CN213830343U

CN213830343U - 3D printer print head assembly

Info

Publication number: CN213830343U
Application number: CN202022745698.3U
Authority: CN
Inventors: 唐志雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-07-30
Anticipated expiration: 2030-11-24

Abstract

The utility model discloses a 3D printer print head subassembly, include the heating piece and install the heat dissipation fin at heating piece top, the heating piece bottom is provided with and is used for conveniently changing the spacing block mechanism in order to improve the printing effect, this 3D printer print head subassembly to be different from prior art, make operating personnel when changing the printing shower nozzle, simplify loaded down with trivial details change step, through spacing block mechanism, the work load of operating personnel when changing the printing shower nozzle has been reduced, the use to assembly and disassembly tools has been reduced simultaneously, reduce the requirement of printing the shower nozzle dismouting to a certain extent, the higher part of temperature such as the printing shower nozzle of having avoided changing the in-process scalds operating personnel.

Description

3D printer print head assembly

Technical Field

The utility model relates to a 3D printing apparatus technical field specifically is a 3D printer print head subassembly.

Background

The material of the 3D printer is generally a thermoplastic material, such as ABS or PC plastic, supplied in a filament form, heated and melted in a nozzle, and then the nozzle moves along the cross-sectional profile and the filling trajectory of the part and extrudes the melted material, and the extruded material rapidly solidifies in air and bonds and accumulates with the surrounding material, thus forming a complete solid part.

However, we find when using, the 3D printer is after using a period of time, in order to guarantee the printing effect or have other printing demands, need to change the printing shower nozzle, the step of change begins to preheat the shower nozzle for opening the machine, extract the consumptive material after reaching preheating temperature, screw down the screw of fixed shower nozzle fan casing with the starter, use the little spanner of opening to screw down the shower nozzle, and clear up the impurity in the venturi with the consumptive material, then screw up new shower nozzle again, screw up the screw of fixed shower nozzle fan casing, but in the actual replacement process, it is loaded down with trivial details not only to change the step, the work load in the operating personnel change process has been increased, and need use multiple assembly and disassembly tools, the requirement of dismouting has been improved, simultaneously, shower nozzle part temperature is higher, there is the possibility of scalding operating personnel, for this reason, we propose a 3D printer print head subassembly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a 3D printer print head subassembly to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a 3D printer print head subassembly, includes the heating piece and installs the radiating fin at heating piece top, heating piece bottom is provided with and is used for conveniently changing the spacing block mechanism in order to improve the printing effect to be different from prior art, make operating personnel when changing the printing shower nozzle, simplify loaded down with trivial details change step, through spacing block mechanism, reduced the work load of operating personnel when changing the printing shower nozzle, reduced the use to assembly and disassembly tools simultaneously, reduce the requirement of printing the shower nozzle dismouting to a certain extent, avoided the higher parts of temperature such as the printing shower nozzle of change in-process to scald operating personnel.

Preferably, spacing block mechanism includes a plurality of bracing pieces of fixing in heating block bottom, be provided with the regulating part that is used for convenient change on the bracing piece, arbitrary one side of heating block is fixed with L shape pole, be provided with the locating part that is used for making things convenient for the block on the L shape pole, through spacing block mechanism, then guarantee operating personnel when changing the printing shower nozzle, simplify loaded down with trivial details change step.

Preferably, the regulating part is including installing the mount in a plurality of bracing pieces bottoms, mount top swing joint has the internal gear, rotate through the bearing on the heating block and install a plurality of main shafts that are used for making things convenient for the rotation, the main shaft all is fixed with the straight-teeth gear that cooperatees and use with the internal gear outward, a plurality of carriages that are used for making things convenient for the gliding are installed to the mount bottom, be provided with the fastener that is used for making things convenient for the change on the carriage, through the regulating part, then guaranteed to have reduced the work load of operating personnel when changing the printing shower nozzle, reduced the use to assembly and disassembly tools simultaneously.

Preferably, the fastener includes a plurality of aversion frames of sliding on two carriages adjacent with arbitrary one straight-teeth gear, it cooperatees the rack that uses with the straight-teeth gear all to be fixed with on the aversion frame, and is a plurality of straight-teeth gear one end joint is kept away from to the aversion frame has the printing shower nozzle, the straight-teeth gear one end both sides are kept away from to the aversion frame all are fixed with the fixture block that improves the block effect, the annular that is used for improving the leakproofness is offered to heating block bottom, it is fixed with the lug that uses with the annular phase-match to print the shower nozzle top, through the fastener, then guarantee to reduce the requirement of printing the shower nozzle dismouting to a certain extent.

Preferably, the locating part is including fixing the poker rod that the inner gear is close to the L shape pole outside, offer the jack that is used for inserting the location on the L shape pole, the heating block is close to L shape pole one side and is fixed with the socket, swing joint has the inserted bar on the socket, through the locating part, then has guaranteed to have avoided the higher part of temperature such as printing shower nozzle to scald operating personnel among the change process.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses be different from prior art for operating personnel simplifies loaded down with trivial details change step when changing the printing shower nozzle, through spacing block mechanism, has reduced operating personnel's work load when changing the printing shower nozzle, has reduced the use to assembly and disassembly tools simultaneously, reduces the requirement of printing the shower nozzle dismouting to a certain extent, has avoided changing the higher part of in-process printing shower nozzle isothermal and has scalded operating personnel.

Drawings

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

FIG. 2 is a schematic view of the structure of FIG. 1 in another orientation according to the present invention;

FIG. 3 is a schematic view of a portion of the structure of FIG. 2 according to the present invention;

FIG. 4 is a schematic view of the fixing frame of the present invention;

FIG. 5 is a schematic view of the sliding frame structure of the present invention;

FIG. 6 is a schematic view of the printing head structure of the present invention;

fig. 7 is an enlarged structure diagram of the area a of the present invention.

In the figure: 1-heating block; 2-heat dissipation fins; 3-limiting clamping mechanism; 4-a support bar; 5-an adjusting part; 6-L-shaped rods; 7-a limiting member; 8, fixing a frame; 9-internal gear; 10-a main shaft; 11-a spur gear; 12-a carriage; 13-a snap-fit; 14-a shift frame; 15-a rack; 16-a print head; 17-a cartridge; 18-ring grooves; 19-a bump; 20-a poke rod; 21-a jack; 22-a socket; 23-insert rod.

Detailed Description

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. 1-7, the present invention provides a technical solution: A3D printer print head assembly comprises a heating block 1 and a radiating fin 2 arranged on the top of the heating block 1, wherein the heating block 1 consists of a heating rod and a thermocouple so as to be convenient for normal printing;

the bottom of the heating block 1 is provided with a limiting clamping mechanism 3 which is convenient to replace so as to improve the printing effect, when in use, an operator uses tweezers to clamp an insert rod 23 and moves upwards, then the poke rod 20 is poked outwards, the poke rod 20 drives an inner gear 9 to rotate, the inner gear 9 drives a straight gear 11 meshed with the inner gear to rotate, then the straight gear 11 drives a rack 15 to move, further a shifting frame 14 is driven to slide outwards on a sliding frame 12, the clamping of a printing spray head 16 is cancelled, the printing spray head 16 is taken down, a new printing spray head 16 is taken out, a convex block 19 and a ring groove 18 are oppositely arranged, then the poke rod 20 is reversely rotated, the insert rod 23 is clamped upwards again and is inserted into a jack 21, the replacement can be completed, when the operator replaces the printing spray head 16, the fussy replacing steps are simplified, and the workload of the operator when replacing the printing spray head 16 is reduced through the limiting clamping mechanism 3, meanwhile, the use of dismounting tools is reduced, the requirement for dismounting the printing nozzle 16 is reduced to a certain extent, and the situation that parts with higher temperature such as the printing nozzle 16 and the like are scalded to operators in the replacement process is avoided.

The limiting clamping mechanism 3 comprises a plurality of supporting rods 4 fixed at the bottom of the heating block 1, adjusting pieces 5 used for convenient replacement are arranged on the supporting rods 4, an L-shaped rod 6 is fixed on any one side of the heating block 1, a limiting piece 7 used for facilitating clamping is arranged on the L-shaped rod 6, when the limiting clamping mechanism is used, an operator uses tweezers to clamp an insertion rod 23 and moves upwards, then the insertion rod 20 is shifted outwards, the shifting rod 20 drives an internal gear 9 to rotate, the internal gear 9 drives a straight gear 11 meshed with the internal gear 9 to rotate, then the straight gear 11 drives a rack 15 to move, further, a shifting frame 14 is driven to slide outwards on a sliding frame 12, clamping of a printing nozzle 16 is cancelled, the printing nozzle 16 is taken down, a new printing nozzle 16 is taken out to place a convex block 19 and a ring groove 18 relatively, then the shifting rod 20 rotates reversely, the insertion rod 23 is upwards clamped again and inserted into an insertion hole 21, can accomplish the change for operating personnel when printing shower nozzle 16 in the change, simplify loaded down with trivial details change step, through spacing block mechanism 3, reduced operating personnel's work load when printing shower nozzle 16 in the change, reduced the use to assembly and disassembly tools simultaneously, reduce the requirement of printing 16 dismouting of shower nozzle to a certain extent, avoided the higher part of temperature such as printing shower nozzle 16 in the change process to scald operating personnel.

Regulating part 5 is including installing the mount 8 in 4 bottoms of a plurality of bracing pieces, 8 top swing joint of mount have internal gear 9, it installs a plurality of main shafts 10 that are used for making things convenient for the pivoted to rotate through the bearing on the heating piece 1, main shaft 10 all is fixed with straight-teeth gear 11 with internal gear 9 matched with and uses outward, a plurality of carriage 12 that are used for making things convenient for the gliding are installed to 8 bottoms of mount, be provided with the fastener 13 that is used for making things convenient for the change on carriage 12, when using, poker rod 20 drives internal gear 9 and rotates, and internal gear 9 drives the straight-teeth gear 11 rotation of meshing with it, then straight-teeth gear 11 drives rack 15 and removes, and then drives and shift frame 14 and outwards slide on carriage 12, has reduced the work load of operating personnel when changing printing shower nozzle 16, has reduced the use to assembly and disassembly tools simultaneously.

Said engaging member 13 comprises a plurality of displacement frames 14 sliding on two carriages 12 adjacent to any one spur gear 11, the shift frames 14 are respectively fixed with a rack 15 matched with the straight gear 11 for use, one end of each shift frame 14 far away from the straight gear 11 is clamped with a printing nozzle 16, clamping blocks 17 for improving the clamping effect are fixed on both sides of one end of the displacement frame 14 away from the straight gear 11, an annular groove 18 for improving the sealing performance is formed at the bottom of the heating block 1, a convex block 19 matched with the annular groove 18 for use is fixed at the top of the printing spray head 16, when the printing device is used, the straight gear 11 drives the rack 15 to move, and then the shifting frame 14 is driven to slide outwards on the sliding frame 12, clamping of the printing nozzle 16 is cancelled, the printing nozzle 16 is taken down, a new printing nozzle 16 is taken out, the bump 19 and the annular groove 18 are oppositely arranged, and the requirement for dismounting and mounting the printing nozzle 16 is reduced to a certain extent.

Locating part 7 is including fixing the poker rod 20 that is close to the L shape pole 6 outside at internal gear 9, offer the jack 21 that is used for inserting the location on the L shape pole 6, heating block 1 is close to L shape pole 6 one side and is fixed with the socket 22, swing joint has inserted bar 23 on the socket 22, and when using, operating personnel uses tweezers to carry inserted bar 23 and rebound, outwards stirs poker rod 20, changes the reverse rotation poker rod 20 of accomplishing back, upwards presss from both sides inserted bar 23 and inserts to jack 21 in again, can accomplish to change and avoid changing the higher part of in-process printing shower nozzle 16 isothermal to scald operating personnel.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a 3D printer print head subassembly, includes heating block (1) and installs heat dissipation fin (2) at heating block (1) top, its characterized in that: the bottom of the heating block (1) is provided with a limiting clamping mechanism (3) which is used for facilitating replacement to improve the printing effect.

2. The 3D printer printhead assembly of claim 1, wherein: spacing block mechanism (3) include a plurality of bracing pieces (4) of fixing in heating piece (1) bottom, be provided with regulating part (5) that are used for conveniently changing on bracing piece (4), heating piece (1) arbitrary one side is fixed with L shape pole (6), be provided with locating part (7) that are used for making things convenient for the block on L shape pole (6).

3. The 3D printer printhead assembly of claim 2, wherein: regulating part (5) is including installing mount (8) in a plurality of bracing pieces (4) bottom, mount (8) top swing joint has internal gear (9), it installs a plurality of main shafts (10) that are used for convenient pivoted to rotate through the bearing on heating piece (1), main shaft (10) all are fixed with straight-teeth gear (11) that cooperate the use with internal gear (9) outward, a plurality of carriage (12) that are used for making things convenient for the gliding are installed to mount (8) bottom, be provided with fastener (13) that are used for convenient change on carriage (12).

4. A 3D printer printhead assembly according to claim 3, wherein: fastener (13) include shift frame (14) of a plurality of slides on two carriage (12) adjacent with arbitrary one straight-teeth gear (11), it is all fixed with rack (15) that cooperate and use with straight-teeth gear (11) on shift frame (14), a plurality of shift frame (14) are kept away from straight-teeth gear (11) one end joint and are had printing shower nozzle (16), shift frame (14) are kept away from straight-teeth gear (11) one end both sides and all are fixed with fixture block (17) that improve the block effect, annular (18) that are used for improving the leakproofness are offered to heating block (1) bottom, printing shower nozzle (16) top is fixed with lug (19) with annular (18) assorted use.

5. The 3D printer printhead assembly of claim 2, wherein: locating part (7) including fixing poker rod (20) that are close to L shape pole (6) outside in internal gear (9), offer jack (21) that are used for inserting the location on L shape pole (6), heating block (1) is close to L shape pole (6) one side and is fixed with socket (22), swing joint has inserted bar (23) on socket (22).