CN217315728U - 3D sand mould printing quantitative sand mixer without weighing - Google Patents
3D sand mould printing quantitative sand mixer without weighing Download PDFInfo
- Publication number
- CN217315728U CN217315728U CN202221051859.1U CN202221051859U CN217315728U CN 217315728 U CN217315728 U CN 217315728U CN 202221051859 U CN202221051859 U CN 202221051859U CN 217315728 U CN217315728 U CN 217315728U
- Authority
- CN
- China
- Prior art keywords
- sand
- curing agent
- storage barrel
- roller mill
- servo motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model discloses policeman has printed quantitative roller mill to 3D sand mould that need not to weigh, it includes: the sand feeding device is used for storing sand and quantitatively conveying the sand to the sand mixing device; the curing agent supply device is used for storing the curing agent and quantitatively conveying the curing agent to the sand mixing device; the sand mixing device is used for mixing sand and a curing agent and storing the mixed sand to be used when printing; the sand feeding device comprises a mounting bracket, a sand storage barrel and a sand conveying mechanism, wherein the sand conveying mechanism comprises a sand feeding screw rod and a first servo motor, and the addition amount of sand is controlled by the first servo motor; the curing agent supply device comprises a storage barrel, a second servo motor and a metering pump, and the addition amount of the curing agent is controlled by connecting the second servo motor and the metering pump in a matched manner. The utility model discloses need not weighing sensor and weigh, avoid easily leading to whole mulling system all unable normal use because of weighing sensor goes wrong, shortened the mulling flow, improved the inefficiency of operation.
Description
Technical Field
The utility model relates to a sand casting field especially relates to a 3D sand mould printing quantitative roller mill that need not to weigh.
Background
The sand mold casting process is to mix sand and glue in a certain proportion for pre-bonding the sand, then pour the mixture into a model and pound the mixture to be solid, and take a mold after hardening to obtain the required casting sand mold. In the traditional casting industry, the sand mixing is finished by carrying out quantitative proportioning and continuous mixing on molding sand and glue water by a continuous sand mixer, and the mode is more applied to large-scale and batch production lines. There are also sand casting machines that use intermittent sand-mulling equipment for spherical mulling, which is used for small-scale or laboratory production, or where there is less demand for each production of sand molds.
The principle of sand mould 3D printing is repeatedly printed the material of certain thickness on the platform, and the circulation is reciprocal, until generating whole formed part. In a sand mold 3D printing occasion, the raw material used by the sand mold 3D printing equipment is sand, the sand is mixed with a curing agent in a certain proportion in a sand mixing system in advance before printing, and then the sand is conveyed to a host computer, the sand is rapidly solidified and bonded when meeting glue during printing, and an area without the glue still keeps a loose state; thus, the solid model can be formed by printing under the alternation of a glue layer and a sand layer, and the model can be obtained by only removing loose powder after printing. Under the principle of sand mold 3D printing, the sand requirement of the equipment is in an intermittent state, the quantity required each time is small, and the sand requirement is intermittent and continuous, which is completely different from the sand requirement of the traditional casting. The difference lies in that: firstly, sand is continuously output at certain fixed quantity and certain time intervals, and the quantity and the time are changed at any time according to process requirements, so that the sand cannot be directly obtained by using traditional equipment; in addition, the precision requirement of the sand mixing system is higher when the sand is mixed, if the proportion deviation of the sand and the curing agent is too large, the quality of a printed model is affected, and if the transmission efficiency of the sand mixing system is low, the balance between the sand mixing amount and the transmission speed is difficult to obtain, so that an efficient and stable sand mixing system is required when the sand mold 3D printing equipment operates.
At present, a sand mixing system of an existing sand mold 3D printing device is shown in fig. 1, sand is conveyed (such as a screw, a vacuum suction and the like) to a metering tank by a conveying assembly which cannot be controlled quantitatively, the sand is weighed by a weighing sensor and then conveyed to a sand mixing tank, a certain proportion of a curing agent is weighed by the weighing sensor and then conveyed to the sand mixing tank, and the sand and the curing agent are stirred. In this flow, the grit weighs and the curing agent needs certain time of weighing, make mulling flow time extension, and can use a plurality of sensors among the weighing process, when a certain sensor goes wrong wherein, whole mulling system all can't normal use, influence whole printing process, in addition, the extraction, weigh, the mulling flow is too long, when great machine needs to be printed, must do a big mulling container, the container of weighing cooperates this flow, so, lead to the volume of mulling system too huge, some account for 1/2 of host computer volume, the setting equals with the host computer scale. Still traditional mulling system is as shown in fig. 2, directly uses three-phase motor drive mulling screw, directly squeezes into the curing agent and carries out the mulling after the grit falls into screw machine, this mulling mode is the same with traditional foundry mulling flow, it is good to mix the grit in advance, exist in the buffer memory bucket for subsequent use, take out the grit again when needing to use, the unable dynamic control of three-phase motor of this mulling device use grit weight, and can't accomplish to mix promptly and use, only can be used in special white sand or the less high-purity silica sand occasion of magazine content, most overlength conventional calcination sand can't use, lead to the limitation very big.
SUMMERY OF THE UTILITY MODEL
The utility model provides a 3D sand mould printing quantitative roller mill that need not to weigh to the flow that needs to weigh when solving traditional roller mill mulling device mulling leads to the mulling flow too long the operating efficiency who leads to low, easily leads to whole mulling system all unable normal use when the sensor goes wrong, and the bulky problem of equipment volume.
In order to solve the technical problem, the utility model provides a technical scheme does:
the utility model relates to a need not 3D sand mould printing quantitative roller mill of weighing, it includes:
the sand feeding device is used for storing sand and quantitatively conveying the sand to the sand mixing device;
the curing agent supply device is used for storing the curing agent and quantitatively conveying the curing agent to the sand mixing device;
and the sand mixing device is used for mixing the sand and the curing agent and storing the mixed sand to be used when printing.
Preferably, the sand feeding device comprises a mounting bracket, a sand storage barrel and a sand conveying mechanism, wherein the sand storage barrel and the sand conveying mechanism are fixed on the mounting bracket, and the bottom end of the sand conveying mechanism is communicated with the sand storage barrel.
Preferably, the sand conveying mechanism comprises a sand feeding screw and a first servo motor, the sand feeding screw is mounted on the mounting bracket through a fixing bracket, the bottom end of the sand feeding screw is communicated with the sand storage barrel, and the first servo motor is fixed at the top end of the sand feeding screw and used for driving the sand feeding screw to rotate so as to convey sand upwards.
Preferably, a first buffer storage barrel is further arranged below the sand storage barrel, and the bottom end of the sand conveying mechanism is communicated with the first buffer storage barrel.
Preferably, the top of installing support be equipped with ton package support, ton package support is located the sand storage bucket directly over, ton package support can be dismantled with the installing support and be connected, ton package support is used for placing the ton package that is equipped with the grit.
Preferably, the curing agent supply device comprises a storage barrel, a second servo motor and a metering pump, wherein the input end of the metering pump is communicated with the storage barrel through a pipeline, and the output end of the metering pump is communicated with the sand mulling device through a pipeline; and the second servo motor is connected with the metering pump and is used for driving the metering pump.
Preferably, the sand mulling device comprises a sand mulling tank, an electric control device, an installation frame and a stirring motor, wherein the electric control device is fixed on the installation frame, the sand mulling tank is fixed on the outer side of the electric control device, and the stirring motor is positioned in the sand mulling tank and electrically connected with the electric control device; the sand feeding device and the curing agent supply device are both communicated with the feed end of the sand mixing tank.
Preferably, the installation frame on still be equipped with second buffer memory bucket, second buffer memory bucket is located the below of the discharge gate of muddy sand jar.
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
1. the utility model relates to a 3D sand mould printing quantitative roller mill that need not to weigh includes sand loading attachment and curing agent feeding device, the sand loading attachment is arranged in saving the grit and carries the grit to the roller mill device with the grit ration, curing agent feeding device is arranged in saving the curing agent and carries the curing agent to the roller mill device with the grit ration, grit and curing agent mix in the roller mill device, carry grit and curing agent through sand loading attachment and curing agent feeding device ration, and no longer adopt weighing sensor to weigh, avoid easily leading to whole roller mill system all unable normal use because of weighing sensor goes wrong, shortened the roller mill flow and then improved the inefficiency of operation.
2. The utility model relates to a need not 3D sand mould printing quantitative roller mill of weighing provides grit and curing agent and mixes in the roller mill device through last sand device and curing agent feeding device ration respectively, and whole process need not to weigh, has shortened the roller mill flow, can realize the grit along with mixing along with usefulness, need not large-scale sand storage device, reduces sand mould 3D printing apparatus's volume.
Drawings
FIG. 1 is a schematic structural diagram of a conventional weighing sand mixer;
FIG. 2 is a schematic view of another conventional continuous sand mixer;
fig. 3 is a perspective view of a 3D sand printing quantitative sand mixer which does not need weighing according to the present invention;
FIG. 4 is a schematic structural view of a sanding device according to the present invention;
FIG. 5 is a schematic structural view of a curing agent supplying apparatus according to the present invention;
FIG. 6 is a schematic structural view of a sand mulling apparatus according to the present invention;
FIG. 7 is a flow chart of the placement of a ton bag onto a ton bag support;
FIG. 8 is a flow chart for lifting the ton bag bracket onto the mounting bracket;
FIG. 9 is a flow diagram of the sand feeder metering sand into the sand mixing device;
FIG. 10 is a flow chart showing the quantitative supply of the curing agent from the curing agent supplying means to the kneading device;
fig. 11 is a schematic view of a sand mulling apparatus mixing sand and a curing agent and outputting the mixed sand.
Illustration of the drawings: 1-sanding device, 11-ton bag bracket, 12-sand storage barrel, 13-first servo motor, 14-sanding screw, 15-screw bracket, 16-first buffer barrel, 17-fixed bracket, 18-mounting bracket, 2-curing agent supply device, 21-second servo motor, 22-metering pump, 23-storage barrel, 24-placing frame, 3-sand mixing device, 31-sand mixing tank, 32-electric control device, 33-second buffer barrel, 34-mounting frame and 35-stirring motor.
Detailed Description
For further understanding of the present invention, the present invention will be described in detail with reference to the following examples, which are provided for illustration of the present invention but are not intended to limit the scope of the present invention.
Referring to the attached drawing 3, the utility model relates to a 3D sand mould printing quantitative roller mill that need not to weigh includes sand device 1, curing agent feeding device 2 and roller mill 3, goes up sand device 1 and sets up 2 and set up respectively in roller mill 3's both sides, and curing agent feeding device 2 installs in roller mill 3's below. The sand feeding device 1 is used for storing sand and quantitatively conveying the sand to the sand mixing device 3; the curing agent supply device 2 is used for storing the curing agent and quantitatively conveying the curing agent to the sand mixing device 3; the sand mixing device 3 is used for mixing sand and a curing agent and storing the mixed sand to be used when printing.
Referring to fig. 3 and 4, the sand feeding device at least comprises a mounting bracket 18, a sand storage barrel 12 and a sand conveying mechanism, wherein the sand storage barrel 12 and the sand conveying mechanism are fixed on the mounting bracket, and the bottom end of the sand conveying mechanism is communicated with the sand storage barrel. The sand conveying mechanism comprises a sand feeding screw 14 and a first servo motor 13, the sand feeding screw 14 is obliquely arranged, the feeding end of the sand feeding screw 14 is located at the bottom of the sand feeding screw, the discharging end of the sand feeding screw 14 is located at the upper part of the sand feeding screw, the sand feeding screw 14 is installed on an installation support 18 through a fixing support 17, a first buffer storage barrel 16 is further arranged below the sand storage barrel 12, the bottom end of the sand feeding screw 14 is communicated with the first buffer storage barrel 16, and the first servo motor 13 is fixed at the top end of the sand feeding screw 14 and used for driving the sand feeding screw 14 to rotate so as to convey sand upwards. Of course, the first buffer barrel 16 may not be provided, and when the first buffer barrel 16 is not provided, the bottom end of the sand feeding screw 14 is directly communicated with the sand storage barrel 12. The top of installing support 18 still be equipped with ton package support 11, ton package support 11 is located the direct top of sand storage bucket 12, ton package support 11 can be dismantled with installing support 18 and be connected, ton package support 11 is used for placing the ton package that is equipped with the grit.
Referring to fig. 3 and 5, the curing agent supply device 2 includes a storage barrel 23, a second servo motor 21 and a metering pump 22, the storage barrel 23 is placed on the ground through a placement frame 24, an input end of the metering pump 22 is communicated with the storage barrel 23 through a pipeline, and an output end of the metering pump 22 is communicated with the sand mulling device 3 through a pipeline; the second servo motor 21 is connected with the metering pump 22, and is used for driving the metering pump 22.
Referring to fig. 3 and 6, the sand mulling device 3 at least comprises a sand mulling tank 31, an electric control device 32, a mounting frame 34 and a stirring motor 35, wherein the electric control device 32 is fixed on the mounting frame 34, the sand mulling tank 31 is fixed on the outer side of the electric control device 32, and the stirring motor 35 extends into the sand mulling tank 31 and is electrically connected with the electric control device 32; the sand feeding device 1 and the curing agent supply device 2 are both communicated with the feeding end of the sand mixing tank 31. Since the length of the sanding screw 14 is large and the sanding screw 14 is disposed obliquely, the sanding screw 14 can be supported on the mounting frame 34 by the screw bracket 15. The sand mixing tank 31 can directly output the mixed sand for the sand type 3D printing equipment to use, of course, a second buffer storage barrel 33 can be additionally arranged on the mounting frame 34 for buffering the mixed sand of the sand mixing tank 31 and outputting the mixed sand to the 3D printing equipment to use when needed, and the second buffer storage barrel 33 is positioned below a discharge hole of the sand mixing tank 31.
The sand mixing method of the quantitative sand mixer for 3D sand mold printing based on the weighing-free method comprises the following steps:
1) conveying sand quantitatively to a sand mixing device through a sand feeding device: referring to fig. 7, the ton bag containing sand is placed in the ton bag holder 11; referring to fig. 8, the ton bag bracket 11 is transported to the mounting bracket 18 by a forklift, a sufficient amount of sand is replenished into the sand storage barrel 12 by the ton bag, part of the sand falls into the buffer storage barrel 16 from a discharge hole at the bottom of the sand storage barrel 12, the first servo motor 13 is started to convey the sand in the buffer storage barrel 16 into the sand mixing tank 31, and the amount of the sand entering the sand mixing tank 31 is controlled by controlling the rotation cycle number of the first servo motor 13;
2) quantitatively conveying the curing agent to the sand mulling device through a curing agent supply device: the second servo motor 21 is started and drives the metering pump 22, the metering pump 22 conveys the curing agent in the storage barrel 23 to the sand mixing tank 31, the metering pump 22 is also used for counting the amount of the added curing agent, when the metering pump 22 runs to a set numerical value, the second servo motor 21 stops running, and the amount of the curing agent is further controlled by matching the metering pump 22 with the second servo motor 21;
3) mixing the sand and the curing agent through a sand mixing device: the electric control device 32 starts the stirring motor 35, the stirring motor 35 stirs the sand and the curing agent, mixing and stirring of the sand and the curing agent are further achieved, when the stirring motor 35 runs for a set time, sand mixing is completed, the sand mixing tank 31 opens a sand falling opening, mixed sand falls into the buffer storage barrel 33, and when the 3D printing host needs the sand, the sand is conveyed to the host from the buffer storage barrel 33.
The present invention has been described in detail with reference to the embodiments, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (8)
1. The utility model provides a need not 3D sand mould printing quantitative roller mill that weighs which characterized in that: it comprises the following steps:
the sand feeding device is used for storing sand and quantitatively conveying the sand to the sand mixing device;
the curing agent supply device is used for storing the curing agent and quantitatively conveying the curing agent to the sand mixing device;
and the sand mixing device is used for mixing the sand and the curing agent and storing the mixed sand for use when printing.
2. The quantitative roller mill for 3D sand mold printing without weighing according to claim 1, characterized in that: the sand feeding device comprises a mounting support, a sand storage barrel and a sand conveying mechanism, wherein the sand storage barrel and the sand conveying mechanism are fixed on the mounting support, and the bottom end of the sand conveying mechanism is communicated with the sand storage barrel.
3. The quantitative roller mill for 3D sand mold printing without weighing according to claim 2, characterized in that: the sand conveying mechanism comprises a sand feeding screw and a first servo motor, the sand feeding screw is mounted on the mounting support through a fixing support, the bottom end of the sand feeding screw is communicated with the sand storage barrel, and the first servo motor is fixed at the top end of the sand feeding screw and used for driving the sand feeding screw to rotate so as to convey sand upwards.
4. The quantitative roller mill for 3D sand mold printing without weighing according to claim 2, characterized in that: and a first buffer storage barrel is arranged below the sand storage barrel, and the bottom end of the sand conveying mechanism is communicated with the first buffer storage barrel.
5. The quantitative roller mill for 3D sand mold printing without weighing according to claim 2, characterized in that: the top of installing support be equipped with ton package support, ton package support is located the sand storage bucket directly over, ton package support can be dismantled with the installing support and be connected, ton package support is used for placing the ton package that is equipped with the grit.
6. The quantitative roller mill for 3D sand mold printing without weighing according to claim 1, characterized in that: the curing agent supply device comprises a storage barrel, a second servo motor and a metering pump, wherein the input end of the metering pump is communicated with the storage barrel through a pipeline, and the output end of the metering pump is communicated with the sand mulling device through a pipeline; and the second servo motor is connected with the metering pump and is used for driving the metering pump.
7. The quantitative roller mill for 3D sand mold printing without weighing according to claim 1, characterized in that: the sand mixing device comprises a sand mixing tank, an electric control device, an installation frame and a stirring motor, wherein the electric control device is fixed on the installation frame, the sand mixing tank is fixed on the outer side of the electric control device, and the stirring motor is positioned in the sand mixing tank and is electrically connected with the electric control device; and the sand feeding device and the curing agent supply device are communicated with the feed end of the sand mixing tank.
8. The quantitative roller mill for 3D sand mold printing without weighing according to claim 7, characterized in that: the installation frame on still be equipped with second buffer memory bucket, second buffer memory bucket is located the below of the discharge gate of muddy sand jar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221051859.1U CN217315728U (en) | 2022-05-05 | 2022-05-05 | 3D sand mould printing quantitative sand mixer without weighing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221051859.1U CN217315728U (en) | 2022-05-05 | 2022-05-05 | 3D sand mould printing quantitative sand mixer without weighing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217315728U true CN217315728U (en) | 2022-08-30 |
Family
ID=82951692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221051859.1U Active CN217315728U (en) | 2022-05-05 | 2022-05-05 | 3D sand mould printing quantitative sand mixer without weighing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217315728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114653890A (en) * | 2022-05-05 | 2022-06-24 | 爱司凯科技股份有限公司 | 3D sand mold printing quantitative sand mixer without weighing and sand mixing method |
-
2022
- 2022-05-05 CN CN202221051859.1U patent/CN217315728U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114653890A (en) * | 2022-05-05 | 2022-06-24 | 爱司凯科技股份有限公司 | 3D sand mold printing quantitative sand mixer without weighing and sand mixing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217315728U (en) | 3D sand mould printing quantitative sand mixer without weighing | |
| CN103252458B (en) | Automatic non-die sand mold manufacturing system | |
| CN213352928U (en) | A dosing unit for concrete production line | |
| CN211389483U (en) | Automatic batching system of concrete mixing plant | |
| CN102806607A (en) | Aluminum powder metering and proportioning system | |
| CN114653890A (en) | 3D sand mold printing quantitative sand mixer without weighing and sand mixing method | |
| CN213290798U (en) | Aggregate weighing device | |
| CN206317239U (en) | A kind of land plaster quantitative filling mixing plant | |
| CN216321714U (en) | UV printing ink automatic blending device | |
| CN203003050U (en) | Foundry sand automatic dosing system | |
| CN210036914U (en) | Aluminum powder weigher | |
| CN212758134U (en) | Mixed feed stirring device | |
| CN201128217Y (en) | High-viscosity two-liquid plastic forming machine | |
| CN207415749U (en) | plasticizing system | |
| CN113926367A (en) | Full-automatic high-precision batch powder or liquid filling control system | |
| CN202826061U (en) | Aluminum powder metering batching system | |
| CN109665337B (en) | Full-automatic auxiliary agent batching system | |
| CN220697062U (en) | Grinding device is used in production of masterbatch that can ration reinforced | |
| CN219445695U (en) | Brake block compounding automatic blending weighing machine constructs | |
| CN218222200U (en) | Dosing unit that can homogeneous mixing | |
| CN214055836U (en) | Casting machine for concrete production line | |
| CN219489587U (en) | Screw conveyor for paint production | |
| CN216099682U (en) | Discharging device | |
| CN215969416U (en) | Concrete apparatus for producing with measurement function | |
| CN211988498U (en) | Batching system with loading attachment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |