CN112060583A

CN112060583A - Be used for FDM formula 3D printer consumptive material connecting device and 3D printing apparatus

Info

Publication number: CN112060583A
Application number: CN202011030222.XA
Authority: CN
Inventors: 张娉; 刘啸林
Original assignee: Huaibei Jingqin Information Technology Co ltd
Current assignee: Huaibei Jingqin Information Technology Co ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2020-12-11

Abstract

The invention discloses a consumable connecting device for an FDM type 3D printer and 3D printing equipment, which comprise a base, a fixed box body and a movable box body, wherein one end of the base is provided with the fixed box body, the other end of the base is provided with a sliding mechanism, the sliding mechanism is provided with the movable box body, heating connecting devices are arranged inside the fixed box body and the movable box body, the outer side wall of the fixed box body is provided with a current adjusting device, two ends of the fixed box body and the movable box body are provided with guide cavities, guide mechanisms are arranged in the guide cavities, and heat dissipation cavities are arranged at the upper ends of the fixed box body and the movable box body; the device can quickly heat the consumable materials, can realize different heating temperatures, is suitable for heating the consumable materials made of various materials, can be directly installed and connected on the advancing track of the consumable material of the wire, cannot influence the feeding effect of the wire, can accelerate the cooling of the consumable materials, and is simple to use and convenient to operate.

Description

Be used for FDM formula 3D printer consumptive material connecting device and 3D printing apparatus

Technical Field

The invention relates to the technical field of 3D printing equipment, in particular to a consumable connecting device for an FDM type 3D printer and 3D printing equipment.

Background

With the development of science and technology, 3D printing technology has been developed in recent years, and it integrates many technical knowledge in digital modeling technology, information engineering technology, material science and chemistry, mechanical structure technology, etc., and is applied to various work fields more and more, wherein the FDM type 3D printer is used more and more widely due to its advantages of simple system structure principle and operation, low maintenance cost, safe system operation, etc., and the FDM type 3D printer has high raw material utilization rate and long material life, and the FDM material is generally thermoplastic material, such as wax, ABS, nylon, etc., and is supplied in filament form, and the material is heated and melted in the nozzle, and the nozzle moves along the section contour and filling track of the part, and extrudes the melted material, and the material is rapidly solidified and coagulated with the surrounding material.

Two sections material silks of current FDM formula 3D printer are being connected often use the manual work to heat two sections consumptive materials and melt and link, then are maintained through the cutter, and application number "201610488811. X" discloses an FDM3D printer consumptive material connecting device, heats through fixing two sections consumptive materials and connects, but still has following not enoughly: 1. when the connection is carried out, a heating source needs to be provided externally, and different materials need to be melted at different temperatures, which is very troublesome; 2. after the consumable connection is finished, the connection device needs to be detached, so that the consumable connection device cannot be used continuously, and the connection efficiency is low; 3. the connection device is not provided with a heat dissipation device, natural cooling and shaping are needed after connection is finished, the cooling efficiency is low, and the connection use time is long; 4. the use is loaded down with trivial details, need connect each part when using, can't see the position of consumptive material when inserting the consumptive material from first passageway and second passageway moreover, does not appear easily when connecting that there is not butt problem together.

Disclosure of Invention

The invention aims to provide a consumable connecting device for an FDM type 3D printer, which is used for solving the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a consumable connecting device for an FDM type 3D printer comprises a base, a fixed box body and a movable box body, wherein the fixed box body is installed at one end of the base, the sliding mechanism is arranged at the other end of the base, the movable box body is installed on the sliding mechanism, a heating connecting device is installed inside the fixed box body and the movable box body, a current adjusting device is installed on the outer side wall of the fixed box body and is electrically connected with the heating connecting device, guide cavities are formed in two ends of the fixed box body and the movable box body and are communicated with the heating connecting device, a guide mechanism is installed in the guide cavities, heat dissipation cavities are formed in the upper ends of the fixed box body and the movable box body, a heat dissipation device is fixed in the heat dissipation cavity in the upper end of the fixed box body, the heat dissipation device is clamped in the heat dissipation cavities, and a, and the upper ends of the fixed box body and the movable box body are provided with fixed screw rods, and the bottoms of the fixed screw rods are positioned in the guide cavities.

Preferably, the fixed box body and the movable box body are provided with guiding devices, each guiding device comprises a guiding rod and a guiding hole, the guiding rods are fixed on the fixed box body, the movable box body is internally provided with the guiding holes, and the guiding rods are installed in the guiding holes.

Preferably, slide mechanism includes slip track, spout and limit button, the up end of base is provided with the slip track, the bottom surface of removal box is provided with the spout, the slip track card is in the inside of spout, the inside of slip track is fixed with limit button, inside being provided with of spout with limit button assorted recess.

Preferably, the upper ends of the fixed box body and the movable box body are provided with proximity switches, and the proximity switches are connected in series on a connecting circuit of the current regulating device and the heating connecting device.

Preferably, the cutting assembly comprises a cutter base, a movable cutter frame, a blade assembly, a cutting chute and a base plate, the cutter base is installed on the fixed box body, the movable cutter frame is fixed on the cutter base, the cutting chute is formed in the movable cutter frame, the blade assembly is clamped in the cutting chute, the base plate is arranged on the surface of the cutter base below the blade assembly, a reset spring is fixed between the blade assembly inside the cutting chute and the cutter base, and the surface of the base plate is provided with a cutting groove for accommodating the blade assembly and the printing filament.

Preferably, guiding mechanism comprises guide bracket, direction runner, installation pole, adjusting spring and bellows, a guide bracket is respectively installed at direction runner both ends, the installation pole is installed in the one end outside of keeping away from the direction runner on the guide bracket, the installation pole card is on the inside wall of direction cavity, the upper and lower both ends of guide bracket are fixed with adjusting spring, adjusting spring's the other end supports on the inside wall of direction cavity, bellows cover is on adjusting spring.

Preferably, the heating connection device comprises a connection heat pipe, a heating metal plate and a heat insulation layer, the heating metal plate is attached to the outside of the connection heat pipe, the heating metal plate is electrically connected with the current adjusting device, and the heat insulation layer is wrapped on the outside of the heating metal plate.

Preferably, the fixed box and the heating metal plate inside the movable box are connected in series, and the space between the heating metal plate and the heat conduction pipe is filled with heat conduction sand.

Preferably, the heat dissipation device includes a heat dissipation metal plate and a heat dissipation fan, the heat dissipation metal plate is disposed inside the heat dissipation cavity, and the heat dissipation fan is mounted on the surface of the heat dissipation metal plate.

The invention also discloses FDM type 3D printing equipment, wherein the 3D printing equipment comprises the 3D printer consumable connecting device, the 3D printer consumable connecting device is arranged at the feeding position of the 3D printing equipment, and other systems of the 3D printing equipment are obtained according to the prior art.

Compared with the prior art, the invention has the beneficial effects that:

(1) the heating metal plate is adopted for heating and conducting the heating metal plate to the connecting heat conduction pipe, so that consumable materials can be quickly heated, different heating temperatures are realized by controlling the current flowing through the heating metal plate, and the consumable materials made of various materials can be heated;

(2) the device can be directly and rigidly installed and connected on the advancing track of the wire consumable material, can be continuously used, cannot influence the feeding efficiency of the wire when the consumable material is not connected, and the guide mechanism can also play a good role in supporting and guiding the wire in feeding;

(3) the connected consumables can be quickly cooled through the cooling device, so that the consumables and the heating connecting device are quickly cooled, the connected consumables are quickly solidified and shaped, and the connecting efficiency is improved;

(4) directly twist when fixed consumptive material move the clamping screw can, still can use cutting assembly to prune the consumptive material tip, simple to use, convenient operation to remove the slip that the box can be free, can observe the position and the condition of consumptive material tip before connecting, be convenient for let two sections consumptive materials contradict together when connecting, improve the success rate of connecting.

Drawings

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

FIG. 2 is an exploded view of the overall structure of the present invention;

FIG. 3 is a schematic cross-sectional view of a guide cavity of the present invention;

FIG. 4 is a schematic structural view of a guide mechanism of the present invention;

FIG. 5 is a schematic view of a heating connection device according to the present invention;

FIG. 6 is a schematic view of a cutting assembly according to the present invention;

FIG. 7 is a schematic view of the overall structure of the connected material filaments;

FIG. 8 is a schematic overall view of the present invention;

in the figure: 1 base, 2 fixed boxes, 3 movable boxes, 4 sliding mechanisms, 401 sliding tracks, 402 sliding grooves,

limit buttons

403, 5 heating connecting devices, 501 connecting heat pipes, 502 heating metal plates, 503 heat insulation layers, 6 current adjusting devices, 7 guiding cavities, 8 guiding mechanisms, 801 guiding supports, 802 guiding rotating wheels, 803 mounting rods, 804 adjusting springs, 805 corrugated pipes, 9 heat dissipation cavities, 10 heat dissipation devices, 1001 heat dissipation metal plates, 1002 heat dissipation fans, 11 guiding devices, 1101 guiding rods, 1102 guiding holes, 12 proximity switches, 13 cutting assemblies, 1301 cutter bases, 1302 movable cutter holders, 1303 blade assemblies, 1304 cutting sliding grooves, 1305 cushion plates, 14 fixing screws and 15 consumables.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, a consumable connecting device for an FDM type 3D printer includes a base 1, a fixed box 2 and a movable box 3, the fixed box 2 is installed at one end of the base 1, a sliding mechanism 4 is installed at the other end of the base 1, the movable box 3 is installed on the sliding mechanism 4, the sliding mechanism 4 includes a sliding track 401, a sliding slot 402 and a limit button 403, the upper end surface of the base 1 is provided with the sliding track 401, the bottom surface of the movable box 3 is provided with the sliding slot 402, the sliding track 401 is clamped inside the sliding slot 402, the movable box 3 can move along the sliding track 401, the limit button 403 is arranged on the sliding track 401, the limit button protrudes out of the surface of the sliding track 401 and is clamped inside the sliding track 401, the bottom of the limit button 403 is provided with a spring to enable the limit button 403 to move up and down, the inside recess that is provided with and limit button 403 assorted of spout 402, limit button 403 card is inside the recess and can carry out the back-and-forth movement inside the recess, the length of recess slightly is less than the length of spout 402, thereby prevent effectively that removal box 3 from dropping on slip track 401, can see the consumptive material at the inside condition of heating connecting device 5 after fixed box 2 separates with removal box 3, thereby can observe the position and the condition of consumptive material 15 tip before connecting, be convenient for let two sections consumptive materials 15 contradict together when connecting, improve the success rate of connecting.

The fixed box body 2 and the movable box body 3 are provided with a guiding device 11, the guiding device 11 comprises a guiding rod 1101 and a guiding hole 1102, the guiding rod 1101 is fixed on the fixed box body 2, the movable box body 3 is provided with the guiding hole 1102, the guiding rod 1101 is installed in the guiding hole 1102, when the fixed box body 2 and the movable box body 3 are connected together, the guiding rod 1101 contracts along the direction of the guiding hole 1102, so that the attaching accuracy of the fixed box body 2 and the movable box body 3 is higher, the staggered height of the two sections of heating connecting devices 5 after attaching is prevented, the surface of the connected consumable 15 is smoother, the heating connecting devices 5 are installed inside the fixed box body 2 and the movable box body 3, the heating connecting devices 5 comprise connecting heat pipes 501, heating metal plates 502 and a heat insulation layer 503, and the heating metal plates 502 are electrically connected with the current adjusting device 6, the heating metal plate 502 is attached to the outside of the connecting heat pipe 501, the heating metal plate 502 generates heat after being electrified and transmits the heat to the connecting heat pipe 501, so that the consumable 15 inside the connecting heat pipe 501 is melted, the required temperature can be reached in a short time due to short heating time of electric heating, the consumable 15 can be rapidly heated, the heat insulation layer 503 is wrapped on the outside of the heating metal plate 502 to prevent the heat generated by the heating metal plate 502 from being dissipated to the outside, the heating efficiency is improved, the space between the heating metal plate 502 and the heat pipe 501 is filled with the heat conduction sand 504, the heat conduction sand 504 allows no gap to exist between the heating metal plate 502 and the heat pipe 501, the heat conduction efficiency between the heating metal plate 502 and the heat pipe 501 is improved, the current adjusting device 6 is installed on the outer side wall of the fixed box 2, and the current adjusting device 6 is electrically connected with the heating connecting device 5, current adjustment device 6, current adjustment device 6 are the transformer of auto-coupling, adjust the electric current that heating metal sheet 502 passes through regulating voltage, according to the joule law to change the produced heat of heating metal sheet 502, realize the different heating temperature of heat pipe 501, can be according to the demand, to different material regulation temperature, be fit for heating the consumptive material 15 of various materials.

The two ends of the fixed box body 2 and the movable box body 3 are provided with guide cavities 7, the guide cavities 7 are communicated with the heating connecting device 5, guide mechanisms 8 are installed in the guide cavities 7, each guide mechanism 8 is composed of a guide support 801, a guide rotating wheel 802, an installation rod 803, an adjusting spring 804 and a corrugated pipe 805, the two ends of each guide rotating wheel 802 are respectively provided with one guide support 801, the guide rotating wheels 802 can freely rotate, the consumable 15 filament for 3D printing passes through the guide rotating wheels 802 to reduce the moving resistance, the guide rotating wheels 802 are drum-shaped, the middle of each guide rotating wheel 802 is provided with a groove, the consumable 15 is clamped at the groove and can well support and guide the consumable 15 filament in the feeding, the installation rod 803 is installed on the outer side of one end, far away from the guide rotating wheels 802, of the guide supporting frames 801, the installation rod 803 is clamped on the inner side wall, the upper and lower both ends of guide bracket 801 are fixed with adjusting spring 804, adjusting spring 804's the other end supports on the inside wall of direction cavity 7, and guide bracket 801 can rotate round installation pole 803, and reset under adjusting spring 804's effect, thereby deal with different bending angle and not equidirectional consumptive material 15 stockings, can not influence the feeding efficiency of stockings when not carrying out consumptive material 15 and connecting, and let more smooth and easy that consumptive material 15 marchd, bellows 805 is installed in the inboard of guide bracket 801, bellows 805 cover is on adjusting spring 804, prevents that consumptive material 15 and adjusting spring 804 from contacting, avoids the stockings card inside adjusting spring 804.

The upper ends of the fixed box body 2 and the movable box body 3 are provided with a heat dissipation cavity 9, a heat dissipation device 10 is fixed in the heat dissipation cavity 9 at the upper end of the fixed box body 2, the heat dissipation device 10 is clamped in the heat dissipation cavity 9, the heat dissipation device 10 comprises a heat dissipation metal plate 1001 and a heat dissipation fan 1002, the heat dissipation metal plate 1001 is arranged inside the heat dissipation cavity 9, the heat dissipation fan 1002 is installed on the surface of the heat dissipation metal plate 1001, the heat dissipation metal plate 1001 is high in heat conduction coefficient due to the relation of materials, and can absorb a large amount of heat for heating the metal plate 502 and the heat conduction pipe 501 from the upper ends of the fixed box body 2 and the movable box body 3, the heat dissipation fan 1002 improves the heat conduction efficiency, and rapidly cools the heat dissipation metal plate 1001, so that the connected consumable 15 can be rapidly dissipated heat, the cooling of the consumable 15 and the heating connection device 5, And (5) shaping is performed, and the connection efficiency is improved.

The upper ends of the fixed box body 2 and the movable box body 3 are provided with a fixed screw 14, the bottom of the fixed screw 14 is positioned in the guide cavity 7, the fixed screw 14 can rotate so as to lift in the fixed box body 2 and the movable box body 3, the fixed screw 14 can not obstruct the movement of the consumable 15 when rotating upwards, the consumable 15 can be fixed when connecting when rotating downwards so as to prevent the movement in the connecting process, the upper end of the fixed box body 2 is provided with a cutting assembly 13, the cutting assembly 13 comprises a cutter base 1301, a movable cutter frame 1302, a cutter assembly 1303, a cutting chute 1304 and a cushion plate 1305, the cutter base 1301 is arranged on the fixed box body 2, the movable cutter frame 1302 is fixed on the cutter base 1301, the cutting chute 1304 is arranged on the movable cutter frame 1302, the cushion plate 1305 is arranged on the surface of the cutter base 1301 below the cutter assembly 1303, and the cutter assembly 1303 is composed of a, blade subassembly 1303 is blocked in cutting spout 1304, and blade subassembly 1303 can remove along cutting spout 1304, cuts the 15 material silks of consumptive material of placing on backing plate 1305, makes its terminal surface level and smooth, connects easily, be fixed with reset spring between inside blade subassembly 1303 of cutting spout 1304 and the cutter base 1301, reset spring can push down the cutting back at blade subassembly 1303 and reset it, makes things convenient for cutting next time, backing plate 1305 surface is provided with the cutting cut groove that holds blade subassembly 1303 and print the material silk, cuts the convenient fixed 15 material silks of consumptive material in cutting cut groove, prevents that it from sliding, easily cutting.

The heating metal plates 502 in the fixed box body 2 and the movable box body 3 are connected in series, the two heating metal plates 502 are used as electrified conductors and heating devices, when the fixed box body 2 and the movable box body 3 are separated, the two heating metal plates 502 are separated, a heating circuit of the heating metal plates 502 is in a broken circuit state and cannot be heated, the proximity switch 12 is installed at the upper ends of the fixed box body 2 and the movable box body 3, the proximity switch 12 is connected between the current adjusting device 6 and the heating connecting device 5 in series, when the fixed box body 2 and the movable box body 3 are separated, the proximity switch 12 is in an open circuit state, and when the fixed box body 2 and the movable box body 3 are connected, the proximity switch 12 is closed, so that the heating circuits of the fixed box body 2 and the movable box body 3 can be effectively prevented from being started, misoperation can be.

Specifically, when in use, firstly, the cutting component 13 is used for cutting the end faces of the consumables to be connected flatly, then the fixed box body 2 and the movable box body 3 are separated, one section of the consumables 15 penetrates into the heating connecting device 5 from the guide cavity 7 of the fixed box body 2, the other section of the consumables 15 penetrates into the heating connecting device 5 from the guide cavity 7 of the movable box body 3, the position of the end face of the consumables 15 is observed and adjusted, the fixing screw 14 is rotated downwards to enable the lower end of the consumables 15 to abut against the consumables 15 to fix the consumables 15, then the movable box body 3 is pushed to connect the fixed box body 2 with the movable box body 3, the current adjusting device 6 is adjusted to enable the heating metal plate 502 to start heating, the connecting heat pipe 501 is connected to heat up to enable the consumables 15 to be connected at the contacted end faces, the current adjusting device 6 is closed after melting, the heat, after solidification, the whole is formed, and the connected consumable 15 can be drawn out by loosening the fixing screw 14.

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 be used for FDM formula 3D printer consumptive material connecting device which characterized in that: comprises a base (1), a fixed box body (2) and a movable box body (3), wherein the fixed box body (2) is installed at one end of the base (1), a sliding mechanism (4) is arranged at the other end of the base (1), the movable box body (3) is installed on the sliding mechanism (4), a heating connecting device (5) is installed inside the fixed box body (2) and the movable box body (3), a current adjusting device (6) is installed on the outer side wall of the fixed box body (2), the current adjusting device (6) is electrically connected with the heating connecting device (5), guide cavities (7) are arranged at two ends of the fixed box body (2) and the movable box body (3), the guide cavities (7) are communicated with the heating connecting device (5), a guide mechanism (8) is installed in the guide cavities (7), and heat dissipation cavities (9) are arranged at the upper ends of the fixed box body (2) and the movable box body (3), the heat dissipation device is characterized in that a heat dissipation device (10) is fixed in a heat dissipation cavity (9) in the upper end of the fixing box body (2), the heat dissipation device (10) is clamped in the heat dissipation cavity (9), a cutting assembly (13) is installed in the upper end of the fixing box body (2), a fixing screw rod (14) is arranged at the upper ends of the fixing box body (2) and the moving box body (3), and the bottom of the fixing screw rod (14) is located in the guide cavity (7).

2. The device according to claim 1, wherein the consumable connection device is used for FDM type 3D printer: the guide device (11) is arranged on the fixed box body (2) and the movable box body (3), the guide device (11) comprises a guide rod (1101) and a guide hole (1102), the guide rod (1101) is fixed on the fixed box body (2), the guide hole (1102) is formed in the movable box body (3), and the guide rod (1101) is installed in the guide hole (1102).

3. The device according to claim 1, wherein the consumable connection device is used for FDM type 3D printer: slide mechanism (4) are including slip track (401), spout (402) and stop button (403), the up end of base (1) is provided with slip track (401), the bottom surface of removal box (3) is provided with spout (402), slip track (401) card is in the inside of spout (402), the inside of slip track (401) is fixed with stop button (403), spout (402) inside be provided with stop button (403) assorted recess.

4. The device according to claim 1, wherein the consumable connection device is used for FDM type 3D printer: and the upper ends of the fixed box body (2) and the movable box body (3) are provided with proximity switches (12), and the proximity switches (12) are connected in series on a connecting circuit of the current regulating device (6) and the heating connecting device (5).

5. The device according to claim 1, wherein the consumable connection device is used for FDM type 3D printer: the cutting assembly (13) comprises a cutter base (1301), a movable cutter frame (1302), a cutter blade assembly (1303), a cutting chute (1304) and a base plate (1305), wherein the cutter base (1301) is installed on the fixed box body (2), the movable cutter frame (1302) is fixed on the cutter base (1301), the cutting chute (1304) is formed in the movable cutter frame (1302), the cutter blade assembly (1303) is clamped in the cutting chute (1304), the base plate (1305) is arranged on the surface of the cutter base (1301) below the cutter blade assembly (1303), a return spring is fixed between the cutter blade assembly (1303) in the cutting chute (1304) and the cutter base (1301), and the surface of the base plate (1305) is provided with a cutting groove for accommodating the cutter blade assembly (1303) and a printing wire.

6. The device according to claim 1, wherein the consumable connection device is used for FDM type 3D printer: guiding mechanism (8) comprise guide bracket (801), direction runner (802), installation pole (803), adjusting spring (804) and bellows (805), guide bracket (801) is respectively installed at direction runner (802) both ends, install installation pole (803) in the one end outside of keeping away from direction runner (802) on guide bracket (801), installation pole (803) card is on the inside wall of direction cavity (7), the upper and lower both ends of guide bracket (801) are fixed with adjusting spring (804), the other end of adjusting spring (804) supports on the inside wall of direction cavity (7), bellows (805) cover is on adjusting spring (804).

7. The device according to claim 1, wherein the consumable connection device is used for FDM type 3D printer: the heating connecting device (5) comprises a connecting heat pipe (501), a heating metal plate (502) and a heat insulation layer (503), the heating metal plate (502) is attached to the outside of the connecting heat pipe (501), the heating metal plate (502) is electrically connected with the current adjusting device (6), and the heat insulation layer (503) wraps the outside of the heating metal plate (502).

8. The device according to claim 7, wherein the consumable connection device is used for FDM type 3D printer: the heating metal plates (502) in the fixed box body (2) and the movable box body (3) are connected in series, and heat conduction sand (504) is filled in the space between the heating metal plates (502) and the heat conduction pipes (501).

9. The device according to claim 1, wherein the consumable connection device is used for FDM type 3D printer: the heat dissipation device (10) comprises a heat dissipation metal plate (1001) and a heat dissipation fan (1002), the heat dissipation metal plate (1001) is arranged inside the heat dissipation cavity (9), and the heat dissipation fan (1002) is installed on the surface of the heat dissipation metal plate (1001).

10. A3D printing device for FDM type is characterized in that: the 3D printing apparatus comprises the 3D printer consumable connection device of any one of claims 1-9, the 3D printer consumable connection device being installed at a feed of the 3D printing apparatus.