CN204955463U - What can be used to bull 3D printer plays printer head subassembly - Google Patents

What can be used to bull 3D printer plays printer head subassembly Download PDF

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Publication number
CN204955463U
CN204955463U CN201520724747.1U CN201520724747U CN204955463U CN 204955463 U CN204955463 U CN 204955463U CN 201520724747 U CN201520724747 U CN 201520724747U CN 204955463 U CN204955463 U CN 204955463U
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Prior art keywords
bearing
shower nozzle
fan
bull
nozzle
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CN201520724747.1U
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Chinese (zh)
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王红
史衍钊
韩悦萌
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QINGDAO UNIQUE PRODUCTS DEVELOP CO Ltd
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QINGDAO UNIQUE PRODUCTS DEVELOP CO Ltd
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Abstract

The utility model provides a what can be used to bull 3D printer plays printer head subassembly, including shower nozzle, bearing assembly and radiator unit, the shower nozzle includes shower nozzle body, heating piece, thermocouple, nozzle, choke, special fluorine dragon bushing pipe, heat dissipation fin, pipe and heating rod, bearing assembly includes that bearing frame, X are to bearing and Y to the bearing, radiator unit includes shower nozzle fan and preparation body fan, wherein, the shower nozzle fan the air outlet just to the heat dissipation fin, preparation body fan is 45 contained angles with shower nozzle body axis, and the air outlet is to one side to the nozzle. In the printer working process, the shower nozzle fan dispels the heat to the shower nozzle, and preparation body heat dissipation that preparation body fan air exercise is printed off realizes strengthening the radiating effect to the shower nozzle and the preparation body printed out through heat radiation structure, reduces the forge hot of consumptive material upper segment in beating printer head, can eliminate the end cap, break thread, drag technical problem such as silk, has improved the reliability of printing precision and 3D printer.

Description

Can be used for the print head assembly of bull 3D printer
Technical field
The utility model belongs to 3D printer technology field, specifically, relates to a kind of print head assembly that can be used for bull 3D printer.
Background technology
At present based on FDM(Fused Deposition Modeling) occupation rate of market of the 3D printer of technology is the highest, but print quality is relatively low, and reliability has much room for improvement, and most common failure has consumptive material expand tube and plug, fracture of wire, drags silk.Cause the reason of these faults except material behavior, mainly cause because print head design is unreasonable.
Because heating position exists heat conduction, the middle epimere radiating effect of 3D printhead is bad, and the just premature softening because being heated in the through hole cavity that too high temperature easily causes consumptive material epimere in printhead, this phenomenon can bring following three problems.One: because the via cavities bodily form variable coefficient of metal material is little, inner wall roughness is large, very easily causes consumptive material tube in the cavity of metal throuth hole, causes plug phenomenon; For this problem, current solution in through hole, adds Teflon bushing pipe to improve the smoothness of through-hole wall, but effect is not fairly obvious, can not eradicate expand tube problem.Two: because material premature softening in through hole cavity, can require to improve to the dynamics of the thread consumptive material of conveying, even occur fracture of wire; Current solution be wire feeder to be arranged on above print head assembly and with its one, realize short range wire feed.But nozzle component motional inertia can be caused to strengthen, wire feeding motor is by the thermal-radiating problem of printhead.Three: consumptive material becomes molten state after the shower nozzle of heating, then export from nozzle and realize printing, being difficult to cooling realization fast after exporting solidifies moulding, in shower nozzle mobile print process, the molten state material of firm output easily drags not solidified last printable layer because of bonding, a phenomenon is dragged in formation, has a strong impact on printing precision.
Summary of the invention
The utility model provides a kind of print head assembly that can be used for bull 3D printer, by shower nozzle radiator structure, strengthen to shower nozzle and print prepare body heat radiation, reduce the temperature of consumptive material epimere in printhead, eliminate plug, fracture of wire, drag a fault, improve the reliability of printing precision and 3D printer.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
Propose a kind of print head assembly that can be used for bull 3D printer, comprise shower nozzle, bearing assembly and radiating subassembly; Described shower nozzle comprises head body, heat block, thermocouple, nozzle, trunnion, Teflon bushing pipe, heat-dissipating fin, conduit and heating rod; Described bearing assembly comprises bearing block, X to bearing and Y-direction bearing; Described radiating subassembly comprises shower nozzle fan and prepares body fan; Wherein, described heat block is hollow circuit cylinder, is sleeved on the periphery of described nozzle, and is fixed on the outer wall of described nozzle; Described heating rod and described thermocouple are embedded in the installing hole of described heat block; The upper and lower two ends of described trunnion are connected with described head body and described nozzle respectively; Described Teflon bushing pipe is placed in the inner chamber of described head body, and lower end is docked with the upper end of described trunnion, and upper end is concordant with described head body upper surface; The lower end of described conduit is docked with the upper end of described Teflon bushing pipe, and exposes the upper surface of described bearing block through the duct in described bearing block; Described heat-dissipating fin distributes radially along described head body axis; Described bearing block is for being socketed described X to bearing and described Y-direction bearing; Described X is to bearing for being socketed X-direction guide rod, and described Y-direction bearing is for being socketed Y-direction guide rod; Described shower nozzle fan and described body fan of preparing are installed on blower tray; The air outlet of described shower nozzle fan is just to described heat-dissipating fin; Describedly prepare body fan and described head body axis is 45 ° of angles, air outlet is tiltedly to described nozzle.
Further, described X is respectively two to bearing and described Y-direction bearing.
Further, described heat block adopts copper to do.
Further, described trunnion is metal material.
Further, described trunnion two ends are with external screw thread.
Further, the upper end of described Teflon bushing pipe is bell mouth shape; The lower end of described conduit is docked with the horn mouth of described Teflon bushing pipe upper end.
Further, described heat-dissipating fin is aluminium or copper material.
Further, the diameter range of described heat-dissipating fin is 400mm to 800mm.
Compared with prior art, advantage of the present utility model and good effect are: what the embodiment of the present application proposed can be used in the print head assembly of bull 3D printer, shower nozzle increases the heat radiation conduction that heat-dissipating fin accelerates shower nozzle, and increase shower nozzle fan shower nozzle is dispelled the heat, realize reinforcement radiating effect shower nozzle being entered to silk section, fracture of wire problem can be overcome, long-range wire feed can be realized simultaneously, thus reduce shower nozzle moving loads, avoid because shower nozzle heat radiation causes wire feeding motor temperature too high; By preparing body fan, the body of preparing printed being dispelled the heat, can overcome and drag a problem, ensure that printing precision, and then improve the reliability of 3D printer; Further, strengthen the cephalomotor stability of spray by the design of each two bearings of X, Y both direction, ensure that the stability that shower nozzle significantly moves for a long time fast.
After reading the detailed description of the utility model embodiment by reference to the accompanying drawings, other features of the present utility model and advantage will become clearly.
Accompanying drawing explanation
Fig. 1 is the structural diagrams intention that can be used for the print head assembly of bull 3D printer that the utility model embodiment proposes;
Fig. 2 is the structural representation of the bearing assembly that the utility model embodiment proposes.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in more detail.
As shown in Figure 1, be the structural representation that can be used for the print head assembly of bull 3D printer that the embodiment of the present application proposes, comprise shower nozzle, bearing assembly and radiating subassembly; Shower nozzle comprises head body 100, heat block 101, thermocouple 102, nozzle 103, trunnion 104, Teflon bushing pipe 105, heat-dissipating fin 106, conduit 107 and heating rod 108; Bearing assembly comprises bearing block 201, X to bearing 202 and Y-direction bearing 203; Radiating subassembly comprises shower nozzle fan 301 and prepares body fan 302.
Wherein, heat block 101 is hollow circuit cylinder, is sleeved on the periphery of nozzle 103, and is screwed the outer wall in nozzle 103; Heating rod 108 and thermocouple 102 are embedded in the installing hole of heat block 101, with fastened by screw; Trunnion about 104 two ends are connected with head body 100 and nozzle 103 respectively; Teflon bushing pipe 105 is placed in the inner chamber of head body 100, and lower end is docked with the upper end of trunnion 104, and upper end is concordant with head body 100 upper surface; The lower end of conduit 107 is docked with the upper end of Teflon bushing pipe 105, and exposes the upper surface of bearing block 201 through the duct in bearing block 201; Heat-dissipating fin 106 distributes radially along head body 100 axis.
Bearing block 201 is for being socketed X to bearing 202 and Y-direction bearing 203; Overlap guide rod in bearing, thus realize the guiding that print head assembly prints in X-direction and Y-direction.Wherein, X is to bearing for being socketed X-direction guide rod, and Y-direction bearing is for being socketed Y-direction guide rod.
Shower nozzle fan 301 and prepare body fan 302 and be installed on blower tray; The air outlet of shower nozzle fan 301 is just to heat-dissipating fin 106; Preparing body fan 302 with head body 100 axis is 45 ° of angles, and air outlet is tiltedly to nozzle 103.
Above-mentioned printer module is suitable for existing all 3D printers, be particularly useful for bull 3D printer, shower nozzle increases the heat radiation conduction that heat-dissipating fin accelerates shower nozzle, and increase shower nozzle fan to shower nozzle blowing quickening heat radiation, realize reinforcement radiating effect shower nozzle being entered to silk section, reduce the temperature of consumptive material epimere in printhead, plug can be eliminated, overcome fracture of wire problem, long-range wire feed can be realized simultaneously, thus reduce shower nozzle moving loads, avoid because shower nozzle heat radiation causes wire feeding motor temperature too high; By prepare body fan to print prepare body heat radiation, can overcome print prepare exist in body process drag a problem, ensure that printing precision, and then improve the reliability of 3D printer.
As shown in Figure 2 (only provide single head example in figure, bull is applicable equally), in above-mentioned bearing assembly, X is respectively two groups to bearing and Y-direction bearing, and X is in the bottom of Y-direction bearing to bearing.By the design of each two bearings of X, Y both direction, two parallel guide rods 401 and 402 can be respectively socketed in X, Y both direction, can strengthen like this spraying cephalomotor stability in printhead prints process, thus ensure that the stability that shower nozzle significantly moves for a long time fast.
In the embodiment of the present application, heat block and trunnion adopt metal material to make, and strengthen thermal conduction effect, preferably do by copper.Trunnion two ends are with external screw thread.
The upper end of Teflon bushing pipe is bell mouth shape; The lower end of conduit is docked with the horn mouth of Teflon bushing pipe upper end.
For accelerating thermal conduction effect, heat-dissipating fin is preferably aluminium or copper material makes; Heat-dissipating fin is according to the power of heating rod, and the diameter range selected is 20mm to 50mm.
The print head assembly that can be used for bull 3D printer that above-mentioned the embodiment of the present application proposes, strengthen to shower nozzle and print prepare body heat radiation, reduce the temperature of consumptive material epimere in printhead, eliminate plug, fracture of wire, drag the faults such as silk, long-range wire feed can also be realized, ensure that printing precision, also improve the reliability of 3D printer.And strengthen the cephalomotor stability of spray by the design of each two bearings of X, Y both direction, also just ensure that the stability that shower nozzle significantly moves for a long time fast.
It should be noted that; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned citing; the change that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.

Claims (8)

1. can be used for the print head assembly of bull 3D printer, it is characterized in that, comprise shower nozzle, bearing assembly and radiating subassembly; Described shower nozzle comprises head body, heat block, thermocouple, nozzle, trunnion, Teflon bushing pipe, heat-dissipating fin, conduit and heating rod; Described bearing assembly comprises bearing block, X to bearing and Y-direction bearing; Described radiating subassembly comprises shower nozzle fan and prepares body fan;
Wherein, described heat block is hollow circuit cylinder, is sleeved on the periphery of described nozzle, and is fixed on the outer wall of described nozzle; Described heating rod and described thermocouple are embedded in the installing hole of described heat block; The upper and lower two ends of described trunnion are connected with described head body and described nozzle respectively; Described Teflon bushing pipe is placed in the inner chamber of described head body, and lower end is docked with the upper end of described trunnion, and upper end is concordant with described head body upper surface; The lower end of described conduit is docked with the upper end of described Teflon bushing pipe, and exposes the upper surface of described bearing block through the duct in described bearing block; Described heat-dissipating fin distributes radially along described head body axis; Described bearing block is for being socketed described X to bearing and described Y-direction bearing; Described X is to bearing for being socketed X-direction guide rod, and described Y-direction bearing is for being socketed Y-direction guide rod;
Described shower nozzle fan and described body fan of preparing are installed on blower tray; The air outlet of described shower nozzle fan is just to described heat-dissipating fin; Describedly prepare body fan and described head body axis is 45 ° of angles, air outlet is tiltedly to described nozzle.
2. the print head assembly that can be used for bull 3D printer according to claim 1, is characterized in that, described X is respectively two to bearing and described Y-direction bearing.
3. the print head assembly that can be used for bull 3D printer according to claim 1, is characterized in that, described heat block adopts copper to do.
4. the print head assembly that can be used for bull 3D printer according to claim 1, is characterized in that, described trunnion is metal material.
5. the print head assembly that can be used for bull 3D printer according to claim 1, is characterized in that, described trunnion two ends are with external screw thread.
6. the print head assembly that can be used for bull 3D printer according to claim 1, is characterized in that, the upper end of described Teflon bushing pipe is bell mouth shape; The lower end of described conduit is docked with the horn mouth of described Teflon bushing pipe upper end.
7. the print head assembly that can be used for bull 3D printer according to claim 1, is characterized in that, described heat-dissipating fin is aluminium or copper material.
8. the print head assembly that can be used for bull 3D printer according to claim 1, is characterized in that, the diameter range of described heat-dissipating fin is 20mm to 50mm.
CN201520724747.1U 2015-09-18 2015-09-18 What can be used to bull 3D printer plays printer head subassembly Active CN204955463U (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106079454A (en) * 2016-08-19 2016-11-09 施派智能科技发展(上海)有限公司 A kind of double extruder head of the 3D printer integral type with double cooling air port
CN106113510A (en) * 2016-08-23 2016-11-16 江苏时间环三维科技有限公司 A kind of based on the double colour mixture printhead of FDM3D printer
CN106738914A (en) * 2017-01-23 2017-05-31 福建省速卖通电子商务有限公司 A kind of effective 3D printing head for solving wire drawing phenomenon
CN107813499A (en) * 2017-11-27 2018-03-20 西北工业大学(张家港)智能装备技术产业化研究院有限公司 Anti- wire drawing 3D printer
CN108248041A (en) * 2018-03-20 2018-07-06 河北工业大学 A kind of adjustable 3D printer nozzle of nozzle diameter
CN108527846A (en) * 2018-04-09 2018-09-14 深圳腾龙三维科技有限公司 Independent double nozzle 3D printers
CN109397697A (en) * 2018-12-19 2019-03-01 河南沃思智能科技有限公司 A kind of frame head apparatus for 3D printer
CN110481003A (en) * 2019-08-16 2019-11-22 大连理工大学 A kind of ultrasonic vibration auxiliary 3D printing method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106079454A (en) * 2016-08-19 2016-11-09 施派智能科技发展(上海)有限公司 A kind of double extruder head of the 3D printer integral type with double cooling air port
CN106113510A (en) * 2016-08-23 2016-11-16 江苏时间环三维科技有限公司 A kind of based on the double colour mixture printhead of FDM3D printer
CN106738914A (en) * 2017-01-23 2017-05-31 福建省速卖通电子商务有限公司 A kind of effective 3D printing head for solving wire drawing phenomenon
CN106738914B (en) * 2017-01-23 2019-02-15 陕西恒通智能机器有限公司 A kind of effective 3D printing head for solving wire drawing phenomenon
CN107813499A (en) * 2017-11-27 2018-03-20 西北工业大学(张家港)智能装备技术产业化研究院有限公司 Anti- wire drawing 3D printer
CN108248041A (en) * 2018-03-20 2018-07-06 河北工业大学 A kind of adjustable 3D printer nozzle of nozzle diameter
CN108248041B (en) * 2018-03-20 2023-06-02 河北工业大学 3D printer nozzle with adjustable nozzle caliber
CN108527846A (en) * 2018-04-09 2018-09-14 深圳腾龙三维科技有限公司 Independent double nozzle 3D printers
CN109397697A (en) * 2018-12-19 2019-03-01 河南沃思智能科技有限公司 A kind of frame head apparatus for 3D printer
CN110481003A (en) * 2019-08-16 2019-11-22 大连理工大学 A kind of ultrasonic vibration auxiliary 3D printing method

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