Glass block forming mold for preparing lithium disilicate glass ceramic crystal

Abstract

The utility model relates to the field of crystal preparation, in particular to a glass block forming die for lithium disilicate glass ceramic crystal preparation, which comprises two die bodies which are symmetrically arranged, two limiting mechanisms, a clamping mechanism and a supporting mechanism, the two limiting mechanisms are distributed up and down and arranged on the outer sides of the two mold bodies in a sleeving mode. A worker can knock the extension plate downwards with a tool, so that the rotating plate drives the clamping groove to be arranged on the steel wire sleeve in a sleeving mode in an extrusion mode, the position of the rotating plate is limited and fixed, and the two sets of first connecting rings and second connecting rings are matched to extrude the outer sides of the two mold bodies together; and in addition, after die casting is completed, an extension plate can be knocked upwards, so that a rotating plate drives a clamping groove to be separated from a steel wire sleeve, and the two die bodies can be disassembled conveniently and rapidly.

Description

Technical Field

[0001] The utility model relates to the field of crystal preparation, in particular to a glass block forming mold for preparing lithium disilicate glass ceramic crystals. Background Art

[0002] Lithium disilicate glass-ceramic is a polycrystalline material composed of lithium disilicate crystals and a glass matrix. Due to its unique crystal properties and distribution, it not only has good aesthetic properties and biocompatibility, but also has been widely used in the field of oral clinical practice, such as for veneers, inlays, onlays, single crowns, and three-unit fixed bridge restorations.

[0003] However, the existing lithium disilicate glass ceramic crystal preparation molding mold is easily affected by external forces during hot die casting, resulting in gaps in the mold and overflow of semi-molten glass ceramics. In addition, when two molding molds are usually merged, workers are required to wrap a large amount of steel wire around the outside of the two molding molds to ensure the stability of the two molding molds after the merger. Due to the lack of a mechanism that can easily fix and disassemble the molding molds, a lot of time is wasted each time the two molding molds are fixed or removed. Utility Model Content

[0004] The utility model aims to provide a forming mold for preparing lithium disilicate glass ceramic crystals, which is mainly used to solve the problem that the existing technology lacks a design that can prevent cracks from expanding in the ceramic to the greatest extent. In addition, due to the lack of a mechanism that can easily fix and disassemble the forming mold, a lot of time is wasted each time the two forming molds are fixed or removed.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A glass block forming mold for preparing lithium disilicate glass ceramic crystals includes two symmetrically arranged mold bodies, a die-casting channel is arranged on the inside of the mold bodies, and also includes a limiting mechanism, a clamping mechanism and a supporting mechanism. There are two limiting mechanisms, and the two limiting mechanisms are distributed up and down and sleeved on the outside of the two mold bodies, and each limiting mechanism is arranged into two parts. The two-part limiting mechanism is hinged, the clamping mechanism is rotatably arranged on the outer wall of one part of the limiting mechanism, and the supporting mechanism is arranged on the outer wall of the other part of the limiting mechanism, and a support member is arranged on the outer wall of the supporting mechanism, and the clamping mechanism and the support member are tightly connected. A connecting member is arranged between the two limiting mechanisms, and a positioning member is arranged at the bottom end of the limiting mechanism located below. The limiting mechanism also includes a first connecting ring, a connecting block, a second connecting ring and a rotating block. The first connecting ring is sleeved on the outside of the two mold bodies, one end of the first connecting ring is fixedly connected to the two connecting blocks, a rotating block is hinged between the two connecting blocks, one end of the rotating block is fixedly connected to the second connecting ring, and the second connecting ring is sleeved on the outside of the two mold bodies.

[0007] The working principle and beneficial effects of this utility model:

[0008] 1. Working principle: The first connecting ring drives the connecting block to rotate outside the rotating block at one end of the second connecting ring, thereby adjusting the angles of the first connecting ring and the second connecting ring, making it convenient for the first connecting ring and the second connecting ring to be sleeved on the outside of the two mold bodies, and convenient for the first connecting ring and the second connecting ring to be sleeved on the outside of the two mold bodies. Subsequently, the clamping mechanism is rotated to the outside of the support member by rotating the clamping mechanism. Due to the action of the supporting mechanism, the support member can be supported. At this time, the staff can use a tool to knock the clamping mechanism downward so that the clamping mechanism is clamped on the support member in an extruded manner, thereby limiting the position of the rotating plate. At the same time, the first connecting ring and the second connecting ring squeeze and fix the two mutually combined mold bodies to ensure the stability of the two mold bodies during die-casting. In addition, after the die-casting is completed, the clamping mechanism can be separated from the support member by knocking upward, so that the two mold bodies can be conveniently disassembled.

[0009] 2.Beneficial effects:

[0010] (1) The rotating block rotates between the two connecting blocks, so that the first connecting ring and the second connecting ring can be sleeved on the outside of the two mold bodies, and through the rotatable rotating plate, when the rotating plate drives the clamping groove to rotate above the connecting rod, the staff can use a tool to knock the extension plate downward, so that the rotating plate drives the clamping groove to be sleeved on the wire sleeve by extrusion, and the position of the rotating plate is restricted and fixed, thereby cooperating with the two groups of first connecting rings and second connecting rings to extrude the outside of the two mold bodies together, thereby ensuring the stability of the two mold bodies when they are merged, and the bottom surface of the support rod is flush with the bottom surface of the mold body, which facilitates the positioning of the first connecting ring and the second connecting ring. In addition, after the die-casting is completed, the extension plate can be knocked upward to separate the clamping groove and the wire sleeve driven by the rotating plate, so that the two mold bodies can be easily disassembled.

[0011] (2) The diameter of the upper part of the die-casting channel is 12 mm, which is convenient for placing ceramics and alumina push rods. The lower part is connected to a rounded funnel with a radius of 45° to reduce the damage to the graphite mold before the extrusion starts. Below it is a right-angle die-casting channel with a diameter of 6 mm. The angle between the two channels is 90°, the outer arc radius is 30°, the upper channel height is 6 mm, and the lower channel length is 21 mm. The wear behavior of dental glass ceramics during the running-in period is not conducive to its long-term and stable function in the mouth. The equal channel angular extrusion technology is used to control the crystal orientation of lithium disilicate glass ceramics. The lithium disilicate crystal orientation perpendicular to the chewing force direction and parallel to the ceramic surface is constructed on the glass ceramic surface, which can prevent the crack from expanding in the ceramic to the greatest extent.

[0012] Preferably, the clamping mechanism includes a first fixed block, a limiting rod, a limiting plate, a rotating plate, a clamping slot and an extension plate, the inner side of the first fixed block is fixedly connected to the outer wall of the second connecting ring, the outer side of the first fixed block is fixedly connected to the limiting rod, one end of the limiting rod is fixedly connected to the limiting plate, the outer wall of the limiting rod is rotatably connected to the rotating plate near the inner side of the limiting plate, the bottom end of the rotating plate is provided with a clamping slot, and the top of one end of the rotating plate is fixedly connected to the extension plate; the staff can use a tool to knock the extension plate downward so that the rotating plate drives the clamping slot to be squeezed onto the support member, thereby limiting and fixing the position of the rotating plate.

[0013] Preferably, the supporting mechanism includes a second fixed block, a clamping rod and a limit plate, the inner side of the second fixed block is fixedly connected to the outer wall of the first connecting ring, the front side of the second fixed block is fixedly connected to the clamping rod, and one end of the clamping rod is fixedly connected to the limit plate; due to the action of the clamping rod, the position of the wire sleeve can be supported.

[0014] Preferably, the support member includes a wire sleeve, and the wire sleeve is fixedly sleeved on the outer wall of the support mechanism; one end of the wire sleeve is fixedly connected to the front side of the second fixed block, and the other end is fixedly connected to the rear side of the limiting plate.

[0015] Preferably, the connecting member includes a connecting rod, and a plurality of the connecting rods are provided, and the plurality of connecting rods are fixedly connected between the two limiting mechanisms; the plurality of connecting rods are divided into two groups, and the two groups of connecting rods are respectively fixedly connected between the two groups of first connecting rings and second connecting rings. Due to the action of the connecting rods, it is convenient to connect the two groups of first connecting rings and second connecting rings, so that when the first connecting rings and second connecting rings in one group are pulled, the other group will also be pulled.

[0016] Preferably, the positioning member includes support rods, and there are several support rods, the top ends of several support rods are fixedly connected to the bottom end of the limiting mechanism located below, and the bottom ends of several support rods are flush with the bottom end of the mold body; the several support rods are divided into two groups, and the top ends of the two groups of support rods are respectively fixedly connected to the bottom ends of the first connecting ring and the second connecting ring located below, and the first connecting ring and the second connecting ring located below drive the bottom surface of the support rod to move to be flush with the bottom surface of the mold body, thereby positioning the first connecting ring and the second connecting ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural diagram of a glass block forming mold for preparing lithium disilicate glass ceramic crystals according to the utility model patent;

[0018] Figure 2 This is a diagram showing the rotating block structure of a glass block forming mold for preparing lithium disilicate glass ceramic crystals according to the utility model patent;

[0019] Figure 3This is a front view of a mold body of a glass block forming mold for preparing lithium disilicate glass ceramic crystals according to the utility model patent;

[0020] Figure 4 This is an exploded view of the rotating plate, steel wire sleeve, first connecting ring and second connecting ring of the glass block forming mold used for preparing lithium disilicate glass ceramic crystals of the utility model patent.

[0021] The figure marks in the drawings of the specification include: 1. mold body; 2. die-casting channel; 3. first connecting ring; 4. connecting block; 5. second connecting ring; 6. rotating block; 7. first fixed block; 8. limiting rod; 9. limiting plate; 10. second fixed block; 11. clamping rod; 12. limit plate; 13. wire sleeve; 14. rotating plate; 15. clamping groove; 16. extension plate; 17. connecting rod; 18. support rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figure 1-Figure 4As shown, a glass block forming mold for preparing lithium disilicate glass ceramic crystals comprises two symmetrically arranged mold bodies 1, a die-casting channel 2 is arranged on the inner side of the mold body 1, the upper diameter of the die-casting channel 2 is 12 mm, which is convenient for placing ceramics and alumina push rods, and a rounded funnel with a 45° radius is connected below to reduce damage to the graphite mold before extrusion begins, and a right-angle die-casting channel with a diameter of 6 mm is further below, the angle between the two channels is 90°, the outer arc radius is 30°, the upper channel height is 6 mm, and the lower channel length is 21 mm. The wear behavior of dental glass ceramics during the running-in period is not conducive to its long-term and stable function in the mouth. The equal channel angular extrusion technology is used to regulate the orientation of lithium disilicate glass ceramic crystals, and a structure is constructed on the surface of the glass ceramics. The lithium disilicate crystal orientation perpendicular to the chewing force direction and parallel to the ceramic surface can prevent cracks from expanding in the ceramic to the greatest extent. It also includes a limiting mechanism, a clamping mechanism and a supporting mechanism. There are two limiting mechanisms. The two limiting mechanisms are distributed up and down and are sleeved on the outside of the two mold bodies 1, and each limiting mechanism is set into two parts. The two-part limiting mechanism is hinged. The clamping mechanism is rotatably set on the outer wall of one part of the limiting mechanism, and the supporting mechanism is set on the outer wall of the other part of the limiting mechanism. The outer wall of the supporting mechanism is provided with a support member, and the clamping mechanism and the support member are tightly connected. The limiting mechanism includes a first connecting ring 3, a connecting block 4, a second connecting ring 5 and a rotating block 6. The first connecting ring 3 is sleeved on the outside of the two mold bodies 1. The first connecting ring 3 is fixedly connected to two connecting blocks 4 at one end, and a rotating block 6 is hinged between the two connecting blocks 4. One end of the rotating block 6 is fixedly connected to the second connecting ring 5, and the second connecting ring 5 is sleeved on the outside of the two mold bodies 1. The clamping mechanism includes a first fixed block 7, a limiting rod 8, a limiting plate 9, a rotating plate 14, a clamping groove 15 and an extension plate 16. The inner side of the first fixed block 7 is fixedly connected to the outer wall of the second connecting ring 5, the outer side of the first fixed block 7 is fixedly connected to the limiting rod 8, one end of the limiting rod 8 is fixedly connected to the limiting plate 9, and the outer wall of the limiting rod 8 is rotatably connected to the rotating plate 14 near the inner side of the limiting plate 9. The bottom end of the rotating plate 14 is provided with a clamping groove 15, and the top of one end of the rotating plate 14 is fixedly connected to the extension plate 16. The supporting mechanism includes a second fixed block 10, a clamping rod 11 The first connecting ring 3 and the second connecting ring 5 are connected to each other by the second connecting ring 3. ...The rotating plate 14 drives the clamping groove 15 to be sleeved on the wire sleeve 13 by extrusion. Due to the action of the clamping rod 11, the position of the wire sleeve 13 can be supported, thereby limiting and fixing the position of the rotating plate 14, thereby cooperating with the two sets of first connecting rings 3 and second connecting rings 5 ​​to squeeze the outer sides of the two mold bodies 1, thereby ensuring the stability of the two mold bodies 1 when they are combined. In addition, after the die-casting is completed, the extension plate 16 can be knocked upward to make the rotating plate 14 drive the clamping groove 15 to separate from the wire sleeve 13, thereby releasing the first connecting ring 3 and the second connecting ring 5 from squeezing the two mold bodies 1, so that the staff can conveniently disassemble the two mold bodies 1;

[0024] A connecting member is provided between the two limiting mechanisms, and the connecting member includes a connecting rod 17. A plurality of connecting rods 17 are provided, and the plurality of connecting rods 17 are fixedly connected between the two limiting mechanisms. Due to the function of the connecting rod 17, the two groups of first connecting rings 3 and second connecting rings 5 ​​are conveniently connected, so that when the first connecting rings 3 and second connecting rings 5 ​​in one group are pulled, the other group will also be pulled;

[0025] A positioning member is provided at the bottom end of the limiting mechanism located below, and the positioning member includes a support rod 18. There are several support rods 18, and the top ends of several support rods 18 are fixedly connected to the bottom end of the limiting mechanism located below, and the bottom ends of several support rods 18 are flush with the bottom end of the mold body 1. The first connecting ring 3 and the second connecting ring 5 located below drive the bottom surface of the support rod 18 to move to be flush with the bottom surface of the mold body 1, thereby positioning the first connecting ring 3 and the second connecting ring 5.

[0026] From the above, it can be seen that the specific implementation of the present invention is as follows: the diameter of the upper part of the die-casting channel 2 is 12mm, which is convenient for placing ceramics and alumina push rods. The lower part is connected to a rounded funnel with a radius of 45° to reduce the damage to the graphite mold before the extrusion starts. The lower part is a right-angle die-casting channel with a diameter of 6mm. The angle between the two channels is 90°, the outer arc radius is 30°, the upper channel height is 6mm, and the lower channel length is 21mm. The wear behavior of dental glass ceramics during the running-in period is not conducive to its long-term and stable function in the mouth. The equal channel angular extrusion technology is used to carry out lithium disilicate. The glass ceramic crystal orientation is regulated, and a lithium disilicate crystal orientation perpendicular to the chewing force direction and parallel to the ceramic surface is constructed on the glass ceramic surface, which can prevent cracks from expanding in the ceramic to the greatest extent. Due to the action of the connecting rod 17, it is convenient to connect the two groups of first connecting rings 3 and second connecting rings 5, so that when the first connecting rings 3 and second connecting rings 5 ​​in one group are pulled, the other group will also be pulled. At this time, the first connecting ring 3 drives the connecting block 4 to rotate outside the rotating block 6 at one end of the second connecting ring 5, thereby adjusting the angle of the first connecting ring 3 and the second connecting ring 5, which is convenient for the first connecting ring 3 The first and second connecting rings 5 ​​are sleeved on the outside of the two mold bodies 1. At this time, the first and second connecting rings 3 and 5 located below drive the bottom surface of the support rod 18 to move flush with the bottom surface of the mold body 1, thereby positioning the first and second connecting rings 3 and 5, pulling the rotating plate 14 so that the rotating plate 14 rotates on the outer wall of the limiting rod 8, so that the rotating plate 14 drives the clamping groove 15 to rotate to the outside of the wire sleeve 13, and then the staff can use a tool to knock the extension plate 16 downward so that the rotating plate 14 drives the clamping groove 15 to be sleeved on the wire sleeve 13 by extrusion. The function of 11 is to support the position of the wire sleeve 13, thereby limiting and fixing the position of the rotating plate 14, so as to cooperate with the two groups of first connecting rings 3 and second connecting rings 5 ​​to squeeze the outer sides of the two mold bodies 1, thereby ensuring the stability of the two mold bodies 1 when they are merged. In addition, after the die-casting is completed, the extension plate 16 can be knocked upward to make the rotating plate 14 drive the clamping groove 15 to separate from the wire sleeve 13, so that the first connecting ring 3 and the second connecting ring 5 release the squeezing of the two mold bodies 1, so that the staff can easily disassemble the two mold bodies 1.

[0027] The above is only an embodiment of the present invention, and the commonly known specific structures and characteristics of the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, and these should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A glass block forming mold for preparing lithium disilicate glass ceramic crystals, characterized in that: The invention comprises two symmetrically arranged mold bodies (1), the inner side of the mold body (1) is provided with a die-casting channel (2), and further comprises a limiting mechanism, a clamping mechanism and a supporting mechanism, wherein two limiting mechanisms are provided, the two limiting mechanisms are arranged on the outer sides of the two mold bodies (1) in an upper and lower distribution, and each limiting mechanism is provided with two parts, the two limiting mechanisms are hingedly arranged, the clamping mechanism is rotatably arranged on the outer wall of one part of the limiting mechanism, the supporting mechanism is arranged on the outer wall of the other part of the limiting mechanism, and the outer wall of the supporting mechanism is provided with a supporting member, and the clamping mechanism and the supporting member are tightly connected The invention discloses a method for manufacturing a mold body, wherein a connecting member is provided between the two limiting mechanisms, a positioning member is provided at the bottom end of the limiting mechanism located below, and the limiting mechanism further comprises a first connecting ring (3), a connecting block (4), a second connecting ring (5) and a rotating block (6), wherein the first connecting ring (3) is sleeved on the outside of the two mold bodies (1), one end of the first connecting ring (3) is fixedly connected to the two connecting blocks (4), a rotating block (6) is hinged between the two connecting blocks (4), one end of the rotating block (6) is fixedly connected to the second connecting ring (5), and the second connecting ring (5) is sleeved on the outside of the two mold bodies (1).

2. The glass block forming mold for preparing lithium disilicate glass ceramic crystals according to claim 1, characterized in that: The clamping mechanism comprises a first fixed block (7), a limiting rod (8), a limiting plate (9), a rotating plate (14), a clamping groove (15) and an extension plate (16), wherein the inner side of the first fixed block (7) is fixedly connected to the outer wall of the second connecting ring (5), the outer side of the first fixed block (7) is fixedly connected to the limiting rod (8), one end of the limiting rod (8) is fixedly connected to the limiting plate (9), the outer wall of the limiting rod (8) is rotatably connected to the rotating plate (14) near the inner side of the limiting plate (9), the bottom end of the rotating plate (14) is provided with a clamping groove (15), and the top end of the rotating plate (14) is fixedly connected to the extension plate (16).

3. The glass block forming mold for preparing lithium disilicate glass ceramic crystals according to claim 1, characterized in that: The support mechanism comprises a second fixed block (10), a clamping rod (11) and a limiting plate (12); the inner side of the second fixed block (10) is fixedly connected to the outer wall of the first connecting ring (3); the front side of the second fixed block (10) is fixedly connected to the clamping rod (11); one end of the clamping rod (11) is fixedly connected to the limiting plate (12).

4. The glass block forming mold for preparing lithium disilicate glass ceramic crystals according to claim 1, characterized in that: The support member comprises a steel wire sleeve (13), and the steel wire sleeve (13) is fixedly sleeved on the outer wall of the support mechanism.

5. The glass block forming mold for preparing lithium disilicate glass ceramic crystals according to claim 1, characterized in that: The connecting member comprises a connecting rod (17), a plurality of connecting rods (17) are provided, and the plurality of connecting rods (17) are fixedly connected between the two limiting mechanisms.

6. The glass block forming mold for preparing lithium disilicate glass ceramic crystals according to claim 1, characterized in that: The positioning member comprises a support rod (18), and a plurality of the support rods (18) are provided. The top ends of the plurality of support rods (18) are fixedly connected to the bottom end of the limiting mechanism located below, and the bottom ends of the plurality of support rods (18) are flush with the bottom end of the mold body (1).

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