A snail core assembly and a method of levelling thereof

By setting leveling components and a core head inside the snail core assembly, the center of gravity of the snail core is adjusted, solving the problem of unstable center of gravity during the casting process, ensuring stable core placement, and improving production efficiency and product quality.

CN117259682BActive Publication Date: 2026-05-05KOCEL EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
KOCEL EQUIP
Filing Date
2023-09-27
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

During the casting process, the snail core's unstable center of gravity causes it to sway during hoisting, resulting in misalignment of the sand core mating surfaces when the box is closed. This affects the product's dimensions and quality, and frequent adjustments lead to damage to the sand core.

Method used

Design a snail core assembly, comprising a leveling component, a straight section of tube wall, and a spiral section. The inner cavity is provided with a leveling pit. The center of gravity position is adjusted and the snail core is fixed by the leveling component. The first and second core heads support the snail core for horizontal placement.

Benefits of technology

This technology enables stable core placement, avoids center of gravity shift, reduces the number of core adjustments, improves operational efficiency, prevents core damage, and ensures product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to a snail core assembly, including a leveling component, a connected straight section of pipe wall (100), and a spiral section (200). A first core head (110) is provided at the end of the straight section of pipe wall (100), and a second core head (210) is provided at the bottom end of the spiral section (200). The first core head (110) and the second core head (210) are used to fix the snail core. An inner cavity is formed on the spiral section (200), and a leveling pit (220) is provided in the inner cavity for placing the leveling component. This application also relates to a method for leveling the snail core. This solution can solve the problems of uneven center of gravity, unstable placement of sand cores, uneven lifting, and shift towards the center of gravity after core placement during the current snail core casting production process.
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Description

Technical Field

[0001] This invention relates to the field of equipment tooling technology, and in particular to a snail core assembly and its leveling method. Background Technology

[0002] In the casting production process, in addition to paying attention to the safety of hoisting sand cores during the box assembly process, it is also important to ensure that the sand cores are kept horizontal in the lower core direction during the hoisting process.

[0003] Due to structural issues, the lifting points of the snail core cannot be evenly distributed around the center of gravity. As a result, the center of gravity of the sand core is unstable during lifting and transportation, which can easily cause it to sway. In particular, during the assembly process, the mating surfaces of the sand core cannot be aligned with each other, which can lead to the core not being placed in place and affecting the product dimensions. Alternatively, repeated adjustments to the position of the sand core can cause damage to the local structure of the sand core, causing sand blocks to fall into the cavity, affecting production efficiency and product quality. Summary of the Invention

[0004] Therefore, it is necessary to provide a snail core assembly and its leveling method to address the problems of uneven center of gravity during core placement, unstable sand core placement, uneven hoisting, and shift of the center of gravity after core placement in the current snail core casting production process.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] In a first aspect, embodiments of the present invention disclose a snail core assembly, including a leveling component, a connected straight section of tube wall, and a spiral section. A first core head is provided at the end of the straight section of tube wall, and a second core head is provided at the bottom of the spiral section. The first core head and the second core head are used to fix the snail core. An inner cavity is provided on the spiral section, and a leveling pit is provided in the inner cavity. The leveling pit is used to place the leveling component.

[0007] In one embodiment, a partition is further included, which is disposed in the inner cavity and divides the inner cavity into a plurality of leveling pits.

[0008] In one embodiment, the plurality of leveling pits are evenly distributed at center intervals along the inner cavity.

[0009] In one embodiment, a core is provided within the partition.

[0010] In one embodiment, the leveling component includes a leveling block and casting sand.

[0011] Secondly, embodiments of the present invention disclose a leveling method for a snail core, applied to the snail core assembly described above, comprising:

[0012] The specific amount of leveling components was determined by simulating the position of the center of gravity.

[0013] Add the preset amount of leveling components into the leveling pit;

[0014] The snail core is inserted and fixed by the first core head and the second core head.

[0015] In one embodiment, the number of leveling pits is multiple, including:

[0016] The specific amount of leveling components used in each leveling pit was determined by simulating the position of the center of gravity.

[0017] Add the preset amount of leveling components to the corresponding leveling pits in sequence.

[0018] In one embodiment, multiple leveling pits are evenly distributed along the center interval of the inner cavity to reduce the weight of the leveling pits on the side closer to the center of gravity.

[0019] In one embodiment, after determining the specific amount of leveling components through a simulation test of the center of gravity position, the method further includes: determining the position of the lifting point through a simulation test of the center of gravity position.

[0020] The technical solution adopted in this invention can achieve the following beneficial effects:

[0021] In the snail core assembly disclosed in this invention, a corresponding leveling component is placed in the inner cavity of the spiral section to cooperate with the first and second core heads to fix and support the balance of the snail core. This allows the snail core to be adjusted so that it can be placed horizontally with the support of the first and second core heads, ensuring that the snail core is in place without deviation. This avoids the center of gravity of the snail core shifting to one side after placement, preventing the sand core from being unstable. At the same time, adjusting the center of gravity of the snail core reduces the number of times the core placement position needs to be adjusted, improving operational efficiency. It also avoids damage to the core head and sand blocks falling into the mold cavity due to multiple core placement position adjustments, which would affect product quality. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the snail core assembly disclosed in an embodiment of the present invention;

[0023] Figure 2 for Figure 1 A structural diagram from another perspective.

[0024] Explanation of reference numerals in the attached figures:

[0025] 100 - Straight section pipe wall, 110 - First core head, 200 - Spiral section, 210 - Second core head, 220 - Leveling pit, 300 - Partition. Detailed Implementation

[0026] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0027] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "end," "top," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] like Figures 1-2 As shown, this invention discloses a snail core assembly, which is used in the manufacture of snail shell products. Specifically, relative to the size of the snail shell product itself, there is a larger circular hole structure on the top surface of the snail shell product and a smaller circular hole structure on the bottom surface. The inner cavity structure of the snail shell product is formed by the snail core assembly described in this invention.

[0030] The snail core assembly disclosed in this invention includes a leveling component, a connected straight section of tube wall 100, and a spiral portion 200. The leveling component is used for leveling. The connected straight section of tube wall 100 and the spiral portion 200 constitute the internal cavity structure of the snail shell product. A first core head 110 is provided at the end of the straight section of tube wall 100, and a second core head 210 is provided at the bottom end of the spiral portion 200. The first core head 110 and the second core head 210 are used to fix the snail core to facilitate the manufacturing of the snail shell product. An inner cavity is formed on the spiral portion 200, and a leveling pit 220 is provided in the inner cavity for placing the leveling component.

[0031] During operation, a preset leveling component can be added to the leveling pit 220. The leveling component can be set on the snail core to cooperate with the first core head 110 and the second core head 210 to fix and support the balance of the snail core, thereby adjusting the snail core to be placed horizontally with the support of the first core head 110 and the second core head 210, ensuring that the snail core is in place without deviation.

[0032] As can be seen from the above, in the snail core assembly disclosed in this embodiment of the invention, by placing corresponding leveling components in the inner cavity of the spiral portion 200 to cooperate with the first core head 110 and the second core head 210 to fix and support the balance of the snail core, the snail core is adjusted to be horizontally placed and supported by the first core head 110 and the second core head 210, ensuring that the snail core is not deviated when it is lowered into place, avoiding the center of gravity of the snail core being biased to one side after lowering, and the sand core being unstable. At the same time, the snail core after adjusting the center of gravity can reduce the number of times the lowering position is adjusted, improve the operation efficiency, and avoid damage to the core head of the snail core caused by multiple lowering position adjustments, resulting in sand blocks falling into the mold cavity and affecting product quality.

[0033] The snail core assembly disclosed in this embodiment of the invention may further include a partition 300, which may be disposed in the inner cavity and may divide the inner cavity into multiple leveling pits 220. Figure 1 and 2 As shown, the partition 300 not only facilitates the forming of the leveling pit 220, but also acts as a reinforcing rib to ensure the strength of the snail core, thereby improving product quality.

[0034] Based on the dimensions of the snail core structure, 4-8 leveling pits 220 can be designed. The depth of the leveling pits 220 is determined by the strength and structure of the sand core. To ensure the strength and safety of the sand core during hoisting and turning, this embodiment of the invention does not impose any restrictions on this.

[0035] Furthermore, the multiple leveling pits 220 can be evenly distributed along the center intervals of the inner cavity. For example... Figure 2 As shown, at this point, multiple leveling pits 220 can be evenly distributed throughout the inner cavity, achieving a better leveling effect. Furthermore, in this configuration, the leveling pits 220 closer to the center of gravity can structurally reduce weight, saving casting sand and lowering the sand-to-iron ratio, while also aiding in the adjustment of the center of gravity. It should be noted that the openings of the leveling pits 220 face upwards to prevent the leveling components from falling off, as shown in the diagram. Figure 1 and Figure 2 As shown.

[0036] In an optional embodiment, a core, such as a core iron, may be provided within the partition 300. The core can strengthen the partition 300, ensuring that the dimensions of the leveling pit 220 do not change, and can also increase the strength of the snail core to ensure product quality.

[0037] In one alternative embodiment, the leveling component may include a leveling block, casting sand, or other weights; this embodiment of the invention does not limit the type of weight.

[0038] Based on the snail core assembly disclosed in the embodiments of the present invention, the present invention discloses a snail core leveling method, applicable to the snail core assembly of any of the above embodiments. The disclosed snail core leveling method specifically includes:

[0039] The specific amount of leveling components was determined by simulating the position of the center of gravity.

[0040] Add a preset amount of leveling components into the leveling pit 220;

[0041] The snail core is lowered and fixed by the first core head 110 and the second core head 210.

[0042] In the snail core leveling method disclosed in this invention, the specific amount of leveling components is determined through a simulation test of adjusting the center of gravity position. Then, corresponding leveling components are placed in the leveling pit 220 to cooperate with the first core head 110 and the second core head 210 to fix and support the snail core for balance. This adjusts the snail core so that it can be placed horizontally with the support of the first core head 110 and the second core head 210, ensuring that the snail core is in place without deviation. This avoids the center of gravity of the snail core shifting to one side after placement, resulting in unstable sand core fixation. At the same time, adjusting the center of gravity of the snail core reduces the number of times the core placement position can be adjusted, improving operational efficiency. It also avoids damage to the core head and sand block falling into the mold cavity due to multiple core placement position adjustments, which would affect product quality.

[0043] Furthermore, the number of leveling pits 220 is multiple, including:

[0044] The specific amount of leveling components used in each leveling pit 220 was determined by simulating the position of the center of gravity.

[0045] Add the preset amount of leveling components to the corresponding leveling pit 220 in sequence.

[0046] Furthermore, the multiple leveling pits 220 can be evenly distributed along the center interval of the inner cavity, reducing the weight of the leveling pits 220 near the center of gravity. In this configuration, the leveling pits 220 near the center of gravity can structurally reduce weight, which can save casting sand and reduce the sand-to-iron ratio, and conversely, help adjust the center of gravity.

[0047] Furthermore, in the leveling method disclosed in this embodiment of the invention, after determining the specific amount of leveling components through a simulation test of the center of gravity position, the method further includes: determining the lifting point position through a simulation test of the center of gravity position. In this case, the worm core after adjusting the center of gravity can reduce the number of times the lower core position needs to be adjusted, improve operational efficiency, and avoid damage to the worm core head and sand blocks falling into the mold cavity due to multiple lower core position adjustments, thus affecting product quality.

[0048] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A snail core assembly, characterized in that, The device includes a leveling component, a connected straight section of pipe wall (100), a spiral section (200), and a partition (300). The end of the straight section of pipe wall (100) is provided with a first core head (110), and the bottom end of the spiral section (200) is provided with a second core head (210). The first core head (110) and the second core head (210) are used to fix the snail core. The spiral section (200) has an inner cavity, and the inner cavity is provided with a leveling pit (220). The leveling pit (220) is used to place the leveling component. The partition (300) is provided in the inner cavity and divides the inner cavity into multiple leveling pits (220).

2. The snail core assembly according to claim 1, characterized in that, The multiple leveling pits (220) are evenly distributed along the center interval of the inner cavity.

3. The snail core assembly according to claim 1, characterized in that, The partition (300) contains a core.

4. The snail core assembly according to claim 1, characterized in that, The leveling components include leveling blocks and casting sand.

5. A method for leveling a snail core, applied to the snail core assembly according to any one of claims 1 to 4, characterized in that, include: The specific amount of leveling components was determined by simulating the position of the center of gravity. Add a preset amount of leveling component to the leveling pit (220); The snail core is lowered and fixed by the first core head (110) and the second core head (210).

6. The leveling method for the snail core according to claim 5, wherein the number of leveling pits (220) is plurality of, characterized in that, include: The specific amount of leveling components in each leveling pit (220) was determined by simulating the position of the center of gravity. Add the preset amount of leveling components to the corresponding leveling pit (220) in sequence.

7. The method for leveling the snail core according to claim 6, characterized in that, Multiple leveling pits (220) are evenly distributed along the center interval of the inner cavity to reduce the weight of the leveling pits (220) on the side closer to the center of gravity.

8. The method for leveling a snail core according to claim 5, characterized in that, After determining the specific amount of leveling components through a simulation test of the center of gravity position, the method further includes: determining the position of the lifting point through a simulation test of the center of gravity position.

Citation Information

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