CN214188464U

CN214188464U - Discharging system for 3D printer nozzle

Info

Publication number: CN214188464U
Application number: CN202023130615.6U
Authority: CN
Inventors: 王博; 张淮
Original assignee: Senbo Yancheng 3d Technology Co ltd
Current assignee: Senbo Yancheng 3d Technology Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-09-14
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses a discharging system for a 3D printer nozzle, which comprises a motor, a screw rod, a nozzle, a feeding bin and a base, wherein the motor is fixed on a motor mounting plate, the lower end face of the motor mounting plate is connected with a fixing frame through a connecting column, the fixing frame is fixed on the base through screws, a discharging pipeline is fixed below the fixing frame through screws, an external thread is arranged on the cylindrical surface of one end of the discharging pipeline, which is far away from the fixing frame, the external thread is connected with the nozzle, an output shaft of the motor is connected with the screw rod through a shaft coupling, the screw rod vertically extends downwards into the discharging pipeline, the discharging pipeline is arranged below a bearing and is provided with a feeding hole, the feeding hole is communicated with a discharging hole of the feeding bin, the thread diameter of a spiral part is in intermittent fit with an inner hole of the discharging pipeline, the discharging pipeline is provided with a heating device near the position of the nozzle, the heating device melts plastic particles, and the melted plastic particles are extruded out from the spray holes on the spray nozzle under the driving of the motor.

Description

Discharging system for 3D printer nozzle

Technical Field

The utility model relates to a 3D prints technical field, in particular to 3D printer is ejection of compact system for nozzle.

Background

With the development of scientific technology, 3D printing technology has been applied in various fields of jewelry, footwear, industrial design, automobiles, and the like. Wherein, the 3D printer is the core equipment that 3D printed, it is based on digital model file, the mode that sprays the printing material through print nozzle on print platform successive layer constructs three-dimensional object, so the printer nozzle plays vital function in the 3D printer, and prior art's the ejection of compact system of printer nozzle, most structure is fairly simple, it extrudes from the shower nozzle directly to drive the material through the screw rod, and be provided with cooling device, all jam in the department of leading to the ejection of compact easily, and the life is short, so need redesign 3D printer is ejection of compact system for the nozzle.

SUMMERY OF THE UTILITY MODEL

According to the not enough of above prior art, the utility model provides a 3D printer is ejection of compact system for nozzle.

In order to solve the technical problem, the utility model provides a discharge system for a 3D printer nozzle, which comprises a motor, a screw rod, a nozzle, a feeding bin and a base, wherein the motor is fixed on a motor mounting plate, the lower end surface of the motor mounting plate is connected with a fixing frame through a connecting column, the fixing frame is fixed on the base through screws, a discharge pipeline is fixed below the fixing frame through screws, an external thread is arranged on the cylindrical surface of one end of the discharge pipeline, which is far away from the fixing frame, the external thread is connected with the nozzle, a heating device is arranged at the position of the discharge pipeline, which is close to the nozzle, an output shaft of the motor is connected with the screw rod through a coupler, the screw rod vertically extends downwards into the discharge pipeline, the discharge pipeline comprises a supporting part and a discharge part which are integrally designed, the screw rod comprises a light part and a spiral part, and the light part is supported in the supporting part of the discharge pipeline through a bearing, the feed inlet has been seted up to the top of ejection of compact portion, and the feed inlet is big-end-up's uncovered design, and is linked together with the discharge gate in feeding storehouse, the screw thread major diameter and the ejection of compact pipeline hole of screw portion adopt intermittent type cooperation, it has the orifice to open on the nozzle, when the nozzle was screwed completely on the ejection of compact pipeline, left 3-5 MM's clearance between the lower terminal surface of screw portion and the up end of orifice.

Preferably, the heating device comprises a left heating block and a right heating block, and the left heating block and the right heating block are arranged at the position, close to the nozzle, of the discharging pipeline.

Preferably, the lower part that the discharge pipeline is close to the feed inlet is provided with cooling device, and cooling device includes sleeve and heat dissipation circle, the heat dissipation circle is including three, and wherein the heat dissipation circle that is located middle department opens there is the intercommunicating pore, and the heat dissipation circle sets up and adopts the integrated design at the outer lane of discharge pipeline and discharge pipeline, sleeve seal cover dress is in the outside of heat dissipation circle, and with form a cooling channel between the heat dissipation circle, cooling channel includes cooling channel and lower cooling channel, goes up cooling channel and is linked together through the intercommunicating pore with lower cooling channel, water inlet and delivery port have been seted up on the sleeve, the water inlet is linked together with last cooling channel, and the delivery port is linked together with lower cooling.

Preferably, the base is further provided with an air cooling device, the air cooling device is fixed on the base through an air cooling support, the air cooling device comprises an air cooler and an air cooling cover, and an air outlet is formed in the air cooling cover.

Preferably, the air cooling support is fixed on the base through a first screw and a second screw, and an arc groove is formed in one side, located on the second screw, of the air cooling support.

The utility model discloses an gain effect: the utility model discloses a 3D printer ejection of compact system for nozzle, be provided with cooling device, can cool off the upper end of ejection of compact pipeline through cooling device, reduce blocking phenomenon's emergence, the fault rate has been reduced, be provided with wind cooling plant in nozzle position department in addition, set up through the forced air cooling plant, when the nozzle extrudes the material, can cool off the nozzle, nozzle position department jam condition appearance has been reduced, still can cool off the material that nozzle department extruded in addition, reach the material and extrude the quick refrigerated effect of back, the production efficiency is improved.

Drawings

The invention will be further described with reference to the following figures and examples:

fig. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is an external view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

FIG. 4 is a partial enlarged view of FIG. 1 at B;

FIG. 5 is an enlarged view of a portion of FIG. 1 at C;

in the figure: 1 motor, 2 feeding storehouses, 201 discharge gate, 3 shaft couplings, 4 screws, 401 light parts, 402 spiral parts, 5 discharge pipelines, 501 supporting parts, 502 discharge parts, 503 feed inlets, 504 external threads, 6 air cooling supports, 601 screw I, 602 screw II, 603 arc grooves, 7 bearings, 8 sleeves, 801 water inlets, 802 water outlets, 9 radiating rings, 901 upper cooling channels, 902 lower cooling channels, 903 communication holes, 10 nozzles, 1001 spray holes, 11 bases, 12 air cooling devices, 1201 air coolers, 1202 air cooling hoods, 1203 air outlets, 13 heating devices, 1301 left heating blocks, 1302 right heating blocks, 14 motor mounting plates, 15 connecting columns and 16 fixing frames.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

In this embodiment, as shown in the figure, the discharging system for the nozzle of the 3D printer provided in this embodiment includes a motor 1, a screw 4, a nozzle 10, a feeding bin 2, and a base 11, where the motor 1 is fixed on a motor mounting plate 14, a lower end surface of the motor mounting plate 14 is connected to a fixing frame 16 through a connecting column 15, the fixing frame 16 is fixed on the base 11 through the screw 4, a discharging pipe 5 is fixed below the fixing frame 16 through a screw, an external thread 504 is provided on a cylindrical surface of the discharging pipe 5 at a position far from the fixing frame 16, the external thread 504 is connected to the nozzle 10 in a threaded manner, the nozzle 10 is used for extruding materials, an output shaft of the motor 1 is connected to the screw 4 through a coupling 3, the screw 4 vertically extends downwards into the discharging pipe 5, the discharging pipe 5 includes a supporting portion 501 and a discharging portion 502 that are integrally designed, the screw 4 includes a light portion 401 and a spiral portion 402, the light part 401 is supported in the supporting part 501 of the discharging pipeline 5 through a bearing 7, the uppermost part of the discharging part 502 is provided with a feeding hole 503, the feeding hole 503 is in an open design with a large upper part and a small lower part and is communicated with the discharging hole 201 of the feeding bin 2, the feeding bin 2 stores materials which are plastic particles in the embodiment, the large diameter of the screw thread of the spiral part 402 is in intermittent fit with the inner hole of the discharging pipeline 5, the nozzle 10 is provided with a spraying hole 1001, when the nozzle 10 is completely screwed on the discharging pipeline 5, a gap of 3-5MM is left between the lower end surface of the spiral part 402 and the upper end surface of the spraying hole 1001, the gap is used for temporarily storing the materials conveyed by the screw 4, in order to melt the plastic particles, the position of the discharging pipeline 5 close to the nozzle 10 is provided with a heating device 13, the heating device 13 melts the materials in the discharging pipeline 5, the heating device 13 comprises a left heating block 1301 and a right heating block 1302, a left heating block 1301 and a right heating block 1302 are disposed in the discharge duct 5 near the nozzle 10.

In order to cool the upper end of the discharge pipeline 5 and reduce the occurrence of blockage, in this embodiment, a cooling device is disposed below the discharge pipeline 5 near the feed inlet 503, the cooling device includes three heat dissipation rings 9 and a sleeve 8, wherein the heat dissipation ring 9 located in the middle is provided with a communication hole 903, the heat dissipation ring 9 is disposed on the outer ring of the discharge pipeline 5 and is integrated with the discharge pipeline 5, the sleeve 8 is hermetically sleeved on the outer side of the heat dissipation ring 9 and forms a cooling channel with the heat dissipation ring 9, the cooling channel includes an upper cooling channel 901 and a lower cooling channel 902, the upper cooling channel 901 and the lower cooling channel 902 are communicated through the communication hole 903, the sleeve 8 is provided with a water inlet 801 and a water outlet 802, the water inlet 801 and the water outlet 802 are connected with an external circulating water pump and a cooling water tank, and the water inlet 801 is communicated with the upper cooling channel 901, the water outlet 802 is communicated with the lower cooling channel 902, and the upper end of the discharge pipeline 5 can be cooled by an external circulating water pump and a cooling water tank.

Further, still be provided with air cooling unit 12 on the base 11, air cooling unit 12 passes through air-cooled support 6 to be fixed on base 11, air cooling unit 12 package air-cooler 1201 and cold wind cover 1202, it has air outlet 1203 to open on the cold wind cover 1202, set up through air cooling unit 12, when nozzle 10 extrudes the material, can cool off nozzle 10, reduced nozzle 10 position department jam condition appearance, but the material of extrusion of cooling nozzle 10 department in addition, reach the material and extrude the quick refrigerated effect of back, and the production efficiency is improved.

Further, in order to adjust the angle of the air outlet 1203, the air-cooled bracket 6 of this embodiment is fixed on the base 11 through the first screw 601 and the second screw 602, an arc groove 603 is formed on one side of the air-cooled bracket 6, which is located on the second screw 602, and the air-cooled bracket 6 can rotate around the first screw 601 through the design of the arc groove 603, so as to further complete the adjustment of the angle of the air outlet 1203.

The working process is as follows: when the plastic particle feeder works, the motor 1 rotates to drive the screw rod 4 to rotate, the screw rod 4 rotates to drive the plastic particles in the feeding bin 2 to be conveyed into the discharging pipeline 5 through the spiral groove in the screw rod 4, and when the plastic particles pass through the heating device 13, the heating device 13 heats and melts the plastic particles and the plastic particles are sprayed out from the spray hole 1001 of the nozzle 10.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a 3D printer discharge system for nozzle which characterized in that: comprises a motor (1), a screw rod (4), a nozzle (10), a feeding bin (2) and a base (11), wherein the motor (1) is fixed on a motor mounting plate (14), the lower end face of the motor mounting plate (14) is connected with a fixing frame (16) through a connecting column (15), the fixing frame (16) is fixed on the base (11) through screws, a discharge pipeline (5) is fixed below the fixing frame (16) through screws, an external thread (504) is arranged on a cylindrical surface of one end of the discharge pipeline (5) far away from the fixing frame (16), the nozzle (10) is in threaded connection with the section of the external thread (504), a heating device (13) is arranged at the position of the discharge pipeline (5) close to the nozzle, an output shaft of the motor (1) is connected with the screw rod (4) through a coupler (3), the screw rod (4) vertically and downwards extends into the discharge pipeline (5), the discharge pipeline (5) comprises a supporting part (501) and a discharge part (502) which are integrally designed, the screw rod (4) comprises a light part (401) and a spiral part (402), the light part (401) is supported in a supporting part (501) of the discharging pipeline (5) through a bearing (7), a feeding hole (503) is formed in the top of the discharging part (502), the feeding hole (503) is in an open design with a large upper part and a small lower part and is communicated with a discharging hole (201) of the feeding bin (2), the thread diameter of the spiral part (402) is in intermittent fit with an inner hole of the discharging pipeline (5), the nozzle (10) is provided with a nozzle hole (1001), and when the nozzle (10) is completely screwed on the discharging pipeline (5), a gap of 3-5MM is reserved between the lower end face of the spiral part (402) and the upper end face of the nozzle hole (1001).

2. The discharge system for the nozzle of the 3D printer as claimed in claim 1, wherein: the heating device (13) comprises a left heating block (1301) and a right heating block (1302), and the left heating block (1301) and the right heating block (1302) are arranged at the position, close to the nozzle (10), of the discharging pipeline (5).

3. The discharge system for the nozzle of the 3D printer as claimed in claim 1, wherein: the cooling device is arranged below the discharge pipeline (5) close to the feed inlet (503) and comprises three sleeves (8) and three heat dissipation rings (9), wherein the heat dissipation ring (9) positioned in the middle is provided with a communication hole (903), the heat dissipation rings (9) are arranged on the outer ring of the discharge pipeline (5) and adopt an integrated design with the discharge pipeline (5), the sleeves (8) are hermetically sleeved on the outer sides of the heat dissipation rings (9) and form a cooling channel with the heat dissipation rings (9), the cooling channel comprises an upper cooling channel (901) and a lower cooling channel (902), the upper cooling channel (901) and the lower cooling channel (902) are communicated through the communication hole (903), the sleeves (8) are provided with a water inlet (801) and a water outlet (802), and the water inlet (801) is communicated with the upper cooling channel (901), the water outlet (802) is communicated with the lower cooling channel (902).

4. The discharge system for the nozzle of the 3D printer as claimed in claim 1, wherein: the air cooling device (12) is further arranged on the base (11), the air cooling device (12) is fixed on the base (11) through the air cooling support (6), the air cooling device (12) comprises an air cooler (1201) and an air cooling cover (1202), and an air outlet (1203) is formed in the air cooling cover (1202).

5. The discharge system for the nozzle of the 3D printer according to claim 4, wherein: the air cooling support (6) is fixed on the base (11) through a first screw (601) and a second screw (602), and an arc groove (603) is formed in one side, located on the second screw (602), of the air cooling support (6).