CN220444978U

CN220444978U - Mixed preparation facilities of molding sand raw materials for 3D prints

Info

Publication number: CN220444978U
Application number: CN202321826859.9U
Authority: CN
Inventors: 沈光; 江剑; 龚天峰
Original assignee: Wuxi Huisite Rapid Manufacturing Technology Co ltd
Current assignee: Wuxi Huisite Rapid Manufacturing Technology Co ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2024-02-06
Anticipated expiration: 2033-07-12

Abstract

The utility model provides a mixing preparation device of molding sand raw materials for 3D printing, which comprises a sand material fusion tank, a manhole door, a thermometer, a pressure gauge, a support column, a movable wheel, a shaping support rod, a finished product discharge pipe, an anti-sedimentation stirring and mixing rod assembly, a flushing liquid adding pipe assembly, a sand material adding pipe, a control box, a heating pipe and an insulating layer. The sand material adding pipe is beneficial to being connected with a sand material supply pipeline required by 3D sand mould printing, is convenient for adding raw materials, and is simple to operate and convenient to control; the arrangement of the flushing fluid conduit, the flushing coil pipe and the flushing nozzle is beneficial to the connection of a cleaning pipeline to clean the inside of the sand fusion tank after the sand preparation of the sand mould is completed at one time, so that the accuracy of the next use is ensured; the setting of heating pipe and heat preservation is favorable to carrying out the heat preservation heating to the inside 3D sand mould of sand material fusion jar and prints the molding sand raw materials that needs to the fusion is avoided hardening to accelerating the fusion and is twisted and move, efficiency when improving the use.

Description

Mixed preparation facilities of molding sand raw materials for 3D prints

Technical Field

The utility model belongs to the technical field of sand mould 3D printers, and particularly relates to a mixing preparation device of molding sand raw materials for 3D printing.

Background

The casting is the basic industry of our country, is also a parent industry, the casting has sand casting, precision casting, high pressure low pressure casting etc., we mainly see sand casting today, sand casting is to make a set of sand mould first, then pour into metal liquid into to the inside, the former mode is to open the mould first, then go to turn over the sand mould out again, along with the technological development, people's demand cycle is shorter and shorter to the product, the design to the product structure is also more and more complicated, traditional mode is somehow unable to come over, this time 3D prints and begins to get into people's sight, this kind of technique is also called additive manufacturing, can not need the mould, directly print out the sand mould, on the one hand saved time and expense of opening the mould, on the other hand still can not need to consider the draft of turning over the mould, can splice a plurality of sand cores together, integrated into one piece.

The sand mould or the sand mould that 3D printing technique printed can realize the quick production of complicated part, shortens research and development cycle, reduces research and development cost, improves research and development efficiency, has now been widely used in each trade, needs to lay the shaping with molding sand and adhesive one by one in 3D sand mould printing, and the adhesive needs multiple raw materials to fuse, and whether the raw materials melts completely evenly is the key that influences the printing effect, and the raw materials melts inhomogeneous and also leads to printing shower nozzle jam easily, influences printing efficiency.

The molding sand is generally formed by mixing molding materials such as raw sand for casting, a molding sand binder, auxiliary substances and the like in a certain proportion. The molding sand is classified into clay sand, sodium silicate sand, cement sand, resin sand, etc. according to the binder used, wherein the most used is clay sand, sodium silicate sand and resin sand. In addition, the Chinese patent publication number is CN215786565U, and the utility model creates a raw material melting device for 3D sand mould printing, which comprises a melting box, a screen box, an upper cover, a motor and a main shaft; the melting box is of a barrel-shaped structure with an open upper end, and heating wires are uniformly arranged in an interlayer between the barrel wall and the bottom of the melting box; the upper end and the lower end of the screen box are respectively provided with a step structure, and the step structure at the lower end of the screen box is buckled at the upper end of the melting box; the lower end of the upper cover is positioned on a step structure at the upper end of the screen box, and the upper cover is provided with a feeding pipe; the motor is arranged in the center of the upper cover, and an output shaft of the motor penetrates through the upper cover to be connected with the main shaft.

However, the existing molding sand raw materials for 3D printing have the problems that the inner wall of a mixing tank is inconvenient to wash, and the mixing efficiency is low due to poor combination of heating and stirring mixing functions in the mixing preparation process.

In view of this, it is necessary to invent a mixing preparation device of molding sand raw materials for 3D printing.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a mixing preparation device for molding sand raw materials for 3D printing, which aims to solve the problem that the existing molding sand raw materials for 3D printing are inconvenient to wash the inner wall of a mixing tank in the mixing preparation process, and the mixing efficiency is low due to poor combination of heating and stirring functions.

A mixing preparation device of molding sand raw materials for 3D printing comprises a sand material fusion tank, a manhole door, a thermometer, a pressure gauge, a support column, a movable wheel, a shaping support rod, a finished product discharge pipe, an anti-sedimentation stirring and mixing rod assembly, a flushing liquid adding pipe assembly, a sand material adding pipe, a control box, a heating pipe and a heat preservation layer,

the manhole door hinge is connected to the middle position of the front part of the sand material fusion tank; the thermometer is in threaded connection with the right upper side of the front part of the sand material fusion tank and is communicated with the inside of the sand material fusion tank; the pressure gauge is in threaded connection with the left upper side of the front part of the sand material fusion tank and is communicated with the inside of the sand material fusion tank; the support columns are respectively connected with four corners of the lower part of the sand material fusion tank through bolts; the movable wheels are respectively connected to the lower ends of the support columns through bolts; the movable wheels are mute rubber universal wheels with brake pads, and the movable wheels are provided with four wheels; the shaping support rods are transversely connected to the lower parts of the inner sides of two adjacent support columns through bolts; the finished product discharge pipe is connected with the middle position of the lower part of the sand fusion tank in a threaded manner and is communicated with the inside of the sand fusion tank; the anti-sedimentation stirring mixing rod assembly is connected to the middle position of the upper part of the sand fusion tank through a bolt; the flushing additive pipe assembly is inlaid at the right side of the upper part of the sand material fusion tank; the sand adding pipe is inlaid at the left side of the upper part of the sand fusion tank and is communicated with the inside of the sand fusion tank; the control box is connected to the upper part of the front left support column through bolts; the heating pipe is connected to the right side of the inner layer of the sand material fusion tank through screws; the heat preservation layer is glued at the left side of the inner layer of the sand material fusion tank.

Preferably, the anti-sedimentation stirring and mixing rod assembly comprises a servo motor, a speed reducer, an inclined strut and a stirring shaft, wherein the speed reducer is connected with the output end of the servo motor through bolts; the diagonal bracing support rods are respectively connected to the left side and the right side of the servo motor through bolts; the stirring shaft coupler is connected to the output end of the speed reducer.

Preferably, the flushing additive pipe assembly comprises a solution adding pipe, a direction-adjusting valve, a solution conduit and a flushing liquid conduit, wherein the direction-adjusting valve is in threaded connection with the right side of the solution adding pipe; the solution conduit is in threaded connection with the lower part of the solution adding pipe; the flushing fluid conduit is connected to the left lower side of the solution adding pipe in a threaded manner.

Preferably, the upper side bolt of the outside of (mixing) shaft be connected with upper portion stirring vane, upper portion stirring vane's outside top screw connection have the lateral wall scraper blade, the upper side bolt of the outside of (mixing) shaft be connected with lower part stirring vane.

Preferably, the side wall scraping plate is an arc stainless steel plate, and the side wall scraping plate is attached to the inner wall of the sand material fusion tank at a distance of three millimeters to five millimeters.

Preferably, the lower part of the inner side of the solution conduit is connected with an anti-blocking tap through threads.

Preferably, the lower part of the flushing fluid conduit is connected with a flushing coil pipe in a threaded manner, and the lower part of the inner side of the flushing coil pipe is connected with a flushing nozzle in a threaded manner.

Preferably, the flushing coil pipe is arranged in a semicircular shape; the flushing coil pipe is connected with the inner wall of the sand material fusion tank through screws.

Preferably, the bottom of the inner side of the sand material fusion tank is concave; the whole lower stirring blade is also called as concave type arrangement.

Preferably, the heating pipe, the servo motor and the speed reducer are respectively and electrically connected with the control box.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the sand material adding pipe is beneficial to being connected with a sand material supply pipeline required by 3D sand mould printing, so that the raw materials are convenient to add, and the operation is simple and convenient to control.

2. According to the utility model, the arrangement of the solution conduit and the anti-blocking tap is beneficial to connection with a sand material solution supply pipeline required by 3D sand mould printing, so that the requirement of mixing and fusing with sand materials is met.

3. According to the utility model, the flushing liquid guide pipe, the flushing coil pipe and the flushing nozzle are arranged, so that after the sand material of the sand mould is prepared at one time, the cleaning pipeline is connected to clean the inside of the sand material fusion tank, and the accuracy of the next use is ensured.

4. According to the utility model, the heating pipe and the heat preservation layer are arranged, so that the heat preservation and heating of the molding sand raw materials required by the 3D sand mould printing in the sand fusion tank are facilitated, the fusion is accelerated, hardening and screwing are avoided, and the use efficiency is improved.

5. According to the utility model, the arrangement of the thermometer and the pressure gauge is beneficial to checking and controlling the temperature change and the pressure change condition of the whole 3D sand mold raw material processing and preparing process, and ensures that the processing is carried out under safe and controllable conditions.

6. According to the utility model, the movable wheels are arranged, so that the device is convenient to move and fix, and is convenient to connect with a 3D printer, the convenience and flexibility of raw materials in use are improved, and the use efficiency is improved.

7. According to the utility model, the stirring shaft, the upper stirring blade, the side wall scraping plates and the lower stirring blade are arranged, so that the stirring and mixing of 3D printing sand materials are facilitated, and the preparation efficiency and quality are improved.

8. According to the utility model, the side wall scraping plate is attached to the inner wall of the sand material fusion tank at a distance of three to five millimeters, so that the adhering material on the inner wall of the sand material fusion tank can be effectively scraped and cleaned.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view of the structure of the inside of the present utility model.

FIG. 3 is a schematic structural view of the anti-settling stirring mixing rod assembly of the present utility model.

Fig. 4 is a schematic structural view of the flush additive tube assembly of the present utility model.

In the figure:

1. a sand material fusion tank; 2. a manhole door; 3. a thermometer; 4. a pressure gauge; 5. a support column; 6. a moving wheel; 7. shaping the supporting rod; 8. a finished product discharge pipe; 9. anti-sedimentation stirring and mixing rod assembly; 91. a servo motor; 92. a speed reducer; 93. diagonal bracing support rods; 94. a stirring shaft; 941. an upper stirring blade; 942. a sidewall scraper; 943. a lower stirring blade; 10. flushing the liquid adding pipe assembly; 101. adding a solution into a pipe; 102. a direction-regulating valve; 103. a solution conduit; 1031. anti-blocking halter; 104. a flushing fluid conduit; 1041. flushing the coiled pipe; 1042. flushing the spray head; 11. a sand material adding pipe; 12. a control box; 13. heating pipes; 14. and a heat preservation layer.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

examples:

as shown in fig. 1 to 2, the utility model provides a mixing preparation device for molding sand raw materials for 3D printing, which comprises a sand fusion tank 1, an anti-sedimentation stirring mixing rod assembly 9 and a flushing liquid adding pipe assembly 10, wherein the front middle position of the sand fusion tank 1 is hinged with a manhole door 2; the right upper side of the front part of the sand fusion tank 1 is in threaded connection with a thermometer 3 and is communicated with the inside of the thermometer; the left upper side of the front part of the sand fusion tank 1 is in threaded connection with a pressure gauge 4 and is communicated with the inside of the pressure gauge; the temperature change and pressure change conditions of the whole 3D sand mold raw material processing and preparing process are checked and controlled, and the processing is ensured to be carried out under safe and controllable conditions; the four corners of the lower part of the sand fusion tank 1 are respectively connected with support columns 5 by bolts;

further, the lower ends of the support columns 5 are respectively connected with a movable wheel 6 through bolts; the four moving wheels 6 are provided, so that the device can be moved and fixed conveniently and is connected with a 3D printer conveniently, convenience and flexibility of raw materials in use are improved, and the use efficiency is improved;

further, the shaping support rods 7 are connected with the inner lower parts of the two adjacent support columns 5 through transverse bolts; the middle position of the lower part of the sand fusion tank 1 is connected with a finished product discharge pipe 8 in a threaded manner and communicated with the inside of the finished product discharge pipe; the anti-sedimentation stirring and mixing rod assembly 9 is connected to the middle position of the upper part of the sand fusion tank 1 through bolts; the flushing and liquid adding pipe assembly 10 is inlaid at the right side of the upper part of the sand fusion tank 1; the sand material adding pipe 11 is embedded in the left side of the upper part of the sand material fusion tank 1 and is communicated with the inside of the sand material fusion tank, so that the sand material fusion tank is beneficial to being connected with a sand material supply pipeline required by 3D sand mould printing, is convenient for adding raw materials, and is simple to operate and convenient to control; the upper part of the front left support column 5 is connected with a control box 12 through bolts; the right side of the inner layer of the sand material fusion tank 1 is connected with a heating pipe 13 through screws; the left side of the inner layer of the sand fusion tank 1 is glued with an insulating layer 14; the heat preservation and heating are conducted on the molding sand raw materials needed by the 3D sand mould printing in the sand fusion tank 1, so that the fusion is accelerated, hardening and screwing are avoided, and the efficiency in use is improved.

As shown in fig. 3, in the foregoing embodiment, specifically, the anti-precipitation stirring and mixing rod assembly 9 includes a servo motor 91, a speed reducer 92, a diagonal strut 93 and a stirring shaft 94, where the speed reducer 92 is bolted to the output end of the servo motor 91; the diagonal bracing support rods 93 are respectively connected with the left side and the right side of the servo motor 91 through bolts; the stirring shaft 94 is connected with the output end of the speed reducer 92 through a coupling;

further, an upper stirring blade 941 is bolted to the upper outer side of the stirring shaft 94, a side wall scraper 942 is screwed to the top end of the upper stirring blade 941, and a lower stirring blade 943 is bolted to the upper outer side of the stirring shaft 94.

As shown in fig. 4, in the above embodiment, specifically, the flushing additive pipe assembly 10 includes a solution adding pipe 101, a direction-adjusting valve 102, a solution conduit 103 and a flushing liquid conduit 104, where the direction-adjusting valve 102 is screwed on the right side of the solution adding pipe 101; the solution conduit 103 is connected to the lower part of the solution adding pipe 101 by screw threads; the flushing fluid conduit 104 is connected to the left lower side of the solution adding pipe 101 in a threaded manner;

through the arrangement of the structure, the sand material solution supply pipeline which is favorable for being connected with a sand material solution supply pipeline required by 3D sand mould printing is arranged, so that the requirements of mixing and mixing with the sand material are met.

In the above embodiment, specifically, the side wall scraping plate 942 is an arc stainless steel plate, and the side wall scraping plate 942 is attached to the inner wall of the sand fusion tank 1 at a distance of three to five millimeters, which is beneficial to effectively scraping and cleaning the adhesion material on the inner wall of the sand fusion tank 1.

In the above embodiment, specifically, the lower portion of the inner side of the solution conduit 103 is screwed with the anti-blocking tap 1031; the lower part of the flushing fluid conduit 104 is connected with a flushing coil 1041 through screw threads, and the lower part of the inner side of the flushing coil 1041 is connected with a flushing nozzle 1042 through screw threads; the sand fusion tank is beneficial to connecting a cleaning pipeline to clean the inside of the sand fusion tank 1 after the sand of the sand mould is prepared for the first time, and the accuracy of the next time is ensured.

In the above embodiment, in particular, the flushing coil 1041 is provided in a semicircular shape; the flushing coil 1041 is connected with the inner wall of the sand fusion tank 1 by bolts.

In the above embodiment, specifically, the bottom of the inner side of the sand material fusion tank 1 is concave; the lower stirring blade 943 is also referred to as a "concave" arrangement as a whole.

In the above embodiment, specifically, the heating pipe 13, the servo motor 91 and the speed reducer 92 are electrically connected to the control box 12 respectively; the heating pipe with the model S30508 is specifically adopted; the servo motor 91 specifically adopts a motor with the model DS 5; the control box 12 specifically adopts a control box with the model number BXM (D) -6.

The working process of the utility model is as follows: when the preparation of the molding sand raw material for 3D printing is required, the device is moved to a raw material adding position under the action of the moving wheel 6, sand material supply pipelines (including but not limited to clay sand, sodium silicate sand, cement sand, resin sand and the like) are respectively connected with the sand material adding pipe 11, the solution pipeline is connected with the solution conduit 103, so that the raw material is added into the sand material fusion tank 1, the power supply is switched on to start the servo motor 91 to drive the stirring shaft 94, the upper stirring blade 941, the side wall scraping plate 942 and the lower stirring blade 943 to rotate, so that the mixing and stirring effects are realized, and the preparation of the raw material is accelerated;

meanwhile, the heating of the heating pipe 13 is controlled so as to heat the inside of the sand fusion tank 1, the reaction efficiency is improved, the change conditions of the thermometer 3 and the pressure gauge 4 are observed at any time, and after the preparation reaches the standard, the corresponding pipelines and the power supply are disconnected;

and moving the device to the 3D printer accessory again, connecting the feeding pipe of the 3D printer with the finished product discharge pipe 8, and opening a valve on the finished product discharge pipe 8 to feed and print.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The device for preparing the mixture of the molding sand raw materials for 3D printing is characterized by comprising a sand material fusion tank (1), a manhole door (2), a thermometer (3), a pressure gauge (4), a support column (5), a movable wheel (6), a shaping support rod (7), a finished product discharge pipe (8), an anti-sedimentation stirring and mixing rod assembly (9), a flushing and liquid adding pipe assembly (10), a sand material adding pipe (11), a control box (12), a heating pipe (13) and an insulating layer (14),

the manhole door (2) is hinged to the front middle position of the sand material fusion tank (1); the thermometer (3) is in threaded connection with the right upper side of the front part of the sand material fusion tank (1) and is communicated with the inside of the sand material fusion tank; the pressure gauge (4) is in threaded connection with the left upper side of the front part of the sand material fusion tank (1) and is communicated with the inside of the sand material fusion tank; the support columns (5) are respectively connected with four corners of the lower part of the sand material fusion tank (1) through bolts; the shaping support rods (7) are transversely connected with the lower parts of the inner sides of two adjacent support columns (5) through bolts; the finished product discharge pipe (8) is in threaded connection with the middle position of the lower part of the sand material fusion tank (1) and is communicated with the inside of the sand material fusion tank; the anti-sedimentation stirring mixing rod assembly (9) is connected to the middle position of the upper part of the sand fusion tank (1) through bolts; the flushing and liquid adding pipe assembly (10) is inlaid at the right side of the upper part of the sand material fusion tank (1); the sand adding pipe (11) is inlaid at the left side of the upper part of the sand fusion tank (1) and is communicated with the inside of the sand fusion tank; the control box (12) is connected with the upper part of the front left support column (5) through bolts; the heating pipe (13) is connected to the right side of the inner layer of the sand material fusion tank (1) through screws; the heat preservation layer (14) is glued at the left side of the inner layer of the sand material fusion tank (1).

2. The mixing preparation device of the molding sand raw materials for 3D printing according to claim 1, wherein the anti-sedimentation stirring and mixing rod assembly (9) comprises a servo motor (91), a speed reducer (92), a diagonal strut (93) and a stirring shaft (94), and the speed reducer (92) is connected with the output end of the servo motor (91) through bolts; the diagonal bracing support rods (93) are respectively connected to the left side and the right side of the servo motor (91) through bolts; the stirring shaft (94) is connected with the output end of the speed reducer (92) through a shaft coupling.

3. The device for preparing the molding sand raw materials for 3D printing according to claim 1, wherein the flushing additive pipe assembly (10) comprises a solution adding pipe (101), a direction-adjusting valve (102), a solution conduit (103) and a flushing liquid conduit (104), and the direction-adjusting valve (102) is in threaded connection with the right side of the solution adding pipe (101); the solution conduit (103) is in threaded connection with the lower part of the solution adding pipe (101); the flushing fluid conduit (104) is connected to the lower left side of the solution adding pipe (101) in a threaded mode.

4. The device for preparing the mixture of the molding sand raw materials for 3D printing according to claim 2, wherein an upper stirring blade (941) is connected to an external upper bolt of the stirring shaft (94), a side wall scraping plate (942) is connected to an external top screw of the upper stirring blade (941), and a lower stirring blade (943) is connected to an external upper bolt of the stirring shaft (94).

5. The apparatus for preparing the mixture of molding sand materials for 3D printing as claimed in claim 4, wherein the side wall scraping plate (942) is an arc-shaped stainless steel plate, and the side wall scraping plate (942) is attached to the inner wall of the sand fusion pot (1) at a distance of three to five mm.

6. A device for preparing a mixture of molding sand materials for 3D printing according to claim 3, wherein the solution conduit (103) is connected with an anti-blocking tap (1031) at the lower inner side thereof.

7. The apparatus for preparing the mixture of molding sand materials for 3D printing as claimed in claim 3, wherein the lower part of the flushing fluid conduit (104) is screwed with a flushing coil pipe (1041), and the lower part of the inner side of the flushing coil pipe (1041) is screwed with a flushing nozzle (1042).

8. The apparatus for preparing a mixture of molding sand raw materials for 3D printing according to claim 7, wherein the flushing coil (1041) is arranged in a semicircular shape; the flushing coil pipe (1041) is connected with the inner wall of the sand fusion tank (1) through screws.

9. The device for preparing the molding sand raw materials for 3D printing according to claim 4, wherein the bottom of the inner side of the sand fusing tank (1) is concave; the lower stirring blade (943) is also referred to as a "concave" arrangement as a whole.

10. The mixing preparation device of molding sand raw materials for 3D printing according to claim 1, wherein the moving wheels (6) are respectively connected with the lower ends of the support columns (5) by bolts; the movable wheels (6) are silent rubber universal wheels with brake pads, and the movable wheels (6) are provided with four wheels.