US20180326743A1 - Print head with quick release mechanism - Google Patents
Print head with quick release mechanism Download PDFInfo
- Publication number
- US20180326743A1 US20180326743A1 US15/630,671 US201715630671A US2018326743A1 US 20180326743 A1 US20180326743 A1 US 20180326743A1 US 201715630671 A US201715630671 A US 201715630671A US 2018326743 A1 US2018326743 A1 US 2018326743A1
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- US
- United States
- Prior art keywords
- tube
- nozzle
- print head
- heating block
- quick release
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/335—Structure of thermal heads
- B41J2/33575—Processes for assembling process heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/209—Heads; Nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/325—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads by selective transfer of ink from ink carrier, e.g. from ink ribbon or sheet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/335—Structure of thermal heads
- B41J2/3354—Structure of thermal heads characterised by geometry
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/35—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads providing current or voltage to the thermal head
- B41J2/355—Control circuits for heating-element selection
- B41J2/3551—Block driving
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J21/00—Column, tabular or like printing arrangements; Means for centralising short lines
- B41J21/04—Mechanisms for setting or restoring tabulation stops
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/1714—Conditioning of the outside of ink supply systems, e.g. inkjet collector cleaning, ink mist removal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/01—Embodiments of or processes related to ink-jet heads
- B41J2202/15—Moving nozzle or nozzle plate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/01—Embodiments of or processes related to ink-jet heads
- B41J2202/19—Assembling head units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/30—Embodiments of or processes related to thermal heads
- B41J2202/31—Thermal printer with head or platen movable
Definitions
- the present invention generally relates to a print head, and more particular, to a print head with quick release mechanism.
- FIG. 1 it depicts a first embodiment of a traditional print head.
- a heat sink a 1 is sleeved at an end of a throat tube a 2 ; a nozzle a 3 and a heating block a 4 are integrally formed and assembled at another end of the throat tube a 2 .
- FIG. 2 it depicts a second embodiment of a traditional print head.
- a heat sink b 1 is sleeved at an end of a throat tube b 2 ; a nozzle b 3 is assembled at another end of the throat tube b 2 , and a heating block b 4 is sleeved on the nozzle b 3 .
- junctions of assembly of the above traditional print heads are located between the nozzle a 3 , b 3 and the throat tube a 2 , b 2 , and cooling print materials are solidified and filled in the nozzle a 3 , b 4 so that clogging which needs to be eliminated is often occurred at the intersection of the nozzle a 3 , b 3 and the throat tube 2 a , b 2 . Therefore, when the above traditional print head needs to be replaced or repaired, solidified printed material must be melt by heating the nozzle a 3 , b 3 for excluding clogging of nozzle or replacing the nozzle. As a result, the nozzle is not easy to be disassembled, and the disassembly after heating is more dangerous for users.
- the Inventor proposes the present invention based on his expert knowledge and elaborate researches in order to solve the problems of prior art.
- an object of the present invention is to provide a print head with quick release mechanism, in which one end of the nozzle tube has extended with an extension tube exposed to the heating block so that the nozzle tube disposed near the heating block cannot be disassembled.
- the present invention provides a print head including a heating block, a nozzle tube and a connecting tube.
- the nozzle tube is inserted in the heating block.
- One end of the nozzle tube has a nozzle and the other end extended with an extension tube exposed to the heating block.
- the connecting tube is connected with the extension tube.
- the nozzle tube is made of stainless steel (SUS303) so that the nozzle tube can print materials at high temperature (higher than 300 degrees) and metal materials.
- FIG. 1 is a cross sectional schematic view of a first embodiment of a print head of prior art
- FIG. 2 is a cross sectional schematic view of a second embodiment of a print head of prior art
- FIG. 3 is a perspective assembly schematic view of a first embodiment of a print head of prior art
- FIG. 4 is a perspective explosion schematic view of a first embodiment of a print head of the present invention.
- FIG. 5 is a cross sectional schematic view of a first embodiment of a nozzle tube and a connecting tube of the present invention
- FIG. 6 is a cross sectional schematic view of a first embodiment of a print head of the present invention.
- FIG. 7 is a cross sectional schematic view of a second embodiment of a nozzle tube and a connecting tube of the present invention.
- FIG. 8 is a cross sectional schematic view of a second embodiment of a print head of the present invention.
- the print head 10 mainly includes a heating block 1 , a nozzle tube 2 and a connecting tube 3 .
- the print head 10 is applied in a printer (not shown).
- the printer has a material tube 100 , and the material tube 100 is used to provide materials for printing.
- the heating block 1 itself can be heated, and the heating block 1 approximately has a shape of a bushing and has a plurality of first internal threads 11 on an inner periphery.
- the nozzle tube 2 is inserted in the heating block 1 .
- One end of the nozzle tube 2 has a nozzle 21 and the other end has extended with an extension tube 22 exposed to the heating block 1 .
- the heating block 1 sleeves on an outer circumference of the extension tube 22 , and an outer diameter w 2 of the extension tube 22 is smaller than an outer diameter w 1 of the nozzle tube 2 and an outer diameter w 3 of the connecting tube 3 so that a spacing s will be formed between the heating block 1 and the extension tube 22 .
- the heating block 1 is used for heating of the nozzle tube 2 and the nozzle 21 for thermal conduction, and the spacing s is used to delay the heat transfer to the extension tube 22 .
- An outer peripheral surface of the nozzle tube 2 has first external threads 23 , and a protruding annular block 24 is provided at an outer peripheral edge of an intersection of the nozzle tube 2 and the nozzle 21 .
- the first internal threads 11 and the first external threads 23 are screwed together for the nozzle tube 2 will be locked inside the heating block 1 , and the protruding annular block 24 is blocked by the heating block 1 .
- nozzles on markets or nozzles of prior art are mostly copper nozzle.
- the temperature of printing of copper nozzles is about 200 degrees that leads to the nozzles cannot print materials at the temperature higher than 300 degrees (metal materials).
- the nozzle tube 2 of the present embodiment is made of stainless steel (SUS303); thus the nozzle tube 2 can print metal materials at high temperatures (higher than 300 degrees).
- the connecting tube 3 is connected with the extension tube 22 .
- an outer periphery of the connecting tube 3 has second outer threads 31
- the connecting tube 3 has an annular portion 32 neighboring an outer periphery of an end of the extension tube 22 .
- the connecting tube 3 and the extension tube 22 are formed, but not limited to, as an integral part.
- the print head 10 further includes a heat sink set 4 , and the heat sink set 4 sleeves on the connecting tube 3 .
- an outer periphery of the heat sink set 4 has extended with a plurality of heat dissipating fins (not shown) for enhancing the heat dissipation of the connecting tube 3 .
- An inner periphery of the heat sink set 4 has second internal threads 41 ; the second outer threads 31 and the second internal threads 41 are screwed together so that the heat sink set 4 is locked at an outer of the connection pipe 3 , and the annular portion 32 is blocked by the heat sink set 4 .
- a helical direction of the first external threads 23 is opposite to a helical direction of the second external threads 31 .
- FIG. 3 to FIG. 6 an assembly and operating states of the print head 10 of the present invention, wherein the nozzle tube 2 is inserted in the heating block 1 .
- One end of the nozzle tube 2 has a nozzle 21 and the other end has extended with an extension tube 22 exposed to the heating block 1 .
- the connecting tube 3 is connected with the extension tube 22 .
- the nozzle tube 2 has integrally extended with an extension tube 22 exposed to the heating block 1 so that the nozzle tube 2 disposed near the heating block 1 cannot be disassembled.
- a process of replacing components by heating a nozzle at high temperature can be bypassed, and advantages of quick disassembly and easy maintenance of the print head of the present invention will be achieved.
- the connecting tube 3 , the extension tube 22 and the nozzle 21 are integrally formed as in integral part.
- the process of heating the nozzle 2 through the heating block 1 is bypassed due to the nozzle cannot be departed, and thus the heating block 1 and the nozzle tube 2 are disassembled through threads to replace the whole nozzle tube 2 for facilitating replacement by users themselves and reducing the risk of burns.
- the outer diameter w 2 of the extension tube 22 is smaller than the outer diameter w 1 of the nozzle tube 2 and the outer diameter w 3 of the connecting tube 3 for the heat of the heating block 1 can be accumulated as much as possible at the nozzle 21 of the end of the nozzle tube 21 .
- printing materials are uniformly heated and melted only at the nozzle 21 to prevent the printing materials melted and clogged at the extension pipe 22 or connecting tube 3 , and thus the print head 10 will not be clogged easily.
- FIG. 7 and FIG. 8 depict a second embodiment of the print head 10 of the present invention.
- the second embodiment is substantially the same as the first embodiment.
- the second embodiment differs from the first embodiment in that the connecting tube 3 and the extending tube 22 are not integrally formed.
- One end of the extension tube 22 and the nozzle 22 are integrally formed.
- An outer periphery of the other end of the extension tube 22 has third external threads 221
- an inner periphery of the connecting tube 3 has third internal threads 33 , wherein the third external threads 221 and the third external threads 33 are screwed together for combining the connecting tube 3 and the extension tube 22 instead of integrally formed.
- the nozzle tube 2 disposed near the heating block 1 cannot be disassembled to achieve the same function and effects as the first embodiment; however, the connecting tube 3 and the extension tube 22 can be loosen by unscrewing, and the nozzle tube 2 can be departed from the connecting tube 3 as demands.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Ink Jet (AREA)
- Nozzles (AREA)
Abstract
Description
- The present invention generally relates to a print head, and more particular, to a print head with quick release mechanism.
- In a traditional three-dimensional printing machine, print materials are usually melted by a print head and then stacked on a platform, wherein a traditional print head is usually composed of a nozzle, a heating block, a throat tube, and a heat sink etc. As shown in
FIG. 1 , it depicts a first embodiment of a traditional print head. A heat sink a1 is sleeved at an end of a throat tube a2; a nozzle a3 and a heating block a4 are integrally formed and assembled at another end of the throat tube a2. As shown inFIG. 2 , it depicts a second embodiment of a traditional print head. A heat sink b1 is sleeved at an end of a throat tube b2; a nozzle b3 is assembled at another end of the throat tube b2, and a heating block b4 is sleeved on the nozzle b3. - However, as junctions of assembly of the above traditional print heads are located between the nozzle a3, b3 and the throat tube a2, b2, and cooling print materials are solidified and filled in the nozzle a3, b4 so that clogging which needs to be eliminated is often occurred at the intersection of the nozzle a3, b3 and the throat tube 2 a, b2. Therefore, when the above traditional print head needs to be replaced or repaired, solidified printed material must be melt by heating the nozzle a3, b3 for excluding clogging of nozzle or replacing the nozzle. As a result, the nozzle is not easy to be disassembled, and the disassembly after heating is more dangerous for users.
- In view of the above drawbacks, the Inventor proposes the present invention based on his expert knowledge and elaborate researches in order to solve the problems of prior art.
- Accordingly, an object of the present invention is to provide a print head with quick release mechanism, in which one end of the nozzle tube has extended with an extension tube exposed to the heating block so that the nozzle tube disposed near the heating block cannot be disassembled. Thus a process of replacing components by heating a nozzle at high temperature can be bypassed, and advantages of quick disassembly and easy maintenance of the print head of the present invention will be achieved.
- In order to achieve the object mentioned above, the present invention provides a print head including a heating block, a nozzle tube and a connecting tube. The nozzle tube is inserted in the heating block. One end of the nozzle tube has a nozzle and the other end extended with an extension tube exposed to the heating block. The connecting tube is connected with the extension tube.
- In the above, the nozzle tube is made of stainless steel (SUS303) so that the nozzle tube can print materials at high temperature (higher than 300 degrees) and metal materials.
- The features of the invention believed to be novel are set forth with particularity in the appended claims. The invention itself, however, may be best understood by reference to the following detailed description of the invention, which describes a number of exemplary embodiments of the invention, taken in conjunction with the accompanying drawings, in which:
-
FIG. 1 is a cross sectional schematic view of a first embodiment of a print head of prior art; -
FIG. 2 is a cross sectional schematic view of a second embodiment of a print head of prior art; -
FIG. 3 is a perspective assembly schematic view of a first embodiment of a print head of prior art; -
FIG. 4 is a perspective explosion schematic view of a first embodiment of a print head of the present invention; -
FIG. 5 is a cross sectional schematic view of a first embodiment of a nozzle tube and a connecting tube of the present invention; -
FIG. 6 is a cross sectional schematic view of a first embodiment of a print head of the present invention; -
FIG. 7 is a cross sectional schematic view of a second embodiment of a nozzle tube and a connecting tube of the present invention; -
FIG. 8 is a cross sectional schematic view of a second embodiment of a print head of the present invention. - In cooperation with attached drawings, the technical contents and detailed description of the invention are described thereinafter according to a number of preferable embodiments, being not used to limit its executing scope. Any equivalent variation and modification made according to appended claims is all covered by the claims claimed by the present invention.
- Please refer to
FIG. 3 toFIG. 6 , the present invention provides a first embodiment of a print head with a quick release mechanism. Theprint head 10 mainly includes aheating block 1, anozzle tube 2 and a connectingtube 3. - As shown in
FIG. 6 , theprint head 10 is applied in a printer (not shown). The printer has amaterial tube 100, and thematerial tube 100 is used to provide materials for printing. - As shown in
FIG. 3, 4 , andFIG. 6 , theheating block 1 itself can be heated, and theheating block 1 approximately has a shape of a bushing and has a plurality of firstinternal threads 11 on an inner periphery. - As shown in
FIG. 3 toFIG. 6 , thenozzle tube 2 is inserted in theheating block 1. One end of thenozzle tube 2 has anozzle 21 and the other end has extended with anextension tube 22 exposed to theheating block 1. Theheating block 1 sleeves on an outer circumference of theextension tube 22, and an outer diameter w2 of theextension tube 22 is smaller than an outer diameter w1 of thenozzle tube 2 and an outer diameter w3 of theconnecting tube 3 so that a spacing s will be formed between theheating block 1 and theextension tube 22. Theheating block 1 is used for heating of thenozzle tube 2 and thenozzle 21 for thermal conduction, and the spacing s is used to delay the heat transfer to theextension tube 22. - More details are descripted as follows. An outer peripheral surface of the
nozzle tube 2 has firstexternal threads 23, and a protrudingannular block 24 is provided at an outer peripheral edge of an intersection of thenozzle tube 2 and thenozzle 21. The firstinternal threads 11 and the firstexternal threads 23 are screwed together for thenozzle tube 2 will be locked inside theheating block 1, and the protrudingannular block 24 is blocked by theheating block 1. - Besides, nozzles on markets or nozzles of prior art are mostly copper nozzle. The temperature of printing of copper nozzles is about 200 degrees that leads to the nozzles cannot print materials at the temperature higher than 300 degrees (metal materials). However, the
nozzle tube 2 of the present embodiment is made of stainless steel (SUS303); thus thenozzle tube 2 can print metal materials at high temperatures (higher than 300 degrees). - Please refer to
FIG. 3 toFIG. 6 , the connectingtube 3 is connected with theextension tube 22. Besides, an outer periphery of the connectingtube 3 has secondouter threads 31, and the connectingtube 3 has anannular portion 32 neighboring an outer periphery of an end of theextension tube 22. In the present embodiment, the connectingtube 3 and theextension tube 22 are formed, but not limited to, as an integral part. As shown inFIG. 3, 4 andFIG. 6 , theprint head 10 further includes a heat sink set 4, and the heat sink set 4 sleeves on the connectingtube 3. Furthermore, an outer periphery of theheat sink set 4 has extended with a plurality of heat dissipating fins (not shown) for enhancing the heat dissipation of the connectingtube 3. - Further description is as follows. An inner periphery of the heat sink set 4 has second
internal threads 41; the secondouter threads 31 and the secondinternal threads 41 are screwed together so that theheat sink set 4 is locked at an outer of theconnection pipe 3, and theannular portion 32 is blocked by theheat sink set 4. - Moreover, a helical direction of the first
external threads 23 is opposite to a helical direction of the secondexternal threads 31. Thus, in an unscrewing process of the heat sink set 4 and the connectingtube 3, theheating block 1 and thenozzle tube 2 will not be loosen but screwed more tightly because the threads has an opposite direction. Similarly, in an unscrewing process of theheating block 1 and thenozzle tube 2, the heat sink set 4 and the connectingtube 3 will not be loosen but screwed more tightly. - With referring to
FIG. 3 toFIG. 6 , an assembly and operating states of theprint head 10 of the present invention, wherein thenozzle tube 2 is inserted in theheating block 1. One end of thenozzle tube 2 has anozzle 21 and the other end has extended with anextension tube 22 exposed to theheating block 1. The connectingtube 3 is connected with theextension tube 22. Thereby, thenozzle tube 2 has integrally extended with anextension tube 22 exposed to theheating block 1 so that thenozzle tube 2 disposed near theheating block 1 cannot be disassembled. Thus a process of replacing components by heating a nozzle at high temperature can be bypassed, and advantages of quick disassembly and easy maintenance of the print head of the present invention will be achieved. - In the present embodiment, the connecting
tube 3, theextension tube 22 and thenozzle 21 are integrally formed as in integral part. When clogging of thenozzle 21 cannot be excluded, the process of heating thenozzle 2 through theheating block 1 is bypassed due to the nozzle cannot be departed, and thus theheating block 1 and thenozzle tube 2 are disassembled through threads to replace thewhole nozzle tube 2 for facilitating replacement by users themselves and reducing the risk of burns. - Furthermore, as heat will be transmitted in a direction to large surfaces, the outer diameter w2 of the
extension tube 22 is smaller than the outer diameter w1 of thenozzle tube 2 and the outer diameter w3 of the connectingtube 3 for the heat of theheating block 1 can be accumulated as much as possible at thenozzle 21 of the end of thenozzle tube 21. As a result, printing materials are uniformly heated and melted only at thenozzle 21 to prevent the printing materials melted and clogged at theextension pipe 22 or connectingtube 3, and thus theprint head 10 will not be clogged easily. - Please refer to
FIG. 7 andFIG. 8 , they depict a second embodiment of theprint head 10 of the present invention. The second embodiment is substantially the same as the first embodiment. The second embodiment differs from the first embodiment in that the connectingtube 3 and the extendingtube 22 are not integrally formed. - Further explanation is as follows. One end of the
extension tube 22 and thenozzle 22 are integrally formed. An outer periphery of the other end of theextension tube 22 has thirdexternal threads 221, and an inner periphery of the connectingtube 3 has thirdinternal threads 33, wherein the thirdexternal threads 221 and the thirdexternal threads 33 are screwed together for combining the connectingtube 3 and theextension tube 22 instead of integrally formed. Thereby, thenozzle tube 2 disposed near theheating block 1 cannot be disassembled to achieve the same function and effects as the first embodiment; however, the connectingtube 3 and theextension tube 22 can be loosen by unscrewing, and thenozzle tube 2 can be departed from the connectingtube 3 as demands. - Although the present invention has been described with reference to the preferred embodiment thereof, it will be understood that the invention is not limited to the details thereof. Various substitutions and improvements have been suggested in the foregoing description, and others will occur to those of ordinary skill in the art. Therefore, all such substitutions and improvements are intended to be embraced within the scope of the invention as defined in the appended claims.
Claims (17)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US16/135,905 US10406822B2 (en) | 2017-05-09 | 2018-09-19 | Print head with quick release mechanism |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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CN201710322419.2 | 2017-05-09 | ||
CN201710322419 | 2017-05-09 | ||
CN201710322419.2A CN108859100A (en) | 2017-05-09 | 2017-05-09 | Nozzle structure with quick release mechanism |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US16/135,905 Continuation US10406822B2 (en) | 2017-05-09 | 2018-09-19 | Print head with quick release mechanism |
Publications (2)
Publication Number | Publication Date |
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US10124599B1 US10124599B1 (en) | 2018-11-13 |
US20180326743A1 true US20180326743A1 (en) | 2018-11-15 |
Family
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Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US15/630,671 Active US10124599B1 (en) | 2017-05-09 | 2017-06-22 | Print head with quick release mechanism |
US16/135,905 Expired - Fee Related US10406822B2 (en) | 2017-05-09 | 2018-09-19 | Print head with quick release mechanism |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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US16/135,905 Expired - Fee Related US10406822B2 (en) | 2017-05-09 | 2018-09-19 | Print head with quick release mechanism |
Country Status (4)
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US (2) | US10124599B1 (en) |
EP (1) | EP3401095A1 (en) |
JP (1) | JP6634405B2 (en) |
CN (1) | CN108859100A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10780621B2 (en) * | 2018-06-06 | 2020-09-22 | Arevo, Inc. | Quick-change fused filament fabrication nozzle assembly |
US11045999B2 (en) * | 2019-01-08 | 2021-06-29 | Shanghai Fusion Tech Co., Ltd. | Throat structures for 3D printers, and nozzle apparatus and 3D printers having throat structures |
US20210323231A1 (en) * | 2020-03-27 | 2021-10-21 | Fusion3 Design LLC | Liquifier assembly |
US11167488B2 (en) * | 2018-04-23 | 2021-11-09 | Bond High Performance 3D Technology B.V. | System for additive manufacturing |
US11420386B2 (en) * | 2020-04-16 | 2022-08-23 | Wavepia Co., Ltd. | Nozzle structure applying RF heating device for 3D printer |
Families Citing this family (7)
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CN108859100A (en) * | 2017-05-09 | 2018-11-23 | 三纬国际立体列印科技股份有限公司 | Nozzle structure with quick release mechanism |
JP6511577B1 (en) * | 2018-08-21 | 2019-05-15 | 独立行政法人国立高等専門学校機構 | Molding apparatus and molding method |
EP3838556A1 (en) * | 2019-12-18 | 2021-06-23 | 3DGence Spolka z ograniczona odpwiedzialnoscia | 3d printhead |
IT201900025033A1 (en) * | 2019-12-20 | 2021-06-20 | 3Dgence Sp Z O O | 3D Print Head |
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Family Cites Families (7)
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CN103737935B (en) * | 2014-01-23 | 2016-08-17 | 德清中科金融信息技术研究所 | The printhead nozzle structure of 3D printer |
US10500830B2 (en) | 2014-07-29 | 2019-12-10 | Nscrypt, Inc. | Method and apparatus for 3D fabrication |
US20160236418A1 (en) | 2015-02-17 | 2016-08-18 | Michael Daniel Armani | Error pattern compensation |
CN204658954U (en) | 2015-03-25 | 2015-09-23 | 中山市迪迈打印科技有限公司 | For the shower nozzle of three-dimensional printer |
CN205167573U (en) * | 2015-10-29 | 2016-04-20 | 杭州维彬科技有限公司 | Can dismantle and prevent stopping up 3D printing shower nozzle |
CN205112420U (en) * | 2015-11-21 | 2016-03-30 | 邓旭东 | Shower nozzle for three -dimensional inkjet printer |
CN108859100A (en) * | 2017-05-09 | 2018-11-23 | 三纬国际立体列印科技股份有限公司 | Nozzle structure with quick release mechanism |
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2017
- 2017-05-09 CN CN201710322419.2A patent/CN108859100A/en active Pending
- 2017-06-22 US US15/630,671 patent/US10124599B1/en active Active
- 2017-06-26 JP JP2017123811A patent/JP6634405B2/en not_active Expired - Fee Related
- 2017-06-27 EP EP17178107.3A patent/EP3401095A1/en not_active Withdrawn
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11167488B2 (en) * | 2018-04-23 | 2021-11-09 | Bond High Performance 3D Technology B.V. | System for additive manufacturing |
US10780621B2 (en) * | 2018-06-06 | 2020-09-22 | Arevo, Inc. | Quick-change fused filament fabrication nozzle assembly |
US11045999B2 (en) * | 2019-01-08 | 2021-06-29 | Shanghai Fusion Tech Co., Ltd. | Throat structures for 3D printers, and nozzle apparatus and 3D printers having throat structures |
US20210323231A1 (en) * | 2020-03-27 | 2021-10-21 | Fusion3 Design LLC | Liquifier assembly |
US11420386B2 (en) * | 2020-04-16 | 2022-08-23 | Wavepia Co., Ltd. | Nozzle structure applying RF heating device for 3D printer |
Also Published As
Publication number | Publication date |
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US20190016150A1 (en) | 2019-01-17 |
JP2018187909A (en) | 2018-11-29 |
CN108859100A (en) | 2018-11-23 |
US10124599B1 (en) | 2018-11-13 |
US10406822B2 (en) | 2019-09-10 |
JP6634405B2 (en) | 2020-01-22 |
EP3401095A1 (en) | 2018-11-14 |
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