A kind of nozzle printing head of three-dimensional sand mold printer ten
Technical field
The present invention relates to three-dimensional sand mold printer, more particularly to a kind of nozzle printing head of three-dimensional sand mold printer ten.
Background technology
3 D Printer, also referred to as three-dimensional printer (3D Printer, abbreviation 3DP) are rapid shaping (Rapid
Prototyping, RP) a kind of technique, be layered by the way of layer upon layer and produce threedimensional model, its running be similar to
In conventional printer, only conventional printer is that, the plane drawing that two dimension is formed in ink printed to papery, and three-dimensional is beaten
Print machine is by modes such as jet binder or extrusions the material such as liquid photosensitive resin material, plastic wire, the land plaster of melting
Realize that layer upon layer is superimposed to form 3D solid.Especially three-dimensional printer has significant advantage in be pilot production,
It is such as casting mould manufacturing, it usually needs by sand molding into required die cavity therefore three-dimensional in casting mould production industry
Printer has significant advantage, and existing casting industry three-dimensional printer, it is impossible to spray high-viscosity, nozzle is easily blocked up, and uses the longevity
Life is short, sprays uneven.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of nozzle printing head of three-dimensional sand mold printer ten.
The technical solution adopted for the present invention to solve the technical problems is:A kind of three-dimensional nozzle printing of sand mold printer ten
Head, including printhead framework, be arranged on the horizontal base of the printhead base of frame, be arranged on the printhead frame roof
The casing fixed plate of front side, the casing fixed plate bottom is provided with central box, and liquid storage cylinder is provided with the central box, described
Central box rear side is provided with the liquid inlet joint connected with the liquid storage cylinder, and the printhead framework is provided with and the liquid inlet joint
The feed flow joint of connection, the central box is provided with circuit panel seat, and the circuit panel seat is provided with control board, the bottom
Seat is provided with vertical shower nozzle mounting hole, and the shower nozzle mounting hole is bar hole, and the shower nozzle mounting hole is 10 and into two rows
Arrangement, the base top is provided with strip shower nozzle installation pedestal, and the shower nozzle installation pedestal bottom is provided with head body, the spray
Head body is stretched into the shower nozzle mounting hole, and the head body bottom is provided with equally distributed nozzle, each described shower nozzle sheet
A distribution cavity connected with the nozzle is provided with vivo, the central box of side is provided with and the liquid storage before and after the liquid storage cylinder
The separating tube chamber of two side bottoms connection before and after chamber, the central box bottom is provided with the jet pipe connected with separating tube bottom of chamber portion
Joint, each separating tube chamber connects with 10 spray nozzles, each distribution cavity by two flexible pipes respectively with two spray nozzles
Connection.
By 10 uniform jet binders of head body in above-mentioned design, binding agent is stored by liquid storage cylinder in advance, had
Effect shortens the duct length in printhead, is easy to spray high-viscosity binding agent, each distribution cavity by two flexible pipes respectively with
Two spray nozzle connections, are easy to the cleaning to nozzle, effectively prevent the blocking of nozzle, improve printhead service life.
As the further improvement of the design, it is respectively equipped with the control board and the flow in the head body
The control line that valve is electrically connected with, flow valve is easy to individually control the jet velocity of each head body top nozzle, and injection is accurate.
Used as the further improvement of the design, the casing fixed plate bottom is provided with and vacuumizing that the liquid storage cylinder is connected
Mouthful, the casing fixed plate rear side is provided with the vacuumizing joint connected with the vacuum orifice, and the printhead framework is provided with
Connecting seat is vacuumized with the vacuumizing joint is connected.Vacuum orifice is easy to discharge the gas in liquid storage cylinder, prevents binding agent
Accuracy of spray is low caused by middle generation bubble.
Used as the further improvement of the design, the central box is provided with the level sensing stretched into the liquid storage cylinder and passes
Sensor, is easy to control feeding system to supplement binding agent for liquid storage cylinder.
As the further improvement of the design, three dividing plates be arrangeding in parallel vertically are provided with the liquid storage cylinder, i.e., it is described
The liquid storage cylinder is separated into four chambers by dividing plate from left to right, between being provided between the dividing plate bottom and the liquid storage cylinder bottom
Gap, the liquid level detecting sensor and the liquid inlet joint are located in middle two chambers respectively, the separating tube chamber with it is described
The connected entrance of liquid storage cylinder is located at middle two chambers bottom rear, and dividing plate is easy to liquid level detecting sensor and feed liquor liquid inlet joint
Isolation, prevent to liquid level detecting sensor disturb.
Used as the further improvement of the design, the vacuum orifice is located at the top of chamber residing for the liquid level detecting sensor
Portion, is easy to extract the gas in liquid storage cylinder out, prevents binding agent from sucking vacuum orifice.
Used as the further improvement of the design, the printhead frame roof is provided with and is electrically connected with the control board
Automatically controlled joint, be easy to the connection of control panel.
Used as the further improvement of the design, the nozzle diameter is 50 μm, and each described head body is provided with 128
Nozzle, injection is uniform, is easy to spray high viscosity binding agent.
Used as the further improvement of the design, head body described in two rows is staggered, and two neighboring head body is parallel
Set, the binding agent for ejecting is more uniform in jet face.
The beneficial effects of the invention are as follows:The present invention is pre- by liquid storage cylinder by 10 uniform jet binders of head body
Binding agent is first stored, effectively shortens the duct length in printhead, be easy to spray high-viscosity binding agent, each distribution cavity passes through
Two flexible pipes are connected with two spray nozzles respectively, are easy to the cleaning to nozzle, effectively prevent the blocking of nozzle, improve printhead
Service life.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is dimensional structure diagram of the invention.
Fig. 2 is schematic rear view of the invention.
Fig. 3 is A-A generalized sections of the invention.
Fig. 4 is B-B generalized sections of the invention.
Fig. 5 is head body generalized section of the invention.
The 1. printhead framework in figure, 2. casing fixed plate, 3. automatically controlled joint, 4. feed flow joint, 5. central box, 6. bottom
Seat, 7. shower nozzle mounting hole, 8. liquid inlet joint, 9. vacuumizing joint, 10. vacuumizes connecting seat, 11. liquid level detecting sensors, 12.
Liquid storage cylinder, 13. separating tube chambers, 14. shower nozzle installation pedestals, 15. vacuum orifices, 16. head bodies, 17. spray nozzles, 18. every
Plate, 19. circuit panel seats, 20. control boards, 21. control lines, 22. nozzles, 23. distribution cavities, 24. flow valves.
Specific embodiment
Describe the present invention in detail below in conjunction with accompanying drawing and specific embodiment, illustrative examples therein and say
It is bright to be only used for explaining the present invention but not as a limitation of the invention.
Embodiment:A kind of nozzle printing head of three-dimensional sand mold printer ten, including printhead framework 1, it is arranged on the printing
The horizontal base 6 of head framework 1 bottom, the casing fixed plate 2 being arranged on front side of the top of the printhead framework 1, the casing are consolidated
The bottom of fixed board 2 is provided with and liquid storage cylinder 12 is provided with central box 5, the central box 5, and the rear side of the central box 5 is provided with and institute
The liquid inlet joint 8 of the connection of liquid storage cylinder 12 is stated, the printhead framework 1 is provided with the feed flow joint connected with the liquid inlet joint 8
4, the central box 5 is provided with circuit panel seat 19, and the circuit panel seat 19 is provided with control board 20, on the base 6
Vertical shower nozzle mounting hole 7 is provided with, the shower nozzle mounting hole 7 is bar hole, and the shower nozzle mounting hole 7 is 10 and is arranged into two rows
Row, the top of the base 6 is provided with strip shower nozzle installation pedestal 14, and the bottom of shower nozzle installation pedestal 14 is provided with head body 16,
The head body 16 is stretched into the shower nozzle mounting hole 7, and the bottom of the head body 16 is provided with equally distributed nozzle 22, often
A distribution cavity 23 connected with the nozzle 22, the center of side before and after the liquid storage cylinder 12 are provided with the individual head body 16
Casing 5 is provided with the separating tube chamber 13 connected with two side bottoms before and after the liquid storage cylinder 12, the bottom of the central box 5 be provided with
The spray nozzle 17 of the bottom of separating tube chamber 13 connection, each separating tube chamber 13 connects with 10 spray nozzles 17, each point
Cloth chamber 23 is connected with two spray nozzles 17 respectively by two flexible pipes.
By 10 uniform jet binders of head body 16 in above-mentioned design, by liquid storage cylinder 12, storage is bonded in advance
Agent, effectively shortens the duct length in printhead, is easy to spray high-viscosity binding agent, and each distribution cavity 23 passes through two flexible pipes
Connected with two spray nozzles 17 respectively, be easy to the cleaning to nozzle 22, effectively prevent the blocking of nozzle 22, improving printhead makes
Use the life-span.
As the further improvement of the design, be respectively equipped with the control board 20 with the head body 16
The control line 21 that flow valve 24 is electrically connected with, flow valve 24 is easy to individually control the injection speed of the top nozzle 22 of each head body 16
Degree, injection is accurate.
Used as the further improvement of the design, the bottom of casing fixed plate 2 is provided with and taking out that the liquid storage cylinder 12 is connected
Vacuum port 15, the rear side of the casing fixed plate 2 is provided with the vacuumizing joint 9 connected with the vacuum orifice 15, the printhead
Framework 1 be provided with connected with the vacuumizing joint 9 vacuumize connecting seat 10.Vacuum orifice 15 is easy in discharge liquid storage cylinder 12
Gas, accuracy of spray is low caused by preventing from producing bubble in binding agent.
Used as the further improvement of the design, the central box 5 is provided with the liquid level inspection stretched into the liquid storage cylinder 12
Sensor 11 is surveyed, is easy to control feeding system to supplement binding agent for liquid storage cylinder 12.
As the further improvement of the design, three dividing plates 18 be arrangeding in parallel vertically are provided with the liquid storage cylinder 12, i.e.,
The liquid storage cylinder 12 is separated into four chambers, the bottom of the dividing plate 18 and the bottom of the liquid storage cylinder 12 by the dividing plate 18 from left to right
Gap is provided between portion, the liquid level detecting sensor 11 and the liquid inlet joint 8 are located in middle two chambers respectively, described
Separating tube chamber 13 is located at middle two chambers bottom rear with the connected entrance of the liquid storage cylinder 12, and dividing plate 18 is easy to level sensing
Sensor 11 is isolated with feed liquor liquid inlet joint 8, prevents from disturbing liquid level detecting sensor 11.
Used as the further improvement of the design, the vacuum orifice 15 is located at chamber residing for the liquid level detecting sensor 11
Top, be easy to extract out liquid storage cylinder 12 in gas, prevent binding agent suck vacuum orifice 15.
Used as the further improvement of the design, the top of the printhead framework 1 is provided with electrical with the control board 20
The automatically controlled joint 3 of connection, is easy to the connection of control panel.
Used as the further improvement of the design, 22 a diameter of 50 μm of the nozzle, each described head body 16 is provided with
128 nozzles 22, injection is uniform, is easy to spray high viscosity binding agent.
Used as the further improvement of the design, head body 16 is staggered described in two rows, two neighboring head body 16
It is arranged in parallel, the binding agent for ejecting is more uniform in jet face.
Embodiments of the invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.