A sintering device for producing a zirconia ceramic mobile phone back plate
Patent Information
- Application Number
- CN202521635236.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-03
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-08-03
AI Technical Summary
[0003]目前，在现有技术中，采用电加热或气体燃烧加热系统，通过加热元件如石英管加热、钨丝加热将炉内温度均匀地升高至所需烧结温度，将预热后的坯体放入烧结炉中，通过精确的温控系统加热至所需温度通常在1500°C到1700°C之间，并保持一段时间以促进致密化，在烧结过程中，控制气氛氧化气氛、还原气氛、真空等以防止陶瓷表面被氧化，烧结完成后，进行冷却，冷却过程要慢速进行，但是烧结装置存在一些缺陷：传统人工直接拉动炉门的方式，操作人员需近距离接触高温烧结炉，而炉门开启瞬间可能喷出高温热气或热浪，造成烫伤等安全事故
1、本实用新型通过伸缩液压缸驱动炉门主体自动开启，替代了人工直接拉动炉门的操作，减少了操作人员与高温烧结炉的直接接触，有效降低热气喷出时对操作人员造成烫伤的风险，可以快速、稳定地完成炉门的打开动作，减少因手动操作带来的误差和延迟，从而提高整体的工作效率。
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Figure CN224757529U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sintering equipment, specifically a sintering equipment for producing zirconia ceramic mobile phone back panels. Background Technology
[0002] As smartphone design continues to evolve, the materials used for phone back panels are increasingly pursuing high performance and aesthetics. Zirconia ceramic back panels, with their hardness, smoothness, and translucency, are gradually becoming the preferred material for high-end phones. These back panels not only improve the overall hardness of the phone and prevent scratches, but also present a smoother and more refined appearance. First, zirconia ceramic powder is molded into a green body through compression molding or injection molding. Then, it undergoes preheating treatment to remove moisture from the green body. The green body is then placed in a sintering furnace, and appropriate temperature and atmosphere conditions are set. Depending on different sintering requirements, the heating rate and constant temperature time are controlled. After sintering, the cooling rate is controlled to avoid cracks in the ceramic material due to excessive cooling. The furnace body is usually made of high-temperature resistant materials such as refractory bricks, refractory coatings, or special alloys to maintain a high-temperature environment.
[0003] Currently, existing technologies employ electric heating or gas combustion heating systems. Heating elements such as quartz tubes or tungsten wires are used to uniformly raise the furnace temperature to the required sintering temperature. The preheated blank is then placed into the sintering furnace and heated to the required temperature, typically between 1500°C and 1700°C, using a precise temperature control system. This temperature is maintained for a period to promote densification. During sintering, the atmosphere is controlled to prevent oxidation of the ceramic surface, such as oxidizing, reducing, or vacuum conditions. After sintering, cooling is performed slowly. However, the sintering equipment has some drawbacks: the traditional method of manually pulling the furnace door requires operators to be in close contact with the high-temperature sintering furnace, and the opening of the door may result in the release of high-temperature hot air or heat waves, causing burns and other safety accidents. Utility Model Content
[0004] The purpose of this invention is to provide a sintering apparatus for producing zirconia ceramic mobile phone back panels, so as to solve the problems mentioned in the background art.
[0005] The objective of this utility model can be achieved through the following technical solutions: A sintering apparatus for producing zirconia ceramic mobile phone back panels includes a base and a furnace door body. A heating mechanism is fixedly installed on the upper end of the base. A first connecting valve is fixedly installed on one side of the heating mechanism. A plurality of first connecting valves are fixedly connected to hot gas conveying pipes. A second connecting valve is fixedly installed at one end of each of the plurality of hot gas conveying pipes. A sintering furnace is fixedly installed at one end of each of the plurality of second connecting valves. A support platform is fixedly installed on the upper end of the heating mechanism. Support legs are fixedly connected at the four diagonal points of the upper end of the support platform. A sintering furnace is fixedly installed on the upper end of the four support legs. A ring plate is fixedly sleeved on one end of the sintering furnace. A sealing plate is fixedly connected to one end of the ring plate. A furnace door opening and closing assembly for opening and closing the furnace door body is provided on the outer wall of the ring plate. Locking assemblies are respectively provided on the lower ends of the outer walls of the furnace door body and the ring plate.
[0006] Preferably, the furnace door opening and closing assembly includes a fixing block, one end of which is fixedly installed at both ends of the outer wall of the ring plate. A first bearing is fixedly sleeved inside each of the two fixing blocks. A connecting block is fixedly sleeved on the inner ring of each of the two first bearings, and the two connecting blocks and the inner ring of the first bearing rotate inside their outer rings.
[0007] Preferably, one end of each of the two first bearings is fixedly connected to a telescopic hydraulic cylinder, the inside of each of the two telescopic hydraulic cylinders is slidably fitted with a telescopic guide rod, the upper end of each of the two telescopic guide rods is fixedly connected to a rotating rod, the outer side of one end of each of the two rotating rods is rotatably fitted with a first mounting block, the outer side of each of the two first mounting blocks is fixedly fitted with a second bearing, and one end of each of the two second bearings is fixedly installed on the outer wall of the furnace door body near both ends.
[0008] Preferably, a first connecting rod is fixedly connected to one end of the outer side of the furnace door body, and a movable hinge is rotatably connected inside the first connecting rod. The movable hinge is rotatably connected to a second mounting block, and the lower end of the second mounting block is fixedly connected to the upper outer side of the ring plate.
[0009] Preferably, the locking assembly includes a first guide lock block, the first guide lock block is fixedly connected to the outer end of the furnace door body away from the first connecting rod, and a second guide lock block is fixedly connected to the lower outer end of the ring plate. The first guide lock block and the second guide lock block are respectively provided with a first sliding groove and a second sliding groove inside.
[0010] Preferably, a locking block is slidably connected inside the first sliding groove of the first guide lock block, and a threaded rod is rotatably connected inside the locking block, with a handle fixedly connected to one end of the threaded rod.
[0011] Preferably, a threaded hole is provided on one side of the inner wall of the second sliding groove of the second guide lock block.
[0012] The beneficial effects of this utility model are: 1. This utility model uses a telescopic hydraulic cylinder to drive the furnace door body to open automatically, replacing the manual operation of pulling the furnace door directly. This reduces the direct contact between the operator and the high-temperature sintering furnace, effectively reducing the risk of burns to the operator when hot gas is ejected. It can quickly and stably complete the opening action of the furnace door, reducing errors and delays caused by manual operation, thereby improving the overall work efficiency.
[0013] 2. This utility model, by simultaneously embedding the locking block into the first sliding groove and the second sliding groove, and cooperating with the tight engagement of the threaded rod and the threaded hole, can firmly lock the furnace door body and the ring plate, effectively eliminating the gap between the furnace door and the furnace body, preventing the leakage of high-temperature gas in the furnace or the infiltration of external cold air during the sintering process, ensuring the temperature stability inside the furnace, and improving the sintering quality of the ceramic mobile phone back panel. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the ring plate and sealing plate of this utility model; Figure 3 This is a schematic diagram of the structure of the furnace door opening and closing assembly of this utility model; Figure 4 This is a structural schematic diagram of the disassembled locking component of this utility model.
[0015] The reference numerals in the attached figures are as follows: 1. Base; 2. Heating mechanism; 21. First connecting valve; 22. Hot gas conveying pipe; 23. Second connecting valve; 3. Support platform; 31. Support leg; 4. Sintering furnace; 41. Ring plate; 42. Sealing plate; 5. Furnace door opening and closing assembly; 51. Fixing block; 52. First bearing; 53. Connecting block; 54. Telescopic hydraulic cylinder; 55. Telescopic guide rod; 56. Rotating rod; 57. Second bearing; 58. Mounting block; 59. First connecting rod; 510. Movable hinge; 511. Second mounting block; 6. Locking assembly; 61. First guide lock block; 62. Second guide lock block; 63. First sliding groove; 64. Locking block; 65. Threaded rod; 66. Handle; 67. Second sliding groove; 68. Threaded hole; 7. Furnace door body. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0017] Please refer to Figure 1 and Figure 2 As shown, a sintering apparatus for producing zirconia ceramic mobile phone back panels includes a base 1 and a furnace door body 7. A heating mechanism 2 is fixedly installed on the upper end of the base 1. A first connecting valve 21 is fixedly installed on one side of the heating mechanism 2. A plurality of first connecting valves 21 are fixedly connected to hot gas conveying pipes 22. A second connecting valve 23 is fixedly installed at one end of the plurality of hot gas conveying pipes 22. A sintering furnace 4 is fixedly installed at one end of the plurality of second connecting valves 23. A support plate 3 is fixedly installed on the upper end of the heating mechanism 2. Support legs 31 are fixedly connected at the four diagonal points of the upper end of the support plate 3. A sintering furnace 4 is fixedly installed on the upper end of the four support legs 31. A ring plate 41 is fixedly sleeved on one end of the sintering furnace 4. A sealing plate 42 is fixedly connected to one end of the ring plate 41. A furnace door opening and closing assembly 5 for opening and closing the furnace door body 7 is provided on the outer wall of the ring plate 41. Locking assemblies 6 are respectively provided on the lower ends of the outer walls of the furnace door body 7 and the ring plate 41.
[0018] In a specific embodiment, the heating mechanism 2 on the base 1 generates hot air, which enters the sintering furnace 4 through the first connecting valve 21, the hot air delivery pipe 22, and the second connecting valve 23. The hot air is evenly distributed in the sintering furnace 4, heating the zirconia ceramic mobile phone back panel blank placed therein to reach the required sintering temperature, thereby achieving the densification process of the blank at high temperature. The heating mechanism 2 can generate heat through heating elements such as resistance wires. The furnace door opening and closing assembly 5 on the outer wall of the ring plate 41 is used to control the opening and closing of the furnace door body 7, making it convenient to put the zirconia ceramic mobile phone back panel blank to be sintered into the sintering furnace 4 and to take out the sintered product. When the furnace door is closed, the furnace door body 7 and the locking assembly 6 at the lower end of the outer wall of the ring plate 41 can lock the furnace door, so that the sintering furnace 4 is in a sealed state.
[0019] Please refer to Figures 1 to 3As shown, as a technical optimization of this utility model, the furnace door opening and closing assembly 5 includes a fixing block 51. One end of each fixing block 51 is fixedly installed at both ends of the outer wall of the ring plate 41. A first bearing 52 is fixedly sleeved inside each of the two fixing blocks 51. A connecting block 53 is fixedly sleeved on the inner ring of each of the two first bearings 52. The two connecting blocks 53 and the inner ring of the first bearings 52 rotate inside their outer rings. A telescopic hydraulic cylinder 54 is fixedly connected to one end of each of the two first bearings 52. A telescopic guide rod 55 is slidably sleeved inside each of the two telescopic hydraulic cylinders 54. A rotating rod 56 is fixedly connected to the upper end of each of the two telescopic guide rods 55. A first mounting block 58 is rotatably sleeved on the outer side of one end of each of the two rotating rods 56. A second bearing 57 is fixedly sleeved on the outer side of each of the two first mounting blocks 58. One end of each of the two second bearings 57 is fixedly installed on the outer wall of the furnace door body 7 near both ends.
[0020] Furthermore, a first connecting rod 59 is fixedly connected to one end of the outer side of the furnace door body 7. A movable hinge 510 is rotatably connected inside the first connecting rod 59. A second mounting block 511 is rotatably connected to the movable hinge 510. The lower end of the second mounting block 511 is fixedly connected to the upper outer side of the ring plate 41.
[0021] In a specific embodiment, when the sintering furnace 4 has finished sintering the zirconia ceramic mobile phone back panel, and it is necessary to remove the ceramic mobile phone back panel, the telescopic hydraulic cylinder 54 is activated, and the telescopic guide rod 55 inside it extends outward. The telescopic guide rod 55 pushes the rotating rod 56, causing the rotating rod 56 to rotate around the first mounting block 58 and the second bearing 57. The thrust of the rotating rod 56 is transmitted to the furnace door body 7 through the second bearing 57 and the first mounting block 58. Under the action of the thrust, the furnace door body 7 rotates outward around the movable hinge 510 as the axis, thereby opening the furnace door. During this process, the connecting block 53 rotates flexibly through the first bearing 52 along with the movement of the telescopic hydraulic cylinder 54.
[0022] Please refer to Figure 1 and Figure 2 , Figure 4 As shown, as a technical optimization of this utility model, the locking component 6 includes a first guide locking block 61. The first guide locking block 61 is fixedly connected to the outer side of the furnace door body 7 away from the first connecting rod 59. The lower outer side of the ring plate 41 is fixedly connected to a second guide locking block 62. The first guide locking block 61 and the second guide locking block 62 are respectively provided with a first sliding groove 63 and a second sliding groove 67. A locking block 64 is slidably connected inside the first sliding groove 63 of the first guide locking block 61. A threaded rod 65 is rotatably connected inside the locking block 64. A handle 66 is fixedly connected to one end of the threaded rod 65. A threaded hole 68 is provided on one side of the inner wall of the second sliding groove 67 of the second guide locking block 62.
[0023] In a specific embodiment, after the furnace door is closed, the first guide locking block 61 and the second guide locking block 62 are aligned, and the first sliding groove 63 and the second sliding groove 67 are on the same straight line. The handle 66 is rotated in the opposite direction, causing the threaded rod 65 to move towards the second guide locking block 62. At this time, the locking block 64 will continue to rotate the handle 66 under the push of the threaded rod 65. The threaded rod 65 will be screwed into the threaded hole 68 on the inner wall of the second sliding groove 67 and tightened, so that the locking block 64 is firmly fixed between the two grooves, thereby locking the furnace door body 7 and the ring plate 41 together.
[0024] When this utility model is in use, after the sintering furnace 4 has finished sintering the zirconia ceramic mobile phone back panel, and it is necessary to remove the ceramic mobile phone back panel, the telescopic hydraulic cylinder 54 is activated. Its internal telescopic guide rod 55 extends outward, pushing the rotating rod 56, causing the rotating rod 56 to rotate around the first mounting block 58 and the second bearing 57. The thrust of the rotating rod 56 is transmitted to the furnace door body 7 through the second bearing 57 and the first mounting block 58. Under the action of the thrust, the furnace door body 7 rotates outward around the movable hinge 510 as the axis, thus opening the furnace door. During this process, the connecting block 53 extends accordingly. The hydraulic cylinder 54 rotates flexibly through the first bearing 52. After the furnace door is closed, the first guide lock block 61 and the second guide lock block 62 are aligned, and the first sliding groove 63 and the second sliding groove 67 are on the same straight line. The handle 66 is rotated in the opposite direction, causing the threaded rod 65 to move towards the second guide lock block 62. At this time, the locking block 64 will continue to rotate the handle 66 under the push of the threaded rod 65. The threaded rod 65 will be screwed into the threaded hole 68 on the inner wall of the second sliding groove 67 and tightened, so that the locking block 64 is firmly fixed between the two grooves, thereby locking the furnace door body 7 and the ring plate 41 together.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A sintering apparatus for producing zirconia ceramic mobile phone back panels, characterized in that: The furnace includes a base (1) and a furnace door body (7). A heating mechanism (2) is fixedly installed on the upper end of the base (1). A first connecting valve (21) is fixedly installed on one side of the heating mechanism (2). A plurality of first connecting valves (21) are fixedly connected to hot gas conveying pipes (22). A second connecting valve (23) is fixedly installed at one end of a plurality of hot gas conveying pipes (22). A sintering furnace (4) is fixedly installed at one end of a plurality of second connecting valves (23). A support plate is fixedly installed on the upper end of the heating mechanism (2). 3) Support legs (31) are fixedly connected to the four opposite corners of the upper end of the support platform (3). A sintering furnace (4) is fixedly installed on the upper end of the four support legs (31). A ring plate (41) is fixedly sleeved on one end of the sintering furnace (4). A sealing plate (42) is fixedly connected to one end of the ring plate (41). A furnace door opening and closing assembly (5) for opening and closing the furnace door body (7) is provided on the outer wall of the ring plate (41). Locking assemblies (6) are respectively provided on the lower end of the outer wall of the furnace door body (7) and the ring plate (41).
2. The sintering apparatus for producing zirconia ceramic mobile phone back panels according to claim 1, characterized in that: The furnace door opening and closing assembly (5) includes a fixing block (51). One end of each fixing block (51) is fixedly installed at both ends of the outer wall of the ring plate (41). The two fixing blocks (51) are each fixedly sleeved with a first bearing (52). The inner rings of the two first bearings (52) are each fixedly sleeved with a connecting block (53). The two connecting blocks (53) and the inner rings of the first bearings (52) rotate inside their outer rings.
3. The sintering apparatus for producing zirconia ceramic mobile phone back panels according to claim 2, characterized in that: One end of each of the two first bearings (52) is fixedly connected to a telescopic hydraulic cylinder (54). The inside of each of the two telescopic hydraulic cylinders (54) is slidably fitted with a telescopic guide rod (55). The upper end of each of the two telescopic guide rods (55) is fixedly connected to a rotating rod (56). The outer side of one end of each of the two rotating rods (56) is rotatably fitted with a first mounting block (58). The outer side of each of the two first mounting blocks (58) is fixedly fitted with a second bearing (57). One end of each of the two second bearings (57) is fixedly installed on the outer wall of the furnace door body (7) near both ends.
4. The sintering apparatus for producing zirconia ceramic mobile phone back panels according to claim 3, characterized in that: A first connecting rod (59) is fixedly connected to one end of the outer side of the furnace door body (7). A movable hinge (510) is rotatably connected inside the first connecting rod (59). A second mounting block (511) is rotatably connected to the movable hinge (510). The lower end of the second mounting block (511) is fixedly connected to the upper outer side of the ring plate (41).
5. The sintering apparatus for producing zirconia ceramic mobile phone back panels according to claim 4, characterized in that: The locking assembly (6) includes a first guide lock block (61). The first guide lock block (61) is fixedly connected to the outer end of the furnace door body (7) away from the first connecting rod (59). The lower outer end of the ring plate (41) is fixedly connected to a second guide lock block (62). The first guide lock block (61) and the second guide lock block (62) are respectively provided with a first sliding groove (63) and a second sliding groove (67).
6. The sintering apparatus for producing zirconia ceramic mobile phone back panels according to claim 5, characterized in that: A locking block (64) is slidably connected inside the first sliding groove (63) of the first guide locking block (61), and a threaded rod (65) is rotatably connected inside the locking block (64), and a handle (66) is fixedly connected to one end of the threaded rod (65).
7. The sintering apparatus for producing zirconia ceramic mobile phone back panels according to claim 5, characterized in that: A threaded hole (68) is provided on one side of the inner wall of the second sliding groove (67) of the second guide lock block (62).