A material stripping mechanism based on 3D printer

Abstract

The invention discloses a material stripping mechanism based on a 3D printer, which relates to the technical field of 3D printing. The mechanism comprises a base plate, a movable plate is arranged above the base plate, two upright posts are arranged above the base plate, a cross bar is arranged on one side of the upright post, a printing plate is arranged above the movable plate, an injection head is arranged above the printing plate, the injection head slides freely above the cross bar, an electric screw is arranged inside the movable plate, both ends of the electric screw are rotatably connected with the base plate, a fixed shaft is arranged above the movable plate, the fixed shaft comprises an arc portion and a flat portion, a cylinder is arranged on the outer wall of the fixed shaft and rotates relatively with the cylinder, one end of the cylinder is rotatably connected with the printing plate, a swing unit is arranged below the printing plate and drives the bottom surface of the printing plate to intermittently contact with the top surface of the movable plate, the swing unit causes a gap to be generated between the bottom of the model and the surface of the printing plate, in this device, the model and the printing plate are stably and quickly separated, and the damage to the surface of the printing plate is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of 3D printing, in particular to a material stripping mechanism used based on a 3D printer. Background Art

[0002] 3D printing technology is a high-tech process that converts digital models directly into physical entities. By using computer-aided design software to create a three-dimensional model of an object and inputting it into a 3D printer for physical construction, a lot of time and labor costs can be saved.

[0003] In the actual use of 3D printers, due to the thermal properties of resin materials, the heated resin raw materials will gradually accumulate on the printing bed of the machine. As the weight increases and the printing work is completed, the product generally needs to be left to cool to allow the material to completely solidify. After cooling, the bottom of the consumables will adhere to the printing bed. Currently, the stripping process on the market mostly requires the use of additional disassembly tools to demold the bottom of the finished product from the printing bed, such as blades, tweezers, pliers, etc. These tools usually go directly into the gap between the model and the printing bed, which is not only troublesome to operate, but also easy to cause irreversible damage to the surface of the printing bed, which may reduce the printing accuracy of subsequent use.

[0004] To this end, the present invention proposes a material stripping mechanism based on a 3D printer. Summary of the invention

[0005] The object of the present invention is to provide a material stripping mechanism for use with a 3D printer to solve the problems raised in the above background technology. To achieve the above object, the present invention provides the following technical solution: a material stripping mechanism for use with a 3D printer, comprising a base plate, a movable plate is disposed above the base plate, two columns are disposed above the base plate, a cross bar is disposed on one side of the column, a printing plate is disposed above the movable plate, an injection head is disposed above the printing plate, and the injection head slides freely above the cross bar,

[0006] An electric screw is provided inside the movable plate, and both ends of the electric screw are rotatably connected to the base plate. A fixed shaft is provided above the movable plate, and the fixed shaft includes an arc portion and a flat portion. A cylinder is provided on the outer wall of the fixed shaft and rotates relatively therewith, and one end of the cylinder is rotatably connected to the printing plate. A swing unit is provided below the printing plate to drive the bottom surface of the printing plate to intermittently contact the top surface of the movable plate, and the swing unit generates a gap between the bottom of the model and the surface of the printing plate.

[0007] A clamping unit for clamping the model is provided above the printing plate, and the clamping unit cooperates with the swing unit to separate the bottom of the model from the surface of the printing plate.

[0008] Preferably, the swing unit includes a rotating plate on the outer wall of the cylinder, a box body is provided outside the rotating plate, the top surface of the box body is fixedly connected to the printing plate, a counterweight block is provided on the outer wall of the box body, and when the vertical lines of the rotating plate and the counterweight block are on the same horizontal line, the printing plate and the movable plate are parallel to each other, and an air inlet pipe is provided on the outer wall of the box body, and the gas passing through the end of the air inlet pipe acts on the side area of ​​the rotating plate.

[0009] Preferably, the rotating plate includes a magnetic part and a handle part, an electromagnet is provided directly below the magnetic part, the electromagnet passes through the movable plate, a fixed cylinder is provided on the outer wall of the electromagnet, a magnetic block is provided on the inner wall of the fixed cylinder, and when the electromagnet is energized, the upper end of the electromagnet and the magnetic part have a mutually attractive magnetic force, and the lower end of the electromagnet and the magnetic block have a mutually repulsive force, which pushes the bottom raised part of the electromagnet to contact the bottom surface of the movable plate. In this state, the movable plate and the printing plate are parallel to each other.

[0010] Preferably, the clamping unit includes two clamping handles located above the base plate, a connecting tube is provided on one side of the clamping handle, a bending rod is provided on the inner wall of the connecting tube, a sliding groove for the bending rod to slide is provided inside the base plate, a special-shaped rod is provided on one side of the bending rod, a rack 1 is provided on the end of the special-shaped rod, a gear meshing with the rack 1 is provided on one side of the rack 1, a rack 2 meshing with the rack 2 is provided on one side of the gear, a shaft is provided on the inner wall of the gear, the shaft passes through the base plate and is rotatably connected with the base plate, and a motor is provided at the bottom end of the shaft.

[0011] Preferably, a fan is provided at the upper end of the shaft body, a transfer box is provided on one side of the fan, a heating tube is provided inside the transfer box, an air pipe 1 is provided at one end of the heating tube, an end of the air pipe 1 is connected with an air inlet pipe, a connecting pipe connected thereto is also provided on the outer wall of the box body, and an air cavity is provided at the end of the connecting pipe.

[0012] Preferably, the air cavity is in the shape of a bent strip, and the top surface of the air cavity is in contact with the bottom surface of the printing plate.

[0013] Preferably, a cooling cylinder is further provided inside the transfer box, and an air pipe 2 is provided at one end of the cooling cylinder, and one end of the air pipe 2 is connected to the connecting cylinder. The clamping handle includes a clamping block 1 and a clamping block 2, and the clamping block 2 is located inside the clamping block 1 and slides relatively thereto, and the inner wall of the clamping block 1 is provided with a plurality of through holes.

[0014] Preferably, a spring 1 is provided at the end of the clamp block 2, a spring 2 is provided inside the connecting tube, and both ends of the spring 2 are fixedly connected to the bending rod and the clamp block 1 respectively.

[0015] The present invention has at least the following beneficial effects:

[0016] 1. In the present invention, when the electromagnet is powered off, the started motor drives the fan to inject air into the heating cylinder inside the transfer box. After the heated air enters the interior of the box body, the rotating plate is driven to rotate with the cylinder on the fixed axis, thereby breaking the balance of the corresponding two sides of the fixed axis, driving the printing plate and the cylinder to deviate at an angle in an inclined direction on the arc surface part of the fixed axis. At the same time, the interior of the box body and the air cavity will be filled with hot air. The whole process of hot air flow conducts good heat to the printing plate, so that the printing plate heats up rapidly. At the same time, the clamping handle stably clamps the printed model. This step can ensure that the model is in a static state above the printing plate, so it cooperates with the heating and deviation of the printing plate to gradually form a gap between the bottom of the model and the printing plate until it is completely separated. Compared with the prior art, the model and the printing plate can be separated stably and quickly without the help of any tools, reducing the damage to the surface of the printing plate.

[0017] 2. In the present invention, another part of the gas generated by the fan enters the cooling cylinder for cooling treatment, and enters the interior of the connecting cylinder and the clamping block 1 along the air pipe 2, and is finally discharged outward from the through hole on the surface of the clamping block 1. When the clamping handle clamps the model, this part of the cold air will spread to the outer wall and bottom of the model, thereby increasing the temperature difference between the bottom of the model and the printing plate in the heated state, further reducing the adhesion between the model and the printing plate, and making the two easier to separate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a structural schematic diagram of another angle of the present invention;

[0020] Figure 3 For the present invention Figure 2 A magnified view of the structure of the middle A area;

[0021] Figure 4 It is a side sectional view of the overall structure of the present invention;

[0022] Figure 5 For the present invention Figure 4 A magnified view of the structure of the middle B region;

[0023] Figure 6 It is a cross-sectional view of the swing unit structure of the present invention;

[0024] Figure 7 It is a cross-sectional view of the transfer box structure of the present invention;

[0025] Figure 8 For the present invention Figure 7 A magnified view of the structure of the middle C region;

[0026] Fig. 9This is a cross-sectional view of the clamping handle structure of the present invention;

[0027] Fig.10 For the present invention Figure 5 Comparison diagram of the electromagnet in the power-off state.

[0028] In the figure: 1-base plate; 2-moving plate; 3-column; 4-cross bar; 5-printing plate; 6-injection head; 7-electric screw; 8-fixed shaft; 801-arc portion; 802-straight portion; 9-cylinder; 10-swing unit; 1001-rotating plate; 1002-box body; 1003-counterweight block; 1004-intake pipe; 11-clamping unit; 1101-clamping handle; 1102-connecting cylinder; 1103-bending rod; 1104-slide groove; 1105-special-shaped rod ;1106-rack one;1107-gear;1108-rack two;1109-shaft;11010-motor;12-magnetic part;13-handle;14-electromagnet;15-fixed cylinder;16-magnetic block;17-fan;18-transfer box;19-heating cylinder;20-air pipe one;21-connecting pipe;22-air cavity;23-cooling cylinder;24-air pipe two;25-clamp one;26-clamp two;27-through hole;28-spring one;29-spring two. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-10 The present invention provides a technical solution: a material stripping mechanism based on a 3D printer, comprising:

[0031] Embodiment 1,

[0032] See also Figure 1-5, substrate 1, a movable plate 2 is provided above the substrate 1, two columns 3 are provided above the substrate 1, the bottom ends of the two columns 3 are fixedly connected to the substrate 1, a cross bar 4 is provided on one side of the column 3 and fixedly connected thereto, a printing plate 5 is provided above the movable plate 2, an injection head 6 is provided above the printing plate 5, the injection head 6 slides freely in the left and right directions above the cross bar 4, an electric screw 7 is provided inside the movable plate 2 and is threadedly connected thereto, and both ends of the electric screw 7 are rotatably connected to the substrate 1; when the printer is working, the electric screw 7 will automatically start to drive the movable plate 2 and the printing plate 5 to move in the front and rear directions, and at the same time, the injection head 6 will also heat the wire to move in the left and right directions above the printing plate 5, and the final required model has been obtained. The above is the prior art, and there are traces to be followed in related fields.

[0033] See also Figure 1-6 In this solution, a fixed shaft 8 is provided above the movable plate 2 and fixedly connected thereto, the fixed shaft 8 includes an arc portion 801 and a straight portion 802, a cylinder 9 is provided on the outer wall of the fixed shaft 8 and rotates relatively thereto, one end of the cylinder 9 is rotatably connected to the printing plate 5, a swing unit 10 is provided below the printing plate 5 for driving the bottom surface of the printing plate 5 to intermittently contact the top surface of the movable plate 2, the swing unit 10 creates a gap between the bottom of the model and the surface of the printing plate 5, a clamping unit 11 for clamping the model is provided above the printing plate 5, the clamping unit 11 cooperates with the swing unit 10 to separate the bottom of the model from the surface of the printing plate 5;

[0034] The swing unit 10 is used to drive the printing plate 5 to deviate in the left-right direction on the fixed axis 8. At the same time, the clamping unit 11 stably clamps the side of the cooled model, so that the model is in a static state above the printing plate 5, so that a stable and rapid separation effect is achieved between the two. The operation is simple and the damage to the surface of the printing plate 5 can be minimized.

[0035] See also Figure 5-6 The swing unit 10 includes a rotating plate 1001 on the outer wall of the cylinder 9, the rotating plate 1001 is fixedly connected to the cylinder 9, a box body 1002 is arranged outside the rotating plate 1001, the rotating plate 1001 can rotate freely inside the box body 1002 along with the cylinder 9, the top surface of the box body 1002 is fixedly connected to the printing plate 5, a counterweight block 1003 is arranged on the outer wall of the box body 1002 and is fixedly connected thereto, when the vertical lines of the rotating plate 1001 and the counterweight block 1003 are on the same horizontal line, the printing plate 5 and the moving plate 2 are parallel to each other, (refer to Figure 4 and Figure 5The outer wall of the box body 1002 is provided with an air inlet pipe 1004 and is connected with the air inlet pipe 1004. The gas passing through the end of the air inlet pipe 1004 acts on the side area of ​​the rotating plate 1001. The rotating plate 1001 includes a magnetic part 12 and a handle part 13. An electromagnet 14 is provided directly below the magnetic part 12. The electromagnet 14 penetrates the movable plate 2 and can slide up and down freely. The center of the magnetic part 12 and the center of the electromagnet 14 are located on the same vertical line. (Refer to the attached figure for reference) Figure 6 It is concluded that the outer wall of the electromagnet 14 is provided with a fixed cylinder 15, the top of the fixed cylinder 15 is fixedly connected to the bottom surface of the moving plate 2, the inner wall of the fixed cylinder 15 is provided with a magnetic block 16 and is fixedly connected thereto, when the electromagnet 14 is powered on, the upper end of the electromagnet 14 and the magnetic part 12 have a mutually attractive magnetic force, and the lower end of the electromagnet 14 and the magnetic block 16 have a mutually repulsive repulsive force, pushing the bottom raised part of the electromagnet 14 to contact the bottom surface of the moving plate 2, and the moving plate 2 and the printing plate 5 in this state are parallel to each other;

[0036] When the printer is in working state, the weights of the two corresponding sides of the fixed shaft 8 are equal. Figure 6 It is concluded that the rotating plate 1001 and the counterweight block 1003 are located on both sides of the fixed shaft 8 respectively). At the same time, the adsorption effect of the electromagnet 14 and the magnetic part 12 in the energized state ensures the stability of the rotating plate 1001 at this position, further ensuring the stability of the parallel state between the moving plate 2 and the printing plate 5, so that the synchronization of the displacement of the printing plate 5 driven by the moving plate 2 is unified. (This workflow can be analyzed by Figure 4 and Figure 5 The state of the electromagnet 14 in FIG. 1 is obtained).

[0037] See also Figure 7-8 The clamping unit 11 includes two clamping handles 1101 located above the base plate 1. A connecting tube 1102 is provided on one side of the clamping handle 1101 and is fixedly connected thereto. A bending rod 1103 is provided on the inner wall of the connecting tube 1102 and slides relatively thereto. The bending rod 1103 is L-shaped. A sliding groove 1104 is provided inside the base plate 1 for the bending rod 1103 to slide. A special-shaped rod 1105 is provided on one side of the bending rod 1103 and is fixedly connected thereto. The overall shape of the special-shaped rod 1105 is "a few". The end of the special-shaped rod 1105 is provided with a rack 1106 and fixedly connected thereto, one side of the rack 1106 is provided with a gear 1107 meshing therewith, one side of the gear 1107 is provided with a rack 2 1108 meshing therewith, the end of the rack 2 1108 is fixedly connected to the special-shaped rod 1105 on the other side of the base plate 1, and the gear 1107 drives the rack 1106 and the rack 2 1108 to mesh with each other for transmission, so as to realize the two clamping handles 1101 to firmly clamp the model;

[0038] The inner wall of the gear 1107 is provided with a shaft 1109 and is fixedly connected thereto, the shaft 1109 penetrates the base plate 1 and is rotatably connected thereto, the bottom end of the shaft 1109 is provided with a motor 11010, the bottom of the motor 11010 is fixedly connected to the base plate 1, the shaft 1109 is connected to the rotating shaft of the motor 11010 through a coupling, the upper end of the shaft 1109 is provided with a fan 17, the shaft 1109 is connected to the rotating shaft of the fan 17 through a coupling, the fan 17 is fixedly connected to the base plate 1 through a fixing frame, a transfer box 18 is provided on one side of the fan 17 and is connected thereto, a heating cylinder 19 is provided inside the transfer box 18, and the outer wall of the heating cylinder 19 is fixedly connected to the transfer box 18, An air pipe 20 is provided at one end of the heat barrel 19 and is connected thereto. The air pipe 20 itself is elastic. The end of the air pipe 20 is connected thereto with the air inlet pipe 1004. The outer wall of the box body 1002 is also provided with a connecting pipe 21 connected thereto. An air cavity 22 is provided at the end of the connecting pipe 21 and is connected thereto. An air leakage hole is provided at the end of the air cavity 22. The air cavity 22 is in a bent strip shape, and the top surface of the air cavity 22 is in contact with the bottom surface of the printing plate 5. The air cavity 22 covers a large area of ​​the bottom of the printing plate 5, and the air cavity 22 itself has good thermal conductivity, which can quickly heat up the printing plate 5, thereby reducing the viscosity of the model material, thereby making it easier to separate the model from the printing plate 5.

[0039] See also Figure 1-8 When in use, after the printed model is completely cooled, the motor 11010 is started and the electromagnet 14 is powered off. At this time, the electromagnet 14 loses its magnetism and will drop above the magnetic block 16 due to its own weight, causing the printing plate 5 and the moving plate 2 to lose their support effect. (See here for reference.) Fig.10 In this state, the electromagnet 14 has lost its magnetism and is located above the magnetic block 16, waiting for the model to detach);

[0040] On the other hand, the started motor 11010 will drive the shaft 1109 and the gear 1107 to rotate, driving the fan 17 to inject air into the heating cylinder 19 inside the transfer box 18, and the heated air will enter the interior of the box body 1002 through the air pipe 120 and the air inlet pipe 1004, and drive the rotating plate 1001 to rotate on the fixed shaft 8 along with the cylinder 9. As the rotating plate 1001 rotates, the distance between it and the counterweight block 1003 becomes closer and closer, thereby breaking the balance of the corresponding two sides of the fixed shaft 8, driving the printing plate 5 and the cylinder 9 to rotate. 9 is angularly offset in an inclined direction on the arc surface 801 of the fixed shaft 8, and with the uninterrupted rotation of the cylinder 9, the angular offset trend of the printing plate 5 and the movable plate 2 will present a relatively regular intermittent type, and at the same time, the interior of the box body 1002 will be filled with hot air, and the hot air will enter the interior of the strip-shaped air cavity 22 through the connecting pipe 21 and finally be discharged. The whole process of the hot air flow is a good heat conduction to the printing plate 5, so that the printing plate 5 is quickly heated up, and the viscosity of the model material is reduced, so that the model is more easily separated from the printing plate 5;

[0041] At the same time, the gear 1107 will also drive the rack 1106 and the rack 2 1108 to mesh with each other, thereby driving the two special-shaped rods 1105 to drive the bending rod 1103 and the clamping handle 1101 to approach each other, and finally stably clamp the printed model. This step can ensure that the model is in a static state above the printing plate 5, so it cooperates with the temperature increase and displacement of the printing plate 5 to gradually form a gap between the bottom of the model and the printing plate 5 (the reason for the gap is that the increased temperature of the printing plate 5 is transmitted to the bottom of the model, so according to the principle of thermal expansion and contraction, the model will be easier to separate from the printing plate 5 than at normal temperature. At the same time, the cylinder 9 drives the rotating plate 1001 to rotate continuously, so that the balance of the corresponding two sides of the fixed shaft 8 is broken, thereby generating a gap), until it is completely separated. Compared with the prior art, the model and the printing plate 5 can be stably and quickly separated without the aid of any tools, thereby reducing damage to the surface of the printing plate 5.

[0042] According to the above embodiment, embodiment 2,

[0043] See also Figure 7-9 A cooling cylinder 23 is also provided inside the transfer box 18, and the outer wall of the cooling cylinder 23 is fixedly connected to the transfer box 18. An air pipe 24 is provided at one end of the cooling cylinder 23 and is connected to the air pipe 24. One end of the air pipe 24 is connected to the connecting cylinder 1102. The clamping handle 1101 includes a clamping block 1 25 and a clamping block 26. The clamping block 26 is located inside the clamping block 1 25 and slides relatively. A plurality of through holes 27 are provided on the inner wall of the clamping block 1 25. The end of the connecting cylinder 1102 is connected to the clamping block 1 25, and the air pipe 24 itself is elastic.

[0044] Another part of the gas generated by the fan 17 enters the cooling cylinder 23 to be cooled, and enters the interior of the connecting cylinder 1102 and the clamping block 25 along the air pipe 24, and is finally discharged outward from the through hole 27 on the surface of the clamping block 25. When the clamping handle 1101 clamps the model, this part of the cold air will spread to the outer wall and bottom of the model, thereby increasing the temperature difference between the bottom of the model and the printing plate 5 in the heated state, further reducing the adhesion between the model and the printing plate 5, making the two easier to separate.

[0045] According to the above embodiment, embodiment 3,

[0046] See also Fig. 9 A spring 28 is provided at the end of the clamp block 26, and the two ends of the spring 28 are fixedly connected to the clamp block 26 and the clamp block 25 respectively. A spring 29 is provided inside the connecting tube 1102, and the two ends of the spring 29 are fixedly connected to the bending rod 1103 and the clamp block 25 respectively; the elastic force of the spring 28 and the sliding relationship between the clamp block 25 and the clamp block 26 can make the clamping handle 1101 suitable for clamping some irregular models, and the elastic force of the spring 29 can also provide a certain buffer distance for the clamping distance at both ends when clamping irregular models. The two cooperate with each other to further improve the applicability of this equipment.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A material stripping mechanism for use in a 3D printer, comprising a base plate (1), a movable plate (2) being arranged above the base plate (1), two upright posts (3) being arranged above the base plate (1), a cross bar (4) being arranged on one side of the upright posts (3), a printing plate (5) being arranged above the movable plate (2), an injection head (6) being arranged above the printing plate (5), and the injection head (6) being freely slidable above the cross bar (4). Features: An electric screw (7) is provided inside the movable plate (2), and both ends of the electric screw (7) are rotatably connected to the base plate (1). A fixed shaft (8) is provided above the movable plate (2), and the fixed shaft (8) comprises a curved portion (801) and a straight portion (802). A cylinder (9) is provided on the outer wall of the fixed shaft (8) and rotates relative to the cylinder (9), and one end of the cylinder (9) is rotatably connected to the printing plate (5). A swing unit (10) is provided below the printing plate (5) for driving the bottom surface of the printing plate (5) to intermittently contact the top surface of the movable plate (2), and the swing unit (10) causes a gap to be generated between the bottom of the model and the surface of the printing plate (5); A clamping unit (11) for clamping the model is provided above the printing plate (5), and the clamping unit (11) cooperates with the swing unit (10) to separate the bottom of the model from the surface of the printing plate (5); The swing unit (10) comprises a rotating plate (1001) on the outer wall of a cylinder (9); a box body (1002) is provided outside the rotating plate (1001); the top surface of the box body (1002) is fixedly connected to the printing plate (5); a counterweight (1003) is provided on the outer wall of the box body (1002); when the vertical lines of the rotating plate (1001) and the counterweight (1003) are on the same horizontal line, the printing plate (5) and the movable plate (2) are parallel to each other; an air inlet pipe (1004) is provided on the outer wall of the box body (1002); gas passing through the end of the air inlet pipe (1004) acts on the side area of ​​the rotating plate (1001); and the rotating plate (1001) is provided with a counterweight. 001) comprises a magnetic part (12) and a handle part (13), an electromagnet (14) is provided directly below the magnetic part (12), the electromagnet (14) penetrates the movable plate (2), a fixing cylinder (15) is provided on the outer wall of the electromagnet (14), a magnetic block (16) is provided on the inner wall of the fixing cylinder (15), when the electromagnet (14) is powered on, the upper end of the electromagnet (14) and the magnetic part (12) have a magnetic force of attraction, and the lower end of the electromagnet (14) and the magnetic block (16) have a repulsive force of repulsion, pushing the bottom raised part of the electromagnet (14) to contact the bottom surface of the movable plate (2), and in this state, the movable plate (2) and the printing plate (5) are parallel to each other; The clamping unit (11) comprises two clamping handles (1101) located above the base plate (1), a connecting tube (1102) is provided on one side of the clamping handle (1101), a bending rod (1103) is provided on the inner wall of the connecting tube (1102), a sliding groove (1104) for the bending rod (1103) to slide is provided inside the base plate (1), a special-shaped rod (1105) is provided on one side of the bending rod (1103), a rack (1106) is provided at the end of the special-shaped rod (1105), a gear (1107) meshing with the rack (1106) is provided on one side of the rack (1106), a gear (1107) meshing with the rack (1107) is provided on one side of the gear (1107), and a rack (1108) meshing with the gear (1107) is provided on one side of the gear (1107). The inner wall of the gear (1107) is provided with a shaft (1109), the shaft (1109) passes through the base plate (1) and is rotatably connected thereto, the bottom end of the shaft (1109) is provided with a motor (11010), the upper end of the shaft (1109) is provided with a fan (17), one side of the fan (17) is provided with a transfer box (18), the interior of the transfer box (18) is provided with a heating tube (19), one end of the heating tube (19) is provided with an air pipe 1 (20), the end of the air pipe 1 (20) is connected to the air inlet pipe (1004), the outer wall of the box body (1002) is also provided with a connecting pipe (21) connected thereto, and the end of the connecting pipe (21) is provided with an air cavity (22).

2. The stripping mechanism based on a 3D printer according to claim 1, characterized in that: The air cavity (22) is in the shape of a bent strip, and the top surface of the air cavity (22) is in contact with the bottom surface of the printing plate (5).

3. The stripping mechanism based on a 3D printer according to claim 1, characterized in that: The transfer box (18) is further provided with a cooling cylinder (23) inside, and an air pipe (24) is provided at one end of the cooling cylinder (23), and one end of the air pipe (24) is connected to the connecting cylinder (1102). The clamping handle (1101) comprises a clamping block (25) and a clamping block (26), and the clamping block (26) is located inside the clamping block (25) and slides relatively thereto, and the inner wall of the clamping block (25) is provided with a plurality of through holes (27).

4. The material stripping mechanism based on a 3D printer according to claim 3, characterized in that: A spring 1 (28) is provided at the end of the clamp block 2 (26), and a spring 2 (29) is provided inside the connecting tube (1102). The two ends of the spring 2 (29) are respectively fixedly connected to the bending rod (1103) and the clamp block 1 (25).

Images