A precise cutting device for denture wax patterns

Abstract

The utility model discloses a kind of accurate cutting device of denture wax pattern, including for the engraver of denture wax pattern engraving cutting and the cutter bar for fixing engraver, the outside of the cutter bar is provided with auxiliary assembly;The auxiliary assembly includes extension rod, one end of the extension rod is fixedly connected with cutter bar by connecting structure, the other end of the extension rod is installed with the carrying station by quick -mounting structure, the cleaning structure that the wax scrap of the one side of the carrying station can be engraved to wax pattern surface is promptly swept away is installed;The utility model is integrated design, let operator in the engraving process can be controlled by the motor switch on extension rod at any time control brush opening and closing, without interrupting processing procedure, save the time of repeatedly putting down engraver, cleaning wax scrap, re-take engraver, can improve denture wax pattern manufacturing efficiency, the inclination design of extension rod and with bending towards engraver, both ensure that brush can accurately cover engraving area, also can not obstruct operator vision.

Description

Technical Field

[0001] This utility model relates to the field of denture manufacturing technology, specifically to a device for precise cutting of denture wax patterns. Background Technology

[0002] Dental wax models are preliminary models made from the patient's oral impression. After initial cutting, they need to be precisely hand-carved by a technician to simulate the shape and occlusion of natural teeth, forming a wax prototype. Subsequent processes such as embedding and casting will then be carried out based on this model to ultimately create a finished denture that fits the patient's mouth.

[0003] In existing technologies, since the carving of denture wax patterns needs to take into account the fine structures of the proximal and occlusal surfaces of teeth, traditional carving tools are usually designed to be simple in structure, small and light in order to ensure the flexibility of the technician during operation and meet the needs of fine processing.

[0004] Because wax debris is continuously generated and adheres to the surface of the wax model during the carving process, if it is not cleaned in time, it will cover the predetermined cutting points and carving paths, affecting the dimensional accuracy of the denture wax model. Therefore, during the cutting and carving process, the operator needs to frequently put down the carving knife, change the brush to clean the wax debris, and then pick up the carving knife again to continue processing. This repeated tool switching operation affects the continuity of processing, thereby affecting the production efficiency of denture wax models. Utility Model Content

[0005] The purpose of this utility model is to provide a precision cutting device for denture wax patterns. By setting an auxiliary component with a cleaning structure on the outside of the blade, wax debris can be removed instantly without switching tools, preventing wax debris from covering the cutting point and carving trajectory. At the same time, the angle and structure of the auxiliary component do not affect the normal use of the carving knife.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a precision cutting device for denture wax patterns, comprising a carving knife for carving and cutting denture wax patterns and a knife bar for fixing the carving knife, wherein an auxiliary component is provided on the outside of the knife bar;

[0007] The auxiliary component includes an extension rod, one end of which is fixedly connected to the tool holder via a connecting structure, and the other end of which is mounted on a mounting platform via a quick-release structure. A cleaning structure capable of instantly removing wax debris carved on the surface of the wax model is installed on one side of the mounting platform.

[0008] Preferably, the cleaning structure includes an electric motor and a brush fixed to the output end of the electric motor. A motor switch for controlling the opening and closing of the electric motor is installed on the outer wall of the extension rod, and the motor switch is located on the side of the extension rod facing the blade.

[0009] Preferably, the blade holder includes a fixing part for the thumb and forefinger to pinch and a limiting part for placing in the web of the hand. A mounting part for mounting a connecting structure is provided between the fixing part and the limiting part, and the mounting part has a flat groove.

[0010] Preferably, the connection structure includes a connecting piece welded to one end of the extension rod, and both ends of the connecting piece and the mounting portion are provided with screw holes for screws to be screwed in.

[0011] Preferably, the quick-connect structure includes a quick connector, the extension rod has a groove inside, a limit block is slidably connected in the groove, a top rod is fixed on one side of the limit block, a spring is fixed in the groove, and one end of the spring is fixedly connected to the other side of the limit block.

[0012] Preferably, the quick-connect structure further includes a mounting hole formed on the outer wall of the quick connector, and the top rod is inserted into the mounting hole.

[0013] Preferably, the extension rod is inclined relative to the carving knife, the extension rod is L-shaped, and one end of the extension rod is bent toward the direction of the carving knife.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. Through integrated design, this utility model allows operators to control the opening and closing of the brush at any time during the carving process via the motor switch on the extension rod, without interrupting the processing flow. This saves time spent repeatedly putting down the carving knife, cleaning wax shavings, and picking up the carving knife again, thus improving the efficiency of denture wax model making.

[0016] 2. The inclined design of the extension rod of this utility model, with a bend towards the carving knife, ensures that the brush can accurately cover the carving area without obstructing the operator's view or interfering with the fine movement of the carving knife. The knife handle retains the fixed and limiting parts of the traditional carving knife, and adds an installation part in the middle, which makes it convenient for the thumb and forefinger to pinch and limit the hand, without affecting the extension rod to extend outward and without affecting the flexibility of the carving knife operation. Attached Figure Description

[0017] Figure 1 This is an isometric drawing of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the tool holder of this utility model;

[0019] Figure 3 This is a schematic diagram of the quick-assembly structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the connection structure between the extension rod and the quick connector of this utility model.

[0022] In the diagram: 1. Engraving knife; 2. Knife handle; 3. Extension rod; 4. Connecting structure; 5. Quick-release structure; 6. Mounting platform; 7. Electric motor; 8. Brush; 9. Motor switch;

[0023] 201. Fixing part; 202. Limiting part; 203. Mounting part; 204. Flat groove;

[0024] 301. Bending;

[0025] 401. Connecting piece; 402. Screw hole;

[0026] 501. Quick connector; 502. Slide groove; 503. Limit block; 504. Top rod; 505. Spring; 506. Mounting hole. 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] Please see Figure 1-5 This utility model provides a technical solution: a precision cutting device for denture wax patterns, including a carving knife 1 for carving and cutting denture wax patterns and a knife bar 2 for fixing the carving knife 1. The carving knife 1 is in direct contact with the denture wax pattern. The carving and cutting of the wax pattern is achieved by the operator holding the knife bar 2 and controlling the trajectory, thereby completing the processing of fine structures such as the proximal surfaces and occlusal surfaces of teeth. The external part of the knife bar 2 is provided with auxiliary components.

[0029] The auxiliary component includes an extension rod 3, such as Figure 2 As shown, one end of the extension rod 3 is fixedly connected to the tool bar 2 via the connecting structure 4, and the other end of the extension rod 3 is mounted on a mounting platform 6 via a quick-release structure 5. The mounting platform 6 is as follows... Figure 3 As shown, auxiliary lighting can also be installed at the bottom as needed. One side of the mounting platform 6 is equipped with a cleaning structure that can instantly remove wax debris from the surface of the wax model during carving. By setting up this cleaning structure, during the carving process, the operator moves the cutting tool 2, causing the extension rod 3 to follow, and the brush 8 is positioned to clean the area that needs cleaning, instantly removing the generated wax debris and preventing it from obscuring the cutting points and carving path.

[0030] The cleaning structure includes an electric motor 7 and a brush 8 fixed to the output end of the electric motor 7. A motor switch 9 for controlling the opening and closing of the electric motor 7 is installed on the outer wall of the extension rod 3. The motor switch 9 is located on the side of the extension rod 3 facing the blade 2. Figure 2 As shown, the brush 8 is positioned with the carving knife 1 facing the denture wax model. When it is necessary to clean the wax residue from the newly carved area, manually move the knife handle 2 so that the brush 8 is aligned with the target position. Raise your index finger so that the back of your finger touches the motor switch 9 to start the electric motor 7. There is no need to lower the knife handle 2 to change tools. It can be operated with one hand, which is convenient and can improve the continuity of operation.

[0031] The blade holder 2 includes a fixing part 201 for the thumb and forefinger to grip and a limiting part 202 for placing in the web of the hand. A mounting part 203 for mounting the connecting structure 4 is provided between the fixing part 201 and the limiting part 202. The mounting part 203 has a flat groove 204. By providing the mounting part 203 between the fixing part 201 and the limiting part 202 of the conventional blade holder 2, the flexibility of the hand in holding the blade holder 2 is not affected.

[0032] The connecting structure 4 includes a connecting piece 401 welded to one end of the extension rod 3. Both ends of the connecting piece 401 and the mounting part 203 are provided with screw holes 402 for screws to be screwed in. By modularizing the auxiliary components as a whole, installation can be achieved by fixing the connecting piece 401 to the outer wall of the tool holder 2.

[0033] The quick-connect structure 5 includes a quick connector 501. The extension rod 3 has a groove 502 inside, and a limiting block 503 is slidably connected within the groove 502. A top rod 504 is fixed to one side of the limiting block 503, and a spring 505 is fixed within the groove 502. One end of the spring 505 is fixedly connected to the other side of the limiting block 503. By providing the quick connector 501, the mounting platform 6 can be quickly connected to the extension rod 3, facilitating the installation or replacement of components on the mounting platform 6.

[0034] The quick-connect structure 5 also includes a mounting hole 506 on the outer wall of the quick connector 501, and the push rod 504 is inserted into the mounting hole 506. When it is necessary to disassemble the quick connector 501, the push rod 504 is pressed into the slide groove 502. The push rod 504 drives the limiting block 503 to compress the spring 505, and the push rod 504 is withdrawn from the mounting hole 506, so the quick connector 501 can be pulled out from the end of the extension rod 3. When it is necessary to install the quick connector 501, the quick connector 501 is directly inserted into the bottom end of the extension rod 3. The quick connector 501 abuts against the push rod 504, forcing the push rod 504 to slide into the slide groove 502. The spring 505 is compressed. When the push rod 504 moves to the mounting hole 506, the push rod 504 is no longer compressed. Under the action of the spring 505, the push rod 504 pops out and inserts into the mounting hole 506 to complete the installation.

[0035] The extension rod 3 is inclined relative to the carving knife 1, the extension rod 3 is L-shaped, and one end of the extension rod 3 is provided with a bend 301 facing the carving knife 1.

[0036] The extension rod 3 is inclined relative to the carving knife 1, so that the cleaning structure (brush 8) fixed at the end of the extension rod 3 forms a certain angle with the carving area of ​​the carving knife 1. When the brush 8 rotates, it can contact the wax model surface from the side, avoiding interference with the carving knife 1 in the same vertical plane. The bend 301 of one end of the extension rod 3 towards the carving knife 1 can shorten the distance between the cleaning structure and the carving knife 1, avoiding the operator from moving the knife rod 2 significantly when cleaning wax residue.

[0037] When in use, the handheld device is used to move the carving knife 1, align it with the predetermined carving position of the denture wax model, and the fine structures such as the adjacent surfaces and occlusal surfaces of the wax model are precisely carved and cut by controlling the force and trajectory.

[0038] The wax shavings generated during the carving process will immediately adhere to the surface of the wax model. Keeping the grip unchanged, by adjusting the arm posture, align the brush 8 at the bent end 301 of the extension rod 3 with the area where the wax shavings are attached, touch the motor switch 9 with the back of your index finger to start the electric motor 7, which will drive the brush 8 to rotate and immediately remove the wax shavings from the carving area, avoiding obstruction of the cutting point and carving trajectory. After cleaning, touch the motor switch 9 again to turn off the brush 8, or set it to automatically turn off within a set time after the motor switch 9 is started, and continue the subsequent carving work without putting down the carving knife 1.

[0039] 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 precision cutting device for denture wax patterns, characterized in that: It includes a carving knife (1) for carving and cutting denture wax patterns and a knife handle (2) for fixing the carving knife (1), and the outside of the knife handle (2) is provided with auxiliary components; The auxiliary component includes an extension rod (3), one end of which is fixedly connected to the cutter bar (2) via a connecting structure (4), and the other end of which is mounted on a mounting platform (6) via a quick-release structure (5). A cleaning structure capable of instantly removing wax debris carved on the surface of the wax model is installed on one side of the mounting platform (6).

2. The precision cutting device for denture wax patterns according to claim 1, characterized in that: The cleaning structure includes an electric motor (7) and a brush (8) fixed to the output end of the electric motor (7). A motor switch (9) for controlling the opening and closing of the electric motor (7) is installed on the outer wall of the extension rod (3). The motor switch (9) is located on the side of the extension rod (3) facing the blade (2).

3. The precision cutting device for denture wax patterns according to claim 2, characterized in that: The blade holder (2) includes a fixing part (201) for the thumb and index finger to pinch and a limiting part (202) for placing in the palm of the hand. A mounting part (203) for mounting the connecting structure (4) is provided between the fixing part (201) and the limiting part (202). The mounting part (203) has a flat groove (204).

4. The precision cutting device for denture wax patterns according to claim 3, characterized in that: The connecting structure (4) includes a connecting piece (401) welded to one end of the extension rod (3). Both ends of the connecting piece (401) and the mounting part (203) are provided with screw holes (402) for screws to be screwed in.

5. The precision cutting device for denture wax patterns according to claim 4, characterized in that: The quick-connect structure (5) includes a quick connector (501), and the extension rod (3) has a groove (502) inside. A limiting block (503) is slidably connected in the groove (502). A top rod (504) is fixed on one side of the limiting block (503). A spring (505) is fixed in the groove (502), and one end of the spring (505) is fixedly connected to the other side of the limiting block (503).

6. The precision cutting device for denture wax patterns according to claim 5, characterized in that: The quick-connect structure (5) also includes a mounting hole (506) on the outer wall of the quick connector (501), and the top rod (504) is inserted into the mounting hole (506).

7. The precision cutting device for denture wax patterns according to claim 2, characterized in that: The extension rod (3) is inclined relative to the engraving knife (1), the extension rod (3) is L-shaped, and one end of the extension rod (3) is bent (301) towards the engraving knife (1).

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