CN214645900U - Beat printer head and 3D printer - Google Patents

Abstract

The utility model provides a printing head, it includes the first locating part that sets gradually, the wheel rotates, the second locating part, a radiator, heater and shower nozzle, the wheel rotates and includes first wheel and the second wheel that rotates with first wheel interval setting in order to form extrusion channel, first locating part and second locating part insert extrusion channel respectively, first locating part and second locating part all run through be equipped with extrusion channel's spacing hole, the spacing hole of second locating part, radiator, heater and shower nozzle communicate in proper order, wherein, in the second direction, the aperture in spacing hole is not less than the interval between first wheel and the second wheel; the first direction is perpendicular to the second direction; at least one of the first rotating wheel and the second rotating wheel is a driving wheel. The utility model also provides a 3D printer. The utility model provides a beat printer head and 3D printer and can make soft wire rod be difficult for curling in extrusion process to can reduce the end cap risk and improve printing quality.

Description

Beat printer head and 3D printer

[ technical field ] A method for producing a semiconductor device

The utility model relates to a 3D prints the field, concretely relates to beat printer head and 3D printer, should beat printer head and be used for the linear material intensification to melt back extrusion moulding.

[ background of the invention ]

The insole is used as a direct pressure bearing part for the contact of the foot and the shoe body, and is undoubtedly the part of a pair of shoes which most influences the experience feeling of the human body. With the development of 3D printing technology, 3D that 3D printer made prints shoe-pad in order can perfectly match the foot type, do not need the customization mould, customization advantage such as with low costs receives consumer's favor more and more.

The printing head structure of the 3D printer is used for heating and melting linear materials and then extruding and molding the linear materials, the printing head structure comprises a rotating wheel with an extrusion channel, a radiator, a heater and a nozzle, and the extrusion channel, the radiator, the heater and the nozzle are communicated in sequence. However, in the related art, the linear material is a soft wire, and the soft wire is prone to curling during extrusion, even to a choke plug risk.

Therefore, there is a need for improvements to existing printheads that avoid the above-mentioned disadvantages.

[ Utility model ] content

An object of the utility model is to provide a beat printer head and 3D printer, should beat printer head and can make soft wire rod be difficult for curling in extrusion process to can reduce the end cap risk and improve printing quality.

The technical scheme of the utility model as follows:

a printing head is used for melting and extruding linear materials, and comprises a first limiting part, a rotating wheel, a second limiting part, a radiator, a heater and a nozzle which are sequentially arranged along a first direction, the rotating wheels comprise a first rotating wheel and a second rotating wheel which is arranged at an interval with the first rotating wheel along a second direction to form an extrusion channel, the first limiting piece and the second limiting piece are respectively inserted into two opposite ends of the extrusion channel along a first direction, the first limiting piece and the second limiting piece are both provided with limiting holes communicated with the extrusion channel in a penetrating way along the first direction, the limiting hole of the second limiting piece, the radiator, the heater and the spray head are communicated in sequence, in the second direction, the aperture of the limiting hole is not smaller than the distance between the first rotating wheel and the second rotating wheel; the first direction is a traveling direction of the linear material and is perpendicular to the second direction; at least one of the first rotating wheel and the second rotating wheel is a driving wheel.

Preferably, the driving wheel is a gear.

Preferably, the heat sink includes a main body portion and a heat dissipation fin disposed on an outer periphery of the main body portion, the main body portion is provided with a passageway in a penetrating manner, and the passageway communicates with the heater and the limiting hole of the second limiting member.

Preferably, the print head further comprises a first fan facing the heat sink in the air outlet direction.

Preferably, the printing head further comprises a second fan with an air outlet direction opposite to the spray head.

Preferably, the heater is an electric heater.

The utility model discloses a another technical scheme as follows: a 3D printer comprising a printhead as claimed in any one of the preceding claims.

Compared with the prior art, the utility model provides a beat printer head and 3D printer's beneficial effect lies in: the first limiting part and the second limiting part with limiting holes are respectively inserted into the two opposite ends of the extrusion channel in the first direction, so that the first limiting part and the second limiting part can be in butt joint with the extrusion channel, the soft wire is not easy to curl in the extrusion process, the risk of a plug can be reduced, and the printing quality can be improved.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of a printing head according to the present invention.

[ detailed description ] embodiments

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the print head is used for melting and extruding a linear material, wherein the linear material is a soft material, but the linear material may also be a hard material, i.e. the print head is also suitable for melting and extruding a hard linear material.

The printing head comprises a first limiting part 1, a rotating wheel 2, a second limiting part 3, a radiator 4, a heater 5 and a nozzle 6 which are sequentially arranged along a first direction X. The first direction X is a traveling direction of the linear material, and when the print head works, the linear material sequentially passes through the first limiting part 1, the rotating wheel 2, the second limiting part 3, the heat sink 4, the heater 5 and the nozzle 6.

The rotary wheel 2 includes a first rotary wheel 21 and a second rotary wheel 23 spaced apart from the first rotary wheel 21 in the second direction Y to form an extrusion channel 2A. Wherein the first direction X is perpendicular to the second direction Y, and at least one of the first rotating wheel 21 and the second rotating wheel 23 is a driving wheel. Specifically, when one of the first rotating wheel 21 and the second rotating wheel 23 is a driving wheel and the other is a driven wheel, the driving wheel rotates to drive the linear material to travel in the extrusion channel 2A along the first direction X, and simultaneously, the driven wheel and the driving wheel rotate at the same linear speed and rotate in opposite directions; when the first rotating wheel 21 and the second rotating wheel 23 are both driving wheels, the two driving wheels rotate at the same linear speed and in opposite rotating directions, so as to drive the linear material to advance in the extrusion channel 2A along the first direction X. It will be appreciated that the drive wheels are driven by a motor.

In order to increase the friction between the driving wheel and the linear material, in this embodiment, the driving wheel is preferably a gear.

The first limiting part 1 and the second limiting part 3 are respectively inserted into two opposite ends of the extrusion channel 2A along a first direction X, the first limiting part 1 and the second limiting part 3 are respectively provided with a limiting hole 7 communicated with the extrusion channel 2A along the first direction X in a penetrating manner, and the limiting hole 7, the radiator 4, the heater 5 and the spray head 6 of the second limiting part 3 are sequentially communicated. In the second direction Y, the diameter of the limiting hole 7 is not smaller than the distance between the first rotating wheel 21 and the second rotating wheel 23.

The radiator 4 is provided in the heater 5 to prevent the heater 5 from transferring heat to a position before a heating position to melt the wire by heat, thereby causing a line jam.

In this embodiment, the heat sink 4 includes a main body portion 41 and heat dissipation fins 43 provided on the outer periphery of the main body portion 41, the main body portion 41 is provided with a passage 411 in a penetrating manner, and the passage 411 communicates the heater 5 and the limiting hole 7 of the second limiting member 3.

In this embodiment, the print head further includes a first fan 8 facing the heat sink 4 in the air outlet direction. The first fan 8 is arranged to accelerate the heat dissipation of the heat sink 4, so that the temperature of the cooling area can be guaranteed to be normal.

In this embodiment, the print head further includes a second fan 9 facing the nozzle 6 in the air outlet direction. The second fan 9 is arranged to facilitate the rapid cooling and shaping of the extruded object.

In the present embodiment, the heater 5 is an electric heater.

The utility model also provides a 3D printer, the 3D printer include the aforesaid beat printer head.

Compared with the prior art, the utility model provides a beat printer head and 3D printer's beneficial effect lies in:

the first limiting part and the second limiting part with limiting holes are respectively inserted into the two opposite ends of the extrusion channel in the first direction, so that the first limiting part and the second limiting part can be in butt joint with the extrusion channel, the soft wire is not easy to curl in the extrusion process, the risk of a plug can be reduced, and the printing quality can be improved.

The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims (7)

1. A printhead for melting and extruding a linear material, the printhead comprising: the printing head comprises a first limiting part, a rotating wheel, a second limiting part, a radiator, a heater and a sprayer which are sequentially arranged along a first direction, the rotating wheel comprises a first rotating wheel and a second rotating wheel which is arranged at intervals with the first rotating wheel along a second direction to form an extrusion channel, the first limiting part and the second limiting part are respectively inserted into two opposite ends of the extrusion channel along the first direction, limiting holes communicated with the extrusion channel are respectively arranged in the first direction of the first limiting part and the second limiting part in a penetrating manner, the limiting holes of the second limiting part, the radiator, the heater and the sprayer are sequentially communicated, and the aperture of each limiting hole is not smaller than the distance between the first rotating wheel and the second rotating wheel in the second direction; the first direction is a traveling direction of the linear material and is perpendicular to the second direction; at least one of the first rotating wheel and the second rotating wheel is a driving wheel.

2. The printhead of claim 1, wherein: the driving wheel is a gear.

3. The printhead of claim 1, wherein: the radiator comprises a main body part and radiating fins arranged on the periphery of the main body part, the main body part penetrates through a passage, and the passage is communicated with the heater and the limiting holes of the second limiting part.

4. A printhead as in claim 3, wherein: the printing head further comprises a first fan, wherein the air outlet direction of the first fan is opposite to the radiator.

5. The printhead of claim 1, wherein: the printing head further comprises a second fan, wherein the air outlet direction of the second fan is opposite to the spray head.

6. The printhead of claim 1, wherein: the heater is an electric heater.

7. A3D printer comprising a printhead according to any one of claims 1 to 6.

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