Apparatus and method for manufacturing a bioabsorbable denture

Abstract

This invention relates to the field of denture printing equipment, specifically to a manufacturing device and method for bioadhesive dentures. The device includes a printer housing, a worktable located in the center of the housing, a scraper sleeve slidably mounted on the worktable surface, and two scrapers offset at the lower part of the scraper sleeve. It also includes a switching mechanism movably mounted on both sides of the scraper sleeve for driving the two scrapers to switch positions, and an anti-adhesion mechanism movably mounted between the inner wall of the scraper sleeve and the scrapers to prevent foam from adhering to the surface of the scrapers after switching. In this bioadhesive denture manufacturing device, the anti-adhesion mechanism compresses a corresponding airbag at its top when the scraper rises to the switching position. The compressed airbag continuously sprays a directional airflow through an exhaust pipe and nozzle to the scraper area of ​​the next position. This airflow forms an air curtain barrier before the scraper enters the printing area, blowing away scum and residual foam from the collection area during the self-cleaning process from the scraper surface, preventing them from being carried back to the resin surface when the scraper resets.

Description

Technical Field

[0001] This invention relates to the field of denture printing equipment, specifically to a manufacturing device and method for bio-adsorbent dentures. Background Technology

[0002] Bio-adhesive dentures, as an important application in the field of oral restoration, have extremely high requirements for molding accuracy, surface quality and structural integrity. They are usually manufactured using high-precision photopolymerization 3D printing equipment. During the photopolymerization printing process, the liquid photosensitive resin is affected by light, stirring and platform reciprocating motion, and a large number of bubbles and foams are easily generated on the liquid surface. At the same time, during the repeated curing and peeling process, semi-cured scum will form and float on the liquid surface.

[0003] Most existing denture printing equipment uses a single scraper to reciprocate and level the liquid surface. The scraper pushes the foam and scum to the collection areas at both ends of the worktable, where they are then centrally processed by the matching collector.

[0004] The following problems in the existing technology have not been well resolved: 1. During the return stroke, the surface of the scraper is prone to adhering to the scraped foam and scum, which are then carried back into the printing area with the return stroke, causing defects such as pitting, holes, and layering on the surface of the printed parts. This seriously affects the molding accuracy and structural strength of the denture, and may even lead to problems such as misalignment of the implant guide plate and poor fit of the denture base; 2. At the same time, the single scraper is in long-term contact with resin and scum. The scum is prone to solidify and clump on the scraper surface, which not only reduces the scraping and leveling effect, but also scratches the release film of the resin tank and shortens the service life of consumables. Although some equipment has scum collection areas and collectors at both ends of the worktable, there is a lack of cleaning and anti-adhesion measures for the scraper itself. The foam and scum accumulated in the collection area are still prone to flow back and adhere to the surface of the return scraper, which cannot prevent secondary pollution from the source. Summary of the Invention

[0005] The purpose of this invention is to provide a manufacturing device for bio-adhesive dentures to solve the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: a manufacturing device for bio-adhesive dentures, comprising a printer housing, a worktable disposed in the middle of the printer housing, a scraper sleeve slidably disposed on the surface of the worktable, and two scrapers offsetly mounted on the lower part of the scraper sleeve;

[0006] It also includes: a switching mechanism that is mounted on both sides of the scraper sleeve, used to drive the two scrapers to switch positions;

[0007] An anti-stick mechanism is installed between the inner wall of the scraper sleeve and the scraper blade to prevent foam from adhering to the surface of the scraper blade after switching.

[0008] Preferably, the switching mechanism includes: a groove formed inside the scraper sleeve, and two scrapers sliding misaligned inside the groove;

[0009] The adjustment grooves are symmetrically opened on both sides of the scraper sleeve, and the inside of the adjustment groove is rotatably connected to the shaft. The surface of the shaft is fixedly sleeved with an arc-shaped actuating plate that drives the two scrapers to move in a staggered manner.

[0010] A pad is rotatably mounted on the surface of the shaft. A lever is fixedly connected to the surface of the shaft and cooperates with the pad. A tension spring is fixedly connected between the surface of the lever and the surface of the adjacent pad.

[0011] A push rod that is fixedly mounted on the surface of the worktable to drive the movement of the lever.

[0012] Preferably, vertical grooves are symmetrically formed between the adjusting groove and the inner wall of the groove, and the two vertical grooves correspond one-to-one with the two scrapers;

[0013] Arc-shaped grooves are provided on both sides of the arc-shaped actuating plate. The two arc-shaped grooves correspond one-to-one with the two vertical grooves. A pin is slidably arranged between the arc-shaped groove and the corresponding vertical groove. One end of the pin is fixedly connected to the side wall of the adjacent scraper.

[0014] Preferably, the inner wall of the scraper sleeve is provided with a movable groove that cooperates with the adjustment groove, and the end of the shaft away from the groove is rotatably disposed inside the movable groove;

[0015] Both the pad and the actuating strip are set inside the corresponding movable groove, and the lower part of the inner wall of the movable groove is symmetrically fixed with a limiting pin to restrict the deflection of the pad. The inner top surface of the movable groove is provided with a conical through groove that cooperates with the actuating strip.

[0016] Preferably, the anti-sticking mechanism includes: a sealing plate detachably installed on the top of the scraper sleeve, and a pressure plate is compressed and installed at the bottom of the sealing plate, and an airbag is provided between the bottom of the pressure plate and the top of the adjacent scraper.

[0017] An exhaust pipe is fixedly connected to the lower part of the scraper, and the two airbags are connected to the ends of the two exhaust pipes in a cross manner.

[0018] Preferably, a spring telescopic rod is fixedly connected between the top of the pressure plate and the bottom of the sealing plate, and both the bottom of the pressure plate and the top of the scraper are provided with arc grooves that cooperate with the airbag.

[0019] A partition is provided at the middle position of the bottom of the sealing plate, and a slot is provided at the top of the scraper to cooperate with the partition.

[0020] Preferably, a spring tube is fixedly connected between one end of the airbag and the corresponding end of the exhaust pipe, and an air intake nozzle is fixedly connected to the other end of the airbag.

[0021] The top and bottom of the inner wall of the airbag are fixedly connected to a reset arc plate, and a reset spring is fixedly connected between the two reset arc plates.

[0022] Preferably, the surface of the exhaust pipe is provided with exhaust nozzles that cooperate with the side wall of the scraper at equal intervals, and an exhaust valve is provided inside the exhaust nozzle;

[0023] Each of the two scraper sleeves has a settling groove on one side opposite to the other, and a self-cleaning plate is slidably arranged inside the settling groove. A compression spring is fixedly connected between one side of the self-cleaning plate and the inner wall of the settling groove, and the other side of the self-cleaning plate overlaps the side wall of the corresponding scraper.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] In this invention, through the anti-sticking mechanism, when the scraper rises to switch positions, its top squeezes the corresponding airbag. After being compressed, the airbag continuously sprays directional airflow to the scraper area of ​​the next position through the exhaust pipe and exhaust nozzle. This airflow forms an air curtain barrier before the scraper enters the printing area, blowing away the scum and residual foam in the collection area that fall off during the self-cleaning process from the scraper surface, preventing them from being carried back to the resin liquid surface when the scraper resets.

[0026] In this invention, the scraper switching mechanism works in conjunction with the self-cleaning plate to perform real-time self-cleaning during the scraper switching process. This reduces the accumulation of solidified scum on the scraper surface, lowers the risk of scratching the release film, extends the service life of consumables, reduces the frequency of manual cleaning, improves the continuous working capacity and printing yield of the equipment, and reduces maintenance costs. Attached Figure Description

[0027] Figure 1 This is a perspective view of the printer housing and worktable of the present invention;

[0028] Figure 2 For the present invention Figure 1 Enlarged view of the structure at point A in the middle;

[0029] Figure 3 This is a cross-sectional view of a portion of the worktable and scraper sleeve of the present invention;

[0030] Figure 4 This is a side sectional view of the scraper sleeve of the present invention;

[0031] Figure 5 For the present invention Figure 4 Enlarged view of the structure at point B;

[0032] Figure 6 This is a side sectional view of the scraper sleeve and the groove position of the present invention;

[0033] Figure 7 For the present invention Figure 6 Enlarged view of the structure at point C;

[0034] Figure 8 This is a side sectional view showing the position of the scraper sleeve and the adjusting groove of the present invention;

[0035] Figure 9 This is a side sectional view of the scraper sleeve and the movable groove of the present invention;

[0036] Figure 10 This is a cross-sectional view of a portion of the airbag of the present invention;

[0037] Figure 11 For the present invention Figure 10 Enlarged view of the structure at point D;

[0038] Figure 12 This is a perspective view of the exhaust pipe and exhaust nozzle of the present invention.

[0039] In the diagram: 1. Printer housing; 2. Worktable; 3. Scraper sleeve; 4. Scraper blade; 5. Switching mechanism; 501. Groove; 502. Adjustment groove; 503. Shaft; 504. Arc-shaped actuating plate; 505. Pad strip; 506. Actuating strip; 507. Tension spring; 508. Push rod; 509. Vertical groove; 510. Arc-shaped groove; 511. Pin; 512. Movable groove; 513. Limit pin; 6. Anti-stick mechanism; 601. Sealing plate; 602. Pressure plate; 603. Airbag; 604. Exhaust pipe; 605. Spring telescopic rod; 606. Bourdon tube; 607. Exhaust nozzle; 608. Settlement groove; 609. Self-cleaning plate. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Please see Figures 1 to 12 This invention provides a technical solution: a manufacturing device for bio-adhesive dentures, including a printer housing 1, a worktable 2 disposed in the middle of the printer housing 1, a scraper sleeve 3 slidably disposed on the surface of the worktable 2, and two scrapers 4 offsetly mounted on the lower part of the scraper sleeve 3. It should be noted that: a driver is mounted on the surface of the worktable 2 to drive the scraper sleeve 3 to move back and forth, which is prior art and will not be described in detail here.

[0042] It also includes a switching mechanism 5 movably mounted on both sides of the scraper sleeve 3, used to drive the two scrapers 4 to switch positions. It should be noted that when the scraper sleeve 3 reciprocates to its limit position, the switching mechanism 5 switches the working state of the two scrapers 4; and the front and rear positions of the worktable 2 are set as collection areas to collect the foam and scum scraped by the scrapers 4, and a collector is set in the collection area to collect and process the foam and scum. The collector here is existing technology for denture printers and will not be described in detail.

[0043] An anti-stick mechanism 6 is installed between the inner wall of the scraper sleeve 3 and the scraper 4 to prevent foam from adhering to the surface of the scraper 4 after switching.

[0044] In this embodiment, as Figures 1 to 12 As shown, the switching mechanism 5 includes a groove 501 formed inside the scraper sleeve 3, and two scrapers 4 sliding in a staggered manner inside the groove 501.

[0045] Adjustment grooves 502 are symmetrically formed on both sides of the scraper sleeve 3, and a shaft 503 is rotatably connected inside the adjustment grooves 502. An arc-shaped actuating plate 504, which drives the two scrapers 4 to move in a staggered manner, is fixedly sleeved on the surface of the shaft 503. It should be noted that the two adjustment grooves 502 are respectively located on both sides of the groove 501. When the shaft 503 rotates with the arc-shaped actuating plate 504, the arc-shaped actuating plate 504 drives the two scrapers 4 to move in a staggered manner inside the groove 501.

[0046] A pad 505 is rotatably mounted on the surface of the shaft 503. A lever 506 that mates with the pad 505 is fixedly connected to the surface of the shaft 503, and a tension spring 507 is fixedly connected between the surface of the lever 506 and the surface of the adjacent pad 505. It should be noted that the tension spring 507 pulls the pad 505 and the lever 506 to deflect them relative to each other, thereby limiting the position of the lever 506 after swinging.

[0047] A push rod 508 is fixedly installed on the surface of the workbench 2 to drive the movement of the actuating bar 506. It should be noted that when the scraper sleeve 3 moves the actuating bar 506 to the position of the push rod 508, the actuating bar 506 is compressed and its deflection direction is switched. The actuating bar 506 with the switched direction drives the shaft 503 to rotate synchronously, so that the shaft 503 drives the arc-shaped actuating plate 504 to switch the position of the two scrapers 4.

[0048] In this embodiment, as Figures 1 to 12 As shown, vertical grooves 509 are symmetrically provided between the inner walls of the adjusting groove 502 and the groove 501, and the two vertical grooves 509 correspond one-to-one with the two scrapers 4.

[0049] Arc-shaped grooves 510 are formed on both sides of the arc-shaped actuating plate 504. The two arc-shaped grooves 510 correspond one-to-one with the two vertical grooves 509, and a pin 511 is slidably arranged between the arc-shaped groove 510 and the corresponding vertical groove 509. One end of the pin 511 is fixedly connected to the side wall of the adjacent scraper 4. It should be noted that when the arc-shaped actuating plate 504 rotates, the arc-shaped groove 510 and the pin 511 cooperate to slide, driving the pin 511 to slide inside the corresponding vertical groove 509. Then, the scraper 4 connected to the pin 511 slides up and down along the trajectory of the vertical groove 509.

[0050] In this embodiment, as Figures 1 to 12 As shown, the inner wall of the scraper sleeve 3 is provided with a movable groove 512 that cooperates with the adjustment groove 502, and the end of the shaft 503 away from the groove 501 is rotatably disposed inside the movable groove 512.

[0051] Both the pad strip 505 and the actuating strip 506 are set inside the corresponding movable groove 512, and the lower part of the inner wall of the movable groove 512 is symmetrically fixedly connected with a limiting pin 513 to restrict the deflection of the pad strip 505. The inner top surface of the movable groove 512 is provided with a conical through groove that cooperates with the actuating strip 506. It should be noted that: the actuating bar 506 is designed to pass through the conical groove, allowing the push rod 508 to press against the extended end of the actuating bar 506 and cause the shaft 503 to deflect; under the action of the conical groove and the limiting pin 513, when the actuating bar 506 deflects, the tension spring 507 pulls the actuating bar 506 and the pad 505 to deflect relative to each other. During this process, the actuating bar 506 is restricted by the conical groove and cannot continue to deflect, while the pad 505 is restricted by the limiting pin 513 and cannot continue to deflect. At this time, the tension force of the tension spring 507 can effectively restrict the deflected actuating bar 506 and pad 505 to the current position, achieving the positioning effect.

[0052] In this embodiment, as Figures 1 to 12 As shown, the anti-sticking mechanism 6 includes: a sealing plate 601 detachably mounted on the top of the scraper sleeve 3, and a pressure plate 602 compressedly mounted on the bottom of the sealing plate 601. An air bladder 603 is provided between the bottom of the pressure plate 602 and the top of the adjacent scraper 4. It should be noted that the sealing plate 601 and the scraper sleeve 3 are fixed together by bolts.

[0053] An exhaust pipe 604 is fixedly connected to the lower part of the scraper 4, and two airbags 603 are connected to the ends of the two exhaust pipes 604 in a crisscross manner. It should be noted that this crisscross manner means that the air outlet of each airbag 603 is connected to the exhaust pipe 604 on the other side of the scraper 4 via a spring tube 606. When the scraper 4 rises inside the scraper sleeve 3, it squeezes the top airbag 603 upwards. At this time, the pressure plate 602 is pressed against the bottom of the sealing plate 601 and rises. The pressure plate 602 exerts pressure on the surface of the airbag 603, driving the gas inside the airbag 603 to be discharged from the corresponding exhaust pipe 604. Because the two airbags 603 are staggered, the airbag 603 at the rising scraper 4 position supplies air to the exhaust pipe 604 inside the lower scraper 4, causing the gas discharged from the lower part of the lower scraper 4 to blow air onto the foam collection area, preventing foam and scum from flowing back and adhering to the surface of the lower scraper 4, achieving an isolation effect and preventing foam from being carried away by the scraper 4. Returning to the printing area, ensuring the quality of bioadhesive denture printing and manufacturing; the exhaust nozzle 607 is at a 30° to 60° angle to the resin liquid surface and is evenly arranged along the length of the scraper 4, so that the ejected airflow forms an air curtain barrier that blows downwards and outwards towards the collection area, which not only avoids the airflow directly impacting the resin liquid surface and causing splashing, but also efficiently pushes scum and foam to the collection area. In addition, the volume of the airbag 603, the orifice diameter of the exhaust nozzle 607 and the flow area of ​​the exhaust valve are matched and designed to control the airflow intensity within the range of 0.1 to 0.3 MPa, which can reliably blow away the adhering scum without disturbing the flatness of the liquid surface or damaging the uniformity of the resin, ensuring the printing accuracy of the denture. At the same time, the equipment is not in the printing state during the blowing process. When the blowing stops and the scraper 4 crosses the printing area to complete the scraping, the printing is restarted, and this cycle is repeated.

[0054] In this embodiment, as Figures 1 to 12 As shown, a spring telescopic rod 605 is fixedly connected between the top of the pressure plate 602 and the bottom of the sealing plate 601. The bottom of the pressure plate 602 and the top of the scraper 4 are both provided with arc grooves that cooperate with the airbag 603.

[0055] A partition is provided in the middle of the bottom of the sealing plate 601, and a slot is provided on the top of the scraper 4 to mate with the partition. It should be noted that the partition is provided to prevent interference between the two airbags 603 during compression.

[0056] In this embodiment, as Figures 1 to 12As shown, a spring tube 606 is fixedly connected between one end of the airbag 603 and the corresponding end of the exhaust pipe 604, and an air intake nozzle is fixedly connected to the other end of the airbag 603. It should be noted that the self-cleaning plate 609 is made of wear-resistant flexible polymer material, and its working surface hardness is lower than that of the scraper 4. During long-term reciprocating self-cleaning, the self-cleaning plate 609 wears out first and will not form scratches or abrasions on the surface of the scraper 4. The self-cleaning plate 609 and the sink 608 are slidably detachable. When the wear of the self-cleaning plate 609 reaches the preset threshold, it can be replaced separately without replacing the entire scraper 4, reducing maintenance costs and ensuring a long-term stable self-cleaning effect. The compression spring always provides a constant clamping force, so that the self-cleaning plate 609 can still fit tightly against the surface of the scraper 4 after wear, avoiding cleaning failure due to increased gaps.

[0057] Both the top and bottom of the inner wall of the airbag 603 are fixedly connected to reset arc plates, and a reset spring is fixedly connected between the two reset arc plates. It should be noted that the top of the airbag 603 is fixedly connected to the bottom of the pressure plate 602, and the bottom of the airbag 603 overlaps the top of the scraper 4. When the scraper 4 moves down inside the scraper sleeve 3, the scraper 4 releases the pressure on the airbag 603. At this time, the reset arc plates and the reset spring drive the airbag 603 to return to its initial state, and the air intake nozzle replenishes the airbag 603 with gas. Both the air intake nozzle and the exhaust valve are equipped with one-way valves, and the two one-way valves are set in opposite directions.

[0058] In this embodiment, as Figures 1 to 12 As shown, the surface of the exhaust pipe 604 is equidistantly provided with exhaust nozzles 607 that mate with the side wall of the scraper 4, and an exhaust valve is provided inside the exhaust nozzles 607. It should be noted that the exhaust valve enables the exhaust nozzles 607 to exhaust a fixed amount of gas. This fixed amount of gas exhaust prevents the airbag 603 from expelling gas instantly. Therefore, when the scraper 4 rises, it will cause the airbag 603 to compress the spring telescopic rod 605 to retract. The retracted spring telescopic rod 605 applies pressure to the pressure plate 602, causing the pressure plate 602 to continuously compress the airbag 603 to exhaust gas until the gas inside the airbag 603 is completely expelled. When the gas inside the airbag 603 is completely expelled, the scraper sleeve 3, carrying the scraper 4, leaves the foam and scum collection area and does not enter the printing area.

[0059] Each of the two scraper sleeves 3 has a recessed groove 608 on one side, and a self-cleaning plate 609 is slidably disposed inside the recessed groove 608. A compression spring is fixedly connected between one side of the self-cleaning plate 609 and the inner wall of the recessed groove 608, and the other side of the self-cleaning plate 609 overlaps the side wall of the corresponding scraper 4. It should be noted that the lower part of the scraper 4 is designed with an inclined surface. When the scraper 4 is retracted into the scraper sleeve 3, the compression spring drives the self-cleaning plate 609 to adhere to the surface of the scraper 4, thereby cleaning the surface of the scraper 4.

[0060] In this embodiment, as Figures 1 to 12As shown, a method of using a bio-adhesive denture manufacturing device includes the following steps:

[0061] S1. During the operation of the equipment, the scraper sleeve 3 inside the printer housing 1 moves back and forth along the worktable 2 area. The scraper blade 4 at the bottom of the scraper sleeve 3 simultaneously scrapes and collects the foam and scum floating on the resin liquid surface, and pushes them stably to the preset collection areas in front and behind the worktable 2 to prevent foam and scum from interfering with the forming accuracy and surface quality of the denture printing, and to ensure the dimensional consistency and structural integrity of the printed parts.

[0062] S2. When the scraper sleeve 3 reciprocates to its travel limit position, the actuating bars 506 on both sides of the scraper sleeve 3 contact the push rods 508 correspondingly provided on the worktable 2 and generate a squeezing effect. The compressed actuating bars 506 drive the shaft 503 to achieve coaxial rotation inside the scraper sleeve 3. Subsequently, the compressed and deflected actuating bars 506, under the elastic reset action of the tension spring 507 and the limiting constraint of the pad 505, complete a 90° deflection and are limited and fixed at the current work position. The arc-shaped actuating plate 504, which rotates 90° synchronously with the shaft 503, passes through the arc opened on its surface. The groove 510 and the pin 511 on the surface of the scraper 4 form a sliding fit, thereby driving the scraper 4 to switch positions along the trajectory of the vertical groove 509 at the lower part of the scraper sleeve 3. Since the two scrapers 4 are arranged in a staggered manner, they complete the switching of working states at this time. One scraper 4 is retracted into the scraper sleeve 3, and the self-cleaning plate 609 performs a comprehensive self-cleaning treatment on the surface of the scraper 4 to reduce the solidification and accumulation of scum on the surface of the scraper 4 and reduce the risk of scratching the release film. The other scraper 4 extends out from the scraper sleeve 3 and enters the working position to perform liquid surface scraping operation.

[0063] S3. After the two scrapers 4 complete the station switching, the top of the scraper 4 in the rising station exerts a squeezing effect on the top of the corresponding airbag 603, causing the airbag 603 to move upward and drive the spring telescopic rod 605 on the top of the pressure plate 602 to contract. The elastic restoring force of the spring telescopic rod 605 acts on the surface of the airbag 603 through the pressure plate 602. Under the bidirectional clamping force of the pressure plate 602 and the scraper 4, the airbag 603 undergoes compression deformation. Since the air supply end of the airbag 603 is connected to the scraper 4 in the lower station through the exhaust pipe 604, and the exhaust nozzle 607 is for quantitative exhaust, under the coordinated cooperation of the exhaust pipe 604 and the exhaust nozzle 607, the compressed airbag 603 continuously and directionally blows the internal gas to the scraper 4 area in the lower station, effectively blowing the scum and residual foam that fell off during the self-cleaning process of the other scraper 4 into the collection area, avoiding accumulation and bringing it into the printing area.

[0064] S4. Simultaneously, after the scraper sleeve 3 completes the switching of the scraper blade 4 position, the scraper sleeve 3 moves in the opposite direction to start the next round of scraping operation cycle. At this time, the exhaust nozzle 607 continuously generates directional blowing airflow, which can effectively block the backflow of foam and scum in the collection area and prevent them from adhering to the surface of the scraper blade 4 in the lower position. This avoids the scraper blade 4 from bringing foam and scum back to the printing area during the reset scraping process, thus affecting the printing quality. When the scraper blade 4 resets and leaves the foam and scum collection area, the air bag 603 completes the exhaust process and stops blowing. Then, the scraper blade 4 leaves the collection area with the scraper sleeve 3 and smoothly enters the printing area to perform the next round of liquid surface scraping operation.

[0065] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A manufacturing device for bio-adsorbent dentures, comprising a printer housing (1), a workbench (2) is provided in the middle of the printer housing (1), a scraper sleeve (3) is slidably provided on the surface of the workbench (2), and two scrapers (4) are installed at the lower part of the scraper sleeve (3) in a staggered manner. Its features are, Also includes: The switching mechanism (5) installed on both sides of the scraper sleeve (3) is used to drive the two scrapers (4) to switch positions; An anti-sticking mechanism (6) is installed between the inner wall of the scraper sleeve (3) and the scraper (4) to prevent foam from adhering to the surface of the scraper (4) after switching.

2. The manufacturing equipment for a bio-adhesive denture according to claim 1, characterized in that: The switching mechanism (5) includes: a groove (501) formed inside the scraper sleeve (3), and two scrapers (4) sliding misaligned inside the groove (501); The adjustment grooves (502) are symmetrically opened on both sides of the scraper sleeve (3), and the shaft (503) is rotatably connected inside the adjustment groove (502). The surface of the shaft (503) is fixedly sleeved with an arc-shaped actuating plate (504) that drives the two scrapers (4) to move in a staggered manner. A pad (505) is rotatably disposed on the surface of the shaft (503). A lever (506) that cooperates with the pad (505) is fixedly connected to the surface of the shaft (503), and a tension spring (507) is fixedly connected between the surface of the lever (506) and the surface of the adjacent pad (505). A push rod (508) is fixedly installed on the surface of the workbench (2) to drive the movement of the toggle bar (506).

3. The manufacturing equipment for a bio-adhesive denture according to claim 2, characterized in that: Vertical grooves (509) are symmetrically provided between the inner walls of the adjustment groove (502) and the groove (501), and the two vertical grooves (509) correspond one-to-one with the two scrapers (4); Arc-shaped grooves (510) are respectively provided on both sides of the arc-shaped actuating plate (504). The two arc-shaped grooves (510) correspond one-to-one with the two vertical grooves (509). A pin (511) is slidably provided between the arc-shaped groove (510) and the corresponding vertical groove (509). One end of the pin (511) is fixedly connected to the side wall of the adjacent scraper (4).

4. The manufacturing equipment for a bio-adhesive denture according to claim 3, characterized in that: The inner wall of the scraper sleeve (3) is provided with a movable groove (512) that cooperates with the adjustment groove (502), and the end of the shaft (503) away from the groove (501) is rotatably disposed inside the movable groove (512); The pad strip (505) and the actuating strip (506) are both disposed inside the corresponding movable groove (512), and the lower part of the inner wall of the movable groove (512) is symmetrically fixedly connected with a limiting pin (513) to restrict the deflection of the pad strip (505). The inner top surface of the movable groove (512) is provided with a conical through groove that cooperates with the actuating strip (506).

5. The manufacturing equipment for a bio-adhesive denture according to claim 4, characterized in that: The anti-sticking mechanism (6) includes: a sealing plate (601) detachably installed on the top of the scraper sleeve (3), and a pressure plate (602) is compressed and installed at the bottom of the sealing plate (601), and an airbag (603) is provided between the bottom of the pressure plate (602) and the top of the adjacent scraper (4). An exhaust pipe (604) is fixedly connected to the lower part of the scraper (4), and the two airbags (603) are respectively connected to the ends of the two exhaust pipes (604) in a cross manner.

6. The manufacturing equipment for a bio-adhesive denture according to claim 5, characterized in that: A spring telescopic rod (605) is fixedly connected between the top of the pressure plate (602) and the bottom of the sealing plate (601). The bottom of the pressure plate (602) and the top of the scraper (4) are both provided with arc grooves that cooperate with the airbag (603). A partition is provided at the middle position of the bottom of the sealing plate (601), and a slot is provided at the top of the scraper (4) to cooperate with the partition.

7. The manufacturing equipment for a bio-adhesive denture according to claim 6, characterized in that: A spring tube (606) is fixedly connected between one end of the airbag (603) and the end of the corresponding exhaust pipe (604), and an air intake nozzle is fixedly connected to the other end of the airbag (603). The top and bottom of the inner wall of the airbag (603) are fixedly connected to a reset arc plate, and a reset spring is fixedly connected between the two reset arc plates.

8. The manufacturing equipment for a bio-adhesive denture according to claim 7, characterized in that: The surface of the exhaust pipe (604) is provided with exhaust nozzles (607) that cooperate with the side wall of the scraper (4) at equal intervals, and an exhaust valve is provided inside the exhaust nozzles (607); Each of the two scraper sleeves (3) has a sink groove (608) on one side opposite to the other, and a self-cleaning plate (609) is slidably arranged inside the sink groove (608). A compression spring is fixedly connected between one side of the self-cleaning plate (609) and the inner wall of the sink groove (608), and the other side of the self-cleaning plate (609) overlaps the side wall of the corresponding scraper (4).

9. A method of using a manufacturing device for bio-adhesive dentures, characterized in that, The manufacturing apparatus for a bio-adhesive denture as described in any one of claims 1-8 includes the following steps: S1. The scraper sleeve (3) moves back and forth along the workbench (2), driving the scraper (4) to scrape off the foam and scum on the surface of the resin liquid and collect them in the front and back collection areas of the workbench (2). S2. When the scraper sleeve (3) moves to the limit of its stroke, the actuating bar (506) is squeezed by the push rod (508), and the drive shaft (503) and the arc-shaped actuating plate (504) rotate 90°. Through the arc-shaped groove (510) and the pin (511), the two staggered scrapers (4) complete the station switching along the vertical groove (509): one scraper (4) retracts and cleans the surface with the help of the self-cleaning plate (609), and the other scraper (4) extends into the working station. S3. The scraper (4) in the rising position squeezes the corresponding air bag (603). After the air bag (603) is compressed, the gas is blown in a direction through the exhaust pipe (604) to the area of ​​another scraper (4), and the self-cleaning scum and residual foam are blown to the collection area to avoid accumulation and being brought into the printing area. S4. The scraper sleeve (3) moves in the opposite direction to start the next cycle. The exhaust nozzle (607) continues to blow, blocking the backflow of foam scum in the collection area and preventing it from adhering to the surface of the scraper (4) at the lower station. When the scraper (4) leaves the collection area, the air bag (603) stops blowing, and the scraper (4) smoothly enters the printing area to perform the next round of scraping operation.

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