Tray residue transfer method and tray residue transfer device

Abstract

The application provides a tray residue transfer method and a tray residue transfer device. The tray residue transfer method is used for transferring residues in a tray of a printing device. The tray residue transfer method comprises the following steps: placing the tray residue transfer device in the tray; projecting light into the tray; and taking out the tray residue transfer device when the actual light projection time reaches the predetermined light projection time, and removing a solidified layer, so as to solve the problem that the cleaning operation of the tray in the prior art is easy to damage the surface of a release film.

Description

Technical Field

[0001] This invention relates to the field of photopolymer additive manufacturing equipment technology, and more specifically, to a method for transferring material tray residue and a material tray residue transfer device. Background Technology

[0002] 3D printing technology is a technology that uses 3D printing equipment to create three-dimensional solid objects by layering three-dimensional model data. 3D printing technology can overcome special structural obstacles that cannot be achieved by existing mechanical processing technology, and can simplify the production of arbitrarily complex structural parts.

[0003] Currently, 3D printing technologies include stereolithography (SLA), digital light processing (DLP), liquid crystal display (LCD), fused deposition modeling (FDM), and selective laser sintering (SLS). Among them, DLP works by utilizing the characteristic of liquid photosensitive polymers curing under light. A high-resolution digital light processor (DLP) is used to cure the liquid polymer layer by layer until the final model is completed.

[0004] In existing photopolymer additive manufacturing equipment, after prolonged use or when left idle, residues of consumable materials (such as photosensitive resin) will accumulate in the tray due to various reasons (such as environmental factors like thermocuring and diffused light radiation, or human factors such as unclean molding platforms and damaged printed parts). When the residues reach a certain size or quantity, they will affect the printing quality (such as board drop).

[0005] Therefore, the material tray needs to be cleaned before printing the model. During cleaning, customers need to wear gloves to remove residue from the material tray. This not only requires experienced operators, but also carries the risk of damaging the release film surface if handled carelessly. It also easily leads to waste of gloves due to resin contamination, resulting in a poor user experience. Summary of the Invention

[0006] The main objective of this invention is to provide a method and device for transferring material tray residue, so as to solve the problem that the material tray cleaning operation in the prior art is prone to damaging the surface of the release film.

[0007] To achieve the above objectives, according to one aspect of the present invention, a method for transferring residue from a printing device's tray is provided. The method includes: placing a tray residue transfer device inside the tray; projecting light into the tray; and removing the tray residue transfer device and removing the cured layer when the actual light projection time reaches a predetermined light projection time.

[0008] Furthermore, in the step of projecting light into the tray, the method for transferring tray residue includes: using the entire surface of the printing area within the tray as the light-receiving area of ​​the tray; or dividing the printing area within the tray into multiple light-receiving zones, and projecting light onto each of the multiple light-receiving zones at different times.

[0009] Furthermore, the method for dividing multiple projection zones is as follows: the bottom surface of the material tray cavity is divided into multiple grid areas according to the grid division method, and the multiple grid areas are multiple projection zones.

[0010] Furthermore, in the step of illuminating the material tray, the material tray residue transfer method includes: when there is residue in the material tray, dividing the printing area in the material tray into a residue area with residue, a transferor area corresponding to the material tray residue transferor, and a retention area other than the residue area and the transferor area; controlling the illumination time of the residue area and the illumination time of the transferor area to be greater than the illumination time of the retention area.

[0011] Furthermore, the cavity of the material tray is rectangular, and any one of the four corners of the bottom surface of the cavity of the material tray is defined as the transferor area; or the projection position of the forming platform of the printing device on the material tray is defined as the transferor area; or the transferor area is determined by real-time detection of the position of the material tray residue transferor.

[0012] Furthermore, before placing the tray residue transfer device inside the tray, the tray residue transfer method includes: detecting whether there is residue inside the tray, and when residue is detected inside the tray, reminding the user to place the tray residue transfer device in the residue area where the residue is located.

[0013] Furthermore, in the step of illuminating the material tray, the method for transferring residue from the material tray includes illuminating the residue area.

[0014] Furthermore, the method for placing the material tray residue transfer device inside the material tray is as follows: place the material tray residue transfer device at any one of the four corners of the bottom surface of the cavity of the material tray; and / or when the actual illumination duration reaches the predetermined illumination duration, lift the material tray residue transfer device at a predetermined speed.

[0015] Furthermore, before placing the material tray residue transfer device into the material tray, the material tray residue transfer method also includes: detecting the size of the residue in the material tray, and determining whether the size of the residue will affect production based on the detection results; when it is determined that the size of the residue will affect production, the step of placing the material tray residue transfer device into the material tray is executed.

[0016] Furthermore, the size of the residue in the tray is detected by a detection component, which is at least one of a force sensor, an infrared sensor, a displacement sensor, an image sensor, and an ultrasonic sensor.

[0017] Furthermore, the detection component is installed below the tray, or between the tray and the release film inside the tray, or on a tray platform having a tray.

[0018] According to another aspect of the present invention, a tray residue transfer device is provided, which is applicable to the above-described tray residue transfer method. The tray residue transfer device is placed in the tray by means of an external structure, or by means of manual placement in the tray, or by means of a forming platform of a printing device. The tray residue transfer device includes: an adhesive component, on which an adhesive surface is provided for bonding with residue.

[0019] Furthermore, the tray residue transfer device includes: a part-retrieving handle connected to the adhesive and located on the side away from the adhesive plane for manual gripping; or a platform adapter connected to the adhesive and located on the side away from the adhesive plane for connection to a molding platform.

[0020] Furthermore, when the tray residue transferor includes a pick-up handle, the pick-up handle is integrally formed with or detachably connected to the adhesive component; or when the tray residue transferor includes a platform adapter, the platform adapter is integrally formed with or detachably connected to the adhesive component.

[0021] Furthermore, the outer peripheral surface of the adhesive includes a positioning side and a transition side that are connected end to end. The positioning side is used to contact and engage with the inner edge of the tray, and the transition side is located on the side of the positioning side closer to the center of the tray.

[0022] Furthermore, the adhesive component is provided with a drainage hole.

[0023] Furthermore, the surface treatment process of the bonding surface includes at least one of laser engraving, sandblasting, drilling, spraying, oxidation, passivation, and coating processes.

[0024] Applying the technical solution of this invention, the tray residue transfer method of this invention is used to transfer residue in the tray of a printing device. The tray residue transfer method includes: placing a tray residue transfer device in the tray; initiating a cleaning command; projecting light into the tray; determining whether the actual light projection time has reached the predetermined light projection time; and when the actual light projection time has reached the predetermined light projection time, removing the tray residue transfer device to remove the cured layer. This tray residue transfer method of the present invention utilizes a tray residue transfer device to remove residue from the tray, does not rely on the operator's experience, reduces the risk of misoperation when manually removing the cured layer, and solves the problem in the prior art where tray cleaning operations easily damage the release film surface, thus extending the service life of the release film. Simultaneously, this transfer process does not require user contact with consumables, reducing the harm to the human body from consumables (some consumables are slightly toxic), and is easy to clean, improving the user experience. Attached Figure Description

[0025] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0026] Figure 1 A flowchart illustrating an embodiment of the material tray residue transfer method according to the present invention is shown;

[0027] Figure 2 A schematic diagram of the structure of a first embodiment of the material tray residue transfer device according to the present invention is shown;

[0028] Figure 3 A bottom view of a first embodiment of the material tray residue transfer device according to the present invention is shown;

[0029] Figure 4 A top view of a first embodiment of the material tray residue transfer device according to the present invention is shown;

[0030] Figure 5 A schematic diagram of a second embodiment of the material tray residue transfer device according to the present invention is shown;

[0031] Figure 6 A side view of a second embodiment of the material tray residue transfer device according to the present invention is shown;

[0032] Figure 7 A top view of a second embodiment of the material tray residue transfer device according to the present invention is shown;

[0033] Figure 8 A partial structural schematic diagram of the tray of a printing device suitable for the tray residue transfer device of the present invention is shown.

[0034] Figure 9A schematic diagram of the molding platform of a printing apparatus suitable for the material tray residue transfer device of the present invention is shown.

[0035] The above figures include the following reference numerals:

[0036] 10. Adhesive component; 11. Adhesive surface; 12. Pick-up handle; 13. Platform adapter; 14. Positioning side; 141. First side; 142. Second side; 143. Third side; 15. Transition side; 151. Fourth side; 152. Fifth side; 153. Sixth side; 16. Drainage through hole; 20. Material tray; 30. Molding platform. Detailed Implementation

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] like Figure 1 As shown, the present invention provides a method for transferring residue from a printing device's tray 20. The method includes: placing a residue transfer device in the tray 20; projecting light into the tray 20; and removing the residue transfer device and removing the cured layer when the actual light projection time reaches the predetermined light projection time.

[0039] The material tray residue transfer method of this invention utilizes a material tray residue transfer device to remove residue from the material tray. It does not rely on operator experience, reducing the risk of misoperation when manually removing the cured layer. This solves the problem in existing technologies where material tray cleaning operations easily damage the release film surface, extending the service life of the release film. Simultaneously, this transfer process eliminates the need for user contact with consumables, reducing the risk of harm to the human body from the slight toxicity of some consumables, and facilitates cleaning, thus improving the user experience.

[0040] Specifically, the residue transfer method of the present invention includes:

[0041] S1. Place the residue transfer device in the material tray 20;

[0042] S2. Start the cleaning function;

[0043] S3. Illuminate the material tray 20;

[0044] S4. Calculate the actual light projection duration and determine whether the actual light projection duration has reached the predetermined light projection duration (this can be determined manually or automatically by the controller).

[0045] S5. When the actual illumination duration reaches the predetermined illumination duration, the illumination is deemed complete and the illumination ends.

[0046] S6. Remove the material tray residue transfer device to remove the solidified layer carried out by the material tray residue transfer device.

[0047] In the step of illuminating the material tray 20, the material tray residue transfer method includes: using the entire area of ​​the printing area within the material tray 20 as the illuminating area of ​​the material tray 20 to receive the illuminating light; or dividing the printing area within the material tray 20 into multiple illuminating zones, and illuminating the multiple illuminating zones with different illuminating times.

[0048] When the projection area covers the entire printing area within the tray 20, the tray residue transfer device can be positioned anywhere. The best cleaning effect for the cured layer is achieved when the tray residue transfer device is placed at any of the four corners of the bottom surface of the tray 20 cavity, followed by the four edges of the bottom surface of the tray 20 cavity, and finally the center of the bottom surface of the tray 20 cavity.

[0049] Specifically, the structure of the material tray 20 of the present invention is as follows: Figure 8 As shown, the method for placing the material tray residue transfer device inside the material tray 20 is as follows: place the material tray residue transfer device at any one of the four corners of the bottom surface of the cavity of the material tray 20; and / or when the actual illumination duration reaches the predetermined illumination duration, lift the material tray residue transfer device at a predetermined speed.

[0050] When the printing area within the material tray 20 needs to be divided into multiple illumination zones, the method for dividing the multiple illumination zones is as follows: the bottom surface of the cavity of the material tray 20 is divided into multiple grid areas according to the grid division method, and the multiple grid areas are multiple illumination zones.

[0051] Specifically, when dividing the printing area of ​​the material tray 20 into multiple light-emitting zones, the printing area can be divided according to different strategies.

[0052] For example, the printing area can be divided into uniform halves, thirds, or quarters according to the grid division method; after the division is completed, only the areas with residue are illuminated according to the residue detection results.

[0053] For example, in the step of illuminating the material tray 20, the material tray residue transfer method includes: when there is residue in the material tray 20, dividing the printing area in the material tray 20 into a residue area with residue, a transferor area corresponding to the material tray residue transferor, and a retention area other than the residue area and the transferor area; controlling the illumination time of the residue area and the illumination time of the transferor area to be greater than the illumination time of the retention area; wherein, the residue area and the transferor area may overlap or not overlap.

[0054] Specifically, the cavity of the material tray 20 is rectangular, and any one of the four corners of the bottom surface of the cavity of the material tray 20 is defined as the transferor area; or the projection position of the forming platform 30 of the printing device on the material tray 20 is defined as the transferor area; or the transferor area is determined by real-time detection of the location of the material tray residue transferor.

[0055] Before placing the material tray residue transfer device into the material tray 20, the material tray residue transfer method includes: detecting whether there is residue in the material tray 20; when residue is detected in the material tray 20, reminding the user to place the material tray residue transfer device in the residue area where the residue is located.

[0056] In the step of illuminating the material tray 20, the method for transferring material tray residue includes: illuminating the residue area and not illuminating other areas; or illuminating the residue area and using a mesh-like perforated method to illuminate other areas to reduce material loss.

[0057] Since the adhesion between the cured layer and the release film at the bottom of the tray is basically the same, longer exposure in the transferor area will allow the residue transfer device to adhere more firmly to the cured layer, avoiding the problem of breakage when the cured layer is pulled up by the residue transfer device. Longer exposure in the residue area will increase the thickness of the residue area, making it easier to completely adhere the residue and improve the cleaning effect of the residue.

[0058] In the material tray residue transfer method of the present invention, when the material tray residue transfer device is placed in the material tray 20, the material tray residue transfer device is placed at the corner of the inside of the material tray 20; when the actual illumination time reaches the predetermined illumination time, the material tray residue transfer device is pulled up at a predetermined speed; during this process, it is necessary to reduce the tilt angle between the connection between the cured layer and the material tray residue transfer device and the bottom surface of the cavity of the material tray 20, and to pull up the material tray residue transfer device at a relatively gentle speed to increase the success rate of residue transfer.

[0059] Because existing printing equipment does not have a residue detection function, users need to manually check for residue, which is greatly affected by human judgment. To ensure the success rate of printing, the material tray platform needs to be cleaned before each use, which leads to a large consumption of consumables.

[0060] Therefore, before placing the residue transfer device into the tray 20, the residue transfer method of the present invention further includes: detecting the size of the residue in the tray 20, and determining whether the size of the residue will affect production based on the detection result; when it is determined that the size of the residue will affect production, performing the step of placing the residue transfer device into the tray; when it is determined that the size of the residue will not affect production, not performing the step of placing the residue transfer device into the tray. This reduces consumable consumption and increases the printing success rate.

[0061] The size of the residue can be its area or thickness, etc.

[0062] In the material tray residue transfer method of the present invention, the size of the residue in the material tray 20 can be detected by setting a detection component on the printing equipment.

[0063] Optionally, the detection component is at least one of a force sensor, an infrared sensor, a displacement sensor, an image sensor, and an ultrasonic sensor.

[0064] For example, when using a force sensor to detect the size of residue:

[0065] During the residue detection process, the molding platform 30 equipped with the material tray residue transfer device will slowly move and contact the molding surface inside the material tray 20. During this process, if the specified stroke is not reached, the force sensor located below the material tray 20 will show a certain reading, which can be used as the basis for residue detection judgment.

[0066] Specifically, four force sensors can be installed at the four corners of the bottom surface of the cavity of the material tray 20. When the molding platform descends into the material tray 20, if there is residue (such as 0.2mm high residue) in a certain area of ​​the material tray 20, the molding platform will hit the residue. At this time, one force sensor near the residue will show a certain reading, while the other three sensors will show no reading or a very small reading. This indicates that there is residue in the material tray 20 and the size of the residue will affect the printing effect, so the material tray 20 needs to be cleaned.

[0067] For example, when using infrared sensors to detect the size of residue:

[0068] In the absence of contact between the forming platform 30 and the material tray 20, an infrared sensor is used to detect the residue in the material tray 20.

[0069] Specifically, the infrared sensor has a transmitter and a receiver. Since the resin is transparent, if there is no residue in the material tray 20, the signal received by the receiver of the infrared sensor will be normal and will not be blocked. If there is residue in a certain area of ​​the resin in the material tray 20 (such as residue 0.2mm high), the signal emitted by the transmitter of the infrared sensor will be blocked and cannot be received by the receiver. It can be determined that there is residue, and the size of the residue will affect the printing effect, so the material tray 20 needs to be cleaned.

[0070] For example, when using an image sensor to detect the size of residue:

[0071] By comparing images captured by an image sensor with standard images, it is possible to determine whether there is residue and where the residue is located.

[0072] For example, when using ultrasonic sensors to detect the size of residue:

[0073] The presence and location of residue are determined by analyzing the echo signal of the emitted sound signal received by the ultrasonic sensor.

[0074] Optionally, the detection component is installed below the tray 20, or between the tray 20 and the release film within the tray 20, or on a tray platform having the tray 20.

[0075] like Figures 2 to 7 As shown, the present invention provides a tray residue transfer device, which is applicable to the above-mentioned tray residue transfer method. The tray residue transfer device is placed in the tray 20 by means of an external structure, or by means of manual placement in the tray 20, or by means of the forming platform 30 of the printing equipment. The tray residue transfer device includes: an adhesive component 10, on which an adhesive surface 11 for bonding with residue is provided.

[0076] like Figures 2 to 7 As shown, the material tray residue transfer device includes: a part-retrieving handle 12, which is connected to the adhesive part 10 and located on the side away from the adhesive plane 11 for manual gripping; or a platform adapter 13, which is connected to the adhesive part 10 and located on the side away from the adhesive plane 11 for connection to the molding platform 30.

[0077] Optionally, when the tray residue transferor includes a pick-up handle 12, the pick-up handle 12 is integrally formed with or detachably connected to the adhesive part 10; or when the tray residue transferor includes a platform adapter 13, the platform adapter 13 is integrally formed with or detachably connected to the adhesive part 10.

[0078] Thus, in the material tray residue transfer device of the present invention, the bonding surface 11 is used to bond with the residue to replace manual cutting; the picking handle or platform adapter 13 is mainly used for manual picking or connection to the machine. The process of picking out the residue in the material tray 20 using this material tray residue transfer device does not require the user to contact the consumables, reducing the damage to the human body caused by consumables (some consumables are slightly toxic), reducing the risk of misoperation when manually picking out the solidified layer, and making it easier to clean, improving cleaning efficiency, and increasing the service life of the material tray.

[0079] like Figures 2 to 7 As shown, the outer peripheral surface of the adhesive component 10 includes a positioning side 14 and a transition side 15 connected end to end. The positioning side 14 is used to contact and cooperate with the inner frame of the tray 20, and the transition side 15 is located on the side of the positioning side 14 closer to the center of the tray 20. In this way, the adhesive component 10 has a certain positioning function, which can make the center of gravity of the tray residue transferor fall within the illumination area of ​​the tray 20, preventing the tray residue transferor from being placed unevenly and thus improving the residue removal effect.

[0080] Specifically, the positioning side 14 includes a first side 141, a second side 142, and a third side 143 connected in sequence. The first side 141 and the third side 143 are mutually perpendicular planes, and the second side 142 is an inclined plane that is inclined to both the first side 141 and the third side 143. The transition side 15 includes a fourth side 151, a fifth side 152, and a sixth side 153 connected in sequence. The fourth side 151 and the sixth side 153 are mutually perpendicular planes, and the fifth side 152 is an arc surface that is tangent to both the fourth side 151 and the sixth side 153. The first side 141 and the fourth side 151 are mutually perpendicular and the first side 141 and the sixth side 153 are mutually parallel. The third side 143 and the sixth side 153 are mutually perpendicular and the first side 141 and the fourth side 151 are mutually parallel. The first side 141 and the third side 143 are used to contact the two sides of the same right angle on the bottom surface of the cavity of the material tray 20.

[0081] like Figures 5 to 7 As shown, the adhesive 10 is provided with a drainage hole 16 to reduce the tension and buoyancy of the liquid on the adhesive 10, which is conducive to the formation of a liquid layer in the middle that cannot be completely cured, thereby promoting the drainage speed and reducing the thickness of the cured layer.

[0082] Specifically, the drainage hole 16 can be of any shape, such as a round hole, a toothed hole, or a groove-shaped hole, or other structures that can increase drainage.

[0083] In addition, when using the material tray residue transfer device (especially when the adhesive 10 does not have a drain hole 16), the downward pressure of the adhesive 10 (which can be gravity, manual or mechanical) needs to be greater than the surface tension of the liquid.

[0084] like Figure 9 As shown, the material tray residue transfer device of the present invention can be assembled on the molding platform 30. The movement of the molding platform 30 itself is used to pull up and remove the cured layer, and to suspend the cured layer to save consumables. The material tray residue transfer device and the molding platform can be fixed by bonding, screw connection, or snap-fit ​​connection, etc.

[0085] The material tray residue transfer device of the present invention can also be used alone, that is, the material tray residue transfer device is manually placed on the material tray 20, and after successful curing, the material tray residue transfer device is manually removed and the cured layer is removed.

[0086] Preferably, the surface treatment process of the bonding surface 11 includes at least one of laser engraving, sandblasting, drilling, spraying, oxidation, passivation, and coating. This makes it easier to ensure the tightness of the bond between the bonded part 10 and the residue.

[0087] It should be noted that the structure of the material tray residue transfer device of the present invention is not limited to the structure shown in the accompanying drawings of the specification of the present invention, as long as it has an adhesive plane 11 and can realize the function of adhesive curing layer.

[0088] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0089] The present invention provides a tray residue transfer method for transferring residue within the tray 20 of a printing device. The method includes: placing a tray residue transfer device inside the tray; initiating a cleaning command; projecting light into the tray; determining whether the actual projection time has reached a predetermined projection time; and when the actual projection time has reached the predetermined projection time, removing the tray residue transfer device to remove the cured layer. This invention utilizes a tray residue transfer device to remove residue from the tray, eliminating reliance on operator experience and reducing the risk of misoperation when manually removing the cured layer. It also solves the problem of easily damaging the release film surface during tray cleaning operations in existing technologies, extending the service life of the release film. Furthermore, this transfer process eliminates the need for user contact with consumables, reducing the risk of harm to the human body from the slight toxicity of some consumables, and facilitating cleaning, thus improving the user experience.

[0090] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0091] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0092] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0093] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0094] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0095] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for transferring residue from a material tray, characterized in that, For transferring residue from the tray (20) of the printing equipment, the residue transfer method includes: The material tray residue transfer device is placed inside the material tray (20), wherein there is a gap between the material tray residue transfer device and the bottom surface of the material tray; Light is projected into the tray (20) to form a cured layer, and the residue and the cured layer are both bonded to the bonding plane (11) of the adhesive part (10) of the tray residue transfer device and the film of the tray (20); When the actual illumination time reaches the predetermined illumination time, remove the material tray residue transfer device and remove the solidified layer; In the step of illuminating the material tray (20), the method for transferring residue from the material tray includes: When there is residue in the tray (20), the printing area in the tray (20) is divided into a residue area with residue, and the illumination time of the residue area is configured to be sufficient to make all the residue adhere to the tray residue transfer device. Before placing the tray residue transfer device into the tray (20), the tray residue transfer method further includes: The size of the residue in the tray (20) is detected, and the size of the residue is determined based on the detection results to determine whether it will affect production. When it is determined that the size of the residue will affect production, the step of placing the residue transfer device in the tray (20) is performed; when it is determined that the size of the residue will not affect production, the step of placing the residue transfer device in the tray (20) is not performed.

2. The method for transferring residue from a material tray according to claim 1, characterized in that, In the step of illuminating the material tray (20), the method for transferring residue from the material tray includes: The entire area of ​​the printing region within the material tray (20) is used as the light-receiving area of ​​the material tray (20); or The printing area within the material tray (20) is divided into multiple illumination zones, and each of the multiple illumination zones is illuminated with a different illumination time.

3. The method for transferring residue from a material tray according to claim 2, characterized in that, The method for dividing the multiple light-emitting zones is as follows: the bottom surface of the cavity of the material tray (20) is divided into multiple grid areas according to the grid division method, and the multiple grid areas are the multiple light-emitting zones.

4. The method for transferring residue from a material tray according to claim 1, characterized in that, In the step of illuminating the material tray (20), the method for transferring residue from the material tray includes: When there is residue in the material tray (20), the printing area in the material tray (20) is divided into a residue area with residue, a transferor area corresponding to the material tray residue transferor, and a retention area other than the residue area and the transferor area. The illumination time of the residue area and the illumination time of the transferor area are both controlled to be greater than the illumination time of the retention area.

5. The method for transferring residue from a material tray according to claim 4, characterized in that, The cavity of the material tray (20) is rectangular, and the transferor area is defined by any one of the four corners of the bottom surface of the cavity of the material tray (20); or The projection position of the forming platform (30) of the printing device on the tray (20) is taken as the transferer area; or The transferor area is determined by real-time detection of the location of the residue transferor in the material tray.

6. The method for transferring residue from a material tray according to claim 1, characterized in that, Before placing the material tray residue transfer device in the material tray (20), the material tray residue transfer method includes: detecting whether there is residue in the material tray (20), and when residue is detected in the material tray (20), reminding the user to place the material tray residue transfer device in the residue area where the residue is located.

7. The method for transferring residue from a material tray according to claim 6, characterized in that, In the step of illuminating the material tray (20), the material tray residue transfer method includes illuminating the residue area.

8. The method for transferring residue from a material tray according to claim 1, 4, or 7, characterized in that, The method for transferring residue from the material tray also includes: Illuminate the area containing the residue, and do not illuminate other areas besides the area containing the residue; or, The area containing the residue is illuminated, and other areas are illuminated using a grid-like perforated pattern.

9. The method for transferring residue from a material tray according to claim 1, characterized in that, The method for placing the tray residue transfer device inside the tray (20) is as follows: the tray residue transfer device is placed at any one of the four corners of the bottom surface of the cavity of the tray (20); and / or When the actual illumination duration reaches the predetermined illumination duration, the material tray residue transfer device is lifted at a predetermined speed.

10. The method for transferring residue from a material tray according to claim 1, characterized in that, The size of the residue in the tray (20) is detected by a detection component, which is at least one of a force sensor, an infrared sensor, a displacement sensor, an image sensor, and an ultrasonic sensor.

11. The method for transferring residue from a material tray according to claim 10, characterized in that, The detection component is installed below the tray (20), or between the tray (20) and the release film inside the tray (20), or on the tray platform having the tray (20).

12. The method for transferring material tray residue according to any one of claims 1 to 11, wherein the method is applicable to a material tray residue transfer device, characterized in that, The material tray residue transfer device is placed in the material tray (20) by means of an external structure, or the material tray residue transfer device is placed in the material tray (20) by means of manual placement, or the material tray residue transfer device is placed in the material tray (20) by means of the forming platform (30) of the printing equipment; The tray residue transfer device includes: Adhesive component (10) having an adhesive surface (11) for bonding with residue.

13. The method for transferring residue from a material tray according to claim 12, characterized in that, The tray residue transfer device includes: A handle (12) is attached to the adhesive (10) and located on the side away from the adhesive plane (11) for manual gripping; or Platform adapter (13), which is connected to the adhesive (10) and located on the side away from the adhesive plane (11), is used for connection with the molding platform (30).

14. The method for transferring residue from a material tray according to claim 13, characterized in that, When the material tray residue transfer device includes the part-retrieving handle (12), the part-retrieving handle (12) is integrally formed with or detachably connected to the adhesive part (10); or When the material tray residue transfer device includes the platform adapter (13), the platform adapter (13) is integrally formed with or detachably connected to the adhesive (10).

15. The method for transferring residue from a material tray according to claim 12, characterized in that, The outer peripheral surface of the adhesive (10) includes a positioning side (14) and a transition side (15) connected end to end. The positioning side (14) is used to contact and cooperate with the inner frame of the tray (20). The transition side (15) is located on the side of the positioning side (14) near the center of the tray (20).

16. The method for transferring residue from a material tray according to claim 12, characterized in that, The adhesive component (10) is provided with a drainage hole (16).

17. The method for transferring residue from a material tray according to claim 12, characterized in that, The surface treatment process of the bonding plane (11) includes at least one of laser engraving, sandblasting, drilling, spraying, oxidation, passivation and coating processes.

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