Denture engraving machine

Abstract

The utility model relates to the technical field of denture processing, and provides a denture engraving machine, wherein the dustproof device comprises a limit fixing plate and a limit shielding plate installed on a cutting chamber, wherein the limit fixing plate is provided with a processing window, the limit shielding plate is provided with a through-hole, and the limit shielding plate is movable relative to the limit fixing plate; a cutting shaft, which extends from the processing window into the cutting chamber after passing through the through-hole; and a motor, which is electrically connected to the cutting shaft; wherein the cutting shaft is driven by the motor to move within the range of the processing window to process materials, and the limit shielding plate moves relative to the limit fixing plate under the drive of the cutting shaft, and the limit shielding plate always covers all ranges of the processing window except the area of ​​the cutting shaft projected on the processing window to seal the cutting chamber. The utility model is not limited by the maximum compression amount of the accordion cover, and by setting the limit shielding plate, the mobility requirements of the denture engraving machine in the process of processing materials are improved, and the dustproof effect of the engraving machine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial teeth processing, in particular to an artificial teeth carving machine. Background Art

[0002] At present, the application of denture engraving machines in the dental field is becoming more and more widespread, and their processing accuracy and efficiency are crucial to the quality of dentures. However, existing denture engraving machines have obvious deficiencies in dust protection. Under high-intensity use, their dust protection structure often cannot effectively isolate the leakage of dust in the cutting chamber, causing the precision parts inside the equipment to be exposed to the dust environment for a long time. This not only affects the processing accuracy of dentures, but may also cause equipment performance degradation and even cause failures.

[0003] In order to solve the above problems, the current engraving machine uses an accordion cover solution to prevent dust from entering the cutting chamber of the engraving machine. However, although the accordion cover solution has a dust-proof effect to a certain extent, it has a short motion stroke, which is limited by the maximum compression amount and leads to a limited range of motion. It cannot meet the mobility requirements of the denture engraving machine during complex processing. This limits the processing capacity and dust-proof effect of the engraving machine's cutting equipment to a certain extent. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a denture engraving machine with better dustproof effect.

[0005] In order to solve the above problems, the utility model provides the following technical solutions:

[0006] A denture engraving machine, comprising:

[0007] A cutting chamber, used to load materials to be processed;

[0008] The dustproof device comprises a limit fixing plate and a limit shielding plate installed on the cutting chamber, wherein the limit fixing plate is provided with a processing window, the limit shielding plate is provided with a through opening, and the limit shielding plate is movable relative to the limit fixing plate;

[0009] A cutting shaft, which passes through the through opening and then extends from the processing window into the cutting chamber;

[0010] A motor electrically connected to the cutting shaft;

[0011] In which, the cutting shaft is driven by the motor to move within the range of the processing window to process the material, and the limiting shielding plate moves relative to the limiting fixing plate under the drive of the cutting shaft, and the limiting shielding plate always covers all areas of the processing window except the area where the cutting shaft is projected on the processing window to seal the cutting chamber.

[0012] In one embodiment, the limiting shielding plate includes an outermost shielding plate away from the limiting fixing plate and an intermediate shielding plate located between the outermost shielding plate and the limiting fixing plate, and the outermost shielding plate, the intermediate shielding plate and the limiting fixing plate are stacked on each other.

[0013] In one embodiment, the through opening provided on the outermost shielding plate is interference-fitted with the cutting shaft to form a sealing effect, and the area of ​​the through opening provided on the middle shielding plate is adapted to the working motion trajectory of the cutting shaft.

[0014] In one embodiment, the number of the intermediate shielding plate is at least one.

[0015] In one embodiment, at least two intermediate shielding plates are provided, and the length of the through openings provided in the intermediate shielding plates along the axial movement of the cutting shaft decreases gradually in a direction away from the limiting fixing plate.

[0016] In one embodiment, the length of each of the through openings is inversely proportional to the movable stroke of the corresponding intermediate shielding plate relative to the limiting fixing plate.

[0017] In one embodiment, the dustproof device further includes a sealing ring, and the sealing ring is located between any two adjacent intermediate shielding plates, or the sealing ring is located between the limiting fixing plate and the intermediate shielding plate.

[0018] In one embodiment, the limiting fixing plate and the limiting shielding plate are both provided with installation grooves, the installation grooves are arranged on the limiting fixing plate on the peripheral side of the processing window, the installation grooves are arranged on the limiting shielding plate on the peripheral side of the through-opening, and the sealing ring is installed in the installation grooves.

[0019] In one embodiment, the dustproof device also includes a dustproof pressure cover and a sleeve, the dustproof pressure cover is installed in the installation groove of the limiting shielding plate and abuts against the sealing ring, and the sleeve passes through the through opening and the processing window and is assembled and connected with the dustproof pressure cover.

[0020] In one embodiment, the denture engraving machine further includes a slide rail, and one side of the position limiting shielding plate is connected to the slide rail so that the position limiting shielding plate can slide on the slide rail.

[0021] The cutting shaft is driven by a motor to move within the range of the processing window to process materials. The limit shielding plate moves relative to the limit fixing plate under the drive of the cutting shaft and the limit shielding plate always covers all areas of the processing window except the area where the cutting shaft is projected on the processing window to seal the cutting chamber.

[0022] The beneficial effect of the utility model is that the cutting shaft is driven by the motor to move within the range of the processing window to process the material by setting the limit shielding plate, the limit shielding plate moves relative to the limit fixing plate under the drive of the cutting shaft, and the limit shielding plate always covers all the ranges of the processing window except the area where the cutting shaft is projected on the processing window to seal the cutting chamber. The utility model is not limited by the maximum compression amount of the accordion cover, and by setting the limit shielding plate, the mobility requirements of the denture engraving machine in the process of processing materials are improved, and the dustproof effect of the engraving machine is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of one embodiment of a denture engraving machine of the utility model;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure of one embodiment of the dust prevention device;

[0025] Figure 3 for Figure 1 A schematic diagram of the movement of one embodiment of the dust prevention device;

[0026] Figure 4 for Figure 1 An exploded view of one embodiment of the dust prevention device;

[0027] Figure 5 for Figure 1 A cross-sectional view of one embodiment of the dust prevention device.

[0028] Reference numerals:

[0029] 100, denture engraving machine; 110, cutting chamber; 200, material; 120, dustproof device; 121, limit fixing plate; 122, limit shielding plate; 131, outermost shielding plate; 132, middle shielding plate; 12a, processing window; 130, cutting shaft; 140, motor; 12b, through-hole; 123, sealing ring; 12c, mounting groove; 124, dustproof pressure cover; 125, sleeve; 111, slide rail. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] Although the existing denture engraving machine is equipped with a dust protection structure in the cutting chamber, it fails to achieve the expected dust prevention effect under the premise of high-intensity use, so that other precision parts inside the equipment are exposed to the dust environment, which in turn affects the processing accuracy of the denture. At present, the engraving machine uses an accordion cover solution to prevent dust from the cutting chamber of the engraving machine. However, although the accordion cover solution has played a dust prevention role to a certain extent, it has a problem of short movement stroke, which is limited by the maximum compression amount, resulting in a limited range of motion, and cannot meet the mobility requirements of the denture engraving machine in complex processing. This limits the processing capacity and dust prevention effect of the cutting equipment of the engraving machine to a certain extent. Based on this, this solution provides the following engraving machine implementation examples to solve the above problems in a targeted manner.

[0033] Please refer to Figure 1-5As shown, the present embodiment provides a denture engraving machine 100, which includes a cutting chamber 110, a motor 140, a dustproof device 120 and a cutting shaft 130; wherein the cutting chamber 110 is used to load a material 200 to be processed. It is understandable that the material 200 is a round pancake structure before being processed. By placing the initial material 200 into the cutting chamber 110, the cutting shaft 130 is extended into the cutting chamber 110 to process it, thereby forming a denture model; further, the dustproof device 120 includes a limit fixing plate 121 and a limit shielding plate 122 installed on the cutting chamber 110, and the limit shielding plate 122 is relative to the limit fixing plate 121. 1 is movable, and a processing window 12a is provided on the limiting fixing plate 121, and a through hole 12b is provided on the limiting shielding plate 122. After the cutting shaft 130 passes through the through hole 12b of the limiting shielding plate 122, it extends into the cutting chamber 110 from the processing window 12a, and is driven by the motor 140 to move within the range of the processing window 12a to process the material 200. The limiting shielding plate 122 moves relative to the limiting fixing plate 121 under the drive of the cutting shaft 130, and the limiting shielding plate 122 always covers all areas of the processing window 12a except the area where the cutting shaft 130 is projected on the processing window 12a to seal the cutting chamber 110. It can be understood that the end of the cutting shaft 130 is provided with a blade for cutting the material 200, and in other embodiments the blade can be replaced by a grinding disc. This structure is to process the material 200 loaded in the cutting chamber 110 into a denture model, and another motor 140 is also provided in the cutting shaft 130 in this embodiment, which controls the rotation of the blade at the end of the cutting shaft 130 to achieve cutting and grinding of the material. The main purpose of this embodiment is to prevent the dust generated during the cutting process of the material 200 from flying out of the cutting chamber 110. The motor 140 controlling the rotation of the blade of the cutting shaft 130 is not described in detail here. The main description is about the movement of the cutting shaft 130 in the cutting chamber 110 driven by the motor 140, and how the dust prevention device 120 prevents dust from flying out when the cutting shaft 130 moves. It can be understood that in the process of the motor 140 driving the cutting shaft 130 to move within the range of the processing window 12a to process the material 200, the blocking range of the limiting shielding plate 122 always covers the processing window 12a.It can be understood that when the cutting shaft 130 moves in the horizontal direction to process the material 200, the projection of the cutting shaft 130 on the processing window 12a will change due to the movement of the cutting shaft 130, and the limiting shielding plate 122 is driven by the cutting shaft 130 to move relative to the limiting fixing plate 121, so that the part of the processing window 12a that does not overlap with the projection of the cutting shaft 130 will be exposed to the outside, and the limiting shielding plate 122 is provided to cover the processing window 12a, so that the part of the processing window 12a exposed to the outside is covered, and no matter how the cutting shaft 130 moves, as long as it is within the range of the processing window 12a The limiting shielding plate 122 can always cover all the ranges on the processing window 12a except the area of ​​the projection position of the cutting axis 130, that is, when the cutting axis 130 is displaced within the range of the processing window 12a, the limiting shielding plate 122 will make way for a new area for the movement of the cutting axis 130 as the cutting axis 130 moves, and completely cover the remaining area of ​​the processing window 12a and the original projection area of ​​the cutting axis 130 on the processing window 12a. In addition, the utility model is not limited by the maximum compression amount of the accordion cover. By setting the limiting shielding plate 122, the mobility requirement of the denture engraving machine 100 in the process of processing the material 200 is improved, and the dustproof effect of the engraving machine is improved.

[0034] It can be understood that the material in this embodiment is the material used to make the denture model, and the material is made of zirconium oxide material commonly used in making dentures. Figure 1 This is a schematic diagram of the dust prevention function. The black particles simulate zirconia dust. During cutting, the dust floats in the processing chamber and performs irregular Brownian motion. Furthermore, during the movement of the equipment, the dust prevention device 120 can always keep the dust in the processing chamber and will not overflow and fall on other external parts, thereby ensuring the equipment operation stability and cutting accuracy.

[0035] Please refer to Figure 2-5As shown, according to the above scheme, specifically, the limiting shielding plate 122 includes an outermost shielding plate 131 away from the limiting fixing plate and an intermediate shielding plate 132 located between the outermost shielding plate 131 and the limiting fixing plate 121, at least one intermediate shielding plate 132 is provided, and the outermost shielding plate 131, the intermediate shielding plate 132 and the limiting fixing plate 121 are mutually stacked; it can be understood that if the limiting shielding plate 122 is provided with only one outermost shielding plate 131, the covering of the processing window 12a can also be achieved, but in the case of one outermost shielding plate 131, the portion of the outermost shielding plate 131 used to cover the processing window 12a may be designed to be too long, and in this embodiment may exceed the side of the cutting chamber 110; Therefore, by setting two plates of the outermost shielding plate 131 and the middle shielding plate 132, the length of the outermost shielding plate 131 can be effectively shortened when there is one outermost shielding plate 131; it can be understood that in another case, the middle shielding plate 132 is set to be at least two, and the present embodiment can choose to set two middle shielding plates 132, and the two middle shielding plates 132 are stacked in sequence, and the cutting shaft 130 passes through the through-holes 12b on the two middle shielding plates 132 in sequence from the upper end, and then extends into the cutting chamber 110 from the processing window 12a, and the through-hole 12b set on the outermost shielding plate 131 is interference fit with the cutting shaft 130 to form a sealing effect, and the sealing effect makes the outermost shielding plate 131 and the cutting shaft 130 seal with each other as the outermost shielding plate 131 is sealed with each other. During the movement of the cutting shaft 130, the movement frequency of the cutting shaft 130 is consistent, and the area of ​​the through hole 12b set in the middle shielding plate 132 adapts to the working movement trajectory of the cutting shaft 130, and the length of each through hole 12b is inversely proportional to the movable stroke of the corresponding middle shielding plate 132 relative to the limiting fixing plate 121; it can be understood that in this embodiment, the length of the through hole 12b set in the middle shielding plate 132 along the axial movement of the cutting shaft 130 decreases successively in the direction away from the limiting fixing plate 121. This structure is that: when the cutting shaft 130 is driven by the motor 140 to move, the outermost shielding plate 131 moves accordingly due to the interference fit between the through hole 12b and the cutting shaft 130, and the adjacent The middle baffle plate 132 may contact the corresponding through-hole 12b as the cutting shaft 130 moves, thereby being driven to move. When the cutting shaft 130 continues to move in the same direction, another middle baffle plate 132 may also be contacted by the cutting shaft 130 to the corresponding through-hole 12b, thereby being driven to move. In another case, since the cutting shaft 130 may only move in a small range when locally processing the material 200 due to the small movement amplitude, the cutting shaft 130 may only move in a small range, thereby only driving the outermost baffle plate 131 to move. In this case, the lower middle baffle plate 132 will not be contacted by the cutting shaft 130 to the corresponding through-hole 12b, thereby completing the dust prevention function without moving.Therefore, no matter the movement amplitude and range of the cutting shaft 130, as long as it is within the range of the processing window 12a, the limiting shielding plate 122 can cover the part of the processing window 12a exposed to the outside, thereby further realizing mobility and dust prevention.

[0036] Please refer to Figure 4-5 As shown, preferably, the dustproof device 120 also includes a sealing ring 123, and the sealing ring 123 is located between two adjacent intermediate shielding plates 132, or the sealing ring 123 is located between the limiting fixing plate 121 and the intermediate shielding plate 132; specifically, in this embodiment, the limiting fixing plate 121 and the limiting shielding plate 122 are both provided with a mounting groove 12c, and the mounting groove 12c is used to install the sealing ring 123, and the mounting groove 12c is arranged on the peripheral side of the processing window 12a on the limiting fixing plate 121, and the mounting groove 12c is arranged on the peripheral side of the through-opening 12b on the limiting shielding plate 122, and the sealing ring 123 is installed in the mounting groove 12c, thereby realizing the intermediate shielding plate 132 and the limiting fixing plate The gap between the plates 121, or between two adjacent intermediate shielding plates 132 is sealed to prevent dust from flying out from the intermediate shielding plate 132 and the gap between the limiting fixing plate 121 or the intermediate shielding plate 132; optionally, the sealing ring 123 in this embodiment is made of wool felt, which is easy to clean dust and has good sealing performance, and can also reduce the noise generated when the slide plates slide; in addition, the depth of the mounting groove 12c is less than the thickness of the sealing ring 123. The purpose of this structure is to enable the limiting fixing plate 121 and the limiting shielding plate 122 to squeeze the sealing ring 123 when they are stacked together, thereby achieving sealing between different handlebar layers and further improving the sealing effect.

[0037] Please refer to Figure 2-5 As shown, preferably, the dustproof device 120 also includes a dustproof pressure cover 124, which is installed in the installation groove 12c of the limiting shielding plate 122 and abuts against the sealing ring 123. Optionally, in this embodiment, the dustproof pressure cover 124 is arranged on the outermost shielding plate 131. This structure is to fix the sealing ring 123 in the installation groove 12c on the outermost shielding plate 131, thereby preventing the sealing ring 123 from popping out of the installation groove 12c due to the lack of a limiting surface at the upper end; and the dustproof device 120 also includes a dustproof pressure cover 124, which is installed in the installation groove 12c of the limiting shielding plate 122 and abuts against the sealing ring 123. The device 120 also includes a sleeve 125, which passes through the through-port 12b and the processing window 12a and is assembled and connected to the dustproof pressure cover 124; it can be understood that the sleeve 125 is used to limit the cutting shaft 130 passing through the through-port 12b, so that the cutting shaft 130 passes through the sleeve 125 and passes through multiple through-ports 12b in sequence, and then passes through the processing window 12a into the cutting chamber 110, which plays a limiting role and also helps the cutting shaft 130 to drive the movement of different limiting plates.

[0038] Preferably, the denture engraving machine 100 also includes a slide rail 111. It can be understood that the limiting shielding plate 122 and the limiting fixed plate 121 are connected by arranging a slider on the slide rail 111, so that one side of the limiting shielding plate 122 is connected to the slide rail 111, so that the limiting shielding plate 122 (the outermost shielding plate 131 and the middle shielding plate 132) can slide on the slide rail 111 relative to the limiting fixed plate 121.

[0039] Optionally, compared to the accordion cover solution used in the existing solution, which is made of plastic material and has the disadvantages of being less durable and easily deformed and aged, the limiting fixing plate and the limiting shielding plate in this embodiment are made of hard metal material with a hard corrosion-resistant coating to improve durability and stability.

[0040] In summary, the utility model provides a denture engraving machine, which is provided with a limit shielding plate so that the cutting shaft is driven by a motor to move within the range of the processing window to process the material. The limit shielding plate moves relative to the limit fixing plate under the drive of the cutting shaft, and the limit shielding plate always covers all areas of the processing window except the area where the cutting shaft is projected on the processing window to seal the cutting chamber. The utility model is not limited by the maximum compression amount of the accordion cover. By providing the limit shielding plate, the mobility requirements of the denture engraving machine in the process of processing materials are improved, and the dustproof effect of the engraving machine is improved.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A denture engraving machine, characterized in that: include: A cutting chamber, used to load materials to be processed; The dustproof device comprises a limit fixing plate and a limit shielding plate installed on the cutting chamber, wherein the limit fixing plate is provided with a processing window, the limit shielding plate is provided with a through opening, and the limit shielding plate is movable relative to the limit fixing plate; A cutting shaft, which passes through the through opening and then extends from the processing window into the cutting chamber; A motor electrically connected to the cutting shaft; In which, the cutting shaft is driven by the motor to move within the range of the processing window to process the material, and the limiting shielding plate moves relative to the limiting fixing plate under the drive of the cutting shaft, and the limiting shielding plate always covers all areas of the processing window except the area where the cutting shaft is projected on the processing window to seal the cutting chamber.

2. A denture engraving machine according to claim 1, characterized in that: The position-limiting shielding plate comprises an outermost shielding plate away from the position-limiting fixing plate and an intermediate shielding plate located between the outermost shielding plate and the position-limiting fixing plate. The outermost shielding plate, the intermediate shielding plate and the position-limiting fixing plate are stacked on each other.

3. A denture engraving machine according to claim 2, characterized in that: The through opening arranged on the outermost shielding plate is interference-fitted with the cutting shaft to form a sealing effect, and the area of ​​the through opening arranged on the middle shielding plate is adapted to the working motion trajectory of the cutting shaft.

4. The denture engraving machine according to claim 2, characterized in that: The number of the intermediate shielding plates is at least one.

5. The denture engraving machine according to claim 2, characterized in that: The number of intermediate shielding plates is at least two, and the length of the through openings provided on the intermediate shielding plates along the axial movement of the cutting shaft decreases gradually in a direction away from the limiting fixing plate.

6. The denture engraving machine according to claim 5, characterized in that: The length of each through opening is inversely proportional to the movable stroke of the corresponding intermediate shielding plate relative to the limiting fixing plate.

7. The denture engraving machine according to claim 2, characterized in that: The dustproof device further comprises a sealing ring, and the sealing ring is located between any two adjacent intermediate shielding plates, or the sealing ring is located between the limiting fixing plate and the intermediate shielding plate.

8. The denture engraving machine according to claim 7, characterized in that: The limit fixing plate and the limit shielding plate are both provided with mounting grooves, the mounting grooves are arranged on the surrounding side of the processing window on the limit fixing plate, the mounting grooves are arranged on the surrounding side of the through opening on the limit shielding plate, and the sealing ring is installed in the mounting grooves.

9. The denture engraving machine according to claim 8, characterized in that: The dustproof device also includes a dustproof pressure cover and a sleeve. The dustproof pressure cover is installed in the installation groove of the limiting shielding plate and abuts against the sealing ring. The sleeve passes through the through opening and the processing window and is assembled and connected with the dustproof pressure cover.

10. The denture engraving machine according to claim 1, characterized in that: The denture engraving machine also includes a slide rail, and one side of the position limiting shielding plate is connected to the slide rail so that the position limiting shielding plate can slide on the slide rail.

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