Mould for false tooth processing

Abstract

The utility model discloses a mould for processing false teeth, which comprises a base and a lower mould arranged at the top of the base, an upper mould is arranged at the top of the lower mould, a mould core is embedded in the lower mould and can move up and down, two sides of the top of the base are fixedly connected with supports, and the supports are fixedly connected with the upper mould and the lower mould. The two sides of the lower die are fixedly connected with shaft pipes, the outer ends of the shaft pipes penetrate through the support and extend to the outer side of the support, the support is movably connected with the shaft pipes, and a transmission structure is arranged at the bottom of the base and can drive the lower die to turn over and swing. According to the utility model, the transmission structure drives the lower die to turn over around the shaft tube, a false tooth is naturally separated from the inner wall of the die by utilizing gravity, the difficulty of manual buckling is reduced, the liftable design of the die core is matched with the turning action, the false tooth is further ejected out, the problem of difficult material taking caused by too tight attachment is solved, and the rotary connection of the shaft tube and the bracket realizes the turning function; no complex power mechanism is needed, and cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of dental prosthesis processing technology, specifically a mold for dental prosthesis processing. Background Technology

[0002] Dentures, in medical terms, are a general term for restorations made after partial or complete loss of the upper and lower jaw teeth. They are similar to devices that provide functional support for the missing parts of the human body. They are also known as removable partial dentures and consist of components such as clasps, base, and artificial teeth. Patients can remove and wear them themselves.

[0003] For example, patent application number 202121433360.2 published on the China Patent Network, entitled "Injection Mold for Removable Dentures," includes a mold body. The mold body has an injection cavity for accommodating a denture wax model, and plaster holes, glue injection holes, vent holes, and wax removal holes respectively communicating with the injection cavity. The plaster holes, glue injection holes, and vent holes are located on a first side of the mold body, and the wax removal hole is located away from the first side of the mold body. The mold body includes a first mold and a second mold connected by a connecting component, and the injection cavity is located between the first mold and the second mold. This design results in a simple injection mold structure, facilitating production and simplifying the processing of dentures or denture models, saving time and effort, and reducing denture processing costs.

[0004] However, the current injection mold material handling method is relatively simple, mainly relying on manual cutting for material unloading. The dentures placed horizontally inside the mold will completely fit into the mold due to the downward gravity and friction, affecting the user's material unloading effect.

[0005] Therefore, it is necessary to redesign and modify the molds used for dental prosthesis processing. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a mold for denture processing, which has the advantage of facilitating material cutting. It solves the problem that the material cutting method of existing injection molds is relatively simple, mainly relying on manual cutting, and that dentures placed horizontally inside the mold will completely fit into the mold due to gravity and friction, affecting the user's material cutting effect.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a mold for denture processing, including a base;

[0008] The lower mold is set on top of the base;

[0009] The lower mold is provided with an upper mold at its top. The lower mold has a mold core embedded inside. The mold core can be raised and lowered. The base has brackets fixedly connected to both sides of its top. The lower mold has shaft tubes fixedly connected to both sides. The outer end of the shaft tube passes through the bracket and extends to the outside of the bracket. The bracket and the shaft tube are movably connected. The base has a transmission structure at its bottom. The transmission structure can drive the lower mold to rotate and swing.

[0010] In a preferred embodiment of this utility model, the transmission structure includes a connecting frame fixedly connected to the bottom of the base. A screw is movably connected to the inside of the connecting frame via a bearing. A threaded sleeve is threaded onto the surface of the screw. Extension rods are fixedly connected to both sides of the top of the threaded sleeve. A sleeve plate is fixedly connected to the outer end of the shaft tube. The side of the extension rod away from the threaded sleeve extends to the outside of the sleeve plate. A sliding rod located inside the sleeve plate is fixedly connected to the side of the extension rod away from the threaded sleeve. The sliding rod is slidably connected to the sleeve plate. A rotating wheel for driving the screw to rotate is provided on the front of the connecting frame.

[0011] As a preferred embodiment of this utility model, guide rods are fixedly connected to both sides inside the connecting frame, and the screw sleeve is sleeved on the surface of the guide rod and slidably connected to the guide rod.

[0012] As a preferred embodiment of this utility model, a force-bearing rod is fixedly connected to the bottom of the mold core, and a trapezoidal block located at the bottom of the force-bearing rod is provided on the top of the base. When the force-bearing rod swings with the lower mold, it can contact the inclined surface of the trapezoidal block and be squeezed, thus driving the mold core to rise.

[0013] In a preferred embodiment of this invention, the inner side of the force-bearing rod is movably connected to a roller via a pin, and the outer surface of the roller is in contact with the surface of the trapezoidal block.

[0014] As a preferred embodiment of this utility model, the top of the base is provided with an opening, and a linkage plate is fixedly connected to the back of the screw sleeve. The side of the linkage plate away from the screw sleeve passes through the opening and is fixedly connected to the bottom of the trapezoidal block.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model uses a transmission structure to drive the lower mold to rotate around the shaft tube, and uses gravity to naturally separate the denture from the inner wall of the mold, reducing the difficulty of manual removal. The mold core can be raised and lowered in conjunction with the rotation action to further eject the denture, solving the problem of material removal difficulties caused by excessive tightness. The rotational connection between the shaft tube and the bracket realizes the rotation function without the need for a complex power mechanism, thus reducing costs.

[0017] 2. This utility model uses a rotary wheel to manually drive the screw, which is simple to operate and allows for precise adjustment of the flipping angle, avoiding damage to the denture due to excessive flipping. The threaded engagement between the screw and the threaded sleeve converts the rotational motion into linear motion, and the sliding connection between the extension rod and the slide rod ensures that the force is evenly transmitted to the shaft tube, improving the flipping stability.

[0018] 3. This utility model restricts the screw sleeve to move only in the horizontal direction by using a guide rod, preventing the screw sleeve from rotating with the screw and ensuring the accuracy of the linear movement of the screw sleeve. The guide rod constrains the movement trajectory of the screw sleeve, avoiding thread wear caused by uneven load between the screw sleeve and the screw, and extending the service life.

[0019] 4. This utility model achieves double demolding by having the force rod contact the inclined surface of the trapezoidal block when the lower mold flips, thus converting the horizontal movement into the vertical lifting of the mold core. No additional power source is required. The lifting action is triggered by the mechanical linkage during mold flipping, simplifying the operation process.

[0020] 5. This utility model converts sliding friction into rolling friction through rollers, which significantly reduces the friction between the force-bearing rod and the trapezoidal block, improves transmission efficiency, reduces wear on the contact surface, and extends the service life of the force-bearing rod and the trapezoidal block.

[0021] 6. This utility model uses a linkage plate to synchronously drive the trapezoidal block to move horizontally when the screw sleeve moves, ensuring that the position of the trapezoidal block matches the flipping angle of the lower mold, avoiding the mold core lifting action being delayed or advanced, thus improving system coordination and reducing the risk of failure. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the left-side structure of this utility model;

[0025] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0026] In the diagram: 1. Base; 2. Lower mold; 3. Upper mold; 4. Mold core; 5. Bracket; 6. Shaft tube; 7. Transmission structure; 8. Connecting frame; 9. Screw; 10. Screw sleeve; 11. Extension rod; 12. Sleeve plate; 13. Slide rod; 14. Rotary wheel; 15. Guide rod; 16. Force-bearing rod; 17. Trapezoidal block; 18. Roller; 19. Opening; 20. Linkage plate. Detailed Implementation

[0027] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1 to 4 As shown, the present invention provides a mold for processing dentures, including a base 1;

[0029] The lower mold 2 is set on top of the base 1;

[0030] The lower mold 2 is provided with an upper mold 3 on its top. The mold core 4 is embedded inside the lower mold 2. The mold core 4 can be raised and lowered and moved. The top of the base 1 is fixedly connected to both sides of the support 5. The lower mold 2 is fixedly connected to both sides of the shaft tube 6. The outer end of the shaft tube 6 passes through the support 5 and extends to the outside of the support 5. The support 5 and the shaft tube 6 are movably connected. The bottom of the base 1 is provided with a transmission structure 7. The transmission structure 7 can drive the lower mold 2 to rotate and swing.

[0031] refer to Figure 3 The transmission structure 7 includes a connecting frame 8 fixedly connected to the bottom of the base 1. A screw 9 is movably connected to the inside of the connecting frame 8 via a bearing. A screw sleeve 10 is threadedly connected to the surface of the screw 9. Extension rods 11 are fixedly connected to both sides of the top of the screw sleeve 10. A sleeve plate 12 is fixedly connected to the outer end of the shaft tube 6. The side of the extension rod 11 away from the screw sleeve 10 extends to the outside of the sleeve plate 12. A sliding rod 13 located inside the sleeve plate 12 is fixedly connected to the side of the extension rod 11 away from the screw sleeve 10. The sliding rod 13 is slidably connected to the sleeve plate 12. A rotating wheel 14 for driving the screw 9 to rotate is provided on the front of the connecting frame 8.

[0032] As a technical optimization of this utility model, the screw 9 is manually driven by the rotating wheel 14, which is simple to operate and can precisely adjust the flipping angle, avoiding damage to the denture due to excessive flipping. The threaded engagement between the screw 9 and the threaded sleeve 10 converts the rotational motion into linear motion. The sliding connection between the extension rod 11 and the slide rod 13 ensures that the force is evenly transmitted to the shaft tube 6, improving the flipping stability.

[0033] refer to Figure 3 Guide rods 15 are fixedly connected to both sides inside the connecting frame 8, and screw sleeves 10 are sleeved on the surface of the guide rods 15 and slidably connected to the guide rods 15.

[0034] As a technical optimization of this utility model, the guide rod 15 restricts the screw sleeve 10 to move only in the horizontal direction, preventing the screw sleeve 10 from rotating with the screw rod 9, ensuring the accuracy of the linear motion of the screw sleeve 10, and the guide rod 15 constrains the movement trajectory of the screw sleeve 10, avoiding thread wear caused by the screw sleeve 10 and the screw rod 9 due to off-center load, thus extending the service life.

[0035] refer to Figure 4 A force-bearing rod 16 is fixedly connected to the bottom of the mold core 4. A trapezoidal block 17 located at the bottom of the force-bearing rod 16 is provided on the top of the base 1. When the force-bearing rod 16 swings with the lower mold 2, it can contact the inclined surface of the trapezoidal block 17 and be squeezed, thus driving the mold core 4 to rise.

[0036] As a technical optimization of this utility model, when the lower mold 2 flips, the force rod 16 contacts the inclined surface of the trapezoidal block 17, converting the horizontal movement into the vertical lifting of the mold core 4, achieving double demolding without the need for an additional power source. The lifting action is triggered by the mechanical linkage when the mold flips, simplifying the operation process.

[0037] refer to Figure 4 The inner side of the force-bearing rod 16 is movably connected to a roller 18 via a pin, and the outer surface of the roller 18 is in contact with the surface of the trapezoidal block 17.

[0038] As a technical optimization of this utility model, the sliding friction is converted into rolling friction by the roller 18, which significantly reduces the friction between the force-bearing rod 16 and the trapezoidal block 17, improves the transmission efficiency, reduces wear on the contact surface, and extends the service life of the force-bearing rod 16 and the trapezoidal block 17.

[0039] refer to Figure 4 The base 1 has an opening 19 at the top, and a linkage plate 20 is fixedly connected to the back of the screw sleeve 10. The side of the linkage plate 20 away from the screw sleeve 10 passes through the opening 19 and is fixedly connected to the bottom of the trapezoidal block 17.

[0040] As a technical optimization of this utility model, when the screw sleeve 10 moves, the trapezoidal block 17 is driven to move horizontally in sync with the linkage plate 20, ensuring that the position of the trapezoidal block 17 matches the flipping angle of the lower mold 2, avoiding the lag or advance of the lifting action of the mold core 4, which can improve the system coordination and reduce the risk of failure.

[0041] The working principle and usage process of this utility model are as follows: The upper mold 3 and the lower mold 2 are closed, the mold core 4 is embedded in the lower mold 2 to form a cavity, the molten material is injected to form the prosthesis, the material cools and solidifies, and the prosthesis fits with the mold core 4 and the inner wall of the lower mold 2. At this time, the worker rotates the rotating wheel 14 on the front of the connecting frame 8 to drive the screw 9 to rotate. The screw 9 drives the threaded sleeve 10 connected to it to move horizontally along the guide rod 15. When the threaded sleeve 10 moves, the extension rods 11 on both sides of its top push the sleeve plate 12, so that the shaft tube 6 fixedly connected to the lower mold 2 rotates around the bracket 5. The shaft tube 6 drives the entire lower mold 2 to rotate around the axis of the bracket 5 at a certain angle, while the threaded sleeve 10 drives the trapezoidal block 17 to move horizontally through the linkage plate 20 on the back. When the lower mold 2 rotates, the force rod 16 at the bottom of the mold core 4 swings with the mold, and the roller 18 at its end contacts the inclined surface of the trapezoidal block 17. After being squeezed, it slides along the inclined surface, forcing the force rod 16 to move upward. The force rod pushes the mold core 4 out of the lower mold 2, further pushing the prosthesis out of the cavity.

[0042] In summary: This dental prosthesis processing mold, driven by the transmission structure 7, rotates the lower mold 2 around the shaft tube 6, using gravity to naturally separate the prosthesis from the inner wall of the mold, reducing the difficulty of manual removal. The mold core 4 is designed to be raised and lowered in conjunction with the rotation action to further eject the prosthesis, solving the problem of material removal difficulties caused by excessive tightness. The rotational connection between the shaft tube 6 and the bracket 5 enables the rotation function without the need for a complex power mechanism, thus reducing costs.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mold for processing dentures, comprising a base (1); a lower mold (2) arranged on the top of the base (1); characterized in that The top of the lower mold (2) is provided with an upper mold (3), the inside of the lower mold (2) is inlaid with a mold core (4), the mold core (4) can move up and down, both sides of the top of the base (1) are fixedly connected with supports (5), both sides of the lower mold (2) are fixedly connected with shaft tubes (6), the outer ends of the shaft tubes (6) penetrate through the supports (5) and extend to the outside of the supports (5), the supports (5) are movably connected with the shaft tubes (6), the bottom of the base (1) is provided with a transmission structure (7), the transmission structure (7) can drive the lower mold (2) to overturn and swing.

2. The denture processing mold of claim 1, wherein: The transmission structure (7) comprises a connecting frame (8) fixedly connected to the bottom of the base (1), a screw rod (9) movably connected to the inside of the connecting frame (8) through a bearing, a screw sleeve (10) threadedly connected to the surface of the screw rod (9), extension rods (11) fixedly connected to both sides of the top of the screw sleeve (10), a sleeve plate (12) fixedly connected to the outer end of the shaft tube (6), the extension rods (11) extending to the outside of the sleeve plate (12) away from the screw sleeve (10), a sliding rod (13) fixedly connected to the inside of the sleeve plate (12) away from the screw sleeve (10), the sliding rod (13) is movably connected with the sleeve plate (12), and a rotating wheel (14) for driving the screw rod (9) to rotate is arranged on the front surface of the connecting frame (8).

3. The denture processing mold of claim 2, wherein: Both sides of the inside of the connecting frame (8) are fixedly connected with guide rods (15), and the screw sleeve (10) is sleeved on the surface of the guide rods (15) and movably connected with the guide rods (15).

4. The denture processing mold of claim 2, wherein: The bottom of the mold core (4) is fixedly connected with a stress rod (16), the top of the base (1) is provided with a trapezoidal block (17) located at the bottom of the stress rod (16), and the stress rod (16) can be in contact with and pressed against the inclined surface of the trapezoidal block (17) and drive the mold core (4) to rise when the lower mold (2) swings.

5. The denture processing mold of claim 4, wherein: The inner side of the stress rod (16) is movably connected with a roller (18) through a pin shaft, and the outer surface of the roller (18) is in contact with the surface of the trapezoidal block (17).

6. The denture processing mold of claim 4, wherein: An opening (19) is formed in the top of the base (1), a linkage plate (20) is fixedly connected to the back surface of the screw sleeve (10), one side of the linkage plate (20) away from the screw sleeve (10) penetrates through the opening (19) and is fixedly connected with the bottom of the trapezoidal block (17).

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