High-temperature hanging piece for the interior of a ceramic sintering furnace
By designing a positioning mechanism with a support sleeve and hollow hanging rod in the ceramic sintering furnace, the problem of stable positioning of the green blank under high-temperature airflow and vibration environment was solved, the risk of green blank breakage was reduced, and the substrate was stably supported and easily disassembled.
Patent Information
- Application Number
- CN202521881014.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-02
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-02
AI Technical Summary
Existing high-temperature brackets in ceramic sintering furnaces cannot effectively protect unfixed ceramic green bodies when dealing with high-speed airflow and mechanical vibration inside the furnace, leading to displacement, tilting, or collision of the green bodies and posing a risk of breakage.
A high-temperature hanger consisting of a support sleeve and a hollow hanging rod was designed. The hollow hanging rod is equipped with a positioning mechanism. Through the cooperation of a rotating sleeve, a push rod, a guide pin and a clamping plate, the substrate is tightened and positioned to prevent the green blank from colliding due to airflow or vibration during sintering.
This effectively reduces the risk of breakage of the green blank during sintering, ensures stable positioning of the substrate in a high-temperature environment, and facilitates subsequent disassembly and removal.
Smart Images
Figure CN224681263U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sintering furnace hangers, and more particularly to a high-temperature hanger for the interior of a ceramic sintering furnace. Background Technology
[0002] High-temperature co-fired ceramic technology is a key technology in modern electronic packaging, sensor manufacturing and other fields. This technology mixes ceramic powder with additives such as solvents, binders and dispersants to form a slurry, and then performs a series of molding, drilling and printing processes before finally sintering at high temperature. In the sintering process, the substrate needs to be hung on a hanger to realize the sintering process of the substrate inside the sintering furnace.
[0003] However, modern high-performance sintering furnaces often employ forced convection designs, utilizing high-speed circulating heating gas to ensure temperature uniformity and atmosphere control within the furnace. Existing hanging structures provide insufficient lateral constraint on the green blanks placed upon them and the firing plates below. When high-speed airflow passes through the hanging structures and green blanks, significant airflow impact forces and turbulence are generated. These forces act directly on the not fully stabilized green blanks, potentially causing displacement, tilting, or even collisions. Therefore, existing high-temperature hanging structures for ceramic sintering furnaces are significantly inadequate in coping with high-speed airflow and unavoidable mechanical vibrations within the furnace, failing to provide adequate disturbance protection for the fragile ceramic green blanks. Utility Model Content
[0004] In view of this, the purpose of this utility model is to propose a high-temperature hanger for the interior of a ceramic sintering furnace to solve the technical problems in the prior art.
[0005] To achieve the above objectives, this utility model provides a high-temperature hanging component for the interior of a ceramic sintering furnace, including a support sleeve, wherein several hollow hanging rods are fixedly installed at the upper and lower ends of the support sleeve.
[0006] The hollow hanging rod is provided with a positioning mechanism for tightening the mounting holes of the substrate; The positioning mechanism includes: a rotating sleeve, which is rotatably installed inside the hollow hanging rod, with a first arc-shaped guide groove on the outer wall of one end and three second arc-shaped guide grooves equidistantly arranged along the circumference on the surface of the other end; The push rod is horizontally inserted through the middle of the rotating sleeve; A guide pin has one end fixed to the surface of the push rod and the other end passing through the first arc-shaped guide groove and slidably connected to the guide plate, which is fixed to the inner wall of the hollow hanging rod. Three clamping plates are slidably installed in the corresponding second arc-shaped guide grooves, and one end of the clamping plate extends to the outside through the through groove of the hollow hanging rod. The reset component is located at one end of the push rod.
[0007] Preferably, the number of hollow hanging rods is four, with two hollow hanging rods forming a group, and the two groups of hollow hanging rods are fixed to the upper and lower ends of the support sleeve in an alternating manner.
[0008] Preferably, the inner wall of the through groove is symmetrically equipped with ball bearings, and the two sides of the clamping plate are provided with sliding grooves that cooperate with the ball bearings.
[0009] Preferably, the reset assembly includes a positioning ring, a fixing ring, and a first spring; The positioning ring is fixed to the inner wall of the hollow hanging rod and fitted onto the surface of the push rod. The retaining ring is fixed to the surface of the push rod; The first spring is fitted onto the surface of the push rod, with its two ends abutting against the fixing ring and the positioning ring, respectively.
[0010] Preferably, the high-temperature hanger further includes a disassembly mechanism, which includes a connecting ring, a pressure rod, a conical block, a mounting ring, and a second spring; The connecting ring is fixed to the inner wall of the support sleeve; The pressure rod has a movable connecting ring, with a fixed mounting ring in its middle section; The conical block is fixed to the upper and lower ends of the pressure rod and overlaps one end of the corresponding push rod. The second spring is fitted onto the pressure rod, with its two ends abutting against the bottom of the mounting ring and the top of the connecting ring, respectively.
[0011] Preferably, the high-temperature hanger further includes a locking assembly, which includes a locking pin and a third spring; The locking pin movably penetrates the side wall of the support sleeve, and one end of it is set as a slope. The third spring is fitted onto one end of the locking pin, with its two ends respectively abutting against the locking pin and the inner wall of the support sleeve. The mounting ring has a bottom side that mates with the bevel of the locking pin.
[0012] Preferably, the conical surface of the conical block is in line contact with the end of the push rod.
[0013] Preferably, the lower end of the support sleeve is fixed with a threaded sleeve, and the upper end of the support sleeve is provided with a thread that mates with the threaded sleeve.
[0014] The beneficial effects of this utility model are as follows: The high-temperature hanging component inside the ceramic sintering furnace of this utility model, through the setting of hollow hanging rods and positioning mechanisms, supports and positions the hanging holes of the substrate, preventing the unfixed green blank from being disturbed by airflow or mechanical vibration in the sintering furnace during sintering, which could lead to collision and damage, thereby reducing the risk of green blank breakage. With the inclusion of components such as positioning and disassembly mechanisms, and in conjunction with locking components, the positioning of the substrate can be released by all positioning mechanisms, facilitating the removal of the substrate. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a schematic diagram of the main cross-section of the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram of a partial structure of the rotating sleeve, push rod, and clamping plate of this utility model; Figure 6 This is an exploded view of a portion of the structure of the first arc-shaped guide groove, guide plate, and slide groove of this utility model.
[0017] The diagram is marked as follows: 1. Support sleeve; 2. Hollow hanging rod; 3. Positioning mechanism; 301. Rotating sleeve; 3011. First arc-shaped guide groove; 302. Push rod; 3021. Guide pin; 303. Guide plate; 304. Second arc-shaped guide groove; 305. Through groove; 306. Clamping plate; 3061. Sliding groove; 307. Reset assembly; 3071. Positioning ring; 3072. Fixing ring; 3073. First spring; 4. Disassembly mechanism; 401. Connecting ring; 402. Pressure rod; 403. Conical block; 404. Mounting ring; 405. Second spring; 5. Locking assembly; 501. Locking pin; 502. Third spring. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.
[0019] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0020] The first aspect of this utility model proposes a high-temperature hanger for the interior of a ceramic sintering furnace, such as... Figure 1-6 As shown, it includes a support sleeve 1, and several hollow hanging rods 2 are fixedly installed at the upper and lower ends of the support sleeve 1.
[0021] The hollow hanging rod 2 is equipped with a positioning mechanism 3 for tightening the mounting holes of the substrate; The positioning mechanism 3 includes: a rotating sleeve 301, which is rotatably installed inside the hollow hanging rod 2. One end of its outer wall is provided with a first arc-shaped guide groove 3011, and the other end surface is provided with three second arc-shaped guide grooves 304 at equal intervals along the circumference. Push rod 302 is horizontally inserted through the middle of rotating sleeve 301; The guide pin 3021 has one end fixed to the surface of the push rod 302, and the other end passes through the first arc-shaped guide groove 3011 and is slidably connected to the guide plate 303. The guide plate 303 is fixed to the inner wall of the hollow hanging rod 2. A movable groove is opened on the side of the guide plate 303 near the guide pin 3021. The other end of the guide pin 3021 is slidably installed in the movable groove. The stability of the movement of the guide pin 3021 is further improved by the guide pin 3021 slidingly installed in the movable groove. Three clamping plates 306 are slidably installed in the corresponding second arc-shaped guide grooves 304, and one end of the clamping plate 306 extends to the outside through the through groove 305 on the outer wall of the hollow hanging rod 2; one end of the clamping plate 306 is set in an arc shape to increase the contact surface with the mounting hole of the substrate and improve stability.
[0022] The reset component 307 is located at one end of the push rod 302.
[0023] In the use of high-temperature hangers inside ceramic sintering furnaces, when it is necessary to disassemble or assemble a single substrate on the high-temperature hanger, by pulling the other end of the push rod 302, the push rod 302 is moved away from the conical block 403. At this time, the guide pin 3021 on the push rod 302, under the guidance of the guide plate 303, forcibly drives the rotating sleeve 301 to deflect along the slotting direction of the first arc-shaped guide groove 3011, causing the rotating sleeve 301 to rotate. Since the distance from the two ends of the second arc-shaped guide groove 304 to the center of the rotating sleeve 301 is not equal, the second arc-shaped guide groove 304 at the end of the rotating sleeve 301 rotates. The clamping plate 306 slidably installed inside the second arc-shaped guide groove 304... As the distance between the center of the rotating sleeve 301 changes, the three equidistant clamping plates 306 simultaneously move closer to the center of the rotating sleeve 301 and, guided by the through slot 305, retract into the interior of the hollow hanging rod 2. At this point, the substrate can be fitted onto the surface of the hollow hanging rod 2 through the surface hanging hole. Then, the push rod 302 is released, and under the elastic reset of the reset component 307, the rotating sleeve 301 rotates in the opposite direction, causing the three clamping plates 306 to move out of the through slot 305 simultaneously and tighten and position the hanging hole of the substrate. This prevents the substrate from being disturbed by airflow or mechanical vibration in the sintering furnace during sintering, which could lead to collision damage and reduce the risk of the substrate breaking.
[0024] In this embodiment, there are four hollow hanging rods 2, with two hollow hanging rods 2 forming a group. The two groups of hollow hanging rods 2 are fixed to the upper and lower ends of the support sleeve 1 in an alternating manner. The two groups of hollow hanging rods 2 at the upper and lower ends of the support sleeve 1 are arranged at a 90-degree angle, which can be used to hang long substrates during substrate sintering and avoid collisions between adjacent substrates.
[0025] In this embodiment: ball bearings are symmetrically installed on the inner wall of the through groove 305, and sliding grooves 3061 that cooperate with the ball bearings are opened on both sides of the clamping plate 306.
[0026] As the rotating sleeve 301 drives the second arc-shaped guide groove 304 at the other end to rotate, the clamping plate 306 slidably installed in the second arc-shaped guide groove 304 moves along the slide groove 3061 toward the outside of the hollow hanging rod 2, so that the clamping plate 306 supports and fixes the hanging hole on the substrate.
[0027] In this embodiment: the reset assembly 307 includes a positioning ring 3071, a fixing ring 3072, and a first spring 3073; Positioning ring 3071 is fixed to the inner wall of hollow hanging rod 2 and fitted onto the surface of push rod 302; The retaining ring 3072 is fixed to the surface of the push rod 302; The first spring 3073 is fitted onto the surface of the push rod 302, with its two ends abutting against the fixing ring 3072 and the positioning ring 3071, respectively.
[0028] After the second spring 405 elastically resets and pushes the mounting ring 404 upward, the surface of the conical block 403 releases the pressure on one end of the push rod 302. At this time, the first spring 3073 is released from the pressure state and elastically resets, causing the first spring 3073 to push the fixing ring 3072 closer to the conical block 403. At the same time, the guide pin 3021 on the push rod 302 moves and resets. Under the guidance of the first arc-shaped guide groove 3011, it drives the rotating sleeve 301 to rotate. The clamping plate 306, which is equidistantly slidably installed at the end of the rotating sleeve 301, moves out from the inside of the hollow hanging rod 2 along the through groove 305, which can tighten the hanging hole on the substrate.
[0029] In this embodiment, the high-temperature hanger also includes a disassembly mechanism 4, which includes a connecting ring 401, a pressure rod 402, a conical block 403, a mounting ring 404, and a second spring 405. Connecting ring 401 is fixed to the inner wall of support sleeve 1; Pressure bar 402, movable through connecting ring 401, central fixed mounting ring 404; The conical block 403 is fixed to the upper and lower ends of the pressure rod 402 and overlaps one end of the corresponding push rod 302 respectively; The second spring 405 is fitted onto the pressure rod 402, with its two ends abutting against the bottom of the mounting ring 404 and the top of the connecting ring 401, respectively. One end of the push rod 302 is designed as an arc surface that mates with the trapezoidal surface of the conical block 403. When the conical block 403 moves downward, it compresses one end of the push rod 302, reducing interference.
[0030] When it is necessary to release the restriction on the mounting ring 404, the locking pin 501 is pulled to move it away from the mounting ring 404, so that the bottom of the locking pin 501 releases the restriction on the mounting ring 404. Under the elastic reset of the second spring 405, the mounting ring 404 moves upward and resets. At this time, all the clamping plates 306 are moved out from the corresponding through slots 305.
[0031] In this embodiment: the high-temperature hanger also includes a locking assembly 5, which includes a locking pin 501 and a third spring 502; Locking pin 501 is movable through the side wall of support sleeve 1, and one end of it is set as a slope. When the mounting ring 404 is lowered into place, the bottom side of the mounting ring 404 will press against the slope of one end of the locking pin 501, thereby pressing the locking pin 501 to move away from the mounting ring 404.
[0032] The third spring 502 is fitted onto one end of the locking pin 501, with its two ends respectively abutting against the locking pin 501 and the inner wall of the support sleeve 1. The mounting ring 404 has a bottom side that mates with the bevel of the locking pin 501.
[0033] After the substrate is sintered, when it is necessary to release the substrate from the mounting bracket, pressing the pressure rod 402 causes the surfaces of the tapered blocks 403 at both ends of the pressure rod 402 to press against the corresponding ends of the push rod 302. The push rod 302 moves away from the tapered blocks 403. At this time, the guide pin 3021 on the push rod 302, under the guidance of the guide plate 303, forcibly drives the rotating sleeve 301 to deflect along the slotting direction of the first arc-shaped guide groove 3011, causing the rotating sleeve 301 to rotate. The three equidistant sections slidably installed inside the second arc-shaped guide groove 304... The cloth clamp 306 simultaneously moves closer to the center of the rotating sleeve 301, releasing the positioning of the substrate. As the pressure rod 402 descends, the bottom side of the mounting ring 404 fixed on the pressure rod 402 presses against the inclined surface of the locking pin 501, pushing the locking pin 501 to move. When the inclined surface of one end of the locking pin 501 is released from pressing against the bottom of the mounting ring 404, the third spring 502 is elastically reset after being stressed, driving the locking pin 501 to lock the movement of the mounting ring 404. At this time, all positioning mechanisms 3 release the positioning of the substrate, making it easier to remove the substrate.
[0034] In this embodiment, the conical surface of the conical block 403 is in line contact with the end of the push rod 302.
[0035] In this embodiment: a threaded sleeve is fixed at the lower end of the support sleeve 1, and a thread that mates with the threaded sleeve is provided at the upper end. When the height of the high-temperature hanger inside the ceramic sintering furnace is increased according to production needs, the bottom thread of another hanger can be installed on the top of the corresponding hanger, realizing the splicing of multiple hangers and enhancing practicality.
[0036] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0037] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A high-temperature hanging component for the interior of a ceramic sintering furnace, comprising a support sleeve (1), wherein a plurality of hollow hanging rods (2) are fixedly installed at the upper and lower ends of the support sleeve (1), characterized in that: The hollow hanging rod (2) is provided with a positioning mechanism (3) for tightening the mounting holes of the substrate; The positioning mechanism (3) includes: a rotating sleeve (301), which is rotatably installed inside the hollow hanging rod (2), with a first arc-shaped guide groove (3011) on the outer wall of one end and three second arc-shaped guide grooves (304) equidistantly arranged along the circumference on the surface of the other end. The push rod (302) is horizontally inserted through the middle of the rotating sleeve (301); The guide pin (3021) is fixed at one end to the surface of the push rod (302), and the other end passes through the first arc-shaped guide groove (3011) and is slidably connected to the guide plate (303). The guide plate (303) is fixed to the inner wall of the hollow hanging rod (2). Three clamping plates (306) are slidably installed in the corresponding second arc-shaped guide grooves (304), and one end of the clamping plate (306) extends to the outside through the through groove (305) on the outer wall of the hollow hanging rod (2); The reset component (307) is located at one end of the push rod (302).
2. The high-temperature hanger for the interior of a ceramic sintering furnace according to claim 1, characterized in that, The number of hollow hanging rods (2) is four. Two hollow hanging rods (2) form a group, and the two groups of hollow hanging rods (2) are fixed to the upper and lower ends of the support sleeve (1) in an alternating manner.
3. The high-temperature hanger for the interior of a ceramic sintering furnace according to claim 1, characterized in that, The inner wall of the through groove (305) is symmetrically equipped with ball bearings, and the two sides of the clamp plate (306) are provided with sliding grooves (3061) that cooperate with the ball bearings.
4. The high-temperature hanger for the interior of a ceramic sintering furnace according to claim 1, characterized in that, The reset assembly (307) includes a positioning ring (3071), a fixing ring (3072), and a first spring (3073). The positioning ring (3071) is fixed to the inner wall of the hollow hanging rod (2) and fitted onto the surface of the push rod (302); The retaining ring (3072) is fixed to the surface of the push rod (302); The first spring (3073) is fitted onto the surface of the push rod (302), with its two ends abutting against the fixing ring (3072) and the positioning ring (3071) respectively.
5. The high-temperature hanger for the interior of a ceramic sintering furnace according to claim 4, characterized in that, The high-temperature hanger also includes a disassembly mechanism (4), which includes a connecting ring (401), a pressure rod (402), a conical block (403), a mounting ring (404), and a second spring (405). The connecting ring (401) is fixed to the inner wall of the support sleeve (1); The pressure bar (402), the movable through-connecting ring (401), and the central fixed mounting ring (404); The conical block (403) is fixed to the upper and lower ends of the pressure rod (402) and overlaps one end of the corresponding push rod (302); The second spring (405) is fitted onto the pressure rod (402), with its two ends abutting against the bottom of the mounting ring (404) and the top of the connecting ring (401), respectively.
6. The high-temperature hanger for the interior of a ceramic sintering furnace according to claim 5, characterized in that, The high-temperature hanger also includes a locking assembly (5), which includes a locking pin (501) and a third spring (502). The locking pin (501) is movably inserted through the side wall of the support sleeve (1), and one end of it is set as an inclined surface; The third spring (502) is fitted onto one end of the locking pin (501), and its two ends abut against the inner wall of the locking pin (501) and the support sleeve (1), respectively. The mounting ring (404) has its bottom side engaged with the inclined surface of the locking pin (501).
7. The high-temperature hanger for the interior of a ceramic sintering furnace according to claim 5, characterized in that, The conical surface of the conical block (403) is in line contact with the end of the push rod (302).
8. The high-temperature hanger for the interior of a ceramic sintering furnace according to claim 1, characterized in that, The lower end of the support sleeve (1) is fixed with a threaded sleeve, and the upper end of the support sleeve is provided with a thread that mates with the threaded sleeve.