False tooth polishing and shaping device
By designing two sets of grinding mechanisms and a positioning system, simultaneous grinding of both the inner and outer surfaces of complete dentures was achieved, solving the problems of low efficiency and poor uniformity in existing technologies, and improving grinding efficiency, denture comfort, and service life.
Patent Information
- Application Number
- CN202423067005.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-12
AI Technical Summary
The current technology for grinding complete dentures is inefficient and makes it difficult to ensure uniformity on both the inner and outer surfaces, which affects the comfort and lifespan of the dentures.
Two grinding mechanisms are used, including a drive mechanism and a clamping plate distributed vertically. The screw and cam mechanism enable synchronous grinding of the inner and outer surfaces of the denture. Combined with a rubber grinding plate and positioning mechanism, uniformity is ensured.
It achieves comprehensive and uniform polishing of both the inner and outer surfaces of complete dentures, improving polishing efficiency, reducing manual operation time, and enhancing the comfort and lifespan of dentures.
Smart Images

Figure CN223589043U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a false tooth technical field, specifically, a false tooth polishing and shaping device. BACKGROUND
[0002] False teeth, also known as dentures, are artificial devices used to replace missing natural teeth. They can help restore chewing function, improve pronunciation, maintain facial contours, and enhance personal confidence. Depending on the number and location of missing teeth, false teeth can be classified into several types:
[0003] Complete denture: used when all the natural teeth in the upper or lower jaw are missing. Complete dentures cover the entire gum area and are held in place by suction;
[0004] Partial denture: suitable for cases where only some natural teeth are missing. This type of denture usually consists of artificial teeth and a metal framework, sometimes with a plastic base to increase stability. It can be removable or in the form of a fixed bridge, which requires the use of adjacent healthy natural teeth as support points;
[0005] Implant-supported denture: combines dental implant technology with traditional denture design. First, small titanium posts (implants) are implanted into the jawbone, and after healing, dentures are installed on the implants. This method provides more stable support and appearance and functionality close to natural teeth.
[0006] The invention and use of false teeth have greatly improved people's quality of life, enabling many people with missing teeth to regain confident smiles and healthy chewing functions.
[0007] Complete dentures, as a comprehensive repair method for tooth loss, the polishing step in the manufacturing process is crucial. Currently, manual polishing is usually used, that is, artificial hand-held polishing tools are used to polish and shape the surface of the false teeth. However, this manual polishing method not only has low efficiency, but also is difficult to ensure uniform polishing of the inner and outer surfaces of the complete denture, affecting the comfort and service life of the false teeth. Therefore, it is of great significance to develop a device that can efficiently and accurately polish the inner and outer surfaces of the complete denture simultaneously. UTILITY MODEL CONTENT
[0008] In view of the existing deficiencies, the utility model provides a false tooth polishing and shaping device, which adopts two groups of polishing mechanisms and can simultaneously polish the inner and outer surfaces of the complete denture, achieving comprehensive and uniform polishing of the complete denture and improving polishing efficiency.
[0009] To achieve the above purpose, the technical scheme adopted by the utility model is:
[0010] The utility model provides a false tooth polishing and shaping device, including box and base, the box is fixed on the left side of base upper end surface, the inside left side of box is provided with screw rod and rotates, the upper end of screw rod is equipped with knob, the inside right side of box is provided with two groups of driving mechanism which distributes, and two groups driving mechanism all are connected with screw rod through screw thread, the right end of upper driving mechanism is fixed with upper clamping plate, the outer end of lower driving mechanism is fixed with lower clamping plate, the bottom surface of upper clamping plate and the top surface of lower clamping plate all stick with a layer of rubber material's polishing plate, the right side surface of box is provided with two groups of movable slot, and the outer end of two groups driving mechanism respectively from two groups movable slot, be provided with positioning mechanism between upper clamping plate and lower clamping plate, the right side surface of box is provided with a plurality of groups of first positioning rod of arc distribution, the base is fixed with electric push rod, and the right side output is fixedly connected with the push plate, the left side surface of push plate is fixed with a plurality of groups of second positioning rod of arc distribution, and a plurality of second positioning rod position and a plurality of first positioning rod position one to one correspond.
[0011] Further, the screw rod is a double thread structure, and two groups of threads with opposite spiral directions are arranged on the upper and lower sides of the ring surface of the screw rod.
[0012] Further, the driving mechanism includes a support base plate, a motor, a cam, a return spring, a vertical plate, and a connecting rod. The support base plate is arranged inside the box, with its right end extending out of the movable slot and its left end sleeved on the screw rod and screwed therewith. One side of the support base plate is equipped with a motor, and the output end of the motor penetrates through the other side of the support top plate, with a cam mounted on the output end thereof. Two vertical plates are fixedly arranged on the same side of the support base plate as the cam, near the right end edge. A slidable connecting rod is arranged inside the vertical plate. The left end of the connecting rod is in rolling connection with the cam through a roller. A return spring is sleeved on the connecting rod between the roller and the vertical plate. The upper clamping plate is fixedly connected to the right end of the upper connecting rod, and the lower clamping plate is fixedly connected to the right end of the lower connecting rod.
[0013] Further, the support base plate is fixedly provided with an ear plate on both the front and back sides. Two groups of front and back distributed guide support rods are symmetrically arranged inside the right side of the box. The ear plate is sleeved on the guide support rod and in sliding connection therewith.
[0014] Further, the positioning mechanism includes a connecting sheet, a support plate, and a positioning pad. The connecting sheet is arranged in a rectangular frame structure and inside the box. The screw rod is inside the connecting sheet. The left end of the connecting sheet extends out of the left side surface of the box. A support plate is arranged on the right side of the box, with its left end penetrating into the box and fixedly connected with the right end of the connecting sheet. The right end of the support plate is fixedly provided with an arc-shaped positioning pad.
[0015] Further, a stop block is fixedly arranged on the support rod near the middle position.
[0016] Further, the upper clamping plate and the lower clamping plate are arranged in the arc shape of the complete denture, and are made of plastic material.
[0017] Further, the push plate is internally provided with a through groove.
[0018] Further, the base is provided with a sliding rail, and the push plate is provided with a sliding block matched with the sliding rail and connected with the sliding rail.
[0019] Compared with the prior art, the utility model has the advantages of the following:
[0020] 1. The upper clamping plate and the lower clamping plate cooperate with the driving mechanism to polish the inner and outer surfaces of the complete denture simultaneously, realize comprehensive and uniform polishing of the complete denture, and improve the polishing efficiency.
[0021] 2. The utility model improves the polishing efficiency by the mechanical polishing method, reduces the time and labor intensity of manual operation.
[0022] 3. The utility model ensures uniform polishing of the inner and outer surfaces of the denture by precise mechanical positioning and uniform polishing force, and improves the comfort and service life of the denture. BRIEF DESCRIPTION OF DRAWINGS
[0023] Fig. 1 It is a schematic diagram of the overall structure of the utility model.
[0024] Fig. 2 It is a front view of the utility model.
[0025] Fig. 3 It is a schematic diagram of the structure of the box body in the utility model.
[0026] Fig. 4 It is a schematic diagram of the internal structure of the box body in the utility model.
[0027] Fig. 5 It is a schematic diagram of the structure of the driving mechanism in the utility model.
[0028] Fig. 6 It is a schematic diagram of the structure of the positioning mechanism in the utility model.
[0029] Fig. 7 It is a schematic diagram of the local structure of the utility model.
[0030] In the diagram: 1. Knob; 2. Housing; 3. Upper plate; 4. Positioning mechanism; 41. Connecting piece; 42. Support plate; 43. Stop block; 44. Positioning pad; 5. Lower plate; 6. Electric push rod; 7. Push plate; 8. Base; 9. Drive mechanism; 91. Support base plate; 92. Motor; 93. Cam; 94. Ear plate; 95. Return spring; 96. Vertical plate; 97. Connecting rod; 10. First positioning rod; 11. Movable slot; 12. Threaded screw; 13. Guide rod; 14. Grinding plate; 15. Second positioning rod; 16. Through slot; 17. Slider; 18. Slide rail. Detailed Implementation
[0031] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0032] Example:
[0033] like Figs. 1 to 7 As shown, a denture grinding and shaping device includes a housing 2 and a base 8. The housing 2 is fixed to the left side of the upper end face of the base 8. A threaded screw 12 is vertically rotatably mounted on the left side inside the housing 2. A knob 1 is mounted on the upper end of the threaded screw 12. Two sets of vertically distributed drive mechanisms 9 are arranged on the right side inside the housing 2, and both sets of drive mechanisms 9 are connected to the threaded screw 12 by threaded engagement. An upper clamping plate 3 is fixed to the right end of the upper drive mechanism 9, and a lower clamping plate 5 is fixed to the outer end of the lower drive mechanism 9. A layer of rubber grinding plate 14 is attached to the bottom surface of the upper clamping plate 3 and the top surface of the lower clamping plate 5. The upper clamping plate 3 and the lower clamping plate 5 are used to clamp the denture and grind the denture through the grinding plate 14 on their bottom surfaces. Two sets of movable slots 11 are opened on the right side face of the housing 2, and the outer ends of the two sets of drive mechanisms 9 are connected to the base 8. Extending from two sets of movable slots 11, a positioning mechanism 4 is provided between the upper clamping plate 3 and the lower clamping plate 5. Multiple sets of arc-shaped first positioning rods 10 are provided on the right side of the housing 2. An electric push rod 6 is fixed on the base 8, and a push plate 7 is fixedly connected to the right output end. Multiple sets of arc-shaped second positioning rods 15 are fixed on the left side of the push plate 7, and the positions of the multiple sets of second positioning rods 15 correspond one-to-one with the positions of the multiple sets of first positioning rods 10. The first positioning rods 10 can cooperate with the second positioning rods to clamp and fix the complete denture, so as to achieve precise positioning of the complete denture and facilitate subsequent grinding. This design solves the problems of existing manual grinding methods, which are not only inefficient, but also difficult to ensure uniform grinding of the inner and outer surfaces of the complete denture, affecting the comfort and service life of the denture.
[0034] In the embodiment, the threaded rod 12 is a double-thread structure, and two groups of threads with opposite helical directions are arranged on the upper and lower sides of the annular surface of the threaded rod 12. The two groups of threads with opposite helical directions are arranged to realize the synchronous but opposite-direction movement of the driving mechanism 9 on the threaded rod 12, thereby realizing the precise control of the driving mechanism 9.
[0035] In the embodiment, the driving mechanism 9 includes a support bottom plate 91, a motor 92, a cam 93, a reset spring 95, a vertical plate 96, and a connecting rod 97. The support bottom plate 91 is arranged inside the box body 2, and the right end of the support bottom plate 91 extends from the movable slot 11, and the left end of the support bottom plate 91 is sleeved on the threaded rod 12 and is screwed with the threaded rod 12. The support bottom plate 91 serves as the support basis of the entire driving mechanism 9, and is screwed with the threaded rod 12 to realize the up-down movement of the entire driving mechanism 9. One side of the support bottom plate 91 is assembled with the motor 92, and the motor 92 provides a power source to drive the cam 93 to rotate. The output end of the motor 92 penetrates through the other side of the support top plate, and the output end of the motor 92 is assembled with the cam 93. The cam 93 can convert the rotary motion of the motor 92 into the linear motion of the connecting rod 97 to realize the reciprocating motion of the connecting rod 97. Two groups of vertical plates 96 are fixedly arranged on the same side of the support bottom plate 91 near the right end edge, and are used to support and guide the connecting rod 97. The vertical plates 96 are internally penetrated with the slidable connecting rod 97. The left end of the connecting rod 97 is rollingly connected with the cam 93 through a roller, and realizes reciprocating motion under the drive of the cam 93, thereby driving the upper clamping plate 3 or the lower clamping plate 5 to perform horizontal reciprocating motion. The reset spring 95 is sleeved on the connecting rod 97 between the roller and the vertical plate 96. The upper clamping plate 3 is fixedly connected to the right end of the upper connecting rod 97, and the lower clamping plate 5 is fixedly connected to the right end of the lower connecting rod 97.
[0036] It should be noted that when the threaded rod 12 rotates, the support bottom plate 91 moves up and down along the threaded rod 12. After the motor 92 is started, the cam 93 is driven to rotate. The non-circular design of the cam 93 enables the connecting rod 97 to realize reciprocating motion under the rolling of the roller. The reciprocating motion of the connecting rod 97 drives the upper clamping plate 3 and the lower clamping plate 5 to move synchronously and reciprocally, thereby realizing the polishing of the denture. After the cam 93 rotates, the reset spring 95 helps the connecting rod 97 and the roller to reset, preparing for the next reciprocating motion.
[0037] In the embodiment, the support bottom plate 91 is fixedly provided with an ear plate 94 on the front and back sides. Two groups of front and back distributed guide support rods 13 are symmetrically arranged on the right side inside the box body 2. The ear plate 94 is sleeved on the guide support rod 13 and is slidably connected with the guide support rod 13. The ear plate 94 cooperates with the guide support rod 13 to provide stable guidance and support for the support bottom plate 91, which can reduce friction, improve sliding smoothness, ensure the up-down movement of the support bottom plate 91 along the set track, and ensure the stability and accuracy of the movement.
[0038] In the embodiment, the positioning mechanism 4 comprises a connecting plate 41, a supporting plate 42 and a positioning pad 44, the connecting plate 41 is arranged in a rectangular frame structure and is arranged inside the box body 2, the threaded rod 12 is located inside the connecting plate 41, the left end of the connecting plate 41 extends from the left side of the box body 2, and the manual control of the positioning mechanism 4 is facilitated through the extending connecting plate 41, the supporting plate 42 is arranged at the right side of the box body 2, the left end of the supporting plate 42 extends into the box body 2 and is fixedly connected with the right end of the connecting plate 41, the right end of the supporting plate is fixedly provided with the arc-shaped positioning pad 44, the positioning pad 44 is used for supporting and positioning the denture, and the arc-shaped structure arranged at the same time can better adapt to the shape of the denture, and the accuracy and stability of positioning are improved.
[0039] In the embodiment, the stop block 43 is fixedly arranged on the supporting rod near the middle position, and the main function of the stop block 43 is to limit the movement range of the connecting plate 41 and prevent the connecting plate 41 from excessively moving and contacting the threaded rod 12 to affect the normal rotation of the threaded rod 12.
[0040] In the embodiment, the upper clamping plate 3 and the lower clamping plate 5 are both arranged in an arc-shaped structure matched with the full denture and are both made of plastic material, so that the upper clamping plate 3 and the lower clamping plate 5 have plasticity, that is, can deform. The design makes the upper clamping plate 3 and the lower clamping plate 5 better match the curved surface shape of the full denture. Since the surface of the full denture is usually not completely flat but has a certain curvature, the arc-shaped clamping plate with plasticity can better wrap the denture and ensure the polishing effect of the denture.
[0041] In the embodiment, the push plate 7 is provided with a through groove 16, and the through groove 16 facilitates observation of the polished denture.
[0042] In the embodiment, the base 8 is provided with a sliding rail 18, the push plate 7 is provided with a sliding block 17 matched with the sliding rail 18, the sliding block 17 is clamped into the sliding rail 18 and is in sliding connection with the sliding rail 18, the sliding rail 18 matched with the sliding block 17 provides a stable sliding track for the push plate 7, ensures smooth movement of the push plate 7 along the predetermined track, and guarantees the movement stability of the push plate 7.
[0043] The working principle of the denture polishing and shaping device is as follows: in actual use, first, the left end of the connecting sheet 41 is pushed to the right, so that the positioning pad plate 44 is moved to the position between the upper clamping plate 3 and the lower clamping plate 5, then the complete denture is clamped on the positioning pad plate 44, at this time, the left side surface of the complete denture is aligned with the first positioning rod 10. The electric push rod 6 is started, and the control electric push rod 6 is retracted, the push plate 7 is driven to move to the left by the electric push rod 6, until the second positioning rod 15 abuts against the right side surface of the complete denture, the clamping and fixing of the complete denture are realized through the first positioning rod 10 and the second positioning rod 15, then the connecting sheet 41 is pulled to the left, and the positioning pad plate 44 is pulled out from the inside of the complete denture. The knob 1 is rotated, the positions of the upper clamping plate 3 and the lower clamping plate 5 are adjusted, so that the polishing plate 14 on the upper clamping plate 3 and the lower clamping plate 5 is in close contact with the upper and lower surfaces of the denture. The motor 92 is started, the cam 93 starts to rotate, the connecting rod 97 and the upper clamping plate 3 and the lower clamping plate 5 are driven to reciprocate, and the polishing of the denture is started. The position and intensity of polishing are adjusted at any time through the observation of the through slot 16, and the uniform polishing effect is ensured. After polishing, the motor 92 is turned off, the second positioning rod 15 on the right side is loosened, and the denture is taken out.
[0044] In summary, the denture polishing and shaping device realizes accurate positioning, uniform polishing and convenient operation of the complete denture through the cooperation of different mechanisms, the working principle is clear and simple to understand, the use process is simple, the efficiency and accuracy of the denture polishing are greatly improved, and strong support is provided for the field of oral medical treatment.
[0045] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model, and for ordinary skilled persons in the art, other different forms of changes or changes can be made on the basis of the above description, all the embodiments cannot be exhausted here, and any obvious changes or changes derived from the technical solutions of the utility model still fall within the protection scope of the utility model.
Claims
1. A device for grinding and shaping a denture, comprising a housing (2) and a base (8), characterized in that: The box (2) is fixed on the left side of the upper end face of the base (8), a threaded screw rod (12) is vertically arranged on the left side of the inside of the box (2), a knob (1) is assembled on the upper end of the threaded screw rod (12), two groups of driving mechanisms (9) are arranged on the right side of the inside of the box (2) and are distributed in an up-down manner, the two groups of driving mechanisms (9) are connected with the threaded screw rod (12) through thread engagement, an upper clamping plate (3) is fixed on the right end of the upper driving mechanism (9), a lower clamping plate (5) is fixed on the outer end of the lower driving mechanism (9), a layer of rubber polishing plate (14) is attached to the bottom surface of the upper clamping plate (3) and the top surface of the lower clamping plate (5), two groups of movable notches (11) are formed on the right side of the box (2), the outer ends of the two groups of driving mechanisms (9) respectively extend from the two groups of movable notches (11), a positioning mechanism (4) is arranged between the upper clamping plate (3) and the lower clamping plate (5), a plurality of first positioning rods (10) are arranged on the right side of the box (2) and are distributed in an arc shape, an electric push rod (6) is fixed on the base (8), and a push plate (7) is fixedly connected to the right side output end of the electric push rod (6), a plurality of second positioning rods (15) are fixed on the left side surface of the push plate (7) and are distributed in an arc shape, and the positions of the plurality of second positioning rods (15) correspond to the positions of the plurality of first positioning rods (10) one by one.
2. The device of claim 1, wherein: The threaded screw rod (12) has a double-thread structure, and two groups of threads with opposite spiral directions are arranged on the upper and lower sides of the ring surface of the threaded screw rod (12).
3. The denture burnishing reshaping device of claim 1, wherein: The driving mechanism (9) comprises a support bottom plate (91), a motor (92), a cam (93), a reset spring (95), a vertical plate (96) and a connecting rod (97), the support bottom plate (91) is arranged in the inside of the box (2), the right end of the support bottom plate (91) extends from the movable notch (11), and the left end of the support bottom plate (91) is sleeved on the threaded screw rod (12) and is screwed therewith, the motor (92) is assembled on one side of the support bottom plate (91), the output end of the motor (92) penetrates through the other side of the support top plate, and the output end of the motor (92) is assembled with the cam (93), two vertical plates (96) are fixed on the same side of the support bottom plate (91) and are close to the right end edge, the vertical plate (96) is internally penetrated with the slidable connecting rod (97), the left end of the connecting rod (97) is rolling connected with the cam (93) through a roller, the reset spring (95) is sleeved on the connecting rod (97) between the roller and the vertical plate (96), the upper clamping plate (3) is fixedly connected to the right end of the upper connecting rod (97), and the lower clamping plate (5) is fixedly connected to the right end of the lower connecting rod (97).
4. The device of claim 3, wherein: The ear plates (94) are sleeved on the guide supporting rods (13) and are slidingly connected therewith.
5. The device of claim 4, wherein: The positioning mechanism (4) comprises a connecting plate (41), a supporting plate (42) and a positioning pad (44), the connecting plate (41) is arranged in a rectangular frame structure and is arranged inside the box (2), the threaded rod (12) is located inside the connecting plate (41), the left end of the connecting plate (41) extends from the left side of the box (2), the right side of the box (2) is provided with the supporting plate (42), and the left end of the supporting plate (42) penetrates into the box (2) and is fixedly connected with the right end of the connecting plate (41), and the right end of the supporting rod is fixedly provided with the arc-shaped positioning pad (44).
6. The device of claim 5, wherein: The supporting rod is fixedly provided with a stop block (43) near the middle position.
7. The denture burnishing reshaping device of claim 1, wherein: The upper clamping plate (3) and the lower clamping plate (5) are both arranged in an arc-shaped structure suitable for full denture, and are both made of plastic material.
8. The denture burnishing reshaping device of claim 1, wherein: The push plate (7) is internally provided with a through groove (16).
9. The denture burnishing reshaping device of claim 1, wherein: The base (8) is provided with a sliding rail (18), the push plate (7) is provided with a sliding block (17) matched with the sliding rail (18), and the sliding block (17) is clamped into the sliding rail (18) and is in sliding connection with the sliding rail (18).