CN213321737U

CN213321737U - Cooling printing head

Info

Publication number: CN213321737U
Application number: CN202022179560.1U
Authority: CN
Inventors: 李兵
Original assignee: Shenzhen Dinghao Technology Co ltd
Current assignee: Shenzhen Dinghao Technology Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-06-01
Anticipated expiration: 2030-09-29

Abstract

The utility model relates to a beat printer head technical field, specifically be a cooling and beat printer head, including sleeve, installation cavity, beat printer head, heat preservation heat insulation seat, cartridge heater, inlet pipe and air-cooled subassembly, the output of air-cooled subassembly is towards the installation cavity sets up, be provided with the material pipe that leads to in the heat preservation heat insulation seat, the material pipe top butt of leading to the material pipe bottom, be provided with the heating pipe in the cartridge heater, the heating pipe top butt leads to the material pipe bottom; in practical application, cold air generated by the air cooling assembly enters the installation cavity, and is discharged from the exhaust hole after directly contacting with the outer side wall of the printing head in the installation cavity for heat exchange, so that the heat dissipation effect is good, and the printing precision is high; the printing effect is good by additionally arranging the heat-insulating seat between the printing head and the heating sleeve; the utility model discloses the radiating effect is good, and printing precision is high, avoids heating the piece and beats printer head direct contact and produces the heat transfer, and the direction is stable, and convenient to detach prints effectually.

Description

Cooling printing head

Technical Field

The utility model relates to a beat printer head technical field, specifically be a printer head is beaten in cooling.

Background

The 3D printer commonly used in the existing market generally has a long-time printing temperature within 250 ℃, has higher and higher requirements on materials, especially the requirements on engineering clinkers, for the existing printer to print, the quality of printed works is reduced, the service life of printer parts is shortened, and the position of a heating block can change when a nozzle is replaced, so that the adjustment is needed, and the time is wasted.

The traditional Chinese patent with the publication number of CN210047081U discloses a cooling printing head, which comprises a printing head, wherein a feeding hole is formed in the upper end of the printing head, a cooling water tank is attached to the outer side of the printing head, a water inlet is formed in the left side of the upper end of the cooling water tank and connected with a water pump, a water outlet is formed in the right side of the upper end of the cooling water tank, sealing fixing hole positions are formed in the front side and the rear side of the water inlet, head fixing hole positions are formed in the front side and the rear side of the water outlet, a heating block is connected to the lower end of the printing head, a heating rod hole position is formed in the left side of the; during the use, thereby it influences the too early softening of consumptive material on the fixed block to guarantee through the temperature of heating piece can not be conducted to the consumptive material pipe to the water-cooling mode, has guaranteed the precision of printing works, and the heating piece adopts the mode of direction screw fixation fixed, guarantees that the nozzle is in the replacement the heating piece and is kept the fixed state always and guarantee highly uniform, and the direction is stable.

However, in actual use, the water cooling mode is not in direct contact with the consumable conduit, the heat dissipation effect is poor, heat generated by the heating rod in the heating block rises along the outer side wall of the printing head, the bottom of the consumable conduit is easily softened, and the printing precision is affected; in addition, through the screw fixation heating block with beat printer head, the heat that the heating block produced can conduct the water tank and print the lower surface through the bolt, the cooling effect that the water tank produced also can influence heating block upper surface temperature, influences the normal use that beats printer head.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to foretell not enough, it is good to provide a radiating effect, and the printing precision is high, avoids heating the piece and beats printer head direct contact and produce the heat transfer, and the direction is stable, and convenient to detach prints effectual cooling and beats printer head.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a cooling printing head, includes the sleeve, locates installation cavity in the sleeve locates print head in the installation cavity, can dismantle connect in the thermal-insulated seat that keeps warm of sleeve bottom can dismantle connect in the cartridge heater of thermal-insulated seat bottom keeps warm, be equipped with the inlet pipe in the print head, the inlet pipe top stretches out up print head joint air-cooled subassembly, the output orientation of air-cooled subassembly the installation cavity sets up, be provided with logical material pipe in the thermal-insulated seat that keeps warm, logical material nose portion butt the inlet pipe bottom, be provided with the heating pipe in the cartridge heater, heating pipe top butt logical material nose portion, the inlet pipe lead to the material pipe with the coaxial setting of heating pipe, a plurality of exhaust holes have been seted up on the telescopic lateral wall, the exhaust hole is close to thermal-insulated seat top that keeps warm sets.

Furthermore, the air cooling assembly comprises a cold air fan and refrigerating sheets, wherein the cold air fan is sleeved on the top of the feeding pipe, the refrigerating sheets are arranged at an air outlet of the cold air fan, and the refrigerating sheets are distributed by taking the feeding pipe as a center.

Furthermore, an inner mounting thread is arranged on the inner side wall of the bottom surface of the mounting cavity; the upper surface of the heat-insulation seat is provided with a cylindrical upper platform, an upper heat-insulation external thread is arranged on the outer side wall of the upper platform, an internal thread is installed, the upper heat-insulation external thread is screwed, and the heat-insulation seat is abutted to the sleeve.

Further, the lower surface of the heat-insulation seat is provided with a lower cylindrical platform, a lower heat-insulation external thread is arranged on the outer side wall of the lower platform, the top of the heating cylinder is right opposite to the lower platform, an inner concave is arranged on the inner side wall of the inner concave, the lower heat-insulation external thread is provided with a heating internal thread, and after the heating internal thread is screwed down, the heating cylinder is abutted to the heat-insulation seat.

Further, the upper platform and the lower platform are coaxially arranged, and the material passing pipe is communicated with the centers of the upper platform and the lower platform.

Further, be provided with heater strip and temperature sensitive resistance in the cartridge heater, the heater strip is around establishing on the heating pipe inside wall, the sense terminal orientation of temperature sensitive resistance the heating pipe inboard sets up, heater strip electric connection temperature sensitive resistance.

The utility model has the advantages that:

in practical application, cold air generated by the air cooling assembly enters the installation cavity, and is discharged from the exhaust hole after directly contacting with the outer side wall of the printing head in the installation cavity for heat exchange, so that the heat dissipation effect is good, and the printing precision is high; the heat-insulating seat is additionally arranged between the printing head and the heating sleeve, so that the heating block is prevented from being in direct contact with the printing head to generate heat transfer, the direction is stable, the disassembly is convenient, and the printing effect is good; the utility model discloses the radiating effect is good, and printing precision is high, avoids heating the piece and beats printer head direct contact and produces the heat transfer, and the direction is stable, and convenient to detach prints effectually.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view taken at A-A in FIG. 2;

reference numerals: a sleeve 1; a feed pipe 101; a mounting cavity 11; an exhaust hole 12; mounting the internal thread 13; a print head 2; a heat insulation base 3; a material passing pipe 301; an upper stage 31; an upper thermal insulation external thread 32; a lower stage 33; a lower thermal insulation external thread 34; a heating cylinder 4; heating a pipe 401; heating the internal thread 41; a heating wire 42; a temperature sensitive resistor 43.

Detailed Description

As shown in fig. 1, 2 and 3, a cooling print head comprises a sleeve 1, an installation cavity 11 arranged in the sleeve 1, a print head 2 arranged in the installation cavity 11, a heat-insulating seat 3 detachably connected to the bottom of the sleeve 1, and a heating cylinder 4 detachably connected to the bottom of the heat-insulating seat 3, wherein an inlet pipe 101 is arranged in the print head 2, the top of the inlet pipe 101 extends upwards to form a print head 2 clamping air-cooling assembly, the output end of the air-cooling assembly faces the installation cavity 11, a material passing pipe 301 is arranged in the heat-insulating seat 3, the top of the material passing pipe 301 is abutted to the bottom of the inlet pipe 101, a heating pipe 401 is arranged in the heating cylinder 4, the top of the heating pipe 401 is abutted to the bottom of the material passing pipe 301, the inlet pipe 101, the material passing pipe 301 and the heating pipe 401 are coaxially arranged, and a plurality of exhaust holes 12 are formed in, the exhaust hole 12 is arranged close to the top of the heat-preservation and heat-insulation seat 3.

As shown in fig. 1, 2 and 3, cold air generated by the air cooling assembly enters the installation cavity 11, and is discharged from the exhaust hole 12 after directly contacting with the outer side wall of the printing head 2 in the installation cavity 11 for heat exchange, so that the heat dissipation effect is good, and the printing precision is high; the heat-insulating seat 3 is additionally arranged between the printing head 2 and the heating sleeve 1, so that the heating block is prevented from being in direct contact with the printing head 2 to generate heat transfer, the direction is stable, the disassembly is convenient, and the printing effect is good; the utility model discloses the radiating effect is good, and the printing precision is high, avoids heating the piece and beats printer head 2 direct contact and produces the heat transfer, and the direction is stable, and convenient to detach prints effectually.

As shown in fig. 1, fig. 2 and fig. 3, the air cooling assembly includes a cold air blower 51 sleeved on the top of the feeding pipe 101, and a plurality of cooling fins 52 arranged at an air outlet of the cold air blower 51, wherein the plurality of cooling fins 52 are distributed in a diverging manner with the feeding pipe 101 as a center; in this embodiment, through cold air fan 51 air-out, after refrigerating with cold air fan 51 air-out refrigeration through stating refrigeration piece 52, cold air fan 51 blows in cold wind in installation cavity 11 and beats printer head 2 lateral wall direct contact and carry out the heat exchange, and the wind after the heat exchange is discharged from exhaust hole 12, and the radiating effect is good, and printing precision is high.

As shown in fig. 1, 2 and 3, an inner side wall of the bottom surface of the mounting cavity 11 is provided with a mounting internal thread 13; a cylindrical upper platform 31 is arranged on the upper surface of the heat-insulating base 3, an upper heat-insulating external thread 32 is arranged on the outer side wall of the upper platform 31, and after the mounting internal thread 13 is screwed with the upper heat-insulating external thread 32, the heat-insulating base 3 is abutted to the sleeve 1; in this embodiment, after the internal mounting thread 13 is screwed to the external upper heat-insulating thread 32, the upper surface of the heat-insulating base 3 is abutted against the bottom surface of the mounting cavity 11, and the feed pipe 101 and the feed pipe 301 are abutted against each other.

As shown in fig. 1, 2 and 3, a cylindrical lower platform 33 is arranged on the lower surface of the heat-insulating seat 3, a lower heat-insulating external thread 34 is arranged on the outer side wall of the lower platform 33, the top of the heating cylinder 4 is provided with an indent facing the lower platform 33, a heating internal thread 41 is arranged on the side wall of the indent facing the lower heat-insulating external thread 34, and after the lower heat-insulating external thread 34 and the heating internal thread 41 are screwed, the heating cylinder 4 abuts against the heat-insulating seat 3; in this embodiment, the lower surface of the heat insulating base 3 and the upper surface of the heating cylinder 4 are screwed together by the lower heat insulating male screw 34 and the heating female screw 41, so that the material passing pipe 301 and the heating pipe 401 are connected in contact with each other.

As shown in fig. 1, 2 and 3, the upper platform 31 and the lower platform 33 are coaxially arranged, and the material passing pipe 301 communicates the centers of the upper platform 31 and the lower platform 33; in this embodiment, the upper platform 31 is screwed to abut against the bottom of the sleeve 1, and the lower platform 33 is screwed to abut against the upper surface of the heating cylinder 4, so that the feeding pipe 101, the material passing pipe 301 and the heating pipe 401 are abutted and connected, and the device has the advantages of stable direction, convenience in disassembly and good printing effect.

As shown in fig. 1, 2 and 3, a heating wire 42 and a temperature-sensitive resistor 43 are disposed in the heating cylinder 4, the heating wire 42 is wound on the inner side wall of the heating tube 401, a detection end of the temperature-sensitive resistor 43 is disposed toward the inner side of the heating tube 401, and the heating wire 42 is electrically connected to the temperature-sensitive resistor 43; in this embodiment, the heating pipe 401 is continuously heated by the heating wire 42, and when the temperature in the heating pipe 401 is too high, the heating pipe 401 is automatically powered off by the temperature sensitive resistor 43, so that the use is safer and more reliable.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein will be apparent to those skilled in the art without departing from the scope and spirit of the invention as defined in the accompanying claims.

Claims

1. A cooled printhead, comprising: including sleeve (1), locate installation cavity (11) in sleeve (1) is located beat printer head (2) in installation cavity (11), can dismantle connect in the thermal-insulated seat (3) of heat preservation of sleeve (1) bottom can dismantle connect in heat cylinder (4) of thermal-insulated seat (3) bottom keeps warm, it is equipped with inlet pipe (101) to beat printer head (2) in, inlet pipe (101) top stretches out up beat printer head (2) joint air cooling subassembly, the output orientation of air cooling subassembly installation cavity (11) set up, be provided with logical pipe (301) in the thermal-insulated seat (3) that keeps warm, logical pipe (301) top butt inlet pipe (101) bottom, be provided with heating pipe (401) in heating cylinder (4), heating pipe (401) top butt logical pipe (301) bottom, inlet pipe (101), Lead to material pipe (301) with heating pipe (401) coaxial setting, seted up a plurality of exhaust holes (12) on the lateral wall of sleeve (1), exhaust hole (12) are close to heat preservation heat insulation seat (3) top sets up.

2. A cooled printhead as claimed in claim 1, wherein: the air cooling assembly comprises a cold air fan (51) sleeved at the top of the feeding pipe (101), and refrigerating sheets (52) arranged at an air outlet of the cold air fan (51), wherein the refrigerating sheets (52) are distributed by taking the feeding pipe (101) as the center.

3. A cooled printhead as claimed in claim 1, wherein: an inner mounting thread (13) is arranged on the inner side wall of the bottom surface of the mounting cavity (11); the upper surface of heat preservation and insulation seat (3) is provided with columniform upper mounting plate (31), be provided with on the lateral wall of upper mounting plate (31) heat preservation external screw thread (32), installation internal thread (13) with go up heat preservation external screw thread (32) and screw up the back, heat preservation and insulation seat (3) butt sleeve (1).

4. A cooled printhead according to claim 3, wherein: the lower surface of the heat-preservation and heat-insulation seat (3) is provided with a lower cylindrical platform (33), a lower heat-preservation external thread (34) is arranged on the outer side wall of the lower platform (33), the top of the heating cylinder (4) is right opposite to the lower platform (33) is provided with an inner concave, the side wall of the inner concave is right opposite to the lower heat-preservation external thread (34) is provided with a heating internal thread (41), the lower heat-preservation external thread (34) and the heating internal thread (41) are screwed down, and the heating cylinder (4) is abutted to the heat-preservation and heat-insulation seat (3).

5. A cooled printhead as claimed in claim 4, wherein: the upper platform (31) and the lower platform (33) are coaxially arranged, and the material passing pipe (301) is communicated with the centers of the upper platform (31) and the lower platform (33).

6. A cooled printhead as claimed in claim 1, wherein: be provided with heater strip (42) and temperature sensitive resistance (43) in cartridge heater (4), heater strip (42) are around establishing on heating pipe (401) inside wall, the sense terminal orientation of temperature sensitive resistance (43) heating pipe (401) inboard sets up, heater strip (42) electric connection temperature sensitive resistance (43).