The width of the cavity of the tapered groove 8 is greater than the shaft diameter of the bolt shaft 10.

[0031] By adopting the above technical solution, the fork plate 7 can slide and cover the tapered surface of the tapered fixed column 9 through the tapered groove 8, so that the bolt shaft 10 can be inserted from the tapered groove 8 of the fork plate 7 and screwed and locked with the flange nut 11.

[0032] The L-shaped bridge plate 4 has an inner inclined plate surface for pressing against the inclined plate surface on one side of the base plate 3, and the straight plate body of the L-shaped bridge plate 4 presses against the outer side of the straight plate surface of the base plate 3.

[0033] By adopting the above technical solution, the inclined plate surface inside the L-shaped bridge plate 4 can be pressed against the inclined plate surface of the base plate 3 for contact. At this time, the straight plate body of the L-shaped bridge plate 4 can be pressed against the base plate 3 with the locking bolt 12 for large-area contact.

[0034] The central plate of the L-shaped bridge plate 4 between the locking bolts 12 is fixed to the ear post of the T-shaped lifting ear 13;

[0035] By adopting the above technical solution, the stud of the T-shaped lifting ear 13 can be fixed at the L-shaped bridge plate 4 between the locking bolts 12, so that the force of the T-shaped lifting ear 13 is directly transmitted to the entire bridge plate of the L-shaped bridge plate 4, ensuring that the locking bolts 12 on both sides are evenly stressed.

[0036] It should be noted that this utility model is a casting sand box for preventing sand adhesion. After the lifting lug mechanism 2 is set in the sand box body 1, the base plate 3 and the tapered fixed column 9 of the lifting lug mechanism 2 can be integrally formed on the outside of the sand box body 1. Then, the L-shaped bridge plate 4 is positioned by the round-headed necking strip 5 engaging with the round-headed necking groove 6 of the base plate 3. The fork plate 7 of the L-shaped bridge plate 4 is pressed against the tapered surface of the tapered fixed column 9 by the tapered groove 8. At this time, the flange nut 11 can be screwed onto the bolt shaft 10 of the tapered fixed column 9. Then, the locking bolt 12 is screwed into the mounting holes of the L-shaped bridge plate 4 and the base plate 3. Between them, the L-shaped bridge plate 4 and the base plate 3 are locked together. The outer side of the sand box body 1 can be normally lifted by the box-turning equipment with the T-shaped lifting lug 13 for vibration and tilting of sand and castings. Under the action of vibration force and anti-sticking sand coating on the inner wall of the sand box body 1, the inner wall of the sand box body 1 is not prone to sand sticking. When the T-shaped lifting lug 13 is damaged by long-term stress, the worker can unscrew the flange nut 11 and locking bolt 12, then hold the T-shaped lifting lug 13 to pull the L-shaped bridge plate 4 from the base plate 3, take out a new L-shaped bridge plate 4 with the T-shaped lifting lug 13, and assemble it according to the above steps.

[0037] It should be noted that this utility model is a casting sand box for preventing sand adhesion. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A casting sand box for preventing sand adhesion, comprising a sand box body (1), characterized in that: It also includes a lifting lug mechanism (2), which includes a base plate (3), an L-shaped bridge plate (4), a round-headed necking strip (5), a fork plate (7), a tapered fixed column (9), a bolt (10), a flange nut (11), and a T-shaped lifting lug (13). The shell of the sand box body (1) is integrally formed with four sets of plates of the base plate (3) on both sides, and the surface of the base plate (3) is locked with the L-shaped bridge plate (4) by locking bolts (12). The base plate (3) near the L-shaped bridge plate (4) has a recessed surface for mounting the round-headed necking strip (5). 5) The round-headed necking groove (6) and the round-headed necking strip (5) are integrally formed on the L-shaped inner plate surface of the L-shaped bridge plate (4). The L-shaped bridge plate (4) has a fork plate (7) integrally formed on the outer side of the straight plate away from its own vertical plate body. The fork plate (7) is inserted with a tapered fixed column (9) integrally formed on the outer side of the sand box body (1). The top of the column head of the tapered fixed column (9) is integrally formed with a bolt shaft (10) that passes through the fork plate (7) and is screwed to the flange nut (11). The L-shaped bridge plate (4) behind the fork plate (7) has a T-shaped lifting lug (13) integrally formed on its surface.

2. The casting sand box for preventing sand adhesion according to claim 1, characterized in that: The round head necking strip (5) has a larger round head strip size than its own necking strip size, and two sets of round head necking strips (5) are symmetrically fixed on the L-shaped inner plate surface of the L-shaped bridge plate (4).

3. The casting sand box for preventing sand adhesion according to claim 1, characterized in that: The round-headed necking groove (6) is symmetrically provided in two sets on the surface of the base plate (3), and mounting holes for screwing the locking bolt (12) are provided between the base plate (3) and the L-shaped bridge plate (4) on both sides of the round-headed necking groove (6).

4. A casting sand box for preventing sand adhesion according to claim 1, characterized in that: The fork plate (7) is provided with a tapered groove (8) at the fork opening away from the L-shaped bridge plate (4), and the tapered surface of the tapered fixed column (9) is inserted into the tapered groove (8). The width of the cavity of the tapered groove (8) is greater than the shaft diameter of the bolt shaft (10).

5. A casting sand box for preventing sand adhesion according to claim 1, characterized in that: The L-shaped bridge plate (4) has an inner inclined plate surface for pressing against the inclined plate surface on one side of the base plate (3) at the L-shaped inner plate surface, and the straight plate body of the L-shaped bridge plate (4) is pressed against the outer side of the straight plate surface of the base plate (3).

6. A casting sand box for preventing sand adhesion according to claim 1, characterized in that: The central plate of the L-shaped bridge plate (4) between the locking bolts (12) is fixed to the ear post of the T-shaped lifting ear (13).

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