CN214820940U

CN214820940U - A consumptive material preprocessing device for 3D printer

Info

Publication number: CN214820940U
Application number: CN202120846406.7U
Authority: CN
Inventors: 雷捷
Original assignee: Hubei Biyin 3d Technology Co ltd
Current assignee: Hubei Biyin 3d Technology Co ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-11-23
Anticipated expiration: 2031-04-23

Abstract

The utility model provides a consumptive material preprocessing device for 3D printer, including initiative pinch roller and driven pinch roller, driven pinch roller is located the top of initiative pinch roller, one side of initiative pinch roller is provided with U type support, U type support is kept away from the one end lateral wall of initiative pinch roller is fixed with the branch pipe, be provided with the slide pipe in the inner chamber of branch pipe, the surface both ends of slide pipe are fixed with first slip table and second slip table respectively, first slip table with the circumference outside of second slip table all with the inner wall sliding connection of branch pipe, be fixed with on the inner wall of slide pipe and cut the net sword. The utility model discloses well eddy current coil will cut the net sword heating, and the motor promotes the wire rod through initiative pinch roller and driven pinch roller and supports to press and cut the net sword to make the wire rod tentatively soften and cut apart into the multiunit lines by cutting the net sword, the heating melting on next step of being convenient for has improved fused homogeneity.

Description

A consumptive material preprocessing device for 3D printer

Technical Field

The utility model relates to a consumptive material preliminary treatment technical field of 3D printer especially relates to a consumptive material preprocessing device for 3D printer.

Background

3D printing, one of the rapid prototyping technologies, is a technology for constructing an object by using a bondable material such as powdered metal or plastic based on a digital model file and by printing layer by layer. It has been used to manufacture models in the fields of mold manufacturing, industrial design, etc., and is now increasingly used for direct manufacture of some products.

Present 3D prints the printing consumables that uses diversified, to same portion 3D printer, be difficult to according to the difference of printing consumables and corresponding melting temperature who adjusts the printing consumables, it is slow to cause melting efficiency easily, the not good problem of melting effect, if temperature control is improper, produce the inhomogeneous problem of ejection of compact easily during the consumptive material ejection of compact after the melting, effect and printing quality are printed in the influence, and, present consumptive material feeding single structure, not only need artifical feed, still need the manual work to trade the magazine when changing different consumptive materials in addition, consume the manpower.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an overcome above-mentioned problem or solve a consumptive material preprocessing device for 3D printer of above-mentioned problem partially at least to produce the inhomogeneous problem of ejection of compact easily when solving the consumptive material ejection of compact after the melting, influence and print the effect and print the quality, moreover, current consumptive material feeding single structure not only needs artifical feed, still needs the manual work to trade the magazine when changing different consumptive materials moreover, consumes the problem of manpower.

In order to achieve the above object, the technical solution of the present invention is specifically realized as follows:

the utility model provides a consumable pretreatment device for a 3D printer, which comprises a driving pinch roller and a driven pinch roller, wherein the driven pinch roller is positioned above the driving pinch roller, one side of the driving pinch roller is provided with a U-shaped bracket, the side wall of one end of the U-shaped bracket, which is far away from the driving pinch roller, is fixed with a branch pipe, a slide pipe is arranged in the inner cavity of the branch pipe, the two ends of the outer surface of the slide pipe are respectively fixed with a first slide table and a second slide table, the outer sides of the circumferences of the first slide table and the second slide table are respectively in sliding connection with the inner wall of the branch pipe, a slitting net knife is fixed on the inner wall of the slide pipe, a tension spring is fixed between the inner walls of one ends of the first slide table and the branch pipe, which are close to the driving pinch roller, a vortex coil is nested in the outer wall of the branch pipe, and a wire is laminated between the driving pinch roller and the driven pinch roller, one end of the wire rod is inserted into the sliding pipe.

As a further scheme of the utility model, U type support is close to the spout has been seted up to the one end of driven pinch roller, the one end pivot of driven pinch roller is rotated and is connected with the slider, the slider slides nestedly in the inner wall of spout, the top surface of slider with be fixed with pressure spring between the roof of spout.

As a further scheme of the utility model, the one end pivot of initiative pinch roller is run through the lateral wall and the end of U type support are fixed with the fluted disc, the one end pivot of initiative pinch roller with the lateral wall of U type support rotates to be connected, the below of fluted disc is provided with the motor, the motor with the lateral wall fixed connection of U type support, the output shaft end of motor is fixed with the gear, the gear with the fluted disc meshing is connected.

As a further aspect of the present invention, the branch pipe is close to the one end of the active pinch roller is fixed with a guide pipe, the one end of the guide pipe extends to the inside of the branch pipe, the guide pipe is in a horn mouth shape.

As a further aspect of the present invention, the driving pinch roller and the circumference of the driven pinch roller are concave, the driving pinch roller and the circumference of the driven pinch roller are carved with strip-shaped lines.

As a further scheme of the utility model, the cross-section of cutting the net sword is network structure and is close to tension spring's one end has been seted up the sword angle, cut the net sword and adopted the metal material, the branch pipe first slip table the second slip table with the slide pipe all adopts high temperature resistance non-metal material.

As a further aspect of the present invention, the motor is a variable frequency motor, the third length of the slitting net knife is located in the inner region of the eddy current coil.

The utility model provides a consumptive material preprocessing device for 3D printer, beneficial effect lies in:

1. the utility model discloses in through motor, initiative pinch roller and the driven pinch roller that sets up, the motor drives the gear rotation, gear engagement fluted disc to it is rotatory to drive the initiative pinch roller, and initiative pinch roller and driven pinch roller support the surface of pressing the wire rod mutually, utilize frictional force to promote the wire rod and support to press and cut the net sword, play the transport effect.

2. The utility model discloses in through slider, compression spring and the driven pinch roller that sets up, compression spring supports through self elasticity and presses the slider to drive driven pinch roller and compress tightly the wire rod surface, and the convenience carries out the centre gripping to the wire rod of different diameters and carries.

3. The utility model discloses in through cutting net sword, the vortex coil that sets up, when the material of wire rod is harder, the wire rod extrusion is cut the net sword and is driven the slide pipe and remove and tensile tension spring through first slip table and second slip table along the inner wall of branch pipe for it is longer to cut the length that the net sword enters into vortex coil inner zone, thereby produces more heats, makes to cut net sword surface temperature and risees, has improved the effect of preheating to the wire rod.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front perspective view provided by an embodiment of the present invention;

fig. 2 is a perspective cross-sectional view of a branch pipe according to an embodiment of the present invention;

fig. 3 is a rear perspective view provided by an embodiment of the present invention;

fig. 4 is a right perspective view provided by an embodiment of the present invention;

fig. 5 is an enlarged view of a point a in fig. 4 according to an embodiment of the present invention.

In the figure: 1. an active pinch roller; 2. a driven pinch roller; 3. a U-shaped bracket; 4. a branch pipe; 5. a slide pipe; 6. a first sliding table; 7. a second sliding table; 8. cutting a net knife; 9. a tension spring; 10. an eddy current coil; 11. a wire rod; 12. a chute; 13. a slider; 14. a pressure spring; 15. a fluted disc; 16. a motor; 17. a gear; 18. a guide tube.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

As shown in fig. 1-5, the consumable pretreatment device for a 3D printer of this embodiment includes a driving pinch roller 1 and a driven pinch roller 2, the driven pinch roller 2 is located above the driving pinch roller 1, a U-shaped bracket 3 is disposed on one side of the driving pinch roller 1, a branch pipe 4 is fixed on a side wall of one end of the U-shaped bracket 3 away from the driving pinch roller 1, a slide pipe 5 is disposed in an inner cavity of the branch pipe 4, a first sliding table 6 and a second sliding table 7 are respectively fixed on two ends of an outer surface of the slide pipe 5, outer sides of circumferences of the first sliding table 6 and the second sliding table 7 are slidably connected with an inner wall of the branch pipe 4, a slitting net knife 8 is fixed on the inner wall of the slide pipe 5, a tension spring 9 is fixed between inner walls of one ends of the first sliding table 6 and the branch pipe 4 close to the driving pinch roller 1, an eddy current coil 10 is nested inside an outer wall of the branch pipe 4 close to the second sliding table 7, a wire 11 is fitted between the driving pinch roller 1 and the driven pinch roller 2, one end of a wire 11 is inserted into the slide pipe 5, when in use, the eddy current coil 10 is electrified to heat the slitting net knife 8, the driving pinch roller 1 and the driven pinch roller 2 rotate to drive the wire 11 to move towards the branch pipe 4 and extrude the slitting net knife 8, the wire 11 is cut into a plurality of groups of lines to pass through the slitting net knife 8 under the cutting action of the slitting net knife 8, meanwhile, the slitting net knife 8 plays a role in heating and softening the strands, carries out pretreatment for further heating and melting, improves the uniformity after melting, when the material of the wire 11 is hard, the wire 11 extrudes the slitting net knife 8 to drive the sliding pipe 5 to move along the inner wall of the branch pipe 4 through the first sliding table 6 and the second sliding table 7 and stretch the tension spring 9, so that the length of the slitting net knife 8 entering the inner area of the eddy current coil 10 is longer, thereby generating more heat, raising the surface temperature of the slitting net knife 8 and improving the preheating effect on the wire 11.

As shown in fig. 3, the one end that U type support 3 is close to driven pinch roller 2 has seted up spout 12, and driven pinch roller 2's one end pivot is rotated and is connected with slider 13, and slider 13 slides and nests in the inner wall of spout 12, is fixed with pressure spring 14 between slider 13's the top surface and the roof of spout 12, and pressure spring 14 supports through self elasticity and presses slider 13 to drive driven pinch roller 2 and compress tightly wire rod 11 surface, and the convenience carries out the centre gripping to the wire rod of different diameters.

As shown in fig. 1, 3, 4, the one end pivot of initiative pinch roller 1 runs through the lateral wall of U type support 3 and the end is fixed with fluted disc 15, the one end pivot of initiative pinch roller 1 rotates with the lateral wall of U type support 3 to be connected, the below of fluted disc 15 is provided with motor 16, motor 16 and the lateral wall fixed connection of U type support 3, the output shaft end of motor 16 is fixed with gear 17, gear 17 is connected with the meshing of fluted disc 15, motor 16 drives the rotation of gear 17, gear 17 meshes fluted disc 15, and it is rotatory to drive initiative pinch roller 1, initiative pinch roller 1 and driven pinch roller 2 support the surface of pressing wire rod 11 each other, utilize frictional force to promote wire rod 11 and support and press net knife 8, play the transport effect.

As shown in fig. 1-3, a guide tube 18 is fixed at one end of the branch tube 4 close to the active pinch roller 1, one end of the guide tube 18 extends into the branch tube 4, the guide tube 18 is in a bell mouth shape, and the inner surface of the guide tube 18 is smooth and plays a smooth guiding role, so that the wires 11 can uniformly enter the inside of the slide tube 5.

As shown in fig. 1, 3 and 4, the circumference of the driving pinch roller 1 and the driven pinch roller 2 is concave, so that the surface of the wire rod 11 is attached, the contact area between the surface of the wire rod 11 and the circumference of the driving pinch roller 1 and the circumference of the driven pinch roller 2 are increased, friction force is improved, strip-shaped lines are carved on the circumference of the driving pinch roller 1 and the circumference of the driven pinch roller 2, the surface of the wire rod 11 and the circumference of the driving pinch roller 1 and the circumference of the driven pinch roller 2 are prevented from slipping, and conveying efficiency is improved.

As shown in fig. 2, 4, 5, the cross-section of cutting net sword 8 is network structure and has been close to tension spring 9's one end and has seted up the sword angle, the sword angle plays the effect of cutting wire rod 11, cut net sword 8 and adopt metal material, branch pipe 4, first slip table 6, second slip table 7 and slide pipe 5 all adopt high temperature resistance non-metal material, metal material can produce the vortex effect in vortex coil 10, make metal material spontaneous production of heat, play and add the heating effect to wire rod 11, this is prior art, no longer detail.

As shown in fig. 1-5, the motor 16 is a variable frequency motor, which facilitates adjusting the conveying speed according to the material characteristics of the wire 11, and one third of the length of the slitting net knife 8 is located in the inner area of the eddy current coil 10, so that the slitting net knife 8 can automatically adjust the length extending into the eddy current coil 10 according to the hardness of the wire 11, and the softening effect is automatically improved.

The utility model discloses a theory of operation and application method:

when the device is used, the eddy current coil 10 is electrified to heat the slitting net knife 8, the motor 16 drives the gear 17 to rotate, the gear 17 is meshed with the fluted disc 15 and drives the driving pinch roller 1 to rotate, the driving pinch roller 1 and the driven pinch roller 2 rotate to drive the wire 11 to move towards the branch pipe 4 and extrude the slitting net knife 8, the wire 11 is cut by the slitting net knife 8 and is divided into a plurality of groups of lines to penetrate through the slitting net knife 8, meanwhile, the slitting net knife 8 plays a role in heating and softening the wires, the pretreatment is carried out for further heating and melting, the uniformity after melting is improved, the hardness is improved, when the material of the wire 11 is made, the wire 11 extrudes the slitting net knife 8 to drive the sliding pipe 5 to move along the inner wall of the branch pipe 4 through the first sliding table 6 and the second sliding table 7 and stretch the tension spring 9, so that the length of the slitting net knife 8 entering the inner area of the eddy current coil 10 is longer, more heat is generated, and the surface temperature of the slitting net knife 8 is increased, the preheating effect on the wire 11 is improved.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. The consumable pretreatment device for the 3D printer is characterized by comprising a driving pinch roller (1) and a driven pinch roller (2), wherein the driven pinch roller (2) is located above the driving pinch roller (1), one side of the driving pinch roller (1) is provided with a U-shaped support (3), the U-shaped support (3) is far away from a side wall of one end of the driving pinch roller (1) and is fixed with a branch pipe (4), a sliding pipe (5) is arranged in an inner cavity of the branch pipe (4), two ends of the outer surface of the sliding pipe (5) are respectively fixed with a first sliding table (6) and a second sliding table (7), the outer sides of the circumferences of the first sliding table (6) and the second sliding table (7) are respectively in sliding connection with the inner wall of the branch pipe (4), a slitting net knife (8) is fixed on the inner wall of the sliding pipe (5), a tension spring (9) is fixed between the inner walls of one ends of the first sliding table (6) and the branch pipe (4) close to the driving pinch roller (1), branch pipe (4) are close to the inside nested eddy current coil (10) that has of outer wall of second slip table (7) department, initiative pinch roller (1) with the laminating has wire rod (11) between driven pinch roller (2), the one end of wire rod (11) alternates to the inside of slide pipe (5).

2. The consumable pretreatment device for the 3D printer according to claim 1, wherein a sliding groove (12) is formed in one end, close to the driven pinch roller (2), of the U-shaped support (3), a sliding block (13) is rotatably connected to a rotating shaft at one end of the driven pinch roller (2), the sliding block (13) is slidably nested in the inner wall of the sliding groove (12), and a pressure spring (14) is fixed between the top surface of the sliding block (13) and the top wall of the sliding groove (12).

3. The consumable pretreatment device for the 3D printer according to claim 2, wherein one end of a rotating shaft of the driving pinch roller (1) penetrates through the side wall of the U-shaped support (3) and a fluted disc (15) is fixed at the tail end of the rotating shaft, the one end of the rotating shaft of the driving pinch roller (1) is rotatably connected with the side wall of the U-shaped support (3), a motor (16) is arranged below the fluted disc (15), the motor (16) is fixedly connected with the side wall of the U-shaped support (3), a gear (17) is fixed at the tail end of an output shaft of the motor (16), and the gear (17) is meshed with the fluted disc (15).

4. The consumable preprocessing device for the 3D printer according to claim 3, characterized in that a guide tube (18) is fixed to one end of the branch tube (4) close to the active pinch roller (1), one end of the guide tube (18) extends to the inside of the branch tube (4), and the guide tube (18) is in a bell mouth shape.

5. The consumable preprocessing device for the 3D printer according to claim 4, wherein the circumference of the driving pinch roller (1) and the driven pinch roller (2) is concave, and the circumference of the driving pinch roller (1) and the driven pinch roller (2) is engraved with stripe lines.

6. The consumable pretreatment device for the 3D printer according to claim 5, wherein the cross section of the slitting net knife (8) is of a net structure and is close to one end of the tension spring (9), the slitting net knife (8) is made of metal, and the branch pipe (4), the first sliding table (6), the second sliding table (7) and the sliding pipe (5) are made of high-temperature-resistant non-metal materials.

7. The consumable pretreatment device for a 3D printer according to claim 6, characterized in that the motor (16) is a variable frequency motor, and one third of the length of the slitting mesh knife (8) is located in the inner region of the eddy current coil (10).