Compression molding device for hydroxyapatite biological ceramic production

Abstract

According to the technical scheme, the compression molding device is characterized by comprising a supporting table, a mold groove is formed in the top face of the supporting table, an air cylinder is fixedly installed on one side of the supporting table, a top cover is arranged on the top face of the supporting table, and the mold groove is formed in the top face of the supporting table. The top cover is fixedly connected with an output shaft of the air cylinder; during use, the cross-shaped rubber block is made of a rubber material, so that the pores are in a closed state, the hydroxyapatite biological ceramic material cannot sink into the pores after entering the mold groove, meanwhile, the situation that subsequent compression molding is irregular due to bending of the cross-shaped rubber block is avoided through supporting of the metal supporting plate, and after compression molding is completed, the cross-shaped rubber block is not prone to falling into the pores. At the moment, a water pump can be started to pump cooling liquid, the cooling liquid is sprayed out through a connecting pipe and opens pores to be sprayed to a finished product, meanwhile, through the effect of the cooling liquid, the finished product is separated through pushing force generated by the cooling liquid while the finished product is cooled, the demolding effect is achieved, and the shape of the finished product is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of biomaterials, in particular to a compression molding device for producing hydroxyapatite bioceramics. Background Art

[0002] Hydroxyapatite bioceramics is a bioactive ceramic material, commonly used in orthopedic applications in the medical field. It is a synthetic calcium-phosphorus compound with a chemical composition and structure similar to natural bones, so it has good biocompatibility and bioactivity. Since implanted ceramics are in direct contact with the organism, they are required to have good affinity with the organism and not produce toxic erosion and decomposition products; they do not cause biological cells to mutate or necrotize, or cause inflammation and granulation growth; they have good functions in the body for long-term use, have no carcinogenic effect on the organism, and do not deteriorate themselves; they are easy to sterilize. Commonly used implant ceramics include alumina ceramics and single crystal alumina, calcium phosphate ceramics, microcrystalline glass, zirconium oxide sintered bodies, etc. They are used clinically as artificial teeth, artificial bones, artificial heart valves, artificial blood vessels and other medical artificial tracheal transdermal joints.

[0003] According to the Chinese patent application number: CN202321760694.X, a compression molding device for the production of hydroxyapatite bioceramics includes a production table and a leg fixedly connected to the bottom wall of the production table, and also includes: a lifting component, the lifting component includes a material storage frame fixedly connected to the top wall of the production table, the inner wall of the material storage frame is slidably connected with a lifting block, and the lifting block is symmetrically arranged with respect to the central axis of the material storage frame. A group of top plates are fixedly connected to the top wall of the two groups of lifting blocks, and a slide groove is provided on the top wall of the production table, and a guide block is slidably connected to the side wall of the slide groove, and the guide block is matched with the top plate; a feeding component is connected to the top wall of the production table, and the feeding component cooperates with the material storage frame, and the guide rod is driven to slide in the guide groove by the supporting block, thereby driving the guide plate to move under the action of the guide groove and the tension spring, and at the same time, the guide block is driven to move by the guide plate, and the top plate is pressed upward by the guide block, and the lifting block is lifted by the top plate, so that the molded material is lifted, which is beneficial to improve the safety of operation.

[0004] However, the above-mentioned equipment still has some shortcomings. For example, the above-mentioned equipment uses a cylinder to push the support plate upward to lift the molded material to achieve the demolding effect. However, the installation of the cylinder shaft or the support plate requires opening a hole in the mold. Therefore, the material may fall into the gap during molding, resulting in irregularity of the finished product. At the same time, direct lifting may also destroy the shape of the finished product. In order to solve the above problems, we propose a molding device for the production of hydroxyapatite bioceramics. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a compression molding device for producing hydroxyapatite bioceramics, which solves the problems raised in the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A compression molding device for producing hydroxyapatite bioceramics comprises: a support table, a top surface of which is provided with a mold groove, a cylinder fixedly mounted on one side of the support table, a top cover provided on the top surface of the support table, and the top cover is fixedly connected to the output shaft of the cylinder; and a demolding assembly, which is provided on the top surface of the top cover and is used for demolding.

[0008] By adopting the above technical solution, a cylinder is set to adjust the height of the top cover to close the mold groove and cooperate with subsequent compression molding.

[0009] Preferably, the demolding assembly includes: a feeder, which is fixedly mounted on the top surface of the top cover, a feed hole is opened on the top surface of the top cover, a feed pipe is fixedly mounted inside the feed hole, and the feed pipe is fixedly mounted together with the discharge end of the feeder.

[0010] By adopting the above technical solution, a feeder is provided to transport the hydroxyapatite bioceramic material through a feed pipe into a mold groove for compression molding.

[0011] Preferably, the demolding assembly also includes: a cross hole, the cross hole is opened on the bottom surface of the mold groove, a cross rubber block is arranged inside the cross hole, a metal support plate is fixedly installed on the outer side of the cross rubber block, the metal support plate is fixedly installed together with the inner wall of the cross hole, a plurality of fine holes are opened on the top surface of the cross rubber block, a bottom groove is opened on the bottom surface of the cross hole, and the bottom groove is connected with the fine holes.

[0012] By adopting the above technical solution, by setting fine holes, when in use, since the cross rubber block is made of rubber material, the fine holes are in a closed state. When the hydroxyapatite bioceramic material enters the mold groove, it will not fall into the fine holes. At the same time, it can be supported by the metal support plate to avoid bending of the cross rubber block and cause irregular subsequent molding.

[0013] Preferably, the film removal assembly also includes: a bottom frame, the bottom frame is fixedly installed on the bottom surface of the support platform, a water pump is fixedly installed inside the bottom frame, a connecting pipe is fixedly installed inside the bottom trough, and the connecting pipe is fixedly connected to the water outlet end of the water pump.

[0014] By adopting the above technical solution and setting a water pump, after the compression molding is completed, the water pump can be turned on to extract the coolant, so that the coolant is sprayed out through the connecting pipe and opens the fine holes to spray onto the finished product. At the same time, the coolant can be used to cool the finished product while generating a driving force to separate the finished product to achieve the demolding effect and prevent the shape of the finished product from being damaged.

[0015] Preferably, a water tank is fixedly installed inside the bottom frame, an outer hole is opened on one side of the water tank, a water pumping pipe is fixedly installed inside the outer hole, and the water pumping pipe is fixedly installed together with the water inlet end of the water pump.

[0016] By adopting the above technical solution, a water tank is provided to store coolant, and the coolant can be extracted through a pumping pipe and an auxiliary water pump, thereby increasing practicality.

[0017] Preferably, a sealing ring is fixedly mounted on the top surface of the support platform.

[0018] By adopting the above technical solution and providing a sealing ring, the closing degree between the top cover and the mold groove is increased to prevent material leakage.

[0019] In summary, the utility model mainly has the following beneficial effects:

[0020] A cylinder is provided to adjust the height of the top cover to close the mold slot for subsequent compression molding, and a feeder is provided to convey the hydroxyapatite bioceramic material through a feeder pipe into the mold slot for compression molding.

[0021] By setting the fine holes, the cross rubber block is made of rubber material and thus the fine holes are in a closed state during use. When the hydroxyapatite bioceramic material enters the mold groove, it will not sink into the fine holes. At the same time, it can be supported by the metal support plate to avoid bending of the cross rubber block and irregular subsequent molding. By setting a water pump, after the molding is completed, the water pump can be turned on to extract the coolant, so that the coolant is sprayed out through the connecting pipe and the fine holes are opened to spray toward the finished product. At the same time, the coolant can be used to cool the finished product while generating a driving force to separate the finished product to achieve the demoulding effect and prevent the shape of the finished product from being damaged.

[0022] A water tank is provided to store coolant, which can be extracted through a suction pipe and an auxiliary water pump to increase practicality. A sealing ring is provided to increase the closing degree between the top cover and the mold groove to prevent material leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2It is a schematic diagram of the metal support plate structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the cross rubber block structure when viewed from above of the utility model;

[0026] Figure 4 It is a schematic diagram of the bottom frame structure of the utility model.

[0027] Attached figures: 100, support table; 200, mold groove; 300, cylinder; 400, top cover; 500, demolding assembly; 501, feeder; 502, feed hole; 503, feed pipe; 504, cross hole; 505, cross rubber block; 506, metal support plate; 507, fine hole; 508, bottom groove; 509, bottom frame; 510, water pump; 511, connecting pipe; 600, water tank; 601, outer hole; 602, suction pipe; 700, sealing ring. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0029] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0030] refer to Figure 1-Figure 4A compression molding device for producing hydroxyapatite bioceramics includes: a support platform 100, a mold groove 200 is opened on the top surface of the support platform 100, a cylinder 300 is fixedly installed on one side of the support platform 100, a top cover 400 is arranged on the top surface of the support platform 100, the top cover 400 is fixedly connected to the output shaft of the cylinder 300, and a demolding assembly 500 is arranged on the top surface of the top cover 400 for demolding, and the cylinder 300 is arranged to adjust the height of the top cover 400 to close the mold groove 200 cooperates with the subsequent compression molding, and the demolding component 500 includes: a feeder 501, the feeder 501 is fixedly installed on the top surface of the top cover 400, the top surface of the top cover 400 is provided with a feed hole 502, the inside of the feed hole 502 is fixedly installed with a feed pipe 503, the feed pipe 503 and the discharge end of the feeder 501 are fixedly installed together, and the feeder 501 is provided to transport the hydroxyapatite bioceramic material so that it passes through the feed pipe 503 into the mold groove 200 for compression molding.

[0031] refer to Figure 1-Figure 4 The demolding assembly 500 further includes: a cross hole 504, the cross hole 504 is provided on the bottom surface of the mold groove 200, a cross rubber block 505 is arranged inside the cross hole 504, a metal support plate 506 is fixedly installed on the outer side of the cross rubber block 505, the metal support plate 506 is fixedly installed with the inner wall of the cross hole 504, a plurality of fine holes 507 are provided on the top surface of the cross rubber block 505, a bottom groove 508 is provided on the bottom surface of the cross hole 504, the bottom groove 508 is connected with the fine holes 507, by setting the fine holes 507, when in use, because the cross rubber block 505 is made of rubber material, the fine holes 507 are in a closed state, when the hydroxyapatite bioceramic material enters the mold groove 200, it will not fall into the fine holes 507, and at the same time, it can pass through the metal The support of the support plate 506 is to prevent the cross rubber block 505 from bending and causing irregular subsequent molding. The demolding component 500 also includes: a bottom frame 509, the bottom frame 509 is fixedly installed on the bottom surface of the support platform 100, a water pump 510 is fixedly installed inside the bottom frame 509, and a connecting pipe 511 is fixedly installed inside the bottom groove 508. The connecting pipe 511 is fixedly connected to the water outlet end of the water pump 510. By setting up the water pump 510, after the molding is completed, the coolant can be extracted by turning on the water pump 510, so that the coolant is sprayed out through the connecting pipe 511 and the fine hole 507 is opened to spray to the finished product. At the same time, the coolant can be used to cool the finished product while generating a driving force through the coolant to separate the finished product to achieve the demolding effect and prevent the shape of the finished product from being damaged.

[0032] refer to Figure 1-Figure 4A water tank 600 is fixedly installed inside the bottom frame 509, and an outer hole 601 is opened on one side of the water tank 600. A water pumping pipe 602 is fixedly installed inside the outer hole 601. The water pumping pipe 602 is fixedly installed together with the water inlet end of the water pump 510. The water tank 600 is provided to store coolant, and the water pump 510 can be assisted to extract coolant through the water pumping pipe 602, thereby increasing practicality. A sealing ring 700 is fixedly installed on the top surface of the support platform 100. The sealing ring 700 is provided to increase the closing degree between the top cover 400 and the mold groove 200 to prevent material leakage.

[0033] Working principle: Please refer to Figure 1-Figure 4 As shown, when in use, the cylinder 300 can be used to adjust the height of the top cover 400 to close the mold groove 200 for subsequent compression molding. The feeder 501 is provided to convey the hydroxyapatite bioceramic material so that it enters the mold groove 200 through the feed pipe 503 for compression molding. When in use, since the cross rubber block 505 is made of rubber, the fine hole 507 is in a closed state. When the hydroxyapatite bioceramic material enters the mold groove 200, it will not fall into the fine hole 507. At the same time, it can be supported by the metal support plate 506 to avoid the bending of the cross rubber block 505 and cause irregular subsequent compression molding. By providing a water pump 510, after the compression molding is completed, the water pump 510 can be turned on to extract the coolant, so that the coolant is sprayed out through the connecting pipe 511 and the fine hole 507 is opened to spray toward the finished product. At the same time, the coolant can be used to cool the finished product while generating a driving force to separate the finished product to achieve the demoulding effect and prevent the shape of the finished product from being damaged.

[0034] Although the embodiments of the present invention have been shown and described, it is understandable to those skilled in the art that, unless otherwise defined, the technical terms or scientific terms used in the present invention should have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "including" or "comprising" and the like used in the present invention mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words "connect" or "connected" and the like are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the described object changes, the relative position relationship may also change accordingly.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A compression molding device for producing hydroxyapatite bioceramics, characterized in that: include: A support platform (100), wherein a mold groove (200) is provided on the top surface of the support platform (100), a cylinder (300) is fixedly mounted on one side of the support platform (100), and a top cover (400) is provided on the top surface of the support platform (100), wherein the top cover (400) is fixedly connected to an output shaft of the cylinder (300); A film stripping assembly (500), wherein the film stripping assembly (500) is arranged on the top surface of the top cover (400) and is used for film stripping.

2. A compression molding device for producing hydroxyapatite bioceramics according to claim 1, characterized in that: The film stripping assembly (500) comprises: A feeder (501), the feeder (501) is fixedly mounted on the top surface of the top cover (400), the top surface of the top cover (400) is provided with a feed hole (502), a feed pipe (503) is fixedly mounted inside the feed hole (502), and the feed pipe (503) is fixedly mounted together with the discharge end of the feeder (501).

3. A compression molding device for producing hydroxyapatite bioceramics according to claim 1, characterized in that: The film stripping assembly (500) further comprises: A cross hole (504) is provided on the bottom surface of the mold groove (200), a cross rubber block (505) is arranged inside the cross hole (504), a metal support plate (506) is fixedly installed on the outer side of the cross rubber block (505), the metal support plate (506) is fixedly installed together with the inner wall of the cross hole (504), a plurality of fine holes (507) are provided on the top surface of the cross rubber block (505), a bottom groove (508) is provided on the bottom surface of the cross hole (504), and the bottom groove (508) is connected with the fine holes (507).

4. A compression molding device for producing hydroxyapatite bioceramics according to claim 3, characterized in that: The film stripping assembly (500) further comprises: A bottom frame (509), the bottom frame (509) is fixedly mounted on the bottom surface of the support platform (100), a water pump (510) is fixedly mounted inside the bottom frame (509), a connecting pipe (511) is fixedly mounted inside the bottom tank (508), and the connecting pipe (511) is fixedly connected to the water outlet end of the water pump (510).

5. A compression molding device for producing hydroxyapatite bioceramics according to claim 4, characterized in that: A water tank (600) is fixedly installed inside the bottom frame (509), an outer hole (601) is opened on one side of the water tank (600), a water pumping pipe (602) is fixedly installed inside the outer hole (601), and the water pumping pipe (602) is fixedly installed together with the water inlet end of the water pump (510).

6. A compression molding device for producing hydroxyapatite bioceramics according to claim 1, characterized in that: A sealing ring (700) is fixedly mounted on the top surface of the support platform (100).

Images