3D printing equipment with stripping assembly

Abstract

The utility model discloses 3D printing equipment with a stripping assembly. The 3D printing equipment comprises a printing platform and a stripping assembly, the stripping assembly comprises a stripping part and an overturning part, the stripping part is used for stripping the workpiece from the printing platform, and the overturning part is used for overturning the workpiece; and the driving device is used for driving the stripping assembly and the printing platform to move relatively. When the 3D printing equipment with the stripping assembly is used for 3D printing, automatic stripping, collecting and discharging of 3D printing workpieces can be achieved, the workpieces are prevented from being stacked and extruded layer by layer, damage to 3D printing workpiece products is reduced, the separation success rate is increased, meanwhile, the workpieces can be effectively prevented from being attached to a scraper knife, and the working efficiency is improved. 3D printing workpieces formed through printing are rapidly collected and discharged, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a 3D printing device with a peeling component. Background Technique

[0002] 3D printing technology is a rapid prototyping technology that cures and sinters different materials such as plastic filaments, photosensitive resins, metal powders, and thermoplastic powders through fused deposition modeling, stereolithography, selective laser sintering, and powder hot melting, and layer by layer transforms a digital model into a solid object. Different from traditional machining, it belongs to an additive manufacturing process and is easy to manufacture parts with complex surface structures or hollow structures, and is widely used in the fields of automobiles, aerospace, medical industries, and construction.

[0003] After a 3D printed product is printed and formed, the product often adheres to the printing platform, and the product needs to be peeled off the printing platform.

[0004] In the prior art:

[0005] Document 1 (CN206264354U) discloses a stereolithography three-dimensional printing device and system capable of automatically and continuously printing. Its automatic printing and picking-up and collecting device 220 may include a material tank 221 for accommodating photosensitive resin, a lifting table 222 for connecting a formed workpiece 300, a coating squeegee 223 for spreading the photosensitive resin, an image exposure system 224 for curing the photosensitive resin, a jacking device 225 for separating the workpiece 300 from the lifting table 222, and a collecting squeegee 226 for scraping the workpiece 300 separated from the lifting table 222 off the lifting table 222. However, the jacking device 225 it adopts is multiple ejector rods that cooperate with the through holes on the lifting table 222. Since the contact area between the ejector rods and the workpiece is small, when performing the separation operation, the ejector rods cannot apply force to the whole workpiece, and the local pressure on the workpiece is relatively large, which is easy to pierce the workpiece. At the same time, for a workpiece with a bottom hollow structure, it is often difficult for the ejector rods to find a force application point. In addition, the ejector rods need to correspond to the through holes of the lifting table 222 one by one. A large number of ejector rods cooperate with the through holes, which is difficult to assemble. When in use, the ejector rods are generally immersed in the photosensitive resin. When foreign matters such as residues fall between the ejector rods, it is difficult to be discovered. Usually, the resin in the resin tank needs to be drained, and the maintenance is very troublesome. The residues are also easy to cause the ejector rods to be stuck with the through holes, resulting in equipment damage. The processing cost of the ejector rods is high. Even if one ejector rod is damaged, the entire jacking device 225 needs to be replaced. The collecting squeegee 226 is vertically arranged with the lifting table 222, and the resistance between the squeegee and the product is large, which is easy to cause damage to the squeegee and the product due to force, and the qualified rate is low.

[0006] Document 2 (CN105026131B) discloses an automatic removal of a 3D printer component, which uses a drive mechanism to drive a blade 20 across a printing surface 12 to engage and then remove the printed component. When the blade 20 of this structure is used for 3D printing, especially light-curing 3D printing equipment, a small amount of liquid resin remains on the printing surface and the bottom of the product when the workpiece is peeled off. The liquid resin causes the product to adhere to the blade bevel, resulting in the products peeled off by the previous printing to easily accumulate at the blade layer when printing in large quantities, causing the blade drive to jam and the product to be damaged. In addition, the product adhering to the blade also makes it difficult to unload the material, which is inefficient and affects the production progress.

[0007] Document 3 (CN114147967B) discloses a data processing method and system for a three-dimensional model, a pickup mechanism, and a 3D printing device, wherein the scraper member includes a mounting portion 91', a scraper body 92', a blade 93', and a storage portion 94, wherein the storage portion 94 is engaged with the blade 93', and the storage portion 94 is used to accommodate part of the 3D component previously scraped off during the movement of the scraper member to ensure the stability of the 3D component during the pickup process. This structure still has the problem that when the workpiece is peeled off, a small amount of liquid resin remains on the printing surface and the bottom surface of the product, and the liquid resin causes the product to adhere to the blade 93' and the storage portion 94, making the product easily damaged, and the product adhering to the blade also makes it difficult to unload.

[0008] Document 4 (CN214324201U) discloses a pickup mechanism and a 3D printing device applicable thereto, wherein the pickup mechanism includes a blade member and a stop member. The blade member has an inclined surface corresponding to the notch of the 3D component, which increases the contact area between the blade member and the 3D component during the pickup operation and reduces the risk of damage to the 3D component. The component platform includes a plurality of grooves 41, which are used to cooperate with the blade member. The technical solution has a stop member specifically cooperating with the blade member to prevent the 3D component from accumulating when the blade is collected and confining it on the component platform; and the printing platform has a complex groove structure. During 3D printing, especially light-curing 3D printing, the printed resin material is easily accumulated in the groove, causing the blade member to be easily stuck with the component platform.

[0009] Among the prior art of the above-mentioned 3D printing equipment, the existing push rod type automatic peeling device has a complex structure, is difficult to maintain, and has problems such as uneven force on the product and low pass rate; and the existing ordinary scraper type automatic peeling device has a large cutting resistance, and it is not easy to separate the product from the printing platform. When a small amount of liquid resin or adhesive remains on the printing platform and the bottom of the product, the liquid resin or adhesive will cause the product to adhere to the inclined surface of the blade. Especially when printing a large number of workpieces at a time, it is easy for products to pile up and squeeze layer by layer, and the scraper and the printing platform to get stuck, resulting in damage to the product and equipment. In addition, the product adhering to the blade also makes it difficult to unload the material, which is inefficient and affects the production progress. Utility Model Content

[0010] To solve the above problems, the present utility model provides a 3D printing device with a peeling component, which can reduce the cutting resistance of the scraping knife to the whole workpiece during separation, and flip the workpiece to prevent the workpiece from piling up layer by layer. At the same time, during the stereolithography 3D printing of a large number of workpieces at one time, it can also prevent the workpiece from adhering to the scraping knife, greatly improving the separation success rate and production efficiency.

[0011] The present utility model provides a 3D printing device with a peeling component, comprising:

[0012] A printing platform;

[0013] A peeling component, including a peeling part and a flipping part. The peeling part is used to peel the workpiece from the printing platform, and the flipping part is used to flip the peeled workpiece. The flipping part is arranged behind the peeling part along the peeling direction;

[0014] A driving device, which is used to drive the relative movement of the peeling component and the printing platform, peel, collect and discharge the workpiece.

[0015] Furthermore, the peeling scraping knife further includes a mounting part. The peeling part and the flipping part are detachably mounted on the mounting part. The peeling part includes a scraping knife member that is inclined as a whole relative to the printing platform. The peeling part further includes a support member, and the support member can drive the scraping knife member to rotate, that is, the scraping knife member is rotatably mounted on the mounting part through the support member, so that the peeling part has two working states: peeling and discharging.

[0016] Furthermore, the peeling part has two working states: peeling and discharging. The included angle between the contact part of the scraping knife member and the printing platform is smaller than the corresponding included angle when the working state of the peeling part is the discharging state. Specifically, when the working state is the peeling state, the included angle between the blade and the horizontal plane of the printing platform is 10° to 60°, preferably 15° to 30°; when the working state is the discharging state, the included angle between the blade and the horizontal plane of the printing platform is 60° to 90°, preferably 75° to 90°.

[0017] Furthermore, the flipping part is vertically arranged, and the cross-section on the side facing the workpiece to be peeled is integrally an arc surface. Specifically, the flipping part can adopt an integrally formed arc-shaped plate or a polygonal structure with an arc-shaped cross-section formed by splicing multiple rectangular plates. When adopting the polygonal structure, the advantage is that some rectangular plates can be replaced separately when damaged or in need of cleaning, without replacing the whole flipping part.

[0018] Alternatively, the cross-section of the flipping part on the side facing the workpiece to be peeled is an obtuse-angled butt joint, with two rectangular plates butt-jointed at an angle, and the included angle between the two plates is greater than 90°.

[0019] Alternatively, the flipping part includes a vertically arranged mounting plate, on which at least one flap is rotatably provided, and the flap is driven by a motor to swing up and down around a rotating shaft; or a material pushing gear is provided on the mounting plate, and the material pushing gear is driven by a motor to rotate.

[0020] Further, the 3D printing device is of the light-curing type and further includes a printing device, and the printing device can adopt an ultraviolet light irradiation device; and a resin tank for accommodating photosensitive resin.

[0021] Further, the printing platform has a lifting device and a carrying platform, and the carrying platform is detachably mounted on the lifting device; and a plurality of through holes are distributed on the carrying platform.

[0022] Further, the 3D printing device further includes a control system and a frame. The frame includes a base and a mounting frame arranged above the base. The resin tank is arranged on the upper plane of the base, and the printing device is arranged on the mounting frame. The control system controls to automatically complete the printing and unloading operations.

[0023] Beneficial effects: The present utility model adopts a peeling assembly provided with a peeling part and a flipping part, and realizes the separation of the 3D printed product and the printing platform through the mutual cooperation of the two. The structure is simple and reliable, and the cost is low. It can reduce the damage of the 3D printed product and equipment failures, improve the separation success rate, and at the same time quickly collect and reliably unload the 3D printed product formed by printing, improving the production efficiency.

[0024] The peeling part of the present utility model adopts an inclined blade, which can reduce the resistance between the peeling shovel and the workpiece, easily peel the workpiece from the printing platform, and at the same time will not damage the workpiece; by arranging a flipping part behind the peeling part, the peeled workpiece can be flipped. During single-batch large-quantity printing, the flipping part flips the workpieces peeled in the front row to the back row, so as to realize the rolling of the workpieces along the blanking direction, thereby ensuring that the workpieces will not be stacked layer by layer during large-batch printing, and there will be no problems such as workpiece damage caused by mutual extrusion of workpieces and blade jamming equipment failures. At the same time, in the case of 3D printing such as light curing, it can effectively prevent problems such as the product surface remaining uncured resin and sticking to the blade during blanking, improving the blanking efficiency.

[0025] The 3D printing device with a peeling component of the utility model has a better technical effect for the photocuring 3D printing device. Compared with other 3D printing methods such as molten deposition, some uncured printing resin liquid will remain on the surface of the workpiece and the printing platform after printing. The structure of the utility model can automatically realize the peeling and collection of the printed workpiece in one go, effectively avoiding the existing technical problems such as the workpiece adhering to the blade and the difficulty in unloading due to the residual printing resin liquid when the workpiece is removed, and the blade jamming. While realizing automatic collection and high unloading efficiency, it achieves a satisfactory separation success rate and unloading rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The utility model is a 3D printing device with a peeling component;

[0027] Figure 2 It is a schematic diagram of the peeling state of the peeling component of the utility model;

[0028] Figure 3 It is a schematic diagram of the unloading state of the stripping component of the utility model;

[0029] Figure 4 It is a front view of the stripping assembly of the utility model;

[0030] Figure 5 is a schematic diagram of a stripping assembly of Example 2 of the utility model;

[0031] Figure 6 It is a schematic diagram of the flipping part of Example 2 of the utility model;

[0032] Figure 7 is a schematic diagram of a peeling assembly using a paddle according to Embodiment 3 of the present utility model;

[0033] Figure 8 It is a schematic diagram of a stripping assembly using a material-shifting gear according to Embodiment 3 of the present utility model;

[0034] Figure 9 It is a structural schematic diagram of the 3D printing product of the utility model.

[0035] Among them: 10-3D printing equipment, 100-frame, 110-base, 120-mounting frame, 200-3D printing product, 300-peeling assembly, 310-peeling part, 320-flipping part, 321-flipping plate, 322-mounting plate, 323-paddle, 324-paddle gear, 330-mounting part, 311-support part, 312-shovel part, 400-printing platform, 410-lifting device, 420-carrying platform, 430-guide plate, 500-printing device, 600-driving device. DETAILED DESCRIPTION

[0036] The following specific embodiments illustrate the implementation manners of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification.

[0037] In the following description, reference is made to the accompanying drawings, which describe several embodiments of the present application. It should be understood that other embodiments may also be used, and mechanical compositions, structures, electrical aspects, and operational changes may be made without departing from the spirit and scope of the present disclosure. The following detailed description should not be considered restrictive, and the scope of the embodiments of the present application is only defined by the claims of the published patent. The terms used herein are only for describing specific embodiments and are not intended to limit the present application. Spatially related terms, such as "upper", "lower", "left", "right", "below", "beneath", "lower part", "above", "upper part", etc., may be used in the text to facilitate the description of the relationship between one element or feature shown in the drawings and another element or feature.

[0038] Although in some instances the terms first, second, etc. are used herein to describe various elements or parameters, these elements or parameters should not be limited by these terms. These terms are only used to distinguish one element or parameter from another. For example, the first moving component may be referred to as the second moving component, and similarly, the second moving component may be referred to as the first moving component, without departing from the scope of the various described embodiments. The first moving component and the second moving component both describe a moving component, but unless the context clearly indicates otherwise in some other way, they are not the same moving component. Similar situations also include the first guide rail and the second guide rail, or the first driving component and the second driving component.

[0039] Furthermore, as used herein, the singular forms "a", "an", and "the" are also intended to include the plural forms unless the context indicates otherwise. It should be further understood that the terms "comprising", "including" indicate the presence of the described features, steps, operations, elements, components, items, types, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, types, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or meaning any one or any combination. Thus, "A, B, or C" or "A, B, and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A, B, and C". An exception to this definition only occurs when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0040] Figure 9 It is a 3D printing product 200 of the present utility model, specifically related to a dental appliance.

[0041] Example 1

[0042] Figures 1-4 It is a schematic structural diagram of a 3D printing device for a peeling component of the present utility model. Refer to Figure 1 , the 3D printing device 10 includes a control system (not shown in the figure), a frame 100, a resin tank (not shown in the figure), a peeling component 300, a printing platform 400, a printing device 500 and a driving device 600. The frame 100 includes a base 110 and a mounting frame 120 arranged above the base. The resin tank (not shown in the figure) is arranged on the upper plane of the base and is used for containing a resin solution as a printing substrate. The printing device 500 is arranged on the top of the mounting frame and is used for curing and forming by ultraviolet light irradiation. The peeling component 300 separates the printed product from the printing platform 400 and discharges the material, and the control system controls to automatically complete the above operations; the 3D printing device further includes an automatic liquid supplementing device for automatically supplementing photosensitive resin to the resin tank 200.

[0043] The printing platform 400 has a lifting device 410, a bearing table 420 and a guide plate 430 placed obliquely. The bearing table 420 is detachably installed on the lifting device 410. A plurality of through holes are distributed on the bearing table 420. The guide plate 430 is arranged on the mounting frame 120 and is used for guiding and discharging workpieces; the lifting device 410 has a vertical guiding mechanism and a lifting driving mechanism. The vertical guiding mechanism is connected to the mounting frame 120, and the lifting driving mechanism drives the bearing table 420 to lift along the vertical guiding mechanism on the mounting frame 120. The lifting driving mechanism can be a threaded lead screw mechanism, a cylinder or a hydraulic cylinder, etc. The vertical guiding mechanism 411 can be a slide rail, a guiding column or a dovetail groove, etc.

[0044] Figures 2-3 It is a schematic structural diagram of the peeling component 300 of the 3D printing device 10 of the present utility model. The peeling component 300 includes a peeling part 310, a flipping part 320 and a mounting part 330. Among them, the peeling part 310 is used for peeling the workpiece from the printing platform 400, and the flipping part 320 is used for flipping the peeled workpiece. The peeling part 310 and the flipping part 320 are detachably installed on the mounting part 330; the purpose of setting the flipping part is to flip the workpieces peeled in the front row to the back row when peeling and discharging the workpieces, so as to realize the rolling of the workpieces along the discharging direction on the peeling component 300, so as to ensure that the workpieces will not be stacked layer by layer during mass printing, and there will be no problems such as workpiece damage caused by mutual extrusion of workpieces and damage of the scraping knife and equipment jamming.

[0045] The stripping part 310 has a support member 311 and a scraper member 312 that is inclined relative to the printing platform as a whole. The scraper member 312 is rotatably mounted on the mounting part 330 through the support member 311. The stripping part 310 has two working states: stripping and blanking. When the working state is the stripping state (see Figure 2 ), the included angle between the scraper member 312 and the horizontal plane of the printing platform 400 is 10° to 60°, preferably 15° to 30°. When the angle is less than 10°, the workpiece is not easily flipped by the flipping part 320. When the angle is greater than 60°, the cutting resistance between the workpiece and the blade 312 increases, easily causing damage to the workpiece. When the working state is the blanking state (see Figure 3 ), the scraper member 312 is located above the material guiding plate 430. The included angle between the scraper member 312 and the horizontal plane of the printing platform 400 is 60° to 90°, preferably 75° to 90°. The workpiece falls onto the material guiding plate 430 under the action of gravity, improving the blanking rate of the workpiece on the stripping part 310.

[0046] The flipping part 320 is vertically arranged, and the cross-section on the side facing the workpiece to be stripped is integrally arc-shaped. Specifically, the flipping part 320 can adopt an integral arc-shaped plate or a polygonal structure with an integrally arc-shaped cross-section formed by splicing multiple rectangular plates. When adopting the polygonal structure, the advantage is that some rectangular plates can be replaced individually due to damage or the need for cleaning, without replacing the entire flipping part. When applied to mass printing, the separation success rate and blanking rate of the workpiece can reach 100%.

[0047] The driving device 600 is arranged on the mounting frame 120 and is used to drive the stripping scraper 300 to reciprocate along the horizontal plane of the printing platform 400. The driving device 600 can be a screw rod mechanism, a belt mechanism, etc.

[0048] Embodiment 2

[0049] The 3D printing device 10 includes a control system, a frame 100, a resin tank, a stripping assembly 300, a printing platform 400, a printing device 500, and a driving device 600. The frame 100 includes a base 110 and a mounting frame 120 arranged above the base. The resin tank is arranged on the upper plane of the base and is used to hold the resin solution as the printing substrate. The printing device 500 is arranged at the top of the mounting frame and is used for ultraviolet light irradiation curing and forming. The stripping assembly 300 separates the printed product from the printing platform 400 and discharges the material. The control system controls to automatically complete the above operations; the 3D printing device also includes an automatic liquid replenishing device for automatically replenishing photosensitive resin to the resin tank 200.

[0050] The printing platform 400 has a lifting device 410, a bearing table 420, and an inclined material guiding plate 430. The bearing table 420 is detachably mounted on the lifting device 410. A plurality of through holes are distributed on the bearing table 420, and the material guiding plate 430 is arranged on the mounting frame 120. The lifting device 410 has a vertical guiding mechanism and a lifting driving mechanism. The vertical guiding mechanism is connected to the mounting frame 120, and the lifting driving mechanism drives the bearing table 420 to lift along the vertical guiding mechanism on the mounting frame 120. The lifting driving mechanism can be a threaded lead screw mechanism, a cylinder, a hydraulic cylinder, etc. The vertical guiding mechanism 411 can be a slide rail, a guiding column, a dovetail groove, etc.

[0051] The peeling assembly 300 includes a peeling part 310, a flipping part 320, and a mounting part 330. The peeling part 310 is used to peel the workpiece from the printing platform 400, and the flipping part 320 is used to flip the peeled workpiece. The peeling part 310 and the flipping part 320 are detachably mounted on the mounting part 330. The purpose of setting the flipping part is to flip the workpiece peeled in the front row to the back row when peeling the workpiece and discharging it, so as to realize the rolling of the workpiece along the discharging direction on the peeling assembly 300, so as to ensure that the workpieces will not be stacked layer by layer during large - batch printing, and will not cause damage to the workpieces due to mutual extrusion of the workpieces and damage to the scraping knife and the equipment due to jamming.

[0052] The peeling part 310 has a support member 311 and a scraping knife member 312 that is inclined relative to the overall printing platform. The scraping knife member 312 is rotatably mounted on the mounting part 330 through the support member 311. The peeling part 310 has two working states: peeling and discharging. When the working state is the peeling state (see Figure 2 ), the included angle between the scraping knife member 312 and the horizontal plane of the printing platform 400 is 10° - 60°, preferably 15° - 30°. When the working state is the discharging state (see Figure 3 ), the scraping knife member 312 is located above the material guiding plate 430, and the included angle between the scraping knife member 312 and the horizontal plane of the printing platform 400 is 60° - 90°, preferably 75° - 90°.

[0053] The flipping part 320 includes two flipping plates 321. The two ends of the flipping plates are detachably mounted on the mounting part 330. The two flipping plates 321 are angularly connected to each other (see Figures 5-6 ). The opening faces the side of the workpiece to be peeled. When the included angle between the two plates is greater than 90°, the separation success rate and the discharging rate of the workpiece can reach 100%. When the included angle between the two plates is less than 90°, the separation success rate of the workpiece is 95% and the discharging rate is 98%.

[0054] The applicant conducted experiments on the separation success rate and the discharging rate of the flipping parts with different cross - sectional structures, and obtained the following experimental results:

[0055] Table 1 Experimental results of separation success rate and material removal rate of flip parts with different cross-sectional structures

[0056] Cross-sectional structure of the flipping part Arc Obtuse-angle joint Acute-angle joint Vertical plane Separation success rate (%) 100 100 95 85 Blank cutting rate (%) 100 100 98 82

[0057] Example 3

[0058] The 3D printing device 10 includes a control system, a frame 100, a resin tank, a stripping assembly 300, a printing platform 400, a printing device 500 and a driving device 600. The frame 100 includes a base 110 and a mounting frame 120 arranged above the base. The resin tank is arranged on the upper plane of the base for containing a resin solution as a printing substrate. The printing device 500 is arranged on the top of the mounting frame for ultraviolet light irradiation curing and molding. The stripping assembly 300 separates the printed product from the printing platform 400 and unloads the material. The control system controls the above operations to be automatically completed. The 3D printing device also includes an automatic liquid replenishing device for automatically replenishing the photosensitive resin to the resin tank 200.

[0059] The printing platform 400 has a lifting device 410, a load-bearing platform 420 and an inclined material guide plate 430. The load-bearing platform 420 can be detachably installed on the lifting device 410. A plurality of through holes are distributed on the load-bearing platform 420. The material guide plate 430 is arranged on the mounting frame 120. The lifting device 410 has a vertical guide mechanism and a lifting drive mechanism. The vertical guide mechanism is connected to the mounting frame 120. The lifting drive mechanism drives the load-bearing platform 420 to lift and lower along the vertical guide mechanism on the mounting frame 120. The lifting drive mechanism can be a threaded screw mechanism, a cylinder or a hydraulic cylinder, etc. The vertical guide mechanism 411 can be a slide rail, a guide column or a dovetail groove, etc.

[0060] Figures 2-3 1 is a schematic diagram of the structure of the stripping assembly 300 of the 3D printing device 10 of the utility model. The stripping assembly 300 includes a stripping portion 310, a flipping portion 320 and a mounting portion 330, wherein the stripping portion 310 is used to strip the workpiece from the printing platform 400, and the flipping portion 320 is used to flip the stripped workpiece, and the stripping portion 310 and the flipping portion 320 are detachably mounted on the mounting portion 330.

[0061] The stripping part 310 has a support member 311 and a scraper member 312 which is inclined relative to the printing platform as a whole. The scraper member 312 is rotatably mounted on the mounting part 330 through the support member 311. The stripping part 310 has two working states: stripping and unloading. When the working state is the stripping state (see Figure 2 ), the angle between the scraper member 312 and the horizontal plane of the printing platform 400 is 10° to 60°, preferably 15° to 30°, when the working state is the material feeding state (see Figure 3) The blade member 312 is located above the material guide plate 430, and the angle between the blade member 312 and the horizontal plane of the printing platform 400 is 60° to 90°, preferably 75° to 90°.

[0062] The flipping part 320 includes a mounting plate 322 and a flipper 323. The mounting plate 322 is vertically and detachably mounted on the mounting part 330. At least one flipper 323 is rotatably provided on the mounting plate 322, and the flipper is driven by a motor to swing up and down around a rotating shaft (see Figure 7 ); or a material feeding gear 324 is provided on the mounting plate 322, and the material feeding gear is driven by a motor to rotate (see Figure 8 ).

[0063] The above embodiments are only illustrative of the principles and effects of the present application, and are not used to limit the present application. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present application should still be covered by the claims of the present application.

Claims

1. A 3D printing device having a peeling component, characterized in that: include: Printing platform; The peeling assembly comprises a peeling part and a flipping part, wherein the peeling part is used to peel the workpiece from the printing platform, and the flipping part is used to flip the workpiece; The driving device is used to drive the peeling assembly and the printing platform to move relative to each other.

2. The 3D printing device according to claim 1, characterized in that: The stripping assembly also includes a mounting portion, and the stripping portion and the turning portion are detachably mounted on the mounting portion.

3. The 3D printing device according to claim 1, characterized in that: The stripping portion includes a scraper member which is inclined relative to the entire printing platform.

4. The 3D printing device according to claim 3, characterized in that: The stripping part also includes a support member, and the support member can drive the scraper member to rotate, so that the stripping part has two working states: stripping and feeding.

5. The 3D printing device according to claim 4, characterized in that: When the peeling portion is in the peeling state, the angle between the scraper member and the contact portion of the printing platform is smaller than the corresponding angle when the peeling portion is in the feeding state.

6. The 3D printing device according to claim 1, characterized in that: The flipping part is vertically arranged, and its cross section facing the workpiece to be peeled off is an overall arc surface or its cross section facing the workpiece to be peeled off is an angle joint.

7. The 3D printing device according to claim 6, characterized in that The corner joint is an obtuse angle joint.

8. The 3D printing device according to claim 1, characterized in that: The flipping part comprises a vertically arranged mounting plate, on which a paddle is arranged, and the paddle is driven by a motor to swing up and down; or a paddle gear is arranged on the mounting plate, and the paddle gear is driven to rotate by a motor.

9. The 3D printing device according to claim 1, characterized in that: The 3D printing device is of a light-curing type and also includes a printing device, which can use an ultraviolet light irradiation device; and a resin tank for accommodating photosensitive resin.

10. The 3D printing device according to claim 1, characterized in that: The printing platform comprises a lifting device and a bearing platform, and the bearing platform is detachably mounted on the lifting device.

11. The 3D printing device according to claim 1, characterized in that: It also includes a material guide plate, which is arranged on the unloading side of the printing platform.

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