A mold and method for making a denture support

Abstract

The application discloses a preparation mold and method of a denture support seat, which comprises a forging mold and a trimming mold; the forging mold comprises a forging pressing block and a forging cushion block, a first forging mold core is detachably installed on the forging pressing block and faces the forging cushion block, and a second forging mold core is detachably installed on the forging cushion block and corresponds to the first forging mold core; a plurality of mold core cavities are arranged on the second forging mold core at intervals, and the shape of the mold core cavities is the same as that of the surface of the support seat; the integrated forging of the support seat is realized through the design of the forging mold, and the overall comprehensive performance of the support seat is not changed; meanwhile, a columnar recess is designed on the first forging mold core, so that the support seat obtained through forging has a columnar body on the inner wall, and when the denture is put in, the stability of the denture in the support seat can be maintained.

Description

Technical Field

[0001] This invention belongs to the field of denture support preparation technology, and particularly relates to a mold and method for preparing a denture support. Background Technology

[0002] Dental implants are a rapidly developing and relatively new technology in recent years. The process involves inserting an implant into the alveolar bone. After the implant integrates with the alveolar bone, a tooth is then placed on the implant. During the process, a denture placement device (i.e., a support) needs to be prepared first. The denture is then taken out of the packaging and placed on the support before the denture is finally placed.

[0003] The support has a receiving groove from top to bottom to accommodate the denture. Existing supports are typically made in several parts for ease of fabrication, and these parts are joined together in the final step. This makes the support prone to cracking after a period of use, thus reducing its lifespan. Summary of the Invention

[0004] The purpose of this invention is to provide a mold and method for preparing a denture support, which obtains an integral support through forging, thereby reducing the probability of cracking and extending the service life.

[0005] The present invention adopts the following technical solution: a mold for preparing a denture support, comprising a forging mold and a cutting mold;

[0006] The forging die includes a forging block and a forging pad. A first forging die core facing the forging pad is detachably mounted on the forging block, and a second forging die core is detachably mounted on the forging pad at a position corresponding to the first forging die core.

[0007] The second forging die core is provided with several die core cavities spaced apart, and the shape of the die core cavity is the same as the surface shape of the support base.

[0008] The surface of the first forging die core facing the second forging die core has several protrusions. The shape of each protrusion corresponds to the shape of the support base, and each protrusion has a columnar recess on its circumference towards the central axis of the protrusion. The length direction of the columnar recess is consistent with the axial direction of the protrusion.

[0009] Furthermore, the second forging die core also has a positioning cavity outside the die core cavity.

[0010] Furthermore, the number of positioning cavities is at least two.

[0011] Furthermore, there are positioning cavities between adjacent mold core cavities.

[0012] Furthermore, the first forging die core is installed on the first forging die sleeve, and the first forging heating rod is also installed on the first forging die sleeve;

[0013] The second forging die core is installed on the second forging die sleeve; the second forging heating rod is also installed on the second forging die sleeve.

[0014] Furthermore, the trimming die includes a first trimming die core located on the trimming pressure block and a second trimming die core located on the trimming pad block;

[0015] The second die core for trimming has the same shape and size as the second die core for forging;

[0016] The surface of the first cutting mold core facing the second cutting mold core has several annular cutters, each annular cutter having the same shape and size as the annular opening at the top of the mold core cavity.

[0017] Another technical solution of the present invention: a method for preparing a denture support, comprising the following steps:

[0018] Install the forging die in the forging equipment;

[0019] The first and second forging cores of the forging die are heated to a first predetermined temperature;

[0020] A pure titanium bar heated to a second predetermined temperature is placed in the positioning groove of the second forging die core and forged to obtain a support assembly; the support assembly includes several support seats connected together.

[0021] The trimming die is installed in the forging equipment, and the support assembly is placed into the second trimming core of the trimming die;

[0022] Start the forging equipment and cut the support assembly into several support seats through the first and second cutting die cores of the cutting die.

[0023] The beneficial effects of this invention are: by designing a forging die, this invention achieves integrated forging of the support base without changing the overall performance of the support base; at the same time, by designing a columnar recess on the first forging die core, the inner wall of the forged support part can have columnar bodies, which can maintain the stability of the denture when it is inserted. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the forging die in an embodiment of the present invention;

[0025] Figure 2 This is a top view of the forging of the second die core in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the edge-cutting mold in an embodiment of the present invention;

[0027] Figure 4 This is a top view of the support base in an embodiment of the present invention;

[0028] Figure 5 for Figure 4 The left view;

[0029] Figure 6 This is a cross-sectional schematic diagram of the support base in an embodiment of the present invention.

[0030] Among them: 100. Forging dies;

[0031] 110. Forged pressing block; 111. Forged first pad block; 112. Forged first insulating plate; 113. Forged first die sleeve; 114. Forged first die core; 115. Forged first heating rod; 116. Forged first insulating bolt;

[0032] 120. Forged pad block; 121. Forged second pad block; 122. Forged second insulating plate; 123. Forged second die sleeve; 124. Forged second die core; 125. Forged second heating rod; 126. Forged second insulating bolt;

[0033] 1241. Mold core cavity; 1242. Positioning cavity; 1243. Cavity bottom plate;

[0034] 200. Trimming die;

[0035] 210. Edge trimming block; 211. First edge trimming pad; 212. First edge trimming insulating plate; 213. First edge trimming die sleeve; 214. First edge trimming die core; 216. First edge trimming insulating bolt;

[0036] 220. Edge-cutting pad; 221. Second edge-cutting pad; 222. Second edge-cutting insulating board; 223. Second edge-cutting mold sleeve; 224. Second edge-cutting mold core; 226. Second edge-cutting insulating bolt;

[0037] 300. Billet;

[0038] 400. Heating device;

[0039] 500. Support base. Detailed Implementation

[0040] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0041] This invention discloses a mold for preparing a denture support, including a forging mold 100 and a cutting mold 200; the forging mold 100 includes a forging pressure block 110 and a forging pad block 120, a forging first mold core 114 facing the forging pad block 120 is detachably mounted on the forging pressure block 110, and a forging second mold core 124 is detachably mounted on the forging pad block 120 at a position corresponding to the forging first mold core 114; the forging second mold core 124 is provided with a plurality of mold core cavities 1241 at intervals, and the shape of the mold core cavities 1241 is the same as the surface shape of the support 500.

[0042] The surface of the forging first die core 114 facing the forging second die core 124 has several protrusions. The shape of each protrusion corresponds to the shape of the support base 500, and each protrusion has a columnar recess on its circumferential surface in the direction of the central axis of the protrusion. The length direction of the columnar recess is consistent with the axial direction of the protrusion.

[0043] This invention achieves integrated forging of the support base 500 by designing a forging die, without changing the overall performance of the support base 500; at the same time, a columnar recess is designed on the first forging die core 114, which can make the inner wall of the forged support have columnar bodies, so that the denture can be kept stable when it is inserted.

[0044] In one embodiment, such as Figure 1 As shown, the forging block 110 includes a first forging die 114 with five protrusions facing the forging pad 120. The forging pad 120 includes a second forging die 124 with positioning grooves at both ends for positioning the raw material, pure titanium bars. A die core cavity 1241 of the same shape is provided on the second forging die, opposite to the five protrusions, for forging the pure titanium bars.

[0045] The forging press 110 also includes a forging first pad 111 for connection with a press. The forging first pad 111 is connected to a forging first die sleeve 113 via a forging first insulating plate 112. The forging first pad 111, the forging first insulating plate 112, and the forging first die sleeve 113 are connected by forging first insulating bolts 116. A forging first die core 114 is mounted on the forging first die sleeve 113. A recess is provided on the forging first die sleeve 113, and the forging first die core 114 is mounted in the recess. The forging first die core 114 is threadedly connected to the forging first die sleeve 113.

[0046] The forging pad 120 also includes a forging second pad 121, which is connected to the forging second die sleeve 123 via a forging second insulating plate 122. A forging second die core 124 is mounted on the forging second die sleeve 123. The forging second die sleeve 123 has a recessed portion, and the forging second die core 124 is mounted in the recessed portion. The forging second die core 124 is threadedly connected to the forging second die sleeve 123. A positioning assembly is also provided between the forging pressure block 110 and the forging pad 120; the positioning assembly consists of at least two positioning rods, and both the forging pressure block 110 and the forging pad 120 have positioning grooves.

[0047] In one embodiment, the forging second die core 124 has a positioning cavity 1242 in addition to the die core cavity 1241, and the number of positioning cavities 1242 is at least two. More specifically, the positioning cavity 1242 is located between adjacent die core cavities 1241.

[0048] like Figure 2 As shown, the top surface of the second forging die core 124 has five die core cavities 1241 facing downwards. A positioning cavity 1242 is also provided next to the die core cavity 1241. After forging, the cavity bottom plate 1243 in the figure fits against the bottom of the support seat 500. The positioning cavity 1242 can help to provide a positioning post under the forged support seat assembly, so as to facilitate positioning during edge cutting.

[0049] In addition, the first forging die 114 is mounted on the first forging die sleeve 113, and the first forging die sleeve 113 is also equipped with a first forging heating rod 115. The second forging die 124 is mounted on the second forging die sleeve 123; the second forging die sleeve 123 is also equipped with a second forging heating rod 125. The first forging die 114 and the second forging die 124 can be heated by the first forging heating rod 115 and the second forging heating rod 125, so that they reach a predetermined temperature before forging.

[0050] In one embodiment, the trimming die 200 includes a first trimming die core 214 located on the trimming pressure block 210 and a second trimming die core 224 located on the trimming pad block 220; the second trimming die core 224 has the same shape and size as the forging second die core 124; the surface of the first trimming die core 214 facing the second trimming die core 224 has a plurality of annular cutters, each annular cutter having the same shape and size as the annular opening at the top of the die core cavity 1241.

[0051] Specifically, such as Figure 3 As shown, the edge-cutting pressure block 210 includes an edge-cutting first mold core 214, on which an edge-cutting blade (i.e., a ring-shaped cutter) corresponding to the forging first mold core 114 is provided, with the edge-cutting blade facing the edge-cutting pad block 220.

[0052] The trimming pad 220 includes a trimming second die core 224. The trimming second die core 224, like the forging second die core 124, has positioning grooves at both ends for positioning the support base assembly. The trimming second die core 224, like the forging second die core 124, has a die core cavity of the same shape for supporting the final forging of the support base assembly.

[0053] The trimming block 210 also includes a trimming first pad 211 for connection with the press. The trimming first pad 211 is connected to the trimming first mold sleeve 213 through the trimming first insulating plate 212. The trimming first mold core 214 is installed on the trimming first mold sleeve 213. The trimming first mold sleeve 213 is provided with a recess, and the trimming first mold core 214 is installed in the recess. The trimming first mold core 214 is threadedly connected to the trimming first mold sleeve 213.

[0054] The trimming pad 220 also includes a second trimming pad 221, which is connected to the second trimming mold sleeve 223 via a second trimming insulating plate 222. A second trimming mold core 224 is mounted on the second trimming mold sleeve 223. A recess is provided on the second trimming mold sleeve 223, and the second trimming mold core 224 is installed in the recess. The second trimming mold core 224 is threadedly connected to the second trimming mold sleeve 223. A positioning assembly is provided between the trimming pressure block 210 and the trimming pad 220. The positioning assembly consists of at least two positioning rods, and both the trimming pressure block 210 and the trimming pad 220 have positioning grooves. The first trimming pad 211, the first trimming insulating plate 212, and the first trimming mold sleeve 213 are connected via a first trimming insulating bolt 216. The second trimming pad 221, the second trimming insulating plate 222, and the second trimming mold sleeve 223 are connected via a second trimming insulating bolt 226.

[0055] The processed support base is 500. Figure 4 As shown, its top includes a circular outer extension, and a concave cavity extends downward in the middle for placing the denture. Several columnar bodies are circumferentially arranged on the wall surface of the cavity edge, which securely hold the denture within the cavity, preventing it from falling out. Figure 5 As shown, Figure 4 The left view shows that its bottom is smaller than its top, which saves material. For example... Figure 6 As shown, the cross-sectional section is the outer shell of the support base 500, the blank space in the middle is a cavity for placing the dentures, and the trapezoidal shape in the middle of the blank section, which is smaller at the top and larger at the bottom, is a columnar body used to hold the dentures in place and prevent them from falling out.

[0056] The present invention also discloses a method for preparing a denture support, comprising the following steps: installing a forging mold 100 in a forging equipment; heating the forging first core 114 and forging second core 124 of the forging mold 100 to a first predetermined temperature; placing a pure titanium rod heated to a second predetermined temperature in the positioning groove of the forging second core 124 and forging it to obtain a support assembly; the support assembly includes a plurality of support seats 500 connected together; installing a trimming mold in the forging equipment and placing the support assembly into the trimming second core 224 of the trimming mold 200; starting the forging equipment and cutting the support assembly into a plurality of support seats 500 through the trimming first core 214 and trimming second core 224 of the trimming mold 200.

[0057] Specifically, first, the forging pressure block 110 and the forging pad block 120 are installed, and the first forging die core 114 and the second forging die core 124 are fixed.

[0058] Next, the first forging heating rod 115 and the second forging heating rod 125 are activated to heat the first forging die 114 and the second forging die 124 to the predetermined die core temperature. Then, the heating furnace is activated to heat the billet 300 (in this embodiment, a pure titanium bar) to the predetermined billet temperature. Specifically, the predetermined billet temperature is set based on the phase transformation point and plasticity of the pure titanium bar. Moreover, since the billet is at a high temperature during forging, to prevent an excessive temperature difference between the die core and the billet from affecting the performance of the forging, the predetermined die core temperature is determined based on the predetermined billet temperature and the temperature difference.

[0059] The pure titanium bar to be processed is placed in the positioning groove of the second forging die 124. The forging pressure block 110 is pressed a predetermined distance toward the forging pad block 120, so that the billet 300 located at the second forging die 124 is deformed and located in the cavity of the second forging die 124, thus obtaining an integral pure titanium support assembly final forging.

[0060] Remove the forging block 110 and forging pad 120, install the trimming block 210 and trimming pad 220, and fix the first trimming die core 214 and the second trimming die core 224.

[0061] The forged pure titanium support assembly is placed in the positioning groove of the second cutting mold core 224; the cutting edge pressure block 210 is pressed towards the cutting edge pad block 220 a predetermined distance to remove the excess edge of the pure titanium support assembly located at the second cutting edge mold core 224, resulting in five pure titanium supports 500. Dental implant supports prepared in this manner do not alter the overall properties of pure titanium and can prevent support cracking.

Claims

1. A mold for preparing a denture support, characterized in that, Includes forging die (100) and trimming die (200); The forging die (100) includes a forging block (110) and a forging pad (120). A first forging die core (114) facing the forging pad (120) is detachably mounted on the forging block (110), and a second forging die core (124) is detachably mounted on the forging pad (120) at a position corresponding to the first forging die core (114). The forging second die core (124) is provided with a plurality of die core cavities (1241) spaced apart, and the shape of the die core cavity (1241) is the same as the surface shape of the support base (500); The forging first die core (114) has a plurality of protrusions on its surface facing the forging second die core (124). The shape of each protrusion corresponds to the shape of the support base (500), and each protrusion has a columnar recess on its circumferential surface in the direction of the central axis of the protrusion. The length direction of the columnar recess is consistent with the axial direction of the protrusion. The trimming mold (200) includes a first trimming mold core (214) located on the trimming pressure block (210) and a second trimming mold core (224) located on the trimming pad block (220). The second die core for cutting the edge (224) has the same shape and size as the second die core for forging (124); The first cutting mold core (214) has a plurality of annular cutters on its surface facing the second cutting mold core (224), and each annular cutter has the same shape and size as the annular opening at the top of the mold core cavity (1241); When using the trimming die (200), remove the forging block (110) and the forging pad (120), install the trimming block (210) and the trimming pad (220), and fix the first trimming die core (214) and the second trimming die core (224).

2. The mold for preparing a denture support as described in claim 1, characterized in that, The forging second die core (124) also has a positioning cavity (1242) outside the die core cavity (1241).

3. The mold for preparing a denture support as described in claim 2, characterized in that, The number of the positioning cavities (1242) is at least two.

4. The mold for preparing a denture support as described in claim 2 or 3, characterized in that, A positioning cavity (1242) is provided between adjacent mold core cavities (1241).

5. The mold for preparing a denture support as described in claim 4, characterized in that, The forging first die core (114) is installed on the forging first die sleeve (113), and the forging first die sleeve (113) is also equipped with a forging first heating rod (115). The forging second die core (124) is installed on the forging second die sleeve (123); the forging second die sleeve (123) is also equipped with a forging second heating rod (125).

6. A method for preparing a denture support, characterized in that, The preparation mold for a denture support according to any one of claims 1-5 includes the following steps: Install the forging die (100) in the forging equipment; The forging first die core (114) and forging second die core (124) of the forging die (100) are heated to a first predetermined temperature; A pure titanium bar heated to a second predetermined temperature is placed in the positioning groove of the forging second die core (124) and forged to obtain a support assembly; the support assembly includes a plurality of support seats (500) connected together. The trimming die is installed in the forging equipment, and the support assembly is placed in the trimming second die core (224) of the trimming die (200); Start the forging equipment and cut the support assembly into several support seats (500) through the first cutting die core (214) and the second cutting die core (224) of the cutting die (200).

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