A tooth crushing device

Abstract

The present invention relates to a tooth crusher, comprising a housing and a bottom plate which cover each other, wherein the following equipment is arranged in a chamber formed by the housing and the bottom plate: a main controller; a disposable tooth crushing box, a sealed chamber is arranged in the disposable tooth crushing box, and a movable grinding head for grinding and crushing teeth is arranged in the sealed chamber; a main power output mechanism with a retractable power output shaft, which can be connected with the movable grinding head of the disposable tooth crushing box after the power output shaft is extended and drives the movable grinding head to work; a conveying mechanism for conveying the disposable tooth crushing box to the front of the power output shaft; a stepping reduction mechanism for connecting the main power output mechanism; and a DC power supply electrically connected to the stepping reduction mechanism, the main power output mechanism, and the conveying mechanism. The present invention has the advantages of simple operation, high working efficiency, sealing arrangement during processing, reduced noise, and low cost.

Description

Technical Field

[0001] The invention relates to the technical field of front-end processing of tooth DNA detection and medical treatment and detection such as autologous tooth bone powder implantation, and specifically relates to a tooth crusher used at room temperature. Background Art

[0002] In the existing tooth DNA testing process, the teeth need to be crushed to a certain particle size before DNA testing can be performed. When using autologous dental bone powder for dental implants, the teeth also need to be crushed into powder.

[0003] At present, the front-end processing of tooth DNA testing is simply to use a container and manually crush the teeth with tools, which is noisy, time-consuming and labor-intensive. The commonly used method is to use a low-temperature pulverizer, which uses liquid nitrogen to cool the pulverized object to dozens of degrees below zero and then pulverize it with high-frequency impact. The operation is cumbersome and inconvenient, and the operation time is long. At the same time, liquid nitrogen must be kept on hand, which has safety risks and high cost, so it needs to be improved. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a tooth crusher, which has the advantages of simple operation, high working efficiency, sealing setting during processing, reduced noise and low cost.

[0005] The technical solution of the present invention is: a tooth crusher, comprising a housing and a bottom plate covering each other, and the following equipment is arranged in a chamber formed by the housing and the bottom plate:

[0006] A main controller responsible for controlling the operation of each electrical component and receiving and processing various signals and data;

[0007] A disposable tooth crushing box, wherein a sealed chamber is provided in the disposable tooth crushing box, and a movable grinding head for grinding and crushing teeth is provided in the sealed chamber;

[0008] A main power output mechanism with a retractable power output shaft, which can be connected to the movable grinding head of the disposable tooth crushing box after being extended to drive the movable grinding head to work;

[0009] A conveying mechanism for conveying the disposable tooth crushing box to the front of the power output shaft;

[0010] A stepping reduction mechanism for connecting to the main power output mechanism;

[0011] A DC power supply electrically connected to the stepping reduction mechanism, the main power output mechanism, and the conveying mechanism;

[0012] Wherein, the main controller is electrically connected to the stepping deceleration mechanism and the conveying mechanism.

[0013] In order to facilitate operation and further reduce noise, the disposable tooth crushing box includes a box body, a fixed grinding head and a movable grinding head. A fixed grinding head and a movable grinding head are respectively provided at both ends of the box body. The fixed grinding head and the movable grinding head cooperate with the box body to form the sealed chamber inside the box body. A sealing groove is provided on the fixed grinding head and the movable grinding head, and a sealing ring is provided in the sealing groove. A window for placing teeth into the sealed chamber is provided at the front end of the box body, and a sealing piece is provided on the window.

[0014] In order to make the operation of the entire structure simpler, a boss for determining the positioning direction of the fixed grinding head is provided on one side of the fixed grinding head, a hexagonal positioning slot is provided on one side of the movable grinding head, a hexagonal block matching the hexagonal positioning slot is provided at one end of the power output shaft, and protruding sharp teeth located in the sealed chamber are provided on the other side of the movable grinding head and the other side of the fixed grinding head. The movable grinding head can reciprocate and rotate in the box body, so that the protruding sharp teeth on the movable grinding head and the protruding sharp teeth on the fixed grinding head can engage with each other.

[0015] For the convenience of operation, an operation screen for sending instructions, setting, displaying and querying relevant data, and a scanner for data identification and scanning of the sample tooth pulverizing box are provided at the front end of the shell. A heat dissipation device for reducing the temperature inside the pulverizer and absorbing dust inside the pulverizer, as well as a USB interface for copying data are provided on the side of the shell. The operation screen, USB interface and scanner are electrically connected to the main controller. An entry and exit hatch is provided at the front end of the shell, and a hatch cover for closing the entry and exit hatch is elastically connected to the conveying mechanism.

[0016] In order to reduce shock and avoid loud noise when moving, shock-absorbing pads are provided under the base plate.

[0017] Preferably, the scanner is installed in a scanning window on the upper right side of the front end of the housing, and the USB interface is installed on the front right side of the housing.

[0018] Preferably, the shock-absorbing foot pads are installed at the four corner ends below the base plate, with a total of four.

[0019] In order to make the entire operation simpler, the conveying mechanism is installed at the right end of the main power output mechanism, and the conveying mechanism includes a screw stepper motor, a linear guide, a fixed base and a conveying platform. The output of the screw stepper motor is connected to a screw, and the screw is provided with a screw slider. The conveying platform is connected to a linear guide bar that is slidably connected to the linear guide, and the other end of the linear guide bar passes through the fixed base and is connected to the screw slider. The screw stepper motor is fixed to the side of the fixed base, and the box body is clamped in the fixed base through a boss. A positioning pin for positioning the tooth crushing box is provided in the conveying platform, and a positioning slot is provided on the side of the fixed base to cooperate with the boss to clamp the fixed grinding head in the working state, so that the fixed grinding head remains in a non-rotatable state.

[0020] Preferably, the main power output mechanism comprises a mounting connecting plate which cooperates with each other and a main body which serves as a skeleton, the power output shaft passes through the connecting plate and the main body, the mounting connecting plate is installed on the stepping reduction mechanism, a transition shaft which is inserted into the output main shaft of the stepping reduction mechanism and transmits power through a key connection is arranged on the left side of the power output shaft, the power output shaft and the transition shaft can slide axially and transmit torque, a plane bearing is arranged in the mounting connecting plate, a pressure adjusting seat body located in the main body is arranged on the right side of the plane bearing, the pressure adjusting seat body is used to bear axial force and can rotate in a circumferential direction together with the plane bearing, a pressure adjusting screw, a compression spring and a spring column are installed in the pressure adjusting seat body from left to right in sequence, the middle part of the power output shaft is a screw structure and is connected to a nut, the nut is inserted into a friction resistance sleeve, a radial fitting clearance is arranged between the friction resistance sleeve and the nut, the friction resistance sleeve is fixed in the main body with screws, and the spring pressure transmitted by the nut through the spring column is tightly attached to the end face of the friction resistance sleeve.

[0021] Preferably, there is a 1 mm gap between the left end of the nut and the right end of the pressure adjusting seat to ensure that the nut has space to move when subjected to axial force, and a sleeve located outside the power output shaft is provided at the right end of the installation on the main body, and a travel limit sleeve is provided at the left end of the screw rod portion of the power output shaft for adjusting and limiting the extreme position of the power output shaft extending to the right end.

[0022] The technical effects of the tooth crusher provided by the present invention are: simple overall operation, reduced labor costs, high work efficiency, and a sealing effect during processing to reduce noise in turn, and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an external view of a tooth crusher in this embodiment;

[0024] Figure 2 This is a diagram showing the internal structure of a tooth crusher in this embodiment;

[0025] Figure 3 This is a schematic diagram of the overall structure of the tooth crushing box in this embodiment;

[0026] Figure 4 is a front view of the tooth crushing box in this embodiment;

[0027] Figure 5 for Figure 4 Cross-sectional view of the middle BB;

[0028] Figure 6 Schematic diagram of the structure of the main power output mechanism in this embodiment;

[0029] Figure 7 for Figure 6 Sectional view of AA in the middle;

[0030] Figure 8 Schematic diagram of the structure of the conveying mechanism in the embodiment

[0031] In the accompanying drawings: 1. operating screen; 2. housing; 3. hatch; 4. scanner; 5. USB interface; heat dissipation device 6; 7. shock-absorbing foot pad; 8. bottom plate; 9. main power output mechanism; 9-1. mounting connecting plate; 9-2. body; 9-3. power output shaft; 9-4. transition shaft; 9-5. plane bearing; 9-8. pressure adjustment seat; 9-6. pressure adjustment screw; 9-7. compression spring; 9-9. spring column; 9-10. nut; 9-11. friction resistance sleeve; 9-12. sheath; 9-13. travel limit sleeve; hexagonal block 9-14; 10. tooth crushing box; 10-1. box body; 10-2. fixed grinding head; 1 0-3. Movable grinding head; 10-4. Sealing piece; 10-5. Sealing ring; 10-6. Sealing chamber; 10-7. Sealing groove; 10-8. Window; 10-9. Hexagonal positioning slot; 10-10. Protruding sharp teeth; 10-11. Boss; 11. Conveying mechanism; 11-1. Linear guide rail; 11-2. Fixed base; 11-3. Positioning pin; 11-4. Positioning slot; 11-5. Conveying table; 11-6. Linear guide bar; 12. Stepping reduction mechanism; 13. Main controller; 14. Screw stepping motor 14; 14-1. Screw; 14-2. Screw slider; 15. DC power supply; 16. Stepping motor controller. DETAILED DESCRIPTION

[0032] 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 described embodiments 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 creative work are within the scope of protection of the present invention. Example

[0033] See also Figure 1-2 The present invention provides a technical solution: a tooth crusher, comprising a housing 2 and a bottom plate 8 covering each other, wherein the following equipment is arranged in a chamber formed by the housing 2 and the bottom plate 8:

[0034] A main controller 13 for controlling the operation of various electrical components and receiving and processing various signals and data;

[0035] A disposable tooth crushing box 10, in which a sealed chamber 10-6 is provided, and a movable grinding head 10-3 for grinding and crushing teeth is provided in the sealed chamber 10-6;

[0036] A main power output mechanism 9 with a retractable power output shaft 9-3, which can be connected to a movable grinding head 10-3 of a disposable tooth crushing box 10 after being extended and drive the movable grinding head 10-3 to work;

[0037] A conveying mechanism 11 for conveying a disposable tooth crushing box 10 to the front of the power output shaft 9-3;

[0038] A stepping reduction mechanism 12 for connecting to the main power output mechanism 9;

[0039] A DC power supply 15 electrically connected to the stepping reduction mechanism 12, the main power output mechanism 9, and the conveying mechanism 11;

[0040] The main controller 13 is electrically connected to the stepping deceleration mechanism 12 and the conveying mechanism 11 .

[0041] like Figure 3-Figure 5 As shown, in order to facilitate operation and further reduce noise, the disposable tooth crushing box 10 includes a box body 10-1, a fixed grinding head 10-2 and a movable grinding head 10-3, and the fixed grinding head 10-2 and the movable grinding head 10-3 are respectively provided at both ends of the box body 10-1. The fixed grinding head 10-2 and the movable grinding head 10-3 cooperate with the box body 10-1 to form the sealed chamber 10-6 inside the box body 10-1. A sealing groove 10-7 is provided on the fixed grinding head 10-2 and the movable grinding head 10-3, and a sealing ring 10-5 is provided in the sealing groove 10-7. A window 10-8 for placing teeth into the sealed chamber 10-6 is provided at the front end of the box body 10-1, and a sealing member 10-4 is provided on the window 10-8.

[0042] In order to make the operation of the entire structure easier, a boss 10-11 for determining the positioning direction of the fixed grinding head 10-2 is provided on one side of the fixed grinding head 10-2, a hexagonal positioning slot 10-9 is provided on one side of the movable grinding head 10-3, and a hexagonal block 9-14 cooperating with the hexagonal positioning slot 10-9 is provided at one end of the power output shaft 9-3, and protruding sharp teeth 10-10 located in the sealed chamber 10-6 are provided on the other side of the movable grinding head 10-3 and the other side of the fixed grinding head 10-2. The movable grinding head 10-3 can reciprocate and rotate in the box body 10-1, so that the protruding sharp teeth 10-10 on the movable grinding head 10-3 and the protruding sharp teeth 10-10 on the fixed grinding head 10-2 can mesh with each other.

[0043] For the convenience of operation, an operation screen 1 for sending instructions, setting, displaying and querying relevant data and a scanner 4 for data identification and scanning of the sample tooth pulverizing box are provided at the front end of the shell 2. A heat dissipation device 6 for reducing the temperature inside the pulverizer and absorbing dust inside the pulverizer and a USB interface 5 for copying data are provided on the side of the shell 2. The operation screen 1, USB interface 5 and scanner 4 are electrically connected to the main controller 13. An entry and exit hatch 2-1 is provided at the front end of the shell 2, and a hatch cover 3 for closing the entry and exit hatch 2-1 is elastically connected to the conveying mechanism 11.

[0044] In order to reduce shock and avoid generating loud noise during movement, a shock-absorbing foot pad 7 is provided under the bottom plate 8 .

[0045] Preferably, the scanner 4 is installed in a scanning window at the upper right side of the front end of the housing 2 , and the USB interface 5 is installed on the front right side of the housing 2 .

[0046] Preferably, the shock-absorbing foot pads 7 are installed at the four corner ends below the base plate 8, with a total of four, to absorb the slight vibration generated when the tooth crusher is working, while preventing the instrument from being easily moved.

[0047] like Figure 2 , Figure 8As shown, in order to make the entire operation simpler, the conveying mechanism 11 is installed at the right end of the main power output mechanism 9, and the conveying mechanism 11 includes a screw stepper motor 14, a linear guide rail 11-1, a fixed base 11-2 and a conveying platform 11-5. The output of the screw stepper motor 14 is connected to a screw 14-1, and a screw slider 14-2 is provided on the screw 14-1. The conveying platform 11-5 is connected to a linear guide bar 11-6 that is slidably connected to the linear guide rail 11-1. The other end of the linear guide bar 11-6 passes through the fixed base 11-2 and is connected to the screw slider 14-2. The screw stepper motor 14 is fixed to the fixed base 11 -2 side, the box body 10-1 is clamped in the fixed base 11-2 through the boss 10-11, and a positioning pin 11-3 for locating the position of the tooth crushing box is arranged in the conveying platform 11-5. A positioning groove 11-4 is arranged on the side of the fixed base 11-2, which cooperates with the boss 10-11 to clamp the fixed grinding head 10-2 in the working state, so that the fixed grinding head 10-2 remains in a non-rotatable state. When working, the conveying platform 11-5 slides into the fixed base 11-2 along with the linear guide bar 11-6, and ensures that the boss 10-11 on the fixed grinding head 10-2 and the positioning groove 11-4 can fix the position of the box body.

[0048] like Figure 6 , Figure 7 As shown, as a preference, the main power output mechanism 9 includes a mounting connecting plate 9-1 that cooperates with each other and a main body 9-2 that serves as a skeleton, the power output shaft 9-3 passes through the mounting connecting plate 9-1 and the main body 9-2, the mounting connecting plate 9-1 is installed on the step reduction mechanism 12, and a transition shaft 9-4 is provided on the left side of the power output shaft 9-3, which is inserted into the output main shaft of the step reduction mechanism 12 and transmits power through a key connection, the power output shaft 9-3 and the transition shaft 9-4 can slide axially and transmit torque, a plane bearing 9-5 is provided in the mounting connecting plate 9-1, and a pressure adjustment seat body 9-8 located in the main body 9-2 is provided on the right side of the plane bearing 9-5, and the pressure The force adjustment seat body 9-8 is used to bear the axial force and can rotate in the circumferential direction together with the plane bearing 9-5. The pressure adjustment screw 9-6, the compression spring 9-7 and the spring column 9-9 are installed in the pressure adjustment seat body 9-8 from left to right. The middle part of the power output shaft 9-3 is a screw structure and is connected to a nut 9-10. The nut 9-10 is inserted into a friction resistance sleeve 9-11. A radial fitting clearance is provided between the friction resistance sleeve 9-11 and the nut 9-10. The friction resistance sleeve 9-11 is fixed in the main body 9-2 with screws. The nut 9-10 is tightly attached to the end face of the friction resistance sleeve 9-11 through the spring pressure transmitted by the spring column 9-9.

[0049] Preferably, there is a 1mm gap between the left end of the nut 9-10 and the right end of the pressure regulating seat 9-8 to ensure that the nut 9-10 has room to move when subjected to axial force, a sheath 9-12 located outside the power output shaft 9-3 is provided at the right end of the body 9-2, and a travel limit sleeve 9-13 for adjusting and limiting the extreme position of the power output shaft 9-3 extending to the right end is provided at the left end of the screw rod of the power output shaft 9-3. In this embodiment, the spring pressure transmitted by the spring column 9-9 of the nut 9-10 is tightly attached to the end face of the friction resistance sleeve 9-11, and when there is no external force, it relies on the friction force to keep it stationary. There is a gap of about 1mm between the left end of the nut 9-10 and the right end of the pressure regulating seat 9-8 to ensure that the nut 9-10 has room to move when subjected to axial force. When the power output shaft 9-3 is subjected to the resistance of the target object, its resistance is transmitted to the nut 9-10. At this time, the nut 9-10 overcomes the spring pressure, disengages from the end face contact with the friction resistance sleeve 9-11, releases the friction force and rotates with the power output shaft 9-3, and the axial movement of the power output shaft 9-3 stops. At this time, the power output shaft outputs a constant pressure and torque to the target object. The sleeve 9-12 is installed at the right end of the body 9-2 to guide and center the power output shaft 9-3. The travel limit sleeve 9-13 is installed at the left end of the power output shaft 9-3 screw rod part to adjust and limit the limit position of the power output shaft 9-3 extending to the right end. The pressure adjustment screw 9-6, the compression spring 9-7, and the spring column 9-9 are all installed in the pressure adjustment seat body 9-8. When the spring column 9-7 is subjected to the axial force, it can overcome the spring force and move axially. The left end of the pressure adjustment seat body 9-8 is connected to the plane bearing 9-5 to bear the axial force and can carry out the circumferential rotation movement together.

[0050] In this embodiment, the operation screen 1, scanner 4, USB interface 5 and heat dissipation device 6 are all installed on the housing 2; the operation screen 1 is responsible for the operation and sending of instructions, the setting, display and query of related data; the scanner 4 is responsible for the data identification and scanning of the sample tooth pulverizing box; the USB interface 5 is used to copy data; the heat dissipation window 6 is provided with a filter and a heat dissipation fan to reduce the temperature inside the pulverizer and absorb the dust inside the pulverizer, and the shock-absorbing foot pad 7 is installed under the base plate 8; the main power output mechanism 9 is connected to the stepping reduction mechanism 12; the main power output mechanism 9 is internally configured with a linkage output structure of axial force and torque to ensure that the power output shaft 9-3 can continue to rotate when it encounters excessive axial resistance and cannot feed. There is a hexagonal block 9-14 at the right end of its power output shaft 9-3, which is automatically introduced into the hexagonal positioning slot 10-6 built into the tooth crushing box during operation, driving the grinding head to grind and crush the teeth in a spinning manner; the conveying mechanism 11 is installed at the other end of the main power output mechanism 9; the hatch 3 is elastically connected to the conveying mechanism 11; the tooth crushing box 10 is placed on the conveying platform of the conveying mechanism 11, and the stepping reduction mechanism 12, the main controller 13, the stepping motor controller 14, and the DC power supply 15 are installed above the bottom plate 8, and the top of the bottom plate 8 is connected to the bottom of the shell 2, so that all the mechanisms are enclosed in the shell cavity. A closed cavity is provided in the tooth crushing box 10, and a built-in grinding head is also provided, which is responsible for crushing the teeth and is a disposable consumable. The conveying mechanism 11 is responsible for the entry and exit of the tooth crushing box 10 from the hatch; the main power output mechanism 9 is responsible for providing the pressure and rotational torque required for crushing to the tooth crushing box 10; at the same time, the tooth crushing box is a disposable consumable, and it is placed on the fixed base 11-2 of the conveying mechanism 11 during operation. Grinding heads are provided at both ends of the tooth crushing box, one moving and the other static, and windows are opened on the side to facilitate the placement of teeth and the pouring of tooth powder. The window is provided with a sealing structure to ensure that dust will not leak out when the teeth are crushed.

[0051] A positioning slot is arranged in the fixed base of the conveying device, which can clamp the grinding head at one end of the tooth crushing box in the working state to keep it in a non-rotatable state.

[0052] How the controller described in this embodiment is connected to each device to obtain data and transmit it belongs to conventional technology in the field, so it will not be described in detail.

[0053] The stepping reduction mechanism 12 is composed of a stepping motor with a worm gear reducer with a reduction ratio of 20:1, which is responsible for providing the main power source. The main controller 13 is responsible for controlling the operation of the instrument and receiving and processing various signals and data. It is also equipped with a network interface and an online interface, which can communicate with peripheral equipment or a computer. At the same time, a stepping motor controller 16 is also added to control and optimize the operating parameters of the main power stepping motor. The DC power supply 15 provides the required DC power for the tooth crusher and has grounding protection.

[0054] When the present invention is working: click the "out of the compartment" button on the operation screen 1, the hatch 3 extends out of the hatch together with the placing platform of the conveying mechanism 11; after the identification code on the tooth crushing box 10 containing teeth is scanned by the scanner 4, it is placed on the conveying platform, and the "into the compartment" button on the operation screen 1 is clicked, the tooth crushing box 10 is sent into the instrument cabin, and the flat square of the static grinding head at one end is inserted into the base card slot of the conveying mechanism 11, the hatch cover 3 closes the hatch, and the "start" button on the operation screen 1 is clicked. At this time, the stepping reduction mechanism 12 drives the dynamic grinding head on the crushing box 10 to grind the teeth according to the set program through the main power output mechanism 9. The teeth squeeze, rotate, shear and grind while they are being squeezed, until the teeth are crushed. After the crushing is completed, the dynamic grinding head returns to one end of the crushing box together with the output shaft on the main power output mechanism 9 and is disengaged from the output shaft. The crushing process is completed, and the "out of the warehouse" button on the operation screen 1 is clicked, and the conveying mechanism 11 sends the tooth crushing box 10 out of the cabin. The tooth crushing box 10 is removed, and the sealing cover on its side is opened to pour the tooth powder into a designated test tube or container. Therefore, the above-mentioned structural setting has the advantages of simple overall operation, reduced labor costs, high work efficiency, and a sealing effect during processing to reduce noise in turn, and low cost.

[0055] At the same time, the pulverizing method of the present invention adopts two grinding heads, one moving and one static, and the teeth are placed between them. By applying a certain pressure and rotating the grinding heads, the teeth are twisted, sheared and ground into powder by the combined effect of extrusion force, friction force and shear force; making the whole pulverizing more convenient; at the same time, the pulverizing process is carried out in a closed cavity, which is pollution-free and noise-free. In addition, the present invention adopts a low-speed spinning milling method, which has a small temperature rise and low noise during the pulverizing process, a short pulverizing time, simple operation, and data that can be interconnected and traced; at the same time, it can prevent dust from polluting the environment and avoid cross contamination. Therefore, it has high practical value.

[0056] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tooth crusher, comprising a housing (2) and a bottom plate (8) covering each other, characterized in that: The following equipment is arranged in the chamber formed by the housing (2) and the bottom plate (8): A main controller (13) for controlling the operation of various electrical components and receiving and processing various signals and data; A disposable tooth pulverizing box (10), wherein a sealed chamber (10-6) is provided in the disposable tooth pulverizing box (10), and a movable grinding head (10-3) for grinding and pulverizing teeth is provided in the sealed chamber (10-6); A main power output mechanism (9) having a retractable power output shaft (9-3), wherein the power output shaft (9-3) can be connected to a movable grinding head (10-3) of a disposable tooth crushing box (10) after being extended, and can drive the movable grinding head (10-3) to work; A conveying mechanism (11) for conveying a disposable tooth crushing box (10) to the front of the power output shaft (9-3); A stepping reduction mechanism (12) for connecting to the main power output mechanism (9); A DC power source (15) electrically connected to the stepping reduction mechanism (12), the main power output mechanism (9), and the conveying mechanism (11); Wherein, the main controller (13) is electrically connected to the stepping deceleration mechanism (12) and the conveying mechanism (11); The disposable tooth crushing box (10) comprises a box body (10-1), a fixed grinding head (10-2) and a movable grinding head (10-3), wherein the fixed grinding head (10-2) and the movable grinding head (10-3) are respectively arranged at both ends of the box body (10-1), wherein the fixed grinding head (10-2) and the movable grinding head (10-3) cooperate with the box body (10-1) to form the sealed chamber (10-6) inside the box body (10-1), wherein a sealing groove (10-7) is provided on the fixed grinding head (10-2) and the movable grinding head (10-3), wherein a sealing ring (10-5) is arranged in the sealing groove (10-7), and a window (10-8) for placing a tooth into the sealed chamber (10-6) is provided at the front end of the box body (10-1), wherein a sealing member (10-1) is provided on the window (10-8). 0-4); a boss (10-11) for determining the positioning direction of the fixed grinding head (10-2) is provided on one side of the fixed grinding head (10-2), a hexagonal positioning slot (10-9) is provided on one side of the movable grinding head (10-3), a hexagonal block (9-14) matching the hexagonal positioning slot (10-9) is provided on one end of the power output shaft (9-3), and protruding sharp teeth (10-10) located in the sealed chamber (10-6) are provided on the other side of the movable grinding head (10-3) and the other side of the fixed grinding head (10-2), and the movable grinding head (10-3) can reciprocate and rotate in the box body (10-1), so that the protruding sharp teeth (10-10) on the movable grinding head (10-3) and the protruding sharp teeth (10-10) on the fixed grinding head (10-2) are meshed with each other.

2. A tooth crushing device according to claim 1, characterized in that: An operation screen (1) for sending instructions, setting, displaying and querying relevant data and a scanner (4) for identifying and scanning the data of the sample tooth pulverizing box are provided at the front end of the housing (2). A heat dissipation device (6) for reducing the temperature in the pulverizer and absorbing dust in the pulverizer and a USB interface (5) for copying data are provided on the side of the housing (2). The operation screen (1), the USB interface (5) and the scanner (4) are electrically connected to a main controller (13). An inlet and outlet hatch (2-1) is provided at the front end of the housing (2), and a hatch cover (3) for closing the inlet and outlet hatch (2-1) is elastically connected to the conveying mechanism (11).

3. A tooth crushing device according to claim 2, characterized in that: A shock-absorbing foot pad (7) is provided below the bottom plate (8).

4. A tooth crushing device according to claim 2, characterized in that: The scanner (4) is installed in a scanning window at the upper right corner of the front end of the housing (2), and the USB interface (5) is installed on the front right side of the housing (2).

5. A tooth crushing device according to claim 3, characterized in that: The shock-absorbing foot pads (7) are installed at the four corner ends below the bottom plate (8), with a total of four.

6. A tooth crushing device according to claim 1, characterized in that: The conveying mechanism (11) is installed at the right end of the main power output mechanism (9). The conveying mechanism (11) comprises a screw stepper motor (14), a linear guide rail (11-1), a fixed base (11-2) and a conveying platform (11-5). The output of the screw stepper motor (14) is connected to a screw (14-1), and a screw slider (14-2) is provided on the screw (14-1). The conveying platform (11-5) is connected to a linear guide bar (11-6) slidably connected to the linear guide rail (11-1). The other end of the linear guide bar (11-6) passes through the fixed base (11- 2) is connected to the screw slider (14-2), the screw stepping motor (14) is fixed to the side of the fixed base (11-2), the box body (10-1) is clamped in the fixed base (11-2) through the boss (10-11), a positioning pin (11-3) for locating the position of the tooth crushing box is provided in the conveying platform (11-5), and a positioning slot (11-4) is provided on the side of the fixed base (11-2) for cooperating with the boss (10-11) to clamp the fixed grinding head (10-2) in the working state so that the fixed grinding head (10-2) remains in a non-rotatable state.

7. A tooth crushing device according to claim 1, characterized in that: The active power output mechanism (9) comprises a mounting connection plate (9-1) and a body (9-2) which cooperate with each other. The power output shaft (9-3) passes through the mounting connection plate (9-1) and the body (9-2). The mounting connection plate (9-1) is mounted on a stepping reduction mechanism (12). A transition shaft (9-4) is arranged on the left side of the power output shaft (9-3) and is inserted into the output main shaft of the stepping reduction mechanism (12) and transmits power through a key connection. The power output shaft (9-3) and the transition shaft (9-4) can slide axially and transmit torque. A plane bearing (9-5) is arranged in the mounting connection plate (9-1). A pressure adjustment seat (9-8) located in the body (9-2) is arranged on the right side of the plane bearing (9-5). The pressure adjustment seat (9-8) is arranged on the right side of the plane bearing (9-5). The seat body (9-8) is used to bear axial force and can rotate in the circumferential direction together with the plane bearing (9-5). A pressure adjustment screw (9-6), a compression spring (9-7), and a spring column (9-9) are installed in the pressure adjustment seat body (9-8) from left to right. The middle part of the power output shaft (9-3) is a screw rod structure and is connected to a nut (9-10). The nut (9-10) is inserted into a friction resistance sleeve (9-11). A radial matching clearance is provided between the friction resistance sleeve (9-11) and the nut (9-10). The friction resistance sleeve (9-11) is fixed in the body (9-2) by screws. The nut (9-10) is tightly attached to the end surface of the friction resistance sleeve (9-11) through the spring pressure transmitted by the spring column (9-9).

8. A tooth crushing device according to claim 7, characterized in that: A gap of 1 mm is provided between the left end of the nut (9-10) and the right end of the pressure regulating seat body (9-8) to ensure that the nut (9-10) has room to move when subjected to an axial force. A protective sleeve (9-12) located outside the power output shaft (9-3) is provided at the right end of the body (9-2), and a travel limit sleeve (9-13) is provided at the left end of the screw rod portion of the power output shaft (9-3) for adjusting and limiting the extreme position of the power output shaft (9-3) extending to the right end.

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