3D printing work box and 3D printer

Abstract

The present invention relates to a 3D printing work box and a 3D printer. The 3D printer includes a 3D printing work box. The 3D printing work box includes: a box frame; a lower movable bottom plate, the lower movable bottom plate includes a plurality of forward trapezoidal plates connected in sequence, each of the forward trapezoidal plates is movably installed in the box frame along the same horizontal plane; an upper movable bottom plate, the upper movable bottom plate includes a plurality of reverse trapezoidal plates connected in sequence, each of the reverse trapezoidal plates is movably installed in the box frame along the same horizontal plane, each of the forward trapezoidal plates and each of the reverse trapezoidal plates are superimposed and aligned with each other; and a lifting mechanism, the lifting mechanism includes a printing lifting member and a sand cleaning lifting member, the printing lifting member is connected to each of the forward trapezoidal plates, and the sand cleaning lifting member is connected to each of the reverse trapezoidal plates. The 3D printing work box and the 3D printer can be used for fast sand cleaning of large-sized work boxes.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing, and in particular to a 3D printing work box and a 3D printer. Background Art

[0002] Currently, the work box of 3D printing equipment consists of a base plate and surrounding side walls. The base plate can be raised and lowered along the side walls of the work box by the lifting mechanism of the 3D printing equipment. After printing, the 3D printing equipment needs to perform a sand cleaning operation. The specific process is as follows: the conveying mechanism transports the work box to the sand cleaning station for sand cleaning. After the work box arrives at the sand cleaning station, the lifting mechanism of the sand cleaning station starts to operate, lifting the base plate of the work box. The sand cores and loose sand in the work box rise together with the base plate of the work box. During the rising process, the loose sand in the work box falls into the sand hoppers around the sand cleaning station for collection, and the sand cores are cleaned by a lifting device. However, for large-sized work boxes, the loose sand located in the center of the work box cannot fall into the sand hoppers around the sand cleaning station and needs to be cleaned manually. The cleaning process will generate dust, causing environmental pollution and affecting the automated operation of the equipment. Summary of the Invention

[0003] Based on this, it is necessary to provide a 3D printing work box and a 3D printer suitable for fast sand cleaning of large-size work boxes to address the problem that large-size work boxes require manual thorough cleaning when cleaning sand, which causes serious environmental pollution and low work efficiency.

[0004] A 3D printing work box, the 3D printing work box comprising: a box frame; a lower movable bottom plate, the lower movable bottom plate comprising a plurality of forward trapezoidal plates connected in series, each of the forward trapezoidal plates being movably mounted in the box frame along the same horizontal plane; an upper movable bottom plate, the upper movable bottom plate comprising a plurality of reverse trapezoidal plates connected in series, each of the reverse trapezoidal plates being movably mounted in the box frame along the same horizontal plane, each of the forward trapezoidal plates and each of the reverse trapezoidal plates being superimposed and aligned with each other; and a lifting mechanism, the lifting mechanism comprising a printing lifting member and a sand cleaning lifting member, the printing lifting member being connected to each of the forward trapezoidal plates, and the sand cleaning lifting member being connected to each of the reverse trapezoidal plates.

[0005] In one embodiment, the printing lifting component includes a crossbeam and a pillar, each of the positive trapezoidal plates is sequentially installed on the crossbeam, and the pillar is installed on a side of the crossbeam away from the installation of the positive trapezoidal plate.

[0006] In one embodiment, the box frame includes side panels and fixed panels mounted on the side panels, the bottom panel is provided with a movable area, and each of the positive trapezoidal panels and each of the negative trapezoidal panels positioned opposite to each other are movably mounted on the fixed panels.

[0007] In one embodiment, a support beam is installed on the fixed plate, and the support beam is installed through the movable area.

[0008] In one embodiment, a sealing member is provided between the box frame and each of the positive trapezoidal plates of the lower movable bottom plate.

[0009] In one embodiment, the width of the sand-lowering gap formed between the adjacent positive trapezoidal plates and the reverse trapezoidal plates is 80 mm to 100 mm.

[0010] In one embodiment, the wedge angle formed between two adjacent positive trapezoidal plates is less than 100 degrees.

[0011] In one embodiment, the adjustment spacing between the forward trapezoidal plate and the corresponding reverse trapezoidal plate is 90 mm to 105 mm.

[0012] In one embodiment, the forward trapezoidal plates are spaced apart from each other, and a connector is provided between two adjacent forward trapezoidal plates and / or the reverse trapezoidal plates are spaced apart from each other, and a connector is provided between two adjacent reverse trapezoidal plates.

[0013] A 3D printer comprises the 3D printing work box described in any one of the preceding claims.

[0014] The above-mentioned 3D printing work box and 3D printer, by setting mutually superimposed and aligned forward trapezoidal plates and reverse trapezoidal plates within the box frame, control the printing lifting parts during the printing process to achieve the forward trapezoidal plates connected thereto to descend to a certain height according to the printing requirements, and the corresponding reverse trapezoidal plates follow the descent under the action of their own gravity, so that the work box follows the descent; and by setting a sand cleaning lifting part connected to the reverse trapezoidal plate, it is possible to achieve the effect of lifting and cleaning the sand by controlling the sand cleaning lifting part. In this way, by setting the forward trapezoidal plates and reverse trapezoidal plates that are superimposed and aligned with each other, it is possible to control the printing and sand cleaning, and it is suitable for a thorough automatic cleaning effect on large-sized work boxes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a 3D printing work box according to one embodiment;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of a 3D printing work box according to another embodiment;

[0017] Figure 3 for Figure 2 An enlarged view of the layout structure of the 3D printing work box shown;

[0018] Figure 4 This is a schematic diagram of part of the structure of a 3D printing work box according to one embodiment. DETAILED DESCRIPTION

[0019] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0020] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be an element centered thereon. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "bottom end," "top end," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] In one embodiment, a 3D printing work box comprises: a box frame; a lower movable bottom plate, the lower movable bottom plate comprises a plurality of forward trapezoidal plates connected in series, each of the forward trapezoidal plates being movably mounted in the box frame along the same horizontal plane; an upper movable bottom plate, the upper movable bottom plate comprises a plurality of reverse trapezoidal plates connected in series, each of the reverse trapezoidal plates being movably mounted in the box frame along the same horizontal plane, each of the forward trapezoidal plates and each of the reverse trapezoidal plates being arranged in alignment with each other; and a lifting mechanism, the lifting mechanism comprises a printing lifting member and a sand cleaning lifting member, the printing lifting member being connected to each of the forward trapezoidal plates, and the sand cleaning lifting member being connected to each of the reverse trapezoidal plates.

[0023] In another embodiment, a 3D printer includes a 3D printing workbox, the 3D printing workbox including: a box frame; a lower movable bottom plate, the lower movable bottom plate including a plurality of forward trapezoidal plates connected in series, each of the forward trapezoidal plates being movably mounted in the box frame along the same horizontal plane; an upper movable bottom plate, the upper movable bottom plate including a plurality of reverse trapezoidal plates connected in series, each of the reverse trapezoidal plates being movably mounted in the box frame along the same horizontal plane, each of the forward trapezoidal plates and each of the reverse trapezoidal plates being arranged in alignment with each other; and a lifting mechanism, the lifting mechanism including a printing lifting member and a sand cleaning lifting member, the printing lifting member being connected to each of the forward trapezoidal plates, and the sand cleaning lifting member being connected to each of the reverse trapezoidal plates.

[0024] The 3D printing work box and 3D printer are characterized by providing mutually superimposed and aligned forward and reverse trapezoidal plates within the box frame. During the printing process, the printing lifting parts are controlled to achieve the lowering of each connected forward trapezoidal plate to a certain height according to the printing requirements, and the corresponding reverse trapezoidal plates follow the lowering under the action of their own gravity, so that the work box follows the lowering. Moreover, by providing a sand cleaning lifting part connected to the reverse trapezoidal plate, the sand cleaning lifting part can be controlled to lift the reverse trapezoidal plate, thereby achieving a lifting and sand cleaning effect. In this way, by providing mutually superimposed and aligned forward and reverse trapezoidal plates, printing and sand cleaning can be controlled, and the system is suitable for achieving a thorough and automated cleaning effect on large-sized work boxes.

[0025] The 3D printing work box will be described below in conjunction with specific embodiments to further understand the inventive concept of the 3D printing work box.

[0026] See also Figures 1 to 3 , a 3D printing work box 10, the 3D printing work box includes: a box frame 100; a lower movable bottom plate 200, the lower movable bottom plate includes a plurality of forward trapezoidal plates 210 connected in sequence, each of the forward trapezoidal plates is movably installed in the box frame 100 along the same horizontal plane; an upper movable bottom plate 300, the upper movable bottom plate includes a plurality of reverse trapezoidal plates 310 connected in sequence, each of the reverse trapezoidal plates is movably installed in the box frame along the same horizontal plane, each of the forward trapezoidal plates 210 and each of the reverse trapezoidal plates 310 are superimposed and aligned with each other; and a lifting mechanism 400, the lifting mechanism includes a printing lifting member 410 and a sand cleaning lifting member, the printing lifting member 410 is connected to each of the forward trapezoidal plates 210, and the sand cleaning lifting member is connected to each of the reverse trapezoidal plates 310.

[0027] Specifically, the lower movable bottom plate 200 and the upper movable bottom plate 300 are stacked on each other, and the stacked lower movable bottom plate 200 and the upper movable bottom plate 300 are accommodated in the box frame 100 to form a 3D printing work box.

[0028] In one embodiment, the box frame 100 includes side panels 110 and a fixed plate 120 mounted on the side panels. The fixed plate 120 has a movable area extending therethrough, and the mutually aligned forward trapezoidal plates 210 and reverse trapezoidal plates 310 are movably mounted on the fixed plate 120. Specifically, the box structure of the print work box is formed by the side panels arranged around each other to form a through-structured box frame, and the fixed plate 120 with a movable area is disposed at the bottom of the box frame to form the box frame 100 capable of carrying printed products.

[0029] In one embodiment, a support beam 130 is mounted on the fixed plate 120 and extends through the movable area. The support beam 130 provides stable support for the forward trapezoidal plates 210 and the reverse trapezoidal plates 310 movably mounted on the fixed plate, thereby preventing the forward trapezoidal plates 210 and the reverse trapezoidal plates 310 from being unable to withstand a certain load due to the heavy weight of the molded product. The support beam 130 effectively allows the forward trapezoidal plates 210 and the reverse trapezoidal plates 310 to withstand a certain load.

[0030] In the printing state, a plurality of sequentially connected forward trapezoidal plates 210 and a plurality of sequentially connected reverse trapezoidal plates 310 are stacked and aligned. Thus, during normal printing, the forward trapezoidal plates 210 and reverse trapezoidal plates 310 are positioned close together to form a single printing base. Based on printing requirements, the printing lift 410 is controlled to descend a certain height, thereby driving the connected forward trapezoidal plates 210 downward by a certain height. Under the action of gravity, the reverse trapezoidal plates 310 corresponding to the forward trapezoidal plates 210 also descend, resulting in the printed product being formed on the printing base composed of the plurality of forward trapezoidal plates 210 and the plurality of reverse trapezoidal plates 310.

[0031] In one embodiment, the printing lift 410 includes a crossbeam 411 and a support 412. Each of the forward trapezoidal plates 210 is sequentially mounted on the crossbeam 411, and the support 412 is mounted on the side of the crossbeam away from the side where the forward trapezoidal plates 210 are mounted. Thus, by providing the crossbeam 411, all of the forward trapezoidal plates 210 are centrally mounted on the crossbeam, enabling unified control of the rise and fall of each forward trapezoidal plate 210 to the same height, facilitating smooth control of the rise and fall operations according to printing requirements.

[0032] When printing is completed, the printing work box needs to be sand cleaned. The sand cleaning operation is started by transferring the printing work box to the sand cleaning station. Specifically, the sand cleaning lifting member is controlled to lift the reverse trapezoidal plate 310 connected to it in the vertical direction, so that the positive trapezoidal plate 210 and the reverse trapezoidal plate 310 that are attached to each other in the printing state are separated from each other to form a sand lowering gap.

[0033] It should be noted that the connection between the print lift 410 and the forward trapezoidal plate 210 includes a fixed connection and a contact connection, which can be selected based on the molded size of the print workbox. In this case, a contact connection solution can be selected for large-sized workboxes. This ensures that after printing is completed, when the workbox is moved to the sand cleaning station for sand cleaning, the fixed connection of the print lift 410 will not affect the use of the sand cleaning lift to lift the reverse trapezoidal plate 310, thereby affecting the sand cleaning operation. Accordingly, the sand cleaning lift is in contact with each of the reverse trapezoidal plates 310. In this way, after the workbox is cleaned from the sand, it is separated from the sand cleaning lift and transported to the next station.

[0034] In one embodiment, the forward trapezoidal plates 210 are spaced apart from each other, and a connector is provided between adjacent forward trapezoidal plates 210. In other words, the forward trapezoidal plates 210 are serially connected to form an integrated structure. Thus, the connector sequentially connects the forward trapezoidal plates 210 to form an integrated structure.

[0035] In one embodiment, the inverted trapezoidal plates 310 are spaced apart from each other, and a connector is provided between adjacent inverted trapezoidal plates. In other words, the inverted trapezoidal plates 310 are connected in series to form an integrated structure. Thus, the connector sequentially connects the inverted trapezoidal plates 310 to form an integrated structure.

[0036] In one embodiment, the forward trapezoidal plates 210 are spaced apart from each other, and a connector is provided between adjacent forward trapezoidal plates. The reverse trapezoidal plates 310 are spaced apart from each other, and a connector is provided between adjacent reverse trapezoidal plates. That is, the forward trapezoidal plates 210 and the reverse trapezoidal plates 310 are serially connected using connectors. It should be noted that other connection methods may also be used to connect the forward trapezoidal plates 210 and the reverse trapezoidal plates 310.

[0037] In one embodiment, the connector includes a snap-on connector or a connecting chain. That is, the positive trapezoidal plates 210 are spaced apart from each other, and the distance between two adjacent positive trapezoidal plates 210 is the distance between the short sides of the reverse trapezoidal plates 310; and the reverse trapezoidal plates 310 are spaced apart from each other, and the distance between two adjacent reverse trapezoidal plates 310 is the distance between the short sides of the positive trapezoidal plates 210.

[0038] The above-mentioned 3D printing work box, by setting mutually superimposed and aligned forward trapezoidal plates and reverse trapezoidal plates within the box frame, controls the printing lifting parts during the printing process to achieve the lowering of each connected forward trapezoidal plate to a certain height according to the printing requirements, and the corresponding reverse trapezoidal plates follow the lowering under the action of their own gravity, so that the work box follows the lowering; and by setting a sand cleaning lifting part connected to the reverse trapezoidal plate, it is possible to achieve the effect of lifting and cleaning the sand by controlling the sand cleaning lifting part. In this way, by setting the mutually superimposed and aligned forward trapezoidal plates, it is possible to control the printing and sand cleaning, and it is suitable for the thorough automatic cleaning effect of large-sized work boxes.

[0039] In order to control the forward trapezoidal plate and the reverse trapezoidal plate to be able to synchronously descend during the printing process, in one embodiment, the adjustment spacing between the forward trapezoidal plate 210 and the corresponding reverse trapezoidal plate 310 is 90mm to 105mm. Preferably, the adjustment spacing between the forward trapezoidal plate and the corresponding reverse trapezoidal plate is 95mm. It should be noted that the adjustment spacing between the forward trapezoidal plate 210 and the corresponding reverse trapezoidal plate 310 is the height distance along the vertical direction. The inventors have found through repeated verification that by controlling the adjustment spacing between the forward trapezoidal plate 210 and the corresponding reverse trapezoidal plate 310 to be 90mm to 105mm, it can be ensured that in the process of controlling the descent of the printing lift, the reverse trapezoidal plate 310 can follow the forward trapezoidal plate 210 and descend accordingly without forming a falling gap between them, thereby effectively avoiding the problem of sand leakage during the descent.

[0040] In one embodiment, a seal is provided between the box frame 100 and each of the forward trapezoidal plates 210 of the lower movable bottom plate. In a specific embodiment, the seal is a felt. Since a seal is provided between the forward trapezoidal plate 210 and the side plate, when the printing lift controls the forward trapezoidal plate 210 to descend, the friction force formed between the felt and the side plate will control the descent speed to slow down. At this time, the reverse trapezoidal plate 310, which is supported on the upper part of the forward trapezoidal plate 210, will descend under the action of its own gravity when the forward trapezoidal plate 210 descends. The descent speed is synchronized with the descent speed of the forward trapezoidal plate 210 to overcome the friction force, thereby achieving a seamless slope between the forward trapezoidal plate 210 and the reverse trapezoidal plate 310, ensuring that no sand leaks during the printing process.

[0041] See also Figure 4In one embodiment, the wedge angle formed by the two adjacent positive trapezoidal plates is less than 100 degrees. Preferably, the wedge angle formed by the two adjacent positive trapezoidal plates is 50 degrees to 90 degrees. In a specific embodiment, the wedge angle formed by the two adjacent positive trapezoidal plates is 85 degrees. The inventor has verified through numerous experiments that when the wedge angle formed by the two adjacent positive trapezoidal plates is controlled to be less than 100 degrees, smooth sand cleaning can be guaranteed. Furthermore, if the wedge angle is set relatively smaller, the sand discharge effect will be smoother, which is conducive to effectively cleaning the residual sand in the sand box.

[0042] In another embodiment, a 3D printer includes a 3D printing work box 10, which includes: a box frame 100; a lower movable bottom plate 200, wherein the lower movable bottom plate includes a plurality of forward trapezoidal plates 210 connected in series, each of the forward trapezoidal plates being movably installed in the box frame 100 along the same horizontal plane; an upper movable bottom plate 300, wherein the upper movable bottom plate includes a plurality of reverse trapezoidal plates 310 connected in series, each of the reverse trapezoidal plates being movably installed in the box frame along the same horizontal plane, each of the forward trapezoidal plates 210 and each of the reverse trapezoidal plates 310 being superimposed and aligned with each other; and a lifting mechanism 400, wherein the lifting mechanism includes a printing lifting member 410 and a sand cleaning lifting member, wherein the printing lifting member 410 is connected to each of the forward trapezoidal plates 210, and the sand cleaning lifting member is connected to each of the reverse trapezoidal plates 310.

[0043] The above-mentioned 3D printer arranges mutually superimposed and aligned forward and reverse trapezoidal plates within the box frame of the printing workbox. During the printing process, the printing lifting member is controlled to cause each of the connected forward and reverse trapezoidal plates to descend to a certain height according to the printing requirements. The corresponding reverse trapezoidal plates then descend under the action of their own gravity, thereby achieving the following descent of the workbox. Furthermore, a sand cleaning lifting member is provided in connection with the reverse trapezoidal plates. The sand cleaning lifting member can be controlled to lift the reverse trapezoidal plates, thereby achieving a lifting and sand cleaning effect. In this way, by arranging the mutually superimposed and aligned forward and reverse trapezoidal plates, printing and sand cleaning can be controlled. The printer is particularly suitable for performing a thorough and automated cleaning effect on large-sized workboxes.

[0044] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A 3D printing work box, characterized in that: The 3D printing work box includes: Box frame; A lower movable bottom plate, the lower movable bottom plate comprising a plurality of sequentially connected forward trapezoidal plates, each of the forward trapezoidal plates being movably mounted in the box frame along the same horizontal plane; An upper movable bottom plate, the upper movable bottom plate comprising a plurality of sequentially connected reverse trapezoidal plates, each of the reverse trapezoidal plates being movably mounted within the box frame along the same horizontal plane, each of the forward trapezoidal plates being superimposed and aligned with each of the reverse trapezoidal plates; and A lifting mechanism, the lifting mechanism comprising a printing lifting member and a sand cleaning lifting member, the printing lifting member being connected to each of the positive trapezoidal plates, and the sand cleaning lifting member being connected to each of the reverse trapezoidal plates; The printing lifting member includes a crossbeam and a pillar, each of the positive trapezoidal plates is sequentially mounted on the crossbeam, and the pillar is mounted on a side of the crossbeam away from the side where the positive trapezoidal plate is mounted; A sealing member is provided between the box frame and each of the positive trapezoidal plates of the lower movable bottom plate.

2. The 3D printing work box according to claim 1, characterized in that: The box frame includes side panels and fixed panels mounted on the side panels. The fixed panels are provided with a movable area. The positive trapezoidal panels and the reverse trapezoidal panels that are positioned opposite to each other are movably mounted on the fixed panels.

3. The 3D printing work box according to claim 2, characterized in that: A support beam is installed on the fixed plate, and the support beam is installed through the active area.

4. The 3D printing work box according to claim 1, characterized in that: The wedge angle formed between two adjacent positive trapezoidal plates is less than 100 degrees.

5. The 3D printing work box according to claim 1, characterized in that: The adjustment spacing between the forward trapezoidal plate and the corresponding reverse trapezoidal plate is 90 mm to 105 mm, and the adjustment spacing between the forward trapezoidal plate and the corresponding reverse trapezoidal plate is the height distance along the vertical direction.

6. The 3D printing work box according to claim 1, characterized in that: The forward trapezoidal plates are spaced apart from each other, and a connector is provided between two adjacent forward trapezoidal plates and / or the reverse trapezoidal plates are spaced apart from each other, and a connector is provided between two adjacent reverse trapezoidal plates.

7. A 3D printer, characterized in that: The 3D printer comprises the 3D printing work box according to any one of claims 1 to 6.

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