Die shoveling device for 3D printer

Abstract

The utility model provides a mold shoveling device for a 3D printer, and relates to the technical field of three-dimensional forming machining equipment. The mold shoveling device for the 3D printer comprises a support, a mold shoveling mechanism and a mold collecting box. The die shoveling mechanism comprises a mounting seat which can be pushed by a power device to slide on the bracket, a shovel blade arranged on the mounting seat, and a material receiving box which is arranged on the mounting seat and is positioned below the shovel blade; one of the receiving box and the mounting seat is provided with a rotating shaft, and the other one is provided with an insertion hole into which the rotating shaft can be inserted; a guide mechanism is arranged between the material receiving box and the bracket; under the guidance of the guide mechanism, when the power device pushes the mounting base to move towards the 3D printer, the material receiving box rotates around the rotating shaft to be horizontal, and when the power device drives the mounting base to move towards the mold collecting box, the material receiving box rotates around the rotating shaft to be inclined, so that a model falls into the mold collecting box from the material receiving box. According to the mold shoveling device for the 3D printer, the production efficiency of the 3D printer can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of three-dimensional molding processing equipment, and specifically to a shovel mold device for a 3D printer. Background Art

[0002] 3D printing is a type of rapid prototyping manufacturing technology. It is a technology that uses digital model files as the basis, uses powdered metal or plastic and other bondable materials to construct objects by printing layer by layer. It can overcome special structural obstacles that traditional mechanical processing cannot achieve, can achieve the simplified production of any complex structural parts, and can automatically, directly and accurately transform the design idea from the digital model into a model or device with certain functions.

[0003] At present, in the 3D printing industry, especially in light-curing 3D printing, scraping off the model after printing has always been a research problem. The current mainstream method is to scrape off the mold manually with a shovel. The disadvantages are: high labor intensity and slow scraping speed, which seriously affects the production efficiency of 3D printers. Utility Model Content

[0004] To this end, the utility model proposes a shoveling mold device for a 3D printer, so as to at least partially solve the technical problem that the existing shoveling mold method affects the production efficiency of the 3D printer.

[0005] The technical solution of the utility model is as follows:

[0006] A shoveling mold device for a 3D printer, comprising a bracket, a shoveling mold mechanism and a mold receiving box; the shoveling mold mechanism comprises a mounting seat that can be pushed by a power device to slide on the bracket, a scraper disposed on the mounting seat, and a material receiving box disposed on the mounting seat and below the scraper; a rotating shaft is disposed on one of the material receiving box and the mounting seat, and an insertion hole is disposed on the other of the material receiving box and the mounting seat for inserting the rotating shaft;

[0007] A guide mechanism is provided between the receiving box and the bracket; when the power device pushes the mounting seat to move toward the 3D printer under the guidance of the guide mechanism, the receiving box rotates around the rotating shaft to be horizontal; when the power device drives the mounting seat to move toward the mold receiving box, the receiving box rotates around the rotating shaft to be inclined, so that the model falls from the receiving box into the mold receiving box.

[0008] Furthermore, the guide mechanism includes a guide groove provided on the bracket, and a guide wheel provided on the receiving box and capable of moving along the guide groove; the guide groove includes a horizontal section, and an inclined section connected to one end of the horizontal section close to the mold receiving box and extending obliquely downward.

[0009] Furthermore, the guide mechanism also includes an arc-shaped avoidance groove provided on the mounting seat for the guide wheel to pass through.

[0010] Furthermore, a pressure sensor for detecting the pressure exerted on the scraper is provided between the scraper and the mounting seat.

[0011] Furthermore, the power device includes a motor fixed on the bracket, a screw driven by the motor to rotate on the bracket, a nut threadedly connected to the screw is fixed on the mounting seat; and a guide unit for guiding the movement of the mounting seat is provided between the mounting seat and the bracket.

[0012] Furthermore, the guide unit includes a support fixedly arranged on the bracket, a linear bearing is arranged on the support, and a guide shaft slidably arranged in the linear bearing is arranged on the mounting seat.

[0013] Furthermore, the other end of the blade extends upwardly in a slanting manner in a direction away from the mounting seat.

[0014] Furthermore, a limiting member is provided on the bracket, and the limiting member can abut against an inner side of a printing platform of the 3D printer.

[0015] The working principle and beneficial effects of the utility model are:

[0016] The 3D printer shoveling device provided by the utility model is provided with a mounting seat, a scraper, a material receiving box and a mold receiving box; when the mounting seat is close to the 3D printer, the scraper can shovel the model printed on the 3D printer and drop it into the material receiving box; after the shoveling is completed, when the mounting seat is close to the mold receiving box, the material receiving box can be tilted under the action of the guide mechanism, so that the model in the material receiving box falls into the mold receiving box; that is, the 3D printer shoveling device provided by the utility model can complete the shoveling of the model printed by the 3D printer and the transfer to the mold receiving box through the bidirectional sliding of the mounting seat. Compared with manual shoveling, the 3D printer shoveling device provided by the utility model is faster and can improve the processing efficiency of the 3D printer shoveling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 An exploded view of the shovel mold device provided in the embodiment of the utility model in cooperation with the 3D printer;

[0019] Figure 2 A schematic diagram of the internal structure of a shovel mold device for a 3D printer provided in an embodiment of the utility model;

[0020] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0021] Figure 4 An exploded view of another angle of the shovel mold device provided by the embodiment of the utility model and the 3D printer;

[0022] In the figure: 100, 3D printer; 110, printing platform; 200, bracket; 210, shoveling mechanism; 220, mounting seat; 230, scraper; 240, material receiving box; 241, rotating shaft; 242, guide wheel; 250, support; 251, linear bearing; 260, limiter; 201, guide groove; 202, horizontal section, 203, inclined section; 204, avoidance groove; 300, mold receiving box; 410, motor; 420, lead screw. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] This embodiment provides a shovel mold device for a 3D printer 100, including a bracket 200, referring to Figure 1 and Figure 2 As shown, the shoveling mold mechanism 210 and the mold receiving box 300 are also included. The shoveling mold mechanism 210 includes a mounting seat 220 that can be pushed by a power device to slide on the bracket 200, a scraper 230 arranged on the mounting seat 220, and a material receiving box 240 arranged on the mounting seat 220 and located below the scraper 230; one of the material receiving box 240 and the mounting seat 220 is provided with a rotating shaft 241, and the other is provided with an insertion hole for the rotating shaft 241 to be inserted. A guide mechanism is provided between the material receiving box 240 and the bracket 200; guided by the guide mechanism, when the power device pushes the mounting seat 220 to move toward the 3D printer 100, the material receiving box 240 rotates around the rotating shaft 241 to a horizontal level, and when the power device drives the mounting seat 220 to move toward the mold receiving box 300, the material receiving box 240 rotates around the rotating shaft 241 to an inclined position, so that the model falls from the material receiving box 240 into the mold receiving box 300.

[0025] That is, in the shoveling mold device for the 3D printer 100 of this embodiment, after the 3D printer 100 completes printing of the model, the power device can push the mounting seat 220, and the mounting seat 220 drives the scraper 230 to scrape the model on the 3D printer 100 and drop it into the material receiving box 240 below the scraper 230; then, when the power device drives the mounting seat 220 to move in a direction close to the mold receiving box 300, the material receiving box 240 can be tilted with the movement of the mounting seat 220 through the guidance of the guide mechanism, so that the model in the material receiving box 240 falls into the mold receiving box 300.

[0026] Compared with manual shoveling, the shoveling device used in the 3D printer 100 of this embodiment can automatically complete the shoveling and conveying of the model to the mold receiving box 300, which can shorten the shoveling time and thus improve the production efficiency of the 3D printer 100.

[0027] refer to Figure 2 As shown, in the shovel mold device of this embodiment, the bracket 200 is a basis for installing other components, and its specific structure can be set as needed, and its structure will not be described in detail here.

[0028] refer to Figure 2 As shown, the power device of this embodiment includes a motor 410 fixed on the bracket 200, a screw 420 driven by the motor 410 and capable of rotating on the bracket 200, a nut threadedly connected to the screw 420 is fixed on the mounting seat 220; and a guide unit for guiding the movement of the mounting seat 220 is provided between the mounting seat 220 and the bracket 200.

[0029] The guide unit includes a support 250 fixedly arranged on the bracket 200 , a linear bearing 251 is arranged on the support 250 , and a guide shaft slidably arranged in the linear bearing 251 is arranged on the mounting seat 220 .

[0030] Based on the above structure, the guide unit restricts the movement of the mounting seat 220 , and when the motor 410 drives the lead screw 420 to rotate, the mounting seat 220 will move along the axial direction of the lead screw 420 .

[0031] In some embodiments, the power device may also be a cylinder, a hydraulic cylinder or other device that can drive the mounting seat 220 to move in a straight line.

[0032] refer to Figure 2 and Figure 3 As shown, in this embodiment, the scraper 230 is installed at the end of the mounting seat 220. The scraper 230 is plate-shaped and away from the mounting seat 220. The other end of the scraper 230 extends upwardly at an angle.

[0033] In this embodiment, by providing the inclined scraper 230 , only the end of the scraper 230 is in contact with the printing plane of the 3D printer 100 , so that the model can be scraped off the printing plane of the 3D printer 100 better.

[0034] In order to better enable the scraper 230 to scrape the model, in this embodiment, a pressure sensor for detecting the pressure borne by the scraper 230 is provided between the scraper 230 and the mounting seat 220. It should be noted that the pressure sensor is not shown in the drawings of this embodiment because it does not affect understanding.

[0035] By setting the pressure sensor, after the 3D printer 100 completes printing of the model, the scraper 230 can be moved to the bottom of the edge of the printing plane of the 3D printer 100; then the 3D printer 100 drives the printing plane to descend, and after contacting the scraper 230, the printing plane continues to descend until the pressure sensor detects that the pressure on the scraper 230 reaches a preset pressure threshold, and the printing plane stops descending. The scraper 230 is driven by the mounting base 220 to move along the printing plane to scrape off the model generated by the 3D printer 100.

[0036] By providing the pressure sensor, the end of the scraper 230 can be brought into close contact with the printing plane, so that the scraper 230 can scrape off the model completely.

[0037] In this embodiment, reference Figure 4 As shown, a stopper 260 is also provided on the bracket 200, and the stopper 260 can abut against one side of the inside of the printing platform 110 of the 3D printer. Specifically, when the printing platform 110 of the 3D printer is lowered to contact the scraper, the inner side of the printing platform 110 abuts against the stopper 260. When the scraper 230 scrapes the model on the printing plane, the printing platform 110 has a thrust in the direction of the inside of the 3D printer. If there is no stopper 260, the printing platform 110 may be deformed and damaged. By providing the stopper 260 to support the printing platform 110, the deformation of the printing platform 110 can be better avoided.

[0038] In this embodiment, reference Figure 4 As shown, a through hole is provided on the limit member 260, and a long hole is provided on the bracket 200. The limit member 260 is fixed to the bracket 200 by a bolt pair, and the fixed position of the limit member on the bracket is adjustable. By adjusting the limit member 260, the limit member 260 can be better abutted against the inner side surface of the printing platform 110.

[0039] refer to Figure 2 and Figure 3As shown, in this embodiment, an insertion hole is provided on the mounting seat 220, and a rotating shaft 241 is provided on the receiving box 240. The rotating shaft 241 is inserted into the insertion hole and can rotate in the insertion hole, that is, the receiving box 240 can rotate around the axis of the rotating shaft 241.

[0040] In some embodiments, the rotating shaft 241 may also be disposed on the mounting seat 220 , and the insertion hole may be disposed on the receiving box 240 , which has the same principle and will not be described in detail here.

[0041] refer to Figure 3 As shown, the guide mechanism of this embodiment includes a guide groove 201 provided on the bracket 200, and the guide groove 201 includes a horizontal section 202, and an inclined section 203 connected to one end of the horizontal section 202 close to the mold receiving box 300 and extending obliquely downward. The guide mechanism of this embodiment also includes a guide wheel 242 provided on the receiving box 240 and capable of moving along the guide groove 201, and compared with the rotating shaft 241, the guide wheel 242 is away from the 3D printer 100.

[0042] Based on the above structure, when the mounting seat 220 drives the scraper 230 and the receiving box 240 to move towards the 3D printer 100 to scrape off the model, the guide wheel 242 will slide into the horizontal section 202 of the guide groove 201. At this time, the guide wheel 242 and the rotating shaft 241 are on the same horizontal plane, that is, the receiving box 240 is horizontal, so as to better receive the model scraped off by the scraper 230.

[0043] When the mounting seat 220 drives the scraper 230 and the receiving box 240 to move toward the mold receiving box 300, the guide wheel 242 will be able to slide into the inclined section 203. At this time, the guide wheel 242 will be lower than the rotating shaft 241, so that the end of the receiving box 240 close to the mold receiving box 300 will tilt downward, and the model in the receiving box 240 will be able to fall into the mold receiving box 300 under the action of gravity.

[0044] By providing the above-mentioned guiding mechanism, when the receiving box 240 moves with the mounting seat 220, the receiving box 240 can automatically complete the conversion between the horizontal state and the inclined state, so that the model can be transferred from the 3D printer 100 to the mold receiving box 300 more conveniently.

[0045] In order to avoid interference of the mounting seat 220 with the guide wheel 242, refer to Figure 3 As shown, the guide mechanism of this embodiment also includes an arc-shaped avoidance groove 204 provided on the mounting seat 220 for the guide wheel 242 to pass through. By providing the avoidance groove 204, the guide wheel 242 can move in the above-mentioned guide groove 201 when moving with the mounting seat 220.

[0046] The overall workflow of the shovel mold device for the 3D printer 100 of this embodiment is as follows:

[0047] After the 3D printer 100 completes printing, the power device drives the scraper 230 to move toward the 3D printer 100 until the scraper 230 moves below the printing plane of the 3D printer 100;

[0048] The 3D printer 100 drives the printing plane to move downward until the pressure detected by the pressure sensor reaches a preset pressure threshold;

[0049] The power device drives the scraper 230 to move, scraping the model off, and the model falls into the receiving box 240 under the action of gravity;

[0050] The power device drives the receiving box 240 to move in the reverse direction. After the guide wheel 242 moves to the inclined section 203, it gradually moves downward to tilt the receiving box 240. The mold in the receiving box 240 falls into the mold receiving box 300 under the action of gravity.

[0051] The above method is repeated repeatedly to complete the transfer of the model from the 3D printer 100 to the mold receiving box 300.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A shovel mold device for a 3D printer, comprising a bracket (200), characterized in that: It also includes a shoveling mold mechanism (210) and a mold receiving box (300); the shoveling mold mechanism (210) includes a mounting seat (220) that can be pushed by a power device to slide on the bracket (200), a scraper (230) provided on the mounting seat (220), and a material receiving box (240) provided on the mounting seat (220) and below the scraper (230); one of the material receiving box (240) and the mounting seat (220) is provided with a rotating shaft (241), and the other is provided with an insertion hole capable of inserting the rotating shaft (241); A guide mechanism is provided between the material receiving box (240) and the bracket (200); when the power device pushes the mounting seat (220) to move toward the 3D printer (100) under the guidance of the guide mechanism, the material receiving box (240) rotates around the rotation axis (241) to a horizontal position; when the power device drives the mounting seat (220) to move toward the mold receiving box (300), the material receiving box (240) rotates around the rotation axis (241) to an inclined position, so that the model falls from the material receiving box (240) into the mold receiving box (300).

2. The shovel mold device for a 3D printer according to claim 1, characterized in that: The guide mechanism comprises a guide groove (201) provided on the bracket (200), and a guide wheel (242) provided on the material receiving box (240) and capable of moving along the guide groove (201); the guide groove (201) comprises a horizontal section (202), and an inclined section (203) connected to an end of the horizontal section (202) close to the mold receiving box (300) and extending obliquely downward.

3. The shovel mold device for a 3D printer according to claim 2, characterized in that: The guide mechanism also includes an arc-shaped avoidance groove (204) provided on the mounting seat (220) for the guide wheel (242) to pass through.

4. The shovel mold device for a 3D printer according to claim 1, characterized in that: A pressure sensor for detecting the pressure on the scraper (230) is provided between the scraper (230) and the mounting seat (220).

5. The shovel mold device for a 3D printer according to claim 1, characterized in that: The power device comprises a motor (410) fixedly mounted on the bracket (200), a lead screw (420) driven by the motor (410) and capable of rotating on the bracket (200), a nut fixedly mounted on the mounting seat (220) and threadedly connected to the lead screw (420); and a guide unit for guiding the movement of the mounting seat (220) is provided between the mounting seat (220) and the bracket (200).

6. The shovel mold device for a 3D printer according to claim 5, characterized in that: The guide unit comprises a support (250) fixedly arranged on the bracket (200), a linear bearing (251) is arranged on the support (250), and a guide shaft slidably arranged in the linear bearing (251) is arranged on the mounting seat (220).

7. The shovel mold device for a 3D printer according to any one of claims 1 to 6, characterized in that: The other end of the scraper (230) extends upwardly in an inclined manner in a direction away from the mounting seat (220).

8. The shovel mold device for a 3D printer according to any one of claims 1 to 6, characterized in that: The support (200) is provided with a limiting member (260), and the limiting member (260) is capable of abutting against an inner side of a printing platform (110) of a 3D printer (100).

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