CN109394369B

CN109394369B - Post-processing apparatus and method for 3D printing resin denture

Info

Publication number: CN109394369B
Application number: CN201811194655.1A
Authority: CN
Inventors: 张军; 刘睿诚; 吴利苹; 周小锋; 邓先科
Original assignee: Chengdu Dengte Dental Technology Development Co ltd
Current assignee: Chengdu Dengte Dental Technology Development Co ltd
Priority date: 2018-10-15
Filing date: 2018-10-15
Publication date: 2020-10-23
Anticipated expiration: 2038-10-15
Also published as: CN109394369A

Abstract

The invention belongs to the field of dental additive manufacturing, and discloses post-processing equipment and a post-processing method for a 3D printed resin denture. The post-processing equipment arranges all working bins for post-processing of the 3D printed resin false tooth, and parts are sequentially moved to all the working bins through the movable guide rail and the lifting mechanism, so that the continuity and the processing efficiency of the post-processing are improved, and the automatic control is easy to realize; the corresponding parts placing area in the baking bin is provided with an independent baking area respectively, so that the size of the false tooth in the parts placing area and the number of the false teeth supported by the false tooth can be controlled independently, and the problem of deformation of part of the parts due to excessive baking is prevented.

Description

Post-processing apparatus and method for 3D printing resin denture

Technical Field

The invention belongs to the field of dental additive manufacturing, and particularly relates to equipment and a method for post-processing a 3D printed resin denture, which are used for removing the support of a denture prosthesis and completing cleaning.

Background

As dental processing enters the digital era, more and more dental processing enterprises begin to adopt the digital processing mode to replace the traditional manual operation. The additive manufacturing is also called 3D printing, can mold parts with complex shapes, has high molding precision, saves materials, has the cost advantage of molding complex articles, can perform personalized customization service, simplifies the production flow, is energy-saving and environment-friendly in the production process, and becomes a mainstream processing method in the dental processing industry.

The Stereolithography (SLA) can mold resin false teeth with complex shapes, is widely applied to processing restorations such as dental wax patterns, resin models, guide plates and the like, has high molding precision and high efficiency, and saves the manual wax pattern making process. Because the false tooth is complex in shape, in order to ensure smooth light-cured forming, a wax pattern support needs to be added to the false tooth. After the forming is finished, the wax-type support of the resin denture needs to be completely removed, and the resin denture can be used in the next step.

The current resin denture post-treatment has the following problems:

1. the post-treatment of the resin false tooth comprises a plurality of steps of baking, cleaning, airing and the like, different independent devices are required, the number of procedures is large, the personnel is required to be on duty, the cleaning process cannot be continuous, and the labor and the time are consumed.

2. Baking time and temperature are uniform, but denture sizes and supports vary in size. This may result in some of the struts having melted, but some not yet completely melted. If the resin denture is heated and baked all the time, part of the resin denture is deformed due to uneven heating.

Disclosure of Invention

The invention aims to provide post-processing equipment and a post-processing method for 3D printing of resin dentures, which realize continuous post-processing procedures and independently bake the resin dentures with different sizes to prevent the resin dentures from deforming.

The invention discloses post-processing equipment for 3D printing of resin false teeth, which comprises a part placing frame, a lifting mechanism, a movable guide rail, a baking bin, a cleaning bin and an air-drying cooling bin, wherein the baking bin, the cleaning bin and the air-drying cooling bin are sequentially arranged;

the baking bin comprises at least two independent baking areas, each independent baking area is provided with a heating element, and the part placing frame is provided with a part placing area corresponding to each independent baking area.

Preferably, be provided with vertical baffle in the storehouse of toasting, vertical baffle will toast the storehouse and separate for at least two independently toast the district, the part rack has the clearance that can hold vertical baffle between the adjacent cylinder mould including at least two sets of and independent toast district assorted cylinder mould, cylinder mould inner space forms the district is placed to the part.

Preferably, at least one layer of transverse layering piece is arranged in the net cage, and the transverse layering piece divides the net cage into a multi-layer structure.

Preferably, the heating elements are arranged along the vertical partition and the side wall of the roasting bin.

Preferably, the transverse layered part is an inclined clapboard, and the included angle between the inclined clapboard and the horizontal plane is 5-20 degrees.

Preferably, a hollow net is arranged on the periphery of the part placing rack, a transverse partition plate is arranged in the part placing rack, the transverse partition plate divides the part placing rack into at least two layers of part placing areas, and the heating elements are arranged on the side face of the baking bin corresponding to the part placing areas;

when the part placing rack is positioned in the baking bin, the baking bin is divided into at least two independent baking areas by the transverse partition plate.

Preferably, the transverse partition plates are obliquely arranged and form an included angle of 5-20 degrees with the horizontal plane,

when the part placing rack is positioned in the baking bin, a gap is formed between the lower end of the transverse partition plate and the inner wall of the baking bin.

Preferably, the transverse partition plate comprises a plurality of rotating strips, the two ends of each rotating strip are rotatably connected with the part placing rack through rotating shafts, rotating wheels are arranged on the rotating shafts, the rotating wheels of the rotating strips are hinged to connecting rods and are in transmission connection through the connecting rods, at least one rotating wheel positioned on the side is a gear, and vertical racks are arranged in the cleaning bin and the air drying cooling bin corresponding to the gears.

Preferably, a return spring is connected between the connecting rod and the part placing frame.

Preferably, the bottom of the roasting bin is provided with a wax recovery disc.

Preferably, the cleaning bin comprises a solvent dissolving bin, a detergent cleaning bin and a purified water cleaning bin which are arranged in sequence.

Preferably, the solvent dissolving bin, the detergent cleaning bin and the purified water cleaning bin are respectively provided with a heating element, an ultrasonic generator is arranged in the solvent dissolving bin, and a cyclone is arranged in the detergent cleaning bin and the purified water cleaning bin.

Preferably, the openings of the baking bin and the cleaning bin are consistent in shape and size, a cover plate is arranged at the top of the part placing frame, and the shape and size of the cover plate are matched with the opening of the baking bin.

The invention discloses a post-processing method of a 3D printing resin denture, which adopts the post-processing equipment of the 3D printing resin denture and comprises the following steps:

baking to melt the supporting wax: respectively placing each part of the printed resin false tooth into each part placing area of the part placing frame according to the size, moving the part placing frame to the upper part of a baking bin along a moving track, then placing the part placing frame into the baking bin through a lifting mechanism, melting supporting wax of the part through baking, respectively placing the part in each part placing area in each independent baking area, respectively controlling the baking temperature or the heat preservation time of each independent baking area according to the size of the resin false tooth, and lifting the part placing frame through a lifting structure after baking;

cleaning parts: moving the part placing frame to the position above the cleaning bin along the moving track, placing the part placing frame into the cleaning bin through a lifting mechanism, cleaning the parts, and lifting the part placing frame through the lifting mechanism after cleaning is finished;

air-drying and cooling the parts: the part placing frame is moved to the upper portion of the air-drying cooling bin along the moving track, the part placing frame is placed into the air-drying cooling bin through the lifting mechanism, the parts are subjected to air-drying cooling, after the air-drying cooling is completed, the part placing frame is lifted through the lifting structure, the post-processing of the resin false tooth is completed, and the parts are taken out.

Preferably, the part placing rack comprises 3 part placing areas, wherein the 3 part placing areas are used for placing large-sized parts, medium-sized parts and small-sized parts respectively, and the baking bin is correspondingly provided with 3 independent baking areas;

when the support wax is roasted and melted, the temperature of the 3 independent roasting areas is set to be 60-65 ℃, the heat preservation time of the independent roasting area for placing the large-sized parts is 15-18 minutes, the heat preservation time of the independent roasting area for placing the medium-sized parts is 10-13 minutes, and the heat preservation time of the independent roasting area for placing the small-sized parts is 5-8 minutes.

Preferably, the cleaning bin comprises a solvent dissolving bin, a detergent cleaning bin and a purified water cleaning bin which are sequentially arranged, and the parts in the part placing rack sequentially enter the solvent dissolving bin, the detergent cleaning bin and the purified water cleaning bin to be subjected to organic solvent dissolving, detergent cleaning and purified water cleaning;

dissolving an organic solvent: the solvent dissolving bin is filled with an organic solvent for dissolving the support wax and is provided with an ultrasonic generator, the temperature of the organic solvent is 50-55 ℃, the ultrasonic frequency is 100-130KHz, and the cleaning time is 5-8 minutes;

cleaning with a detergent: the detergent cleaning bin is filled with detergent and provided with a swirler, the cleaning efficiency is improved by stirring the detergent through the swirler, the temperature of the detergent is 40-45 ℃, and the cleaning time is 5-8 min;

cleaning with purified water: the purified water cleaning bin is filled with deionized purified water and provided with a swirler, the purified water is stirred by the swirler to improve the cleaning efficiency, the temperature of the detergent is 40-45 ℃, and the cleaning time is 5-8 min.

Preferably, a cooling fan is arranged in the air-drying cooling bin, when the parts are air-dried and cooled, the cooling fan accelerates cooling and air-drying, and the air-drying cooling time is 5-8 minutes.

The invention has the beneficial effects that: the post-processing equipment arranges all working bins for post-processing of the 3D printed resin false tooth, and parts are sequentially moved to all the working bins through the movable guide rail and the lifting mechanism, so that the continuity and the processing efficiency of the post-processing are improved, and the automatic control is easy to realize; the corresponding parts placing area in the baking bin is provided with an independent baking area respectively, so that the size of the false tooth in the parts placing area and the number of the false teeth supported by the false tooth can be controlled independently, and the problem of deformation of part of the parts due to excessive baking is prevented.

Drawings

FIG. 1 is an overall schematic view of the present invention;

FIG. 2 is a schematic view of one embodiment of an independent bake zone;

FIG. 3 is a schematic view of another embodiment of an independent bake zone;

FIG. 4 is a schematic view of the rotating slats in a split state;

fig. 5 is a schematic view of the rotating slat in an open state.

Reference numerals: the part cleaning device comprises a part placing rack 1, a cover plate 11, a hollow net 12, a transverse partition plate 13, a net cage 14, an inclined partition plate 15, a lifting mechanism 2, a moving guide rail 3, a baking bin 4, an independent baking area 41, a heating element 42, a vertical partition plate 43, a wax recovery disc 44, a solvent dissolving bin 5, an ultrasonic generator 51, a detergent cleaning bin 6, a cyclone 61, a purified water cleaning bin 7, an air-drying cooling bin 8, a cooling fan 81, a rotating ribbon board 9, a rotating wheel 91, a gear 92, a connecting rod 93, a rack 94, a reset spring 95 and a rotating shaft 96.

Detailed Description

The present invention is further described below.

The invention discloses post-processing equipment for 3D printing of resin false teeth, which comprises a part placing frame 1, a lifting mechanism 2, a movable guide rail 3, a baking bin 4, a cleaning bin and an air-drying cooling bin 8 which are sequentially arranged, wherein the movable guide rail 3 is arranged along the arrangement direction of the baking bin 4, the cleaning bin and the air-drying cooling bin 8, and the part placing frame 1 is arranged on the movable guide rail 3 through the lifting mechanism 2;

toast the storehouse 4 and include two at least independent toasting the district 41, each independent toasting the district 41 and being provided with heating element 42 respectively, part rack 1 corresponds each independent toasting district 41 and is provided with the part respectively and places the district.

The post-processing method for 3D printing of the resin denture by adopting the equipment comprises the following steps:

baking to melt the supporting wax: placing each part of the printed resin false tooth into each part placing area of the part placing frame 1 according to the size, moving the part placing frame 1 to the upper part of the baking bin 4 along the moving track, then placing the part placing frame 1 into the baking bin 4 through the lifting mechanism 2, respectively positioning the part in each part placing area in each independent baking area 41 through baking and melting the supporting wax of the part, respectively controlling the baking temperature or the heat preservation time of each independent baking area 41 according to the size of the resin false tooth, and lifting the part placing frame 1 through the lifting structure after baking is completed;

cleaning parts: moving the part placing frame 1 to the upper part of a cleaning bin along a moving track, placing the part placing frame 1 into the cleaning bin through a lifting mechanism 2, cleaning the parts, and lifting the part placing frame 1 through a lifting structure after cleaning is finished;

air-drying and cooling the parts: move part rack 1 to air-dry cooling bin 8 top along moving the track, put into air-dry cooling bin 8 with part rack 1 through elevating system 2 in, carry out the air-dry cooling to the part, air-dry the cooling and accomplish the back, rise part rack 1 through elevating structure, accomplish the aftertreatment of resin artificial tooth, take out the part.

The lifting mechanism 2 can be an electric, pneumatic or hydraulic telescopic rod, a screw rod mechanism and the like; the movable guide rail 3 can be arranged at one side of the working cabin, or can be erected above each working cabin as shown in fig. 1; the heating element 42 may be a conventional heating wire, a mica heating plate, a ceramic heating plate, etc., and may be a heating means such as a steam pipe, etc. besides the electric heating. The post-processing equipment can adopt automatic control besides manual control, for example, a man-machine interaction controller is arranged, various parameters for controlling the equipment are preset in the man-machine interaction controller, and the man-machine interaction controller automatically controls the movement of the part placing frame 1 and the operation of each working bin, so that the automatic continuous operation of the post-processing of the resin false tooth is realized. Each working bin can be arranged in a large-scale shell, one end of the shell is provided with an equipment inlet used for placing parts, and the other end of the shell is provided with an equipment outlet used for taking out the parts, so that the integrity of the equipment is enhanced.

3D prints resin artificial tooth and is used for individualized customization service mostly, can print out one set or several sets of resin sense tooth parts simultaneously under most circumstances, contains a plurality of parts of variation in size in a set of part usually, and the difference of part size then means the difference of its wax matrix volume of supporting, if toast these parts of variation in size simultaneously, support more part to the wax matrix and need the toast of longer time just can guarantee that it melts completely, and the wax matrix supports the part that has already melted completely and appears the deformation problem under long-time toasting easily. Therefore, parts of different sizes cannot be simultaneously post-processed to ensure quality, and if the post-processing is performed in batches according to the size of the parts, one set of resin denture parts needs to be processed in multiple batches, which undoubtedly greatly reduces efficiency. Aiming at the problem, the invention arranges at least two independent baking areas 41 in the baking bin 4, arranges a corresponding number of part placing areas in the part placing rack 1, respectively places the parts into different part placing areas according to the sizes, respectively controls the baking temperature or the heat preservation time of each independent baking area 41 according to the sizes of the parts in the independent baking areas 41 when the parts are baked, for example, the baking time can be properly prolonged or slightly increased for the independent baking area 41 where the larger part is positioned, and the baking time can be properly shortened for the smaller part, so that the parts can achieve the best baking effect, and the deformation problem caused by over-baking of part parts can be effectively prevented while the wax pattern support is completely melted.

The wax pattern support forms liquid wax after melting, in order to retrieve these liquid wax, the stoving storehouse 4 bottom is provided with wax recovery dish 44, can also set up the recovery dish of openable on the stoving storehouse 4 and take out the mouth, can follow the recovery dish and take out wax recovery dish 44 after the stoving is accomplished.

In the embodiment shown in fig. 2 and 3, the part placing rack 1 includes 3 part placing areas, the 3 part placing areas are used for placing large-sized parts, medium-sized parts and small-sized parts, and the baking chamber 4 is correspondingly provided with 3 independent baking areas 41; the large parts are, for example, maxillary stents, the medium parts are, for example, bridges and mandibular stents of 5 or more, and the small parts are, for example, crowns, bridges and attachments of 5 or less.

Because the risk of part deformation is increased by increasing the baking temperature, the optimal baking effect is realized by setting different baking time for different independent baking areas 41 in a preferred mode, as a preferred embodiment, when the support wax is baked and melted, the temperature of 3 independent baking areas 41 is set to be 60-65 ℃, the heat preservation time for the independent baking area 41 for placing the large-sized parts is 15-18 minutes, the heat preservation time for the independent baking area 41 for placing the medium-sized parts is 10-13 minutes, and the heat preservation time for the independent baking area 41 for placing the small-sized parts is 5-8 minutes.

A specific manner of arranging a plurality of independent baking areas 41 in the baking bin 4 can be as shown in fig. 2, a hollowed-out net 12 is arranged on the periphery of the part placing rack 1, a transverse partition plate 13 is arranged in the part placing rack 1, the transverse partition plate 13 divides the part placing rack 1 into at least two layers of part placing areas, and the heating element 42 is arranged on the side surface of the baking bin 4 corresponding to each part placing area;

when the part placing rack 1 is positioned in the baking bin 4, the transverse partition plate 13 divides the baking bin 4 into at least two independent baking areas 41.

The method is simple and easy to implement, the heating elements 42 are only required to be arranged at the corresponding positions of the baking bin 4 respectively, the transverse partition plates 13 of the part placing rack 1 divide a plurality of independent baking areas 41 in the baking bin 4, and the transverse partition plates 13 are preferably made of materials with good heat insulation effect. In order to facilitate the dropping of the melted liquid wax to the recovery tray at the bottom of the roasting bin 4, the transverse partition plate 13 is arranged obliquely and forms an angle of 5-20 degrees with the horizontal plane, wherein the angle is 15 degrees optimally. In order to prevent the temperature of each independent baking area 41 from influencing each other, the independent baking area 41 is relatively closed, but in order to make the liquid wax on the upper layer drop to the bottom of the baking bin 4, when the part placing frame 1 is positioned in the baking bin 4, a gap is formed between the lower end of the transverse partition plate 13 and the inner wall of the baking bin 4. Although this does not completely isolate the individual bake zones 41, the gap is not sufficient to allow heating of one individual bake zone 41 to have a deforming effect on the parts of another individual bake zone; in addition, the heating element 42 may be positioned away from the aperture to further reduce the interaction of the individual toasting zones.

Although the above-mentioned mode that sets up independent baking zone 41 is comparatively simple, be provided with transverse baffle 13 in part rack 1, in washing storehouse and air-dry cooling storehouse 8, transverse baffle 13 can influence liquid flow or gaseous flow to a certain extent, reduces and washs and air-dry effect. In order to solve the problem, as shown in the embodiment shown in fig. 4 and 5, the transverse partition 13 comprises a plurality of rotating strips 9, two ends of each rotating strip 9 are rotatably connected with the part placing rack 1 through a rotating shaft 96, rotating wheels 91 are arranged on the rotating shafts 96, the rotating wheels 91 of each rotating strip 9 are hinged on a connecting rod 93 and are in transmission connection through the connecting rods 93, at least one rotating wheel 91 on one side is a gear 92, and vertical racks 94 are arranged in the cleaning bin and the air drying and cooling bin 8 corresponding to the gear 92. In toasting storehouse 4, it becomes inclosed transverse baffle 13 to rotate slat 9 amalgamation, form the isolation between each independent baking zone 41, when in washing storehouse and air-drying cooling storehouse 8, with the in-process under part rack 1, gear 92 in the rotation slat 9 and the vertical rack 94 interact in the storehouse, drive each rotation slat 9 through connecting rod 93 and rotation wheel 91 and rotate to vertical or slant position, thereby make original transverse baffle 13 change into the sieve that has the bar hole, rivers or air current just can no longer be restricted, can improve part washing and air-drying cooling's efficiency. In the splicing state, the rotating slats 9 can be overlapped with each other or directly butted, and if the direct butting mode is adopted, the side surface of the rotating slats 9 can be set to have a certain inclination to prevent blocking. The quantity and the width of rotating slat 9 can set up according to actual conditions, as long as do not influence placing of part to when it is in the open mode, the part do not drop can, still add the one deck and do not hinder its pivoted otter board on rotating slat 9 for place the part, avoid the part to directly place on rotating slat 9, rotate slat 9 and rotate the in-process and clip the part or cause the part to drop.

In order to ensure that the rotating slats 9 are in a split state in the toasting compartment 4 and in a non-split open state in the washing compartment and the air-drying and cooling compartment 8, a return spring 95 is connected between the connecting rod 93 and the parts rack 1. When the rotating slat 9 is in a natural state, the rotating slat 9 is kept in a split state, the rotating slat 9 is in an open state under the interaction of the gear 92 and the vertical rack 94 in the cleaning bin and the air-drying cooling bin 8, and after the gear 92 leaves the vertical rack 94, the rotating slat 9 is restored to the split state under the action of the return spring 95.

In addition to the above-mentioned manner of arranging the independent baking area 41, the present invention also provides another manner of arranging the independent baking area 41, as shown in fig. 3, a vertical partition plate 43 is arranged in the baking bin 4, the vertical partition plate 43 divides the baking bin 4 into at least two independent baking areas 41, the component placement rack 1 includes at least two groups of netpens 14 matched with the independent baking areas 41, a gap capable of accommodating the vertical partition plate 43 is formed between adjacent netpens 14, and the internal space of the netpens 14 forms the component placement area.

Because the part placing frame 1 enters the baking bin 4 from top to bottom, the vertical partition plate 43 is arranged in the baking bin 4, the separation effect of the independent baking area 41 can be ensured, and the part placing frame 1 is not hindered from entering and exiting. The vertical partition 43 is also preferably made of heat insulating material, similar to the horizontal partition 13. The part placing rack 1 is provided with a mesh cage 14 matched with the independent baking area 41 and used for placing parts with different sizes respectively and then entering the corresponding independent baking area 41 respectively to realize independent baking of the parts with different sizes. The advantage of setting up vertical baffle 43 in toasting storehouse 4 lies in, can strengthen the isolation effect of each independent district 41 of toasting, and has adopted cylinder mould 14 to place the part, in washing storehouse and air-drying cooling storehouse 8, also can ensure the smooth and easy circulation of rivers and air current. The cylinder mould 14 can be arranged in the part placing frame 1 in a detachable picking and placing mode so as to facilitate the loading and the unloading of parts.

In order to increase the number of parts to be placed in the netpen 14, at least one layer of transverse layering member is arranged in the netpen 14, the transverse layering member divides the netpen 14 into a multi-layer structure, and the parts can be placed in each layer of netpen 14 respectively, but it is necessary to pay attention that the sizes of the parts placed in the netpens 14 in the same group are similar so as to conveniently control the heating temperature or time. The transverse layering piece can adopt a hollowed screen or a closed partition plate, the screen is favorable for flowing of water flow or air flow, but when the transverse layering piece is baked, the molten liquid wax on the upper layer can drip onto the parts on the lower layer, the cleaning difficulty of the parts is increased, therefore, as a preferable mode, the transverse layering piece is an inclined partition plate 15, the included angle between the inclined partition plate 15 and the horizontal plane is 5-20 degrees, the optimal included angle is 15 degrees, and the liquid wax on the upper layer is guided to flow out of one side of the mesh cage 14 through the inclined partition plate 15 so as to be prevented from dripping onto the parts on the lower layer. Although the inclined partition plates 15 are adopted, since a certain gap is formed between the inclined partition plates 15 of two adjacent net cages 14 for water flow and air flow to pass through, the influence of the inclined partition plates 15 on cleaning and air drying is very slight, the inclined partition plates 15 can be set to be in a split form of the rotating slats 9, the openness of the water flow or the air flow is improved by opening the rotating slats 9, and the specific setting mode is the same as that of the transverse partition plates 13.

If the netpen 14 is of a layered structure, the heating elements 42 are arranged along the vertical partition plates 43 and the side walls of the baking bin 4, so that each layer of parts can be heated and baked more uniformly.

The main cleaning object in the cleaning bin is residual wax after melting, and in order to strengthen the cleaning effect, the cleaning bin comprises a solvent dissolving bin 5, a detergent cleaning bin 6 and a purified water cleaning bin 7 which are sequentially arranged.

Parts in the part placing frame 1 sequentially enter a solvent dissolving bin 5, a detergent cleaning bin 6 and a purified water cleaning bin 7 to be subjected to organic solvent dissolving, detergent cleaning and purified water cleaning;

dissolving an organic solvent: the solvent dissolving bin 5 is filled with an organic solvent for dissolving the support wax and is provided with an ultrasonic generator 51, the temperature of the organic solvent is 50-55 ℃, the ultrasonic frequency is 100-130KHz, the cleaning time is 5-8 minutes, the organic solvent can adopt saturated hydrocarbon organic solvents such as butane or gasoline, and the like, and the ultrasonic wave is added in the solvent dissolving bin 5 to effectively disperse and strip the residual wax layer, thereby improving the dissolving efficiency and effect;

cleaning with a detergent: the detergent cleaning bin 6 is filled with a detergent and is provided with a swirler 61, the detergent is stirred by the swirler 61 to improve the cleaning efficiency, the temperature of the detergent is 40-45 ℃, the cleaning time is 5-8min, the detergent can adopt a variety of which the effective component is sodium alkyl sulfonate, and the detergent can wash off the rest residues on the surface of the part;

cleaning with purified water: the purified water cleaning bin 7 is filled with deionized purified water and is provided with a cyclone 61, the cleaning efficiency is improved by stirring the purified water through the cyclone 61, the temperature of the purified water is 40-45 ℃, the cleaning time is 5-8min, and the purified water can wash out residual substances such as detergent and the like.

After washing, the parts enter an air-drying cooling bin 8, a cooling fan 81 is arranged in the air-drying cooling bin 8, when the parts are air-dried and cooled, the cooling fan 81 is used for accelerating cooling and air-drying, and the air-drying cooling time is 5-8 minutes.

The baking chamber 4 must be closed during the baking process of the parts, and the cleaning chamber is preferably closed to prevent liquid from splashing during the cleaning process of the parts. The opening and closing door or the cover plate of the common equipment is arranged on the working bin, but the part placing frame 1 is connected with the lifting mechanism 2. If set up the door of switching on toasting storehouse 4 and cleaning bin, not only the structure is more complicated, can conflict each other with elevating system 2 positions moreover, for this reason, like the embodiment shown in fig. 1, toast the opening shape size unanimous in storehouse 4 and the cleaning bin, part rack 1 top is provided with apron 11, the shape size of apron 11 and the opening phase-match that toasts storehouse 4. When the part placing frame 1 is positioned in the baking bin 4, the opening of the baking bin 4 is sealed by the cover plate 11 to serve as a bin door of the baking bin 4, so that the temperature control effect of the baking bin 4 is ensured, and when the part placing frame 1 is positioned in the cleaning bin, the cover plate 11 serves as a bin door of the cleaning bin; if the cleaning bin comprises a solvent dissolving bin 5, a detergent cleaning bin 6 and a purified water cleaning bin 7, the cover plate 11 can be respectively matched with the openings of the working bins, so that the sealing is realized in the working state, and the liquid is prevented from splashing; in addition, the cover plate 11 may also serve as a door of the seasoning cooling silo 8 if necessary.

Claims

1.3D prints post-processing equipment of resin denture, its characterized in that: the part cleaning and drying device comprises a part placing frame (1), a lifting mechanism (2), a movable guide rail (3), a baking bin (4), a cleaning bin and an air drying and cooling bin (8), wherein the baking bin (4), the cleaning bin and the air drying and cooling bin (8) are sequentially arranged, the movable guide rail (3) is arranged along the arrangement direction of the baking bin (4), the cleaning bin and the air drying and cooling bin (8), and the part placing frame (1) is arranged on the movable guide rail (3) through the lifting mechanism (2);

the baking bin (4) comprises at least two independent baking areas (41), each independent baking area (41) is provided with a heating element (42), and the part placing rack (1) is provided with part placing areas corresponding to the independent baking areas (41);

toast and be provided with vertical baffle (43) in storehouse (4), vertical baffle (43) will toast storehouse (4) and separate for at least two independently toast district (41), part rack (1) including at least two sets of with independently toast district (41) assorted cylinder mould (14), have the clearance that can hold vertical baffle (43) between adjacent cylinder mould (14), cylinder mould (14) inner space forms the district is placed to the part.

2. The post-processing apparatus for a 3D-printed resin denture as claimed in claim 1, wherein: at least one layer of transverse layering piece is arranged in the net cage (14), and the transverse layering piece divides the net cage (14) into a multilayer structure.

3. The post-processing apparatus for a 3D-printed resin denture as claimed in claim 2, wherein: the heating element (42) is arranged along the vertical clapboard (43) and the side wall of the baking bin (4).

4. The post-processing apparatus for a 3D-printed resin denture according to claim 2 or 3, wherein: the transverse layering piece is an inclined clapboard (15), and the included angle between the inclined clapboard (15) and the horizontal plane is 5-20 degrees.

5. The post-processing apparatus for a 3D-printed resin denture as claimed in claim 4, wherein: the inclined partition plate (15) comprises a plurality of rotating strips (9), the two ends of each rotating strip (9) are rotatably connected with the part placing rack (1) through rotating shafts (96), rotating wheels (91) are arranged on the rotating shafts (96), the rotating wheels (91) of the rotating strips (9) are hinged to connecting rods (93) and are in transmission connection through the connecting rods (93), at least one rotating wheel (91) located on the side is a gear (92), and vertical racks (94) are arranged in the cleaning bin and the air drying cooling bin (8) corresponding to the gear (92).

6. The post-processing apparatus for 3D-printed resin denture as claimed in claim 5, a return spring (95) is connected between the link (93) and the part placing frame (1).

7. The post-processing apparatus for a 3D-printed resin denture as claimed in claim 1, wherein: and a wax recovery disc (44) is arranged at the bottom of the baking bin (4).

8. The post-processing apparatus for a 3D-printed resin denture as claimed in claim 1, wherein: the cleaning bin comprises a solvent dissolving bin (5), a detergent cleaning bin (6) and a purified water cleaning bin (7) which are sequentially arranged.

9. The post-processing apparatus for a 3D-printed resin denture as claimed in claim 8, wherein: the solvent dissolving bin (5), the detergent cleaning bin (6) and the purified water cleaning bin (7) are respectively provided with a heating element (42), an ultrasonic generator (51) is arranged in the solvent dissolving bin (5), and a cyclone (61) is arranged in the detergent cleaning bin (6) and the purified water cleaning bin (7).

10. The post-processing apparatus for a 3D-printed resin denture as claimed in claim 1, wherein: the opening shape size that toasts storehouse (4) and washing storehouse is unanimous, part rack (1) top is provided with apron (11), the shape size of apron (11) and the opening phase-match that toasts storehouse (4).

11.3D prints post-processing equipment of resin denture its characterized in that: the part cleaning and drying device comprises a part placing frame (1), a lifting mechanism (2), a movable guide rail (3), a baking bin (4), a cleaning bin and an air drying and cooling bin (8), wherein the baking bin (4), the cleaning bin and the air drying and cooling bin (8) are sequentially arranged, the movable guide rail (3) is arranged along the arrangement direction of the baking bin (4), the cleaning bin and the air drying and cooling bin (8), and the part placing frame (1) is arranged on the movable guide rail (3) through the lifting mechanism (2);

a hollow net (12) is arranged on the periphery of the part placing frame (1), a transverse partition plate (13) is arranged in the part placing frame (1), the part placing frame (1) is divided into at least two layers of part placing areas by the transverse partition plate (13), and the heating elements (42) are arranged on the side face of the baking bin (4) corresponding to the part placing areas;

when the part placing rack (1) is positioned in the baking bin (4), the baking bin (4) is divided into at least two independent baking areas (41) by the transverse partition plate (13).

12. The post-processing apparatus for a 3D-printed resin denture as claimed in claim 11, wherein: the transverse partition plate (13) is obliquely arranged and forms an included angle of 5-20 degrees with the horizontal plane,

when the part placing rack (1) is positioned in the baking bin (4), a gap is formed between the lower end of the transverse partition plate (13) and the inner wall of the baking bin (4).

13. The post-processing apparatus for a 3D-printed resin denture according to claim 11 or 12, wherein: horizontal baffle (13) include a plurality of rotation laths (9), it is connected with part rack (1) rotation through axis of rotation (96) to rotate lath (9) both ends, set up rotation wheel (91) on axis of rotation (96), rotation wheel (91) that each rotated lath (9) articulate on connecting rod (93) and connect through connecting rod (93) transmission, and at least one rotation wheel (91) that are located the avris are gear (92), it is provided with vertical rack (94) to correspond gear (92) in washing storehouse and air-drying cooling storehouse (8).

14. The post-processing apparatus for 3D-printed resin denture as claimed in claim 13, wherein a return spring (95) is connected between the link (93) and the part placing frame (1).

15. The post-processing apparatus for a 3D-printed resin denture as claimed in claim 11, wherein: and a wax recovery disc (44) is arranged at the bottom of the baking bin (4).

16. The post-processing apparatus for a 3D-printed resin denture as claimed in claim 11, wherein: the cleaning bin comprises a solvent dissolving bin (5), a detergent cleaning bin (6) and a purified water cleaning bin (7) which are sequentially arranged.

17. The post-processing apparatus for a 3D-printed resin denture as claimed in claim 16, wherein: the solvent dissolving bin (5), the detergent cleaning bin (6) and the purified water cleaning bin (7) are respectively provided with a heating element (42), an ultrasonic generator (51) is arranged in the solvent dissolving bin (5), and a cyclone (61) is arranged in the detergent cleaning bin (6) and the purified water cleaning bin (7).

18. The post-processing apparatus for a 3D-printed resin denture as claimed in claim 11, wherein: the opening shape size that toasts storehouse (4) and washing storehouse is unanimous, part rack (1) top is provided with apron (11), the shape size of apron (11) and the opening phase-match that toasts storehouse (4).

A post-processing method of a 3D-printed resin denture, characterized by using the post-processing apparatus of a 3D-printed resin denture according to any one of claims 1 to 18, comprising the steps of:

baking to melt the supporting wax: the method comprises the steps that each part of the printed resin false tooth is placed into each part placing area of a part placing frame (1) according to the size, the part placing frame (1) is moved to the upper portion of a baking bin (4) along a moving track, the part placing frame (1) is placed into the baking bin (4) through a lifting mechanism (2), the part in each part placing area is located in each independent baking area (41) through baking and melting supporting wax of the part, the baking temperature or the heat preservation time of each independent baking area (41) is controlled according to the size of the resin false tooth, and after baking is completed, the part placing frame (1) is lifted through a lifting structure;

cleaning parts: the part placing frame (1) is moved to the position above the cleaning bin along the moving track, the part placing frame (1) is placed into the cleaning bin through the lifting mechanism (2) to clean the parts, and after the parts are cleaned, the part placing frame (1) is lifted through the lifting structure;

air-drying and cooling the parts: move part rack (1) to air-dry cooling bin (8) top along moving the track, put into air-dry cooling bin (8) with part rack (1) through elevating system (2), carry out the air-dry cooling to the part, air-dry the cooling and accomplish the back, rise part rack (1) through elevation structure, accomplish the aftertreatment of resin artificial tooth, take out the part.

20. The post-processing method of a 3D-printed resin denture according to claim 19, wherein: the part placing rack (1) comprises 3 part placing areas, wherein large-sized parts, medium-sized parts and small-sized parts are respectively placed in the 3 part placing areas, and the baking bin (4) is correspondingly provided with 3 independent baking areas (41);

when the support wax is roasted and melted, the temperature of the 3 independent roasting areas (41) is set to be 60-65 ℃, the heat preservation time of the independent roasting area (41) for placing the large-sized parts is 15-18 minutes, the heat preservation time of the independent roasting area (41) for placing the medium-sized parts is 10-13 minutes, and the heat preservation time of the independent roasting area (41) for placing the small-sized parts is 5-8 minutes.

21. The post-processing method of a 3D-printed resin denture according to claim 19, wherein: the cleaning bin comprises a solvent dissolving bin (5), a detergent cleaning bin (6) and a purified water cleaning bin (7) which are sequentially arranged, and parts in the part placing frame (1) sequentially enter the solvent dissolving bin (5), the detergent cleaning bin (6) and the purified water cleaning bin (7) to be subjected to organic solvent dissolving, detergent cleaning and purified water cleaning;

dissolving an organic solvent: the solvent dissolving bin (5) is filled with an organic solvent for dissolving the support wax and is provided with an ultrasonic generator (51), the temperature of the organic solvent is 50-55 ℃, the ultrasonic frequency is 100-130KHz, and the cleaning time is 5-8 minutes;

cleaning with a detergent: the detergent cleaning bin (6) is filled with detergent and is provided with a cyclone (61), the cleaning efficiency is improved by stirring the detergent through the cyclone (61), the temperature of the detergent is 40-45 ℃, and the cleaning time is 5-8 min;

cleaning with purified water: the purified water cleaning bin (7) is filled with deionized purified water and provided with a swirler (61), the purified water is stirred by the swirler (61) to improve the cleaning efficiency, the temperature of the detergent is 40-45 ℃, and the cleaning time is 5-8 min.

22. The post-processing method of a 3D-printed resin denture according to claim 19, wherein: a cooling fan (81) is arranged in the air-drying cooling bin (8), when the parts are cooled in an air-drying mode, the cooling fan (81) is used for accelerating cooling and air-drying, and the air-drying cooling time is 5-8 minutes.