Film laminating system

The integration of a control system for dental impression machines automates the production of shell-type orthodontic aligners by linking processing steps, addressing inefficiencies and enabling high-volume, fast-paced production.

CN111846824BActive Publication Date: 2025-07-15ZHEJIANG YINCHILI MEDICAL TECH CO LTD
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Patent Information

Application Number
CN202010604628.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-06-29
Publication Date
2025-07-15
Estimated Expiration
2040-06-29

AI Technical Summary

Technical Problem

The existing membrane press cannot achieve automated connection between multiple stations, resulting in the inability to meet the requirements of multi-film quantity and fast-paced production, and the inability to efficiently produce shell-shaped dental orthodontic devices.

Method used

A membrane pressing system is designed, including a control device, a transfer device, a feeding device, a membrane distribution device, a preheating device, a heating device and a membrane pressing device. Through the control device, the automatic transportation and processing of the dental jaw model between different stations is realized, including the configuration, preheating, heating and pressing of the diaphragm to form a shell-shaped dental orthodontic device.

Benefits of technology

The production of multi-pressure films and fast-paced production is achieved, the production efficiency of shell-shaped dental orthodontic devices is improved, and the close connection and efficient operation of each processing step is ensured.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a film pressing system for pressing a film onto a dental model. The film pressing system includes: a control device, a transfer device, a feeding device, a film matching device, a preheating device, a heating device, a film pressing device, and a blanking device. The transfer device, the feeding device, the film matching device, the preheating device, the heating device, the film pressing device, and the blanking device are respectively communicatively connected to the control device. The control device controls the transfer device, the feeding device, the film matching device, the preheating device, the heating device, the film pressing device, and the blanking device to perform the transfer of the dental model, the feeding of the dental model, the matching of the film, the preheating of the film, the heating of the film, the pressing of the film, and the transfer of the dental model with the shell-shaped dental appliance, and presses the film onto the dental model to form a shell-shaped dental appliance. The above film pressing system can produce an ideal shell-shaped dental appliance.
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Description

Technical Field

[0001] The present invention belongs to the technical field of the production of dental appliances, and more precisely relates to the manufacturing technology of shell-shaped dental appliances, and particularly relates to a thermoforming system. Background Art

[0002] In the invisible orthodontic technology of correcting teeth by wearing shell-shaped dental appliances, since the appliances are comfortable to wear, removable, and aesthetic, more and more people choose them. In the technology of preparing shell-shaped dental appliances, one preparation method is to first prepare a solid dental cast, and then form a shell-shaped dental appliance containing the tooth shape on the solid dental cast by thermoforming a membrane sheet. After that, a shell-shaped dental appliance capable of accommodating teeth is obtained by cutting, and then the shell-shaped dental appliance is subjected to processes such as cleaning, disinfection, packaging, and distribution, so that the patient can directly wear and use it.

[0003] An existing multi-station dental thermoforming machine uses an automatic feeding, heating, pressurizing, and automatic discharging method. The problem of this thermoforming machine is that the various processing steps are relatively independent, and there is no automatic connection of all processing steps, which cannot meet the requirements of multi-thermoforming quantity and fast production rhythm, and cannot meet the requirements of large-scale automated production.

[0004] Therefore, it is of great significance to study how to improve the working efficiency of the thermoforming machine to efficiently produce shell-shaped dental appliances. Summary of the Invention

[0005] The main object of the present invention is to overcome the defects of the prior art and provide a thermoforming system for pressing a membrane sheet on a dental cast to form a shell-shaped dental appliance, so as to solve the problem that the existing thermoforming machine cannot efficiently produce shell-shaped dental appliances.

[0006] The technical solution provided by the present invention is as follows:

[0007] A thermoforming system for pressing a membrane sheet on a dental cast to form a shell-shaped dental appliance, comprising: a control device, a transfer device, a feeding device, a membrane matching device, a preheating device, a heating device, and a thermoforming device, wherein the transfer device, the feeding device, the membrane matching device, the preheating device, the heating device, and the thermoforming device are respectively communicatively connected to the control device; wherein, the transfer device is controlled by the control device to transfer, so that the dental cast sequentially circulates between a membrane matching station, a preheating station, a heating station, and a thermoforming station;

[0008] The membrane matching device is arranged at the membrane matching station, configures a membrane sheet with corresponding parameters for the dental cast transferred to the membrane matching station onto the transfer device, and the membrane sheet is placed above the crown side of the dental cast;

[0009] The preheating device is arranged at the preheating station, and performs preheating treatment on the membrane above the dental model transferred to the preheating station through the transfer device according to the preheating parameters;

[0010] The heating device is arranged at the corresponding heating station, and performs heating treatment on the membrane above the dental model transferred to the heating station according to the heating parameters;

[0011] The laminating device is arranged at the laminating station, and presses the film sheet after it is transferred to the laminating station and heated, so that the film sheet is pressed on the dental model to form a shell-shaped dental appliance;

[0012] The control device controls the movement of the transport device to transport the dental model to the film fitting station, and controls the film fitting device to configure a film with corresponding parameters for the dental model on the film fitting station; after the configuration is completed, the control device controls the movement of the transport device to transport the dental model and the film with corresponding parameters to the preheating station, and controls the preheating device at the preheating station to preheat the film according to the preheating parameters; when the film is transported to the heating station after the preheating is completed, the control device controls the heating device to heat the film according to the heating parameters; after the heating is completed, the control device controls the transport device to continue to move to transport the dental model and the heated film to the lamination station, and presses the heated film onto the dental model according to the corresponding lamination parameters to form a shell-shaped dental appliance.

[0013] Preferably, the preheating station includes at least one first preheating station, the preheating device includes at least one first preheating device, each of the first preheating stations is respectively provided with a first preheating device, and the first preheating device is used to preheat the membrane above the dental model that flows to the first preheating station according to the first preheating parameters.

[0014] Preferably, the preheating station includes at least one second preheating station, which is arranged along the flow direction of the dental model, and the second preheating station is located after the first preheating station. The preheating device includes at least one second preheating device, and each second preheating station is respectively provided with a second preheating device, and the second preheating device is used to preheat the membrane above the dental model flowing to the second preheating station according to a second preheating parameter.

[0015] Preferably, the preheating temperature applied to the diaphragm by the second preheating device is greater than the preheating temperature applied to the diaphragm by the first preheating device.

[0016] Preferably, the preheating device includes a liftable preheating part, and the preheating device changes the preheating temperature applied to the diaphragm by changing the distance between the preheating part and the diaphragm;

[0017] The heating device includes a liftable heating part, and the heating device changes the heating temperature applied to the diaphragm by changing the distance between the heating part and the diaphragm.

[0018] Preferably, the preheating device further includes a preheating lifting mechanism connected to the preheating part. The preheating part and the preheating lifting mechanism are respectively communicatively connected to the control device. The control device controls the lifting of the preheating lifting mechanism and drives the preheating part to lift, further controlling the preheating part to preheat the diaphragm;

[0019] And the heating device further includes a heating lifting mechanism connected to the heating part. The heating part and the heating lifting mechanism are respectively communicatively connected to the control device. The control device controls the lifting of the heating lifting mechanism and drives the heating part to lift, further controlling the heating part to heat the diaphragm.

[0020] Preferably, the transfer device includes a transfer disk and a plurality of carrier mechanisms. The plurality of carrier mechanisms are arranged at intervals along the circumference of the transfer disk. The carrier mechanism is used to carry the dental model and the diaphragm. The control device controls the operation of the transfer disk so that the carrier mechanism reciprocates between preset stations; the preset stations further include a loading station before the film matching station and an unloading station after the film pressing station.

[0021] Preferably, the transfer disk has a plurality of first mounting holes penetrating through the upper and lower surfaces. The carrier mechanism includes: a tooth mold mounting seat, a floating bottom plate, a floating shaft, a limiting post, and a tooth mold tray;

[0022] The tooth mold mounting seat is fixed on the top surface of the transfer disk. The tooth mold mounting seat has a receiving hole penetrating through the upper and lower parts and communicating with one of the first mounting holes of the transfer disk; the top surface of the floating bottom plate is used to carry the dental model, and the floating bottom plate is liftably received in the receiving hole of the tooth mold mounting seat; both ends of the floating shaft are respectively connected to the bottom surface of the floating bottom plate and the tooth mold tray, and the floating shaft liftably passes through the first mounting hole of the transfer disk; the top end of the limiting post is fixed on the bottom surface of the transfer disk, the tooth mold tray has a limiting hole, and the limiting post passes through the limiting hole of the tooth mold tray. The tooth mold tray lifts under the guiding action of the limiting post and the limiting hole of the tooth mold tray.

[0023] Preferably, the carrier mechanism includes a plurality of limiting posts, and the tooth mold tray has a plurality of limiting holes arranged at intervals along the circumference. Each limiting post respectively passes through one of the limiting holes of the tooth mold tray.

[0024] Preferably, the floating bottom plate is located above the transfer tray, and the diameter of the floating bottom plate is larger than the diameter of the first mounting hole of the transfer tray.

[0025] Preferably, it further includes a first lifting mechanism located at the film pressing station. The first lifting mechanism is located below the transfer tray and is communicatively connected to the control device. The film pressing device includes: an air valve, a pressing head, and a pressing head lifting mechanism connecting the pressing head. The pressing head is located above the transfer tray, and the air valve and the pressing head lifting mechanism are respectively communicatively connected to the control device;

[0026] The control device controls the first lifting mechanism to lift the dental mold tray and drive the floating shaft, the floating bottom plate, and the dental model on the floating bottom plate to rise. At the same time, the control device controls the movement of the pressing head lifting mechanism and drives the pressing head to press the film sheet tightly on the floating bottom plate and cover the dental model. The pressing head and the floating bottom plate form a sealed space accommodating the dental model. The control device controls the air valve to ventilate the sealed space so that the film sheet is pressed on the dental model to form a shell-shaped dental appliance.

[0027] Preferably, the transfer tray has a plurality of second mounting holes penetrating through the upper and lower surfaces. The transfer device further includes a plurality of clamping mechanisms. The clamping mechanism includes: a clamping member and two sets of guiding components. The guiding component includes: a shaft seat, a guiding shaft, and an elastic member;

[0028] The shaft seats of the two sets of guiding components are respectively located on the opposite sides of the carrier mechanism and fixed on the top surface of the transfer tray. The shaft seat has a shaft hole penetrating through the upper and lower parts and communicating with a second mounting hole of the transfer tray; the guiding shaft is liftably passed through the shaft hole of the shaft seat and the second mounting hole of the transfer tray. The top end of the guiding shaft is connected to the clamping member. The clamping member is located above the dental mold mounting seat. The elastic force of the elastic member acts on the guiding shaft to make the guiding shaft have a downward trend, and the film sheet is clamped on the dental mold mounting seat through the clamping member.

[0029] Preferably, the bottom end of the guiding shaft has an abutting portion. The elastic member is a compression spring. The compression spring is sleeved outside the guiding shaft. The two ends of the compression spring respectively abut against the bottom surface of the transfer tray and the abutting portion of the guiding shaft to make the guiding shaft have a downward trend.

[0030] Preferably, the clamping member has a notch. The notch of the clamping member is used for the film sheet to pass through and be placed on the dental mold mounting seat.

[0031] Preferably, the clamping member has an annular pressing portion and two mounting portions connecting the annular pressing portion. The two mounting portions are respectively located on opposite sides of the annular pressing portion. The mounting portions are used to connect the top ends of the guiding shafts, and the annular pressing portion is used to press the diaphragm against the tooth mold mounting seat. The notch is formed on the annular pressing portion of the clamping member.

[0032] Preferably, the transfer device further includes a second lifting mechanism located at the film matching station. The second lifting mechanism is located below the transfer disk and is communicatively connected to the control device. The control device controls the second lifting mechanism to lift the guiding shaft so that the clamping member rises and moves away from the tooth mold mounting seat and a distance is generated between them. After the diaphragm is placed above one side of the dental arch model crown, the second lifting mechanism resets and clamps the diaphragm on the tooth mold mounting seat through the clamping member.

[0033] Preferably, the transfer device further includes a third lifting mechanism located at the blanking station. The third lifting mechanism is located below the transfer disk and is communicatively connected to the control device. The control device controls the third lifting mechanism to lift the guiding shaft so that the clamping member rises and moves away from the tooth mold mounting seat and a distance is generated between them. At the same time, the control device controls the blanking device to transfer the dental arch model with the shell-shaped tooth orthosis after film pressing to the next process.

[0034] Preferably, a loading device is arranged at the loading station. The loading device is communicatively connected to the control device. The control device controls the loading device to place the dental arch model from the loading line to the loading station of the transfer device, and further controls the transfer device to transfer the dental arch model to the film matching station.

[0035] Preferably, a blanking device is arranged at the blanking station. The blanking device is communicatively connected to the control device. The control device controls the blanking device to transfer the dental arch model with the shell-shaped tooth orthosis at the blanking station to the next process.

[0036] Preferably, the loading station is reused as the blanking station, and the loading device is reused as the blanking device.

[0037] Preferably, it further includes a carrier and an information recognition device. The carrier is used to carry the dental model, and the loading device transports the dental model on the carrier to the transfer device. The information recognition device is communicatively connected to the control device. The information recognition device is used to obtain the placement position information of the dental model on the carrier, and the control device controls and adjusts the picking posture of the loading device according to the placement position information of the dental model read by the information recognition device, so that the loading device picks up the dental model by adjusting the picking posture of the manipulator relative to the dental model.

[0038] Preferably, it further includes a loading line. The loading line includes a conveyor line and a pusher mechanism. The conveyor line is used to transport the dental model, and the pusher mechanism and the carrier are respectively located on opposite sides of the conveyor line. The pusher mechanism is used to push the dental model on the conveyor line onto the carrier.

[0039] Preferably, a plurality of identification members are provided on the conveyor line. Each identification member is adjacent to a dental model on the conveyor line. The loading line further includes a proximity detector communicatively connected to the control device. The proximity detector is used to detect whether the identification member on the conveyor line approaches the proximity detector. The control device is communicatively connected to the pusher mechanism. When the proximity detector detects that the identification member on the conveyor line approaches the proximity detector, the control device controls the pusher mechanism to push the dental model adjacent to the identification member on the conveyor line onto the carrier.

[0040] Preferably, the pusher mechanism includes a push block and a push block driving part connecting the push block. The push block driving part is communicatively connected to the control device. When the proximity detector detects that the identification member on the conveyor line approaches the proximity detector, the control device controls the push block driving part to drive the push block to move so as to push the dental model adjacent to the identification member on the conveyor line onto the carrier.

[0041] Preferably, the information recognition device includes a camera and a camera driving part connected to the camera. The camera and the camera driving part are communicatively connected to the control device. When the carrier carries a dental model, the control device controls the camera driving part to move so that the camera moves above the carrier, and controls the camera to take a picture of the dental model on the carrier. After the picture taking is completed, the control device controls the camera driving part to move so that the camera resets.

[0042] Preferably, the information identification device also includes a light source communicatively connected to the control device, the support platform is a light-transmitting support platform, and the light source is located below the support platform. When the camera takes a picture of the dental model on the support platform, the control device controls the light source to turn on to illuminate the dental model on the support platform.

[0043] Preferably, the information identification device is also used to obtain an information identifier set on the dental model to determine the identity of the dental model. The control device obtains the preheating parameters and controls the preheating device to preheat the diaphragm according to the identity identification information corresponding to the information identifier of the dental model, obtains the heating parameters and controls the heating device to heat the diaphragm, and controls the lamination device to press the diaphragm according to the lamination process parameters to form the shell-shaped dental appliance.

[0044] Preferably, the feeding device comprises: a first mechanical arm, a first suction cup driving unit and a tooth mold suction cup respectively connected to the control device for communication, wherein the first suction cup driving unit is respectively connected to the first mechanical arm and the tooth mold suction cup and drives the tooth mold suction cup to move;

[0045] The control device controls the movement of the first robot arm and drives the first suction cup driving unit and the tooth model suction cup to move above the supporting platform. The control device controls and adjusts the picking posture of the first suction cup driving unit and the tooth model suction cup according to the placement position information of the dental model identified by the information identification device, and controls the tooth model suction cup to absorb the dental model from the supporting platform and place it on the transfer device.

[0046] Preferably, the film fitting device comprises a film fitting mechanism and a film fitting machine, wherein the film fitting mechanism is used to obtain a film sheet from the film fitting machine and place the film sheet above one side of the crown of the dental model;

[0047] The film fitting mechanism includes: a first film suction cup, a second film suction cup and a third film suction cup, the first film suction cup, the second film suction cup and the third film suction cup are used to absorb the same film, the first film suction cup and the third film suction cup can be synchronously raised and lowered and are respectively located on opposite sides of the second film suction cup.

[0048] Preferably, the film fitting mechanism further includes: a second suction cup driving unit, the control device is respectively connected to the first film suction cup, the second film suction cup, the third film suction cup, and the second suction cup driving unit, and the second suction cup driving unit is respectively connected to the first film suction cup and the third film suction cup to drive the first film suction cup and the third film suction cup to rise and fall;

[0049] The control device controls the first diaphragm suction cup, the second diaphragm suction cup, and the third diaphragm suction cup to adsorb the same diaphragm, and controls the second suction cup driving part to rise and drive the first diaphragm suction cup and the third diaphragm suction cup to rise; when the first diaphragm suction cup, the second diaphragm suction cup, and the third diaphragm suction cup move to the blanking position of the diaphragm, the control device controls the first diaphragm suction cup, the second diaphragm suction cup, and the third diaphragm suction cup to place the diaphragm above one side of the dental crown of the dental model.

[0050] Preferably, the second suction cup driving part has a U-shaped structure part, the first diaphragm suction cup and the third diaphragm suction cup are respectively connected to the two side parts of the U-shaped structure, and the second diaphragm suction cup passes through the middle notch of the U-shaped structure part of the second suction cup driving part.

[0051] Preferably, the diaphragm matching machine includes: a box body, a pushing and pulling mechanism, and a diaphragm holding mechanism. The pushing and pulling mechanism is arranged on the box body, and the diaphragm holding mechanism is arranged on the pushing and pulling mechanism; the box body has an opening at the top.

[0052] The pushing and pulling mechanism includes a lower bottom plate, an upper table plate, and a diaphragm protection cover. The upper table plate is installed above the lower bottom plate and closes at least part of the top opening of the box body. The upper table plate is provided with a through hole for the diaphragm holding mechanism to pass through. The diaphragm protection cover has a top opening for the diaphragm holding mechanism to pass through and covers the upper table plate.

[0053] The diaphragm holding mechanism is used for holding the diaphragm. The diaphragm holding mechanism detachably passes through the top opening of the diaphragm protection cover and the through hole of the upper table plate and is supported on the lower bottom plate.

[0054] Preferably, a heating and dehumidifying device is further arranged in the diaphragm matching machine. The heating and dehumidifying device is arranged in the box body and is used for blowing dry hot gas into the box body to adjust the temperature and humidity in the box body.

[0055] Preferably, the box body further includes a guide rail arranged in the box body, and the pushing and pulling mechanism further includes a slider slidably arranged on the guide rail. The lower bottom plate is arranged on the slider.

[0056] The side wall of the box body has a side opening. With the cooperation of the guide rail and the slider, at least part of the pushing and pulling mechanism can move in the direction of the guide rail through the side opening of the box body and move outwards from the inside of the box body or move inwards from the outside of the box body.

[0057] Preferably, a sliding support is provided on the side wall of the box body with a side opening, and the sliding support is adjacent to the side opening of the box body. When the push-pull mechanism moves outward from the box body or inward from the box body, the upper platform is slidably supported on the sliding support.

[0058] Preferably, a stopper is provided on the upper platform, and a first limit buffer is provided on the side wall of the box body with a side opening, and the first limit buffer is used to abut against the stopper to prevent the push-pull mechanism from continuing to move outward after part of the push-pull mechanism moves outward from the box body.

[0059] Preferably, a second position-limiting buffer is further provided in the box body, and the second position-limiting buffer is used to abut against the lower bottom plate to prevent the push-pull mechanism from continuing to move inward when the push-pull mechanism moves inward from outside the box body to a specified position.

[0060] Preferably, the film dispensing machine further comprises a lifting mechanism located below the film holding mechanism, and the lifting mechanism is used to lift the film held by the film holding mechanism so that the uppermost film held by the film holding mechanism has a specified height.

[0061] Preferably, the bottom of the diaphragm holding mechanism has a hollow structure, and the lower bottom plate is provided with a avoidance hole located below the diaphragm holding mechanism, the avoidance hole passes through the upper and lower surfaces of the lower bottom plate, the diaphragm holding mechanism is supported on the outer periphery of the avoidance hole of the lower bottom plate, and the lifting surface of the lifting mechanism passes through the avoidance hole of the lower bottom plate and the inner hole of the hollow structure at the bottom of the diaphragm holding mechanism from below the lower bottom plate to lift the diaphragm in the diaphragm holding mechanism.

[0062] The present invention provides a lamination system based on a shell-shaped dental appliance, which can bring at least one of the following beneficial effects:

[0063] In the film pressing system of the dental model of the present invention, a control device, a transfer device, a loading device, a film preparation device, a preheating device, a heating device, a film pressing device and a feeding device are arranged, and the operation of each device is controlled by the control device. The transfer device transfers the dental model according to a preset work station, and the dental model completes the loading of the dental model, the film preparation, the preheating of the film, the heating of the film, the pressing of the film and the transfer of the dental model with a shell-shaped dental appliance at each preset work station, and finally the film is pressed on the dental model to form a shell-shaped dental appliance. The processing steps are closely connected, which can meet the requirements of a large number of film pressings and fast-beat production, and can significantly improve the work efficiency of film pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] The preferred embodiments will be described below in a clear and understandable manner in conjunction with the accompanying drawings to further illustrate the above characteristics, technical features, advantages and their implementation manners.

[0065] Figure 1 Schematic diagram of the principle of the film pressing system provided by the embodiment of the present invention;

[0066] Figure 2 Schematic diagram of the structure of the film pressing system provided by the embodiment of the present invention;

[0067] Figure 3 Schematic diagram of the structure of the transfer device with some external structures omitted provided by the embodiment of the present invention;

[0068] Figure 4 is Figure 3 The enlarged view of part S1 in, wherein part S11 is the part with the structure of the transfer disk omitted;

[0069] Figure 5 Schematic diagram of the structure of the carrier mechanism provided by the embodiment of the present invention;

[0070] Figure 6 Front view of the carrier mechanism provided by the embodiment of the present invention;

[0071] Figure 7 is Figure 6 The cross-sectional schematic diagram along line AA in;

[0072] Figure 8 Schematic diagram of the structure of the loading line, unloading line and loading device provided by the embodiment of the present invention;

[0073] Figure 9 Schematic diagram of the structure of the information recognition device provided by the embodiment of the present invention;

[0074] Figure 10 Schematic diagram of the structure of the clamping mechanism provided by the embodiment of the present invention;

[0075] Figure 11 Schematic diagram of the structure of the clamping mechanism when a diaphragm is placed;

[0076] Figure 12 Schematic diagram of the structure of the film matching machine provided by the present invention;

[0077] Figure 13 Schematic diagram of the structure of the film matching machine with some external structures omitted provided by the present invention, wherein part S3 is the part with the structure of the box omitted;

[0078] Figure 14 is Figure 13 The enlarged view of part S2 in;

[0079] Figure 15 Schematic structural diagram of the external structure of the box body provided by the present invention, where the S4 part and the S5 part are parts of the box body structure of the omitted part;

[0080] Figure 16 Schematic structural diagram of the push-pull mechanism provided by the present invention;

[0081] Figure 17 Schematic structural diagram of the lower bottom plate and the upper table plate provided by the present invention supported on the guide rail;

[0082] Figure 18 Schematic structural diagram of the lower bottom plate and the upper table plate supported on the guide rail and the first limit buffer provided by the present invention;

[0083] Figure 19 Schematic structural diagram of the diaphragm storage mechanism provided by the present invention;

[0084] Figure 20 Schematic structural diagram of the lifting mechanism provided by the present invention;

[0085] Figure 21 Schematic structural diagram of the film matching mechanism provided by the embodiment of the present invention;

[0086] Figure 22 Schematic structural diagram of the second suction cup driving part, the first diaphragm suction cup, the second diaphragm suction cup and the third diaphragm suction cup of the film matching mechanism provided by the embodiment of the present invention;

[0087] Figure 23 Schematic structural diagram of the preheating device and the heating device provided by the embodiment of the present invention;

[0088] Figure 24 Schematic structural diagram of the heating device provided by the embodiment of the present invention;

[0089] Figure 25 Schematic structural diagram of the film pressing device provided by the embodiment of the present invention;

[0090] Figure 26 Schematic diagram before the film pressing device and the third lifting mechanism provided by the embodiment of the present invention cooperate to press the film on the carrier mechanism;

[0091] Figure 27 is Figure 26 Schematic diagram after the third lifting mechanism in [[ ]] is lifted;

[0092] Figure 28 Schematic diagram when the film pressing device and the third lifting mechanism provided by the embodiment of the present invention cooperate to press the film on the carrier mechanism;

[0093] Figure 29Schematic flowchart of a film pressing system for pressing a film provided by an embodiment of the present invention. Detailed implementation manners

[0094] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings and other implementation manners can also be obtained.

[0095] Refer to Figures 1 to 28 , an embodiment of the present invention provides a film pressing system 1 for pressing a film 2 onto a dental model to form a shell-shaped tooth orthodontic appliance. The film pressing system 1 includes: a control device 10, a transfer device 20, a loading device 30, a film matching device, a preheating device 51, a heating device 52, a film pressing device 60, and a blanking device. Further, it also includes a loading line 80, an information recognition device 90, and a blanking line 100.

[0096] Refer to Figure 1 , the transfer device 20, the loading device 30, the film matching device, the preheating device 51, the heating device 52, the film pressing device 60, the blanking device, the loading line 80, the information recognition device 90, and the blanking line 100 can be respectively communicatively connected to the control device 10. The control device 10 controls the orderly operation of each device in the film pressing system 1, and forms a shell-shaped tooth orthodontic appliance by pressing the film 2 onto the dental model, thereby realizing the preparation of the shell-shaped tooth orthodontic appliance.

[0097] The control device 10 can be any applicable computing device, such as a personal computer, a server, a programmable logic controller (PLC controller for short), a single-chip microcomputer, etc. It can also be an integration of computer devices. The control device 10 has functions such as receiving information and sending control commands. The control device 10 can control each device to perform corresponding actions through wired communication or wireless communication to complete the preparation of the shell-shaped tooth orthodontic appliance.

[0098] A loading station, a film matching station, a preheating station, a heating station, a film pressing station, and a blanking station are sequentially arranged along the transfer device 20. Among them, the loading device 30 is arranged at the loading station, the film matching device is arranged at the film matching station, the preheating device 51 is arranged at the preheating station, the heating device 52 is arranged at the heating station, the film pressing device 60 is arranged at the film pressing station, the blanking device is arranged at the blanking station, and the film matching device includes a film matching machine 70 and a film matching mechanism 40.

[0099] The control device 10 controls the transfer device 20 to sequentially transfer the dental model among the loading station, film matching station, preheating station, heating station, film pressing station and unloading station. The loading line 80 is used to convey the dental model, and the information recognition device 90 is used to obtain the placement position information of the conveyed dental model, and can also obtain the information identifier for determining the identity of the dental model. The loading device 30 is used to place the dental model on the transfer device 20. The film matching machine 70 is used to carry the film 2, and the film matching mechanism 40 is used to configure the film 2 with corresponding parameters for the dental model transferred to the film matching station onto the carrier mechanism 22 of the transfer device 20, and the film 2 is placed above the crown side of the dental model. The configured film 2 can be obtained from the film matching machine 70. The preheating device 51 performs preheating treatment on the film 2 above the dental model transferred to the preheating station according to the preheating parameters. The heating device 52 performs heating treatment on the film 2 above the dental model transferred to the heating station according to the heating parameters. The film pressing device 60 presses the film 2 after heating at the film pressing station to complete the thermoforming of the film 2 on the dental model, so that the film 2 is pressed on the dental model to form a shell-shaped dental appliance. The unloading device transfers the dental model with the shell-shaped dental appliance after film pressing at the unloading station to the next process.

[0100] The process of the film pressing system 1 pressing the film 2 on the dental model to form a shell-shaped dental appliance includes: the loading device 30 places the dental model on the loading station, the control device 10 controls the transfer device 20 to move to transfer the dental model to the film matching station, the control device 10 controls the film matching device to configure the film 2 with corresponding parameters for the dental model at the film matching station, the film 2 is placed above the crown side of the dental model, after configuration, the control device 10 controls the transfer device 20 to move to transfer the dental model and the film 2 with corresponding parameters to the preheating station, and controls the preheating device 51 to perform preheating treatment on the film 2 according to the preheating parameters at the preheating station; after preheating, it is transferred to the heating station, the control device 10 controls the heating device 52 to heat the film 2 according to the heating parameters, after heating, the transfer device 20 continues to move to transfer the dental model and the heated film 2 to the film pressing station, the control device 10 presses the heated film 2 on the dental model according to the corresponding film pressing parameters, after film pressing, the transfer device 20 continues to move to transfer the dental model with the shell-shaped dental appliance formed after film pressing to the unloading station, and the control device 10 controls the unloading device to transfer the dental model with the shell-shaped dental appliance to the next process. The unloading line 100 is used to convey the dental model with the shell-shaped dental appliance.

[0101] In some embodiments of the present invention, the loading station is reused as the unloading station, and the loading device 30 is reused as the unloading device. In other words, in the transfer device 20, the preset loading station and unloading station are the same station. The loading device 30 is used not only for placing the dental model on the transfer device 20, but also for transferring the dental model with the shell-shaped dental appliance after thermoforming to the next process when it reaches the unloading station.

[0102] The following will describe in detail the structures of the transfer device 20, the loading device 30, the film matching mechanism 40, the preheating device 51, the heating device 52, the thermoforming device 60, and the film matching machine 70 in the embodiments of the present invention with reference to the drawings.

[0103] Refer to Figure 3 , the transfer device 20 includes a transfer tray 21 and a plurality of carrier mechanisms 22. The transfer tray 21 has a circular or substantially circular structure. The transfer tray 21 is, for example, an indexing tray, and a loading station, a film matching station, a preheating station, a heating station, a thermoforming station, and an unloading station are sequentially provided along the circumferential direction of the transfer tray 21. The plurality of carrier mechanisms 22 are arranged at intervals along the periphery of the transfer tray 21. The carrier mechanisms 22 are arranged adjacent to the edge of the transfer tray 21, and the plurality of carrier mechanisms 22 are preferably arranged at equal intervals along the periphery of the transfer tray 21. The control device 10 controls the rotation of the transfer tray 21 so that the carrier mechanisms 22 reciprocate between the preset stations. Specifically, the transfer device 20 operates to make the carrier mechanisms 22 reciprocate in a cycle between the loading station, the film matching station, the preheating station, the heating station, the thermoforming station, and the unloading station.

[0104] The transfer device 20 may further include a transfer driving mechanism (not shown), and the transfer driving mechanism is used to drive the transfer tray 21 to rotate sequentially according to the preset stations. The transfer driving mechanism includes, for example, a cam divider (not shown) and a motor (not shown). Among them, the transfer tray 21 is connected to the output shaft of the cam divider, and the output shaft of the motor is connected to the input shaft of the cam divider to drive the cam divider to move. The cam divider is used to realize the intermittent rotation of the transfer tray 21, that is, to realize the cyclic rotation of the transfer tray 21 of rotation - stop - rotation - stop. When the transfer tray 21 rotates, the carrier mechanisms 22 sequentially flow between the preset stations. When the transfer tray 21 stops, operations such as film matching, preheating, heating, pressing of the film 2, and loading and unloading of the dental model can be performed.

[0105] The carrier mechanism 22 is used to carry the dental model and the film 2, and preheating, heating, and pressing of the film 2 are completed on the carrier mechanism 22. Refer to Figures 4 to 7 , the carrier mechanism 22 includes: a tooth mold mounting base 221, a floating bottom plate 222, a floating shaft 223, a limit post 224, and a tooth mold tray 225.

[0106] The transfer tray 21 has a plurality of first mounting holes (not shown) penetrating the upper and lower surfaces. The first mounting holes may be circular holes. The plurality of first mounting holes are arranged at intervals along the periphery of the transfer tray 21. The first mounting holes are arranged at the adjacent edge of the transfer tray 21, and are preferably arranged at equal intervals along the periphery of the transfer tray 21. The tooth mold mounting seat 221 is fixed on the top surface 21a of the transfer tray 21, for example, by screwing. The tooth mold mounting seat 221 has a receiving hole 221a penetrating from top to bottom and communicating with a first mounting hole of the transfer tray 21. The radial cross-sectional shape of the receiving hole 221a matches the shape of the floating bottom plate 222. The receiving hole 221a may be a circular hole. The floating bottom plate 222 is circular or substantially circular. The top surface of the floating bottom plate 222 is used to carry the dental model. The diameter of the floating bottom plate 222 may be slightly smaller than the inner diameter of the receiving hole 221a of the tooth mold mounting seat 221. The floating bottom plate 222 may be lifted and lowered and accommodated in the receiving hole 221a of the tooth mold mounting seat 221.

[0107] The floating shaft 223 can be cylindrical, and the outer diameter of the floating shaft 223 can be slightly smaller than the diameter of the first mounting hole. The two ends of the floating shaft 223 are respectively connected to the bottom surface of the floating bottom plate 222 and the tooth mold tray 225. The two ends of the floating shaft 223 respectively protrude from the upper and lower surfaces of the transfer plate 21. The floating shaft 223 can be raised and lowered through the first mounting hole of the transfer plate 21.

[0108] The limiting column 224 is roughly cylindrical, and the top end of the limiting column 224 is fixed on the bottom surface 21b of the transfer disk 21. The limiting column 224 extends downward from the bottom surface 21b of the transfer disk 21. The tooth mold tray 225 is located below the transfer disk 21. The tooth mold tray 225 has a limiting hole 225a. The tooth mold tray 225 is circular or roughly circular. The diameter of the tooth mold tray 225 is larger than the outer diameter of the floating shaft 223. The outer edge of the tooth mold tray 225 protrudes from the floating shaft 223. The limiting hole 225a is formed on the portion of the tooth mold tray 225 protruding from the floating shaft 223 adjacent to the outer edge.

[0109] The limiting column 224 passes through the limiting hole 225a of the tooth mold tray 225, and the limiting hole 225a is adapted to the radial cross-sectional shape of the limiting column 224. The tooth mold tray 225 rises and falls under the guidance of the limiting column 224 and the limiting hole 225a of the tooth mold tray 225. Specifically, when the tooth mold tray 225 is lifted by an external force, under the guidance of the limiting column 224 and the limiting hole 225a of the tooth mold tray 225, the tooth mold tray 225 moves upward, driving the floating shaft 223 and the floating bottom plate 222 to move upward, and the dental model on the floating bottom plate 222 moves upward at the same time. When the floating bottom plate 222 and the dental model rise, they can be used for film pressing operations.

[0110] Reference Figure 5, the vehicle mechanism 22 includes a plurality of limit posts 224, and the die tray 225 has a plurality of limit holes 225a spaced along the circumference. Each limit post 224 passes through a limit hole 225a of the die tray 225 respectively.

[0111] In some embodiments of the present invention, the floating bottom plate 222 is located above the transfer tray 21. The diameter of the floating bottom plate 222 is greater than the diameter of the first mounting hole of the transfer tray 21. The diameter of the floating bottom plate 222 can be slightly greater than the diameter of the first mounting hole of the transfer tray 21. The outer peripheral edge of the first mounting hole of the transfer tray 21 can prevent the floating bottom plate 222 from moving downward and disengaging from the receiving hole 221a of the die mounting seat 221.

[0112] In an alternative embodiment, a stop portion (not shown) is provided on the inner wall of the receiving hole 221a of the die mounting seat 221 adjacent to the lower end opening. The stop portion can be in an annular structure. The inner hole diameter of the stop portion can be slightly smaller than the diameter of the floating bottom plate 222. The stop portion is located below the floating bottom plate 222 to block the floating bottom plate 222 from descending, and can also prevent the floating bottom plate 222 from moving downward and disengaging from the receiving hole 221a of the die mounting seat 221.

[0113] Referring to Figure 4 、 Figure 10 and Figure 11 , the transfer device 20 further includes a plurality of clamping mechanisms 23. Each clamping mechanism 23 is provided corresponding to the vehicle mechanism 22 one by one. The clamping mechanism 23 includes: a clamping member 231 and two sets of guiding components. The guiding components include: a shaft seat 232, a guiding shaft 233, and an elastic member 234.

[0114] The transfer tray 21 has a plurality of second mounting holes (not shown) penetrating through the upper and lower surfaces. The second mounting holes can be round holes. On opposite sides of each vehicle mechanism 22 of the transfer tray 21, a second mounting hole can be respectively provided. The shaft seats 232 of the two sets of guiding components are respectively located on opposite sides of the vehicle mechanism 22 and fixed on the top surface 21a of the transfer tray 21. The shaft seats 232 can be fixed on the top surface 21a of the transfer tray 21 by screwing. The shaft seat 232 has a shaft hole penetrating through the upper and lower parts and communicating with a second mounting hole of the transfer tray 21. The shaft hole can be a round hole. The shaft hole of the shaft seat 232 and a second mounting hole of the transfer tray 21 can be coaxially arranged.

[0115] The guiding shaft 233 is generally cylindrical. The guiding shaft 233 passes through the shaft hole of the shaft seat 232 and the second mounting hole of the transfer plate 21 in a liftable manner. The top end of the guiding shaft 233 is connected to the clamping member 231. The top end of the guiding shaft 233 is fixedly connected to the clamping member 231 by screwing, for example. The clamping member 231 is located above the die mounting seat 221. The clamping member 231 has a generally annular pressing portion 2311 and two mounting portions 2312 connecting the annular pressing portion 2311. The two mounting portions 2312 are respectively located on opposite sides of the annular pressing portion 2311. The annular pressing portion 2311 is used to press the diaphragm 2 against the die mounting seat 221. The shape of the annular pressing portion 2311 matches the shape of the top end of the die mounting seat 221. The mounting portions 2312 are used to connect the top end of the guiding shaft 233. The clamping member 231 preferably has a notch 2313 formed on the annular pressing portion 2311 of the clamping member 231. The notch 2313 of the clamping member 231 is used for the diaphragm 2 to pass through and be placed on the die mounting seat 221.

[0116] The elastic force of the elastic member 234 acts on the guiding shaft 233 to make the guiding shaft 233 tend to descend, and clamp the diaphragm 2 on the die mounting seat 221 through the clamping member 231. Specifically, the bottom end of the guiding shaft 233 has an abutting portion 2331. The elastic member 234 is a compression spring. The compression spring is sleeved outside the guiding shaft 233. The two ends of the compression spring respectively abut against the bottom surface 21b of the transfer plate 21 and the abutting portion 2331 of the guiding shaft 233 to make the guiding shaft 233 tend to descend. When the bottom end of the guiding shaft 233 is jacked by an external force, the guiding shaft 233 drives the clamping member 231 to move upward, the compression spring is compressed, and a gap is generated between the clamping member 231 and the top end of the die mounting seat 221. The diaphragm 2 can be placed between the clamping member 231 and the top end of the die mounting seat 221 through the notch 2313 of the clamping member 231. When the external force jacking the bottom end of the guiding shaft 233 disappears, under the action of the compression spring, the guiding shaft 233 drives the clamping member 231 to move downward, and the diaphragm 2 is clamped between the clamping member 231 and the top end of the die mounting seat 221.

[0117] Refer to Figure 3 , the transfer device 20 further includes a second jacking mechanism 25 located at the film matching station. The second jacking mechanism 25 is located below the transfer plate 21 and is communicatively connected to the control device 10. The control device 10 controls the second jacking mechanism 25 to jack the guiding shaft 233 of the clamping mechanism 23 to make the clamping member 231 rise and move away from the die mounting seat 221 and generate a distance from the die mounting seat 221. After the diaphragm 2 is placed above one side of the dental crown of the dental model, the second jacking mechanism 25 resets, and clamps the diaphragm 2 on the die mounting seat 221 through the clamping member 231.

[0118] Refer to Figure 2 andFigure 9 The film pressing system 1 further includes a carrier 83 and an information recognition device 90. The carrier 83 is used to carry the dental model, and the loading device 30 transports the dental model obtained from the carrier 83 to the transfer device 20. The information recognition device 90 is communicatively connected to the control device 10. The information recognition device 90 is used to obtain the placement position information of the dental model on the carrier 83. The information recognition device 90 is, for example, a CCD digital image acquisition device. The control device 10 controls and adjusts the picking posture of the loading device 30 according to the placement position information of the dental model obtained by the information recognition device 90, so that the loading device 30 picks up the dental model by adjusting the picking posture of the manipulator relative to the dental model. Through the information recognition device 90, the loading device 30 can accurately obtain the dental model from the carrier 83.

[0119] In some embodiments of the present invention, the information recognition device 90 is further used to recognize the information identifier set on the dental model to determine the identity of the dental model. The information identifier may be a string of information formed by letters, numbers or a combination thereof set on the dental model. The control device 10 obtains the preheating parameters according to the identity identifier information corresponding to the information identifier of the dental model identity obtained, and controls the preheating device 51 to preheat the diaphragm 2, obtains the heating parameters and controls the heating device 52 to heat the diaphragm 2, and controls the film pressing device 60 to press the diaphragm 2 according to the film pressing process parameters to form a shell-shaped tooth orthosis. The dental model is prepared by doctors and medical designers according to the patient's demands and oral conditions. There are individual differences in the oral conditions and orthodontic needs of different patients, and the prepared dental models are also personalized products. There are also differences in the diaphragms 2 used for thermoforming. After the dental model transported to the carrier 83 is identified, the individual dental model needs to be associated with the relevant case information of the patient, and the diaphragm 2 and the personalized processing parameters of the diaphragm 2 corresponding to the individual dental model, such as preheating parameters, heating parameters, pressing parameters, etc., are obtained from the pre-stored parameter data before subsequent personalized processing can be carried out. Therefore, by obtaining the information identifier of the dental model identity through the information recognition device 90 and communicating with the upper-layer database, the processing parameters of the diaphragm 2 corresponding to the dental model can be obtained, which is convenient for subsequent personalized processing.

[0120] In some embodiments of the present invention, referring to Figure 9, the information recognition device 90 is adjacent to the feeding device 30. The information recognition device 90 is arranged above the carrier 83 through a bracket. The information recognition device 90 includes a camera 91 and a camera driving part 92 connected to the camera 91. The camera 91 and the camera driving part 92 are communicatively connected to the control device 10. When the carrier 83 carries a dental model, the control device 10 controls the movement of the camera driving part 92 to move the camera 91 above the carrier 83, and controls the camera 91 to take a picture of the dental model on the carrier 83. After the picture taking is completed, the control device 10 controls the movement of the camera driving part 92 to reset the camera 91. After the camera 91 is reset, it can avoid the feeding device 30, facilitating the feeding device 30 to obtain the dental model from the carrier 83.

[0121] In some embodiments of the present invention, the information recognition device 90 further includes a light source (not shown) communicatively connected to the control device 10. The carrier 83 is a light-transmitting carrier 83, for example, made of glass. The light source is located below the carrier 83. When the camera 91 takes a picture of the dental model on the carrier 83, the control device 10 controls to turn on the light source to illuminate the dental model on the carrier 83. Under the illumination of the light source, the camera 91 can obtain a clear picture of the dental model, and thus accurately obtain the accurate position of the dental model and the information identifier for determining the identity of the dental model.

[0122] Referring to Figure 8 , the feeding device 30 is used to place the dental model on the transfer device 20 and transfer the dental model with the shell-shaped tooth orthosis after the laminating is completed to the next process at the discharging station. The feeding device 30 includes a first robotic arm 31, a first suction cup driving part 32, and a dental model suction cup 33. The first robotic arm 31, the first suction cup driving part 32, and the dental model suction cup 33 are respectively communicatively connected to the control device 10. The first suction cup driving part 32 is respectively connected to the first robotic arm 31 and the dental model suction cup 33, and drives the dental model suction cup 33 to move to the picking position to pick up the dental model and move to the placing position to place the dental model.

[0123] Specifically, the control device 10 controls the movement of the first robotic arm 31 and drives the first suction cup driving part 32 and the dental model suction cup 33 to move above the carrier 83. The control device 10 controls and adjusts the picking posture of the first suction cup driving part 32 and the dental model suction cup 33 according to the placement position information of the dental model obtained by the information recognition device 90, and controls the dental model suction cup 33 to adsorb the dental model from the carrier 83 and place it on the carrier mechanism 22 of the transfer device 20, completing the feeding of the dental model.

[0124] In some embodiments of the present invention, the preset workstations of the transfer device 20 include two adjacent loading workstations. The loading device 30 includes two first suction cup driving parts 32 and two tooth mold suction cups 33. The loading device 30 adsorbs two dental models at a time and places them on two carrier mechanisms 22 of the transfer device 20 respectively.

[0125] Referring to Figure 8 , the film pressing system 1 further includes a loading line 80. The loading line 80 includes a conveying line 81 and a pushing mechanism 82. The conveying line 81 is used for conveying dental models. The conveying line 81 can be a belt line. The pushing mechanism 82 and the bearing table 83 are respectively located on opposite sides of the conveying line 81. The pushing mechanism 82 is used to push the dental models on the conveying line 81 onto the bearing table 83.

[0126] Specifically, a plurality of identification members 811 are arranged on the conveying line 81. The plurality of identification members 811 can be a plurality of limiting bars arranged at equal intervals along the conveying direction of the conveying line 81. Each identification member 811 is adjacent to a dental model on the conveying line 81. A dental model can be placed between two adjacent identification members 811. The loading line 80 further includes a fourth proximity detector (not shown) communicatively connected to the control device 10. The fourth proximity detector can be a proximity sensor. The fourth proximity detector is used to detect whether the identification member 811 on the conveying line 81 approaches the fourth proximity detector. The fourth proximity detector can be arranged at a position adjacent to the end of the conveying line 81.

[0127] The pushing mechanism 82 includes a pushing block 821 and a pushing block driving part 822 connected to the pushing block 821. The pushing block 821 is adjacent to the conveying line 81 and can push the dental model on the conveying line 81 onto the bearing table 83 on the other side of the conveying line 81 under the action of the pushing block driving part 822. The pushing block driving part 822 is, for example, a pushing cylinder. The pushing block driving part 822 is communicatively connected to the control device 10. When the fourth proximity detector detects that the identification member 811 on the conveying line 81 approaches the fourth proximity detector, the control device 10 controls the pushing mechanism 82 to push the dental model adjacent to the identification member 811 on the conveying line 81 onto the bearing table 83. Specifically, the control device 10 controls the movement of the pushing block driving part 822 and drives the pushing block 821 to move towards the bearing table 83. The pushing block 821 pushes the dental model on the conveying line 81 onto the bearing table 83. Then, the pushing block driving part 822 drives the pushing block 821 to move in the opposite direction, and the pushing block 821 resets. The dental model is transferred from the conveying line 81 to the bearing table 83.

[0128] Referring to Figure 12 , the film matching machine 70 is used to provide the film sheet 2. The film matching machine 70 includes: a box body 71, a pushing and pulling mechanism 72, and a film sheet placing and holding mechanism 73. Among them, the pushing and pulling mechanism 72 is arranged on the box body 71, and the film sheet placing and holding mechanism 73 is arranged on the pushing and pulling mechanism 72.

[0129] Reference Figure 15 As shown in Figure 15 , the box body 71 is generally in the shape of a cuboid with a top opening 71a, and there is an accommodating space inside the box body 71.

[0130] Reference Figure 16 As shown in Figure 16 , the pushing and pulling mechanism 72 includes a lower bottom plate 721, an upper platform plate 722, and a diaphragm protection cover 723. The upper platform plate 722 is installed above the lower bottom plate 721 and closes at least part of the top opening 71a of the box body 71. The upper platform plate 722 can be installed above the lower bottom plate 721 through a plurality of support plates 7213 arranged on the opposite side edges of the lower bottom plate 721. The upper platform plate 722 closes at least part of the top opening 71a of the box body 71, so that a relatively sealed space is formed between the upper platform plate 722 and the box body 71. Reference Figure 17 and Figure 19 As shown in Figure 17 and Figure 19 , through holes 722a for the diaphragm accommodating mechanism 73 to pass through are provided on the upper platform plate 722. The shape of the through hole 722a of the upper platform plate 722 is adapted to the radial cross-sectional shape of the diaphragm accommodating mechanism 73. In this embodiment, a plurality of through holes 722a are provided on the upper platform plate 722 for a plurality of diaphragm accommodating mechanisms 73 to pass through respectively.

[0131] The diaphragm protection cover 723 has a top opening 723a for the diaphragm accommodating mechanism 73 to pass through and covers the upper platform plate 722. The shape of the top opening 723a of the diaphragm protection cover 723 is adapted to the radial cross-sectional shape of the diaphragm accommodating mechanism 73. In this embodiment, the diaphragm protection cover 723 has a plurality of top openings 723a for a plurality of diaphragm accommodating mechanisms 73 to pass through respectively. The diaphragm protection cover 723 is generally in the shape of a hollow cuboid and has a bottom opening. After the diaphragm protection cover 723 covers the upper platform plate 722, a accommodating space is formed between the diaphragm protection cover 723 and the top surface of the upper platform plate 722.

[0132] The diaphragm accommodating mechanism 73 is used to accommodate the diaphragm 2. The diaphragm accommodating mechanism 73 detachably passes through the top opening 723a of the diaphragm protection cover 723 and the through hole 722a of the upper platform plate 722 and is supported on the lower bottom plate 721. The film matching machine 70 of this embodiment includes a plurality of diaphragm accommodating mechanisms 73. Each diaphragm accommodating mechanism 73 passes through a top opening 723a of the diaphragm protection cover 723 and a through hole 722a of the upper platform plate 722 respectively and is supported on the lower bottom plate 721, so that enough diaphragms 2 and different types of diaphragms 2 can be placed on the film matching machine 70.

[0133] If the humidity in the environment where the diaphragm 2 is located is too high, the diaphragm 2 will absorb water, which will cause bubbles to be generated in the shell-shaped dental appliance during the film pressing process. In addition, bubbles will also be generated between the shell-shaped dental appliance formed after film pressing and the dental cast, resulting in an improper fit of the produced shell-shaped dental appliance, which is likely to cause a decrease in the correction force of the shell-shaped dental appliance and fail to achieve the ideal correction effect.

[0134] In the film matching machine 70 of the present invention, after the film holding mechanism 73 containing the film 2 is installed on the push-pull mechanism 72, the film holding mechanism 73 closes the top opening 723a of the film protection cover 723 and the through hole 722a of the upper platen 722. A relatively enclosed space is formed between the top surface of the film protection cover 723 and the upper platen 722, and a relatively enclosed space is formed between the upper platen 722 and the box body 71. The above structure reduces the air circulation inside and outside the film matching machine 70, which is beneficial to forming a constant temperature and humidity environment in the film matching machine 70, improves the stability of the film 2 during storage, reduces the generation of bubbles on the shell-shaped tooth aligner, and is beneficial to preparing an ideal shell-shaped tooth aligner.

[0135] Referring to Figure 13 , the film matching machine 70 further includes a heating and dehumidifying device 74. The heating and dehumidifying device 74 is arranged inside the box body 71. The heating and dehumidifying device 74 adjusts the temperature and humidity inside the box body 71 by blowing dry hot gas into the box body 71. The film matching machine 70 of this embodiment includes a plurality of heating and dehumidifying devices 74 arranged at different positions inside the box body 71, making the temperature distribution inside the box body 71 more uniform. The heating and dehumidifying device 74 can be communicatively connected to the control device 10, and the operation of the heating and dehumidifying device 74 is controlled by the control device 10.

[0136] The film matching machine 70 may further include a temperature and humidity detector (not shown) for detecting the temperature and humidity inside the box body 71. The temperature and humidity detector can be arranged inside the box body 71. The control device 10 can be communicatively connected to the temperature and humidity detector to obtain the detection results of the temperature and humidity inside the box body 71. The heating and dehumidifying device 74 operates selectively according to the detection results of the temperature and humidity detector and the set values of the temperature and humidity inside the box body 71. Specifically, when the temperature and humidity detector detects that the temperature inside the box body 71 is lower than the set temperature range, the control device 10 controls the heating and dehumidifying device 74 to increase the amount or temperature of the blown hot gas; when the temperature and humidity detector detects that the temperature inside the box body 71 is within the set temperature range, the control device 10 controls the heating and dehumidifying device 74 to stop or reduce the amount of the blown hot gas or lower the temperature of the blown hot gas; by controlling and adjusting the temperature and volume of the dry hot gas blown into the box body 71 and discharging the wet air inside the box body 71, the humidity inside the film matching machine 70 can be maintained within the set range.

[0137] Referring to Figure 15 and Figure 17 , a guide rail 711 for slidably supporting the push-pull mechanism 72 is further arranged inside the box body 71. The guide rail 711 is horizontally arranged and extends along the length direction of the box body 71. The guide rail 711 has a certain distance from both the top and the bottom of the box body 71. Referring to Figure 15, the box body 71 further includes a plurality of support columns 712 and guide rail support blocks 713. The plurality of support columns 712 are arranged inside the box body 71. The support columns 712 can be vertically and fixedly installed at the bottom of the box body 71. The guide rail support blocks 713 are installed on the plurality of support columns 712, and the guide rail 711 is installed on the guide rail support blocks 713.

[0138] Referring to Figure 16 , the push-pull mechanism 72 further includes a slider 724 slidably arranged on the guide rail 711. The guide rail 711 and the slider 724 can be provided with a matching chute and protrusion. The lower bottom plate 721 is arranged on the slider 724. Referring to Figure 15 , the side wall of the box body 71 has a side opening 71b. The side opening 71b of the box body 71 in this embodiment is adjacent to one end of the guide rail 711. The side opening 71b of the box body 71 allows the part below the upper table plate 722 of the push-pull mechanism 72 to pass through. With the cooperation of the guide rail 711 and the slider 724, at least part of the push-pull mechanism 72 can move through the side opening 71b of the box body 71 along the direction of the guide rail 711 and move outwards from the inside of the box body 71 or move inwards from outside the box body 71. A handle 7231 can be arranged on the top surface of the diaphragm protection cover 723. When the diaphragm 2 in the diaphragm storage mechanism 73 is used up, pull the handle 7231 to drive the push-pull mechanism 72 to move out of the box body 71. A part of the push-pull mechanism 72 passes through the side opening 71b of the box body 71 and moves out of the box body 71. Take out the diaphragm storage mechanism 73, put the diaphragm storage mechanism 73 filled with the diaphragm 2 back into the push-pull mechanism 72, pull the handle 7231 to drive the push-pull mechanism 72 to move into the box body 71, and the push-pull mechanism 72 passes through the side opening 71b of the box body 71 and returns to the inside of the box body 71 to complete the rapid loading of the diaphragm 2.

[0139] Referring to Figure 15 , a sliding support member 714 is arranged on the side wall of the box body 71 having the side opening 71b. The sliding support member 714 can be a support bearing. The sliding support member 714 is adjacent to the side opening 71b of the box body 71 and is preferably adjacent to the top opening 71a of the box body 71. During the process of the push-pull mechanism 72 moving outwards from the inside of the box body 71 or moving inwards from outside the box body 71, the upper table plate 722 is slidably supported on the sliding support member 714. During the movement of the push-pull mechanism 72, in addition to the support force provided by the guide rail 711, the sliding support member 714 can also provide a support force to make the movement of the push-pull mechanism 72 more stable. Preferably, two sliding support members 714 are arranged on the side wall of the box body 71 having the side opening 71b, and the two sliding support members 714 are respectively located on both sides of the side opening 71b of the box body 71.

[0140] Referring to Figure 15 and Figure 18, a stop block 7221 is provided on the upper platen 722, and a first limit buffer 715 is provided on the side wall of the box body 71 having a side opening 71b. In some embodiments of the present invention, the stop block 7221 is provided on the side surface of the upper platen 722, and the first limit buffer 715 is provided on the inner side of the side wall of the box body 71 having the side opening 71b. The first limit buffer 715 is used to abut against the stop block 7221 to block the further outward movement of the push-pull mechanism 72 after a part of the push-pull mechanism 72 moves outward from the box body 71. Through the limit cooperation of the stop block 7221 and the first limit buffer 715, the push-pull mechanism 72 has a fixed moving stroke, preventing the push-pull mechanism 72 from completely moving out of the box body 71 and falling off. Preferably, two first limit buffers 715 are provided on the side wall of the box body 71 having the side opening 71b, and the two first limit buffers 715 are respectively located on both sides of the side opening 71b of the box body 71.

[0141] Refer to Figure 15 and Figure 18 , a second limit buffer 716 is further provided in the box body 71. The second limit buffer 716 is used to abut against the lower bottom plate 721 to block the further inward movement of the push-pull mechanism 72 when the push-pull mechanism 72 moves inward from outside the box body 71 to a specified position. In some embodiments of the present invention, the second limit buffer 716 is adjacent to one end of the guide rail 711 facing away from the side opening 71b of the box body 71, and the second limit buffer 716 is used to abut against one end of the lower bottom plate 721 facing away from the side opening 71b of the box body 71. Through the limit cooperation of the second limit buffer 716 and the lower bottom plate 721, when the push-pull mechanism 72 moves into the box body 71 in place, the second limit buffer 716 plays a role of collision buffering for the push-pull mechanism 72, reducing the hard collision and vibration during the movement of the push-pull mechanism 72. Preferably, two second limit buffers 716 are provided in the box body 71, and the two second limit buffers 716 are respectively located on opposite sides of the guide rail.

[0142] Refer to Figure 18 , the push-pull mechanism 72 further includes a first proximity detector 725 provided on one side of the upper platen 722 facing away from the side opening 71b of the box body 71. The first proximity detector 725 is used to detect whether it is close to a marker to determine whether the push-pull mechanism 72 moves inward to a specified position. Specifically, the marker is, for example, a transfer device 20 for transferring the dental jaw model and the diaphragm 2. The transfer device 20 is adjacent to the film matching machine 70. The first proximity detector 725 can be a proximity sensor. The first proximity detector 725 is communicatively connected to the control device 10. When the first proximity detector 725 detects the proximity of the marker by induction, for example, the control device 10 controls the film pressing machine or the film matching machine 70 to perform subsequent actions.

[0143] Refer to Figure 14 and Figure 18, a first limiting portion 7212 is provided on the lower bottom plate 721, and a second limiting portion 717 is further provided in the box body 71. The second limiting portion 717 is, for example, provided at one end of the guide rail support block 713 facing away from the side opening 71b of the box body 71. When the first proximity detector 725 detects a proximity marker, the first limiting portion 7212 and the second limiting portion 717 cooperate to limit the movement of the pushing and pulling mechanism 72. Specifically, the first limiting portion 7212 may be a limiting hole 225a provided on the side of the lower bottom plate 721 facing away from the side opening 71b of the box body 71, and the second limiting portion 717 is a limiting post 224 that can be inserted into the limiting hole 225a under the driving action; or, the second limiting portion 717 may be the limiting hole 225a, and the first limiting portion 7212 is a limiting post 224 provided on the side of the lower bottom plate 721 facing away from the side opening 71b of the box body 71 that can be inserted into the limiting hole 225a under the driving action. Figure 14 Among them, the first limiting portion 7212 is the limiting hole 225a, and the second limiting portion 717 is a limiting post 224 driven by a cylinder. The cylinder is communicatively connected to the control device 10. During the process of pushing the pushing and pulling mechanism 72 into the box body 71, when the first proximity detector 725 detects a proximity marker, the control device 10 controls the cylinder to insert the limiting post 224 into the limiting hole 225a of the lower bottom plate 721, and the pushing and pulling mechanism 72 moves into place and cannot move further.

[0144] Refer to Figure 16 , the pushing and pulling mechanism 72 further includes a second proximity detector 726 provided on the lower bottom plate 721 and located below the diaphragm storage mechanism 73. The second proximity detector 726 is used to detect whether it is close to the bottom 732 of the diaphragm storage mechanism 73 to determine whether the diaphragm storage mechanism 73 is placed on the pushing and pulling mechanism 72. The second proximity detector 726 may be a proximity sensor. The second proximity detector 726 is communicatively connected to the control device 10. When the second proximity detector 726 detects the bottom 732 of the diaphragm storage mechanism 73, the control device 10 obtains the information that the diaphragm storage mechanism 73 is placed back. Combining with the detection result of the first proximity detector 725, the control device 10 can obtain whether the pushing and pulling mechanism 72 has completed the feeding operation of the diaphragm 2, and whether it can control the film pressing machine to start obtaining the diaphragm 2 from the film dispensing machine 70.

[0145] Refer to Figure 16 and Figure 19, a limiting block 7211 is provided on the lower bottom plate 721 adjacent to the bottom 732 of the diaphragm storage mechanism 73. A limiting notch 732a is provided at the bottom 732 of the diaphragm storage mechanism 73. When the diaphragm storage mechanism 73 is placed on the lower bottom plate 721 and the diaphragm storage mechanism 73 is rotated, the limiting notch 732a of the diaphragm storage mechanism 73 is stuck on the limiting block 7211 of the lower bottom plate 721 to limit the up and down movement of the diaphragm storage mechanism 73. In some embodiments of the present invention, the diaphragm storage mechanism 73 has an opposite top 731 and bottom 732, and a plurality of connecting rods 733 connecting the top 731 and the bottom 732. A handle 734 may be further provided at the top 731 of the diaphragm storage mechanism 73. Both the top 731 and the bottom 732 of the diaphragm storage mechanism 73 have an annular structure. The diaphragm 2 is put in or taken out through the top 731 of the diaphragm storage mechanism 73. The limiting notch 732a is formed on the annular structure of the bottom 732 of the diaphragm storage mechanism 73. The limiting block 7211 is generally in an inverted L shape. After the diaphragm storage mechanism 73 is passed through the top opening 723a of the diaphragm protection cover 723 and the through hole 722a of the upper table plate 722 and placed back on the lower bottom plate 721, the diaphragm storage mechanism 73 is then rotated counterclockwise by, for example, 20 degrees. The limiting block 7211 enters the limiting notch 732a of the bottom 732 of the diaphragm storage mechanism 73 and engages with each other, and the diaphragm storage mechanism 73 cannot move up and down.

[0146] Referring to Figure 13 and Figure 20 , the film matching machine 70 further includes a lifting mechanism 75 located below the diaphragm storage mechanism 73. The lifting mechanism 75 is used to lift the diaphragm 2 placed in the diaphragm storage mechanism 73 so that the uppermost diaphragm 2 placed in the diaphragm storage mechanism 73 has a specified height. In some embodiments of the present invention, the lifting mechanism 75 includes a servo motor 751, a ball screw 752 connected to the servo motor 751, a lifting table 753 connected to the ball screw 752, a support column 754 connected to the lifting table 753, and a diaphragm top plate 755 installed at the top end of the support column 754. The servo motor 751 is communicatively connected to the control device 10. After the uppermost diaphragm 2 placed in the diaphragm storage mechanism 73 is taken away, the control device 10 controls the servo motor 751 to operate and lift the diaphragm 2 placed in the diaphragm storage mechanism 73 by a distance equal to the thickness of a diaphragm, so that the currently uppermost diaphragm 2 placed in the diaphragm storage mechanism 73 always maintains a specified height, to facilitate the diaphragm suction cup to pick up the diaphragm 2 from the diaphragm storage mechanism 73 along a specified path.

[0147] Referring to Figure 17 and Figure 19, the bottom 732 of the diaphragm holding mechanism 73 has a hollow structure. The jacking surface of the lifting mechanism 75 can pass through the hollow structure to jack up the diaphragm 2 in the diaphragm holding mechanism 73. An avoidance hole 721a is provided on the lower bottom plate 721 and is located below the diaphragm holding mechanism 73. The avoidance hole 721a penetrates through the upper and lower surfaces of the lower bottom plate 721. The diaphragm holding mechanism 73 is supported on the outer periphery of the avoidance hole 721a of the lower bottom plate 721. The lifting mechanism 75 is located below the lower bottom plate 721. The jacking surface of the lifting mechanism 75 passes through the avoidance hole 721a of the lower bottom plate 721 and the inner hole of the hollow structure of the bottom 732 of the diaphragm holding mechanism 73 from below the lower bottom plate 721 to jack up the diaphragm 2 in the diaphragm holding mechanism 73.

[0148] Referring to Figure 21 and Figure 22 , the film matching mechanism 40 is used to configure the film 2 with corresponding parameters for the dental model transferred to the film matching station onto the transfer device 20, and the film 2 is placed above the crown side of the dental model. The film matching mechanism 40 includes: a first film suction cup 41, a second film suction cup 42, and a third film suction cup 43, and further includes a second suction cup driving part 44 and a second robotic arm 45. The first film suction cup 41, the second film suction cup 42, the third film suction cup 43, the second suction cup driving part 44, and the second robotic arm 45 are respectively communicatively connected to the control device 10. The first film suction cup 41, the second film suction cup 42, and the third film suction cup 43 are used to adsorb the same film 2 from the film matching machine 70. The first film suction cup 41 and the third film suction cup 43 can be synchronously lifted and lowered and are respectively located on opposite sides of the second film suction cup 42.

[0149] Specifically, the second suction cup driving part 44 is connected to the second robotic arm 45. The second suction cup driving part 44 is respectively connected to the first film suction cup 41 and the third film suction cup 43 to drive the first film suction cup 41 and the third film suction cup 43 to be synchronously lifted and lowered. The second suction cup driving part 44 has a part with a substantially U-shaped structure. The first film suction cup 41 and the third film suction cup 43 are respectively connected to the two side parts of the U-shaped structure. The second film suction cup 42 passes through the middle notch 44a of the U-shaped structure part of the second suction cup driving part 44 and is connected to the second robotic arm 45. In the initial state, the adsorption surfaces of the first film suction cup 41, the second film suction cup 42, and the third film suction cup 43 can be substantially located on the same plane. The control device 10 controls the movement of the second robotic arm 45 and drives the second suction cup driving part 44, the first film suction cup 41, the second film suction cup 42, and the third film suction cup 43 to move.

[0150] When the first diaphragm suction cup 41, the second diaphragm suction cup 42, and the third diaphragm suction cup 43 move to the picking position of the diaphragm 2, the control device 10 controls the first diaphragm suction cup 41, the second diaphragm suction cup 42, and the third diaphragm suction cup 43 to generate vacuum or negative air pressure to adsorb the same diaphragm 2, and controls the second suction cup driving part 44 to rise and drive the first diaphragm suction cup 41 and the third diaphragm suction cup 43 to rise synchronously. The diaphragm 2 adsorbed by the three suction cups may include two adhered diaphragms 2. When the first diaphragm suction cup 41, the second diaphragm suction cup 42, and the third diaphragm suction cup 43 adsorb the two diaphragms 2, the first diaphragm suction cup 41 and the third diaphragm suction cup 43 rise synchronously and drive the adsorbed upper diaphragm 2 to tilt upward, and the lower diaphragm 2 separates from the upper diaphragm 2 and drops, so that the first diaphragm suction cup 41, the second diaphragm suction cup 42, and the third diaphragm suction cup 43 only adsorb the upper diaphragm, thereby preventing the formation of a shell-shaped dental appliance by the two diaphragms 2.

[0151] When the first diaphragm suction cup 41, the second diaphragm suction cup 42, and the third diaphragm suction cup 43 move to the discharging position of the diaphragm 2, the control device 10 controls the second suction cup driving part 44 to descend and drive the first diaphragm suction cup 41 and the third diaphragm suction cup 43 to descend. Then, the control device 10 controls the first diaphragm suction cup 41, the second diaphragm suction cup 42, and the third diaphragm suction cup 43 to place the diaphragm 2 above one side of the dental crown of the dental model. As an example, the process of configuring the diaphragm 2 specifically includes that the control device 10 controls the second lifting mechanism 25 below the transfer disk 21 to lift the guide shaft 233 of the clamping mechanism 23, the compression spring is compressed, the clamping member 231 rises and moves away from the tooth mold mounting seat 221, and a distance is generated from the tooth mold mounting seat 221. The diaphragm 2 passes through the notch 2313 of the clamping member 231 of the clamping mechanism 23 and is placed between the clamping member 231 and the top end of the tooth mold mounting seat 221. The control device 10 controls the air pressure in the three suction cups to be zero or slightly positive air pressure, the diaphragm 2 detaches from the three suction cups and is placed on the tooth mold mounting seat 221. The control device 10 controls the lifting surface of the second lifting mechanism 25 to descend. Under the action of the compression spring, the guide shaft 233 drives the clamping member 231 to move downward, and the diaphragm 2 is clamped between the clamping member 231 and the top end of the tooth mold mounting seat 221, completing the process of configuring the diaphragm 2.

[0152] Refer to Figure 2 、 Figure 23 and Figure 24, the preheating device 51 preheats the diaphragm 2 transferred to the position above the dental cast at the preheating station according to the preheating parameters. The preheating device 51 includes a liftable preheating part 511, and further includes a preheating lifting mechanism 512 connecting the preheating part 511. The preheating part 511 and the preheating lifting mechanism 512 are respectively communicatively connected to the control device 10. The control device 10 controls the lifting of the preheating lifting mechanism 512 and drives the preheating part 511 to lift, and is also used to control the preheating part 511 to preheat the diaphragm 2. The preheating device 51 can change the distance between the preheating part 511 and the diaphragm 2 through the preheating lifting mechanism 512 to change the preheating temperature applied to the diaphragm 2.

[0153] , the heating device 52 heats the diaphragm 2 transferred to the position above the dental cast at the heating station according to the heating parameters. The heating device 52 includes a liftable heating part 521, and a heating lifting mechanism 522 connecting the heating part 521. The heating part 521 and the heating lifting mechanism 522 are respectively communicatively connected to the control device 10. The control device 10 controls the lifting of the heating lifting mechanism 522 and drives the heating part 521 to lift, and is also used to control the heating part 521 to heat the diaphragm 2. The heating device 52 can change the distance between the heating part 521 and the diaphragm 2 through the heating lifting mechanism 522 to change the heating temperature applied to the diaphragm 2. Figure 2 , in the pressure membrane system 1, two adjacent heating devices 52 are provided, which can be used to heat two diaphragms 2 simultaneously and respectively.

[0154] The preheating device 51 and the heating device 52 can have the same structure. Here, the heating lifting mechanism 522 will be described in detail taking the heating device 52 as an example.

[0155] Refer to Figure 24 , the heating lifting mechanism 522 includes a servo motor 5221 and a lead screw 5222 connected to the servo motor 5221. The heating part 521 is connected to the lead screw 5222. The control device 10 configures the heating parameters and control parameters according to the information identifier of the dental cast obtained by the information recognition device 90 and in combination with the pre-stored parameters. When the dental cast moves to the heating station, the control device 10 controls the heating lifting mechanism 522 to drive the heating part 521 to move to the specified heating position, and heats the diaphragm 2 according to the configured heating parameters and control parameters.

[0156] If the humidity in the environment where the diaphragm 2 is located is too high, the diaphragm 2 will absorb water, which will cause bubbles to form in the shell-shaped dental appliance during the pressure membrane process. In addition, bubbles will also form between the shell-shaped dental appliance formed after pressure membrane and the dental cast, resulting in an improper fit of the produced shell-shaped dental appliance, easily leading to a decrease in the correction force of the shell-shaped dental appliance and failing to achieve the ideal correction effect.

[0157] In some embodiments of the present invention, the preheating station includes at least one first preheating station, and the preheating device 51 includes at least one first preheating device 513. Each first preheating device 513 is disposed at each first preheating station, and the first preheating device 513 is configured to perform preheating and dehumidification treatment on the diaphragm 2 above the dental model transferred to the first preheating station according to the preheating parameters. Figure 23 Among them, the preheating device 51 includes two adjacent first preheating devices 513, which can be used to preheat two diaphragms 2 simultaneously and respectively. The shell-shaped dental appliance formed by pressing the dehumidified diaphragm 2 is not likely to generate bubbles, and there will be no bubbles between the shell-shaped dental appliance formed after pressing and the dental model, which is conducive to preparing an ideal shell-shaped dental appliance and improving the orthodontic effect.

[0158] In some embodiments of the present invention, the preheating station includes at least one second preheating station, which is arranged along the transfer direction of the dental model. The second preheating station is located after the first preheating station. The preheating device 51 includes at least one second preheating device 514. Each second preheating device 514 is disposed at each second preheating station, and the second preheating device 514 is configured to perform preheating treatment on the diaphragm 2 above the dental model transferred to the second preheating station according to the preheating parameters. Figure 23 Among them, the preheating device 51 includes two adjacent second preheating devices 514, which can be used to preheat two diaphragms 2 simultaneously and respectively. The preheating temperature applied by the second preheating device 514 to the diaphragm 2 is preferably greater than the preheating temperature applied by the first preheating device 513 to the diaphragm 2 to prevent the diaphragm 2 from absorbing water due to a temperature drop during the preheating stage. When the diaphragm 2 flows to the first preheating station, the first preheating device 513 heats and dehumidifies the diaphragm 2 at a relatively low heating temperature; when the diaphragm 2 continues to flow to the second preheating station, the second preheating device 514 preheats the diaphragm 2; when the diaphragm 2 continues to flow to the heating station, the heating device 52 heats the diaphragm 2 to the temperature required for hot pressing and forming. The temperatures applied by the first preheating device 513, the second preheating device 514, and the heating device 52 to the diaphragm 2 are preferably increased in sequence. The above-mentioned segmented continuous heating method can better dehumidify the diaphragm 2, reduce the bubbles generated on the shell-shaped dental appliance, and thus prepare an ideal shell-shaped dental appliance.

[0159] In each of the drawings combining the heating device in the present application, each station corresponds to a heating device or a preheating device. According to the usage requirements, multiple heating devices can also be set at the same station. The specific setting method, as well as the working and staying beats, can be adjusted and set by oneself. The length of time is coordinated with the longest operation time among the preset stations on the transfer device to ensure that the work tasks corresponding to each station are completed and a corresponding unified working beat is set.

[0160] Refer to Figure 25, the film pressing system 1 further includes a first lifting mechanism 24 located at the film pressing station. The first lifting mechanism 24 is located below the transfer tray 21 and is communicatively connected to the control device 10. The lifting surface of the first lifting mechanism 24 is used to lift the dental mold tray 225 of the carrier mechanism 22. The film pressing device 60 includes: an air valve (not shown), a pressing head 61, and a pressing head lifting mechanism 62 connecting the pressing head 61. The pressing head 61 is located above the transfer tray 21. The air valve and the pressing head lifting mechanism 62 are respectively communicatively connected to the control device 10. The pressing head lifting mechanism 62 includes, for example, a servo motor 621 and a lead screw (not shown) connecting the servo motor 621. The pressing head 61 is connected to the lead screw.

[0161] Specifically, referring to Figure 26 , before the film pressing device 60 performs film pressing, the transfer tray 21 drives the carrier mechanism 22, the dental model on the carrier mechanism 22, and the film 2 located above the dental model to move below the pressing head 61 of the film pressing device 60; referring to Figure 27 , the control device 10 controls the first lifting mechanism 24 to lift the dental mold tray 225 of the carrier mechanism 22 and drive the floating shaft 223, the floating bottom plate 222, and the dental model on the floating bottom plate 222 to rise; referring to Figure 28 , the control device 10 controls the movement of the pressing head lifting mechanism 62 and drives the pressing head 61 to move downward, pressing the film 2 tightly on the floating bottom plate 222 and covering the crown side of the dental model. The pressing head 61 has a concave structure. The concave part of the pressing head 61 can be in a semi-circular structure. The pressing head 61 and the floating bottom plate 222 form a sealed space accommodating the dental model and part of the film 2. The dental model is covered with the film 2. The control device 10 controls the air valve to ventilate the sealed space to press the film 2 on the dental model. The film 2 adheres to the surface of the crown side of the dental model, forming a shell-shaped tooth orthodontic appliance. The pressing head 61 rises, and the lifting surface of the first lifting mechanism 24 descends, completing the thermoforming of the film 2.

[0162] In some embodiments of the present invention, the preset stations of the transfer device 20 include two adjacent film pressing stations. Each film pressing station is respectively provided with a first lifting mechanism 24 and a film pressing device 60. The first lifting mechanism 24 and the film pressing device 60 at each film pressing station cooperate to perform thermoforming on the film 2 on one carrier mechanism 22 on the transfer tray 21

[0163] Referring to Figure 2 and Figure 3, after pressing the heated diaphragm 2 onto the dental model, the control device 10 is further configured to control the movement of the transfer device 20 to send the dental model to the blanking station. The blanking station and the loading station can be the same station, and the loading device 30 is reused as the blanking device. The transfer device 20 further includes a third lifting mechanism 26 located at the blanking station. The lifting surface of the third lifting mechanism 26 is used to lift the guide shaft 233 of the clamping mechanism 23. The third lifting mechanism 26 is located below the transfer tray 21 and is communicatively connected to the control device 10. The control device 10 controls the third lifting mechanism 26 to lift the guide shaft 233 so that the clamping member 231 rises and moves away from the tooth mold mounting seat 221 and generates a distance from the tooth mold mounting seat 221, and the shell-shaped dental appliance on the dental model is released from being pressed. At the same time, the control device 10 controls the loading device 30 to transfer the dental model with the shell-shaped dental appliance after film pressing to the next process. In some embodiments of the present invention, the preset stations of the transfer device 20 include two adjacent blanking stations, and each blanking station is respectively provided with a third lifting mechanism 26. The third lifting mechanism 26 is used to release the clamping action of the clamping mechanism 23 on the shell-shaped dental appliance, facilitating the loading device 30 to pick up and transfer the dental model and the hot-pressed shell-shaped dental appliance.

[0164] Refer to Figure 2 and Figure 8 , the film pressing system 1 may further include a blanking line 100 for receiving and conveying the dental model with the shell-shaped dental appliance. The blanking line 100 can be a belt line and is adjacent to the loading line 80. The loading device 30 removes the dental model with the shell-shaped dental appliance at the blanking station from the transfer device 20 and places it on the blanking line 100, and it flows to the next processing procedure to perform subsequent processes such as cutting and labeling, completing the production operation of the shell-shaped dental appliance.

[0165] Refer to Figure 29 , the process of the film pressing system 1 of an embodiment provided by the present invention for pressing the diaphragm 2 includes the following steps:

[0166] (1) The loading line 80 conveys the dental model of the previous process before film pressing to be adjacent to the fourth proximity detector. When the fourth proximity detector detects that the identification member 811 on the conveying line 81 approaches the fourth proximity detector, the control device 10 controls the movement of the push block driving part 822 and drives the push block 821 to move towards the bearing table 83. The push block 821 pushes the dental model on the conveying line 81 onto the bearing table 83. Then the push block driving part 822 drives the push block 821 to move in the reverse direction, and the push block 821 resets, and the dental model is transferred from the conveying line 81 to the bearing table 83;

[0167] Since a dental cast model corresponds to a shell - type tooth orthodontic appliance for a certain period of a patient, in this application, from the orthodontic case information of the patient to the production information of the corresponding orthodontic appliance, it can be obtained through the MES system (data processing server). The MES system sends the data information to the control device 10 (in the embodiment of this application, the control device 10 includes a PLC controller). The control device 10 controls each device in the membrane - pressing system 1 to operate according to the received data information.

[0168] (2) The control device 10 controls the movement of the camera driving part 92 so that the camera 91 moves above the carrier table 83, and controls the camera 91 to take a picture of the dental cast model on the carrier table 83 to obtain the placement position information of the dental cast model on the carrier table 83. After taking the picture, the control device 10 controls the movement of the camera driving part 92 so that the camera 91 resets.

[0169] (3) After the camera 91 resets, the control device 10 controls the movement of the first robotic arm 31 of the feeding device 30 and drives the first suction cup driving part 32 and the dental mold suction cup 33 to move above the carrier table 83. The control device 10 controls and adjusts the picking posture of the first suction cup driving part 32 and the dental mold suction cup 33 according to the placement position information of the dental cast model obtained by the camera 91, and controls the dental mold suction cup 33 to adsorb the dental cast model from the carrier table 83 and place it on the carrier mechanism 22 of the transfer device 20, completing the feeding of the dental cast model. The feeding device 30 can complete the feeding of two dental cast models at one time.

[0170] (4) After completing the feeding of the dental cast model, the control device 10 controls the movement of the transfer device 20 to transfer the dental cast model from the feeding station to the film - matching station. The control device 10 controls the film - matching mechanism 40 to obtain the film sheet 2 from the film - matching machine 70, and controls the second lifting mechanism 25 below the transfer disk 21 to lift the guide shaft 233 of the clamping mechanism 23. The clamping member 231 rises and moves away from the dental mold mounting seat 221, and a distance is generated from the dental mold mounting seat 221. The film - matching mechanism 40 drives the film sheet 2 to pass through the notch 2313 of the clamping member 231 of the clamping mechanism 23 and places it between the top ends of the clamping member 231 and the dental mold mounting seat 221. The film sheet 2 is placed above the crown side of the dental cast model, completing the film - matching process of the film sheet 2.

[0171] (5) After film - matching is completed, the control device 10 controls the movement of the transfer device 20 to transfer the dental cast model from the film - matching station to the first pre - heating station. The control device 10 controls the pre - heating lifting mechanism 512 of the first pre - heating device 513 to drive the pre - heating part 511 to move to the designated pre - heating position, and performs pre - heating and dehumidification treatment on the film sheet 2 above the dental cast model transferred to the first pre - heating station according to the configured pre - heating parameters and control parameters.

[0172] (6) After the preheating and dehumidifying treatment, the control device 10 controls the movement of the transfer device 20 to transfer the dental model from the first preheating station to the second preheating station. The control device 10 controls the preheating lifting mechanism 512 of the second preheating device 514 to drive the preheating part 511 to move to the designated preheating position, and preheats the diaphragm 2 above the dental model transferred to the second preheating station according to the configured preheating parameters and control parameters;

[0173] (7) After the preheating treatment, the control device 10 controls the movement of the transfer device 20 to transfer the dental model from the second preheating station to the heating station. The control device 10 controls the heating lifting mechanism 522 of the heating device 52 to drive the heating part 521 to move to the designated heating position, and heats the diaphragm 2 according to the configured heating parameters and control parameters;

[0174] (8) After the heating treatment, the control device 10 controls the movement of the transfer device 20 to transfer the dental model from the heating station to the film pressing station. The control device 10 controls the first jacking mechanism 24 to jack up the dental mold tray 225 of the carrier mechanism 22 and drive the floating shaft 223, the floating bottom plate 222 and the dental model on the floating bottom plate 222 to rise. The control device 10 controls the movement of the press head lifting mechanism 62 and drives the press head 61 to move downward, presses the diaphragm 2 tightly on the floating bottom plate 222 and covers it on the crown side of the dental model. The control device 10 controls the air valve to supply air into the sealed space to press the diaphragm 2 on the dental model, and the diaphragm 2 adheres to the surface of the crown side of the dental model to form a shell-shaped dental appliance;

[0175] (9) After the film pressing is completed, the control device 10 controls the movement of the transfer device 20 to transfer the dental model from the film pressing station to the loading station reused as the unloading station. The control device 10 controls the third jacking mechanism 26 to jack up the guide shaft 233 so that the clamping member 231 rises and moves away from the dental mold mounting seat 221 and creates a distance from the dental mold mounting seat 221. The shell-shaped dental appliance on the dental model is released from being pressed tightly. The control device 10 controls the loading device 30 reused as the unloading device to transfer the dental model with the shell-shaped dental appliance to the unloading line 100. The unloading line 100 transfers the shell-shaped dental appliance and the dental model to the next process for subsequent processes such as cutting.

[0176] It should be noted that the above embodiments can be freely combined as needed. The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A film pressing system for pressing a film onto a dental model to form a shell-shaped dental appliance, characterized in that: Including: A control device, a transfer device, a feeding device, a film matching device, a preheating device, a heating device, and a film pressing device, wherein the transfer device, the feeding device, the film matching device, the preheating device, the heating device, and the film pressing device are respectively communicatively connected to the control device; Among them, the transfer device is controlled by the control device to transfer, so that the dental model is sequentially transferred between the film matching station, the preheating station, the heating station, and the film pressing station; The film matching device is arranged at the film matching station, configures a film with corresponding parameters for the dental model transferred to the film matching station onto the transfer device, and the film is placed above the tooth crown side of the dental model; The preheating device is arranged corresponding to the preheating station, and preheats the film above the dental model transferred to the preheating station by the transfer device according to the preheating parameters; The heating device is arranged corresponding to the heating station, and heats the film above the dental model transferred to the heating station according to the heating parameters; The film pressing device is arranged at the film pressing station, presses the film after heating transferred to the film pressing station, so that the film is pressed onto the dental model to form a shell-shaped tooth orthosis; The control device controls the movement of the transfer device to transfer the dental model to the film matching station, controls the film matching device to configure a film with corresponding parameters for the dental model at the film matching station; after the configuration is completed, the control device controls the movement of the transfer device to transfer the dental model and the film with corresponding parameters to the preheating station, and controls the preheating device at the preheating station to preheat the film according to the preheating parameters; when the preheating is completed and transferred to the heating station, the control device controls the heating device to heat the film according to the heating parameters; after the heating is completed, the control device controls the transfer device to continue to move to transfer the dental model and the heated film to the film pressing station, and presses the heated film onto the dental model according to the corresponding film pressing parameters to form a shell-shaped tooth orthosis; The transfer device includes a transfer disk and a plurality of carrier mechanisms, the plurality of carrier mechanisms are arranged at intervals along the circumference of the transfer disk, the carrier mechanism is used for carrying the dental model and the film, and the control device controls the rotation of the transfer disk so that the carrier mechanism reciprocally rotates between the preset stations; The preset stations further include a loading station arranged before the film matching station and an unloading station arranged after the film pressing station; The transfer disk has a plurality of first mounting holes penetrating through the upper and lower surfaces, and the carrier mechanism includes: a tooth mold mounting seat, a floating bottom plate, a floating shaft, a limiting column, and a tooth mold tray; The dental mold mounting base is fixed on the top surface of the transfer tray. The dental mold mounting base has a receiving hole that penetrates up and down and communicates with a first mounting hole of the transfer tray. The top surface of the floating bottom plate is used to carry the dental arch model. The floating bottom plate is vertically movably received in the receiving hole of the dental mold mounting base. The two ends of the floating shaft are respectively connected to the bottom surface of the floating bottom plate and the dental mold tray. The floating shaft vertically movably passes through the first mounting hole of the transfer tray. The top end of the limit post is fixed on the bottom surface of the transfer tray. The dental mold tray has a limit hole. The limit post passes through the limit hole of the dental mold tray. The dental mold tray moves up and down under the guiding action of the limit post and the limit hole of the dental mold tray. The transfer tray has a plurality of second mounting holes that penetrate through the upper and lower surfaces. The transfer device further includes a plurality of clamping mechanisms. The clamping mechanism includes: a clamping member and two sets of guiding components. The guiding component includes: a shaft seat, a guiding shaft, and an elastic member. The shaft seats of the two sets of guiding components are respectively located on opposite sides of the carrier mechanism and fixed on the top surface of the transfer tray. The shaft seat has a shaft hole that penetrates up and down and communicates with a second mounting hole of the transfer tray. The guiding shaft vertically movably passes through the shaft hole of the shaft seat and the second mounting hole of the transfer tray. The top end of the guiding shaft is connected to the clamping member. The clamping member is located above the dental mold mounting base. The elastic force of the elastic member acts on the guiding shaft to make the guiding shaft tend to descend, and clamps the diaphragm on the dental mold mounting base through the clamping member.

2. The film pressing system according to claim 1, wherein, The preheating station includes at least one first preheating station. The preheating device includes at least one first preheating device. Each first preheating device is respectively arranged at each first preheating station. The first preheating device is used to preheat the diaphragm flowing above the dental arch model at the first preheating station according to the first preheating parameters.

3. The film pressing system according to claim 2, wherein The preheating station includes at least one second preheating station, which is arranged along the flowing direction of the dental arch model. The second preheating station is located after the first preheating station. The preheating device includes at least one second preheating device. Each second preheating device is respectively arranged at each second preheating station. The second preheating device is used to preheat the diaphragm flowing above the dental arch model at the second preheating station according to the second preheating parameters.

4. The film pressing system according to claim 3, characterized in that, The preheating temperature applied by the second preheating device to the diaphragm is higher than the preheating temperature applied by the first preheating device to the diaphragm.

5. The film pressing system according to claim 1, wherein, The preheating device includes a vertically movable preheating part. The preheating device changes the preheating temperature applied to the diaphragm by changing the distance between the preheating part and the diaphragm. The heating device includes a vertically movable heating part. The heating device changes the heating temperature applied to the diaphragm by changing the distance between the heating part and the diaphragm.

6. The film pressing system according to claim 5, wherein, The preheating device further includes a preheating lifting mechanism connected to the preheating part. The preheating part and the preheating lifting mechanism are respectively communicatively connected to the control device. The control device controls the lifting of the preheating lifting mechanism and drives the preheating part to lift, and further controls the preheating part to preheat the diaphragm. And the heating device further includes a heating lifting mechanism connected to the heating part. The heating part and the heating lifting mechanism are respectively communicatively connected to the control device. The control device controls the lifting of the heating lifting mechanism and drives the heating part to lift, and further controls the heating part to heat the diaphragm.

7. The film pressing system according to claim 1, wherein The carrier mechanism includes a plurality of limit posts. The die tray has a plurality of limit holes spaced along the periphery. Each limit post respectively passes through one of the limit holes of the die tray.

8. The film pressing system according to claim 1, wherein The floating bottom plate is located above the transfer plate, and the diameter of the floating bottom plate is larger than the diameter of the first mounting hole of the transfer plate.

9. The film pressing system according to claim 1, wherein It further includes a first jacking mechanism located at the film pressing station. The first jacking mechanism is located below the transfer plate and is communicatively connected to the control device. The film pressing device includes: an air valve, a pressing head, and a pressing head lifting mechanism connecting the pressing head. The pressing head is located above the transfer plate, and the air valve and the pressing head lifting mechanism are respectively communicatively connected to the control device. The control device controls the first jacking mechanism to jack up the die tray and drive the floating shaft, the floating bottom plate, and the dental model on the floating bottom plate to rise. At the same time, the control device controls the movement of the pressing head lifting mechanism and drives the pressing head to press the diaphragm against the floating bottom plate and cover the dental model. The pressing head and the floating bottom plate form a sealed space accommodating the dental model. The control device controls the air valve to supply air into the sealed space so that the diaphragm is pressed on the dental model to form a shell-shaped dental appliance.

10. The film pressing system according to claim 1, wherein, The bottom end of the guiding shaft has an abutting portion. The elastic member is a compression spring. The compression spring is sleeved outside the guiding shaft. The two ends of the compression spring respectively abut against the bottom surface of the transfer plate and the abutting portion of the guiding shaft so that the guiding shaft has a tendency to descend.

11. The film pressing system according to claim 1, wherein The clamping member has a notch. The notch of the clamping member is for the diaphragm to pass through and be placed on the die mounting seat.

12. The film pressing system according to claim 11, wherein The clamping member has an annular pressing portion and two mounting portions connecting the annular pressing portion. The two mounting portions are respectively located on opposite sides of the annular pressing portion. The mounting portions are used to connect the top end of the guiding shaft. The annular pressing portion is used to press the diaphragm on the die mounting seat. The notch is formed on the annular pressing portion of the clamping member.

13. The film pressing system according to claim 1, wherein The transfer device further includes a second jacking mechanism located at the film matching station. The second jacking mechanism is located below the transfer plate and is communicatively connected to the control device. The control device controls the second jacking mechanism to jack up the guiding shaft so that the clamping member rises and moves away from the die mounting seat and forms a distance from the die mounting seat. After the diaphragm is placed above the crown side of the dental model, the second jacking mechanism resets and clamps the diaphragm on the die mounting seat through the clamping member.

14. The film pressing system according to claim 1, wherein, The transfer device also includes a third lifting mechanism located at the unloading station, which is located below the transfer plate and is communicatively connected to the control device. The control device controls the third lifting mechanism to lift the guide shaft so that the clamping part rises and moves away from the tooth mold mounting seat and creates a distance with the tooth mold mounting seat. At the same time, the control device controls the unloading device to transfer the dental model with the shell-shaped dental appliance after the lamination is completed to the next process.

15. The film pressing system according to claim 1, wherein Also includes: A loading device is arranged at the loading station, and the loading device is communicatively connected with the control device. The control device controls the loading device to place the dental model from the loading line to the loading station of the transfer device, and further controls the transfer device to transfer the dental model to the film preparation station.

16. The film pressing system according to claim 15, characterized in that, Also includes: A material unloading device is arranged at the unloading station, and the material unloading device is in communication connection with the control device, and the control device controls the material unloading device to transfer the dental model with the shell-shaped dental appliance at the unloading station to the next process.

17. The film pressing system according to claim 16, wherein, The loading station is reused as the unloading station, and the loading device is reused as the unloading device.

18. The film pressing system according to claim 1, wherein It also includes a supporting platform and an information identification device, the supporting platform is used to support the dental model, and the loading device moves the dental model on the supporting platform to the transfer device; the information identification device is communicatively connected with the control device, and the information identification device is used to obtain the placement position information of the dental model on the supporting platform, and the control device controls and adjusts the picking posture of the loading device according to the placement position information of the dental model read by the information identification device, so that the loading device picks up the dental model by adjusting the picking posture of the manipulator relative to the dental model.

19. The film pressing system according to claim 18, wherein It also includes a loading line, which includes a conveyor line and a pushing mechanism. The conveyor line is used to transport the dental and maxillary model. The pushing mechanism and the supporting platform are respectively located on opposite sides of the conveyor line. The pushing mechanism is used to push the dental and maxillary model on the conveyor line to the supporting platform.

20. The film pressing system according to claim 19, characterized in that, A plurality of identification members are arranged on the conveyor line, each of the identification members is adjacent to a dental model on the conveyor line, the loading line further comprises a proximity detector which is communicatively connected to the control device, the proximity detector is used to detect whether the identification member on the conveyor line is close to the proximity detector, the control device is communicatively connected to the pushing mechanism, when the proximity detector detects that the identification member on the conveyor line is close to the proximity detector, the control device controls the pushing mechanism to push the dental model on the conveyor line which is adjacent to the identification member to the supporting platform.

21. The film pressing system according to claim 20, wherein, The pushing mechanism includes a pushing block and a pushing block driving part connected to the pushing block, and the pushing block driving part is communicatively connected to the control device. When the proximity detector detects that the identification piece on the conveying line is close to the proximity detector, the control device controls the pushing block driving part to drive the pushing block to move so as to push the dental model adjacent to the identification piece on the conveying line to the supporting platform.

22. The film pressing system according to claim 18, wherein, The information recognition device includes a camera and a camera driving unit connected to the camera. The camera and the camera driving unit are communicatively connected to the control device. When the dental model is placed on the carrier table, the control device controls the movement of the camera driving unit to move the camera above the carrier table, and controls the camera to take a picture of the dental model on the carrier table. After the picture taking is completed, the control device controls the movement of the camera driving unit to reset the camera.

23. The film pressing system according to claim 22, wherein, The information recognition device further includes a light source communicatively connected to the control device. The carrier table is a light-transmitting carrier table, and the light source is located below the carrier table. When the camera takes a picture of the dental model on the carrier table, the control device controls the light source to be turned on to illuminate the dental model on the carrier table.

24. The film pressing system according to claim 18, wherein, The information recognition device is further configured to obtain an information identifier provided on the dental model for determining the identity of the dental model. The control device obtains preheating parameters according to the identity identifier information corresponding to the information identifier of the dental model, and controls the preheating device to perform a preheating process on the film sheet, obtains heating parameters and controls the heating device to heat the film sheet, and controls the film pressing device to press the film sheet according to the film pressing process parameters, and forms the shell-shaped tooth orthosis.

25. The film pressing system according to claim 18, wherein The loading device includes: a first robotic arm, a first suction cup driving unit, and a dental mold suction cup, which are respectively communicatively connected to the control device. The first suction cup driving unit is respectively connected to the first robotic arm and the dental mold suction cup and drives the dental mold suction cup to move. The control device controls the movement of the first robotic arm and drives the first suction cup driving unit and the dental mold suction cup to move above the carrier table. The control device controls and adjusts the picking postures of the first suction cup driving unit and the dental mold suction cup according to the placement position information of the dental model recognized by the information recognition device, and controls the dental mold suction cup to adsorb the dental model from the carrier table and place it on the transfer device.

26. The film pressing system according to claim 1, wherein, The film sheet matching device includes a film sheet matching mechanism and a film sheet matching machine. The film sheet matching mechanism is configured to obtain a film sheet from the film sheet matching machine and place the film sheet above the crown side of the dental model. The film sheet matching mechanism includes: a first film sheet suction cup, a second film sheet suction cup, and a third film sheet suction cup. The first film sheet suction cup, the second film sheet suction cup, and the third film sheet suction cup are used to adsorb the same film sheet. The first film sheet suction cup and the third film sheet suction cup are arranged to be synchronously lifted and lowered and are respectively located on opposite sides of the second film sheet suction cup.

27. The film pressing system according to claim 26, wherein, The film sheet matching mechanism further includes: a second suction cup driving unit. The control device is communicatively connected to the first film sheet suction cup, the second film sheet suction cup, the third film sheet suction cup, and the second suction cup driving unit respectively. The second suction cup driving unit is respectively connected to the first film sheet suction cup and the third film sheet suction cup to drive the first film sheet suction cup and the third film sheet suction cup to lift and lower. The control device controls the first diaphragm suction cup, the second diaphragm suction cup, and the third diaphragm suction cup to adsorb the same diaphragm, and controls the second suction cup driving part to rise and drive the first diaphragm suction cup and the third diaphragm suction cup to rise; when the first diaphragm suction cup, the second diaphragm suction cup, and the third diaphragm suction cup move to the discharging position of the diaphragm, the control device controls the first diaphragm suction cup, the second diaphragm suction cup, and the third diaphragm suction cup to place the diaphragm above one side of the dental crown of the dental model.

28. The film pressing system according to claim 27, wherein The second suction cup driving part has a U-shaped structure part, the first diaphragm suction cup and the third diaphragm suction cup are respectively connected to two side parts of the U-shaped structure, and the second diaphragm suction cup passes through the middle notch of the U-shaped structure part of the second suction cup driving part.

29. The film pressing system according to claim 26, wherein, The diaphragm matching machine includes: a box body, a pushing and pulling mechanism, and a diaphragm storage mechanism. The pushing and pulling mechanism is arranged on the box body, and the diaphragm storage mechanism is arranged on the pushing and pulling mechanism; the box body has an opening at the top. The pushing and pulling mechanism includes a lower bottom plate, an upper platform plate, and a diaphragm protection cover. The upper platform plate is installed above the lower bottom plate and closes at least part of the top opening of the box body. A through hole for the diaphragm storage mechanism to pass through is arranged on the upper platform plate. The diaphragm protection cover has a top opening for the diaphragm storage mechanism to pass through and covers the upper platform plate. The diaphragm storage mechanism is used for storing diaphragms. The diaphragm storage mechanism detachably passes through the top opening of the diaphragm protection cover and the through hole of the upper platform plate and is supported on the lower bottom plate.

30. The film pressing system according to claim 29, wherein A heating and dehumidifier is further arranged in the diaphragm matching machine. The heating and dehumidifier is arranged in the box body and is used for blowing dry hot gas into the box body to adjust the temperature and humidity in the box body.

31. The film pressing system according to claim 29, wherein The box body further includes a guide rail arranged in the box body. The pushing and pulling mechanism further includes a slider slidably arranged on the guide rail, and the lower bottom plate is arranged on the slider. The side wall of the box body has a side opening. With the cooperation of the guide rail and the slider, at least part of the pushing and pulling mechanism can move in the direction of the guide rail through the side opening of the box body and move outwards from the inside of the box body or move inwards from the outside of the box body.

32. The film pressing system according to claim 31, wherein A sliding support member is arranged on the side wall of the box body with the side opening. The sliding support member is adjacent to the side opening of the box body. During the process of the pushing and pulling mechanism moving outwards from the inside of the box body or moving inwards from the outside of the box body, the upper platform plate is slidably supported on the sliding support member.

33. The film pressing system according to claim 32, wherein A stop block is arranged on the upper platform plate, and a first limit buffer is arranged on the side wall of the box body with the side opening. The first limit buffer is used for abutting against the stop block to block the continuous outward movement of the pushing and pulling mechanism after part of the pushing and pulling mechanism moves outwards from the inside of the box body.

34. The film pressing system according to claim 31, wherein A second limit buffer is further arranged in the box body. The second limit buffer is used for abutting against the lower bottom plate to block the continuous inward movement of the pushing and pulling mechanism when the pushing and pulling mechanism moves inwards from the outside of the box body to a specified position.

35. The film pressing system according to claim 29, characterized in that, The film matching machine further includes a lifting mechanism located below the film holding mechanism, and the lifting mechanism is used to lift the film held by the film holding mechanism so that the uppermost layer of the film held by the film holding mechanism has a specified height.

36. The film pressing system according to claim 35, wherein, The bottom of the film holding mechanism has a hollow structure, and an avoidance hole located below the film holding mechanism is provided on the lower bottom plate. The avoidance hole penetrates the upper and lower surfaces of the lower bottom plate. The film holding mechanism is supported on the outer periphery of the avoidance hole of the lower bottom plate. The lifting surface of the lifting mechanism passes through the avoidance hole of the lower bottom plate and the inner hole of the hollow structure at the bottom of the film holding mechanism from below the lower bottom plate to lift the film in the film holding mechanism.

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