CN220883426U

CN220883426U - Material breaking and blocking detection device for 3D printer

Info

Publication number: CN220883426U
Application number: CN202322625177.8U
Authority: CN
Inventors: 岳浏洋; 路创意; 李向阳
Original assignee: Zhengzhou Chaokuo Electronic Technology Co ltd
Current assignee: Zhengzhou Chaokuo Electronic Technology Co ltd
Priority date: 2023-09-27
Filing date: 2023-09-27
Publication date: 2024-05-03
Anticipated expiration: 2033-09-27

Abstract

The utility model discloses a material breaking and blocking detection device for a 3D printer, which comprises a shell, wherein a consumable channel is arranged in the shell in a penetrating way; the shell is also internally provided with a first cavity for accommodating the rotating block, the side wall of the first cavity is provided with an opening communicated with the consumable channel, and the rotating block extends into the consumable channel through the opening; the shell is internally provided with a second cavity for accommodating the contact switch, the side wall of the second cavity is provided with a through hole communicated with the consumable channel, and a contact of the contact switch extends into the consumable channel through the through hole; the utility model has the beneficial effects that: the consumable drives the rotating block to rotate when moving in the channel, so that the blocking detection is realized; the consumable is continuously extruded to contact switch when moving in the passageway, realizes disconnected material detection, realizes detecting the while of disconnected material and putty, improves printing efficiency.

Description

Material breaking and blocking detection device for 3D printer

Technical Field

The utility model relates to the technical field of 3D printing, in particular to a broken material and blocked material detection device for a 3D printer.

Background

In the 3D printing process by using the FDM hot melting technology, abnormal conditions such as material breakage, material blocking and the like often occur in a 3D printer, so that the printing model is scrapped due to material shortage or the printing is failed.

At present, the traditional desktop FDM 3D printer lacks material detection device on the market is based on limit switch technique, and the material advances through the material pipe to compress tightly limit switch's shell fragment, trigger limit switch and produce the signal, when the material used up, limit switch resets, and the signal disappeared, detects whether the material used up with this mode. However, since the material shortage detection device is based on the limit switch technology, when the printing head is blocked, the material is stopped to be fed, and the device cannot detect the material.

Therefore, it is highly desirable to design a device capable of detecting both the problems of material breakage and material blockage.

Disclosure of Invention

The utility model aims to provide a material breaking and blocking detection device for a 3D printer, so that consumable materials can be detected simultaneously in a material breaking and blocking mode, and the 3D printing efficiency is improved.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

A material breaking and blocking detection device for a 3D printer comprises a shell, wherein a consumable channel is arranged in the shell in a penetrating manner;

a rotating block is also arranged in the shell, and the outer side of the rotating block extends into the consumable channel;

A contact switch is also arranged in the shell, and a contact of the contact switch stretches into the consumable channel;

When the consumable moves in the consumable channel, the rotary block is pushed to continuously rotate and simultaneously continuously extrude the contact switch so as to realize detection of broken materials and blocked materials of the printer.

Preferably, a first cavity for accommodating the rotating block is further formed in the shell, an opening for communicating with the consumable channel is formed in the side wall of the first cavity, and the rotating block extends into the consumable channel through the opening.

Preferably, a second cavity for accommodating the contact switch is further formed in the shell, a through hole for communicating with the consumable channel is formed in the side wall of the second cavity, and the contact extends into the consumable channel through the through hole.

Preferably, the first cavity is cylindrical, and a fixed shaft for installing the rotating block is arranged at the center of the bottom surface of the first cavity.

Preferably, a grid is arranged on the outer side of the rotating block, and a photoelectric switch for detecting grid rotation is further arranged in the shell.

Preferably, the side wall of the first cavity is provided with a mounting groove communicated with the first cavity, and the photoelectric switch is arranged in the mounting groove.

Preferably, a third cavity for accommodating the wiring terminal is further arranged in the shell;

The wiring terminal, the contact switch and the photoelectric switch are all electrically connected with the circuit board, and the circuit board is arranged inside the shell.

Preferably, the front end of the contact is provided with a chamfer for facilitating the consumable to pass through the consumable channel.

Preferably, both ends of the consumable channel are respectively provided with a feed inlet and a discharge outlet, and the inner diameters of the feed inlet and the discharge outlet are both larger than the inner diameter of the consumable channel.

Preferably, the side wall of the shell is provided with a cover plate for closing the shell, and the cover plate is fixedly arranged on the shell;

The shell outside is provided with the otic placode, is provided with the casing mounting hole that is used for fixed casing on the otic placode.

The utility model has the beneficial effects that:

1. The consumable drives the rotating block to rotate when moving in the channel, so that the blocking detection is realized; the consumable is continuously extruded to contact switch when moving in the passageway, realizes disconnected material detection, realizes detecting the while of disconnected material and putty, improves printing efficiency.

2. The device can be conveniently installed and fixed through the lug plate, and the inner diameters of the feed inlet and the discharge outlet are both larger than the inner diameter of the consumable channel, so that the consumable can be conveniently guided into the channel.

3. The arc is arranged at the front end of the contact switch, so that consumable materials can be conveniently extruded and passed through in an initial state.

Drawings

FIG. 1 is an isometric view of the present utility model;

FIG. 2 is an isometric view of another angle of the present utility model;

FIG. 3 is an isometric view of the housing;

FIG. 4 is an isometric view of the housing after installation of various fittings therein;

fig. 5 is a view of the installation of the circuit board in the housing;

FIG. 6 is a schematic diagram of the mating of the optoelectronic switch and the rotating block;

FIG. 7 is an isometric view of a contact switch;

FIG. 8 is a top view of the present utility model;

FIG. 9 is a cross-sectional view A-A of FIG. 8;

FIG. 10 is a sectional view B-B of FIG. 8;

FIG. 11 is a cross-sectional view of C-C of FIG. 8;

fig. 12 is a D-D sectional view of fig. 10.

The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

Examples

As shown in fig. 3, 4 and 12, the device for detecting material breakage and blockage for a 3D printer according to the embodiment of the present utility model includes a housing 1 with an integrally formed structure, and a consumable channel 19 penetrating from the inside of the housing 1 is provided in the housing 1;

A rotating block 8 is also arranged in the shell 1, and the outer side of the rotating block 8 extends into the consumable channel 19; when the consumable moves in the consumable channel 19, the moving process of the consumable can drive the rotating block 8 to continuously rotate, and once the plugging material occurs, the consumable is accumulated in the consumable channel 19 and does not move any more, the rotating block 8 stops rotating, and the printer plugging material can be detected by observing the rotating condition of the rotating block 8.

A contact switch 7 is also arranged in the shell 1, and a contact 71 of the contact switch 7 extends into the consumable channel 19; when the consumable moves in the consumable channel 19, the contact 71 is continuously extruded, and once the material is broken, the contact 71 is automatically ejected and stretches into the consumable channel 19, and the detection of broken material of the printer can be realized by detecting that the contact 71 of the contact switch 7 is compressed or ejected.

When the consumable moves in the consumable channel 19, the rotating block 8 is pushed to continuously rotate and simultaneously continuously squeeze the contact switch 7 so as to realize detection of broken materials and blocked materials of the printer.

As shown in fig. 9 and 10, a first cavity 11 for accommodating the rotary block 8 is formed in the shell 1, an opening 13 communicated with the consumable channel 19 is formed in the side wall of the first cavity 11, and the rotary block 8 extends into the consumable channel 19 through the opening 13;

The first cavity 11 is cylindrical, the center of the circle department of first cavity 11 bottom surface is provided with the fixed axle 12 of installation rotatory piece 8, can also increase the bearing between the centre bore of fixed axle 12 and rotatory piece 8 to reduce the frictional force of rotatory piece 8 rotation process, make things convenient for the consumptive material to pass in from consumptive material passageway 19.

As shown in fig. 7 and 11, a second cavity 15 for accommodating the contact switch 7 is formed in the shell 1, a through hole 18 for communicating with the consumable channel 19 is formed in the side wall of the second cavity 15, and a contact 71 of the contact switch 7 extends into the consumable channel 19 through the through hole 18; the contact 71 is pressed back into the second cavity 15 as the consumable moves within the consumable channel 19.

The front end of the contact 71 of the contact switch 7 is provided with a chamfer which is convenient for consumable to pass through the consumable channel 19, and the chamfer can adopt a chamfering or beveling mode and the like. A gap is left between the front section of the contact 71 and the side wall of the consumable channel 19, so that consumable can pass through the consumable channel 19 once again after primary or broken, and blocking is avoided.

As shown in fig. 6, a grating 81 is provided on the outer side of the rotating block 8, a photoelectric switch 6 for detecting the rotation of the grating 81 is further installed in the housing 1, a mounting groove 14 communicated with the first cavity 11 is provided on the side wall of the first cavity, and the photoelectric switch 6 is installed in the mounting groove 14.

As shown in fig. 3, 4 and 5, a third cavity 16 for accommodating the wiring terminal 3 is formed in the housing 1; the wiring terminal 3, the contact switch 7 and the photoelectric switch 6 are all electrically connected with a circuit board 9, and the circuit board 9 is arranged inside the shell 1.

As shown in fig. 9 and 11, two ends of the consumable channel 19 are respectively provided with a feed inlet 2 and a discharge outlet 10, the inner diameters of the feed inlet 2 and the discharge outlet 10 are both larger than the inner diameter of the consumable channel 19, and any one of the two ends of the consumable channel 19 can be selected as the feed inlet 2, in this embodiment, when the consumable moves in the consumable channel 19, the rotating block 8 is driven to rotate first, and then the contact switch 7 is extruded; in some embodiments, the contact switch 7 may be pressed first, and then the rotating block 8 may be driven to rotate.

As shown in fig. 1 and 2, a cover plate 5 for closing the casing 1 is mounted on the side wall of the casing 1, the cover plate 5 is fixedly mounted on the casing 1, a cover plate mounting hole 17 is formed in the casing 1, and when components in the casing are mounted or overhauled, the cover plate 5 can be removed, and the casing is mounted again after the overhauling is finished. The lug plate 4 is integrally formed on the outer side of the shell 1, and a shell mounting hole 41 for fixing the shell 1 is formed in the lug plate 4, so that the whole device can be fixedly mounted.

In the use process of the embodiment, in the process of moving consumable in the consumable channel 19, the rotating block 8 is driven to rotate, the photoelectric switch 6 is used for detecting a rotating signal of the grating 81, when the consumable stops moving due to material blockage, the grating 81 stops rotating, the photoelectric switch 6 sends out a signal, and at the moment, consumable conveying is stopped, and the machine is stopped to check faults; the consumable still can continue extrusion contact 71 in the in-process that removes in consumable passageway 19, and the consumable opens or lacks the material, no longer extrudees contact 71, and contact 71 freely pops out, and contact switch 7 sends the signal this moment, stops the consumable and carries, shut down troubleshooting to this realizes the double fault detection to disconnected material and putty.

The present embodiment is not limited in any way by the shape, material, structure, etc. of the present utility model, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present utility model are all included in the scope of protection of the technical solution of the present utility model.

In the description of the present utility model, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the protection of the present utility model.

If the terms "first," "second," etc. are used herein to define a part, those skilled in the art will recognize that: the use of "first" and "second" is for convenience only as well as for simplicity of description, and nothing more than a particular meaning of the terms is intended to be used unless otherwise stated.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be replaced with others, which may not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The utility model provides a disconnected material, putty detection device for 3D printer, includes the casing, its characterized in that is provided with the consumptive material passageway in the casing run through;

When the consumable moves in the consumable channel, the rotating block is pushed to continuously rotate and simultaneously continuously extrude the contact switch so as to realize detection of broken materials and blocked materials of the printer;

The outside of rotatory piece is provided with the grid, still is provided with the photoelectric switch that is used for detecting the grid rotation in the casing.

2. The device for detecting material breakage and blockage of a 3D printer according to claim 1, wherein a first cavity for accommodating the rotating block is further formed in the shell, an opening communicated with the consumable channel is formed in the side wall of the first cavity, and the rotating block extends into the consumable channel through the opening.

3. The device for detecting disconnection and blockage of a 3D printer according to claim 1, wherein a second cavity for accommodating a contact switch is further formed in the shell, a through hole for communicating a consumable channel is formed in the side wall of the second cavity, and the contact extends into the consumable channel through the through hole.

4. The device for detecting breakage and blockage of a 3D printer according to claim 2, wherein the first cavity is cylindrical, and a fixed shaft for installing the rotating block is arranged at the center of the bottom surface of the first cavity.

5. The device for detecting disconnection and blockage of a 3D printer according to claim 4, wherein the side wall of the first cavity is provided with a mounting groove communicated with the first cavity, and the photoelectric switch is arranged in the mounting groove.

6. The device for detecting disconnection and blockage of a 3D printer according to claim 4, wherein a third cavity for accommodating a connection terminal is further provided in the housing;

7. A 3D printer-use breakage and blockage detection device according to claim 3, wherein the front end of the contact is provided with a chamfer angle for facilitating consumable passing through the consumable channel.

8. The device for detecting material breakage and blockage of a 3D printer according to claim 1, wherein the two ends of the consumable channel are respectively provided with a feed inlet and a discharge outlet, and the inner diameters of the feed inlet and the discharge outlet are both larger than the inner diameter of the consumable channel.

9. The device for detecting breakage and blockage of a 3D printer according to claim 1, wherein a cover plate for closing the casing is arranged on the side wall of the casing, and the cover plate is fixedly installed on the casing;