A 3D printer capable of automatically separating printed models

Abstract

The utility model provides a 3D printer capable of automatically separating a printed model, comprising: a base, a 3D printer body, a printing platform, a horizontal workbench, an automatic separation unit and a cooling device; the 3D printer body is mounted on the base, the printing platform is mounted on the 3D printer body, the horizontal workbench is mounted on the base, the automatic separation unit is mounted on the horizontal workbench, and the cooling device is slidably mounted inside the printing platform. The 3D printer capable of automatically separating a printed model can emit cold air through the cooling device, so that the loosely bonded part of the bottom of the model is automatically separated from the printing platform; the bottom of the printed model can be quickly cut by the automatic separation unit, so that the printed model is completely separated from the printing platform, and the printed model can be automatically separated, which saves time and labor, is convenient for students to operate and use during teaching, and can prevent the printed model from being damaged due to improper force during the manual disassembly of the printed model.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printers, and in particular to a 3D printer capable of automatically separating a printed model. Background Art

[0002] Desktop 3D printers usually use fused deposition modeling technology, which uses high temperature to melt the material, extrude it into filaments through the print head, and accumulate it on the component platform. Desktop 3D printers are small in size, light in weight, simple to operate, and easy for students to master. In addition, students' questions can be printed out using 3D printers, and targeted explanations can be given using models, which not only facilitates students' understanding and memory, but also improves their enthusiasm. Therefore, in recent years, desktop 3D printers have been used more and more widely in education. However, after the 3D printer completes the printing of a model, the model remains on the workbench and needs to be manually removed before the next model can be printed. As a result, the 3D printer has a low degree of automation and low work efficiency, and it also consumes manpower. However, when desktop 3D printers are used in education, the group they face is students who do not have professional skills in this area. If students are allowed to disassemble the model by themselves, the model is easily damaged and even causes student injuries.

[0003] The existing announcement number is CN206856031U, which is a device for automatically separating models of a 3D printer. The device is arranged on the base of the 3D printer, including a crawler platform, a stepper motor, and a driving wheel. The middle part of the base is provided with a left and right communicating cavity along the model transmission direction. The output shaft of the stepper motor is connected to one end of the driving wheel. The mounting plate is arranged on the left wall of the base, the setting plate is fixed on the left wall of the base, and a driven wheel is arranged on the right side wall of the base. The crawler platform is sequentially sleeved on the driving wheel, the cavity and the driven wheel, and the crawler platform, the driving wheel, the cavity and the driven wheel form a loop. The bending deformation of the crawler platform is used to realize automatic demoulding of the non-bending and deformable model adhered to the crawler platform, and the platform is peeled off to make the model automatically fall off. The patent has the following problems:

[0004] 3D printers print models layer by layer. The first layer needs to be tightly bonded to the printing platform to ensure the stability of the bottom layer, so that the entire model can be printed smoothly layer by layer. This patent can only make the model detach actively, and the model is tightly bonded to the printing platform. It cannot guarantee that all models can be actively detached from the crawler platform, and the continuously running crawler platform may cause damage to the model or even cause safety accidents. Utility Model Content

[0005] The purpose of the utility model is to provide a 3D printer capable of automatically separating printed models to solve the above problems.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides a 3D printer capable of automatically separating a printed model, comprising: a base, a 3D printer body, a printing platform, a horizontal workbench, an automatic separation part and a cooling device;

[0007] The 3D printer body is mounted on the base, the printing platform is mounted on the 3D printer body, the horizontal workbench is mounted on the base, the automatic separation unit is mounted on the horizontal workbench, and the cooling device is slidably mounted inside the printing platform, wherein:

[0008] The automatic separation unit can move horizontally and cut the bottom of the printed model to separate the printed model from the printing platform;

[0009] The cooling device can emit cold air to cool down the printing platform.

[0010] Further, the horizontal workbench includes a horizontal block and a support plate;

[0011] One corner of the horizontal block is fitted on the base, one end of the support plate is mounted on the base, and the other end of the support plate is connected to the horizontal block, wherein:

[0012] The horizontal block is parallel to the table surface of the printing platform.

[0013] Furthermore, the automatic separation part includes an electric push rod, a concave transmission rod, a dividing line and an adjustable clamping device;

[0014] The electric push rod is installed on the surface of the horizontal block, the back of the concave transmission rod is connected to the transmission shaft of the electric push rod, two sets of adjustable clamping devices are connected to both sides of the concave transmission rod, the dividing line passes through the two sets of adjustable clamping devices, and the lowest point of the dividing line is colinear with the surface of the printing platform, wherein:

[0015] The electric push rod can push the concave transmission rod, the two sets of adjustable clamping devices and the dividing line to move horizontally, and the dividing line moves in contact with the surface of the printing platform.

[0016] Further, the adjustable clamping device includes a base clamping plate, an upper clamping plate, a slider, a bolt and a nut;

[0017] The base clamp is fixedly connected to the concave transmission rod, the two sliders are installed on the concave transmission rod and extend to the surface of the base clamp, the upper clamp is provided with grooves that fit the outer contours of the two sliders, and the grooves on the upper clamp are butted with the two sliders, the bolt is screwed through the upper clamp and the base clamp, the nut is screwed on the bolt and is located at the bottom of the base clamp;

[0018] The dividing line is placed between the base clamping plate and the upper clamping plate, wherein:

[0019] Rotating the bolt can drive the upper clamping plate to move up and down.

[0020] Further, the cooling device includes a storage box and dry ice;

[0021] The printing platform is provided with a receiving groove which is through from front to back, the receiving box is slidably mounted in the receiving groove on the printing platform, and a plurality of dry ice is placed in the receiving box, wherein:

[0022] The storage box can be completely pushed into the receiving slot on the printing platform;

[0023] Some of the dry ice can emit cold air.

[0024] Furthermore, the four blocking surfaces of the storage box are all in a grid shape, wherein:

[0025] Air can enter the storage box through the four blocking surfaces of the storage box.

[0026] Furthermore, the material of the printing platform includes but is not limited to aluminum;

[0027] The material of the dividing line includes but is not limited to tin.

[0028] Furthermore, dense grid-like protrusions are engraved on the clamping surfaces of the base clamping plate and the upper clamping plate.

[0029] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0030] The 3D printer capable of automatically separating printed models can emit cold air through a cooling device to quickly cool down the printing platform, and at the same time transmit the low temperature to the printed model bonded to the printing platform, so that the bottom of the model shrinks when it is cold, and the loosely bonded part of the bottom of the model is automatically separated from the printing platform; the bottom of the printed model can be quickly cut through the automatic separation part to cut the part where the bottom of the printed model is too firmly bonded to the printing platform, so that the printed model is completely separated from the printing platform. The 3D printer capable of automatically separating printed models is simple to operate, can realize automatic separation of printed models, saves time and effort, is convenient for students to operate and use during teaching, and can prevent damage to the printed model due to improper force during manual disassembly of the printed model. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0032] Figure 1 Shows a stereogram of the utility model;

[0033] Figure 2 A partial stereogram of the utility model is shown;

[0034] Figure 3 Another partial stereogram of the utility model is shown;

[0035] Figure 4 A partial side view of the utility model is shown;

[0036] Figure 5 The utility model is shown Figure 2 Enlarged view of point A.

[0037] In the picture

[0038] 1. Base;

[0039] 2. 3D printer body;

[0040] 3. Printing platform;

[0041] 4. Horizontal workbench; 41. Horizontal block; 42. Support plate;

[0042] 5. Automatic separation part; 51. Electric push rod; 52. Concave transmission rod; 53. Separation line;

[0043] 54, adjustable clamping device; 541, base clamping plate; 542, upper clamping plate; 543, slider; 544, bolt; 545, nut;

[0044] 6. Cooling device; 61. Storage box; 62. Dry ice. DETAILED DESCRIPTION

[0045] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0046] See also Figure 1 , Figure 1 Shows a three-dimensional diagram of the utility model; please refer to Figure 2 , Figure 2 Shows a partial stereogram of the utility model; please refer to Figure 3 , Figure 3 Another partial stereogram of the present invention is shown; see Figure 4 , Figure 4 Shows a partial side view of the utility model; see Figure 5 , Figure 5 The utility model is shown Figure 2 A enlarged view of Figure 1-5 As shown, a 3D printer capable of automatically separating a printed model comprises: a base 1, a 3D printer body 2, a printing platform 3, a horizontal workbench 4, an automatic separation portion 5 and a cooling device 6;

[0047] The 3D printer body 2 is mounted on the base 1, the printing platform 3 is mounted on the 3D printer body 2, the horizontal workbench 4 is mounted on the base 1, the automatic separation unit 5 is mounted on the horizontal workbench 4, and the cooling device 6 is slidably mounted inside the printing platform 3, wherein:

[0048] The automatic separation unit 5 can move horizontally and cut the bottom of the printed model to separate the printed model from the printing platform 3;

[0049] The cooling device 6 can emit cold air to cool the printing platform 3. The 3D printer that automatically separates the printing model can emit cold air through the cooling device 6 to quickly cool the printing platform 3, and at the same time transfer the low temperature to the printing model bonded to the printing platform 3, so that the bottom of the model shrinks when it is cold, and the part of the bottom of the model that is not firmly bonded is automatically separated from the printing platform; the bottom of the printing model can be quickly cut by the automatic separation part 5 to cut the part where the bottom of the printing model is too firmly bonded to the printing platform 3, so that the printing model is completely separated from the printing platform 3. The 3D printer that automatically separates the printing model is simple to operate, can realize automatic separation of the printing model, save time and labor, and is convenient for students to operate and use during the teaching process. At the same time, it can prevent the printing model from being damaged due to improper force during the manual disassembly of the printing model.

[0050] Optionally, the horizontal workbench 4 includes a horizontal block 41 and a support plate 42;

[0051] One corner of the horizontal block 41 is fitted on the base 1, one end of the support plate 42 is mounted on the base 1, and the other end of the support plate 42 is connected to the horizontal block 41, wherein:

[0052] The horizontal block 41 is parallel to the surface of the printing platform 3, ensuring that the automatic separation part 5 installed on the horizontal block 41 is parallel to the surface of the printing platform 3, ensuring that the automatic separation part 5 can be in contact with the surface of the printing platform 3 to cut the bottom of the printing model.

[0053] Optionally, the automatic separation part 5 includes an electric push rod 51, a concave transmission rod 52, a dividing line 53 and an adjustable clamping device 54, and the electric push rod 51 is an existing electric drive device that converts the rotational motion of the motor into the linear reciprocating motion of the push rod;

[0054] The electric push rod 51 is installed on the surface of the horizontal block 41, the back of the concave transmission rod 52 is connected to the transmission shaft of the electric push rod 51, two sets of adjustable clamping devices 54 are connected to the two sides of the concave transmission rod 52, the dividing line 53 passes through the two sets of adjustable clamping devices 54, and the lowest point of the dividing line 53 is colinear with the surface of the printing platform 3, wherein:

[0055] The electric push rod 51 can push the concave transmission rod 52, the two sets of adjustable clamping devices 54 and the dividing line 53 to move horizontally, and the dividing line 53 moves along the surface of the printing platform 3, ensuring that the dividing line 53 can cut to the lowest layer of the printing model and completely separate the bottom layer of the printing model from the printing platform 3; the height of the horizontal block 41 can meet the requirement that after the automatic separation part 5 is installed on the horizontal block 41, the lowest point of the dividing line 53 is collinear with the surface of the printing platform 3.

[0056] Optionally, the adjustable clamping device 54 includes a base clamping plate 541, an upper clamping plate 542, a slider 543, a bolt 544 and a nut 545;

[0057] The base clamping plate 541 is fixedly connected to the concave transmission rod 52, the two sliders 543 are installed on the concave transmission rod 52 and extend to the surface of the base clamping plate 541, the upper clamping plate 542 is provided with grooves that fit the outer contours of the two sliders 543, and the grooves on the upper clamping plate 542 are connected with the two sliders 543, the bolt 544 is screwed through the upper clamping plate 542 and the base clamping plate 541, and the nut 545 is screwed on the bolt 544 and is located at the bottom of the base clamping plate 541;

[0058] The dividing line 53 is placed between the base clamping plate 541 and the upper clamping plate 542, wherein:

[0059] Rotating the bolt 544 can drive the upper clamping plate 542 to move up and down, and spirally rotating and locking the two sets of adjustable clamping devices 54 can firmly clamp the dividing line 53 to ensure that the dividing line 53 will not loosen during the cutting process. When the dividing line 53 is worn to the point of needing to be replaced, the two sets of adjustable clamping devices 54 can be spirally rotated to loosen the two sets of adjustable clamping devices 54, and the dividing line 53 can be removed for replacement; the distance between the dividing line 53 and the concave transmission rod 52 can ensure that the dividing line 53 completely separates the bottom of the printing model from the printing platform 3, and the concave transmission rod 52 does not interfere with the printing model.

[0060] Optionally, the cooling device 6 includes a storage box 61 and dry ice 62. The dry ice 62 is solid carbon dioxide, which is obtained by liquefying carbon dioxide into a colorless liquid under a pressure of 6250.5498 kPa and then rapidly solidifying at low temperature. The temperature of the dry ice 62 at normal temperature and pressure is about minus 50 degrees Celsius, which is very easy to volatilize and condense moisture in the surrounding air into mist, emitting a large amount of cold air.

[0061] The printing platform 3 is provided with a receiving groove which is through from front to back, and the receiving box 61 is slidably installed in the receiving groove on the printing platform 3, and a plurality of dry ice 62 are placed in the receiving box 61, wherein:

[0062] The storage box 61 can be completely pushed into the receiving slot on the printing platform 3;

[0063] The dry ice 62 can emit cold air to quickly cool down the printing platform 3, and at the same time transfer the low temperature to the bottom of the printing model adhered to the printing platform 3, so that the bottom of the printing model shrinks when it is cold, and the loose part of the bottom of the printing model that is adhered to the surface of the printing platform 3 is automatically separated from the surface of the printing platform 3.

[0064] Optionally, the four blocking surfaces of the storage box 61 are all in a grid shape, wherein:

[0065] Air can enter the storage box 61 through the four blocking surfaces of the storage box 61, which accelerates the circulation of air, so that the dry ice 62 evaporates and emits cold air faster, and the bottom of the printed model is quickly cooled and contracted.

[0066] Optionally, the material of the printing platform 3 includes but is not limited to aluminum. The temperature-sensitive material can make the printing platform 3 be cooled more quickly by the cold air volatilized by the dry ice 62;

[0067] The material of the dividing line 53 includes but is not limited to tin. A solid wire-bound product can make the cutting effect of the dividing line 53 better and reduce the wear of the dividing line 53.

[0068] Optionally, the clamping surfaces of the base clamp 541 and the upper clamp 542 are engraved with dense grid-like protrusions to increase friction and ensure that the two sets of adjustable clamping devices 54 firmly clamp the cutting line 53 to prevent the cutting line 53 from loosening during the cutting process, resulting in poor cutting effect.

[0069] Working principle: After the 3D printer capable of automatically separating printed models completes printing of a model, the operator first pulls out the storage box 61 from the receiving slot on the printing platform 3, and places a plurality of external dry ice 62 into the storage box 61. After placement, the storage box 61 is completely pushed into the receiving slot on the printing platform 3. At this time, air continuously circulates through the four grid-shaped baffles of the storage box 61. The plurality of dry ice 62 evaporates rapidly under the help of the circulating air, emitting low-temperature cold air, so that the printing platform 3 is quickly cooled down. At the same time, the printing platform 3 transmits the low temperature to the bottom of the printed model, so that the bottom of the printed model shrinks when it is cold. At this time, the loose part of the bottom of the printed model that is bonded to the surface of the printing platform 3 is automatically separated from the surface of the printing platform 3. At the same time, after the dividing line 53 is clamped, the electric push rod 51 is driven , the electric push rod 51 transmits the thrust to the dividing line 53 through the concave transmission rod 52 and the two sets of adjustable clamping devices 54 in sequence, and quickly pushes the dividing line 53 to move forward in contact with the surface of the printing platform 3. Under the action of the strong and fast-moving dividing line 53, the too firm adhesion between the bottom of the printing model and the printing platform 3 is cut, so that the printing model and the printing platform 3 are completely separated. After the electric push rod 51 is reset, the driving of the electric push rod 51 is stopped, and it is driven again after the next model is printed. After the model is completely removed, if some dry ice 62 has not completely evaporated, some dry ice 62 is taken out and placed in an external storage box. When the dividing line 53 is worn to the point of needing to be replaced, the two sets of adjustable clamping devices 54 are loosened by spiral rotation, and the dividing line 53 is removed for replacement. The above is the working process of the 3D printer for automatically separating printed models.

[0070] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A 3D printer capable of automatically separating printed models, characterized in that: include: A base (1), a 3D printer body (2), a printing platform (3), a horizontal workbench (4), an automatic separation unit (5) and a cooling device (6); The 3D printer body (2) is mounted on the base (1), the printing platform (3) is mounted on the 3D printer body (2), the horizontal workbench (4) is mounted on the base (1), the automatic separation unit (5) is mounted on the horizontal workbench (4), and the cooling device (6) is slidably mounted inside the printing platform (3), wherein: The automatic separation part (5) is capable of horizontally moving and cutting the bottom of the printed model so as to separate the printed model from the printing platform (3); The cooling device (6) can emit cold air to cool the printing platform (3).

2. A 3D printer capable of automatically separating printed models as claimed in claim 1, characterized in that: The horizontal workbench (4) comprises a horizontal block (41) and a support plate (42); One corner of the horizontal block (41) is fitted on the base (1), one end of the support plate (42) is mounted on the base (1), and the other end of the support plate (42) is connected to the horizontal block (41), wherein: The horizontal block (41) is parallel to the table surface of the printing platform (3).

3. A 3D printer capable of automatically separating printed models as claimed in claim 2, characterized in that: The automatic separation part (5) comprises an electric push rod (51), a concave transmission rod (52), a dividing line (53) and an adjustable clamping device (54); The electric push rod (51) is mounted on the surface of the horizontal block (41), the back of the concave transmission rod (52) is connected to the transmission shaft of the electric push rod (51), two sets of adjustable clamping devices (54) are connected to the two sides of the concave transmission rod (52), the dividing line (53) passes through the two sets of adjustable clamping devices (54), and the lowest point of the dividing line (53) is colinear with the surface of the printing platform (3), wherein: The electric push rod (51) can push the concave transmission rod (52), the two sets of adjustable clamping devices (54) and the dividing line (53) to move horizontally, and the dividing line (53) moves in close contact with the surface of the printing platform (3).

4. A 3D printer capable of automatically separating printed models as claimed in claim 3, characterized in that: The adjustable clamping device (54) comprises a base clamping plate (541), an upper clamping plate (542), a slider (543), a bolt (544) and a nut (545); The base clamping plate (541) is fixedly connected to the concave transmission rod (52), the two sliders (543) are installed on the concave transmission rod (52) and extend to the surface of the base clamping plate (541), the upper clamping plate (542) is provided with grooves that fit the outer contours of the two sliders (543), and the grooves on the upper clamping plate (542) are connected to the two sliders (543), the bolt (544) is screwed through the upper clamping plate (542) and the base clamping plate (541), and the nut (545) is screwed on the bolt (544) and is located at the bottom of the base clamping plate (541); The dividing line (53) is placed between the base clamping plate (541) and the upper clamping plate (542), wherein: Rotating the bolt (544) can drive the upper clamping plate (542) to move up and down.

5. A 3D printer capable of automatically separating printed models as claimed in claim 4, characterized in that: The cooling device (6) comprises a storage box (61) and dry ice (62); The printing platform (3) is provided with a receiving groove which is through-through from front to back, the receiving box (61) is slidably mounted in the receiving groove on the printing platform (3), and a plurality of dry ice (62) are placed in the receiving box (61), wherein: The storage box (61) can be completely pushed into the receiving slot on the printing platform (3); The dry ice (62) can emit cold air.

6. A 3D printer capable of automatically separating printed models as claimed in claim 5, characterized in that: The four blocking surfaces of the storage box (61) are all in a grid shape, wherein: Air can enter the storage box (61) through the four blocking surfaces of the storage box (61).

7. A 3D printer capable of automatically separating printed models as claimed in claim 6, characterized in that: The printing platform (3) is made of aluminum; The material of the dividing line (53) is tin.

8. A 3D printer capable of automatically separating printed models as claimed in claim 7, characterized in that: The clamping surfaces of the base clamping plate (541) and the upper clamping plate (542) are both engraved with dense grid-like protrusions.

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