CN207205200U - A kind of precoated sand coremaking 3D printing equipment - Google Patents
A kind of precoated sand coremaking 3D printing equipment Download PDFInfo
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- CN207205200U CN207205200U CN201721272372.5U CN201721272372U CN207205200U CN 207205200 U CN207205200 U CN 207205200U CN 201721272372 U CN201721272372 U CN 201721272372U CN 207205200 U CN207205200 U CN 207205200U
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- 239000004576 sand Substances 0.000 title claims abstract description 150
- 238000010146 3D printing Methods 0.000 title claims abstract description 40
- 238000007639 printing Methods 0.000 claims abstract description 148
- 239000000843 powder Substances 0.000 claims abstract description 132
- 238000007648 laser printing Methods 0.000 claims abstract description 43
- 238000000227 grinding Methods 0.000 claims description 71
- 238000003892 spreading Methods 0.000 claims description 48
- 230000007480 spreading Effects 0.000 claims description 46
- 239000000463 material Substances 0.000 claims description 32
- 230000007246 mechanism Effects 0.000 claims description 32
- 210000002489 tectorial membrane Anatomy 0.000 claims description 32
- 238000011084 recovery Methods 0.000 claims description 29
- 238000009434 installation Methods 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 10
- 239000004575 stone Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000013519 translation Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 23
- 230000008569 process Effects 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 238000003860 storage Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003110 molding sand Substances 0.000 description 1
- 230000002685 pulmonary effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model provides a kind of precoated sand coremaking 3D printing equipment, including：Casing, feeding device, printing table apparatus, laying device, laser print apparatus, feed arrangement and central control unit；Casing is the hollow box body of upper opening, and dividing plate is vertically arranged with casing, and casing is separated into separate feeding chamber and printing chamber by dividing plate；Feeding device is arranged in feeding chamber；Printing table apparatus is arranged in print chamber room；Laying device is horizontally set on the top of casing；Laser print apparatus is arranged on the top of printing chamber；Feed arrangement is arranged on casing, and is connected with feeding chamber；Central control unit electrically connects with feeding device, printing table apparatus, laying device, laser print apparatus and feed arrangement respectively.Precoated sand coremaking of the present utility model with 3D printing equipment realize charging process and print procedure synchronously carry out, improve coremaking efficiency, and unnecessary precoated sand powder after laser printing can be recycled.
Description
Technical Field
The utility model relates to a printing apparatus technical field especially relates to a tectorial membrane sand 3D printing apparatus for coremaking.
Background
As is known, in the process of manufacturing the sand core by adopting the traditional mode, the core manufacturing process is complicated, the consumed time is long, the core manufacturing efficiency is low, and meanwhile, the molding quality of the sand core is difficult to ensure, so that the manufacturing cost of the sand core can be greatly improved. As a new technology, compared with the traditional core making mode, the 3D printing precoated sand core making method not only simplifies the core making process and improves the core making efficiency, but also has good molding quality of the sand core made by adopting the 3D printing technology, so that the 3D printing precoated sand core making method has a wide development prospect of the new technology and has higher research value.
However, the existing 3D printing core making equipment can not feed materials while printing, but needs to feed materials separately, which leads to the increase of core making period, thereby directly restricting the further improvement of core making efficiency; in addition, the existing 3D printing core making equipment cannot recover the redundant precoated sand powder after printing is finished, so that the utilization rate of the precoated sand powder is low, partial waste of the precoated sand powder is caused, and the core making cost is increased; in addition, the existing 3D printing core making equipment cannot perform rapid cooling treatment on the manufactured sand core, which also results in an increase in core making period and cost.
Therefore, the 3D printing equipment for manufacturing the core by the precoated sand, which can feed materials at any time, has high printing speed and can recycle the precoated sand powder, is lacked in the prior art.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides a can be reinforced at any time, print fast and recoverable tectorial membrane sand 3D printing apparatus for core making of tectorial membrane sand powder at the printing in-process.
The utility model provides a tectorial membrane sand 3D printing apparatus for coremaking, include: the device comprises a box body, a feeding device, a printing table device, a spreading device, a laser printing device, a feeding device and a central control device; wherein,
the box body is a hollow box body with an opening at the upper part, a partition board is vertically arranged in the box body, and the partition board divides the box body into a feeding cavity and a printing cavity which are mutually independent;
the feeding device is arranged in the feeding cavity and used for pushing the precoated sand powder in the feeding cavity to the spreading device;
the printing table device is arranged in the printing chamber and is used for bearing the precoated sand powder pushed by the material paving device and adjusting the printing height;
the spreading device is horizontally arranged at the top of the box body and used for pushing the precoated sand powder in the feeding cavity to the printing cavity;
the laser printing device is arranged above the printing cavity and is used for performing laser printing on the precoated sand powder in the printing cavity;
the feeding device is arranged on the box body, is communicated with the feeding cavity and is used for feeding materials into the feeding cavity;
the central control device is respectively connected with the feeding device, the printing table device, the spreading device, the laser printing device and the feeding device electrically and is used for controlling the feeding device to push the precoated sand powder to the spreading device, controlling the printing table device to adjust the printing height, controlling the spreading device to push the precoated sand powder in the feeding cavity to the printing cavity, controlling the laser printing device to perform laser printing and controlling the feeding device to feed in the feeding cavity.
Optionally, the feeding device comprises a precoated sand powder bearing panel and a first lifting device; wherein,
the precoated sand powder bearing panel is horizontally arranged in the feeding chamber, and the feeding chamber is vertically divided into a precoated sand powder containing chamber and a first lifting device mounting chamber;
the precoated sand powder accommodating cavity is internally provided with precoated sand powder, and the first lifting device installation cavity is internally provided with a first lifting device;
the fixed end of the first lifting device is fixedly connected with the bottom wall of the first lifting device mounting chamber, and the movable end of the first lifting device is connected with the precoated sand powder bearing panel;
the lifting control end of the first lifting device is electrically connected with the central control device and used for adjusting the lifting height of the first lifting device according to the first lifting height control electric signal sent by the central control device.
Optionally, the printing table device comprises a printing table and a second lifting device; wherein,
the printing workbench is horizontally arranged in the printing chamber, and the printing chamber is vertically divided into a sand core accommodating chamber and a second lifting device mounting chamber;
the sand core accommodating chamber accommodates coated sand powder and/or a printed sand core pushed by the spreading device from the feeding chamber, and the second lifting device is mounted in the second lifting device mounting chamber;
the fixed end of the second lifting device is fixedly connected with the bottom wall of the second lifting device installation chamber, and the movable end of the second lifting device is connected with the printing workbench.
Optionally, the spreading device comprises a conveying device and a spreading roller; wherein,
the conveying device is arranged at the top end of the box body, and a conveying control end of the conveying device is electrically connected with the central control device and used for controlling the reciprocating translation of the conveying device between the feeding chamber and the printing chamber according to a conveying control electric signal sent by the central control device;
the spreading roller is horizontally arranged on the conveying device and is fixedly connected with the conveying device.
Optionally, the conveying means comprises a conveyor belt and two rotating wheels; wherein,
the conveying belt is sleeved on the two rotating wheels;
the two rotating wheels are arranged on the same outer side wall of the top end of the box body through rotating shafts and arranged to cross the feeding cavity and the printing cavity, and at least one transmission control end of each rotating wheel is electrically connected with the central control device and used for controlling the rotation of the rotating wheels according to transmission control electric signals sent by the central control device.
Optionally, the laser printing device comprises a first moving mechanism, a second moving mechanism and a laser emitter; wherein,
the fixed end of the first moving mechanism is arranged at the top end of the box body, the movable end of the first moving mechanism is connected with the movable end of the second moving mechanism, and the movement control end of the first moving mechanism is electrically connected with the central control device and used for controlling the movement of the laser emitter in the direction vertical to the printing table device according to a first movement control electric signal sent by the central control device;
the movement control end of the second movement mechanism is electrically connected with the central control device and is used for controlling the movement of the laser emitter in the direction parallel to the printing table device according to a second movement control electric signal sent by the central control device;
the laser emitter is arranged on the sliding end of the second moving mechanism, and a laser control end of the laser emitter is electrically connected with the central control device and used for carrying out laser printing on the precoated sand powder on the printing table device according to the preset sand core structure electric signal sent by the central control device.
Optionally, the feeding device comprises a feed inlet and a feed pipe, wherein:
the upper end fixedly connected with feed inlet of inlet pipe, the lower extreme of inlet pipe communicates to the material loading cavity.
Optionally, the feeding device further comprises a grinding device; the grinding device is arranged on the feeding pipe and is used for grinding the precoated sand powder; the grinding device comprises a grinding block, a grinding roller and a grinding rotary driving device; wherein,
the grinding blocks are respectively and symmetrically arranged on the inner wall of the feeding pipe by taking the axis of the grinding roller as a central line and are in clearance fit with the grinding roller;
the grinding roller transversely penetrates through the feeding pipe, and the central shaft of the grinding roller is connected with the grinding roller rotation driving device;
the grinding roller rotation driving device is electrically connected with the central control device and used for adjusting the rotation speed of the grinding roller according to a rotation control electric signal sent by the central control device.
Optionally, the device also comprises at least one recovery driving device and a powder collecting device; wherein,
the at least one recovery driving device is communicated with the printing chamber, and the suction control end of the at least one recovery driving device is electrically connected with the central control device and used for sucking residual precoated sand powder in the printing chamber according to a suction control electric signal sent by the central control device;
the powder collecting device is communicated with at least one recovery driving device and is used for containing the precoated sand powder absorbed by the recovery driving device.
Optionally, the recovery driving device comprises a material guide pipe, an induced draft fan and an intelligent control door; wherein,
the material guide pipe is communicated with the printing chamber and the powder collecting device;
the induced draft fan is arranged on the material guide pipe, the inlet end of the induced draft fan is communicated with the printing chamber, the outlet end of the induced draft fan is communicated with the powder collecting device, and the suction control end of the induced draft fan is electrically connected with the central control device and used for sucking residual precoated sand powder in the printing chamber according to a suction control electric signal sent by the central control device;
the intelligent control door is arranged at the interface of the material guide pipe and the printing chamber.
The utility model provides a pair of tectorial membrane sand 3D printing apparatus for coremaking has following beneficial effect:
1. the utility model provides a pair of tectorial membrane sand 3D printing apparatus for coremaking has set up the feed arrangement who is used for reinforced, has realized reinforced process, material loading process and laser printing process and has gone on simultaneously, has avoided going on alone of reinforced process to the coremaking cycle has been shortened, has improved coremaking efficiency.
2. The utility model provides a pair of tectorial membrane sand 3D printing apparatus for core-making is owing to adopt collaborative work such as central control device control loading attachment, print table device, stone device, laser printing device and feed arrangement to realized the accurate printing of psammitolite, guaranteed the size precision and the shaping quality of psammitolite, and print fastly.
3. The utility model provides a pair of 3D printing apparatus is used to tectorial membrane sand coremaking is provided with the grinder that is used for grinding tectorial membrane sand powder on the inlet pipe, grinds the tectorial membrane sand of caking to guaranteed to get into the tectorial membrane sand powder through the inlet pipe and hold the interior tectorial membrane sand of cavity and be the powder state, avoided having the tectorial membrane sand powder of caking state to influence the shaping quality of psammitolite.
4. The utility model provides a 3D printing equipment for precoated sand core making, owing to be provided with recovery drive arrangement and powder collection device, thereby realized the recovery to the surplus precoated sand powder in the psammitolite accommodation chamber, improved the utilization ratio of precoated sand powder, reduced the core making cost of psammitolite; in addition, under the action of the high-speed airflow of the recovery driving device, the sand core in the sand core accommodating chamber can be rapidly cooled, so that the core making efficiency is improved, and the core making cost is reduced.
Drawings
For a clearer explanation of the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an overall structure of a 3D printing apparatus for making a core with precoated sand provided by the present invention;
fig. 2 is a schematic structural diagram of a laser printing device in a 3D printing apparatus for making a core with precoated sand;
FIG. 3 is an enlarged view of the part A of FIG. 1;
fig. 4 is a schematic view of a grinding roller rotation driving device of a grinding device in a 3D printing apparatus for making core with precoated sand according to the present invention;
in the drawings: 1-box body, 10-partition board, 11-feeding chamber, 111-precoated sand powder containing chamber, 112-first lifting device mounting chamber, 12-printing chamber, 121-sand core containing chamber, 122-second lifting device mounting chamber, 2-feeding device, 21-precoated sand powder bearing panel, 22-first lifting device, 3-printing table device, 31-printing table, 32-second lifting device, 4-spreading device, 41-conveying device, 411-conveying belt, 412-rotating wheel, 42-spreading roller, 5-laser printing device, 51-first moving mechanism, 511-supporting rod, 512-first motor, 513-first working arm, 514-second motor, 515-second working arm, 516-connecting piece, 52-second moving mechanism, 53-laser emitter, 6-feeding device, 61-feeding hole, 62-feeding pipe, 63-grinding device, 631-grinding block, 632-grinding roller, 633-grinding roller rotation driving device, 7-central control device, 8-recovery driving device, 81-guide pipe, 82-induced draft fan, 83-intelligent control door and 9-powder collecting device.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Fig. 1 is the utility model provides a pair of tectorial membrane sand is 3D printing apparatus for coremaking's overall structure sketch map. As shown in fig. 1, this tectorial membrane sand 3D printing apparatus for coremaking includes: the automatic feeding device comprises a box body 1, a feeding device 2, a printing table device 3, a spreading device 4, a laser printing device 5, a feeding device 6 and a central control device 7; the box body 1 is a hollow box body with an opening at the upper part, a partition plate 10 is vertically arranged in the box body 1, and the box body 1 is divided into a feeding chamber 11 and a printing chamber 12 which are mutually independent by the partition plate 10; the feeding device 2 is arranged in the feeding cavity 11, can move up and down in the feeding cavity 11, and is used for pushing the coated sand powder in the feeding cavity 11 to the spreading device 4; the printing table device 3 is arranged in the printing chamber 12, can move up and down in the printing chamber 12, and is used for bearing the coated sand powder pushed by the spreading device 4 and adjusting the printing height; the spreading device 4 is horizontally arranged at the top of the box body 1, can be moved between the feeding cavity 11 and the printing cavity 12 in a reciprocating manner, and is used for pushing the coated sand powder in the feeding cavity 11 to the printing cavity 12; the laser printing device 5 is arranged above the printing chamber 12 and is used for performing laser printing on the coated sand powder in the printing chamber 12; the feeding device 6 is arranged on the box body 1, is communicated with the inner cavity of the feeding chamber 11 and is used for feeding materials (namely, precoated sand powder materials) into the feeding chamber 11; central control unit 7 respectively with loading attachment 2, print table device 3, stone device 4, laser printing device 5 and feed arrangement 6 electricity are connected, be used for controlling loading attachment 2 to stone device 4 propelling movement tectorial membrane sand powder, control print table device 3 adjusts the printing height, control stone device 4 carries out laser printing and control feed arrangement 6 reinforced in to the loading cavity 11 according to predetermineeing psammitolite structure signal of telecommunication to the propelling movement of tectorial membrane sand powder to printing cavity 12 in the loading cavity 11, control laser printing device 5.
Box 1 is separated into mutually independent material loading cavity 11 and printing cavity 12 by baffle 10, install loading attachment 2 in the material loading cavity 11, install print table device 3 in the printing cavity 12, this makes loading attachment 2 and print table device 3 independently install respectively, guaranteed that loading attachment 2 and print table device 3 are independent mutually at the during operation, mutual noninterference, guaranteed the stability of loading attachment 2 and print table device 3 work promptly, thereby the system core quality and system core efficiency have been improved.
Specifically, as shown in fig. 1, the box 1 is a rectangular hollow box with an open upper portion, and of course, the box 1 may also be a square hollow box with an open upper portion, and those skilled in the art can design the structural size of the box 1 and the arrangement position of the partition 10 according to the structural sizes of the feeding device 2 and the printing table device 3, and the design is not limited in this respect.
The partition 10 is configured to completely separate the feeding chamber 11 from the printing chamber 12, so as to ensure that the feeding device 2 and the printing table device 3 are independent and do not interfere with each other during operation, i.e. the feeding device 2 and the printing table device 3 are stable during operation, thereby improving the core making quality and the core making efficiency. Wherein the partition 10 can be detachably mounted in the case 1, for example: the clapboard 10 is arranged in the box body 1 through bolts; or may be formed integrally with the box 1, and those skilled in the art may select the material according to the needs, and the material is not limited in this respect.
Optionally, the feeding device 2 comprises a precoated sand powder bearing panel 21 and a first lifting device 22; the precoated sand powder bearing panel 21 is horizontally arranged in the feeding chamber 11, and divides the feeding chamber 11 into a precoated sand powder accommodating chamber 111 and a first lifting device mounting chamber 112 from top to bottom; the precoated sand powder accommodating chamber 111 accommodates precoated sand powder, and the first lifting device 22 is installed in the first lifting device installation chamber 112; the fixed end of the first lifting device 22 is fixedly connected with the bottom wall of the first lifting device installation chamber 112, the movable end of the first lifting device 22 is connected with the precoated sand powder bearing panel 21, and the lifting control end of the first lifting device 22 is electrically connected with the central control device 7 and is used for adjusting the lifting height of the first lifting device 22 according to a first lifting height control electric signal sent by the central control device 7, so that the height of the precoated sand powder bearing panel 21 is adjusted.
The precoated sand powder bearing panel 21 is of a flat plate type structure and is mainly used for bearing precoated sand powder, so that the precoated sand powder bearing panel 21 is ensured to have certain bearing strength; in addition, the horizontal coated sand powder bearing panel 21 should ensure that the coated sand powder accommodating chamber 111 and the first lifting device installation chamber 112 into which the panel is divided are independent of each other, that is, the coated sand powder accommodated in the coated sand powder accommodating chamber 111 cannot enter the first lifting device installation chamber 112, which affects the normal operation of the first lifting device 22.
Alternatively, the printing table device 3 includes a printing table 31 and a second lifting device 32; the printing workbench 31 is horizontally arranged in the printing chamber 12, and divides the printing chamber 12 into a sand core accommodating chamber 121 and a second lifting device mounting chamber 122 from top to bottom; the sand core accommodating chamber 121 accommodates coated sand powder and/or a sand core during or after laser printing, and the second lifting device mounting chamber 122 is internally provided with a second lifting device 32; the fixed end of the second lifting device 32 is fixedly connected with the bottom wall of the second lifting device installation chamber 122, the movable end of the second lifting device 32 is connected with the printing workbench 31, and the lifting control end of the second lifting device 32 is electrically connected with the central control device 7 and used for adjusting the lifting height of the second lifting device 32 according to a second lifting height control electric signal sent by the central control device 7, so that the height of the printing workbench 31 is adjusted.
The printing workbench 31 is also of a flat plate structure and is mainly used for bearing coated sand powder and/or sand cores in the laser printing process or after printing is finished, so that the printing workbench 31 is ensured to have certain bearing strength; in addition, the horizontally arranged printing workbench 31 should ensure that the sand core accommodating chamber 121 and the second lifting device installation chamber 122 partitioned by the horizontal printing workbench are mutually independent, that is, laser printing or residual coated sand powder in the sand core accommodating chamber 121 cannot enter the second lifting device installation chamber 122, which affects the normal operation of the second lifting device 32.
Optionally, the first lifting device 22 and the second lifting device 32 are both lifting hydraulic cylinders.
The spreading device 4 is horizontally arranged at the top of the box body 1, can perform reciprocating translation between the feeding chamber 11 and the printing chamber 12, and is used for pushing the precoated sand powder in the precoated sand powder containing chamber 111 into the sand core containing chamber 121 and spreading the pushed precoated sand powder on the printing workbench 31 in the sand core containing chamber 121; and a feeding device 6 communicated with the precoated sand powder containing chamber 111 is arranged on the side wall of one side of the precoated sand powder containing chamber 111 far away from the sand core containing chamber 121.
Alternatively, as shown in fig. 1, the spreading device 4 comprises a conveyor 41 and a spreading roller 42; wherein, the conveying device 41 is arranged at the top end of the box body 1, and the conveying control end of the conveying device 41 is electrically connected with the central control device 7 and used for controlling the reciprocating translation of the conveying device 41 between the feeding chamber 11 and the printing chamber 12 according to a conveying control electric signal sent by the central control device 7; the spreading roller 42 is horizontally arranged on the conveying device 41 and is fixedly connected with the conveying device 41.
In a particular embodiment, the conveying means 41 comprise a conveyor belt 411 and two rotating wheels 412; wherein, the conveyor belt 411 is sleeved on the two rotating wheels 412; the two rotating wheels 412 are arranged on the same outer side wall at the top end of the box body 1 through a rotating shaft and span the feeding chamber 11 and the printing chamber 12, at least one transmission control end of the two rotating wheels 412 is electrically connected with the central control device 7 and is used for controlling the rotation of the rotating wheels 412 according to a transmission control electric signal sent by the central control device 7 so as to control the reciprocating translation of the transmission device 41 between the feeding chamber 11 and the printing chamber 12; at this time, the end of the spreading roller 42 is fixedly connected to the conveyor 411 by a link.
The spreading roller 42 is a cylinder, and the shaft diameter of the spreading roller 42 is such that the spreading roller 42 can be driven by the conveying device 41 to horizontally roll from the feeding chamber 11 to the printing chamber 12, and the precoated sand powder pushed from the precoated sand powder accommodating chamber 111 can be spread on the plane of the whole printing workbench 31; the thickness of the spreading roller 42 on the printing table 31 can be realized by adjusting the gap between the spreading roller 42 and the printing table 31, specifically by adjusting the support height of the connecting rod; in addition, when the shaft diameter of the spreading roller 42 is too large, the material pushing amount of the spreading roller 42 can also be controlled by adjusting the supporting height of the connecting rod.
It should be noted that, in the process of transferring the spreading roller 42 by the transferring device 41, the two end portions of the spreading roller 42 should be kept to move forward or backward smoothly all the time, so that the amount of the precoated sand powder pushed by any position of the spreading roller 42 is uniform, the uniformity of the spreading roller 42 on the printing workbench 31 is further ensured, and the molding quality of the sand core 3D laser printing is ensured.
Alternatively, as shown in fig. 1 and 2, the laser printing apparatus 5 includes a first moving mechanism 51, a second moving mechanism 52, and a laser emitter 53. Wherein, the fixed end of the first moving mechanism 51 is arranged at the top end of the box body 1, the movable end of the first moving mechanism 51 is connected with the movable end of the second moving mechanism 52, the movement control end of the first moving mechanism 51 is electrically connected with the central control device 7, and is used for controlling the movement of the laser emitter 53 in the direction perpendicular to the printing workbench 31 in the printing table device 3 according to the first movement control electric signal sent by the central control device 7; the movement control end of the second moving mechanism 52 is electrically connected to the central control device 7, and is used for controlling the movement of the laser emitter 53 in the direction parallel to the printing table 31 in the printing table device 3 according to a second movement control electric signal sent by the central control device 7; the laser emitter 53 is arranged on the first moving mechanism 51 and connected with the second moving mechanism 52, and a laser control end of the laser emitter 53 is electrically connected with the central control device 7 and used for performing laser printing on the coated sand powder on the printing workbench 31 in the printing table device 3 according to the preset sand core structure electric signal sent by the central control device 7.
Alternatively, as shown in fig. 1 and 2, the first moving mechanism 51 includes a support rod 511, a first motor 512, a first working arm 513, a second motor 514, a second working arm 515, a connecting member 516, and a limit rod; the lower end of the support rod 511 is fixedly connected with the top end of the side wall of the printing chamber 12 far away from the feeding chamber 11, and the upper end of the support rod 511 is fixedly connected with the first end of the first motor 512; a second end of the first motor 512 is fixedly connected with a first end of the first working arm 513 through a first rotating shaft; a second end of the first working arm 513 is connected with an output end of the second motor 514 and a first end of the second working arm 515 through a second rotating shaft; the second end of the second working arm 515 is rotatably connected with the upper end of the connecting piece 516 through a pin shaft; the lower end of the connecting piece 516 is horizontally and fixedly arranged on a limiting rod (not shown in the figure); the laser transmitter 53 is arranged on the limiting rod in a sliding mode through a connecting piece 516; the second moving mechanism 52 is a cylinder, the fixed end of the cylinder is fixedly connected with the support rod 511 through a limit rod, the movable end of the cylinder is connected with the laser emitter 53, and the cylinder and the laser emitter 5 are arranged on the limit rod together; the first motor 512 and the second motor 514 are respectively electrically connected with the central control device 7, and are used for controlling the movement of the laser emitter 53 in the direction perpendicular to the printing workbench 31 in the printing workbench device 3 according to a first movement control electric signal sent by the central control device 7; the air cylinder is electrically connected with the central control device 7 and is used for controlling the movement of the laser emitter 53 in the direction parallel to the printing workbench 31 in the printing workbench device 3 according to a second movement control electric signal sent by the central control device 7; the laser emitter 53 is electrically connected to the central control device 7, and is configured to perform laser printing on the coated sand powder on the printing table 31 in the printing table device 3 according to the preset electrical signal of the sand core structure sent by the central control device 7.
A first motor 512 for driving the rotation of first working arm 513, and a second motor 514 for driving the rotation of second working arm 515, which cooperate to drive the movement of laser emitter 53 in a first direction, i.e. perpendicular to printing table 31; the extension and retraction of the air cylinder effects a movement of the drive laser emitter 53 in a second direction, i.e. parallel to the printing table 31; the cooperation of the first moving mechanism 51 and the second moving mechanism 52 further realizes the movement of the laser emitter 53 above the whole plane of the printing table 31, i.e. the laser printing can be performed on the coated sand powder at any position on the printing table 31 below the laser emitter.
The limiting rod is used for bearing and mounting the laser emitter 53 on one hand, and is used for limiting the movement of the laser emitter 53 in the second direction on the other hand; the connecting piece 516 is connected with the second end of the second working arm 515 through a pin shaft, so that the connecting piece 516 can be ensured to be always in a horizontal state, namely, the limiting rod is ensured to be always in a horizontal state, and cannot be inclined along with the action of the first moving mechanism 51, and therefore, the laser emitter 53 is ensured to always vertically print the film-coated sand powder on the printing workbench 31 below the laser emitter.
Alternatively, the feeding device 6 comprises a feeding port 61 and a feeding pipe 62; wherein, the upper end fixedly connected with feed inlet 61 of inlet pipe 62, the lower extreme of inlet pipe 62 communicates to tectorial membrane sand powder material and holds cavity 111. Preferably, the feeding port 61 is a trumpet-shaped feeding port, so that feeding can be better realized, and materials are prevented from being scattered. The feeding device 6 is arranged to realize simultaneous operation of the feeding process, the loading process and the laser printing process, and the feeding process is avoided, so that the core making period is shortened, and the core making efficiency is improved.
As shown in fig. 1 and 3, the feeding device 6 further comprises a grinding device 63, wherein the grinding device 63 is disposed on the feeding pipe 62 for grinding the precoated sand powder. Specifically, the grinding device 63 includes a grinding block 631, a grinding roller 632, and a grinding rotation drive device 633; the grinding blocks 631 are symmetrically arranged on the inner wall of the feeding pipe 62 by taking the axis of the grinding roller 632 as a central line and are in clearance fit with the grinding roller 632, so that the coated sand powder is ground by the fit clearance and is conveyed downwards; the grinding roller 632 transversely penetrates through the feeding pipe 62, and the central shaft of the grinding roller 632 is connected with a grinding roller rotation driving device 633; the grinding roller rotation driving device 633 is electrically connected to the central control device 7, and is configured to adjust the rotation speed of the grinding roller 632 according to a rotation control electrical signal sent by the central control device 7, thereby controlling the conveying speed of the coated sand powder.
Specifically, the portion of the grinding block 631 matched with the grinding roller 632 is an arc-shaped groove matched with the axial diameter of the grinding roller 632; the size of the grinding block 631 and the grinding roller 632 should be designed according to the shaft diameter of the feeding pipe 62, and is not particularly limited herein; the grinding block 631 and the grinding roller 632 are preferably detachably provided in the feed pipe 62 to facilitate replacement after a long period of use; optionally, a grinding layer with a certain thickness may be disposed on the grinding working surface of the grinding block 631 matching with the grinding roller 632, so as to ensure the grinding effect of the precoated sand powder.
Optionally, the grinding roller 632 is located on the column side surface in the feeding pipe 62, and a plurality of storage grooves are uniformly distributed along the axial direction of the grinding roller 632, the storage grooves are filled with the precoated sand powder at the upper end of the feeding pipe 62 under the action of self gravity, and the precoated sand powder in the storage grooves continuously rotates along with the grinding roller 632 and continuously falls into the feeding pipe 62 at the lower end, so that the more uniform downward conveying of the precoated sand powder can be realized. The cross-sectional shape and the size of the storage groove can be determined by those skilled in the art according to actual conditions, and are not specifically limited herein, and all belong to the protection scope of the present invention.
Optionally, the utility model provides a pair of tectorial membrane sand 3D printing apparatus for making core is still including being used for holding box 1, loading attachment 2, print table device 3, stone device 4, laser printing device 5 and feed arrangement 6's printing room, thereby realize tectorial membrane sand 3D printing apparatus for making core and external environment's sealed isolation, so not only can avoid loading attachment 2, print table device 3, stone device 4, laser printing device 5 and feed arrangement 6's work avoids external environment's interference, and can avoid printing the tectorial membrane sand powder of in-process and get into external environment, it is pulmonary to be inhaled by external staff, endanger staff's life health. The structural size of the printing chamber can be specifically designed according to the structural sizes of the box body 1, the feeding device 2, the printing table device 3, the spreading device 4, the laser printing device 5, the feeding device 6 and the like, and the shape of the printing chamber can be a cube, a cuboid and the like, and is not specifically limited here.
As shown in fig. 1, the utility model provides a 3D printing apparatus for precoated sand core making, still includes at least one recovery driving device 8 and powder collecting device 9; wherein, at least one recovery driving device 8 is communicated with the sand core accommodating chamber 121 through the chamber wall of the printing chamber 12, and the suction control end of at least one recovery driving device 8 is electrically connected with the central control device 7 and is used for sucking the residual coated sand powder on the printing workbench 31 in the sand core accommodating chamber 121 according to the suction control electric signal sent by the central control device 7; the powder collecting device 9 is communicated with at least one recovery driving device 8 and is used for containing the coated sand powder sucked by the at least one recovery driving device 8. Through the cooperative work of the at least one recovery driving device 8 and the powder collecting device 9, the recovery of redundant coated sand powder in the sand core accommodating chamber 121 is realized, the utilization rate of the coated sand powder is improved, and the manufacturing cost of the sand core is reduced; in addition, under the action of the high-speed air flow of the at least one recovery driving device 8, the sand cores in the sand core accommodating chamber 121 are rapidly cooled, so that the core making efficiency is further improved, and the core making cost is reduced.
Optionally, the recovery driving device 8 is uniformly distributed along the vertical direction of the sand core accommodating chamber 121, so that the coated sand powder at different heights can be rapidly recovered, and in addition, the cooling speed of the formed sand core is further increased.
Further, as shown in fig. 1, the recycling driving device 8 includes a material guiding pipe 81, an induced draft fan 82 and an intelligent control door 83, wherein: the material guide pipe 81 is communicated with the sand core accommodating chamber 121 and the powder collecting device 9; the induced draft fan 82 is arranged on the material guide pipe 81, the inlet end of the induced draft fan 82 is communicated with the sand core accommodating chamber 121, the outlet end of the induced draft fan 82 is communicated with the powder collecting device 9, and the suction control end of the induced draft fan 82 is electrically connected with the central control device 7 and used for sucking the residual precoated sand powder on the printing workbench 31 in the sand core accommodating chamber 121 according to the suction control electric signal sent by the central control device 7; an intelligent control gate 83 is provided at the interface of the guide pipe 81 and the core receiving chamber 121.
As shown in fig. 1 to 4, the central control device 7 imports the data of the sand core to be printed, and the central control device 7 generates corresponding control electrical signals (such as a preset sand core structure electrical signal, a first elevation control electrical signal, a second elevation control electrical signal, a transmission control electrical signal, a first movement control electrical signal, a second movement control electrical signal, a rotation control electrical signal, a suction control electrical signal, etc.) according to the imported data of the sand core to be printed. The precoated sand powder is continuously added into the precoated sand powder containing chamber 111 through the feeding device 6, the rotating speed of the grinding roller 632 is adjusted by the grinding roller rotating driving device 633 according to a rotating control electric signal sent by the central control device 7 in the feeding process, and feeding and grinding are carried out according to a preset feeding speed; the first lifting device 22 controls the precoated sand powder bearing panel 21 to ascend to the position of the auxiliary material roller or to the position of the auxiliary material roller in a semi-submerged mode according to a first lifting height control electric signal sent by the central control device 7; the second lifting device 32 controls the printing workbench 31 to ascend to a designated printing horizontal position according to a second lifting height control electric signal sent by the central control device 7; then the rotating wheel 412 of the conveying device 41 controls the rotating wheel 412 to rotate according to the rotation control electric signal sent by the central control device 7 so as to drive the paving roller 42 fixed on the belt to roll and move forwards, so that the coated sand powder in the coated sand powder containing chamber 111 is pushed to the sand core containing chamber 121 and is paved on the printing workbench 31; after the spreading is finished, the spreading roller 42 returns back to the precoated sand powder accommodating chamber 111 to prepare for next material pushing and spreading; the laser emitter 53 sinters the first layer shape of the sand core printed at this time on the precoated sand powder on the printing workbench 31 according to the preset electrical signal of the sand core, and the second lifting device 32 adjusts the printing workbench 31 to descend, so that the sintered precoated sand is flush with the printing horizontal plane; and sequentially carrying out lower-layer printing.
After printing, the recovery driving device 8 is started to suck the residual precoated sand into the powder collecting device 9, and the residual precoated sand powder is recovered and the molding sand core is cooled.
It should be noted that the electrical connection lines of the central control device 7 to the feeding device 2, the printing table device 3, the spreading device 4, the laser printing device 5 and the feeding device 6 are not drawn in fig. 1, since the connection lines of the central control device 7 to the feeding device 2, the printing table device 3, the spreading device 4, the laser printing device 5 and the feeding device 6 cannot be clearly shown in fig. 1.
The utility model provides a pair of 3D printing apparatus for tectorial membrane sand coremaking has set up the feed arrangement who is used for reinforced, has realized reinforced process, material loading process and laser printing process and has gone on simultaneously, has avoided the independent of reinforced process to shorten the coremaking cycle, improved coremaking efficiency; meanwhile, the central control device is adopted to control the feeding device, the printing table device, the spreading device, the laser printing device, the feeding device and the like to work cooperatively, so that accurate printing of the sand core is realized, the size precision and the forming quality of the sand core are ensured, and the printing speed is high. Furthermore, the utility model provides a pair of 3D printing apparatus is used to tectorial membrane sand coremaking is provided with the grinder that is used for grinding tectorial membrane sand powder on the inlet pipe, grinds the tectorial membrane sand of caking to guaranteed that it is the powder state to get into the tectorial membrane sand powder through the inlet pipe and hold the interior tectorial membrane sand of cavity, the tectorial membrane sand powder of avoiding having the caking state influences the shaping quality of psammitolite. In addition, the 3D printing equipment for manufacturing the core by the precoated sand is provided with the recovery driving device and the powder collecting device, so that the recovery of redundant precoated sand powder in the sand core accommodating chamber is realized, the utilization rate of the precoated sand powder is improved, and the core manufacturing cost of the sand core is reduced; in addition, under the action of the high-speed airflow of the recovery driving device, the sand core in the sand core accommodating chamber can be rapidly cooled, so that the core making efficiency is improved, and the core making cost is reduced.
The present invention has been further described with reference to specific embodiments, but it should be understood that the specific description herein should not be construed as limiting the spirit and scope of the present invention, and that various modifications to the above-described embodiments, which would occur to persons skilled in the art after reading this specification, are within the scope of the present invention.
Claims (10)
1. The utility model provides a tectorial membrane sand 3D printing apparatus for coremaking which characterized in that includes: the automatic feeding device comprises a box body (1), a feeding device (2), a printing table device (3), a spreading device (4), a laser printing device (5), a feeding device (6) and a central control device (7); wherein,
the box body (1) is a hollow box body with an opening at the upper part, a partition plate (10) is vertically arranged in the box body (1), and the box body (1) is divided into a feeding chamber (11) and a printing chamber (12) which are mutually independent by the partition plate (10);
the feeding device (2) is arranged in the feeding cavity (11) and used for pushing the coated sand powder in the feeding cavity (11) to the spreading device (4);
the printing table device (3) is arranged in the printing chamber (12) and is used for bearing the coated sand powder pushed by the spreading device (4) and adjusting the printing height;
the spreading device (4) is horizontally arranged at the top of the box body (1) and used for pushing the coated sand powder in the feeding chamber (11) to the printing chamber (12);
the laser printing device (5) is arranged above the printing chamber (12) and is used for carrying out laser printing on the coated sand powder in the printing chamber (12);
the feeding device (6) is arranged on the box body (1), is communicated with the feeding chamber (11) and is used for feeding materials into the feeding chamber (11);
central control unit (7) respectively with loading attachment (2), print table device (3), stone device (4), laser printing device (5) and feed arrangement (6) electricity are connected, be used for control loading attachment (2) to stone device (4) propelling movement tectorial membrane sand powder, control print table device (3) are adjusted and are printed the height, control stone device (4) are with tectorial membrane sand powder propelling movement in feeding cavity (11) to printing cavity (12), control laser printing device (5) carry out laser printing and control feed arrangement (6) reinforced in feeding cavity (11).
2. 3D printing equipment for making cores with precoated sand according to claim 1, wherein the feeding device (2) comprises a precoated sand powder carrying panel (21) and a first lifting device (22); wherein,
the precoated sand powder bearing panel (21) is horizontally arranged in the feeding chamber (11), and divides the feeding chamber (11) into a precoated sand powder containing chamber (111) and a first lifting device mounting chamber (112) from top to bottom;
the precoated sand powder accommodating chamber (111) accommodates precoated sand powder, and the first lifting device installation chamber (112) is internally provided with a first lifting device (22);
the fixed end of the first lifting device (22) is fixedly connected with the bottom wall of the first lifting device mounting chamber (112), and the movable end of the first lifting device (22) is connected with the precoated sand powder bearing panel (21);
the lifting control end of the first lifting device (22) is electrically connected with the central control device (7) and used for adjusting the lifting height of the first lifting device (22) according to a first lifting height control electric signal sent by the central control device (7).
3. 3D printing apparatus for precoated sand coring according to claim 1, wherein the printing table device (3) comprises a printing table (31) and a second lifting device (32); wherein,
the printing workbench (31) is horizontally arranged in the printing chamber (12) and divides the printing chamber (12) into a sand core accommodating chamber (121) and a second lifting device mounting chamber (122) from top to bottom;
the coated sand powder and/or the printed sand core pushed by the spreading device (4) from the feeding chamber (11) are accommodated in the sand core accommodating chamber (121), and a second lifting device (32) is installed in the second lifting device installation chamber (122);
the fixed end of the second lifting device (32) is fixedly connected with the bottom wall of the second lifting device installation chamber (122), and the movable end of the second lifting device (32) is connected with the printing workbench (31).
4. 3D printing apparatus for the coring of precoated sand according to claim 1, characterized in that the spreading device (4) comprises a conveyor (41) and a spreading roller (42); wherein,
the conveying device (41) is arranged at the top end of the box body (1), and a conveying control end of the conveying device (41) is electrically connected with the central control device (7) and used for controlling the reciprocating translation of the conveying device (41) between the feeding chamber (11) and the printing chamber (12) according to a conveying control electric signal sent by the central control device (7);
the spreading roller (42) is horizontally arranged on the conveying device (41) and is fixedly connected with the conveying device (41).
5. The 3D printing apparatus for precoated sand coring according to claim 4, wherein the conveying device (41) comprises a conveyor belt (411) and two rotating wheels (412); wherein,
the conveyor belt (411) is sleeved on the two rotating wheels (412);
the two rotating wheels (412) are arranged on the same outer side wall at the top end of the box body (1) through a rotating shaft and arranged across the feeding chamber (11) and the printing chamber (12), and at least one transmission control end of the two rotating wheels (412) is electrically connected with the central control device (7) and used for controlling the rotation of the rotating wheels (412) according to a transmission control electric signal sent by the central control device (7).
6. 3D printing apparatus for precoated sand coring according to claim 1, wherein the laser printing device (5) comprises a first moving mechanism (51), a second moving mechanism (52) and a laser emitter (53); wherein,
the fixed end of the first moving mechanism (51) is arranged at the top end of the box body (1), the movable end of the first moving mechanism (51) is connected with the movable end of the second moving mechanism (52), and the moving control end of the first moving mechanism (51) is electrically connected with the central control device (7) and used for controlling the laser emitter (53) to move in the direction vertical to the printing table device (3) according to a first moving control electric signal sent by the central control device (7);
the movement control end of the second movement mechanism (52) is electrically connected with the central control device (7) and is used for controlling the movement of the laser emitter (53) in the direction parallel to the printing table device (3) according to a second movement control electric signal sent by the central control device (7);
the laser emitter (53) is arranged on the sliding end of the second moving mechanism (52), and the laser control end of the laser emitter (53) is electrically connected with the central control device (7) and used for carrying out laser printing on the coated sand powder on the printing table device (3) according to the preset sand core structure electric signal sent by the central control device (7).
7. 3D printing apparatus for precoated sand coremaking according to claim 1, characterized in that the feed device (6) comprises a feed inlet (61) and a feed pipe (62), wherein:
the upper end of the feeding pipe (62) is fixedly connected with a feeding hole (61), and the lower end of the feeding pipe (62) is communicated with the feeding cavity (11).
8. The 3D printing apparatus for core making with precoated sand according to claim 7, wherein the feeding device (6) further comprises a grinding device (63); the grinding device (63) is arranged on the feeding pipe (62) and is used for grinding the precoated sand powder; the grinding device (63) comprises a grinding block (631), a grinding roller (632) and a grinding rotary driving device (633); wherein,
the grinding blocks (631) are respectively and symmetrically arranged on the inner wall of the feeding pipe (62) by taking the axis of the grinding roller (632) as a central line and are in clearance fit with the grinding roller (632);
the grinding roller (632) transversely penetrates through the feeding pipe (62), and the central shaft of the grinding roller (632) is connected with a grinding roller rotation driving device (633);
the grinding roller rotation driving device (633) is electrically connected with the central control device (7) and is used for adjusting the rotation speed of the grinding roller (632) according to a rotation control electric signal sent by the central control device (7).
9. 3D printing apparatus for the coring of precoated sand according to claim 1, further comprising at least one recovery drive device (8) and a powder collection device (9); wherein,
the at least one recovery driving device (8) is communicated with the printing chamber (12), and the suction control end of the at least one recovery driving device (8) is electrically connected with the central control device (7) and used for sucking residual precoated sand powder in the printing chamber (12) according to a suction control electric signal sent by the central control device (7);
the powder collecting device (9) is communicated with at least one recovery driving device (8) and is used for containing the precoated sand powder sucked by the recovery driving device (8).
10. The 3D printing equipment for the precoated sand core making according to claim 9, wherein the recovery driving device (8) comprises a material guide pipe (81), an induced draft fan (82) and an intelligent control door (83); wherein,
the material guide pipe (81) is communicated with the printing chamber (12) and the powder collecting device (9);
the induced draft fan (82) is arranged on the material guide pipe (81), the inlet end of the induced draft fan (82) is communicated with the printing chamber (12), the outlet end of the induced draft fan (82) is communicated with the powder collecting device (9), the suction control end of the induced draft fan (82) is electrically connected with the central control device (7) and used for sucking residual precoated sand powder in the printing chamber (12) according to a suction control electric signal sent by the central control device (7);
an intelligent control door (83) is arranged at the interface of the material guide pipe (81) and the printing chamber (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721272372.5U CN207205200U (en) | 2017-09-29 | 2017-09-29 | A kind of precoated sand coremaking 3D printing equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721272372.5U CN207205200U (en) | 2017-09-29 | 2017-09-29 | A kind of precoated sand coremaking 3D printing equipment |
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| CN207205200U true CN207205200U (en) | 2018-04-10 |
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| CN201721272372.5U Active CN207205200U (en) | 2017-09-29 | 2017-09-29 | A kind of precoated sand coremaking 3D printing equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108672660A (en) * | 2018-06-14 | 2018-10-19 | 张雪燕 | A kind of making precoated sand coremaking 3D printing equipment |
| CN111872326A (en) * | 2020-07-02 | 2020-11-03 | 哈尔滨鼎智瑞光科技有限公司 | Printing sand core based on additive manufacturing and preparation method |
-
2017
- 2017-09-29 CN CN201721272372.5U patent/CN207205200U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108672660A (en) * | 2018-06-14 | 2018-10-19 | 张雪燕 | A kind of making precoated sand coremaking 3D printing equipment |
| CN111872326A (en) * | 2020-07-02 | 2020-11-03 | 哈尔滨鼎智瑞光科技有限公司 | Printing sand core based on additive manufacturing and preparation method |
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Address after: 213000 No. 12, Zhuyun Road, Zhuhu Town, Liyang City, Changzhou City, Jiangsu Province Patentee after: Liujing Technology Group Co.,Ltd. Address before: 213000 No. 12, Zhuyun Road, Zhuhu Town, Liyang City, Changzhou City, Jiangsu Province Patentee before: Liujing Technology Group (Changzhou) Co.,Ltd. |
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Address after: 213000 No. 12, Zhuyun Road, Zhuhu Town, Liyang City, Changzhou City, Jiangsu Province Patentee after: Liujing Technology Group (Changzhou) Co.,Ltd. Address before: 545006 No. 10, Liye Road, Liuzhou Xinxing Industrial Park, Liuzhou City, Guangxi Zhuang Autonomous Region Patentee before: LIUZHOU LIUJING TECHNOLOGY Co.,Ltd. |