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CN-117259682-B - Snail core assembly and leveling method thereof

CN117259682BCN 117259682 BCN117259682 BCN 117259682BCN-117259682-B

Abstract

The application relates to a snail core assembly, which comprises a leveling piece, a straight pipe wall (100) and a spiral part (200) which are connected, wherein a first core head (110) is arranged at the end part of the straight pipe wall (100), a second core head (210) is arranged at the bottom end of the spiral part (200), the first core head (110) and the second core head (210) are used for fixing a snail core, an inner cavity is formed in the spiral part (200), a leveling pit (220) is arranged in the inner cavity, and the leveling pit (220) is used for placing the leveling piece. The application also relates to a leveling method of the snail core. The technical scheme can solve the problems that the prior snail core is deviated in gravity center, unstable in sand core placement, uneven in lifting, deviated in gravity center position after core placement and the like when core placement is performed in the casting production process.

Inventors

  • WANG SHIQIN
  • LIU YALIN
  • HE CHANGYI
  • ZHANG WEN
  • TIAN XIN

Assignees

  • 共享装备股份有限公司

Dates

Publication Date
20260505
Application Date
20230927

Claims (8)

  1. 1. The snail core assembly is characterized by comprising a leveling piece, a straight pipe wall (100), a spiral part (200) and an interlayer (300), wherein the straight pipe wall (100) is connected, a first core head (110) is arranged at the end part of the straight pipe wall (100), a second core head (210) is arranged at the bottom end of the spiral part (200), the first core head (110) and the second core head (210) are used for fixing a snail core, an inner cavity is formed in the spiral part (200), a leveling pit (220) is formed in the inner cavity, the leveling pit (220) is used for placing the leveling piece, the interlayer (300) is arranged in the inner cavity, and the inner cavity is divided into a plurality of leveling pits (220).
  2. 2. The snail core assembly of claim 1, wherein a plurality of leveling pits (220) are evenly spaced along the center of the inner cavity.
  3. 3. The snail core assembly of claim 1, wherein the barrier (300) has a core bar disposed therein.
  4. 4. The snail core assembly of claim 1, wherein the leveling member comprises a leveling block, foundry sand.
  5. 5. A method of leveling a snail core, applied to the snail core assembly of any one of claims 1 to 4, comprising: determining the specific consumption of the leveling piece through a gravity center position adjustment simulation test; Adding a leveling piece with a preset amount into the leveling pit (220); The snail core is cored and fixed by a first core head (110) and a second core head (210).
  6. 6. The leveling method of a snail core, according to claim 5, the number of leveling pits (220) being plural, characterized by comprising: Determining the specific dosage of the leveling pieces in each leveling pit (220) through a center-of-gravity position adjustment simulation test; leveling pieces with preset amounts are sequentially added into the corresponding leveling pits (220).
  7. 7. The leveling method for a snail core, according to claim 6, characterized in that a plurality of leveling pits (220) are uniformly distributed at intervals along the center of the inner cavity, and the weight of the leveling pit (220) near the center of gravity is reduced.
  8. 8. The method for leveling a snail core according to claim 5, wherein the step of determining the specific amount of leveling member by the center of gravity adjustment position simulation test further comprises determining the position of the hanging point by the center of gravity adjustment position simulation test.

Description

Snail core assembly and leveling method thereof Technical Field The invention relates to the technical field of equipment tools, in particular to a snail core assembly and a leveling method thereof. Background In the casting production process, the box closing process of lifting the sand core is not only safe, but also the sand core is kept horizontal in the core-setting direction in the lifting process. The snail core is not equally distributed around the center of gravity due to the structural problem, so that the center of gravity of the sand core is unstable in the lifting process and easy to shake, especially the matching surfaces of the sand core are not aligned with each other in the box closing process, the lower core is not in place finally, the size of a product is affected, or the position of the sand core is repeatedly adjusted, the local structure of the sand core is damaged, and sand blocks fall into a cavity, so that the production efficiency and the product quality are affected. Disclosure of Invention Based on the problems, such as eccentric center of gravity, unstable sand core placement, uneven lifting, and deviation of the center of gravity after core placement, in the casting production process of the current snail core, the snail core assembly and the leveling method thereof are provided. In order to solve the problems, the invention adopts the following technical scheme: In a first aspect, an embodiment of the invention discloses a snail core assembly, which comprises a leveling piece, a straight pipe wall and a spiral part, wherein the straight pipe wall is connected, a first core head is arranged at the end part of the straight pipe wall, a second core head is arranged at the bottom end of the spiral part, the first core head and the second core head are used for fixing a snail core, an inner cavity is formed in the spiral part, a leveling pit is arranged in the inner cavity, and the leveling pit is used for placing the leveling piece. In one embodiment, the leveling device further comprises a barrier layer arranged in the inner cavity and dividing the inner cavity into a plurality of leveling pits. In one embodiment, a plurality of the leveling pits are uniformly spaced along the center of the inner cavity. In one embodiment, a core is disposed within the barrier layer. In one embodiment, the leveling member includes a leveling block and foundry sand. In a second aspect, an embodiment of the present invention discloses a leveling method for a snail core, which is applied to the snail core assembly described above, and includes: determining the specific consumption of the leveling piece through a gravity center position adjustment simulation test; adding a leveling piece with a preset amount into the leveling pit; The snail core is placed under the core and fixed through the first core head and the second core head. In one embodiment, the number of leveling pits is a plurality, including: determining the specific consumption of leveling pieces in each leveling pit through a gravity center position adjustment simulation test; leveling pieces with preset amounts are sequentially added into the corresponding leveling pits. In one embodiment, the plurality of leveling pits are uniformly distributed along the center of the inner cavity at intervals, and the weight of the leveling pit near one side of the center of gravity is reduced. In one embodiment, the method further comprises determining the position of the lifting point through the gravity center position adjustment simulation test after determining the specific consumption of the leveling piece through the gravity center position adjustment simulation test. The technical scheme adopted by the invention can achieve the following beneficial effects: In the snail core assembly disclosed by the embodiment of the invention, the corresponding leveling piece is placed in the inner cavity of the spiral part to be matched with the first core head and the second core head to fixedly support the snail core for balancing, so that the snail core is adjusted to be horizontally placed through the first core head and the second core head, the situation that the snail core is in place and is not deviated is ensured, the phenomenon that the center of gravity of the snail core is deviated to one side after the snail core is placed, and the sand core is unstable is avoided, meanwhile, the times of adjusting the position of the lower core can be reduced by adjusting the snail core after the center of gravity, the operation efficiency is improved, and the phenomenon that the core head of the snail core is damaged due to repeated adjustment of the lower core position, sand blocks fall into the cavity and the product quality is influenced is avoided. Drawings Fig. 1 is a schematic view showing the structure of a snail core assembly according to the embodiment of the present invention; Fig. 2 is a schematic structural diagram of fig. 1 at another view ang