Sand core structure for solving deformation of water channel core with slender structure
By setting a side core head on the side of the waterway core to connect the end core head and setting a positioning core head at the lower end of the side core head, the problem of deformation of the elongated structure waterway core at high temperature is solved, the strength of the sand core is enhanced, and the normal operation of the cylinder is ensured.
Patent Information
- Application Number
- CN202421859738.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-02
AI Technical Summary
When producing water channel cores for diesel engine cylinder blocks, the water channel cores with elongated structures are prone to deform or even break in high temperature environments, resulting in the scrapping of the cylinder block.
By providing a side core head on the side of the waterway core, the end core heads at the front and rear ends are connected to enhance the strength of the sand core, and a positioning core head is provided at the lower end of the side core head to facilitate the formation of the core.
This design enhances the strength of the sand core, avoids the problem of deformation at high temperatures, and ensures the integrity of the waterway core and the normal operation of the cylinder.
Smart Images
Figure CN222944445U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of diesel engine cylinder casting core making, in particular to a sand core structure for solving the deformation of a slender waterway core. Background Art
[0002] When producing the water channel core of a certain National VI diesel engine cylinder body, the original process set the end core heads before and after the water channel core. Please refer to Figure 4 Since the water channel core runs through the front and rear ends of the cylinder body, with a length of more than 900mm, and some parts of the water channel core are thin (only 10mm), during the sand core baking and pouring process, the high temperature environment causes the sand core to deform or even break, causing the cylinder body to be scrapped. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a sand core structure for solving the deformation of the slender waterway core.
[0004] The technical solution adopted by the utility model is a sand core structure for solving the deformation of a water channel core with a slender structure, comprising a water channel water cavity core with a slender structure, top surface water hole cores are arranged at intervals on the side of the water channel water cavity core, end surface water hole cores are arranged at both ends of the water channel water cavity core, the end surface water hole cores are connected to end core heads, side core heads are arranged on the side of the water channel water cavity core, the side core heads are connected to the top surface water hole core, and the side core heads and the end core heads are connected as a whole.
[0005] Furthermore, the lower end of the side core head protrudes downward and extends away from the water channel water cavity core to be provided with a positioning core head.
[0006] Furthermore, one positioning core head is provided on each side of the side core head in the length direction.
[0007] Furthermore, the side core head is a flat core head, and the rounded corners of the water hole core on the top surface are parted.
[0008] Furthermore, the width of the side core head is greater than 40 mm.
[0009] The utility model solves the problem of deformation of the slender waterway core by providing a side core head to connect the end core heads at the front and rear ends, thereby enhancing the strength of the sand core and solving the problem of deformation of the sand core at high temperature. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of the water channel core of the utility model;
[0011] Figure 2 It is a front view of the water channel core of the utility model;
[0012] Figure 3 This is a schematic diagram of the core assembly structure of the water channel core of the utility model;
[0013] Figure 4 It is a front view of a water channel core in the prior art.
[0014] In the figure: 1, water channel water cavity core; 2, top surface water hole core; 3, end surface water hole core; 4, end core head; 5, side core head; 51, positioning core head; 6, outer mold. DETAILED DESCRIPTION
[0015] In order to better understand the purpose, structure and function of the present invention, a sand core structure for solving the deformation of a slender waterway core of the present invention is further described in detail below in conjunction with the accompanying drawings.
[0016] like Figure 1~Figure 3 As shown, a sand core structure for solving the deformation of a slender water channel core comprises a water channel water cavity core 1 of a slender structure, top surface water through hole cores 2 are arranged at intervals on the side of the water channel water cavity core 1, end surface water hole cores 3 are arranged at both ends of the water channel water cavity core 1, the end surface water hole cores 3 are connected to end core heads 4, side core heads 5 are arranged on the side of the water channel water cavity core 1, the side core heads 5 are connected to the top surface water through hole core 2, and the side core heads 5 and the end core heads 4 are connected as a whole.
[0017] In this embodiment, the side core head 5 is a flat core head, and the rounded corners of the top surface water hole core 2 are parted. This design allows the side core head 5 to be easily demoulded from the water channel water cavity core 1 by only setting a draft angle. The width of the side core head is greater than 40 mm, which can ensure the strength of the side core head 5 itself.
[0018] The lower end of the side core head 5 protrudes downward and extends away from the water channel water cavity core 1 to be provided with a positioning core head 51, and one positioning core head 51 is arranged on each side of the length direction of the side core head 5. The positioning core head 51 is arranged to facilitate accurate positioning of the water channel core and the outer mold 6 when the core is assembled, providing convenience for the core assembly.
[0019] like Figure 2 and Figure 4 As shown, in the original process, the end core heads 4 before and after the water channel core are not connected. The utility model connects the end core heads 4 before and after the water channel core, thereby increasing the strength of the sand core. The use of the sand core head structure of the utility model enhances the strength of the sand core and solves the problem of deformation of the sand core at high temperature.
[0020] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.
Claims
1. A sand core structure for solving the deformation of a slender waterway core, characterized in that: The invention comprises a water channel water cavity core (1) of a slender structure, wherein top surface water hole cores (2) are arranged at intervals on the side of the water channel water cavity core (1), end surface water hole cores (3) are arranged at both ends of the water channel water cavity core (1), the end surface water hole cores (3) are connected to end core heads (4), and side core heads (5) are arranged on the side of the water channel water cavity core (1), the side core heads (5) are connected to the top surface water hole core (2), and the side core heads (5) and the end core heads (4) are connected as a whole.
2. The sand core structure for solving the deformation of the slender waterway core according to claim 1 is characterized in that: The lower end of the side core head (5) is protruding downwards and extending away from the water channel water cavity core (1) to be provided with a positioning core head (51).
3. The sand core structure for solving the deformation of the slender waterway core according to claim 2, characterized in that: One positioning core head (51) is provided on each side of the side core head (5) in the length direction.
4. The sand core structure for solving the deformation of the slender waterway core according to any one of claims 1 to 3, characterized in that: The side core head (5) is a flat core head, and is parted by the rounded corners of the top surface water hole core (2).
5. The sand core structure for solving the deformation of the slender waterway core according to claim 4, characterized in that: The width of the side core head (5) is greater than 40 mm.