CN209566501U - A kind of 3D printing spray head - Google Patents

Abstract

The utility model discloses a kind of 3D printing spray heads, it is related to 3D printing technique field, including support plate, support plate is equipped with the support rod connected with printer body, through the spout section being equipped with as material outlet in support plate, spout section is arranged vertically upwards, spout section is connected by linkage section with conveying section, linkage section includes that the lesser inside thread of caliber is connected with the tubule of conveying section and the biggish inside thread of caliber is connected with the big pipe of spout section, screw thread between spout section and big pipe is identical as the rotation direction of tubule and the screw thread of conveying section, conveying section is connected with the magazine for storing raw material, support plate is equipped with the rotary components for driving linkage section rotation, spout section, big pipe, tubule and conveying section are hollow tubular structure, multiple baffles are hinged in big pipe, baffle is circumferentially arranged and is arranged diagonally downward, each baffle leans on Spring is equipped between the side and big pipe of nearly big pipe；The utility model has structure simple, is conveniently adjusted the advantages of spray head sprays the flow of raw material.

Description

A kind of 3D printing spray head

Technical field

The utility model relates to 3D printing technique fields, more particularly to a kind of 3D printing spray head.

Background technique

Molten copper infiltration (FDM) is current with the fastest developing speed, most promising 3D printing rapid shaping technique.FDM Moulding process is that a kind of be used as not against laser forms the energy, and molten copper infiltration mechanism includes three-axis moving mechanism, wire-feed motor Structure, printing head and control mechanism, and by the forming method of various silk materials heating fusing, the course of work is to use silk supplying machine first Filamentous thermoplastic material is sent into spray head by structure, Filamentous thermoplastic material is added to molten state in the showerhead, later molten state Filamentary material is squeezed out from spray head, is provided later with the movement of spray head, the filamentary material of molten state according to computer Section profile information is selectively coated on the product pedestal of workbench, and is quickly cooled down solidification, spray head after one layer of completion Rise a layer height, then carry out next layer of coating, is recycled with this, ultimately form three-dimensional objects.

But the material extrusion nozzle inside diameter cross sectional shape of existing printing head only has fixed circle, unit time inner nozzle The volume of spinneret is fixed.Non-adjustable due to nozzle inside diameter area of section, we not can control the printing essence of 3D printer Degree and speed, however it is directed to different printing purposes and different print areas, different printing precision and speed are needed, even if It is same model, also there is different required precisions at model inside and edge.

Therefore, it is necessary to design a kind of adjustable 3D printing spray head of flow, convenient for according to different printing purposes and beating The volume for printing region adjustment spray head spinneret, adapts to different printing precision and speed.

Utility model content

The purpose of this utility model is that: in order to solve, existing printing head internal diameter area of section is non-adjustable to be led to not control The problem of 3D printer accuracy and speed processed, the utility model provide a kind of 3D printing spray head.

The utility model specifically uses a kind of following technical scheme: 3D printing spray head to achieve the goals above, including Support plate, the support plate are equipped with the support rod connected with printer body, run through to be equipped with being used as raw material in the support plate The spout section of outlet, the spout section can be set on the supporting plate by way of welding or being bonded, and the spout section is straight up Setting, the spout section are connected by linkage section with conveying section, and the linkage section includes the lesser inside thread connection of caliber There are the tubule of conveying section and the biggish inside thread of caliber to be connected with the big pipe of spout section, the caliber of the big pipe is greater than tubule Caliber, the outside of the conveying section be equipped with external screw thread, be equipped on the inside of the tubule and conveying section on the outside of external screw thread match Internal screw thread is equipped with external screw thread on the outside of the spout section, be equipped on the inside of the big pipe and spout section on the outside of external screw thread match Internal screw thread is connected between the big pipe and tubule by pipe reducer, and the big pipe and tubule can be by welding or gluing The mode connect is connected with pipe reducer, the rotation direction of the screw thread between the spout section and big pipe and tubule and the screw thread of conveying section It is identical, i.e., rotation direction otherwise be all it is left-handed or be all dextrorotation, the conveying section is connected with the magazine for storing raw material, described Support plate is equipped with the rotary components for driving linkage section rotation, and the spout section, big pipe, tubule and conveying section are hollow tubular Structure, is hinged with multiple baffles in the big pipe, and the baffle circumferentially setting and is arranged diagonally downward, and each baffle is close to big pipe Side and big pipe between be equipped with spring, specifically, rotary components drive linkage section rotation, it is defeated when linkage section up moves Material section opens baffle, so that the flow for the raw material that spout section sprays increases, when linkage section moves down, work of the baffle in spring It rebounds under, so that the flow for the raw material that spout section sprays reduces, so as to be conveniently adjusted the raw material of spout section ejection The size of volume.

Further, the rotary components include being connected through a screw thread the annulus being set on the outside of linkage section, annulus It can be threadedly attached on the outside of big pipe or on the outside of tubule, the support plate is equipped with and the concentric annular groove of linkage section, The annulus lower end is symmetrically set there are two connecting rod, and each connecting rod lower end is equipped with the sliding block matched with annular groove, institute The driving assembly that support plate is equipped with driving annulus rotation is stated, specifically, driving assembly drives annulus rotation, so that Annulus can rotate under the action of sliding block along annular groove, due to the supporting role of connecting rod, in the same of annulus rotation When, linkage section can be realized up and down motion.

Further, the driving component includes the driven gear being located on the outside of annulus and is located at upper end face of support plate The driving gear that the output shaft of motor A, the motor A are equipped with and driven gear is meshed, specifically, motor A is passed sequentially through Driving gear and driven gear drive annulus rotation.

Further, the driving component includes the driven pulley being located on the outside of annulus and is located at upper end face of support plate Motor B, the output shaft of the motor B is arranged vertically upwards and is equipped with driving pulley, between the driven pulley and driving pulley It is connected by belt, specifically, motor B, which passes sequentially through driving pulley, belt and driven pulley, drives annulus rotation.

Further, handle is equipped on the outside of the linkage section, handle can be welded on the outside of big pipe or tubule, specifically, Linkage section can be can be manually rotated with handle, to realize the up and down motion of linkage section.

The beneficial effects of the utility model are as follows:

1, the utility model structure is simple, and the adjusting of the flow for the raw material that spray head sprays is realized by the baffle of linkage section, When linkage section moves down, spout section opens baffle so that spout section spray raw material flow increase, when linkage section up When movement, baffle rebounds under the action of the spring, so that the flow for the raw material that spout section sprays reduces, so as to easily adjust Save the size of the volume for the raw material that spout section sprays；

2, the utility model drives annulus rotation by driving assembly, so that annulus can be in the effect of sliding block Under rotated along annular groove, due to the supporting role of connecting rod, while annulus rotation, can be realized linkage section up and down Movement；

3, the driving assembly of the utility model includes motor A, and motor A passes sequentially through driving gear and driven gear band rotating ring The rotation of shape portion；

4, the driving assembly of the utility model includes motor B, and motor B passes sequentially through driving pulley, belt and driven pulley Drive annulus rotation；

5, the utility model may be implemented to manually adjust the flow that the raw material of spray head sprays by setting handle.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the enlarged structure schematic diagram of A in the utility model Fig. 1；

Fig. 3 is the structural schematic diagram of the baffle of the utility model；

Fig. 4 is the structural schematic diagram of the driving assembly of the utility model；

Appended drawing reference: 1- spout section, 2- support plate, 3- motor A, 4- driving gear, 5- driven gear, 6- annulus, 7- Spring, 8- baffle, 9- handle, 10- conveying section, 11- support rod, 12- tubule, 13- pipe reducer, the big pipe of 14-, 15- connection Section, 16- connecting rod, 17- annular groove, 18- sliding block, 19- motor B, 20- driving pulley, 21- belt, 22- driven pulley.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.

Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all Belong to the range of the utility model protection.

It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.In addition, term " the One ", " second " etc. is only used for distinguishing description, is not understood to indicate or imply relative importance.

In the description of the utility model embodiment, it should be noted that the instructions such as term "inner", "outside", "upper" Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings or when utility model product use usually puts The orientation or positional relationship put, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this is practical Novel limitation.

Embodiment 1

As shown in Fig. 1 to 3, the present embodiment provides a kind of 3D printing spray head, including support plate 2, set in the support plate 2 There is the support rod 11 connected with printer body, the spout section 1 being equipped with as material outlet is run through in the support plate 2, it is described Spout section 1 is located at by welding in support plate 2, and the spout section 1 is arranged vertically upwards, and the spout section 1 passes through company It connects section 15 to be connected with conveying section 10, the linkage section 15 includes the tubule that the lesser inside thread of caliber is connected with conveying section 10 12 and the biggish inside thread of caliber be connected with the big pipe 14 of spout section 1, the caliber of the big pipe 14 is greater than the caliber of tubule 12, The outside of the conveying section 10 is equipped with external screw thread, matches on the inside of the tubule 12 equipped with the external screw thread with 10 outside of conveying section Internal screw thread is equipped with external screw thread on the outside of the spout section 1, is equipped on the inside of the big pipe 14 and the external screw thread in 1 outside of spout section matches The internal screw thread of conjunction is connected between the big pipe 14 and tubule 12 by pipe reducer 13, and the big pipe 14 and tubule 12 can It is connected in a manner of by welding or being bonded with pipe reducer 13, the screw thread and tubule between the spout section 1 and big pipe 14 12 is identical with the rotation direction of the screw thread of conveying section 10, rotation direction be all it is left-handed, the conveying section 10 is connected with the magazine for storing raw material Logical, the support plate 2 is equipped with the rotary components for driving linkage section 15 to rotate, the spout section 1, big pipe 14, tubule 12 and defeated Expect that section 10 is hollow tubular structure, multiple baffles 8 are hinged in the big pipe 14, the baffle 8 is circumferential to be arranged and be tilted towards Lower setting, each baffle 8 are equipped with spring 7 between the side and big pipe 14 of big pipe 14, specifically, rotary components drive connection Section 15 rotates, and when linkage section 15 up moves, conveying section 10 opens baffle 8, so that the flow for the raw material that spout section 1 sprays increases Greatly, when linkage section 15 moves down, baffle 8 rebounds under the action of spring 7, so that the flow for the raw material that spout section 1 sprays Reduce, so as to be conveniently adjusted spout section 1 ejection raw material volume size.

Embodiment 2

As shown in Fig. 1 to 3, the present embodiment is further improved on the basis of embodiment 1, the specially described rotation group Part includes being connected through a screw thread the annulus 6 for being set in 15 outside of linkage section, and annulus 6 is threadedly attached in outside big pipe 14 Side, the support plate 2 is equipped with and the concentric annular groove 17 of linkage section 15, there are two 6 lower end of annulus is symmetrically set Connecting rod 16, each 16 lower end of connecting rod are equipped with the sliding block 18 matched with annular groove 17, and the support plate 2 is equipped with drive ring The driving assembly that shape portion 6 rotates, specifically, driving assembly drives annulus 6 to rotate, so that annulus 6 can be in sliding block It is rotated under the action of 18 along annular groove 17, due to the supporting role of connecting rod 16, while annulus 6 rotates, linkage section 15 can be realized up and down motion.

Embodiment 3

As shown in Figure 1, the present embodiment is further improved on the basis of embodiment 2, specially the driving component Including the driven gear 5 for being located at 6 outside of annulus and the motor A3 for being located at 2 upper surface of support plate, the output shaft of the motor A3 It is equipped with the driving gear 4 being meshed with driven gear 5, specifically, motor A3 passes sequentially through driving gear 4 and driven gear 5 Annulus 6 is driven to rotate.

Embodiment 4

As shown in figure 4, the present embodiment is further improved on the basis of embodiment 2, specially the driving component Including the driven pulley 22 for being located at 6 outside of annulus and the motor B19 for being located at 2 upper surface of support plate, the output of the motor B19 Axis is arranged vertically upwards and is equipped with driving pulley 20, is connected between the driven pulley 22 and driving pulley 20 by belt 21 It connects, drives annulus 6 to rotate specifically, motor B19 passes sequentially through driving pulley 20, belt 21 and driven pulley 22.

Embodiment 5

As shown in Figure 1, the present embodiment is further improved on the basis of embodiment 1, the specially described linkage section 15 Outside is equipped with handle 9, and handle 9 is welded on big 14 outside of pipe, can be manually rotated linkage section 15 with handle 9, to realize connection The up and down motion of section 15.

Claims (5)

1. a kind of 3D printing spray head, including support plate (2), the support plate (2) is equipped with the branch connected with printer body Strut (11), which is characterized in that through the spout section (1) being equipped with as material outlet, the spout section on the support plate (2) (1) it is arranged vertically upwards, the spout section (1) is connected by linkage section (15) with conveying section (10), the linkage section (15) The tubule (12) of conveying section (10) is connected with including the lesser inside thread of caliber and the biggish inside thread of caliber is connected with spray The big pipe (14) of mouth section (1) is connected between the big pipe (14) and tubule (12) by pipe reducer (13), the spout Screw thread between section (1) He great Guan (14) is identical as the rotation direction of screw thread of tubule (12) and conveying section (10), the conveying section (10) it is connected with the magazine for storing raw material, the support plate (2) is equipped with the rotary components for driving linkage section (15) rotation, The spout section (1), big pipe (14), tubule (12) and conveying section (10) are hollow tubular structure, hinge in the big pipe (14) It being connected to multiple baffles (8), the baffle (8) is circumferentially arranged and is arranged diagonally downward, and the one of the close big pipe (14) of each baffle (8) Spring (7) are equipped between side and big pipe (14).

2. a kind of 3D printing spray head according to claim 1, which is characterized in that the rotary components include passing through screw thread Connection is set in the annulus (6) on the outside of linkage section (15), and the support plate (2) is equipped with and linkage section (15) concentric annular Sliding slot (17), annulus (6) lower end are symmetrically set there are two connecting rod (16), and each connecting rod (16) lower end is equipped with and annular The sliding block (18) that sliding slot (17) matches, the support plate (2) are equipped with the driving assembly of driving annulus (6) rotation.

3. a kind of 3D printing spray head according to claim 2, which is characterized in that the driving component includes being located at ring-type Driven gear (5) on the outside of portion (6) and the motor A (3) for being located at support plate (2) upper surface, on the output shaft of the motor A (3) Equipped with the driving gear (4) being meshed with driven gear (5).

4. a kind of 3D printing spray head according to claim 2, which is characterized in that the driving component includes being located at ring-type Driven pulley (22) on the outside of portion (6) and the motor B (19) for being located at support plate (2) upper surface, the output shaft of the motor B (19) It is arranged vertically upwards and is equipped with driving pulley (20), pass through belt (21) between the driven pulley (22) and driving pulley (20) It is connected.

5. a kind of 3D printing spray head according to claim 1-4, which is characterized in that the linkage section (15) is outside Side is equipped with handle (9).