Bulk sand suction device for 3D printer sand box
By designing a loose sand absorption device for sand boxes for 3D printers, the large suction vortex fan and bag dust collector are used to separate the loose sand, combined with a movable sand storage bucket, the time-consuming and labor-intensive cleaning of loose sand is solved, automatic cleaning and efficient recycling are achieved, and production efficiency is improved.
Patent Information
- Application Number
- CN202422461322.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-10-11
AI Technical Summary
The loose sand cleaning of existing 3D printer sand boxes is time-consuming and laborious, and it cannot be effectively cleaned with conventional vacuum cleaners. It needs to be manually shoveled and transported to the recycling process.
A loose sand absorption device including an upper frame, a lower frame, a whirl fan, a sand-sucking hose and a cylindrical bag dust collector is designed. The loose sand is sucked into the bag dust collector through a large suction vortex fan, and a movable sand storage bucket is used to realize assembly line sand transportation, reducing manual operation.
It realizes automatic cleaning and efficient recycling of loose sand in sand boxes of 3D printers, reduces labor intensity and improves production efficiency.
Smart Images
Figure CN223277148U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the stainless steel casting industry, in particular to a loose sand suction device for a 3D printer sand box. Background Art
[0002] At present, with the maturity of 3D printing technology, sand molds and sand cores can be printed quickly through 3D printers. After printing is completed, there is a large amount of waste sand generated in the 3D printer sand box, which needs to be manually cleaned and recycled. Due to the large amount of loose sand, it cannot be cleaned with a conventional vacuum cleaner and can only be cleaned by manual shoveling. After scooping, it is transported to the loose sand recovery link by a forklift for processing and reuse, which is time-consuming and labor-intensive to clean. Utility Model Content
[0003] The purpose of the present utility model is to solve the above-mentioned problem and provide a loose sand suction device for a 3D printer sand box.
[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a loose sand suction device for a sand box of a 3D printer, comprising an upper frame, a lower frame, a vortex fan, a sand suction hose, a cylindrical bag dust collector and a control electrical cabinet, wherein a cache bin is provided on the upper frame, the cylindrical bag dust collector and the vortex fan are mounted on the top of the cache bin, the lower end of the cylindrical bag dust collector is communicated with the interior of the cache bin, a sand discharge valve is provided at the bottom of the cache bin, the upper frame is mounted on the lower frame, a sand storage hopper is provided on the lower frame, the sand storage hopper is located above the sand discharge valve, and the vortex fan is communicated with the sand box of the 3D printer through the cylindrical bag dust collector and the sand suction hose.
[0005] Preferably, one end of the sand suction hose is connected to the air inlet of the cylindrical bag dust collector, and the other end extends into the sand box of the 3D printer. The vortex fan is connected to the air outlet of the cylindrical bag dust collector through an exhaust pipe.
[0006] Preferably, the cylindrical bag dust collector is a double-layer chamber formed by a metal shell and a bag, the air outlet is opened at the top of the metal shell and is connected to the inner chamber of the bag, the air inlet is opened at the lower part of the metal shell and is connected to the chamber between the metal shell and the outer layer of the bag, and the bottom of the metal shell is open and is connected to the inside of the cache.
[0007] Preferably, the vortex blower is a large vortex blower with a motor power exceeding 10KW.
[0008] Preferably, the control electrical cabinet is electrically connected to the cylindrical bag dust collector and the vortex fan respectively.
[0009] Preferably, rollers are provided at the bottom of the lower frame.
[0010] Preferably, the upper frame and the lower frame are square, and lifting ears are welded on the four corners of the top.
[0011] Preferably, a limiting piece is welded to the top of the lower frame, and the legs of the upper frame are clamped between the limiting pieces.
[0012] Compared with the existing technology, the advantages of the present invention are as follows: the present invention designs a loose sand suction device next to the 3D printer in the 3D printing workshop. The loose sand in the sand box of the 3D printer can be sucked into the cylindrical bag dust collector through a vortex fan with high suction force. The sand is separated by the bags in the cylindrical bag dust collector and falls into the buffer bin for storage. A movable sand storage hopper is designed below the buffer bin to receive the sand in the buffer bin. When the sand in the sand storage hopper is almost full, the upper frame can be hoisted and the sand storage hopper filled with sand can be pushed to the waste sand treatment site for recycling. An empty sand storage hopper can be pushed to the bottom of the upper frame and erected on the lower frame, so that the sand suction and transportation can be realized in an assembly line manner, which greatly facilitates production and use. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0014] In the figure: 1. Upper frame; 2. Lower frame; 3. Buffer bin; 4. Sand storage hopper; 5. Cylindrical bag dust collector; 51. Bag; 6. Sand suction hose; 7. Vortex fan; 8. Control cabinet; 9. Sand discharge valve; 10. Lifting ear; 11. Limiting plate; 12. Roller. DETAILED DESCRIPTION
[0015] Example: The utility model will be further described below. A loose sand suction device for a 3D printer sand box, see Figure 1, including an upper frame 1, a lower frame 2, a vortex fan 7, a sand suction hose 6, a cylindrical bag dust collector 5 and a control cabinet 8. The upper frame 1 is provided with a cache bin 3, the cylindrical bag dust collector 5 and the vortex fan 7 are mounted on the top of the cache bin 3, the lower end of the cylindrical bag dust collector 5 is connected to the inside of the cache bin 3, and a sand discharge valve 9 is provided at the bottom of the cache bin 3. The upper frame 1 is mounted on the lower frame 2, and the lower frame 2 is provided with a sand storage hopper 4. The sand storage hopper 4 is located above the sand discharge valve 9. The vortex fan 7 is connected to the sand box of the 3D printer through the cylindrical bag dust collector 5 and the sand suction hose 6. The present invention is designed to be a loose sand suction device for a 3D printer. The loose sand in the sand box of the 3D printer is sucked into the cylindrical bag dust collector 5 by a vortex blower 7 with high suction force. The sand is separated by the bags 51 in the cylindrical bag dust collector 5 and falls into the buffer bin 3 for storage. The present invention is designed with a movable sand storage hopper 4 below the buffer bin 3 to receive the sand in the buffer bin 3. When the sand in the sand storage hopper 4 is almost full, the upper frame 1 can be hoisted and the sand storage hopper 4 filled with sand can be pushed to a waste sand treatment site for recycling. An empty sand storage hopper 4 can be pushed to the bottom of the upper frame 1 and mounted on the lower frame 2. This can realize the assembly line-style sand suction and transportation, greatly facilitating production and use.
[0016] The working process is as follows: the vortex fan works, sucking air from the inner cavity of the bag 51 to generate negative pressure. The loose sand in the sand box enters the chamber of the outer buffer bin 3 of the cylindrical bag 51 dust collector through the sand suction hose 6 under negative pressure for storage. When the sand is almost full of the chamber, the work is stopped, the sand discharge valve 9 is opened, and the loose sand naturally falls and slides into the sand storage hopper 4. After emptying, the sand discharge valve 9 is closed, and the vortex fan is started again to suck sand.
[0017] One end of the sand suction hose 6 is connected to the air inlet of the cylindrical bag dust collector 5, and the other end extends into the sand box of the 3D printer. The vortex blower 7 is connected to the air outlet of the cylindrical bag dust collector 5 via an exhaust pipe. During operation, the front end of the sand suction hose 6 is not fixed, and a worker can hold the sand suction hose 6 to extract the loose sand from the sand box of the 3D printer. The loose sand suction device is installed between the two 3D printers. When one 3D printer is operating, the other can perform sand cleaning work, thereby alternating operation to improve work efficiency.
[0018] The structural principle of the cylindrical bag-type dust collector 51 is simple, and sand is mainly separated by the bag 51. An existing bag-type dust collector 51 can be purchased, and its lower end can be cut and welded to the buffer bin 3. For cost considerations, it can also be designed by yourself according to the amount of sand absorption, as follows: The cylindrical bag-type dust collector 51 is a double-layer chamber formed by a metal shell and a bag 51. The space between the metal shell and the outer layer of the bag 51 is used as a space for conveying and storing sand. The air outlet is opened at the top of the metal shell and is connected to the inner chamber of the bag 51. The air inlet is opened at the lower part of the metal shell and is connected to the chamber between the metal shell and the outer layer of the bag 51. The bottom of the metal shell is open and is connected to the inside of the buffer bin 3.
[0019] Because sand particles are large and much heavier than dust, to better achieve negative pressure suction of loose sand, the vortex blower 7 uses a large vortex blower with a motor power exceeding 10KW. The control cabinet 8 is electrically connected to the cylindrical bag dust collector 5 and the vortex blower 7, respectively, and can be used to control the switching of the cylindrical bag dust collector 5 and the vortex blower 7.
[0020] The bottom of the lower frame 2 is equipped with rollers 12. These rollers 12 not only allow the entire machine to be moved, but also allow the lower frame 2 to be transported separately when the sand hopper 4 needs to be replaced, which is very convenient. The upper frame 1 and lower frame 2 are square in shape, and each of the four corners is welded with lifting ears 10, which facilitates the lifting of the loose sand suction device as a whole or the lifting of the upper frame 1 and lower frame 2 separately. To ensure that the upper frame 1 is stably mounted on the lower frame 2, a limit plate 11 is welded to the top of the lower frame 2. The legs of the upper frame 1 are clamped between the limit plates 11. The limit plates 11 are arranged in groups of two, and there are four groups of limit plates 11. Each group of two limit plates 11 is vertically welded to the lower frame 2, and the limit plates 11 are all higher than the upper surface of the lower frame 2. The four groups of limit plates 11 are respectively arranged at the four corners of the lower frame 2. The four groups of limit plates 11 can realize the installation and erection of the legs of the upper frame 1.
[0021] The above is a detailed introduction to a loose sand suction device for a 3D printer sand box provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation method and application scope. Changes and improvements to the present invention will be possible without exceeding the concept and scope specified in the appended claims. In summary, the content of this specification should not be understood as limiting the present invention.
Claims
1. A loose sand suction device for a 3D printer sand box, characterized by: It includes an upper frame, a lower frame, a vortex fan, a sand suction hose, a cylindrical bag dust collector and a control cabinet. The upper frame is provided with a cache bin. The cylindrical bag dust collector and the vortex fan are mounted on the top of the cache bin. The lower end of the cylindrical bag dust collector is communicated with the interior of the cache bin. A sand discharge valve is provided at the bottom of the cache bin. The upper frame is mounted on the lower frame. A sand storage hopper is provided on the lower frame. The sand storage hopper is located above the sand discharge valve. The vortex fan is connected to the sand box of the 3D printer through the cylindrical bag dust collector and the sand suction hose.
2. The loose sand suction device for a 3D printer sand box according to claim 1, characterized in that: One end of the sand suction hose is connected to the air inlet of the cylindrical bag dust collector, and the other end extends into the sand box of the 3D printer. The vortex fan is connected to the air outlet of the cylindrical bag dust collector through an exhaust pipe.
3. The loose sand suction device for a 3D printer sand box according to claim 2, characterized in that: The cylindrical bag dust collector is a double-layer chamber formed by a metal shell and a bag. The air outlet is opened at the top of the metal shell and is connected to the inner chamber of the bag. The air inlet is opened at the bottom of the metal shell and is connected to the chamber between the metal shell and the outer layer of the bag. The bottom of the metal shell is open and is connected to the inside of the cache.
4. The loose sand suction device for a 3D printer sand box according to claim 1, characterized in that: The vortex blower is a large vortex blower with a motor power exceeding 10KW.
5. The loose sand suction device for a 3D printer sand box according to claim 1, characterized in that: The control electric cabinet is electrically connected to the cylindrical bag dust collector and the vortex fan respectively.
6. The loose sand suction device for a 3D printer sand box according to claim 1, characterized in that: Rollers are provided at the bottom of the lower frame.
7. The loose sand suction device for a 3D printer sand box according to claim 1, characterized in that: The upper frame and the lower frame are square, and the four corners of the top are welded with lifting ears.
8. The loose sand suction device for a 3D printer sand box according to claim 1, characterized in that: A limiting piece is welded on the top of the lower frame, and the legs of the upper frame are clamped between the limiting pieces.