Suspension tool and suspension device for ceramic sintering

By designing suspended fixtures and support frames, and using heat-resistant stainless steel ring wires to form load-bearing components, the problem of uneven heating in ceramic sintering was solved, thereby improving the pass rate and sintering efficiency of ceramic products.

CN224593739UActive Publication Date: 2026-08-04NINGBO ZHAOYING MEDICAL INSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO ZHAOYING MEDICAL INSTR CO LTD
Filing Date
2024-03-29
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing ceramic sintering fixtures are prone to deformation under prolonged high-temperature environments, resulting in uneven heating of products and affecting the pass rate of mass production.

Method used

A suspended fixture is used, which uses multiple first and second ring wires to form a load-bearing component. Combined with a support frame, it ensures that the ceramic to be sintered is connected to the external space. It is made of heat-resistant stainless steel to reduce deformation and maintain uniform heating.

Benefits of technology

It improves the uniformity of heating and the pass rate of ceramic products, reduces costs, and improves sintering efficiency and quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the field of ceramic processing technology and discloses a suspended fixture and suspension device for ceramic sintering. The suspended fixture for ceramic sintering includes a support component and a suspension component. The support component has a receiving space, and its upper side has a feed inlet communicating with the receiving space. The support component includes a plurality of spaced-apart first ring wires and a plurality of spaced-apart second ring wires. The extension directions of the first and second ring wires intersect to form a plurality of through holes communicating with the receiving space. One end of the suspension component is connected to the support component, and the other end has a hook for hanging. Therefore, when used in sintering operations, compared to fixtures with plate-like structures, this suspended fixture for ceramic sintering uses only a plurality of first and second ring wires, requiring less material and reducing cost. Furthermore, it ensures minimal deformation throughout the sintering process, ensures uniform heating of the ceramic to be sintered, and helps improve the yield rate of the sintered ceramic.
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Description

Technical Field

[0001] This utility model relates to the field of ceramic processing technology, and in particular to a suspended fixture and suspension device for ceramic sintering. Background Technology

[0002] In ceramic sintering processes, especially in the sintering of medical ceramic products, the products are fixed in place by specific tooling. The deformation of the tooling, which is continuously exposed to high temperatures during sintering, directly affects whether the product can maintain uniform heating. In turn, the ability of the product to maintain uniform heating affects the pass rate and efficiency of mass production.

[0003] In existing technologies, the tooling used for ceramic sintering mainly consists of a plate-like structure forming a frame to accommodate the product to be sintered. Slots and other structures are created on the surface of the frame to allow airflow. However, during prolonged sintering operations, the plate-like structure is constantly exposed to high temperatures, which can easily cause it to soften and deform significantly. This affects the uniformity of heating during sintering, leading to a lower yield rate in mass production.

[0004] Therefore, there is an urgent need for a suspended fixture and suspension device for ceramic sintering to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a suspended fixture and suspension device for ceramic sintering, which solves the problem that the existing fixtures for ceramic sintering are prone to deformation under long-term high temperature environment due to their plate structure, which affects the uniformity of product heating and leads to a decrease in the pass rate of mass production.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] In a first aspect, this utility model provides a suspended fixture for ceramic sintering, comprising:

[0008] A support assembly having a receiving space for accommodating ceramic to be sintered, and a feed inlet communicating with the receiving space on its upper side. The support assembly includes a plurality of spaced-apart first annular wires and a plurality of spaced-apart second annular wires, the extension directions of which intersect to form a plurality of through holes communicating with the receiving space.

[0009] The suspension assembly has one end connected to the load-bearing assembly and the other end having a hook for hanging.

[0010] Optionally, the first loop wire is perpendicular to the extension direction of the second loop wire.

[0011] Optionally, both the first and second annular wires are made of heat-resistant stainless steel.

[0012] Optionally, the support component is in the shape of a spherical net.

[0013] Optionally, the suspension assembly includes:

[0014] A connecting rod, one end of which has a hook, and the other end is fixedly connected to a plurality of connecting wires, the end of which is away from the connecting rod being fixedly connected to the bearing component.

[0015] Secondly, this utility model also provides a suspension device for ceramic sintering, which includes:

[0016] Support frame; and

[0017] The suspended fixture for ceramic sintering as described in the first aspect is suspended from the support frame.

[0018] Optionally, the support frame includes:

[0019] A support frame is provided, and a hanging rod is provided inside the support frame, on which at least one of the suspended fixtures for ceramic sintering is suspended.

[0020] Optionally, a plurality of hanging rods are distributed at intervals within the support frame.

[0021] Optionally, the support frame has multiple support rods spaced apart, and multiple support frames are spaced apart along the axial direction of the support rods.

[0022] Optionally, the support rod is provided with wheels on the side closest to the ground.

[0023] The beneficial effects of this utility model are:

[0024] Firstly, by setting multiple first and second ring wires to form a supporting component, a receiving space is created, along with multiple through holes communicating with the receiving space. This results in a larger communication area between the receiving space and the external space, which is beneficial for gas flow and helps to ensure uniform heating of the ceramic to be sintered within the receiving space. Moreover, during long-term sintering operations, the first and second ring wires, due to their small size, experience less deformation after heating, and the size of the through holes is easily affected, thus maintaining uniform heating of the ceramic to be sintered during extended sintering operations. Therefore, when this suspended fixture for ceramic sintering is used in sintering operations, compared to fixtures composed of plate structures, this suspended fixture only uses multiple first and second ring wires, requiring less material and reducing costs. Furthermore, it ensures minimal deformation throughout the sintering process, ensuring uniform heating of the ceramic to be sintered, which is beneficial for improving the yield rate of the sintered ceramic.

[0025] Secondly, during the sintering process, the ceramic to be sintered is placed in a suspended fixture for ceramic sintering, and then the suspended fixture is suspended in a support frame. The support frame is then placed in the sintering furnace for sintering. During the operation, the suspended fixture can ensure that the ceramic to be sintered is heated evenly, which helps to improve the efficiency and quality of the sintering process. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the suspended tooling used for ceramic sintering in an embodiment of this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the suspension device used for ceramic sintering in an embodiment of this utility model.

[0028] In the picture:

[0029] 1. Load-bearing component; 11. First ring wire; 12. Second ring wire; 2. Suspension component; 21. Hook; 22. Connecting rod; 23. Connecting wire; 3. Support frame; 31. Support frame; 32. Hanging rod; 33. Support rod; 34. Wheel; 4. Ceramic to be sintered. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 only used for distinction in description and have no special meaning.

[0034] This embodiment discloses a suspended fixture and suspension device for ceramic sintering.

[0035] Reference Figure 1 As shown, the suspended fixture for ceramic sintering includes a support component 1 and a suspension component 2. The support component 1 has a receiving space for accommodating the ceramic 4 to be sintered. The upper side of the support component 1 has a feed port communicating with the receiving space. The support component 1 includes a plurality of first annular wires 11 and a plurality of second annular wires 12 spaced apart. The extension directions of the first annular wires 11 and the second annular wires 12 intersect to form a plurality of through holes communicating with the receiving space. One end of the suspension component 2 is connected to the support component 1, and the other end has a hook 21 for suspension.

[0036] Specifically, the multiple first annular wires 11 can be circular or polygonal, and similarly, the multiple second annular wires 12 can also be circular or polygonal. The angle between their extending directions is greater than 0°, so that the first annular wires 11 and the second annular wires 12 intersect and enclose to form a receiving space. The shape of the receiving space can be designed according to the shape of the ceramic to be sintered 4, and this application does not limit it. The upper side of the receiving space is open to form a feed inlet, which facilitates the placement of the ceramic to be sintered 4 into the receiving space. The suspension assembly 2 can be set at the feed inlet so that the first annular wires 11 and the second annular wires 12 at the feed inlet can be tightened during suspension, thereby successfully confining the ceramic to be sintered 4 within the receiving space. It should be understood that the suspension assembly 2 can also be set at other positions of the supporting assembly 1, as long as it can suspend the supporting assembly 1 to a designated position.

[0037] By setting multiple first ring wires 11 and second ring wires 12 to form a supporting component 1, a receiving space is formed, along with multiple through holes communicating with the receiving space. This results in a large communication area between the receiving space and the external space, which is beneficial for gas flow and helps the ceramic to be sintered 4 to be heated evenly within the receiving space. Moreover, during long-term sintering operations, the first ring wires 11 and second ring wires 12, due to their small size, have a smaller deformation range after heating, and the size of the through holes is easily affected, thus maintaining the uniform heating of the ceramic to be sintered 4 during long-term sintering operations. Therefore, when this suspended fixture for ceramic sintering is used in sintering operations, compared with fixtures composed of plate structures, this suspended fixture only uses multiple first ring wires 11 and second ring wires 12, requiring less material and having a lower cost. It can also ensure minimal deformation throughout the sintering process, ensuring uniform heating of the ceramic to be sintered 4, which is beneficial for improving the yield of the ceramic to be sintered 4.

[0038] Optionally, the extension directions of the first loop wire 11 and the second loop wire 12 are perpendicular.

[0039] Specifically, the first ring wire 11 is wound in a horizontal plane, while the second ring wire 12 is wound in a vertical plane, forming the support component 1 through a crisscrossing arrangement. This ensures that the ceramic 4 to be sintered is subjected to uniform stress when supported, which is beneficial to further improving the quality of the sintering process.

[0040] Optionally, both the first ring wire 11 and the second ring wire 12 are made of heat-resistant stainless steel.

[0041] Specifically, by using heat-resistant stainless steel to make the first ring wire 11 and the second ring wire 12, the entire bearing component 1 has good high-temperature resistance characteristics, ensuring that the first ring wire 11 and the second ring wire 12 will not soften or even fall off during the sintering process.

[0042] Optionally, the supporting component 1 is in the shape of a spherical net bag.

[0043] Specifically, the support component 1 has an overall spherical mesh-like structure, which forms a spherical receiving space inside to accommodate the spherical ceramic to be sintered 4. It should be understood that in other embodiments, the support component 1 may also be polygonal mesh-like to accommodate products of corresponding shapes.

[0044] Optionally, the suspension assembly 2 includes a connecting rod 22. One end of the connecting rod 22 has a hook 21, and the other end is fixedly connected to a plurality of connecting wires 23. The end of the connecting wires 23 away from the connecting rod 22 is fixedly connected to the load-bearing assembly 1.

[0045] Specifically, a connecting rod 22 can be installed directly above the feed inlet. Multiple connecting wires 23 are arranged around the lower end of the connecting rod 22. The end of each connecting wire 23 away from the connecting rod 22 is connected to either the first loop wire 11 or the second loop wire 12 located at the feed inlet. The connecting wires 23 are also made of heat-resistant stainless steel. The upper end of the connecting rod 22 has a connecting ring, and a hook 21 is hooked inside the connecting ring.

[0046] By setting the connecting rod 22, multiple connecting wires 23 are connected to the hook 21 together, and the hook 21 is kept at a certain distance from the bearing component 1, so that the heat during the sintering process is mainly concentrated in the bearing component 1, which helps to ensure that the temperature of the hook 21 part is kept within a safe range and reduces the possibility of suspension failure.

[0047] Reference Figure 2 The suspension device for ceramic sintering includes a support frame 3 and the aforementioned suspended fixture for ceramic sintering. The suspended fixture for ceramic sintering is suspended from the support frame 3.

[0048] During the sintering process, the ceramic to be sintered 4 is placed in a suspended fixture for ceramic sintering, and then the suspended fixture is suspended in the support frame 3. The support frame 3 is then placed in the sintering furnace for sintering. During the operation, the suspended fixture can ensure that the ceramic to be sintered 4 is heated evenly, which helps to improve the efficiency and quality of the sintering operation.

[0049] Optionally, the support frame 3 includes a support frame 31. A hanging rod 32 is provided within the support frame 31, and at least one suspended fixture for ceramic sintering is suspended from the hanging rod 32. Multiple hanging rods 32 are spaced apart within the support frame 31.

[0050] Specifically, the support frame 31 can be formed by sequentially splicing together multiple rod-shaped structures, which can be circular, triangular, square, or other polygonal shapes. The hanging rod 32 is elongated and can be cylindrical or square, capable of being hooked and fixed to the hook 21 of the suspended fixture used for ceramic sintering. To ensure the stability of the suspension, multiple hanging slots can be spaced apart on the hanging rod 32. The hanging slots can be V-shaped, and each hanging slot can be connected to a hook 21 to ensure that the suspended fixture does not shift during suspension. It should be understood that protruding structures such as limiting blocks can also be provided on the hanging rod 32 to replace the hanging slots, as long as they can effectively limit the hook 21. This application does not limit this.

[0051] By setting up the support frame 31, sufficient space is provided for the layout of multiple hanging rods 32. Multiple hanging fixtures can be suspended on each hanging rod 32, so as to effectively increase the number of ceramics 4 to be sintered that can be suspended on the support frame 3 in a single sintering operation, thereby effectively improving the efficiency of batch operation.

[0052] Optionally, multiple support rods 33 are spaced apart from each other in the support frame 31, and multiple support frames 31 are spaced apart along the axial direction of the support rods 33. A wheel 34 is provided on the side of the support rod 33 closest to the ground.

[0053] Specifically, a support rod 33 is fixedly installed on the lower side of the support frame 31. The support rod 33 extends vertically and can be integrally formed with the support frame 31, welded together, or fixed together by bolts or other structures. Multiple support frames 31 can be distributed at intervals between multiple support rods 33 to further increase the number of positions where the above-mentioned suspended tooling can be suspended.

[0054] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A suspension tool for sintering ceramics, characterized in that, include: The support assembly (1) has a receiving space for accommodating the ceramic (4) to be sintered. The upper side of the support assembly (1) has a feed port communicating with the receiving space. The support assembly (1) includes a plurality of first annular wires (11) spaced apart and a plurality of second annular wires (12) spaced apart. The extension directions of the first annular wires (11) and the second annular wires (12) intersect to form a plurality of through holes communicating with the receiving space. as well as The suspension assembly (2) is connected at one end to the bearing assembly (1) and at the other end has a hook (21) that can be suspended.

2. The suspended fixture for ceramic sintering according to claim 1, characterized in that, The first loop wire (11) is perpendicular to the extension direction of the second loop wire (12).

3. The suspension tool for sintering ceramics according to claim 1, wherein Both the first ring wire (11) and the second ring wire (12) are made of heat-resistant stainless steel.

4. The suspended fixture for ceramic sintering according to claim 1, characterized in that, The supporting component (1) is in the shape of a spherical net bag.

5. The suspended fixture for ceramic sintering according to any one of claims 1 to 4, characterized in that, The suspension assembly (2) includes: A connecting rod (22) has a hook (21) at one end and a plurality of connecting wires (23) fixedly connected to the other end. The end of the connecting wires (23) away from the connecting rod (22) is fixedly connected to the bearing assembly (1).

6. A suspension device for ceramic sintering, characterized in that, include: Support frame (3); as well as The suspended fixture for ceramic sintering as described in any one of claims 1 to 5 is suspended from the support frame (3).

7. The suspension device for ceramic sintering according to claim 6, characterized in that, The support frame (3) includes: A support frame (31) is provided inside the support frame (31), and a hanging rod (32) is provided inside the hanging rod (32), on which at least one of the suspended fixtures for ceramic sintering is suspended.

8. The suspension device for ceramic sintering according to claim 7, wherein Multiple hanging rods (32) are distributed at intervals within the support frame (31).

9. The suspension device for ceramic sintering according to claim 7, characterized in that, The support frame (31) has multiple support rods (33) spaced apart, and the support frames (31) are spaced apart along the axial direction of the support rods (33).

10. The suspension device for ceramic sintering according to claim 9, wherein The support rod (33) has a wheel (34) on the side closest to the ground.