Inflation mechanism, printing equipment and printing system

Abstract

The embodiment of the invention provides an inflation mechanism, printing equipment and a printing system, and relates to the technical field of 3D printing. The inflation mechanism comprises an air pump; and one end of the air channel is connected with the output end of the air pump, and the other end of the air channel is used for communicating with the printing cavity of the printing module. According to the inflation mechanism, the printing equipment and the printing system, the flowing speed of resin can be increased, release of the forming platform and the light-transmitting assembly is accelerated, and therefore the printing efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of 3D printing technology, and in particular to an inflation mechanism, printing equipment and printing system. Background Technology

[0002] Photopolymer 3D printing equipment uses a light source of a specific wavelength (such as ultraviolet light) to irradiate liquid photosensitive resin, causing the resin to solidify layer by layer to form a three-dimensional object. It is widely used in dental restoration and industrial model making.

[0003] In related technologies, photopolymer 3D printing equipment includes a cartridge. During the printing process, a light source shines light from below the cartridge. The light penetrates the light-transmitting component at the bottom of the cartridge and shines on the photosensitive resin inside the cartridge. The photosensitive resin undergoes a photopolymerization reaction under the light. As the light source exposes the printed model layer by layer according to the slice shape, the photosensitive resin can be cured and formed layer by layer according to the slice shape. The printed layer is attached to the forming platform or the previous printed layer, forming a printed part on the forming platform.

[0004] In existing printing technology, after one layer is cured, the molding platform is raised, the resin self-levels, and then the curing of the next layer begins. Dental resins typically have high viscosity, and the self-leveling time is considered part of the printing waiting time, thus extending the overall printing time. Furthermore, the molding platform needs to be raised to a considerable height to allow the printed layer to peel off the translucent film at the bottom of the cartridge before the next layer can be printed, impacting printing efficiency. Summary of the Invention

[0005] This application provides an inflation mechanism, printing equipment, and printing system to address the technical problems in dental applications where the resin viscosity is high, the resin self-leveling time is part of the printing waiting time, which prolongs the overall printing time, and the molding platform needs to be raised to a high height to peel off the light-transmitting film from the bottom of the printing box before the next layer can be printed, thus affecting printing efficiency.

[0006] In a first aspect, embodiments of this application provide an inflation mechanism, including:

[0007] air pump;

[0008] An air passage, one end of which is connected to the output end of the air pump, and the other end of which is used to communicate with the printing cavity of the printing module.

[0009] In some embodiments, a circuit board is also included, to which the air pump is connected.

[0010] In some embodiments, the system further includes a pressure relief line and a pressure relief valve, one end of the pressure relief line being connected to the gas line, and the pressure relief valve being connected to the other end of the pressure relief line, the pressure relief valve being used to open and close the pressure relief line.

[0011] In some embodiments, the system further includes a detection pipeline and a pressure detection device, one end of the detection pipeline being connected to the air passage and the pressure detection device being connected to the other end of the detection pipeline, the pressure detection device being used to detect the air pressure in the detection pipeline.

[0012] Secondly, embodiments of this application provide a printing device, including a device body and an inflation mechanism, wherein the inflation mechanism is connected to the device body and is used to inflate the printing cavity of the printing module.

[0013] In some embodiments, the device body includes a base for use with a molding platform of the device body, and the inflation mechanism is connected to the base.

[0014] In some embodiments, the base is provided with a groove, the inflation mechanism includes an air pump, an air passage and a circuit board, one end of the air passage is connected to the output end of the air pump, the other end of the air passage is used to communicate with the printing cavity, the air pump is connected to the circuit board, and the groove is used to accommodate the air pump, the air passage and the circuit board.

[0015] In some embodiments, a connecting connector is also included, which is connected to the base, and the end of the air passage away from the air pump is connected to the connecting connector. When the base contacts the platform assembly of the printing module, the connecting connector is connected to the air vent of the platform assembly.

[0016] In some embodiments, the inflation mechanism further includes a pressure relief line and a pressure relief valve;

[0017] One end of the pressure relief pipeline is connected to the gas circuit, and the pressure relief valve is connected to the other end of the pressure relief pipeline. The pressure relief valve is used to open and close the pressure relief pipeline. Both the pressure relief pipeline and the pressure relief valve are located in the groove.

[0018] In some embodiments, the inflation mechanism further includes a detection line and a pressure detection element;

[0019] One end of the detection pipeline is connected to the air passage, and the air pressure detection element is connected to the other end of the detection pipeline. The air pressure detection element is used to detect the air pressure in the detection pipeline. Both the detection pipeline and the air pressure detection element are disposed in the groove.

[0020] In some embodiments, a connecting component is further included, the connecting component being disposed within the groove, and the connecting component being used to detachably connect the air pump within the groove.

[0021] In some embodiments, the connection component includes:

[0022] A housing, wherein the housing is disposed within the groove;

[0023] The clamp has a first receiving space between itself and the housing, which is used to accommodate the air pump. The clamp is detachably connected to the housing.

[0024] In some embodiments, the gas path, the pressure relief line, and the detection line are all configured as elastic tubes, and the gas path, the pressure relief line, and the detection line are all disposed between the housing and the inner wall of the groove.

[0025] In some embodiments, the air pump is disposed in the groove along a direction perpendicular to the movement of the molding platform, the circuit board is disposed on the side of the air pump away from the air passage, and the pressure relief valve and the air pressure detection element are connected to the circuit board.

[0026] In some embodiments, a second receiving space is formed between the circuit board and the bottom wall of the groove, the second receiving space being used to receive the air pump, and the connecting assembly being used to detachably connect the circuit board and the base to detachably connect the air pump in the groove.

[0027] In some embodiments, the connecting assembly includes at least one bolt passing through the circuit board and for threaded connection with the base.

[0028] In some embodiments, the connecting assembly further includes a cylinder disposed within the groove, and one end of the air pump is used to insert into or disengage from the cylinder.

[0029] In some embodiments, a shock-absorbing pad is also included, which is disposed between the air pump and the cylinder.

[0030] In some embodiments, the air pump is disposed in the second accommodating space along a moving direction parallel to the molding platform, the pressure relief valve is disposed in the second accommodating space, and the air pressure detection element is connected to the circuit board.

[0031] In some embodiments, an air connector is further included, which is threadedly connected to the base. One end of the air connector is connected to the printing cavity, and the other end of the air connector is connected to the air passage. The air passage is detachably connected to the base through the air connector.

[0032] Thirdly, embodiments of this application provide a printing system, including a printing module and a printing device. The printing device includes a device body and an inflation mechanism. The inflation mechanism is connected to the device body and is used to inflate the printing cavity of the printing module.

[0033] This application provides an inflation mechanism, a printing device, and a printing system. The inflation mechanism uses an air pump and air passage to inflate the printing cavity of the printing module, which promotes the self-leveling process of the resin surface. During the switching between printing layers, the airflow can form uniform pressure on the resin surface, thereby accelerating resin flow and reducing surface ripples or depressions, suppressing the generation of printing layer patterns, improving the interlayer bonding quality and the surface flatness of the printed parts, shortening the waiting time required for each layer of resin to spread and stabilize, and improving printing efficiency. When the air pump inflates the printing cavity through the air passage, the airflow can also exert a downward force on the light-transmitting component at the bottom of the printing cavity. When the forming platform rises in the printing cavity, it accelerates the release between the forming platform and the light-transmitting component, thereby further shortening the waiting time for the forming platform to cure the next layer, and thus further improving printing efficiency. Attached Figure Description

[0034] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0035] Figure 1 A schematic diagram of the inflation mechanism provided in this application.

[0036] Figure 2 Schematic diagram of the printing device provided in this application Figure 1 ;

[0037] Figure 3 for Figure 2 A structural diagram from another angle;

[0038] Figure 4 for Figure 2 Exploded structural diagram of the central clamp, air pump, housing, and base;

[0039] Figure 5 Schematic diagram of the printing device provided in this application Figure 2 ;

[0040] Figure 6 for Figure 5 Partial structural diagram;

[0041] Figure 7 for Figure 5 Exploded view of the circuit board and base;

[0042] Figure 8 A cross-sectional structural diagram of the cylinder, air pump, and shock-absorbing pad of the printing device provided in this application;

[0043] Figure 9 A schematic diagram of the connection connector and vent of the printing device provided in this application in the plugged-in state.

[0044] Explanation of reference numerals in the attached figures:

[0045] 100. Base; 110. Groove; 120. Frame; 130. Connecting joint;

[0046] 210. Air pump; 220. Circuit board; 221. Second accommodating space; 230. Air passage; 240. Pressure relief valve; 250. Air pressure detection device; 260. Pressure relief pipeline; 270. Detection pipeline;

[0047] 300. Connecting assembly; 310. Housing; 320. Clamp; 321. First receiving space; 330. Bolt; 340. Cylinder;

[0048] 400. Shock-absorbing pad;

[0049] 500, gas connector;

[0050] 600, Material box;

[0051] 700, Outer cylinder; 710, Inner cylinder; 720, Forming platform; 730, Vent; 740, Printing cavity.

[0052] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0053] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0054] In the relevant technical field, photopolymer 3D printing equipment includes a cartridge, a molding platform, and a light source located below the cartridge. During the printing process, the light source projects light of a specific pattern upward from the bottom of the cartridge. This light first passes through the light-transmitting component at the bottom of the cartridge and then illuminates the surface area of ​​the photosensitive resin inside the cartridge. After receiving the light, the photosensitive resin undergoes a photopolymerization reaction, thus changing from a liquid state to a solid state. By controlling the exposure pattern of the light source layer by layer to make it consistent with the slice outline of the three-dimensional model, the resin can be cured layer by layer according to the preset shape. Each new cured layer will be attached to the molding platform or the previous cured printing layer. This process is repeated until a complete solid printed part is finally built on the molding platform.

[0055] However, existing technologies suffer from efficiency bottlenecks in actual printing processes. After each layer has cured, the forming platform needs to be raised to allow fresh resin to flow in and cover the cured area. This process relies on the self-leveling of the resin. Especially in dental applications, the photosensitive resins used typically have high viscosity, resulting in slow self-leveling speeds. This prolongs the interlayer waiting time and affects overall printing efficiency. Furthermore, in order for the newly cured layer to peel off smoothly from the light-transmitting film at the bottom of the cartridge, the forming platform often needs to be raised a considerable distance, further increasing non-printing time and limiting the improvement of printing speed.

[0056] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0057] like Figure 1 As shown, this application embodiment provides an inflation mechanism, including an air pump 210 and an air passage 230. One end of the air passage 230 is connected to the output end of the air pump 210, and the other end of the air passage 230 is used to communicate with the printing cavity 740 of the printing module.

[0058] By adopting the above technical solution, the air pump 210 and air passage 230 are used to inflate the printing cavity 740, which can promote the self-leveling process of the resin liquid surface. When switching between printing layers, the airflow can form uniform pressure on the resin surface, thereby accelerating resin flow and reducing surface ripples or depressions, suppressing the generation of printing layer lines, improving the interlayer bonding quality and the surface flatness of the printed parts, shortening the waiting time required for each layer of resin to spread and stabilize, and improving printing efficiency. When the air pump 210 inflates the printing cavity 740 through the air passage 230, the airflow can also exert a downward force on the light-transmitting component at the bottom of the printing cavity 740. When the molding platform 720 rises in the printing cavity 740, it accelerates the release between the molding platform 720 and the light-transmitting component, thereby further shortening the waiting time for the molding platform 720 to cure the next layer, and thus further improving printing efficiency.

[0059] In other embodiments, the inflation mechanism may also employ a solenoid valve pulse air pressure system, a piezoelectric micro-jet device, or a thermostatic expansion pressurization method. The solenoid valve pulse system converts compressed air into a controllable pulse airflow that is injected into the printing chamber 740 by frequently opening and closing a solenoid valve. The piezoelectric micro-jet device generates a small amount of air jet by utilizing the inverse piezoelectric effect of the ceramic sheet. The thermostatic expansion pressurization method generates positive pressure by controlling the heating of the closed air cavity inside the printing chamber 740 and utilizing the principle of thermal expansion and contraction of gas. This eliminates the need for an external air passage 230, resulting in a simpler structure.

[0060] Combination Figure 1and Figure 2 The inflation mechanism also includes a circuit board 220, and an air pump 210 is connected to the circuit board 220.

[0061] By adopting the above technical solution, the function of the circuit board 220 is to regulate the start and stop, working duration, and intensity and rhythm of the output air pressure of the air pump 210 by pre-programming or receiving external instructions; by directly connecting the circuit board 220 to the air pump 210, the space occupied by the air pump 210 and the circuit board 220 is reduced, and there is no need for long cables to electrically connect the air pump 210 and the circuit board 220.

[0062] like Figure 1 As shown, the inflation mechanism also includes a pressure relief line 260 and a pressure relief valve 240. One end of the pressure relief line 260 is connected to the air passage 230, and the pressure relief valve 240 is connected to the other end of the pressure relief line 260. The pressure relief valve 240 is used to open and close the pressure relief line 260.

[0063] By adopting the above technical solution, a pressure relief pipe 260 and a pressure relief valve 240 are used to release the pressure in the printing chamber 740. When needed, the pressure relief valve 240 opens the pressure relief pipe 260 to connect the inner cavity of the printing chamber 740 with the atmosphere, quickly expelling the gas inside the printing chamber 740 to reduce the pressure. During inflation or pressure holding, the pressure relief valve 240 closes the pressure relief pipe 260 to ensure that the air passage 230 is effectively sealed, thereby ensuring that the inflation mechanism can smoothly increase the internal pressure of the printing chamber 740.

[0064] like Figure 1 As shown, the inflation mechanism also includes a detection pipe 270 and a pressure detection element 250. One end of the detection pipe 270 is connected to the air passage 230, and the pressure detection element is connected to the other end of the detection pipe 270. The pressure detection element 250 is used to detect the air pressure in the detection pipe 270.

[0065] In this embodiment, the air pressure detection element 250 is an air pressure sensor.

[0066] This application employs a pressure detection element 250 to ensure stable and uniform air pressure applied to the printing cavity 740, preventing pressure fluctuations from causing turbulence or depressions on the resin surface. When the pressure exceeds a safety threshold, a protection mechanism can be immediately triggered, such as opening a solenoid valve to release pressure or setting an indicator light to alert the operator, preventing damage to the printing module due to overpressure. The pressure detection element 250, in conjunction with the controller, can dynamically adjust the output of the air pump 210 based on real-time air pressure feedback, ensuring optimal leveling while improving the reliability of the printing process.

[0067] In other embodiments, the pressure sensor may be a piezoresistive pressure sensor, a capacitive pressure sensor, a digital pressure sensor, or an inductive pressure sensor.

[0068] Piezoresistive pressure sensors utilize the piezoresistive effect of silicon to sense pressure. They integrate a Wheatstone bridge structure, providing good sensitivity and millisecond-level fast response. Capacitive pressure sensors operate based on the principle that deformation of a metal or silicon thin film causes changes in the spacing between capacitor plates; their structure inherently features low power consumption. Digital pressure sensors can directly output temperature-compensated and linearized digital pressure values, simplifying system design complexity. Inductive pressure sensors employ the electromagnetic induction principle of a coil and magnetic core, detecting pressure by detecting changes in inductance caused by the displacement of the ferromagnetic core. Their robust mechanical structure and non-contact measurement method make them suitable for industrial environments with vibration and shock.

[0069] Combination Figures 2 to 9 This application also provides a printing device, including a device body and an inflation mechanism. The inflation mechanism is connected to the device body and is used to inflate the printing cavity 740 of the printing module.

[0070] The inflation mechanism is adopted from any of the above embodiments.

[0071] In some embodiments, the printing module includes a material box 600, a printing cavity 740 disposed within the material box 600, a light-transmitting component for light to pass through the printing cavity 740 disposed at the bottom of the material box 600, and a forming platform 720 slidably disposed within the material box 600. When the air pump 210 inflates the material box 600 through the air passage 230 to increase the air pressure in the printing cavity 740, the light-transmitting component at the bottom of the material box 600 is subjected to a downward force, which can accelerate the release of the mold.

[0072] like Figure 9 As shown, in some embodiments, the printing module includes an outer cylinder 700 and a platform assembly. A light-transmitting component is provided at the bottom of the outer cylinder 700. The platform assembly includes an inner cylinder 710, and a forming platform 720 is provided at the bottom of the inner cylinder 710. The inner cylinder 710 is inserted into the outer cylinder 700, and the outer side wall of the inner cylinder 710 is slidably and sealingly connected to the inner side wall of the outer cylinder 700. The outer cylinder 700 is separated into a forming cavity by the inner cylinder 710. The forming cavity is located at the bottom of the outer cylinder 700. The inner cylinder 710 communicates with the forming cavity. The forming cavity and the inner cylinder 710 together constitute the printing cavity 740 of the printing module.

[0073] During release, the inflation mechanism inflates the printing cavity 740, which increases the pressure inside the printing cavity 740. The platform component is subjected to an upward force. If the platform component is not restricted by other factors, it can also move upward (i.e., the platform component moves via pneumatic drive), while the light-transmitting component is subjected to a downward force. This up-and-down motion accelerates the release process. In addition, as the platform component moves upward, the printing material can also flow quickly to fill the forming cavity, greatly improving printing efficiency.

[0074] The equipment body includes a base 100, which is used in conjunction with the molding platform 720 of the equipment body, and the inflation mechanism is connected to the base 100.

[0075] In some embodiments, the base 100 and the platform assembly are separately configured. The device body is provided with a lifting mechanism for driving the base 100 to rise and fall. The lifting mechanism is driven by a lead screw. When the base 100 descends, the base 100 can contact the platform assembly, so that the inflation mechanism on the base 100 cooperates with the platform assembly to inflate the printing cavity 740. During printing, the pressure relief valve 240 is controlled to close the pressure relief pipeline 260, so that the printing cavity 740 of the printing module is disconnected from the atmosphere. When the inflation mechanism inflates the printing cavity 740, the air pressure in the printing cavity 740 is greater than the external atmospheric pressure, driving the base 100 to move upward. The platform assembly moves upward synchronously under the air pressure drive. At the same time, the forming platform 720 and the light-transmitting component are separated. Meanwhile, the inflation can generate a downward force on the light-transmitting film, thereby further accelerating the separation of the forming platform 720 and the light-transmitting component. The printing material flows rapidly into the forming cavity under the action of air pressure.

[0076] After the release process is completed, the pressure relief valve 240 opens all or part of the pressure relief pipeline 260, and the gas in the printing chamber 740 is discharged through the pressure relief pipeline 260 to achieve pressure relief. The driving base moves downward and moves the forming platform 720 down to the next printing position to continue printing. The base 100 can limit the movement position of the forming platform 720. During the synchronous movement of the base 100 and the forming platform 720, the base 100 and the forming platform 720 always remain in contact.

[0077] In other embodiments, the base 100 may be fixedly connected to the platform component, and the vertical movement of the platform component is driven by the base 100.

[0078] In some embodiments, the base 100 is connected to the forming platform 720 inside the material box 600, so that the base 100 can synchronously drive the forming platform 720 to move when it moves, thereby allowing the forming platform 720 to release from the light-transmitting component. During printing, the pressure relief valve 240 is closed, and the pressure relief pipe 260 is closed, so that the printing cavity 740 inside the material box 600 is disconnected from the atmosphere. The base 100 can drive the forming platform 720 to move. When the inflation mechanism inflates the material box 600, the air pressure inside the printing cavity 740 is greater than the external atmospheric pressure, and the pressure inside the material box 600... The air pressure exerts a downward force on the light-transmitting film, thereby further accelerating the release of the molding platform 720 and the light-transmitting component. After the release is completed, the pressure relief valve 240 is opened, which opens all or part of the pressure relief pipeline 260. The air pressure inside the material box 600 is discharged through the pressure relief pipeline 260 to prevent the air pressure from affecting the movement of the molding platform 720 in the material box 600. The molding platform 720 is driven to move to the next printing position by controlling the base 100 to continue printing. The molding platform 720 is indirectly driven to move by the base 100, thereby limiting the movement position of the molding platform 720.

[0079] The base 100 is provided with a groove 110. The inflation mechanism includes an air pump 210, an air passage 230 and a circuit board 220. One end of the air passage 230 is connected to the output end of the air pump 210, and the other end of the air passage 230 is used to communicate with the printing chamber 740. The air pump 210 is connected to the circuit board 220. The groove 110 is used to accommodate the air pump 210, the air passage 230 and the circuit board 220.

[0080] By adopting the above technical solution, by using the groove 110 and setting the air pump 210, air passage 230 and circuit board 220 in the groove 110, the air pump 210, air passage 230 and circuit board 220 can utilize the space inside the base 100, thereby reducing the overall space occupied by the base 100, air pump 210, air passage 230 and circuit board 220, and indirectly reducing the space occupied by the entire printing device.

[0081] The printing device also includes a connector 130, which is connected to the base 100. The end of the air passage 230 away from the air pump 210 is connected to the connector 130. When the base 100 contacts the platform assembly of the printing module, the connector 130 is connected to the air vent 730 of the platform assembly.

[0082] In some embodiments, the vent 730 is disposed on the top wall of the inner cylinder 710. When the base 100 contacts the platform assembly, the connector 130 can be directly inserted into the vent 730 to cooperate with the vent 730 and communicate with the printing cavity 740 through the vent 730.

[0083] In some embodiments, when the base 100 and the platform assembly are not in contact or have poor contact, the connecting connector 130 and the vent 730 may be disengaged or unable to properly engage. The connecting connector 130 may also be movably connected to the base 100. For example, the connecting connector 130 may be movably connected to the base 100 via a bellows telescopic tube. The user can pull the connecting connector 130 to extend the bellows telescopic tube, thereby actively inserting the connecting connector 130 into the vent 730. This also enables the air passage 230 to communicate with the printing chamber 740. In this case, the vent 730 can be set on the side wall of the outer cylinder 700. Compared to the fixed method of the connecting connector 130 and the base 100, the movable connecting connector 130 has a complex structure, is not aesthetically pleasing, and is prone to wear and tear.

[0084] The inflation mechanism also includes a pressure relief line 260 and a pressure relief valve 240;

[0085] One end of the pressure relief line 260 is connected to the gas line 230, and the pressure relief valve 240 is connected to the other end of the pressure relief line 260. The pressure relief valve 240 is used to open and close the pressure relief line 260. Both the pressure relief line 260 and the pressure relief valve 240 are located in the groove 110.

[0086] By adopting the above technical solution, a pressure relief pipeline 260 and a pressure relief valve 240 are used to release the pressure of the material box 600. When needed, the pressure relief valve 240 opens the pressure relief pipeline 260 to connect the inner cavity of the material box 600 with the atmosphere, and quickly discharges the gas inside the material box 600 to reduce the pressure. During the inflation or pressure holding process, the pressure relief valve 240 closes the pressure relief pipeline 260 to ensure that the air passage 230 is effectively sealed, thereby ensuring that the inflation mechanism can smoothly increase the internal pressure of the material box 600.

[0087] By placing the pressure relief pipe 260 and the pressure relief valve 240 in the groove 110, the pressure relief pipe 260 and the pressure relief valve 240 can utilize the space in the groove 110, thereby reducing the space occupied by the pressure relief pipe 260, the pressure relief valve 240 and the base, and thus indirectly reducing the space occupied by the printing equipment.

[0088] The inflation mechanism also includes a detection line 270 and a pressure detection element 250;

[0089] One end of the detection pipeline 270 is connected to the air passage 230, and the air pressure detection element 250 is connected to the other end of the detection pipeline 270. The air pressure detection element 250 is used to detect the air pressure in the detection pipeline 270. Both the detection pipeline 270 and the air pressure detection element 250 are set in the groove 110.

[0090] In this embodiment, the air pressure detection element 250 is an air pressure sensor.

[0091] This application employs a pressure detection element 250 to ensure stable and uniform air pressure applied to the resin container 600, preventing pressure fluctuations from causing turbulence or depressions on the resin surface. When the pressure exceeds a safety threshold, a protection mechanism can be immediately triggered, such as opening a solenoid valve to release pressure or setting an indicator light to alert the operator, preventing damage to the resin bottle container 600 due to overpressure. The pressure detection element 250, in conjunction with the controller, can dynamically adjust the output of the air pump 210 based on real-time air pressure feedback, ensuring optimal leveling while improving the reliability of the printing process.

[0092] By placing the detection line 270 and the air pressure detection element 250 in the groove 110, the detection line 270 and the air pressure detection element 250 can utilize the space in the groove 110, thereby reducing the space occupied by the detection line 270, the air pressure detection element 250 and the base, and thus indirectly reducing the space occupied by the printing equipment.

[0093] The printing device also includes a connection assembly 300 disposed within the recess 110, and the connection assembly 300 is used to detachably connect the air pump 210 within the recess 110.

[0094] By adopting the above technical solution and by setting the connecting component 300, the connecting component 300 can detachably connect the air pump 210 in the groove 110. When the air pump 210 is removed, the air pump 210 can drive the air passage 230 and the circuit board 220 to be removed, thereby facilitating the maintenance of the inflation mechanism and indirectly extending the service life of the inflation mechanism.

[0095] In some embodiments, a cover plate is provided on the base 100 to close the groove 110, thereby preventing dust from affecting the inflation mechanism. The cover plate can be fixed to the base 100 by means of screw connection, snap-fit ​​or magnetic attraction.

[0096] Combination Figure 2 , Figure 3 and Figure 4 In some embodiments, the connecting assembly 300 includes a housing 310 and a clamp 320. The housing 310 is disposed in the groove 110, and a first receiving space 321 is formed between the clamp 320 and the housing 310. The first receiving space 321 is used to receive the air pump 210, and the clamp 320 is detachably connected to the housing 310.

[0097] In this embodiment, both the housing 310 and the clamp 320 are arc-shaped. The arc-shaped housing 310 and the arc-shaped clamp 320 cooperate with the outer wall of the air pump 210, thereby preventing the air pump 210 from moving between the housing 310 and the clamp 320, and indirectly improving the fixing strength of the air pump 210.

[0098] By employing a housing 310 and a clamp 320, this application can position the air pump 210 within the groove 110, preventing deviations in the installation position of the air pump 210 and thus indirectly improving the fixing strength of the air pump 210.

[0099] In this embodiment, two screws are provided at both ends of the clamp 320. The screws pass through the clamp 320 and are used for threaded connection with the housing 310. The clamp 320 is detachably connected to the housing 310 by the screws. By using the screws, the fixing strength between the clamp 320 and the housing 310 is improved, and the air pump 210 can be disassembled and assembled by turning the screws, which improves the convenience of installing and disassembling the air pump 210.

[0100] In other embodiments, one end of the clamp 320 can be hinged to the housing 310, and the other end of the clamp 320 can be detachably connected to the housing 310 by screws. By reducing the number of screws used, the ease of disassembly and assembly of the air pump 210 can be further improved. Alternatively, the clamp 320 can be snapped onto the housing 310, so that the air pump 210 can be disassembled and assembled without screws.

[0101] Combination Figure 2 , Figure 3 and Figure 4 The air passage 230, the pressure relief line 260, and the detection line 270 are all made of elastic tubes, and the air passage 230, the pressure relief line 260, and the detection line 270 are all located between the inner wall of the housing 310 and the groove 110.

[0102] In this embodiment, the elastic tube is a silicone tube; in other embodiments, the elastic tube may be replaced with a rubber tube.

[0103] In this embodiment, the gas passage 230, the pressure relief line 260, and the detection line 270 form a "U" shape to surround the housing 310. The pressure relief line 260 and the detection line 270 are respectively arranged on opposite sides of the housing 310, and the gas passage 230 is connected between the pressure relief line 260 and the detection line 270.

[0104] In this application, while the gas path 230, pressure relief line 260, and detection line 270 deliver gas, the silicone material of the gas path 230, pressure relief line 260, and detection line 270 has high elasticity and damping characteristics, making the gas path 230, pressure relief line 260, and detection line 270 an elastic buffer module. When the mechanical vibration generated by the air pump 210 is transmitted to the silicone tube through the housing 310, the silicone molecular chain will undergo recoverable elastic deformation, which can effectively absorb and dissipate vibration energy, reduce the transmission of vibration to the base 100 and the entire printing device, reduce the offset of the print head caused by vibration, and help improve the accuracy and stability of printing.

[0105] The air pump 210 is arranged in the groove 110 along the moving direction perpendicular to the forming platform 720. The circuit board 220 is arranged on the side of the air pump 210 away from the air passage 230. The pressure relief valve 240 and the air pressure detection element 250 are connected to the circuit board 220.

[0106] In this embodiment, the circuit board 220 is perpendicular to the bottom wall of the groove 110. When the air pump 210 is fixed in the groove 110, the air pump 210 can drive the circuit board 220 to be fixed in the groove 110, so that the circuit board 220 does not need to be fixed separately, which improves the convenience of installation and disassembly of the inflation mechanism.

[0107] In this embodiment, the air pump 210 is arranged in the groove 110 along the moving direction perpendicular to the molding platform 720. Specifically, the air outlet direction of the air pump 210 is arranged perpendicular to the moving direction of the molding platform 720. The air pump 210 is a cylinder, and the axial direction of the cylindrical air pump 210 is perpendicular to the moving direction of the molding platform 720. The air pump 210 is arranged in the groove 110 in the horizontal direction.

[0108] In this embodiment, the pressure relief valve 240 and the air pressure detection element 250 are disposed on the same side of the circuit board 220 as the air pump 210, and the pressure relief valve 240 and the air pressure detection element 250 are respectively disposed on opposite sides of the air pump 210. This allows the pressure relief valve 240 and the air pressure detection element 250 to utilize the space on both sides of the air pump 210, eliminating the need for additional space for their arrangement and reducing their space occupation.

[0109] By arranging the air pump 210 in the groove 110 along the moving direction perpendicular to the molding platform 720, the air pump 210 utilizes the horizontal space within the base 100, thereby reducing the space occupied by the air pump 210 and the base 100. By connecting the pressure relief valve 240 and the pressure detection element 250 to the circuit board 220, when the air pump 210 drives the circuit board 220 to be removed, the circuit board 220 can simultaneously drive the pressure relief valve 240, the pressure detection element 250, the pressure relief pipeline 260, and the detection pipeline 270 to be removed, thereby facilitating the maintenance and replacement of the pressure relief valve 240, the pressure detection element 250, the pressure relief pipeline 260, and the detection pipeline 270.

[0110] Combination Figure 5 , Figure 6 and Figure 7 In some embodiments, a second receiving space 221 is formed between the circuit board 220 and the bottom wall of the groove 110. The second receiving space 221 is used to receive the air pump 210. The connecting assembly 300 is used to detachably connect the circuit board 220 and the base 100 so that the air pump 210 can be detachably connected in the groove 110.

[0111] This application uses a connecting component 300 to detachably connect the circuit board 220 and the base 100. When the circuit board 220 is fixed to the base 100, the circuit board 220 can drive the air pump 210 to be fixed in the groove 110. When the circuit board 220 is separated from the base 100, the circuit board 220 can drive the air pump 210 to be taken out from the groove 110, so that the air pump 210 does not need to be fixed separately. This allows the circuit board 220 to indirectly fix the air pump 210, improving the convenience of assembling and disassembling the air pump 210.

[0112] Combination Figure 5 , Figure 6 and Figure 7 The connecting assembly 300 includes at least one bolt 330, which passes through the circuit board 220 and is used for threaded connection with the base 100.

[0113] In this embodiment, the connecting component 300 includes two bolts 330, which are respectively disposed on both sides of the circuit board 220. A fixing post is disposed on the inner wall of the base 100 at the location of the two bolts 330. The bolts 330 are used for insertion and threaded connection to the fixing post. In other embodiments, the number and position of the bolts 330 can be adjusted as needed.

[0114] This application improves the fixing strength between the circuit board 220 and the base 100 by using bolts 330, thereby indirectly improving the fixing strength of the air pump 210. The circuit board 220 and the air pump 210 can be disassembled and assembled by turning the bolts 330, which improves the convenience of disassembling and assembling the circuit board 220 and the air pump 210.

[0115] Combination Figure 5 , Figure 6 and Figure 7 The connecting assembly 300 also includes a cylinder 340, which is disposed in the groove 110, and one end of the air pump 210 is used to connect or disconnect from the cylinder 340.

[0116] By using the cylindrical body 340, when the circuit board 220 drives the air pump 210 to move toward the groove 110, the cylindrical body 340 positions the air pump 210 in the groove 110 by inserting one end of the air pump 210 into the cylindrical body 340, thus preventing the air pump 210 from deviating from its installation position and indirectly improving the fixing strength of the air pump 210.

[0117] like Figure 8 As shown, the printing device also includes a shock-absorbing pad 400, which is disposed between the air pump 210 and the cylinder 340.

[0118] In this embodiment, the shock-absorbing pad 400 is a silicone pad; in other embodiments, the shock-absorbing pad 400 may be replaced with a rubber pad.

[0119] In this embodiment, shock-absorbing pads 400 are provided on both the side wall and the bottom wall of the cylinder 340, and the shock-absorbing pads 400 abut against the air pump 210.

[0120] In this application, the silicone material of the shock-absorbing pad 400 has high elasticity and damping properties. The shock-absorbing pad 400 can form an elastic buffer module. When the mechanical vibration generated by the air pump 210 is working is transmitted to the shock-absorbing pad 400 through the cylinder 340, the silicone molecular chain will undergo recoverable elastic deformation, which can effectively absorb and dissipate vibration energy, reduce the transmission of vibration to the base 100 and the entire printing device, reduce the offset of the print head caused by vibration, and help improve the accuracy and stability of printing.

[0121] Combination Figure 5 , Figure 6 and Figure 7 An air pump 210 is installed in the second accommodating space 221 along a moving direction parallel to the molding platform 720. A pressure relief valve 240 is installed in the second accommodating space 221. An air pressure detection element 250 is connected to the circuit board 220.

[0122] In this embodiment, the air pump 210 is arranged in the groove 110 along the moving direction parallel to the molding platform 720. Specifically, the air outlet direction of the air pump 210 is arranged parallel to the moving direction of the molding platform 720. The air pump 210 is a cylinder, and the axial direction of the cylindrical air pump 210 is parallel to the moving direction of the molding platform 720. The air pump 210 is arranged vertically in the groove 110, and the driving end of the air pump 210 is arranged downward.

[0123] In this embodiment, the circuit board 220 is arranged in a horizontal direction and is located above the air pump 210. The output end of the air pump 210 is arranged in a direction away from the circuit board 220.

[0124] In this embodiment, a frame 120 is provided inside the base 100, and the pressure relief valve 240 is inserted into the frame 120 to be fixed to the base 100 by friction. This eliminates the need for separate installation and disassembly of the pressure relief valve 240, improving the efficiency of installation and disassembly. The air pressure detection element 250 and the air pump 210 are located on the same side of the circuit board 220, eliminating the need for additional space for the arrangement of the pressure relief valve 240 and the air pressure detection element 250, thus reducing the space occupied by the pressure relief valve 240 and the air pressure detection element 250.

[0125] By adopting the above technical solution, the circuit board 220 is set on the upper part of the air pump 210, which makes it easy to remove the air pump 210 through the circuit board 220. The air pump 210 is set in the second receiving space 221 along the moving direction parallel to the molding platform 720, utilizing the space in the height direction of the base 100, thereby reducing the space occupied by the air pump 210 and the base 100. When the circuit board 220 is removed, the circuit board 220 can drive the air pressure detection element 250 and the detection pipeline 270 to be removed simultaneously. At this time, the pressure relief valve 240 is removed from the frame 120, so that the pressure relief valve 240 drives the pressure relief pipeline 260 to be removed, which facilitates the maintenance and replacement of the pressure relief valve 240, the air pressure detection element 250, the pressure relief pipeline 260 and the detection pipeline 270.

[0126] The printing device also includes an air connector 500, which is threadedly connected to the base 100. One end of the air connector 500 is connected to the printing chamber 740, and the other end of the air connector 500 is connected to the air passage 230. The air passage 230 is detachably connected to the base 100 through the air connector 500.

[0127] In some embodiments, when a connecting connector 130 is provided on the outer wall of the base 100, one end of the air connector 500 can be inserted into the connecting connector 130, so that when the base 100 contacts the platform assembly, the connecting connector 130 is inserted into the vent 730, thereby allowing one end of the air connector 500 to communicate with the printing cavity 740 through the connecting connector 130 and the vent 730.

[0128] By adopting the air connector 500, this application allows the air pump 210 to be removed from the base 100 after the air pump 210 is removed, thereby facilitating the maintenance and replacement of the air circuit 230 and further improving the service life of the inflation mechanism.

[0129] The printing device provided in this application, by setting up an inflation mechanism, allows the screws to be removed from the clamp 320 when the air pump 210 and air passage 230 need to be removed for maintenance. This separates the clamp 320 from the housing 310 and disconnects the air connector 500 from the base 100 from the threaded connection. This allows the air pump 210 to drive the circuit board 220, air pressure detection component 250, circuit board 220, and air passage 230 out of the groove 110, thereby facilitating the maintenance of the circuit board 220, air pressure detection component 250, circuit board 220, and air passage 230, and indirectly extending the service life of the circuit board 220, air pressure detection component 250, circuit board 220, and air passage 230.

[0130] When the air pump 210 and air passage 230 need to be removed for maintenance, the bolt 330 is removed from the circuit board 220, and the air passage 230 is disconnected from the base 100 by the thread, so that the circuit board 220 can be removed from the inner wall of the groove 110. The circuit board 220 can drive the air pump 210 to be removed from the cylinder 340, and the circuit board 220 can drive the air pump 210, the air pressure detection element 250 and the air passage 230 to be removed from the groove 110, thereby facilitating the maintenance of the air pump 210, the air pressure detection element 250 and the air passage 230, and indirectly extending the service life of the air pump 210, the air pressure detection element 250 and the air passage 230.

[0131] By arranging the air pump 210, circuit board 220, air passage 230, pressure relief valve 240, pressure relief pipe 260, detection pipe 270, and air pressure detection element 250 within the groove 110, the space occupied by the air pump 210, circuit board 220, air passage 230, pressure relief valve 240, pressure relief pipe 260, detection pipe 270, and air pressure detection element 250 is reduced by utilizing the space inside the base 100, thereby indirectly reducing the space occupied by the printing equipment.

[0132] This application embodiment also provides a printing system, including a printing module and a printing device. The printing device includes a device body and an inflation mechanism. The inflation mechanism is connected to the device body and is used to inflate the printing cavity 740 of the printing module.

[0133] The printing device is the printing device of any of the above embodiments.

[0134] The specific structures of the printing module, printing equipment, and inflation mechanism have been described in detail in the above embodiments, and will not be repeated here.

[0135] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. An inflation mechanism, characterized in that, include: Air pump (210); An air passage (230) is provided, one end of which is connected to the output end of the air pump (210), and the other end of which is used to communicate with the printing cavity (740) of the printing module.

2. The inflation mechanism according to claim 1, characterized in that, It also includes a circuit board (220), to which the air pump (210) is connected.

3. The inflation mechanism according to claim 1, characterized in that, It also includes a pressure relief line (260) and a pressure relief valve (240). One end of the pressure relief line (260) is connected to the gas line (230), and the pressure relief valve (240) is connected to the other end of the pressure relief line (260). The pressure relief valve (240) is used to open and close the pressure relief line (260).

4. The inflation mechanism according to claim 1, characterized in that, It also includes a detection pipeline (270) and a pressure detection device (250). One end of the detection pipeline (270) is connected to the air passage (230), and the pressure detection device is connected to the other end of the detection pipeline (270). The pressure detection device (250) is used to detect the pressure in the detection pipeline (270).

5. A printing device, characterized in that, It includes a device body and an inflation mechanism, the inflation mechanism being connected to the device body and used to inflate the printing cavity (740) of the printing module.

6. The printing device according to claim 5, characterized in that, The device body includes a base (100), which is configured to cooperate with the molding platform (720) of the device body, and the inflation mechanism is disposed on the base (100).

7. The printing device according to claim 6, characterized in that, The base (100) is provided with a groove (110). The inflation mechanism includes an air pump (210), an air passage (230), and a circuit board (220). One end of the air passage (230) is connected to the output end of the air pump (210), and the other end of the air passage (230) is used to communicate with the printing cavity (740). The air pump (210) is connected to the circuit board (220). The groove (110) is used to accommodate the air pump (210), the air passage (230), and the circuit board (220).

8. The printing device according to claim 7, characterized in that, It also includes a connector (130) connected to the base (100), the end of the air passage (230) away from the air pump (210) being connected to the connector (130), and the connector (130) being connected to the air vent (730) of the platform assembly when the base (100) contacts the platform assembly of the printing module.

9. The printing device according to claim 7, characterized in that, The inflation mechanism also includes a pressure relief pipe (260) and a pressure relief valve (240); One end of the pressure relief pipeline (260) is connected to the gas passage (230), and the pressure relief valve (240) is connected to the other end of the pressure relief pipeline (260). The pressure relief valve (240) is used to open and close the pressure relief pipeline (260). Both the pressure relief pipeline (260) and the pressure relief valve (240) are located in the groove.

10. The printing apparatus according to claim 9, characterized in that, The inflation mechanism also includes a detection pipeline (270) and a pressure detection element (250); One end of the detection pipeline (270) is connected to the air passage (230), and the air pressure detection element (250) is connected to the other end of the detection pipeline (270). The air pressure detection element (250) is used to detect the air pressure in the detection pipeline (270). Both the detection pipeline (270) and the air pressure detection element (250) are disposed in the groove (110).

11. The printing apparatus according to claim 10, characterized in that, It also includes a connecting component (300) disposed within the groove (110) and used to detachably connect the air pump (210) within the groove (110).

12. The printing apparatus according to claim 11, characterized in that, The connection component (300) includes: A housing (310) is disposed within the groove (110); A clamp (320) is provided, and a first receiving space (321) is formed between the clamp (320) and the housing (310). The first receiving space (321) is used to receive the air pump (210). The clamp (320) and the housing (310) are detachably connected.

13. The printing apparatus according to claim 12, characterized in that, The gas passage (230), the pressure relief line (260), and the detection line (270) are all configured as elastic tubes, and the gas passage (230), the pressure relief line (260), and the detection line (270) are all located between the housing (310) and the inner wall of the groove (110).

14. The printing apparatus according to claim 11, characterized in that, The air pump (210) is disposed in the groove (110) along a direction perpendicular to the movement of the forming platform (720), the circuit board (220) is disposed on the side of the air pump (210) away from the air passage (230), and the pressure relief valve (240) and the air pressure detection element (250) are connected to the circuit board (220).

15. The printing apparatus according to claim 11, characterized in that, A second receiving space (221) is formed between the circuit board (220) and the bottom wall of the groove (110), the second receiving space (221) is used to receive the air pump (210), and the connecting assembly (300) is used to detachably connect the circuit board (220) and the base (100) so as to detachably connect the air pump (210) in the groove (110).

16. The printing apparatus according to claim 15, characterized in that, The connecting assembly (300) includes at least one bolt (330) that passes through the circuit board (220) and is used for threaded connection with the base (100).

17. The printing apparatus according to claim 15, characterized in that, The connecting assembly (300) also includes a cylindrical body (340) disposed in the groove (110), and one end of the air pump (210) is used to insert into or detach from the cylindrical body (340).

18. The printing apparatus according to claim 17, characterized in that, It also includes a shock-absorbing pad (400) disposed between the air pump (210) and the cylinder (340).

19. The printing apparatus according to claim 15, characterized in that, The air pump (210) is arranged in the second accommodating space (221) along the moving direction parallel to the forming platform (720), the pressure relief valve (240) is arranged in the second accommodating space (221), and the air pressure detection element (250) is connected to the circuit board (220).

20. The printing apparatus according to any one of claims 7-19, characterized in that, It also includes an air connector (500), which is threadedly connected to the base (100). One end of the air connector (500) is connected to the printing cavity (740), and the other end of the air connector (500) is connected to the air passage (230). The air passage (230) is detachably connected to the base (100) through the air connector (500).

21. A printing system, characterized in that, It includes a printing module and a printing device. The printing device includes a device body and an inflation mechanism. The inflation mechanism is connected to the device body and is used to inflate the printing cavity (740) of the printing module.

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