CN205395190U - A 3D print head for making rubber materials - Google Patents
A 3D print head for making rubber materials Download PDFInfo
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- CN205395190U CN205395190U CN201620174208.XU CN201620174208U CN205395190U CN 205395190 U CN205395190 U CN 205395190U CN 201620174208 U CN201620174208 U CN 201620174208U CN 205395190 U CN205395190 U CN 205395190U
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- elastomeric material
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Abstract
The utility model relates to a 3D print head for making rubber materials belongs to 3D and prints equipment technical field. Including the base plate, be provided with the filling tube at base plate middle part, the main part of filling tube is located the below of base plate, and filling tube below is the nozzle, sets up cooling parts in the outside on the upper portion of filling tube, is the heater block in the below outside of filling tube, and the outer wall of nozzle comprises multilayer structure, and the inlayer is the heat -conducting layer, the heat -conducting layer contacts fixedly rather than the elasticity heat preservation in the outside, be the outer wall in the outside of elasticity heat preservation, is provided with pressure drive mechanism on the upper portion of elasticity heat preservation. This 3D for the printer shower nozzle can be used for the 3D printing technique to make rubber materials, especially air core tyre in -process effectively, rubber materials heating back is difficult to block up the shower nozzle.
Description
Technical field
The present invention relates to a kind of 3D printer head for manufacturing elastomeric material, be particularly suitable for manufacturing hollow rubber tire, belong to 3D and print equipment technology field.
Background technology
3D printing technique (3Dprinting), the i.e. one of Rapid Prototyping technique, it is based on a kind of mathematical model file, use powdery metal or plastics etc. can jointing material, carried out the technology of constructed object by the mode successively printed.Past, its field such as Making mold, industrial design of being everlasting was used to modeling, was now increasingly used for the direct manufacture of some products.Particularly some high value applications (such as hip joint or tooth, or some airplane components) have the parts using this technology to print.3D prints the same with laser formation technology, have employed layering processing, superposition molding to complete 3D physical print.The print procedure of each layer is divided into two steps, first sprays one layer of special glue in the region needing molding, and glue droplet itself is only small, and not easily spreads.Followed by spraying one layer of uniform powder, powder runs into glue and can cohere by rapid solidification, and the region without glue still keeps loose condition (of surface).So one layer of powder of one layer of glue alternately under, physical model will be " printed " molding, as long as clearing away loose powder " plane " after printing to go out model, and residual powder also reusable edible.
3D printer and maximum " ink " being distinctive in that it uses of conventional printer are out and out raw materials.Fusing after these raw materials are heated, after spraying from the printhead shower nozzle of 3D printer, cooling is solid-state, and the process of whole printing is exactly raw material the success cooling on model that shower nozzle constantly sprays liquid according to program, and the solid finally giving 3D is in kind.
CN104972655A discloses a kind of nozzle structure for 3D printing, belongs to 3D printing technique field, and including mounting seat, vertically arranged nozzle body, the hot jacket that adds being set in outside nozzle body, nozzle body stretches out in and adds hot jacket；The outer surface of nozzle body and the inner surface adding hot jacket are provided with the screw thread being mutually matched；The end face adding hot jacket offers the heating blind hole that circumference is uniform, is provided with heating element heater in heating blind hole；Adding hot jacket periphery and be covered with box set, the inwall of box set is provided with heat-insulation layer；Nozzle body and box set are respectively positioned on the lower section of mounting seat, and all removably connect with mounting seat；The both sides of mounting seat are provided with illuminating lamp.CN104972662A discloses a kind of anticlogging 3D printer head structure, including discharge barrel and housing；The periphery of described discharge barrel is provided with heat-conducting layer, and heat-conducting layer is cased with some heating rings, and heating ring is arranged in housing；Described discharge barrel one end is fixing with discharge head to be connected, and the other end is fixing with feed head to be connected；Described each heating ring is enclosed within the periphery of discharge barrel successively side by side, and is connected with electric cabinet respectively through circuit；Being provided with rotating shaft in described discharge barrel, rotating shaft is connected through discharge barrel side with motor, and rotating shaft is set to stirring section and feeding section successively along motor to shaft end direction；The stirring section of described rotating shaft is multiple blade, and its feeding section is screw thread.
But, if adopt the manufacture that 3D printing technique carries out elastomeric material, after the fusing of the elastomeric material adopted, its mobile performance is poor, causes that printing effect is not good；And after the temperature of elastomeric material reduces, can solidify within the very short time, it is easier to make shower nozzle place block.It addition, after shower nozzle does retracting motion, reside in the procephalic rubber of spray and easily solidify, cause follow-up exist when carrying out extruded rubber again hinder.
Summary of the invention
Problem solved by the invention is: adopt 3D printing technique to manufacture in rubber object process, the problem that after elastomeric material heating mobility is bad and elastomeric material easily blocks shower nozzle.
A kind of 3D printer head for manufacturing elastomeric material, include substrate, portion is provided with charge pipe in a substrate, the main body of charge pipe is positioned at the lower section of substrate, charge pipe bottom is nozzle, arranged outside thermal component on the top of charge pipe, lower outer at charge pipe is heater block, the outer wall of nozzle is made up of multiple structure, internal layer is heat-conducting layer, heat-conducting layer contacts fixing with the elastic heat preserving layer outside it, is outer wall in the outside of elastic heat preserving layer, and the top of elastic heat preserving layer is provided with pressure drive mechanism.
The shape of the interior tube chamber of nozzle is inverted cone.
It is provided with thermal insulation layer between the thermal component and heater block of the outside of charge pipe.
Described thermal component is air-cooled radiator, water-filled radiator or fin.
The material that described elastic heat preserving layer adopts is silicone elastomer material.
Beneficial effect
This 3D printer shower nozzle can be efficiently used for 3D printing technique and manufacture in elastomeric material, particularly air core tyre process, is not easy blocking shower nozzle after elastomeric material heating.
Accompanying drawing explanation
Fig. 1 is 3D printer nozzle structure provided by the invention.
Fig. 2 is the partial enlarged drawing of the latter half nozzle segment in Fig. 1.
Wherein, 1, substrate；2, charge pipe；3, thermal component；4, thermal insulation layer；5, heater block；6, nozzle；7, heat-conducting layer；8, elastic heat preserving layer；9, outer wall；10, pressure drive mechanism.
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish.The embodiment described below with reference to accompanying drawing is illustrative of, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.It should be understood that it can be joined directly together with other elements or be indirectly connected to other elements, and is inserted with element between them when an element was mentioned with another element " connection ".Unless there are clearly contrary explanation, otherwise term " including " and " having " are interpreted as stating and comprise listed element, and non-excluded arbitrarily other elements.
Embodiment 1
The structure of 3D printing head provided by the invention is as shown in fig. 1, this nozzle structure mainly includes substrate 1, the effect of substrate 1 be by shower nozzle with its above three-dimensional motion mechanism be connected to a fixed, charge pipe 2 it is provided with in the middle part of substrate 1, charge pipe 2 bottom is nozzle 6, discharges from nozzle 6 for the elastomeric material after being added thereto to rubber master batch and making fusing；In the outside on the top of charge pipe 2, being thermal component 3, for ensureing that the temperature of rubber master batch is identical with the external world, make master batch normally move wherein, thermal component 3 can adopt the concrete structures such as air-cooled, water-cooled or fin, it does not have is particularly limited to.
In the lower section of thermal component 3, it it is thermal insulation layer 4；Being heater block 5 in the outside of the charge pipe 2 of the lower section of thermal insulation layer 4, the effect of heater block 5 is that the temperature making rubber master batch improves, and then melts and may finally remove from nozzle 6.The effect of thermal insulation layer 4 is to prevent the temperature of charge pipe 2 bottom to be passed up to top, to prevent the cooling after the rubber grain over hot melting in top, and causes the blocking of top charge pipe 2.
The partial enlarged drawing at nozzle 6 place is as shown in Figure 2, shape such as the shape of conventional inverted cone at the interior tube chamber of nozzle 6, upper wider, bottom tapers into, and the outer wall of nozzle 6 is made up of multiple structure, and internal layer is heat-conducting layer 7, fixing connection it is formed without between heat-conducting layer 7 with charge pipe 2, heat-conducting layer 7 contacts fixing with the elastic heat preserving layer 8 outside it, is outer wall 9 in the outside of elastic heat preserving layer 8, the top of elastic heat preserving layer 8 is provided with pressure drive mechanism 10.Owing to rubber master batch material is melted, prints by needs, and elastomeric material is different from common polymer, easily becomes plastic body after its cooling, and when printer head reclaims motion, rubber master batch easily cools down at nozzle place, plug nozzle.And when have employed above-mentioned structure, when printer head reclaims motion, start pressure drive mechanism 10 simultaneously, it is transmitted to elastic heat preserving layer 8 to pressure, and elastic heat preserving layer 8 deforms upon after being under pressure, heat-conducting layer 7 is internally moved, and then the rubber master batch at nozzle 6 place can be made to shrink, return to charge pipe 2 place directly contacted with heater block 5, it is to avoid the spray nozzle clogging that its cooled and solidified causes.That is: make use of the insulation of elastic heat preserving layer 8, elastic double grading, it is achieved that the insulation of the elastomeric material at nozzle 6 place keeps and reclaims motion so that it is be not easily blocked nozzle 6.Wherein, pressure drive mechanism 10 is not particularly limited, as long as can pressurize to elastic heat preserving layer 8, for instance with the pressure rod of electromagnetic controller, piston etc..
Additionally, the material of elastic heat preserving layer 8 is not particularly limited, as long as can have certain insulation, elasticity, heat resistant performance be namely applicable to the purpose of the present invention, can be thermoplastic elastic series with enumerating, for instance phenylethylene (SBS, SIS, SEBS, SEPS), olefines (TP0, TPV), diene class (TPB, TPI), polyvinyl chloride-base (TPVC, TCPE), urethane class (TPU), esters (TPEE), amide-type (TPAE), Organic fluoride class (TPF), silicone based and vinyl etc..
Below the elastic heat preserving material adopted is illustrated:
Example 1: in parts by weight, by the polydimethylsiloxane 40 parts of vinyidimethylsiloxy groups end-blocking, ethylene propylene diene rubber 10 parts, precipitated silica 8 parts, silicon nitride 4 parts, carborundum 2 parts, calcium carbonate 5 parts, 3 parts of mix homogeneously of zinc oxide, add in kneader, low whipping speed is after stirring under 455 revs/min, sequentially pass through banbury, twin-screw mixer, last by single screw extrusion machine extruding pelletization, pelletizing mode adopts tie rod water-cooled or water ring pelletizing, to obtain final product.Banburying temperature is 165 DEG C, and twin screw temperature is arranged: double-cone feeding section 160 DEG C, 170 DEG C, compression section, homogenizing zone 155 DEG C, head temperature 160 DEG C.
Example 2: in parts by weight, the polydimethylsiloxane 40 parts that vinyidimethylsiloxy groups is terminated, hydroxy-end capped poly-methyl-(3,3,3-trifluoro propyl) siloxanes 8 parts, ethylene propylene diene rubber 10 parts, precipitated silica 8 parts, silicon nitride 4 parts, carborundum 2 parts, calcium carbonate 5 parts, 3 parts of mix homogeneously of zinc oxide, add in kneader, low whipping speed is after stirring under 455 revs/min, sequentially pass through banbury, twin-screw mixer, last by single screw extrusion machine extruding pelletization, pelletizing mode adopts tie rod water-cooled or water ring pelletizing, to obtain final product.Banburying temperature is 165 DEG C, and twin screw temperature is arranged: double-cone feeding section 160 DEG C, 170 DEG C, compression section, homogenizing zone 155 DEG C, head temperature 160 DEG C.
The hot strength 12.3Mpa of the elastomer of above example 1, elongation at break 240%, at 180 DEG C after aging 170 hours, hot strength retention rate 93%, reserved elongation at break 85%.The hot strength 13.5Mpa of the elastomer of above example 2, elongation at break 260%, at 180 DEG C after aging 170 hours, hot strength retention rate 97%, reserved elongation at break 94%.
Visible, adopt the polysiloxane-based insulation elastic material can the elastic heat preserving layer 8 suitable in the present invention preferably.
Claims (5)
1. the 3D printer head being used for manufacturing elastomeric material, include substrate (1), substrate (1) middle part is provided with charge pipe (2), the main body of charge pipe (2) is positioned at the lower section of substrate (1), charge pipe (2) bottom is nozzle (6), arranged outside thermal component (3) on the top of charge pipe (2), lower outer at charge pipe (2) is heater block (5), it is characterized in that: the outer wall of nozzle (6) is made up of multiple structure, internal layer is heat-conducting layer (7), heat-conducting layer (7) contacts fixing with the elastic heat preserving layer (8) outside it, it is outer wall (9) in the outside of elastic heat preserving layer (8), the top of elastic heat preserving layer (8) is provided with pressure drive mechanism (10).
2. the 3D printer head for manufacturing elastomeric material according to claim 1, it is characterised in that: the shape of the interior tube chamber of nozzle (6) is inverted cone.
3. the 3D printer head for manufacturing elastomeric material according to claim 1, it is characterised in that: between the thermal component (3) and heater block (5) of the outside of charge pipe (2), it is provided with thermal insulation layer (4).
4. the 3D printer head for manufacturing elastomeric material according to claim 1, it is characterised in that: described thermal component (3) is air-cooled radiator, water-filled radiator or fin.
5. the 3D printer head for manufacturing elastomeric material according to claim 1, it is characterised in that: the material that described elastic heat preserving layer (8) adopts is silicone elastomer material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620174208.XU CN205395190U (en) | 2016-03-07 | 2016-03-07 | A 3D print head for making rubber materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620174208.XU CN205395190U (en) | 2016-03-07 | 2016-03-07 | A 3D print head for making rubber materials |
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| CN205395190U true CN205395190U (en) | 2016-07-27 |
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| CN201620174208.XU Active CN205395190U (en) | 2016-03-07 | 2016-03-07 | A 3D print head for making rubber materials |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105584052A (en) * | 2016-03-07 | 2016-05-18 | 江苏江昕轮胎有限公司 | 3D printing machine spraying nozzle for manufacturing rubber materials |
| WO2021093604A1 (en) * | 2019-11-12 | 2021-05-20 | 深圳职业技术学院 | 3d printer nozzle and printer having same |
-
2016
- 2016-03-07 CN CN201620174208.XU patent/CN205395190U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105584052A (en) * | 2016-03-07 | 2016-05-18 | 江苏江昕轮胎有限公司 | 3D printing machine spraying nozzle for manufacturing rubber materials |
| WO2021093604A1 (en) * | 2019-11-12 | 2021-05-20 | 深圳职业技术学院 | 3d printer nozzle and printer having same |
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Address after: 221300 No. 1, Jiangxin Road, Binhe Industrial Park, Yitang Town, Pizhou City, Xuzhou City, Jiangsu Province Patentee after: Jiangsu Jiangxin Technology Co.,Ltd. Address before: 221300 No. 1, Jiangxin Road, Binhe Industrial Park, Yitang Town, Pizhou City, Xuzhou City, Jiangsu Province Patentee before: JIANGSU RISINGSUN TYRE Co.,Ltd. |